JBR-5233 Setup/teardown necessary keyboard layouts in macOS keyboard tests

Use ::delete for GDI+ bitmaps to match ::new

.github/actions/config/action.yml

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+#
+# 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

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+#
+# 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

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+#
+# 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

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+#
+# 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

@@ -0,0 +1,51 @@
+#!/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="$1"
+BUILD_DIR="$(ls -d 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'

.hgtags

@@ -1,664 +0,0 @@
-3cc80be736f24704e505ad8ddaa598dec3fa2ed3 jdk-9+181
-e2b70be325bd10dae4c06f74c46d70d480854916 jdk-9+179
-5b16a1c3ccffff2a82c88bb7ea894c4ff1c9ebde jdk-9+180
-43bf6f30fcba031ecf0cc7e511efe3a8179d0f77 jdk-9+176
-d9f6bc6ba599d0487dc18b2fbdb6c34eedf6f958 jdk-9+177
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.jcheck/conf

@@ -1,7 +1,7 @@
 [general]
 project=jdk-updates
 jbs=JDK
-version=17.0.4
+version=17.0.6
 
 [checks]
 error=author,committer,reviewers,merge,issues,executable,symlink,message,hg-tag,whitespace,problemlists

README.md

@@ -3,19 +3,21 @@
 # Welcome to JetBrains Runtime!
 
 JetBrains Runtime is a fork of [OpenJDK](https://github.com/openjdk/jdk) available for Windows, Mac OS X, and Linux.
-It includes a number enhancements in font rendering, HiDPI support, ligatures, performance improvements, and bugfixes.
+It includes a number of enhancements in font rendering, ligatures, HiDPI support, windowing/focus subsystems, performance improvements, and bugfixes.
 
 ## Releases
 Download the latest releases of JetBrains Runtime to use with JetBrains IDEs. The full list
 can be found on the [releases page](https://github.com/JetBrains/JetBrainsRuntime/releases).
 
-| IDE Version | Latest JBR | Date Released |
-|  ---        | ---        | ---           |
-| 2022.2      | [17.0.4-b469.46](https://github.com/JetBrains/JetBrainsRuntime/releases/tag/jbr-release-17.0.4b469.46)| 22-Aug-2022   |
+| IDE Version | Latest JBR                                                                                             | Date Released |
+|  ---        |--------------------------------------------------------------------------------------------------------|---------------|
+| 2023.1      | [17.0.6-b802.1](https://github.com/JetBrains/JetBrainsRuntime/releases/tag/jbr-release-17.0.6b802.1)   | 07-Feb-2023   |
+| 2022.3      | [17.0.5-b653.25](https://github.com/JetBrains/JetBrainsRuntime/releases/tag/jbr-release-17.0.5b653.25) | 10-Jan-2023   |
+| 2022.2      | [17.0.5-b469.71](https://github.com/JetBrains/JetBrainsRuntime/releases/tag/jbr-release-17.0.5b469.71) | 14-Nov-2022   |
 
 
 ## Contents
-- [Welcome to JetBrains Runtime](#jetbrains-runtime)
+- [Welcome to JetBrains Runtime](#welcome-to-jetbrains-runtime)
   - [Products Built on JetBrains Runtime](#products-built-on-jetbrains-runtime)
   - [Getting Sources](#getting-sources)
     - [macOS, Linux](#macos-linux)
@@ -40,6 +42,7 @@ can be found on the [releases page](https://github.com/JetBrains/JetBrainsRuntim
 * [PyCharm](https://www.jetbrains.com/pycharm/). The Python IDE from JetBrains.
 * [Rider](https://www.jetbrains.com/rider/). The cross-platform .NET IDE from JetBrains.
 * [RubyMine](https://www.jetbrains.com/ruby/). The Ruby and Rails IDE from JetBrains.
+* [Toolbox App](https://www.jetbrains.com/toolbox-app/). JetBrains IDE manager.
 * [WebStorm](https://www.jetbrains.com/webstorm/). The JavaScript IDE from JetBrains.
 * [YourKit](https://www.yourkit.com/). Java and .NET profilers.
 
@@ -77,7 +80,7 @@ Run these commands in the new container:
 ```
 $ docker run -v `pwd`../../../../:/JetBrainsRuntime -it 942ea9900054
 # cd /JetBrainsRuntime
-# git checkout master17
+# git checkout jbr17
 # sh ./configure
 # make images CONF=linux-x86_64-normal-server-release
 ```
@@ -86,13 +89,13 @@ $ docker run -v `pwd`../../../../:/JetBrainsRuntime -it 942ea9900054
 Install the necessary tools, libraries, and headers with:
 ```
 $ sudo apt-get install autoconf make build-essential libx11-dev libxext-dev libxrender-dev libxtst-dev \
-       libxt-dev libxrandr-dev libcups2-dev libfontconfig1-dev libasound2-dev \
+       libxt-dev libxrandr-dev libcups2-dev libfontconfig1-dev libasound2-dev libspeechd-dev \
        java-16-amazon-corretto-jdk
 ```
 Then run the following:
 ```
 $ cd JetBrainsRuntime
-$ git checkout master17
+$ git checkout jbr17
 $ sh ./configure
 $ make images
 ```
@@ -120,21 +123,33 @@ The first command sets up environment variables, the second starts a Cygwin shel
 In the Cygwin shell: 
 ```
 $ cd JetBrainsRuntime
-$ git checkout master17
+$ git checkout jbr17
 $ bash configure --with-toolchain-version=2019
 $ make images
 ```
 This will build the release configuration under `./build/windows-x86_64-server-release/`.
 
+#### Enable optional NVDA screen reader support
+If you want to add support of a11y announcing via [NVDA screen reader](https://www.nvaccess.org/about-nvda/),
+you will need to bundle the NVDA Controller Client library.
+You can do it with the following steps:
+1. Download the NVDA Controller Client library. You can find the link in its official README [here](https://github.com/nvaccess/nvda/blob/master/extras/controllerClient/readme.md)
+2. Pass the path to the unpacked package to `configure` via an additional flag `--with-nvdacontrollerclient=<path>`.
+   The build system will search the required library files under `<path>/<target-arch>`.
+
+#### Disable optional JAWS screen reader support
+JBR is built with built-in support of JAWS screen reader.
+If you want to disable it, run `configure` with the additional flag `--disable-jaws-client`.
+
 ### macOS
 Install the following:
-* Xcode command line developer tools and `autoconf` via [Homebrew](getDpiInfo).
+* Xcode command line developer tools and `autoconf` via [Homebrew](https://brew.sh/).
 * Java 16 (for instance, from [AdoptOpenJDK](https://adoptopenjdk.net/installation.html?variant=openjdk16&jvmVariant=hotspot#)).
 
 From the command line:
 ```
 $ cd JetBrainsRuntime
-$ git checkout master17
+$ git checkout jbr17
 $ sh ./configure
 $ make images
 ```
@@ -170,7 +185,7 @@ We are happy to receive your pull requests!
 Before you submit one, please sign our [Contributor License Agreement (CLA)](https://www.jetbrains.com/agreements/cla/).
 
 ## Resources
-* [JetBrains Runtime on github](https://github.com/JetBrains/JetBrainsRuntime).
+* [JetBrains Runtime on GitHub](https://github.com/JetBrains/JetBrainsRuntime).
 * [OpenJDK build instructions](https://openjdk.java.net/groups/build/doc/building.html).
 * [OpenJDK test instructions](https://htmlpreview.github.io/?https://raw.githubusercontent.com/openjdk/jdk/master/doc/building.html#running-tests).
 * [How to develop OpenJDK with CLion](https://blog.jetbrains.com/clion/2020/03/openjdk-with-clion/).

doc/building.html

@@ -70,6 +70,9 @@
 <li><a href="#make-control-variables">Make Control Variables</a></li>
 </ul></li>
 <li><a href="#running-tests">Running Tests</a></li>
+<li><a href="#signing">Signing</a><ul>
+<li><a href="#macos-1">macOS</a></li>
+</ul></li>
 <li><a href="#cross-compiling">Cross-compiling</a><ul>
 <li><a href="#cross-compiling-the-easy-way-with-openjdk-devkits">Cross compiling the easy way with OpenJDK devkits</a></li>
 <li><a href="#boot-jdk-and-build-jdk">Boot JDK and Build JDK</a></li>
@@ -196,7 +199,7 @@
 <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>
@@ -279,7 +282,7 @@
 </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>
@@ -298,7 +301,7 @@
 <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>
@@ -489,7 +492,7 @@
 <li><code>CONF</code> and <code>CONF_NAME</code> - Selecting the configuration(s) to use. See <a href="#using-multiple-configurations">Using Multiple Configurations</a></li>
 </ul>
 <h4 id="test-make-control-variables">Test Make Control Variables</h4>
-<p>These make control variables only make sense when running tests. Please see <a href="testing.html">Testing the JDK</a> for details.</p>
+<p>These make control variables only make sense when running tests. Please see <strong>Testing the JDK</strong> (<a href="testing.html">html</a>, <a href="testing.md">markdown</a>) for details.</p>
 <ul>
 <li><code>TEST</code></li>
 <li><code>TEST_JOBS</code></li>
@@ -515,7 +518,13 @@
 </ul>
 <p>To execute the most basic tests (tier 1), use:</p>
 <pre><code>make run-test-tier1</code></pre>
-<p>For more details on how to run tests, please see the <a href="testing.html">Testing the JDK</a> document.</p>
+<p>For more details on how to run tests, please see <strong>Testing the JDK</strong> (<a href="testing.html">html</a>, <a href="testing.md">markdown</a>).</p>
+<h2 id="signing">Signing</h2>
+<h3 id="macos-1">macOS</h3>
+<p>Modern versions of macOS require applications to be signed and notarizied before distribution. See Apple's documentation for more background on what this means and how it works. To help support this, the JDK build can be configured to automatically sign all native binaries, and the JDK bundle, with all the options needed for successful notarization, as well as all the entitlements required by the JDK. To enable <code>hardened</code> signing, use configure parameter <code>--with-macosx-codesign=hardened</code> and configure the signing identity you wish to use with <code>--with-macosx-codesign-identity=&lt;identity&gt;</code>. The identity refers to a signing identity from Apple that needs to be preinstalled on the build host.</p>
+<p>When not signing for distribution with the hardened option, the JDK build will still attempt to perform <code>adhoc</code> signing to add the special entitlement <code>com.apple.security.get-task-allow</code> to each binary. This entitlement is required to be able to dump core files from a process. Note that adding this entitlement makes the build invalid for notarization, so it is only added when signing in <code>debug</code> mode. To explicitly enable this kind of adhoc signing, use configure parameter <code>--with-macosx-codesign=debug</code>. It will be enabled by default in most cases.</p>
+<p>It's also possible to completely disable any explicit codesign operations done by the JDK build using the configure parameter <code>--without-macosx-codesign</code>. The exact behavior then depends on the architecture. For macOS on x64, it (at least at the time of this writing) results in completely unsigned binaries that should still work fine for development and debugging purposes. On aarch64, the Xcode linker will apply a default &quot;adhoc&quot; signing, without any entitlements. Such a build does not allow dumping core files.</p>
+<p>The default mode &quot;auto&quot; will try for <code>hardened</code> signing if the debug level is <code>release</code> and either the default identity or the specified identity is valid. If hardened isn't possible, then <code>debug</code> signing is chosen if it works. If nothing works, the codesign build step is disabled.</p>
 <h2 id="cross-compiling">Cross-compiling</h2>
 <p>Cross-compiling means using one platform (the <em>build</em> platform) to generate output that can ran on another platform (the <em>target</em> platform).</p>
 <p>The typical reason for cross-compiling is that the build is performed on a more powerful desktop computer, but the resulting binaries will be able to run on a different, typically low-performing system. Most of the complications that arise when building for embedded is due to this separation of <em>build</em> and <em>target</em> systems.</p>

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
@@ -818,7 +818,7 @@ configuration, as opposed to the "configure time" configuration.
 #### Test Make Control Variables
 
 These make control variables only make sense when running tests. Please see
-[Testing the JDK](testing.html) for details.
+**Testing the JDK** ([html](testing.html), [markdown](testing.md)) for details.
 
   * `TEST`
   * `TEST_JOBS`
@@ -865,8 +865,44 @@ To execute the most basic tests (tier 1), use:
 make run-test-tier1
 ```
 
-For more details on how to run tests, please see the [Testing
-the JDK](testing.html) document.
+For more details on how to run tests, please see **Testing the JDK**
+([html](testing.html), [markdown](testing.md)).
+
+## Signing
+
+### macOS
+
+Modern versions of macOS require applications to be signed and notarizied before
+distribution. See Apple's documentation for more background on what this means
+and how it works. To help support this, the JDK build can be configured to
+automatically sign all native binaries, and the JDK bundle, with all the options
+needed for successful notarization, as well as all the entitlements required by
+the JDK. To enable `hardened` signing, use configure parameter
+`--with-macosx-codesign=hardened` and configure the signing identity you wish to
+use with `--with-macosx-codesign-identity=<identity>`. The identity refers to a
+signing identity from Apple that needs to be preinstalled on the build host.
+
+When not signing for distribution with the hardened option, the JDK build will
+still attempt to perform `adhoc` signing to add the special entitlement
+`com.apple.security.get-task-allow` to each binary. This entitlement is required
+to be able to dump core files from a process. Note that adding this entitlement
+makes the build invalid for notarization, so it is only added when signing in
+`debug` mode. To explicitly enable this kind of adhoc signing, use configure
+parameter `--with-macosx-codesign=debug`. It will be enabled by default in most
+cases.
+
+It's also possible to completely disable any explicit codesign operations done
+by the JDK build using the configure parameter `--without-macosx-codesign`.
+The exact behavior then depends on the architecture. For macOS on x64, it (at
+least at the time of this writing) results in completely unsigned binaries that
+should still work fine for development and debugging purposes. On aarch64, the
+Xcode linker will apply a default "adhoc" signing, without any entitlements.
+Such a build does not allow dumping core files.
+
+The default mode "auto" will try for `hardened` signing if the debug level is
+`release` and either the default identity or the specified identity is valid.
+If hardened isn't possible, then `debug` signing is chosen if it works. If
+nothing works, the codesign build step is disabled.
 
 ## Cross-compiling
 

jb/project/docker/Dockerfile.musl_x64

@@ -5,7 +5,7 @@
 # image creation reproducible.
 # NB: this also means there may be no security-related fixes there, need to
 # move the version to the next manually.
-FROM alpine:3.5
+FROM alpine:3.14
 
 # Install the necessary build tools
 RUN     apk --no-cache add --update bash grep tar zip bzip2 rsync fontconfig build-base \

jb/project/tools/common/scripts/common.sh

@@ -41,7 +41,9 @@ OPENJDK_TAG=$(git log --simplify-by-decoration --decorate=short --pretty=short |
 VERSION_FEATURE=$(getVersionProp "DEFAULT_VERSION_FEATURE")
 VERSION_INTERIM=$(getVersionProp "DEFAULT_VERSION_INTERIM")
 VERSION_UPDATE=$(getVersionProp "DEFAULT_VERSION_UPDATE")
+VERSION_PATCH=$(getVersionProp "DEFAULT_VERSION_PATCH")
 [[ $VERSION_UPDATE = 0 ]] && JBSDK_VERSION="$VERSION_FEATURE" || JBSDK_VERSION="${VERSION_FEATURE}.${VERSION_INTERIM}.${VERSION_UPDATE}"
+[[ $VERSION_PATCH = 0 ]] || JBSDK_VERSION="${VERSION_FEATURE}.${VERSION_INTERIM}.${VERSION_UPDATE}.${VERSION_PATCH}"
 echo "##teamcity[setParameter name='env.JBSDK_VERSION' value='${JBSDK_VERSION}']"
 JDK_BUILD_NUMBER=${JDK_BUILD_NUMBER:=$(echo $OPENJDK_TAG | awk -F "-|[+]" '{print $3}')}
 [ -z $JDK_BUILD_NUMBER ] && JDK_BUILD_NUMBER=1
@@ -98,11 +100,18 @@ REPRODUCIBLE_BUILD_OPTS="--enable-reproducible-build
 
 function zip_native_debug_symbols() {
   image_bundle_path=$(echo $1 | cut -d"/" -f-4)
+  jdk_name=$(echo $1 | cut -d"/" -f5)
   jbr_diz_name=$2
 
-  (cd $image_bundle_path && find . -name '*.diz' -exec rsync -R {} ../../../../dizfiles \; )
+  [ -d "dizfiles" ] && rm -rf dizfiles
+  mkdir dizfiles
 
-  (cd dizfiles && find . -print0 | COPYFILE_DISABLE=1 \
+  rsync_target="../../../../dizfiles"
+  [ -z "$jdk_name" ] && rsync_target=$rsync_target"/"$jbr_diz_name
+  (cd $image_bundle_path && find . -name '*.diz' -exec rsync -R {} $rsync_target \;)
+  [ ! -z "$jdk_name" ] && mv dizfiles/$jdk_name dizfiles/$jbr_diz_name
+
+  (cd dizfiles && find $jbr_diz_name -print0 | COPYFILE_DISABLE=1 \
     tar --no-recursion --null -T - -czf ../"$jbr_diz_name".tar.gz) || do_exit $?
 }
 

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

@@ -63,7 +63,7 @@ function create_image_bundle {
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
   JBR=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}aarch64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-${libc_type_suffix}aarch64-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}aarch64-${fastdebug_infix:-}b${build_number}
 
 
   echo Running jlink....

jb/project/tools/linux/scripts/mkimages_x64.sh

@@ -63,7 +63,7 @@ function create_image_bundle {
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
   JBR=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-${libc_type_suffix}x64-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x64-${fastdebug_infix:-}b${build_number}
 
   echo Running jlink....
   [ -d "$IMAGES_DIR"/"$__root_dir" ] && rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
@@ -93,7 +93,7 @@ function create_image_bundle {
   [ -f "$JBR".tar.gz ] && rm "$JBR.tar.gz"
   touch -c -d "@$SOURCE_DATE_EPOCH" "$JBR".tar
   gzip "$JBR".tar || do_exit $?
-  rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
+  #rm -rf "${IMAGES_DIR:?}"/"$__root_dir"
 }
 
 WITH_DEBUG_LEVEL="--with-debug-level=release"

jb/project/tools/linux/scripts/mkimages_x86.sh

@@ -52,7 +52,7 @@ function create_image_bundle {
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
   JBR=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x86-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-${libc_type_suffix}x86-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-linux-${libc_type_suffix}x86-${fastdebug_infix:-}b${build_number}
 
   echo Running jlink....
   [ -d "$IMAGES_DIR"/"$__root_dir" ] && rm -rf "${IMAGES_DIR:?}"/"$__root_dir"

jb/project/tools/mac/scripts/mkimages.sh

@@ -29,6 +29,7 @@ BOOT_JDK=${BOOT_JDK:=$(/usr/libexec/java_home -v 16)}
 
 function do_configure {
   if [[ "${architecture}" == *aarch64* ]]; then
+
     sh configure \
       $WITH_DEBUG_LEVEL \
       --with-vendor-name="${VENDOR_NAME}" \
@@ -43,9 +44,6 @@ function do_configure {
       --with-macosx-version-max="${MACOSX_VERSION_MAX:="11.00.00"}" \
       --disable-hotspot-gtest --disable-javac-server --disable-full-docs --disable-manpages \
       --enable-cds=no \
-      --with-extra-cflags="-F$(pwd)/Frameworks" \
-      --with-extra-cxxflags="-F$(pwd)/Frameworks" \
-      --with-extra-ldflags="-F$(pwd)/Frameworks" \
       $STATIC_CONF_ARGS \
       $REPRODUCIBLE_BUILD_OPTS \
       $WITH_ZIPPED_NATIVE_DEBUG_SYMBOLS \
@@ -84,7 +82,7 @@ function create_image_bundle {
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
   JBR=${__bundle_name}-${JBSDK_VERSION}-osx-${architecture}-${fastdebug_infix:-}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-${architecture}-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-osx-${architecture}-${fastdebug_infix:-}b${build_number}
 
   JRE_CONTENTS=$tmp/$__root_dir/Contents
   mkdir -p "$JRE_CONTENTS" || do_exit $?

jb/project/tools/test/check_jbr_size.sh

@@ -2,20 +2,27 @@
 
 set -euo pipefail
 
+TC_PRINT=0
+# Always print TeamCity service messages if running under TeamCity
+[[ -n "${TEAMCITY_VERSION:-}" ]] && TC_PRINT=1
+
 while getopts ":t" o; do
     case "${o}" in
-        t)
-          t="With Teamcity tests info"
-          TC_PRINT=1
-          ;;
+        t) TC_PRINT=1 ;;
+        *);;
     esac
 done
 shift $((OPTIND-1))
 
-NEWFILEPATH=$1
-CONFIGID=$2
-BUILDID=$3
-TOKEN=$4
+NEWFILEPATH="$1"
+CONFIGID="$2"
+BUILDID="$3"
+TOKEN="$4"
+
+if [ ! -f "$NEWFILEPATH" ]; then
+  echo "File not found: $NEWFILEPATH"
+  exit 1
+fi
 #
 # Get the size of new artifact
 #
@@ -29,11 +36,7 @@ case "${unameOut}" in
       NEWFILESIZE=$(stat -f%z "$NEWFILEPATH")
       ;;
     CYGWIN*)
-      NEWFILESIZE=$(stat -c%s$4
-#
-# Get the size of new artifact
-#
- "$NEWFILEPATH")
+      NEWFILESIZE=$(stat -c%s "$NEWFILEPATH")
       ;;
     MINGW*)
       NEWFILESIZE=$(stat -c%s "$NEWFILEPATH")
@@ -42,13 +45,13 @@ case "${unameOut}" in
       echo "Unknown machine: ${unameOut}"
       exit 1
 esac
-FILENAME=$(basename ${NEWFILEPATH})
+FILENAME=$(basename "${NEWFILEPATH}")
 
 #
 # Get pattern of artifact name
 # Base filename pattern: <BUNDLE_TYPE>-<JDK_VERSION>-<OS>-<ARCH>-b<BUILD>.tar.gz: jbr_dcevm-17.0.2-osx-x64-b1234.tar.gz
 # BUNDLE_TYPE: jbr, jbrsdk, jbr_dcevm, jbrsdk_jcef etc.
-# OS_ARCH_PATTERN - <os_architecture>: osx-x64, linux-aarch64, windows-x64 etc.
+# OS_ARCH_PATTERN - <os_architecture>: osx-x64, linux-aarch64, linux-musl-x64, windows-x64 etc.
 
 BUNDLE_TYPE=jbrsdk
 OS_ARCH_PATTERN=""
@@ -59,33 +62,37 @@ if [[ $FILENAME =~ $re ]]; then
   BUNDLE_TYPE=${BASH_REMATCH[1]}
   OS_ARCH_PATTERN=${BASH_REMATCH[2]}
   FILE_EXTENSION=${BASH_REMATCH[3]}
+else
+  echo "File name $FILENAME does not match regex $re"
+  exit 1
 fi
 
-if [ $TC_PRINT -eq 1 ]; then
-  testname_file_ext=`echo $FILE_EXTENSION | sed 's/\./_/g'`
-  testname=$BUNDLE_TYPE"_"$OS_ARCH_PATTERN$testname_file_ext
-  echo \#\#teamcity[testStarted name=\'$testname\']
-fi
-
-
-echo "BUNDLE_TYPE: "  $BUNDLE_TYPE
-echo "OS_ARCH_PATTERN: " $OS_ARCH_PATTERN
-echo "FILE_EXTENSION: " $FILE_EXTENSION
-echo "New size of $FILENAME = $NEWFILESIZE bytes."
-
+function test_started_msg() {
+  if [ $TC_PRINT -eq 1 ]; then
+    echo "##teamcity[testStarted name='$1']"
+  fi
+}
 
 function test_failed_msg() {
-  if [ $3 -eq 1 ]; then
-    echo \#\#teamcity[testFailed name=\'$1\' message=\'$2\']
+  if [ $TC_PRINT -eq 1 ]; then
+    echo "##teamcity[testFailed name='$1' message='$2']"
   fi
 }
 
 function test_finished_msg() {
-  if [ $2 -eq 1 ]; then
-    echo \#\#teamcity[testFinished name=\'$1\']
+  if [ $TC_PRINT -eq 1 ]; then
+    echo "##teamcity[testFinished name='$1']"
   fi
 }
 
+test_name="${BUNDLE_TYPE}_${OS_ARCH_PATTERN//\-/_}${FILE_EXTENSION//\./_}"
+test_started_msg "$test_name"
+
+echo "BUNDLE_TYPE: $BUNDLE_TYPE"
+echo "OS_ARCH_PATTERN: $OS_ARCH_PATTERN"
+echo "FILE_EXTENSION: $FILE_EXTENSION"
+echo "Size of $FILENAME is $NEWFILESIZE bytes"
+
 #
 # Get previous successful build ID
 # Example:
@@ -95,20 +102,21 @@ function test_finished_msg() {
 # expected return value
 # id="123".number="567"
 #
-CURL_RESPONSE=$(curl --header "Authorization: Bearer $TOKEN" "https://buildserver.labs.intellij.net/app/rest/builds/?locator=buildType:(id:$CONFIGID),status:success,count:1,finishDate:(build:$BUILDID,condition:before)")
+CURL_RESPONSE=$(curl -sSL --header "Authorization: Bearer $TOKEN" "https://buildserver.labs.intellij.net/app/rest/builds/?locator=buildType:(id:$CONFIGID),status:success,count:1,finishDate:(build:$BUILDID,condition:before)")
 re='id=\"([0-9]+)\".+number=\"([0-9\.]+)\"'
 
 # ID: Previous successful build id
 ID=0
 if [[ $CURL_RESPONSE =~ $re ]]; then
   ID=${BASH_REMATCH[1]}
-  echo "BUILD Number: ${BASH_REMATCH[2]}"
+  echo "Previous build ID: $ID"
+  echo "Previous build number: ${BASH_REMATCH[2]}"
 else
-  msg="ERROR: can't find previous build"
-  echo $msg
-  echo $CURL_RESPONSE
-  test_failed_msg $testname $msg $TC_PRINT
-  test_finished_msg $testname $TC_PRINT
+  msg="ERROR: cannot find previous build"
+  echo "$msg"
+  echo "$CURL_RESPONSE"
+  test_failed_msg "$test_name" "$msg"
+  test_finished_msg "$test_name"
   exit 1
 fi
 
@@ -118,36 +126,37 @@ fi
 # expected return value
 # name="jbrsdk_jcef*.tar.gz size="123'
 #
-CURL_RESPONSE=$(curl --header "Authorization: Bearer $TOKEN" "https://buildserver.labs.intellij.net/app/rest/builds/$ID?fields=id,number,artifacts(file(name,size))")
-echo "Atrifacts of previous build of $CONFIGID :"
-echo $CURL_RESPONSE
+CURL_RESPONSE=$(curl -sSL --header "Authorization: Bearer $TOKEN" "https://buildserver.labs.intellij.net/app/rest/builds/$ID?fields=id,number,artifacts(file(name,size))")
+echo "Artifacts of the previous build:"
+echo "$CURL_RESPONSE"
 
 # Find binary size (in response) with reg exp
-re='name=\"('$BUNDLE_TYPE'[^\"]+'${OS_ARCH_PATTERN}'[^\"]+'${FILE_EXTENSION}')\" size=\"([0-9]+)\"'
+re="name=\"(${BUNDLE_TYPE}[^\"]+${OS_ARCH_PATTERN}[^\"]+${FILE_EXTENSION})\" size=\"([0-9]+)\""
 
 if [[ $CURL_RESPONSE =~ $re ]]; then
-  OLDFILENAME=${BASH_REMATCH[1]}
-  echo "Prev artifact name: $OLDFILENAME"
-  OLDFILESIZE=${BASH_REMATCH[2]}
-  echo "Prev artifact size = $OLDFILESIZE"
+  prevFileName=${BASH_REMATCH[1]}
+  echo "Previous artifact name: $prevFileName"
+  prevFileSize=${BASH_REMATCH[2]}
+  echo "Previous artifact size: $prevFileSize"
 
-  let allowedSize=OLDFILESIZE+OLDFILESIZE/20 # use 5% threshold
-  echo "Allowed size = $allowedSize"
+  ((allowedSize=prevFileSize+prevFileSize/20)) # use 5% threshold
+  echo "Allowed size: $allowedSize"
   if [[ "$NEWFILESIZE" -gt "$allowedSize" ]]; then
-    msg="ERROR: new size is significally greater than prev size (need to investigate)"
-    echo $msg
-    test_failed_msg $testname $msg $TC_PRINT
-    test_finished_msg $testname $TC_PRINT
+    msg="ERROR: new size is significantly greater than previous size (need to investigate)"
+    echo "$msg"
+    test_failed_msg "$test_name" "$msg"
+    test_finished_msg "$test_name"
     exit 1
   else
     echo "PASSED"
-   test_finished_msg $testname $TC_PRINT
+    test_finished_msg "$test_name"
   fi
 else
-  msg="ERROR: can't find string with size in xml response:"
-  echo $msg
-  echo $CURL_RESPONSE
-  test_failed_msg $testname $msg $TC_PRINT
-  test_finished_msg $testname $TC_PRINT
+  msg="ERROR: cannot find string with size in xml response:"
+  echo "Regex: $re"
+  echo "$msg"
+  echo "$CURL_RESPONSE"
+  test_failed_msg "$test_name" "$msg"
+  test_finished_msg "$test_name"
   exit 1
 fi

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

@@ -30,6 +30,7 @@ source jb/project/tools/common/scripts/common.sh
 
 WORK_DIR=$(pwd)
 JCEF_PATH=${JCEF_PATH:=$WORK_DIR/jcef_win_aarch64}
+NVDA_PATH=${NVDA_PATH:=$WORK_DIR/nvda_controllerClient}
 
 function do_configure {
   sh ./configure \
@@ -45,6 +46,7 @@ function do_configure {
     --with-toolchain-version=$TOOLCHAIN_VERSION \
     --with-boot-jdk=$BOOT_JDK \
     --with-build-jdk=$BUILD_JDK \
+    --with-nvdacontrollerclient=$NVDA_PATH \
     --disable-ccache \
     --enable-cds=yes \
     $STATIC_CONF_ARGS \
@@ -61,7 +63,7 @@ function create_image_bundle {
   fastdebug_infix=''
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-aarch64-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-aarch64-${fastdebug_infix}b${build_number}
 
   echo Running jlink ...
   ${BUILD_JDK}/bin/jlink \
@@ -72,9 +74,8 @@ function create_image_bundle {
   if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
     sed 's/JBR/JBRSDK/g' $__root_dir/release > release
     mv release $__root_dir/release
-    for dir in $(ls -d $IMAGES_DIR/jdk/*); do
-      rsync -a --exclude demo --exclude sample $dir $__root_dir
-    done
+    cp $IMAGES_DIR/jdk/lib/src.zip $__root_dir/lib
+    cp $IMAGES_DIR/jdk/bin/*.pdb $__root_dir/bin
     copy_jmods "$__modules" "$__modules_path" "$__root_dir"/jmods
   fi
 }

jb/project/tools/windows/scripts/mkimages_x64.sh

@@ -24,6 +24,7 @@ source jb/project/tools/common/scripts/common.sh
 
 WORK_DIR=$(pwd)
 JCEF_PATH=${JCEF_PATH:=$WORK_DIR/jcef_win_x64}
+NVDA_PATH=${NVDA_PATH:=$WORK_DIR/nvda_controllerClient}
 
 function do_configure {
   sh ./configure \
@@ -36,6 +37,7 @@ function do_configure {
     --with-version-opt=b${build_number} \
     --with-toolchain-version=$TOOLCHAIN_VERSION \
     --with-boot-jdk=$BOOT_JDK \
+    --with-nvdacontrollerclient=$NVDA_PATH \
     --disable-ccache \
     --enable-cds=yes \
     $STATIC_CONF_ARGS \
@@ -52,7 +54,7 @@ function create_image_bundle {
   fastdebug_infix=''
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-x64-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x64-${fastdebug_infix}b${build_number}
 
   echo Running jlink ...
   ${JSDK}/bin/jlink \
@@ -63,9 +65,8 @@ function create_image_bundle {
     if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
     sed 's/JBR/JBRSDK/g' $__root_dir/release > release
     mv release $__root_dir/release
-    for dir in $(ls -d $IMAGES_DIR/jdk/*); do
-      rsync -a --exclude demo --exclude sample $dir $__root_dir
-    done
+    cp $IMAGES_DIR/jdk/lib/src.zip $__root_dir/lib
+    cp $IMAGES_DIR/jdk/bin/*.pdb $__root_dir/bin
     copy_jmods "$__modules" "$__modules_path" "$__root_dir"/jmods
   fi
 }

jb/project/tools/windows/scripts/mkimages_x86.sh

@@ -19,6 +19,8 @@ set -x
 source jb/project/tools/common/scripts/common.sh
 
 WORK_DIR=$(pwd)
+NVDA_PATH=${NVDA_PATH:=$WORK_DIR/nvda_controllerClient}
+
 
 function do_configure {
   sh ./configure \
@@ -31,6 +33,7 @@ function do_configure {
     --with-version-opt=b${build_number} \
     --with-toolchain-version=$TOOLCHAIN_VERSION \
     --with-boot-jdk=$BOOT_JDK \
+    --with-nvdacontrollerclient=$NVDA_PATH \
     --disable-ccache \
     --enable-cds=yes \
     $STATIC_CONF_ARGS \
@@ -47,7 +50,7 @@ function create_image_bundle {
   fastdebug_infix=''
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-x86-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x86-${fastdebug_infix}b${build_number}
 
   echo Running jlink ...
   ${JSDK}/bin/jlink \
@@ -58,9 +61,8 @@ function create_image_bundle {
   if [ "$__arch_name" == "$JBRSDK_BUNDLE" ]; then
     sed 's/JBR/JBRSDK/g' $__root_dir/release > release
     mv release $__root_dir/release
-    for dir in $(ls -d $IMAGES_DIR/jdk/*); do
-      rsync -a --exclude demo --exclude sample $dir $__root_dir
-    done
+    cp $IMAGES_DIR/jdk/lib/src.zip $__root_dir/lib
+    cp $IMAGES_DIR/jdk/bin/*.pdb $__root_dir/bin
     copy_jmods "$__modules" "$__modules_path" "$__root_dir"/jmods
   fi
 }

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

@@ -26,7 +26,7 @@ function pack_jbr {
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
   JBR=${__bundle_name}-${JBSDK_VERSION}-windows-aarch64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-aarch64-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-aarch64-${fastdebug_infix}b${build_number}
 
   echo Creating $JBR.tar.gz ...
   chmod -R ug+rwx,o+rx ${BASE_DIR}/$__root_dir

jb/project/tools/windows/scripts/pack_x64.sh

@@ -26,7 +26,7 @@ function pack_jbr {
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
   JBR=${__bundle_name}-${JBSDK_VERSION}-windows-x64-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-x64-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x64-${fastdebug_infix}b${build_number}
 
   echo Creating $JBR.tar.gz ...
   chmod -R ug+rwx,o+rx ${BASE_DIR}/$__root_dir

jb/project/tools/windows/scripts/pack_x86.sh

@@ -22,7 +22,7 @@ function pack_jbr {
 
   [ "$bundle_type" == "fd" ] && [ "$__arch_name" == "$JBRSDK_BUNDLE" ] && __bundle_name=$__arch_name && fastdebug_infix="fastdebug-"
   JBR=${__bundle_name}-${JBSDK_VERSION}-windows-x86-${fastdebug_infix}b${build_number}
-  __root_dir=${__bundle_name}-${JBSDK_VERSION}-x86-${fastdebug_infix:-}b${build_number%%.*}
+  __root_dir=${__bundle_name}-${JBSDK_VERSION}-windows-x86-${fastdebug_infix}b${build_number}
 
   echo Creating $JBR.tar.gz ...
   chmod -R ug+rwx,o+rx ${BASE_DIR}/$__root_dir

make/Bundles.gmk

@@ -278,16 +278,7 @@ ifneq ($(filter product-bundles% legacy-bundles, $(MAKECMDGOALS)), )
       $(SYMBOLS_EXCLUDE_PATTERN), \
       $(ALL_JRE_FILES))
 
-  # On Macosx release builds, when there is a code signing certificate available,
-  # the final bundle layout can be signed.
-  SIGN_BUNDLE := false
-  ifeq ($(call isTargetOs, macosx)+$(DEBUG_LEVEL), true+release)
-    ifneq ($(CODESIGN), )
-      SIGN_BUNDLE := true
-    endif
-  endif
-
-  ifeq ($(SIGN_BUNDLE), true)
+  ifeq ($(MACOSX_CODESIGN_MODE), hardened)
     # Macosx release build and code signing available.
 
     ################################################################################

make/autoconf/basic_tools.m4

@@ -160,25 +160,23 @@ AC_DEFUN([BASIC_CHECK_MAKE_VERSION],
 AC_DEFUN([BASIC_CHECK_MAKE_OUTPUT_SYNC],
 [
   # Check if make supports the output sync option and if so, setup using it.
-  AC_MSG_CHECKING([if make --output-sync is supported])
-  if $MAKE --version -O > /dev/null 2>&1; then
-    OUTPUT_SYNC_SUPPORTED=true
-    AC_MSG_RESULT([yes])
-    AC_MSG_CHECKING([for output-sync value])
-    AC_ARG_WITH([output-sync], [AS_HELP_STRING([--with-output-sync],
-      [set make output sync type if supported by make. @<:@recurse@:>@])],
-      [OUTPUT_SYNC=$with_output_sync])
-    if test "x$OUTPUT_SYNC" = "x"; then
-      OUTPUT_SYNC=none
-    fi
-    AC_MSG_RESULT([$OUTPUT_SYNC])
-    if ! $MAKE --version -O$OUTPUT_SYNC > /dev/null 2>&1; then
-      AC_MSG_ERROR([Make did not the support the value $OUTPUT_SYNC as output sync type.])
-    fi
-  else
-    OUTPUT_SYNC_SUPPORTED=false
-    AC_MSG_RESULT([no])
-  fi
+  UTIL_ARG_WITH(NAME: output-sync, TYPE: literal,
+      VALID_VALUES: [none recurse line target], DEFAULT: recurse,
+      OPTIONAL: true, ENABLED_DEFAULT: true,
+      ENABLED_RESULT: OUTPUT_SYNC_SUPPORTED,
+      CHECKING_MSG: [for make --output-sync value],
+      DESC: [set make --output-sync type if supported by make],
+      CHECK_AVAILABLE:
+      [
+        AC_MSG_CHECKING([if make --output-sync is supported])
+        if ! $MAKE --version -O > /dev/null 2>&1; then
+          AC_MSG_RESULT([no])
+          AVAILABLE=false
+        else
+          AC_MSG_RESULT([yes])
+        fi
+      ]
+  )
   AC_SUBST(OUTPUT_SYNC_SUPPORTED)
   AC_SUBST(OUTPUT_SYNC)
 ])
@@ -378,43 +376,6 @@ AC_DEFUN_ONCE([BASIC_SETUP_COMPLEX_TOOLS],
     UTIL_REQUIRE_PROGS(MIG, mig)
     UTIL_REQUIRE_PROGS(XATTR, xattr)
     UTIL_LOOKUP_PROGS(CODESIGN, codesign)
-
-    if test "x$CODESIGN" != "x"; then
-      # Check for user provided code signing identity.
-      # If no identity was provided, fall back to "openjdk_codesign".
-      AC_ARG_WITH([macosx-codesign-identity], [AS_HELP_STRING([--with-macosx-codesign-identity],
-        [specify the code signing identity])],
-        [MACOSX_CODESIGN_IDENTITY=$with_macosx_codesign_identity],
-        [MACOSX_CODESIGN_IDENTITY=openjdk_codesign]
-      )
-
-      AC_SUBST(MACOSX_CODESIGN_IDENTITY)
-
-      # Verify that the codesign certificate is present
-      AC_MSG_CHECKING([if codesign certificate is present])
-      $RM codesign-testfile
-      $TOUCH codesign-testfile
-      $CODESIGN -s "$MACOSX_CODESIGN_IDENTITY" codesign-testfile 2>&AS_MESSAGE_LOG_FD \
-          >&AS_MESSAGE_LOG_FD || CODESIGN=
-      $RM codesign-testfile
-      if test "x$CODESIGN" = x; then
-        AC_MSG_RESULT([no])
-      else
-        AC_MSG_RESULT([yes])
-        # Verify that the codesign has --option runtime
-        AC_MSG_CHECKING([if codesign has --option runtime])
-        $RM codesign-testfile
-        $TOUCH codesign-testfile
-        $CODESIGN --option runtime -s "$MACOSX_CODESIGN_IDENTITY" codesign-testfile \
-            2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD || CODESIGN=
-        $RM codesign-testfile
-        if test "x$CODESIGN" = x; then
-          AC_MSG_ERROR([codesign does not have --option runtime. macOS 10.13.6 and above is required.])
-        else
-          AC_MSG_RESULT([yes])
-        fi
-      fi
-    fi
     UTIL_REQUIRE_PROGS(SETFILE, SetFile)
   fi
   if ! test "x$OPENJDK_TARGET_OS" = "xwindows"; then

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"`

make/autoconf/compare.sh.in

@@ -40,6 +40,7 @@ export AWK="@AWK@"
 export BASH="@BASH@"
 export CAT="@CAT@"
 export CMP="@CMP@"
+export CODESIGN="@CODESIGN@"
 export CP="@CP@"
 export CUT="@CUT@"
 export DIFF="@DIFF@"

make/autoconf/configure.ac

@@ -252,6 +252,7 @@ JDKOPT_EXCLUDE_TRANSLATIONS
 JDKOPT_ENABLE_DISABLE_MANPAGES
 JDKOPT_ENABLE_DISABLE_CDS_ARCHIVE
 JDKOPT_ENABLE_DISABLE_COMPATIBLE_CDS_ALIGNMENT
+JDKOPT_SETUP_MACOSX_SIGNING
 
 ###############################################################################
 #

make/autoconf/flags-cflags.m4

@@ -470,9 +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
 
   ###############################################################################

make/autoconf/jdk-options.m4

@@ -248,6 +248,31 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_OPTIONS],
   fi
   AC_SUBST(HOTSPOT_OVERRIDE_LIBPATH)
 
+  # Should we build the client for the JAWS screen reader?
+  if test "x$OPENJDK_TARGET_OS" = xwindows; then
+    AC_MSG_CHECKING([if JAWS client support is enabled])
+
+    A11Y_JAWS_ANNOUNCING_ENABLED=true
+    AC_ARG_ENABLE(
+      [jaws-client],
+      [AS_HELP_STRING([--disable-jaws-client], [Set to disable to exclude the client for the JAWS screen reader from the build])],
+      [
+        if test "x$ENABLE_HEADLESS_ONLY" = xtrue; then
+          AC_MSG_WARN([--[enable|disable]-jaws-client[=*] flags are ignored for headless builds])
+        elif test "x$enableval" != xyes; then
+          A11Y_JAWS_ANNOUNCING_ENABLED=false
+        fi
+      ]
+    )
+    if test "x$ENABLE_HEADLESS_ONLY" = xtrue; then
+      A11Y_JAWS_ANNOUNCING_ENABLED=false
+    fi
+
+    AC_MSG_RESULT([$A11Y_JAWS_ANNOUNCING_ENABLED])
+  else
+    A11Y_JAWS_ANNOUNCING_ENABLED=false
+  fi
+  AC_SUBST(A11Y_JAWS_ANNOUNCING_ENABLED)
 ])
 
 ###############################################################################
@@ -766,3 +791,105 @@ AC_DEFUN_ONCE([JDKOPT_SETUP_REPRODUCIBLE_BUILD],
   AC_SUBST(SOURCE_DATE)
   AC_SUBST(ENABLE_REPRODUCIBLE_BUILD)
 ])
+
+################################################################################
+#
+# Setup signing on macOS. This can either be setup to sign with a real identity
+# and enabling the hardened runtime, or it can simply add the debug entitlement
+# com.apple.security.get-task-allow without actually signing any binaries. The
+# latter is needed to be able to debug processes and dump core files on modern
+# versions of macOS. It can also be skipped completely.
+#
+# Check if codesign will run with the given parameters
+# $1: Parameters to run with
+# $2: Checking message
+# Sets CODESIGN_SUCCESS=true/false
+AC_DEFUN([JDKOPT_CHECK_CODESIGN_PARAMS],
+[
+  PARAMS="$1"
+  MESSAGE="$2"
+  CODESIGN_TESTFILE="$CONFIGURESUPPORT_OUTPUTDIR/codesign-testfile"
+  $RM "$CODESIGN_TESTFILE"
+  $TOUCH "$CODESIGN_TESTFILE"
+  CODESIGN_SUCCESS=false
+  $CODESIGN $PARAMS "$CODESIGN_TESTFILE" 2>&AS_MESSAGE_LOG_FD \
+      >&AS_MESSAGE_LOG_FD && CODESIGN_SUCCESS=true
+  $RM "$CODESIGN_TESTFILE"
+  AC_MSG_CHECKING([$MESSAGE])
+  if test "x$CODESIGN_SUCCESS" = "xtrue"; then
+    AC_MSG_RESULT([yes])
+  else
+    AC_MSG_RESULT([no])
+  fi
+])
+
+AC_DEFUN([JDKOPT_CHECK_CODESIGN_HARDENED],
+[
+  JDKOPT_CHECK_CODESIGN_PARAMS([-s "$MACOSX_CODESIGN_IDENTITY" --option runtime],
+      [if codesign with hardened runtime is possible])
+])
+
+AC_DEFUN([JDKOPT_CHECK_CODESIGN_DEBUG],
+[
+  JDKOPT_CHECK_CODESIGN_PARAMS([-s -], [if debug mode codesign is possible])
+])
+
+AC_DEFUN([JDKOPT_SETUP_MACOSX_SIGNING],
+[
+  ENABLE_CODESIGN=false
+  if test "x$OPENJDK_TARGET_OS" = "xmacosx" && test "x$CODESIGN" != "x"; then
+
+    UTIL_ARG_WITH(NAME: macosx-codesign, TYPE: literal, OPTIONAL: true,
+        VALID_VALUES: [hardened debug auto], DEFAULT: auto,
+        ENABLED_DEFAULT: true,
+        CHECKING_MSG: [for macosx code signing mode],
+        DESC: [set the macosx code signing mode (hardened, debug, auto)]
+    )
+
+    MACOSX_CODESIGN_MODE=disabled
+    if test "x$MACOSX_CODESIGN_ENABLED" = "xtrue"; then
+
+      # Check for user provided code signing identity.
+      UTIL_ARG_WITH(NAME: macosx-codesign-identity, TYPE: string,
+          DEFAULT: openjdk_codesign, CHECK_VALUE: UTIL_CHECK_STRING_NON_EMPTY,
+          DESC: [specify the macosx code signing identity],
+          CHECKING_MSG: [for macosx code signing identity]
+      )
+      AC_SUBST(MACOSX_CODESIGN_IDENTITY)
+
+      if test "x$MACOSX_CODESIGN" = "xauto"; then
+        # Only try to default to hardened signing on release builds
+        if test "x$DEBUG_LEVEL" = "xrelease"; then
+          JDKOPT_CHECK_CODESIGN_HARDENED
+          if test "x$CODESIGN_SUCCESS" = "xtrue"; then
+            MACOSX_CODESIGN_MODE=hardened
+          fi
+        fi
+        if test "x$MACOSX_CODESIGN_MODE" = "xdisabled"; then
+          JDKOPT_CHECK_CODESIGN_DEBUG
+          if test "x$CODESIGN_SUCCESS" = "xtrue"; then
+            MACOSX_CODESIGN_MODE=debug
+          fi
+        fi
+        AC_MSG_CHECKING([for macosx code signing mode])
+        AC_MSG_RESULT([$MACOSX_CODESIGN_MODE])
+      elif test "x$MACOSX_CODESIGN" = "xhardened"; then
+        JDKOPT_CHECK_CODESIGN_HARDENED
+        if test "x$CODESIGN_SUCCESS" = "xfalse"; then
+          AC_MSG_ERROR([Signing with hardened runtime is not possible])
+        fi
+        MACOSX_CODESIGN_MODE=hardened
+      elif test "x$MACOSX_CODESIGN" = "xdebug"; then
+        JDKOPT_CHECK_CODESIGN_DEBUG
+        if test "x$CODESIGN_SUCCESS" = "xfalse"; then
+          AC_MSG_ERROR([Signing in debug mode is not possible])
+        fi
+        MACOSX_CODESIGN_MODE=debug
+      else
+        AC_MSG_ERROR([unknown value for --with-macosx-codesign: $MACOSX_CODESIGN])
+      fi
+    fi
+    AC_SUBST(MACOSX_CODESIGN_IDENTITY)
+    AC_SUBST(MACOSX_CODESIGN_MODE)
+  fi
+])

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/lib-nvdacontrollerclient.m4

@@ -0,0 +1,121 @@
+#
+# Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022, JetBrains s.r.o.. 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.
+#
+
+################################################################################
+# Setup nvdacontrollerclient (The library for communication with
+# NVDA - a screen reader for Microsoft Windows)
+################################################################################
+AC_DEFUN_ONCE([LIB_SETUP_NVDACONTROLLERCLIENT], [
+  # To enable NVDA, user specifies neither --with-nvdacontrollerclient or
+  # a pair (--with-nvdacontrollerclient-include, --with-nvdacontrollerclient-lib)
+  AC_ARG_WITH(nvdacontrollerclient, [AS_HELP_STRING([--with-nvdacontrollerclient],
+      [specify prefix directory for the NVDA Controller Client library package
+       (expecting headers and libs under PATH/<target-arch>/)])])
+  AC_ARG_WITH(nvdacontrollerclient-include, [AS_HELP_STRING([--with-nvdacontrollerclient-include],
+      [specify directory for the NVDA Controller Client include files])])
+  AC_ARG_WITH(nvdacontrollerclient-lib, [AS_HELP_STRING([--with-nvdacontrollerclient-lib],
+      [specify directory for the NVDA Controller Client library])])
+
+  NVDACONTROLLERCLIENT_FOUND=no
+  NVDACONTROLLERCLIENT_LIB=
+  NVDACONTROLLERCLIENT_DLL=
+  NVDACONTROLLERCLIENT_CFLAGS=
+
+  if test "x${NEEDS_LIB_NVDACONTROLLERCLIENT}" = "xtrue" ; then
+    if (test "x${with_nvdacontrollerclient_include}"  = "x" && test "x${with_nvdacontrollerclient_lib}" != "x") || \
+       (test "x${with_nvdacontrollerclient_include}" != "x" && test "x${with_nvdacontrollerclient_lib}"  = "x") ; then
+      AC_MSG_ERROR([Must specify both or neither of --with-nvdacontrollerclient-include and --with-nvdacontrollerclient-lib])
+    elif (test "x${with_nvdacontrollerclient}" != "x" && test "x${with_nvdacontrollerclient_include}" != "x") ; then
+      AC_MSG_ERROR([Must specify either --with-nvdacontrollerclient or a pair (--with-nvdacontrollerclient-include, --with-nvdacontrollerclient-lib)])
+    fi
+
+    if (test "x${with_nvdacontrollerclient}" != "x") || \
+       (test "x${with_nvdacontrollerclient_include}" != "x" && test "x${with_nvdacontrollerclient_lib}" != "x") ; then
+
+      AC_MSG_CHECKING([for nvdacontrollerclient])
+
+      if test "x${OPENJDK_TARGET_OS}" != "xwindows" ; then
+        AC_MSG_ERROR([--with-nvdacontrollerclient[-*] flags are applicable only to Windows builds])
+      fi
+
+      if test "x${OPENJDK_TARGET_CPU_ARCH}" = "xaarch64" ; then
+        NVDACONTROLLERCLIENT_BIN_BASENAME="nvdaControllerClient32"
+        NVDACONTROLLERCLIENT_ARCHDIR="arm64"
+      elif test "x${OPENJDK_TARGET_CPU_ARCH}" = "xx86" && test "x${OPENJDK_TARGET_CPU_BITS}" = "x64" ; then
+        NVDACONTROLLERCLIENT_BIN_BASENAME="nvdaControllerClient64"
+        NVDACONTROLLERCLIENT_ARCHDIR="x64"
+      elif test "x${OPENJDK_TARGET_CPU_ARCH}" = "xx86" && test "x${OPENJDK_TARGET_CPU_BITS}" = "x32" ; then
+        NVDACONTROLLERCLIENT_BIN_BASENAME="nvdaControllerClient32"
+        NVDACONTROLLERCLIENT_ARCHDIR="x86"
+      else
+        AC_MSG_ERROR([The nvdacontrollerclient library exists only for x86_32, x86_64, AArch64 architectures])
+      fi
+
+      if test "x${with_nvdacontrollerclient}" != "x" ; then
+        # NVDACONTROLLERCLIENT_ARCHDIR is used only here
+        NVDACONTROLLERCLIENT_INC_PATH="${with_nvdacontrollerclient}/${NVDACONTROLLERCLIENT_ARCHDIR}"
+        NVDACONTROLLERCLIENT_BIN_PATH="${with_nvdacontrollerclient}/${NVDACONTROLLERCLIENT_ARCHDIR}"
+      else
+        NVDACONTROLLERCLIENT_INC_PATH="${with_nvdacontrollerclient_include}"
+        NVDACONTROLLERCLIENT_BIN_PATH="${with_nvdacontrollerclient_lib}"
+      fi
+
+      POTENTIAL_NVDACONTROLLERCLIENT_DLL="${NVDACONTROLLERCLIENT_BIN_PATH}/${NVDACONTROLLERCLIENT_BIN_BASENAME}.dll"
+      POTENTIAL_NVDACONTROLLERCLIENT_LIB="${NVDACONTROLLERCLIENT_BIN_PATH}/${NVDACONTROLLERCLIENT_BIN_BASENAME}.lib"
+      POTENTIAL_NVDACONTROLLERCLIENT_EXP="${NVDACONTROLLERCLIENT_BIN_PATH}/${NVDACONTROLLERCLIENT_BIN_BASENAME}.exp"
+
+      if ! test -s "${POTENTIAL_NVDACONTROLLERCLIENT_DLL}" || \
+         ! test -s "${POTENTIAL_NVDACONTROLLERCLIENT_LIB}" || \
+         ! test -s "${POTENTIAL_NVDACONTROLLERCLIENT_EXP}" ; then
+          AC_MSG_ERROR([Could not find ${NVDACONTROLLERCLIENT_BIN_BASENAME}.dll and/or ${NVDACONTROLLERCLIENT_BIN_BASENAME}.lib and/or ${NVDACONTROLLERCLIENT_BIN_BASENAME}.exp inside ${NVDACONTROLLERCLIENT_BIN_PATH}])
+      fi
+      if ! test -s "${NVDACONTROLLERCLIENT_INC_PATH}/nvdaController.h" ; then
+        AC_MSG_ERROR([Could not find the header file nvdaController.h inside ${NVDACONTROLLERCLIENT_INC_PATH}])
+      fi
+
+      NVDACONTROLLERCLIENT_CFLAGS="-I${NVDACONTROLLERCLIENT_INC_PATH}"
+      NVDACONTROLLERCLIENT_DLL="${POTENTIAL_NVDACONTROLLERCLIENT_DLL}"
+      NVDACONTROLLERCLIENT_LIB="${POTENTIAL_NVDACONTROLLERCLIENT_LIB}"
+      NVDACONTROLLERCLIENT_FOUND=yes
+
+      AC_MSG_RESULT([includes at ${NVDACONTROLLERCLIENT_INC_PATH} ; binaries at ${NVDACONTROLLERCLIENT_BIN_PATH}])
+    fi
+  elif test "x${with_nvdacontrollerclient}" != "x" || \
+       test "x${with_nvdacontrollerclient_include}" != "x" || test "x${with_nvdacontrollerclient_lib}" != "x" ; then
+    AC_MSG_WARN([[nvdacontrollerclient is not used, so --with-nvdacontrollerclient[-*] is ignored]])
+  fi
+
+  if test "x${NVDACONTROLLERCLIENT_FOUND}" = "xyes" ; then
+    A11Y_NVDA_ANNOUNCING_ENABLED=true
+  else
+    A11Y_NVDA_ANNOUNCING_ENABLED=false
+  fi
+
+  AC_SUBST(A11Y_NVDA_ANNOUNCING_ENABLED)
+  AC_SUBST(NVDACONTROLLERCLIENT_CFLAGS)
+  AC_SUBST(NVDACONTROLLERCLIENT_DLL)
+  AC_SUBST(NVDACONTROLLERCLIENT_LIB)
+])

make/autoconf/lib-speechd.m4

@@ -0,0 +1,92 @@
+#
+# Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2022, JetBrains s.r.o.. 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.
+#
+
+################################################################################
+# Setup speechd
+################################################################################
+AC_DEFUN_ONCE([LIB_SETUP_SPEECHD],
+[
+  AC_ARG_WITH(speechd, [AS_HELP_STRING([--with-speechd],
+      [specify prefix directory for the libspeechd package
+      (expecting the headers under PATH/include); required for AccessibleAnnouncer to work])])
+  AC_ARG_WITH(speechd-include, [AS_HELP_STRING([--with-speechd-include],
+      [specify directory for the speechd include files])])
+
+  if test "x$NEEDS_LIB_SPEECHD" = xfalse || test "x${with_speechd}" = xno || \
+      test "x${with_speechd_include}" = xno; then
+    if (test "x${with_speechd}" != x && test "x${with_speechd}" != xno) || \
+        (test "x${with_speechd_include}" != x && test "x${with_speechd_include}" != xno); then
+      AC_MSG_WARN([[speechd not used, so --with-speechd[-*] is ignored]])
+    fi
+    A11Y_SPEECHD_ANNOUNCING_ENABLED=false
+    SPEECHD_CFLAGS=
+    SPEECHD_LIBS=
+  else
+    SPEECHD_FOUND=no
+
+    if test "x${with_speechd}" != x && test "x${with_speechd}" != xyes; then
+      AC_MSG_CHECKING([for speechd header and library])
+      if test -s "${with_speechd}/include/libspeechd.h"; then
+        SPEECHD_CFLAGS="-I${with_speechd}/include"
+        SPEECHD_LIBS="-L${with_speechd}/lib -lspeechd"
+        SPEECHD_FOUND=yes
+        AC_MSG_RESULT([$SPEECHD_FOUND])
+      else
+        AC_MSG_ERROR([Can't find 'include/libspeechd.h' under ${with_speechd} given with the --with-speechd option.])
+      fi
+    fi
+    if test "x${with_speechd_include}" != x; then
+      AC_MSG_CHECKING([for speechd headers])
+      if test -s "${with_speechd_include}/libspeechd.h"; then
+        SPEECHD_CFLAGS="-I${with_speechd_include}"
+        SPEECHD_FOUND=yes
+        AC_MSG_RESULT([$SPEECHD_FOUND])
+      else
+        AC_MSG_ERROR([Can't find 'include/libspeechd.h' under ${with_speechd} given with the --with-speechd-include option.])
+      fi
+    fi
+    if test "x$SPEECHD_FOUND" = xno; then
+      # Are the libspeechd headers installed in the default /usr/include location?
+      AC_CHECK_HEADERS([libspeechd.h],
+          [ SPEECHD_FOUND=yes ],
+          [ SPEECHD_FOUND=no; break ]
+      )
+      if test "x$SPEECHD_FOUND" = xyes; then
+          SPEECHD_CFLAGS=
+          SPEECHD_LIBS="-lspeechd"
+      fi
+    fi
+    if test "x$SPEECHD_FOUND" = xno; then
+      A11Y_SPEECHD_ANNOUNCING_ENABLED=false
+    else
+      A11Y_SPEECHD_ANNOUNCING_ENABLED=true
+    fi
+  fi
+
+  AC_SUBST(A11Y_SPEECHD_ANNOUNCING_ENABLED)
+  AC_SUBST(SPEECHD_CFLAGS)
+  AC_SUBST(SPEECHD_LIBS)
+])

make/autoconf/libraries.m4

@@ -32,6 +32,8 @@ m4_include([lib-freetype.m4])
 m4_include([lib-std.m4])
 m4_include([lib-x11.m4])
 m4_include([lib-fontconfig.m4])
+m4_include([lib-speechd.m4])
+m4_include([lib-nvdacontrollerclient.m4])
 m4_include([lib-tests.m4])
 
 ################################################################################
@@ -43,12 +45,15 @@ AC_DEFUN_ONCE([LIB_DETERMINE_DEPENDENCIES],
   if test "x$OPENJDK_TARGET_OS" = xwindows || test "x$OPENJDK_TARGET_OS" = xmacosx; then
     # No X11 support on windows or macosx
     NEEDS_LIB_X11=false
+    NEEDS_LIB_SPEECHD=false
   elif test "x$ENABLE_HEADLESS_ONLY" = xtrue; then
     # No X11 support needed when building headless only
     NEEDS_LIB_X11=false
+    NEEDS_LIB_SPEECHD=false
   else
     # All other instances need X11
     NEEDS_LIB_X11=true
+    NEEDS_LIB_SPEECHD=true
   fi
 
   # Check if fontconfig is needed
@@ -87,6 +92,13 @@ AC_DEFUN_ONCE([LIB_DETERMINE_DEPENDENCIES],
   else
     NEEDS_LIB_FFI=false
   fi
+
+  # Check if nvdacontrollerclient is needed
+  if test "x$OPENJDK_TARGET_OS" = xwindows && test "x$ENABLE_HEADLESS_ONLY" != xtrue; then
+    NEEDS_LIB_NVDACONTROLLERCLIENT=true
+  else
+    NEEDS_LIB_NVDACONTROLLERCLIENT=false
+  fi
 ])
 
 ################################################################################
@@ -103,6 +115,8 @@ AC_DEFUN_ONCE([LIB_SETUP_LIBRARIES],
   LIB_SETUP_LIBFFI
   LIB_SETUP_BUNDLED_LIBS
   LIB_SETUP_MISC_LIBS
+  LIB_SETUP_SPEECHD
+  LIB_SETUP_NVDACONTROLLERCLIENT
   LIB_TESTS_SETUP_GTEST
 
   BASIC_JDKLIB_LIBS=""

make/autoconf/platform.m4

@@ -212,7 +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

@@ -447,12 +447,27 @@ endif
 X_CFLAGS:=@X_CFLAGS@
 X_LIBS:=@X_LIBS@
 
+# Linux speechd a11y announcer
+A11Y_SPEECHD_ANNOUNCING_ENABLED:=@A11Y_SPEECHD_ANNOUNCING_ENABLED@
+SPEECHD_CFLAGS:=@SPEECHD_CFLAGS@
+SPEECHD_LIBS:=@SPEECHD_LIBS@
+
+# Windows NVDA a11y announcer
+A11Y_NVDA_ANNOUNCING_ENABLED:=@A11Y_NVDA_ANNOUNCING_ENABLED@
+NVDACONTROLLERCLIENT_CFLAGS:=@NVDACONTROLLERCLIENT_CFLAGS@
+NVDACONTROLLERCLIENT_DLL:=@NVDACONTROLLERCLIENT_DLL@
+NVDACONTROLLERCLIENT_LIB:=@NVDACONTROLLERCLIENT_LIB@
+
+# Windows the client for the JAWS screen reader
+A11Y_JAWS_ANNOUNCING_ENABLED:=@A11Y_JAWS_ANNOUNCING_ENABLED@
+
 # The lowest required version of macosx
 MACOSX_VERSION_MIN=@MACOSX_VERSION_MIN@
 # The highest allowed version of macosx
 MACOSX_VERSION_MAX=@MACOSX_VERSION_MAX@
 
-# The macosx code signing identity to use
+# The macosx code signing configuration
+MACOSX_CODESIGN_MODE:=@MACOSX_CODESIGN_MODE@
 MACOSX_CODESIGN_IDENTITY=@MACOSX_CODESIGN_IDENTITY@
 
 # Toolchain type: gcc, clang, xlc, microsoft...

make/autoconf/util.m4

@@ -328,12 +328,12 @@ AC_DEFUN([UTIL_ALIASED_ARG_ENABLE],
 # Creates a command-line option using the --enable-* pattern. Will return a
 # value of 'true' or 'false' in the RESULT variable, depending on whether the
 # option was enabled or not by the user. The option can not be turned on if it
-# is not available, as specified by AVAILABLE and/or AVAILABLE_CHECK.
+# is not available, as specified by AVAILABLE and/or CHECK_AVAILABLE.
 #
 # Arguments:
 #   NAME: The base name of this option (i.e. what follows --enable-). Required.
 #   RESULT: The name of the variable to set to the result. Defaults to
-#     <NAME in uppercase>_RESULT.
+#     <NAME in uppercase>_ENABLED.
 #   DEFAULT: The default value for this option. Can be true, false or auto.
 #     Defaults to true.
 #   AVAILABLE: If true, this option is allowed to be selected. Defaults to true.
@@ -379,7 +379,7 @@ UTIL_DEFUN_NAMED([UTIL_ARG_ENABLE],
   m4_define([ARG_DESC], m4_if(ARG_DESC, , [Enable the ARG_NAME feature], m4_normalize(ARG_DESC)))
 
   # If CHECKING_MSG is not specified, set it to a generic description.
-  m4_define([ARG_CHECKING_MSG], m4_if(ARG_CHECKING_MSG, , [for --enable-ARG_NAME], ARG_CHECKING_MSG))
+  m4_define([ARG_CHECKING_MSG], m4_if(ARG_CHECKING_MSG, , [for --enable-ARG_NAME], m4_normalize(ARG_CHECKING_MSG)))
 
   # If the code blocks are not given, set them to the empty statements to avoid
   # tripping up bash.
@@ -466,3 +466,351 @@ UTIL_DEFUN_NAMED([UTIL_ARG_ENABLE],
   fi
 ])
 
+###############################################################################
+# Helper functions for ARG_WITH, to validate different types of argument
+
+# Dispatcher to call the correct UTIL_CHECK_TYPE_* function depending on the ARG_TYPE
+AC_DEFUN([UTIL_CHECK_TYPE],
+[
+  UTIL_CHECK_TYPE_$1($2)
+])
+
+AC_DEFUN([UTIL_CHECK_TYPE_string],
+[
+  # All strings always passes
+])
+
+AC_DEFUN([UTIL_CHECK_TYPE_integer],
+[
+  # Check that the argument is an integer
+  # Additional [] needed to keep m4 from mangling shell constructs.
+  [ if [[ ! "$1" =~ ^[0-9]+$ ]] ; then ]
+    FAILURE="Not an integer: $1"
+  fi
+])
+
+AC_DEFUN([UTIL_CHECK_TYPE_file],
+[
+  # Check that the argument is an existing file
+  if test ! -f "$1" ; then
+    FAILURE="File $1 does not exist or is not readable"
+  fi
+])
+
+AC_DEFUN([UTIL_CHECK_TYPE_directory],
+[
+  # Check that the argument is an existing directory
+  if test ! -d "$1" ; then
+    FAILURE="Directory $1 does not exist or is not readable"
+  fi
+
+  if test "[x]ARG_CHECK_FOR_FILES" != x; then
+    for file in ARG_CHECK_FOR_FILES; do
+      found_files=$($ECHO $(ls $1/$file 2> /dev/null))
+      if test "x$found_files" = x; then
+        FAILURE="Directory $1 does not contain $file"
+        break
+      elif ! test -e "$found_files"; then
+        FAILURE="Directory $1 contains multiple $file: $found_files"
+        break
+      fi
+    done
+  fi
+])
+
+AC_DEFUN([UTIL_CHECK_TYPE_literal],
+[
+  # Check if it contains a space between non-space characters
+  # Additional [] needed to keep m4 from mangling shell constructs.
+  [ if [[ "$1" =~ [^' ']' '+[^' '] ]] ; then ]
+    FAILURE="Multiple words: $1"
+  fi
+
+  # Check that the selected variants are valid
+  UTIL_GET_NON_MATCHING_VALUES(invalid_value, $1, \
+      ARG_VALID_VALUES)
+  if test "x$invalid_value" != x; then
+    FAILURE="Invalid value: $invalid_value. Valid values are: ARG_VALID_VALUES"
+  fi
+])
+
+AC_DEFUN([UTIL_CHECK_TYPE_multivalue],
+[
+  # We accept either space or comma as separator, but use space internally
+  values=`$ECHO $1 | $SED -e 's/,/ /g'`
+
+  # Check that the selected variants are valid
+  UTIL_GET_NON_MATCHING_VALUES(invalid_value, $values, \
+      ARG_VALID_VALUES)
+  if test "x$invalid_value" != x; then
+    FAILURE="Invalid value(s): $invalid_value. Valid values are: ARG_VALID_VALUES"
+  fi
+
+  # Update to version without comma
+  ARG_RESULT=$($ECHO $values)
+])
+
+AC_DEFUN([UTIL_CHECK_TYPE_features],
+[
+  # We accept either space or comma as separator, but use space internally
+  feature_list=`$ECHO $1 | $SED -e 's/,/ /g'`
+  features_enabled=`$ECHO $feature_list | \
+    $AWK '{ for (i=1; i<=NF; i++) if (!match($i, /^-.*/)) printf("%s ", $i) }'`
+  features_disabled=`$ECHO $feature_list | \
+    $AWK '{ for (i=1; i<=NF; i++) if (match($i, /^-.*/)) printf("%s ", substr($i, 2))}'`
+
+  # Check that the selected features are valid
+  UTIL_GET_NON_MATCHING_VALUES(invalid_features, $features_enabled \
+        $features_disabled, ARG_VALID_VALUES)
+  if test "x$invalid_features" != x; then
+    FAILURE="Invalid feature(s): $invalid_features. Valid values are: ARG_VALID_VALUES"
+  fi
+
+  # Update to version without comma
+  ARG_RESULT=$($ECHO $feature_list)
+])
+
+###############################################################################
+# Creates a command-line option using the --with-* pattern. Will return a
+# string in the RESULT variable with the option provided by the user, or the
+# empty string if the --with-* option was not given. The option can not be given
+# if it is not available, as specified by AVAILABLE and/or CHECK_AVAILABLE.
+#
+# Arguments:
+#   NAME: The base name of this option (i.e. what follows --with-). Required.
+#   TYPE: The type of the value. Can be one of "string", "integer", "file",
+#     "directory", "literal", "multivalue" or "features". Required.
+#   DEFAULT: The default value for this option. Can be any valid string.
+#     Required.
+#   OPTIONAL: If this feature can be disabled. Defaults to false. If true,
+#     the feature can be disabled using --without-FOO, --with-FOO=no, or
+#     --with-FOO=. Check the ENABLED_RESULT variable for the enabled/disabled
+#     state.
+#   RESULT: The name of the variable to set to the result. Defaults to
+#     <NAME in uppercase>. Set to empty if ENABLED_RESULT is false.
+#   ENABLED_DEFAULT: If the value is enabled by default. Defaults to false. Only
+#     relevant if OPTIONAL is true.
+#   ENABLED_RESULT: The name of the variable to set to the enabled/disabled
+#     result state. Defaults to <NAME in uppercase>_ENABLED.
+#   AVAILABLE: If true, this option is allowed to be selected. Defaults to true.
+#   DESC: A description of this option. Defaults to a generic and unhelpful
+#     string.
+#   DEFAULT_DESC: A message describing the default value, for the help. Defaults
+#     to the literal value of DEFAULT, or "<none>" if DEFAULT is empty.
+#   CHECKING_MSG: The message to present to user when checking this option.
+#     Defaults to a generic message.
+#   CHECK_AVAILABLE: An optional code block to execute to determine if the
+#     option should be available. Must set AVAILABLE to 'false' if not.
+#   VALID_VALUES: A list of literals that are the allowed values. Only valid if
+#     TYPE is "literal", "multivalue" or "features".
+#   CHECK_VALUE: An optional code block to execute to determine if the value
+#     is correct. Must set FAILURE to a non-empty string if not. This string
+#     will be displayed. The value is given in $RESULT.
+#   CHECK_FOR_FILES: A list of files to verify the presence for. Only valid if
+#     TYPE is "directory". Paths are relative the directory given as value.
+#     Wildcards are accepted. Exactly one matching file must be found, for each
+#     listed file, or FAILURE is set.
+#   IF_AUTO: An optional code block to execute if the value is "auto", either by
+#     default or given by the command line. Must set RESULT to the calculated
+#     value.
+#   IF_GIVEN:  An optional code block to execute if the option was given on the
+#     command line (regardless of the value).
+#   IF_NOT_GIVEN:  An optional code block to execute if the option was not given
+#     on the command line (regardless of the value).
+#
+UTIL_DEFUN_NAMED([UTIL_ARG_WITH],
+    [*NAME *TYPE *DEFAULT OPTIONAL RESULT ENABLED_DEFAULT ENABLED_RESULT
+    AVAILABLE DESC DEFAULT_DESC CHECKING_MSG CHECK_AVAILABLE VALID_VALUES
+    CHECK_VALUE CHECK_FOR_FILES IF_AUTO IF_GIVEN IF_NOT_GIVEN], [$@],
+[
+  ##########################
+  # Part 1: Set up m4 macros
+  ##########################
+
+  # If ENABLED_DEFAULT is not specified, set it to 'false'.
+  m4_define([ARG_ENABLED_DEFAULT], m4_if(ARG_ENABLED_DEFAULT, , false, ARG_ENABLED_DEFAULT))
+
+  # If AVAILABLE is not specified, set it to 'true'.
+  m4_define([ARG_AVAILABLE], m4_if(ARG_AVAILABLE, , true, ARG_AVAILABLE))
+
+  # If OPTIONAL is not specified, set it to 'false'.
+  m4_define([ARG_OPTIONAL], m4_if(ARG_OPTIONAL, , false, ARG_OPTIONAL))
+
+  # If DEFAULT_DESC is not specified, calculate it from DEFAULT.
+  m4_define([ARG_DEFAULT_DESC], m4_if(ARG_DEFAULT_DESC, , m4_if(ARG_DEFAULT, , <none>, ARG_DEFAULT), ARG_DEFAULT_DESC))
+
+  # If RESULT is not specified, set it to 'ARG_NAME'.
+  m4_define([ARG_RESULT], m4_if(ARG_RESULT, , m4_translit(ARG_NAME, [a-z-], [A-Z_]), ARG_RESULT))
+
+  # If ENABLED_RESULT is not specified, set it to 'ARG_NAME[_ENABLED]'.
+  m4_define([ARG_ENABLED_RESULT], m4_if(ARG_ENABLED_RESULT, , m4_translit(ARG_NAME, [a-z-], [A-Z_])[_ENABLED], ARG_ENABLED_RESULT))
+
+  # Construct shell variable names for the option
+  m4_define(ARG_OPTION, [with_]m4_translit(ARG_NAME, [-], [_]))
+  m4_define(ARG_GIVEN, m4_translit(ARG_NAME, [a-z-], [A-Z_])[_GIVEN])
+
+  # If DESC is not specified, set it to a generic description.
+  m4_define([ARG_DESC], m4_if(ARG_DESC, , [Give a value for the ARG_NAME feature], m4_normalize(ARG_DESC)))
+
+  # If CHECKING_MSG is not specified, set it to a generic description.
+  m4_define([ARG_CHECKING_MSG], m4_if(ARG_CHECKING_MSG, , [for --with-ARG_NAME], m4_normalize(ARG_CHECKING_MSG)))
+
+  m4_define([ARG_HAS_AUTO_BLOCK], m4_if(ARG_IF_AUTO, , false, true))
+
+  # If the code blocks are not given, set them to the empty statements to avoid
+  # tripping up bash.
+  m4_define([ARG_CHECK_AVAILABLE], m4_if(ARG_CHECK_AVAILABLE, , :, ARG_CHECK_AVAILABLE))
+  m4_define([ARG_CHECK_VALUE], m4_if(ARG_CHECK_VALUE, , :, ARG_CHECK_VALUE))
+  m4_define([ARG_CHECK_FOR_FILES], m4_if(ARG_CHECK_FOR_FILES, , :, ARG_CHECK_FOR_FILES))
+  m4_define([ARG_IF_AUTO], m4_if(ARG_IF_AUTO, , :, ARG_IF_AUTO))
+  m4_define([ARG_IF_GIVEN], m4_if(ARG_IF_GIVEN, , :, ARG_IF_GIVEN))
+  m4_define([ARG_IF_NOT_GIVEN], m4_if(ARG_IF_NOT_GIVEN, , :, ARG_IF_NOT_GIVEN))
+
+  ##########################
+  # Part 2: Set up autoconf shell code
+  ##########################
+
+  # Check that OPTIONAL has a valid value
+  if test "[x]ARG_OPTIONAL" != xtrue && test "[x]ARG_OPTIONAL" != xfalse ; then
+    AC_MSG_ERROR([Internal error: Argument OPTIONAL to [UTIL_ARG_WITH] can only be true or false, was: 'ARG_OPTIONAL'])
+  fi
+
+  # Check that ENABLED_DEFAULT has a valid value
+  if test "[x]ARG_ENABLED_DEFAULT" != xtrue && test "[x]ARG_ENABLED_DEFAULT" != xfalse ; then
+    AC_MSG_ERROR([Internal error: Argument ENABLED_DEFAULT to [UTIL_ARG_WITH] can only be true or false, was: 'ARG_ENABLED_DEFAULT'])
+  fi
+
+  # Check that AVAILABLE has a valid value
+  if test "[x]ARG_AVAILABLE" != xtrue && test "[x]ARG_AVAILABLE" != xfalse; then
+    AC_MSG_ERROR([Internal error: Argument AVAILABLE to [UTIL_ARG_WITH] can only be true or false, was: 'ARG_AVAILABLE'])
+  fi
+
+  # Check that TYPE has a valid value
+  # Need to assign since we can't expand ARG TYPE inside the m4 quoted if statement
+  TEST_TYPE="ARG_TYPE"
+  # Additional [] needed to keep m4 from mangling shell constructs.
+  [ if [[ ! "$TEST_TYPE" =~ ^(string|integer|file|directory|literal|multivalue|features)$ ]] ; then ]
+    AC_MSG_ERROR([Internal error: Argument TYPE to [UTIL_ARG_WITH] must be a valid type, was: 'ARG_TYPE'])
+  fi
+
+  AC_ARG_WITH(ARG_NAME, AS_HELP_STRING([--with-]ARG_NAME,
+      [ARG_DESC [ARG_DEFAULT_DESC]]), [ARG_GIVEN=true], [ARG_GIVEN=false])
+
+  # Check if the option is available
+  AVAILABLE=ARG_AVAILABLE
+  # Run the available check block (if any), which can overwrite AVAILABLE.
+  ARG_CHECK_AVAILABLE
+
+  # Check if the option should be turned on
+  echo check msg:ARG_CHECKING_MSG:
+  AC_MSG_CHECKING(ARG_CHECKING_MSG)
+
+  if test x$AVAILABLE = xfalse; then
+    ARG_RESULT="$ARG_OPTION"
+    ARG_ENABLED_RESULT=false
+    REASON="not available"
+  else
+    if test x$ARG_GIVEN = xfalse; then
+      ARG_RESULT="ARG_DEFAULT"
+      if test "[x]ARG_OPTIONAL" = xtrue; then
+        ARG_ENABLED_RESULT=ARG_ENABLED_DEFAULT
+      else
+        ARG_ENABLED_RESULT=true
+      fi
+      REASON="default"
+
+    else # ARG_GIVEN is true
+      # Special treatment of "yes" and "no" for "--with-ARG" and "--without-ARG"
+      if test "x$ARG_OPTION" = xyes || test "x$ARG_OPTION" = xno || test "x$ARG_OPTION" = x ; then
+        if test "[x]ARG_OPTIONAL" = xfalse; then
+          if test "x$ARG_OPTION" = x; then
+            # If not optional, the empty string is a valid value
+            ARG_RESULT=""
+            ARG_ENABLED_RESULT=true
+            REASON="from command line"
+          else
+            AC_MSG_RESULT([invalid])
+            AC_MSG_ERROR([Option [--with-]ARG_NAME must have a specified value])
+          fi
+        else
+          if test "x$ARG_OPTION" = xyes; then
+            ARG_RESULT="ARG_DEFAULT"
+            ARG_ENABLED_RESULT=true
+            REASON="default as enabled from command line"
+          else
+            # For optional values, both --without-FOO and --with-FOO= disables
+            ARG_RESULT=""
+            ARG_ENABLED_RESULT=false
+            REASON="from command line"
+          fi
+        fi
+      else
+        # The most common case -- the user gives a value for the option.
+        ARG_RESULT="$ARG_OPTION"
+        ARG_ENABLED_RESULT=true
+        REASON="from command line"
+      fi
+    fi
+  fi
+
+  if test "x$ARG_ENABLED_RESULT" = xfalse; then
+    if test "x$REASON" = "xnot available"; then
+      AC_MSG_RESULT([<invalid>, $REASON])
+      if test "x$ARG_RESULT" != "x" && test "x$ARG_RESULT" != "xno" ; then
+        AC_MSG_WARN([Option [--with-]ARG_NAME is not available for this configuration])
+      fi
+    else
+      AC_MSG_RESULT([<disabled>, $REASON])
+    fi
+    ARG_RESULT=""
+  else
+    if test [x]ARG_HAS_AUTO_BLOCK = xtrue && test "x$ARG_RESULT" = xauto; then
+      # Execute "auto" payload
+      ARG_IF_AUTO
+
+      ARG_RESULT="$RESULT"
+      REASON="$REASON (calculated from 'auto')"
+    fi
+
+    if test "x$ARG_RESULT" = x; then
+      AC_MSG_RESULT([<none>, $REASON])
+    else
+      AC_MSG_RESULT([$ARG_RESULT, $REASON])
+    fi
+  fi
+
+  # Verify value
+  # First use our dispatcher to verify that type requirements are satisfied
+  UTIL_CHECK_TYPE(ARG_TYPE, $ARG_RESULT)
+
+  if test "x$FAILURE" = x; then
+    # Execute custom verification payload, if present
+    RESULT="$ARG_RESULT"
+
+    ARG_CHECK_VALUE
+
+    ARG_RESULT="$RESULT"
+  fi
+
+  if test "x$FAILURE" != x; then
+    AC_MSG_NOTICE([Invalid value for [--with-]ARG_NAME: "$ARG_RESULT"])
+    AC_MSG_NOTICE([$FAILURE])
+    AC_MSG_ERROR([Cannot continue])
+  fi
+
+  # Execute result payloads, if present
+  if test x$ARG_GIVEN = xtrue; then
+    ARG_IF_GIVEN
+  else
+    ARG_IF_NOT_GIVEN
+  fi
+])
+
+###############################################################################
+# Helper functions for CHECK_VALUE in ARG_WITH.
+AC_DEFUN([UTIL_CHECK_STRING_NON_EMPTY],
+[
+  if test "x$RESULT" = "x"; then
+    FAILURE="Value cannot be empty"
+  fi
+])

make/common/NativeCompilation.gmk

@@ -267,10 +267,15 @@ endif
 # specialized file is found, returns the default file.
 # $1 Executable to find entitlements file for.
 ENTITLEMENTS_DIR := $(TOPDIR)/make/data/macosxsigning
-DEFAULT_ENTITLEMENTS_FILE := $(ENTITLEMENTS_DIR)/default.plist
+ifeq ($(MACOSX_CODESIGN_MODE), debug)
+  CODESIGN_PLIST_SUFFIX := -debug
+else
+  CODESIGN_PLIST_SUFFIX :=
+endif
+DEFAULT_ENTITLEMENTS_FILE := $(ENTITLEMENTS_DIR)/default$(CODESIGN_PLIST_SUFFIX).plist
 
 GetEntitlementsFile = \
-    $(foreach f, $(ENTITLEMENTS_DIR)/$(strip $(notdir $1)).plist, \
+    $(foreach f, $(ENTITLEMENTS_DIR)/$(strip $(notdir $1))$(CODESIGN_PLIST_SUFFIX).plist, \
       $(if $(wildcard $f), $f, $(DEFAULT_ENTITLEMENTS_FILE)) \
     )
 
@@ -1206,11 +1211,16 @@ define SetupNativeCompilationBody
 		    $$($1_MT) -nologo -manifest $$($1_MANIFEST) -identity:"$$($1_NAME).exe, version=$$($1_MANIFEST_VERSION)" -outputresource:$$@;#1
                   endif
                 endif
-                # This only works if the openjdk_codesign identity is present on the system. Let
-                # silently fail otherwise.
-                ifneq ($(CODESIGN), )
+                # On macosx, optionally run codesign on every binary.
+                # Remove signature explicitly first to avoid warnings if the linker
+                # added a default adhoc signature.
+                ifeq ($(MACOSX_CODESIGN_MODE), hardened)
+		  $(CODESIGN) --remove-signature $$@
 		  $(CODESIGN) -f -s "$(MACOSX_CODESIGN_IDENTITY)" --timestamp --options runtime \
 		      --entitlements $$(call GetEntitlementsFile, $$@) $$@
+                else ifeq ($(MACOSX_CODESIGN_MODE), debug)
+		  $(CODESIGN) --remove-signature $$@
+		  $(CODESIGN) -f -s - --entitlements $$(call GetEntitlementsFile, $$@) $$@
                 endif
   endif
 

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

@@ -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=17
-JTREG_VERSION=6
-JTREG_BUILD=1
 GTEST_VERSION=1.8.1
+JTREG_VERSION=6.1+2
 
-LINUX_X64_BOOT_JDK_FILENAME=openjdk-17.0.2_linux-x64_bin.tar.gz
+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-17.0.2_windows-x64_bin.zip
+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-17.0.2_macos-x64_bin.tar.gz
+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/jib-profiles.js

@@ -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-aarch64", "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
@@ -28,12 +28,12 @@
 
 DEFAULT_VERSION_FEATURE=17
 DEFAULT_VERSION_INTERIM=0
-DEFAULT_VERSION_UPDATE=4
+DEFAULT_VERSION_UPDATE=6
 DEFAULT_VERSION_PATCH=0
 DEFAULT_VERSION_EXTRA1=0
 DEFAULT_VERSION_EXTRA2=0
 DEFAULT_VERSION_EXTRA3=0
-DEFAULT_VERSION_DATE=2022-07-19
+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

make/data/autoheaders/assemblyprefix.h

@@ -4,7 +4,9 @@
 #
 # This code is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License version 2 only, as
-# published by the Free Software Foundation.
+# published by the Free Software Foundation.  Oracle designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
 #
 # This code is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

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

@@ -279,6 +279,7 @@ For terms of use, see http://www.unicode.org/copyright.html
             <type name="mwblz" description="Blantyre, Malawi" alias="Africa/Blantyre"/>
             <type name="mxchi" description="Chihuahua, Mexico" alias="America/Chihuahua"/>
             <type name="mxcun" description="Cancún, Mexico" alias="America/Cancun"/>
+            <type name="mxcjs" description="Ciudad Juárez, Mexico" alias="America/Ciudad_Juarez"/>
             <type name="mxhmo" description="Hermosillo, Mexico" alias="America/Hermosillo"/>
             <type name="mxmam" description="Matamoros, Mexico" alias="America/Matamoros"/>
             <type name="mxmex" description="Mexico City, Mexico" alias="America/Mexico_City Mexico/General"/>
@@ -393,7 +394,7 @@ 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/cldr/common/main/es_419.xml

@@ -1019,11 +1019,8 @@ Warnings: All cp values have U+FE0F characters removed. See /annotationsDerived/
 		<decimalFormats numberSystem="latn">
 			<decimalFormatLength type="long">
 				<decimalFormat>
-					<pattern type="1000000000000" count="one">0 billón</pattern>
 					<pattern type="1000000000000" count="other">0 billón</pattern>
-					<pattern type="10000000000000" count="one">00 billones</pattern>
 					<pattern type="10000000000000" count="other">00 billones</pattern>
-					<pattern type="100000000000000" count="one">000 billones</pattern>
 					<pattern type="100000000000000" count="other">000 billones</pattern>
 				</decimalFormat>
 			</decimalFormatLength>

make/data/cldr/common/main/es_MX.xml

@@ -713,11 +713,8 @@ CLDR data files are interpreted according to the LDML specification (http://unic
 		<decimalFormats numberSystem="latn">
 			<decimalFormatLength type="long">
 				<decimalFormat>
-					<pattern type="1000000000000" count="one">0 billón</pattern>
 					<pattern type="1000000000000" count="other">0 billones</pattern>
-					<pattern type="10000000000000" count="one">00 billones</pattern>
 					<pattern type="10000000000000" count="other">00 billones</pattern>
-					<pattern type="100000000000000" count="one">000 billones</pattern>
 					<pattern type="100000000000000" count="other">000 billones</pattern>
 				</decimalFormat>
 			</decimalFormatLength>

make/data/cldr/common/main/root.xml

@@ -2932,6 +2932,18 @@ for derived annotations.
 			<zone type="Asia/Saigon">
 				<exemplarCity>Ho Chi Minh</exemplarCity>
 			</zone>
+			<zone type="America/Bahia_Banderas">
+				<exemplarCity>Bahía de Banderas</exemplarCity>
+			</zone>
+			<zone type="America/Cancun">
+				<exemplarCity>Cancún</exemplarCity>
+			</zone>
+			<zone type="America/Ciudad_Juarez">
+				<exemplarCity>Ciudad Juárez</exemplarCity>
+			</zone>
+			<zone type="America/Merida">
+				<exemplarCity>Mérida</exemplarCity>
+			</zone>
 		</timeZoneNames>
 	</dates>
 	<numbers>

make/data/cldr/common/supplemental/metaZones.xml

@@ -331,7 +331,14 @@ For terms of use, see http://www.unicode.org/copyright.html
 			</timezone>
 			<timezone type="America/Chihuahua">
 				<usesMetazone to="1998-04-05 09:00" mzone="America_Central"/>
-				<usesMetazone from="1998-04-05 09:00" mzone="Mexico_Pacific"/>
+				<usesMetazone to="2022-10-30 08:00" from="1998-04-05 09:00" mzone="Mexico_Pacific"/>
+				<usesMetazone from="2022-10-30 08:00" mzone="America_Central"/>
+			</timezone>
+			<timezone type="America/Ciudad_Juarez">
+				<usesMetazone to="1998-04-05 09:00" mzone="America_Central"/>
+				<usesMetazone to="2022-10-30 08:00" from="1998-04-05 09:00" mzone="Mexico_Pacific"/>
+				<usesMetazone to="2022-11-30 06:00" from="2022-10-30 08:00" mzone="America_Central"/>
+				<usesMetazone from="2022-11-30 06:00" mzone="America_Mountain"/>
 			</timezone>
 			<timezone type="America/Coral_Harbour">
 				<usesMetazone mzone="America_Eastern"/>
@@ -618,14 +625,14 @@ For terms of use, see http://www.unicode.org/copyright.html
 			</timezone>
 			<timezone type="America/Ojinaga">
 				<usesMetazone to="1998-04-05 09:00" mzone="America_Central"/>
-				<usesMetazone from="1998-04-05 09:00" mzone="America_Mountain"/>
+				<usesMetazone to="2022-10-30 08:00" from="1998-04-05 09:00" mzone="America_Mountain"/>
+				<usesMetazone from="2022-10-30 08:00" mzone="America_Central"/>
 			</timezone>
 			<timezone type="America/Panama">
 				<usesMetazone mzone="America_Eastern"/>
 			</timezone>
 			<timezone type="America/Pangnirtung">
-				<usesMetazone to="1995-04-02 06:00" mzone="Atlantic"/>
-				<usesMetazone to="1999-10-31 06:00" from="1995-04-02 06:00" mzone="America_Eastern"/>
+				<usesMetazone to="1999-10-31 06:00" mzone="America_Eastern"/>
 				<usesMetazone to="2000-10-29 07:00" from="1999-10-31 06:00" mzone="America_Central"/>
 				<usesMetazone from="2000-10-29 07:00" mzone="America_Eastern"/>
 			</timezone>

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=170
+dataVersion=174
 
 # List of all valid ISO 4217 currency codes.
 # To ensure compatibility, do not remove codes.
@@ -51,7 +51,7 @@ 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-VED926-VEF937-VES928-VND704-VUV548-WST882-XAF950-XAG961-XAU959-XBA955-\
@@ -189,7 +189,7 @@ CR=CRC
 # COTE D'IVOIRE
 CI=XOF
 # CROATIA
-HR=HRK
+HR=HRK;2022-12-31-23-00-00;EUR
 # CUBA
 CU=CUP
 # Cura\u00e7ao
@@ -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/macosxsigning/default-debug.plist

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.cs.allow-jit</key>
+    <true/>
+    <key>com.apple.security.cs.allow-unsigned-executable-memory</key>
+    <true/>
+    <key>com.apple.security.cs.disable-library-validation</key>
+    <true/>
+    <key>com.apple.security.cs.allow-dyld-environment-variables</key>
+    <true/>
+    <key>com.apple.security.cs.debugger</key>
+    <true/>
+    <key>com.apple.security.get-task-allow</key>
+    <true/>
+</dict>
+</plist>

make/data/macosxsigning/java-debug.plist

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>com.apple.security.cs.allow-jit</key>
+    <true/>
+    <key>com.apple.security.cs.allow-unsigned-executable-memory</key>
+    <true/>
+    <key>com.apple.security.cs.disable-library-validation</key>
+    <true/>
+    <key>com.apple.security.cs.allow-dyld-environment-variables</key>
+    <true/>
+    <key>com.apple.security.cs.debugger</key>
+    <true/>
+    <key>com.apple.security.device.audio-input</key>
+    <true/>
+    <key>com.apple.security.get-task-allow</key>
+    <true/>
+</dict>
+</plist>

make/data/tzdata/VERSION

@@ -21,4 +21,4 @@
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
-tzdata2022a
+tzdata2022g

make/data/tzdata/africa

@@ -120,22 +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):
@@ -150,9 +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
@@ -160,39 +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/Accra	# Ghana
-Link Africa/Abidjan Africa/Bamako	# Mali
-Link Africa/Abidjan Africa/Banjul	# The 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.
 
@@ -377,36 +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.
-
-# The Gambia
-# Ghana
-# Guinea
-# See Africa/Abidjan.
-
 # Guinea-Bissau
 #
 # From Paul Eggert (2018-02-16):
@@ -419,7 +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):
 #
@@ -430,7 +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,
@@ -462,6 +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
@@ -469,18 +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
 #
@@ -561,16 +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):
@@ -664,8 +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 Africa/Ceuta for Spanish Morocco.
@@ -1158,7 +1103,14 @@ 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
@@ -1168,14 +1120,6 @@ 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
 
@@ -1254,9 +1198,16 @@ 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):
@@ -1322,44 +1273,6 @@ 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
-#
-# 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
 
@@ -1379,48 +1292,19 @@ 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	-
@@ -1428,8 +1312,6 @@ 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
@@ -1478,12 +1360,6 @@ Zone	Africa/Juba	2:06:28 -	LMT	1931
 			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):
@@ -1581,10 +1457,3 @@ Rule	Tunisia	2006	2008	-	Oct	lastSun	 2:00s	0	-
 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

@@ -180,9 +180,7 @@ 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 - see Pacific/Port_Moresby.
@@ -265,31 +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
@@ -355,4 +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

@@ -172,9 +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
@@ -277,13 +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.
 
@@ -300,10 +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):
@@ -367,12 +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
@@ -568,7 +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
@@ -687,18 +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
@@ -882,7 +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
@@ -1197,10 +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
@@ -1357,7 +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
@@ -1393,10 +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
@@ -1428,6 +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:
@@ -1462,65 +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:
@@ -1554,10 +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	-
@@ -1588,85 +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
 
@@ -2262,6 +2239,17 @@ Zone	Asia/Tokyo	9:18:59	-	LMT	1887 Dec 31 15:00u
 # 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	-
@@ -2293,11 +2281,12 @@ 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	2021	-	Mar	lastThu	24:00	1:00	S
-Rule	Jordan	2014	max	-	Oct	lastFri	0:00s	0	-
-Rule	Jordan	2022	max	-	Feb	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
@@ -2488,9 +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]
 #
@@ -2723,14 +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
@@ -2762,25 +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)
-# https://web.archive.org/web/20190822231045/http://www.math.nus.edu.sg/~mathelmr/teaching/timezone.html
-# This agrees with Singapore since 1905-06-01.
-# 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
@@ -2959,9 +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):
@@ -3416,10 +3384,6 @@ 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 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 P Chan (2021-10-18):
 # http://wafa.ps/Pages/Details/34701
@@ -3436,6 +3400,18 @@ Zone	Asia/Karachi	4:28:12 -	LMT	1907
 # 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
 Rule EgyptAsia	1957	1958	-	Oct	 1	0:00	0	-
@@ -3466,14 +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	2021	-	Mar	Sat>=24	0:00	1:00	S
+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	max	-	Oct	Fri>=23	1:00	0	-
-Rule Palestine	2022	max	-	Mar	Sun>=25	0:00	1:00	S
+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
@@ -3562,14 +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
@@ -3614,9 +3596,6 @@ 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 Antarctica/Syowa
-Link Asia/Riyadh Asia/Aden	# Yemen
-Link Asia/Riyadh Asia/Kuwait
 
 # Singapore
 # taken from Mok Ly Yng (2003-10-30)
@@ -3629,7 +3608,7 @@ Zone	Asia/Singapore	6:55:25 -	LMT	1901 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
+			7:30	-	+0730	1981 Dec 31 16:00u
 			8:00	-	+08
 
 # Spratly Is
@@ -3845,19 +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.
@@ -3865,16 +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.
@@ -3885,11 +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.
@@ -3901,14 +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
@@ -3920,7 +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:
@@ -3932,8 +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.
 #
@@ -3960,7 +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
@@ -3981,7 +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.
@@ -422,8 +409,14 @@ Zone	Indian/Cocos	6:27:40	-	LMT	1900
 # concerned shifting arrival and departure times, which may look like a simple
 # thing but requires some significant logistical adjustments domestically and
 # internationally."
-# Assume for now that DST will resume with the recent pre-2020 rules for the
-# 2022/2023 season.
+
+# 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	-
@@ -438,8 +431,6 @@ Rule	Fiji	2014	2018	-	Nov	Sun>=1	2:00	1:00	-
 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	2022	max	-	Nov	Sun>=8	2:00	1:00	-
-Rule	Fiji	2023	max	-	Jan	Sun>=12	3:00	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Pacific/Fiji	11:55:44 -	LMT	1915 Oct 26 # Suva
 			12:00	Fiji	+12/+13
@@ -455,7 +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
@@ -495,12 +488,20 @@ 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
+
+# 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
@@ -510,19 +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
@@ -532,22 +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
@@ -582,6 +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
@@ -617,12 +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
@@ -681,7 +659,7 @@ Zone Pacific/Rarotonga	13:20:56 -	LMT	1899 Dec 26 # Avarua
 
 
 # Niue
-# See Pacific/Raratonga comments for 1952 transition.
+# See Pacific/Rarotonga comments for 1952 transition.
 #
 # From Tim Parenti (2021-09-13):
 # Consecutive contemporaneous editions of The Air Almanac listed -11:20 for
@@ -716,7 +694,6 @@ Zone Pacific/Palau	-15:02:04 -	LMT	1844 Dec 31	# Koror
 Zone Pacific/Port_Moresby 9:48:40 -	LMT	1880
 			9:48:32	-	PMMT	1895 # Port Moresby Mean Time
 			10:00	-	+10
-Link Pacific/Port_Moresby Antarctica/DumontDUrville
 #
 # From Paul Eggert (2014-10-13):
 # Base the Bougainville entry on the Arawa-Kieta region, which appears to have
@@ -749,10 +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)
 
@@ -883,11 +860,6 @@ Zone Pacific/Tongatapu	12:19:12 -	LMT	1945 Sep 10
 			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
 
@@ -938,17 +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
 
@@ -985,11 +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
@@ -1306,6 +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
 
@@ -1849,16 +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"
@@ -1905,13 +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)
@@ -2242,7 +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.
 #
@@ -2250,26 +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

@@ -27,54 +27,33 @@
 # 2009-05-17 by Arthur David Olson.
 
 # This file provides links from old or merged timezone names to current ones.
-# Many names changed in late 1993.  Several of these names are
+# 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/Panama		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/Puerto_Rico	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
@@ -84,7 +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
@@ -104,17 +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
@@ -126,14 +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/Kanton		Pacific/Enderbury
-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
@@ -157,3 +149,193 @@ 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/Iqaluit		America/Pangnirtung
+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/europe

@@ -326,8 +326,7 @@
 # UT-00:25:22 and cites the International Telegraph Bureau.  As it is
 # not clear that there was any practical significance to the change
 # from UT-00:25:22 to UT-00:25:21.1 in civil timekeeping, omit this
-# transition for now and just use the latter value, omitting its
-# fraction since our format cannot represent fractions.
+# transition for now and just use the latter value.
 
 # "Countess Markievicz ... claimed that the [1916] abolition of Dublin Mean Time
 # was among various actions undertaken by the 'English' government that
@@ -523,14 +522,11 @@ Rule	GB-Eire 1990	1995	-	Oct	Sun>=22	1:00u	0	GMT
 # Use Europe/London for Jersey, Guernsey, and the Isle of Man.
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/London	-0:01:15 -	LMT	1847 Dec  1  0:00s
+Zone	Europe/London	-0:01:15 -	LMT	1847 Dec  1
 			 0:00	GB-Eire	%s	1968 Oct 27
 			 1:00	-	BST	1971 Oct 31  2:00u
 			 0:00	GB-Eire	%s	1996
 			 0:00	EU	GMT/BST
-Link	Europe/London	Europe/Jersey
-Link	Europe/London	Europe/Guernsey
-Link	Europe/London	Europe/Isle_of_Man
 
 # From Paul Eggert (2018-02-15):
 # In January 2018 we discovered that the negative SAVE values in the
@@ -561,7 +557,8 @@ Rule	Eire	1990	1995	-	Oct	Sun>=22	 1:00u	-1:00	-
 Rule	Eire	1996	max	-	Oct	lastSun	 1:00u	-1:00	-
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Dublin	-0:25:00 -	LMT	1880 Aug  2
+		#STDOFF	-0:25:21.1
+Zone	Europe/Dublin	-0:25:21 -	LMT	1880 Aug  2
 			-0:25:21 -	DMT	1916 May 21  2:00s
 			-0:25:21 1:00	IST	1916 Oct  1  2:00s
 			 0:00	GB-Eire	%s	1921 Dec  6 # independence
@@ -902,6 +899,8 @@ Zone	Europe/Minsk	1:50:16 -	LMT	1880
 			3:00	-	+03
 
 # Belgium
+# Luxembourg
+# Netherlands
 #
 # From Michael Deckers (2019-08-25):
 # The exposition in the web page
@@ -985,9 +984,6 @@ Zone	Europe/Brussels	0:17:30 -	LMT	1880
 			1:00	Belgium	CE%sT	1977
 			1:00	EU	CE%sT
 
-# Bosnia and Herzegovina
-# See Europe/Belgrade.
-
 # Bulgaria
 #
 # From Plamen Simenov via Steffen Thorsen (1999-09-09):
@@ -1013,13 +1009,11 @@ Zone	Europe/Sofia	1:33:16 -	LMT	1880
 			2:00	E-Eur	EE%sT	1997
 			2:00	EU	EE%sT
 
-# Croatia
-# See Europe/Belgrade.
-
 # Cyprus
 # Please see the 'asia' file for Asia/Nicosia.
 
-# Czech Republic / Czechia
+# Czech Republic (Czechia)
+# Slovakia
 #
 # From Paul Eggert (2018-04-15):
 # The source for Czech data is: Kdy začíná a končí letní čas. 2018-04-15.
@@ -1046,65 +1040,14 @@ Zone	Europe/Prague	0:57:44 -	LMT	1850
 # End of rearguard section.
 			1:00	Czech	CE%sT	1979
 			1:00	EU	CE%sT
-# Use Europe/Prague also for Slovakia.
 
-# Denmark, Faroe Islands, and Greenland
-
-# From Jesper Nørgaard Welen (2005-04-26):
-# the law [introducing standard time] was in effect from 1894-01-01....
-# The page https://www.retsinformation.dk/eli/lta/1893/83
-# confirms this, and states that the law was put forth 1893-03-29.
-#
-# The EU [actually, EEC and Euratom] treaty with effect from 1973:
-# https://www.retsinformation.dk/eli/lta/1972/21100
-#
-# This provoked a new law from 1974 to make possible summer time changes
-# in subsequent decrees with the law
-# https://www.retsinformation.dk/eli/lta/1974/223
-#
-# It seems however that no decree was set forward until 1980.  I have
-# not found any decree, but in another related law, the effecting DST
-# changes are stated explicitly to be from 1980-04-06 at 02:00 to
-# 1980-09-28 at 02:00.  If this is true, this differs slightly from
-# the EU rule in that DST runs to 02:00, not 03:00.  We don't know
-# when Denmark began using the EU rule correctly, but we have only
-# confirmation of the 1980-time, so I presume it was correct in 1981:
-# The law is about the management of the extra hour, concerning
-# working hours reported and effect on obligatory-rest rules (which
-# was suspended on that night):
-# https://web.archive.org/web/20140104053304/https://www.retsinformation.dk/Forms/R0710.aspx?id=60267
-
-# From Jesper Nørgaard Welen (2005-06-11):
-# The Herning Folkeblad (1980-09-26) reported that the night between
-# Saturday and Sunday the clock is set back from three to two.
-
-# From Paul Eggert (2005-06-11):
-# Hence the "02:00" of the 1980 law refers to standard time, not
-# wall-clock time, and so the EU rules were in effect in 1980.
-
-# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Denmark	1916	only	-	May	14	23:00	1:00	S
-Rule	Denmark	1916	only	-	Sep	30	23:00	0	-
-Rule	Denmark	1940	only	-	May	15	 0:00	1:00	S
-Rule	Denmark	1945	only	-	Apr	 2	 2:00s	1:00	S
-Rule	Denmark	1945	only	-	Aug	15	 2:00s	0	-
-Rule	Denmark	1946	only	-	May	 1	 2:00s	1:00	S
-Rule	Denmark	1946	only	-	Sep	 1	 2:00s	0	-
-Rule	Denmark	1947	only	-	May	 4	 2:00s	1:00	S
-Rule	Denmark	1947	only	-	Aug	10	 2:00s	0	-
-Rule	Denmark	1948	only	-	May	 9	 2:00s	1:00	S
-Rule	Denmark	1948	only	-	Aug	 8	 2:00s	0	-
-#
+# Faroe Is
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Copenhagen	 0:50:20 -	LMT	1890
-			 0:50:20 -	CMT	1894 Jan  1 # Copenhagen MT
-			 1:00	Denmark	CE%sT	1942 Nov  2  2:00s
-			 1:00	C-Eur	CE%sT	1945 Apr  2  2:00
-			 1:00	Denmark	CE%sT	1980
-			 1:00	EU	CE%sT
 Zone Atlantic/Faroe	-0:27:04 -	LMT	1908 Jan 11 # Tórshavn
 			 0:00	-	WET	1981
 			 0:00	EU	WE%sT
+
+# Greenland
 #
 # From Paul Eggert (2004-10-31):
 # During World War II, Germany maintained secret manned weather stations in
@@ -1183,7 +1126,30 @@ Zone Atlantic/Faroe	-0:27:04 -	LMT	1908 Jan 11 # Tórshavn
 # "National Park" by Executive Order:
 # http://naalakkersuisut.gl/~/media/Nanoq/Files/Attached%20Files/Engelske-tekster/Legislation/Executive%20Order%20National%20Park.rtf
 # It is their only National Park.
+
+# From Jonas Nyrup (2022-11-24):
+# On last Saturday in October 2023 when DST ends America/Nuuk will switch
+# from -03/-02 to -02/-01
+# https://sermitsiaq.ag/forslagtidsforskel-danmark-mindskes-sommertid-beholdes
+# ...
+# https://sermitsiaq.ag/groenland-skifte-tidszone-trods-bekymringer
 #
+# From Jürgen Appel (2022-11-25):
+# https://ina.gl/samlinger/oversigt-over-samlinger/samling/dagsordener/dagsorden.aspx?lang=da&day=24-11-2022
+# If I understand this correctly, from the next planned switch to
+# summer time, Greenland will permanently stay at that time, i.e. no
+# switch back to winter time in 2023 will occur.
+#
+# From Paul Eggert (2022-11-28):
+# The official document in Danish
+# https://naalakkersuisut.gl/-/media/naalakkersuisut/filer/kundgoerelser/2022/11/2511/31_da_inatsisartutlov-om-tidens-bestemmelse.pdf?la=da&hash=A33597D8A38CC7038465241119EF34F3
+# says standard time for Greenland is -02, that Naalakkersuisut can lay down
+# rules for DST and can require some areas to use a different time zone,
+# and that this all takes effect 2023-03-25 22:00.  The abovementioned
+# "bekymringer" URL says the intent is no transition March 25, that
+# Greenland will not go back to winter time in fall 2023, and that
+# only America/Nuuk is affected (though further changes may occur).
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Thule	1991	1992	-	Mar	lastSun	2:00	1:00	D
 Rule	Thule	1991	1992	-	Sep	lastSun	2:00	0	S
@@ -1206,7 +1172,8 @@ Zone America/Scoresbysund -1:27:52 -	LMT	1916 Jul 28 # Ittoqqortoormiit
 			-1:00	EU	-01/+00
 Zone America/Nuuk	-3:26:56 -	LMT	1916 Jul 28 # Godthåb
 			-3:00	-	-03	1980 Apr  6  2:00
-			-3:00	EU	-03/-02
+			-3:00	EU	-03/-02	2023 Mar 25 22:00
+			-2:00	-	-02
 Zone America/Thule	-4:35:08 -	LMT	1916 Jul 28 # Pituffik
 			-4:00	Thule	A%sT
 
@@ -1321,20 +1288,17 @@ Rule	Finland	1942	only	-	Oct	4	1:00	0	-
 Rule	Finland	1981	1982	-	Mar	lastSun	2:00	1:00	S
 Rule	Finland	1981	1982	-	Sep	lastSun	3:00	0	-
 
-# Milne says Helsinki (Helsingfors) time was 1:39:49.2 (official document);
-# round to nearest.
+# Milne says Helsinki (Helsingfors) time was 1:39:49.2 (official document).
 
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
+		#STDOFF	1:39:49.2
 Zone	Europe/Helsinki	1:39:49 -	LMT	1878 May 31
 			1:39:49	-	HMT	1921 May    # Helsinki Mean Time
 			2:00	Finland	EE%sT	1983
 			2:00	EU	EE%sT
 
-# Åland Is
-Link	Europe/Helsinki	Europe/Mariehamn
-
-
 # France
+# Monaco
 
 # From Ciro Discepolo (2000-12-20):
 #
@@ -1472,7 +1436,10 @@ Zone	Europe/Paris	0:09:21 -	LMT	1891 Mar 16
 			1:00	France	CE%sT	1977
 			1:00	EU	CE%sT
 
+# Denmark
 # Germany
+# Norway
+# Sweden
 
 # From Markus Kuhn (1998-09-29):
 # The German time zone web site by the Physikalisch-Technische
@@ -1490,6 +1457,53 @@ Zone	Europe/Paris	0:09:21 -	LMT	1891 Mar 16
 # However, Moscow did not observe daylight saving in 1945, so
 # this was equivalent to UT +03, not +04.
 
+# Svalbard & Jan Mayen
+
+# From Steffen Thorsen (2001-05-01):
+# Although I could not find it explicitly, it seems that Jan Mayen and
+# Svalbard have been using the same time as Norway at least since the
+# time they were declared as parts of Norway.  Svalbard was declared
+# as a part of Norway by law of 1925-07-17 no 11, section 4 and Jan
+# Mayen by law of 1930-02-27 no 2, section 2. (From
+# <http://www.lovdata.no/all/nl-19250717-011.html> and
+# <http://www.lovdata.no/all/nl-19300227-002.html>).  The law/regulation
+# for normal/standard time in Norway is from 1894-06-29 no 1 (came
+# into operation on 1895-01-01) and Svalbard/Jan Mayen seem to be a
+# part of this law since 1925/1930. (From
+# <http://www.lovdata.no/all/nl-18940629-001.html>) I have not been
+# able to find if Jan Mayen used a different time zone (e.g. -0100)
+# before 1930. Jan Mayen has only been "inhabited" since 1921 by
+# Norwegian meteorologists and maybe used the same time as Norway ever
+# since 1921.  Svalbard (Arctic/Longyearbyen) has been inhabited since
+# before 1895, and therefore probably changed the local time somewhere
+# between 1895 and 1925 (inclusive).
+
+# From Paul Eggert (2013-09-04):
+#
+# Actually, Jan Mayen was never occupied by Germany during World War II,
+# so it must have diverged from Oslo time during the war, as Oslo was
+# keeping Berlin time.
+#
+# <https://www.jan-mayen.no/history.htm> says that the meteorologists
+# burned down their station in 1940 and left the island, but returned in
+# 1941 with a small Norwegian garrison and continued operations despite
+# frequent air attacks from Germans.  In 1943 the Americans established a
+# radiolocating station on the island, called "Atlantic City".  Possibly
+# the UT offset changed during the war, but I think it unlikely that
+# Jan Mayen used German daylight-saving rules.
+#
+# Svalbard is more complicated, as it was raided in August 1941 by an
+# Allied party that evacuated the civilian population to England (says
+# <http://www.bartleby.com/65/sv/Svalbard.html>).  The Svalbard FAQ
+# <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were
+# expelled on 1942-05-14.  However, small parties of Germans did return,
+# and according to Wilhelm Dege's book "War North of 80" (1954)
+# http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html
+# the German armed forces at the Svalbard weather station code-named
+# Haudegen did not surrender to the Allies until September 1945.
+#
+# All these events predate our cutoff date of 1970, so use Europe/Berlin
+# for these regions.
 
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Germany	1946	only	-	Apr	14	2:00s	1:00	S
@@ -1515,21 +1529,6 @@ Zone	Europe/Berlin	0:53:28 -	LMT	1893 Apr
 			1:00	Germany	CE%sT	1980
 			1:00	EU	CE%sT
 
-# From Tobias Conradi (2011-09-12):
-# Büsingen <http://www.buesingen.de>, surrounded by the Swiss canton
-# Schaffhausen, did not start observing DST in 1980 as the rest of DE
-# (West Germany at that time) and DD (East Germany at that time) did.
-# DD merged into DE, the area is currently covered by code DE in ISO 3166-1,
-# which in turn is covered by the zone Europe/Berlin.
-#
-# Source for the time in Büsingen 1980:
-# http://www.srf.ch/player/video?id=c012c029-03b7-4c2b-9164-aa5902cd58d3
-
-# From Arthur David Olson (2012-03-03):
-# Büsingen and Zurich have shared clocks since 1970.
-
-Link	Europe/Zurich	Europe/Busingen
-
 # Georgia
 # Please see the "asia" file for Asia/Tbilisi.
 # Herodotus (Histories, IV.45) says Georgia north of the Phasis (now Rioni)
@@ -1537,7 +1536,7 @@ Link	Europe/Zurich	Europe/Busingen
 
 # Gibraltar
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Gibraltar	-0:21:24 -	LMT	1880 Aug  2  0:00s
+Zone Europe/Gibraltar	-0:21:24 -	LMT	1880 Aug  2
 			0:00	GB-Eire	%s	1957 Apr 14  2:00
 			1:00	-	CET	1982
 			1:00	EU	CE%sT
@@ -1647,65 +1646,9 @@ Zone	Europe/Budapest	1:16:20 -	LMT	1890 Nov  1
 			1:00	Hungary	CE%sT	1984
 			1:00	EU	CE%sT
 
-# Iceland
-#
-# From Adam David (1993-11-06):
-# The name of the timezone in Iceland for system / mail / news purposes is GMT.
-#
-# (1993-12-05):
-# This material is paraphrased from the 1988 edition of the University of
-# Iceland Almanak.
-#
-# From January 1st, 1908 the whole of Iceland was standardised at 1 hour
-# behind GMT. Previously, local mean solar time was used in different parts
-# of Iceland, the almanak had been based on Reykjavík mean solar time which
-# was 1 hour and 28 minutes behind GMT.
-#
-# "first day of winter" referred to [below] means the first day of the 26 weeks
-# of winter, according to the old icelandic calendar that dates back to the
-# time the norsemen first settled Iceland.  The first day of winter is always
-# Saturday, but is not dependent on the Julian or Gregorian calendars.
-#
-# (1993-12-10):
-# I have a reference from the Oxford Icelandic-English dictionary for the
-# beginning of winter, which ties it to the ecclesiastical calendar (and thus
-# to the julian/gregorian calendar) over the period in question.
-#	the winter begins on the Saturday next before St. Luke's day
-#	(old style), or on St. Luke's day, if a Saturday.
-# St. Luke's day ought to be traceable from ecclesiastical sources. "old style"
-# might be a reference to the Julian calendar as opposed to Gregorian, or it
-# might mean something else (???).
-#
-# From Paul Eggert (2014-11-22):
-# The information below is taken from the 1988 Almanak; see
-# http://www.almanak.hi.is/klukkan.html
-#
-# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Iceland	1917	1919	-	Feb	19	23:00	1:00	-
-Rule	Iceland	1917	only	-	Oct	21	 1:00	0	-
-Rule	Iceland	1918	1919	-	Nov	16	 1:00	0	-
-Rule	Iceland	1921	only	-	Mar	19	23:00	1:00	-
-Rule	Iceland	1921	only	-	Jun	23	 1:00	0	-
-Rule	Iceland	1939	only	-	Apr	29	23:00	1:00	-
-Rule	Iceland	1939	only	-	Oct	29	 2:00	0	-
-Rule	Iceland	1940	only	-	Feb	25	 2:00	1:00	-
-Rule	Iceland	1940	1941	-	Nov	Sun>=2	 1:00s	0	-
-Rule	Iceland	1941	1942	-	Mar	Sun>=2	 1:00s	1:00	-
-# 1943-1946 - first Sunday in March until first Sunday in winter
-Rule	Iceland	1943	1946	-	Mar	Sun>=1	 1:00s	1:00	-
-Rule	Iceland	1942	1948	-	Oct	Sun>=22	 1:00s	0	-
-# 1947-1967 - first Sunday in April until first Sunday in winter
-Rule	Iceland	1947	1967	-	Apr	Sun>=1	 1:00s	1:00	-
-# 1949 and 1967 Oct transitions delayed by 1 week
-Rule	Iceland	1949	only	-	Oct	30	 1:00s	0	-
-Rule	Iceland	1950	1966	-	Oct	Sun>=22	 1:00s	0	-
-Rule	Iceland	1967	only	-	Oct	29	 1:00s	0	-
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Atlantic/Reykjavik	-1:28	-	LMT	1908
-			-1:00	Iceland	-01/+00	1968 Apr  7  1:00s
-			 0:00	-	GMT
-
 # Italy
+# San Marino
+# Vatican City
 #
 # From Paul Eggert (2001-03-06):
 # Sicily and Sardinia each had their own time zones from 1866 to 1893,
@@ -1819,19 +1762,12 @@ Rule	Italy	1978	only	-	Oct	 1	 0:00s	0	-
 Rule	Italy	1979	only	-	Sep	30	 0:00s	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Rome	0:49:56 -	LMT	1866 Dec 12
-			0:49:56	-	RMT	1893 Oct 31 23:49:56 # Rome Mean
+			0:49:56	-	RMT	1893 Oct 31 23:00u # Rome Mean
 			1:00	Italy	CE%sT	1943 Sep 10
 			1:00	C-Eur	CE%sT	1944 Jun  4
 			1:00	Italy	CE%sT	1980
 			1:00	EU	CE%sT
 
-# Kosovo
-# See Europe/Belgrade.
-
-
-Link	Europe/Rome	Europe/Vatican
-Link	Europe/Rome	Europe/San_Marino
-
 # Latvia
 
 # From Liene Kanepe (1998-09-17):
@@ -1914,19 +1850,6 @@ Zone	Europe/Riga	1:36:34	-	LMT	1880
 			2:00	-	EET	2001 Jan  2
 			2:00	EU	EE%sT
 
-# Liechtenstein
-
-# From Paul Eggert (2013-09-09):
-# Shanks & Pottenger say Vaduz is like Zurich.
-
-# From Alois Treindl (2019-07-04):
-# I was able to access the online archive of the Vaduz paper Vaterland ...
-# I could confirm from the paper that Liechtenstein did in fact follow
-# the same DST in 1941 and 1942 as Switzerland did.
-
-Link Europe/Zurich Europe/Vaduz
-
-
 # Lithuania
 
 # From Paul Eggert (2016-03-18):
@@ -1979,45 +1902,6 @@ Zone	Europe/Vilnius	1:41:16	-	LMT	1880
 			2:00	-	EET	2003 Jan  1
 			2:00	EU	EE%sT
 
-# Luxembourg
-# Whitman disagrees with most of these dates in minor ways;
-# go with Shanks & Pottenger.
-# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Lux	1916	only	-	May	14	23:00	1:00	S
-Rule	Lux	1916	only	-	Oct	 1	 1:00	0	-
-Rule	Lux	1917	only	-	Apr	28	23:00	1:00	S
-Rule	Lux	1917	only	-	Sep	17	 1:00	0	-
-Rule	Lux	1918	only	-	Apr	Mon>=15	 2:00s	1:00	S
-Rule	Lux	1918	only	-	Sep	Mon>=15	 2:00s	0	-
-Rule	Lux	1919	only	-	Mar	 1	23:00	1:00	S
-Rule	Lux	1919	only	-	Oct	 5	 3:00	0	-
-Rule	Lux	1920	only	-	Feb	14	23:00	1:00	S
-Rule	Lux	1920	only	-	Oct	24	 2:00	0	-
-Rule	Lux	1921	only	-	Mar	14	23:00	1:00	S
-Rule	Lux	1921	only	-	Oct	26	 2:00	0	-
-Rule	Lux	1922	only	-	Mar	25	23:00	1:00	S
-Rule	Lux	1922	only	-	Oct	Sun>=2	 1:00	0	-
-Rule	Lux	1923	only	-	Apr	21	23:00	1:00	S
-Rule	Lux	1923	only	-	Oct	Sun>=2	 2:00	0	-
-Rule	Lux	1924	only	-	Mar	29	23:00	1:00	S
-Rule	Lux	1924	1928	-	Oct	Sun>=2	 1:00	0	-
-Rule	Lux	1925	only	-	Apr	 5	23:00	1:00	S
-Rule	Lux	1926	only	-	Apr	17	23:00	1:00	S
-Rule	Lux	1927	only	-	Apr	 9	23:00	1:00	S
-Rule	Lux	1928	only	-	Apr	14	23:00	1:00	S
-Rule	Lux	1929	only	-	Apr	20	23:00	1:00	S
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Luxembourg	0:24:36 -	LMT	1904 Jun
-			1:00	Lux	CE%sT	1918 Nov 25
-			0:00	Lux	WE%sT	1929 Oct  6  2:00s
-			0:00	Belgium	WE%sT	1940 May 14  3:00
-			1:00	C-Eur	WE%sT	1944 Sep 18  3:00
-			1:00	Belgium	CE%sT	1977
-			1:00	EU	CE%sT
-
-# North Macedonia
-# See Europe/Belgrade.
-
 # Malta
 #
 # From Paul Eggert (2016-10-21):
@@ -2032,7 +1916,7 @@ Rule	Malta	1975	1979	-	Apr	Sun>=15	2:00	1:00	S
 Rule	Malta	1975	1980	-	Sep	Sun>=15	2:00	0	-
 Rule	Malta	1980	only	-	Mar	31	2:00	1:00	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Malta	0:58:04 -	LMT	1893 Nov  2  0:00s # Valletta
+Zone	Europe/Malta	0:58:04 -	LMT	1893 Nov  2 # Valletta
 			1:00	Italy	CE%sT	1973 Mar 31
 			1:00	Malta	CE%sT	1981
 			1:00	EU	CE%sT
@@ -2113,177 +1997,6 @@ Zone	Europe/Chisinau	1:55:20 -	LMT	1880
 # See Romania commentary for the guessed 1997 transition to EU rules.
 			2:00	Moldova	EE%sT
 
-# Monaco
-#
-# From Michael Deckers (2020-06-12):
-# In the "Journal de Monaco" of 1892-05-24, online at
-# https://journaldemonaco.gouv.mc/var/jdm/storage/original/application/b1c67c12c5af11b41ea888fb048e4fe8.pdf
-# we read: ...
-#  [In virtue of a Sovereign Ordinance of the May 13 of the current [year],
-#   legal time in the Principality will be set to, from the date of June 1,
-#   1892 onwards, to the meridian of Paris, as in France.]
-# In the "Journal de Monaco" of 1911-03-28, online at
-# https://journaldemonaco.gouv.mc/var/jdm/storage/original/application/de74ffb7db53d4f599059fe8f0ed482a.pdf
-# we read an ordinance of 1911-03-16: ...
-#  [Legal time in the Principality will be set, from the date of promulgation
-#   of the present ordinance, to legal time in France....  Consequently, legal
-#   time will be retarded by 9 minutes and 21 seconds.]
-#
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Monaco	0:29:32 -	LMT	1892 Jun  1
-			0:09:21	-	PMT	1911 Mar 29 # Paris Mean Time
-			0:00	France	WE%sT	1945 Sep 16  3:00
-			1:00	France	CE%sT	1977
-			1:00	EU	CE%sT
-
-# Montenegro
-# See Europe/Belgrade.
-
-# Netherlands
-
-# Howse writes that the Netherlands' railways used GMT between 1892 and 1940,
-# but for other purposes the Netherlands used Amsterdam mean time.
-
-# However, Robert H. van Gent writes (2001-04-01):
-# Howse's statement is only correct up to 1909. From 1909-05-01 (00:00:00
-# Amsterdam mean time) onwards, the whole of the Netherlands (including
-# the Dutch railways) was required by law to observe Amsterdam mean time
-# (19 minutes 32.13 seconds ahead of GMT). This had already been the
-# common practice (except for the railways) for many decades but it was
-# not until 1909 when the Dutch government finally defined this by law.
-# On 1937-07-01 this was changed to 20 minutes (exactly) ahead of GMT and
-# was generally known as Dutch Time ("Nederlandse Tijd").
-#
-# (2001-04-08):
-# 1892-05-01 was the date when the Dutch railways were by law required to
-# observe GMT while the remainder of the Netherlands adhered to the common
-# practice of following Amsterdam mean time.
-#
-# (2001-04-09):
-# In 1835 the authorities of the province of North Holland requested the
-# municipal authorities of the towns and cities in the province to observe
-# Amsterdam mean time but I do not know in how many cases this request was
-# actually followed.
-#
-# From 1852 onwards the Dutch telegraph offices were by law required to
-# observe Amsterdam mean time. As the time signals from the observatory of
-# Leiden were also distributed by the telegraph system, I assume that most
-# places linked up with the telegraph (and railway) system automatically
-# adopted Amsterdam mean time.
-#
-# Although the early Dutch railway companies initially observed a variety
-# of times, most of them had adopted Amsterdam mean time by 1858 but it
-# was not until 1866 when they were all required by law to observe
-# Amsterdam mean time.
-
-# The data entries before 1945 are taken from
-# https://www.staff.science.uu.nl/~gent0113/wettijd/wettijd.htm
-
-# From Paul Eggert (2021-05-09):
-# I invented the abbreviations AMT for Amsterdam Mean Time and NST for
-# Netherlands Summer Time, used in the Netherlands from 1835 to 1937.
-
-# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Neth	1916	only	-	May	 1	0:00	1:00	NST	# Netherlands Summer Time
-Rule	Neth	1916	only	-	Oct	 1	0:00	0	AMT	# Amsterdam Mean Time
-Rule	Neth	1917	only	-	Apr	16	2:00s	1:00	NST
-Rule	Neth	1917	only	-	Sep	17	2:00s	0	AMT
-Rule	Neth	1918	1921	-	Apr	Mon>=1	2:00s	1:00	NST
-Rule	Neth	1918	1921	-	Sep	lastMon	2:00s	0	AMT
-Rule	Neth	1922	only	-	Mar	lastSun	2:00s	1:00	NST
-Rule	Neth	1922	1936	-	Oct	Sun>=2	2:00s	0	AMT
-Rule	Neth	1923	only	-	Jun	Fri>=1	2:00s	1:00	NST
-Rule	Neth	1924	only	-	Mar	lastSun	2:00s	1:00	NST
-Rule	Neth	1925	only	-	Jun	Fri>=1	2:00s	1:00	NST
-# From 1926 through 1939 DST began 05-15, except that it was delayed by a week
-# in years when 05-15 fell in the Pentecost weekend.
-Rule	Neth	1926	1931	-	May	15	2:00s	1:00	NST
-Rule	Neth	1932	only	-	May	22	2:00s	1:00	NST
-Rule	Neth	1933	1936	-	May	15	2:00s	1:00	NST
-Rule	Neth	1937	only	-	May	22	2:00s	1:00	NST
-Rule	Neth	1937	only	-	Jul	 1	0:00	1:00	S
-Rule	Neth	1937	1939	-	Oct	Sun>=2	2:00s	0	-
-Rule	Neth	1938	1939	-	May	15	2:00s	1:00	S
-Rule	Neth	1945	only	-	Apr	 2	2:00s	1:00	S
-Rule	Neth	1945	only	-	Sep	16	2:00s	0	-
-#
-# Amsterdam Mean Time was +00:19:32.13, but the .13 is omitted
-# below because the current format requires STDOFF to be an integer.
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Amsterdam	0:19:32 -	LMT	1835
-			0:19:32	Neth	%s	1937 Jul  1
-			0:20	Neth +0020/+0120 1940 May 16  0:00
-			1:00	C-Eur	CE%sT	1945 Apr  2  2:00
-			1:00	Neth	CE%sT	1977
-			1:00	EU	CE%sT
-
-# Norway
-# http://met.no/met/met_lex/q_u/sommertid.html (2004-01) agrees with Shanks &
-# Pottenger.
-# Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
-Rule	Norway	1916	only	-	May	22	1:00	1:00	S
-Rule	Norway	1916	only	-	Sep	30	0:00	0	-
-Rule	Norway	1945	only	-	Apr	 2	2:00s	1:00	S
-Rule	Norway	1945	only	-	Oct	 1	2:00s	0	-
-Rule	Norway	1959	1964	-	Mar	Sun>=15	2:00s	1:00	S
-Rule	Norway	1959	1965	-	Sep	Sun>=15	2:00s	0	-
-Rule	Norway	1965	only	-	Apr	25	2:00s	1:00	S
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Oslo	0:43:00 -	LMT	1895 Jan  1
-			1:00	Norway	CE%sT	1940 Aug 10 23:00
-			1:00	C-Eur	CE%sT	1945 Apr  2  2:00
-			1:00	Norway	CE%sT	1980
-			1:00	EU	CE%sT
-
-# Svalbard & Jan Mayen
-
-# From Steffen Thorsen (2001-05-01):
-# Although I could not find it explicitly, it seems that Jan Mayen and
-# Svalbard have been using the same time as Norway at least since the
-# time they were declared as parts of Norway.  Svalbard was declared
-# as a part of Norway by law of 1925-07-17 no 11, section 4 and Jan
-# Mayen by law of 1930-02-27 no 2, section 2. (From
-# <http://www.lovdata.no/all/nl-19250717-011.html> and
-# <http://www.lovdata.no/all/nl-19300227-002.html>).  The law/regulation
-# for normal/standard time in Norway is from 1894-06-29 no 1 (came
-# into operation on 1895-01-01) and Svalbard/Jan Mayen seem to be a
-# part of this law since 1925/1930. (From
-# <http://www.lovdata.no/all/nl-18940629-001.html>) I have not been
-# able to find if Jan Mayen used a different time zone (e.g. -0100)
-# before 1930. Jan Mayen has only been "inhabited" since 1921 by
-# Norwegian meteorologists and maybe used the same time as Norway ever
-# since 1921.  Svalbard (Arctic/Longyearbyen) has been inhabited since
-# before 1895, and therefore probably changed the local time somewhere
-# between 1895 and 1925 (inclusive).
-
-# From Paul Eggert (2013-09-04):
-#
-# Actually, Jan Mayen was never occupied by Germany during World War II,
-# so it must have diverged from Oslo time during the war, as Oslo was
-# keeping Berlin time.
-#
-# <https://www.jan-mayen.no/history.htm> says that the meteorologists
-# burned down their station in 1940 and left the island, but returned in
-# 1941 with a small Norwegian garrison and continued operations despite
-# frequent air attacks from Germans.  In 1943 the Americans established a
-# radiolocating station on the island, called "Atlantic City".  Possibly
-# the UT offset changed during the war, but I think it unlikely that
-# Jan Mayen used German daylight-saving rules.
-#
-# Svalbard is more complicated, as it was raided in August 1941 by an
-# Allied party that evacuated the civilian population to England (says
-# <http://www.bartleby.com/65/sv/Svalbard.html>).  The Svalbard FAQ
-# <http://www.svalbard.com/SvalbardFAQ.html> says that the Germans were
-# expelled on 1942-05-14.  However, small parties of Germans did return,
-# and according to Wilhelm Dege's book "War North of 80" (1954)
-# http://www.ucalgary.ca/UofC/departments/UP/1-55238/1-55238-110-2.html
-# the German armed forces at the Svalbard weather station code-named
-# Haudegen did not surrender to the Allies until September 1945.
-#
-# All these events predate our cutoff date of 1970, so use Europe/Oslo
-# for these regions.
-Link	Europe/Oslo	Arctic/Longyearbyen
-
 # Poland
 
 # The 1919 dates and times can be found in Tygodnik Urzędowy nr 1 (1919-03-20),
@@ -2336,7 +2049,6 @@ Zone	Europe/Warsaw	1:24:00 -	LMT	1880
 # According to a Portuguese decree (1911-05-26)
 # https://dre.pt/application/dir/pdf1sdip/1911/05/12500/23132313.pdf
 # Lisbon was at -0:36:44.68, but switched to GMT on 1912-01-01 at 00:00.
-# Round the old offset to -0:36:45.  This agrees with Willett....
 #
 # From Michael Deckers (2018-02-15):
 # article 5 [of the 1911 decree; Deckers's translation] ...:
@@ -2423,6 +2135,7 @@ Rule	Port	1981	1982	-	Mar	lastSun	 1:00s	1:00	S
 Rule	Port	1983	only	-	Mar	lastSun	 2:00s	1:00	S
 #
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
+		#STDOFF	-0:36:44.68
 Zone	Europe/Lisbon	-0:36:45 -	LMT	1884
 			-0:36:45 -	LMT	1912 Jan  1  0:00u # Lisbon MT
 			 0:00	Port	WE%sT	1966 Apr  3  2:00
@@ -2431,9 +2144,13 @@ Zone	Europe/Lisbon	-0:36:45 -	LMT	1884
 			 0:00	W-Eur	WE%sT	1992 Sep 27  1:00s
 			 1:00	EU	CE%sT	1996 Mar 31  1:00u
 			 0:00	EU	WE%sT
-# This Zone can be simplified once we assume zic %z.
 Zone Atlantic/Azores	-1:42:40 -	LMT	1884        # Ponta Delgada
 			-1:54:32 -	HMT	1912 Jan  1  2:00u # Horta MT
+# Vanguard section, for zic and other parsers that support %z.
+#			-2:00	Port	%z	1966 Apr  3  2:00
+#			-1:00	Port	%z	1983 Sep 25  1:00s
+#			-1:00	W-Eur	%z	1992 Sep 27  1:00s
+# Rearguard section, for parsers lacking %z; see ziguard.awk.
 			-2:00	Port	-02/-01	1942 Apr 25 22:00s
 			-2:00	Port	+00	1942 Aug 15 22:00s
 			-2:00	Port	-02/-01	1943 Apr 17 22:00s
@@ -2445,11 +2162,14 @@ Zone Atlantic/Azores	-1:42:40 -	LMT	1884        # Ponta Delgada
 			-2:00	Port	-02/-01	1966 Apr  3  2:00
 			-1:00	Port	-01/+00	1983 Sep 25  1:00s
 			-1:00	W-Eur	-01/+00	1992 Sep 27  1:00s
+# End of rearguard section.
 			 0:00	EU	WE%sT	1993 Mar 28  1:00u
 			-1:00	EU	-01/+00
-# This Zone can be simplified once we assume zic %z.
 Zone Atlantic/Madeira	-1:07:36 -	LMT	1884        # Funchal
 			-1:07:36 -	FMT	1912 Jan  1  1:00u # Funchal MT
+# Vanguard section, for zic and other parsers that support %z.
+#			-1:00	Port	%z	1966 Apr  3  2:00
+# Rearguard section, for parsers lacking %z; see ziguard.awk.
 			-1:00	Port	-01/+00	1942 Apr 25 22:00s
 			-1:00	Port	+01	1942 Aug 15 22:00s
 			-1:00	Port	-01/+00	1943 Apr 17 22:00s
@@ -2459,6 +2179,7 @@ Zone Atlantic/Madeira	-1:07:36 -	LMT	1884        # Funchal
 			-1:00	Port	-01/+00	1945 Apr 21 22:00s
 			-1:00	Port	+01	1945 Aug 25 22:00s
 			-1:00	Port	-01/+00	1966 Apr  3  2:00
+# End of rearguard section.
 			 0:00	Port	WE%sT	1983 Sep 25  1:00s
 			 0:00	EU	WE%sT
 
@@ -2877,28 +2598,31 @@ Zone Europe/Simferopol	 2:16:24 -	LMT	1880
 			 2:00	-	EET	1992 Mar 20
 # Central Crimea used Moscow time 1994/1997.
 #
-# From Paul Eggert (2006-03-22):
-# The _Economist_ (1994-05-28, p 45) reports that central Crimea switched
-# from Kiev to Moscow time sometime after the January 1994 elections.
+# From Paul Eggert (2022-07-21):
+# The _Economist_ (1994-05-28, p 45) reported that central Crimea switched
+# from Kyiv to Moscow time sometime after the January 1994 elections.
 # Shanks (1999) says "date of change uncertain", but implies that it happened
 # sometime between the 1994 DST switches.  Shanks & Pottenger simply say
 # 1994-09-25 03:00, but that can't be right.  For now, guess it
-# changed in May.
+# changed in May.  This change evidently didn't last long; see below.
 			 2:00	C-Eur	EE%sT	1994 May
-# From IATA SSIM (1994/1997), which also says that Kerch is still like Kiev.
-			 3:00	E-Eur	MSK/MSD	1996 Mar 31  0:00s
+# From IATA SSIM (1994/1997), which also said that Kerch is still like Kyiv.
+			 3:00	C-Eur	MSK/MSD	1996 Mar 31  0:00s
 			 3:00	1:00	MSD	1996 Oct 27  3:00s
-# IATA SSIM (1997-09) says Crimea switched to EET/EEST.
+# IATA SSIM (1997-09) said Crimea switched to EET/EEST.
 # Assume it happened in March by not changing the clocks.
-			 3:00	Russia	MSK/MSD	1997
 			 3:00	-	MSK	1997 Mar lastSun  1:00u
 # From Alexander Krivenyshev (2014-03-17):
 # time change at 2:00 (2am) on March 30, 2014
 # https://vz.ru/news/2014/3/17/677464.html
-# From Paul Eggert (2014-03-30):
-# Simferopol and Sevastopol reportedly changed their central town clocks
-# late the previous day, but this appears to have been ceremonial
-# and the discrepancies are small enough to not worry about.
+# From Tim Parenti (2022-07-01), per Paul Eggert (2014-03-30):
+# The clocks at the railway station in Simferopol were put forward from 22:00
+# to 24:00 the previous day in a "symbolic ceremony"; however, per
+# contemporaneous news reports, "ordinary Crimeans [made] the daylight savings
+# time switch at 2am" on Sunday.
+# https://www.business-standard.com/article/pti-stories/crimea-to-set-clocks-to-russia-time-114033000014_1.html
+# https://www.reuters.com/article/us-ukraine-crisis-crimea-time/crimea-switches-to-moscow-time-amid-incorporation-frenzy-idUKBREA2S0LT20140329
+# https://www.bbc.com/news/av/world-europe-26806583
 			 2:00	EU	EE%sT	2014 Mar 30  2:00
 			 4:00	-	MSK	2014 Oct 26  2:00s
 			 3:00	-	MSK
@@ -3059,11 +2783,12 @@ Zone Europe/Ulyanovsk	 3:13:36 -	LMT	1919 Jul  1  0:00u
 # Note: Effective 2005-12-01, (59) Perm Oblast and (81) Komi-Permyak
 # Autonomous Okrug merged to form (90, RU-PER) Perm Krai.
 
-# Milne says Yekaterinburg was 4:02:32.9; round to nearest.
+# Milne says Yekaterinburg was 4:02:32.9.
 # Byalokoz 1919 says its provincial time was based on Perm, at 3:45:05.
 # Assume it switched on 1916-07-03, the time of the new standard.
 # The 1919 and 1930 transitions are from Shanks.
 
+		#STDOFF	 4:02:32.9
 Zone Asia/Yekaterinburg	 4:02:33 -	LMT	1916 Jul  3
 			 3:45:05 -	PMT	1919 Jul 15  4:00
 			 4:00	-	+04	1930 Jun 21
@@ -3375,8 +3100,8 @@ Zone Asia/Vladivostok	 8:47:31 -	LMT	1922 Nov 15
 # 14-28	****	Tomponsky District
 # 14-30	****	Ust-Maysky District
 
-# From Arthur David Olson (2012-05-09):
-# Tomponskij and Ust'-Majskij switched from Vladivostok time to Yakutsk time
+# From Arthur David Olson (2022-03-21):
+# Tomponsky and Ust-Maysky switched from Vladivostok time to Yakutsk time
 # in 2011.
 
 # From Paul Eggert (2012-11-25):
@@ -3501,8 +3226,8 @@ Zone Asia/Srednekolymsk	10:14:52 -	LMT	1924 May  2
 # Asia/Ust-Nera covers parts of (14, RU-SA) Sakha (Yakutia) Republic:
 # 14-22	****	Oymyakonsky District
 
-# From Arthur David Olson (2012-05-09):
-# Ojmyakonskij [and the Kuril Islands] switched from
+# From Arthur David Olson (2022-03-21):
+# Oymyakonsky and the Kuril Islands switched from
 # Magadan time to Vladivostok time in 2011.
 #
 # From Tim Parenti (2014-07-06), per Alexander Krivenyshev (2014-07-02):
@@ -3553,11 +3278,13 @@ Zone Asia/Anadyr	11:49:56 -	LMT	1924 May  2
 			11:00	Russia	+11/+12	2011 Mar 27  2:00s
 			12:00	-	+12
 
-
-# San Marino
-# See Europe/Rome.
-
+# Bosnia & Herzegovina
+# Croatia
+# Kosovo
+# Montenegro
+# North Macedonia
 # Serbia
+# Slovenia
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
 Zone	Europe/Belgrade	1:22:00	-	LMT	1884
 			1:00	-	CET	1941 Apr 18 23:00
@@ -3569,17 +3296,6 @@ Zone	Europe/Belgrade	1:22:00	-	LMT	1884
 # Shanks & Pottenger don't give as much detail, so go with Koželj.
 			1:00	-	CET	1982 Nov 27
 			1:00	EU	CE%sT
-Link Europe/Belgrade Europe/Ljubljana	# Slovenia
-Link Europe/Belgrade Europe/Podgorica	# Montenegro
-Link Europe/Belgrade Europe/Sarajevo	# Bosnia and Herzegovina
-Link Europe/Belgrade Europe/Skopje	# North Macedonia
-Link Europe/Belgrade Europe/Zagreb	# Croatia
-
-# Slovakia
-Link Europe/Prague Europe/Bratislava
-
-# Slovenia
-# See Europe/Belgrade.
 
 # Spain
 #
@@ -3665,11 +3381,11 @@ Rule SpainAfrica 1977	only	-	Sep	28	 0:00	0	-
 Rule SpainAfrica 1978	only	-	Jun	 1	 0:00	1:00	S
 Rule SpainAfrica 1978	only	-	Aug	 4	 0:00	0	-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone	Europe/Madrid	-0:14:44 -	LMT	1900 Dec 31 23:45:16
+Zone	Europe/Madrid	-0:14:44 -	LMT	1901 Jan  1  0:00u
 			 0:00	Spain	WE%sT	1940 Mar 16 23:00
 			 1:00	Spain	CE%sT	1979
 			 1:00	EU	CE%sT
-Zone	Africa/Ceuta	-0:21:16 -	LMT	1900 Dec 31 23:38:44
+Zone	Africa/Ceuta	-0:21:16 -	LMT	1901 Jan  1  0:00u
 			 0:00	-	WET	1918 May  6 23:00
 			 0:00	1:00	WEST	1918 Oct  7 23:00
 			 0:00	-	WET	1924
@@ -3686,64 +3402,11 @@ Zone	Atlantic/Canary	-1:01:36 -	LMT	1922 Mar # Las Palmas de Gran C.
 # IATA SSIM (1996-09) says the Canaries switch at 2:00u, not 1:00u.
 # Ignore this for now, as the Canaries are part of the EU.
 
-# Sweden
-
-# From Ivan Nilsson (2001-04-13), superseding Shanks & Pottenger:
-#
-# The law "Svensk författningssamling 1878, no 14" about standard time in 1879:
-# From the beginning of 1879 (that is 01-01 00:00) the time for all
-# places in the country is "the mean solar time for the meridian at
-# three degrees, or twelve minutes of time, to the west of the
-# meridian of the Observatory of Stockholm".  The law is dated 1878-05-31.
-#
-# The observatory at that time had the meridian 18° 03' 30"
-# eastern longitude = 01:12:14 in time.  Less 12 minutes gives the
-# national standard time as 01:00:14 ahead of GMT....
-#
-# About the beginning of CET in Sweden. The lawtext ("Svensk
-# författningssamling 1899, no 44") states, that "from the beginning
-# of 1900... ... the same as the mean solar time for the meridian at
-# the distance of one hour of time from the meridian of the English
-# observatory at Greenwich, or at 12 minutes 14 seconds to the west
-# from the meridian of the Observatory of Stockholm". The law is dated
-# 1899-06-16.  In short: At 1900-01-01 00:00:00 the new standard time
-# in Sweden is 01:00:00 ahead of GMT.
-#
-# 1916: The lawtext ("Svensk författningssamling 1916, no 124") states
-# that "1916-05-15 is considered to begin one hour earlier". It is
-# pretty obvious that at 05-14 23:00 the clocks are set to 05-15 00:00....
-# Further the law says, that "1916-09-30 is considered to end one hour later".
-#
-# The laws regulating [DST] are available on the site of the Swedish
-# Parliament beginning with 1985 - the laws regulating 1980/1984 are
-# not available on the site (to my knowledge they are only available
-# in Swedish): <http://www.riksdagen.se/english/work/sfst.asp> (type
-# "sommartid" without the quotes in the field "Fritext" and then click
-# the Sök-button).
-#
-# (2001-05-13):
-#
-# I have now found a newspaper stating that at 1916-10-01 01:00
-# summertime the church-clocks etc were set back one hour to show
-# 1916-10-01 00:00 standard time.  The article also reports that some
-# people thought the switch to standard time would take place already
-# at 1916-10-01 00:00 summer time, but they had to wait for another
-# hour before the event took place.
-#
-# Source: The newspaper "Dagens Nyheter", 1916-10-01, page 7 upper left.
-
-# An extra-special abbreviation style is SET for Swedish Time (svensk
-# normaltid) 1879-1899, 3° west of the Stockholm Observatory.
-
-# Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-Zone Europe/Stockholm	1:12:12 -	LMT	1879 Jan  1
-			1:00:14	-	SET	1900 Jan  1 # Swedish Time
-			1:00	-	CET	1916 May 14 23:00
-			1:00	1:00	CEST	1916 Oct  1  1:00
-			1:00	-	CET	1980
-			1:00	EU	CE%sT
 
+# Germany (Busingen enclave)
+# Liechtenstein
 # Switzerland
+#
 # From Howse:
 # By the end of the 18th century clocks and watches became commonplace
 # and their performance improved enormously.  Communities began to keep
@@ -3835,6 +3498,19 @@ Zone Europe/Stockholm	1:12:12 -	LMT	1879 Jan  1
 # 1853-07-16, though it probably occurred at some other date in Zurich, and
 # legal civil time probably changed at still some other transition date.
 
+# From Tobias Conradi (2011-09-12):
+# Büsingen <http://www.buesingen.de>, surrounded by the Swiss canton
+# Schaffhausen, did not start observing DST in 1980 as the rest of DE
+# (West Germany at that time) and DD (East Germany at that time) did.
+# DD merged into DE, the area is currently covered by code DE in ISO 3166-1,
+# which in turn is covered by the zone Europe/Berlin.
+#
+# Source for the time in Büsingen 1980:
+# http://www.srf.ch/player/video?id=c012c029-03b7-4c2b-9164-aa5902cd58d3
+#
+# From Arthur David Olson (2012-03-03):
+# Büsingen and Zurich have shared clocks since 1970.
+
 # Rule	NAME	FROM	TO	-	IN	ON	AT	SAVE	LETTER/S
 Rule	Swiss	1941	1942	-	May	Mon>=1	1:00	1:00	S
 Rule	Swiss	1941	1942	-	Oct	Mon>=1	2:00	0	-
@@ -4047,11 +3723,10 @@ Zone	Europe/Istanbul	1:55:52 -	LMT	1880
 			2:00	1:00	EEST	2015 Nov  8  1:00u
 			2:00	EU	EE%sT	2016 Sep  7
 			3:00	-	+03
-Link	Europe/Istanbul	Asia/Istanbul	# Istanbul is in both continents.
 
 # Ukraine
 #
-# From Alois Triendl (2014-03-01):
+# From Alois Treindl (2014-03-01):
 # REGULATION A N O V A on March 20, 1992 N 139 ...  means that from
 # 1992 on, Ukraine had DST with begin time at 02:00 am, on last Sunday
 # in March, and end time 03:00 am, last Sunday in September....
@@ -4068,8 +3743,8 @@ Link	Europe/Istanbul	Asia/Istanbul	# Istanbul is in both continents.
 # US colleague David Cochrane) are still trying to get more
 # information upon these local deviations from Kiev rules.
 #
-# From Paul Eggert (2022-02-08):
-# For now, assume that Ukraine's other three zones followed the same rules,
+# From Paul Eggert (2022-08-27):
+# For now, assume that Ukraine's zones all followed the same rules,
 # except that Crimea switched to Moscow time in 1994 as described elsewhere.
 
 # From Igor Karpov, who works for the Ukrainian Ministry of Justice,
@@ -4111,7 +3786,7 @@ Link	Europe/Istanbul	Asia/Istanbul	# Istanbul is in both continents.
 # The law documents themselves are at
 # http://w1.c1.rada.gov.ua/pls/zweb_n/webproc4_1?id=&pf3511=41484
 
-# From Vladimir in Moscow via Alois Treindl re Kiev time 1991/2 (2014-02-28):
+# From Vladimir in Moscow via Alois Treindl re Kyiv time 1991/2 (2014-02-28):
 # First in Ukraine they changed Time zone from UTC+3 to UTC+2 with DST:
 #       03 25 1990 02:00 -03.00 1       Time Zone 3 with DST
 #       07 01 1990 02:00 -02.00 1       Time Zone 2 with DST
@@ -4139,23 +3814,9 @@ Link	Europe/Istanbul	Asia/Istanbul	# Istanbul is in both continents.
 # * Ukrainian Government's Resolution of 20.03.1992, No. 139.
 # http://www.uazakon.com/documents/date_8u/pg_grcasa.htm
 
-# From Paul Eggert (2018-10-03):
-# As is usual in tzdb, Ukrainian zones use the most common English spellings.
-# For example, tzdb uses Europe/Kiev, as "Kiev" is the most common spelling in
-# English for Ukraine's capital, even though it is certainly wrong as a
-# transliteration of the Ukrainian "Київ".  This is similar to tzdb's use of
-# Europe/Prague, which is certainly wrong as a transliteration of the Czech
-# "Praha".  ("Kiev" came from old Slavic via Russian to English, and "Prague"
-# came from old Slavic via French to English, so the two cases have something
-# in common.)  Admittedly English-language spelling of Ukrainian names is
-# controversial, and some day "Kyiv" may become substantially more popular in
-# English; in the meantime, stick with the traditional English "Kiev" as that
-# means less disruption for our users.
-
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-# This represents most of Ukraine.  See above for the spelling of "Kiev".
-Zone Europe/Kiev	2:02:04 -	LMT	1880
-			2:02:04	-	KMT	1924 May  2 # Kiev Mean Time
+Zone Europe/Kyiv	2:02:04 -	LMT	1880
+			2:02:04	-	KMT	1924 May  2 # Kyiv Mean Time
 			2:00	-	EET	1930 Jun 21
 			3:00	-	MSK	1941 Sep 20
 			1:00	C-Eur	CE%sT	1943 Nov  6
@@ -4163,37 +3824,6 @@ Zone Europe/Kiev	2:02:04 -	LMT	1880
 			2:00	1:00	EEST	1991 Sep 29  3:00
 			2:00	C-Eur	EE%sT	1996 May 13
 			2:00	EU	EE%sT
-# Transcarpathia used CET 1990/1991.
-# "Uzhhorod" is the transliteration of the Rusyn/Ukrainian pronunciation, but
-# "Uzhgorod" is more common in English.
-Zone Europe/Uzhgorod	1:29:12 -	LMT	1890 Oct
-			1:00	-	CET	1940
-			1:00	C-Eur	CE%sT	1944 Oct
-			1:00	1:00	CEST	1944 Oct 26
-			1:00	-	CET	1945 Jun 29
-			3:00	Russia	MSK/MSD	1990
-			3:00	-	MSK	1990 Jul  1  2:00
-			1:00	-	CET	1991 Mar 31  3:00
-			2:00	-	EET	1992 Mar 20
-			2:00	C-Eur	EE%sT	1996 May 13
-			2:00	EU	EE%sT
-# Zaporozh'ye and eastern Lugansk oblasts observed DST 1990/1991.
-# "Zaporizhia" is the transliteration of the Ukrainian name, but
-# "Zaporozh'ye" is more common in English.  Use the common English
-# spelling, except omit the apostrophe as it is not allowed in
-# portable Posix file names.
-Zone Europe/Zaporozhye	2:20:40 -	LMT	1880
-			2:20	-	+0220	1924 May  2
-			2:00	-	EET	1930 Jun 21
-			3:00	-	MSK	1941 Aug 25
-			1:00	C-Eur	CE%sT	1943 Oct 25
-			3:00	Russia	MSK/MSD	1991 Mar 31  2:00
-			2:00	E-Eur	EE%sT	1992 Mar 20
-			2:00	C-Eur	EE%sT	1996 May 13
-			2:00	EU	EE%sT
-
-# Vatican City
-# See Europe/Rome.
 
 ###############################################################################
 

make/data/tzdata/iso3166.tab

@@ -26,13 +26,13 @@
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
-# From Paul Eggert (2015-05-02):
+# From Paul Eggert (2022-11-18):
 # This file contains a table of two-letter country codes.  Columns are
 # separated by a single tab.  Lines beginning with '#' are comments.
 # All text uses UTF-8 encoding.  The columns of the table are as follows:
 #
 # 1.  ISO 3166-1 alpha-2 country code, current as of
-#     ISO 3166-1 N976 (2018-11-06).  See: Updates on ISO 3166-1
+#     ISO 3166-1 N1087 (2022-09-02).  See: Updates on ISO 3166-1
 #     https://isotc.iso.org/livelink/livelink/Open/16944257
 # 2.  The usual English name for the coded region,
 #     chosen so that alphabetic sorting of subsets produces helpful lists.
@@ -261,7 +261,7 @@ SY	Syria
 SZ	Eswatini (Swaziland)
 TC	Turks & Caicos Is
 TD	Chad
-TF	French Southern & Antarctic Lands
+TF	French Southern Territories
 TG	Togo
 TH	Thailand
 TJ	Tajikistan

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 2022	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 1672185600 (2022-12-28 00:00:00 UTC)
+#expires 1687910400 (2023-06-28 00:00:00 UTC)
 
-#	Updated through IERS Bulletin C63
-#	File expires on:  28 December 2022
+#	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
@@ -845,14 +845,13 @@ 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
-Link America/Phoenix America/Creston
 
 # From Arthur David Olson (1988-02-13):
 # A writer from the Inter Tribal Council of Arizona, Inc.,
@@ -873,7 +872,7 @@ Link America/Phoenix America/Creston
 # 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
@@ -945,7 +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
@@ -965,7 +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
@@ -989,7 +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
@@ -1009,7 +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
@@ -1026,7 +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
@@ -1048,7 +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
@@ -1064,7 +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
@@ -1075,7 +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
@@ -1111,7 +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
@@ -1145,7 +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
@@ -1626,23 +1625,6 @@ Zone America/Moncton	-4:19:08 -	LMT	1883 Dec  9
 
 # 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
@@ -1663,17 +1645,6 @@ Zone America/Moncton	-4:19:08 -	LMT	1883 Dec  9
 
 # 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:
@@ -1681,10 +1652,8 @@ Zone America/Moncton	-4:19:08 -	LMT	1883 Dec  9
 #     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:
 #
@@ -1766,23 +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
@@ -1791,22 +1744,6 @@ 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
-Link America/Toronto America/Nassau
-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
 # For Atikokan see America/Panama.
 
 
@@ -2055,6 +1992,37 @@ Zone America/Fort_Nelson	-8:10:47 -	LMT	1884
 
 # Northwest Territories, Nunavut, Yukon
 
+# From Chris Walton (2022-11-06):
+# Whitehorse Star - Thursday April 22, 1965 - page 1
+# title: DST Starts Monday ...
+# https://www.newspapers.com/image/578587481/
+# The title of this first article is wrong and/or misleading.
+# Also, the start time shown in the  article is vague; it simply says "after
+# midnight" when it probably should have stated 2:00a.m....
+#
+# Whitehorse Star - Monday October 25, 1965 - page 15 ...
+# https://www.newspapers.com/image/578589147/
+# The 1965 Yukon Council minutes can be found here:
+# http://assets.yukonarchives.ca/PER_YG_06_1965_C20_S02_v1.pdf
+# ... I do not currently believe that NWT touched any of its clocks in 1965....
+#
+# Whitehorse Star - Thursday Feb 24,1966 - page 2
+# title: It's Time for YDT ...
+# https://www.newspapers.com/image/578575979/ ...
+# America/Whitehorse as a permanent change from UTC-9(YST) to
+# UTC-8(PST) at 00:00 on Sunday February 27, 1966....
+#
+# Whitehorse Star - Friday April 28,1972 - page 6
+# title: Daylight Saving Time for N.W.T....
+# https://www.newspapers.com/image/578701610/ ...
+# Nunavut and NWT zones ... DST starting in 1972.... Start and End ...
+# should be the same as the rest of Canada
+#
+#
+# From Paul Eggert (2022-11-06):
+# For now, assume Yukon's 1965-04-22 spring forward was 00:00 -> 02:00, as this
+# seems likely than 02:00 -> 04:00 and matches "after midnight".
+
 # From Paul Eggert (2006-03-22):
 # Dawson switched to PST in 1973.  Inuvik switched to MST in 1979.
 # Mathew Englander (1996-10-07) gives the following refs:
@@ -2169,6 +2137,13 @@ Zone America/Fort_Nelson	-8:10:47 -	LMT	1884
 # * Interpretation Act, RSY 2002, c 125
 # https://www.canlii.org/en/yk/laws/stat/rsy-2002-c-125/latest/rsy-2002-c-125.html
 
+# From Chris Walton (2022-11-06):
+# The 5th edition of the Atlas of Canada contains a time zone map that
+# shows both legislated and observed time zone boundaries.
+# All communities on Baffin Island are shown to be observing Eastern time.
+# The date on the map is 1984.
+# https://ftp.maps.canada.ca/pub/nrcan_rncan/raster/atlas_5_ed/eng/other/referencemaps/mcr4056.pdf
+
 # From Rives McDow (1999-09-04):
 # Nunavut ... moved ... to incorporate the whole territory into one time zone.
 # Nunavut moves to single time zone Oct. 31
@@ -2181,40 +2156,7 @@ Zone America/Fort_Nelson	-8:10:47 -	LMT	1884
 # From Paul Eggert (1999-09-20):
 # Basic Facts: The New Territory
 # http://www.nunavut.com/basicfacts/english/basicfacts_1territory.html
-# (1999) reports that Pangnirtung operates on eastern time,
-# and that Coral Harbour does not observe DST.  We don't know when
-# Pangnirtung switched to eastern time; we'll guess 1995.
-
-# From Rives McDow (1999-11-08):
-# On October 31, when the rest of Nunavut went to Central time,
-# Pangnirtung wobbled.  Here is the result of their wobble:
-#
-# The following businesses and organizations in Pangnirtung use Central Time:
-#
-#	First Air, Power Corp, Nunavut Construction, Health Center, RCMP,
-#	Eastern Arctic National Parks, A & D Specialist
-#
-# The following businesses and organizations in Pangnirtung use Eastern Time:
-#
-#	Hamlet office, All other businesses, Both schools, Airport operator
-#
-# This has made for an interesting situation there, which warranted the news.
-# No one there that I spoke with seems concerned, or has plans to
-# change the local methods of keeping time, as it evidently does not
-# really interfere with any activities or make things difficult locally.
-# They plan to celebrate New Year's turn-over twice, one hour apart,
-# so it appears that the situation will last at least that long.
-# The Nunavut Intergovernmental Affairs hopes that they will "come to
-# their senses", but the locals evidently don't see any problem with
-# the current state of affairs.
-
-# From Michaela Rodrigue, writing in the
-# Nunatsiaq News (1999-11-19):
-# http://www.nunatsiaqonline.ca/archives/nunavut991130/nvt91119_17.html
-# Clyde River, Pangnirtung and Sanikiluaq now operate with two time zones,
-# central - or Nunavut time - for government offices, and eastern time
-# for municipal offices and schools....  Igloolik [was similar but then]
-# made the switch to central time on Saturday, Nov. 6.
+# (1999) reports that ... Coral Harbour does not observe DST.
 
 # From Paul Eggert (2000-10-02):
 # Matthews and Vincent (1998) say the following, but we lack histories
@@ -2373,18 +2315,12 @@ Rule	NT_YK	1919	only	-	Nov	 1	0:00	0	S
 Rule	NT_YK	1942	only	-	Feb	 9	2:00	1:00	W # War
 Rule	NT_YK	1945	only	-	Aug	14	23:00u	1:00	P # Peace
 Rule	NT_YK	1945	only	-	Sep	30	2:00	0	S
-Rule	NT_YK	1965	only	-	Apr	lastSun	0:00	2:00	DD
-Rule	NT_YK	1965	only	-	Oct	lastSun	2:00	0	S
-Rule	NT_YK	1980	1986	-	Apr	lastSun	2:00	1:00	D
-Rule	NT_YK	1980	2006	-	Oct	lastSun	2:00	0	S
+Rule	NT_YK	1972	1986	-	Apr	lastSun	2:00	1:00	D
+Rule	NT_YK	1972	2006	-	Oct	lastSun	2:00	0	S
 Rule	NT_YK	1987	2006	-	Apr	Sun>=1	2:00	1:00	D
+Rule	Yukon	1965	only	-	Apr	lastSun	0:00	2:00	DD
+Rule	Yukon	1965	only	-	Oct	lastSun	2:00	0	S
 # Zone	NAME		STDOFF	RULES	FORMAT	[UNTIL]
-# aka Panniqtuuq
-Zone America/Pangnirtung 0	-	-00	1921 # trading post est.
-			-4:00	NT_YK	A%sT	1995 Apr Sun>=1  2:00
-			-5:00	Canada	E%sT	1999 Oct 31  2:00
-			-6:00	Canada	C%sT	2000 Oct 29  2:00
-			-5:00	Canada	E%sT
 # formerly Frobisher Bay
 Zone America/Iqaluit	0	-	-00	1942 Aug # Frobisher Bay est.
 			-5:00	NT_YK	E%sT	1999 Oct 31  2:00
@@ -2417,13 +2353,15 @@ Zone America/Inuvik	0	-	-00	1953 # Inuvik founded
 			-7:00	NT_YK	M%sT	1980
 			-7:00	Canada	M%sT
 Zone America/Whitehorse	-9:00:12 -	LMT	1900 Aug 20
-			-9:00	NT_YK	Y%sT	1967 May 28  0:00
-			-8:00	NT_YK	P%sT	1980
+			-9:00	NT_YK	Y%sT	1965
+			-9:00	Yukon	Y%sT	1966 Feb 27  0:00
+			-8:00	-	PST	1980
 			-8:00	Canada	P%sT	2020 Nov  1
 			-7:00	-	MST
 Zone America/Dawson	-9:17:40 -	LMT	1900 Aug 20
-			-9:00	NT_YK	Y%sT	1973 Oct 28  0:00
-			-8:00	NT_YK	P%sT	1980
+			-9:00	NT_YK	Y%sT	1965
+			-9:00	Yukon	Y%sT	1973 Oct 28  0:00
+			-8:00	-	PST	1980
 			-8:00	Canada	P%sT	2020 Nov  1
 			-7:00	-	MST
 
@@ -2639,7 +2577,23 @@ 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.
+
+# From Heitor David Pinto (2022-11-28):
+# Now the northern municipalities want to have the same time zone as the
+# respective neighboring cities in the US, for example Juárez in UTC-7 with
+# DST, matching El Paso, and Ojinaga in UTC-6 with DST, matching Presidio....
+# the president authorized the publication of the decree for November 29,
+# so the time change would occur on November 30 at 0:00.
+# http://puentelibre.mx/noticia/ciudad_juarez_cambio_horario_noviembre_2022/
+
 # 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
@@ -2652,89 +2606,108 @@ 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
 # Coahuila, Nuevo León, Tamaulipas (near US border)
 # This includes the following municipalities:
-#   in Coahuila: Ocampo, Acuña, Zaragoza, Jiménez, Piedras Negras, Nava,
-#     Guerrero, Hidalgo.
-#   in Nuevo León: Anáhuac, Los Aldama.
+#   in Coahuila: Acuña, Allende, Guerrero, Hidalgo, Jiménez, Morelos, Nava,
+#     Ocampo, Piedras Negras, Villa Unión, Zaragoza
+#   in Nuevo León: Anáhuac
 #   in Tamaulipas: Nuevo Laredo, Guerrero, Mier, Miguel Alemán, Camargo,
 #     Gustavo Díaz Ordaz, Reynosa, Río Bravo, Valle Hermoso, Matamoros.
-# 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
+# https://www.dof.gob.mx/nota_detalle.php?codigo=5670045&fecha=28/10/2022
+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
-# Chihuahua (near US border)
+# Chihuahua (near US border - western side)
 # 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
+# and Práxedis G Guerrero.
+# http://gaceta.diputados.gob.mx/PDF/65/2a022/nov/20221124-VII.pdf
+Zone America/Ciudad_Juarez -7:05:56 -	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	2022 Oct 30  2:00
+			-6:00	-	CST	2022 Nov 30  0:00
 			-7:00	US	M%sT
-# Chihuahua (away from US border)
-Zone America/Chihuahua	-7:04:20 -	LMT	1921 Dec 31 23:55:40
+# Chihuahua (near US border - eastern side)
+# The municipalities of Coyame del Sotol, Ojinaga, and Manuel Benavides.
+# http://gaceta.diputados.gob.mx/PDF/65/2a022/nov/20221124-VII.pdf
+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
-# Sonora
-Zone America/Hermosillo	-7:23:52 -	LMT	1921 Dec 31 23:36:08
+			-7:00	Mexico	M%sT	2010
+			-7:00	US	M%sT	2022 Oct 30  2:00
+			-6:00	-	CST	2022 Nov 30  0:00
+			-6:00	US	C%sT
+# Chihuahua (away from US border)
+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	2022 Oct 30  2:00
+			-6:00	-	CST
+# Sonora
+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	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	1999
 			-7:00	-	MST
 
+# Baja California Sur, Nayarit (except Bahía de Banderas), Sinaloa
+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	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
+
 # From Alexander Krivenyshev (2010-04-21):
 # According to news, Bahía de Banderas (Mexican state of Nayarit)
 # changed time zone UTC-7 to new time zone UTC-6 on April 4, 2010 (to
@@ -2762,25 +2735,10 @@ Zone America/Hermosillo	-7:23:52 -	LMT	1921 Dec 31 23:36:08
 # From Arthur David Olson (2010-05-01):
 # 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/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
-			-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
-			-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
@@ -2788,7 +2746,7 @@ 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
@@ -2825,23 +2783,19 @@ 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/Puerto_Rico.
-
-# The Bahamas
-# See America/Toronto.
-
-
 # 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.
@@ -2885,6 +2839,7 @@ 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]
+		#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
@@ -2945,10 +2900,10 @@ 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]
@@ -3043,21 +2998,16 @@ 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
 
-# Caribbean Netherlands
-# See America/Puerto_Rico.
-
-# 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
@@ -3069,6 +3019,7 @@ 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
@@ -3279,9 +3230,6 @@ 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/Puerto_Rico.
-
 # Dominican Republic
 
 # From Steffen Thorsen (2000-10-30):
@@ -3328,12 +3276,6 @@ 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/Puerto_Rico.
-
 # Guatemala
 #
 # From Gwillim Law (2006-04-22), after a heads-up from Oscar van Vlijmen:
@@ -3491,7 +3433,7 @@ 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.
@@ -3504,6 +3446,7 @@ 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
@@ -3518,9 +3461,6 @@ 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/Puerto_Rico.
-
 # Nicaragua
 #
 # This uses Shanks & Pottenger for times before 2005.
@@ -3586,44 +3526,39 @@ 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/Atikokan
-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
 			-4:00	-	AST	1942 May  3
 			-4:00	US	A%sT	1946
 			-4:00	-	AST
-Link America/Puerto_Rico America/Anguilla
-Link America/Puerto_Rico America/Antigua
-Link America/Puerto_Rico America/Aruba
-Link America/Puerto_Rico America/Curacao
-Link America/Puerto_Rico America/Blanc-Sablon	# Quebec (Lower North Shore)
-Link America/Puerto_Rico America/Dominica
-Link America/Puerto_Rico America/Grenada
-Link America/Puerto_Rico America/Guadeloupe
-Link America/Puerto_Rico America/Kralendijk	# Caribbean Netherlands
-Link America/Puerto_Rico America/Lower_Princes	# Sint Maarten
-Link America/Puerto_Rico America/Marigot	# St Martin (French part)
-Link America/Puerto_Rico America/Montserrat
-Link America/Puerto_Rico America/Port_of_Spain	# Trinidad & Tobago
-Link America/Puerto_Rico America/St_Barthelemy	# St Barthélemy
-Link America/Puerto_Rico America/St_Kitts	# St Kitts & Nevis
-Link America/Puerto_Rico America/St_Lucia
-Link America/Puerto_Rico America/St_Thomas	# Virgin Islands (US)
-Link America/Puerto_Rico America/St_Vincent
-Link America/Puerto_Rico America/Tortola	# Virgin Islands (UK)
-
-# St Kitts-Nevis
-# St Lucia
-# See America/Puerto_Rico.
 
 # St Pierre and Miquelon
 # There are too many St Pierres elsewhere, so we'll use 'Miquelon'.
@@ -3633,12 +3568,6 @@ 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/Puerto_Rico.
-
-# Sint Maarten
-# See America/Puerto_Rico.
-
 # Turks and Caicos
 #
 # From Chris Dunn in
@@ -3701,17 +3630,13 @@ 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
-# US Virgin Is
-# See America/Puerto_Rico.
-
-
 # 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
-# See America/Puerto_Rico.
-
 # 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):
@@ -1164,7 +1173,7 @@ 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 (2022-03-15):
+# 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".
@@ -1182,7 +1191,14 @@ Zone America/Rio_Branco	-4:31:12 -	LMT	1914
 # 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".
+# 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
@@ -1302,11 +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	-
@@ -1344,7 +1374,9 @@ 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]
@@ -1357,9 +1389,9 @@ Zone America/Santiago	-4:42:45 -	LMT	1890
 			-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
@@ -1371,7 +1403,8 @@ Zone America/Punta_Arenas -4:43:40 -	LMT	1890
 			-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
@@ -1405,28 +1438,25 @@ 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."
 
+# From Alois Treindl (2022-11-10):
+# End of time change in Colombia 1993 ... should be 6 February 24h ...
+# DECRETO 267 DE 1993
+# https://www.suin-juriscol.gov.co/viewDocument.asp?ruta=Decretos/1061335
+
 # 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	-
+Rule	CO	1992	only	-	May	 3	 0:00	1:00	-
+Rule	CO	1993	only	-	Feb	 6	24:00	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
-# See America/Puerto_Rico.
-#
-# 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"....
-# From Paul Eggert (2021-09-29):
-# These backward-compatibility links now are in the 'northamerica' file.
 
 # Ecuador
 #
@@ -1742,9 +1772,6 @@ Zone America/Paramaribo	-3:40:40 -	LMT	1911
 			-3:30	-	-0330	1984 Oct
 			-3:00	-	-03
 
-# Trinidad and Tobago
-# See America/Puerto_Rico.
-
 # Uruguay
 # From Paul Eggert (1993-11-18):
 # Uruguay wins the prize for the strangest peacetime manipulation of the rules.

make/data/tzdata/zone.tab

@@ -137,13 +137,9 @@ 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	+6344-06828	America/Iqaluit	Eastern - NU (most areas)
 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)
@@ -153,7 +149,7 @@ 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)
@@ -303,17 +299,18 @@ MT	+3554+01431	Europe/Malta
 MU	-2010+05730	Indian/Mauritius
 MV	+0410+07330	Indian/Maldives
 MW	-1547+03500	Africa/Blantyre
-MX	+1924-09909	America/Mexico_City	Central Time
-MX	+2105-08646	America/Cancun	Eastern Standard Time - Quintana Roo
-MX	+2058-08937	America/Merida	Central Time - Campeche, Yucatan
-MX	+2540-10019	America/Monterrey	Central Time - Durango; Coahuila, Nuevo Leon, Tamaulipas (most areas)
-MX	+2550-09730	America/Matamoros	Central Time US - Coahuila, Nuevo Leon, Tamaulipas (US border)
-MX	+2313-10625	America/Mazatlan	Mountain Time - Baja California Sur, Nayarit, Sinaloa
-MX	+2838-10605	America/Chihuahua	Mountain Time - Chihuahua (most areas)
-MX	+2934-10425	America/Ojinaga	Mountain Time US - Chihuahua (US border)
-MX	+2904-11058	America/Hermosillo	Mountain Standard Time - Sonora
-MX	+3232-11701	America/Tijuana	Pacific Time US - Baja California
-MX	+2048-10515	America/Bahia_Banderas	Central Time - Bahia de Banderas
+MX	+1924-09909	America/Mexico_City	Central Mexico
+MX	+2105-08646	America/Cancun	Quintana Roo
+MX	+2058-08937	America/Merida	Campeche, Yucatan
+MX	+2540-10019	America/Monterrey	Durango; Coahuila, Nuevo Leon, Tamaulipas (most areas)
+MX	+2550-09730	America/Matamoros	Coahuila, Nuevo Leon, Tamaulipas (US border)
+MX	+2838-10605	America/Chihuahua	Chihuahua (most areas)
+MX	+3144-10629	America/Ciudad_Juarez	Chihuahua (US border - west)
+MX	+2934-10425	America/Ojinaga	Chihuahua (US border - east)
+MX	+2313-10625	America/Mazatlan	Baja California Sur, Nayarit (most areas), Sinaloa
+MX	+2048-10515	America/Bahia_Banderas	Bahia de Banderas
+MX	+2904-11058	America/Hermosillo	Sonora
+MX	+3232-11701	America/Tijuana	Baja California
 MY	+0310+10142	Asia/Kuala_Lumpur	Malaysia (peninsula)
 MY	+0133+11020	Asia/Kuching	Sabah, Sarawak
 MZ	-2558+03235	Africa/Maputo
@@ -423,9 +420,7 @@ 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

@@ -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=1.34
+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/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 \
@@ -135,6 +136,36 @@ ifeq ($(TOOLCHAIN_TYPE), gcc)
   LIBAWT_CFLAGS += -fgcse-after-reload
 endif
 
+# Setup NVDA a11y announcer
+ifeq ($(call isTargetOs, windows), true)
+  A11Y_NVDA_ANNOUNCING_CFLAGS := -DNO_A11Y_NVDA_ANNOUNCING
+  A11Y_NVDA_ANNOUNCING_LIBS :=
+  A11Y_NVDA_ANNOUNCING_DEPENDENCIES :=
+
+  ifeq ($(ENABLE_HEADLESS_ONLY), false)
+    ifeq ($(A11Y_NVDA_ANNOUNCING_ENABLED), true)
+      A11Y_NVDA_ANNOUNCING_CFLAGS := $(NVDACONTROLLERCLIENT_CFLAGS)
+      A11Y_NVDA_ANNOUNCING_LIBS := $(NVDACONTROLLERCLIENT_LIB)
+      A11Y_NVDA_ANNOUNCING_DEPENDENCIES := $(NVDACONTROLLERCLIENT_DLL)
+    endif
+  endif
+
+  LIBAWT_CFLAGS += $(A11Y_NVDA_ANNOUNCING_CFLAGS)
+endif
+
+# Setup the client for the JAWS screen reader
+ifeq ($(call isTargetOs, windows), true)
+  A11Y_JAWS_ANNOUNCING_CFLAGS := -DNO_A11Y_JAWS_ANNOUNCING
+
+  ifeq ($(ENABLE_HEADLESS_ONLY), false)
+    ifeq ($(A11Y_JAWS_ANNOUNCING_ENABLED), true)
+      A11Y_JAWS_ANNOUNCING_CFLAGS :=
+    endif
+  endif
+
+  LIBAWT_CFLAGS += $(A11Y_JAWS_ANNOUNCING_CFLAGS)
+endif
+
 $(eval $(call SetupJdkLibrary, BUILD_LIBAWT, \
     NAME := awt, \
     EXTRA_SRC := $(LIBAWT_EXTRA_SRC), \
@@ -150,7 +181,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBAWT, \
     DISABLED_WARNINGS_microsoft := 4244 4267 4996, \
     LDFLAGS := $(LDFLAGS_JDKLIB) $(call SET_SHARED_LIBRARY_ORIGIN), \
     LDFLAGS_macosx := -L$(INSTALL_LIBRARIES_HERE), \
-    LDFLAGS_windows := -delayload:user32.dll -delayload:gdi32.dll \
+    LDFLAGS_windows := -delayload:user32.dll -delayload:gdi32.dll -delayload:gdiplus.dll \
         -delayload:shell32.dll -delayload:winmm.dll \
         -delayload:winspool.drv -delayload:imm32.dll \
         -delayload:ole32.dll -delayload:comdlg32.dll \
@@ -165,10 +196,10 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBAWT, \
         -framework JavaRuntimeSupport \
         -framework ApplicationServices \
         -framework AudioToolbox, \
-    LIBS_windows := kernel32.lib user32.lib gdi32.lib winspool.lib \
+    LIBS_windows := kernel32.lib user32.lib gdi32.lib gdiplus.lib winspool.lib \
         imm32.lib ole32.lib uuid.lib shell32.lib \
         comdlg32.lib winmm.lib comctl32.lib shlwapi.lib \
-        delayimp.lib jvm.lib $(WIN_JAVA_LIB) advapi32.lib dwmapi.lib, \
+        delayimp.lib jvm.lib $(WIN_JAVA_LIB) advapi32.lib dwmapi.lib $(A11Y_NVDA_ANNOUNCING_LIBS), \
     VERSIONINFO_RESOURCE := $(LIBAWT_VERSIONINFO_RESOURCE), \
     EXTRA_RCFLAGS := $(LIBAWT_RCFLAGS), \
 ))
@@ -179,6 +210,18 @@ ifeq ($(call isTargetOs, macosx), true)
   $(BUILD_LIBAWT): $(BUILD_LIBMLIB_IMAGE)
 endif
 
+ifeq ($(call isTargetOs, windows)+$(ENABLE_HEADLESS_ONLY)+$(A11Y_NVDA_ANNOUNCING_ENABLED), true+false+true)
+  $(eval $(call SetupCopyFiles, COPY_NVDA_DEPENDENCIES, \
+      FILES := $(A11Y_NVDA_ANNOUNCING_DEPENDENCIES), \
+      DEST := $(BUILD_LIBAWT_OUTPUT_DIR), \
+  ))
+
+  $(COPY_NVDA_DEPENDENCIES): $(A11Y_NVDA_ANNOUNCING_DEPENDENCIES)
+  $(BUILD_LIBAWT): $(COPY_NVDA_DEPENDENCIES)
+
+  TARGETS += $(COPY_NVDA_DEPENDENCIES)
+endif
+
 TARGETS += $(BUILD_LIBAWT)
 
 ################################################################################
@@ -192,6 +235,18 @@ ifeq ($(call isTargetOs, windows macosx), false)
         common/font \
         #
 
+    ifeq ($(A11Y_SPEECHD_ANNOUNCING_ENABLED), true)
+        A11Y_SPEECHD_ANNOUNCING_CFLAGS :=
+    else
+        A11Y_SPEECHD_ANNOUNCING_CFLAGS := -DNO_A11Y_SPEECHD_ANNOUNCING
+    endif
+
+    ifeq ($(call isTargetOs, linux), true)
+        LIBAWT_XAWT_EXTRA_SRC += \
+            $(TOPDIR)/src/$(MODULE)/linux/native/libawt_xawt \
+            #
+    endif
+
     LIBAWT_XAWT_EXCLUDES := medialib debug
 
     LIBAWT_XAWT_EXTRA_HEADER_DIRS := \
@@ -207,7 +262,10 @@ ifeq ($(call isTargetOs, windows macosx), false)
 
     LIBAWT_XAWT_CFLAGS += -DXAWT -DXAWT_HACK \
         $(FONTCONFIG_CFLAGS) \
-        $(CUPS_CFLAGS)
+        $(CUPS_CFLAGS) \
+        $(SPEECHD_CFLAGS) \
+        $(A11Y_SPEECHD_ANNOUNCING_CFLAGS) \
+        #
 
     ifeq ($(call isTargetOs, linux), true)
       ifeq ($(DISABLE_XRENDER), true)
@@ -215,7 +273,7 @@ ifeq ($(call isTargetOs, windows macosx), false)
       endif
     endif
 
-    LIBAWT_XAWT_LIBS := $(LIBM) -lawt -lXext -lX11 -lXrender $(LIBDL) -lXtst -lXi -ljava -ljvm
+    LIBAWT_XAWT_LIBS := $(LIBM) -lawt -lXext -lX11 -lXrender $(SPEECHD_LIBS) $(LIBDL) -lXtst -lXi -ljava -ljvm
 
     ifeq ($(call isTargetOs, linux), true)
       LIBAWT_XAWT_LIBS += -lpthread
@@ -298,7 +356,7 @@ $(eval $(call SetupJdkLibrary, BUILD_LIBLCMS, \
     HEADERS_FROM_SRC := $(LIBLCMS_HEADERS_FROM_SRC), \
     DISABLED_WARNINGS_gcc := format-nonliteral type-limits \
         misleading-indentation undef unused-function stringop-truncation, \
-    DISABLED_WARNINGS_clang := tautological-compare format-nonliteral undef, \
+    DISABLED_WARNINGS_clang := unused-but-set-parameter tautological-compare format-nonliteral undef, \
     DISABLED_WARNINGS_microsoft := 4819, \
     LDFLAGS := $(LDFLAGS_JDKLIB) \
         $(call SET_SHARED_LIBRARY_ORIGIN), \
@@ -474,6 +532,7 @@ endif
 LIBFONTMANAGER_EXTRA_HEADER_DIRS := \
     libharfbuzz \
     common/awt \
+    common/awt/utility \
     common/font \
     libawt/java2d \
     libawt/java2d/pipe \
@@ -564,6 +623,7 @@ ifeq ($(call isTargetOs, windows), true)
   LIBJAWT_EXTRA_HEADER_DIRS := \
       include \
       common/awt/debug \
+      common/awt/utility \
       libawt/awt/image/cvutils \
       libawt/java2d \
       libawt/java2d/windows \
@@ -659,6 +719,8 @@ ifeq ($(ENABLE_HEADLESS_ONLY), false)
       common/awt/systemscale \
       #
 
+  LIBSPLASHSCREEN_HEADER_DIRS += common/awt/utility
+
   ifeq ($(USE_EXTERNAL_LIBGIF), false)
     LIBSPLASHSCREEN_HEADER_DIRS += libsplashscreen/giflib
   else
@@ -683,6 +745,7 @@ ifeq ($(ENABLE_HEADLESS_ONLY), false)
 
   ifeq ($(USE_EXTERNAL_LIBZ), false)
     LIBSPLASHSCREEN_EXTRA_SRC += java.base:libzip/zlib
+    LIBZ_DISABLED_WARNINGS_CLANG := format-nonliteral
   endif
 
   ifeq ($(call isTargetOs, macosx), true)
@@ -752,7 +815,7 @@ ifeq ($(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), \

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.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/scripts/compare.sh

@@ -42,6 +42,7 @@ if [ "$OPENJDK_TARGET_OS" = "macosx" ]; then
     LDD_CMD="$OTOOL -L"
     DIS_CMD="$OTOOL -v -V -t"
     STAT_PRINT_SIZE="-f %z"
+    STRIP="$STRIP -no_code_signature_warning"
 elif [ "$OPENJDK_TARGET_OS" = "windows" ]; then
     FULLDUMP_CMD="$DUMPBIN -all"
     LDD_CMD="$DUMPBIN -dependents"
@@ -674,14 +675,22 @@ compare_bin_file() {
     ORIG_THIS_FILE="$THIS_FILE"
     ORIG_OTHER_FILE="$OTHER_FILE"
 
-    if [ "$STRIP_ALL" = "true" ] || [[ "$STRIP_BEFORE_COMPARE" = *"$BIN_FILE"* ]]; then
+    if [ "$STRIP_ALL" = "true" ] || [[ "$STRIP_BEFORE_COMPARE" = *"$BIN_FILE"* ]] \
+           || [ "$OPENJDK_TARGET_OS" = "macosx" ]; then
         THIS_STRIPPED_FILE=$FILE_WORK_DIR/this/$NAME
         OTHER_STRIPPED_FILE=$FILE_WORK_DIR/other/$NAME
         $MKDIR -p $FILE_WORK_DIR/this $FILE_WORK_DIR/other
         $CP $THIS_FILE $THIS_STRIPPED_FILE
         $CP $OTHER_FILE $OTHER_STRIPPED_FILE
-        $STRIP $THIS_STRIPPED_FILE
-        $STRIP $OTHER_STRIPPED_FILE
+        if [ "$STRIP_ALL" = "true" ] || [[ "$STRIP_BEFORE_COMPARE" = *"$BIN_FILE"* ]]; then
+            $STRIP $THIS_STRIPPED_FILE
+            $STRIP $OTHER_STRIPPED_FILE
+        fi
+        # On macosx, always remove any signature before comparing
+        if [ "$OPENJDK_TARGET_OS" = "macosx" ]; then
+            $CODESIGN --remove-signature $THIS_STRIPPED_FILE
+            $CODESIGN --remove-signature $OTHER_STRIPPED_FILE
+        fi
         THIS_FILE="$THIS_STRIPPED_FILE"
         OTHER_FILE="$OTHER_STRIPPED_FILE"
     fi

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
@@ -298,6 +299,19 @@ 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//'/'/'\'}"

src/hotspot/cpu/aarch64/aarch64.ad

@@ -1279,12 +1279,12 @@ class HandlerImpl {
   static int emit_deopt_handler(CodeBuffer& cbuf);
 
   static uint size_exception_handler() {
-    return MacroAssembler::far_branch_size();
+    return MacroAssembler::far_codestub_branch_size();
   }
 
   static uint size_deopt_handler() {
     // count one adr and one far branch instruction
-    return 4 * NativeInstruction::instruction_size;
+    return NativeInstruction::instruction_size + MacroAssembler::far_codestub_branch_size();
   }
 };
 
@@ -2358,7 +2358,7 @@ int HandlerImpl::emit_deopt_handler(CodeBuffer& cbuf)
   __ adr(lr, __ pc());
   __ far_jump(RuntimeAddress(SharedRuntime::deopt_blob()->unpack()));
 
-  assert(__ offset() - offset <= (int) size_deopt_handler(), "overflow");
+  assert(__ offset() - offset == (int) size_deopt_handler(), "overflow");
   __ end_a_stub();
   return offset;
 }
@@ -3105,16 +3105,30 @@ encode %{
                  rscratch1, stlrb);
   %}
 
+  enc_class aarch64_enc_stlrb0(memory mem) %{
+    MOV_VOLATILE(zr, $mem$$base, $mem$$index, $mem$$scale, $mem$$disp,
+                 rscratch1, stlrb);
+  %}
+
   enc_class aarch64_enc_stlrh(iRegI src, memory mem) %{
     MOV_VOLATILE(as_Register($src$$reg), $mem$$base, $mem$$index, $mem$$scale, $mem$$disp,
                  rscratch1, stlrh);
   %}
 
+  enc_class aarch64_enc_stlrh0(memory mem) %{
+    MOV_VOLATILE(zr, $mem$$base, $mem$$index, $mem$$scale, $mem$$disp,
+                 rscratch1, stlrh);
+  %}
+
   enc_class aarch64_enc_stlrw(iRegI src, memory mem) %{
     MOV_VOLATILE(as_Register($src$$reg), $mem$$base, $mem$$index, $mem$$scale, $mem$$disp,
                  rscratch1, stlrw);
   %}
 
+  enc_class aarch64_enc_stlrw0(memory mem) %{
+    MOV_VOLATILE(zr, $mem$$base, $mem$$index, $mem$$scale, $mem$$disp,
+                 rscratch1, stlrw);
+  %}
 
   enc_class aarch64_enc_ldarsbw(iRegI dst, memory mem) %{
     Register dst_reg = as_Register($dst$$reg);
@@ -3205,6 +3219,11 @@ encode %{
                  rscratch1, stlr);
   %}
 
+  enc_class aarch64_enc_stlr0(memory mem) %{
+    MOV_VOLATILE(zr, $mem$$base, $mem$$index, $mem$$scale, $mem$$disp,
+                 rscratch1, stlr);
+  %}
+
   enc_class aarch64_enc_fstlrs(vRegF src, memory mem) %{
     {
       C2_MacroAssembler _masm(&cbuf);
@@ -3913,19 +3932,15 @@ encode %{
     __ bind(object_has_monitor);
     STATIC_ASSERT(markWord::monitor_value <= INT_MAX);
     __ add(tmp, tmp, -(int)markWord::monitor_value); // monitor
-    __ ldr(rscratch1, Address(tmp, ObjectMonitor::owner_offset_in_bytes()));
     __ ldr(disp_hdr, Address(tmp, ObjectMonitor::recursions_offset_in_bytes()));
 
     Label notRecursive;
-    __ cmp(rscratch1, rthread);
-    __ br(Assembler::NE, cont);
-
     __ cbz(disp_hdr, notRecursive);
 
     // Recursive lock
     __ sub(disp_hdr, disp_hdr, 1u);
     __ str(disp_hdr, Address(tmp, ObjectMonitor::recursions_offset_in_bytes()));
-    // flag == EQ was set in the ownership check above
+    __ cmp(disp_hdr, disp_hdr); // Sets flags for result
     __ b(cont);
 
     __ bind(notRecursive);
@@ -4295,6 +4310,16 @@ operand immI_65535()
   interface(CONST_INTER);
 %}
 
+operand immI_positive()
+%{
+  predicate(n->get_int() > 0);
+  match(ConI);
+
+  op_cost(0);
+  format %{ %}
+  interface(CONST_INTER);
+%}
+
 operand immL_255()
 %{
   predicate(n->get_long() == 255L);
@@ -8109,6 +8134,18 @@ instruct storeB_volatile(iRegIorL2I src, /* sync_memory*/indirect mem)
   ins_pipe(pipe_class_memory);
 %}
 
+instruct storeimmB0_volatile(immI0 zero, /* sync_memory*/indirect mem)
+%{
+  match(Set mem (StoreB mem zero));
+
+  ins_cost(VOLATILE_REF_COST);
+  format %{ "stlrb  zr, $mem\t# byte" %}
+
+  ins_encode(aarch64_enc_stlrb0(mem));
+
+  ins_pipe(pipe_class_memory);
+%}
+
 // Store Char/Short
 instruct storeC_volatile(iRegIorL2I src, /* sync_memory*/indirect mem)
 %{
@@ -8122,6 +8159,18 @@ instruct storeC_volatile(iRegIorL2I src, /* sync_memory*/indirect mem)
   ins_pipe(pipe_class_memory);
 %}
 
+instruct storeimmC0_volatile(immI0 zero, /* sync_memory*/indirect mem)
+%{
+  match(Set mem (StoreC mem zero));
+
+  ins_cost(VOLATILE_REF_COST);
+  format %{ "stlrh  zr, $mem\t# short" %}
+
+  ins_encode(aarch64_enc_stlrh0(mem));
+
+  ins_pipe(pipe_class_memory);
+%}
+
 // Store Integer
 
 instruct storeI_volatile(iRegIorL2I src, /* sync_memory*/indirect mem)
@@ -8136,6 +8185,18 @@ instruct storeI_volatile(iRegIorL2I src, /* sync_memory*/indirect mem)
   ins_pipe(pipe_class_memory);
 %}
 
+instruct storeimmI0_volatile(immI0 zero, /* sync_memory*/indirect mem)
+%{
+  match(Set mem(StoreI mem zero));
+
+  ins_cost(VOLATILE_REF_COST);
+  format %{ "stlrw  zr, $mem\t# int" %}
+
+  ins_encode(aarch64_enc_stlrw0(mem));
+
+  ins_pipe(pipe_class_memory);
+%}
+
 // Store Long (64 bit signed)
 instruct storeL_volatile(iRegL src, /* sync_memory*/indirect mem)
 %{
@@ -8149,6 +8210,18 @@ instruct storeL_volatile(iRegL src, /* sync_memory*/indirect mem)
   ins_pipe(pipe_class_memory);
 %}
 
+instruct storeimmL0_volatile(immL0 zero, /* sync_memory*/indirect mem)
+%{
+  match(Set mem (StoreL mem zero));
+
+  ins_cost(VOLATILE_REF_COST);
+  format %{ "stlr  zr, $mem\t# int" %}
+
+  ins_encode(aarch64_enc_stlr0(mem));
+
+  ins_pipe(pipe_class_memory);
+%}
+
 // Store Pointer
 instruct storeP_volatile(iRegP src, /* sync_memory*/indirect mem)
 %{
@@ -8162,6 +8235,18 @@ instruct storeP_volatile(iRegP src, /* sync_memory*/indirect mem)
   ins_pipe(pipe_class_memory);
 %}
 
+instruct storeimmP0_volatile(immP0 zero, /* sync_memory*/indirect mem)
+%{
+  match(Set mem (StoreP mem zero));
+
+  ins_cost(VOLATILE_REF_COST);
+  format %{ "stlr  zr, $mem\t# ptr" %}
+
+  ins_encode(aarch64_enc_stlr0(mem));
+
+  ins_pipe(pipe_class_memory);
+%}
+
 // Store Compressed Pointer
 instruct storeN_volatile(iRegN src, /* sync_memory*/indirect mem)
 %{
@@ -8175,6 +8260,18 @@ instruct storeN_volatile(iRegN src, /* sync_memory*/indirect mem)
   ins_pipe(pipe_class_memory);
 %}
 
+instruct storeimmN0_volatile(immN0 zero, /* sync_memory*/indirect mem)
+%{
+  match(Set mem (StoreN mem zero));
+
+  ins_cost(VOLATILE_REF_COST);
+  format %{ "stlrw  zr, $mem\t# compressed ptr" %}
+
+  ins_encode(aarch64_enc_stlrw0(mem));
+
+  ins_pipe(pipe_class_memory);
+%}
+
 // Store Float
 instruct storeF_volatile(vRegF src, /* sync_memory*/indirect mem)
 %{
@@ -11318,6 +11415,108 @@ instruct regI_not_reg(iRegINoSp dst,
   ins_pipe(ialu_reg);
 %}
 
+// This pattern is automatically generated from aarch64_ad.m4
+// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
+instruct NegI_reg_URShift_reg(iRegINoSp dst,
+                              immI0 zero, iRegIorL2I src1, immI src2) %{
+  match(Set dst (SubI zero (URShiftI src1 src2)));
+
+  ins_cost(1.9 * INSN_COST);
+  format %{ "negw  $dst, $src1, LSR $src2" %}
+
+  ins_encode %{
+    __ negw(as_Register($dst$$reg), as_Register($src1$$reg),
+            Assembler::LSR, $src2$$constant & 0x1f);
+  %}
+
+  ins_pipe(ialu_reg_shift);
+%}
+
+// This pattern is automatically generated from aarch64_ad.m4
+// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
+instruct NegI_reg_RShift_reg(iRegINoSp dst,
+                              immI0 zero, iRegIorL2I src1, immI src2) %{
+  match(Set dst (SubI zero (RShiftI src1 src2)));
+
+  ins_cost(1.9 * INSN_COST);
+  format %{ "negw  $dst, $src1, ASR $src2" %}
+
+  ins_encode %{
+    __ negw(as_Register($dst$$reg), as_Register($src1$$reg),
+            Assembler::ASR, $src2$$constant & 0x1f);
+  %}
+
+  ins_pipe(ialu_reg_shift);
+%}
+
+// This pattern is automatically generated from aarch64_ad.m4
+// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
+instruct NegI_reg_LShift_reg(iRegINoSp dst,
+                              immI0 zero, iRegIorL2I src1, immI src2) %{
+  match(Set dst (SubI zero (LShiftI src1 src2)));
+
+  ins_cost(1.9 * INSN_COST);
+  format %{ "negw  $dst, $src1, LSL $src2" %}
+
+  ins_encode %{
+    __ negw(as_Register($dst$$reg), as_Register($src1$$reg),
+            Assembler::LSL, $src2$$constant & 0x1f);
+  %}
+
+  ins_pipe(ialu_reg_shift);
+%}
+
+// This pattern is automatically generated from aarch64_ad.m4
+// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
+instruct NegL_reg_URShift_reg(iRegLNoSp dst,
+                              immL0 zero, iRegL src1, immI src2) %{
+  match(Set dst (SubL zero (URShiftL src1 src2)));
+
+  ins_cost(1.9 * INSN_COST);
+  format %{ "neg  $dst, $src1, LSR $src2" %}
+
+  ins_encode %{
+    __ neg(as_Register($dst$$reg), as_Register($src1$$reg),
+            Assembler::LSR, $src2$$constant & 0x3f);
+  %}
+
+  ins_pipe(ialu_reg_shift);
+%}
+
+// This pattern is automatically generated from aarch64_ad.m4
+// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
+instruct NegL_reg_RShift_reg(iRegLNoSp dst,
+                              immL0 zero, iRegL src1, immI src2) %{
+  match(Set dst (SubL zero (RShiftL src1 src2)));
+
+  ins_cost(1.9 * INSN_COST);
+  format %{ "neg  $dst, $src1, ASR $src2" %}
+
+  ins_encode %{
+    __ neg(as_Register($dst$$reg), as_Register($src1$$reg),
+            Assembler::ASR, $src2$$constant & 0x3f);
+  %}
+
+  ins_pipe(ialu_reg_shift);
+%}
+
+// This pattern is automatically generated from aarch64_ad.m4
+// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
+instruct NegL_reg_LShift_reg(iRegLNoSp dst,
+                              immL0 zero, iRegL src1, immI src2) %{
+  match(Set dst (SubL zero (LShiftL src1 src2)));
+
+  ins_cost(1.9 * INSN_COST);
+  format %{ "neg  $dst, $src1, LSL $src2" %}
+
+  ins_encode %{
+    __ neg(as_Register($dst$$reg), as_Register($src1$$reg),
+            Assembler::LSL, $src2$$constant & 0x3f);
+  %}
+
+  ins_pipe(ialu_reg_shift);
+%}
+
 // This pattern is automatically generated from aarch64_ad.m4
 // DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
 instruct AndI_reg_not_reg(iRegINoSp dst,
@@ -14997,18 +15196,22 @@ instruct clearArray_reg_reg(iRegL_R11 cnt, iRegP_R10 base, Universe dummy, rFlag
   ins_pipe(pipe_class_memory);
 %}
 
-instruct clearArray_imm_reg(immL cnt, iRegP_R10 base, Universe dummy, rFlagsReg cr)
+instruct clearArray_imm_reg(immL cnt, iRegP_R10 base, iRegL_R11 temp, Universe dummy, rFlagsReg cr)
 %{
   predicate((uint64_t)n->in(2)->get_long()
             < (uint64_t)(BlockZeroingLowLimit >> LogBytesPerWord));
   match(Set dummy (ClearArray cnt base));
-  effect(USE_KILL base);
+  effect(TEMP temp, USE_KILL base, KILL cr);
 
   ins_cost(4 * INSN_COST);
   format %{ "ClearArray $cnt, $base" %}
 
   ins_encode %{
-    __ zero_words($base$$Register, (uint64_t)$cnt$$constant);
+    address tpc = __ zero_words($base$$Register, (uint64_t)$cnt$$constant);
+    if (tpc == NULL) {
+      ciEnv::current()->record_failure("CodeCache is full");
+      return;
+    }
   %}
 
   ins_pipe(pipe_class_memory);
@@ -15060,10 +15263,10 @@ instruct overflowAddL_reg_imm(rFlagsReg cr, iRegL op1, immLAddSub op2)
 %{
   match(Set cr (OverflowAddL op1 op2));
 
-  format %{ "cmn   $op1, $op2\t# overflow check long" %}
+  format %{ "adds  zr, $op1, $op2\t# overflow check long" %}
   ins_cost(INSN_COST);
   ins_encode %{
-    __ cmn($op1$$Register, $op2$$constant);
+    __ adds(zr, $op1$$Register, $op2$$constant);
   %}
 
   ins_pipe(icmp_reg_imm);

src/hotspot/cpu/aarch64/aarch64_ad.m4

@@ -52,6 +52,24 @@ instruct $2$1_reg_$4_reg(iReg$1NoSp dst,
   ins_pipe(ialu_reg_reg_shift);
 %}
 ')dnl
+define(`NEG_SHIFT_INSN',
+`// This pattern is automatically generated from aarch64_ad.m4
+// DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
+instruct Neg$1_reg_$2_reg(iReg$1NoSp dst,
+                              imm$1`0' zero, iReg$1`'ORL2I($1) src1, immI src2) %{
+  match(Set dst (Sub$1 zero ($2$1 src1 src2)));
+
+  ins_cost(1.9 * INSN_COST);
+  format %{ "ifelse($1, I, negw, neg)  $dst, $src1, $3 $src2" %}
+
+  ins_encode %{
+    __ ifelse($1, I, negw, neg)(as_Register($dst$$reg), as_Register($src1$$reg),
+            Assembler::$3, $src2$$constant & ifelse($1,I,0x1f,0x3f));
+  %}
+
+  ins_pipe(ialu_reg_shift);
+%}
+')dnl
 define(`BASE_INVERTED_INSN',
 `// This pattern is automatically generated from aarch64_ad.m4
 // DO NOT EDIT ANYTHING IN THIS SECTION OF THE FILE
@@ -126,6 +144,11 @@ define(`BOTH_SHIFT_INSNS',
 `BASE_SHIFT_INSN(I, $1, ifelse($2,andr,andw,$2w), $3, $4)
 BASE_SHIFT_INSN(L, $1, $2, $3, $4)')dnl
 dnl
+define(`BOTH_NEG_SHIFT_INSNS',
+`NEG_SHIFT_INSN($1, URShift, LSR)
+NEG_SHIFT_INSN($1, RShift, ASR)
+NEG_SHIFT_INSN($1, LShift, LSL)')dnl
+dnl
 define(`BOTH_INVERTED_INSNS',
 `BASE_INVERTED_INSN(I, $1, $2w, $3, $4)
 BASE_INVERTED_INSN(L, $1, $2, $3, $4)')dnl
@@ -151,6 +174,8 @@ BOTH_INVERTED_SHIFT_INSNS($1, $2, LShift, LSL)')dnl
 dnl
 NOT_INSN(L, eon)
 NOT_INSN(I, eonw)
+BOTH_NEG_SHIFT_INSNS(I)
+BOTH_NEG_SHIFT_INSNS(L)
 BOTH_INVERTED_INSNS(And, bic)
 BOTH_INVERTED_INSNS(Or, orn)
 BOTH_INVERTED_INSNS(Xor, eon)

src/hotspot/cpu/aarch64/aarch64_neon.ad

@@ -3103,16 +3103,14 @@ instruct replicate2L(vecX dst, iRegL src)
   ins_pipe(vdup_reg_reg128);
 %}
 
-instruct replicate2L_zero(vecX dst, immI0 zero)
+instruct replicate2L_imm(vecX dst, immL con)
 %{
   predicate(UseSVE == 0 && n->as_Vector()->length() == 2);
-  match(Set dst (ReplicateI zero));
+  match(Set dst (ReplicateL con));
   ins_cost(INSN_COST);
-  format %{ "movi  $dst, $zero\t# vector (4I)" %}
+  format %{ "movi  $dst, $con\t# vector (2L)" %}
   ins_encode %{
-    __ eor(as_FloatRegister($dst$$reg), __ T16B,
-           as_FloatRegister($dst$$reg),
-           as_FloatRegister($dst$$reg));
+    __ mov(as_FloatRegister($dst$$reg), __ T2D, $con$$constant);
   %}
   ins_pipe(vmovi_reg_imm128);
 %}
@@ -3124,8 +3122,7 @@ instruct replicate2F(vecD dst, vRegF src)
   ins_cost(INSN_COST);
   format %{ "dup  $dst, $src\t# vector (2F)" %}
   ins_encode %{
-    __ dup(as_FloatRegister($dst$$reg), __ T2S,
-           as_FloatRegister($src$$reg));
+    __ dup(as_FloatRegister($dst$$reg), __ T2S, as_FloatRegister($src$$reg));
   %}
   ins_pipe(vdup_reg_freg64);
 %}
@@ -3137,8 +3134,7 @@ instruct replicate4F(vecX dst, vRegF src)
   ins_cost(INSN_COST);
   format %{ "dup  $dst, $src\t# vector (4F)" %}
   ins_encode %{
-    __ dup(as_FloatRegister($dst$$reg), __ T4S,
-           as_FloatRegister($src$$reg));
+    __ dup(as_FloatRegister($dst$$reg), __ T4S, as_FloatRegister($src$$reg));
   %}
   ins_pipe(vdup_reg_freg128);
 %}
@@ -3150,8 +3146,7 @@ instruct replicate2D(vecX dst, vRegD src)
   ins_cost(INSN_COST);
   format %{ "dup  $dst, $src\t# vector (2D)" %}
   ins_encode %{
-    __ dup(as_FloatRegister($dst$$reg), __ T2D,
-           as_FloatRegister($src$$reg));
+    __ dup(as_FloatRegister($dst$$reg), __ T2D, as_FloatRegister($src$$reg));
   %}
   ins_pipe(vdup_reg_dreg128);
 %}
@@ -4428,7 +4423,7 @@ instruct vsll16B_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsra8B_imm(vecD dst, vecD src, immI shift) %{
+instruct vsra8B_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4 ||
             n->as_Vector()->length() == 8);
   match(Set dst (RShiftVB src (RShiftCntV shift)));
@@ -4443,7 +4438,7 @@ instruct vsra8B_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsra16B_imm(vecX dst, vecX src, immI shift) %{
+instruct vsra16B_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 16);
   match(Set dst (RShiftVB src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4457,7 +4452,7 @@ instruct vsra16B_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrl8B_imm(vecD dst, vecD src, immI shift) %{
+instruct vsrl8B_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4 ||
             n->as_Vector()->length() == 8);
   match(Set dst (URShiftVB src (RShiftCntV shift)));
@@ -4477,7 +4472,7 @@ instruct vsrl8B_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsrl16B_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrl16B_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 16);
   match(Set dst (URShiftVB src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4632,7 +4627,7 @@ instruct vsll8S_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsra4S_imm(vecD dst, vecD src, immI shift) %{
+instruct vsra4S_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2 ||
             n->as_Vector()->length() == 4);
   match(Set dst (RShiftVS src (RShiftCntV shift)));
@@ -4647,7 +4642,7 @@ instruct vsra4S_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsra8S_imm(vecX dst, vecX src, immI shift) %{
+instruct vsra8S_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 8);
   match(Set dst (RShiftVS src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4661,7 +4656,7 @@ instruct vsra8S_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrl4S_imm(vecD dst, vecD src, immI shift) %{
+instruct vsrl4S_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2 ||
             n->as_Vector()->length() == 4);
   match(Set dst (URShiftVS src (RShiftCntV shift)));
@@ -4681,7 +4676,7 @@ instruct vsrl4S_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsrl8S_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrl8S_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 8);
   match(Set dst (URShiftVS src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4820,7 +4815,7 @@ instruct vsll4I_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsra2I_imm(vecD dst, vecD src, immI shift) %{
+instruct vsra2I_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (RShiftVI src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4833,7 +4828,7 @@ instruct vsra2I_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsra4I_imm(vecX dst, vecX src, immI shift) %{
+instruct vsra4I_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4);
   match(Set dst (RShiftVI src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4846,7 +4841,7 @@ instruct vsra4I_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrl2I_imm(vecD dst, vecD src, immI shift) %{
+instruct vsrl2I_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (URShiftVI src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4859,7 +4854,7 @@ instruct vsrl2I_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsrl4I_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrl4I_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4);
   match(Set dst (URShiftVI src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4932,7 +4927,7 @@ instruct vsll2L_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsra2L_imm(vecX dst, vecX src, immI shift) %{
+instruct vsra2L_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (RShiftVL src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4945,7 +4940,7 @@ instruct vsra2L_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrl2L_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrl2L_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (URShiftVL src (RShiftCntV shift)));
   ins_cost(INSN_COST);
@@ -4958,7 +4953,7 @@ instruct vsrl2L_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsraa8B_imm(vecD dst, vecD src, immI shift) %{
+instruct vsraa8B_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 8);
   match(Set dst (AddVB dst (RShiftVB src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -4972,7 +4967,7 @@ instruct vsraa8B_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsraa16B_imm(vecX dst, vecX src, immI shift) %{
+instruct vsraa16B_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 16);
   match(Set dst (AddVB dst (RShiftVB src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -4986,7 +4981,7 @@ instruct vsraa16B_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsraa4S_imm(vecD dst, vecD src, immI shift) %{
+instruct vsraa4S_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4);
   match(Set dst (AddVS dst (RShiftVS src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5000,7 +4995,7 @@ instruct vsraa4S_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsraa8S_imm(vecX dst, vecX src, immI shift) %{
+instruct vsraa8S_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 8);
   match(Set dst (AddVS dst (RShiftVS src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5014,7 +5009,7 @@ instruct vsraa8S_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsraa2I_imm(vecD dst, vecD src, immI shift) %{
+instruct vsraa2I_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (AddVI dst (RShiftVI src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5027,7 +5022,7 @@ instruct vsraa2I_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsraa4I_imm(vecX dst, vecX src, immI shift) %{
+instruct vsraa4I_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4);
   match(Set dst (AddVI dst (RShiftVI src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5040,7 +5035,7 @@ instruct vsraa4I_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsraa2L_imm(vecX dst, vecX src, immI shift) %{
+instruct vsraa2L_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (AddVL dst (RShiftVL src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5053,7 +5048,7 @@ instruct vsraa2L_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrla8B_imm(vecD dst, vecD src, immI shift) %{
+instruct vsrla8B_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 8);
   match(Set dst (AddVB dst (URShiftVB src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5068,7 +5063,7 @@ instruct vsrla8B_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsrla16B_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrla16B_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 16);
   match(Set dst (AddVB dst (URShiftVB src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5083,7 +5078,7 @@ instruct vsrla16B_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrla4S_imm(vecD dst, vecD src, immI shift) %{
+instruct vsrla4S_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4);
   match(Set dst (AddVS dst (URShiftVS src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5098,7 +5093,7 @@ instruct vsrla4S_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsrla8S_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrla8S_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 8);
   match(Set dst (AddVS dst (URShiftVS src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5113,7 +5108,7 @@ instruct vsrla8S_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrla2I_imm(vecD dst, vecD src, immI shift) %{
+instruct vsrla2I_imm(vecD dst, vecD src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (AddVI dst (URShiftVI src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5126,7 +5121,7 @@ instruct vsrla2I_imm(vecD dst, vecD src, immI shift) %{
   ins_pipe(vshift64_imm);
 %}
 
-instruct vsrla4I_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrla4I_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 4);
   match(Set dst (AddVI dst (URShiftVI src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -5139,7 +5134,7 @@ instruct vsrla4I_imm(vecX dst, vecX src, immI shift) %{
   ins_pipe(vshift128_imm);
 %}
 
-instruct vsrla2L_imm(vecX dst, vecX src, immI shift) %{
+instruct vsrla2L_imm(vecX dst, vecX src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == 2);
   match(Set dst (AddVL dst (URShiftVL src (RShiftCntV shift))));
   ins_cost(INSN_COST);

src/hotspot/cpu/aarch64/aarch64_neon_ad.m4

@@ -1463,55 +1463,54 @@ VFABD(fabd, fabd, 2, F, D, S, 64)
 VFABD(fabd, fabd, 4, F, X, S, 128)
 VFABD(fabd, fabd, 2, D, X, D, 128)
 dnl
-define(`VREPLICATE', `
-instruct replicate$3$4$5`'(vec$6 dst, $7 ifelse($7, immI0, zero, $7, immI, con, src))
+define(`VREPLICATE_REG', `
+instruct replicate$2$3`'(vec$4 dst, $5 src)
 %{
-  predicate(ifelse($8, UseSVE == 0 && , $8,
-                   $8, , , $8`
-            ')n->as_Vector()->length() == $3);
-  match(Set dst (Replicate`'ifelse($7, immI0, I, $4) ifelse($7, immI0, zero, $7, immI, con, $7, zero, I, src)));
+  predicate(ifelse($7, UseSVE == 0 && , $7,
+                   $7, , , $7`
+            ')n->as_Vector()->length() == $2);
+  match(Set dst (Replicate$3 src));
   ins_cost(INSN_COST);
-  format %{ "$1  $dst, $ifelse($7, immI0, zero, $7, immI, con, src)`\t# vector ('ifelse($4$7, SimmI, $3H, $2, eor, 4I, $3$4)`)"' %}
+  format %{ "dup  $dst, $src\t# vector ($2$3)" %}
   ins_encode %{
-    __ $2(as_FloatRegister($dst$$reg), __ ifelse(
-            $2, eor, T16B, T$3`'$9),ifelse(
-            `$4 $7', `B immI', ` '$con$$constant & 0xff,
-            `$4 $7', `S immI', ` '$con$$constant & 0xffff,
-            `$4 $7', `I immI', ` '$con$$constant,
-            `$2', eor,`
-           as_FloatRegister($dst$$reg),
-           as_FloatRegister($dst$$reg)',
-            `$7', vRegF,`
-           as_FloatRegister($src$$reg)',
-            `$7', vRegD,`
-           as_FloatRegister($src$$reg)',
-           ` 'as_Register($src$$reg)));
+    __ dup(as_FloatRegister($dst$$reg), __ T$2$1, $6($src$$reg));
   %}
-  ins_pipe(ifelse($7, immI0, v$1_reg_imm,
-                  $7, immI,  v$1_reg_imm,
-                  $7, iRegIorL2I, v$1_reg_reg,
-                  $7, zero, vmovi_reg_imm,
-                  $7, iRegL, vdup_reg_reg,
-                  $4, F, vdup_reg_freg, vdup_reg_dreg)`'ifelse($6, X, 128, 64));
+  ins_pipe(ifelse($5, iRegIorL2I, vdup_reg_reg,
+                  $5, iRegL, vdup_reg_reg,
+                  $3, F, vdup_reg_freg, vdup_reg_dreg)`'ifelse($4, X, 128, 64));
 %}')dnl
-dnl        $1    $2    $3  $4 $5     $6 $7          $8                                $9
-VREPLICATE(dup,  dup,  8,  B, ,      D, iRegIorL2I, n->as_Vector()->length() == 4 ||, B)
-VREPLICATE(dup,  dup,  16, B, ,      X, iRegIorL2I, UseSVE == 0 && ,                  B)
-VREPLICATE(movi, mov,  8,  B, _imm,  D, immI,       n->as_Vector()->length() == 4 ||, B)
-VREPLICATE(movi, mov,  16, B, _imm,  X, immI,       UseSVE == 0 && ,                  B)
-VREPLICATE(dup,  dup,  4,  S, ,      D, iRegIorL2I, n->as_Vector()->length() == 2 ||, H)
-VREPLICATE(dup,  dup,  8,  S, ,      X, iRegIorL2I, UseSVE == 0 && ,                  H)
-VREPLICATE(movi, mov,  4,  S, _imm,  D, immI,       n->as_Vector()->length() == 2 ||, H)
-VREPLICATE(movi, mov,  8,  S,  _imm, X, immI,       UseSVE == 0 && ,                  H)
-VREPLICATE(dup,  dup,  2,  I, ,      D, iRegIorL2I, ,                                 S)
-VREPLICATE(dup,  dup,  4,  I, ,      X, iRegIorL2I, UseSVE == 0 && ,                  S)
-VREPLICATE(movi, mov,  2,  I, _imm,  D, immI,       ,                                 S)
-VREPLICATE(movi, mov,  4,  I,  _imm, X, immI,       UseSVE == 0 && ,                  S)
-VREPLICATE(dup,  dup,  2,  L, ,      X, iRegL,      UseSVE == 0 && ,                  D)
-VREPLICATE(movi, eor,  2,  L, _zero, X, immI0,      UseSVE == 0 && ,                  D)
-VREPLICATE(dup,  dup,  2,  F, ,      D, vRegF,      ,                                 S)
-VREPLICATE(dup,  dup,  4,  F, ,      X, vRegF,      UseSVE == 0 && ,                  S)
-VREPLICATE(dup,  dup,  2,  D, ,      X, vRegD,      UseSVE == 0 && ,                  D)
+define(`VREPLICATE_IMM', `
+instruct replicate$2$3_imm`'(vec$4 dst, $5 con)
+%{
+  predicate(ifelse($7, UseSVE == 0 && , $7,
+                   $7, , , $7`
+            ')n->as_Vector()->length() == $2);
+  match(Set dst (Replicate$3 con));
+  ins_cost(INSN_COST);
+  format %{ "movi  $dst, $con\t`#' vector ($2`'ifelse($3, S, H, $3))" %}
+  ins_encode %{
+    __ mov(as_FloatRegister($dst$$reg), __ T$2`'iTYPE2SIMD($3), $con$$constant`'$6);
+  %}
+  ins_pipe(vmovi_reg_imm`'ifelse($4, X, 128, 64));
+%}')dnl
+dnl            $1 $2  $3 $4 $5          $6                $7
+VREPLICATE_REG(B, 8,  B, D, iRegIorL2I, as_Register,      n->as_Vector()->length() == 4 ||)
+VREPLICATE_REG(B, 16, B, X, iRegIorL2I, as_Register,      UseSVE == 0 && )
+VREPLICATE_IMM(B, 8,  B, D, immI,       ` & 0xff',        n->as_Vector()->length() == 4 ||)
+VREPLICATE_IMM(B, 16, B, X, immI,       ` & 0xff',        UseSVE == 0 && )
+VREPLICATE_REG(H, 4,  S, D, iRegIorL2I, as_Register,      n->as_Vector()->length() == 2 ||)
+VREPLICATE_REG(H, 8,  S, X, iRegIorL2I, as_Register,      UseSVE == 0 && )
+VREPLICATE_IMM(H, 4,  S, D, immI,       ` & 0xffff',      n->as_Vector()->length() == 2 ||)
+VREPLICATE_IMM(H, 8,  S, X, immI,       ` & 0xffff',      UseSVE == 0 && )
+VREPLICATE_REG(S, 2,  I, D, iRegIorL2I, as_Register,      )
+VREPLICATE_REG(S, 4,  I, X, iRegIorL2I, as_Register,      UseSVE == 0 && )
+VREPLICATE_IMM(S, 2,  I, D, immI,       ,                 )
+VREPLICATE_IMM(S, 4,  I, X, immI,       ,                 UseSVE == 0 && )
+VREPLICATE_REG(D, 2,  L, X, iRegL,      as_Register,      UseSVE == 0 && )
+VREPLICATE_IMM(D, 2,  L, X, immL,       ,                 UseSVE == 0 && )
+VREPLICATE_REG(S, 2,  F, D, vRegF,      as_FloatRegister, )
+VREPLICATE_REG(S, 4,  F, X, vRegF,      as_FloatRegister, UseSVE == 0 && )
+VREPLICATE_REG(D, 2,  D, X, vRegD,      as_FloatRegister, UseSVE == 0 && )
 dnl
 
 // ====================REDUCTION ARITHMETIC====================================
@@ -1992,7 +1991,7 @@ instruct vsll$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
   ins_pipe(vshift`'ifelse($6, D, 64, 128)_imm);
 %}')dnl
 define(`VSRA_IMM', `
-instruct vsra$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
+instruct vsra$3$4_imm`'(vec$6 dst, vec$6 src, immI_positive shift) %{
   predicate(ifelse($3$4, 8B, n->as_Vector()->length() == 4 ||`
             ',
   $3$4, 4S, n->as_Vector()->length() == 2 ||`
@@ -2017,7 +2016,7 @@ instruct vsra$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
 %}')dnl
 dnl
 define(`VSRL_IMM', `
-instruct vsrl$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
+instruct vsrl$3$4_imm`'(vec$6 dst, vec$6 src, immI_positive shift) %{
   predicate(ifelse($3$4, 8B, n->as_Vector()->length() == 4 ||`
             ',
   $3$4, 4S, n->as_Vector()->length() == 2 ||`
@@ -2052,7 +2051,7 @@ instruct vsrl$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
 %}')dnl
 dnl
 define(`VSRLA_IMM', `
-instruct vsrla$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
+instruct vsrla$3$4_imm`'(vec$6 dst, vec$6 src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == $3);
   match(Set dst (AddV$4 dst (URShiftV$4 src (RShiftCntV shift))));
   ins_cost(INSN_COST);
@@ -2076,7 +2075,7 @@ instruct vsrla$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
 %}')dnl
 dnl
 define(`VSRAA_IMM', `
-instruct vsraa$3$4_imm`'(vec$6 dst, vec$6 src, immI shift) %{
+instruct vsraa$3$4_imm`'(vec$6 dst, vec$6 src, immI_positive shift) %{
   predicate(n->as_Vector()->length() == $3);
   match(Set dst (AddV$4 dst (RShiftV$4 src (RShiftCntV shift))));
   ins_cost(INSN_COST);

src/hotspot/cpu/aarch64/assembler_aarch64.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2014, 2020 Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -313,6 +313,53 @@ bool Assembler::operand_valid_for_logical_immediate(bool is32, uint64_t imm) {
   return encode_logical_immediate(is32, imm) != 0xffffffff;
 }
 
+// Check immediate encoding for movi.
+// Return the shift amount which can be {0, 8, 16, 24} for B/H/S types. As the D type
+// movi does not have shift variant, in this case the return value is the immediate
+// after encoding.
+// Return -1 if the input imm64 can not be encoded.
+int Assembler::operand_valid_for_movi_immediate(uint64_t imm64, SIMD_Arrangement T) {
+  if (T == T1D || T == T2D) {
+     // To encode into movi, the 64-bit imm must be in the form of
+     // 'aaaaaaaabbbbbbbbccccccccddddddddeeeeeeeeffffffffgggggggghhhhhhhh'
+     // and encoded in "a:b:c:d:e:f:g:h".
+     uint64_t tmp = imm64;
+     uint64_t one_byte = 0;
+     for (int i = 0; i < 8; i++) {
+       one_byte = tmp & 0xffULL;
+       if (one_byte != 0xffULL && one_byte != 0) {
+         return -1; // can not be encoded
+       }
+       tmp = tmp >> 8;
+     }
+
+     imm64 &= 0x0101010101010101ULL;
+     imm64 |= (imm64 >> 7);
+     imm64 |= (imm64 >> 14);
+     imm64 |= (imm64 >> 28);
+
+     return imm64 & 0xff;
+  }
+
+  uint32_t imm32 = imm64 & 0xffffffffULL;
+  if (T == T8B || T == T16B) {       // 8-bit variant
+    if (0 == (imm32 & ~0xff))        return 0;
+  } else if(T == T4H || T == T8H) {  // 16-bit variant
+    if (0 == (imm32 & ~0xff))        return 0;
+    if (0 == (imm32 & ~0xff00))      return 8;
+  } else if (T == T2S || T == T4S) { // 32-bit variant
+    if (0 == (imm32 & ~0xff))        return 0;
+    if (0 == (imm32 & ~0xff00))      return 8;
+    if (0 == (imm32 & ~0xff0000))    return 16;
+    if (0 == (imm32 & ~0xff000000))  return 24;
+  } else {
+    assert(false, "unsupported");
+    ShouldNotReachHere();
+  }
+
+  return -1;
+}
+
 static uint64_t doubleTo64Bits(jdouble d) {
   union {
     jdouble double_value;

src/hotspot/cpu/aarch64/assembler_aarch64.hpp

@@ -476,16 +476,17 @@ class Address {
           assert(size == 0, "bad size");
           size = 0b100;
         }
+        assert(offset_ok_for_immed(_offset, size),
+               "must be, was: " INT64_FORMAT ", %d", _offset, size);
         unsigned mask = (1 << size) - 1;
-        if (_offset < 0 || _offset & mask)
-          {
-            i->f(0b00, 25, 24);
-            i->f(0, 21), i->f(0b00, 11, 10);
-            i->sf(_offset, 20, 12);
-          } else {
-            i->f(0b01, 25, 24);
-            i->f(_offset >> size, 21, 10);
-          }
+        if (_offset < 0 || _offset & mask) {
+          i->f(0b00, 25, 24);
+          i->f(0, 21), i->f(0b00, 11, 10);
+          i->sf(_offset, 20, 12);
+        } else {
+          i->f(0b01, 25, 24);
+          i->f(_offset >> size, 21, 10);
+        }
       }
       break;
 
@@ -3254,6 +3255,7 @@ public:
   static bool operand_valid_for_logical_immediate(bool is32, uint64_t imm);
   static bool operand_valid_for_add_sub_immediate(int64_t imm);
   static bool operand_valid_for_float_immediate(double imm);
+  static int  operand_valid_for_movi_immediate(uint64_t imm64, SIMD_Arrangement T);
 
   void emit_data64(jlong data, relocInfo::relocType rtype, int format = 0);
   void emit_data64(jlong data, RelocationHolder const& rspec, int format = 0);

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

@@ -30,8 +30,14 @@
 #include "asm/codeBuffer.hpp"
 #include "code/codeCache.hpp"
 
-
+// Check if an offset is within the encoding range for LDR/STR instructions
+// with an immediate offset, either using unscaled signed 9-bits or, scaled
+// unsigned 12-bits. We favour the scaled unsigned encoding for all aligned
+// offsets (only using the signed 9-bit encoding for negative and unaligned
+// offsets). As a precondition, 0 <= shift <= 4 is the log2(size), for the
+// supported data widths, {1, 2, 4, 8, 16} bytes.
 inline bool Address::offset_ok_for_immed(int64_t offset, uint shift) {
+  precond(shift < 5);
   uint mask = (1 << shift) - 1;
   if (offset < 0 || (offset & mask) != 0) {
     // Unscaled signed offset, encoded in a signed imm9 field.

src/hotspot/cpu/aarch64/c1_LIRAssembler_aarch64.cpp

@@ -187,14 +187,13 @@ Address LIR_Assembler::as_Address(LIR_Address* addr, Register tmp) {
       default:
         ShouldNotReachHere();
       }
-  } else  {
-    intptr_t addr_offset = intptr_t(addr->disp());
-    if (Address::offset_ok_for_immed(addr_offset, addr->scale()))
-      return Address(base, addr_offset, Address::lsl(addr->scale()));
-    else {
-      __ mov(tmp, addr_offset);
-      return Address(base, tmp, Address::lsl(addr->scale()));
-    }
+  } else {
+    assert(addr->scale() == 0,
+           "expected for immediate operand, was: %d", addr->scale());
+    ptrdiff_t offset = ptrdiff_t(addr->disp());
+    // NOTE: Does not handle any 16 byte vector access.
+    const uint type_size = type2aelembytes(addr->type(), true);
+    return __ legitimize_address(Address(base, offset), type_size, tmp);
   }
   return Address();
 }
@@ -283,10 +282,9 @@ void LIR_Assembler::osr_entry() {
         __ bind(L);
       }
 #endif
-      __ ldr(r19, Address(OSR_buf, slot_offset + 0));
+      __ ldp(r19, r20, Address(OSR_buf, slot_offset));
       __ str(r19, frame_map()->address_for_monitor_lock(i));
-      __ ldr(r19, Address(OSR_buf, slot_offset + 1*BytesPerWord));
-      __ str(r19, frame_map()->address_for_monitor_object(i));
+      __ str(r20, frame_map()->address_for_monitor_object(i));
     }
   }
 }

src/hotspot/cpu/aarch64/c1_LIRGenerator_aarch64.cpp

@@ -148,7 +148,7 @@ LIR_Address* LIRGenerator::generate_address(LIR_Opr base, LIR_Opr index,
   if (index->is_constant()) {
     LIR_Const *constant = index->as_constant_ptr();
     if (constant->type() == T_INT) {
-      large_disp += index->as_jint() << shift;
+      large_disp += ((intx)index->as_jint()) << shift;
     } else {
       assert(constant->type() == T_LONG, "should be");
       jlong c = index->as_jlong() << shift;
@@ -194,7 +194,7 @@ LIR_Address* LIRGenerator::generate_address(LIR_Opr base, LIR_Opr index,
   if (large_disp == 0 && index->is_register()) {
     return new LIR_Address(base, index, type);
   } else {
-    assert(Address::offset_ok_for_immed(large_disp, 0), "must be");
+    assert(Address::offset_ok_for_immed(large_disp, shift), "failed for large_disp: " INTPTR_FORMAT " and shift %d", large_disp, shift);
     return new LIR_Address(base, large_disp, type);
   }
 }
@@ -204,24 +204,7 @@ LIR_Address* LIRGenerator::emit_array_address(LIR_Opr array_opr, LIR_Opr index_o
   int offset_in_bytes = arrayOopDesc::base_offset_in_bytes(type);
   int elem_size = type2aelembytes(type);
   int shift = exact_log2(elem_size);
-
-  LIR_Address* addr;
-  if (index_opr->is_constant()) {
-    addr = new LIR_Address(array_opr,
-                           offset_in_bytes + (intx)(index_opr->as_jint()) * elem_size, type);
-  } else {
-    if (offset_in_bytes) {
-      LIR_Opr tmp = new_pointer_register();
-      __ add(array_opr, LIR_OprFact::intConst(offset_in_bytes), tmp);
-      array_opr = tmp;
-      offset_in_bytes = 0;
-    }
-    addr =  new LIR_Address(array_opr,
-                            index_opr,
-                            LIR_Address::scale(type),
-                            offset_in_bytes, type);
-  }
-  return addr;
+  return generate_address(array_opr, index_opr, shift, offset_in_bytes, type);
 }
 
 LIR_Opr LIRGenerator::load_immediate(int x, BasicType type) {
@@ -1132,8 +1115,8 @@ void LIRGenerator::do_NewInstance(NewInstance* x) {
   CodeEmitInfo* info = state_for(x, x->state());
   LIR_Opr reg = result_register_for(x->type());
   new_instance(reg, x->klass(), x->is_unresolved(),
-                       FrameMap::r2_oop_opr,
-                       FrameMap::r5_oop_opr,
+                       FrameMap::r10_oop_opr,
+                       FrameMap::r11_oop_opr,
                        FrameMap::r4_oop_opr,
                        LIR_OprFact::illegalOpr,
                        FrameMap::r3_metadata_opr, info);
@@ -1148,8 +1131,8 @@ void LIRGenerator::do_NewTypeArray(NewTypeArray* x) {
   length.load_item_force(FrameMap::r19_opr);
 
   LIR_Opr reg = result_register_for(x->type());
-  LIR_Opr tmp1 = FrameMap::r2_oop_opr;
-  LIR_Opr tmp2 = FrameMap::r4_oop_opr;
+  LIR_Opr tmp1 = FrameMap::r10_oop_opr;
+  LIR_Opr tmp2 = FrameMap::r11_oop_opr;
   LIR_Opr tmp3 = FrameMap::r5_oop_opr;
   LIR_Opr tmp4 = reg;
   LIR_Opr klass_reg = FrameMap::r3_metadata_opr;
@@ -1177,8 +1160,8 @@ void LIRGenerator::do_NewObjectArray(NewObjectArray* x) {
   CodeEmitInfo* info = state_for(x, x->state());
 
   LIR_Opr reg = result_register_for(x->type());
-  LIR_Opr tmp1 = FrameMap::r2_oop_opr;
-  LIR_Opr tmp2 = FrameMap::r4_oop_opr;
+  LIR_Opr tmp1 = FrameMap::r10_oop_opr;
+  LIR_Opr tmp2 = FrameMap::r11_oop_opr;
   LIR_Opr tmp3 = FrameMap::r5_oop_opr;
   LIR_Opr tmp4 = reg;
   LIR_Opr klass_reg = FrameMap::r3_metadata_opr;

src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 1999, 2021, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2014, Red Hat Inc. All rights reserved.
+ * Copyright (c) 2014, 2021, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -203,20 +203,24 @@ void C1_MacroAssembler::initialize_header(Register obj, Register klass, Register
 }
 
 // preserves obj, destroys len_in_bytes
-void C1_MacroAssembler::initialize_body(Register obj, Register len_in_bytes, int hdr_size_in_bytes, Register t1) {
+//
+// Scratch registers: t1 = r10, t2 = r11
+//
+void C1_MacroAssembler::initialize_body(Register obj, Register len_in_bytes, int hdr_size_in_bytes, Register t1, Register t2) {
   assert(hdr_size_in_bytes >= 0, "header size must be positive or 0");
+  assert(t1 == r10 && t2 == r11, "must be");
+
   Label done;
 
   // len_in_bytes is positive and ptr sized
   subs(len_in_bytes, len_in_bytes, hdr_size_in_bytes);
   br(Assembler::EQ, done);
 
-  // Preserve obj
-  if (hdr_size_in_bytes)
-    add(obj, obj, hdr_size_in_bytes);
-  zero_memory(obj, len_in_bytes, t1);
-  if (hdr_size_in_bytes)
-    sub(obj, obj, hdr_size_in_bytes);
+  // zero_words() takes ptr in r10 and count in words in r11
+  mov(rscratch1, len_in_bytes);
+  lea(t1, Address(obj, hdr_size_in_bytes));
+  lsr(t2, rscratch1, LogBytesPerWord);
+  zero_words(t1, t2);
 
   bind(done);
 }
@@ -231,6 +235,7 @@ void C1_MacroAssembler::allocate_object(Register obj, Register t1, Register t2,
   initialize_object(obj, klass, noreg, object_size * HeapWordSize, t1, t2, UseTLAB);
 }
 
+// Scratch registers: t1 = r10, t2 = r11
 void C1_MacroAssembler::initialize_object(Register obj, Register klass, Register var_size_in_bytes, int con_size_in_bytes, Register t1, Register t2, bool is_tlab_allocated) {
   assert((con_size_in_bytes & MinObjAlignmentInBytesMask) == 0,
          "con_size_in_bytes is not multiple of alignment");
@@ -241,45 +246,13 @@ void C1_MacroAssembler::initialize_object(Register obj, Register klass, Register
   if (!(UseTLAB && ZeroTLAB && is_tlab_allocated)) {
      // clear rest of allocated space
      const Register index = t2;
-     const int threshold = 16 * BytesPerWord;   // approximate break even point for code size (see comments below)
      if (var_size_in_bytes != noreg) {
        mov(index, var_size_in_bytes);
-       initialize_body(obj, index, hdr_size_in_bytes, t1);
-     } else if (con_size_in_bytes <= threshold) {
-       // use explicit null stores
-       int i = hdr_size_in_bytes;
-       if (i < con_size_in_bytes && (con_size_in_bytes % (2 * BytesPerWord))) {
-         str(zr, Address(obj, i));
-         i += BytesPerWord;
-       }
-       for (; i < con_size_in_bytes; i += 2 * BytesPerWord)
-         stp(zr, zr, Address(obj, i));
+       initialize_body(obj, index, hdr_size_in_bytes, t1, t2);
      } else if (con_size_in_bytes > hdr_size_in_bytes) {
-       block_comment("zero memory");
-      // use loop to null out the fields
-
-       int words = (con_size_in_bytes - hdr_size_in_bytes) / BytesPerWord;
-       mov(index,  words / 8);
-
-       const int unroll = 8; // Number of str(zr) instructions we'll unroll
-       int remainder = words % unroll;
-       lea(rscratch1, Address(obj, hdr_size_in_bytes + remainder * BytesPerWord));
-
-       Label entry_point, loop;
-       b(entry_point);
-
-       bind(loop);
-       sub(index, index, 1);
-       for (int i = -unroll; i < 0; i++) {
-         if (-i == remainder)
-           bind(entry_point);
-         str(zr, Address(rscratch1, i * wordSize));
-       }
-       if (remainder == 0)
-         bind(entry_point);
-       add(rscratch1, rscratch1, unroll * wordSize);
-       cbnz(index, loop);
-
+       con_size_in_bytes -= hdr_size_in_bytes;
+       lea(t1, Address(obj, hdr_size_in_bytes));
+       zero_words(t1, con_size_in_bytes / BytesPerWord);
      }
   }
 
@@ -314,8 +287,7 @@ void C1_MacroAssembler::allocate_array(Register obj, Register len, Register t1,
   initialize_header(obj, klass, len, t1, t2);
 
   // clear rest of allocated space
-  const Register len_zero = len;
-  initialize_body(obj, arr_size, header_size * BytesPerWord, len_zero);
+  initialize_body(obj, arr_size, header_size * BytesPerWord, t1, t2);
 
   membar(StoreStore);
 

src/hotspot/cpu/aarch64/c1_MacroAssembler_aarch64.hpp

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2014, 2015, Red Hat Inc. All rights reserved.
+ * Copyright (c) 1999, 2021, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2021, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -48,7 +48,7 @@ using MacroAssembler::null_check;
   );
 
   void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
-  void initialize_body(Register obj, Register len_in_bytes, int hdr_size_in_bytes, Register t1);
+  void initialize_body(Register obj, Register len_in_bytes, int hdr_size_in_bytes, Register t1, Register t2);
 
   void float_cmp(bool is_float, int unordered_result,
                  FloatRegister f0, FloatRegister f1,

src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 1999, 2021, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2014, Red Hat Inc. All rights reserved.
+ * Copyright (c) 2014, 2021, Red Hat Inc. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -656,9 +656,9 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
         if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) &&
             !UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
           Label slow_path;
-          Register obj_size = r2;
-          Register t1       = r19;
-          Register t2       = r4;
+          Register obj_size = r19;
+          Register t1       = r10;
+          Register t2       = r11;
           assert_different_registers(klass, obj, obj_size, t1, t2);
 
           __ stp(r19, zr, Address(__ pre(sp, -2 * wordSize)));
@@ -769,9 +769,9 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
         // allocations.
         // Otherwise, just go to the slow path.
         if (!UseTLAB && Universe::heap()->supports_inline_contig_alloc()) {
-          Register arr_size = r4;
-          Register t1       = r2;
-          Register t2       = r5;
+          Register arr_size = r5;
+          Register t1       = r10;
+          Register t2       = r11;
           Label slow_path;
           assert_different_registers(length, klass, obj, arr_size, t1, t2);
 
@@ -801,7 +801,7 @@ OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) {
           __ andr(t1, t1, Klass::_lh_header_size_mask);
           __ sub(arr_size, arr_size, t1);  // body length
           __ add(t1, t1, obj);       // body start
-          __ initialize_body(t1, arr_size, 0, t2);
+          __ initialize_body(t1, arr_size, 0, t1, t2);
           __ membar(Assembler::StoreStore);
           __ verify_oop(obj);
 

src/hotspot/cpu/aarch64/frame_aarch64.cpp

@@ -350,13 +350,9 @@ frame frame::sender_for_entry_frame(RegisterMap* map) const {
   assert(jfa->last_Java_sp() > sp(), "must be above this frame on stack");
   // Since we are walking the stack now this nested anchor is obviously walkable
   // even if it wasn't when it was stacked.
-  if (!jfa->walkable()) {
-    // Capture _last_Java_pc (if needed) and mark anchor walkable.
-    jfa->capture_last_Java_pc();
-  }
+  jfa->make_walkable();
   map->clear();
   assert(map->include_argument_oops(), "should be set by clear");
-  vmassert(jfa->last_Java_pc() != NULL, "not walkable");
   frame fr(jfa->last_Java_sp(), jfa->last_Java_fp(), jfa->last_Java_pc());
 
   return fr;
@@ -817,20 +813,14 @@ frame::frame(void* sp, void* fp, void* pc) {
 void frame::pd_ps() {}
 #endif
 
-void JavaFrameAnchor::make_walkable(JavaThread* thread) {
+void JavaFrameAnchor::make_walkable() {
   // last frame set?
   if (last_Java_sp() == NULL) return;
   // already walkable?
   if (walkable()) return;
-  vmassert(Thread::current() == (Thread*)thread, "not current thread");
   vmassert(last_Java_sp() != NULL, "not called from Java code?");
   vmassert(last_Java_pc() == NULL, "already walkable");
-  capture_last_Java_pc();
+  _last_Java_pc = (address)_last_Java_sp[-1];
   vmassert(walkable(), "something went wrong");
 }
 
-void JavaFrameAnchor::capture_last_Java_pc() {
-  vmassert(_last_Java_sp != NULL, "no last frame set");
-  vmassert(_last_Java_pc == NULL, "already walkable");
-  _last_Java_pc = (address)_last_Java_sp[-1];
-}

src/hotspot/cpu/aarch64/frame_aarch64.inline.hpp

@@ -144,10 +144,12 @@ inline intptr_t* frame::id(void) const { return unextended_sp(); }
 inline bool frame::is_older(intptr_t* id) const   { assert(this->id() != NULL && id != NULL, "NULL frame id");
                                                     return this->id() > id ; }
 
-
-
 inline intptr_t* frame::link() const              { return (intptr_t*) *(intptr_t **)addr_at(link_offset); }
 
+inline intptr_t* frame::link_or_null() const {
+  intptr_t** ptr = (intptr_t **)addr_at(link_offset);
+  return os::is_readable_pointer(ptr) ? *ptr : NULL;
+}
 
 inline intptr_t* frame::unextended_sp() const     { return _unextended_sp; }
 

src/hotspot/cpu/aarch64/globals_aarch64.hpp

@@ -106,7 +106,7 @@ define_pd_global(intx, InlineSmallCode,          1000);
           "Use DC ZVA for block zeroing")                               \
   product(intx, BlockZeroingLowLimit, 256,                              \
           "Minimum size in bytes when block zeroing will be used")      \
-          range(1, max_jint)                                            \
+          range(wordSize, max_jint)                                     \
   product(bool, TraceTraps, false, "Trace all traps the signal handler")\
   product(int, SoftwarePrefetchHintDistance, -1,                        \
           "Use prfm hint with specified distance in compiled code."     \