fix: truncate single log file upon reopening (#1143)

LWP can help identifying the corresponding thread in a debugger more easily.

.bazelci/presubmit.yml

@@ -1,6 +1,8 @@
 ---
-platforms:
+tasks:
   ubuntu1804:
+    name: "Ubuntu 22.04"
+    platform: ubuntu2204
     build_flags:
     - "--features=layering_check"
     - "--copt=-Werror"
@@ -12,6 +14,8 @@ platforms:
     test_targets:
     - "//..."
   macos:
+    name: "macOS: latest Xcode"
+    platform: macos
     build_flags:
     - "--features=layering_check"
     - "--copt=-Werror"
@@ -22,8 +26,9 @@ platforms:
     - "--copt=-Werror"
     test_targets:
     - "//..."
-  windows:
-    # Optional: use VS 2017 instead of 2015.
+  windows-msvc:
+    name: "Windows: MSVC 2017"
+    platform: windows
     environment:
       BAZEL_VC: "C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\BuildTools\\VC"
     build_flags:
@@ -36,3 +41,22 @@ platforms:
     - "--copt=/WX"
     test_targets:
     - "//..."
+  windows-clang-cl:
+    name: "Windows: Clang"
+    platform: windows
+    environment:
+      BAZEL_VC: "C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\BuildTools\\VC"
+    build_flags:
+    - "--extra_toolchains=@local_config_cc//:cc-toolchain-x64_windows-clang-cl"
+    - "--extra_execution_platforms=//:x64_windows-clang-cl"
+    - "--compiler=clang-cl"
+    - "--features=layering_check"
+    build_targets:
+    - "//..."
+    test_flags:
+    - "--extra_toolchains=@local_config_cc//:cc-toolchain-x64_windows-clang-cl"
+    - "--extra_execution_platforms=//:x64_windows-clang-cl"
+    - "--compiler=clang-cl"
+    - "--features=layering_check"
+    test_targets:
+    - "//..."

.clang-format

@@ -58,7 +58,7 @@ ConstructorInitializerIndentWidth: 4
 ContinuationIndentWidth: 4
 Cpp11BracedListStyle: true
 DeriveLineEnding: true
-DerivePointerAlignment: true
+DerivePointerAlignment: false
 DisableFormat:   false
 ExperimentalAutoDetectBinPacking: false
 FixNamespaceComments: true
@@ -84,7 +84,7 @@ IncludeIsMainRegex: '([-_](test|unittest))?$'
 IncludeIsMainSourceRegex: ''
 IndentCaseLabels: true
 IndentGotoLabels: true
-IndentPPDirectives: None
+IndentPPDirectives: AfterHash
 IndentWidth:     2
 IndentWrappedFunctionNames: false
 JavaScriptQuotes: Leave
@@ -157,7 +157,7 @@ SpacesInCStyleCastParentheses: false
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
 SpaceBeforeSquareBrackets: false
-Standard:        Auto
+Standard:        c++14
 StatementMacros:
   - Q_UNUSED
   - QT_REQUIRE_VERSION

.clang-tidy

@@ -1,8 +1,7 @@
 ---
-Checks:          'clang-diagnostic-*,clang-analyzer-*,google-*'
+Checks:          'clang-diagnostic-*,clang-analyzer-*,google-*,modernize-*,-modernize-use-trailing-return-type,readability-*,portability-*,performance-*,bugprone-*,android-*,darwin-*,clang-analyzer-*'
 WarningsAsErrors: ''
 HeaderFilterRegex: ''
-AnalyzeTemporaryDtors: false
 FormatStyle:     file
 CheckOptions:
   - key:             cert-dcl16-c.NewSuffixes

.github/dependabot.yml

@@ -0,0 +1,10 @@
+# Set update schedule for GitHub Actions
+
+version: 2
+updates:
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every week
+      interval: "weekly"

.github/workflows/android.yml

@@ -5,43 +5,58 @@ on: [push, pull_request]
 jobs:
   build-android:
     name: NDK-C++${{matrix.std}}-${{matrix.abi}}-${{matrix.build_type}}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
     defaults:
       run:
         shell: bash
+    env:
+      NDK_VERSION: 26.0.10792818
     strategy:
       fail-fast: true
       matrix:
-        std: [98, 11, 14, 17, 20]
+        std: [14, 17, 20]
         abi: [arm64-v8a, armeabi-v7a, x86_64, x86]
         build_type: [Debug, Release]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
-      - name: Setup Ninja
-        uses: ashutoshvarma/setup-ninja@master
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
         with:
-          version: 1.10.0
+          languages: cpp
 
-      - name: Setup C++98 Environment
-        if: matrix.std == '98'
+      - name: Setup Dependencies
         run: |
-          echo 'CXXFLAGS=-Wno-error=variadic-macros -Wno-error=long-long ${{env.CXXFLAGS}}' >> $GITHUB_ENV
+          sudo apt-get update
+          DEBIAN_FRONTEND=noninteractive sudo apt-get install -y \
+            cmake \
+            ninja-build
+
+      - name: Setup NDK
+        env:
+          ANDROID_SDK_ROOT: /usr/local/lib/android/sdk
+        run: |
+          echo 'y' | ${{env.ANDROID_SDK_ROOT}}/cmdline-tools/latest/bin/sdkmanager --install 'ndk;${{env.NDK_VERSION}}'
 
       - name: Configure
         env:
           CXXFLAGS: -Wall -Wextra -Wpedantic -Wsign-conversion -Wtautological-compare -Wformat-nonliteral -Wundef -Werror ${{env.CXXFLAGS}}
         run: |
           cmake -S . -B build_${{matrix.abi}} \
-                -DANDROID_ABI=${{matrix.abi}} \
-                -DANDROID_NATIVE_API_LEVEL=28 \
-                -DANDROID_STL=c++_shared \
+                -DCMAKE_ANDROID_API=28 \
+                -DCMAKE_ANDROID_ARCH_ABI=${{matrix.abi}} \
+                -DCMAKE_ANDROID_NDK=/usr/local/lib/android/sdk/ndk/${{env.NDK_VERSION}} \
+                -DCMAKE_ANDROID_STL_TYPE=c++_shared \
                 -DCMAKE_BUILD_TYPE=${{matrix.build_type}} \
                 -DCMAKE_CXX_EXTENSIONS=OFF \
                 -DCMAKE_CXX_STANDARD=${{matrix.std}} \
                 -DCMAKE_CXX_STANDARD_REQUIRED=ON \
-                -DCMAKE_TOOLCHAIN_FILE=${ANDROID_NDK_HOME}/build/cmake/android.toolchain.cmake \
+                -DCMAKE_SYSTEM_NAME=Android \
                 -G Ninja \
                 -Werror
 
@@ -49,3 +64,6 @@ jobs:
         run: |
           cmake --build build_${{matrix.abi}} \
                 --config ${{matrix.build_type}}
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.github/workflows/cifuzz.yml

@@ -0,0 +1,26 @@
+name: CIFuzz
+on: [pull_request]
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Fuzzers
+      id: build
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'glog'
+        dry-run: false
+        language: c++
+    - name: Run Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'glog'
+        fuzz-seconds: 60
+        dry-run: false
+        language: c++
+    - name: Upload Crash
+      uses: actions/upload-artifact@v4
+      if: failure() && steps.build.outcome == 'success'
+      with:
+        name: artifacts
+        path: ./out/artifacts

.github/workflows/emscripten.yml

@@ -0,0 +1,57 @@
+name: Emscripten
+
+on: [push, pull_request]
+
+jobs:
+  build-linux:
+    defaults:
+      run:
+        shell: bash
+    name: Emscripten-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}
+    runs-on: ubuntu-22.04
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+    container: emscripten/emsdk
+    strategy:
+      fail-fast: true
+      matrix:
+        build_type: [Release, Debug]
+        lib: [static]
+        std: [14, 17, 20, 23]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: cpp
+
+      - name: Setup Dependencies
+        run: |
+          sudo apt-get update
+          DEBIAN_FRONTEND=noninteractive sudo apt-get install -y \
+            cmake \
+            ninja-build
+
+      - name: Configure
+        env:
+          CXXFLAGS: -Wall -Wextra -Wsign-conversion -Wtautological-compare -Wformat-nonliteral -Wundef -Werror -Wno-error=wasm-exception-spec ${{env.CXXFLAGS}}
+        run: |
+          emcmake cmake -S . -B build_${{matrix.build_type}} \
+            -DBUILD_SHARED_LIBS=${{matrix.lib == 'shared'}} \
+            -DCMAKE_CXX_STANDARD=${{matrix.std}} \
+            -DCMAKE_CXX_STANDARD_REQUIRED=ON \
+            -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/install \
+            -G Ninja \
+            -Werror
+
+      - name: Build
+        run: |
+          cmake --build build_${{matrix.build_type}} \
+                --config ${{matrix.build_type}}
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.github/workflows/linux.yml

@@ -7,63 +7,44 @@ jobs:
     defaults:
       run:
         shell: bash
-    name: GCC-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}-${{matrix.extra}}
-    runs-on: ubuntu-latest
+    name: GCC-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}
+    runs-on: ubuntu-22.04
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
     strategy:
       fail-fast: true
       matrix:
         build_type: [Release, Debug]
-        extra: [no-custom-prefix, custom-prefix]
         lib: [shared, static]
-        std: [98, 11, 14, 17, 20]
+        std: [14, 17, 20, 23]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: cpp
 
       - name: Setup Dependencies
         run: |
           sudo apt-get update
-          DEBIAN_FRONTEND=noninteractive sudo apt-get install -y \
-            build-essential \
+          DEBIAN_FRONTEND=noninteractive sudo apt-get install -y --no-install-suggests --no-install-recommends \
+            g++ \
             cmake \
-            lcov \
+            gcovr \
             libgflags-dev \
+            libgmock-dev \
+            libgtest-dev \
             libunwind-dev \
             ninja-build
 
-      - name: Cache GTest
-        id: cache-gtest
-        uses: actions/cache@v2
-        with:
-          path: gtest/
-          key: ${{runner.os}}-gtest-1.11
-
-      - name: Download GTest
-        if: steps.cache-gtest.outputs.cache-hit != 'true'
-        run: |
-          wget https://github.com/google/googletest/archive/refs/tags/release-1.11.0.tar.gz
-          tar xvf release-1.11.0.tar.gz
-
-      - name: Build GTest
-        if: steps.cache-gtest.outputs.cache-hit != 'true'
-        run: |
-          cmake -S googletest-release-1.11.0 -B build-googletest \
-            -DBUILD_SHARED_LIBS=${{matrix.shared}} \
-            -DCMAKE_BUILD_TYPE=${{matrix.build_type}} \
-            -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/gtest \
-            -G Ninja
-          cmake --build build-googletest --target install
-
       - name: Setup Environment
         if: matrix.build_type == 'Debug'
         run: |
           echo 'CXXFLAGS=--coverage' >> $GITHUB_ENV
-          echo 'GTest_ROOT=${{github.workspace}}/gtest' >> $GITHUB_ENV
-
-      - name: Setup C++98 Environment
-        if: matrix.std == '98'
-        run: |
-          echo 'CXXFLAGS=-Wno-error=variadic-macros -Wno-error=long-long ${{env.CXXFLAGS}}' >> $GITHUB_ENV
 
       - name: Configure
         env:
@@ -74,7 +55,6 @@ jobs:
             -DCMAKE_CXX_STANDARD=${{matrix.std}} \
             -DCMAKE_CXX_STANDARD_REQUIRED=ON \
             -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/install \
-            -DWITH_CUSTOM_PREFIX=${{matrix.extra == 'custom-prefix'}} \
             -G Ninja \
             -Werror
 
@@ -124,27 +104,17 @@ jobs:
       - name: Generate Coverage
         if: matrix.build_type == 'Debug'
         run: |
-          lcov --directory . --capture --output-file coverage.info
-          lcov --remove coverage.info \
-            '${{github.workspace}}/gtest/*' \
-            '*/src/*_unittest.cc' \
-            '*/src/googletest.h' \
-            '*/src/mock-log.h' \
-            '/usr/*' \
-            --output-file coverage.info
-
-          for file in src/glog/*.h.in; do
-            name=$(basename ${file})
-            name_we=${name%.h.in}
-            sed -i "s|build_${{matrix.build_type}}/glog/${name_we}.h\$|${file}|g" coverage.info
-          done
-
-          lcov --list coverage.info
+          cd build_${{matrix.build_type}}
+          gcovr -r .. . -s --xml coverage.xml
 
       - name: Upload Coverage to Codecov
         if: matrix.build_type == 'Debug'
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
+          files: build_${{matrix.build_type}}/coverage.xml
           fail_ci_if_error: true
           verbose: true
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.github/workflows/macos.yml

@@ -5,41 +5,44 @@ on: [push, pull_request]
 jobs:
   build-macos:
     name: AppleClang-C++${{matrix.std}}-${{matrix.build_type}}
-    runs-on: macos-10.15
+    runs-on: macos-12
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
     strategy:
       fail-fast: true
       matrix:
-        std: [98, 11, 14, 17, 20]
+        std: [14, 17, 20, 23]
         include:
-          - generator: Ninja
+          - generator: Xcode
           - build_type: Debug
 
     steps:
-      - uses: actions/checkout@v2
-
-      - name: Setup Ninja
-        uses: ashutoshvarma/setup-ninja@master
-        with:
-          version: 1.10.0
+      - uses: actions/checkout@v4
 
       - name: Setup Dependencies
         run: |
-          brew install lcov
+          brew install ninja
+
+      - name: Setup Coverage Dependencies
+        if: matrix.build_type == 'Debug'
+        run: |
+          brew install gcovr
 
       - name: Setup Environment
         if: matrix.build_type == 'Debug'
         run: |
           echo 'CXXFLAGS=--coverage' >> $GITHUB_ENV
+          echo 'LDFLAGS=--coverage' >> $GITHUB_ENV
 
       - name: Configure
         shell: bash
         env:
-          CXXFLAGS: -Wall -Wextra -Wsign-conversion -Wtautological-compare -Wformat-nonliteral -Wundef -Werror ${{env.CXXFLAGS}}
+          CXXFLAGS: -Wall -Wextra -Wsign-conversion -Wtautological-compare -Wformat-nonliteral -Wundef -Werror -pedantic-errors ${{env.CXXFLAGS}}
         run: |
           cmake -S . -B build_${{matrix.build_type}} \
                 -DCMAKE_CXX_EXTENSIONS=OFF \
-                -DCMAKE_CXX_FLAGS_DEBUG=-pedantic-errors  \
-                -DCMAKE_CXX_FLAGS_RELEASE=-pedantic-errors \
                 -DCMAKE_CXX_STANDARD=${{matrix.std}} \
                 -DCMAKE_CXX_STANDARD_REQUIRED=ON \
                 -G "${{matrix.generator}}" \
@@ -53,31 +56,21 @@ jobs:
       - name: Test
         run: |
           ctest --test-dir build_${{matrix.build_type}} \
+                --build-config ${{matrix.build_type}} \
                 --output-on-failure
 
       - name: Generate Coverage
         if: matrix.build_type == 'Debug'
         run: |
-          lcov --directory . --capture --output-file coverage.info
-          lcov --remove coverage.info \
-            '*/src/*_unittest.cc' \
-            '*/src/googletest.h' \
-            '*/src/mock-log.h' \
-            '*/usr/*' \
-            --output-file coverage.info
-
-          for file in src/glog/*.h.in; do
-            name=$(basename ${file})
-            name_we=${name%.h.in}
-            sed -i "" "s|${{github.workspace}}/glog/${name_we}.h\$|${file}|g" coverage.info
-          done
-
-          lcov --list coverage.info
+          cd build_${{matrix.build_type}}
+          rm -r Tests/
+          gcovr -r .. . -s --cobertura coverage.xml
 
       - name: Upload Coverage to Codecov
         if: matrix.build_type == 'Debug'
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
+          files: build_${{matrix.build_type}}/coverage.xml
           fail_ci_if_error: true
           verbose: true

.github/workflows/windows.yml

@@ -4,8 +4,12 @@ on: [push, pull_request]
 
 jobs:
   build-msvc:
-    name: ${{matrix.msvc}}-${{matrix.arch}}-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}-${{matrix.extra}}
+    name: ${{matrix.msvc}}-${{matrix.arch}}-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}
     runs-on: ${{matrix.os}}
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
     defaults:
       run:
         shell: powershell
@@ -17,11 +21,9 @@ jobs:
       matrix:
         arch: [Win32, x64]
         build_type: [Debug, Release]
-        extra: [no-custom-prefix, custom-prefix]
         lib: [shared, static]
         msvc: [VS-16-2019, VS-17-2022]
-        # Visual Studio 17 2022 does not support C++11 and older language standard
-        std: [14, 17, 20]
+        std: [14, 17, 20, 23]
         include:
           - msvc: VS-16-2019
             os: windows-2019
@@ -31,25 +33,30 @@ jobs:
             generator: 'Visual Studio 17 2022'
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: cpp
 
       - name: Cache GTest
         id: cache-gtest
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: gtest/
-          key: ${{runner.os}}-gtest-1.11-${{matrix.lib}}-${{matrix.arch}}-${{matrix.build_type}}
+          key: ${{runner.os}}-gtest-1.14-${{matrix.lib}}-${{matrix.arch}}-${{matrix.build_type}}
 
       - name: Download GTest
         if: steps.cache-gtest.outputs.cache-hit != 'true'
         run: |
-          (New-Object System.Net.WebClient).DownloadFile("https://github.com/google/googletest/archive/refs/tags/release-1.11.0.zip", "release-1.11.0.zip")
-          Expand-Archive release-1.11.0.zip .
+          (New-Object System.Net.WebClient).DownloadFile("https://github.com/google/googletest/archive/refs/tags/v1.14.0.zip", "v1.14.0.zip")
+          Expand-Archive v1.14.0.zip .
 
       - name: Build GTest
         if: steps.cache-gtest.outputs.cache-hit != 'true'
         run: |
-          cmake -S googletest-release-1.11.0 -B build-googletest `
+          cmake -S googletest-1.14.0 -B build-googletest `
                 -A ${{matrix.arch}} `
                 -DBUILD_SHARED_LIBS=${{matrix.lib == 'shared'}} `
                 -Dgtest_force_shared_crt=ON `
@@ -60,7 +67,7 @@ jobs:
 
       - name: Cache gflags
         id: cache-gflags
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: gflags/
           key: ${{runner.os}}-gflags-2.2.2-${{matrix.lib}}-${{matrix.arch}}-${{matrix.build_type}}
@@ -106,7 +113,6 @@ jobs:
                 -DCMAKE_EXE_LINKER_FLAGS_RELEASE='/INCREMENTAL:NO /DEBUG' `
                 -DCMAKE_INSTALL_PREFIX:PATH=./install `
                 -DCMAKE_MSVC_RUNTIME_LIBRARY='MultiThreaded$<$<CONFIG:Debug>:Debug>DLL' `
-                -DWITH_CUSTOM_PREFIX=${{matrix.extra == 'custom-prefix'}} `
                 -G "${{matrix.generator}}" `
                 -Werror
 
@@ -128,11 +134,20 @@ jobs:
                 --config ${{matrix.build_type}} `
                 --target install
 
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3
+        with:
+          category: language:cpp
+
   build-mingw:
-    name: ${{matrix.sys}}-${{matrix.env}}-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}-${{matrix.extra}}
+    name: ${{matrix.sys}}-${{matrix.env}}-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}
     runs-on: windows-2022
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
     env:
-      BUILDDIR: 'build_${{matrix.sys}}-${{matrix.env}}-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}-${{matrix.extra}}'
+      BUILDDIR: 'build_${{matrix.sys}}-${{matrix.env}}-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}'
     defaults:
       run:
         shell: msys2 {0}
@@ -140,9 +155,8 @@ jobs:
       fail-fast: true
       matrix:
         build_type: [Debug]
-        extra: [no-custom-prefix, custom-prefix]
         lib: [shared, static]
-        std: [98, 11, 14, 17, 20]
+        std: [14, 17, 20, 23]
         sys: [mingw32, mingw64]
         include:
          - sys: mingw32
@@ -151,21 +165,30 @@ jobs:
            env: x86_64
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: cpp
+
       - uses: msys2/setup-msys2@v2
         with:
           msystem: ${{matrix.sys}}
           install: >-
-            lcov
             mingw-w64-${{matrix.env}}-cmake
             mingw-w64-${{matrix.env}}-gcc
             mingw-w64-${{matrix.env}}-gflags
             mingw-w64-${{matrix.env}}-ninja
+            mingw-w64-${{matrix.env}}-python-jinja
+            mingw-w64-${{matrix.env}}-python-lxml
+            mingw-w64-${{matrix.env}}-python-pip
+            mingw-w64-${{matrix.env}}-python-pygments
 
-      - name: Setup C++98 Environment
-        if: matrix.std == '98'
+      - name: Setup Coverage Dependencies
+        if: matrix.build_type == 'Debug'
         run: |
-          echo 'CXXFLAGS=-Wno-error=variadic-macros -Wno-error=long-long ${{env.CXXFLAGS}}' >> $GITHUB_ENV
+          pip install 'gcovr==7.0'
 
       - name: Setup Environment
         if: matrix.build_type == 'Debug'
@@ -183,7 +206,6 @@ jobs:
                 -DCMAKE_CXX_STANDARD=${{matrix.std}} \
                 -DCMAKE_CXX_STANDARD_REQUIRED=ON \
                 -DCMAKE_INSTALL_PREFIX:PATH=./install \
-                -DWITH_CUSTOM_PREFIX=${{matrix.extra == 'custom-prefix'}} \
                 -G Ninja \
                 -Werror
 
@@ -207,28 +229,17 @@ jobs:
       - name: Generate Coverage
         if: matrix.build_type == 'Debug'
         run: |
-          lcov --directory . --capture --output-file coverage.info
-          lcov --remove coverage.info \
-            '*/install/include/*' \
-            '*/msys64/mingw32/*' \
-            '*/msys64/mingw64/*' \
-            '*/src/*_unittest.cc' \
-            '*/src/googletest.h' \
-            '*/src/mock-log.h' \
-            --output-file coverage.info
-
-          for file in src/glog/*.h.in; do
-            name=$(basename ${file})
-            name_we=${name%.h.in}
-            sed -i "s|build_${{matrix.build_type}}/glog/${name_we}.h\$|${file}|g" coverage.info
-          done
-
-          lcov --list coverage.info
+          cd build_${{matrix.build_type}}
+          gcovr -r .. . -s --cobertura coverage.xml
 
       - name: Upload Coverage to Codecov
         if: matrix.build_type == 'Debug'
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
+          files: build_${{matrix.build_type}}/coverage.xml
           fail_ci_if_error: true
           verbose: true
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.gitignore

@@ -1,3 +1,6 @@
 *.orig
 /build*/
+/site/
 bazel-*
+# Bzlmod lockfile
+/MODULE.bazel.lock

AUTHORS

@@ -16,6 +16,7 @@ Brian Silverman <bsilver16384@gmail.com>
 Dmitriy Arbitman <d.arbitman@gmail.com>
 Google Inc.
 Guillaume Dumont <dumont.guillaume@gmail.com>
+LingBin <lingbinlb@gmail.com>
 Marco Wang <m.aesophor@gmail.com>
 Michael Tanner <michael@tannertaxpro.com>
 MiniLight <MiniLightAR@Gmail.com>

BUILD.bazel

@@ -1,7 +1,22 @@
-licenses(['notice'])
+licenses(["notice"])
 
 exports_files(["COPYING"])
 
-load(':bazel/glog.bzl', 'glog_library')
+load(":bazel/glog.bzl", "glog_library")
 
 glog_library()
+
+# platform() to build with clang-cl on Bazel CI. This is enabled with
+# the flags in .bazelci/presubmit.yml:
+#
+#   --incompatible_enable_cc_toolchain_resolution
+#   --extra_toolchains=@local_config_cc//:cc-toolchain-x64_windows-clang-cl
+#   --extra_execution_platforms=//:x64_windows-clang-cl
+platform(
+    name = "x64_windows-clang-cl",
+    constraint_values = [
+        "@platforms//cpu:x86_64",
+        "@platforms//os:windows",
+        "@rules_cc//cc/private/toolchain:clang-cl",
+    ],
+)

CONTRIBUTORS

@@ -29,12 +29,14 @@ Andy Ying <andy@trailofbits.com>
 Bret McKee <bretmckee@google.com>
 Brian Silverman <bsilver16384@gmail.com>
 Dmitriy Arbitman <d.arbitman@gmail.com>
+Eric Kilmer <eric.d.kilmer@gmail.com>
 Fumitoshi Ukai <ukai@google.com>
 Guillaume Dumont <dumont.guillaume@gmail.com>
 Håkan L. S. Younes <hyounes@google.com>
 Ivan Penkov <ivanpe@google.com>
 Jacob Trimble <modmaker@google.com>
 Jim Ray <jimray@google.com>
+LingBin <lingbinlb@gmail.com>
 Marco Wang <m.aesophor@gmail.com>
 Michael Darr <mdarr@matician.com>
 Michael Tanner <michael@tannertaxpro.com>

COPYING

@@ -1,65 +0,0 @@
-Copyright (c) 2008, Google Inc.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-    * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-    * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-A function gettimeofday in utilities.cc is based on
-
-http://www.google.com/codesearch/p?hl=en#dR3YEbitojA/COPYING&q=GetSystemTimeAsFileTime%20license:bsd
-
-The license of this code is:
-
-Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi> and contributors
-All Rights Reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-
-3. Neither the name(s) of the above-listed copyright holder(s) nor the
-   names of its contributors may be used to endorse or promote products
-   derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

ChangeLog

@@ -1,3 +1,18 @@
+2024-06-08  Google Inc. <opensource@google.com>
+
+	* google-glog: version 0.7.1.
+	* See git log for the details.
+
+2024-02-17  Google Inc. <opensource@google.com>
+
+	* google-glog: version 0.7.0.
+	* See git log for the details.
+
+2022-04-05  Google Inc. <opensource@google.com>
+
+	* google-glog: version 0.6.0.
+	* See git log for the details.
+
 2021-05-08  Google Inc. <opensource@google.com>
 
 	* google-glog: version 0.5.0.

LICENSE.md

@@ -0,0 +1,27 @@
+Copyright © 2024, Google Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+* Redistributions in binary form must reproduce the above copyright notice, this
+  list of conditions and the following disclaimer in the documentation and/or
+  other materials provided with the distribution.
+* Neither the name of Google Inc. nor the names of its contributors may be used
+  to endorse or promote products derived from this software without specific
+  prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

MODULE.bazel

@@ -0,0 +1,13 @@
+module(
+    name = "glog",
+    compatibility_level = 1,
+)
+
+bazel_dep(name = "gflags", version = "2.2.2")
+bazel_dep(name = "googletest", version = "1.14.0", dev_dependency = True)
+bazel_dep(name = "platforms", version = "0.0.10")
+bazel_dep(name = "rules_cc", version = "0.0.12")
+
+# Required for Windows clang-cl build: --extra_toolchains=@local_config_cc//:cc-toolchain-arm64_windows
+cc_configure = use_extension("@rules_cc//cc:extensions.bzl", "cc_configure_extension")
+use_repo(cc_configure, "local_config_cc")

README.rst

@@ -1,868 +1,16 @@
 Google Logging Library
 ======================
 
-|Linux Github actions| |Windows Github actions| |macOS Github actions| |Total alerts| |Language grade: C++| |Codecov|
+|Linux Github actions| |Windows Github actions| |macOS Github actions| |Codecov|
 
-Google Logging (glog) is a C++98 library that implements application-level
+Google Logging (glog) is a C++14 library that implements application-level
 logging. The library provides logging APIs based on C++-style streams and
 various helper macros.
 
-.. role:: cmake(code)
-   :language: cmake
-
-.. role:: cmd(code)
-   :language: bash
-
-.. role:: cpp(code)
-   :language: cpp
-
-.. role:: bazel(code)
-   :language: starlark
-
-
 Getting Started
 ---------------
 
-You can log a message by simply streaming things to ``LOG``\ (<a
-particular `severity level <#severity-levels>`__>), e.g.,
-
-.. code:: cpp
-
-   #include <glog/logging.h>
-
-   int main(int argc, char* argv[]) {
-       // Initialize Google’s logging library.
-       google::InitGoogleLogging(argv[0]);
-
-       // ...
-       LOG(INFO) << "Found " << num_cookies << " cookies";
-   }
-
-
-For a detailed overview of glog features and their usage, please refer
-to the `user guide <#user-guide>`__.
-
-.. contents:: Table of Contents
-
-
-Building from Source
---------------------
-
-glog supports multiple build systems for compiling the project from
-source: `Bazel <#bazel>`__, `CMake <#cmake>`__, and `vcpkg <#vcpkg>`__.
-
-Bazel
-~~~~~
-
-To use glog within a project which uses the
-`Bazel <https://bazel.build/>`__ build tool, add the following lines to
-your ``WORKSPACE`` file:
-
-.. code:: bazel
-
-   load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-   http_archive(
-       name = "com_github_gflags_gflags",
-       sha256 = "34af2f15cf7367513b352bdcd2493ab14ce43692d2dcd9dfc499492966c64dcf",
-       strip_prefix = "gflags-2.2.2",
-       urls = ["https://github.com/gflags/gflags/archive/v2.2.2.tar.gz"],
-   )
-
-   http_archive(
-       name = "com_github_google_glog",
-       sha256 = "21bc744fb7f2fa701ee8db339ded7dce4f975d0d55837a97be7d46e8382dea5a",
-       strip_prefix = "glog-0.5.0",
-       urls = ["https://github.com/google/glog/archive/v0.5.0.zip"],
-   )
-
-You can then add :bazel:`@com_github_google_glog//:glog` to the deps section
-of a :bazel:`cc_binary` or :bazel:`cc_library` rule, and :code:`#include
-<glog/logging.h>` to include it in your source code. Here’s a simple example:
-
-.. code:: bazel
-
-   cc_binary(
-       name = "main",
-       srcs = ["main.cc"],
-       deps = ["@com_github_google_glog//:glog"],
-   )
-
-CMake
-~~~~~
-
-glog also supports CMake that can be used to build the project on a wide
-range of platforms. If you don’t have CMake installed already, you can
-download it for from CMake’s `official
-website <http://www.cmake.org>`__.
-
-CMake works by generating native makefiles or build projects that can be
-used in the compiler environment of your choice. You can either build
-glog with CMake as a standalone project or it can be incorporated into
-an existing CMake build for another project.
-
-Building glog with CMake
-^^^^^^^^^^^^^^^^^^^^^^^^
-
-When building glog as a standalone project, on Unix-like systems with
-GNU Make as build tool, the typical workflow is:
-
-1. Get the source code and change to it. e.g., cloning with git:
-
-  .. code:: bash
-
-     git clone https://github.com/google/glog.git
-     cd glog
-
-2. Run CMake to configure the build tree.
-
-  .. code:: bash
-
-     cmake -S . -B build -G "Unix Makefiles"
-
-  CMake provides different generators, and by default will pick the most
-  relevant one to your environment. If you need a specific version of Visual
-  Studio, use :cmd:`cmake . -G <generator-name>`, and see :cmd:`cmake --help`
-  for the available generators. Also see :cmd:`-T <toolset-name>`, which can
-  be used to request the native x64 toolchain with :cmd:`-T host=x64`.
-
-3. Afterwards, generated files can be used to compile the project.
-
-  .. code:: bash
-
-     cmake --build build
-
-4. Test the build software (optional).
-
-  .. code:: bash
-
-     cmake --build build --target test
-
-5. Install the built files (optional).
-
-  .. code:: bash
-
-     cmake --build build --target install
-
-Consuming glog in a CMake Project
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-If you have glog installed in your system, you can use the CMake command
-:cmake:`find_package` to build against glog in your CMake Project as follows:
-
-.. code:: cmake
-
-   cmake_minimum_required (VERSION 3.16)
-   project (myproj VERSION 1.0)
-
-   find_package (glog 0.6.0 REQUIRED)
-
-   add_executable (myapp main.cpp)
-   target_link_libraries (myapp glog::glog)
-
-Compile definitions and options will be added automatically to your
-target as needed.
-
-Incorporating glog into a CMake Project
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-You can also use the CMake command :cmake:`add_subdirectory` to include glog
-directly from a subdirectory of your project by replacing the
-:cmake:`find_package` call from the previous example by
-:cmake:`add_subdirectory`. The :cmake:`glog::glog` target is in this case an
-:cmake:`ALIAS` library target for the ``glog`` library target.
-
-Again, compile definitions and options will be added automatically to
-your target as needed.
-
-vcpkg
-~~~~~
-
-You can download and install glog using the `vcpkg
-<https://github.com/Microsoft/vcpkg>`__ dependency manager:
-
-.. code:: bash
-
-   git clone https://github.com/Microsoft/vcpkg.git
-   cd vcpkg
-   ./bootstrap-vcpkg.sh
-   ./vcpkg integrate install
-   ./vcpkg install glog
-
-The glog port in vcpkg is kept up to date by Microsoft team members and
-community contributors. If the version is out of date, please create an
-issue or pull request on the vcpkg repository.
-
-User Guide
-----------
-
-glog defines a series of macros that simplify many common logging tasks.
-You can log messages by severity level, control logging behavior from
-the command line, log based on conditionals, abort the program when
-expected conditions are not met, introduce your own verbose logging
-levels, customize the prefix attached to log messages, and more.
-
-Following sections describe the functionality supported by glog. Please note
-this description may not be complete but limited to the most useful ones. If you
-want to find less common features, please check header files under `src/glog
-<src/glog>`__ directory.
-
-Severity Levels
-~~~~~~~~~~~~~~~
-
-You can specify one of the following severity levels (in increasing
-order of severity): ``INFO``, ``WARNING``, ``ERROR``, and ``FATAL``.
-Logging a ``FATAL`` message terminates the program (after the message is
-logged). Note that messages of a given severity are logged not only in
-the logfile for that severity, but also in all logfiles of lower
-severity. E.g., a message of severity ``FATAL`` will be logged to the
-logfiles of severity ``FATAL``, ``ERROR``, ``WARNING``, and ``INFO``.
-
-The ``DFATAL`` severity logs a ``FATAL`` error in debug mode (i.e.,
-there is no ``NDEBUG`` macro defined), but avoids halting the program in
-production by automatically reducing the severity to ``ERROR``.
-
-Unless otherwise specified, glog writes to the filename
-``/tmp/\<program name\>.\<hostname\>.\<user name\>.log.\<severity level\>.\<date\>-\<time\>.\<pid\>``
-(e.g.,
-``/tmp/hello_world.example.com.hamaji.log.INFO.20080709-222411.10474``).
-By default, glog copies the log messages of severity level ``ERROR`` or
-``FATAL`` to standard error (``stderr``) in addition to log files.
-
-Setting Flags
-~~~~~~~~~~~~~
-
-Several flags influence glog’s output behavior. If the `Google gflags library
-<https://github.com/gflags/gflags>`__ is installed on your machine, the build
-system will automatically detect and use it, allowing you to pass flags on the
-command line. For example, if you want to turn the flag :cmd:`--logtostderr` on,
-you can start your application with the following command line:
-
-.. code:: bash
-
-   ./your_application --logtostderr=1
-
-If the Google gflags library isn’t installed, you set flags via
-environment variables, prefixing the flag name with ``GLOG_``, e.g.,
-
-.. code:: bash
-
-   GLOG_logtostderr=1 ./your_application
-
-The following flags are most commonly used:
-
-``logtostderr`` (``bool``, default=\ ``false``)
-   Log messages to ``stderr`` instead of logfiles. Note: you can set
-   binary flags to ``true`` by specifying ``1``, ``true``, or ``yes``
-   (case insensitive). Also, you can set binary flags to ``false`` by
-   specifying ``0``, ``false``, or ``no`` (again, case insensitive).
-
-``stderrthreshold`` (``int``, default=2, which is ``ERROR``)
-   Copy log messages at or above this level to stderr in addition to
-   logfiles. The numbers of severity levels ``INFO``, ``WARNING``,
-   ``ERROR``, and ``FATAL`` are 0, 1, 2, and 3, respectively.
-
-``minloglevel`` (``int``, default=0, which is ``INFO``)
-   Log messages at or above this level. Again, the numbers of severity
-   levels ``INFO``, ``WARNING``, ``ERROR``, and ``FATAL`` are 0, 1, 2,
-   and 3, respectively.
-
-``log_dir`` (``string``, default="")
-   If specified, logfiles are written into this directory instead of the
-   default logging directory.
-
-``v`` (``int``, default=0)
-   Show all ``VLOG(m)`` messages for ``m`` less or equal the value of
-   this flag. Overridable by :cmd:`--vmodule`. See `the section about
-   verbose logging <#verbose-logging>`__ for more detail.
-
-``vmodule`` (``string``, default="")
-   Per-module verbose level. The argument has to contain a
-   comma-separated list of <module name>=<log level>. <module name> is a
-   glob pattern (e.g., ``gfs*`` for all modules whose name starts with
-   "gfs"), matched against the filename base (that is, name ignoring
-   .cc/.h./-inl.h). <log level> overrides any value given by :cmd:`--v`.
-   See also `the section about verbose logging <#verbose-logging>`__.
-
-There are some other flags defined in logging.cc. Please grep the source
-code for ``DEFINE_`` to see a complete list of all flags.
-
-You can also modify flag values in your program by modifying global
-variables ``FLAGS_*`` . Most settings start working immediately after
-you update ``FLAGS_*`` . The exceptions are the flags related to
-destination files. For example, you might want to set ``FLAGS_log_dir``
-before calling :cpp:`google::InitGoogleLogging` . Here is an example:
-
-.. code:: cpp
-
-   LOG(INFO) << "file";
-   // Most flags work immediately after updating values.
-   FLAGS_logtostderr = 1;
-   LOG(INFO) << "stderr";
-   FLAGS_logtostderr = 0;
-   // This won’t change the log destination. If you want to set this
-   // value, you should do this before google::InitGoogleLogging .
-   FLAGS_log_dir = "/some/log/directory";
-   LOG(INFO) << "the same file";
-
-Conditional / Occasional Logging
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Sometimes, you may only want to log a message under certain conditions.
-You can use the following macros to perform conditional logging:
-
-.. code:: cpp
-
-   LOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
-
-The "Got lots of cookies" message is logged only when the variable
-``num_cookies`` exceeds 10. If a line of code is executed many times, it
-may be useful to only log a message at certain intervals. This kind of
-logging is most useful for informational messages.
-
-.. code:: cpp
-
-   LOG_EVERY_N(INFO, 10) << "Got the " << google::COUNTER << "th cookie";
-
-The above line outputs a log messages on the 1st, 11th, 21st, ... times
-it is executed. Note that the special ``google::COUNTER`` value is used
-to identify which repetition is happening.
-
-You can combine conditional and occasional logging with the following
-macro.
-
-.. code:: cpp
-
-   LOG_IF_EVERY_N(INFO, (size > 1024), 10) << "Got the " << google::COUNTER
-                                           << "th big cookie";
-
-Instead of outputting a message every nth time, you can also limit the
-output to the first n occurrences:
-
-.. code:: cpp
-
-   LOG_FIRST_N(INFO, 20) << "Got the " << google::COUNTER << "th cookie";
-
-Outputs log messages for the first 20 times it is executed. Again, the
-``google::COUNTER`` identifier indicates which repetition is happening.
-
-Other times, it is desired to only log a message periodically based on a time.
-So for example, to log a message every 10ms:
-
-.. code:: cpp
-
-   LOG_EVERY_T(INFO, 0.01) << "Got a cookie";
-
-Or every 2.35s:
-
-.. code:: cpp
-
-   LOG_EVERY_T(INFO, 2.35) << "Got a cookie";
-
-Debug Mode Support
-~~~~~~~~~~~~~~~~~~
-
-Special "debug mode" logging macros only have an effect in debug mode
-and are compiled away to nothing for non-debug mode compiles. Use these
-macros to avoid slowing down your production application due to
-excessive logging.
-
-.. code:: cpp
-
-   DLOG(INFO) << "Found cookies";
-   DLOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
-   DLOG_EVERY_N(INFO, 10) << "Got the " << google::COUNTER << "th cookie";
-
-
-``CHECK`` Macros
-~~~~~~~~~~~~~~~~
-
-It is a good practice to check expected conditions in your program
-frequently to detect errors as early as possible. The ``CHECK`` macro
-provides the ability to abort the application when a condition is not
-met, similar to the ``assert`` macro defined in the standard C library.
-
-``CHECK`` aborts the application if a condition is not true. Unlike
-``assert``, it is \*not\* controlled by ``NDEBUG``, so the check will be
-executed regardless of compilation mode. Therefore, ``fp->Write(x)`` in
-the following example is always executed:
-
-.. code:: cpp
-
-   CHECK(fp->Write(x) == 4) << "Write failed!";
-
-There are various helper macros for equality/inequality checks -
-``CHECK_EQ``, ``CHECK_NE``, ``CHECK_LE``, ``CHECK_LT``, ``CHECK_GE``,
-and ``CHECK_GT``. They compare two values, and log a ``FATAL`` message
-including the two values when the result is not as expected. The values
-must have :cpp:`operator<<(ostream, ...)` defined.
-
-You may append to the error message like so:
-
-.. code:: cpp
-
-   CHECK_NE(1, 2) << ": The world must be ending!";
-
-We are very careful to ensure that each argument is evaluated exactly
-once, and that anything which is legal to pass as a function argument is
-legal here. In particular, the arguments may be temporary expressions
-which will end up being destroyed at the end of the apparent statement,
-for example:
-
-.. code:: cpp
-
-   CHECK_EQ(string("abc")[1], ’b’);
-
-The compiler reports an error if one of the arguments is a pointer and the other
-is :cpp:`NULL`. To work around this, simply :cpp:`static_cast` :cpp:`NULL` to
-the type of the desired pointer.
-
-.. code:: cpp
-
-   CHECK_EQ(some_ptr, static_cast<SomeType*>(NULL));
-
-Better yet, use the ``CHECK_NOTNULL`` macro:
-
-.. code:: cpp
-
-   CHECK_NOTNULL(some_ptr);
-   some_ptr->DoSomething();
-
-Since this macro returns the given pointer, this is very useful in
-constructor initializer lists.
-
-.. code:: cpp
-
-   struct S {
-       S(Something* ptr) : ptr_(CHECK_NOTNULL(ptr)) {}
-       Something* ptr_;
-   };
-
-Note that you cannot use this macro as a C++ stream due to this feature.
-Please use ``CHECK_EQ`` described above to log a custom message before
-aborting the application.
-
-If you are comparing C strings (:cpp:`char *`), a handy set of macros performs
-case sensitive as well as case insensitive comparisons - ``CHECK_STREQ``,
-``CHECK_STRNE``, ``CHECK_STRCASEEQ``, and ``CHECK_STRCASENE``. The CASE versions
-are case-insensitive. You can safely pass :cpp:`NULL` pointers for this macro. They
-treat :cpp:`NULL` and any non-:cpp:`NULL` string as not equal. Two :cpp:`NULL`\
-s are equal.
-
-Note that both arguments may be temporary strings which are destructed
-at the end of the current "full expression" (e.g.,
-:cpp:`CHECK_STREQ(Foo().c_str(), Bar().c_str())` where ``Foo`` and ``Bar``
-return C++’s :cpp:`std::string`).
-
-The ``CHECK_DOUBLE_EQ`` macro checks the equality of two floating point
-values, accepting a small error margin. ``CHECK_NEAR`` accepts a third
-floating point argument, which specifies the acceptable error margin.
-
-Verbose Logging
-~~~~~~~~~~~~~~~
-
-When you are chasing difficult bugs, thorough log messages are very useful.
-However, you may want to ignore too verbose messages in usual development. For
-such verbose logging, glog provides the ``VLOG`` macro, which allows you to
-define your own numeric logging levels. The :cmd:`--v` command line option
-controls which verbose messages are logged:
-
-.. code:: cpp
-
-   VLOG(1) << "I’m printed when you run the program with --v=1 or higher";
-   VLOG(2) << "I’m printed when you run the program with --v=2 or higher";
-
-With ``VLOG``, the lower the verbose level, the more likely messages are to be
-logged. For example, if :cmd:`--v==1`, ``VLOG(1)`` will log, but ``VLOG(2)``
-will not log. This is opposite of the severity level, where ``INFO`` is 0, and
-``ERROR`` is 2. :cmd:`--minloglevel` of 1 will log ``WARNING`` and above. Though
-you can specify any integers for both ``VLOG`` macro and :cmd:`--v` flag, the
-common values for them are small positive integers. For example, if you write
-``VLOG(0)``, you should specify :cmd:`--v=-1` or lower to silence it. This is
-less useful since we may not want verbose logs by default in most cases. The
-``VLOG`` macros always log at the ``INFO`` log level (when they log at all).
-
-Verbose logging can be controlled from the command line on a per-module
-basis:
-
-.. code:: bash
-
-   --vmodule=mapreduce=2,file=1,gfs*=3 --v=0
-
-will:
-
-(a) Print ``VLOG(2)`` and lower messages from mapreduce.{h,cc}
-(b) Print ``VLOG(1)`` and lower messages from file.{h,cc}
-(c) Print ``VLOG(3)`` and lower messages from files prefixed with "gfs"
-(d) Print ``VLOG(0)`` and lower messages from elsewhere
-
-The wildcarding functionality shown by (c) supports both ’*’ (matches 0
-or more characters) and ’?’ (matches any single character) wildcards.
-Please also check the section about `command line flags <#setting-flags>`__.
-
-There’s also ``VLOG_IS_ON(n)`` "verbose level" condition macro. This
-macro returns true when the :cmd:`--v` is equal or greater than ``n``. To
-be used as
-
-.. code:: cpp
-
-   if (VLOG_IS_ON(2)) {
-       // do some logging preparation and logging
-       // that can’t be accomplished with just VLOG(2) << ...;
-   }
-
-Verbose level condition macros ``VLOG_IF``, ``VLOG_EVERY_N`` and
-``VLOG_IF_EVERY_N`` behave analogous to ``LOG_IF``, ``LOG_EVERY_N``,
-``LOF_IF_EVERY``, but accept a numeric verbosity level as opposed to a
-severity level.
-
-.. code:: cpp
-
-   VLOG_IF(1, (size > 1024))
-      << "I’m printed when size is more than 1024 and when you run the "
-         "program with --v=1 or more";
-   VLOG_EVERY_N(1, 10)
-      << "I’m printed every 10th occurrence, and when you run the program "
-         "with --v=1 or more. Present occurence is " << google::COUNTER;
-   VLOG_IF_EVERY_N(1, (size > 1024), 10)
-      << "I’m printed on every 10th occurence of case when size is more "
-         " than 1024, when you run the program with --v=1 or more. ";
-         "Present occurence is " << google::COUNTER;
-
-
-Custom Log Prefix Format
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-glog supports changing the format of the prefix attached to log messages by
-receiving a user-provided callback to be used to generate such strings.  That
-feature must be enabled at compile time by the ``WITH_CUSTOM_PREFIX`` flag.
-
-For each log entry, the callback will be invoked with a ``LogMessageInfo``
-struct containing the severity, filename, line number, thread ID, and time of
-the event. It will also be given a reference to the output stream, whose
-contents will be prepended to the actual message in the final log line.
-
-For example:
-
-.. code:: cpp
-
-    /* This function writes a prefix that matches glog's default format.
-     * (The third parameter can be used to receive user-supplied data, and is
-     * NULL by default.)
-     */
-    void CustomPrefix(std::ostream &s, const LogMessageInfo &l, void*) {
-       s << l.severity[0]
-       << setw(4) << 1900 + l.time.year()
-       << setw(2) << 1 + l.time.month()
-       << setw(2) << l.time.day()
-       << ' '
-       << setw(2) << l.time.hour() << ':'
-       << setw(2) << l.time.min()  << ':'
-       << setw(2) << l.time.sec() << "."
-       << setw(6) << l.time.usec()
-       << ' '
-       << setfill(' ') << setw(5)
-       << l.thread_id << setfill('0')
-       << ' '
-       << l.filename << ':' << l.line_number << "]";
-    }
-
-
-To enable the use of ``CustomPrefix()``, simply give glog a pointer to it
-during initialization: ``InitGoogleLogging(argv[0], &CustomPrefix);``.
-
-Optionally, ``InitGoogleLogging()`` takes a third argument of type  ``void*``
-to pass on to the callback function.
-
-Failure Signal Handler
-~~~~~~~~~~~~~~~~~~~~~~
-
-The library provides a convenient signal handler that will dump useful
-information when the program crashes on certain signals such as ``SIGSEGV``. The
-signal handler can be installed by :cpp:`google::InstallFailureSignalHandler()`.
-The following is an example of output from the signal handler.
-
-::
-
-   *** Aborted at 1225095260 (unix time) try "date -d @1225095260" if you are using GNU date ***
-   *** SIGSEGV (@0x0) received by PID 17711 (TID 0x7f893090a6f0) from PID 0; stack trace: ***
-   PC: @           0x412eb1 TestWaitingLogSink::send()
-       @     0x7f892fb417d0 (unknown)
-       @           0x412eb1 TestWaitingLogSink::send()
-       @     0x7f89304f7f06 google::LogMessage::SendToLog()
-       @     0x7f89304f35af google::LogMessage::Flush()
-       @     0x7f89304f3739 google::LogMessage::~LogMessage()
-       @           0x408cf4 TestLogSinkWaitTillSent()
-       @           0x4115de main
-       @     0x7f892f7ef1c4 (unknown)
-       @           0x4046f9 (unknown)
-
-By default, the signal handler writes the failure dump to the standard
-error. You can customize the destination by :cpp:`InstallFailureWriter()`.
-
-Performance of Messages
-~~~~~~~~~~~~~~~~~~~~~~~
-
-The conditional logging macros provided by glog (e.g., ``CHECK``,
-``LOG_IF``, ``VLOG``, etc.) are carefully implemented and don’t execute
-the right hand side expressions when the conditions are false. So, the
-following check may not sacrifice the performance of your application.
-
-.. code:: cpp
-
-   CHECK(obj.ok) << obj.CreatePrettyFormattedStringButVerySlow();
-
-User-defined Failure Function
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-``FATAL`` severity level messages or unsatisfied ``CHECK`` condition
-terminate your program. You can change the behavior of the termination
-by :cpp:`InstallFailureFunction`.
-
-.. code:: cpp
-
-   void YourFailureFunction() {
-     // Reports something...
-     exit(EXIT_FAILURE);
-   }
-
-   int main(int argc, char* argv[]) {
-     google::InstallFailureFunction(&YourFailureFunction);
-   }
-
-By default, glog tries to dump stacktrace and makes the program exit
-with status 1. The stacktrace is produced only when you run the program
-on an architecture for which glog supports stack tracing (as of
-September 2008, glog supports stack tracing for x86 and x86_64).
-
-Raw Logging
-~~~~~~~~~~~
-
-The header file ``<glog/raw_logging.h>`` can be used for thread-safe logging,
-which does not allocate any memory or acquire any locks. Therefore, the macros
-defined in this header file can be used by low-level memory allocation and
-synchronization code. Please check `src/glog/raw_logging.h.in
-<src/glog/raw_logging.h.in>`__ for detail.
-
-Google Style ``perror()``
-~~~~~~~~~~~~~~~~~~~~~~~~~
-
-``PLOG()`` and ``PLOG_IF()`` and ``PCHECK()`` behave exactly like their
-``LOG*`` and ``CHECK`` equivalents with the addition that they append a
-description of the current state of errno to their output lines. E.g.
-
-.. code:: cpp
-
-   PCHECK(write(1, NULL, 2) >= 0) << "Write NULL failed";
-
-This check fails with the following error message.
-
-::
-
-   F0825 185142 test.cc:22] Check failed: write(1, NULL, 2) >= 0 Write NULL failed: Bad address [14]
-
-Syslog
-~~~~~~
-
-``SYSLOG``, ``SYSLOG_IF``, and ``SYSLOG_EVERY_N`` macros are available.
-These log to syslog in addition to the normal logs. Be aware that
-logging to syslog can drastically impact performance, especially if
-syslog is configured for remote logging! Make sure you understand the
-implications of outputting to syslog before you use these macros. In
-general, it’s wise to use these macros sparingly.
-
-Strip Logging Messages
-~~~~~~~~~~~~~~~~~~~~~~
-
-Strings used in log messages can increase the size of your binary and
-present a privacy concern. You can therefore instruct glog to remove all
-strings which fall below a certain severity level by using the
-``GOOGLE_STRIP_LOG`` macro:
-
-If your application has code like this:
-
-.. code:: cpp
-
-   #define GOOGLE_STRIP_LOG 1    // this must go before the #include!
-   #include <glog/logging.h>
-
-The compiler will remove the log messages whose severities are less than
-the specified integer value. Since ``VLOG`` logs at the severity level
-``INFO`` (numeric value ``0``), setting ``GOOGLE_STRIP_LOG`` to 1 or
-greater removes all log messages associated with ``VLOG``\ s as well as
-``INFO`` log statements.
-
-Automatically Remove Old Logs
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-To enable the log cleaner:
-
-.. code:: cpp
-
-   google::EnableLogCleaner(3); // keep your logs for 3 days
-
-And then glog will check if there are overdue logs whenever a flush is
-performed. In this example, any log file from your project whose last
-modified time is greater than 3 days will be unlink()ed.
-
-This feature can be disabled at any time (if it has been enabled)
-
-.. code:: cpp
-
-   google::DisableLogCleaner();
-
-Notes for Windows Users
-~~~~~~~~~~~~~~~~~~~~~~~
-
-glog defines a severity level ``ERROR``, which is also defined in
-``windows.h`` . You can make glog not define ``INFO``, ``WARNING``,
-``ERROR``, and ``FATAL`` by defining ``GLOG_NO_ABBREVIATED_SEVERITIES``
-before including ``glog/logging.h`` . Even with this macro, you can
-still use the iostream like logging facilities:
-
-.. code:: cpp
-
-   #define GLOG_NO_ABBREVIATED_SEVERITIES
-   #include <windows.h>
-   #include <glog/logging.h>
-
-   // ...
-
-   LOG(ERROR) << "This should work";
-   LOG_IF(ERROR, x > y) << "This should be also OK";
-
-However, you cannot use ``INFO``, ``WARNING``, ``ERROR``, and ``FATAL``
-anymore for functions defined in ``glog/logging.h`` .
-
-.. code:: cpp
-
-   #define GLOG_NO_ABBREVIATED_SEVERITIES
-   #include <windows.h>
-   #include <glog/logging.h>
-
-   // ...
-
-   // This won’t work.
-   // google::FlushLogFiles(google::ERROR);
-
-   // Use this instead.
-   google::FlushLogFiles(google::GLOG_ERROR);
-
-If you don’t need ``ERROR`` defined by ``windows.h``, there are a couple
-of more workarounds which sometimes don’t work:
-
--  ``#define WIN32_LEAN_AND_MEAN`` or ``NOGDI`` **before** you
-   ``#include windows.h``.
--  ``#undef ERROR`` **after** you ``#include windows.h`` .
-
-See `this
-issue <http://code.google.com/p/google-glog/issues/detail?id=33>`__ for
-more detail.
-
-
-Installation Notes for 64-bit Linux Systems
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The glibc built-in stack-unwinder on 64-bit systems has some problems with glog.
-(In particular, if you are using :cpp:`InstallFailureSignalHandler()`, the
-signal may be raised in the middle of malloc, holding some malloc-related locks
-when they invoke the stack unwinder. The built-in stack unwinder may call malloc
-recursively, which may require the thread to acquire a lock it already holds:
-deadlock.)
-
-For that reason, if you use a 64-bit system and you need
-:cpp:`InstallFailureSignalHandler()`, we strongly recommend you install
-``libunwind`` before trying to configure or install google glog.
-libunwind can be found
-`here <http://download.savannah.nongnu.org/releases/libunwind/libunwind-snap-070410.tar.gz>`__.
-
-Even if you already have ``libunwind`` installed, you will probably
-still need to install from the snapshot to get the latest version.
-
-Caution: if you install libunwind from the URL above, be aware that you
-may have trouble if you try to statically link your binary with glog:
-that is, if you link with ``gcc -static -lgcc_eh ...``. This is because
-both ``libunwind`` and ``libgcc`` implement the same C++ exception
-handling APIs, but they implement them differently on some platforms.
-This is not likely to be a problem on ia64, but may be on x86-64.
-
-Also, if you link binaries statically, make sure that you add
-:cmd:`-Wl,--eh-frame-hdr` to your linker options. This is required so that
-``libunwind`` can find the information generated by the compiler required for
-stack unwinding.
-
-Using :cmd:`-static` is rare, though, so unless you know this will affect you it
-probably won’t.
-
-If you cannot or do not wish to install libunwind, you can still try to
-use two kinds of stack-unwinder: 1. glibc built-in stack-unwinder and 2.
-frame pointer based stack-unwinder.
-
-1. As we already mentioned, glibc’s unwinder has a deadlock issue.
-   However, if you don’t use :cpp:`InstallFailureSignalHandler()` or you
-   don’t worry about the rare possibilities of deadlocks, you can use
-   this stack-unwinder. If you specify no options and ``libunwind``
-   isn’t detected on your system, the configure script chooses this
-   unwinder by default.
-
-2. The frame pointer based stack unwinder requires that your
-   application, the glog library, and system libraries like libc, all be
-   compiled with a frame pointer. This is *not* the default for x86-64.
-
-
-How to Contribute
------------------
-
-We’d love to accept your patches and contributions to this project.
-There are a just a few small guidelines you need to follow.
-
-Contributor License Agreement (CLA)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Contributions to any Google project must be accompanied by a Contributor
-License Agreement. This is not a copyright **assignment**, it simply
-gives Google permission to use and redistribute your contributions as
-part of the project.
-
-* If you are an individual writing original source code and you’re sure
-  you own the intellectual property, then you’ll need to sign an
-  `individual
-  CLA <https://developers.google.com/open-source/cla/individual>`__.
-* If you work for a company that wants to allow you to contribute your
-  work, then you’ll need to sign a `corporate
-  CLA <https://developers.google.com/open-source/cla/corporate>`__.
-
-You generally only need to submit a CLA once, so if you’ve already
-submitted one (even if it was for a different project), you probably
-don’t need to do it again.
-
-Once your CLA is submitted (or if you already submitted one for another
-Google project), make a commit adding yourself to the
-`AUTHORS <./AUTHORS>`__ and `CONTRIBUTORS <./CONTRIBUTORS>`__ files. This
-commit can be part of your first `pull
-request <https://help.github.com/articles/creating-a-pull-request>`__.
-
-Submitting a Patch
-~~~~~~~~~~~~~~~~~~
-
-1. It’s generally best to start by opening a new issue describing the
-   bug or feature you’re intending to fix. Even if you think it’s
-   relatively minor, it’s helpful to know what people are working on.
-   Mention in the initial issue that you are planning to work on that
-   bug or feature so that it can be assigned to you.
-2. Follow the normal process of
-   `forking <https://help.github.com/articles/fork-a-repo>`__ the
-   project, and setup a new branch to work in. It’s important that each
-   group of changes be done in separate branches in order to ensure that
-   a pull request only includes the commits related to that bug or
-   feature.
-3. Do your best to have `well-formed commit
-   messages <http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html>`__
-   for each change. This provides consistency throughout the project,
-   and ensures that commit messages are able to be formatted properly by
-   various git tools.
-4. Finally, push the commits to your fork and submit a `pull
-   request <https://help.github.com/articles/creating-a-pull-request>`__.
+Please refer to project's `documentation <https://google.github.io/glog/>`_.
 
 
 .. |Linux Github actions| image:: https://github.com/google/glog/actions/workflows/linux.yml/badge.svg
@@ -871,9 +19,5 @@ Submitting a Patch
    :target: https://github.com/google/glog/actions
 .. |macOS Github actions| image:: https://github.com/google/glog/actions/workflows/macos.yml/badge.svg
    :target: https://github.com/google/glog/actions
-.. |Total alerts| image:: https://img.shields.io/lgtm/alerts/g/google/glog.svg?logo=lgtm&logoWidth=18
-   :target: https://lgtm.com/projects/g/google/glog/alerts/
-.. |Language grade: C++| image:: https://img.shields.io/lgtm/grade/cpp/g/google/glog.svg?logo=lgtm&logoWidth=18)
-   :target: https://lgtm.com/projects/g/google/glog/context:cpp
 .. |Codecov| image:: https://codecov.io/gh/google/glog/branch/master/graph/badge.svg?token=8an420vNju
    :target: https://codecov.io/gh/google/glog

WORKSPACE

@@ -1,11 +0,0 @@
-load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
-
-http_archive(
-    name = "com_github_gflags_gflags",
-    sha256 = "34af2f15cf7367513b352bdcd2493ab14ce43692d2dcd9dfc499492966c64dcf",
-    strip_prefix = "gflags-2.2.2",
-    urls = [
-        "https://mirror.bazel.build/github.com/gflags/gflags/archive/v2.2.2.tar.gz",
-        "https://github.com/gflags/gflags/archive/v2.2.2.tar.gz",
-    ],
-)

WORKSPACE.bazel

@@ -0,0 +1 @@
+# WORKSPACE marker file needed by Bazel

bazel/example/BUILD.bazel

@@ -4,6 +4,6 @@ cc_test(
     srcs = ["main.cc"],
     deps = [
         "//:glog",
-        "@com_github_gflags_gflags//:gflags",
+        "@gflags//:gflags",
     ],
 )

bazel/glog.bzl

@@ -25,15 +25,9 @@ expand_template = rule(
     },
 )
 
-def dict_union(x, y):
-    z = {}
-    z.update(x)
-    z.update(y)
-    return z
-
-def glog_library(namespace = "google", with_gflags = 1, **kwargs):
+def glog_library(with_gflags = 1, **kwargs):
     if native.repository_name() != "@":
-        repo_name = native.repository_name().lstrip("@")
+        repo_name = native.repository_name()[1:]  # Strip the first leading @
         gendir = "$(GENDIR)/external/" + repo_name
         src_windows = "external/%s/src/windows" % repo_name
     else:
@@ -46,16 +40,16 @@ def glog_library(namespace = "google", with_gflags = 1, **kwargs):
         values = {"cpu": "wasm"},
     )
 
+    # Detect when building with clang-cl on Windows.
+    native.config_setting(
+        name = "clang-cl",
+        values = {"compiler": "clang-cl"},
+    )
+
     common_copts = [
-        "-DGLOG_BAZEL_BUILD",
-        # Inject a C++ namespace.
-        "-DGOOGLE_NAMESPACE='%s'" % namespace,
-        "-DHAVE_CXX11_NULLPTR_T",
-        "-DHAVE_STDINT_H",
-        "-DHAVE_STRING_H",
-        "-DGLOG_CUSTOM_PREFIX_SUPPORT",
+        "-std=c++14",
         "-I%s/glog_internal" % gendir,
-    ] + (["-DHAVE_LIB_GFLAGS"] if with_gflags else [])
+    ] + (["-DGLOG_USE_GFLAGS"] if with_gflags else [])
 
     wasm_copts = [
         # Disable warnings that exists in glog.
@@ -63,26 +57,32 @@ def glog_library(namespace = "google", with_gflags = 1, **kwargs):
         "-Wno-unused-function",
         "-Wno-unused-local-typedefs",
         "-Wno-unused-variable",
-        # Allows src/base/mutex.h to include pthread.h.
-        "-DHAVE_PTHREAD",
         # Allows src/logging.cc to determine the host name.
         "-DHAVE_SYS_UTSNAME_H",
         # For src/utilities.cc.
         "-DHAVE_SYS_TIME_H",
-        "-DHAVE_UNWIND_H",
+        # NOTE: users could optionally patch -DHAVE_UNWIND off if
+        # stacktrace dumping is not needed
+        "-DHAVE_UNWIND",
         # Enable dumping stacktrace upon sigaction.
         "-DHAVE_SIGACTION",
         # For logging.cc.
         "-DHAVE_PREAD",
-        "-DHAVE___ATTRIBUTE__",
+        # -DHAVE_MODE_T prevent repeated typedef mode_t leading
+        # to emcc compilation failure
+        "-DHAVE_MODE_T",
+        "-DHAVE_UNISTD_H",
     ]
 
     linux_or_darwin_copts = wasm_copts + [
         "-DGLOG_EXPORT=__attribute__((visibility(\\\"default\\\")))",
+        "-DGLOG_NO_EXPORT=__attribute__((visibility(\\\"default\\\")))",
+        "-DHAVE_POSIX_FADVISE",
+        "-DHAVE_SSIZE_T",
+        "-DHAVE_SYS_TYPES_H",
         # For src/utilities.cc.
         "-DHAVE_SYS_SYSCALL_H",
         # For src/logging.cc to create symlinks.
-        "-DHAVE_UNISTD_H",
         "-fvisibility-inlines-hidden",
         "-fvisibility=hidden",
     ]
@@ -90,44 +90,97 @@ def glog_library(namespace = "google", with_gflags = 1, **kwargs):
     freebsd_only_copts = [
         # Enable declaration of _Unwind_Backtrace
         "-D_GNU_SOURCE",
+        "-DHAVE_LINK_H",
+        "-DHAVE_SYMBOLIZE",  # Supported by <link.h>
+    ]
+
+    linux_only_copts = [
+        # For utilities.h.
+        "-DHAVE_EXECINFO_H",
+        "-DHAVE_LINK_H",
+        "-DHAVE_SYMBOLIZE",  # Supported by <link.h>
     ]
 
     darwin_only_copts = [
         # For stacktrace.
         "-DHAVE_DLADDR",
-        # Avoid deprecated syscall().
-        "-DHAVE_PTHREAD_THREADID_NP",
     ]
 
     windows_only_copts = [
+        # Override -DGLOG_EXPORT= from the cc_library's defines.
         "-DGLOG_EXPORT=__declspec(dllexport)",
         "-DGLOG_NO_ABBREVIATED_SEVERITIES",
-        "-DHAVE_SNPRINTF",
+        "-DGLOG_NO_EXPORT=",
+        "-DGLOG_USE_WINDOWS_PORT",
+        "-DHAVE__CHSIZE_S",
+        "-DHAVE_DBGHELP",
         "-I" + src_windows,
     ]
 
+    clang_cl_only_copts = [
+        # Allow the override of -DGLOG_EXPORT.
+        "-Wno-macro-redefined",
+    ]
+
     windows_only_srcs = [
-        "src/glog/log_severity.h",
         "src/windows/dirent.h",
         "src/windows/port.cc",
         "src/windows/port.h",
     ]
 
-    gflags_deps = ["@com_github_gflags_gflags//:gflags"] if with_gflags else []
+    gflags_deps = ["@gflags//:gflags"] if with_gflags else []
+
+    final_lib_defines = select({
+        # GLOG_EXPORT is normally set by export.h, but that's not
+        # generated for Bazel.
+        "@bazel_tools//src/conditions:windows": [
+            "GLOG_DEPRECATED=__declspec(deprecated)",
+            "GLOG_EXPORT=",
+            "GLOG_NO_ABBREVIATED_SEVERITIES",
+            "GLOG_NO_EXPORT=",
+        ],
+        "//conditions:default": [
+            "GLOG_DEPRECATED=__attribute__((deprecated))",
+            "GLOG_EXPORT=__attribute__((visibility(\\\"default\\\")))",
+            "GLOG_NO_EXPORT=__attribute__((visibility(\\\"default\\\")))",
+        ],
+    })
+
+    final_lib_copts = select({
+        "@bazel_tools//src/conditions:windows": common_copts + windows_only_copts,
+        "@bazel_tools//src/conditions:darwin": common_copts + linux_or_darwin_copts + darwin_only_copts,
+        "@bazel_tools//src/conditions:freebsd": common_copts + linux_or_darwin_copts + freebsd_only_copts,
+        ":wasm": common_copts + wasm_copts,
+        "//conditions:default": common_copts + linux_or_darwin_copts + linux_only_copts,
+    }) + select({
+        ":clang-cl": clang_cl_only_copts,
+        "//conditions:default": [],
+    })
+
+    # Needed to use these headers in `glog` and the test targets without exposing them as public targets in `glog`
+    native.filegroup(
+        name = "shared_headers",
+        srcs = [
+            "src/base/commandlineflags.h",
+            "src/stacktrace.h",
+            "src/utilities.h",
+        ]
+    )
 
     native.cc_library(
         name = "glog",
         visibility = ["//visibility:public"],
         srcs = [
             ":config_h",
-            "src/base/commandlineflags.h",
+            ":shared_headers",
             "src/base/googleinit.h",
-            "src/base/mutex.h",
             "src/demangle.cc",
             "src/demangle.h",
+            "src/flags.cc",
             "src/logging.cc",
             "src/raw_logging.cc",
             "src/signalhandler.cc",
+            "src/stacktrace.cc",
             "src/stacktrace.h",
             "src/stacktrace_generic-inl.h",
             "src/stacktrace_libunwind-inl.h",
@@ -145,39 +198,71 @@ def glog_library(namespace = "google", with_gflags = 1, **kwargs):
             "//conditions:default": [],
         }),
         hdrs = [
+            "src/glog/flags.h",
             "src/glog/log_severity.h",
+            "src/glog/logging.h",
             "src/glog/platform.h",
-            ":logging_h",
-            ":raw_logging_h",
-            ":stl_logging_h",
-            ":vlog_is_on_h",
+            "src/glog/raw_logging.h",
+            "src/glog/stl_logging.h",
+            "src/glog/types.h",
+            "src/glog/vlog_is_on.h",
         ],
+        # https://github.com/google/glog/issues/837: Replacing
+        # `strip_include_prefix` with `includes` would avoid spamming
+        # downstream projects with compiler warnings, but would also leak
+        # private headers like stacktrace.h, because strip_include_prefix's
+        # implementation only creates symlinks for the public hdrs. I suspect
+        # the only way to avoid this is to refactor the project including the
+        # CMake build, so that the private headers are in a glog_internal
+        # subdirectory.
         strip_include_prefix = "src",
-        defines = select({
-            # GLOG_EXPORT is normally set by export.h, but that's not
-            # generated for Bazel.
-            "@bazel_tools//src/conditions:windows": [
-                "GLOG_EXPORT=",
-                "GLOG_DEPRECATED=__declspec(deprecated)",
-                "GLOG_NO_ABBREVIATED_SEVERITIES",
-            ],
-            "//conditions:default": [
-                "GLOG_DEPRECATED=__attribute__((deprecated))",
-                "GLOG_EXPORT=__attribute__((visibility(\\\"default\\\")))",
-            ],
-        }),
-        copts =
-            select({
-                "@bazel_tools//src/conditions:windows": common_copts + windows_only_copts,
-                "@bazel_tools//src/conditions:darwin": common_copts + linux_or_darwin_copts + darwin_only_copts,
-                "@bazel_tools//src/conditions:freebsd": common_copts + linux_or_darwin_copts + freebsd_only_copts,
-                ":wasm": common_copts + wasm_copts,
-                "//conditions:default": common_copts + linux_or_darwin_copts,
-            }),
+        defines = final_lib_defines,
+        copts = final_lib_copts,
         deps = gflags_deps + select({
             "@bazel_tools//src/conditions:windows": [":strip_include_prefix_hack"],
             "//conditions:default": [],
         }),
+        linkopts = select({
+            "@bazel_tools//src/conditions:windows": ["dbghelp.lib"],
+            "//conditions:default": [],
+        }),
+        **kwargs
+    )
+
+    test_list = [
+        "cleanup_immediately",
+        "cleanup_with_absolute_prefix",
+        "cleanup_with_relative_prefix",
+        # "demangle", # Broken
+        # "logging", # Broken
+        # "mock-log", # Broken
+        # "signalhandler", # Pointless
+        "stacktrace",
+        "stl_logging",
+        # "symbolize", # Broken
+        "utilities",
+    ]
+
+    test_only_copts = [
+        "-DTEST_SRC_DIR=\\\"%s/tests\\\"" % gendir,
+    ]
+
+    for test_name in test_list:
+        native.cc_test(
+            name = test_name + "_test",
+            visibility = ["//visibility:public"],
+            srcs = [
+                ":config_h",
+                ":shared_headers",
+                "src/googletest.h",
+                "src/" + test_name + "_unittest.cc",
+            ],
+            defines = final_lib_defines,
+            copts = final_lib_copts + test_only_copts,
+            deps = gflags_deps + [
+                ":glog",
+                "@googletest//:gtest",
+            ],
             **kwargs
         )
 
@@ -186,11 +271,14 @@ def glog_library(namespace = "google", with_gflags = 1, **kwargs):
     native.cc_library(
         name = "strip_include_prefix_hack",
         hdrs = [
+            "src/glog/flags.h",
             "src/glog/log_severity.h",
-            ":logging_h",
-            ":raw_logging_h",
-            ":stl_logging_h",
-            ":vlog_is_on_h",
+            "src/glog/logging.h",
+            "src/glog/platform.h",
+            "src/glog/raw_logging.h",
+            "src/glog/stl_logging.h",
+            "src/glog/types.h",
+            "src/glog/vlog_is_on.h",
         ],
     )
 
@@ -200,61 +288,3 @@ def glog_library(namespace = "google", with_gflags = 1, **kwargs):
         out = "glog_internal/config.h",
         substitutions = {"#cmakedefine": "//cmakedefine"},
     )
-
-    common_config = {
-        "@ac_cv_cxx11_atomic@": "1",
-        "@ac_cv_cxx11_constexpr@": "1",
-        "@ac_cv_cxx11_chrono@": "1",
-        "@ac_cv_cxx11_nullptr_t@": "1",
-        "@ac_cv_cxx_using_operator@": "1",
-        "@ac_cv_have_inttypes_h@": "0",
-        "@ac_cv_have_u_int16_t@": "0",
-        "@ac_cv_have_glog_export@": "0",
-        "@ac_google_start_namespace@": "namespace google {",
-        "@ac_google_end_namespace@": "}",
-        "@ac_google_namespace@": "google",
-    }
-
-    posix_config = dict_union(common_config, {
-        "@ac_cv_have_unistd_h@": "1",
-        "@ac_cv_have_stdint_h@": "1",
-        "@ac_cv_have_systypes_h@": "1",
-        "@ac_cv_have_uint16_t@": "1",
-        "@ac_cv_have___uint16@": "0",
-        "@ac_cv_have___builtin_expect@": "1",
-        "@ac_cv_have_libgflags@": "1" if with_gflags else "0",
-        "@ac_cv___attribute___noinline@": "__attribute__((noinline))",
-        "@ac_cv___attribute___noreturn@": "__attribute__((noreturn))",
-        "@ac_cv___attribute___printf_4_5@": "__attribute__((__format__(__printf__, 4, 5)))",
-    })
-
-    windows_config = dict_union(common_config, {
-        "@ac_cv_have_unistd_h@": "0",
-        "@ac_cv_have_stdint_h@": "0",
-        "@ac_cv_have_systypes_h@": "0",
-        "@ac_cv_have_uint16_t@": "0",
-        "@ac_cv_have___uint16@": "1",
-        "@ac_cv_have___builtin_expect@": "0",
-        "@ac_cv_have_libgflags@": "0",
-        "@ac_cv___attribute___noinline@": "",
-        "@ac_cv___attribute___noreturn@": "__declspec(noreturn)",
-        "@ac_cv___attribute___printf_4_5@": "",
-    })
-
-    [
-        expand_template(
-            name = "%s_h" % f,
-            template = "src/glog/%s.h.in" % f,
-            out = "src/glog/%s.h" % f,
-            substitutions = select({
-                "@bazel_tools//src/conditions:windows": windows_config,
-                "//conditions:default": posix_config,
-            }),
-        )
-        for f in [
-            "vlog_is_on",
-            "stl_logging",
-            "raw_logging",
-            "logging",
-        ]
-    ]

cmake/GetCacheVariables.cmake

@@ -1,5 +1,5 @@
 cmake_policy (PUSH)
-cmake_policy (VERSION 3.3)
+cmake_policy (VERSION 3.16...3.27)
 
 include (CMakeParseArguments)
 

cmake/RunCleanerTest1.cmake

@@ -7,16 +7,20 @@ foreach (iter RANGE 1 ${RUNS})
   if (NOT _RESULT EQUAL 0)
     message (FATAL_ERROR "Failed to run logcleanup_unittest (error: ${_RESULT})")
   endif (NOT _RESULT EQUAL 0)
-
-  # Ensure the log files to have different modification timestamps such that
-  # exactly one log file remains at the end. Otherwise all log files will be
-  # retained.
-  execute_process (COMMAND ${CMAKE_COMMAND} -E sleep 1)
 endforeach (iter)
 
 file (GLOB LOG_FILES ${TEST_DIR}/*.foobar)
 list (LENGTH LOG_FILES NUM_FILES)
 
-if (NOT NUM_FILES EQUAL 1)
-  message (SEND_ERROR "Expected 1 log file in log directory but found ${NUM_FILES}")
-endif (NOT NUM_FILES EQUAL 1)
+if (WIN32)
+  # On Windows open files cannot be removed and will result in a permission
+  # denied error while unlinking such file. Therefore, the last file will be
+  # retained.
+  set (_expected 1)
+ else (WIN32)
+  set (_expected 0)
+endif (WIN32)
+
+if (NOT NUM_FILES EQUAL _expected)
+  message (SEND_ERROR "Expected ${_expected} log file in log directory but found ${NUM_FILES}")
+endif (NOT NUM_FILES EQUAL _expected)

cmake/RunCleanerTest2.cmake

@@ -7,16 +7,20 @@ foreach (iter RANGE 1 ${RUNS})
   if (NOT _RESULT EQUAL 0)
     message (FATAL_ERROR "Failed to run logcleanup_unittest (error: ${_RESULT})")
   endif (NOT _RESULT EQUAL 0)
-
-  # Ensure the log files to have different modification timestamps such that
-  # exactly one log file remains at the end. Otherwise all log files will be
-  # retained.
-  execute_process (COMMAND ${CMAKE_COMMAND} -E sleep 1)
 endforeach (iter)
 
 file (GLOB LOG_FILES ${TEST_DIR}/test_cleanup_*.barfoo)
 list (LENGTH LOG_FILES NUM_FILES)
 
-if (NOT NUM_FILES EQUAL 1)
-  message (SEND_ERROR "Expected 1 log file in build directory ${TEST_DIR} but found ${NUM_FILES}")
-endif (NOT NUM_FILES EQUAL 1)
+if (WIN32)
+  # On Windows open files cannot be removed and will result in a permission
+  # denied error while unlinking such file. Therefore, the last file will be
+  # retained.
+  set (_expected 1)
+ else (WIN32)
+  set (_expected 0)
+endif (WIN32)
+
+if (NOT NUM_FILES EQUAL _expected)
+  message (SEND_ERROR "Expected ${_expected} log file in log directory but found ${NUM_FILES}")
+endif (NOT NUM_FILES EQUAL _expected)

cmake/RunCleanerTest3.cmake

@@ -10,19 +10,23 @@ foreach (iter RANGE 1 ${RUNS})
   if (NOT _RESULT EQUAL 0)
     message (FATAL_ERROR "Failed to run logcleanup_unittest (error: ${_RESULT})")
   endif (NOT _RESULT EQUAL 0)
-
-  # Ensure the log files to have different modification timestamps such that
-  # exactly one log file remains at the end. Otherwise all log files will be
-  # retained.
-  execute_process (COMMAND ${CMAKE_COMMAND} -E sleep 2)
 endforeach (iter)
 
 file (GLOB LOG_FILES ${TEST_DIR}/${TEST_SUBDIR}/test_cleanup_*.relativefoo)
 list (LENGTH LOG_FILES NUM_FILES)
 
-if (NOT NUM_FILES EQUAL 1)
-  message (SEND_ERROR "Expected 1 log file in build directory ${TEST_DIR}${TEST_SUBDIR} but found ${NUM_FILES}")
-endif (NOT NUM_FILES EQUAL 1)
+if (WIN32)
+  # On Windows open files cannot be removed and will result in a permission
+  # denied error while unlinking such file. Therefore, the last file will be
+  # retained.
+  set (_expected 1)
+ else (WIN32)
+  set (_expected 0)
+endif (WIN32)
+
+if (NOT NUM_FILES EQUAL _expected)
+  message (SEND_ERROR "Expected ${_expected} log file in build directory ${TEST_DIR}${TEST_SUBDIR} but found ${NUM_FILES}")
+endif (NOT NUM_FILES EQUAL _expected)
 
 # Remove the subdirectory required by this unit test.
 file (REMOVE_RECURSE ${TEST_DIR}/${TEST_SUBDIR})

cmake/TestPackageConfig.cmake

@@ -1,13 +1,3 @@
-# Create the build directory
-execute_process (
-  COMMAND ${CMAKE_COMMAND} -E make_directory ${TEST_BINARY_DIR}
-  RESULT_VARIABLE _DIRECTORY_CREATED_SUCCEEDED
-)
-
-if (NOT _DIRECTORY_CREATED_SUCCEEDED EQUAL 0)
-  message (FATAL_ERROR "Failed to create build directory")
-endif (NOT _DIRECTORY_CREATED_SUCCEEDED EQUAL 0)
-
 if (GENERATOR_TOOLSET)
   list (APPEND _ADDITIONAL_ARGS -T ${GENERATOR_TOOLSET})
 endif (GENERATOR_TOOLSET)
@@ -21,7 +11,7 @@ execute_process (
   # Capture the PATH environment variable content set during project generation
   # stage. This is required because later during the build stage the PATH is
   # modified again (e.g., for MinGW AppVeyor CI builds) by adding back the
-  # directory containing git.exe. Incidently, the Git installation directory
+  # directory containing git.exe. Incidentally, the Git installation directory
   # also contains sh.exe which causes MinGW Makefile generation to fail.
   COMMAND ${CMAKE_COMMAND} -E env PATH=${PATH}
   ${CMAKE_COMMAND} -C ${INITIAL_CACHE}
@@ -29,9 +19,9 @@ execute_process (
     ${_ADDITIONAL_ARGS}
     -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON
     -DCMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY=ON
-    -DCMAKE_PREFIX_PATH=${PACKAGE_DIR}
-    ${SOURCE_DIR}
-  WORKING_DIRECTORY ${TEST_BINARY_DIR}
+    -Dglog_ROOT=${PACKAGE_DIR}
+    -S ${SOURCE_DIR}
+    -B ${TEST_BINARY_DIR}
   RESULT_VARIABLE _GENERATE_SUCCEEDED
 )
 

codecov.yml

@@ -0,0 +1,11 @@
+comment:
+  layout: "diff, flags, files"
+  behavior: default
+  require_changes: false
+  require_base: false
+  require_head: true
+ignore:
+  - "**/*_unittest.cc"
+  - "src/*_unittest/**"
+  - "src/googletest.h"
+  - "src/mock-log.h"

docs/build.md

@@ -0,0 +1,66 @@
+# Building from Source
+
+## Bazel
+
+To use glog within a project which uses the [Bazel](https://bazel.build/) build
+tool, add the following lines to your `MODULE.bazel` file:
+
+``` bazel title="MODULE.bazel"
+bazel_dep(name = "glog")
+
+archive_override(
+    module_name = "glog",
+    urls = "https://github.com/google/glog/archive/cc0de6c200375b33d907ee7632eee2f173b33a09.tar.gz",
+    strip_prefix = "glog-cc0de6c200375b33d907ee7632eee2f173b33a09",  # Latest commit as of 2024-06-08.
+    integrity = "sha256-rUrv4EBkdc+4Wbhfxp+KoRstlj2Iw842/OpLfDq0ivg=",
+)
+```
+
+You can then add `@glog//:glog` to
+the deps section of a `cc_binary` or
+`cc_library` rule, and `#!cpp #include <glog/logging.h>` to
+include it in your source code.
+
+!!! example "Using glog in a Bazel project"
+    ``` bazel
+    cc_binary(
+        name = "main",
+        srcs = ["main.cc"],
+        deps = ["@glog//:glog"],
+    )
+    ```
+
+## CMake
+
+glog can be compiled using [CMake](http://www.cmake.org) on a wide range of
+platforms. The typical workflow for building glog on a Unix-like system with GNU
+Make as build tool is as follows:
+
+1.  Clone the repository and change into source directory.
+  ``` bash
+  git clone https://github.com/google/glog.git
+  cd glog
+  ```
+2.  Run CMake to configure the build tree.
+  ``` bash
+  cmake -S . -B build -G "Unix Makefiles"
+  ```
+  CMake provides different generators, and by default will pick the most
+  relevant one to your environment. If you need a specific version of Visual
+  Studio, use `#!bash cmake . -G <generator-name>`, and see `#!bash cmake
+  --help` for the available generators. Also see `-T <toolset-name>`, which can
+  be used to request the native x64 toolchain with `-T host=x64`.
+3.  Afterwards, generated files can be used to compile the project.
+  ``` bash
+  cmake --build build
+  ```
+4.  Test the build software (optional).
+  ``` bash
+  cmake --build build --target test
+  ```
+5.  Install the built files (optional).
+  ``` bash
+  cmake --build build --target install
+  ```
+
+Once successfully built, glog can be [integrated into own projects](usage.md).

docs/contribute.md

@@ -0,0 +1,50 @@
+# How to Contribute
+
+We'd love to accept your patches and contributions to this project.
+There are a just a few small guidelines you need to follow.
+
+## Contributor License Agreement (CLA)
+
+Contributions to any Google project must be accompanied by a Contributor
+License Agreement. This is not a copyright **assignment**, it simply
+gives Google permission to use and redistribute your contributions as
+part of the project.
+
+-   If you are an individual writing original source code and you're
+    sure you own the intellectual property, then you'll need to sign an
+    [individual
+    CLA](https://developers.google.com/open-source/cla/individual).
+-   If you work for a company that wants to allow you to contribute your
+    work, then you'll need to sign a [corporate
+    CLA](https://developers.google.com/open-source/cla/corporate).
+
+You generally only need to submit a CLA once, so if you've already
+submitted one (even if it was for a different project), you probably
+don't need to do it again.
+
+Once your CLA is submitted (or if you already submitted one for another Google
+project), make a commit adding yourself to the
+[AUTHORS](https://github.com/google/glog/blob/master/AUTHORS) and
+[CONTRIBUTORS](https://github.com/google/glog/blob/master/CONTRIBUTORS) files.
+This commit can be part of your first [pull
+request](https://help.github.com/articles/creating-a-pull-request).
+
+## Submitting a Patch
+
+1.  It's generally best to start by opening a new issue describing the
+    bug or feature you're intending to fix. Even if you think it's
+    relatively minor, it's helpful to know what people are working on.
+    Mention in the initial issue that you are planning to work on that
+    bug or feature so that it can be assigned to you.
+2.  Follow the normal process of
+    [forking](https://help.github.com/articles/fork-a-repo) the project,
+    and setup a new branch to work in. It's important that each group of
+    changes be done in separate branches in order to ensure that a pull
+    request only includes the commits related to that bug or feature.
+3.  Do your best to have [well-formed commit
+    messages](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html)
+    for each change. This provides consistency throughout the project,
+    and ensures that commit messages are able to be formatted properly
+    by various git tools.
+4.  Finally, push the commits to your fork and submit a [pull
+    request](https://help.github.com/articles/creating-a-pull-request).

docs/failures.md

@@ -0,0 +1,73 @@
+# Failure Signal Handler
+
+## Stacktrace as Default Failure Handler
+
+The library provides a convenient signal handler that will dump useful
+information when the program crashes on certain signals such as `SIGSEGV`. The
+signal handler can be installed by `#!cpp
+google::InstallFailureSignalHandler()`. The following is an example of output
+from the signal handler.
+
+    *** Aborted at 1225095260 (unix time) try "date -d @1225095260" if you are using GNU date ***
+    *** SIGSEGV (@0x0) received by PID 17711 (TID 0x7f893090a6f0) from PID 0; stack trace: ***
+    PC: @           0x412eb1 TestWaitingLogSink::send()
+        @     0x7f892fb417d0 (unknown)
+        @           0x412eb1 TestWaitingLogSink::send()
+        @     0x7f89304f7f06 google::LogMessage::SendToLog()
+        @     0x7f89304f35af google::LogMessage::Flush()
+        @     0x7f89304f3739 google::LogMessage::~LogMessage()
+        @           0x408cf4 TestLogSinkWaitTillSent()
+        @           0x4115de main
+        @     0x7f892f7ef1c4 (unknown)
+        @           0x4046f9 (unknown)
+
+
+## Customizing Handler Output
+
+By default, the signal handler writes the failure dump to the standard error.
+However, it is possible to customize the destination by installing a callback
+using the `#!cpp google::InstallFailureWriter()` function. The function expects
+a pointer to a function with the following signature:
+
+``` cpp
+void YourFailureWriter(const char* message/* (1)! */, std::size_t length/* (2)! */);
+```
+
+1. The pointer references the start of the failure message.
+
+    !!! danger
+        The string is **not null-terminated**.
+
+2. The message length in characters.
+
+!!! warning "Possible overflow errors"
+    Users should not expect the `message` string to be null-terminated.
+
+## User-defined Failure Function
+
+`FATAL` severity level messages or unsatisfied `CHECK` condition
+terminate your program. You can change the behavior of the termination
+by `google::InstallFailureFunction`.
+
+``` cpp
+void YourFailureFunction() {
+  // Reports something...
+  exit(EXIT_FAILURE);
+}
+
+int main(int argc, char* argv[]) {
+  google::InstallFailureFunction(&YourFailureFunction);
+}
+```
+
+By default, glog tries to dump the stacktrace and calls `#!cpp std::abort`. The
+stacktrace is generated only when running the application on a system
+supported[^1] by glog.
+
+[^1]: To extract the stack trace, glog currently supports the following targets:
+
+    * x86, x86_64,
+    * PowerPC architectures,
+    * `libunwind`,
+    * and the Debug Help Library (`dbghelp`) on Windows.
+

docs/flags.md

@@ -0,0 +1,93 @@
+# Adjusting Output
+
+Several flags influence glog's output behavior.
+
+## Using Command-line Parameters and Environment Variables
+
+If the [Google gflags
+library](https://github.com/gflags/gflags) is installed on your machine,
+the build system will automatically detect and use it, allowing you to
+pass flags on the command line.
+
+!!! example "Activate `--logtostderr` in an application from the command line"
+    A binary `you_application` that uses glog can be started using
+    ``` bash
+    ./your_application --logtostderr=1
+    ```
+    to log to `stderr` instead of writing the output to a log file.
+
+!!! tip
+    You can set boolean flags to `true` by specifying `1`, `true`, or `yes`. To
+    set boolean flags to `false`, specify `0`, `false`, or `no`. In either case
+    the spelling is case-insensitive.
+
+
+If the Google gflags library isn't installed, you set flags via
+environment variables, prefixing the flag name with `GLOG_`, e.g.,
+
+!!! example "Activate `logtostderr` without gflags"
+    ``` bash
+    GLOG_logtostderr=1 ./your_application
+    ```
+
+The following flags are most commonly used:
+
+`logtostderr` (`bool`, default=`false`)
+
+:   Log messages to `stderr` instead of logfiles.
+
+`stderrthreshold` (`int`, default=2, which is `ERROR`)
+
+:   Copy log messages at or above this level to `stderr` in addition to
+    logfiles. The numbers of severity levels `INFO`, `WARNING`, `ERROR`,
+    and `FATAL` are 0, 1, 2, and 3, respectively.
+
+`minloglevel` (`int`, default=0, which is `INFO`)
+
+:   Log messages at or above this level. Again, the numbers of severity
+    levels `INFO`, `WARNING`, `ERROR`, and `FATAL` are 0, 1, 2, and 3,
+    respectively.
+
+`log_dir` (`string`, default="")
+
+:   If specified, logfiles are written into this directory instead of
+    the default logging directory.
+
+`v` (`int`, default=0)
+
+:   Show all `#!cpp VLOG(m)` messages for `m` less or equal the value of this
+    flag. Overridable by `#!bash --vmodule`. Refer to [verbose
+    logging](logging.md#verbose-logging) for more detail.
+
+`vmodule` (`string`, default="")
+
+:   Per-module verbose level. The argument has to contain a
+    comma-separated list of `<module name>=<log level>`. `<module name>` is a
+    glob pattern (e.g., `gfs*` for all modules whose name starts with "gfs"),
+    matched against the filename base (that is, name ignoring .cc/.h./-inl.h).
+    `<log level>` overrides any value given by `--v`. See also [verbose
+    logging](logging.md#verbose-logging) for more details.
+
+Additional flags are defined in
+[flags.cc](https://github.com/google/glog/blob/master/src/flags.cc). Please see
+the source for their complete list.
+
+## Modifying Flags Programmatically
+
+You can also modify flag values in your program by modifying global variables
+`FLAGS_*`. Most settings start working immediately after you update `FLAGS_*`.
+The exceptions are the flags related to destination files. For instance, you
+might want to set `FLAGS_log_dir` before calling `google::InitGoogleLogging`.
+
+!!! example "Setting `log_dir` at runtime"
+    ``` cpp
+    LOG(INFO) << "file";
+    // Most flags work immediately after updating values.
+    FLAGS_logtostderr = 1;
+    LOG(INFO) << "stderr";
+    FLAGS_logtostderr = 0;
+    // This won’t change the log destination. If you want to set this
+    // value, you should do this before google::InitGoogleLogging .
+    FLAGS_log_dir = "/some/log/directory";
+    LOG(INFO) << "the same file";
+    ```

docs/index.md

@@ -0,0 +1,30 @@
+# Google Logging Library
+
+Google Logging (glog) is a C++14 library that implements application-level
+logging. The library provides logging APIs based on C++-style streams and
+various helper macros.
+
+# How to Use
+
+You can log a message by simply streaming things to `LOG`(<a particular
+[severity level](logging.md#severity-levels)\>), e.g.,
+
+``` cpp title="main.cpp"
+#include <glog/logging.h>
+
+int main(int argc, char* argv[]) {
+    google::InitGoogleLogging(argv[0]); // (1)!
+    LOG(INFO) << "Found " << num_cookies << " cookies"; // (2)!
+}
+```
+
+1. Initialize the Google Logging Library
+2. Log a message with informational severity
+
+The library can be installed using various [package managers](packages.md) or
+compiled [from source](build.md). For a detailed overview of glog features and
+their usage, please refer to the [user guide](logging.md).
+
+!!! warning
+    The above example requires further [Bazel](build.md#bazel) or
+    [CMake](usage.md) setup for use in own projects.

docs/license.md

@@ -0,0 +1,3 @@
+# The 3-Clause BSD License
+
+--8<-- "LICENSE.md"

docs/log_cleaner.md

@@ -0,0 +1,24 @@
+# Automatically Remove Old Logs
+
+To enable the log cleaner:
+
+``` cpp
+using namespace std::chrono_literals;
+google::EnableLogCleaner(24h * 3); // keep your logs for 3 days
+```
+
+In C++20 (and later) this can be shortened to:
+
+``` cpp
+using namespace std::chrono_literals;
+google::EnableLogCleaner(3d); // keep your logs for 3 days
+```
+
+And then glog will check if there are overdue logs whenever a flush is
+performed. In this example, any log file from your project whose last
+modified time is greater than 3 days will be `unlink`()ed.
+
+This feature can be disabled at any time (if it has been enabled) using
+``` cpp
+google::DisableLogCleaner();
+```

docs/log_stripping.md

@@ -0,0 +1,20 @@
+# Strip Logging Messages
+
+Strings used in log messages can increase the size of your binary and
+present a privacy concern. You can therefore instruct glog to remove all
+strings which fall below a certain severity level by using the
+`GOOGLE_STRIP_LOG` macro:
+
+If your application has code like this:
+
+``` cpp
+#define GOOGLE_STRIP_LOG 1    // this must go before the #include!
+#include <glog/logging.h>
+```
+
+The compiler will remove the log messages whose severities are less than
+the specified integer value. Since `VLOG` logs at the severity level
+`INFO` (numeric value `0`), setting `GOOGLE_STRIP_LOG` to 1 or greater
+removes all log messages associated with `VLOG`s as well as `INFO` log
+statements.
+

docs/logging.md

@@ -0,0 +1,424 @@
+# Logging
+
+glog defines a series of macros that simplify many common logging tasks. You can
+log messages by [severity level](#severity-levels), [control logging](flags.md)
+behavior from the command line, log based on
+[conditionals](#conditional-occasional-logging), abort the program when
+[expected conditions](#runtime-checks) are not met, introduce your [own logging
+levels](#verbose-logging), [customize the prefix](#format-customization)
+attached to log messages, and more.
+
+
+## Severity Levels
+
+You can specify one of the following severity levels (in increasing order of
+severity):
+
+1.  `INFO`,
+2.  `WARNING`,
+3.  `ERROR`, and
+4.  `FATAL`.
+
+Logging a `FATAL` message terminates the program (after the message is logged).
+
+!!! note
+    Messages of a given severity are logged not only to corresponding severity
+    logfile but also to other logfiles of lower severity. For instance, a
+    message of severity `FATAL` will be logged to logfiles of severity `FATAL`,
+    `ERROR`, `WARNING`, and `INFO`.
+
+The `DFATAL` severity logs a `FATAL` error in [debug mode](#debugging-support)
+(i.e., there is no `NDEBUG` macro defined), but avoids halting the program in
+production by automatically reducing the severity to `ERROR`.
+
+## Log Files
+
+Unless otherwise specified, glog uses the format
+
+    <tmp>/<program name>.<hostname>.<user name>.log.<severity level>.<date>-<time>.<pid>
+
+for log filenames written to a directory designated as `<tmp>` and
+determined according to the following rules.
+
+**Windows**
+
+:   glog uses the
+    [GetTempPathA](https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-gettemppatha)
+    API function to retrieve the directory for temporary files with a
+    fallback to
+
+    1.  `C:\TMP\`
+    2.  `C:\TEMP\`
+
+    (in the order given.)
+
+**non-Windows**
+
+:   The directory is determined by referencing the environment variables
+
+    1.  `TMPDIR`
+    2.  `TMP`
+
+    if set with a fallback to `/tmp/`.
+
+The default path to a log file on Linux, for instance, could be
+
+    /tmp/hello_world.example.com.hamaji.log.INFO.20080709-222411.10474
+
+By default, glog echos `ERROR` and `FATAL` messages to standard error in
+addition to log files.
+
+## Log Line Prefix Format
+
+Log lines have this form:
+
+    Lyyyymmdd hh:mm:ss.uuuuuu threadid file:line] msg...
+
+where the fields are defined as follows:
+
+  | Placeholder         | Meaning                                                               |
+  | ------------------- | ----------------------------------------------------------------------|
+  | `L`                 | A single character, representing the log level (e.g., `I` for `INFO`) |
+  | `yyyy`              | The year                                                              |
+  | `mm`                | The month (zero padded; i.e., May is `05`)                            |
+  | `dd`                | The day (zero padded)                                                 |
+  | `hh:mm:ss.uuuuuu`   | Time in hours, minutes and fractional seconds                         |
+  | `threadid`          | The space-padded thread ID                                            |
+  | `file`              | The file name                                                         |
+  | `line`              | The line number                                                       |
+  | `msg`               | The user-supplied message                                             |
+
+!!! example "Default log line prefix format"
+
+    ```
+    I1103 11:57:31.739339 24395 google.cc:2341] Command line: ./some_prog
+    I1103 11:57:31.739403 24395 google.cc:2342] Process id 24395
+    ```
+
+!!! note
+    Although microseconds are useful for comparing events on a single machine,
+    clocks on different machines may not be well synchronized. Hence, use with
+    caution when comparing the low bits of timestamps from different machines.
+
+### Format Customization
+
+The predefined log line prefix can be replaced using a user-provided callback
+that formats the corresponding output.
+
+For each log entry, the callback will be invoked with a reference to a
+`google::LogMessage` instance containing the severity, filename, line
+number, thread ID, and time of the event. It will also be given a
+reference to the output stream, whose contents will be prepended to the actual
+message in the final log line.
+
+To enable the use of a prefix formatter, use the
+
+``` cpp
+google::InstallPrefixFormatter(&MyPrefixFormatter);
+```
+
+function to pass a pointer to the corresponding `MyPrefixFormatter` callback
+during initialization. `InstallPrefixFormatter` takes a second optional argument
+of type `#!cpp void*` that allows supplying user data to the callback.
+
+!!! example "Custom prefix formatter"
+    The following function outputs a prefix that matches glog's default format.
+    The third parameter `data` can be used to access user-supplied data which
+    unless specified defaults to `#!cpp nullptr`.
+
+    ``` cpp
+    void MyPrefixFormatter(std::ostream& s, const google::LogMessage& m, void* /*data*/) {
+       s << google::GetLogSeverityName(m.severity())[0]
+       << setw(4) << 1900 + m.time().year()
+       << setw(2) << 1 + m.time().month()
+       << setw(2) << m.time().day()
+       << ' '
+       << setw(2) << m.time().hour() << ':'
+       << setw(2) << m.time().min()  << ':'
+       << setw(2) << m.time().sec() << "."
+       << setw(6) << m.time().usec()
+       << ' '
+       << setfill(' ') << setw(5)
+       << m.thread_id() << setfill('0')
+       << ' '
+       << m.basename() << ':' << m.line() << "]";
+    }
+    ```
+
+
+## Conditional / Occasional Logging
+
+Sometimes, you may only want to log a message under certain conditions.
+You can use the following macros to perform conditional logging:
+
+``` cpp
+LOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
+```
+
+The "Got lots of cookies" message is logged only when the variable
+`num_cookies` exceeds 10. If a line of code is executed many times, it may be
+useful to only log a message at certain intervals. This kind of logging is most
+useful for informational messages.
+
+``` cpp
+LOG_EVERY_N(INFO, 10) << "Got the " << google::COUNTER << "th cookie";
+```
+
+The above line outputs a log messages on the 1st, 11th, 21st, ... times
+it is executed.
+
+!!! note
+    The placeholder `#!cpp google::COUNTER` identifies the recurring repetition.
+
+You can combine conditional and occasional logging with the following
+macro.
+
+``` cpp
+LOG_IF_EVERY_N(INFO, (size > 1024), 10) << "Got the " << google::COUNTER
+                                        << "th big cookie";
+```
+
+Instead of outputting a message every nth time, you can also limit the
+output to the first n occurrences:
+
+``` cpp
+LOG_FIRST_N(INFO, 20) << "Got the " << google::COUNTER << "th cookie";
+```
+
+Outputs log messages for the first 20 times it is executed. The `#!cpp
+google::COUNTER` identifier indicates which repetition is happening.
+
+Other times, it is desired to only log a message periodically based on a
+time. For instance, to log a message every 10ms:
+
+``` cpp
+LOG_EVERY_T(INFO, 0.01) << "Got a cookie";
+```
+
+Or every 2.35s:
+
+``` cpp
+LOG_EVERY_T(INFO, 2.35) << "Got a cookie";
+```
+
+## Verbose Logging
+
+When you are chasing difficult bugs, thorough log messages are very
+useful. However, you may want to ignore too verbose messages in usual
+development. For such verbose logging, glog provides the `VLOG` macro, which
+allows you to define your own numeric logging levels.
+
+The `#!bash --v` command line option controls which verbose messages are logged:
+
+``` cpp
+VLOG(1) << "I’m printed when you run the program with --v=1 or higher";
+VLOG(2) << "I’m printed when you run the program with --v=2 or higher";
+```
+
+With `VLOG`, the lower the verbose level, the more likely messages are to be
+logged. For example, if `#!bash --v==1`, `#!cpp VLOG(1)` will log, but `#!cpp
+VLOG(2)` will not log.
+
+!!! warning
+    The `VLOG` behavior is opposite of the severity level logging, where
+    `INFO`, `ERROR`, etc. are defined in increasing order and thus
+    `#!bash --minloglevel` of 1 will only log `WARNING` and above.
+
+Though you can specify any integers for both `VLOG` macro and `--v` flag, the
+common values for them are small positive integers. For example, if you write
+`#!cpp VLOG(0)`, you should specify `--v=-1` or lower to silence it. This is less
+useful since we may not want verbose logs by default in most cases. The `VLOG`
+macros always log at the `INFO` log level (when they log at all).
+
+Verbose logging can be controlled from the command line on a per-module basis:
+
+``` bash
+--vmodule=mapreduce=2,file=1,gfs*=3 --v=0
+```
+
+Specifying these options will specifically:
+
+1.  Print `#!cpp VLOG(2)` and lower messages from mapreduce.{h,cc}
+2.  Print `#!cpp VLOG(1)` and lower messages from file.{h,cc}
+3.  Print `#!cpp VLOG(3)` and lower messages from files prefixed with "gfs"
+4.  Print `#!cpp VLOG(0)` and lower messages from elsewhere
+
+The wildcarding functionality 3. supports both `*` (matches 0 or more
+characters) and `?` (matches any single character) wildcards. Please also refer
+to [command line flags](flags.md) for more information.
+
+There's also `#!cpp VLOG_IS_ON(n)` "verbose level" condition macro. This macro
+returns `#!cpp true` when the `--v` is equal to or greater than `n`. The macro can be
+used as follows:
+
+``` cpp
+if (VLOG_IS_ON(2)) {
+    // (1)
+}
+```
+
+1. Here we can perform some logging preparation and logging that can’t be
+   accomplished with just `#!cpp VLOG(2) << "message ...";`
+
+Verbose level condition macros `VLOG_IF`, `VLOG_EVERY_N` and `VLOG_IF_EVERY_N`
+behave analogous to `LOG_IF`, `LOG_EVERY_N`, `LOG_IF_EVERY_N`, but accept a
+numeric verbosity level as opposed to a severity level.
+
+``` cpp
+VLOG_IF(1, (size > 1024))
+   << "I’m printed when size is more than 1024 and when you run the "
+      "program with --v=1 or more";
+VLOG_EVERY_N(1, 10)
+   << "I’m printed every 10th occurrence, and when you run the program "
+      "with --v=1 or more. Present occurrence is " << google::COUNTER;
+VLOG_IF_EVERY_N(1, (size > 1024), 10)
+   << "I’m printed on every 10th occurrence of case when size is more "
+      " than 1024, when you run the program with --v=1 or more. ";
+      "Present occurrence is " << google::COUNTER;
+```
+
+
+!!! info "Performance"
+    The conditional logging macros provided by glog (e.g., `CHECK`, `LOG_IF`,
+    `VLOG`, etc.) are carefully implemented and don't execute the right hand
+    side expressions when the conditions are false. So, the following check may
+    not sacrifice the performance of your application.
+
+    ``` cpp
+    CHECK(obj.ok) << obj.CreatePrettyFormattedStringButVerySlow();
+    ```
+
+## Debugging Support
+
+Special debug mode logging macros only have an effect in debug mode and are
+compiled away to nothing for non-debug mode compiles. Use these macros to avoid
+slowing down your production application due to excessive logging.
+
+``` cpp
+DLOG(INFO) << "Found cookies";
+DLOG_IF(INFO, num_cookies > 10) << "Got lots of cookies";
+DLOG_EVERY_N(INFO, 10) << "Got the " << google::COUNTER << "th cookie";
+DLOG_FIRST_N(INFO, 10) << "Got the " << google::COUNTER << "th cookie";
+DLOG_EVERY_T(INFO, 0.01) << "Got a cookie";
+```
+
+## Runtime Checks
+
+It is a good practice to check expected conditions in your program
+frequently to detect errors as early as possible. The `CHECK` macro
+provides the ability to abort the application when a condition is not met,
+similar to the `assert` macro defined in the standard C library.
+
+`CHECK` aborts the application if a condition is not true. Unlike
+`assert`, it is **not** controlled by `NDEBUG`, so the check will be executed
+regardless of compilation mode. Therefore, `fp->Write(x)` in the following
+example is always executed:
+
+``` cpp
+CHECK(fp->Write(x) == 4) << "Write failed!";
+```
+
+There are various helper macros for equality/inequality checks
+-`CHECK_EQ`, `CHECK_NE`, `CHECK_LE`, `CHECK_LT`, `CHECK_GE`, and
+`CHECK_GT`. They compare two values, and log a `FATAL` message including the two
+values when the result is not as expected. The values must have
+`#!cpp operator<<(ostream, ...)` defined.
+
+You may append to the error message like so:
+
+``` cpp
+CHECK_NE(1, 2) << ": The world must be ending!";
+```
+
+We are very careful to ensure that each argument is evaluated exactly
+once, and that anything which is legal to pass as a function argument is legal
+here. In particular, the arguments may be temporary expressions which will end
+up being destroyed at the end of the apparent statement, for example:
+
+``` cpp
+CHECK_EQ(string("abc")[1], ’b’);
+```
+
+The compiler reports an error if one of the arguments is a pointer and the other
+is `#!cpp nullptr`. To work around this, simply `#!cpp static_cast` `#!cpp
+nullptr` to the type of the desired pointer.
+
+``` cpp
+CHECK_EQ(some_ptr, static_cast<SomeType*>(nullptr));
+```
+
+Better yet, use the `CHECK_NOTNULL` macro:
+
+``` cpp
+CHECK_NOTNULL(some_ptr);
+some_ptr->DoSomething();
+```
+
+Since this macro returns the given pointer, this is very useful in
+constructor initializer lists.
+
+``` cpp
+struct S {
+    S(Something* ptr) : ptr_(CHECK_NOTNULL(ptr)) {}
+    Something* ptr_;
+};
+```
+
+!!! warning
+    Due to the argument forwarding, `CHECK_NOTNULL` cannot be used to
+    simultaneously stream an additional custom message. To provide a custom
+    message, one can use the macro `CHECK_EQ` prior to the failing check.
+
+If you are comparing C strings (`#!cpp char *`), a handy set of macros performs
+both case sensitive and insensitive comparisons - `CHECK_STREQ`, `CHECK_STRNE`,
+`CHECK_STRCASEEQ`, and `CHECK_STRCASENE`. The `CHECK_*CASE*` macro variants are
+case-insensitive. You can safely pass `#!cpp nullptr` pointers to this macro.
+They treat `#!cpp nullptr` and any non-`#!cpp nullptr` string as not equal. Two
+`#!cpp nullptr`s are equal.
+
+!!! note
+    Both arguments may be temporary objects which are destructed at the
+    end of the current *full expression*, such as
+
+    ``` cpp
+    CHECK_STREQ(Foo().c_str(), Bar().c_str());
+    ```
+
+    where `Foo` and `Bar` return `std::string`.
+
+The `CHECK_DOUBLE_EQ` macro checks the equality of two floating point values,
+accepting a small error margin. `CHECK_NEAR` accepts a third floating point
+argument, which specifies the acceptable error margin.
+
+
+## Raw Logging
+
+The header file `<glog/raw_logging.h>` can be used for thread-safe logging,
+which does not allocate any memory or acquire any locks. Therefore, the macros
+defined in this header file can be used by low-level memory allocation and
+synchronization code. Please check
+[src/glog/raw_logging.h](https://github.com/google/glog/blob/master/src/glog/raw_logging.h)
+for detail.
+
+## Google Style `perror()`
+
+`PLOG()` and `PLOG_IF()` and `PCHECK()` behave exactly like their `LOG*` and
+`CHECK` equivalents with the addition that they append a description of the
+current state of `errno` to their output lines. E.g.
+
+``` cpp
+PCHECK(write(1, nullptr, 2) >= 0) << "Write nullptr failed";
+```
+
+This check fails with the following error message.
+
+    F0825 185142 test.cc:22] Check failed: write(1, nullptr, 2) >= 0 Write nullptr failed: Bad address [14]
+
+## Syslog
+
+`SYSLOG`, `SYSLOG_IF`, and `SYSLOG_EVERY_N` macros are available. These log to
+syslog in addition to the normal logs. Be aware that logging to syslog can
+drastically impact performance, especially if syslog is configured for remote
+logging! Make sure you understand the implications of outputting to syslog
+before you use these macros. In general, it's wise to use these macros
+sparingly.

docs/overrides/main.html

@@ -0,0 +1,8 @@
+{% extends "base.html" %}
+
+{% block outdated %}
+  You're not viewing the latest version.
+  <a href="{{ '../' ~ base_url }}">
+    <strong>Click here to go to latest.</strong>
+  </a>
+{% endblock %}

docs/packages.md

@@ -0,0 +1,34 @@
+# Installation using Package Managers
+
+## conan
+
+You can download and install glog using the [conan](https://conan.io)
+package manager:
+
+``` bash
+pip install conan
+conan install -r conancenter glog/<glog-version>@
+```
+
+The glog recipe in conan center is kept up to date by conan center index
+community contributors. If the version is out of date, please create an
+issue or pull request on the
+[conan-center-index](https://github.com/conan-io/conan-center-index)
+repository.
+
+## vcpkg
+
+You can download and install glog using the
+[vcpkg](https://github.com/Microsoft/vcpkg) dependency manager:
+
+``` bash
+git clone https://github.com/Microsoft/vcpkg.git
+cd vcpkg
+./bootstrap-vcpkg.sh
+./vcpkg integrate install
+./vcpkg install glog
+```
+
+The glog port in vcpkg is kept up to date by Microsoft team members and
+community contributors. If the version is out of date, please create an
+issue or pull request on the vcpkg repository.

docs/requirements.txt

@@ -0,0 +1,6 @@
+mike>=2.1.1
+mkdocs-git-committers-plugin-2>=2.3.0
+mkdocs-git-revision-date-localized-plugin>=1.2.6
+mkdocs-material-extensions>=1.3.1
+mkdocs-material>=9.5.26
+mkdocs>=1.6.0

docs/sinks.md

@@ -0,0 +1,84 @@
+# Custom Sinks
+
+Under certain circumstances, it is useful to send the log output to a
+destination other than a file, `stderr` and/or `stdout`. In case, the library
+provides the `#!cpp google::LogSink` interface whose implementations can be used
+to write the log output to arbitrary locations.
+
+## Basic Interface
+
+The sink interface is defined as follows:
+
+``` cpp
+class LogSink {
+ public:
+  virtual void send(LogSeverity severity, const char* full_filename,
+                    const char* base_filename, int line,
+                    const LogMessageTime& time, const char* message,
+                    size_t message_len);
+};
+```
+
+The user must implement `#!cpp google::LogSink::send`, which is called by the
+library every time a message is logged.
+
+!!! warning "Possible deadlock due to nested logging"
+    This method can't use `LOG()` or `CHECK()` as logging system mutex(s) are
+    held during this call.
+
+## Registering Log Sinks
+
+To use the custom sink and instance of the above interface implementation must
+be registered using `google::AddLogSink` which expects a pointer to the
+`google::LogSink` instance. To unregister use `google::RemoveLogSink`. Both
+functions are thread-safe.
+
+!!! danger "`LogSink` ownership"
+    The `google::LogSink` instance must not be destroyed until the referencing
+    pointer is unregistered.
+
+## Direct Logging
+
+Instead of registering the sink, we can directly use to log messages. While `#!
+LOG_TO_SINK(sink, severity)` allows to log both to the sink and to a global log
+registry, e.g., a file, `#!cpp LOG_TO_SINK_BUT_NOT_TO_LOGFILE(sink, severity)`
+will avoid the latter.
+
+!!! example "Using a custom sink"
+    ``` cpp title="custom_sink.cc"
+    -8<- "examples/custom_sink.cc:33:"
+    ```
+
+    1. `MySink` implements a custom sink that sends log messages to `std::cout`.
+    2. The custom sink must be registered to for use with existing logging
+       macros.
+    3. Once the custom sink is no longer needed we remove it from the registry.
+    4. A sink does not need to be registered globally. However, then, messages
+       must be logged using dedicated macros.
+
+    Running the above example as `#!bash GLOG_log_dir=. ./custom_sink_example`
+    will produce
+
+    <div class="annotate" markdown>
+
+    ``` title="Custom sink output"
+    INFO custom_sink.cc:63 logging to MySink
+    INFO custom_sink.cc:68 direct logging
+    INFO custom_sink.cc:69 direct logging but not to file (1)
+    ```
+
+    </div>
+
+    1. This line is not present in the log file because we used
+       `LOG_TO_SINK_BUT_NOT_TO_LOGFILE` to log the message.
+
+    and the corresponding log file will contain
+
+    ``` title="Log file generated with the custom sink"
+    Log file created at: 2024/06/11 13:24:27
+    Running on machine: pc
+    Running duration (h:mm:ss): 0:00:00
+    Log line format: [IWEF]yyyymmdd hh:mm:ss.uuuuuu threadid file:line] msg
+    I20240611 13:24:27.476620 126237946035776 custom_sink.cc:63] logging to MySink
+    I20240611 13:24:27.476796 126237946035776 custom_sink.cc:68] direct logging
+    ```

docs/unwinder.md

@@ -0,0 +1,57 @@
+# Installation Notes for 64-bit Linux Systems
+
+!!! note
+    The description on this page is possibly not up-to-date.
+
+The [glibc built-in stack-unwinder](#glibc-built-in-stack-unwinder) on 64-bit
+systems has some problems with glog. In particular, if you are using
+[`InstallFailureSignalHandler()`](failures.md), the signal may be raised in the
+middle of `malloc`, holding some `malloc`-related locks when they invoke the
+stack unwinder. The built-in stack unwinder may call `malloc` recursively, which
+may require the thread to acquire a lock it already holds resulting in a
+deadlock.
+
+## Recommended Approach: `libunwind`
+
+For above reason, if you use a 64-bit system and you need
+`InstallFailureSignalHandler()`, we strongly recommend you install `libunwind`
+before trying to configure or install google glog. libunwind can be found
+[here](http://download.savannah.nongnu.org/releases/libunwind/libunwind-snap-070410.tar.gz).
+
+Even if you already have `libunwind` installed, you will probably still need to
+install from the snapshot to get the latest version.
+
+!!! warning
+    If you install libunwind from the URL above, be aware that you may have
+    trouble if you try to statically link your binary with glog: that is, if you
+    link with `gcc -static -lgcc_eh ...`. This is because both `libunwind` and
+    `libgcc` implement the same C++ exception handling APIs, but they implement
+    them differently on some platforms. This is not likely to be a problem on
+    ia64, but may be on x86-64.
+
+Also, if you link binaries statically, make sure that you add
+`-Wl,--eh-frame-hdr` to your linker options. This is required so that
+`libunwind` can find the information generated by the compiler required for
+stack unwinding.
+
+Using `-static` is rare, though, so unless you know this will affect you it
+probably won't.
+
+## Alternative Stack-unwinder
+
+If you cannot or do not wish to install `libunwind`, you can still try to use
+two kinds of stack-unwinder:
+
+### glibc Built-in Stack-unwinder
+
+As we already mentioned, glibc's unwinder has a deadlock issue. However, if you
+don't use `InstallFailureSignalHandler()` or you don't worry about the rare
+possibilities of deadlocks, you can use this stack-unwinder. If you specify no
+options and `libunwind` isn't detected on your system, the configure script
+chooses this unwinder by default.
+
+### Frame Pointer based Stack-unwinder
+
+The frame pointer based stack unwinder requires that your application, the glog
+library, and system libraries like libc, all be compiled with a frame pointer.
+This is *not* the default for x86-64.

docs/usage.md

@@ -0,0 +1,24 @@
+# Using glog in a CMake Project
+
+Assuming that glog was previously [built using CMake](build.md#cmake) or
+installed using a package manager, you can use the CMake command `#!cmake
+find_package` to build against glog in your CMake project as follows:
+
+``` cmake title="CMakeLists.txt"
+cmake_minimum_required (VERSION 3.16)
+project (myproj VERSION 1.0)
+
+find_package (glog 0.8.0 REQUIRED)
+
+add_executable (myapp main.cpp)
+target_link_libraries (myapp glog::glog)
+```
+
+Compile definitions and options will be added automatically to your target as
+needed.
+
+Alternatively, glog can be incorporated into using the CMake command `#!cmake
+add_subdirectory` to include glog directly from a subdirectory of your project
+by replacing the `#!cmake find_package` call from the previous snippet by
+`add_subdirectory`. The `#!cmake glog::glog` target is in this case an `#!cmake
+ALIAS` library target for the `glog` library target.

docs/windows.md

@@ -0,0 +1,44 @@
+# Notes for Windows Users
+
+glog defines the severity level `ERROR`, which is also defined by `windows.h`.
+You can make glog not define `INFO`, `WARNING`, `ERROR`, and `FATAL` by defining
+`GLOG_NO_ABBREVIATED_SEVERITIES` before including `glog/logging.h`. Even with
+this macro, you can still use the iostream like logging facilities:
+
+``` cpp
+#define GLOG_NO_ABBREVIATED_SEVERITIES
+#include <windows.h>
+#include <glog/logging.h>
+
+// ...
+
+LOG(ERROR) << "This should work";
+LOG_IF(ERROR, x > y) << "This should be also OK";
+```
+
+However, you cannot use `INFO`, `WARNING`, `ERROR`, and `FATAL` anymore for
+functions defined in `glog/logging.h`.
+
+``` cpp
+#define GLOG_NO_ABBREVIATED_SEVERITIES
+#include <windows.h>
+#include <glog/logging.h>
+
+// ...
+
+// This won’t work.
+// google::FlushLogFiles(google::ERROR);
+
+// Use this instead.
+google::FlushLogFiles(google::GLOG_ERROR);
+```
+
+If you don't need `ERROR` defined by `windows.h`, there are a couple of more
+workarounds which sometimes don't work[^1]:
+
+-  `#!cpp #define WIN32_LEAN_AND_MEAN` or `NOGDI` **before**
+   `#!cpp #include <windows.h>`.
+-  `#!cpp #undef ERROR` **after** `#!cpp #include <windows.h>`.
+
+[^1]: For more information refer to [this
+      issue](http://code.google.com/p/google-glog/issues/detail?id=33).

examples/custom_sink.cc

@@ -0,0 +1,71 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sergiu Deitsch
+//
+
+#include <glog/logging.h>
+
+#include <algorithm>
+#include <cstddef>
+#include <iostream>
+#include <iterator>
+
+namespace {
+
+struct MyLogSink : google::LogSink {  // (1)!
+  void send(google::LogSeverity severity, const char* /*full_filename*/,
+            const char* base_filename, int line,
+            const google::LogMessageTime& /*time*/, const char* message,
+            std::size_t message_len) override {
+    std::cout << google::GetLogSeverityName(severity) << ' ' << base_filename
+              << ':' << line << ' ';
+    std::copy_n(message, message_len,
+                std::ostreambuf_iterator<char>{std::cout});
+    std::cout << '\n';
+  }
+};
+
+}  // namespace
+
+int main(int /*argc*/, char** argv) {
+  google::InitGoogleLogging(argv[0]);
+
+  MyLogSink sink;
+  google::AddLogSink(&sink);  // (2)!
+
+  LOG(INFO) << "logging to MySink";
+
+  google::RemoveLogSink(&sink);  // (3)!
+
+  // We can directly log to a sink without registering it
+  LOG_TO_SINK(&sink, INFO) << "direct logging";  // (4)!
+  LOG_TO_SINK_BUT_NOT_TO_LOGFILE(&sink, INFO)
+      << "direct logging but not to file";
+}

gcovr.cfg

@@ -0,0 +1,8 @@
+exclude = src/.*_unittest\.cc
+exclude = src/googletest\.h
+exclude = src/mock-log\.h
+exclude-directories = Tests/
+exclude-throw-branches = yes
+exclude-unreachable-branches = yes
+filter = .*/glog/.*\.h
+filter = src/

glog-config.cmake.in

@@ -7,6 +7,8 @@ endif (CMAKE_VERSION VERSION_LESS @glog_CMake_VERSION@)
 include (CMakeFindDependencyMacro)
 include (${CMAKE_CURRENT_LIST_DIR}/glog-modules.cmake)
 
+find_dependency (Threads)
+
 @gflags_DEPENDENCY@
 @Unwind_DEPENDENCY@
 

mkdocs.yml

@@ -0,0 +1,123 @@
+---
+site_name: Google Logging Library
+site_url: https://google.github.io/glog/
+repo_url: https://github.com/google/glog
+repo_name: google/glog
+edit_uri: edit/master/docs/
+copyright: Copyright &copy; 2024 Google Inc. &amp; contributors - <a href="#__consent">Change cookie settings</a>
+markdown_extensions:
+  - admonition
+  - attr_list
+  - def_list
+  - footnotes
+  - md_in_html
+  - pymdownx.details
+  - pymdownx.highlight:
+      anchor_linenums: true
+      line_spans: __span
+      pygments_lang_class: true
+  - pymdownx.inlinehilite
+  - pymdownx.snippets:
+      base_path:
+        - '.'
+      check_paths: true
+  - pymdownx.superfences
+  - tables
+  - toc:
+      permalink: true
+theme:
+  name: material
+  custom_dir: docs/overrides
+  icon:
+    annotation: material/chevron-right-circle
+    edit: material/pencil
+    repo: fontawesome/brands/git-alt
+    view: material/eye
+  language: en
+  features:
+    - content.action.edit
+    - content.code.annotate
+    - content.code.copy
+    - content.code.select
+    - header.autohide
+    - navigation.expand
+    - navigation.instant.preview
+    - navigation.instant.progress
+    - navigation.prune
+    - navigation.indexes
+    - toc.follow
+    - navigation.top
+    - navigation.path
+    # - navigation.sections
+    # - navigation.tabs
+    # - navigation.tabs.sticky
+    - navigation.tracking
+    - search.highlight
+    - search.share
+    - search.suggest
+  palette:
+    # Palette toggle for automatic mode
+    - media: "(prefers-color-scheme)"
+      toggle:
+        icon: material/brightness-auto
+        name: Switch to light mode
+    # Palette toggle for light mode
+    - media: "(prefers-color-scheme: light)"
+      scheme: default
+      primary: teal
+      accent: green
+      toggle:
+        icon: material/brightness-7
+        name: Switch to dark mode
+    # Palette toggle for dark mode
+    - media: "(prefers-color-scheme: dark)"
+      scheme: slate
+      primary: black
+      toggle:
+        icon: material/brightness-4
+        name: Switch to system preference
+plugins:
+  - git-revision-date-localized:
+      enable_creation_date: true
+  - git-committers:
+      repository: google/glog
+      branch: master
+  - privacy
+  - search
+  - tags
+extra:
+  version:
+    alias: true
+    default:
+      - dev
+      - stable
+    provider: mike
+  consent:
+    actions:
+      - manage
+      - accept
+      - reject
+    title: Cookie consent
+    description: >-
+      We use cookies to recognize your repeated visits and preferences, as well
+      as to measure the effectiveness of our documentation and whether users
+      find what they're searching for. With your consent, you're helping us to
+      make our documentation better.
+nav:
+  - Getting Started:
+      - Overview: index.md
+      - Usage in CMake Projects: usage.md
+      - Building from Source: build.md
+      - Installation using Package Managers: packages.md
+  - User Guide:
+      - Logging: logging.md
+      - Adjusting Output: flags.md
+      - Custom Sinks: sinks.md
+      - Failure Handler: failures.md
+      - Log Removal: log_cleaner.md
+      - Stripping Log Messages: log_stripping.md
+      - System-specific Considerations:
+          - Usage on Windows: windows.md
+          - Linux Unwinder: unwinder.md
+  - Contributing: contribute.md
+  - License: license.md

src/base/commandlineflags.h

@@ -48,25 +48,26 @@
 #ifndef BASE_COMMANDLINEFLAGS_H__
 #define BASE_COMMANDLINEFLAGS_H__
 
-#include "config.h"
 #include <cstdlib>  // for getenv
 #include <cstring>  // for memchr
 #include <string>
 
-#ifdef HAVE_LIB_GFLAGS
+#include "config.h"
 
-#include <gflags/gflags.h>
+#ifdef GLOG_USE_GFLAGS
+
+#  include <gflags/gflags.h>
 
 #else
 
-#include <glog/logging.h>
+#  include "glog/logging.h"
 
-#define DECLARE_VARIABLE(type, shorttype, name, tn) \
+#  define DECLARE_VARIABLE(type, shorttype, name, tn) \
     namespace fL##shorttype {                         \
       extern GLOG_EXPORT type FLAGS_##name;           \
     }                                                 \
     using fL##shorttype::FLAGS_##name
-#define DEFINE_VARIABLE(type, shorttype, name, value, meaning, tn) \
+#  define DEFINE_VARIABLE(type, shorttype, name, value, meaning, tn) \
     namespace fL##shorttype {                                        \
       GLOG_EXPORT type FLAGS_##name(value);                          \
       char FLAGS_no##name;                                           \
@@ -74,33 +75,31 @@
     using fL##shorttype::FLAGS_##name
 
 // bool specialization
-#define DECLARE_bool(name) \
-  DECLARE_VARIABLE(bool, B, name, bool)
-#define DEFINE_bool(name, value, meaning) \
+#  define DECLARE_bool(name) DECLARE_VARIABLE(bool, B, name, bool)
+#  define DEFINE_bool(name, value, meaning) \
     DEFINE_VARIABLE(bool, B, name, value, meaning, bool)
 
 // int32 specialization
-#define DECLARE_int32(name) \
-  DECLARE_VARIABLE(GOOGLE_NAMESPACE::int32, I, name, int32)
-#define DEFINE_int32(name, value, meaning) \
-  DEFINE_VARIABLE(GOOGLE_NAMESPACE::int32, I, name, value, meaning, int32)
+#  define DECLARE_int32(name) DECLARE_VARIABLE(google::int32, I, name, int32)
+#  define DEFINE_int32(name, value, meaning) \
+    DEFINE_VARIABLE(google::int32, I, name, value, meaning, int32)
 
 // uint32 specialization
-#ifndef DECLARE_uint32
-#define DECLARE_uint32(name) \
-  DECLARE_VARIABLE(GOOGLE_NAMESPACE::uint32, U, name, uint32)
-#endif // DECLARE_uint64
-#define DEFINE_uint32(name, value, meaning) \
-  DEFINE_VARIABLE(GOOGLE_NAMESPACE::uint32, U, name, value, meaning, uint32)
+#  ifndef DECLARE_uint32
+#    define DECLARE_uint32(name) \
+      DECLARE_VARIABLE(google::uint32, U, name, uint32)
+#  endif  // DECLARE_uint64
+#  define DEFINE_uint32(name, value, meaning) \
+    DEFINE_VARIABLE(google::uint32, U, name, value, meaning, uint32)
 
 // Special case for string, because we have to specify the namespace
 // std::string, which doesn't play nicely with our FLAG__namespace hackery.
-#define DECLARE_string(name)                    \
+#  define DECLARE_string(name)                    \
     namespace fLS {                               \
     extern GLOG_EXPORT std::string& FLAGS_##name; \
     }                                             \
     using fLS::FLAGS_##name
-#define DEFINE_string(name, value, meaning)                   \
+#  define DEFINE_string(name, value, meaning)                   \
     namespace fLS {                                             \
     std::string FLAGS_##name##_buf(value);                      \
     GLOG_EXPORT std::string& FLAGS_##name = FLAGS_##name##_buf; \
@@ -108,7 +107,7 @@
     }                                                           \
     using fLS::FLAGS_##name
 
-#endif  // HAVE_LIB_GFLAGS
+#endif  // GLOG_USE_GFLAGS
 
 // Define GLOG_DEFINE_* using DEFINE_* . By using these macros, we
 // have GLOG_* environ variables even if we have gflags installed.
@@ -132,16 +131,19 @@
 // These macros (could be functions, but I don't want to bother with a .cc
 // file), make it easier to initialize flags from the environment.
 
-#define EnvToString(envname, dflt)   \
-  (!getenv(envname) ? (dflt) : getenv(envname))
+#define EnvToString(envname, dflt) (!getenv(envname) ? (dflt) : getenv(envname))
 
 #define EnvToBool(envname, dflt) \
-  (!getenv(envname) ? (dflt) : memchr("tTyY1\0", getenv(envname)[0], 6) != NULL)
+  (!getenv(envname) ? (dflt)     \
+                    : memchr("tTyY1\0", getenv(envname)[0], 6) != nullptr)
 
 #define EnvToInt(envname, dflt) \
-  (!getenv(envname) ? (dflt) : strtol(getenv(envname), NULL, 10))
+  (!getenv(envname) ? (dflt)    \
+                    : static_cast<int>(strtol(getenv(envname), nullptr, 10)))
 
 #define EnvToUInt(envname, dflt) \
-  (!getenv(envname) ? (dflt) : strtoul(getenv(envname), NULL, 10))
+  (!getenv(envname)              \
+       ? (dflt)                  \
+       : static_cast<unsigned>(strtoul(getenv(envname), nullptr, 10)))
 
 #endif  // BASE_COMMANDLINEFLAGS_H__

src/base/googleinit.h

@@ -35,17 +35,15 @@
 
 class GoogleInitializer {
  public:
-  typedef void (*void_function)(void);
-  GoogleInitializer(const char*, void_function f) {
-    f();
-  }
+  using void_function = void (*)();
+  GoogleInitializer(const char*, void_function f) { f(); }
 };
 
 #define REGISTER_MODULE_INITIALIZER(name, body)       \
   namespace {                                         \
-    static void google_init_module_##name () { body; }          \
-    GoogleInitializer google_initializer_module_##name(#name,   \
-            google_init_module_##name);                         \
+  static void google_init_module_##name() { body; }   \
+  GoogleInitializer google_initializer_module_##name( \
+      #name, google_init_module_##name);              \
   }
 
 #endif /* _GOOGLEINIT_H */

src/base/mutex.h

@@ -1,333 +0,0 @@
-// Copyright (c) 2007, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// ---
-// Author: Craig Silverstein.
-//
-// A simple mutex wrapper, supporting locks and read-write locks.
-// You should assume the locks are *not* re-entrant.
-//
-// To use: you should define the following macros in your configure.ac:
-//   ACX_PTHREAD
-//   AC_RWLOCK
-// The latter is defined in ../autoconf.
-//
-// This class is meant to be internal-only and should be wrapped by an
-// internal namespace.  Before you use this module, please give the
-// name of your internal namespace for this module.  Or, if you want
-// to expose it, you'll want to move it to the Google namespace.  We
-// cannot put this class in global namespace because there can be some
-// problems when we have multiple versions of Mutex in each shared object.
-//
-// NOTE: by default, we have #ifdef'ed out the TryLock() method.
-//       This is for two reasons:
-// 1) TryLock() under Windows is a bit annoying (it requires a
-//    #define to be defined very early).
-// 2) TryLock() is broken for NO_THREADS mode, at least in NDEBUG
-//    mode.
-// If you need TryLock(), and either these two caveats are not a
-// problem for you, or you're willing to work around them, then
-// feel free to #define GMUTEX_TRYLOCK, or to remove the #ifdefs
-// in the code below.
-//
-// CYGWIN NOTE: Cygwin support for rwlock seems to be buggy:
-//    http://www.cygwin.com/ml/cygwin/2008-12/msg00017.html
-// Because of that, we might as well use windows locks for
-// cygwin.  They seem to be more reliable than the cygwin pthreads layer.
-//
-// TRICKY IMPLEMENTATION NOTE:
-// This class is designed to be safe to use during
-// dynamic-initialization -- that is, by global constructors that are
-// run before main() starts.  The issue in this case is that
-// dynamic-initialization happens in an unpredictable order, and it
-// could be that someone else's dynamic initializer could call a
-// function that tries to acquire this mutex -- but that all happens
-// before this mutex's constructor has run.  (This can happen even if
-// the mutex and the function that uses the mutex are in the same .cc
-// file.)  Basically, because Mutex does non-trivial work in its
-// constructor, it's not, in the naive implementation, safe to use
-// before dynamic initialization has run on it.
-//
-// The solution used here is to pair the actual mutex primitive with a
-// bool that is set to true when the mutex is dynamically initialized.
-// (Before that it's false.)  Then we modify all mutex routines to
-// look at the bool, and not try to lock/unlock until the bool makes
-// it to true (which happens after the Mutex constructor has run.)
-//
-// This works because before main() starts -- particularly, during
-// dynamic initialization -- there are no threads, so a) it's ok that
-// the mutex operations are a no-op, since we don't need locking then
-// anyway; and b) we can be quite confident our bool won't change
-// state between a call to Lock() and a call to Unlock() (that would
-// require a global constructor in one translation unit to call Lock()
-// and another global constructor in another translation unit to call
-// Unlock() later, which is pretty perverse).
-//
-// That said, it's tricky, and can conceivably fail; it's safest to
-// avoid trying to acquire a mutex in a global constructor, if you
-// can.  One way it can fail is that a really smart compiler might
-// initialize the bool to true at static-initialization time (too
-// early) rather than at dynamic-initialization time.  To discourage
-// that, we set is_safe_ to true in code (not the constructor
-// colon-initializer) and set it to true via a function that always
-// evaluates to true, but that the compiler can't know always
-// evaluates to true.  This should be good enough.
-
-#ifndef GOOGLE_MUTEX_H_
-#define GOOGLE_MUTEX_H_
-
-#include "config.h"           // to figure out pthreads support
-
-#if defined(NO_THREADS)
-  typedef int MutexType;      // to keep a lock-count
-#elif defined(_WIN32) || defined(__CYGWIN__)
-# ifndef WIN32_LEAN_AND_MEAN
-#  define WIN32_LEAN_AND_MEAN  // We only need minimal includes
-# endif
-# ifdef GMUTEX_TRYLOCK
-  // We need Windows NT or later for TryEnterCriticalSection().  If you
-  // don't need that functionality, you can remove these _WIN32_WINNT
-  // lines, and change TryLock() to assert(0) or something.
-#   ifndef _WIN32_WINNT
-#     define _WIN32_WINNT 0x0400
-#   endif
-# endif
-// To avoid macro definition of ERROR.
-# ifndef NOGDI
-#  define NOGDI
-# endif
-// To avoid macro definition of min/max.
-# ifndef NOMINMAX
-#  define NOMINMAX
-# endif
-# include <windows.h>
-  typedef CRITICAL_SECTION MutexType;
-#elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK)
-  // Needed for pthread_rwlock_*.  If it causes problems, you could take it
-  // out, but then you'd have to unset HAVE_RWLOCK (at least on linux -- it
-  // *does* cause problems for FreeBSD, or MacOSX, but isn't needed
-  // for locking there.)
-# ifdef __linux__
-#   ifndef _XOPEN_SOURCE  // Some other header might have already set it for us.
-#     define _XOPEN_SOURCE 500  // may be needed to get the rwlock calls
-#   endif
-# endif
-# include <pthread.h>
-  typedef pthread_rwlock_t MutexType;
-#elif defined(HAVE_PTHREAD)
-# include <pthread.h>
-  typedef pthread_mutex_t MutexType;
-#else
-# error Need to implement mutex.h for your architecture, or #define NO_THREADS
-#endif
-
-// We need to include these header files after defining _XOPEN_SOURCE
-// as they may define the _XOPEN_SOURCE macro.
-#include <cassert>
-#include <cstdlib>      // for abort()
-
-#define MUTEX_NAMESPACE glog_internal_namespace_
-
-namespace MUTEX_NAMESPACE {
-
-class Mutex {
- public:
-  // Create a Mutex that is not held by anybody.  This constructor is
-  // typically used for Mutexes allocated on the heap or the stack.
-  // See below for a recommendation for constructing global Mutex
-  // objects.
-  inline Mutex();
-
-  // Destructor
-  inline ~Mutex();
-
-  inline void Lock();    // Block if needed until free then acquire exclusively
-  inline void Unlock();  // Release a lock acquired via Lock()
-#ifdef GMUTEX_TRYLOCK
-  inline bool TryLock(); // If free, Lock() and return true, else return false
-#endif
-  // Note that on systems that don't support read-write locks, these may
-  // be implemented as synonyms to Lock() and Unlock().  So you can use
-  // these for efficiency, but don't use them anyplace where being able
-  // to do shared reads is necessary to avoid deadlock.
-  inline void ReaderLock();   // Block until free or shared then acquire a share
-  inline void ReaderUnlock(); // Release a read share of this Mutex
-  inline void WriterLock() { Lock(); }     // Acquire an exclusive lock
-  inline void WriterUnlock() { Unlock(); } // Release a lock from WriterLock()
-
-  // TODO(hamaji): Do nothing, implement correctly.
-  inline void AssertHeld() {}
-
- private:
-  MutexType mutex_;
-  // We want to make sure that the compiler sets is_safe_ to true only
-  // when we tell it to, and never makes assumptions is_safe_ is
-  // always true.  volatile is the most reliable way to do that.
-  volatile bool is_safe_;
-
-  inline void SetIsSafe() { is_safe_ = true; }
-
-  // Catch the error of writing Mutex when intending MutexLock.
-  Mutex(Mutex* /*ignored*/) {}
-  // Disallow "evil" constructors
-  Mutex(const Mutex&);
-  void operator=(const Mutex&);
-};
-
-// Now the implementation of Mutex for various systems
-#if defined(NO_THREADS)
-
-// When we don't have threads, we can be either reading or writing,
-// but not both.  We can have lots of readers at once (in no-threads
-// mode, that's most likely to happen in recursive function calls),
-// but only one writer.  We represent this by having mutex_ be -1 when
-// writing and a number > 0 when reading (and 0 when no lock is held).
-//
-// In debug mode, we assert these invariants, while in non-debug mode
-// we do nothing, for efficiency.  That's why everything is in an
-// assert.
-
-Mutex::Mutex() : mutex_(0) { }
-Mutex::~Mutex()            { assert(mutex_ == 0); }
-void Mutex::Lock()         { assert(--mutex_ == -1); }
-void Mutex::Unlock()       { assert(mutex_++ == -1); }
-#ifdef GMUTEX_TRYLOCK
-bool Mutex::TryLock()      { if (mutex_) return false; Lock(); return true; }
-#endif
-void Mutex::ReaderLock()   { assert(++mutex_ > 0); }
-void Mutex::ReaderUnlock() { assert(mutex_-- > 0); }
-
-#elif defined(_WIN32) || defined(__CYGWIN__)
-
-Mutex::Mutex()             { InitializeCriticalSection(&mutex_); SetIsSafe(); }
-Mutex::~Mutex()            { DeleteCriticalSection(&mutex_); }
-void Mutex::Lock()         { if (is_safe_) EnterCriticalSection(&mutex_); }
-void Mutex::Unlock()       { if (is_safe_) LeaveCriticalSection(&mutex_); }
-#ifdef GMUTEX_TRYLOCK
-bool Mutex::TryLock()      { return is_safe_ ?
-                                 TryEnterCriticalSection(&mutex_) != 0 : true; }
-#endif
-void Mutex::ReaderLock()   { Lock(); }      // we don't have read-write locks
-void Mutex::ReaderUnlock() { Unlock(); }
-
-#elif defined(HAVE_PTHREAD) && defined(HAVE_RWLOCK)
-
-#define SAFE_PTHREAD(fncall)  do {   /* run fncall if is_safe_ is true */  \
-  if (is_safe_ && fncall(&mutex_) != 0) abort();                           \
-} while (0)
-
-Mutex::Mutex() {
-  SetIsSafe();
-  if (is_safe_ && pthread_rwlock_init(&mutex_, NULL) != 0) abort();
-}
-Mutex::~Mutex()            { SAFE_PTHREAD(pthread_rwlock_destroy); }
-void Mutex::Lock()         { SAFE_PTHREAD(pthread_rwlock_wrlock); }
-void Mutex::Unlock()       { SAFE_PTHREAD(pthread_rwlock_unlock); }
-#ifdef GMUTEX_TRYLOCK
-bool Mutex::TryLock()      { return is_safe_ ?
-                                    pthread_rwlock_trywrlock(&mutex_) == 0 :
-                                    true; }
-#endif
-void Mutex::ReaderLock()   { SAFE_PTHREAD(pthread_rwlock_rdlock); }
-void Mutex::ReaderUnlock() { SAFE_PTHREAD(pthread_rwlock_unlock); }
-#undef SAFE_PTHREAD
-
-#elif defined(HAVE_PTHREAD)
-
-#define SAFE_PTHREAD(fncall)  do {   /* run fncall if is_safe_ is true */  \
-  if (is_safe_ && fncall(&mutex_) != 0) abort();                           \
-} while (0)
-
-Mutex::Mutex()             {
-  SetIsSafe();
-  if (is_safe_ && pthread_mutex_init(&mutex_, NULL) != 0) abort();
-}
-Mutex::~Mutex()            { SAFE_PTHREAD(pthread_mutex_destroy); }
-void Mutex::Lock()         { SAFE_PTHREAD(pthread_mutex_lock); }
-void Mutex::Unlock()       { SAFE_PTHREAD(pthread_mutex_unlock); }
-#ifdef GMUTEX_TRYLOCK
-bool Mutex::TryLock()      { return is_safe_ ?
-                                 pthread_mutex_trylock(&mutex_) == 0 : true; }
-#endif
-void Mutex::ReaderLock()   { Lock(); }
-void Mutex::ReaderUnlock() { Unlock(); }
-#undef SAFE_PTHREAD
-
-#endif
-
-// --------------------------------------------------------------------------
-// Some helper classes
-
-// MutexLock(mu) acquires mu when constructed and releases it when destroyed.
-class MutexLock {
- public:
-  explicit MutexLock(Mutex *mu) : mu_(mu) { mu_->Lock(); }
-  ~MutexLock() { mu_->Unlock(); }
- private:
-  Mutex * const mu_;
-  // Disallow "evil" constructors
-  MutexLock(const MutexLock&);
-  void operator=(const MutexLock&);
-};
-
-// ReaderMutexLock and WriterMutexLock do the same, for rwlocks
-class ReaderMutexLock {
- public:
-  explicit ReaderMutexLock(Mutex *mu) : mu_(mu) { mu_->ReaderLock(); }
-  ~ReaderMutexLock() { mu_->ReaderUnlock(); }
- private:
-  Mutex * const mu_;
-  // Disallow "evil" constructors
-  ReaderMutexLock(const ReaderMutexLock&);
-  void operator=(const ReaderMutexLock&);
-};
-
-class WriterMutexLock {
- public:
-  explicit WriterMutexLock(Mutex *mu) : mu_(mu) { mu_->WriterLock(); }
-  ~WriterMutexLock() { mu_->WriterUnlock(); }
- private:
-  Mutex * const mu_;
-  // Disallow "evil" constructors
-  WriterMutexLock(const WriterMutexLock&);
-  void operator=(const WriterMutexLock&);
-};
-
-// Catch bug where variable name is omitted, e.g. MutexLock (&mu);
-#define MutexLock(x) COMPILE_ASSERT(0, mutex_lock_decl_missing_var_name)
-#define ReaderMutexLock(x) COMPILE_ASSERT(0, rmutex_lock_decl_missing_var_name)
-#define WriterMutexLock(x) COMPILE_ASSERT(0, wmutex_lock_decl_missing_var_name)
-
-}  // namespace MUTEX_NAMESPACE
-
-using namespace MUTEX_NAMESPACE;
-
-#undef MUTEX_NAMESPACE
-
-#endif  /* #define GOOGLE_MUTEX_H__ */

src/cleanup_immediately_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -27,23 +27,22 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include <glog/logging.h>
-#include <glog/raw_logging.h>
-
 #include "base/commandlineflags.h"
+#include "glog/logging.h"
+#include "glog/raw_logging.h"
 #include "googletest.h"
 
-#ifdef HAVE_LIB_GFLAGS
-#include <gflags/gflags.h>
+#ifdef GLOG_USE_GFLAGS
+#  include <gflags/gflags.h>
 using namespace GFLAGS_NAMESPACE;
 #endif
 
 #ifdef HAVE_LIB_GMOCK
-#include <gmock/gmock.h>
+#  include <gmock/gmock.h>
 
-#include "mock-log.h"
+#  include "mock-log.h"
 // Introduce several symbols from gmock.
-using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
+using google::glog_testing::ScopedMockLog;
 using testing::_;
 using testing::AllOf;
 using testing::AnyNumber;
@@ -53,11 +52,12 @@ using testing::StrictMock;
 using testing::StrNe;
 #endif
 
-using namespace GOOGLE_NAMESPACE;
+using namespace google;
 
 TEST(CleanImmediately, logging) {
+  using namespace std::chrono_literals;
   google::SetLogFilenameExtension(".foobar");
-  google::EnableLogCleaner(0);
+  google::EnableLogCleaner(0h);
 
   for (unsigned i = 0; i < 1000; ++i) {
     LOG(INFO) << "cleanup test";
@@ -66,15 +66,15 @@ TEST(CleanImmediately, logging) {
   google::DisableLogCleaner();
 }
 
-int main(int argc, char **argv) {
+int main(int argc, char** argv) {
   FLAGS_colorlogtostderr = false;
   FLAGS_timestamp_in_logfile_name = true;
-#ifdef HAVE_LIB_GFLAGS
+#ifdef GLOG_USE_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
   // Make sure stderr is not buffered as stderr seems to be buffered
   // on recent windows.
-  setbuf(stderr, NULL);
+  setbuf(stderr, nullptr);
 
   // Test some basics before InitGoogleLogging:
   CaptureTestStderr();

src/cleanup_with_absolute_prefix_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -27,23 +27,22 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include <glog/logging.h>
-#include <glog/raw_logging.h>
-
 #include "base/commandlineflags.h"
+#include "glog/logging.h"
+#include "glog/raw_logging.h"
 #include "googletest.h"
 
-#ifdef HAVE_LIB_GFLAGS
-#include <gflags/gflags.h>
+#ifdef GLOG_USE_GFLAGS
+#  include <gflags/gflags.h>
 using namespace GFLAGS_NAMESPACE;
 #endif
 
 #ifdef HAVE_LIB_GMOCK
-#include <gmock/gmock.h>
+#  include <gmock/gmock.h>
 
-#include "mock-log.h"
+#  include "mock-log.h"
 // Introduce several symbols from gmock.
-using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
+using google::glog_testing::ScopedMockLog;
 using testing::_;
 using testing::AllOf;
 using testing::AnyNumber;
@@ -53,10 +52,11 @@ using testing::StrictMock;
 using testing::StrNe;
 #endif
 
-using namespace GOOGLE_NAMESPACE;
+using namespace google;
 
 TEST(CleanImmediatelyWithAbsolutePrefix, logging) {
-  google::EnableLogCleaner(0);
+  using namespace std::chrono_literals;
+  google::EnableLogCleaner(0h);
   google::SetLogFilenameExtension(".barfoo");
   google::SetLogDestination(GLOG_INFO, "test_cleanup_");
 
@@ -71,15 +71,15 @@ TEST(CleanImmediatelyWithAbsolutePrefix, logging) {
   google::DisableLogCleaner();
 }
 
-int main(int argc, char **argv) {
+int main(int argc, char** argv) {
   FLAGS_colorlogtostderr = false;
   FLAGS_timestamp_in_logfile_name = true;
-#ifdef HAVE_LIB_GFLAGS
+#ifdef GLOG_USE_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
   // Make sure stderr is not buffered as stderr seems to be buffered
   // on recent windows.
-  setbuf(stderr, NULL);
+  setbuf(stderr, nullptr);
 
   // Test some basics before InitGoogleLogging:
   CaptureTestStderr();

src/cleanup_with_relative_prefix_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2021, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -27,23 +27,22 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include <glog/logging.h>
-#include <glog/raw_logging.h>
-
 #include "base/commandlineflags.h"
+#include "glog/logging.h"
+#include "glog/raw_logging.h"
 #include "googletest.h"
 
-#ifdef HAVE_LIB_GFLAGS
-#include <gflags/gflags.h>
+#ifdef GLOG_USE_GFLAGS
+#  include <gflags/gflags.h>
 using namespace GFLAGS_NAMESPACE;
 #endif
 
 #ifdef HAVE_LIB_GMOCK
-#include <gmock/gmock.h>
+#  include <gmock/gmock.h>
 
-#include "mock-log.h"
+#  include "mock-log.h"
 // Introduce several symbols from gmock.
-using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
+using google::glog_testing::ScopedMockLog;
 using testing::_;
 using testing::AllOf;
 using testing::AnyNumber;
@@ -53,10 +52,11 @@ using testing::StrictMock;
 using testing::StrNe;
 #endif
 
-using namespace GOOGLE_NAMESPACE;
+using namespace google;
 
 TEST(CleanImmediatelyWithRelativePrefix, logging) {
-  google::EnableLogCleaner(0);
+  using namespace std::chrono_literals;
+  google::EnableLogCleaner(0h);
   google::SetLogFilenameExtension(".relativefoo");
   google::SetLogDestination(GLOG_INFO, "test_subdir/test_cleanup_");
 
@@ -67,15 +67,15 @@ TEST(CleanImmediatelyWithRelativePrefix, logging) {
   google::DisableLogCleaner();
 }
 
-int main(int argc, char **argv) {
+int main(int argc, char** argv) {
   FLAGS_colorlogtostderr = false;
   FLAGS_timestamp_in_logfile_name = true;
-#ifdef HAVE_LIB_GFLAGS
+#ifdef GLOG_USE_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
   // Make sure stderr is not buffered as stderr seems to be buffered
   // on recent windows.
-  setbuf(stderr, NULL);
+  setbuf(stderr, nullptr);
 
   // Test some basics before InitGoogleLogging:
   CaptureTestStderr();

src/config.h.cmake.in

@@ -1,23 +1,17 @@
 #ifndef GLOG_CONFIG_H
 #define GLOG_CONFIG_H
 
-/* define if glog doesn't use RTTI */
-#cmakedefine DISABLE_RTTI
-
-/* Namespace for Google classes */
-#cmakedefine GOOGLE_NAMESPACE ${GOOGLE_NAMESPACE}
-
 /* Define if you have the `dladdr' function */
 #cmakedefine HAVE_DLADDR
 
-/* Define if you have the `snprintf' function */
-#cmakedefine HAVE_SNPRINTF
-
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #cmakedefine HAVE_DLFCN_H
 
-/* Define to 1 if you have the <execinfo.h> header file. */
-#cmakedefine HAVE_EXECINFO_H
+/* Define if you have the `backtrace' function in <execinfo.h> */
+#cmakedefine HAVE_EXECINFO_BACKTRACE
+
+/* Define if you have the `backtrace_symbols' function in <execinfo.h> */
+#cmakedefine HAVE_EXECINFO_BACKTRACE_SYMBOLS
 
 /* Define if you have the `fcntl' function */
 #cmakedefine HAVE_FCNTL
@@ -25,15 +19,6 @@
 /* Define to 1 if you have the <glob.h> header file. */
 #cmakedefine HAVE_GLOB_H
 
-/* Define to 1 if you have the <inttypes.h> header file. */
-#cmakedefine HAVE_INTTYPES_H ${HAVE_INTTYPES_H}
-
-/* Define to 1 if you have the `pthread' library (-lpthread). */
-#cmakedefine HAVE_LIBPTHREAD
-
-/* define if you have google gflags library */
-#cmakedefine HAVE_LIB_GFLAGS
-
 /* define if you have google gmock library */
 #cmakedefine HAVE_LIB_GMOCK
 
@@ -43,23 +28,11 @@
 /* define if you have dbghelp library */
 #cmakedefine HAVE_DBGHELP
 
-/* define if you have libunwind */
-#cmakedefine HAVE_LIB_UNWIND
-
-/* Define to 1 if you have the <memory.h> header file. */
-#cmakedefine HAVE_MEMORY_H
-
-/* define to disable multithreading support. */
-#cmakedefine NO_THREADS
-
-/* define if the compiler implements namespaces */
-#cmakedefine HAVE_NAMESPACES
-
 /* Define if you have the 'pread' function */
 #cmakedefine HAVE_PREAD
 
-/* Define if you have POSIX threads libraries and header files. */
-#cmakedefine HAVE_PTHREAD
+/* Define if you have the 'posix_fadvise' function in <fcntl.h> */
+#cmakedefine HAVE_POSIX_FADVISE
 
 /* Define to 1 if you have the <pwd.h> header file. */
 #cmakedefine HAVE_PWD_H
@@ -67,29 +40,26 @@
 /* Define if you have the 'pwrite' function */
 #cmakedefine HAVE_PWRITE
 
-/* define if the compiler implements pthread_rwlock_* */
-#cmakedefine HAVE_RWLOCK
-
 /* Define if you have the 'sigaction' function */
 #cmakedefine HAVE_SIGACTION
 
 /* Define if you have the `sigaltstack' function */
 #cmakedefine HAVE_SIGALTSTACK
 
-/* Define to 1 if you have the <stdint.h> header file. */
-#cmakedefine HAVE_STDINT_H ${HAVE_STDINT_H}
-
-/* Define to 1 if you have the <strings.h> header file. */
-#cmakedefine HAVE_STRINGS_H
-
 /* Define to 1 if you have the <syscall.h> header file. */
 #cmakedefine HAVE_SYSCALL_H
 
 /* Define to 1 if you have the <syslog.h> header file. */
 #cmakedefine HAVE_SYSLOG_H
 
-/* Define to 1 if you have the <sys/stat.h> header file. */
-#cmakedefine HAVE_SYS_STAT_H
+/* Define to 1 if you have the <elf.h> header file. */
+#cmakedefine HAVE_ELF_H
+
+/* Define to 1 if you have the <sys/exec_elf.h> header file. */
+#cmakedefine HAVE_SYS_EXEC_ELF_H
+
+/* Define to 1 if you have the <link.h> header file. */
+#cmakedefine HAVE_LINK_H
 
 /* Define to 1 if you have the <sys/syscall.h> header file. */
 #cmakedefine HAVE_SYS_SYSCALL_H
@@ -98,7 +68,7 @@
 #cmakedefine HAVE_SYS_TIME_H
 
 /* Define to 1 if you have the <sys/types.h> header file. */
-#cmakedefine HAVE_SYS_TYPES_H ${HAVE_SYS_TYPES_H}
+#cmakedefine HAVE_SYS_TYPES_H
 
 /* Define to 1 if you have the <sys/ucontext.h> header file. */
 #cmakedefine HAVE_SYS_UCONTEXT_H
@@ -115,23 +85,11 @@
 /* Define to 1 if you have the <unistd.h> header file. */
 #cmakedefine HAVE_UNISTD_H ${HAVE_UNISTD_H}
 
-/* Define if you have the <unwind.h> header file. */
-#cmakedefine HAVE_UNWIND_H
+/* define if you have unwind */
+#cmakedefine HAVE_UNWIND
 
-/* Define if you linking to _Unwind_Backtrace is possible. */
-#cmakedefine HAVE__UNWIND_BACKTRACE
-
-/* define if the compiler supports using expression for operator */
-#cmakedefine HAVE_USING_OPERATOR
-
-/* define if your compiler has __attribute__ */
-#cmakedefine HAVE___ATTRIBUTE__
-
-/* define if your compiler has __builtin_expect */
-#cmakedefine HAVE___BUILTIN_EXPECT ${HAVE___BUILTIN_EXPECT}
-
-/* define if your compiler has __sync_val_compare_and_swap */
-#cmakedefine HAVE___SYNC_VAL_COMPARE_AND_SWAP
+/* define if you have libunwind */
+#cmakedefine HAVE_LIBUNWIND
 
 /* define if symbolize support is available */
 #cmakedefine HAVE_SYMBOLIZE
@@ -142,90 +100,43 @@
 /* define if gmtime_r is available in time.h */
 #cmakedefine HAVE_GMTIME_R
 
-/* Define to the sub-directory in which libtool stores uninstalled libraries.
-   */
-#cmakedefine LT_OBJDIR
+/* define if _chsize_s is available in io.h */
+#cmakedefine HAVE__CHSIZE_S
 
-/* Name of package */
-#cmakedefine PACKAGE
+/* define if ssize_t is defined */
+#cmakedefine HAVE_SSIZE_T
 
-/* Define to the address where bug reports for this package should be sent. */
-#cmakedefine PACKAGE_BUGREPORT
-
-/* Define to the full name of this package. */
-#cmakedefine PACKAGE_NAME
-
-/* Define to the full name and version of this package. */
-#cmakedefine PACKAGE_STRING
-
-/* Define to the one symbol short name of this package. */
-#cmakedefine PACKAGE_TARNAME
-
-/* Define to the home page for this package. */
-#cmakedefine PACKAGE_URL
-
-/* Define to the version of this package. */
-#cmakedefine PACKAGE_VERSION
+/* define if mode_t is defined */
+#cmakedefine HAVE_MODE_T
 
 /* How to access the PC from a struct ucontext */
-#cmakedefine PC_FROM_UCONTEXT
+#cmakedefine PC_FROM_UCONTEXT ${PC_FROM_UCONTEXT}
 
 /* define if we should print file offsets in traces instead of symbolizing. */
 #cmakedefine PRINT_UNSYMBOLIZED_STACK_TRACES
 
-/* Define to necessary symbol if this constant uses a non-standard name on
-   your system. */
-#cmakedefine PTHREAD_CREATE_JOINABLE
-
 /* The size of `void *', as computed by sizeof. */
 #cmakedefine SIZEOF_VOID_P ${SIZEOF_VOID_P}
 
-/* Define to 1 if you have the ANSI C header files. */
-#cmakedefine STDC_HEADERS
-
-/* the namespace where STL code like vector<> is defined */
-#cmakedefine STL_NAMESPACE ${STL_NAMESPACE}
-
 /* location of source code */
 #cmakedefine TEST_SRC_DIR ${TEST_SRC_DIR}
 
-/* Define to necessary thread-local storage attribute. */
-#cmakedefine GLOG_THREAD_LOCAL_STORAGE ${GLOG_THREAD_LOCAL_STORAGE}
+/* Define if thread-local storage is enabled. */
+#cmakedefine GLOG_THREAD_LOCAL_STORAGE
 
-/* Check whether aligned_storage and alignof present */
-#cmakedefine HAVE_ALIGNED_STORAGE ${HAVE_ALIGNED_STORAGE}
+/* define if abi::__cxa_demangle is available in cxxabi.h */
+#cmakedefine HAVE___CXA_DEMANGLE
 
-/* Check whether C++11 atomic is available */
-#cmakedefine HAVE_CXX11_ATOMIC ${HAVE_CXX11_ATOMIC}
+/* define if __argv is available in cstdlib */
+#cmakedefine HAVE___ARGV
 
-/* Check whether C++11 chrono is available */
-#cmakedefine HAVE_CXX11_CHRONO ${HAVE_CXX11_CHRONO}
+/* define if __progname is available */
+#cmakedefine HAVE___PROGNAME
 
-/* Check whether C++11 nullptr_t is available */
-#cmakedefine HAVE_CXX11_NULLPTR_T ${HAVE_CXX11_NULLPTR_T}
+/* define if getprogname is available in cstdlib */
+#cmakedefine HAVE_GETPROGNAME
 
-/* Version number of package */
-#cmakedefine VERSION
-
-#ifdef GLOG_BAZEL_BUILD
-
-/* TODO(rodrigoq): remove this workaround once bazel#3979 is resolved:
- * https://github.com/bazelbuild/bazel/issues/3979 */
-#define _START_GOOGLE_NAMESPACE_ namespace GOOGLE_NAMESPACE {
-
-#define _END_GOOGLE_NAMESPACE_ }
-
-#else
-
-/* Stops putting the code inside the Google namespace */
-#cmakedefine _END_GOOGLE_NAMESPACE_ ${_END_GOOGLE_NAMESPACE_}
-
-/* Puts following code inside the Google namespace */
-#cmakedefine _START_GOOGLE_NAMESPACE_ ${_START_GOOGLE_NAMESPACE_}
-
-#endif
-
-/* Replacement for deprecated syscall(SYS_gettid) on macOS. */
-#cmakedefine HAVE_PTHREAD_THREADID_NP ${HAVE_PTHREAD_THREADID_NP}
+/* define if program_invocation_short_name is available in cerrno */
+#cmakedefine HAVE_PROGRAM_INVOCATION_SHORT_NAME
 
 #endif  // GLOG_CONFIG_H

src/dcheck_unittest/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required (VERSION 3.16)
+project (glog_log_severity LANGUAGES CXX)
+
+find_package (glog REQUIRED NO_MODULE)
+
+add_executable (glog_dcheck glog_dcheck.cc)
+target_link_libraries (glog_dcheck PRIVATE glog::glog)

src/dcheck_unittest/glog_dcheck.cc

@@ -0,0 +1,53 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sergiu Deitsch
+
+#include <glog/logging.h>
+
+int main(int /*argc*/, char** argv) {
+  google::InitGoogleLogging(argv[0]);
+  google::InstallFailureSignalHandler();
+
+#if defined(_MSC_VER)
+  // Avoid presenting an interactive dialog that will cause the test to time
+  // out.
+  _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT);
+#endif  // defined(_MSC_VER)
+
+  DLOG(INFO) << "no output";
+  DLOG(WARNING) << "no output";
+  DLOG(ERROR) << "no output";
+
+  // Must not fail in release build
+  DLOG_ASSERT(false);
+
+  // Must be the last expression
+  DLOG(FATAL) << "no output";
+}

src/demangle.h

@@ -67,19 +67,28 @@
 // C++ ABI in the future.
 //
 
-#ifndef BASE_DEMANGLE_H_
-#define BASE_DEMANGLE_H_
+#ifndef GLOG_INTERNAL_DEMANGLE_H
+#define GLOG_INTERNAL_DEMANGLE_H
 
-#include "config.h"
-#include <glog/logging.h>
+#include <cstddef>
 
-_START_GOOGLE_NAMESPACE_
+#if defined(GLOG_USE_GLOG_EXPORT)
+#  include "glog/export.h"
+#endif
+
+#if !defined(GLOG_NO_EXPORT)
+#  error "demangle.h" was not included correctly.
+#endif
+
+namespace google {
+inline namespace glog_internal_namespace_ {
 
 // Demangle "mangled".  On success, return true and write the
 // demangled symbol name to "out".  Otherwise, return false.
 // "out" is modified even if demangling is unsuccessful.
-bool GLOG_EXPORT Demangle(const char *mangled, char *out, size_t out_size);
+bool GLOG_NO_EXPORT Demangle(const char* mangled, char* out, size_t out_size);
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace glog_internal_namespace_
+}  // namespace google
 
-#endif  // BASE_DEMANGLE_H_
+#endif  // GLOG_INTERNAL_DEMANGLE_H

src/demangle_unittest.cc

@@ -31,18 +31,19 @@
 //
 // Unit tests for functions in demangle.c.
 
+#include "demangle.h"
+
+#include <fstream>
+#include <iostream>
+#include <string>
+
+#include "config.h"
+#include "glog/logging.h"
+#include "googletest.h"
 #include "utilities.h"
 
-#include <iostream>
-#include <fstream>
-#include <string>
-#include <glog/logging.h>
-#include "demangle.h"
-#include "googletest.h"
-#include "config.h"
-
-#ifdef HAVE_LIB_GFLAGS
-#include <gflags/gflags.h>
+#ifdef GLOG_USE_GFLAGS
+#  include <gflags/gflags.h>
 using namespace GFLAGS_NAMESPACE;
 #endif
 
@@ -50,10 +51,10 @@ GLOG_DEFINE_bool(demangle_filter, false,
                  "Run demangle_unittest in filter mode");
 
 using namespace std;
-using namespace GOOGLE_NAMESPACE;
+using namespace google;
 
 // A wrapper function for Demangle() to make the unit test simple.
-static const char *DemangleIt(const char * const mangled) {
+static const char* DemangleIt(const char* const mangled) {
   static char demangled[4096];
   if (Demangle(mangled, demangled, sizeof(demangled))) {
     return demangled;
@@ -64,28 +65,25 @@ static const char *DemangleIt(const char * const mangled) {
 
 #if defined(GLOG_OS_WINDOWS)
 
-#if defined(HAVE_DBGHELP) && !defined(NDEBUG)
+#  if defined(HAVE_DBGHELP) && !defined(NDEBUG)
 TEST(Demangle, Windows) {
-  EXPECT_STREQ(
-    "public: static void __cdecl Foo::func(int)",
+  EXPECT_STREQ("public: static void __cdecl Foo::func(int)",
                DemangleIt("?func@Foo@@SAXH@Z"));
-  EXPECT_STREQ(
-    "public: static void __cdecl Foo::func(int)",
+  EXPECT_STREQ("public: static void __cdecl Foo::func(int)",
                DemangleIt("@ILT+1105(?func@Foo@@SAXH@Z)"));
-  EXPECT_STREQ(
-    "int __cdecl foobarArray(int * const)",
+  EXPECT_STREQ("int __cdecl foobarArray(int * const)",
                DemangleIt("?foobarArray@@YAHQAH@Z"));
 }
-#endif
+#  endif
 
 #else
 
-// Test corner cases of bounary conditions.
+// Test corner cases of boundary conditions.
 TEST(Demangle, CornerCases) {
   const size_t size = 10;
-  char tmp[size] = { 0 };
-  const char *demangled = "foobar()";
-  const char *mangled = "_Z6foobarv";
+  char tmp[size] = {0};
+  const char* demangled = "foobar()";
+  const char* mangled = "_Z6foobarv";
   EXPECT_TRUE(Demangle(mangled, tmp, sizeof(tmp)));
   // sizeof("foobar()") == size - 1
   EXPECT_STREQ(demangled, tmp);
@@ -94,7 +92,7 @@ TEST(Demangle, CornerCases) {
   EXPECT_FALSE(Demangle(mangled, tmp, size - 2));  // Not enough.
   EXPECT_FALSE(Demangle(mangled, tmp, 1));
   EXPECT_FALSE(Demangle(mangled, tmp, 0));
-  EXPECT_FALSE(Demangle(mangled, NULL, 0));  // Should not cause SEGV.
+  EXPECT_FALSE(Demangle(mangled, nullptr, 0));  // Should not cause SEGV.
 }
 
 // Test handling of functions suffixed with .clone.N, which is used by GCC
@@ -146,11 +144,11 @@ TEST(Demangle, FromFile) {
 
 #endif
 
-int main(int argc, char **argv) {
-#ifdef HAVE_LIB_GFLAGS
+int main(int argc, char** argv) {
+  InitGoogleTest(&argc, argv);
+#ifdef GLOG_USE_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
-  InitGoogleTest(&argc, argv);
 
   FLAGS_logtostderr = true;
   InitGoogleLogging(argv[0]);

src/demangle_unittest.txt

@@ -143,3 +143,10 @@ _Zrm1XS_	operator%()
 # Template argument packs can start with I or J.
 _Z3addIIiEEvDpT_	add<>()
 _Z3addIJiEEvDpT_	add<>()
+
+# Nested templates with pack expansion
+_ZSt13__invoke_implIvPFvPiEJDnEET_St14__invoke_otherOT0_DpOT1_	std::__invoke_impl<>()
+_ZSt8__invokeIPFvPiEJDnEENSt15__invoke_resultIT_JDpT0_EE4typeEOS4_DpOS5_	std::__invoke<>()
+_ZNSt6thread8_InvokerISt5tupleIJPFvPiEDnEEE9_M_invokeIJLm0ELm1EEEEvSt12_Index_tupleIJXspT_EEE	std::thread::_Invoker<>::_M_invoke<>()
+_ZNSt6thread8_InvokerISt5tupleIJPFvPiEDnEEEclEv	std::thread::_Invoker<>::operator()()
+_ZNSt6thread11_State_implINS_8_InvokerISt5tupleIJPFvPiEDnEEEEE6_M_runEv	std::thread::_State_impl<>::_M_run()

src/flags.cc

@@ -0,0 +1,158 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#include "glog/flags.h"
+
+#include <cstdlib>
+#include <cstring>
+
+#include "base/commandlineflags.h"
+#include "glog/log_severity.h"
+
+namespace {
+
+// Compute the default value for --log_dir
+static const char* DefaultLogDir() {
+  constexpr const char* const names[]{"GOOGLE_LOG_DIR", "TEST_TMPDIR"};
+  for (const char* const name : names) {
+    const char* const env = std::getenv(name);
+    if (env != nullptr && env[0] != '\0') {
+      return env;
+    }
+  }
+  return "";
+}
+
+bool BoolFromEnv(const char* varname, bool defval) {
+  const char* const valstr = getenv(varname);
+  if (!valstr) {
+    return defval;
+  }
+  return std::memchr("tTyY1\0", valstr[0], 6) != nullptr;
+}
+
+}  // namespace
+
+GLOG_DEFINE_bool(timestamp_in_logfile_name,
+                 BoolFromEnv("GOOGLE_TIMESTAMP_IN_LOGFILE_NAME", true),
+                 "put a timestamp at the end of the log file name");
+GLOG_DEFINE_bool(logtostderr, BoolFromEnv("GOOGLE_LOGTOSTDERR", false),
+                 "log messages go to stderr instead of logfiles");
+GLOG_DEFINE_bool(alsologtostderr, BoolFromEnv("GOOGLE_ALSOLOGTOSTDERR", false),
+                 "log messages go to stderr in addition to logfiles");
+GLOG_DEFINE_bool(colorlogtostderr, false,
+                 "color messages logged to stderr (if supported by terminal)");
+GLOG_DEFINE_bool(colorlogtostdout, false,
+                 "color messages logged to stdout (if supported by terminal)");
+GLOG_DEFINE_bool(logtostdout, BoolFromEnv("GOOGLE_LOGTOSTDOUT", false),
+                 "log messages go to stdout instead of logfiles");
+#ifdef GLOG_OS_LINUX
+GLOG_DEFINE_bool(
+    drop_log_memory, true,
+    "Drop in-memory buffers of log contents. "
+    "Logs can grow very quickly and they are rarely read before they "
+    "need to be evicted from memory. Instead, drop them from memory "
+    "as soon as they are flushed to disk.");
+#endif
+
+// By default, errors (including fatal errors) get logged to stderr as
+// well as the file.
+//
+// The default is ERROR instead of FATAL so that users can see problems
+// when they run a program without having to look in another file.
+GLOG_DEFINE_int32(
+    stderrthreshold, google::GLOG_ERROR,
+    "log messages at or above this level are copied to stderr in "
+    "addition to logfiles.  This flag obsoletes --alsologtostderr.");
+
+GLOG_DEFINE_string(alsologtoemail, "",
+                   "log messages go to these email addresses "
+                   "in addition to logfiles");
+GLOG_DEFINE_bool(log_file_header, true,
+                 "Write the file header at the start of each log file");
+GLOG_DEFINE_bool(log_prefix, true,
+                 "Prepend the log prefix to the start of each log line");
+GLOG_DEFINE_bool(log_year_in_prefix, true,
+                 "Include the year in the log prefix");
+GLOG_DEFINE_int32(minloglevel, 0,
+                  "Messages logged at a lower level than this don't "
+                  "actually get logged anywhere");
+GLOG_DEFINE_int32(logbuflevel, 0,
+                  "Buffer log messages logged at this level or lower"
+                  " (-1 means don't buffer; 0 means buffer INFO only;"
+                  " ...)");
+GLOG_DEFINE_int32(logbufsecs, 30,
+                  "Buffer log messages for at most this many seconds");
+
+GLOG_DEFINE_int32(logcleansecs, 60 * 5,  // every 5 minutes
+                  "Clean overdue logs every this many seconds");
+
+GLOG_DEFINE_int32(logemaillevel, 999,
+                  "Email log messages logged at this level or higher"
+                  " (0 means email all; 3 means email FATAL only;"
+                  " ...)");
+GLOG_DEFINE_string(logmailer, "", "Mailer used to send logging email");
+
+GLOG_DEFINE_int32(logfile_mode, 0664, "Log file mode/permissions.");
+
+GLOG_DEFINE_string(
+    log_dir, DefaultLogDir(),
+    "If specified, logfiles are written into this directory instead "
+    "of the default logging directory.");
+GLOG_DEFINE_string(log_link, "",
+                   "Put additional links to the log "
+                   "files in this directory");
+
+GLOG_DEFINE_uint32(max_log_size, 1800,
+                   "approx. maximum log file size (in MB). A value of 0 will "
+                   "be silently overridden to 1.");
+
+GLOG_DEFINE_bool(stop_logging_if_full_disk, false,
+                 "Stop attempting to log to disk if the disk is full.");
+
+GLOG_DEFINE_string(log_backtrace_at, "",
+                   "Emit a backtrace when logging at file:linenum.");
+
+GLOG_DEFINE_bool(log_utc_time, false, "Use UTC time for logging.");
+
+GLOG_DEFINE_int32(v, 0,
+                  "Show all VLOG(m) messages for m <= this."
+                  " Overridable by --vmodule.");
+
+GLOG_DEFINE_string(
+    vmodule, "",
+    "per-module verbose level."
+    " Argument is a comma-separated list of <module name>=<log level>."
+    " <module name> is a glob pattern, matched against the filename base"
+    " (that is, name ignoring .cc/.h./-inl.h)."
+    " <log level> overrides any value given by --v.");
+
+GLOG_DEFINE_bool(symbolize_stacktrace, true,
+                 "Symbolize the stack trace in the tombstone");

src/fuzz_demangle.cc

@@ -0,0 +1,32 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+#include <cstring>
+
+#include "demangle.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const unsigned char* Data,
+                                      unsigned Size) {
+  if (Size >= 4095) {
+    return 0;
+  }
+  char Buffer[Size + 1];
+  std::memcpy(Buffer, Data, Size);
+  Buffer[Size] = 0;
+  char demangled[4096];
+  google::Demangle(Buffer, demangled, Size);
+  return 0;
+}

src/glog/flags.h

@@ -0,0 +1,191 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#ifndef GLOG_FLAGS_H
+#define GLOG_FLAGS_H
+
+#include <string>
+
+#if defined(GLOG_USE_GFLAGS)
+#  include <gflags/gflags.h>
+#endif
+
+#if defined(GLOG_USE_GLOG_EXPORT)
+#  include "glog/export.h"
+#endif
+
+#if !defined(GLOG_EXPORT)
+#  error <glog/flags.h> was not included correctly. See the documentation for how to consume the library.
+#endif
+
+#include "glog/platform.h"
+#include "glog/types.h"
+
+#pragma push_macro("DECLARE_VARIABLE")
+#pragma push_macro("DECLARE_bool")
+#pragma push_macro("DECLARE_string")
+#pragma push_macro("DECLARE_int32")
+#pragma push_macro("DECLARE_uint32")
+
+#ifdef DECLARE_VARIABLE
+#  undef DECLARE_VARIABLE
+#endif
+
+#ifdef DECLARE_bool
+#  undef DECLARE_bool
+#endif
+
+#ifdef DECLARE_string
+#  undef DECLARE_string
+#endif
+
+#ifdef DECLARE_int32
+#  undef DECLARE_int32
+#endif
+
+#ifdef DECLARE_uint32
+#  undef DECLARE_uint32
+#endif
+
+#ifndef DECLARE_VARIABLE
+#  define DECLARE_VARIABLE(type, shorttype, name, tn) \
+    namespace fL##shorttype {                         \
+      extern GLOG_EXPORT type FLAGS_##name;           \
+    }                                                 \
+    using fL##shorttype::FLAGS_##name
+
+// bool specialization
+#  define DECLARE_bool(name) DECLARE_VARIABLE(bool, B, name, bool)
+
+// int32 specialization
+#  define DECLARE_int32(name) DECLARE_VARIABLE(google::int32, I, name, int32)
+
+#  if !defined(DECLARE_uint32)
+// uint32 specialization
+#    define DECLARE_uint32(name) \
+      DECLARE_VARIABLE(google::uint32, U, name, uint32)
+#  endif  // !defined(DECLARE_uint32) && !defined(GLOG_USE_GFLAGS)
+
+// Special case for string, because we have to specify the namespace
+// std::string, which doesn't play nicely with our FLAG__namespace hackery.
+#  define DECLARE_string(name)                    \
+    namespace fLS {                               \
+    extern GLOG_EXPORT std::string& FLAGS_##name; \
+    }                                             \
+    using fLS::FLAGS_##name
+#endif
+
+DECLARE_int32(logemaillevel);
+DECLARE_int32(logcleansecs);
+
+#ifdef GLOG_OS_LINUX
+DECLARE_bool(drop_log_memory);
+#endif
+DECLARE_string(alsologtoemail);
+DECLARE_string(log_backtrace_at);
+
+// Set whether appending a timestamp to the log file name
+DECLARE_bool(timestamp_in_logfile_name);
+
+// Set whether log messages go to stdout instead of logfiles
+DECLARE_bool(logtostdout);
+
+// Set color messages logged to stdout (if supported by terminal).
+DECLARE_bool(colorlogtostdout);
+
+// Set whether log messages go to stderr instead of logfiles
+DECLARE_bool(logtostderr);
+
+// Set whether log messages go to stderr in addition to logfiles.
+DECLARE_bool(alsologtostderr);
+
+// Set color messages logged to stderr (if supported by terminal).
+DECLARE_bool(colorlogtostderr);
+
+// Log messages at a level >= this flag are automatically sent to
+// stderr in addition to log files.
+DECLARE_int32(stderrthreshold);
+
+// Set whether the log file header should be written upon creating a file.
+DECLARE_bool(log_file_header);
+
+// Set whether the log prefix should be prepended to each line of output.
+DECLARE_bool(log_prefix);
+
+// Set whether the year should be included in the log prefix.
+DECLARE_bool(log_year_in_prefix);
+
+// Log messages at a level <= this flag are buffered.
+// Log messages at a higher level are flushed immediately.
+DECLARE_int32(logbuflevel);
+
+// Sets the maximum number of seconds which logs may be buffered for.
+DECLARE_int32(logbufsecs);
+
+// Log suppression level: messages logged at a lower level than this
+// are suppressed.
+DECLARE_int32(minloglevel);
+
+// If specified, logfiles are written into this directory instead of the
+// default logging directory.
+DECLARE_string(log_dir);
+
+// Set the log file mode.
+DECLARE_int32(logfile_mode);
+
+// Sets the path of the directory into which to put additional links
+// to the log files.
+DECLARE_string(log_link);
+
+DECLARE_int32(v);  // in vlog_is_on.cc
+
+DECLARE_string(vmodule);  // also in vlog_is_on.cc
+
+// Sets the maximum log file size (in MB).
+DECLARE_uint32(max_log_size);
+
+// Sets whether to avoid logging to the disk if the disk is full.
+DECLARE_bool(stop_logging_if_full_disk);
+
+// Use UTC time for logging
+DECLARE_bool(log_utc_time);
+
+// Mailer used to send logging email
+DECLARE_string(logmailer);
+
+DECLARE_bool(symbolize_stacktrace);
+
+#pragma pop_macro("DECLARE_VARIABLE")
+#pragma pop_macro("DECLARE_bool")
+#pragma pop_macro("DECLARE_string")
+#pragma pop_macro("DECLARE_int32")
+#pragma pop_macro("DECLARE_uint32")
+
+#endif  // GLOG_FLAGS_H

src/glog/log_severity.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2007, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -30,6 +30,16 @@
 #ifndef BASE_LOG_SEVERITY_H__
 #define BASE_LOG_SEVERITY_H__
 
+#if defined(GLOG_USE_GLOG_EXPORT)
+#  include "glog/export.h"
+#endif
+
+#if !defined(GLOG_EXPORT)
+#  error <glog/log_severity.h> was not included correctly. See the documentation for how to consume the library.
+#endif
+
+namespace google {
+
 // The recommended semantics of the log levels are as follows:
 //
 // INFO:
@@ -48,27 +58,43 @@
 // Variables of type LogSeverity are widely taken to lie in the range
 // [0, NUM_SEVERITIES-1].  Be careful to preserve this assumption if
 // you ever need to change their values or add a new severity.
-typedef int LogSeverity;
 
-const int GLOG_INFO = 0, GLOG_WARNING = 1, GLOG_ERROR = 2, GLOG_FATAL = 3,
-  NUM_SEVERITIES = 4;
+enum LogSeverity {
+  GLOG_INFO = 0,
+  GLOG_WARNING = 1,
+  GLOG_ERROR = 2,
+  GLOG_FATAL = 3,
 #ifndef GLOG_NO_ABBREVIATED_SEVERITIES
 #  ifdef ERROR
 #  error ERROR macro is defined. Define GLOG_NO_ABBREVIATED_SEVERITIES before including logging.h. See the document for detail.
 #  endif
-const int INFO = GLOG_INFO, WARNING = GLOG_WARNING,
-  ERROR = GLOG_ERROR, FATAL = GLOG_FATAL;
+  INFO = GLOG_INFO,
+  WARNING = GLOG_WARNING,
+  ERROR = GLOG_ERROR,
+  FATAL = GLOG_FATAL
 #endif
+};
+
+#if defined(__cpp_inline_variables)
+#  if (__cpp_inline_variables >= 201606L)
+#    define GLOG_INLINE_VARIABLE inline
+#  endif  // (__cpp_inline_variables >= 201606L)
+#endif    // defined(__cpp_inline_variables)
+
+#if !defined(GLOG_INLINE_VARIABLE)
+#  define GLOG_INLINE_VARIABLE
+#endif  // !defined(GLOG_INLINE_VARIABLE)
+
+GLOG_INLINE_VARIABLE
+constexpr int NUM_SEVERITIES = 4;
 
 // DFATAL is FATAL in debug mode, ERROR in normal mode
 #ifdef NDEBUG
-#define DFATAL_LEVEL ERROR
+#  define DFATAL_LEVEL ERROR
 #else
-#define DFATAL_LEVEL FATAL
+#  define DFATAL_LEVEL FATAL
 #endif
 
-extern GLOG_EXPORT const char* const LogSeverityNames[NUM_SEVERITIES];
-
 // NDEBUG usage helpers related to (RAW_)DCHECK:
 //
 // DEBUG_MODE is for small !NDEBUG uses like
@@ -89,10 +115,12 @@ extern GLOG_EXPORT const char* const LogSeverityNames[NUM_SEVERITIES];
 //
 #ifdef NDEBUG
 enum { DEBUG_MODE = 0 };
-#define IF_DEBUG_MODE(x)
+#  define IF_DEBUG_MODE(x)
 #else
 enum { DEBUG_MODE = 1 };
-#define IF_DEBUG_MODE(x) x
+#  define IF_DEBUG_MODE(x) x
 #endif
 
+} // namespace google
+
 #endif  // BASE_LOG_SEVERITY_H__

src/glog/platform.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2008, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -35,21 +35,24 @@
 #define GLOG_PLATFORM_H
 
 #if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
-#define GLOG_OS_WINDOWS
+#  define GLOG_OS_WINDOWS
 #elif defined(__CYGWIN__) || defined(__CYGWIN32__)
-#define GLOG_OS_CYGWIN
+#  define GLOG_OS_CYGWIN
 #elif defined(linux) || defined(__linux) || defined(__linux__)
-#ifndef GLOG_OS_LINUX
-#define GLOG_OS_LINUX
-#endif
+#  define GLOG_OS_LINUX
+#  if defined(__ANDROID__)
+#    define GLOG_OS_ANDROID
+#  endif
 #elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
-#define GLOG_OS_MACOSX
+#  define GLOG_OS_MACOSX
 #elif defined(__FreeBSD__)
-#define GLOG_OS_FREEBSD
+#  define GLOG_OS_FREEBSD
 #elif defined(__NetBSD__)
-#define GLOG_OS_NETBSD
+#  define GLOG_OS_NETBSD
 #elif defined(__OpenBSD__)
-#define GLOG_OS_OPENBSD
+#  define GLOG_OS_OPENBSD
+#elif defined(__EMSCRIPTEN__)
+#  define GLOG_OS_EMSCRIPTEN
 #else
 // TODO(hamaji): Add other platforms.
 #error Platform not supported by glog. Please consider to contribute platform information by submitting a pull request on Github.

src/glog/raw_logging.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2006, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -36,19 +36,19 @@
 #ifndef GLOG_RAW_LOGGING_H
 #define GLOG_RAW_LOGGING_H
 
-#include <ctime>
-
-@ac_google_start_namespace@
-
-#include <glog/log_severity.h>
-#include <glog/logging.h>
-#include <glog/vlog_is_on.h>
-
-#if defined(__GNUC__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wvariadic-macros"
+#if defined(GLOG_USE_GLOG_EXPORT)
+#  include "glog/export.h"
 #endif
 
+#if !defined(GLOG_EXPORT)
+#  error <glog/raw_logging.h> was not included correctly. See the documentation for how to consume the library.
+#endif
+
+#include "glog/log_severity.h"
+#include "glog/vlog_is_on.h"
+
+namespace google {
+
 // This is similar to LOG(severity) << format... and VLOG(level) << format..,
 // but
 // * it is to be used ONLY by low-level modules that can't use normal LOG()
@@ -65,7 +65,7 @@
 //   I20200821 211317 file.cc:142] RAW: status is 20
 #define RAW_LOG(severity, ...)         \
   do {                                 \
-    switch (@ac_google_namespace@::GLOG_ ## severity) {  \
+    switch (google::GLOG_##severity) { \
       case 0:                          \
         RAW_LOG_INFO(__VA_ARGS__);     \
         break;                         \
@@ -86,44 +86,44 @@
 // The following STRIP_LOG testing is performed in the header file so that it's
 // possible to completely compile out the logging code and the log messages.
 #if !defined(STRIP_LOG) || STRIP_LOG == 0
-#define RAW_VLOG(verboselevel, ...) \
+#  define RAW_VLOG(verboselevel, ...) \
     do {                              \
       if (VLOG_IS_ON(verboselevel)) { \
         RAW_LOG_INFO(__VA_ARGS__);    \
       }                               \
     } while (0)
 #else
-#define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
+#  define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
 #endif  // STRIP_LOG == 0
 
 #if !defined(STRIP_LOG) || STRIP_LOG == 0
-#define RAW_LOG_INFO(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_INFO, \
-                                   __FILE__, __LINE__, __VA_ARGS__)
+#  define RAW_LOG_INFO(...) \
+    google::RawLog__(google::GLOG_INFO, __FILE__, __LINE__, __VA_ARGS__)
 #else
-#define RAW_LOG_INFO(...) @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__)
+#  define RAW_LOG_INFO(...) google::RawLogStub__(0, __VA_ARGS__)
 #endif  // STRIP_LOG == 0
 
 #if !defined(STRIP_LOG) || STRIP_LOG <= 1
-#define RAW_LOG_WARNING(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_WARNING,   \
-                                      __FILE__, __LINE__, __VA_ARGS__)
+#  define RAW_LOG_WARNING(...) \
+    google::RawLog__(google::GLOG_WARNING, __FILE__, __LINE__, __VA_ARGS__)
 #else
-#define RAW_LOG_WARNING(...) @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__)
+#  define RAW_LOG_WARNING(...) google::RawLogStub__(0, __VA_ARGS__)
 #endif  // STRIP_LOG <= 1
 
 #if !defined(STRIP_LOG) || STRIP_LOG <= 2
-#define RAW_LOG_ERROR(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_ERROR,       \
-                                    __FILE__, __LINE__, __VA_ARGS__)
+#  define RAW_LOG_ERROR(...) \
+    google::RawLog__(google::GLOG_ERROR, __FILE__, __LINE__, __VA_ARGS__)
 #else
-#define RAW_LOG_ERROR(...) @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__)
+#  define RAW_LOG_ERROR(...) google::RawLogStub__(0, __VA_ARGS__)
 #endif  // STRIP_LOG <= 2
 
 #if !defined(STRIP_LOG) || STRIP_LOG <= 3
-#define RAW_LOG_FATAL(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_FATAL,       \
-                                    __FILE__, __LINE__, __VA_ARGS__)
+#  define RAW_LOG_FATAL(...) \
+    google::RawLog__(google::GLOG_FATAL, __FILE__, __LINE__, __VA_ARGS__)
 #else
-#define RAW_LOG_FATAL(...) \
+#  define RAW_LOG_FATAL(...)                \
     do {                                    \
-    @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__);        \
+      google::RawLogStub__(0, __VA_ARGS__); \
       exit(EXIT_FAILURE);                   \
     } while (0)
 #endif  // STRIP_LOG <= 3
@@ -143,28 +143,21 @@
 // Debug versions of RAW_LOG and RAW_CHECK
 #ifndef NDEBUG
 
-#define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
-#define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
+#  define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
+#  define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
 
 #else  // NDEBUG
 
-#define RAW_DLOG(severity, ...)                                 \
-  while (false)                                                 \
-    RAW_LOG(severity, __VA_ARGS__)
-#define RAW_DCHECK(condition, message) \
-  while (false) \
-    RAW_CHECK(condition, message)
+#  define RAW_DLOG(severity, ...) \
+    while (false) RAW_LOG(severity, __VA_ARGS__)
+#  define RAW_DCHECK(condition, message) \
+    while (false) RAW_CHECK(condition, message)
 
 #endif  // NDEBUG
 
-#if defined(__GNUC__)
-#pragma GCC diagnostic pop
-#endif
-
 // Stub log function used to work around for unused variable warnings when
 // building with STRIP_LOG > 0.
-static inline void RawLogStub__(int /* ignored */, ...) {
-}
+static inline void RawLogStub__(int /* ignored */, ...) {}
 
 // Helper function to implement RAW_LOG and RAW_VLOG
 // Logs format... at "severity" level, reporting it
@@ -172,8 +165,12 @@ static inline void RawLogStub__(int /* ignored */, ...) {
 // This does not allocate memory or acquire locks.
 GLOG_EXPORT void RawLog__(LogSeverity severity, const char* file, int line,
                           const char* format, ...)
-    @ac_cv___attribute___printf_4_5@;
-
-@ac_google_end_namespace@
+#if defined(__has_attribute)
+#  if __has_attribute(used)
+    __attribute__((__format__(__printf__, 4, 5)))
+#  endif
+#endif
+    ;
+}  // namespace google
 
 #endif  // GLOG_RAW_LOGGING_H

src/glog/stl_logging.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2003, Google Inc.
+// Copyright (c) 2023, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -35,85 +35,52 @@
 // vector<int> v1, v2;
 // CHECK_EQ(v1, v2);
 //
-// If you want to use this header file with hash maps or slist, you
-// need to define macros before including this file:
-//
-// - GLOG_STL_LOGGING_FOR_UNORDERED     - <unordered_map> and <unordered_set>
-// - GLOG_STL_LOGGING_FOR_TR1_UNORDERED - <tr1/unordered_(map|set)>
-// - GLOG_STL_LOGGING_FOR_EXT_HASH      - <ext/hash_(map|set)>
-// - GLOG_STL_LOGGING_FOR_EXT_SLIST     - <ext/slist>
-//
 
-#ifndef UTIL_GTL_STL_LOGGING_INL_H_
-#define UTIL_GTL_STL_LOGGING_INL_H_
-
-#if !@ac_cv_cxx_using_operator@
-# error We do not support stl_logging for this compiler
-#endif
+#ifndef GLOG_STL_LOGGING_H
+#define GLOG_STL_LOGGING_H
 
 #include <deque>
 #include <list>
 #include <map>
 #include <ostream>
 #include <set>
+#include <unordered_map>
+#include <unordered_set>
 #include <utility>
 #include <vector>
 
-#if defined(GLOG_STL_LOGGING_FOR_UNORDERED) && __cplusplus >= 201103L
-# include <unordered_map>
-# include <unordered_set>
-#endif
-
-#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
-# include <tr1/unordered_map>
-# include <tr1/unordered_set>
-#endif
-
-#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
-# include <ext/hash_set>
-# include <ext/hash_map>
-#endif
-#ifdef GLOG_STL_LOGGING_FOR_EXT_SLIST
-# include <ext/slist>
-#endif
-
 // Forward declare these two, and define them after all the container streams
 // operators so that we can recurse from pair -> container -> container -> pair
 // properly.
-template<class First, class Second>
+template <class First, class Second>
 std::ostream& operator<<(std::ostream& out, const std::pair<First, Second>& p);
 
-@ac_google_start_namespace@
+namespace google {
 
-template<class Iter>
+template <class Iter>
 void PrintSequence(std::ostream& out, Iter begin, Iter end);
 
-@ac_google_end_namespace@
-
-#define OUTPUT_TWO_ARG_CONTAINER(Sequence) \
-template<class T1, class T2> \
-inline std::ostream& operator<<(std::ostream& out, \
-                                const Sequence<T1, T2>& seq) { \
-  @ac_google_namespace@::PrintSequence(out, seq.begin(), seq.end()); \
-  return out; \
 }
+#define OUTPUT_TWO_ARG_CONTAINER(Sequence)                       \
+  template <class T1, class T2>                                  \
+  inline std::ostream& operator<<(std::ostream& out,             \
+                                  const Sequence<T1, T2>& seq) { \
+    google::PrintSequence(out, seq.begin(), seq.end());          \
+    return out;                                                  \
+  }
 
 OUTPUT_TWO_ARG_CONTAINER(std::vector)
 OUTPUT_TWO_ARG_CONTAINER(std::deque)
 OUTPUT_TWO_ARG_CONTAINER(std::list)
-#ifdef GLOG_STL_LOGGING_FOR_EXT_SLIST
-OUTPUT_TWO_ARG_CONTAINER(__gnu_cxx::slist)
-#endif
-
 #undef OUTPUT_TWO_ARG_CONTAINER
 
 #define OUTPUT_THREE_ARG_CONTAINER(Sequence)                         \
-template<class T1, class T2, class T3> \
-inline std::ostream& operator<<(std::ostream& out, \
+  template <class T1, class T2, class T3>                            \
+  inline std::ostream& operator<<(std::ostream& out,                 \
                                   const Sequence<T1, T2, T3>& seq) { \
-  @ac_google_namespace@::PrintSequence(out, seq.begin(), seq.end()); \
+    google::PrintSequence(out, seq.begin(), seq.end());              \
     return out;                                                      \
-}
+  }
 
 OUTPUT_THREE_ARG_CONTAINER(std::set)
 OUTPUT_THREE_ARG_CONTAINER(std::multiset)
@@ -121,63 +88,42 @@ OUTPUT_THREE_ARG_CONTAINER(std::multiset)
 #undef OUTPUT_THREE_ARG_CONTAINER
 
 #define OUTPUT_FOUR_ARG_CONTAINER(Sequence)                              \
-template<class T1, class T2, class T3, class T4> \
-inline std::ostream& operator<<(std::ostream& out, \
+  template <class T1, class T2, class T3, class T4>                      \
+  inline std::ostream& operator<<(std::ostream& out,                     \
                                   const Sequence<T1, T2, T3, T4>& seq) { \
-  @ac_google_namespace@::PrintSequence(out, seq.begin(), seq.end()); \
+    google::PrintSequence(out, seq.begin(), seq.end());                  \
     return out;                                                          \
-}
+  }
 
 OUTPUT_FOUR_ARG_CONTAINER(std::map)
 OUTPUT_FOUR_ARG_CONTAINER(std::multimap)
-#if defined(GLOG_STL_LOGGING_FOR_UNORDERED) && __cplusplus >= 201103L
 OUTPUT_FOUR_ARG_CONTAINER(std::unordered_set)
 OUTPUT_FOUR_ARG_CONTAINER(std::unordered_multiset)
-#endif
-#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
-OUTPUT_FOUR_ARG_CONTAINER(std::tr1::unordered_set)
-OUTPUT_FOUR_ARG_CONTAINER(std::tr1::unordered_multiset)
-#endif
-#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
-OUTPUT_FOUR_ARG_CONTAINER(__gnu_cxx::hash_set)
-OUTPUT_FOUR_ARG_CONTAINER(__gnu_cxx::hash_multiset)
-#endif
-
 #undef OUTPUT_FOUR_ARG_CONTAINER
 
 #define OUTPUT_FIVE_ARG_CONTAINER(Sequence)                                  \
-template<class T1, class T2, class T3, class T4, class T5> \
-inline std::ostream& operator<<(std::ostream& out, \
+  template <class T1, class T2, class T3, class T4, class T5>                \
+  inline std::ostream& operator<<(std::ostream& out,                         \
                                   const Sequence<T1, T2, T3, T4, T5>& seq) { \
-  @ac_google_namespace@::PrintSequence(out, seq.begin(), seq.end()); \
+    google::PrintSequence(out, seq.begin(), seq.end());                      \
     return out;                                                              \
-}
+  }
 
-#if defined(GLOG_STL_LOGGING_FOR_UNORDERED) && __cplusplus >= 201103L
 OUTPUT_FIVE_ARG_CONTAINER(std::unordered_map)
 OUTPUT_FIVE_ARG_CONTAINER(std::unordered_multimap)
-#endif
-#ifdef GLOG_STL_LOGGING_FOR_TR1_UNORDERED
-OUTPUT_FIVE_ARG_CONTAINER(std::tr1::unordered_map)
-OUTPUT_FIVE_ARG_CONTAINER(std::tr1::unordered_multimap)
-#endif
-#ifdef GLOG_STL_LOGGING_FOR_EXT_HASH
-OUTPUT_FIVE_ARG_CONTAINER(__gnu_cxx::hash_map)
-OUTPUT_FIVE_ARG_CONTAINER(__gnu_cxx::hash_multimap)
-#endif
 
 #undef OUTPUT_FIVE_ARG_CONTAINER
 
-template<class First, class Second>
+template <class First, class Second>
 inline std::ostream& operator<<(std::ostream& out,
                                 const std::pair<First, Second>& p) {
   out << '(' << p.first << ", " << p.second << ')';
   return out;
 }
 
-@ac_google_start_namespace@
+namespace google {
 
-template<class Iter>
+template <class Iter>
 inline void PrintSequence(std::ostream& out, Iter begin, Iter end) {
   // Output at most 100 elements -- appropriate if used for logging.
   for (int i = 0; begin != end && i < 100; ++i, ++begin) {
@@ -189,7 +135,7 @@ inline void PrintSequence(std::ostream& out, Iter begin, Iter end) {
   }
 }
 
-@ac_google_end_namespace@
+}  // namespace google
 
 // Note that this is technically undefined behavior! We are adding things into
 // the std namespace for a reason though -- we are providing new operations on
@@ -215,6 +161,8 @@ inline void PrintSequence(std::ostream& out, Iter begin, Iter end) {
 // move all of the *definitions* into namespace std, bet we need to ensure no
 // one references them first. This lets us take that step. We cannot define them
 // in both because that would create ambiguous overloads when both are found.
-namespace std { using ::operator<<; }
+namespace std {
+using ::operator<<;
+}
 
-#endif  // UTIL_GTL_STL_LOGGING_INL_H_
+#endif  // GLOG_STL_LOGGING_H

src/glog/types.h

@@ -0,0 +1,81 @@
+
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#ifndef GLOG_TYPES_H
+#define GLOG_TYPES_H
+
+#include <cstddef>
+#include <cstdint>
+
+namespace google {
+
+using int32 = std::int32_t;
+using uint32 = std::uint32_t;
+using int64 = std::int64_t;
+using uint64 = std::uint64_t;
+
+}  // namespace google
+
+#if defined(__has_feature)
+#  if __has_feature(thread_sanitizer)
+#    define GLOG_SANITIZE_THREAD 1
+#  endif
+#endif
+
+#if !defined(GLOG_SANITIZE_THREAD) && defined(__SANITIZE_THREAD__) && \
+    __SANITIZE_THREAD__
+#  define GLOG_SANITIZE_THREAD 1
+#endif
+
+#if defined(GLOG_SANITIZE_THREAD)
+#  define GLOG_IFDEF_THREAD_SANITIZER(X) X
+#else
+#  define GLOG_IFDEF_THREAD_SANITIZER(X)
+#endif
+
+#if defined(_MSC_VER)
+#  define GLOG_MSVC_PUSH_DISABLE_WARNING(n) \
+    __pragma(warning(push)) __pragma(warning(disable : n))
+#  define GLOG_MSVC_POP_WARNING() __pragma(warning(pop))
+#else
+#  define GLOG_MSVC_PUSH_DISABLE_WARNING(n)
+#  define GLOG_MSVC_POP_WARNING()
+#endif
+
+#if defined(GLOG_SANITIZE_THREAD)
+// We need to identify the static variables as "benign" races
+// to avoid noisy reports from TSAN.
+extern "C" void AnnotateBenignRaceSized(const char* file, int line,
+                                        const volatile void* mem, size_t size,
+                                        const char* description);
+#endif  // defined(GLOG_SANITIZE_THREAD)
+
+#endif  // GLOG_TYPES_H

src/glog/vlog_is_on.h

@@ -1,4 +1,4 @@
-// Copyright (c) 1999, 2007, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -58,10 +58,21 @@
 // CAVEAT: --vmodule functionality is not available in non gcc compilers.
 //
 
-#ifndef BASE_VLOG_IS_ON_H_
-#define BASE_VLOG_IS_ON_H_
+#ifndef GLOG_VLOG_IS_ON_H
+#define GLOG_VLOG_IS_ON_H
 
-#include <glog/log_severity.h>
+#include <cstddef>
+
+#if defined(GLOG_USE_GLOG_EXPORT)
+#  include "glog/export.h"
+#endif
+
+#if !defined(GLOG_EXPORT)
+#  error <glog/vlog_is_on.h> was not included correctly. See the documentation for how to consume the library.
+#endif
+
+#include "glog/flags.h"
+#include "glog/types.h"
 
 #if defined(__GNUC__)
 // We emit an anonymous static int* variable at every VLOG_IS_ON(n) site.
@@ -70,19 +81,25 @@
 // it's either FLAGS_v or an appropriate internal variable
 // matching the current source file that represents results of
 // parsing of --vmodule flag and/or SetVLOGLevel calls.
-#define VLOG_IS_ON(verboselevel)                                \
-  __extension__  \
-  ({ static @ac_google_namespace@::SiteFlag vlocal__ = {NULL, NULL, 0, NULL};       \
-     @ac_google_namespace@::int32 verbose_level__ = (verboselevel);                    \
-     (vlocal__.level == NULL ? @ac_google_namespace@::InitVLOG3__(&vlocal__, &FLAGS_v, \
-                        __FILE__, verbose_level__) : *vlocal__.level >= verbose_level__); \
+#  define VLOG_IS_ON(verboselevel)                                       \
+    __extension__({                                                      \
+      static google::SiteFlag vlocal__ = {nullptr, nullptr, 0, nullptr}; \
+      GLOG_IFDEF_THREAD_SANITIZER(AnnotateBenignRaceSized(               \
+          __FILE__, __LINE__, &vlocal__, sizeof(google::SiteFlag), "")); \
+      google::int32 verbose_level__ = (verboselevel);                    \
+      (vlocal__.level == nullptr                                         \
+           ? google::InitVLOG3__(&vlocal__, &FLAGS_v, __FILE__,          \
+                                 verbose_level__)                        \
+           : *vlocal__.level >= verbose_level__);                        \
     })
 #else
 // GNU extensions not available, so we do not support --vmodule.
 // Dynamic value of FLAGS_v always controls the logging level.
-#define VLOG_IS_ON(verboselevel) (FLAGS_v >= (verboselevel))
+#  define VLOG_IS_ON(verboselevel) (FLAGS_v >= (verboselevel))
 #endif
 
+namespace google {
+
 // Set VLOG(_IS_ON) level for module_pattern to log_level.
 // This lets us dynamically control what is normally set by the --vmodule flag.
 // Returns the level that previously applied to module_pattern.
@@ -96,13 +113,13 @@ extern GLOG_EXPORT int SetVLOGLevel(const char* module_pattern, int log_level);
 // Various declarations needed for VLOG_IS_ON above: =========================
 
 struct SiteFlag {
-  @ac_google_namespace@::int32* level;
+  int32* level;
   const char* base_name;
-  size_t base_len;
+  std::size_t base_len;
   SiteFlag* next;
 };
 
-// Helper routine which determines the logging info for a particalur VLOG site.
+// Helper routine which determines the logging info for a particular VLOG site.
 //   site_flag     is the address of the site-local pointer to the controlling
 //                 verbosity level
 //   site_default  is the default to use for *site_flag
@@ -110,9 +127,10 @@ struct SiteFlag {
 //   verbose_level is the argument to VLOG_IS_ON
 // We will return the return value for VLOG_IS_ON
 // and if possible set *site_flag appropriately.
-extern GLOG_EXPORT bool InitVLOG3__(
-    @ac_google_namespace@::SiteFlag* site_flag,
-    @ac_google_namespace@::int32* site_default, const char* fname,
-    @ac_google_namespace@::int32 verbose_level);
+extern GLOG_EXPORT bool InitVLOG3__(SiteFlag* site_flag,
+                                    int32* site_default,
+                                    const char* fname,
+                                    int32 verbose_level);
+} // namespace google
 
-#endif  // BASE_VLOG_IS_ON_H_
+#endif  // GLOG_VLOG_IS_ON_H

src/googletest.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2009, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -31,11 +31,13 @@
 //   (based on googletest: http://code.google.com/p/googletest/)
 
 #ifdef GOOGLETEST_H__
-#error You must not include this file twice.
+#  error You must not include this file twice.
 #endif
 #define GOOGLETEST_H__
 
-#include "utilities.h"
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
 
 #include <cctype>
 #include <csetjmp>
@@ -43,41 +45,46 @@
 #include <cstdlib>
 #include <ctime>
 #include <map>
+#include <new>
 #include <sstream>
 #include <string>
+#include <utility>
 #include <vector>
 
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
+#include "config.h"
 #ifdef HAVE_UNISTD_H
 #  include <unistd.h>
 #endif
 
+#if defined(GLOG_USE_WINDOWS_PORT)
+#  include "port.h"
+#endif  // defined(GLOG_USE_WINDOWS_PORT)
 #include "base/commandlineflags.h"
+#include "utilities.h"
 
 #if __cplusplus < 201103L && !defined(_MSC_VER)
-#define GOOGLE_GLOG_THROW_BAD_ALLOC throw (std::bad_alloc)
+#  define GOOGLE_GLOG_THROW_BAD_ALLOC throw(std::bad_alloc)
 #else
-#define GOOGLE_GLOG_THROW_BAD_ALLOC
+#  define GOOGLE_GLOG_THROW_BAD_ALLOC
 #endif
 
 using std::map;
 using std::string;
 using std::vector;
 
-_START_GOOGLE_NAMESPACE_
-
-extern GLOG_EXPORT void (*g_logging_fail_func)();
-
-_END_GOOGLE_NAMESPACE_
+namespace google {
+extern void (*g_logging_fail_func)();
+extern void GetExistingTempDirectories(std::vector<std::string>& list);
+extern int posix_strerror_r(int err, char* buf, size_t len);
+extern std::string StrError(int err);
+}  // namespace google
 
 #undef GLOG_EXPORT
 #define GLOG_EXPORT
 
 static inline string GetTempDir() {
   vector<string> temp_directories_list;
-  google::GetExistingTempDirectories(&temp_directories_list);
+  google::GetExistingTempDirectories(temp_directories_list);
 
   if (temp_directories_list.empty()) {
     fprintf(stderr, "No temporary directory found\n");
@@ -117,7 +124,7 @@ DEFINE_int32(benchmark_iters, 100000, "Number of iterations per benchmark");
 using testing::InitGoogleTest;
 #else
 
-_START_GOOGLE_NAMESPACE_
+namespace google {
 
 void InitGoogleTest(int*, char**);
 
@@ -125,16 +132,16 @@ void InitGoogleTest(int*, char**) {}
 
 // The following is some bare-bones testing infrastructure
 
-#define EXPECT_NEAR(val1, val2, abs_error)                                     \
+#  define EXPECT_NEAR(val1, val2, abs_error)                         \
     do {                                                             \
       if (abs(val1 - val2) > abs_error) {                            \
-      fprintf(stderr, "Check failed: %s within %s of %s\n", #val1, #abs_error, \
-              #val2);                                                          \
+        fprintf(stderr, "Check failed: %s within %s of %s\n", #val1, \
+                #abs_error, #val2);                                  \
         exit(EXIT_FAILURE);                                          \
       }                                                              \
     } while (0)
 
-#define EXPECT_TRUE(cond)                               \
+#  define EXPECT_TRUE(cond)                           \
     do {                                              \
       if (!(cond)) {                                  \
         fprintf(stderr, "Check failed: %s\n", #cond); \
@@ -142,22 +149,22 @@ void InitGoogleTest(int*, char**) {}
       }                                               \
     } while (0)
 
-#define EXPECT_FALSE(cond)  EXPECT_TRUE(!(cond))
+#  define EXPECT_FALSE(cond) EXPECT_TRUE(!(cond))
 
-#define EXPECT_OP(op, val1, val2)                                       \
+#  define EXPECT_OP(op, val1, val2)                                     \
     do {                                                                \
-    if (!((val1) op (val2))) {                                          \
+      if (!((val1)op(val2))) {                                          \
         fprintf(stderr, "Check failed: %s %s %s\n", #val1, #op, #val2); \
         exit(EXIT_FAILURE);                                             \
       }                                                                 \
     } while (0)
 
-#define EXPECT_EQ(val1, val2)  EXPECT_OP(==, val1, val2)
-#define EXPECT_NE(val1, val2)  EXPECT_OP(!=, val1, val2)
-#define EXPECT_GT(val1, val2)  EXPECT_OP(>, val1, val2)
-#define EXPECT_LT(val1, val2)  EXPECT_OP(<, val1, val2)
+#  define EXPECT_EQ(val1, val2) EXPECT_OP(==, val1, val2)
+#  define EXPECT_NE(val1, val2) EXPECT_OP(!=, val1, val2)
+#  define EXPECT_GT(val1, val2) EXPECT_OP(>, val1, val2)
+#  define EXPECT_LT(val1, val2) EXPECT_OP(<, val1, val2)
 
-#define EXPECT_NAN(arg)                                         \
+#  define EXPECT_NAN(arg)                                   \
     do {                                                    \
       if (!isnan(arg)) {                                    \
         fprintf(stderr, "Check failed: isnan(%s)\n", #arg); \
@@ -165,7 +172,7 @@ void InitGoogleTest(int*, char**) {}
       }                                                     \
     } while (0)
 
-#define EXPECT_INF(arg)                                         \
+#  define EXPECT_INF(arg)                                   \
     do {                                                    \
       if (!isinf(arg)) {                                    \
         fprintf(stderr, "Check failed: isinf(%s)\n", #arg); \
@@ -173,15 +180,15 @@ void InitGoogleTest(int*, char**) {}
       }                                                     \
     } while (0)
 
-#define EXPECT_DOUBLE_EQ(val1, val2)                                    \
+#  define EXPECT_DOUBLE_EQ(val1, val2)                             \
     do {                                                           \
-    if (((val1) < (val2) - 0.001 || (val1) > (val2) + 0.001)) {         \
+      if (((val1) < (val2)-0.001 || (val1) > (val2) + 0.001)) {    \
         fprintf(stderr, "Check failed: %s == %s\n", #val1, #val2); \
         exit(EXIT_FAILURE);                                        \
       }                                                            \
     } while (0)
 
-#define EXPECT_STREQ(val1, val2)                                        \
+#  define EXPECT_STREQ(val1, val2)                                      \
     do {                                                                \
       if (strcmp((val1), (val2)) != 0) {                                \
         fprintf(stderr, "Check failed: streq(%s, %s)\n", #val1, #val2); \
@@ -189,18 +196,31 @@ void InitGoogleTest(int*, char**) {}
       }                                                                 \
     } while (0)
 
-vector<void (*)()> g_testlist;  // the tests to run
+#  define EXPECT_THROW(statement, exception)                    \
+    do {                                                        \
+      try {                                                     \
+        statement;                                              \
+      } catch (const exception&) {                              \
+        printf("ok\n");                                         \
+      } catch (...) {                                           \
+        fprintf(stderr, "%s\n", "Unexpected exception thrown"); \
+        exit(EXIT_FAILURE);                                     \
+      }                                                         \
+    } while (0)
 
-#define TEST(a, b)                                      \
+vector<void (*)()> g_testlist;  // the tests to run
+#  define TEST(a, b)                                   \
     struct Test_##a##_##b {                            \
       Test_##a##_##b() { g_testlist.push_back(&Run); } \
-    static void Run() { FlagSaver fs; RunTest(); }      \
+      static void Run() {                              \
+        FlagSaver fs;                                  \
+        RunTest();                                     \
+      }                                                \
       static void RunTest();                           \
     };                                                 \
     static Test_##a##_##b g_test_##a##_##b;            \
     void Test_##a##_##b::RunTest()
 
-
 static inline int RUN_ALL_TESTS() {
   vector<void (*)()>::const_iterator it;
   for (it = g_testlist.begin(); it != g_testlist.end(); ++it) {
@@ -211,11 +231,11 @@ static inline int RUN_ALL_TESTS() {
   return 0;
 }
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace google
 
 #endif  // ! HAVE_LIB_GTEST
 
-_START_GOOGLE_NAMESPACE_
+namespace google {
 
 static bool g_called_abort;
 static jmp_buf g_jmp_buf;
@@ -226,9 +246,9 @@ static inline void CalledAbort() {
 
 #ifdef GLOG_OS_WINDOWS
 // TODO(hamaji): Death test somehow doesn't work in Windows.
-#define ASSERT_DEATH(fn, msg)
+#  define ASSERT_DEATH(fn, msg)
 #else
-#define ASSERT_DEATH(fn, msg)                                           \
+#  define ASSERT_DEATH(fn, msg)                                      \
     do {                                                             \
       g_called_abort = false;                                        \
       /* in logging.cc */                                            \
@@ -245,14 +265,14 @@ static inline void CalledAbort() {
 #endif
 
 #ifdef NDEBUG
-#define ASSERT_DEBUG_DEATH(fn, msg)
+#  define ASSERT_DEBUG_DEATH(fn, msg)
 #else
-#define ASSERT_DEBUG_DEATH(fn, msg) ASSERT_DEATH(fn, msg)
+#  define ASSERT_DEBUG_DEATH(fn, msg) ASSERT_DEATH(fn, msg)
 #endif  // NDEBUG
 
 // Benchmark tools.
 
-#define BENCHMARK(n) static BenchmarkRegisterer __benchmark_ ## n (#n, &n);
+#define BENCHMARK(n) static BenchmarkRegisterer __benchmark_##n(#n, &n);
 
 map<string, void (*)(int)> g_benchlist;  // the benchmarks to run
 
@@ -270,21 +290,19 @@ static inline void RunSpecifiedBenchmarks() {
 
   int iter_cnt = FLAGS_benchmark_iters;
   puts("Benchmark\tTime(ns)\tIterations");
-  for (map<string, void (*)(int)>::const_iterator iter = g_benchlist.begin();
-       iter != g_benchlist.end();
-       ++iter) {
+  for (auto& iter : g_benchlist) {
     clock_t start = clock();
-    iter->second(iter_cnt);
+    iter.second(iter_cnt);
     double elapsed_ns = (static_cast<double>(clock()) - start) /
                         CLOCKS_PER_SEC * 1000 * 1000 * 1000;
 #if defined(__GNUC__) && !defined(__clang__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wformat="
+#  pragma GCC diagnostic push
+#  pragma GCC diagnostic ignored "-Wformat="
 #endif
-    printf("%s\t%8.2lf\t%10d\n",
-           iter->first.c_str(), elapsed_ns / iter_cnt, iter_cnt);
+    printf("%s\t%8.2lf\t%10d\n", iter.first.c_str(), elapsed_ns / iter_cnt,
+           iter_cnt);
 #if defined(__GNUC__) && !defined(__clang__)
-#pragma GCC diagnostic pop
+#  pragma GCC diagnostic pop
 #endif
   }
   puts("");
@@ -296,78 +314,70 @@ static inline void RunSpecifiedBenchmarks() {
 
 class CapturedStream {
  public:
-  CapturedStream(int fd, const string & filename) :
-    fd_(fd),
-    uncaptured_fd_(-1),
-    filename_(filename) {
+  CapturedStream(int fd, string filename)
+      : fd_(fd), filename_(std::move(filename)) {
     Capture();
   }
 
-  ~CapturedStream() {
-    if (uncaptured_fd_ != -1) {
-      CHECK(close(uncaptured_fd_) != -1);
-    }
-  }
-
   // Start redirecting output to a file
   void Capture() {
     // Keep original stream for later
-    CHECK(uncaptured_fd_ == -1) << ", Stream " << fd_ << " already captured!";
-    uncaptured_fd_ = dup(fd_);
-    CHECK(uncaptured_fd_ != -1);
+    CHECK(!uncaptured_fd_) << ", Stream " << fd_ << " already captured!";
+    uncaptured_fd_.reset(dup(fd_));
+    CHECK(uncaptured_fd_);
 
     // Open file to save stream to
-    int cap_fd = open(filename_.c_str(),
-                      O_CREAT | O_TRUNC | O_WRONLY,
-                      S_IRUSR | S_IWUSR);
-    CHECK(cap_fd != -1);
+    FileDescriptor cap_fd{open(filename_.c_str(), O_CREAT | O_TRUNC | O_WRONLY,
+                               S_IRUSR | S_IWUSR)};
+    CHECK(cap_fd);
 
     // Send stdout/stderr to this file
-    fflush(NULL);
-    CHECK(dup2(cap_fd, fd_) != -1);
-    CHECK(close(cap_fd) != -1);
+    fflush(nullptr);
+    CHECK(dup2(cap_fd.get(), fd_) != -1);
+    CHECK(cap_fd.close() != -1);
   }
 
   // Remove output redirection
   void StopCapture() {
     // Restore original stream
-    if (uncaptured_fd_ != -1) {
-      fflush(NULL);
-      CHECK(dup2(uncaptured_fd_, fd_) != -1);
+    if (uncaptured_fd_) {
+      fflush(nullptr);
+      CHECK(dup2(uncaptured_fd_.get(), fd_) != -1);
     }
   }
 
-  const string & filename() const { return filename_; }
+  const string& filename() const { return filename_; }
 
  private:
   int fd_;  // file descriptor being captured
-  int uncaptured_fd_;  // where the stream was originally being sent to
+  FileDescriptor
+      uncaptured_fd_;  // where the stream was originally being sent to
   string filename_;    // file where stream is being saved
 };
-static CapturedStream * s_captured_streams[STDERR_FILENO+1];
+static std::map<int, std::unique_ptr<CapturedStream>> s_captured_streams;
 // Redirect a file descriptor to a file.
-//   fd       - Should be STDOUT_FILENO or STDERR_FILENO
+//   fd       - Should be stdout or stderr
 //   filename - File where output should be stored
-static inline void CaptureTestOutput(int fd, const string & filename) {
-  CHECK((fd == STDOUT_FILENO) || (fd == STDERR_FILENO));
-  CHECK(s_captured_streams[fd] == NULL);
-  s_captured_streams[fd] = new CapturedStream(fd, filename);
+static inline void CaptureTestOutput(int fd, const string& filename) {
+  CHECK((fd == fileno(stdout)) || (fd == fileno(stderr)));
+  CHECK(s_captured_streams.find(fd) == s_captured_streams.end());
+  s_captured_streams[fd] = std::make_unique<CapturedStream>(fd, filename);
 }
 static inline void CaptureTestStdout() {
-  CaptureTestOutput(STDOUT_FILENO, FLAGS_test_tmpdir + "/captured.out");
+  CaptureTestOutput(fileno(stdout), FLAGS_test_tmpdir + "/captured.out");
 }
 static inline void CaptureTestStderr() {
-  CaptureTestOutput(STDERR_FILENO, FLAGS_test_tmpdir + "/captured.err");
+  CaptureTestOutput(fileno(stderr), FLAGS_test_tmpdir + "/captured.err");
 }
 // Return the size (in bytes) of a file
-static inline size_t GetFileSize(FILE * file) {
+static inline size_t GetFileSize(FILE* file) {
   fseek(file, 0, SEEK_END);
   return static_cast<size_t>(ftell(file));
 }
 // Read the entire content of a file as a string
-static inline string ReadEntireFile(FILE * file) {
+static inline string ReadEntireFile(FILE* file) {
   const size_t file_size = GetFileSize(file);
-  char * const buffer = new char[file_size];
+  std::vector<char> content(file_size);
 
   size_t bytes_last_read = 0;  // # of bytes read in the last fread()
   size_t bytes_read = 0;       // # of bytes read so far
@@ -377,39 +387,33 @@ static inline string ReadEntireFile(FILE * file) {
   // Keep reading the file until we cannot read further or the
   // pre-determined file size is reached.
   do {
-    bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file);
+    bytes_last_read =
+        fread(content.data() + bytes_read, 1, file_size - bytes_read, file);
     bytes_read += bytes_last_read;
   } while (bytes_last_read > 0 && bytes_read < file_size);
 
-  const string content = string(buffer, buffer+bytes_read);
-  delete[] buffer;
-
-  return content;
+  return std::string(content.data(), bytes_read);
 }
-// Get the captured stdout (when fd is STDOUT_FILENO) or stderr (when
-// fd is STDERR_FILENO) as a string
+// Get the captured stdout  or stderr as a string
 static inline string GetCapturedTestOutput(int fd) {
-  CHECK(fd == STDOUT_FILENO || fd == STDERR_FILENO);
-  CapturedStream * const cap = s_captured_streams[fd];
-  CHECK(cap)
-    << ": did you forget CaptureTestStdout() or CaptureTestStderr()?";
+  CHECK((fd == fileno(stdout)) || (fd == fileno(stderr)));
+  std::unique_ptr<CapturedStream> cap = std::move(s_captured_streams.at(fd));
+  s_captured_streams.erase(fd);
+  CHECK(cap) << ": did you forget CaptureTestStdout() or CaptureTestStderr()?";
 
   // Make sure everything is flushed.
   cap->StopCapture();
 
   // Read the captured file.
-  FILE * const file = fopen(cap->filename().c_str(), "r");
-  const string content = ReadEntireFile(file);
-  fclose(file);
-
-  delete cap;
-  s_captured_streams[fd] = NULL;
+  std::unique_ptr<FILE> file{fopen(cap->filename().c_str(), "r")};
+  const string content = ReadEntireFile(file.get());
+  file.reset();
 
   return content;
 }
 // Get the captured stderr of a test as a string.
 static inline string GetCapturedTestStderr() {
-  return GetCapturedTestOutput(STDERR_FILENO);
+  return GetCapturedTestOutput(fileno(stderr));
 }
 
 static const std::size_t kLoggingPrefixLength = 9;
@@ -421,7 +425,7 @@ static inline bool IsLoggingPrefix(const string& s) {
   }
   if (!strchr("IWEF", s[0])) return false;
   for (size_t i = 1; i <= 8; ++i) {
-    if (!isdigit(s[i]) && s[i] != "YEARDATE"[i-1]) return false;
+    if (!isdigit(s[i]) && s[i] != "YEARDATE"[i - 1]) return false;
   }
   return true;
 }
@@ -461,15 +465,14 @@ static inline string MungeLine(const string& line) {
   }
   size_t index = thread_lineinfo.find(':');
   CHECK_NE(string::npos, index);
-  thread_lineinfo = thread_lineinfo.substr(0, index+1) + "LINE]";
+  thread_lineinfo = thread_lineinfo.substr(0, index + 1) + "LINE]";
   string rest;
   std::getline(iss, rest);
   return (before + logcode_date[0] + "YEARDATE TIME__ " + thread_lineinfo +
           MungeLine(rest));
 }
 
-static inline void StringReplace(string* str,
-                          const string& oldsub,
+static inline void StringReplace(string* str, const string& oldsub,
                                  const string& newsub) {
   size_t pos = str->find(oldsub);
   if (pos != string::npos) {
@@ -478,17 +481,18 @@ static inline void StringReplace(string* str,
 }
 
 static inline string Munge(const string& filename) {
-  FILE* fp = fopen(filename.c_str(), "rb");
-  CHECK(fp != NULL) << filename << ": couldn't open";
+  std::unique_ptr<FILE> fp{fopen(filename.c_str(), "rb")};
+  CHECK(fp != nullptr) << filename << ": couldn't open";
   char buf[4096];
   string result;
-  while (fgets(buf, 4095, fp)) {
+  while (fgets(buf, 4095, fp.get())) {
     string line = MungeLine(buf);
     const size_t str_size = 256;
     char null_str[str_size];
     char ptr_str[str_size];
-    snprintf(null_str, str_size, "%p", static_cast<void*>(NULL));
-    snprintf(ptr_str, str_size, "%p", reinterpret_cast<void*>(PTR_TEST_VALUE));
+    std::snprintf(null_str, str_size, "%p", static_cast<void*>(nullptr));
+    std::snprintf(ptr_str, str_size, "%p",
+                  reinterpret_cast<void*>(PTR_TEST_VALUE));
 
     StringReplace(&line, "__NULLP__", null_str);
     StringReplace(&line, "__PTRTEST__", ptr_str);
@@ -500,19 +504,19 @@ static inline string Munge(const string& filename) {
     StringReplace(&line, "__ENOEXEC__", StrError(ENOEXEC));
     result += line + "\n";
   }
-  fclose(fp);
   return result;
 }
 
 static inline void WriteToFile(const string& body, const string& file) {
-  FILE* fp = fopen(file.c_str(), "wb");
-  fwrite(body.data(), 1, body.size(), fp);
-  fclose(fp);
+  std::unique_ptr<FILE> fp{fopen(file.c_str(), "wb")};
+  fwrite(body.data(), 1, body.size(), fp.get());
 }
 
 static inline bool MungeAndDiffTest(const string& golden_filename,
                                     CapturedStream* cap) {
-  if (cap == s_captured_streams[STDOUT_FILENO]) {
+  auto pos = s_captured_streams.find(fileno(stdout));
+
+  if (pos != s_captured_streams.end() && cap == pos->second.get()) {
     CHECK(cap) << ": did you forget CaptureTestStdout()?";
   } else {
     CHECK(cap) << ": did you forget CaptureTestStderr()?";
@@ -547,126 +551,68 @@ static inline bool MungeAndDiffTest(const string& golden_filename,
 }
 
 static inline bool MungeAndDiffTestStderr(const string& golden_filename) {
-  return MungeAndDiffTest(golden_filename, s_captured_streams[STDERR_FILENO]);
+  return MungeAndDiffTest(golden_filename,
+                          s_captured_streams.at(fileno(stderr)).get());
 }
 
 static inline bool MungeAndDiffTestStdout(const string& golden_filename) {
-  return MungeAndDiffTest(golden_filename, s_captured_streams[STDOUT_FILENO]);
+  return MungeAndDiffTest(golden_filename,
+                          s_captured_streams.at(fileno(stdout)).get());
 }
 
 // Save flags used from logging_unittest.cc.
-#ifndef HAVE_LIB_GFLAGS
+#ifndef GLOG_USE_GFLAGS
 struct FlagSaver {
   FlagSaver()
       : v_(FLAGS_v),
         stderrthreshold_(FLAGS_stderrthreshold),
         logtostderr_(FLAGS_logtostderr),
-        alsologtostderr_(FLAGS_alsologtostderr) {}
+        alsologtostderr_(FLAGS_alsologtostderr),
+        logmailer_(FLAGS_logmailer) {}
   ~FlagSaver() {
     FLAGS_v = v_;
     FLAGS_stderrthreshold = stderrthreshold_;
     FLAGS_logtostderr = logtostderr_;
     FLAGS_alsologtostderr = alsologtostderr_;
+    FLAGS_logmailer = logmailer_;
   }
   int v_;
   int stderrthreshold_;
   bool logtostderr_;
   bool alsologtostderr_;
+  std::string logmailer_;
 };
 #endif
 
-class Thread {
- public:
-  virtual ~Thread() {}
-
-  void SetJoinable(bool) {}
-#if defined(GLOG_OS_WINDOWS) && !defined(GLOG_OS_CYGWIN)
-  void Start() {
-    handle_ = CreateThread(NULL,
-                           0,
-                           &Thread::InvokeThreadW,
-                           this,
-                           0,
-                           &th_);
-    CHECK(handle_) << "CreateThread";
-  }
-  void Join() {
-    WaitForSingleObject(handle_, INFINITE);
-  }
-#elif defined(HAVE_PTHREAD)
-  void Start() {
-    pthread_create(&th_, NULL, &Thread::InvokeThread, this);
-  }
-  void Join() {
-    pthread_join(th_, NULL);
-  }
-#else
-# error No thread implementation.
-#endif
-
- protected:
-  virtual void Run() = 0;
-
- private:
-  static void* InvokeThread(void* self) {
-    (static_cast<Thread*>(self))->Run();
-    return NULL;
-  }
-
-#if defined(GLOG_OS_WINDOWS) && !defined(GLOG_OS_CYGWIN)
-  static DWORD __stdcall InvokeThreadW(LPVOID self) {
-    InvokeThread(self);
-    return 0;
-  }
-  HANDLE handle_;
-  DWORD th_;
-#else
-  pthread_t th_;
-#endif
-};
-
-static inline void SleepForMilliseconds(unsigned t) {
-#ifndef GLOG_OS_WINDOWS
-# if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199309L
-  const struct timespec req = {0, t * 1000 * 1000};
-  nanosleep(&req, NULL);
-# else
-  usleep(t * 1000);
-# endif
-#else
-  Sleep(t);
-#endif
-}
-
 // Add hook for operator new to ensure there are no memory allocation.
 
-void (*g_new_hook)() = NULL;
+void (*g_new_hook)() = nullptr;
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace google
 
-void* operator new(size_t size) GOOGLE_GLOG_THROW_BAD_ALLOC {
-  if (GOOGLE_NAMESPACE::g_new_hook) {
-    GOOGLE_NAMESPACE::g_new_hook();
+void* operator new(size_t size, const std::nothrow_t&) noexcept {
+  if (google::g_new_hook) {
+    google::g_new_hook();
   }
   return malloc(size);
 }
 
+void* operator new(size_t size) GOOGLE_GLOG_THROW_BAD_ALLOC {
+  void* p = ::operator new(size, std::nothrow);
+  if (p == nullptr) {
+    throw std::bad_alloc{};
+  }
+  return p;
+}
+
 void* operator new[](size_t size) GOOGLE_GLOG_THROW_BAD_ALLOC {
   return ::operator new(size);
 }
 
-void operator delete(void* p) throw() {
-  free(p);
-}
+void operator delete(void* p) noexcept { free(p); }
 
-void operator delete(void* p, size_t) throw() {
-  ::operator delete(p);
-}
+void operator delete(void* p, size_t) noexcept { ::operator delete(p); }
 
-void operator delete[](void* p) throw() {
-  ::operator delete(p);
-}
+void operator delete[](void* p) noexcept { ::operator delete(p); }
 
-void operator delete[](void* p, size_t) throw() {
-  ::operator delete(p);
-}
+void operator delete[](void* p, size_t) noexcept { ::operator delete(p); }

src/includes_unittest/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required (VERSION 3.16)
+project (glog_includes LANGUAGES CXX)
+
+find_package (glog REQUIRED NO_MODULE)
+
+add_executable (glog_includes_logging glog_includes_logging.cc)
+target_link_libraries (glog_includes_logging PRIVATE glog::glog)
+
+add_executable (glog_includes_vlog_is_on glog_includes_vlog_is_on.cc)
+target_link_libraries (glog_includes_vlog_is_on PRIVATE glog::glog)
+
+add_executable (glog_includes_raw_logging glog_includes_raw_logging.cc)
+target_link_libraries (glog_includes_raw_logging PRIVATE glog::glog)
+
+add_executable (glog_includes_stl_logging glog_includes_stl_logging.cc)
+target_link_libraries (glog_includes_stl_logging PRIVATE glog::glog)

src/includes_unittest/glog_includes_logging.cc

@@ -0,0 +1,39 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sergiu Deitsch
+
+#include <glog/logging.h>
+
+int main() {
+  LOG(INFO) << "info";
+  LOG(WARNING) << "warning";
+  LOG(ERROR) << "error";
+  LOG(FATAL) << "fatal";
+}

src/includes_unittest/glog_includes_raw_logging.cc

@@ -0,0 +1,39 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sergiu Deitsch
+
+#include <glog/raw_logging.h>
+
+int main() {
+  RAW_LOG(INFO, "info");
+  RAW_LOG(WARNING, "warning");
+  RAW_LOG(ERROR, "error");
+  RAW_LOG(FATAL, "fatal");
+}

src/includes_unittest/glog_includes_stl_logging.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2007, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -27,9 +27,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-// Author: Sergey Ioffe
+// Author: Sergiu Deitsch
 
-#define GOOGLE_STRIP_LOG 2
+#include <glog/stl_logging.h>
 
-// Include the actual test.
-#include "logging_striptest_main.cc"
+int main() {}

src/includes_unittest/glog_includes_vlog_is_on.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2007, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -27,9 +27,8 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-// Author: Sergey Ioffe
+// Author: Sergiu Deitsch
 
-#define GOOGLE_STRIP_LOG 10
+#include <glog/vlog_is_on.h>
 
-// Include the actual test.
-#include "logging_striptest_main.cc"
+int main() { VLOG_IS_ON(0); }

src/log_severity_unittest/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required (VERSION 3.16)
+project (glog_log_severity LANGUAGES CXX)
+
+find_package (glog REQUIRED NO_MODULE)
+
+add_executable (glog_log_severity_constants glog_log_severity_constants.cc)
+target_link_libraries (glog_log_severity_constants PRIVATE glog::glog)
+
+add_executable (glog_log_severity_conversion glog_log_severity_conversion.cc)
+target_link_libraries (glog_log_severity_conversion PRIVATE glog::glog)

src/log_severity_unittest/glog_log_severity_constants.cc

@@ -0,0 +1,40 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sergiu Deitsch
+
+#include <glog/logging.h>
+
+int main() {
+  // Must not compile
+  LOG(0) << "type unsafe info";
+  LOG(1) << "type unsafe info";
+  LOG(2) << "type unsafe info";
+  LOG(3) << "type unsafe info";
+}

src/log_severity_unittest/glog_log_severity_conversion.cc

@@ -0,0 +1,42 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Author: Sergiu Deitsch
+
+#include <glog/logging.h>
+
+int main() {
+  // Must not compile
+  google::LogMessage{__FILE__, __LINE__, -1};
+  // Cast to int to avoid implicit conversoin to nullptr
+  google::LogMessage{__FILE__, __LINE__, static_cast<int>(0)};
+  google::LogMessage{__FILE__, __LINE__, 1};
+  google::LogMessage{__FILE__, __LINE__, 2};
+  google::LogMessage{__FILE__, __LINE__, 3};
+}

src/logging_custom_prefix_unittest.err

@@ -1,308 +0,0 @@
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=2 logtostderr=0 alsologtostderr=0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-WARNING: Logging before InitGoogleLogging() is written to STDERR
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=0 logtostderr=0 alsologtostderr=0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] foo bar 10 3.4
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Plog every 2, iteration 1: __SUCCESS__ [0]
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log every 3, iteration 1
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log every 4, iteration 1
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 5, iteration 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 1
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if less than 3 every 2, iteration 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 2
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Plog every 2, iteration 3: __ENOENT__ [2]
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 3
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if less than 3 every 2, iteration 3
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log every 3, iteration 4
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 4
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Plog every 2, iteration 5: __EINTR__ [4]
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log every 4, iteration 5
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 5
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 5, iteration 6
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 6
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Plog every 2, iteration 7: __ENXIO__ [6]
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log every 3, iteration 7
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 7
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 8
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Plog every 2, iteration 9: __ENOEXEC__ [8]
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log every 4, iteration 9
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 9
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log every 3, iteration 10
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Log if every 1, iteration 10
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if this
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] array
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] const array
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] foo 1000       1000 3e8
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] foo          1
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] inner
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] outer
-no prefix
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: foo bar 10 3.400000
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: array
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: const array
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: ptr __PTRTEST__
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: ptr __NULLP__
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: foo 1000 0000001000 3e8
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: foo 1000
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: foo 1000
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: RAW_LOG ERROR: The Message was too long!
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: RAW_LOG ERROR: The Message was too long!
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0 on
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 1 on
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 2 on
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=0 logtostderr=0 alsologtostderr=0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=1 stderrthreshold=0 logtostderr=0 alsologtostderr=0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=-1 stderrthreshold=0 logtostderr=0 alsologtostderr=0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=1 logtostderr=0 alsologtostderr=0
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=2 logtostderr=0 alsologtostderr=0
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=3 logtostderr=0 alsologtostderr=0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=3 logtostderr=1 alsologtostderr=0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=0 stderrthreshold=3 logtostderr=0 alsologtostderr=1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=1 stderrthreshold=1 logtostderr=0 alsologtostderr=0
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Test: v=1 stderrthreshold=3 logtostderr=0 alsologtostderr=1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: vlog 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if -1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if info every 1 expr
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] log_if error every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] vlog_if 0 every 1 expr
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_STRING: reported info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_STRING: reported warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_STRING: reported error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Captured by LOG_STRING:  LOG_STRING: collected info
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Captured by LOG_STRING:  LOG_STRING: collected warning
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Captured by LOG_STRING:  LOG_STRING: collected error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: collected info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: collected warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: collected error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: reported info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: reported warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: reported error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Captured by LOG_TO_SINK:
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: collected info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: collected warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK: collected error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK_BUT_NOT_TO_LOGFILE: collected info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK_BUT_NOT_TO_LOGFILE: collected warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_SINK_BUT_NOT_TO_LOGFILE: collected error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_STRING: collected info
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Captured by LOG_TO_STRING:  LOG_TO_STRING: collected info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_STRING: collected warning
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Captured by LOG_TO_STRING:  LOG_TO_STRING: collected warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_STRING: collected error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Captured by LOG_TO_STRING:  LOG_TO_STRING: collected error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_STRING: reported info
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_STRING: reported warning
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] LOG_TO_STRING: reported error
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Buffering
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Buffered
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Waiting
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Sink got a messages
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Waited
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Sink is sending out a message: IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Have 0 left
-EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 2
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Buffering
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Buffered
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Waiting
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Sink got a messages
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Waited
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Sink is sending out a message: EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 2
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Have 0 left
-WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 3
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Buffering
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Buffered
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Waiting
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Sink got a messages
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] RAW: Waited
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Sink is sending out a message: WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 3
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Have 0 left
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Sink capture: IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 1
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Sink capture: EYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 2
-IYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Sink capture: WYEARDATE TIME__ THREADID logging_custom_prefix_unittest.cc:LINE] Message 3

src/logging_striplog_test.sh

@@ -1,6 +1,6 @@
 #! /bin/sh
 #
-# Copyright (c) 2007, Google Inc.
+# Copyright (c) 2023, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,8 +32,8 @@
 # Author: Sergey Ioffe
 
 get_strings () {
-    if test -e ".libs/$1"; then
-        binary=".libs/$1"
+    if test -e "$1"; then
+        binary="$1"
     elif test -e "$1.exe"; then
         binary="$1.exe"
     else
@@ -60,20 +60,21 @@ die () {
 # Check that the string literals are appropriately stripped. This will
 # not be the case in debug mode.
 
-mode=`GLOG_check_mode=1 ./logging_striptest0 2> /dev/null`
+mode=`GLOG_check_mode=1 ./striplog0_unittest 2> /dev/null`
+echo $mode
 if [ "$mode" = "opt" ];
 then
     echo "In OPT mode"
-    check_eq "`get_strings logging_striptest0`" "COND ERROR FATAL INFO USAGE WARNING "
-    check_eq "`get_strings logging_striptest2`" "COND ERROR FATAL USAGE "
-    check_eq "`get_strings logging_striptest10`" "" 
+    check_eq "`get_strings striplog0_unittest`" "COND ERROR FATAL INFO WARNING "
+    check_eq "`get_strings striplog2_unittest`" "COND ERROR FATAL "
+    check_eq "`get_strings striplog10_unittest`" ""
 else
     echo "In DBG mode; not checking strings"
 fi
 
 # Check that LOG(FATAL) aborts even for large STRIP_LOG
 
-./logging_striptest2 2>/dev/null && die "Did not abort for STRIP_LOG=2"
-./logging_striptest10 2>/dev/null && die "Did not abort for STRIP_LOG=10"
+./striplog2_unittest 2>/dev/null && die "Did not abort for STRIP_LOG=2"
+./striplog10_unittest 2>/dev/null && die "Did not abort for STRIP_LOG=10"
 
 echo "PASS"

src/mock-log.h

@@ -35,16 +35,15 @@
 #ifndef GLOG_SRC_MOCK_LOG_H_
 #define GLOG_SRC_MOCK_LOG_H_
 
-// For GOOGLE_NAMESPACE. This must go first so we get _XOPEN_SOURCE.
-#include "utilities.h"
+// For google. This must go first so we get _XOPEN_SOURCE.
+#include <gmock/gmock.h>
 
 #include <string>
 
-#include <gmock/gmock.h>
+#include "glog/logging.h"
+#include "utilities.h"
 
-#include <glog/logging.h>
-
-_START_GOOGLE_NAMESPACE_
+namespace google {
 namespace glog_testing {
 
 // A ScopedMockLog object intercepts LOG() messages issued during its
@@ -65,14 +64,14 @@ namespace glog_testing {
 //
 //     Foo();  // Exercises the code under test.
 //   }
-class ScopedMockLog : public GOOGLE_NAMESPACE::LogSink {
+class ScopedMockLog : public google::LogSink {
  public:
   // When a ScopedMockLog object is constructed, it starts to
   // intercept logs.
   ScopedMockLog() { AddLogSink(this); }
 
   // When the object is destructed, it stops intercepting logs.
-  ~ScopedMockLog() { RemoveLogSink(this); }
+  ~ScopedMockLog() override { RemoveLogSink(this); }
 
   // Implements the mock method:
   //
@@ -87,8 +86,8 @@ class ScopedMockLog : public GOOGLE_NAMESPACE::LogSink {
   // for messages from different threads. In fact, if the same or multiple
   // expectations are matched on two threads concurrently, their actions will
   // be executed concurrently as well and may interleave.
-  MOCK_METHOD3(Log, void(GOOGLE_NAMESPACE::LogSeverity severity,
-                         const std::string& file_path,
+  MOCK_METHOD3(Log,
+               void(google::LogSeverity severity, const std::string& file_path,
                     const std::string& message));
 
  private:
@@ -113,11 +112,10 @@ class ScopedMockLog : public GOOGLE_NAMESPACE::LogSink {
   // be running simultaneously, we ensure thread-safety of the exchange between
   // send() and WaitTillSent(), and that for each message, LOG(), send(),
   // WaitTillSent() and Log() are executed in the same thread.
-  virtual void send(GOOGLE_NAMESPACE::LogSeverity severity,
-                    const char* full_filename,
+  void send(google::LogSeverity severity, const char* full_filename,
             const char* /*base_filename*/, int /*line*/,
-                    const LogMessageTime & /*logmsgtime*/,
-                    const char* message, size_t message_len) {
+            const LogMessageTime& /*logmsgtime*/, const char* message,
+            size_t message_len) override {
     // We are only interested in the log severity, full file name, and
     // log message.
     message_info_.severity = severity;
@@ -132,7 +130,7 @@ class ScopedMockLog : public GOOGLE_NAMESPACE::LogSink {
   //
   // LOG(), send(), WaitTillSent() and Log() will occur in the same thread for
   // a given log message.
-  virtual void WaitTillSent() {
+  void WaitTillSent() override {
     // First, and very importantly, we save a copy of the message being
     // processed before calling Log(), since Log() may indirectly call send()
     // and WaitTillSent() in the same thread again.
@@ -143,7 +141,7 @@ class ScopedMockLog : public GOOGLE_NAMESPACE::LogSink {
   // All relevant information about a logged message that needs to be passed
   // from send() to WaitTillSent().
   struct MessageInfo {
-    GOOGLE_NAMESPACE::LogSeverity severity;
+    google::LogSeverity severity;
     std::string file_path;
     std::string message;
   };
@@ -151,6 +149,6 @@ class ScopedMockLog : public GOOGLE_NAMESPACE::LogSink {
 };
 
 }  // namespace glog_testing
-_END_GOOGLE_NAMESPACE_
+}  // namespace google
 
 #endif  // GLOG_SRC_MOCK_LOG_H_

src/mock-log_unittest.cc

@@ -33,17 +33,17 @@
 
 #include "mock-log.h"
 
-#include <string>
-
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
+#include <string>
+
 namespace {
 
-using GOOGLE_NAMESPACE::GLOG_ERROR;
-using GOOGLE_NAMESPACE::GLOG_INFO;
-using GOOGLE_NAMESPACE::GLOG_WARNING;
-using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
+using google::GLOG_ERROR;
+using google::GLOG_INFO;
+using google::GLOG_WARNING;
+using google::glog_testing::ScopedMockLog;
 using std::string;
 using testing::_;
 using testing::EndsWith;
@@ -57,8 +57,7 @@ TEST(ScopedMockLogTest, InterceptsLog) {
   InSequence s;
   EXPECT_CALL(log,
               Log(GLOG_WARNING, EndsWith("mock-log_unittest.cc"), "Fishy."));
-  EXPECT_CALL(log, Log(GLOG_INFO, _, "Working..."))
-      .Times(2);
+  EXPECT_CALL(log, Log(GLOG_INFO, _, "Working...")).Times(2);
   EXPECT_CALL(log, Log(GLOG_ERROR, _, "Bad!!"));
 
   LOG(WARNING) << "Fishy.";
@@ -67,13 +66,9 @@ TEST(ScopedMockLogTest, InterceptsLog) {
   LOG(ERROR) << "Bad!!";
 }
 
-void LogBranch() {
-  LOG(INFO) << "Logging a branch...";
-}
+void LogBranch() { LOG(INFO) << "Logging a branch..."; }
 
-void LogTree() {
-  LOG(INFO) << "Logging the whole tree...";
-}
+void LogTree() { LOG(INFO) << "Logging the whole tree..."; }
 
 void LogForest() {
   LOG(INFO) << "Logging the entire forest.";
@@ -99,8 +94,8 @@ TEST(ScopedMockLogTest, LogDuringIntercept) {
 
 }  // namespace
 
-int main(int argc, char **argv) {
-  GOOGLE_NAMESPACE::InitGoogleLogging(argv[0]);
+int main(int argc, char** argv) {
+  google::InitGoogleLogging(argv[0]);
   testing::InitGoogleTest(&argc, argv);
   testing::InitGoogleMock(&argc, argv);
 

src/package_config_unittest/working_config/glog_package_config.cc

@@ -1,6 +1,3 @@
-#include <glog/logging.h>
+#include "glog/logging.h"
 
-int main(int /*argc*/, char** argv)
-{
-    google::InitGoogleLogging(argv[0]);
-}
+int main(int /*argc*/, char** argv) { google::InitGoogleLogging(argv[0]); }

src/raw_logging.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2006, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -31,57 +31,60 @@
 //
 // logging_unittest.cc covers the functionality herein
 
-#include "utilities.h"
-
-#include <stdarg.h>
+#include <cstdarg>
 #include <cstdio>
-#include <cerrno>
+#include <cstring>
+#include <iomanip>
+#include <mutex>
+#include <ostream>
+#include <streambuf>
+#include <thread>
+
+#include "config.h"
+
 #ifdef HAVE_UNISTD_H
 #  include <unistd.h>  // for close() and write()
 #endif
-#include <fcntl.h>                 // for open()
-#include <ctime>
-#include "config.h"
-#include <glog/logging.h>          // To pick up flag settings etc.
-#include <glog/raw_logging.h>
-#include "base/commandlineflags.h"
-
-#ifdef HAVE_STACKTRACE
-# include "stacktrace.h"
-#endif
-
 #if defined(HAVE_SYSCALL_H)
-#include <syscall.h>                 // for syscall()
+#  include <syscall.h>  // for syscall()
 #elif defined(HAVE_SYS_SYSCALL_H)
-#include <sys/syscall.h>                 // for syscall()
+#  include <sys/syscall.h>  // for syscall()
 #endif
 #ifdef HAVE_UNISTD_H
 #  include <unistd.h>
 #endif
+#include <fcntl.h>  // for open()
 
-#if (defined(HAVE_SYSCALL_H) || defined(HAVE_SYS_SYSCALL_H)) && (!(defined(GLOG_OS_MACOSX)))
+#include "glog/logging.h"
+#include "glog/raw_logging.h"
+#include "stacktrace.h"
+#include "utilities.h"
+
+#if (defined(HAVE_SYSCALL_H) || defined(HAVE_SYS_SYSCALL_H)) &&    \
+    (!(defined(GLOG_OS_MACOSX)) && !(defined(GLOG_OS_OPENBSD))) && \
+    !defined(GLOG_OS_EMSCRIPTEN)
 #  define safe_write(fd, s, len) syscall(SYS_write, fd, s, len)
 #else
-  // Not so safe, but what can you do?
+// Not so safe, but what can you do?
 #  define safe_write(fd, s, len) write(fd, s, len)
 #endif
 
-_START_GOOGLE_NAMESPACE_
+namespace google {
 
 #if defined(__GNUC__)
-#define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck) \
+#  define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck) \
     __attribute__((format(archetype, stringIndex, firstToCheck)))
-#define GLOG_ATTRIBUTE_FORMAT_ARG(stringIndex) \
+#  define GLOG_ATTRIBUTE_FORMAT_ARG(stringIndex) \
     __attribute__((format_arg(stringIndex)))
 #else
-#define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck)
-#define GLOG_ATTRIBUTE_FORMAT_ARG(stringIndex)
+#  define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck)
+#  define GLOG_ATTRIBUTE_FORMAT_ARG(stringIndex)
 #endif
 
-// CAVEAT: vsnprintf called from *DoRawLog below has some (exotic) code paths
-// that invoke malloc() and getenv() that might acquire some locks.
-// If this becomes a problem we should reimplement a subset of vsnprintf
-// that does not need locks and malloc.
+// CAVEAT: std::vsnprintf called from *DoRawLog below has some (exotic) code
+// paths that invoke malloc() and getenv() that might acquire some locks. If
+// this becomes a problem we should reimplement a subset of std::vsnprintf that
+// does not need locks and malloc.
 
 // Helper for RawLog__ below.
 // *DoRawLog writes to *buf of *size and move them past the written portion.
@@ -90,7 +93,7 @@ GLOG_ATTRIBUTE_FORMAT(printf, 3, 4)
 static bool DoRawLog(char** buf, size_t* size, const char* format, ...) {
   va_list ap;
   va_start(ap, format);
-  int n = vsnprintf(*buf, *size, format, ap);
+  int n = std::vsnprintf(*buf, *size, format, ap);
   va_end(ap);
   if (n < 0 || static_cast<size_t>(n) > *size) return false;
   *size -= static_cast<size_t>(n);
@@ -99,15 +102,15 @@ static bool DoRawLog(char** buf, size_t* size, const char* format, ...) {
 }
 
 // Helper for RawLog__ below.
-inline static bool VADoRawLog(char** buf, size_t* size,
-                              const char* format, va_list ap) {
+inline static bool VADoRawLog(char** buf, size_t* size, const char* format,
+                              va_list ap) {
 #if defined(__GNUC__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+#  pragma GCC diagnostic push
+#  pragma GCC diagnostic ignored "-Wformat-nonliteral"
 #endif
-  int n = vsnprintf(*buf, *size, format, ap);
+  int n = std::vsnprintf(*buf, *size, format, ap);
 #if defined(__GNUC__)
-#pragma GCC diagnostic pop
+#  pragma GCC diagnostic pop
 #endif
   if (n < 0 || static_cast<size_t>(n) > *size) return false;
   *size -= static_cast<size_t>(n);
@@ -116,9 +119,29 @@ inline static bool VADoRawLog(char** buf, size_t* size,
 }
 
 static const int kLogBufSize = 3000;
-static bool crashed = false;
-static CrashReason crash_reason;
-static char crash_buf[kLogBufSize + 1] = { 0 };  // Will end in '\0'
+static std::once_flag crashed;
+static logging::internal::CrashReason crash_reason;
+static char crash_buf[kLogBufSize + 1] = {0};  // Will end in '\0'
+
+namespace {
+template <std::size_t N>
+class StaticStringBuf : public std::streambuf {
+ public:
+  StaticStringBuf() {
+    setp(std::begin(data_), std::end(data_));
+    setg(std::begin(data_), std::begin(data_), std::end(data_));
+  }
+  const char* data() noexcept {
+    if (pptr() != pbase() && pptr() != epptr() && *(pptr() - 1) != '\0') {
+      sputc('\0');
+    }
+    return data_;
+  }
+
+ private:
+  char data_[N];
+};
+}  // namespace
 
 GLOG_ATTRIBUTE_FORMAT(printf, 4, 5)
 void RawLog__(LogSeverity severity, const char* file, int line,
@@ -128,16 +151,25 @@ void RawLog__(LogSeverity severity, const char* file, int line,
         !IsGoogleLoggingInitialized())) {
     return;  // this stderr log message is suppressed
   }
+
+  // We do not have any any option other that string streams to obtain the
+  // thread identifier as the corresponding value is not convertible to an
+  // integer. Use a statically allocated buffer to avoid dynamic memory
+  // allocations.
+  StaticStringBuf<kLogBufSize> sbuf;
+  std::ostream oss(&sbuf);
+
+  oss << std::setw(5) << std::this_thread::get_id();
+
   // can't call localtime_r here: it can allocate
   char buffer[kLogBufSize];
   char* buf = buffer;
   size_t size = sizeof(buffer);
 
   // NOTE: this format should match the specification in base/logging.h
-  DoRawLog(&buf, &size, "%c00000000 00:00:00.000000 %5u %s:%d] RAW: ",
-           LogSeverityNames[severity][0],
-           static_cast<unsigned int>(GetTID()),
-           const_basename(const_cast<char *>(file)), line);
+  DoRawLog(&buf, &size, "%c00000000 00:00:00.000000 %s %s:%d] RAW: ",
+           GetLogSeverityName(severity)[0], sbuf.data(),
+           const_basename(const_cast<char*>(file)), line);
 
   // Record the position and size of the buffer after the prefix
   const char* msg_start = buf;
@@ -156,9 +188,9 @@ void RawLog__(LogSeverity severity, const char* file, int line,
   // avoiding FILE buffering (to avoid invoking malloc()), and bypassing
   // libc (to side-step any libc interception).
   // We write just once to avoid races with other invocations of RawLog__.
-  safe_write(STDERR_FILENO, buffer, strlen(buffer));
+  safe_write(fileno(stderr), buffer, strlen(buffer));
   if (severity == GLOG_FATAL) {
-    if (!sync_val_compare_and_swap(&crashed, false, true)) {
+    std::call_once(crashed, [file, line, msg_start, msg_size] {
       crash_reason.filename = file;
       crash_reason.line_number = line;
       memcpy(crash_buf, msg_start, msg_size);  // Don't include prefix
@@ -170,9 +202,9 @@ void RawLog__(LogSeverity severity, const char* file, int line,
       crash_reason.depth = 0;
 #endif
       SetCrashReason(&crash_reason);
-    }
+    });
     LogMessage::Fail();  // abort()
   }
 }
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace google

src/signalhandler.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2008, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -31,22 +31,36 @@
 //
 // Implementation of InstallFailureSignalHandler().
 
-#include "utilities.h"
+#include <algorithm>
+#include <csignal>
+#include <cstring>
+#include <ctime>
+#include <mutex>
+#include <sstream>
+#include <thread>
+
+#include "config.h"
+#include "glog/logging.h"
+#include "glog/platform.h"
 #include "stacktrace.h"
 #include "symbolize.h"
-#include <glog/logging.h>
+#include "utilities.h"
 
-#include <csignal>
-#include <ctime>
 #ifdef HAVE_UCONTEXT_H
 #  include <ucontext.h>
 #endif
 #ifdef HAVE_SYS_UCONTEXT_H
 #  include <sys/ucontext.h>
 #endif
-#include <algorithm>
+#ifdef HAVE_UNISTD_H
+#  include <unistd.h>
+#endif
+#if defined(HAVE_SYS_SYSCALL_H) && defined(HAVE_SYS_TYPES_H)
+#  include <sys/syscall.h>
+#  include <sys/types.h>
+#endif
 
-_START_GOOGLE_NAMESPACE_
+namespace google {
 
 namespace {
 
@@ -57,32 +71,31 @@ namespace {
 // The list should be synced with the comment in signalhandler.h.
 const struct {
   int number;
-  const char *name;
+  const char* name;
 } kFailureSignals[] = {
-  { SIGSEGV, "SIGSEGV" },
-  { SIGILL, "SIGILL" },
-  { SIGFPE, "SIGFPE" },
-  { SIGABRT, "SIGABRT" },
+    {SIGSEGV, "SIGSEGV"}, {SIGILL, "SIGILL"},
+    {SIGFPE, "SIGFPE"},   {SIGABRT, "SIGABRT"},
 #if !defined(GLOG_OS_WINDOWS)
-  { SIGBUS, "SIGBUS" },
+    {SIGBUS, "SIGBUS"},
 #endif
-  { SIGTERM, "SIGTERM" },
+    {SIGTERM, "SIGTERM"},
 };
 
 static bool kFailureSignalHandlerInstalled = false;
 
 #if !defined(GLOG_OS_WINDOWS)
-// Returns the program counter from signal context, NULL if unknown.
+// Returns the program counter from signal context, nullptr if unknown.
 void* GetPC(void* ucontext_in_void) {
-#if (defined(HAVE_UCONTEXT_H) || defined(HAVE_SYS_UCONTEXT_H)) && defined(PC_FROM_UCONTEXT)
-  if (ucontext_in_void != NULL) {
-    ucontext_t *context = reinterpret_cast<ucontext_t *>(ucontext_in_void);
+#  if (defined(HAVE_UCONTEXT_H) || defined(HAVE_SYS_UCONTEXT_H)) && \
+      defined(PC_FROM_UCONTEXT)
+  if (ucontext_in_void != nullptr) {
+    ucontext_t* context = reinterpret_cast<ucontext_t*>(ucontext_in_void);
     return (void*)context->PC_FROM_UCONTEXT;
   }
-#else
+#  else
   (void)ucontext_in_void;
-#endif
-  return NULL;
+#  endif
+  return nullptr;
 }
 #endif
 
@@ -90,14 +103,13 @@ void* GetPC(void* ucontext_in_void) {
 // as it's not async signal safe.
 class MinimalFormatter {
  public:
-  MinimalFormatter(char *buffer, size_t size)
-      : buffer_(buffer),
-        cursor_(buffer),
-        end_(buffer + size) {
-  }
+  MinimalFormatter(char* buffer, size_t size)
+      : buffer_(buffer), cursor_(buffer), end_(buffer + size) {}
 
   // Returns the number of bytes written in the buffer.
-  std::size_t num_bytes_written() const { return static_cast<std::size_t>(cursor_ - buffer_); }
+  std::size_t num_bytes_written() const {
+    return static_cast<std::size_t>(cursor_ - buffer_);
+  }
 
   // Appends string from "str" and updates the internal cursor.
   void AppendString(const char* str) {
@@ -143,14 +155,14 @@ class MinimalFormatter {
   }
 
  private:
-  char *buffer_;
-  char *cursor_;
-  const char * const end_;
+  char* buffer_;
+  char* cursor_;
+  const char* const end_;
 };
 
 // Writes the given data with the size to the standard error.
 void WriteToStderr(const char* data, size_t size) {
-  if (write(STDERR_FILENO, data, size) < 0) {
+  if (write(fileno(stderr), data, size) < 0) {
     // Ignore errors.
   }
 }
@@ -161,7 +173,7 @@ void (*g_failure_writer)(const char* data, size_t size) = WriteToStderr;
 // Dumps time information.  We don't dump human-readable time information
 // as localtime() is not guaranteed to be async signal safe.
 void DumpTimeInfo() {
-  time_t time_in_sec = time(NULL);
+  time_t time_in_sec = time(nullptr);
   char buf[256];  // Big enough for time info.
   MinimalFormatter formatter(buf, sizeof(buf));
   formatter.AppendString("*** Aborted at ");
@@ -174,15 +186,15 @@ void DumpTimeInfo() {
 }
 
 // TODO(hamaji): Use signal instead of sigaction?
-#ifdef HAVE_SIGACTION
+#if defined(HAVE_STACKTRACE) && defined(HAVE_SIGACTION)
 
 // Dumps information about the signal to STDERR.
-void DumpSignalInfo(int signal_number, siginfo_t *siginfo) {
+void DumpSignalInfo(int signal_number, siginfo_t* siginfo) {
   // Get the signal name.
-  const char* signal_name = NULL;
-  for (size_t i = 0; i < ARRAYSIZE(kFailureSignals); ++i) {
-    if (signal_number == kFailureSignals[i].number) {
-      signal_name = kFailureSignals[i].name;
+  const char* signal_name = nullptr;
+  for (auto kFailureSignal : kFailureSignals) {
+    if (signal_number == kFailureSignal.number) {
+      signal_name = kFailureSignal.name;
     }
   }
 
@@ -203,21 +215,25 @@ void DumpSignalInfo(int signal_number, siginfo_t *siginfo) {
   formatter.AppendString(")");
   formatter.AppendString(" received by PID ");
   formatter.AppendUint64(static_cast<uint64>(getpid()), 10);
-  formatter.AppendString(" (TID 0x");
-  // We assume pthread_t is an integral number or a pointer, rather
-  // than a complex struct.  In some environments, pthread_self()
-  // returns an uint64 but in some other environments pthread_self()
-  // returns a pointer.
-  pthread_t id = pthread_self();
-  formatter.AppendUint64(
-      reinterpret_cast<uint64>(reinterpret_cast<const char*>(id)), 16);
+  formatter.AppendString(" (TID ");
+
+  std::ostringstream oss;
+  oss << std::showbase << std::hex << std::this_thread::get_id();
+  formatter.AppendString(oss.str().c_str());
+#  if defined(GLOG_OS_LINUX) && defined(HAVE_SYS_SYSCALL_H) && \
+      defined(HAVE_SYS_TYPES_H)
+  pid_t tid = syscall(SYS_gettid);
+  formatter.AppendString(" LWP ");
+  formatter.AppendUint64(static_cast<uint64>(tid), 10);
+#  endif
   formatter.AppendString(") ");
+
   // Only linux has the PID of the signal sender in si_pid.
-#ifdef GLOG_OS_LINUX
+#  ifdef GLOG_OS_LINUX
   formatter.AppendString("from PID ");
   formatter.AppendUint64(static_cast<uint64>(siginfo->si_pid), 10);
   formatter.AppendString("; ");
-#endif
+#  endif
   formatter.AppendString("stack trace: ***\n");
   g_failure_writer(buf, formatter.num_bytes_written());
 }
@@ -227,14 +243,19 @@ void DumpSignalInfo(int signal_number, siginfo_t *siginfo) {
 // Dumps information about the stack frame to STDERR.
 void DumpStackFrameInfo(const char* prefix, void* pc) {
   // Get the symbol name.
-  const char *symbol = "(unknown)";
+  const char* symbol = "(unknown)";
+#if defined(HAVE_SYMBOLIZE)
   char symbolized[1024];  // Big enough for a sane symbol.
   // Symbolizes the previous address of pc because pc may be in the
   // next function.
-  if (Symbolize(reinterpret_cast<char *>(pc) - 1,
-                symbolized, sizeof(symbolized))) {
+  if (Symbolize(reinterpret_cast<char*>(pc) - 1, symbolized,
+                sizeof(symbolized))) {
     symbol = symbolized;
   }
+#else
+#  pragma message( \
+          "Symbolize functionality is not available for target platform: stack dump will contain empty frames.")
+#endif  // defined(HAVE_SYMBOLIZE)
 
   char buf[1024];  // Big enough for stack frame info.
   MinimalFormatter formatter(buf, sizeof(buf));
@@ -256,7 +277,7 @@ void InvokeDefaultSignalHandler(int signal_number) {
   memset(&sig_action, 0, sizeof(sig_action));
   sigemptyset(&sig_action.sa_mask);
   sig_action.sa_handler = SIG_DFL;
-  sigaction(signal_number, &sig_action, NULL);
+  sigaction(signal_number, &sig_action, nullptr);
   kill(getpid(), signal_number);
 #elif defined(GLOG_OS_WINDOWS)
   signal(signal_number, SIG_DFL);
@@ -264,53 +285,19 @@ void InvokeDefaultSignalHandler(int signal_number) {
 #endif
 }
 
-// This variable is used for protecting FailureSignalHandler() from
-// dumping stuff while another thread is doing it.  Our policy is to let
-// the first thread dump stuff and let other threads wait.
+// This variable is used for protecting FailureSignalHandler() from dumping
+// stuff while another thread is doing it.  Our policy is to let the first
+// thread dump stuff and let other threads do nothing.
 // See also comments in FailureSignalHandler().
-static pthread_t* g_entered_thread_id_pointer = NULL;
+static std::once_flag signaled;
 
-// Dumps signal and stack frame information, and invokes the default
-// signal handler once our job is done.
-#if defined(GLOG_OS_WINDOWS)
-void FailureSignalHandler(int signal_number)
-#else
-void FailureSignalHandler(int signal_number,
-                          siginfo_t *signal_info,
-                          void *ucontext)
+static void HandleSignal(int signal_number
+#if !defined(GLOG_OS_WINDOWS)
+                         ,
+                         siginfo_t* signal_info, void* ucontext
 #endif
-{
-  // First check if we've already entered the function.  We use an atomic
-  // compare and swap operation for platforms that support it.  For other
-  // platforms, we use a naive method that could lead to a subtle race.
+) {
 
-  // We assume pthread_self() is async signal safe, though it's not
-  // officially guaranteed.
-  pthread_t my_thread_id = pthread_self();
-  // NOTE: We could simply use pthread_t rather than pthread_t* for this,
-  // if pthread_self() is guaranteed to return non-zero value for thread
-  // ids, but there is no such guarantee.  We need to distinguish if the
-  // old value (value returned from __sync_val_compare_and_swap) is
-  // different from the original value (in this case NULL).
-  pthread_t* old_thread_id_pointer =
-      glog_internal_namespace_::sync_val_compare_and_swap(
-          &g_entered_thread_id_pointer,
-          static_cast<pthread_t*>(NULL),
-          &my_thread_id);
-  if (old_thread_id_pointer != NULL) {
-    // We've already entered the signal handler.  What should we do?
-    if (pthread_equal(my_thread_id, *g_entered_thread_id_pointer)) {
-      // It looks the current thread is reentering the signal handler.
-      // Something must be going wrong (maybe we are reentering by another
-      // type of signal?).  Kill ourself by the default signal handler.
-      InvokeDefaultSignalHandler(signal_number);
-    }
-    // Another thread is dumping stuff.  Let's wait until that thread
-    // finishes the job and kills the process.
-    while (true) {
-      sleep(1);
-    }
-  }
   // This is the first time we enter the signal handler.  We are going to
   // do some interesting stuff from here.
   // TODO(satorux): We might want to set timeout here using alarm(), but
@@ -321,22 +308,26 @@ void FailureSignalHandler(int signal_number,
 
 #if !defined(GLOG_OS_WINDOWS)
   // Get the program counter from ucontext.
-  void *pc = GetPC(ucontext);
+  void* pc = GetPC(ucontext);
   DumpStackFrameInfo("PC: ", pc);
 #endif
 
 #ifdef HAVE_STACKTRACE
   // Get the stack traces.
-  void *stack[32];
+  void* stack[32];
   // +1 to exclude this function.
   const int depth = GetStackTrace(stack, ARRAYSIZE(stack), 1);
 #  ifdef HAVE_SIGACTION
   DumpSignalInfo(signal_number, signal_info);
+#  elif !defined(GLOG_OS_WINDOWS)
+  (void)signal_info;
 #  endif
   // Dump the stack traces.
   for (int i = 0; i < depth; ++i) {
     DumpStackFrameInfo("    ", stack[i]);
   }
+#elif !defined(GLOG_OS_WINDOWS)
+  (void)signal_info;
 #endif
 
   // *** TRANSITION ***
@@ -350,15 +341,30 @@ void FailureSignalHandler(int signal_number,
 
   // Flush the logs before we do anything in case 'anything'
   // causes problems.
-  FlushLogFilesUnsafe(0);
+  FlushLogFilesUnsafe(GLOG_INFO);
 
   // Kill ourself by the default signal handler.
   InvokeDefaultSignalHandler(signal_number);
 }
 
-}  // namespace
+// Dumps signal and stack frame information, and invokes the default
+// signal handler once our job is done.
+#if defined(GLOG_OS_WINDOWS)
+void FailureSignalHandler(int signal_number)
+#else
+void FailureSignalHandler(int signal_number, siginfo_t* signal_info,
+                          void* ucontext)
+#endif
+{
+  std::call_once(signaled, &HandleSignal, signal_number
+#if !defined(GLOG_OS_WINDOWS)
+                 ,
+                 signal_info, ucontext
+#endif
+  );
+}
 
-namespace glog_internal_namespace_ {
+}  // namespace
 
 bool IsFailureSignalHandlerInstalled() {
 #ifdef HAVE_SIGACTION
@@ -366,7 +372,7 @@ bool IsFailureSignalHandlerInstalled() {
   struct sigaction sig_action;
   memset(&sig_action, 0, sizeof(sig_action));
   sigemptyset(&sig_action.sa_mask);
-  sigaction(SIGABRT, NULL, &sig_action);
+  sigaction(SIGABRT, nullptr, &sig_action);
   if (sig_action.sa_sigaction == &FailureSignalHandler) {
     return true;
   }
@@ -376,8 +382,6 @@ bool IsFailureSignalHandlerInstalled() {
   return false;
 }
 
-}  // namespace glog_internal_namespace_
-
 void InstallFailureSignalHandler() {
 #ifdef HAVE_SIGACTION
   // Build the sigaction struct.
@@ -387,14 +391,13 @@ void InstallFailureSignalHandler() {
   sig_action.sa_flags |= SA_SIGINFO;
   sig_action.sa_sigaction = &FailureSignalHandler;
 
-  for (size_t i = 0; i < ARRAYSIZE(kFailureSignals); ++i) {
-    CHECK_ERR(sigaction(kFailureSignals[i].number, &sig_action, NULL));
+  for (auto kFailureSignal : kFailureSignals) {
+    CHECK_ERR(sigaction(kFailureSignal.number, &sig_action, nullptr));
   }
   kFailureSignalHandlerInstalled = true;
 #elif defined(GLOG_OS_WINDOWS)
   for (size_t i = 0; i < ARRAYSIZE(kFailureSignals); ++i) {
-    CHECK_NE(signal(kFailureSignals[i].number, &FailureSignalHandler),
-             SIG_ERR);
+    CHECK_NE(signal(kFailureSignals[i].number, &FailureSignalHandler), SIG_ERR);
   }
   kFailureSignalHandlerInstalled = true;
 #endif  // HAVE_SIGACTION
@@ -406,4 +409,4 @@ void InstallFailureWriter(void (*writer)(const char* data, size_t size)) {
 #endif  // HAVE_SIGACTION
 }
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace google

src/signalhandler_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2008, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -32,51 +32,52 @@
 // This is a helper binary for testing signalhandler.cc.  The actual test
 // is done in signalhandler_unittest.sh.
 
-#include "utilities.h"
-
-#if defined(HAVE_PTHREAD)
-# include <pthread.h>
-#endif
 #include <csignal>
 #include <cstdio>
 #include <cstdlib>
+#include <sstream>
 #include <string>
-#include <glog/logging.h>
+#include <thread>
 
-#ifdef HAVE_LIB_GFLAGS
-#include <gflags/gflags.h>
+#include "config.h"
+#include "glog/logging.h"
+#include "stacktrace.h"
+#include "symbolize.h"
+
+#if defined(HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+#ifdef GLOG_USE_GFLAGS
+#  include <gflags/gflags.h>
 using namespace GFLAGS_NAMESPACE;
 #endif
+#if defined(_MSC_VER)
+#  include <io.h>  // write
+#endif
 
-using namespace GOOGLE_NAMESPACE;
+using namespace google;
 
-static void* DieInThread(void*) {
-  // We assume pthread_t is an integral number or a pointer, rather
-  // than a complex struct.  In some environments, pthread_self()
-  // returns an uint64 but in some other environments pthread_self()
-  // returns a pointer.
-  fprintf(
-      stderr, "0x%px is dying\n",
-      static_cast<const void*>(reinterpret_cast<const char*>(pthread_self())));
-  // Use volatile to prevent from these to be optimized away.
-  volatile int a = 0;
-  volatile int b = 1 / a;
+static void DieInThread(int* a) {
+  std::ostringstream oss;
+  oss << std::showbase << std::hex << std::this_thread::get_id();
+
+  fprintf(stderr, "%s is dying\n", oss.str().c_str());
+  int b = 1 / *a;
   fprintf(stderr, "We should have died: b=%d\n", b);
-  return NULL;
 }
 
 static void WriteToStdout(const char* data, size_t size) {
-  if (write(STDOUT_FILENO, data, size) < 0) {
+  if (write(fileno(stdout), data, size) < 0) {
     // Ignore errors.
   }
 }
 
-int main(int argc, char **argv) {
+int main(int argc, char** argv) {
 #if defined(HAVE_STACKTRACE) && defined(HAVE_SYMBOLIZE)
   InitGoogleLogging(argv[0]);
-#ifdef HAVE_LIB_GFLAGS
+#  ifdef GLOG_USE_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
-#endif
+#  endif
   InstallFailureSignalHandler();
   const std::string command = argc > 1 ? argv[1] : "none";
   if (command == "segv") {
@@ -84,20 +85,15 @@ int main(int argc, char **argv) {
     LOG(INFO) << "create the log file";
     LOG(INFO) << "a message before segv";
     // We assume 0xDEAD is not writable.
-    int *a = (int*)0xDEAD;
+    int* a = (int*)0xDEAD;
     *a = 0;
   } else if (command == "loop") {
     fprintf(stderr, "looping\n");
-    while (true);
+    while (true)
+      ;
   } else if (command == "die_in_thread") {
-#if defined(HAVE_PTHREAD)
-    pthread_t thread;
-    pthread_create(&thread, NULL, &DieInThread, NULL);
-    pthread_join(thread, NULL);
-#else
-    fprintf(stderr, "no pthread\n");
-    return 1;
-#endif
+    std::thread t{&DieInThread, nullptr};
+    t.join();
   } else if (command == "dump_to_stdout") {
     InstallFailureWriter(WriteToStdout);
     abort();

src/stacktrace.cc

@@ -0,0 +1,38 @@
+// Copyright (c) 2024, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Routines to extract the current stack trace.  These functions are
+// thread-safe.
+
+#include "stacktrace.h"
+
+// Make an implementation of stacktrace compiled.
+#if defined(STACKTRACE_H)
+#  include STACKTRACE_H
+#endif

src/stacktrace.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2000 - 2007, Google Inc.
+// Copyright (c) 2024, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -30,13 +30,46 @@
 // Routines to extract the current stack trace.  These functions are
 // thread-safe.
 
-#ifndef BASE_STACKTRACE_H_
-#define BASE_STACKTRACE_H_
+#ifndef GLOG_INTERNAL_STACKTRACE_H
+#define GLOG_INTERNAL_STACKTRACE_H
+
+#include "glog/platform.h"
+
+#if defined(GLOG_USE_GLOG_EXPORT)
+#  include "glog/export.h"
+#endif
+
+#if !defined(GLOG_NO_EXPORT)
+#  error "stacktrace.h" was not included correctly.
+#endif
 
 #include "config.h"
-#include <glog/logging.h>
+#if defined(HAVE_LIBUNWIND)
+#  define STACKTRACE_H "stacktrace_libunwind-inl.h"
+#elif defined(HAVE_UNWIND)
+#  define STACKTRACE_H "stacktrace_unwind-inl.h"
+#elif !defined(NO_FRAME_POINTER)
+#  if defined(__i386__) && __GNUC__ >= 2
+#    define STACKTRACE_H "stacktrace_x86-inl.h"
+#  elif (defined(__ppc__) || defined(__PPC__)) && __GNUC__ >= 2
+#    define STACKTRACE_H "stacktrace_powerpc-inl.h"
+#  elif defined(GLOG_OS_WINDOWS)
+#    define STACKTRACE_H "stacktrace_windows-inl.h"
+#  endif
+#endif
 
-_START_GOOGLE_NAMESPACE_
+#if !defined(STACKTRACE_H) && defined(HAVE_EXECINFO_BACKTRACE)
+#  define STACKTRACE_H "stacktrace_generic-inl.h"
+#endif
+
+#if defined(STACKTRACE_H)
+#  define HAVE_STACKTRACE
+#endif
+
+namespace google {
+inline namespace glog_internal_namespace_ {
+
+#if defined(HAVE_STACKTRACE)
 
 // This is similar to the GetStackFrames routine, except that it returns
 // the stack trace only, and not the stack frame sizes as well.
@@ -53,9 +86,12 @@ _START_GOOGLE_NAMESPACE_
 //      result[1]       main
 //           ....       ...
 //
-// "result" must not be NULL.
-GLOG_EXPORT int GetStackTrace(void** result, int max_depth, int skip_count);
+// "result" must not be nullptr.
+GLOG_NO_EXPORT int GetStackTrace(void** result, int max_depth, int skip_count);
 
-_END_GOOGLE_NAMESPACE_
+#endif  // defined(HAVE_STACKTRACE)
 
-#endif  // BASE_STACKTRACE_H_
+}  // namespace glog_internal_namespace_
+}  // namespace google
+
+#endif  // GLOG_INTERNAL_STACKTRACE_H

src/stacktrace_generic-inl.h

@@ -32,15 +32,18 @@
 // Note:  The glibc implementation may cause a call to malloc.
 // This can cause a deadlock in HeapProfiler.
 #include <execinfo.h>
-#include <string.h>
+
+#include <cstring>
+
 #include "stacktrace.h"
 
-_START_GOOGLE_NAMESPACE_
+namespace google {
+inline namespace glog_internal_namespace_ {
 
 // If you change this function, also change GetStackFrames below.
 int GetStackTrace(void** result, int max_depth, int skip_count) {
   static const int kStackLength = 64;
-  void * stack[kStackLength];
+  void* stack[kStackLength];
   int size;
 
   size = backtrace(stack, kStackLength);
@@ -59,4 +62,5 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   return result_count;
 }
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace glog_internal_namespace_
+}  // namespace google

src/stacktrace_libunwind-inl.h

@@ -37,10 +37,11 @@ extern "C" {
 #define UNW_LOCAL_ONLY
 #include <libunwind.h>
 }
-#include <glog/raw_logging.h>
+#include "glog/raw_logging.h"
 #include "stacktrace.h"
 
-_START_GOOGLE_NAMESPACE_
+namespace google {
+inline namespace glog_internal_namespace_ {
 
 // Sometimes, we can try to get a stack trace from within a stack
 // trace, because libunwind can call mmap (maybe indirectly via an
@@ -55,7 +56,7 @@ static __thread bool g_tl_entered; // Initialized to false.
 
 // If you change this function, also change GetStackFrames below.
 int GetStackTrace(void** result, int max_depth, int skip_count) {
-  void *ip;
+  void* ip;
   int n = 0;
   unw_cursor_t cursor;
   unw_context_t uc;
@@ -71,7 +72,7 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
 
   while (n < max_depth) {
     int ret =
-        unw_get_reg(&cursor, UNW_REG_IP, reinterpret_cast<unw_word_t *>(&ip));
+        unw_get_reg(&cursor, UNW_REG_IP, reinterpret_cast<unw_word_t*>(&ip));
     if (ret < 0) {
       break;
     }
@@ -90,4 +91,5 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   return n;
 }
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace glog_internal_namespace_
+}  // namespace google

src/stacktrace_powerpc-inl.h

@@ -35,37 +35,41 @@
 //    http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#STACK
 // Linux has similar code: http://patchwork.ozlabs.org/linuxppc/patch?id=8882
 
+#include <cstdint>  // for uintptr_t
 #include <cstdio>
-#include <stdint.h>   // for uintptr_t
+
 #include "stacktrace.h"
 
-_START_GOOGLE_NAMESPACE_
+namespace google {
+inline namespace glog_internal_namespace_ {
 
 // Given a pointer to a stack frame, locate and return the calling
-// stackframe, or return NULL if no stackframe can be found. Perform sanity
+// stackframe, or return nullptr if no stackframe can be found. Perform sanity
 // checks (the strictness of which is controlled by the boolean parameter
 // "STRICT_UNWINDING") to reduce the chance that a bad pointer is returned.
-template<bool STRICT_UNWINDING>
-static void **NextStackFrame(void **old_sp) {
-  void **new_sp = static_cast<void **>(*old_sp);
+template <bool STRICT_UNWINDING>
+static void** NextStackFrame(void** old_sp) {
+  void** new_sp = static_cast<void**>(*old_sp);
 
   // Check that the transition from frame pointer old_sp to frame
   // pointer new_sp isn't clearly bogus
   if (STRICT_UNWINDING) {
     // With the stack growing downwards, older stack frame must be
     // at a greater address that the current one.
-    if (new_sp <= old_sp) return NULL;
+    if (new_sp <= old_sp) return nullptr;
     // Assume stack frames larger than 100,000 bytes are bogus.
-    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return NULL;
+    if ((uintptr_t)new_sp - (uintptr_t)old_sp > 100000) return nullptr;
   } else {
     // In the non-strict mode, allow discontiguous stack frames.
     // (alternate-signal-stacks for example).
-    if (new_sp == old_sp) return NULL;
+    if (new_sp == old_sp) return nullptr;
     // And allow frames upto about 1MB.
-    if ((new_sp > old_sp)
-        && ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) return NULL;
+    if ((new_sp > old_sp) &&
+        ((uintptr_t)new_sp - (uintptr_t)old_sp > 1000000)) {
+      return nullptr;
     }
-  if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return NULL;
+  }
+  if ((uintptr_t)new_sp & (sizeof(void*) - 1)) return nullptr;
   return new_sp;
 }
 
@@ -75,15 +79,15 @@ void StacktracePowerPCDummyFunction() { __asm__ volatile(""); }
 
 // If you change this function, also change GetStackFrames below.
 int GetStackTrace(void** result, int max_depth, int skip_count) {
-  void **sp;
+  void** sp;
   // Apple OS X uses an old version of gnu as -- both Darwin 7.9.0 (Panther)
   // and Darwin 8.8.1 (Tiger) use as 1.38.  This means we have to use a
   // different asm syntax.  I don't know quite the best way to discriminate
   // systems using the old as from the new one; I've gone with __APPLE__.
 #ifdef __APPLE__
-  __asm__ volatile ("mr %0,r1" : "=r" (sp));
+  __asm__ volatile("mr %0,r1" : "=r"(sp));
 #else
-  __asm__ volatile ("mr %0,1" : "=r" (sp));
+  __asm__ volatile("mr %0,1" : "=r"(sp));
 #endif
 
   // On PowerPC, the "Link Register" or "Link Record" (LR), is a stack
@@ -108,17 +112,18 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
       // linux ppc64), it's in sp[2].  For SYSV (used by linux ppc),
       // it's in sp[1].
 #if defined(_CALL_AIX) || defined(_CALL_DARWIN)
-      result[n++] = *(sp+2);
+      result[n++] = *(sp + 2);
 #elif defined(_CALL_SYSV)
-      result[n++] = *(sp+1);
-#elif defined(__APPLE__) || ((defined(__linux) || defined(__linux__)) && defined(__PPC64__))
+      result[n++] = *(sp + 1);
+#elif defined(__APPLE__) || \
+    ((defined(__linux) || defined(__linux__)) && defined(__PPC64__))
       // This check is in case the compiler doesn't define _CALL_AIX/etc.
-      result[n++] = *(sp+2);
+      result[n++] = *(sp + 2);
 #elif defined(__linux) || defined(__OpenBSD__)
       // This check is in case the compiler doesn't define _CALL_SYSV.
-      result[n++] = *(sp+1);
+      result[n++] = *(sp + 1);
 #else
-#error Need to specify the PPC ABI for your archiecture.
+#  error Need to specify the PPC ABI for your architecture.
 #endif
     }
     // Use strict unwinding rules.
@@ -127,4 +132,5 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   return n;
 }
 
-_END_GOOGLE_NAMESPACE_
+}  // namespace glog_internal_namespace_
+}  // namespace google

src/stacktrace_unittest.cc

@@ -27,21 +27,20 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#include "utilities.h"
+#include "stacktrace.h"
 
 #include <cstdio>
 #include <cstdlib>
-#include "config.h"
-#include "base/commandlineflags.h"
-#include <glog/logging.h>
-#include "stacktrace.h"
 
-#ifdef HAVE_EXECINFO_H
+#include "base/commandlineflags.h"
+#include "config.h"
+#include "glog/logging.h"
+#include "utilities.h"
+
+#ifdef HAVE_EXECINFO_BACKTRACE_SYMBOLS
 #  include <execinfo.h>
 #endif
 
-using namespace GOOGLE_NAMESPACE;
-
 #ifdef HAVE_STACKTRACE
 
 // Obtain a backtrace, verify that the expected callers are present in the
@@ -58,11 +57,11 @@ struct AddressRange {
 // Expected function [start,end] range.
 AddressRange expected_range[BACKTRACE_STEPS];
 
-#if __GNUC__
+#  if __GNUC__
 // Using GCC extension: address of a label can be taken with '&&label'.
 // Start should be a label somewhere before recursive call, end somewhere
 // after it.
-#define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange)           \
+#    define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange) \
       do {                                                         \
         (prange)->start = &&start_label;                           \
         (prange)->end = &&end_label;                               \
@@ -73,66 +72,72 @@ AddressRange expected_range[BACKTRACE_STEPS];
 // Without it, there is no code following the 'end' label, and GCC
 // (4.3.1, 4.4.0) thinks it safe to assign &&end an address that is before
 // the recursive call.
-#define DECLARE_ADDRESS_LABEL(a_label)                                   \
-  a_label: do { __asm__ __volatile__(""); } while (0)
+#    define DECLARE_ADDRESS_LABEL(a_label) \
+    a_label:                               \
+      do {                                 \
+        __asm__ __volatile__("");          \
+      } while (0)
 // Gcc 4.4.0 may split function into multiple chunks, and the chunk
 // performing recursive call may end up later in the code then the return
 // instruction (this actually happens with FDO).
 // Adjust function range from __builtin_return_address.
-#define ADJUST_ADDRESS_RANGE_FROM_RA(prange)                             \
+#    define ADJUST_ADDRESS_RANGE_FROM_RA(prange)                             \
       do {                                                                   \
-    void *ra = __builtin_return_address(0);                              \
+        void* ra = __builtin_return_address(0);                              \
         CHECK_LT((prange)->start, ra);                                       \
         if (ra > (prange)->end) {                                            \
-      printf("Adjusting range from %p..%p to %p..%p\n",                  \
-             (prange)->start, (prange)->end,                             \
-             (prange)->start, ra);                                       \
+          printf("Adjusting range from %p..%p to %p..%p\n", (prange)->start, \
+                 (prange)->end, (prange)->start, ra);                        \
           (prange)->end = ra;                                                \
         }                                                                    \
       } while (0)
-#else
+#  else
 // Assume the Check* functions below are not longer than 256 bytes.
-#define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange)           \
+#    define INIT_ADDRESS_RANGE(fn, start_label, end_label, prange) \
       do {                                                         \
-    (prange)->start = reinterpret_cast<const void *>(&fn);               \
-    (prange)->end = reinterpret_cast<const char *>(&fn) + 256;           \
+        (prange)->start = reinterpret_cast<const void*>(&fn);      \
+        (prange)->end = reinterpret_cast<const char*>(&fn) + 256;  \
       } while (0)
-#define DECLARE_ADDRESS_LABEL(a_label) do { } while (0)
-#define ADJUST_ADDRESS_RANGE_FROM_RA(prange) do { } while (0)
-#endif  // __GNUC__
+#    define DECLARE_ADDRESS_LABEL(a_label) \
+      do {                                 \
+      } while (0)
+#    define ADJUST_ADDRESS_RANGE_FROM_RA(prange) \
+      do {                                       \
+      } while (0)
+#  endif  // __GNUC__
 
 //-----------------------------------------------------------------------//
 
-static void CheckRetAddrIsInFunction(void *ret_addr, const AddressRange &range)
-{
+static void CheckRetAddrIsInFunction(void* ret_addr,
+                                     const AddressRange& range) {
   CHECK_GE(ret_addr, range.start);
   CHECK_LE(ret_addr, range.end);
 }
 
 //-----------------------------------------------------------------------//
 
-#if defined(__clang__)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wgnu-label-as-value"
-#endif
+#  if defined(__clang__)
+#    pragma clang diagnostic push
+#    pragma clang diagnostic ignored "-Wgnu-label-as-value"
+#  endif
 
 void ATTRIBUTE_NOINLINE CheckStackTrace(int);
-static void ATTRIBUTE_NOINLINE CheckStackTraceLeaf(void) {
+static void ATTRIBUTE_NOINLINE CheckStackTraceLeaf() {
   const int STACK_LEN = 10;
-  void *stack[STACK_LEN];
+  void* stack[STACK_LEN];
   int size;
 
   ADJUST_ADDRESS_RANGE_FROM_RA(&expected_range[1]);
   INIT_ADDRESS_RANGE(CheckStackTraceLeaf, start, end, &expected_range[0]);
   DECLARE_ADDRESS_LABEL(start);
-  size = GetStackTrace(stack, STACK_LEN, 0);
+  size = google::GetStackTrace(stack, STACK_LEN, 0);
   printf("Obtained %d stack frames.\n", size);
   CHECK_GE(size, 1);
   CHECK_LE(size, STACK_LEN);
 
-  if (1) {
-#ifdef HAVE_EXECINFO_H
-    char **strings = backtrace_symbols(stack, size);
+  if (true) {
+#  ifdef HAVE_EXECINFO_BACKTRACE_SYMBOLS
+    char** strings = backtrace_symbols(stack, size);
     printf("Obtained %d stack frames.\n", size);
     for (int i = 0; i < size; i++) {
       printf("%s %p\n", strings[i], stack[i]);
@@ -145,11 +150,11 @@ static void ATTRIBUTE_NOINLINE CheckStackTraceLeaf(void) {
 
     printf("CheckStackTrace() addr: %p\n", p.p2);
     free(strings);
-#endif
+#  endif
   }
   for (int i = 0; i < BACKTRACE_STEPS; i++) {
-    printf("Backtrace %d: expected: %p..%p  actual: %p ... ",
-           i, expected_range[i].start, expected_range[i].end, stack[i]);
+    printf("Backtrace %d: expected: %p..%p  actual: %p ... ", i,
+           expected_range[i].start, expected_range[i].end, stack[i]);
     fflush(stdout);
     CheckRetAddrIsInFunction(stack[i], expected_range[i]);
     printf("OK\n");
@@ -197,7 +202,7 @@ static void ATTRIBUTE_NOINLINE CheckStackTrace1(int i) {
   DECLARE_ADDRESS_LABEL(end);
 }
 
-#ifndef __GNUC__
+#  ifndef __GNUC__
 // On non-GNU environment, we use the address of `CheckStackTrace` to
 // guess the address range of this function. This guess is wrong for
 // non-static function on Windows. This is probably because
@@ -205,8 +210,9 @@ static void ATTRIBUTE_NOINLINE CheckStackTrace1(int i) {
 // not the actual address of `CheckStackTrace`.
 // See https://github.com/google/glog/issues/421 for the detail.
 static
-#endif
-void ATTRIBUTE_NOINLINE CheckStackTrace(int i) {
+#  endif
+    void ATTRIBUTE_NOINLINE
+    CheckStackTrace(int i) {
   INIT_ADDRESS_RANGE(CheckStackTrace, start, end, &expected_range[5]);
   DECLARE_ADDRESS_LABEL(start);
   for (int j = i; j >= 0; j--) {
@@ -215,15 +221,15 @@ void ATTRIBUTE_NOINLINE CheckStackTrace(int i) {
   DECLARE_ADDRESS_LABEL(end);
 }
 
-#if defined(__clang__)
-#pragma clang diagnostic pop
-#endif
+#  if defined(__clang__)
+#    pragma clang diagnostic pop
+#  endif
 
 //-----------------------------------------------------------------------//
 
-int main(int, char ** argv) {
+int main(int, char** argv) {
   FLAGS_logtostderr = true;
-  InitGoogleLogging(argv[0]);
+  google::InitGoogleLogging(argv[0]);
 
   CheckStackTrace(0);
 
@@ -233,6 +239,12 @@ int main(int, char ** argv) {
 
 #else
 int main() {
+
+#  ifdef GLOG_BAZEL_BUILD
+  printf("HAVE_STACKTRACE is expected to be defined in Bazel tests\n");
+  exit(EXIT_FAILURE);
+#  endif  // GLOG_BAZEL_BUILD
+
   printf("PASS (no stacktrace support)\n");
   return 0;
 }