8274903: Zero: Support AsyncGetCallTrace

Backport-of: 92aa75b721

.github/actions/config/action.yml

@@ -0,0 +1,46 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Config'
+description: 'Read JDK Configuration Variables'
+inputs:
+  var:
+    description: 'The name of the variable to read'
+    required: true
+outputs:
+  value:
+    description: 'The value of the configuration variable'
+    value: ${{ steps.read-config.outputs.value }}
+
+runs:
+  using: composite
+  steps:
+    - name: 'Read configuration variable from repo'
+      id: read-config
+      run: |
+        # Extract value from configuration file
+        value="$(grep -h ${{ inputs.var }}= make/conf/github-actions.conf | cut -d '=' -f 2-)"
+        echo "value=$value" >> $GITHUB_OUTPUT
+      shell: bash

.github/actions/do-build/action.yml

@@ -0,0 +1,80 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Do build'
+description: 'Build the JDK using make'
+inputs:
+  make-target:
+    description: 'Make target(s)'
+    required: true
+  platform:
+    description: 'Platform name'
+    required: true
+  debug-suffix:
+    description: 'File name suffix denoting debug level, possibly empty'
+    required: false
+
+runs:
+  using: composite
+  steps:
+    - name: 'Build'
+      id: build
+      run: >
+        make LOG=info ${{ inputs.make-target }}
+        || bash ./.github/scripts/gen-build-failure-report.sh "$GITHUB_STEP_SUMMARY"
+      shell: bash
+
+    - name: 'Check for failure'
+      id: check
+      run: |
+        # Check for failure marker file
+        build_dir="$(ls -d build/*)"
+        if [[ -e $build_dir/build-failure ]]; then
+          # Collect relevant log files
+          mkdir failure-logs
+          cp \
+              $build_dir/spec.gmk \
+              $build_dir/build.log \
+              $build_dir/configure.log \
+              $build_dir/make-support/failure-summary.log \
+              $build_dir/make-support/failure-logs/* \
+              failure-logs/ 2> /dev/null || true
+          echo 'failure=true' >> $GITHUB_OUTPUT
+        fi
+      shell: bash
+
+    - name: 'Upload build logs'
+      uses: actions/upload-artifact@v3
+      with:
+        name: failure-logs-${{ inputs.platform }}${{ inputs.debug-suffix }}
+        path: failure-logs
+      if: steps.check.outputs.failure == 'true'
+
+      # This is the best way I found to abort the job with an error message
+    - name: 'Notify about build failures'
+      uses: actions/github-script@v6
+      with:
+        script: core.setFailed('Build failed. See summary for details.')
+      if: steps.check.outputs.failure == 'true'

.github/actions/get-bootjdk/action.yml

@@ -0,0 +1,109 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Get BootJDK'
+description: 'Download the BootJDK from cache or source location'
+inputs:
+  platform:
+    description: 'Platform'
+    required: true
+outputs:
+  path:
+    description: 'Path to the installed BootJDK'
+    value: ${{ steps.path-name.outputs.path }}
+
+runs:
+  using: composite
+  steps:
+    - name: 'Determine platform prefix'
+      id: platform-prefix
+      run: |
+        # Convert platform name to upper case
+        platform_prefix="$(echo ${{ inputs.platform }} | tr [a-z-] [A-Z_])"
+        echo "value=$platform_prefix" >> $GITHUB_OUTPUT
+      shell: bash
+
+    - name: 'Get URL configuration'
+      id: url
+      uses: ./.github/actions/config
+      with:
+        var: ${{ steps.platform-prefix.outputs.value}}_BOOT_JDK_URL
+
+    - name: 'Get SHA256 configuration'
+      id: sha256
+      uses: ./.github/actions/config
+      with:
+        var: ${{ steps.platform-prefix.outputs.value}}_BOOT_JDK_SHA256
+
+    - name: 'Get file extension configuration'
+      id: ext
+      uses: ./.github/actions/config
+      with:
+        var: ${{ steps.platform-prefix.outputs.value}}_BOOT_JDK_EXT
+
+    - name: 'Check cache for BootJDK'
+      id: get-cached-bootjdk
+      uses: actions/cache@v3
+      with:
+        path: bootjdk/jdk
+        key: boot-jdk-${{ inputs.platform }}-${{ steps.sha256.outputs.value }}
+
+      # macOS is missing sha256sum
+    - name: 'Install sha256sum'
+      run: |
+        # Run Homebrew installation
+        brew install coreutils
+      shell: bash
+      if: steps.get-cached-bootjdk.outputs.cache-hit != 'true' && runner.os == 'macOS'
+
+    - name: 'Download BootJDK'
+      run: |
+        # Download BootJDK and verify checksum
+        mkdir -p bootjdk/jdk
+        mkdir -p bootjdk/unpacked
+        wget --progress=dot:mega -O bootjdk/jdk.${{ steps.ext.outputs.value }} '${{ steps.url.outputs.value }}'
+        echo '${{ steps.sha256.outputs.value }} bootjdk/jdk.${{ steps.ext.outputs.value }}' | sha256sum -c >/dev/null -
+      shell: bash
+      if: steps.get-cached-bootjdk.outputs.cache-hit != 'true'
+
+    - name: 'Unpack BootJDK'
+      run: |
+        # Unpack the BootJDK and move files to a common location
+        if [[ '${{ steps.ext.outputs.value }}' == 'tar.gz' ]]; then
+          tar -xf bootjdk/jdk.${{ steps.ext.outputs.value }} -C bootjdk/unpacked
+        else
+          unzip -q bootjdk/jdk.${{ steps.ext.outputs.value }} -d bootjdk/unpacked
+        fi
+        jdk_root="$(dirname $(find bootjdk/unpacked -name bin -type d))"
+        mv "$jdk_root"/* bootjdk/jdk/
+      shell: bash
+      if: steps.get-cached-bootjdk.outputs.cache-hit != 'true'
+
+    - name: 'Export path to where BootJDK is installed'
+      id: path-name
+      run: |
+        # Export the path
+        echo 'path=bootjdk/jdk' >> $GITHUB_OUTPUT
+      shell: bash

.github/actions/get-bundles/action.yml

@@ -0,0 +1,109 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Get bundles'
+description: 'Download resulting JDK bundles'
+inputs:
+  platform:
+    description: 'Platform name'
+    required: true
+  debug-suffix:
+    description: 'File name suffix denoting debug level, possibly empty'
+    required: false
+outputs:
+  jdk-path:
+    description: 'Path to the installed JDK bundle'
+    value: ${{ steps.path-name.outputs.jdk }}
+  symbols-path:
+    description: 'Path to the installed symbols bundle'
+    value: ${{ steps.path-name.outputs.symbols }}
+  tests-path:
+    description: 'Path to the installed tests bundle'
+    value: ${{ steps.path-name.outputs.tests }}
+
+runs:
+  using: composite
+  steps:
+    - name: 'Download bundles artifact'
+      id: download-bundles
+      uses: actions/download-artifact@v3
+      with:
+        name: bundles-${{ inputs.platform }}${{ inputs.debug-suffix }}
+        path: bundles
+      continue-on-error: true
+
+    - name: 'Download bundles artifact (retry)'
+      uses: actions/download-artifact@v3
+      with:
+        name: bundles-${{ inputs.platform }}${{ inputs.debug-suffix }}
+        path: bundles
+      if: steps.download-bundles.outcome == 'failure'
+
+    - name: 'Unpack bundles'
+      run: |
+        if [[ -e bundles/jdk-${{ inputs.platform }}${{ inputs.debug-suffix }}.zip ]]; then
+          echo 'Unpacking jdk bundle...'
+          mkdir -p bundles/jdk
+          unzip -q bundles/jdk-${{ inputs.platform }}${{ inputs.debug-suffix }}.zip -d bundles/jdk
+        fi
+
+        if [[ -e bundles/jdk-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz ]]; then
+          echo 'Unpacking jdk bundle...'
+          mkdir -p bundles/jdk
+          tar -xf bundles/jdk-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz -C bundles/jdk
+        fi
+
+        if [[ -e bundles/symbols-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz ]]; then
+          echo 'Unpacking symbols bundle...'
+          mkdir -p bundles/symbols
+          tar -xf bundles/symbols-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz -C bundles/symbols
+        fi
+
+        if [[ -e bundles/tests-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz ]]; then
+          echo 'Unpacking tests bundle...'
+          mkdir -p bundles/tests
+          tar -xf bundles/tests-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz -C bundles/tests
+        fi
+      shell: bash
+
+    - name: 'Export paths to where bundles are installed'
+      id: path-name
+      run: |
+        # Export the paths
+
+        jdk_dir="$GITHUB_WORKSPACE/$(dirname $(find bundles/jdk -name bin -type d))"
+        symbols_dir="$GITHUB_WORKSPACE/$(dirname $(find bundles/symbols -name bin -type d))"
+        tests_dir="$GITHUB_WORKSPACE/bundles/tests"
+
+        if [[ '${{ runner.os }}' == 'Windows' ]]; then
+          jdk_dir="$(cygpath $jdk_dir)"
+          symbols_dir="$(cygpath $symbols_dir)"
+          tests_dir="$(cygpath $tests_dir)"
+        fi
+
+        echo "jdk=$jdk_dir" >> $GITHUB_OUTPUT
+        echo "symbols=$symbols_dir" >> $GITHUB_OUTPUT
+        echo "tests=$tests_dir" >> $GITHUB_OUTPUT
+      shell: bash

.github/actions/get-gtest/action.yml

@@ -0,0 +1,54 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Get GTest'
+description: 'Download GTest source'
+outputs:
+  path:
+    description: 'Path to the installed GTest'
+    value: ${{ steps.path-name.outputs.path }}
+
+runs:
+  using: composite
+  steps:
+    - name: 'Get GTest version configuration'
+      id: version
+      uses: ./.github/actions/config
+      with:
+        var: GTEST_VERSION
+
+    - name: 'Checkout GTest source'
+      uses: actions/checkout@v3
+      with:
+        repository: google/googletest
+        ref: 'release-${{ steps.version.outputs.value }}'
+        path: gtest
+
+    - name: 'Export path to where GTest is installed'
+      id: path-name
+      run: |
+        # Export the path
+        echo 'path=gtest' >> $GITHUB_OUTPUT
+      shell: bash

.github/actions/get-jtreg/action.yml

@@ -0,0 +1,72 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Get JTReg'
+description: 'Download JTReg from cache or source location'
+outputs:
+  path:
+    description: 'Path to the installed JTReg'
+    value: ${{ steps.path-name.outputs.path }}
+
+runs:
+  using: composite
+  steps:
+    - name: 'Get JTReg version configuration'
+      id: version
+      uses: ./.github/actions/config
+      with:
+        var: JTREG_VERSION
+
+    - name: 'Check cache for JTReg'
+      id: get-cached-jtreg
+      uses: actions/cache@v3
+      with:
+        path: jtreg/installed
+        key: jtreg-${{ steps.version.outputs.value }}
+
+    - name: 'Checkout the JTReg source'
+      uses: actions/checkout@v3
+      with:
+        repository: openjdk/jtreg
+        ref: jtreg-${{ steps.version.outputs.value }}
+        path: jtreg/src
+      if: steps.get-cached-jtreg.outputs.cache-hit != 'true'
+
+    - name: 'Build JTReg'
+      run: |
+        # Build JTReg and move files to the proper locations
+        bash make/build.sh --jdk "$JAVA_HOME_11_X64"
+        mkdir ../installed
+        mv build/images/jtreg/* ../installed
+      working-directory: jtreg/src
+      shell: bash
+      if: steps.get-cached-jtreg.outputs.cache-hit != 'true'
+
+    - name: 'Export path to where JTReg is installed'
+      id: path-name
+      run: |
+        # Export the path
+        echo 'path=jtreg/installed' >> $GITHUB_OUTPUT
+      shell: bash

.github/actions/get-msys2/action.yml

@@ -0,0 +1,44 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Get MSYS2'
+description: 'Download MSYS2 and prepare a Windows host'
+
+runs:
+  using: composite
+  steps:
+    - name: 'Install MSYS2'
+      uses: msys2/setup-msys2@v2
+      with:
+        install: 'autoconf tar unzip zip make'
+        path-type: minimal
+        location: msys2
+
+      # We can't run bash until this is completed, so stick with pwsh
+    - name: 'Set MSYS2 path'
+      run: |
+        # Prepend msys2/msys64/usr/bin to the PATH
+        echo "$env:GITHUB_WORKSPACE/msys2/msys64/usr/bin" >> $env:GITHUB_PATH
+      shell: pwsh

.github/actions/upload-bundles/action.yml

@@ -0,0 +1,77 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Upload bundles'
+description: 'Upload resulting JDK bundles'
+inputs:
+  platform:
+    description: 'Platform name'
+    required: true
+  debug-suffix:
+    description: 'File name suffix denoting debug level, possibly empty'
+    required: false
+
+runs:
+  using: composite
+  steps:
+
+    - name: 'Determine bundle names'
+      id: bundles
+      run: |
+        # Rename bundles to consistent names
+        jdk_bundle_zip="$(ls build/*/bundles/jdk-*_bin${{ inputs.debug-suffix }}.zip 2> /dev/null || true)"
+        jdk_bundle_tar_gz="$(ls build/*/bundles/jdk-*_bin${{ inputs.debug-suffix }}.tar.gz 2> /dev/null || true)"
+        symbols_bundle="$(ls build/*/bundles/jdk-*_bin${{ inputs.debug-suffix }}-symbols.tar.gz 2> /dev/null || true)"
+        tests_bundle="$(ls build/*/bundles/jdk-*_bin-tests${{ inputs.debug-suffix }}.tar.gz 2> /dev/null || true)"
+
+        mkdir bundles
+
+        if [[ "$jdk_bundle_zip" != "" ]]; then
+          mv "$jdk_bundle_zip" "bundles/jdk-${{ inputs.platform }}${{ inputs.debug-suffix }}.zip"
+        fi
+        if [[ "$jdk_bundle_tar_gz" != "" ]]; then
+          mv "$jdk_bundle_tar_gz" "bundles/jdk-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz"
+        fi
+        if [[ "$symbols_bundle" != "" ]]; then
+          mv "$symbols_bundle" "bundles/symbols-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz"
+        fi
+        if [[ "$tests_bundle" != "" ]]; then
+          mv "$tests_bundle" "bundles/tests-${{ inputs.platform }}${{ inputs.debug-suffix }}.tar.gz"
+        fi
+
+        if [[ "$jdk_bundle_zip$jdk_bundle_tar_gz$symbols_bundle$tests_bundle" != "" ]]; then
+          echo 'bundles-found=true' >> $GITHUB_OUTPUT
+        else
+          echo 'bundles-found=false' >> $GITHUB_OUTPUT
+        fi
+      shell: bash
+
+    - name: 'Upload bundles artifact'
+      uses: actions/upload-artifact@v3
+      with:
+        name: bundles-${{ inputs.platform }}${{ inputs.debug-suffix }}
+        path: bundles
+        retention-days: 1
+      if: steps.bundles.outputs.bundles-found == 'true'

.github/scripts/gen-build-failure-report.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022, 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
@@ -24,34 +24,28 @@
 # questions.
 #
 
-. config.sh
+GITHUB_STEP_SUMMARY="$1"
+BUILD_DIR="$(ls -d build/*)"
 
-Log false "Building Vector API tests, $(date)\n"
-
-# For each type
-for type in byte short int long float double
-do
-  Type="$(tr '[:lower:]' '[:upper:]' <<< ${type:0:1})${type:1}"
-
-  # For each size
-  for bits in 64 128 256 512
-  do
-    vectorteststype=${typeprefix}${Type}${bits}VectorTests
-    # Compile
-    Log true "Compiling ${vectorteststype}... "
-    Log false "\n${JAVAC} -cp \"${VECTORTESTS_HOME_CP}$SEPARATOR${TESTNG_JAR}\" --add-modules=jdk.incubator.vector $vectorteststype.java 2>&1"
-    compilation=$(${JAVAC} -cp "${VECTORTESTS_HOME_CP}$SEPARATOR${TESTNG_JAR}" \
-                    --add-modules=jdk.incubator.vector $vectorteststype.java 2>&1)
-    if [[ $compilation  == *"error"* ]]; then
-      Log true "$compilation\n"
-      exit -1
-    else
-      Log false "$compilation\n"
-    fi
-    Log true "done\n"
-  done
-done
-
-rm -fr build
+# Send signal to the do-build action that we failed
+touch "$BUILD_DIR/build-failure"
 
+(
+  echo '### :boom: Build failure summary'
+  echo ''
+  echo 'The build failed. Here follows the failure summary from the build.'
+  echo '<details><summary><b>View build failure summary</b></summary>'
+  echo ''
+  echo '```'
+  if [[ -f "$BUILD_DIR/make-support/failure-summary.log" ]]; then
+    cat "$BUILD_DIR/make-support/failure-summary.log"
+  else
+    echo "Failure summary ($BUILD_DIR/make-support/failure-summary.log) not found"
+  fi
+  echo '```'
+  echo '</details>'
+  echo ''
 
+  echo ''
+  echo ':arrow_right: To see the entire test log, click the job in the list to the left. To download logs, see the `failure-logs` [artifact above](#artifacts).'
+) >> $GITHUB_STEP_SUMMARY

.github/scripts/gen-test-results.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+#
+# Copyright (c) 2022, 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.
+#
+
+GITHUB_STEP_SUMMARY="$1"
+
+test_suite_name=$(cat build/run-test-prebuilt/test-support/test-last-ids.txt)
+results_dir=build/run-test-prebuilt/test-results/$test_suite_name/text
+report_dir=build/run-test-prebuilt/test-support/$test_suite_name
+
+failures=$(sed -E -e 's/(.*)\.(java|sh)/\1/' -e '/^#/d' $results_dir/newfailures.txt 2> /dev/null || true)
+errors=$(sed -E -e 's/(.*)\.(java|sh)/\1/' -e '/^#/d' $results_dir/other_errors.txt 2> /dev/null || true)
+
+if [[ "$failures" = "" && "$errors" = "" ]]; then
+  # If we have nothing to report, exit this step now
+  exit 0
+fi
+
+echo "### Test output for failed tests" >> $GITHUB_STEP_SUMMARY
+for test in $failures $errors; do
+  anchor="$(echo "$test" | tr [A-Z/] [a-z_])"
+  base_path="$(echo "$test" | tr '#' '_')"
+  report_file="$report_dir/$base_path.jtr"
+  hs_err_files=$(ls $report_dir/$base_path/hs_err*.log 2> /dev/null || true)
+  echo "####  <a id="$anchor">$test"
+
+  echo '<details><summary>View test results</summary>'
+  echo ''
+  echo '```'
+  if [[ -f "$report_file" ]]; then
+    cat "$report_file"
+  else
+    echo "Error: Result file $report_file not found"
+  fi
+  echo '```'
+  echo '</details>'
+  echo ''
+
+  if [[ "$hs_err_files" != "" ]]; then
+    echo '<details><summary>View HotSpot error log</summary>'
+    echo ''
+    for hs_err in $hs_err_files; do
+      echo '```'
+      echo "$hs_err:"
+      echo ''
+      cat "$hs_err"
+      echo '```'
+    done
+
+    echo '</details>'
+    echo ''
+  fi
+
+done >> $GITHUB_STEP_SUMMARY
+
+# With many failures, the summary can easily exceed 1024 kB, the limit set by Github
+# Trim it down if so.
+summary_size=$(wc -c < $GITHUB_STEP_SUMMARY)
+if [[ $summary_size -gt 1000000 ]]; then
+  # Trim to below 1024 kB, and cut off after the last detail group
+  head -c 1000000 $GITHUB_STEP_SUMMARY | tac | sed -n -e '/<\/details>/,$ p' | tac > $GITHUB_STEP_SUMMARY.tmp
+  mv $GITHUB_STEP_SUMMARY.tmp $GITHUB_STEP_SUMMARY
+  (
+    echo ''
+    echo ':x: **WARNING: Summary is too large and has been truncated.**'
+    echo ''
+  )  >> $GITHUB_STEP_SUMMARY
+fi
+
+echo ':arrow_right: To see the entire test log, click the job in the list to the left.'  >> $GITHUB_STEP_SUMMARY

.github/scripts/gen-test-summary.sh

@@ -0,0 +1,70 @@
+#!/bin/bash
+#
+# Copyright (c) 2022, 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.
+#
+
+GITHUB_STEP_SUMMARY="$1"
+GITHUB_OUTPUT="$2"
+
+test_suite_name=$(cat build/run-test-prebuilt/test-support/test-last-ids.txt)
+results_dir=build/run-test-prebuilt/test-results/$test_suite_name/text
+
+if [[ ! -f build/run-test-prebuilt/make-support/exit-with-error ]]; then
+  # There were no failures, exit now
+  exit
+fi
+
+failures=$(sed -E -e 's/(.*)\.(java|sh)/\1/' -e '/^#/d' $results_dir/newfailures.txt 2> /dev/null || true)
+errors=$(sed -E -e 's/(.*)\.(java|sh)/\1/' -e '/^#/d' $results_dir/other_errors.txt 2> /dev/null || true)
+failure_count=$(echo $failures | wc -w || true)
+error_count=$(echo $errors | wc -w || true)
+
+if [[ "$failures" = "" && "$errors" = "" ]]; then
+  # We know something went wrong, but not what
+  echo 'error-message=Unspecified test suite failure. Please see log for job for details.' >> $GITHUB_OUTPUT
+  exit 0
+fi
+
+echo 'failure=true' >> $GITHUB_OUTPUT
+echo "error-message=Test run reported $failure_count test failure(s) and $error_count error(s). See summary for details." >> $GITHUB_OUTPUT
+
+echo '### :boom: Test failures summary' >> $GITHUB_STEP_SUMMARY
+
+if [[ "$failures" != "" ]]; then
+  echo '' >> $GITHUB_STEP_SUMMARY
+  echo 'These tests reported failure:' >> $GITHUB_STEP_SUMMARY
+  for test in $failures; do
+    anchor="$(echo "$test" | tr [A-Z/] [a-z_])"
+    echo "* [$test](#user-content-$anchor)"
+  done >> $GITHUB_STEP_SUMMARY
+fi
+
+if [[ "$errors" != "" ]]; then
+  echo '' >> $GITHUB_STEP_SUMMARY
+  echo 'These tests reported errors:'  >> $GITHUB_STEP_SUMMARY
+  for test in $errors; do
+    anchor="$(echo "$test" | tr [A-Z/] [a-z_])"
+    echo "* [$test](#user-content-$anchor)"
+  done >> $GITHUB_STEP_SUMMARY
+fi

.github/workflows/build-cross-compile.yml

@@ -0,0 +1,154 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Build (cross-compile)'
+
+on:
+  workflow_call:
+    inputs:
+      gcc-major-version:
+        required: false
+        type: string
+        default: '10'
+      apt-gcc-version:
+        required: false
+        type: string
+        default: '10.3.0-1ubuntu1~20.04'
+      apt-gcc-cross-suffix:
+        required: false
+        type: string
+        default: 'cross1'
+
+jobs:
+  build-cross-compile:
+    name: build
+    runs-on: ubuntu-20.04
+
+    strategy:
+      fail-fast: false
+      matrix:
+        target-cpu:
+          - aarch64
+          - arm
+          - s390x
+          - ppc64le
+        include:
+          - target-cpu: aarch64
+            debian-arch: arm64
+            gnu-arch: aarch64
+          - target-cpu: arm
+            debian-arch: armhf
+            gnu-arch: arm
+            gnu-abi: eabihf
+          - target-cpu: s390x
+            debian-arch: s390x
+            gnu-arch: s390x
+          - target-cpu: ppc64le
+            debian-arch: ppc64el
+            gnu-arch: powerpc64le
+
+    steps:
+      - name: 'Checkout the JDK source'
+        uses: actions/checkout@v3
+
+      - name: 'Get the BootJDK'
+        id: bootjdk
+        uses: ./.github/actions/get-bootjdk
+        with:
+          platform: linux-x64
+
+        # Use linux-x64 JDK bundle as build JDK
+      - name: 'Get build JDK'
+        id: buildjdk
+        uses: ./.github/actions/get-bundles
+        with:
+          platform: linux-x64
+
+        # Upgrading apt to solve libc6 installation bugs, see JDK-8260460.
+      - name: 'Install toolchain and dependencies'
+        run: |
+          # Install dependencies using apt-get
+          sudo apt-get update
+          sudo apt-get install --only-upgrade apt
+          sudo apt-get install \
+              gcc-${{ inputs.gcc-major-version }}=${{ inputs.apt-gcc-version }} \
+              g++-${{ inputs.gcc-major-version }}=${{ inputs.apt-gcc-version }} \
+              gcc-${{ inputs.gcc-major-version }}-${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}=${{ inputs.apt-gcc-version }}${{ inputs.apt-gcc-cross-suffix }} \
+              g++-${{ inputs.gcc-major-version }}-${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}=${{ inputs.apt-gcc-version }}${{ inputs.apt-gcc-cross-suffix }} \
+              libxrandr-dev libxtst-dev libcups2-dev libasound2-dev
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-${{ inputs.gcc-major-version }} 100 --slave /usr/bin/g++ g++ /usr/bin/g++-${{ inputs.gcc-major-version }}
+
+      - name: 'Check cache for sysroot'
+        id: get-cached-sysroot
+        uses: actions/cache@v3
+        with:
+          path: sysroot
+          key: sysroot-${{ matrix.debian-arch }}-${{ hashFiles('./.github/workflows/build-cross-compile.yml') }}
+
+      - name: 'Install sysroot dependencies'
+        run: sudo apt-get install debootstrap qemu-user-static
+        if: steps.get-cached-sysroot.outputs.cache-hit != 'true'
+
+      - name: 'Create sysroot'
+        run: >
+          sudo qemu-debootstrap
+          --arch=${{ matrix.debian-arch }}
+          --verbose
+          --include=fakeroot,symlinks,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype6-dev,libpng-dev
+          --resolve-deps
+          buster
+          sysroot
+          https://httpredir.debian.org/debian/
+        if: steps.get-cached-sysroot.outputs.cache-hit != 'true'
+
+      - name: 'Prepare sysroot'
+        run: |
+          # Prepare sysroot and remove unused files to minimize cache
+          sudo chroot sysroot symlinks -cr .
+          sudo chown ${USER} -R sysroot
+          rm -rf sysroot/{dev,proc,run,sys}
+        if: steps.get-cached-sysroot.outputs.cache-hit != 'true'
+
+      - name: 'Configure'
+        run: >
+          bash configure
+          --with-conf-name=linux-${{ matrix.target-cpu }}
+          --with-version-opt=${GITHUB_ACTOR}-${GITHUB_SHA}
+          --with-boot-jdk=${{ steps.bootjdk.outputs.path }}
+          --with-zlib=system
+          --enable-debug
+          --disable-precompiled-headers
+          --openjdk-target=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}
+          --with-sysroot=sysroot
+          --with-build-jdk=${{ steps.buildjdk.outputs.jdk-path }}
+          CC=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}-gcc-10
+          CXX=${{ matrix.gnu-arch }}-linux-gnu${{ matrix.gnu-abi}}-g++-10
+
+      - name: 'Build'
+        id: build
+        uses: ./.github/actions/do-build
+        with:
+          make-target: 'hotspot'
+          platform: linux-${{ matrix.target-cpu }}

.github/workflows/build-linux.yml

@@ -0,0 +1,132 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Build (linux)'
+
+on:
+  workflow_call:
+    inputs:
+      platform:
+        required: true
+        type: string
+      extra-conf-options:
+        required: false
+        type: string
+      make-target:
+        required: false
+        type: string
+        default: 'product-bundles test-bundles'
+      debug-levels:
+        required: false
+        type: string
+        default: '[ "debug", "release" ]'
+      apt-gcc-version:
+        required: true
+        type: string
+      apt-architecture:
+        required: false
+        type: string
+      apt-extra-packages:
+        required: false
+        type: string
+
+jobs:
+  build-linux:
+    name: build
+    runs-on: ubuntu-20.04
+
+    strategy:
+      fail-fast: false
+      matrix:
+        debug-level: ${{ fromJSON(inputs.debug-levels) }}
+        include:
+          - debug-level: debug
+            flags: --with-debug-level=fastdebug
+            suffix: -debug
+
+    steps:
+      - name: 'Checkout the JDK source'
+        uses: actions/checkout@v3
+
+      - name: 'Get the BootJDK'
+        id: bootjdk
+        uses: ./.github/actions/get-bootjdk
+        with:
+          platform: linux-x64
+
+      - name: 'Get JTReg'
+        id: jtreg
+        uses: ./.github/actions/get-jtreg
+
+      - name: 'Get GTest'
+        id: gtest
+        uses: ./.github/actions/get-gtest
+
+      - name: 'Set architecture'
+        id: arch
+        run: |
+          # Set a proper suffix for packages if using a different architecture
+          if [[ '${{ inputs.apt-architecture }}' != '' ]]; then
+            echo 'suffix=:${{ inputs.apt-architecture }}' >> $GITHUB_OUTPUT
+          fi
+
+      # Upgrading apt to solve libc6 installation bugs, see JDK-8260460.
+      - name: 'Install toolchain and dependencies'
+        run: |
+          # Install dependencies using apt-get
+          if [[ '${{ inputs.apt-architecture }}' != '' ]]; then
+            sudo dpkg --add-architecture ${{ inputs.apt-architecture }}
+          fi
+          sudo apt-get update
+          sudo apt-get install --only-upgrade apt
+          sudo apt-get install gcc-${{ inputs.apt-gcc-version }} g++-${{ inputs.apt-gcc-version }} libxrandr-dev${{ steps.arch.outputs.suffix }} libxtst-dev${{ steps.arch.outputs.suffix }} libcups2-dev${{ steps.arch.outputs.suffix }} libasound2-dev${{ steps.arch.outputs.suffix }} ${{ inputs.apt-extra-packages }}
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10
+
+      - name: 'Configure'
+        run: >
+          bash configure
+          --with-conf-name=${{ inputs.platform }}
+          ${{ matrix.flags }}
+          --with-version-opt=${GITHUB_ACTOR}-${GITHUB_SHA}
+          --with-boot-jdk=${{ steps.bootjdk.outputs.path }}
+          --with-jtreg=${{ steps.jtreg.outputs.path }}
+          --with-gtest=${{ steps.gtest.outputs.path }}
+          --enable-jtreg-failure-handler
+          --with-zlib=system
+          ${{ inputs.extra-conf-options }}
+
+      - name: 'Build'
+        id: build
+        uses: ./.github/actions/do-build
+        with:
+          make-target: '${{ inputs.make-target }}'
+          platform: ${{ inputs.platform }}
+          debug-suffix: '${{ matrix.suffix }}'
+
+      - name: 'Upload bundles'
+        uses: ./.github/actions/upload-bundles
+        with:
+          platform: ${{ inputs.platform }}
+          debug-suffix: '${{ matrix.suffix }}'

.github/workflows/build-macos.yml

@@ -0,0 +1,114 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Build (macos)'
+
+on:
+  workflow_call:
+    inputs:
+      platform:
+        required: true
+        type: string
+      extra-conf-options:
+        required: false
+        type: string
+      make-target:
+        required: false
+        type: string
+        default: 'product-bundles test-bundles'
+      debug-levels:
+        required: false
+        type: string
+        default: '[ "debug", "release" ]'
+      xcode-toolset-version:
+        required: true
+        type: string
+
+jobs:
+  build-macos:
+    name: build
+    runs-on: macos-11
+
+    strategy:
+      fail-fast: false
+      matrix:
+        debug-level: ${{ fromJSON(inputs.debug-levels) }}
+        include:
+          - debug-level: debug
+            flags: --with-debug-level=fastdebug
+            suffix: -debug
+
+    steps:
+      - name: 'Checkout the JDK source'
+        uses: actions/checkout@v3
+
+      - name: 'Get the BootJDK'
+        id: bootjdk
+        uses: ./.github/actions/get-bootjdk
+        with:
+          platform: macos-x64
+
+      - name: 'Get JTReg'
+        id: jtreg
+        uses: ./.github/actions/get-jtreg
+
+      - name: 'Get GTest'
+        id: gtest
+        uses: ./.github/actions/get-gtest
+
+      - name: 'Install toolchain and dependencies'
+        run: |
+          # Run Homebrew installation and xcode-select
+          brew install make
+          sudo xcode-select --switch /Applications/Xcode_${{ inputs.xcode-toolset-version }}.app/Contents/Developer
+          # This will make GNU make available as 'make' and not only as 'gmake'
+          echo '/usr/local/opt/make/libexec/gnubin' >> $GITHUB_PATH
+
+      - name: 'Configure'
+        run: >
+          bash configure
+          --with-conf-name=${{ inputs.platform }}
+          ${{ matrix.flags }}
+          --with-version-opt=${GITHUB_ACTOR}-${GITHUB_SHA}
+          --with-boot-jdk=${{ steps.bootjdk.outputs.path }}
+          --with-jtreg=${{ steps.jtreg.outputs.path }}
+          --with-gtest=${{ steps.gtest.outputs.path }}
+          --enable-jtreg-failure-handler
+          --with-zlib=system
+          ${{ inputs.extra-conf-options }}
+
+      - name: 'Build'
+        id: build
+        uses: ./.github/actions/do-build
+        with:
+          make-target: '${{ inputs.make-target }}'
+          platform: ${{ inputs.platform }}
+          debug-suffix: '${{ matrix.suffix }}'
+
+      - name: 'Upload bundles'
+        uses: ./.github/actions/upload-bundles
+        with:
+          platform: ${{ inputs.platform }}
+          debug-suffix: '${{ matrix.suffix }}'

.github/workflows/build-windows.yml

@@ -0,0 +1,131 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Build (windows)'
+
+on:
+  workflow_call:
+    inputs:
+      platform:
+        required: true
+        type: string
+      extra-conf-options:
+        required: false
+        type: string
+      make-target:
+        required: false
+        type: string
+        default: 'product-bundles test-bundles'
+      debug-levels:
+        required: false
+        type: string
+        default: '[ "debug", "release" ]'
+      msvc-toolset-version:
+        required: true
+        type: string
+      msvc-toolset-architecture:
+        required: true
+        type: string
+
+env:
+  # These are needed to make the MSYS2 bash work properly
+  MSYS2_PATH_TYPE: minimal
+  CHERE_INVOKING: 1
+
+jobs:
+  build-windows:
+    name: build
+    runs-on: windows-2019
+    defaults:
+      run:
+        shell: bash
+
+    strategy:
+      fail-fast: false
+      matrix:
+        debug-level: ${{ fromJSON(inputs.debug-levels) }}
+        include:
+          - debug-level: debug
+            flags: --with-debug-level=fastdebug
+            suffix: -debug
+
+    steps:
+      - name: 'Checkout the JDK source'
+        uses: actions/checkout@v3
+
+      - name: 'Get MSYS2'
+        uses: ./.github/actions/get-msys2
+
+      - name: 'Get the BootJDK'
+        id: bootjdk
+        uses: ./.github/actions/get-bootjdk
+        with:
+          platform: windows-x64
+
+      - name: 'Get JTReg'
+        id: jtreg
+        uses: ./.github/actions/get-jtreg
+
+      - name: 'Get GTest'
+        id: gtest
+        uses: ./.github/actions/get-gtest
+
+      - name: 'Install toolchain and dependencies'
+        run: |
+          # Run Visual Studio Installer
+          '/c/Program Files (x86)/Microsoft Visual Studio/Installer/vs_installer.exe' \
+            modify --quiet --installPath 'C:/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise' \
+            --add Microsoft.VisualStudio.Component.VC.${{ inputs.msvc-toolset-version }}.${{ inputs.msvc-toolset-architecture }}
+
+      - name: 'Configure'
+        run: >
+          bash configure
+          --with-conf-name=${{ inputs.platform }}
+          ${{ matrix.flags }}
+          --with-version-opt=${GITHUB_ACTOR}-${GITHUB_SHA}
+          --with-boot-jdk=${{ steps.bootjdk.outputs.path }}
+          --with-jtreg=${{ steps.jtreg.outputs.path }}
+          --with-gtest=${{ steps.gtest.outputs.path }}
+          --enable-jtreg-failure-handler
+          --with-msvc-toolset-version=${{ inputs.msvc-toolset-version }}
+          ${{ inputs.extra-conf-options }}
+        env:
+          # We need a minimal PATH on Windows
+          # Set PATH to "", so just GITHUB_PATH is included
+          PATH: ''
+
+      - name: 'Build'
+        id: build
+        uses: ./.github/actions/do-build
+        with:
+          make-target: '${{ inputs.make-target }}'
+          platform: ${{ inputs.platform }}
+          debug-suffix: '${{ matrix.suffix }}'
+
+      - name: 'Upload bundles'
+        uses: ./.github/actions/upload-bundles
+        with:
+          platform: ${{ inputs.platform }}
+          debug-suffix: '${{ matrix.suffix }}'

.github/workflows/main.yml

@@ -0,0 +1,331 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'OpenJDK GHA Sanity Checks'
+
+on:
+  push:
+    branches-ignore:
+      - master
+      - pr/*
+  workflow_dispatch:
+    inputs:
+      platforms:
+        description: 'Platform(s) to execute on (comma separated, e.g. "linux-x64, macos, aarch64")'
+        required: true
+        default: 'linux-x64, linux-x86, linux-x64-variants, linux-cross-compile, macos-x64, macos-aarch64, windows-x64, windows-aarch64'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+
+  ###
+  ### Determine platforms to include
+  ###
+
+  select:
+    name: 'Select platforms'
+    runs-on: ubuntu-20.04
+    outputs:
+      linux-x64: ${{ steps.include.outputs.linux-x64 }}
+      linux-x86: ${{ steps.include.outputs.linux-x86 }}
+      linux-x64-variants: ${{ steps.include.outputs.linux-x64-variants }}
+      linux-cross-compile: ${{ steps.include.outputs.linux-cross-compile }}
+      macos-x64: ${{ steps.include.outputs.macos-x64 }}
+      macos-aarch64: ${{ steps.include.outputs.macos-aarch64 }}
+      windows-x64: ${{ steps.include.outputs.windows-x64 }}
+      windows-aarch64: ${{ steps.include.outputs.windows-aarch64 }}
+
+    steps:
+        # This function must be inlined in main.yml, or we'd be forced to checkout the repo
+      - name: 'Check what jobs to run'
+        id: include
+        run: |
+          # Determine which platform jobs to run
+
+          # Returns 'true' if the input platform list matches any of the platform monikers given as argument,
+          # 'false' otherwise.
+          # arg $1: platform name or names to look for
+          function check_platform() {
+            if [[ '${{ !secrets.JDK_SUBMIT_FILTER || startsWith(github.ref, 'refs/heads/submit/') }}' == 'false' ]]; then
+              # If JDK_SUBMIT_FILTER is set, and this is not a "submit/" branch, don't run anything
+              echo 'false'
+              return
+            fi
+
+            if [[ $GITHUB_EVENT_NAME == workflow_dispatch ]]; then
+              input='${{ github.event.inputs.platforms }}'
+            elif [[ $GITHUB_EVENT_NAME == push ]]; then
+              input='${{ secrets.JDK_SUBMIT_PLATFORMS }}'
+            else
+              echo 'Internal error in GHA'
+              exit 1
+            fi
+
+            normalized_input="$(echo ,$input, | tr -d ' ')"
+            if [[ "$normalized_input" == ",," ]]; then
+              # For an empty input, assume all platforms should run
+              echo 'true'
+              return
+            else
+              # Check for all acceptable platform names
+              for part in $* ; do
+                if echo "$normalized_input" | grep -q -e ",$part," ; then
+                  echo 'true'
+                  return
+                fi
+              done
+            fi
+
+            echo 'false'
+          }
+
+          echo "linux-x64=$(check_platform linux-x64 linux x64)" >> $GITHUB_OUTPUT
+          echo "linux-x86=$(check_platform linux-x86 linux x86)" >> $GITHUB_OUTPUT
+          echo "linux-x64-variants=$(check_platform linux-x64-variants variants)" >> $GITHUB_OUTPUT
+          echo "linux-cross-compile=$(check_platform linux-cross-compile cross-compile)" >> $GITHUB_OUTPUT
+          echo "macos-x64=$(check_platform macos-x64 macos x64)" >> $GITHUB_OUTPUT
+          echo "macos-aarch64=$(check_platform macos-aarch64 macos aarch64)" >> $GITHUB_OUTPUT
+          echo "windows-x64=$(check_platform windows-x64 windows x64)" >> $GITHUB_OUTPUT
+          echo "windows-aarch64=$(check_platform windows-aarch64 windows aarch64)" >> $GITHUB_OUTPUT
+
+  ###
+  ### Build jobs
+  ###
+
+  build-linux-x64:
+    name: linux-x64
+    needs: select
+    uses: ./.github/workflows/build-linux.yml
+    with:
+      platform: linux-x64
+      apt-gcc-version: '10=10.3.0-1ubuntu1~20.04'
+    # The linux-x64 jdk bundle is used as buildjdk for the cross-compile job
+    if: needs.select.outputs.linux-x64 == 'true' || needs.select.outputs.linux-cross-compile == 'true'
+
+  build-linux-x86:
+    name: linux-x86
+    needs: select
+    uses: ./.github/workflows/build-linux.yml
+    with:
+      platform: linux-x86
+      apt-gcc-version: '10-multilib'
+      apt-architecture: 'i386'
+      # Some multilib libraries do not have proper inter-dependencies, so we have to
+      # install their dependencies manually.
+      apt-extra-packages: 'libfreetype6-dev:i386 libtiff-dev:i386 libcupsimage2-dev:i386'
+      extra-conf-options: '--with-target-bits=32'
+    if: needs.select.outputs.linux-x86 == 'true'
+
+  build-linux-x64-hs-nopch:
+    name: linux-x64-hs-nopch
+    needs: select
+    uses: ./.github/workflows/build-linux.yml
+    with:
+      platform: linux-x64
+      make-target: 'hotspot'
+      debug-levels: '[ "debug" ]'
+      apt-gcc-version: '10=10.3.0-1ubuntu1~20.04'
+      extra-conf-options: '--disable-precompiled-headers'
+    if: needs.select.outputs.linux-x64-variants == 'true'
+
+  build-linux-x64-hs-zero:
+    name: linux-x64-hs-zero
+    needs: select
+    uses: ./.github/workflows/build-linux.yml
+    with:
+      platform: linux-x64
+      make-target: 'hotspot'
+      debug-levels: '[ "debug" ]'
+      apt-gcc-version: '10=10.3.0-1ubuntu1~20.04'
+      extra-conf-options: '--with-jvm-variants=zero --disable-precompiled-headers'
+    if: needs.select.outputs.linux-x64-variants == 'true'
+
+  build-linux-x64-hs-minimal:
+    name: linux-x64-hs-minimal
+    needs: select
+    uses: ./.github/workflows/build-linux.yml
+    with:
+      platform: linux-x64
+      make-target: 'hotspot'
+      debug-levels: '[ "debug" ]'
+      apt-gcc-version: '10=10.3.0-1ubuntu1~20.04'
+      extra-conf-options: '--with-jvm-variants=minimal --disable-precompiled-headers'
+    if: needs.select.outputs.linux-x64-variants == 'true'
+
+  build-linux-x64-hs-optimized:
+    name: linux-x64-hs-optimized
+    needs: select
+    uses: ./.github/workflows/build-linux.yml
+    with:
+      platform: linux-x64
+      make-target: 'hotspot'
+      # Technically this is not the "debug" level, but we can't inject a new matrix state for just this job
+      debug-levels: '[ "debug" ]'
+      apt-gcc-version: '10=10.3.0-1ubuntu1~20.04'
+      extra-conf-options: '--with-debug-level=optimized --disable-precompiled-headers'
+    if: needs.select.outputs.linux-x64-variants == 'true'
+
+  build-linux-cross-compile:
+    name: linux-cross-compile
+    needs:
+      - select
+      - build-linux-x64
+    uses: ./.github/workflows/build-cross-compile.yml
+    if: needs.select.outputs.linux-cross-compile == 'true'
+
+  build-macos-x64:
+    name: macos-x64
+    needs: select
+    uses: ./.github/workflows/build-macos.yml
+    with:
+      platform: macos-x64
+      xcode-toolset-version: '11.7'
+    if: needs.select.outputs.macos-x64 == 'true'
+
+  build-macos-aarch64:
+    name: macos-aarch64
+    needs: select
+    uses: ./.github/workflows/build-macos.yml
+    with:
+      platform: macos-aarch64
+      xcode-toolset-version: '12.4'
+      extra-conf-options: '--openjdk-target=aarch64-apple-darwin'
+    if: needs.select.outputs.macos-aarch64 == 'true'
+
+  build-windows-x64:
+    name: windows-x64
+    needs: select
+    uses: ./.github/workflows/build-windows.yml
+    with:
+      platform: windows-x64
+      msvc-toolset-version: '14.25'
+      msvc-toolset-architecture: 'x86.x64'
+    if: needs.select.outputs.windows-x64 == 'true'
+
+  build-windows-aarch64:
+    name: windows-aarch64
+    needs: select
+    uses: ./.github/workflows/build-windows.yml
+    with:
+      platform: windows-aarch64
+      msvc-toolset-version: '14.29'
+      msvc-toolset-architecture: 'arm64'
+      make-target: 'hotspot'
+      extra-conf-options: '--openjdk-target=aarch64-unknown-cygwin'
+    if: needs.select.outputs.windows-aarch64 == 'true'
+
+  ###
+  ### Test jobs
+  ###
+
+  test-linux-x64:
+    name: linux-x64
+    needs:
+      - build-linux-x64
+    uses: ./.github/workflows/test.yml
+    with:
+      platform: linux-x64
+      bootjdk-platform: linux-x64
+      runs-on: ubuntu-20.04
+
+  test-linux-x86:
+    name: linux-x86
+    needs:
+      - build-linux-x86
+    uses: ./.github/workflows/test.yml
+    with:
+      platform: linux-x86
+      bootjdk-platform: linux-x64
+      runs-on: ubuntu-20.04
+
+  test-macos-x64:
+    name: macos-x64
+    needs:
+      - build-macos-x64
+    uses: ./.github/workflows/test.yml
+    with:
+      platform: macos-x64
+      bootjdk-platform: macos-x64
+      runs-on: macos-11
+
+  test-windows-x64:
+    name: windows-x64
+    needs:
+      - build-windows-x64
+    uses: ./.github/workflows/test.yml
+    with:
+      platform: windows-x64
+      bootjdk-platform: windows-x64
+      runs-on: windows-2019
+
+  # Remove bundles so they are not misconstrued as binary distributions from the JDK project
+  remove-bundles:
+    name: 'Remove bundle artifacts'
+    runs-on: ubuntu-20.04
+    if: always()
+    needs:
+      - build-linux-x64
+      - build-linux-x86
+      - build-linux-x64-hs-nopch
+      - build-linux-x64-hs-zero
+      - build-linux-x64-hs-minimal
+      - build-linux-x64-hs-optimized
+      - build-linux-cross-compile
+      - build-macos-x64
+      - build-macos-aarch64
+      - build-windows-x64
+      - build-windows-aarch64
+      - test-linux-x64
+      - test-linux-x86
+      - test-macos-x64
+      - test-windows-x64
+
+    steps:
+        # Hack to get hold of the api environment variables that are only defined for actions
+      - name: 'Get API configuration'
+        id: api
+        uses: actions/github-script@v6
+        with:
+          script: 'return { url: process.env["ACTIONS_RUNTIME_URL"], token: process.env["ACTIONS_RUNTIME_TOKEN"] }'
+
+      - name: 'Remove bundle artifacts'
+        run: |
+          # Find and remove all bundle artifacts
+          ALL_ARTIFACT_URLS="$(curl -s \
+              -H 'Accept: application/json;api-version=6.0-preview' \
+              -H 'Authorization: Bearer ${{ fromJson(steps.api.outputs.result).token }}' \
+              '${{ fromJson(steps.api.outputs.result).url }}_apis/pipelines/workflows/${{ github.run_id }}/artifacts?api-version=6.0-preview')"
+          BUNDLE_ARTIFACT_URLS="$(echo "$ALL_ARTIFACT_URLS" | jq -r -c '.value | map(select(.name|startswith("bundles-"))) | .[].url')"
+          for url in $BUNDLE_ARTIFACT_URLS; do
+            echo "Removing $url"
+            curl -s \
+                -H 'Accept: application/json;api-version=6.0-preview' \
+                -H 'Authorization: Bearer ${{ fromJson(steps.api.outputs.result).token }}' \
+                -X DELETE "$url" \
+            || echo "Failed to remove bundle"
+          done

.github/workflows/test.yml

@@ -0,0 +1,205 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+name: 'Run tests'
+
+on:
+  workflow_call:
+    inputs:
+      platform:
+        required: true
+        type: string
+      bootjdk-platform:
+        required: true
+        type: string
+      runs-on:
+        required: true
+        type: string
+
+env:
+  # These are needed to make the MSYS2 bash work properly
+  MSYS2_PATH_TYPE: minimal
+  CHERE_INVOKING: 1
+
+jobs:
+  test:
+    name: test
+    runs-on: ${{ inputs.runs-on }}
+    defaults:
+      run:
+        shell: bash
+
+    strategy:
+      fail-fast: false
+      matrix:
+        test-name:
+          - 'jdk/tier1 part 1'
+          - 'jdk/tier1 part 2'
+          - 'jdk/tier1 part 3'
+          - 'langtools/tier1'
+          - 'hs/tier1 common'
+          - 'hs/tier1 compiler'
+          - 'hs/tier1 gc'
+          - 'hs/tier1 runtime'
+          - 'hs/tier1 serviceability'
+
+        include:
+          - test-name: 'jdk/tier1 part 1'
+            test-suite: 'test/jdk/:tier1_part1'
+
+          - test-name: 'jdk/tier1 part 2'
+            test-suite: 'test/jdk/:tier1_part2'
+
+          - test-name: 'jdk/tier1 part 3'
+            test-suite: 'test/jdk/:tier1_part3'
+
+          - test-name: 'langtools/tier1'
+            test-suite: 'test/langtools/:tier1'
+
+          - test-name: 'hs/tier1 common'
+            test-suite: 'test/hotspot/jtreg/:tier1_common'
+            debug-suffix: -debug
+
+          - test-name: 'hs/tier1 compiler'
+            test-suite: 'test/hotspot/jtreg/:tier1_compiler'
+            debug-suffix: -debug
+
+          - test-name: 'hs/tier1 gc'
+            test-suite: 'test/hotspot/jtreg/:tier1_gc'
+            debug-suffix: -debug
+
+          - test-name: 'hs/tier1 runtime'
+            test-suite: 'test/hotspot/jtreg/:tier1_runtime'
+            debug-suffix: -debug
+
+          - test-name: 'hs/tier1 serviceability'
+            test-suite: 'test/hotspot/jtreg/:tier1_serviceability'
+            debug-suffix: -debug
+
+    steps:
+      - name: 'Checkout the JDK source'
+        uses: actions/checkout@v3
+
+      - name: 'Get MSYS2'
+        uses: ./.github/actions/get-msys2
+        if: runner.os == 'Windows'
+
+      - name: 'Get the BootJDK'
+        id: bootjdk
+        uses: ./.github/actions/get-bootjdk
+        with:
+          platform: ${{ inputs.bootjdk-platform }}
+
+      - name: 'Get JTReg'
+        id: jtreg
+        uses: ./.github/actions/get-jtreg
+
+      - name: 'Get bundles'
+        id: bundles
+        uses: ./.github/actions/get-bundles
+        with:
+          platform: ${{ inputs.platform }}
+          debug-suffix: ${{ matrix.debug-suffix }}
+
+      - name: 'Install dependencies'
+        run: |
+          # On macOS we need to install some dependencies for testing
+          brew install make
+          sudo xcode-select --switch /Applications/Xcode_11.7.app/Contents/Developer
+          # This will make GNU make available as 'make' and not only as 'gmake'
+          echo '/usr/local/opt/make/libexec/gnubin' >> $GITHUB_PATH
+        if: runner.os == 'macOS'
+
+      - name: 'Set PATH'
+        id: path
+        run: |
+          # We need a minimal PATH on Windows
+          # Set PATH to "", so just GITHUB_PATH is included
+          if [[ '${{ runner.os }}' == 'Windows' ]]; then
+            echo "value=" >> $GITHUB_OUTPUT
+          else
+            echo "value=$PATH" >> $GITHUB_OUTPUT
+          fi
+
+      - name: 'Run tests'
+        id: run-tests
+        run: >
+          make test-prebuilt
+          TEST='${{ matrix.test-suite }}'
+          BOOT_JDK=${{ steps.bootjdk.outputs.path }}
+          JT_HOME=${{ steps.jtreg.outputs.path }}
+          JDK_IMAGE_DIR=${{ steps.bundles.outputs.jdk-path }}
+          SYMBOLS_IMAGE_DIR=${{ steps.bundles.outputs.symbols-path }}
+          TEST_IMAGE_DIR=${{ steps.bundles.outputs.tests-path }}
+          JTREG='JAVA_OPTIONS=-XX:-CreateCoredumpOnCrash;VERBOSE=fail,error,time;KEYWORDS=!headful'
+          && bash ./.github/scripts/gen-test-summary.sh "$GITHUB_STEP_SUMMARY" "$GITHUB_OUTPUT"
+        env:
+          PATH: ${{ steps.path.outputs.value }}
+
+        # This is a separate step, since if the markdown from a step gets bigger than
+        # 1024 kB it is skipped, but then the short summary above is still generated
+      - name: 'Generate test report'
+        run: bash ./.github/scripts/gen-test-results.sh "$GITHUB_STEP_SUMMARY"
+        if: always()
+
+      - name: 'Package test results'
+        id: package
+        run: |
+          # Package test-results and relevant parts of test-support
+          mkdir results
+
+          if [[ -d build/run-test-prebuilt/test-results ]]; then
+            cd build/run-test-prebuilt/test-results/
+            zip -r -9 "$GITHUB_WORKSPACE/results/test-results.zip" .
+            cd $GITHUB_WORKSPACE
+          else
+            echo '::warning ::Missing test-results directory'
+          fi
+
+          if [[ -d build/run-test-prebuilt/test-support ]]; then
+            cd build/run-test-prebuilt/test-support/
+            zip -r -9 "$GITHUB_WORKSPACE/results/test-support.zip" . -i *.jtr -i */hs_err*.log -i */replay*.log
+            cd $GITHUB_WORKSPACE
+          else
+            echo '::warning ::Missing test-support directory'
+          fi
+
+          artifact_name="results-${{ inputs.platform }}-$(echo ${{ matrix.test-name }} | tr '/ ' '__')"
+          echo "artifact-name=$artifact_name" >> $GITHUB_OUTPUT
+        if: always()
+
+      - name: 'Upload test results'
+        uses: actions/upload-artifact@v3
+        with:
+          path: results
+          name: ${{ steps.package.outputs.artifact-name }}
+        if: always()
+
+        # This is the best way I found to abort the job with an error message
+      - name: 'Notify about test failures'
+        uses: actions/github-script@v6
+        with:
+          script: core.setFailed('${{ steps.run-tests.outputs.error-message }}')
+        if: steps.run-tests.outputs.failure == 'true'

.gitignore

@@ -16,3 +16,5 @@ NashornProfile.txt
 **/JTreport/**
 **/JTwork/**
 /src/utils/LogCompilation/target/
+/.project/
+/.settings/

.hgtags

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.jcheck/conf

@@ -1,6 +1,7 @@
 [general]
-project=jdk
+project=jdk-updates
 jbs=JDK
+version=17.0.6
 
 [checks]
 error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace,problemlists

doc/building.html

@@ -195,7 +195,7 @@
 <h3 id="windows">Windows</h3>
 <p>Windows XP is not a supported platform, but all newer Windows should be able to build the JDK.</p>
 <p>On Windows, it is important that you pay attention to the instructions in the <a href="#special-considerations">Special Considerations</a>.</p>
-<p>Windows is the only non-POSIX OS supported by the JDK, and as such, requires some extra care. A POSIX support layer is required to build on Windows. Currently, the only supported such layers are Cygwin and Windows Subsystem for Linux (WSL). (Msys is no longer supported due to a too old bash; msys2 would likely be possible to support in a future version but that would require effort to implement.)</p>
+<p>Windows is the only non-POSIX OS supported by the JDK, and as such, requires some extra care. A POSIX support layer is required to build on Windows. Currently, the only supported such layers are Cygwin, Windows Subsystem for Linux (WSL), and MSYS2. (MSYS is no longer supported due to an outdated bash; While OpenJDK can be built with MSYS2, support for it is still experimental, so build failures and unusual errors are not uncommon.)</p>
 <p>Internally in the build system, all paths are represented as Unix-style paths, e.g. <code>/cygdrive/c/git/jdk/Makefile</code> rather than <code>C:\git\jdk\Makefile</code>. This rule also applies to input to the build system, e.g. in arguments to <code>configure</code>. So, use <code>--with-msvcr-dll=/cygdrive/c/msvcr100.dll</code> rather than <code>--with-msvcr-dll=c:\msvcr100.dll</code>. For details on this conversion, see the section on <a href="#fixpath">Fixpath</a>.</p>
 <h4 id="cygwin">Cygwin</h4>
 <p>A functioning <a href="http://www.cygwin.com/">Cygwin</a> environment is required for building the JDK on Windows. If you have a 64-bit OS, we strongly recommend using the 64-bit version of Cygwin.</p>
@@ -278,7 +278,7 @@
 </tr>
 <tr class="odd">
 <td style="text-align: left;">Windows</td>
-<td style="text-align: left;">Microsoft Visual Studio 2019 update 16.7.2</td>
+<td style="text-align: left;">Microsoft Visual Studio 2022 update 17.1.0</td>
 </tr>
 </tbody>
 </table>
@@ -297,7 +297,7 @@
 <p>It is advisable to keep an older version of Xcode for building the JDK when updating Xcode. This <a href="http://iosdevelopertips.com/xcode/install-multiple-versions-of-xcode.html">blog page</a> has good suggestions on managing multiple Xcode versions. To use a specific version of Xcode, use <code>xcode-select -s</code> before running <code>configure</code>, or use <code>--with-toolchain-path</code> to point to the version of Xcode to use, e.g. <code>configure --with-toolchain-path=/Applications/Xcode8.app/Contents/Developer/usr/bin</code></p>
 <p>If you have recently (inadvertently) updated your OS and/or Xcode version, and the JDK can no longer be built, please see the section on <a href="#problems-with-the-build-environment">Problems with the Build Environment</a>, and <a href="#getting-help">Getting Help</a> to find out if there are any recent, non-merged patches available for this update.</p>
 <h3 id="microsoft-visual-studio">Microsoft Visual Studio</h3>
-<p>The minimum accepted version of Visual Studio is 2017. Older versions will not be accepted by <code>configure</code> and will not work. The maximum accepted version of Visual Studio is 2019.</p>
+<p>For aarch64 machines running Windows the minimum accepted version is Visual Studio 2019 (16.8 or higher). For all other platforms the minimum accepted version of Visual Studio is 2017. Older versions will not be accepted by <code>configure</code> and will not work. For all platforms the maximum accepted version of Visual Studio is 2019.</p>
 <p>If you have multiple versions of Visual Studio installed, <code>configure</code> will by default pick the latest. You can request a specific version to be used by setting <code>--with-toolchain-version</code>, e.g. <code>--with-toolchain-version=2017</code>.</p>
 <p>If you have Visual Studio installed but <code>configure</code> fails to detect it, it may be because of <a href="#spaces-in-path">spaces in path</a>.</p>
 <h3 id="ibm-xl-cc">IBM XL C/C++</h3>
@@ -506,7 +506,7 @@
 </ul>
 <h2 id="running-tests">Running Tests</h2>
 <p>Most of the JDK tests are using the <a href="http://openjdk.java.net/jtreg">JTReg</a> test framework. Make sure that your configuration knows where to find your installation of JTReg. If this is not picked up automatically, use the <code>--with-jtreg=&lt;path to jtreg home&gt;</code> option to point to the JTReg framework. Note that this option should point to the JTReg home, i.e. the top directory, containing <code>lib/jtreg.jar</code> etc.</p>
-<p>The <a href="https://wiki.openjdk.java.net/display/Adoption">Adoption Group</a> provides recent builds of jtreg <a href="https://ci.adoptopenjdk.net/view/Dependencies/job/jtreg/lastSuccessfulBuild/artifact">here</a>. Download the latest <code>.tar.gz</code> file, unpack it, and point <code>--with-jtreg</code> to the <code>jtreg</code> directory that you just unpacked.</p>
+<p>The <a href="https://wiki.openjdk.java.net/display/Adoption">Adoption Group</a> provides recent builds of jtreg <a href="https://ci.adoptopenjdk.net/view/Dependencies/job/dependency_pipeline/lastSuccessfulBuild/artifact/jtreg/">here</a>. Download the latest <code>.tar.gz</code> file, unpack it, and point <code>--with-jtreg</code> to the <code>jtreg</code> directory that you just unpacked.</p>
 <p>Building of Hotspot Gtest suite requires the source code of Google Test framework. The top directory, which contains both <code>googletest</code> and <code>googlemock</code> directories, should be specified via <code>--with-gtest</code>. The supported version of Google Test is 1.8.1, whose source code can be obtained:</p>
 <ul>
 <li>by downloading and unpacking the source bundle from <a href="https://github.com/google/googletest/releases/tag/release-1.8.1">here</a></li>

doc/building.md

@@ -179,10 +179,10 @@ On Windows, it is important that you pay attention to the instructions in the
 
 Windows is the only non-POSIX OS supported by the JDK, and as such, requires
 some extra care. A POSIX support layer is required to build on Windows.
-Currently, the only supported such layers are Cygwin and Windows Subsystem for
-Linux (WSL). (Msys is no longer supported due to a too old bash; msys2 would
-likely be possible to support in a future version but that would require effort
-to implement.)
+Currently, the only supported such layers are Cygwin, Windows Subsystem for
+Linux (WSL), and MSYS2. (MSYS is no longer supported due to an outdated bash;
+While OpenJDK can be built with MSYS2, support for it is still experimental, so
+build failures and unusual errors are not uncommon.)
 
 Internally in the build system, all paths are represented as Unix-style paths,
 e.g. `/cygdrive/c/git/jdk/Makefile` rather than `C:\git\jdk\Makefile`. This
@@ -323,7 +323,7 @@ issues.
  ------------------ -------------------------------------------------------
  Linux              gcc 10.2.0
  macOS              Apple Xcode 10.1 (using clang 10.0.0)
- Windows            Microsoft Visual Studio 2019 update 16.7.2
+ Windows            Microsoft Visual Studio 2022 update 17.1.0
 
 All compilers are expected to be able to compile to the C99 language standard,
 as some C99 features are used in the source code. Microsoft Visual Studio
@@ -848,7 +848,7 @@ containing `lib/jtreg.jar` etc.
 
 The [Adoption Group](https://wiki.openjdk.java.net/display/Adoption) provides
 recent builds of jtreg [here](
-https://ci.adoptopenjdk.net/view/Dependencies/job/jtreg/lastSuccessfulBuild/artifact).
+https://ci.adoptopenjdk.net/view/Dependencies/job/dependency_pipeline/lastSuccessfulBuild/artifact/jtreg/).
 Download the latest `.tar.gz` file, unpack it, and point `--with-jtreg` to the
 `jtreg` directory that you just unpacked.
 

doc/testing.html

@@ -27,6 +27,7 @@
 <li><a href="#configuration">Configuration</a></li>
 </ul></li>
 <li><a href="#test-selection">Test selection</a><ul>
+<li><a href="#common-test-groups">Common Test Groups</a></li>
 <li><a href="#jtreg">JTReg</a></li>
 <li><a href="#gtest">Gtest</a></li>
 <li><a href="#microbenchmarks">Microbenchmarks</a></li>
@@ -67,6 +68,19 @@ $ make exploded-test TEST=tier2</code></pre>
 <p>All functionality is available using the <code>test</code> make target. In this use case, the test or tests to be executed is controlled using the <code>TEST</code> variable. To speed up subsequent test runs with no source code changes, <code>test-only</code> can be used instead, which do not depend on the source and test image build.</p>
 <p>For some common top-level tests, direct make targets have been generated. This includes all JTReg test groups, the hotspot gtest, and custom tests (if present). This means that <code>make test-tier1</code> is equivalent to <code>make test TEST=&quot;tier1&quot;</code>, but the latter is more tab-completion friendly. For more complex test runs, the <code>test TEST=&quot;x&quot;</code> solution needs to be used.</p>
 <p>The test specifications given in <code>TEST</code> is parsed into fully qualified test descriptors, which clearly and unambigously show which tests will be run. As an example, <code>:tier1</code> will expand to <code>jtreg:$(TOPDIR)/test/hotspot/jtreg:tier1 jtreg:$(TOPDIR)/test/jdk:tier1 jtreg:$(TOPDIR)/test/langtools:tier1 jtreg:$(TOPDIR)/test/nashorn:tier1 jtreg:$(TOPDIR)/test/jaxp:tier1</code>. You can always submit a list of fully qualified test descriptors in the <code>TEST</code> variable if you want to shortcut the parser.</p>
+<h3 id="common-test-groups">Common Test Groups</h3>
+<p>Ideally, all tests are run for every change but this may not be practical due to the limited testing resources, the scope of the change, etc.</p>
+<p>The source tree currently defines a few common test groups in the relevant <code>TEST.groups</code> files. There are test groups that cover a specific component, for example <code>hotspot_gc</code>. It is a good idea to look into <code>TEST.groups</code> files to get a sense what tests are relevant to a particular JDK component.</p>
+<p>Component-specific tests may miss some unintended consequences of a change, so other tests should also be run. Again, it might be impractical to run all tests, and therefore <em>tiered</em> test groups exist. Tiered test groups are not component-specific, but rather cover the significant parts of the entire JDK.</p>
+<p>Multiple tiers allow balancing test coverage and testing costs. Lower test tiers are supposed to contain the simpler, quicker and more stable tests. Higher tiers are supposed to contain progressively more thorough, slower, and sometimes less stable tests, or the tests that require special configuration.</p>
+<p>Contributors are expected to run the tests for the areas that are changed, and the first N tiers they can afford to run, but at least tier1.</p>
+<p>A brief description of the tiered test groups:</p>
+<ul>
+<li><p><code>tier1</code>: This is the lowest test tier. Multiple developers run these tests every day. Because of the widespread use, the tests in <code>tier1</code> are carefully selected and optimized to run fast, and to run in the most stable manner. The test failures in <code>tier1</code> are usually followed up on quickly, either with fixes, or adding relevant tests to problem list. GitHub Actions workflows, if enabled, run <code>tier1</code> tests.</p></li>
+<li><p><code>tier2</code>: This test group covers even more ground. These contain, among other things, tests that either run for too long to be at <code>tier1</code>, or may require special configuration, or tests that are less stable, or cover the broader range of non-core JVM and JDK features/components (for example, XML).</p></li>
+<li><p><code>tier3</code>: This test group includes more stressful tests, the tests for corner cases not covered by previous tiers, plus the tests that require GUIs. As such, this suite should either be run with low concurrency (<code>TEST_JOBS=1</code>), or without headful tests (<code>JTREG_KEYWORDS=\!headful</code>), or both.</p></li>
+<li><p><code>tier4</code>: This test group includes every other test not covered by previous tiers. It includes, for example, <code>vmTestbase</code> suites for Hotspot, which run for many hours even on large machines. It also runs GUI tests, so the same <code>TEST_JOBS</code> and <code>JTREG_KEYWORDS</code> caveats apply.</p></li>
+</ul>
 <h3 id="jtreg">JTReg</h3>
 <p>JTReg tests can be selected either by picking a JTReg test group, or a selection of files or directories containing JTReg tests.</p>
 <p>JTReg test groups can be specified either without a test root, e.g. <code>:tier1</code> (or <code>tier1</code>, the initial colon is optional), or with, e.g. <code>hotspot:tier1</code>, <code>test/jdk:jdk_util</code> or <code>$(TOPDIR)/test/hotspot/jtreg:hotspot_all</code>. The test root can be specified either as an absolute path, or a path relative to the JDK top directory, or the <code>test</code> directory. For simplicity, the hotspot JTReg test root, which really is <code>hotspot/jtreg</code> can be abbreviated as just <code>hotspot</code>.</p>
@@ -179,7 +193,9 @@ TEST FAILURE</code></pre>
 <h4 id="aot_modules-1">AOT_MODULES</h4>
 <p>Generate AOT modules before testing for the specified module, or set of modules. If multiple modules are specified, they should be separated by space (or, to help avoid quoting issues, the special value <code>%20</code>).</p>
 <h4 id="retry_count">RETRY_COUNT</h4>
-<p>Retry failed tests up to a set number of times. Defaults to 0.</p>
+<p>Retry failed tests up to a set number of times, until they pass. This allows to pass the tests with intermittent failures. Defaults to 0.</p>
+<h4 id="repeat_count">REPEAT_COUNT</h4>
+<p>Repeat the tests up to a set number of times, stopping at first failure. This helps to reproduce intermittent test failures. Defaults to 0.</p>
 <h3 id="gtest-keywords">Gtest keywords</h3>
 <h4 id="repeat">REPEAT</h4>
 <p>The number of times to repeat the tests (<code>--gtest_repeat</code>).</p>

doc/testing.md

@@ -64,6 +64,52 @@ jtreg:$(TOPDIR)/test/nashorn:tier1 jtreg:$(TOPDIR)/test/jaxp:tier1`. You can
 always submit a list of fully qualified test descriptors in the `TEST` variable
 if you want to shortcut the parser.
 
+### Common Test Groups
+
+Ideally, all tests are run for every change but this may not be practical due to the limited
+testing resources, the scope of the change, etc.
+
+The source tree currently defines a few common test groups in the relevant `TEST.groups`
+files. There are test groups that cover a specific component, for example `hotspot_gc`.
+It is a good idea to look into `TEST.groups` files to get a sense what tests are relevant
+to a particular JDK component.
+
+Component-specific tests may miss some unintended consequences of a change, so other
+tests should also be run. Again, it might be impractical to run all tests, and therefore
+_tiered_ test groups exist. Tiered test groups are not component-specific, but rather cover
+the significant parts of the entire JDK.
+
+Multiple tiers allow balancing test coverage and testing costs. Lower test tiers are supposed to
+contain the simpler, quicker and more stable tests. Higher tiers are supposed to contain
+progressively more thorough, slower, and sometimes less stable tests, or the tests that require
+special configuration.
+
+Contributors are expected to run the tests for the areas that are changed, and the first N tiers
+they can afford to run, but at least tier1.
+
+A brief description of the tiered test groups:
+
+- `tier1`: This is the lowest test tier. Multiple developers run these tests every day.
+Because of the widespread use, the tests in `tier1` are carefully selected and optimized to run
+fast, and to run in the most stable manner. The test failures in `tier1` are usually followed up
+on quickly, either with fixes, or adding relevant tests to problem list. GitHub Actions workflows,
+if enabled, run `tier1` tests.
+
+- `tier2`: This test group covers even more ground. These contain, among other things,
+tests that either run for too long to be at `tier1`, or may require special configuration,
+or tests that are less stable, or cover the broader range of non-core JVM and JDK features/components
+(for example, XML).
+
+- `tier3`: This test group includes more stressful tests, the tests for corner cases
+not covered by previous tiers, plus the tests that require GUIs. As such, this suite
+should either be run with low concurrency (`TEST_JOBS=1`), or without headful tests
+(`JTREG_KEYWORDS=\!headful`), or both.
+
+- `tier4`: This test group includes every other test not covered by previous tiers. It includes,
+for example, `vmTestbase` suites for Hotspot, which run for many hours even on large
+machines. It also runs GUI tests, so the same `TEST_JOBS` and `JTREG_KEYWORDS` caveats
+apply.
+
 ### JTReg
 
 JTReg tests can be selected either by picking a JTReg test group, or a selection
@@ -373,7 +419,15 @@ modules. If multiple modules are specified, they should be separated by space
 
 #### RETRY_COUNT
 
-Retry failed tests up to a set number of times. Defaults to 0.
+Retry failed tests up to a set number of times, until they pass.
+This allows to pass the tests with intermittent failures.
+Defaults to 0.
+
+#### REPEAT_COUNT
+
+Repeat the tests up to a set number of times, stopping at first failure.
+This helps to reproduce intermittent test failures.
+Defaults to 0.
 
 ### Gtest keywords
 

make/CreateJmods.gmk

@@ -221,6 +221,13 @@ else
   JMOD_FLAGS += --exclude '**{_the.*,_*.marker*,*.diz,*.debuginfo,*.dSYM/**,*.dSYM}'
 endif
 
+# For reproducible builds specify the jmod --date using SOURCE_DATE in ISO-8601
+ifeq ($(ENABLE_REPRODUCIBLE_BUILD), true)
+  JMOD_SOURCE_DATE := --date $(SOURCE_DATE_ISO_8601)
+else
+  JMOD_SOURCE_DATE :=
+endif
+
 # Create jmods in the support dir and then move them into place to keep the
 # module path in $(IMAGES_OUTPUTDIR)/jmods valid at all times.
 $(eval $(call SetupExecute, create_$(JMOD_FILE), \
@@ -232,6 +239,7 @@ $(eval $(call SetupExecute, create_$(JMOD_FILE), \
     COMMAND := $(JMOD) create --module-version $(VERSION_SHORT) \
         --target-platform '$(OPENJDK_MODULE_TARGET_PLATFORM)' \
         --module-path $(JMODS_DIR) $(JMOD_FLAGS) \
+        $(JMOD_SOURCE_DATE) \
         $(JMODS_SUPPORT_DIR)/$(JMOD_FILE), \
     POST_COMMAND := $(MV) $(JMODS_SUPPORT_DIR)/$(JMOD_FILE) $(JMODS_DIR)/$(JMOD_FILE), \
 ))

make/InitSupport.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
@@ -313,6 +313,15 @@ else # $(HAS_SPEC)=true
       SOURCE_DATE := $$(shell $$(DATE) +"%s")
     endif
     export SOURCE_DATE_EPOCH := $$(SOURCE_DATE)
+    ifeq ($$(IS_GNU_DATE), yes)
+      export SOURCE_DATE_ISO_8601 := $$(shell $$(DATE) --utc \
+                                                       --date="@$$(SOURCE_DATE_EPOCH)" \
+                                                       +"%Y-%m-%dT%H:%M:%SZ" 2> /dev/null)
+    else
+      export SOURCE_DATE_ISO_8601 := $$(shell $$(DATE) -u \
+                                                       -j -f "%s" "$$(SOURCE_DATE_EPOCH)" \
+                                                       +"%Y-%m-%dT%H:%M:%SZ" 2> /dev/null)
+    endif
   endef
 
   # Parse COMPARE_BUILD into COMPARE_BUILD_*

make/Main.gmk

@@ -324,7 +324,7 @@ $(eval $(call SetupTarget, vscode-project-ccls, \
 # aren't built until after libjava and libjvm are available to link to.
 $(eval $(call SetupTarget, demos-jdk, \
     MAKEFILE := CompileDemos, \
-    DEPS := java.base-libs exploded-image, \
+    DEPS := java.base-libs exploded-image buildtools-jdk, \
 ))
 
 $(eval $(call SetupTarget, test-image-demos-jdk, \
@@ -383,12 +383,12 @@ bootcycle-images:
 
 $(eval $(call SetupTarget, zip-security, \
     MAKEFILE := ZipSecurity, \
-    DEPS := java.base-java java.security.jgss-java java.security.jgss-libs, \
+    DEPS := buildtools-jdk java.base-java java.security.jgss-java java.security.jgss-libs, \
 ))
 
 $(eval $(call SetupTarget, zip-source, \
     MAKEFILE := ZipSource, \
-    DEPS := gensrc, \
+    DEPS := buildtools-jdk gensrc, \
 ))
 
 $(eval $(call SetupTarget, jrtfs-jar, \
@@ -508,13 +508,13 @@ $(eval $(call SetupTarget, docs-jdk-index, \
 $(eval $(call SetupTarget, docs-zip, \
     MAKEFILE := Docs, \
     TARGET := docs-zip, \
-    DEPS :=  docs-jdk, \
+    DEPS :=  docs-jdk buildtools-jdk, \
 ))
 
 $(eval $(call SetupTarget, docs-specs-zip, \
     MAKEFILE := Docs, \
     TARGET := docs-specs-zip, \
-    DEPS := docs-jdk-specs, \
+    DEPS := docs-jdk-specs buildtools-jdk, \
 ))
 
 $(eval $(call SetupTarget, update-build-docs, \

make/RunTests.gmk

@@ -200,7 +200,7 @@ $(eval $(call SetTestOpt,FAILURE_HANDLER_TIMEOUT,JTREG))
 $(eval $(call ParseKeywordVariable, JTREG, \
     SINGLE_KEYWORDS := JOBS TIMEOUT_FACTOR FAILURE_HANDLER_TIMEOUT \
         TEST_MODE ASSERT VERBOSE RETAIN MAX_MEM RUN_PROBLEM_LISTS \
-        RETRY_COUNT MAX_OUTPUT, \
+        RETRY_COUNT REPEAT_COUNT MAX_OUTPUT, \
     STRING_KEYWORDS := OPTIONS JAVA_OPTIONS VM_OPTIONS KEYWORDS \
         EXTRA_PROBLEM_LISTS LAUNCHER_OPTIONS, \
 ))
@@ -744,6 +744,15 @@ define SetupRunJtregTestBody
   JTREG_RETAIN ?= fail,error
   JTREG_RUN_PROBLEM_LISTS ?= false
   JTREG_RETRY_COUNT ?= 0
+  JTREG_REPEAT_COUNT ?= 0
+
+  ifneq ($$(JTREG_RETRY_COUNT), 0)
+    ifneq ($$(JTREG_REPEAT_COUNT), 0)
+      $$(info Error: Cannot use both JTREG_RETRY_COUNT and JTREG_REPEAT_COUNT together.)
+      $$(info Please choose one or the other.)
+      $$(error Cannot continue)
+    endif
+  endif
 
   ifneq ($$(JTREG_LAUNCHER_OPTIONS), )
     $1_JTREG_LAUNCHER_OPTIONS += $$(JTREG_LAUNCHER_OPTIONS)
@@ -866,6 +875,18 @@ define SetupRunJtregTestBody
         done
   endif
 
+  ifneq ($$(JTREG_REPEAT_COUNT), 0)
+    $1_COMMAND_LINE := \
+        for i in {1..$$(JTREG_REPEAT_COUNT)}; do \
+          $$(PRINTF) "\nRepeating Jtreg run: $$$$i out of $$(JTREG_REPEAT_COUNT)\n"; \
+          $$($1_COMMAND_LINE); \
+          if [ "`$$(CAT) $$($1_EXITCODE)`" != "0" ]; then \
+            $$(PRINTF) "\nFailures detected, no more repeats.\n"; \
+            break; \
+          fi; \
+        done
+  endif
+
   run-test-$1: pre-run-test clean-workdir-$1
 	$$(call LogWarn)
 	$$(call LogWarn, Running test '$$($1_TEST)')

make/TestImage.gmk

@@ -35,8 +35,8 @@ BUILD_INFO_PROPERTIES := $(TEST_IMAGE_DIR)/build-info.properties
 $(BUILD_INFO_PROPERTIES):
 	$(call MakeTargetDir)
 	$(ECHO) "# Build info properties for JDK tests" > $@
-	$(ECHO) "build.workspace.root=$(call FixPath, $(WORKSPACE_ROOT))" >> $@
-	$(ECHO) "build.output.root=$(call FixPath, $(OUTPUTDIR))" >> $@
+	$(ECHO) 'build.workspace.root=$(call FixPath, $(WORKSPACE_ROOT))' >> $@
+	$(ECHO) 'build.output.root=$(call FixPath, $(OUTPUTDIR))' >> $@
 
 README := $(TEST_IMAGE_DIR)/Readme.txt
 

make/ToolsJdk.gmk

@@ -80,6 +80,8 @@ TOOL_GENERATECACERTS = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_class
 TOOL_GENERATEEMOJIDATA = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
     build.tools.generateemojidata.GenerateEmojiData
 
+TOOL_MAKEZIPREPRODUCIBLE = $(JAVA_SMALL) -cp $(BUILDTOOLS_OUTPUTDIR)/jdk_tools_classes \
+    build.tools.makezipreproducible.MakeZipReproducible
 
 # TODO: There are references to the jdwpgen.jar in jdk/make/netbeans/jdwpgen/build.xml
 # and nbproject/project.properties in the same dir. Needs to be looked at.

make/autoconf/basic.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
@@ -94,11 +94,6 @@ AC_DEFUN_ONCE([BASIC_SETUP_PATHS],
 
   # Locate the directory of this script.
   AUTOCONF_DIR=$TOPDIR/make/autoconf
-
-  # Setup username (for use in adhoc version strings etc)
-  # Outer [ ] to quote m4.
-  [ USERNAME=`$ECHO "$USER" | $TR -d -c '[a-z][A-Z][0-9]'` ]
-  AC_SUBST(USERNAME)
 ])
 
 ###############################################################################

make/autoconf/basic_tools.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -270,6 +270,8 @@ AC_DEFUN([BASIC_CHECK_TAR],
     TAR_TYPE="bsd"
   elif test "x$($TAR -v | $GREP "bsdtar")" != "x"; then
     TAR_TYPE="bsd"
+  elif test "x$($TAR --version | $GREP "busybox")" != "x"; then
+    TAR_TYPE="busybox"
   elif test "x$OPENJDK_BUILD_OS" = "xaix"; then
     TAR_TYPE="aix"
   fi
@@ -281,9 +283,12 @@ AC_DEFUN([BASIC_CHECK_TAR],
     TAR_SUPPORTS_TRANSFORM="true"
   elif test "x$TAR_TYPE" = "aix"; then
     # -L InputList of aix tar: name of file listing the files and directories
-    # that need to be   archived or extracted
+    # that need to be archived or extracted
     TAR_INCLUDE_PARAM="L"
     TAR_SUPPORTS_TRANSFORM="false"
+  elif test "x$TAR_TYPE" = "xbusybox"; then
+    TAR_INCLUDE_PARAM="T"
+    TAR_SUPPORTS_TRANSFORM="false"
   else
     TAR_INCLUDE_PARAM="I"
     TAR_SUPPORTS_TRANSFORM="false"
@@ -356,6 +361,18 @@ AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
   fi
   AC_SUBST(IS_GNU_TIME)
 
+  # Check if it's a GNU date compatible version
+  AC_MSG_CHECKING([if date is a GNU compatible version])
+  check_date=`$DATE --version 2>&1 | $GREP "GNU\|BusyBox"`
+  if test "x$check_date" != x; then
+    AC_MSG_RESULT([yes])
+    IS_GNU_DATE=yes
+  else
+    AC_MSG_RESULT([no])
+    IS_GNU_DATE=no
+  fi
+  AC_SUBST(IS_GNU_DATE)
+
   if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
     UTIL_REQUIRE_PROGS(DSYMUTIL, dsymutil)
     UTIL_REQUIRE_PROGS(MIG, mig)

make/autoconf/boot-jdk.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -126,16 +126,18 @@ AC_DEFUN([BOOTJDK_DO_CHECK],
 AC_DEFUN([BOOTJDK_CHECK_ARGUMENTS],
 [
   if test "x$with_boot_jdk" != x; then
-    if test -d "$with_boot_jdk"; then
-      BOOT_JDK=$with_boot_jdk
+    BOOT_JDK_ARG="$with_boot_jdk"
+    UTIL_FIXUP_PATH(BOOT_JDK_ARG)
+    if test -d "$BOOT_JDK_ARG"; then
+      BOOT_JDK=$BOOT_JDK_ARG
       BOOT_JDK_FOUND=maybe
-    elif test -f "$with_boot_jdk"; then
-      case "$with_boot_jdk" in
+    elif test -f "$BOOT_JDK_ARG"; then
+      case "$BOOT_JDK_ARG" in
         *.tar.gz )
             BOOT_JDK_SUPPORT_DIR=$CONFIGURESUPPORT_OUTPUTDIR/boot-jdk
             $RM -rf $BOOT_JDK_SUPPORT_DIR
             $MKDIR -p $BOOT_JDK_SUPPORT_DIR
-            $GUNZIP -c $with_boot_jdk | $TAR xf - -C $BOOT_JDK_SUPPORT_DIR
+            $GUNZIP -c $BOOT_JDK_ARG | $TAR xf - -C $BOOT_JDK_SUPPORT_DIR
 
             # Try to find javac to determine BOOT_JDK path
             BOOT_JDK_JAVAC_PATH=`$FIND $BOOT_JDK_SUPPORT_DIR | $GREP "/bin/javac"`
@@ -357,6 +359,16 @@ AC_DEFUN_ONCE([BOOTJDK_SETUP_BOOT_JDK],
 
   # Finally, set some other options...
 
+  # Determine if the boot jdk jar supports the --date option
+  if $JAR --help 2>&1 | $GREP -q "\-\-date=TIMESTAMP"; then
+    BOOT_JDK_JAR_SUPPORTS_DATE=true
+  else
+    BOOT_JDK_JAR_SUPPORTS_DATE=false
+  fi
+  AC_MSG_CHECKING([if Boot JDK jar supports --date=TIMESTAMP])
+  AC_MSG_RESULT([$BOOT_JDK_JAR_SUPPORTS_DATE])
+  AC_SUBST(BOOT_JDK_JAR_SUPPORTS_DATE)
+
   # When compiling code to be executed by the Boot JDK, force compatibility with the
   # oldest supported bootjdk.
   OLDEST_BOOT_JDK=`$ECHO $DEFAULT_ACCEPTABLE_BOOT_VERSIONS \

make/autoconf/build-aux/config.guess

@@ -102,6 +102,15 @@ if [ "x$OUT" = x ]; then
   fi
 fi
 
+# Test and fix LoongArch64.
+if [ "x$OUT" = x ]; then
+  if [ `uname -s` = Linux ]; then
+    if [ `uname -m` = loongarch64 ]; then
+      OUT=loongarch64-unknown-linux-gnu
+    fi
+  fi
+fi
+
 # Test and fix cpu on macos-aarch64, uname -p reports arm, buildsys expects aarch64
 echo $OUT | grep arm-apple-darwin > /dev/null 2> /dev/null
 if test $? != 0; then

make/autoconf/flags-cflags.m4

@@ -95,11 +95,39 @@ AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS],
   # info flags for toolchains unless we know they work.
   # See JDK-8207057.
   ASFLAGS_DEBUG_SYMBOLS=""
+
+  # Debug prefix mapping if supported by compiler
+  DEBUG_PREFIX_CFLAGS=
+
   # Debug symbols
   if test "x$TOOLCHAIN_TYPE" = xgcc; then
+    if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
+      # Check if compiler supports -fdebug-prefix-map. If so, use that to make
+      # the debug symbol paths resolve to paths relative to the workspace root.
+      workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
+      DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}="
+      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}],
+        IF_FALSE: [
+            DEBUG_PREFIX_CFLAGS=
+        ]
+      )
+    fi
+
     CFLAGS_DEBUG_SYMBOLS="-g"
     ASFLAGS_DEBUG_SYMBOLS="-g"
   elif test "x$TOOLCHAIN_TYPE" = xclang; then
+    if test "x$ALLOW_ABSOLUTE_PATHS_IN_OUTPUT" = "xfalse"; then
+      # Check if compiler supports -fdebug-prefix-map. If so, use that to make
+      # the debug symbol paths resolve to paths relative to the workspace root.
+      workspace_root_trailing_slash="${WORKSPACE_ROOT%/}/"
+      DEBUG_PREFIX_CFLAGS="-fdebug-prefix-map=${workspace_root_trailing_slash}="
+      FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${DEBUG_PREFIX_CFLAGS}],
+        IF_FALSE: [
+            DEBUG_PREFIX_CFLAGS=
+        ]
+      )
+    fi
+
     CFLAGS_DEBUG_SYMBOLS="-g"
     ASFLAGS_DEBUG_SYMBOLS="-g"
   elif test "x$TOOLCHAIN_TYPE" = xxlc; then
@@ -108,6 +136,11 @@ AC_DEFUN([FLAGS_SETUP_DEBUG_SYMBOLS],
     CFLAGS_DEBUG_SYMBOLS="-Z7"
   fi
 
+  if test "x$DEBUG_PREFIX_CFLAGS" != x; then
+    CFLAGS_DEBUG_SYMBOLS="$CFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS"
+    ASFLAGS_DEBUG_SYMBOLS="$ASFLAGS_DEBUG_SYMBOLS $DEBUG_PREFIX_CFLAGS"
+  fi
+
   AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
   AC_SUBST(ASFLAGS_DEBUG_SYMBOLS)
 ])
@@ -159,6 +192,7 @@ AC_DEFUN([FLAGS_SETUP_WARNINGS],
 
     clang)
       DISABLE_WARNING_PREFIX="-Wno-"
+      BUILD_CC_DISABLE_WARNING_PREFIX="-Wno-"
       CFLAGS_WARNINGS_ARE_ERRORS="-Werror"
 
       # Additional warnings that are not activated by -Wall and -Wextra
@@ -436,9 +470,11 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_HELPER],
     ALWAYS_DEFINES_JVM="-D_REENTRANT"
     ALWAYS_DEFINES_JDK="-D_GNU_SOURCE -D_REENTRANT -D_LARGEFILE64_SOURCE -DSTDC"
   elif test "x$TOOLCHAIN_TYPE" = xmicrosoft; then
-    ALWAYS_DEFINES_JDK="-DWIN32_LEAN_AND_MEAN -D_CRT_SECURE_NO_DEPRECATE \
+    # Access APIs for Windows 8 and above
+    # see https://docs.microsoft.com/en-us/cpp/porting/modifying-winver-and-win32-winnt?view=msvc-170
+    ALWAYS_DEFINES_JDK="-DWIN32_LEAN_AND_MEAN -D_WIN32_WINNT=0x0602 -D_CRT_SECURE_NO_DEPRECATE \
         -D_CRT_NONSTDC_NO_DEPRECATE -DWIN32 -DIAL"
-    ALWAYS_DEFINES_JVM="-DNOMINMAX -DWIN32_LEAN_AND_MEAN"
+    ALWAYS_DEFINES_JVM="-DNOMINMAX -DWIN32_LEAN_AND_MEAN -D_WIN32_WINNT=0x0602"
   fi
 
   ###############################################################################
@@ -782,10 +818,8 @@ AC_DEFUN([FLAGS_SETUP_CFLAGS_CPU_DEP],
         test "x$ENABLE_REPRODUCIBLE_BUILD" = xtrue; then
       # There is a known issue with the pathmap if the mapping is made to the
       # empty string. Add a minimal string "s" as prefix to work around this.
-      workspace_root_win=`$FIXPATH_BASE print "${WORKSPACE_ROOT%/}"`
       # PATHMAP_FLAGS is also added to LDFLAGS in flags-ldflags.m4.
-      PATHMAP_FLAGS="-pathmap:${workspace_root_win//\//\\\\}=s \
-          -pathmap:${workspace_root_win}=s"
+      PATHMAP_FLAGS="-pathmap:${WORKSPACE_ROOT}=s"
       FILE_MACRO_CFLAGS="$PATHMAP_FLAGS"
       FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${FILE_MACRO_CFLAGS}],
           PREFIX: $3,

make/autoconf/flags-other.m4

@@ -89,11 +89,11 @@ AC_DEFUN([FLAGS_SETUP_ASFLAGS],
 
     # Fix linker warning.
     # Code taken from make/autoconf/flags-cflags.m4 and adapted.
-    JVM_BASIC_ASFLAGS+="-DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \
+    JVM_BASIC_ASFLAGS+=" -DMAC_OS_X_VERSION_MIN_REQUIRED=$MACOSX_VERSION_MIN_NODOTS \
         -mmacosx-version-min=$MACOSX_VERSION_MIN"
 
     if test -n "$MACOSX_VERSION_MAX"; then
-        JVM_BASIC_ASFLAGS+="$OS_CFLAGS \
+        JVM_BASIC_ASFLAGS+=" $OS_CFLAGS \
             -DMAC_OS_X_VERSION_MAX_ALLOWED=$MACOSX_VERSION_MAX_NODOTS"
     fi
   fi

make/autoconf/help.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -25,7 +25,7 @@
 
 AC_DEFUN_ONCE([HELP_SETUP_DEPENDENCY_HELP],
 [
-  UTIL_LOOKUP_PROGS(PKGHANDLER, zypper apt-get yum brew port pkgutil pkgadd pacman)
+  UTIL_LOOKUP_PROGS(PKGHANDLER, zypper apt-get yum brew port pkgutil pkgadd pacman apk)
 ])
 
 AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
@@ -42,22 +42,24 @@ AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
     PKGHANDLER_COMMAND=
 
     case $PKGHANDLER in
-      apt-get)
+      *apt-get)
         apt_help     $MISSING_DEPENDENCY ;;
-      yum)
+      *yum)
         yum_help     $MISSING_DEPENDENCY ;;
-      brew)
+      *brew)
         brew_help    $MISSING_DEPENDENCY ;;
-      port)
+      *port)
         port_help    $MISSING_DEPENDENCY ;;
-      pkgutil)
+      *pkgutil)
         pkgutil_help $MISSING_DEPENDENCY ;;
-      pkgadd)
+      *pkgadd)
         pkgadd_help  $MISSING_DEPENDENCY ;;
-      zypper)
+      *zypper)
         zypper_help  $MISSING_DEPENDENCY ;;
-      pacman)
+      *pacman)
         pacman_help  $MISSING_DEPENDENCY ;;
+      *apk)
+        apk_help     $MISSING_DEPENDENCY ;;
     esac
 
     if test "x$PKGHANDLER_COMMAND" != x; then
@@ -184,6 +186,27 @@ pkgadd_help() {
   PKGHANDLER_COMMAND=""
 }
 
+apk_help() {
+  case $1 in
+    devkit)
+      PKGHANDLER_COMMAND="sudo apk add alpine-sdk linux-headers" ;;
+    alsa)
+      PKGHANDLER_COMMAND="sudo apk add alsa-lib-dev" ;;
+    cups)
+      PKGHANDLER_COMMAND="sudo apk add cups-dev" ;;
+    fontconfig)
+      PKGHANDLER_COMMAND="sudo apk add fontconfig-dev" ;;
+    freetype)
+      PKGHANDLER_COMMAND="sudo apk add freetype-dev" ;;
+    harfbuzz)
+      PKGHANDLER_COMMAND="sudo apk add harfbuzz-dev" ;;
+    x11)
+      PKGHANDLER_COMMAND="sudo apk add libxtst-dev libxt-dev libxrender-dev libxrandr-dev" ;;
+    ccache)
+      PKGHANDLER_COMMAND="sudo apk add ccache" ;;
+  esac
+}
+
 # This function will check if we're called from the "configure" wrapper while
 # printing --help. If so, we will print out additional information that can
 # only be extracted within the autoconf script, and then exit. This must be

make/autoconf/jdk-options.m4

@@ -169,6 +169,23 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_OPTIONS],
   fi
   AC_SUBST(CACERTS_FILE)
 
+  # Choose cacerts source folder for user provided PEM files
+  AC_ARG_WITH(cacerts-src, [AS_HELP_STRING([--with-cacerts-src],
+      [specify alternative cacerts source folder containing certificates])])
+  CACERTS_SRC=""
+  AC_MSG_CHECKING([for cacerts source])
+  if test "x$with_cacerts_src" == x; then
+    AC_MSG_RESULT([default])
+  else
+    CACERTS_SRC=$with_cacerts_src
+    if test ! -d "$CACERTS_SRC"; then
+      AC_MSG_RESULT([fail])
+      AC_MSG_ERROR([Specified cacerts source folder "$CACERTS_SRC" does not exist])
+    fi
+    AC_MSG_RESULT([$CACERTS_SRC])
+  fi
+  AC_SUBST(CACERTS_SRC)
+
   # Enable or disable unlimited crypto
   UTIL_ARG_ENABLE(NAME: unlimited-crypto, DEFAULT: true, RESULT: UNLIMITED_CRYPTO,
       DESC: [enable unlimited crypto policy])
@@ -199,6 +216,12 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_OPTIONS],
     AC_MSG_ERROR([Copyright year must have a value])
   elif test "x$with_copyright_year" != x; then
     COPYRIGHT_YEAR="$with_copyright_year"
+  elif test "x$SOURCE_DATE_EPOCH" != x; then
+    if test "x$IS_GNU_DATE" = xyes; then
+      COPYRIGHT_YEAR=`date --date=@$SOURCE_DATE_EPOCH +%Y`
+    else
+      COPYRIGHT_YEAR=`date -j -f %s $SOURCE_DATE_EPOCH +%Y`
+    fi
   else
     COPYRIGHT_YEAR=`$DATE +'%Y'`
   fi

make/autoconf/jdk-version.m4

@@ -69,6 +69,17 @@ AC_DEFUN_ONCE([JDKVER_SETUP_JDK_VERSION_NUMBERS],
   AC_SUBST(JDK_RC_PLATFORM_NAME)
   AC_SUBST(HOTSPOT_VM_DISTRO)
 
+  # Setup username (for use in adhoc version strings etc)
+  AC_ARG_WITH([build-user], [AS_HELP_STRING([--with-build-user],
+      [build username to use in version strings])])
+  if test "x$with_build_user" != x; then
+    USERNAME="$with_build_user"
+  else
+    # Outer [ ] to quote m4.
+    [ USERNAME=`$ECHO "$USER" | $TR -d -c '[a-z][A-Z][0-9]'` ]
+  fi
+  AC_SUBST(USERNAME)
+
   # Set the JDK RC name
   AC_ARG_WITH(jdk-rc-name, [AS_HELP_STRING([--with-jdk-rc-name],
       [Set JDK RC name. This is used for FileDescription and ProductName properties

make/autoconf/jvm-features.m4

@@ -307,7 +307,8 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_SHENANDOAHGC],
   JVM_FEATURES_CHECK_AVAILABILITY(shenandoahgc, [
     AC_MSG_CHECKING([if platform is supported by Shenandoah])
     if test "x$OPENJDK_TARGET_CPU_ARCH" = "xx86" || \
-        test "x$OPENJDK_TARGET_CPU" = "xaarch64" ; then
+        test "x$OPENJDK_TARGET_CPU" = "xaarch64" || \
+        test "x$OPENJDK_TARGET_CPU" = "xppc64le"; then
       AC_MSG_RESULT([yes])
     else
       AC_MSG_RESULT([no, $OPENJDK_TARGET_CPU])
@@ -357,6 +358,13 @@ AC_DEFUN_ONCE([JVM_FEATURES_CHECK_ZGC],
         AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
         AVAILABLE=false
       fi
+    elif test "x$OPENJDK_TARGET_CPU" = "xppc64le"; then
+      if test "x$OPENJDK_TARGET_OS" = "xlinux"; then
+        AC_MSG_RESULT([yes])
+      else
+        AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
+        AVAILABLE=false
+      fi
     else
       AC_MSG_RESULT([no, $OPENJDK_TARGET_OS-$OPENJDK_TARGET_CPU])
       AVAILABLE=false

make/autoconf/lib-bundled.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -217,6 +217,9 @@ AC_DEFUN_ONCE([LIB_SETUP_ZLIB],
   LIBZ_LIBS=""
   if test "x$USE_EXTERNAL_LIBZ" = "xfalse"; then
     LIBZ_CFLAGS="$LIBZ_CFLAGS -I$TOPDIR/src/java.base/share/native/libzip/zlib"
+    if test "x$OPENJDK_TARGET_OS" = xmacosx; then
+        LIBZ_CFLAGS="$LIBZ_CFLAGS -DHAVE_UNISTD_H"
+    fi
   else
     LIBZ_LIBS="-lz"
   fi

make/autoconf/platform.m4

@@ -72,6 +72,12 @@ AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_CPU],
       VAR_CPU_BITS=64
       VAR_CPU_ENDIAN=little
       ;;
+    loongarch64)
+      VAR_CPU=loongarch64
+      VAR_CPU_ARCH=loongarch
+      VAR_CPU_BITS=64
+      VAR_CPU_ENDIAN=little
+      ;;
     m68k)
       VAR_CPU=m68k
       VAR_CPU_ARCH=m68k
@@ -206,7 +212,7 @@ AC_DEFUN([PLATFORM_EXTRACT_VARS_FROM_OS],
       VAR_OS=windows
       VAR_OS_ENV=windows.wsl
       ;;
-    *msys*)
+    *msys* | *mingw*)
       VAR_OS=windows
       VAR_OS_ENV=windows.msys2
       ;;

make/autoconf/spec.gmk.in

@@ -364,6 +364,9 @@ BUILD_JDK:=@BUILD_JDK@
 CREATE_BUILDJDK:=@CREATE_BUILDJDK@
 EXTERNAL_BUILDJDK:=@EXTERNAL_BUILDJDK@
 
+# Whether the boot jdk jar supports --date=TIMESTAMP
+BOOT_JDK_JAR_SUPPORTS_DATE:=@BOOT_JDK_JAR_SUPPORTS_DATE@
+
 # When compiling Java source to be run by the boot jdk
 # use these extra flags, eg -source 6 -target 6
 BOOT_JDK_SOURCETARGET:=@BOOT_JDK_SOURCETARGET@
@@ -409,6 +412,8 @@ GTEST_FRAMEWORK_SRC := @GTEST_FRAMEWORK_SRC@
 
 # Source file for cacerts
 CACERTS_FILE=@CACERTS_FILE@
+# Source folder for user provided cacerts PEM files 
+CACERTS_SRC=@CACERTS_SRC@
 
 # Enable unlimited crypto policy
 UNLIMITED_CRYPTO=@UNLIMITED_CRYPTO@
@@ -698,6 +703,7 @@ CODESIGN:=@CODESIGN@
 CP:=@CP@
 CUT:=@CUT@
 DATE:=@DATE@
+IS_GNU_DATE:=@IS_GNU_DATE@
 DIFF:=@DIFF@
 DIRNAME:=@DIRNAME@
 DSYMUTIL:=@DSYMUTIL@

make/autoconf/toolchain.m4

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -221,6 +221,12 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
   AC_ARG_WITH(toolchain-type, [AS_HELP_STRING([--with-toolchain-type],
       [the toolchain type (or family) to use, use '--help' to show possible values @<:@platform dependent@:>@])])
 
+  # Linux x86_64 needs higher binutils after 8265783
+  # (this really is a dependency on as version, but we take ld as a check for a general binutils version)
+  if test "x$OPENJDK_TARGET_CPU" = "xx86_64"; then
+    TOOLCHAIN_MINIMUM_LD_VERSION_gcc="2.25"
+  fi
+
   # Use indirect variable referencing
   toolchain_var_name=VALID_TOOLCHAINS_$OPENJDK_BUILD_OS
   VALID_TOOLCHAINS=${!toolchain_var_name}
@@ -228,7 +234,7 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETERMINE_TOOLCHAIN_TYPE],
   if test "x$OPENJDK_TARGET_OS" = xmacosx; then
     if test -n "$XCODEBUILD"; then
       # On Mac OS X, default toolchain to clang after Xcode 5
-      XCODE_VERSION_OUTPUT=`"$XCODEBUILD" -version 2>&1 | $HEAD -n 1`
+      XCODE_VERSION_OUTPUT=`"$XCODEBUILD" -version | $HEAD -n 1`
       $ECHO "$XCODE_VERSION_OUTPUT" | $GREP "Xcode " > /dev/null
       if test $? -ne 0; then
         AC_MSG_NOTICE([xcodebuild output: $XCODE_VERSION_OUTPUT])
@@ -677,9 +683,10 @@ AC_DEFUN_ONCE([TOOLCHAIN_DETECT_TOOLCHAIN_CORE],
   TOOLCHAIN_PREPARE_FOR_LD_VERSION_COMPARISONS
 
   if test "x$TOOLCHAIN_MINIMUM_LD_VERSION" != x; then
+    AC_MSG_NOTICE([comparing linker version to minimum version $TOOLCHAIN_MINIMUM_LD_VERSION])
     TOOLCHAIN_CHECK_LINKER_VERSION(VERSION: $TOOLCHAIN_MINIMUM_LD_VERSION,
         IF_OLDER_THAN: [
-          AC_MSG_WARN([You are using a linker older than $TOOLCHAIN_MINIMUM_LD_VERSION. This is not a supported configuration.])
+          AC_MSG_ERROR([You are using a linker older than $TOOLCHAIN_MINIMUM_LD_VERSION. This is not a supported configuration.])
         ]
     )
   fi

make/autoconf/toolchain_microsoft.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
@@ -25,7 +25,7 @@
 
 ################################################################################
 # The order of these defines the priority by which we try to find them.
-VALID_VS_VERSIONS="2019 2017"
+VALID_VS_VERSIONS="2019 2017 2022"
 
 VS_DESCRIPTION_2017="Microsoft Visual Studio 2017"
 VS_VERSION_INTERNAL_2017=141
@@ -56,6 +56,21 @@ VS_SDK_PLATFORM_NAME_2019=
 VS_SUPPORTED_2019=true
 VS_TOOLSET_SUPPORTED_2019=true
 
+VS_DESCRIPTION_2022="Microsoft Visual Studio 2022"
+VS_VERSION_INTERNAL_2022=143
+VS_MSVCR_2022=vcruntime140.dll
+VS_VCRUNTIME_1_2022=vcruntime140_1.dll
+VS_MSVCP_2022=msvcp140.dll
+VS_ENVVAR_2022="VS170COMNTOOLS"
+VS_USE_UCRT_2022="true"
+VS_VS_INSTALLDIR_2022="Microsoft Visual Studio/2022"
+VS_EDITIONS_2022="BuildTools Community Professional Enterprise"
+VS_SDK_INSTALLDIR_2022=
+VS_VS_PLATFORM_NAME_2022="v143"
+VS_SDK_PLATFORM_NAME_2022=
+VS_SUPPORTED_2022=true
+VS_TOOLSET_SUPPORTED_2022=true
+
 ################################################################################
 
 AC_DEFUN([TOOLCHAIN_CHECK_POSSIBLE_VISUAL_STUDIO_ROOT],

make/autoconf/util.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
@@ -236,13 +236,15 @@ AC_DEFUN([UTIL_GET_MATCHING_VALUES],
 # $2: input date/time string
 AC_DEFUN([UTIL_GET_EPOCH_TIMESTAMP],
 [
-  timestamp=$($DATE --utc --date=$2 +"%s" 2> /dev/null)
-  if test "x$timestamp" = x; then
-    # GNU date format did not work, try BSD date options
-    timestamp=$($DATE -j -f "%F %T" "$2" "+%s" 2> /dev/null)
+  if test "x$IS_GNU_DATE" = xyes; then
+    # GNU date
+    timestamp=$($DATE --utc --date=$2 +"%s" 2> /dev/null)
+  else
+    # BSD date
+    timestamp=$($DATE -u -j -f "%F %T" "$2" "+%s" 2> /dev/null)
     if test "x$timestamp" = x; then
       # Perhaps the time was missing
-      timestamp=$($DATE -j -f "%F %T" "$2 00:00:00" "+%s" 2> /dev/null)
+      timestamp=$($DATE -u -j -f "%F %T" "$2 00:00:00" "+%s" 2> /dev/null)
       # If this did not work, we give up and return the empty string
     fi
   fi

make/common/JarArchive.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -193,7 +193,8 @@ define SetupJarArchiveBody
   $1_UPDATE_CONTENTS=\
       if [ "`$(WC) -l $$($1_BIN)/_the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'`" -gt "0" ]; then \
         $(ECHO) "  updating" `$(WC) -l $$($1_BIN)/_the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'` files && \
-        $$($1_JAR_CMD) $$($1_JAR_UPDATE_OPTIONS) $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents; \
+        $(SORT) $$($1_BIN)/_the.$$($1_JARNAME)_contents > $$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted && \
+        $$($1_JAR_CMD) --update $$($1_JAR_OPTIONS) --file $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted; \
       fi $$(NEWLINE)
   # The s-variants of the above macros are used when the jar is created from scratch.
   # NOTICE: please leave the parentheses space separated otherwise the AIX build will break!
@@ -212,25 +213,29 @@ define SetupJarArchiveBody
             | $(SED) 's|$$(src)/|-C $$(src) |g' >> \
         $$($1_BIN)/_the.$$($1_JARNAME)_contents) $$(NEWLINE) )
   endif
-  $1_SUPDATE_CONTENTS=$$($1_JAR_CMD) $$($1_JAR_UPDATE_OPTIONS) $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents $$(NEWLINE)
+  $1_SUPDATE_CONTENTS=\
+      $(SORT) $$($1_BIN)/_the.$$($1_JARNAME)_contents > $$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted && \
+      $$($1_JAR_CMD) --update $$($1_JAR_OPTIONS) --file $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted $$(NEWLINE)
 
   # Use a slightly shorter name for logging, but with enough path to identify this jar.
   $1_NAME:=$$(subst $$(OUTPUTDIR)/,,$$($1_JAR))
 
-  ifneq (,$$($1_CHECK_COMPRESS_JAR))
-    $1_JAR_CREATE_OPTIONS := c0fm
-    $1_JAR_UPDATE_OPTIONS := u0f
-    ifeq ($(COMPRESS_JARS), true)
-      $1_JAR_CREATE_OPTIONS := cfm
-      $1_JAR_UPDATE_OPTIONS := uf
+  # If reproducible build and the boot jdk jar supports --date option
+  # then specify the --date using SOURCE_DATE in ISO-8601
+  $1_JAR_OPTIONS :=
+  ifeq ($$(ENABLE_REPRODUCIBLE_BUILD), true)
+    ifeq ($$(BOOT_JDK_JAR_SUPPORTS_DATE), true)
+      $1_JAR_OPTIONS += --date $(SOURCE_DATE_ISO_8601)
+    endif
+  endif
+  ifneq (,$$($1_CHECK_COMPRESS_JAR))
+    ifneq ($(COMPRESS_JARS), true)
+      $1_JAR_OPTIONS += --no-compress
     endif
-  else
-    $1_JAR_CREATE_OPTIONS := cfm
-    $1_JAR_UPDATE_OPTIONS := uf
   endif
 
   # Include all variables of significance in the vardeps file
-  $1_VARDEPS := $$($1_JAR_CMD) $$($1_JAR_CREATE_OPTIONS) $$($1_MANIFEST) \
+  $1_VARDEPS := $$($1_JAR_CMD) $$($1_JAR_OPTIONS) $$($1_MANIFEST) \
       $$($1_JARMAIN) $$($1_EXTRA_MANIFEST_ATTR) $$($1_ORIG_DEPS) $$($1_SRCS) \
       $$($1_INCLUDES) $$($1_EXCLUDES) $$($1_EXCLUDE_FILES) $$($1_EXTRA_FILES)
   $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, $$($1_BIN)/_the.$$($1_JARNAME).vardeps)
@@ -255,7 +260,7 @@ define SetupJarArchiveBody
 	  $$(if $$($1_EXTRA_MANIFEST_ATTR), \
 	    $(PRINTF) "$$($1_EXTRA_MANIFEST_ATTR)\n" >> $$($1_MANIFEST_FILE) $$(NEWLINE)) \
 	  $(ECHO) Creating $$($1_NAME) $$(NEWLINE) \
-	  $$($1_JAR_CMD) $$($1_JAR_CREATE_OPTIONS) $$@ $$($1_MANIFEST_FILE) $$(NEWLINE) \
+	  $$($1_JAR_CMD) --create $$($1_JAR_OPTIONS) --file $$@ --manifest $$($1_MANIFEST_FILE) $$(NEWLINE) \
 	  $$($1_SCAPTURE_CONTENTS) \
 	  $$($1_SCAPTURE_METAINF) \
 	  $$($1_SUPDATE_CONTENTS) \

make/common/NativeCompilation.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -358,6 +358,20 @@ define SetupCompileNativeFileBody
       # Compile as preprocessed assembler file
       $1_FLAGS := $(BASIC_ASFLAGS) $$($1_BASE_ASFLAGS)
       $1_COMPILER := $(AS)
+
+      # gcc or clang assembly files must contain an appropriate relative .file
+      # path for reproducible builds.
+      ifneq ($(findstring $(TOOLCHAIN_TYPE), gcc clang), )
+        # If no absolute paths allowed, work out relative source file path
+        # for assembly .file substitution, otherwise use full file path
+        ifeq ($(ALLOW_ABSOLUTE_PATHS_IN_OUTPUT), false)
+          $1_REL_ASM_SRC := $$(call RelativePath, $$($1_FILE), $(WORKSPACE_ROOT))
+        else
+          $1_REL_ASM_SRC := $$($1_FILE)
+        endif
+        $1_FLAGS := $$($1_FLAGS) -DASSEMBLY_SRC_FILE='"$$($1_REL_ASM_SRC)"' \
+            -include $(TOPDIR)/make/data/autoheaders/assemblyprefix.h
+      endif
     else ifneq ($$(filter %.cpp %.cc %.mm, $$($1_FILENAME)), )
       # Compile as a C++ or Objective-C++ file
       $1_FLAGS := $(CFLAGS_CCACHE) $$($1_USE_PCH_FLAGS) $$($1_BASE_CXXFLAGS) \
@@ -389,6 +403,13 @@ define SetupCompileNativeFileBody
     $1_OBJ_DEPS := $$($1_SRC_FILE) $$($$($1_BASE)_COMPILE_VARDEPS_FILE) \
         $$($$($1_BASE)_EXTRA_DEPS) $$($1_VARDEPS_FILE)
     $1_COMPILE_OPTIONS := $$($1_FLAGS) $(CC_OUT_OPTION)$$($1_OBJ) $$($1_SRC_FILE)
+    # For reproducible builds with gcc and clang ensure random symbol generation is
+    # seeded deterministically
+    ifneq ($(findstring $(TOOLCHAIN_TYPE), gcc clang), )
+       ifeq ($$(ENABLE_REPRODUCIBLE_BUILD), true)
+         $1_COMPILE_OPTIONS += -frandom-seed="$$($1_FILENAME)"
+       endif
+    endif
 
     $$($1_OBJ_JSON): $$($1_OBJ_DEPS)
 	$$(call WriteCompileCommandsFragment, $$@, $$(PWD), $$($1_SRC_FILE), \

make/common/ZipArchive.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
@@ -26,6 +26,9 @@
 ifndef _ZIP_ARCHIVE_GMK
 _ZIP_ARCHIVE_GMK := 1
 
+# Depends on build tools for MakeZipReproducible
+include ../ToolsJdk.gmk
+
 ifeq (,$(_MAKEBASE_GMK))
   $(error You must include MakeBase.gmk prior to including ZipArchive.gmk)
 endif
@@ -51,6 +54,8 @@ endif
 #   FOLLOW_SYMLINKS - Set to explicitly follow symlinks. Affects performance of
 #                     finding files.
 #   ZIP_OPTIONS extra options to pass to zip
+#   REPRODUCIBLE override ENABLE_REPRODUCIBLE_BUILD (to make zip reproducible or not)
+
 SetupZipArchive = $(NamedParamsMacroTemplate)
 define SetupZipArchiveBody
 
@@ -124,6 +129,10 @@ define SetupZipArchiveBody
     ) \
   )
 
+  ifeq ($$($1_REPRODUCIBLE), )
+    $1_REPRODUCIBLE := $$(ENABLE_REPRODUCIBLE_BUILD)
+  endif
+
   # Use a slightly shorter name for logging, but with enough path to identify this zip.
   $1_NAME:=$$(subst $$(OUTPUTDIR)/,,$$($1_ZIP))
 
@@ -134,6 +143,8 @@ define SetupZipArchiveBody
   # dir is very small.
   # If zip has nothing to do, it returns 12 and would fail the build. Check for 12
   # and only fail if it's not.
+  # For reproducible builds set the zip access & modify times to SOURCE_DATE_EPOCH
+  # by using a ziptmp folder to generate final zip from using MakeZipReproducible.
   $$($1_ZIP) : $$($1_ALL_SRCS) $$($1_EXTRA_DEPS)
 	$$(call LogWarn, Updating $$($1_NAME))
 	$$(call MakeTargetDir)
@@ -163,7 +174,18 @@ define SetupZipArchiveBody
 	        $$($1_ZIP_EXCLUDES_$$s) \
 	        || test "$$$$?" = "12" \
 	    ))$$(NEWLINE) \
-	) true \
+	) true
+        ifeq ($$($1_REPRODUCIBLE), true)
+	    $$(call ExecuteWithLog, \
+		$$(SUPPORT_OUTPUTDIR)/makezipreproducible/$$(patsubst $$(OUTPUTDIR)/%,%, $$@), \
+		($(RM) $$(SUPPORT_OUTPUTDIR)/ziptmp/$1/tmp.zip && \
+		 $(MKDIR) -p $$(SUPPORT_OUTPUTDIR)/ziptmp/$1 && \
+		 $(TOOL_MAKEZIPREPRODUCIBLE) -f $$(SUPPORT_OUTPUTDIR)/ziptmp/$1/tmp.zip \
+			 		     -t $(SOURCE_DATE_EPOCH) $$@ && \
+		 $(RM) $$@ && \
+		 $(MV) $$(SUPPORT_OUTPUTDIR)/ziptmp/$1/tmp.zip $$@ \
+		))
+        endif
 	$(TOUCH) $$@
 
   # Add zip to target list

make/common/modules/LauncherCommon.gmk

@@ -196,9 +196,11 @@ endef
 ################################################################################
 # Create man pages for jmod to pick up. There should be a one-to-one
 # relationship between executables and man pages (even if this is not always
-# the case), so piggyback man page generation on the launcher compilation.
+# the case), so piggyback man page generation on the launcher compilation. This
+# file may be included from other places as well, so only process man pages
+# when called from <module>/Launcher.gmk.
 
-ifeq ($(call isTargetOsType, unix), true)
+ifeq ($(call isTargetOsType, unix)+$(MAKEFILE_PREFIX), true+Launcher)
   # Only build manpages on unix systems.
   # We assume all our man pages should reside in section 1.
 
@@ -242,9 +244,9 @@ ifeq ($(call isTargetOsType, unix), true)
           FILTER := $(PANDOC_TROFF_MANPAGE_FILTER), \
           POST_PROCESS := $(MAN_POST_PROCESS), \
           REPLACEMENTS := \
-		@@COPYRIGHT_YEAR@@ => $(COPYRIGHT_YEAR) ; \
-		@@VERSION_SHORT@@ => $(VERSION_SHORT) ; \
-		@@VERSION_SPECIFICATION@@ => $(VERSION_SPECIFICATION), \
+              @@COPYRIGHT_YEAR@@ => $(COPYRIGHT_YEAR) ; \
+              @@VERSION_SHORT@@ => $(VERSION_SHORT) ; \
+              @@VERSION_SPECIFICATION@@ => $(VERSION_SPECIFICATION), \
           EXTRA_DEPS := $(PANDOC_TROFF_MANPAGE_FILTER) \
               $(PANDOC_TROFF_MANPAGE_FILTER_SOURCE), \
       ))

make/conf/github-actions.conf

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2020, 2022, 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
@@ -23,21 +23,19 @@
 # questions.
 #
 
-# Versions and download locations for dependencies used by pre-submit testing.
+# Versions and download locations for dependencies used by GitHub Actions (GHA)
 
-BOOT_JDK_VERSION=16
-JTREG_VERSION=6
-JTREG_BUILD=1
 GTEST_VERSION=1.8.1
+JTREG_VERSION=6.1+2
 
-LINUX_X64_BOOT_JDK_FILENAME=openjdk-16_linux-x64_bin.tar.gz
-LINUX_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_linux-x64_bin.tar.gz
-LINUX_X64_BOOT_JDK_SHA256=e952958f16797ad7dc7cd8b724edd69ec7e0e0434537d80d6b5165193e33b931
+LINUX_X64_BOOT_JDK_EXT=tar.gz
+LINUX_X64_BOOT_JDK_URL=https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.2%2B8/OpenJDK17U-jdk_x64_linux_hotspot_17.0.2_8.tar.gz
+LINUX_X64_BOOT_JDK_SHA256=288f34e3ba8a4838605636485d0365ce23e57d5f2f68997ac4c2e4c01967cd48
 
-WINDOWS_X64_BOOT_JDK_FILENAME=openjdk-16_windows-x64_bin.zip
-WINDOWS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_windows-x64_bin.zip
-WINDOWS_X64_BOOT_JDK_SHA256=a78bdeaad186297601edac6772d931224d7af6f682a43372e693c37020bd37d6
+WINDOWS_X64_BOOT_JDK_EXT=zip
+WINDOWS_X64_BOOT_JDK_URL=https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.2%2B8/OpenJDK17U-jdk_x64_windows_hotspot_17.0.2_8.zip
+WINDOWS_X64_BOOT_JDK_SHA256=d083479ca927dce2f586f779373d895e8bf668c632505740279390384edf03fa
 
-MACOS_X64_BOOT_JDK_FILENAME=openjdk-16_osx-x64_bin.tar.gz
-MACOS_X64_BOOT_JDK_URL=https://download.java.net/java/GA/jdk16/7863447f0ab643c585b9bdebf67c69db/36/GPL/openjdk-16_osx-x64_bin.tar.gz
-MACOS_X64_BOOT_JDK_SHA256=16f3e39a31e86f3f51b0b4035a37494a47ed3c4ead760eafc6afd7afdf2ad9f2
+MACOS_X64_BOOT_JDK_EXT=tar.gz
+MACOS_X64_BOOT_JDK_URL=https://github.com/adoptium/temurin17-binaries/releases/download/jdk-17.0.2%2B8/OpenJDK17U-jdk_x64_mac_hotspot_17.0.2_8.tar.gz
+MACOS_X64_BOOT_JDK_SHA256=3630e21a571b7180876bf08f85d0aac0bdbb3267b2ae9bd242f4933b21f9be32

make/conf/javadoc.conf

@@ -1,4 +1,4 @@
-# Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -23,9 +23,9 @@
 #
 
 # URLs
-JAVADOC_BASE_URL=https://docs.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_NUMBER)&id=homepage
+JAVADOC_BASE_URL=https://docs.oracle.com/pls/topic/lookup?ctx=javase$(VERSION_FEATURE)&id=homepage
 BUG_SUBMIT_URL=https://bugreport.java.com/bugreport/
 COPYRIGHT_URL=legal/copyright.html
-LICENSE_URL=https://www.oracle.com/java/javase/terms/license/java$(VERSION_NUMBER)speclicense.html
+LICENSE_URL=https://www.oracle.com/java/javase/terms/license/java$(VERSION_FEATURE)speclicense.html
 REDISTRIBUTION_URL=https://www.oracle.com/technetwork/java/redist-137594.html
 OTHER_JDK_VERSIONS_URL=https://docs.oracle.com/en/java/javase/index.html

make/conf/jib-profiles.js

@@ -249,7 +249,7 @@ var getJibProfilesCommon = function (input, data) {
         dependencies: ["boot_jdk", "gnumake", "jtreg", "jib", "autoconf", "jmh", "jcov"],
         default_make_targets: ["product-bundles", "test-bundles", "static-libs-bundles"],
         configure_args: concat("--enable-jtreg-failure-handler",
-            "--with-exclude-translations=de,es,fr,it,ko,pt_BR,sv,ca,tr,cs,sk,ja_JP_A,ja_JP_HA,ja_JP_HI,ja_JP_I,zh_TW,zh_HK",
+            "--with-exclude-translations=es,fr,it,ko,pt_BR,sv,ca,tr,cs,sk,ja_JP_A,ja_JP_HA,ja_JP_HI,ja_JP_I,zh_TW,zh_HK",
             "--disable-manpages",
             "--disable-jvm-feature-shenandoahgc",
             versionArgs(input, common))
@@ -564,7 +564,7 @@ var getJibProfilesProfiles = function (input, common, data) {
             "ANT_HOME": input.get("ant", "home_path")
         }
     };
-    [ "linux-x64", "macosx-x64", "windows-x64"]
+    [ "linux-x64", "macosx-x64", "windows-x64", "linux-aarch64"]
         .forEach(function (name) {
             var maketestName = name + "-testmake";
             profiles[maketestName] = concatObjects(profiles[name], testmakeBase);
@@ -1049,7 +1049,7 @@ var getJibProfilesDependencies = function (input, common) {
     var devkit_platform_revisions = {
         linux_x64: "gcc10.3.0-OL6.4+1.0",
         macosx: "Xcode12.4+1.0",
-        windows_x64: "VS2019-16.9.3+1.0",
+        windows_x64: "VS2022-17.1.0+1.0",
         linux_aarch64: "gcc10.3.0-OL7.6+1.0",
         linux_arm: "gcc8.2.0-Fedora27+1.0",
         linux_ppc64le: "gcc8.2.0-Fedora27+1.0",

make/conf/version-numbers.conf

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -28,15 +28,15 @@
 
 DEFAULT_VERSION_FEATURE=17
 DEFAULT_VERSION_INTERIM=0
-DEFAULT_VERSION_UPDATE=0
+DEFAULT_VERSION_UPDATE=6
 DEFAULT_VERSION_PATCH=0
 DEFAULT_VERSION_EXTRA1=0
 DEFAULT_VERSION_EXTRA2=0
 DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2021-09-14
+DEFAULT_VERSION_DATE=2023-01-17
 DEFAULT_VERSION_CLASSFILE_MAJOR=61  # "`$EXPR $DEFAULT_VERSION_FEATURE + 44`"
 DEFAULT_VERSION_CLASSFILE_MINOR=0
 DEFAULT_VERSION_DOCS_API_SINCE=11
 DEFAULT_ACCEPTABLE_BOOT_VERSIONS="16 17"
 DEFAULT_JDK_SOURCE_TARGET_VERSION=17
-DEFAULT_PROMOTED_VERSION_PRE=
+DEFAULT_PROMOTED_VERSION_PRE=ea

make/data/autoheaders/assemblyprefix.h

@@ -0,0 +1,31 @@
+#
+# Copyright (c) 2022, 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.
+#
+
+// ASSEMBLY_SRC_FILE gets replaced by relative or absolute file path
+// in NativeCompilation.gmk for gcc tooling on Linux. This ensures a
+// reproducible object file through a predictable value of the STT_FILE
+// symbol, and subsequently a reproducible .debuginfo.
+.file ASSEMBLY_SRC_FILE
+

make/data/cacerts/globalsignr2ca

@@ -1,29 +0,0 @@
-Owner: CN=GlobalSign, O=GlobalSign, OU=GlobalSign Root CA - R2
-Issuer: CN=GlobalSign, O=GlobalSign, OU=GlobalSign Root CA - R2
-Serial number: 400000000010f8626e60d
-Valid from: Fri Dec 15 08:00:00 GMT 2006 until: Wed Dec 15 08:00:00 GMT 2021
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 2048-bit RSA key
-Version: 3
------BEGIN CERTIFICATE-----
-MIIDujCCAqKgAwIBAgILBAAAAAABD4Ym5g0wDQYJKoZIhvcNAQEFBQAwTDEgMB4G
-A1UECxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjIxEzARBgNVBAoTCkdsb2JhbFNp
-Z24xEzARBgNVBAMTCkdsb2JhbFNpZ24wHhcNMDYxMjE1MDgwMDAwWhcNMjExMjE1
-MDgwMDAwWjBMMSAwHgYDVQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMjETMBEG
-A1UEChMKR2xvYmFsU2lnbjETMBEGA1UEAxMKR2xvYmFsU2lnbjCCASIwDQYJKoZI
-hvcNAQEBBQADggEPADCCAQoCggEBAKbPJA6+Lm8omUVCxKs+IVSbC9N/hHD6ErPL
-v4dfxn+G07IwXNb9rfF73OX4YJYJkhD10FPe+3t+c4isUoh7SqbKSaZeqKeMWhG8
-eoLrvozps6yWJQeXSpkqBy+0Hne/ig+1AnwblrjFuTosvNYSuetZfeLQBoZfXklq
-tTleiDTsvHgMCJiEbKjNS7SgfQx5TfC4LcshytVsW33hoCmEofnTlEnLJGKRILzd
-C9XZzPnqJworc5HGnRusyMvo4KD0L5CLTfuwNhv2GXqF4G3yYROIXJ/gkwpRl4pa
-zq+r1feqCapgvdzZX99yqWATXgAByUr6P6TqBwMhAo6CygPCm48CAwEAAaOBnDCB
-mTAOBgNVHQ8BAf8EBAMCAQYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUm+IH
-V2ccHsBqBt5ZtJot39wZhi4wNgYDVR0fBC8wLTAroCmgJ4YlaHR0cDovL2NybC5n
-bG9iYWxzaWduLm5ldC9yb290LXIyLmNybDAfBgNVHSMEGDAWgBSb4gdXZxwewGoG
-3lm0mi3f3BmGLjANBgkqhkiG9w0BAQUFAAOCAQEAmYFThxxol4aR7OBKuEQLq4Gs
-J0/WwbgcQ3izDJr86iw8bmEbTUsp9Z8FHSbBuOmDAGJFtqkIk7mpM0sYmsL4h4hO
-291xNBrBVNpGP+DTKqttVCL1OmLNIG+6KYnX3ZHu01yiPqFbQfXf5WRDLenVOavS
-ot+3i9DAgBkcRcAtjOj4LaR0VknFBbVPFd5uRHg5h6h+u/N5GJG79G+dwfCMNYxd
-AfvDbbnvRG15RjF+Cv6pgsH/76tuIMRQyV+dTZsXjAzlAcmgQWpzU/qlULRuJQ/7
-TBj0/VLZjmmx6BEP3ojY+x1J96relc8geMJgEtslQIxq/H5COEBkEveegeGTLg==
------END CERTIFICATE-----

make/data/cacerts/identrustdstx3

@@ -1,27 +0,0 @@
-Owner: CN=DST Root CA X3, O=Digital Signature Trust Co.
-Issuer: CN=DST Root CA X3, O=Digital Signature Trust Co.
-Serial number: 44afb080d6a327ba893039862ef8406b
-Valid from: Sat Sep 30 21:12:19 GMT 2000 until: Thu Sep 30 14:01:15 GMT 2021
-Signature algorithm name: SHA1withRSA
-Subject Public Key Algorithm: 2048-bit RSA key
-Version: 3
------BEGIN CERTIFICATE-----
-MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/
-MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
-DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow
-PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD
-Ew5EU1QgUm9vdCBDQSBYMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB
-AN+v6ZdQCINXtMxiZfaQguzH0yxrMMpb7NnDfcdAwRgUi+DoM3ZJKuM/IUmTrE4O
-rz5Iy2Xu/NMhD2XSKtkyj4zl93ewEnu1lcCJo6m67XMuegwGMoOifooUMM0RoOEq
-OLl5CjH9UL2AZd+3UWODyOKIYepLYYHsUmu5ouJLGiifSKOeDNoJjj4XLh7dIN9b
-xiqKqy69cK3FCxolkHRyxXtqqzTWMIn/5WgTe1QLyNau7Fqckh49ZLOMxt+/yUFw
-7BZy1SbsOFU5Q9D8/RhcQPGX69Wam40dutolucbY38EVAjqr2m7xPi71XAicPNaD
-aeQQmxkqtilX4+U9m5/wAl0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNV
-HQ8BAf8EBAMCAQYwHQYDVR0OBBYEFMSnsaR7LHH62+FLkHX/xBVghYkQMA0GCSqG
-SIb3DQEBBQUAA4IBAQCjGiybFwBcqR7uKGY3Or+Dxz9LwwmglSBd49lZRNI+DT69
-ikugdB/OEIKcdBodfpga3csTS7MgROSR6cz8faXbauX+5v3gTt23ADq1cEmv8uXr
-AvHRAosZy5Q6XkjEGB5YGV8eAlrwDPGxrancWYaLbumR9YbK+rlmM6pZW87ipxZz
-R8srzJmwN0jP41ZL9c8PDHIyh8bwRLtTcm1D9SZImlJnt1ir/md2cXjbDaJWFBM5
-JDGFoqgCWjBH4d1QB7wCCZAA62RjYJsWvIjJEubSfZGL+T0yjWW06XyxV3bqxbYo
-Ob8VZRzI9neWagqNdwvYkQsEjgfbKbYK7p2CNTUQ
------END CERTIFICATE-----

make/data/cldr/common/bcp47/timezone.xml

@@ -393,7 +393,7 @@ For terms of use, see http://www.unicode.org/copyright.html
             <type name="tvfun" description="Funafuti, Tuvalu" alias="Pacific/Funafuti"/>
             <type name="twtpe" description="Taipei, Taiwan" alias="Asia/Taipei ROC"/>
             <type name="tzdar" description="Dar es Salaam, Tanzania" alias="Africa/Dar_es_Salaam"/>
-            <type name="uaiev" description="Kiev, Ukraine" alias="Europe/Kiev"/>
+            <type name="uaiev" description="Kyiv, Ukraine" alias="Europe/Kiev Europe/Kyiv"/>
             <type name="uaozh" description="Zaporizhia (Zaporozhye), Ukraine" alias="Europe/Zaporozhye"/>
             <type name="uasip" description="Simferopol, Ukraine" alias="Europe/Simferopol"/>
             <type name="uauzh" description="Uzhhorod (Uzhgorod), Ukraine" alias="Europe/Uzhgorod"/>

make/data/currency/CurrencyData.properties

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2000, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -32,7 +32,7 @@ formatVersion=3
 # Version of the currency code information in this class.
 # It is a serial number that accompanies with each amendment.
 
-dataVersion=169
+dataVersion=173
 
 # List of all valid ISO 4217 currency codes.
 # To ensure compatibility, do not remove codes.
@@ -51,10 +51,10 @@ all=ADP020-AED784-AFA004-AFN971-ALL008-AMD051-ANG532-AOA973-ARS032-ATS040-AUD036
     MTL470-MUR480-MVR462-MWK454-MXN484-MXV979-MYR458-MZM508-MZN943-NAD516-NGN566-\
     NIO558-NLG528-NOK578-NPR524-NZD554-OMR512-PAB590-PEN604-PGK598-PHP608-\
     PKR586-PLN985-PTE620-PYG600-QAR634-ROL642-RON946-RSD941-RUB643-RUR810-RWF646-SAR682-\
-    SBD090-SCR690-SDD736-SDG938-SEK752-SGD702-SHP654-SIT705-SKK703-SLL694-SOS706-\
+    SBD090-SCR690-SDD736-SDG938-SEK752-SGD702-SHP654-SIT705-SKK703-SLE925-SLL694-SOS706-\
     SRD968-SRG740-SSP728-STD678-STN930-SVC222-SYP760-SZL748-THB764-TJS972-TMM795-TMT934-TND788-TOP776-\
     TPE626-TRL792-TRY949-TTD780-TWD901-TZS834-UAH980-UGX800-USD840-USN997-USS998-UYI940-\
-    UYU858-UZS860-VEB862-VEF937-VES928-VND704-VUV548-WST882-XAF950-XAG961-XAU959-XBA955-\
+    UYU858-UZS860-VEB862-VED926-VEF937-VES928-VND704-VUV548-WST882-XAF950-XAG961-XAU959-XBA955-\
     XBB956-XBC957-XBD958-XCD951-XDR960-XFO000-XFU000-XOF952-XPD964-XPF953-\
     XPT962-XSU994-XTS963-XUA965-XXX999-YER886-YUM891-ZAR710-ZMK894-ZMW967-ZWD716-ZWL932-\
     ZWN942-ZWR935
@@ -317,6 +317,8 @@ KI=AUD
 KP=KPW
 # KOREA (THE REPUBLIC OF)
 KR=KRW
+# KOSOVO - Not in ISO 3166/4217
+XK=EUR
 # KUWAIT
 KW=KWD
 # KYRGYZSTAN
@@ -482,7 +484,7 @@ CS=CSD
 # SEYCHELLES
 SC=SCR
 # SIERRA LEONE
-SL=SLL
+SL=SLE
 # SINGAPORE
 SG=SGD
 # SLOVAKIA

make/data/jdwp/jdwp.spec

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2020, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 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
@@ -134,9 +134,9 @@ JDWP "Java(tm) Debug Wire Protocol"
         "<ul>"
         "<li>All event requests are cancelled. "
         "<li>All threads suspended by the thread-level "
-        "<a href=\"#JDWP_ThreadReference_Resume\">resume</a> command "
+        "<a href=\"#JDWP_ThreadReference_Suspend\">suspend</a> command "
         "or the VM-level "
-        "<a href=\"#JDWP_VirtualMachine_Resume\">resume</a> command "
+        "<a href=\"#JDWP_VirtualMachine_Suspend\">suspend</a> command "
         "are resumed as many times as necessary for them to run. "
         "<li>Garbage collection is re-enabled in all cases where it was "
         "<a href=\"#JDWP_ObjectReference_DisableCollection\">disabled</a> "

make/data/publicsuffixlist/VERSION

@@ -1,2 +1,2 @@
-Github: https://raw.githubusercontent.com/publicsuffix/list/cbbba1d234670453df9c930dfbf510c0474d4301/public_suffix_list.dat
-Date: 2020-04-24
+Github: https://raw.githubusercontent.com/publicsuffix/list/3c213aab32b3c014f171b1673d4ce9b5cd72bf1c/public_suffix_list.dat
+Date: 2021-11-27

make/data/tzdata/VERSION

@@ -21,4 +21,4 @@
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
-tzdata2021a
+tzdata2022f

make/data/tzdata/africa

@@ -53,9 +53,6 @@
 # Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94.
 # https://www.jstor.org/stable/1774359
 #
-# A reliable and entertaining source about time zones is
-# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
-#
 # European-style abbreviations are commonly used along the Mediterranean.
 # For sub-Saharan Africa abbreviations were less standardized.
 # Previous editions of this database used WAT, CAT, SAT, and EAT
@@ -123,22 +120,6 @@ Zone	Africa/Algiers	0:12:12 -	LMT	1891 Mar 16
 			0:00	Algeria	WE%sT	1981 May
 			1:00	-	CET
 
-# Angola
-# Benin
-# See Africa/Lagos.
-
-# Botswana
-# See Africa/Maputo.
-
-# Burkina Faso
-# See Africa/Abidjan.
-
-# Burundi
-# See Africa/Maputo.
-
-# Cameroon
-# See Africa/Lagos.
-
 # Cape Verde / Cabo Verde
 #
 # From Paul Eggert (2018-02-16):
@@ -153,9 +134,6 @@ Zone Atlantic/Cape_Verde -1:34:04 -	LMT	1912 Jan 01  2:00u # Praia
 			-2:00	-	-02	1975 Nov 25  2:00
 			-1:00	-	-01
 
-# Central African Republic
-# See Africa/Lagos.
-
 # Chad
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Ndjamena	1:00:12 -	LMT	1912        # N'Djamena
@@ -163,38 +141,36 @@ Zone	Africa/Ndjamena	1:00:12 -	LMT	1912        # N'Djamena
 			1:00	1:00	WAST	1980 Mar  8
 			1:00	-	WAT
 
-# Comoros
-# See Africa/Nairobi.
+# Burkina Faso
+# Côte d'Ivoire (Ivory Coast)
+# The Gambia
+# Ghana
+# Guinea
+# Iceland
+# Mali
+# Mauritania
+# St Helena
+# Senegal
+# Sierra Leone
+# Togo
 
-# Democratic Republic of the Congo
-# See Africa/Lagos for the western part and Africa/Maputo for the eastern.
+# The other parts of the St Helena territory are similar:
+#	Tristan da Cunha: on GMT, say Whitman and the CIA
+#	Ascension: on GMT, say the USNO (1995-12-21) and the CIA
+#	Gough (scientific station since 1955; sealers wintered previously):
+#		on GMT, says the CIA
+#	Inaccessible, Nightingale: uninhabited
 
-# Republic of the Congo
-# See Africa/Lagos.
-
-# Côte d'Ivoire / Ivory Coast
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Abidjan	-0:16:08 -	LMT	1912
 			 0:00	-	GMT
-Link Africa/Abidjan Africa/Bamako	# Mali
-Link Africa/Abidjan Africa/Banjul	# Gambia
-Link Africa/Abidjan Africa/Conakry	# Guinea
-Link Africa/Abidjan Africa/Dakar	# Senegal
-Link Africa/Abidjan Africa/Freetown	# Sierra Leone
-Link Africa/Abidjan Africa/Lome		# Togo
-Link Africa/Abidjan Africa/Nouakchott	# Mauritania
-Link Africa/Abidjan Africa/Ouagadougou	# Burkina Faso
-Link Africa/Abidjan Atlantic/St_Helena	# St Helena
-
-# Djibouti
-# See Africa/Nairobi.
 
 ###############################################################################
 
 # Egypt
 
 # Milne says Cairo used 2:05:08.9, the local mean time of the Abbasizeh
-# observatory; round to nearest.  Milne also says that the official time for
+# observatory.  Milne also says that the official time for
 # Egypt was mean noon at the Great Pyramid, 2:04:30.5, but apparently this
 # did not apply to Cairo, Alexandria, or Port Said.
 
@@ -379,121 +355,10 @@ Rule	Egypt	2014	only	-	Jul	31	24:00	1:00	S
 Rule	Egypt	2014	only	-	Sep	lastThu	24:00	0	-
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
+		#STDOFF	2:05:08.9
 Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
 			2:00	Egypt	EE%sT
 
-# Equatorial Guinea
-# See Africa/Lagos.
-
-# Eritrea
-# See Africa/Nairobi.
-
-# Eswatini (formerly Swaziland)
-# See Africa/Johannesburg.
-
-# Ethiopia
-# See Africa/Nairobi.
-#
-# Unfortunately tzdb records only Western clock time in use in Ethiopia,
-# as the tzdb format is not up to properly recording a common Ethiopian
-# timekeeping practice that is based on solar time.  See:
-# Mortada D. If you have a meeting in Ethiopia, you'd better double
-# check the time. PRI's The World. 2015-01-30 15:15 -05.
-# https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
-
-# Gabon
-# See Africa/Lagos.
-
-# Gambia
-# See Africa/Abidjan.
-
-# Ghana
-
-# 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	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	1915 Nov  2
-			 0:00	Ghana	%s	1942 Feb  8
-			 0:30	-	+0030	1946 Jan  6
-			 0:00	Ghana	%s
-
-# Guinea
-# See Africa/Abidjan.
-
 # Guinea-Bissau
 #
 # From Paul Eggert (2018-02-16):
@@ -506,7 +371,16 @@ Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1  1:00u
 			-1:00	-	-01	1975
 			 0:00	-	GMT
 
+# Comoros
+# Djibouti
+# Eritrea
+# Ethiopia
 # Kenya
+# Madagascar
+# Mayotte
+# Somalia
+# Tanzania
+# Uganda
 
 # From P Chan (2020-10-24):
 #
@@ -517,7 +391,7 @@ Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1  1:00u
 # 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]
+# [Ordinance No. 11 of 1928, The Official 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,
@@ -549,6 +423,14 @@ Zone	Africa/Bissau	-1:02:20 -	LMT	1912 Jan  1  1:00u
 # The 1908-05-01 announcement does not give an effective date,
 # so just say "1908 May".
 
+# From Paul Eggert (2018-09-11):
+# Unfortunately tzdb records only Western clock time in use in Ethiopia,
+# as the tzdb format is not up to properly recording a common Ethiopian
+# timekeeping practice that is based on solar time.  See:
+# Mortada D. If you have a meeting in Ethiopia, you'd better double
+# check the time. PRI's The World. 2015-01-30 15:15 -05.
+# https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Nairobi	2:27:16	-	LMT	1908 May
 			2:30	-	+0230	1928 Jun 30 24:00
@@ -556,18 +438,6 @@ Zone	Africa/Nairobi	2:27:16	-	LMT	1908 May
 			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
-Link Africa/Nairobi Africa/Dar_es_Salaam # Tanzania
-Link Africa/Nairobi Africa/Djibouti
-Link Africa/Nairobi Africa/Kampala	 # Uganda
-Link Africa/Nairobi Africa/Mogadishu	 # Somalia
-Link Africa/Nairobi Indian/Antananarivo	 # Madagascar
-Link Africa/Nairobi Indian/Comoro
-Link Africa/Nairobi Indian/Mayotte
-
-# Lesotho
-# See Africa/Johannesburg.
 
 # Liberia
 #
@@ -648,16 +518,6 @@ Zone	Africa/Tripoli	0:52:44 -	LMT	1920
 			1:00	Libya	CE%sT	2013 Oct 25  2:00
 			2:00	-	EET
 
-# Madagascar
-# See Africa/Nairobi.
-
-# Malawi
-# See Africa/Maputo.
-
-# Mali
-# Mauritania
-# See Africa/Abidjan.
-
 # Mauritius
 
 # From Steffen Thorsen (2008-06-25):
@@ -751,12 +611,6 @@ Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
 # Agalega Is, Rodriguez
 # no information; probably like Indian/Mauritius
 
-# Mayotte
-# See Africa/Nairobi.
-
-# Morocco
-# See the 'europe' file for Spanish Morocco (Africa/Ceuta).
-
 # From Alex Krivenyshev (2008-05-09):
 # Here is an article that Morocco plan to introduce Daylight Saving Time between
 # 1 June, 2008 and 27 September, 2008.
@@ -1028,6 +882,10 @@ Zone Indian/Mauritius	3:50:00 -	LMT	1907 # Port Louis
 #         (car (cdr (cdr a))) (calendar-month-name (car a) t) (car (cdr a))
 #         (car (cdr (cdr b))) (calendar-month-name (car b) t) (car (cdr b)))))
 #     (setq islamic-year (+ 1 islamic-year))))
+#
+# From Milamber (2021-03-31, 2022-03-10), confirming these predictions:
+# https://www.mmsp.gov.ma/fr/actualites.aspx?id=2076
+# https://www.ecoactu.ma/horaires-administration-ramadan-gmtheure-gmt-a-partir-de-dimanche-27-mars/
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Morocco	1939	only	-	Sep	12	 0:00	1:00	-
@@ -1241,7 +1099,14 @@ Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan # El Aaiún
 			 0:00	Morocco	+00/+01	2018 Oct 28  3:00
 			 1:00	Morocco	+01/+00
 
+# Botswana
+# Burundi
+# Democratic Republic of the Congo (eastern)
+# Malawi
 # Mozambique
+# Rwanda
+# Zambia
+# Zimbabwe
 #
 # Shanks gives 1903-03-01 for the transition to CAT.
 # Perhaps the 1911-05-26 Portuguese decree
@@ -1251,14 +1116,6 @@ Zone Africa/El_Aaiun	-0:52:48 -	LMT	1934 Jan # El Aaiún
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Maputo	2:10:20 -	LMT	1903 Mar
 			2:00	-	CAT
-Link Africa/Maputo Africa/Blantyre	# Malawi
-Link Africa/Maputo Africa/Bujumbura	# Burundi
-Link Africa/Maputo Africa/Gaborone	# Botswana
-Link Africa/Maputo Africa/Harare	# Zimbabwe
-Link Africa/Maputo Africa/Kigali	# Rwanda
-Link Africa/Maputo Africa/Lubumbashi	# E Dem. Rep. of Congo
-Link Africa/Maputo Africa/Lusaka	# Zambia
-
 
 # Namibia
 
@@ -1337,9 +1194,16 @@ Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
 #			2:00	-	CAT
 # End of rearguard section.
 
-# Niger
-# See Africa/Lagos.
 
+# Angola
+# Benin
+# Cameroon
+# Central African Republic
+# Democratic Republic of the Congo (western)
+# Republic of the Congo
+# Equatorial Guinea
+# Gabon
+# Niger
 # Nigeria
 
 # From P Chan (2020-12-03):
@@ -1405,46 +1269,6 @@ Zone	Africa/Lagos	0:13:35 -	LMT	1905 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
-Link Africa/Lagos Africa/Douala	     # Cameroon
-Link Africa/Lagos Africa/Kinshasa    # Dem. Rep. of the Congo (west)
-Link Africa/Lagos Africa/Libreville  # Gabon
-Link Africa/Lagos Africa/Luanda	     # Angola
-Link Africa/Lagos Africa/Malabo	     # Equatorial Guinea
-Link Africa/Lagos Africa/Niamey	     # Niger
-Link Africa/Lagos Africa/Porto-Novo  # Benin
-
-# Réunion
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Indian/Reunion	3:41:52 -	LMT	1911 Jun # Saint-Denis
-			4:00	-	+04
-#
-# Crozet Islands also observes Réunion time; see the 'antarctica' file.
-#
-# Scattered Islands (Îles Éparses) administered from Réunion are as follows.
-# The following information about them is taken from
-# Îles Éparses (<http://www.outre-mer.gouv.fr/domtom/ile.htm>, 1997-07-22,
-# in French; no longer available as of 1999-08-17).
-# We have no info about their time zone histories.
-#
-# Bassas da India - uninhabited
-# Europa Island - inhabited from 1905 to 1910 by two families
-# Glorioso Is - inhabited until at least 1958
-# Juan de Nova - uninhabited
-# Tromelin - inhabited until at least 1958
-
-# Rwanda
-# See Africa/Maputo.
-
-# St Helena
-# See Africa/Abidjan.
-# The other parts of the St Helena territory are similar:
-#	Tristan da Cunha: on GMT, say Whitman and the CIA
-#	Ascension: on GMT, say the USNO (1995-12-21) and the CIA
-#	Gough (scientific station since 1955; sealers wintered previously):
-#		on GMT, says the CIA
-#	Inaccessible, Nightingale: uninhabited
 
 # São Tomé and Príncipe
 
@@ -1464,48 +1288,19 @@ Zone	Indian/Reunion	3:41:52 -	LMT	1911 Jun # Saint-Denis
 # From Michael Deckers (2018-12-30):
 # https://www.legis-palop.org/download.jsp?idFile=102818
 # ... [The legal time of the country, which coincides with universal
-# coordinated time, will be restituted at 2 o'clock on day 1 of January, 2019.]
+# coordinated time, will be reinstituted at 2 o'clock on day 1 of January, 2019.]
 
 Zone	Africa/Sao_Tome	 0:26:56 -	LMT	1884
+		#STDOFF	-0:36:44.68
 			-0:36:45 -	LMT	1912 Jan  1 00:00u # Lisbon MT
 			 0:00	-	GMT	2018 Jan  1 01:00
 			 1:00	-	WAT	2019 Jan  1 02:00
 			 0:00	-	GMT
 
-# Senegal
-# 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	1907 Jan  1 # Victoria
-			4:00	-	+04
-# From Paul Eggert (2001-05-30):
-# Aldabra, Farquhar, and Desroches, originally dependencies of the
-# Seychelles, were transferred to the British Indian Ocean Territory
-# in 1965 and returned to Seychelles control in 1976.  We don't know
-# whether this affected their time zone, so omit this for now.
-# Possibly the islands were uninhabited.
-
-# Sierra Leone
-# See Africa/Abidjan.
-
-# Somalia
-# See Africa/Nairobi.
-
+# Eswatini (Swaziland)
+# Lesotho
 # South Africa
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	SA	1942	1943	-	Sep	Sun>=15	2:00	1:00	-
 Rule	SA	1943	1944	-	Mar	Sun>=15	2:00	0	-
@@ -1513,8 +1308,6 @@ Rule	SA	1943	1944	-	Mar	Sun>=15	2:00	0	-
 Zone Africa/Johannesburg 1:52:00 -	LMT	1892 Feb 8
 			1:30	-	SAST	1903 Mar
 			2:00	SA	SAST
-Link Africa/Johannesburg Africa/Maseru	   # Lesotho
-Link Africa/Johannesburg Africa/Mbabane    # Eswatini
 #
 # Marion and Prince Edward Is
 # scientific station since 1947
@@ -1550,24 +1343,19 @@ Zone	Africa/Khartoum	2:10:08 -	LMT	1931
 			3:00	-	EAT	2017 Nov  1
 			2:00	-	CAT
 
+# South Sudan
+
 # 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	2021 Feb  1 00:00
 			2:00	-	CAT
 
-# Tanzania
-# See Africa/Nairobi.
-
-# Togo
-# See Africa/Abidjan.
-
 # Tunisia
 
 # From Gwillim Law (2005-04-30):
@@ -1660,15 +1448,8 @@ Rule	Tunisia	2005	only	-	Sep	30	 1:00s	0	-
 Rule	Tunisia	2006	2008	-	Mar	lastSun	 2:00s	1:00	S
 Rule	Tunisia	2006	2008	-	Oct	lastSun	 2:00s	0	-
 
-# See Europe/Paris for PMT-related transitions.
+# See Europe/Paris commentary for PMT-related transitions.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Africa/Tunis	0:40:44 -	LMT	1881 May 12
 			0:09:21	-	PMT	1911 Mar 11 # Paris Mean Time
 			1:00	Tunisia	CE%sT
-
-# Uganda
-# See Africa/Nairobi.
-
-# Zambia
-# Zimbabwe
-# See Africa/Maputo.

make/data/tzdata/antarctica

@@ -171,7 +171,7 @@ Zone Antarctica/Mawson	0	-	-00	1954 Feb 13
 #
 # Alfred Faure, Possession Island, Crozet Islands, -462551+0515152, since 1964;
 #	sealing & whaling stations operated variously 1802/1911+;
-#	see Indian/Reunion.
+#	see Asia/Dubai.
 #
 # Martin-de-Viviès, Amsterdam Island, -374105+0773155, since 1950
 # Port-aux-Français, Kerguelen Islands, -492110+0701303, since 1951;
@@ -180,22 +180,10 @@ Zone Antarctica/Mawson	0	-	-00	1954 Feb 13
 # St Paul Island - near Amsterdam, uninhabited
 #	fishing stations operated variously 1819/1931
 #
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Indian/Kerguelen	0	-	-00	1950 # Port-aux-Français
-			5:00	-	+05
+# Kerguelen - see Indian/Maldives.
 #
 # year-round base in the main continent
-# Dumont d'Urville, Île des Pétrels, -6640+14001, since 1956-11
-# <https://en.wikipedia.org/wiki/Dumont_d'Urville_Station> (2005-12-05)
-#
-# Another base at Port-Martin, 50km east, began operation in 1947.
-# It was destroyed by fire on 1952-01-14.
-#
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Antarctica/DumontDUrville 0 -	-00	1947
-			10:00	-	+10	1952 Jan 14
-			0	-	-00	1956 Nov
-			10:00	-	+10
+# Dumont d'Urville - see Pacific/Port_Moresby.
 
 # France & Italy - year-round base
 # Concordia, -750600+1232000, since 2005
@@ -211,20 +199,7 @@ Zone Antarctica/DumontDUrville 0 -	-00	1947
 # Zuchelli, Terra Nova Bay, -744140+1640647, since 1986
 
 # Japan - year-round bases
-# Syowa (also known as Showa), -690022+0393524, since 1957
-#
-# From Hideyuki Suzuki (1999-02-06):
-# In all Japanese stations, +0300 is used as the standard time.
-#
-# Syowa station, which is the first antarctic station of Japan,
-# was established on 1957-01-29.  Since Syowa station is still the main
-# station of Japan, it's appropriate for the principal location.
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Antarctica/Syowa	0	-	-00	1957 Jan 29
-			3:00	-	+03
-# See:
-# NIPR Antarctic Research Activities (1999-08-17)
-# http://www.nipr.ac.jp/english/ara01.html
+# See Asia/Riyadh.
 
 # S Korea - year-round base
 # Jang Bogo, Terra Nova Bay, -743700+1641205 since 2014
@@ -288,31 +263,7 @@ Zone Antarctica/Troll	0	-	-00	2005 Feb 12
 #	year-round from 1960/61 to 1992
 
 # Vostok, since 1957-12-16, temporarily closed 1994-02/1994-11
-# From Craig Mundell (1994-12-15):
-# http://quest.arc.nasa.gov/antarctica/QA/computers/Directions,Time,ZIP
-# Vostok, which is one of the Russian stations, is set on the same
-# time as Moscow, Russia.
-#
-# From Lee Hotz (2001-03-08):
-# I queried the folks at Columbia who spent the summer at Vostok and this is
-# what they had to say about time there:
-# "in the US Camp (East Camp) we have been on New Zealand (McMurdo)
-# time, which is 12 hours ahead of GMT. The Russian Station Vostok was
-# 6 hours behind that (although only 2 miles away, i.e. 6 hours ahead
-# of GMT). This is a time zone I think two hours east of Moscow. The
-# natural time zone is in between the two: 8 hours ahead of GMT."
-#
-# From Paul Eggert (2001-05-04):
-# This seems to be hopelessly confusing, so I asked Lee Hotz about it
-# in person.  He said that some Antarctic locations set their local
-# time so that noon is the warmest part of the day, and that this
-# changes during the year and does not necessarily correspond to mean
-# solar noon.  So the Vostok time might have been whatever the clocks
-# happened to be during their visit.  So we still don't really know what time
-# it is at Vostok.  But we'll guess +06.
-#
-Zone Antarctica/Vostok	0	-	-00	1957 Dec 16
-			6:00	-	+06
+# See Asia/Urumqi.
 
 # S Africa - year-round bases
 # Marion Island, -4653+03752
@@ -378,4 +329,4 @@ Zone Antarctica/Rothera	0	-	-00	1976 Dec  1
 # we have to go around and set them back 5 minutes or so.
 # Maybe if we let them run fast all of the time, we'd get to leave here sooner!!
 #
-# See 'australasia' for Antarctica/McMurdo.
+# See Pacific/Auckland.

make/data/tzdata/asia

@@ -57,9 +57,6 @@
 # Byalokoz EL. New Counting of Time in Russia since July 1, 1919.
 # (See the 'europe' file for a fuller citation.)
 #
-# A reliable and entertaining source about time zones is
-# Derek Howse, Greenwich time and longitude, Philip Wilson Publishers (1997).
-#
 # The following alphabetic abbreviations appear in these tables
 # (corrections are welcome):
 #	     std  dst
@@ -175,9 +172,6 @@ Zone	Asia/Baku	3:19:24 -	LMT	1924 May  2
 			4:00	EUAsia	+04/+05	1997
 			4:00	Azer	+04/+05
 
-# Bahrain
-# See Asia/Qatar.
-
 # Bangladesh
 # From Alexander Krivenyshev (2009-05-13):
 # According to newspaper Asian Tribune (May 6, 2009) Bangladesh may introduce
@@ -280,13 +274,8 @@ Zone	Indian/Chagos	4:49:40	-	LMT	1907
 			5:00	-	+05	1996
 			6:00	-	+06
 
-# Brunei
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Brunei	7:39:40 -	LMT	1926 Mar # Bandar Seri Begawan
-			7:30	-	+0730	1933
-			8:00	-	+08
-
-# Burma / Myanmar
+# Cocos (Keeling) Islands
+# Myanmar (Burma)
 
 # Milne says 6:24:40 was the meridian of the time ball observatory at Rangoon.
 
@@ -303,10 +292,6 @@ Zone	Asia/Yangon	6:24:47 -	LMT	1880        # or Rangoon
 			9:00	-	+09	1945 May  3
 			6:30	-	+0630
 
-# Cambodia
-# See Asia/Bangkok.
-
-
 # China
 
 # From Phake Nick (2020-04-15):
@@ -370,12 +355,9 @@ Rule	Shang	1919	only	-	Sep	30	24:00	0	S
 # in the city at the time for people who use different time standard to adjust
 # their clock to their preferred time.
 #
-# a. For the 1940 May 31 spring forward, the essay claim that it was
-# coordinared between the international settlement authority and the French
-# concession authority and have gathered support from Hong Kong and Xiamen,
-# that it would spring forward an hour from May 31 "midnight", and the essay
-# claim "Hong Kong government implemented the spring forward in the same time
-# on the same date as Shanghai".
+# a. For the 1940 May 31 spring forward, the essay [says] ... "Hong
+# Kong government implemented the spring forward in the same time on
+# the same date as Shanghai".
 #
 # b. For the 1940 fall back, it was said that they initially intended to do
 # so on September 30 00:59 at night, however they postponed it to October 12
@@ -571,7 +553,7 @@ Rule	PRC	1987	1991	-	Apr	Sun>=11	 2:00	1:00	D
 # Zhongyuan Time ("Central plain Time") UT +08
 # Now part of Asia/Shanghai.
 # most of China
-# Milne gives 8:05:43.2 for Xujiahui Observatory time; round to nearest.
+# Milne gives 8:05:43.2 for Xujiahui Observatory time....
 # Guo says Shanghai switched to UT +08 "from the end of the 19th century".
 #
 # Long-shu Time (probably as Long and Shu were two names of the area) UT +07
@@ -690,18 +672,19 @@ Rule	PRC	1987	1991	-	Apr	Sun>=11	 2:00	1:00	D
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 # Beijing time, used throughout China; represented by Shanghai.
+		#STDOFF	8:05:43.2
 Zone	Asia/Shanghai	8:05:43	-	LMT	1901
 			8:00	Shang	C%sT	1949 May 28
 			8:00	PRC	C%sT
 # Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
 # / Wulumuqi.  (Please use Asia/Shanghai if you prefer Beijing time.)
+# Vostok base in Antarctica matches this since 1970.
 Zone	Asia/Urumqi	5:50:20	-	LMT	1928
 			6:00	-	+06
 
-
 # Hong Kong
 
-# Milne gives 7:36:41.7; round this.
+# Milne gives 7:36:41.7.
 
 # From Lee Yiu Chung (2009-10-24):
 # I found there are some mistakes for the...DST rule for Hong
@@ -885,7 +868,8 @@ Rule	HK	1973	only	-	Dec	30	3:30	1:00	S
 Rule	HK	1979	only	-	May	13	3:30	1:00	S
 Rule	HK	1979	only	-	Oct	21	3:30	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Asia/Hong_Kong	7:36:42 -	LMT	1904 Oct 30  0:36:42
+		#STDOFF	7:36:41.7
+Zone	Asia/Hong_Kong	7:36:42 -	LMT	1904 Oct 29 17:00u
 			8:00	-	HKT	1941 Jun 15  3:00
 			8:00	1:00	HKST	1941 Oct  1  4:00
 			8:00	0:30	HKWT	1941 Dec 25
@@ -1200,10 +1184,6 @@ Zone	Asia/Famagusta	2:15:48	-	LMT	1921 Nov 14
 			3:00	-	+03	2017 Oct 29 1:00u
 			2:00	EUAsia	EE%sT
 
-# Classically, Cyprus belongs to Asia; e.g. see Herodotus, Histories, I.72.
-# However, for various reasons many users expect to find it under Europe.
-Link	Asia/Nicosia	Europe/Nicosia
-
 # Georgia
 # From Paul Eggert (1994-11-19):
 # Today's _Economist_ (p 60) reports that Georgia moved its clocks forward
@@ -1360,7 +1340,7 @@ Zone	Asia/Kolkata	5:53:28 -	LMT	1854 Jun 28 # Kolkata
 #
 # From Paul Eggert (2014-09-06):
 # The 1876 Report of the Secretary of the [US] Navy, p 306 says that Batavia
-# civil time was 7:07:12.5; round to even for Jakarta.
+# civil time was 7:07:12.5.
 #
 # From Gwillim Law (2001-05-28), overriding Shanks & Pottenger:
 # http://www.sumatera-inc.com/go_to_invest/about_indonesia.asp#standtime
@@ -1396,10 +1376,11 @@ Zone	Asia/Kolkata	5:53:28 -	LMT	1854 Jun 28 # Kolkata
 #
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 # Java, Sumatra
+		#STDOFF	7:07:12.5
 Zone Asia/Jakarta	7:07:12 -	LMT	1867 Aug 10
 # Shanks & Pottenger say the next transition was at 1924 Jan 1 0:13,
 # but this must be a typo.
-			7:07:12	-	BMT	1923 Dec 31 23:47:12 # Batavia
+			7:07:12	-	BMT	1923 Dec 31 16:40u # Batavia
 			7:20	-	+0720	1932 Nov
 			7:30	-	+0730	1942 Mar 23
 			9:00	-	+09	1945 Sep 23
@@ -1431,6 +1412,111 @@ Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
 
 # Iran
 
+# From Roozbeh Pournader (2022-05-30):
+# Here's an order from the Cabinet to the rest of the government to switch to
+# Tehran time, which is mentioned to be already at +03:30:
+# https://qavanin.ir/Law/TreeText/180138
+# Just in case that goes away, I also saved a copy at archive.org:
+# https://web.archive.org/web/20220530111940/https://qavanin.ir/Law/TreeText/180138
+# Here's my translation:
+#
+# "Circular on Matching the Hours of Governmental and Official Circles
+# in Provinces
+# Approved 1314/03/22 [=1935-06-13]
+# According to the ruling of the Honorable Cabinet, it is ordered that from
+# now on in all internal provinces of the country, governmental and official
+# circles set their time to match Tehran time (three hours and half before
+# Greenwich)....
+#
+# I still haven't found out when Tehran itself switched to +03:30....
+#
+# From Paul Eggert (2022-06-05):
+# Although the above says Tehran was at +03:30 before 1935-06-13, we don't
+# know when it switched to +03:30.  For now, use 1935-06-13 as the switch date.
+# Although most likely wrong, we have no better info.
+
+# From Roozbeh Pournader (2022-06-01):
+# This is from Kayhan newspaper, one of the major Iranian newspapers, from
+# March 20, 1978, page 2:
+#
+# "Pull the clocks 60 minutes forward
+# As we informed before, from the fourth day of the month Farvardin of the
+# new year [=1978-03-24], clocks will be pulled forward, and people's daily
+# work and life program will start one hour earlier than the current program.
+# On the 1st day of the month Farvardin of this year [=1977-03-21], they had
+# pulled the clocks forward by one hour, but in the month of Mehr
+# [=1977-09-23], the clocks were pulled back by 30 minutes.
+# In this way, from the 4th day of the month Farvardin, clocks will be ahead
+# of the previous years by one hour and a half.
+# According to the new program, during the night of 4th of Farvardin, when
+# the midnight, meaning 24 o'clock is announced, the hands of the clock must
+# be pulled forward by one hour and thus consider midnight 1 o'clock in the
+# forenoon."
+#
+# This implies that in September 1977, when the daylight savings time was
+# done with, Iran didn't go back to +03:30, but immediately to +04:00.
+#
+#
+# This is from the major Iranian newspaper Ettela'at, dated [1978-08-03]...,
+# page 32. It looks like they decided to get the clocks back to +4:00
+# just in time for Ramadan that year:
+#
+# "Tomorrow Night, Pull the Clocks Back by One Hour
+# At 1 o'clock in the forenoon of Saturday 14 Mordad [=1978-08-05], the
+# clocks will be pulled one hour back and instead of 1 o'clock in the
+# forenoon, Radio Iran will announce 24 o'clock.
+# This decision was made in the Cabinet of Ministers meeting of 25 Tir
+# [=1978-07-16], [...]
+# At the beginning of the year 2537 [=March 1978: Iran was using a different
+# year number for a few years then, based on the Coronation of Cyrus the
+# Great], the country's official time was pulled forward by one hour and now
+# the official time is one hour and a half ahead compared to last year,
+# because in Farvardin of last year [=March 1977], the official time was
+# pulled forward one hour and this continued until the second half of last
+# year [=September 1977] until in the second half of last year the official
+# time was pulled back half an hour and that half hour still remains."
+#
+# This matches the time of the true noon published in the newspapers, as they
+# clearly go from +05:00 to +04:00 after that date (which happened during a
+# long weekend in Iran).
+
+# From Roozbeh Pournader (2022-05-31):
+# [Movahedi S. Cultural preconceptions of time: Can we use operational time
+# to meddle in God's Time? Comp Stud Soc Hist. 1985;27(3):385-400]
+# https://www.jstor.org/stable/178704
+# Here's the quotes from the paper:
+# 1. '"Iran's official time keeper moved the clock one hour forward as from
+# March 22, 1977 (Farvardin 2, 2536) to make maximum use of daylight and save
+# in energy consumption. Thus Iran joined such other countries as Britain in
+# observing what is known as 'daylight saving.' The proposal was originally
+# put forward by the Ministry of Energy, in no way having any influence on
+# observing religious ceremonies. Moving time one hour forward in summer
+# means that at 11:00 o'clock on March 21, the official time was set as
+# midnight March 22. Then September 24 will actually begin one hour later
+# than the end of September 23 [...]." Iran's time base thus continued to be
+# Greenwich Mean Time plus three and one-half hours (plus four and one-half
+# hours in summer).'
+#
+# The article sources this from Iran Almanac and Book of Facts, 1977, Tehran:
+# Echo of Iran, which is on Google Books at
+# https://www.google.com/books/edition/Iran_Almanac_and_Book_of_Facts/9ybVAAAAMAAJ.
+# (I confirmed it by searching for snippets.)
+#
+# 2. "After the fall of the shah, the revolutionary government returned to
+# daylight-saving time (DST) on 26 May 1979."
+#
+# This seems to have been announced just one day in advance, on 25 May 1979.
+#
+# The change in 1977 clearly seems to be the first daylight savings effort in
+# Iran. But the article doesn't mention what happened in 1978 (which was
+# still during the shah's government), or how things continued in 1979
+# onwards (which was during the Islamic Republic).
+
+# From Francis Santoni (2022-06-01):
+# for Iran and 1977 the effective change is only 20 October
+# (UIT No. 143 17.XI.1977) and not 23 September (UIT No. 141 13.IX.1977).
+# UIT is the Operational Bulletin of International Telecommunication Union.
+
 # From Roozbeh Pournader (2003-03-15):
 # This is an English translation of what I just found (originally in Persian).
 # The Gregorian dates in brackets are mine:
@@ -1465,65 +1551,12 @@ Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
 # leap year calculation involved.  There has never been any serious
 # plan to change that law....
 #
-# From Paul Eggert (2018-11-30):
-# Go with Shanks & Pottenger before Sept. 1991, and with Pournader thereafter.
-# I used the following code in GNU Emacs 26.1 to generate the "Rule Iran"
-# lines from 2008 through 2087.  Emacs 26.1 uses Ed Reingold's
-# cal-persia implementation of Birashk's approximation, which in the
-# 2008-2087 range disagrees with the astronomical Persian calendar
-# for Persian years 1404 (Gregorian 2025) and 1437 (Gregorian 2058), so
-# the following code special-cases those years.  See Table 15.1, page 264, of:
-# Edward M. Reingold and Nachum Dershowitz, Calendrical Calculations:
-# The Ultimate Edition, Cambridge University Press (2018).
-# https://www.cambridge.org/fr/academic/subjects/computer-science/computing-general-interest/calendrical-calculations-ultimate-edition-4th-edition
-# Page 258, footnote 2, of this book says there is some dispute over what will
-# happen in 2091 (and some other years after that), so this code
-# stops in 2087, as 2088 and 2089 agree with the "max" rule below.
-# (cl-loop
-#  initially (require 'cal-persia)
-#  with first-persian-year = 1387
-#  with last-persian-year = 1466
-#  ;; Exceptional years in the above range,
-#  ;; from Reingold & Dershowitz Table 15.1, page 264:
-#  with exceptional-persian-years = '(1404 1437)
-#  with range-start = nil
-#  for persian-year from first-persian-year to last-persian-year
-#  do
-#  (let*
-#      ((exceptional-year-offset
-#        (if (member persian-year exceptional-persian-years) 1 0))
-#       (beg-dst-absolute
-#        (+ (calendar-persian-to-absolute (list 1 1 persian-year))
-#           exceptional-year-offset))
-#       (end-dst-absolute
-#        (+ (calendar-persian-to-absolute (list 6 30 persian-year))
-#           exceptional-year-offset))
-#       (next-year-beg-dst-absolute
-#        (+ (calendar-persian-to-absolute (list 1 1 (1+ persian-year)))
-#           (if (member (1+ persian-year) exceptional-persian-years) 1 0)))
-#       (beg-dst (calendar-gregorian-from-absolute beg-dst-absolute))
-#       (end-dst (calendar-gregorian-from-absolute end-dst-absolute))
-#       (next-year-beg-dst (calendar-gregorian-from-absolute
-#                           next-year-beg-dst-absolute))
-#       (year (calendar-extract-year beg-dst))
-#       (range-end (if range-start year "only")))
-#    (setq range-start (or range-start year))
-#    (when (or (/= (calendar-extract-day beg-dst)
-#                  (calendar-extract-day next-year-beg-dst))
-#              (= persian-year last-persian-year))
-#      (insert
-#       (format
-#        "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t1:00\t-\n"
-#        range-start range-end
-#        (calendar-month-name (calendar-extract-month beg-dst) t)
-#        (calendar-extract-day beg-dst)))
-#      (insert
-#       (format
-#        "Rule\tIran\t%d\t%s\t-\t%s\t%2d\t24:00\t0\t-\n"
-#        range-start range-end
-#        (calendar-month-name (calendar-extract-month end-dst) t)
-#        (calendar-extract-day end-dst)))
-#      (setq range-start nil))))
+# From Paul Eggert (2022-06-30):
+# Go with Pournader for 1935 through spring 1979, and for timestamps
+# after August 1991; go with with Shanks & Pottenger for other timestamps.
+# Go with Santoni's citation of the UIT for fall 1977, as 20 October 1977
+# is 28 Mehr 1356, consistent with the "Mehr" in Pournader's source.
+# Assume that the UIT's "1930" is UTC, i.e., 24:00 local time.
 #
 # From Oscar van Vlijmen (2005-03-30), writing about future
 # discrepancies between cal-persia and the Iranian calendar:
@@ -1557,10 +1590,23 @@ Zone Asia/Jayapura	9:22:48 -	LMT	1932 Nov
 # be changed back to its previous state on the 24 hours of the
 # thirtieth day of Shahrivar.
 #
+# From Ali Mirjamali (2022-05-10):
+# Official IR News Agency announcement: irna.ir/xjJ3TT
+# ...
+# Highlights: DST will be cancelled for the next Iranian year 1402
+# (i.e 2023-March-21) and forthcoming years.
+#
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Iran	1978	1980	-	Mar	20	24:00	1:00	-
-Rule	Iran	1978	only	-	Oct	20	24:00	0	-
+# Work around a bug in zic 2022a and earlier.
+Rule	Iran	1910	only	-	Jan	 1	00:00	0	-
+#
+Rule	Iran	1977	only	-	Mar	21	23:00	1:00	-
+Rule	Iran	1977	only	-	Oct	20	24:00	0	-
+Rule	Iran	1978	only	-	Mar	24	24:00	1:00	-
+Rule	Iran	1978	only	-	Aug	 5	01:00	0	-
+Rule	Iran	1979	only	-	May	26	24:00	1:00	-
 Rule	Iran	1979	only	-	Sep	18	24:00	0	-
+Rule	Iran	1980	only	-	Mar	20	24:00	1:00	-
 Rule	Iran	1980	only	-	Sep	22	24:00	0	-
 Rule	Iran	1991	only	-	May	 2	24:00	1:00	-
 Rule	Iran	1992	1995	-	Mar	21	24:00	1:00	-
@@ -1591,85 +1637,13 @@ Rule	Iran	2017	2019	-	Mar	21	24:00	1:00	-
 Rule	Iran	2017	2019	-	Sep	21	24:00	0	-
 Rule	Iran	2020	only	-	Mar	20	24:00	1:00	-
 Rule	Iran	2020	only	-	Sep	20	24:00	0	-
-Rule	Iran	2021	2023	-	Mar	21	24:00	1:00	-
-Rule	Iran	2021	2023	-	Sep	21	24:00	0	-
-Rule	Iran	2024	only	-	Mar	20	24:00	1:00	-
-Rule	Iran	2024	only	-	Sep	20	24:00	0	-
-Rule	Iran	2025	2027	-	Mar	21	24:00	1:00	-
-Rule	Iran	2025	2027	-	Sep	21	24:00	0	-
-Rule	Iran	2028	2029	-	Mar	20	24:00	1:00	-
-Rule	Iran	2028	2029	-	Sep	20	24:00	0	-
-Rule	Iran	2030	2031	-	Mar	21	24:00	1:00	-
-Rule	Iran	2030	2031	-	Sep	21	24:00	0	-
-Rule	Iran	2032	2033	-	Mar	20	24:00	1:00	-
-Rule	Iran	2032	2033	-	Sep	20	24:00	0	-
-Rule	Iran	2034	2035	-	Mar	21	24:00	1:00	-
-Rule	Iran	2034	2035	-	Sep	21	24:00	0	-
-Rule	Iran	2036	2037	-	Mar	20	24:00	1:00	-
-Rule	Iran	2036	2037	-	Sep	20	24:00	0	-
-Rule	Iran	2038	2039	-	Mar	21	24:00	1:00	-
-Rule	Iran	2038	2039	-	Sep	21	24:00	0	-
-Rule	Iran	2040	2041	-	Mar	20	24:00	1:00	-
-Rule	Iran	2040	2041	-	Sep	20	24:00	0	-
-Rule	Iran	2042	2043	-	Mar	21	24:00	1:00	-
-Rule	Iran	2042	2043	-	Sep	21	24:00	0	-
-Rule	Iran	2044	2045	-	Mar	20	24:00	1:00	-
-Rule	Iran	2044	2045	-	Sep	20	24:00	0	-
-Rule	Iran	2046	2047	-	Mar	21	24:00	1:00	-
-Rule	Iran	2046	2047	-	Sep	21	24:00	0	-
-Rule	Iran	2048	2049	-	Mar	20	24:00	1:00	-
-Rule	Iran	2048	2049	-	Sep	20	24:00	0	-
-Rule	Iran	2050	2051	-	Mar	21	24:00	1:00	-
-Rule	Iran	2050	2051	-	Sep	21	24:00	0	-
-Rule	Iran	2052	2053	-	Mar	20	24:00	1:00	-
-Rule	Iran	2052	2053	-	Sep	20	24:00	0	-
-Rule	Iran	2054	2055	-	Mar	21	24:00	1:00	-
-Rule	Iran	2054	2055	-	Sep	21	24:00	0	-
-Rule	Iran	2056	2057	-	Mar	20	24:00	1:00	-
-Rule	Iran	2056	2057	-	Sep	20	24:00	0	-
-Rule	Iran	2058	2059	-	Mar	21	24:00	1:00	-
-Rule	Iran	2058	2059	-	Sep	21	24:00	0	-
-Rule	Iran	2060	2062	-	Mar	20	24:00	1:00	-
-Rule	Iran	2060	2062	-	Sep	20	24:00	0	-
-Rule	Iran	2063	only	-	Mar	21	24:00	1:00	-
-Rule	Iran	2063	only	-	Sep	21	24:00	0	-
-Rule	Iran	2064	2066	-	Mar	20	24:00	1:00	-
-Rule	Iran	2064	2066	-	Sep	20	24:00	0	-
-Rule	Iran	2067	only	-	Mar	21	24:00	1:00	-
-Rule	Iran	2067	only	-	Sep	21	24:00	0	-
-Rule	Iran	2068	2070	-	Mar	20	24:00	1:00	-
-Rule	Iran	2068	2070	-	Sep	20	24:00	0	-
-Rule	Iran	2071	only	-	Mar	21	24:00	1:00	-
-Rule	Iran	2071	only	-	Sep	21	24:00	0	-
-Rule	Iran	2072	2074	-	Mar	20	24:00	1:00	-
-Rule	Iran	2072	2074	-	Sep	20	24:00	0	-
-Rule	Iran	2075	only	-	Mar	21	24:00	1:00	-
-Rule	Iran	2075	only	-	Sep	21	24:00	0	-
-Rule	Iran	2076	2078	-	Mar	20	24:00	1:00	-
-Rule	Iran	2076	2078	-	Sep	20	24:00	0	-
-Rule	Iran	2079	only	-	Mar	21	24:00	1:00	-
-Rule	Iran	2079	only	-	Sep	21	24:00	0	-
-Rule	Iran	2080	2082	-	Mar	20	24:00	1:00	-
-Rule	Iran	2080	2082	-	Sep	20	24:00	0	-
-Rule	Iran	2083	only	-	Mar	21	24:00	1:00	-
-Rule	Iran	2083	only	-	Sep	21	24:00	0	-
-Rule	Iran	2084	2086	-	Mar	20	24:00	1:00	-
-Rule	Iran	2084	2086	-	Sep	20	24:00	0	-
-Rule	Iran	2087	only	-	Mar	21	24:00	1:00	-
-Rule	Iran	2087	only	-	Sep	21	24:00	0	-
-#
-# The following rules are approximations starting in the year 2088.
-# These are the best post-2088 approximations available, given the
-# restrictions of a single rule using ordinary Gregorian dates.
-# At some point this table will need to be extended, though quite
-# possibly Iran will change the rules first.
-Rule	Iran	2088	max	-	Mar	20	24:00	1:00	-
-Rule	Iran	2088	max	-	Sep	20	24:00	0	-
+Rule	Iran	2021	2022	-	Mar	21	24:00	1:00	-
+Rule	Iran	2021	2022	-	Sep	21	24:00	0	-
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Tehran	3:25:44	-	LMT	1916
-			3:25:44	-	TMT	1946     # Tehran Mean Time
-			3:30	-	+0330	1977 Nov
+			3:25:44	-	TMT	1935 Jun 13 # Tehran Mean Time
+			3:30	Iran	+0330/+0430 1977 Oct 20 24:00
 			4:00	Iran	+04/+05	1979
 			3:30	Iran	+0330/+0430
 
@@ -2257,6 +2231,25 @@ Zone	Asia/Tokyo	9:18:59	-	LMT	1887 Dec 31 15:00u
 # From Paul Eggert (2013-12-11):
 # As Steffen suggested, consider the past 21-month experiment to be DST.
 
+# From Steffen Thorsen (2021-09-24):
+# The Jordanian Government announced yesterday that they will start DST
+# in February instead of March:
+# https://petra.gov.jo/Include/InnerPage.jsp?ID=37683&lang=en&name=en_news (English)
+# https://petra.gov.jo/Include/InnerPage.jsp?ID=189969&lang=ar&name=news (Arabic)
+# From the Arabic version, it seems to say it would be at midnight
+# (assume 24:00) on the last Thursday in February, starting from 2022.
+
+# From Issam Al-Zuwairi (2022-10-05):
+# The Council of Ministers in Jordan decided Wednesday 5th October 2022,
+# that daylight saving time (DST) will be throughout the year....
+#
+# From Brian Inglis (2022-10-06):
+# https://petra.gov.jo/Include/InnerPage.jsp?ID=45567&lang=en&name=en_news
+#
+# From Paul Eggert (2022-10-05):
+# Like Syria, model this as a transition from EEST +03 (DST) to plain +03
+# (non-DST) at the point where DST would otherwise have ended.
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Jordan	1973	only	-	Jun	6	0:00	1:00	S
 Rule	Jordan	1973	1975	-	Oct	1	0:00	0	-
@@ -2287,11 +2280,13 @@ Rule	Jordan	2004	only	-	Oct	15	0:00s	0	-
 Rule	Jordan	2005	only	-	Sep	lastFri	0:00s	0	-
 Rule	Jordan	2006	2011	-	Oct	lastFri	0:00s	0	-
 Rule	Jordan	2013	only	-	Dec	20	0:00	0	-
-Rule	Jordan	2014	max	-	Mar	lastThu	24:00	1:00	S
-Rule	Jordan	2014	max	-	Oct	lastFri	0:00s	0	-
+Rule	Jordan	2014	2021	-	Mar	lastThu	24:00	1:00	S
+Rule	Jordan	2014	2022	-	Oct	lastFri	0:00s	0	-
+Rule	Jordan	2022	only	-	Feb	lastThu	24:00	1:00	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Amman	2:23:44 -	LMT	1931
-			2:00	Jordan	EE%sT
+			2:00	Jordan	EE%sT	2022 Oct 28 0:00s
+			3:00	-	+03
 
 
 # Kazakhstan
@@ -2482,9 +2477,9 @@ Zone	Asia/Amman	2:23:44 -	LMT	1931
 # the third time belt (before 1930 this means +03).
 
 # From Alexander Konzurovski (2018-12-20):
-# Qyzyolrda Region (Asia/Qyzylorda) is changing its time zone from
-# UTC+6 to UTC+5 effective December 21st, 2018. The legal document is
-# located here: http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
+# (Asia/Qyzylorda) is changing its time zone from UTC+6 to UTC+5
+# effective December 21st, 2018....
+# http://adilet.zan.kz/rus/docs/P1800000817 (russian language).
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 #
@@ -2717,14 +2712,6 @@ Zone	Asia/Pyongyang	8:23:00 -	LMT	1908 Apr  1
 			8:30	-	KST	2018 May  4 23:30
 			9:00	-	KST
 
-###############################################################################
-
-# Kuwait
-# See Asia/Riyadh.
-
-# Laos
-# See Asia/Bangkok.
-
 
 # Lebanon
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
@@ -2756,24 +2743,15 @@ Rule	Lebanon	1999	max	-	Oct	lastSun	0:00	0	-
 Zone	Asia/Beirut	2:22:00 -	LMT	1880
 			2:00	Lebanon	EE%sT
 
-# Malaysia
+# Brunei
+# Malaysia (eastern)
+#
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	NBorneo	1935	1941	-	Sep	14	0:00	0:20	-
 Rule	NBorneo	1935	1941	-	Dec	14	0:00	0	-
 #
-# peninsular Malaysia
-# taken from Mok Ly Yng (2003-10-30)
-# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Asia/Kuala_Lumpur	6:46:46 -	LMT	1901 Jan  1
-			6:55:25	-	SMT	1905 Jun  1 # Singapore M.T.
-			7:00	-	+07	1933 Jan  1
-			7:00	0:20	+0720	1936 Jan  1
-			7:20	-	+0720	1941 Sep  1
-			7:30	-	+0730	1942 Feb 16
-			9:00	-	+09	1945 Sep 12
-			7:30	-	+0730	1982 Jan  1
-			8:00	-	+08
+# For peninsular Malaysia see Asia/Singapore.
+#
 # Sabah & Sarawak
 # From Paul Eggert (2014-08-12):
 # The data entries here are mostly from Shanks & Pottenger, but the 1942, 1945
@@ -2952,9 +2930,6 @@ Zone	Asia/Kathmandu	5:41:16 -	LMT	1920
 			5:30	-	+0530	1986
 			5:45	-	+0545
 
-# Oman
-# See Asia/Dubai.
-
 # Pakistan
 
 # From Rives McDow (2002-03-13):
@@ -3402,11 +3377,6 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 # shall [end] on Oct 24th 2020 at 01:00AM by delaying the clock by 60 minutes.
 # http://www.palestinecabinet.gov.ps/portal/Meeting/Details/51584
 
-# From Tim Parenti (2020-10-20):
-# Predict future fall transitions at 01:00 on the Saturday preceding October's
-# last Sunday (i.e., Sat>=24).  This is consistent with our predictions since
-# 2016, although the time of the change differed slightly in 2019.
-
 # From Pierre Cashon (2020-10-20):
 # The summer time this year started on March 28 at 00:00.
 # https://wafa.ps/ar_page.aspx?id=GveQNZa872839351758aGveQNZ
@@ -3414,10 +3384,33 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 # The winter time in 2015 started on October 23 at 01:00.
 # https://wafa.ps/ar_page.aspx?id=CgpCdYa670694628582aCgpCdY
 # http://www.palestinecabinet.gov.ps/portal/meeting/details/27583
+
+# From P Chan (2021-10-18):
+# http://wafa.ps/Pages/Details/34701
+# Palestine winter time will start from midnight 2021-10-29 (Thursday-Friday).
 #
-# From Paul Eggert (2019-04-10):
-# For now, guess spring-ahead transitions are at 00:00 on the Saturday
-# preceding March's last Sunday (i.e., Sat>=24).
+# From Heba Hemad, Palestine Ministry of Telecom & IT (2021-10-20):
+# ... winter time will begin in Palestine from Friday 10-29, 01:00 AM
+# by 60 minutes backwards.
+#
+# From Tim Parenti (2021-10-25), per Paul Eggert (2021-10-24):
+# Guess future fall transitions at 01:00 on the Friday preceding October's
+# last Sunday (i.e., Fri>=23), as this is more consistent with recent practice.
+
+# From Heba Hamad (2022-03-10):
+# summer time will begin in Palestine from Sunday 03-27-2022, 00:00 AM.
+
+# From Heba Hamad (2022-08-30):
+# winter time will begin in Palestine from Saturday 10-29, 02:00 AM by
+# 60 minutes backwards.  Also the state of Palestine adopted the summer
+# and winter time for the years: 2023,2024,2025,2026 ...
+# https://mm.icann.org/pipermail/tz/attachments/20220830/9f024566/Time-0001.pdf
+# (2022-08-31): ... the Saturday before the last Sunday in March and October
+# at 2:00 AM ,for the years from 2023 to 2026.
+# (2022-09-05): https://mtit.pna.ps/Site/New/1453
+#
+# From Paul Eggert (2022-08-31):
+# For now, assume that this rule will also be used after 2026.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule EgyptAsia	1957	only	-	May	10	0:00	1:00	S
@@ -3449,12 +3442,16 @@ Rule Palestine	2013	only	-	Sep	27	0:00	0	-
 Rule Palestine	2014	only	-	Oct	24	0:00	0	-
 Rule Palestine	2015	only	-	Mar	28	0:00	1:00	S
 Rule Palestine	2015	only	-	Oct	23	1:00	0	-
-Rule Palestine	2016	2018	-	Mar	Sat>=24	1:00	1:00	S
-Rule Palestine	2016	2018	-	Oct	Sat>=24	1:00	0	-
+Rule Palestine	2016	2018	-	Mar	Sat<=30	1:00	1:00	S
+Rule Palestine	2016	2018	-	Oct	Sat<=30	1:00	0	-
 Rule Palestine	2019	only	-	Mar	29	0:00	1:00	S
-Rule Palestine	2019	only	-	Oct	Sat>=24	0:00	0	-
-Rule Palestine	2020	max	-	Mar	Sat>=24	0:00	1:00	S
-Rule Palestine	2020	max	-	Oct	Sat>=24	1:00	0	-
+Rule Palestine	2019	only	-	Oct	Sat<=30	0:00	0	-
+Rule Palestine	2020	2021	-	Mar	Sat<=30	0:00	1:00	S
+Rule Palestine	2020	only	-	Oct	24	1:00	0	-
+Rule Palestine	2021	only	-	Oct	29	1:00	0	-
+Rule Palestine	2022	only	-	Mar	27	0:00	1:00	S
+Rule Palestine	2022	max	-	Oct	Sat<=30	2:00	0	-
+Rule Palestine	2023	max	-	Mar	Sat<=30	2:00	1:00	S
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Gaza	2:17:52	-	LMT	1900 Oct
@@ -3523,6 +3520,12 @@ Zone	Asia/Hebron	2:20:23	-	LMT	1900 Oct
 # influence of the sources.  There is no current abbreviation for DST,
 # so use "PDT", the usual American style.
 
+# From P Chan (2021-05-10):
+# Here's a fairly comprehensive article in Japanese:
+# https://wiki.suikawiki.org/n/Philippine%20Time
+# From Paul Eggert (2021-05-10):
+# The info in the Japanese table has not been absorbed (yet) below.
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Phil	1936	only	-	Nov	1	0:00	1:00	D
 Rule	Phil	1937	only	-	Feb	1	0:00	0	S
@@ -3537,14 +3540,18 @@ Zone	Asia/Manila	-15:56:00 -	LMT	1844 Dec 31
 			9:00	-	JST	1944 Nov
 			8:00	Phil	P%sT
 
+# Bahrain
 # Qatar
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Qatar	3:26:08 -	LMT	1920     # Al Dawhah / Doha
 			4:00	-	+04	1972 Jun
 			3:00	-	+03
-Link Asia/Qatar Asia/Bahrain
 
+# Kuwait
 # Saudi Arabia
+# Yemen
+#
+# Japan's year-round bases in Antarctica match this since 1970.
 #
 # From Paul Eggert (2018-08-29):
 # Time in Saudi Arabia and other countries in the Arabian peninsula was not
@@ -3589,12 +3596,10 @@ Link Asia/Qatar Asia/Bahrain
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Riyadh	3:06:52 -	LMT	1947 Mar 14
 			3:00	-	+03
-Link Asia/Riyadh Asia/Aden	# Yemen
-Link Asia/Riyadh Asia/Kuwait
 
 # Singapore
 # taken from Mok Ly Yng (2003-10-30)
-# http://www.math.nus.edu.sg/aslaksen/teaching/timezone.html
+# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Singapore	6:55:25 -	LMT	1901 Jan  1
 			6:55:25	-	SMT	1905 Jun  1 # Singapore M.T.
@@ -3819,19 +3824,27 @@ Rule	Syria	2007	only	-	Nov	 Fri>=1	0:00	0	-
 # Our brief summary:
 # https://www.timeanddate.com/news/time/syria-dst-2012.html
 
-# From Arthur David Olson (2012-03-27):
-# Assume last Friday in March going forward XXX.
+# From Steffen Thorsen (2022-10-05):
+# Syria is adopting year-round DST, starting this autumn....
+# From https://www.enabbaladi.net/archives/607812
+# "This [the decision] came after the weekly government meeting today,
+# Tuesday 4 October ..."
+#
+# From Paul Eggert (2022-10-05):
+# Like Jordan, model this as a transition from EEST +03 (DST) to plain +03
+# (non-DST) at the point where DST would otherwise have ended.
 
 Rule	Syria	2008	only	-	Apr	Fri>=1	0:00	1:00	S
 Rule	Syria	2008	only	-	Nov	1	0:00	0	-
 Rule	Syria	2009	only	-	Mar	lastFri	0:00	1:00	S
 Rule	Syria	2010	2011	-	Apr	Fri>=1	0:00	1:00	S
-Rule	Syria	2012	max	-	Mar	lastFri	0:00	1:00	S
-Rule	Syria	2009	max	-	Oct	lastFri	0:00	0	-
+Rule	Syria	2012	2022	-	Mar	lastFri	0:00	1:00	S
+Rule	Syria	2009	2022	-	Oct	lastFri	0:00	0	-
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Damascus	2:25:12 -	LMT	1920 # Dimashq
-			2:00	Syria	EE%sT
+			2:00	Syria	EE%sT	2022 Oct 28 0:00
+			3:00	-	+03
 
 # Tajikistan
 # From Shanks & Pottenger.
@@ -3839,16 +3852,18 @@ Zone	Asia/Damascus	2:25:12 -	LMT	1920 # Dimashq
 Zone	Asia/Dushanbe	4:35:12 -	LMT	1924 May  2
 			5:00	-	+05	1930 Jun 21
 			6:00 RussiaAsia +06/+07	1991 Mar 31  2:00s
-			5:00	1:00	+05/+06	1991 Sep  9  2:00s
+			5:00	1:00	+06	1991 Sep  9  2:00s
 			5:00	-	+05
 
+# Cambodia
+# Christmas I
+# Laos
 # Thailand
+# Vietnam (northern)
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Bangkok	6:42:04	-	LMT	1880
 			6:42:04	-	BMT	1920 Apr # Bangkok Mean Time
 			7:00	-	+07
-Link Asia/Bangkok Asia/Phnom_Penh	# Cambodia
-Link Asia/Bangkok Asia/Vientiane	# Laos
 
 # Turkmenistan
 # From Shanks & Pottenger.
@@ -3859,11 +3874,15 @@ Zone	Asia/Ashgabat	3:53:32 -	LMT	1924 May  2 # or Ashkhabad
 			4:00 RussiaAsia	+04/+05	1992 Jan 19  2:00
 			5:00	-	+05
 
+# Oman
+# Réunion
+# Seychelles
 # United Arab Emirates
+#
+# The Crozet Is also observe Réunion time; see the 'antarctica' file.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Asia/Dubai	3:41:12 -	LMT	1920
 			4:00	-	+04
-Link Asia/Dubai Asia/Muscat	# Oman
 
 # Uzbekistan
 # Byalokoz 1919 says Uzbekistan was 4:27:53.
@@ -3875,14 +3894,15 @@ Zone	Asia/Samarkand	4:27:53 -	LMT	1924 May  2
 			6:00	-	+06	1982 Apr  1
 			5:00 RussiaAsia	+05/+06	1992
 			5:00	-	+05
-# Milne says Tashkent was 4:37:10.8; round to nearest.
+# Milne says Tashkent was 4:37:10.8.
+		#STDOFF	4:37:10.8
 Zone	Asia/Tashkent	4:37:11 -	LMT	1924 May  2
 			5:00	-	+05	1930 Jun 21
 			6:00 RussiaAsia	+06/+07	1991 Mar 31  2:00
 			5:00 RussiaAsia	+05/+06	1992
 			5:00	-	+05
 
-# Vietnam
+# Vietnam (southern)
 
 # From Paul Eggert (2014-10-04):
 # Milne gives 7:16:56 for the meridian of Saigon in 1899, as being
@@ -3894,7 +3914,7 @@ Zone	Asia/Tashkent	4:37:11 -	LMT	1924 May  2
 # The English-language name of Vietnam's most populous city is "Ho Chi Minh
 # City"; use Ho_Chi_Minh below to avoid a name of more than 14 characters.
 
-# From Paul Eggert (2014-10-21) after a heads-up from Trần Ngọc Quân:
+# From Paul Eggert (2022-07-27) after a 2014 heads-up from Trần Ngọc Quân:
 # Trần Tiến Bình's authoritative book "Lịch Việt Nam: thế kỷ XX-XXI (1901-2100)"
 # (Nhà xuất bản Văn Hoá - Thông Tin, Hanoi, 2005), pp 49-50,
 # is quoted verbatim in:
@@ -3906,8 +3926,8 @@ Zone	Asia/Tashkent	4:37:11 -	LMT	1924 May  2
 # The 1906 transition was effective July 1 and standardized Indochina to
 # Phù Liễn Observatory, legally 104° 17' 17" east of Paris.
 # It's unclear whether this meant legal Paris Mean Time (00:09:21) or
-# the Paris Meridian (2° 20' 14.03" E); the former yields 07:06:30.1333...
-# and the latter 07:06:29.333... so either way it rounds to 07:06:30,
+# the Paris Meridian; for now guess the former and round the exact
+# 07:06:30.1333... to 07:06:30.13 as the legal spec used 66 2/3 ms precision.
 # which is used below even though the modern-day Phù Liễn Observatory
 # is closer to 07:06:31.  Abbreviate Phù Liễn Mean Time as PLMT.
 #
@@ -3934,7 +3954,8 @@ Zone	Asia/Tashkent	4:37:11 -	LMT	1924 May  2
 # NXB Thuận Hoá, Huế, 1995.
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Asia/Ho_Chi_Minh	7:06:40 -	LMT	1906 Jul  1
+		#STDOFF	7:06:30.13
+Zone Asia/Ho_Chi_Minh	7:06:30 -	LMT	1906 Jul  1
 			7:06:30	-	PLMT	1911 May  1 # Phù Liễn MT
 			7:00	-	+07	1942 Dec 31 23:00
 			8:00	-	+08	1945 Mar 14 23:00
@@ -3955,7 +3976,3 @@ Zone Asia/Ho_Chi_Minh	7:06:40 -	LMT	1906 Jul  1
 # For timestamps in north Vietnam back to 1970 (the tzdb cutoff),
 # use Asia/Bangkok; see the VN entries in the file zone1970.tab.
 # For timestamps before 1970, see Asia/Hanoi in the file 'backzone'.
-
-
-# Yemen
-# See Asia/Riyadh.

make/data/tzdata/australasia

@@ -274,19 +274,6 @@ Zone Antarctica/Macquarie 0	-	-00	1899 Nov
 			10:00	1:00	AEDT	2011
 			10:00	AT	AE%sT
 
-# Christmas
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Indian/Christmas	7:02:52 -	LMT	1895 Feb
-			7:00	-	+07
-
-# Cocos (Keeling) Is
-# These islands were ruled by the Ross family from about 1830 to 1978.
-# We don't know when standard time was introduced; for now, we guess 1900.
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Indian/Cocos	6:27:40	-	LMT	1900
-			6:30	-	+0630
-
-
 # Fiji
 
 # Milne gives 11:55:44 for Suva.
@@ -408,9 +395,28 @@ Zone	Indian/Cocos	6:27:40	-	LMT	1900
 # "Minister for Employment, Parveen Bala says they had never thought of
 # stopping daylight saving. He says it was just to decide on when it should
 # start and end.  Bala says it is a short period..."
-# Since the end date is still in line with our ongoing predictions, assume for
-# now that the later-than-usual start date is a one-time departure from the
-# recent second Sunday in November pattern.
+#
+# From Tim Parenti (2021-10-11), per Jashneel Kumar (2021-10-11) and P Chan
+# (2021-10-12):
+# https://www.fiji.gov.fj/Media-Centre/Speeches/English/PM-BAINIMARAMA-S-COVID-19-ANNOUNCEMENT-10-10-21
+# https://www.fbcnews.com.fj/news/covid-19/curfew-moved-back-to-11pm/
+# In a 2021-10-10 speech concerning updated Covid-19 mitigation measures in
+# Fiji, prime minister Josaia Voreqe "Frank" Bainimarama announced the
+# suspension of DST for the 2021/2022 season: "Given that we are in the process
+# of readjusting in the midst of so many changes, we will also put Daylight
+# Savings Time on hold for this year. It will also make the reopening of
+# scheduled commercial air service much smoother if we don't have to be
+# concerned shifting arrival and departure times, which may look like a simple
+# thing but requires some significant logistical adjustments domestically and
+# internationally."
+
+# From Shalvin Narayan (2022-10-27):
+# Please note that there will not be any daylight savings time change
+# in Fiji for 2022-2023....
+# https://www.facebook.com/FijianGovernment/posts/pfbid0mmWVTYmTibn66ybpFda75pDcf34SSpoSaskJW5gXwaKo5Sgc7273Q4fXWc6kQV6Hl
+#
+# From Paul Eggert (2022-10-27):
+# For now, assume DST is suspended indefinitely.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Fiji	1998	1999	-	Nov	Sun>=1	2:00	1:00	-
@@ -422,10 +428,9 @@ Rule	Fiji	2011	only	-	Mar	Sun>=1	3:00	0	-
 Rule	Fiji	2012	2013	-	Jan	Sun>=18	3:00	0	-
 Rule	Fiji	2014	only	-	Jan	Sun>=18	2:00	0	-
 Rule	Fiji	2014	2018	-	Nov	Sun>=1	2:00	1:00	-
-Rule	Fiji	2015	max	-	Jan	Sun>=12	3:00	0	-
+Rule	Fiji	2015	2021	-	Jan	Sun>=12	3:00	0	-
 Rule	Fiji	2019	only	-	Nov	Sun>=8	2:00	1:00	-
 Rule	Fiji	2020	only	-	Dec	20	2:00	1:00	-
-Rule	Fiji	2021	max	-	Nov	Sun>=8	2:00	1:00	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26 # Suva
 			12:00	Fiji	+12/+13
@@ -441,7 +446,9 @@ Zone	Pacific/Tahiti	 -9:58:16 -	LMT	1912 Oct # Papeete
 # Clipperton (near North America) is administered from French Polynesia;
 # it is uninhabited.
 
+
 # Guam
+# N Mariana Is
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 # http://guamlegislature.com/Public_Laws_5th/PL05-025.pdf
@@ -481,13 +488,21 @@ Zone	Pacific/Guam	-14:21:00 -	LMT	1844 Dec 31
 			 9:00	-	+09	1944 Jul 31
 			10:00	Guam	G%sT	2000 Dec 23
 			10:00	-	ChST	# Chamorro Standard Time
-Link Pacific/Guam Pacific/Saipan # N Mariana Is
 
-# Kiribati
+
+# Kiribati (Gilbert Is)
+# Marshall Is
+# Tuvalu
+# Wake
+# Wallis & Futuna
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Tarawa	 11:32:04 -	LMT	1901 # Bairiki
 			 12:00	-	+12
-Zone Pacific/Enderbury	-11:24:20 -	LMT	1901
+
+# Kiribati (except Gilbert Is)
+# See Pacific/Tarawa for the Gilbert Is.
+# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
+Zone Pacific/Kanton	  0	-	-00	1937 Aug 31
 			-12:00	-	-12	1979 Oct
 			-11:00	-	-11	1994 Dec 31
 			 13:00	-	+13
@@ -496,19 +511,9 @@ Zone Pacific/Kiritimati	-10:29:20 -	LMT	1901
 			-10:00	-	-10	1994 Dec 31
 			 14:00	-	+14
 
-# N Mariana Is
-# See Pacific/Guam.
-
 # Marshall Is
+# See Pacific/Tarawa for most locations.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Majuro	 11:24:48 -	LMT	1901
-			 11:00	-	+11	1914 Oct
-			  9:00	-	+09	1919 Feb  1
-			 11:00	-	+11	1937
-			 10:00	-	+10	1941 Apr  1
-			  9:00	-	+09	1944 Jan 30
-			 11:00	-	+11	1969 Oct
-			 12:00	-	+12
 Zone Pacific/Kwajalein	 11:09:20 -	LMT	1901
 			 11:00	-	+11	1937
 			 10:00	-	+10	1941 Apr  1
@@ -518,22 +523,9 @@ Zone Pacific/Kwajalein	 11:09:20 -	LMT	1901
 			 12:00	-	+12
 
 # Micronesia
+# For Chuuk and Yap see Pacific/Port_Moresby.
+# For Pohnpei see Pacific/Guadalcanal.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Chuuk	-13:52:52 -	LMT	1844 Dec 31
-			 10:07:08 -	LMT	1901
-			 10:00	-	+10	1914 Oct
-			  9:00	-	+09	1919 Feb  1
-			 10:00	-	+10	1941 Apr  1
-			  9:00	-	+09	1945 Aug
-			 10:00	-	+10
-Zone Pacific/Pohnpei	-13:27:08 -	LMT	1844 Dec 31	# Kolonia
-			 10:32:52 -	LMT	1901
-			 11:00	-	+11	1914 Oct
-			  9:00	-	+09	1919 Feb  1
-			 11:00	-	+11	1937
-			 10:00	-	+10	1941 Apr  1
-			  9:00	-	+09	1945 Aug
-			 11:00	-	+11
 Zone Pacific/Kosrae	-13:08:04 -	LMT	1844 Dec 31
 			 10:51:56 -	LMT	1901
 			 11:00	-	+11	1914 Oct
@@ -568,6 +560,7 @@ Zone	Pacific/Noumea	11:05:48 -	LMT	1912 Jan 13 # Nouméa
 ###############################################################################
 
 # New Zealand
+# McMurdo Station and Scott Base in Antarctica use Auckland time.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	NZ	1927	only	-	Nov	 6	2:00	1:00	S
@@ -603,12 +596,11 @@ Rule	Chatham	2008	max	-	Apr	Sun>=1	2:45s	0	-
 Zone Pacific/Auckland	11:39:04 -	LMT	1868 Nov  2
 			11:30	NZ	NZ%sT	1946 Jan  1
 			12:00	NZ	NZ%sT
+
 Zone Pacific/Chatham	12:13:48 -	LMT	1868 Nov  2
 			12:15	-	+1215	1946 Jan  1
 			12:45	Chatham	+1245/+1345
 
-Link Pacific/Auckland Antarctica/McMurdo
-
 # Auckland Is
 # uninhabited; Māori and Moriori, colonial settlers, pastoralists, sealers,
 # and scientific personnel have wintered
@@ -620,13 +612,46 @@ Link Pacific/Auckland Antarctica/McMurdo
 # was probably like Pacific/Auckland
 
 # Cook Is
-# From Shanks & Pottenger:
+#
+# From Alexander Krivenyshev (2021-03-24):
+# In 1899 the Cook Islands celebrated Christmas twice to correct the calendar.
+# According to the old books, missionaries were unaware of
+# the International Date line, when they came from Sydney.
+# Thus the Cook Islands were one day ahead....
+# http://nzetc.victoria.ac.nz/tm/scholarly/tei-KloDisc-t1-body-d18.html
+# ... Appendix to the Journals of the House of Representatives, 1900
+# https://atojs.natlib.govt.nz/cgi-bin/atojs?a=d&d=AJHR1900-I.2.1.2.3
+# (page 20)
+#
+# From Michael Deckers (2021-03-24):
+# ... in the Cook Island Act of 1915-10-11, online at
+# http://www.paclii.org/ck/legis/ck-nz_act/cia1915132/
+# "651. The hour of the day shall in each of the islands included in the
+#  Cook Islands be determined in accordance with the meridian of that island."
+# so that local (mean?) time was still used in Rarotonga (and Niue) in 1915.
+# This was changed in the Cook Island Amendment Act of 1952-10-16 ...
+# http://www.paclii.org/ck/legis/ck-nz_act/ciaa1952212/
+# "651 (1) The hour of the day in each of the islands included in the Cook
+#  Islands, other than Niue, shall be determined as if each island were
+#  situated on the meridian one hundred and fifty-seven degrees thirty minutes
+#  West of Greenwich.  (2) The hour of the day in the Island of Niue shall be
+#  determined as if that island were situated on the meridian one hundred and
+#  seventy degrees West of Greenwich."
+# This act does not state when it takes effect, so one has to assume it
+# applies since 1952-10-16.  But there is the possibility that the act just
+# legalized prior existing practice, as we had seen with the Guernsey law of
+# 1913-06-18 for the switch in 1909-04-19.
+#
+# From Paul Eggert (2021-03-24):
+# Transitions after 1952 are from Shanks & Pottenger.
+#
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Cook	1978	only	-	Nov	12	0:00	0:30	-
 Rule	Cook	1979	1991	-	Mar	Sun>=1	0:00	0	-
 Rule	Cook	1979	1990	-	Oct	lastSun	0:00	0:30	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901        # Avarua
+Zone Pacific/Rarotonga	13:20:56 -	LMT	1899 Dec 26 # Avarua
+			-10:39:04 -	LMT	1952 Oct 16
 			-10:30	-	-1030	1978 Nov 12
 			-10:00	Cook	-10/-0930
 
@@ -634,10 +659,18 @@ Zone Pacific/Rarotonga	-10:39:04 -	LMT	1901        # Avarua
 
 
 # Niue
+# See Pacific/Rarotonga comments for 1952 transition.
+#
+# From Tim Parenti (2021-09-13):
+# Consecutive contemporaneous editions of The Air Almanac listed -11:20 for
+# Niue as of Apr 1964 but -11 as of Aug 1964:
+#   Apr 1964: https://books.google.com/books?id=_1So677Y5vUC&pg=SL1-PA23
+#   Aug 1964: https://books.google.com/books?id=MbJloqd-zyUC&pg=SL1-PA23
+# Without greater specificity, guess 1964-07-01 for this transition.
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Pacific/Niue	-11:19:40 -	LMT	1901        # Alofi
-			-11:20	-	-1120	1951
-			-11:30	-	-1130	1978 Oct  1
+Zone	Pacific/Niue	-11:19:40 -	LMT	1952 Oct 16	# Alofi
+			-11:20	-	-1120	1964 Jul
 			-11:00	-	-11
 
 # Norfolk
@@ -693,10 +726,10 @@ Zone Pacific/Pitcairn	-8:40:20 -	LMT	1901        # Adamstown
 			-8:00	-	-08
 
 # American Samoa
+# Midway
 Zone Pacific/Pago_Pago	 12:37:12 -	LMT	1892 Jul  5
 			-11:22:48 -	LMT	1911
 			-11:00	-	SST	            # S=Samoa
-Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
 
 # Samoa (formerly and also known as Western Samoa)
 
@@ -765,13 +798,17 @@ Link Pacific/Pago_Pago Pacific/Midway # in US minor outlying islands
 # From Paul Eggert (2014-07-08):
 # That web page currently lists transitions for 2012/3 and 2013/4.
 # Assume the pattern instituted in 2012 will continue indefinitely.
+#
+# From Geoffrey D. Bennett (2021-09-20):
+# https://www.mcil.gov.ws/storage/2021/09/MCIL-Scan_20210920_120553.pdf
+# DST has been cancelled for this year.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	WS	2010	only	-	Sep	lastSun	0:00	1	-
 Rule	WS	2011	only	-	Apr	Sat>=1	4:00	0	-
 Rule	WS	2011	only	-	Sep	lastSat	3:00	1	-
-Rule	WS	2012	max	-	Apr	Sun>=1	4:00	0	-
-Rule	WS	2012	max	-	Sep	lastSun	3:00	1	-
+Rule	WS	2012	2021	-	Apr	Sun>=1	4:00	0	-
+Rule	WS	2012	2020	-	Sep	lastSun	3:00	1	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone Pacific/Apia	 12:33:04 -	LMT	1892 Jul  5
 			-11:26:56 -	LMT	1911
@@ -818,16 +855,11 @@ Rule	Tonga	2001	2002	-	Jan	lastSun	2:00	0	-
 Rule	Tonga	2016	only	-	Nov	Sun>=1	2:00	1:00	-
 Rule	Tonga	2017	only	-	Jan	Sun>=15	3:00	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Tongatapu	12:19:20 -	LMT	1901
-			12:20	-	+1220	1941
+Zone Pacific/Tongatapu	12:19:12 -	LMT	1945 Sep 10
+			12:20	-	+1220	1961
 			13:00	-	+13	1999
 			13:00	Tonga	+13/+14
 
-# Tuvalu
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Pacific/Funafuti	11:56:52 -	LMT	1901
-			12:00	-	+12
-
 
 # US minor outlying islands
 
@@ -878,17 +910,9 @@ Zone Pacific/Funafuti	11:56:52 -	LMT	1901
 # Kingman
 # uninhabited
 
-# Midway
-# See Pacific/Pago_Pago.
-
 # Palmyra
 # uninhabited since World War II; was probably like Pacific/Kiritimati
 
-# Wake
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Pacific/Wake	11:06:28 -	LMT	1901
-			12:00	-	+12
-
 
 # Vanuatu
 
@@ -925,11 +949,6 @@ Rule	Vanuatu	1992	only	-	Oct	Sat>=22	24:00	1:00	-
 Zone	Pacific/Efate	11:13:16 -	LMT	1912 Jan 13 # Vila
 			11:00	Vanuatu	+11/+12
 
-# Wallis and Futuna
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Pacific/Wallis	12:15:20 -	LMT	1901
-			12:00	-	+12
-
 ###############################################################################
 
 # NOTES
@@ -1246,6 +1265,7 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # to have the extra hour of sunshine removed from their area."  See:
 # Daylight saving coming to WA in 2019. Guardian Express. 2018-04-01.
 # https://www.communitynews.com.au/guardian-express/news/exclusive-daylight-savings-coming-wa-summer-2018/
+# [The article ends with "Today's date is April 1."]
 
 # Queensland
 
@@ -1761,6 +1781,23 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # One source for this is page 202 of: Bartky IR. One Time Fits All:
 # The Campaigns for Global Uniformity (2007).
 
+# Kanton
+
+# From Paul Eggert (2021-05-27):
+# Kiribati's +13 timezone is represented by Kanton, its only populated
+# island.  (It was formerly spelled "Canton", but Gilbertese lacks "C".)
+# Kanton was settled on 1937-08-31 by two British radio operators
+# <https://history.state.gov/historicaldocuments/frus1937v02/d94>;
+# Americans came the next year and built an airfield, partly to
+# establish airline service and perhaps partly anticipating the
+# next war.  Aside from the war, the airfield was used by commercial
+# airlines until long-range jets became standard; although currently
+# for emergency use only, China says it is considering rebuilding the
+# airfield for high-end niche tourism.  Kanton has about two dozen
+# people, caretakers who rotate in from the rest of Kiribati in 2-5
+# year shifts, and who use some of the leftover structures
+# <http://pipa.neaq.org/2012/06/images-of-kanton-island.html>.
+
 # Kwajalein
 
 # From an AP article (1993-08-22):
@@ -1772,16 +1809,12 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # "In Marshall Islands, Friday is followed by Sunday", NY Times. 1993-08-22.
 # https://www.nytimes.com/1993/08/22/world/in-marshall-islands-friday-is-followed-by-sunday.html
 
-# From Phake Nick (2018-10-27):
-# <https://wiki.suikawiki.org/n/南洋群島の標準時> ... pointed out that
-# currently tzdata say Pacific/Kwajalein switched from GMT+11 to GMT-12 in
-# 1969 October without explanation, however an 1993 article from NYT say it
-# synchorized its day with US mainland about 40 years ago and thus the switch
-# should occur at around 1950s instead.
-#
-# From Paul Eggert (2018-11-18):
-# The NYT (actually, AP) article is vague and possibly wrong about this.
-# The article says the earlier switch was "40 years ago when the United States
+# From Paul Eggert (2022-03-31):
+# Phake Nick (2018-10-27) noted <https://wiki.suikawiki.org/n/南洋群島の標準時>'s
+# citation of a 1993 AP article published in the New York Times saying
+# Kwajalein synchronized its day with the US mainland about 40 years earlier.
+# However the AP article is vague and possibly wrong about this.  The article
+# says the earlier switch was "about 40 years ago when the United States
 # Army established a missile test range here".  However, the Kwajalein Test
 # Center was established on 1960-10-01 and was run by the US Navy.  It was
 # transferred to the US Army on 1964-07-01.  See "Seize the High Ground"
@@ -1828,13 +1861,6 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # Like the Ladrones (see Guam commentary), assume the Spanish East Indies
 # kept American time until the Philippines switched at the end of 1844.
 
-# Alan Eugene Davis writes (1996-03-16),
-# "I am certain, having lived there for the past decade, that 'Truk'
-# (now properly known as Chuuk) ... is in the time zone GMT+10."
-#
-# Shanks & Pottenger write that Truk switched from UT +10 to +11
-# on 1978-10-01; ignore this for now.
-
 # From Paul Eggert (1999-10-29):
 # The Federated States of Micronesia Visitors Board writes in
 # The Federated States of Micronesia - Visitor Information (1999-01-26)
@@ -2044,6 +2070,17 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 
 # Tonga
 
+# From Paul Eggert (2021-03-04):
+# In 1943 "The standard time kept is 12 hrs. 19 min. 12 sec. fast
+# on Greenwich mean time." according to the Admiralty's Hydrographic
+# Dept., Pacific Islands Pilot, Vol. II, 7th ed., 1943, p 360.
+
+# From Michael Deckers (2021-03-03):
+# [Ian R Bartky: "One Time Fits All: The Campaigns for Global Uniformity".
+# Stanford University Press. 2007. p. 255]:
+# On 10 September 1945 Tonga adopted a standard time 12 hours,
+# 20 minutes in advance of Greenwich.
+
 # From Paul Eggert (1996-01-22):
 # Today's _Wall Street Journal_ (p 1) reports that "Tonga has been plotting
 # to sneak ahead of [New Zealanders] by introducing daylight-saving time."
@@ -2072,9 +2109,26 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # The Crown Prince, presented an unanswerable argument: "Remember that
 # on the World Day of Prayer, you would be the first people on Earth
 # to say your prayers in the morning."
-
-# From Paul Eggert (2006-03-22):
-# Shanks & Pottenger say the transition was on 1968-10-01; go with Mundell.
+#
+# From Tim Parenti (2021-09-13), per Paul Eggert (2006-03-22) and Michael
+# Deckers (2021-03-03):
+# Mundell places the transition from +12:20 to +13 in 1941, while Shanks &
+# Pottenger say the transition was on 1968-10-01.
+#
+# The Air Almanac published contemporaneous tables of standard times,
+# which listed +12:20 as of Nov 1960 and +13 as of Mar 1961:
+#   Nov 1960: https://books.google.com/books?id=bVgtWM6kPZUC&pg=SL1-PA19
+#   Mar 1961: https://books.google.com/books?id=W2nItAul4g0C&pg=SL1-PA19
+# (Thanks to P Chan for pointing us toward these sources.)
+# This agrees with Bartky, who writes that "since 1961 [Tonga's] official time
+# has been thirteen hours in advance of Greenwich time" (p. 202) and further
+# writes in an endnote that this was because "the legislation was amended" on
+# 1960-10-19. (p. 255)
+#
+# Without greater specificity, presume that Bartky and the Air Almanac point to
+# a 1961-01-01 transition, as Tāufaʻāhau Tupou IV was still Crown Prince in
+# 1961 and this still jives with the gist of Mundell's telling, and go with
+# this over Shanks & Pottenger.
 
 # From Eric Ulevik (1999-05-03):
 # Tonga's director of tourism, who is also secretary of the National Millennium
@@ -2137,7 +2191,7 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # through the third Sunday in January at 03:00, like Fiji, for now.
 
 # From David Wade (2017-10-18):
-# In August government was disolved by the King.  The current prime minister
+# In August government was dissolved by the King.  The current prime minister
 # continued in office in care taker mode.  It is easy to see that few
 # decisions will be made until elections 16th November.
 #
@@ -2145,26 +2199,6 @@ Zone	Pacific/Wallis	12:15:20 -	LMT	1901
 # For now, guess that DST is discontinued.  That's what the IATA is guessing.
 
 
-# Wake
-
-# From Vernice Anderson, Personal Secretary to Philip Jessup,
-# US Ambassador At Large (oral history interview, 1971-02-02):
-#
-# Saturday, the 14th [of October, 1950] - ...  The time was all the
-# more confusing at that point, because we had crossed the
-# International Date Line, thus getting two Sundays.  Furthermore, we
-# discovered that Wake Island had two hours of daylight saving time
-# making calculation of time in Washington difficult if not almost
-# impossible.
-#
-# https://www.trumanlibrary.org/oralhist/andrsonv.htm
-
-# From Paul Eggert (2003-03-23):
-# We have no other report of DST in Wake Island, so omit this info for now.
-
-# See also the commentary for Micronesia.
-
-
 ###############################################################################
 
 # The International Date Line

make/data/tzdata/backward

@@ -26,53 +26,34 @@
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
-# This file provides links between current names for timezones
-# and their old names.  Many names changed in late 1993.
+# This file provides links from old or merged timezone names to current ones.
+# Many names changed in 1993 and in 1995, and many merged names moved here
+# in the period from 2013 through 2022.  Several of these names are
+# also present in the file 'backzone', which has data important only
+# for pre-1970 timestamps and so is out of scope for tzdb proper.
 
-# Link	TARGET			LINK-NAME
-Link	Africa/Nairobi		Africa/Asmera
-Link	Africa/Abidjan		Africa/Timbuktu
-Link	America/Argentina/Catamarca	America/Argentina/ComodRivadavia
-Link	America/Adak		America/Atka
-Link	America/Argentina/Buenos_Aires	America/Buenos_Aires
-Link	America/Argentina/Catamarca	America/Catamarca
-Link	America/Atikokan	America/Coral_Harbour
-Link	America/Argentina/Cordoba	America/Cordoba
-Link	America/Tijuana		America/Ensenada
-Link	America/Indiana/Indianapolis	America/Fort_Wayne
-Link	America/Nuuk		America/Godthab
-Link	America/Indiana/Indianapolis	America/Indianapolis
-Link	America/Argentina/Jujuy	America/Jujuy
-Link	America/Indiana/Knox	America/Knox_IN
-Link	America/Kentucky/Louisville	America/Louisville
-Link	America/Argentina/Mendoza	America/Mendoza
-Link	America/Toronto		America/Montreal
-Link	America/Rio_Branco	America/Porto_Acre
-Link	America/Argentina/Cordoba	America/Rosario
-Link	America/Tijuana		America/Santa_Isabel
-Link	America/Denver		America/Shiprock
-Link	America/Port_of_Spain	America/Virgin
-Link	Pacific/Auckland	Antarctica/South_Pole
-Link	Asia/Ashgabat		Asia/Ashkhabad
-Link	Asia/Kolkata		Asia/Calcutta
-Link	Asia/Shanghai		Asia/Chongqing
-Link	Asia/Shanghai		Asia/Chungking
-Link	Asia/Dhaka		Asia/Dacca
-Link	Asia/Shanghai		Asia/Harbin
-Link	Asia/Urumqi		Asia/Kashgar
-Link	Asia/Kathmandu		Asia/Katmandu
-Link	Asia/Macau		Asia/Macao
-Link	Asia/Yangon		Asia/Rangoon
-Link	Asia/Ho_Chi_Minh	Asia/Saigon
-Link	Asia/Jerusalem		Asia/Tel_Aviv
-Link	Asia/Thimphu		Asia/Thimbu
-Link	Asia/Makassar		Asia/Ujung_Pandang
-Link	Asia/Ulaanbaatar	Asia/Ulan_Bator
-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
+# Although this file is optional and tzdb will work if you omit it by
+# building with 'make BACKWARD=', in practice downstream users
+# typically use this file for backward compatibility.
+
+# This file is divided into sections, one for each major reason for a
+# backward compatibility link.  Each section is sorted by link name.
+
+# A "#= TARGET1" comment labels each link inserted only because some
+# .zi parsers (including tzcode through 2022e) mishandle links to links.
+# The comment says what the target would be if these parsers were fixed
+# so that data could contain links to links.  For example, the line
+# "Link Australia/Sydney Australia/ACT #= Australia/Canberra" would be
+# "Link Australia/Canberra Australia/ACT" were it not that data lines
+# refrain from linking to links like Australia/Canberra, which means
+# the Australia/ACT line links instead to Australia/Sydney,
+# Australia/Canberra's target.
+
+
+# Pre-1993 naming conventions
+
+# Link	TARGET			LINK-NAME	#= TARGET1
+Link	Australia/Sydney	Australia/ACT	#= Australia/Canberra
 Link	Australia/Lord_Howe	Australia/LHI
 Link	Australia/Sydney	Australia/NSW
 Link	Australia/Darwin	Australia/North
@@ -82,7 +63,7 @@ Link	Australia/Hobart	Australia/Tasmania
 Link	Australia/Melbourne	Australia/Victoria
 Link	Australia/Perth		Australia/West
 Link	Australia/Broken_Hill	Australia/Yancowinna
-Link	America/Rio_Branco	Brazil/Acre
+Link	America/Rio_Branco	Brazil/Acre	#= America/Porto_Acre
 Link	America/Noronha		Brazil/DeNoronha
 Link	America/Sao_Paulo	Brazil/East
 Link	America/Manaus		Brazil/West
@@ -102,17 +83,36 @@ Link	Pacific/Easter		Chile/EasterIsland
 Link	America/Havana		Cuba
 Link	Africa/Cairo		Egypt
 Link	Europe/Dublin		Eire
+# Vanguard section, for most .zi parsers.
+#Link	GMT			Etc/GMT
+#Link	GMT			Etc/GMT+0
+#Link	GMT			Etc/GMT-0
+#Link	GMT			Etc/GMT0
+#Link	GMT			Etc/Greenwich
+# Rearguard section, for TZUpdater 2.3.2 and earlier.
+Link	Etc/GMT			Etc/GMT+0
+Link	Etc/GMT			Etc/GMT-0
+Link	Etc/GMT			Etc/GMT0
+Link	Etc/GMT			Etc/Greenwich
+# End of rearguard section.
 Link	Etc/UTC			Etc/UCT
-Link	Europe/London		Europe/Belfast
-Link	Europe/Chisinau		Europe/Tiraspol
+Link	Etc/UTC			Etc/Universal
+Link	Etc/UTC			Etc/Zulu
 Link	Europe/London		GB
 Link	Europe/London		GB-Eire
+# Vanguard section, for most .zi parsers.
+#Link	GMT			GMT+0
+#Link	GMT			GMT-0
+#Link	GMT			GMT0
+#Link	GMT			Greenwich
+# Rearguard section, for TZUpdater 2.3.2 and earlier.
 Link	Etc/GMT			GMT+0
 Link	Etc/GMT			GMT-0
 Link	Etc/GMT			GMT0
 Link	Etc/GMT			Greenwich
+# End of rearguard section.
 Link	Asia/Hong_Kong		Hongkong
-Link	Atlantic/Reykjavik	Iceland
+Link	Africa/Abidjan		Iceland	#= Atlantic/Reykjavik
 Link	Asia/Tehran		Iran
 Link	Asia/Jerusalem		Israel
 Link	America/Jamaica		Jamaica
@@ -124,13 +124,8 @@ Link	America/Mazatlan	Mexico/BajaSur
 Link	America/Mexico_City	Mexico/General
 Link	Pacific/Auckland	NZ
 Link	Pacific/Chatham		NZ-CHAT
-Link	America/Denver		Navajo
+Link	America/Denver		Navajo	#= America/Shiprock
 Link	Asia/Shanghai		PRC
-Link	Pacific/Honolulu	Pacific/Johnston
-Link	Pacific/Pohnpei		Pacific/Ponape
-Link	Pacific/Pago_Pago	Pacific/Samoa
-Link	Pacific/Chuuk		Pacific/Truk
-Link	Pacific/Chuuk		Pacific/Yap
 Link	Europe/Warsaw		Poland
 Link	Europe/Lisbon		Portugal
 Link	Asia/Taipei		ROC
@@ -154,3 +149,192 @@ Link	Etc/UTC			UTC
 Link	Etc/UTC			Universal
 Link	Europe/Moscow		W-SU
 Link	Etc/UTC			Zulu
+
+
+# Two-part names that were renamed mostly to three-part names in 1995
+
+# Link	TARGET				LINK-NAME	#= TARGET1
+Link	America/Argentina/Buenos_Aires	America/Buenos_Aires
+Link	America/Argentina/Catamarca	America/Catamarca
+Link	America/Argentina/Cordoba	America/Cordoba
+Link	America/Indiana/Indianapolis	America/Indianapolis
+Link	America/Argentina/Jujuy		America/Jujuy
+Link	America/Indiana/Knox		America/Knox_IN
+Link	America/Kentucky/Louisville	America/Louisville
+Link	America/Argentina/Mendoza	America/Mendoza
+Link	America/Puerto_Rico		America/Virgin	#= America/St_Thomas
+Link	Pacific/Pago_Pago		Pacific/Samoa
+
+
+# Pre-2013 practice, which typically had a Zone per zone.tab line
+
+# Link	TARGET			LINK-NAME
+Link	Africa/Abidjan		Africa/Accra
+Link	Africa/Nairobi		Africa/Addis_Ababa
+Link	Africa/Nairobi		Africa/Asmara
+Link	Africa/Abidjan		Africa/Bamako
+Link	Africa/Lagos		Africa/Bangui
+Link	Africa/Abidjan		Africa/Banjul
+Link	Africa/Maputo		Africa/Blantyre
+Link	Africa/Lagos		Africa/Brazzaville
+Link	Africa/Maputo		Africa/Bujumbura
+Link	Africa/Abidjan		Africa/Conakry
+Link	Africa/Abidjan		Africa/Dakar
+Link	Africa/Nairobi		Africa/Dar_es_Salaam
+Link	Africa/Nairobi		Africa/Djibouti
+Link	Africa/Lagos		Africa/Douala
+Link	Africa/Abidjan		Africa/Freetown
+Link	Africa/Maputo		Africa/Gaborone
+Link	Africa/Maputo		Africa/Harare
+Link	Africa/Nairobi		Africa/Kampala
+Link	Africa/Maputo		Africa/Kigali
+Link	Africa/Lagos		Africa/Kinshasa
+Link	Africa/Lagos		Africa/Libreville
+Link	Africa/Abidjan		Africa/Lome
+Link	Africa/Lagos		Africa/Luanda
+Link	Africa/Maputo		Africa/Lubumbashi
+Link	Africa/Maputo		Africa/Lusaka
+Link	Africa/Lagos		Africa/Malabo
+Link	Africa/Johannesburg	Africa/Maseru
+Link	Africa/Johannesburg	Africa/Mbabane
+Link	Africa/Nairobi		Africa/Mogadishu
+Link	Africa/Lagos		Africa/Niamey
+Link	Africa/Abidjan		Africa/Nouakchott
+Link	Africa/Abidjan		Africa/Ouagadougou
+Link	Africa/Lagos		Africa/Porto-Novo
+Link	America/Puerto_Rico	America/Anguilla
+Link	America/Puerto_Rico	America/Antigua
+Link	America/Puerto_Rico	America/Aruba
+Link	America/Panama		America/Atikokan
+Link	America/Puerto_Rico	America/Blanc-Sablon
+Link	America/Panama		America/Cayman
+Link	America/Phoenix		America/Creston
+Link	America/Puerto_Rico	America/Curacao
+Link	America/Puerto_Rico	America/Dominica
+Link	America/Puerto_Rico	America/Grenada
+Link	America/Puerto_Rico	America/Guadeloupe
+Link	America/Puerto_Rico	America/Kralendijk
+Link	America/Puerto_Rico	America/Lower_Princes
+Link	America/Puerto_Rico	America/Marigot
+Link	America/Puerto_Rico	America/Montserrat
+Link	America/Toronto		America/Nassau
+Link	America/Puerto_Rico	America/Port_of_Spain
+Link	America/Puerto_Rico	America/St_Barthelemy
+Link	America/Puerto_Rico	America/St_Kitts
+Link	America/Puerto_Rico	America/St_Lucia
+Link	America/Puerto_Rico	America/St_Thomas
+Link	America/Puerto_Rico	America/St_Vincent
+Link	America/Puerto_Rico	America/Tortola
+Link	Pacific/Port_Moresby	Antarctica/DumontDUrville
+Link	Pacific/Auckland	Antarctica/McMurdo
+Link	Asia/Riyadh		Antarctica/Syowa
+Link	Asia/Urumqi		Antarctica/Vostok
+Link	Europe/Berlin		Arctic/Longyearbyen
+Link	Asia/Riyadh		Asia/Aden
+Link	Asia/Qatar		Asia/Bahrain
+Link	Asia/Kuching		Asia/Brunei
+Link	Asia/Singapore		Asia/Kuala_Lumpur
+Link	Asia/Riyadh		Asia/Kuwait
+Link	Asia/Dubai		Asia/Muscat
+Link	Asia/Bangkok		Asia/Phnom_Penh
+Link	Asia/Bangkok		Asia/Vientiane
+Link	Africa/Abidjan		Atlantic/Reykjavik
+Link	Africa/Abidjan		Atlantic/St_Helena
+Link	Europe/Brussels		Europe/Amsterdam
+Link	Europe/Prague		Europe/Bratislava
+Link	Europe/Zurich		Europe/Busingen
+Link	Europe/Berlin		Europe/Copenhagen
+Link	Europe/London		Europe/Guernsey
+Link	Europe/London		Europe/Isle_of_Man
+Link	Europe/London		Europe/Jersey
+Link	Europe/Belgrade		Europe/Ljubljana
+Link	Europe/Brussels		Europe/Luxembourg
+Link	Europe/Helsinki		Europe/Mariehamn
+Link	Europe/Paris		Europe/Monaco
+Link	Europe/Berlin		Europe/Oslo
+Link	Europe/Belgrade		Europe/Podgorica
+Link	Europe/Rome		Europe/San_Marino
+Link	Europe/Belgrade		Europe/Sarajevo
+Link	Europe/Belgrade		Europe/Skopje
+Link	Europe/Berlin		Europe/Stockholm
+Link	Europe/Zurich		Europe/Vaduz
+Link	Europe/Rome		Europe/Vatican
+Link	Europe/Belgrade		Europe/Zagreb
+Link	Africa/Nairobi		Indian/Antananarivo
+Link	Asia/Bangkok		Indian/Christmas
+Link	Asia/Yangon		Indian/Cocos
+Link	Africa/Nairobi		Indian/Comoro
+Link	Indian/Maldives		Indian/Kerguelen
+Link	Asia/Dubai		Indian/Mahe
+Link	Africa/Nairobi		Indian/Mayotte
+Link	Asia/Dubai		Indian/Reunion
+Link	Pacific/Port_Moresby	Pacific/Chuuk
+Link	Pacific/Tarawa		Pacific/Funafuti
+Link	Pacific/Tarawa		Pacific/Majuro
+Link	Pacific/Pago_Pago	Pacific/Midway
+Link	Pacific/Guadalcanal	Pacific/Pohnpei
+Link	Pacific/Guam		Pacific/Saipan
+Link	Pacific/Tarawa		Pacific/Wake
+Link	Pacific/Tarawa		Pacific/Wallis
+
+
+# Non-zone.tab locations with timestamps since 1970 that duplicate
+# those of an existing location
+
+# Link	TARGET			LINK-NAME
+Link	Africa/Abidjan		Africa/Timbuktu
+Link	America/Argentina/Catamarca	America/Argentina/ComodRivadavia
+Link	America/Adak		America/Atka
+Link	America/Panama		America/Coral_Harbour
+Link	America/Tijuana		America/Ensenada
+Link	America/Indiana/Indianapolis	America/Fort_Wayne
+Link	America/Toronto		America/Montreal
+Link	America/Toronto		America/Nipigon
+Link	America/Rio_Branco	America/Porto_Acre
+Link	America/Winnipeg	America/Rainy_River
+Link	America/Argentina/Cordoba	America/Rosario
+Link	America/Tijuana		America/Santa_Isabel
+Link	America/Denver		America/Shiprock
+Link	America/Toronto		America/Thunder_Bay
+Link	Pacific/Auckland	Antarctica/South_Pole
+Link	Asia/Shanghai		Asia/Chongqing
+Link	Asia/Shanghai		Asia/Harbin
+Link	Asia/Urumqi		Asia/Kashgar
+Link	Asia/Jerusalem		Asia/Tel_Aviv
+Link	Europe/Berlin		Atlantic/Jan_Mayen
+Link	Australia/Sydney	Australia/Canberra
+Link	Australia/Hobart	Australia/Currie
+Link	Europe/London		Europe/Belfast
+Link	Europe/Chisinau		Europe/Tiraspol
+Link	Europe/Kyiv		Europe/Uzhgorod
+Link	Europe/Kyiv		Europe/Zaporozhye
+Link	Pacific/Kanton		Pacific/Enderbury
+Link	Pacific/Honolulu	Pacific/Johnston
+Link	Pacific/Port_Moresby	Pacific/Yap
+
+
+# Alternate names for the same location
+
+# Link	TARGET			LINK-NAME	#= TARGET1
+Link	Africa/Nairobi		Africa/Asmera	#= Africa/Asmara
+Link	America/Nuuk		America/Godthab
+Link	Asia/Ashgabat		Asia/Ashkhabad
+Link	Asia/Kolkata		Asia/Calcutta
+Link	Asia/Shanghai		Asia/Chungking	#= Asia/Chongqing
+Link	Asia/Dhaka		Asia/Dacca
+# Istanbul is in both continents.
+Link	Europe/Istanbul		Asia/Istanbul
+Link	Asia/Kathmandu		Asia/Katmandu
+Link	Asia/Macau		Asia/Macao
+Link	Asia/Yangon		Asia/Rangoon
+Link	Asia/Ho_Chi_Minh	Asia/Saigon
+Link	Asia/Thimphu		Asia/Thimbu
+Link	Asia/Makassar		Asia/Ujung_Pandang
+Link	Asia/Ulaanbaatar	Asia/Ulan_Bator
+Link	Atlantic/Faroe		Atlantic/Faeroe
+Link	Europe/Kyiv		Europe/Kiev
+# Classically, Cyprus is in Asia; e.g. see Herodotus, Histories, I.72.
+# However, for various reasons many users expect to find it under Europe.
+Link	Asia/Nicosia		Europe/Nicosia
+Link	Pacific/Guadalcanal	Pacific/Ponape	#= Pacific/Pohnpei
+Link	Pacific/Port_Moresby	Pacific/Truk	#= Pacific/Chuuk

make/data/tzdata/etcetera

@@ -39,22 +39,23 @@
 # Do not use a POSIX TZ setting like TZ='GMT+4', which is four hours
 # behind GMT but uses the completely misleading abbreviation "GMT".
 
-Zone	Etc/GMT		0	-	GMT
+# The following zone is used by tzcode functions like gmtime,
+# which load the "UTC" file to handle seconds properly.
 Zone	Etc/UTC		0	-	UTC
 
+# Functions like gmtime load the "GMT" file to handle leap seconds properly.
+# Vanguard section, which works with most .zi parsers.
+#Zone	GMT		0	-	GMT
+# Rearguard section, for TZUpdater 2.3.2 and earlier.
+Zone	Etc/GMT		0	-	GMT
+
 # The following link uses older naming conventions,
 # but it belongs here, not in the file 'backward',
-# as functions like gmtime load the "GMT" file to handle leap seconds properly.
-# We want this to work even on installations that omit the other older names.
+# as it is needed for tzcode releases through 2022a,
+# where functions like gmtime load "GMT" instead of the "Etc/UTC".
+# We want this to work even on installations that omit 'backward'.
 Link	Etc/GMT				GMT
-
-Link	Etc/UTC				Etc/Universal
-Link	Etc/UTC				Etc/Zulu
-
-Link	Etc/GMT				Etc/Greenwich
-Link	Etc/GMT				Etc/GMT-0
-Link	Etc/GMT				Etc/GMT+0
-Link	Etc/GMT				Etc/GMT0
+# End of rearguard section.
 
 # Be consistent with POSIX TZ settings in the Zone names,
 # even though this is the opposite of what many people expect.

make/data/tzdata/leapseconds

@@ -95,11 +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	Dec	28	00:00:00
+#Expires 2023	Jun	28	00:00:00
 
 # POSIX timestamps for the data in this file:
 #updated 1467936000 (2016-07-08 00:00:00 UTC)
-#expires 1640649600 (2021-12-28 00:00:00 UTC)
+#expires 1687910400 (2023-06-28 00:00:00 UTC)
 
-#	Updated through IERS Bulletin C61
-#	File expires on:  28 December 2021
+#	Updated through IERS Bulletin C64
+#	File expires on:  28 June 2023

make/data/tzdata/northamerica

@@ -367,8 +367,7 @@ Zone	PST8PDT		 -8:00	US	P%sT
 # From Paul Eggert (2014-09-06):
 # Monthly Notices of the Royal Astronomical Society 44, 4 (1884-02-08), 208
 # says that New York City Hall time was 3 minutes 58.4 seconds fast of
-# Eastern time (i.e., -4:56:01.6) just before the 1883 switch.  Round to the
-# nearest second.
+# Eastern time (i.e., -4:56:01.6) just before the 1883 switch.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER
 Rule	NYC	1920	only	-	Mar	lastSun	2:00	1:00	D
@@ -377,7 +376,8 @@ Rule	NYC	1921	1966	-	Apr	lastSun	2:00	1:00	D
 Rule	NYC	1921	1954	-	Sep	lastSun	2:00	0	S
 Rule	NYC	1955	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 12:03:58
+		#STDOFF	-4:56:01.6
+Zone America/New_York	-4:56:02 -	LMT	1883 Nov 18 17:00u
 			-5:00	US	E%sT	1920
 			-5:00	NYC	E%sT	1942
 			-5:00	US	E%sT	1946
@@ -462,7 +462,7 @@ Rule	Chicago	1922	1966	-	Apr	lastSun	2:00	1:00	D
 Rule	Chicago	1922	1954	-	Sep	lastSun	2:00	0	S
 Rule	Chicago	1955	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:09:24
+Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1920
 			-6:00	Chicago	C%sT	1936 Mar  1  2:00
 			-5:00	-	EST	1936 Nov 15  2:00
@@ -471,7 +471,7 @@ Zone America/Chicago	-5:50:36 -	LMT	1883 Nov 18 12:09:24
 			-6:00	Chicago	C%sT	1967
 			-6:00	US	C%sT
 # Oliver County, ND switched from mountain to central time on 1992-10-25.
-Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:14:48
+Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 19:00u
 			-7:00	US	M%sT	1992 Oct 25  2:00
 			-6:00	US	C%sT
 # Morton County, ND, switched from mountain to central time on
@@ -481,7 +481,7 @@ Zone America/North_Dakota/Center -6:45:12 - LMT	1883 Nov 18 12:14:48
 # Jones, Mellette, and Todd Counties in South Dakota;
 # but in practice these other counties were already observing central time.
 # See <http://www.epa.gov/fedrgstr/EPA-IMPACT/2003/October/Day-28/i27056.htm>.
-Zone America/North_Dakota/New_Salem -6:45:39 - LMT	1883 Nov 18 12:14:21
+Zone America/North_Dakota/New_Salem -6:45:39 - LMT 1883 Nov 18 19:00u
 			-7:00	US	M%sT	2003 Oct 26  2:00
 			-6:00	US	C%sT
 
@@ -498,7 +498,7 @@ Zone America/North_Dakota/New_Salem -6:45:39 - LMT	1883 Nov 18 12:14:21
 # largest city in Mercer County).  Google Maps places Beulah's city hall
 # at 47° 15' 51" N, 101° 46' 40" W, which yields an offset of 6h47'07".
 
-Zone America/North_Dakota/Beulah -6:47:07 - LMT	1883 Nov 18 12:12:53
+Zone America/North_Dakota/Beulah -6:47:07 - LMT	1883 Nov 18 19:00u
 			-7:00	US	M%sT	2010 Nov  7  2:00
 			-6:00	US	C%sT
 
@@ -530,7 +530,7 @@ Rule	Denver	1921	only	-	May	22	2:00	0	S
 Rule	Denver	1965	1966	-	Apr	lastSun	2:00	1:00	D
 Rule	Denver	1965	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Denver	-6:59:56 -	LMT	1883 Nov 18 12:00:04
+Zone America/Denver	-6:59:56 -	LMT	1883 Nov 18 19:00u
 			-7:00	US	M%sT	1920
 			-7:00	Denver	M%sT	1942
 			-7:00	US	M%sT	1946
@@ -583,7 +583,7 @@ Rule	CA	1950	1966	-	Apr	lastSun	1:00	1:00	D
 Rule	CA	1950	1961	-	Sep	lastSun	2:00	0	S
 Rule	CA	1962	1966	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 12:07:02
+Zone America/Los_Angeles -7:52:58 -	LMT	1883 Nov 18 20:00u
 			-8:00	US	P%sT	1946
 			-8:00	CA	P%sT	1967
 			-8:00	US	P%sT
@@ -752,7 +752,11 @@ Zone America/Adak	 12:13:22 -	LMT	1867 Oct 19 12:44:35
 			-11:00	US	B%sT	1983 Oct 30  2:00
 			-10:00	US	AH%sT	1983 Nov 30
 			-10:00	US	H%sT
-# The following switches don't quite make our 1970 cutoff.
+# The following switches don't make our 1970 cutoff.
+#
+# Kiska observed Tokyo date and time during Japanese occupation from
+# 1942-06-06 to 1943-07-29, and similarly for Attu from 1942-06-07 to
+# 1943-05-29 (all dates American).  Both islands are now uninhabited.
 #
 # Shanks writes that part of southwest Alaska (e.g. Aniak)
 # switched from -11:00 to -10:00 on 1968-09-22 at 02:00,
@@ -841,13 +845,14 @@ Zone Pacific/Honolulu	-10:31:26 -	LMT	1896 Jan 13 12:00
 # Go with the Arizona State Library instead.
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Phoenix	-7:28:18 -	LMT	1883 Nov 18 11:31:42
+Zone America/Phoenix	-7:28:18 -	LMT	1883 Nov 18 19:00u
 			-7:00	US	M%sT	1944 Jan  1  0:01
 			-7:00	-	MST	1944 Apr  1  0:01
 			-7:00	US	M%sT	1944 Oct  1  0:01
 			-7:00	-	MST	1967
 			-7:00	US	M%sT	1968 Mar 21
 			-7:00	-	MST
+
 # From Arthur David Olson (1988-02-13):
 # A writer from the Inter Tribal Council of Arizona, Inc.,
 # notes in private correspondence dated 1987-12-28 that "Presently, only the
@@ -867,7 +872,7 @@ Zone America/Phoenix	-7:28:18 -	LMT	1883 Nov 18 11:31:42
 # switched four weeks late in 1974.
 #
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 12:15:11
+Zone America/Boise	-7:44:49 -	LMT	1883 Nov 18 20:00u
 			-8:00	US	P%sT	1923 May 13  2:00
 			-7:00	US	M%sT	1974
 			-7:00	-	MST	1974 Feb  3  2:00
@@ -939,7 +944,7 @@ Rule Indianapolis 1941	only	-	Jun	22	2:00	1:00	D
 Rule Indianapolis 1941	1954	-	Sep	lastSun	2:00	0	S
 Rule Indianapolis 1946	1954	-	Apr	lastSun	2:00	1:00	D
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Indianapolis -5:44:38 - LMT	1883 Nov 18 12:15:22
+Zone America/Indiana/Indianapolis -5:44:38 - LMT 1883 Nov 18 18:00u
 			-6:00	US	C%sT	1920
 			-6:00 Indianapolis C%sT	1942
 			-6:00	US	C%sT	1946
@@ -959,7 +964,7 @@ Rule	Marengo	1951	only	-	Sep	lastSun	2:00	0	S
 Rule	Marengo	1954	1960	-	Apr	lastSun	2:00	1:00	D
 Rule	Marengo	1954	1960	-	Sep	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Marengo -5:45:23 -	LMT	1883 Nov 18 12:14:37
+Zone America/Indiana/Marengo -5:45:23 -	LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1951
 			-6:00	Marengo	C%sT	1961 Apr 30  2:00
 			-5:00	-	EST	1969
@@ -983,7 +988,7 @@ Rule Vincennes	1960	only	-	Oct	lastSun	2:00	0	S
 Rule Vincennes	1961	only	-	Sep	lastSun	2:00	0	S
 Rule Vincennes	1962	1963	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Vincennes -5:50:07 - LMT	1883 Nov 18 12:09:53
+Zone America/Indiana/Vincennes -5:50:07 - LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1946
 			-6:00 Vincennes	C%sT	1964 Apr 26  2:00
 			-5:00	-	EST	1969
@@ -993,7 +998,7 @@ Zone America/Indiana/Vincennes -5:50:07 - LMT	1883 Nov 18 12:09:53
 			-5:00	US	E%sT
 #
 # Perry County, Indiana, switched from eastern to central time in April 2006.
-# From Alois Triendl (2019-07-09):
+# From Alois Treindl (2019-07-09):
 # The Indianapolis News, Friday 27 October 1967 states that Perry County
 # returned to CST.  It went again to EST on 27 April 1969, as documented by the
 # Indianapolis star of Saturday 26 April.
@@ -1003,7 +1008,7 @@ Rule Perry	1955	1960	-	Sep	lastSun	2:00	0	S
 Rule Perry	1956	1963	-	Apr	lastSun	2:00	1:00	D
 Rule Perry	1961	1963	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Tell_City -5:47:03 - LMT	1883 Nov 18 12:12:57
+Zone America/Indiana/Tell_City -5:47:03 - LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1946
 			-6:00 Perry	C%sT	1964 Apr 26  2:00
 			-5:00	-	EST	1967 Oct 29  2:00
@@ -1020,7 +1025,7 @@ Rule	Pike	1955	1960	-	Sep	lastSun	2:00	0	S
 Rule	Pike	1956	1964	-	Apr	lastSun	2:00	1:00	D
 Rule	Pike	1961	1964	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Petersburg -5:49:07 - LMT	1883 Nov 18 12:10:53
+Zone America/Indiana/Petersburg -5:49:07 - LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1955
 			-6:00	Pike	C%sT	1965 Apr 25  2:00
 			-5:00	-	EST	1966 Oct 30  2:00
@@ -1042,7 +1047,7 @@ Rule	Starke	1955	1956	-	Oct	lastSun	2:00	0	S
 Rule	Starke	1957	1958	-	Sep	lastSun	2:00	0	S
 Rule	Starke	1959	1961	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Knox -5:46:30 -	LMT	1883 Nov 18 12:13:30
+Zone America/Indiana/Knox -5:46:30 -	LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1947
 			-6:00	Starke	C%sT	1962 Apr 29  2:00
 			-5:00	-	EST	1963 Oct 27  2:00
@@ -1058,7 +1063,7 @@ Rule	Pulaski	1946	1954	-	Sep	lastSun	2:00	0	S
 Rule	Pulaski	1955	1956	-	Oct	lastSun	2:00	0	S
 Rule	Pulaski	1957	1960	-	Sep	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Winamac -5:46:25 - LMT	1883 Nov 18 12:13:35
+Zone America/Indiana/Winamac -5:46:25 - LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1946
 			-6:00	Pulaski	C%sT	1961 Apr 30  2:00
 			-5:00	-	EST	1969
@@ -1069,7 +1074,7 @@ Zone America/Indiana/Winamac -5:46:25 - LMT	1883 Nov 18 12:13:35
 #
 # Switzerland County, Indiana, did not observe DST from 1973 through 2005.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Indiana/Vevay -5:40:16 -	LMT	1883 Nov 18 12:19:44
+Zone America/Indiana/Vevay -5:40:16 -	LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1954 Apr 25  2:00
 			-5:00	-	EST	1969
 			-5:00	US	E%sT	1973
@@ -1105,7 +1110,7 @@ Rule Louisville	1950	1961	-	Apr	lastSun	2:00	1:00	D
 Rule Louisville	1950	1955	-	Sep	lastSun	2:00	0	S
 Rule Louisville	1956	1961	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Kentucky/Louisville -5:43:02 -	LMT	1883 Nov 18 12:16:58
+Zone America/Kentucky/Louisville -5:43:02 - LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1921
 			-6:00 Louisville C%sT	1942
 			-6:00	US	C%sT	1946
@@ -1139,7 +1144,7 @@ Zone America/Kentucky/Louisville -5:43:02 -	LMT	1883 Nov 18 12:16:58
 # Federal Register 65, 160 (2000-08-17), pp 50154-50158.
 # https://www.gpo.gov/fdsys/pkg/FR-2000-08-17/html/00-20854.htm
 #
-Zone America/Kentucky/Monticello -5:39:24 - LMT	1883 Nov 18 12:20:36
+Zone America/Kentucky/Monticello -5:39:24 - LMT	1883 Nov 18 18:00u
 			-6:00	US	C%sT	1946
 			-6:00	-	CST	1968
 			-6:00	US	C%sT	2000 Oct 29  2:00
@@ -1616,44 +1621,10 @@ Zone America/Moncton	-4:19:08 -	LMT	1883 Dec  9
 # From Paul Eggert (2020-01-10):
 # See America/Toronto for most of Quebec, including Montreal.
 # See America/Halifax for the Îles de la Madeleine and the Listuguj reserve.
-#
-# Matthews and Vincent (1998) also write that Quebec east of the -63
-# meridian is supposed to observe AST, but residents as far east as
-# Natashquan use EST/EDT, and residents east of Natashquan use AST.
-# The Quebec department of justice writes in
-# "The situation in Minganie and Basse-Côte-Nord"
-# https://www.justice.gouv.qc.ca/en/department/ministre/functions-and-responsabilities/legal-time-in-quebec/the-situation-in-minganie-and-basse-cote-nord/
-# that the coastal strip from just east of Natashquan to Blanc-Sablon
-# observes Atlantic standard time all year round.
-# This common practice was codified into law as of 2007; see Legal Time Act,
-# CQLR c T-5.1 <http://legisquebec.gouv.qc.ca/en/ShowDoc/cs/T-5.1>.
-# For lack of better info, guess this practice began around 1970, contra to
-# Shanks & Pottenger who have this region observing AST/ADT.
-
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Blanc-Sablon -3:48:28 -	LMT	1884
-			-4:00	Canada	A%sT	1970
-			-4:00	-	AST
+# See America/Puerto_Rico for east of Natashquan.
 
 # Ontario
 
-# From Paul Eggert (2006-07-09):
-# Shanks & Pottenger write that since 1970 most of Ontario has been like
-# Toronto.
-# Thunder Bay skipped DST in 1973.
-# Many smaller locales did not observe peacetime DST until 1974;
-# Nipigon (EST) and Rainy River (CST) are the largest that we know of.
-# Far west Ontario is like Winnipeg; far east Quebec is like Halifax.
-
-# From Jeffery Nichols (2020-02-06):
-# According to the [Shanks] atlas, those western Ontario zones are huge,
-# covering most of Ontario northwest of Sault Ste Marie and Timmins.
-# The zones seem to include towns bigger than the ones they're named after,
-# like Dryden in America/Rainy_River and Wawa (and maybe Attawapiskat) in
-# America/Nipigon.  I assume it's too much trouble to change the name of the
-# zone (like when you found out that America/Glace_Bay includes Sydney, Nova
-# Scotia)....
-
 # From Mark Brader (2003-07-26):
 # [According to the Toronto Star] Orillia, Ontario, adopted DST
 # effective Saturday, 1912-06-22, 22:00; the article mentions that
@@ -1672,67 +1643,8 @@ Zone America/Blanc-Sablon -3:48:28 -	LMT	1884
 # time became a comic failure in Orillia. Toronto Star 2017-07-08.
 # https://www.thestar.com/news/insight/2017/07/08/bold-attempt-at-daylight-saving-time-became-a-comic-failure-in-orillia.html
 
-# From Paul Eggert (1997-10-17):
-# Mark Brader writes that an article in the 1997-10-14 Toronto Star
-# says that Atikokan, Ontario currently does not observe DST,
-# but will vote on 11-10 whether to use EST/EDT.
-# He also writes that the Ontario Time Act (1990, Chapter T.9)
-# http://www.gov.on.ca/MBS/english/publications/statregs/conttext.html
-# says that Ontario east of 90W uses EST/EDT, and west of 90W uses CST/CDT.
-# Officially Atikokan is therefore on CST/CDT, and most likely this report
-# concerns a non-official time observed as a matter of local practice.
-#
-# From Paul Eggert (2000-10-02):
-# Matthews and Vincent (1998) write that Atikokan, Pickle Lake, and
-# New Osnaburgh observe CST all year, that Big Trout Lake observes
-# CST/CDT, and that Upsala and Shebandowan observe EST/EDT, all in
-# violation of the official Ontario rules.
-#
-# From Paul Eggert (2006-07-09):
-# Chris Walton (2006-07-06) mentioned an article by Stephanie MacLellan in the
-# 2005-07-21 Chronicle-Journal, which said:
-#
-#	The clocks in Atikokan stay set on standard time year-round.
-#	This means they spend about half the time on central time and
-#	the other half on eastern time.
-#
-#	For the most part, the system works, Mayor Dennis Brown said.
-#
-#	"The majority of businesses in Atikokan deal more with Eastern
-#	Canada, but there are some that deal with Western Canada," he
-#	said.  "I don't see any changes happening here."
-#
-# Walton also writes "Supposedly Pickle Lake and Mishkeegogamang
-# [New Osnaburgh] follow the same practice."
-
-# From Garry McKinnon (2006-07-14) via Chris Walton:
-# I chatted with a member of my board who has an outstanding memory
-# and a long history in Atikokan (and in the telecom industry) and he
-# can say for certain that Atikokan has been practicing the current
-# time keeping since 1952, at least.
-
-# From Paul Eggert (2006-07-17):
-# Shanks & Pottenger say that Atikokan has agreed with Rainy River
-# ever since standard time was introduced, but the information from
-# McKinnon sounds more authoritative.  For now, assume that Atikokan
-# switched to EST immediately after WWII era daylight saving time
-# ended.  This matches the old (less-populous) America/Coral_Harbour
-# entry since our cutoff date of 1970, so we can move
-# America/Coral_Harbour to the 'backward' file.
-
 # From Mark Brader (2010-03-06):
 #
-# Currently the database has:
-#
-# # Ontario
-#
-# # From Paul Eggert (2006-07-09):
-# # Shanks & Pottenger write that since 1970 most of Ontario has been like
-# # Toronto.
-# # Thunder Bay skipped DST in 1973.
-# # Many smaller locales did not observe peacetime DST until 1974;
-# # Nipigon (EST) and Rainy River (CST) are the largest that we know of.
-#
 # In the (Toronto) Globe and Mail for Saturday, 1955-09-24, in the bottom
 # right corner of page 1, it says that Toronto will return to standard
 # time at 2 am Sunday morning (which agrees with the database), and that:
@@ -1740,10 +1652,8 @@ Zone America/Blanc-Sablon -3:48:28 -	LMT	1884
 #     The one-hour setback will go into effect throughout most of Ontario,
 #     except in areas like Windsor which remains on standard time all year.
 #
-# Windsor is, of course, a lot larger than Nipigon.
-#
-# I only came across this incidentally.  I don't know if Windsor began
-# observing DST when Detroit did, or in 1974, or on some other date.
+# ... I don't know if Windsor began observing DST when Detroit did,
+# or in 1974, or on some other date.
 #
 # By the way, the article continues by noting that:
 #
@@ -1825,23 +1735,7 @@ Rule	Toronto	1951	1956	-	Sep	lastSun	2:00	0	S
 # Toronto Star, which said that DST was ending 1971-10-31 as usual.
 Rule	Toronto	1957	1973	-	Oct	lastSun	2:00	0	S
 
-# From Paul Eggert (2003-07-27):
-# Willett (1914-03) writes (p. 17) "In the Cities of Fort William, and
-# Port Arthur, Ontario, the principle of the Bill has been in
-# operation for the past three years, and in the City of Moose Jaw,
-# Saskatchewan, for one year."
-
-# From David Bryan via Tory Tronrud, Director/Curator,
-# Thunder Bay Museum (2003-11-12):
-# There is some suggestion, however, that, by-law or not, daylight
-# savings time was being practiced in Fort William and Port Arthur
-# before 1909.... [I]n 1910, the line between the Eastern and Central
-# Time Zones was permanently moved about two hundred miles west to
-# include the Thunder Bay area....  When Canada adopted daylight
-# savings time in 1916, Fort William and Port Arthur, having done so
-# already, did not change their clocks....  During the Second World
-# War,... [t]he cities agreed to implement DST during the summer
-# months for the remainder of the war years.
+# The Bahamas match Toronto since 1970.
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone America/Toronto	-5:17:32 -	LMT	1895
@@ -1850,26 +1744,7 @@ Zone America/Toronto	-5:17:32 -	LMT	1895
 			-5:00	Canada	E%sT	1946
 			-5:00	Toronto	E%sT	1974
 			-5:00	Canada	E%sT
-Zone America/Thunder_Bay -5:57:00 -	LMT	1895
-			-6:00	-	CST	1910
-			-5:00	-	EST	1942
-			-5:00	Canada	E%sT	1970
-			-5:00	Toronto	E%sT	1973
-			-5:00	-	EST	1974
-			-5:00	Canada	E%sT
-Zone America/Nipigon	-5:53:04 -	LMT	1895
-			-5:00	Canada	E%sT	1940 Sep 29
-			-5:00	1:00	EDT	1942 Feb  9  2:00s
-			-5:00	Canada	E%sT
-Zone America/Rainy_River -6:18:16 -	LMT	1895
-			-6:00	Canada	C%sT	1940 Sep 29
-			-6:00	1:00	CDT	1942 Feb  9  2:00s
-			-6:00	Canada	C%sT
-Zone America/Atikokan	-6:06:28 -	LMT	1895
-			-6:00	Canada	C%sT	1940 Sep 29
-			-6:00	1:00	CDT	1942 Feb  9  2:00s
-			-6:00	Canada	C%sT	1945 Sep 30  2:00
-			-5:00	-	EST
+# For Atikokan see America/Panama.
 
 
 # Manitoba
@@ -2021,7 +1896,7 @@ Zone America/Swift_Current -7:11:20 -	LMT	1905 Sep
 
 # Alberta
 
-# From Alois Triendl (2019-07-19):
+# From Alois Treindl (2019-07-19):
 # There was no DST in Alberta in 1967... Calgary Herald, 29 April 1967.
 # 1969, no DST, from Edmonton Journal 18 April 1969
 #
@@ -2060,60 +1935,6 @@ Zone America/Edmonton	-7:33:52 -	LMT	1906 Sep
 # Shanks & Pottenger write that since 1970 most of this region has
 # been like Vancouver.
 # Dawson Creek uses MST.  Much of east BC is like Edmonton.
-# Matthews and Vincent (1998) write that Creston is like Dawson Creek.
-
-# It seems though that (re: Creston) is not entirely correct:
-
-# From Chris Walton (2011-12-01):
-# There are two areas within the Canadian province of British Columbia
-# that do not currently observe daylight saving:
-# a) The Creston Valley (includes the town of Creston and surrounding area)
-# b) The eastern half of the Peace River Regional District
-# (includes the cities of Dawson Creek and Fort St. John)
-
-# Earlier this year I stumbled across a detailed article about the time
-# keeping history of Creston; it was written by Tammy Hardwick who is the
-# manager of the Creston & District Museum. The article was written in May 2009.
-# http://www.ilovecreston.com/?p=articles&t=spec&ar=260
-# According to the article, Creston has not changed its clocks since June 1918.
-# i.e. Creston has been stuck on UT-7 for 93 years.
-# Dawson Creek, on the other hand, changed its clocks as recently as April 1972.
-
-# Unfortunately the exact date for the time change in June 1918 remains
-# unknown and will be difficult to ascertain.  I e-mailed Tammy a few months
-# ago to ask if Sunday June 2 was a reasonable guess.  She said it was just
-# as plausible as any other date (in June).  She also said that after writing
-# the article she had discovered another time change in 1916; this is the
-# subject of another article which she wrote in October 2010.
-# http://www.creston.museum.bc.ca/index.php?module=comments&uop=view_comment&cm+id=56
-
-# Here is a summary of the three clock change events in Creston's history:
-# 1. 1884 or 1885: adoption of Mountain Standard Time (GMT-7)
-# Exact date unknown
-# 2. Oct 1916: switch to Pacific Standard Time (GMT-8)
-# Exact date in October unknown; Sunday October 1 is a reasonable guess.
-# 3. June 1918: switch to Pacific Daylight Time (GMT-7)
-# Exact date in June unknown; Sunday June 2 is a reasonable guess.
-# note 1:
-# On Oct 27/1918 when daylight saving ended in the rest of Canada,
-# Creston did not change its clocks.
-# note 2:
-# During WWII when the Federal Government legislated a mandatory clock change,
-# Creston did not oblige.
-# note 3:
-# There is no guarantee that Creston will remain on Mountain Standard Time
-# (UTC-7) forever.
-# The subject was debated at least once this year by the town Council.
-# http://www.bclocalnews.com/kootenay_rockies/crestonvalleyadvance/news/116760809.html
-
-# During a period WWII, summer time (Daylight saying) was mandatory in Canada.
-# In Creston, that was handled by shifting the area to PST (-8:00) then applying
-# summer time to cause the offset to be -7:00, the same as it had been before
-# the change.  It can be argued that the timezone abbreviation during this
-# period should be PDT rather than MST, but that doesn't seem important enough
-# (to anyone) to further complicate the rules.
-
-# The transition dates (and times) are guesses.
 
 # From Matt Johnson (2015-09-21):
 # Fort Nelson, BC, Canada will cancel DST this year.  So while previously they
@@ -2130,7 +1951,7 @@ Zone America/Edmonton	-7:33:52 -	LMT	1906 Sep
 #
 # From Paul Eggert (2019-07-25):
 # Shanks says Fort Nelson did not observe DST in 1946, unlike Vancouver.
-# Alois Triendl confirmed this on 07-22, citing the 1946-04-27 Vancouver Daily
+# Alois Treindl confirmed this on 07-22, citing the 1946-04-27 Vancouver Daily
 # Province.  He also cited the 1946-09-28 Victoria Daily Times, which said
 # that Vancouver, Victoria, etc. "change at midnight Saturday"; for now,
 # guess they meant 02:00 Sunday since 02:00 was common practice in Vancouver.
@@ -2167,10 +1988,7 @@ Zone America/Fort_Nelson	-8:10:47 -	LMT	1884
 			-8:00	Vanc	P%sT	1987
 			-8:00	Canada	P%sT	2015 Mar  8  2:00
 			-7:00	-	MST
-Zone America/Creston	-7:46:04 -	LMT	1884
-			-7:00	-	MST	1916 Oct 1
-			-8:00	-	PST	1918 Jun 2
-			-7:00	-	MST
+# For Creston see America/Phoenix.
 
 # Northwest Territories, Nunavut, Yukon
 
@@ -2758,7 +2576,15 @@ Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
 # 5- The islands, reefs and keys shall take their timezone from the
 #    longitude they are located at.
 
+# From Paul Eggert (2022-10-28):
+# The new Mexican law was published today:
+# https://www.dof.gob.mx/nota_detalle.php?codigo=5670045&fecha=28/10/2022
+# This abolishes DST except where US DST rules are observed,
+# and in addition changes all of Chihuahua to -06 with no DST.
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
+Rule	Mexico	1931	only	-	May	1	23:00	1:00	D
+Rule	Mexico	1931	only	-	Oct	1	0:00	0	S
 Rule	Mexico	1939	only	-	Feb	5	0:00	1:00	D
 Rule	Mexico	1939	only	-	Jun	25	0:00	0	S
 Rule	Mexico	1940	only	-	Dec	9	0:00	1:00	D
@@ -2771,17 +2597,17 @@ Rule	Mexico	1996	2000	-	Apr	Sun>=1	2:00	1:00	D
 Rule	Mexico	1996	2000	-	Oct	lastSun	2:00	0	S
 Rule	Mexico	2001	only	-	May	Sun>=1	2:00	1:00	D
 Rule	Mexico	2001	only	-	Sep	lastSun	2:00	0	S
-Rule	Mexico	2002	max	-	Apr	Sun>=1	2:00	1:00	D
-Rule	Mexico	2002	max	-	Oct	lastSun	2:00	0	S
+Rule	Mexico	2002	2022	-	Apr	Sun>=1	2:00	1:00	D
+Rule	Mexico	2002	2022	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 # Quintana Roo; represented by Cancún
-Zone America/Cancun	-5:47:04 -	LMT	1922 Jan  1  0:12:56
+Zone America/Cancun	-5:47:04 -	LMT	1922 Jan  1  6:00u
 			-6:00	-	CST	1981 Dec 23
 			-5:00	Mexico	E%sT	1998 Aug  2  2:00
 			-6:00	Mexico	C%sT	2015 Feb  1  2:00
 			-5:00	-	EST
 # Campeche, Yucatán; represented by Mérida
-Zone America/Merida	-5:58:28 -	LMT	1922 Jan  1  0:01:32
+Zone America/Merida	-5:58:28 -	LMT	1922 Jan  1  6:00u
 			-6:00	-	CST	1981 Dec 23
 			-5:00	-	EST	1982 Dec  2
 			-6:00	Mexico	C%sT
@@ -2795,23 +2621,21 @@ Zone America/Merida	-5:58:28 -	LMT	1922 Jan  1  0:01:32
 # See: Inicia mañana Horario de Verano en zona fronteriza, El Universal,
 # 2016-03-12
 # http://www.eluniversal.com.mx/articulo/estados/2016/03/12/inicia-manana-horario-de-verano-en-zona-fronteriza
-Zone America/Matamoros	-6:40:00 -	LMT	1921 Dec 31 23:20:00
+Zone America/Matamoros	-6:30:00 -	LMT	1922 Jan  1  6:00u
 			-6:00	-	CST	1988
 			-6:00	US	C%sT	1989
 			-6:00	Mexico	C%sT	2010
 			-6:00	US	C%sT
 # Durango; Coahuila, Nuevo León, Tamaulipas (away from US border)
-Zone America/Monterrey	-6:41:16 -	LMT	1921 Dec 31 23:18:44
+Zone America/Monterrey	-6:41:16 -	LMT	1922 Jan  1  6:00u
 			-6:00	-	CST	1988
 			-6:00	US	C%sT	1989
 			-6:00	Mexico	C%sT
 # Central Mexico
-Zone America/Mexico_City -6:36:36 -	LMT	1922 Jan  1  0:23:24
+Zone America/Mexico_City -6:36:36 -	LMT	1922 Jan  1  7:00u
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
-			-7:00	-	MST	1931 May  1 23:00
-			-6:00	-	CST	1931 Oct
-			-7:00	-	MST	1932 Apr  1
+			-7:00	Mexico	M%sT	1932 Apr  1
 			-6:00	Mexico	C%sT	2001 Sep 30  2:00
 			-6:00	-	CST	2002 Feb 20
 			-6:00	Mexico	C%sT
@@ -2819,35 +2643,31 @@ Zone America/Mexico_City -6:36:36 -	LMT	1922 Jan  1  0:23:24
 # This includes the municipalities of Janos, Ascensión, Juárez, Guadalupe,
 # Práxedis G Guerrero, Coyame del Sotol, Ojinaga, and Manuel Benavides.
 # (See the 2016-03-12 El Universal source mentioned above.)
-Zone America/Ojinaga	-6:57:40 -	LMT	1922 Jan  1  0:02:20
+Zone America/Ojinaga	-6:57:40 -	LMT	1922 Jan  1  7:00u
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
-			-7:00	-	MST	1931 May  1 23:00
-			-6:00	-	CST	1931 Oct
-			-7:00	-	MST	1932 Apr  1
+			-7:00	Mexico	M%sT	1932 Apr  1
 			-6:00	-	CST	1996
 			-6:00	Mexico	C%sT	1998
 			-6:00	-	CST	1998 Apr Sun>=1  3:00
 			-7:00	Mexico	M%sT	2010
-			-7:00	US	M%sT
+			-7:00	US	M%sT	2022 Oct 30  2:00
+			-6:00	-	CST
 # Chihuahua (away from US border)
-Zone America/Chihuahua	-7:04:20 -	LMT	1921 Dec 31 23:55:40
+Zone America/Chihuahua	-7:04:20 -	LMT	1922 Jan  1  7:00u
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
-			-7:00	-	MST	1931 May  1 23:00
-			-6:00	-	CST	1931 Oct
-			-7:00	-	MST	1932 Apr  1
+			-7:00	Mexico	M%sT	1932 Apr  1
 			-6:00	-	CST	1996
 			-6:00	Mexico	C%sT	1998
 			-6:00	-	CST	1998 Apr Sun>=1  3:00
-			-7:00	Mexico	M%sT
+			-7:00	Mexico	M%sT	2022 Oct 30  2:00
+			-6:00	-	CST
 # Sonora
-Zone America/Hermosillo	-7:23:52 -	LMT	1921 Dec 31 23:36:08
+Zone America/Hermosillo	-7:23:52 -	LMT	1922 Jan  1  7:00u
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
-			-7:00	-	MST	1931 May  1 23:00
-			-6:00	-	CST	1931 Oct
-			-7:00	-	MST	1932 Apr  1
+			-7:00	Mexico	M%sT	1932 Apr  1
 			-6:00	-	CST	1942 Apr 24
 			-7:00	-	MST	1949 Jan 14
 			-8:00	-	PST	1970
@@ -2882,24 +2702,20 @@ Zone America/Hermosillo	-7:23:52 -	LMT	1921 Dec 31 23:36:08
 # Use "Bahia_Banderas" to keep the name to fourteen characters.
 
 # Mazatlán
-Zone America/Mazatlan	-7:05:40 -	LMT	1921 Dec 31 23:54:20
+Zone America/Mazatlan	-7:05:40 -	LMT	1922 Jan  1  7:00u
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
-			-7:00	-	MST	1931 May  1 23:00
-			-6:00	-	CST	1931 Oct
-			-7:00	-	MST	1932 Apr  1
+			-7:00	Mexico	M%sT	1932 Apr  1
 			-6:00	-	CST	1942 Apr 24
 			-7:00	-	MST	1949 Jan 14
 			-8:00	-	PST	1970
 			-7:00	Mexico	M%sT
 
 # Bahía de Banderas
-Zone America/Bahia_Banderas	-7:01:00 -	LMT	1921 Dec 31 23:59:00
+Zone America/Bahia_Banderas -7:01:00 -	LMT	1922 Jan  1  7:00u
 			-7:00	-	MST	1927 Jun 10 23:00
 			-6:00	-	CST	1930 Nov 15
-			-7:00	-	MST	1931 May  1 23:00
-			-6:00	-	CST	1931 Oct
-			-7:00	-	MST	1932 Apr  1
+			-7:00	Mexico	M%sT	1932 Apr  1
 			-6:00	-	CST	1942 Apr 24
 			-7:00	-	MST	1949 Jan 14
 			-8:00	-	PST	1970
@@ -2907,7 +2723,7 @@ Zone America/Bahia_Banderas	-7:01:00 -	LMT	1921 Dec 31 23:59:00
 			-6:00	Mexico	C%sT
 
 # Baja California
-Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  0:11:56
+Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  7:00u
 			-7:00	-	MST	1924
 			-8:00	-	PST	1927 Jun 10 23:00
 			-7:00	-	MST	1930 Nov 15
@@ -2944,72 +2760,66 @@ Zone America/Tijuana	-7:48:04 -	LMT	1922 Jan  1  0:11:56
 # http://dof.gob.mx/nota_detalle.php?codigo=5127480&fecha=06/01/2010
 # It has been moved to the 'backward' file.
 #
+# From Paul Eggert (2022-10-28):
+# Today's new law states that the entire state of Baja California
+# follows US DST rules, which agrees with simplifications noted above.
+#
 #
 # Revillagigedo Is
 # no information
 
 ###############################################################################
 
-# Anguilla
-# Antigua and Barbuda
-# See America/Port_of_Spain.
-
-# Bahamas
-#
-# 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]
-Zone	America/Nassau	-5:09:30 -	LMT	1912 Mar 2
-			-5:00	Bahamas	E%sT	1976
-			-5:00	US	E%sT
-
 # Barbados
 
-# For 1899 Milne gives -3:58:29.2; round that.
+# For 1899 Milne gives -3:58:29.2.
+
+# From P Chan (2020-12-09 and 2020-12-11):
+# Standard time of GMT-4 was adopted in 1911.
+# Definition of Time Act, 1911 (1911-7) [1911-08-28]
+# 1912, Laws of Barbados (5 v.), OCLC Number: 919801291, Vol. 4, Image No. 522
+# 1944, Laws of Barbados (5 v.), OCLC Number: 84548697, Vol. 4, Image No. 122
+# http://llmc.com/browse.aspx?type=2&coll=85&div=297
+#
+# DST was observed in 1942-44.
+# Defence (Daylight Saving) Regulations, 1942, 1942-04-13
+# Defence (Daylight Saving) (Repeal) Regulations, 1942, 1942-08-22
+# Defence (Daylight Saving) Regulations, 1943, 1943-04-16
+# Defence (Daylight Saving) (Repeal) Regulations, 1943, 1943-09-01
+# Defence (Daylight Saving) Regulations, 1944, 1944-03-21
+# [Defence (Daylight Saving) (Amendment) Regulations 1944, 1944-03-28]
+# Defence (Daylight Saving) (Repeal) Regulations, 1944, 1944-08-30
+#
+# 1914-, Subsidiary Legis., Annual Vols. OCLC Number: 226290591
+# 1942: Image Nos. 527-528, 555-556
+# 1943: Image Nos. 178-179, 198
+# 1944: Image Nos. 113-115, 129
+# http://llmc.com/titledescfull.aspx?type=2&coll=85&div=297&set=98437
+#
+# From Tim Parenti (2021-02-20):
+# The transitions below are derived from P Chan's sources, except that the 1977
+# through 1980 transitions are from Shanks & Pottenger since we have no better
+# data there.  Of particular note, the 1944 DST regulation only advanced the
+# time to "exactly three and a half hours later than Greenwich mean time", as
+# opposed to "three hours" in the 1942 and 1943 regulations.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
+Rule	Barb	1942	only	-	Apr	19	5:00u	1:00	D
+Rule	Barb	1942	only	-	Aug	31	6:00u	0	S
+Rule	Barb	1943	only	-	May	 2	5:00u	1:00	D
+Rule	Barb	1943	only	-	Sep	 5	6:00u	0	S
+Rule	Barb	1944	only	-	Apr	10	5:00u	0:30	-
+Rule	Barb	1944	only	-	Sep	10	6:00u	0	S
 Rule	Barb	1977	only	-	Jun	12	2:00	1:00	D
 Rule	Barb	1977	1978	-	Oct	Sun>=1	2:00	0	S
 Rule	Barb	1978	1980	-	Apr	Sun>=15	2:00	1:00	D
 Rule	Barb	1979	only	-	Sep	30	2:00	0	S
 Rule	Barb	1980	only	-	Sep	25	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Barbados	-3:58:29 -	LMT	1924 # Bridgetown
-			-3:58:29 -	BMT	1932 # Bridgetown Mean Time
+		#STDOFF	-3:58:29.2
+Zone America/Barbados	-3:58:29 -	LMT	1911 Aug 28 # Bridgetown
+			-4:00	Barb	A%sT	1944
+			-4:00	Barb	AST/-0330 1945
 			-4:00	Barb	A%sT
 
 # Belize
@@ -3067,10 +2877,10 @@ Zone	America/Belize	-5:52:48 -	LMT	1912 Apr  1
 
 # Bermuda
 
-# From Paul Eggert (2020-11-24):
+# From Paul Eggert (2022-07-27):
 # For 1899 Milne gives -4:19:18.3 as the meridian of the clock tower,
 # Bermuda dockyard, Ireland I.  This agrees with standard offset given in the
-# Daylight Saving Act, 1917 cited below.  Round that to the nearest second.
+# Daylight Saving Act, 1917 cited below.
 # 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]
@@ -3165,18 +2975,16 @@ 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]
+		#STDOFF	-4:19:18.3
 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
 
-# Cayman Is
-# See America/Panama.
-
 # Costa Rica
 
-# Milne gives -5:36:13.3 as San José mean time; round to nearest.
+# Milne gives -5:36:13.3 as San José mean time.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	CR	1979	1980	-	Feb	lastSun	0:00	1:00	D
@@ -3188,6 +2996,7 @@ Rule	CR	1991	only	-	Jul	 1	0:00	0	S
 Rule	CR	1992	only	-	Mar	15	0:00	0	S
 # There are too many San Josés elsewhere, so we'll use 'Costa Rica'.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
+		#STDOFF	-5:36:13.3
 Zone America/Costa_Rica	-5:36:13 -	LMT	1890        # San José
 			-5:36:13 -	SJMT	1921 Jan 15 # San José Mean Time
 			-6:00	CR	C%sT
@@ -3398,9 +3207,6 @@ Zone	America/Havana	-5:29:28 -	LMT	1890
 			-5:29:36 -	HMT	1925 Jul 19 12:00 # Havana MT
 			-5:00	Cuba	C%sT
 
-# Dominica
-# See America/Port_of_Spain.
-
 # Dominican Republic
 
 # From Steffen Thorsen (2000-10-30):
@@ -3447,12 +3253,6 @@ Rule	Salv	1987	1988	-	Sep	lastSun	0:00	0	S
 Zone America/El_Salvador -5:56:48 -	LMT	1921 # San Salvador
 			-6:00	Salv	C%sT
 
-# Grenada
-# Guadeloupe
-# St Barthélemy
-# St Martin (French part)
-# See America/Port_of_Spain.
-
 # Guatemala
 #
 # From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
@@ -3610,7 +3410,7 @@ Zone America/Tegucigalpa -5:48:52 -	LMT	1921 Apr
 # Jamaica
 # Shanks & Pottenger give -5:07:12, but Milne records -5:07:10.41 from an
 # unspecified official document, and says "This time is used throughout the
-# island".  Go with Milne.  Round to the nearest second as required by zic.
+# island".  Go with Milne.
 #
 # Shanks & Pottenger give April 28 for the 1974 spring-forward transition, but
 # Lance Neita writes that Prime Minister Michael Manley decreed it January 5.
@@ -3623,6 +3423,7 @@ Zone America/Tegucigalpa -5:48:52 -	LMT	1921 Apr
 # http://www.jamaicaobserver.com/columns/The-politician-in-all-of-us_17573647
 #
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
+		#STDOFF	-5:07:10.41
 Zone	America/Jamaica	-5:07:10 -	LMT	1890        # Kingston
 			-5:07:10 -	KMT	1912 Feb    # Kingston Mean Time
 			-5:00	-	EST	1974
@@ -3637,9 +3438,6 @@ Zone America/Martinique	-4:04:20 -      LMT	1890        # Fort-de-France
 			-4:00	1:00	ADT	1980 Sep 28
 			-4:00	-	AST
 
-# Montserrat
-# See America/Port_of_Spain.
-
 # Nicaragua
 #
 # This uses Shanks & Pottenger for times before 2005.
@@ -3705,14 +3503,33 @@ Zone	America/Managua	-5:45:08 -	LMT	1890
 			-5:00	-	EST	1997
 			-6:00	Nic	C%sT
 
+# Cayman Is
 # Panama
+#
+# Atikokan and Coral Harbour, Canada, match Panama since 1970.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	America/Panama	-5:18:08 -	LMT	1890
 			-5:19:36 -	CMT	1908 Apr 22 # Colón Mean Time
 			-5:00	-	EST
-Link America/Panama America/Cayman
 
+# Anguilla
+# Antigua & Barbuda
+# Aruba
+# Caribbean Netherlands
+# Curaçao
+# Dominica
+# Grenada
+# Guadeloupe
+# Montserrat
 # Puerto Rico
+# St Barthélemy
+# St Kitts-Nevis
+# Sint Maarten / St Martin
+# St Lucia
+# St Vincent & the Grenadines
+# Trinidad & Tobago
+# Virgin Is (UK & US)
+#
 # There are too many San Juans elsewhere, so we'll use 'Puerto_Rico'.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone America/Puerto_Rico -4:24:25 -	LMT	1899 Mar 28 12:00 # San Juan
@@ -3720,10 +3537,6 @@ Zone America/Puerto_Rico -4:24:25 -	LMT	1899 Mar 28 12:00 # San Juan
 			-4:00	US	A%sT	1946
 			-4:00	-	AST
 
-# St Kitts-Nevis
-# St Lucia
-# See America/Port_of_Spain.
-
 # St Pierre and Miquelon
 # There are too many St Pierres elsewhere, so we'll use 'Miquelon'.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
@@ -3732,9 +3545,6 @@ Zone America/Miquelon	-3:44:40 -	LMT	1911 May 15 # St Pierre
 			-3:00	-	-03	1987
 			-3:00	Canada	-03/-02
 
-# St Vincent and the Grenadines
-# See America/Port_of_Spain.
-
 # Turks and Caicos
 #
 # From Chris Dunn in
@@ -3797,17 +3607,13 @@ Zone America/Miquelon	-3:44:40 -	LMT	1911 May 15 # St Pierre
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone America/Grand_Turk	-4:44:32 -	LMT	1890
+		#STDOFF	-5:07:10.41
 			-5:07:10 -	KMT	1912 Feb # Kingston Mean Time
 			-5:00	-	EST	1979
 			-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
-# Virgin Is
-# See America/Port_of_Spain.
-
-
 # Local Variables:
 # coding: utf-8
 # End:

make/data/tzdata/southamerica

@@ -423,6 +423,7 @@ Rule	Arg	2008	only	-	Oct	Sun>=15	0:00	1:00	-
 #
 # Buenos Aires (BA), Capital Federal (CF),
 Zone America/Argentina/Buenos_Aires -3:53:48 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May    # Córdoba Mean Time
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -440,6 +441,7 @@ Zone America/Argentina/Buenos_Aires -3:53:48 - LMT	1894 Oct 31
 # - Santiago del Estero switched to -4:00 on 1991-04-01,
 #   then to -3:00 on 1991-04-26.
 #
+		#STDOFF	       -4:16:48.25
 Zone America/Argentina/Cordoba -4:16:48 - LMT	1894 Oct 31
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
@@ -452,6 +454,7 @@ Zone America/Argentina/Cordoba -4:16:48 - LMT	1894 Oct 31
 #
 # Salta (SA), La Pampa (LP), Neuquén (NQ), Rio Negro (RN)
 Zone America/Argentina/Salta -4:21:40 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -464,6 +467,7 @@ Zone America/Argentina/Salta -4:21:40 - LMT	1894 Oct 31
 #
 # Tucumán (TM)
 Zone America/Argentina/Tucuman -4:20:52 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -477,6 +481,7 @@ Zone America/Argentina/Tucuman -4:20:52 - LMT	1894 Oct 31
 #
 # La Rioja (LR)
 Zone America/Argentina/La_Rioja -4:27:24 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -491,6 +496,7 @@ Zone America/Argentina/La_Rioja -4:27:24 - LMT	1894 Oct 31
 #
 # San Juan (SJ)
 Zone America/Argentina/San_Juan -4:34:04 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -505,6 +511,7 @@ Zone America/Argentina/San_Juan -4:34:04 - LMT	1894 Oct 31
 #
 # Jujuy (JY)
 Zone America/Argentina/Jujuy -4:21:12 -	LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -520,6 +527,7 @@ Zone America/Argentina/Jujuy -4:21:12 -	LMT	1894 Oct 31
 #
 # Catamarca (CT), Chubut (CH)
 Zone America/Argentina/Catamarca -4:23:08 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -534,6 +542,7 @@ Zone America/Argentina/Catamarca -4:23:08 - LMT	1894 Oct 31
 #
 # Mendoza (MZ)
 Zone America/Argentina/Mendoza -4:35:16 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -556,6 +565,7 @@ Rule	SanLuis	2008	2009	-	Mar	Sun>=8	0:00	0	-
 Rule	SanLuis	2007	2008	-	Oct	Sun>=8	0:00	1:00	-
 
 Zone America/Argentina/San_Luis -4:25:24 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -574,6 +584,7 @@ Zone America/Argentina/San_Luis -4:25:24 - LMT	1894 Oct 31
 #
 # Santa Cruz (SC)
 Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -586,6 +597,7 @@ Zone America/Argentina/Rio_Gallegos -4:36:52 - LMT	1894 Oct 31
 #
 # Tierra del Fuego, Antártida e Islas del Atlántico Sur (TF)
 Zone America/Argentina/Ushuaia -4:33:12 - LMT	1894 Oct 31
+		#STDOFF	-4:16:48.25
 			-4:16:48 -	CMT	1920 May
 			-4:00	-	-04	1930 Dec
 			-4:00	Arg	-04/-03	1969 Oct  5
@@ -596,9 +608,6 @@ Zone America/Argentina/Ushuaia -4:33:12 - LMT	1894 Oct 31
 			-3:00	Arg	-03/-02	2008 Oct 18
 			-3:00	-	-03
 
-# Aruba
-Link America/Curacao America/Aruba
-
 # Bolivia
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	America/La_Paz	-4:32:36 -	LMT	1890
@@ -668,7 +677,7 @@ Zone	America/La_Paz	-4:32:36 -	LMT	1890
 
 # From Rodrigo Severo (2004-10-04):
 # It's just the biannual change made necessary by the much hyped, supposedly
-# modern Brazilian eletronic voting machines which, apparently, can't deal
+# modern Brazilian ... voting machines which, apparently, can't deal
 # with a time change between the first and the second rounds of the elections.
 
 # From Steffen Thorsen (2007-09-20):
@@ -1109,7 +1118,7 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 
 # Chile
 
-# From Paul Eggert (2015-04-03):
+# From Paul Eggert (2022-03-15):
 # Shanks & Pottenger says America/Santiago introduced standard time in
 # 1890 and rounds its UT offset to 70W40; guess that in practice this
 # was the same offset as in 1916-1919.  It also says Pacific/Easter
@@ -1132,7 +1141,7 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # Historia de la hora oficial de Chile (retrieved 2012-10-24).  See:
 # https://web.archive.org/web/20121024234627/http://www.horaoficial.cl/horaof.htm
 # A fancier Spanish version (requiring mouse-clicking) is at:
-# http://www.horaoficial.cl/historia_hora.html
+# http://www.horaoficial.cl/historia_hora.php
 # Conflicts between [1] and [2] were resolved as follows:
 #
 #  - [1] says the 1910 transition was Jan 1, [2] says Jan 10 and cites
@@ -1141,7 +1150,8 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 #  - [1] says SMT was -4:42:45, [2] says Chile's official time from
 #    1916 to 1919 was -4:42:46.3, the meridian of Chile's National
 #    Astronomical Observatory (OAN), then located in what is now
-#    Quinta Normal in Santiago.  Go with [2], rounding it to -4:42:46.
+#    Quinta Normal in Santiago.  Go with [1], as this matches the meridian
+#    referred to by the relevant Chilean laws to this day.
 #
 #  - [1] says the 1918 transition was Sep 1, [2] says Sep 10 and cites
 #    Boletín No. 22, Aviso No. 129/1918 (1918-08-23).  Go with [2].
@@ -1163,6 +1173,39 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # this is known to work for DST transitions starting in 2008 and
 # may well be true for earlier transitions.
 
+# From Tim Parenti (2022-07-06):
+# For a brief period of roughly six weeks in 1946, DST was only observed on an
+# emergency basis in specific regions of central Chile; namely, "the national
+# territory between the provinces of Coquimbo and Concepción, inclusive".
+# This was enacted by Decree 3,891, dated 1946-07-13, and took effect
+# 1946-07-14 24:00, advancing these central regions to -03.
+# https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460715/#page/1
+# The decree contemplated "[t]hat this advancement of the Official Time, even
+# though it has been proposed for the cities of Santiago and Valparaíso only,
+# must be agreed with that of other cities, due to the connection of various
+# activities that require it, such as, for example, the operation of rail
+# services".  It was originally set to expire after 30 days but was extended
+# through 1946-08-31 by Decree 4,506, dated 1946-08-13.
+# https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460814/#page/1
+#
+# Law Number 8,522, promulgated 1946-08-27, reunified Chilean clocks at their
+# new "Summer Time" of -04, reckoned as that of "the meridian of the
+# Astronomical Observatory of Lo Espejo, advanced by 42 minutes and 45
+# seconds".  Although this law specified the new Summer Time to start on 1
+# September each year, a special "transitional article" started it a few days
+# early, as soon as the law took effect.  As the law was to take force "from
+# the date of its publication in the 'Diario Oficial', which happened the
+# following day, presume the change took place in Santiago and its environs
+# from 24:00 -03 to 23:00 -04 on Wednesday 1946-08-28.  Although this was a
+# no-op for wall clocks in the north and south of the country, put their formal
+# start to DST an hour later when they reached 24:00 -04.
+# https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19460828/#page/1
+# After a brief "Winter Time" stint at -05 beginning 1947-04-01, Law Number
+# 8,777, promulgated 1947-05-17, established year-round -04 "from 23:00 on the
+# second day after it is published in the 'Diario Oficial'."  It was published
+# on Monday 1947-05-19 and so took effect from Wednesday 1947-05-21 23:00.
+# https://www.diariooficial.interior.gob.cl/versiones-anteriores/do-h/19470519/#page/1
+
 # From Eduardo Krell (1995-10-19):
 # The law says to switch to DST at midnight [24:00] on the second SATURDAY
 # of October....  The law is the same for March and October.
@@ -1275,11 +1318,25 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # So we extend the new rules on Saturdays at 24:00 mainland time indefinitely.
 # From Juan Correa (2019-02-04):
 # http://www.diariooficial.interior.gob.cl/publicaciones/2018/11/23/42212/01/1498738.pdf
-# From Paul Eggert (2019-09-01):
-# The above says the Magallanes exception expires 2022-04-02 at 24:00,
-# so in theory, they will revert to -04/-03 after that.
-# For now, assume that they will not revert,
-# since they have extended the expiration date once already.
+
+# From Juan Correa (2022-04-02):
+# I found there was a decree published last Thursday that will keep
+# Magallanes region to UTC -3 "indefinitely". The decree is available at
+# https://www.diariooficial.interior.gob.cl/publicaciones/2022/03/31/43217-B/01/2108910.pdf
+
+# From Juan Correa (2022-08-09):
+# the Internal Affairs Ministry (Ministerio del Interior) informed DST
+# for America/Santiago will start on midnight of September 11th;
+# and will end on April 1st, 2023. Magallanes region (America/Punta_Arenas)
+# will keep UTC -3 "indefinitely"...  This is because on September 4th
+# we will have a voting whether to approve a new Constitution.
+#
+# From Eduardo Romero Urra (2022-08-17):
+# https://www.diariooficial.interior.gob.cl/publicaciones/2022/08/13/43327/01/2172567.pdf
+#
+# From Paul Eggert (2022-08-17):
+# Although the presidential decree stops at fall 2026, assume that
+# similar DST rules will continue thereafter.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Chile	1927	1931	-	Sep	 1	0:00	1:00	-
@@ -1317,34 +1374,37 @@ Rule	Chile	2012	2014	-	Sep	Sun>=2	4:00u	1:00	-
 Rule	Chile	2016	2018	-	May	Sun>=9	3:00u	0	-
 Rule	Chile	2016	2018	-	Aug	Sun>=9	4:00u	1:00	-
 Rule	Chile	2019	max	-	Apr	Sun>=2	3:00u	0	-
-Rule	Chile	2019	max	-	Sep	Sun>=2	4:00u	1:00	-
+Rule	Chile	2019	2021	-	Sep	Sun>=2	4:00u	1:00	-
+Rule	Chile	2022	only	-	Sep	Sun>=9	4:00u	1:00	-
+Rule	Chile	2023	max	-	Sep	Sun>=2	4:00u	1:00	-
 # IATA SSIM anomalies: (1992-02) says 1992-03-14;
 # (1996-09) says 1998-03-08.  Ignore these.
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Santiago	-4:42:46 -	LMT	1890
-			-4:42:46 -	SMT	1910 Jan 10 # Santiago Mean Time
+Zone America/Santiago	-4:42:45 -	LMT	1890
+			-4:42:45 -	SMT	1910 Jan 10 # Santiago Mean Time
 			-5:00	-	-05	1916 Jul  1
-			-4:42:46 -	SMT	1918 Sep 10
+			-4:42:45 -	SMT	1918 Sep 10
 			-4:00	-	-04	1919 Jul  1
-			-4:42:46 -	SMT	1927 Sep  1
+			-4:42:45 -	SMT	1927 Sep  1
 			-5:00	Chile	-05/-04	1932 Sep  1
 			-4:00	-	-04	1942 Jun  1
 			-5:00	-	-05	1942 Aug  1
-			-4:00	-	-04	1946 Jul 15
-			-4:00	1:00	-03	1946 Sep  1 # central Chile
-			-4:00	-	-04	1947 Apr  1
+			-4:00	-	-04	1946 Jul 14 24:00
+			-4:00	1:00	-03	1946 Aug 28 24:00 # central CL
+			-5:00	1:00	-04	1947 Mar 31 24:00
 			-5:00	-	-05	1947 May 21 23:00
 			-4:00	Chile	-04/-03
 Zone America/Punta_Arenas -4:43:40 -	LMT	1890
-			-4:42:46 -	SMT	1910 Jan 10
+			-4:42:45 -	SMT	1910 Jan 10
 			-5:00	-	-05	1916 Jul  1
-			-4:42:46 -	SMT	1918 Sep 10
+			-4:42:45 -	SMT	1918 Sep 10
 			-4:00	-	-04	1919 Jul  1
-			-4:42:46 -	SMT	1927 Sep  1
+			-4:42:45 -	SMT	1927 Sep  1
 			-5:00	Chile	-05/-04	1932 Sep  1
 			-4:00	-	-04	1942 Jun  1
 			-5:00	-	-05	1942 Aug  1
-			-4:00	-	-04	1947 Apr  1
+			-4:00	-	-04	1946 Aug 28 24:00
+			-5:00	1:00	-04	1947 Mar 31 24:00
 			-5:00	-	-05	1947 May 21 23:00
 			-4:00	Chile	-04/-03	2016 Dec  4
 			-3:00	-	-03
@@ -1378,49 +1438,20 @@ Zone Antarctica/Palmer	0	-	-00	1965
 
 # Colombia
 
-# Milne gives 4:56:16.4 for Bogotá time in 1899; round to nearest.  He writes,
+# Milne gives 4:56:16.4 for Bogotá time in 1899.  He writes,
 # "A variation of fifteen minutes in the public clocks of Bogota is not rare."
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	CO	1992	only	-	May	 3	0:00	1:00	-
 Rule	CO	1993	only	-	Apr	 4	0:00	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
+		#STDOFF	-4:56:16.4
 Zone	America/Bogota	-4:56:16 -	LMT	1884 Mar 13
 			-4:56:16 -	BMT	1914 Nov 23 # Bogotá Mean Time
 			-5:00	CO	-05/-04
 # Malpelo, Providencia, San Andres
 # no information; probably like America/Bogota
 
-# Curaçao
-
-# Milne gives 4:35:46.9 for Curaçao mean time; round to nearest.
-#
-# From Paul Eggert (2006-03-22):
-# Shanks & Pottenger say that The Bottom and Philipsburg have been at
-# -4:00 since standard time was introduced on 1912-03-02; and that
-# Kralendijk and Rincon used Kralendijk Mean Time (-4:33:08) from
-# 1912-02-02 to 1965-01-01.  The former is dubious, since S&P also say
-# Saba Island has been like Curaçao.
-# This all predates our 1970 cutoff, though.
-#
-# By July 2007 Curaçao and St Maarten are planned to become
-# associated states within the Netherlands, much like Aruba;
-# Bonaire, Saba and St Eustatius would become directly part of the
-# Netherlands as Kingdom Islands.  This won't affect their time zones
-# though, as far as we know.
-#
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Curacao	-4:35:47 -	LMT	1912 Feb 12 # Willemstad
-			-4:30	-	-0430	1965
-			-4:00	-	AST
-
-# From Arthur David Olson (2011-06-15):
-# use links for places with new iso3166 codes.
-# The name "Lower Prince's Quarter" is both longer than fourteen characters
-# and contains an apostrophe; use "Lower_Princes" below.
-
-Link	America/Curacao	America/Lower_Princes	# Sint Maarten
-Link	America/Curacao	America/Kralendijk	# Caribbean Netherlands
 
 # Ecuador
 #
@@ -1563,11 +1594,40 @@ Zone America/Cayenne	-3:29:20 -	LMT	1911 Jul
 			-3:00	-	-03
 
 # Guyana
+
+# From P Chan (2020-11-27):
+# https://books.google.com/books?id=5-5CAQAAMAAJ&pg=SA1-PA547
+# The Official Gazette of British Guiana. (New Series.) Vol. XL. July to
+# December, 1915, p 1547, lists as several notes:
+# "Local Mean Time 3 hours 52 mins. 39 secs. slow of Greenwich Mean Time
+# (Georgetown.) From 1st August, 1911, British Guiana Standard Mean Time 4
+# hours slow of Greenwich Mean Time, by notice in Official Gazette on 1st July,
+# 1911.  From 1st March, 1915, British Guiana Standard Mean Time 3 hours 45
+# mins. 0 secs. slow of Greenwich Mean Time, by notice in Official Gazette on
+# 23rd January, 1915."
+#
+# https://parliament.gov.gy/documents/acts/10923-act_no._27_of_1975_-_interpretation_and_general_clauses_(amendment)_act_1975.pdf
+# Interpretation and general clauses (Amendment) Act 1975 (Act No. 27 of 1975)
+# [dated 1975-07-31]
+# "This Act...shall come into operation on 1st August, 1975."
+# "...where any expression of time occurs...the time referred to shall signify
+# the standard time of Guyana which shall be three hours behind Greenwich Mean
+# Time."
+#
+# Circular No. 10/1992 dated 1992-03-20
+# https://dps.gov.gy/wp-content/uploads/2018/12/1992-03-20-Circular-010.pdf
+# "...cabinet has decided that with effect from Sunday 29th March, 1992, Guyana
+# Standard Time would be re-established at 01:00 hours by adjusting the hands
+# of the clock back to 24:00 hours."
+# Legislated in the Interpretation and general clauses (Amendment) Act 1992
+# (Act No. 6 of 1992) [passed 1992-03-27, published 1992-04-18]
+# https://parliament.gov.gy/documents/acts/5885-6_of_1992_interpretation_and_general_clauses_(amendment)_act_1992.pdf
+
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	America/Guyana	-3:52:40 -	LMT	1915 Mar    # Georgetown
-			-3:45	-	-0345	1975 Jul 31
-			-3:00	-	-03	1991
-# IATA SSIM (1996-06) says -4:00.  Assume a 1991 switch.
+Zone	America/Guyana	-3:52:39 -	LMT	1911 Aug  1 # Georgetown
+			-4:00	-	-04	1915 Mar  1
+			-3:45	-	-0345	1975 Aug  1
+			-3:00	-	-03	1992 Mar 29  1:00
 			-4:00	-	-04
 
 # Paraguay
@@ -1707,26 +1767,6 @@ Zone America/Paramaribo	-3:40:40 -	LMT	1911
 			-3:30	-	-0330	1984 Oct
 			-3:00	-	-03
 
-# Trinidad and Tobago
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone America/Port_of_Spain -4:06:04 -	LMT	1912 Mar 2
-			-4:00	-	AST
-
-# These all agree with Trinidad and Tobago since 1970.
-Link America/Port_of_Spain America/Anguilla
-Link America/Port_of_Spain America/Antigua
-Link America/Port_of_Spain America/Dominica
-Link America/Port_of_Spain America/Grenada
-Link America/Port_of_Spain America/Guadeloupe
-Link America/Port_of_Spain America/Marigot	# St Martin (French part)
-Link America/Port_of_Spain America/Montserrat
-Link America/Port_of_Spain America/St_Barthelemy # St Barthélemy
-Link America/Port_of_Spain America/St_Kitts	# St Kitts & Nevis
-Link America/Port_of_Spain America/St_Lucia
-Link America/Port_of_Spain America/St_Thomas	# Virgin Islands (US)
-Link America/Port_of_Spain America/St_Vincent
-Link America/Port_of_Spain America/Tortola	# Virgin Islands (UK)
-
 # Uruguay
 # From Paul Eggert (1993-11-18):
 # Uruguay wins the prize for the strangest peacetime manipulation of the rules.

make/data/tzdata/zone.tab

@@ -26,7 +26,7 @@
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
-# From Paul Eggert (2018-06-27):
+# From Paul Eggert (2021-09-20):
 # This file is intended as a backward-compatibility aid for older programs.
 # New programs should use zone1970.tab.  This file is like zone1970.tab (see
 # zone1970.tab's comments), but with the following additional restrictions:
@@ -39,6 +39,9 @@
 # clocks have agreed since 1970; this is a narrower definition than
 # that of zone1970.tab.
 #
+# Unlike zone1970.tab, a row's third column can be a Link from
+# 'backward' instead of a Zone.
+#
 # This table is intended as an aid for users, to help them select timezones
 # appropriate for their practical needs.  It is not intended to take or
 # endorse any position on legal or territorial claims.
@@ -134,13 +137,10 @@ CA	+4606-06447	America/Moncton	Atlantic - New Brunswick
 CA	+5320-06025	America/Goose_Bay	Atlantic - Labrador (most areas)
 CA	+5125-05707	America/Blanc-Sablon	AST - QC (Lower North Shore)
 CA	+4339-07923	America/Toronto	Eastern - ON, QC (most areas)
-CA	+4901-08816	America/Nipigon	Eastern - ON, QC (no DST 1967-73)
-CA	+4823-08915	America/Thunder_Bay	Eastern - ON (Thunder Bay)
 CA	+6344-06828	America/Iqaluit	Eastern - NU (most east areas)
 CA	+6608-06544	America/Pangnirtung	Eastern - NU (Pangnirtung)
 CA	+484531-0913718	America/Atikokan	EST - ON (Atikokan); NU (Coral H)
 CA	+4953-09709	America/Winnipeg	Central - ON (west); Manitoba
-CA	+4843-09434	America/Rainy_River	Central - ON (Rainy R, Ft Frances)
 CA	+744144-0944945	America/Resolute	Central - NU (Resolute)
 CA	+624900-0920459	America/Rankin_Inlet	Central - NU (central)
 CA	+5024-10439	America/Regina	CST - SK (most areas)
@@ -150,7 +150,7 @@ CA	+690650-1050310	America/Cambridge_Bay	Mountain - NU (west)
 CA	+6227-11421	America/Yellowknife	Mountain - NT (central)
 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	+5546-12014	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)
@@ -251,7 +251,7 @@ KE	-0117+03649	Africa/Nairobi
 KG	+4254+07436	Asia/Bishkek
 KH	+1133+10455	Asia/Phnom_Penh
 KI	+0125+17300	Pacific/Tarawa	Gilbert Islands
-KI	-0308-17105	Pacific/Enderbury	Phoenix Islands
+KI	-0247-17143	Pacific/Kanton	Phoenix Islands
 KI	+0152-15720	Pacific/Kiritimati	Line Islands
 KM	-1141+04316	Indian/Comoro
 KN	+1718-06243	America/St_Kitts
@@ -414,15 +414,13 @@ TK	-0922-17114	Pacific/Fakaofo
 TL	-0833+12535	Asia/Dili
 TM	+3757+05823	Asia/Ashgabat
 TN	+3648+01011	Africa/Tunis
-TO	-2110-17510	Pacific/Tongatapu
+TO	-210800-1751200	Pacific/Tongatapu
 TR	+4101+02858	Europe/Istanbul
 TT	+1039-06131	America/Port_of_Spain
 TV	-0831+17913	Pacific/Funafuti
 TW	+2503+12130	Asia/Taipei
 TZ	-0648+03917	Africa/Dar_es_Salaam
-UA	+5026+03031	Europe/Kiev	Ukraine (most areas)
-UA	+4837+02218	Europe/Uzhgorod	Transcarpathia
-UA	+4750+03510	Europe/Zaporozhye	Zaporozhye and east Lugansk
+UA	+5026+03031	Europe/Kyiv	Ukraine (most areas)
 UG	+0019+03225	Africa/Kampala
 UM	+2813-17722	Pacific/Midway	Midway Islands
 UM	+1917+16637	Pacific/Wake	Wake Island

make/devkit/createJMHBundle.sh

@@ -1,6 +1,6 @@
 #!/bin/bash -e
 #
-# Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2018, 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
@@ -26,7 +26,7 @@
 # Create a bundle in the build directory, containing what's needed to
 # build and run JMH microbenchmarks from the OpenJDK build.
 
-JMH_VERSION=1.28
+JMH_VERSION=1.35
 COMMONS_MATH3_VERSION=3.2
 JOPT_SIMPLE_VERSION=4.6
 

make/devkit/createWindowsDevkit.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (c) 2019, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2015, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -28,14 +28,19 @@
 # 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"
+usage_and_exit() {
+    echo "Usage: createWindowsDevkit.sh <2019 | 2022>"
+    exit 1
+}
+
+if [ ! $# = 1 ]; then
+    usage_and_exit
+fi
+
+VS_VERSION="$1"
+
 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"
@@ -66,13 +71,33 @@ fi
 
 # Work around the insanely named ProgramFiles(x86) env variable
 PROGRAMFILES_X86="$($WINDOWS_PATH_TO_UNIX_PATH "$(cmd.exe /c set | sed -n 's/^ProgramFiles(x86)=//p' | tr -d '\r')")"
+PROGRAMFILES="$($WINDOWS_PATH_TO_UNIX_PATH "$PROGRAMFILES")"
+
+case $VS_VERSION in
+    2019)
+        MSVC_PROGRAMFILES_DIR="${PROGRAMFILES_X86}"
+        MSVC_CRT_DIR="Microsoft.VC142.CRT"
+        VS_VERSION_NUM_NODOT="160"
+        ;;
+
+    2022)
+        MSVC_PROGRAMFILES_DIR="${PROGRAMFILES}"
+        MSVC_CRT_DIR="Microsoft.VC143.CRT"
+        VS_VERSION_NUM_NODOT="170"
+        ;;
+    *)
+        echo "Unexpected VS version: $VS_VERSION"
+        usage_and_exit
+        ;;
+esac
+
 
 # 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="${MSVC_PROGRAMFILES_DIR}/Microsoft Visual Studio/$VS_VERSION"
     VS_INSTALL_DIR="$(ls -d "${VS_INSTALL_DIR}/"{Community,Professional,Enterprise} 2>/dev/null | head -n1)"
 fi
 echo "VS_INSTALL_DIR: $VS_INSTALL_DIR"
@@ -101,9 +126,9 @@ DEVKIT_BUNDLE="${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
+MSVCR_DLL=${MSVC_CRT_DIR}/vcruntime${VS_DLL_VERSION}.dll
+VCRUNTIME_1_DLL=${MSVC_CRT_DIR}/vcruntime${VS_DLL_VERSION}_1.dll
+MSVCP_DLL=${MSVC_CRT_DIR}/msvcp${VS_DLL_VERSION}.dll
 
 ################################################################################
 # Copy Visual Studio files

make/hotspot/gensrc/GensrcAdlc.gmk

@@ -58,6 +58,9 @@ ifeq ($(call check-jvm-feature, compiler2), true)
 
   ADLC_CFLAGS += -I$(TOPDIR)/src/hotspot/share
 
+  # Add file macro mappings
+  ADLC_CFLAGS += $(FILE_MACRO_CFLAGS)
+
   $(eval $(call SetupNativeCompilation, BUILD_ADLC, \
       NAME := adlc, \
       TYPE := EXECUTABLE, \
@@ -149,12 +152,14 @@ ifeq ($(call check-jvm-feature, compiler2), true)
   ifeq ($(call check-jvm-feature, shenandoahgc), true)
     AD_SRC_FILES += $(call uniq, $(wildcard $(foreach d, $(AD_SRC_ROOTS), \
         $d/cpu/$(HOTSPOT_TARGET_CPU_ARCH)/gc/shenandoah/shenandoah_$(HOTSPOT_TARGET_CPU).ad \
+        $d/cpu/$(HOTSPOT_TARGET_CPU_ARCH)/gc/shenandoah/shenandoah_$(HOTSPOT_TARGET_CPU_ARCH).ad \
       )))
   endif
 
   ifeq ($(call check-jvm-feature, zgc), true)
     AD_SRC_FILES += $(call uniq, $(wildcard $(foreach d, $(AD_SRC_ROOTS), \
         $d/cpu/$(HOTSPOT_TARGET_CPU_ARCH)/gc/z/z_$(HOTSPOT_TARGET_CPU).ad \
+        $d/cpu/$(HOTSPOT_TARGET_CPU_ARCH)/gc/z/z_$(HOTSPOT_TARGET_CPU_ARCH).ad \
       )))
   endif
 

make/hotspot/lib/CompileGtest.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -101,7 +101,7 @@ $(eval $(call SetupJdkLibrary, BUILD_GTEST_LIBJVM, \
     CFLAGS_windows := -EHsc, \
     CFLAGS_macosx := -DGTEST_OS_MAC=1, \
     DISABLED_WARNINGS_gcc := $(DISABLED_WARNINGS_gcc) \
-        undef, \
+        undef stringop-overflow, \
     DISABLED_WARNINGS_clang := $(DISABLED_WARNINGS_clang) \
         undef switch format-nonliteral tautological-undefined-compare \
         self-assign-overloaded, \

make/jdk/src/classes/build/tools/cldrconverter/CLDRConverter.java

@@ -114,6 +114,7 @@ public class CLDRConverter {
         ResourceBundle.Control.getControl(ResourceBundle.Control.FORMAT_DEFAULT);
 
     private static Set<String> AVAILABLE_TZIDS;
+    static int copyrightYear;
     private static String zoneNameTempFile;
     private static String tzDataDir;
     private static final Map<String, String> canonicalTZMap = new HashMap<>();
@@ -217,6 +218,10 @@ public class CLDRConverter {
                         verbose = true;
                         break;
 
+                    case "-year":
+                        copyrightYear = Integer.parseInt(args[++i]);
+                        break;
+
                     case "-zntempfile":
                         zoneNameTempFile = args[++i];
                         break;
@@ -235,7 +240,7 @@ public class CLDRConverter {
                     }
                 }
             } catch (RuntimeException e) {
-                severe("unknown or imcomplete arg(s): " + currentArg);
+                severe("unknown or incomplete arg(s): " + currentArg);
                 usage();
                 System.exit(1);
             }
@@ -260,6 +265,10 @@ public class CLDRConverter {
             setupBaseLocales("en-US");
         }
 
+        if (copyrightYear == 0) {
+            copyrightYear = ZonedDateTime.now(ZoneId.of("America/Los_Angeles")).getYear();
+        }
+
         bundleGenerator = new ResourceBundleGenerator();
 
         // Parse data independent of locales
@@ -292,6 +301,7 @@ public class CLDRConverter {
                 + "\t-basemodule    generates bundles that go into java.base module%n"
                 + "\t-baselocales loc(,loc)*      locales that go into the base module%n"
                 + "\t-o dir         output directory (default: ./build/gensrc)%n"
+                + "\t-year year     copyright year in output%n"
                 + "\t-zntempfile    template file for java.time.format.ZoneName.java%n"
                 + "\t-tzdatadir     tzdata directory for java.time.format.ZoneName.java%n"
                 + "\t-utf8          use UTF-8 rather than \\uxxxx (for debug)%n");

make/jdk/src/classes/build/tools/cldrconverter/CopyrightHeaders.java

@@ -26,6 +26,7 @@
 package build.tools.cldrconverter;
 
 import java.util.Calendar;
+import java.util.Date;
 import java.util.GregorianCalendar;
 import java.util.Locale;
 import java.util.TimeZone;
@@ -131,8 +132,7 @@ class CopyrightHeaders {
         " * questions.\n" +
         " */\n";
 
-    static String getOracleCopyright() {
-        int year = getYear();
+    static String getOracleCopyright(int year) {
         return String.format(year > 2012 ? ORACLE_AFTER2012 : ORACLE2012, year);
     }
 
@@ -140,16 +140,10 @@ class CopyrightHeaders {
         return UNICODE;
     }
 
-    static String getOpenJDKCopyright() {
-        int year = getYear();
+    static String getOpenJDKCopyright(int year) {
         return String.format(year > 2012 ? OPENJDK_AFTER2012 : OPENJDK2012, year);
     }
 
-    private static int getYear() {
-        return new GregorianCalendar(TimeZone.getTimeZone("America/Los_Angeles"),
-                                         Locale.US).get(Calendar.YEAR);
-    }
-
     // no instantiation
     private CopyrightHeaders() {
     }

make/jdk/src/classes/build/tools/cldrconverter/ResourceBundleGenerator.java

@@ -198,7 +198,7 @@ class ResourceBundleGenerator implements BundleGenerator {
 
         try (PrintWriter out = new PrintWriter(file, encoding)) {
             // Output copyright headers
-            out.println(CopyrightHeaders.getOpenJDKCopyright());
+            out.println(CopyrightHeaders.getOpenJDKCopyright(CLDRConverter.copyrightYear));
             out.println(CopyrightHeaders.getUnicodeCopyright());
 
             if (useJava) {
@@ -266,7 +266,7 @@ class ResourceBundleGenerator implements BundleGenerator {
         CLDRConverter.info("Generating file " + file);
 
         try (PrintWriter out = new PrintWriter(file, "us-ascii")) {
-            out.printf(CopyrightHeaders.getOpenJDKCopyright());
+            out.printf(CopyrightHeaders.getOpenJDKCopyright(CLDRConverter.copyrightYear));
 
             out.printf((CLDRConverter.isBaseModule ? "package sun.util.cldr;\n\n" :
                                   "package sun.util.resources.cldr.provider;\n\n")

make/jdk/src/classes/build/tools/depend/Depend.java

@@ -102,7 +102,7 @@ public class Depend implements Plugin {
             private final MessageDigest apiHash;
             {
                 try {
-                    apiHash = MessageDigest.getInstance("MD5");
+                    apiHash = MessageDigest.getInstance("SHA-256");
                 } catch (NoSuchAlgorithmException ex) {
                     throw new IllegalStateException(ex);
                 }

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

@@ -30,13 +30,15 @@ import java.io.IOException;
 import java.nio.charset.Charset;
 import java.nio.file.Files;
 import java.nio.file.Paths;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.TimeZone;
 import java.util.TreeMap;
 import java.util.stream.Collectors;
 
@@ -52,17 +54,19 @@ import java.util.stream.Collectors;
 public class EquivMapsGenerator {
 
     public static void main(String[] args) throws Exception {
-        if (args.length != 2) {
+        if (args.length != 3) {
             System.err.println("Usage: java EquivMapsGenerator"
-                    + " language-subtag-registry.txt LocaleEquivalentMaps.java");
+                    + " language-subtag-registry.txt LocaleEquivalentMaps.java copyrightYear");
             System.exit(1);
         }
+        copyrightYear = Integer.parseInt(args[2]);
         readLSRfile(args[0]);
         generateEquivalentMap();
         generateSourceCode(args[1]);
     }
 
     private static String LSRrevisionDate;
+    private static int copyrightYear;
     private static Map<String, StringBuilder> initialLanguageMap =
         new TreeMap<>();
     private static Map<String, StringBuilder> initialRegionVariantMap =
@@ -246,9 +250,7 @@ public class EquivMapsGenerator {
         + "}";
 
     private static String getOpenJDKCopyright() {
-        int year = ZonedDateTime.now(ZoneId
-                .of("America/Los_Angeles")).getYear();
-        return String.format(Locale.US, COPYRIGHT, year);
+        return String.format(Locale.US, COPYRIGHT, copyrightYear);
     }
 
     /**

make/jdk/src/classes/build/tools/makezipreproducible/MakeZipReproducible.java

@@ -0,0 +1,241 @@
+/*
+ * Copyright (c) 2021, 2022, 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.
+ *
+ * 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.
+ */
+
+package build.tools.makezipreproducible;
+
+import java.io.*;
+import java.nio.file.*;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.nio.channels.Channels;
+import java.nio.channels.FileChannel;
+import java.util.*;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipException;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+import java.time.Instant;
+import java.time.ZoneOffset;
+import java.time.LocalDateTime;
+
+/**
+ * Generate a zip file in a "reproducible" manner from the input zip file.
+ * Standard zip tools rely on OS file list querying whose ordering can vary
+ * by platform architecture, this class ensures the zip entries are ordered
+ * and also supports SOURCE_DATE_EPOCH timestamps which will set the ZipEntry
+ * local time in UTC.
+ */
+public class MakeZipReproducible {
+    String input_file = null;
+    String fname = null;
+    String zname = "";
+    LocalDateTime timestamp = null;
+    boolean verbose = false;
+
+    // Keep a sorted Set of ZipEntrys to be processed, so that the zip is reproducible
+    SortedMap<String, ZipEntry> entries  = new TreeMap<String, ZipEntry>();
+
+    private boolean ok;
+
+    public MakeZipReproducible() {
+    }
+
+    public synchronized boolean run(String args[]) {
+        ok = true;
+        if (!parseArgs(args)) {
+            return false;
+        }
+        try {
+            zname = fname.replace(File.separatorChar, '/');
+            if (zname.startsWith("./")) {
+                zname = zname.substring(2);
+            }
+
+            if (verbose) System.out.println("Input zip file: " + input_file);
+
+            File inFile  = new File(input_file);
+            if (!inFile.exists()) {
+                error("Input zip file does not exist");
+                ok = false;
+            } else {
+                File zipFile = new File(fname);
+                // Check archive to create does not exist
+                if (!zipFile.exists()) {
+                    // Process input ZipEntries
+                    ok = processInputEntries(inFile);
+                    if (ok) {
+                        try (FileOutputStream out = new FileOutputStream(fname)) {
+                            ok = create(inFile, new BufferedOutputStream(out, 4096));
+                        }
+                    } else {
+                    }
+                } else {
+                    error("Target zip file "+fname+" already exists.");
+                    ok = false;
+                }
+            }
+        } catch (IOException e) {
+            fatalError(e);
+            ok = false;
+        } catch (Error ee) {
+            ee.printStackTrace();
+            ok = false;
+        } catch (Throwable t) {
+            t.printStackTrace();
+            ok = false;
+        }
+        return ok;
+    }
+
+    boolean parseArgs(String args[]) {
+        try {
+            boolean parsingIncludes = false;
+            boolean parsingExcludes = false;
+            int count = 0;
+            while(count < args.length) {
+                if (args[count].startsWith("-")) {
+                    String flag = args[count].substring(1);
+                    switch (flag.charAt(0)) {
+                    case 'f':
+                        fname = args[++count];
+                        break;
+                    case 't':
+                        // SOURCE_DATE_EPOCH timestamp specified
+                        long epochSeconds = Long.parseLong(args[++count]);
+                        Instant instant = Instant.ofEpochSecond(epochSeconds);
+                        timestamp = LocalDateTime.ofInstant(instant, ZoneOffset.UTC);
+                        break;
+                    case 'v':
+                        verbose = true;
+                        break;
+                    default:
+                        error(String.format("Illegal option -%s", String.valueOf(flag.charAt(0))));
+                        usageError();
+                        return false;
+                    }
+                } else {
+                    // input zip file
+                    if (input_file != null) {
+                        error("Input zip file already specified");
+                        usageError();
+                        return false;
+                    }
+                    input_file = args[count];
+                }
+                count++;
+            }
+        } catch (ArrayIndexOutOfBoundsException e) {
+            usageError();
+            return false;
+        } catch (NumberFormatException e) {
+            usageError();
+            return false;
+        }
+        if (fname == null) {
+            error("-f <outputArchiveName> must be specified");
+            usageError();
+            return false;
+        }
+        // If no files specified then default to current directory
+        if (input_file == null) {
+            error("No input zip file specified");
+            usageError();
+            return false;
+        }
+
+        return true;
+    }
+
+    // Process input zip file and add to sorted entries set
+    boolean processInputEntries(File inFile) throws IOException {
+        ZipFile zipFile = new ZipFile(inFile);
+        zipFile.stream().forEach(entry -> entries.put(entry.getName(), entry));
+
+        return true;
+    }
+
+    // Create new zip from entries
+    boolean create(File inFile, OutputStream out) throws IOException
+    {
+        try (ZipFile zipFile = new ZipFile(inFile);
+             ZipOutputStream zos = new ZipOutputStream(out)) {
+            for (Map.Entry<String, ZipEntry> entry : entries.entrySet()) {
+                ZipEntry zipEntry = entry.getValue();
+                if (zipEntry.getSize() > 0) {
+                    try (InputStream eis = zipFile.getInputStream(zipEntry)) {
+                        addEntry(zos, zipEntry, eis);
+                    }
+                } else {
+                    addEntry(zos, zipEntry, null);
+                }
+            }
+        }
+        return true;
+    }
+
+    // Add Entry and data to Zip
+    void addEntry(ZipOutputStream zos, ZipEntry entry, InputStream entryInputStream) throws IOException {
+        if (verbose) {
+            System.out.println("Adding: "+entry.getName());
+        }
+
+        // Set to specified timestamp if set otherwise leave as original lastModified time
+        if (timestamp != null) {
+            entry.setTimeLocal(timestamp);
+        }
+
+        // Ensure "extra" field is not set from original ZipEntry info that may be not deterministic
+        // eg.may contain specific UID/GID
+        entry.setExtra(null);
+
+        zos.putNextEntry(entry);
+        if (entry.getSize() > 0 && entryInputStream != null) {
+            entryInputStream.transferTo(zos);
+        }
+        zos.closeEntry();
+    }
+
+    void usageError() {
+        error(
+        "Usage: MakeZipReproducible [-v] [-t <SOURCE_DATE_EPOCH>] -f <output_zip_file> <input_zip_file>\n" +
+        "Options:\n" +
+        "   -v  verbose output\n" +
+        "   -f  specify archive file name to create\n" +
+        "   -t  specific SOURCE_DATE_EPOCH value to use for timestamps\n" +
+        "   input_zip_file re-written as a reproducible zip output_zip_file.\n");
+    }
+
+    void fatalError(Exception e) {
+        e.printStackTrace();
+    }
+
+    protected void error(String s) {
+        System.err.println(s);
+    }
+
+    public static void main(String args[]) {
+        MakeZipReproducible z = new MakeZipReproducible();
+        System.exit(z.run(args) ? 0 : 1);
+    }
+}
+

make/modules/java.base/Gendata.gmk

@@ -60,7 +60,11 @@ TARGETS += $(GENDATA_CURDATA)
 
 ################################################################################
 
-GENDATA_CACERTS_SRC := $(TOPDIR)/make/data/cacerts/
+ifneq ($(CACERTS_SRC), )
+  GENDATA_CACERTS_SRC := $(CACERTS_SRC)
+else
+  GENDATA_CACERTS_SRC := $(TOPDIR)/make/data/cacerts/
+endif
 GENDATA_CACERTS := $(SUPPORT_OUTPUTDIR)/modules_libs/java.base/security/cacerts
 
 $(GENDATA_CACERTS): $(BUILD_TOOLS_JDK) $(wildcard $(GENDATA_CACERTS_SRC)/*)

make/modules/java.base/Gensrc.gmk

@@ -62,6 +62,7 @@ $(CLDR_GEN_DONE): $(wildcard $(CLDR_DATA_DIR)/dtd/*.dtd) \
 	    -baselocales "en-US" \
 	    -o $(GENSRC_DIR) \
 	    -basemodule \
+	    -year $(COPYRIGHT_YEAR) \
 	    -zntempfile $(ZONENAME_TEMPLATE) \
 	    -tzdatadir $(TZ_DATA_DIR))
 	$(TOUCH) $@
@@ -99,7 +100,7 @@ GENSRC_LSREQUIVMAPS := $(SUPPORT_OUTPUTDIR)/gensrc/java.base/sun/util/locale/Loc
 
 $(GENSRC_LSREQUIVMAPS): $(TOPDIR)/make/data/lsrdata/language-subtag-registry.txt $(BUILD_TOOLS_JDK)
 	$(call MakeDir, $(@D))
-	$(TOOL_GENERATELSREQUIVMAPS) $< $@
+	$(TOOL_GENERATELSREQUIVMAPS) $< $@ $(COPYRIGHT_YEAR)
 
 TARGETS += $(GENSRC_LSREQUIVMAPS)
 

make/modules/java.base/lib/CoreLibraries.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -135,6 +135,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBZIP, \
         $(LIBZ_CFLAGS), \
     CFLAGS_unix := $(BUILD_LIBZIP_MMAP) -UDEBUG, \
     DISABLED_WARNINGS_gcc := unused-function implicit-fallthrough, \
+    DISABLED_WARNINGS_clang := format-nonliteral, \
     LDFLAGS := $(LDFLAGS_JDKLIB) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \
     LIBS_unix := -ljvm -ljava $(LIBZ_LIBS), \

make/modules/java.desktop/lib/Awt2dLibraries.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -26,6 +26,7 @@
 WIN_AWT_LIB := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/libawt/awt.lib
 
 LIBAWT_DEFAULT_HEADER_DIRS := \
+    common/awt/utility \
     libawt/awt/image \
     libawt/awt/image/cvutils \
     libawt/java2d \
@@ -435,7 +436,7 @@ endif
 
 ifeq ($(USE_EXTERNAL_HARFBUZZ), true)
    LIBFONTMANAGER_EXTRA_SRC =
-   BUILD_LIBFONTMANAGER_FONTLIB += $(LIBHARFBUZZ_LIBS)
+   BUILD_LIBFONTMANAGER_FONTLIB += $(HARFBUZZ_LIBS)
 else
    LIBFONTMANAGER_EXTRA_SRC = libharfbuzz
 
@@ -470,10 +471,10 @@ else
 
 endif
 
-
 LIBFONTMANAGER_EXTRA_HEADER_DIRS := \
     libharfbuzz \
     common/awt \
+    common/awt/utility \
     common/font \
     libawt/java2d \
     libawt/java2d/pipe \
@@ -485,6 +486,14 @@ BUILD_LIBFONTMANAGER_FONTLIB +=  $(LIBFREETYPE_LIBS)
 
 LIBFONTMANAGER_OPTIMIZATION := HIGHEST
 
+ifneq ($(filter $(TOOLCHAIN_TYPE), gcc clang), )
+  # gcc (and to an extent clang) is particularly bad at optimizing these files,
+  # causing a massive spike in compile time. We don't care about these
+  # particular files anyway, so lower optimization level.
+  BUILD_LIBFONTMANAGER_hb-subset.cc_OPTIMIZATION := SIZE
+  BUILD_LIBFONTMANAGER_hb-subset-plan.cc_OPTIMIZATION := SIZE
+endif
+
 ifeq ($(call isTargetOs, windows), true)
   LIBFONTMANAGER_EXCLUDE_FILES += X11FontScaler.c \
       X11TextRenderer.c
@@ -554,6 +563,7 @@ ifeq ($(call isTargetOs, windows), true)
   LIBJAWT_EXTRA_HEADER_DIRS := \
       include \
       common/awt/debug \
+      common/awt/utility \
       libawt/awt/image/cvutils \
       libawt/java2d \
       libawt/java2d/windows \
@@ -649,6 +659,8 @@ ifeq ($(ENABLE_HEADLESS_ONLY), false)
       common/awt/systemscale \
       #
 
+  LIBSPLASHSCREEN_HEADER_DIRS += common/awt/utility
+
   ifeq ($(USE_EXTERNAL_LIBGIF), false)
     LIBSPLASHSCREEN_HEADER_DIRS += libsplashscreen/giflib
   else
@@ -673,6 +685,7 @@ ifeq ($(ENABLE_HEADLESS_ONLY), false)
 
   ifeq ($(USE_EXTERNAL_LIBZ), false)
     LIBSPLASHSCREEN_EXTRA_SRC += java.base:libzip/zlib
+    LIBZ_DISABLED_WARNINGS_CLANG := format-nonliteral
   endif
 
   ifeq ($(call isTargetOs, macosx), true)
@@ -742,7 +755,7 @@ ifeq ($(ENABLE_HEADLESS_ONLY), false)
           maybe-uninitialized shift-negative-value implicit-fallthrough \
           unused-function, \
       DISABLED_WARNINGS_clang := incompatible-pointer-types sign-compare \
-          deprecated-declarations, \
+          deprecated-declarations null-pointer-subtraction $(LIBZ_DISABLED_WARNINGS_CLANG), \
       DISABLED_WARNINGS_microsoft := 4018 4244 4267, \
       LDFLAGS := $(LDFLAGS_JDKLIB) \
           $(call SET_SHARED_LIBRARY_ORIGIN), \
@@ -834,6 +847,19 @@ endif
 
 ################################################################################
 
+# MACOSX_METAL_VERSION_MIN specifies the lowest version of Macosx
+# that should be used to compile Metal shaders. We support Metal
+# pipeline only on Macosx >=10.14. For Macosx versions <10.14 even if
+# we enable Metal pipeline using -Dsun.java2d.metal=true, at
+# runtime we force it to use OpenGL pipeline. And MACOSX_VERSION_MIN
+# for aarch64 has always been >10.14 so we use continue to use
+# MACOSX_VERSION_MIN for aarch64.
+ifeq ($(OPENJDK_TARGET_CPU_ARCH), xaarch64)
+    MACOSX_METAL_VERSION_MIN=$(MACOSX_VERSION_MIN)
+else
+    MACOSX_METAL_VERSION_MIN=10.14.0
+endif
+
 ifeq ($(call isTargetOs, macosx), true)
   SHADERS_SRC := $(TOPDIR)/src/java.desktop/macosx/native/libawt_lwawt/java2d/metal/shaders.metal
   SHADERS_SUPPORT_DIR := $(SUPPORT_OUTPUTDIR)/native/java.desktop/libosxui
@@ -845,7 +871,9 @@ ifeq ($(call isTargetOs, macosx), true)
       DEPS := $(SHADERS_SRC), \
       OUTPUT_FILE := $(SHADERS_AIR), \
       SUPPORT_DIR := $(SHADERS_SUPPORT_DIR), \
-      COMMAND := $(METAL) -c -std=osx-metal2.0 -o $(SHADERS_AIR) $(SHADERS_SRC), \
+      COMMAND := $(METAL) -c -std=osx-metal2.0 \
+          -mmacosx-version-min=$(MACOSX_METAL_VERSION_MIN) \
+          -o $(SHADERS_AIR) $(SHADERS_SRC), \
   ))
 
   $(eval $(call SetupExecute, metallib_shaders, \

make/modules/java.security.jgss/Lib.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2011, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2011, 2022, 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
@@ -40,6 +40,19 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBJ2GSS, \
 
 TARGETS += $(BUILD_LIBJ2GSS)
 
+ifeq ($(call isTargetOs, windows), true)
+  $(eval $(call SetupJdkLibrary, BUILD_LIBSSPI_BRIDGE, \
+      NAME := sspi_bridge, \
+      OPTIMIZATION := LOW, \
+      CFLAGS := $(CFLAGS_JDKLIB) \
+          -I$(TOPDIR)/src/java.security.jgss/share/native/libj2gss, \
+      LDFLAGS := $(LDFLAGS_JDKLIB) \
+          $(call SET_SHARED_LIBRARY_ORIGIN) \
+  ))
+
+  TARGETS += $(BUILD_LIBSSPI_BRIDGE)
+endif
+
 ################################################################################
 
 ifneq ($(BUILD_CRYPTO), false)
@@ -57,17 +70,6 @@ ifneq ($(BUILD_CRYPTO), false)
     ))
 
     TARGETS += $(BUILD_LIBW2K_LSA_AUTH)
-
-    $(eval $(call SetupJdkLibrary, BUILD_LIBSSPI_BRIDGE, \
-        NAME := sspi_bridge, \
-        OPTIMIZATION := LOW, \
-        CFLAGS := $(CFLAGS_JDKLIB) \
-            -I$(TOPDIR)/src/java.security.jgss/share/native/libj2gss, \
-        LDFLAGS := $(LDFLAGS_JDKLIB) \
-            $(call SET_SHARED_LIBRARY_ORIGIN) \
-    ))
-
-    TARGETS += $(BUILD_LIBSSPI_BRIDGE)
   endif
 
   ifeq ($(call isTargetOs, macosx), true)

make/modules/jdk.incubator.vector/Lib.gmk

@@ -28,15 +28,15 @@ include LibCommon.gmk
 ################################################################################
 
 ifeq ($(call isTargetOs, linux windows)+$(call isTargetCpu, x86_64)+$(INCLUDE_COMPILER2), true+true+true)
-  $(eval $(call SetupJdkLibrary, BUILD_LIBSVML, \
-      NAME := svml, \
+  $(eval $(call SetupJdkLibrary, BUILD_LIBJSVML, \
+      NAME := jsvml, \
       CFLAGS := $(CFLAGS_JDKLIB), \
       LDFLAGS := $(LDFLAGS_JDKLIB) \
           $(call SET_SHARED_LIBRARY_ORIGIN), \
       LDFLAGS_windows := -defaultlib:msvcrt, \
   ))
 
-  TARGETS += $(BUILD_LIBSVML)
+  TARGETS += $(BUILD_LIBJSVML)
 endif
 
 ################################################################################

make/modules/jdk.javadoc/Gendata.gmk

@@ -72,7 +72,9 @@ $(JDK_JAVADOC_DIR)/_element_lists.marker: \
     $(MODULE_INFOS)
 	$(call MakeTargetDir)
 	$(call LogInfo, Creating javadoc element lists)
-	$(RM) -r $(ELEMENT_LISTS_DIR)
+	$(RM) $(ELEMENT_LISTS_DIR)/element-list-{$(call CommaList, \
+		$(call sequence, $(GENERATE_SYMBOLS_FROM_JDK_VERSION), \
+				 $(JDK_SOURCE_TARGET_VERSION)))}.txt
         # Generate element-list files for JDK 11 to current-1
 	$(call ExecuteWithLog, $@_historic, \
 	    $(JAVA_SMALL) $(INTERIM_LANGTOOLS_ARGS) \

make/modules/jdk.jpackage/Lib.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2018, 2022, 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
@@ -24,6 +24,7 @@
 #
 
 include LibCommon.gmk
+include LauncherCommon.gmk
 
 ################################################################################
 
@@ -75,6 +76,8 @@ $(eval $(call SetupJdkExecutable, BUILD_JPACKAGE_APPLAUNCHEREXE, \
     LIBS_macosx := $(LIBCXX) -framework Cocoa, \
     LIBS_windows := $(LIBCXX), \
     LIBS_linux := -ldl, \
+    MANIFEST := $(JAVA_MANIFEST), \
+    MANIFEST_VERSION := $(VERSION_NUMBER_FOUR_POSITIONS) \
 ))
 
 JPACKAGE_TARGETS += $(BUILD_JPACKAGE_APPLAUNCHEREXE)
@@ -92,9 +95,9 @@ ifeq ($(call isTargetOs, linux), true)
   JPACKAGE_LIBAPPLAUNCHER_INCLUDES := $(addprefix -I, $(JPACKAGE_LIBAPPLAUNCHER_SRC))
 
   $(eval $(call SetupJdkLibrary, BUILD_JPACKAGE_LIBAPPLAUNCHER, \
-      NAME := jpackageapplauncher, \
+      NAME := jpackageapplauncheraux, \
       OUTPUT_DIR := $(JPACKAGE_OUTPUT_DIR), \
-      SYMBOLS_DIR := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/libjpackageapplauncher, \
+      SYMBOLS_DIR := $(SUPPORT_OUTPUTDIR)/native/$(MODULE)/libjpackageapplauncheraux, \
       SRC := $(JPACKAGE_LIBAPPLAUNCHER_SRC), \
       EXCLUDE_FILES := LinuxLauncher.c LinuxPackage.c, \
       TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
@@ -175,6 +178,8 @@ ifeq ($(call isTargetOs, windows), true)
       LDFLAGS := $(BUILD_JPACKAGE_APPLAUNCHEREXE_LDFLAGS), \
       LIBS := $(BUILD_JPACKAGE_APPLAUNCHEREXE_LIBS), \
       LIBS_windows := $(BUILD_JPACKAGE_APPLAUNCHEREXE_LIBS_windows), \
+      MANIFEST := $(JAVA_MANIFEST), \
+      MANIFEST_VERSION := $(VERSION_NUMBER_FOUR_POSITIONS) \
   ))
 
   JPACKAGE_TARGETS += $(BUILD_JPACKAGE_APPLAUNCHERWEXE)

make/modules/jdk.localedata/Gensrc.gmk

@@ -46,6 +46,7 @@ $(CLDR_GEN_DONE): $(wildcard $(CLDR_DATA_DIR)/dtd/*.dtd) \
 	$(call ExecuteWithLog, $@, \
 	    $(TOOL_CLDRCONVERTER) -base $(CLDR_DATA_DIR) \
 	    -baselocales "en-US" \
+	    -year $(COPYRIGHT_YEAR) \
 	    -o $(GENSRC_DIR))
 	$(TOUCH) $@
 

make/scripts/fixpath.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (c) 2020, 2021, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2020, 2022, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -28,6 +28,14 @@
 # available, or extract values automatically from the environment if missing.
 # This is robust, but slower.
 function setup() {
+
+  # Make regexp tests case insensitive
+  shopt -s nocasematch
+  # Prohibit msys2 from meddling with paths
+  export MSYS2_ARG_CONV_EXCL="*"
+  #  Make sure WSL gets a copy of the path
+  export WSLENV=PATH/l
+
   while getopts "e:p:r:t:c:qmi" opt; do
     case "$opt" in
     e) PATHTOOL="$OPTARG" ;;
@@ -87,13 +95,6 @@ function setup() {
     wintemp_win="$($CMD /q /c echo %TEMP% 2>/dev/null | tr -d \\n\\r)"
     WINTEMP="$($PATHTOOL -u "$wintemp_win")"
   fi
-
-  # Make regexp tests case insensitive
-  shopt -s nocasematch
-  # Prohibit msys2 from meddling with paths
-  export MSYS2_ARG_CONV_EXCL="*"
-  #  Make sure WSL gets a copy of the path
-  export WSLENV=PATH/l
 }
 
 # Cleanup handling
@@ -299,6 +300,19 @@ function convert_path() {
   if [[ $arg =~ ^([^/]*|-[^:=]*[:=]|.*file://|/[a-zA-Z:]{1,3}:?)($DRIVEPREFIX/)([a-z])(/[^/]+.*$) ]] ; then
     prefix="${BASH_REMATCH[1]}"
     winpath="${BASH_REMATCH[3]}:${BASH_REMATCH[4]}"
+
+    # If the thing in its entirety points to an existing path, use that instead of thinking
+    # we have a prefix. This can only happen if the top-level directory has a single-letter name.
+    if [[ ${#prefix} -eq 2 && "${prefix:0:1}" == "/" ]]; then
+      possiblepath="${BASH_REMATCH[1]}/${BASH_REMATCH[3]}${BASH_REMATCH[4]}"
+      if [[ -e "$possiblepath" || -e "$(dirname $possiblepath)" || -e "$(echo $possiblepath | cut -d / -f 1-5)" ]] ; then
+        prefix=
+        drivepart="${possiblepath:1:1}"
+        pathpart="${possiblepath:2}"
+        winpath="$drivepart:$pathpart"
+      fi
+    fi
+
     # Change slash to backslash (or vice versa if mixed mode)
     if [[ $MIXEDMODE != true ]]; then
       winpath="${winpath//'/'/'\'}"

make/test/BuildFailureHandler.gmk

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
@@ -60,24 +60,6 @@ $(eval $(call SetupJavaCompilation, BUILD_FAILURE_HANDLER, \
 
 TARGETS += $(BUILD_FAILURE_HANDLER)
 
-################################################################################
-
-ifeq ($(call isTargetOs, windows), true)
-
-  $(eval $(call SetupNativeCompilation, BUILD_LIBTIMEOUT_HANDLER, \
-        NAME := timeoutHandler, \
-        SRC := $(FH_BASEDIR)/src/windows/native/libtimeoutHandler, \
-        OBJECT_DIR := $(FH_SUPPORT)/libtimeoutHandler, \
-        OUTPUT_DIR := $(FH_SUPPORT), \
-        CFLAGS := $(CFLAGS_JDKLIB), \
-        LDFLAGS := $(LDFLAGS_JDKLIB), \
-        OPTIMIZATION := LOW, \
-  ))
-
-  TARGETS += $(BUILD_LIBTIMEOUT_HANDLER)
-
-endif
-
 ################################################################################
 # Targets for building test-image.
 ################################################################################
@@ -99,10 +81,6 @@ IMAGES_TARGETS += $(COPY_FH)
 # Use JTREG_TESTS for jtreg tests parameter
 #
 RUN_DIR := $(FH_SUPPORT)/test
-# Add the dir of the dll to the path on windows
-ifeq ($(call isTargetOs, windows), true)
-  export PATH := $(PATH);$(FH_SUPPORT)
-endif
 
 test:
 	$(RM) -r $(RUN_DIR)

make/test/JtregNativeHotspot.gmk

@@ -863,7 +863,7 @@ ifeq ($(call isTargetOs, linux), true)
     BUILD_HOTSPOT_JTREG_EXECUTABLES_LIBS_exeFPRegs := -ldl
     BUILD_HOTSPOT_JTREG_LIBRARIES_LIBS_libAsyncGetCallTraceTest := -ldl
 else
-  BUILD_HOTSPOT_JTREG_EXCLUDE += libtest-rw.c libtest-rwx.c libTestJNI.c \
+  BUILD_HOTSPOT_JTREG_EXCLUDE += libtest-rw.c libtest-rwx.c \
       exeinvoke.c exestack-gap.c exestack-tls.c libAsyncGetCallTraceTest.cpp
 endif
 
@@ -871,7 +871,7 @@ BUILD_HOTSPOT_JTREG_EXECUTABLES_LIBS_exesigtest := -ljvm
 
 ifeq ($(call isTargetOs, windows), true)
     BUILD_HOTSPOT_JTREG_EXECUTABLES_CFLAGS_exeFPRegs := -MT
-    BUILD_HOTSPOT_JTREG_EXCLUDE += exesigtest.c libterminatedThread.c
+    BUILD_HOTSPOT_JTREG_EXCLUDE += exesigtest.c libterminatedThread.c libTestJNI.c
     BUILD_HOTSPOT_JTREG_LIBRARIES_LIBS_libatExit := jvm.lib
 else
     BUILD_HOTSPOT_JTREG_LIBRARIES_LIBS_libbootclssearch_agent += -lpthread

make/test/JtregNativeJdk.gmk

@@ -87,8 +87,9 @@ ifeq ($(call isTargetOs, macosx), true)
       -framework Cocoa -framework SystemConfiguration
 else
   BUILD_JDK_JTREG_EXCLUDE += libTestMainKeyWindow.m
-  BUILD_JDK_JTREG_EXCLUDE += exeJniInvocationTest.c
   BUILD_JDK_JTREG_EXCLUDE += libTestDynamicStore.m
+  BUILD_JDK_JTREG_EXCLUDE += exeJniInvocationTest.c
+  BUILD_JDK_JTREG_EXCLUDE += exeLibraryCache.c
 endif
 
 ifeq ($(call isTargetOs, linux), true)

src/demo/share/java2d/J2DBench/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2002, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2002, 2021, Oracle and/or its affiliates. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -80,10 +80,10 @@ SCM_DIRs = .hg .svn CVS RCS SCCS Codemgr_wsdata deleted_files
 all: mkdirs J2DBench.jar J2DAnalyzer.jar
 
 run: mkdirs J2DBench.jar
-	java -jar J2DBench.jar
+	java -jar $(DIST)/J2DBench.jar
 
 analyze: mkdirs J2DAnalyzer.jar
-	java -jar J2DAnalyzer.jar
+	java -jar $(DIST)/J2DAnalyzer.jar
 
 J2DBench.jar: \
 	$(J2DBENCH_CLASSES) $(J2DBENCH_RESOURCES) \

src/demo/share/jfc/SwingSet2/TableDemo.java

@@ -549,7 +549,10 @@ public class TableDemo extends DemoModule {
             public int getRowCount() { return data.length;}
             public Object getValueAt(int row, int col) {return data[row][col];}
             public String getColumnName(int column) {return names[column];}
-            public Class<?> getColumnClass(int c) {return getValueAt(0, c).getClass();}
+            public Class<?> getColumnClass(int c) {
+                Object obj = getValueAt(0, c);
+                return obj != null ? obj.getClass() : Object.class;
+            }
             public boolean isCellEditable(int row, int col) {return col != 5;}
             public void setValueAt(Object aValue, int row, int column) { data[row][column] = aValue; }
          };
@@ -738,4 +741,13 @@ public class TableDemo extends DemoModule {
         footerTextField.setDragEnabled(dragEnabled);
     }
 
+    @Override
+    public ImageIcon createImageIcon(String filename, String description) {
+        ImageIcon imageIcon = super.createImageIcon(filename, description);
+        AccessibleContext context = imageIcon.getAccessibleContext();
+        if (context!= null) {
+            context.setAccessibleName(description);
+        }
+        return imageIcon;
+    }
 }