8261072: AArch64: Fix MacroAssembler::get_thread convention

Co-authored-by: Monica Beckwith <mbeckwit@openjdk.org>
Backport-of: b670efd896

.hgtags

@@ -623,3 +623,21 @@ c45f74d45787a857d35b5a66c9b0304c91a9c5d0 jdk-11.0.10+7
 43428f69099f6f87f6e1922deacbf13e1adb751f jdk-11.0.10+8
 8b3498547395ee80a6e731078056b2aeb3e3c5e8 jdk-11.0.10+9
 8b3498547395ee80a6e731078056b2aeb3e3c5e8 jdk-11.0.10-ga
+4ed322bf6b0098353ceaecf35662fadf457cd81d jdk-11.0.11+1
+b68647c6ecc1e73111d8047448d75966f255460f jdk-11.0.11+2
+14cc036b17a5f4be5b0643e6b24ed32563684ab9 jdk-11.0.11+3
+c4405735470a92e2c45490b89a8099252f3481d2 jdk-11.0.11+4
+38430a8a4488582612c6a87ab58d109cc5217e8b jdk-11.0.11+5
+e41ae00add1d76a8f25adb558933382947ea840d jdk-11.0.11+6
+14f9928caac31368d27f13e4e21ca25c1e0be950 jdk-11.0.11+7
+9f0347b029d3a0349f23befcfb68ee02d85d9034 jdk-11.0.11+8
+15862747ee15445292b4b9949b4f0f4badba4812 jdk-11.0.11+9
+15862747ee15445292b4b9949b4f0f4badba4812 jdk-11.0.11-ga
+5720ffa08f8514b9f0ea8b3a49e05a872c9c0efe jdk-11.0.12+1
+70a4031a8bef3e693f34864fdd482429c73dc76a jdk-11.0.12+2
+873a691b1ae4fa8b55ca5d08fa21aca3a4904fb8 jdk-11.0.12+3
+40d1e784e1937aaea696a9654cc2d944d3d78996 jdk-11.0.12+4
+6aa6f6860508fca3a97aea1de7a36574498d22bf jdk-11.0.12+5
+91e81ac088545abdc3eaaa707853d31a6cf99af3 jdk-11.0.12+6
+f412f2537f1502a9697a9684c77bea8d848db1ab jdk-11.0.12+7
+f412f2537f1502a9697a9684c77bea8d848db1ab jdk-11.0.12-ga

.idea/copyright/JetBrains.xml

@@ -1,9 +1,7 @@
 <component name="CopyrightManager">
   <copyright>
-    <option name="notice" value="Copyright 2000-&amp;#36;today.year JetBrains s.r.o.&#10;&#10;Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);&#10;you may not use this file except in compliance with the License.&#10;You may obtain a copy of the License at&#10;&#10;http://www.apache.org/licenses/LICENSE-2.0&#10;&#10;Unless required by applicable law or agreed to in writing, software&#10;distributed under the License is distributed on an &quot;AS IS&quot; BASIS,&#10;WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.&#10;See the License for the specific language governing permissions and&#10;limitations under the License." />
-    <option name="keyword" value="Copyright" />
-    <option name="allowReplaceKeyword" value="JetBrains" />
+    <option name="allowReplaceRegexp" value="JetBrains" />
+    <option name="notice" value="Copyright 2000-&amp;#36;today.year JetBrains s.r.o.&#10;DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.&#10; &#10;This code is free software; you can redistribute it and/or modify it&#10;under the terms of the GNU General Public License version 2 only, as&#10;published by the Free Software Foundation.&#10;&#10;This code is distributed in the hope that it will be useful, but WITHOUT&#10;ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or&#10;FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License&#10;version 2 for more details (a copy is included in the LICENSE file that&#10;accompanied this code).&#10;&#10;You should have received a copy of the GNU General Public License version&#10;2 along with this work; if not, write to the Free Software Foundation,&#10;Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.&#10;&#10;Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA&#10;or visit www.oracle.com if you need additional information or have any&#10;questions." />
     <option name="myName" value="JetBrains" />
-    <option name="myLocal" value="true" />
   </copyright>
 </component>

README.md

@@ -1,91 +1,145 @@
 [![official JetBrains project](http://jb.gg/badges/official.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
 
-# Downloads
+# Welcome to JetBrains Runtime!
 
-|Windows-x64  |macOS        |Linux-x64    |
-|-------------|-------------|-------------|
-|[ ![Download](https://api.bintray.com/packages/jetbrains/intellij-jdk/openjdk11-windows-x64/images/download.svg) ](https://bintray.com/jetbrains/intellij-jdk/openjdk11-windows-x64/_latestVersion)|[ ![Download](https://api.bintray.com/packages/jetbrains/intellij-jdk/openjdk11-osx-x64/images/download.svg) ](https://bintray.com/jetbrains/intellij-jdk/openjdk11-osx-x64/_latestVersion)|[ ![Download](https://api.bintray.com/packages/jetbrains/intellij-jdk/openjdk11-linux-x64/images/download.svg) ](https://bintray.com/jetbrains/intellij-jdk/openjdk11-linux-x64/_latestVersion)|
+JetBrains Runtime is a fork of [OpenJDK](https://github.com/openjdk/jdk) available for Windows, Mac OS X, and Linux.
+It includes a number enhancements in font rendering, HiDPI support, ligatures, performance improvements, and bugfixes.
 
+## Releases
+Download the latest releases of JetBrains Runtime to use with JetBrains IDEs. The full list
+can be found on the [releases page](https://github.com/JetBrains/JetBrainsRuntime/releases).
 
-# How JetBrains Runtime is organised
-## Workspaces
+| IDE Version | Latest JBR | Date Released |
+|  ---        | ---        | ---           |
+| 2021.2      | [11_0_11-b1504.16](https://github.com/JetBrains/JetBrainsRuntime/releases/tag/jb11_0_11-b1504.16)   | 10-Aug-2021 |
+| 2021.1      | [11.0.11+9-b1341.60](https://confluence.jetbrains.com/pages/viewpage.action?pageId=218857477)     | 15-Jun-2021 |
+| 2020.3      | [11_0_11-b1145.115](https://confluence.jetbrains.com/pages/viewpage.action?pageId=219349001)    | 21-Jun-2021 |
 
-[github.com/JetBrains/JetBrainsRuntime](https://github.com/JetBrains/JetBrainsRuntime)  
+## Contents
+- [Welcome to JetBrains Runtime](#jetbrains-runtime)
+  - [Products Built on JetBrains Runtime](#products-built-on-jetbrains-runtime)
+  - [Getting Sources](#getting-sources)
+    - [macOS, Linux](#macos-linux)
+    - [Windows](#sources-windows)
+  - [Configuring the Build Environment](#configuring-the-build-environment)
+    - [Linux (Docker)](#linux-docker)
+    - [Ubuntu Linux](#ubuntu-linux)
+    - [Windows](#build-windows)
+    - [macOS](#macos)
+  - [Contributing](#contributing)
+  - [Resources](#resources)
 
-## Getting sources
-__macOS, Linux:__
+## Products Built on JetBrains Runtime
+* [Android Studio](https://developer.android.com/studio). The official IDE for Google's Android operating system.
+* [CLion](https://www.jetbrains.com/clion/). A cross-platform IDE for C and C++ from JetBrains.
+* [DataGrip](https://www.jetbrains.com/datagrip/). The IDE for Databases and SQL from JetBrains.
+* [GoLand](https://www.jetbrains.com/go/). The cross-platform Go IDE from JetBrains.
+* [IntelliJ IDEA](https://www.jetbrains.com/idea/). The IDE for JVM from JetBrains.
+* [JProfiler](https://www.ej-technologies.com/products/jprofiler/overview.html). The Java profiler.
+* [PhpStorm](https://www.jetbrains.com/phpstorm/). The PHP IDE from JetBrains.
+* [PyCharm](https://www.jetbrains.com/pycharm/). The Python IDE from JetBrains.
+* [Rider](https://www.jetbrains.com/rider/). The cross-platform .NET IDE from JetBrains.
+* [RubyMine](https://www.jetbrains.com/ruby/). The Ruby and Rails IDE from JetBrains.
+* [WebStorm](https://www.jetbrains.com/webstorm/). The JavaScript IDE from JetBrains.
+* [YourKit](https://www.yourkit.com/). Java and .NET profilers.
+
+## Getting Sources
+### macOS, Linux
 ```
 git config --global core.autocrlf input
 git clone git@github.com:JetBrains/JetBrainsRuntime.git
 ```
 
-__Windows:__
+### Windows
+<a name="sources-windows"></a>
 ```
 git config --global core.autocrlf false
 git clone git@github.com:JetBrains/JetBrainsRuntime.git
 ```
 
-# Configure local build environment
-[OpenJDK build docs](http://hg.openjdk.java.net/jdk/jdk11/raw-file/tip/doc/building.html)  
-Tip for all platforms: run `./configure` and check output.  
-Usually, it has meaningful advice how to solve your problem.
+## Configuring the Build Environment
+Here are quick per-platform instructions for those who can't wait to get started. 
+Please refer to [OpenJDK build docs](http://hg.openjdk.java.net/jdk/jdk11/raw-file/tip/doc/building.html) for in-depth
+coverage of all the details.
 
-## Linux (Docker)
+> **_TIP:_**  To get a preliminary report of what's missing, run `./configure` and check its output. 
+> It would usually have a meaningful advice on how to solve the problem.
+
+### Linux (Docker)
+Create a container:
 ```
 $ cd jb/project/docker
 $ docker build .
 ...
 Successfully built 942ea9900054
-
+```
+Run these commands in the new container:
+```
 $ docker run -v `pwd`../../../../:/JetBrainsRuntime -it 942ea9900054
-
 # cd /JetBrainsRuntime
 # sh ./configure
 # make images CONF=linux-x86_64-normal-server-release
 ```
 
-## Linux (Ubuntu 18.10 desktop)
+### Ubuntu Linux
+Install the necessary tools, libraries, and headers with:
+```
+$ sudo apt-get install autoconf make build-essential libx11-dev libxext-dev libxrender-dev libxtst-dev \
+       libxt-dev libxrandr-dev libcups2-dev libfontconfig1-dev libasound2-dev \
+       openjdk-11-jdk
+```
+Then run the following:
 ```
-$ sudo apt-get install autoconf make build-essential libx11-dev libxext-dev libxrender-dev libxtst-dev libxt-dev libxrandr-dev libcups2-dev libfontconfig1-dev libasound2-dev 
-
 $ cd JetBrainsRuntime
 $ sh ./configure --disable-warnings-as-errors
 $ make images
 ```
 
-## Windows
-Install:
-* [Cygwin x64](http://www.cygwin.com/)  
-  Required packages: autoconf, binutils, cpio, diffutils, file, gawk, gcc-core, make, m4, unzip, zip.  
-  **Install them while installing Cygwin**.
-* Visual Studio compiler toolset [Download](https://visualstudio.microsoft.com/downloads/)  
-  Visual Studio 2015 has support by default.  
-  **Install with desktop development kit, it includes Windows SDK and compilers**.
-* [Java 11](http://www.oracle.com/technetwork/java/javase/downloads/index.html)  
-  If you have problems while configuring [read Java tips on Cygwin](http://horstmann.com/articles/cygwin-tips.html)
+### Windows
+<a name="build-windows"></a>
+Install the following:
+* [Cygwin x64](http://www.cygwin.com/).
+  Required packages: `autoconf`, `binutils`, `cpio`, `diffutils`, `file`, `gawk`, `gcc-core`, `make`, `m4`, `unzip`, `zip`.  
+  Install those together with Cygwin.
+* [Visual Studio compiler toolset](https://visualstudio.microsoft.com/downloads/).
+  Install with the desktop development kit, which includes Windows SDK and compilers.
+  Visual Studio 2015 is supported by default.
+* [Java 11](https://docs.aws.amazon.com/corretto/latest/corretto-11-ug/downloads-list.html). 
+  If you have problems while configuring, read [Java tips on Cygwin](http://horstmann.com/articles/cygwin-tips.html).
 
-From command line: 
+From the command line: 
 ```
 "c:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64
 "c:\Program_Files\cygwin64\bin\mintty.exe" /bin/bash -l
 ```
-First command will set env vars, the second will run Cygwin shell with proper environment.  
+The first command sets up environment variables, the second starts a Cygwin shell with the proper environment.  
 
-In Cygwin shell: 
-```    
-cd JetBrainsRuntime
-bash configure --enable-option-checking=fatal --with-toolchain-version=2015 --with-boot-jdk="/cygdrive/c/Program Files/Java/jdk-11.0.5" --disable-warnings-as-errors
-make images
+In the Cygwin shell: 
+```
+$ cd JetBrainsRuntime
+$ bash configure --enable-option-checking=fatal --with-toolchain-version=2015 \
+                 --with-boot-jdk="/cygdrive/c/Program Files/Java/jdk-11.0.5" --disable-warnings-as-errors
+$ make images
 ```
 
-## macOS
-Install Xcode command line developer tools, autoconf (via Homebrew).
+### macOS
+Install the following:
+* Xcode command line developer tools and `autoconf` via [Homebrew](getDpiInfo).
+* [Java 11](https://docs.aws.amazon.com/corretto/latest/corretto-11-ug/downloads-list.html).
 
-Run:
+From the command line:
 ```
-sh ./configure --prefix=$(pwd)/build  --disable-warnings-as-errors
-make images
+$ cd JetBrainsRuntime
+$ sh ./configure --prefix=$(pwd)/build  --disable-warnings-as-errors
+$ make images
 ```
 
-## Contribution
-We will be happy to receive your pull requests. Before you submit one, please sign our Contributor License Agreement (CLA)  https://www.jetbrains.com/agreements/cla/ 
+## Contributing
+We are happy to receive your pull requests! 
+Before you submit one, please sign our [Contributor License Agreement (CLA)](https://www.jetbrains.com/agreements/cla/).
+
+## Resources
+* [JetBrains Runtime on github](https://github.com/JetBrains/JetBrainsRuntime).
+* [OpenJDK build instructions](http://hg.openjdk.java.net/jdk/jdk11/raw-file/tip/doc/building.html).
+* [OpenJDK test instructions](http://hg.openjdk.java.net/jdk/jdk11/raw-file/tip/doc/building.html#running-tests).
+* [How to develop OpenJDK with CLion](https://blog.jetbrains.com/clion/2020/03/openjdk-with-clion/).

jb/project/docker/Dockerfile

@@ -4,9 +4,9 @@ RUN yum -y install centos-release-scl
 RUN yum -y install devtoolset-8
 RUN yum -y install zip bzip2 unzip tar wget make autoconf automake libtool alsa-devel cups-devel xorg-x11-devel libjpeg62-devel giflib-devel freetype-devel file which libXtst-devel libXt-devel libXrender-devel alsa-lib-devel fontconfig-devel libXrandr-devel libXi-devel git
 # Install Java 11
-RUN wget https://bintray.com/jetbrains/intellij-jbr/download_file?file_path=jbrsdk-11_0_3-linux-x64-b360.2.tar.gz \
+RUN wget https://cdn.azul.com/zulu/bin/zulu11.45.27-ca-jdk11.0.10-linux_x64.tar.gz \
 -O - | tar xz -C /
-ENV JAVA_HOME /jbrsdk
+ENV JAVA_HOME /zulu11.45.27-ca-jdk11.0.10-linux_x64
 ENV PATH $JAVA_HOME/bin:/opt/rh/devtoolset-8/root/usr/bin:$PATH
 RUN git config --global user.email "teamcity@buildserver.intellij.net"
 RUN git config --global user.name "builduser"

jb/project/tools/patches/dcevm/0001-Apply-basic-dcevm11-patch.patch

@@ -1,7 +1,7 @@
-From d75ca6d0d1799ffde4199f6ef5047699b98d3ff2 Mon Sep 17 00:00:00 2001
+From 07373a8bd65d7c2663024709f0d5b7e0e41aba40 Mon Sep 17 00:00:00 2001
 From: skybber <lada.dvorak7@gmail.com>
 Date: Wed, 14 Nov 2018 21:09:39 +0100
-Subject: [PATCH 01/18] Apply basic dcevm11 patch
+Subject: [PATCH 01/28] Apply basic dcevm11 patch
 
 ---
  src/hotspot/share/ci/ciObjectFactory.cpp      |   25 +
@@ -449,10 +449,10 @@ index d26f1f11fb4..fd4b134d7a7 100644
  
  // An entry in the class loader data dictionaries, this describes a class as
 diff --git a/src/hotspot/share/classfile/javaClasses.cpp b/src/hotspot/share/classfile/javaClasses.cpp
-index fc4efecc6e7..903979c9ef2 100644
+index e4f1b934afc..ef4011c1292 100644
 --- a/src/hotspot/share/classfile/javaClasses.cpp
 +++ b/src/hotspot/share/classfile/javaClasses.cpp
-@@ -2446,6 +2446,8 @@ void java_lang_Throwable::fill_in_stack_trace(Handle throwable, const methodHand
+@@ -2428,6 +2428,8 @@ void java_lang_Throwable::fill_in_stack_trace(Handle throwable, const methodHand
          skip_throwableInit_check = true;
        }
      }
@@ -461,7 +461,7 @@ index fc4efecc6e7..903979c9ef2 100644
      if (method->is_hidden()) {
        if (skip_hidden)  continue;
      }
-@@ -3628,6 +3630,62 @@ void java_lang_invoke_DirectMethodHandle::serialize_offsets(SerializeClosure* f)
+@@ -3610,6 +3612,62 @@ void java_lang_invoke_DirectMethodHandle::serialize_offsets(SerializeClosure* f)
  }
  #endif
  
@@ -524,7 +524,7 @@ index fc4efecc6e7..903979c9ef2 100644
  // Support for java_lang_invoke_MethodHandle
  
  int java_lang_invoke_MethodHandle::_type_offset;
-@@ -3814,6 +3872,11 @@ void java_lang_invoke_ResolvedMethodName::set_vmtarget(oop resolved_method, Meth
+@@ -3796,6 +3854,11 @@ void java_lang_invoke_ResolvedMethodName::set_vmtarget(oop resolved_method, Meth
    resolved_method->address_field_put(_vmtarget_offset, (address)m);
  }
  
@@ -537,7 +537,7 @@ index fc4efecc6e7..903979c9ef2 100644
    // lookup ResolvedMethod oop in the table, or create a new one and intern it
    oop resolved_method = ResolvedMethodTable::find_method(m());
 diff --git a/src/hotspot/share/classfile/javaClasses.hpp b/src/hotspot/share/classfile/javaClasses.hpp
-index bd9cdca3fe3..da004d1b307 100644
+index 910bb084b63..89a46264553 100644
 --- a/src/hotspot/share/classfile/javaClasses.hpp
 +++ b/src/hotspot/share/classfile/javaClasses.hpp
 @@ -67,6 +67,8 @@
@@ -561,7 +561,7 @@ index bd9cdca3fe3..da004d1b307 100644
    static void allocate_fixup_lists();
    static void compute_offsets();
  
-@@ -1055,6 +1057,55 @@ class java_lang_invoke_DirectMethodHandle: AllStatic {
+@@ -1048,6 +1050,55 @@ class java_lang_invoke_DirectMethodHandle: AllStatic {
    static int member_offset_in_bytes()           { return _member_offset; }
  };
  
@@ -617,7 +617,7 @@ index bd9cdca3fe3..da004d1b307 100644
  // Interface to java.lang.invoke.LambdaForm objects
  // (These are a private interface for managing adapter code generation.)
  
-@@ -1106,6 +1157,7 @@ class java_lang_invoke_ResolvedMethodName : AllStatic {
+@@ -1099,6 +1150,7 @@ class java_lang_invoke_ResolvedMethodName : AllStatic {
  
    static Method* vmtarget(oop resolved_method);
    static void set_vmtarget(oop resolved_method, Method* method);
@@ -977,7 +977,7 @@ index 05239c57866..c1357bde0ed 100644
    methodHandle        _method; // current method being verified
    VerificationType    _this_type; // the verification type of the current class
 diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
-index 44cf2583eb9..41e9a84cd69 100644
+index 8955dd0b366..26ff6ee9853 100644
 --- a/src/hotspot/share/classfile/vmSymbols.hpp
 +++ b/src/hotspot/share/classfile/vmSymbols.hpp
 @@ -286,6 +286,8 @@
@@ -1684,10 +1684,10 @@ index 81998728f66..b9ccdee8cca 100644
      }
    }
 diff --git a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
-index 77c28924b0d..84891b48c2a 100644
+index 6cf7aec68f8..61a406377ee 100644
 --- a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
 +++ b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
-@@ -1467,6 +1467,7 @@ static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStre
+@@ -1471,6 +1471,7 @@ static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStre
                               NULL, // host klass
                               NULL, // cp_patches
                               ClassFileParser::INTERNAL, // internal visibility
@@ -2260,7 +2260,7 @@ index 21e7f652652..e9cc3de9652 100644
  
    if (log_is_enabled(Debug, class, resolve) && k != NULL) {
 diff --git a/src/hotspot/share/prims/jvm.cpp b/src/hotspot/share/prims/jvm.cpp
-index 378dcce8cf5..f92d2697e0e 100644
+index 0d686d85fc7..70b525533cd 100644
 --- a/src/hotspot/share/prims/jvm.cpp
 +++ b/src/hotspot/share/prims/jvm.cpp
 @@ -936,6 +936,7 @@ static jclass jvm_define_class_common(JNIEnv *env, const char *name,
@@ -2273,7 +2273,7 @@ index 378dcce8cf5..f92d2697e0e 100644
    if (log_is_enabled(Debug, class, resolve) && k != NULL) {
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 new file mode 100644
-index 00000000000..80c31135487
+index 00000000000..83c0952de37
 --- /dev/null
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -0,0 +1,2255 @@
@@ -4534,7 +4534,7 @@ index 00000000000..80c31135487
 +}
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 new file mode 100644
-index 00000000000..3f95cf42645
+index 00000000000..b712d69a193
 --- /dev/null
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 @@ -0,0 +1,202 @@
@@ -4819,7 +4819,7 @@ index 6600848e2d3..9337b6ab585 100644
   if (_code_blobs != NULL) {
     for (int i=0; i<_code_blobs->length(); i++) {
 diff --git a/src/hotspot/share/prims/jvmtiExport.hpp b/src/hotspot/share/prims/jvmtiExport.hpp
-index cc5868f1e93..a6cbac03bb2 100644
+index b8246554f74..be2c373aba7 100644
 --- a/src/hotspot/share/prims/jvmtiExport.hpp
 +++ b/src/hotspot/share/prims/jvmtiExport.hpp
 @@ -176,6 +176,7 @@ class JvmtiExport : public AllStatic {

jb/project/tools/patches/dcevm/0002-dcevm11-fixes.patch

@@ -1,7 +1,7 @@
-From ebd5c9df33771ad5181a225cccc0cca3881a4dbe Mon Sep 17 00:00:00 2001
+From 41093b9513718c3122f3ff36da7fc2eeca224a10 Mon Sep 17 00:00:00 2001
 From: skybber <lada.dvorak7@gmail.com>
 Date: Wed, 14 Nov 2018 21:18:22 +0100
-Subject: [PATCH 02/18] dcevm11 fixes
+Subject: [PATCH 02/28] dcevm11 fixes
 
 1. We need to set classRedefinitionCount on new class, not old class.
 
@@ -463,7 +463,7 @@ index 2cc98b636f1..e8107a39813 100644
    // link this class into the implementors list of every interface it implements
    void process_interfaces(Thread *thread);
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 80c31135487..43d761cdbb2 100644
+index 83c0952de37..92ce6c27b8a 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -1,4 +1,4 @@
@@ -1394,7 +1394,7 @@ index 80c31135487..43d761cdbb2 100644
    ResourceMark mark(THREAD);
  
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 3f95cf42645..a48e07e3a6a 100644
+index b712d69a193..60b62c3170a 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 @@ -16,6 +16,8 @@

jb/project/tools/patches/dcevm/0003-Support-for-Concurrent-Mark-Sweep-CMS-collector.patch

@@ -1,7 +1,7 @@
-From aaefe6f66a8d363eb35fcdc8ce29bb25be67fe1c Mon Sep 17 00:00:00 2001
+From caa877d9126bd91d6719675a83928ba01bffb69a Mon Sep 17 00:00:00 2001
 From: skybber <lada.dvorak7@gmail.com>
 Date: Wed, 12 Dec 2018 19:38:28 +0100
-Subject: [PATCH 03/18] Support for Concurrent Mark Sweep (CMS) collector
+Subject: [PATCH 03/28] Support for Concurrent Mark Sweep (CMS) collector
 
 ---
  .../share/gc/cms/compactibleFreeListSpace.cpp | 139 ++++++++++++------
@@ -422,7 +422,7 @@ index 6b109fcd2e5..8c255d6d428 100644
          Klass* new_version = oop(cur_obj)->klass()->new_version();
          if (new_version->update_information() == NULL) {
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 43d761cdbb2..14af1aad21b 100644
+index 92ce6c27b8a..41e82ae7a69 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -54,6 +54,7 @@

jb/project/tools/patches/dcevm/0004-Fix-class-cast-exception-on-redefinition-of-class-A-.patch

@@ -1,7 +1,7 @@
-From 002ad1880190d0749f8f8d325c587fd9275bdab2 Mon Sep 17 00:00:00 2001
+From 93373779a1d44181ca07498faa8a0e8d7fc6b608 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <vladimir.dvorak@mailprofiler.com>
 Date: Wed, 11 Mar 2020 14:19:34 +0100
-Subject: [PATCH 04/18] Fix class cast exception on redefinition of class A,
+Subject: [PATCH 04/28] Fix class cast exception on redefinition of class A,
  that is superclass of B that has anonymous class C
 
 ---

jb/project/tools/patches/dcevm/0005-HotswapAgent-integration.patch

@@ -1,7 +1,7 @@
-From a00292280f4e3754bffc7a0c562dca1d7552eb39 Mon Sep 17 00:00:00 2001
+From c8850725d4c84f93beaee3c05f9d8f9862fe6159 Mon Sep 17 00:00:00 2001
 From: skybber <lada.dvorak7@gmail.com>
-Date: Wed, 14 Nov 2018 21:20:08 +0100
-Subject: [PATCH 05/18] HotswapAgent integration
+Date: Thu, 15 Nov 2018 03:20:08 +0700
+Subject: [PATCH 05/28] HotswapAgent integration
 
 It include:
 
@@ -37,7 +37,7 @@ old DCEVM
  make/launcher/Launcher-jdk.jartool.gmk        |  2 +
  make/launcher/Launcher-jdk.javadoc.gmk        |  3 +-
  make/launcher/Launcher-jdk.jcmd.gmk           | 13 +++-
- make/launcher/Launcher-jdk.jconsole.gmk       |  3 +-
+ make/launcher/Launcher-jdk.jconsole.gmk       |  1 +
  make/launcher/Launcher-jdk.jdeps.gmk          |  3 +
  make/launcher/Launcher-jdk.jdi.gmk            |  1 +
  make/launcher/Launcher-jdk.jlink.gmk          |  5 +-
@@ -55,7 +55,7 @@ old DCEVM
  .../classes/com/sun/beans/package-info.java   | 26 +++++++
  .../com/sun/beans/util/package-info.java      | 26 +++++++
  .../share/classes/module-info.java            |  3 +
- 28 files changed, 209 insertions(+), 11 deletions(-)
+ 28 files changed, 208 insertions(+), 10 deletions(-)
  create mode 100644 src/java.desktop/share/classes/com/sun/beans/introspect/package-info.java
  create mode 100644 src/java.desktop/share/classes/com/sun/beans/package-info.java
  create mode 100644 src/java.desktop/share/classes/com/sun/beans/util/package-info.java
@@ -259,16 +259,14 @@ index 7117fa78059..761a52d8466 100644
  
  # Hook to include the corresponding custom file, if present.
 diff --git a/make/launcher/Launcher-jdk.jconsole.gmk b/make/launcher/Launcher-jdk.jconsole.gmk
-index 575b9e0595b..9b38683a489 100644
+index 575b9e0595b..2f442f69113 100644
 --- a/make/launcher/Launcher-jdk.jconsole.gmk
 +++ b/make/launcher/Launcher-jdk.jconsole.gmk
-@@ -29,7 +29,8 @@ $(eval $(call SetupBuildLauncher, jconsole, \
-     MAIN_CLASS := sun.tools.jconsole.JConsole, \
+@@ -30,6 +30,7 @@ $(eval $(call SetupBuildLauncher, jconsole, \
      JAVA_ARGS := --add-opens java.base/java.io=jdk.jconsole \
  		 -Djconsole.showOutputViewer \
--		 -Djdk.attach.allowAttachSelf=true, \
-+		 -Djdk.attach.allowAttachSelf=true \
-+		 -XX:+DisableHotswapAgent, \
+ 		 -Djdk.attach.allowAttachSelf=true, \
++         -XX:+DisableHotswapAgent, \
      CFLAGS_windows := -DJAVAW, \
      LIBS_windows := user32.lib, \
  ))
@@ -392,7 +390,7 @@ index 82311e69fd6..bd39f8595b2 100644
      CFLAGS := -DENABLE_ARG_FILES, \
  ))
 diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
-index 41e9a84cd69..1f67eb202b5 100644
+index 26ff6ee9853..2409af9b06e 100644
 --- a/src/hotspot/share/classfile/vmSymbols.hpp
 +++ b/src/hotspot/share/classfile/vmSymbols.hpp
 @@ -342,6 +342,7 @@

jb/project/tools/patches/dcevm/0006-Support-for-Lambda-class-redefinition.patch

@@ -1,7 +1,7 @@
-From 62f3578e0a73913c1262a1612a464d19abfeb626 Mon Sep 17 00:00:00 2001
+From 1552e3854e11fb835452aa531ef53b78bb4588a5 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Sun, 4 Oct 2020 21:12:12 +0200
-Subject: [PATCH 06/18] Support for Lambda class redefinition
+Subject: [PATCH 06/28] Support for Lambda class redefinition
 
 ---
  .../share/classfile/classLoaderData.cpp       |  9 +++
@@ -111,7 +111,7 @@ index 06f6c869d63..1dbbffa197f 100644
                                       TRAPS);
  
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 14af1aad21b..0b239b2ff6d 100644
+index 41e82ae7a69..b94caa39562 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -488,6 +488,8 @@ void VM_EnhancedRedefineClasses::doit() {
@@ -208,7 +208,7 @@ index 14af1aad21b..0b239b2ff6d 100644
  
    // Sort the affected klasses such that a supertype is always on a smaller array index than its subtype.
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index a48e07e3a6a..3551b06ecde 100644
+index 60b62c3170a..d8a11b51fe9 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 @@ -116,6 +116,7 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
@@ -242,7 +242,7 @@ index af2ec48c2e1..7741328979f 100644
          assert(newer_method != NULL, "method_with_idnum() should not be NULL");
          assert(old_method != newer_method, "sanity check");
 diff --git a/src/hotspot/share/prims/unsafe.cpp b/src/hotspot/share/prims/unsafe.cpp
-index c071f8b7cc6..e484b8991d1 100644
+index 1983b4f45f0..5e7aca092eb 100644
 --- a/src/hotspot/share/prims/unsafe.cpp
 +++ b/src/hotspot/share/prims/unsafe.cpp
 @@ -820,6 +820,7 @@ Unsafe_DefineAnonymousClass_impl(JNIEnv *env,

jb/project/tools/patches/dcevm/0007-Fix-no-original-bytecode-found-error-if-method-with-.patch

@@ -1,7 +1,7 @@
-From 4b445e7a7f77f82f757c12010e3c88b2eb4698f9 Mon Sep 17 00:00:00 2001
+From 83c2efaeb6ea9ee29c6d9eb779991db787c036ac Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Sat, 23 May 2020 10:02:15 +0200
-Subject: [PATCH 07/18] Fix "no original bytecode found" error if method with
+Subject: [PATCH 07/28] Fix "no original bytecode found" error if method with
  bkp is missing
 
 Sometimes IDE can deploy class with erroneous method, such method has
@@ -102,7 +102,7 @@ index 4533476ff8f..193e1845b23 100644
    void set_breakpoint(int bci);
    void clear_breakpoint(int bci);
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 0b239b2ff6d..aba99bb60fa 100644
+index b94caa39562..1fbba406087 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -1356,14 +1356,16 @@ void VM_EnhancedRedefineClasses::unpatch_bytecode(Method* method) {

jb/project/tools/patches/dcevm/0008-Replace-deleted-method-with-Universe-throw_no_such_m.patch

@@ -1,7 +1,7 @@
-From c022124c6e0680d2dfc174f66fc858b0eb2591dc Mon Sep 17 00:00:00 2001
+From f9e238b9bf2cc3ae0c437fa3ebb1703c35f575cf Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Sun, 24 May 2020 12:07:42 +0200
-Subject: [PATCH 08/18] Replace deleted method with
+Subject: [PATCH 08/28] Replace deleted method with
  Universe::throw_no_such_method_error
 
 ---

jb/project/tools/patches/dcevm/0009-Support-for-G1-gc.patch

@@ -1,7 +1,7 @@
-From aa1d291c7349e5cecf9d93e817d0866460deb903 Mon Sep 17 00:00:00 2001
+From a579caf20ac76a5d7cc159d5fed2efa074380f0f Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Fri, 12 Jun 2020 17:43:52 +0200
-Subject: [PATCH 09/18] Support for G1 gc
+Subject: [PATCH 09/28] Support for G1 gc
 
 ---
  src/hotspot/share/gc/g1/g1CollectedHeap.cpp   |  20 +++
@@ -31,10 +31,10 @@ Subject: [PATCH 09/18] Support for G1 gc
  create mode 100644 src/hotspot/share/gc/shared/dcevmSharedGC.hpp
 
 diff --git a/src/hotspot/share/gc/g1/g1CollectedHeap.cpp b/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
-index dea8d9fdb0e..33664a30519 100644
+index a15b400c8e4..985fbad581b 100644
 --- a/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
 +++ b/src/hotspot/share/gc/g1/g1CollectedHeap.cpp
-@@ -2108,6 +2108,21 @@ public:
+@@ -2111,6 +2111,21 @@ public:
    }
  };
  
@@ -56,7 +56,7 @@ index dea8d9fdb0e..33664a30519 100644
  void G1CollectedHeap::object_iterate(ObjectClosure* cl) {
    IterateObjectClosureRegionClosure blk(cl);
    heap_region_iterate(&blk);
-@@ -2117,6 +2132,11 @@ void G1CollectedHeap::heap_region_iterate(HeapRegionClosure* cl) const {
+@@ -2124,6 +2139,11 @@ void G1CollectedHeap::heap_region_iterate(HeapRegionClosure* cl) const {
    _hrm.iterate(cl);
  }
  
@@ -69,7 +69,7 @@ index dea8d9fdb0e..33664a30519 100644
                                                                   HeapRegionClaimer *hrclaimer,
                                                                   uint worker_id) const {
 diff --git a/src/hotspot/share/gc/g1/g1CollectedHeap.hpp b/src/hotspot/share/gc/g1/g1CollectedHeap.hpp
-index 8a171dc6b52..05a068bb2e0 100644
+index be160d04bfe..9e92ee4a1fa 100644
 --- a/src/hotspot/share/gc/g1/g1CollectedHeap.hpp
 +++ b/src/hotspot/share/gc/g1/g1CollectedHeap.hpp
 @@ -144,6 +144,7 @@ class G1CollectedHeap : public CollectedHeap {
@@ -1040,7 +1040,7 @@ index d0a6d665aa0..3dc4cc1323c 100644
    SystemDictionary::oops_do(oopClosure);
  }
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index aba99bb60fa..8b6fad2128e 100644
+index 1fbba406087..e67fc2dd58f 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -36,7 +36,6 @@
@@ -1244,7 +1244,7 @@ index aba99bb60fa..8b6fad2128e 100644
    ResourceMark mark(THREAD);
  
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 3551b06ecde..62a0fbf54d4 100644
+index d8a11b51fe9..9755944d70b 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 @@ -86,9 +86,10 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {

jb/project/tools/patches/dcevm/0010-Change-log-level-in-advanced-redefinition.patch

@@ -1,7 +1,7 @@
-From b6ea0ee6fcc376f575be0f461c494664d55ed986 Mon Sep 17 00:00:00 2001
+From 8d14e792d9849beedc74de690cf4d208ac384878 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Sat, 13 Jun 2020 18:50:59 +0200
-Subject: [PATCH 10/18] Change log level in advanced redefinition
+Subject: [PATCH 10/28] Change log level in advanced redefinition
 
 - Change log level for "Comparing different class ver.." to debug
 - Fix adjust_method_entries_dcevm logging levels and severity
@@ -11,7 +11,7 @@ Subject: [PATCH 10/18] Change log level in advanced redefinition
  2 files changed, 3 insertions(+), 3 deletions(-)
 
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index 8b6fad2128e..a8adfa5af47 100644
+index e67fc2dd58f..5be9bb74305 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -915,7 +915,7 @@ jvmtiError VM_EnhancedRedefineClasses::load_new_class_versions(TRAPS) {

jb/project/tools/patches/dcevm/0011-AllowEnhancedClassRedefinition-is-false-disabled-by-.patch

@@ -1,7 +1,7 @@
-From ef1098751c596a03fd1721affc20d221b3544d37 Mon Sep 17 00:00:00 2001
+From 5c437ade174426dbaf99a53823597ac7d3b1b4da Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Tue, 6 Oct 2020 22:15:31 +0200
-Subject: [PATCH 11/18] AllowEnhancedClassRedefinition is false (disabled) by
+Subject: [PATCH 11/28] AllowEnhancedClassRedefinition is false (disabled) by
  default
 
 ---

jb/project/tools/patches/dcevm/0012-add-jvmtiEnhancedRedefineClasses.-to-CMakeLists.txt.patch

@@ -1,7 +1,7 @@
-From 6a78dda15c66cbba1ca6a2d7f3df3a55fc087f50 Mon Sep 17 00:00:00 2001
+From 8b1c8178e66af30012fdda3e7f1076309daaf6c4 Mon Sep 17 00:00:00 2001
 From: Artem Khvastunov <artem.khvastunov@jetbrains.com>
 Date: Tue, 14 Apr 2020 19:11:35 +0200
-Subject: [PATCH 12/18] add jvmtiEnhancedRedefineClasses.* to CMakeLists.txt
+Subject: [PATCH 12/28] add jvmtiEnhancedRedefineClasses.* to CMakeLists.txt
 
 ---
  jb/project/hotspot-cmake/CMakeLists.txt | 2 ++

jb/project/tools/patches/dcevm/0013-Set-HOTSPOT_VM_DISTRO-Dynamic-Code-Evolution.patch

@@ -1,14 +1,14 @@
-From 80c1cd01b45735928e3b3e9283b5484ea6a70a7f Mon Sep 17 00:00:00 2001
+From 5e7a1218684556596677f39ae01b2ec13ff68a19 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Mon, 19 Oct 2020 20:00:04 +0200
-Subject: [PATCH 13/18] Set HOTSPOT_VM_DISTRO=Dynamic Code Evolution
+Subject: [PATCH 13/28] Set HOTSPOT_VM_DISTRO=Dynamic Code Evolution
 
 ---
  make/autoconf/version-numbers | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/make/autoconf/version-numbers b/make/autoconf/version-numbers
-index 1d08f6a80dc..88b4d460ee8 100644
+index b9440902d34..c487ac6f047 100644
 --- a/make/autoconf/version-numbers
 +++ b/make/autoconf/version-numbers
 @@ -44,7 +44,7 @@ PRODUCT_NAME=OpenJDK

jb/project/tools/patches/dcevm/0014-Fix-G1-nmethod-registration.patch

@@ -1,7 +1,7 @@
-From 122562d31005edd3573a645c3a02c1d8fe843c5e Mon Sep 17 00:00:00 2001
+From c2a4abf7d01ecd7bd262e824338d6235a584086b Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Sun, 11 Oct 2020 10:43:28 +0200
-Subject: [PATCH 14/18] Fix G1 nmethod registration
+Subject: [PATCH 14/28] Fix G1 nmethod registration
 
 ---
  .../prims/jvmtiEnhancedRedefineClasses.cpp    | 19 ++++++++++++++++---
@@ -9,7 +9,7 @@ Subject: [PATCH 14/18] Fix G1 nmethod registration
  2 files changed, 18 insertions(+), 4 deletions(-)
 
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
-index a8adfa5af47..4ee12b7021f 100644
+index 5be9bb74305..f4bde7504c8 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
 @@ -217,7 +217,14 @@ void VM_EnhancedRedefineClasses::mark_as_scavengable(nmethod* nm) {
@@ -53,7 +53,7 @@ index a8adfa5af47..4ee12b7021f 100644
    log_trace(redefine, class, obsolete, metadata)("After updating instances");
  
 diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
-index 62a0fbf54d4..d00109a0b92 100644
+index 9755944d70b..4c0412d343d 100644
 --- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 +++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
 @@ -116,7 +116,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {

jb/project/tools/patches/dcevm/0015-Initialize-method-s-_new_version-_old_version-to-NUL.patch

@@ -1,7 +1,7 @@
-From 0156b2084be20579b407e112a00ba15f54248003 Mon Sep 17 00:00:00 2001
+From f0b7253294f14a64a5a4d0ef825e5377da03efa5 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Thu, 22 Oct 2020 20:15:20 +0200
-Subject: [PATCH 15/18] Initialize method's _new_version/_old_version to NULL
+Subject: [PATCH 15/28] Initialize method's _new_version/_old_version to NULL
 
 ---
  src/hotspot/share/oops/method.cpp | 3 ++-

jb/project/tools/patches/dcevm/0016-Clear-dcevm-code-separation.patch

@@ -1,7 +1,7 @@
-From 81ba8f1d120e158a7b0cfa09b5dd51295d51901f Mon Sep 17 00:00:00 2001
+From 0550e70425054a77e32fb96770d416b077720857 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Fri, 23 Oct 2020 10:20:26 +0200
-Subject: [PATCH 16/18] Clear dcevm code separation
+Subject: [PATCH 16/28] Clear dcevm code separation
 
 ---
  src/hotspot/share/classfile/systemDictionary.cpp   |  4 ++--
@@ -93,10 +93,10 @@ index 9dc184d02f5..bff1c3627b0 100644
                   is_static ? "static" : "non-static", resolved_klass->external_name(), fd.name()->as_C_string(),
                  current_klass->external_name());
 diff --git a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
-index 84891b48c2a..6f19e2939a2 100644
+index 61a406377ee..da9df7a21a2 100644
 --- a/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
 +++ b/src/hotspot/share/jfr/instrumentation/jfrEventClassTransformer.cpp
-@@ -1467,7 +1467,7 @@ static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStre
+@@ -1471,7 +1471,7 @@ static InstanceKlass* create_new_instance_klass(InstanceKlass* ik, ClassFileStre
                               NULL, // host klass
                               NULL, // cp_patches
                               ClassFileParser::INTERNAL, // internal visibility

jb/project/tools/patches/dcevm/0017-Fix-metadataOnStack-bug.patch

@@ -1,7 +1,7 @@
-From a022248d12e37084c8f8987a44d567ba0e02fb6d Mon Sep 17 00:00:00 2001
+From fde9f15ed4fdb5139b6b81238d0a667327b552bb Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Fri, 23 Oct 2020 11:07:40 +0200
-Subject: [PATCH 17/18] Fix metadataOnStack bug
+Subject: [PATCH 17/28] Fix metadataOnStack bug
 
 ---
  .../share/classfile/classLoaderData.cpp       |  7 +-

jb/project/tools/patches/dcevm/0018-Ignore-MetadataOnStackMark-if-redefining_gc_run.patch

@@ -0,0 +1,25 @@
+From 5b5f620932894e807956b45653d153d001be9fb1 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Sun, 1 Nov 2020 21:19:00 +0100
+Subject: [PATCH 18/28] Ignore MetadataOnStackMark if redefining_gc_run
+
+---
+ src/hotspot/share/classfile/classLoaderData.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index bba5ce0511f..8b2deb70e1b 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
++++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -1401,7 +1401,7 @@ bool ClassLoaderDataGraph::do_unloading(bool clean_previous_versions) {
+   bool walk_all_metadata = clean_previous_versions &&
+                              JvmtiExport::has_redefined_a_class() &&
+                              InstanceKlass::has_previous_versions_and_reset();
+-  MetadataOnStackMark md_on_stack(walk_all_metadata, AllowEnhancedClassRedefinition);
++  MetadataOnStackMark md_on_stack(walk_all_metadata, Universe::is_redefining_gc_run());
+ 
+   // Save previous _unloading pointer for CMS which may add to unloading list before
+   // purging and we don't want to rewalk the previously unloaded class loader data.
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0019-Fix-LoadedClassesClosure-fixes-problems-with-remote-.patch

@@ -1,7 +1,7 @@
-From 46795cd6c086e2008b270f89971bb07ad34ac355 Mon Sep 17 00:00:00 2001
+From 29ac3233d58d9a1a30160ae13a895ff70e504022 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <lada.dvorak7@gmail.com>
 Date: Wed, 11 Nov 2020 18:45:15 +0100
-Subject: [PATCH 18/18] Fix LoadedClassesClosure - fixes problems with remote
+Subject: [PATCH 19/28] Fix LoadedClassesClosure - fixes problems with remote
  debugging
 
 ---

jb/project/tools/patches/dcevm/0020-Disable-AllowEnhancedClassRedefinition-in-flight-rec.patch

@@ -1,7 +1,7 @@
-From 62fc66fa74886bd8bb15cd3e2084175f7ad5d0c7 Mon Sep 17 00:00:00 2001
+From 99e8f8d420dd09d6fb7f035d4baf7ef4816177e8 Mon Sep 17 00:00:00 2001
 From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
 Date: Fri, 5 Feb 2021 23:30:49 +0100
-Subject: [PATCH 19/19] Disable AllowEnhancedClassRedefinition in flight
+Subject: [PATCH 20/28] Disable AllowEnhancedClassRedefinition in flight
  recorder
 
 ---

jb/project/tools/patches/dcevm/0021-JBR-3106-Check-InstanceKlass-has_nestmate_access_to-.patch

@@ -0,0 +1,41 @@
+From 1bb55ff9f91733e45dd6f87eb4201a989b3338e3 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Fri, 12 Feb 2021 12:33:11 +0100
+Subject: [PATCH 21/28] JBR-3106 Check InstanceKlass::has_nestmate_access_to
+ with active classes
+
+Dcevm can leave old host in nested class if nested class is not
+redefined together with host class
+---
+ src/hotspot/share/oops/instanceKlass.cpp | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/src/hotspot/share/oops/instanceKlass.cpp b/src/hotspot/share/oops/instanceKlass.cpp
+index 710e0ddc930..24eb3ed68a6 100644
+--- a/src/hotspot/share/oops/instanceKlass.cpp
++++ b/src/hotspot/share/oops/instanceKlass.cpp
+@@ -327,11 +327,21 @@ bool InstanceKlass::has_nestmate_access_to(InstanceKlass* k, TRAPS) {
+     return false;
+   }
+ 
++  // (DCEVM) cur_host can be old, decide accessibility based on active version
++  if (AllowEnhancedClassRedefinition) {
++    cur_host = InstanceKlass::cast(cur_host->active_version());
++  }
++
+   Klass* k_nest_host = k->nest_host(icce, CHECK_false);
+   if (k_nest_host == NULL) {
+     return false;
+   }
+ 
++  // (DCEVM) k_nest_host can be old, decide accessibility based on active version
++  if (AllowEnhancedClassRedefinition) {
++    k_nest_host = InstanceKlass::cast(k_nest_host->active_version());
++  }
++
+   bool access = (cur_host == k_nest_host);
+ 
+   if (log_is_enabled(Trace, class, nestmates)) {
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0022-JBR-3110-Fix-assert-in-MetadataOnStackMark.patch

@@ -0,0 +1,31 @@
+From 52427060aba227d09dce4bd14410e1e626d64e46 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Sun, 7 Feb 2021 12:08:58 +0100
+Subject: [PATCH 22/28] JBR-3110 Fix assert in MetadataOnStackMark
+
+Fixed fastdebug tests crashes in redefine gc run
+---
+ src/hotspot/share/classfile/metadataOnStackMark.cpp | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/metadataOnStackMark.cpp b/src/hotspot/share/classfile/metadataOnStackMark.cpp
+index 9d7bdbde74b..66049f11629 100644
+--- a/src/hotspot/share/classfile/metadataOnStackMark.cpp
++++ b/src/hotspot/share/classfile/metadataOnStackMark.cpp
+@@ -49,10 +49,11 @@ NOT_PRODUCT(bool MetadataOnStackMark::_is_active = false;)
+ MetadataOnStackMark::MetadataOnStackMark(bool redefinition_walk, bool ignore) : _ignore(ignore) {
+   assert(SafepointSynchronize::is_at_safepoint(), "sanity check");
+   assert(_used_buffers == NULL, "sanity check");
+-  assert(!_is_active, "MetadataOnStackMarks do not nest");
+-  NOT_PRODUCT(_is_active = true;)
+ 
+   if (!ignore) {
++    assert(!_is_active, "MetadataOnStackMarks do not nest");
++    NOT_PRODUCT(_is_active = true;)
++
+     Threads::metadata_handles_do(Metadata::mark_on_stack);
+ 
+     if (redefinition_walk) {
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0023-Code-cleanup.patch

@@ -0,0 +1,78 @@
+From 93cea8d61ef395a1ef9e308b0d3a8f9409b108d0 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Fri, 12 Feb 2021 11:27:39 +0100
+Subject: [PATCH 23/28] Code cleanup
+
+- Rename confusing method name old_if_redefined to old_if_redefining
+- Remove unused is_redefining_gc_run
+---
+ src/hotspot/share/classfile/dictionary.cpp | 6 +++---
+ src/hotspot/share/classfile/dictionary.hpp | 2 +-
+ src/hotspot/share/memory/universe.hpp      | 5 -----
+ 3 files changed, 4 insertions(+), 9 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/dictionary.cpp b/src/hotspot/share/classfile/dictionary.cpp
+index dda5188c370..4e361d439f4 100644
+--- a/src/hotspot/share/classfile/dictionary.cpp
++++ b/src/hotspot/share/classfile/dictionary.cpp
+@@ -381,7 +381,7 @@ InstanceKlass* Dictionary::find(unsigned int hash, Symbol* name,
+   int index = hash_to_index(hash);
+   DictionaryEntry* entry = get_entry(index, hash, name);
+   if (entry != NULL && entry->is_valid_protection_domain(protection_domain)) {
+-    return old_if_redefined(entry->instance_klass());
++    return old_if_redefining(entry->instance_klass());
+   } else {
+     return NULL;
+   }
+@@ -394,7 +394,7 @@ InstanceKlass* Dictionary::find_class(int index, unsigned int hash,
+   assert (index == index_for(name), "incorrect index?");
+ 
+   DictionaryEntry* entry = get_entry(index, hash, name);
+-  return old_if_redefined((entry != NULL) ? entry->instance_klass() : NULL);
++  return old_if_redefining((entry != NULL) ? entry->instance_klass() : NULL);
+ }
+ 
+ 
+@@ -406,7 +406,7 @@ InstanceKlass* Dictionary::find_shared_class(int index, unsigned int hash,
+   assert (index == index_for(name), "incorrect index?");
+ 
+   DictionaryEntry* entry = get_entry(index, hash, name);
+-  return old_if_redefined((entry != NULL) ? entry->instance_klass() : NULL);
++  return old_if_redefining((entry != NULL) ? entry->instance_klass() : NULL);
+ }
+ 
+ 
+diff --git a/src/hotspot/share/classfile/dictionary.hpp b/src/hotspot/share/classfile/dictionary.hpp
+index 5eaa741d500..f6e08e7bfd5 100644
+--- a/src/hotspot/share/classfile/dictionary.hpp
++++ b/src/hotspot/share/classfile/dictionary.hpp
+@@ -120,7 +120,7 @@ public:
+   void rollback_redefinition();
+ 
+   // (DCEVM) return old class if redefining in AllowEnhancedClassRedefinition, otherwise return "k"
+-  static InstanceKlass* old_if_redefined(InstanceKlass* k) {
++  static InstanceKlass* old_if_redefining(InstanceKlass* k) {
+     return (k != NULL && k->is_redefining()) ? ((InstanceKlass* )k->old_version()) : k;
+   }
+ };
+diff --git a/src/hotspot/share/memory/universe.hpp b/src/hotspot/share/memory/universe.hpp
+index b32db16b9cf..742dada0e8f 100644
+--- a/src/hotspot/share/memory/universe.hpp
++++ b/src/hotspot/share/memory/universe.hpp
+@@ -52,13 +52,8 @@ class LatestMethodCache : public CHeapObj<mtClass> {
+   Klass*                _klass;
+   int                   _method_idnum;
+ 
+-  static bool _is_redefining_gc_run;
+-
+  public:
+ 
+-   static bool is_redefining_gc_run()               { return _is_redefining_gc_run; }
+-   static void set_redefining_gc_run(bool b)        { _is_redefining_gc_run = b;    }
+-
+   LatestMethodCache()   { _klass = NULL; _method_idnum = -1; }
+   ~LatestMethodCache()  { _klass = NULL; _method_idnum = -1; }
+ 
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0024-JBR-3111-Update-class-in-all-dictionaries-where-it-w.patch

@@ -0,0 +1,95 @@
+From dcb44f0e56dbc63b90d655b694a3f7751744fe53 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Sat, 13 Feb 2021 20:47:52 +0100
+Subject: [PATCH 24/28] JBR-3111 Update class in all dictionaries where it was
+ already defined
+
+This patch keeps compatibility with std redefinition, that does not
+create a new Klass, but modifies it, then it is modified in all
+dictionaries containing this class.
+---
+ src/hotspot/share/classfile/classLoaderData.cpp  | 9 +++++++++
+ src/hotspot/share/classfile/classLoaderData.hpp  | 3 +++
+ src/hotspot/share/classfile/dictionary.cpp       | 2 +-
+ src/hotspot/share/classfile/dictionary.hpp       | 2 +-
+ src/hotspot/share/classfile/systemDictionary.cpp | 4 +++-
+ 5 files changed, 17 insertions(+), 3 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 8b2deb70e1b..4e06b09e7d5 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
++++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -1274,6 +1274,15 @@ void ClassLoaderDataGraph::rollback_redefinition() {
+   }
+ }
+ 
++// (DCEVM) - iterate over all classes in all dictionaries
++bool ClassLoaderDataGraph::dictionary_classes_do_update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass) {
++  bool ok = false;
++  FOR_ALL_DICTIONARY(cld) {
++    ok = cld->dictionary()->update_klass(name, k, old_klass) || ok;
++  }
++  return ok;
++}
++
+ // Walks all entries in the dictionary including entries initiated by this class loader.
+ void ClassLoaderDataGraph::dictionary_all_entries_do(void f(InstanceKlass*, ClassLoaderData*)) {
+   Thread* thread = Thread::current();
+diff --git a/src/hotspot/share/classfile/classLoaderData.hpp b/src/hotspot/share/classfile/classLoaderData.hpp
+index 00a84610b43..16711dca237 100644
+--- a/src/hotspot/share/classfile/classLoaderData.hpp
++++ b/src/hotspot/share/classfile/classLoaderData.hpp
+@@ -130,6 +130,9 @@ class ClassLoaderDataGraph : public AllStatic {
+   // Enhanced class redefinition
+   static void rollback_redefinition();
+ 
++  // Enhanced class redefinition
++  static bool dictionary_classes_do_update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass);
++
+   // Iterate all classes and their class loaders, including initiating class loaders.
+   static void dictionary_all_entries_do(void f(InstanceKlass*, ClassLoaderData*));
+ 
+diff --git a/src/hotspot/share/classfile/dictionary.cpp b/src/hotspot/share/classfile/dictionary.cpp
+index 4e361d439f4..6c072407fd9 100644
+--- a/src/hotspot/share/classfile/dictionary.cpp
++++ b/src/hotspot/share/classfile/dictionary.cpp
+@@ -345,7 +345,7 @@ DictionaryEntry* Dictionary::get_entry(int index, unsigned int hash,
+ }
+ 
+ // (DCEVM) replace old_class by new class in dictionary
+-bool Dictionary::update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass) {
++bool Dictionary::update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass) {
+   // There are several entries for the same class in the dictionary: One extra entry for each parent classloader of the classloader of the class.
+   bool found = false;
+   for (int index = 0; index < table_size(); index++) {
+diff --git a/src/hotspot/share/classfile/dictionary.hpp b/src/hotspot/share/classfile/dictionary.hpp
+index f6e08e7bfd5..2932cc9c320 100644
+--- a/src/hotspot/share/classfile/dictionary.hpp
++++ b/src/hotspot/share/classfile/dictionary.hpp
+@@ -115,7 +115,7 @@ public:
+   void free_entry(DictionaryEntry* entry);
+ 
+   // Enhanced class redefinition
+-  bool update_klass(unsigned int hash, Symbol* name, ClassLoaderData* loader_data, InstanceKlass* k, InstanceKlass* old_klass);
++  bool update_klass(Symbol* name, InstanceKlass* k, InstanceKlass* old_klass);
+ 
+   void rollback_redefinition();
+ 
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index 9e0f4dd3c96..789b5fb1e6d 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -1606,7 +1606,9 @@ void SystemDictionary::define_instance_class(InstanceKlass* k, InstanceKlass* ol
+   Dictionary* dictionary = loader_data->dictionary();
+   unsigned int d_hash = dictionary->compute_hash(name_h);
+   if (is_redefining) {
+-    bool ok = dictionary->update_klass(d_hash, name_h, loader_data, k, old_klass);
++    // Update all dictionaries containing old_class to new_class
++    // outcome must be same as result of standard redefinition, that does not create a new Klass
++    bool ok = ClassLoaderDataGraph::dictionary_classes_do_update_klass(name_h, k, old_klass);
+     assert (ok, "must have found old class and updated!");
+   }
+   check_constraints(d_hash, k, class_loader_h, !is_redefining, CHECK);
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0025-JBR-3140-support-for-modularized-HotswapAgent.patch

@@ -0,0 +1,527 @@
+From b9692c48bdbad8474251cfe72ac85e5c7ff2847e Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Thu, 18 Jun 2020 18:40:11 +0200
+Subject: [PATCH 25/28] JBR-3140 - support for modularized HotswapAgent
+
+Add -XX:HotswapAgent=[disabled,fatjar.core]
+---
+ make/launcher/Launcher-java.base.gmk          |  1 -
+ make/launcher/Launcher-java.rmi.gmk           |  2 -
+ make/launcher/Launcher-java.scripting.gmk     |  3 +-
+ make/launcher/Launcher-java.security.jgss.gmk |  3 --
+ make/launcher/Launcher-jdk.aot.gmk            |  2 -
+ make/launcher/Launcher-jdk.compiler.gmk       |  5 +-
+ make/launcher/Launcher-jdk.hotspot.agent.gmk  |  1 -
+ make/launcher/Launcher-jdk.jartool.gmk        |  2 -
+ make/launcher/Launcher-jdk.javadoc.gmk        |  3 +-
+ make/launcher/Launcher-jdk.jcmd.gmk           | 13 +----
+ make/launcher/Launcher-jdk.jdeps.gmk          |  3 --
+ make/launcher/Launcher-jdk.jdi.gmk            |  1 -
+ make/launcher/Launcher-jdk.jlink.gmk          |  5 +-
+ make/launcher/Launcher-jdk.jshell.gmk         |  1 -
+ make/launcher/Launcher-jdk.jstatd.gmk         |  1 -
+ make/launcher/Launcher-jdk.pack.gmk           |  1 -
+ make/launcher/Launcher-jdk.rmic.gmk           |  1 -
+ .../Launcher-jdk.scripting.nashorn.shell.gmk  |  3 +-
+ src/hotspot/share/runtime/arguments.cpp       | 48 +++++++++++--------
+ .../runtime/flags/jvmFlagConstraintList.cpp   | 23 +++++++++
+ .../runtime/flags/jvmFlagConstraintList.hpp   |  1 +
+ .../flags/jvmFlagConstraintsRuntime.cpp       | 10 ++++
+ .../flags/jvmFlagConstraintsRuntime.hpp       |  1 +
+ src/hotspot/share/runtime/globals.hpp         | 12 ++++-
+ 24 files changed, 81 insertions(+), 65 deletions(-)
+
+diff --git a/make/launcher/Launcher-java.base.gmk b/make/launcher/Launcher-java.base.gmk
+index 38ba29530d8..f6d4aa28fe6 100644
+--- a/make/launcher/Launcher-java.base.gmk
++++ b/make/launcher/Launcher-java.base.gmk
+@@ -52,7 +52,6 @@ endif
+ 
+ $(eval $(call SetupBuildLauncher, keytool, \
+     MAIN_CLASS := sun.security.tools.keytool.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+ 
+ ################################################################################
+diff --git a/make/launcher/Launcher-java.rmi.gmk b/make/launcher/Launcher-java.rmi.gmk
+index 07046232275..a69a90bcc81 100644
+--- a/make/launcher/Launcher-java.rmi.gmk
++++ b/make/launcher/Launcher-java.rmi.gmk
+@@ -27,10 +27,8 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, rmid, \
+     MAIN_CLASS := sun.rmi.server.Activation, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, rmiregistry, \
+     MAIN_CLASS := sun.rmi.registry.RegistryImpl, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+diff --git a/make/launcher/Launcher-java.scripting.gmk b/make/launcher/Launcher-java.scripting.gmk
+index cf100e20789..057d2bf3aca 100644
+--- a/make/launcher/Launcher-java.scripting.gmk
++++ b/make/launcher/Launcher-java.scripting.gmk
+@@ -27,6 +27,5 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jrunscript, \
+     MAIN_CLASS := com.sun.tools.script.shell.Main, \
+-    JAVA_ARGS := --add-modules ALL-DEFAULT \
+-        -XX:+DisableHotswapAgent, \
++    JAVA_ARGS := --add-modules ALL-DEFAULT, \
+ ))
+diff --git a/make/launcher/Launcher-java.security.jgss.gmk b/make/launcher/Launcher-java.security.jgss.gmk
+index 2b856bfccb4..7411e1a21c4 100644
+--- a/make/launcher/Launcher-java.security.jgss.gmk
++++ b/make/launcher/Launcher-java.security.jgss.gmk
+@@ -28,16 +28,13 @@ include LauncherCommon.gmk
+ ifeq ($(OPENJDK_TARGET_OS), windows)
+   $(eval $(call SetupBuildLauncher, kinit, \
+       MAIN_CLASS := sun.security.krb5.internal.tools.Kinit, \
+-      JAVA_ARGS := -XX:+DisableHotswapAgent, \
+   ))
+ 
+   $(eval $(call SetupBuildLauncher, klist, \
+       MAIN_CLASS := sun.security.krb5.internal.tools.Klist, \
+-      JAVA_ARGS := -XX:+DisableHotswapAgent, \
+   ))
+ 
+   $(eval $(call SetupBuildLauncher, ktab, \
+       MAIN_CLASS := sun.security.krb5.internal.tools.Ktab, \
+-      JAVA_ARGS := -XX:+DisableHotswapAgent, \
+   ))
+ endif
+diff --git a/make/launcher/Launcher-jdk.aot.gmk b/make/launcher/Launcher-jdk.aot.gmk
+index 2c52c31a555..10717a5e1c5 100644
+--- a/make/launcher/Launcher-jdk.aot.gmk
++++ b/make/launcher/Launcher-jdk.aot.gmk
+@@ -31,7 +31,6 @@ include LauncherCommon.gmk
+ $(eval $(call SetupBuildLauncher, jaotc, \
+     MAIN_CLASS := jdk.tools.jaotc.Main, \
+     EXTRA_JAVA_ARGS := -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI \
+-        -XX:+DisableHotswapAgent \
+         --add-exports=jdk.internal.vm.ci/jdk.vm.ci.aarch64=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+         --add-exports=jdk.internal.vm.ci/jdk.vm.ci.amd64=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+         --add-exports=jdk.internal.vm.ci/jdk.vm.ci.code=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+@@ -41,7 +40,6 @@ $(eval $(call SetupBuildLauncher, jaotc, \
+         --add-exports=jdk.internal.vm.ci/jdk.vm.ci.hotspot=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+     , \
+     JAVA_ARGS := --add-exports=jdk.internal.vm.ci/jdk.vm.ci.hotspot.aarch64=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+-        -XX:+DisableHotswapAgent \
+         --add-exports=jdk.internal.vm.ci/jdk.vm.ci.hotspot.amd64=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+         --add-exports=jdk.internal.vm.ci/jdk.vm.ci.hotspot.aarch64=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+         --add-exports=jdk.internal.vm.ci/jdk.vm.ci.hotspot.sparc=$(call CommaList, jdk.internal.vm.compiler  jdk.aot) \
+diff --git a/make/launcher/Launcher-jdk.compiler.gmk b/make/launcher/Launcher-jdk.compiler.gmk
+index 744969546de..f71c37adf74 100644
+--- a/make/launcher/Launcher-jdk.compiler.gmk
++++ b/make/launcher/Launcher-jdk.compiler.gmk
+@@ -27,14 +27,12 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, javac, \
+    MAIN_CLASS := com.sun.tools.javac.Main, \
+-   JAVA_ARGS := --add-modules ALL-DEFAULT \
+-       -XX:+DisableHotswapAgent, \
++   JAVA_ARGS := --add-modules ALL-DEFAULT, \
+    CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, serialver, \
+     MAIN_CLASS := sun.tools.serialver.SerialVer, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+ 
+@@ -43,7 +41,6 @@ ifeq ($(ENABLE_SJAVAC), yes)
+   # into any real images
+   $(eval $(call SetupBuildLauncher, sjavac, \
+       MAIN_CLASS := com.sun.tools.sjavac.Main, \
+-      JAVA_ARGS := -XX:+DisableHotswapAgent, \
+       CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+       OUTPUT_DIR := $(JDK_OUTPUTDIR)/bin, \
+   ))
+diff --git a/make/launcher/Launcher-jdk.hotspot.agent.gmk b/make/launcher/Launcher-jdk.hotspot.agent.gmk
+index 9f12b05b172..76da3600368 100644
+--- a/make/launcher/Launcher-jdk.hotspot.agent.gmk
++++ b/make/launcher/Launcher-jdk.hotspot.agent.gmk
+@@ -27,6 +27,5 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jhsdb, \
+     MAIN_CLASS := sun.jvm.hotspot.SALauncher, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     MACOSX_PRIVILEGED := true, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.jartool.gmk b/make/launcher/Launcher-jdk.jartool.gmk
+index 647d82b65b1..f74e82bfdae 100644
+--- a/make/launcher/Launcher-jdk.jartool.gmk
++++ b/make/launcher/Launcher-jdk.jartool.gmk
+@@ -27,10 +27,8 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jar, \
+     MAIN_CLASS := sun.tools.jar.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jarsigner, \
+     MAIN_CLASS := sun.security.tools.jarsigner.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.javadoc.gmk b/make/launcher/Launcher-jdk.javadoc.gmk
+index c3d2093be04..889028a2b17 100644
+--- a/make/launcher/Launcher-jdk.javadoc.gmk
++++ b/make/launcher/Launcher-jdk.javadoc.gmk
+@@ -27,7 +27,6 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, javadoc, \
+     MAIN_CLASS := jdk.javadoc.internal.tool.Main, \
+-    JAVA_ARGS := --add-modules ALL-DEFAULT \
+-        -XX:+DisableHotswapAgent, \
++    JAVA_ARGS := --add-modules ALL-DEFAULT, \
+     CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.jcmd.gmk b/make/launcher/Launcher-jdk.jcmd.gmk
+index 761a52d8466..7117fa78059 100644
+--- a/make/launcher/Launcher-jdk.jcmd.gmk
++++ b/make/launcher/Launcher-jdk.jcmd.gmk
+@@ -30,7 +30,6 @@ $(eval $(call SetupBuildLauncher, jinfo, \
+     JAVA_ARGS := \
+         -Dsun.jvm.hotspot.debugger.useProcDebugger \
+         -Dsun.jvm.hotspot.debugger.useWindbgDebugger, \
+-        -XX:+DisableHotswapAgent, \
+     MACOSX_PRIVILEGED := true, \
+ ))
+ 
+@@ -38,36 +37,28 @@ $(eval $(call SetupBuildLauncher, jmap, \
+     MAIN_CLASS := sun.tools.jmap.JMap, \
+     JAVA_ARGS := \
+         -Dsun.jvm.hotspot.debugger.useProcDebugger \
+-        -Dsun.jvm.hotspot.debugger.useWindbgDebugger \
+-        -XX:+DisableHotswapAgent, \
++        -Dsun.jvm.hotspot.debugger.useWindbgDebugger, \
+     MACOSX_PRIVILEGED := true, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jps, \
+     MAIN_CLASS := sun.tools.jps.Jps, \
+-    JAVA_ARGS := \
+-        -XX:+DisableHotswapAgent, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jstack, \
+     MAIN_CLASS := sun.tools.jstack.JStack, \
+     JAVA_ARGS := \
+         -Dsun.jvm.hotspot.debugger.useProcDebugger \
+-        -Dsun.jvm.hotspot.debugger.useWindbgDebugger \
+-        -XX:+DisableHotswapAgent, \
++        -Dsun.jvm.hotspot.debugger.useWindbgDebugger, \
+     MACOSX_PRIVILEGED := true, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jstat, \
+     MAIN_CLASS := sun.tools.jstat.Jstat, \
+-    JAVA_ARGS := \
+-        -XX:+DisableHotswapAgent, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jcmd, \
+     MAIN_CLASS := sun.tools.jcmd.JCmd, \
+-    JAVA_ARGS := \
+-        -XX:+DisableHotswapAgent, \
+ ))
+ 
+ # Hook to include the corresponding custom file, if present.
+diff --git a/make/launcher/Launcher-jdk.jdeps.gmk b/make/launcher/Launcher-jdk.jdeps.gmk
+index 5448278dae7..217523c48cc 100644
+--- a/make/launcher/Launcher-jdk.jdeps.gmk
++++ b/make/launcher/Launcher-jdk.jdeps.gmk
+@@ -27,18 +27,15 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, javap, \
+     MAIN_CLASS := com.sun.tools.javap.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jdeps, \
+     MAIN_CLASS := com.sun.tools.jdeps.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jdeprscan, \
+     MAIN_CLASS := com.sun.tools.jdeprscan.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.jdi.gmk b/make/launcher/Launcher-jdk.jdi.gmk
+index 27bd448e3ae..fcce98cf430 100644
+--- a/make/launcher/Launcher-jdk.jdi.gmk
++++ b/make/launcher/Launcher-jdk.jdi.gmk
+@@ -27,5 +27,4 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jdb, \
+     MAIN_CLASS := com.sun.tools.example.debug.tty.TTY, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.jlink.gmk b/make/launcher/Launcher-jdk.jlink.gmk
+index 9e61edeb2c8..df2173996d7 100644
+--- a/make/launcher/Launcher-jdk.jlink.gmk
++++ b/make/launcher/Launcher-jdk.jlink.gmk
+@@ -27,21 +27,18 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jimage,\
+     MAIN_CLASS := jdk.tools.jimage.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DENABLE_ARG_FILES, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jlink,\
+     MAIN_CLASS := jdk.tools.jlink.internal.Main, \
+-    JAVA_ARGS :=  --add-modules ALL-DEFAULT \
+-        -XX:+DisableHotswapAgent, \
++    JAVA_ARGS :=  --add-modules ALL-DEFAULT, \
+     CFLAGS := -DENABLE_ARG_FILES \
+         -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+ 
+ $(eval $(call SetupBuildLauncher, jmod,\
+     MAIN_CLASS := jdk.tools.jmod.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DENABLE_ARG_FILES \
+         -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.jshell.gmk b/make/launcher/Launcher-jdk.jshell.gmk
+index 7287f8f998a..349eb88e9eb 100644
+--- a/make/launcher/Launcher-jdk.jshell.gmk
++++ b/make/launcher/Launcher-jdk.jshell.gmk
+@@ -27,6 +27,5 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jshell, \
+     MAIN_CLASS := jdk.internal.jshell.tool.JShellToolProvider, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.jstatd.gmk b/make/launcher/Launcher-jdk.jstatd.gmk
+index e1657910c67..e9286d63094 100644
+--- a/make/launcher/Launcher-jdk.jstatd.gmk
++++ b/make/launcher/Launcher-jdk.jstatd.gmk
+@@ -27,7 +27,6 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jstatd, \
+     MAIN_CLASS := sun.tools.jstatd.Jstatd, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+ 
+ # Hook to include the corresponding custom file, if present.
+diff --git a/make/launcher/Launcher-jdk.pack.gmk b/make/launcher/Launcher-jdk.pack.gmk
+index 64bbbb7c949..a93fd2a9017 100644
+--- a/make/launcher/Launcher-jdk.pack.gmk
++++ b/make/launcher/Launcher-jdk.pack.gmk
+@@ -28,7 +28,6 @@ include LauncherCommon.gmk
+ $(eval $(call SetupBuildLauncher, pack200, \
+     MAIN_MODULE := java.base, \
+     MAIN_CLASS := com.sun.java.util.jar.pack.Driver, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+ ))
+ 
+ ################################################################################
+diff --git a/make/launcher/Launcher-jdk.rmic.gmk b/make/launcher/Launcher-jdk.rmic.gmk
+index b8a55900b0e..d60c3d9b60b 100644
+--- a/make/launcher/Launcher-jdk.rmic.gmk
++++ b/make/launcher/Launcher-jdk.rmic.gmk
+@@ -27,6 +27,5 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, rmic, \
+     MAIN_CLASS := sun.rmi.rmic.Main, \
+-    JAVA_ARGS := -XX:+DisableHotswapAgent, \
+     CFLAGS := -DEXPAND_CLASSPATH_WILDCARDS, \
+ ))
+diff --git a/make/launcher/Launcher-jdk.scripting.nashorn.shell.gmk b/make/launcher/Launcher-jdk.scripting.nashorn.shell.gmk
+index bd39f8595b2..82311e69fd6 100644
+--- a/make/launcher/Launcher-jdk.scripting.nashorn.shell.gmk
++++ b/make/launcher/Launcher-jdk.scripting.nashorn.shell.gmk
+@@ -27,7 +27,6 @@ include LauncherCommon.gmk
+ 
+ $(eval $(call SetupBuildLauncher, jjs, \
+     MAIN_CLASS := jdk.nashorn.tools.jjs.Main, \
+-    JAVA_ARGS := --add-modules ALL-DEFAULT \
+-        -XX:+DisableHotswapAgent, \
++    JAVA_ARGS := --add-modules ALL-DEFAULT, \
+     CFLAGS := -DENABLE_ARG_FILES, \
+ ))
+diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
+index c5635bb8537..d7fee6a8c95 100644
+--- a/src/hotspot/share/runtime/arguments.cpp
++++ b/src/hotspot/share/runtime/arguments.cpp
+@@ -4310,11 +4310,17 @@ void Arguments::setup_hotswap_agent() {
+   if (DumpSharedSpaces)
+     return;
+ 
+-  if (!AllowEnhancedClassRedefinition)
++  if (HotswapAgent == NULL || strcmp(HotswapAgent, "disabled") == 0)
+     return;
+ 
++  // Force AllowEnhancedClassRedefinition if HA is enabled
++  AllowEnhancedClassRedefinition = true;
++
++  bool ha_fatjar = strcmp(HotswapAgent, "fatjar") == 0;
++  bool ha_core = strcmp(HotswapAgent, "core") == 0;
++
+   // Set HotswapAgent
+-  if (!DisableHotswapAgent) {
++  if (ha_fatjar || ha_core) {
+ 
+     char ext_path_str[JVM_MAXPATHLEN];
+ 
+@@ -4333,23 +4339,27 @@ void Arguments::setup_hotswap_agent() {
+       }
+     }
+     if (ext_path_length < JVM_MAXPATHLEN - 10) {
+-      jio_snprintf(ext_path_str + ext_path_length, sizeof(ext_path_str) - ext_path_length,
+-                   "%shotswap%shotswap-agent.jar", os::file_separator(), os::file_separator());
+-    }
+-
+-    int fd = ::open(ext_path_str, O_RDONLY);
+-    if (fd >= 0) {
+-      os::close(fd);
+-      size_t length = strlen(ext_path_str) + 1;
+-      char *options = NEW_C_HEAP_ARRAY(char,  length, mtArguments);
+-      jio_snprintf(options, length, "%s", ext_path_str);
+-      add_init_agent("instrument", ext_path_str, false);
+-      jio_fprintf(defaultStream::output_stream(), "Starting HotswapAgent '%s'\n", ext_path_str);
+-    }
+-//    else
+-//    {
+-//      jio_fprintf(defaultStream::error_stream(), "HotswapAgent not found on path:'%s'\n", ext_path_str);
+-//    }
++      if (ha_fatjar) {
++        jio_snprintf(ext_path_str + ext_path_length, sizeof(ext_path_str) - ext_path_length,
++                     "%shotswap%shotswap-agent.jar", os::file_separator(), os::file_separator());
++      } else {
++        jio_snprintf(ext_path_str + ext_path_length, sizeof(ext_path_str) - ext_path_length,
++                     "%shotswap%shotswap-agent-core.jar", os::file_separator(), os::file_separator());
++      }
++      int fd = ::open(ext_path_str, O_RDONLY);
++      if (fd >= 0) {
++        os::close(fd);
++        size_t length = strlen(ext_path_str) + 1;
++        char *options = NEW_C_HEAP_ARRAY(char,  length, mtArguments);
++        jio_snprintf(options, length, "%s", ext_path_str);
++        add_init_agent("instrument", ext_path_str, false);
++        jio_fprintf(defaultStream::output_stream(), "Starting HotswapAgent '%s'\n", ext_path_str);
++      }
++      else
++      {
++        jio_fprintf(defaultStream::error_stream(), "HotswapAgent not found on path:'%s'!\n", ext_path_str);
++      }
++    }
+   }
+ 
+   // TODO: open it only for org.hotswap.agent module
+diff --git a/src/hotspot/share/runtime/flags/jvmFlagConstraintList.cpp b/src/hotspot/share/runtime/flags/jvmFlagConstraintList.cpp
+index 16d8030fd1c..94044c4831c 100644
+--- a/src/hotspot/share/runtime/flags/jvmFlagConstraintList.cpp
++++ b/src/hotspot/share/runtime/flags/jvmFlagConstraintList.cpp
+@@ -199,6 +199,26 @@ public:
+   }
+ };
+ 
++class JVMFlagConstraint_ccstr : public JVMFlagConstraint {
++  JVMFlagConstraintFunc_ccstr _constraint;
++  const ccstr* _ptr;
++
++public:
++  // the "name" argument must be a string literal
++  JVMFlagConstraint_ccstr(const char* name, const ccstr* ptr,
++                                   JVMFlagConstraintFunc_ccstr func,
++                                 ConstraintType type) : JVMFlagConstraint(name, type), _constraint(func), _ptr(ptr) {}
++
++  JVMFlag::Error apply(bool verbose) {
++    ccstr value = *_ptr;
++    return _constraint(value, verbose);
++  }
++
++  JVMFlag::Error apply_ccstr(ccstr value, bool verbose) {
++    return _constraint(value, verbose);
++  }
++};
++
+ // No constraint emitting
+ void emit_constraint_no(...)                                                      { /* NOP */ }
+ 
+@@ -239,6 +259,9 @@ void emit_constraint_size_t(const char* name, const size_t* ptr, JVMFlagConstrai
+ void emit_constraint_double(const char* name, const double* ptr, JVMFlagConstraintFunc_double func, JVMFlagConstraint::ConstraintType type) {
+   JVMFlagConstraintList::add(new JVMFlagConstraint_double(name, ptr, func, type));
+ }
++void emit_constraint_ccstr(const char* name, ccstr* ptr, JVMFlagConstraintFunc_ccstr func, JVMFlagConstraint::ConstraintType type) {
++  JVMFlagConstraintList::add(new JVMFlagConstraint_ccstr(name, ptr, func, type));
++}
+ 
+ // Generate code to call emit_constraint_xxx function
+ #define EMIT_CONSTRAINT_PRODUCT_FLAG(type, name, value, doc)      ); emit_constraint_##type(#name,&name
+diff --git a/src/hotspot/share/runtime/flags/jvmFlagConstraintList.hpp b/src/hotspot/share/runtime/flags/jvmFlagConstraintList.hpp
+index 9c27f1db955..b644f7b817a 100644
+--- a/src/hotspot/share/runtime/flags/jvmFlagConstraintList.hpp
++++ b/src/hotspot/share/runtime/flags/jvmFlagConstraintList.hpp
+@@ -47,6 +47,7 @@ typedef JVMFlag::Error (*JVMFlagConstraintFunc_uintx)(uintx value, bool verbose)
+ typedef JVMFlag::Error (*JVMFlagConstraintFunc_uint64_t)(uint64_t value, bool verbose);
+ typedef JVMFlag::Error (*JVMFlagConstraintFunc_size_t)(size_t value, bool verbose);
+ typedef JVMFlag::Error (*JVMFlagConstraintFunc_double)(double value, bool verbose);
++typedef JVMFlag::Error (*JVMFlagConstraintFunc_ccstr)(ccstr value, bool verbose);
+ 
+ class JVMFlagConstraint : public CHeapObj<mtArguments> {
+ public:
+diff --git a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
+index 6559d4252f0..21afac72a2e 100644
+--- a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
++++ b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
+@@ -140,3 +140,13 @@ JVMFlag::Error ThreadLocalHandshakesConstraintFunc(bool value, bool verbose) {
+   }
+   return JVMFlag::SUCCESS;
+ }
++
++JVMFlag::Error HotswapAgentConstraintFunc(char const* value, bool verbose) {
++  if (value != NULL) {
++    if (strcmp("disabled", value) != 0 && strcmp("fatjar", value) != 0 && strcmp("core", value) != 0 && strcmp("external", value) != 0) {
++      JVMFlag::printError(verbose, "HotswapAgent(%s) must be one of disabled,fatjar,core or external.\n", value);
++      return JVMFlag::VIOLATES_CONSTRAINT;
++    }
++  }
++  return JVMFlag::SUCCESS;
++}
+diff --git a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp
+index 8763b83fd37..c9ed15a89e1 100644
+--- a/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp
++++ b/src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.hpp
+@@ -46,5 +46,6 @@ JVMFlag::Error PerfDataSamplingIntervalFunc(intx value, bool verbose);
+ 
+ JVMFlag::Error ThreadLocalHandshakesConstraintFunc(bool value, bool verbose);
+ 
++JVMFlag::Error HotswapAgentConstraintFunc(char const* value, bool verbose);
+ 
+ #endif /* SHARE_VM_RUNTIME_JVMFLAGCONSTRAINTSRUNTIME_HPP */
+diff --git a/src/hotspot/share/runtime/globals.hpp b/src/hotspot/share/runtime/globals.hpp
+index d4453de1ff5..8c41f0af888 100644
+--- a/src/hotspot/share/runtime/globals.hpp
++++ b/src/hotspot/share/runtime/globals.hpp
+@@ -2686,8 +2686,16 @@ define_pd_global(uint64_t,MaxRAM,                    1ULL*G);
+              "Allow enhanced class redefinition beyond swapping method "    \
+              "bodies")                                                      \
+                                                                             \
+-  product(bool, DisableHotswapAgent, DISABLED_HOTSWAP_AGENT,                \
+-             "Disable integrated Hotswap Agent (HotswapVM only)")
++  product(ccstr, HotswapAgent, "disabled",                                  \
++          "Specify HotswapAgent image to be used."                          \
++          "disabled: hotswap agent is disabled (default)"                   \
++          "fatjar: full HA. Use integrated hotswap-agent.jar"               \
++          "core: core HA. Use integrated hotswap-agent-core.jar"            \
++          "external: external HA. use external HA, open required JDK "      \
++          "modules.")                                                       \
++          constraint(HotswapAgentConstraintFunc, AfterErgo)
++
++
+ #define VM_FLAGS(develop,                                                   \
+                  develop_pd,                                                \
+                  product,                                                   \
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0026-Support-for-redefinition-of-Well-Known-classses-java.patch

@@ -0,0 +1,333 @@
+From f279999a412cc87c6f4a7eed7e1e2ad34655b4fe Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <vladimir.dvorak@jetbrains.com>
+Date: Mon, 8 Mar 2021 02:22:54 +0700
+Subject: [PATCH 26/28] Support for redefinition of Well Known classses
+ (java.*,jdk.*, sun.*)
+
+---
+ src/hotspot/share/ci/ciKlass.hpp              |  1 +
+ src/hotspot/share/ci/ciObjectFactory.cpp      | 34 +++++++++++
+ src/hotspot/share/ci/ciObjectFactory.hpp      |  6 ++
+ .../share/classfile/systemDictionary.cpp      | 10 +++
+ .../share/classfile/systemDictionary.hpp      |  2 +
+ src/hotspot/share/classfile/vmSymbols.hpp     |  2 +
+ src/hotspot/share/compiler/compileBroker.cpp  | 11 ++++
+ src/hotspot/share/memory/universe.cpp         |  8 +++
+ src/hotspot/share/memory/universe.hpp         |  3 +
+ .../prims/jvmtiEnhancedRedefineClasses.cpp    | 61 ++++++++++++++++++-
+ .../prims/jvmtiEnhancedRedefineClasses.hpp    |  2 +
+ 11 files changed, 139 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/ci/ciKlass.hpp b/src/hotspot/share/ci/ciKlass.hpp
+index 896f489453a..c610c365aba 100644
+--- a/src/hotspot/share/ci/ciKlass.hpp
++++ b/src/hotspot/share/ci/ciKlass.hpp
+@@ -129,6 +129,7 @@ public:
+   void print_name_on(outputStream* st);
+ 
+   const char* external_name() const;
++  Klass* new_version() { return get_Klass()->new_version(); }
+ };
+ 
+ #endif // SHARE_VM_CI_CIKLASS_HPP
+diff --git a/src/hotspot/share/ci/ciObjectFactory.cpp b/src/hotspot/share/ci/ciObjectFactory.cpp
+index 66bbe835e7b..107c16fa5cf 100644
+--- a/src/hotspot/share/ci/ciObjectFactory.cpp
++++ b/src/hotspot/share/ci/ciObjectFactory.cpp
+@@ -70,7 +70,10 @@ GrowableArray<ciMetadata*>* ciObjectFactory::_shared_ci_metadata = NULL;
+ ciSymbol*                 ciObjectFactory::_shared_ci_symbols[vmSymbols::SID_LIMIT];
+ int                       ciObjectFactory::_shared_ident_limit = 0;
+ volatile bool             ciObjectFactory::_initialized = false;
++volatile bool             ciObjectFactory::_reinitialize_wk_klasses = false;
+ 
++// TODO: review...
++Arena* ciObjectFactory::_initial_arena = NULL;
+ 
+ // ------------------------------------------------------------------
+ // ciObjectFactory::ciObjectFactory
+@@ -112,6 +115,7 @@ void ciObjectFactory::initialize() {
+   // compiler thread that initializes the initial ciObjectFactory which
+   // creates the shared ciObjects that all later ciObjectFactories use.
+   Arena* arena = new (mtCompiler) Arena(mtCompiler);
++  ciObjectFactory::_initial_arena = arena;
+   ciEnv initial(arena);
+   ciEnv* env = ciEnv::current();
+   env->_factory->init_shared_objects();
+@@ -120,6 +124,36 @@ void ciObjectFactory::initialize() {
+ 
+ }
+ 
++// (DCEVM) wk classes could be modified
++void ciObjectFactory::reinitialize_wk_classes() {
++  ASSERT_IN_VM;
++  JavaThread* thread = JavaThread::current();
++  HandleMark  handle_mark(thread);
++
++  // This Arena is long lived and exists in the resource mark of the
++  // compiler thread that initializes the initial ciObjectFactory which
++  // creates the shared ciObjects that all later ciObjectFactories use.
++  // Arena* arena = new (mtCompiler) Arena(mtCompiler);
++  ciEnv initial(ciObjectFactory::_initial_arena);
++  ciEnv* env = ciEnv::current();
++  env->_factory->do_reinitialize_wk_classes();
++  _reinitialize_wk_klasses = false;
++}
++
++// (DCEVM) wk classes could be modified
++void ciObjectFactory::do_reinitialize_wk_classes() {
++#define WK_KLASS_DEFN(name, ignore_s, opt)   \
++  if (ciEnv::_##name != NULL && ciEnv::_##name->new_version() != NULL) { \
++    int old_ident = ciEnv::_##name->ident(); \
++    ciEnv::_##name = get_metadata(SystemDictionary::name())->as_instance_klass(); \
++    ciEnv::_##name->compute_nonstatic_fields(); \
++    ciEnv::_##name->set_ident(old_ident); \
++  }
++
++  WK_KLASSES_DO(WK_KLASS_DEFN)
++#undef WK_KLASS_DEFN
++}
++
+ void ciObjectFactory::init_shared_objects() {
+ 
+   _next_ident = 1;  // start numbering CI objects at 1
+diff --git a/src/hotspot/share/ci/ciObjectFactory.hpp b/src/hotspot/share/ci/ciObjectFactory.hpp
+index 3e9d48c4cdc..79059f6e2e8 100644
+--- a/src/hotspot/share/ci/ciObjectFactory.hpp
++++ b/src/hotspot/share/ci/ciObjectFactory.hpp
+@@ -41,9 +41,11 @@ class ciObjectFactory : public ResourceObj {
+ 
+ private:
+   static volatile bool _initialized;
++  static volatile bool _reinitialize_wk_klasses;
+   static GrowableArray<ciMetadata*>* _shared_ci_metadata;
+   static ciSymbol*                 _shared_ci_symbols[];
+   static int                       _shared_ident_limit;
++  static Arena*                    _initial_arena;
+ 
+   Arena*                    _arena;
+   GrowableArray<ciMetadata*>*        _ci_metadata;
+@@ -89,10 +91,14 @@ private:
+   ciInstance* get_unloaded_instance(ciInstanceKlass* klass);
+ 
+   static int compare_cimetadata(ciMetadata** a, ciMetadata** b);
++  void do_reinitialize_wk_classes();
+ public:
+   static bool is_initialized() { return _initialized; }
++  static bool is_reinitialize_wk_klasses() { return _reinitialize_wk_klasses; }
++  static void set_reinitialize_wk_klasses() { _reinitialize_wk_klasses = true; }
+ 
+   static void initialize();
++  static void reinitialize_wk_classes();
+   void init_shared_objects();
+   void remove_symbols();
+ 
+diff --git a/src/hotspot/share/classfile/systemDictionary.cpp b/src/hotspot/share/classfile/systemDictionary.cpp
+index 789b5fb1e6d..25e577a664c 100644
+--- a/src/hotspot/share/classfile/systemDictionary.cpp
++++ b/src/hotspot/share/classfile/systemDictionary.cpp
+@@ -1983,6 +1983,16 @@ bool SystemDictionary::is_well_known_klass(Symbol* class_name) {
+ }
+ #endif
+ 
++bool SystemDictionary::update_well_known_klass(InstanceKlass* old_klass, InstanceKlass* new_klass) {
++  for (int id = FIRST_WKID; id < WKID_LIMIT; id++) {
++    if (well_known_klass((WKID) id) == old_klass) {
++      *well_known_klass_addr((WKID)id) = new_klass;
++      return true;
++    }
++  }
++  return false;
++}
++
+ bool SystemDictionary::resolve_wk_klass(WKID id, int init_opt, TRAPS) {
+   assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
+   int  info = wk_init_info[id - FIRST_WKID];
+diff --git a/src/hotspot/share/classfile/systemDictionary.hpp b/src/hotspot/share/classfile/systemDictionary.hpp
+index 1dbbffa197f..4220978a025 100644
+--- a/src/hotspot/share/classfile/systemDictionary.hpp
++++ b/src/hotspot/share/classfile/systemDictionary.hpp
+@@ -467,6 +467,8 @@ public:
+   static bool is_well_known_klass(Symbol* class_name);
+ #endif
+ 
++  static bool update_well_known_klass(InstanceKlass* new_klass, InstanceKlass* old_klass);
++
+   // Enhanced class redefinition
+   static void remove_from_hierarchy(InstanceKlass* k);
+   static void update_constraints_after_redefinition();
+diff --git a/src/hotspot/share/classfile/vmSymbols.hpp b/src/hotspot/share/classfile/vmSymbols.hpp
+index 2409af9b06e..daaa8d12375 100644
+--- a/src/hotspot/share/classfile/vmSymbols.hpp
++++ b/src/hotspot/share/classfile/vmSymbols.hpp
+@@ -355,6 +355,8 @@
+   template(exit_method_name,                          "exit")                                     \
+   template(add_method_name,                           "add")                                      \
+   template(remove_method_name,                        "remove")                                   \
++  template(registerNatives_method_name,               "registerNatives")                          \
++  template(initIDs_method_name,                       "initIDs")                                  \
+   template(parent_name,                               "parent")                                   \
+   template(threads_name,                              "threads")                                  \
+   template(groups_name,                               "groups")                                   \
+diff --git a/src/hotspot/share/compiler/compileBroker.cpp b/src/hotspot/share/compiler/compileBroker.cpp
+index 765b8ffa4dc..25271feb41f 100644
+--- a/src/hotspot/share/compiler/compileBroker.cpp
++++ b/src/hotspot/share/compiler/compileBroker.cpp
+@@ -1877,6 +1877,17 @@ void CompileBroker::compiler_thread_loop() {
+       if (method()->number_of_breakpoints() == 0) {
+         // Compile the method.
+         if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) {
++
++          // TODO: review usage of CompileThread_lock (DCEVM)
++          if (ciObjectFactory::is_reinitialize_wk_klasses())
++          {
++            ASSERT_IN_VM;
++            MutexLocker only_one (CompileThread_lock, thread);
++            if (ciObjectFactory::is_reinitialize_wk_klasses()) {
++              ciObjectFactory::reinitialize_wk_classes();
++            }
++          }
++
+           invoke_compiler_on_method(task);
+           thread->start_idle_timer();
+         } else {
+diff --git a/src/hotspot/share/memory/universe.cpp b/src/hotspot/share/memory/universe.cpp
+index 3dc4cc1323c..6b88271b5ef 100644
+--- a/src/hotspot/share/memory/universe.cpp
++++ b/src/hotspot/share/memory/universe.cpp
+@@ -1030,6 +1030,14 @@ void Universe::initialize_known_methods(TRAPS) {
+                           vmSymbols::doStackWalk_signature(), false, CHECK);
+ }
+ 
++void Universe::reinitialize_loader_addClass_method(TRAPS) {
++  // Set up method for registering loaded classes in class loader vector
++  initialize_known_method(_loader_addClass_cache,
++                          SystemDictionary::ClassLoader_klass(),
++                          "addClass",
++                          vmSymbols::class_void_signature(), false, CHECK);
++}
++
+ void universe2_init() {
+   EXCEPTION_MARK;
+   Universe::genesis(CATCH);
+diff --git a/src/hotspot/share/memory/universe.hpp b/src/hotspot/share/memory/universe.hpp
+index 742dada0e8f..d1af82b5fa7 100644
+--- a/src/hotspot/share/memory/universe.hpp
++++ b/src/hotspot/share/memory/universe.hpp
+@@ -349,6 +349,9 @@ class Universe: AllStatic {
+   // Function to initialize these
+   static void initialize_known_methods(TRAPS);
+ 
++  // Enhanced class redefinition
++  static void reinitialize_loader_addClass_method(TRAPS);
++
+   static oop          null_ptr_exception_instance()   { return _null_ptr_exception_instance;   }
+   static oop          arithmetic_exception_instance() { return _arithmetic_exception_instance; }
+   static oop          virtual_machine_error_instance() { return _virtual_machine_error_instance; }
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index f4bde7504c8..80d4e68ccae 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -497,6 +497,16 @@ void VM_EnhancedRedefineClasses::doit() {
+     redefine_single_class(_new_classes->at(i), thread);
+   }
+ 
++  // Update possible redefinition of well-known classes (like ClassLoader)
++  for (int i = 0; i < _new_classes->length(); i++) {
++    InstanceKlass* cur = _new_classes->at(i);
++    if (cur->old_version() != NULL && SystemDictionary::update_well_known_klass(InstanceKlass::cast(cur->old_version()), cur))
++    {
++      log_trace(redefine, class, obsolete, metadata)("Well known class updated %s", cur->external_name());
++      ciObjectFactory::set_reinitialize_wk_klasses();
++    }
++  }
++
+   // Deoptimize all compiled code that depends on this class (do only once, because it clears whole cache)
+   // if (_max_redefinition_flags > Klass::ModifyClass) {
+     flush_dependent_code(NULL, thread);
+@@ -672,12 +682,56 @@ void VM_EnhancedRedefineClasses::doit() {
+   _timer_vm_op_doit.stop();
+ }
+ 
++void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
++  if (!_new_classes->is_empty()) {
++    ResourceMark rm(Thread::current());
++
++    for (int i = 0; i < _new_classes->length(); i++) {
++      InstanceKlass* cur = _new_classes->at(i);
++
++      if (cur->name()->starts_with("java/") || cur->name()->starts_with("jdk/") || cur->name()->starts_with("sun/")) {
++
++        if (cur == SystemDictionary::ClassLoader_klass()) {
++          // ClassLoader.addClass method is cached in Universe, we must redefine
++          Universe::reinitialize_loader_addClass_method(Thread::current());
++          log_trace(redefine, class, obsolete, metadata)("Reinitialize ClassLoade addClass method cache.");
++        }
++
++        // naive assumptions that only JDK classes has native static "registerNative" and "initIDs" methods
++        int end;
++        Symbol* signature = vmSymbols::registerNatives_method_name();
++        int midx = cur->find_method_by_name(signature, &end);
++        if (midx == -1) {
++          signature = vmSymbols::initIDs_method_name();
++          midx = cur->find_method_by_name(signature, &end);
++        }
++        Method* m = NULL;
++        if (midx != -1) {
++          m = cur->methods()->at(midx);
++        }
++        if (m != NULL && m->is_static() && m->is_native()) {
++          // call static registerNative if present
++          JavaValue result(T_VOID);
++          JavaCalls::call_static(&result,
++                                  cur,
++                                  signature,
++                                  vmSymbols::void_method_signature(),
++                                  Thread::current());
++          log_trace(redefine, class, obsolete, metadata)("Reregister natives of JDK class %s", cur->external_name());
++        }
++      }
++    }
++  }
++}
++
+ // Cleanup - runs in JVM thread
+ //  - free used memory
+ //  - end GC
+ void VM_EnhancedRedefineClasses::doit_epilogue() {
+   VM_GC_Operation::doit_epilogue();
+ 
++  reinitializeJDKClasses();
++
+   if (_new_classes != NULL) {
+     delete _new_classes;
+   }
+@@ -1589,7 +1643,12 @@ void VM_EnhancedRedefineClasses::check_methods_and_mark_as_obsolete() {
+ 
+       // obsolete methods need a unique idnum so they become new entries in
+       // the jmethodID cache in InstanceKlass
+-      assert(old_method->method_idnum() == new_method->method_idnum(), "must match");
++      if (old_method->method_idnum() != new_method->method_idnum()) {
++        log_error(redefine, class, normalize)
++          ("Method not matched: %d != %d  old: %s = new: %s",  old_method->method_idnum(), new_method->method_idnum(),
++              old_method->name_and_sig_as_C_string(), new_method->name_and_sig_as_C_string());
++        // assert(old_method->method_idnum() == new_method->method_idnum(), "must match");
++      }
+ //      u2 num = InstanceKlass::cast(_the_class_oop)->next_method_idnum();
+ //      if (num != ConstMethod::UNSET_IDNUM) {
+ //        old_method->set_method_idnum(num);
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+index 4c0412d343d..79ea17b0d47 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.hpp
+@@ -141,6 +141,8 @@ class VM_EnhancedRedefineClasses: public VM_GC_Operation {
+ 
+   void flush_dependent_code(InstanceKlass* k_h, TRAPS);
+ 
++  void reinitializeJDKClasses();
++
+   static void check_class(InstanceKlass* k_oop, TRAPS);
+ 
+   static void dump_methods();
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0027-JBR-3458-Skip-dynamic-proxy-classes-based-on-com.sun.patch

@@ -0,0 +1,27 @@
+From 416d06e7e5f3517e9303b0b5a705888e4db740bd Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Fri, 19 Mar 2021 19:13:38 +0100
+Subject: [PATCH 27/28] JBR-3458: Skip dynamic proxy classes based on
+ com.sun.proxy
+
+---
+ src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 80d4e68ccae..10c375d601c 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -689,7 +689,8 @@ void VM_EnhancedRedefineClasses::reinitializeJDKClasses() {
+     for (int i = 0; i < _new_classes->length(); i++) {
+       InstanceKlass* cur = _new_classes->at(i);
+ 
+-      if (cur->name()->starts_with("java/") || cur->name()->starts_with("jdk/") || cur->name()->starts_with("sun/")) {
++      if ((cur->name()->starts_with("java/") || cur->name()->starts_with("jdk/") || cur->name()->starts_with("sun/"))
++          && cur->name()->index_of_at(0, "$$") == -1) { // skip dynamic proxies
+ 
+         if (cur == SystemDictionary::ClassLoader_klass()) {
+           // ClassLoader.addClass method is cached in Universe, we must redefine
+-- 
+2.23.0
+

jb/project/tools/patches/dcevm/0028-JBR-3459-Fix-race-condition-in-ClassLoaderDataGraph-.patch

@@ -0,0 +1,79 @@
+From 88e0325768b074607f5f9edfbb7f8e4a76159942 Mon Sep 17 00:00:00 2001
+From: Vladimir Dvorak <lada.dvorak7@gmail.com>
+Date: Sat, 20 Mar 2021 20:51:08 +0100
+Subject: [PATCH 28/28] JBR-3459: Fix race condition in
+ ClassLoaderDataGraph::classes_do
+
+InstanceKlass in ClassLoaderData can be uninitialized when
+ClassLoaderDataGraph::classes_do is called. Using
+ClassLoaderDataGraph::dictionary_classes_do is safe but problem is still
+persisting with anonymous classes.
+---
+ src/hotspot/share/classfile/classLoaderData.cpp     | 10 ++++++++++
+ src/hotspot/share/classfile/classLoaderData.hpp     |  4 ++++
+ .../share/prims/jvmtiEnhancedRedefineClasses.cpp    | 13 +++++++++++--
+ 3 files changed, 25 insertions(+), 2 deletions(-)
+
+diff --git a/src/hotspot/share/classfile/classLoaderData.cpp b/src/hotspot/share/classfile/classLoaderData.cpp
+index 4e06b09e7d5..f319cca3b2b 100644
+--- a/src/hotspot/share/classfile/classLoaderData.cpp
++++ b/src/hotspot/share/classfile/classLoaderData.cpp
+@@ -1166,6 +1166,16 @@ void ClassLoaderDataGraph::classes_do(KlassClosure* klass_closure) {
+   }
+ }
+ 
++void ClassLoaderDataGraph::anonymous_classes_do(KlassClosure* klass_closure) {
++  Thread* thread = Thread::current();
++  for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
++    if (cld->is_anonymous()) {
++      Handle holder(thread, cld->holder_phantom());
++      cld->classes_do(klass_closure);
++    }
++  }
++}
++
+ void ClassLoaderDataGraph::classes_do(void f(Klass* const)) {
+   Thread* thread = Thread::current();
+   for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
+diff --git a/src/hotspot/share/classfile/classLoaderData.hpp b/src/hotspot/share/classfile/classLoaderData.hpp
+index 16711dca237..b10fafa01e5 100644
+--- a/src/hotspot/share/classfile/classLoaderData.hpp
++++ b/src/hotspot/share/classfile/classLoaderData.hpp
+@@ -108,6 +108,10 @@ class ClassLoaderDataGraph : public AllStatic {
+   // for redefinition.  These classes are removed during the next class unloading.
+   // Walking the ClassLoaderDataGraph also includes anonymous classes.
+   static void classes_do(KlassClosure* klass_closure);
++
++  // Enhanced class redefinition
++  static void anonymous_classes_do(KlassClosure* klass_closure);
++
+   static void classes_do(void f(Klass* const));
+   static void methods_do(void f(Method*));
+   static void modules_do(void f(ModuleEntry*));
+diff --git a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+index 10c375d601c..5de5f78aea0 100644
+--- a/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
++++ b/src/hotspot/share/prims/jvmtiEnhancedRedefineClasses.cpp
+@@ -2130,8 +2130,17 @@ jvmtiError VM_EnhancedRedefineClasses::find_sorted_affected_classes(TRAPS) {
+   AffectedKlassClosure closure(_affected_klasses);
+   // Updated in j10, from original SystemDictionary::classes_do
+ 
+-  ClassLoaderDataGraph::classes_do(&closure);
+-  //ClassLoaderDataGraph::dictionary_classes_do(&closure);
++  // 0. we can't use ClassLoaderDataGraph::classes_do since classes can be uninitialized in cld,
++  // fully initialized class is in system dictionary
++  // ClassLoaderDataGraph::classes_do(&closure);
++
++  // 1. Scan over dictionaries
++  ClassLoaderDataGraph::dictionary_classes_do(&closure);
++
++  // 2. Anonymous class is not in dictionary, we have to iterate anonymous cld directly, but there is race cond...
++  // TODO: review ... anonymous class is added to cld before InstanceKlass initialization,
++  //                  find out how to check if the InstanceKlass is initialized
++  ClassLoaderDataGraph::anonymous_classes_do(&closure);
+ 
+   log_trace(redefine, class, load)("%d classes affected", _affected_klasses->length());
+ 
+-- 
+2.23.0
+

jb/project/tools/windows/scripts/mkimages_aarch64.sh

@@ -0,0 +1,142 @@
+#!/bin/bash -x
+
+# The following parameters must be specified:
+#   JBSDK_VERSION    - specifies major version of OpenJDK e.g. 11_0_6 (instead of dots '.' underbars "_" are used)
+#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        jcef - the release bundles with jcef
+#                        dcevm - the release bundles with dcevm patches
+#                        nomod - the release bundles without any additional modules (jcef)
+#                        fd - the fastdebug bundles which also include the jcef module
+#
+# jbrsdk-${JBSDK_VERSION}-windows-aarch64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-windows-aarch64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
+#
+# Environment variables:
+#   MODULAR_SDK_PATH - specifies the path to the directory where imported modules are located.
+#                      By default imported modules should be located in ./modular-sdk.
+#   JCEF_PATH        - specifies the path to the directory with JCEF binaries.
+#                      By default JCEF binaries should be located in ./jcef_win_aarch64.
+#   BOOT_JDK         - specifies the path to the directory with a ready build of OpenJDK 11 with
+#                      the same architecture as the build system. It will be used as the boot jdk.
+
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+bundle_type=$4
+JBSDK_VERSION_WITH_DOTS=$(echo $JBSDK_VERSION | sed 's/_/\./g')
+WORK_DIR=$(pwd)
+WITH_IMPORT_MODULES="--with-import-modules=${MODULAR_SDK_PATH:=${WORK_DIR}/modular-sdk}"
+JCEF_PATH=${JCEF_PATH:=${WORK_DIR}/jcef_win_aarch64}
+TOOLCHAIN_VERSION=${TOOLCHAIN_VERSION:=2019}
+
+source jb/project/tools/common.sh
+
+function create_jbr {
+
+  JBR_BUNDLE=jbr_${bundle_type}
+
+  case "${bundle_type}" in
+  "jcef" | "dcevm" | "nomod" | "fd")
+    JBR_BASE_NAME=jbr_${bundle_type}-${JBSDK_VERSION}
+    ;;
+  *)
+    echo "***ERR*** bundle was not specified" && do_exit 1
+    ;;
+  esac
+
+  echo "Exclude jdk.internal.vm.compiler and jdk.aot (because aot is not supported yet)"
+  cat modules.list | \
+    grep -v "jdk.internal.vm.compiler\|jdk.aot" \
+    > modules_tmp.list
+
+  rm -rf ${JBR_BUNDLE}
+
+  echo Running jlink....
+  ${BOOT_JDK}/bin/jlink \
+    --module-path ${JSDK}/jmods --no-man-pages --compress=2 \
+    --add-modules $(xargs < modules_tmp.list | sed 's/ //g' | sed 's/,\?$//g') --output ${JBR_BUNDLE} || do_exit $?
+  if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]
+  then
+    rsync -av ${JCEF_PATH}/ ${JBR_BUNDLE}/bin --exclude="modular-sdk" || do_exit $?
+  fi
+  echo Modifying release info ...
+  cat ${JSDK}/release | tr -d '\r' | grep -v 'JAVA_VERSION' | grep -v 'MODULES' >> ${JBR_BUNDLE}/release
+}
+
+JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
+WITH_DEBUG_LEVEL="--with-debug-level=release"
+RELEASE_NAME=windows-aarch64-normal-server-release
+JBSDK=${JBRSDK_BASE_NAME}-windows-aarch64-b${build_number}
+case "$bundle_type" in
+  "jcef")
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "dcevm")
+    HEAD_REVISION=$(git rev-parse HEAD)
+    git am jb/project/tools/patches/dcevm/*.patch || do_exit $?
+    do_reset_dcevm=1
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    ;;
+  "nomod")
+    WITH_IMPORT_MODULES=""
+    ;;
+  "fd")
+    git apply -p0 < jb/project/tools/patches/add_jcef_module.patch || do_exit $?
+    do_reset_changes=1
+    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
+    RELEASE_NAME=windows-aarch64-normal-server-fastdebug
+    JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}-fastdebug
+    JBSDK=${JBRSDK_BASE_NAME}-windows-aarch64-fastdebug-b${build_number}
+    ;;
+  *)
+    echo "***ERR*** bundle was not specified" && do_exit 1
+    ;;
+esac
+
+sh ./configure \
+  --openjdk-target=aarch64-unknown-cygwin \
+  --disable-warnings-as-errors \
+  $WITH_DEBUG_LEVEL \
+  --with-vendor-name="${VENDOR_NAME}" \
+  --with-vendor-version-string="${VENDOR_VERSION_STRING}" \
+  --with-jvm-features=shenandoahgc \
+  --with-version-pre= \
+  --with-version-build=${JDK_BUILD_NUMBER} \
+  --with-version-opt=b${build_number} \
+  $WITH_IMPORT_MODULES \
+  --with-toolchain-version=${TOOLCHAIN_VERSION} \
+  --with-boot-jdk=${BOOT_JDK} \
+  --with-build-jdk=${BOOT_JDK} \
+  --disable-ccache \
+  --enable-cds=yes || do_exit $?
+
+if [ "${bundle_type}" == "jcef" ]; then
+  make LOG=info clean images test-image CONF=$RELEASE_NAME || do_exit $?
+else
+  make LOG=info clean images CONF=$RELEASE_NAME || do_exit $?
+fi
+
+JSDK=build/$RELEASE_NAME/images/jdk
+BASE_DIR=build/$RELEASE_NAME/images
+JBRSDK_BUNDLE=jbrsdk
+
+rm -rf ${BASE_DIR}/${JBRSDK_BUNDLE} && rsync -a --exclude demo --exclude sample ${JSDK}/ ${JBRSDK_BUNDLE} || do_exit $?
+if [[ "${bundle_type}" == *jcef* ]] || [[ "${bundle_type}" == *dcevm* ]] || [[ "${bundle_type}" == fd ]]
+then
+  rsync -av ${JCEF_PATH}/ ${JBRSDK_BUNDLE}/bin --exclude='modular-sdk' || do_exit $?
+  sed 's/JBR/JBRSDK/g' ${JSDK}/release > release
+  mv release ${JBRSDK_BUNDLE}/release
+fi
+
+create_jbr || do_exit $?
+
+do_exit 0

jb/project/tools/windows/scripts/pack_aarch64.sh

@@ -0,0 +1,83 @@
+#!/bin/bash -x
+
+# The following parameters must be specified:
+#   JBSDK_VERSION    - specifies major version of OpenJDK e.g. 11_0_6 (instead of dots '.' underbars "_" are used)
+#   JDK_BUILD_NUMBER - specifies update release of OpenJDK build or the value of --with-version-build argument to configure
+#   build_number     - specifies the number of JetBrainsRuntime build
+#   bundle_type      - specifies bundle to be built; possible values:
+#                        jcef - the release bundles with jcef
+#                        dcevm - the release bundles with dcevm patches
+#                        nomod - the release bundles without any additional modules (jcef)
+#                        fd - the fastdebug bundles which also include the jcef module
+#
+# jbrsdk-${JBSDK_VERSION}-windows-aarch64-b${build_number}.tar.gz
+# jbr-${JBSDK_VERSION}-windows-aarch64-b${build_number}.tar.gz
+#
+# $ ./java --version
+# openjdk 11.0.6 2020-01-14
+# OpenJDK Runtime Environment (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number})
+# OpenJDK 64-Bit Server VM (build 11.0.6+${JDK_BUILD_NUMBER}-b${build_number}, mixed mode)
+#
+# Environment variables:
+#   MODULAR_SDK_PATH - specifies the path to the directory where imported modules are located.
+#                      By default imported modules should be located in ./modular-sdk.
+#   JCEF_PATH        - specifies the path to the directory with JCEF binaries.
+#                      By default JCEF binaries should be located in ./jcef_win_aarch64.
+
+JBSDK_VERSION=$1
+JDK_BUILD_NUMBER=$2
+build_number=$3
+bundle_type=$4
+
+source jb/project/tools/common.sh
+
+function pack_jbr {
+
+  JBR_BUNDLE=jbr_${bundle_type}
+
+  case "${bundle_type}" in
+  "jcef" | "dcevm" | "nomod" | "fd")
+    JBR_BASE_NAME=jbr_${bundle_type}-${JBSDK_VERSION}
+    ;;
+  *)
+    echo "***ERR*** bundle was not specified" && do_exit 1
+    ;;
+  esac
+
+  JBR=$JBR_BASE_NAME-windows-aarch64-b$build_number
+  echo Creating $JBR.tar.gz ...
+  chmod -R ug+rwx,o+rx ${BASE_DIR}/${JBR_BUNDLE}
+  cp -R ${BASE_DIR}/${JBR_BUNDLE} ${BASE_DIR}/jbr
+  /usr/bin/tar -czf $JBR.tar.gz -C $BASE_DIR jbr || do_exit $?
+}
+
+JBRSDK_BASE_NAME=jbrsdk-${JBSDK_VERSION}
+WITH_DEBUG_LEVEL="--with-debug-level=release"
+RELEASE_NAME=windows-aarch64-normal-server-release
+JBSDK=${JBRSDK_BASE_NAME}-windows-aarch64-b${build_number}
+case "$bundle_type" in
+  "fd")
+    WITH_DEBUG_LEVEL="--with-debug-level=fastdebug"
+    RELEASE_NAME=windows-aarch64-normal-server-fastdebug
+    JBSDK=${JBRSDK_BASE_NAME}-windows-aarch64-fastdebug-b${build_number}
+    ;;
+esac
+
+IMAGES_DIR=build/$RELEASE_NAME/images
+JSDK=$IMAGES_DIR/jdk
+BASE_DIR=.
+
+if [ "${bundle_type}" == "jcef" ] || [ "${bundle_type}" == "fd" ]; then
+  JBRSDK_BUNDLE=jbrsdk
+  echo Creating $JBSDK.tar.gz ...
+  [ -f "$JBSDK.tar.gz" ] && rm "$JBSDK.tar.gz"
+  /usr/bin/tar -czf $JBSDK.tar.gz $JBRSDK_BUNDLE || do_exit $?
+fi
+
+pack_jbr $bundle_type
+
+if [ "$bundle_type" == "jcef" ]; then
+  JBRSDK_TEST=$JBRSDK_BASE_NAME-windows-test-aarch64-b$build_number
+  echo Creating $JBRSDK_TEST.tar.gz ...
+  /usr/bin/tar -czf $JBRSDK_TEST.tar.gz -C $IMAGES_DIR --exclude='test/jdk/demos' test || do_exit $?
+fi

make/Docs.gmk

@@ -168,14 +168,6 @@ JAVADOC_TOP := \
     font-family: DejaVu Sans, Arial, Helvetica, sans-serif; \
     font-weight: normal;">$(DRAFT_TEXT)</div>
 
-JDK_INDEX_CONTENT := \
-    <!DOCTYPE html> \
-    <html lang="en"> \
-    <head> \
-    <meta http-equiv="refresh" content="0;url=api/index.html"> \
-    </head> \
-    </html>
-
 ################################################################################
 # JDK javadoc titles/text snippets
 
@@ -485,14 +477,7 @@ $(eval $(call SetupApiDocsGeneration, REFERENCE_API, \
 
 ################################################################################
 
-JDK_INDEX_HTML := $(DOCS_OUTPUTDIR)/index.html
-
-$(JDK_INDEX_HTML):
-	$(ECHO) '$(JDK_INDEX_CONTENT)' > $@
-
-JDK_INDEX_TARGETS += $(JDK_INDEX_HTML)
-
-# Copy the global resources
+# Copy the global resources, including the top-level redirect index.html
 GLOBAL_SPECS_RESOURCES_DIR := $(TOPDIR)/make/data/docs-resources/
 $(eval $(call SetupCopyFiles, COPY_GLOBAL_RESOURCES, \
     SRC := $(GLOBAL_SPECS_RESOURCES_DIR), \

make/RunTests.gmk

@@ -532,6 +532,7 @@ define SetupRunGtestTestBody
 	    $$(FIXPATH) $$(TEST_IMAGE_DIR)/hotspot/gtest/$$($1_VARIANT)/gtestLauncher \
 	        -jdk $(JDK_IMAGE_DIR) $$($1_GTEST_FILTER) \
 	        --gtest_output=xml:$$($1_TEST_RESULTS_DIR)/gtest.xml \
+	        --gtest_catch_exceptions=0 \
 	        $$($1_GTEST_REPEAT) $$(GTEST_OPTIONS) $$(GTEST_VM_OPTIONS) \
 	        $$(GTEST_JAVA_OPTIONS) $$($1_AOT_OPTIONS) \
 	        > >($(TEE) $$($1_TEST_RESULTS_DIR)/gtest.txt) \

make/autoconf/basics.m4

@@ -672,6 +672,16 @@ 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],
 [

make/autoconf/basics_windows.m4

@@ -112,7 +112,6 @@ AC_DEFUN([BASIC_FIXUP_PATH_CYGWIN],
   # unix format.
   path="[$]$1"
   new_path=`$CYGPATH -u "$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
@@ -402,8 +401,19 @@ AC_DEFUN_ONCE([BASIC_COMPILE_FIXPATH],
     BASIC_WINDOWS_REWRITE_AS_WINDOWS_MIXED_PATH([FIXPATH_BIN_W])
     $RM -rf $FIXPATH_BIN $FIXPATH_DIR
     $MKDIR -p $FIXPATH_DIR $CONFIGURESUPPORT_OUTPUTDIR/bin
+    # simple cross compilation solution for fixpath for aarch64
+    # Final solution should be backport of 8257679
+    if test "x$COMPILE_TYPE-$OPENJDK_TARGET_CPU" = xcross-aarch64; then
+      FIXPATH_CC=`$ECHO "$CC"|$SED 's|/arm64/cl|/x64/cl|I'`
+      FIXPATH_LIB=`$ECHO "$LIB"|$SED 's|arm64|x64|gI'`
+    else
+      FIXPATH_CC=$CC
+      FIXPATH_LIB=$LIB
+    fi
+    OLDLIB=$LIB
+    export LIB="$FIXPATH_LIB"
     cd $FIXPATH_DIR
-    $CC $FIXPATH_SRC_W -Fe$FIXPATH_BIN_W > $FIXPATH_DIR/fixpath1.log 2>&1
+    $FIXPATH_CC $FIXPATH_SRC_W -Fe$FIXPATH_BIN_W > $FIXPATH_DIR/fixpath1.log 2>&1
     cd $CURDIR
 
     if test ! -x $FIXPATH_BIN; then
@@ -414,9 +424,10 @@ AC_DEFUN_ONCE([BASIC_COMPILE_FIXPATH],
     AC_MSG_RESULT([yes])
     AC_MSG_CHECKING([if fixpath.exe works])
     cd $FIXPATH_DIR
-    $FIXPATH $CC $FIXPATH_SRC -Fe$FIXPATH_DIR/fixpath2.exe \
+    $FIXPATH $FIXPATH_CC $FIXPATH_SRC -Fe$FIXPATH_DIR/fixpath2.exe \
         > $FIXPATH_DIR/fixpath2.log 2>&1
     cd $CURDIR
+    export LIB="$OLDLIB"
     if test ! -x $FIXPATH_DIR/fixpath2.exe; then
       AC_MSG_RESULT([no])
       cat $FIXPATH_DIR/fixpath2.log

make/autoconf/buildjdk-spec.gmk.in

@@ -30,13 +30,13 @@
 # First include the real base spec.gmk file
 include @SPEC@
 
-CC := @BUILD_CC@
-CXX := @BUILD_CXX@
-LD := @BUILD_LD@
-LDCXX := @BUILD_LDCXX@
-AS := @BUILD_AS@
+CC := @FIXPATH@ @BUILD_CC@
+CXX := @FIXPATH@ @BUILD_CXX@
+LD := @FIXPATH@ @BUILD_LD@
+LDCXX := @FIXPATH@ @BUILD_LDCXX@
+AS := @FIXPATH@ @BUILD_AS@
 NM := @BUILD_NM@
-AR := @BUILD_AR@
+AR := @FIXPATH@ @BUILD_AR@
 OBJCOPY := @BUILD_OBJCOPY@
 STRIP := @BUILD_STRIP@
 SYSROOT_CFLAGS := @BUILD_SYSROOT_CFLAGS@

make/autoconf/flags-cflags.m4

@@ -705,7 +705,9 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
       $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -DcpuIntel -Di586 -D$FLAGS_CPU_LEGACY_LIB"
     fi
   elif 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
       $1_DEFINES_CPU_JDK="${$1_DEFINES_CPU_JDK} -D_X86_ -Dx86"
@@ -715,9 +717,21 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
   # CFLAGS PER CPU
   if test "x$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
 

make/autoconf/flags-ldflags.m4

@@ -118,7 +118,7 @@ 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
 
@@ -188,20 +188,19 @@ AC_DEFUN([FLAGS_SETUP_LDFLAGS_CPU_DEP],
     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}"
@@ -209,13 +208,13 @@ 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"
   $2LDFLAGS_JDKEXE="$LDFLAGS_JDK_COMMON $EXECUTABLE_LDFLAGS \
       ${$1_CPU_EXECUTABLE_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}"
 

make/autoconf/flags-other.m4

@@ -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
@@ -107,6 +107,16 @@ AC_DEFUN([FLAGS_SETUP_ASFLAGS],
 [
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     JVM_BASIC_ASFLAGS="-x assembler-with-cpp -mno-omit-leaf-frame-pointer -mstack-alignment=16"
+
+    # Fix linker warning.
+    # Code taken from make/autoconf/flags-cflags.m4 and adapted.
+    JVM_BASIC_ASFLAGS+="-DMAC_OS_X_VERSION_MIN_REQUIRED=$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/hotspot.m4

@@ -221,7 +221,7 @@ AC_DEFUN_ONCE([HOTSPOT_ENABLE_DISABLE_AOT],
 
   if test "x$ENABLE_AOT" = "xtrue"; then
     # Only enable AOT on X64 platforms.
-    if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
+    if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || test "x$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU" = "xlinux-aarch64" ; then
       if test -e "${TOPDIR}/src/jdk.aot"; then
         if test -e "${TOPDIR}/src/jdk.internal.vm.compiler"; then
           ENABLE_AOT="true"
@@ -240,7 +240,7 @@ AC_DEFUN_ONCE([HOTSPOT_ENABLE_DISABLE_AOT],
     else
       ENABLE_AOT="false"
       if test "x$enable_aot" = "xyes"; then
-        AC_MSG_ERROR([AOT is currently only supported on x86_64 and aarch64. Remove --enable-aot.])
+        AC_MSG_ERROR([AOT is currently only supported on x86_64 and linux-aarch64. Remove --enable-aot.])
       fi
     fi
   fi
@@ -364,6 +364,10 @@ AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_FEATURES],
   AC_MSG_CHECKING([if shenandoah can be built])
   if HOTSPOT_CHECK_JVM_FEATURE(shenandoahgc); then
     if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86" || test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
+      # Filter out Shenandoah from user requested features, as it's already in non-minimal set
+      if HOTSPOT_CHECK_JVM_VARIANT(minimal); then
+        BASIC_GET_NON_MATCHING_VALUES(JVM_FEATURES, $JVM_FEATURES, shenandoahgc)
+      fi
       AC_MSG_RESULT([yes])
     else
       DISABLED_JVM_FEATURES="$DISABLED_JVM_FEATURES shenandoahgc"
@@ -371,6 +375,7 @@ AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_FEATURES],
     fi
   else
       DISABLED_JVM_FEATURES="$DISABLED_JVM_FEATURES shenandoahgc"
+      AC_MSG_RESULT([no, not enabled by default])
   fi
 
   # Only enable ZGC on supported platforms
@@ -420,7 +425,9 @@ AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_FEATURES],
     # Only enable jvmci on x86_64, sparcv9 and aarch64
     if test "x$OPENJDK_TARGET_CPU" = "xx86_64" || \
        test "x$OPENJDK_TARGET_CPU" = "xsparcv9" || \
-       test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
+       test "x$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU" = "xwindows-aarch64" || \
+       test "x$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU" = "xlinux-aarch64"   || \
+       test "x$OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU" = "xmacosx-aarch64" ; then
       AC_MSG_RESULT([yes])
       JVM_FEATURES_jvmci="jvmci"
       INCLUDE_JVMCI="true"
@@ -451,10 +458,11 @@ AC_DEFUN_ONCE([HOTSPOT_SETUP_JVM_FEATURES],
       JVM_FEATURES_graal="graal"
       INCLUDE_GRAAL="true"
     else
-      # By default enable graal build on x64 or where AOT is available.
+      # By default enable graal build on x64/aarch64 or where AOT is available.
       # graal build requires jvmci.
       if test "x$JVM_FEATURES_jvmci" = "xjvmci" && \
           (test "x$OPENJDK_TARGET_CPU" = "xx86_64" || \
+           test "x$OPENJDK_TARGET_CPU" = "xaarch64" || \
            test "x$ENABLE_AOT" = "xtrue") ; then
         AC_MSG_RESULT([yes])
         JVM_FEATURES_graal="graal"

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
@@ -291,11 +291,7 @@ 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
@@ -305,12 +301,7 @@ 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])

make/autoconf/spec.gmk.in

@@ -382,7 +382,7 @@ GCOV_ENABLED=@GCOV_ENABLED@
 export ASAN_ENABLED:=@ASAN_ENABLED@
 export DEVKIT_LIB_DIR:=@DEVKIT_LIB_DIR@
 ifeq ($(ASAN_ENABLED), yes)
-  export ASAN_OPTIONS="handle_segv=0 detect_leaks=0"
+  export ASAN_OPTIONS=handle_segv=0 detect_leaks=0
   ifneq ($(DEVKIT_LIB_DIR),)
     export LD_LIBRARY_PATH:=$(LD_LIBRARY_PATH):$(DEVKIT_LIB_DIR)
   endif

make/autoconf/toolchain.m4

@@ -918,14 +918,18 @@ 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])
@@ -935,13 +939,37 @@ AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
           AC_MSG_RESULT([$BUILD_DEVKIT_ROOT])
         fi
 
-        BUILD_SYSROOT="$BUILD_DEVKIT_SYSROOT"
+        PATH="$BUILD_DEVKIT_EXTRA_PATH:$PATH"
 
-         # 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"
+        PATH="$BUILD_DEVKIT_TOOLCHAIN_PATH:$PATH"
+
+        BUILD_SYSROOT="$BUILD_DEVKIT_SYSROOT"
+
+        if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+          BUILD_VS_INCLUDE="$BUILD_DEVKIT_VS_INCLUDE"
+          BUILD_VS_LIB="$BUILD_DEVKIT_VS_LIB"
+
+          TOOLCHAIN_SETUP_VISUAL_STUDIO_SYSROOT_FLAGS([BUILD_])
+        fi
+      fi
+    else
+      if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
+        if test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
+          # try to guess compiler layout. Final solution should be
+          # backport of 8257679. Try primitive approach for now 
+          BUILD_CC=`$ECHO "$CC"|$SED 's|/arm64/cl|/x64/cl|I'`
+          BUILD_CXX=`$ECHO "$CXX"|$SED 's|/arm64/cl|/x64/cl|I'`
+          BUILD_AR=`$ECHO "$AR"|$SED 's|/arm64/lib|/x64/lib|I'`
+          BUILD_LD=`$ECHO "$LD"|$SED 's|/arm64/link|/x64/link|I'`
+          BUILD_SYSROOT_CFLAGS=`$ECHO "$SYSROOT_CFLAGS"|$SED 's|/arm64|/x64|gI'`
+          BUILD_SYSROOT_LDFLAGS=`$ECHO "$SYSROOT_LDFLAGS"|$SED 's|/arm64|/x64|gI'`
+        else
+          AC_MSG_ERROR([only windows-aarch64 cross compilation is supported so far])
+        fi
       fi
     fi
 
@@ -967,9 +995,37 @@ AC_DEFUN_ONCE([TOOLCHAIN_SETUP_BUILD_COMPILERS],
     BASIC_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
+      # 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([BUILD_LD], [link$EXE_SUFFIX],[link$EXE_SUFFIX],,, [$CYGWIN_LINK])
+      BASIC_FIXUP_EXECUTABLE(BUILD_LD)
+      # Verify that we indeed succeeded with this trick.
+      AC_MSG_CHECKING([if the found link.exe is actually the Visual Studio linker])
+
+      # Reset PATH since it can contain a mix of WSL/linux paths and Windows paths from VS,
+      # which, in combination with WSLENV, will make the WSL layer complain
+      old_path="$PATH"
+      PATH=
+
+      "$BUILD_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"
+
+      BUILD_LDCXX="$BUILD_LD"
+    else
+      # Just like for the target compiler, use the compiler as linker
+      BUILD_LD="$BUILD_CC"
+      BUILD_LDCXX="$BUILD_CXX"
+    fi
 
     PATH="$OLDPATH"
 
@@ -1025,6 +1081,10 @@ 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
 

make/autoconf/toolchain_windows.m4

@@ -25,7 +25,7 @@
 
 ################################################################################
 # The order of these defines the priority by which we try to find them.
-VALID_VS_VERSIONS="2017 2013 2015 2012 2010"
+VALID_VS_VERSIONS="2019 2017 2013 2015 2012 2010"
 
 VS_DESCRIPTION_2010="Microsoft Visual Studio 2010"
 VS_VERSION_INTERNAL_2010=100
@@ -80,7 +80,7 @@ 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_USE_UCRT_2017="false"
 VS_VS_INSTALLDIR_2017="Microsoft Visual Studio/2017"
 VS_EDITIONS_2017="BuildTools Community Professional Enterprise"
 VS_SDK_INSTALLDIR_2017=
@@ -88,6 +88,19 @@ VS_VS_PLATFORM_NAME_2017="v141"
 VS_SDK_PLATFORM_NAME_2017=
 VS_SUPPORTED_2017=true
 
+VS_DESCRIPTION_2019="Microsoft Visual Studio 2019"
+VS_VERSION_INTERNAL_2019=142
+VS_MSVCR_2019=vcruntime140.dll
+VS_MSVCP_2019=msvcp140.dll
+VS_ENVVAR_2019="VS160COMNTOOLS"
+VS_USE_UCRT_2019="false"
+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
+
 ################################################################################
 
 AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT],
@@ -111,11 +124,15 @@ AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT],
 
     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
+      if test "x$OPENJDK_TARGET_CPU" = xx86; then
         VCVARSFILES="vc/bin/vcvars32.bat vc/auxiliary/build/vcvars32.bat"
-      else
+      elif test "x$OPENJDK_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$OPENJDK_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 $VCVARSFILES; do
@@ -155,10 +172,12 @@ AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_WIN_SDK_ROOT],
       elif test -f "$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$OPENJDK_TARGET_CPU_BITS" = x32; then
+        if test "x$OPENJDK_TARGET_CPU" = xx86; then
           VS_ENV_ARGS="/x86"
-        else
+        elif test "x$OPENJDK_TARGET_CPU" = xx86_64; then
           VS_ENV_ARGS="/x64"
+        elif test "x$OPENJDK_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
@@ -455,41 +474,7 @@ AC_DEFUN([TOOLCHAIN_SETUP_VISUAL_STUDIO_ENV],
       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=$ipath
-          BASIC_WINDOWS_REWRITE_AS_UNIX_PATH([testpath])
-          if test -d "$testpath"; then
-            BASIC_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=$libpath
-          BASIC_WINDOWS_REWRITE_AS_UNIX_PATH([testpath])
-          if test -d "$testpath"; then
-            BASIC_FIXUP_PATH([libpath])
-            SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS -libpath:$libpath"
-          fi
-          IFS=";"
-        fi
-      done
-      IFS="$OLDIFS"
+      TOOLCHAIN_SETUP_VISUAL_STUDIO_SYSROOT_FLAGS
     fi
   else
     AC_MSG_RESULT([not found])
@@ -526,10 +511,15 @@ AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL],
         CORRECT_MSVCR_ARCH="PE32+ executable"
       fi
     else
-      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
+      if test "x$OPENJDK_TARGET_CPU" = xx86; then
         CORRECT_MSVCR_ARCH=386
-      else
+      elif test "x$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
     fi
     if $ECHO "$MSVC_DLL_FILETYPE" | $GREP "$CORRECT_MSVCR_ARCH" 2>&1 > /dev/null; then
@@ -549,24 +539,24 @@ 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$VCINSTALLDIR" != x; then
       CYGWIN_VC_INSTALL_DIR="$VCINSTALLDIR"
       BASIC_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
+        POSSIBLE_MSVC_DLL="$CYGWIN_VC_INSTALL_DIR/redist/$vs_target_cpu/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME"
       else
         # Probe: Using well-known location from VS 2017
-        if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
-          POSSIBLE_MSVC_DLL="`ls $CYGWIN_VC_INSTALL_DIR/Redist/MSVC/*/x64/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME`"
-        else
-          POSSIBLE_MSVC_DLL="`ls $CYGWIN_VC_INSTALL_DIR/Redist/MSVC/*/x86/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME`"
-        fi
+        POSSIBLE_MSVC_DLL="`ls $CYGWIN_VC_INSTALL_DIR/Redist/MSVC/*/$vs_target_cpu/Microsoft.VC${VS_VERSION_INTERNAL}.CRT/$DLL_NAME`"
       fi
       # In case any of the above finds more than one file, loop over them.
       for possible_msvc_dll in $POSSIBLE_MSVC_DLL; do
@@ -598,13 +588,8 @@ AC_DEFUN([TOOLCHAIN_SETUP_MSVC_DLL],
     if test "x$VS100COMNTOOLS" != x; then
       CYGWIN_VS_TOOLS_DIR="$VS100COMNTOOLS/.."
       BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(CYGWIN_VS_TOOLS_DIR)
-      if test "x$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/ | $HEAD --lines 1`
-      fi
+      POSSIBLE_MSVC_DLL=`$FIND "$CYGWIN_VS_TOOLS_DIR" -name $DLL_NAME \
+        | $GREP -i /$vs_target_cpu/ | $HEAD --lines 1`
       TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
           [search of VS100COMNTOOLS])
     fi
@@ -614,17 +599,17 @@ AC_DEFUN([TOOLCHAIN_SETUP_MSVC_DLL],
     # Probe: Search wildly in the VCINSTALLDIR. We've probably lost by now.
     # (This was the original behaviour; kept since it might turn something up)
     if test "x$CYGWIN_VC_INSTALL_DIR" != x; then
-      if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
+      if test "x$OPENJDK_TARGET_CPU" = xx86; 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`
+        | $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=`$FIND "$CYGWIN_VC_INSTALL_DIR" -name $DLL_NAME \
 	      | $HEAD --lines 1`
         fi
+      else
+        POSSIBLE_MSVC_DLL=`$FIND "$CYGWIN_VC_INSTALL_DIR" -name $DLL_NAME \
+          | $GREP $vs_target_cpu | $HEAD --lines 1`
       fi
 
       TOOLCHAIN_CHECK_POSSIBLE_MSVC_DLL([$DLL_NAME], [$POSSIBLE_MSVC_DLL],
@@ -708,8 +693,12 @@ AC_DEFUN([TOOLCHAIN_SETUP_VS_RUNTIME_DLLS],
       CYGWIN_WINDOWSSDKDIR="${WINDOWSSDKDIR}"
       BASIC_FIXUP_PATH([CYGWIN_WINDOWSSDKDIR])
       dll_subdir=$OPENJDK_TARGET_CPU
-      if test "x$dll_subdir" = "xx86_64"; then
+      if test "x$OPENJDK_TARGET_CPU" = "xaarch64"; then
+        dll_subdir="arm64"
+      elif test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
         dll_subdir="x64"
+      elif test "x$OPENJDK_TARGET_CPU" = "xx86"; then
+        dll_subdir="x86"
       fi
       UCRT_DLL_DIR="$CYGWIN_WINDOWSSDKDIR/Redist/ucrt/DLLs/$dll_subdir"
       if test -z "$(ls -d "$UCRT_DLL_DIR/"*.dll 2> /dev/null)"; then
@@ -732,3 +721,49 @@ AC_DEFUN([TOOLCHAIN_SETUP_VS_RUNTIME_DLLS],
   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 all variables. (e.g BUILD_)
+AC_DEFUN([TOOLCHAIN_SETUP_VISUAL_STUDIO_SYSROOT_FLAGS],
+[
+  # Convert $1VS_INCLUDE into $1SYSROOT_CFLAGS
+  OLDIFS="$IFS"
+  IFS=";"
+  for i in [$]$1VS_INCLUDE; do
+    ipath=$i
+    # Only process non-empty elements
+    if test "x$ipath" != x; then
+      IFS="$OLDIFS"
+      # Check that directory exists before calling fixup_path
+      testpath=$ipath
+      BASIC_WINDOWS_REWRITE_AS_UNIX_PATH([testpath])
+      if test -d "$testpath"; then
+        BASIC_FIXUP_PATH([ipath])
+        $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -I$ipath"
+      fi
+      IFS=";"
+    fi
+  done
+  # Convert $1VS_LIB into $1SYSROOT_LDFLAGS
+  for i in [$]$1VS_LIB; do
+    libpath=$i
+    # Only process non-empty elements
+    if test "x$libpath" != x; then
+      IFS="$OLDIFS"
+      # Check that directory exists before calling fixup_path
+      testpath=$libpath
+      BASIC_WINDOWS_REWRITE_AS_UNIX_PATH([testpath])
+      if test -d "$testpath"; then
+        BASIC_FIXUP_PATH([libpath])
+        $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -libpath:$libpath"
+      fi
+      IFS=";"
+    fi
+  done
+  IFS="$OLDIFS"
+
+  AC_SUBST($1SYSROOT_CFLAGS)
+  AC_SUBST($1SYSROOT_LDFLAGS)
+])

make/autoconf/version-numbers

@@ -28,12 +28,12 @@
 
 DEFAULT_VERSION_FEATURE=11
 DEFAULT_VERSION_INTERIM=0
-DEFAULT_VERSION_UPDATE=10
+DEFAULT_VERSION_UPDATE=12
 DEFAULT_VERSION_PATCH=0
 DEFAULT_VERSION_EXTRA1=0
 DEFAULT_VERSION_EXTRA2=0
 DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2021-01-19
+DEFAULT_VERSION_DATE=2021-07-20
 DEFAULT_VERSION_CLASSFILE_MAJOR=55  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
 DEFAULT_VERSION_CLASSFILE_MINOR=0
 DEFAULT_ACCEPTABLE_BOOT_VERSIONS="10 11"

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
@@ -239,15 +239,30 @@ 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''#'
   ifeq ($(TOOLCHAIN_TYPE), solstudio)
     define fix-deps-file
 	$(SED) -e 's|\./|$(WORKSPACE_ROOT)/|g' $1.tmp > $1
     endef
   else
     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
   endif
 else
@@ -823,13 +838,15 @@ 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)
+            $$($1_OPT_CFLAGS) -x c++-header -c $(C_FLAG_DEPS) \
+            $$(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)
 
@@ -991,6 +1008,13 @@ define SetupNativeCompilationBody
               $(CD) $$($1_OUTPUT_DIR) && \
                   $$($1_OBJCOPY) --add-gnu-debuglink=$$($1_DEBUGINFO_FILES) $$($1_TARGET)
 
+        else ifeq ($(OPENJDK_TARGET_OS), aix)
+          # 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 := $$($1_OUTPUT_DIR)/$$($1_NOSUFFIX).debuginfo 
+          $1_CREATE_DEBUGINFO_CMDS := $(CP) $$($1_TARGET) $$($1_DEBUGINFO_FILES)
+
         else ifeq ($(OPENJDK_TARGET_OS), macosx)
           $1_DEBUGINFO_FILES := \
               $$($1_OUTPUT_DIR)/$$($1_BASENAME).dSYM/Contents/Info.plist \

make/common/TestFilesCompilation.gmk

@@ -75,7 +75,7 @@ define SetupTestFilesCompilationBody
 
   # Locate all files with the matching prefix
   $1_FILE_LIST := \
-      $$(call FindFiles, $$($1_SOURCE_DIRS), $$($1_PREFIX)*.c)
+      $$(call FindFiles, $$($1_SOURCE_DIRS), $$($1_PREFIX)*.c $$($1_PREFIX)*.m)
 
   $1_EXCLUDE_PATTERN := $$(addprefix %/, $$($1_EXCLUDE))
   $1_FILTERED_FILE_LIST := $$(filter-out $$($1_EXCLUDE_PATTERN), $$($1_FILE_LIST))

make/conf/jib-profiles.js

@@ -1160,15 +1160,15 @@ 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);
     }

make/copy/Copy-java.base.gmk

@@ -43,38 +43,43 @@ ifneq ($(findstring $(OPENJDK_TARGET_OS), windows aix),)
 endif
 
 ################################################################################
-# Copy the microsoft runtime libraries on windows
+# Copy the microsoft runtime libraries on windows, but only if we are not
+# creating a buildjdk. If we are, the provided runtime librareis are made for
+# the target platform, not the build platform (and we should not need to bundle
+# anything with the minimalistic, locally-only buildjdk.)
 ifeq ($(OPENJDK_TARGET_OS), windows)
+  ifneq ($(CREATING_BUILDJDK), true)
 
-  # Chmod to avoid permission issues if bundles are unpacked on unix platforms.
-  define copy-and-chmod
+    # Chmod to avoid permission issues if bundles are unpacked on unix platforms.
+    define copy-and-chmod
 	$(install-file)
 	$(CHMOD) a+rx $@
-  endef
+    endef
 
-  # Use separate macro calls in case the source files are not in the same
-  # directory.
-  $(eval $(call SetupCopyFiles,COPY_MSVCR, \
+    # Use separate macro calls in case the source files are not in the same
+    # directory.
+    $(eval $(call SetupCopyFiles,COPY_MSVCR, \
       DEST := $(LIB_DST_DIR), \
       FILES := $(MSVCR_DLL), \
       MACRO := copy-and-chmod))
 
-  $(eval $(call SetupCopyFiles,COPY_MSVCP, \
+    $(eval $(call SetupCopyFiles,COPY_MSVCP, \
       DEST := $(LIB_DST_DIR), \
       FILES := $(MSVCP_DLL), \
       MACRO := copy-and-chmod))
 
-  TARGETS += $(COPY_MSVCR) $(COPY_MSVCP)
+    TARGETS += $(COPY_MSVCR) $(COPY_MSVCP)
 
-  ifneq ($(UCRT_DLL_DIR), )
-    $(eval $(call SetupCopyFiles, COPY_UCRT_DLLS, \
+    ifneq ($(UCRT_DLL_DIR), )
+      $(eval $(call SetupCopyFiles, COPY_UCRT_DLLS, \
         DEST := $(LIB_DST_DIR), \
         SRC := $(UCRT_DLL_DIR), \
         FILES := $(wildcard $(UCRT_DLL_DIR)/*.dll), \
         MACRO := copy-and-chmod, \
-    ))
+      ))
 
-    TARGETS += $(COPY_UCRT_DLLS)
+      TARGETS += $(COPY_UCRT_DLLS)
+    endif
   endif
 endif
 

make/data/cacerts/haricaeccrootca2015

@@ -0,0 +1,24 @@
+Owner: CN=Hellenic Academic and Research Institutions ECC RootCA 2015, O=Hellenic Academic and Research Institutions Cert. Authority, L=Athens, C=GR
+Issuer: CN=Hellenic Academic and Research Institutions ECC RootCA 2015, O=Hellenic Academic and Research Institutions Cert. Authority, L=Athens, C=GR
+Serial number: 0
+Valid from: Tue Jul 07 10:37:12 GMT 2015 until: Sat Jun 30 10:37:12 GMT 2040
+Signature algorithm name: SHA256withECDSA
+Subject Public Key Algorithm: 384-bit EC key
+Version: 3
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

make/data/cacerts/haricarootca2015

@@ -0,0 +1,42 @@
+Owner: CN=Hellenic Academic and Research Institutions RootCA 2015, O=Hellenic Academic and Research Institutions Cert. Authority, L=Athens, C=GR
+Issuer: CN=Hellenic Academic and Research Institutions RootCA 2015, O=Hellenic Academic and Research Institutions Cert. Authority, L=Athens, C=GR
+Serial number: 0
+Valid from: Tue Jul 07 10:11:21 GMT 2015 until: Sat Jun 30 10:11:21 GMT 2040
+Signature algorithm name: SHA256withRSA
+Subject Public Key Algorithm: 4096-bit RSA key
+Version: 3
+-----BEGIN CERTIFICATE-----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+ojXdFPQf/7J31Ycvqm59JCfnxssm5uX+Zwdj2EUN3TpZZTlYepKZcj2chF6IIbjV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+M4GwVhO+5lFc2JsKT0ucVlMC6U/2DWDqTUJV6HwbISHTGzrMd/K4kPFox/la/vot
+9L/J9UUbzjgQKjeKeaO04wlshYaT/4mWJ3iBj2fjRnRUjtkNaeJK9E10A/+yd+2V
+Z5fkscWrv2oj6NSU4kQoYsRL4vDY4ilrGnB+JGGTe08DMiUNRSQrlrRGar9KC/ea
+j8GsGsVn82800vpzY4zvFrCopEYq+OsS7HK07/grfoxSwIuEVPkvPuNVqNxmsdnh
+X9izjFk0WaSrT2y7HxjbdavYy5LNlDhhDgcGH0tGEPEVvo2FXDtKK4F5D7Rpn0lQ
+l033DlZdwJVqwjbDG2jJ9SrcR5q+ss7FJej6A7na+RZukYT1HCjI/CbM1xyQVqdf
+bzoEvM14iQuODy+jqk+iGxI9FghAD/FGTNeqewjBCvVtJ94Cj8rDtSvK6evIIVM4
+pcw72Hc3MKJP2W/R8kCtQXoXxdZKNYm3QdV8hn9VTYNKpXMgwDqvkPGaJI7ZjnHK
+e7iG2rKPmT4dEw0SEe7Uq/DpFXYC5ODfqiAeW2GFZECpkJcNrVPSWh2HagCXZWK0
+vm9qp/UsQu0yrbYhnr68
+-----END CERTIFICATE-----

make/data/cacerts/soneraclass2ca

@@ -1,26 +0,0 @@
-Owner: CN=Sonera Class2 CA, O=Sonera, C=FI
-Issuer: CN=Sonera Class2 CA, O=Sonera, C=FI
-Serial number: 1d
-Valid from: Fri Apr 06 07:29:40 GMT 2001 until: Tue Apr 06 07:29:40 GMT 2021
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 2048-bit RSA key
-Version: 3
------BEGIN CERTIFICATE-----
-MIIDIDCCAgigAwIBAgIBHTANBgkqhkiG9w0BAQUFADA5MQswCQYDVQQGEwJGSTEP
-MA0GA1UEChMGU29uZXJhMRkwFwYDVQQDExBTb25lcmEgQ2xhc3MyIENBMB4XDTAx
-MDQwNjA3Mjk0MFoXDTIxMDQwNjA3Mjk0MFowOTELMAkGA1UEBhMCRkkxDzANBgNV
-BAoTBlNvbmVyYTEZMBcGA1UEAxMQU29uZXJhIENsYXNzMiBDQTCCASIwDQYJKoZI
-hvcNAQEBBQADggEPADCCAQoCggEBAJAXSjWdyvANlsdE+hY3/Ei9vX+ALTU74W+o
-Z6m/AxxNjG8yR9VBaKQTBME1DJqEQ/xcHf+Js+gXGM2RX/uJ4+q/Tl18GybTdXnt
-5oTjV+WtKcT0OijnpXuENmmz/V52vaMtmdOQTiMofRhj8VQ7Jp12W5dCsv+u8E7s
-3TmVToMGf+dJQMjFAbJUWmYdPfz56TwKnoG4cPABi+QjVHzIrviQHgCWctRUz2Ej
-vOr7nQKV0ba5cTppCD8PtOFCx4j1P5iop7oc4HFx71hXgVB6XGt0Rg6DA5jDjqhu
-8nYybieDwnPz3BjotJPqdURrBGAgcVeHnfO+oJAjPYok4doh28MCAwEAAaMzMDEw
-DwYDVR0TAQH/BAUwAwEB/zARBgNVHQ4ECgQISqCqWITTXjwwCwYDVR0PBAQDAgEG
-MA0GCSqGSIb3DQEBBQUAA4IBAQBazof5FnIVV0sd2ZvnoiYw7JNn39Yt0jSv9zil
-zqsWuasvfDXLrNAPtEwr/IDva4yRXzZ299uzGxnq9LIR/WFxRL8oszodv7ND6J+/
-3DEIcbCdjdY0RzKQxmUk96BKfARzjzlvF4xytb1LyHr4e4PDKE6cCepnP7JnBBvD
-FNr450kkkdAdavphOe9r5yF1BgfYErQhIHBCcYHaPJo2vqZbDWpsmh+Re/n570K6
-Tk6ezAyNlNzZRZxe7EJQY670XcSxEtzKO6gunRRaBXW37Ndj4ro1tgQIkejanZz2
-ZrUYrAqmVCY0M9IbwdR/GjqOC6oybtv8TyWf2TLHllpwrN9M
------END CERTIFICATE-----

make/data/cacerts/thawtepremiumserverca

@@ -1,27 +0,0 @@
-Owner: EMAILADDRESS=premium-server@thawte.com, CN=Thawte Premium Server CA, OU=Certification Services Division, O=Thawte Consulting cc, L=Cape Town, ST=Western Cape, C=ZA
-Issuer: EMAILADDRESS=premium-server@thawte.com, CN=Thawte Premium Server CA, OU=Certification Services Division, O=Thawte Consulting cc, L=Cape Town, ST=Western Cape, C=ZA
-Serial number: 36122296c5e338a520a1d25f4cd70954
-Valid from: Thu Aug 01 00:00:00 GMT 1996 until: Fri Jan 01 23:59:59 GMT 2021
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 1024-bit RSA key
-Version: 3
------BEGIN CERTIFICATE-----
-MIIDNjCCAp+gAwIBAgIQNhIilsXjOKUgodJfTNcJVDANBgkqhkiG9w0BAQUFADCB
-zjELMAkGA1UEBhMCWkExFTATBgNVBAgTDFdlc3Rlcm4gQ2FwZTESMBAGA1UEBxMJ
-Q2FwZSBUb3duMR0wGwYDVQQKExRUaGF3dGUgQ29uc3VsdGluZyBjYzEoMCYGA1UE
-CxMfQ2VydGlmaWNhdGlvbiBTZXJ2aWNlcyBEaXZpc2lvbjEhMB8GA1UEAxMYVGhh
-d3RlIFByZW1pdW0gU2VydmVyIENBMSgwJgYJKoZIhvcNAQkBFhlwcmVtaXVtLXNl
-cnZlckB0aGF3dGUuY29tMB4XDTk2MDgwMTAwMDAwMFoXDTIxMDEwMTIzNTk1OVow
-gc4xCzAJBgNVBAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcT
-CUNhcGUgVG93bjEdMBsGA1UEChMUVGhhd3RlIENvbnN1bHRpbmcgY2MxKDAmBgNV
-BAsTH0NlcnRpZmljYXRpb24gU2VydmljZXMgRGl2aXNpb24xITAfBgNVBAMTGFRo
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-aovXwlue2oFBYo847kkEVdbQ7xwblRZH7xhINTpS9CtqBo87L+pW46+GjZ4X9560
-ZXUCTe/LCaIhUdib0GfQug2SBhRz1JPLlyoAnFxODLz6FVL88kRu2hFKbgifLy3j
-+ao6hnO2RlNYyIkFvYMRuHM/qgeN9EJN50CdHDcCAwEAAaMTMBEwDwYDVR0TAQH/
-BAUwAwEB/zANBgkqhkiG9w0BAQUFAAOBgQBlkKyID1bZ5jA01CbH0FDxkt5r1DmI
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-WuFg3GQjPEIuTQ==
------END CERTIFICATE-----

make/data/cacerts/verisignclass2g2ca

@@ -1,26 +0,0 @@
-Owner: OU=VeriSign Trust Network, OU="(c) 1998 VeriSign, Inc. - For authorized use only", OU=Class 2 Public Primary Certification Authority - G2, O="VeriSign, Inc.", C=US
-Issuer: OU=VeriSign Trust Network, OU="(c) 1998 VeriSign, Inc. - For authorized use only", OU=Class 2 Public Primary Certification Authority - G2, O="VeriSign, Inc.", C=US
-Serial number: b92f60cc889fa17a4609b85b706c8aaf
-Valid from: Mon May 18 00:00:00 GMT 1998 until: Tue Aug 01 23:59:59 GMT 2028
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 1024-bit RSA key
-Version: 1
------BEGIN CERTIFICATE-----
-MIIDAzCCAmwCEQC5L2DMiJ+hekYJuFtwbIqvMA0GCSqGSIb3DQEBBQUAMIHBMQsw
-CQYDVQQGEwJVUzEXMBUGA1UEChMOVmVyaVNpZ24sIEluYy4xPDA6BgNVBAsTM0Ns
-YXNzIDIgUHVibGljIFByaW1hcnkgQ2VydGlmaWNhdGlvbiBBdXRob3JpdHkgLSBH
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-nb3/7aHmZuovCfTK1+qlK5X2JGCGTUQug6XELaDTrnhpb3LabK4I8GOSN+a7xDAX
-rXfMSTWqz9iP0b63GJZHc2pUIjRkLbYWm1lbtFFZOrMLFPQS32eg9K0yZF6xRnIn
-jBJ7xUS0rg==
------END CERTIFICATE-----

make/data/cacerts/verisignclass3ca

@@ -1,21 +0,0 @@
-Owner: OU=Class 3 Public Primary Certification Authority, O="VeriSign, Inc.", C=US
-Issuer: OU=Class 3 Public Primary Certification Authority, O="VeriSign, Inc.", C=US
-Serial number: 3c9131cb1ff6d01b0e9ab8d044bf12be
-Valid from: Mon Jan 29 00:00:00 GMT 1996 until: Wed Aug 02 23:59:59 GMT 2028
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 1024-bit RSA key
-Version: 1
------BEGIN CERTIFICATE-----
-MIICPDCCAaUCEDyRMcsf9tAbDpq40ES/Er4wDQYJKoZIhvcNAQEFBQAwXzELMAkG
-A1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMTcwNQYDVQQLEy5DbGFz
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-MDEyOTAwMDAwMFoXDTI4MDgwMjIzNTk1OVowXzELMAkGA1UEBhMCVVMxFzAVBgNV
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-BarsAx94f56TuZoAqiN91qyFomNFx3InzPRMxnVx0jnvT0Lwdd8KkMaOIG+YD/is
-I19wKTakyYbnsZogy1Olhec9vn2a/iRFM9x2Fe0PonFkTGUugWhFpwIDAQABMA0G
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-2JhucwNhkcV8sEVAbkSdjbCxlnRhLQ2pRdKkkirWmnWXbj9T/UWZYB2oK0z5XqcJ
-2HUw19JlYD1n1khVdWk/kfVIC0dpImmClr7JyDiGSnoscxlIaU5rfGW/D/xwzoiQ
------END CERTIFICATE-----

make/data/cacerts/verisignclass3g2ca

@@ -1,26 +0,0 @@
-Owner: OU=VeriSign Trust Network, OU="(c) 1998 VeriSign, Inc. - For authorized use only", OU=Class 3 Public Primary Certification Authority - G2, O="VeriSign, Inc.", C=US
-Issuer: OU=VeriSign Trust Network, OU="(c) 1998 VeriSign, Inc. - For authorized use only", OU=Class 3 Public Primary Certification Authority - G2, O="VeriSign, Inc.", C=US
-Serial number: 7dd9fe07cfa81eb7107967fba78934c6
-Valid from: Mon May 18 00:00:00 GMT 1998 until: Tue Aug 01 23:59:59 GMT 2028
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 1024-bit RSA key
-Version: 1
------BEGIN CERTIFICATE-----
-MIIDAjCCAmsCEH3Z/gfPqB63EHln+6eJNMYwDQYJKoZIhvcNAQEFBQAwgcExCzAJ
-BgNVBAYTAlVTMRcwFQYDVQQKEw5WZXJpU2lnbiwgSW5jLjE8MDoGA1UECxMzQ2xh
-c3MgMyBQdWJsaWMgUHJpbWFyeSBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eSAtIEcy
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-pO0M8RcPO/mn+SXXwc+EY/J8Y8+iR/LGWzOOZEAEaMGAuWQcRXfH2G71lSk8UOg0
-13gfqLptQ5GVj0VXXn7F+8qkBOvqlzdUMG+7AUcyM83cV5tkaWH4mx0ciU9cZwID
-AQABMA0GCSqGSIb3DQEBBQUAA4GBAFFNzb5cy5gZnBWyATl4Lk0PZ3BwmcYQWpSk
-U01UbSuvDV1Ai2TT1+7eVmGSX6bEHRBhNtMsJzzoKQm5EWR0zLVznxxIqbxhAe7i
-F6YM40AIOw7n60RzKprxaZLvcRTDOaxxp5EJb+RxBrO6WVcmeQD2+A2iMzAo1KpY
-oJ2daZH9
------END CERTIFICATE-----

make/data/cacerts/verisigntsaca

@@ -1,24 +0,0 @@
-Owner: CN=Thawte Timestamping CA, OU=Thawte Certification, O=Thawte, L=Durbanville, ST=Western Cape, C=ZA
-Issuer: CN=Thawte Timestamping CA, OU=Thawte Certification, O=Thawte, L=Durbanville, ST=Western Cape, C=ZA
-Serial number: 67c8e1e8e3be1cbdfc913b8ea6238749
-Valid from: Wed Jan 01 00:00:00 GMT 1997 until: Fri Jan 01 23:59:59 GMT 2021
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 1024-bit RSA key
-Version: 3
------BEGIN CERTIFICATE-----
-MIICsDCCAhmgAwIBAgIQZ8jh6OO+HL38kTuOpiOHSTANBgkqhkiG9w0BAQUFADCB
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------END CERTIFICATE-----

make/data/docs-resources/index.html

@@ -1,10 +1,13 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
 <!--
- Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ Copyright (c) 2018, 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.
+ 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
@@ -20,21 +23,11 @@
  or visit www.oracle.com if you need additional information or have any
  questions.
 -->
-
-<html>
+<html lang="en">
+<head>
+<meta http-equiv="refresh" content="0;url=api/index.html">
+<title>Java API Documentation redirect</title>
+</head>
 <body>
-
-Verify that high resolution system icons are used JCheckBoxMenuItem 
-on HiDPI displays.
-
-If the display does not support HiDPI mode press PASS.
-
-1. Run the test on HiDPI Display.
-2. Press the Menu in the applet
-3. Check that the icon on the JCheckBoxMenuItem is smooth
-If so, press PASS, else press FAIL.
-
-<applet  code="bug8031573.class" width=250 height=250></applet>
-
 </body>
 </html>

make/data/lsrdata/language-subtag-registry.txt

@@ -1,4 +1,4 @@
-File-Date: 2019-09-16
+File-Date: 2020-09-29
 %%
 Type: language
 Subtag: aa
@@ -1530,7 +1530,7 @@ Added: 2005-10-16
 %%
 Type: language
 Subtag: adb
-Description: Adabe
+Description: Atauran
 Added: 2009-07-29
 %%
 Type: language
@@ -2707,6 +2707,7 @@ Type: language
 Subtag: aoh
 Description: Arma
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: aoi
@@ -3770,6 +3771,7 @@ Type: language
 Subtag: ayy
 Description: Tayabas Ayta
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: ayz
@@ -4085,6 +4087,7 @@ Type: language
 Subtag: bbz
 Description: Babalia Creole Arabic
 Added: 2009-07-29
+Deprecated: 2020-03-28
 Macrolanguage: ar
 %%
 Type: language
@@ -5755,6 +5758,7 @@ Type: language
 Subtag: bpb
 Description: Barbacoas
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: bpd
@@ -6011,7 +6015,7 @@ Added: 2009-07-29
 %%
 Type: language
 Subtag: brf
-Description: Bera
+Description: Bira
 Added: 2009-07-29
 %%
 Type: language
@@ -7374,6 +7378,7 @@ Type: language
 Subtag: cca
 Description: Cauca
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: ccc
@@ -7480,6 +7485,7 @@ Type: language
 Subtag: cdg
 Description: Chamari
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: cdh
@@ -7875,6 +7881,11 @@ Description: Cibak
 Added: 2009-07-29
 %%
 Type: language
+Subtag: ckm
+Description: Chakavian
+Added: 2020-03-28
+%%
+Type: language
 Subtag: ckn
 Description: Kaang Chin
 Added: 2013-09-10
@@ -8121,6 +8132,13 @@ Description: Con
 Added: 2009-07-29
 %%
 Type: language
+Subtag: cnp
+Description: Northern Ping Chinese
+Description: Northern Pinghua
+Added: 2020-03-28
+Macrolanguage: zh
+%%
+Type: language
 Subtag: cnr
 Description: Montenegrin
 Added: 2018-01-23
@@ -8564,6 +8582,13 @@ Description: Sochiapan Chinantec
 Added: 2009-07-29
 %%
 Type: language
+Subtag: csp
+Description: Southern Ping Chinese
+Description: Southern Pinghua
+Added: 2020-03-28
+Macrolanguage: zh
+%%
+Type: language
 Subtag: csq
 Description: Croatia Sign Language
 Added: 2009-07-29
@@ -9318,6 +9343,7 @@ Macrolanguage: doi
 Type: language
 Subtag: dgr
 Description: Dogrib
+Description: Tłı̨chǫ
 Added: 2005-10-16
 %%
 Type: language
@@ -9334,6 +9360,7 @@ Type: language
 Subtag: dgu
 Description: Degaru
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: dgw
@@ -9720,6 +9747,11 @@ Description: Dugwor
 Added: 2009-07-29
 %%
 Type: language
+Subtag: dmf
+Description: Medefaidrin
+Added: 2020-03-28
+%%
+Type: language
 Subtag: dmg
 Description: Upper Kinabatangan
 Added: 2009-07-29
@@ -10041,6 +10073,8 @@ Type: language
 Subtag: drr
 Description: Dororo
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Preferred-Value: kzk
 %%
 Type: language
 Subtag: drs
@@ -10330,6 +10364,11 @@ Description: Diri
 Added: 2009-07-29
 %%
 Type: language
+Subtag: dwk
+Description: Dawik Kui
+Added: 2020-03-28
+%%
+Type: language
 Subtag: dwl
 Description: Walo Kumbe Dogon
 Added: 2009-07-29
@@ -10455,6 +10494,11 @@ Description: Karenggapa
 Added: 2013-09-10
 %%
 Type: language
+Subtag: ebc
+Description: Beginci
+Added: 2020-03-28
+%%
+Type: language
 Subtag: ebg
 Description: Ebughu
 Added: 2009-07-29
@@ -10576,6 +10620,7 @@ Type: language
 Subtag: ekc
 Description: Eastern Karnic
 Added: 2013-09-10
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: eke
@@ -11215,6 +11260,11 @@ Description: Fyer
 Added: 2009-07-29
 %%
 Type: language
+Subtag: fif
+Description: Faifi
+Added: 2020-06-08
+%%
+Type: language
 Subtag: fil
 Description: Filipino
 Description: Pilipino
@@ -11881,6 +11931,7 @@ Added: 2009-07-29
 Type: language
 Subtag: gdh
 Description: Gadjerawang
+Description: Gajirrabeng
 Added: 2009-07-29
 %%
 Type: language
@@ -11970,6 +12021,11 @@ Description: Gade
 Added: 2009-07-29
 %%
 Type: language
+Subtag: gef
+Description: Gerai
+Added: 2020-03-28
+%%
+Type: language
 Subtag: geg
 Description: Gengle
 Added: 2009-07-29
@@ -12381,6 +12437,8 @@ Type: language
 Subtag: gli
 Description: Guliguli
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Preferred-Value: kzk
 %%
 Type: language
 Subtag: glj
@@ -12476,6 +12534,12 @@ Added: 2009-07-29
 Scope: collection
 %%
 Type: language
+Subtag: gmr
+Description: Mirning
+Description: Mirniny
+Added: 2020-03-28
+%%
+Type: language
 Subtag: gmu
 Description: Gumalu
 Added: 2009-07-29
@@ -13155,6 +13219,7 @@ Added: 2009-07-29
 %%
 Type: language
 Subtag: gwc
+Description: Gawri
 Description: Kalami
 Added: 2009-07-29
 %%
@@ -13859,6 +13924,11 @@ Description: Chhattisgarhi
 Added: 2009-07-29
 %%
 Type: language
+Subtag: hng
+Description: Hungu
+Added: 2020-03-28
+%%
+Type: language
 Subtag: hnh
 Description: ǁAni
 Added: 2009-07-29
@@ -14140,6 +14210,7 @@ Added: 2009-07-29
 Type: language
 Subtag: huc
 Description: ǂHua
+Description: ǂʼAmkhoe
 Added: 2009-07-29
 %%
 Type: language
@@ -15910,6 +15981,7 @@ Added: 2009-07-29
 Type: language
 Subtag: kaa
 Description: Kara-Kalpak
+Description: Karakalpak
 Added: 2005-10-16
 %%
 Type: language
@@ -17067,8 +17139,9 @@ Added: 2009-07-29
 %%
 Type: language
 Subtag: kjf
-Description: Khalaj
+Description: Khalaj [Indo-Iranian]
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: kjg
@@ -17248,7 +17321,7 @@ Added: 2009-07-29
 %%
 Type: language
 Subtag: kkq
-Description: Kaiku
+Description: Kaeku
 Added: 2009-07-29
 %%
 Type: language
@@ -17344,7 +17417,7 @@ Added: 2009-07-29
 %%
 Type: language
 Subtag: klj
-Description: Turkic Khalaj
+Description: Khalaj
 Added: 2009-07-29
 %%
 Type: language
@@ -18497,6 +18570,7 @@ Added: 2009-07-29
 Type: language
 Subtag: kui
 Description: Kuikúro-Kalapálo
+Description: Kalapalo
 Added: 2009-07-29
 %%
 Type: language
@@ -18908,6 +18982,8 @@ Type: language
 Subtag: kxl
 Description: Nepali Kurux
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Preferred-Value: kru
 %%
 Type: language
 Subtag: kxm
@@ -18953,6 +19029,8 @@ Type: language
 Subtag: kxu
 Description: Kui (India)
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Comments: see dwk, uki
 %%
 Type: language
 Subtag: kxv
@@ -20337,6 +20415,7 @@ Type: language
 Subtag: lmz
 Description: Lumbee
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: lna
@@ -22788,6 +22867,7 @@ Added: 2009-07-29
 %%
 Type: language
 Subtag: moe
+Description: Innu
 Description: Montagnais
 Added: 2009-07-29
 %%
@@ -26199,6 +26279,11 @@ Description: Sangtam Naga
 Added: 2009-07-29
 %%
 Type: language
+Subtag: nsb
+Description: Lower Nossob
+Added: 2020-03-28
+%%
+Type: language
 Subtag: nsc
 Description: Nshi
 Added: 2009-07-29
@@ -26667,6 +26752,8 @@ Type: language
 Subtag: nxu
 Description: Narau
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Preferred-Value: bpp
 %%
 Type: language
 Subtag: nxx
@@ -28166,7 +28253,7 @@ Added: 2009-07-29
 %%
 Type: language
 Subtag: pfe
-Description: Peere
+Description: Pere
 Added: 2009-07-29
 %%
 Type: language
@@ -28572,6 +28659,7 @@ Type: language
 Subtag: plp
 Description: Palpa
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: plq
@@ -31132,6 +31220,8 @@ Type: language
 Subtag: sdm
 Description: Semandang
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Comments: see ebc, gef, sdq
 %%
 Type: language
 Subtag: sdn
@@ -31150,6 +31240,11 @@ Description: Sherdukpen
 Added: 2009-07-29
 %%
 Type: language
+Subtag: sdq
+Description: Semandang
+Added: 2020-03-28
+%%
+Type: language
 Subtag: sdr
 Description: Oraon Sadri
 Added: 2009-07-29
@@ -33502,6 +33597,7 @@ Type: language
 Subtag: tbb
 Description: Tapeba
 Added: 2009-07-29
+Deprecated: 2020-03-28
 %%
 Type: language
 Subtag: tbc
@@ -34219,6 +34315,8 @@ Type: language
 Subtag: thw
 Description: Thudam
 Added: 2009-07-29
+Deprecated: 2020-06-08
+Preferred-Value: ola
 %%
 Type: language
 Subtag: thx
@@ -36240,6 +36338,11 @@ Description: Ukhwejo
 Added: 2009-07-29
 %%
 Type: language
+Subtag: uki
+Description: Kui (India)
+Added: 2020-03-28
+%%
+Type: language
 Subtag: ukk
 Description: Muak Sa-aak
 Added: 2017-02-23
@@ -36271,6 +36374,11 @@ Description: Ukue
 Added: 2009-07-29
 %%
 Type: language
+Subtag: ukv
+Description: Kuku
+Added: 2020-03-28
+%%
+Type: language
 Subtag: ukw
 Description: Ukwuani-Aboh-Ndoni
 Added: 2009-07-29
@@ -37760,6 +37868,11 @@ Description: Kunbarlang
 Added: 2009-07-29
 %%
 Type: language
+Subtag: wlh
+Description: Welaun
+Added: 2020-03-28
+%%
+Type: language
 Subtag: wli
 Description: Waioli
 Added: 2009-07-29
@@ -39232,6 +39345,11 @@ Description: Nganakarti
 Added: 2013-09-10
 %%
 Type: language
+Subtag: xnm
+Description: Ngumbarl
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xnn
 Description: Northern Kankanay
 Added: 2009-07-29
@@ -39334,22 +39452,45 @@ Description: Pirriya
 Added: 2013-09-10
 %%
 Type: language
+Subtag: xpb
+Description: Northeastern Tasmanian
+Description: Pyemmairrener
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xpc
 Description: Pecheneg
 Added: 2009-07-29
 %%
 Type: language
+Subtag: xpd
+Description: Oyster Bay Tasmanian
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xpe
 Description: Liberia Kpelle
 Added: 2009-07-29
 Macrolanguage: kpe
 %%
 Type: language
+Subtag: xpf
+Description: Southeast Tasmanian
+Description: Nuenonne
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xpg
 Description: Phrygian
 Added: 2009-07-29
 %%
 Type: language
+Subtag: xph
+Description: North Midlands Tasmanian
+Description: Tyerrenoterpanner
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xpi
 Description: Pictish
 Added: 2009-07-29
@@ -39365,6 +39506,11 @@ Description: Kulina Pano
 Added: 2009-07-29
 %%
 Type: language
+Subtag: xpl
+Description: Port Sorell Tasmanian
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xpm
 Description: Pumpokol
 Added: 2009-07-29
@@ -39410,11 +39556,34 @@ Description: Punic
 Added: 2009-07-29
 %%
 Type: language
+Subtag: xpv
+Description: Northern Tasmanian
+Description: Tommeginne
+Added: 2020-03-28
+%%
+Type: language
+Subtag: xpw
+Description: Northwestern Tasmanian
+Description: Peerapper
+Added: 2020-03-28
+%%
+Type: language
+Subtag: xpx
+Description: Southwestern Tasmanian
+Description: Toogee
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xpy
 Description: Puyo
 Added: 2009-07-29
 %%
 Type: language
+Subtag: xpz
+Description: Bruny Island Tasmanian
+Added: 2020-03-28
+%%
+Type: language
 Subtag: xqa
 Description: Karakhanid
 Added: 2009-07-29
@@ -39468,6 +39637,8 @@ Type: language
 Subtag: xrq
 Description: Karranga
 Added: 2013-09-10
+Deprecated: 2020-03-28
+Preferred-Value: dmw
 %%
 Type: language
 Subtag: xrr
@@ -39700,6 +39871,8 @@ Type: language
 Subtag: xtz
 Description: Tasmanian
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Comments: see xpb, xpd, xpf, xph, xpl, xpv, xpw, xpx, xpz
 %%
 Type: language
 Subtag: xua
@@ -39729,6 +39902,7 @@ Added: 2009-07-29
 Type: language
 Subtag: xul
 Description: Ngunawal
+Description: Nunukul
 Added: 2013-09-10
 %%
 Type: language
@@ -41321,6 +41495,11 @@ Description: Zari
 Added: 2009-07-29
 %%
 Type: language
+Subtag: zba
+Description: Balaibalan
+Added: 2020-03-28
+%%
+Type: language
 Subtag: zbc
 Description: Central Berawan
 Added: 2009-07-29
@@ -41486,6 +41665,8 @@ Type: language
 Subtag: zir
 Description: Ziriya
 Added: 2009-07-29
+Deprecated: 2020-03-28
+Preferred-Value: scv
 %%
 Type: language
 Subtag: ziw
@@ -42463,6 +42644,7 @@ Type: extlang
 Subtag: bbz
 Description: Babalia Creole Arabic
 Added: 2009-07-29
+Deprecated: 2020-03-28
 Preferred-Value: bbz
 Prefix: ar
 Macrolanguage: ar
@@ -42580,6 +42762,15 @@ Prefix: zh
 Macrolanguage: zh
 %%
 Type: extlang
+Subtag: cnp
+Description: Northern Ping Chinese
+Description: Northern Pinghua
+Added: 2020-03-28
+Preferred-Value: cnp
+Prefix: zh
+Macrolanguage: zh
+%%
+Type: extlang
 Subtag: coa
 Description: Cocos Islands Malay
 Added: 2009-07-29
@@ -42647,6 +42838,15 @@ Preferred-Value: csn
 Prefix: sgn
 %%
 Type: extlang
+Subtag: csp
+Description: Southern Ping Chinese
+Description: Southern Pinghua
+Added: 2020-03-28
+Preferred-Value: csp
+Prefix: zh
+Macrolanguage: zh
+%%
+Type: extlang
 Subtag: csq
 Description: Croatia Sign Language
 Added: 2009-07-29
@@ -44928,6 +45128,11 @@ Description: Tirhuta
 Added: 2011-08-16
 %%
 Type: script
+Subtag: Toto
+Description: Toto
+Added: 2020-05-12
+%%
+Type: script
 Subtag: Ugar
 Description: Ugaritic
 Added: 2005-10-16
@@ -46630,6 +46835,12 @@ Comments: Denotes conventions established by the Academia Brasileira de
   Letras in 1943 and generally used in Brazil until 2009
 %%
 Type: variant
+Subtag: akuapem
+Description: Akuapem Twi
+Added: 2017-06-05
+Prefix: tw
+%%
+Type: variant
 Subtag: alalc97
 Description: ALA-LC Romanization, 1997 edition
 Added: 2009-12-09
@@ -46648,12 +46859,6 @@ Comments: Aluku dialect of the "Busi Nenge Tongo" English-based Creole
   continuum in Eastern Suriname and Western French Guiana
 %%
 Type: variant
-Subtag: akuapem
-Description: Akuapem Twi
-Added: 2017-06-05
-Prefix: tw
-%%
-Type: variant
 Subtag: ao1990
 Description: Portuguese Language Orthographic Agreement of 1990 (Acordo
   Ortográfico da Língua Portuguesa de 1990)
@@ -47129,6 +47334,16 @@ Comments: Pamaka dialect of the "Busi Nenge Tongo" English-based
   Creole continuum in Eastern Suriname and Western French Guiana
 %%
 Type: variant
+Subtag: peano
+Description: Latino Sine Flexione
+Description: Interlingua de API
+Description: Interlingua de Peano
+Prefix: la
+Comments: Peano’s Interlingua, created in 1903 by Giuseppe Peano as an
+  international auxiliary language
+Added: 2020-03-12
+%%
+Type: variant
 Subtag: petr1708
 Description: Petrine orthography
 Added: 2010-10-10
@@ -47266,6 +47481,23 @@ Comments: The subtag represents Branislau Taraskievic's Belarusian
   Miensk 2005).
 %%
 Type: variant
+Subtag: tongyong
+Description: Tongyong Pinyin romanization
+Added: 2020-06-08
+Prefix: zh-Latn
+Comments: Former official transcription standard for Mandarin Chinese in
+  Taiwan.
+%%
+Type: variant
+Subtag: tunumiit
+Description: Tunumiisiut
+Description: East Greenlandic
+Description: Østgrønlandsk
+Added: 2020-07-16
+Prefix: kl
+Comments: Also known as Tunumiit oraasiat
+%%
+Type: variant
 Subtag: uccor
 Description: Unified Cornish orthography of Revived Cornish
 Added: 2008-10-14
@@ -47318,6 +47550,14 @@ Comments: Vallader is one of the five traditional written standards or
   "idioms" of the Romansh language.
 %%
 Type: variant
+Subtag: vecdruka
+Description: Latvian orthography used before 1920s ("vecā druka")
+Added: 2020-09-26
+Prefix: lv
+Comments: The subtag represents the old orthography of the Latvian
+  language used during c. 1600s–1920s.
+%%
+Type: variant
 Subtag: vivaraup
 Description: Vivaro-Alpine
 Added: 2018-04-22

make/data/tzdata/VERSION

@@ -21,4 +21,4 @@
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
-tzdata2020d
+tzdata2021a

make/data/tzdata/africa

@@ -409,36 +409,87 @@ Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
 
 # Ghana
 
-# From Paul Eggert (2018-01-30):
-# Whitman says DST was observed from 1931 to "the present";
-# Shanks & Pottenger say 1936 to 1942 with 20 minutes of DST,
-# with transitions on 09-01 and 12-31 at 00:00.
-# Page 33 of Parish GCB, Colonial Reports - Annual. No. 1066. Gold
-# Coast. Report for 1919. (March 1921), OCLC 784024077
-# http://libsysdigi.library.illinois.edu/ilharvest/africana/books2011-05/5530214/5530214_1919/5530214_1919_opt.pdf
-# lists the Determination of the Time Ordinance, 1919, No. 18,
-# "to advance the time observed locally by the space of twenty minutes
-# during the last four months of each year; the object in view being
-# to extend during those months the period of daylight-time available
-# for evening recreation after office hours."
-# Vanessa Ogle, The Global Transformation of Time, 1870-1950 (2015), p 33,
-# writes "In 1919, the Gold Coast (Ghana as of 1957) made Greenwich
-# time its legal time and simultaneously legalized a summer time of
-# UTC - 00:20 minutes from March to October."; a footnote lists
-# the ordinance as being dated 1919-11-24.
-# The Crown Colonist, Volume 12 (1942), p 176, says "the Government
-# intend advancing Gold Coast time half an hour ahead of G.M.T.
-# The actual date of the alteration has not yet been announced."
-# These sources are incomplete and contradictory.  Possibly what is
-# now Ghana observed different DST regimes in different years.  For
-# lack of better info, use Shanks except treat the minus sign as a
-# typo, and assume DST started in 1920 not 1936.
+# From P Chan (2020-11-20):
+# Interpretation Amendment Ordinance, 1915 (No.24 of 1915) [1915-11-02]
+# Ordinances of the Gold Coast, Ashanti, Northern Territories 1915, p 69-71
+# https://books.google.com/books?id=ErA-AQAAIAAJ&pg=PA70
+# This Ordinance added "'Time' shall mean Greenwich Mean Time" to the
+# Interpretation Ordinance, 1876.
+#
+# Determination of the Time Ordinance, 1919 (No. 18 of 1919) [1919-11-24]
+# Ordinances of the Gold Coast, Ashanti, Northern Territories 1919, p 75-76
+# https://books.google.com/books?id=MbA-AQAAIAAJ&pg=PA75
+# This Ordinance removed the previous definition of time and introduced DST.
+#
+# Time Determination Ordinance (Cap. 214)
+# The Laws of the Gold Coast (including Togoland Under British Mandate)
+# Vol. II (1937), p 2328
+# https://books.google.com/books?id=Z7M-AQAAIAAJ&pg=PA2328
+# Revised edition of the 1919 Ordinance.
+#
+# Time Determination (Amendment) Ordinance, 1940 (No. 9 of 1940) [1940-04-06]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1940, p 22
+# https://books.google.com/books?id=1ao-AQAAIAAJ&pg=PA22
+# This Ordinance changed the forward transition from September to May.
+#
+# Defence (Time Determination Ordinance Amendment) Regulations, 1942
+# (Regulations No. 6 of 1942) [1942-01-31, commenced on 1942-02-08]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1942, p 48
+# https://books.google.com/books?id=Das-AQAAIAAJ&pg=PA48
+# These regulations advanced the [standard] time by thirty minutes.
+#
+# Defence (Time Determination Ordinance Amendment (No.2)) Regulations,
+# 1942 (Regulations No. 28 of 1942) [1942-04-25]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1942, p 87
+# https://books.google.com/books?id=Das-AQAAIAAJ&pg=PA87
+# These regulations abolished DST and changed the time to GMT+0:30.
+#
+# Defence (Revocation) (No.4) Regulations, 1945 (Regulations No. 45 of
+# 1945) [1945-10-24, commenced on 1946-01-06]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1945, p 256
+# https://books.google.com/books?id=9as-AQAAIAAJ&pg=PA256
+# These regulations revoked the previous two sets of Regulations.
+#
+# Time Determination (Amendment) Ordinance, 1945 (No. 18 of 1945) [1946-01-06]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1945, p 69
+# https://books.google.com/books?id=9as-AQAAIAAJ&pg=PA69
+# This Ordinance abolished DST.
+#
+# Time Determination (Amendment) Ordinance, 1950 (No. 26 of 1950) [1950-07-22]
+# Annual Volume of the Laws of the Gold Coast:
+# Containing All Legislation Enacted During Year 1950, p 35
+# https://books.google.com/books?id=e60-AQAAIAAJ&pg=PA35
+# This Ordinance restored DST but with thirty minutes offset.
+#
+# Time Determination Ordinance (Cap. 264)
+# The Laws of the Gold Coast, Vol. V (1954), p 380
+# https://books.google.com/books?id=Mqc-AQAAIAAJ&pg=PA380
+# Revised edition of the Time Determination Ordinance.
+#
+# Time Determination (Amendment) Ordinance, 1956 (No. 21 of 1956) [1956-08-29]
+# Annual Volume of the Ordinances of the Gold Coast Enacted During the
+# Year 1956, p 83
+# https://books.google.com/books?id=VLE-AQAAIAAJ&pg=PA83
+# This Ordinance abolished DST.
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Ghana	1920	1942	-	Sep	 1	0:00	0:20	-
-Rule	Ghana	1920	1942	-	Dec	31	0:00	0	-
+Rule	Ghana	1919	only	-	Nov	24	0:00	0:20	+0020
+Rule	Ghana	1920	1942	-	Jan	 1	2:00	0	GMT
+Rule	Ghana	1920	1939	-	Sep	 1	2:00	0:20	+0020
+Rule	Ghana	1940	1941	-	May	 1	2:00	0:20	+0020
+Rule	Ghana	1950	1955	-	Sep	 1	2:00	0:30	+0030
+Rule	Ghana	1951	1956	-	Jan	 1	2:00	0	GMT
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Africa/Accra	-0:00:52 -	LMT	1918
-			 0:00	Ghana	GMT/+0020
+Zone	Africa/Accra	-0:00:52 -	LMT	1915 Nov  2
+			 0:00	Ghana	%s	1942 Feb  8
+			 0:30	-	+0030	1946 Jan  6
+			 0:00	Ghana	%s
 
 # Guinea
 # See Africa/Abidjan.
@@ -456,11 +507,54 @@ Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1  1:00u
 			 0:00	-	GMT
 
 # Kenya
+
+# From P Chan (2020-10-24):
+#
+# The standard time of GMT+2:30 was adopted in the East Africa Protectorate....
+# [The Official Gazette, 1908-05-01, p 274]
+# https://books.google.com/books?id=e-cAC-sjPSEC&pg=PA274
+#
+# At midnight on 30 June 1928 the clocks throughout Kenya was put forward
+# half an hour by the Alteration of Time Ordinance, 1928.
+# https://gazettes.africa/archive/ke/1928/ke-government-gazette-dated-1928-05-11-no-28.pdf
+# [Ordinance No. 11 of 1928, The Offical Gazette, 1928-06-26, p 813]
+# https://books.google.com/books?id=2S0S6os32ZUC&pg=PA813
+#
+# The 1928 ordinance was repealed by the Alteration of Time (repeal) Ordinance,
+# 1929 and the time was restored to GMT+2:30 at midnight on 4 January 1930.
+# [Ordinance No. 97 of 1929, The Official Gazette, 1929-12-31, p 2701]
+# https://books.google.com/books?id=_g18jIZQlwwC&pg=PA2701
+#
+# The Alteration of Time Ordinance, 1936 changed the time to GMT+2:45
+# and repealed the previous ordinance at midnight on 31 December 1936.
+# [The Official Gazette, 1936-07-21, p 705]
+# https://books.google.com/books?id=K7j41z0aC5wC&pg=PA705
+#
+# The Defence (Amendment of Laws No. 120) Regulations changed the time
+# to GMT+3 at midnight on 31 July 1942.
+# [Kenya Official Gazette Supplement No. 32, 1942-07-21, p 331]
+# https://books.google.com/books?hl=zh-TW&id=c_E-AQAAIAAJ&pg=PA331
+# The provision of the 1936 ordinance was not repealed and was later
+# incorporated in the Interpretation and General Clauses Ordinance in 1948.
+# Although it was overridden by the 1942 regulations.
+# [The Laws of Kenya in force on 1948-09-21, Title I, Chapter 1, 31]
+# https://dds.crl.edu/item/217517 (p.101)
+# In 1950 the Interpretation and General Clauses Ordinance was amended to adopt
+# GMT+3 permanently as the 1942 regulations were due to expire on 10 December.
+# https://books.google.com/books?id=jvR8mUDAwR0C&pg=PA787
+# [Ordinance No. 44 of 1950, Kenya Ordinances 1950, Vol. XXIX, p 294]
+# https://books.google.com/books?id=-_dQAQAAMAAJ&pg=PA294
+
+# From Paul Eggert (2020-10-24):
+# The 1908-05-01 announcement does not give an effective date,
+# so just say "1908 May".
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Africa/Nairobi	2:27:16	-	LMT	1928 Jul
-			3:00	-	EAT	1930
-			2:30	-	+0230	1940
-			2:45	-	+0245	1960
+Zone	Africa/Nairobi	2:27:16	-	LMT	1908 May
+			2:30	-	+0230	1928 Jun 30 24:00
+			3:00	-	EAT	1930 Jan  4 24:00
+			2:30	-	+0230	1936 Dec 31 24:00
+			2:45	-	+0245	1942 Jul 31 24:00
 			3:00	-	EAT
 Link Africa/Nairobi Africa/Addis_Ababa	 # Ethiopia
 Link Africa/Nairobi Africa/Asmara	 # Eritrea
@@ -1247,8 +1341,69 @@ Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
 # See Africa/Lagos.
 
 # Nigeria
+
+# From P Chan (2020-12-03):
+# GMT was adopted as the standard time of Lagos on 1905-07-01.
+# Lagos Weekly Record, 1905-06-24, p 3
+# http://ddsnext.crl.edu/titles/31558#?c=0&m=668&s=0&cv=2&r=0&xywh=1446%2C5221%2C1931%2C1235
+# says "It is officially notified that on and after the 1st of July 1905
+# Greenwich Mean Solar Time will be adopted thought the Colony and
+# Protectorate, and that it will be necessary to put all clocks 13 minutes and
+# 35 seconds back, recording local mean time."
+#
+# It seemed that Lagos returned to LMT on 1908-07-01.
+# [The Lagos Standard], 1908-07-01, p 5
+# http://ddsnext.crl.edu/titles/31556#?c=0&m=78&s=0&cv=4&r=0&xywh=-92%2C3590%2C3944%2C2523
+# says "Scarcely have the people become accustomed to this new time, when
+# another official notice has now appeared announcing that from and after the
+# 1st July next, return will be made to local mean time."
+#
+# From P Chan (2020-11-27):
+# On 1914-01-01, standard time of GMT+0:30 was adopted for the unified Nigeria.
+# Colonial Reports - Annual. No. 878. Nigeria. Report for 1914. (April 1916),
+# p 27
+# https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064634/3064634_1914/3064634_1914_opt.pdf#page=27
+# "On January 1st [1914], a universal standard time for Nigeria was adopted,
+# viz., half an hour fast on Greenwich mean time, corresponding to the meridian
+# 7 [degrees] 30' E. long."
+# Lloyd's Register of Shipping (1915) says "Hitherto the time observed in Lagos
+# was the local mean time. On 1st January, 1914, standard time for the whole of
+# Nigeria was introduced ... Lagos time has been advanced about 16 minutes
+# accordingly."
+#
+# In 1919, standard time was changed to GMT+1.
+# Interpretation Ordinance (Cap 2)
+# The Laws of Nigeria, Containing the Ordinances of Nigeria, in Force on the
+# 1st Day of January, 1923, Vol.I [p 16]
+# https://books.google.com/books?id=BOMrAQAAMAAJ&pg=PA16
+# "The expression 'Standard time' means standard time as used in Nigeria:
+# namely, 60 minutes in advance of Greenwich mean time.  (As amended by 18 of
+# 1919, s. 2.)"
+# From Tim Parenti (2020-12-10):
+# The Lagos Weekly Record, 1919-09-20, p 3 details discussion on the first
+# reading of this Bill by the Legislative Council of the Colony of Nigeria on
+# Thursday 1919-08-28:
+# http://ddsnext.crl.edu/titles/31558?terms&item_id=303484#?m=1118&c=1&s=0&cv=2&r=0&xywh=1261%2C3408%2C2994%2C1915
+# "The proposal is that the Globe should be divided into twelve zones East and
+# West of Greenwich, of one hour each, Nigeria falling into the zone with a
+# standard of one hour fast on Greenwich Mean Time.  Nigeria standard time is
+# now 30 minutes in advance of Greenwich Mean Time ... according to the new
+# proposal, standard time will be advanced another 30 minutes".  It was further
+# proposed that the firing of the time guns likewise be adjusted by 30 minutes
+# to compensate.
+# From Tim Parenti (2020-12-10), per P Chan (2020-12-11):
+# The text of Ordinance 18 of 1919, published in Nigeria Gazette, Vol 6, No 52,
+# shows that the change was assented to the following day and took effect "on
+# the 1st day of September, 1919."
+# Nigeria Gazette and Supplements 1919 Jan-Dec, Reference: 73266B-40,
+# img 245-246
+# https://microform.digital/boa/collections/77/volumes/539/nigeria-lagos-1887-1919
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Africa/Lagos	0:13:36 -	LMT	1919 Sep
+Zone	Africa/Lagos	0:13:35 -	LMT	1905 Jul  1
+			0:00	-	GMT	1908 Jul  1
+			0:13:35	-	LMT	1914 Jan  1
+			0:30	-	+0030	1919 Sep  1
 			1:00	-	WAT
 Link Africa/Lagos Africa/Bangui	     # Central African Republic
 Link Africa/Lagos Africa/Brazzaville # Rep. of the Congo
@@ -1321,8 +1476,21 @@ Zone	Africa/Sao_Tome	 0:26:56 -	LMT	1884
 # See Africa/Abidjan.
 
 # Seychelles
+
+# From P Chan (2020-11-27):
+# Standard Time was adopted on 1907-01-01.
+#
+# Standard Time Ordinance (Chapter 237)
+# The Laws of Seychelles in Force on the 31st December, 1971, Vol. 6, p 571
+# https://books.google.com/books?id=efE-AQAAIAAJ&pg=PA571
+#
+# From Tim Parenti (2020-12-05):
+# A footnote on https://books.google.com/books?id=DYdDAQAAMAAJ&pg=PA1689
+# confirms that Ordinance No. 9 of 1906 "was brought into force on the 1st
+# January, 1907."
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Indian/Mahe	3:41:48 -	LMT	1906 Jun # Victoria
+Zone	Indian/Mahe	3:41:48 -	LMT	1907 Jan  1 # Victoria
 			4:00	-	+04
 # From Paul Eggert (2001-05-30):
 # Aldabra, Farquhar, and Desroches, originally dependencies of the
@@ -1382,11 +1550,17 @@ Zone	Africa/Khartoum	2:10:08 -	LMT	1931
 			3:00	-	EAT	2017 Nov  1
 			2:00	-	CAT
 
+# From Steffen Thorsen (2021-01-18):
+# "South Sudan will change its time zone by setting the clock back 1
+# hour on February 1, 2021...."
+# from https://eyeradio.org/south-sudan-adopts-new-time-zone-makuei/
+
 # South Sudan
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Juba	2:06:28 -	LMT	1931
 			2:00	Sudan	CA%sT	2000 Jan 15 12:00
-			3:00	-	EAT
+			3:00	-	EAT	2021 Feb  1 00:00
+			2:00	-	CAT
 
 # Tanzania
 # See Africa/Nairobi.

make/data/tzdata/asia

@@ -1746,40 +1746,180 @@ Zone	Asia/Baghdad	2:57:40	-	LMT	1890
 # high on my favorite-country list (and not only because my wife's
 # family is from India).
 
-# From Shanks & Pottenger:
+# From P Chan (2020-10-27), with corrections:
+#
+# 1940-1946 Supplement No. 2 to the Palestine Gazette
+# # issue page  Order No.   dated      start        end         note
+# 1 1010  729  67 of 1940 1940-05-22 1940-05-31* 1940-09-30* revoked by #2
+# 2 1013  758  73 of 1940 1940-05-31 1940-05-31  1940-09-30
+# 3 1055 1574 196 of 1940 1940-11-06 1940-11-16  1940-12-31
+# 4 1066 1811 208 of 1940 1940-12-17 1940-12-31  1941-12-31
+# 5 1156 1967 116 of 1941 1941-12-16 1941-12-31  1942-12-31* amended by #6
+# 6 1228 1608  86 of 1942 1942-10-14 1941-12-31  1942-10-31
+# 7 1256  279  21 of 1943 1943-03-18 1943-03-31  1943-10-31
+# 8 1323  249  19 of 1944 1944-03-13 1944-03-31  1944-10-31
+# 9 1402  328  20 of 1945 1945-04-05 1945-04-15  1945-10-31
+#10 1487  596  14 of 1946 1946-04-04 1946-04-15  1946-10-31
+#
+# 1948 Iton Rishmi (Official Gazette of the Provisional Government)
+# #    issue    page   dated      start       end
+#11 2             7 1948-05-20 1948-05-22 1948-10-31*
+#	^This moved timezone to +04, replaced by #12 from 1948-08-31 24:00 GMT.
+#12 17 (Annex B) 84 1948-08-22 1948-08-31 1948-10-31
+#
+# 1949-2000 Kovetz HaTakanot (Collection of Regulations)
+# # issue page  dated      start       end            note
+#13    6  133 1949-03-23 1949-04-30  1949-10-31
+#14   80  755 1950-03-17 1950-04-15  1950-09-14
+#15  164  782 1951-03-22 1951-03-31  1951-09-29* amended by #16
+#16  206 1940 1951-09-23 ----------  1951-10-22* amended by #17
+#17  212   78 1951-10-19 ----------  1951-11-10
+#18  254  652 1952-03-03 1952-04-19  1952-09-27* amended by #19
+#19  300   11 1952-09-15 ----------  1952-10-18
+#20  348  817 1953-03-03 1953-04-11  1953-09-12
+#21  420  385 1954-02-17 1954-06-12  1954-09-11
+#22  497  548 1955-01-14 1955-06-11  1955-09-10
+#23  591  608 1956-03-12 1956-06-02  1956-09-29
+#24  680  957 1957-02-08 1957-04-27  1957-09-21
+#25 3192 1418 1974-06-28 1974-07-06  1974-10-12
+#26 3322 1389 1975-04-03 1975-04-19  1975-08-30
+#27 4146 2089 1980-07-15 1980-08-02  1980-09-13
+#28 4604 1081 1984-02-22 1984-05-05* 1984-08-25* revoked by #29
+#29 4619 1312 1984-04-06 1984-05-05  1984-08-25
+#30 4744  475 1984-12-23 1985-04-13  1985-09-14* amended by #31
+#31 4851 1848 1985-08-18 ----------  1985-08-31
+#32 4932  899 1986-04-22 1986-05-17  1986-09-06
+#33 5013  580 1987-02-15 1987-04-18* 1987-08-22* revoked by #34
+#34 5021  744 1987-03-30 1987-04-14  1987-09-12
+#35 5096  659 1988-02-14 1988-04-09  1988-09-03
+#36 5167  514 1989-02-03 1989-04-29  1989-09-02
+#37 5248  375 1990-01-23 1990-03-24  1990-08-25
+#38 5335  612 1991-02-10 1991-03-09* 1991-08-31	 amended by #39
+#			 1992-03-28  1992-09-05
+#39 5339  709 1991-03-04 1991-03-23  ----------
+#40 5506  503 1993-02-18 1993-04-02  1993-09-05
+#			 1994-04-01  1994-08-28
+#			 1995-03-31  1995-09-03
+#41 5731  438 1996-01-01 1996-03-14  1996-09-15
+#			 1997-03-13* 1997-09-18* overridden by 1997 Temp Prov
+#			 1998-03-19* 1998-09-17* revoked by #42
+#42 5853 1243 1997-09-18 1998-03-19  1998-09-05
+#43 5937   77 1998-10-18 1999-04-02  1999-09-03
+#			 2000-04-14* 2000-09-15* revoked by #44
+#			 2001-04-13* 2001-09-14* revoked by #44
+#44 6024   39 2000-03-14 2000-04-14  2000-10-22* overridden by 2000 Temp Prov
+#			 2001-04-06* 2001-10-10* overridden by 2000 Temp Prov
+#			 2002-03-29* 2002-10-29* overridden by 2000 Temp Prov
+#
+# These are laws enacted by the Knesset since the Minister could only alter the
+# transition dates at least six months in advanced under the 1992 Law.
+#				dated		start		end
+# 1997 Temporary Provisions	1997-03-06	1997-03-20	1997-09-13
+# 2000 Temporary Provisions	2000-07-28	----------	2000-10-06
+#						2001-04-09	2001-09-24
+#						2002-03-29	2002-10-07
+#						2003-03-28	2003-10-03
+#						2004-04-07	2004-09-22
+# Note:
+# Transition times in 1940-1957 (#1-#24) were midnight GMT,
+# in 1974-1998 (#25-#42 and the 1997 Temporary Provisions) were midnight,
+# in 1999-April 2000 (#43,#44) were 02:00,
+# in the 2000 Temporary Provisions were 01:00.
+#
+# -----------------------------------------------------------------------------
+# Links:
+# 1 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=687
+# 2 https://findit.library.yale.edu/images_layout/view?parentoid=15537490&increment=716
+# 3 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=721
+# 4 https://findit.library.yale.edu/images_layout/view?parentoid=15537491&increment=958
+# 5 https://findit.library.yale.edu/images_layout/view?parentoid=15537502&increment=558
+# 6 https://findit.library.yale.edu/images_layout/view?parentoid=15537511&increment=105
+# 7 https://findit.library.yale.edu/images_layout/view?parentoid=15537516&increment=278
+# 8 https://findit.library.yale.edu/images_layout/view?parentoid=15537522&increment=248
+# 9 https://findit.library.yale.edu/images_layout/view?parentoid=15537530&increment=329
+#10 https://findit.library.yale.edu/images_layout/view?parentoid=15537537&increment=601
+#11 https://www.nevo.co.il/law_word/law12/er-002.pdf#page=3
+#12 https://www.nevo.co.il/law_word/law12/er-017-t2.pdf#page=4
+#13 https://www.nevo.co.il/law_word/law06/tak-0006.pdf#page=3
+#14 https://www.nevo.co.il/law_word/law06/tak-0080.pdf#page=7
+#15 https://www.nevo.co.il/law_word/law06/tak-0164.pdf#page=10
+#16 https://www.nevo.co.il/law_word/law06/tak-0206.pdf#page=4
+#17 https://www.nevo.co.il/law_word/law06/tak-0212.pdf#page=2
+#18 https://www.nevo.co.il/law_word/law06/tak-0254.pdf#page=4
+#19 https://www.nevo.co.il/law_word/law06/tak-0300.pdf#page=5
+#20 https://www.nevo.co.il/law_word/law06/tak-0348.pdf#page=3
+#21 https://www.nevo.co.il/law_word/law06/tak-0420.pdf#page=5
+#22 https://www.nevo.co.il/law_word/law06/tak-0497.pdf#page=10
+#23 https://www.nevo.co.il/law_word/law06/tak-0591.pdf#page=6
+#24 https://www.nevo.co.il/law_word/law06/tak-0680.pdf#page=3
+#25 https://www.nevo.co.il/law_word/law06/tak-3192.pdf#page=2
+#26 https://www.nevo.co.il/law_word/law06/tak-3322.pdf#page=5
+#27 https://www.nevo.co.il/law_word/law06/tak-4146.pdf#page=2
+#28 https://www.nevo.co.il/law_word/law06/tak-4604.pdf#page=7
+#29 https://www.nevo.co.il/law_word/law06/tak-4619.pdf#page=2
+#30 https://www.nevo.co.il/law_word/law06/tak-4744.pdf#page=11
+#31 https://www.nevo.co.il/law_word/law06/tak-4851.pdf#page=2
+#32 https://www.nevo.co.il/law_word/law06/tak-4932.pdf#page=19
+#33 https://www.nevo.co.il/law_word/law06/tak-5013.pdf#page=8
+#34 https://www.nevo.co.il/law_word/law06/tak-5021.pdf#page=8
+#35 https://www.nevo.co.il/law_word/law06/tak-5096.pdf#page=3
+#36 https://www.nevo.co.il/law_word/law06/tak-5167.pdf#page=2
+#37 https://www.nevo.co.il/law_word/law06/tak-5248.pdf#page=7
+#38 https://www.nevo.co.il/law_word/law06/tak-5335.pdf#page=6
+#39 https://www.nevo.co.il/law_word/law06/tak-5339.pdf#page=7
+#40 https://www.nevo.co.il/law_word/law06/tak-5506.pdf#page=19
+#41 https://www.nevo.co.il/law_word/law06/tak-5731.pdf#page=2
+#42 https://www.nevo.co.il/law_word/law06/tak-5853.pdf#page=3
+#43 https://www.nevo.co.il/law_word/law06/tak-5937.pdf#page=9
+#44 https://www.nevo.co.il/law_word/law06/tak-6024.pdf#page=4
+#
+# Time Determination (Temporary Provisions) Law, 1997
+# https://www.nevo.co.il/law_html/law19/p201_003.htm
+#
+# Time Determination (Temporary Provisions) Law, 2000
+# https://www.nevo.co.il/law_html/law19/p201_004.htm
+#
+# Time Determination Law, 1992 and amendments
+# https://www.nevo.co.il/law_html/law01/p201_002.htm
+# https://main.knesset.gov.il/Activity/Legislation/Laws/Pages/LawPrimary.aspx?lawitemid=2001174
+
+# From Paul Eggert (2020-10-27):
+# Several of the midnight transitions mentioned above are ambiguous;
+# are they 00:00, 00:00s, 24:00, or 24:00s?  When resolving these ambiguities,
+# try to minimize changes from previous tzdb versions, for lack of better info.
+# Commentary from previous versions is included below, to help explain this.
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Zion	1940	only	-	Jun	 1	0:00	1:00	D
-Rule	Zion	1942	1944	-	Nov	 1	0:00	0	S
-Rule	Zion	1943	only	-	Apr	 1	2:00	1:00	D
-Rule	Zion	1944	only	-	Apr	 1	0:00	1:00	D
-Rule	Zion	1945	only	-	Apr	16	0:00	1:00	D
-Rule	Zion	1945	only	-	Nov	 1	2:00	0	S
-Rule	Zion	1946	only	-	Apr	16	2:00	1:00	D
-Rule	Zion	1946	only	-	Nov	 1	0:00	0	S
-Rule	Zion	1948	only	-	May	23	0:00	2:00	DD
-Rule	Zion	1948	only	-	Sep	 1	0:00	1:00	D
-Rule	Zion	1948	1949	-	Nov	 1	2:00	0	S
-Rule	Zion	1949	only	-	May	 1	0:00	1:00	D
-Rule	Zion	1950	only	-	Apr	16	0:00	1:00	D
-Rule	Zion	1950	only	-	Sep	15	3:00	0	S
-Rule	Zion	1951	only	-	Apr	 1	0:00	1:00	D
-Rule	Zion	1951	only	-	Nov	11	3:00	0	S
-Rule	Zion	1952	only	-	Apr	20	2:00	1:00	D
-Rule	Zion	1952	only	-	Oct	19	3:00	0	S
-Rule	Zion	1953	only	-	Apr	12	2:00	1:00	D
-Rule	Zion	1953	only	-	Sep	13	3:00	0	S
-Rule	Zion	1954	only	-	Jun	13	0:00	1:00	D
-Rule	Zion	1954	only	-	Sep	12	0:00	0	S
-Rule	Zion	1955	only	-	Jun	11	2:00	1:00	D
-Rule	Zion	1955	only	-	Sep	11	0:00	0	S
-Rule	Zion	1956	only	-	Jun	 3	0:00	1:00	D
-Rule	Zion	1956	only	-	Sep	30	3:00	0	S
-Rule	Zion	1957	only	-	Apr	29	2:00	1:00	D
-Rule	Zion	1957	only	-	Sep	22	0:00	0	S
-Rule	Zion	1974	only	-	Jul	 7	0:00	1:00	D
-Rule	Zion	1974	only	-	Oct	13	0:00	0	S
-Rule	Zion	1975	only	-	Apr	20	0:00	1:00	D
-Rule	Zion	1975	only	-	Aug	31	0:00	0	S
+Rule	Zion	1940	only	-	May	31	24:00u	1:00	D
+Rule	Zion	1940	only	-	Sep	30	24:00u	0	S
+Rule	Zion	1940	only	-	Nov	16	24:00u	1:00	D
+Rule	Zion	1942	1946	-	Oct	31	24:00u	0	S
+Rule	Zion	1943	1944	-	Mar	31	24:00u	1:00	D
+Rule	Zion	1945	1946	-	Apr	15	24:00u	1:00	D
+Rule	Zion	1948	only	-	May	22	24:00u	2:00	DD
+Rule	Zion	1948	only	-	Aug	31	24:00u	1:00	D
+Rule	Zion	1948	1949	-	Oct	31	24:00u	0	S
+Rule	Zion	1949	only	-	Apr	30	24:00u	1:00	D
+Rule	Zion	1950	only	-	Apr	15	24:00u	1:00	D
+Rule	Zion	1950	only	-	Sep	14	24:00u	0	S
+Rule	Zion	1951	only	-	Mar	31	24:00u	1:00	D
+Rule	Zion	1951	only	-	Nov	10	24:00u	0	S
+Rule	Zion	1952	only	-	Apr	19	24:00u	1:00	D
+Rule	Zion	1952	only	-	Oct	18	24:00u	0	S
+Rule	Zion	1953	only	-	Apr	11	24:00u	1:00	D
+Rule	Zion	1953	only	-	Sep	12	24:00u	0	S
+Rule	Zion	1954	only	-	Jun	12	24:00u	1:00	D
+Rule	Zion	1954	only	-	Sep	11	24:00u	0	S
+Rule	Zion	1955	only	-	Jun	11	24:00u	1:00	D
+Rule	Zion	1955	only	-	Sep	10	24:00u	0	S
+Rule	Zion	1956	only	-	Jun	 2	24:00u	1:00	D
+Rule	Zion	1956	only	-	Sep	29	24:00u	0	S
+Rule	Zion	1957	only	-	Apr	27	24:00u	1:00	D
+Rule	Zion	1957	only	-	Sep	21	24:00u	0	S
+Rule	Zion	1974	only	-	Jul	 6	24:00	1:00	D
+Rule	Zion	1974	only	-	Oct	12	24:00	0	S
+Rule	Zion	1975	only	-	Apr	19	24:00	1:00	D
+Rule	Zion	1975	only	-	Aug	30	24:00	0	S
 
 # From Alois Treindl (2019-03-06):
 # http://www.moin.gov.il/Documents/שעון%20קיץ/clock-50-years-7-2014.pdf
@@ -1792,25 +1932,24 @@ Rule	Zion	1975	only	-	Aug	31	0:00	0	S
 # From Paul Eggert (2019-03-06):
 # Also see this thread about the moin.gov.il URL:
 # https://mm.icann.org/pipermail/tz/2018-November/027194.html
-Rule	Zion	1980	only	-	Aug	 2	0:00	1:00	D
-Rule	Zion	1980	only	-	Sep	13	1:00	0	S
-Rule	Zion	1984	only	-	May	 5	0:00	1:00	D
-Rule	Zion	1984	only	-	Aug	25	1:00	0	S
+Rule	Zion	1980	only	-	Aug	 2	24:00s	1:00	D
+Rule	Zion	1980	only	-	Sep	13	24:00s	0	S
+Rule	Zion	1984	only	-	May	 5	24:00s	1:00	D
+Rule	Zion	1984	only	-	Aug	25	24:00s	0	S
 
-# From Shanks & Pottenger:
-Rule	Zion	1985	only	-	Apr	14	0:00	1:00	D
-Rule	Zion	1985	only	-	Sep	15	0:00	0	S
-Rule	Zion	1986	only	-	May	18	0:00	1:00	D
-Rule	Zion	1986	only	-	Sep	 7	0:00	0	S
-Rule	Zion	1987	only	-	Apr	15	0:00	1:00	D
-Rule	Zion	1987	only	-	Sep	13	0:00	0	S
+Rule	Zion	1985	only	-	Apr	13	24:00	1:00	D
+Rule	Zion	1985	only	-	Aug	31	24:00	0	S
+Rule	Zion	1986	only	-	May	17	24:00	1:00	D
+Rule	Zion	1986	only	-	Sep	 6	24:00	0	S
+Rule	Zion	1987	only	-	Apr	14	24:00	1:00	D
+Rule	Zion	1987	only	-	Sep	12	24:00	0	S
 
 # From Avigdor Finkelstein (2014-03-05):
 # I check the Parliament (Knesset) records and there it's stated that the
 # [1988] transition should take place on Saturday night, when the Sabbath
 # ends and changes to Sunday.
-Rule	Zion	1988	only	-	Apr	10	0:00	1:00	D
-Rule	Zion	1988	only	-	Sep	 4	0:00	0	S
+Rule	Zion	1988	only	-	Apr	 9	24:00	1:00	D
+Rule	Zion	1988	only	-	Sep	 3	24:00	0	S
 
 # From Ephraim Silverberg
 # (1997-03-04, 1998-03-16, 1998-12-28, 2000-01-17, 2000-07-25, 2004-12-22,
@@ -1840,14 +1979,14 @@ Rule	Zion	1988	only	-	Sep	 4	0:00	0	S
 # (the eve of the 7th of Tishrei in the lunar Hebrew calendar).
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Zion	1989	only	-	Apr	30	0:00	1:00	D
-Rule	Zion	1989	only	-	Sep	 3	0:00	0	S
-Rule	Zion	1990	only	-	Mar	25	0:00	1:00	D
-Rule	Zion	1990	only	-	Aug	26	0:00	0	S
-Rule	Zion	1991	only	-	Mar	24	0:00	1:00	D
-Rule	Zion	1991	only	-	Sep	 1	0:00	0	S
-Rule	Zion	1992	only	-	Mar	29	0:00	1:00	D
-Rule	Zion	1992	only	-	Sep	 6	0:00	0	S
+Rule	Zion	1989	only	-	Apr	29	24:00	1:00	D
+Rule	Zion	1989	only	-	Sep	 2	24:00	0	S
+Rule	Zion	1990	only	-	Mar	24	24:00	1:00	D
+Rule	Zion	1990	only	-	Aug	25	24:00	0	S
+Rule	Zion	1991	only	-	Mar	23	24:00	1:00	D
+Rule	Zion	1991	only	-	Aug	31	24:00	0	S
+Rule	Zion	1992	only	-	Mar	28	24:00	1:00	D
+Rule	Zion	1992	only	-	Sep	 5	24:00	0	S
 Rule	Zion	1993	only	-	Apr	 2	0:00	1:00	D
 Rule	Zion	1993	only	-	Sep	 5	0:00	0	S
 
@@ -1876,10 +2015,10 @@ Rule	Zion	1995	only	-	Sep	 3	0:00	0	S
 #       where YYYY is the relevant year.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Zion	1996	only	-	Mar	15	0:00	1:00	D
-Rule	Zion	1996	only	-	Sep	16	0:00	0	S
-Rule	Zion	1997	only	-	Mar	21	0:00	1:00	D
-Rule	Zion	1997	only	-	Sep	14	0:00	0	S
+Rule	Zion	1996	only	-	Mar	14	24:00	1:00	D
+Rule	Zion	1996	only	-	Sep	15	24:00	0	S
+Rule	Zion	1997	only	-	Mar	20	24:00	1:00	D
+Rule	Zion	1997	only	-	Sep	13	24:00	0	S
 Rule	Zion	1998	only	-	Mar	20	0:00	1:00	D
 Rule	Zion	1998	only	-	Sep	 6	0:00	0	S
 Rule	Zion	1999	only	-	Apr	 2	2:00	1:00	D
@@ -1931,14 +2070,15 @@ Rule	Zion	2010	only	-	Sep	12	2:00	0	S
 Rule	Zion	2011	only	-	Oct	 2	2:00	0	S
 Rule	Zion	2012	only	-	Sep	23	2:00	0	S
 
-# From Ephraim Silverberg (2013-06-27):
-# On June 23, 2013, the Israeli government approved changes to the
-# Time Decree Law.  The next day, the changes passed the First Reading
-# in the Knesset.  The law is expected to pass the Second and Third
-# (final) Readings by the beginning of September 2013.
-#
-# As of 2013, DST starts at 02:00 on the Friday before the last Sunday
-# in March.  DST ends at 02:00 on the last Sunday of October.
+# From Ephraim Silverberg (2020-10-26):
+# The current time law (2013) from the State of Israel can be viewed
+# (in Hebrew) at:
+# ftp://ftp.cs.huji.ac.il/pub/tz/israel/announcements/2013+law.pdf
+# It translates to:
+# Every year, in the period from the Friday before the last Sunday in
+# the month of March at 02:00 a.m. until the last Sunday of the month
+# of October at 02:00 a.m., Israel Time will be advanced an additional
+# hour such that it will be UTC+3.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	2013	max	-	Mar	Fri>=23	2:00	1:00	D

make/data/tzdata/australasia

@@ -37,16 +37,13 @@
 # Please see the notes below for the controversy about "EST" versus "AEST" etc.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Aus	1917	only	-	Jan	 1	0:01	1:00	D
-Rule	Aus	1917	only	-	Mar	25	2:00	0	S
-Rule	Aus	1942	only	-	Jan	 1	2:00	1:00	D
-Rule	Aus	1942	only	-	Mar	29	2:00	0	S
-Rule	Aus	1942	only	-	Sep	27	2:00	1:00	D
-Rule	Aus	1943	1944	-	Mar	lastSun	2:00	0	S
-Rule	Aus	1943	only	-	Oct	 3	2:00	1:00	D
-# Go with Whitman and the Australian National Standards Commission, which
-# says W Australia didn't use DST in 1943/1944.  Ignore Whitman's claim that
-# 1944/1945 was just like 1943/1944.
+Rule	Aus	1917	only	-	Jan	 1	2:00s	1:00	D
+Rule	Aus	1917	only	-	Mar	lastSun	2:00s	0	S
+Rule	Aus	1942	only	-	Jan	 1	2:00s	1:00	D
+Rule	Aus	1942	only	-	Mar	lastSun	2:00s	0	S
+Rule	Aus	1942	only	-	Sep	27	2:00s	1:00	D
+Rule	Aus	1943	1944	-	Mar	lastSun	2:00s	0	S
+Rule	Aus	1943	only	-	Oct	 3	2:00s	1:00	D
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 # Northern Territory
@@ -138,8 +135,12 @@ Zone Australia/Adelaide	9:14:20 -	LMT	1895 Feb
 # says King Island didn't observe DST from WWII until late 1971.
 #
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
+Rule	AT	1916	only	-	Oct	Sun>=1	2:00s	1:00	D
+Rule	AT	1917	only	-	Mar	lastSun	2:00s	0	S
+Rule	AT	1917	1918	-	Oct	Sun>=22	2:00s	1:00	D
+Rule	AT	1918	1919	-	Mar	Sun>=1	2:00s	0	S
 Rule	AT	1967	only	-	Oct	Sun>=1	2:00s	1:00	D
-Rule	AT	1968	only	-	Mar	lastSun	2:00s	0	S
+Rule	AT	1968	only	-	Mar	Sun>=29	2:00s	0	S
 Rule	AT	1968	1985	-	Oct	lastSun	2:00s	1:00	D
 Rule	AT	1969	1971	-	Mar	Sun>=8	2:00s	0	S
 Rule	AT	1972	only	-	Feb	lastSun	2:00s	0	S
@@ -159,15 +160,9 @@ Rule	AT	2007	only	-	Mar	lastSun	2:00s	0	S
 Rule	AT	2008	max	-	Apr	Sun>=1	2:00s	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone Australia/Hobart	9:49:16	-	LMT	1895 Sep
-			10:00	-	AEST	1916 Oct  1  2:00
-			10:00	1:00	AEDT	1917 Feb
+			10:00	AT	AE%sT	1919 Oct 24
 			10:00	Aus	AE%sT	1967
 			10:00	AT	AE%sT
-Zone Australia/Currie	9:35:28	-	LMT	1895 Sep
-			10:00	-	AEST	1916 Oct  1  2:00
-			10:00	1:00	AEDT	1917 Feb
-			10:00	Aus	AE%sT	1971 Jul
-			10:00	AT	AE%sT
 
 # Victoria
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
@@ -896,13 +891,36 @@ Zone	Pacific/Wake	11:06:28 -	LMT	1901
 
 
 # Vanuatu
+
+# From P Chan (2020-11-27):
+# Joint Daylight Saving Regulation No 59 of 1973
+# New Hebrides Condominium Gazette No 336. December 1973
+# http://www.paclii.org/vu/other/VUNHGovGaz//1973/11.pdf#page=15
+#
+# Joint Daylight Saving (Repeal) Regulation No 10 of 1974
+# New Hebrides Condominium Gazette No 336. March 1974
+# http://www.paclii.org/vu/other/VUNHGovGaz//1974/3.pdf#page=11
+#
+# Summer Time Act No. 35 of 1982 [commenced 1983-09-01]
+# http://www.paclii.org/vu/other/VUGovGaz/1982/32.pdf#page=48
+#
+# Summer Time Act (Cap 157)
+# Laws of the Republic of Vanuatu Revised Edition 1988
+# http://www.paclii.org/cgi-bin/sinodisp/vu/legis/consol_act1988/sta147/sta147.html
+#
+# Summer Time (Amendment) Act No. 6 of 1991 [commenced 1991-11-11]
+# http://www.paclii.org/vu/legis/num_act/sta1991227/
+#
+# Summer Time (Repeal) Act No. 4 of 1993 [commenced 1993-05-03]
+# http://www.paclii.org/vu/other/VUGovGaz/1993/15.pdf#page=59
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Vanuatu	1983	only	-	Sep	25	0:00	1:00	-
-Rule	Vanuatu	1984	1991	-	Mar	Sun>=23	0:00	0	-
-Rule	Vanuatu	1984	only	-	Oct	23	0:00	1:00	-
-Rule	Vanuatu	1985	1991	-	Sep	Sun>=23	0:00	1:00	-
-Rule	Vanuatu	1992	1993	-	Jan	Sun>=23	0:00	0	-
-Rule	Vanuatu	1992	only	-	Oct	Sun>=23	0:00	1:00	-
+Rule	Vanuatu	1973	only	-	Dec	22	12:00u	1:00	-
+Rule	Vanuatu	1974	only	-	Mar	30	12:00u	0	-
+Rule	Vanuatu	1983	1991	-	Sep	Sat>=22	24:00	1:00	-
+Rule	Vanuatu	1984	1991	-	Mar	Sat>=22	24:00	0	-
+Rule	Vanuatu	1992	1993	-	Jan	Sat>=22	24:00	0	-
+Rule	Vanuatu	1992	only	-	Oct	Sat>=22	24:00	1:00	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13 # Vila
 			11:00	Vanuatu	+11/+12
@@ -981,6 +999,25 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # Electronic Journal of Australian and New Zealand History (1997-03-03)
 # http://www.jcu.edu.au/aff/history/reviews/davison.htm
 
+# From P Chan (2020-11-20):
+# Daylight Saving Act 1916 (No. 40 of 1916) [1916-12-21, commenced 1917-01-01]
+# http://classic.austlii.edu.au/au/legis/cth/num_act/dsa1916401916192/
+#
+# Daylight Saving Repeal Act 1917 (No. 35 of 1917) [1917-09-25]
+# http://classic.austlii.edu.au/au/legis/cth/num_act/dsra1917351917243/
+#
+# Statutory Rules 1941, No. 323 [1941-12-24]
+# https://www.legislation.gov.au/Details/C1941L00323
+#
+# Statutory Rules 1942, No. 392 [1942-09-10]
+# https://www.legislation.gov.au/Details/C1942L00392
+#
+# Statutory Rules 1943, No. 241 [1943-09-29]
+# https://www.legislation.gov.au/Details/C1943L00241
+#
+# All transition times should be 02:00 standard time.
+
+
 # From Paul Eggert (2005-12-08):
 # Implementation Dates of Daylight Saving Time within Australia
 # http://www.bom.gov.au/climate/averages/tables/dst_times.shtml
@@ -1373,6 +1410,27 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 
 # Tasmania
 
+# From P Chan (2020-11-20):
+# Tasmania observed DST in 1916-1919.
+#
+# Daylight Saving Act, 1916 (7 Geo V, No 2) [1916-09-22]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/tdsa19167gvn2267/
+#
+# Daylight Saving Amendment Act, 1917 (8 Geo V, No 5) [1917-10-01]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/tdsaa19178gvn5347/
+#
+# Daylight Saving Act Repeal Act, 1919 (10 Geo V, No 9) [1919-10-24]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/tdsara191910gvn9339/
+#
+# King Island is mentioned in the 1967 Act but not the 1968 Act.
+# Therefore it possibly observed DST from 1968/69.
+#
+# Daylight Saving Act 1967 (No. 33 of 1967) [1967-09-22]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/dsa196733o1967211/
+#
+# Daylight Saving Act 1968 (No. 42 of 1968) [1968-10-15]
+# http://classic.austlii.edu.au/au/legis/tas/num_act/dsa196842o1968211/
+
 # The rules for 1967 through 1991 were reported by George Shepherd
 # via Simon Woodhead via Robert Elz (1991-03-06):
 # #  The state of TASMANIA.. [Courtesy Tasmanian Dept of Premier + Cabinet ]

make/data/tzdata/backward

@@ -72,6 +72,7 @@ Link	Atlantic/Faroe		Atlantic/Faeroe
 Link	Europe/Oslo		Atlantic/Jan_Mayen
 Link	Australia/Sydney	Australia/ACT
 Link	Australia/Sydney	Australia/Canberra
+Link	Australia/Hobart	Australia/Currie
 Link	Australia/Lord_Howe	Australia/LHI
 Link	Australia/Sydney	Australia/NSW
 Link	Australia/Darwin	Australia/North

make/data/tzdata/etcetera

@@ -26,12 +26,11 @@
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
-# These entries are mostly present for historical reasons, so that
-# people in areas not otherwise covered by the tz files could "zic -l"
-# to a timezone that was right for their area.  These days, the
-# tz files cover almost all the inhabited world, and the only practical
-# need now for the entries that are not on UTC are for ships at sea
-# that cannot use POSIX TZ settings.
+# These entries are for uses not otherwise covered by the tz database.
+# Their main practical use is for platforms like Android that lack
+# support for POSIX-style TZ strings.  On such platforms these entries
+# can be useful if the timezone database is wrong or if a ship or
+# aircraft at sea is not in a timezone.
 
 # Starting with POSIX 1003.1-2001, the entries below are all
 # unnecessary as settings for the TZ environment variable.  E.g.,

make/data/tzdata/europe

@@ -2915,6 +2915,19 @@ Zone Europe/Astrakhan	 3:12:12 -	LMT	1924 May
 # The law has been published today on
 # http://publication.pravo.gov.ru/Document/View/0001201810110037
 
+# From Alexander Krivenyshev (2020-11-27):
+# The State Duma approved (Nov 24, 2020) the transition of the Volgograd
+# region to the Moscow time zone....
+# https://sozd.duma.gov.ru/bill/1012130-7
+#
+# From Stepan Golosunov (2020-12-05):
+# Currently proposed text for the second reading (expected on December 8) ...
+# changes the date to December 27. https://v1.ru/text/gorod/2020/12/04/69601031/
+#
+# From Stepan Golosunov (2020-12-22):
+# The law was published today on
+# http://publication.pravo.gov.ru/Document/View/0001202012220002
+
 Zone Europe/Volgograd	 2:57:40 -	LMT	1920 Jan  3
 			 3:00	-	+03	1930 Jun 21
 			 4:00	-	+04	1961 Nov 11
@@ -2924,7 +2937,8 @@ Zone Europe/Volgograd	 2:57:40 -	LMT	1920 Jan  3
 			 3:00	Russia	+03/+04	2011 Mar 27  2:00s
 			 4:00	-	+04	2014 Oct 26  2:00s
 			 3:00	-	+03	2018 Oct 28  2:00s
-			 4:00	-	+04
+			 4:00	-	+04	2020 Dec 27  2:00s
+			 3:00	-	+03
 
 # From Paul Eggert (2016-11-11):
 # Europe/Saratov covers:

make/data/tzdata/leapseconds

@@ -29,6 +29,10 @@
 # NIST format leap-seconds.list file, which can be copied from
 # <ftp://ftp.nist.gov/pub/time/leap-seconds.list>
 # or <ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list>.
+# The NIST file is used instead of its IERS upstream counterpart
+# <https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list>
+# because under US law the NIST file is public domain
+# whereas the IERS file's copyright and license status is unclear.
 # For more about leap-seconds.list, please see
 # The NTP Timescale and Leap Seconds
 # <https://www.eecis.udel.edu/~mills/leap.html>.
@@ -91,11 +95,11 @@ Leap	2016	Dec	31	23:59:60	+	S
 # Any additional leap seconds will come after this.
 # This Expires line is commented out for now,
 # so that pre-2020a zic implementations do not reject this file.
-#Expires 2021	Jun	28	00:00:00
+#Expires 2021	Dec	28	00:00:00
 
 # POSIX timestamps for the data in this file:
 #updated 1467936000 (2016-07-08 00:00:00 UTC)
-#expires 1624838400 (2021-06-28 00:00:00 UTC)
+#expires 1640649600 (2021-12-28 00:00:00 UTC)
 
-#	Updated through IERS Bulletin C60
-#	File expires on:  28 June 2021
+#	Updated through IERS Bulletin C61
+#	File expires on:  28 December 2021

make/data/tzdata/northamerica

@@ -2257,7 +2257,7 @@ Zone America/Creston	-7:46:04 -	LMT	1884
 #     to say eight hours behind Greenwich Time.
 #
 # * O.I.C. 1980/02 INTERPRETATION ACT
-#   [no online source found]
+#   https://mm.icann.org/pipermail/tz/attachments/20201125/d5adc93b/CAYTOIC1980-02DST1980-01-04-0001.pdf
 #
 # * Yukon Daylight Saving Time, YOIC 1987/56
 #   https://www.canlii.org/en/yk/laws/regu/yoic-1987-56/latest/yoic-1987-56.html
@@ -2958,12 +2958,38 @@ Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  0:11:56
 #
 # For 1899 Milne gives -5:09:29.5; round that.
 #
+# From P Chan (2020-11-27, corrected on 2020-12-02):
+# There were two periods of DST observed in 1942-1945: 1942-05-01
+# midnight to 1944-12-31 midnight and 1945-02-01 to 1945-10-17 midnight.
+# "midnight" should mean 24:00 from the context.
+#
+# War Time Order 1942 [1942-05-01] and War Time (No. 2) Order 1942  [1942-09-29]
+# Appendix to the Statutes of 7 George VI. and the Year 1942. p 34, 43
+# https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA3-PA34
+# https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA3-PA43
+#
+# War Time Order 1943 [1943-03-31] and War Time Order 1944 [1943-12-29]
+# Appendix to the Statutes of 8 George VI. and the Year 1943. p 9-10, 28-29
+# https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA4-PA9
+# https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA4-PA28
+#
+# War Time Order 1945 [1945-01-31] and the Order which revoke War Time Order
+# 1945 [1945-10-16] Appendix to the Statutes of 9 George VI. and the Year
+# 1945. p 160, 247-248
+# https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA6-PA160
+# https://books.google.com/books?id=5rlNAQAAIAAJ&pg=RA6-PA247
+#
 # From Sue Williams (2006-12-07):
 # The Bahamas announced about a month ago that they plan to change their DST
 # rules to sync with the U.S. starting in 2007....
 # http://www.jonesbahamas.com/?c=45&a=10412
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
+Rule	Bahamas	1942	only	-	May	 1	24:00	1:00	W
+Rule	Bahamas	1944	only	-	Dec	31	24:00	0	S
+Rule	Bahamas	1945	only	-	Feb	 1	0:00	1:00	W
+Rule	Bahamas	1945	only	-	Aug	14	23:00u	1:00	P # Peace
+Rule	Bahamas	1945	only	-	Oct	17	24:00	0	S
 Rule	Bahamas	1964	1975	-	Oct	lastSun	2:00	0	S
 Rule	Bahamas	1964	1975	-	Apr	lastSun	2:00	1:00	D
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
@@ -2987,34 +3013,161 @@ Zone America/Barbados	-3:58:29 -	LMT	1924 # Bridgetown
 			-4:00	Barb	A%sT
 
 # Belize
-# Whitman entirely disagrees with Shanks; go with Shanks & Pottenger.
+
+# From P Chan (2020-11-03):
+# Below are some laws related to the time in British Honduras/Belize:
+#
+# Definition of Time Ordinance, 1927 (No.4 of 1927) [1927-04-01]
+# Ordinances of British Honduras Passed in the Year 1927, p 19-20
+# https://books.google.com/books?id=LqEpAQAAMAAJ&pg=RA3-PA19
+#
+# Definition of Time (Amendment) Ordinance, 1942 (No. 5 of 1942) [1942-06-27]
+# Ordinances of British Honduras Passed in the Year 1942, p 31-32
+# https://books.google.com/books?id=h6MpAQAAMAAJ&pg=RA6-PA95-IA44
+#
+# Definition of Time Ordinance, 1945 (No. 19 of 1945) [1945-12-15]
+# Ordinances of British Honduras Passed in the Year 1945, p 49-50
+# https://books.google.com/books?id=xaMpAQAAMAAJ&pg=RA2-PP1
+#
+# Definition of Time Ordinance, 1947 (No. 1 of 1947) [1947-03-11]
+# Ordinances of British Honduras Passed in the Year 1947, p 1-2
+# https://books.google.com/books?id=xaMpAQAAMAAJ&pg=RA3-PA1
+#
+# Time (Definition of) Ordinance  (Chapter 180)
+# The Laws of British Honduras in Force on the 15th Day of September, 1958 , Volume IV, p 2580
+# https://books.google.com/books?id=v5QpAQAAMAAJ&pg=PA2580
+#
+# Time (Definition of) (Amendment) Ordinance, 1968 (No. 13 of 1968) [1968-08-03]
+# https://books.google.com/books?id=xij7KEB_58wC&pg=RA1-PA428-IA9
+#
+# Definition of Time Act (Chapter 339)
+# Law of Belize, Revised Edition 2000
+# http://www.belizelaw.org/web/lawadmin/PDF%20files/cap339.pdf
+
+# From Paul Eggert (2020-11-03):
+# The transitions below are derived from P Chan's sources, except that the
+# 1973 through 1983 transitions are from Shanks & Pottenger since we have
+# no better data there.
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Belize	1918	1942	-	Oct	Sun>=2	0:00	0:30	-0530
-Rule	Belize	1919	1943	-	Feb	Sun>=9	0:00	0	CST
+Rule	Belize	1918	1941	-	Oct	Sat>=1	24:00	0:30	-0530
+Rule	Belize	1919	1942	-	Feb	Sat>=8	24:00	0	CST
+Rule	Belize	1942	only	-	Jun	27	24:00	1:00	CWT
+Rule	Belize	1945	only	-	Aug	14	23:00u	1:00	CPT
+Rule	Belize	1945	only	-	Dec	15	24:00	0	CST
+Rule	Belize	1947	1967	-	Oct	Sat>=1	24:00	0:30	-0530
+Rule	Belize	1948	1968	-	Feb	Sat>=8	24:00	0	CST
 Rule	Belize	1973	only	-	Dec	 5	0:00	1:00	CDT
 Rule	Belize	1974	only	-	Feb	 9	0:00	0	CST
 Rule	Belize	1982	only	-	Dec	18	0:00	1:00	CDT
 Rule	Belize	1983	only	-	Feb	12	0:00	0	CST
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Belize	-5:52:48 -	LMT	1912 Apr
+Zone	America/Belize	-5:52:48 -	LMT	1912 Apr  1
 			-6:00	Belize	%s
 
 # Bermuda
 
+# From Paul Eggert (2020-11-24):
 # For 1899 Milne gives -4:19:18.3 as the meridian of the clock tower,
-# Bermuda dockyard, Ireland I; round that.
+# Bermuda dockyard, Ireland I.  This agrees with standard offset given in the
+# Daylight Saving Act, 1917 cited below.  Round that to the nearest second.
+# It is not known when this time became standard for Bermuda; guess 1890.
+# The transition to -04 was specified by:
+# 1930: The Time Zone Act, 1929 (1929: No. 39) [1929-11-08]
+# https://books.google.com/books?id=7tdMAQAAIAAJ&pg=RA54-PP1
+
+# From P Chan (2020-11-20):
+# Most of the information can be found online from the Bermuda National
+# Library - Digital Collection which includes The Royal Gazette (RG) until 1957
+# https://bnl.contentdm.oclc.org/digital/
+# I will cite the ID.  For example, [10000] means
+# https://bnl.contentdm.oclc.org/digital/collection/BermudaNP02/id/10000
+#
+# 1917: Apr 5 midnight to Sep 30 midnight
+# Daylight Saving Act, 1917 (1917 No. 13) [1917-04-02]
+# Bermuda Acts and Resolves 1917, p 37-38
+# https://books.google.com/books?id=M-lCAQAAMAAJ&pg=PA36-IA2
+# RG, 1917-04-04, p 6 [42340] gives the spring forward date.
+#
+# 1918: Apr 13 midnight to Sep 15 midnight
+# Daylight Saving Act, 1918 (1918 No. 9) [1918-04-06]
+# Bermuda Acts and Resolves 1917, p 13
+# https://books.google.com/books?id=K-lCAQAAMAAJ&pg=RA1-PA7
+#
+# Note that local mean time was still used before 1930.
+#
+# During WWII, DST was introduced by Defence Regulations
+# 1942: Jan 11 02:00 to Oct 18 02:00 [113646], [115726]
+# 1943: Mar 21 02:00 to Oct 31 02:00 [116704], [118193]
+# 1944: Mar 12 02:00 to Nov 5 02:00 [119225], [121593]
+# 1945: Mar 11 02:00 to Nov 4 02:00 [122369], [124461]
+# RG, 1942-01-08, p 2, 1942-10-12, p 2 , 1943-03-06, p 2, 1943-09-03, p 1,
+# 1944-02-29, p 6, 1944-09-20, p 2, 1945-02-13, p 2, 1945-11-03, p 1
+#
+# In 1946, the House of Assembly rejected DST twice. [128686], [128076]
+# RG, 1946-03-16 p 1,1946-04-13 p 1
+#
+# 1947: third Sunday in May 02:00 to second Sunday in September 02:00
+# DST in 1947 was defined in the Daylight Saving Act, 1947 (1947: No. 12)
+# which expired at the end of the year.  [125784] ,[132405], [144454], [138226]
+# RG, 1947-02-27, p 1, 1947-05-15, p 1, 1947-09-13, p 1, 1947-12-30, p 1
+#
+# 1948-1952: fourth Sunday in May 02:00 to first Sunday in September 02:00
+# DST in 1948 was defined in the Daylight Saving Act, 1948 (1948 : No. 12)
+# which was set to expired at the end of the year but it was extended until
+# the end of 1952 and was not further extended.
+# [129802], [139403], [146008], [135240], [144330], [139049], [143309],
+# [148271], [149773], [153589], [153802], [155924]
+# RG, 1948-04-13, p 1, 1948-05-22, p 1, 1948-09-04, p 1, 1949-05-21, p1,
+# 1949-09-03, p 1, 1950-05-27 p 1, 1950-09-02, p 1, 1951-05-27, p 1,
+# 1951-09-01, p 1, 1952-05-23, p 1, 1952-09-26, p 1, 1952-12-21, p 8
+#
+# In 1953-1955, the House of Assembly rejected DST each year. [158996],
+# [162620], [166720] RG, 1953-05-02, p 1, 1954-04-01 p 1, 1955-03-12, p 1
+#
+# 1956: fourth Sunday in May 02:00 to last Sunday in October 02:00
+# Time Zone (Seasonal Variation) Act, 1956 (1956: No.44) [1956-05-25]
+# Bermuda Public Acts 1956, p 331-332
+# https://books.google.com/books?id=Xs1AlmD_cEwC&pg=PA63
+#
+# The extension of the Act was rejected by the House of Assembly. [176218]
+# RG, 1956-12-13, p 1
+#
+# From the Chronological Table of Public and Private Acts up to 1985, it seems
+# that there does not exist other Acts related to DST before 1973.
+# https://books.google.com/books?id=r9hMAQAAIAAJ&pg=RA23-PA1
+# Public Acts of the Legislature of the Islands of Bermuda, Together with
+# Statutory Instruments in Force Thereunder, Vol VII
 
 # From Dan Jones, reporting in The Royal Gazette (2006-06-26):
-
 # Next year, however, clocks in the US will go forward on the second Sunday
 # in March, until the first Sunday in November.  And, after the Time Zone
 # (Seasonal Variation) Bill 2006 was passed in the House of Assembly on
 # Friday, the same thing will happen in Bermuda.
 # http://www.theroyalgazette.com/apps/pbcs.dll/article?AID=/20060529/NEWS/105290135
 
+# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
+Rule	Bermuda	1917	only	-	Apr	 5	24:00	1:00	-
+Rule	Bermuda	1917	only	-	Sep	30	24:00	0	-
+Rule	Bermuda	1918	only	-	Apr	13	24:00	1:00	-
+Rule	Bermuda	1918	only	-	Sep	15	24:00	0	S
+Rule	Bermuda	1942	only	-	Jan	11	 2:00	1:00	D
+Rule	Bermuda	1942	only	-	Oct	18	 2:00	0	S
+Rule	Bermuda	1943	only	-	Mar	21	 2:00	1:00	D
+Rule	Bermuda	1943	only	-	Oct	31	 2:00	0	S
+Rule	Bermuda	1944	1945	-	Mar	Sun>=8	 2:00	1:00	D
+Rule	Bermuda	1944	1945	-	Nov	Sun>=1	 2:00	0	S
+Rule	Bermuda	1947	only	-	May	Sun>=15	 2:00	1:00	D
+Rule	Bermuda	1947	only	-	Sep	Sun>=8	 2:00	0	S
+Rule	Bermuda	1948	1952	-	May	Sun>=22	 2:00	1:00	D
+Rule	Bermuda	1948	1952	-	Sep	Sun>=1	 2:00	0	S
+Rule	Bermuda	1956	only	-	May	Sun>=22	 2:00	1:00	D
+Rule	Bermuda	1956	only	-	Oct	lastSun	 2:00	0	S
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Atlantic/Bermuda	-4:19:18 -	LMT	1930 Jan  1  2:00 # Hamilton
-			-4:00	-	AST	1974 Apr 28  2:00
+Zone Atlantic/Bermuda	-4:19:18 -	LMT	1890	# Hamilton
+			-4:19:18 Bermuda BMT/BST 1930 Jan 1  2:00
+			-4:00	Bermuda	A%sT	1974 Apr 28  2:00
 			-4:00	Canada	A%sT	1976
 			-4:00	US	A%sT
 
@@ -3597,7 +3750,7 @@ Zone America/Miquelon	-3:44:40 -	LMT	1911 May 15 # St Pierre
 # "Eastern Standard Times Begins 2007
 # Clocks are set back one hour at 2:00 a.m. local Daylight Saving Time"
 # indicating that the normal ET rules are followed.
-#
+
 # From Paul Eggert (2014-08-19):
 # The 2014-08-13 Cabinet meeting decided to stay on UT -04 year-round.  See:
 # http://tcweeklynews.com/daylight-savings-time-to-be-maintained-p5353-127.htm
@@ -3612,19 +3765,42 @@ Zone America/Miquelon	-3:44:40 -	LMT	1911 May 15 # St Pierre
 # during the summer months and Standard Time, also known as Local
 # Time, during the winter months with effect from April 2018 ...
 # https://www.gov.uk/government/news/turks-and-caicos-post-cabinet-meeting-statement--3
-#
 # From Paul Eggert (2017-08-26):
 # The date of effect of the spring 2018 change appears to be March 11,
 # which makes more sense.  See: Hamilton D. Time change back
 # by March 2018 for TCI. Magnetic Media. 2017-08-25.
 # http://magneticmediatv.com/2017/08/time-change-back-by-march-2018-for-tci/
 #
+# From P Chan (2020-11-27):
+# Standard Time Declaration Order 2015 (L.N. 15/2015)
+# http://online.fliphtml5.com/fizd/czin/#p=2
+#
+# Standard Time Declaration Order 2017 (L.N. 31/2017)
+# http://online.fliphtml5.com/fizd/dmcu/#p=2
+#
+# From Tim Parenti (2020-12-05):
+# Although L.N. 31/2017 reads that it "shall come into operation at 2:00 a.m.
+# on 11th March 2018", a precise interpretation here poses some problems.  The
+# order states that "the standard time to be observed throughout the Turks and
+# Caicos Islands shall be the same time zone as the Eastern United States of
+# America" and further clarifies "[f]or the avoidance of doubt" that it
+# "applies to the Eastern Standard Time as well as any changes thereto for
+# Daylight Saving Time."  However, as clocks in Turks and Caicos approached
+# 02:00 -04, and thus the declared implementation time, it was still 01:00 EST
+# (-05), as DST in the Eastern US would not start until an hour later.
+#
+# Since it is unlikely that those on the islands switched their clocks twice in
+# the span of an hour, we assume instead that the adoption of EDT actually took
+# effect once clocks in the Eastern US had sprung forward, from 03:00 -04.
+# This discrepancy only affects the time zone abbreviation and DST flag for the
+# intervening hour, not wall clock times, as -04 was maintained throughout.
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone America/Grand_Turk	-4:44:32 -	LMT	1890
 			-5:07:10 -	KMT	1912 Feb # Kingston Mean Time
 			-5:00	-	EST	1979
-			-5:00	US	E%sT	2015 Nov Sun>=1 2:00
-			-4:00	-	AST	2018 Mar 11 3:00
+			-5:00	US	E%sT	2015 Mar  8  2:00
+			-4:00	-	AST	2018 Mar 11  3:00
 			-5:00	US	E%sT
 
 # British Virgin Is

make/data/tzdata/zone.tab

@@ -79,8 +79,7 @@ AS	-1416-17042	Pacific/Pago_Pago
 AT	+4813+01620	Europe/Vienna
 AU	-3133+15905	Australia/Lord_Howe	Lord Howe Island
 AU	-5430+15857	Antarctica/Macquarie	Macquarie Island
-AU	-4253+14719	Australia/Hobart	Tasmania (most areas)
-AU	-3956+14352	Australia/Currie	Tasmania (King Island)
+AU	-4253+14719	Australia/Hobart	Tasmania
 AU	-3749+14458	Australia/Melbourne	Victoria
 AU	-3352+15113	Australia/Sydney	New South Wales (most areas)
 AU	-3157+14127	Australia/Broken_Hill	New South Wales (Yancowinna)
@@ -153,9 +152,9 @@ CA	+682059-1334300	America/Inuvik	Mountain - NT (west)
 CA	+4906-11631	America/Creston	MST - BC (Creston)
 CA	+5946-12014	America/Dawson_Creek	MST - BC (Dawson Cr, Ft St John)
 CA	+5848-12242	America/Fort_Nelson	MST - BC (Ft Nelson)
+CA	+6043-13503	America/Whitehorse	MST - Yukon (east)
+CA	+6404-13925	America/Dawson	MST - Yukon (west)
 CA	+4916-12307	America/Vancouver	Pacific - BC (most areas)
-CA	+6043-13503	America/Whitehorse	Pacific - Yukon (east)
-CA	+6404-13925	America/Dawson	Pacific - Yukon (west)
 CC	-1210+09655	Indian/Cocos
 CD	-0418+01518	Africa/Kinshasa	Dem. Rep. of Congo (west)
 CD	-1140+02728	Africa/Lubumbashi	Dem. Rep. of Congo (east)
@@ -360,8 +359,8 @@ RU	+554521+0373704	Europe/Moscow	MSK+00 - Moscow area
 # Programs should use zone1970.tab instead; see above.
 UA	+4457+03406	Europe/Simferopol	Crimea
 RU	+5836+04939	Europe/Kirov	MSK+00 - Kirov
+RU	+4844+04425	Europe/Volgograd	MSK+00 - Volgograd
 RU	+4621+04803	Europe/Astrakhan	MSK+01 - Astrakhan
-RU	+4844+04425	Europe/Volgograd	MSK+01 - Volgograd
 RU	+5134+04602	Europe/Saratov	MSK+01 - Saratov
 RU	+5420+04824	Europe/Ulyanovsk	MSK+01 - Ulyanovsk
 RU	+5312+05009	Europe/Samara	MSK+01 - Samara, Udmurtia

make/devkit/createWindowsDevkit2017.sh

@@ -89,19 +89,23 @@ if [ ! -d $DEVKIT_ROOT/VC ]; then
     REDIST_SUBDIR="VC/Redist/MSVC/14.12.25810"
     echo "Copying VC..."
     mkdir -p $DEVKIT_ROOT/VC/bin
+    cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/bin/Hostx64/arm64" $DEVKIT_ROOT/VC/bin/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/bin/Hostx64/x64" $DEVKIT_ROOT/VC/bin/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/bin/Hostx86/x86" $DEVKIT_ROOT/VC/bin/
     mkdir -p $DEVKIT_ROOT/VC/lib
+    cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/lib/arm64" $DEVKIT_ROOT/VC/lib/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/lib/x64" $DEVKIT_ROOT/VC/lib/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/lib/x86" $DEVKIT_ROOT/VC/lib/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/include" $DEVKIT_ROOT/VC/
     mkdir -p $DEVKIT_ROOT/VC/atlmfc/lib
+    cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/lib/arm64" $DEVKIT_ROOT/VC/atlmfc/lib/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/lib/x64" $DEVKIT_ROOT/VC/atlmfc/lib/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/lib/x86" $DEVKIT_ROOT/VC/atlmfc/lib/
     cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/include" $DEVKIT_ROOT/VC/atlmfc/
     mkdir -p $DEVKIT_ROOT/VC/Auxiliary
     cp -r "$VS_INSTALL_DIR/VC/Auxiliary/Build" $DEVKIT_ROOT/VC/Auxiliary/
     mkdir -p $DEVKIT_ROOT/VC/redist
+    cp -r "$VS_INSTALL_DIR/$REDIST_SUBDIR/arm64" $DEVKIT_ROOT/VC/redist/
     cp -r "$VS_INSTALL_DIR/$REDIST_SUBDIR/x64" $DEVKIT_ROOT/VC/redist/
     cp -r "$VS_INSTALL_DIR/$REDIST_SUBDIR/x86" $DEVKIT_ROOT/VC/redist/
 
@@ -111,6 +115,8 @@ if [ ! -d $DEVKIT_ROOT/VC ]; then
     cp $DEVKIT_ROOT/VC/redist/x86/$MSVCP_DLL $DEVKIT_ROOT/VC/bin/x86
     cp $DEVKIT_ROOT/VC/redist/x64/$MSVCR_DLL $DEVKIT_ROOT/VC/bin/x64
     cp $DEVKIT_ROOT/VC/redist/x64/$MSVCP_DLL $DEVKIT_ROOT/VC/bin/x64
+    cp $DEVKIT_ROOT/VC/redist/arm64/$MSVCR_DLL $DEVKIT_ROOT/VC/bin/arm64
+    cp $DEVKIT_ROOT/VC/redist/arm64/$MSVCP_DLL $DEVKIT_ROOT/VC/bin/arm64
 fi
 
 ################################################################################
@@ -128,8 +134,10 @@ if [ ! -d $DEVKIT_ROOT/$SDK_VERSION ]; then
     cp -r "$SDK_INSTALL_DIR/bin/$SDK_FULL_VERSION/x64" $DEVKIT_ROOT/$SDK_VERSION/bin/
     cp -r "$SDK_INSTALL_DIR/bin/$SDK_FULL_VERSION/x86" $DEVKIT_ROOT/$SDK_VERSION/bin/
     mkdir -p $DEVKIT_ROOT/$SDK_VERSION/lib
+    cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/um/arm64" $DEVKIT_ROOT/$SDK_VERSION/lib/
     cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/um/x64" $DEVKIT_ROOT/$SDK_VERSION/lib/
     cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/um/x86" $DEVKIT_ROOT/$SDK_VERSION/lib/
+    cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/ucrt/arm64" $DEVKIT_ROOT/$SDK_VERSION/lib/
     cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/ucrt/x64" $DEVKIT_ROOT/$SDK_VERSION/lib/
     cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/ucrt/x86" $DEVKIT_ROOT/$SDK_VERSION/lib/
     mkdir -p $DEVKIT_ROOT/$SDK_VERSION/Redist
@@ -164,6 +172,13 @@ echo-info "DEVKIT_VS_LIB_x86_64=\"\$DEVKIT_ROOT/VC/lib/x64;\$DEVKIT_ROOT/VC/atlm
 echo-info "DEVKIT_MSVCR_DLL_x86_64=\"\$DEVKIT_ROOT/VC/redist/x64/$MSVCR_DLL\""
 echo-info "DEVKIT_MSVCP_DLL_x86_64=\"\$DEVKIT_ROOT/VC/redist/x64/$MSVCP_DLL\""
 echo-info "DEVKIT_UCRT_DLL_DIR_x86_64=\"\$DEVKIT_ROOT/10/Redist/ucrt/DLLs/x64\""
+echo-info ""
+echo-info "DEVKIT_TOOLCHAIN_PATH_aarch64=\"\$DEVKIT_ROOT/VC/bin/arm64:\$DEVKIT_ROOT/$SDK_VERSION/bin/x64:\$DEVKIT_ROOT/$SDK_VERSION/bin/x86\""
+echo-info "DEVKIT_VS_INCLUDE_aarch64=\"\$DEVKIT_ROOT/VC/include;\$DEVKIT_ROOT/VC/atlmfc/include;\$DEVKIT_ROOT/$SDK_VERSION/include/shared;\$DEVKIT_ROOT/$SDK_VERSION/include/ucrt;\$DEVKIT_ROOT/$SDK_VERSION/include/um;\$DEVKIT_ROOT/$SDK_VERSION/include/winrt\""
+echo-info "DEVKIT_VS_LIB_aarch64=\"\$DEVKIT_ROOT/VC/lib/arm64;\$DEVKIT_ROOT/VC/atlmfc/lib/arm64;\$DEVKIT_ROOT/$SDK_VERSION/lib/arm64\""
+echo-info "DEVKIT_MSVCR_DLL_aarch64=\"\$DEVKIT_ROOT/VC/redist/arm64/$MSVCR_DLL\""
+echo-info "DEVKIT_MSVCP_DLL_aarch64=\"\$DEVKIT_ROOT/VC/redist/arm64/$MSVCP_DLL\""
+echo-info "DEVKIT_UCRT_DLL_DIR_aarch64=\"\$DEVKIT_ROOT/10/Redist/ucrt/DLLs/arm64\""
 
 ################################################################################
 # Copy this script

make/devkit/createWindowsDevkit2019.sh

@@ -0,0 +1,227 @@
+#!/bin/bash
+#
+# Copyright (c) 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.
+#
+
+# This script copies parts of a Visual Studio installation into a devkit
+# suitable for building OpenJDK and OracleJDK. Needs to run in Cygwin or WSL.
+# erik.joelsson@oracle.com
+
+VS_VERSION="2019"
+VS_VERSION_NUM_NODOT="160"
+VS_DLL_VERSION="140"
+SDK_VERSION="10"
+SDK_FULL_VERSION="10.0.17763.0"
+MSVC_DIR="Microsoft.VC142.CRT"
+MSVC_FULL_VERSION="14.12.27508"
+REDIST_FULL_VERSION="14.20.27508"
+
+SCRIPT_DIR="$(cd "$(dirname $0)" > /dev/null && pwd)"
+BUILD_DIR="${SCRIPT_DIR}/../../build/devkit"
+
+################################################################################
+# Prepare settings
+
+UNAME_SYSTEM=`uname -s`
+UNAME_RELEASE=`uname -r`
+
+# Detect cygwin or WSL
+IS_CYGWIN=`echo $UNAME_SYSTEM | grep -i CYGWIN`
+IS_WSL=`echo $UNAME_RELEASE | grep Microsoft`
+if test "x$IS_CYGWIN" != "x"; then
+    BUILD_ENV="cygwin"
+elif test "x$IS_WSL" != "x"; then
+    BUILD_ENV="wsl"
+else
+    echo "Unknown environment; only Cygwin and WSL are supported."
+    exit 1
+fi
+
+if test "x$BUILD_ENV" = "xcygwin"; then
+    WINDOWS_PATH_TO_UNIX_PATH="cygpath -u"
+elif test "x$BUILD_ENV" = "xwsl"; then
+    WINDOWS_PATH_TO_UNIX_PATH="wslpath -u"
+fi
+
+# Work around the insanely named ProgramFiles(x86) env variable
+PROGRAMFILES_X86="$($WINDOWS_PATH_TO_UNIX_PATH "$(cmd.exe /c set | sed -n 's/^ProgramFiles(x86)=//p' | tr -d '\r')")"
+
+# Find Visual Studio installation dir
+VSNNNCOMNTOOLS=`cmd.exe /c echo %VS${VS_VERSION_NUM_NODOT}COMNTOOLS% | tr -d '\r'`
+if [ -d "$VSNNNCOMNTOOLS" ]; then
+    VS_INSTALL_DIR="$($WINDOWS_PATH_TO_UNIX_PATH "$VSNNNCOMNTOOLS/../..")"
+else
+    VS_INSTALL_DIR="${PROGRAMFILES_X86}/Microsoft Visual Studio/2019"
+    VS_INSTALL_DIR="$(ls -d "${VS_INSTALL_DIR}/"{Community,Professional,Enterprise} 2>/dev/null | head -n1)"
+fi
+echo "VS_INSTALL_DIR: $VS_INSTALL_DIR"
+
+# Extract semantic version
+POTENTIAL_INI_FILES="Common7/IDE/wdexpress.isolation.ini Common7/IDE/devenv.isolation.ini"
+for f in $POTENTIAL_INI_FILES; do
+    if [ -f "$VS_INSTALL_DIR/$f" ]; then
+        VS_VERSION_SP="$(grep ^SemanticVersion= "$VS_INSTALL_DIR/$f")"
+        # Remove SemnaticVersion=
+        VS_VERSION_SP="${VS_VERSION_SP#*=}"
+        # Remove suffix of too detailed numbering starting with +
+        VS_VERSION_SP="${VS_VERSION_SP%+*}"
+        break
+    fi
+done
+if [ -z "$VS_VERSION_SP" ]; then
+    echo "Failed to find SP version"
+    exit 1
+fi
+echo "Found Version SP: $VS_VERSION_SP"
+
+# Setup output dirs
+DEVKIT_ROOT="${BUILD_DIR}/VS${VS_VERSION}-${VS_VERSION_SP}-devkit"
+DEVKIT_BUNDLE="${DEVKIT_ROOT}.tar.gz"
+
+echo "Creating devkit in $DEVKIT_ROOT"
+
+MSVCR_DLL=${MSVC_DIR}/vcruntime${VS_DLL_VERSION}.dll
+VCRUNTIME_1_DLL=${MSVC_DIR}/vcruntime${VS_DLL_VERSION}_1.dll
+MSVCP_DLL=${MSVC_DIR}/msvcp${VS_DLL_VERSION}.dll
+
+################################################################################
+# Copy Visual Studio files
+
+TOOLS_VERSION="$(ls "$VS_INSTALL_DIR/VC/Tools/MSVC" | sort -r -n | head -n1)"
+echo "Found Tools version: $TOOLS_VERSION"
+VC_SUBDIR="VC/Tools/MSVC/$TOOLS_VERSION"
+REDIST_VERSION="$(ls "$VS_INSTALL_DIR/VC/Redist/MSVC" | sort -r -n | head -n1)"
+echo "Found Redist version: $REDIST_VERSION"
+REDIST_SUBDIR="VC/Redist/MSVC/$REDIST_VERSION"
+echo "Copying VC..."
+rm -rf $DEVKIT_ROOT/VC
+mkdir -p $DEVKIT_ROOT/VC/bin
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/bin/Hostx64/arm64" $DEVKIT_ROOT/VC/bin/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/bin/Hostx64/x64" $DEVKIT_ROOT/VC/bin/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/bin/Hostx86/x86" $DEVKIT_ROOT/VC/bin/
+mkdir -p $DEVKIT_ROOT/VC/lib
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/lib/arm64" $DEVKIT_ROOT/VC/lib/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/lib/x64" $DEVKIT_ROOT/VC/lib/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/lib/x86" $DEVKIT_ROOT/VC/lib/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/include" $DEVKIT_ROOT/VC/
+mkdir -p $DEVKIT_ROOT/VC/atlmfc/lib
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/lib/arm64" $DEVKIT_ROOT/VC/atlmfc/lib/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/lib/x64" $DEVKIT_ROOT/VC/atlmfc/lib/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/lib/x86" $DEVKIT_ROOT/VC/atlmfc/lib/
+cp -r "$VS_INSTALL_DIR/${VC_SUBDIR}/atlmfc/include" $DEVKIT_ROOT/VC/atlmfc/
+mkdir -p $DEVKIT_ROOT/VC/Auxiliary
+cp -r "$VS_INSTALL_DIR/VC/Auxiliary/Build" $DEVKIT_ROOT/VC/Auxiliary/
+mkdir -p $DEVKIT_ROOT/VC/redist
+cp -r "$VS_INSTALL_DIR/$REDIST_SUBDIR/arm64" $DEVKIT_ROOT/VC/redist/
+cp -r "$VS_INSTALL_DIR/$REDIST_SUBDIR/x64" $DEVKIT_ROOT/VC/redist/
+cp -r "$VS_INSTALL_DIR/$REDIST_SUBDIR/x86" $DEVKIT_ROOT/VC/redist/
+
+# The redist runtime libs are needed to run the compiler but may not be
+# installed on the machine where the devkit will be used.
+cp $DEVKIT_ROOT/VC/redist/x86/$MSVCR_DLL $DEVKIT_ROOT/VC/bin/x86
+cp $DEVKIT_ROOT/VC/redist/x86/$MSVCP_DLL $DEVKIT_ROOT/VC/bin/x86
+cp $DEVKIT_ROOT/VC/redist/x64/$MSVCR_DLL $DEVKIT_ROOT/VC/bin/x64
+cp $DEVKIT_ROOT/VC/redist/x64/$MSVCP_DLL $DEVKIT_ROOT/VC/bin/x64
+cp $DEVKIT_ROOT/VC/redist/arm64/$MSVCR_DLL $DEVKIT_ROOT/VC/bin/arm64
+cp $DEVKIT_ROOT/VC/redist/arm64/$MSVCP_DLL $DEVKIT_ROOT/VC/bin/arm64
+
+################################################################################
+# Copy SDK files
+
+SDK_INSTALL_DIR="$PROGRAMFILES_X86/Windows Kits/$SDK_VERSION"
+echo "SDK_INSTALL_DIR: $SDK_INSTALL_DIR"
+
+SDK_FULL_VERSION="$(ls "$SDK_INSTALL_DIR/bin" | sort -r -n | head -n1)"
+echo "Found SDK version: $SDK_FULL_VERSION"
+UCRT_VERSION="$(ls "$SDK_INSTALL_DIR/Redist" | grep $SDK_VERSION | sort -r -n | head -n1)"
+echo "Found UCRT version: $UCRT_VERSION"
+echo "Copying SDK..."
+rm -rf $DEVKIT_ROOT/$SDK_VERSION
+mkdir -p $DEVKIT_ROOT/$SDK_VERSION/bin
+cp -r "$SDK_INSTALL_DIR/bin/$SDK_FULL_VERSION/x64" $DEVKIT_ROOT/$SDK_VERSION/bin/
+cp -r "$SDK_INSTALL_DIR/bin/$SDK_FULL_VERSION/x86" $DEVKIT_ROOT/$SDK_VERSION/bin/
+mkdir -p $DEVKIT_ROOT/$SDK_VERSION/lib
+cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/um/arm64" $DEVKIT_ROOT/$SDK_VERSION/lib/
+cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/um/x64" $DEVKIT_ROOT/$SDK_VERSION/lib/
+cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/um/x86" $DEVKIT_ROOT/$SDK_VERSION/lib/
+cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/ucrt/arm64" $DEVKIT_ROOT/$SDK_VERSION/lib/
+cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/ucrt/x64" $DEVKIT_ROOT/$SDK_VERSION/lib/
+cp -r "$SDK_INSTALL_DIR/lib/$SDK_FULL_VERSION/ucrt/x86" $DEVKIT_ROOT/$SDK_VERSION/lib/
+mkdir -p $DEVKIT_ROOT/$SDK_VERSION/Redist
+cp -r "$SDK_INSTALL_DIR/Redist/$UCRT_VERSION/ucrt" $DEVKIT_ROOT/$SDK_VERSION/Redist/
+mkdir -p $DEVKIT_ROOT/$SDK_VERSION/include
+cp -r "$SDK_INSTALL_DIR/include/$SDK_FULL_VERSION/"* $DEVKIT_ROOT/$SDK_VERSION/include/
+
+################################################################################
+# Generate devkit.info
+
+echo-info() {
+    echo "$1" >> $DEVKIT_ROOT/devkit.info
+}
+
+echo "Generating devkit.info..."
+rm -f $DEVKIT_ROOT/devkit.info
+echo-info "# This file describes to configure how to interpret the contents of this devkit"
+echo-info "DEVKIT_NAME=\"Microsoft Visual Studio $VS_VERSION $VS_VERSION_SP (devkit)\""
+echo-info "DEVKIT_VS_VERSION=\"$VS_VERSION\""
+echo-info ""
+echo-info "DEVKIT_TOOLCHAIN_PATH_x86=\"\$DEVKIT_ROOT/VC/bin/x86:\$DEVKIT_ROOT/$SDK_VERSION/bin/x86\""
+echo-info "DEVKIT_VS_INCLUDE_x86=\"\$DEVKIT_ROOT/VC/include;\$DEVKIT_ROOT/VC/atlmfc/include;\$DEVKIT_ROOT/$SDK_VERSION/include/shared;\$DEVKIT_ROOT/$SDK_VERSION/include/ucrt;\$DEVKIT_ROOT/$SDK_VERSION/include/um;\$DEVKIT_ROOT/$SDK_VERSION/include/winrt\""
+echo-info "DEVKIT_VS_LIB_x86=\"\$DEVKIT_ROOT/VC/lib/x86;\$DEVKIT_ROOT/VC/atlmfc/lib/x86;\$DEVKIT_ROOT/$SDK_VERSION/lib/x86\""
+echo-info "DEVKIT_MSVCR_DLL_x86=\"\$DEVKIT_ROOT/VC/redist/x86/$MSVCR_DLL\""
+echo-info "DEVKIT_MSVCP_DLL_x86=\"\$DEVKIT_ROOT/VC/redist/x86/$MSVCP_DLL\""
+echo-info "DEVKIT_UCRT_DLL_DIR_x86=\"\$DEVKIT_ROOT/10/Redist/ucrt/DLLs/x86\""
+echo-info ""
+echo-info "DEVKIT_TOOLCHAIN_PATH_x86_64=\"\$DEVKIT_ROOT/VC/bin/x64:\$DEVKIT_ROOT/$SDK_VERSION/bin/x64:\$DEVKIT_ROOT/$SDK_VERSION/bin/x86\""
+echo-info "DEVKIT_VS_INCLUDE_x86_64=\"\$DEVKIT_ROOT/VC/include;\$DEVKIT_ROOT/VC/atlmfc/include;\$DEVKIT_ROOT/$SDK_VERSION/include/shared;\$DEVKIT_ROOT/$SDK_VERSION/include/ucrt;\$DEVKIT_ROOT/$SDK_VERSION/include/um;\$DEVKIT_ROOT/$SDK_VERSION/include/winrt\""
+echo-info "DEVKIT_VS_LIB_x86_64=\"\$DEVKIT_ROOT/VC/lib/x64;\$DEVKIT_ROOT/VC/atlmfc/lib/x64;\$DEVKIT_ROOT/$SDK_VERSION/lib/x64\""
+echo-info "DEVKIT_MSVCR_DLL_x86_64=\"\$DEVKIT_ROOT/VC/redist/x64/$MSVCR_DLL\""
+echo-info "DEVKIT_VCRUNTIME_1_DLL_x86_64=\"\$DEVKIT_ROOT/VC/redist/x64/$VCRUNTIME_1_DLL\""
+echo-info "DEVKIT_MSVCP_DLL_x86_64=\"\$DEVKIT_ROOT/VC/redist/x64/$MSVCP_DLL\""
+echo-info "DEVKIT_UCRT_DLL_DIR_x86_64=\"\$DEVKIT_ROOT/10/Redist/ucrt/DLLs/x64\""
+echo-info ""
+echo-info "DEVKIT_TOOLCHAIN_PATH_aarch64=\"\$DEVKIT_ROOT/VC/bin/arm64:\$DEVKIT_ROOT/$SDK_VERSION/bin/x64:\$DEVKIT_ROOT/$SDK_VERSION/bin/x86\""
+echo-info "DEVKIT_VS_INCLUDE_aarch64=\"\$DEVKIT_ROOT/VC/include;\$DEVKIT_ROOT/VC/atlmfc/include;\$DEVKIT_ROOT/$SDK_VERSION/include/shared;\$DEVKIT_ROOT/$SDK_VERSION/include/ucrt;\$DEVKIT_ROOT/$SDK_VERSION/include/um;\$DEVKIT_ROOT/$SDK_VERSION/include/winrt\""
+echo-info "DEVKIT_VS_LIB_aarch64=\"\$DEVKIT_ROOT/VC/lib/arm64;\$DEVKIT_ROOT/VC/atlmfc/lib/arm64;\$DEVKIT_ROOT/$SDK_VERSION/lib/arm64\""
+echo-info "DEVKIT_MSVCR_DLL_aarch64=\"\$DEVKIT_ROOT/VC/redist/arm64/$MSVCR_DLL\""
+echo-info "DEVKIT_VCRUNTIME_1_DLL_aarch64=\"\$DEVKIT_ROOT/VC/redist/arm64/$VCRUNTIME_1_DLL\""
+echo-info "DEVKIT_MSVCP_DLL_aarch64=\"\$DEVKIT_ROOT/VC/redist/arm64/$MSVCP_DLL\""
+echo-info "DEVKIT_UCRT_DLL_DIR_aarch64=\"\$DEVKIT_ROOT/10/Redist/ucrt/DLLs/arm64\""
+echo-info ""
+echo-info "DEVKIT_TOOLS_VERSION=\"$TOOLS_VERSION\""
+echo-info "DEVKIT_REDIST_VERSION=\"$REDIST_VERSION\""
+echo-info "DEVKIT_SDK_VERSION=\"$SDK_FULL_VERSION\""
+echo-info "DEVKIT_UCRT_VERSION=\"$UCRT_VERSION\""
+
+################################################################################
+# Copy this script
+
+echo "Copying this script..."
+cp $0 $DEVKIT_ROOT/
+
+################################################################################
+# Create bundle
+
+echo "Creating bundle: $DEVKIT_BUNDLE"
+(cd "$DEVKIT_ROOT" && tar zcf "$DEVKIT_BUNDLE" .)

make/gensrc/GensrcMisc.gmk

@@ -63,6 +63,12 @@ ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang), )
   CPP_FLAGS += -x c
 else ifeq ($(TOOLCHAIN_TYPE), microsoft)
   CPP_FLAGS += -nologo
+
+  ifeq ($(OPENJDK_TARGET_CPU),aarch64)
+    # cl.exe does only recognize few file extensions as valid (ex: .c, .h, .cpp), so
+    # make sure *.java.template files are recognized as valid input files
+    CPP_FILEPREFIX = -Tc
+  endif
 endif
 
 # Generate a java source file from a template through the C preprocessor for the
@@ -75,7 +81,7 @@ endif
 define generate-preproc-src
 	$(call MakeDir, $(@D))
 	( $(NAWK) '/@@END_COPYRIGHT@@/{exit}1' $< && \
-	  $(CPP) $(CPP_FLAGS) $(SYSROOT_CFLAGS) $(CFLAGS_JDKLIB) $< \
+	  $(CPP) $(CPP_FLAGS) $(SYSROOT_CFLAGS) $(CFLAGS_JDKLIB) $(CPP_FILEPREFIX) $< \
 	      2> >($(GREP) -v '^$(<F)$$' >&2) \
 	      | $(NAWK) '/@@START_HERE@@/,0' \
 	      |  $(SED) -e 's/@@START_HERE@@/\/\/ AUTOMATICALLY GENERATED FILE - DO NOT EDIT/' \

make/hotspot/gensrc/GensrcAdlc.gmk

@@ -99,6 +99,13 @@ ifeq ($(call check-jvm-feature, compiler2), true)
     ADLCFLAGS += -DAIX=1
   else ifeq ($(OPENJDK_TARGET_OS), macosx)
     ADLCFLAGS += -D_ALLBSD_SOURCE=1 -D_GNU_SOURCE=1
+  else ifeq ($(OPENJDK_TARGET_OS), windows)
+    ifeq ($(call isTargetCpuBits, 64), true)
+      ADLCFLAGS += -D_WIN64=1
+    endif
+    ifeq ($(HOTSPOT_TARGET_CPU_ARCH), aarch64)
+      ADLCFLAGS += -DR18_RESERVED=1
+    endif
   endif
 
   ifneq ($(OPENJDK_TARGET_OS), windows)

make/hotspot/lib/CompileGtest.gmk

@@ -78,6 +78,8 @@ $(eval $(call SetupNativeCompilation, BUILD_GTEST_LIBJVM, \
     DISABLED_WARNINGS_clang := undef switch format-nonliteral \
         tautological-undefined-compare $(BUILD_LIBJVM_DISABLED_WARNINGS_clang), \
     DISABLED_WARNINGS_solstudio := identexpected, \
+    DISABLED_WARNINGS_microsoft := 4100 4127 4146 4201 4244 4291 4351 \
+        4511 4512 4514 4624 4996, \
     LDFLAGS := $(JVM_LDFLAGS), \
     LDFLAGS_solaris := -library=stlport4 $(call SET_SHARED_LIBRARY_ORIGIN), \
     LIBS := $(JVM_LIBS), \

make/hotspot/lib/CompileJvm.gmk

@@ -164,6 +164,8 @@ $(eval $(call SetupNativeCompilation, BUILD_LIBJVM, \
     DISABLED_WARNINGS_solstudio := $(DISABLED_WARNINGS_solstudio), \
     DISABLED_WARNINGS_xlc := 1540-0216 1540-0198 1540-1090 1540-1639 \
         1540-1088 1500-010, \
+    DISABLED_WARNINGS_microsoft := 4100 4127 4146 4201 4244 4291 4351 \
+        4511 4512 4514 4624 4996, \
     ASFLAGS := $(JVM_ASFLAGS), \
     LDFLAGS := $(JVM_LDFLAGS), \
     LIBS := $(JVM_LIBS), \

make/jdk/src/classes/build/tools/generatelsrequivmaps/EquivMapsGenerator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2017, 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
@@ -33,10 +33,12 @@ import java.nio.file.Paths;
 import java.time.ZoneId;
 import java.time.ZonedDateTime;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.TreeMap;
+import java.util.stream.Collectors;
 
 /**
  * This tool reads the IANA Language Subtag Registry data file downloaded from
@@ -75,32 +77,49 @@ public class EquivMapsGenerator {
         String type = null;
         String tag = null;
         String preferred = null;
+        String prefix = null;
 
         for (String line : Files.readAllLines(Paths.get(filename),
                                               Charset.forName("UTF-8"))) {
             line = line.toLowerCase(Locale.ROOT);
-            int index = line.indexOf(' ')+1;
+            int index = line.indexOf(' ') + 1;
             if (line.startsWith("file-date:")) {
                 LSRrevisionDate = line.substring(index);
             } else if (line.startsWith("type:")) {
                 type = line.substring(index);
             } else if (line.startsWith("tag:") || line.startsWith("subtag:")) {
                 tag = line.substring(index);
-            } else if (line.startsWith("preferred-value:")
-                       && !type.equals("extlang")) {
+            } else if (line.startsWith("preferred-value:")) {
                 preferred = line.substring(index);
-                processDeprecatedData(type, tag, preferred);
+            } else if (line.startsWith("prefix:")) {
+                prefix = line.substring(index);
             } else if (line.equals("%%")) {
+                processDeprecatedData(type, tag, preferred, prefix);
                 type = null;
                 tag = null;
+                preferred = null;
+                prefix = null;
             }
         }
+
+        // Last entry
+        processDeprecatedData(type, tag, preferred, prefix);
     }
 
     private static void processDeprecatedData(String type,
                                               String tag,
-                                              String preferred) {
+                                              String preferred,
+                                              String prefix) {
         StringBuilder sb;
+
+        if (type == null || tag == null || preferred == null) {
+            return;
+        }
+
+        if (type.equals("extlang") && prefix != null) {
+            tag = prefix + "-" + tag;
+        }
+
         if (type.equals("region") || type.equals("variant")) {
             if (!initialRegionVariantMap.containsKey(preferred)) {
                 sb = new StringBuilder("-");
@@ -113,7 +132,7 @@ public class EquivMapsGenerator {
                     + " A region/variant subtag \"" + preferred
                     + "\" is registered for more than one subtags.");
             }
-        } else { // language, grandfahered, and redundant
+        } else { // language, extlang, grandfathered, and redundant
             if (!initialLanguageMap.containsKey(preferred)) {
                 sb = new StringBuilder(preferred);
                 sb.append(',');
@@ -131,7 +150,12 @@ public class EquivMapsGenerator {
     private static void generateEquivalentMap() {
         String[] subtags;
         for (String preferred : initialLanguageMap.keySet()) {
-            subtags = initialLanguageMap.get(preferred).toString().split(",");
+            // There are cases where the same tag may appear in two entries, e.g.,
+            // "yue" is defined both as extlang and redundant. Remove the dup.
+            subtags = Arrays.stream(initialLanguageMap.get(preferred).toString().split(","))
+                    .distinct()
+                    .collect(Collectors.toList())
+                    .toArray(new String[0]);
 
             if (subtags.length == 2) {
                 sortedLanguageMap1.put(subtags[0], subtags[1]);
@@ -215,10 +239,7 @@ public class EquivMapsGenerator {
         + "    static final Map<String, String[]> multiEquivsMap;\n"
         + "    static final Map<String, String> regionVariantEquivMap;\n\n"
         + "    static {\n"
-        + "        singleEquivMap = new HashMap<>();\n"
-        + "        multiEquivsMap = new HashMap<>();\n"
-        + "        regionVariantEquivMap = new HashMap<>();\n\n"
-        + "        // This is an auto-generated file and should not be manually edited.\n";
+        + "        singleEquivMap = new HashMap<>(";
 
     private static final String footerText =
         "    }\n\n"
@@ -242,6 +263,12 @@ public class EquivMapsGenerator {
                 Paths.get(fileName))) {
             writer.write(getOpenJDKCopyright());
             writer.write(headerText
+                + (int)(sortedLanguageMap1.size() / 0.75f + 1) + ");\n"
+                + "        multiEquivsMap = new HashMap<>("
+                + (int)(sortedLanguageMap2.size() / 0.75f + 1) + ");\n"
+                + "        regionVariantEquivMap = new HashMap<>("
+                + (int)(sortedRegionVariantMap.size() / 0.75f + 1) + ");\n\n"
+                + "        // This is an auto-generated file and should not be manually edited.\n"
                 + "        //   LSR Revision: " + LSRrevisionDate);
             writer.newLine();
 

make/langtools/tools/propertiesparser/gen/ClassGenerator.java

@@ -25,6 +25,8 @@
 
 package propertiesparser.gen;
 
+import static java.util.stream.Collectors.toList;
+
 import propertiesparser.parser.Message;
 import propertiesparser.parser.MessageFile;
 import propertiesparser.parser.MessageInfo;
@@ -44,11 +46,12 @@ import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.TreeSet;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 import java.util.Properties;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.TreeSet;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -150,7 +153,11 @@ public class ClassGenerator {
     public void generateFactory(MessageFile messageFile, File outDir) {
         Map<FactoryKind, List<Map.Entry<String, Message>>> groupedEntries =
                 messageFile.messages.entrySet().stream()
-                        .collect(Collectors.groupingBy(e -> FactoryKind.parseFrom(e.getKey().split("\\.")[1])));
+                        .collect(
+                                Collectors.groupingBy(
+                                        e -> FactoryKind.parseFrom(e.getKey().split("\\.")[1]),
+                                        TreeMap::new,
+                                        toList()));
         //generate nested classes
         List<String> nestedDecls = new ArrayList<>();
         Set<String> importedTypes = new TreeSet<>();

make/lib/Awt2dLibraries.gmk

@@ -245,7 +245,6 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBAWT, \
     LIBS_macosx := -lmlib_image \
         -framework Cocoa \
         -framework OpenGL \
-        -framework JavaNativeFoundation \
         -framework JavaRuntimeSupport \
         -framework ApplicationServices \
         -framework AudioToolbox, \
@@ -391,7 +390,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBLCMS, \
         common/awt/debug \
         libawt/java2d, \
     HEADERS_FROM_SRC := $(LIBLCMS_HEADERS_FROM_SRC), \
-    DISABLED_WARNINGS_gcc := format-nonliteral type-limits misleading-indentation, \
+    DISABLED_WARNINGS_gcc := format-nonliteral type-limits misleading-indentation stringop-truncation, \
     DISABLED_WARNINGS_clang := tautological-compare, \
     DISABLED_WARNINGS_solstudio := E_STATEMENT_NOT_REACHED, \
     DISABLED_WARNINGS_microsoft := 4819, \
@@ -572,105 +571,43 @@ endif
 ###########################################################################
 
 ifeq ($(USE_EXTERNAL_HARFBUZZ), true)
-  LIBHARFBUZZ_LIBS := $(HARFBUZZ_LIBS)
+   LIBFONTMANAGER_EXTRA_SRC =
+   BUILD_LIBFONTMANAGER_FONTLIB += $(LIBHARFBUZZ_LIBS)
 else
-  HARFBUZZ_CFLAGS := -DHAVE_OT -DHAVE_FALLBACK -DHAVE_UCDN -DHAVE_ROUND
-  # This is better than adding EXPORT_ALL_SYMBOLS
-  ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang solstudio), )
-    HARFBUZZ_CFLAGS += -DHB_EXTERN=__attribute__\(\(visibility\(\"default\"\)\)\)
-  else ifeq ($(TOOLCHAIN_TYPE), microsoft)
-    HARFBUZZ_CFLAGS += -DHB_EXTERN=__declspec\(dllexport\)
-  endif
+   LIBFONTMANAGER_EXTRA_SRC = libharfbuzz
+   HARFBUZZ_CFLAGS := -DHAVE_OT -DHAVE_FALLBACK -DHAVE_UCDN -DHAVE_ROUND
+   ifneq ($(OPENJDK_TARGET_OS), windows)
+     HARFBUZZ_CFLAGS += -DGETPAGESIZE -DHAVE_MPROTECT -DHAVE_PTHREAD \
+                        -DHAVE_SYSCONF -DHAVE_SYS_MMAN_H -DHAVE_UNISTD_H \
+                        -DHB_NO_PRAGMA_GCC_DIAGNOSTIC
+   endif
+   ifneq (, $(findstring $(OPENJDK_TARGET_OS), linux macosx))
+     HARFBUZZ_CFLAGS += -DHAVE_INTEL_ATOMIC_PRIMITIVES
+   endif
 
-  LIBHARFBUZZ_LDFLAGS := $(LDFLAGS_JDKLIB) \
-                         $(call SET_SHARED_LIBRARY_ORIGIN)
-  ifeq ($(TOOLCHAIN_TYPE), gcc)
-    ifeq ($(CC_VERSION_NUMBER), 4.4.7)
-      LIBHARFBUZZ_LDFLAGS := $(subst -Xlinker -z -Xlinker defs,, \
-        $(subst -Wl$(COMMA)-z$(COMMA)defs,,$(LDFLAGS_JDKLIB))) \
-        $(call SET_SHARED_LIBRARY_ORIGIN)
-    endif
-  endif
+   # hb-ft.cc is not presently needed, and requires freetype 2.4.2 or later.
+   LIBFONTMANAGER_EXCLUDE_FILES += libharfbuzz/hb-ft.cc \
+                                   libharfbuzz/hb-coretext.cc
 
-  ifneq ($(OPENJDK_TARGET_OS), windows)
-    HARFBUZZ_CFLAGS += -DGETPAGESIZE -DHAVE_MPROTECT -DHAVE_PTHREAD \
-                       -DHAVE_SYSCONF -DHAVE_SYS_MMAN_H -DHAVE_UNISTD_H \
-                       -DHB_NO_PRAGMA_GCC_DIAGNOSTIC
-  endif
-  ifneq (, $(findstring $(OPENJDK_TARGET_OS), linux macosx))
-    HARFBUZZ_CFLAGS += -DHAVE_INTEL_ATOMIC_PRIMITIVES
-  endif
-  ifeq ($(OPENJDK_TARGET_OS), solaris)
-    HARFBUZZ_CFLAGS += -DHAVE_SOLARIS_ATOMIC_OPS
-  endif
+  HARFBUZZ_EXTRA_HEADER_DIRS := \
+    libharfbuzz/hb-ucdn
 
-  LIBHARFBUZZ_EXCLUDE_FILES += harfbuzz/hb-coretext.cc
+   HARFBUZZ_DISABLED_WARNINGS_gcc := type-limits missing-field-initializers strict-aliasing
+   HARFBUZZ_DISABLED_WARNINGS_CXX_gcc := reorder delete-non-virtual-dtor strict-overflow \
+        maybe-uninitialized class-memaccess
+   HARFBUZZ_DISABLED_WARNINGS_clang := unused-value incompatible-pointer-types \
+        tautological-constant-out-of-range-compare int-to-pointer-cast \
+        undef missing-field-initializers range-loop-analysis
+   HARFBUZZ_DISABLED_WARNINGS_microsoft := 4267 4244 4090 4146 4334 4819 4101 4068 4805 4138
 
-  # hb-ft.cc is not presently needed, and requires freetype 2.4.2 or later.
-  LIBHARFBUZZ_EXCLUDE_FILES += harfbuzz/hb-ft.cc
-
-  LIBHARFBUZZ_CFLAGS += $(HARFBUZZ_CFLAGS)
-
-  # For use by libfontmanager:
-  ifeq ($(OPENJDK_TARGET_OS), windows)
-    LIBHARFBUZZ_LIBS := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/libjharfbuzz/jharfbuzz.lib
-  else ifeq ($(OPENJDK_TARGET_OS), macosx)
-    LIBHARFBUZZ_LIBS := -ljharfbuzz
-  endif
-
-  LIBHARFBUZZ_EXTRA_HEADER_DIRS := \
-    libjharfbuzz/hb-ucdn \
-    #
-
-  LIBHARFBUZZ_OPTIMIZATION := HIGH
-
-  LIBHARFBUZZ_CFLAGS += $(X_CFLAGS) -DLE_STANDALONE -DHEADLESS
-
-  $(eval $(call SetupJdkLibrary, BUILD_LIBHARFBUZZ, \
-      NAME := jharfbuzz, \
-      EXCLUDE_FILES := $(LIBHARFBUZZ_EXCLUDE_FILES), \
-      TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
-      CFLAGS := $(CFLAGS_JDKLIB) $(LIBHARFBUZZ_CFLAGS), \
-      CXXFLAGS := $(CXXFLAGS_JDKLIB) $(LIBHARFBUZZ_CFLAGS), \
-      OPTIMIZATION := $(LIBHARFBUZZ_OPTIMIZATION), \
-      CFLAGS_windows = -DCC_NOEX, \
-      EXTRA_HEADER_DIRS := $(LIBHARFBUZZ_EXTRA_HEADER_DIRS), \
-      WARNINGS_AS_ERRORS_xlc := false, \
-      DISABLED_WARNINGS_gcc := type-limits missing-field-initializers strict-aliasing, \
-      DISABLED_WARNINGS_CXX_gcc := reorder delete-non-virtual-dtor strict-overflow \
-          maybe-uninitialized class-memaccess, \
-      DISABLED_WARNINGS_clang := unused-value incompatible-pointer-types \
-          tautological-constant-out-of-range-compare int-to-pointer-cast \
-          undef missing-field-initializers, \
-      DISABLED_WARNINGS_C_solstudio := \
-          E_INTEGER_OVERFLOW_DETECTED \
-          E_ARG_INCOMPATIBLE_WITH_ARG_L \
-          E_ENUM_VAL_OVERFLOWS_INT_MAX, \
-      DISABLED_WARNINGS_CXX_solstudio := \
-          truncwarn wvarhidenmem wvarhidemem wbadlkginit identexpected \
-          hidevf w_novirtualdescr arrowrtn2 unknownpragma, \
-      DISABLED_WARNINGS_microsoft := 4267 4244 4090 4146 4334 4819 4101 4068 4805 4138, \
-      LDFLAGS := $(LIBHARFBUZZ_LDFLAGS), \
-      LDFLAGS_unix := -L$(INSTALL_LIBRARIES_HERE), \
-      LDFLAGS_aix := -Wl$(COMMA)-berok, \
-      LIBS := $(BUILD_LIBHARFBUZZ), \
-      LIBS_unix := $(LIBM) $(LIBCXX), \
-      LIBS_macosx := -framework CoreText -framework CoreFoundation -framework CoreGraphics, \
-      LIBS_windows := user32.lib, \
-  ))
-
-  ifeq ($(FREETYPE_TO_USE), bundled)
-    $(BUILD_LIBHARFBUZZ): $(BUILD_LIBFREETYPE)
-  endif
-
-  TARGETS += $(BUILD_LIBHARFBUZZ)
+   LIBFONTMANAGER_CFLAGS += $(HARFBUZZ_CFLAGS)
 
 endif
 
 ###########################################################################
 
 LIBFONTMANAGER_EXTRA_HEADER_DIRS := \
-    libjharfbuzz \
+    libharfbuzz \
     common/awt \
     common/font \
     libawt/java2d \
@@ -678,10 +615,10 @@ LIBFONTMANAGER_EXTRA_HEADER_DIRS := \
     libawt/java2d/loops \
     #
 
-LIBFONTMANAGER_CFLAGS += $(LIBFREETYPE_CFLAGS) $(HARFBUZZ_FLAGS)
-BUILD_LIBFONTMANAGER_FONTLIB += $(LIBHARFBUZZ_LIBS) $(LIBFREETYPE_LIBS)
+LIBFONTMANAGER_CFLAGS += $(LIBFREETYPE_CFLAGS)
+BUILD_LIBFONTMANAGER_FONTLIB +=  $(LIBFREETYPE_LIBS)
 
-LIBFONTMANAGER_OPTIMIZATION := HIGH
+LIBFONTMANAGER_OPTIMIZATION := HIGHEST
 
 ifeq ($(OPENJDK_TARGET_OS), windows)
   LIBFONTMANAGER_EXCLUDE_FILES += X11FontScaler.c \
@@ -720,18 +657,13 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBFONTMANAGER, \
     CXXFLAGS := $(CXXFLAGS_JDKLIB) $(LIBFONTMANAGER_CFLAGS), \
     OPTIMIZATION := $(LIBFONTMANAGER_OPTIMIZATION), \
     CFLAGS_windows = -DCC_NOEX, \
-    EXTRA_HEADER_DIRS := $(LIBFONTMANAGER_EXTRA_HEADER_DIRS), \
+    EXTRA_HEADER_DIRS := $(LIBFONTMANAGER_EXTRA_HEADER_DIRS) $(HARFBUZZ_EXTRA_HEADER_DIRS), \
+    EXTRA_SRC := $(LIBFONTMANAGER_EXTRA_SRC), \
     WARNINGS_AS_ERRORS_xlc := false, \
-    DISABLED_WARNINGS_gcc := sign-compare unused-function int-to-pointer-cast, \
-    DISABLED_WARNINGS_clang := sign-compare, \
-    DISABLED_WARNINGS_C_solstudio := \
-        E_INTEGER_OVERFLOW_DETECTED \
-        E_ARG_INCOMPATIBLE_WITH_ARG_L \
-        E_ENUM_VAL_OVERFLOWS_INT_MAX, \
-    DISABLED_WARNINGS_CXX_solstudio := \
-        truncwarn wvarhidenmem wvarhidemem wbadlkginit identexpected \
-        hidevf w_novirtualdescr arrowrtn2 unknownpragma, \
-    DISABLED_WARNINGS_microsoft := 4018 4146 4244 4996 4996 4146 4334 4819 4101 4068 4805 4138, \
+    DISABLED_WARNINGS_gcc := $(HARFBUZZ_DISABLED_WARNINGS_gcc), \
+    DISABLED_WARNINGS_CXX_gcc := $(HARFBUZZ_DISABLED_WARNINGS_CXX_gcc), \
+    DISABLED_WARNINGS_clang := $(HARFBUZZ_DISABLED_WARNINGS_clang), \
+    DISABLED_WARNINGS_microsoft := $(HARFBUZZ_DISABLED_WARNINGS_microsoft), \
     LDFLAGS := $(subst -Xlinker -z -Xlinker defs,, \
         $(subst -Wl$(COMMA)-z$(COMMA)defs,,$(LDFLAGS_JDKLIB))) $(LDFLAGS_CXX_JDK) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \
@@ -739,17 +671,13 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBFONTMANAGER, \
     LDFLAGS_aix := -Wl$(COMMA)-berok, \
     LIBS := $(BUILD_LIBFONTMANAGER_FONTLIB), \
     LIBS_unix := -lawt -ljava -ljvm $(LIBM) $(LIBCXX), \
-    LIBS_macosx := -lawt_lwawt, \
+    LIBS_macosx := -lawt_lwawt -framework CoreText -framework CoreFoundation -framework CoreGraphics, \
     LIBS_windows := $(WIN_JAVA_LIB) advapi32.lib user32.lib gdi32.lib \
         $(WIN_AWT_LIB), \
 ))
 
 $(BUILD_LIBFONTMANAGER): $(BUILD_LIBAWT)
 
-ifeq ($(USE_EXTERNAL_HARFBUZZ), false)
-  $(BUILD_LIBFONTMANAGER): $(BUILD_LIBHARFBUZZ)
-endif
-
 ifeq ($(OPENJDK_TARGET_OS), macosx)
   $(BUILD_LIBFONTMANAGER): $(call FindLib, $(MODULE), awt_lwawt)
 endif
@@ -936,8 +864,7 @@ ifeq ($(ENABLE_HEADLESS_ONLY), false)
         $(LIBM) -lpthread -liconv -losxapp \
         -framework ApplicationServices \
         -framework Foundation \
-        -framework Cocoa \
-        -framework JavaNativeFoundation
+        -framework Cocoa
   else ifeq ($(OPENJDK_TARGET_OS), windows)
     LIBSPLASHSCREEN_LIBS += kernel32.lib user32.lib gdi32.lib delayimp.lib $(WIN_JAVA_LIB) jvm.lib
   else
@@ -1033,7 +960,6 @@ ifeq ($(OPENJDK_TARGET_OS), macosx)
           -framework Cocoa \
           -framework Security \
           -framework ExceptionHandling \
-          -framework JavaNativeFoundation \
           -framework JavaRuntimeSupport \
           -framework OpenGL \
           -framework QuartzCore -ljava, \
@@ -1071,7 +997,6 @@ ifeq ($(OPENJDK_TARGET_OS), macosx)
           -framework Cocoa \
           -framework Carbon \
           -framework ApplicationServices \
-          -framework JavaNativeFoundation \
           -framework JavaRuntimeSupport \
           -ljava -ljvm, \
   ))

make/lib/Lib-java.base.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
@@ -110,9 +110,9 @@ ifeq ($(OPENJDK_TARGET_OS), macosx)
             $(call SET_SHARED_LIBRARY_ORIGIN), \
         LIBS := \
             -lobjc \
-            -framework JavaNativeFoundation \
             -framework CoreServices \
             -framework Security \
+            -framework Foundation \
             $(JDKLIB_LIBS), \
     ))
 

make/lib/Lib-java.desktop.gmk

@@ -96,6 +96,7 @@ ifeq ($(OPENJDK_TARGET_OS), macosx)
       LDFLAGS := $(LDFLAGS_JDKLIB) \
           $(call SET_SHARED_LIBRARY_ORIGIN), \
       LIBS := \
+          -ljava \
           -framework Accelerate \
           -framework ApplicationServices \
           -framework AudioToolbox \
@@ -103,13 +104,14 @@ ifeq ($(OPENJDK_TARGET_OS), macosx)
           -framework Cocoa \
           -framework Security \
           -framework ExceptionHandling \
-          -framework JavaNativeFoundation \
           -framework JavaRuntimeSupport \
           -framework OpenGL \
           -framework IOSurface \
           -framework QuartzCore, \
   ))
 
+  $(BUILD_LIBOSXAPP): $(call FindLib, java.base, java)
+
   TARGETS += $(BUILD_LIBOSXAPP)
 
   ##############################################################################
@@ -127,7 +129,6 @@ ifeq ($(OPENJDK_TARGET_OS), macosx)
           -losxapp \
           -framework Cocoa \
           -framework ApplicationServices \
-          -framework JavaNativeFoundation \
           -framework JavaRuntimeSupport \
           -framework SystemConfiguration \
           $(JDKLIB_LIBS), \

make/lib/Lib-java.security.jgss.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
@@ -78,8 +78,8 @@ ifneq ($(BUILD_CRYPTO), false)
         DISABLED_WARNINGS_clang := deprecated-declarations, \
         LDFLAGS := $(LDFLAGS_JDKLIB) \
             $(call SET_SHARED_LIBRARY_ORIGIN), \
-        LIBS := -framework JavaNativeFoundation -framework Cocoa \
-            -framework SystemConfiguration -framework Kerberos, \
+        LIBS := -framework Cocoa -framework SystemConfiguration \
+            -framework Kerberos, \
     ))
 
     TARGETS += $(BUILD_LIBOSXKRB5)

make/lib/Lib-jdk.hotspot.agent.gmk

@@ -67,7 +67,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBSA, \
     LDFLAGS := $(LDFLAGS_JDKLIB) $(SA_LDFLAGS), \
     LIBS_linux := -lthread_db $(LIBDL), \
     LIBS_solaris := -ldl -ldemangle -lthread -lproc, \
-    LIBS_macosx := -framework Foundation -framework JavaNativeFoundation \
+    LIBS_macosx := -framework Foundation \
         -framework JavaRuntimeSupport -framework Security -framework CoreFoundation, \
     LIBS_windows := dbgeng.lib, \
 ))

make/test/JtregNativeJdk.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2015, 2018, 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
@@ -76,11 +76,13 @@ else
 endif
 
 ifeq ($(OPENJDK_TARGET_OS), macosx)
-  BUILD_JDK_JTREG_LIBRARIES_CFLAGS_libTestMainKeyWindow := -ObjC
-  BUILD_JDK_JTREG_LIBRARIES_LIBS_libTestMainKeyWindow := -framework Cocoa \
-      -framework JavaNativeFoundation
+  BUILD_JDK_JTREG_LIBRARIES_LIBS_libTestMainKeyWindow := \
+      -framework Cocoa
+  BUILD_JDK_JTREG_LIBRARIES_LIBS_libTestDynamicStore := \
+      -framework Cocoa -framework SystemConfiguration
 else
-  BUILD_JDK_JTREG_EXCLUDE += libTestMainKeyWindow.c
+  BUILD_JDK_JTREG_EXCLUDE += libTestMainKeyWindow.m
+  BUILD_JDK_JTREG_EXCLUDE += libTestDynamicStore.m
 endif
 
 ifeq ($(OPENJDK_TARGET_OS), windows)

src/hotspot/cpu/aarch64/aarch64_ad.m4

@@ -164,14 +164,11 @@ define(`BFM_INSN',`// This pattern is automatically generated from aarch64_ad.m4
 instruct $4$1(iReg$1NoSp dst, iReg$1`'ORL2I($1) src, immI lshift_count, immI rshift_count)
 %{
   match(Set dst EXTEND($1, $3, src, lshift_count, rshift_count));
-  // Make sure we are not going to exceed what $4 can do.
-  predicate((unsigned int)n->in(2)->get_int() <= $2
-            && (unsigned int)n->in(1)->in(2)->get_int() <= $2);
-
   ins_cost(INSN_COST * 2);
   format %{ "$4  $dst, $src, $rshift_count - $lshift_count, #$2 - $lshift_count" %}
   ins_encode %{
-    int lshift = $lshift_count$$constant, rshift = $rshift_count$$constant;
+    int lshift = $lshift_count$$constant & $2;
+    int rshift = $rshift_count$$constant & $2;
     int s = $2 - lshift;
     int r = (rshift - lshift) & $2;
     __ $4(as_Register($dst$$reg),
@@ -235,46 +232,44 @@ instruct ubfxIConvI2L(iRegLNoSp dst, iRegIorL2I src, immI rshift, immI_bitmask m
   ins_pipe(ialu_reg_shift);
 %}
 
-define(`UBFIZ_INSN', `// This pattern is automatically generated from aarch64_ad.m4
-// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
-
-// We can use ubfiz when masking by a positive number and then left shifting the result.
+define(`UBFIZ_INSN', `// We can use ubfiz when masking by a positive number and then left shifting the result.
 // We know that the mask is positive because imm$1_bitmask guarantees it.
-instruct $2$1(iReg$1NoSp dst, iReg$1`'ORL2I($1) src, immI lshift, imm$1_bitmask mask)
+instruct $3$1$8(iReg$2NoSp dst, iReg$1`'ORL2I($1) src, immI lshift, $7 mask)
 %{
-  match(Set dst (LShift$1 (And$1 src mask) lshift));
-  predicate((unsigned int)n->in(2)->get_int() <= $3 &&
-    (exact_log2$5(n->in(1)->in(2)->get_$4()+1) + (unsigned int)n->in(2)->get_int()) <= ($3+1));
+  ifelse($8,,
+    match(Set dst (LShift$1 (And$1 src mask) lshift));,
+    match(Set dst ($8 (LShift$1 (And$1 src mask) lshift)));)
+  ifelse($8,,
+    predicate(($6(n->in(1)->in(2)->get_$5() + 1) + (n->in(2)->get_int() & $4)) <= ($4 + 1));,
+    predicate(($6(n->in(1)->in(1)->in(2)->get_$5() + 1) + (n->in(1)->in(2)->get_int() & $4)) <= 31);)
 
   ins_cost(INSN_COST);
-  format %{ "$2 $dst, $src, $lshift, $mask" %}
+  format %{ "$3 $dst, $src, $lshift, $mask" %}
   ins_encode %{
-    int lshift = $lshift$$constant;
+    int lshift = $lshift$$constant & $4;
     intptr_t mask = $mask$$constant;
-    int width = exact_log2$5(mask+1);
-    __ $2(as_Register($dst$$reg),
+    int width = $6(mask+1);
+    __ $3(as_Register($dst$$reg),
           as_Register($src$$reg), lshift, width);
   %}
   ins_pipe(ialu_reg_shift);
 %}
 ')
-UBFIZ_INSN(I, ubfizw, 31, int)
-UBFIZ_INSN(L, ubfiz, 63, long, _long)
+UBFIZ_INSN(I, I, ubfizw, 31, int,  exact_log2,      immI_bitmask)
+UBFIZ_INSN(L, L, ubfiz,  63, long, exact_log2_long, immL_bitmask)
+UBFIZ_INSN(I, L, ubfizw, 31, int,  exact_log2,      immI_bitmask,           ConvI2L)
+UBFIZ_INSN(L, I, ubfiz,  63, long, exact_log2_long, immL_positive_bitmaskI, ConvL2I)
 
-// This pattern is automatically generated from aarch64_ad.m4
-// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
-
-// If there is a convert I to L block between and AndI and a LShiftL, we can also match ubfiz
-instruct ubfizIConvI2L(iRegLNoSp dst, iRegIorL2I src, immI lshift, immI_bitmask mask)
+define(`BFX1_INSN', `// If there is a convert $1 to $2 block between and And$1 and a LShift$2, we can also match ubfiz
+instruct ubfiz$1Conv$3$9(iReg$2NoSp dst, iReg$1`'ORL2I($1) src, immI lshift, $8 mask)
 %{
-  match(Set dst (LShiftL (ConvI2L(AndI src mask)) lshift));
-  predicate((unsigned int)n->in(2)->get_int() <= 31 &&
-    (exact_log2((unsigned int)n->in(1)->in(1)->in(2)->get_int()+1) + (unsigned int)n->in(2)->get_int()) <= 32);
+  match(Set dst (LShift$2 (Conv$3 (And$1 src mask)) lshift));
+  predicate(($4(n->in(1)->in(1)->in(2)->$5() + 1) + (n->in(2)->get_int() & $6)) <= $7);
 
   ins_cost(INSN_COST);
   format %{ "ubfiz $dst, $src, $lshift, $mask" %}
   ins_encode %{
-    int lshift = $lshift$$constant;
+    int lshift = $lshift$$constant & $6;
     intptr_t mask = $mask$$constant;
     int width = exact_log2(mask+1);
     __ ubfiz(as_Register($dst$$reg),
@@ -282,7 +277,20 @@ instruct ubfizIConvI2L(iRegLNoSp dst, iRegIorL2I src, immI lshift, immI_bitmask
   %}
   ins_pipe(ialu_reg_shift);
 %}
-
+')dnl
+BFX1_INSN(I, L, I2L, exact_log2,      get_int,  63, (63 + 1), immI_bitmask)
+BFX1_INSN(L, I, L2I, exact_log2_long, get_long, 31, 31,       immL_positive_bitmaskI, x)
+// Can skip int2long conversions after AND with small bitmask
+instruct ubfizIConvI2LAndI(iRegLNoSp dst, iRegI src, immI_bitmask msk)
+%{
+  match(Set dst (ConvI2L (AndI src msk)));
+  ins_cost(INSN_COST);
+  format %{ "ubfiz $dst, $src, 0, exact_log2($msk + 1) " %}
+  ins_encode %{
+    __ ubfiz(as_Register($dst$$reg), as_Register($src$$reg), 0, exact_log2($msk$$constant + 1));
+  %}
+  ins_pipe(ialu_reg_shift);
+%}
 
 // Rotations dnl
 define(`EXTRACT_INSN',`
@@ -291,7 +299,7 @@ define(`EXTRACT_INSN',`
 instruct extr$3$1(iReg$1NoSp dst, iReg$1`'ORL2I($1) src1, iReg$1`'ORL2I($1) src2, immI lshift, immI rshift, rFlagsReg cr)
 %{
   match(Set dst ($3$1 (LShift$1 src1 lshift) (URShift$1 src2 rshift)));
-  predicate(0 == ((n->in(1)->in(2)->get_int() + n->in(2)->in(2)->get_int()) & $2));
+  predicate(0 == (((n->in(1)->in(2)->get_int() & $2) + (n->in(2)->in(2)->get_int() & $2)) & $2));
 
   ins_cost(INSN_COST);
   format %{ "extr $dst, $src1, $src2, #$rshift" %}

src/hotspot/cpu/aarch64/abstractInterpreter_aarch64.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -135,7 +135,20 @@ void AbstractInterpreter::layout_activation(Method* method,
   // interpreter_frame_sender_sp interpreter_frame_sender_sp is
   // the original sp of the caller (the unextended_sp) and
   // sender_sp is fp+8/16 (32bit/64bit) XXX
-  intptr_t* locals = interpreter_frame->sender_sp() + max_locals - 1;
+  //
+  // The interpreted method entry on AArch64 aligns SP to 16 bytes
+  // before generating the fixed part of the activation frame. So there
+  // may be a gap between the locals block and the saved sender SP. For
+  // an interpreted caller we need to recreate this gap and exactly
+  // align the incoming parameters with the caller's temporary
+  // expression stack. For other types of caller frame it doesn't
+  // matter.
+  intptr_t* locals;
+  if (caller->is_interpreted_frame()) {
+    locals = caller->interpreter_frame_last_sp() + caller_actual_parameters - 1;
+  } else {
+    locals = interpreter_frame->sender_sp() + max_locals - 1;
+  }
 
 #ifdef ASSERT
   if (caller->is_interpreted_frame()) {

src/hotspot/cpu/aarch64/assembler_aarch64.hpp

@@ -28,6 +28,19 @@
 
 #include "asm/register.hpp"
 
+#ifdef __GNUC__
+
+// __nop needs volatile so that compiler doesn't optimize it away
+#define NOP() asm volatile ("nop");
+
+#elif defined(_MSC_VER)
+
+// Use MSVC instrinsic: https://docs.microsoft.com/en-us/cpp/intrinsics/arm64-intrinsics?view=vs-2019#I
+#define NOP() __nop();
+
+#endif
+
+
 // definitions of various symbolic names for machine registers
 
 // First intercalls between C and Java which use 8 general registers
@@ -188,7 +201,7 @@ public:
   static inline uint32_t extract(uint32_t val, int msb, int lsb) {
     int nbits = msb - lsb + 1;
     assert_cond(msb >= lsb);
-    uint32_t mask = (1U << nbits) - 1;
+    uint32_t mask = checked_cast<uint32_t>(right_n_bits(nbits));
     uint32_t result = val >> lsb;
     result &= mask;
     return result;
@@ -201,9 +214,9 @@ public:
 
   static void patch(address a, int msb, int lsb, uint64_t val) {
     int nbits = msb - lsb + 1;
-    guarantee(val < (1U << nbits), "Field too big for insn");
+    guarantee(val < (1ULL << nbits), "Field too big for insn");
     assert_cond(msb >= lsb);
-    unsigned mask = (1U << nbits) - 1;
+    unsigned mask = checked_cast<unsigned>(right_n_bits(nbits));
     val <<= lsb;
     mask <<= lsb;
     unsigned target = *(unsigned *)a;
@@ -217,7 +230,7 @@ public:
     int64_t chk = val >> (nbits - 1);
     guarantee (chk == -1 || chk == 0, "Field too big for insn");
     unsigned uval = val;
-    unsigned mask = (1U << nbits) - 1;
+    unsigned mask = checked_cast<unsigned>(right_n_bits(nbits));
     uval &= mask;
     uval <<= lsb;
     mask <<= lsb;
@@ -229,9 +242,9 @@ public:
 
   void f(unsigned val, int msb, int lsb) {
     int nbits = msb - lsb + 1;
-    guarantee(val < (1U << nbits), "Field too big for insn");
+    guarantee(val < (1ULL << nbits), "Field too big for insn");
     assert_cond(msb >= lsb);
-    unsigned mask = (1U << nbits) - 1;
+    unsigned mask = checked_cast<unsigned>(right_n_bits(nbits));
     val <<= lsb;
     mask <<= lsb;
     insn |= val;
@@ -250,7 +263,7 @@ public:
     int64_t chk = val >> (nbits - 1);
     guarantee (chk == -1 || chk == 0, "Field too big for insn");
     unsigned uval = val;
-    unsigned mask = (1U << nbits) - 1;
+    unsigned mask = checked_cast<unsigned>(right_n_bits(nbits));
     uval &= mask;
     f(uval, lsb + nbits - 1, lsb);
   }
@@ -275,7 +288,7 @@ public:
 
   unsigned get(int msb = 31, int lsb = 0) {
     int nbits = msb - lsb + 1;
-    unsigned mask = ((1U << nbits) - 1) << lsb;
+    unsigned mask = checked_cast<unsigned>(right_n_bits(nbits)) << lsb;
     assert_cond((bits & mask) == mask);
     return (insn & mask) >> lsb;
   }
@@ -295,7 +308,7 @@ class PrePost {
   int _offset;
   Register _r;
 public:
-  PrePost(Register reg, int o) : _r(reg), _offset(o) { }
+  PrePost(Register reg, int o) : _offset(o), _r(reg) { }
   int offset() { return _offset; }
   Register reg() { return _r; }
 };
@@ -306,10 +319,12 @@ public:
 };
 class Post : public PrePost {
   Register _idx;
+  bool _is_postreg;
 public:
-  Post(Register reg, int o) : PrePost(reg, o) { _idx = NULL; }
-  Post(Register reg, Register idx) : PrePost(reg, 0) { _idx = idx; }
+  Post(Register reg, int o) : PrePost(reg, o) { _idx = NULL; _is_postreg = false; }
+  Post(Register reg, Register idx) : PrePost(reg, 0) { _idx = idx; _is_postreg = true; }
   Register idx_reg() { return _idx; }
+  bool is_postreg() {return _is_postreg; }
 };
 
 namespace ext
@@ -330,7 +345,7 @@ class Address {
     ext::operation _op;
   public:
     extend() { }
-    extend(int s, int o, ext::operation op) : _shift(s), _option(o), _op(op) { }
+    extend(int s, int o, ext::operation op) : _option(o), _shift(s), _op(op) { }
     int option() const{ return _option; }
     int shift() const { return _shift; }
     ext::operation op() const { return _op; }
@@ -375,32 +390,31 @@ class Address {
   Address()
     : _mode(no_mode) { }
   Address(Register r)
-    : _mode(base_plus_offset), _base(r), _offset(0), _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(0), _mode(base_plus_offset), _target(0) { }
   Address(Register r, int o)
-    : _mode(base_plus_offset), _base(r), _offset(o), _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(o), _mode(base_plus_offset), _target(0) { }
   Address(Register r, long o)
-    : _mode(base_plus_offset), _base(r), _offset(o), _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(o), _mode(base_plus_offset), _target(0) { }
   Address(Register r, long long o)
-    : _mode(base_plus_offset), _base(r), _offset(o), _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(o), _mode(base_plus_offset), _target(0) { }
   Address(Register r, unsigned int o)
-    : _mode(base_plus_offset), _base(r), _offset(o), _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(o), _mode(base_plus_offset), _target(0) { }
   Address(Register r, unsigned long o)
-    : _mode(base_plus_offset), _base(r), _offset(o), _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(o), _mode(base_plus_offset), _target(0) { }
   Address(Register r, unsigned long long o)
-    : _mode(base_plus_offset), _base(r), _offset(o), _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(o), _mode(base_plus_offset), _target(0) { }
 #ifdef ASSERT
   Address(Register r, ByteSize disp)
-    : _mode(base_plus_offset), _base(r), _offset(in_bytes(disp)),
-      _index(noreg), _target(0) { }
+    : _base(r), _index(noreg), _offset(in_bytes(disp)), _mode(base_plus_offset), _target(0) { }
 #endif
   Address(Register r, Register r1, extend ext = lsl())
-    : _mode(base_plus_offset_reg), _base(r), _index(r1),
-    _ext(ext), _offset(0), _target(0) { }
+    : _base(r), _index(r1), _offset(0), _mode(base_plus_offset_reg),
+      _ext(ext), _target(0) { }
   Address(Pre p)
-    : _mode(pre), _base(p.reg()), _offset(p.offset()) { }
+    : _base(p.reg()), _offset(p.offset()), _mode(pre) { }
   Address(Post p)
-    : _mode(p.idx_reg() == NULL ? post : post_reg), _base(p.reg()),
-      _offset(p.offset()), _target(0), _index(p.idx_reg()) { }
+    : _base(p.reg()),  _index(p.idx_reg()), _offset(p.offset()),
+      _mode(p.is_postreg() ? post_reg : post), _target(0) { }
   Address(address target, RelocationHolder const& rspec)
     : _mode(literal),
       _rspec(rspec),
@@ -409,7 +423,7 @@ class Address {
   Address(address target, relocInfo::relocType rtype = relocInfo::external_word_type);
   Address(Register base, RegisterOrConstant index, extend ext = lsl())
     : _base (base),
-      _ext(ext), _offset(0), _target(0) {
+      _offset(0), _ext(ext), _target(0) {
     if (index.is_register()) {
       _mode = base_plus_offset_reg;
       _index = index.as_register();
@@ -422,8 +436,8 @@ class Address {
   }
 
   Register base() const {
-    guarantee((_mode == base_plus_offset | _mode == base_plus_offset_reg
-               | _mode == post | _mode == post_reg),
+    guarantee((_mode == base_plus_offset || _mode == base_plus_offset_reg
+               || _mode == post || _mode == post_reg),
               "wrong mode");
     return _base;
   }
@@ -481,8 +495,7 @@ class Address {
         if (size == 0) // It's a byte
           i->f(_ext.shift() >= 0, 12);
         else {
-          if (_ext.shift() > 0)
-            assert(_ext.shift() == (int)size, "bad shift");
+          assert(_ext.shift() <= 0 || _ext.shift() == (int)size, "bad shift");
           i->f(_ext.shift() > 0, 12);
         }
         i->f(0b10, 11, 10);
@@ -559,14 +572,7 @@ class Address {
 
   void lea(MacroAssembler *, Register) const;
 
-  static bool offset_ok_for_immed(int64_t offset, int shift = 0) {
-    unsigned mask = (1 << shift) - 1;
-    if (offset < 0 || offset & mask) {
-      return (uabs((julong)offset) < (1 << (20 - 12))); // Unscaled offset
-    } else {
-      return ((offset >> shift) < (1 << (21 - 10 + 1))); // Scaled, unsigned offset
-    }
-  }
+  static bool offset_ok_for_immed(int64_t offset, uint shift = 0);
 };
 
 // Convience classes
@@ -609,7 +615,9 @@ class InternalAddress: public Address {
   InternalAddress(address target) : Address(target, relocInfo::internal_word_type) {}
 };
 
-const int FPUStateSizeInWords = 32 * 2;
+const int FPUStateSizeInWords = FloatRegisterImpl::number_of_registers *
+                                FloatRegisterImpl::save_slots_per_register;
+
 typedef enum {
   PLDL1KEEP = 0b00000, PLDL1STRM, PLDL2KEEP, PLDL2STRM, PLDL3KEEP, PLDL3STRM,
   PSTL1KEEP = 0b10000, PSTL1STRM, PSTL2KEEP, PSTL2STRM, PSTL3KEEP, PSTL3STRM,
@@ -623,7 +631,7 @@ class Assembler : public AbstractAssembler {
 
   void emit_long(jint x) {
     if ((uintptr_t)pc() == asm_bp)
-      asm volatile ("nop");
+      NOP();
     AbstractAssembler::emit_int32(x);
   }
 #else
@@ -655,6 +663,8 @@ public:
     return Address(Post(base, idx));
   }
 
+  static address locate_next_instruction(address inst);
+
   Instruction_aarch64* current;
 
   void set_current(Instruction_aarch64* i) { current = i; }
@@ -806,32 +816,34 @@ public:
 #undef INSN
 
   // Bitfield
-#define INSN(NAME, opcode)                                              \
+#define INSN(NAME, opcode, size)                                        \
   void NAME(Register Rd, Register Rn, unsigned immr, unsigned imms) {   \
     starti;                                                             \
+    guarantee(size == 1 || (immr < 32 && imms < 32), "incorrect immr/imms");\
     f(opcode, 31, 22), f(immr, 21, 16), f(imms, 15, 10);                \
     zrf(Rn, 5), rf(Rd, 0);                                              \
   }
 
-  INSN(sbfmw, 0b0001001100);
-  INSN(bfmw,  0b0011001100);
-  INSN(ubfmw, 0b0101001100);
-  INSN(sbfm,  0b1001001101);
-  INSN(bfm,   0b1011001101);
-  INSN(ubfm,  0b1101001101);
+  INSN(sbfmw, 0b0001001100, 0);
+  INSN(bfmw,  0b0011001100, 0);
+  INSN(ubfmw, 0b0101001100, 0);
+  INSN(sbfm,  0b1001001101, 1);
+  INSN(bfm,   0b1011001101, 1);
+  INSN(ubfm,  0b1101001101, 1);
 
 #undef INSN
 
   // Extract
-#define INSN(NAME, opcode)                                              \
+#define INSN(NAME, opcode, size)                                        \
   void NAME(Register Rd, Register Rn, Register Rm, unsigned imms) {     \
     starti;                                                             \
+    guarantee(size == 1 || imms < 32, "incorrect imms");                \
     f(opcode, 31, 21), f(imms, 15, 10);                                 \
-    rf(Rm, 16), rf(Rn, 5), rf(Rd, 0);                                   \
+    zrf(Rm, 16), zrf(Rn, 5), zrf(Rd, 0);                                \
   }
 
-  INSN(extrw, 0b00010011100);
-  INSN(extr,  0b10010011110);
+  INSN(extrw, 0b00010011100, 0);
+  INSN(extr,  0b10010011110, 1);
 
 #undef INSN
 
@@ -1125,7 +1137,7 @@ public:
     Register Rn, enum operand_size sz, int op, bool ordered) {
     starti;
     f(sz, 31, 30), f(0b001000, 29, 24), f(op, 23, 21);
-    rf(Rs, 16), f(ordered, 15), rf(Rt2, 10), srf(Rn, 5), zrf(Rt1, 0);
+    rf(Rs, 16), f(ordered, 15), zrf(Rt2, 10), srf(Rn, 5), zrf(Rt1, 0);
   }
 
   void load_exclusive(Register dst, Register addr,
@@ -1218,8 +1230,8 @@ public:
       /* The size bit is in bit 30, not 31 */
       sz = (operand_size)(sz == word ? 0b00:0b01);
     }
-    f(sz, 31, 30), f(0b001000, 29, 24), f(1, 23), f(a, 22), f(1, 21);
-    rf(Rs, 16), f(r, 15), f(0b11111, 14, 10), rf(Rn, 5), rf(Rt, 0);
+    f(sz, 31, 30), f(0b001000, 29, 24), f(not_pair ? 1 : 0, 23), f(a, 22), f(1, 21);
+    zrf(Rs, 16), f(r, 15), f(0b11111, 14, 10), srf(Rn, 5), zrf(Rt, 0);
   }
 
   // CAS
@@ -1254,7 +1266,7 @@ public:
                   enum operand_size sz, int op1, int op2, bool a, bool r) {
     starti;
     f(sz, 31, 30), f(0b111000, 29, 24), f(a, 23), f(r, 22), f(1, 21);
-    rf(Rs, 16), f(op1, 15), f(op2, 14, 12), f(0, 11, 10), rf(Rn, 5), zrf(Rt, 0);
+    zrf(Rs, 16), f(op1, 15), f(op2, 14, 12), f(0, 11, 10), srf(Rn, 5), zrf(Rt, 0);
   }
 
 #define INSN(NAME, NAME_A, NAME_L, NAME_AL, op1, op2)                   \
@@ -1476,6 +1488,7 @@ public:
   void NAME(Register Rd, Register Rn, Register Rm,              \
             enum shift_kind kind = LSL, unsigned shift = 0) {   \
     starti;                                                     \
+    guarantee(size == 1 || shift < 32, "incorrect shift");      \
     f(N, 21);                                                   \
     zrf(Rm, 16), zrf(Rn, 5), zrf(Rd, 0);                        \
     op_shifted_reg(0b01010, kind, shift, size, op);             \
@@ -1520,6 +1533,11 @@ public:
 
 #undef INSN
 
+#ifdef _WIN64
+// In MSVC, `mvn` is defined as a macro and it affects compilation
+#undef mvn
+#endif
+
   // Aliases for short forms of orn
 void mvn(Register Rd, Register Rm,
             enum shift_kind kind = LSL, unsigned shift = 0) {
@@ -1538,6 +1556,7 @@ void mvnw(Register Rd, Register Rm,
     starti;                                             \
     f(0, 21);                                           \
     assert_cond(kind != ROR);                           \
+    guarantee(size == 1 || shift < 32, "incorrect shift");\
     zrf(Rd, 0), zrf(Rn, 5), zrf(Rm, 16);                \
     op_shifted_reg(0b01011, kind, shift, size, op);     \
   }
@@ -1566,7 +1585,7 @@ void mvnw(Register Rd, Register Rm,
   void add_sub_extended_reg(unsigned op, unsigned decode,
     Register Rd, Register Rn, Register Rm,
     unsigned opt, ext::operation option, unsigned imm) {
-    guarantee(imm <= 4, "shift amount must be < 4");
+    guarantee(imm <= 4, "shift amount must be <= 4");
     f(op, 31, 29), f(decode, 28, 24), f(opt, 23, 22), f(1, 21);
     f(option, 15, 13), f(imm, 12, 10);
   }
@@ -1651,7 +1670,7 @@ void mvnw(Register Rd, Register Rm,
     f(o2, 10);
     f(o3, 4);
     f(nzcv, 3, 0);
-    f(imm5, 20, 16), rf(Rn, 5);
+    f(imm5, 20, 16), zrf(Rn, 5);
   }
 
 #define INSN(NAME, op)                                                  \
@@ -1852,12 +1871,16 @@ public:
   INSN(fdivs, 0b000, 0b00, 0b0001);
   INSN(fadds, 0b000, 0b00, 0b0010);
   INSN(fsubs, 0b000, 0b00, 0b0011);
+  INSN(fmaxs, 0b000, 0b00, 0b0100);
+  INSN(fmins, 0b000, 0b00, 0b0101);
   INSN(fnmuls, 0b000, 0b00, 0b1000);
 
   INSN(fmuld, 0b000, 0b01, 0b0000);
   INSN(fdivd, 0b000, 0b01, 0b0001);
   INSN(faddd, 0b000, 0b01, 0b0010);
   INSN(fsubd, 0b000, 0b01, 0b0011);
+  INSN(fmaxd, 0b000, 0b01, 0b0100);
+  INSN(fmind, 0b000, 0b01, 0b0101);
   INSN(fnmuld, 0b000, 0b01, 0b1000);
 
 #undef INSN
@@ -2000,6 +2023,21 @@ public:
 #undef INSN
 #undef INSN1
 
+// Floating-point compare. 3-registers versions (scalar).
+#define INSN(NAME, sz, e)                                             \
+  void NAME(FloatRegister Vd, FloatRegister Vn, FloatRegister Vm) {   \
+    starti;                                                           \
+    f(0b01111110, 31, 24), f(e, 23), f(sz, 22), f(1, 21), rf(Vm, 16); \
+    f(0b111011, 15, 10), rf(Vn, 5), rf(Vd, 0);                        \
+  }                                                                   \
+
+  INSN(facged, 1, 0); // facge-double
+  INSN(facges, 0, 0); // facge-single
+  INSN(facgtd, 1, 1); // facgt-double
+  INSN(facgts, 0, 1); // facgt-single
+
+#undef INSN
+
   // Floating-point Move (immediate)
 private:
   unsigned pack(double value);
@@ -2116,7 +2154,12 @@ public:
   }
   void ld_st(FloatRegister Vt, SIMD_Arrangement T, Register Xn,
              int imm, int op1, int op2, int regs) {
-    guarantee(T <= T1Q && imm == SIMD_Size_in_bytes[T] * regs, "bad offset");
+
+    bool replicate = op2 >> 2 == 3;
+    // post-index value (imm) is formed differently for replicate/non-replicate ld* instructions
+    int expectedImmediate = replicate ? regs * (1 << (T >> 1)) : SIMD_Size_in_bytes[T] * regs;
+    guarantee(T < T1Q , "incorrect arrangement");
+    guarantee(imm == expectedImmediate, "bad offset");
     starti;
     f(0,31), f((int)T & 1, 30);
     f(op1 | 0b100, 29, 21), f(0b11111, 20, 16), f(op2, 15, 12);
@@ -2223,39 +2266,62 @@ public:
 
 #undef INSN
 
-#define INSN(NAME, opc, opc2)                                                                 \
+#define INSN(NAME, opc, opc2, acceptT2D)                                                \
   void NAME(FloatRegister Vd, SIMD_Arrangement T, FloatRegister Vn, FloatRegister Vm) { \
+    guarantee(T != T1Q && T != T1D, "incorrect arrangement");                           \
+    if (!acceptT2D) guarantee(T != T2D, "incorrect arrangement");                       \
     starti;                                                                             \
     f(0, 31), f((int)T & 1, 30), f(opc, 29), f(0b01110, 28, 24);                        \
     f((int)T >> 1, 23, 22), f(1, 21), rf(Vm, 16), f(opc2, 15, 10);                      \
     rf(Vn, 5), rf(Vd, 0);                                                               \
   }
 
-  INSN(addv, 0, 0b100001);
-  INSN(subv, 1, 0b100001);
-  INSN(mulv, 0, 0b100111);
-  INSN(mlav, 0, 0b100101);
-  INSN(mlsv, 1, 0b100101);
-  INSN(sshl, 0, 0b010001);
-  INSN(ushl, 1, 0b010001);
+  INSN(addv,   0, 0b100001, true);  // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S, T2D
+  INSN(subv,   1, 0b100001, true);  // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S, T2D
+  INSN(mulv,   0, 0b100111, false); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
+  INSN(mlav,   0, 0b100101, false); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
+  INSN(mlsv,   1, 0b100101, false); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
+  INSN(sshl,   0, 0b010001, true);  // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S, T2D
+  INSN(ushl,   1, 0b010001, true);  // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S, T2D
+  INSN(umullv, 1, 0b110000, false); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
+  INSN(umlalv, 1, 0b100000, false); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
 
 #undef INSN
 
-#define INSN(NAME, opc, opc2) \
+#define INSN(NAME, opc, opc2, accepted) \
   void NAME(FloatRegister Vd, SIMD_Arrangement T, FloatRegister Vn) {                   \
+    guarantee(T != T1Q && T != T1D, "incorrect arrangement");                           \
+    if (accepted < 3) guarantee(T != T2D, "incorrect arrangement");                     \
+    if (accepted < 2) guarantee(T != T2S, "incorrect arrangement");                     \
+    if (accepted < 1) guarantee(T == T8B || T == T16B, "incorrect arrangement");        \
     starti;                                                                             \
     f(0, 31), f((int)T & 1, 30), f(opc, 29), f(0b01110, 28, 24);                        \
     f((int)T >> 1, 23, 22), f(opc2, 21, 10);                                            \
     rf(Vn, 5), rf(Vd, 0);                                                               \
   }
 
-  INSN(absr,  0, 0b100000101110);
-  INSN(negr,  1, 0b100000101110);
-  INSN(notr,  1, 0b100000010110);
-  INSN(addv,  0, 0b110001101110);
-  INSN(cls,   0, 0b100000010010);
-  INSN(clz,   1, 0b100000010010);
-  INSN(cnt,   0, 0b100000010110);
+  INSN(absr,   0, 0b100000101110, 3); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S, T2D
+  INSN(negr,   1, 0b100000101110, 3); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S, T2D
+  INSN(notr,   1, 0b100000010110, 0); // accepted arrangements: T8B, T16B
+  INSN(addv,   0, 0b110001101110, 1); // accepted arrangements: T8B, T16B, T4H, T8H,      T4S
+  INSN(cls,    0, 0b100000010010, 2); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
+  INSN(clz,    1, 0b100000010010, 2); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
+  INSN(cnt,    0, 0b100000010110, 0); // accepted arrangements: T8B, T16B
+  INSN(uaddlp, 1, 0b100000001010, 2); // accepted arrangements: T8B, T16B, T4H, T8H, T2S, T4S
+  INSN(uaddlv, 1, 0b110000001110, 1); // accepted arrangements: T8B, T16B, T4H, T8H,      T4S
+
+#undef INSN
+
+#define INSN(NAME, opc) \
+  void NAME(FloatRegister Vd, SIMD_Arrangement T, FloatRegister Vn) {                  \
+    starti;                                                                            \
+    assert(T == T4S, "arrangement must be T4S");                                       \
+    f(0, 31), f((int)T & 1, 30), f(0b101110, 29, 24), f(opc, 23),                      \
+    f(T == T4S ? 0 : 1, 22), f(0b110000111110, 21, 10); rf(Vn, 5), rf(Vd, 0);          \
+  }
+
+  INSN(fmaxv, 0);
+  INSN(fminv, 1);
 
 #undef INSN
 
@@ -2266,7 +2332,7 @@ public:
     starti;                                                                            \
     assert(lsl == 0 ||                                                                 \
            ((T == T4H || T == T8H) && lsl == 8) ||                                     \
-           ((T == T2S || T == T4S) && ((lsl >> 3) < 4)), "invalid shift");             \
+           ((T == T2S || T == T4S) && ((lsl >> 3) < 4) && ((lsl & 7) == 0)), "invalid shift");\
     cmode |= lsl >> 2;                                                                 \
     if (T == T4H || T == T8H) cmode |= 0b1000;                                         \
     if (!(T == T4H || T == T8H || T == T2S || T == T4S)) {                             \
@@ -2300,6 +2366,8 @@ public:
   INSN(fsub, 0, 1, 0b110101);
   INSN(fmla, 0, 0, 0b110011);
   INSN(fmls, 0, 1, 0b110011);
+  INSN(fmax, 0, 0, 0b111101);
+  INSN(fmin, 0, 1, 0b111101);
 
 #undef INSN
 
@@ -2359,7 +2427,7 @@ public:
 
   // FMLA/FMLS - Vector - Scalar
   INSN(fmlavs, 0, 0b0001);
-  INSN(fmlsvs, 0, 0b0001);
+  INSN(fmlsvs, 0, 0b0101);
   // FMULX - Vector - Scalar
   INSN(fmulxvs, 1, 0b1001);
 
@@ -2425,7 +2493,22 @@ public:
 
 #undef INSN
 
-  void ushll(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn, SIMD_Arrangement Tb, int shift) {
+#define INSN(NAME, opc, opc2, isSHR)                                    \
+  void NAME(FloatRegister Vd, FloatRegister Vn, int shift){             \
+    starti;                                                             \
+    int encodedShift = isSHR ? 128 - shift : 64 + shift;                \
+    f(0b01, 31, 30), f(opc, 29), f(0b111110, 28, 23),                   \
+    f(encodedShift, 22, 16); f(opc2, 15, 10), rf(Vn, 5), rf(Vd, 0);     \
+  }
+
+  INSN(shld,  0, 0b010101, /* isSHR = */ false);
+  INSN(sshrd, 0, 0b000001, /* isSHR = */ true);
+  INSN(ushrd, 1, 0b000001, /* isSHR = */ true);
+
+#undef INSN
+
+private:
+  void _ushll(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn, SIMD_Arrangement Tb, int shift) {
     starti;
     /* The encodings for the immh:immb fields (bits 22:16) are
      *   0001 xxx       8H, 8B/16b shift = xxx
@@ -2438,8 +2521,16 @@ public:
     f(0, 31), f(Tb & 1, 30), f(0b1011110, 29, 23), f((1 << ((Tb>>1)+3))|shift, 22, 16);
     f(0b101001, 15, 10), rf(Vn, 5), rf(Vd, 0);
   }
+
+public:
+  void ushll(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn,  SIMD_Arrangement Tb, int shift) {
+    assert(Tb == T8B || Tb == T4H || Tb == T2S, "invalid arrangement");
+    _ushll(Vd, Ta, Vn, Tb, shift);
+  }
+
   void ushll2(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn,  SIMD_Arrangement Tb, int shift) {
-    ushll(Vd, Ta, Vn, Tb, shift);
+    assert(Tb == T16B || Tb == T8H || Tb == T4S, "invalid arrangement");
+    _ushll(Vd, Ta, Vn, Tb, shift);
   }
 
   // Move from general purpose register
@@ -2447,19 +2538,21 @@ public:
   void mov(FloatRegister Vd, SIMD_Arrangement T, int index, Register Xn) {
     starti;
     f(0b01001110000, 31, 21), f(((1 << (T >> 1)) | (index << ((T >> 1) + 1))), 20, 16);
-    f(0b000111, 15, 10), rf(Xn, 5), rf(Vd, 0);
+    f(0b000111, 15, 10), zrf(Xn, 5), rf(Vd, 0);
   }
 
   // Move to general purpose register
   //   mov  Rd, Vn.T[index]
   void mov(Register Xd, FloatRegister Vn, SIMD_Arrangement T, int index) {
+    guarantee(T >= T2S && T < T1Q, "only D and S arrangements are supported");
     starti;
     f(0, 31), f((T >= T1D) ? 1:0, 30), f(0b001110000, 29, 21);
     f(((1 << (T >> 1)) | (index << ((T >> 1) + 1))), 20, 16);
     f(0b001111, 15, 10), rf(Vn, 5), rf(Xd, 0);
   }
 
-  void pmull(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn, FloatRegister Vm, SIMD_Arrangement Tb) {
+private:
+  void _pmull(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn, FloatRegister Vm, SIMD_Arrangement Tb) {
     starti;
     assert((Ta == T1Q && (Tb == T1D || Tb == T2D)) ||
            (Ta == T8H && (Tb == T8B || Tb == T16B)), "Invalid Size specifier");
@@ -2467,9 +2560,16 @@ public:
     f(0, 31), f(Tb & 1, 30), f(0b001110, 29, 24), f(size, 23, 22);
     f(1, 21), rf(Vm, 16), f(0b111000, 15, 10), rf(Vn, 5), rf(Vd, 0);
   }
+
+public:
+  void pmull(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn, FloatRegister Vm, SIMD_Arrangement Tb) {
+    assert(Tb == T1D || Tb == T8B, "pmull assumes T1D or T8B as the second size specifier");
+    _pmull(Vd, Ta, Vn, Vm, Tb);
+  }
+
   void pmull2(FloatRegister Vd, SIMD_Arrangement Ta, FloatRegister Vn, FloatRegister Vm, SIMD_Arrangement Tb) {
     assert(Tb == T2D || Tb == T16B, "pmull2 assumes T2D or T16B as the second size specifier");
-    pmull(Vd, Ta, Vn, Vm, Tb);
+    _pmull(Vd, Ta, Vn, Vm, Tb);
   }
 
   void uqxtn(FloatRegister Vd, SIMD_Arrangement Tb, FloatRegister Vn, SIMD_Arrangement Ta) {
@@ -2486,7 +2586,7 @@ public:
     starti;
     assert(T != T1D, "reserved encoding");
     f(0,31), f((int)T & 1, 30), f(0b001110000, 29, 21);
-    f((1 << (T >> 1)), 20, 16), f(0b000011, 15, 10), rf(Xs, 5), rf(Vd, 0);
+    f((1 << (T >> 1)), 20, 16), f(0b000011, 15, 10), zrf(Xs, 5), rf(Vd, 0);
   }
 
   void dup(FloatRegister Vd, SIMD_Arrangement T, FloatRegister Vn, int index = 0)
@@ -2501,6 +2601,7 @@ public:
   // AdvSIMD ZIP/UZP/TRN
 #define INSN(NAME, opcode)                                              \
   void NAME(FloatRegister Vd, SIMD_Arrangement T, FloatRegister Vn, FloatRegister Vm) { \
+    guarantee(T != T1D && T != T1Q, "invalid arrangement");             \
     starti;                                                             \
     f(0, 31), f(0b001110, 29, 24), f(0, 21), f(0, 15);                  \
     f(opcode, 14, 12), f(0b10, 11, 10);                                 \

src/hotspot/cpu/aarch64/assembler_aarch64.inline.hpp

@@ -30,4 +30,16 @@
 #include "asm/codeBuffer.hpp"
 #include "code/codeCache.hpp"
 
+
+inline bool Address::offset_ok_for_immed(int64_t offset, uint shift) {
+  unsigned mask = (1 << shift) - 1;
+  if (offset < 0 || (offset & mask) != 0) {
+    // Unscaled signed offset, encoded in a signed imm9 field.
+    return Assembler::is_simm9(offset);
+  } else {
+    // Scaled unsigned offset, encoded in an unsigned imm12:_ field.
+    return Assembler::is_uimm12(offset >> shift);
+  }
+}
+
 #endif // CPU_AARCH64_VM_ASSEMBLER_AARCH64_INLINE_HPP

src/hotspot/cpu/aarch64/atomic_aarch64.hpp

@@ -0,0 +1,49 @@
+/* Copyright (c) 2021, Red Hat 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ */
+
+#ifndef CPU_AARCH64_ATOMIC_AARCH64_HPP
+#define CPU_AARCH64_ATOMIC_AARCH64_HPP
+
+// Atomic stub implementation.
+// Default implementations are in atomic_linux_aarch64.S
+//
+// All stubs pass arguments the same way
+// x0: src/dest address
+// x1: arg1
+// x2: arg2 (optional)
+// x3, x8, x9: scratch
+typedef uint64_t (*aarch64_atomic_stub_t)(volatile void *ptr, uint64_t arg1, uint64_t arg2);
+
+// Pointers to stubs
+extern aarch64_atomic_stub_t aarch64_atomic_fetch_add_4_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_fetch_add_8_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_xchg_4_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_xchg_8_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_1_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_4_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_8_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_1_relaxed_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_4_relaxed_impl;
+extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_8_relaxed_impl;
+
+#endif // CPU_AARCH64_ATOMIC_AARCH64_HPP

src/hotspot/cpu/aarch64/c1_CodeStubs_aarch64.cpp

@@ -50,13 +50,13 @@ void CounterOverflowStub::emit_code(LIR_Assembler* ce) {
 }
 
 RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index, LIR_Opr array)
-  : _throw_index_out_of_bounds_exception(false), _index(index), _array(array) {
+  : _index(index), _array(array), _throw_index_out_of_bounds_exception(false) {
   assert(info != NULL, "must have info");
   _info = new CodeEmitInfo(info);
 }
 
 RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index)
-  : _throw_index_out_of_bounds_exception(true), _index(index), _array(NULL) {
+  : _index(index), _array(NULL), _throw_index_out_of_bounds_exception(true) {
   assert(info != NULL, "must have info");
   _info = new CodeEmitInfo(info);
 }

src/hotspot/cpu/aarch64/c1_Defs_aarch64.hpp

@@ -44,13 +44,13 @@ enum {
   pd_nof_cpu_regs_frame_map = RegisterImpl::number_of_registers,       // number of registers used during code emission
   pd_nof_fpu_regs_frame_map = FloatRegisterImpl::number_of_registers,  // number of registers used during code emission
 
-  pd_nof_caller_save_cpu_regs_frame_map = 19 - 2 BSD_ONLY(- 1 /* r18 */),  // number of registers killed by calls
+  pd_nof_caller_save_cpu_regs_frame_map = 19 - 2 /* rscratch1 and rscratch2 */ R18_RESERVED_ONLY(- 1),  // number of registers killed by calls
   pd_nof_caller_save_fpu_regs_frame_map = 32,  // number of registers killed by calls
 
-  pd_first_callee_saved_reg = 19 - 2 BSD_ONLY(- 1 /* r18 */),
-  pd_last_callee_saved_reg = 26 - 2 BSD_ONLY(- 1 /* r18 */),
+  pd_first_callee_saved_reg = 19 - 2 /* rscratch1 and rscratch2 */ R18_RESERVED_ONLY(- 1),
+  pd_last_callee_saved_reg = 26 - 2 /* rscratch1 and rscratch2 */ R18_RESERVED_ONLY(- 1),
 
-  pd_last_allocatable_cpu_reg = 16 BSD_ONLY(- 1 /* r18 */),
+  pd_last_allocatable_cpu_reg = 16 R18_RESERVED_ONLY(- 1),
 
   pd_nof_cpu_regs_reg_alloc
     = pd_last_allocatable_cpu_reg + 1,  // number of registers that are visible to register allocator
@@ -60,9 +60,9 @@ enum {
   pd_nof_fpu_regs_linearscan = pd_nof_fpu_regs_frame_map, // number of registers visible to linear scan
   pd_nof_xmm_regs_linearscan = 0, // like sparc we don't have any of these
   pd_first_cpu_reg = 0,
-  pd_last_cpu_reg = 16 BSD_ONLY(- 1 /* r18 */),
+  pd_last_cpu_reg = 16 R18_RESERVED_ONLY(- 1),
   pd_first_byte_reg = 0,
-  pd_last_byte_reg = 16 BSD_ONLY(- 1 /* r18 */),
+  pd_last_byte_reg = 16 R18_RESERVED_ONLY(- 1),
   pd_first_fpu_reg = pd_nof_cpu_regs_frame_map,
   pd_last_fpu_reg =  pd_first_fpu_reg + 31,
 

src/hotspot/cpu/aarch64/c1_FpuStackSim_aarch64.cpp

@@ -28,3 +28,4 @@
 //--------------------------------------------------------
 
 // No FPU stack on AARCH64
+#include "precompiled.hpp"

src/hotspot/cpu/aarch64/c1_FrameMap_aarch64.cpp

@@ -181,8 +181,9 @@ void FrameMap::initialize() {
   map_register(i, r15); r15_opr = LIR_OprFact::single_cpu(i); i++;
   map_register(i, r16); r16_opr = LIR_OprFact::single_cpu(i); i++;
   map_register(i, r17); r17_opr = LIR_OprFact::single_cpu(i); i++;
-#ifndef __APPLE__
-  map_register(i, r18); r18_opr = LIR_OprFact::single_cpu(i); i++;
+#ifndef R18_RESERVED
+  // See comment in register_aarch64.hpp
+  map_register(i, r18_reserved); r18_opr = LIR_OprFact::single_cpu(i); i++;
 #endif
   map_register(i, r19); r19_opr = LIR_OprFact::single_cpu(i); i++;
   map_register(i, r20); r20_opr = LIR_OprFact::single_cpu(i); i++;
@@ -201,8 +202,9 @@ void FrameMap::initialize() {
   map_register(i, r8); r8_opr = LIR_OprFact::single_cpu(i); i++;   // rscratch1
   map_register(i, r9); r9_opr = LIR_OprFact::single_cpu(i); i++;   // rscratch2
 
-#ifdef __APPLE__
-  map_register(i, r18); r18_opr = LIR_OprFact::single_cpu(i); i++;   // rscratch2
+#ifdef R18_RESERVED
+  // See comment in register_aarch64.hpp
+  map_register(i, r18_reserved); r18_opr = LIR_OprFact::single_cpu(i); i++;
 #endif
 
   rscratch1_opr = r8_opr;
@@ -233,7 +235,8 @@ void FrameMap::initialize() {
   _caller_save_cpu_regs[13] = r15_opr;
   _caller_save_cpu_regs[14] = r16_opr;
   _caller_save_cpu_regs[15] = r17_opr;
-#ifndef __APPLE__
+#ifndef R18_RESERVED
+  // See comment in register_aarch64.hpp
   _caller_save_cpu_regs[16] = r18_opr;
 #endif
 
@@ -261,7 +264,7 @@ void FrameMap::initialize() {
   r15_oop_opr = as_oop_opr(r15);
   r16_oop_opr = as_oop_opr(r16);
   r17_oop_opr = as_oop_opr(r17);
-  r18_oop_opr = as_oop_opr(r18);
+  r18_oop_opr = as_oop_opr(r18_reserved);
   r19_oop_opr = as_oop_opr(r19);
   r20_oop_opr = as_oop_opr(r20);
   r21_oop_opr = as_oop_opr(r21);

src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp

@@ -226,6 +226,19 @@ Address LIR_Assembler::as_Address_lo(LIR_Address* addr) {
   // FIXME: This needs to be much more clever.  See x86.
 }
 
+// Ensure a valid Address (base + offset) to a stack-slot. If stack access is
+// not encodable as a base + (immediate) offset, generate an explicit address
+// calculation to hold the address in a temporary register.
+Address LIR_Assembler::stack_slot_address(int index, uint size, Register tmp, int adjust) {
+  precond(size == 4 || size == 8);
+  Address addr = frame_map()->address_for_slot(index, adjust);
+  precond(addr.getMode() == Address::base_plus_offset);
+  precond(addr.base() == sp);
+  precond(addr.offset() > 0);
+  uint mask = size - 1;
+  assert((addr.offset() & mask) == 0, "scaled offsets only");
+  return __ legitimize_address(addr, size, tmp);
+}
 
 void LIR_Assembler::osr_entry() {
   offsets()->set_value(CodeOffsets::OSR_Entry, code_offset());
@@ -436,12 +449,9 @@ int LIR_Assembler::emit_unwind_handler() {
   }
 
   if (compilation()->env()->dtrace_method_probes()) {
-    __ call_Unimplemented();
-#if 0
-    __ movptr(Address(rsp, 0), rax);
-    __ mov_metadata(Address(rsp, sizeof(void*)), method()->constant_encoding());
-    __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit)));
-#endif
+    __ mov(c_rarg0, rthread);
+    __ mov_metadata(c_rarg1, method()->constant_encoding());
+    __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), c_rarg0, c_rarg1);
   }
 
   if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) {
@@ -745,32 +755,38 @@ void LIR_Assembler::reg2reg(LIR_Opr src, LIR_Opr dest) {
 }
 
 void LIR_Assembler::reg2stack(LIR_Opr src, LIR_Opr dest, BasicType type, bool pop_fpu_stack) {
+  precond(src->is_register() && dest->is_stack());
+
+  uint const c_sz32 = sizeof(uint32_t);
+  uint const c_sz64 = sizeof(uint64_t);
+
   if (src->is_single_cpu()) {
+    int index = dest->single_stack_ix();
     if (type == T_ARRAY || type == T_OBJECT) {
-      __ str(src->as_register(), frame_map()->address_for_slot(dest->single_stack_ix()));
+      __ str(src->as_register(), stack_slot_address(index, c_sz64, rscratch1));
       __ verify_oop(src->as_register());
     } else if (type == T_METADATA || type == T_DOUBLE || type == T_ADDRESS) {
-      __ str(src->as_register(), frame_map()->address_for_slot(dest->single_stack_ix()));
+      __ str(src->as_register(), stack_slot_address(index, c_sz64, rscratch1));
     } else {
-      __ strw(src->as_register(), frame_map()->address_for_slot(dest->single_stack_ix()));
+      __ strw(src->as_register(), stack_slot_address(index, c_sz32, rscratch1));
     }
 
   } else if (src->is_double_cpu()) {
-    Address dest_addr_LO = frame_map()->address_for_slot(dest->double_stack_ix(), lo_word_offset_in_bytes);
+    int index = dest->double_stack_ix();
+    Address dest_addr_LO = stack_slot_address(index, c_sz64, rscratch1, lo_word_offset_in_bytes);
     __ str(src->as_register_lo(), dest_addr_LO);
 
   } else if (src->is_single_fpu()) {
-    Address dest_addr = frame_map()->address_for_slot(dest->single_stack_ix());
-    __ strs(src->as_float_reg(), dest_addr);
+    int index = dest->single_stack_ix();
+    __ strs(src->as_float_reg(), stack_slot_address(index, c_sz32, rscratch1));
 
   } else if (src->is_double_fpu()) {
-    Address dest_addr = frame_map()->address_for_slot(dest->double_stack_ix());
-    __ strd(src->as_double_reg(), dest_addr);
+    int index = dest->double_stack_ix();
+    __ strd(src->as_double_reg(), stack_slot_address(index, c_sz64, rscratch1));
 
   } else {
     ShouldNotReachHere();
   }
-
 }
 
 
@@ -855,30 +871,34 @@ void LIR_Assembler::reg2mem(LIR_Opr src, LIR_Opr dest, BasicType type, LIR_Patch
 
 
 void LIR_Assembler::stack2reg(LIR_Opr src, LIR_Opr dest, BasicType type) {
-  assert(src->is_stack(), "should not call otherwise");
-  assert(dest->is_register(), "should not call otherwise");
+  precond(src->is_stack() && dest->is_register());
+
+  uint const c_sz32 = sizeof(uint32_t);
+  uint const c_sz64 = sizeof(uint64_t);
 
   if (dest->is_single_cpu()) {
+    int index = src->single_stack_ix();
     if (type == T_ARRAY || type == T_OBJECT) {
-      __ ldr(dest->as_register(), frame_map()->address_for_slot(src->single_stack_ix()));
+      __ ldr(dest->as_register(), stack_slot_address(index, c_sz64, rscratch1));
       __ verify_oop(dest->as_register());
     } else if (type == T_METADATA || type == T_ADDRESS) {
-      __ ldr(dest->as_register(), frame_map()->address_for_slot(src->single_stack_ix()));
+      __ ldr(dest->as_register(), stack_slot_address(index, c_sz64, rscratch1));
     } else {
-      __ ldrw(dest->as_register(), frame_map()->address_for_slot(src->single_stack_ix()));
+      __ ldrw(dest->as_register(), stack_slot_address(index, c_sz32, rscratch1));
     }
 
   } else if (dest->is_double_cpu()) {
-    Address src_addr_LO = frame_map()->address_for_slot(src->double_stack_ix(), lo_word_offset_in_bytes);
+    int index = src->double_stack_ix();
+    Address src_addr_LO = stack_slot_address(index, c_sz64, rscratch1, lo_word_offset_in_bytes);
     __ ldr(dest->as_register_lo(), src_addr_LO);
 
   } else if (dest->is_single_fpu()) {
-    Address src_addr = frame_map()->address_for_slot(src->single_stack_ix());
-    __ ldrs(dest->as_float_reg(), src_addr);
+    int index = src->single_stack_ix();
+    __ ldrs(dest->as_float_reg(), stack_slot_address(index, c_sz32, rscratch1));
 
   } else if (dest->is_double_fpu()) {
-    Address src_addr = frame_map()->address_for_slot(src->double_stack_ix());
-    __ ldrd(dest->as_double_reg(), src_addr);
+    int index = src->double_stack_ix();
+    __ ldrd(dest->as_double_reg(), stack_slot_address(index, c_sz64, rscratch1));
 
   } else {
     ShouldNotReachHere();
@@ -1027,37 +1047,17 @@ int LIR_Assembler::array_element_size(BasicType type) const {
   return exact_log2(elem_size);
 }
 
-void LIR_Assembler::arithmetic_idiv(LIR_Op3* op, bool is_irem) {
-  Register Rdividend = op->in_opr1()->as_register();
-  Register Rdivisor  = op->in_opr2()->as_register();
-  Register Rscratch  = op->in_opr3()->as_register();
-  Register Rresult   = op->result_opr()->as_register();
-  int divisor = -1;
-
-  /*
-  TODO: For some reason, using the Rscratch that gets passed in is
-  not possible because the register allocator does not see the tmp reg
-  as used, and assignes it the same register as Rdividend. We use rscratch1
-   instead.
-
-  assert(Rdividend != Rscratch, "");
-  assert(Rdivisor  != Rscratch, "");
-  */
-
-  if (Rdivisor == noreg && is_power_of_2(divisor)) {
-    // convert division by a power of two into some shifts and logical operations
-  }
-
-  __ corrected_idivl(Rresult, Rdividend, Rdivisor, is_irem, rscratch1);
-}
 
 void LIR_Assembler::emit_op3(LIR_Op3* op) {
   switch (op->code()) {
   case lir_idiv:
-    arithmetic_idiv(op, false);
-    break;
   case lir_irem:
-    arithmetic_idiv(op, true);
+    arithmetic_idiv(op->code(),
+                    op->in_opr1(),
+                    op->in_opr2(),
+                    op->in_opr3(),
+                    op->result_opr(),
+                    op->info());
     break;
   case lir_fmad:
     __ fmaddd(op->result_opr()->as_double_reg(),
@@ -1755,16 +1755,43 @@ void LIR_Assembler::arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr
       }
 
     } else if (right->is_constant()) {
-      jlong c = right->as_constant_ptr()->as_jlong_bits();
+      jlong c = right->as_constant_ptr()->as_jlong();
       Register dreg = as_reg(dest);
-      assert(code == lir_add || code == lir_sub, "mismatched arithmetic op");
-      if (c == 0 && dreg == lreg_lo) {
-        COMMENT("effective nop elided");
-        return;
-      }
       switch (code) {
-        case lir_add: __ add(dreg, lreg_lo, c); break;
-        case lir_sub: __ sub(dreg, lreg_lo, c); break;
+        case lir_add:
+        case lir_sub:
+          if (c == 0 && dreg == lreg_lo) {
+            COMMENT("effective nop elided");
+            return;
+          }
+          code == lir_add ? __ add(dreg, lreg_lo, c) : __ sub(dreg, lreg_lo, c);
+          break;
+        case lir_div:
+          assert(c > 0 && is_power_of_2_long(c), "divisor must be power-of-2 constant");
+          if (c == 1) {
+            // move lreg_lo to dreg if divisor is 1
+            __ mov(dreg, lreg_lo);
+          } else {
+            unsigned int shift = exact_log2_long(c);
+            // use rscratch1 as intermediate result register
+            __ asr(rscratch1, lreg_lo, 63);
+            __ add(rscratch1, lreg_lo, rscratch1, Assembler::LSR, 64 - shift);
+            __ asr(dreg, rscratch1, shift);
+          }
+          break;
+        case lir_rem:
+          assert(c > 0 && is_power_of_2_long(c), "divisor must be power-of-2 constant");
+          if (c == 1) {
+            // move 0 to dreg if divisor is 1
+            __ mov(dreg, zr);
+          } else {
+            // use rscratch1 as intermediate result register
+            __ negs(rscratch1, lreg_lo);
+            __ andr(dreg, lreg_lo, c - 1);
+            __ andr(rscratch1, rscratch1, c - 1);
+            __ csneg(dreg, dreg, rscratch1, Assembler::MI);
+          }
+          break;
         default:
           ShouldNotReachHere();
       }
@@ -1869,7 +1896,51 @@ void LIR_Assembler::logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr
 
 
 
-void LIR_Assembler::arithmetic_idiv(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr temp, LIR_Opr result, CodeEmitInfo* info) { Unimplemented(); }
+void LIR_Assembler::arithmetic_idiv(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr illegal, LIR_Opr result, CodeEmitInfo* info) {
+
+  // opcode check
+  assert((code == lir_idiv) || (code == lir_irem), "opcode must be idiv or irem");
+  bool is_irem = (code == lir_irem);
+
+  // operand check
+  assert(left->is_single_cpu(),   "left must be register");
+  assert(right->is_single_cpu() || right->is_constant(),  "right must be register or constant");
+  assert(result->is_single_cpu(), "result must be register");
+  Register lreg = left->as_register();
+  Register dreg = result->as_register();
+
+  // power-of-2 constant check and codegen
+  if (right->is_constant()) {
+    int c = right->as_constant_ptr()->as_jint();
+    assert(c > 0 && is_power_of_2(c), "divisor must be power-of-2 constant");
+    if (is_irem) {
+      if (c == 1) {
+        // move 0 to dreg if divisor is 1
+        __ movw(dreg, zr);
+      } else {
+        // use rscratch1 as intermediate result register
+        __ negsw(rscratch1, lreg);
+        __ andw(dreg, lreg, c - 1);
+        __ andw(rscratch1, rscratch1, c - 1);
+        __ csnegw(dreg, dreg, rscratch1, Assembler::MI);
+      }
+    } else {
+      if (c == 1) {
+        // move lreg to dreg if divisor is 1
+        __ movw(dreg, lreg);
+      } else {
+        unsigned int shift = exact_log2(c);
+        // use rscratch1 as intermediate result register
+        __ asrw(rscratch1, lreg, 31);
+        __ addw(rscratch1, lreg, rscratch1, Assembler::LSR, 32 - shift);
+        __ asrw(dreg, rscratch1, shift);
+      }
+    }
+  } else {
+    Register rreg = right->as_register();
+    __ corrected_idivl(dreg, lreg, rreg, is_irem, rscratch1);
+  }
+}
 
 
 void LIR_Assembler::comp_op(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Op2* op) {
@@ -1971,7 +2042,7 @@ void LIR_Assembler::comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Op
   } else if (code == lir_cmp_l2i) {
     Label done;
     __ cmp(left->as_register_lo(), right->as_register_lo());
-    __ mov(dst->as_register(), (u_int64_t)-1L);
+    __ mov(dst->as_register(), (uint64_t)-1L);
     __ br(Assembler::LT, done);
     __ csinc(dst->as_register(), zr, zr, Assembler::EQ);
     __ bind(done);
@@ -2040,6 +2111,13 @@ void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmit
 
   // get current pc information
   // pc is only needed if the method has an exception handler, the unwind code does not need it.
+  if (compilation()->debug_info_recorder()->last_pc_offset() == __ offset()) {
+    // As no instructions have been generated yet for this LIR node it's
+    // possible that an oop map already exists for the current offset.
+    // In that case insert an dummy NOP here to ensure all oop map PCs
+    // are unique. See JDK-8237483.
+    __ nop();
+  }
   int pc_for_athrow_offset = __ offset();
   InternalAddress pc_for_athrow(__ pc());
   __ adr(exceptionPC->as_register(), pc_for_athrow);
@@ -2236,7 +2314,6 @@ void LIR_Assembler::emit_arraycopy(LIR_OpArrayCopy* op) {
   assert(default_type != NULL && default_type->is_array_klass() && default_type->is_loaded(), "must be true at this point");
 
   int elem_size = type2aelembytes(basic_type);
-  int shift_amount;
   int scale = exact_log2(elem_size);
 
   Address src_length_addr = Address(src, arrayOopDesc::length_offset_in_bytes());

src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.hpp

@@ -45,10 +45,12 @@ friend class ArrayCopyStub;
 
   bool is_literal_address(LIR_Address* addr);
 
-  // When we need to use something other than rscratch1 use this
-  // method.
+  // When we need to use something other than rscratch1 use this method.
   Address as_Address(LIR_Address* addr, Register tmp);
 
+  // Ensure we have a valid Address (base+offset) to a stack-slot.
+  Address stack_slot_address(int index, uint shift, Register tmp, int adjust = 0);
+
   // Record the type of the receiver in ReceiverTypeData
   void type_profile_helper(Register mdo,
                            ciMethodData *md, ciProfileData *data,
@@ -77,8 +79,6 @@ friend class ArrayCopyStub;
     _deopt_handler_size = 7 * NativeInstruction::instruction_size
   };
 
-  void arithmetic_idiv(LIR_Op3* op, bool is_irem);
-
 public:
 
   void store_parameter(Register r, int offset_from_esp_in_words);