8180568: Refactor javax/crypto shell tests to plain java tests

Reviewed-by: wetmore

.gitattributes

@@ -0,0 +1 @@
+*	-text

.gitignore

@@ -2,6 +2,7 @@
 /dist/
 /.idea/
 /.vscode/
+/nbproject/
 nbproject/private/
 /webrev
 /.src-rev
@@ -14,3 +15,4 @@ test/nashorn/lib
 NashornProfile.txt
 **/JTreport/**
 **/JTwork/**
+/src/utils/LogCompilation/target/

.hgignore

@@ -1,18 +0,0 @@
-^build/
-^dist/
-^.idea/
-^.vscode/
-nbproject/private/
-^webrev
-^.src-rev$
-^.jib/
-(^|/)\.DS_Store
-(^|/)\.metadata/
-(^|/)\.recommenders/
-test/nashorn/script/external
-test/nashorn/lib
-NashornProfile.txt
-(^|/)JTreport/
-(^|/)JTwork/
-(^|/)\.git/
-^src/utils/hsdis/build/

.hgtags

@@ -644,3 +644,21 @@ f143729ca00ec14a98ea5c7f73acba88da97746e jdk-15+23
 bcbe7b8a77b8971bc221c0be1bd2abb6fb68c2d0 jdk-16+2
 b58fc60580550a4a587cab729d8fd87223ad6932 jdk-15+29
 76810b3a88c8c641ae3850a8dfd7c40c984aea9d jdk-16+3
+6909e4a1f25bfe9a2727026f5845fc1fc44a36aa jdk-15+30
+e2622818f0bd30e736252eba101fe7d2c27f400b jdk-16+4
+a32f58c6b8be81877411767de7ba9c4cf087c1b5 jdk-15+31
+143e258f64af490010eb7e0bacc1cfaeceff0993 jdk-16+5
+2dad000726b8d5db9f3df647fb4949d88f269dd4 jdk-15+32
+4a8fd81d64bafa523cddb45f82805536edace106 jdk-16+6
+6b65f4e7a975628df51ef755b02642075390041d jdk-15+33
+c3a4a7ea7c304cabdacdc31741eb94c51351668d jdk-16+7
+b0817631d2f4395508cb10e81c3858a94d9ae4de jdk-15+34
+0a73d6f3aab48ff6d7e61e47f0bc2d87a054f217 jdk-16+8
+fd60c3146a024037cdd9be34c645bb793995a7cc jdk-15+35
+c075a286cc7df767cce28e8057d6ec5051786490 jdk-16+9
+b01985b4f88f554f97901e53e1ba314681dd9c19 jdk-16+10
+e3f940bd3c8fcdf4ca704c6eb1ac745d155859d5 jdk-15+36
+5c18d696c7ce724ca36df13933aa53f50e12b9e0 jdk-16+11
+fc8e62b399bd93d06e8d13dc3b384c450e853dcd jdk-16+12
+fd07cdb26fc70243ef23d688b545514f4ddf1c2b jdk-16+13
+36b29df125dc88f11657ce93b4998aa9ff5f5d41 jdk-16+14

.jcheck/conf

@@ -1,2 +1,34 @@
+[general]
 project=jdk
-bugids=dup
+jbs=JDK
+
+[checks]
+error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace,problemlists
+
+[repository]
+tags=(?:jdk-(?:[1-9]([0-9]*)(?:\.(?:0|[1-9][0-9]*)){0,4})(?:\+(?:(?:[0-9]+))|(?:-ga)))|(?:jdk[4-9](?:u\d{1,3})?-(?:(?:b\d{2,3})|(?:ga)))|(?:hs\d\d(?:\.\d{1,2})?-b\d\d)
+branches=
+
+[census]
+version=0
+domain=openjdk.org
+
+[checks "whitespace"]
+files=.*\.cpp|.*\.hpp|.*\.c|.*\.h|.*\.java|.*\.cc|.*\.hh|.*\.m|.*\.mm|.*\.gmk|.*\.m4|.*\.ac|Makefile
+ignore-tabs=.*\.gmk|Makefile
+
+[checks "merge"]
+message=Merge
+
+[checks "reviewers"]
+reviewers=1
+ignore=duke
+
+[checks "committer"]
+role=committer
+
+[checks "issues"]
+pattern=^([124-8][0-9]{6}): (\S.*)$
+
+[checks "problemlists"]
+dirs=test/jdk|test/langtools|test/lib-test|test/hotspot/jtreg|test/jaxp

CONTRIBUTING.md

@@ -0,0 +1,3 @@
+# Contributing to the JDK
+
+Please see <https://openjdk.java.net/contribute/> for how to contribute.

README

@@ -1,12 +0,0 @@
-
-Welcome to the JDK!
-===================
-
-For information about building the JDK, including how to retrieve all
-of the source code, please see either of these files:
-
-  * doc/building.html   (html version)
-  * doc/building.md     (markdown version)
-
-See http://openjdk.java.net/ for more information about the OpenJDK
-Community and the JDK.

README.md

@@ -0,0 +1,11 @@
+# Welcome to the JDK!
+
+For build instructions please see the
+[online documentation](https://openjdk.java.net/groups/build/doc/building.html),
+or either of these files:
+
+- [doc/building.html](doc/building.html) (html version)
+- [doc/building.md](doc/building.md) (markdown version)
+
+See <https://openjdk.java.net/> for more information about
+the OpenJDK Community and the JDK.

bin/idea.sh

@@ -147,13 +147,7 @@ add_replacement() {
 add_replacement "###MODULE_NAMES###" "$MODULE_NAMES"
 add_replacement "###VCS_TYPE###" "$VCS_TYPE"
 SPEC_DIR=`dirname $SPEC`
-if [ "x$CYGPATH" = "x" ]; then
-    add_replacement "###BUILD_DIR###" "$SPEC_DIR"
-    add_replacement "###JTREG_HOME###" "$JT_HOME"
-    add_replacement "###IMAGES_DIR###" "$SPEC_DIR/images/jdk"
-    add_replacement "###ROOT_DIR###" "$TOPLEVEL_DIR"
-    add_replacement "###IDEA_DIR###" "$IDEA_OUTPUT"
-else
+if [ "x$CYGPATH" != "x" ]; then
     add_replacement "###BUILD_DIR###" "`cygpath -am $SPEC_DIR`"
     add_replacement "###IMAGES_DIR###" "`cygpath -am $SPEC_DIR`/images/jdk"
     add_replacement "###ROOT_DIR###" "`cygpath -am $TOPLEVEL_DIR`"
@@ -163,6 +157,22 @@ else
     else
       add_replacement "###JTREG_HOME###" "`cygpath -am $JT_HOME`"
     fi
+elif [ "x$WSL_DISTRO_NAME" != "x" ]; then
+    add_replacement "###BUILD_DIR###" "`wslpath -am $SPEC_DIR`"
+    add_replacement "###IMAGES_DIR###" "`wslpath -am $SPEC_DIR`/images/jdk"
+    add_replacement "###ROOT_DIR###" "`wslpath -am $TOPLEVEL_DIR`"
+    add_replacement "###IDEA_DIR###" "`wslpath -am $IDEA_OUTPUT`"
+    if [ "x$JT_HOME" = "x" ]; then
+      add_replacement "###JTREG_HOME###" ""
+    else
+      add_replacement "###JTREG_HOME###" "`wslpath -am $JT_HOME`"
+    fi
+else
+    add_replacement "###BUILD_DIR###" "$SPEC_DIR"
+    add_replacement "###JTREG_HOME###" "$JT_HOME"
+    add_replacement "###IMAGES_DIR###" "$SPEC_DIR/images/jdk"
+    add_replacement "###ROOT_DIR###" "$TOPLEVEL_DIR"
+    add_replacement "###IDEA_DIR###" "$IDEA_OUTPUT"
 fi
 
 SOURCE_PREFIX="<sourceFolder url=\"file://"
@@ -170,9 +180,22 @@ SOURCE_POSTFIX="\" isTestSource=\"false\" />"
 
 for root in $MODULE_ROOTS; do
     if [ "x$CYGPATH" != "x" ]; then
-    	root=`cygpath -am $root`
+      root=`cygpath -am $root`
+    elif [ "x$WSL_DISTRO_NAME" != "x" ]; then
+      root=`wslpath -am $root`
+    fi
+
+    VM_CI="jdk.internal.vm.ci/share/classes"
+    VM_COMPILER="src/jdk.internal.vm.compiler/share/classes"
+    if test "${root#*$VM_CI}" != "$root" || test "${root#*$VM_COMPILER}" != "$root"; then
+        for subdir in "$root"/*; do
+            if [ -d "$subdir" ]; then
+                SOURCES=$SOURCES" $SOURCE_PREFIX""$subdir"/src"$SOURCE_POSTFIX"
+            fi
+        done
+    else
+        SOURCES=$SOURCES" $SOURCE_PREFIX""$root""$SOURCE_POSTFIX"
     fi
-    SOURCES=$SOURCES" $SOURCE_PREFIX""$root""$SOURCE_POSTFIX"
 done
 
 add_replacement "###SOURCE_ROOTS###" "$SOURCES"
@@ -196,16 +219,30 @@ fi
 CP=$ANT_HOME/lib/ant.jar
 rm -rf $CLASSES; mkdir $CLASSES
 
-if [ "x$CYGPATH" = "x" ] ; then ## CYGPATH may be set in env.cfg
-  JAVAC_SOURCE_FILE=$IDEA_OUTPUT/src/idea/IdeaLoggerWrapper.java
-  JAVAC_SOURCE_PATH=$IDEA_OUTPUT/src
-  JAVAC_CLASSES=$CLASSES
-  JAVAC_CP=$CP
-else
+if [ "x$CYGPATH" != "x" ] ; then ## CYGPATH may be set in env.cfg
   JAVAC_SOURCE_FILE=`cygpath -am $IDEA_OUTPUT/src/idea/IdeaLoggerWrapper.java`
   JAVAC_SOURCE_PATH=`cygpath -am $IDEA_OUTPUT/src`
   JAVAC_CLASSES=`cygpath -am $CLASSES`
   JAVAC_CP=`cygpath -am $CP`
+  JAVAC=javac
+elif [ "x$WSL_DISTRO_NAME" != "x" ]; then
+  JAVAC_SOURCE_FILE=`realpath --relative-to=./ $IDEA_OUTPUT/src/idea/IdeaLoggerWrapper.java`
+  JAVAC_SOURCE_PATH=`realpath --relative-to=./ $IDEA_OUTPUT/src`
+  JAVAC_CLASSES=`realpath --relative-to=./ $CLASSES`
+  ANT_TEMP=`mktemp -d -p ./`
+  cp $ANT_HOME/lib/ant.jar $ANT_TEMP/ant.jar
+  JAVAC_CP=$ANT_TEMP/ant.jar
+  JAVAC=javac.exe
+else
+  JAVAC_SOURCE_FILE=$IDEA_OUTPUT/src/idea/IdeaLoggerWrapper.java
+  JAVAC_SOURCE_PATH=$IDEA_OUTPUT/src
+  JAVAC_CLASSES=$CLASSES
+  JAVAC_CP=$CP
+  JAVAC=javac
 fi
 
-$BOOT_JDK/bin/javac -d $JAVAC_CLASSES -sourcepath $JAVAC_SOURCE_PATH -cp $JAVAC_CP $JAVAC_SOURCE_FILE
+$BOOT_JDK/bin/$JAVAC -d $JAVAC_CLASSES -sourcepath $JAVAC_SOURCE_PATH -cp $JAVAC_CP $JAVAC_SOURCE_FILE
+
+if [ "x$WSL_DISTRO_NAME" != "x" ]; then
+  rm -rf $ANT_TEMP
+fi

doc/building.html

@@ -76,8 +76,9 @@
 <li><a href="#specifying-the-target-platform">Specifying the Target Platform</a></li>
 <li><a href="#toolchain-considerations">Toolchain Considerations</a></li>
 <li><a href="#native-libraries">Native Libraries</a></li>
-<li><a href="#creating-and-using-sysroots-with-qemu-deboostrap">Creating And Using Sysroots With qemu-deboostrap</a></li>
+<li><a href="#cross-compiling-with-debian-sysroots">Cross compiling with Debian sysroots</a></li>
 <li><a href="#building-for-armaarch64">Building for ARM/aarch64</a></li>
+<li><a href="#building-for-musl">Building for musl</a></li>
 <li><a href="#verifying-the-build">Verifying the Build</a></li>
 </ul></li>
 <li><a href="#build-performance">Build Performance</a><ul>
@@ -96,12 +97,10 @@
 <li><a href="#getting-help">Getting Help</a></li>
 </ul></li>
 <li><a href="#hints-and-suggestions-for-advanced-users">Hints and Suggestions for Advanced Users</a><ul>
-<li><a href="#setting-up-a-repository-for-pushing-changes-defpath">Setting Up a Repository for Pushing Changes (defpath)</a></li>
 <li><a href="#bash-completion">Bash Completion</a></li>
 <li><a href="#using-multiple-configurations">Using Multiple Configurations</a></li>
 <li><a href="#handling-reconfigurations">Handling Reconfigurations</a></li>
 <li><a href="#using-fine-grained-make-targets">Using Fine-Grained Make Targets</a></li>
-<li><a href="#learn-about-mercurial">Learn About Mercurial</a></li>
 </ul></li>
 <li><a href="#understanding-the-build-system">Understanding the Build System</a><ul>
 <li><a href="#configurations">Configurations</a></li>
@@ -115,10 +114,10 @@
 </ul>
 </nav>
 <h2 id="tldr-instructions-for-the-impatient">TL;DR (Instructions for the Impatient)</h2>
-<p>If you are eager to try out building the JDK, these simple steps works most of the time. They assume that you have installed Mercurial (and Cygwin if running on Windows) and cloned the top-level JDK repository that you want to build.</p>
+<p>If you are eager to try out building the JDK, these simple steps works most of the time. They assume that you have installed Git (and Cygwin if running on Windows) and cloned the top-level JDK repository that you want to build.</p>
 <ol type="1">
 <li><p><a href="#getting-the-source-code">Get the complete source code</a>:<br />
-<code>hg clone http://hg.openjdk.java.net/jdk/jdk</code></p></li>
+<code>git clone https://git.openjdk.java.net/jdk/</code></p></li>
 <li><p><a href="#running-configure">Run configure</a>:<br />
 <code>bash configure</code></p>
 <p>If <code>configure</code> fails due to missing dependencies (to either the <a href="#native-compiler-toolchain-requirements">toolchain</a>, <a href="#build-tools-requirements">build tools</a>, <a href="#external-library-requirements">external libraries</a> or the <a href="#boot-jdk-requirements">boot JDK</a>), most of the time it prints a suggestion on how to resolve the situation on your platform. Follow the instructions, and try running <code>bash configure</code> again.</p></li>
@@ -134,8 +133,8 @@
 <p>The JDK is a complex software project. Building it requires a certain amount of technical expertise, a fair number of dependencies on external software, and reasonably powerful hardware.</p>
 <p>If you just want to use the JDK and not build it yourself, this document is not for you. See for instance <a href="http://openjdk.java.net/install">OpenJDK installation</a> for some methods of installing a prebuilt JDK.</p>
 <h2 id="getting-the-source-code">Getting the Source Code</h2>
-<p>Make sure you are getting the correct version. As of JDK 10, the source is no longer split into separate repositories so you only need to clone one single repository. At the <a href="http://hg.openjdk.java.net/">OpenJDK Mercurial server</a> you can see a list of all available repositories. If you want to build an older version, e.g. JDK 8, it is recommended that you get the <code>jdk8u</code> forest, which contains incremental updates, instead of the <code>jdk8</code> forest, which was frozen at JDK 8 GA.</p>
-<p>If you are new to Mercurial, a good place to start is the <a href="http://www.mercurial-scm.org/guide">Mercurial Beginner's Guide</a>. The rest of this document assumes a working knowledge of Mercurial.</p>
+<p>Make sure you are getting the correct version. As of JDK 10, the source is no longer split into separate repositories so you only need to clone one single repository. At the <a href="https://git.openjdk.java.net/">OpenJDK Git site</a> you can see a list of all available repositories. If you want to build an older version, e.g. JDK 11, it is recommended that you get the <code>jdk11u</code> repo, which contains incremental updates, instead of the <code>jdk11</code> repo, which was frozen at JDK 11 GA.</p>
+<p>If you are new to Git, a good place to start is the book <a href="https://git-scm.com/book/en/v2">Pro Git</a>. The rest of this document assumes a working knowledge of Git.</p>
 <h3 id="special-considerations">Special Considerations</h3>
 <p>For a smooth building experience, it is recommended that you follow these rules on where and how to check out the source code.</p>
 <ul>
@@ -146,7 +145,11 @@
 <ul>
 <li><p>Create the directory that is going to contain the top directory of the JDK clone by using the <code>mkdir</code> command in the Cygwin bash shell. That is, do <em>not</em> create it using Windows Explorer. This will ensure that it will have proper Cygwin attributes, and that it's children will inherit those attributes.</p></li>
 <li><p>Do not put the JDK clone in a path under your Cygwin home directory. This is especially important if your user name contains spaces and/or mixed upper and lower case letters.</p></li>
-<li><p>Clone the JDK repository using the Cygwin command line <code>hg</code> client as instructed in this document. That is, do <em>not</em> use another Mercurial client such as TortoiseHg.</p></li>
+<li><p>You need to install a git client. You have two choices, Cygwin git or Git for Windows. Unfortunately there are pros and cons with each choice.</p>
+<ul>
+<li><p>The Cygwin <code>git</code> client has no line ending issues and understands Cygwin paths (which are used throughout the JDK build system). However, it does not currently work well with the Skara CLI tooling. Please see the <a href="https://wiki.openjdk.java.net/display/SKARA/Skara#Skara-Git">Skara wiki on Git clients</a> for up-to-date information about the Skara git client support.</p></li>
+<li><p>The <a href="https://gitforwindows.org">Git for Windows</a> client has issues with line endings, and do not understand Cygwin paths. It does work well with the Skara CLI tooling, however. To alleviate the line ending problems, make sure you set <code>core.autocrlf</code> to <code>false</code> (this is asked during installation).</p></li>
+</ul></li>
 </ul>
 <p>Failure to follow this procedure might result in hard-to-debug build problems.</p></li>
 </ul>
@@ -193,7 +196,7 @@
 <p>Windows XP is not a supported platform, but all newer Windows should be able to build the JDK.</p>
 <p>On Windows, it is important that you pay attention to the instructions in the <a href="#special-considerations">Special Considerations</a>.</p>
 <p>Windows is the only non-POSIX OS supported by the JDK, and as such, requires some extra care. A POSIX support layer is required to build on Windows. Currently, the only supported such layers are Cygwin and Windows Subsystem for Linux (WSL). (Msys is no longer supported due to a too old bash; msys2 would likely be possible to support in a future version but that would require effort to implement.)</p>
-<p>Internally in the build system, all paths are represented as Unix-style paths, e.g. <code>/cygdrive/c/hg/jdk9/Makefile</code> rather than <code>C:\hg\jdk9\Makefile</code>. This rule also applies to input to the build system, e.g. in arguments to <code>configure</code>. So, use <code>--with-msvcr-dll=/cygdrive/c/msvcr100.dll</code> rather than <code>--with-msvcr-dll=c:\msvcr100.dll</code>. For details on this conversion, see the section on <a href="#fixpath">Fixpath</a>.</p>
+<p>Internally in the build system, all paths are represented as Unix-style paths, e.g. <code>/cygdrive/c/git/jdk/Makefile</code> rather than <code>C:\git\jdk\Makefile</code>. This rule also applies to input to the build system, e.g. in arguments to <code>configure</code>. So, use <code>--with-msvcr-dll=/cygdrive/c/msvcr100.dll</code> rather than <code>--with-msvcr-dll=c:\msvcr100.dll</code>. For details on this conversion, see the section on <a href="#fixpath">Fixpath</a>.</p>
 <h4 id="cygwin">Cygwin</h4>
 <p>A functioning <a href="http://www.cygwin.com/">Cygwin</a> environment is required for building the JDK on Windows. If you have a 64-bit OS, we strongly recommend using the 64-bit version of Cygwin.</p>
 <p><strong>Note:</strong> Cygwin has a model of continuously updating all packages without any easy way to install or revert to a specific version of a package. This means that whenever you add or update a package in Cygwin, you might (inadvertently) update tools that are used by the JDK build process, and that can cause unexpected build problems.</p>
@@ -224,6 +227,8 @@
 <pre><code>sudo apt-get install build-essential</code></pre>
 <p>For rpm-based distributions (Fedora, Red Hat, etc), try this:</p>
 <pre><code>sudo yum groupinstall &quot;Development Tools&quot;</code></pre>
+<p>For Alpine Linux, aside from basic tooling, install the GNU versions of some programs:</p>
+<pre><code>sudo apk add build-base bash grep zip</code></pre>
 <h3 id="aix">AIX</h3>
 <p>Please consult the AIX section of the <a href="https://wiki.openjdk.java.net/display/Build/Supported+Build+Platforms">Supported Build Platforms</a> OpenJDK Build Wiki page for details about which versions of AIX are supported.</p>
 <h2 id="native-compiler-toolchain-requirements">Native Compiler (Toolchain) Requirements</h2>
@@ -265,7 +270,7 @@
 <tbody>
 <tr class="odd">
 <td style="text-align: left;">Linux</td>
-<td style="text-align: left;">gcc 9.2.0</td>
+<td style="text-align: left;">gcc 10.2.0</td>
 </tr>
 <tr class="even">
 <td style="text-align: left;">macOS</td>
@@ -273,17 +278,17 @@
 </tr>
 <tr class="odd">
 <td style="text-align: left;">Windows</td>
-<td style="text-align: left;">Microsoft Visual Studio 2019 update 16.5.3</td>
+<td style="text-align: left;">Microsoft Visual Studio 2019 update 16.7.2</td>
 </tr>
 </tbody>
 </table>
 <p>All compilers are expected to be able to compile to the C99 language standard, as some C99 features are used in the source code. Microsoft Visual Studio doesn't fully support C99 so in practice shared code is limited to using C99 features that it does support.</p>
 <h3 id="gcc">gcc</h3>
 <p>The minimum accepted version of gcc is 5.0. Older versions will generate a warning by <code>configure</code> and are unlikely to work.</p>
-<p>The JDK is currently known to be able to compile with at least version 9.2 of gcc.</p>
+<p>The JDK is currently known to be able to compile with at least version 10.2 of gcc.</p>
 <p>In general, any version between these two should be usable.</p>
 <h3 id="clang">clang</h3>
-<p>The minimum accepted version of clang is 3.2. Older versions will not be accepted by <code>configure</code>.</p>
+<p>The minimum accepted version of clang is 3.5. Older versions will not be accepted by <code>configure</code>.</p>
 <p>To use clang instead of gcc on Linux, use <code>--with-toolchain-type=clang</code>.</p>
 <h3 id="apple-xcode">Apple Xcode</h3>
 <p>The oldest supported version of Xcode is 8.</p>
@@ -292,9 +297,9 @@
 <p>It is advisable to keep an older version of Xcode for building the JDK when updating Xcode. This <a href="http://iosdevelopertips.com/xcode/install-multiple-versions-of-xcode.html">blog page</a> has good suggestions on managing multiple Xcode versions. To use a specific version of Xcode, use <code>xcode-select -s</code> before running <code>configure</code>, or use <code>--with-toolchain-path</code> to point to the version of Xcode to use, e.g. <code>configure --with-toolchain-path=/Applications/Xcode8.app/Contents/Developer/usr/bin</code></p>
 <p>If you have recently (inadvertently) updated your OS and/or Xcode version, and the JDK can no longer be built, please see the section on <a href="#problems-with-the-build-environment">Problems with the Build Environment</a>, and <a href="#getting-help">Getting Help</a> to find out if there are any recent, non-merged patches available for this update.</p>
 <h3 id="microsoft-visual-studio">Microsoft Visual Studio</h3>
-<p>The minimum accepted version of Visual Studio is 2010. Older versions will not be accepted by <code>configure</code>. The maximum accepted version of Visual Studio is 2019. Versions older than 2017 are unlikely to continue working for long.</p>
-<p>If you have multiple versions of Visual Studio installed, <code>configure</code> will by default pick the latest. You can request a specific version to be used by setting <code>--with-toolchain-version</code>, e.g. <code>--with-toolchain-version=2015</code>.</p>
-<p>If you get <code>LINK: fatal error LNK1123: failure during conversion to COFF: file invalid</code> when building using Visual Studio 2010, you have encountered <a href="http://support.microsoft.com/kb/2757355">KB2757355</a>, a bug triggered by a specific installation order. However, the solution suggested by the KB article does not always resolve the problem. See <a href="https://stackoverflow.com/questions/10888391">this stackoverflow discussion</a> for other suggestions.</p>
+<p>The minimum accepted version of Visual Studio is 2017. Older versions will not be accepted by <code>configure</code> and will not work. The maximum accepted version of Visual Studio is 2019.</p>
+<p>If you have multiple versions of Visual Studio installed, <code>configure</code> will by default pick the latest. You can request a specific version to be used by setting <code>--with-toolchain-version</code>, e.g. <code>--with-toolchain-version=2017</code>.</p>
+<p>If you have Visual Studio installed but <code>configure</code> fails to detect it, it may be because of <a href="#spaces-in-path">spaces in path</a>.</p>
 <h3 id="ibm-xl-cc">IBM XL C/C++</h3>
 <p>Please consult the AIX section of the <a href="https://wiki.openjdk.java.net/display/Build/Supported+Build+Platforms">Supported Build Platforms</a> OpenJDK Build Wiki page for details about which versions of XLC are supported.</p>
 <h2 id="boot-jdk-requirements">Boot JDK Requirements</h2>
@@ -314,6 +319,8 @@
 <ul>
 <li>To install on an apt-based Linux, try running <code>sudo apt-get install libfreetype6-dev</code>.</li>
 <li>To install on an rpm-based Linux, try running <code>sudo yum install freetype-devel</code>.</li>
+<li>To install on Alpine Linux, try running <code>sudo apk add freetype-dev</code>.</li>
+<li>To install on macOS, try running <code>brew install freetype</code>.</li>
 </ul>
 <p>Use <code>--with-freetype-include=&lt;path&gt;</code> and <code>--with-freetype-lib=&lt;path&gt;</code> if <code>configure</code> does not automatically locate the platform FreeType files.</p>
 <h3 id="cups">CUPS</h3>
@@ -321,6 +328,7 @@
 <ul>
 <li>To install on an apt-based Linux, try running <code>sudo apt-get install libcups2-dev</code>.</li>
 <li>To install on an rpm-based Linux, try running <code>sudo yum install cups-devel</code>.</li>
+<li>To install on Alpine Linux, try running <code>sudo apk add cups-dev</code>.</li>
 </ul>
 <p>Use <code>--with-cups=&lt;path&gt;</code> if <code>configure</code> does not properly locate your CUPS files.</p>
 <h3 id="x11">X11</h3>
@@ -328,6 +336,7 @@
 <ul>
 <li>To install on an apt-based Linux, try running <code>sudo apt-get install libx11-dev libxext-dev libxrender-dev libxrandr-dev libxtst-dev libxt-dev</code>.</li>
 <li>To install on an rpm-based Linux, try running <code>sudo yum install libXtst-devel libXt-devel libXrender-devel libXrandr-devel libXi-devel</code>.</li>
+<li>To install on Alpine Linux, try running <code>sudo apk add libx11-dev libxext-dev libxrender-dev libxrandr-dev libxtst-dev libxt-dev</code>.</li>
 </ul>
 <p>Use <code>--with-x=&lt;path&gt;</code> if <code>configure</code> does not properly locate your X11 files.</p>
 <h3 id="alsa">ALSA</h3>
@@ -335,6 +344,7 @@
 <ul>
 <li>To install on an apt-based Linux, try running <code>sudo apt-get install libasound2-dev</code>.</li>
 <li>To install on an rpm-based Linux, try running <code>sudo yum install alsa-lib-devel</code>.</li>
+<li>To install on Alpine Linux, try running <code>sudo apk add alsa-lib-dev</code>.</li>
 </ul>
 <p>Use <code>--with-alsa=&lt;path&gt;</code> if <code>configure</code> does not properly locate your ALSA files.</p>
 <h3 id="libffi">libffi</h3>
@@ -342,6 +352,7 @@
 <ul>
 <li>To install on an apt-based Linux, try running <code>sudo apt-get install libffi-dev</code>.</li>
 <li>To install on an rpm-based Linux, try running <code>sudo yum install libffi-devel</code>.</li>
+<li>To install on Alpine Linux, try running <code>sudo apk add libffi-dev</code>.</li>
 </ul>
 <p>Use <code>--with-libffi=&lt;path&gt;</code> if <code>configure</code> does not properly locate your libffi files.</p>
 <h2 id="build-tools-requirements">Build Tools Requirements</h2>
@@ -350,6 +361,7 @@
 <ul>
 <li>To install on an apt-based Linux, try running <code>sudo apt-get install autoconf</code>.</li>
 <li>To install on an rpm-based Linux, try running <code>sudo yum install autoconf</code>.</li>
+<li>To install on Alpine Linux, try running <code>sudo apk add autoconf</code>.</li>
 <li>To install on macOS, try running <code>brew install autoconf</code>.</li>
 <li>To install on Windows, try running <code>&lt;path to Cygwin setup&gt;/setup-x86_64 -q -P autoconf</code>.</li>
 </ul>
@@ -392,7 +404,7 @@
 <li><code>--enable-jvm-feature-&lt;feature&gt;</code> or <code>--disable-jvm-feature-&lt;feature&gt;</code> - Include (or exclude) <code>&lt;feature&gt;</code> as a JVM feature in Hotspot. You can also specify a list of features to be enabled, separated by space or comma, as <code>--with-jvm-features=&lt;feature&gt;[,&lt;feature&gt;...]</code>. If you prefix <code>&lt;feature&gt;</code> with a <code>-</code>, it will be disabled. These options will modify the default list of features for the JVM variant(s) you are building. For the <code>custom</code> JVM variant, the default list is empty. A complete list of valid JVM features can be found using <code>bash configure --help</code>.</li>
 <li><code>--with-target-bits=&lt;bits&gt;</code> - Create a target binary suitable for running on a <code>&lt;bits&gt;</code> platform. Use this to create 32-bit output on a 64-bit build platform, instead of doing a full cross-compile. (This is known as a <em>reduced</em> build.)</li>
 </ul>
-<p>On Linux, BSD and AIX, it is possible to override where Java by default searches for runtime/JNI libraries. This can be useful in situations where there is a special shared directory for system JNI libraries. This setting can in turn be overriden at runtime by setting the <code>java.library.path</code> property.</p>
+<p>On Linux, BSD and AIX, it is possible to override where Java by default searches for runtime/JNI libraries. This can be useful in situations where there is a special shared directory for system JNI libraries. This setting can in turn be overridden at runtime by setting the <code>java.library.path</code> property.</p>
 <ul>
 <li><code>--with-jni-libpath=&lt;path&gt;</code> - Use the specified path as a default when searching for runtime libraries.</li>
 </ul>
@@ -431,7 +443,7 @@
 <h3 id="configure-control-variables">Configure Control Variables</h3>
 <p>It is possible to control certain aspects of <code>configure</code> by overriding the value of <code>configure</code> variables, either on the command line or in the environment.</p>
 <p>Normally, this is <strong>not recommended</strong>. If used improperly, it can lead to a broken configuration. Unless you're well versed in the build system, this is hard to use properly. Therefore, <code>configure</code> will print a warning if this is detected.</p>
-<p>However, there are a few <code>configure</code> variables, known as <em>control variables</em> that are supposed to be overriden on the command line. These are variables that describe the location of tools needed by the build, like <code>MAKE</code> or <code>GREP</code>. If any such variable is specified, <code>configure</code> will use that value instead of trying to autodetect the tool. For instance, <code>bash configure MAKE=/opt/gnumake4.0/bin/make</code>.</p>
+<p>However, there are a few <code>configure</code> variables, known as <em>control variables</em> that are supposed to be overridden on the command line. These are variables that describe the location of tools needed by the build, like <code>MAKE</code> or <code>GREP</code>. If any such variable is specified, <code>configure</code> will use that value instead of trying to autodetect the tool. For instance, <code>bash configure MAKE=/opt/gnumake4.0/bin/make</code>.</p>
 <p>If a configure argument exists, use that instead, e.g. use <code>--with-jtreg</code> instead of setting <code>JTREGEXE</code>.</p>
 <p>Also note that, despite what autoconf claims, setting <code>CFLAGS</code> will not accomplish anything. Instead use <code>--with-extra-cflags</code> (and similar for <code>cxxflags</code> and <code>ldflags</code>).</p>
 <h2 id="running-make">Running Make</h2>
@@ -468,7 +480,7 @@
 <h3 id="make-control-variables">Make Control Variables</h3>
 <p>It is possible to control <code>make</code> behavior by overriding the value of <code>make</code> variables, either on the command line or in the environment.</p>
 <p>Normally, this is <strong>not recommended</strong>. If used improperly, it can lead to a broken build. Unless you're well versed in the build system, this is hard to use properly. Therefore, <code>make</code> will print a warning if this is detected.</p>
-<p>However, there are a few <code>make</code> variables, known as <em>control variables</em> that are supposed to be overriden on the command line. These make up the &quot;make time&quot; configuration, as opposed to the &quot;configure time&quot; configuration.</p>
+<p>However, there are a few <code>make</code> variables, known as <em>control variables</em> that are supposed to be overridden on the command line. These make up the &quot;make time&quot; configuration, as opposed to the &quot;configure time&quot; configuration.</p>
 <h4 id="general-make-control-variables">General Make Control Variables</h4>
 <ul>
 <li><code>JOBS</code> - Specify the number of jobs to build with. See <a href="#build-performance">Build Performance</a>.</li>
@@ -617,78 +629,154 @@ cp: cannot stat `arm-linux-gnueabihf/libSM.so&#39;: No such file or directory
 cp: cannot stat `arm-linux-gnueabihf/libXt.so&#39;: No such file or directory</code></pre></li>
 <li><p>If the X11 libraries are not properly detected by <code>configure</code>, you can point them out by <code>--with-x</code>.</p></li>
 </ul>
-<h3 id="creating-and-using-sysroots-with-qemu-deboostrap">Creating And Using Sysroots With qemu-deboostrap</h3>
+<h3 id="cross-compiling-with-debian-sysroots">Cross compiling with Debian sysroots</h3>
 <p>Fortunately, you can create sysroots for foreign architectures with tools provided by your OS. On Debian/Ubuntu systems, one could use <code>qemu-deboostrap</code> to create the <em>target</em> system chroot, which would have the native libraries and headers specific to that <em>target</em> system. After that, we can use the cross-compiler on the <em>build</em> system, pointing into chroot to get the build dependencies right. This allows building for foreign architectures with native compilation speed.</p>
 <p>For example, cross-compiling to AArch64 from x86_64 could be done like this:</p>
 <ul>
-<li>Install cross-compiler on the <em>build</em> system:</li>
-</ul>
-<pre><code>apt install g++-aarch64-linux-gnu gcc-aarch64-linux-gnu</code></pre>
-<ul>
-<li>Create chroot on the <em>build</em> system, configuring it for <em>target</em> system:</li>
-</ul>
-<pre><code>sudo qemu-debootstrap --arch=arm64 --verbose \
-       --include=fakeroot,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype6-dev,libpng12-dev \
-       --resolve-deps jessie /chroots/arm64 http://httpredir.debian.org/debian/</code></pre>
-<ul>
-<li>Configure and build with newly created chroot as sysroot/toolchain-path:</li>
-</ul>
-<pre><code>CC=aarch64-linux-gnu-gcc CXX=aarch64-linux-gnu-g++ sh ./configure --openjdk-target=aarch64-linux-gnu --with-sysroot=/chroots/arm64/ --with-toolchain-path=/chroots/arm64/
+<li><p>Install cross-compiler on the <em>build</em> system:</p>
+<pre><code>apt install g++-aarch64-linux-gnu gcc-aarch64-linux-gnu</code></pre></li>
+<li><p>Create chroot on the <em>build</em> system, configuring it for <em>target</em> system:</p>
+<pre><code>sudo qemu-debootstrap \
+  --arch=arm64 \
+  --verbose \
+  --include=fakeroot,symlinks,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype6-dev,libpng-dev,libffi-dev \
+  --resolve-deps \
+  buster \
+  ~/sysroot-arm64 \
+  http://httpredir.debian.org/debian/</code></pre></li>
+<li><p>Make sure the symlinks inside the newly created chroot point to proper locations:</p>
+<pre><code>sudo chroot ~/sysroot-arm64 symlinks -cr .</code></pre></li>
+<li><p>Configure and build with newly created chroot as sysroot/toolchain-path:</p>
+<pre><code>sh ./configure \
+  --openjdk-target=aarch64-linux-gnu \
+  --with-sysroot=~/sysroot-arm64
 make images
-ls build/linux-aarch64-normal-server-release/</code></pre>
+ls build/linux-aarch64-server-release/</code></pre></li>
+</ul>
 <p>The build does not create new files in that chroot, so it can be reused for multiple builds without additional cleanup.</p>
+<p>The build system should automatically detect the toolchain paths and dependencies, but sometimes it might require a little nudge with:</p>
+<ul>
+<li><p>Native compilers: override <code>CC</code> or <code>CXX</code> for <code>./configure</code></p></li>
+<li><p>Freetype lib location: override <code>--with-freetype-lib</code>, for example <code>${sysroot}/usr/lib/${target}/</code></p></li>
+<li><p>Freetype includes location: override <code>--with-freetype-include</code> for example <code>${sysroot}/usr/include/freetype2/</code></p></li>
+<li><p>X11 libraries location: override <code>--x-libraries</code>, for example <code>${sysroot}/usr/lib/${target}/</code></p></li>
+</ul>
 <p>Architectures that are known to successfully cross-compile like this are:</p>
 <table>
 <thead>
 <tr class="header">
 <th style="text-align: left;">Target</th>
-<th style="text-align: left;"><code>CC</code></th>
-<th style="text-align: left;"><code>CXX</code></th>
-<th style="text-align: left;"><code>--arch=...</code></th>
+<th style="text-align: left;">Debian tree</th>
+<th style="text-align: left;">Debian arch</th>
 <th style="text-align: left;"><code>--openjdk-target=...</code></th>
+<th><code>--with-jvm-variants=...</code></th>
 </tr>
 </thead>
 <tbody>
 <tr class="odd">
 <td style="text-align: left;">x86</td>
-<td style="text-align: left;">default</td>
-<td style="text-align: left;">default</td>
+<td style="text-align: left;">buster</td>
 <td style="text-align: left;">i386</td>
 <td style="text-align: left;">i386-linux-gnu</td>
+<td>(all)</td>
 </tr>
 <tr class="even">
-<td style="text-align: left;">armhf</td>
-<td style="text-align: left;">gcc-arm-linux-gnueabihf</td>
-<td style="text-align: left;">g++-arm-linux-gnueabihf</td>
+<td style="text-align: left;">arm</td>
+<td style="text-align: left;">buster</td>
 <td style="text-align: left;">armhf</td>
 <td style="text-align: left;">arm-linux-gnueabihf</td>
+<td>(all)</td>
 </tr>
 <tr class="odd">
 <td style="text-align: left;">aarch64</td>
-<td style="text-align: left;">gcc-aarch64-linux-gnu</td>
-<td style="text-align: left;">g++-aarch64-linux-gnu</td>
+<td style="text-align: left;">buster</td>
 <td style="text-align: left;">arm64</td>
 <td style="text-align: left;">aarch64-linux-gnu</td>
+<td>(all)</td>
 </tr>
 <tr class="even">
-<td style="text-align: left;">ppc64el</td>
-<td style="text-align: left;">gcc-powerpc64le-linux-gnu</td>
-<td style="text-align: left;">g++-powerpc64le-linux-gnu</td>
+<td style="text-align: left;">ppc64le</td>
+<td style="text-align: left;">buster</td>
 <td style="text-align: left;">ppc64el</td>
 <td style="text-align: left;">powerpc64le-linux-gnu</td>
+<td>(all)</td>
 </tr>
 <tr class="odd">
 <td style="text-align: left;">s390x</td>
-<td style="text-align: left;">gcc-s390x-linux-gnu</td>
-<td style="text-align: left;">g++-s390x-linux-gnu</td>
+<td style="text-align: left;">buster</td>
 <td style="text-align: left;">s390x</td>
 <td style="text-align: left;">s390x-linux-gnu</td>
+<td>(all)</td>
+</tr>
+<tr class="even">
+<td style="text-align: left;">mipsle</td>
+<td style="text-align: left;">buster</td>
+<td style="text-align: left;">mipsel</td>
+<td style="text-align: left;">mipsel-linux-gnu</td>
+<td>zero</td>
+</tr>
+<tr class="odd">
+<td style="text-align: left;">mips64le</td>
+<td style="text-align: left;">buster</td>
+<td style="text-align: left;">mips64el</td>
+<td style="text-align: left;">mips64el-linux-gnueabi64</td>
+<td>zero</td>
+</tr>
+<tr class="even">
+<td style="text-align: left;">armel</td>
+<td style="text-align: left;">buster</td>
+<td style="text-align: left;">arm</td>
+<td style="text-align: left;">arm-linux-gnueabi</td>
+<td>zero</td>
+</tr>
+<tr class="odd">
+<td style="text-align: left;">ppc</td>
+<td style="text-align: left;">sid</td>
+<td style="text-align: left;">powerpc</td>
+<td style="text-align: left;">powerpc-linux-gnu</td>
+<td>zero</td>
+</tr>
+<tr class="even">
+<td style="text-align: left;">ppc64be</td>
+<td style="text-align: left;">sid</td>
+<td style="text-align: left;">ppc64</td>
+<td style="text-align: left;">powerpc64-linux-gnu</td>
+<td>(all)</td>
+</tr>
+<tr class="odd">
+<td style="text-align: left;">m68k</td>
+<td style="text-align: left;">sid</td>
+<td style="text-align: left;">m68k</td>
+<td style="text-align: left;">m68k-linux-gnu</td>
+<td>zero</td>
+</tr>
+<tr class="even">
+<td style="text-align: left;">alpha</td>
+<td style="text-align: left;">sid</td>
+<td style="text-align: left;">alpha</td>
+<td style="text-align: left;">alpha-linux-gnu</td>
+<td>zero</td>
+</tr>
+<tr class="odd">
+<td style="text-align: left;">sh4</td>
+<td style="text-align: left;">sid</td>
+<td style="text-align: left;">sh4</td>
+<td style="text-align: left;">sh4-linux-gnu</td>
+<td>zero</td>
 </tr>
 </tbody>
 </table>
-<p>Additional architectures might be supported by Debian/Ubuntu Ports.</p>
 <h3 id="building-for-armaarch64">Building for ARM/aarch64</h3>
 <p>A common cross-compilation target is the ARM CPU. When building for ARM, it is useful to set the ABI profile. A number of pre-defined ABI profiles are available using <code>--with-abi-profile</code>: arm-vfp-sflt, arm-vfp-hflt, arm-sflt, armv5-vfp-sflt, armv6-vfp-hflt. Note that soft-float ABIs are no longer properly supported by the JDK.</p>
+<h3 id="building-for-musl">Building for musl</h3>
+<p>Just like it's possible to cross-compile for a different CPU, it's possible to cross-compile for musl libc on a glibc-based <em>build</em> system. A devkit suitable for most target CPU architectures can be obtained from <a href="https://musl.cc">musl.cc</a>. After installing the required packages in the sysroot, configure the build with <code>--openjdk-target</code>:</p>
+<pre><code>sh ./configure --with-jvm-variants=server \
+--with-boot-jdk=$BOOT_JDK \
+--with-build-jdk=$BUILD_JDK \
+--openjdk-target=x86_64-unknown-linux-musl \
+--with-devkit=$DEVKIT \
+--with-sysroot=$SYSROOT</code></pre>
+<p>and run <code>make</code> normally.</p>
 <h3 id="verifying-the-build">Verifying the Build</h3>
 <p>The build will end up in a directory named like <code>build/linux-arm-normal-server-release</code>.</p>
 <p>Inside this build output directory, the <code>images/jdk</code> will contain the newly built JDK, for your <em>target</em> system.</p>
@@ -732,14 +820,14 @@ ls build/linux-aarch64-normal-server-release/</code></pre>
 
 === Output from failing command(s) repeated here ===
 * For target hotspot_variant-server_libjvm_objs_psMemoryPool.o:
-/localhome/hg/jdk9-sandbox/hotspot/src/share/vm/services/psMemoryPool.cpp:1:1: error: &#39;failhere&#39; does not name a type
+/localhome/git/jdk-sandbox/hotspot/src/share/vm/services/psMemoryPool.cpp:1:1: error: &#39;failhere&#39; does not name a type
    ... (rest of output omitted)
 
-* All command lines available in /localhome/hg/jdk9-sandbox/build/linux-x64/make-support/failure-logs.
+* All command lines available in /localhome/git/jdk-sandbox/build/linux-x64/make-support/failure-logs.
 === End of repeated output ===
 
 === Make failed targets repeated here ===
-lib/CompileJvm.gmk:207: recipe for target &#39;/localhome/hg/jdk9-sandbox/build/linux-x64/hotspot/variant-server/libjvm/objs/psMemoryPool.o&#39; failed
+lib/CompileJvm.gmk:207: recipe for target &#39;/localhome/git/jdk-sandbox/build/linux-x64/hotspot/variant-server/libjvm/objs/psMemoryPool.o&#39; failed
 make/Main.gmk:263: recipe for target &#39;hotspot-server-libs&#39; failed
 === End of repeated output ===
 
@@ -766,7 +854,7 @@ Hint: If caused by a warning, try configure --disable-warnings-as-errors.</code>
 <p>Here are a suggested list of things to try if you are having unexpected build problems. Each step requires more time than the one before, so try them in order. Most issues will be solved at step 1 or 2.</p>
 <ol type="1">
 <li><p>Make sure your repository is up-to-date</p>
-<p>Run <code>hg pull -u</code> to make sure you have the latest changes.</p></li>
+<p>Run <code>git pull origin master</code> to make sure you have the latest changes.</p></li>
 <li><p>Clean build results</p>
 <p>The simplest way to fix incremental rebuild issues is to run <code>make clean</code>. This will remove all build results, but not the configuration or any build system support artifacts. In most cases, this will solve build errors resulting from incremental build mismatches.</p></li>
 <li><p>Completely clean the build directory.</p>
@@ -775,8 +863,8 @@ Hint: If caused by a warning, try configure --disable-warnings-as-errors.</code>
 make dist-clean
 bash configure $(cat current-configuration)
 make</code></pre></li>
-<li><p>Re-clone the Mercurial repository</p>
-<p>Sometimes the Mercurial repository gets in a state that causes the product to be un-buildable. In such a case, the simplest solution is often the &quot;sledgehammer approach&quot;: delete the entire repository, and re-clone it. If you have local changes, save them first to a different location using <code>hg export</code>.</p></li>
+<li><p>Re-clone the Git repository</p>
+<p>Sometimes the Git repository gets in a state that causes the product to be un-buildable. In such a case, the simplest solution is often the &quot;sledgehammer approach&quot;: delete the entire repository, and re-clone it. If you have local changes, save them first to a different location using <code>git format-patch</code>.</p></li>
 </ol>
 <h3 id="specific-build-issues">Specific Build Issues</h3>
 <h4 id="clock-skew">Clock Skew</h4>
@@ -791,23 +879,12 @@ Clock skew detected. Your build may be incomplete.</code></pre>
 cannot create ... Permission denied
 spawn failed</code></pre>
 <p>This can be a sign of a Cygwin problem. See the information about solving problems in the <a href="#cygwin">Cygwin</a> section. Rebooting the computer might help temporarily.</p>
+<h4 id="spaces-in-path">Spaces in Path</h4>
+<p>On Windows, when configuring, <code>fixpath.sh</code> may report that some directory names have spaces. Usually, it assumes those directories have <a href="https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/fsutil-8dot3name">short paths</a>. You can run <code>fsutil file setshortname</code> in <code>cmd</code> on certain directories, such as <code>Microsoft Visual Studio</code> or <code>Windows Kits</code>, to assign arbitrary short paths so <code>configure</code> can access them.</p>
 <h3 id="getting-help">Getting Help</h3>
 <p>If none of the suggestions in this document helps you, or if you find what you believe is a bug in the build system, please contact the Build Group by sending a mail to <a href="mailto:build-dev@openjdk.java.net">build-dev@openjdk.java.net</a>. Please include the relevant parts of the configure and/or build log.</p>
 <p>If you need general help or advice about developing for the JDK, you can also contact the Adoption Group. See the section on <a href="#contributing-to-openjdk">Contributing to OpenJDK</a> for more information.</p>
 <h2 id="hints-and-suggestions-for-advanced-users">Hints and Suggestions for Advanced Users</h2>
-<h3 id="setting-up-a-repository-for-pushing-changes-defpath">Setting Up a Repository for Pushing Changes (defpath)</h3>
-<p>To help you prepare a proper push path for a Mercurial repository, there exists a useful tool known as <a href="http://openjdk.java.net/projects/code-tools/defpath">defpath</a>. It will help you setup a proper push path for pushing changes to the JDK.</p>
-<p>Install the extension by cloning <code>http://hg.openjdk.java.net/code-tools/defpath</code> and updating your <code>.hgrc</code> file. Here's one way to do this:</p>
-<pre><code>cd ~
-mkdir hg-ext
-cd hg-ext
-hg clone http://hg.openjdk.java.net/code-tools/defpath
-cat &lt;&lt; EOT &gt;&gt; ~/.hgrc
-[extensions]
-defpath=~/hg-ext/defpath/defpath.py
-EOT</code></pre>
-<p>You can now setup a proper push path using:</p>
-<pre><code>hg defpath -d -u &lt;your OpenJDK username&gt;</code></pre>
 <h3 id="bash-completion">Bash Completion</h3>
 <p>The <code>configure</code> and <code>make</code> commands tries to play nice with bash command-line completion (using <code>&lt;tab&gt;</code> or <code>&lt;tab&gt;&lt;tab&gt;</code>). To use this functionality, make sure you enable completion in your <code>~/.bashrc</code> (see instructions for bash in your operating system).</p>
 <p>Make completion will work out of the box, and will complete valid make targets. For instance, typing <code>make jdk-i&lt;tab&gt;</code> will complete to <code>make jdk-image</code>.</p>
@@ -831,7 +908,7 @@ sudo mv /tmp/configure /usr/local/bin</code></pre>
 <p>If you update the repository and part of the configure script has changed, the build system will force you to re-run <code>configure</code>.</p>
 <p>Most of the time, you will be fine by running <code>configure</code> again with the same arguments as the last time, which can easily be performed by <code>make reconfigure</code>. To simplify this, you can use the <code>CONF_CHECK</code> make control variable, either as <code>make CONF_CHECK=auto</code>, or by setting an environment variable. For instance, if you add <code>export CONF_CHECK=auto</code> to your <code>.bashrc</code> file, <code>make</code> will always run <code>reconfigure</code> automatically whenever the configure script has changed.</p>
 <p>You can also use <code>CONF_CHECK=ignore</code> to skip the check for a needed configure update. This might speed up the build, but comes at the risk of an incorrect build result. This is only recommended if you know what you're doing.</p>
-<p>From time to time, you will also need to modify the command line to <code>configure</code> due to changes. Use <code>make print-configure</code> to show the command line used for your current configuration.</p>
+<p>From time to time, you will also need to modify the command line to <code>configure</code> due to changes. Use <code>make print-configuration</code> to show the command line used for your current configuration.</p>
 <h3 id="using-fine-grained-make-targets">Using Fine-Grained Make Targets</h3>
 <p>The default behavior for make is to create consistent and correct output, at the expense of build speed, if necessary.</p>
 <p>If you are prepared to take some risk of an incorrect build, and know enough of the system to understand how things build and interact, you can speed up the build process considerably by instructing make to only build a portion of the product.</p>
@@ -860,14 +937,6 @@ sudo mv /tmp/configure /usr/local/bin</code></pre>
 <h4 id="rebuilding-part-of-java.base-jdk_filter">Rebuilding Part of java.base (JDK_FILTER)</h4>
 <p>If you are modifying files in <code>java.base</code>, which is the by far largest module in the JDK, then you need to rebuild all those files whenever a single file has changed. (This inefficiency will hopefully be addressed in JDK 10.)</p>
 <p>As a hack, you can use the make control variable <code>JDK_FILTER</code> to specify a pattern that will be used to limit the set of files being recompiled. For instance, <code>make java.base JDK_FILTER=javax/crypto</code> (or, to combine methods, <code>make java.base-java-only JDK_FILTER=javax/crypto</code>) will limit the compilation to files in the <code>javax.crypto</code> package.</p>
-<h3 id="learn-about-mercurial">Learn About Mercurial</h3>
-<p>To become an efficient JDK developer, it is recommended that you invest in learning Mercurial properly. Here are some links that can get you started:</p>
-<ul>
-<li><a href="http://www.mercurial-scm.org/wiki/GitConcepts">Mercurial for git users</a></li>
-<li><a href="http://www.mercurial-scm.org/wiki/Tutorial">The official Mercurial tutorial</a></li>
-<li><a href="http://hginit.com/">hg init</a></li>
-<li><a href="http://hgbook.red-bean.com/read/">Mercurial: The Definitive Guide</a></li>
-</ul>
 <h2 id="understanding-the-build-system">Understanding the Build System</h2>
 <p>This section will give you a more technical description on the details of the build system.</p>
 <h3 id="configurations">Configurations</h3>

doc/building.md

@@ -3,11 +3,11 @@
 ## TL;DR (Instructions for the Impatient)
 
 If you are eager to try out building the JDK, these simple steps works most of
-the time. They assume that you have installed Mercurial (and Cygwin if running
+the time. They assume that you have installed Git (and Cygwin if running
 on Windows) and cloned the top-level JDK repository that you want to build.
 
  1. [Get the complete source code](#getting-the-source-code): \
-    `hg clone http://hg.openjdk.java.net/jdk/jdk`
+    `git clone https://git.openjdk.java.net/jdk/`
 
  2. [Run configure](#running-configure): \
     `bash configure`
@@ -47,14 +47,14 @@ JDK.
 
 Make sure you are getting the correct version. As of JDK 10, the source is no
 longer split into separate repositories so you only need to clone one single
-repository. At the [OpenJDK Mercurial server](http://hg.openjdk.java.net/) you
+repository. At the [OpenJDK Git site](https://git.openjdk.java.net/) you
 can see a list of all available repositories. If you want to build an older version,
-e.g. JDK 8, it is recommended that you get the `jdk8u` forest, which contains
-incremental updates, instead of the `jdk8` forest, which was frozen at JDK 8 GA.
+e.g. JDK 11, it is recommended that you get the `jdk11u` repo, which contains
+incremental updates, instead of the `jdk11` repo, which was frozen at JDK 11 GA.
 
-If you are new to Mercurial, a good place to start is the [Mercurial Beginner's
-Guide](http://www.mercurial-scm.org/guide). The rest of this document assumes a
-working knowledge of Mercurial.
+If you are new to Git, a good place to start is the book [Pro
+Git](https://git-scm.com/book/en/v2). The rest of this document
+assumes a working knowledge of Git.
 
 ### Special Considerations
 
@@ -89,9 +89,21 @@ on where and how to check out the source code.
         directory. This is especially important if your user name contains
         spaces and/or mixed upper and lower case letters.
 
-      * Clone the JDK repository using the Cygwin command line `hg` client
-        as instructed in this document. That is, do *not* use another Mercurial
-        client such as TortoiseHg.
+      * You need to install a git client. You have two choices, Cygwin git or
+        Git for Windows. Unfortunately there are pros and cons with each choice.
+
+        * The Cygwin `git` client has no line ending issues and understands
+          Cygwin paths (which are used throughout the JDK build system).
+          However, it does not currently work well with the Skara CLI tooling.
+          Please see the [Skara wiki on Git clients](
+          https://wiki.openjdk.java.net/display/SKARA/Skara#Skara-Git) for
+          up-to-date information about the Skara git client support.
+
+        * The [Git for Windows](https://gitforwindows.org) client has issues
+          with line endings, and do not understand Cygwin paths. It does work
+          well with the Skara CLI tooling, however. To alleviate the line ending
+          problems, make sure you set `core.autocrlf` to `false` (this is asked
+          during installation).
 
     Failure to follow this procedure might result in hard-to-debug build
     problems.
@@ -173,7 +185,7 @@ likely be possible to support in a future version but that would require effort
 to implement.)
 
 Internally in the build system, all paths are represented as Unix-style paths,
-e.g. `/cygdrive/c/hg/jdk9/Makefile` rather than `C:\hg\jdk9\Makefile`. This
+e.g. `/cygdrive/c/git/jdk/Makefile` rather than `C:\git\jdk\Makefile`. This
 rule also applies to input to the build system, e.g. in arguments to
 `configure`. So, use `--with-msvcr-dll=/cygdrive/c/msvcr100.dll` rather than
 `--with-msvcr-dll=c:\msvcr100.dll`. For details on this conversion, see the section
@@ -273,6 +285,13 @@ For rpm-based distributions (Fedora, Red Hat, etc), try this:
 sudo yum groupinstall "Development Tools"
 ```
 
+For Alpine Linux, aside from basic tooling, install the GNU versions of some
+programs:
+
+```
+sudo apk add build-base bash grep zip
+```
+
 ### AIX
 
 Please consult the AIX section of the [Supported Build Platforms](
@@ -302,9 +321,9 @@ issues.
 
  Operating system   Toolchain version
  ------------------ -------------------------------------------------------
- Linux              gcc 9.2.0
+ Linux              gcc 10.2.0
  macOS              Apple Xcode 10.1 (using clang 10.0.0)
- Windows            Microsoft Visual Studio 2019 update 16.5.3
+ Windows            Microsoft Visual Studio 2019 update 16.7.2
 
 All compilers are expected to be able to compile to the C99 language standard,
 as some C99 features are used in the source code. Microsoft Visual Studio
@@ -316,14 +335,14 @@ features that it does support.
 The minimum accepted version of gcc is 5.0. Older versions will generate a warning
 by `configure` and are unlikely to work.
 
-The JDK is currently known to be able to compile with at least version 9.2 of
+The JDK is currently known to be able to compile with at least version 10.2 of
 gcc.
 
 In general, any version between these two should be usable.
 
 ### clang
 
-The minimum accepted version of clang is 3.2. Older versions will not be
+The minimum accepted version of clang is 3.5. Older versions will not be
 accepted by `configure`.
 
 To use clang instead of gcc on Linux, use `--with-toolchain-type=clang`.
@@ -355,20 +374,16 @@ available for this update.
 
 ### Microsoft Visual Studio
 
-The minimum accepted version of Visual Studio is 2010. Older versions will not
-be accepted by `configure`. The maximum accepted version of Visual Studio is
-2019. Versions older than 2017 are unlikely to continue working for long.
+The minimum accepted version of Visual Studio is 2017. Older versions will not
+be accepted by `configure` and will not work. The maximum accepted
+version of Visual Studio is 2019.
 
 If you have multiple versions of Visual Studio installed, `configure` will by
 default pick the latest. You can request a specific version to be used by
-setting `--with-toolchain-version`, e.g. `--with-toolchain-version=2015`.
+setting `--with-toolchain-version`, e.g. `--with-toolchain-version=2017`.
 
-If you get `LINK: fatal error LNK1123: failure during conversion to COFF: file
-invalid` when building using Visual Studio 2010, you have encountered
-[KB2757355](http://support.microsoft.com/kb/2757355), a bug triggered by a
-specific installation order. However, the solution suggested by the KB article
-does not always resolve the problem. See [this stackoverflow discussion](
-https://stackoverflow.com/questions/10888391) for other suggestions.
+If you have Visual Studio installed but `configure` fails to detect it, it may
+be because of [spaces in path](#spaces-in-path).
 
 ### IBM XL C/C++
 
@@ -438,6 +453,8 @@ rather than bundling the JDK's own copy.
     libfreetype6-dev`.
   * To install on an rpm-based Linux, try running `sudo yum install
     freetype-devel`.
+  * To install on Alpine Linux, try running `sudo apk add freetype-dev`.
+  * To install on macOS, try running `brew install freetype`.
 
 Use `--with-freetype-include=<path>` and `--with-freetype-lib=<path>`
 if `configure` does not automatically locate the platform FreeType files.
@@ -452,6 +469,7 @@ your operating system.
     libcups2-dev`.
   * To install on an rpm-based Linux, try running `sudo yum install
     cups-devel`.
+  * To install on Alpine Linux, try running `sudo apk add cups-dev`.
 
 Use `--with-cups=<path>` if `configure` does not properly locate your CUPS
 files.
@@ -465,6 +483,8 @@ Linux.
     libx11-dev libxext-dev libxrender-dev libxrandr-dev libxtst-dev libxt-dev`.
   * To install on an rpm-based Linux, try running `sudo yum install
     libXtst-devel libXt-devel libXrender-devel libXrandr-devel libXi-devel`.
+  * To install on Alpine Linux, try running `sudo apk add libx11-dev
+    libxext-dev libxrender-dev libxrandr-dev libxtst-dev libxt-dev`.
 
 Use `--with-x=<path>` if `configure` does not properly locate your X11 files.
 
@@ -477,6 +497,7 @@ required on Linux. At least version 0.9.1 of ALSA is required.
     libasound2-dev`.
   * To install on an rpm-based Linux, try running `sudo yum install
     alsa-lib-devel`.
+  * To install on Alpine Linux, try running `sudo apk add alsa-lib-dev`.
 
 Use `--with-alsa=<path>` if `configure` does not properly locate your ALSA
 files.
@@ -491,6 +512,7 @@ Hotspot.
     libffi-dev`.
   * To install on an rpm-based Linux, try running `sudo yum install
     libffi-devel`.
+  * To install on Alpine Linux, try running `sudo apk add libffi-dev`.
 
 Use `--with-libffi=<path>` if `configure` does not properly locate your libffi
 files.
@@ -506,6 +528,7 @@ platforms. At least version 2.69 is required.
     autoconf`.
   * To install on an rpm-based Linux, try running `sudo yum install
     autoconf`.
+  * To install on Alpine Linux, try running `sudo apk add autoconf`.
   * To install on macOS, try running `brew install autoconf`.
   * To install on Windows, try running `<path to Cygwin setup>/setup-x86_64 -q
     -P autoconf`.
@@ -634,7 +657,7 @@ features, use `bash configure --help=short` instead.)
 On Linux, BSD and AIX, it is possible to override where Java by default
 searches for runtime/JNI libraries. This can be useful in situations where
 there is a special shared directory for system JNI libraries. This setting
-can in turn be overriden at runtime by setting the `java.library.path` property.
+can in turn be overridden at runtime by setting the `java.library.path` property.
 
   * `--with-jni-libpath=<path>` - Use the specified path as a default
   when searching for runtime libraries.
@@ -700,7 +723,7 @@ hard to use properly. Therefore, `configure` will print a warning if this is
 detected.
 
 However, there are a few `configure` variables, known as *control variables*
-that are supposed to be overriden on the command line. These are variables that
+that are supposed to be overridden on the command line. These are variables that
 describe the location of tools needed by the build, like `MAKE` or `GREP`. If
 any such variable is specified, `configure` will use that value instead of
 trying to autodetect the tool. For instance, `bash configure
@@ -780,7 +803,7 @@ broken build. Unless you're well versed in the build system, this is hard to
 use properly. Therefore, `make` will print a warning if this is detected.
 
 However, there are a few `make` variables, known as *control variables* that
-are supposed to be overriden on the command line. These make up the "make time"
+are supposed to be overridden on the command line. These make up the "make time"
 configuration, as opposed to the "configure time" configuration.
 
 #### General Make Control Variables
@@ -1067,7 +1090,7 @@ Note that X11 is needed even if you only want to build a headless JDK.
   * If the X11 libraries are not properly detected by `configure`, you can
     point them out by `--with-x`.
 
-### Creating And Using Sysroots With qemu-deboostrap
+### Cross compiling with Debian sysroots
 
 Fortunately, you can create sysroots for foreign architectures with tools
 provided by your OS. On Debian/Ubuntu systems, one could use `qemu-deboostrap` to
@@ -1079,38 +1102,67 @@ for foreign architectures with native compilation speed.
 For example, cross-compiling to AArch64 from x86_64 could be done like this:
 
   * Install cross-compiler on the *build* system:
-```
-apt install g++-aarch64-linux-gnu gcc-aarch64-linux-gnu
-```
+    ```
+    apt install g++-aarch64-linux-gnu gcc-aarch64-linux-gnu
+    ```
 
   * Create chroot on the *build* system, configuring it for *target* system:
-```
-sudo qemu-debootstrap --arch=arm64 --verbose \
-       --include=fakeroot,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype6-dev,libpng12-dev \
-       --resolve-deps jessie /chroots/arm64 http://httpredir.debian.org/debian/
-```
+    ```
+    sudo qemu-debootstrap \
+      --arch=arm64 \
+      --verbose \
+      --include=fakeroot,symlinks,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype6-dev,libpng-dev,libffi-dev \
+      --resolve-deps \
+      buster \
+      ~/sysroot-arm64 \
+      http://httpredir.debian.org/debian/
+    ```
+
+  * Make sure the symlinks inside the newly created chroot point to proper locations:
+    ```
+    sudo chroot ~/sysroot-arm64 symlinks -cr .
+    ```
 
   * Configure and build with newly created chroot as sysroot/toolchain-path:
-```
-CC=aarch64-linux-gnu-gcc CXX=aarch64-linux-gnu-g++ sh ./configure --openjdk-target=aarch64-linux-gnu --with-sysroot=/chroots/arm64/ --with-toolchain-path=/chroots/arm64/
-make images
-ls build/linux-aarch64-normal-server-release/
-```
+    ```
+    sh ./configure \
+      --openjdk-target=aarch64-linux-gnu \
+      --with-sysroot=~/sysroot-arm64
+    make images
+    ls build/linux-aarch64-server-release/
+    ```
 
 The build does not create new files in that chroot, so it can be reused for multiple builds
 without additional cleanup.
 
+The build system should automatically detect the toolchain paths and dependencies, but sometimes
+it might require a little nudge with:
+
+  * Native compilers: override `CC` or `CXX` for `./configure`
+
+  * Freetype lib location: override `--with-freetype-lib`, for example `${sysroot}/usr/lib/${target}/`
+
+  * Freetype includes location: override `--with-freetype-include` for example `${sysroot}/usr/include/freetype2/`
+
+  * X11 libraries location: override `--x-libraries`, for example `${sysroot}/usr/lib/${target}/`
+
 Architectures that are known to successfully cross-compile like this are:
 
-  Target        `CC`                      `CXX`                       `--arch=...`  `--openjdk-target=...`
-  ------------  ------------------------- --------------------------- ------------- -----------------------
-  x86           default                   default                     i386          i386-linux-gnu
-  armhf         gcc-arm-linux-gnueabihf   g++-arm-linux-gnueabihf     armhf         arm-linux-gnueabihf
-  aarch64       gcc-aarch64-linux-gnu     g++-aarch64-linux-gnu       arm64         aarch64-linux-gnu
-  ppc64el       gcc-powerpc64le-linux-gnu g++-powerpc64le-linux-gnu   ppc64el       powerpc64le-linux-gnu
-  s390x         gcc-s390x-linux-gnu       g++-s390x-linux-gnu         s390x         s390x-linux-gnu
-
-Additional architectures might be supported by Debian/Ubuntu Ports.
+  Target        Debian tree  Debian arch   `--openjdk-target=...`   `--with-jvm-variants=...`
+  ------------  ------------ ------------- ------------------------ --------------
+  x86           buster       i386          i386-linux-gnu           (all)
+  arm           buster       armhf         arm-linux-gnueabihf      (all)
+  aarch64       buster       arm64         aarch64-linux-gnu        (all)
+  ppc64le       buster       ppc64el       powerpc64le-linux-gnu    (all)
+  s390x         buster       s390x         s390x-linux-gnu          (all)
+  mipsle        buster       mipsel        mipsel-linux-gnu         zero
+  mips64le      buster       mips64el      mips64el-linux-gnueabi64 zero
+  armel         buster       arm           arm-linux-gnueabi        zero
+  ppc           sid          powerpc       powerpc-linux-gnu        zero
+  ppc64be       sid          ppc64         powerpc64-linux-gnu      (all)
+  m68k          sid          m68k          m68k-linux-gnu           zero
+  alpha         sid          alpha         alpha-linux-gnu          zero
+  sh4           sid          sh4           sh4-linux-gnu            zero
 
 ### Building for ARM/aarch64
 
@@ -1120,6 +1172,25 @@ available using `--with-abi-profile`: arm-vfp-sflt, arm-vfp-hflt, arm-sflt,
 armv5-vfp-sflt, armv6-vfp-hflt. Note that soft-float ABIs are no longer
 properly supported by the JDK.
 
+### Building for musl
+
+Just like it's possible to cross-compile for a different CPU, it's possible to
+cross-compile for musl libc on a glibc-based *build* system.
+A devkit suitable for most target CPU architectures can be obtained from
+[musl.cc](https://musl.cc). After installing the required packages in the
+sysroot, configure the build with `--openjdk-target`:
+
+```
+sh ./configure --with-jvm-variants=server \
+--with-boot-jdk=$BOOT_JDK \
+--with-build-jdk=$BUILD_JDK \
+--openjdk-target=x86_64-unknown-linux-musl \
+--with-devkit=$DEVKIT \
+--with-sysroot=$SYSROOT
+```
+
+and run `make` normally.
+
 ### Verifying the Build
 
 The build will end up in a directory named like
@@ -1244,14 +1315,14 @@ ERROR: Build failed for target 'hotspot' in configuration 'linux-x64' (exit code
 
 === Output from failing command(s) repeated here ===
 * For target hotspot_variant-server_libjvm_objs_psMemoryPool.o:
-/localhome/hg/jdk9-sandbox/hotspot/src/share/vm/services/psMemoryPool.cpp:1:1: error: 'failhere' does not name a type
+/localhome/git/jdk-sandbox/hotspot/src/share/vm/services/psMemoryPool.cpp:1:1: error: 'failhere' does not name a type
    ... (rest of output omitted)
 
-* All command lines available in /localhome/hg/jdk9-sandbox/build/linux-x64/make-support/failure-logs.
+* All command lines available in /localhome/git/jdk-sandbox/build/linux-x64/make-support/failure-logs.
 === End of repeated output ===
 
 === Make failed targets repeated here ===
-lib/CompileJvm.gmk:207: recipe for target '/localhome/hg/jdk9-sandbox/build/linux-x64/hotspot/variant-server/libjvm/objs/psMemoryPool.o' failed
+lib/CompileJvm.gmk:207: recipe for target '/localhome/git/jdk-sandbox/build/linux-x64/hotspot/variant-server/libjvm/objs/psMemoryPool.o' failed
 make/Main.gmk:263: recipe for target 'hotspot-server-libs' failed
 === End of repeated output ===
 
@@ -1349,7 +1420,7 @@ order. Most issues will be solved at step 1 or 2.
 
  1. Make sure your repository is up-to-date
 
-    Run `hg pull -u` to make sure you have the latest changes.
+    Run `git pull origin master` to make sure you have the latest changes.
 
  2. Clean build results
 
@@ -1374,13 +1445,13 @@ order. Most issues will be solved at step 1 or 2.
     make
     ```
 
- 4. Re-clone the Mercurial repository
+ 4. Re-clone the Git repository
 
-    Sometimes the Mercurial repository gets in a state that causes the product
+    Sometimes the Git repository gets in a state that causes the product
     to be un-buildable. In such a case, the simplest solution is often the
     "sledgehammer approach": delete the entire repository, and re-clone it.
     If you have local changes, save them first to a different location using
-    `hg export`.
+    `git format-patch`.
 
 ### Specific Build Issues
 
@@ -1412,6 +1483,15 @@ This can be a sign of a Cygwin problem. See the information about solving
 problems in the [Cygwin](#cygwin) section. Rebooting the computer might help
 temporarily.
 
+#### Spaces in Path
+
+On Windows, when configuring, `fixpath.sh` may report that some directory
+names have spaces. Usually, it assumes those directories have
+[short paths](https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/fsutil-8dot3name).
+You can run `fsutil file setshortname` in `cmd` on certain directories, such as
+`Microsoft Visual Studio` or `Windows Kits`, to assign arbitrary short paths so
+`configure` can access them.
+
 ### Getting Help
 
 If none of the suggestions in this document helps you, or if you find what you
@@ -1425,33 +1505,6 @@ contact the Adoption Group. See the section on [Contributing to OpenJDK](
 
 ## Hints and Suggestions for Advanced Users
 
-### Setting Up a Repository for Pushing Changes (defpath)
-
-To help you prepare a proper push path for a Mercurial repository, there exists
-a useful tool known as [defpath](
-http://openjdk.java.net/projects/code-tools/defpath). It will help you setup a
-proper push path for pushing changes to the JDK.
-
-Install the extension by cloning
-`http://hg.openjdk.java.net/code-tools/defpath` and updating your `.hgrc` file.
-Here's one way to do this:
-
-```
-cd ~
-mkdir hg-ext
-cd hg-ext
-hg clone http://hg.openjdk.java.net/code-tools/defpath
-cat << EOT >> ~/.hgrc
-[extensions]
-defpath=~/hg-ext/defpath/defpath.py
-EOT
-```
-
-You can now setup a proper push path using:
-```
-hg defpath -d -u <your OpenJDK username>
-```
-
 ### Bash Completion
 
 The `configure` and `make` commands tries to play nice with bash command-line
@@ -1517,8 +1570,8 @@ update. This might speed up the build, but comes at the risk of an incorrect
 build result. This is only recommended if you know what you're doing.
 
 From time to time, you will also need to modify the command line to `configure`
-due to changes. Use `make print-configure` to show the command line used for
-your current configuration.
+due to changes. Use `make print-configuration` to show the command line used
+for your current configuration.
 
 ### Using Fine-Grained Make Targets
 
@@ -1592,16 +1645,6 @@ instance, `make java.base JDK_FILTER=javax/crypto` (or, to combine methods,
 `make java.base-java-only JDK_FILTER=javax/crypto`) will limit the compilation
 to files in the `javax.crypto` package.
 
-### Learn About Mercurial
-
-To become an efficient JDK developer, it is recommended that you invest in
-learning Mercurial properly. Here are some links that can get you started:
-
-  * [Mercurial for git users](http://www.mercurial-scm.org/wiki/GitConcepts)
-  * [The official Mercurial tutorial](http://www.mercurial-scm.org/wiki/Tutorial)
-  * [hg init](http://hginit.com/)
-  * [Mercurial: The Definitive Guide](http://hgbook.red-bean.com/read/)
-
 ## Understanding the Build System
 
 This section will give you a more technical description on the details of the

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+<h1 class="title">HotSpot Coding Style</h1>
+</header>
+<nav id="TOC">
+<ul>
+<li><a href="#introduction">Introduction</a><ul>
+<li><a href="#why-care-about-style">Why Care About Style?</a></li>
+<li><a href="#counterexamples-and-updates">Counterexamples and Updates</a></li>
+</ul></li>
+<li><a href="#structure-and-formatting">Structure and Formatting</a><ul>
+<li><a href="#factoring-and-class-design">Factoring and Class Design</a></li>
+<li><a href="#source-files">Source Files</a></li>
+<li><a href="#jtreg-tests">JTReg Tests</a></li>
+<li><a href="#naming">Naming</a></li>
+<li><a href="#commenting">Commenting</a></li>
+<li><a href="#macros">Macros</a></li>
+<li><a href="#whitespace">Whitespace</a></li>
+<li><a href="#miscellaneous">Miscellaneous</a></li>
+</ul></li>
+<li><a href="#use-of-c-features">Use of C++ Features</a><ul>
+<li><a href="#error-handling">Error Handling</a></li>
+<li><a href="#rtti-runtime-type-information">RTTI (Runtime Type Information)</a></li>
+<li><a href="#memory-allocation">Memory Allocation</a></li>
+<li><a href="#class-inheritance">Class Inheritance</a></li>
+<li><a href="#namespaces">Namespaces</a></li>
+<li><a href="#c-standard-library">C++ Standard Library</a></li>
+<li><a href="#type-deduction">Type Deduction</a></li>
+<li><a href="#expression-sfinae">Expression SFINAE</a></li>
+<li><a href="#enum">enum</a></li>
+<li><a href="#thread_local">thread_local</a></li>
+<li><a href="#nullptr">nullptr</a></li>
+<li><a href="#atomic">&lt;atomic&gt;</a></li>
+<li><a href="#uniform-initialization">Uniform Initialization</a></li>
+<li><a href="#additional-permitted-features">Additional Permitted Features</a></li>
+<li><a href="#excluded-features">Excluded Features</a></li>
+<li><a href="#undecided-features">Undecided Features</a></li>
+</ul></li>
+</ul>
+</nav>
+<h2 id="introduction">Introduction</h2>
+<p>This is a collection of rules, guidelines, and suggestions for writing HotSpot code. Following these will help new code fit in with existing HotSpot code, making it easier to read and maintain. Failure to follow these guidelines may lead to discussion during code reviews, if not outright rejection of a change.</p>
+<h3 id="why-care-about-style">Why Care About Style?</h3>
+<p>Some programmers seem to have lexers and even C preprocessors installed directly behind their eyeballs. The rest of us require code that is not only functionally correct but also easy to read. More than that, since there is no one style for easy-to-read code, and since a mashup of many styles is just as confusing as no style at all, it is important for coders to be conscious of the many implicit stylistic choices that historically have gone into the HotSpot code base.</p>
+<p>Some of these guidelines are driven by the cross-platform requirements for HotSpot. Shared code must work on a variety of platforms, and may encounter deficiencies in some. Using platform conditionalization in shared code is usually avoided, while shared code is strongly preferred to multiple platform-dependent implementations, so some language features may be recommended against.</p>
+<p>Some of the guidelines here are relatively arbitrary choices among equally plausible alternatives. The purpose of stating and enforcing these rules is largely to provide a consistent look to the code. That consistency makes the code more readable by avoiding non-functional distractions from the interesting functionality.</p>
+<p>When changing pre-existing code, it is reasonable to adjust it to match these conventions. Exception: If the pre-existing code clearly conforms locally to its own peculiar conventions, it is not worth reformatting the whole thing. Also consider separating changes that make extensive stylistic updates from those which make functional changes.</p>
+<h3 id="counterexamples-and-updates">Counterexamples and Updates</h3>
+<p>Many of the guidelines mentioned here have (sometimes widespread) counterexamples in the HotSpot code base. Finding a counterexample is not sufficient justification for new code to follow the counterexample as a precedent, since readers of your code will rightfully expect your code to follow the greater bulk of precedents documented here.</p>
+<p>Occasionally a guideline mentioned here may be just out of synch with the actual HotSpot code base. If you find that a guideline is consistently contradicted by a large number of counterexamples, please bring it up for discussion and possible change. The architectural rule, of course, is &quot;When in Rome do as the Romans&quot;. Sometimes in the suburbs of Rome the rules are a little different; these differences can be pointed out here.</p>
+<p>Proposed changes should be discussed on the <a href="mailto:hotspot-dev@openjdk.java.net">HotSpot Developers</a> mailing list, and approved by <a href="https://en.wikipedia.org/wiki/Rough_consensus">rough consensus</a> of the <a href="https://openjdk.java.net/census#hotspot">HotSpot Group</a> Members. The Group Lead determines whether consensus has been reached. Changes are likely to be cautious and incremental, since HotSpot coders have been using these guidelines for years.</p>
+<h2 id="structure-and-formatting">Structure and Formatting</h2>
+<h3 id="factoring-and-class-design">Factoring and Class Design</h3>
+<ul>
+<li><p>Group related code together, so readers can concentrate on one section of one file.</p></li>
+<li><p>Classes are the primary code structuring mechanism. Place related functionality in a class, or a set of related classes. Use of either namespaces or public non-member functions is rare in HotSpot code. Static non-member functions are not uncommon.</p></li>
+<li><p>If a class <code>FooBar</code> is going to be used in more than one place, put it a file named fooBar.hpp and fooBar.cpp. If the class is a sidekick to a more important class <code>BazBat</code>, it can go in bazBat.hpp.</p></li>
+<li><p>Put a member function <code>FooBar::bang</code> into the same file that defined <code>FooBar</code>, or its associated <em>.inline.hpp or </em>.cpp file.</p></li>
+<li><p>Use public accessor functions for member variables accessed outside the class.</p></li>
+<li><p>Assign names to constant literals and use the names instead.</p></li>
+<li><p>Keep functions small, a screenful at most. Split out chunks of logic into file-local classes or static functions if needed.</p></li>
+<li><p>Factor away nonessential complexity into local inline helper functions and helper classes.</p></li>
+<li><p>Think clearly about internal invariants that apply to each class, and document them in the form of asserts within member functions.</p></li>
+<li><p>Make simple, self-evident contracts for member functions. If you cannot communicate a simple contract, redesign the class.</p></li>
+<li><p>Implement classes as if expecting rough usage by clients. Check for incorrect usage of a class using <code>assert(...)</code>, <code>guarantee(...)</code>, <code>ShouldNotReachHere()</code> and comments wherever needed. Performance is almost never a reason to omit asserts.</p></li>
+<li><p>When possible, design as if for reusability. This forces a clear design of the class's externals, and clean hiding of its internals.</p></li>
+<li><p>Initialize all variables and data structures to a known state. If a class has a constructor, initialize it there.</p></li>
+<li><p>Do no optimization before its time. Prove the need to optimize.</p></li>
+<li><p>When you must defactor to optimize, preserve as much structure as possible. If you must hand-inline some name, label the local copy with the original name.</p></li>
+<li><p>If you need to use a hidden detail (e.g., a structure offset), name it (as a constant or function) in the class that owns it.</p></li>
+<li><p>Don't use the Copy and Paste keys to replicate more than a couple lines of code. Name what you must repeat.</p></li>
+<li><p>If a class needs a member function to change a user-visible attribute, the change should be done with a &quot;setter&quot; accessor matched to the simple &quot;getter&quot;.</p></li>
+</ul>
+<h3 id="source-files">Source Files</h3>
+<ul>
+<li><p>All source files must have a globally unique basename. The build system depends on this uniqueness.</p></li>
+<li><p>Do not put non-trivial function implementations in .hpp files. If the implementation depends on other .hpp files, put it in a .cpp or a .inline.hpp file.</p></li>
+<li><p>.inline.hpp files should only be included in .cpp or .inline.hpp files.</p></li>
+<li><p>All .cpp files include precompiled.hpp as the first include line.</p></li>
+<li><p>precompiled.hpp is just a build time optimization, so don't rely on it to resolve include problems.</p></li>
+<li><p>Keep the include lines alphabetically sorted.</p></li>
+<li><p>Put conditional inclusions (<code>#if ...</code>) at the end of the include list.</p></li>
+</ul>
+<h3 id="jtreg-tests">JTReg Tests</h3>
+<ul>
+<li><p>JTReg tests should have meaningful names.</p></li>
+<li><p>JTReg tests associated with specific bugs should be tagged with the <code>@bug</code> keyword in the test description.</p></li>
+<li><p>JTReg tests should be organized by component or feature under <code>test/</code>, in a directory hierarchy that generally follows that of the <code>src/</code> directory. There may be additional subdirectories to further categorize tests by feature. This structure makes it easy to run a collection of tests associated with a specific feature by specifying the associated directory as the source of the tests to run.</p>
+<ul>
+<li>Some (older) tests use the associated bug number in the directory name, the test name, or both. That naming style should no longer be used, with existing tests using that style being candidates for migration.</li>
+</ul></li>
+</ul>
+<h3 id="naming">Naming</h3>
+<ul>
+<li><p>The length of a name may be correlated to the size of its scope. In particular, short names (even single letter names) may be fine in a small scope, but are usually inappropriate for larger scopes.</p></li>
+<li><p>Prefer whole words rather than abbreviations, unless the abbreviation is more widely used than the long form in the code's domain.</p></li>
+<li><p>Choose names consistently. Do not introduce spurious variations. Abbreviate corresponding terms to a consistent length.</p></li>
+<li><p>Global names must be unique, to avoid <a href="https://en.cppreference.com/w/cpp/language/definition" title="One Definition Rule">One Definition Rule</a> (ODR) violations. A common prefixing scheme for related global names is often used. (This is instead of using namespaces, which are mostly avoided in HotSpot.)</p></li>
+<li><p>Don't give two names to the semantically same thing. But use different names for semantically different things, even if they are representationally the same. (So use meaningful <code>typedef</code> or template alias names where appropriate.)</p></li>
+<li><p>When choosing names, avoid categorical nouns like &quot;variable&quot;, &quot;field&quot;, &quot;parameter&quot;, &quot;value&quot;, and verbs like &quot;compute&quot;, &quot;get&quot;. (<code>storeValue(int param)</code> is bad.)</p></li>
+<li><p>Type names and global names should use mixed-case with the first letter of each word capitalized (<code>FooBar</code>).</p></li>
+<li><p>Embedded abbreviations in otherwise mixed-case names are usually capitalized entirely rather than being treated as a single word with only the initial letter capitalized, e.g. &quot;HTML&quot; rather than &quot;Html&quot;.</p></li>
+<li><p>Function and local variable names use lowercase with words separated by a single underscore (<code>foo_bar</code>).</p></li>
+<li><p>Class data member names have a leading underscore, and use lowercase with words separated by a single underscore (<code>_foo_bar</code>).</p></li>
+<li><p>Constant names may be upper-case or mixed-case, according to historical necessity. (Note: There are many examples of constants with lowercase names.)</p></li>
+<li><p>Constant names should follow an existing pattern, and must have a distinct appearance from other names in related APIs.</p></li>
+<li><p>Class and type names should be noun phrases. Consider an &quot;er&quot; suffix for a class that represents an action.</p></li>
+<li><p>Function names should be verb phrases that reflect changes of state known to a class's user, or else noun phrases if they cause no change of state visible to the class's user.</p></li>
+<li><p>Getter accessor names are noun phrases, with no &quot;<code>get_</code>&quot; noise word. Boolean getters can also begin with &quot;<code>is_</code>&quot; or &quot;<code>has_</code>&quot;. Member function for reading data members usually have the same name as the data member, exclusive of the leading underscore.</p></li>
+<li><p>Setter accessor names prepend &quot;<code>set_</code>&quot; to the getter name.</p></li>
+<li><p>Other member function names are verb phrases, as if commands to the receiver.</p></li>
+<li><p>Avoid leading underscores (as &quot;<code>_oop</code>&quot;) except in cases required above. (Names with leading underscores can cause portability problems.)</p></li>
+</ul>
+<h3 id="commenting">Commenting</h3>
+<ul>
+<li><p>Clearly comment subtle fixes.</p></li>
+<li><p>Clearly comment tricky classes and functions.</p></li>
+<li><p>If you have to choose between commenting code and writing wiki content, comment the code. Link from the wiki to the source file if it makes sense.</p></li>
+<li><p>As a general rule don't add bug numbers to comments (they would soon overwhelm the code). But if the bug report contains significant information that can't reasonably be added as a comment, then refer to the bug report.</p></li>
+<li><p>Personal names are discouraged in the source code, which is a team product.</p></li>
+</ul>
+<h3 id="macros">Macros</h3>
+<ul>
+<li><p>You can almost always use an inline function or class instead of a macro. Use a macro only when you really need it.</p></li>
+<li><p>Templates may be preferable to multi-line macros. (There may be subtle performance effects with templates on some platforms; revert to macros if absolutely necessary.)</p></li>
+<li><p><code>#ifdef</code>s should not be used to introduce platform-specific code into shared code (except for <code>_LP64</code>). They must be used to manage header files, in the pattern found at the top of every source file. They should be used mainly for major build features, including <code>PRODUCT</code>, <code>ASSERT</code>, <code>_LP64</code>, <code>INCLUDE_SERIALGC</code>, <code>COMPILER1</code>, etc.</p></li>
+<li><p>For build features such as <code>PRODUCT</code>, use <code>#ifdef PRODUCT</code> for multiple-line inclusions or exclusions.</p></li>
+<li><p>For short inclusions or exclusions based on build features, use macros like <code>PRODUCT_ONLY</code> and <code>NOT_PRODUCT</code>. But avoid using them with multiple-line arguments, since debuggers do not handle that well.</p></li>
+<li><p>Use <code>CATCH</code>, <code>THROW</code>, etc. for HotSpot-specific exception processing.</p></li>
+</ul>
+<h3 id="whitespace">Whitespace</h3>
+<ul>
+<li><p>In general, don't change whitespace unless it improves readability or consistency. Gratuitous whitespace changes will make integrations and backports more difficult.</p></li>
+<li><p>Use One-True-Brace-Style. The opening brace for a function or class is normally at the end of the line; it is sometimes moved to the beginning of the next line for emphasis. Substatements are enclosed in braces, even if there is only a single statement. Extremely simple one-line statements may drop braces around a substatement.</p></li>
+<li><p>Indentation levels are two columns.</p></li>
+<li><p>There is no hard line length limit. That said, bear in mind that excessively long lines can cause difficulties. Some people like to have multiple side-by-side windows in their editors, and long lines may force them to choose among unpleasant options. They can use wide windows, reducing the number that can fit across the screen, and wasting a lot of screen real estate because most lines are not that long. Alternatively, they can have more windows across the screen, with long lines wrapping (or worse, requiring scrolling to see in their entirety), which is harder to read. Similar issues exist for side-by-side code reviews.</p></li>
+<li><p>Tabs are not allowed in code. Set your editor accordingly.<br> (Emacs: <code>(setq-default indent-tabs-mode nil)</code>.)</p></li>
+<li><p>Use good taste to break lines and align corresponding tokens on adjacent lines.</p></li>
+<li><p>Use spaces around operators, especially comparisons and assignments. (Relaxable for boolean expressions and high-precedence operators in classic math-style formulas.)</p></li>
+<li><p>Put spaces on both sides of control flow keywords <code>if</code>, <code>else</code>, <code>for</code>, <code>switch</code>, etc. Don't add spaces around the associated <em>control</em> expressions. Examples:</p>
+<pre><code>while (test_foo(args...)) {   // Yes
+while(test_foo(args...)) {    // No, missing space after while
+while ( test_foo(args...) ) { // No, excess spaces around control</code></pre></li>
+<li><p>Use extra parentheses in expressions whenever operator precedence seems doubtful. Always use parentheses in shift/mask expressions (<code>&lt;&lt;</code>, <code>&amp;</code>, <code>|</code>). Don't add whitespace immediately inside parentheses.</p></li>
+<li><p>Use more spaces and blank lines between larger constructs, such as classes or function definitions.</p></li>
+<li><p>If the surrounding code has any sort of vertical organization, adjust new lines horizontally to be consistent with that organization. (E.g., trailing backslashes on long macro definitions often align.)</p></li>
+</ul>
+<h3 id="miscellaneous">Miscellaneous</h3>
+<ul>
+<li><p>Use the <a href="https://en.cppreference.com/w/cpp/language/raii" title="Resource Acquisition Is Initialization">Resource Acquisition Is Initialization</a> (RAII) design pattern to manage bracketed critical sections. See class <code>ResourceMark</code> for an example.</p></li>
+<li>Avoid implicit conversions to <code>bool</code>.
+<ul>
+<li>Use <code>bool</code> for boolean values.</li>
+<li>Do not use ints or pointers as (implicit) booleans with <code>&amp;&amp;</code>, <code>||</code>, <code>if</code>, <code>while</code>. Instead, compare explicitly, i.e. <code>if (x != 0)</code> or <code>if (ptr != nullptr)</code>, etc.</li>
+<li>Do not use declarations in <em>condition</em> forms, i.e. don't use <code>if (T v = value) { ... }</code>.</li>
+</ul></li>
+<li><p>Use functions from globalDefinitions.hpp and related files when performing bitwise operations on integers. Do not code directly as C operators, unless they are extremely simple. (Examples: <code>align_up</code>, <code>is_power_of_2</code>, <code>exact_log2</code>.)</p></li>
+<li><p>Use arrays with abstractions supporting range checks.</p></li>
+<li><p>Always enumerate all cases in a switch statement or provide a default case. It is ok to have an empty default with comment.</p></li>
+</ul>
+<h2 id="use-of-c-features">Use of C++ Features</h2>
+<p>HotSpot was originally written in a subset of the C++98/03 language. More recently, support for C++14 is provided, though again, HotSpot only uses a subset. (Backports to JDK versions lacking support for more recent Standards must of course stick with the original C++98/03 subset.)</p>
+<p>This section describes that subset. Features from the C++98/03 language may be used unless explicitly excluded here. Features from C++11 and C++14 may be explicitly permitted or explicitly excluded, and discussed accordingly here. There is a third category, undecided features, about which HotSpot developers have not yet reached a consensus, or perhaps have not discussed at all. Use of these features is also excluded.</p>
+<p>(The use of some features may not be immediately obvious and may slip in anyway, since the compiler will accept them. The code review process is the main defense against this.)</p>
+<p>Some features are discussed in their own subsection, typically to provide more extensive discussion or rationale for limitations. Features that don't have their own subsection are listed in omnibus feature sections for permitted, excluded, and undecided features.</p>
+<p>Lists of new features for C++11 and C++14, along with links to their descriptions, can be found in the online documentation for some of the compilers and libraries. The C++14 Standard is the definitive description.</p>
+<ul>
+<li><a href="https://gcc.gnu.org/projects/cxx-status.html">C++ Standards Support in GCC</a></li>
+<li><a href="https://clang.llvm.org/cxx_status.html">C++ Support in Clang</a></li>
+<li><a href="https://docs.microsoft.com/en-us/cpp/visual-cpp-language-conformance">Visual C++ Language Conformance</a></li>
+<li><a href="https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html">libstdc++ Status</a></li>
+<li><a href="https://libcxx.llvm.org/cxx1y_status.html">libc++ Status</a></li>
+</ul>
+<p>As a rule of thumb, permitting features which simplify writing code and, especially, reading code, is encouraged.</p>
+<p>Similar discussions for some other projects:</p>
+<ul>
+<li><p><a href="https://google.github.io/styleguide/cppguide.html">Google C++ Style Guide</a> — Currently (2020) targeting C++17.</p></li>
+<li><p><a href="https://chromium-cpp.appspot.com">C++11 and C++14 use in Chromium</a> — Categorizes features as allowed, banned, or to be discussed.</p></li>
+<li><p><a href="https://llvm.org/docs/CodingStandards.html">llvm Coding Standards</a> — Currently (2020) targeting C++14.</p></li>
+<li><p><a href="https://firefox-source-docs.mozilla.org/code-quality/coding-style/using_cxx_in_firefox_code.html">Using C++ in Mozilla code</a> — C++17 support is required for recent versions (2020).</p></li>
+</ul>
+<h3 id="error-handling">Error Handling</h3>
+<p>Do not use exceptions. Exceptions are disabled by the build configuration for some platforms.</p>
+<p>Rationale: There is significant concern over the performance cost of exceptions and their usage model and implications for maintainable code. That's not just a matter of history that has been fixed; there remain questions and problems even today (2019). See, for example, <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0709r0.pdf">Zero cost deterministic exceptions</a>. Because of this, HotSpot has always used a build configuration that disables exceptions where that is available. As a result, HotSpot code uses error handling mechanisms such as two-phase construction, factory functions, returning error codes, and immediate termination. Even if the cost of exceptions were not a concern, the existing body of code was not written with exception safety in mind. Making HotSpot exception safe would be a very large undertaking.</p>
+<p>In addition to the usual alternatives to exceptions, HotSpot provides its own exception mechanism. This is based on a set of macros defined in utilities/exceptions.hpp.</p>
+<h3 id="rtti-runtime-type-information">RTTI (Runtime Type Information)</h3>
+<p>Do not use <a href="https://en.wikipedia.org/wiki/Run-time_type_information" title="Runtime Type Information">Runtime Type Information</a> (RTTI). <a href="https://en.wikipedia.org/wiki/Run-time_type_information" title="Runtime Type Information">RTTI</a> is disabled by the build configuration for some platforms. Among other things, this means <code>dynamic_cast</code> cannot be used.</p>
+<p>Rationale: Other than to implement exceptions (which HotSpot doesn't use), most potential uses of <a href="https://en.wikipedia.org/wiki/Run-time_type_information" title="Runtime Type Information">RTTI</a> are better done via virtual functions. Some of the remainder can be replaced by bespoke mechanisms. The cost of the additional runtime data structures needed to support <a href="https://en.wikipedia.org/wiki/Run-time_type_information" title="Runtime Type Information">RTTI</a> are deemed not worthwhile, given the alternatives.</p>
+<h3 id="memory-allocation">Memory Allocation</h3>
+<p>Do not use the standard global allocation and deallocation functions (operator new and related functions). Use of these functions by HotSpot code is disabled for some platforms.</p>
+<p>Rationale: HotSpot often uses &quot;resource&quot; or &quot;arena&quot; allocation. Even where heap allocation is used, the standard global functions are avoided in favor of wrappers around malloc and free that support the VM's Native Memory Tracking (NMT) feature.</p>
+<p>Native memory allocation failures are often treated as non-recoverable. The place where &quot;out of memory&quot; is (first) detected may be an innocent bystander, unrelated to the actual culprit.</p>
+<h3 id="class-inheritance">Class Inheritance</h3>
+<p>Use public single inheritance.</p>
+<p>Prefer composition rather than non-public inheritance.</p>
+<p>Restrict inheritance to the &quot;is-a&quot; case; use composition rather than non-is-a related inheritance.</p>
+<p>Avoid multiple inheritance. Never use virtual inheritance.</p>
+<h3 id="namespaces">Namespaces</h3>
+<p>Avoid using namespaces. HotSpot code normally uses &quot;all static&quot; classes rather than namespaces for grouping. An &quot;all static&quot; class is not instantiable, has only static members, and is normally derived (possibly indirectly) from the helper class <code>AllStatic</code>.</p>
+<p>Benefits of using such classes include:</p>
+<ul>
+<li><p>Provides access control for members, which is unavailable with namespaces.</p></li>
+<li><p>Avoids <a href="https://en.cppreference.com/w/cpp/language/adl" title="Argument Dependent Lookup">Argument Dependent Lookup</a> (ADL).</p></li>
+<li><p>Closed for additional members. Namespaces allow names to be added in multiple contexts, making it harder to see the complete API.</p></li>
+</ul>
+<p>Namespaces should be used only in cases where one of those &quot;benefits&quot; is actually a hindrance.</p>
+<p>In particular, don't use anonymous namespaces. They seem like they should be useful, and indeed have some real benefits for naming and generated code size on some platforms. Unfortunately, debuggers don't seem to like them at all.</p>
+<p><a href="https://groups.google.com/forum/#!topic/mozilla.dev.platform/KsaG3lEEaRM" class="uri">https://groups.google.com/forum/#!topic/mozilla.dev.platform/KsaG3lEEaRM</a><br> Suggests Visual Studio debugger might not be able to refer to anonymous namespace symbols, so can't set breakpoints in them. Though the discussion seems to go back and forth on that.</p>
+<p><a href="https://firefox-source-docs.mozilla.org/code-quality/coding-style/coding_style_cpp.html" class="uri">https://firefox-source-docs.mozilla.org/code-quality/coding-style/coding_style_cpp.html</a><br> Search for &quot;Anonymous namespaces&quot; Suggests preferring &quot;static&quot; to anonymous namespaces where applicable, because of poor debugger support for anonymous namespaces.</p>
+<p><a href="https://sourceware.org/bugzilla/show_bug.cgi?id=16874" class="uri">https://sourceware.org/bugzilla/show_bug.cgi?id=16874</a><br> Bug for similar gdb problems.</p>
+<h3 id="c-standard-library">C++ Standard Library</h3>
+<p>Avoid using the C++ Standard Library.</p>
+<p>Historically, HotSpot has mostly avoided use of the Standard Library.</p>
+<p>(It used to be impossible to use most of it in shared code, because the build configuration for Solaris with Solaris Studio made all but a couple of pieces inaccessible. Support for header-only parts was added in mid-2017. Support for Solaris was removed in 2020.)</p>
+<p>Some reasons for this include</p>
+<ul>
+<li><p>Exceptions. Perhaps the largest core issue with adopting the use of Standard Library facilities is exceptions. HotSpot does not use exceptions and, for platforms which allow doing so, builds with them turned off. Many Standard Library facilities implicitly or explicitly use exceptions.</p></li>
+<li><p><code>assert</code>. An issue that is quickly encountered is the <code>assert</code> macro name collision (<a href="https://bugs.openjdk.java.net/browse/JDK-8007770">JDK-8007770</a>). Some mechanism for addressing this would be needed before much of the Standard Library could be used. (Not all Standard Library implementations use assert in header files, but some do.)</p></li>
+<li><p>Memory allocation. HotSpot requires explicit control over where allocations occur. The C++98/03 <code>std::allocator</code> class is too limited to support our usage. (Changes in more recent Standards may remove this limitation.)</p></li>
+<li><p>Implementation vagaries. Bugs, or simply different implementation choices, can lead to different behaviors among the various Standard Libraries we need to deal with.</p></li>
+<li><p>Inconsistent naming conventions. HotSpot and the C++ Standard use different naming conventions. The coexistence of those different conventions might appear jarring and reduce readability.</p></li>
+</ul>
+<p>There are a few exceptions to this rule.</p>
+<ul>
+<li><code>#include &lt;new&gt;</code> to use placement <code>new</code>, <code>std::nothrow</code>, and <code>std::nothrow_t</code>.</li>
+<li><code>#include &lt;limits&gt;</code> to use <code>std::numeric_limits</code>.</li>
+<li><code>#include &lt;type_traits&gt;</code>.</li>
+<li><code>#include &lt;cstddef&gt;</code> to use <code>std::nullptr_t</code>.</li>
+</ul>
+<p>TODO: Rather than directly #including (permitted) Standard Library headers, use a convention of #including wrapper headers (in some location like hotspot/shared/stdcpp). This provides a single place for dealing with issues we might have for any given header, esp. platform-specific issues.</p>
+<h3 id="type-deduction">Type Deduction</h3>
+<p>Use type deduction only if it makes the code clearer or safer. Do not use it merely to avoid the inconvenience of writing an explicit type, unless that type is itself difficult to write. An example of the latter is a function template return type that depends on template parameters in a non-trivial way.</p>
+<p>There are several contexts where types are deduced.</p>
+<ul>
+<li><p>Function argument deduction. This is always permitted, and indeed encouraged. It is nearly always better to allow the type of a function template argument to be deduced rather than explicitly specified.</p></li>
+<li><p><code>auto</code> variable declarations (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf">n1984</a>)<br> For local variables, this can be used to make the code clearer by eliminating type information that is obvious or irrelevant. Excessive use can make code much harder to understand.</p></li>
+<li><p>Function return type deduction (<a href="https://isocpp.org/files/papers/N3638.html">n3638</a>)<br> Only use if the function body has a very small number of <code>return</code> statements, and generally relatively little other code.</p></li>
+<li><p>Generic lambdas. Lambdas are not (yet) permitted.</p></li>
+<li><p>Lambda init captures. Lambdas are not (yet) permitted.</p></li>
+</ul>
+<h3 id="expression-sfinae">Expression SFINAE</h3>
+<p><a href="https://en.cppreference.com/w/cpp/language/sfinae" title="Substitution Failure Is Not An Error">Substitution Failure Is Not An Error</a> (SFINAE) is a template metaprogramming technique that makes use of template parameter substitution failures to make compile-time decisions.</p>
+<p>C++11 relaxed the rules for what constitutes a hard-error when attempting to substitute template parameters with template arguments, making most deduction errors be substitution errors; see (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2634.html">n2634</a>). This makes <a href="https://en.cppreference.com/w/cpp/language/sfinae" title="Substitution Failure Is Not An Error">SFINAE</a> more powerful and easier to use. However, the implementation complexity for this change is significant, and this seems to be a place where obscure corner-case bugs in various compilers can be found. So while this feature can (and indeed should) be used (and would be difficult to avoid), caution should be used when pushing to extremes.</p>
+<p>Here are a few closely related example bugs:<br> <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95468" class="uri">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95468</a><br> <a href="https://developercommunity.visualstudio.com/content/problem/396562/sizeof-deduced-type-is-sometimes-not-a-constant-ex.html" class="uri">https://developercommunity.visualstudio.com/content/problem/396562/sizeof-deduced-type-is-sometimes-not-a-constant-ex.html</a></p>
+<h3 id="enum">enum</h3>
+<p>Where appropriate, <em>scoped-enums</em> should be used. (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2347.pdf">n2347</a>)</p>
+<p>Use of <em>unscoped-enums</em> is permitted, though ordinary constants may be preferable when the automatic initializer feature isn't used.</p>
+<p>The underlying type (the <em>enum-base</em>) of an unscoped enum type should always be specified explicitly. When unspecified, the underlying type is dependent on the range of the enumerator values and the platform.</p>
+<p>The underlying type of a <em>scoped-enum</em> should also be specified explicitly if conversions may be applied to values of that type.</p>
+<p>Due to bugs in certain (very old) compilers, there is widespread use of enums and avoidance of in-class initialization of static integral constant members. Compilers having such bugs are no longer supported. Except where an enum is semantically appropriate, new code should use integral constants.</p>
+<h3 id="thread_local">thread_local</h3>
+<p>Do not use <code>thread_local</code> (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm">n2659</a>); instead, use the HotSpot macro <code>THREAD_LOCAL</code>. The initializer must be a constant expression.</p>
+<p>As was discussed in the review for <a href="https://mail.openjdk.java.net/pipermail/hotspot-dev/2019-September/039487.html">JDK-8230877</a>, <code>thread_local</code> allows dynamic initialization and destruction semantics. However, that support requires a run-time penalty for references to non-function-local <code>thread_local</code> variables defined in a different translation unit, even if they don't need dynamic initialization. Dynamic initialization and destruction of namespace-scoped thread local variables also has the same ordering problems as for ordinary namespace-scoped variables.</p>
+<h3 id="nullptr">nullptr</h3>
+<p>Prefer <code>nullptr</code> (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf">n2431</a>) to <code>NULL</code>. Don't use (constexpr or literal) 0 for pointers.</p>
+<p>For historical reasons there are widespread uses of both <code>NULL</code> and of integer 0 as a pointer value.</p>
+<h3 id="atomic">&lt;atomic&gt;</h3>
+<p>Do not use facilities provided by the <code>&lt;atomic&gt;</code> header (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html">n2427</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2752.htm">n2752</a>); instead, use the HotSpot <code>Atomic</code> class and related facilities.</p>
+<p>Atomic operations in HotSpot code must have semantics which are consistent with those provided by the JDK's compilers for Java. There are platform-specific implementation choices that a C++ compiler might make or change that are outside the scope of the C++ Standard, and might differ from what the Java compilers implement.</p>
+<p>In addition, HotSpot <code>Atomic</code> has a concept of &quot;conservative&quot; memory ordering, which may differ from (may be stronger than) sequentially consistent. There are algorithms in HotSpot that are believed to rely on that ordering.</p>
+<h3 id="uniform-initialization">Uniform Initialization</h3>
+<p>The use of <em>uniform initialization</em> (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2672.htm">n2672</a>), also known as <em>brace initialization</em>, is permitted.</p>
+<p>Some relevant sections from cppreference.com:</p>
+<ul>
+<li><a href="https://en.cppreference.com/w/cpp/language/initialization">initialization</a></li>
+<li><a href="https://en.cppreference.com/w/cpp/language/value_initialization">value initialization</a></li>
+<li><a href="https://en.cppreference.com/w/cpp/language/direct_initialization">direct initialization</a></li>
+<li><a href="https://en.cppreference.com/w/cpp/language/list_initialization">list initialization</a></li>
+<li><a href="https://en.cppreference.com/w/cpp/language/aggregate_initialization">aggregate initialization</a></li>
+</ul>
+<p>Although related, the use of <code>std::initializer_list</code> remains forbidden, as part of the avoidance of the C++ Standard Library in HotSpot code.</p>
+<h3 id="additional-permitted-features">Additional Permitted Features</h3>
+<ul>
+<li><p><code>constexpr</code> (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf">n2235</a>) (<a href="https://isocpp.org/files/papers/N3652.html">n3652</a>)</p></li>
+<li><p>Sized deallocation (<a href="https://isocpp.org/files/papers/n3778.html">n3778</a>)</p></li>
+<li><p>Variadic templates (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2242.pdf">n2242</a>) (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf">n2555</a>)</p></li>
+<li><p>Static assertions (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html">n1720</a>)</p></li>
+<li><p><code>decltype</code> (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf">n2343</a>) (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf">n3276</a>)</p></li>
+<li><p>Right angle brackets (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html">n1757</a>)</p></li>
+<li><p>Default template arguments for function templates (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#226">CWG D226</a>)</p></li>
+<li><p>Template aliases (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf">n2258</a>)</p></li>
+<li><p>Delegating constructors (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf">n1986</a>)</p></li>
+<li><p>Explicit conversion operators (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">n2437</a>)</p></li>
+<li><p>Standard Layout Types (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm">n2342</a>)</p></li>
+<li><p>Defaulted and deleted functions (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">n2346</a>)</p></li>
+<li><p>Dynamic initialization and destruction with concurrency (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm">n2660</a>)</p></li>
+<li><p><code>final</code> virtual specifiers for classes and virtual functions (<a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">n2928</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">n3206</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">n3272</a>)</p></li>
+<li><p><code>override</code> virtual specifiers for virtual functions (<a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">n2928</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">n3206</a>), (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">n3272</a>)</p></li>
+<li><p>Local and unnamed types as template parameters (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">n2657</a>)</p></li>
+<li><p>Range-based <code>for</code> loops (<a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html">n2930</a>) (<a href="https://en.cppreference.com/w/cpp/language/range-for">range-for</a>)</p></li>
+</ul>
+<h3 id="excluded-features">Excluded Features</h3>
+<ul>
+<li>New string and character literals
+<ul>
+<li>New character types (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2249.html">n2249</a>)</li>
+<li>Unicode string literals (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">n2442</a>)</li>
+<li>Raw string literals (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">n2442</a>)</li>
+<li>Universal character name literals (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html">n2170</a>)</li>
+</ul>
+<p>HotSpot doesn't need any of the new character and string literal types.</p></li>
+<li><p>User-defined literals (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2765.pdf">n2765</a>) — User-defined literals should not be added casually, but only through a proposal to add a specific UDL.</p></li>
+<li><p>Inline namespaces (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2535.htm">n2535</a>) — HotSpot makes very limited use of namespaces.</p></li>
+<li><p><code>using namespace</code> directives. In particular, don't use <code>using namespace std;</code> to avoid needing to qualify Standard Library names.</p></li>
+<li><p>Propagating exceptions (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html">n2179</a>) — HotSpot does not permit the use of exceptions, so this feature isn't useful.</p></li>
+<li><p>Avoid namespace-scoped variables with non-constexpr initialization. In particular, avoid variables with types requiring non-trivial initialization or destruction. Initialization order problems can be difficult to deal with and lead to surprises, as can destruction ordering. HotSpot doesn't generally try to cleanup on exit, and running destructors at exit can also lead to problems.</p></li>
+<li><p><code>[[deprecated]]</code> attribute (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3760.html">n3760</a>) — Not relevant in HotSpot code.</p></li>
+<li><p>Avoid most operator overloading, preferring named functions. When operator overloading is used, ensure the semantics conform to the normal expected behavior of the operation.</p></li>
+<li><p>Avoid most implicit conversion constructors and (implicit or explicit) conversion operators. (Note that conversion to <code>bool</code> isn't needed in HotSpot code because of the &quot;no implicit boolean&quot; guideline.)</p></li>
+<li><p>Avoid covariant return types.</p></li>
+<li><p>Avoid <code>goto</code> statements.</p></li>
+</ul>
+<h3 id="undecided-features">Undecided Features</h3>
+<p>This list is incomplete; it serves to explicitly call out some features that have not yet been discussed.</p>
+<ul>
+<li><p>Trailing return type syntax for functions (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2541.htm">n2541</a>)</p></li>
+<li><p>Variable templates (<a href="https://isocpp.org/files/papers/N3651.pdf">n3651</a>)</p></li>
+<li><p>Member initializers and aggregates (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html">n3653</a>)</p></li>
+<li><p><code>[[noreturn]]</code> attribute (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">n2761</a>)</p></li>
+<li><p>Rvalue references and move semantics</p></li>
+<li><p>Lambdas</p></li>
+</ul>
+</body>
+</html>

doc/hotspot-style.md

@@ -0,0 +1,851 @@
+% HotSpot Coding Style
+
+## Introduction
+
+This is a collection of rules, guidelines, and suggestions for writing
+HotSpot code.  Following these will help new code fit in with existing
+HotSpot code, making it easier to read and maintain.  Failure to
+follow these guidelines may lead to discussion during code reviews, if
+not outright rejection of a change.
+
+### Why Care About Style?
+
+Some programmers seem to have lexers and even C preprocessors
+installed directly behind their eyeballs. The rest of us require code
+that is not only functionally correct but also easy to read. More than
+that, since there is no one style for easy-to-read code, and since a
+mashup of many styles is just as confusing as no style at all, it is
+important for coders to be conscious of the many implicit stylistic
+choices that historically have gone into the HotSpot code base.
+
+Some of these guidelines are driven by the cross-platform requirements
+for HotSpot.  Shared code must work on a variety of platforms, and may
+encounter deficiencies in some.  Using platform conditionalization in
+shared code is usually avoided, while shared code is strongly
+preferred to multiple platform-dependent implementations, so some
+language features may be recommended against.
+
+Some of the guidelines here are relatively arbitrary choices among
+equally plausible alternatives.  The purpose of stating and enforcing
+these rules is largely to provide a consistent look to the code.  That
+consistency makes the code more readable by avoiding non-functional
+distractions from the interesting functionality.
+
+When changing pre-existing code, it is reasonable to adjust it to
+match these conventions. Exception: If the pre-existing code clearly
+conforms locally to its own peculiar conventions, it is not worth
+reformatting the whole thing.  Also consider separating changes that
+make extensive stylistic updates from those which make functional
+changes.
+
+### Counterexamples and Updates
+
+Many of the guidelines mentioned here have (sometimes widespread)
+counterexamples in the HotSpot code base. Finding a counterexample is
+not sufficient justification for new code to follow the counterexample
+as a precedent, since readers of your code will rightfully expect your
+code to follow the greater bulk of precedents documented here.
+
+Occasionally a guideline mentioned here may be just out of synch with
+the actual HotSpot code base. If you find that a guideline is
+consistently contradicted by a large number of counterexamples, please
+bring it up for discussion and possible change. The architectural
+rule, of course, is "When in Rome do as the Romans". Sometimes in the
+suburbs of Rome the rules are a little different; these differences
+can be pointed out here.
+
+Proposed changes should be discussed on the
+[HotSpot Developers](mailto:hotspot-dev@openjdk.java.net) mailing
+list, and approved by
+[rough consensus](https://en.wikipedia.org/wiki/Rough_consensus) of
+the [HotSpot Group](https://openjdk.java.net/census#hotspot) Members.
+The Group Lead determines whether consensus has been reached.
+Changes are likely to be cautious and incremental, since HotSpot
+coders have been using these guidelines for years.
+
+## Structure and Formatting
+
+### Factoring and Class Design
+
+* Group related code together, so readers can concentrate on one
+section of one file.
+
+* Classes are the primary code structuring mechanism.  Place related
+functionality in a class, or a set of related classes.  Use of either
+namespaces or public non-member functions is rare in HotSpot code.
+Static non-member functions are not uncommon.
+
+* If a class `FooBar` is going to be used in more than one place, put it
+a file named fooBar.hpp and fooBar.cpp. If the class is a sidekick
+to a more important class `BazBat`, it can go in bazBat.hpp.
+
+* Put a member function `FooBar::bang` into the same file that defined
+`FooBar`, or its associated *.inline.hpp or *.cpp file.
+
+* Use public accessor functions for member variables accessed
+outside the class.
+
+* Assign names to constant literals and use the names instead.
+
+* Keep functions small, a screenful at most.  Split out chunks of
+logic into file-local classes or static functions if needed.
+
+* Factor away nonessential complexity into local inline helper
+functions and helper classes.
+
+* Think clearly about internal invariants that apply to each class,
+and document them in the form of asserts within member functions.
+
+* Make simple, self-evident contracts for member functions.  If you cannot
+communicate a simple contract, redesign the class.
+
+* Implement classes as if expecting rough usage by clients. Check for
+incorrect usage of a class using `assert(...)`, `guarantee(...)`,
+`ShouldNotReachHere()` and comments wherever needed.  Performance is
+almost never a reason to omit asserts.
+
+* When possible, design as if for reusability.  This forces a clear
+design of the class's externals, and clean hiding of its internals.
+
+* Initialize all variables and data structures to a known state. If a
+class has a constructor, initialize it there.
+
+* Do no optimization before its time. Prove the need to optimize.
+
+* When you must defactor to optimize, preserve as much structure as
+possible. If you must hand-inline some name, label the local copy with
+the original name.
+
+* If you need to use a hidden detail (e.g., a structure offset), name
+it (as a constant or function) in the class that owns it.
+
+* Don't use the Copy and Paste keys to replicate more than a couple
+lines of code.  Name what you must repeat.
+
+* If a class needs a member function to change a user-visible attribute, the
+change should be done with a "setter" accessor matched to the simple
+"getter".
+
+### Source Files
+
+* All source files must have a globally unique basename.  The build
+system depends on this uniqueness.
+
+* Do not put non-trivial function implementations in .hpp files. If
+the implementation depends on other .hpp files, put it in a .cpp or
+a .inline.hpp file.
+
+* .inline.hpp files should only be included in .cpp or .inline.hpp
+files.
+
+* All .cpp files include precompiled.hpp as the first include line.
+
+* precompiled.hpp is just a build time optimization, so don't rely on
+it to resolve include problems.
+
+* Keep the include lines alphabetically sorted.
+
+* Put conditional inclusions (`#if ...`) at the end of the include list.
+
+### JTReg Tests
+
+* JTReg tests should have meaningful names.
+
+* JTReg tests associated with specific bugs should be tagged with the
+`@bug` keyword in the test description.
+
+* JTReg tests should be organized by component or feature under
+`test/`, in a directory hierarchy that generally follows that of the
+`src/` directory. There may be additional subdirectories to further
+categorize tests by feature. This structure makes it easy to run a
+collection of tests associated with a specific feature by specifying
+the associated directory as the source of the tests to run.
+
+    * Some (older) tests use the associated bug number in the directory
+    name, the test name, or both.  That naming style should no longer be
+    used, with existing tests using that style being candidates for migration.
+
+### Naming
+
+* The length of a name may be correlated to the size of its scope.  In
+particular, short names (even single letter names) may be fine in a
+small scope, but are usually inappropriate for larger scopes.
+
+* Prefer whole words rather than abbreviations, unless the
+abbreviation is more widely used than the long form in the code's
+domain.
+
+* Choose names consistently. Do not introduce spurious
+variations. Abbreviate corresponding terms to a consistent length.
+
+* Global names must be unique, to avoid [One Definition Rule][ODR] (ODR)
+violations.  A common prefixing scheme for related global names is
+often used.  (This is instead of using namespaces, which are mostly
+avoided in HotSpot.)
+
+* Don't give two names to the semantically same thing.  But use
+different names for semantically different things, even if they are
+representationally the same.  (So use meaningful `typedef` or template
+alias names where appropriate.)
+
+* When choosing names, avoid categorical nouns like "variable",
+"field", "parameter", "value", and verbs like "compute", "get".
+(`storeValue(int param)` is bad.)
+
+* Type names and global names should use mixed-case with the first
+letter of each word capitalized (`FooBar`).
+
+* Embedded abbreviations in
+otherwise mixed-case names are usually capitalized entirely rather
+than being treated as a single word with only the initial letter
+capitalized, e.g. "HTML" rather than "Html".
+
+* Function and local variable names use lowercase with words separated
+by a single underscore (`foo_bar`).
+
+* Class data member names have a leading underscore, and use lowercase
+with words separated by a single underscore (`_foo_bar`).
+
+* Constant names may be upper-case or mixed-case, according to
+historical necessity.  (Note: There are many examples of constants
+with lowercase names.)
+
+* Constant names should follow an existing pattern, and must have a
+distinct appearance from other names in related APIs.
+
+* Class and type names should be noun phrases. Consider an "er" suffix
+for a class that represents an action.
+
+* Function names should be verb phrases that reflect changes of state
+known to a class's user, or else noun phrases if they cause no change
+of state visible to the class's user.
+
+* Getter accessor names are noun phrases, with no "`get_`" noise
+word. Boolean getters can also begin with "`is_`" or "`has_`".  Member
+function for reading data members usually have the same name as the
+data member, exclusive of the leading underscore.
+
+* Setter accessor names prepend "`set_`" to the getter name.
+
+* Other member function names are verb phrases, as if commands to the receiver.
+
+* Avoid leading underscores (as "`_oop`") except in cases required
+above. (Names with leading underscores can cause portability
+problems.)
+
+### Commenting
+
+* Clearly comment subtle fixes.
+
+* Clearly comment tricky classes and functions.
+
+* If you have to choose between commenting code and writing wiki
+content, comment the code. Link from the wiki to the source file if
+it makes sense.
+
+* As a general rule don't add bug numbers to comments (they would soon
+overwhelm the code). But if the bug report contains significant
+information that can't reasonably be added as a comment, then refer to
+the bug report.
+
+* Personal names are discouraged in the source code, which is a team
+product.
+
+### Macros
+
+* You can almost always use an inline function or class instead of a
+macro. Use a macro only when you really need it.
+
+* Templates may be preferable to multi-line macros. (There may be
+subtle performance effects with templates on some platforms; revert
+to macros if absolutely necessary.)
+
+* `#ifdef`s should not be used to introduce platform-specific code
+into shared code (except for `_LP64`). They must be used to manage
+header files, in the pattern found at the top of every source
+file. They should be used mainly for major build features, including
+`PRODUCT`, `ASSERT`, `_LP64`, `INCLUDE_SERIALGC`, `COMPILER1`, etc.
+
+* For build features such as `PRODUCT`, use `#ifdef PRODUCT` for
+multiple-line inclusions or exclusions.
+
+* For short inclusions or exclusions based on build features, use
+macros like `PRODUCT_ONLY` and `NOT_PRODUCT`. But avoid using them
+with multiple-line arguments, since debuggers do not handle that
+well.
+
+* Use `CATCH`, `THROW`, etc. for HotSpot-specific exception processing.
+
+### Whitespace
+
+* In general, don't change whitespace unless it improves readability
+or consistency.  Gratuitous whitespace changes will make integrations
+and backports more difficult.
+
+* Use One-True-Brace-Style. The opening brace for a function or class
+is normally at the end of the line; it is sometimes moved to the
+beginning of the next line for emphasis.  Substatements are enclosed
+in braces, even if there is only a single statement.  Extremely simple
+one-line statements may drop braces around a substatement.
+
+* Indentation levels are two columns.
+
+* There is no hard line length limit.  That said, bear in mind that
+excessively long lines can cause difficulties.  Some people like to
+have multiple side-by-side windows in their editors, and long lines
+may force them to choose among unpleasant options. They can use wide
+windows, reducing the number that can fit across the screen, and
+wasting a lot of screen real estate because most lines are not that
+long.  Alternatively, they can have more windows across the screen,
+with long lines wrapping (or worse, requiring scrolling to see in
+their entirety), which is harder to read.  Similar issues exist for
+side-by-side code reviews.
+
+* Tabs are not allowed in code. Set your editor accordingly.<br>
+(Emacs: `(setq-default indent-tabs-mode nil)`.)
+
+* Use good taste to break lines and align corresponding tokens on
+adjacent lines.
+
+* Use spaces around operators, especially comparisons and
+assignments. (Relaxable for boolean expressions and high-precedence
+operators in classic math-style formulas.)
+
+* Put spaces on both sides of control flow keywords `if`, `else`,
+`for`, `switch`, etc.  Don't add spaces around the associated
+_control_ expressions.  Examples:
+
+    ```
+    while (test_foo(args...)) {   // Yes
+    while(test_foo(args...)) {    // No, missing space after while
+    while ( test_foo(args...) ) { // No, excess spaces around control
+    ```
+
+* Use extra parentheses in expressions whenever operator precedence
+seems doubtful. Always use parentheses in shift/mask expressions
+(`<<`, `&`, `|`).  Don't add whitespace immediately inside
+parentheses.
+
+* Use more spaces and blank lines between larger constructs, such as
+classes or function definitions.
+
+* If the surrounding code has any sort of vertical organization,
+adjust new lines horizontally to be consistent with that
+organization. (E.g., trailing backslashes on long macro definitions
+often align.)
+
+### Miscellaneous
+
+* Use the [Resource Acquisition Is Initialization][RAII] (RAII)
+design pattern to manage bracketed critical
+sections. See class `ResourceMark` for an example.
+
+* Avoid implicit conversions to `bool`.
+    * Use `bool` for boolean values.
+    * Do not use ints or pointers as (implicit) booleans with `&&`, `||`,
+      `if`, `while`. Instead, compare explicitly, i.e. `if (x != 0)` or
+      `if (ptr != nullptr)`, etc.
+    * Do not use declarations in _condition_ forms, i.e. don't use
+      `if (T v = value) { ... }`.
+
+* Use functions from globalDefinitions.hpp and related files when
+performing bitwise
+operations on integers. Do not code directly as C operators, unless
+they are extremely simple. (Examples: `align_up`, `is_power_of_2`,
+`exact_log2`.)
+
+* Use arrays with abstractions supporting range checks.
+
+* Always enumerate all cases in a switch statement or provide a default
+case. It is ok to have an empty default with comment.
+
+
+## Use of C++ Features
+
+HotSpot was originally written in a subset of the C++98/03 language.
+More recently, support for C++14 is provided, though again,
+HotSpot only uses a subset.  (Backports to JDK versions lacking
+support for more recent Standards must of course stick with the
+original C++98/03 subset.)
+
+This section describes that subset.  Features from the C++98/03
+language may be used unless explicitly excluded here.  Features from
+C++11 and C++14 may be explicitly permitted or explicitly excluded,
+and discussed accordingly here.  There is a third category, undecided
+features, about which HotSpot developers have not yet reached a
+consensus, or perhaps have not discussed at all.  Use of these
+features is also excluded.
+
+(The use of some features may not be immediately obvious and may slip
+in anyway, since the compiler will accept them.  The code review
+process is the main defense against this.)
+
+Some features are discussed in their own subsection, typically to provide
+more extensive discussion or rationale for limitations.  Features that
+don't have their own subsection are listed in omnibus feature sections
+for permitted, excluded, and undecided features.
+
+Lists of new features for C++11 and C++14, along with links to their
+descriptions, can be found in the online documentation for some of the
+compilers and libraries.  The C++14 Standard is the definitive
+description.
+
+* [C++ Standards Support in GCC](https://gcc.gnu.org/projects/cxx-status.html)
+* [C++ Support in Clang](https://clang.llvm.org/cxx_status.html)
+* [Visual C++ Language Conformance](https://docs.microsoft.com/en-us/cpp/visual-cpp-language-conformance)
+* [libstdc++ Status](https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html)
+* [libc++ Status](https://libcxx.llvm.org/cxx1y_status.html)
+
+As a rule of thumb, permitting features which simplify writing code
+and, especially, reading code, is encouraged.
+
+Similar discussions for some other projects:
+
+* [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html) &mdash;
+Currently (2020) targeting C++17.
+
+* [C++11 and C++14 use in Chromium](https://chromium-cpp.appspot.com) &mdash;
+Categorizes features as allowed, banned, or to be discussed.
+
+* [llvm Coding Standards](https://llvm.org/docs/CodingStandards.html) &mdash;
+Currently (2020) targeting C++14.
+
+* [Using C++ in Mozilla code](https://firefox-source-docs.mozilla.org/code-quality/coding-style/using_cxx_in_firefox_code.html) &mdash;
+C++17 support is required for recent versions (2020).
+
+### Error Handling
+
+Do not use exceptions. Exceptions are disabled by the build configuration
+for some platforms.
+
+Rationale: There is significant concern over the performance cost of
+exceptions and their usage model and implications for maintainable code.
+That's not just a matter of history that has been fixed; there remain
+questions and problems even today (2019). See, for example, [Zero cost
+deterministic
+exceptions](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0709r0.pdf).
+Because of this, HotSpot has always used a build configuration that disables
+exceptions where that is available. As a result, HotSpot code uses error
+handling mechanisms such as two-phase construction, factory functions,
+returning error codes, and immediate termination. Even if the cost of
+exceptions were not a concern, the existing body of code was not written with
+exception safety in mind. Making HotSpot exception safe would be a very large
+undertaking.
+
+In addition to the usual alternatives to exceptions, HotSpot provides its
+own exception mechanism. This is based on a set of macros defined in
+utilities/exceptions.hpp.
+
+### RTTI (Runtime Type Information)
+
+Do not use [Runtime Type Information][RTTI] (RTTI).
+[RTTI][] is disabled by the build configuration for some
+platforms.  Among other things, this means `dynamic_cast` cannot be used.
+
+Rationale: Other than to implement exceptions (which HotSpot doesn't use),
+most potential uses of [RTTI][] are better done via virtual functions.  Some of
+the remainder can be replaced by bespoke mechanisms.  The cost of the
+additional runtime data structures needed to support [RTTI][] are deemed not
+worthwhile, given the alternatives.
+
+### Memory Allocation
+
+Do not use the standard global allocation and deallocation functions
+(operator new and related functions).  Use of these functions by HotSpot
+code is disabled for some platforms.
+
+Rationale: HotSpot often uses "resource" or "arena" allocation.  Even
+where heap allocation is used, the standard global functions are
+avoided in favor of wrappers around malloc and free that support the
+VM's Native Memory Tracking (NMT) feature.
+
+Native memory allocation failures are often treated as non-recoverable.
+The place where "out of memory" is (first) detected may be an innocent
+bystander, unrelated to the actual culprit.
+
+### Class Inheritance
+
+Use public single inheritance.
+
+Prefer composition rather than non-public inheritance.
+
+Restrict inheritance to the "is-a" case; use composition rather than
+non-is-a related inheritance.
+
+Avoid multiple inheritance.  Never use virtual inheritance.
+
+### Namespaces
+
+Avoid using namespaces.  HotSpot code normally uses "all static"
+classes rather than namespaces for grouping.  An "all static" class is
+not instantiable, has only static members, and is normally derived
+(possibly indirectly) from the helper class `AllStatic`.
+
+Benefits of using such classes include:
+
+* Provides access control for members, which is unavailable with
+namespaces.
+
+* Avoids [Argument Dependent Lookup][ADL] (ADL).
+
+* Closed for additional members.  Namespaces allow names to be added in
+multiple contexts, making it harder to see the complete API.
+
+Namespaces should be used only in cases where one of those "benefits"
+is actually a hindrance.
+
+In particular, don't use anonymous namespaces.  They seem like they should
+be useful, and indeed have some real benefits for naming and generated code
+size on some platforms.  Unfortunately, debuggers don't seem to like them at
+all.
+
+<https://groups.google.com/forum/#!topic/mozilla.dev.platform/KsaG3lEEaRM><br>
+Suggests Visual Studio debugger might not be able to refer to
+anonymous namespace symbols, so can't set breakpoints in them.
+Though the discussion seems to go back and forth on that.
+
+<https://firefox-source-docs.mozilla.org/code-quality/coding-style/coding_style_cpp.html><br>
+Search for "Anonymous namespaces"
+Suggests preferring "static" to anonymous namespaces where applicable,
+because of poor debugger support for anonymous namespaces.
+
+<https://sourceware.org/bugzilla/show_bug.cgi?id=16874><br>
+Bug for similar gdb problems.
+
+### C++ Standard Library
+
+Avoid using the C++ Standard Library.
+
+Historically, HotSpot has mostly avoided use of the Standard
+Library.
+
+(It used to be impossible to use most of it in shared code,
+because the build configuration for Solaris with Solaris Studio made
+all but a couple of pieces inaccessible.  Support for header-only
+parts was added in mid-2017.  Support for Solaris was removed
+in 2020.)
+
+Some reasons for this include
+
+* Exceptions. Perhaps the largest core issue with adopting the use of
+Standard Library facilities is exceptions. HotSpot does not use
+exceptions and, for platforms which allow doing so, builds with them
+turned off.  Many Standard Library facilities implicitly or explicitly
+use exceptions.
+
+* `assert`.  An issue that is quickly encountered is the `assert` macro name
+collision ([JDK-8007770](https://bugs.openjdk.java.net/browse/JDK-8007770)).
+Some mechanism for addressing this would be needed before much of the
+Standard Library could be used.  (Not all Standard Library implementations
+use assert in header files, but some do.)
+
+* Memory allocation. HotSpot requires explicit control over where
+allocations occur. The C++98/03 `std::allocator` class is too limited
+to support our usage.  (Changes in more recent Standards may remove
+this limitation.)
+
+* Implementation vagaries. Bugs, or simply different implementation choices,
+can lead to different behaviors among the various Standard Libraries we need
+to deal with.
+
+* Inconsistent naming conventions. HotSpot and the C++ Standard use
+different naming conventions. The coexistence of those different conventions
+might appear jarring and reduce readability.
+
+There are a few exceptions to this rule.
+
+* `#include <new>` to use placement `new`, `std::nothrow`, and `std::nothrow_t`.
+* `#include <limits>` to use `std::numeric_limits`.
+* `#include <type_traits>`.
+* `#include <cstddef>` to use `std::nullptr_t`.
+
+TODO: Rather than directly \#including (permitted) Standard Library
+headers, use a convention of \#including wrapper headers (in some
+location like hotspot/shared/stdcpp).  This provides a single place
+for dealing with issues we might have for any given header, esp.
+platform-specific issues.
+
+### Type Deduction
+
+Use type deduction only if it makes the code clearer or safer.  Do not
+use it merely to avoid the inconvenience of writing an explicit type,
+unless that type is itself difficult to write.  An example of the
+latter is a function template return type that depends on template
+parameters in a non-trivial way.
+
+There are several contexts where types are deduced.
+
+* Function argument deduction.  This is always permitted, and indeed
+encouraged.  It is nearly always better to allow the type of a
+function template argument to be deduced rather than explicitly
+specified.
+
+* `auto` variable declarations
+([n1984](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf))<br>
+For local variables, this can be used to make the code clearer by
+eliminating type information that is obvious or irrelevant.  Excessive
+use can make code much harder to understand.
+
+* Function return type deduction
+([n3638](https://isocpp.org/files/papers/N3638.html))<br>
+Only use if the function body has a very small number of `return`
+statements, and generally relatively little other code.
+
+* Generic lambdas.  Lambdas are not (yet) permitted.
+
+* Lambda init captures.  Lambdas are not (yet) permitted.
+
+### Expression SFINAE
+
+[Substitution Failure Is Not An Error][SFINAE] (SFINAE)
+is a template metaprogramming technique that makes use of
+template parameter substitution failures to make compile-time decisions.
+
+C++11 relaxed the rules for what constitutes a hard-error when
+attempting to substitute template parameters with template arguments,
+making most deduction errors be substitution errors; see
+([n2634](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2634.html)).
+This makes [SFINAE][] more powerful and easier to use.  However, the
+implementation complexity for this change is significant, and this
+seems to be a place where obscure corner-case bugs in various
+compilers can be found.  So while this feature can (and indeed should)
+be used (and would be difficult to avoid), caution should be used when
+pushing to extremes.
+
+Here are a few closely related example bugs:<br>
+<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95468><br>
+<https://developercommunity.visualstudio.com/content/problem/396562/sizeof-deduced-type-is-sometimes-not-a-constant-ex.html>
+
+### enum
+
+Where appropriate, _scoped-enums_ should be used.
+([n2347](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2347.pdf)) 
+
+Use of _unscoped-enums_ is permitted, though ordinary constants may be
+preferable when the automatic initializer feature isn't used.
+
+The underlying type (the _enum-base_) of an unscoped enum type should
+always be specified explicitly.  When unspecified, the underlying type
+is dependent on the range of the enumerator values and the platform.
+
+The underlying type of a _scoped-enum_ should also be specified
+explicitly if conversions may be applied to values of that type.
+
+Due to bugs in certain (very old) compilers, there is widespread use
+of enums and avoidance of in-class initialization of static integral
+constant members.  Compilers having such bugs are no longer supported.
+Except where an enum is semantically appropriate, new code should use
+integral constants.
+
+### thread_local
+
+Do not use `thread_local`
+([n2659](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm));
+instead, use the HotSpot macro `THREAD_LOCAL`.  The initializer must
+be a constant expression.
+
+As was discussed in the review for
+[JDK-8230877](https://mail.openjdk.java.net/pipermail/hotspot-dev/2019-September/039487.html),
+`thread_local` allows dynamic initialization and destruction
+semantics.  However, that support requires a run-time penalty for
+references to non-function-local `thread_local` variables defined in a
+different translation unit, even if they don't need dynamic
+initialization.  Dynamic initialization and destruction of
+namespace-scoped thread local variables also has the same ordering
+problems as for ordinary namespace-scoped variables.
+
+### nullptr
+
+Prefer `nullptr`
+([n2431](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf))
+to `NULL`.  Don't use (constexpr or literal) 0 for pointers. 
+
+For historical reasons there are widespread uses of both `NULL` and of
+integer 0 as a pointer value.
+
+### &lt;atomic&gt;
+
+Do not use facilities provided by the `<atomic>` header
+([n2427](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html)),
+([n2752](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2752.htm));
+instead, use the HotSpot `Atomic` class and related facilities.
+
+Atomic operations in HotSpot code must have semantics which are
+consistent with those provided by the JDK's compilers for Java.  There
+are platform-specific implementation choices that a C++ compiler might
+make or change that are outside the scope of the C++ Standard, and
+might differ from what the Java compilers implement.
+
+In addition, HotSpot `Atomic` has a concept of "conservative" memory
+ordering, which may differ from (may be stronger than) sequentially
+consistent.  There are algorithms in HotSpot that are believed to rely
+on that ordering.
+
+### Uniform Initialization
+
+The use of _uniform initialization_
+([n2672](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2672.htm)),
+also known as _brace initialization_, is permitted.
+
+Some relevant sections from cppreference.com:
+
+* [initialization](https://en.cppreference.com/w/cpp/language/initialization)
+* [value initialization](https://en.cppreference.com/w/cpp/language/value_initialization)
+* [direct initialization](https://en.cppreference.com/w/cpp/language/direct_initialization)
+* [list initialization](https://en.cppreference.com/w/cpp/language/list_initialization)
+* [aggregate initialization](https://en.cppreference.com/w/cpp/language/aggregate_initialization)
+
+Although related, the use of `std::initializer_list` remains forbidden, as
+part of the avoidance of the C++ Standard Library in HotSpot code.
+
+### Additional Permitted Features
+
+* `constexpr`
+([n2235](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf)) 
+([n3652](https://isocpp.org/files/papers/N3652.html))
+
+* Sized deallocation
+([n3778](https://isocpp.org/files/papers/n3778.html))
+
+* Variadic templates
+([n2242](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2242.pdf))
+([n2555](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf))
+
+* Static assertions
+([n1720](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html))
+
+* `decltype`
+([n2343](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf))
+([n3276](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf))
+
+* Right angle brackets
+([n1757](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html))
+
+* Default template arguments for function templates
+([CWG D226](http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#226))
+
+* Template aliases
+([n2258](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf))
+
+* Delegating constructors
+([n1986](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf))
+
+* Explicit conversion operators
+([n2437](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf))
+
+* Standard Layout Types
+([n2342](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm))
+
+* Defaulted and deleted functions
+([n2346](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm))
+
+* Dynamic initialization and destruction with concurrency
+([n2660](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm))
+
+* `final` virtual specifiers for classes and virtual functions
+([n2928](http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm)),
+([n3206](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm)),
+([n3272](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm))
+
+* `override` virtual specifiers for virtual functions
+([n2928](http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm)),
+([n3206](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm)),
+([n3272](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm))
+
+* Local and unnamed types as template parameters
+([n2657](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm))
+
+* Range-based `for` loops
+([n2930](http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html))
+([range-for](https://en.cppreference.com/w/cpp/language/range-for))
+
+### Excluded Features
+
+* New string and character literals
+    * New character types
+    ([n2249](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2249.html))
+    * Unicode string literals
+    ([n2442](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm))
+    * Raw string literals
+    ([n2442](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm))
+    * Universal character name literals
+    ([n2170](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html))
+
+    HotSpot doesn't need any of the new character and string literal
+    types.
+
+* User-defined literals
+([n2765](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2765.pdf)) &mdash;
+User-defined literals should not be added casually, but only
+through a proposal to add a specific UDL.
+
+* Inline namespaces
+([n2535](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2535.htm)) &mdash;
+HotSpot makes very limited use of namespaces.
+
+* `using namespace` directives.  In particular, don't use `using
+namespace std;` to avoid needing to qualify Standard Library names.
+
+* Propagating exceptions
+([n2179](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html)) &mdash;
+HotSpot does not permit the use of exceptions, so this feature isn't useful.
+
+* Avoid namespace-scoped variables with non-constexpr initialization.
+In particular, avoid variables with types requiring non-trivial
+initialization or destruction.  Initialization order problems can be
+difficult to deal with and lead to surprises, as can destruction
+ordering.  HotSpot doesn't generally try to cleanup on exit, and
+running destructors at exit can also lead to problems.
+
+* `[[deprecated]]` attribute
+([n3760](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3760.html)) &mdash;
+Not relevant in HotSpot code.
+
+* Avoid most operator overloading, preferring named functions.  When
+operator overloading is used, ensure the semantics conform to the
+normal expected behavior of the operation.
+
+* Avoid most implicit conversion constructors and (implicit or explicit)
+conversion operators.  (Note that conversion to `bool` isn't needed
+in HotSpot code because of the "no implicit boolean" guideline.)
+
+* Avoid covariant return types.
+
+* Avoid `goto` statements. 
+
+### Undecided Features
+
+This list is incomplete; it serves to explicitly call out some
+features that have not yet been discussed.
+
+* Trailing return type syntax for functions 
+([n2541](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2541.htm))
+
+* Variable templates
+([n3651](https://isocpp.org/files/papers/N3651.pdf))
+
+* Member initializers and aggregates
+([n3653](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html))
+
+* `[[noreturn]]` attribute
+([n2761](http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf))
+
+* Rvalue references and move semantics
+
+* Lambdas
+
+
+[ADL]: https://en.cppreference.com/w/cpp/language/adl 
+  "Argument Dependent Lookup"
+
+[ODR]: https://en.cppreference.com/w/cpp/language/definition
+  "One Definition Rule"
+
+[RAII]: https://en.cppreference.com/w/cpp/language/raii
+  "Resource Acquisition Is Initialization"
+
+[RTTI]: https://en.wikipedia.org/wiki/Run-time_type_information
+  "Runtime Type Information"
+
+[SFINAE]: https://en.cppreference.com/w/cpp/language/sfinae
+  "Substitution Failure Is Not An Error"

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+<h1 class="title">Native/Unit Test Development Guidelines</h1>
+</header>
+<nav id="TOC">
+<ul>
+<li><a href="#good-test-properties">Good test properties</a><ul>
+<li><a href="#lightness">Lightness</a></li>
+<li><a href="#isolation">Isolation</a></li>
+<li><a href="#atomicity-and-self-containment">Atomicity and self-containment</a></li>
+<li><a href="#repeatability">Repeatability</a></li>
+<li><a href="#informativeness">Informativeness</a></li>
+<li><a href="#testing-instead-of-visiting">Testing instead of visiting</a></li>
+<li><a href="#nearness">Nearness</a></li>
+</ul></li>
+<li><a href="#asserts">Asserts</a><ul>
+<li><a href="#several-checks">Several checks</a></li>
+<li><a href="#first-parameter-is-expected-value">First parameter is expected value</a></li>
+<li><a href="#floating-point-comparison">Floating-point comparison</a></li>
+<li><a href="#c-string-comparison">C string comparison</a></li>
+<li><a href="#error-messages">Error messages</a></li>
+<li><a href="#uncluttered-output">Uncluttered output</a></li>
+<li><a href="#failures-propagation">Failures propagation</a></li>
+</ul></li>
+<li><a href="#naming-and-grouping">Naming and Grouping</a><ul>
+<li><a href="#test-group-names">Test group names</a></li>
+<li><a href="#filename">Filename</a></li>
+<li><a href="#file-location">File location</a></li>
+<li><a href="#test-names">Test names</a></li>
+<li><a href="#fixture-classes">Fixture classes</a></li>
+<li><a href="#friend-classes">Friend classes</a></li>
+<li><a href="#oscpu-specific-tests">OS/CPU specific tests</a></li>
+</ul></li>
+<li><a href="#miscellaneous">Miscellaneous</a><ul>
+<li><a href="#hotspot-style">Hotspot style</a></li>
+<li><a href="#codetest-metrics">Code/test metrics</a></li>
+<li><a href="#access-to-non-public-members">Access to non-public members</a></li>
+<li><a href="#death-tests">Death tests</a></li>
+<li><a href="#external-flags">External flags</a></li>
+<li><a href="#test-specific-flags">Test-specific flags</a></li>
+<li><a href="#flag-restoring">Flag restoring</a></li>
+<li><a href="#googletest-documentation">GoogleTest documentation</a></li>
+</ul></li>
+<li><a href="#todo">TODO</a></li>
+</ul>
+</nav>
+<p>The purpose of these guidelines is to establish a shared vision on what kind of native tests and how we want to develop them for Hotspot using GoogleTest. Hence these guidelines include style items as well as test approach items.</p>
+<p>First section of this document describes properties of good tests which are common for almost all types of test regardless of language, framework, etc. Further sections provide recommendations to achieve those properties and other HotSpot and/or GoogleTest specific guidelines.</p>
+<h2 id="good-test-properties">Good test properties</h2>
+<h3 id="lightness">Lightness</h3>
+<p>Use the most lightweight type of tests.</p>
+<p>In Hotspot, there are 3 different types of tests regarding their dependency on a JVM, each next level is slower than previous</p>
+<ul>
+<li><p><code>TEST</code> : a test does not depend on a JVM</p></li>
+<li><p><code>TEST_VM</code> : a test does depend on an initialized JVM, but are supposed not to break a JVM, i.e. leave it in a workable state.</p></li>
+<li><p><code>TEST_OTHER_VM</code> : a test depends on a JVM and requires a freshly initialized JVM or leaves a JVM in non-workable state</p></li>
+</ul>
+<h3 id="isolation">Isolation</h3>
+<p>Tests have to be isolated: not to have visible side-effects, influences on other tests results.</p>
+<p>Results of one test should not depend on test execution order, other tests, otherwise it is becoming almost impossible to find out why a test failed. Due to hotspot-specific, it is not so easy to get a full isolation, e.g. we share an initialized JVM between all <code>TEST_VM</code> tests, so if your test changes JVM's state too drastically and does not change it back, you had better consider <code>TEST_OTHER_VM</code>.</p>
+<h3 id="atomicity-and-self-containment">Atomicity and self-containment</h3>
+<p>Tests should be <em>atomic</em> and <em>self-contained</em> at the same time.</p>
+<p>One test should check a particular part of a class, subsystem, functionality, etc. Then it is quite easy to determine what parts of a product are broken basing on test failures. On the other hand, a test should test that part more-or-less entirely, because when one sees a test <code>FooTest::bar</code>, they assume all aspects of bar from <code>Foo</code> are tested.</p>
+<p>However, it is impossible to cover all aspects even of a method, not to mention a subsystem. In such cases, it is recommended to have several tests, one for each aspect of a thing under test. For example one test to tests how <code>Foo::bar</code> works if an argument is <code>null</code>, another test to test how it works if an argument is acceptable but <code>Foo</code> is not in the right state to accept it and so on. This helps not only to make tests atomic, self-contained but also makes test name self-descriptive (discussed in more details in <a href="#test-names">Test names</a>).</p>
+<h3 id="repeatability">Repeatability</h3>
+<p>Tests have to be repeatable.</p>
+<p>Reproducibility is very crucial for a test. No one likes sporadic test failures, they are hard to investigate, fix and verify a fix.</p>
+<p>In some cases, it is quite hard to write a 100% repeatable test, since besides a test there can be other moving parts, e.g. in case of <code>TEST_VM</code> there are several concurrently running threads. Despite this, we should try to make a test as reproducible as possible.</p>
+<h3 id="informativeness">Informativeness</h3>
+<p>In case of a failure, a test should be as <em>informative</em> as possible.</p>
+<p>Having more information about a test failure than just compared values can be very useful for failure troubleshooting, it can reduce or even completely eliminate debugging hours. This is even more important in case of not 100% reproducible failures.</p>
+<p>Achieving this property, one can easily make a test too verbose, so it will be really hard to find useful information in the ocean of useless information. Hence they should not only think about how to provide <a href="#error-messages">good information</a>, but also <a href="#uncluttered-output">when to do it</a>.</p>
+<h3 id="testing-instead-of-visiting">Testing instead of visiting</h3>
+<p>Tests should <em>test</em>.</p>
+<p>It is not enough just to &quot;visit&quot; some code, a test should check that code does that it has to do, compare return values with expected values, check that desired side effects are done, and undesired are not, and so on. In other words, a test should contain at least one GoogleTest assertion and do not rely on JVM asserts.</p>
+<p>Generally speaking to write a good test, one should create a model of the system under tests, a model of possible bugs (or bugs which one wants to find) and design tests using those models.</p>
+<h3 id="nearness">Nearness</h3>
+<p>Prefer having checks inside test code.</p>
+<p>Not only does having test logic outside, e.g. verification method, depending on asserts in product code contradict with several items above but also decreases test’s readability and stability. It is much easier to understand that a test is testing when all testing logic is located inside a test or nearby in shared test libraries. As a rule of thumb, the closer a check to a test, the better.</p>
+<h2 id="asserts">Asserts</h2>
+<h3 id="several-checks">Several checks</h3>
+<p>Prefer <code>EXPECT</code> over <code>ASSERT</code> if possible.</p>
+<p>This is related to the <a href="#informativeness">informativeness</a> property of tests, information for other checks can help to better localize a defect’s root-cause. One should use <code>ASSERT</code> if it is impossible to continue test execution or if it does not make much sense. Later in the text, <code>EXPECT</code> forms will be used to refer to both <code>ASSERT/EXPECT</code>.</p>
+<p>When it is possible to make several different checks, but impossible to continue test execution if at least one check fails, you can use <code>::testing::Test::HasNonfatalFailure()</code> function. The recommended way to express that is <code>ASSERT_FALSE(::testing::Test::HasNonfatalFailure())</code>. Besides making it clear why a test is aborted, it also allows you to provide more information about a failure.</p>
+<h3 id="first-parameter-is-expected-value">First parameter is expected value</h3>
+<p>In all equality assertions, expected values should be passed as the first parameter.</p>
+<p>This convention is adopted by GoogleTest, and there is a slight difference in how GoogleTest treats parameters, the most important one is <code>null</code> detection. Due to different reasons, <code>null</code> detection is enabled only for the first parameter, that is to said <code>EXPECT_EQ(NULL, object)</code> checks that object is <code>null</code>, while <code>EXPECT_EQ(object, NULL)</code> checks that object equals to <code>NULL</code>, GoogleTest is very strict regarding types of compared values so the latter will generates a compile-time error.</p>
+<h3 id="floating-point-comparison">Floating-point comparison</h3>
+<p>Use floating-point special macros to compare <code>float/double</code> values.</p>
+<p>Because of floating-point number representations and round-off errors, regular equality comparison will not return true in most cases. There are special <code>EXPECT_FLOAT_EQ/EXPECT_DOUBLE_EQ</code> assertions which check that the distance between compared values is not more than 4 ULPs, there is also <code>EXPECT_NEAR(v1, v2, eps)</code> which checks that the absolute value of the difference between <code>v1</code> and <code>v2</code> is not greater than <code>eps</code>.</p>
+<h3 id="c-string-comparison">C string comparison</h3>
+<p>Use string special macros for C strings comparisons.</p>
+<p><code>EXPECT_EQ</code> just compares pointers’ values, which is hardly what one wants comparing C strings. GoogleTest provides <code>EXPECT_STREQ</code> and <code>EXPECT_STRNE</code> macros to compare C string contents. There are also case-insensitive versions <code>EXPECT_STRCASEEQ</code>, <code>EXPECT_STRCASENE</code>.</p>
+<h3 id="error-messages">Error messages</h3>
+<p>Provide informative, but not too verbose error messages.</p>
+<p>All GoogleTest asserts print compared expressions and their values, so there is no need to have them in error messages. Asserts print only compared values, they do not print any of interim variables, e.g. <code>ASSERT_TRUE((val1 == val2 &amp;&amp; isFail(foo(8)) || i == 18)</code> prints only one value. If you use some complex predicates, please consider <code>EXPECT_PRED*</code> or <code>EXPECT_FORMAT_PRED</code> assertions family, they check that a predicate returns true/success and print out all parameters values.</p>
+<p>However in some cases, default information is not enough, a commonly used example is an assert inside a loop, GoogleTest will not print iteration values (unless it is an assert's parameter). Other demonstrative examples are printing error code and a corresponding error message; printing internal states which might have an impact on results. One should add this information to assert message using <code>&lt;&lt;</code> operator.</p>
+<h3 id="uncluttered-output">Uncluttered output</h3>
+<p>Print information only if it is needed.</p>
+<p>Too verbose tests which print all information even if they pass are very bad practice. They just pollute output, so it becomes harder to find useful information. In order not print information till it is really needed, one should consider saving it to a temporary buffer and pass to an assert. <a href="https://hg.openjdk.java.net/jdk/jdk/file/tip/test/hotspot/gtest/gc/shared/test_memset_with_concurrent_readers.cpp" class="uri">https://hg.openjdk.java.net/jdk/jdk/file/tip/test/hotspot/gtest/gc/shared/test_memset_with_concurrent_readers.cpp</a> has a good example how to do that.</p>
+<h3 id="failures-propagation">Failures propagation</h3>
+<p>Wrap a subroutine call into <code>EXPECT_NO_FATAL_FAILURE</code> macro to propagate failures.</p>
+<p><code>ASSERT</code> and <code>FAIL</code> abort only the current function, so if you have them in a subroutine, a test will not be aborted after the subroutine even if <code>ASSERT</code> or <code>FAIL</code> fails. You should call such subroutines in <code>ASSERT_NO_FATAL_FAILURE</code> macro to propagate fatal failures and abort a test. <code>(EXPECT|ASSERT)_NO_FATAL_FAILURE</code> can also be used to provide more information.</p>
+<p>Due to obvious reasons, there are no <code>(EXPECT|ASSERT)_NO_NONFATAL_FAILURE</code> macros. However, if you need to check if a subroutine generated a nonfatal failure (failed an <code>EXPECT</code>), you can use <code>::testing::Test::HasNonfatalFailure</code> function, or <code>::testing::Test::HasFailure</code> function to check if a subroutine generated any failures, see <a href="#several-checks">Several checks</a>.</p>
+<h2 id="naming-and-grouping">Naming and Grouping</h2>
+<h3 id="test-group-names">Test group names</h3>
+<p>Test group names should be in CamelCase, start and end with a letter. A test group should be named after tested class, functionality, subsystem, etc.</p>
+<p>This naming scheme helps to find tests, filter them and simplifies test failure analysis. For example, class <code>Foo</code> - test group <code>Foo</code>, compiler logging subsystem - test group <code>CompilerLogging</code>, G1 GC — test group <code>G1GC</code>, and so forth.</p>
+<h3 id="filename">Filename</h3>
+<p>A test file must have <code>test_</code> prefix and <code>.cpp</code> suffix.</p>
+<p>Both are actually requirements from the current build system to recognize your tests.</p>
+<h3 id="file-location">File location</h3>
+<p>Test file location should reflect a location of the tested part of the product.</p>
+<ul>
+<li><p>All unit tests for a class from <code>foo/bar/baz.cpp</code> should be placed <code>foo/bar/test_baz.cpp</code> in <code>hotspot/test/native/</code> directory. Having all tests for a class in one file is a common practice for unit tests, it helps to see all existing tests at once, share functions and/or resources without losing encapsulation.</p></li>
+<li><p>For tests which test more than one class, directory hierarchy should be the same as product hierarchy, and file name should reflect the name of the tested subsystem/functionality. For example, if a sub-system under tests belongs to <code>gc/g1</code>, tests should be placed in <code>gc/g1</code> directory.</p></li>
+</ul>
+<p>Please note that framework prepends directory name to a test group name. For example, if <code>TEST(foo, check_this)</code> and <code>TEST(bar, check_that)</code> are defined in <code>hotspot/test/native/gc/shared/test_foo.cpp</code> file, they will be reported as <code>gc/shared/foo::check_this</code> and <code>gc/shared/bar::check_that</code>.</p>
+<h3 id="test-names">Test names</h3>
+<p>Test names should be in small_snake_case, start and end with a letter. A test name should reflect that a test checks.</p>
+<p>Such naming makes tests self-descriptive and helps a lot during the whole test life cycle. It is easy to do test planning, test inventory, to see what things are not tested, to review tests, to analyze test failures, to evolve a test, etc. For example <code>foo_return_0_if_name_is_null</code> is better than <code>foo_sanity</code> or <code>foo_basic</code> or just <code>foo</code>, <code>humongous_objects_can_not_be_moved_by_young_gc</code> is better than <code>ho_young_gc</code>.</p>
+<p>Actually using underscore is against GoogleTest project convention, because it can lead to illegal identifiers, however, this is too strict. Restricting usage of underscore for test names only and prohibiting test name starts or ends with an underscore are enough to be safe.</p>
+<h3 id="fixture-classes">Fixture classes</h3>
+<p>Fixture classes should be named after tested classes, subsystems, etc (follow <a href="#test-group-names">Test group names rule</a>) and have <code>Test</code> suffix to prevent class name conflicts.</p>
+<h3 id="friend-classes">Friend classes</h3>
+<p>All test purpose friends should have either <code>Test</code> or <code>Testable</code> suffix.</p>
+<p>It greatly simplifies understanding of friendship’s purpose and allows statically check that private members are not exposed unexpectedly. Having <code>FooTest</code> as a friend of <code>Foo</code> without any comments will be understood as a necessary evil to get testability.</p>
+<h3 id="oscpu-specific-tests">OS/CPU specific tests</h3>
+<p>Guard OS/CPU specific tests by <code>#ifdef</code> and have OS/CPU name in filename.</p>
+<p>For the time being, we do not support separate directories for OS, CPU, OS-CPU specific tests, in case we will have lots of such tests, we will change directory layout and build system to support that in the same way it is done in hotspot.</p>
+<h2 id="miscellaneous">Miscellaneous</h2>
+<h3 id="hotspot-style">Hotspot style</h3>
+<p>Abide the norms and rules accepted in Hotspot style guide.</p>
+<p>Tests are a part of Hotspot, so everything (if applicable) we use for Hotspot, should be used for tests as well. Those guidelines cover test-specific things.</p>
+<h3 id="codetest-metrics">Code/test metrics</h3>
+<p>Coverage information and other code/test metrics are quite useful to decide what tests should be written, what tests should be improved and what can be removed.</p>
+<p>For unit tests, widely used and well-known coverage metric is branch coverage, which provides good quality of tests with relatively easy test development process. For other levels of testing, branch coverage is not as good, and one should consider others metrics, e.g. transaction flow coverage, data flow coverage.</p>
+<h3 id="access-to-non-public-members">Access to non-public members</h3>
+<p>Use explicit friend class to get access to non-public members.</p>
+<p>We do not use GoogleTest macro to declare friendship relation, because, from our point of view, it is less clear than an explicit declaration.</p>
+<p>Declaring a test fixture class as a friend class of a tested test is the easiest and the clearest way to get access. However, it has some disadvantages, here is some of them:</p>
+<ul>
+<li>Each test has to be declared as a friend</li>
+<li>Subclasses do not inheritance friendship relation</li>
+</ul>
+<p>In other words, it is harder to share code between tests. Hence if you want to share code or expect it to be useful in other tests, you should consider making members in a tested class protected and introduce a shared test-only class which expose those members via public functions, or even making members publicly accessible right away in a product class. If it is not an option to change members visibility, one can create a friend class which exposes members.</p>
+<h3 id="death-tests">Death tests</h3>
+<p>You can not use death tests inside <code>TEST_OTHER_VM</code> and <code>TEST_VM_ASSERT*</code>.</p>
+<p>We tried to make Hotspot-GoogleTest integration as transparent as possible, however, due to the current implementation of <code>TEST_OTHER_VM</code> and <code>TEST_VM_ASSERT*</code> tests, you cannot use death test functionality in them. These tests are implemented as GoogleTest death tests, and GoogleTest does not allow to have a death test inside another death test.</p>
+<h3 id="external-flags">External flags</h3>
+<p>Passing external flags to a tested JVM is not supported.</p>
+<p>The rationality of such design decision is to simplify both tests and a test framework and to avoid failures related to incompatible flags combination till there is a good solution for that. However there are cases when one wants to test a JVM with specific flags combination, <code>_JAVA_OPTIONS</code> environment variable can be used to do that. Flags from <code>_JAVA_OPTIONS</code> will be used in <code>TEST_VM</code>, <code>TEST_OTHER_VM</code> and <code>TEST_VM_ASSERT*</code> tests.</p>
+<h3 id="test-specific-flags">Test-specific flags</h3>
+<p>Passing flags to a tested JVM in <code>TEST_OTHER_VM</code> and <code>TEST_VM_ASSERT*</code> should be possible, but is not implemented yet.</p>
+<p>Facility to pass test-specific flags is needed for system, regression or other types of tests which require a fully initialized JVM in some particular configuration, e.g. with Serial GC selected. There is no support for such tests now, however, there is a plan to add that in upcoming releases.</p>
+<p>For now, if a test depends on flags values, it should have <code>if (!&lt;flag&gt;) { return }</code> guards in the very beginning and <code>@requires</code> comment similar to jtreg <code>@requires</code> directive right before test macros. <a href="https://hg.openjdk.java.net/jdk/jdk/file/tip/test/hotspot/gtest/gc/g1/test_g1IHOPControl.cpp" class="uri">https://hg.openjdk.java.net/jdk/jdk/file/tip/test/hotspot/gtest/gc/g1/test_g1IHOPControl.cpp</a> ha an example of this temporary workaround. It is important to follow that pattern as it allows us to easily find all such tests and update them as soon as there is an implementation of flag passing facility.</p>
+<p>In long-term, we expect jtreg to support GoogleTest tests as first class citizens, that is to say, jtreg will parse <span class="citation" data-cites="requires">@requires</span> comments and filter out inapplicable tests.</p>
+<h3 id="flag-restoring">Flag restoring</h3>
+<p>Restore changed flags.</p>
+<p>It is quite common for tests to configure JVM in a certain way changing flags’ values. GoogleTest provides two ways to set up environment before a test and restore it afterward: using either constructor and destructor or <code>SetUp</code> and <code>TearDown</code> functions. Both ways require to use a test fixture class, which sometimes is too wordy. The simpler facilities like <code>FLAG_GUARD</code> macro or <code>*FlagSetting</code> classes could be used in such cases to restore/set values.</p>
+<p>Caveats:</p>
+<ul>
+<li><p>Changing a flag’s value could break the invariants between flags' values and hence could lead to unexpected/unsupported JVM state.</p></li>
+<li><p><code>FLAG_SET_*</code> macros can change more than one flag (in order to maintain invariants) so it is hard to predict what flags will be changed and it makes restoring all changed flags a nontrivial task. Thus in case one uses <code>FLAG_SET_*</code> macros, they should use <code>TEST_OTHER_VM</code> test type.</p></li>
+</ul>
+<h3 id="googletest-documentation">GoogleTest documentation</h3>
+<p>In case you have any questions regarding GoogleTest itself, its asserts, test declaration macros, other macros, etc, please consult its documentation.</p>
+<h2 id="todo">TODO</h2>
+<p>Although this document provides guidelines on the most important parts of test development using GTest, it still misses a few items:</p>
+<ul>
+<li><p>Examples, esp for <a href="#access-to-non-public-members">access to non-public members</a></p></li>
+<li>test types: purpose, drawbacks, limitation
+<ul>
+<li><code>TEST_VM</code></li>
+<li><code>TEST_VM_F</code></li>
+<li><code>TEST_OTHER_VM</code></li>
+<li><code>TEST_VM_ASSERT</code></li>
+<li><code>TEST_VM_ASSERT_MSG</code></li>
+</ul></li>
+<li>Miscellaneous
+<ul>
+<li>Test libraries
+<ul>
+<li>where to place</li>
+<li>how to write</li>
+<li>how to use</li>
+</ul></li>
+<li>test your tests
+<ul>
+<li>how to run tests in random order</li>
+<li>how to run only specific tests</li>
+<li>how to run each test separately</li>
+<li>check that a test can find bugs it is supposed to by introducing them</li>
+</ul></li>
+<li>mocks/stubs/dependency injection</li>
+<li>setUp/tearDown
+<ul>
+<li>vs c-tor/d-tor</li>
+<li>empty test to test them</li>
+</ul></li>
+<li>internal (declared in .cpp) struct/classes</li>
+</ul></li>
+</ul>
+</body>
+</html>

doc/hotspot-unit-tests.md

@@ -0,0 +1,451 @@
+% Native/Unit Test Development Guidelines
+
+The purpose of these guidelines is to establish a shared vision on
+what kind of native tests and how we want to develop them for Hotspot
+using GoogleTest. Hence these guidelines include style items as well
+as test approach items.
+
+First section of this document describes properties of good tests
+which are common for almost all types of test regardless of language,
+framework, etc. Further sections provide recommendations to achieve
+those properties and other HotSpot and/or GoogleTest specific
+guidelines.
+
+## Good test properties
+
+### Lightness
+
+Use the most lightweight type of tests.
+
+In Hotspot, there are 3 different types of tests regarding their
+dependency on a JVM, each next level is slower than previous
+
+* `TEST` : a test does not depend on a JVM
+
+* `TEST_VM` : a test does depend on an initialized JVM, but are
+supposed not to break a JVM, i.e. leave it in a workable state.
+
+* `TEST_OTHER_VM` : a test depends on a JVM and requires a freshly
+initialized JVM or leaves a JVM in non-workable state
+
+### Isolation
+
+Tests have to be isolated: not to have visible side-effects,
+influences on other tests results.
+
+Results of one test should not depend on test execution order, other
+tests, otherwise it is becoming almost impossible to find out why a
+test failed. Due to hotspot-specific, it is not so easy to get a full
+isolation, e.g. we share an initialized JVM between all `TEST_VM` tests,
+so if your test changes JVM's state too drastically and does not
+change it back, you had better consider `TEST_OTHER_VM`.
+
+### Atomicity and self-containment
+
+Tests should be *atomic* and *self-contained* at the same time.
+
+One test should check a particular part of a class, subsystem,
+functionality, etc. Then it is quite easy to determine what parts of a
+product are broken basing on test failures. On the other hand, a test
+should test that part more-or-less entirely, because when one sees a
+test `FooTest::bar`, they assume all aspects of bar from `Foo` are tested.
+
+However, it is impossible to cover all aspects even of a method, not
+to mention a subsystem. In such cases, it is recommended to have
+several tests, one for each aspect of a thing under test. For example
+one test to tests how `Foo::bar` works if an argument is `null`, another
+test to test how it works if an argument is acceptable but `Foo` is not
+in the right state to accept it and so on. This helps not only to make
+tests atomic, self-contained but also makes test name self-descriptive
+(discussed in more details in [Test names](#test-names)).
+
+### Repeatability
+
+Tests have to be repeatable.
+
+Reproducibility is very crucial for a test. No one likes sporadic test
+failures, they are hard to investigate, fix and verify a fix.
+
+In some cases, it is quite hard to write a 100% repeatable test, since
+besides a test there can be other moving parts, e.g. in case of
+`TEST_VM` there are several concurrently running threads. Despite this,
+we should try to make a test as reproducible as possible.
+
+### Informativeness
+
+In case of a failure, a test should be as *informative* as possible.
+
+Having more information about a test failure than just compared values
+can be very useful for failure troubleshooting, it can reduce or even
+completely eliminate debugging hours. This is even more important in
+case of not 100% reproducible failures.
+
+Achieving this property, one can easily make a test too verbose, so it
+will be really hard to find useful information in the ocean of useless
+information. Hence they should not only think about how to provide
+[good information](#error-messages), but also
+[when to do it](#uncluttered-output).
+
+### Testing instead of visiting
+
+Tests should *test*.
+
+It is not enough just to "visit" some code, a test should check that
+code does that it has to do, compare return values with expected
+values, check that desired side effects are done, and undesired are
+not, and so on. In other words, a test should contain at least one
+GoogleTest assertion and do not rely on JVM asserts.
+
+Generally speaking to write a good test, one should create a model of
+the system under tests, a model of possible bugs (or bugs which one
+wants to find) and design tests using those models.
+
+### Nearness 
+
+Prefer having checks inside test code.
+
+Not only does having test logic outside, e.g. verification method,
+depending on asserts in product code contradict with several items
+above but also decreases test’s readability and stability. It is much
+easier to understand that a test is testing when all testing logic is
+located inside a test or nearby in shared test libraries. As a rule of
+thumb, the closer a check to a test, the better.
+
+## Asserts
+
+### Several checks
+
+Prefer `EXPECT` over `ASSERT` if possible.
+
+This is related to the [informativeness](#informativeness) property of
+tests, information for other checks can help to better localize a
+defect’s root-cause. One should use `ASSERT` if it is impossible to
+continue test execution or if it does not make much sense. Later in
+the text, `EXPECT` forms will be used to refer to both
+`ASSERT/EXPECT`.
+
+When it is possible to make several different checks, but impossible
+to continue test execution if at least one check fails, you can
+use `::testing::Test::HasNonfatalFailure()` function. The recommended
+way to express that is
+`ASSERT_FALSE(::testing::Test::HasNonfatalFailure())`. Besides making it
+clear why a test is aborted, it also allows you to provide more
+information about a failure.
+
+### First parameter is expected value
+
+In all equality assertions, expected values should be passed as the
+first parameter.
+
+This convention is adopted by GoogleTest, and there is a slight
+difference in how GoogleTest treats parameters, the most important one
+is `null` detection. Due to different reasons, `null` detection is enabled
+only for the first parameter, that is to said `EXPECT_EQ(NULL, object)`
+checks that object is `null`, while `EXPECT_EQ(object, NULL)` checks that
+object equals to `NULL`, GoogleTest is very strict regarding types of
+compared values so the latter will generates a compile-time error.
+
+### Floating-point comparison
+
+Use floating-point special macros to compare `float/double` values.
+
+Because of floating-point number representations and round-off errors,
+regular equality comparison will not return true in most cases. There
+are special `EXPECT_FLOAT_EQ/EXPECT_DOUBLE_EQ` assertions which check
+that the distance between compared values is not more than 4 ULPs,
+there is also `EXPECT_NEAR(v1, v2, eps)` which checks that the absolute
+value of the difference between `v1` and `v2` is not greater than `eps`.
+
+### C string comparison 
+
+Use string special macros for C strings comparisons.
+
+`EXPECT_EQ` just compares pointers’ values, which is hardly what one
+wants comparing C strings. GoogleTest provides `EXPECT_STREQ` and
+`EXPECT_STRNE` macros to compare C string contents. There are also
+case-insensitive versions `EXPECT_STRCASEEQ`, `EXPECT_STRCASENE`.
+
+### Error messages
+
+Provide informative, but not too verbose error messages.
+
+All GoogleTest asserts print compared expressions and their values, so
+there is no need to have them in error messages. Asserts print only
+compared values, they do not print any of interim variables, e.g.
+`ASSERT_TRUE((val1 == val2 && isFail(foo(8)) || i == 18)` prints only
+one value. If you use some complex predicates, please consider
+`EXPECT_PRED*` or `EXPECT_FORMAT_PRED` assertions family, they check that
+a predicate returns true/success and print out all parameters values.
+
+However in some cases, default information is not enough, a commonly
+used example is an assert inside a loop, GoogleTest will not print
+iteration values (unless it is an assert's parameter). Other
+demonstrative examples are printing error code and a corresponding
+error message; printing internal states which might have an impact on
+results. One should add this information to assert message using `<<`
+operator.
+
+### Uncluttered output
+
+Print information only if it is needed.
+
+Too verbose tests which print all information even if they pass are
+very bad practice. They just pollute output, so it becomes harder to
+find useful information. In order not print information till it is
+really needed, one should consider saving it to a temporary buffer and
+pass to an assert.
+<https://hg.openjdk.java.net/jdk/jdk/file/tip/test/hotspot/gtest/gc/shared/test_memset_with_concurrent_readers.cpp>
+has a good example how to do that.
+
+### Failures propagation
+
+Wrap a subroutine call into `EXPECT_NO_FATAL_FAILURE` macro to
+propagate failures.
+
+`ASSERT` and `FAIL` abort only the current function, so if you have them
+in a subroutine, a test will not be aborted after the subroutine even
+if `ASSERT` or `FAIL` fails. You should call such subroutines in
+`ASSERT_NO_FATAL_FAILURE` macro to propagate fatal failures and abort a
+test. `(EXPECT|ASSERT)_NO_FATAL_FAILURE` can also be used to provide
+more information.
+
+Due to obvious reasons, there are no
+`(EXPECT|ASSERT)_NO_NONFATAL_FAILURE` macros. However, if you need to
+check if a subroutine generated a nonfatal failure (failed an `EXPECT`),
+you can use `::testing::Test::HasNonfatalFailure` function,
+or `::testing::Test::HasFailure` function to check if a subroutine
+generated any failures, see [Several checks](#several-checks).
+
+## Naming and Grouping
+
+### Test group names
+
+Test group names should be in CamelCase, start and end with a letter.
+A test group should be named after tested class, functionality,
+subsystem, etc.
+
+This naming scheme helps to find tests, filter them and simplifies
+test failure analysis. For example, class `Foo` - test group `Foo`,
+compiler logging subsystem - test group `CompilerLogging`, G1 GC — test
+group `G1GC`, and so forth.
+
+### Filename 
+
+A test file must have `test_` prefix and `.cpp` suffix.
+
+Both are actually requirements from the current build system to
+recognize your tests.
+
+### File location
+
+Test file location should reflect a location of the tested part of the product.
+
+* All unit tests for a class from `foo/bar/baz.cpp` should be placed
+`foo/bar/test_baz.cpp` in `hotspot/test/native/` directory. Having all
+tests for a class in one file is a common practice for unit tests, it
+helps to see all existing tests at once, share functions and/or
+resources without losing encapsulation.
+
+* For tests which test more than one class, directory hierarchy should
+be the same as product hierarchy, and file name should reflect the
+name of the tested subsystem/functionality. For example, if a
+sub-system under tests belongs to `gc/g1`, tests should be placed in
+`gc/g1` directory.
+
+Please note that framework prepends directory name to a test group
+name. For example, if `TEST(foo, check_this)` and `TEST(bar, check_that)`
+are defined in `hotspot/test/native/gc/shared/test_foo.cpp` file, they
+will be reported as `gc/shared/foo::check_this` and
+`gc/shared/bar::check_that`.
+
+### Test names
+
+Test names should be in small_snake_case, start and end with a letter.
+A test name should reflect that a test checks.
+
+Such naming makes tests self-descriptive and helps a lot during the
+whole test life cycle. It is easy to do test planning, test inventory,
+to see what things are not tested, to review tests, to analyze test
+failures, to evolve a test, etc. For example
+`foo_return_0_if_name_is_null` is better than `foo_sanity` or `foo_basic` or
+just `foo`, `humongous_objects_can_not_be_moved_by_young_gc` is better
+than `ho_young_gc`.
+
+Actually using underscore is against GoogleTest project convention,
+because it can lead to illegal identifiers, however, this is too
+strict. Restricting usage of underscore for test names only and
+prohibiting test name starts or ends with an underscore are enough to
+be safe.
+
+### Fixture classes
+
+Fixture classes should be named after tested classes, subsystems, etc
+(follow [Test group names rule](#test-group-names)) and have
+`Test` suffix to prevent class name conflicts.
+
+### Friend classes 
+
+All test purpose friends should have either `Test` or `Testable` suffix.
+
+It greatly simplifies understanding of friendship’s purpose and allows
+statically check that private members are not exposed unexpectedly.
+Having `FooTest` as a friend of `Foo` without any comments will be
+understood as a necessary evil to get testability.
+
+### OS/CPU specific tests
+
+Guard OS/CPU specific tests by `#ifdef` and have OS/CPU name in filename.
+
+For the time being, we do not support separate directories for OS,
+CPU, OS-CPU specific tests, in case we will have lots of such tests,
+we will change directory layout and build system to support that in
+the same way it is done in hotspot.
+
+## Miscellaneous
+
+### Hotspot style 
+
+Abide the norms and rules accepted in Hotspot style guide.
+
+Tests are a part of Hotspot, so everything (if applicable) we use for
+Hotspot, should be used for tests as well. Those guidelines cover
+test-specific things.
+
+### Code/test metrics
+
+Coverage information and other code/test metrics are quite useful to
+decide what tests should be written, what tests should be improved and
+what can be removed.
+
+For unit tests, widely used and well-known coverage metric is branch
+coverage, which provides good quality of tests with relatively easy
+test development process. For other levels of testing, branch coverage
+is not as good, and one should consider others metrics, e.g.
+transaction flow coverage, data flow coverage.
+
+### Access to non-public members
+
+Use explicit friend class to get access to non-public members.
+
+We do not use GoogleTest macro to declare friendship relation,
+because, from our point of view, it is less clear than an explicit
+declaration.
+
+Declaring a test fixture class as a friend class of a tested test is
+the easiest and the clearest way to get access. However, it has some
+disadvantages, here is some of them:
+
+* Each test has to be declared as a friend
+* Subclasses do not inheritance friendship relation
+
+In other words, it is harder to share code between tests. Hence if you
+want to share code or expect it to be useful in other tests, you
+should consider making members in a tested class protected and
+introduce a shared test-only class which expose those members via
+public functions, or even making members publicly accessible right
+away in a product class. If it is not an option to change members
+visibility, one can create a friend class which exposes members.
+
+### Death tests
+
+You can not use death tests inside `TEST_OTHER_VM` and `TEST_VM_ASSERT*`.
+
+We tried to make Hotspot-GoogleTest integration as transparent as
+possible, however, due to the current implementation of `TEST_OTHER_VM`
+and `TEST_VM_ASSERT*` tests, you cannot use death test functionality in
+them. These tests are implemented as GoogleTest death tests, and
+GoogleTest does not allow to have a death test inside another death
+test.
+
+### External flags
+
+Passing external flags to a tested JVM is not supported.
+
+The rationality of such design decision is to simplify both tests and
+a test framework and to avoid failures related to incompatible flags
+combination till there is a good solution for that. However there are
+cases when one wants to test a JVM with specific flags combination,
+`_JAVA_OPTIONS` environment variable can be used to do that. Flags from
+`_JAVA_OPTIONS` will be used in `TEST_VM`, `TEST_OTHER_VM` and
+`TEST_VM_ASSERT*` tests.
+
+### Test-specific flags
+
+Passing flags to a tested JVM in `TEST_OTHER_VM` and `TEST_VM_ASSERT*`
+should be possible, but is not implemented yet.
+
+Facility to pass test-specific flags is needed for system, regression
+or other types of tests which require a fully initialized JVM in some
+particular configuration, e.g. with Serial GC selected. There is no
+support for such tests now, however, there is a plan to add that in
+upcoming releases.
+
+For now, if a test depends on flags values, it should have `if
+(!<flag>) { return }` guards in the very beginning and `@requires`
+comment similar to jtreg `@requires` directive right before test macros.
+<https://hg.openjdk.java.net/jdk/jdk/file/tip/test/hotspot/gtest/gc/g1/test_g1IHOPControl.cpp>
+ha an example of this temporary workaround.  It is important to follow
+that pattern as it allows us to easily find all such tests and update
+them as soon as there is an implementation of flag passing facility.
+
+In long-term, we expect jtreg to support GoogleTest tests as first
+class citizens, that is to say, jtreg will parse @requires comments
+and filter out inapplicable tests.
+
+### Flag restoring 
+
+Restore changed flags.
+
+It is quite common for tests to configure JVM in a certain way
+changing flags’ values. GoogleTest provides two ways to set up
+environment before a test and restore it afterward: using either
+constructor and destructor or `SetUp` and `TearDown` functions. Both ways
+require to use a test fixture class, which sometimes is too wordy. The
+simpler facilities like `FLAG_GUARD` macro or `*FlagSetting` classes could
+be used in such cases to restore/set values.
+
+Caveats: 
+
+* Changing a flag’s value could break the invariants between flags' values and hence could lead to unexpected/unsupported JVM state.
+
+* `FLAG_SET_*` macros can change more than one flag (in order to
+maintain invariants) so it is hard to predict what flags will be
+changed and it makes restoring all changed flags a nontrivial task.
+Thus in case one uses `FLAG_SET_*` macros, they should use `TEST_OTHER_VM`
+test type.
+
+### GoogleTest documentation
+
+In case you have any questions regarding GoogleTest itself, its
+asserts, test declaration macros, other macros, etc, please consult
+its documentation.
+
+## TODO
+
+Although this document provides guidelines on the most important parts
+of test development using GTest, it still misses a few items:
+
+* Examples, esp for [access to non-public members](#access-to-non-public-members)
+
+* test types: purpose, drawbacks, limitation
+    * `TEST_VM`
+    * `TEST_VM_F`
+    * `TEST_OTHER_VM`
+    * `TEST_VM_ASSERT`
+    * `TEST_VM_ASSERT_MSG`
+
+* Miscellaneous
+    * Test libraries
+        * where to place
+        * how to write
+        * how to use
+    * test your tests
+        * how to run tests in random order
+        * how to run only specific tests
+        * how to run each test separately
+        * check that a test can find bugs it is supposed to by introducing them
+    * mocks/stubs/dependency injection
+    * setUp/tearDown
+        * vs c-tor/d-tor
+        * empty test to test them
+    * internal (declared in .cpp) struct/classes

make/Bundles.gmk

@@ -242,16 +242,6 @@ ifneq ($(filter product-bundles% legacy-bundles, $(MAKECMDGOALS)), )
       )
 
   JDK_SYMBOLS_BUNDLE_FILES := \
-      $(filter \
-          $(JDK_SYMBOLS_EXCLUDE_PATTERN) \
-          $(SYMBOLS_EXCLUDE_PATTERN) \
-          , \
-          $(filter-out \
-              $(JDK_IMAGE_HOMEDIR)/demo/% %.stripped.pdb \
-              , \
-              $(ALL_JDK_SYMBOLS_FILES) \
-          ) \
-      ) \
       $(call FindFiles, $(SYMBOLS_IMAGE_DIR))
 
   TEST_DEMOS_BUNDLE_FILES := $(filter $(JDK_DEMOS_IMAGE_HOMEDIR)/demo/%, \
@@ -383,7 +373,7 @@ ifneq ($(filter product-bundles% legacy-bundles, $(MAKECMDGOALS)), )
     $(eval $(call SetupBundleFile, BUILD_JDK_SYMBOLS_BUNDLE, \
         BUNDLE_NAME := $(JDK_SYMBOLS_BUNDLE_NAME), \
         FILES := $(JDK_SYMBOLS_BUNDLE_FILES), \
-        BASE_DIRS := $(JDK_SYMBOLS_IMAGE_DIR) $(wildcard $(SYMBOLS_IMAGE_DIR)), \
+        BASE_DIRS := $(SYMBOLS_IMAGE_DIR), \
         SUBDIR := $(JDK_BUNDLE_SUBDIR), \
         UNZIP_DEBUGINFO := true, \
     ))
@@ -420,17 +410,43 @@ endif
 
 ################################################################################
 
-ifneq ($(filter docs-bundles, $(MAKECMDGOALS)), )
-  DOCS_BUNDLE_FILES := $(call FindFiles, $(DOCS_IMAGE_DIR))
+ifneq ($(filter docs-jdk-bundles, $(MAKECMDGOALS)), )
+  DOCS_JDK_BUNDLE_FILES := $(call FindFiles, $(DOCS_JDK_IMAGE_DIR))
 
-  $(eval $(call SetupBundleFile, BUILD_DOCS_BUNDLE, \
-      BUNDLE_NAME := $(DOCS_BUNDLE_NAME), \
-      FILES := $(DOCS_BUNDLE_FILES), \
-      BASE_DIRS := $(DOCS_IMAGE_DIR), \
+  $(eval $(call SetupBundleFile, BUILD_DOCS_JDK_BUNDLE, \
+      BUNDLE_NAME := $(DOCS_JDK_BUNDLE_NAME), \
+      FILES := $(DOCS_JDK_BUNDLE_FILES), \
+      BASE_DIRS := $(DOCS_JDK_IMAGE_DIR), \
       SUBDIR := docs, \
   ))
 
-  DOCS_TARGETS += $(BUILD_DOCS_BUNDLE)
+  DOCS_JDK_TARGETS += $(BUILD_DOCS_JDK_BUNDLE)
+endif
+
+ifneq ($(filter docs-javase-bundles, $(MAKECMDGOALS)), )
+  DOCS_JAVASE_BUNDLE_FILES := $(call FindFiles, $(DOCS_JAVASE_IMAGE_DIR))
+
+  $(eval $(call SetupBundleFile, BUILD_DOCS_JAVASE_BUNDLE, \
+      BUNDLE_NAME := $(DOCS_JAVASE_BUNDLE_NAME), \
+      FILES := $(DOCS_JAVASE_BUNDLE_FILES), \
+      BASE_DIRS := $(DOCS_JAVASE_IMAGE_DIR), \
+      SUBDIR := docs-javase, \
+  ))
+
+  DOCS_JAVASE_TARGETS += $(BUILD_DOCS_JAVASE_BUNDLE)
+endif
+
+ifneq ($(filter docs-reference-bundles, $(MAKECMDGOALS)), )
+  DOCS_REFERENCE_BUNDLE_FILES := $(call FindFiles, $(DOCS_REFERENCE_IMAGE_DIR))
+
+  $(eval $(call SetupBundleFile, BUILD_DOCS_REFERENCE_BUNDLE, \
+      BUNDLE_NAME := $(DOCS_REFERENCE_BUNDLE_NAME), \
+      FILES := $(DOCS_REFERENCE_BUNDLE_FILES), \
+      BASE_DIRS := $(DOCS_REFERENCE_IMAGE_DIR), \
+      SUBDIR := docs-reference, \
+  ))
+
+  DOCS_REFERENCE_TARGETS += $(BUILD_DOCS_REFERENCE_BUNDLE)
 endif
 
 ################################################################################
@@ -479,9 +495,12 @@ $(eval $(call IncludeCustomExtension, Bundles.gmk))
 product-bundles: $(PRODUCT_TARGETS)
 legacy-bundles: $(LEGACY_TARGETS)
 test-bundles: $(TEST_TARGETS)
-docs-bundles: $(DOCS_TARGETS)
+docs-jdk-bundles: $(DOCS_JDK_TARGETS)
+docs-javase-bundles: $(DOCS_JAVASE_TARGETS)
+docs-reference-bundles: $(DOCS_REFERENCE_TARGETS)
 static-libs-bundles: $(STATIC_LIBS_TARGETS)
 jcov-bundles: $(JCOV_TARGETS)
 
-.PHONY: all default product-bundles test-bundles docs-bundles \
+.PHONY: all default product-bundles test-bundles \
+    docs-jdk-bundles docs-javase-bundles docs-reference-bundles \
     static-libs-bundles jcov-bundles

make/CompileCommands.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -45,11 +45,6 @@ $(OUTPUTDIR)/compile_commands.json: $(wildcard $(MAKESUPPORT_OUTPUTDIR)/compile-
 	$(RM) $@
 	$(FIND) $(MAKESUPPORT_OUTPUTDIR)/compile-commands/ -name \*.json | \
 	    $(SORT) | $(XARGS) $(CAT) >> $@.tmp
-	$(if $(FIXPATH),$(FIXPATH) $(AWK) 'BEGIN { \
-	    tmpfile = substr(ARGV[2],2); \
-	    cmd = "$(CP) " "\047" tmpfile "\047" " $@.tmp"; \
-	    system(cmd); \
-	}' -- @$@.tmp)
 	$(SED) -e '1s/^/[\$(NEWLINE)/' -e '$(DOLLAR)s/,\s\{0,\}$(DOLLAR)/\$(NEWLINE)]/' $@.tmp > $@
 	$(RM) $@.tmp
 

make/CompileDemos.gmk

@@ -52,7 +52,6 @@ TARGETS =
 # READMEs and other files.
 
 DEMO_SHARE_SRC := $(TOPDIR)/src/demo/share
-GLOBAL_VERSION_INFO_RESOURCE := $(TOPDIR)/src/java.base/windows/native/common/version.rc
 
 DEMO_MANIFEST := $(SUPPORT_OUTPUTDIR)/demos/java-main-manifest.mf
 

make/CompileInterimLangtools.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2014, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -49,8 +49,8 @@ TARGETS += $(patsubst %, $(BUILDTOOLS_OUTPUTDIR)/gensrc/%/module-info.java, \
     $(INTERIM_LANGTOOLS_MODULES))
 
 $(eval $(call SetupCopyFiles, COPY_PREVIEW_FEATURES, \
-    FILES := $(TOPDIR)/src/java.base/share/classes/jdk/internal/PreviewFeature.java, \
-    DEST := $(BUILDTOOLS_OUTPUTDIR)/gensrc/java.base.interim/jdk/internal/, \
+    FILES := $(TOPDIR)/src/java.base/share/classes/jdk/internal/javac/PreviewFeature.java, \
+    DEST := $(BUILDTOOLS_OUTPUTDIR)/gensrc/java.base.interim/jdk/internal/javac/, \
 ))
 
 TARGETS += $(COPY_PREVIEW_FEATURES)
@@ -74,15 +74,15 @@ define SetupInterimModule
       EXCLUDE_FILES := $(TOPDIR)/src/$1/share/classes/module-info.java \
           Standard.java, \
       EXTRA_FILES := $(BUILDTOOLS_OUTPUTDIR)/gensrc/$1.interim/module-info.java, \
-      COPY := .gif .png .xml .css .js javax.tools.JavaCompilerTool, \
+      COPY := .gif .png .xml .css .js .js.template .txt javax.tools.JavaCompilerTool, \
       BIN := $(BUILDTOOLS_OUTPUTDIR)/interim_langtools_modules/$1.interim, \
       DISABLED_WARNINGS := module options, \
       JAVAC_FLAGS := \
           --module-path $(BUILDTOOLS_OUTPUTDIR)/interim_langtools_modules \
           $$(INTERIM_LANGTOOLS_ADD_EXPORTS) \
           --patch-module java.base=$(BUILDTOOLS_OUTPUTDIR)/gensrc/java.base.interim \
-          --add-exports java.base/jdk.internal=java.compiler.interim \
-          --add-exports java.base/jdk.internal=jdk.compiler.interim, \
+          --add-exports java.base/jdk.internal.javac=java.compiler.interim \
+          --add-exports java.base/jdk.internal.javac=jdk.compiler.interim, \
   ))
 
   $1_DEPS_INTERIM := $$(addsuffix .interim, $$(filter \

make/CompileJavaModules.gmk

@@ -31,506 +31,6 @@ include MakeBase.gmk
 include Modules.gmk
 include JavaCompilation.gmk
 
-# Hook to include the corresponding custom file, if present.
-$(eval $(call IncludeCustomExtension, CompileJavaModules.gmk))
-
-################################################################################
-# Module specific build settings
-
-java.base_DOCLINT += -Xdoclint:all/protected,-reference,-accessibility \
-    '-Xdoclint/package:java.*,javax.*'
-java.base_JAVAC_FLAGS += -XDstringConcat=inline
-java.base_COPY += .icu .dat .spp .nrm content-types.properties \
-    hijrah-config-Hijrah-umalqura_islamic-umalqura.properties
-java.base_CLEAN += intrinsic.properties
-
-java.base_EXCLUDE_FILES += \
-  $(TOPDIR)/src/java.base/share/classes/jdk/internal/module/ModuleLoaderMap.java
-
-java.base_EXCLUDES += java/lang/doc-files
-
-# Exclude BreakIterator classes that are just used in compile process to generate
-# data files and shouldn't go in the product
-java.base_EXCLUDE_FILES += sun/text/resources/BreakIteratorRules.java
-
-ifeq ($(call isTargetOs, macosx aix), false)
-  java.base_EXCLUDE_FILES += sun/nio/fs/PollingWatchService.java
-endif
-
-ifeq ($(call isTargetOs, windows), true)
-  java.base_EXCLUDE_FILES += \
-      sun/nio/ch/SimpleAsynchronousFileChannelImpl.java \
-      #
-endif
-
-################################################################################
-
-java.compiler_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.datatransfer_DOCLINT += -Xdoclint:all/protected,-reference \
-    '-Xdoclint/package:java.*,javax.*'
-java.datatransfer_COPY += flavormap.properties
-
-################################################################################
-
-java.desktop_DOCLINT += -Xdoclint:all/protected,-reference \
-    '-Xdoclint/package:java.*,javax.*'
-java.desktop_COPY += .gif .png .wav .txt .xml .css .pf
-java.desktop_CLEAN += iio-plugin.properties cursors.properties
-
-java.desktop_EXCLUDES += \
-    java/awt/doc-files \
-    javax/swing/doc-files \
-    javax/swing/text/doc-files \
-    javax/swing/plaf/synth/doc-files \
-    javax/swing/undo/doc-files \
-    sun/awt/X11/doc-files \
-    #
-
-java.desktop_EXCLUDE_FILES += \
-    javax/swing/plaf/nimbus/InternalFrameTitlePanePainter.java \
-    javax/swing/plaf/nimbus/OptionPaneMessageAreaPainter.java \
-    javax/swing/plaf/nimbus/ScrollBarPainter.java \
-    javax/swing/plaf/nimbus/SliderPainter.java \
-    javax/swing/plaf/nimbus/SpinnerPainter.java \
-    javax/swing/plaf/nimbus/SplitPanePainter.java \
-    javax/swing/plaf/nimbus/TabbedPanePainter.java \
-    sun/awt/resources/security-icon-bw16.png \
-    sun/awt/resources/security-icon-bw24.png \
-    sun/awt/resources/security-icon-bw32.png \
-    sun/awt/resources/security-icon-bw48.png \
-    sun/awt/resources/security-icon-interim16.png \
-    sun/awt/resources/security-icon-interim24.png \
-    sun/awt/resources/security-icon-interim32.png \
-    sun/awt/resources/security-icon-interim48.png \
-    sun/awt/resources/security-icon-yellow16.png \
-    sun/awt/resources/security-icon-yellow24.png \
-    sun/awt/resources/security-icon-yellow32.png \
-    sun/awt/resources/security-icon-yellow48.png \
-    sun/awt/X11/java-icon16.png \
-    sun/awt/X11/java-icon24.png \
-    sun/awt/X11/java-icon32.png \
-    sun/awt/X11/java-icon48.png \
-    .template \
-    #
-
-ifeq ($(call isTargetOs, macosx), true)
-  # exclude all X11 on Mac.
-  java.desktop_EXCLUDES += \
-      sun/awt/X11 \
-      sun/java2d/x11 \
-      sun/java2d/jules \
-      sun/java2d/xr \
-      com/sun/java/swing/plaf/gtk \
-      #
-  java.desktop_EXCLUDE_FILES += \
-      $(wildcard $(TOPDIR)/src/java.desktop/unix/classes/sun/java2d/*.java) \
-      $(wildcard $(TOPDIR)/src/java.desktop/unix/classes/sun/java2d/opengl/*.java) \
-      $(wildcard $(TOPDIR)/src/java.desktop/unix/classes/sun/awt/*.java) \
-      $(wildcard $(TOPDIR)/src/java.desktop/unix/classes/sun/font/*.java) \
-      #
-else
-  # TBD: figure out how to eliminate this long list
-  java.desktop_EXCLUDE_FILES += \
-      sun/awt/X11/ScreenFormat.java \
-      sun/awt/X11/XArc.java \
-      sun/awt/X11/XChar2b.java \
-      sun/awt/X11/XCharStruct.java \
-      sun/awt/X11/XClassHint.java \
-      sun/awt/X11/XComposeStatus.java \
-      sun/awt/X11/XExtCodes.java \
-      sun/awt/X11/XFontProp.java \
-      sun/awt/X11/XFontSetExtents.java \
-      sun/awt/X11/XFontStruct.java \
-      sun/awt/X11/XGCValues.java \
-      sun/awt/X11/XHostAddress.java \
-      sun/awt/X11/XIMCallback.java \
-      sun/awt/X11/XIMHotKeyTrigger.java \
-      sun/awt/X11/XIMHotKeyTriggers.java \
-      sun/awt/X11/XIMPreeditCaretCallbackStruct.java \
-      sun/awt/X11/XIMPreeditDrawCallbackStruct.java \
-      sun/awt/X11/XIMPreeditStateNotifyCallbackStruct.java \
-      sun/awt/X11/XIMStatusDrawCallbackStruct.java \
-      sun/awt/X11/XIMStringConversionCallbackStruct.java \
-      sun/awt/X11/XIMStringConversionText.java \
-      sun/awt/X11/XIMStyles.java \
-      sun/awt/X11/XIMText.java \
-      sun/awt/X11/XIMValuesList.java \
-      sun/awt/X11/XImage.java \
-      sun/awt/X11/XKeyboardControl.java \
-      sun/awt/X11/XKeyboardState.java \
-      sun/awt/X11/XOMCharSetList.java \
-      sun/awt/X11/XOMFontInfo.java \
-      sun/awt/X11/XOMOrientation.java \
-      sun/awt/X11/XPoint.java \
-      sun/awt/X11/XRectangle.java \
-      sun/awt/X11/XSegment.java \
-      sun/awt/X11/XStandardColormap.java \
-      sun/awt/X11/XTextItem.java \
-      sun/awt/X11/XTextItem16.java \
-      sun/awt/X11/XTextProperty.java \
-      sun/awt/X11/XTimeCoord.java \
-      sun/awt/X11/XWindowChanges.java \
-      sun/awt/X11/XdbeSwapInfo.java \
-      sun/awt/X11/XmbTextItem.java \
-      sun/awt/X11/XwcTextItem.java
-endif
-
-ifeq ($(call isTargetOs, windows), true)
-  java.desktop_EXCLUDES += com/sun/java/swing/plaf/gtk
-endif
-
-ifdef BUILD_HEADLESS_ONLY
-  java.desktop_EXCLUDES += sun/applet
-endif
-
-ifeq ($(call isTargetOs, windows macosx), false)
-  java.desktop_EXCLUDE_FILES += sun/awt/AWTCharset.java
-endif
-
-# These files do not appear in the build result of the old build. This
-# is because they are generated sources, but the AUTO_JAVA_FILES won't
-# pick them up since they aren't generated when the source dirs are
-# searched and they aren't referenced by any other classes so they won't
-# be picked up by implicit compilation. On a rebuild, they are picked up
-# and compiled. Exclude them here to produce the same rt.jar as the old
-# build does when building just once.
-java.desktop_EXCLUDE_FILES += \
-    javax/swing/plaf/nimbus/InternalFrameTitlePanePainter.java \
-    javax/swing/plaf/nimbus/OptionPaneMessageAreaPainter.java \
-    javax/swing/plaf/nimbus/ScrollBarPainter.java \
-    javax/swing/plaf/nimbus/SliderPainter.java \
-    javax/swing/plaf/nimbus/SpinnerPainter.java \
-    javax/swing/plaf/nimbus/SplitPanePainter.java \
-    javax/swing/plaf/nimbus/TabbedPanePainter.java \
-    #
-
-################################################################################
-
-java.scripting_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:java.*,javax.*'
-java.scripting_COPY += .js
-java.scripting_CLEAN += .properties
-
-################################################################################
-
-java.instrument_DOCLINT += -Xdoclint:all/protected,-accessibility \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.logging_DOCLINT += -Xdoclint:all/protected,-reference,-accessibility \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.management_DOCLINT += -Xdoclint:all/protected,-reference,-accessibility \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.management.rmi_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:javax.*'
-
-################################################################################
-
-java.prefs_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.transaction.xa_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:javax.*'
-
-################################################################################
-
-java.sql_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.sql.rowset_DOCLINT += -Xdoclint:all/protected,-accessibility \
-    '-Xdoclint/package:java.*,javax.*'
-java.sql.rowset_CLEAN_FILES += $(wildcard \
-    $(TOPDIR)/src/java.sql.rowset/share/classes/com/sun/rowset/*.properties \
-    $(TOPDIR)/src/java.sql.rowset/share/classes/javax/sql/rowset/*.properties)
-
-################################################################################
-
-java.rmi_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:java.*,javax.*'
-java.rmi_CLEAN_FILES += $(wildcard \
-    $(TOPDIR)/src/java.rmi/share/classes/sun/rmi/registry/resources/*.properties \
-    $(TOPDIR)/src/java.rmi/share/classes/sun/rmi/server/resources/*.properties)
-
-################################################################################
-
-java.xml_DOCLINT += -Xdoclint:all/protected,-accessibility \
-    '-Xdoclint/package:$(call CommaList, javax.xml.catalog javax.xml.datatype \
-    javax.xml.transform javax.xml.validation javax.xml.xpath)'
-java.xml_CLEAN += .properties
-
-################################################################################
-
-java.naming_DOCLINT += -Xdoclint:all/protected,-accessibility \
-    '-Xdoclint/package:java.*,javax.*'
-java.naming_CLEAN += jndiprovider.properties
-
-################################################################################
-
-java.security.jgss_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.smartcardio_DOCLINT += -Xdoclint:all/protected,-accessibility \
-    '-Xdoclint/package:java.*,javax.*'
-
-################################################################################
-
-java.xml.crypto_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:java.*,javax.*'
-java.xml.crypto_COPY += .dtd .xml
-java.xml.crypto_CLEAN += .properties
-
-################################################################################
-
-jdk.charsets_COPY += .dat
-
-################################################################################
-
-################################################################################
-
-jdk.compiler_DOCLINT += -Xdoclint:all/protected \
-    '-Xdoclint/package:-com.sun.tools.*,-jdk.internal.*,sun.tools.serialver.resources.*'
-jdk.compiler_JAVAC_FLAGS += -XDstringConcat=inline
-jdk.compiler_CLEAN_FILES += $(wildcard \
-    $(patsubst %, $(TOPDIR)/src/jdk.compiler/share/classes/%/*.properties, \
-        sun/tools/serialver/resources))
-
-################################################################################
-
-jdk.hotspot.agent_DISABLED_WARNINGS += rawtypes serial cast static overrides \
-    fallthrough
-jdk.hotspot.agent_COPY += .gif .png .properties
-
-################################################################################
-
-jdk.editpad_COPY += .properties
-
-################################################################################
-
-jdk.jshell_COPY += .jsh .properties
-
-################################################################################
-
-jdk.internal.le_COPY += .properties .caps .txt
-
-################################################################################
-
-jdk.internal.opt_COPY += .properties
-
-################################################################################
-
-jdk.jcmd_COPY += _options
-
-################################################################################
-
-jdk.dynalink_CLEAN += .properties
-
-################################################################################
-
-jdk.javadoc_COPY += .xml .css .js .png
-
-################################################################################
-
-jdk.jartool_JAVAC_FLAGS += -XDstringConcat=inline
-
-################################################################################
-
-# No SCTP implementation on Mac OS X or AIX. These classes should be excluded.
-SCTP_IMPL_CLASSES = \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/AssociationChange.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/AssociationImpl.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/PeerAddrChange.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/ResultContainer.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpChannelImpl.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpMultiChannelImpl.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpNet.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpNotification.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpServerChannelImpl.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SendFailed.java \
-    $(TOPDIR)/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/Shutdown.java
-
-ifeq ($(call isTargetOs, macosx), true)
-  jdk.sctp_EXCLUDE_FILES += $(SCTP_IMPL_CLASSES)
-endif
-
-ifeq ($(call isTargetOs, aix), true)
-  jdk.sctp_EXCLUDE_FILES += $(SCTP_IMPL_CLASSES)
-endif
-
-################################################################################
-
-jdk.incubator.jpackage_COPY += .gif .png .txt .spec .script .prerm .preinst \
-    .postrm .postinst .list .sh .desktop .copyright .control .plist .template \
-    .icns .scpt .wxs .wxl .wxi .ico .bmp .tiff
-
-jdk.incubator.jpackage_CLEAN += .properties
-
-################################################################################
-
-jdk.jconsole_COPY += .gif .png
-
-jdk.jconsole_CLEAN_FILES += $(wildcard \
-    $(TOPDIR)/src/jdk.jconsole/share/classes/sun/tools/jconsole/resources/*.properties)
-
-################################################################################
-
-jdk.jdeps_COPY += .txt
-
-jdk.jdeps_CLEAN_FILES += $(wildcard \
-    $(TOPDIR)/src/jdk.jdeps/share/classes/com/sun/tools/jdeps/resources/*.properties \
-    $(TOPDIR)/src/jdk.jdeps/share/classes/com/sun/tools/javap/resources/*.properties)
-
-################################################################################
-
-jdk.jdi_EXCLUDES += \
-    com/sun/tools/example/debug/bdi \
-    com/sun/tools/example/debug/event \
-    com/sun/tools/example/debug/gui \
-    com/sun/jdi/doc-files \
-    #
-
-jdk.jdi_EXCLUDE_FILES += jdi-overview.html
-
-################################################################################
-
-jdk.dev_CLEAN_FILES += $(wildcard \
-    $(patsubst %, $(TOPDIR)/src/jdk.dev/share/classes/%/*.properties, \
-        com/sun/tools/script/shell))
-
-jdk.dev_COPY += .js oqlhelp.html .txt
-
-################################################################################
-
-jdk.internal.jvmstat_COPY += aliasmap
-
-################################################################################
-
-# -parameters provides method's parameters information in class file,
-# JVMCI compilers make use of that information for various sanity checks.
-# Don't use Indy strings concatenation to have good JVMCI startup performance.
-# The exports are needed since JVMCI is dynamically exported (see
-# jdk.vm.ci.services.internal.ReflectionAccessJDK::openJVMCITo).
-
-jdk.internal.vm.ci_JAVAC_FLAGS += -parameters -XDstringConcat=inline
-
-################################################################################
-
-jdk.internal.vm.compiler_JAVAC_FLAGS += -parameters -XDstringConcat=inline \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.aarch64=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.amd64=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.code=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.code.site=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.code.stack=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.common=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.hotspot=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.hotspot.aarch64=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.hotspot.amd64=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.meta=jdk.internal.vm.compiler \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.runtime=jdk.internal.vm.compiler \
-    #
-
-jdk.internal.vm.compiler_EXCLUDES += \
-    jdk.internal.vm.compiler.collections.test \
-    jdk.tools.jaotc.test \
-    org.graalvm.compiler.api.directives.test \
-    org.graalvm.compiler.api.test \
-    org.graalvm.compiler.asm.aarch64.test \
-    org.graalvm.compiler.asm.amd64.test \
-    org.graalvm.compiler.asm.test \
-    org.graalvm.compiler.core.aarch64.test \
-    org.graalvm.compiler.core.amd64.test \
-    org.graalvm.compiler.core.jdk9.test \
-    org.graalvm.compiler.core.match.processor \
-    org.graalvm.compiler.core.test \
-    org.graalvm.compiler.debug.test \
-    org.graalvm.compiler.graph.test \
-    org.graalvm.compiler.hotspot.aarch64.test \
-    org.graalvm.compiler.hotspot.amd64.test \
-    org.graalvm.compiler.hotspot.jdk15.test \
-    org.graalvm.compiler.hotspot.jdk9.test \
-    org.graalvm.compiler.hotspot.lir.test \
-    org.graalvm.compiler.hotspot.test \
-    org.graalvm.compiler.jtt \
-    org.graalvm.compiler.lir.jtt \
-    org.graalvm.compiler.lir.test \
-    org.graalvm.compiler.loop.test \
-    org.graalvm.compiler.microbenchmarks \
-    org.graalvm.compiler.nodeinfo.processor \
-    org.graalvm.compiler.nodes.test \
-    org.graalvm.compiler.options.processor \
-    org.graalvm.compiler.options.test \
-    org.graalvm.compiler.phases.common.test \
-    org.graalvm.compiler.processor \
-    org.graalvm.compiler.replacements.jdk12.test \
-    org.graalvm.compiler.replacements.jdk9.test \
-    org.graalvm.compiler.replacements.processor \
-    org.graalvm.compiler.replacements.test \
-    org.graalvm.compiler.serviceprovider.processor \
-    org.graalvm.compiler.test \
-    org.graalvm.compiler.virtual.bench \
-    org.graalvm.micro.benchmarks \
-    org.graalvm.util.test \
-    #
-
-################################################################################
-
-# -parameters provides method's parameters information in class file,
-# JVMCI compilers make use of that information for various sanity checks.
-# Don't use Indy strings concatenation to have good JAOTC startup performance.
-# The exports are needed since JVMCI is dynamically exported (see
-# jdk.vm.ci.services.internal.ReflectionAccessJDK::openJVMCITo).
-
-jdk.aot_JAVAC_FLAGS += -parameters -XDstringConcat=inline \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.aarch64=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.amd64=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.code=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.code.site=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.code.stack=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.common=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.hotspot=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.hotspot.aarch64=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.hotspot.amd64=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.meta=jdk.internal.vm.compiler,jdk.aot \
-    --add-exports jdk.internal.vm.ci/jdk.vm.ci.runtime=jdk.internal.vm.compiler,jdk.aot \
-    #
-
-jdk.aot_EXCLUDES += \
-    jdk.tools.jaotc.test
-    #
-
-################################################################################
-
-sun.charsets_COPY += .dat
-
-################################################################################
-
-jdk.localedata_COPY += _dict _th
-# Exclude BreakIterator classes that are just used in compile process to generate
-# data files and shouldn't go in the product
-jdk.localedata_EXCLUDE_FILES += sun/text/resources/ext/BreakIteratorRules_th.java
-jdk.localedata_KEEP_ALL_TRANSLATIONS := true
-################################################################################
-
-jdk.jfr_DISABLED_WARNINGS += exports
-jdk.jfr_COPY := .xsd .xml .dtd
-jdk.jfr_JAVAC_FLAGS := -XDstringConcat=inline
-
 ################################################################################
 # If this is an imported module that has prebuilt classes, only compile
 # module-info.java.
@@ -567,60 +67,8 @@ MODULESOURCEPATH := $(call GetModuleSrcPath)
 # Add imported modules to the modulepath
 MODULEPATH := $(call PathList, $(IMPORT_MODULES_CLASSES))
 
-ifeq ($(MODULE), jdk.internal.vm.ci)
-  ## WORKAROUND jdk.internal.vm.ci source structure issue
-  JVMCI_MODULESOURCEPATH := $(MODULESOURCEPATH) \
-      $(subst /$(MODULE)/,/*/, $(filter-out %processor/src, \
-          $(wildcard $(TOPDIR)/src/$(MODULE)/share/classes/*/src)))
-  MODULESOURCEPATH := $(call PathList, $(JVMCI_MODULESOURCEPATH))
-endif
-
-ifeq ($(MODULE), jdk.internal.vm.compiler)
-  ## WORKAROUND jdk.internal.vm.compiler source structure issue
-  VM_COMPILER_MODULESOURCEPATH := $(MODULESOURCEPATH) \
-      $(subst /$(MODULE)/,/*/, $(filter-out %processor/src %test/src %jtt/src %bench/src %microbenchmarks/src, \
-          $(wildcard $(TOPDIR)/src/$(MODULE)/share/classes/*/src)))
-  MODULESOURCEPATH := $(call PathList, $(VM_COMPILER_MODULESOURCEPATH))
-endif
-
-ifeq ($(MODULE), jdk.aot)
-  ## WORKAROUND jdk.aot source structure issue
-  AOT_MODULESOURCEPATH := $(MODULESOURCEPATH) \
-      $(subst /$(MODULE)/,/*/, $(filter-out %processor/src, \
-          $(wildcard $(TOPDIR)/src/$(MODULE)/share/classes/*/src)))
-  MODULESOURCEPATH := $(call PathList, $(AOT_MODULESOURCEPATH))
-endif
-
-$(eval $(call SetupJavaCompilation, $(MODULE), \
-    SMALL_JAVA := false, \
-    MODULE := $(MODULE), \
-    SRC := $(wildcard $(MODULE_SRC_DIRS)), \
-    INCLUDES := $(JDK_USER_DEFINED_FILTER), \
-    FAIL_NO_SRC := $(FAIL_NO_SRC), \
-    BIN := $(if $($(MODULE)_BIN), $($(MODULE)_BIN), $(JDK_OUTPUTDIR)/modules), \
-    HEADERS := $(SUPPORT_OUTPUTDIR)/headers, \
-    CREATE_API_DIGEST := true, \
-    JAVAC_FLAGS := \
-        $($(MODULE)_DOCLINT) \
-        $($(MODULE)_JAVAC_FLAGS) \
-        --module-source-path $(MODULESOURCEPATH) \
-        --module-path $(MODULEPATH) \
-        --system none, \
-))
-
-TARGETS += $($(MODULE)) $($(MODULE)_COPY_EXTRA)
-
-# Declare dependencies between java compilations of different modules.
-# Since the other modules are declared in different invocations of this file,
-# use the macro to find the correct target file to depend on.
-# Only the javac compilation actually depends on other modules so limit
-# dependency declaration to that by using the *_COMPILE_TARGET variable.
-$($(MODULE)_COMPILE_TARGET): $(foreach d, $(call FindDepsForModule, $(MODULE)), \
-    $(call SetupJavaCompilationApiTarget, $d, \
-        $(if $($d_BIN), $($d_BIN), $(JDK_OUTPUTDIR)/modules/$d)))
-
 ################################################################################
-# Copy zh_HK properties files from zh_TW
+# Copy zh_HK properties files from zh_TW (needed by some modules)
 
 $(JDK_OUTPUTDIR)/modules/%_zh_HK.properties: $(JDK_OUTPUTDIR)/modules/%_zh_TW.properties
 	$(install-file)
@@ -635,13 +83,48 @@ CreateHkTargets = \
        .properties \
     )
 
-ifeq ($(MODULE), java.sql.rowset)
-  TARGETS += $(call CreateHkTargets, $(java.sql.rowset_CLEAN_FILES))
-endif
+################################################################################
+# Include module specific build settings
 
-ifeq ($(MODULE), java.rmi)
-  TARGETS += $(call CreateHkTargets, $(java.rmi_CLEAN_FILES))
-endif
+-include Java.gmk
+
+################################################################################
+# Setup the main compilation
+
+$(eval $(call SetupJavaCompilation, $(MODULE), \
+    SMALL_JAVA := false, \
+    MODULE := $(MODULE), \
+    SRC := $(wildcard $(MODULE_SRC_DIRS)), \
+    INCLUDES := $(JDK_USER_DEFINED_FILTER), \
+    FAIL_NO_SRC := $(FAIL_NO_SRC), \
+    BIN := $(if $($(MODULE)_BIN), $($(MODULE)_BIN), $(JDK_OUTPUTDIR)/modules), \
+    HEADERS := $(SUPPORT_OUTPUTDIR)/headers, \
+    CREATE_API_DIGEST := true, \
+    CLEAN := $(CLEAN), \
+    CLEAN_FILES := $(CLEAN_FILES), \
+    COPY := $(COPY), \
+    DISABLED_WARNINGS := $(DISABLED_WARNINGS_java), \
+    EXCLUDES := $(EXCLUDES), \
+    EXCLUDE_FILES := $(EXCLUDE_FILES), \
+    KEEP_ALL_TRANSLATIONS := $(KEEP_ALL_TRANSLATIONS), \
+    JAVAC_FLAGS := \
+        $(DOCLINT) \
+        $(JAVAC_FLAGS) \
+        --module-source-path $(MODULESOURCEPATH) \
+        --module-path $(MODULEPATH) \
+        --system none, \
+))
+
+TARGETS += $($(MODULE))
+
+# Declare dependencies between java compilations of different modules.
+# Since the other modules are declared in different invocations of this file,
+# use the macro to find the correct target file to depend on.
+# Only the javac compilation actually depends on other modules so limit
+# dependency declaration to that by using the *_COMPILE_TARGET variable.
+$($(MODULE)_COMPILE_TARGET): $(foreach d, $(call FindDepsForModule, $(MODULE)), \
+    $(call SetupJavaCompilationApiTarget, $d, \
+        $(if $($d_BIN), $($d_BIN), $(JDK_OUTPUTDIR)/modules/$d)))
 
 ################################################################################
 # If this is an imported module, copy the pre built classes and resources into
@@ -665,10 +148,6 @@ endif
 
 ################################################################################
 
-$(eval $(call IncludeCustomExtension, CompileJavaModules-post.gmk))
-
-################################################################################
-
 all: $(TARGETS)
 
 .PHONY: all

make/CompileModuleTools.gmk

@@ -33,8 +33,20 @@ include JavaCompilation.gmk
 
 TOOLS_CLASSES_DIR := $(BUILDTOOLS_OUTPUTDIR)/tools_jigsaw_classes
 
+# When using an external BUILDJDK, make it possible to shortcut building of
+# these tools using the BUILD_JAVAC instead of having to build the complete
+# exploded image first.
+ifeq ($(EXTERNAL_BUILDJDK), true)
+  COMPILER := buildjdk
+  TARGET_RELEASE := $(TARGET_RELEASE_NEWJDK)
+else
+  COMPILER := interim
+  TARGET_RELEASE := $(TARGET_RELEASE_NEWJDK_UPGRADED)
+endif
+
 $(eval $(call SetupJavaCompilation, BUILD_JIGSAW_TOOLS, \
-    TARGET_RELEASE := $(TARGET_RELEASE_NEWJDK_UPGRADED), \
+    TARGET_RELEASE := $(TARGET_RELEASE), \
+    COMPILER := $(COMPILER), \
     SRC := $(TOPDIR)/make/jdk/src/classes, \
     INCLUDES := build/tools/deps \
                 build/tools/docs \

make/CompileToolsHotspot.gmk

@@ -52,94 +52,6 @@ $(eval $(call SetupJavaCompilation, BUILD_TOOLS_HOTSPOT, \
 TARGETS += $(BUILD_TOOLS_HOTSPOT)
 
 
-################################################################################
-# Graal build tools
-ifeq ($(INCLUDE_GRAAL), true)
-  VM_CI_SRC_DIR := $(TOPDIR)/src/jdk.internal.vm.ci/share/classes
-
-  SRC_DIR := $(TOPDIR)/src/jdk.internal.vm.compiler/share/classes
-
-  ##############################################################################
-  # Compile the annotation processors
-  $(eval $(call SetupJavaCompilation, BUILD_VM_COMPILER_MATCH_PROCESSOR, \
-      TARGET_RELEASE := $(TARGET_RELEASE_BOOTJDK), \
-      SRC := \
-          $(SRC_DIR)/org.graalvm.compiler.processor/src \
-          $(SRC_DIR)/org.graalvm.compiler.core.match.processor/src \
-          , \
-      EXCLUDE_FILES := $(EXCLUDE_FILES), \
-      BIN := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.match.processor, \
-      JAR := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.match.processor.jar, \
-      DISABLED_WARNINGS := options, \
-  ))
-
-  TARGETS += $(BUILD_VM_COMPILER_MATCH_PROCESSOR)
-
-  ##############################################################################
-
-  $(eval $(call SetupJavaCompilation, BUILD_VM_COMPILER_NODEINFO_PROCESSOR, \
-      TARGET_RELEASE := $(TARGET_RELEASE_BOOTJDK), \
-      SRC := \
-          $(SRC_DIR)/org.graalvm.compiler.processor/src \
-          $(SRC_DIR)/org.graalvm.compiler.nodeinfo.processor/src \
-          , \
-      BIN := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.nodeinfo.processor, \
-      JAR := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.nodeinfo.processor.jar, \
-      DISABLED_WARNINGS := options, \
-  ))
-
-  TARGETS += $(BUILD_VM_COMPILER_NODEINFO_PROCESSOR)
-
-  ##############################################################################
-
-  $(eval $(call SetupJavaCompilation, BUILD_VM_COMPILER_OPTIONS_PROCESSOR, \
-      TARGET_RELEASE := $(TARGET_RELEASE_BOOTJDK), \
-      DISABLED_WARNINGS := options, \
-      SRC := \
-          $(SRC_DIR)/org.graalvm.compiler.processor/src \
-          $(SRC_DIR)/org.graalvm.compiler.options.processor/src \
-          , \
-      BIN := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.options.processor, \
-      JAR := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.options.processor.jar, \
-  ))
-
-  TARGETS += $(BUILD_VM_COMPILER_OPTIONS_PROCESSOR)
-
-  ##############################################################################
-
-  $(eval $(call SetupJavaCompilation, BUILD_VM_COMPILER_REPLACEMENTS_PROCESSOR, \
-      TARGET_RELEASE := $(TARGET_RELEASE_BOOTJDK), \
-      SRC := \
-          $(SRC_DIR)/org.graalvm.compiler.processor/src \
-          $(SRC_DIR)/org.graalvm.compiler.replacements.processor/src \
-          , \
-      EXCLUDE_FILES := $(EXCLUDE_FILES), \
-      BIN := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.replacements.verifier, \
-      JAR := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.replacements.verifier.jar, \
-      DISABLED_WARNINGS := options, \
-  ))
-
-  TARGETS += $(BUILD_VM_COMPILER_REPLACEMENTS_PROCESSOR)
-
-  ##############################################################################
-
-  $(eval $(call SetupJavaCompilation, BUILD_VM_COMPILER_SERVICEPROVIDER_PROCESSOR, \
-      TARGET_RELEASE := $(TARGET_RELEASE_BOOTJDK), \
-      SRC := \
-          $(SRC_DIR)/org.graalvm.compiler.processor/src \
-          $(SRC_DIR)/org.graalvm.compiler.serviceprovider.processor/src \
-          , \
-      EXCLUDE_FILES := $(EXCLUDE_FILES), \
-      BIN := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.serviceprovider.processor, \
-      JAR := $(BUILDTOOLS_OUTPUTDIR)/jdk.vm.compiler.serviceprovider.processor.jar, \
-      DISABLED_WARNINGS := options, \
-  ))
-
-  TARGETS += $(BUILD_VM_COMPILER_SERVICEPROVIDER_PROCESSOR)
-
-  ##############################################################################
-endif
-
 all: $(TARGETS)
 
 .PHONY: all

make/CompileToolsJdk.gmk

@@ -56,7 +56,8 @@ $(eval $(call SetupJavaCompilation, BUILD_TOOLS_JDK, \
     DISABLED_WARNINGS := options, \
     JAVAC_FLAGS := \
         --add-exports java.desktop/sun.awt=ALL-UNNAMED \
-        --add-exports java.base/sun.text=ALL-UNNAMED, \
+        --add-exports java.base/sun.text=ALL-UNNAMED \
+        --add-exports java.base/sun.security.util=ALL-UNNAMED, \
 ))
 
 TARGETS += $(BUILD_TOOLS_JDK)

make/Docs.gmk

@@ -1,4 +1,4 @@
-# Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -57,14 +57,11 @@ $(eval $(call IncludeCustomExtension, Docs.gmk))
 ################################################################################
 # Javadoc settings
 
+# Include configuration for URLs in generated javadoc
+include $(TOPDIR)/make/conf/javadoc.conf
+
 MODULES_SOURCE_PATH := $(call PathList, $(call GetModuleSrcPath) )
 
-# URLs
-JAVADOC_BASE_URL := https://docs.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_NUMBER)&id=homepage
-BUG_SUBMIT_URL := https://bugreport.java.com/bugreport/
-COPYRIGHT_URL := legal/copyright.html
-LICENSE_URL := https://www.oracle.com/java/javase/terms/license/java$(VERSION_NUMBER)speclicense.html
-REDISTRIBUTION_URL := https://www.oracle.com/technetwork/java/redist-137594.html
 
 # In order to get a specific ordering it's necessary to specify the total
 # ordering of tags as the tags are otherwise ordered in order of definition.
@@ -92,7 +89,6 @@ JAVADOC_TAGS := \
     -tag see \
     -taglet build.tools.taglet.ExtLink \
     -taglet build.tools.taglet.Incubating \
-    -taglet build.tools.taglet.Preview \
     -tagletpath $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
     $(CUSTOM_JAVADOC_TAGS) \
     #
@@ -103,7 +99,8 @@ JAVADOC_TAGS := \
 REFERENCE_TAGS := $(JAVADOC_TAGS)
 
 # Which doclint checks to ignore
-JAVADOC_DISABLED_DOCLINT := accessibility html missing syntax reference
+JAVADOC_DISABLED_DOCLINT_WARNINGS := missing
+JAVADOC_DISABLED_DOCLINT_PACKAGES := org.w3c.* javax.smartcardio
 
 # The initial set of options for javadoc
 JAVADOC_OPTIONS := -use -keywords -notimestamp \
@@ -157,13 +154,14 @@ COPYRIGHT_BOTTOM = \
     <a href="$(REDISTRIBUTION_URL)">documentation redistribution policy</a>. \
     $(DRAFT_MARKER_STR) <!-- Version $(VERSION_STRING) -->
 
-JAVADOC_BOTTOM := \
+# $1 - Optional "Other Versions" link
+JAVADOC_BOTTOM = \
     <a href="$(BUG_SUBMIT_URL)">Report a bug or suggest an enhancement</a><br> \
     For further API reference and developer documentation see the \
     <a href="$(JAVADOC_BASE_URL)" target="_blank">Java SE \
     Documentation</a>, which contains more detailed, \
     developer-targeted descriptions with conceptual overviews, definitions \
-    of terms, workarounds, and working code examples.<br> \
+    of terms, workarounds, and working code examples. $1<br> \
     Java is a trademark or registered trademark of $(FULL_COMPANY_NAME) in \
     the US and other countries.<br> \
     $(call COPYRIGHT_BOTTOM, {@docroot}/../)
@@ -265,6 +263,7 @@ endef
 #   SHORT_NAME - The short name of this documentation collection
 #   LONG_NAME - The long name of this documentation collection
 #   TARGET_DIR - Where to store the output
+#   OTHER_VERSIONS - URL for other page listing versions
 #
 SetupApiDocsGeneration = $(NamedParamsMacroTemplate)
 define SetupApiDocsGenerationBody
@@ -297,18 +296,26 @@ define SetupApiDocsGenerationBody
 
   # Create a string like "-Xdoclint:all,-syntax,-html,..."
   $1_OPTIONS += -Xdoclint:all,$$(call CommaList, $$(addprefix -, \
-      $$(JAVADOC_DISABLED_DOCLINT)))
+      $$(JAVADOC_DISABLED_DOCLINT_WARNINGS)))
+  # Ignore the doclint warnings in certain packages
+  $1_OPTIONS += -Xdoclint/package:$$(call CommaList, $$(addprefix -, \
+      $$(JAVADOC_DISABLED_DOCLINT_PACKAGES)))
 
   $1_DOC_TITLE := $$($1_LONG_NAME)<br>Version $$(VERSION_SPECIFICATION) API \
       Specification
   $1_WINDOW_TITLE := $$(subst &amp;,&,$$($1_SHORT_NAME))$$(DRAFT_MARKER_TITLE)
   $1_HEADER_TITLE := <div $$(HEADER_STYLE)><strong>$$($1_SHORT_NAME)</strong> \
       $$(DRAFT_MARKER_STR)</div>
+  ifneq ($$($1_OTHER_VERSIONS), )
+      $1_JAVADOC_BOTTOM := $$(call JAVADOC_BOTTOM, <a href="$$($1_OTHER_VERSIONS)">Other versions.</a>)
+  else
+      $1_JAVADOC_BOTTOM := $$(call JAVADOC_BOTTOM, )
+  endif
 
   $1_OPTIONS += -doctitle '$$($1_DOC_TITLE)'
   $1_OPTIONS += -windowtitle '$$($1_WINDOW_TITLE)'
   $1_OPTIONS += -header '$$($1_HEADER_TITLE)'
-  $1_OPTIONS += -bottom '$$(JAVADOC_BOTTOM)'
+  $1_OPTIONS += -bottom '$$($1_JAVADOC_BOTTOM)'
   ifeq ($$(IS_DRAFT), true)
     $1_OPTIONS += -top '$$(JAVADOC_TOP)'
   endif
@@ -440,6 +447,7 @@ $(eval $(call SetupApiDocsGeneration, JDK_API, \
     SHORT_NAME := $(JDK_SHORT_NAME), \
     LONG_NAME := $(JDK_LONG_NAME), \
     TARGET_DIR := $(DOCS_OUTPUTDIR)/api, \
+    OTHER_VERSIONS := $(OTHER_JDK_VERSIONS_URL), \
 ))
 
 # Targets generated are returned in JDK_API_JAVADOC_TARGETS and
@@ -456,7 +464,7 @@ $(eval $(call SetupApiDocsGeneration, JAVASE_API, \
     MODULES := $(JAVASE_MODULES), \
     SHORT_NAME := $(JAVASE_SHORT_NAME), \
     LONG_NAME := $(JAVASE_LONG_NAME), \
-    TARGET_DIR := $(IMAGES_OUTPUTDIR)/javase-docs/api, \
+    TARGET_DIR := $(DOCS_JAVASE_IMAGE_DIR)/api, \
 ))
 
 # Targets generated are returned in JAVASE_API_JAVADOC_TARGETS and
@@ -474,8 +482,8 @@ $(eval $(call SetupApiDocsGeneration, REFERENCE_API, \
     MODULES := $(JAVASE_MODULES), \
     SHORT_NAME := $(JAVASE_SHORT_NAME), \
     LONG_NAME := $(JAVASE_LONG_NAME), \
-    TARGET_DIR := $(IMAGES_OUTPUTDIR)/reference-docs/api, \
-    JAVADOC_CMD := $(JAVADOC), \
+    TARGET_DIR := $(DOCS_REFERENCE_IMAGE_DIR)/api, \
+    JAVADOC_CMD := $(DOCS_REFERENCE_JAVADOC), \
     OPTIONS := $(REFERENCE_OPTIONS), \
     TAGS := $(REFERENCE_TAGS), \
 ))

make/GenerateLinkOptData.gmk

@@ -61,7 +61,7 @@ endif
 
 # Save the stderr output of the command and print it along with stdout in case
 # something goes wrong.
-$(CLASSLIST_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXE_SUFFIX) $(CLASSLIST_JAR)
+$(CLASSLIST_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXECUTABLE_SUFFIX) $(CLASSLIST_JAR)
 	$(call MakeDir, $(LINK_OPT_DIR))
 	$(call LogInfo, Generating $(patsubst $(OUTPUTDIR)/%, %, $@))
 	$(call LogInfo, Generating $(patsubst $(OUTPUTDIR)/%, %, $(JLI_TRACE_FILE)))
@@ -94,7 +94,7 @@ $(CLASSLIST_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXE_SUFFIX) $(CLASSLIST_JAR)
 # dependencies, make will correctly rebuild both jli trace and classlist
 # incrementally using the single recipe above.
 $(CLASSLIST_FILE): $(JLI_TRACE_FILE)
-$(JLI_TRACE_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXE_SUFFIX) $(CLASSLIST_JAR)
+$(JLI_TRACE_FILE): $(INTERIM_IMAGE_DIR)/bin/java$(EXECUTABLE_SUFFIX) $(CLASSLIST_JAR)
 
 TARGETS += $(CLASSLIST_FILE) $(JLI_TRACE_FILE)
 

make/Images.gmk

@@ -44,7 +44,7 @@ ALL_MODULES := $(call FindAllModules)
 $(eval $(call ReadImportMetaData))
 
 JRE_MODULES += $(filter $(ALL_MODULES), $(BOOT_MODULES) \
-    $(PLATFORM_MODULES) $(JRE_TOOL_MODULES))
+    $(PLATFORM_MODULES) jdk.jdwp.agent)
 JDK_MODULES += $(ALL_MODULES)
 
 JRE_MODULES_LIST := $(call CommaList, $(JRE_MODULES))
@@ -238,6 +238,7 @@ endif
 ALL_JDK_MODULES := $(JDK_MODULES)
 ALL_JRE_MODULES := $(sort $(JRE_MODULES), $(foreach m, $(JRE_MODULES), \
     $(call FindTransitiveDepsForModule, $m)))
+ALL_SYMBOLS_MODULES := $(JDK_MODULES)
 
 ifeq ($(call isTargetOs, windows), true)
   LIBS_TARGET_SUBDIR := bin
@@ -293,6 +294,7 @@ SetupCopyDebuginfo = \
 # implementation above.
 $(call SetupCopyDebuginfo,JDK)
 $(call SetupCopyDebuginfo,JRE)
+$(call SetupCopyDebuginfo,SYMBOLS)
 
 ################################################################################
 

make/Init.gmk

@@ -200,7 +200,7 @@ ifeq ($(HAS_SPEC),)
 	            COMPARE_BUILD="$(COMPARE_BUILD):NODRYRUN=true" main && \
 	        $(MAKE) $(MFLAGS) $(MAKE_LOG_FLAGS) -r -R -f $(topdir)/make/Init.gmk \
 	            SPEC=$(spec) HAS_SPEC=true ACTUAL_TOPDIR=$(topdir) \
-	            COMPARE_BUILD="$(COMPARE_BUILD)" post-compare-build && \
+	            COMPARE_BUILD="$(COMPARE_BUILD):NODRYRUN=true" post-compare-build && \
 	    ) \
 	  ) true ) \
 	  $(eval TARGET_DONE=true) \

make/InterimImage.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -32,7 +32,7 @@ include Modules.gmk
 ################################################################################
 
 # Use this file inside the image as target for make rule
-JIMAGE_TARGET_FILE := bin/java$(EXE_SUFFIX)
+JIMAGE_TARGET_FILE := bin/java$(EXECUTABLE_SUFFIX)
 
 INTERIM_MODULES_LIST := $(call CommaList, $(INTERIM_IMAGE_MODULES))
 

make/MacBundles.gmk

@@ -38,11 +38,8 @@ ifeq ($(call isTargetOs, macosx), true)
 
   MACOSX_PLIST_SRC := $(TOPDIR)/make/data/bundle
 
-  BUNDLE_ID := $(MACOSX_BUNDLE_ID_BASE).$(VERSION_SHORT)
   BUNDLE_NAME := $(MACOSX_BUNDLE_NAME_BASE) $(VERSION_SHORT)
   BUNDLE_INFO := $(MACOSX_BUNDLE_NAME_BASE) $(VERSION_STRING)
-  BUNDLE_PLATFORM_VERSION := $(VERSION_FEATURE).$(VERSION_INTERIM)
-  BUNDLE_VERSION := $(VERSION_NUMBER)
   ifeq ($(COMPANY_NAME), N/A)
     BUNDLE_VENDOR := UNDEFINED
   else
@@ -75,24 +72,26 @@ ifeq ($(call isTargetOs, macosx), true)
       SOURCE_FILES := $(MACOSX_PLIST_SRC)/JDK-Info.plist, \
       OUTPUT_FILE := $(JDK_MACOSX_CONTENTS_DIR)/Info.plist, \
       REPLACEMENTS := \
-          @@ID@@ => $(BUNDLE_ID).jdk ; \
+          @@ID@@ => $(MACOSX_BUNDLE_ID_BASE).jdk ; \
           @@NAME@@ => $(BUNDLE_NAME) ; \
           @@INFO@@ => $(BUNDLE_INFO) ; \
-          @@PLATFORM_VERSION@@ => $(BUNDLE_PLATFORM_VERSION) ; \
-          @@VERSION@@ => $(BUNDLE_VERSION) ; \
-          @@VENDOR@@ => $(BUNDLE_VENDOR) , \
+          @@VERSION@@ => $(VERSION_NUMBER) ; \
+          @@BUILD_VERSION@@ => $(MACOSX_BUNDLE_BUILD_VERSION) ; \
+          @@VENDOR@@ => $(BUNDLE_VENDOR) ; \
+          @@MACOSX_VERSION_MIN@@ => $(MACOSX_VERSION_MIN) , \
   ))
 
   $(eval $(call SetupTextFileProcessing, BUILD_JRE_PLIST, \
       SOURCE_FILES := $(MACOSX_PLIST_SRC)/JRE-Info.plist, \
       OUTPUT_FILE := $(JRE_MACOSX_CONTENTS_DIR)/Info.plist, \
       REPLACEMENTS := \
-          @@ID@@ => $(BUNDLE_ID).jre ; \
+          @@ID@@ => $(MACOSX_BUNDLE_ID_BASE).jre ; \
           @@NAME@@ => $(BUNDLE_NAME) ; \
           @@INFO@@ => $(BUNDLE_INFO) ; \
-          @@PLATFORM_VERSION@@ => $(BUNDLE_PLATFORM_VERSION) ; \
-          @@VERSION@@ => $(BUNDLE_VERSION) ; \
-          @@VENDOR@@ => $(BUNDLE_VENDOR) , \
+          @@VERSION@@ => $(VERSION_NUMBER) ; \
+          @@BUILD_VERSION@@ => $(BUNDLE_BUILD_VERSION) ; \
+          @@VENDOR@@ => $(BUNDLE_VENDOR) ; \
+          @@MACOSX_VERSION_MIN@@ => $(MACOSX_VERSION_MIN) , \
   ))
 
   $(SUPPORT_OUTPUTDIR)/images/_jdk_bundle_attribute_set: $(COPY_JDK_IMAGE)

make/Main.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -90,12 +90,13 @@ $(eval $(call SetupTarget, buildtools-jdk, \
 
 $(eval $(call SetupTarget, buildtools-modules, \
     MAKEFILE := CompileModuleTools, \
-    DEPS := exploded-image-base, \
 ))
 
+# interim-langtools is needed by hotspot only when $(INCLUDE_GRAAL) is true
+GRAAL_INTERIM_LANGTOOLS_true = interim-langtools
 $(eval $(call SetupTarget, buildtools-hotspot, \
     MAKEFILE := CompileToolsHotspot, \
-    DEPS := interim-langtools, \
+    DEPS := $(GRAAL_INTERIM_LANGTOOLS_$(INCLUDE_GRAAL)), \
 ))
 
 ################################################################################
@@ -112,7 +113,6 @@ $(eval $(call SetupTarget, generate-exported-symbols, \
 $(eval $(call DeclareRecipesForPhase, GENSRC, \
     TARGET_SUFFIX := gensrc-src, \
     FILE_PREFIX := Gensrc, \
-    MAKE_SUBDIR := gensrc, \
     CHECK_MODULES := $(ALL_MODULES), \
 ))
 
@@ -150,7 +150,6 @@ ALL_TARGETS += $(GENSRC_TARGETS)
 $(eval $(call DeclareRecipesForPhase, GENDATA, \
     TARGET_SUFFIX := gendata, \
     FILE_PREFIX := Gendata, \
-    MAKE_SUBDIR := gendata, \
     CHECK_MODULES := $(ALL_MODULES), \
 ))
 
@@ -161,7 +160,6 @@ ALL_TARGETS += $(GENDATA_TARGETS)
 $(eval $(call DeclareRecipesForPhase, COPY, \
     TARGET_SUFFIX := copy, \
     FILE_PREFIX := Copy, \
-    MAKE_SUBDIR := copy, \
     CHECK_MODULES := $(ALL_MODULES), \
 ))
 
@@ -191,6 +189,7 @@ JAVA_TARGETS := $(addsuffix -java, $(JAVA_MODULES))
 define DeclareCompileJavaRecipe
   $1-java:
 	+($(CD) $(TOPDIR)/make && $(MAKE) $(MAKE_ARGS) \
+	$(patsubst %,-I%/modules/$1,$(PHASE_MAKEDIRS)) \
 	    -f CompileJavaModules.gmk MODULE=$1)
 endef
 
@@ -203,7 +202,6 @@ ALL_TARGETS += $(JAVA_TARGETS)
 $(eval $(call DeclareRecipesForPhase, LIBS, \
     TARGET_SUFFIX := libs, \
     FILE_PREFIX := Lib, \
-    MAKE_SUBDIR := lib, \
     CHECK_MODULES := $(ALL_MODULES), \
 ))
 
@@ -216,7 +214,6 @@ ALL_TARGETS += $(LIBS_TARGETS)
 $(eval $(call DeclareRecipesForPhase, STATIC_LIBS, \
     TARGET_SUFFIX := static-libs, \
     FILE_PREFIX := Lib, \
-    MAKE_SUBDIR := lib, \
     CHECK_MODULES := $(ALL_MODULES), \
     EXTRA_ARGS := STATIC_LIBS=true, \
 ))
@@ -228,7 +225,6 @@ ALL_TARGETS += $(STATIC_LIBS_TARGETS)
 $(eval $(call DeclareRecipesForPhase, LAUNCHER, \
     TARGET_SUFFIX := launchers, \
     FILE_PREFIX := Launcher, \
-    MAKE_SUBDIR := launcher, \
     CHECK_MODULES := $(ALL_MODULES), \
 ))
 
@@ -345,7 +341,7 @@ $(eval $(call SetupTarget, test-image-demos-jdk, \
 
 $(eval $(call SetupTarget, generate-summary, \
     MAKEFILE := GenerateModuleSummary, \
-    DEPS := jmods buildtools-modules, \
+    DEPS := jmods buildtools-modules runnable-buildjdk, \
 ))
 
 ################################################################################
@@ -475,7 +471,7 @@ $(eval $(call SetupTarget, docs-jdk-api-javadoc, \
 $(eval $(call SetupTarget, docs-jdk-api-modulegraph, \
     MAKEFILE := Docs, \
     TARGET := docs-jdk-api-modulegraph, \
-    DEPS := exploded-image buildtools-modules, \
+    DEPS := buildtools-modules runnable-buildjdk, \
 ))
 
 $(eval $(call SetupTarget, docs-javase-api-javadoc, \
@@ -486,7 +482,7 @@ $(eval $(call SetupTarget, docs-javase-api-javadoc, \
 $(eval $(call SetupTarget, docs-javase-api-modulegraph, \
     MAKEFILE := Docs, \
     TARGET := docs-javase-api-modulegraph, \
-    DEPS := exploded-image buildtools-modules, \
+    DEPS := buildtools-modules runnable-buildjdk, \
 ))
 
 $(eval $(call SetupTarget, docs-reference-api-javadoc, \
@@ -497,7 +493,7 @@ $(eval $(call SetupTarget, docs-reference-api-javadoc, \
 $(eval $(call SetupTarget, docs-reference-api-modulegraph, \
     MAKEFILE := Docs, \
     TARGET := docs-reference-api-modulegraph, \
-    DEPS := exploded-image buildtools-modules, \
+    DEPS := buildtools-modules runnable-buildjdk, \
 ))
 
 # The gensrc steps for jdk.jdi create html spec files.
@@ -640,6 +636,20 @@ $(eval $(call SetupTarget, test-image-jdk-jtreg-native, \
     DEPS := build-test-jdk-jtreg-native, \
 ))
 
+# Native files needed by the testlib
+$(eval $(call SetupTarget, build-test-lib-native, \
+    MAKEFILE := test/BuildTestLibNative, \
+    TARGET := build-test-lib-native, \
+    DEPS := buildtools-jdk java.base-libs, \
+))
+
+$(eval $(call SetupTarget, test-image-lib-native, \
+    MAKEFILE := test/BuildTestLibNative, \
+    TARGET := test-image-lib-native, \
+    DEPS := build-test-lib-native, \
+))
+
+# Native files needed when testing the testlib itself
 $(eval $(call SetupTarget, build-test-libtest-jtreg-native, \
     MAKEFILE := test/JtregNativeLibTest, \
     TARGET := build-test-libtest-jtreg-native, \
@@ -652,19 +662,7 @@ $(eval $(call SetupTarget, test-image-libtest-jtreg-native, \
     DEPS := build-test-libtest-jtreg-native, \
 ))
 
-$(eval $(call SetupTarget, build-test-hotspot-jtreg-graal, \
-    MAKEFILE := test/JtregGraalUnit, \
-    TARGET := build-test-hotspot-jtreg-graal, \
-    DEPS := exploded-image, \
-))
-
-$(eval $(call SetupTarget, test-image-hotspot-jtreg-graal, \
-    MAKEFILE := test/JtregGraalUnit, \
-    TARGET := test-image-hotspot-jtreg-graal, \
-    DEPS := build-test-hotspot-jtreg-graal, \
-))
-
-ifneq ($GTEST_FRAMEWORK_SRC), )
+ifneq ($(GTEST_FRAMEWORK_SRC), )
   $(eval $(call SetupTarget, test-image-hotspot-gtest, \
       MAKEFILE := hotspot/test/GtestImage, \
       DEPS := hotspot, \
@@ -741,12 +739,24 @@ $(eval $(call SetupTarget, test-bundles, \
     DEPS := test-image, \
 ))
 
-$(eval $(call SetupTarget, docs-bundles, \
+$(eval $(call SetupTarget, docs-jdk-bundles, \
     MAKEFILE := Bundles, \
-    TARGET := docs-bundles, \
+    TARGET := docs-jdk-bundles, \
     DEPS := docs-image, \
 ))
 
+$(eval $(call SetupTarget, docs-javase-bundles, \
+    MAKEFILE := Bundles, \
+    TARGET := docs-javase-bundles, \
+    DEPS := docs-javase-image, \
+))
+
+$(eval $(call SetupTarget, docs-reference-bundles, \
+    MAKEFILE := Bundles, \
+    TARGET := docs-reference-bundles, \
+    DEPS := docs-reference-image, \
+))
+
 $(eval $(call SetupTarget, static-libs-bundles, \
     MAKEFILE := Bundles, \
     TARGET := static-libs-bundles, \
@@ -855,18 +865,6 @@ else
   # copied and processed.
   java.desktop-gensrc-src: java.base-gensrc java.base-copy
 
-  # The annotation processing for jdk.internal.vm.compiler
-  # and jdk.internal.vm.compiler.management needs classes from the current JDK.
-  jdk.internal.vm.compiler-gensrc-src: $(addsuffix -java, \
-      $(call FindTransitiveDepsForModule, jdk.internal.vm.compiler))
-  jdk.internal.vm.compiler.management-gensrc-src: $(addsuffix -java, \
-      $(call FindTransitiveDepsForModule, jdk.internal.vm.compiler.management))
-
-  # For these modules, the gensrc step is generating a module-info.java.extra
-  # file to be processed by the gensrc-moduleinfo target.
-  jdk.internal.vm.compiler-gensrc-moduleinfo: jdk.internal.vm.compiler-gensrc-src
-  jdk.internal.vm.compiler.management-gensrc-moduleinfo: jdk.internal.vm.compiler.management-gensrc-src
-
   jdk.jdeps-gendata: java
 
   # The ct.sym generation uses all the moduleinfos as input
@@ -937,10 +935,13 @@ else
       $(JMOD_TARGETS) $(INTERIM_JMOD_TARGETS): java.base-libs java.base-copy \
           java.base-gendata jdk.jlink-launchers java
     endif
-  else
-    # The normal non cross compilation case uses needs to wait for the full
+  else ifeq ($(EXTERNAL_BUILDJDK), false)
+    # The normal non cross compilation usecase needs to wait for the full
     # exploded-image to avoid a race with the optimize target.
     $(JMOD_TARGETS) $(INTERIM_JMOD_TARGETS): exploded-image
+    # The buildtools-modules are used for the exploded-image-optimize target,
+    # but can be built either using the exploded-image or an external BUILDJDK.
+    buildtools-modules: exploded-image-base
   endif
 
   # All modules include the main license files from java.base.
@@ -1061,6 +1062,18 @@ ifneq ($(COMPILE_TYPE), cross)
   exploded-image: exploded-image-optimize
 endif
 
+# The runnable-buildjdk target guarantees that the buildjdk is done
+# building and ready to be used. The exact set of dependencies it needs
+# depends on what kind of buildjdk is used for the current configuration.
+runnable-buildjdk:
+ifeq ($(CREATE_BUILDJDK), true)
+  ifneq ($(CREATING_BUILDJDK), true)
+    runnable-buildjdk: create-buildjdk
+  endif
+else ifeq ($(EXTERNAL_BUILDJDK), false)
+  runnable-buildjdk: exploded-image
+endif
+
 create-buildjdk: create-buildjdk-interim-image
 
 docs-jdk-api: docs-jdk-api-javadoc
@@ -1114,11 +1127,21 @@ ifeq ($(call isTargetOs, macosx), true)
   legacy-images: mac-legacy-jre-bundle
 endif
 
-# This target builds the documentation image
-docs-image: docs-jdk
+# These targets build the various documentation images
+docs-jdk-image: docs-jdk
+docs-javase-image: docs-javase
+docs-reference-image: docs-reference
+# The docs-jdk-image is what most users expect to be built
+docs-image: docs-jdk-image
+all-docs-images: docs-jdk-image docs-javase-image docs-reference-image
+
+docs-bundles: docs-jdk-bundles
+all-docs-bundles: docs-jdk-bundles docs-javase-bundles docs-reference-bundles
 
 # This target builds the test image
-test-image: prepare-test-image test-image-jdk-jtreg-native test-image-demos-jdk test-image-libtest-jtreg-native
+test-image: prepare-test-image test-image-jdk-jtreg-native \
+    test-image-demos-jdk test-image-libtest-jtreg-native \
+    test-image-lib-native
 
 ifneq ($(JVM_TEST_IMAGE_TARGETS), )
   # If JVM_TEST_IMAGE_TARGETS is externally defined, use it instead of the
@@ -1129,10 +1152,6 @@ else
   ifneq ($(GTEST_FRAMEWORK_SRC), )
     test-image: test-image-hotspot-gtest
   endif
-
-  ifeq ($(INCLUDE_GRAAL), true)
-    test-image: test-image-hotspot-jtreg-graal
-  endif
 endif
 
 ifeq ($(BUILD_FAILURE_HANDLER), true)
@@ -1146,7 +1165,7 @@ endif
 ################################################################################
 
 # all-images builds all our deliverables as images.
-all-images: product-images test-image docs-image
+all-images: product-images test-image all-docs-images
 
 # all-bundles packages all our deliverables as tar.gz bundles.
 all-bundles: product-bundles test-bundles docs-bundles static-libs-bundles
@@ -1154,10 +1173,11 @@ all-bundles: product-bundles test-bundles docs-bundles static-libs-bundles
 ALL_TARGETS += buildtools hotspot hotspot-libs hotspot-gensrc gensrc gendata \
     copy java libs static-libs launchers jmods \
     jdk.jdwp.agent-gensrc $(ALL_MODULES) demos \
-    exploded-image-base exploded-image \
+    exploded-image-base exploded-image runnable-buildjdk \
     create-buildjdk docs-jdk-api docs-javase-api docs-reference-api docs-jdk \
     docs-javase docs-reference docs-javadoc mac-bundles product-images legacy-images \
-    docs-image test-image all-images \
+    docs-image docs-javase-image docs-reference-image all-docs-images \
+    docs-bundles all-docs-bundles test-image all-images \
     all-bundles
 
 ################################################################################

make/MainSupport.gmk

@@ -150,9 +150,7 @@ define DeclareRecipeForModuleMakefile
   $2-$$($1_TARGET_SUFFIX):
 	+($(CD) $(TOPDIR)/make && $(MAKE) $(MAKE_ARGS) \
 	    -f ModuleWrapper.gmk -I $$(TOPDIR)/make/common/modules  \
-	    $$(addprefix -I, $$(PHASE_MAKEDIRS) \
-	        $$(addsuffix /modules/$2, $$(PHASE_MAKEDIRS)) \
-	    ) \
+	    $$(patsubst %,-I%/modules/$2,$$(PHASE_MAKEDIRS)) \
 	    MODULE=$2 MAKEFILE_PREFIX=$$($1_FILE_PREFIX) $$($1_EXTRA_ARGS))
 
 endef
@@ -185,7 +183,6 @@ endef
 # Param 1: Name of list to add targets to
 # Named params:
 # TARGET_SUFFIX : Suffix of target to create for recipe
-# MAKE_SUBDIR : Subdir for this build phase
 # FILE_PREFIX : File prefix for this build phase
 # CHECK_MODULES : List of modules to try
 # MULTIPLE_MAKEFILES : Set to true to handle makefiles for the same module and

make/ModuleWrapper.gmk

@@ -39,7 +39,7 @@ include MakeBase.gmk
 TARGETS :=
 
 # Include the file being wrapped.
-include modules/$(MODULE)/$(MAKEFILE_PREFIX).gmk
+include $(MAKEFILE_PREFIX).gmk
 
 # Setup copy rules from the modules directories to the jdk image directory.
 ifeq ($(call isTargetOs, windows), true)

make/ReleaseFile.gmk

@@ -53,6 +53,7 @@ define create-info-file
   $(call info-file-item, "JAVA_VERSION_DATE", "$(VERSION_DATE)")
   $(call info-file-item, "OS_NAME", "$(RELEASE_FILE_OS_NAME)")
   $(call info-file-item, "OS_ARCH", "$(RELEASE_FILE_OS_ARCH)")
+  $(call info-file-item, "LIBC", "$(RELEASE_FILE_LIBC)")
 endef
 
 # Param 1 - The file containing the MODULES list

make/RunTests.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -46,7 +46,7 @@ endif
 
 $(eval $(call ParseKeywordVariable, TEST_OPTS, \
     SINGLE_KEYWORDS := JOBS TIMEOUT_FACTOR JCOV JCOV_DIFF_CHANGESET, \
-    STRING_KEYWORDS := VM_OPTIONS JAVA_OPTIONS AOT_MODULES, \
+    STRING_KEYWORDS := VM_OPTIONS JAVA_OPTIONS, \
 ))
 
 # Helper function to propagate TEST_OPTS values.
@@ -60,19 +60,14 @@ define SetTestOpt
   endif
 endef
 
-# Setup _NT_SYMBOL_PATH on Windows
+# Setup _NT_SYMBOL_PATH on Windows, which points to our pdb files.
 ifeq ($(call isTargetOs, windows), true)
   ifndef _NT_SYMBOL_PATH
-    # Can't use PathList here as it adds quotes around the value.
-    _NT_SYMBOL_PATH := \
-        $(subst $(SPACE),;,$(strip \
-            $(foreach p, $(sort $(dir $(wildcard \
-                $(addprefix $(SYMBOLS_IMAGE_DIR)/bin/, *.pdb */*.pdb)))), \
-              $(call FixPath, $p) \
-            ) \
-        ))
-    export _NT_SYMBOL_PATH
-    $(call LogDebug, Rewriting _NT_SYMBOL_PATH to $(_NT_SYMBOL_PATH))
+    SYMBOL_PATH := $(call PathList, $(sort $(patsubst %/, %, $(dir $(wildcard \
+        $(addprefix $(SYMBOLS_IMAGE_DIR)/bin/, *.pdb */*.pdb))))))
+    export _NT_SYMBOL_PATH := $(subst \\,\, $(call FixPath, \
+        $(subst $(DQUOTE),, $(SYMBOL_PATH))))
+    $(call LogDebug, Setting _NT_SYMBOL_PATH to $(_NT_SYMBOL_PATH))
   endif
 endif
 
@@ -139,92 +134,6 @@ ifeq ($(GCOV_ENABLED), true)
   JTREG_COV_OPTIONS += -e:GCOV_PREFIX="$(GCOV_OUTPUT_DIR)"
 endif
 
-################################################################################
-# Optionally create AOT libraries for specified modules before running tests.
-# Note, this could not be done during JDK build time.
-################################################################################
-# Parameter 1 is the name of the rule.
-#
-# Remaining parameters are named arguments.
-#   MODULE      The module to generate a library for
-#   BIN         Output directory in which to put the library
-#   VM_OPTIONS  List of JVM arguments to use when creating library
-#   OPTIONS_VAR Name of variable to put AOT java options in
-#   PREREQS_VAR Name of variable to put all AOT prerequisite rule targets in
-#               for test rules to depend on
-#
-SetupAotModule = $(NamedParamsMacroTemplate)
-define SetupAotModuleBody
-  $1_AOT_LIB := $$($1_BIN)/$$(call SHARED_LIBRARY,$$($1_MODULE))
-  $1_AOT_CCLIST := $$(wildcard $$(TOPDIR)/test/hotspot/jtreg/compiler/aot/scripts/$$($1_MODULE)-list.txt)
-
-  # Create jaotc flags.
-  # VM flags which don't affect AOT code generation are filtered out:
-  # -Xcomp, -XX:+-TieredCompilation
-  $1_JAOTC_OPTS := \
-      -J-Xmx4g --info \
-      $$(addprefix -J, $$(filter-out -Xcomp %TieredCompilation, $$($1_VM_OPTIONS))) \
-      $$(addprefix --compile-commands$(SPACE), $$($1_AOT_CCLIST)) \
-      --linker-path $$(LD_JAOTC) \
-      #
-
-  ifneq ($$(filter -ea, $$($1_VM_OPTIONS)), )
-    $1_JAOTC_OPTS += --compile-with-assertions
-  endif
-
-  $$($1_AOT_LIB): $$(JDK_UNDER_TEST)/release \
-      $$(call DependOnVariable, $1_JAOTC_OPTS) \
-      $$(call DependOnVariable, JDK_UNDER_TEST)
-	$$(call LogWarn, Generating $$(patsubst $$(OUTPUTDIR)/%, %, $$@))
-	$$(call MakeTargetDir)
-	$$(call ExecuteWithLog, $$@, \
-	    $((COV_ENVIRONMENT) \
-	    $$(FIXPATH) $$(JDK_UNDER_TEST)/bin/jaotc \
-	        $$($1_JAOTC_OPTS) --output $$@ --module $$($1_MODULE) \
-	)
-	$$(call ExecuteWithLog, $$@.check, ( \
-	    $$(FIXPATH) $$(JDK_UNDER_TEST)/bin/java \
-	        $$($1_VM_OPTIONS) -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions \
-	        -XX:+PrintAOT -XX:+UseAOTStrictLoading \
-	        -XX:AOTLibrary=$$@ -version \
-	         > $$@.verify-aot \
-	))
-
-  $1_AOT_OPTIONS += -XX:+UnlockExperimentalVMOptions
-  $1_AOT_OPTIONS += -XX:AOTLibrary=$$($1_AOT_LIB)
-  $1_AOT_TARGETS += $$($1_AOT_LIB)
-endef
-
-################################################################################
-# Optionally create AOT libraries before running tests.
-# Note, this could not be done during JDK build time.
-################################################################################
-# Parameter 1 is the name of the rule.
-#
-# Remaining parameters are named arguments.
-#   MODULES     The modules to generate a library for
-#   VM_OPTIONS  List of JVM arguments to use when creating libraries
-#
-# After calling this, the following variables are defined
-#   $1_AOT_OPTIONS List of all java options needed to use the AOT libraries
-#   $1_AOT_TARGETS List of all targets that the test rule will need to depend on
-#
-SetupAot = $(NamedParamsMacroTemplate)
-define SetupAotBody
-  $$(info Running with AOTd libraries for $$($1_MODULES))
-  # Put aot libraries in a separate directory so they are not deleted between
-  # test runs and may be reused between make invocations.
-  $$(foreach m, $$($1_MODULES), \
-    $$(eval $$(call SetupAotModule, $1_$$m, \
-        MODULE := $$m, \
-        BIN := $$(TEST_SUPPORT_DIR)/aot/$1, \
-        VM_OPTIONS := $$($1_VM_OPTIONS), \
-    )) \
-    $$(eval $1_AOT_OPTIONS += $$($1_$$m_AOT_OPTIONS)) \
-    $$(eval $1_AOT_TARGETS += $$($1_$$m_AOT_TARGETS)) \
-  )
-endef
-
 ################################################################################
 # Setup global test running parameters
 ################################################################################
@@ -283,7 +192,6 @@ endif
 
 $(eval $(call SetTestOpt,VM_OPTIONS,JTREG))
 $(eval $(call SetTestOpt,JAVA_OPTIONS,JTREG))
-$(eval $(call SetTestOpt,AOT_MODULES,JTREG))
 
 $(eval $(call SetTestOpt,JOBS,JTREG))
 $(eval $(call SetTestOpt,TIMEOUT_FACTOR,JTREG))
@@ -294,7 +202,7 @@ $(eval $(call ParseKeywordVariable, JTREG, \
         TEST_MODE ASSERT VERBOSE RETAIN MAX_MEM RUN_PROBLEM_LISTS \
         RETRY_COUNT MAX_OUTPUT, \
     STRING_KEYWORDS := OPTIONS JAVA_OPTIONS VM_OPTIONS KEYWORDS \
-        EXTRA_PROBLEM_LISTS AOT_MODULES LAUNCHER_OPTIONS, \
+        EXTRA_PROBLEM_LISTS LAUNCHER_OPTIONS, \
 ))
 
 ifneq ($(JTREG), )
@@ -306,11 +214,10 @@ endif
 
 $(eval $(call SetTestOpt,VM_OPTIONS,GTEST))
 $(eval $(call SetTestOpt,JAVA_OPTIONS,GTEST))
-$(eval $(call SetTestOpt,AOT_MODULES,GTEST))
 
 $(eval $(call ParseKeywordVariable, GTEST, \
     SINGLE_KEYWORDS := REPEAT, \
-    STRING_KEYWORDS := OPTIONS VM_OPTIONS JAVA_OPTIONS AOT_MODULES, \
+    STRING_KEYWORDS := OPTIONS VM_OPTIONS JAVA_OPTIONS, \
 ))
 
 ifneq ($(GTEST), )
@@ -593,23 +500,18 @@ define SetupRunGtestTestBody
     $1_GTEST_REPEAT :=--gtest_repeat=$$(GTEST_REPEAT)
   endif
 
-  ifneq ($$(GTEST_AOT_MODULES), )
-    $$(eval $$(call SetupAot, $1, \
-        MODULES := $$(GTEST_AOT_MODULES), \
-        VM_OPTIONS := $$(GTEST_VM_OPTIONS) $$(GTEST_JAVA_OPTIONS), \
-    ))
-  endif
-
-  run-test-$1: pre-run-test $$($1_AOT_TARGETS)
+  run-test-$1: pre-run-test
 	$$(call LogWarn)
 	$$(call LogWarn, Running test '$$($1_TEST)')
 	$$(call MakeDir, $$($1_TEST_RESULTS_DIR) $$($1_TEST_SUPPORT_DIR))
 	$$(call ExecuteWithLog, $$($1_TEST_SUPPORT_DIR)/gtest, ( \
+	    $$(CD) $$($1_TEST_SUPPORT_DIR) && \
 	    $$(FIXPATH) $$(TEST_IMAGE_DIR)/hotspot/gtest/$$($1_VARIANT)/gtestLauncher \
 	        -jdk $(JDK_UNDER_TEST) $$($1_GTEST_FILTER) \
 	        --gtest_output=xml:$$($1_TEST_RESULTS_DIR)/gtest.xml \
+	        --gtest_catch_exceptions=0 \
 	        $$($1_GTEST_REPEAT) $$(GTEST_OPTIONS) $$(GTEST_VM_OPTIONS) \
-	        $$(GTEST_JAVA_OPTIONS) $$($1_AOT_OPTIONS) \
+	        $$(GTEST_JAVA_OPTIONS) \
 	        > >($(TEE) $$($1_TEST_RESULTS_DIR)/gtest.txt) \
 	    && $$(ECHO) $$$$? > $$($1_EXITCODE) \
 	    || $$(ECHO) $$$$? > $$($1_EXITCODE) \
@@ -916,7 +818,6 @@ define SetupRunJtregTestBody
   endif
 
   $1_JTREG_BASIC_OPTIONS += -e:TEST_IMAGE_DIR=$(TEST_IMAGE_DIR)
-  $1_JTREG_BASIC_OPTIONS += -e:TEST_IMAGE_GRAAL_DIR=$(TEST_IMAGE_DIR)/hotspot/jtreg/graal
 
   ifneq ($$(JTREG_FAILURE_HANDLER_OPTIONS), )
     $1_JTREG_LAUNCHER_OPTIONS += -Djava.library.path="$(JTREG_FAILURE_HANDLER_DIR)"
@@ -933,17 +834,6 @@ define SetupRunJtregTestBody
     endif
   endif
 
-  ifneq ($$(JTREG_AOT_MODULES), )
-    $$(eval $$(call SetupAot, $1, \
-        MODULES := $$(JTREG_AOT_MODULES), \
-        VM_OPTIONS := $$(JTREG_VM_OPTIONS) $$(JTREG_JAVA_OPTIONS), \
-    ))
-  endif
-
-  ifneq ($$($1_AOT_OPTIONS), )
-    $1_JTREG_BASIC_OPTIONS += -vmoptions:"$$($1_AOT_OPTIONS)"
-  endif
-
   clean-workdir-$1:
 	$$(RM) -r $$($1_TEST_SUPPORT_DIR)
 
@@ -978,7 +868,7 @@ define SetupRunJtregTestBody
         done
   endif
 
-  run-test-$1: pre-run-test clean-workdir-$1 $$($1_AOT_TARGETS)
+  run-test-$1: pre-run-test clean-workdir-$1
 	$$(call LogWarn)
 	$$(call LogWarn, Running test '$$($1_TEST)')
 	$$(call MakeDir, $$($1_TEST_RESULTS_DIR) $$($1_TEST_SUPPORT_DIR) \

make/RunTestsPrebuilt.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2017, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -189,15 +189,11 @@ ifeq ($(OPENJDK_TARGET_CPU), x86_64)
 endif
 
 ifeq ($(OPENJDK_TARGET_OS), windows)
-  ifeq ($(wildcard $(TEST_IMAGE_DIR)/bin/fixpath.exe), )
-    $(info Error: fixpath is missing from test image '$(TEST_IMAGE_DIR)')
-    $(error Cannot continue.)
-  endif
-  FIXPATH := $(TEST_IMAGE_DIR)/bin/fixpath.exe -c
-  PATH_SEP:=;
+  FIXPATH_BASE := $(BASH) $(TOPDIR)/make/scripts/fixpath.sh
+  FIXPATH := $(FIXPATH_BASE) exec
 else
+  FIXPATH_BASE :=
   FIXPATH :=
-  PATH_SEP:=:
 endif
 
 # Check number of cores and memory in MB
@@ -226,25 +222,6 @@ ifeq ($(MEMORY_SIZE), )
   MEMORY_SIZE := 1024
 endif
 
-# Setup LD for AOT support
-ifneq ($(DEVKIT_HOME), )
-  ifeq ($(OPENJDK_TARGET_OS), windows)
-    LD_JAOTC := $(DEVKIT_HOME)/VC/bin/x64/link.exe
-    LIBRARY_PREFIX :=
-    SHARED_LIBRARY_SUFFIX := .dll
-  else ifeq ($(OPENJDK_TARGET_OS), linux)
-    LD_JAOTC := $(DEVKIT_HOME)/bin/ld
-    LIBRARY_PREFIX := lib
-    SHARED_LIBRARY_SUFFIX := .so
-  else ifeq ($(OPENJDK_TARGET_OS), macosx)
-    LD_JAOTC := $(DEVKIT_HOME)/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld
-    LIBRARY_PREFIX := lib
-    SHARED_LIBRARY_SUFFIX := .dylib
-  endif
-else
-  LD := ld
-endif
-
 ifneq ($(wildcard $(JDK_IMAGE_DIR)/template.xml), )
   TEST_OPTS_JCOV := true
   JCOV_IMAGE_DIR := $(JDK_IMAGE_DIR)
@@ -279,8 +256,8 @@ $(call CreateNewSpec, $(NEW_SPEC), \
     MAKE := $(MAKE), \
     BASH := $(BASH), \
     JIB_JAR := $(JIB_JAR), \
+    FIXPATH_BASE := $(FIXPATH_BASE), \
     FIXPATH := $(FIXPATH), \
-    PATH_SEP := $(PATH_SEP), \
     OPENJDK_TARGET_OS := $(OPENJDK_TARGET_OS), \
     OPENJDK_TARGET_OS_TYPE := $(OPENJDK_TARGET_OS_TYPE), \
     OPENJDK_TARGET_OS_ENV := $(OPENJDK_TARGET_OS_ENV), \
@@ -290,9 +267,6 @@ $(call CreateNewSpec, $(NEW_SPEC), \
     OPENJDK_TARGET_CPU_ENDIAN := $(OPENJDK_TARGET_CPU_ENDIAN), \
     NUM_CORES := $(NUM_CORES), \
     MEMORY_SIZE := $(MEMORY_SIZE), \
-    LD_JAOTC := $(LD_JAOTC), \
-    LIBRARY_PREFIX := $(LIBRARY_PREFIX), \
-    SHARED_LIBRARY_SUFFIX := $(SHARED_LIBRARY_SUFFIX), \
     include $(TOPDIR)/make/RunTestsPrebuiltSpec.gmk, \
     TEST_OPTS_JCOV := $(TEST_OPTS_JCOV), \
     $(CUSTOM_NEW_SPEC_LINE), \

make/RunTestsPrebuiltSpec.gmk

@@ -116,16 +116,13 @@ JAVAC_CMD := $(BOOT_JDK)/bin/javac
 JAR_CMD := $(BOOT_JDK)/bin/jar
 JLINK_CMD := $(JDK_OUTPUTDIR)/bin/jlink
 JMOD_CMD := $(JDK_OUTPUTDIR)/bin/jmod
-JARSIGNER_CMD := $(BOOT_JDK)/bin/jarsigner
 
 JAVA := $(FIXPATH) $(JAVA_CMD) $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)
 JAVA_SMALL := $(FIXPATH) $(JAVA_CMD) $(JAVA_FLAGS_SMALL) $(JAVA_FLAGS)
-JAVA_DETACH := $(FIXPATH) $(FIXPATH_DETACH_FLAG) $(JAVA_CMD) $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)
 JAVAC := $(FIXPATH) $(JAVAC_CMD)
 JAR := $(FIXPATH) $(JAR_CMD)
 JLINK := $(FIXPATH) $(JLINK_CMD)
 JMOD := $(FIXPATH) $(JMOD_CMD)
-JARSIGNER := $(FIXPATH) $(JARSIGNER_CMD)
 
 BUILD_JAVA := $(JDK_IMAGE_DIR)/bin/JAVA
 ################################################################################
@@ -153,7 +150,6 @@ LN := ln
 MIG := mig
 MKDIR := mkdir
 MV := mv
-NAWK := nawk
 NICE := nice
 PATCH := patch
 PRINTF := printf
@@ -167,7 +163,6 @@ TAIL := tail
 TEE := tee
 TR := tr
 TOUCH := touch
-UNIQ := uniq
 WC := wc
 XARGS := xargs
 ZIPEXE := zip
@@ -178,7 +173,7 @@ HG := hg
 ULIMIT := ulimit
 
 ifeq ($(OPENJDK_BUILD_OS), windows)
-  CYGPATH := cygpath
+  PATHTOOL := cygpath
 endif
 
 ################################################################################

make/TestImage.gmk

@@ -30,34 +30,25 @@ include MakeBase.gmk
 
 ############################################################################
 
-ifeq ($(call isTargetOs, windows), true)
-  FIXPATH_COPY := $(TEST_IMAGE_DIR)/bin/fixpath.exe
-
-  $(FIXPATH_COPY): $(firstword $(FIXPATH))
-	$(call install-file)
-
-  FIXPATH_WORKSPACE_ROOT := $(call FixPath, $(WORKSPACE_ROOT))
-  FIXPATH_OUTPUTDIR := $(call FixPath, $(OUTPUTDIR))
-else
-  FIXPATH_WORKSPACE_ROOT := $(WORKSPACE_ROOT)
-  FIXPATH_OUTPUTDIR := $(OUTPUTDIR)
-endif
-
-
 BUILD_INFO_PROPERTIES := $(TEST_IMAGE_DIR)/build-info.properties
 
 $(BUILD_INFO_PROPERTIES):
 	$(call MakeTargetDir)
 	$(ECHO) "# Build info properties for JDK tests" > $@
-	$(ECHO) "build.workspace.root=$(FIXPATH_WORKSPACE_ROOT)" >> $@
-	$(ECHO) "build.output.root=$(FIXPATH_OUTPUTDIR)" >> $@
+	$(ECHO) "build.workspace.root=$(call FixPath, $(WORKSPACE_ROOT))" >> $@
+	$(ECHO) "build.output.root=$(call FixPath, $(OUTPUTDIR))" >> $@
 
-prepare-test-image: $(FIXPATH_COPY) $(BUILD_INFO_PROPERTIES)
-	$(call MakeDir, $(TEST_IMAGE_DIR))
-	$(ECHO) > $(TEST_IMAGE_DIR)/Readme.txt 'JDK test image'
+README := $(TEST_IMAGE_DIR)/Readme.txt
+
+$(README):
+	$(call MakeTargetDir)
+	$(ECHO) > $@ 'JDK test image'
+
+TARGETS += $(BUILD_INFO_PROPERTIES) $(README)
 
 ################################################################################
 
+prepare-test-image: $(TARGETS)
 all: prepare-test-image
 
 .PHONY: default all prepare-test-image

make/ToolsJdk.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -67,8 +67,9 @@ TOOL_GENERATECURRENCYDATA = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_
 TOOL_TZDB = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
     build.tools.tzdb.TzdbZoneRulesCompiler
 
-TOOL_BLACKLISTED_CERTS = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
-    build.tools.blacklistedcertsconverter.BlacklistedCertsConverter
+TOOL_BLOCKED_CERTS = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
+    --add-exports java.base/sun.security.util=ALL-UNNAMED \
+    build.tools.blockedcertsconverter.BlockedCertsConverter
 
 TOOL_MAKEJAVASECURITY = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
     build.tools.makejavasecurity.MakeJavaSecurity

make/autoconf/basic.m4

@@ -70,32 +70,27 @@ AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
   fi
 
   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
-    PATH_SEP=";"
-    EXE_SUFFIX=".exe"
-    BASIC_CHECK_PATHS_WINDOWS
-  else
-    PATH_SEP=":"
-    EXE_SUFFIX=""
+    BASIC_SETUP_PATHS_WINDOWS
   fi
-  AC_SUBST(PATH_SEP)
-  AC_SUBST(EXE_SUFFIX)
 
   # We get the top-level directory from the supporting wrappers.
+  BASIC_WINDOWS_VERIFY_DIR($TOPDIR, source)
+  UTIL_FIXUP_PATH(TOPDIR)
   AC_MSG_CHECKING([for top-level directory])
   AC_MSG_RESULT([$TOPDIR])
   AC_SUBST(TOPDIR)
-  AC_SUBST(CONFIGURE_START_DIR)
 
   if test "x$CUSTOM_ROOT" != x; then
+    BASIC_WINDOWS_VERIFY_DIR($CUSTOM_ROOT, custom root)
+    UTIL_FIXUP_PATH(CUSTOM_ROOT)
     WORKSPACE_ROOT="${CUSTOM_ROOT}"
   else
     WORKSPACE_ROOT="${TOPDIR}"
   fi
   AC_SUBST(WORKSPACE_ROOT)
 
-  # We can only call UTIL_FIXUP_PATH after BASIC_CHECK_PATHS_WINDOWS.
   UTIL_FIXUP_PATH(CONFIGURE_START_DIR)
-  UTIL_FIXUP_PATH(TOPDIR)
+  AC_SUBST(CONFIGURE_START_DIR)
 
   # Locate the directory of this script.
   AUTOCONF_DIR=$TOPDIR/make/autoconf
@@ -116,6 +111,16 @@ AC_DEFUN([BASIC_EVAL_DEVKIT_VARIABLE],
   fi
 ])
 
+###############################################################################
+# Evaluates platform specific overrides for build devkit variables.
+# $1: Name of variable
+AC_DEFUN([BASIC_EVAL_BUILD_DEVKIT_VARIABLE],
+[
+  if test "x[$]$1" = x; then
+    eval $1="\${$1_${OPENJDK_BUILD_CPU}}"
+  fi
+])
+
 ###############################################################################
 AC_DEFUN_ONCE([BASIC_SETUP_DEVKIT],
 [
@@ -223,9 +228,12 @@ AC_DEFUN_ONCE([BASIC_SETUP_DEVKIT],
     # if no Xcode installed, xcodebuild exits with 1
     # if Xcode is installed, even if xcode-select is misconfigured, then it exits with 0
     if test "x$DEVKIT_ROOT" != x || /usr/bin/xcodebuild -version >/dev/null 2>&1; then
-      # We need to use xcodebuild in the toolchain dir provided by the user, this will
-      # fall back on the stub binary in /usr/bin/xcodebuild
-      AC_PATH_PROG([XCODEBUILD], [xcodebuild], [/usr/bin/xcodebuild], [$TOOLCHAIN_PATH])
+      # We need to use xcodebuild in the toolchain dir provided by the user
+      UTIL_LOOKUP_PROGS(XCODEBUILD, xcodebuild, $TOOLCHAIN_PATH)
+      if test x$XCODEBUILD = x; then
+        # fall back on the stub binary in /usr/bin/xcodebuild
+        XCODEBUILD=/usr/bin/xcodebuild
+      fi
     else
       # this should result in SYSROOT being empty, unless --with-sysroot is provided
       # when only the command line tools are installed there are no SDKs, so headers
@@ -295,6 +303,7 @@ AC_DEFUN_ONCE([BASIC_SETUP_DEVKIT],
   AC_MSG_RESULT([$SYSROOT])
   AC_MSG_CHECKING([for toolchain path])
   AC_MSG_RESULT([$TOOLCHAIN_PATH])
+  AC_SUBST(TOOLCHAIN_PATH)
   AC_MSG_CHECKING([for extra path])
   AC_MSG_RESULT([$EXTRA_PATH])
 ])
@@ -369,6 +378,7 @@ AC_DEFUN_ONCE([BASIC_SETUP_OUTPUT_DIR],
   AC_MSG_CHECKING([what configuration name to use])
   AC_MSG_RESULT([$CONF_NAME])
 
+  BASIC_WINDOWS_VERIFY_DIR($OUTPUTDIR, output)
   UTIL_FIXUP_PATH(OUTPUTDIR)
 
   CONFIGURESUPPORT_OUTPUTDIR="$OUTPUTDIR/configure-support"
@@ -405,26 +415,16 @@ AC_DEFUN([BASIC_CHECK_DIR_ON_LOCAL_DISK],
   # df -l lists only local disks; if the given directory is not found then
   # a non-zero exit code is given
   if test "x$DF" = x; then
-    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-      # msys does not have df; use Windows "net use" instead.
-      IS_NETWORK_DISK=`net use | grep \`pwd -W | cut -d ":" -f 1 | tr a-z A-Z\`:`
-      if test "x$IS_NETWORK_DISK" = x; then
-        $2
-      else
-        $3
-      fi
-    else
-      # No df here, say it's local
-      $2
-    fi
+    # No df here, say it's local
+    $2
   else
     # JDK-8189619
     # df on AIX does not understand -l. On modern AIXes it understands "-T local" which
     # is the same. On older AIXes we just continue to live with a "not local build" warning.
     if test "x$OPENJDK_TARGET_OS" = xaix; then
       DF_LOCAL_ONLY_OPTION='-T local'
-    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-      # In WSL, we can only build on a drvfs file system (that is, a mounted real Windows drive)
+    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl1"; then
+      # In WSL1, we can only build on a drvfs file system (that is, a mounted real Windows drive)
       DF_LOCAL_ONLY_OPTION='-t drvfs'
     else
       DF_LOCAL_ONLY_OPTION='-l'

make/autoconf/basic_tools.m4

@@ -28,38 +28,37 @@
 # but is used by much of the early bootstrap code.
 AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
 [
-  # Start with tools that do not need have cross compilation support
-  # and can be expected to be found in the default PATH. These tools are
-  # used by configure.
+  # Bootstrapping: These tools are needed by UTIL_LOOKUP_PROGS
+  AC_PATH_PROGS(BASENAME, basename)
+  UTIL_CHECK_NONEMPTY(BASENAME)
+  AC_PATH_PROGS(DIRNAME, dirname)
+  UTIL_CHECK_NONEMPTY(DIRNAME)
+  AC_PATH_PROGS(FILE, file)
+  UTIL_CHECK_NONEMPTY(FILE)
+  AC_PATH_PROGS(LDD, ldd)
 
-  # First are all the simple required tools.
-  UTIL_REQUIRE_PROGS(BASENAME, basename)
+  # First are all the fundamental required tools.
   UTIL_REQUIRE_PROGS(BASH, bash)
   UTIL_REQUIRE_PROGS(CAT, cat)
   UTIL_REQUIRE_PROGS(CHMOD, chmod)
-  UTIL_REQUIRE_PROGS(CMP, cmp)
-  UTIL_REQUIRE_PROGS(COMM, comm)
   UTIL_REQUIRE_PROGS(CP, cp)
   UTIL_REQUIRE_PROGS(CUT, cut)
   UTIL_REQUIRE_PROGS(DATE, date)
-  UTIL_REQUIRE_PROGS(DIFF, [gdiff diff])
-  UTIL_REQUIRE_PROGS(DIRNAME, dirname)
+  UTIL_REQUIRE_PROGS(DIFF, gdiff diff)
   UTIL_REQUIRE_PROGS(ECHO, echo)
   UTIL_REQUIRE_PROGS(EXPR, expr)
-  UTIL_REQUIRE_PROGS(FILE, file)
   UTIL_REQUIRE_PROGS(FIND, find)
-  UTIL_REQUIRE_PROGS(HEAD, head)
   UTIL_REQUIRE_PROGS(GUNZIP, gunzip)
   UTIL_REQUIRE_PROGS(GZIP, pigz gzip)
+  UTIL_REQUIRE_PROGS(HEAD, head)
   UTIL_REQUIRE_PROGS(LN, ln)
   UTIL_REQUIRE_PROGS(LS, ls)
   # gmkdir is known to be safe for concurrent invocations with -p flag.
-  UTIL_REQUIRE_PROGS(MKDIR, [gmkdir mkdir])
+  UTIL_REQUIRE_PROGS(MKDIR, gmkdir mkdir)
   UTIL_REQUIRE_PROGS(MKTEMP, mktemp)
   UTIL_REQUIRE_PROGS(MV, mv)
-  UTIL_REQUIRE_PROGS(NAWK, [nawk gawk awk])
+  UTIL_REQUIRE_PROGS(AWK, gawk nawk awk)
   UTIL_REQUIRE_PROGS(PRINTF, printf)
-  UTIL_REQUIRE_PROGS(READLINK, [greadlink readlink])
   UTIL_REQUIRE_PROGS(RM, rm)
   UTIL_REQUIRE_PROGS(RMDIR, rmdir)
   UTIL_REQUIRE_PROGS(SH, sh)
@@ -70,34 +69,31 @@ AC_DEFUN_ONCE([BASIC_SETUP_FUNDAMENTAL_TOOLS],
   UTIL_REQUIRE_PROGS(TOUCH, touch)
   UTIL_REQUIRE_PROGS(TR, tr)
   UTIL_REQUIRE_PROGS(UNAME, uname)
-  UTIL_REQUIRE_PROGS(UNIQ, uniq)
   UTIL_REQUIRE_PROGS(WC, wc)
-  UTIL_REQUIRE_PROGS(WHICH, which)
   UTIL_REQUIRE_PROGS(XARGS, xargs)
 
   # Then required tools that require some special treatment.
-  UTIL_REQUIRE_SPECIAL(AWK, [AC_PROG_AWK])
   UTIL_REQUIRE_SPECIAL(GREP, [AC_PROG_GREP])
   UTIL_REQUIRE_SPECIAL(EGREP, [AC_PROG_EGREP])
   UTIL_REQUIRE_SPECIAL(FGREP, [AC_PROG_FGREP])
   UTIL_REQUIRE_SPECIAL(SED, [AC_PROG_SED])
 
+  # Optional tools, we can do without them
+  UTIL_LOOKUP_PROGS(DF, df)
+  UTIL_LOOKUP_PROGS(NICE, nice)
+  UTIL_LOOKUP_PROGS(READLINK, greadlink readlink)
+
+  # These are only needed on some platforms
+  UTIL_LOOKUP_PROGS(PATHTOOL, cygpath wslpath)
+  UTIL_LOOKUP_PROGS(LSB_RELEASE, lsb_release)
+  UTIL_LOOKUP_PROGS(CMD, cmd.exe, $PATH:/cygdrive/c/windows/system32:/mnt/c/windows/system32:/c/windows/system32)
+
+  # For compare.sh only
+  UTIL_LOOKUP_PROGS(CMP, cmp)
+  UTIL_LOOKUP_PROGS(UNIQ, uniq)
+
   # Always force rm.
   RM="$RM -f"
-
-  # pwd behaves differently on various platforms and some don't support the -L flag.
-  # Always use the bash builtin pwd to get uniform behavior.
-  THEPWDCMD=pwd
-
-  # These are not required on all platforms
-  UTIL_PATH_PROGS(CYGPATH, cygpath)
-  UTIL_PATH_PROGS(WSLPATH, wslpath)
-  UTIL_PATH_PROGS(DF, df)
-  UTIL_PATH_PROGS(CPIO, [cpio bsdcpio])
-  UTIL_PATH_PROGS(NICE, nice)
-
-  UTIL_PATH_PROGS(LSB_RELEASE, lsb_release)
-  UTIL_PATH_PROGS(CMD, cmd.exe, $PATH /cygdrive/c/Windows/System32 /mnt/c/Windows/System32)
 ])
 
 ###############################################################################
@@ -132,10 +128,14 @@ AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
         if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
           if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
             MAKE_EXPECTED_ENV='cygwin'
-          elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
+          elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys2"; then
             MAKE_EXPECTED_ENV='msys'
-          elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-            MAKE_EXPECTED_ENV='x86_64-.*-linux-gnu'
+          elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl1" || test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl2"; then
+            if test "x$OPENJDK_BUILD_CPU" = "xaarch64"; then
+              MAKE_EXPECTED_ENV='aarch64-.*-linux-gnu'
+            else
+              MAKE_EXPECTED_ENV='x86_64-.*-linux-gnu'
+            fi
           else
             AC_MSG_ERROR([Unknown Windows environment])
           fi
@@ -187,14 +187,14 @@ AC_DEFUN([BASIC_CHECK_MAKE_OUTPUT_SYNC],
 # Goes looking for a usable version of GNU make.
 AC_DEFUN([BASIC_CHECK_GNU_MAKE],
 [
-  UTIL_SETUP_TOOL([MAKE],
+  UTIL_SETUP_TOOL(MAKE,
   [
     # Try our hardest to locate a correct version of GNU make
-    AC_PATH_PROGS(CHECK_GMAKE, gmake)
+    UTIL_LOOKUP_PROGS(CHECK_GMAKE, gmake)
     BASIC_CHECK_MAKE_VERSION("$CHECK_GMAKE", [gmake in PATH])
 
     if test "x$FOUND_MAKE" = x; then
-      AC_PATH_PROGS(CHECK_MAKE, make)
+      UTIL_LOOKUP_PROGS(CHECK_MAKE, make)
       BASIC_CHECK_MAKE_VERSION("$CHECK_MAKE", [make in PATH])
     fi
 
@@ -203,10 +203,10 @@ AC_DEFUN([BASIC_CHECK_GNU_MAKE],
         # We have a toolchain path, check that as well before giving up.
         OLD_PATH=$PATH
         PATH=$TOOLCHAIN_PATH:$PATH
-        AC_PATH_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
+        UTIL_LOOKUP_PROGS(CHECK_TOOLSDIR_GMAKE, gmake)
         BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_GMAKE", [gmake in tools-dir])
         if test "x$FOUND_MAKE" = x; then
-          AC_PATH_PROGS(CHECK_TOOLSDIR_MAKE, make)
+          UTIL_LOOKUP_PROGS(CHECK_TOOLSDIR_MAKE, make)
           BASIC_CHECK_MAKE_VERSION("$CHECK_TOOLSDIR_MAKE", [make in tools-dir])
         fi
         PATH=$OLD_PATH
@@ -336,24 +336,17 @@ AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
 
   # Non-required basic tools
 
-  UTIL_PATH_PROGS(LDD, ldd)
-  if test "x$LDD" = "x"; then
-    # List shared lib dependencies is used for
-    # debug output and checking for forbidden dependencies.
-    # We can build without it.
-    LDD="true"
-  fi
-  UTIL_PATH_PROGS(READELF, [greadelf readelf])
-  UTIL_PATH_PROGS(DOT, dot)
-  UTIL_PATH_PROGS(HG, hg)
-  UTIL_PATH_PROGS(GIT, git)
-  UTIL_PATH_PROGS(STAT, stat)
-  UTIL_PATH_PROGS(TIME, time)
-  UTIL_PATH_PROGS(FLOCK, flock)
+  UTIL_LOOKUP_PROGS(READELF, greadelf readelf)
+  UTIL_LOOKUP_PROGS(DOT, dot)
+  UTIL_LOOKUP_PROGS(HG, hg)
+  UTIL_LOOKUP_PROGS(GIT, git)
+  UTIL_LOOKUP_PROGS(STAT, stat)
+  UTIL_LOOKUP_PROGS(TIME, time)
+  UTIL_LOOKUP_PROGS(FLOCK, flock)
   # Dtrace is usually found in /usr/sbin, but that directory may not
   # be in the user path.
-  UTIL_PATH_PROGS(DTRACE, dtrace, $PATH:/usr/sbin)
-  UTIL_PATH_PROGS(PATCH, [gpatch patch])
+  UTIL_LOOKUP_PROGS(DTRACE, dtrace, $PATH:/usr/sbin)
+  UTIL_LOOKUP_PROGS(PATCH, gpatch patch)
   # Check if it's GNU time
   IS_GNU_TIME=`$TIME --version 2>&1 | $GREP 'GNU time'`
   if test "x$IS_GNU_TIME" != x; then
@@ -367,7 +360,7 @@ AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
     UTIL_REQUIRE_PROGS(DSYMUTIL, dsymutil)
     UTIL_REQUIRE_PROGS(MIG, mig)
     UTIL_REQUIRE_PROGS(XATTR, xattr)
-    UTIL_PATH_PROGS(CODESIGN, codesign)
+    UTIL_LOOKUP_PROGS(CODESIGN, codesign)
 
     if test "x$CODESIGN" != "x"; then
       # Check for user provided code signing identity.
@@ -408,7 +401,7 @@ AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
     UTIL_REQUIRE_PROGS(SETFILE, SetFile)
   fi
   if ! test "x$OPENJDK_TARGET_OS" = "xwindows"; then
-    UTIL_REQUIRE_BUILTIN_PROGS(ULIMIT, ulimit)
+    UTIL_REQUIRE_PROGS(ULIMIT, ulimit)
   fi
 ])
 
@@ -454,7 +447,7 @@ AC_DEFUN_ONCE([BASIC_CHECK_BASH_OPTIONS],
 #
 AC_DEFUN_ONCE([BASIC_SETUP_PANDOC],
 [
-  UTIL_PATH_PROGS(PANDOC, pandoc)
+  UTIL_LOOKUP_PROGS(PANDOC, pandoc)
 
   PANDOC_MARKDOWN_FLAG="markdown"
   if test -n "$PANDOC"; then

make/autoconf/basic_windows.m4

@@ -24,97 +24,160 @@
 #
 
 # Setup basic configuration paths, and platform-specific stuff related to PATHs.
-AC_DEFUN([BASIC_CHECK_PATHS_WINDOWS],
+AC_DEFUN([BASIC_SETUP_PATHS_WINDOWS],
 [
-  SRC_ROOT_LENGTH=`$THEPWDCMD -L|$WC -m`
-  if test $SRC_ROOT_LENGTH -gt 100; then
-    AC_MSG_ERROR([Your base path is too long. It is $SRC_ROOT_LENGTH characters long, but only 100 is supported])
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
+    # Clarify if it is wsl1 or wsl2, and use that as OS_ENV from this point forward
+    $PATHTOOL -w / > /dev/null 2>&1
+    if test $? -ne 0; then
+      # Without Windows access to our root, it's definitely WSL1
+      OPENJDK_BUILD_OS_ENV=windows.wsl1
+    else
+      # This test is not guaranteed, but there is no documented way of
+      # distinguishing between WSL1 and WSL2. Assume only WSL2 has WSL_INTEROP
+      # in /run/WSL
+      if test -d "/run/WSL" ; then
+        OPENJDK_BUILD_OS_ENV=windows.wsl2
+      else
+        OPENJDK_BUILD_OS_ENV=windows.wsl1
+      fi
+    fi
+    # This is a bit silly since we really don't have a target env as such,
+    # but do it to keep consistency.
+    OPENJDK_TARGET_OS_ENV=$OPENJDK_BUILD_OS_ENV
   fi
 
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys2"; then
+    # Must be done prior to calling any commands to avoid mangling of command line
+    export MSYS2_ARG_CONV_EXCL="*"
+  fi
+
+  AC_MSG_CHECKING([Windows environment type])
+  WINENV_VENDOR=${OPENJDK_BUILD_OS_ENV#windows.}
+  AC_MSG_RESULT([$WINENV_VENDOR])
+
+  if test "x$WINENV_VENDOR" = x; then
+    AC_MSG_ERROR([Unknown Windows environment. Neither cygwin, msys2, wsl1 nor wsl2 was detected.])
+  fi
+
+  if test "x$PATHTOOL" = x; then
+    AC_MSG_ERROR([Incorrect $WINENV_VENDOR installation. Neither cygpath nor wslpath was found])
+  fi
+
+  if test "x$CMD" = x; then
+    AC_MSG_ERROR([Incorrect Windows/$WINENV_VENDOR setup. Could not locate cmd.exe])
+  fi
+
+  AC_MSG_CHECKING([$WINENV_VENDOR drive prefix])
+  WINENV_PREFIX=`$PATHTOOL -u c:/ | $SED -e 's!/c/!!'`
+  AC_MSG_RESULT(['$WINENV_PREFIX'])
+  AC_SUBST(WINENV_PREFIX)
+
+  AC_MSG_CHECKING([$WINENV_VENDOR root directory as Windows path])
+  if test "x$OPENJDK_BUILD_OS_ENV" != "xwindows.wsl1"; then
+    WINENV_ROOT=`$PATHTOOL -w / 2> /dev/null`
+    # msys2 has a trailing backslash; strip it
+    WINENV_ROOT=${WINENV_ROOT%\\}
+  else
+    WINENV_ROOT='[[unavailable]]'
+  fi
+  AC_MSG_RESULT(['$WINENV_ROOT'])
+  AC_SUBST(WINENV_ROOT)
+
+  AC_MSG_CHECKING([$WINENV_VENDOR temp directory])
+  WINENV_TEMP_DIR=$($PATHTOOL -u $($CMD /q /c echo %TEMP% 2> /dev/null) | $TR -d '\r\n')
+  AC_MSG_RESULT([$WINENV_TEMP_DIR])
+
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl2"; then
+    # Don't trust the current directory for WSL2, but change to an OK temp dir
+    cd "$WINENV_TEMP_DIR"
+    # Bring along confdefs.h or autoconf gets all confused
+    cp "$CONFIGURE_START_DIR/confdefs.h" "$WINENV_TEMP_DIR"
+  fi
+
+  AC_MSG_CHECKING([$WINENV_VENDOR release])
+  WINENV_UNAME_RELEASE=`$UNAME -r`
+  AC_MSG_RESULT([$WINENV_UNAME_RELEASE])
+
+  AC_MSG_CHECKING([$WINENV_VENDOR version])
+  WINENV_UNAME_VERSION=`$UNAME -v`
+  AC_MSG_RESULT([$WINENV_UNAME_VERSION])
+
+  WINENV_VERSION="$WINENV_UNAME_RELEASE, $WINENV_UNAME_VERSION"
+
   AC_MSG_CHECKING([Windows version])
+
+  # We must change directory to one guaranteed to work, otherwise WSL1
+  # can complain (since it does not have a WINENV_ROOT so it can't access
+  # unix-style paths from Windows.
   # Additional [] needed to keep m4 from mangling shell constructs.
-  [ WINDOWS_VERSION=`$CMD /c ver.exe | $EGREP -o '([0-9]+\.)+[0-9]+'` ]
+  [ WINDOWS_VERSION=`cd $WINENV_TEMP_DIR && $CMD /c ver | $EGREP -o '([0-9]+\.)+[0-9]+'` ]
   AC_MSG_RESULT([$WINDOWS_VERSION])
 
+  # Additional handling per specific env
   if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
-    AC_MSG_CHECKING([cygwin release])
-    CYGWIN_RELEASE=`$UNAME -r`
-    AC_MSG_RESULT([$CYGWIN_RELEASE])
-
-    AC_MSG_CHECKING([cygwin version])
-    CYGWIN_VERSION=`$UNAME -v`
-    AC_MSG_RESULT([$CYGWIN_VERSION])
-
     # Additional [] needed to keep m4 from mangling shell constructs.
-    [ CYGWIN_VERSION_OLD=`$ECHO $CYGWIN_RELEASE | $GREP -e '^1\.[0-6]'` ]
+    [ CYGWIN_VERSION_OLD=`$ECHO $WINENV_UNAME_RELEASE | $GREP -e '^1\.[0-6]'` ]
     if test "x$CYGWIN_VERSION_OLD" != x; then
       AC_MSG_NOTICE([Your cygwin is too old. You are running $CYGWIN_RELEASE, but at least cygwin 1.7 is required. Please upgrade.])
       AC_MSG_ERROR([Cannot continue])
     fi
-
-    WINDOWS_ENV_VENDOR='cygwin'
-    WINDOWS_ENV_VERSION="$CYGWIN_RELEASE, $CYGWIN_VERSION"
-
-    if test "x$CYGPATH" = x; then
-      AC_MSG_ERROR([Something is wrong with your cygwin installation since I cannot find cygpath.exe in your path])
+    if test "x$LDD" = x; then
+      AC_MSG_ERROR([ldd is missing, which is needed on cygwin])
     fi
-    AC_MSG_CHECKING([cygwin root directory as unix-style path])
-    # The cmd output ends with Windows line endings (CR/LF)
-    cygwin_winpath_root=`cd / ; cmd /c cd | $TR -d '\r\n'`
-    # Force cygpath to report the proper root by including a trailing space, and then stripping it off again.
-    CYGWIN_ROOT_PATH=`$CYGPATH -u "$cygwin_winpath_root " | $CUT -f 1 -d " "`
-    AC_MSG_RESULT([$CYGWIN_ROOT_PATH])
-    WINDOWS_ENV_ROOT_PATH="$CYGWIN_ROOT_PATH"
-    test_cygdrive_prefix=`$ECHO $CYGWIN_ROOT_PATH | $GREP ^/cygdrive/`
-    if test "x$test_cygdrive_prefix" = x; then
-      AC_MSG_ERROR([Your cygdrive prefix is not /cygdrive. This is currently not supported. Change with mount -c.])
+    WINENV_MARKER_DLL=cygwin1.dll
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys2"; then
+    if test "x$LDD" = x; then
+      AC_MSG_ERROR([ldd is missing, which is needed on msys2])
     fi
-  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-    AC_MSG_CHECKING([msys release])
-    MSYS_RELEASE=`$UNAME -r`
-    AC_MSG_RESULT([$MSYS_RELEASE])
-
-    AC_MSG_CHECKING([msys version])
-    MSYS_VERSION=`$UNAME -v`
-    AC_MSG_RESULT([$MSYS_VERSION])
-
-    WINDOWS_ENV_VENDOR='msys'
-    WINDOWS_ENV_VERSION="$MSYS_RELEASE, $MSYS_VERSION"
-
-    AC_MSG_CHECKING([msys root directory as unix-style path])
-    # The cmd output ends with Windows line endings (CR/LF), the grep command will strip that away
-    MSYS_ROOT_PATH=`cd / ; cmd /c cd | $GREP ".*"`
-    UTIL_REWRITE_AS_UNIX_PATH(MSYS_ROOT_PATH)
-    AC_MSG_RESULT([$MSYS_ROOT_PATH])
-    WINDOWS_ENV_ROOT_PATH="$MSYS_ROOT_PATH"
-  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-
-    AC_MSG_CHECKING([WSL kernel version])
-    WSL_KERNEL_VERSION=`$UNAME -v`
-    AC_MSG_RESULT([$WSL_KERNEL_VERSION])
-
-    AC_MSG_CHECKING([WSL kernel release])
-    WSL_KERNEL_RELEASE=`$UNAME -r`
-    AC_MSG_RESULT([$WSL_KERNEL_RELEASE])
-
-    AC_MSG_CHECKING([WSL distribution])
+    WINENV_MARKER_DLL=msys-2.0.dll
+  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl1" || test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl2"; then
+    AC_MSG_CHECKING([wsl distribution])
     WSL_DISTRIBUTION=`$LSB_RELEASE -d | sed 's/Description:\t//'`
     AC_MSG_RESULT([$WSL_DISTRIBUTION])
 
-    WINDOWS_ENV_VENDOR='wsl'
-    WINDOWS_ENV_VERSION="$WSL_KERNEL_RELEASE, $WSL_KERNEL_VERSION ($WSL_DISTRIBUTION)"
-  else
-    AC_MSG_ERROR([Unknown Windows environment. Neither cygwin, msys, nor wsl was detected.])
+    WINENV_VERSION="$WINENV_VERSION ($WSL_DISTRIBUTION)"
+
+    # Tell WSL to automatically translate the PATH variable
+    export WSLENV=PATH/l
   fi
 
-  # Test if windows or unix (cygwin/msys) find is first in path.
+  # Chicken and egg: FIXPATH is needed for UTIL_FIXUP_PATH to work. So for the
+  # first run we use the auto-detect abilities of fixpath.sh.
+  FIXPATH_DIR="$TOPDIR/make/scripts"
+  FIXPATH="$BASH $FIXPATH_DIR/fixpath.sh exec"
+  FIXPATH_BASE="$BASH $FIXPATH_DIR/fixpath.sh"
+  FIXPATH_SAVED_PATH="$PATH"
+  UTIL_FIXUP_PATH(FIXPATH_DIR)
+
+  # Now we can use FIXPATH_DIR to rewrite path to fixpath.sh properly.
+  if test "x$WINENV_PREFIX" = x; then
+    # On msys the prefix is empty, but we need to pass something to have the
+    # fixpath.sh options parser happy.
+    WINENV_PREFIX_ARG="NONE"
+  else
+    WINENV_PREFIX_ARG="$WINENV_PREFIX"
+  fi
+  FIXPATH_ARGS="-e $PATHTOOL -p $WINENV_PREFIX_ARG -r ${WINENV_ROOT//\\/\\\\}  -t $WINENV_TEMP_DIR -c $CMD -q"
+  FIXPATH_BASE="$BASH $FIXPATH_DIR/fixpath.sh $FIXPATH_ARGS"
+  FIXPATH="$FIXPATH_BASE exec"
+
+  AC_SUBST(FIXPATH_BASE)
+  AC_SUBST(FIXPATH)
+
+  SRC_ROOT_LENGTH=`$ECHO "$TOPDIR" | $WC -m`
+  if test $SRC_ROOT_LENGTH -gt 100; then
+    AC_MSG_ERROR([Your base path is too long. It is $SRC_ROOT_LENGTH characters long, but only 100 is supported])
+  fi
+
+  # Test if windows or unix "find" is first in path.
   AC_MSG_CHECKING([what kind of 'find' is first on the PATH])
   FIND_BINARY_OUTPUT=`find --version 2>&1`
   if test "x`echo $FIND_BINARY_OUTPUT | $GREP GNU`" != x; then
     AC_MSG_RESULT([unix style])
   elif test "x`echo $FIND_BINARY_OUTPUT | $GREP FIND`" != x; then
     AC_MSG_RESULT([Windows])
-    AC_MSG_NOTICE([Your path contains Windows tools (C:\Windows\system32) before your unix (cygwin or msys) tools.])
+    AC_MSG_NOTICE([Your path contains Windows tools (C:\Windows\system32) before your unix tools.])
     AC_MSG_NOTICE([This will not work. Please correct and make sure /usr/bin (or similar) is first in path.])
     AC_MSG_ERROR([Cannot continue])
   else
@@ -123,73 +186,39 @@ AC_DEFUN([BASIC_CHECK_PATHS_WINDOWS],
   fi
 ])
 
-AC_DEFUN_ONCE([BASIC_COMPILE_FIXPATH],
+# Verify that the directory is usable on Windows
+AC_DEFUN([BASIC_WINDOWS_VERIFY_DIR],
 [
-  # When using cygwin or msys, we need a wrapper binary that renames
-  # /cygdrive/c/ arguments into c:/ arguments and peeks into
-  # @files and rewrites these too! This wrapper binary is
-  # called fixpath.
-  FIXPATH=
-  if test "x$OPENJDK_BUILD_OS" = xwindows; then
-    AC_MSG_CHECKING([if fixpath can be created])
-    FIXPATH_SRC="$TOPDIR/make/src/native/fixpath.c"
-    FIXPATH_BIN="$CONFIGURESUPPORT_OUTPUTDIR/bin/fixpath.exe"
-    FIXPATH_DIR="$CONFIGURESUPPORT_OUTPUTDIR/fixpath"
-    if test "x$OPENJDK_BUILD_OS_ENV" = xwindows.cygwin; then
-      # Important to keep the .exe suffix on Cygwin for Hotspot makefiles
-      FIXPATH="$FIXPATH_BIN -c"
-    elif test "x$OPENJDK_BUILD_OS_ENV" = xwindows.msys; then
-      # Take all collected prefixes and turn them into a -m/c/foo@/c/bar@... command line
-      # @ was chosen as separator to minimize risk of other tools messing around with it
-      all_unique_prefixes=`echo "${all_fixpath_prefixes@<:@@@:>@}" \
-          | tr ' ' '\n' | $GREP '^/./' | $SORT | $UNIQ`
-      fixpath_argument_list=`echo $all_unique_prefixes  | tr ' ' '@'`
-      FIXPATH="$FIXPATH_BIN -m$fixpath_argument_list"
-    elif test "x$OPENJDK_BUILD_OS_ENV" = xwindows.wsl; then
-      FIXPATH="$FIXPATH_BIN -w"
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl1"; then
+    OUTPUTDIR_WIN=`$FIXPATH_BASE print $1`
+    if test "x$OUTPUTDIR_WIN" = x; then
+      AC_MSG_NOTICE([For wsl1, the $2 dir must be located on a Windows drive. Please see doc/building.md for details.])
+      AC_MSG_ERROR([Cannot continue])
     fi
-    FIXPATH_SRC_W="$FIXPATH_SRC"
-    FIXPATH_BIN_W="$FIXPATH_BIN"
-    $RM -rf $FIXPATH_BIN $FIXPATH_DIR
-    $MKDIR -p $FIXPATH_DIR $CONFIGURESUPPORT_OUTPUTDIR/bin
-    UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([FIXPATH_SRC_W])
-    UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([FIXPATH_BIN_W])
-    cd $FIXPATH_DIR
-    $CC $FIXPATH_SRC_W -Fe$FIXPATH_BIN_W > $FIXPATH_DIR/fixpath1.log 2>&1
-    cd $CONFIGURE_START_DIR
-
-    if test ! -x $FIXPATH_BIN; then
-      AC_MSG_RESULT([no])
-      cat $FIXPATH_DIR/fixpath1.log
-      AC_MSG_ERROR([Could not create $FIXPATH_BIN])
-    fi
-    AC_MSG_RESULT([yes])
-
-    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-      OLD_WSLENV="$WSLENV"
-      WSLENV=`$ECHO $WSLENV | $SED 's/PATH\/l://'`
-      UTIL_APPEND_TO_PATH(WSLENV, "FIXPATH_PATH")
-      export WSLENV
-      export FIXPATH_PATH=$VS_PATH_WINDOWS
-      AC_MSG_NOTICE([FIXPATH_PATH is $FIXPATH_PATH])
-      AC_MSG_NOTICE([Rewriting WSLENV from $OLD_WSLENV to $WSLENV])
-    fi
-
-    AC_MSG_CHECKING([if fixpath.exe works])
-    cd $FIXPATH_DIR
-    $FIXPATH $CC $FIXPATH_SRC -Fe$FIXPATH_DIR/fixpath2.exe \
-        > $FIXPATH_DIR/fixpath2.log 2>&1
-    cd $CONFIGURE_START_DIR
-    if test ! -x $FIXPATH_DIR/fixpath2.exe; then
-      AC_MSG_RESULT([no])
-      cat $FIXPATH_DIR/fixpath2.log
-      AC_MSG_ERROR([fixpath did not work!])
-    fi
-    AC_MSG_RESULT([yes])
-
-    FIXPATH_DETACH_FLAG="--detach"
   fi
-
-  AC_SUBST(FIXPATH)
-  AC_SUBST(FIXPATH_DETACH_FLAG)
+])
+
+# Create fixpath wrapper
+AC_DEFUN([BASIC_WINDOWS_FINALIZE_FIXPATH],
+[
+  if test "x$OPENJDK_BUILD_OS" = xwindows; then
+    FIXPATH_CMDLINE=". $TOPDIR/make/scripts/fixpath.sh -e $PATHTOOL \
+        -p $WINENV_PREFIX_ARG -r ${WINENV_ROOT//\\/\\\\}  -t $WINENV_TEMP_DIR \
+        -c $CMD -q"
+    $ECHO >  $OUTPUTDIR/fixpath '#!/bin/bash'
+    $ECHO >> $OUTPUTDIR/fixpath export PATH='"[$]PATH:'$PATH'"'
+    $ECHO >> $OUTPUTDIR/fixpath $FIXPATH_CMDLINE '"[$]@"'
+    $CHMOD +x $OUTPUTDIR/fixpath
+    FIXPATH_BASE="$OUTPUTDIR/fixpath"
+    FIXPATH="$FIXPATH_BASE exec"
+  fi
+])
+
+# Platform-specific finalization
+AC_DEFUN([BASIC_WINDOWS_FINALIZE],
+[
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl2"; then
+    # Change back from temp dir
+    cd $CONFIGURE_START_DIR
+  fi
 ])

make/autoconf/boot-jdk.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -63,19 +63,23 @@ AC_DEFUN([BOOTJDK_DO_CHECK],
     # If previous step claimed to have found a JDK, check it to see if it seems to be valid.
     if test "x$BOOT_JDK_FOUND" = xmaybe; then
       # Do we have a bin/java?
-      if test ! -x "$BOOT_JDK/bin/java$EXE_SUFFIX"; then
+      if test ! -x "$BOOT_JDK/bin/java" && test ! -x "$BOOT_JDK/bin/java.exe"; then
         AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK did not contain bin/java; ignoring])
         BOOT_JDK_FOUND=no
       else
         # Do we have a bin/javac?
-        if test ! -x "$BOOT_JDK/bin/javac$EXE_SUFFIX"; then
+        if test ! -x "$BOOT_JDK/bin/javac" && test ! -x "$BOOT_JDK/bin/javac.exe"; then
           AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK did not contain bin/javac; ignoring])
           AC_MSG_NOTICE([(This might be an JRE instead of an JDK)])
           BOOT_JDK_FOUND=no
         else
           # Oh, this is looking good! We probably have found a proper JDK. Is it the correct version?
+          java_to_test="$BOOT_JDK/bin/java"
+          UTIL_FIXUP_EXECUTABLE(java_to_test)
+          BOOT_JDK_VERSION_OUTPUT=`$java_to_test $USER_BOOT_JDK_OPTIONS -version 2>&1`
           # Additional [] needed to keep m4 from mangling shell constructs.
-          [ BOOT_JDK_VERSION=`"$BOOT_JDK/bin/java$EXE_SUFFIX" $USER_BOOT_JDK_OPTIONS -version 2>&1 | $AWK '/version \"[0-9a-zA-Z\._\-]+\"/{print $ 0; exit;}'` ]
+          [ BOOT_JDK_VERSION=`echo $BOOT_JDK_VERSION_OUTPUT | $AWK '/version "[0-9a-zA-Z\._\-]+"/ {print $ 0; exit;}'` ]
+
           if [ [[ "$BOOT_JDK_VERSION" =~ "Picked up" ]] ]; then
             AC_MSG_NOTICE([You have _JAVA_OPTIONS or JAVA_TOOL_OPTIONS set. This can mess up the build. Please use --with-boot-jdk-jvmargs instead.])
             AC_MSG_NOTICE([Java reports: "$BOOT_JDK_VERSION".])
@@ -91,7 +95,12 @@ AC_DEFUN([BOOTJDK_DO_CHECK],
           # Extra M4 quote needed to protect [] in grep expression.
           [FOUND_CORRECT_VERSION=`$ECHO $BOOT_JDK_VERSION \
               | $EGREP "\"(${DEFAULT_ACCEPTABLE_BOOT_VERSIONS// /|})([\.+-].*)?\""`]
-          if test "x$FOUND_CORRECT_VERSION" = x; then
+
+          if test "x$BOOT_JDK_VERSION" = x; then
+            AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK is not a working JDK; ignoring])
+            AC_MSG_NOTICE([Output from java -version was: $BOOT_JDK_VERSION_OUTPUT])
+            BOOT_JDK_FOUND=no
+          elif test "x$FOUND_CORRECT_VERSION" = x; then
             AC_MSG_NOTICE([Potential Boot JDK found at $BOOT_JDK is incorrect JDK version ($BOOT_JDK_VERSION); ignoring])
             AC_MSG_NOTICE([(Your Boot JDK version must be one of: $DEFAULT_ACCEPTABLE_BOOT_VERSIONS)])
             BOOT_JDK_FOUND=no
@@ -102,7 +111,9 @@ AC_DEFUN([BOOTJDK_DO_CHECK],
             AC_MSG_CHECKING([for Boot JDK])
             AC_MSG_RESULT([$BOOT_JDK])
             AC_MSG_CHECKING([Boot JDK version])
-            BOOT_JDK_VERSION=`"$BOOT_JDK/bin/java$EXE_SUFFIX" $USER_BOOT_JDK_OPTIONS -version 2>&1 | $TR '\n\r' '  '`
+            BOOT_JDK_VERSION=`$java_to_test $USER_BOOT_JDK_OPTIONS -version 2>&1 | $TR -d '\r'`
+            # This is not a no-op; it will portably convert newline to space
+            BOOT_JDK_VERSION=`$ECHO $BOOT_JDK_VERSION`
             AC_MSG_RESULT([$BOOT_JDK_VERSION])
           fi # end check jdk version
         fi # end check javac
@@ -151,8 +162,8 @@ AC_DEFUN([BOOTJDK_CHECK_JAVA_HOME],
 [
   if test "x$JAVA_HOME" != x; then
     JAVA_HOME_PROCESSED="$JAVA_HOME"
-    UTIL_FIXUP_PATH(JAVA_HOME_PROCESSED)
-    if test ! -d "$JAVA_HOME_PROCESSED"; then
+    UTIL_FIXUP_PATH(JAVA_HOME_PROCESSED, NOFAIL)
+    if test "x$JAVA_HOME_PROCESSED" = x || test ! -d "$JAVA_HOME_PROCESSED"; then
       AC_MSG_NOTICE([Your JAVA_HOME points to a non-existing directory!])
     else
       # Aha, the user has set a JAVA_HOME
@@ -167,8 +178,8 @@ AC_DEFUN([BOOTJDK_CHECK_JAVA_HOME],
 # Test: Is there a java or javac in the PATH, which is a symlink to the JDK?
 AC_DEFUN([BOOTJDK_CHECK_JAVA_IN_PATH_IS_SYMLINK],
 [
-  AC_PATH_PROG(JAVAC_CHECK, javac)
-  AC_PATH_PROG(JAVA_CHECK, java)
+  UTIL_LOOKUP_PROGS(JAVAC_CHECK, javac, , NOFIXPATH)
+  UTIL_LOOKUP_PROGS(JAVA_CHECK, java, , NOFIXPATH)
   BINARY="$JAVAC_CHECK"
   if test "x$JAVAC_CHECK" = x; then
     BINARY="$JAVA_CHECK"
@@ -207,9 +218,9 @@ AC_DEFUN([BOOTJDK_CHECK_MACOSX_JAVA_LOCATOR],
     # First check at user selected default
     BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME()])
     # If that did not work out (e.g. too old), try explicit versions instead
-    BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME([-v 1.9])])
-    BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME([-v 1.8])])
-    BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME([-v 1.7])])
+    for ver in $DEFAULT_ACCEPTABLE_BOOT_VERSIONS ; do
+      BOOTJDK_DO_CHECK([BOOTJDK_CHECK_LIBEXEC_JAVA_HOME([-v $ver])])
+    done
   fi
 ])
 
@@ -242,8 +253,10 @@ AC_DEFUN([BOOTJDK_FIND_BEST_JDK_IN_WINDOWS_VIRTUAL_DIRECTORY],
 [
   if test "x[$]$1" != x; then
     VIRTUAL_DIR="[$]$1/Java"
-    UTIL_REWRITE_AS_UNIX_PATH(VIRTUAL_DIR)
-    BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY($VIRTUAL_DIR)
+    UTIL_FIXUP_PATH(VIRTUAL_DIR, NOFAIL)
+    if test "x$VIRTUAL_DIR" != x; then
+      BOOTJDK_FIND_BEST_JDK_IN_DIRECTORY($VIRTUAL_DIR)
+    fi
   fi
 ])
 
@@ -270,16 +283,17 @@ AC_DEFUN([BOOTJDK_CHECK_WELL_KNOWN_LOCATIONS],
 AC_DEFUN([BOOTJDK_CHECK_TOOL_IN_BOOTJDK],
 [
   # Use user overridden value if available, otherwise locate tool in the Boot JDK.
-  UTIL_SETUP_TOOL($1,
+  UTIL_REQUIRE_SPECIAL($1,
     [
-      AC_MSG_CHECKING([for $2 in Boot JDK])
+      AC_MSG_CHECKING([for $2 [[Boot JDK]]])
       $1=$BOOT_JDK/bin/$2
-      if test ! -x [$]$1; then
+      if test ! -x [$]$1 && test ! -x [$]$1.exe; then
         AC_MSG_RESULT(not found)
         AC_MSG_NOTICE([Your Boot JDK seems broken. This might be fixed by explicitly setting --with-boot-jdk])
         AC_MSG_ERROR([Could not find $2 in the Boot JDK])
       fi
-      AC_MSG_RESULT(ok)
+      AC_MSG_RESULT(\[$]BOOT_JDK/bin/$2)
+      UTIL_FIXUP_EXECUTABLE($1)
       AC_SUBST($1)
     ])
 ])
@@ -313,12 +327,12 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK],
     AC_MSG_ERROR([The path given by --with-boot-jdk does not contain a valid Boot JDK])
   fi
 
-  # Test: On MacOS X, can we find a boot jdk using /usr/libexec/java_home?
-  BOOTJDK_DO_CHECK([BOOTJDK_CHECK_MACOSX_JAVA_LOCATOR])
-
   # Test: Is $JAVA_HOME set?
   BOOTJDK_DO_CHECK([BOOTJDK_CHECK_JAVA_HOME])
 
+  # Test: On MacOS X, can we find a boot jdk using /usr/libexec/java_home?
+  BOOTJDK_DO_CHECK([BOOTJDK_CHECK_MACOSX_JAVA_LOCATOR])
+
   # Test: Is there a java or javac in the PATH, which is a symlink to the JDK?
   BOOTJDK_DO_CHECK([BOOTJDK_CHECK_JAVA_IN_PATH_IS_SYMLINK])
 
@@ -336,11 +350,10 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK],
   AC_SUBST(BOOT_JDK)
 
   # Setup tools from the Boot JDK.
-  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVA, java$EXE_SUFFIX)
-  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVAC, javac$EXE_SUFFIX)
-  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVADOC, javadoc$EXE_SUFFIX)
-  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAR, jar$EXE_SUFFIX)
-  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JARSIGNER, jarsigner$EXE_SUFFIX)
+  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVA, java)
+  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVAC, javac)
+  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAVADOC, javadoc)
+  BOOTJDK_CHECK_TOOL_IN_BOOTJDK(JAR, jar)
 
   # Finally, set some other options...
 
@@ -353,7 +366,7 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK],
   AC_SUBST(BOOT_JDK_SOURCETARGET)
 
   # Check if the boot jdk is 32 or 64 bit
-  if "$JAVA" -version 2>&1 | $GREP -q "64-Bit"; then
+  if $JAVA -version 2>&1 | $GREP -q "64-Bit"; then
     BOOT_JDK_BITS="64"
   else
     BOOT_JDK_BITS="32"
@@ -368,7 +381,7 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK],
 
   if test "x$boot_jdk_cds_args" != x; then
     # Try creating a CDS archive
-    "$JAVA" $boot_jdk_cds_args -Xshare:dump > /dev/null 2>&1
+    $JAVA $boot_jdk_cds_args -Xshare:dump > /dev/null 2>&1
     if test $? -eq 0; then
       BOOTJDK_USE_LOCAL_CDS=true
       AC_MSG_RESULT([yes, created])
@@ -516,7 +529,7 @@ AC_DEFUN([BOOTJDK_CHECK_BUILD_JDK],
       else
         # Oh, this is looking good! We probably have found a proper JDK. Is it the correct version?
         # Additional [] needed to keep m4 from mangling shell constructs.
-        [ BUILD_JDK_VERSION=`"$BUILD_JDK/bin/java" -version 2>&1 | $AWK '/version \"[0-9a-zA-Z\._\-]+\"/{print $ 0; exit;}'` ]
+        [ BUILD_JDK_VERSION=`"$BUILD_JDK/bin/java" -version 2>&1 | $AWK '/version "[0-9a-zA-Z\._\-]+"/ {print $ 0; exit;}'` ]
 
         # Extra M4 quote needed to protect [] in grep expression.
         [FOUND_CORRECT_VERSION=`echo $BUILD_JDK_VERSION | $EGREP "\"$VERSION_FEATURE([\.+-].*)?\""`]
@@ -574,8 +587,12 @@ AC_DEFUN([BOOTJDK_SETUP_BUILD_JDK],
     fi
   fi
 
+  # Since these tools do not yet exist, we cannot use UTIL_FIXUP_EXECUTABLE to
+  # detect the need of fixpath
   JMOD="$BUILD_JDK/bin/jmod"
+  UTIL_ADD_FIXPATH(JMOD)
   JLINK="$BUILD_JDK/bin/jlink"
+  UTIL_ADD_FIXPATH(JLINK)
   AC_SUBST(JMOD)
   AC_SUBST(JLINK)
 
@@ -589,3 +606,28 @@ AC_DEFUN([BOOTJDK_SETUP_BUILD_JDK],
   AC_SUBST(BUILD_JDK)
   AC_SUBST(EXTERNAL_BUILDJDK)
 ])
+
+# The docs-reference JDK is used to run javadoc for the docs-reference targets.
+# If not set, the reference docs will be built using the interim javadoc.
+AC_DEFUN([BOOTJDK_SETUP_DOCS_REFERENCE_JDK],
+[
+  AC_ARG_WITH(docs-reference-jdk, [AS_HELP_STRING([--with-docs-reference-jdk],
+      [path to JDK to use for building the reference documentation])])
+
+  AC_MSG_CHECKING([for docs-reference JDK])
+  if test "x$with_docs_reference_jdk" != "x"; then
+    DOCS_REFERENCE_JDK="$with_docs_reference_jdk"
+    AC_MSG_RESULT([$DOCS_REFERENCE_JDK])
+    DOCS_REFERENCE_JAVADOC="$DOCS_REFERENCE_JDK/bin/javadoc"
+    if test ! -x "$DOCS_REFERENCE_JAVADOC"; then
+      AC_MSG_ERROR([docs-reference JDK found at $DOCS_REFERENCE_JDK did not contain bin/javadoc])
+    fi
+    UTIL_FIXUP_EXECUTABLE(DOCS_REFERENCE_JAVADOC)
+  else
+    AC_MSG_RESULT([no, using interim javadoc for the docs-reference targets])
+    # By leaving this empty, Docs.gmk will revert to the default interim javadoc
+    DOCS_REFERENCE_JAVADOC=
+  fi
+
+  AC_SUBST(DOCS_REFERENCE_JAVADOC)
+])

make/autoconf/bootcycle-spec.gmk.in

@@ -28,14 +28,6 @@
 # First include the real base spec.gmk file
 include @SPEC@
 
-# Check that the user did not try to specify a different java to use for compiling.
-# On windows we need to account for fixpath being first word.
-ifeq ($(firstword $(JAVA)),$(FIXPATH))
-  JAVA_EXEC_POS=2
-else
-  JAVA_EXEC_POS=1
-endif
-
 # Override specific values to do a boot cycle build
 
 # Use a different Boot JDK
@@ -47,10 +39,9 @@ OUTPUTDIR:=$(OLD_OUTPUTDIR)/bootcycle-build
 # No spaces in patsubst to avoid leading space in variable
 JAVAC_SERVER_DIR:=$(patsubst $(OLD_OUTPUTDIR)%,$(OUTPUTDIR)%,$(JAVAC_SERVER_DIR))
 
-JAVA_CMD:=$(BOOT_JDK)/bin/java
-JAVAC_CMD:=$(BOOT_JDK)/bin/javac
-JAR_CMD:=$(BOOT_JDK)/bin/jar
-JARSIGNER_CMD:=$(BOOT_JDK)/bin/jarsigner
+JAVA_CMD := $(FIXPATH) $(BOOT_JDK)/bin/java
+JAVAC_CMD := $(FIXPATH) $(BOOT_JDK)/bin/javac
+JAR_CMD := $(FIXPATH) $(BOOT_JDK)/bin/jar
 # The bootcycle JVM arguments may differ from the original boot jdk.
 JAVA_FLAGS_BIG := @BOOTCYCLE_JVM_ARGS_BIG@
 # Any CDS settings generated for the bootjdk are invalid in the bootcycle build.
@@ -58,5 +49,3 @@ JAVA_FLAGS_BIG := @BOOTCYCLE_JVM_ARGS_BIG@
 # settings for CDS.
 JAVA_FLAGS := $(filter-out -XX:SharedArchiveFile% -Xshare%, $(JAVA_FLAGS))
 
-# Pandoc cannot be used without the jjs plugin, which was removed with Nashorn.
-ENABLE_PANDOC := false

make/autoconf/build-aux/config.guess

@@ -1,6 +1,7 @@
 #!/bin/sh
 #
-# Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2012, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2021, Azul Systems, Inc. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -30,6 +31,17 @@
 DIR=`dirname $0`
 OUT=`. $DIR/autoconf-config.guess`
 
+# Detect C library.
+# Use '-gnu'  suffix on systems that use glibc.
+# Use '-musl' suffix on systems that use the musl libc.
+echo $OUT | grep -- -linux- > /dev/null 2> /dev/null
+if test $? = 0; then
+  libc_vendor=`ldd --version 2>&1 | sed -n '1s/.*\(musl\).*/\1/p'`
+  if [ x"${libc_vendor}" = x"musl" ]; then
+    OUT=`echo $OUT | sed 's/-gnu/-musl/'`
+  fi
+fi
+
 # Test and fix cygwin on x86_64
 echo $OUT | grep 86-pc-cygwin > /dev/null 2> /dev/null
 if test $? != 0; then
@@ -45,11 +57,11 @@ if test $? = 0; then
 fi
 
 # Test and fix wsl
-echo $OUT | grep x86_64-unknown-linux-gnu > /dev/null 2> /dev/null
+echo $OUT | grep unknown-linux-gnu > /dev/null 2> /dev/null
 if test $? = 0; then
   uname -r | grep -i microsoft > /dev/null 2> /dev/null
   if test $? = 0; then
-    OUT="x86_64-pc-wsl"
+    OUT=`echo $OUT | sed -e 's/unknown-linux-gnu/pc-wsl/'`
   fi
 fi
 
@@ -90,6 +102,18 @@ if [ "x$OUT" = x ]; then
   fi
 fi
 
+# Test and fix cpu on macos-aarch64, uname -p reports arm, buildsys expects aarch64
+echo $OUT | grep arm-apple-darwin > /dev/null 2> /dev/null
+if test $? != 0; then
+  # The GNU version of uname may be on the PATH which reports arm64 instead
+  echo $OUT | grep arm64-apple-darwin > /dev/null 2> /dev/null
+fi
+if test $? = 0; then
+  if [ `uname -m` = arm64 ]; then
+    OUT=aarch64`echo $OUT | sed -e 's/[^-]*//'`
+  fi
+fi
+
 # Test and fix cpu on Macosx when C preprocessor is not on the path
 echo $OUT | grep i386-apple-darwin > /dev/null 2> /dev/null
 if test $? = 0; then

make/autoconf/build-aux/config.sub

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -29,8 +29,19 @@
 
 DIR=`dirname $0`
 
+if echo $* | grep linux-musl >/dev/null ; then
+    echo $*
+    exit
+fi
+
 # Allow wsl
-if echo $* | grep x86_64-pc-wsl >/dev/null ; then
+if echo $* | grep pc-wsl >/dev/null ; then
+    echo $*
+    exit
+fi
+
+# Allow msys2
+if echo $* | grep pc-msys >/dev/null ; then
     echo $*
     exit
 fi
@@ -44,7 +55,7 @@ if ! echo $* | grep '^aarch64-' >/dev/null ; then
 fi
 
 while test $# -gt 0 ; do
-    case $1 in 
+    case $1 in
         -- )   # Stop option processing
             shift; break ;;
         aarch64-* )

make/autoconf/build-performance.m4

@@ -175,7 +175,7 @@ AC_DEFUN([BPERF_SETUP_CCACHE],
   if test "x$TOOLCHAIN_PATH" != x; then
     PATH=$TOOLCHAIN_PATH:$PATH
   fi
-  UTIL_PATH_PROGS(CCACHE, ccache)
+  UTIL_LOOKUP_PROGS(CCACHE, ccache)
   PATH="$OLD_PATH"
 
   AC_MSG_CHECKING([if ccache is available])

make/autoconf/buildjdk-spec.gmk.in

@@ -54,11 +54,13 @@ IMAGES_OUTPUTDIR := $(patsubst $(OUTPUTDIR)%,$(BUILDJDK_OUTPUTDIR)%,$(IMAGES_OUT
 
 OPENJDK_BUILD_CPU_LEGACY := @OPENJDK_BUILD_CPU_LEGACY@
 OPENJDK_BUILD_CPU_LEGACY_LIB := @OPENJDK_BUILD_CPU_LEGACY_LIB@
+OPENJDK_BUILD_LIBC := @OPENJDK_BUILD_LIBC@
 OPENJDK_TARGET_CPU := @OPENJDK_BUILD_CPU@
 OPENJDK_TARGET_CPU_ARCH := @OPENJDK_BUILD_CPU_ARCH@
 OPENJDK_TARGET_CPU_BITS := @OPENJDK_BUILD_CPU_BITS@
 OPENJDK_TARGET_CPU_ENDIAN := @OPENJDK_BUILD_CPU_ENDIAN@
 OPENJDK_TARGET_CPU_LEGACY := @OPENJDK_BUILD_CPU_LEGACY@
+OPENJDK_TARGET_LIBC := @OPENJDK_BUILD_LIBC@
 OPENJDK_TARGET_OS_INCLUDE_SUBDIR := @OPENJDK_BUILD_OS_INCLUDE_SUBDIR@
 
 HOTSPOT_TARGET_OS := @HOTSPOT_BUILD_OS@
@@ -66,6 +68,7 @@ HOTSPOT_TARGET_OS_TYPE := @HOTSPOT_BUILD_OS_TYPE@
 HOTSPOT_TARGET_CPU := @HOTSPOT_BUILD_CPU@
 HOTSPOT_TARGET_CPU_ARCH := @HOTSPOT_BUILD_CPU_ARCH@
 HOTSPOT_TARGET_CPU_DEFINE := @HOTSPOT_BUILD_CPU_DEFINE@
+HOTSPOT_TARGET_LIBC := @HOTSPOT_BUILD_LIBC@
 
 CFLAGS_JDKLIB := @OPENJDK_BUILD_CFLAGS_JDKLIB@
 CXXFLAGS_JDKLIB := @OPENJDK_BUILD_CXXFLAGS_JDKLIB@

make/autoconf/compare.sh.in

@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -43,7 +43,7 @@ export CMP="@CMP@"
 export CP="@CP@"
 export CUT="@CUT@"
 export DIFF="@DIFF@"
-export DUMPBIN="@FIXPATH@ @DUMPBIN@"
+export DUMPBIN="@DUMPBIN@"
 export EXPR="@EXPR@"
 export FILE="@FILE@"
 export FIND="@FIND@"
@@ -53,7 +53,6 @@ export LDD="@LDD@"
 export LN="@LN@"
 export MKDIR="@MKDIR@"
 export MV="@MV@"
-export NAWK="@NAWK@"
 export NM="@GNM@"
 export OBJDUMP="@OBJDUMP@"
 export OTOOL="@OTOOL@"
@@ -87,12 +86,10 @@ else
 fi
 
 if [ "$OPENJDK_TARGET_OS" = "windows" ]; then
-  if [ "$OPENJDK_BUILD_OS_ENV" = "windows.wsl" ]; then
-    export FIXPATH_PATH="@VS_PATH_WINDOWS@"
-    export WSLENV="$WSLENV:FIXPATH_PATH:DEBUG_FIXPATH"
-  else
-    export PATH="@VS_PATH@"
+  if [[ $OPENJDK_BUILD_OS_ENV =~ ^windows.wsl ]]; then
+    export WSLENV=PATH/l
   fi
+  export PATH="$PATH:@TOOLCHAIN_PATH@"
 fi
 
 export HOTSPOT_BUILD_TIME="@HOTSPOT_BUILD_TIME@"

make/autoconf/configure

@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2012, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -49,7 +49,7 @@ export LC_ALL=C
 if test "x$CUSTOM_CONFIG_DIR" != x; then
   custom_hook=$CUSTOM_CONFIG_DIR/custom-hook.m4
   if test ! -e $custom_hook; then
-    echo "CUSTOM_CONFIG_DIR not pointing to a proper custom config dir."
+    echo "CUSTOM_CONFIG_DIR ($CUSTOM_CONFIG_DIR) not pointing to a proper custom config dir."
     echo "Error: Cannot continue" 1>&2
     exit 1
   fi
@@ -78,11 +78,12 @@ generated_script="$build_support_dir/generated-configure.sh"
 ###
 
 autoconf_missing_help() {
-  APT_GET="`which apt-get 2> /dev/null | grep -v '^no apt-get in'`"
-  YUM="`which yum 2> /dev/null | grep -v '^no yum in'`"
-  BREW="`which brew 2> /dev/null | grep -v '^no brew in'`"
-  ZYPPER="`which zypper 2> /dev/null | grep -v '^no zypper in'`"
-  CYGWIN="`which cygpath 2> /dev/null | grep -v '^no cygpath in'`"
+  APT_GET="`type -p apt-get 2> /dev/null`"
+  YUM="`type -p yum 2> /dev/null`"
+  BREW="`type -p brew 2> /dev/null`"
+  ZYPPER="`type -p zypper 2> /dev/null`"
+  CYGWIN="`type -p cygpath 2> /dev/null`"
+  UNAMEOUT="`uname 2> /dev/null`"
 
   if test "x$ZYPPER" != x; then
     PKGHANDLER_COMMAND="sudo zypper install autoconf"
@@ -92,6 +93,8 @@ autoconf_missing_help() {
     PKGHANDLER_COMMAND="sudo yum install autoconf"
   elif test "x$BREW" != x; then
     PKGHANDLER_COMMAND="brew install autoconf"
+  elif test "x$UNAMEOUT" == xAIX; then
+    echo "You might be able to fix this by installing autoconf from the 'AIX Toolbox for Linux Applications' (or compile it from the sources)."
   elif test "x$CYGWIN" != x; then
     PKGHANDLER_COMMAND="( cd <location of cygwin setup.exe> && cmd /c setup -q -P autoconf )"
   fi
@@ -111,10 +114,10 @@ generate_configure_script() {
       exit 1
     fi
   else
-    AUTOCONF="`which autoconf 2> /dev/null | grep -v '^no autoconf in'`"
+    AUTOCONF="`type -p autoconf 2> /dev/null`"
     if test "x$AUTOCONF" = x; then
       echo
-      echo "Autoconf is not found on the PATH, and AUTOCONF is not set."
+      echo "Autoconf is not found on the PATH ($PATH), and AUTOCONF is not set."
       echo "You need autoconf to be able to generate a runnable configure script."
       autoconf_missing_help
       echo "Error: Cannot find autoconf" 1>&2

make/autoconf/configure.ac

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -106,6 +106,8 @@ BASIC_SETUP_DEVKIT
 # To properly create a configuration name, we need to have the OpenJDK target
 # and options (variants and debug level) parsed.
 BASIC_SETUP_OUTPUT_DIR
+# After we have the output dir we can finalize the fixpath wrapper
+BASIC_WINDOWS_FINALIZE_FIXPATH
 
 # Must be done before we can call HELP_MSG_MISSING_DEPENDENCY.
 HELP_SETUP_DEPENDENCY_HELP
@@ -142,6 +144,7 @@ JDKVER_SETUP_JDK_VERSION_NUMBERS
 
 BOOTJDK_SETUP_BOOT_JDK
 BOOTJDK_SETUP_BUILD_JDK
+BOOTJDK_SETUP_DOCS_REFERENCE_JDK
 
 ###############################################################################
 #
@@ -203,7 +206,8 @@ FLAGS_POST_TOOLCHAIN
 PLATFORM_SETUP_OPENJDK_TARGET_BITS
 PLATFORM_SETUP_OPENJDK_TARGET_ENDIANNESS
 
-# Configure flags for the tools
+# Configure flags for the tools. Need to know if we should build reproducible.
+JDKOPT_SETUP_REPRODUCIBLE_BUILD
 FLAGS_SETUP_FLAGS
 
 # Setup debug symbols (need objcopy from the toolchain for that)
@@ -219,9 +223,6 @@ JDKOPT_SETUP_ADDRESS_SANITIZER
 #
 ###############################################################################
 
-# After we have toolchain, we can compile fixpath. It's needed by the lib checks.
-BASIC_COMPILE_FIXPATH
-
 LIB_DETERMINE_DEPENDENCIES
 LIB_SETUP_LIBRARIES
 
@@ -242,13 +243,12 @@ HOTSPOT_SETUP_MISC
 #
 ###############################################################################
 
-JDKOPT_DETECT_INTREE_EC
 JDKOPT_ENABLE_DISABLE_FAILURE_HANDLER
 JDKOPT_ENABLE_DISABLE_GENERATE_CLASSLIST
 JDKOPT_EXCLUDE_TRANSLATIONS
 JDKOPT_ENABLE_DISABLE_MANPAGES
 JDKOPT_ENABLE_DISABLE_CDS_ARCHIVE
-JDKOPT_SETUP_REPRODUCIBLE_BUILD
+JDKOPT_ENABLE_DISABLE_COMPATIBLE_CDS_ALIGNMENT
 
 ###############################################################################
 #
@@ -295,6 +295,7 @@ BASIC_CHECK_LEFTOVER_OVERRIDDEN
 CONFIG_STATUS="$CONFIGURESUPPORT_OUTPUTDIR/config.status"
 
 # Create the actual output files. Now the main work of configure is done.
+BASIC_WINDOWS_FINALIZE
 AC_OUTPUT
 
 # After AC_OUTPUT, we need to do final work

make/autoconf/flags-cflags.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -130,14 +130,20 @@ AC_DEFUN([FLAGS_SETUP_WARNINGS],
   case "${TOOLCHAIN_TYPE}" in
     microsoft)
       DISABLE_WARNING_PREFIX="-wd"
+      BUILD_CC_DISABLE_WARNING_PREFIX="-wd"
       CFLAGS_WARNINGS_ARE_ERRORS="-WX"
 
       WARNINGS_ENABLE_ALL="-W3"
       DISABLED_WARNINGS="4800"
+      if test "x$TOOLCHAIN_VERSION" = x2017; then
+        # VS2017 incorrectly triggers this warning for constexpr
+        DISABLED_WARNINGS+=" 4307"
+      fi
       ;;
 
     gcc)
       DISABLE_WARNING_PREFIX="-Wno-"
+      BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
       CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
 
       # Additional warnings that are not activated by -Wall and -Wextra
@@ -149,7 +155,6 @@ AC_DEFUN([FLAGS_SETUP_WARNINGS],
       WARNINGS_ENABLE_ALL_CXXFLAGS="$WARNINGS_ENABLE_ALL_CFLAGS $WARNINGS_ENABLE_ADDITIONAL_CXX"
 
       DISABLED_WARNINGS="unused-parameter unused"
-      BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
       ;;
 
     clang)
@@ -163,11 +168,6 @@ AC_DEFUN([FLAGS_SETUP_WARNINGS],
 
       DISABLED_WARNINGS="unknown-warning-option unused-parameter unused"
 
-      if test "x$OPENJDK_TARGET_OS" = xmacosx; then
-        # missing-method-return-type triggers in JavaNativeFoundation framework
-        DISABLED_WARNINGS="$DISABLED_WARNINGS missing-method-return-type"
-      fi
-
       ;;
 
     xlc)
@@ -227,8 +227,14 @@ AC_DEFUN([FLAGS_SETUP_OPTIMIZATION],
     # -D_FORTIFY_SOURCE=2 hardening option needs optimization (at least -O1) enabled
     # set for lower O-levels -U_FORTIFY_SOURCE to overwrite previous settings
     if test "x$OPENJDK_TARGET_OS" = xlinux -a "x$DEBUG_LEVEL" = "xfastdebug"; then
-      ENABLE_FORTIFY_CFLAGS="-D_FORTIFY_SOURCE=2"
       DISABLE_FORTIFY_CFLAGS="-U_FORTIFY_SOURCE"
+      # ASan doesn't work well with _FORTIFY_SOURCE
+      # See https://github.com/google/sanitizers/wiki/AddressSanitizer#faq
+      if test "x$ASAN_ENABLED" = xyes; then
+        ENABLE_FORTIFY_CFLAGS="${DISABLE_FORTIFY_CFLAGS}"
+      else
+        ENABLE_FORTIFY_CFLAGS="-D_FORTIFY_SOURCE=2"
+      fi
       C_O_FLAG_HIGHEST_JVM="${C_O_FLAG_HIGHEST_JVM} ${ENABLE_FORTIFY_CFLAGS}"
       C_O_FLAG_HIGHEST="${C_O_FLAG_HIGHEST} ${ENABLE_FORTIFY_CFLAGS}"
       C_O_FLAG_HI="${C_O_FLAG_HI} ${ENABLE_FORTIFY_CFLAGS}"
@@ -512,6 +518,18 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER],
   fi
   TOOLCHAIN_CFLAGS_JDK_CONLY="$LANGSTD_CFLAGS $TOOLCHAIN_CFLAGS_JDK_CONLY"
 
+  # CXXFLAGS C++ language level for all of JDK, including Hotspot.
+  if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang || test "x$TOOLCHAIN_TYPE" = xxlc; then
+    LANGSTD_CXXFLAGS="-std=c++14"
+  elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+    LANGSTD_CXXFLAGS="-std:c++14"
+  else
+    AC_MSG_ERROR([Don't know how to enable C++14 for this toolchain])
+  fi
+  TOOLCHAIN_CFLAGS_JDK_CXXONLY="$TOOLCHAIN_CFLAGS_JDK_CXXONLY $LANGSTD_CXXFLAGS"
+  TOOLCHAIN_CFLAGS_JVM="$TOOLCHAIN_CFLAGS_JVM $LANGSTD_CXXFLAGS"
+  ADLC_LANGSTD_CXXFLAGS="$LANGSTD_CXXFLAGS"
+
   # CFLAGS WARNINGS STUFF
   # Set JVM_CFLAGS warning handling
   if test "x$TOOLCHAIN_TYPE" = xgcc; then
@@ -542,6 +560,11 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER],
     fi
   fi
 
+  OS_CFLAGS="$OS_CFLAGS -DLIBC=$OPENJDK_TARGET_LIBC"
+  if test "x$OPENJDK_TARGET_LIBC" = xmusl; then
+    OS_CFLAGS="$OS_CFLAGS -DMUSL_LIBC"
+  fi
+
   # Where does this really belong??
   if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
     PICFLAG="-fPIC"
@@ -577,25 +600,6 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER],
     fi
   fi
 
-  # Optional POSIX functionality needed by the JVM
-  #
-  # Check if clock_gettime is available and in which library. This indicates
-  # availability of CLOCK_MONOTONIC for hotspot. But we don't need to link, so
-  # don't let it update LIBS.
-  save_LIBS="$LIBS"
-  AC_SEARCH_LIBS(clock_gettime, rt, [HAS_CLOCK_GETTIME=true], [])
-  if test "x$LIBS" = "x-lrt "; then
-    CLOCK_GETTIME_IN_LIBRT=true
-  fi
-  LIBS="$save_LIBS"
-
-  if test "x$HAS_CLOCK_GETTIME" = "xtrue"; then
-    OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DSUPPORTS_CLOCK_MONOTONIC"
-    if test "x$CLOCK_GETTIME_IN_LIBRT" = "xtrue"; then
-      OS_CFLAGS_JVM="$OS_CFLAGS_JVM -DNEEDS_LIBRT"
-    fi
-  fi
-
   # Extra flags needed when building optional static versions of certain
   # JDK libraries.
   STATIC_LIBS_CFLAGS="-DSTATIC_BUILD=1"
@@ -636,21 +640,17 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
   $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DARCH='\"$FLAGS_CPU_LEGACY\"' \
       -D$FLAGS_CPU_LEGACY"
 
-  if test "x$FLAGS_CPU_BITS" = x64; then
-    # -D_LP64=1 is only set on linux and mac. Setting on windows causes diff in
-    # unpack200.exe.
-    if test "x$FLAGS_OS" = xlinux || test "x$FLAGS_OS" = xmacosx; then
-      $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_LP64=1"
-    fi
-    if test "x$FLAGS_OS" != xaix; then
-      # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it.
-      $1_DEFINES_CPU_JVM="${$1_DEFINES_CPU_JVM} -D_LP64=1"
-    fi
+  if test "x$FLAGS_CPU_BITS" = x64 && test "x$FLAGS_OS" != xaix; then
+    # xlc on AIX defines _LP64=1 by default and issues a warning if we redefine it.
+    $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_LP64=1"
+    $1_DEFINES_CPU_JVM="${$1_DEFINES_CPU_JVM} -D_LP64=1"
   fi
 
   # toolchain dependend, per-cpu
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    if test "x$FLAGS_CPU" = xx86_64; then
+    if test "x$FLAGS_CPU" = xaarch64; then
+      $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_ARM64_ -Darm64"
+    elif test "x$FLAGS_CPU" = xx86_64; then
       $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_AMD64_ -Damd64"
     else
       $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_X86_ -Dx86"
@@ -660,9 +660,21 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
   # CFLAGS PER CPU
   if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
     # COMMON to gcc and clang
+    AC_MSG_CHECKING([if $1 is x86])
     if test "x$FLAGS_CPU" = xx86; then
-      # Force compatibility with i586 on 32 bit intel platforms.
-      $1_CFLAGS_CPU="-march=i586"
+      AC_MSG_RESULT([yes])
+      AC_MSG_CHECKING([if control flow protection is enabled by additional compiler flags])
+      if echo "${EXTRA_CFLAGS}${EXTRA_CXXFLAGS}${EXTRA_ASFLAGS}" | ${GREP} -q 'fcf-protection' ; then
+        # cf-protection requires CMOV and thus i686
+        $1_CFLAGS_CPU="-march=i686"
+        AC_MSG_RESULT([yes, forcing ${$1_CFLAGS_CPU}])
+      else
+        # Force compatibility with i586 on 32 bit intel platforms.
+        $1_CFLAGS_CPU="-march=i586"
+        AC_MSG_RESULT([no, forcing ${$1_CFLAGS_CPU}])
+      fi
+    else
+      AC_MSG_RESULT([no])
     fi
   fi
 
@@ -694,13 +706,6 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
       $1_CFLAGS_CPU_JDK="${$1_CFLAGS_CPU_JDK} -fno-omit-frame-pointer"
     fi
 
-    $1_CXXSTD_CXXFLAG="-std=gnu++98"
-    FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${$1_CXXSTD_CXXFLAG}],
-        PREFIX: $3, IF_FALSE: [$1_CXXSTD_CXXFLAG=""])
-    $1_TOOLCHAIN_CFLAGS_JDK_CXXONLY="${$1_CXXSTD_CXXFLAG}"
-    $1_TOOLCHAIN_CFLAGS_JVM="${$1_TOOLCHAIN_CFLAGS_JVM} ${$1_CXXSTD_CXXFLAG}"
-    $2ADLC_CXXFLAG="${$1_CXXSTD_CXXFLAG}"
-
   elif test "x$TOOLCHAIN_TYPE" = xclang; then
     if test "x$FLAGS_OS" = xlinux; then
       # ppc test not really needed for clang
@@ -734,6 +739,18 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
     $1_WARNING_CFLAGS_JVM="-Wno-format-zero-length -Wtype-limits -Wuninitialized"
   fi
 
+  if test "x$TOOLCHAIN_TYPE" = xmicrosoft && test "x$ENABLE_REPRODUCIBLE_BUILD" = xtrue; then
+    # Enabling deterministic creates warnings if __DATE__ or __TIME__ are
+    # used, and since we are, silence that warning.
+    REPRODUCIBLE_CFLAGS="-experimental:deterministic -wd5048"
+    FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${REPRODUCIBLE_CFLAGS}],
+        PREFIX: $3,
+        IF_FALSE: [
+            REPRODUCIBLE_CFLAGS=
+        ]
+    )
+  fi
+
   # Prevent the __FILE__ macro from generating absolute paths into the built
   # binaries. Depending on toolchain, different mitigations are possible.
   # * GCC and Clang of new enough versions have -fmacro-prefix-map.
@@ -752,6 +769,29 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
               FILE_MACRO_CFLAGS=
           ]
       )
+    elif test "x$TOOLCHAIN_TYPE" = xmicrosoft &&
+        test "x$ENABLE_REPRODUCIBLE_BUILD" = xtrue; then
+      # There is a known issue with the pathmap if the mapping is made to the
+      # empty string. Add a minimal string "s" as prefix to work around this.
+      workspace_root_win=`$FIXPATH_BASE print "${WORKSPACE_ROOT%/}"`
+      # PATHMAP_FLAGS is also added to LDFLAGS in flags-ldflags.m4.
+      PATHMAP_FLAGS="-pathmap:${workspace_root_win//\//\\\\}=s \
+          -pathmap:${workspace_root_win}=s"
+      FILE_MACRO_CFLAGS="$PATHMAP_FLAGS"
+      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}],
+          PREFIX: $3,
+          IF_FALSE: [
+              PATHMAP_FLAGS=
+              FILE_MACRO_CFLAGS=
+          ]
+      )
+    fi
+
+    AC_MSG_CHECKING([how to prevent absolute paths in output])
+    if test "x$FILE_MACRO_CFLAGS" != x; then
+      AC_MSG_RESULT([using compiler options])
+    else
+      AC_MSG_RESULT([using relative paths])
     fi
   fi
   AC_SUBST(FILE_MACRO_CFLAGS)
@@ -760,12 +800,13 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
   CFLAGS_JVM_COMMON="$ALWAYS_CFLAGS_JVM $ALWAYS_DEFINES_JVM \
       $TOOLCHAIN_CFLAGS_JVM ${$1_TOOLCHAIN_CFLAGS_JVM} \
       $OS_CFLAGS $OS_CFLAGS_JVM $CFLAGS_OS_DEF_JVM $DEBUG_CFLAGS_JVM \
-      $WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG $FILE_MACRO_CFLAGS"
+      $WARNING_CFLAGS $WARNING_CFLAGS_JVM $JVM_PICFLAG $FILE_MACRO_CFLAGS \
+      $REPRODUCIBLE_CFLAGS"
 
   CFLAGS_JDK_COMMON="$ALWAYS_CFLAGS_JDK $ALWAYS_DEFINES_JDK $TOOLCHAIN_CFLAGS_JDK \
       $OS_CFLAGS $CFLAGS_OS_DEF_JDK $DEBUG_CFLAGS_JDK $DEBUG_OPTIONS_FLAGS_JDK \
       $WARNING_CFLAGS $WARNING_CFLAGS_JDK $DEBUG_SYMBOLS_CFLAGS_JDK \
-      $FILE_MACRO_CFLAGS"
+      $FILE_MACRO_CFLAGS $REPRODUCIBLE_CFLAGS"
 
   # Use ${$2EXTRA_CFLAGS} to block EXTRA_CFLAGS to be added to build flags.
   # (Currently we don't have any OPENJDK_BUILD_EXTRA_CFLAGS, but that might
@@ -795,7 +836,7 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
   AC_SUBST($2CFLAGS_JDKEXE)
   AC_SUBST($2CXXFLAGS_JDKLIB)
   AC_SUBST($2CXXFLAGS_JDKEXE)
-  AC_SUBST($2ADLC_CXXFLAG)
+  AC_SUBST($2ADLC_LANGSTD_CXXFLAGS)
 
   COMPILER_FP_CONTRACT_OFF_FLAG="-ffp-contract=off"
   # Check that the compiler supports -ffp-contract=off flag

make/autoconf/flags-ldflags.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -53,6 +53,7 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS],
 
   LDFLAGS_TESTEXE="${TARGET_LDFLAGS_JDK_LIBPATH}"
   AC_SUBST(LDFLAGS_TESTEXE)
+  AC_SUBST(ADLC_LDFLAGS)
 ])
 
 ################################################################################
@@ -65,11 +66,11 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_HELPER],
     # Add -z,defs, to forbid undefined symbols in object files.
     # add -z,relro (mark relocations read only) for all libs
     # add -z,now ("full relro" - more of the Global Offset Table GOT is marked read only)
-    BASIC_LDFLAGS="-Wl,--hash-style=gnu -Wl,-z,defs -Wl,-z,relro -Wl,-z,now"
+    BASIC_LDFLAGS="-Wl,-z,defs -Wl,-z,relro -Wl,-z,now"
     # Linux : remove unused code+data in link step
     if test "x$ENABLE_LINKTIME_GC" = xtrue; then
       if test "x$OPENJDK_TARGET_CPU" = xs390x; then
-        BASIC_LDFLAGS="$BASIC_LDFLAGS -Wl,--gc-sections -Wl,--print-gc-sections"
+        BASIC_LDFLAGS="$BASIC_LDFLAGS -Wl,--gc-sections"
       else
         BASIC_LDFLAGS_JDK_ONLY="$BASIC_LDFLAGS_JDK_ONLY -Wl,--gc-sections"
       fi
@@ -105,7 +106,7 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_HELPER],
       # Assume clang or gcc.
       # FIXME: We should really generalize SET_SHARED_LIBRARY_ORIGIN instead.
       OS_LDFLAGS_JVM_ONLY="-Wl,-rpath,@loader_path/. -Wl,-rpath,@loader_path/.."
-      OS_LDFLAGS_JDK_ONLY="-mmacosx-version-min=$MACOSX_VERSION_MIN"
+      OS_LDFLAGS="-mmacosx-version-min=$MACOSX_VERSION_MIN"
     fi
   fi
 
@@ -136,9 +137,17 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_HELPER],
     fi
   fi
 
+  if test "x$ENABLE_REPRODUCIBLE_BUILD" = "xtrue"; then
+    if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+      REPRODUCIBLE_LDFLAGS="-experimental:deterministic"
+    fi
+  fi
+
   if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
     if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
       BASIC_LDFLAGS="$BASIC_LDFLAGS -pdbaltpath:%_PDB%"
+      # PATHMAP_FLAGS is setup in flags-cflags.m4.
+      FILE_MACRO_LDFLAGS="${PATHMAP_FLAGS}"
     fi
   fi
 
@@ -163,21 +172,30 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_CPU_DEP],
       $1_CPU_LDFLAGS="$ARM_ARCH_TYPE_FLAGS $ARM_FLOAT_TYPE_FLAGS"
     fi
 
+    # MIPS ABI does not support GNU hash style
+    if test "x${OPENJDK_$1_CPU}" = xmips ||
+       test "x${OPENJDK_$1_CPU}" = xmipsel ||
+       test "x${OPENJDK_$1_CPU}" = xmips64 ||
+       test "x${OPENJDK_$1_CPU}" = xmips64el; then
+      $1_CPU_LDFLAGS="${$1_CPU_LDFLAGS} -Wl,--hash-style=sysv"
+    else
+      $1_CPU_LDFLAGS="${$1_CPU_LDFLAGS} -Wl,--hash-style=gnu"
+    fi
+
   elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+    if test "x${OPENJDK_$1_CPU_BITS}" = "x32"; then
+      $1_CPU_EXECUTABLE_LDFLAGS="-stack:327680"
+    elif test "x${OPENJDK_$1_CPU_BITS}" = "x64"; then
+      $1_CPU_EXECUTABLE_LDFLAGS="-stack:1048576"
+    fi
     if test "x${OPENJDK_$1_CPU}" = "xx86"; then
       $1_CPU_LDFLAGS="-safeseh"
-      # NOTE: Old build added -machine. Probably not needed.
-      $1_CPU_LDFLAGS_JVM_ONLY="-machine:I386"
-      $1_CPU_EXECUTABLE_LDFLAGS="-stack:327680"
-    else
-      $1_CPU_LDFLAGS_JVM_ONLY="-machine:AMD64"
-      $1_CPU_EXECUTABLE_LDFLAGS="-stack:1048576"
     fi
   fi
 
   # JVM_VARIANT_PATH depends on if this is build or target...
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    $1_LDFLAGS_JDK_LIBPATH="-libpath:${OUTPUTDIR}/support/modules_libs/java.base"
+    $1_LDFLAGS_JDK_LIBPATH="-libpath:\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base"
   else
     $1_LDFLAGS_JDK_LIBPATH="-L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base \
         -L\$(SUPPORT_OUTPUTDIR)/modules_libs/java.base/${$1_JVM_VARIANT_PATH}"
@@ -185,15 +203,17 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_CPU_DEP],
 
   # Export variables according to old definitions, prefix with $2 if present.
   LDFLAGS_JDK_COMMON="$BASIC_LDFLAGS $BASIC_LDFLAGS_JDK_ONLY \
-      $OS_LDFLAGS_JDK_ONLY $DEBUGLEVEL_LDFLAGS_JDK_ONLY ${$2EXTRA_LDFLAGS}"
+      $OS_LDFLAGS $DEBUGLEVEL_LDFLAGS_JDK_ONLY ${$2EXTRA_LDFLAGS}"
   $2LDFLAGS_JDKLIB="$LDFLAGS_JDK_COMMON $BASIC_LDFLAGS_JDK_LIB_ONLY \
-      ${$1_LDFLAGS_JDK_LIBPATH} $SHARED_LIBRARY_FLAGS"
+      ${$1_LDFLAGS_JDK_LIBPATH} $SHARED_LIBRARY_FLAGS \
+      $REPRODUCIBLE_LDFLAGS $FILE_MACRO_LDFLAGS"
   $2LDFLAGS_JDKEXE="$LDFLAGS_JDK_COMMON $EXECUTABLE_LDFLAGS \
-      ${$1_CPU_EXECUTABLE_LDFLAGS}"
+      ${$1_CPU_EXECUTABLE_LDFLAGS} $REPRODUCIBLE_LDFLAGS $FILE_MACRO_LDFLAGS"
 
-  $2JVM_LDFLAGS="$BASIC_LDFLAGS $BASIC_LDFLAGS_JVM_ONLY $OS_LDFLAGS_JVM_ONLY \
+  $2JVM_LDFLAGS="$BASIC_LDFLAGS $BASIC_LDFLAGS_JVM_ONLY $OS_LDFLAGS $OS_LDFLAGS_JVM_ONLY \
       $DEBUGLEVEL_LDFLAGS $DEBUGLEVEL_LDFLAGS_JVM_ONLY $BASIC_LDFLAGS_ONLYCXX \
-      ${$1_CPU_LDFLAGS} ${$1_CPU_LDFLAGS_JVM_ONLY} ${$2EXTRA_LDFLAGS}"
+      ${$1_CPU_LDFLAGS} ${$1_CPU_LDFLAGS_JVM_ONLY} ${$2EXTRA_LDFLAGS} \
+      $REPRODUCIBLE_LDFLAGS $FILE_MACRO_LDFLAGS"
 
   AC_SUBST($2LDFLAGS_JDKLIB)
   AC_SUBST($2LDFLAGS_JDKEXE)

make/autoconf/flags-other.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -64,47 +64,38 @@ AC_DEFUN([FLAGS_SETUP_RCFLAGS],
 [
   # On Windows, we need to set RC flags.
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    RC_FLAGS="-nologo -l0x409"
-    JVM_RCFLAGS="-nologo"
+    RCFLAGS="-nologo"
     if test "x$DEBUG_LEVEL" = xrelease; then
-      RC_FLAGS="$RC_FLAGS -DNDEBUG"
-      JVM_RCFLAGS="$JVM_RCFLAGS -DNDEBUG"
+      RCFLAGS="$RCFLAGS -DNDEBUG"
     fi
-
-    # The version variables used to create RC_FLAGS may be overridden
-    # in a custom configure script, or possibly the command line.
-    # Let those variables be expanded at make time in spec.gmk.
-    # The \$ are escaped to the shell, and the $(...) variables
-    # are evaluated by make.
-    RC_FLAGS="$RC_FLAGS \
-        -D\"JDK_VERSION_STRING=\$(VERSION_STRING)\" \
-        -D\"JDK_COMPANY=\$(COMPANY_NAME)\" \
-        -D\"JDK_FILEDESC=\$(JDK_RC_NAME) binary\" \
-        -D\"JDK_VER=\$(VERSION_NUMBER)\" \
-        -D\"JDK_COPYRIGHT=Copyright \xA9 $COPYRIGHT_YEAR\" \
-        -D\"JDK_NAME=\$(JDK_RC_NAME) \$(VERSION_FEATURE)\" \
-        -D\"JDK_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\""
-
-    JVM_RCFLAGS="$JVM_RCFLAGS \
-        -D\"HS_VERSION_STRING=\$(VERSION_STRING)\" \
-        -D\"HS_COMPANY=\$(COMPANY_NAME)\" \
-        -D\"HS_VER=\$(VERSION_NUMBER_FOUR_POSITIONS)\" \
-        -D\"HS_INTERNAL_NAME=jvm\" \
-        -D\"HS_COPYRIGHT=Copyright $COPYRIGHT_YEAR\" \
-        -D\"HS_FNAME=jvm.dll\" \
-        -D\"HS_NAME=\$(PRODUCT_NAME) \$(VERSION_SHORT)\" \
-        -D\"HS_FVER=\$(subst .,\$(COMMA),\$(VERSION_NUMBER_FOUR_POSITIONS))\""
   fi
-  AC_SUBST(RC_FLAGS)
-  AC_SUBST(JVM_RCFLAGS)
+  AC_SUBST(RCFLAGS)
 ])
 
 ################################################################################
 # platform independent
 AC_DEFUN([FLAGS_SETUP_ASFLAGS],
 [
+  if test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then
+    # Force preprocessor to run, just to make sure
+    BASIC_ASFLAGS="-x assembler-with-cpp"
+  elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+    BASIC_ASFLAGS="-nologo -c"
+  fi
+  AC_SUBST(BASIC_ASFLAGS)
+
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
-    JVM_BASIC_ASFLAGS="-x assembler-with-cpp -mno-omit-leaf-frame-pointer -mstack-alignment=16"
+    JVM_BASIC_ASFLAGS="-mno-omit-leaf-frame-pointer -mstack-alignment=16"
+
+    # Fix linker warning.
+    # Code taken from make/autoconf/flags-cflags.m4 and adapted.
+    JVM_BASIC_ASFLAGS+="-DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \
+        -mmacosx-version-min=$MACOSX_VERSION_MIN"
+
+    if test -n "$MACOSX_VERSION_MAX"; then
+        JVM_BASIC_ASFLAGS+="$OS_CFLAGS \
+            -DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS"
+    fi
   fi
 ])
 

make/autoconf/flags.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -125,19 +125,25 @@ AC_DEFUN([FLAGS_SETUP_MACOSX_VERSION],
 [
   # Additional macosx handling
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
+    # The expected format for <version> is either nn.n.n or nn.nn.nn. See
+    # /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/AvailabilityVersions.h
+
     # MACOSX_VERSION_MIN specifies the lowest version of Macosx that the built
     # binaries should be compatible with, even if compiled on a newer version
     # of the OS. It currently has a hard coded value. Setting this also limits
     # exposure to API changes in header files. Bumping this is likely to
     # require code changes to build.
-    MACOSX_VERSION_MIN=10.9.0
+    if test "x$OPENJDK_TARGET_CPU_ARCH" = xaarch64; then
+      MACOSX_VERSION_MIN=11.00.00
+    else
+      MACOSX_VERSION_MIN=10.12.0
+    fi
     MACOSX_VERSION_MIN_NODOTS=${MACOSX_VERSION_MIN//\./}
 
     AC_SUBST(MACOSX_VERSION_MIN)
 
     # Setting --with-macosx-version-max=<version> makes it an error to build or
-    # link to macosx APIs that are newer than the given OS version. The expected
-    # format for <version> is either nn.n.n or nn.nn.nn. See /usr/include/AvailabilityMacros.h.
+    # link to macosx APIs that are newer than the given OS version.
     AC_ARG_WITH([macosx-version-max], [AS_HELP_STRING([--with-macosx-version-max],
         [error on use of newer functionality. @<:@macosx@:>@])],
         [
@@ -218,10 +224,20 @@ AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS],
     # We also need -iframework<path>/System/Library/Frameworks
     $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
     $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks"
-    # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework
-    # set this here so it doesn't have to be peppered throughout the forest
-    $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
-    $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
+    if test -d "[$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" ; then
+      # These always need to be set on macOS 10.X, or we can't find the frameworks embedded in JavaVM.framework
+      # set this here so it doesn't have to be peppered throughout the forest
+      $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
+      $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks"
+    fi
+  fi
+
+  # For the microsoft toolchain, we need to get the SYSROOT flags from the
+  # Visual Studio environment. Currently we cannot handle this as a separate
+  # build toolchain.
+  if test "x$1" = x && test "x$OPENJDK_BUILD_OS" = "xwindows" \
+      && test "x$TOOLCHAIN_TYPE" = "xmicrosoft"; then
+    TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
   fi
 
   AC_SUBST($1SYSROOT_CFLAGS)
@@ -232,6 +248,7 @@ AC_DEFUN_ONCE([FLAGS_PRE_TOOLCHAIN],
 [
   # We should always include user supplied flags
   FLAGS_SETUP_USER_SUPPLIED_FLAGS
+
   # The sysroot flags are needed for configure to be able to run the compilers
   FLAGS_SETUP_SYSROOT_FLAGS
 
@@ -248,6 +265,14 @@ AC_DEFUN_ONCE([FLAGS_PRE_TOOLCHAIN],
     fi
   fi
 
+  if test "x$OPENJDK_TARGET_OS" = xmacosx; then
+    if test "x$OPENJDK_TARGET_CPU" = xaarch64; then
+      MACHINE_FLAG="$MACHINE_FLAG -arch arm64"
+    elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
+      MACHINE_FLAG="$MACHINE_FLAG -arch x86_64"
+    fi
+  fi
+
   # FIXME: global flags are not used yet...
   # The "global" flags will *always* be set. Without them, it is not possible to
   # get a working compilation.
@@ -256,10 +281,6 @@ AC_DEFUN_ONCE([FLAGS_PRE_TOOLCHAIN],
   GLOBAL_LDFLAGS="$MACHINE_FLAG $SYSROOT_LDFLAGS $USER_LDFLAGS"
   # FIXME: Don't really know how to do with this, but this was the old behavior
   GLOBAL_CPPFLAGS="$SYSROOT_CFLAGS"
-  AC_SUBST(GLOBAL_CFLAGS)
-  AC_SUBST(GLOBAL_CXXFLAGS)
-  AC_SUBST(GLOBAL_LDFLAGS)
-  AC_SUBST(GLOBAL_CPPFLAGS)
 
   # FIXME: For compatilibity, export this as EXTRA_CFLAGS for now.
   EXTRA_CFLAGS="$MACHINE_FLAG $USER_CFLAGS"
@@ -278,6 +299,14 @@ AC_DEFUN_ONCE([FLAGS_PRE_TOOLCHAIN],
   CXXFLAGS="$GLOBAL_CXXFLAGS"
   LDFLAGS="$GLOBAL_LDFLAGS"
   CPPFLAGS="$GLOBAL_CPPFLAGS"
+
+  if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+    # When autoconf sends both compiler and linker flags to cl.exe at the same
+    # time, linker flags must be last at the command line. Achieve this by
+    # moving them to LIBS.
+    LIBS="$LIBS -link $LDFLAGS"
+    LDFLAGS=""
+  fi
 ])
 
 AC_DEFUN([FLAGS_SETUP_TOOLCHAIN_CONTROL],
@@ -345,15 +374,13 @@ AC_DEFUN([FLAGS_SETUP_TOOLCHAIN_CONTROL],
 
   # Generate make dependency files
   if test "x$TOOLCHAIN_TYPE" = xgcc; then
-    C_FLAG_DEPS="-MMD -MF"
+    GENDEPS_FLAGS="-MMD -MF"
   elif test "x$TOOLCHAIN_TYPE" = xclang; then
-    C_FLAG_DEPS="-MMD -MF"
+    GENDEPS_FLAGS="-MMD -MF"
   elif test "x$TOOLCHAIN_TYPE" = xxlc; then
-    C_FLAG_DEPS="-qmakedep=gcc -MF"
+    GENDEPS_FLAGS="-qmakedep=gcc -MF"
   fi
-  CXX_FLAG_DEPS="$C_FLAG_DEPS"
-  AC_SUBST(C_FLAG_DEPS)
-  AC_SUBST(CXX_FLAG_DEPS)
+  AC_SUBST(GENDEPS_FLAGS)
 ])
 
 AC_DEFUN_ONCE([FLAGS_POST_TOOLCHAIN],
@@ -368,9 +395,6 @@ AC_DEFUN_ONCE([FLAGS_POST_TOOLCHAIN],
       BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS"
     fi
   fi
-  AC_SUBST(BUILD_SYSROOT_CFLAGS)
-  AC_SUBST(BUILD_SYSROOT_LDFLAGS)
-
 ])
 
 AC_DEFUN([FLAGS_SETUP_FLAGS],

make/autoconf/help.m4

@@ -25,7 +25,7 @@
 
 AC_DEFUN_ONCE([HELP_SETUP_DEPENDENCY_HELP],
 [
-  AC_CHECK_PROGS(PKGHANDLER, zypper apt-get yum brew port pkgutil pkgadd)
+  UTIL_LOOKUP_PROGS(PKGHANDLER, zypper apt-get yum brew port pkgutil pkgadd pacman)
 ])
 
 AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
@@ -38,8 +38,6 @@ AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
     HELP_MSG="OpenJDK distributions are available at http://jdk.java.net/."
   elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
     cygwin_help $MISSING_DEPENDENCY
-  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-    msys_help $MISSING_DEPENDENCY
   else
     PKGHANDLER_COMMAND=
 
@@ -58,6 +56,8 @@ AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
         pkgadd_help  $MISSING_DEPENDENCY ;;
       zypper)
         zypper_help  $MISSING_DEPENDENCY ;;
+      pacman)
+        pacman_help  $MISSING_DEPENDENCY ;;
     esac
 
     if test "x$PKGHANDLER_COMMAND" != x; then
@@ -83,10 +83,6 @@ cygwin_help() {
   esac
 }
 
-msys_help() {
-  PKGHANDLER_COMMAND=""
-}
-
 apt_help() {
   case $1 in
     reduced)
@@ -101,6 +97,8 @@ apt_help() {
       PKGHANDLER_COMMAND="sudo apt-get install libfontconfig1-dev" ;;
     freetype)
       PKGHANDLER_COMMAND="sudo apt-get install libfreetype6-dev" ;;
+    harfbuzz)
+      PKGHANDLER_COMMAND="sudo apt-get install libharfbuzz-dev" ;;
     ffi)
       PKGHANDLER_COMMAND="sudo apt-get install libffi-dev" ;;
     x11)
@@ -124,6 +122,8 @@ zypper_help() {
       PKGHANDLER_COMMAND="sudo zypper install fontconfig-devel" ;;
     freetype)
       PKGHANDLER_COMMAND="sudo zypper install freetype-devel" ;;
+    harfbuzz)
+      PKGHANDLER_COMMAND="sudo zypper install harfbuzz-devel" ;;
     x11)
       PKGHANDLER_COMMAND="sudo zypper install libX11-devel libXext-devel libXrender-devel libXrandr-devel libXtst-devel libXt-devel libXi-devel" ;;
     ccache)
@@ -143,6 +143,8 @@ yum_help() {
       PKGHANDLER_COMMAND="sudo yum install fontconfig-devel" ;;
     freetype)
       PKGHANDLER_COMMAND="sudo yum install freetype-devel" ;;
+    harfbuzz)
+      PKGHANDLER_COMMAND="sudo yum install harfbuzz-devel" ;;
     x11)
       PKGHANDLER_COMMAND="sudo yum install libXtst-devel libXt-devel libXrender-devel libXrandr-devel libXi-devel" ;;
     ccache)
@@ -159,6 +161,17 @@ brew_help() {
   esac
 }
 
+pacman_help() {
+  case $1 in
+    unzip)
+      PKGHANDLER_COMMAND="sudo pacman -S unzip" ;;
+    zip)
+      PKGHANDLER_COMMAND="sudo pacman -S zip" ;;
+    make)
+      PKGHANDLER_COMMAND="sudo pacman -S make" ;;
+  esac
+}
+
 port_help() {
   PKGHANDLER_COMMAND=""
 }
@@ -232,6 +245,7 @@ AC_DEFUN_ONCE([HELP_PRINT_SUMMARY_AND_WARNINGS],
 
   printf "\n"
   printf "Configuration summary:\n"
+  printf "* Name:           $CONF_NAME\n"
   printf "* Debug level:    $DEBUG_LEVEL\n"
   printf "* HS debug level: $HOTSPOT_DEBUG_LEVEL\n"
   printf "* JVM variants:   $JVM_VARIANTS\n"
@@ -250,16 +264,13 @@ AC_DEFUN_ONCE([HELP_PRINT_SUMMARY_AND_WARNINGS],
   printf "\n"
   printf "Tools summary:\n"
   if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
-    printf "* Environment:    $WINDOWS_ENV_VENDOR version $WINDOWS_ENV_VERSION. Windows version $WINDOWS_VERSION"
-    if test "x$WINDOWS_ENV_ROOT_PATH" != "x"; then
-      printf ". Root at $WINDOWS_ENV_ROOT_PATH"
-    fi
-    printf "\n"
+    printf "* Environment:    %s version %s; windows version %s; prefix \"%s\"; root \"%s\"\n" \
+        "$WINENV_VENDOR" "$WINENV_VERSION" "$WINDOWS_VERSION" "$WINENV_PREFIX" "$WINENV_ROOT"
   fi
   printf "* Boot JDK:       $BOOT_JDK_VERSION (at $BOOT_JDK)\n"
   printf "* Toolchain:      $TOOLCHAIN_TYPE ($TOOLCHAIN_DESCRIPTION)\n"
-  printf "* C Compiler:     Version $CC_VERSION_NUMBER (at $CC)\n"
-  printf "* C++ Compiler:   Version $CXX_VERSION_NUMBER (at $CXX)\n"
+  printf "* C Compiler:     Version $CC_VERSION_NUMBER (at ${CC#"$FIXPATH "})\n"
+  printf "* C++ Compiler:   Version $CXX_VERSION_NUMBER (at ${CXX#"$FIXPATH "})\n"
 
   printf "\n"
   printf "Build performance summary:\n"

make/autoconf/jdk-options.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -228,23 +228,6 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_OPTIONS],
 ])
 
 ###############################################################################
-#
-# Enable or disable the elliptic curve crypto implementation
-#
-AC_DEFUN_ONCE([JDKOPT_DETECT_INTREE_EC],
-[
-  AC_MSG_CHECKING([if elliptic curve crypto implementation is present])
-
-  if test -d "${TOPDIR}/src/jdk.crypto.ec/share/native/libsunec/impl"; then
-    ENABLE_INTREE_EC=true
-    AC_MSG_RESULT([yes])
-  else
-    ENABLE_INTREE_EC=false
-    AC_MSG_RESULT([no])
-  fi
-
-  AC_SUBST(ENABLE_INTREE_EC)
-])
 
 AC_DEFUN_ONCE([JDKOPT_SETUP_DEBUG_SYMBOLS],
 [
@@ -257,11 +240,7 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_DEBUG_SYMBOLS],
       [AS_HELP_STRING([--with-native-debug-symbols],
       [set the native debug symbol configuration (none, internal, external, zipped) @<:@varying@:>@])],
       [
-        if test "x$OPENJDK_TARGET_OS" = xaix; then
-          if test "x$withval" = xexternal || test "x$withval" = xzipped; then
-            AC_MSG_ERROR([AIX only supports the parameters 'none' and 'internal' for --with-native-debug-symbols])
-          fi
-        elif test "x$OPENJDK_TARGET_OS" = xwindows; then
+        if test "x$OPENJDK_TARGET_OS" = xwindows; then
           if test "x$withval" = xinternal; then
             AC_MSG_ERROR([Windows does not support the parameter 'internal' for --with-native-debug-symbols])
           fi
@@ -271,12 +250,7 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_DEBUG_SYMBOLS],
         if test "x$STATIC_BUILD" = xtrue; then
           with_native_debug_symbols="none"
         else
-          if test "x$OPENJDK_TARGET_OS" = xaix; then
-            # AIX doesn't support 'external' so use 'internal' as default
-            with_native_debug_symbols="internal"
-          else
-            with_native_debug_symbols="external"
-          fi
+          with_native_debug_symbols="external"
         fi
       ])
   AC_MSG_RESULT([$with_native_debug_symbols])
@@ -405,9 +379,9 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_CODE_COVERAGE],
     UTIL_FIXUP_PATH(JCOV_HOME)
     if test "x$with_jcov_input_jdk" != "x" ; then
       JCOV_INPUT_JDK="$with_jcov_input_jdk"
-      if test ! -f "$JCOV_INPUT_JDK/bin/java$EXE_SUFFIX"; then
+      if test ! -f "$JCOV_INPUT_JDK/bin/java" && test ! -f "$JCOV_INPUT_JDK/bin/java.exe"; then
         AC_MSG_RESULT([fail])
-        AC_MSG_ERROR([Invalid JDK bundle: "$JCOV_INPUT_JDK/bin/java$EXE_SUFFIX" does not exist])
+        AC_MSG_ERROR([Invalid JDK bundle: "$JCOV_INPUT_JDK/bin/java" does not exist])
       fi
       UTIL_FIXUP_PATH(JCOV_INPUT_JDK)
     fi
@@ -440,7 +414,10 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_ADDRESS_SANITIZER],
         fi
       ],
       IF_ENABLED: [
-        ASAN_CFLAGS="-fsanitize=address -fno-omit-frame-pointer"
+        # ASan is simply incompatible with gcc -Wstringop-truncation. See
+        # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85650
+        # It's harmless to be suppressed in clang as well.
+        ASAN_CFLAGS="-fsanitize=address -Wno-stringop-truncation -fno-omit-frame-pointer"
         ASAN_LDFLAGS="-fsanitize=address"
         JVM_CFLAGS="$JVM_CFLAGS $ASAN_CFLAGS"
         JVM_LDFLAGS="$JVM_LDFLAGS $ASAN_LDFLAGS"
@@ -599,6 +576,30 @@ AC_DEFUN([JDKOPT_ENABLE_DISABLE_CDS_ARCHIVE],
   AC_SUBST(BUILD_CDS_ARCHIVE)
 ])
 
+################################################################################
+#
+# Enable the alternative CDS core region alignment
+#
+AC_DEFUN([JDKOPT_ENABLE_DISABLE_COMPATIBLE_CDS_ALIGNMENT],
+[
+  UTIL_ARG_ENABLE(NAME: compatible-cds-alignment, DEFAULT: false,
+      RESULT: ENABLE_COMPATIBLE_CDS_ALIGNMENT,
+      DESC: [enable use alternative compatible cds core region alignment],
+      DEFAULT_DESC: [disabled],
+      CHECKING_MSG: [if compatible cds region alignment enabled],
+      CHECK_AVAILABLE: [
+        AC_MSG_CHECKING([if CDS archive is available])
+        if test "x$ENABLE_CDS" = "xfalse"; then
+          AVAILABLE=false
+          AC_MSG_RESULT([no (CDS is disabled)])
+        else
+          AVAILABLE=true
+          AC_MSG_RESULT([yes])
+        fi
+      ])
+  AC_SUBST(ENABLE_COMPATIBLE_CDS_ALIGNMENT)
+])
+
 ################################################################################
 #
 # Disallow any output from containing absolute paths from the build system.
@@ -654,7 +655,7 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_REPRODUCIBLE_BUILD],
     SOURCE_DATE=$($DATE +"%s")
     AC_MSG_RESULT([$SOURCE_DATE, from 'current'])
   elif test "x$with_source_date" = xversion; then
-    # Use the date from version-numbers
+    # Use the date from version-numbers.conf
     UTIL_GET_EPOCH_TIMESTAMP(SOURCE_DATE, $DEFAULT_VERSION_DATE)
     if test "x$SOURCE_DATE" = x; then
       AC_MSG_RESULT([unavailable])
@@ -678,10 +679,27 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_REPRODUCIBLE_BUILD],
     fi
   fi
 
-  UTIL_ARG_ENABLE(NAME: reproducible-build, DEFAULT: $with_source_date_present,
+  REPRODUCIBLE_BUILD_DEFAULT=$with_source_date_present
+
+  if test "x$OPENJDK_BUILD_OS" = xwindows && \
+      test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = xfalse; then
+    # To support banning absolute paths on Windows, we must use the -pathmap
+    # method, which requires reproducible builds.
+    REPRODUCIBLE_BUILD_DEFAULT=true
+  fi
+
+  UTIL_ARG_ENABLE(NAME: reproducible-build, DEFAULT: $REPRODUCIBLE_BUILD_DEFAULT,
       RESULT: ENABLE_REPRODUCIBLE_BUILD,
       DESC: [enable reproducible builds (not yet fully functional)],
-      DEFAULT_DESC: [enabled if --with-source-date is given])
+      DEFAULT_DESC: [enabled if --with-source-date is given or on Windows without absolute paths])
+
+  if test "x$OPENJDK_BUILD_OS" = xwindows && \
+      test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = xfalse && \
+      test "x$ENABLE_REPRODUCIBLE_BUILD" = xfalse; then
+    AC_MSG_NOTICE([On Windows it is not possible to combine  --disable-reproducible-builds])
+    AC_MSG_NOTICE([with --disable-absolute-paths-in-output.])
+    AC_MSG_ERROR([Cannot continue])
+  fi
 
   AC_SUBST(SOURCE_DATE)
   AC_SUBST(ENABLE_REPRODUCIBLE_BUILD)

make/autoconf/jdk-version.m4

@@ -58,7 +58,9 @@ AC_DEFUN([JDKVER_CHECK_AND_SET_NUMBER],
 AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
 [
   # Source the version numbers file
-  . $AUTOCONF_DIR/version-numbers
+  . $TOPDIR/make/conf/version-numbers.conf
+  # Source the branding file
+  . $TOPDIR/make/conf/branding.conf
 
   # Some non-version number information is set in that file
   AC_SUBST(LAUNCHER_NAME)
@@ -67,34 +69,6 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
   AC_SUBST(JDK_RC_PLATFORM_NAME)
   AC_SUBST(HOTSPOT_VM_DISTRO)
 
-  # Set the MACOSX Bundle Name base
-  AC_ARG_WITH(macosx-bundle-name-base, [AS_HELP_STRING([--with-macosx-bundle-name-base],
-      [Set the MacOSX Bundle Name base. This is the base name for calculating MacOSX Bundle Names.
-      @<:@not specified@:>@])])
-  if test "x$with_macosx_bundle_name_base" = xyes; then
-    AC_MSG_ERROR([--with-macosx-bundle-name-base must have a value])
-  elif [ ! [[ $with_macosx_bundle_name_base =~ ^[[:print:]]*$ ]] ]; then
-    AC_MSG_ERROR([--with-macosx-bundle-name-base contains non-printing characters: $with_macosx_bundle_name_base])
-  elif test "x$with_macosx_bundle_name_base" != x; then
-    # Set MACOSX_BUNDLE_NAME_BASE to the configured value.
-    MACOSX_BUNDLE_NAME_BASE="$with_macosx_bundle_name_base"
-  fi
-  AC_SUBST(MACOSX_BUNDLE_NAME_BASE)
-
-  # Set the MACOSX Bundle ID base
-  AC_ARG_WITH(macosx-bundle-id-base, [AS_HELP_STRING([--with-macosx-bundle-id-base],
-      [Set the MacOSX Bundle ID base. This is the base ID for calculating MacOSX Bundle IDs.
-      @<:@not specified@:>@])])
-  if test "x$with_macosx_bundle_id_base" = xyes; then
-    AC_MSG_ERROR([--with-macosx-bundle-id-base must have a value])
-  elif [ ! [[ $with_macosx_bundle_id_base =~ ^[[:print:]]*$ ]] ]; then
-    AC_MSG_ERROR([--with-macosx-bundle-id-base contains non-printing characters: $with_macosx_bundle_id_base])
-  elif test "x$with_macosx_bundle_id_base" != x; then
-    # Set MACOSX_BUNDLE_ID_BASE to the configured value.
-    MACOSX_BUNDLE_ID_BASE="$with_macosx_bundle_id_base"
-  fi
-  AC_SUBST(MACOSX_BUNDLE_ID_BASE)
-
   # Set the JDK RC name
   AC_ARG_WITH(jdk-rc-name, [AS_HELP_STRING([--with-jdk-rc-name],
       [Set JDK RC name. This is used for FileDescription and ProductName properties
@@ -107,7 +81,7 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
     # Set JDK_RC_NAME to a custom value if '--with-jdk-rc-name' was used and is not empty.
     JDK_RC_NAME="$with_jdk_rc_name"
   else
-    # Otherwise calculate from "version-numbers" included above.
+    # Otherwise calculate from "branding.conf" included above.
     JDK_RC_NAME="$PRODUCT_NAME $JDK_RC_PLATFORM_NAME"
   fi
   AC_SUBST(JDK_RC_NAME)
@@ -122,7 +96,7 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
     AC_MSG_ERROR([--with-vendor-name contains non-printing characters: $with_vendor_name])
   elif test "x$with_vendor_name" != x; then
     # Only set COMPANY_NAME if '--with-vendor-name' was used and is not empty.
-    # Otherwise we will use the value from "version-numbers" included above.
+    # Otherwise we will use the value from "branding.conf" included above.
     COMPANY_NAME="$with_vendor_name"
   fi
   AC_SUBST(COMPANY_NAME)
@@ -136,7 +110,7 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
     AC_MSG_ERROR([--with-vendor-url contains non-printing characters: $with_vendor_url])
   elif test "x$with_vendor_url" != x; then
     # Only set VENDOR_URL if '--with-vendor-url' was used and is not empty.
-    # Otherwise we will use the value from "version-numbers" included above.
+    # Otherwise we will use the value from "branding.conf" included above.
     VENDOR_URL="$with_vendor_url"
   fi
   AC_SUBST(VENDOR_URL)
@@ -150,7 +124,7 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
     AC_MSG_ERROR([--with-vendor-bug-url contains non-printing characters: $with_vendor_bug_url])
   elif test "x$with_vendor_bug_url" != x; then
     # Only set VENDOR_URL_BUG if '--with-vendor-bug-url' was used and is not empty.
-    # Otherwise we will use the value from "version-numbers" included above.
+    # Otherwise we will use the value from "branding.conf" included above.
     VENDOR_URL_BUG="$with_vendor_bug_url"
   fi
   AC_SUBST(VENDOR_URL_BUG)
@@ -164,7 +138,7 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
     AC_MSG_ERROR([--with-vendor-vm-bug-url contains non-printing characters: $with_vendor_vm_bug_url])
   elif test "x$with_vendor_vm_bug_url" != x; then
     # Only set VENDOR_URL_VM_BUG if '--with-vendor-vm-bug-url' was used and is not empty.
-    # Otherwise we will use the value from "version-numbers" included above.
+    # Otherwise we will use the value from "branding.conf" included above.
     VENDOR_URL_VM_BUG="$with_vendor_vm_bug_url"
   fi
   AC_SUBST(VENDOR_URL_VM_BUG)
@@ -308,7 +282,7 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
     fi
   else
     if test "x$NO_DEFAULT_VERSION_PARTS" != xtrue; then
-      # Default is to get value from version-numbers
+      # Default is to get value from version-numbers.conf
       VERSION_FEATURE="$DEFAULT_VERSION_FEATURE"
     fi
   fi
@@ -502,6 +476,60 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
     VENDOR_VERSION_STRING="$with_vendor_version_string"
   fi
 
+  # Set the MACOSX Bundle Name base
+  AC_ARG_WITH(macosx-bundle-name-base, [AS_HELP_STRING([--with-macosx-bundle-name-base],
+      [Set the MacOSX Bundle Name base. This is the base name for calculating MacOSX Bundle Names.
+      @<:@not specified@:>@])])
+  if test "x$with_macosx_bundle_name_base" = xyes; then
+    AC_MSG_ERROR([--with-macosx-bundle-name-base must have a value])
+  elif [ ! [[ $with_macosx_bundle_name_base =~ ^[[:print:]]*$ ]] ]; then
+    AC_MSG_ERROR([--with-macosx-bundle-name-base contains non-printing characters: $with_macosx_bundle_name_base])
+  elif test "x$with_macosx_bundle_name_base" != x; then
+    # Set MACOSX_BUNDLE_NAME_BASE to the configured value.
+    MACOSX_BUNDLE_NAME_BASE="$with_macosx_bundle_name_base"
+  fi
+  AC_SUBST(MACOSX_BUNDLE_NAME_BASE)
+
+  # Set the MACOSX Bundle ID base
+  AC_ARG_WITH(macosx-bundle-id-base, [AS_HELP_STRING([--with-macosx-bundle-id-base],
+      [Set the MacOSX Bundle ID base. This is the base ID for calculating MacOSX Bundle IDs.
+      @<:@not specified@:>@])])
+  if test "x$with_macosx_bundle_id_base" = xyes; then
+    AC_MSG_ERROR([--with-macosx-bundle-id-base must have a value])
+  elif [ ! [[ $with_macosx_bundle_id_base =~ ^[[:print:]]*$ ]] ]; then
+    AC_MSG_ERROR([--with-macosx-bundle-id-base contains non-printing characters: $with_macosx_bundle_id_base])
+  elif test "x$with_macosx_bundle_id_base" != x; then
+    # Set MACOSX_BUNDLE_ID_BASE to the configured value.
+    MACOSX_BUNDLE_ID_BASE="$with_macosx_bundle_id_base"
+  else
+    # If using the default value, append the VERSION_PRE if there is one
+    # to make it possible to tell official builds apart from developer builds
+    if test "x$VERSION_PRE" != x; then
+      MACOSX_BUNDLE_ID_BASE="$MACOSX_BUNDLE_ID_BASE-$VERSION_PRE"
+    fi
+  fi
+  AC_SUBST(MACOSX_BUNDLE_ID_BASE)
+
+  # Set the MACOSX CFBundleVersion field
+  AC_ARG_WITH(macosx-bundle-build-version, [AS_HELP_STRING([--with-macosx-bundle-build-version],
+      [Set the MacOSX Bundle CFBundleVersion field. This key is a machine-readable
+      string composed of one to three period-separated integers and should represent the
+      build version. Defaults to the build number.])])
+  if test "x$with_macosx_bundle_build_version" = xyes; then
+    AC_MSG_ERROR([--with-macosx-bundle-build-version must have a value])
+  elif [ ! [[ $with_macosx_bundle_build_version =~ ^[0-9\.]*$ ]] ]; then
+    AC_MSG_ERROR([--with-macosx-bundle-build-version contains non numbers and periods: $with_macosx_bundle_build_version])
+  elif test "x$with_macosx_bundle_build_version" != x; then
+    MACOSX_BUNDLE_BUILD_VERSION="$with_macosx_bundle_build_version"
+  else
+    MACOSX_BUNDLE_BUILD_VERSION="$VERSION_BUILD"
+    # If VERSION_OPT consists of only numbers and periods, add it.
+    if [ [[ $VERSION_OPT =~ ^[0-9\.]+$ ]] ]; then
+      MACOSX_BUNDLE_BUILD_VERSION+=".$VERSION_OPT"
+    fi
+  fi
+  AC_SUBST(MACOSX_BUNDLE_BUILD_VERSION)
+
   # We could define --with flags for these, if really needed
   VERSION_CLASSFILE_MAJOR="$DEFAULT_VERSION_CLASSFILE_MAJOR"
   VERSION_CLASSFILE_MINOR="$DEFAULT_VERSION_CLASSFILE_MINOR"

make/autoconf/jvm-features.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -44,7 +44,7 @@
 m4_define(jvm_features_valid, m4_normalize( \
     ifdef([custom_jvm_features_valid], custom_jvm_features_valid) \
     \
-    aot cds compiler1 compiler2 dtrace epsilongc g1gc graal jfr jni-check \
+    cds compiler1 compiler2 dtrace epsilongc g1gc jfr jni-check \
     jvmci jvmti link-time-opt management minimal nmt opt-size parallelgc \
     serialgc services shenandoahgc static-build vm-structs zero zgc \
 ))
@@ -55,14 +55,12 @@ m4_define(jvm_features_deprecated, m4_normalize(
 ))
 
 # Feature descriptions
-m4_define(jvm_feature_desc_aot, [enable ahead of time compilation (AOT)])
 m4_define(jvm_feature_desc_cds, [enable class data sharing (CDS)])
 m4_define(jvm_feature_desc_compiler1, [enable hotspot compiler C1])
 m4_define(jvm_feature_desc_compiler2, [enable hotspot compiler C2])
 m4_define(jvm_feature_desc_dtrace, [enable dtrace support])
 m4_define(jvm_feature_desc_epsilongc, [include the epsilon (no-op) garbage collector])
 m4_define(jvm_feature_desc_g1gc, [include the G1 garbage collector])
-m4_define(jvm_feature_desc_graal, [enable Graal (jdk.internal.vm.compiler)])
 m4_define(jvm_feature_desc_jfr, [enable JDK Flight Recorder (JFR)])
 m4_define(jvm_feature_desc_jni_check, [enable -Xcheck:jni support])
 m4_define(jvm_feature_desc_jvmci, [enable JVM Compiler Interface (JVMCI)])
@@ -94,7 +92,6 @@ AC_DEFUN_ONCE([JVM_FEATURES_PARSE_OPTIONS],
 
   # For historical reasons, some jvm features have their own, shorter names.
   # Keep those as aliases for the --enable-jvm-feature-* style arguments.
-  UTIL_ALIASED_ARG_ENABLE(aot, --enable-jvm-feature-aot)
   UTIL_ALIASED_ARG_ENABLE(cds, --enable-jvm-feature-cds)
   UTIL_ALIASED_ARG_ENABLE(dtrace, --enable-jvm-feature-dtrace)
 
@@ -159,7 +156,7 @@ AC_DEFUN_ONCE([JVM_FEATURES_PARSE_OPTIONS],
   # Likewise, check for deprecated arguments.
   m4_foreach(FEATURE, m4_split(jvm_features_deprecated), [
     AC_ARG_ENABLE(jvm-feature-FEATURE, AS_HELP_STRING(
-        [--enable-jvm-feature-FEATURE], 
+        [--enable-jvm-feature-FEATURE],
         [Deprecated. Option is kept for backwards compatibility and is ignored]))
 
     m4_define(FEATURE_SHELL, [enable_jvm_feature_]m4_translit(FEATURE, -, _))
@@ -229,33 +226,6 @@ AC_DEFUN([JVM_FEATURES_CHECK_AVAILABILITY],
   fi
 ])
 
-###############################################################################
-# Check if the feature 'aot' is available on this platform.
-#
-AC_DEFUN_ONCE([JVM_FEATURES_CHECK_AOT],
-[
-  JVM_FEATURES_CHECK_AVAILABILITY(aot, [
-    AC_MSG_CHECKING([if platform is supported by AOT])
-    # AOT is only available where JVMCI is available since it requires JVMCI.
-    if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || \
-        test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
-      AC_MSG_RESULT([yes])
-    else
-      AC_MSG_RESULT([no, $OPENJDK_TARGET_CPU])
-      AVAILABLE=false
-    fi
-
-    AC_MSG_CHECKING([if AOT source code is present])
-    if test -e "${TOPDIR}/src/jdk.internal.vm.compiler" && \
-        test -e "${TOPDIR}/src/jdk.aot"; then
-      AC_MSG_RESULT([yes])
-    else
-      AC_MSG_RESULT([no, missing src/jdk.internal.vm.compiler or src/jdk.aot])
-      AVAILABLE=false
-    fi
-  ])
-])
-
 ###############################################################################
 # Check if the feature 'cds' is available on this platform.
 #
@@ -263,11 +233,11 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_CDS],
 [
   JVM_FEATURES_CHECK_AVAILABILITY(cds, [
     AC_MSG_CHECKING([if platform is supported by CDS])
-    if test "x$OPENJDK_TARGET_OS" != xaix; then
-      AC_MSG_RESULT([yes])
-    else
-      AC_MSG_RESULT([no, $OPENJDK_TARGET_OS])
+    if test "x$OPENJDK_TARGET_OS" = xaix; then
+      AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
       AVAILABLE=false
+    else
+      AC_MSG_RESULT([yes])
     fi
   ])
 ])
@@ -295,24 +265,6 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_DTRACE],
   ])
 ])
 
-###############################################################################
-# Check if the feature 'graal' is available on this platform.
-#
-AC_DEFUN_ONCE([JVM_FEATURES_CHECK_GRAAL],
-[
-  JVM_FEATURES_CHECK_AVAILABILITY(graal, [
-    AC_MSG_CHECKING([if platform is supported by Graal])
-    # Graal is only available where JVMCI is available since it requires JVMCI.
-    if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || \
-        test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
-      AC_MSG_RESULT([yes])
-    else
-      AC_MSG_RESULT([no, $OPENJDK_TARGET_CPU])
-      AVAILABLE=false
-    fi
-  ])
-])
-
 ###############################################################################
 # Check if the feature 'jfr' is available on this platform.
 #
@@ -336,8 +288,9 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_JVMCI],
 [
   JVM_FEATURES_CHECK_AVAILABILITY(jvmci, [
     AC_MSG_CHECKING([if platform is supported by JVMCI])
-    if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || \
-        test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
+    if test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
+      AC_MSG_RESULT([yes])
+    elif test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
       AC_MSG_RESULT([yes])
     else
       AC_MSG_RESULT([no, $OPENJDK_TARGET_CPU])
@@ -395,8 +348,15 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_ZGC],
         AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
         AVAILABLE=false
       fi
-    elif test "x$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU" = "xlinux-aarch64"; then
-      AC_MSG_RESULT([yes])
+    elif test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
+      if test "x$OPENJDK_TARGET_OS" = "xlinux" || \
+          test "x$OPENJDK_TARGET_OS" = "xwindows" || \
+          test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
+        AC_MSG_RESULT([yes])
+      else
+        AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
+        AVAILABLE=false
+      fi
     else
       AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
       AVAILABLE=false
@@ -430,10 +390,8 @@ AC_DEFUN_ONCE([JVM_FEATURES_PREPARE_PLATFORM],
   # The checks below should add unavailable features to
   # JVM_FEATURES_PLATFORM_UNAVAILABLE.
 
-  JVM_FEATURES_CHECK_AOT
   JVM_FEATURES_CHECK_CDS
   JVM_FEATURES_CHECK_DTRACE
-  JVM_FEATURES_CHECK_GRAAL
   JVM_FEATURES_CHECK_JFR
   JVM_FEATURES_CHECK_JVMCI
   JVM_FEATURES_CHECK_SHENANDOAHGC
@@ -466,18 +424,18 @@ AC_DEFUN([JVM_FEATURES_PREPARE_VARIANT],
   elif test "x$variant" = "xcore"; then
     JVM_FEATURES_VARIANT_UNAVAILABLE="cds minimal zero"
   elif test "x$variant" = "xzero"; then
-    JVM_FEATURES_VARIANT_UNAVAILABLE="aot cds compiler1 compiler2 \
-        epsilongc g1gc graal jvmci minimal shenandoahgc zgc"
+    JVM_FEATURES_VARIANT_UNAVAILABLE="cds compiler1 compiler2 \
+        jvmci minimal zgc"
   else
     JVM_FEATURES_VARIANT_UNAVAILABLE="minimal zero"
   fi
 
   # Check which features should be off by default for this JVM variant.
   if test "x$variant" = "xclient"; then
-    JVM_FEATURES_VARIANT_FILTER="aot compiler2 graal jvmci link-time-opt opt-size"
+    JVM_FEATURES_VARIANT_FILTER="compiler2 jvmci link-time-opt opt-size"
   elif test "x$variant" = "xminimal"; then
-    JVM_FEATURES_VARIANT_FILTER="aot cds compiler2 dtrace epsilongc g1gc \
-        graal jfr jni-check jvmci jvmti management nmt parallelgc services \
+    JVM_FEATURES_VARIANT_FILTER="cds compiler2 dtrace epsilongc g1gc \
+        jfr jni-check jvmci jvmti management nmt parallelgc services \
         shenandoahgc vm-structs zgc"
     if test "x$OPENJDK_TARGET_CPU" = xarm ; then
       JVM_FEATURES_VARIANT_FILTER="$JVM_FEATURES_VARIANT_FILTER opt-size"
@@ -487,7 +445,7 @@ AC_DEFUN([JVM_FEATURES_PREPARE_VARIANT],
           link-time-opt"
     fi
   elif test "x$variant" = "xcore"; then
-    JVM_FEATURES_VARIANT_FILTER="aot compiler1 compiler2 graal jvmci \
+    JVM_FEATURES_VARIANT_FILTER="compiler1 compiler2 jvmci \
         link-time-opt opt-size"
   elif test "x$variant" = "xzero"; then
     JVM_FEATURES_VARIANT_FILTER="jfr link-time-opt opt-size"
@@ -563,15 +521,6 @@ AC_DEFUN([JVM_FEATURES_VERIFY],
 [
   variant=$1
 
-  # Verify that dependencies are met for inter-feature relations.
-  if JVM_FEATURES_IS_ACTIVE(aot) && ! JVM_FEATURES_IS_ACTIVE(graal); then
-    AC_MSG_ERROR([Specified JVM feature 'aot' requires feature 'graal' for variant '$variant'])
-  fi
-
-  if JVM_FEATURES_IS_ACTIVE(graal) && ! JVM_FEATURES_IS_ACTIVE(jvmci); then
-    AC_MSG_ERROR([Specified JVM feature 'graal' requires feature 'jvmci' for variant '$variant'])
-  fi
-
   if JVM_FEATURES_IS_ACTIVE(jvmci) && ! (JVM_FEATURES_IS_ACTIVE(compiler1) || \
       JVM_FEATURES_IS_ACTIVE(compiler2)); then
     AC_MSG_ERROR([Specified JVM feature 'jvmci' requires feature 'compiler2' or 'compiler1' for variant '$variant'])
@@ -587,15 +536,9 @@ AC_DEFUN([JVM_FEATURES_VERIFY],
 
   # For backwards compatibility, disable a feature "globally" if one variant
   # is missing the feature.
-  if ! JVM_FEATURES_IS_ACTIVE(aot); then
-    ENABLE_AOT="false"
-  fi
   if ! JVM_FEATURES_IS_ACTIVE(cds); then
     ENABLE_CDS="false"
   fi
-  if ! JVM_FEATURES_IS_ACTIVE(graal); then
-    INCLUDE_GRAAL="false"
-  fi
   if ! JVM_FEATURES_IS_ACTIVE(jvmci); then
     INCLUDE_JVMCI="false"
   fi
@@ -620,9 +563,7 @@ AC_DEFUN_ONCE([JVM_FEATURES_SETUP],
   # For backwards compatibility, tentatively enable these features "globally",
   # and disable them in JVM_FEATURES_VERIFY if a variant is found that are
   # missing any of them.
-  ENABLE_AOT="true"
   ENABLE_CDS="true"
-  INCLUDE_GRAAL="true"
   INCLUDE_JVMCI="true"
 
   for variant in $JVM_VARIANTS; do
@@ -659,8 +600,6 @@ AC_DEFUN_ONCE([JVM_FEATURES_SETUP],
   AC_SUBST(JVM_FEATURES_zero)
   AC_SUBST(JVM_FEATURES_custom)
 
-  AC_SUBST(ENABLE_AOT)
-  AC_SUBST(INCLUDE_GRAAL)
   AC_SUBST(INCLUDE_JVMCI)
 
 ])

make/autoconf/lib-bundled.m4

@@ -40,6 +40,7 @@ AC_DEFUN_ONCE([LIB_SETUP_BUNDLED_LIBS],
   LIB_SETUP_LIBPNG
   LIB_SETUP_ZLIB
   LIB_SETUP_LCMS
+  LIB_SETUP_HARFBUZZ
 ])
 
 ################################################################################
@@ -263,3 +264,43 @@ AC_DEFUN_ONCE([LIB_SETUP_LCMS],
   AC_SUBST(LCMS_CFLAGS)
   AC_SUBST(LCMS_LIBS)
 ])
+
+################################################################################
+# Setup harfbuzz
+################################################################################
+AC_DEFUN_ONCE([LIB_SETUP_HARFBUZZ],
+[
+  AC_ARG_WITH(harfbuzz, [AS_HELP_STRING([--with-harfbuzz],
+      [use harfbuzz from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])])
+
+  AC_MSG_CHECKING([for which harfbuzz to use])
+
+  DEFAULT_HARFBUZZ=bundled
+  # If user didn't specify, use DEFAULT_HARFBUZZ
+  if test "x${with_harfbuzz}" = "x"; then
+    with_harfbuzz=${DEFAULT_HARFBUZZ}
+  fi
+
+  if test "x${with_harfbuzz}" = "xbundled"; then
+    USE_EXTERNAL_HARFBUZZ=false
+    HARFBUZZ_CFLAGS=""
+    HARFBUZZ_LIBS=""
+    AC_MSG_RESULT([bundled])
+  elif test "x${with_harfbuzz}" = "xsystem"; then
+    AC_MSG_RESULT([system])
+    PKG_CHECK_MODULES([HARFBUZZ], [harfbuzz], [HARFBUZZ_FOUND=yes], [HARFBUZZ_FOUND=no])
+    if test "x${HARFBUZZ_FOUND}" = "xyes"; then
+      # PKG_CHECK_MODULES will set HARFBUZZ_CFLAGS and HARFBUZZ_LIBS
+      USE_EXTERNAL_HARFBUZZ=true
+    else
+      HELP_MSG_MISSING_DEPENDENCY([harfbuzz])
+      AC_MSG_ERROR([--with-harfbuzz=system specified, but no harfbuzz found! $HELP_MSG])
+    fi
+  else
+    AC_MSG_ERROR([Invalid value for --with-harfbuzz: ${with_harfbuzz}, use 'system' or 'bundled'])
+  fi
+
+  AC_SUBST(USE_EXTERNAL_HARFBUZZ)
+  AC_SUBST(HARFBUZZ_CFLAGS)
+  AC_SUBST(HARFBUZZ_LIBS)
+])

make/autoconf/lib-ffi.m4

@@ -87,6 +87,20 @@ AC_DEFUN_ONCE([LIB_SETUP_LIBFFI],
           [LIBFFI_FOUND=no]
       )
     fi
+    # on macos we need a special case for system's libffi as
+    # headers are located only in sdk in $SYSROOT and in ffi subfolder
+    if test "x$LIBFFI_FOUND" = xno; then
+      if test "x$SYSROOT" != "x"; then
+        AC_CHECK_HEADER([$SYSROOT/usr/include/ffi/ffi.h],
+            [
+              LIBFFI_FOUND=yes
+              LIBFFI_CFLAGS="-I${SYSROOT}/usr/include/ffi"
+              LIBFFI_LIBS=-lffi
+            ],
+            [LIBFFI_FOUND=no]
+        )
+      fi
+    fi
     if test "x$LIBFFI_FOUND" = xno; then
       HELP_MSG_MISSING_DEPENDENCY([ffi])
       AC_MSG_ERROR([Could not find libffi! $HELP_MSG])

make/autoconf/lib-freetype.m4

@@ -192,6 +192,16 @@ AC_DEFUN_ONCE([LIB_SETUP_FREETYPE],
               [$FREETYPE_BASE_DIR/lib], [well-known location])
         fi
 
+        if test "x$FOUND_FREETYPE" != "xyes" ; then
+          LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include],
+              [$FREETYPE_BASE_DIR/lib/$OPENJDK_TARGET_CPU-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI], [well-known location])
+        fi
+
+        if test "x$FOUND_FREETYPE" != "xyes" ; then
+          LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include],
+              [$FREETYPE_BASE_DIR/lib/$OPENJDK_TARGET_CPU_AUTOCONF-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI], [well-known location])
+        fi
+
         if test "x$FOUND_FREETYPE" != "xyes" ; then
           FREETYPE_BASE_DIR="$SYSROOT/usr/X11"
           LIB_CHECK_POTENTIAL_FREETYPE([$FREETYPE_BASE_DIR/include],

make/autoconf/lib-std.m4

@@ -70,6 +70,7 @@ AC_DEFUN_ONCE([LIB_SETUP_STD_LIBS],
     else
       LIBCXX="$LIBCXX $STATIC_STDCXX_FLAGS"
       JVM_LDFLAGS="$JVM_LDFLAGS $STATIC_STDCXX_FLAGS"
+      ADLC_LDFLAGS="$ADLC_LDFLAGS $STATIC_STDCXX_FLAGS"
       # Ideally, we should test stdc++ for the BUILD toolchain separately. For now
       # just use the same setting as for the TARGET toolchain.
       OPENJDK_BUILD_JVM_LDFLAGS="$OPENJDK_BUILD_JVM_LDFLAGS $STATIC_STDCXX_FLAGS"

make/autoconf/lib-tests.m4

@@ -23,38 +23,6 @@
 # questions.
 #
 
-###############################################################################
-#
-# Check for graalunit libs, needed for running graalunit tests.
-#
-AC_DEFUN_ONCE([LIB_TESTS_SETUP_GRAALUNIT],
-[
-  AC_ARG_WITH(graalunit-lib, [AS_HELP_STRING([--with-graalunit-lib],
-      [specify location of 3rd party libraries used by Graal unit tests])])
-
-  GRAALUNIT_LIB=
-  if test "x${with_graalunit_lib}" != x; then
-    AC_MSG_CHECKING([for graalunit libs])
-    if test "x${with_graalunit_lib}" = xno; then
-      AC_MSG_RESULT([disabled, graalunit tests can not be run])
-    elif test "x${with_graalunit_lib}" = xyes; then
-      AC_MSG_RESULT([not specified])
-      AC_MSG_ERROR([You must specify the path to 3rd party libraries used by Graal unit tests])
-    else
-      GRAALUNIT_LIB="${with_graalunit_lib}"
-      if test ! -d "${GRAALUNIT_LIB}"; then
-        AC_MSG_RESULT([no])
-        AC_MSG_ERROR([Could not find graalunit 3rd party libraries as specified. (${with_graalunit_lib})])
-      else
-        AC_MSG_RESULT([$GRAALUNIT_LIB])
-      fi
-    fi
-  fi
-
-  UTIL_FIXUP_PATH([GRAALUNIT_LIB])
-  AC_SUBST(GRAALUNIT_LIB)
-])
-
 ###############################################################################
 #
 # Setup and check for gtest framework source files

make/autoconf/lib-x11.m4

@@ -68,6 +68,10 @@ AC_DEFUN_ONCE([LIB_SETUP_X11],
             x_libraries="$SYSROOT/usr/lib64"
           elif test -f "$SYSROOT/usr/lib/libX11.so"; then
             x_libraries="$SYSROOT/usr/lib"
+          elif test -f "$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"; then
+            x_libraries="$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"
+          elif test -f "$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU_AUTOCONF-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"; then
+            x_libraries="$SYSROOT/usr/lib/$OPENJDK_TARGET_CPU_AUTOCONF-$OPENJDK_TARGET_OS-$OPENJDK_TARGET_ABI/libX11.so"
           fi
         fi
       fi

make/autoconf/libraries.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -43,9 +43,11 @@ AC_DEFUN_ONCE([LIB_DETERMINE_DEPENDENCIES],
   if test "x$OPENJDK_TARGET_OS" = xwindows || test "x$OPENJDK_TARGET_OS" = xmacosx; then
     # No X11 support on windows or macosx
     NEEDS_LIB_X11=false
+  elif test "x$ENABLE_HEADLESS_ONLY" = xtrue; then
+    # No X11 support needed when building headless only
+    NEEDS_LIB_X11=false
   else
-    # All other instances need X11, even if building headless only, libawt still
-    # needs X11 headers.
+    # All other instances need X11
     NEEDS_LIB_X11=true
   fi
 
@@ -101,7 +103,6 @@ AC_DEFUN_ONCE([LIB_SETUP_LIBRARIES],
   LIB_SETUP_LIBFFI
   LIB_SETUP_BUNDLED_LIBS
   LIB_SETUP_MISC_LIBS
-  LIB_TESTS_SETUP_GRAALUNIT
   LIB_TESTS_SETUP_GTEST
 
   BASIC_JDKLIB_LIBS=""
@@ -122,6 +123,29 @@ AC_DEFUN_ONCE([LIB_SETUP_LIBRARIES],
     BASIC_JVM_LIBS="$BASIC_JVM_LIBS -lpthread"
   fi
 
+  # librt for legacy clock_gettime
+  if test "x$OPENJDK_TARGET_OS" = xlinux; then
+    # Hotspot needs to link librt to get the clock_* functions.
+    # But once our supported minimum build and runtime platform
+    # has glibc 2.17, this can be removed as the functions are
+    # in libc.
+    BASIC_JVM_LIBS="$BASIC_JVM_LIBS -lrt"
+  fi
+
+  # Atomic library
+  # 32-bit platforms needs fallback library for 8-byte atomic ops on Zero
+  if HOTSPOT_CHECK_JVM_VARIANT(zero); then
+    if test "x$OPENJDK_TARGET_OS" = xlinux &&
+        (test "x$OPENJDK_TARGET_CPU" = xarm ||
+         test "x$OPENJDK_TARGET_CPU" = xm68k ||
+         test "x$OPENJDK_TARGET_CPU" = xmips ||
+         test "x$OPENJDK_TARGET_CPU" = xmipsel ||
+         test "x$OPENJDK_TARGET_CPU" = xppc ||
+         test "x$OPENJDK_TARGET_CPU" = xsh); then
+      BASIC_JVM_LIBS="$BASIC_JVM_LIBS -latomic"
+    fi
+  fi
+
   # perfstat lib
   if test "x$OPENJDK_TARGET_OS" = xaix; then
     BASIC_JVM_LIBS="$BASIC_JVM_LIBS -lperfstat"

make/autoconf/platform.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -206,9 +206,9 @@ AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
       VAR_OS=windows
       VAR_OS_ENV=windows.wsl
       ;;
-    *mingw*)
+    *msys*)
       VAR_OS=windows
-      VAR_OS_ENV=windows.msys
+      VAR_OS_ENV=windows.msys2
       ;;
     *aix*)
       VAR_OS=aix
@@ -220,6 +220,51 @@ AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
   esac
 ])
 
+# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
+# Converts autoconf style OS name to OpenJDK style, into
+# VAR_LIBC.
+AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_LIBC],
+[
+  case "$1" in
+    *linux*-musl)
+      VAR_LIBC=musl
+      ;;
+    *linux*-gnu)
+      VAR_LIBC=gnu
+      ;;
+    *)
+      VAR_LIBC=default
+      ;;
+  esac
+])
+
+# Support macro for PLATFORM_EXTRACT_TARGET_AND_BUILD.
+# Converts autoconf style OS name to OpenJDK style, into
+# VAR_ABI.
+AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_ABI],
+[
+  case "$1" in
+    *linux*-musl)
+      VAR_ABI=musl
+      ;;
+    *linux*-gnu)
+      VAR_ABI=gnu
+      ;;
+    *linux*-gnueabi)
+      VAR_ABI=gnueabi
+      ;;
+    *linux*-gnueabihf)
+      VAR_ABI=gnueabihf
+      ;;
+    *linux*-gnuabi64)
+      VAR_ABI=gnuabi64
+      ;;
+    *)
+      VAR_ABI=default
+      ;;
+  esac
+])
+
 # Expects $host_os $host_cpu $build_os and $build_cpu
 # and $with_target_bits to have been setup!
 #
@@ -237,9 +282,11 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   AC_SUBST(OPENJDK_TARGET_AUTOCONF_NAME)
   AC_SUBST(OPENJDK_BUILD_AUTOCONF_NAME)
 
-  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
+  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU/LIBC variables.
   PLATFORM_EXTRACT_VARS_FROM_OS($build_os)
   PLATFORM_EXTRACT_VARS_FROM_CPU($build_cpu)
+  PLATFORM_EXTRACT_VARS_FROM_LIBC($build_os)
+  PLATFORM_EXTRACT_VARS_FROM_ABI($build_os)
   # ..and setup our own variables. (Do this explicitly to facilitate searching)
   OPENJDK_BUILD_OS="$VAR_OS"
   if test "x$VAR_OS_TYPE" != x; then
@@ -256,6 +303,9 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   OPENJDK_BUILD_CPU_ARCH="$VAR_CPU_ARCH"
   OPENJDK_BUILD_CPU_BITS="$VAR_CPU_BITS"
   OPENJDK_BUILD_CPU_ENDIAN="$VAR_CPU_ENDIAN"
+  OPENJDK_BUILD_CPU_AUTOCONF="$build_cpu"
+  OPENJDK_BUILD_LIBC="$VAR_LIBC"
+  OPENJDK_BUILD_ABI="$VAR_ABI"
   AC_SUBST(OPENJDK_BUILD_OS)
   AC_SUBST(OPENJDK_BUILD_OS_TYPE)
   AC_SUBST(OPENJDK_BUILD_OS_ENV)
@@ -263,13 +313,23 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   AC_SUBST(OPENJDK_BUILD_CPU_ARCH)
   AC_SUBST(OPENJDK_BUILD_CPU_BITS)
   AC_SUBST(OPENJDK_BUILD_CPU_ENDIAN)
+  AC_SUBST(OPENJDK_BUILD_CPU_AUTOCONF)
+  AC_SUBST(OPENJDK_BUILD_LIBC)
+  AC_SUBST(OPENJDK_BUILD_ABI)
 
   AC_MSG_CHECKING([openjdk-build os-cpu])
   AC_MSG_RESULT([$OPENJDK_BUILD_OS-$OPENJDK_BUILD_CPU])
 
-  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU variables.
+  if test "x$OPENJDK_BUILD_OS" = "xlinux"; then
+    AC_MSG_CHECKING([openjdk-build C library])
+    AC_MSG_RESULT([$OPENJDK_BUILD_LIBC])
+  fi
+
+  # Convert the autoconf OS/CPU value to our own data, into the VAR_OS/CPU/LIBC variables.
   PLATFORM_EXTRACT_VARS_FROM_OS($host_os)
   PLATFORM_EXTRACT_VARS_FROM_CPU($host_cpu)
+  PLATFORM_EXTRACT_VARS_FROM_LIBC($host_os)
+  PLATFORM_EXTRACT_VARS_FROM_ABI($host_os)
   # ... and setup our own variables. (Do this explicitly to facilitate searching)
   OPENJDK_TARGET_OS="$VAR_OS"
   if test "x$VAR_OS_TYPE" != x; then
@@ -286,7 +346,10 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   OPENJDK_TARGET_CPU_ARCH="$VAR_CPU_ARCH"
   OPENJDK_TARGET_CPU_BITS="$VAR_CPU_BITS"
   OPENJDK_TARGET_CPU_ENDIAN="$VAR_CPU_ENDIAN"
+  OPENJDK_TARGET_CPU_AUTOCONF="$host_cpu"
   OPENJDK_TARGET_OS_UPPERCASE=`$ECHO $OPENJDK_TARGET_OS | $TR 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
+  OPENJDK_TARGET_LIBC="$VAR_LIBC"
+  OPENJDK_TARGET_ABI="$VAR_ABI"
 
   AC_SUBST(OPENJDK_TARGET_OS)
   AC_SUBST(OPENJDK_TARGET_OS_TYPE)
@@ -296,9 +359,17 @@ AC_DEFUN([PLATFORM_EXTRACT_TARGET_AND_BUILD],
   AC_SUBST(OPENJDK_TARGET_CPU_ARCH)
   AC_SUBST(OPENJDK_TARGET_CPU_BITS)
   AC_SUBST(OPENJDK_TARGET_CPU_ENDIAN)
+  AC_SUBST(OPENJDK_TARGET_CPU_AUTOCONF)
+  AC_SUBST(OPENJDK_TARGET_LIBC)
+  AC_SUBST(OPENJDK_TARGET_ABI)
 
   AC_MSG_CHECKING([openjdk-target os-cpu])
   AC_MSG_RESULT([$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
+
+  if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
+    AC_MSG_CHECKING([openjdk-target C library])
+    AC_MSG_RESULT([$OPENJDK_TARGET_LIBC])
+  fi
 ])
 
 # Check if a reduced build (32-bit on 64-bit platforms) is requested, and modify behaviour
@@ -409,9 +480,11 @@ AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
   fi
 
   # The new version string in JDK 9 also defined new naming of OS and ARCH for bundles
-  # Macosx is osx and x86_64 is x64
+  # The macOS bundle name was revised in JDK 17
+  #
+  # macosx is macos and x86_64 is x64
   if test "x$OPENJDK_$1_OS" = xmacosx; then
-    OPENJDK_$1_OS_BUNDLE="osx"
+    OPENJDK_$1_OS_BUNDLE="macos"
   else
     OPENJDK_$1_OS_BUNDLE="$OPENJDK_TARGET_OS"
   fi
@@ -420,7 +493,13 @@ AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
   else
     OPENJDK_$1_CPU_BUNDLE="$OPENJDK_$1_CPU"
   fi
-  OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}"
+
+  OPENJDK_$1_LIBC_BUNDLE=""
+  if test "x$OPENJDK_$1_LIBC" = "xmusl"; then
+    OPENJDK_$1_LIBC_BUNDLE="-$OPENJDK_$1_LIBC"
+  fi
+
+  OPENJDK_$1_BUNDLE_PLATFORM="${OPENJDK_$1_OS_BUNDLE}-${OPENJDK_$1_CPU_BUNDLE}${OPENJDK_$1_LIBC_BUNDLE}"
   AC_SUBST(OPENJDK_$1_BUNDLE_PLATFORM)
 
   if test "x$COMPILE_TYPE" = "xcross"; then
@@ -493,6 +572,9 @@ AC_DEFUN([PLATFORM_SETUP_LEGACY_VARS_HELPER],
   fi
   AC_SUBST(HOTSPOT_$1_CPU_DEFINE)
 
+  HOTSPOT_$1_LIBC=$OPENJDK_$1_LIBC
+  AC_SUBST(HOTSPOT_$1_LIBC)
+
   # For historical reasons, the OS include directories have odd names.
   OPENJDK_$1_OS_INCLUDE_SUBDIR="$OPENJDK_TARGET_OS"
   if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
@@ -518,9 +600,11 @@ AC_DEFUN([PLATFORM_SET_RELEASE_FILE_OS_VALUES],
     RELEASE_FILE_OS_NAME="AIX"
   fi
   RELEASE_FILE_OS_ARCH=${OPENJDK_TARGET_CPU}
+  RELEASE_FILE_LIBC=${OPENJDK_TARGET_LIBC}
 
   AC_SUBST(RELEASE_FILE_OS_NAME)
   AC_SUBST(RELEASE_FILE_OS_ARCH)
+  AC_SUBST(RELEASE_FILE_LIBC)
 ])
 
 AC_DEFUN([PLATFORM_SET_MODULE_TARGET_OS_VALUES],

make/autoconf/source-dirs.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -28,9 +28,6 @@ AC_DEFUN_ONCE([SRCDIRS_SETUP_DIRS],
   OUTPUTDIR="$OUTPUTDIR"
   AC_SUBST(OUTPUTDIR)
   JDK_OUTPUTDIR="$OUTPUTDIR/jdk"
-
-  # Where are the sources.
-  AC_SUBST(TOPDIR)
 ])
 
 ################################################################################

make/autoconf/spec.gmk.in

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -80,6 +80,8 @@ OPENJDK_TARGET_CPU_ARCH:=@OPENJDK_TARGET_CPU_ARCH@
 OPENJDK_TARGET_CPU_BITS:=@OPENJDK_TARGET_CPU_BITS@
 OPENJDK_TARGET_CPU_ENDIAN:=@OPENJDK_TARGET_CPU_ENDIAN@
 
+OPENJDK_TARGET_LIBC:=@OPENJDK_TARGET_LIBC@
+
 COMPILE_TYPE:=@COMPILE_TYPE@
 
 # Legacy support
@@ -95,6 +97,8 @@ HOTSPOT_TARGET_CPU := @HOTSPOT_TARGET_CPU@
 HOTSPOT_TARGET_CPU_ARCH := @HOTSPOT_TARGET_CPU_ARCH@
 HOTSPOT_TARGET_CPU_DEFINE := @HOTSPOT_TARGET_CPU_DEFINE@
 
+HOTSPOT_TARGET_LIBC := @HOTSPOT_TARGET_LIBC@
+
 OPENJDK_TARGET_BUNDLE_PLATFORM:=@OPENJDK_TARGET_BUNDLE_PLATFORM@
 JDK_ARCH_ABI_PROP_NAME := @JDK_ARCH_ABI_PROP_NAME@
 
@@ -109,6 +113,8 @@ OPENJDK_BUILD_CPU_ARCH:=@OPENJDK_BUILD_CPU_ARCH@
 OPENJDK_BUILD_CPU_BITS:=@OPENJDK_BUILD_CPU_BITS@
 OPENJDK_BUILD_CPU_ENDIAN:=@OPENJDK_BUILD_CPU_ENDIAN@
 
+OPENJDK_BUILD_LIBC:=@OPENJDK_BUILD_LIBC@
+
 OPENJDK_BUILD_OS_INCLUDE_SUBDIR:=@OPENJDK_TARGET_OS_INCLUDE_SUBDIR@
 
 # Target platform value in ModuleTarget class file attribute.
@@ -117,6 +123,7 @@ OPENJDK_MODULE_TARGET_PLATFORM:=@OPENJDK_MODULE_TARGET_PLATFORM@
 # OS_* properties in release file
 RELEASE_FILE_OS_NAME:=@RELEASE_FILE_OS_NAME@
 RELEASE_FILE_OS_ARCH:=@RELEASE_FILE_OS_ARCH@
+RELEASE_FILE_LIBC:=@RELEASE_FILE_LIBC@
 
 SOURCE_DATE := @SOURCE_DATE@
 ENABLE_REPRODUCIBLE_BUILD := @ENABLE_REPRODUCIBLE_BUILD@
@@ -124,20 +131,24 @@ ENABLE_REPRODUCIBLE_BUILD := @ENABLE_REPRODUCIBLE_BUILD@
 LIBM:=@LIBM@
 LIBDL:=@LIBDL@
 
-# colon or semicolon
-PATH_SEP:=@PATH_SEP@
+WINENV_ROOT := @WINENV_ROOT@
+WINENV_PREFIX := @WINENV_PREFIX@
+
+ifneq ($(findstring windows.wsl, @OPENJDK_BUILD_OS_ENV@), )
+  # Tell WSL to convert PATH between linux and windows
+  export WSLENV := PATH/l
+else ifeq (@OPENJDK_BUILD_OS_ENV@, windows.msys2)
+  # Prohibit msys2 from attemping any path wrangling
+  export MSYS2_ARG_CONV_EXCL := "*"
+endif
 
 # Save the original path before replacing it with the Visual Studio tools
-ORIGINAL_PATH:=@ORIGINAL_PATH@
-ifeq ($(OPENJDK_TARGET_OS), windows)
-  # On Windows, the Visual Studio toolchain needs the PATH to be adjusted
-  # to include Visual Studio tools (this needs to be in cygwin/msys style).
-  ifeq ($(OPENJDK_TARGET_OS_ENV), windows.wsl)
-    export FIXPATH_PATH:=@VS_PATH_WINDOWS@
-    export WSLENV:=$(WSLENV):FIXPATH_PATH:DEBUG_FIXPATH
-  else
-    export PATH:=@VS_PATH@
-  endif
+ORIGINAL_PATH := @ORIGINAL_PATH@
+
+ifeq (@TOOLCHAIN_TYPE@, microsoft)
+  # The Visual Studio toolchain needs the PATH to be adjusted to include
+  # Visual Studio tools.
+  export PATH := @TOOLCHAIN_PATH@:$(PATH)
 endif
 
 SYSROOT_CFLAGS := @SYSROOT_CFLAGS@
@@ -170,6 +181,7 @@ COMPANY_NAME:=@COMPANY_NAME@
 HOTSPOT_VM_DISTRO:=@HOTSPOT_VM_DISTRO@
 MACOSX_BUNDLE_NAME_BASE=@MACOSX_BUNDLE_NAME_BASE@
 MACOSX_BUNDLE_ID_BASE=@MACOSX_BUNDLE_ID_BASE@
+MACOSX_BUNDLE_BUILD_VERSION=@MACOSX_BUNDLE_BUILD_VERSION@
 USERNAME:=@USERNAME@
 VENDOR_URL:=@VENDOR_URL@
 VENDOR_URL_BUG:=@VENDOR_URL_BUG@
@@ -243,7 +255,7 @@ VERSION_CFLAGS := \
     #
 
 ifneq ($(COMPANY_NAME),)
-  # COMPANY_NAME is set to "N/A" in $AUTOCONF_DIR/version-numbers by default,
+  # COMPANY_NAME is set to "N/A" in make/conf/branding.conf by default,
   # but can be customized with the '--with-vendor-name' configure option.
   # Only export "VENDOR" to the build if COMPANY_NAME contains a real value.
   # Otherwise the default value for VENDOR, which is used to set the "java.vendor"
@@ -337,6 +349,8 @@ BUILD_MANPAGES := @BUILD_MANPAGES@
 
 BUILD_CDS_ARCHIVE := @BUILD_CDS_ARCHIVE@
 
+ENABLE_COMPATIBLE_CDS_ALIGNMENT := @ENABLE_COMPATIBLE_CDS_ALIGNMENT@
+
 ALLOW_ABSOLUTE_PATHS_IN_OUTPUT := @ALLOW_ABSOLUTE_PATHS_IN_OUTPUT@
 
 # The boot jdk to use. This is overridden in bootcycle-spec.gmk. Make sure to keep
@@ -378,7 +392,6 @@ LIBFFI_LIBS:=@LIBFFI_LIBS@
 LIBFFI_CFLAGS:=@LIBFFI_CFLAGS@
 ENABLE_LIBFFI_BUNDLING:=@ENABLE_LIBFFI_BUNDLING@
 LIBFFI_LIB_FILE:=@LIBFFI_LIB_FILE@
-GRAALUNIT_LIB := @GRAALUNIT_LIB@
 FILE_MACRO_CFLAGS := @FILE_MACRO_CFLAGS@
 
 STATIC_LIBS_CFLAGS := @STATIC_LIBS_CFLAGS@
@@ -463,8 +476,7 @@ CXX_O_FLAG_NORM:=@CXX_O_FLAG_NORM@
 CXX_O_FLAG_NONE:=@CXX_O_FLAG_NONE@
 CXX_O_FLAG_SIZE:=@CXX_O_FLAG_SIZE@
 
-C_FLAG_DEPS:=@C_FLAG_DEPS@
-CXX_FLAG_DEPS:=@CXX_FLAG_DEPS@
+GENDEPS_FLAGS := @GENDEPS_FLAGS@
 
 DISABLE_WARNING_PREFIX := @DISABLE_WARNING_PREFIX@
 CFLAGS_WARNINGS_ARE_ERRORS:=@CFLAGS_WARNINGS_ARE_ERRORS@
@@ -476,10 +488,11 @@ DISABLED_WARNINGS_CXX := @DISABLED_WARNINGS_CXX@
 WARNINGS_AS_ERRORS := @WARNINGS_AS_ERRORS@
 
 CFLAGS_CCACHE:=@CFLAGS_CCACHE@
-ADLC_CXXFLAG=@ADLC_CXXFLAG@
+ADLC_LANGSTD_CXXFLAGS=@ADLC_LANGSTD_CXXFLAGS@
+ADLC_LDFLAGS=@ADLC_LDFLAGS@
 
 # Tools that potentially need to be cross compilation aware.
-CC:=@FIXPATH@ @CCACHE@ @ICECC@ @CC@
+CC := @CCACHE@ @ICECC@ @CC@
 
 # CFLAGS used to compile the jdk native libraries (C-code)
 CFLAGS_JDKLIB:=@CFLAGS_JDKLIB@
@@ -494,7 +507,8 @@ JVM_CFLAGS := @JVM_CFLAGS@
 JVM_LDFLAGS := @JVM_LDFLAGS@
 JVM_ASFLAGS := @JVM_ASFLAGS@
 JVM_LIBS := @JVM_LIBS@
-JVM_RCFLAGS := @JVM_RCFLAGS@
+
+BASIC_ASFLAGS := @BASIC_ASFLAGS@
 
 # These flags might contain variables set by a custom extension that is included later.
 EXTRA_CFLAGS = @EXTRA_CFLAGS@
@@ -502,15 +516,12 @@ EXTRA_CXXFLAGS = @EXTRA_CXXFLAGS@
 EXTRA_LDFLAGS = @EXTRA_LDFLAGS@
 EXTRA_ASFLAGS = @EXTRA_ASFLAGS@
 
-CXX:=@FIXPATH@ @CCACHE@ @ICECC@ @CXX@
+CXX := @CCACHE@ @ICECC@ @CXX@
 
-CPP:=@FIXPATH@ @CPP@
+CPP := @CPP@
 
 # The linker can be gcc or ld on unix systems, or link.exe on windows systems.
-LD:=@FIXPATH@ @LD@
-
-# Linker used by the jaotc tool for AOT compilation.
-LD_JAOTC:=@LD_JAOTC@
+LD := @LD@
 
 # Xcode SDK path
 SDKROOT:=@SDKROOT@
@@ -527,7 +538,7 @@ JDKEXE_LIBS:=@JDKEXE_LIBS@
 LDFLAGS_CXX_JDK:=@LDFLAGS_CXX_JDK@
 
 # Sometimes a different linker is needed for c++ libs
-LDCXX:=@FIXPATH@ @LDCXX@
+LDCXX := @LDCXX@
 # The flags for linking libstdc++ linker.
 LIBCXX:=@LIBCXX@
 
@@ -536,22 +547,22 @@ LDFLAGS_TESTEXE:=@LDFLAGS_TESTEXE@
 
 # BUILD_CC/BUILD_LD is a compiler/linker that generates code that is runnable on the
 # build platform.
-BUILD_CC:=@FIXPATH@ @BUILD_ICECC@ @BUILD_CC@
-BUILD_CXX:=@FIXPATH@ @BUILD_ICECC@ @BUILD_CXX@
-BUILD_LD:=@FIXPATH@ @BUILD_LD@
-BUILD_LDCXX:=@FIXPATH@ @BUILD_LDCXX@
-BUILD_AS:=@FIXPATH@ @BUILD_AS@
-BUILD_AR:=@FIXPATH@ @BUILD_AR@
-BUILD_NM:=@FIXPATH@ @BUILD_NM@
+BUILD_CC := @BUILD_ICECC@ @BUILD_CC@
+BUILD_CXX := @BUILD_ICECC@ @BUILD_CXX@
+BUILD_LD := @BUILD_LD@
+BUILD_LDCXX := @BUILD_LDCXX@
+BUILD_AS := @BUILD_AS@
+BUILD_AR := @BUILD_AR@
+BUILD_NM := @BUILD_NM@
 BUILD_OBJCOPY:=@BUILD_OBJCOPY@
 BUILD_STRIP:=@BUILD_STRIP@
 BUILD_SYSROOT_CFLAGS:=@BUILD_SYSROOT_CFLAGS@
 BUILD_SYSROOT_LDFLAGS:=@BUILD_SYSROOT_LDFLAGS@
 
-AS:=@FIXPATH@ @AS@
+AS := @AS@
 
 # AR is used to create a static library (is ar in unix, lib.exe in windows)
-AR:=@FIXPATH@ @AR@
+AR := @AR@
 ARFLAGS:=@ARFLAGS@
 
 NM:=@NM@
@@ -562,6 +573,8 @@ CXXFILT:=@CXXFILT@
 
 LIPO:=@LIPO@
 INSTALL_NAME_TOOL:=@INSTALL_NAME_TOOL@
+METAL := @METAL@
+METALLIB := @METALLIB@
 
 # Options to linker to specify a mapfile.
 # (Note absence of := assignment, because we do not want to evaluate the macro body here)
@@ -600,7 +613,7 @@ STATIC_LIBRARY=@STATIC_LIBRARY@
 LIBRARY_PREFIX:=@LIBRARY_PREFIX@
 SHARED_LIBRARY_SUFFIX:=@SHARED_LIBRARY_SUFFIX@
 STATIC_LIBRARY_SUFFIX:=@STATIC_LIBRARY_SUFFIX@
-EXE_SUFFIX:=@EXE_SUFFIX@
+EXECUTABLE_SUFFIX:=@EXECUTABLE_SUFFIX@
 OBJ_SUFFIX:=@OBJ_SUFFIX@
 STATIC_BUILD:=@STATIC_BUILD@
 
@@ -621,23 +634,23 @@ JAVADOC_CMD:=@JAVADOC@
 JAR_CMD:=@JAR@
 JLINK_CMD := @JLINK@
 JMOD_CMD := @JMOD@
-JARSIGNER_CMD:=@JARSIGNER@
 # These variables are meant to be used. They are defined with = instead of := to make
 # it possible to override only the *_CMD variables.
-JAVA=@FIXPATH@ $(JAVA_CMD) $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)
-JAVA_SMALL=@FIXPATH@ $(JAVA_CMD) $(JAVA_FLAGS_SMALL) $(JAVA_FLAGS)
-JAVA_DETACH =@FIXPATH@ @FIXPATH_DETACH_FLAG@ $(JAVA_CMD) $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)
-JAVAC=@FIXPATH@ $(JAVAC_CMD)
-JAVADOC=@FIXPATH@ $(JAVADOC_CMD)
-JAR=@FIXPATH@ $(JAR_CMD)
-JLINK = @FIXPATH@ $(JLINK_CMD)
-JMOD = @FIXPATH@ $(JMOD_CMD) $(JAVA_TOOL_FLAGS_SMALL)
-JARSIGNER=@FIXPATH@ $(JARSIGNER_CMD)
+JAVA = $(JAVA_CMD) $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)
+JAVA_SMALL = $(JAVA_CMD) $(JAVA_FLAGS_SMALL) $(JAVA_FLAGS)
+JAVAC = $(JAVAC_CMD)
+JAVADOC = $(JAVADOC_CMD)
+JAR = $(JAR_CMD)
+JLINK = $(JLINK_CMD)
+JMOD = $(JMOD_CMD) $(JAVA_TOOL_FLAGS_SMALL)
 
 BUILD_JAVA_FLAGS := @BOOTCYCLE_JVM_ARGS_BIG@
 BUILD_JAVA=@FIXPATH@ $(BUILD_JDK)/bin/java $(BUILD_JAVA_FLAGS)
+BUILD_JAVAC=@FIXPATH@ $(BUILD_JDK)/bin/javac
 BUILD_JAR=@FIXPATH@ $(BUILD_JDK)/bin/jar
 
+DOCS_REFERENCE_JAVADOC := @DOCS_REFERENCE_JAVADOC@
+
 # Interim langtools modules and arguments
 INTERIM_LANGTOOLS_BASE_MODULES := java.compiler jdk.compiler jdk.javadoc
 INTERIM_LANGTOOLS_MODULES := $(addsuffix .interim, $(INTERIM_LANGTOOLS_BASE_MODULES))
@@ -646,6 +659,8 @@ INTERIM_LANGTOOLS_ADD_EXPORTS := \
     --add-exports java.base/jdk.internal.jmod=jdk.compiler.interim \
     --add-exports java.base/jdk.internal.misc=jdk.compiler.interim \
     --add-exports java.base/sun.invoke.util=jdk.compiler.interim \
+    --add-exports java.base/jdk.internal.javac=java.compiler.interim \
+    --add-exports java.base/jdk.internal.javac=jdk.compiler.interim \
     #
 INTERIM_LANGTOOLS_MODULES_COMMA := $(strip $(subst $(SPACE),$(COMMA),$(strip \
     $(INTERIM_LANGTOOLS_MODULES))))
@@ -653,6 +668,7 @@ INTERIM_LANGTOOLS_ARGS := \
     --limit-modules java.base,jdk.zipfs,$(INTERIM_LANGTOOLS_MODULES_COMMA) \
     --add-modules $(INTERIM_LANGTOOLS_MODULES_COMMA) \
     --module-path $(BUILDTOOLS_OUTPUTDIR)/interim_langtools_modules \
+    --patch-module java.base=$(BUILDTOOLS_OUTPUTDIR)/gensrc/java.base.interim \
     $(INTERIM_LANGTOOLS_ADD_EXPORTS) \
     #
 JAVAC_MAIN_CLASS = -m jdk.compiler.interim/com.sun.tools.javac.Main
@@ -665,12 +681,7 @@ NEW_JAVADOC = $(INTERIM_LANGTOOLS_ARGS) $(JAVADOC_MAIN_CLASS)
 
 JLINK_KEEP_PACKAGED_MODULES:=@JLINK_KEEP_PACKAGED_MODULES@
 
-# Base flags for RC
-# Guarding this against resetting value. Legacy make files include spec multiple
-# times.
-ifndef RC_FLAGS
-  RC_FLAGS:=@RC_FLAGS@
-endif
+RCFLAGS := @RCFLAGS@
 
 # Tools adhering to a minimal and common standard of posix compliance.
 AWK:=@AWK@
@@ -681,9 +692,7 @@ CCACHE:=@CCACHE@
 CD:=cd
 CHMOD:=@CHMOD@
 CODESIGN:=@CODESIGN@
-COMM:=@COMM@
 CP:=@CP@
-CPIO:=@CPIO@
 CUT:=@CUT@
 DATE:=@DATE@
 DIFF:=@DIFF@
@@ -703,9 +712,8 @@ LN:=@LN@
 MIG:=@MIG@
 MKDIR:=@MKDIR@
 MV:=@MV@
-NAWK:=@NAWK@
 NICE:=@NICE@
-PANDOC:=@FIXPATH@ @PANDOC@
+PANDOC:=@PANDOC@
 PATCH:=@PATCH@
 PRINTF:=@PRINTF@
 READLINK:=@READLINK@
@@ -721,15 +729,14 @@ TIME:=@TIME@
 IS_GNU_TIME:=@IS_GNU_TIME@
 TR:=@TR@
 TOUCH:=@TOUCH@
-UNIQ:=@UNIQ@
 WC:=@WC@
 XARGS:=@XARGS@
 ZIPEXE:=@ZIPEXE@
 UNZIP:=@UNZIP@
-MT:=@FIXPATH@ @MT@
-RC:=@FIXPATH@ @RC@
-DUMPBIN:=@FIXPATH@ @DUMPBIN@
-CYGPATH:=@CYGPATH@
+MT:=@MT@
+RC:=@RC@
+DUMPBIN:=@DUMPBIN@
+PATHTOOL:=@PATHTOOL@
 WSLPATH:=@WSLPATH@
 LDD:=@LDD@
 OTOOL:=@OTOOL@
@@ -746,7 +753,8 @@ JT_HOME:=@JT_HOME@
 JIB_HOME:=@JIB_HOME@
 XCODEBUILD=@XCODEBUILD@
 DTRACE := @DTRACE@
-FIXPATH:=@FIXPATH@
+FIXPATH := @FIXPATH@
+FIXPATH_BASE := @FIXPATH_BASE@
 ULIMIT:=@ULIMIT@
 
 TAR_TYPE:=@TAR_TYPE@
@@ -754,8 +762,6 @@ TAR_INCLUDE_PARAM:=@TAR_INCLUDE_PARAM@
 TAR_SUPPORTS_TRANSFORM:=@TAR_SUPPORTS_TRANSFORM@
 
 # Build setup
-ENABLE_AOT:=@ENABLE_AOT@
-ENABLE_INTREE_EC:=@ENABLE_INTREE_EC@
 USE_EXTERNAL_LIBJPEG:=@USE_EXTERNAL_LIBJPEG@
 USE_EXTERNAL_LIBGIF:=@USE_EXTERNAL_LIBGIF@
 USE_EXTERNAL_LIBZ:=@USE_EXTERNAL_LIBZ@
@@ -829,6 +835,10 @@ USE_EXTERNAL_LCMS:=@USE_EXTERNAL_LCMS@
 LCMS_CFLAGS:=@LCMS_CFLAGS@
 LCMS_LIBS:=@LCMS_LIBS@
 
+USE_EXTERNAL_HARFBUZZ:=@USE_EXTERNAL_HARFBUZZ@
+HARFBUZZ_CFLAGS:=@HARFBUZZ_CFLAGS@
+HARFBUZZ_LIBS:=@HARFBUZZ_LIBS@
+
 USE_EXTERNAL_LIBPNG:=@USE_EXTERNAL_LIBPNG@
 PNG_LIBS:=@PNG_LIBS@
 PNG_CFLAGS:=@PNG_CFLAGS@
@@ -839,7 +849,6 @@ PNG_CFLAGS:=@PNG_CFLAGS@
 #
 
 INCLUDE_SA=@INCLUDE_SA@
-INCLUDE_GRAAL=@INCLUDE_GRAAL@
 INCLUDE_JVMCI=@INCLUDE_JVMCI@
 
 OS_VERSION_MAJOR:=@OS_VERSION_MAJOR@
@@ -869,10 +878,14 @@ INTERIM_JMODS_DIR := $(SUPPORT_OUTPUTDIR)/interim-jmods
 INTERIM_IMAGE_DIR := $(SUPPORT_OUTPUTDIR)/interim-image
 
 # Docs image
-DOCS_IMAGE_SUBDIR := docs
-DOCS_IMAGE_DIR = $(IMAGES_OUTPUTDIR)/$(DOCS_IMAGE_SUBDIR)
+DOCS_JDK_IMAGE_SUBDIR := docs
+DOCS_JDK_IMAGE_DIR = $(IMAGES_OUTPUTDIR)/$(DOCS_JDK_IMAGE_SUBDIR)
+DOCS_JAVASE_IMAGE_SUBDIR := docs-javase
+DOCS_JAVASE_IMAGE_DIR = $(IMAGES_OUTPUTDIR)/$(DOCS_JAVASE_IMAGE_SUBDIR)
+DOCS_REFERENCE_IMAGE_SUBDIR := docs-reference
+DOCS_REFERENCE_IMAGE_DIR = $(IMAGES_OUTPUTDIR)/$(DOCS_REFERENCE_IMAGE_SUBDIR)
 # Output docs directly into image
-DOCS_OUTPUTDIR := $(DOCS_IMAGE_DIR)
+DOCS_OUTPUTDIR := $(DOCS_JDK_IMAGE_DIR)
 
 # Static libs image
 STATIC_LIBS_IMAGE_SUBDIR := static-libs
@@ -915,7 +928,9 @@ JRE_BUNDLE_NAME := jre-$(BASE_NAME)_bin$(DEBUG_PART).$(JDK_BUNDLE_EXTENSION)
 JDK_SYMBOLS_BUNDLE_NAME := jdk-$(BASE_NAME)_bin$(DEBUG_PART)-symbols.tar.gz
 TEST_DEMOS_BUNDLE_NAME := jdk-$(BASE_NAME)_bin-tests-demos$(DEBUG_PART).tar.gz
 TEST_BUNDLE_NAME := jdk-$(BASE_NAME)_bin-tests$(DEBUG_PART).tar.gz
-DOCS_BUNDLE_NAME := jdk-$(BASE_NAME)_doc-api-spec$(DEBUG_PART).tar.gz
+DOCS_JDK_BUNDLE_NAME := jdk-$(BASE_NAME)_doc-api-spec$(DEBUG_PART).tar.gz
+DOCS_JAVASE_BUNDLE_NAME := javase-$(BASE_NAME)_doc-api-spec$(DEBUG_PART).tar.gz
+DOCS_REFERENCE_BUNDLE_NAME := jdk-reference-$(BASE_NAME)_doc-api-spec$(DEBUG_PART).tar.gz
 STATIC_LIBS_BUNDLE_NAME := jdk-$(BASE_NAME)_bin-static-libs$(DEBUG_PART).tar.gz
 JCOV_BUNDLE_NAME := jdk-jcov-$(BASE_NAME)_bin$(DEBUG_PART).$(JDK_BUNDLE_EXTENSION)
 
@@ -924,7 +939,9 @@ JRE_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(JRE_BUNDLE_NAME)
 JDK_SYMBOLS_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(JDK_SYMBOLS_BUNDLE_NAME)
 TEST_DEMOS_BUNDLE := $(BUNDLES_OUTPUTDIR)/$(TEST_DEMOS_BUNDLE_NAME)
 TEST_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(TEST_BUNDLE_NAME)
-DOCS_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(DOCS_BUNDLE_NAME)
+DOCS_JDK_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(DOCS_JDK_BUNDLE_NAME)
+DOCS_JAVASE_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(DOCS_JAVASE_BUNDLE_NAME)
+DOCS_REFERENCE_BUNDLE :=  $(BUNDLES_OUTPUTDIR)/$(DOCS_REFERENCE_BUNDLE_NAME)
 JCOV_BUNDLE := $(BUNDLES_OUTPUTDIR)/$(JCOV_BUNDLE_NAME)
 
 # This macro is called to allow inclusion of closed source counterparts.

make/autoconf/toolchain.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -32,7 +32,7 @@
 # compilers and related tools that are used.
 ########################################################################
 
-m4_include([toolchain_windows.m4])
+m4_include([toolchain_microsoft.m4])
 
 # All valid toolchains, regardless of platform (used by help.m4)
 VALID_TOOLCHAINS_all="gcc clang xlc microsoft"
@@ -50,9 +50,9 @@ TOOLCHAIN_DESCRIPTION_microsoft="Microsoft Visual Studio"
 TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
 
 # Minimum supported versions, empty means unspecified
-TOOLCHAIN_MINIMUM_VERSION_clang="3.2"
+TOOLCHAIN_MINIMUM_VERSION_clang="3.5"
 TOOLCHAIN_MINIMUM_VERSION_gcc="5.0"
-TOOLCHAIN_MINIMUM_VERSION_microsoft="16.00.30319.01" # VS2010
+TOOLCHAIN_MINIMUM_VERSION_microsoft="19.10.0.0" # VS2017
 TOOLCHAIN_MINIMUM_VERSION_xlc=""
 
 # Minimum supported linker versions, empty means unspecified
@@ -179,6 +179,7 @@ AC_DEFUN([TOOLCHAIN_SETUP_FILENAME_PATTERNS],
     SHARED_LIBRARY='[$]1.dll'
     STATIC_LIBRARY='[$]1.lib'
     OBJ_SUFFIX='.obj'
+    EXECUTABLE_SUFFIX='.exe'
   else
     LIBRARY_PREFIX=lib
     SHARED_LIBRARY_SUFFIX='.so'
@@ -186,6 +187,7 @@ AC_DEFUN([TOOLCHAIN_SETUP_FILENAME_PATTERNS],
     SHARED_LIBRARY='lib[$]1.so'
     STATIC_LIBRARY='lib[$]1.a'
     OBJ_SUFFIX='.o'
+    EXECUTABLE_SUFFIX=''
     if test "x$OPENJDK_TARGET_OS" = xmacosx; then
       # For full static builds, we're overloading the SHARED_LIBRARY
       # variables in order to limit the amount of changes required.
@@ -209,6 +211,7 @@ AC_DEFUN([TOOLCHAIN_SETUP_FILENAME_PATTERNS],
   AC_SUBST(SHARED_LIBRARY)
   AC_SUBST(STATIC_LIBRARY)
   AC_SUBST(OBJ_SUFFIX)
+  AC_SUBST(EXECUTABLE_SUFFIX)
 ])
 
 # Determine which toolchain type to use, and make sure it is valid for this
@@ -292,12 +295,12 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
 
   TOOLCHAIN_CC_BINARY_clang="clang"
   TOOLCHAIN_CC_BINARY_gcc="gcc"
-  TOOLCHAIN_CC_BINARY_microsoft="cl$EXE_SUFFIX"
+  TOOLCHAIN_CC_BINARY_microsoft="cl"
   TOOLCHAIN_CC_BINARY_xlc="xlclang"
 
   TOOLCHAIN_CXX_BINARY_clang="clang++"
   TOOLCHAIN_CXX_BINARY_gcc="g++"
-  TOOLCHAIN_CXX_BINARY_microsoft="cl$EXE_SUFFIX"
+  TOOLCHAIN_CXX_BINARY_microsoft="cl"
   TOOLCHAIN_CXX_BINARY_xlc="xlclang++"
 
   # Use indirect variable referencing
@@ -325,9 +328,6 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
 # special setup, e.g. additional paths etc.
 AC_DEFUN_ONCE([TOOLCHAIN_PRE_DETECTION],
 [
-  # FIXME: Is this needed?
-  AC_LANG(C++)
-
   # Store the CFLAGS etc passed to the configure script.
   ORG_CFLAGS="$CFLAGS"
   ORG_CXXFLAGS="$CXXFLAGS"
@@ -335,52 +335,26 @@ AC_DEFUN_ONCE([TOOLCHAIN_PRE_DETECTION],
   # autoconf magic only relies on PATH, so update it if tools dir is specified
   OLD_PATH="$PATH"
 
-  # On Windows, we need to detect the visual studio installation first.
-  # This will change the PATH, but we need to keep that new PATH even
-  # after toolchain detection is done, since the compiler (on x86) uses
-  # it for DLL resolution in runtime.
-  if test "x$OPENJDK_BUILD_OS" = "xwindows" \
-      && test "x$TOOLCHAIN_TYPE" = "xmicrosoft"; then
-    TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV
-    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-      # Append VS_PATH. In WSL, VS_PATH will not contain the WSL env path needed
-      # for using basic Unix tools, so need to keep the original PATH.
-      UTIL_APPEND_TO_PATH(PATH, $VS_PATH)
-      UTIL_APPEND_TO_PATH(WSLENV, "PATH/l:LIB:INCLUDE")
-      export WSLENV
-    else
-      # Reset path to VS_PATH. It will include everything that was on PATH at the time we
-      # ran TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV.
-      PATH="$VS_PATH"
-    fi
-    # The microsoft toolchain also requires INCLUDE and LIB to be set.
-    export INCLUDE="$VS_INCLUDE"
-    export LIB="$VS_LIB"
-  else
-    if test "x$XCODE_VERSION_OUTPUT" != x; then
-      # For Xcode, we set the Xcode version as TOOLCHAIN_VERSION
-      TOOLCHAIN_VERSION=`$ECHO $XCODE_VERSION_OUTPUT | $CUT -f 2 -d ' '`
-      TOOLCHAIN_DESCRIPTION="$TOOLCHAIN_DESCRIPTION from Xcode $TOOLCHAIN_VERSION"
-    else
-      # Currently we do not define this for other toolchains. This might change as the need arise.
-      TOOLCHAIN_VERSION=
-    fi
+  if test "x$XCODE_VERSION_OUTPUT" != x; then
+    # For Xcode, we set the Xcode version as TOOLCHAIN_VERSION
+    TOOLCHAIN_VERSION=`$ECHO $XCODE_VERSION_OUTPUT | $CUT -f 2 -d ' '`
+    TOOLCHAIN_DESCRIPTION="$TOOLCHAIN_DESCRIPTION from Xcode $TOOLCHAIN_VERSION"
   fi
   AC_SUBST(TOOLCHAIN_VERSION)
 
-  # Finally add TOOLCHAIN_PATH at the beginning, to allow --with-tools-dir to
+  # Finally prepend TOOLCHAIN_PATH to the PATH, to allow --with-tools-dir to
   # override all other locations.
   if test "x$TOOLCHAIN_PATH" != x; then
-    PATH=$TOOLCHAIN_PATH:$PATH
+    export PATH=$TOOLCHAIN_PATH:$PATH
   fi
 ])
 
 # Restore path, etc
 AC_DEFUN_ONCE([TOOLCHAIN_POST_DETECTION],
 [
-  # Restore old path, except for the microsoft toolchain, which requires VS_PATH
-  # to remain in place. Otherwise the compiler will not work in some siutations
-  # in later configure checks.
+  # Restore old path, except for the microsoft toolchain, which requires the
+  # toolchain path to remain in place. Otherwise the compiler will not work in
+  # some siutations in later configure checks.
   if test "x$TOOLCHAIN_TYPE" != "xmicrosoft"; then
     PATH="$OLD_PATH"
   fi
@@ -427,7 +401,7 @@ AC_DEFUN([TOOLCHAIN_EXTRACT_COMPILER_VERSION],
     # First line typically looks something like:
     # Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86
     # but the compiler name may vary depending on locale.
-    COMPILER_VERSION_OUTPUT=`"$COMPILER" 2>&1 | $GREP -v 'ERROR.*UtilTranslatePathList' | $HEAD -n 1 | $TR -d '\r'`
+    COMPILER_VERSION_OUTPUT=`$COMPILER 2>&1 1>/dev/null | $HEAD -n 1 | $TR -d '\r'`
     # Check that this is likely to be Microsoft CL.EXE.
     $ECHO "$COMPILER_VERSION_OUTPUT" | $GREP "Microsoft" > /dev/null
     if test $? -ne 0; then
@@ -506,7 +480,7 @@ AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
     if test "x`basename [$]$1`" = "x[$]$1"; then
       # A command without a complete path is provided, search $PATH.
 
-      AC_PATH_PROGS(POTENTIAL_$1, [$]$1)
+      UTIL_LOOKUP_PROGS(POTENTIAL_$1, [$]$1)
       if test "x$POTENTIAL_$1" != x; then
         $1=$POTENTIAL_$1
       else
@@ -528,34 +502,16 @@ AC_DEFUN([TOOLCHAIN_FIND_COMPILER],
     # If we are not cross compiling, then the default compiler name will be
     # used.
 
-    $1=
-    # If TOOLCHAIN_PATH is set, check for all compiler names in there first
-    # before checking the rest of the PATH.
-    # FIXME: Now that we prefix the TOOLS_DIR to the PATH in the PRE_DETECTION
-    # step, this should not be necessary.
-    if test -n "$TOOLCHAIN_PATH"; then
-      PATH_save="$PATH"
-      PATH="$TOOLCHAIN_PATH"
-      AC_PATH_TOOL(TOOLCHAIN_PATH_$1, $SEARCH_LIST)
-      $1=$TOOLCHAIN_PATH_$1
-      PATH="$PATH_save"
-    fi
-
-    # AC_PATH_TOOL can't be run multiple times with the same variable,
-    # so create a new name for this run.
-    if test "x[$]$1" = x; then
-      AC_PATH_TOOL(POTENTIAL_$1, $SEARCH_LIST)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(POTENTIAL_$1, $SEARCH_LIST)
+    if test "x$POTENTIAL_$1" != x; then
       $1=$POTENTIAL_$1
-    fi
-
-    if test "x[$]$1" = x; then
+    else
       HELP_MSG_MISSING_DEPENDENCY([devkit])
       AC_MSG_ERROR([Could not find a $COMPILER_NAME compiler. $HELP_MSG])
     fi
   fi
 
   # Now we have a compiler binary in $1. Make sure it's okay.
-  UTIL_FIXUP_EXECUTABLE($1)
   TEST_COMPILER="[$]$1"
 
   AC_MSG_CHECKING([resolved symbolic links for $1])
@@ -596,12 +552,7 @@ AC_DEFUN([TOOLCHAIN_EXTRACT_LD_VERSION],
     # There is no specific version flag, but all output starts with a version string.
     # First line typically looks something like:
     #   Microsoft (R) Incremental Linker Version 12.00.31101.0
-    # Reset PATH since it can contain a mix of WSL/linux paths and Windows paths from VS,
-    # which, in combination with WSLENV, will make the WSL layer complain
-    old_path="$PATH"
-    PATH=
-    LINKER_VERSION_STRING=`$LD 2>&1 | $HEAD -n 1 | $TR -d '\r'`
-    PATH="$old_path"
+    LINKER_VERSION_STRING=`$LINKER 2>&1 | $HEAD -n 1 | $TR -d '\r'`
     # Extract version number
     [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
         $SED -e 's/.* \([0-9][0-9]*\(\.[0-9][0-9]*\)*\).*/\1/'` ]
@@ -612,7 +563,7 @@ AC_DEFUN([TOOLCHAIN_EXTRACT_LD_VERSION],
     #   This program is free software; [...]
     # If using gold it will look like:
     #   GNU gold (GNU Binutils 2.30) 1.15
-    LINKER_VERSION_STRING=`$LD -Wl,--version 2> /dev/null | $HEAD -n 1`
+    LINKER_VERSION_STRING=`$LINKER -Wl,--version 2> /dev/null | $HEAD -n 1`
     # Extract version number
     if [ [[ "$LINKER_VERSION_STRING" == *gold* ]] ]; then
       [ LINKER_VERSION_NUMBER=`$ECHO $LINKER_VERSION_STRING | \
@@ -629,7 +580,7 @@ AC_DEFUN([TOOLCHAIN_EXTRACT_LD_VERSION],
     # or
     #   GNU ld (GNU Binutils for Ubuntu) 2.26.1
 
-    LINKER_VERSION_STRING=`$LD -Wl,-v 2>&1 | $HEAD -n 1`
+    LINKER_VERSION_STRING=`$LINKER -Wl,-v 2>&1 | $HEAD -n 1`
     # Check if we're using the GNU ld
     $ECHO "$LINKER_VERSION_STRING" | $GREP "GNU" > /dev/null
     if test $? -eq 0; then
@@ -649,6 +600,23 @@ AC_DEFUN([TOOLCHAIN_EXTRACT_LD_VERSION],
   AC_MSG_NOTICE([Using $TOOLCHAIN_TYPE $LINKER_NAME version $LINKER_VERSION_NUMBER @<:@$LINKER_VERSION_STRING@:>@])
 ])
 
+# Make sure we did not pick up /usr/bin/link, which is the unix-style link
+# executable.
+#
+# $1 = linker to test (LD or BUILD_LD)
+AC_DEFUN(TOOLCHAIN_VERIFY_LINK_BINARY,
+[
+  LINKER=[$]$1
+
+  AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
+  $LINKER --version > /dev/null
+  if test $? -eq 0 ; then
+    AC_MSG_RESULT([no])
+    AC_MSG_ERROR([$LINKER is the winenv link tool. Please check your PATH and rerun configure.])
+  else
+    AC_MSG_RESULT([yes])
+  fi
+])
 # Detect the core components of the toolchain, i.e. the compilers (CC and CXX),
 # preprocessor (CPP and CXXCPP), the linker (LD), the assembler (AS) and the
 # archiver (AR). Verify that the compilers are correct according to the
@@ -693,42 +661,15 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
   #
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
     # In the Microsoft toolchain we have a separate LD command "link".
-    # Make sure we reject /usr/bin/link (as determined in CYGWIN_LINK), which is
-    # a cygwin program for something completely different.
-    AC_CHECK_PROG([LD], [link$EXE_SUFFIX],[link$EXE_SUFFIX],,, [$CYGWIN_LINK])
-    UTIL_FIXUP_EXECUTABLE(LD)
-    # Verify that we indeed succeeded with this trick.
-    AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
-
-    # Reset PATH since it can contain a mix of WSL/linux paths and Windows paths from VS,
-    # which, in combination with WSLENV, will make the WSL layer complain
-    old_path="$PATH"
-    PATH=
-
-    "$LD" --version > /dev/null
-
-    if test $? -eq 0 ; then
-      AC_MSG_RESULT([no])
-      AC_MSG_ERROR([This is the Cygwin link tool. Please check your PATH and rerun configure.])
-    else
-      AC_MSG_RESULT([yes])
-    fi
-
-    PATH="$old_path"
-
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(LD, link)
+    TOOLCHAIN_VERIFY_LINK_BINARY(LD)
     LDCXX="$LD"
-    # jaotc being a windows program expects the linker to be supplied with exe suffix.
-    LD_JAOTC="$LD$EXE_SUFFIX"
   else
     # All other toolchains use the compiler to link.
     LD="$CC"
     LDCXX="$CXX"
-    # jaotc expects 'ld' as the linker rather than the compiler.
-    UTIL_CHECK_TOOLS([LD_JAOTC], ld)
-    UTIL_FIXUP_EXECUTABLE(LD_JAOTC)
   fi
   AC_SUBST(LD)
-  AC_SUBST(LD_JAOTC)
   # FIXME: it should be CXXLD, according to standard (cf CXXCPP)
   AC_SUBST(LDCXX)
 
@@ -746,8 +687,17 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
   #
   # Setup the assembler (AS)
   #
-  # FIXME: is this correct for microsoft?
-  AS="$CC -c"
+  if test "x$TOOLCHAIN_TYPE" != xmicrosoft; then
+    AS="$CC -c"
+  else
+    if test "x$OPENJDK_TARGET_CPU_BITS" = "x64"; then
+      # On 64 bit windows, the assember is "ml64.exe"
+      UTIL_LOOKUP_TOOLCHAIN_PROGS(AS, ml64)
+    else
+      # otherwise, the assember is "ml.exe"
+      UTIL_LOOKUP_TOOLCHAIN_PROGS(AS, ml)
+    fi
+  fi
   AC_SUBST(AS)
 
   #
@@ -755,13 +705,12 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
   #
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
     # The corresponding ar tool is lib.exe (used to create static libraries)
-    AC_CHECK_PROG([AR], [lib$EXE_SUFFIX],[lib$EXE_SUFFIX],,,)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(AR, lib)
   elif test "x$TOOLCHAIN_TYPE" = xgcc; then
-    UTIL_CHECK_TOOLS(AR, ar gcc-ar)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(AR, ar gcc-ar)
   else
-    UTIL_CHECK_TOOLS(AR, ar)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(AR, ar)
   fi
-  UTIL_FIXUP_EXECUTABLE(AR)
 ])
 
 # Setup additional tools that is considered a part of the toolchain, but not the
@@ -770,41 +719,52 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
 AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_EXTRA],
 [
   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
-    UTIL_PATH_PROGS(LIPO, lipo)
-    UTIL_FIXUP_EXECUTABLE(LIPO)
+    UTIL_LOOKUP_PROGS(LIPO, lipo)
     UTIL_REQUIRE_PROGS(OTOOL, otool)
-    UTIL_FIXUP_EXECUTABLE(OTOOL)
     UTIL_REQUIRE_PROGS(INSTALL_NAME_TOOL, install_name_tool)
-    UTIL_FIXUP_EXECUTABLE(INSTALL_NAME_TOOL)
+
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(METAL, metal)
+    if test "x$METAL" = x; then
+      AC_MSG_CHECKING([if metal can be run using xcrun])
+      METAL="xcrun -sdk macosx metal"
+      test_metal=`$METAL --version 2>&1`
+      if test $? -ne 0; then
+        AC_MSG_RESULT([no])
+        AC_MSG_ERROR([XCode tool 'metal' neither found in path nor with xcrun])
+      else
+        AC_MSG_RESULT([yes, will be using '$METAL'])
+      fi
+    fi
+
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(METALLIB, metallib)
+    if test "x$METALLIB" = x; then
+      AC_MSG_CHECKING([if metallib can be run using xcrun])
+      METALLIB="xcrun -sdk macosx metallib"
+      test_metallib=`$METALLIB --version 2>&1`
+      if test $? -ne 0; then
+        AC_MSG_RESULT([no])
+        AC_MSG_ERROR([XCode tool 'metallib' neither found in path nor with xcrun])
+      else
+        AC_MSG_RESULT([yes, will be using '$METALLIB'])
+      fi
+    fi
   fi
 
   if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    AC_CHECK_PROG([MT], [mt$EXE_SUFFIX], [mt$EXE_SUFFIX],,, [/usr/bin/mt])
-    UTIL_FIXUP_EXECUTABLE(MT)
+    # Setup the manifest tool (MT)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(MT, mt)
     # Setup the resource compiler (RC)
-    AC_CHECK_PROG([RC], [rc$EXE_SUFFIX], [rc$EXE_SUFFIX],,, [/usr/bin/rc])
-    UTIL_FIXUP_EXECUTABLE(RC)
-    AC_CHECK_PROG([DUMPBIN], [dumpbin$EXE_SUFFIX], [dumpbin$EXE_SUFFIX],,,)
-    UTIL_FIXUP_EXECUTABLE(DUMPBIN)
-    # We need to check for 'msbuild.exe' because at the place where we expect to
-    # find 'msbuild.exe' there's also a directory called 'msbuild' and configure
-    # won't find the 'msbuild.exe' executable in that case (and the
-    # 'ac_executable_extensions' is unusable due to performance reasons).
-    # Notice that we intentionally don't fix up the path to MSBUILD because we
-    # will call it in a DOS shell during freetype detection on Windows (see
-    # 'LIB_SETUP_FREETYPE' in "libraries.m4"
-    AC_CHECK_PROG([MSBUILD], [msbuild$EXE_SUFFIX], [msbuild$EXE_SUFFIX],,,)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(RC, rc)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(DUMPBIN, dumpbin)
   fi
 
   if test "x$OPENJDK_TARGET_OS" != xwindows; then
-    UTIL_CHECK_TOOLS(STRIP, strip)
-    UTIL_FIXUP_EXECUTABLE(STRIP)
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(STRIP, strip)
     if test "x$TOOLCHAIN_TYPE" = xgcc; then
-      UTIL_CHECK_TOOLS(NM, nm gcc-nm)
+      UTIL_LOOKUP_TOOLCHAIN_PROGS(NM, nm gcc-nm)
     else
-      UTIL_CHECK_TOOLS(NM, nm)
+      UTIL_LOOKUP_TOOLCHAIN_PROGS(NM, nm)
     fi
-    UTIL_FIXUP_EXECUTABLE(NM)
     GNM="$NM"
     AC_SUBST(GNM)
   fi
@@ -812,25 +772,14 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_EXTRA],
   # objcopy is used for moving debug symbols to separate files when
   # full debug symbols are enabled.
   if test "x$OPENJDK_TARGET_OS" = xlinux; then
-    UTIL_CHECK_TOOLS(OBJCOPY, [gobjcopy objcopy])
-    # Only call fixup if objcopy was found.
-    if test -n "$OBJCOPY"; then
-      UTIL_FIXUP_EXECUTABLE(OBJCOPY)
-    fi
+    UTIL_LOOKUP_TOOLCHAIN_PROGS(OBJCOPY, gobjcopy objcopy)
   fi
 
-  UTIL_CHECK_TOOLS(OBJDUMP, [gobjdump objdump])
-  if test "x$OBJDUMP" != x; then
-    # Only used for compare.sh; we can live without it. UTIL_FIXUP_EXECUTABLE
-    # bails if argument is missing.
-    UTIL_FIXUP_EXECUTABLE(OBJDUMP)
-  fi
+  UTIL_LOOKUP_TOOLCHAIN_PROGS(OBJDUMP, gobjdump objdump)
 
   case $TOOLCHAIN_TYPE in
     gcc|clang)
-      UTIL_CHECK_TOOLS(CXXFILT, [c++filt])
-      UTIL_CHECK_NONEMPTY(CXXFILT)
-      UTIL_FIXUP_EXECUTABLE(CXXFILT)
+      UTIL_REQUIRE_TOOLCHAIN_PROGS(CXXFILT, c++filt)
       ;;
   esac
 ])
@@ -872,14 +821,18 @@ AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
           . $CONFIGURESUPPORT_OUTPUTDIR/build-devkit.info
           # This potentially sets the following:
           # A descriptive name of the devkit
-          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_NAME])
+          BASIC_EVAL_BUILD_DEVKIT_VARIABLE([BUILD_DEVKIT_NAME])
           # Corresponds to --with-extra-path
-          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_EXTRA_PATH])
+          BASIC_EVAL_BUILD_DEVKIT_VARIABLE([BUILD_DEVKIT_EXTRA_PATH])
           # Corresponds to --with-toolchain-path
-          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_TOOLCHAIN_PATH])
+          BASIC_EVAL_BUILD_DEVKIT_VARIABLE([BUILD_DEVKIT_TOOLCHAIN_PATH])
           # Corresponds to --with-sysroot
-          BASIC_EVAL_DEVKIT_VARIABLE([BUILD_DEVKIT_SYSROOT])
-          # Skip the Window specific parts
+          BASIC_EVAL_BUILD_DEVKIT_VARIABLE([BUILD_DEVKIT_SYSROOT])
+
+          if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+            BASIC_EVAL_BUILD_DEVKIT_VARIABLE([BUILD_DEVKIT_VS_INCLUDE])
+            BASIC_EVAL_BUILD_DEVKIT_VARIABLE([BUILD_DEVKIT_VS_LIB])
+          fi
         fi
 
         AC_MSG_CHECKING([for build platform devkit])
@@ -889,36 +842,76 @@ AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
           AC_MSG_RESULT([$BUILD_DEVKIT_ROOT])
         fi
 
-        BUILD_SYSROOT="$BUILD_DEVKIT_SYSROOT"
-
-         # Fallback default of just /bin if DEVKIT_PATH is not defined
+        # Fallback default of just /bin if DEVKIT_PATH is not defined
         if test "x$BUILD_DEVKIT_TOOLCHAIN_PATH" = x; then
           BUILD_DEVKIT_TOOLCHAIN_PATH="$BUILD_DEVKIT_ROOT/bin"
         fi
         PATH="$BUILD_DEVKIT_TOOLCHAIN_PATH:$BUILD_DEVKIT_EXTRA_PATH"
+
+        BUILD_SYSROOT="$BUILD_DEVKIT_SYSROOT"
+
+        if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+          # For historical reasons, paths are separated by ; in devkit.info
+          BUILD_VS_INCLUDE="${BUILD_DEVKIT_VS_INCLUDE//;/:}"
+          BUILD_VS_LIB="${BUILD_DEVKIT_VS_LIB//;/:}"
+
+          TOOLCHAIN_SETUP_VISUAL_STUDIO_SYSROOT_FLAGS(BUILD_, BUILD_)
+        fi
+      fi
+    else
+      if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+        # If we got no devkit, we need to go hunting for the proper env
+        TOOLCHAIN_FIND_VISUAL_STUDIO_BAT_FILE($OPENJDK_BUILD_CPU, [$TOOLCHAIN_VERSION])
+        TOOLCHAIN_EXTRACT_VISUAL_STUDIO_ENV($OPENJDK_BUILD_CPU, BUILD_)
+
+        # We cannot currently export the VS_PATH to spec.gmk. This is probably
+        # strictly not correct, but seems to work anyway.
+
+        # Convert VS_INCLUDE and VS_LIB into sysroot flags
+        TOOLCHAIN_SETUP_VISUAL_STUDIO_SYSROOT_FLAGS(BUILD_)
       fi
     fi
 
-    # FIXME: we should list the discovered compilers as an exclude pattern!
-    # If we do that, we can do this detection before POST_DETECTION, and still
-    # find the build compilers in the tools dir, if needed.
-    UTIL_REQUIRE_PROGS(BUILD_CC, [cl cc gcc])
-    UTIL_FIXUP_EXECUTABLE(BUILD_CC)
-    UTIL_REQUIRE_PROGS(BUILD_CXX, [cl CC g++])
-    UTIL_FIXUP_EXECUTABLE(BUILD_CXX)
-    UTIL_PATH_PROGS(BUILD_NM, nm gcc-nm)
-    UTIL_FIXUP_EXECUTABLE(BUILD_NM)
-    UTIL_PATH_PROGS(BUILD_AR, ar gcc-ar)
-    UTIL_FIXUP_EXECUTABLE(BUILD_AR)
-    UTIL_PATH_PROGS(BUILD_OBJCOPY, objcopy)
-    UTIL_FIXUP_EXECUTABLE(BUILD_OBJCOPY)
-    UTIL_PATH_PROGS(BUILD_STRIP, strip)
-    UTIL_FIXUP_EXECUTABLE(BUILD_STRIP)
-    # Assume the C compiler is the assembler
-    BUILD_AS="$BUILD_CC -c"
-    # Just like for the target compiler, use the compiler as linker
-    BUILD_LD="$BUILD_CC"
-    BUILD_LDCXX="$BUILD_CXX"
+    if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+      UTIL_REQUIRE_PROGS(BUILD_CC, cl, [$VS_PATH])
+      UTIL_REQUIRE_PROGS(BUILD_CXX, cl, [$VS_PATH])
+
+      # On windows, the assember is "ml.exe". We currently don't need this so
+      # do not require.
+      if test "x$OPENJDK_BUILD_CPU_BITS" = "x64"; then
+        # On 64 bit windows, the assember is "ml64.exe"
+        UTIL_LOOKUP_PROGS(BUILD_AS, ml64, [$VS_PATH])
+      else
+        # otherwise the assember is "ml.exe"
+        UTIL_LOOKUP_PROGS(BUILD_AS, ml, [$VS_PATH])
+      fi
+
+      # On windows, the ar tool is lib.exe (used to create static libraries).
+      # We currently don't need this so do not require.
+      UTIL_LOOKUP_PROGS(BUILD_AR, lib, [$VS_PATH])
+
+      # In the Microsoft toolchain we have a separate LD command "link".
+      UTIL_REQUIRE_PROGS(BUILD_LD, link, [$VS_PATH])
+      TOOLCHAIN_VERIFY_LINK_BINARY(BUILD_LD)
+      BUILD_LDCXX="$BUILD_LD"
+    else
+      if test "x$OPENJDK_BUILD_OS" = xmacosx; then
+        UTIL_REQUIRE_PROGS(BUILD_CC, clang cc gcc)
+        UTIL_REQUIRE_PROGS(BUILD_CXX, clang++ CC g++)
+      else
+        UTIL_REQUIRE_PROGS(BUILD_CC, cc gcc)
+        UTIL_REQUIRE_PROGS(BUILD_CXX, CC g++)
+      fi
+      UTIL_LOOKUP_PROGS(BUILD_NM, nm gcc-nm)
+      UTIL_LOOKUP_PROGS(BUILD_AR, ar gcc-ar lib)
+      UTIL_LOOKUP_PROGS(BUILD_OBJCOPY, objcopy)
+      UTIL_LOOKUP_PROGS(BUILD_STRIP, strip)
+      # Assume the C compiler is the assembler
+      BUILD_AS="$BUILD_CC -c"
+      # Just like for the target compiler, use the compiler as linker
+      BUILD_LD="$BUILD_CC"
+      BUILD_LDCXX="$BUILD_CXX"
+    fi
 
     PATH="$OLDPATH"
 
@@ -959,7 +952,7 @@ AC_DEFUN_ONCE([TOOLCHAIN_MISC_CHECKS],
   # Check for extra potential brokenness.
   if test  "x$TOOLCHAIN_TYPE" = xmicrosoft; then
     # On Windows, double-check that we got the right compiler.
-    CC_VERSION_OUTPUT=`$CC 2>&1 | $GREP -v 'ERROR.*UtilTranslatePathList' | $HEAD -n 1 | $TR -d '\r'`
+    CC_VERSION_OUTPUT=`$CC 2>&1 1>/dev/null | $HEAD -n 1 | $TR -d '\r'`
     COMPILER_CPU_TEST=`$ECHO $CC_VERSION_OUTPUT | $SED -n "s/^.* \(.*\)$/\1/p"`
     if test "x$OPENJDK_TARGET_CPU" = "xx86"; then
       if test "x$COMPILER_CPU_TEST" != "x80x86" -a "x$COMPILER_CPU_TEST" != "xx86"; then
@@ -969,6 +962,10 @@ AC_DEFUN_ONCE([TOOLCHAIN_MISC_CHECKS],
       if test "x$COMPILER_CPU_TEST" != "xx64"; then
         AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "x64".])
       fi
+    elif test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
+      if test "x$COMPILER_CPU_TEST" != "xARM64"; then
+        AC_MSG_ERROR([Target CPU mismatch. We are building for $OPENJDK_TARGET_CPU but CL is for "$COMPILER_CPU_TEST"; expected "arm64".])
+      fi
     fi
   fi
 
@@ -1051,7 +1048,7 @@ AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
     if test "x$JT_HOME" = x; then
       # JT_HOME is not set in environment, or was deemed invalid.
       # Try to find jtreg on path
-      UTIL_PATH_PROGS(JTREGEXE, jtreg)
+      UTIL_LOOKUP_PROGS(JTREGEXE, jtreg)
       if test "x$JTREGEXE" != x; then
         # That's good, now try to derive JT_HOME
         JT_HOME=`(cd $($DIRNAME $JTREGEXE)/.. && pwd)`

make/autoconf/toolchain_microsoft.m4

@@ -0,0 +1,699 @@
+#
+# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+################################################################################
+# The order of these defines the priority by which we try to find them.
+VALID_VS_VERSIONS="2019 2017"
+
+VS_DESCRIPTION_2017="Microsoft Visual Studio 2017"
+VS_VERSION_INTERNAL_2017=141
+VS_MSVCR_2017=vcruntime140.dll
+VS_MSVCP_2017=msvcp140.dll
+VS_ENVVAR_2017="VS150COMNTOOLS"
+VS_USE_UCRT_2017="true"
+VS_VS_INSTALLDIR_2017="Microsoft Visual Studio/2017"
+VS_EDITIONS_2017="BuildTools Community Professional Enterprise"
+VS_SDK_INSTALLDIR_2017=
+VS_VS_PLATFORM_NAME_2017="v141"
+VS_SDK_PLATFORM_NAME_2017=
+VS_SUPPORTED_2017=true
+VS_TOOLSET_SUPPORTED_2017=true
+
+VS_DESCRIPTION_2019="Microsoft Visual Studio 2019"
+VS_VERSION_INTERNAL_2019=142
+VS_MSVCR_2019=vcruntime140.dll
+VS_VCRUNTIME_1_2019=vcruntime140_1.dll
+VS_MSVCP_2019=msvcp140.dll
+VS_ENVVAR_2019="VS160COMNTOOLS"
+VS_USE_UCRT_2019="true"
+VS_VS_INSTALLDIR_2019="Microsoft Visual Studio/2019"
+VS_EDITIONS_2019="BuildTools Community Professional Enterprise"
+VS_SDK_INSTALLDIR_2019=
+VS_VS_PLATFORM_NAME_2019="v142"
+VS_SDK_PLATFORM_NAME_2019=
+VS_SUPPORTED_2019=true
+VS_TOOLSET_SUPPORTED_2019=true
+
+################################################################################
+
+AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT],
+[
+  if test "x$VS_ENV_CMD" = x; then
+    TARGET_CPU="$1"
+    VS_VERSION="$2"
+    VS_BASE="$3"
+    METHOD="$4"
+
+    UTIL_FIXUP_PATH(VS_BASE, NOFAIL)
+
+    if test "x$VS_BASE" != x && test -d "$VS_BASE"; then
+      # In VS 2017 and VS 2019, the default installation is in a subdir named after the edition.
+      # Find the first one present and use that.
+      if test "x$VS_EDITIONS" != x; then
+        for edition in $VS_EDITIONS; do
+          if test -d "$VS_BASE/$edition"; then
+            VS_BASE="$VS_BASE/$edition"
+            break
+          fi
+        done
+      fi
+
+      AC_MSG_NOTICE([Found Visual Studio installation at $VS_BASE using $METHOD])
+      if test "x$TARGET_CPU" = xx86; then
+        VCVARSFILES="vc/bin/vcvars32.bat vc/auxiliary/build/vcvars32.bat"
+      elif test "x$TARGET_CPU" = xx86_64; then
+        VCVARSFILES="vc/bin/amd64/vcvars64.bat vc/bin/x86_amd64/vcvarsx86_amd64.bat \
+            vc/auxiliary/build/vcvarsx86_amd64.bat vc/auxiliary/build/vcvars64.bat"
+      elif test "x$TARGET_CPU" = xaarch64; then
+        # for host x86-64, target aarch64
+        VCVARSFILES="vc/auxiliary/build/vcvarsamd64_arm64.bat \
+            vc/auxiliary/build/vcvarsx86_arm64.bat"
+      fi
+
+      for VCVARSFILE in $VCVARSFILES; do
+        if test -f "$VS_BASE/$VCVARSFILE"; then
+          VS_ENV_CMD="$VS_BASE/$VCVARSFILE"
+          break
+        fi
+      done
+
+      if test "x$VS_ENV_CMD" = x; then
+        AC_MSG_NOTICE([Warning: None of $VCVARSFILES were found, Visual Studio installation not recognized. Ignoring])
+      else
+        # PLATFORM_TOOLSET is used during the compilation of the freetype sources
+        # (see 'LIB_BUILD_FREETYPE' in libraries.m4) and must be one of 'v100',
+        # 'v110' or 'v120' for VS 2010, 2012 or VS2013
+        eval PLATFORM_TOOLSET="\${VS_VS_PLATFORM_NAME_${VS_VERSION}}"
+      fi
+    fi
+  fi
+])
+
+################################################################################
+
+AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT],
+[
+  if test "x$VS_ENV_CMD" = x; then
+    TARGET_CPU="$1"
+    VS_VERSION="$2"
+    WIN_SDK_BASE="$3"
+    METHOD="$4"
+
+    UTIL_FIXUP_PATH(WIN_SDK_BASE, NOFAIL)
+
+    if test "x$WIN_SDK_BASE" != x && test -d "$WIN_SDK_BASE"; then
+      # There have been cases of partial or broken SDK installations. A missing
+      # lib dir is not going to work.
+      if test ! -d "$WIN_SDK_BASE/lib"; then
+        AC_MSG_NOTICE([Found Windows SDK installation at $WIN_SDK_BASE using $METHOD])
+        AC_MSG_NOTICE([Warning: Installation is broken, lib dir is missing. Ignoring])
+      elif test -f "$WIN_SDK_BASE/bin/setenv.cmd"; then
+        AC_MSG_NOTICE([Found Windows SDK installation at $WIN_SDK_BASE using $METHOD])
+        VS_ENV_CMD="$WIN_SDK_BASE/bin/setenv.cmd"
+        if test "x$TARGET_CPU" = xx86; then
+          VS_ENV_ARGS="/x86"
+        elif test "x$TARGET_CPU" = xx86_64; then
+          VS_ENV_ARGS="/x64"
+        elif test "x$TARGET_CPU" = xaarch64; then
+          VS_ENV_ARGS="/arm64"
+        fi
+        # PLATFORM_TOOLSET is used during the compilation of the freetype sources (see
+        # 'LIB_BUILD_FREETYPE' in libraries.m4) and must be 'Windows7.1SDK' for Windows7.1SDK
+        # TODO: improve detection for other versions of SDK
+        eval PLATFORM_TOOLSET="\${VS_SDK_PLATFORM_NAME_${VS_VERSION}}"
+      else
+        AC_MSG_NOTICE([Found Windows SDK installation at $WIN_SDK_BASE using $METHOD])
+        AC_MSG_NOTICE([Warning: Installation is broken, SetEnv.Cmd is missing. Ignoring])
+      fi
+    fi
+  fi
+])
+
+################################################################################
+# Finds the bat or cmd file in Visual Studio or the SDK that sets up a proper
+# build environment and assigns it to VS_ENV_CMD
+AC_DEFUN([TOOLCHAIN_FIND_VISUAL_STUDIO_BAT_FILE],
+[
+  # VS2017 provides the option to install previous minor versions of the MSVC
+  # toolsets. It is not possible to directly download earlier minor versions of
+  # VS2017 and in order to build with a previous minor compiler toolset version,
+  # it is now possible to compile with earlier minor versions by passing
+  # -vcvars_ver=<toolset_version> argument to vcvarsall.bat.
+  AC_ARG_WITH(msvc-toolset-version, [AS_HELP_STRING([--with-msvc-toolset-version],
+      [specific MSVC toolset version to use, passed as -vcvars_ver argument to
+       pass to vcvarsall.bat (Windows only)])])
+
+  TARGET_CPU="$1"
+  VS_VERSION="$2"
+  eval VS_COMNTOOLS_VAR="\${VS_ENVVAR_${VS_VERSION}}"
+  eval VS_COMNTOOLS="\$${VS_COMNTOOLS_VAR}"
+  eval VS_INSTALL_DIR="\${VS_VS_INSTALLDIR_${VS_VERSION}}"
+  eval VS_EDITIONS="\${VS_EDITIONS_${VS_VERSION}}"
+  eval SDK_INSTALL_DIR="\${VS_SDK_INSTALLDIR_${VS_VERSION}}"
+  eval VS_ENV_ARGS="\${VS_ENV_ARGS_${VS_VERSION}}"
+  eval VS_TOOLSET_SUPPORTED="\${VS_TOOLSET_SUPPORTED_${VS_VERSION}}"
+
+  VS_ENV_CMD=""
+
+  # When using --with-tools-dir, assume it points to the correct and default
+  # version of Visual Studio or that --with-toolchain-version was also set.
+  if test "x$with_tools_dir" != x; then
+    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([$TARGET_CPU], [$VS_VERSION],
+        [$with_tools_dir/../..], [--with-tools-dir])
+    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([$TARGET_CPU], [$VS_VERSION],
+        [$with_tools_dir/../../..], [--with-tools-dir])
+    if test "x$VS_ENV_CMD" = x; then
+      # Having specified an argument which is incorrect will produce an instant failure;
+      # we should not go on looking
+      AC_MSG_NOTICE([The path given by --with-tools-dir does not contain a valid])
+      AC_MSG_NOTICE([Visual Studio installation. Please point to the VC/bin or VC/bin/amd64])
+      AC_MSG_NOTICE([directory within the Visual Studio installation])
+      AC_MSG_ERROR([Cannot locate a valid Visual Studio installation])
+    fi
+  fi
+
+  if test "x$VS_COMNTOOLS" != x; then
+    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([$TARGET_CPU], [$VS_VERSION],
+        [$VS_COMNTOOLS/../..], [$VS_COMNTOOLS_VAR variable])
+  fi
+  if test "x$PROGRAMFILES" != x; then
+    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([$TARGET_CPU], [$VS_VERSION],
+        [$PROGRAMFILES/$VS_INSTALL_DIR], [well-known name])
+  fi
+  # Work around the insanely named ProgramFiles(x86) env variable
+  PROGRAMFILES_X86="`env | $SED -n 's/^ProgramFiles(x86)=//p'`"
+  if test "x$PROGRAMFILES_X86" != x; then
+    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([$TARGET_CPU], [$VS_VERSION],
+        [$PROGRAMFILES_X86/$VS_INSTALL_DIR], [well-known name])
+  fi
+  TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([$TARGET_CPU], [$VS_VERSION],
+      [c:/program files/$VS_INSTALL_DIR], [well-known name])
+  TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([$TARGET_CPU], [$VS_VERSION],
+      [c:/program files (x86)/$VS_INSTALL_DIR], [well-known name])
+  if test "x$SDK_INSTALL_DIR" != x; then
+    if test "x$ProgramW6432" != x; then
+      TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([$TARGET_CPU], [$VS_VERSION],
+          [$ProgramW6432/$SDK_INSTALL_DIR], [well-known name])
+    fi
+    if test "x$PROGRAMW6432" != x; then
+      TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([$TARGET_CPU], [$VS_VERSION],
+          [$PROGRAMW6432/$SDK_INSTALL_DIR], [well-known name])
+    fi
+    if test "x$PROGRAMFILES" != x; then
+      TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([$TARGET_CPU], [$VS_VERSION],
+          [$PROGRAMFILES/$SDK_INSTALL_DIR], [well-known name])
+    fi
+    TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([$TARGET_CPU], [$VS_VERSION],
+        [c:/program files/$SDK_INSTALL_DIR], [well-known name])
+    TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([$TARGET_CPU], [$VS_VERSION],
+        [c:/program files (x86)/$SDK_INSTALL_DIR], [well-known name])
+  fi
+
+  VCVARS_VER=auto
+  if test "x$VS_TOOLSET_SUPPORTED" != x; then
+    if test "x$with_msvc_toolset_version" != x; then
+      VCVARS_VER="$with_msvc_toolset_version"
+    fi
+  fi
+])
+
+################################################################################
+
+AC_DEFUN([TOOLCHAIN_FIND_VISUAL_STUDIO],
+[
+  AC_ARG_WITH(toolchain-version, [AS_HELP_STRING([--with-toolchain-version],
+      [the version of the toolchain to look for, use '--help' to show possible values @<:@platform dependent@:>@])])
+
+  if test "x$with_toolchain_version" = xlist; then
+    # List all toolchains
+    AC_MSG_NOTICE([The following toolchain versions are valid on this platform:])
+    for version in $VALID_VS_VERSIONS; do
+      eval VS_DESCRIPTION=\${VS_DESCRIPTION_$version}
+      $PRINTF "  %-10s  %s\n" $version "$VS_DESCRIPTION"
+    done
+
+    exit 0
+  elif test "x$DEVKIT_VS_VERSION" != x; then
+    VS_VERSION=$DEVKIT_VS_VERSION
+    TOOLCHAIN_VERSION=$VS_VERSION
+    # If the devkit has a name, use that as description
+    VS_DESCRIPTION="$DEVKIT_NAME"
+    if test "x$VS_DESCRIPTION" = x; then
+      eval VS_DESCRIPTION="\${VS_DESCRIPTION_${VS_VERSION}}"
+    fi
+    eval VS_VERSION_INTERNAL="\${VS_VERSION_INTERNAL_${VS_VERSION}}"
+    eval MSVCR_NAME="\${VS_MSVCR_${VS_VERSION}}"
+    eval VCRUNTIME_1_NAME="\${VS_VCRUNTIME_1_${VS_VERSION}}"
+    eval MSVCP_NAME="\${VS_MSVCP_${VS_VERSION}}"
+    eval USE_UCRT="\${VS_USE_UCRT_${VS_VERSION}}"
+    eval VS_SUPPORTED="\${VS_SUPPORTED_${VS_VERSION}}"
+    eval PLATFORM_TOOLSET="\${VS_VS_PLATFORM_NAME_${VS_VERSION}}"
+
+    # For historical reasons, paths are separated by ; in devkit.info
+    VS_INCLUDE=${DEVKIT_VS_INCLUDE//;/:}
+    VS_LIB=${DEVKIT_VS_LIB//;/:}
+
+    AC_MSG_NOTICE([Found devkit $VS_DESCRIPTION])
+
+  elif test "x$with_toolchain_version" != x; then
+    # User override; check that it is valid
+    if test "x${VALID_VS_VERSIONS/$with_toolchain_version/}" = "x${VALID_VS_VERSIONS}"; then
+      AC_MSG_NOTICE([Visual Studio version $with_toolchain_version is not valid.])
+      AC_MSG_NOTICE([Valid Visual Studio versions: $VALID_VS_VERSIONS.])
+      AC_MSG_ERROR([Cannot continue.])
+    fi
+    VS_VERSIONS_PROBE_LIST="$with_toolchain_version"
+  else
+    # No flag given, use default
+    VS_VERSIONS_PROBE_LIST="$VALID_VS_VERSIONS"
+  fi
+
+  for VS_VERSION in $VS_VERSIONS_PROBE_LIST; do
+    TOOLCHAIN_FIND_VISUAL_STUDIO_BAT_FILE($OPENJDK_TARGET_CPU, [$VS_VERSION])
+    if test "x$VS_ENV_CMD" != x; then
+      TOOLCHAIN_VERSION=$VS_VERSION
+      eval VS_DESCRIPTION="\${VS_DESCRIPTION_${VS_VERSION}}"
+      eval VS_VERSION_INTERNAL="\${VS_VERSION_INTERNAL_${VS_VERSION}}"
+      eval MSVCR_NAME="\${VS_MSVCR_${VS_VERSION}}"
+      eval VCRUNTIME_1_NAME="\${VS_VCRUNTIME_1_${VS_VERSION}}"
+      eval MSVCP_NAME="\${VS_MSVCP_${VS_VERSION}}"
+      eval USE_UCRT="\${VS_USE_UCRT_${VS_VERSION}}"
+      eval VS_SUPPORTED="\${VS_SUPPORTED_${VS_VERSION}}"
+      # The rest of the variables are already evaled while probing
+      AC_MSG_NOTICE([Found $VS_DESCRIPTION])
+      break
+    fi
+  done
+
+  TOOLCHAIN_DESCRIPTION="$VS_DESCRIPTION"
+  if test "x$VS_SUPPORTED" = "xfalse"; then
+    UNSUPPORTED_TOOLCHAIN_VERSION=yes
+  fi
+])
+
+AC_DEFUN([TOOLCHAIN_EXTRACT_VISUAL_STUDIO_ENV],
+[
+  TARGET_CPU=$1
+
+  AC_MSG_NOTICE([Trying to extract Visual Studio environment variables for $TARGET_CPU])
+  AC_MSG_NOTICE([using $VS_ENV_CMD $VS_ENV_ARGS])
+
+  VS_ENV_TMP_DIR="$CONFIGURESUPPORT_OUTPUTDIR/vs-env-$TARGET_CPU"
+  $MKDIR -p $VS_ENV_TMP_DIR
+
+  # Cannot use the VS10 setup script directly (since it only updates the DOS subshell environment).
+  # Instead create a shell script which will set the relevant variables when run.
+
+  OLDPATH="$PATH"
+  # Make sure we only capture additions to PATH needed by VS.
+  # Clear out path, but need system dir present for vsvars cmd file to be able to run
+  export PATH=$WINENV_PREFIX/c/windows/system32
+  # The "| cat" is to stop SetEnv.Cmd to mess with system colors on some systems
+  # We can't pass -vcvars_ver=$VCVARS_VER here because cmd.exe eats all '='
+  # in bat file arguments. :-(
+  $FIXPATH $CMD /c "$TOPDIR/make/scripts/extract-vs-env.cmd" "$VS_ENV_CMD" \
+      "$VS_ENV_TMP_DIR/set-vs-env.sh" $VCVARS_VER $VS_ENV_ARGS \
+      > $VS_ENV_TMP_DIR/extract-vs-env.log | $CAT 2>&1
+  PATH="$OLDPATH"
+
+  if test ! -s $VS_ENV_TMP_DIR/set-vs-env.sh; then
+    AC_MSG_NOTICE([Could not succesfully extract the environment variables needed for the VS setup.])
+    AC_MSG_NOTICE([Try setting --with-tools-dir to the VC/bin directory within the VS installation.])
+    AC_MSG_NOTICE([To analyze the problem, see extract-vs-env.log and extract-vs-env.bat in])
+    AC_MSG_NOTICE([$VS_ENV_TMP_DIR.])
+    AC_MSG_ERROR([Cannot continue])
+  fi
+
+  # Remove windows line endings
+  $SED -i -e 's|\r||g' $VS_ENV_TMP_DIR/set-vs-env.sh
+
+  # Now set all paths and other env variables by executing the generated
+  # shell script. This will allow the rest of the configure script to find
+  # and run the compiler in the proper way.
+  AC_MSG_NOTICE([Setting extracted environment variables for $TARGET_CPU])
+  . $VS_ENV_TMP_DIR/set-vs-env.sh
+
+  # Extract only what VS_ENV_CMD added to the PATH
+  VS_PATH=${PATH_AFTER/"$PATH_BEFORE"}
+  VS_PATH=${VS_PATH//::/:}
+
+  # Remove any paths containing # (typically F#) as that messes up make. This
+  # is needed if visual studio was installed with F# support.
+  [ VS_PATH=`$ECHO "$VS_PATH" | $SED 's/[^:#]*#[^:]*://g'` ]
+
+  # Sometimes case is off
+  if test -z "$WINDOWSSDKDIR"; then
+    WINDOWSSDKDIR="$WindowsSdkDir"
+  fi
+  # Now we have VS_PATH, VS_INCLUDE, VS_LIB. For further checking, we
+  # also define VCINSTALLDIR and WINDOWSSDKDIR. All are in
+  # unix style.
+])
+
+################################################################################
+# Check if the VS env variables were setup prior to running configure.
+# If not, then find vcvarsall.bat and run it automatically, and integrate
+# the set env variables into the spec file.
+AC_DEFUN([TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV],
+[
+  # Locate the vsvars bat file and save it as VS_ENV_CMD
+  TOOLCHAIN_FIND_VISUAL_STUDIO
+
+  # If we have a devkit, we don't need to run VS_ENV_CMD
+  if test "x$DEVKIT_VS_VERSION" = x; then
+    if test "x$VS_ENV_CMD" != x; then
+      # We have found a Visual Studio environment on disk, let's extract variables
+      # from the vsvars bat file into shell variables in the configure script.
+      TOOLCHAIN_EXTRACT_VISUAL_STUDIO_ENV($OPENJDK_TARGET_CPU)
+
+      # Now we have VS_PATH, VS_INCLUDE, VS_LIB. For further checking, we
+      # also define VCINSTALLDIR and WINDOWSSDKDIR. All are in
+      # unix style.
+    else
+      # We did not find a vsvars bat file.
+      AC_MSG_ERROR([Cannot locate a valid Visual Studio installation])
+    fi
+  fi
+
+  # At this point, we should have correct variables in the environment
+  AC_MSG_CHECKING([that Visual Studio variables have been correctly extracted])
+
+  if test "x$VCINSTALLDIR" != x || test "x$WINDOWSSDKDIR" != x \
+      || test "x$DEVKIT_NAME" != x; then
+    if test "x$VS_INCLUDE" = x || test "x$VS_LIB" = x; then
+      AC_MSG_RESULT([no; Visual Studio present but broken])
+      AC_MSG_ERROR([Your VC command prompt seems broken, INCLUDE and/or LIB is missing.])
+    else
+      AC_MSG_RESULT([ok])
+
+      # Turn VS_PATH into TOOLCHAIN_PATH
+      TOOLCHAIN_PATH="$TOOLCHAIN_PATH:$VS_PATH"
+
+      # Convert VS_INCLUDE and VS_LIB into sysroot flags
+      TOOLCHAIN_SETUP_VISUAL_STUDIO_SYSROOT_FLAGS
+    fi
+  else
+    AC_MSG_RESULT([not found])
+
+    if test "x$VS_ENV_CMD" = x; then
+      AC_MSG_NOTICE([Cannot locate a valid Visual Studio or Windows SDK installation on disk])
+    else
+      AC_MSG_NOTICE([Running the extraction script failed])
+    fi
+    AC_MSG_NOTICE([Try setting --with-tools-dir to the VC/bin directory within the VS installation.])
+    AC_MSG_NOTICE([To analyze the problem, see extract-vs-env.log and extract-vs-env.bat in])
+    AC_MSG_NOTICE([$VS_ENV_TMP_DIR.])
+    AC_MSG_ERROR([Cannot continue])
+  fi
+])
+
+AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL],
+[
+  DLL_NAME="$1"
+  POSSIBLE_MSVC_DLL="$2"
+  METHOD="$3"
+  if test -n "$POSSIBLE_MSVC_DLL" -a -e "$POSSIBLE_MSVC_DLL"; then
+    AC_MSG_NOTICE([Found $DLL_NAME at $POSSIBLE_MSVC_DLL using $METHOD])
+
+    # Need to check if the found msvcr is correct architecture
+    AC_MSG_CHECKING([found $DLL_NAME architecture])
+    MSVC_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVC_DLL"`
+    if test "x$OPENJDK_TARGET_CPU" = xx86; then
+      CORRECT_MSVCR_ARCH=386
+    elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
+      CORRECT_MSVCR_ARCH=x86-64
+    elif test "x$OPENJDK_TARGET_CPU" = xaarch64; then
+      # The cygwin 'file' command only returns "PE32+ executable (DLL) (console), for MS Windows",
+      # without specifying which architecture it is for specifically. This has been fixed upstream.
+      # https://github.com/file/file/commit/b849b1af098ddd530094bf779b58431395db2e10#diff-ff2eced09e6860de75057dd731d092aeR142
+      CORRECT_MSVCR_ARCH="PE32+ executable"
+    fi
+    if $ECHO "$MSVC_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
+      AC_MSG_RESULT([ok])
+      MSVC_DLL="$POSSIBLE_MSVC_DLL"
+      AC_MSG_CHECKING([for $DLL_NAME])
+      AC_MSG_RESULT([$MSVC_DLL])
+    else
+      AC_MSG_RESULT([incorrect, ignoring])
+      AC_MSG_NOTICE([The file type of the located $DLL_NAME is $MSVC_DLL_FILETYPE])
+    fi
+  fi
+])
+
+AC_DEFUN([TOOLCHAIN_SETUP_MSVC_DLL],
+[
+  DLL_NAME="$1"
+  MSVC_DLL=
+
+  if test "x$OPENJDK_TARGET_CPU" = xx86; then
+    vs_target_cpu=x86
+  elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
+    vs_target_cpu=x64
+  elif test "x$OPENJDK_TARGET_CPU" = xaarch64; then
+    vs_target_cpu=arm64
+  fi
+
+  if test "x$MSVC_DLL" = x; then
+    if test "x$VCINSTALLDIR" != x; then
+      if test "$VS_VERSION" -lt 2017; then
+        # Probe: Using well-known location from Visual Studio 12.0 and older
+        POSSIBLE_MSVC_DLL="$VCINSTALLDIR/redist/$vs_target_cpu/microsoft.vc${VS_VERSION_INTERNAL}.crt/$DLL_NAME"
+      else
+        # Probe: Using well-known location from VS 2017 and VS 2019
+        POSSIBLE_MSVC_DLL="`ls $VCToolsRedistDir/$vs_target_cpu/microsoft.vc${VS_VERSION_INTERNAL}.crt/$DLL_NAME 2> /dev/null`"
+      fi
+      # In case any of the above finds more than one file, loop over them.
+      for possible_msvc_dll in $POSSIBLE_MSVC_DLL; do
+        TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$possible_msvc_dll],
+            [well-known location in VCINSTALLDIR])
+      done
+    fi
+  fi
+
+  if test "x$MSVC_DLL" = x; then
+    # Probe: Check in the Boot JDK directory.
+    POSSIBLE_MSVC_DLL="$BOOT_JDK/bin/$DLL_NAME"
+    TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
+        [well-known location in Boot JDK])
+  fi
+
+  if test "x$MSVC_DLL" = x; then
+    # Probe: Look in the Windows system32 directory
+    WIN_SYSTEMROOT="$SYSTEMROOT"
+    UTIL_FIXUP_PATH(WIN_SYSTEMROOT, NOFAIL)
+    if test "x$WIN_SYSTEMROOT" != x; then
+      POSSIBLE_MSVC_DLL="$WIN_SYSTEMROOT/system32/$DLL_NAME"
+      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
+          [well-known location in SYSTEMROOT])
+    fi
+  fi
+
+  if test "x$MSVC_DLL" = x; then
+    # Probe: If Visual Studio Express is installed, there is usually one with the debugger
+    if test "x$VS100COMNTOOLS" != x; then
+      WIN_VS_TOOLS_DIR="$VS100COMNTOOLS/.."
+      UTIL_FIXUP_PATH(WIN_VS_TOOLS_DIR, NOFAIL)
+      if test "x$WIN_VS_TOOLS_DIR" != x; then
+        POSSIBLE_MSVC_DLL=`$FIND "$WIN_VS_TOOLS_DIR" -name $DLL_NAME \
+        | $GREP -i /$vs_target_cpu/ | $HEAD --lines 1`
+        TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
+            [search of VS100COMNTOOLS])
+      fi
+    fi
+  fi
+
+  if test "x$MSVC_DLL" = x; then
+    # Probe: Search wildly in the VCINSTALLDIR. We've probably lost by now.
+    # (This was the original behaviour; kept since it might turn something up)
+    if test "x$VCINSTALLDIR" != x; then
+      if test "x$OPENJDK_TARGET_CPU" = xx86; then
+        POSSIBLE_MSVC_DLL=`$FIND "$VCINSTALLDIR" -name $DLL_NAME \
+        | $GREP x86 | $GREP -v ia64 | $GREP -v x64 | $GREP -v arm64 | $HEAD --lines 1`
+        if test "x$POSSIBLE_MSVC_DLL" = x; then
+          # We're grasping at straws now...
+          POSSIBLE_MSVC_DLL=`$FIND "$VCINSTALLDIR" -name $DLL_NAME \
+          | $HEAD --lines 1`
+        fi
+      else
+        POSSIBLE_MSVC_DLL=`$FIND "$VCINSTALLDIR" -name $DLL_NAME \
+        | $GREP x64 | $HEAD --lines 1`
+      fi
+
+      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
+          [search of VCINSTALLDIR])
+    fi
+  fi
+
+  if test "x$MSVC_DLL" = x; then
+    AC_MSG_CHECKING([for $DLL_NAME])
+    AC_MSG_RESULT([no])
+    AC_MSG_ERROR([Could not find $DLL_NAME. Please specify using --with-msvcr-dll.])
+  fi
+])
+
+AC_DEFUN([TOOLCHAIN_SETUP_VS_RUNTIME_DLLS],
+[
+  AC_ARG_WITH(msvcr-dll, [AS_HELP_STRING([--with-msvcr-dll],
+      [path to microsoft C runtime dll (msvcr*.dll) (Windows only) @<:@probed@:>@])])
+
+  if test "x$with_msvcr_dll" != x; then
+    # If given explicitly by user, do not probe. If not present, fail directly.
+    TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCR_NAME, [$with_msvcr_dll], [--with-msvcr-dll])
+    if test "x$MSVC_DLL" = x; then
+      AC_MSG_ERROR([Could not find a proper $MSVCR_NAME as specified by --with-msvcr-dll])
+    fi
+    MSVCR_DLL="$MSVC_DLL"
+  elif test "x$DEVKIT_MSVCR_DLL" != x; then
+    TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCR_NAME, [$DEVKIT_MSVCR_DLL], [devkit])
+    if test "x$MSVC_DLL" = x; then
+      AC_MSG_ERROR([Could not find a proper $MSVCR_NAME as specified by devkit])
+    fi
+    MSVCR_DLL="$MSVC_DLL"
+  else
+    TOOLCHAIN_SETUP_MSVC_DLL([${MSVCR_NAME}])
+    MSVCR_DLL="$MSVC_DLL"
+  fi
+  AC_SUBST(MSVCR_DLL)
+
+  AC_ARG_WITH(msvcp-dll, [AS_HELP_STRING([--with-msvcp-dll],
+      [path to microsoft C++ runtime dll (msvcp*.dll) (Windows only) @<:@probed@:>@])])
+
+  if test "x$MSVCP_NAME" != "x"; then
+    if test "x$with_msvcp_dll" != x; then
+      # If given explicitly by user, do not probe. If not present, fail directly.
+      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCP_NAME, [$with_msvcp_dll], [--with-msvcp-dll])
+      if test "x$MSVC_DLL" = x; then
+        AC_MSG_ERROR([Could not find a proper $MSVCP_NAME as specified by --with-msvcp-dll])
+      fi
+      MSVCP_DLL="$MSVC_DLL"
+    elif test "x$DEVKIT_MSVCP_DLL" != x; then
+      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCP_NAME, [$DEVKIT_MSVCP_DLL], [devkit])
+      if test "x$MSVC_DLL" = x; then
+        AC_MSG_ERROR([Could not find a proper $MSVCP_NAME as specified by devkit])
+      fi
+      MSVCP_DLL="$MSVC_DLL"
+    else
+      TOOLCHAIN_SETUP_MSVC_DLL([${MSVCP_NAME}])
+      MSVCP_DLL="$MSVC_DLL"
+    fi
+    AC_SUBST(MSVCP_DLL)
+  fi
+
+  AC_ARG_WITH(vcruntime-1-dll, [AS_HELP_STRING([--with-vcruntime-1-dll],
+      [path to microsoft C++ runtime dll (vcruntime*_1.dll) (Windows x64 only) @<:@probed@:>@])])
+
+  if test "x$VCRUNTIME_1_NAME" != "x" && test "x$OPENJDK_TARGET_CPU" = xx86_64; then
+    if test "x$with_vcruntime_1_dll" != x; then
+      # If given explicitly by user, do not probe. If not present, fail directly.
+      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($VCRUNTIME_1_NAME, [$with_vcruntime_1_dll],
+          [--with-vcruntime-1-dll])
+      if test "x$MSVC_DLL" = x; then
+        AC_MSG_ERROR([Could not find a proper $VCRUNTIME_1_NAME as specified by --with-vcruntime-1-dll])
+      fi
+      VCRUNTIME_1_DLL="$MSVC_DLL"
+    elif test "x$DEVKIT_VCRUNTIME_1_DLL" != x; then
+      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($VCRUNTIME_1_NAME, [$DEVKIT_VCRUNTIME_1_DLL], [devkit])
+      if test "x$MSVC_DLL" = x; then
+        AC_MSG_ERROR([Could not find a proper $VCRUNTIME_1_NAME as specified by devkit])
+      fi
+      VCRUNTIME_1_DLL="$MSVC_DLL"
+    else
+      TOOLCHAIN_SETUP_MSVC_DLL([${VCRUNTIME_1_NAME}])
+      VCRUNTIME_1_DLL="$MSVC_DLL"
+    fi
+  fi
+  AC_SUBST(VCRUNTIME_1_DLL)
+
+  AC_ARG_WITH(ucrt-dll-dir, [AS_HELP_STRING([--with-ucrt-dll-dir],
+      [path to Microsoft Windows Kit UCRT DLL dir (Windows only) @<:@probed@:>@])])
+
+  if test "x$USE_UCRT" = "xtrue" && test "x$OPENJDK_TARGET_CPU" != xaarch64; then
+    AC_MSG_CHECKING([for UCRT DLL dir])
+    if test "x$with_ucrt_dll_dir" != x; then
+      if test -z "$(ls -d "$with_ucrt_dll_dir/"*.dll 2> /dev/null)"; then
+        AC_MSG_RESULT([no])
+        AC_MSG_ERROR([Could not find any dlls in $with_ucrt_dll_dir])
+      else
+        AC_MSG_RESULT([$with_ucrt_dll_dir])
+        UCRT_DLL_DIR="$with_ucrt_dll_dir"
+        UTIL_FIXUP_PATH([UCRT_DLL_DIR])
+      fi
+    elif test "x$DEVKIT_UCRT_DLL_DIR" != "x"; then
+      UCRT_DLL_DIR="$DEVKIT_UCRT_DLL_DIR"
+      AC_MSG_RESULT($UCRT_DLL_DIR)
+    else
+      dll_subdir=$OPENJDK_TARGET_CPU
+      if test "x$dll_subdir" = "xaarch64"; then
+        dll_subdir="arm64"
+      elif test "x$dll_subdir" = "xx86_64"; then
+        dll_subdir="x64"
+      fi
+      UCRT_DLL_DIR="$WINDOWSSDKDIR/redist/ucrt/dlls/$dll_subdir"
+      if test -z "$(ls -d "$UCRT_DLL_DIR/"*.dll 2> /dev/null)"; then
+        # Try with version subdir
+        UCRT_DLL_DIR="`ls -d $WINDOWSSDKDIR/redist/*/ucrt/dlls/$dll_subdir \
+            2> /dev/null | $SORT -d | $HEAD -n1`"
+        if test -z "$UCRT_DLL_DIR" \
+            || test -z "$(ls -d "$UCRT_DLL_DIR/"*.dll 2> /dev/null)"; then
+          AC_MSG_RESULT([no])
+          AC_MSG_ERROR([Could not find any dlls in $UCRT_DLL_DIR])
+        else
+          AC_MSG_RESULT($UCRT_DLL_DIR)
+        fi
+      else
+        AC_MSG_RESULT($UCRT_DLL_DIR)
+      fi
+    fi
+  else
+    UCRT_DLL_DIR=
+  fi
+  AC_SUBST(UCRT_DLL_DIR)
+])
+
+# Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so
+# that configure can use them while detecting compilers.
+# TOOLCHAIN_TYPE is available here.
+# Param 1 - Optional prefix to SYSROOT variables. (e.g BUILD_)
+# Param 2 - Optional prefix to VS variables. (e.g BUILD_)
+AC_DEFUN([TOOLCHAIN_SETUP_VISUAL_STUDIO_SYSROOT_FLAGS],
+[
+  OLDIFS="$IFS"
+  IFS=":"
+
+  # Convert VS_INCLUDE into SYSROOT_CFLAGS
+  for ipath in [$]$2VS_INCLUDE; do
+    $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -I$ipath"
+  done
+
+  # Convert VS_LIB into SYSROOT_LDFLAGS
+  for libpath in [$]$2VS_LIB; do
+    $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -libpath:$libpath"
+  done
+
+  IFS="$OLDIFS"
+
+  AC_SUBST($1SYSROOT_CFLAGS)
+  AC_SUBST($1SYSROOT_LDFLAGS)
+])

make/autoconf/toolchain_windows.m4

@@ -1,876 +0,0 @@
-#
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
-# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-#
-# This code is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.  Oracle designates this
-# particular file as subject to the "Classpath" exception as provided
-# by Oracle in the LICENSE file that accompanied this code.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-################################################################################
-# The order of these defines the priority by which we try to find them.
-VALID_VS_VERSIONS="2019 2017 2013 2015 2012 2010"
-
-VS_DESCRIPTION_2010="Microsoft Visual Studio 2010"
-VS_VERSION_INTERNAL_2010=100
-VS_MSVCR_2010=msvcr100.dll
-# We don't use msvcp on Visual Studio 2010
-#VS_MSVCP_2010=msvcp100.dll
-VS_ENVVAR_2010="VS100COMNTOOLS"
-VS_VS_INSTALLDIR_2010="Microsoft Visual Studio 10.0"
-VS_SDK_INSTALLDIR_2010="Microsoft SDKs/Windows/v7.1"
-VS_VS_PLATFORM_NAME_2010="v100"
-VS_SDK_PLATFORM_NAME_2010="Windows7.1SDK"
-VS_SUPPORTED_2010=false
-
-VS_DESCRIPTION_2012="Microsoft Visual Studio 2012"
-VS_VERSION_INTERNAL_2012=110
-VS_MSVCR_2012=msvcr110.dll
-VS_MSVCP_2012=msvcp110.dll
-VS_ENVVAR_2012="VS110COMNTOOLS"
-VS_VS_INSTALLDIR_2012="Microsoft Visual Studio 11.0"
-VS_SDK_INSTALLDIR_2012=
-VS_VS_PLATFORM_NAME_2012="v110"
-VS_SDK_PLATFORM_NAME_2012=
-VS_SUPPORTED_2012=false
-
-VS_DESCRIPTION_2013="Microsoft Visual Studio 2013"
-VS_VERSION_INTERNAL_2013=120
-VS_MSVCR_2013=msvcr120.dll
-VS_MSVCP_2013=msvcp120.dll
-VS_ENVVAR_2013="VS120COMNTOOLS"
-VS_VS_INSTALLDIR_2013="Microsoft Visual Studio 12.0"
-VS_SDK_INSTALLDIR_2013=
-VS_VS_PLATFORM_NAME_2013="v120"
-VS_SDK_PLATFORM_NAME_2013=
-VS_SUPPORTED_2013=false
-
-VS_DESCRIPTION_2015="Microsoft Visual Studio 2015"
-VS_VERSION_INTERNAL_2015=140
-VS_MSVCR_2015=vcruntime140.dll
-VS_MSVCP_2015=msvcp140.dll
-VS_ENVVAR_2015="VS140COMNTOOLS"
-VS_VS_INSTALLDIR_2015="Microsoft Visual Studio 14.0"
-VS_SDK_INSTALLDIR_2015=
-VS_VS_PLATFORM_NAME_2015="v140"
-VS_SDK_PLATFORM_NAME_2015=
-# The vcvars of 2015 breaks if 2017 is also installed. Work around this by
-# explicitly specifying Windows Kit 8.1 to be used.
-VS_ENV_ARGS_2015="8.1"
-VS_SUPPORTED_2015=false
-
-VS_DESCRIPTION_2017="Microsoft Visual Studio 2017"
-VS_VERSION_INTERNAL_2017=141
-VS_MSVCR_2017=vcruntime140.dll
-VS_MSVCP_2017=msvcp140.dll
-VS_ENVVAR_2017="VS150COMNTOOLS"
-VS_USE_UCRT_2017="true"
-VS_VS_INSTALLDIR_2017="Microsoft Visual Studio/2017"
-VS_EDITIONS_2017="BuildTools Community Professional Enterprise"
-VS_SDK_INSTALLDIR_2017=
-VS_VS_PLATFORM_NAME_2017="v141"
-VS_SDK_PLATFORM_NAME_2017=
-VS_SUPPORTED_2017=true
-VS_TOOLSET_SUPPORTED_2017=true
-
-VS_DESCRIPTION_2019="Microsoft Visual Studio 2019"
-VS_VERSION_INTERNAL_2019=142
-VS_MSVCR_2019=vcruntime140.dll
-VS_VCRUNTIME_1_2019=vcruntime140_1.dll
-VS_MSVCP_2019=msvcp140.dll
-VS_ENVVAR_2019="VS160COMNTOOLS"
-VS_USE_UCRT_2019="true"
-VS_VS_INSTALLDIR_2019="Microsoft Visual Studio/2019"
-VS_EDITIONS_2019="BuildTools Community Professional Enterprise"
-VS_SDK_INSTALLDIR_2019=
-VS_VS_PLATFORM_NAME_2019="v142"
-VS_SDK_PLATFORM_NAME_2019=
-VS_SUPPORTED_2019=true
-VS_TOOLSET_SUPPORTED_2019=true
-
-################################################################################
-
-AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT],
-[
-  if test "x$VS_ENV_CMD" = x; then
-    VS_VERSION="$1"
-    VS_BASE="$2"
-    METHOD="$3"
-
-    UTIL_REWRITE_AS_UNIX_PATH(VS_BASE)
-    # In VS 2017 and VS 2019, the default installation is in a subdir named after the edition.
-    # Find the first one present and use that.
-    if test "x$VS_EDITIONS" != x; then
-      for edition in $VS_EDITIONS; do
-        if test -d "$VS_BASE/$edition"; then
-          VS_BASE="$VS_BASE/$edition"
-          break
-        fi
-      done
-    fi
-
-    if test -d "$VS_BASE"; then
-      AC_MSG_NOTICE([Found Visual Studio installation at $VS_BASE using $METHOD])
-      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-        VCVARSFILES="vc/bin/vcvars32.bat vc/auxiliary/build/vcvars32.bat"
-      else
-        VCVARSFILES="vc/bin/amd64/vcvars64.bat vc/bin/x86_amd64/vcvarsx86_amd64.bat \
-            VC/Auxiliary/Build/vcvarsx86_amd64.bat VC/Auxiliary/Build/vcvars64.bat"
-      fi
-
-      for VCVARSFILE in $VCVARSFILES; do
-        if test -f "$VS_BASE/$VCVARSFILE"; then
-          VS_ENV_CMD="$VS_BASE/$VCVARSFILE"
-          break
-        fi
-      done
-
-      if test "x$VS_ENV_CMD" = x; then
-        AC_MSG_NOTICE([Warning: None of $VCVARSFILES were found, Visual Studio installation not recognized. Ignoring])
-      else
-        # PLATFORM_TOOLSET is used during the compilation of the freetype sources
-        # (see 'LIB_BUILD_FREETYPE' in libraries.m4) and must be one of 'v100',
-        # 'v110' or 'v120' for VS 2010, 2012 or VS2013
-        eval PLATFORM_TOOLSET="\${VS_VS_PLATFORM_NAME_${VS_VERSION}}"
-      fi
-    fi
-  fi
-])
-
-################################################################################
-
-AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT],
-[
-  if test "x$VS_ENV_CMD" = x; then
-    VS_VERSION="$1"
-    WIN_SDK_BASE="$2"
-    METHOD="$3"
-    UTIL_REWRITE_AS_UNIX_PATH(WIN_SDK_BASE)
-    if test -d "$WIN_SDK_BASE"; then
-      # There have been cases of partial or broken SDK installations. A missing
-      # lib dir is not going to work.
-      if test ! -d "$WIN_SDK_BASE/lib"; then
-        AC_MSG_NOTICE([Found Windows SDK installation at $WIN_SDK_BASE using $METHOD])
-        AC_MSG_NOTICE([Warning: Installation is broken, lib dir is missing. Ignoring])
-      elif test -f "$WIN_SDK_BASE/Bin/SetEnv.Cmd"; then
-        AC_MSG_NOTICE([Found Windows SDK installation at $WIN_SDK_BASE using $METHOD])
-        VS_ENV_CMD="$WIN_SDK_BASE/Bin/SetEnv.Cmd"
-        if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-          VS_ENV_ARGS="/x86"
-        else
-          VS_ENV_ARGS="/x64"
-        fi
-        # PLATFORM_TOOLSET is used during the compilation of the freetype sources (see
-        # 'LIB_BUILD_FREETYPE' in libraries.m4) and must be 'Windows7.1SDK' for Windows7.1SDK
-        # TODO: improve detection for other versions of SDK
-        eval PLATFORM_TOOLSET="\${VS_SDK_PLATFORM_NAME_${VS_VERSION}}"
-      else
-        AC_MSG_NOTICE([Found Windows SDK installation at $WIN_SDK_BASE using $METHOD])
-        AC_MSG_NOTICE([Warning: Installation is broken, SetEnv.Cmd is missing. Ignoring])
-      fi
-    fi
-  fi
-])
-
-################################################################################
-# Finds the bat or cmd file in Visual Studio or the SDK that sets up a proper
-# build environment and assigns it to VS_ENV_CMD
-AC_DEFUN([TOOLCHAIN_FIND_VISUAL_STUDIO_BAT_FILE],
-[
-  # VS2017 provides the option to install previous minor versions of the MSVC
-  # toolsets. It is not possible to directly download earlier minor versions of
-  # VS2017 and in order to build with a previous minor compiler toolset version,
-  # it is now possible to compile with earlier minor versions by passing
-  # -vcvars_ver=<toolset_version> argument to vcvarsall.bat.
-  AC_ARG_WITH(msvc-toolset-version, [AS_HELP_STRING([--with-msvc-toolset-version],
-      [specific MSVC toolset version to use, passed as -vcvars_ver argument to
-       pass to vcvarsall.bat (Windows only)])])
-
-  VS_VERSION="$1"
-  eval VS_COMNTOOLS_VAR="\${VS_ENVVAR_${VS_VERSION}}"
-  eval VS_COMNTOOLS="\$${VS_COMNTOOLS_VAR}"
-  eval VS_INSTALL_DIR="\${VS_VS_INSTALLDIR_${VS_VERSION}}"
-  eval VS_EDITIONS="\${VS_EDITIONS_${VS_VERSION}}"
-  eval SDK_INSTALL_DIR="\${VS_SDK_INSTALLDIR_${VS_VERSION}}"
-  eval VS_ENV_ARGS="\${VS_ENV_ARGS_${VS_VERSION}}"
-  eval VS_TOOLSET_SUPPORTED="\${VS_TOOLSET_SUPPORTED_${VS_VERSION}}"
-
-  VS_ENV_CMD=""
-
-  # When using --with-tools-dir, assume it points to the correct and default
-  # version of Visual Studio or that --with-toolchain-version was also set.
-  if test "x$with_tools_dir" != x; then
-    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([${VS_VERSION}],
-        [$with_tools_dir/../..], [--with-tools-dir])
-    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([${VS_VERSION}],
-        [$with_tools_dir/../../..], [--with-tools-dir])
-    if test "x$VS_ENV_CMD" = x; then
-      # Having specified an argument which is incorrect will produce an instant failure;
-      # we should not go on looking
-      AC_MSG_NOTICE([The path given by --with-tools-dir does not contain a valid])
-      AC_MSG_NOTICE([Visual Studio installation. Please point to the VC/bin or VC/bin/amd64])
-      AC_MSG_NOTICE([directory within the Visual Studio installation])
-      AC_MSG_ERROR([Cannot locate a valid Visual Studio installation])
-    fi
-  fi
-
-  if test "x$VS_COMNTOOLS" != x; then
-    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([${VS_VERSION}],
-        [$VS_COMNTOOLS/../..], [$VS_COMNTOOLS_VAR variable])
-  fi
-  if test "x$PROGRAMFILES" != x; then
-    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([${VS_VERSION}],
-        [$PROGRAMFILES/$VS_INSTALL_DIR], [well-known name])
-  fi
-  # Work around the insanely named ProgramFiles(x86) env variable
-  PROGRAMFILES_X86="`env | $SED -n 's/^ProgramFiles(x86)=//p'`"
-  if test "x$PROGRAMFILES_X86" != x; then
-    TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([${VS_VERSION}],
-        [$PROGRAMFILES_X86/$VS_INSTALL_DIR], [well-known name])
-  fi
-  TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([${VS_VERSION}],
-      [C:/Program Files/$VS_INSTALL_DIR], [well-known name])
-  TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT([${VS_VERSION}],
-      [C:/Program Files (x86)/$VS_INSTALL_DIR], [well-known name])
-  if test "x$SDK_INSTALL_DIR" != x; then
-    if test "x$ProgramW6432" != x; then
-      TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([${VS_VERSION}],
-          [$ProgramW6432/$SDK_INSTALL_DIR], [well-known name])
-    fi
-    if test "x$PROGRAMW6432" != x; then
-      TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([${VS_VERSION}],
-          [$PROGRAMW6432/$SDK_INSTALL_DIR], [well-known name])
-    fi
-    if test "x$PROGRAMFILES" != x; then
-      TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([${VS_VERSION}],
-          [$PROGRAMFILES/$SDK_INSTALL_DIR], [well-known name])
-    fi
-    TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([${VS_VERSION}],
-        [C:/Program Files/$SDK_INSTALL_DIR], [well-known name])
-    TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT([${VS_VERSION}],
-        [C:/Program Files (x86)/$SDK_INSTALL_DIR], [well-known name])
-  fi
-
-  if test "x$VS_TOOLSET_SUPPORTED" != x; then
-    if test "x$with_msvc_toolset_version" != x; then
-      VS_ENV_ARGS="$VS_ENV_ARGS -vcvars_ver=$with_msvc_toolset_version"
-    fi
-  fi
-])
-
-################################################################################
-
-AC_DEFUN([TOOLCHAIN_FIND_VISUAL_STUDIO],
-[
-  AC_ARG_WITH(toolchain-version, [AS_HELP_STRING([--with-toolchain-version],
-      [the version of the toolchain to look for, use '--help' to show possible values @<:@platform dependent@:>@])])
-
-  if test "x$with_toolchain_version" = xlist; then
-    # List all toolchains
-    AC_MSG_NOTICE([The following toolchain versions are valid on this platform:])
-    for version in $VALID_VS_VERSIONS; do
-      eval VS_DESCRIPTION=\${VS_DESCRIPTION_$version}
-      $PRINTF "  %-10s  %s\n" $version "$VS_DESCRIPTION"
-    done
-
-    exit 0
-  elif test "x$DEVKIT_VS_VERSION" != x; then
-    VS_VERSION=$DEVKIT_VS_VERSION
-    TOOLCHAIN_VERSION=$VS_VERSION
-    # If the devkit has a name, use that as description
-    VS_DESCRIPTION="$DEVKIT_NAME"
-    if test "x$VS_DESCRIPTION" = x; then
-      eval VS_DESCRIPTION="\${VS_DESCRIPTION_${VS_VERSION}}"
-    fi
-    eval VS_VERSION_INTERNAL="\${VS_VERSION_INTERNAL_${VS_VERSION}}"
-    eval MSVCR_NAME="\${VS_MSVCR_${VS_VERSION}}"
-    eval VCRUNTIME_1_NAME="\${VS_VCRUNTIME_1_${VS_VERSION}}"
-    eval MSVCP_NAME="\${VS_MSVCP_${VS_VERSION}}"
-    eval USE_UCRT="\${VS_USE_UCRT_${VS_VERSION}}"
-    eval VS_SUPPORTED="\${VS_SUPPORTED_${VS_VERSION}}"
-    eval PLATFORM_TOOLSET="\${VS_VS_PLATFORM_NAME_${VS_VERSION}}"
-
-    # The TOOLCHAIN_PATH from a devkit is in Unix format. In WSL we need a
-    # windows version of the complete VS_PATH as VS_PATH_WINDOWS
-    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-      # Convert the toolchain path
-      OLDIFS="$IFS"
-      IFS=":"
-      VS_PATH_WINDOWS=""
-      for i in $TOOLCHAIN_PATH; do
-        path=$i
-        UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([path])
-        VS_PATH_WINDOWS="$VS_PATH_WINDOWS;$path"
-      done
-      IFS="$OLDIFS"
-      # Append the current path from Windows env
-      WINDOWS_PATH="`$CMD /c echo %PATH%`"
-      VS_PATH_WINDOWS="$VS_PATH_WINDOWS;$WINDOWS_PATH"
-    else
-      VS_PATH="$TOOLCHAIN_PATH:$PATH"
-    fi
-
-    # Convert DEVKIT_VS_INCLUDE into windows style VS_INCLUDE so that it
-    # can still be exported as INCLUDE for compiler invocations without
-    # SYSROOT_CFLAGS
-    OLDIFS="$IFS"
-    IFS=";"
-    for i in $DEVKIT_VS_INCLUDE; do
-      ipath=$i
-      UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([ipath])
-      VS_INCLUDE="$VS_INCLUDE;$ipath"
-    done
-    # Convert DEVKIT_VS_LIB into VS_LIB so that it can still be exported
-    # as LIB for compiler invocations without SYSROOT_LDFLAGS
-    for i in $DEVKIT_VS_LIB; do
-      libpath=$i
-      UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([libpath])
-      VS_LIB="$VS_LIB;$libpath"
-    done
-    IFS="$OLDIFS"
-
-    AC_MSG_NOTICE([Found devkit $VS_DESCRIPTION])
-
-  elif test "x$with_toolchain_version" != x; then
-    # User override; check that it is valid
-    if test "x${VALID_VS_VERSIONS/$with_toolchain_version/}" = "x${VALID_VS_VERSIONS}"; then
-      AC_MSG_NOTICE([Visual Studio version $with_toolchain_version is not valid.])
-      AC_MSG_NOTICE([Valid Visual Studio versions: $VALID_VS_VERSIONS.])
-      AC_MSG_ERROR([Cannot continue.])
-    fi
-    VS_VERSIONS_PROBE_LIST="$with_toolchain_version"
-  else
-    # No flag given, use default
-    VS_VERSIONS_PROBE_LIST="$VALID_VS_VERSIONS"
-  fi
-
-  for VS_VERSION in $VS_VERSIONS_PROBE_LIST; do
-    TOOLCHAIN_FIND_VISUAL_STUDIO_BAT_FILE([$VS_VERSION])
-    if test "x$VS_ENV_CMD" != x; then
-      TOOLCHAIN_VERSION=$VS_VERSION
-      eval VS_DESCRIPTION="\${VS_DESCRIPTION_${VS_VERSION}}"
-      eval VS_VERSION_INTERNAL="\${VS_VERSION_INTERNAL_${VS_VERSION}}"
-      eval MSVCR_NAME="\${VS_MSVCR_${VS_VERSION}}"
-      eval VCRUNTIME_1_NAME="\${VS_VCRUNTIME_1_${VS_VERSION}}"
-      eval MSVCP_NAME="\${VS_MSVCP_${VS_VERSION}}"
-      eval USE_UCRT="\${VS_USE_UCRT_${VS_VERSION}}"
-      eval VS_SUPPORTED="\${VS_SUPPORTED_${VS_VERSION}}"
-      # The rest of the variables are already evaled while probing
-      AC_MSG_NOTICE([Found $VS_DESCRIPTION])
-      break
-    fi
-  done
-
-  TOOLCHAIN_DESCRIPTION="$VS_DESCRIPTION"
-  if test "x$VS_SUPPORTED" = "xfalse"; then
-    UNSUPPORTED_TOOLCHAIN_VERSION=yes
-  fi
-])
-
-################################################################################
-# Check if the VS env variables were setup prior to running configure.
-# If not, then find vcvarsall.bat and run it automatically, and integrate
-# the set env variables into the spec file.
-AC_DEFUN([TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV],
-[
-  # Store path to cygwin link.exe to help excluding it when searching for
-  # VS linker. This must be done before changing the PATH when looking for VS.
-  AC_PATH_PROG(CYGWIN_LINK, link.exe)
-  if test "x$CYGWIN_LINK" != x; then
-    AC_MSG_CHECKING([if the first found link.exe is actually the Cygwin link tool])
-    "$CYGWIN_LINK" --version > /dev/null
-    if test $? -eq 0 ; then
-      AC_MSG_RESULT([yes])
-    else
-      AC_MSG_RESULT([no])
-      # This might be the VS linker. Don't exclude it later on.
-      CYGWIN_LINK=""
-    fi
-  fi
-
-  # First-hand choice is to locate and run the vsvars bat file.
-  TOOLCHAIN_FIND_VISUAL_STUDIO
-
-  # If we have a devkit, skip all of the below.
-  if test "x$DEVKIT_VS_VERSION" = x; then
-    if test "x$VS_ENV_CMD" != x; then
-      # We have found a Visual Studio environment on disk, let's extract variables from the vsvars bat file.
-      UTIL_FIXUP_EXECUTABLE(VS_ENV_CMD)
-
-      # Lets extract the variables that are set by vcvarsall.bat/vsvars32.bat/vsvars64.bat
-      AC_MSG_NOTICE([Trying to extract Visual Studio environment variables])
-
-      # We need to create a couple of temporary files.
-      VS_ENV_TMP_DIR="$CONFIGURESUPPORT_OUTPUTDIR/vs-env"
-      $MKDIR -p $VS_ENV_TMP_DIR
-
-      # Cannot use the VS10 setup script directly (since it only updates the DOS subshell environment).
-      # Instead create a shell script which will set the relevant variables when run.
-      WINPATH_VS_ENV_CMD="$VS_ENV_CMD"
-      UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([WINPATH_VS_ENV_CMD])
-
-      if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-        WINPATH_BASH="bash"
-      else
-        WINPATH_BASH="$BASH"
-        UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([WINPATH_BASH])
-      fi
-
-      # Generate a DOS batch file which runs $VS_ENV_CMD, and then creates a shell
-      # script (executable by bash) that will setup the important variables.
-      EXTRACT_VC_ENV_BAT_FILE="$VS_ENV_TMP_DIR/extract-vs-env.bat"
-      $ECHO "@echo off" >  $EXTRACT_VC_ENV_BAT_FILE
-      # This will end up something like:
-      # call C:/progra~2/micros~2.0/vc/bin/amd64/vcvars64.bat
-      $ECHO "call \"$WINPATH_VS_ENV_CMD\" $VS_ENV_ARGS" >> $EXTRACT_VC_ENV_BAT_FILE
-      # In some cases, the VS_ENV_CMD will change directory, change back so
-      # the set-vs-env.sh ends up in the right place.
-      $ECHO 'cd %~dp0' >> $EXTRACT_VC_ENV_BAT_FILE
-      if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-        # These will end up something like:
-        # echo VS_PATH=\"$PATH\" > set-vs-env.sh
-        # The trailing space for everyone except PATH is no typo, but is needed due
-        # to trailing \ in the Windows paths. These will be stripped later.
-        # Trying pure CMD extract. This results in windows paths that need to
-        # be converted post extraction, but a simpler script.
-        $ECHO 'echo VS_PATH="%PATH%" > set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO 'echo VS_INCLUDE="%INCLUDE% " >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO 'echo VS_LIB="%LIB% " >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO 'echo VCINSTALLDIR="%VCINSTALLDIR% " >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO 'echo VCToolsRedistDir="%VCToolsRedistDir% " >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO 'echo WindowsSdkDir="%WindowsSdkDir% " >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO 'echo WINDOWSSDKDIR="%WINDOWSSDKDIR% " >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-      else
-        # These will end up something like:
-        # C:/CygWin/bin/bash -c 'echo VS_PATH=\"$PATH\" > localdevenv.sh
-        # The trailing space for everyone except PATH is no typo, but is needed due
-        # to trailing \ in the Windows paths. These will be stripped later.
-        $ECHO "$WINPATH_BASH -c 'echo VS_PATH="'\"$PATH\" > set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO "$WINPATH_BASH -c 'echo VS_INCLUDE="'\"$INCLUDE\;$include \" >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO "$WINPATH_BASH -c 'echo VS_LIB="'\"$LIB\;$lib \" >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO "$WINPATH_BASH -c 'echo VCINSTALLDIR="'\"$VCINSTALLDIR \" >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO "$WINPATH_BASH -c 'echo VCToolsRedistDir="'\"$VCToolsRedistDir \" >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO "$WINPATH_BASH -c 'echo WindowsSdkDir="'\"$WindowsSdkDir \" >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-        $ECHO "$WINPATH_BASH -c 'echo WINDOWSSDKDIR="'\"$WINDOWSSDKDIR \" >> set-vs-env.sh' \
-            >> $EXTRACT_VC_ENV_BAT_FILE
-      fi
-
-      # Now execute the newly created bat file.
-      # Change directory so we don't need to mess with Windows paths in redirects.
-      cd $VS_ENV_TMP_DIR
-      $CMD /c extract-vs-env.bat > extract-vs-env.log 2>&1
-      cd $CONFIGURE_START_DIR
-
-      if test ! -s $VS_ENV_TMP_DIR/set-vs-env.sh; then
-        AC_MSG_NOTICE([Could not succesfully extract the environment variables needed for the VS setup.])
-        AC_MSG_NOTICE([Try setting --with-tools-dir to the VC/bin directory within the VS installation])
-        AC_MSG_NOTICE([or run "bash.exe -l" from a VS command prompt and then run configure from there.])
-        AC_MSG_ERROR([Cannot continue])
-      fi
-
-      # Remove windows line endings
-      $SED -i -e 's|\r||g' $VS_ENV_TMP_DIR/set-vs-env.sh
-
-      # Now set all paths and other env variables. This will allow the rest of
-      # the configure script to find and run the compiler in the proper way.
-      AC_MSG_NOTICE([Setting extracted environment variables])
-      . $VS_ENV_TMP_DIR/set-vs-env.sh
-      # Now we have VS_PATH, VS_INCLUDE, VS_LIB. For further checking, we
-      # also define VCINSTALLDIR, WindowsSdkDir and WINDOWSSDKDIR.
-
-      # In WSL, the extracted VS_PATH is Windows style. This needs to be
-      # rewritten as Unix style and the Windows style version is saved
-      # in VS_PATH_WINDOWS.
-      if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-        OLDIFS="$IFS"
-        IFS=";"
-        # Convert VS_PATH to unix style
-        VS_PATH_WINDOWS="$VS_PATH"
-        VS_PATH=""
-        for i in $VS_PATH_WINDOWS; do
-          path=$i
-          # Only process non-empty elements
-          if test "x$path" != x; then
-            IFS="$OLDIFS"
-            # Check that directory exists before calling fixup_path
-            testpath=$path
-            UTIL_REWRITE_AS_UNIX_PATH([testpath])
-            if test -d "$testpath"; then
-              UTIL_FIXUP_PATH([path])
-              UTIL_APPEND_TO_PATH(VS_PATH, $path)
-            fi
-            IFS=";"
-          fi
-        done
-        IFS="$OLDIFS"
-      fi
-
-    else
-      # We did not find a vsvars bat file, let's hope we are run from a VS command prompt.
-      AC_MSG_NOTICE([Cannot locate a valid Visual Studio installation, checking current environment])
-    fi
-  fi
-
-  # At this point, we should have correct variables in the environment, or we can't continue.
-  AC_MSG_CHECKING([for Visual Studio variables])
-
-  if test "x$VCINSTALLDIR" != x || test "x$WindowsSDKDir" != x \
-      || test "x$WINDOWSSDKDIR" != x || test "x$DEVKIT_NAME" != x; then
-    if test "x$VS_INCLUDE" = x || test "x$VS_LIB" = x; then
-      AC_MSG_RESULT([present but broken])
-      AC_MSG_ERROR([Your VC command prompt seems broken, INCLUDE and/or LIB is missing.])
-    else
-      AC_MSG_RESULT([ok])
-      # Remove any trailing "\" ";" and " " from the variables.
-      VS_INCLUDE=`$ECHO "$VS_INCLUDE" | $SED -e 's/\\\\*;* *$//'`
-      VS_LIB=`$ECHO "$VS_LIB" | $SED 's/\\\\*;* *$//'`
-      VCINSTALLDIR=`$ECHO "$VCINSTALLDIR" | $SED 's/\\\\* *$//'`
-      VCToolsRedistDir=`$ECHO "$VCToolsRedistDir" | $SED 's/\\\\* *$//'`
-      WindowsSdkDir=`$ECHO "$WindowsSdkDir" | $SED 's/\\\\* *$//'`
-      WINDOWSSDKDIR=`$ECHO "$WINDOWSSDKDIR" | $SED 's/\\\\* *$//'`
-      if test -z "$WINDOWSSDKDIR"; then
-        WINDOWSSDKDIR="$WindowsSdkDir"
-      fi
-      # Remove any paths containing # (typically F#) as that messes up make. This
-      # is needed if visual studio was installed with F# support.
-      VS_PATH=`$ECHO "$VS_PATH" | $SED 's/[[^:#]]*#[^:]*://g'`
-
-      AC_SUBST(VS_PATH)
-      AC_SUBST(VS_INCLUDE)
-      AC_SUBST(VS_LIB)
-
-      # Convert VS_INCLUDE into SYSROOT_CFLAGS
-      OLDIFS="$IFS"
-      IFS=";"
-      for i in $VS_INCLUDE; do
-        ipath=$i
-        # Only process non-empty elements
-        if test "x$ipath" != x; then
-          IFS="$OLDIFS"
-          # Check that directory exists before calling fixup_path
-          testpath=$ipath
-          UTIL_REWRITE_AS_UNIX_PATH([testpath])
-          if test -d "$testpath"; then
-            UTIL_FIXUP_PATH([ipath])
-            SYSROOT_CFLAGS="$SYSROOT_CFLAGS -I$ipath"
-          fi
-          IFS=";"
-        fi
-      done
-      # Convert VS_LIB into SYSROOT_LDFLAGS
-      for i in $VS_LIB; do
-        libpath=$i
-        # Only process non-empty elements
-        if test "x$libpath" != x; then
-          IFS="$OLDIFS"
-          # Check that directory exists before calling fixup_path
-          testpath=$libpath
-          UTIL_REWRITE_AS_UNIX_PATH([testpath])
-          if test -d "$testpath"; then
-            UTIL_FIXUP_PATH([libpath])
-            SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS -libpath:$libpath"
-          fi
-          IFS=";"
-        fi
-      done
-      IFS="$OLDIFS"
-
-      AC_SUBST(VS_PATH_WINDOWS)
-    fi
-  else
-    AC_MSG_RESULT([not found])
-
-    if test "x$VS_ENV_CMD" = x; then
-      AC_MSG_NOTICE([Cannot locate a valid Visual Studio or Windows SDK installation on disk,])
-      AC_MSG_NOTICE([nor is this script run from a Visual Studio command prompt.])
-    else
-      AC_MSG_NOTICE([Running the extraction script failed.])
-    fi
-    AC_MSG_NOTICE([Try setting --with-tools-dir to the VC/bin directory within the VS installation])
-    AC_MSG_NOTICE([or run "bash.exe -l" from a VS command prompt and then run configure from there.])
-    AC_MSG_ERROR([Cannot continue])
-  fi
-])
-
-AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL],
-[
-  DLL_NAME="$1"
-  POSSIBLE_MSVC_DLL="$2"
-  METHOD="$3"
-  if test -n "$POSSIBLE_MSVC_DLL" -a -e "$POSSIBLE_MSVC_DLL"; then
-    AC_MSG_NOTICE([Found $DLL_NAME at $POSSIBLE_MSVC_DLL using $METHOD])
-
-    # Need to check if the found msvcr is correct architecture
-    AC_MSG_CHECKING([found $DLL_NAME architecture])
-    MSVC_DLL_FILETYPE=`$FILE -b "$POSSIBLE_MSVC_DLL"`
-    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-      # The MSYS 'file' command returns "PE32 executable for MS Windows (DLL) (GUI) Intel 80386 32-bit"
-      # on x32 and "PE32+ executable for MS Windows (DLL) (GUI) Mono/.Net assembly" on x64 systems.
-      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-        CORRECT_MSVCR_ARCH="PE32 executable"
-      else
-        CORRECT_MSVCR_ARCH="PE32+ executable"
-      fi
-    else
-      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
-        CORRECT_MSVCR_ARCH=386
-      else
-        CORRECT_MSVCR_ARCH=x86-64
-      fi
-    fi
-    if $ECHO "$MSVC_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
-      AC_MSG_RESULT([ok])
-      MSVC_DLL="$POSSIBLE_MSVC_DLL"
-      AC_MSG_CHECKING([for $DLL_NAME])
-      AC_MSG_RESULT([$MSVC_DLL])
-    else
-      AC_MSG_RESULT([incorrect, ignoring])
-      AC_MSG_NOTICE([The file type of the located $DLL_NAME is $MSVC_DLL_FILETYPE])
-    fi
-  fi
-])
-
-AC_DEFUN([TOOLCHAIN_SETUP_MSVC_DLL],
-[
-  DLL_NAME="$1"
-  MSVC_DLL=
-
-  if test "x$MSVC_DLL" = x; then
-    if test "x$VCINSTALLDIR" != x; then
-      CYGWIN_VC_INSTALL_DIR="$VCINSTALLDIR"
-      UTIL_FIXUP_PATH(CYGWIN_VC_INSTALL_DIR)
-      if test "$VS_VERSION" -lt 2017; then
-        # Probe: Using well-known location from Visual Studio 12.0 and older
-        if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
-          POSSIBLE_MSVC_DLL="$CYGWIN_VC_INSTALL_DIR/redist/x64/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME"
-        else
-          POSSIBLE_MSVC_DLL="$CYGWIN_VC_INSTALL_DIR/redist/x86/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME"
-        fi
-      else
-        CYGWIN_VC_TOOLS_REDIST_DIR="$VCToolsRedistDir"
-        UTIL_FIXUP_PATH(CYGWIN_VC_TOOLS_REDIST_DIR)
-        # Probe: Using well-known location from VS 2017 and VS 2019
-        if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
-          POSSIBLE_MSVC_DLL="`ls $CYGWIN_VC_TOOLS_REDIST_DIR/x64/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME`"
-        else
-          POSSIBLE_MSVC_DLL="`ls $CYGWIN_VC_TOOLS_REDIST_DIR/x86/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME`"
-        fi
-      fi
-      # In case any of the above finds more than one file, loop over them.
-      for possible_msvc_dll in $POSSIBLE_MSVC_DLL; do
-        $ECHO "POSSIBLE_MSVC_DLL $possible_msvc_dll"
-        TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$possible_msvc_dll],
-            [well-known location in VCINSTALLDIR])
-      done
-    fi
-  fi
-
-  if test "x$MSVC_DLL" = x; then
-    # Probe: Check in the Boot JDK directory.
-    POSSIBLE_MSVC_DLL="$BOOT_JDK/bin/$DLL_NAME"
-    TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
-        [well-known location in Boot JDK])
-  fi
-
-  if test "x$MSVC_DLL" = x; then
-    # Probe: Look in the Windows system32 directory
-    CYGWIN_SYSTEMROOT="$SYSTEMROOT"
-    UTIL_REWRITE_AS_UNIX_PATH(CYGWIN_SYSTEMROOT)
-    POSSIBLE_MSVC_DLL="$CYGWIN_SYSTEMROOT/system32/$DLL_NAME"
-    TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
-        [well-known location in SYSTEMROOT])
-  fi
-
-  if test "x$MSVC_DLL" = x; then
-    # Probe: If Visual Studio Express is installed, there is usually one with the debugger
-    if test "x$VS100COMNTOOLS" != x; then
-      CYGWIN_VS_TOOLS_DIR="$VS100COMNTOOLS/.."
-      UTIL_REWRITE_AS_UNIX_PATH(CYGWIN_VS_TOOLS_DIR)
-      if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
-        POSSIBLE_MSVC_DLL=`$FIND "$CYGWIN_VS_TOOLS_DIR" -name $DLL_NAME \
-        | $GREP -i /x64/ | $HEAD --lines 1`
-      else
-        POSSIBLE_MSVC_DLL=`$FIND "$CYGWIN_VS_TOOLS_DIR" -name $DLL_NAME \
-        | $GREP -i /x86/ | $HEAD --lines 1`
-      fi
-      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
-          [search of VS100COMNTOOLS])
-    fi
-  fi
-
-  if test "x$MSVC_DLL" = x; then
-    # Probe: Search wildly in the VCINSTALLDIR. We've probably lost by now.
-    # (This was the original behaviour; kept since it might turn something up)
-    if test "x$CYGWIN_VC_INSTALL_DIR" != x; then
-      if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
-        POSSIBLE_MSVC_DLL=`$FIND "$CYGWIN_VC_INSTALL_DIR" -name $DLL_NAME \
-        | $GREP x64 | $HEAD --lines 1`
-      else
-        POSSIBLE_MSVC_DLL=`$FIND "$CYGWIN_VC_INSTALL_DIR" -name $DLL_NAME \
-        | $GREP x86 | $GREP -v ia64 | $GREP -v x64 | $HEAD --lines 1`
-        if test "x$POSSIBLE_MSVC_DLL" = x; then
-          # We're grasping at straws now...
-          POSSIBLE_MSVC_DLL=`$FIND "$CYGWIN_VC_INSTALL_DIR" -name $DLL_NAME \
-          | $HEAD --lines 1`
-        fi
-      fi
-
-      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
-          [search of VCINSTALLDIR])
-    fi
-  fi
-
-  if test "x$MSVC_DLL" = x; then
-    AC_MSG_CHECKING([for $DLL_NAME])
-    AC_MSG_RESULT([no])
-    AC_MSG_ERROR([Could not find $DLL_NAME. Please specify using --with-msvcr-dll.])
-  fi
-])
-
-AC_DEFUN([TOOLCHAIN_SETUP_VS_RUNTIME_DLLS],
-[
-  AC_ARG_WITH(msvcr-dll, [AS_HELP_STRING([--with-msvcr-dll],
-      [path to microsoft C runtime dll (msvcr*.dll) (Windows only) @<:@probed@:>@])])
-
-  if test "x$with_msvcr_dll" != x; then
-    # If given explicitly by user, do not probe. If not present, fail directly.
-    TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCR_NAME, [$with_msvcr_dll], [--with-msvcr-dll])
-    if test "x$MSVC_DLL" = x; then
-      AC_MSG_ERROR([Could not find a proper $MSVCR_NAME as specified by --with-msvcr-dll])
-    fi
-    MSVCR_DLL="$MSVC_DLL"
-  elif test "x$DEVKIT_MSVCR_DLL" != x; then
-    TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCR_NAME, [$DEVKIT_MSVCR_DLL], [devkit])
-    if test "x$MSVC_DLL" = x; then
-      AC_MSG_ERROR([Could not find a proper $MSVCR_NAME as specified by devkit])
-    fi
-    MSVCR_DLL="$MSVC_DLL"
-  else
-    TOOLCHAIN_SETUP_MSVC_DLL([${MSVCR_NAME}])
-    MSVCR_DLL="$MSVC_DLL"
-  fi
-  AC_SUBST(MSVCR_DLL)
-
-  AC_ARG_WITH(msvcp-dll, [AS_HELP_STRING([--with-msvcp-dll],
-      [path to microsoft C++ runtime dll (msvcp*.dll) (Windows only) @<:@probed@:>@])])
-
-  if test "x$MSVCP_NAME" != "x"; then
-    if test "x$with_msvcp_dll" != x; then
-      # If given explicitly by user, do not probe. If not present, fail directly.
-      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCP_NAME, [$with_msvcp_dll], [--with-msvcp-dll])
-      if test "x$MSVC_DLL" = x; then
-        AC_MSG_ERROR([Could not find a proper $MSVCP_NAME as specified by --with-msvcp-dll])
-      fi
-      MSVCP_DLL="$MSVC_DLL"
-    elif test "x$DEVKIT_MSVCP_DLL" != x; then
-      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($MSVCP_NAME, [$DEVKIT_MSVCP_DLL], [devkit])
-      if test "x$MSVC_DLL" = x; then
-        AC_MSG_ERROR([Could not find a proper $MSVCP_NAME as specified by devkit])
-      fi
-      MSVCP_DLL="$MSVC_DLL"
-    else
-      TOOLCHAIN_SETUP_MSVC_DLL([${MSVCP_NAME}])
-      MSVCP_DLL="$MSVC_DLL"
-    fi
-    AC_SUBST(MSVCP_DLL)
-  fi
-
-  AC_ARG_WITH(vcruntime-1-dll, [AS_HELP_STRING([--with-vcruntime-1-dll],
-      [path to microsoft C++ runtime dll (vcruntime*_1.dll) (Windows only) @<:@probed@:>@])])
-
-  if test "x$VCRUNTIME_1_NAME" != "x"; then
-    if test "x$with_vcruntime_1_dll" != x; then
-      # If given explicitly by user, do not probe. If not present, fail directly.
-      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($VCRUNTIME_1_NAME, [$with_vcruntime_1_dll],
-          [--with-vcruntime-1-dll])
-      if test "x$MSVC_DLL" = x; then
-        AC_MSG_ERROR([Could not find a proper $VCRUNTIME_1_NAME as specified by --with-vcruntime-1-dll])
-      fi
-      VCRUNTIME_1_DLL="$MSVC_DLL"
-    elif test "x$DEVKIT_VCRUNTIME_1_DLL" != x; then
-      TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL($VCRUNTIME_1_NAME, [$DEVKIT_VCRUNTIME_1_DLL], [devkit])
-      if test "x$MSVC_DLL" = x; then
-        AC_MSG_ERROR([Could not find a proper $VCRUNTIME_1_NAME as specified by devkit])
-      fi
-      VCRUNTIME_1_DLL="$MSVC_DLL"
-    else
-      TOOLCHAIN_SETUP_MSVC_DLL([${VCRUNTIME_1_NAME}])
-      VCRUNTIME_1_DLL="$MSVC_DLL"
-    fi
-    AC_SUBST(VCRUNTIME_1_DLL)
-  fi
-
-  AC_ARG_WITH(ucrt-dll-dir, [AS_HELP_STRING([--with-ucrt-dll-dir],
-      [path to Microsoft Windows Kit UCRT DLL dir (Windows only) @<:@probed@:>@])])
-
-  if test "x$USE_UCRT" = "xtrue"; then
-    AC_MSG_CHECKING([for UCRT DLL dir])
-    if test "x$with_ucrt_dll_dir" != x; then
-      if test -z "$(ls -d "$with_ucrt_dll_dir/"*.dll 2> /dev/null)"; then
-        AC_MSG_RESULT([no])
-        AC_MSG_ERROR([Could not find any dlls in $with_ucrt_dll_dir])
-      else
-        AC_MSG_RESULT([$with_ucrt_dll_dir])
-        UCRT_DLL_DIR="$with_ucrt_dll_dir"
-        UTIL_FIXUP_PATH([UCRT_DLL_DIR])
-      fi
-    elif test "x$DEVKIT_UCRT_DLL_DIR" != "x"; then
-      UCRT_DLL_DIR="$DEVKIT_UCRT_DLL_DIR"
-      AC_MSG_RESULT($UCRT_DLL_DIR)
-    else
-      CYGWIN_WINDOWSSDKDIR="${WINDOWSSDKDIR}"
-      UTIL_FIXUP_PATH([CYGWIN_WINDOWSSDKDIR])
-      dll_subdir=$OPENJDK_TARGET_CPU
-      if test "x$dll_subdir" = "xx86_64"; then
-        dll_subdir="x64"
-      fi
-      UCRT_DLL_DIR="$CYGWIN_WINDOWSSDKDIR/Redist/ucrt/DLLs/$dll_subdir"
-      if test -z "$(ls -d "$UCRT_DLL_DIR/"*.dll 2> /dev/null)"; then
-        # Try with version subdir
-        UCRT_DLL_DIR="`ls -d $CYGWIN_WINDOWSSDKDIR/Redist/*/ucrt/DLLs/$dll_subdir \
-            2> /dev/null | $SORT -d | $HEAD -n1`"
-        if test -z "$UCRT_DLL_DIR" \
-            || test -z "$(ls -d "$UCRT_DLL_DIR/"*.dll 2> /dev/null)"; then
-          AC_MSG_RESULT([no])
-          AC_MSG_ERROR([Could not find any dlls in $UCRT_DLL_DIR])
-        else
-          AC_MSG_RESULT($UCRT_DLL_DIR)
-        fi
-      else
-        AC_MSG_RESULT($UCRT_DLL_DIR)
-      fi
-    fi
-  else
-    UCRT_DLL_DIR=
-  fi
-  AC_SUBST(UCRT_DLL_DIR)
-])

make/autoconf/util.m4

@@ -24,7 +24,6 @@
 #
 
 m4_include([util_paths.m4])
-m4_include([util_windows.m4])
 
 ###############################################################################
 # Create a function/macro that takes a series of named arguments. The call is
@@ -462,151 +461,3 @@ UTIL_DEFUN_NAMED([UTIL_ARG_ENABLE],
   fi
 ])
 
-###############################################################################
-# Test that variable $1 denoting a program is not empty. If empty, exit with an error.
-# $1: variable to check
-AC_DEFUN([UTIL_CHECK_NONEMPTY],
-[
-  if test "x[$]$1" = x; then
-    AC_MSG_ERROR([Could not find required tool for $1])
-  fi
-])
-
-###############################################################################
-# Setup a tool for the given variable. If correctly specified by the user,
-# use that value, otherwise search for the tool using the supplied code snippet.
-# $1: variable to set
-# $2: code snippet to call to look for the tool
-# $3: code snippet to call if variable was used to find tool
-AC_DEFUN([UTIL_SETUP_TOOL],
-[
-  # Publish this variable in the help.
-  AC_ARG_VAR($1, [Override default value for $1])
-
-  if [[ -z "${$1+x}" ]]; then
-    # The variable is not set by user, try to locate tool using the code snippet
-    $2
-  else
-    # The variable is set, but is it from the command line or the environment?
-
-    # Try to remove the string !$1! from our list.
-    try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!$1!/}
-    if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
-      # If it failed, the variable was not from the command line. Ignore it,
-      # but warn the user (except for BASH, which is always set by the calling BASH).
-      if test "x$1" != xBASH; then
-        AC_MSG_WARN([Ignoring value of $1 from the environment. Use command line variables instead.])
-      fi
-      # Try to locate tool using the code snippet
-      $2
-    else
-      # If it succeeded, then it was overridden by the user. We will use it
-      # for the tool.
-
-      # First remove it from the list of overridden variables, so we can test
-      # for unknown variables in the end.
-      CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
-
-      tool_override=[$]$1
-      AC_MSG_NOTICE([User supplied override $1="$tool_override"])
-
-      # Check if we try to supply an empty value
-      if test "x$tool_override" = x; then
-        AC_MSG_CHECKING([for $1])
-        AC_MSG_RESULT([disabled])
-      else
-        # Split up override in command part and argument part
-        tool_and_args=($tool_override)
-        [ tool_command=${tool_and_args[0]} ]
-        [ unset 'tool_and_args[0]' ]
-        [ tool_args=${tool_and_args[@]} ]
-
-        # Check if the provided tool contains a complete path.
-        tool_basename="${tool_command##*/}"
-        if test "x$tool_basename" = "x$tool_command"; then
-          # A command without a complete path is provided, search $PATH.
-          AC_MSG_NOTICE([Will search for user supplied tool "$tool_basename"])
-          AC_PATH_PROG($1, $tool_basename)
-          if test "x[$]$1" = x; then
-            AC_MSG_ERROR([User supplied tool $1="$tool_basename" could not be found])
-          fi
-        else
-          # Otherwise we believe it is a complete path. Use it as it is.
-          AC_MSG_NOTICE([Will use user supplied tool "$tool_command"])
-          AC_MSG_CHECKING([for $tool_command])
-          if test ! -x "$tool_command" && test ! -x "$tool_command.exe"; then
-            AC_MSG_RESULT([not found])
-            AC_MSG_ERROR([User supplied tool $1="$tool_command" does not exist or is not executable])
-          fi
-           $1="$tool_command"
-          AC_MSG_RESULT([found])
-        fi
-        if test "x$tool_args" != x; then
-          # If we got arguments, re-append them to the command after the fixup.
-          $1="[$]$1 $tool_args"
-        fi
-      fi
-    fi
-    $3
-  fi
-])
-
-###############################################################################
-# Call UTIL_SETUP_TOOL with AC_PATH_PROGS to locate the tool
-# $1: variable to set
-# $2: executable name (or list of names) to look for
-# $3: [path]
-AC_DEFUN([UTIL_PATH_PROGS],
-[
-  UTIL_SETUP_TOOL($1, [AC_PATH_PROGS($1, $2, , $3)])
-])
-
-###############################################################################
-# Call UTIL_SETUP_TOOL with AC_CHECK_TOOLS to locate the tool
-# $1: variable to set
-# $2: executable name (or list of names) to look for
-AC_DEFUN([UTIL_CHECK_TOOLS],
-[
-  UTIL_SETUP_TOOL($1, [AC_CHECK_TOOLS($1, $2)])
-])
-
-###############################################################################
-# Like UTIL_PATH_PROGS but fails if no tool was found.
-# $1: variable to set
-# $2: executable name (or list of names) to look for
-# $3: [path]
-AC_DEFUN([UTIL_REQUIRE_PROGS],
-[
-  UTIL_PATH_PROGS($1, $2, , $3)
-  UTIL_CHECK_NONEMPTY($1)
-])
-
-###############################################################################
-# Like UTIL_SETUP_TOOL but fails if no tool was found.
-# $1: variable to set
-# $2: autoconf macro to call to look for the special tool
-AC_DEFUN([UTIL_REQUIRE_SPECIAL],
-[
-  UTIL_SETUP_TOOL($1, [$2])
-  UTIL_CHECK_NONEMPTY($1)
-])
-
-###############################################################################
-# Like UTIL_REQUIRE_PROGS but also allows for bash built-ins
-# $1: variable to set
-# $2: executable name (or list of names) to look for
-# $3: [path]
-AC_DEFUN([UTIL_REQUIRE_BUILTIN_PROGS],
-[
-  UTIL_SETUP_TOOL($1, [AC_PATH_PROGS($1, $2, , $3)])
-  if test "x[$]$1" = x; then
-    AC_MSG_NOTICE([Required tool $2 not found in PATH, checking built-in])
-    if command -v $2 > /dev/null 2>&1; then
-      AC_MSG_NOTICE([Found $2 as shell built-in. Using it])
-      $1="$2"
-    else
-      AC_MSG_ERROR([Required tool $2 also not found as built-in.])
-    fi
-  fi
-  UTIL_CHECK_NONEMPTY($1)
-])

make/autoconf/util_paths.m4

@@ -23,6 +23,7 @@
 # questions.
 #
 
+###############################################################################
 # Appends a string to a path variable, only adding the : when needed.
 AC_DEFUN([UTIL_APPEND_TO_PATH],
 [
@@ -35,6 +36,7 @@ AC_DEFUN([UTIL_APPEND_TO_PATH],
   fi
 ])
 
+###############################################################################
 # Prepends a string to a path variable, only adding the : when needed.
 AC_DEFUN([UTIL_PREPEND_TO_PATH],
 [
@@ -47,34 +49,6 @@ AC_DEFUN([UTIL_PREPEND_TO_PATH],
   fi
 ])
 
-################################################################################
-# This will make a path absolute. Assumes it's already a unix path. Also
-# resolves ~ to homedir.
-AC_DEFUN([UTIL_ABSOLUTE_PATH],
-[
-  if test "x[$]$1" != x; then
-    new_path="[$]$1"
-
-    # Use eval to expand a potential ~. This technique does not work if there
-    # are spaces in the path (which is valid at this point on Windows), so only
-    # try to apply it if there is an actual ~ first in the path.
-    if [ [[ "$new_path" = "~"* ]] ]; then
-      eval new_path="$new_path"
-      if test ! -f "$new_path" && test ! -d "$new_path"; then
-        AC_MSG_ERROR([The new_path of $1, which resolves as "$new_path", is not found.])
-      fi
-    fi
-
-    if test -d "$new_path"; then
-      $1="`cd "$new_path"; $THEPWDCMD -L`"
-    else
-      dir="`$DIRNAME "$new_path"`"
-      base="`$BASENAME "$new_path"`"
-      $1="`cd "$dir"; $THEPWDCMD -L`/$base"
-    fi
-  fi
-])
-
 ###############################################################################
 # This will make sure the given variable points to a full and proper
 # path. This means:
@@ -84,31 +58,100 @@ AC_DEFUN([UTIL_ABSOLUTE_PATH],
 # 2) The path will be absolute, and it will be in unix-style (on
 #     cygwin).
 # $1: The name of the variable to fix
+# $2: if NOFAIL, errors will be silently ignored
 AC_DEFUN([UTIL_FIXUP_PATH],
 [
   # Only process if variable expands to non-empty
-  if test "x[$]$1" != x; then
-    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
-      UTIL_FIXUP_PATH_CYGWIN($1)
-    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-      UTIL_FIXUP_PATH_MSYS($1)
-    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-      UTIL_FIXUP_PATH_WSL($1)
+  path="[$]$1"
+  if test "x$path" != x; then
+    if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
+      if test "x$2" = "xNOFAIL"; then
+        quiet_option="-q"
+      fi
+      imported_path=`$FIXPATH_BASE $quiet_option import "$path"`
+      $FIXPATH_BASE verify "$imported_path"
+      if test $? -ne 0; then
+        if test "x$2" != "xNOFAIL"; then
+          AC_MSG_ERROR([The path of $1, which resolves as "$path", could not be imported.])
+        else
+          imported_path=""
+        fi
+      fi
+      if test "x$imported_path" != "x$path"; then
+        $1="$imported_path"
+      fi
     else
-      # We're on a unix platform. Hooray! :)
-      path="[$]$1"
-      has_space=`$ECHO "$path" | $GREP " "`
-      if test "x$has_space" != x; then
-        AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
-        AC_MSG_ERROR([Spaces are not allowed in this path.])
+      [ if [[ "$path" =~ " " ]]; then ]
+        if test "x$2" != "xNOFAIL"; then
+          AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
+          AC_MSG_ERROR([Spaces are not allowed in this path.])
+        else
+          path=""
+        fi
+      fi
+
+      # Use eval to expand a potential ~.
+      eval new_path="$path"
+      if test ! -e "$new_path"; then
+        if test "x$2" != "xNOFAIL"; then
+          AC_MSG_ERROR([The path of $1, which resolves as "$new_path", is not found.])
+        else
+          new_path=""
+        fi
+      fi
+
+      # Make the path absolute
+      if test "x$new_path" != x; then
+        if test -d "$new_path"; then
+          path="`cd "$new_path"; pwd -L`"
+        else
+          dir="`$DIRNAME "$new_path"`"
+          base="`$BASENAME "$new_path"`"
+          path="`cd "$dir"; pwd -L`/$base"
+        fi
+      else
+        path=""
       fi
 
-      UTIL_ABSOLUTE_PATH(path)
       $1="$path"
     fi
   fi
 ])
 
+###############################################################################
+# Check if the given file is a unix-style or windows-style executable, that is,
+# if it expects paths in unix-style or windows-style.
+# Returns "windows" or "unix" in $RESULT.
+AC_DEFUN([UTIL_CHECK_WINENV_EXEC_TYPE],
+[
+  # For cygwin and msys2, if it's linked with the correct helper lib, it
+  # accept unix paths
+  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin" || \
+      test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys2"; then
+    linked_libs=`$LDD $1 2>&1`
+    if test $? -ne 0; then
+      # Non-binary files (e.g. shell scripts) are unix files
+      RESULT=unix
+    else
+      [ if [[ "$linked_libs" =~ $WINENV_MARKER_DLL ]]; then ]
+        RESULT=unix
+      else
+        RESULT=windows
+      fi
+    fi
+  elif test "x$OPENJDK_BUILD_OS" = "xwindows"; then
+    # On WSL, we can check if it is a PE file
+    file_type=`$FILE -b $1 2>&1`
+    [ if [[ $file_type =~ PE.*Windows ]]; then ]
+      RESULT=windows
+    else
+      RESULT=unix
+    fi
+  else
+    RESULT=unix
+  fi
+])
+
 ###############################################################################
 # This will make sure the given variable points to a executable
 # with a full and proper path. This means:
@@ -121,65 +164,331 @@ AC_DEFUN([UTIL_FIXUP_PATH],
 # If the input variable does not have a directory specification, then
 # it need to be in the PATH.
 # $1: The name of the variable to fix
+# $2: Where to look for the command (replaces $PATH)
+# $3: set to NOFIXPATH to skip prefixing FIXPATH, even if needed on platform
 AC_DEFUN([UTIL_FIXUP_EXECUTABLE],
 [
+  input="[$]$1"
+
   # Only process if variable expands to non-empty
-
-  if test "x[$]$1" != x; then
-    if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
-      UTIL_FIXUP_EXECUTABLE_CYGWIN($1)
-    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-      UTIL_FIXUP_EXECUTABLE_MSYS($1)
-    elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-      UTIL_FIXUP_EXECUTABLE_WSL($1)
+  if test "x$input" != x; then
+    # First separate the path from the arguments. This will split at the first
+    # space.
+    [ if [[ "$OPENJDK_BUILD_OS" = "windows" && input =~ ^$FIXPATH ]]; then
+      line="${input#$FIXPATH }"
+      fixpath_prefix="$FIXPATH "
     else
-      # We're on a unix platform. Hooray! :)
-      # First separate the path from the arguments. This will split at the first
-      # space.
-      complete="[$]$1"
-      path="${complete%% *}"
-      tmp="$complete EOL"
-      arguments="${tmp#* }"
+      line="$input"
+      fixpath_prefix=""
+    fi ]
+    path="${line%% *}"
+    arguments="${line#"$path"}"
 
-      # Cannot rely on the command "which" here since it doesn't always work.
-      is_absolute_path=`$ECHO "$path" | $GREP ^/`
-      if test -z "$is_absolute_path"; then
-        # Path to executable is not absolute. Find it.
-        IFS_save="$IFS"
-        IFS=:
-        for p in $PATH; do
-          if test -f "$p/$path" && test -x "$p/$path"; then
-            new_path="$p/$path"
-            break
-          fi
-        done
-        IFS="$IFS_save"
-      else
-        # This is an absolute path, we can use it without further modifications.
+    [ if ! [[ "$path" =~ /|\\ ]]; then ]
+      # This is a command without path (e.g. "gcc" or "echo")
+      command_type=`type -t "$path"`
+      if test "x$command_type" = xbuiltin || test "x$command_type" = xkeyword; then
+        # Shell builtin or keyword; we're done here
         new_path="$path"
-      fi
-
-      if test "x$new_path" = x; then
-        AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
-        has_space=`$ECHO "$complete" | $GREP " "`
-        if test "x$has_space" != x; then
-          AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
+      else
+        # Search in $PATH using bash built-in 'type -p'.
+        saved_path="$PATH"
+        if test "x$2" != x; then
+          PATH="$2"
+        fi
+        new_path=`type -p "$path"`
+        if test "x$new_path" = x && test "x$OPENJDK_BUILD_OS" = "xwindows"; then
+          # Try again with .exe
+          new_path="`type -p "$path.exe"`"
+        fi
+        PATH="$saved_path"
+
+        if test "x$new_path" = x; then
+          AC_MSG_NOTICE([The command for $1, which resolves as "$input", is not found in the PATH.])
+          AC_MSG_ERROR([Cannot locate $path])
         fi
-        AC_MSG_ERROR([Cannot locate the the path of $1])
       fi
+    else
+      # This is a path with slashes, don't look at $PATH
+      if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
+        # fixpath.sh import will do all heavy lifting for us
+        new_path=`$FIXPATH_BASE import "$path"`
+
+        if test ! -e $new_path; then
+          # It failed, but maybe spaces were part of the path and not separating
+          # the command and argument. Retry using that assumption.
+          new_path=`$FIXPATH_BASE import "$input"`
+          if test ! -e $new_path; then
+            AC_MSG_NOTICE([The command for $1, which resolves as "$input", can not be found.])
+            AC_MSG_ERROR([Cannot locate $input])
+          fi
+          # It worked, clear all "arguments"
+          arguments=""
+        fi
+      else # on unix
+        # Make absolute
+        $1="$path"
+        UTIL_FIXUP_PATH($1, NOFAIL)
+        new_path="[$]$1"
+
+        if test ! -e $new_path; then
+          AC_MSG_NOTICE([The command for $1, which resolves as "$input", is not found])
+          [ if [[ "$path" =~ " " ]]; then ]
+            AC_MSG_NOTICE([This might be caused by spaces in the path, which is not allowed.])
+          fi
+          AC_MSG_ERROR([Cannot locate $path])
+        fi
+        if test ! -x $new_path; then
+          AC_MSG_NOTICE([The command for $1, which resolves as "$input", is not executable.])
+          AC_MSG_ERROR([Cannot execute command at $path])
+        fi
+      fi # end on unix
+    fi # end with or without slashes
+
+    # Now we have a usable command as new_path, with arguments in arguments
+    if test "x$OPENJDK_BUILD_OS" = "xwindows"; then
+      if test "x$fixpath_prefix" = x; then
+        # Only mess around if fixpath_prefix was not given
+        UTIL_CHECK_WINENV_EXEC_TYPE("$new_path")
+        if test "x$RESULT" = xwindows; then
+          fixpath_prefix="$FIXPATH "
+          # make sure we have an .exe suffix (but not two)
+          new_path="${new_path%.exe}.exe"
+        else
+          # If we have gotten a .exe suffix, remove it
+          new_path="${new_path%.exe}"
+        fi
+      fi
+    fi
+
+    if test "x$3" = xNOFIXPATH; then
+      fixpath_prefix=""
     fi
 
     # Now join together the path and the arguments once again
-    if test "x$arguments" != xEOL; then
-      new_complete="$new_path ${arguments% *}"
+    new_complete="$fixpath_prefix$new_path$arguments"
+    $1="$new_complete"
+  fi
+])
+
+###############################################################################
+# Setup a tool for the given variable. If correctly specified by the user,
+# use that value, otherwise search for the tool using the supplied code snippet.
+# $1: variable to set
+# $2: code snippet to call to look for the tool
+# $3: code snippet to call if variable was used to find tool
+AC_DEFUN([UTIL_SETUP_TOOL],
+[
+  # Publish this variable in the help.
+  AC_ARG_VAR($1, [Override default value for $1])
+
+  if [[ -z "${$1+x}" ]]; then
+    # The variable is not set by user, try to locate tool using the code snippet
+    $2
+  else
+    # The variable is set, but is it from the command line or the environment?
+
+    # Try to remove the string !$1! from our list.
+    try_remove_var=${CONFIGURE_OVERRIDDEN_VARIABLES//!$1!/}
+    if test "x$try_remove_var" = "x$CONFIGURE_OVERRIDDEN_VARIABLES"; then
+      # If it failed, the variable was not from the command line. Ignore it,
+      # but warn the user (except for BASH, which is always set by the calling BASH).
+      if test "x$1" != xBASH; then
+        AC_MSG_WARN([Ignoring value of $1 from the environment. Use command line variables instead.])
+      fi
+      # Try to locate tool using the code snippet
+      $2
     else
-      new_complete="$new_path"
+      # If it succeeded, then it was overridden by the user. We will use it
+      # for the tool.
+
+      # First remove it from the list of overridden variables, so we can test
+      # for unknown variables in the end.
+      CONFIGURE_OVERRIDDEN_VARIABLES="$try_remove_var"
+
+      tool_override=[$]$1
+
+      # Check if we try to supply an empty value
+      if test "x$tool_override" = x; then
+        AC_MSG_CHECKING([for $1])
+        AC_MSG_RESULT([[[disabled by user]]])
+      else
+        # Split up override in command part and argument part
+        tool_and_args=($tool_override)
+        [ tool_command=${tool_and_args[0]} ]
+        [ unset 'tool_and_args[0]' ]
+        [ tool_args=${tool_and_args[@]} ]
+
+        # Check if the provided tool contains a complete path.
+        tool_basename="${tool_command##*/}"
+        if test "x$tool_basename" = "x$tool_command"; then
+          # A command without a complete path is provided, search $PATH.
+          AC_MSG_NOTICE([Will search for user supplied tool "$tool_basename"])
+          AC_PATH_PROGS($1, $tool_basename ${tool_basename}.exe)
+          tool_command="[$]$1"
+          if test "x$tool_command" = x; then
+            AC_MSG_ERROR([User supplied tool $1="$tool_basename" could not be found in PATH])
+          fi
+        else
+          # Otherwise we believe it is a complete path. Use it as it is.
+          if test ! -x "$tool_command" && test ! -x "${tool_command}.exe"; then
+            AC_MSG_ERROR([User supplied tool $1="$tool_command" does not exist or is not executable])
+          fi
+          if test ! -x "$tool_command"; then
+            tool_command="${tool_command}.exe"
+          fi
+          $1="$tool_command"
+        fi
+        if test "x$tool_args" != x; then
+          # If we got arguments, re-append them to the command after the fixup.
+          $1="[$]$1 $tool_args"
+        fi
+        AC_MSG_CHECKING([for $1])
+        AC_MSG_RESULT([[$]$1 [[user supplied]]])
+      fi
+    fi
+    $3
+  fi
+])
+
+###############################################################################
+# Locate a tool using proper methods.
+# $1: variable to set
+# $2: executable name (or list of names) to look for
+# $3: [path]
+# $4: set to NOFIXPATH to skip prefixing FIXPATH, even if needed on platform
+AC_DEFUN([UTIL_LOOKUP_PROGS],
+[
+  UTIL_SETUP_TOOL($1, [
+    $1=""
+
+    if test "x$3" != x; then
+      old_path="$PATH"
+      PATH="$3"
     fi
 
-    if test "x$complete" != "x$new_complete"; then
-      $1="$new_complete"
-      AC_MSG_NOTICE([Rewriting $1 to "$new_complete"])
+    for name in $2; do
+      AC_MSG_CHECKING(for $name)
+
+      command_type=`type -t "$name"`
+      if test "x$command_type" = xbuiltin || test "x$command_type" = xkeyword; then
+        # Shell builtin or keyword; we're done here
+        full_path="$name"
+        $1="$full_path"
+        AC_MSG_RESULT([[$full_path [builtin]]])
+        break
+      else
+        # Search in $PATH
+        old_ifs="$IFS"
+        IFS=":"
+        for elem in $PATH; do
+          IFS="$old_ifs"
+          if test "x$elem" = x; then
+            continue
+          fi
+          full_path="$elem/$name"
+          if test ! -e "$full_path" && test "x$OPENJDK_BUILD_OS" = "xwindows"; then
+            # Try again with .exe
+            full_path="$elem/$name.exe"
+          fi
+          if test -x "$full_path" && test ! -d "$full_path" ; then
+            $1="$full_path"
+            UTIL_FIXUP_EXECUTABLE($1, $3, $4)
+            result="[$]$1"
+
+            # If we have FIXPATH enabled, strip all instances of it and prepend
+            # a single one, to avoid double fixpath prefixing.
+            if test "x$4" != xNOFIXPATH; then
+              [ if [[ $FIXPATH != "" && $result =~ ^"$FIXPATH " ]]; then ]
+                result="\$FIXPATH ${result#"$FIXPATH "}"
+              fi
+            fi
+            AC_MSG_RESULT([$result])
+            break 2;
+          fi
+        done
+        IFS="$old_ifs"
+      fi
+      AC_MSG_RESULT([[[not found]]])
+    done
+
+    if test "x$3" != x; then
+      PATH="$old_path"
     fi
+  ])
+])
+
+###############################################################################
+# Call UTIL_SETUP_TOOL with AC_CHECK_TOOLS to locate the tool. This will look
+# first for cross-compilation tools.
+# $1: variable to set
+# $2: executable name (or list of names) to look for
+# $3: [path]
+AC_DEFUN([UTIL_LOOKUP_TOOLCHAIN_PROGS],
+[
+  if test "x$ac_tool_prefix" = x; then
+    UTIL_LOOKUP_PROGS($1, $2, $3)
+  else
+    prefixed_names=$(for name in $2; do echo ${ac_tool_prefix}${name} $name; done)
+    UTIL_LOOKUP_PROGS($1, $prefixed_names, $3)
+  fi
+])
+
+###############################################################################
+# Test that variable $1 denoting a program is not empty. If empty, exit with an error.
+# $1: variable to check
+AC_DEFUN([UTIL_CHECK_NONEMPTY],
+[
+  if test "x[$]$1" = x; then
+    AC_MSG_ERROR([Could not find required tool for $1])
+  fi
+])
+
+###############################################################################
+# Like UTIL_LOOKUP_PROGS but fails if no tool was found.
+# $1: variable to set
+# $2: executable name (or list of names) to look for
+# $3: [path]
+AC_DEFUN([UTIL_REQUIRE_PROGS],
+[
+  UTIL_LOOKUP_PROGS($1, $2, $3)
+  UTIL_CHECK_NONEMPTY($1)
+])
+
+###############################################################################
+# Like UTIL_LOOKUP_PROGS but fails if no tool was found.
+# $1: variable to set
+# $2: executable name (or list of names) to look for
+# $3: [path]
+AC_DEFUN([UTIL_REQUIRE_TOOLCHAIN_PROGS],
+[
+  UTIL_LOOKUP_TOOLCHAIN_PROGS($1, $2, $3)
+  UTIL_CHECK_NONEMPTY($1)
+])
+
+
+###############################################################################
+# Like UTIL_SETUP_TOOL but fails if no tool was found.
+# $1: variable to set
+# $2: autoconf macro to call to look for the special tool
+AC_DEFUN([UTIL_REQUIRE_SPECIAL],
+[
+  UTIL_SETUP_TOOL($1, [$2])
+  UTIL_CHECK_NONEMPTY($1)
+  # The special macro will return an absolute path, and is only used for
+  # unix tools. No further processing needed.
+])
+
+###############################################################################
+# Add FIXPATH prefix to variable. Normally this is done by UTIL_LOOKUP_PROGS
+# or UTIL_FIXUP_EXECUTABLE, but in some circumstances this has to be done
+# explicitly, such as when the command in question does not exist yet.
+#
+# $1: variable to add fixpath to
+AC_DEFUN([UTIL_ADD_FIXPATH],
+[
+  if test "x$FIXPATH" != x; then
+    $1="$FIXPATH [$]$1"
   fi
 ])
 
@@ -208,8 +517,8 @@ AC_DEFUN([UTIL_REMOVE_SYMBOLIC_LINKS],
       sym_link_file=`$BASENAME [$]$1`
       cd $sym_link_dir
       # Use -P flag to resolve symlinks in directories.
-      cd `$THEPWDCMD -P`
-      sym_link_dir=`$THEPWDCMD -P`
+      cd `pwd -P`
+      sym_link_dir=`pwd -P`
       # Resolve file symlinks
       while test $COUNTER -lt 20; do
         ISLINK=`$LS -l $sym_link_dir/$sym_link_file | $GREP '\->' | $SED -e 's/.*-> \(.*\)/\1/'`
@@ -220,7 +529,7 @@ AC_DEFUN([UTIL_REMOVE_SYMBOLIC_LINKS],
         # Again resolve directory symlinks since the target of the just found
         # link could be in a different directory
         cd `$DIRNAME $ISLINK`
-        sym_link_dir=`$THEPWDCMD -P`
+        sym_link_dir=`pwd -P`
         sym_link_file=`$BASENAME $ISLINK`
         let COUNTER=COUNTER+1
       done
@@ -229,4 +538,3 @@ AC_DEFUN([UTIL_REMOVE_SYMBOLIC_LINKS],
     fi
   fi
 ])
-

make/autoconf/util_windows.m4

@@ -1,451 +0,0 @@
-#
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
-# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-#
-# This code is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.  Oracle designates this
-# particular file as subject to the "Classpath" exception as provided
-# by Oracle in the LICENSE file that accompanied this code.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-AC_DEFUN([UTIL_REWRITE_AS_UNIX_PATH],
-[
-  windows_path="[$]$1"
-  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
-    unix_path=`$CYGPATH -u "$windows_path"`
-    $1="$unix_path"
-  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-    unix_path=`$ECHO "$windows_path" | $SED -e 's,^\\(.\\):,/\\1,g' -e 's,\\\\,/,g'`
-    $1="$unix_path"
-  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-    # wslpath does not check the input, only call if an actual windows path was
-    # given.
-    if $ECHO "$windows_path" | $GREP -q ["^[a-zA-Z]:[\\\\/]"]; then
-      unix_path=`$WSLPATH -u "$windows_path"`
-      $1="$unix_path"
-    fi
-  fi
-])
-
-AC_DEFUN([UTIL_REWRITE_AS_WINDOWS_MIXED_PATH],
-[
-  unix_path="[$]$1"
-  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
-    windows_path=`$CYGPATH -m "$unix_path"`
-    $1="$windows_path"
-  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
-    windows_path=`cmd //c echo $unix_path`
-    $1="$windows_path"
-  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.wsl"; then
-    windows_path=`$WSLPATH -m "$unix_path" 2>/dev/null`
-    if test $? -ne 0; then
-      dir=`dirname "$unix_path"`
-      base=`basename "$unix_path"`
-      windows_path=`$WSLPATH -m "$dir"`/"$base"
-      if test $? -ne 0; then
-        AC_MSG_ERROR([Cannot convert \"$unix_path\" to Windows path])
-      fi
-    fi
-    $1="$windows_path"
-  fi
-])
-
-# Helper function which possibly converts a path using DOS-style short mode.
-# If so, the updated path is stored in $new_path.
-# $1: The path to check
-AC_DEFUN([UTIL_MAKE_WINDOWS_SPACE_SAFE_CYGWIN],
-[
-  input_path="$1"
-  # Check if we need to convert this using DOS-style short mode. If the path
-  # contains just simple characters, use it. Otherwise (spaces, weird characters),
-  # take no chances and rewrite it.
-  # Note: m4 eats our [], so we need to use @<:@ and @:>@ instead.
-  has_forbidden_chars=`$ECHO "$input_path" | $GREP @<:@^-._/a-zA-Z0-9@:>@`
-  if test "x$has_forbidden_chars" != x; then
-    # Now convert it to mixed DOS-style, short mode (no spaces, and / instead of \)
-    shortmode_path=`$CYGPATH -s -m -a "$input_path"`
-    path_after_shortmode=`$CYGPATH -u "$shortmode_path"`
-    if test "x$path_after_shortmode" != "x$input_to_shortpath"; then
-      # Going to short mode and back again did indeed matter. Since short mode is
-      # case insensitive, let's make it lowercase to improve readability.
-      shortmode_path=`$ECHO "$shortmode_path" | $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-      # Now convert it back to Unix-style (cygpath)
-      input_path=`$CYGPATH -u "$shortmode_path"`
-      new_path="$input_path"
-    fi
-  fi
-
-  test_cygdrive_prefix=`$ECHO $input_path | $GREP ^/cygdrive/`
-  if test "x$test_cygdrive_prefix" = x; then
-    # As a simple fix, exclude /usr/bin since it's not a real path.
-    if test "x`$ECHO $1 | $GREP ^/usr/bin/`" = x; then
-      # The path is in a Cygwin special directory (e.g. /home). We need this converted to
-      # a path prefixed by /cygdrive for fixpath to work.
-      new_path="$CYGWIN_ROOT_PATH$input_path"
-    fi
-  fi
-])
-
-# Helper function which possibly converts a path using DOS-style short mode.
-# If so, the updated path is stored in $new_path.
-# $1: The path to check
-AC_DEFUN([UTIL_MAKE_WINDOWS_SPACE_SAFE_MSYS],
-[
-  input_path="$1"
-  # Check if we need to convert this using DOS-style short mode. If the path
-  # contains just simple characters, use it. Otherwise (spaces, weird characters),
-  # take no chances and rewrite it.
-  # Note: m4 eats our [], so we need to use @<:@ and @:>@ instead.
-  has_forbidden_chars=`$ECHO "$input_path" | $GREP @<:@^-_/:a-zA-Z0-9@:>@`
-  if test "x$has_forbidden_chars" != x; then
-    # Now convert it to mixed DOS-style, short mode (no spaces, and / instead of \)
-    new_path=`cmd /c "for %A in (\"$input_path\") do @echo %~sA"|$TR \\\\\\\\ / | $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-  fi
-])
-
-# Helper function which possibly converts a path using DOS-style short mode.
-# If so, the updated path is stored in $new_path.
-# $1: The path to check
-AC_DEFUN([UTIL_MAKE_WINDOWS_SPACE_SAFE_WSL],
-[
-  input_path="$1"
-  # Check if we need to convert this using DOS-style short mode. If the path
-  # contains just simple characters, use it. Otherwise (spaces, weird characters),
-  # take no chances and rewrite it.
-  # Note: m4 eats our [], so we need to use @<:@ and @:>@ instead.
-  has_forbidden_chars=`$ECHO "$input_path" | $GREP [[^-_/:a-zA-Z0-9\\.]]`
-  if test "x$has_forbidden_chars" != x; then
-    # Now convert it to mixed DOS-style, short mode (no spaces, and / instead of \)
-    TOPDIR_windows="$TOPDIR"
-    UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([TOPDIR_windows])
-    # First convert to Windows path to make input valid for cmd
-    UTIL_REWRITE_AS_WINDOWS_MIXED_PATH([input_path])
-    # Reset PATH since it can contain a mix of WSL/linux paths and Windows paths from VS,
-    # which, in combination with WSLENV, will make the WSL layer complain
-    old_path="$PATH"
-    PATH=
-    new_path=`$CMD /c $TOPDIR_windows/make/scripts/windowsShortName.bat "$input_path" \
-        | $SED -e 's|\r||g' \
-        | $TR \\\\\\\\ / | $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
-    # Rewrite back to unix style
-    PATH="$old_path"
-    UTIL_REWRITE_AS_UNIX_PATH([new_path])
-  fi
-])
-
-# FIXME: The UTIL_FIXUP_*_CYGWIN/MSYS is most likely too convoluted
-# and could probably be heavily simplified. However, all changes in this
-# area tend to need lot of testing in different scenarios, and in lack of
-# proper unit testing, cleaning this up has not been deemed worth the effort
-# at the moment.
-
-AC_DEFUN([UTIL_FIXUP_PATH_CYGWIN],
-[
-  # Input might be given as Windows format, start by converting to
-  # unix format.
-  path="[$]$1"
-  new_path=`$CYGPATH -u "$path"`
-
-  UTIL_ABSOLUTE_PATH(new_path)
-
-  # Cygwin tries to hide some aspects of the Windows file system, such that binaries are
-  # named .exe but called without that suffix. Therefore, "foo" and "foo.exe" are considered
-  # the same file, most of the time (as in "test -f"). But not when running cygpath -s, then
-  # "foo.exe" is OK but "foo" is an error.
-  #
-  # This test is therefore slightly more accurate than "test -f" to check for file precense.
-  # It is also a way to make sure we got the proper file name for the real test later on.
-  test_shortpath=`$CYGPATH -s -m "$new_path" 2> /dev/null`
-  if test "x$test_shortpath" = x; then
-    AC_MSG_NOTICE([The path of $1, which resolves as "$path", is invalid.])
-    AC_MSG_ERROR([Cannot locate the the path of $1])
-  fi
-
-  # Call helper function which possibly converts this using DOS-style short mode.
-  # If so, the updated path is stored in $new_path.
-  UTIL_MAKE_WINDOWS_SPACE_SAFE_CYGWIN([$new_path])
-
-  if test "x$path" != "x$new_path"; then
-    $1="$new_path"
-    AC_MSG_NOTICE([Rewriting $1 to "$new_path"])
-  fi
-])
-
-AC_DEFUN([UTIL_FIXUP_PATH_MSYS],
-[
-  path="[$]$1"
-  has_colon=`$ECHO $path | $GREP ^.:`
-  new_path="$path"
-  if test "x$has_colon" = x; then
-    # Not in mixed or Windows style, start by that.
-    new_path=`cmd //c echo $path`
-  fi
-
-  UTIL_ABSOLUTE_PATH(new_path)
-
-  UTIL_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
-  UTIL_REWRITE_AS_UNIX_PATH(new_path)
-  if test "x$path" != "x$new_path"; then
-    $1="$new_path"
-    AC_MSG_NOTICE([Rewriting $1 to "$new_path"])
-  fi
-
-  # Save the first 10 bytes of this path to the storage, so fixpath can work.
-  all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}" "${new_path:0:10}")
-])
-
-AC_DEFUN([UTIL_FIXUP_PATH_WSL],
-[
-  # Input might be given as Windows format, start by converting to
-  # unix format.
-  new_path="[$]$1"
-  UTIL_REWRITE_AS_UNIX_PATH([new_path])
-
-  UTIL_ABSOLUTE_PATH(new_path)
-
-  # Call helper function which possibly converts this using DOS-style short mode.
-  # If so, the updated path is stored in $new_path.
-  UTIL_MAKE_WINDOWS_SPACE_SAFE_WSL([$new_path])
-
-  if test "x$path" != "x$new_path"; then
-    $1="$new_path"
-    AC_MSG_NOTICE([Rewriting $1 to "$new_path"])
-  fi
-])
-
-AC_DEFUN([UTIL_FIXUP_EXECUTABLE_CYGWIN],
-[
-  # First separate the path from the arguments. This will split at the first
-  # space.
-  complete="[$]$1"
-  path="${complete%% *}"
-  tmp="$complete EOL"
-  arguments="${tmp#* }"
-
-  # Input might be given as Windows format, start by converting to
-  # unix format.
-  new_path=`$CYGPATH -u "$path"`
-
-  # Now try to locate executable using which
-  new_path=`$WHICH "$new_path" 2> /dev/null`
-  # bat and cmd files are not always considered executable in cygwin causing which
-  # to not find them
-  if test "x$new_path" = x \
-      && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
-      && test "x`$LS \"$path\" 2>/dev/null`" != x; then
-    new_path=`$CYGPATH -u "$path"`
-  fi
-  if test "x$new_path" = x; then
-    # Oops. Which didn't find the executable.
-    # The splitting of arguments from the executable at a space might have been incorrect,
-    # since paths with space are more likely in Windows. Give it another try with the whole
-    # argument.
-    path="$complete"
-    arguments="EOL"
-    new_path=`$CYGPATH -u "$path"`
-    new_path=`$WHICH "$new_path" 2> /dev/null`
-    # bat and cmd files are not always considered executable in cygwin causing which
-    # to not find them
-    if test "x$new_path" = x \
-        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
-        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
-      new_path=`$CYGPATH -u "$path"`
-    fi
-    if test "x$new_path" = x; then
-      # It's still not found. Now this is an unrecoverable error.
-      AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
-      has_space=`$ECHO "$complete" | $GREP " "`
-      if test "x$has_space" != x; then
-        AC_MSG_NOTICE([You might be mixing spaces in the path and extra arguments, which is not allowed.])
-      fi
-      AC_MSG_ERROR([Cannot locate the the path of $1])
-    fi
-  fi
-
-  # Cygwin tries to hide some aspects of the Windows file system, such that binaries are
-  # named .exe but called without that suffix. Therefore, "foo" and "foo.exe" are considered
-  # the same file, most of the time (as in "test -f"). But not when running cygpath -s, then
-  # "foo.exe" is OK but "foo" is an error.
-  #
-  # This test is therefore slightly more accurate than "test -f" to check for file presence.
-  # It is also a way to make sure we got the proper file name for the real test later on.
-  test_shortpath=`$CYGPATH -s -m "$new_path" 2> /dev/null`
-  if test "x$test_shortpath" = x; then
-    # Short path failed, file does not exist as specified.
-    # Try adding .exe or .cmd
-    if test -f "${new_path}.exe"; then
-      input_to_shortpath="${new_path}.exe"
-    elif test -f "${new_path}.cmd"; then
-      input_to_shortpath="${new_path}.cmd"
-    else
-      AC_MSG_NOTICE([The path of $1, which resolves as "$new_path", is invalid.])
-      AC_MSG_NOTICE([Neither "$new_path" nor "$new_path.exe/cmd" can be found])
-      AC_MSG_ERROR([Cannot locate the the path of $1])
-    fi
-  else
-    input_to_shortpath="$new_path"
-  fi
-
-  # Call helper function which possibly converts this using DOS-style short mode.
-  # If so, the updated path is stored in $new_path.
-  new_path="$input_to_shortpath"
-  UTIL_MAKE_WINDOWS_SPACE_SAFE_CYGWIN([$input_to_shortpath])
-  # remove trailing .exe if any
-  new_path="${new_path/%.exe/}"
-])
-
-AC_DEFUN([UTIL_FIXUP_EXECUTABLE_MSYS],
-[
-  # First separate the path from the arguments. This will split at the first
-  # space.
-  complete="[$]$1"
-  path="${complete%% *}"
-  tmp="$complete EOL"
-  arguments="${tmp#* }"
-
-  # Input might be given as Windows format, start by converting to
-  # unix format.
-  new_path="$path"
-  UTIL_REWRITE_AS_UNIX_PATH(new_path)
-
-  # Now try to locate executable using which
-  new_path=`$WHICH "$new_path" 2> /dev/null`
-
-  if test "x$new_path" = x; then
-    # Oops. Which didn't find the executable.
-    # The splitting of arguments from the executable at a space might have been incorrect,
-    # since paths with space are more likely in Windows. Give it another try with the whole
-    # argument.
-    path="$complete"
-    arguments="EOL"
-    new_path="$path"
-    UTIL_REWRITE_AS_UNIX_PATH(new_path)
-
-    new_path=`$WHICH "$new_path" 2> /dev/null`
-    # bat and cmd files are not always considered executable in MSYS causing which
-    # to not find them
-    if test "x$new_path" = x \
-        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
-        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
-      new_path="$path"
-      UTIL_REWRITE_AS_UNIX_PATH(new_path)
-    fi
-
-    if test "x$new_path" = x; then
-      # It's still not found. Now this is an unrecoverable error.
-      AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
-      has_space=`$ECHO "$complete" | $GREP " "`
-      if test "x$has_space" != x; then
-        AC_MSG_NOTICE([You might be mixing spaces in the path and extra arguments, which is not allowed.])
-      fi
-      AC_MSG_ERROR([Cannot locate the the path of $1])
-    fi
-  fi
-
-  # Now new_path has a complete unix path to the binary
-  if test "x`$ECHO $new_path | $GREP ^/bin/`" != x; then
-    # Keep paths in /bin as-is, but remove trailing .exe if any
-    new_path="${new_path/%.exe/}"
-    # Do not save /bin paths to all_fixpath_prefixes!
-  else
-    # Not in mixed or Windows style, start by that.
-    new_path=`cmd //c echo $new_path`
-    UTIL_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
-    # Output is in $new_path
-    UTIL_REWRITE_AS_UNIX_PATH(new_path)
-    # remove trailing .exe if any
-    new_path="${new_path/%.exe/}"
-
-    # Save the first 10 bytes of this path to the storage, so fixpath can work.
-    all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}" "${new_path:0:10}")
-  fi
-])
-
-AC_DEFUN([UTIL_FIXUP_EXECUTABLE_WSL],
-[
-  # First separate the path from the arguments. This will split at the first
-  # space.
-  complete="[$]$1"
-  path="${complete%% *}"
-  tmp="$complete EOL"
-  arguments="${tmp#* }"
-
-  # Input might be given as Windows format, start by converting to
-  # unix format.
-  new_path="$path"
-  UTIL_REWRITE_AS_UNIX_PATH([new_path])
-
-  # Now try to locate executable using which
-  new_path_bak="$new_path"
-  new_path=`$WHICH "$new_path" 2> /dev/null`
-  # bat and cmd files are not considered executable in WSL
-  if test "x$new_path" = x \
-      && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
-      && test "x`$LS \"$path\" 2>/dev/null`" != x; then
-    new_path="$new_path_back"
-  fi
-  if test "x$new_path" = x; then
-    # Oops. Which didn't find the executable.
-    # The splitting of arguments from the executable at a space might have been incorrect,
-    # since paths with space are more likely in Windows. Give it another try with the whole
-    # argument.
-    path="$complete"
-    arguments="EOL"
-    new_path="$path"
-    UTIL_REWRITE_AS_UNIX_PATH([new_path])
-    new_path_bak="$new_path"
-    new_path=`$WHICH "$new_path" 2> /dev/null`
-    # bat and cmd files are not considered executable in WSL
-    if test "x$new_path" = x \
-        && test "x`$ECHO \"$path\" | $GREP -i -e \"\\.bat$\" -e \"\\.cmd$\"`" != x \
-        && test "x`$LS \"$path\" 2>/dev/null`" != x; then
-      new_path="$new_path_bak"
-    fi
-    if test "x$new_path" = x; then
-      # It's still not found. Now this is an unrecoverable error.
-      AC_MSG_NOTICE([The path of $1, which resolves as "$complete", is not found.])
-      has_space=`$ECHO "$complete" | $GREP " "`
-      if test "x$has_space" != x; then
-        AC_MSG_NOTICE([You might be mixing spaces in the path and extra arguments, which is not allowed.])
-      fi
-      AC_MSG_ERROR([Cannot locate the the path of $1])
-    fi
-  fi
-
-  # In WSL, suffixes must be present for Windows executables
-  if test ! -f "$new_path"; then
-    # Try adding .exe or .cmd
-    if test -f "${new_path}.exe"; then
-      input_to_shortpath="${new_path}.exe"
-    elif test -f "${new_path}.cmd"; then
-      input_to_shortpath="${new_path}.cmd"
-    else
-      AC_MSG_NOTICE([The path of $1, which resolves as "$new_path", is invalid.])
-      AC_MSG_NOTICE([Neither "$new_path" nor "$new_path.exe/cmd" can be found])
-      AC_MSG_ERROR([Cannot locate the the path of $1])
-    fi
-  else
-    input_to_shortpath="$new_path"
-  fi
-
-  # Call helper function which possibly converts this using DOS-style short mode.
-  # If so, the updated path is stored in $new_path.
-  new_path="$input_to_shortpath"
-  UTIL_MAKE_WINDOWS_SPACE_SAFE_WSL([$input_to_shortpath])
-])
-

make/autoconf/version-numbers

@@ -1,55 +0,0 @@
-#
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
-# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
-#
-# This code is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.  Oracle designates this
-# particular file as subject to the "Classpath" exception as provided
-# by Oracle in the LICENSE file that accompanied this code.
-#
-# This code is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# version 2 for more details (a copy is included in the LICENSE file that
-# accompanied this code).
-#
-# You should have received a copy of the GNU General Public License version
-# 2 along with this work; if not, write to the Free Software Foundation,
-# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
-# or visit www.oracle.com if you need additional information or have any
-# questions.
-#
-
-# Default version, product, and vendor information to use,
-# unless overridden by configure
-
-DEFAULT_VERSION_FEATURE=16
-DEFAULT_VERSION_INTERIM=0
-DEFAULT_VERSION_UPDATE=0
-DEFAULT_VERSION_PATCH=0
-DEFAULT_VERSION_EXTRA1=0
-DEFAULT_VERSION_EXTRA2=0
-DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2021-03-16
-DEFAULT_VERSION_CLASSFILE_MAJOR=60  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
-DEFAULT_VERSION_CLASSFILE_MINOR=0
-DEFAULT_ACCEPTABLE_BOOT_VERSIONS="14 15 16"
-DEFAULT_JDK_SOURCE_TARGET_VERSION=16
-DEFAULT_PROMOTED_VERSION_PRE=ea
-
-LAUNCHER_NAME=openjdk
-PRODUCT_NAME=OpenJDK
-PRODUCT_SUFFIX="Runtime Environment"
-JDK_RC_PLATFORM_NAME=Platform
-COMPANY_NAME=N/A
-HOTSPOT_VM_DISTRO="OpenJDK"
-VENDOR_URL=https://openjdk.java.net/
-VENDOR_URL_BUG=https://bugreport.java.com/bugreport/
-VENDOR_URL_VM_BUG=https://bugreport.java.com/bugreport/crash.jsp
-
-# Might need better names for these
-MACOSX_BUNDLE_NAME_BASE="OpenJDK"
-MACOSX_BUNDLE_ID_BASE="net.java.openjdk"

make/common/JavaCompilation.gmk

@@ -177,6 +177,12 @@ define SetupJavaCompilationBody
     $$(error Must specify BIN (in $1))
   endif
 
+  ifneq ($$($1_MODULE), )
+    $1_MODULE_SUBDIR := /$$($1_MODULE)
+  endif
+
+  $1_SAFE_NAME := $$(strip $$(subst /,_, $1))
+
   ifeq ($$($1_SMALL_JAVA), )
     # If unspecified, default to true
     $1_SMALL_JAVA := true
@@ -202,24 +208,42 @@ define SetupJavaCompilationBody
       # If unspecified, default to the new jdk we're building
       $1_TARGET_RELEASE := $$(TARGET_RELEASE_BOOTJDK)
     endif
+  else ifeq ($$($1_COMPILER), buildjdk)
+    $1_JAVAC_CMD := $$(BUILD_JAVAC)
+
+    ifeq ($$($1_TARGET_RELEASE), )
+      # If unspecified, default to the new jdk we're building
+      $1_TARGET_RELEASE := $$(TARGET_RELEASE_NEWJDK)
+    endif
   else ifeq ($$($1_COMPILER), interim)
     # Use java server if it is enabled, and the user does not want a specialized
     # class path.
     ifeq ($$(ENABLE_JAVAC_SERVER)+$$($1_CLASSPATH), true+)
       $1_JAVAC := $$(INTERIM_LANGTOOLS_ARGS) -m jdk.compiler.interim/com.sun.tools.sjavac.Main
 
-      # How to launch the server. This must use JAVA_DETACH, which is the "big" java
-      # with an ability to detach from fixpath (on Windows)
-      # This will be executed by the client, if needed.
-      $1_JAVAC_SERVER_CMD := $$(JAVA_DETACH) $$($1_JAVA_FLAGS) $$($1_JAVAC)
-      $1_ESCAPED_CMD := $$(subst $$(SPACE),%20,$$(subst $$(COMMA),%2C,$$(strip $$($1_JAVAC_SERVER_CMD))))
+      # Create a configuration file with the needed information for the javac
+      # server to function properly.
+      $1_JAVAC_SERVER_CONFIG := $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$$($1_SAFE_NAME)-server.conf
 
-      # The port file contains the tcp/ip on which the server listens
+      # The portfile contains the tcp/ip on which the server listens
       # and the cookie necessary to talk to the server.
-      $1_JAVA_SERVER_FLAGS := --server:portfile=$$(JAVAC_SERVER_DIR)/server.port,sjavac=$$($1_ESCAPED_CMD)
+      $1_JAVAC_PORT_FILE := $$(call FixPath, $$(JAVAC_SERVER_DIR)/server.port)
 
-      # Always use small to launch client
-      $1_JAVAC_CMD := $$(JAVA_SMALL) $$($1_JAVA_FLAGS) $$($1_JAVAC) $$($1_JAVA_SERVER_FLAGS)
+      # The servercmd specifies how to launch the server. This will be executed
+      # by the client, if needed.
+      $1_JAVAC_SERVER_CMD := $$(call FixPath, $$(JAVA) $$($1_JAVA_FLAGS) $$($1_JAVAC))
+
+      $1_CONFIG_VARDEPS := $$($1_JAVAC_PORT_FILE) $$($1_JAVAC_SERVER_CMD)
+      $1_CONFIG_VARDEPS_FILE := $$(call DependOnVariable, $1_CONFIG_VARDEPS, \
+          $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$1.config_vardeps)
+
+      $$($1_JAVAC_SERVER_CONFIG): $$($1_CONFIG_VARDEPS_FILE)
+	$(ECHO) portfile=$$($1_JAVAC_PORT_FILE) > $$@
+	$(ECHO) servercmd=$$($1_JAVAC_SERVER_CMD) >> $$@
+
+      # Always use small java to launch client
+      $1_JAVAC_CMD := $$(JAVA_SMALL) $$($1_JAVA_FLAGS) $$($1_JAVAC) \
+          --server:conf=$$($1_JAVAC_SERVER_CONFIG)
     else
       # No javac server
       $1_JAVAC := $$(INTERIM_LANGTOOLS_ARGS) -m jdk.compiler.interim/com.sun.tools.javac.Main
@@ -245,7 +269,7 @@ define SetupJavaCompilationBody
   # Tell javac to do exactly as told and no more
   PARANOIA_FLAGS := -implicit:none -Xprefer:source -XDignore.symbol.file=true -encoding ascii
 
-  $1_FLAGS += -g -Xlint:all --doclint-format html5 $$($1_TARGET_RELEASE) $$(PARANOIA_FLAGS) $$(JAVA_WARNINGS_ARE_ERRORS)
+  $1_FLAGS += -g -Xlint:all $$($1_TARGET_RELEASE) $$(PARANOIA_FLAGS) $$(JAVA_WARNINGS_ARE_ERRORS)
   $1_FLAGS += $$($1_JAVAC_FLAGS)
 
   ifneq ($$($1_DISABLED_WARNINGS), )
@@ -256,10 +280,6 @@ define SetupJavaCompilationBody
     $1_FLAGS += -cp $$(call PathList, $$($1_CLASSPATH))
   endif
 
-  ifneq ($$($1_MODULE), )
-    $1_MODULE_SUBDIR := /$$($1_MODULE)
-  endif
-
   # Make sure the dirs exist, or that one of the EXTRA_FILES, that may not
   # exist yet, is in it.
   $$(foreach d, $$($1_SRC), \
@@ -304,9 +324,11 @@ define SetupJavaCompilationBody
   ifneq ($$($1_KEEP_DUPS), true)
     # Remove duplicate source files by keeping the first found of each duplicate.
     # This allows for automatic overrides with custom or platform specific versions
-    # source files.
+    # source files. Need to call DoubleDollar as we have java classes with '$' in
+    # their names.
     $1_SRCS := $$(strip $$(foreach s, $$($1_SRCS), \
-        $$(eval relative_src := $$(call remove-prefixes, $$($1_SRC), $$(s))) \
+        $$(eval relative_src := $$(call remove-prefixes, $$($1_SRC), \
+            $$(call DoubleDollar, $$(s)))) \
         $$(if $$($1_$$(relative_src)), \
           , \
           $$(eval $1_$$(relative_src) := 1) $$(s))))
@@ -322,9 +344,6 @@ define SetupJavaCompilationBody
       $$(error No source files found for $1)
     endif
   else
-
-    $1_SAFE_NAME := $$(strip $$(subst /,_, $1))
-
     # All files below META-INF are always copied.
     $1_ALL_COPIES := $$(filter $$(addsuffix /META-INF%,$$($1_SRC)),$$($1_ALL_SRCS))
     # Find all files to be copied from source to bin.
@@ -433,7 +452,7 @@ define SetupJavaCompilationBody
 
     # Do the actual compilation
     $$($1_COMPILE_TARGET): $$($1_SRCS) $$($1_FILELIST) $$($1_DEPENDS) \
-        $$($1_VARDEPS_FILE) $$($1_EXTRA_DEPS)
+        $$($1_VARDEPS_FILE) $$($1_EXTRA_DEPS) $$($1_JAVAC_SERVER_CONFIG)
 		$$(call MakeDir, $$(@D))
 		$$(call ExecuteWithLog, $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$$($1_SAFE_NAME)_batch, \
 		    $$($1_JAVAC_CMD) $$($1_FLAGS) \

make/common/JdkNativeCompilation.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -77,8 +77,10 @@ ifeq ($(STATIC_LIBS), true)
   FindStaticLib =
 endif
 
+# Returns the module specific java header dir if it exists.
+# Param 1 - module name
 GetJavaHeaderDir = \
-  $(wildcard $(SUPPORT_OUTPUTDIR)/headers/$(strip $1))
+  $(if $(strip $1),$(wildcard $(SUPPORT_OUTPUTDIR)/headers/$(strip $1)))
 
 # Process a dir description such as "java.base:headers" into a set of proper absolute paths.
 ProcessDir = \
@@ -92,6 +94,16 @@ ProcessDir = \
     ) \
   )
 
+GLOBAL_VERSION_INFO_RESOURCE := $(TOPDIR)/src/java.base/windows/native/common/version.rc
+
+JDK_RCFLAGS=$(RCFLAGS) \
+    -D"JDK_VERSION_STRING=$(VERSION_STRING)" \
+    -D"JDK_COMPANY=$(COMPANY_NAME)" \
+    -D"JDK_VER=$(VERSION_NUMBER_FOUR_POSITIONS)" \
+    -D"JDK_COPYRIGHT=Copyright \xA9 $(COPYRIGHT_YEAR)" \
+    -D"JDK_NAME=$(JDK_RC_NAME) $(VERSION_SHORT)" \
+    -D"JDK_FVER=$(subst .,$(COMMA),$(VERSION_NUMBER_FOUR_POSITIONS))"
+
 # Setup make rules for creating a native shared library with suitable defaults
 # for the OpenJDK project.
 #
@@ -100,7 +112,7 @@ ProcessDir = \
 #
 # Remaining parameters are named arguments. These are all passed on to
 # SetupNativeCompilation, except for
-#   EXTRA_RC_FLAGS -- additional RC_FLAGS to append.
+#   EXTRA_RCFLAGS -- additional RCFLAGS to append.
 #   EXTRA_HEADER_DIRS -- additional directories to look for headers in
 #   EXTRA_SRC -- additional directories to look for source in
 #   EXCLUDE_SRC_PATTERNS -- exclude source dirs matching these patterns from
@@ -108,19 +120,32 @@ ProcessDir = \
 #   HEADERS_FROM_SRC -- if false, does not add source dirs automatically as
 #     header include dirs. (Defaults to true.)
 #   SRC -- this is passed on, but preprocessed to accept source dir designations
+#   RC_FILEDESC -- override the default FILEDESC for Windows version.rc
 #     such as "java.base:headers".
 SetupJdkLibrary = $(NamedParamsMacroTemplate)
 define SetupJdkLibraryBody
   ifeq ($$($1_OUTPUT_DIR), )
-    $1_OUTPUT_DIR := $$(call FindLibDirForModule, $$(MODULE))
+    ifneq ($$(MODULE), )
+      $1_OUTPUT_DIR := $$(call FindLibDirForModule, $$(MODULE))
+    else
+      $$(error Must specify OUTPUT_DIR in a MODULE free context)
+    endif
   endif
 
   ifeq ($$($1_OBJECT_DIR), )
-    $1_OBJECT_DIR := $$(SUPPORT_OUTPUTDIR)/native/$$(MODULE)/lib$$($1_NAME)
+    ifneq ($$(MODULE), )
+      $1_OBJECT_DIR := $$(SUPPORT_OUTPUTDIR)/native/$$(MODULE)/lib$$($1_NAME)
+    else
+      $$(error Must specify OBJECT_DIR in a MODULE free context)
+    endif
   endif
 
   ifeq ($$($1_SRC), )
-    $1_SRC := $$(call FindSrcDirsForLib, $$(MODULE), $$($1_NAME))
+    ifneq ($$(MODULE), )
+      $1_SRC := $$(call FindSrcDirsForLib, $$(MODULE), $$($1_NAME))
+    else
+      $$(error Must specify SRC in a MODULE free context)
+    endif
   else
     $1_SRC := $$(foreach dir, $$($1_SRC), $$(call ProcessDir, $$(dir)))
   endif
@@ -137,23 +162,25 @@ define SetupJdkLibraryBody
 
   ifeq ($$($1_VERSIONINFO_RESOURCE), )
     $1_VERSIONINFO_RESOURCE := $$(GLOBAL_VERSION_INFO_RESOURCE)
-  else ifeq ($$($1_VERSIONINFO_RESOURCE), DISABLE)
-    $1_VERSIONINFO_RESOURCE :=
   endif
 
-  ifeq ($$($1_RC_FLAGS), )
-    $1_RC_FLAGS :=  $(RC_FLAGS) \
-        -D "JDK_FNAME=$$($1_NAME).dll" \
-        -D "JDK_INTERNAL_NAME=$$($1_NAME)" \
-        -D "JDK_FTYPE=0x2L"
-  else ifeq ($$($1_RC_FLAGS), DISABLE)
-    $1_RC_FLAGS :=
+  ifeq ($$($1_RC_FILEDESC), )
+    $1_RC_FILEDESC := $(JDK_RC_NAME) binary
   endif
 
+  $1_RCFLAGS := $(JDK_RCFLAGS) \
+      -D"JDK_FILEDESC=$$(strip $$($1_RC_FILEDESC))" \
+      -D"JDK_FNAME=$$($1_NAME).dll" \
+      -D"JDK_INTERNAL_NAME=$$($1_NAME)" \
+      -D"JDK_FTYPE=0x2L" \
+      -I$(TOPDIR)/src/java.base/windows/native/common \
+      $$($1_EXTRA_RCFLAGS)
+
   ifneq ($$($1_HEADERS_FROM_SRC), false)
     $1_SRC_HEADER_FLAGS := $$(addprefix -I, $$(wildcard $$($1_SRC)))
   endif
-  # Always add the java header dir
+
+  # Add the module specific java header dir
   $1_SRC_HEADER_FLAGS += $$(addprefix -I, $$(call GetJavaHeaderDir, $$(MODULE)))
 
   ifneq ($$($1_EXTRA_HEADER_DIRS), )
@@ -171,7 +198,6 @@ define SetupJdkLibraryBody
   ifeq ($$($1_CFLAGS)$$($1_CXXFLAGS), )
     $1_CFLAGS += $$($1_SRC_HEADER_FLAGS) $$($1_EXTRA_HEADER_FLAGS)
   endif
-  $1_RC_FLAGS += $$($1_EXTRA_RC_FLAGS)
 
   # Since we reuse the rule name ($1), all our arguments will pass through.
   # We lose in transparency, but gain in brevity in this call...
@@ -186,35 +212,38 @@ endef
 #
 # Remaining parameters are named arguments. These are all passed on to
 # SetupNativeCompilation, except for
-#   EXTRA_RC_FLAGS -- additional RC_FLAGS to append.
+#   EXTRA_RCFLAGS -- additional RCFLAGS to append.
 SetupJdkExecutable = $(NamedParamsMacroTemplate)
 define SetupJdkExecutableBody
   $1_TYPE := EXECUTABLE
 
   ifeq ($$($1_OUTPUT_DIR), )
-    $1_OUTPUT_DIR := $$(call FindExecutableDirForModule, $$(MODULE))
+    ifneq ($$(MODULE), )
+      $1_OUTPUT_DIR := $$(call FindExecutableDirForModule, $$(MODULE))
+    else
+      $$(error Must specify OUTPUT_DIR in a MODULE free context)
+    endif
   endif
 
   ifeq ($$($1_OBJECT_DIR), )
-    $1_OBJECT_DIR := $$(SUPPORT_OUTPUTDIR)/native/$$(MODULE)/$$($1_NAME)
+    ifneq ($$(MODULE), )
+      $1_OBJECT_DIR := $$(SUPPORT_OUTPUTDIR)/native/$$(MODULE)/$$($1_NAME)
+    else
+      $$(error Must specify OBJECT_DIR in a MODULE free context)
+    endif
   endif
 
   ifeq ($$($1_VERSIONINFO_RESOURCE), )
     $1_VERSIONINFO_RESOURCE := $$(GLOBAL_VERSION_INFO_RESOURCE)
-  else ifeq ($$($1_VERSIONINFO_RESOURCE), DISABLE)
-    $1_VERSIONINFO_RESOURCE :=
   endif
 
-  ifeq ($$($1_RC_FLAGS), )
-    $1_RC_FLAGS :=  $(RC_FLAGS) \
-        -D "JDK_FNAME=$$($1_NAME).exe" \
-        -D "JDK_INTERNAL_NAME=$$($1_NAME)" \
-        -D "JDK_FTYPE=0x01L"
-  else ifeq ($$($1_RC_FLAGS), DISABLE)
-    $1_RC_FLAGS :=
-  endif
-
-  $1_RC_FLAGS += $$($1_EXTRA_RC_FLAGS)
+  $1_RCFLAGS := $(JDK_RCFLAGS) \
+      -D"JDK_FILEDESC=$(JDK_RC_NAME) binary" \
+      -D"JDK_FNAME=$$($1_NAME).exe" \
+      -D"JDK_INTERNAL_NAME=$$($1_NAME)" \
+      -D"JDK_FTYPE=0x1L" \
+      -I$(TOPDIR)/src/java.base/windows/native/common \
+      $$($1_EXTRA_RCFLAGS)
 
   # Since we reuse the rule name ($1), all our arguments will pass through.
   # We lose in transparency, but gain in brevity in this call...

make/common/MakeBase.gmk

@@ -64,6 +64,9 @@ define NEWLINE
 
 endef
 
+# Make sure we have a value (could be overridden on command line by caller)
+CREATING_BUILDJDK ?= false
+
 # Certain features only work in newer version of GNU Make. The build will still
 # function in 3.81, but will be less performant.
 ifeq (4.0, $(firstword $(sort 4.0 $(MAKE_VERSION))))
@@ -89,7 +92,7 @@ BUILDTIMESDIR=$(OUTPUTDIR)/make-support/build-times
 
 # Record starting time for build of a sub repository.
 define RecordStartTime
-	$(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_start_$(strip $1) && \
+	$(DATE) '+%Y %m %d %H %M %S' | $(AWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_start_$(strip $1) && \
 	$(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)_human_readable
 endef
 
@@ -97,10 +100,10 @@ endef
 # easy to read format. Handles builds that cross midnight. Expects
 # that a build will never take 24 hours or more.
 define RecordEndTime
-	$(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)
+	$(DATE) '+%Y %m %d %H %M %S' | $(AWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)
 	$(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)_human_readable
 	$(ECHO) `$(CAT) $(BUILDTIMESDIR)/build_time_start_$(strip $1)` `$(CAT) $(BUILDTIMESDIR)/build_time_end_$(strip $1)` $1 | \
-	    $(NAWK) '{ F=$$7; T=$$14; if (F > T) { T+=3600*24 }; D=T-F; H=int(D/3600); \
+	    $(AWK) '{ F=$$7; T=$$14; if (F > T) { T+=3600*24 }; D=T-F; H=int(D/3600); \
 	    M=int((D-H*3600)/60); S=D-H*3600-M*60; printf("%02d:%02d:%02d %s\n",H,M,S,$$15); }' \
 	    > $(BUILDTIMESDIR)/build_time_diff_$(strip $1)
 endef
@@ -436,37 +439,18 @@ endif
 # On Windows, converts a path from cygwin/unix style (e.g. /bin/foo) into
 # "mixed mode" (e.g. c:/cygwin/bin/foo). On other platforms, return the path
 # unchanged.
+# This also converts a colon-separated list of paths to a semicolon-separated
+# list.
 # This is normally not needed since we use the FIXPATH prefix for command lines,
 # but might be needed in certain circumstances.
 ifeq ($(call isTargetOs, windows), true)
-  ifeq ($(call isBuildOsEnv, windows.wsl), true)
-    FixPath = \
-      $(shell $(WSLPATH) -m $1)
-  else
-    FixPath = \
-      $(shell $(CYGPATH) -m $1)
-  endif
+  FixPath = \
+    $(strip $(subst \,\\, $(shell $(FIXPATH_BASE) print $(patsubst $(FIXPATH), , $1))))
 else
   FixPath = \
       $1
 endif
 
-################################################################################
-# FixPathList
-#
-# On Windows, converts a cygwin/unix style path list (colon-separated) into
-# the native format (mixed mode, semicolon-separated). On other platforms,
-# return the path list unchanged.
-################################################################################
-ifeq ($(call isTargetOs, windows), true)
-  FixPathList = \
-      $(subst @,$(SPACE),$(subst $(SPACE),;,$(foreach entry,$(subst :,$(SPACE),\
-      $(subst $(SPACE),@,$(strip $1))),$(call FixPath, $(entry)))))
-else
-  FixPathList = \
-      $1
-endif
-
 ################################################################################
 # DependOnVariable
 #
@@ -484,7 +468,7 @@ endif
 # Defines the sub directory structure to store variable value file in
 DependOnVariableDirName = \
     $(strip $(addsuffix $(if $(MODULE),/$(MODULE)), \
-        $(subst $(TOPDIR)/,, $(if $(filter /%, $(firstword $(MAKEFILE_LIST))), \
+        $(subst $(WORKSPACE_ROOT)/,, $(if $(filter /%, $(firstword $(MAKEFILE_LIST))), \
           $(firstword $(MAKEFILE_LIST)), \
           $(CURDIR)/$(firstword $(MAKEFILE_LIST))))))
 
@@ -496,6 +480,13 @@ DependOnVariableFileName = \
     $(strip $(if $(strip $2), $2, \
       $(MAKESUPPORT_OUTPUTDIR)/vardeps/$(DependOnVariableDirName)/$(strip $1).vardeps))
 
+# Writes the vardeps file. Assumes $1_filename has been setup
+# Param 1 - Name of variable
+DependOnVariableWriteFile = \
+    $(call MakeDir, $(dir $($1_filename))) \
+    $(call WriteFile, $1_old:=$(call DoubleDollar,$(call EscapeHash,$($1))), \
+         $($1_filename)) \
+
 # Does the actual work with parameters stripped.
 # If the file exists AND the contents is the same as the variable, do nothing
 # else print a new file.
@@ -505,14 +496,18 @@ DependOnVariableFileName = \
 DependOnVariableHelper = \
     $(strip \
         $(eval $1_filename := $(call DependOnVariableFileName, $1, $2)) \
-        $(if $(wildcard $($1_filename)), $(eval include $($1_filename))) \
-        $(if $(call equals, $(strip $($1)), $(strip $($1_old))),,\
-          $(call MakeDir, $(dir $($1_filename))) \
-          $(if $(findstring $(LOG_LEVEL), trace), \
-              $(info NewVariable $1: >$(strip $($1))<) \
-              $(info OldVariable $1: >$(strip $($1_old))<)) \
-          $(call WriteFile, $1_old:=$(call DoubleDollar,$(call EscapeHash,$($1))), \
-              $($1_filename))) \
+        $(if $(wildcard $($1_filename)), \
+          $(eval include $($1_filename)) \
+          $(if $(call equals, $(strip $($1)), $(strip $($1_old))),,\
+            $(if $(findstring $(LOG_LEVEL), trace), \
+                $(info NewVariable $1: >$(strip $($1))<) \
+                $(info OldVariable $1: >$(strip $($1_old))<) \
+            ) \
+            $(call DependOnVariableWriteFile,$1) \
+          ) \
+        , \
+          $(call DependOnVariableWriteFile,$1) \
+        ) \
         $($1_filename) \
     )
 

make/common/Modules.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2014, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -27,206 +27,50 @@ ifndef _MODULES_GMK
 _MODULES_GMK := 1
 
 ################################################################################
-#
-# BOOT_MODULES are modules defined by the boot loader
-# PLATFORM_MODULES are modules defined by the platform loader
-# JRE_TOOL_MODULES are tools included in JRE and defined by the application loader
-#
-# All other modules not declared below are defined by the application loader
-# and are not included in JRE.
+# Setup module sets for classloaders
 
-BOOT_MODULES :=
-PLATFORM_MODULES :=
-JRE_TOOL_MODULES :=
-UPGRADEABLE_MODULES :=
-AGGREGATOR_MODULES :=
-DOCS_MODULES :=
+include $(TOPDIR)/make/conf/module-loader-map.conf
 
+# Append platform-specific and upgradeable modules
+PLATFORM_MODULES += $(PLATFORM_MODULES_$(OPENJDK_TARGET_OS)) \
+    $(UPGRADEABLE_PLATFORM_MODULES)
+
+################################################################################
+# Setup module sets for docs
+
+include $(TOPDIR)/make/conf/docs-modules.conf
+
+################################################################################
+# Setup module sets needed by the build system
+
+include $(TOPDIR)/make/conf/build-module-sets.conf
+
+################################################################################
 # Hook to include the corresponding custom file, if present.
+# Allowing MODULE list extensions setup above.
 $(eval $(call IncludeCustomExtension, common/Modules.gmk))
 
-BOOT_MODULES += \
-    java.base \
-    java.datatransfer \
-    java.desktop \
-    java.instrument \
-    java.logging \
-    java.management \
-    java.management.rmi \
-    java.naming \
-    java.prefs \
-    java.rmi \
-    java.security.sasl \
-    java.xml \
-    jdk.incubator.foreign \
-    jdk.internal.vm.ci \
-    jdk.jfr \
-    jdk.management \
-    jdk.management.jfr \
-    jdk.management.agent \
-    jdk.net \
-    jdk.nio.mapmode \
-    jdk.sctp \
-    jdk.unsupported \
-    #
-
-# to be deprivileged
-BOOT_MODULES += \
-    jdk.naming.rmi \
-    #
-
-# Modules that directly or indirectly requiring upgradeable modules
-# should carefully be considered if it should be upgradeable or not.
-UPGRADEABLE_MODULES += \
-    java.compiler \
-    jdk.aot \
-    jdk.internal.vm.compiler \
-    jdk.internal.vm.compiler.management \
-    #
-
-
-AGGREGATOR_MODULES += \
-    java.se \
-    #
-
-PLATFORM_MODULES += \
-    $(UPGRADEABLE_MODULES) \
-    $(AGGREGATOR_MODULES)
-    #
-
-PLATFORM_MODULES += \
-    java.net.http \
-    java.scripting \
-    java.security.jgss \
-    java.smartcardio \
-    java.sql \
-    java.sql.rowset \
-    java.transaction.xa \
-    java.xml.crypto \
-    jdk.accessibility \
-    jdk.charsets \
-    jdk.crypto.cryptoki \
-    jdk.crypto.ec \
-    jdk.dynalink \
-    jdk.httpserver \
-    jdk.jsobject \
-    jdk.localedata \
-    jdk.naming.dns \
-    jdk.security.auth \
-    jdk.security.jgss \
-    jdk.xml.dom \
-    jdk.zipfs \
-    #
-
-ifeq ($(call isTargetOs, windows), true)
-  PLATFORM_MODULES += jdk.crypto.mscapi
-endif
-
-JRE_TOOL_MODULES += \
-    jdk.jdwp.agent \
-    jdk.incubator.jpackage \
-    #
-
 ################################################################################
+# Depending on the configuration, we might need to filter out some modules that
+# normally should have been included
 
-# DOCS_MODULES defines the root modules for javadoc generation.
-# All of their `require transitive` modules directly and indirectly will be included.
-DOCS_MODULES += \
-    java.se \
-    java.smartcardio \
-    jdk.accessibility \
-    jdk.attach \
-    jdk.charsets \
-    jdk.compiler \
-    jdk.crypto.cryptoki \
-    jdk.crypto.ec \
-    jdk.dynalink \
-    jdk.editpad \
-    jdk.hotspot.agent \
-    jdk.httpserver \
-    jdk.incubator.jpackage \
-    jdk.jartool \
-    jdk.javadoc \
-    jdk.jcmd \
-    jdk.jconsole \
-    jdk.jdeps \
-    jdk.jdi \
-    jdk.jdwp.agent \
-    jdk.jfr \
-    jdk.jlink \
-    jdk.jsobject \
-    jdk.jshell \
-    jdk.jstatd \
-    jdk.incubator.foreign \
-    jdk.localedata \
-    jdk.management \
-    jdk.management.agent \
-    jdk.management.jfr \
-    jdk.naming.dns \
-    jdk.naming.rmi \
-    jdk.net \
-    jdk.nio.mapmode \
-    jdk.sctp \
-    jdk.security.auth \
-    jdk.security.jgss \
-    jdk.xml.dom \
-    jdk.zipfs \
-    #
-
-# These modules are included in the interim image which is used to run profiling
-# before building the real images.
-INTERIM_IMAGE_MODULES := java.base java.logging
-
-LANGTOOLS_MODULES := \
-    java.compiler \
-    jdk.compiler \
-    jdk.javadoc \
-    jdk.jdeps \
-    jdk.jshell \
-    #
-
-HOTSPOT_MODULES := \
-    jdk.aot \
-    jdk.hotspot.agent \
-    jdk.internal.vm.ci \
-    jdk.internal.vm.compiler \
-    jdk.internal.vm.compiler.management \
-    #
-
-################################################################################
 # Some platforms don't have the serviceability agent
-
 ifeq ($(INCLUDE_SA), false)
   MODULES_FILTER += jdk.hotspot.agent
 endif
 
-################################################################################
 # Filter out jvmci specific modules if jvmci is disabled
-
 ifeq ($(INCLUDE_JVMCI), false)
   MODULES_FILTER += jdk.internal.vm.ci
 endif
 
-################################################################################
-# Filter out Graal specific modules if Graal is disabled
+# Filter out Graal specific modules
+MODULES_FILTER += jdk.internal.vm.compiler
+MODULES_FILTER += jdk.internal.vm.compiler.management
 
-ifeq ($(INCLUDE_GRAAL), false)
-  MODULES_FILTER += jdk.internal.vm.compiler
-  MODULES_FILTER += jdk.internal.vm.compiler.management
-endif
-
-################################################################################
-# Filter out aot specific modules if aot is disabled
-
-ifeq ($(ENABLE_AOT), false)
-  MODULES_FILTER += jdk.aot
-endif
-
-################################################################################
 # jpackage is only on windows, macosx, and linux
-
 ifeq ($(call isTargetOs, windows macosx linux), false)
-  MODULES_FILTER += jdk.incubator.jpackage
+  MODULES_FILTER += jdk.jpackage
 endif
 
 ################################################################################
@@ -336,7 +180,7 @@ $(MODULE_DEPS_MAKEFILE): $(MODULE_INFOS) \
 	$(RM) $@
 	$(foreach m, $(MODULE_INFOS), \
 	    ( $(PRINTF) "DEPS_$(call GetModuleNameFromModuleInfo, $m) :=" && \
-	      $(NAWK) -v MODULE=$(call GetModuleNameFromModuleInfo, $m) '\
+	      $(AWK) -v MODULE=$(call GetModuleNameFromModuleInfo, $m) '\
 	          BEGIN      { if (MODULE != "java.base") printf(" java.base"); } \
 	          /^ *requires/ { sub(/;/, ""); \
 	                          sub(/requires /, " "); \
@@ -346,10 +190,11 @@ $(MODULE_DEPS_MAKEFILE): $(MODULE_INFOS) \
 	                          sub(/\/\*.*\*\//, ""); \
 	                          gsub(/^ +\*.*/, ""); \
 	                          gsub(/ /, ""); \
+	                          gsub(/\r/, ""); \
 	                          printf(" %s", $$0) } \
 	          END           { printf("\n") }' $m && \
 	      $(PRINTF) "TRANSITIVE_MODULES_$(call GetModuleNameFromModuleInfo, $m) :=" && \
-	      $(NAWK) -v MODULE=$(call GetModuleNameFromModuleInfo, $m) '\
+	      $(AWK) -v MODULE=$(call GetModuleNameFromModuleInfo, $m) '\
 	          BEGIN      { if (MODULE != "java.base") printf(" java.base"); } \
 	          /^ *requires  *transitive/ { \
 	                          sub(/;/, ""); \
@@ -359,6 +204,7 @@ $(MODULE_DEPS_MAKEFILE): $(MODULE_INFOS) \
 	                          sub(/\/\*.*\*\//, ""); \
 	                          gsub(/^ +\*.*/, ""); \
 	                          gsub(/ /, ""); \
+	                          gsub(/\r/, ""); \
 	                          printf(" %s", $$0) } \
 	          END           { printf("\n") }' $m \
 	    ) >> $@ $(NEWLINE))
@@ -406,8 +252,7 @@ FindTransitiveIndirectDepsForModules = \
 # Upgradeable modules are those that are either defined as upgradeable or that
 # require an upradeable module.
 FindAllUpgradeableModules = \
-    $(sort $(filter-out $(MODULES_FILTER), $(UPGRADEABLE_MODULES)))
-
+    $(sort $(filter-out $(MODULES_FILTER), $(UPGRADEABLE_PLATFORM_MODULES)))
 
 ################################################################################
 
@@ -463,7 +308,6 @@ endef
 # * JDK_MODULES
 # * BOOT_MODULES
 # * PLATFORM_MODULES
-# * JRE_TOOL_MODULES
 define ReadImportMetaData
     IMPORTED_MODULES := $$(call FindImportedModules)
     $$(foreach m, $$(IMPORTED_MODULES), \

make/common/NativeCompilation.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -72,10 +72,10 @@ define WriteCompileCommandsFragment
   $(call LogInfo, Creating compile commands fragment for $(notdir $3))
   $(call MakeDir, $(dir $1))
   $(call WriteFile,{ \
-      "directory": "$(strip $2)"$(COMMA) \
-      "file": "$(strip $3)"$(COMMA) \
+      "directory": "$(strip $(call FixPath, $2))"$(COMMA) \
+      "file": "$(strip $(call FixPath, $3))"$(COMMA) \
       "command": "$(strip $(subst $(DQUOTE),\$(DQUOTE),$(subst \,\\,\
-        $(subst $(FIXPATH),,$4))))" \
+        $(subst $(FIXPATH),,$(call FixPath, $4)))))" \
     }$(COMMA), \
     $1)
 endef
@@ -163,7 +163,7 @@ $(eval $(call DefineNativeToolchain, TOOLCHAIN_BUILD_LINK_CXX, \
 ################################################################################
 
 # Extensions of files handled by this macro.
-NATIVE_SOURCE_EXTENSIONS := %.s %.S %.c %.cpp %.cc %.m %.mm
+NATIVE_SOURCE_EXTENSIONS := %.S %.c %.cpp %.cc %.m %.mm
 
 # Replaces native source extensions with the object file extension in a string.
 # Param 1: the string containing source file names with extensions
@@ -175,12 +175,6 @@ $(strip \
 )
 endef
 
-ifeq ($(call isBuildOsEnv, windows.cygwin), true)
-  UNIX_PATH_PREFIX := /cygdrive
-else ifeq ($(call isBuildOsEnv, windows.msys), true)
-  UNIX_PATH_PREFIX :=
-endif
-
 # This pattern is used to transform the output of the microsoft CL compiler
 # into a make syntax dependency file (.d)
 WINDOWS_SHOWINCLUDE_SED_PATTERN := \
@@ -188,7 +182,7 @@ WINDOWS_SHOWINCLUDE_SED_PATTERN := \
     -e 's|Note: including file: *||' \
     -e 's|\r||g' \
     -e 's|\\|/|g' \
-    -e 's|^\([a-zA-Z]\):|$(UNIX_PATH_PREFIX)/\1|g' \
+    -e 's|^\([a-zA-Z]\):|$(WINENV_PREFIX)/\1|g' \
     -e '\|$(TOPDIR)|I !d' \
     -e 's|$$$$| \\|g' \
     #
@@ -237,10 +231,25 @@ ifeq ($(ALLOW_ABSOLUTE_PATHS_IN_OUTPUT)-$(FILE_MACRO_CFLAGS), false-)
         ) \
       )
 
-  # When compiling with relative paths, the deps file comes out with relative
-  # paths.
+  # When compiling with relative paths, the deps file may come out with relative
+  # paths, and that path may start with './'. First remove any leading ./, then
+  # add WORKSPACE_ROOT to any line not starting with /, while allowing for
+  # leading spaces. There may also be multiple entries on the same line, so start
+  # with splitting such lines.
+  # Non GNU sed (BSD on macosx) cannot substitue in literal \n using regex.
+  # Instead use a bash escaped literal newline. To avoid having unmatched quotes
+  # ruin the ability for an editor to properly syntax highlight this file, define
+  # that newline sequence as a separate variable and add the closing quote behind
+  # a comment.
+  sed_newline := \'$$'\n''#'
   define fix-deps-file
-	$(SED) -e 's|^\([ ]*\)|\1$(WORKSPACE_ROOT)|' $1.tmp > $1
+	$(SED) \
+	    -e 's|\([^ ]\) \{1,\}\([^\\:]\)|\1 \\$(sed_newline) \2|g' \
+	    $1.tmp \
+	    | $(SED) \
+	        -e 's|^\([ ]*\)\./|\1|' \
+	        -e '/^[ ]*[^/ ]/s|^\([ ]*\)|\1$(WORKSPACE_ROOT)/|' \
+	        > $1
   endef
 else
   # By default the MakeCommandRelative macro does nothing.
@@ -340,42 +349,36 @@ define SetupCompileNativeFileBody
       $1_FLAGS := $(CFLAGS_CCACHE) $$($1_USE_PCH_FLAGS) $$($1_BASE_CFLAGS) \
           $$($1_OPT_CFLAGS) $$($1_CFLAGS) -c
       $1_COMPILER := $$($$($1_BASE)_CC)
-      $1_DEP_FLAG := $(C_FLAG_DEPS)
     else ifneq ($$(filter %.m, $$($1_FILENAME)), )
       # Compile as an Objective-C file
       $1_FLAGS := -x objective-c $(CFLAGS_CCACHE) $$($1_USE_PCH_FLAGS) \
           $$($1_BASE_CFLAGS) $$($1_OPT_CFLAGS) $$($1_CFLAGS) -c
       $1_COMPILER := $$($$($1_BASE)_CC)
-      $1_DEP_FLAG := $(C_FLAG_DEPS)
-    else ifneq ($$(filter %.s %.S, $$($1_FILENAME)), )
-      # Compile as assembler file
-      $1_FLAGS := $$($1_BASE_ASFLAGS)
+    else ifneq ($$(filter %.S, $$($1_FILENAME)), )
+      # Compile as preprocessed assembler file
+      $1_FLAGS := $(BASIC_ASFLAGS) $$($1_BASE_ASFLAGS)
       $1_COMPILER := $(AS)
-      $1_DEP_FLAG :=
     else ifneq ($$(filter %.cpp %.cc %.mm, $$($1_FILENAME)), )
       # Compile as a C++ or Objective-C++ file
       $1_FLAGS := $(CFLAGS_CCACHE) $$($1_USE_PCH_FLAGS) $$($1_BASE_CXXFLAGS) \
           $$($1_OPT_CXXFLAGS) $$($1_CXXFLAGS) -c
       $1_COMPILER := $$($$($1_BASE)_CXX)
-      $1_DEP_FLAG := $(CXX_FLAG_DEPS)
     else
       $$(error Internal error in NativeCompilation.gmk: no compiler for file $$($1_FILENAME))
     endif
 
-    ifeq ($$(filter %.s %.S, $$($1_FILENAME)), )
-      # And this is the dependency file for this obj file.
-      $1_DEPS_FILE := $$(patsubst %$(OBJ_SUFFIX),%.d,$$($1_OBJ))
-      # The dependency target file lists all dependencies as empty targets to
-      # avoid make error "No rule to make target" for removed files
-      $1_DEPS_TARGETS_FILE := $$(patsubst %$(OBJ_SUFFIX),%.d.targets,$$($1_OBJ))
+    # And this is the dependency file for this obj file.
+    $1_DEPS_FILE := $$(patsubst %$(OBJ_SUFFIX),%.d,$$($1_OBJ))
+    # The dependency target file lists all dependencies as empty targets to
+    # avoid make error "No rule to make target" for removed files
+    $1_DEPS_TARGETS_FILE := $$(patsubst %$(OBJ_SUFFIX),%.d.targets,$$($1_OBJ))
 
-      # Only try to load individual dependency information files if the global
-      # file hasn't been loaded (could happen if make was interrupted).
-      ifneq ($$($$($1_BASE)_DEPS_FILE_LOADED), true)
-        # Include previously generated dependency information. (if it exists)
-        -include $$($1_DEPS_FILE)
-        -include $$($1_DEPS_TARGETS_FILE)
-      endif
+    # Only try to load individual dependency information files if the global
+    # file hasn't been loaded (could happen if make was interrupted).
+    ifneq ($$($$($1_BASE)_DEPS_FILE_LOADED), true)
+      # Include previously generated dependency information. (if it exists)
+      -include $$($1_DEPS_FILE)
+      -include $$($1_DEPS_TARGETS_FILE)
     endif
 
     ifneq ($$(strip $$($1_CFLAGS) $$($1_CXXFLAGS) $$($1_OPTIMIZATION)), )
@@ -396,7 +399,7 @@ define SetupCompileNativeFileBody
 	$$(call MakeDir, $$(@D))
         ifneq ($(TOOLCHAIN_TYPE), microsoft)
 	  $$(call ExecuteWithLog, $$@, $$(call MakeCommandRelative, \
-	      $$($1_COMPILER) $$($1_DEP_FLAG) \
+	      $$($1_COMPILER) $$(GENDEPS_FLAGS) \
 	      $$(addsuffix .tmp, $$($1_DEPS_FILE)) \
 	      $$($1_COMPILE_OPTIONS)))
           ifneq ($$($1_DEPS_FILE), )
@@ -415,15 +418,25 @@ define SetupCompileNativeFileBody
           # Keep as much as possible on one execution line for best performance
           # on Windows. No need to save exit code from compilation since
           # pipefail is always active on Windows.
-	  $$(call ExecuteWithLog, $$@, $$(call MakeCommandRelative, \
-	      $$($1_COMPILER) -showIncludes $$($1_COMPILE_OPTIONS))) \
-	      | $(TR) -d '\r' | $(GREP) -v -e "^Note: including file:" \
-	          -e "^$$($1_FILENAME)$$$$" || test "$$$$?" = "1" ; \
-	  $(ECHO) $$@: \\ > $$($1_DEPS_FILE) ; \
-	  $(SED) $(WINDOWS_SHOWINCLUDE_SED_PATTERN) $$($1_OBJ).log \
-	      | $(SORT) -u >> $$($1_DEPS_FILE) ; \
-	  $(ECHO) >> $$($1_DEPS_FILE) ; \
-	  $(SED) $(DEPENDENCY_TARGET_SED_PATTERN) $$($1_DEPS_FILE) > $$($1_DEPS_TARGETS_FILE)
+          ifeq ($$(filter %.S, $$($1_FILENAME)), )
+	    $$(call ExecuteWithLog, $$@, $$(call MakeCommandRelative, \
+	        $$($1_COMPILER) -showIncludes $$($1_COMPILE_OPTIONS))) \
+	        | $(TR) -d '\r' | $(GREP) -v -e "^Note: including file:" \
+	            -e "^$$($1_FILENAME)$$$$" || test "$$$$?" = "1" ; \
+	    $(ECHO) $$@: \\ > $$($1_DEPS_FILE) ; \
+	    $(SED) $(WINDOWS_SHOWINCLUDE_SED_PATTERN) $$($1_OBJ).log \
+	        | $(SORT) -u >> $$($1_DEPS_FILE) ; \
+	    $(ECHO) >> $$($1_DEPS_FILE) ; \
+	    $(SED) $(DEPENDENCY_TARGET_SED_PATTERN) $$($1_DEPS_FILE) > $$($1_DEPS_TARGETS_FILE)
+          else
+            # For assembler calls just create empty dependency lists
+	    $$(call ExecuteWithLog, $$@, $$(call MakeCommandRelative, \
+	        $$($1_COMPILER) $$($1_FLAGS) \
+	        $(CC_OUT_OPTION)$$($1_OBJ) -Ta $$($1_SRC_FILE))) \
+	        | $(TR) -d '\r' | $(GREP) -v -e "Assembling:" || test "$$$$?" = "1" ; \
+	    $(ECHO) > $$($1_DEPS_FILE) ; \
+	    $(ECHO) > $$($1_DEPS_TARGETS_FILE)
+          endif
         endif
   endif
 endef
@@ -457,7 +470,7 @@ endef
 #   EXTRA_OBJECT_FILES List of extra object files to include when linking
 #   EXTRA_DEPS List of extra dependencies to be added to each compiled file
 #   VERSIONINFO_RESOURCE Input file for RC. Setting this implies that RC will be run
-#   RC_FLAGS flags for RC.
+#   RCFLAGS flags for RC.
 #   EMBED_MANIFEST if true, embed manifest on Windows.
 #   MAPFILE mapfile
 #   USE_MAPFILE_FOR_SYMBOLS if true and this is a STATIC_BUILD, just copy the
@@ -527,7 +540,7 @@ define SetupNativeCompilationBody
   ifeq ($$($1_TYPE), EXECUTABLE)
     $1_PREFIX :=
     ifeq ($$($1_SUFFIX), )
-      $1_SUFFIX := $(EXE_SUFFIX)
+      $1_SUFFIX := $(EXECUTABLE_SUFFIX)
     endif
   else
     $1_PREFIX := $(LIBRARY_PREFIX)
@@ -805,13 +818,15 @@ define SetupNativeCompilationBody
         -include $$($1_PCH_DEPS_TARGETS_FILE)
 
         $1_PCH_COMMAND := $$($1_CC) $$($1_CFLAGS) $$($1_EXTRA_CFLAGS) $$($1_SYSROOT_CFLAGS) \
-            $$($1_OPT_CFLAGS) -x c++-header -c $(C_FLAG_DEPS) $$($1_PCH_DEPS_FILE)
+            $$($1_OPT_CFLAGS) -x c++-header -c $(GENDEPS_FLAGS) \
+            $$(addsuffix .tmp, $$($1_PCH_DEPS_FILE))
 
         $$($1_PCH_FILE): $$($1_PRECOMPILED_HEADER) $$($1_COMPILE_VARDEPS_FILE)
 		$$(call LogInfo, Generating precompiled header)
 		$$(call MakeDir, $$(@D))
 		$$(call ExecuteWithLog, $$@, $$(call MakeCommandRelative, \
 		    $$($1_PCH_COMMAND) $$< -o $$@))
+		$$(call fix-deps-file, $$($1_PCH_DEPS_FILE))
 		$(SED) $(DEPENDENCY_TARGET_SED_PATTERN) $$($1_PCH_DEPS_FILE) \
 		    > $$($1_PCH_DEPS_TARGETS_FILE)
 
@@ -860,7 +875,7 @@ define SetupNativeCompilationBody
       -include $$($1_RES_DEPS_FILE)
       -include $$($1_RES_DEPS_TARGETS_FILE)
 
-      $1_RES_VARDEPS := $$($1_RC) $$($1_RC_FLAGS)
+      $1_RES_VARDEPS := $$($1_RC) $$($1_RCFLAGS)
       $1_RES_VARDEPS_FILE := $$(call DependOnVariable, $1_RES_VARDEPS, \
           $$($1_RES).vardeps)
 
@@ -868,7 +883,7 @@ define SetupNativeCompilationBody
 		$$(call LogInfo, Compiling resource $$(notdir $$($1_VERSIONINFO_RESOURCE)) (for $$($1_BASENAME)))
 		$$(call MakeDir, $$(@D) $$($1_OBJECT_DIR))
 		$$(call ExecuteWithLog, $$@, $$(call MakeCommandRelative, \
-		    $$($1_RC) $$($1_RC_FLAGS) $$($1_SYSROOT_CFLAGS) $(CC_OUT_OPTION)$$@ \
+		    $$($1_RC) $$($1_RCFLAGS) $$($1_SYSROOT_CFLAGS) $(CC_OUT_OPTION)$$@ \
 		    $$($1_VERSIONINFO_RESOURCE) 2>&1 ))
                 # Windows RC compiler does not support -showIncludes, so we mis-use CL
                 # for this. Filter out RC specific arguments that are unknown to CL.
@@ -876,7 +891,7 @@ define SetupNativeCompilationBody
                 # includes to stderr so need to redirect it to hide the output from the
                 # main log.
 		$$(call ExecuteWithLog, $$($1_RES_DEPS_FILE).obj, \
-		    $$($1_CC) $$(filter-out -l%, $$($1_RC_FLAGS)) \
+		    $$($1_CC) $$(filter-out -l%, $$($1_RCFLAGS)) \
 		        $$($1_SYSROOT_CFLAGS) -showIncludes -nologo -TC \
 		        $(CC_OUT_OPTION)$$($1_RES_DEPS_FILE).obj -P -Fi$$($1_RES_DEPS_FILE).pp \
 		        $$($1_VERSIONINFO_RESOURCE)) 2>&1 \
@@ -963,6 +978,13 @@ define SetupNativeCompilationBody
               $(CD) $$($1_SYMBOLS_DIR) && \
                   $$($1_OBJCOPY) --add-gnu-debuglink=$$($1_DEBUGINFO_FILES) $$($1_TARGET)
 
+        else ifeq ($(call isTargetOs, aix), true)
+          # AIX does not provide the equivalent of OBJCOPY to extract debug symbols,
+          # so we copy the compiled object with symbols to the .debuginfo file, which
+          # happens prior to the STRIP_CMD on the original target object file.
+          $1_DEBUGINFO_FILES := $$($1_SYMBOLS_DIR)/$$($1_NOSUFFIX).debuginfo
+          $1_CREATE_DEBUGINFO_CMDS := $(CP) $$($1_TARGET) $$($1_DEBUGINFO_FILES)
+
         else ifeq ($(call isTargetOs, macosx), true)
           $1_DEBUGINFO_FILES := \
               $$($1_SYMBOLS_DIR)/$$($1_BASENAME).dSYM/Contents/Info.plist \
@@ -1146,6 +1168,9 @@ define SetupNativeCompilationBody
 		          test "$$$$?" = "1" ; \
 		  $$($1_CREATE_DEBUGINFO_CMDS)
 		  $$($1_STRIP_CMD)
+                 ifeq ($(call isBuildOsEnv, windows.wsl2), true)
+		    $$(CHMOD) +x $$($1_TARGET)
+                 endif
                 else
 		  $$(call ExecuteWithLog, $$($1_OBJECT_DIR)/$$($1_SAFE_NAME)_link, \
 		      $$(if $$($1_LINK_OBJS_RELATIVE), $$(CD) $$(OUTPUTDIR) ; ) \
@@ -1163,7 +1188,7 @@ define SetupNativeCompilationBody
                 # This only works if the openjdk_codesign identity is present on the system. Let
                 # silently fail otherwise.
                 ifneq ($(CODESIGN), )
-		  $(CODESIGN) -s "$(MACOSX_CODESIGN_IDENTITY)" --timestamp --options runtime \
+		  $(CODESIGN) -f -s "$(MACOSX_CODESIGN_IDENTITY)" --timestamp --options runtime \
 		      --entitlements $$(call GetEntitlementsFile, $$@) $$@
                 endif
   endif

make/common/TestFilesCompilation.gmk

@@ -62,7 +62,11 @@ define SetupTestFilesCompilationBody
     $1_OUTPUT_SUBDIR := lib
     $1_BASE_CFLAGS := $(CFLAGS_JDKLIB)
     $1_BASE_CXXFLAGS := $(CXXFLAGS_JDKLIB)
-    $1_LDFLAGS := $(LDFLAGS_JDKLIB) $$(call SET_SHARED_LIBRARY_ORIGIN)
+    ifeq ($(call isTargetOs, windows), false)
+	$1_LDFLAGS := $(LDFLAGS_JDKLIB) $$(call SET_SHARED_LIBRARY_ORIGIN) -pthread
+    else
+	$1_LDFLAGS := $(LDFLAGS_JDKLIB) $$(call SET_SHARED_LIBRARY_ORIGIN)
+    endif
     $1_COMPILATION_TYPE := LIBRARY
   else ifeq ($$($1_TYPE), PROGRAM)
     $1_PREFIX = exe
@@ -77,7 +81,7 @@ define SetupTestFilesCompilationBody
 
   # Locate all files with the matching prefix
   $1_FILE_LIST := \
-      $$(call FindFiles, $$($1_SOURCE_DIRS), $$($1_PREFIX)*.c $$($1_PREFIX)*.cpp)
+      $$(call FindFiles, $$($1_SOURCE_DIRS), $$($1_PREFIX)*.c $$($1_PREFIX)*.cpp $$($1_PREFIX)*.m)
 
   $1_EXCLUDE_PATTERN := $$(addprefix %/, $$($1_EXCLUDE))
   $1_FILTERED_FILE_LIST := $$(filter-out $$($1_EXCLUDE_PATTERN), $$($1_FILE_LIST))

make/common/TextFileProcessing.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2013, 2020, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -177,7 +177,7 @@ define SetupTextFileProcessingBody
     $1_INCLUDES_PARTIAL_AWK := $$(subst $$(SPACE);,,$$(subst $$(SPACE)=>$$(SPACE),"$$(RIGHT_PAREN)$$(RIGHT_PAREN) \
         { include$$(LEFT_PAREN)",$$(subst $$(SPACE);$$(SPACE),"$$(RIGHT_PAREN) } \
         else if $$(LEFT_PAREN)matches$$(LEFT_PAREN)",$$(strip $$($1_INCLUDES)))))
-    $1_INCLUDES_COMMAND_LINE := $(NAWK) '$$($1_INCLUDES_HEADER_AWK) \
+    $1_INCLUDES_COMMAND_LINE := $(AWK) '$$($1_INCLUDES_HEADER_AWK) \
         { if (matches("$$($1_INCLUDES_PARTIAL_AWK)") } else print }'
   else
     # We don't have any includes, just pipe the file through cat.

make/common/Utils.gmk

@@ -278,7 +278,7 @@ FindExecutableDirForModule = \
 # param 1 : A space separated list of classpath entries
 # The surrounding strip is needed to keep additional whitespace out
 PathList = \
-  "$(subst $(SPACE),$(PATH_SEP),$(strip $(subst $(DQUOTE),,$1)))"
+  "$(subst $(SPACE),:,$(strip $(subst $(DQUOTE),,$1)))"
 
 ################################################################################
 # Check if a specified hotspot variant is being built, or at least one of a

make/common/modules/GensrcCommonLangtools.gmk

@@ -85,14 +85,16 @@ define SetupCompileProperties
       $$(addprefix _SPACE_, $$(PROPJAVAS)))))
 
   # Now setup the rule for the generation of the resource bundles.
-  $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/_the_props: $$(PROPSOURCES)
+  PROPS_BASE := $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/_the_props
+  $$(PROPS_BASE): $$(PROPSOURCES)
 	$$(call MakeDir, $$(@D) $$(PROPDIRS))
 	$(FIND) $$(@D) -name "*.java" -a ! -name "*Properties.java" $(FIND_DELETE)
 	$(ECHO) Compiling $$(words $$(PROPSOURCES)) properties into resource bundles for $(MODULE)
-	$(TOOL_COMPILEPROPS_CMD) $$(PROPCMDLINE)
+	$$(call ExecuteWithLog, $$(PROPS_BASE)_exec, \
+	    $(TOOL_COMPILEPROPS_CMD) $$(PROPCMDLINE))
 	$(TOUCH) $$@
 
-  $$(strip $1) += $(SUPPORT_OUTPUTDIR)/gensrc/$(MODULE)/_the_props
+  $$(strip $1) += $$(PROPS_BASE)
 endef
 
 ################################################################################

make/common/modules/LauncherCommon.gmk

@@ -48,7 +48,6 @@ LAUNCHER_CFLAGS += -I$(TOPDIR)/src/java.base/share/native/launcher \
     -I$(TOPDIR)/src/java.base/$(OPENJDK_TARGET_OS_TYPE)/native/libjli \
     -I$(TOPDIR)/src/java.base/$(OPENJDK_TARGET_OS)/native/libjli \
     #
-GLOBAL_VERSION_INFO_RESOURCE := $(TOPDIR)/src/java.base/windows/native/common/version.rc
 MACOSX_PLIST_DIR := $(TOPDIR)/src/java.base/macosx/native/launcher
 JAVA_MANIFEST := $(TOPDIR)/src/java.base/windows/native/launcher/java.manifest
 
@@ -71,7 +70,7 @@ JAVA_MANIFEST := $(TOPDIR)/src/java.base/windows/native/launcher/java.manifest
 #     compile time defines exceeding Visual Studio 2013 limitations.
 # CFLAGS   Additional CFLAGS
 # CFLAGS_windows   Additional CFLAGS_windows
-# EXTRA_RC_FLAGS   Additional EXTRA_RC_FLAGS
+# EXTRA_RCFLAGS   Additional EXTRA_RCFLAGS
 # MACOSX_PRIVILEGED   On macosx, allow to access other processes
 # OPTIMIZATION   Override default optimization level (LOW)
 # OUTPUT_DIR   Override default output directory
@@ -103,12 +102,22 @@ define SetupBuildLauncherBody
 
   ifeq ($(call isTargetOs, macosx), true)
     ifeq ($$($1_MACOSX_PRIVILEGED), true)
-      $1_PLIST_FILE := Info-privileged.plist
-    else
-      $1_PLIST_FILE := Info-cmdline.plist
+      $1_PLIST_EXTRA := <key>SecTaskAccess</key><string>allowed</string>
     endif
 
-    $1_LDFLAGS += -sectcreate __TEXT __info_plist $(MACOSX_PLIST_DIR)/$$($1_PLIST_FILE)
+    $1_PLIST_FILE := $$(SUPPORT_OUTPUTDIR)/native/$$(MODULE)/$1/Info.plist
+
+    $$(eval $$(call SetupTextFileProcessing, BUILD_PLIST_$1, \
+        SOURCE_FILES := $(TOPDIR)/make/data/bundle/cmdline-Info.plist, \
+        OUTPUT_FILE := $$($1_PLIST_FILE), \
+        REPLACEMENTS := \
+            @@ID@@ => $(MACOSX_BUNDLE_ID_BASE).$1 ; \
+            @@VERSION@@ => $(VERSION_NUMBER) ; \
+            @@BUILD_VERSION@@ => $(MACOSX_BUNDLE_BUILD_VERSION) ; \
+            @@EXTRA@@ => $$($1_PLIST_EXTRA), \
+    ))
+
+    $1_LDFLAGS += -sectcreate __TEXT __info_plist $$($1_PLIST_FILE)
 
     ifeq ($(STATIC_BUILD), true)
       $1_LDFLAGS += -exported_symbols_list \
@@ -160,7 +169,7 @@ define SetupBuildLauncherBody
           $(SUPPORT_OUTPUTDIR)/native/java.base/libjava/java.lib, \
       OUTPUT_DIR := $$($1_OUTPUT_DIR), \
       VERSIONINFO_RESOURCE := $$($1_VERSION_INFO_RESOURCE), \
-      EXTRA_RC_FLAGS := $$($1_EXTRA_RC_FLAGS), \
+      EXTRA_RCFLAGS := $$($1_EXTRA_RCFLAGS), \
       MANIFEST := $(JAVA_MANIFEST), \
       MANIFEST_VERSION := $(VERSION_NUMBER_FOUR_POSITIONS), \
   ))
@@ -168,6 +177,8 @@ define SetupBuildLauncherBody
   $1 += $$(BUILD_LAUNCHER_$1)
   TARGETS += $$($1)
 
+  $$(BUILD_LAUNCHER_$1): $$(BUILD_PLIST_$1)
+
   ifeq ($(call isTargetOs, aix), true)
     $$(BUILD_LAUNCHER_$1): $(call FindStaticLib, java.base, jli_static)
   endif
@@ -176,6 +187,10 @@ define SetupBuildLauncherBody
     $$(BUILD_LAUNCHER_$1): $(call FindStaticLib, java.base, java, /libjava) \
         $$($1_WINDOWS_JLI_LIB)
   endif
+
+  ifeq ($(call isTargetOs, macosx), true)
+    $$(BUILD_LAUNCHER_$1): $$($1_PLIST_FILE)
+  endif
 endef
 
 ################################################################################

make/common/modules/LibCommon.gmk

@@ -27,8 +27,6 @@ include JdkNativeCompilation.gmk
 
 ################################################################################
 
-GLOBAL_VERSION_INFO_RESOURCE := $(TOPDIR)/src/java.base/windows/native/common/version.rc
-
 # Absolute paths to lib files on windows for use in LIBS. Should figure out a more
 # elegant solution to this.
 WIN_JAVA_LIB := $(SUPPORT_OUTPUTDIR)/native/java.base/libjava/java.lib

make/conf/branding.conf

@@ -0,0 +1,38 @@
+#
+# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+LAUNCHER_NAME=openjdk
+PRODUCT_NAME=OpenJDK
+PRODUCT_SUFFIX="Runtime Environment"
+JDK_RC_PLATFORM_NAME=Platform
+COMPANY_NAME=N/A
+HOTSPOT_VM_DISTRO="OpenJDK"
+VENDOR_URL=https://openjdk.java.net/
+VENDOR_URL_BUG=https://bugreport.java.com/bugreport/
+VENDOR_URL_VM_BUG=https://bugreport.java.com/bugreport/crash.jsp
+
+# Might need better names for these
+MACOSX_BUNDLE_NAME_BASE="OpenJDK"
+MACOSX_BUNDLE_ID_BASE="net.java.openjdk"

make/conf/build-module-sets.conf

@@ -0,0 +1,49 @@
+#
+# Copyright (c) 2014, 2021, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+################################################################################
+# Module sets needed by the build system
+
+# These modules are included in the interim image which is used to run profiling
+# before building the real images.
+INTERIM_IMAGE_MODULES= \
+    java.base \
+    java.logging \
+    #
+
+# These targets require buildtools-langtools to process for gensrc
+LANGTOOLS_MODULES= \
+    java.compiler \
+    jdk.compiler \
+    jdk.javadoc \
+    jdk.jdeps \
+    jdk.jshell \
+    #
+
+# These models require buildtools-hotspot to process for gensrc
+HOTSPOT_MODULES= \
+    jdk.hotspot.agent \
+    jdk.internal.vm.ci \
+    #

make/conf/docs-modules.conf

@@ -0,0 +1,72 @@
+#
+# Copyright (c) 2014, 2020, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+################################################################################
+# Module sets needed to build docs.
+#
+# DOCS_MODULES defines the root modules for javadoc generation.
+# All of their `require transitive` modules directly and indirectly will be included.
+DOCS_MODULES= \
+    java.se \
+    java.smartcardio \
+    jdk.accessibility \
+    jdk.attach \
+    jdk.charsets \
+    jdk.compiler \
+    jdk.crypto.cryptoki \
+    jdk.crypto.ec \
+    jdk.dynalink \
+    jdk.editpad \
+    jdk.hotspot.agent \
+    jdk.httpserver \
+    jdk.jpackage \
+    jdk.incubator.vector \
+    jdk.jartool \
+    jdk.javadoc \
+    jdk.jcmd \
+    jdk.jconsole \
+    jdk.jdeps \
+    jdk.jdi \
+    jdk.jdwp.agent \
+    jdk.jfr \
+    jdk.jlink \
+    jdk.jsobject \
+    jdk.jshell \
+    jdk.jstatd \
+    jdk.incubator.foreign \
+    jdk.localedata \
+    jdk.management \
+    jdk.management.agent \
+    jdk.management.jfr \
+    jdk.naming.dns \
+    jdk.naming.rmi \
+    jdk.net \
+    jdk.nio.mapmode \
+    jdk.sctp \
+    jdk.security.auth \
+    jdk.security.jgss \
+    jdk.xml.dom \
+    jdk.zipfs \
+    #

make/conf/javadoc.conf

@@ -0,0 +1,31 @@
+# Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+# URLs
+JAVADOC_BASE_URL=https://docs.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_NUMBER)&id=homepage
+BUG_SUBMIT_URL=https://bugreport.java.com/bugreport/
+COPYRIGHT_URL=legal/copyright.html
+LICENSE_URL=https://www.oracle.com/java/javase/terms/license/java$(VERSION_NUMBER)speclicense.html
+REDISTRIBUTION_URL=https://www.oracle.com/technetwork/java/redist-137594.html
+OTHER_JDK_VERSIONS_URL=https://docs.oracle.com/en/java/javase/index.html

make/conf/jib-profiles.js

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2021, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -205,13 +205,13 @@ var getJibProfiles = function (input) {
 
     // Exclude list to use when Jib creates a source bundle
     data.src_bundle_excludes = [
-        "build", "{,**/}webrev*", "{,**/}.hg", "{,**/}JTwork", "{,**/}JTreport",
+        "build", "{,**/}webrev*", "{,**/}.hg", "{,**/}JTwork*", "{,**/}JTreport*",
         "{,**/}.git"
     ];
     // Include list to use when creating a minimal jib source bundle which
     // contains just the jib configuration files.
     data.conf_bundle_includes = [
-        "make/autoconf/version-numbers",
+        "make/conf/version-numbers.conf",
     ];
 
     // Define some common values
@@ -239,8 +239,8 @@ var getJibProfilesCommon = function (input, data) {
 
     // List of the main profile names used for iteration
     common.main_profile_names = [
-        "linux-x64", "linux-x86", "macosx-x64",
-        "windows-x64", "windows-x86",
+        "linux-x64", "linux-x86", "macosx-x64", "macosx-aarch64",
+        "windows-x64", "windows-x86", "windows-aarch64",
         "linux-aarch64", "linux-arm32", "linux-ppc64le", "linux-s390x"
     ];
 
@@ -254,6 +254,13 @@ var getJibProfilesCommon = function (input, data) {
             "--disable-jvm-feature-shenandoahgc",
             versionArgs(input, common))
     };
+    // Extra settings for release profiles
+    common.release_profile_base = {
+        configure_args: [
+            "--enable-reproducible-build",
+            "--with-source-date=current",
+        ],
+    };
     // Extra settings for debug profiles
     common.debug_suffix = "-debug";
     common.debug_profile_base = {
@@ -266,6 +273,12 @@ var getJibProfilesCommon = function (input, data) {
         configure_args: ["--with-debug-level=slowdebug"],
         labels: "slowdebug"
     };
+    // Extra settings for optimized profiles
+    common.optimized_suffix = "-optimized";
+    common.optimized_profile_base = {
+        configure_args: ["--with-debug-level=optimized"],
+        labels: "optimized",
+    };
     // Extra settings for openjdk only profiles
     common.open_suffix = "-open";
     common.open_profile_base = {
@@ -381,8 +394,13 @@ var getJibProfilesCommon = function (input, data) {
         };
     };
 
-    common.boot_jdk_version = "14";
-    common.boot_jdk_build_number = "36";
+    if (input.build_os == 'macosx' && input.build_cpu == 'aarch64') {
+        common.boot_jdk_version = "17";
+        common.boot_jdk_build_number = "19";
+    } else {
+        common.boot_jdk_version = "16";
+        common.boot_jdk_build_number = "36";
+    }
     common.boot_jdk_home = input.get("boot_jdk", "install_path") + "/jdk-"
         + common.boot_jdk_version
         + (input.build_os == "macosx" ? ".jdk/Contents/Home" : "");
@@ -404,12 +422,13 @@ var getJibProfilesProfiles = function (input, common, data) {
         "linux-x64": {
             target_os: "linux",
             target_cpu: "x64",
-            dependencies: ["devkit", "gtest", "graphviz", "pandoc", "graalunit_lib"],
-            configure_args: concat(common.configure_args_64bit,
-                "--enable-full-docs", "--with-zlib=system",
+            dependencies: ["devkit", "gtest", "build_devkit", "graphviz", "pandoc"],
+            configure_args: concat(
+                (input.build_cpu == "x64" ? common.configure_args_64bit
+                 : "--openjdk-target=x86_64-linux-gnu"),
+                "--with-zlib=system", "--disable-dtrace",
                 (isWsl(input) ? [ "--host=x86_64-unknown-linux-gnu",
                     "--build=x86_64-unknown-linux-gnu" ] : [])),
-            default_make_targets: ["docs-bundles"],
         },
 
         "linux-x86": {
@@ -424,18 +443,27 @@ var getJibProfilesProfiles = function (input, common, data) {
         "macosx-x64": {
             target_os: "macosx",
             target_cpu: "x64",
-            dependencies: ["devkit", "gtest", "pandoc", "graalunit_lib"],
+            dependencies: ["devkit", "gtest", "pandoc"],
             configure_args: concat(common.configure_args_64bit, "--with-zlib=system",
-                "--with-macosx-version-max=10.9.0",
+                "--with-macosx-version-max=10.12.00",
+                "--enable-compatible-cds-alignment",
                 // Use system SetFile instead of the one in the devkit as the
                 // devkit one may not work on Catalina.
                 "SETFILE=/usr/bin/SetFile"),
         },
 
+        "macosx-aarch64": {
+            target_os: "macosx",
+            target_cpu: "aarch64",
+            dependencies: ["devkit", "gtest"],
+            configure_args: concat(common.configure_args_64bit, "--with-zlib=system",
+                "--with-macosx-version-max=11.00.00"),
+        },
+
         "windows-x64": {
             target_os: "windows",
             target_cpu: "x64",
-            dependencies: ["devkit", "gtest", "pandoc", "graalunit_lib"],
+            dependencies: ["devkit", "gtest", "pandoc"],
             configure_args: concat(common.configure_args_64bit),
         },
 
@@ -447,6 +475,15 @@ var getJibProfilesProfiles = function (input, common, data) {
             configure_args: concat(common.configure_args_32bit),
         },
 
+        "windows-aarch64": {
+            target_os: "windows",
+            target_cpu: "aarch64",
+            dependencies: ["devkit", "gtest", "build_devkit"],
+            configure_args: [
+                "--openjdk-target=aarch64-unknown-cygwin",
+            ],
+        },
+
         "linux-aarch64": {
             target_os: "linux",
             target_cpu: "aarch64",
@@ -454,9 +491,7 @@ var getJibProfilesProfiles = function (input, common, data) {
             dependencies: ["devkit", "gtest", "build_devkit", "pandoc"],
             configure_args: [
                 "--openjdk-target=aarch64-linux-gnu",
-		"--disable-jvm-feature-jvmci",
-		"--disable-jvm-feature-graal",
-		"--disable-jvm-feature-aot",
+		"--enable-compatible-cds-alignment",
             ],
         },
 
@@ -511,6 +546,13 @@ var getJibProfilesProfiles = function (input, common, data) {
         profiles[debugName] = concatObjects(profiles[name],
                                             common.slowdebug_profile_base);
     });
+    // Generate optimized versions of all the main profiles
+    common.main_profile_names.forEach(function (name) {
+        var optName = name + common.optimized_suffix;
+        profiles[optName] = concatObjects(profiles[name],
+                                          common.optimized_profile_base);
+        profiles[optName].default_make_targets = [ "hotspot" ];
+    });
     // Generate testmake profiles for the main profile of each build host
     // platform. This profile only runs the makefile tests.
     // Ant is needed to run the idea project generator test.
@@ -528,7 +570,7 @@ var getJibProfilesProfiles = function (input, common, data) {
         });
 
     // Generate -gcov profiles
-    [ "linux-aarch64", "linux-x64", "macosx-x64" ].forEach(function (name) {
+    [ "linux-aarch64", "linux-x64", "macosx-x64", "macosx-aarch64" ].forEach(function (name) {
         var gcovName = name + "-gcov";
         profiles[gcovName] = clone(profiles[name]);
         profiles[gcovName].default_make_targets = ["product-bundles", "test-bundles"];
@@ -617,7 +659,7 @@ var getJibProfilesProfiles = function (input, common, data) {
         });
 
     // JCov profiles build JCov-instrumented JDK image based on images provided through dependencies.
-    [ "linux-aarch64", "linux-x64", "macosx-x64", "windows-x64" ]
+    [ "linux-aarch64", "linux-x64", "macosx-x64", "macosx-aarch64", "windows-x64" ]
         .forEach(function (name) {
             var jcovName = name + "-jcov";
             profiles[jcovName] = clone(common.main_profile_base);
@@ -630,11 +672,7 @@ var getJibProfilesProfiles = function (input, common, data) {
                 ["--with-jcov-input-jdk=" + input.get(name + ".jdk", "home_path")]);
         });
 
-    //
     // Define artifacts for profiles
-    //
-    // Macosx bundles are named osx
-    // tar.gz.
     var artifactData = {
         "linux-x64": {
             platform: "linux-x64",
@@ -643,9 +681,13 @@ var getJibProfilesProfiles = function (input, common, data) {
             platform: "linux-x86",
         },
         "macosx-x64": {
-            platform: "osx-x64",
+            platform: "macos-x64",
             jdk_subdir: "jdk-" + data.version +  ".jdk/Contents/Home",
         },
+        "macosx-aarch64": {
+            platform: "macos-aarch64",
+            jdk_subdir: "jdk-" + data.version + ".jdk/Contents/Home",
+        },
         "windows-x64": {
             platform: "windows-x64",
             jdk_suffix: "zip",
@@ -654,6 +696,10 @@ var getJibProfilesProfiles = function (input, common, data) {
             platform: "windows-x86",
             jdk_suffix: "zip",
         },
+        "windows-aarch64": {
+            platform: "windows-aarch64",
+            jdk_suffix: "zip",
+        },
        "linux-aarch64": {
             platform: "linux-aarch64",
         },
@@ -680,20 +726,50 @@ var getJibProfilesProfiles = function (input, common, data) {
             common.debug_profile_artifacts(artifactData[name]));
     });
 
-    profilesArtifacts = {
-        "linux-x64": {
+    buildJdkDep = input.build_os + "-" + input.build_cpu + ".jdk";
+    docsProfiles = {
+        "docs": {
+            target_os: input.build_os,
+            target_cpu: input.build_cpu,
+            dependencies: [
+                "boot_jdk", "devkit", "graphviz", "pandoc", buildJdkDep,
+            ],
+            configure_args: concat(
+                "--enable-full-docs",
+                versionArgs(input, common),
+                "--with-build-jdk=" + input.get(buildJdkDep, "home_path"),
+                // Provide an explicit JDK for the docs-reference target to
+                // mimic the running conditions of when it's run for real as
+                // closely as possible.
+                "--with-docs-reference-jdk=" + input.get(buildJdkDep, "home_path")
+            ),
+            default_make_targets: ["all-docs-bundles"],
             artifacts: {
                 doc_api_spec: {
-                    local: "bundles/\\(jdk.*doc-api-spec.tar.gz\\)",
+                    local: "bundles/\\(jdk-" + data.version + ".*doc-api-spec.tar.gz\\)",
                     remote: [
                         "bundles/common/jdk-" + data.version + "_doc-api-spec.tar.gz",
                         "bundles/common/\\1"
                     ],
                 },
+                javase_doc_api_spec: {
+                    local: "bundles/\\(javase-" + data.version + ".*doc-api-spec.tar.gz\\)",
+                    remote: [
+                        "bundles/common/javase-" + data.version + "_doc-api-spec.tar.gz",
+                        "bundles/common/\\1"
+                    ],
+                },
+                reference_doc_api_spec: {
+                    local: "bundles/\\(jdk-reference-" + data.version + ".*doc-api-spec.tar.gz\\)",
+                    remote: [
+                        "bundles/common/jdk-reference-" + data.version + "_doc-api-spec.tar.gz",
+                        "bundles/common/\\1"
+                    ],
+                },
             }
         }
     };
-    profiles = concatObjects(profiles, profilesArtifacts);
+    profiles = concatObjects(profiles, docsProfiles);
 
     // Generate open only profiles for all the main and debug profiles.
     // Rewrite artifact remote paths by adding "openjdk/GPL".
@@ -771,8 +847,15 @@ var getJibProfilesProfiles = function (input, common, data) {
         });
     });
 
+    // After creating all derived profiles, we can add the release profile base
+    // to the main profiles
+    common.main_profile_names.forEach(function (name) {
+        profiles[name] = concatObjects(profiles[name],
+            common.release_profile_base);
+    });
+
     // Artifacts of JCov profiles
-    [ "linux-aarch64", "linux-x64", "macosx-x64", "windows-x64" ]
+    [ "linux-aarch64", "linux-x64", "macosx-x64", "macosx-aarch64", "windows-x64" ]
         .forEach(function (name) {
             var o = artifactData[name]
             var jdk_subdir = (o.jdk_subdir != null ? o.jdk_subdir : "jdk-" + data.version);
@@ -792,7 +875,7 @@ var getJibProfilesProfiles = function (input, common, data) {
         });
 
     // Artifacts of gcov (native-code-coverage) profiles
-    [ "linux-aarch64", "linux-x64", "macosx-x64" ].forEach(function (name) {
+    [ "linux-aarch64", "linux-x64", "macosx-x64", "macosx-aarch64" ].forEach(function (name) {
         var o = artifactData[name]
         var pf = o.platform
         var jdk_subdir = (o.jdk_subdir != null ? o.jdk_subdir : "jdk-" + data.version);
@@ -904,8 +987,11 @@ var getJibProfilesProfiles = function (input, common, data) {
     // This gives us a guaranteed working version of lldb for the jtreg failure handler.
     if (input.build_os == "macosx") {
         macosxRunTestExtra = {
-            environment_path: input.get("devkit", "install_path")
-                + "/Xcode.app/Contents/Developer/usr/bin"
+            dependencies: [ "lldb" ],
+            environment_path: [
+                input.get("gnumake", "install_path") + "/bin",
+                input.get("lldb", "install_path") + "/Xcode.app/Contents/Developer/usr/bin",
+            ],
         };
         profiles["run-test"] = concatObjects(profiles["run-test"], macosxRunTestExtra);
         profiles["run-test-prebuilt"] = concatObjects(profiles["run-test-prebuilt"], macosxRunTestExtra);
@@ -932,9 +1018,9 @@ var getJibProfilesProfiles = function (input, common, data) {
     // test tasks. Care must however be taken not to polute that work dir by
     // setting the appropriate make variables to control output directories.
     //
-    // Use the existance of the top level README as indication of if this is
+    // Use the existance of the top level README.md as indication of if this is
     // the full source or just src.conf.
-    if (!new java.io.File(__DIR__, "../../README").exists()) {
+    if (!new java.io.File(__DIR__, "../../README.md").exists()) {
         var runTestPrebuiltSrcFullExtra = {
             dependencies: "src.full",
             work_dir: input.get("src.full", "install_path"),
@@ -959,10 +1045,10 @@ var getJibProfilesProfiles = function (input, common, data) {
 var getJibProfilesDependencies = function (input, common) {
 
     var devkit_platform_revisions = {
-        linux_x64: "gcc9.2.0-OL6.4+1.0",
-        macosx_x64: "Xcode10.1-MacOSX10.14+1.0",
-        windows_x64: "VS2019-16.5.3+1.0",
-        linux_aarch64: "gcc9.2.0-OL7.6+1.0",
+        linux_x64: "gcc10.3.0-OL6.4+1.0",
+        macosx: "Xcode12.4+1.0",
+        windows_x64: "VS2019-16.9.3+1.0",
+        linux_aarch64: "gcc10.3.0-OL7.6+1.0",
         linux_arm: "gcc8.2.0-Fedora27+1.0",
         linux_ppc64le: "gcc8.2.0-Fedora27+1.0",
         linux_s390x: "gcc8.2.0-Fedora27+1.0"
@@ -971,9 +1057,13 @@ var getJibProfilesDependencies = function (input, common) {
     var devkit_platform = (input.target_cpu == "x86"
         ? input.target_os + "_x64"
         : input.target_platform);
-
+    if (input.target_platform == "windows_aarch64") {
+        devkit_platform = "windows_x64";
+    } else if (input.target_os == "macosx") {
+        devkit_platform = "macosx";
+    }
     var devkit_cross_prefix = "";
-    if (!(input.target_os == "windows" && isWsl(input))) {
+    if (!(input.target_os == "windows")) {
         if (input.build_platform != input.target_platform
            && input.build_platform != devkit_platform) {
             devkit_cross_prefix = input.build_platform + "-to-";
@@ -989,33 +1079,21 @@ var getJibProfilesDependencies = function (input, common) {
         boot_jdk_platform = "windows-" + input.build_cpu;
         boot_jdk_ext = ".zip";
     }
+    var boot_jdk = {
+        server: "jpg",
+        product: "jdk",
+        version: common.boot_jdk_version,
+        build_number: common.boot_jdk_build_number,
+        file: "bundles/" + boot_jdk_platform + "/jdk-" + common.boot_jdk_version + "_"
+            + boot_jdk_platform + "_bin" + boot_jdk_ext,
+        configure_args: "--with-boot-jdk=" + common.boot_jdk_home,
+        environment_path: common.boot_jdk_home + "/bin"
+    }
 
     var makeBinDir = (input.build_os == "windows"
         ? input.get("gnumake", "install_path") + "/cygwin/bin"
         : input.get("gnumake", "install_path") + "/bin");
 
-    if (input.build_cpu == 'aarch64') {
-        boot_jdk = {
-            organization: common.organization,
-            ext: "tar.gz",
-            module: "jdk-linux_aarch64",
-            revision: "14+1.0",
-            configure_args: "--with-boot-jdk=" + common.boot_jdk_home,
-            environment_path: common.boot_jdk_home + "/bin"
-        }
-    } else {
-        boot_jdk = {
-            server: "jpg",
-            product: "jdk",
-            version: common.boot_jdk_version,
-            build_number: common.boot_jdk_build_number,
-            file: "bundles/" + boot_jdk_platform + "/jdk-" + common.boot_jdk_version + "_"
-                + boot_jdk_platform + "_bin" + boot_jdk_ext,
-            configure_args: "--with-boot-jdk=" + common.boot_jdk_home,
-            environment_path: common.boot_jdk_home + "/bin"
-        }
-    }
-
     var dependencies = {
         boot_jdk: boot_jdk,
 
@@ -1033,7 +1111,17 @@ var getJibProfilesDependencies = function (input, common) {
             organization: common.organization,
             ext: "tar.gz",
             module: "devkit-" + input.build_platform,
-            revision: devkit_platform_revisions[input.build_platform]
+            revision: devkit_platform_revisions[input.build_platform],
+            // Only set --with-build-devkit when cross compiling.
+            configure_args: (input.build_cpu == input.target_cpu ? false
+                : "--with-build-devkit=" + input.get("build_devkit", "home_path"))
+        },
+
+        lldb: {
+            organization: common.organization,
+            ext: "tar.gz",
+            module: "devkit-macosx" + (input.build_cpu == "x64" ? "_x64" : ""),
+            revision: (input.build_cpu == "x64" ? "Xcode11.3.1-MacOSX10.15+1.1" : devkit_platform_revisions[devkit_platform])
         },
 
         cups: {
@@ -1057,20 +1145,19 @@ var getJibProfilesDependencies = function (input, common) {
         jmh: {
             organization: common.organization,
             ext: "tar.gz",
-            revision: "1.21+1.0"
+            revision: "1.28+1.0"
         },
 
         jcov: {
-            // Until an official build of JCov is available, use custom
-            // build to support classfile version 57.
-            // See CODETOOLS-7902358 for more info.
+            // Use custom build of JCov
+            // See CODETOOLS-7902734 for more info.
             // server: "jpg",
             // product: "jcov",
             // version: "3.0",
             // build_number: "b07",
             // file: "bundles/jcov-3_0.zip",
             organization: common.organization,
-            revision: "3.0-59-support+1.0",
+            revision: "3.0-7-jdk-asm+1.0",
             ext: "zip",
             environment_name: "JCOV_HOME",
         },
@@ -1139,15 +1226,6 @@ var getJibProfilesDependencies = function (input, common) {
             configure_args: "",
         },
 
-        graalunit_lib: {
-            organization: common.organization,
-            ext: "zip",
-            revision: "619_Apr_12_2018",
-            module: "graalunit-lib",
-            configure_args: "--with-graalunit-lib=" + input.get("graalunit_lib", "install_path"),
-            environment_name: "GRAALUNIT_LIB"
-        },
-
         gtest: {
             organization: common.organization,
             ext: "tar.gz",
@@ -1305,7 +1383,7 @@ var concatObjects = function (o1, o2) {
 
 /**
  * Constructs the numeric version string from reading the
- * make/autoconf/version-numbers file and removing all trailing ".0".
+ * make/conf/version-numbers.conf file and removing all trailing ".0".
  *
  * @param feature Override feature version
  * @param interim Override interim version
@@ -1313,15 +1391,15 @@ var concatObjects = function (o1, o2) {
  * @param patch Override patch version
  * @returns {String} The numeric version string
  */
-var getVersion = function (feature, interim, update, patch) {
+var getVersion = function (feature, interim, update, patch, extra1, extra2, extra3) {
     var version_numbers = getVersionNumbers();
     var version = (feature != null ? feature : version_numbers.get("DEFAULT_VERSION_FEATURE"))
         + "." + (interim != null ? interim : version_numbers.get("DEFAULT_VERSION_INTERIM"))
         + "." + (update != null ? update :  version_numbers.get("DEFAULT_VERSION_UPDATE"))
         + "." + (patch != null ? patch : version_numbers.get("DEFAULT_VERSION_PATCH"))
-        + "." + version_numbers.get("DEFAULT_VERSION_EXTRA1")
-        + "." + version_numbers.get("DEFAULT_VERSION_EXTRA2")
-        + "." + version_numbers.get("DEFAULT_VERSION_EXTRA3");
+        + "." + (extra1 != null ? extra1 : version_numbers.get("DEFAULT_VERSION_EXTRA1"))
+        + "." + (extra2 != null ? extra2 : version_numbers.get("DEFAULT_VERSION_EXTRA2"))
+        + "." + (extra3 != null ? extra3 : version_numbers.get("DEFAULT_VERSION_EXTRA3"));
     while (version.match(".*\\.0$")) {
         version = version.substring(0, version.length - 2);
     }
@@ -1339,33 +1417,37 @@ var versionArgs = function(input, common) {
                       "--with-version-pre=" + version_numbers.get("DEFAULT_PROMOTED_VERSION_PRE"),
                       "--without-version-opt");
     } else if (input.build_type == "ci") {
-        var optString = input.build_id_data.ciBuildNumber;
+        var ciBuildNumber = input.build_id_data.ciBuildNumber;
         var preString = input.build_id_data.projectName;
         if (preString == "jdk") {
             preString = version_numbers.get("DEFAULT_PROMOTED_VERSION_PRE");
         }
         args = concat(args, "--with-version-pre=" + preString,
-                     "--with-version-opt=" + optString);
+                      "--with-version-opt=" + ciBuildNumber);
+        if (input.target_os == "macosx") {
+            args = concat(args, "--with-macosx-bundle-build-version="
+                          + common.build_number + "." + ciBuildNumber);
+        }
     } else {
         args = concat(args, "--with-version-opt=" + common.build_id);
     }
     return args;
 }
 
-// Properties representation of the make/autoconf/version-numbers file. Lazily
+// Properties representation of the make/conf/version-numbers.conf file. Lazily
 // initiated by the function below.
 var version_numbers;
 
 /**
- * Read the make/autoconf/version-numbers file into a Properties object.
+ * Read the make/conf/version-numbers.conf file into a Properties object.
  *
  * @returns {java.utilProperties}
  */
 var getVersionNumbers = function () {
-    // Read version information from make/autoconf/version-numbers
+    // Read version information from make/conf/version-numbers.conf
     if (version_numbers == null) {
         version_numbers = new java.util.Properties();
-        var stream = new java.io.FileInputStream(__DIR__ + "/../autoconf/version-numbers");
+        var stream = new java.io.FileInputStream(__DIR__ + "/version-numbers.conf");
         version_numbers.load(stream);
         stream.close();
     }

make/conf/module-loader-map.conf

@@ -0,0 +1,93 @@
+#
+# Copyright (c) 2014, 2021, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+################################################################################
+# BOOT_MODULES are modules defined by the boot loader
+# PLATFORM_MODULES are modules defined by the platform loader
+#
+# All other modules not declared below are defined by the application loader
+# and are not included in JRE.
+
+BOOT_MODULES= \
+    java.base \
+    java.datatransfer \
+    java.desktop \
+    java.instrument \
+    java.logging \
+    java.management \
+    java.management.rmi \
+    java.naming \
+    java.prefs \
+    java.rmi \
+    java.security.sasl \
+    java.xml \
+    jdk.incubator.foreign \
+    jdk.incubator.vector \
+    jdk.internal.vm.ci \
+    jdk.jfr \
+    jdk.management \
+    jdk.management.jfr \
+    jdk.management.agent \
+    jdk.net \
+    jdk.nio.mapmode \
+    jdk.sctp \
+    jdk.unsupported \
+    jdk.naming.rmi \
+    #
+
+# Modules that directly or indirectly requiring upgradeable modules
+# should carefully be considered if it should be upgradeable or not.
+UPGRADEABLE_PLATFORM_MODULES= \
+    java.compiler \
+    #
+
+PLATFORM_MODULES= \
+    java.se \
+    java.net.http \
+    java.scripting \
+    java.security.jgss \
+    java.smartcardio \
+    java.sql \
+    java.sql.rowset \
+    java.transaction.xa \
+    java.xml.crypto \
+    jdk.accessibility \
+    jdk.charsets \
+    jdk.crypto.cryptoki \
+    jdk.crypto.ec \
+    jdk.dynalink \
+    jdk.httpserver \
+    jdk.jsobject \
+    jdk.localedata \
+    jdk.naming.dns \
+    jdk.security.auth \
+    jdk.security.jgss \
+    jdk.xml.dom \
+    jdk.zipfs \
+    #
+
+PLATFORM_MODULES_windows= \
+    jdk.crypto.mscapi \
+    #

make/conf/test-dependencies

@@ -0,0 +1,43 @@
+#
+# Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+# Versions and download locations for dependencies used by pre-submit testing.
+
+BOOT_JDK_VERSION=16
+JTREG_VERSION=5.1
+JTREG_BUILD=b01
+GTEST_VERSION=1.8.1
+
+LINUX_X64_BOOT_JDK_FILENAME=openjdk-16_linux-x64_bin.tar.gz
+LINUX_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_linux-x64_bin.tar.gz
+LINUX_X64_BOOT_JDK_SHA256=e952958f16797ad7dc7cd8b724edd69ec7e0e0434537d80d6b5165193e33b931
+
+WINDOWS_X64_BOOT_JDK_FILENAME=openjdk-16_windows-x64_bin.zip
+WINDOWS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_windows-x64_bin.zip
+WINDOWS_X64_BOOT_JDK_SHA256=a78bdeaad186297601edac6772d931224d7af6f682a43372e693c37020bd37d6
+
+MACOS_X64_BOOT_JDK_FILENAME=openjdk-16_osx-x64_bin.tar.gz
+MACOS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_osx-x64_bin.tar.gz
+MACOS_X64_BOOT_JDK_SHA256=16f3e39a31e86f3f51b0b4035a37494a47ed3c4ead760eafc6afd7afdf2ad9f2

make/conf/version-numbers.conf

@@ -0,0 +1,41 @@
+#
+# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# version 2 for more details (a copy is included in the LICENSE file that
+# accompanied this code).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+# or visit www.oracle.com if you need additional information or have any
+# questions.
+#
+
+# Default version, product, and vendor information to use,
+# unless overridden by configure
+
+DEFAULT_VERSION_FEATURE=17
+DEFAULT_VERSION_INTERIM=0
+DEFAULT_VERSION_UPDATE=0
+DEFAULT_VERSION_PATCH=0
+DEFAULT_VERSION_EXTRA1=0
+DEFAULT_VERSION_EXTRA2=0
+DEFAULT_VERSION_EXTRA3=0
+DEFAULT_VERSION_DATE=2021-09-14
+DEFAULT_VERSION_CLASSFILE_MAJOR=61  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
+DEFAULT_VERSION_CLASSFILE_MINOR=0
+DEFAULT_ACCEPTABLE_BOOT_VERSIONS="16 17"
+DEFAULT_JDK_SOURCE_TARGET_VERSION=17
+DEFAULT_PROMOTED_VERSION_PRE=ea

make/data/blacklistedcertsconverter/blacklisted.certs.pem

@@ -1,750 +0,0 @@
-#! java BlacklistedCertsConverter SHA-256
-
-# The line above must be the first line of the blacklisted.certs.pem
-# file inside src/share/lib/security/. It will be ignored if added in
-# src/closed/share/lib/security/blacklisted.certs.pem.
-
-// Subject: CN=Digisign Server ID (Enrich),
-//          OU=457608-K,
-//          O=Digicert Sdn. Bhd.,
-//          C=MY
-// Issuer:  CN=GTE CyberTrust Global Root,
-//          OU=GTE CyberTrust Solutions, Inc.,
-//          O=GTE Corporation,
-//          C=US
-// Serial:  120001705 (07:27:14:a9)
------BEGIN CERTIFICATE-----
-MIIDyzCCAzSgAwIBAgIEBycUqTANBgkqhkiG9w0BAQUFADB1MQswCQYDVQQGEwJV
-UzEYMBYGA1UEChMPR1RFIENvcnBvcmF0aW9uMScwJQYDVQQLEx5HVEUgQ3liZXJU
-cnVzdCBTb2x1dGlvbnMsIEluYy4xIzAhBgNVBAMTGkdURSBDeWJlclRydXN0IEds
-b2JhbCBSb290MB4XDTA3MDcxNzE1MTc0OFoXDTEyMDcxNzE1MTY1NFowYzELMAkG
-A1UEBhMCTVkxGzAZBgNVBAoTEkRpZ2ljZXJ0IFNkbi4gQmhkLjERMA8GA1UECxMI
-NDU3NjA4LUsxJDAiBgNVBAMTG0RpZ2lzaWduIFNlcnZlciBJRCAoRW5yaWNoKTCB
-nzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEArahkS02Hx4RZufuQRqCmicDx/tXa
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-LHx7hRsyQt97lSUCAwEAAaOCAXgwggF0MBIGA1UdEwEB/wQIMAYBAf8CAQAwXAYD
-VR0gBFUwUzBIBgkrBgEEAbE+AQAwOzA5BggrBgEFBQcCARYtaHR0cDovL2N5YmVy
-dHJ1c3Qub21uaXJvb3QuY29tL3JlcG9zaXRvcnkuY2ZtMAcGBWCDSgEBMA4GA1Ud
-DwEB/wQEAwIB5jCBiQYDVR0jBIGBMH+heaR3MHUxCzAJBgNVBAYTAlVTMRgwFgYD
-VQQKEw9HVEUgQ29ycG9yYXRpb24xJzAlBgNVBAsTHkdURSBDeWJlclRydXN0IFNv
-bHV0aW9ucywgSW5jLjEjMCEGA1UEAxMaR1RFIEN5YmVyVHJ1c3QgR2xvYmFsIFJv
-b3SCAgGlMEUGA1UdHwQ+MDwwOqA4oDaGNGh0dHA6Ly93d3cucHVibGljLXRydXN0
-LmNvbS9jZ2ktYmluL0NSTC8yMDE4L2NkcC5jcmwwHQYDVR0OBBYEFMYWk04WF+wW
-royUdvOGbcV0boR3MA0GCSqGSIb3DQEBBQUAA4GBAHYAe6Z4K2Ydjl42xqSOBfIj
-knyTZ9P0wAp9iy3Z6tVvGvPhSilaIoRNUC9LDPL/hcJ7VdREgr5trGeOvLQfkpxR
-gBoU9m6rYYgLrRx/90tQUdZlG6ZHcRVesHHzNRTyN71jyNXwk1o0X9g96F33xR7A
-5c8fhiSpPAdmzcHSNmNZ
------END CERTIFICATE-----
-
-// Subject: CN=Digisign Server ID - (Enrich),
-//          OU=457608-K,
-//          O=Digicert Sdn. Bhd.,
-//          C=MY
-// Issuer:  CN=Entrust.net Certification Authority (2048)
-//          OU=(c) 1999 Entrust.net Limited,
-//          OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.),
-//          O=Entrust.net
-// Serial:  1184644297 (4c:0e:63:6a)
------BEGIN CERTIFICATE-----
-MIIEzjCCA7agAwIBAgIETA5jajANBgkqhkiG9w0BAQUFADCBtDEUMBIGA1UEChML
-RW50cnVzdC5uZXQxQDA+BgNVBAsUN3d3dy5lbnRydXN0Lm5ldC9DUFNfMjA0OCBp
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-BgkqhkiG9w0BAQUFAAOCAQEAl0zvSjpJrHL8MCBrtClbp8WVBJD5MtXChWreA6E3
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-6rFRc5Mcpd1TETfIKqcVJx20qsx/qjEw/LhFn0gJ7RDixQ==
------END CERTIFICATE-----
-
-// Subject: CN=Java Media APIs,
-//          OU=Java Signed Extensions,
-//          OU=Corporate Object Signing,
-//          O=Sun Microsystems Inc
-// Issuer:  CN=Object Signing CA,
-//          OU=Class 2 OnSite Subscriber CA,
-//          OU=VeriSign Trust Network,
-//          O=Sun Microsystems Inc
-// Serial:  6a:8b:99:91:37:59:4f:89:53:e2:97:18:9f:19:1e:4e
------BEGIN CERTIFICATE-----
-MIIFdzCCBF+gAwIBAgIQaouZkTdZT4lT4pcYnxkeTjANBgkqhkiG9w0BAQUFADCB
-gzEdMBsGA1UEChMUU3VuIE1pY3Jvc3lzdGVtcyBJbmMxHzAdBgNVBAsTFlZlcmlT
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-cdrdfbw6QzEUIYY=
------END CERTIFICATE-----
-
-// Subject: CN=JavaFX 1.0 Runtime,
-//          OU=Java Signed Extensions,
-//          OU=Corporate Object Signing,
-//          O=Sun Microsystems Inc
-// Issuer:  CN=Object Signing CA,
-//          OU=Class 2 OnSite Subscriber CA,
-//          OU=VeriSign Trust Network,
-//          O=Sun Microsystems Inc
-// Serial:  55:c0:e6:44:59:59:79:9e:d9:26:f1:b0:4a:1e:f0:27
------BEGIN CERTIFICATE-----
-MIIFezCCBGOgAwIBAgIQVcDmRFlZeZ7ZJvGwSh7wJzANBgkqhkiG9w0BAQUFADCB
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------END CERTIFICATE-----
-
-// Subject: CN=JavaFX Runtime,
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-// Serial:  47:f4:55:f1:da:4a:5e:f9:e3:f7:a8:03:62:17:c0:ff
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
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-// Subject: CN=Solaris INTERNAL DEVELOPMENT USE ONLY,
-//          OU=Solaris Cryptographic Framework,
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-// Issuer:  CN=Object Signing CA,
-//          OU=Class 2 OnSite Subscriber CA,
-//          OU=VeriSign Trust Network,
-//          O=Sun Microsystems Inc
-// Serial:  77:29:77:52:6a:19:7b:9a:a6:a2:c7:99:a0:e1:cd:8c
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: EMAILADDRESS=info@diginotar.nl, CN=DigiNotar Cyber CA,
-//          O=DigiNotar, C=NL
-// Issuer:  CN=GTE CyberTrust Global Root,
-//          OU=GTE CyberTrust Solutions, Inc.,
-//          O=GTE Corporation,
-//          C=US
-// Serial:  120000525 (07:27:10:0D)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=DigiNotar Cyber CA, O=DigiNotar, C=NL
-// Issuer:  CN=GTE CyberTrust Global Root,
-//          OU=GTE CyberTrust Solutions, Inc.,
-//          O=GTE Corporation,
-//          C=US
-// Serial:  120000505 (07:27:0F:F9)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=DigiNotar Cyber CA, O=DigiNotar, C=NL
-// Issuer:  CN=GTE CyberTrust Global Root,
-//          OU=GTE CyberTrust Solutions, Inc.,
-//          O=GTE Corporation,
-//          C=US
-// Serial:  120000515 (07:27:10:03)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: EMAILADDRESS=info@diginotar.nl,
-//          CN=DigiNotar Root CA,
-//          O=DigiNotar, C=NL
-// Issuer:  CN=Entrust.net Secure Server Certification Authority
-//          OU=(c) 1999 Entrust.net Limited,
-//          OU=www.entrust.net/CPS incorp. by ref. (limits liab.),
-//          O=Entrust.net,
-//          C=US,
-// Serial:  1184644297 (46:9C:3C:C9)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: EMAILADDRESS=info@diginotar.nl,
-//          CN=DigiNotar Root CA,
-//          O=DigiNotar, C=NL
-// Issuer:  CN=Entrust.net Secure Server Certification Authority
-//          OU=(c) 1999 Entrust.net Limited,
-//          OU=www.entrust.net/CPS incorp. by ref. (limits liab.),
-//          O=Entrust.net,
-//          C=US,
-// Serial:  1184640175 (46:9C:2C:AF)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=DigiNotar PKIoverheid CA Organisatie - G2,
-//          O=DigiNotar B.V.,
-//          C=NL
-// Issuer:  CN=Staat der Nederlanden Organisatie CA - G2,
-//          O=Staat der Nederlanden,
-//          C=NL
-// Serial:  20001983 (01:31:34:bf)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=DigiNotar PKIoverheid CA Overheid en Bedrijven,
-//          O=DigiNotar B.V.,
-//          C=NL
-// Issuer:  CN=Staat der Nederlanden Overheid CA
-//          O=Staat der Nederlanden,
-//          C=NL
-// Serial:  20015536 (01:31:69:b0)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=DigiNotar PKIoverheid CA Overheid
-//          O=DigiNotar B.V.,
-//          C=NL
-// Issuer:  CN=Staat der Nederlanden Overheid CA
-//          O=Staat der Nederlanden,
-//          C=NL
-// Serial:  20006006 (01:31:44:76)
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: EMAILADDRESS=info@diginotar.nl,
-//          CN=DigiNotar Services 1024 CA
-//          O=DigiNotar, C=NL
-// Issuer:  CN=Entrust.net Secure Server Certification Authority,
-//          OU=(c) 1999 Entrust.net Limited,
-//          OU=www.entrust.net/CPS incorp. by ref. (limits liab.),
-//          O=Entrust.net,
-//          C=US
-// Serial:  1184640176 (46:9c:2c:b0)
------BEGIN CERTIFICATE-----
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-B8WfedLHjFW/TMcnXlEWKz4=
------END CERTIFICATE-----
-
-// Subject: CN=Buster Paper Comercial Ltda,
-//          O=Buster Paper Comercial Ltda,
-//          L=S?o Jos? Dos Campos,
-//          ST=S?o Paulo,
-//          C=BR
-// Issuer:  CN=DigiCert Assured ID Code Signing CA-1,
-//          OU=www.digicert.com,
-//          O=DigiCert Inc,
-//          C=US
-// Serial:  07:b4:4c:db:ff:fb:78:de:05:f4:26:16:72:a6:73:12
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=BUSTER ASSISTENCIA TECNICA ELETRONICA LTDA - ME,
-//          O=BUSTER ASSISTENCIA TECNICA ELETRONICA LTDA - ME,
-//          L=S?o Paulo,
-//          ST=S?o Paulo,
-//          C=BR
-// Issuer:  CN=DigiCert Assured ID Code Signing CA-1,
-//          OU=www.digicert.com,
-//          O=DigiCert Inc,
-//          C=US
-// Serial:  0a:38:9b:95:ee:73:6d:d1:3b:c0:ed:74:3f:d7:4d:2f
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=CLEARESULT CONSULTING INC., OU=Corporate IT,
-//          O=CLEARESULT CONSULTING INC., L=Austin, ST=TX, C=US
-// Issuer:  SERIALNUMBER=07969287,
-//          CN=Go Daddy Secure Certification Authority,
-//          OU=http://certificates.godaddy.com/repository,
-//          O="GoDaddy.com, Inc.",
-//          L=Scottsdale,
-//          ST=Arizona,
-//          C=US
-// Serial:  2b:73:43:2a:a8:4f:44
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----
-
-// Subject: CN=eDellRoot
-// Issuer: CN=eDellRoot
-// Serial Number:
-//     6b:c5:7b:95:18:93:aa:97:4b:62:4a:c0:88:fc:3b:b6
------BEGIN CERTIFICATE-----
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------END CERTIFICATE-----

make/data/blockedcertsconverter/blocked.certs.pem

@@ -0,0 +1,749 @@
+#! java BlockedCertsConverter SHA-256
+
+# The line above must be the first line of this file. Do not
+# remove it.
+
+// Subject: CN=Digisign Server ID (Enrich),
+//          OU=457608-K,
+//          O=Digicert Sdn. Bhd.,
+//          C=MY
+// Issuer:  CN=GTE CyberTrust Global Root,
+//          OU=GTE CyberTrust Solutions, Inc.,
+//          O=GTE Corporation,
+//          C=US
+// Serial:  120001705 (07:27:14:a9)
+-----BEGIN CERTIFICATE-----
+MIIDyzCCAzSgAwIBAgIEBycUqTANBgkqhkiG9w0BAQUFADB1MQswCQYDVQQGEwJV
+UzEYMBYGA1UEChMPR1RFIENvcnBvcmF0aW9uMScwJQYDVQQLEx5HVEUgQ3liZXJU
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+// Issuer:  CN=Entrust.net Certification Authority (2048)
+//          OU=(c) 1999 Entrust.net Limited,
+//          OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.),
+//          O=Entrust.net
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+-----BEGIN CERTIFICATE-----
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+// Issuer:  CN=Object Signing CA,
+//          OU=Class 2 OnSite Subscriber CA,
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+//          O=Sun Microsystems Inc
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+// Subject: CN=JavaFX 1.0 Runtime,
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+//          O=Sun Microsystems Inc
+// Issuer:  CN=Object Signing CA,
+//          OU=Class 2 OnSite Subscriber CA,
+//          OU=VeriSign Trust Network,
+//          O=Sun Microsystems Inc
+// Serial:  55:c0:e6:44:59:59:79:9e:d9:26:f1:b0:4a:1e:f0:27
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+// Subject: CN=JavaFX Runtime,
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+// Issuer:  CN=Object Signing CA,
+//          OU=Class 2 OnSite Subscriber CA,
+//          OU=VeriSign Trust Network,
+//          O=Sun Microsystems Inc
+// Serial:  47:f4:55:f1:da:4a:5e:f9:e3:f7:a8:03:62:17:c0:ff
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=Solaris INTERNAL DEVELOPMENT USE ONLY,
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+//          OU=Corporate Object Signing,
+//          O=Sun Microsystems Inc
+// Issuer:  CN=Object Signing CA,
+//          OU=Class 2 OnSite Subscriber CA,
+//          OU=VeriSign Trust Network,
+//          O=Sun Microsystems Inc
+// Serial:  77:29:77:52:6a:19:7b:9a:a6:a2:c7:99:a0:e1:cd:8c
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: EMAILADDRESS=info@diginotar.nl, CN=DigiNotar Cyber CA,
+//          O=DigiNotar, C=NL
+// Issuer:  CN=GTE CyberTrust Global Root,
+//          OU=GTE CyberTrust Solutions, Inc.,
+//          O=GTE Corporation,
+//          C=US
+// Serial:  120000525 (07:27:10:0D)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=DigiNotar Cyber CA, O=DigiNotar, C=NL
+// Issuer:  CN=GTE CyberTrust Global Root,
+//          OU=GTE CyberTrust Solutions, Inc.,
+//          O=GTE Corporation,
+//          C=US
+// Serial:  120000505 (07:27:0F:F9)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=DigiNotar Cyber CA, O=DigiNotar, C=NL
+// Issuer:  CN=GTE CyberTrust Global Root,
+//          OU=GTE CyberTrust Solutions, Inc.,
+//          O=GTE Corporation,
+//          C=US
+// Serial:  120000515 (07:27:10:03)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: EMAILADDRESS=info@diginotar.nl,
+//          CN=DigiNotar Root CA,
+//          O=DigiNotar, C=NL
+// Issuer:  CN=Entrust.net Secure Server Certification Authority
+//          OU=(c) 1999 Entrust.net Limited,
+//          OU=www.entrust.net/CPS incorp. by ref. (limits liab.),
+//          O=Entrust.net,
+//          C=US,
+// Serial:  1184644297 (46:9C:3C:C9)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: EMAILADDRESS=info@diginotar.nl,
+//          CN=DigiNotar Root CA,
+//          O=DigiNotar, C=NL
+// Issuer:  CN=Entrust.net Secure Server Certification Authority
+//          OU=(c) 1999 Entrust.net Limited,
+//          OU=www.entrust.net/CPS incorp. by ref. (limits liab.),
+//          O=Entrust.net,
+//          C=US,
+// Serial:  1184640175 (46:9C:2C:AF)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=DigiNotar PKIoverheid CA Organisatie - G2,
+//          O=DigiNotar B.V.,
+//          C=NL
+// Issuer:  CN=Staat der Nederlanden Organisatie CA - G2,
+//          O=Staat der Nederlanden,
+//          C=NL
+// Serial:  20001983 (01:31:34:bf)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=DigiNotar PKIoverheid CA Overheid en Bedrijven,
+//          O=DigiNotar B.V.,
+//          C=NL
+// Issuer:  CN=Staat der Nederlanden Overheid CA
+//          O=Staat der Nederlanden,
+//          C=NL
+// Serial:  20015536 (01:31:69:b0)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=DigiNotar PKIoverheid CA Overheid
+//          O=DigiNotar B.V.,
+//          C=NL
+// Issuer:  CN=Staat der Nederlanden Overheid CA
+//          O=Staat der Nederlanden,
+//          C=NL
+// Serial:  20006006 (01:31:44:76)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: EMAILADDRESS=info@diginotar.nl,
+//          CN=DigiNotar Services 1024 CA
+//          O=DigiNotar, C=NL
+// Issuer:  CN=Entrust.net Secure Server Certification Authority,
+//          OU=(c) 1999 Entrust.net Limited,
+//          OU=www.entrust.net/CPS incorp. by ref. (limits liab.),
+//          O=Entrust.net,
+//          C=US
+// Serial:  1184640176 (46:9c:2c:b0)
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=Buster Paper Comercial Ltda,
+//          O=Buster Paper Comercial Ltda,
+//          L=S?o Jos? Dos Campos,
+//          ST=S?o Paulo,
+//          C=BR
+// Issuer:  CN=DigiCert Assured ID Code Signing CA-1,
+//          OU=www.digicert.com,
+//          O=DigiCert Inc,
+//          C=US
+// Serial:  07:b4:4c:db:ff:fb:78:de:05:f4:26:16:72:a6:73:12
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=BUSTER ASSISTENCIA TECNICA ELETRONICA LTDA - ME,
+//          O=BUSTER ASSISTENCIA TECNICA ELETRONICA LTDA - ME,
+//          L=S?o Paulo,
+//          ST=S?o Paulo,
+//          C=BR
+// Issuer:  CN=DigiCert Assured ID Code Signing CA-1,
+//          OU=www.digicert.com,
+//          O=DigiCert Inc,
+//          C=US
+// Serial:  0a:38:9b:95:ee:73:6d:d1:3b:c0:ed:74:3f:d7:4d:2f
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=CLEARESULT CONSULTING INC., OU=Corporate IT,
+//          O=CLEARESULT CONSULTING INC., L=Austin, ST=TX, C=US
+// Issuer:  SERIALNUMBER=07969287,
+//          CN=Go Daddy Secure Certification Authority,
+//          OU=http://certificates.godaddy.com/repository,
+//          O="GoDaddy.com, Inc.",
+//          L=Scottsdale,
+//          ST=Arizona,
+//          C=US
+// Serial:  2b:73:43:2a:a8:4f:44
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+// Subject: CN=eDellRoot
+// Issuer: CN=eDellRoot
+// Serial Number:
+//     6b:c5:7b:95:18:93:aa:97:4b:62:4a:c0:88:fc:3b:b6
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

make/data/bundle/JDK-Info.plist

@@ -17,11 +17,13 @@
         <key>CFBundlePackageType</key>
         <string>BNDL</string>
         <key>CFBundleShortVersionString</key>
-        <string>1.0</string>
+        <string>@@VERSION@@</string>
         <key>CFBundleSignature</key>
         <string>????</string>
         <key>CFBundleVersion</key>
-        <string>@@VERSION@@</string>
+        <string>@@BUILD_VERSION@@</string>
+        <key>NSMicrophoneUsageDescription</key>
+        <string>The application is requesting access to the microphone.</string>
         <key>JavaVM</key>
         <dict>
                 <key>JVMCapabilities</key>
@@ -31,9 +33,9 @@
                 <key>JVMMinimumFrameworkVersion</key>
                 <string>13.2.9</string>
                 <key>JVMMinimumSystemVersion</key>
-                <string>10.6.0</string>
+                <string>@@MACOSX_VERSION_MIN@@</string>
                 <key>JVMPlatformVersion</key>
-                <string>@@PLATFORM_VERSION@@</string>
+                <string>@@VERSION@@</string>
                 <key>JVMVendor</key>
                 <string>@@VENDOR@@</string>
                 <key>JVMVersion</key>

make/data/bundle/JRE-Info.plist

@@ -17,19 +17,21 @@
         <key>CFBundlePackageType</key>
         <string>BNDL</string>
         <key>CFBundleShortVersionString</key>
-        <string>1.0</string>
+        <string>@@VERSION@@</string>
         <key>CFBundleSignature</key>
         <string>????</string>
         <key>CFBundleVersion</key>
-        <string>@@VERSION@@</string>
+        <string>@@BUILD_VERSION@@</string>
+        <key>NSMicrophoneUsageDescription</key>
+        <string>The application is requesting access to the microphone.</string>
         <key>JavaVM</key>
         <dict>
                 <key>JVMMinimumFrameworkVersion</key>
                 <string>13.2.9</string>
                 <key>JVMMinimumSystemVersion</key>
-                <string>10.6.0</string>
+                <string>@@MACOSX_VERSION_MIN@@</string>
                 <key>JVMPlatformVersion</key>
-                <string>@@PLATFORM_VERSION@@</string>
+                <string>@@VERSION@@</string>
                 <key>JVMVendor</key>
                 <string>@@VENDOR@@</string>
                 <key>JVMVersion</key>

make/data/bundle/cmdline-Info.plist

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+        <key>CFBundleIdentifier</key>
+        <string>@@ID@@</string>
+        <key>CFBundleInfoDictionaryVersion</key>
+        <string>6.0</string>
+        <key>CFBundleShortVersionString</key>
+        <string>@@VERSION@@</string>
+        <key>CFBundleVersion</key>
+        <string>@@BUILD_VERSION@@</string>
+        <key>NSMicrophoneUsageDescription</key>
+        <string>The application is requesting access to the microphone.</string>
+        @@EXTRA@@
+</dict>
+</plist>