wip

.bazelci/presubmit.yml

@@ -1,8 +1,8 @@
 ---
 tasks:
   ubuntu1804:
-    name: "Ubuntu 22.04"
+    name: "Ubuntu 18.04"
-    platform: ubuntu2204
+    platform: ubuntu1804
     build_flags:
     - "--features=layering_check"
     - "--copt=-Werror"

.clang-format

@@ -58,7 +58,7 @@ ConstructorInitializerIndentWidth: 4
 ContinuationIndentWidth: 4
 Cpp11BracedListStyle: true
 DeriveLineEnding: true
-DerivePointerAlignment: false
+DerivePointerAlignment: true
 DisableFormat:   false
 ExperimentalAutoDetectBinPacking: false
 FixNamespaceComments: true
@@ -84,7 +84,7 @@ IncludeIsMainRegex: '([-_](test|unittest))?$'
 IncludeIsMainSourceRegex: ''
 IndentCaseLabels: true
 IndentGotoLabels: true
-IndentPPDirectives: AfterHash
+IndentPPDirectives: None
 IndentWidth:     2
 IndentWrappedFunctionNames: false
 JavaScriptQuotes: Leave

.clang-tidy

@@ -2,6 +2,7 @@
 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/workflows/android.yml

@@ -5,7 +5,7 @@ on: [push, pull_request]
 jobs:
   build-android:
     name: NDK-C++${{matrix.std}}-${{matrix.abi}}-${{matrix.build_type}}
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-22.04-8core
     permissions:
       actions: read
       contents: read

.github/workflows/emscripten.yml

@@ -8,7 +8,7 @@ jobs:
       run:
         shell: bash
     name: Emscripten-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-22.04-8core
     permissions:
       actions: read
       contents: read
@@ -40,11 +40,18 @@ jobs:
         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}} \
+          cmake -S . -B build_${{matrix.build_type}} \
             -DBUILD_SHARED_LIBS=${{matrix.lib == 'shared'}} \
+            -DCMAKE_AR=$(which emar) \
+            -DCMAKE_CXX_COMPILER=$(which em++) \
             -DCMAKE_CXX_STANDARD=${{matrix.std}} \
             -DCMAKE_CXX_STANDARD_REQUIRED=ON \
+            -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE=ONLY \
+            -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY=ONLY \
+            -DCMAKE_FIND_ROOT_PATH_MODE_PACKAGE=ONLY \
+            -DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM=NEVER \
             -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/install \
+            -DCMAKE_RANLIB=$(which emranlib) \
             -G Ninja \
             -Werror
 

.github/workflows/linux.yml

@@ -8,7 +8,7 @@ jobs:
       run:
         shell: bash
     name: GCC-C++${{matrix.std}}-${{matrix.build_type}}-${{matrix.lib}}
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-22.04-8core
     permissions:
       actions: read
       contents: read
@@ -31,20 +31,42 @@ jobs:
       - name: Setup Dependencies
         run: |
           sudo apt-get update
-          DEBIAN_FRONTEND=noninteractive sudo apt-get install -y --no-install-suggests --no-install-recommends \
+          DEBIAN_FRONTEND=noninteractive sudo apt-get install -y \
-            g++ \
+            build-essential \
             cmake \
             gcovr \
             libgflags-dev \
-            libgmock-dev \
-            libgtest-dev \
             libunwind-dev \
             ninja-build
 
+      - name: Cache GTest
+        id: cache-gtest
+        uses: actions/cache@v3
+        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: Configure
         env:
@@ -106,10 +128,17 @@ jobs:
         run: |
           cd build_${{matrix.build_type}}
           gcovr -r .. . -s --xml coverage.xml
+          cd ..
+
+          for file in src/glog/*.h.in; do
+            name=$(basename ${file})
+            name_we=${name%.h.in}
+            sed -i "s|build_${{matrix.build_type}}/glog/${name_we}.h|${file}|g" build_${{matrix.build_type}}/coverage.xml
+          done
 
       - name: Upload Coverage to Codecov
         if: matrix.build_type == 'Debug'
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: build_${{matrix.build_type}}/coverage.xml

.github/workflows/macos.yml

@@ -63,12 +63,18 @@ jobs:
         if: matrix.build_type == 'Debug'
         run: |
           cd build_${{matrix.build_type}}
-          rm -r Tests/
           gcovr -r .. . -s --cobertura coverage.xml
+          cd ..
+
+          for file in src/glog/*.h.in; do
+            name=$(basename ${file})
+            name_we=${name%.h.in}
+            sed -i "" "s|build_${{matrix.build_type}}/glog/${name_we}.h|${file}|g" build_${{matrix.build_type}}/coverage.xml
+          done
 
       - name: Upload Coverage to Codecov
         if: matrix.build_type == 'Debug'
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: build_${{matrix.build_type}}/coverage.xml

.github/workflows/windows.yml

@@ -42,21 +42,21 @@ jobs:
 
       - name: Cache GTest
         id: cache-gtest
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: gtest/
-          key: ${{runner.os}}-gtest-1.14-${{matrix.lib}}-${{matrix.arch}}-${{matrix.build_type}}
+          key: ${{runner.os}}-gtest-1.11-${{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/v1.14.0.zip", "v1.14.0.zip")
+          (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 v1.14.0.zip .
+          Expand-Archive release-1.11.0.zip .
 
       - name: Build GTest
         if: steps.cache-gtest.outputs.cache-hit != 'true'
         run: |
-          cmake -S googletest-1.14.0 -B build-googletest `
+          cmake -S googletest-release-1.11.0 -B build-googletest `
                 -A ${{matrix.arch}} `
                 -DBUILD_SHARED_LIBS=${{matrix.lib == 'shared'}} `
                 -Dgtest_force_shared_crt=ON `
@@ -67,7 +67,7 @@ jobs:
 
       - name: Cache gflags
         id: cache-gflags
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: gflags/
           key: ${{runner.os}}-gflags-2.2.2-${{matrix.lib}}-${{matrix.arch}}-${{matrix.build_type}}
@@ -188,7 +188,7 @@ jobs:
       - name: Setup Coverage Dependencies
         if: matrix.build_type == 'Debug'
         run: |
-          pip install 'gcovr==7.0'
+          pip install 'gcovr==6.0'
 
       - name: Setup Environment
         if: matrix.build_type == 'Debug'
@@ -231,10 +231,17 @@ jobs:
         run: |
           cd build_${{matrix.build_type}}
           gcovr -r .. . -s --cobertura coverage.xml
+          cd ..
+
+          for file in src/glog/*.h.in; do
+            name=$(basename ${file})
+            name_we=${name%.h.in}
+            sed -i "s|build_${{matrix.build_type}}/glog/${name_we}.h|${file}|g" build_${{matrix.build_type}}/coverage.xml
+          done
 
       - name: Upload Coverage to Codecov
         if: matrix.build_type == 'Debug'
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v3
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: build_${{matrix.build_type}}/coverage.xml

.gitignore

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

BUILD.bazel

@@ -17,6 +17,6 @@ platform(
     constraint_values = [
         "@platforms//cpu:x86_64",
         "@platforms//os:windows",
-        "@rules_cc//cc/private/toolchain:clang-cl",
+        "@bazel_tools//tools/cpp:clang-cl",
     ],
 )

CMakeLists.txt

@@ -1,6 +1,6 @@
-cmake_minimum_required (VERSION 3.22)
+cmake_minimum_required (VERSION 3.21)
 project (glog
-  VERSION 0.8.0
+  VERSION 0.7.0
   DESCRIPTION "C++ implementation of the Google logging module"
   HOMEPAGE_URL https://github.com/google/glog
   LANGUAGES CXX
@@ -8,17 +8,20 @@ project (glog
 
 set (CPACK_PACKAGE_NAME glog)
 set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "Google logging library")
-set (CPACK_PACKAGE_VERSION_MAJOR ${glog_VERSION_MAJOR})
+set (CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
-set (CPACK_PACKAGE_VERSION_MINOR ${glog_VERSION_MINOR})
+set (CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
-set (CPACK_PACKAGE_VERSION_PATCH ${glog_VERSION_PATCH})
+set (CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
-set (CPACK_PACKAGE_VERSION ${glog_VERSION})
+set (CPACK_PACKAGE_VERSION ${PROJECT_VERSION})
 
-list (APPEND CMAKE_MODULE_PATH ${glog_SOURCE_DIR}/cmake)
+list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
+include (CheckCXXCompilerFlag)
 include (CheckCXXSourceCompiles)
 include (CheckCXXSourceRuns)
 include (CheckCXXSymbolExists)
+include (CheckFunctionExists)
 include (CheckIncludeFileCXX)
+include (CheckLibraryExists)
 include (CheckStructHasMember)
 include (CheckTypeSize)
 include (CMakeDependentOption)
@@ -32,39 +35,42 @@ include (GetCacheVariables)
 include (GNUInstallDirs)
 
 option (BUILD_SHARED_LIBS "Build shared libraries" ON)
-option (BUILD_EXAMPLES "Build examples" ON)
 option (PRINT_UNSYMBOLIZED_STACK_TRACES
   "Print file offsets in traces instead of symbolizing" OFF)
 option (WITH_GFLAGS "Use gflags" ON)
 option (WITH_GTEST "Use Google Test" ON)
-option (WITH_PKGCONFIG "Enable pkg-config support" OFF)
+option (WITH_PKGCONFIG "Enable pkg-config support" ON)
 option (WITH_SYMBOLIZE "Enable symbolize module" ON)
+option (WITH_THREADS "Enable multithreading support" ON)
 option (WITH_TLS "Enable Thread Local Storage (TLS) support" ON)
-
+option (WITH_UNWIND "Enable libunwind support" ON)
-set (WITH_UNWIND libunwind CACHE STRING "unwind driver")
-set_property (CACHE WITH_UNWIND PROPERTY STRINGS none unwind libunwind)
 
 cmake_dependent_option (WITH_GMOCK "Use Google Mock" ON WITH_GTEST OFF)
 
 set (WITH_FUZZING none CACHE STRING "Fuzzing engine")
 set_property (CACHE WITH_FUZZING PROPERTY STRINGS none libfuzzer ossfuzz)
 
-if (WITH_UNWIND STREQUAL none)
+if (NOT WITH_UNWIND)
   set (CMAKE_DISABLE_FIND_PACKAGE_Unwind ON)
-endif (WITH_UNWIND STREQUAL none)
+endif (NOT WITH_UNWIND)
 
 if (NOT WITH_GTEST)
   set (CMAKE_DISABLE_FIND_PACKAGE_GTest ON)
 endif (NOT WITH_GTEST)
 
+if (NOT WITH_THREADS)
+  set (CMAKE_DISABLE_FIND_PACKAGE_Threads ON)
+endif (NOT WITH_THREADS)
+
 set (CMAKE_C_VISIBILITY_PRESET hidden)
 set (CMAKE_CXX_VISIBILITY_PRESET hidden)
 set (CMAKE_POSITION_INDEPENDENT_CODE ON)
 set (CMAKE_VISIBILITY_INLINES_HIDDEN ON)
 
 set (CMAKE_DEBUG_POSTFIX d)
+set (CMAKE_THREAD_PREFER_PTHREAD 1)
 
-find_package (GTest 1.11 COMPONENTS GTest OPTIONAL_COMPONENTS GMock NO_MODULE)
+find_package (GTest NO_MODULE)
 
 if (GTest_FOUND)
   set (HAVE_LIB_GTEST 1)
@@ -83,54 +89,25 @@ if (WITH_GFLAGS)
   endif (gflags_FOUND)
 endif (WITH_GFLAGS)
 
-find_package (Threads REQUIRED)
+find_package (Threads)
 find_package (Unwind)
 
 if (Unwind_FOUND)
-  cmake_push_check_state (RESET)
+  set (HAVE_LIB_UNWIND 1)
-  set (CMAKE_REQUIRED_LIBRARIES unwind::unwind)
+else (Unwind_FOUND)
-
   # Check whether linking actually succeeds. ARM toolchains of LLVM unwind
   # implementation do not necessarily provide the _Unwind_Backtrace function
   # which causes the previous check to succeed but the linking to fail.
   check_cxx_symbol_exists (_Unwind_Backtrace unwind.h HAVE__UNWIND_BACKTRACE)
   check_cxx_symbol_exists (_Unwind_GetIP unwind.h HAVE__UNWIND_GETIP)
-
-  check_cxx_symbol_exists (unw_get_reg libunwind.h HAVE_UNW_GET_REG)
-  check_cxx_symbol_exists (unw_getcontext libunwind.h HAVE_UNW_GETCONTEXT)
-  check_cxx_symbol_exists (unw_init_local libunwind.h HAVE_UNW_INIT_LOCAL)
-  check_cxx_symbol_exists (unw_step libunwind.h HAVE_UNW_STEP)
-
-  if (HAVE__UNWIND_BACKTRACE AND HAVE__UNWIND_GETIP)
-    set (_HAVE_UNWIND 1)
-  endif (HAVE__UNWIND_BACKTRACE AND HAVE__UNWIND_GETIP)
-
-  if (HAVE_UNW_GET_REG AND HAVE_UNW_GETCONTEXT AND HAVE_UNW_INIT_LOCAL AND HAVE_UNW_STEP)
-    set (_HAVE_LIBUNWIND 1)
-  endif (HAVE_UNW_GET_REG AND HAVE_UNW_GETCONTEXT AND HAVE_UNW_INIT_LOCAL AND HAVE_UNW_STEP)
-
-  if (WITH_UNWIND STREQUAL unwind)
-    if (_HAVE_UNWIND)
-      set (HAVE_UNWIND 1)
-    endif (_HAVE_UNWIND)
-  elseif (WITH_UNWIND STREQUAL libunwind)
-    if (_HAVE_LIBUNWIND)
-      set (HAVE_LIBUNWIND 1)
-    endif (_HAVE_LIBUNWIND)
-  endif (WITH_UNWIND STREQUAL unwind)
-
-  unset (_HAVE_LIBUNWIND)
-  unset (_HAVE_UNWIND)
-
-  cmake_pop_check_state ()
 endif (Unwind_FOUND)
 
 check_include_file_cxx (dlfcn.h HAVE_DLFCN_H)
-check_include_file_cxx (elf.h HAVE_ELF_H)
 check_include_file_cxx (glob.h HAVE_GLOB_H)
-check_include_file_cxx (link.h HAVE_LINK_H)
+check_include_file_cxx (memory.h HAVE_MEMORY_H)
 check_include_file_cxx (pwd.h HAVE_PWD_H)
-check_include_file_cxx (sys/exec_elf.h HAVE_SYS_EXEC_ELF_H)
+check_include_file_cxx (strings.h HAVE_STRINGS_H)
+check_include_file_cxx (sys/stat.h HAVE_SYS_STAT_H)
 check_include_file_cxx (sys/syscall.h HAVE_SYS_SYSCALL_H)
 check_include_file_cxx (sys/time.h HAVE_SYS_TIME_H)
 check_include_file_cxx (sys/types.h HAVE_SYS_TYPES_H)
@@ -144,38 +121,93 @@ check_include_file_cxx (unistd.h HAVE_UNISTD_H)
 check_type_size (mode_t HAVE_MODE_T LANGUAGE CXX)
 check_type_size (ssize_t HAVE_SSIZE_T LANGUAGE CXX)
 
-check_cxx_symbol_exists (dladdr dlfcn.h HAVE_DLADDR)
+check_function_exists (dladdr HAVE_DLADDR)
-check_cxx_symbol_exists (fcntl fcntl.h HAVE_FCNTL)
+check_function_exists (fcntl HAVE_FCNTL)
-check_cxx_symbol_exists (posix_fadvise fcntl.h HAVE_POSIX_FADVISE)
+check_function_exists (pread HAVE_PREAD)
-check_cxx_symbol_exists (pread unistd.h HAVE_PREAD)
+check_function_exists (pwrite HAVE_PWRITE)
-check_cxx_symbol_exists (pwrite unistd.h HAVE_PWRITE)
+check_function_exists (sigaction HAVE_SIGACTION)
-check_cxx_symbol_exists (sigaction csignal HAVE_SIGACTION)
+check_function_exists (sigaltstack HAVE_SIGALTSTACK)
-check_cxx_symbol_exists (sigaltstack csignal HAVE_SIGALTSTACK)
 
 check_cxx_symbol_exists (backtrace execinfo.h HAVE_EXECINFO_BACKTRACE)
 check_cxx_symbol_exists (backtrace_symbols execinfo.h
   HAVE_EXECINFO_BACKTRACE_SYMBOLS)
 check_cxx_symbol_exists (_chsize_s io.h HAVE__CHSIZE_S)
 
+# NOTE gcc does not fail if you pass a non-existent -Wno-* option as an
+# argument. However, it will happily fail if you pass the corresponding -W*
+# option. So, we check whether options that disable warnings exist by testing
+# the availability of the corresponding option that enables the warning. This
+# eliminates the need to check for compiler for several (mainly Clang) options.
+
+check_cxx_compiler_flag (-Wdeprecated HAVE_NO_DEPRECATED)
+check_cxx_compiler_flag (-Wunnamed-type-template-args
+    HAVE_NO_UNNAMED_TYPE_TEMPLATE_ARGS)
+
 cmake_push_check_state (RESET)
-set (CMAKE_REQUIRED_LIBRARIES dbghelp)
+
-check_cxx_symbol_exists (UnDecorateSymbolName "windows.h;dbghelp.h" HAVE_DBGHELP)
+if (Threads_FOUND)
+  set (CMAKE_REQUIRED_LIBRARIES Threads::Threads)
+endif (Threads_FOUND)
+
+check_cxx_symbol_exists (pthread_threadid_np "pthread.h" HAVE_PTHREAD_THREADID_NP)
 cmake_pop_check_state ()
 
-if (WITH_FUZZING STREQUAL none)
+# NOTE: Cannot use check_function_exists here since >=vc-14.0 can define
-  # Disable compiler demangler if fuzzing is active; we only want to use the
+# snprintf as an inline function
-  # glog demangler then.
+check_cxx_symbol_exists (snprintf cstdio HAVE_SNPRINTF)
-  check_cxx_symbol_exists (abi::__cxa_demangle cxxabi.h HAVE___CXA_DEMANGLE)
-endif (WITH_FUZZING STREQUAL none)
 
-check_cxx_symbol_exists (__argv cstdlib HAVE___ARGV)
+check_library_exists (dbghelp UnDecorateSymbolName "" HAVE_DBGHELP)
-check_cxx_symbol_exists (getprogname cstdlib HAVE_GETPROGNAME)
+
-check_cxx_symbol_exists (program_invocation_short_name cerrno HAVE_PROGRAM_INVOCATION_SHORT_NAME)
+check_cxx_source_compiles ("
-check_cxx_source_compiles ([=[
 #include <cstdlib>
-extern char* __progname;
+static void foo(void) __attribute__ ((unused));
-int main() { return __progname != nullptr ? EXIT_SUCCESS : EXIT_FAILURE; }
+int main(void) { return 0; }
-]=] HAVE___PROGNAME)
+" HAVE___ATTRIBUTE__)
+
+check_cxx_source_compiles ("
+#include <cstdlib>
+static void foo(void) __attribute__ ((visibility(\"default\")));
+int main(void) { return 0; }
+" HAVE___ATTRIBUTE__VISIBILITY_DEFAULT)
+
+check_cxx_source_compiles ("
+#include <cstdlib>
+static void foo(void) __attribute__ ((visibility(\"hidden\")));
+int main(void) { return 0; }
+" HAVE___ATTRIBUTE__VISIBILITY_HIDDEN)
+
+check_cxx_source_compiles ("
+int main(void) { if (__builtin_expect(0, 0)) return 1; return 0; }
+" HAVE___BUILTIN_EXPECT)
+
+check_cxx_source_compiles ("
+int main(void)
+{
+  int a; if (__sync_val_compare_and_swap(&a, 0, 1)) return 1; return 0;
+}
+" HAVE___SYNC_VAL_COMPARE_AND_SWAP)
+
+if (Threads_FOUND)
+  cmake_push_check_state (RESET)
+  set (CMAKE_REQUIRED_LIBRARIES Threads::Threads)
+  check_cxx_source_compiles ("
+#define _XOPEN_SOURCE 500
+#include <pthread.h>
+int main(void)
+{
+  pthread_rwlock_t l;
+  pthread_rwlock_init(&l, NULL);
+  pthread_rwlock_rdlock(&l);
+  return 0;
+}
+  " HAVE_RWLOCK)
+  cmake_pop_check_state ()
+endif (Threads_FOUND)
+
+check_cxx_source_compiles ("
+__declspec(selectany) int a;
+int main(void) { return 0; }
+" HAVE___DECLSPEC)
 
 if (WITH_TLS)
   set (GLOG_THREAD_LOCAL_STORAGE 1)
@@ -238,6 +270,58 @@ if (HAVE_UCONTEXT_H AND NOT DEFINED PC_FROM_UCONTEXT)
   cmake_pop_check_state ()
 endif (HAVE_UCONTEXT_H AND NOT DEFINED PC_FROM_UCONTEXT)
 
+set (GOOGLE_NAMESPACE google)
+set (_START_GOOGLE_NAMESPACE_ "namespace ${GOOGLE_NAMESPACE} {")
+set (_END_GOOGLE_NAMESPACE_ "}")
+set (ac_cv_have_glog_export 1)
+
+if (HAVE_LIB_GFLAGS)
+  set (ac_cv_have_libgflags 1)
+else (HAVE_LIB_GFLAGS)
+  set (ac_cv_have_libgflags 0)
+endif (HAVE_LIB_GFLAGS)
+
+if (HAVE_SYS_TYPES_H)
+  set (ac_cv_have_systypes_h 1)
+else (HAVE_SYS_TYPES_H)
+  set (ac_cv_have_systypes_h 0)
+endif (HAVE_SYS_TYPES_H)
+
+if (HAVE_SSIZE_T)
+  set (ac_cv_have_ssize_t 1)
+else (HAVE_SSIZE_T)
+  set (ac_cv_have_ssize_t 0)
+endif (HAVE_SSIZE_T)
+
+if (HAVE_MODE_T)
+  set (ac_cv_have_mode_t 1)
+else (HAVE_MODE_T)
+  set (ac_cv_have_mode_t 0)
+endif (HAVE_MODE_T)
+
+if (HAVE_UNISTD_H)
+  set (ac_cv_have_unistd_h 1)
+else (HAVE_UNISTD_H)
+  set (ac_cv_have_unistd_h 0)
+endif (HAVE_UNISTD_H)
+
+set (ac_google_namespace ${GOOGLE_NAMESPACE})
+set (ac_google_end_namespace ${_END_GOOGLE_NAMESPACE_})
+set (ac_google_start_namespace ${_START_GOOGLE_NAMESPACE_})
+
+if (HAVE___ATTRIBUTE__)
+  set (ac_cv___attribute___noinline "__attribute__((noinline))")
+  set (ac_cv___attribute___printf_4_5 "__attribute__((__format__(__printf__, 4, 5)))")
+elseif (HAVE___DECLSPEC)
+  #set (ac_cv___attribute___noinline "__declspec(noinline)")
+endif (HAVE___ATTRIBUTE__)
+
+if (HAVE___BUILTIN_EXPECT)
+  set (ac_cv_have___builtin_expect 1)
+else (HAVE___BUILTIN_EXPECT)
+  set (ac_cv_have___builtin_expect 0)
+endif (HAVE___BUILTIN_EXPECT)
+
 if (HAVE_EXECINFO_BACKTRACE AND HAVE_EXECINFO_BACKTRACE_SYMBOLS)
   set (HAVE_STACKTRACE 1)
 endif (HAVE_EXECINFO_BACKTRACE AND HAVE_EXECINFO_BACKTRACE_SYMBOLS)
@@ -278,12 +362,19 @@ if (WITH_SYMBOLIZE)
     if (HAVE_SYMBOLIZE)
       set (HAVE_STACKTRACE 1)
     endif (HAVE_SYMBOLIZE)
+  elseif (UNIX)
+    cmake_push_check_state (RESET)
+    check_cxx_source_compiles ([=[
+    int main()
+    {
+      #ifndef __ELF__
+      #error __ELF__ not defined
+      #endif
+    }
+    ]=] HAVE_SYMBOLIZE)
+    cmake_pop_check_state ()
   elseif (APPLE AND HAVE_DLADDR)
     set (HAVE_SYMBOLIZE 1)
-  elseif (UNIX)
-    if (HAVE_ELF_H OR HAVE_SYS_EXEC_ELF_H)
-      set (HAVE_SYMBOLIZE 1)
-    endif (HAVE_ELF_H OR HAVE_SYS_EXEC_ELF_H)
   endif (WIN32 OR CYGWIN)
 endif (WITH_SYMBOLIZE)
 
@@ -291,23 +382,46 @@ endif (WITH_SYMBOLIZE)
 # building the library.
 add_compile_definitions (GLOG_NO_SYMBOLIZE_DETECTION)
 
-check_cxx_symbol_exists (gmtime_r "cstdlib;ctime" HAVE_GMTIME_R)
+check_cxx_source_compiles ("
-check_cxx_symbol_exists (localtime_r "cstdlib;ctime" HAVE_LOCALTIME_R)
+#include <cstdlib>
+#include <ctime>
+int main()
+{
+    time_t timep;
+    struct tm result;
+    localtime_r(&timep, &result);
+    return EXIT_SUCCESS;
+}
+" HAVE_LOCALTIME_R)
 
 set (SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P})
 
+if (WITH_THREADS AND Threads_FOUND)
+  if (CMAKE_USE_PTHREADS_INIT)
+    set (HAVE_PTHREAD 1)
+  endif (CMAKE_USE_PTHREADS_INIT)
+else (WITH_THREADS AND Threads_FOUND)
+  set (NO_THREADS 1)
+endif (WITH_THREADS AND Threads_FOUND)
+
 # fopen/open on Cygwin can not handle unix-type paths like /home/....
 # therefore we translate TEST_SRC_DIR to windows-path.
 if (CYGWIN)
-  execute_process (COMMAND cygpath.exe -m ${glog_SOURCE_DIR}
+  execute_process (COMMAND cygpath.exe -m ${CMAKE_CURRENT_SOURCE_DIR}
                    OUTPUT_STRIP_TRAILING_WHITESPACE
                    OUTPUT_VARIABLE TEST_SRC_DIR)
   set (TEST_SRC_DIR \"${TEST_SRC_DIR}\")
 else (CYGWIN)
-  set (TEST_SRC_DIR \"${glog_SOURCE_DIR}\")
+  set (TEST_SRC_DIR \"${CMAKE_CURRENT_SOURCE_DIR}\")
 endif (CYGWIN)
 
 configure_file (src/config.h.cmake.in config.h)
+configure_file (src/glog/logging.h.in glog/logging.h @ONLY)
+configure_file (src/glog/raw_logging.h.in glog/raw_logging.h @ONLY)
+configure_file (src/glog/stl_logging.h.in glog/stl_logging.h @ONLY)
+configure_file (src/glog/vlog_is_on.h.in glog/vlog_is_on.h @ONLY)
+
+add_compile_options ($<$<AND:$<BOOL:${HAVE_NO_UNNAMED_TYPE_TEMPLATE_ARGS}>,$<NOT:$<CXX_COMPILER_ID:GNU>>>:-Wno-unnamed-type-template-args>)
 
 set (_glog_CMake_BINDIR ${CMAKE_INSTALL_BINDIR})
 set (_glog_CMake_INCLUDE_DIR ${CMAKE_INSTALL_INCLUDEDIR})
@@ -317,14 +431,14 @@ set (_glog_CMake_INSTALLDIR ${_glog_CMake_LIBDIR}/cmake/glog)
 set (_glog_CMake_DIR glog/cmake)
 set (_glog_CMake_DATADIR ${CMAKE_INSTALL_DATAROOTDIR}/${_glog_CMake_DIR})
 set (_glog_BINARY_CMake_DATADIR
-  ${glog_BINARY_DIR}/${_glog_CMake_DATADIR})
+  ${CMAKE_CURRENT_BINARY_DIR}/${_glog_CMake_DATADIR})
 
 # Add additional CMake find modules here.
 set (_glog_CMake_MODULES)
 
 if (Unwind_FOUND)
   # Copy the module only if libunwind is actually used.
-  list (APPEND _glog_CMake_MODULES ${glog_SOURCE_DIR}/cmake/FindUnwind.cmake)
+  list (APPEND _glog_CMake_MODULES ${CMAKE_CURRENT_SOURCE_DIR}/cmake/FindUnwind.cmake)
 endif (Unwind_FOUND)
 
 # Generate file name for each module in the binary directory
@@ -348,29 +462,25 @@ if (_glog_CMake_MODULES)
 endif (_glog_CMake_MODULES)
 
 set (GLOG_PUBLIC_H
-  ${glog_BINARY_DIR}/glog/export.h
+  ${CMAKE_CURRENT_BINARY_DIR}/glog/export.h
+  ${CMAKE_CURRENT_BINARY_DIR}/glog/logging.h
+  ${CMAKE_CURRENT_BINARY_DIR}/glog/raw_logging.h
+  ${CMAKE_CURRENT_BINARY_DIR}/glog/stl_logging.h
+  ${CMAKE_CURRENT_BINARY_DIR}/glog/vlog_is_on.h
   src/glog/log_severity.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/flags.h
-  src/glog/vlog_is_on.h
 )
 
 set (GLOG_SRCS
   ${GLOG_PUBLIC_H}
   src/base/commandlineflags.h
   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/symbolize.cc
   src/symbolize.h
   src/utilities.cc
@@ -378,14 +488,12 @@ set (GLOG_SRCS
   src/vlog_is_on.cc
 )
 
-# NOTE MSYS2 defines both WIN32 and UNIX. Do not use windows port in this case.
+if (CYGWIN OR WIN32)
-if ((CYGWIN OR WIN32) AND NOT UNIX)
   list (APPEND GLOG_SRCS
     src/windows/port.cc
     src/windows/port.h
   )
-  set (_glog_USE_WINDOWS_PORT TRUE)
+endif (CYGWIN OR WIN32)
-endif ((CYGWIN OR WIN32) AND NOT UNIX)
 
 add_library (glog_internal OBJECT
   ${_glog_BINARY_CMake_MODULES}
@@ -413,26 +521,6 @@ add_library (glog::glog ALIAS glog)
 
 set (glog_libraries_options_for_static_linking)
 
-# CMake always uses the generated export header
-target_compile_definitions (glog PUBLIC GLOG_USE_GLOG_EXPORT)
-
-if (_glog_USE_WINDOWS_PORT)
-  target_compile_definitions (glog PRIVATE GLOG_USE_WINDOWS_PORT)
-endif (_glog_USE_WINDOWS_PORT)
-
-unset (_glog_USE_WINDOWS_PORT)
-
-if (WIN32)
-  # Do not define min and max as macros
-  target_compile_definitions (glog PRIVATE NOMINMAX)
-  # Exclude unnecessary funcitonality
-  target_compile_definitions (glog PRIVATE WIN32_LEAN_AND_MEAN)
-endif (WIN32)
-
-if (HAVE_LIB_GFLAGS)
-  target_compile_definitions (glog PUBLIC GLOG_USE_GFLAGS)
-endif (HAVE_LIB_GFLAGS)
-
 if (Unwind_FOUND)
   target_link_libraries (glog PRIVATE unwind::unwind)
   set (glog_libraries_options_for_static_linking "${glog_libraries_options_for_static_linking} -lunwind")
@@ -444,11 +532,13 @@ if (HAVE_DBGHELP)
   set (glog_libraries_options_for_static_linking "${glog_libraries_options_for_static_linking} -ldbghelp")
 endif (HAVE_DBGHELP)
 
-target_link_libraries (glog PRIVATE Threads::Threads)
+if (HAVE_PTHREAD)
+  target_link_libraries (glog PRIVATE ${CMAKE_THREAD_LIBS_INIT})
 
-if (CMAKE_THREAD_LIBS_INIT)
+  if (CMAKE_THREAD_LIBS_INIT)
-  set (glog_libraries_options_for_static_linking "${glog_libraries_options_for_static_linking} ${CMAKE_THREAD_LIBS_INIT}")
+    set (glog_libraries_options_for_static_linking "${glog_libraries_options_for_static_linking} ${CMAKE_THREAD_LIBS_INIT}")
-endif (CMAKE_THREAD_LIBS_INIT)
+  endif (CMAKE_THREAD_LIBS_INIT)
+endif (HAVE_PTHREAD)
 
 if (gflags_FOUND)
   # Prefer the gflags target that uses double colon convention
@@ -466,8 +556,8 @@ if (ANDROID)
   set (glog_libraries_options_for_static_linking "${glog_libraries_options_for_static_linking} -llog")
 endif (ANDROID)
 
-set_target_properties (glog PROPERTIES VERSION ${glog_VERSION})
+set_target_properties (glog PROPERTIES VERSION ${PROJECT_VERSION})
-set_target_properties (glog PROPERTIES SOVERSION 3)
+set_target_properties (glog PROPERTIES SOVERSION 1)
 
 if (CYGWIN OR WIN32)
   target_compile_definitions (glog PUBLIC GLOG_NO_ABBREVIATED_SEVERITIES)
@@ -476,20 +566,20 @@ endif (CYGWIN OR WIN32)
 set_target_properties (glog PROPERTIES PUBLIC_HEADER "${GLOG_PUBLIC_H}")
 
 target_include_directories (glog BEFORE PUBLIC
-  "$<BUILD_INTERFACE:${glog_BINARY_DIR}>"
+  "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>"
-  "$<BUILD_INTERFACE:${glog_SOURCE_DIR}/src>"
+  "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>"
   "$<INSTALL_INTERFACE:${_glog_CMake_INCLUDE_DIR}>"
-  PRIVATE ${glog_BINARY_DIR}
+  PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
-  PRIVATE ${glog_SOURCE_DIR}/src)
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
 
 if (CYGWIN OR WIN32)
   target_include_directories (glog_internal PUBLIC
-    "$<BUILD_INTERFACE:${glog_SOURCE_DIR}/src/windows>"
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/windows>"
-    PRIVATE ${glog_SOURCE_DIR}/src/windows)
+    PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src/windows)
 
   target_include_directories (glog PUBLIC
-    "$<BUILD_INTERFACE:${glog_SOURCE_DIR}/src/windows>"
+    "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src/windows>"
-    PRIVATE ${glog_SOURCE_DIR}/src/windows)
+    PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src/windows)
 endif (CYGWIN OR WIN32)
 
 set_target_properties (glog PROPERTIES DEFINE_SYMBOL GOOGLE_GLOG_IS_A_DLL)
@@ -502,20 +592,20 @@ target_compile_definitions (glog_internal PUBLIC
 
 generate_export_header (glog
   EXPORT_MACRO_NAME GLOG_EXPORT
-  EXPORT_FILE_NAME ${glog_BINARY_DIR}/glog/export.h)
+  EXPORT_FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/glog/export.h)
 
 string (STRIP "${glog_libraries_options_for_static_linking}" glog_libraries_options_for_static_linking)
 
 if (WITH_PKGCONFIG)
-  set (VERSION ${glog_VERSION})
+  set (VERSION ${PROJECT_VERSION})
   set (prefix ${CMAKE_INSTALL_PREFIX})
   set (exec_prefix ${CMAKE_INSTALL_FULL_BINDIR})
   set (libdir ${CMAKE_INSTALL_FULL_LIBDIR})
   set (includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
 
   configure_file (
-    "${glog_SOURCE_DIR}/libglog.pc.in"
+    "${PROJECT_SOURCE_DIR}/libglog.pc.in"
-    "${glog_BINARY_DIR}/libglog.pc"
+    "${PROJECT_BINARY_DIR}/libglog.pc"
     @ONLY
   )
 
@@ -570,6 +660,16 @@ if (BUILD_TESTING)
 
   target_link_libraries (stl_logging_unittest PRIVATE glog_test)
 
+  if (HAVE_NO_DEPRECATED)
+    set_property (TARGET stl_logging_unittest APPEND PROPERTY COMPILE_OPTIONS
+      -Wno-deprecated)
+  endif (HAVE_NO_DEPRECATED)
+
+  if (HAVE_EXT_SLIST)
+    target_compile_definitions (stl_logging_unittest PRIVATE
+      GLOG_STL_LOGGING_FOR_EXT_SLIST)
+  endif (HAVE_EXT_SLIST)
+
   if (HAVE_SYMBOLIZE)
     add_executable (symbolize_unittest
       src/symbolize_unittest.cc
@@ -584,13 +684,6 @@ if (BUILD_TESTING)
 
   target_link_libraries (demangle_unittest PRIVATE glog_test)
 
-  add_test (NAME demangle COMMAND demangle_unittest)
-
-  if (HAVE___CXA_DEMANGLE)
-    # Demangle tests use a different (reduced) representation of symbols
-    set_tests_properties (demangle PROPERTIES DISABLED ON)
-  endif (HAVE___CXA_DEMANGLE)
-
   if (HAVE_STACKTRACE)
     add_executable (stacktrace_unittest
       src/stacktrace_unittest.cc
@@ -613,6 +706,7 @@ if (BUILD_TESTING)
     target_link_libraries (signalhandler_unittest PRIVATE glog_test)
   endif (HAVE_STACKTRACE AND HAVE_SYMBOLIZE)
 
+  add_test (NAME demangle COMMAND demangle_unittest)
   add_test (NAME logging COMMAND logging_unittest)
 
   set_tests_properties (logging PROPERTIES TIMEOUT 30)
@@ -665,15 +759,15 @@ if (BUILD_TESTING)
   get_cache_variables (_CACHEVARS)
 
   set (_INITIAL_CACHE
-    ${glog_BINARY_DIR}/test_package_config/glog_package_config_initial_cache.cmake)
+    ${CMAKE_CURRENT_BINARY_DIR}/test_package_config/glog_package_config_initial_cache.cmake)
 
   # Package config test
 
   add_test (NAME cmake_package_config_init COMMAND ${CMAKE_COMMAND}
-    -DTEST_BINARY_DIR=${glog_BINARY_DIR}/test_package_config
+    -DTEST_BINARY_DIR=${CMAKE_CURRENT_BINARY_DIR}/test_package_config
     -DINITIAL_CACHE=${_INITIAL_CACHE}
     -DCACHEVARS=${_CACHEVARS}
-    -P ${glog_SOURCE_DIR}/cmake/TestInitPackageConfig.cmake
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestInitPackageConfig.cmake
   )
 
   add_test (NAME cmake_package_config_generate COMMAND ${CMAKE_COMMAND}
@@ -681,21 +775,21 @@ if (BUILD_TESTING)
     -DGENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
     -DGENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
     -DINITIAL_CACHE=${_INITIAL_CACHE}
-    -DPACKAGE_DIR=${glog_BINARY_DIR}
+    -DPACKAGE_DIR=${CMAKE_CURRENT_BINARY_DIR}
     -DPATH=$ENV{PATH}
-    -DSOURCE_DIR=${glog_SOURCE_DIR}/src/package_config_unittest/working_config
+    -DSOURCE_DIR=${CMAKE_CURRENT_SOURCE_DIR}/src/package_config_unittest/working_config
-    -DTEST_BINARY_DIR=${glog_BINARY_DIR}/test_package_config/working_config
+    -DTEST_BINARY_DIR=${CMAKE_CURRENT_BINARY_DIR}/test_package_config/working_config
-    -P ${glog_SOURCE_DIR}/cmake/TestPackageConfig.cmake
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/TestPackageConfig.cmake
   )
 
   add_test (NAME cmake_package_config_build COMMAND
-    ${CMAKE_COMMAND} --build ${glog_BINARY_DIR}/test_package_config/working_config
+    ${CMAKE_COMMAND} --build ${CMAKE_CURRENT_BINARY_DIR}/test_package_config/working_config
                      --config $<CONFIG>
   )
 
   add_test (NAME cmake_package_config_cleanup COMMAND ${CMAKE_COMMAND} -E
     remove_directory
-    ${glog_BINARY_DIR}/test_package_config
+    ${CMAKE_CURRENT_BINARY_DIR}/test_package_config
   )
 
   # Fixtures setup
@@ -729,7 +823,7 @@ if (BUILD_TESTING)
 
   target_link_libraries (cleanup_with_relative_prefix_unittest PRIVATE glog_test)
 
-  set (CLEANUP_LOG_DIR ${glog_BINARY_DIR}/cleanup_tests)
+  set (CLEANUP_LOG_DIR ${CMAKE_CURRENT_BINARY_DIR}/cleanup_tests)
 
   add_test (NAME cleanup_init COMMAND
     ${CMAKE_COMMAND} -E make_directory ${CLEANUP_LOG_DIR})
@@ -740,21 +834,21 @@ if (BUILD_TESTING)
     -DLOGCLEANUP=$<TARGET_FILE:cleanup_immediately_unittest>
     # NOTE The trailing slash is important
     -DTEST_DIR=${CLEANUP_LOG_DIR}/
-    -P ${glog_SOURCE_DIR}/cmake/RunCleanerTest1.cmake
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/RunCleanerTest1.cmake
-    WORKING_DIRECTORY ${glog_BINARY_DIR})
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
   add_test (NAME cleanup_with_absolute_prefix COMMAND
     ${CMAKE_COMMAND}
     -DLOGCLEANUP=$<TARGET_FILE:cleanup_with_absolute_prefix_unittest>
-    -DTEST_DIR=${glog_BINARY_DIR}/
+    -DTEST_DIR=${CMAKE_CURRENT_BINARY_DIR}/
-    -P ${glog_SOURCE_DIR}/cmake/RunCleanerTest2.cmake
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/RunCleanerTest2.cmake
-    WORKING_DIRECTORY ${glog_BINARY_DIR})
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
   add_test (NAME cleanup_with_relative_prefix COMMAND
     ${CMAKE_COMMAND}
     -DLOGCLEANUP=$<TARGET_FILE:cleanup_with_relative_prefix_unittest>
-    -DTEST_DIR=${glog_BINARY_DIR}/
+    -DTEST_DIR=${CMAKE_CURRENT_BINARY_DIR}/
     -DTEST_SUBDIR=test_subdir/
-    -P ${glog_SOURCE_DIR}/cmake/RunCleanerTest3.cmake
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/RunCleanerTest3.cmake
-    WORKING_DIRECTORY ${glog_BINARY_DIR})
+    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
 
   # Fixtures setup
   set_tests_properties (cleanup_init PROPERTIES FIXTURES_SETUP logcleanuptest)
@@ -764,208 +858,8 @@ if (BUILD_TESTING)
   set_tests_properties (cleanup_immediately PROPERTIES FIXTURES_REQUIRED logcleanuptest)
   set_tests_properties (cleanup_with_absolute_prefix PROPERTIES FIXTURES_REQUIRED logcleanuptest)
   set_tests_properties (cleanup_with_relative_prefix PROPERTIES FIXTURES_REQUIRED logcleanuptest)
-
-  add_executable (striplog0_unittest
-    src/striplog_unittest.cc
-  )
-  target_compile_definitions (striplog0_unittest PRIVATE GOOGLE_STRIP_LOG=0)
-  target_link_libraries (striplog0_unittest PRIVATE glog_test)
-
-  add_test (NAME striplog0 COMMAND striplog0_unittest)
-
-  add_executable (striplog2_unittest
-    src/striplog_unittest.cc
-  )
-  target_compile_definitions (striplog2_unittest PRIVATE GOOGLE_STRIP_LOG=2)
-  target_link_libraries (striplog2_unittest PRIVATE glog_test)
-
-  add_test (NAME striplog2 COMMAND striplog2_unittest)
-
-  add_executable (striplog10_unittest
-    src/striplog_unittest.cc
-  )
-  target_compile_definitions (striplog10_unittest PRIVATE GOOGLE_STRIP_LOG=10)
-  target_link_libraries (striplog10_unittest PRIVATE glog_test)
-
-  add_test (NAME striplog10 COMMAND striplog10_unittest)
-
-  set_tests_properties (
-    striplog0
-    striplog2
-    striplog10
-    PROPERTIES WILL_FAIL ON
-  )
-
-  add_test (NAME log_severity_constants COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config $<CONFIG>
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/log_severity_unittest"
-    "${glog_BINARY_DIR}/Tests/log_severity_constants"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_log_severity_constants
-    --build-options
-    -DCMAKE_BUILD_TYPE=$<CONFIG>
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
-    -DCMAKE_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
-    -Dglog_DIR=${glog_BINARY_DIR}
-  )
-  set_tests_properties (log_severity_constants PROPERTIES
-    PASS_REGULAR_EXPRESSION "COMPACT_GOOGLE_LOG_[1-3]"
-  )
-
-  add_test (NAME log_severity_conversion COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config $<CONFIG>
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/log_severity_unittest"
-    "${glog_BINARY_DIR}/Tests/log_severity_conversion"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_log_severity_conversion
-    --build-options
-    -DCMAKE_BUILD_TYPE=$<CONFIG>
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
-    -DCMAKE_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
-    -Dglog_DIR=${glog_BINARY_DIR}
-  )
-
-  if (CMAKE_COMPILER_IS_GNUCXX)
-    set_tests_properties (log_severity_conversion PROPERTIES
-      PASS_REGULAR_EXPRESSION "error: invalid conversion from (‘|')int(’|')"
-    )
-  elseif (CMAKE_CXX_COMPILER_ID MATCHES Clang)
-    set_tests_properties (log_severity_conversion PROPERTIES
-      PASS_REGULAR_EXPRESSION "no known conversion from 'int'"
-    )
-  elseif (MSVC)
-    set_tests_properties (log_severity_conversion PROPERTIES
-      PASS_REGULAR_EXPRESSION "error C2440"
-    )
-  else (CMAKE_COMPILER_IS_GNUCXX)
-    message (AUTHOR_WARNING
-      "Unsupported C++ compiler ${CMAKE_CXX_COMPILER_ID}: "
-      "log_severity_conversion test will be disabled"
-    )
-    set_tests_properties (log_severity_conversion DISABLED ON)
-  endif (CMAKE_COMPILER_IS_GNUCXX)
-
-  add_test (NAME includes_logging COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config $<CONFIG>
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/includes_unittest"
-    "${glog_BINARY_DIR}/Tests/includes_logging"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_includes_logging
-    --build-options
-    -DCMAKE_BUILD_TYPE=$<CONFIG>
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
-    -DCMAKE_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
-    -Dglog_DIR=${glog_BINARY_DIR}
-  )
-
-  add_test (NAME includes_vlog_is_on COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config $<CONFIG>
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/includes_unittest"
-    "${glog_BINARY_DIR}/Tests/includes_vlog_is_on"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_includes_vlog_is_on
-    --build-options
-    -DCMAKE_BUILD_TYPE=$<CONFIG>
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
-    -DCMAKE_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
-    -Dglog_DIR=${glog_BINARY_DIR}
-  )
-
-  add_test (NAME includes_raw_logging COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config $<CONFIG>
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/includes_unittest"
-    "${glog_BINARY_DIR}/Tests/includes_raw_logging"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_includes_raw_logging
-    --build-options
-    -DCMAKE_BUILD_TYPE=$<CONFIG>
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
-    -DCMAKE_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
-    -Dglog_DIR=${glog_BINARY_DIR}
-  )
-
-  add_test (NAME includes_stl_logging COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config $<CONFIG>
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/includes_unittest"
-    "${glog_BINARY_DIR}/Tests/includes_stl_logging"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_includes_stl_logging
-    --build-options
-    -DCMAKE_BUILD_TYPE=$<CONFIG>
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_GENERATOR_PLATFORM=${CMAKE_GENERATOR_PLATFORM}
-    -DCMAKE_GENERATOR_TOOLSET=${CMAKE_GENERATOR_TOOLSET}
-    -Dglog_DIR=${glog_BINARY_DIR}
-  )
-
-  add_test (NAME dcheck_on COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config Debug
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/dcheck_unittest"
-    "${glog_BINARY_DIR}/Tests/dcheck_on"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
-    --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_dcheck
-    --build-options
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON
-    -Dglog_DIR=${glog_BINARY_DIR}
-    --test-command glog_dcheck
-  )
-  set_tests_properties (dcheck_on PROPERTIES
-    DISABLED $<NOT:$<CONFIG:Debug,RelWithDebInfo>>
-    ENVIRONMENT_MODIFICATION "PATH=path_list_prepend:$<TARGET_FILE_DIR:glog>"
-    PASS_REGULAR_EXPRESSION "Assert failed: false"
-  )
-
-  add_test (NAME dcheck_off COMMAND ${CMAKE_CTEST_COMMAND}
-    --build-config Release
-    --build-and-test
-    "${glog_SOURCE_DIR}/src/dcheck_unittest"
-    "${glog_BINARY_DIR}/Tests/dcheck_off"
-    --build-generator ${CMAKE_GENERATOR}
-    --build-generator-platform "${CMAKE_GENERATOR_PLATFORM}"
-    --build-generator-toolset "${CMAKE_GENERATOR_TOOLSET}"
-    --build-makeprogram ${CMAKE_MAKE_PROGRAM}
-    --build-target glog_dcheck
-    --build-options
-    -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-    -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON
-    -Dglog_DIR=${glog_BINARY_DIR}
-    --test-command glog_dcheck
-  )
-  # There should be no output
-  set_tests_properties (dcheck_off PROPERTIES
-    DISABLED $<NOT:$<CONFIG:Release,MinSizeRel>>
-    ENVIRONMENT_MODIFICATION "PATH=path_list_prepend:$<TARGET_FILE_DIR:glog>"
-    PASS_REGULAR_EXPRESSION ""
-  )
 endif (BUILD_TESTING)
 
-if (BUILD_EXAMPLES)
-  add_executable (custom_sink_example examples/custom_sink.cc)
-  target_link_libraries (custom_sink_example PRIVATE glog::glog)
-endif (BUILD_EXAMPLES)
-
 install (TARGETS glog
   EXPORT glog-targets
   RUNTIME DESTINATION ${_glog_CMake_BINDIR}
@@ -975,7 +869,7 @@ install (TARGETS glog
 
 if (WITH_PKGCONFIG)
   install (
-    FILES "${glog_BINARY_DIR}/libglog.pc"
+    FILES "${PROJECT_BINARY_DIR}/libglog.pc"
     DESTINATION "${_glog_CMake_LIBDIR}/pkgconfig"
   )
 endif (WITH_PKGCONFIG)
@@ -996,12 +890,12 @@ if (gflags_FOUND)
 endif (gflags_FOUND)
 
 configure_package_config_file (glog-config.cmake.in
-  ${glog_BINARY_DIR}/glog-config.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-config.cmake
   INSTALL_DESTINATION ${_glog_CMake_INSTALLDIR}
   NO_CHECK_REQUIRED_COMPONENTS_MACRO)
 
 write_basic_package_version_file (
-  ${glog_BINARY_DIR}/glog-config-version.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-config-version.cmake
   COMPATIBILITY SameMajorVersion)
 
 export (TARGETS glog NAMESPACE glog:: FILE glog-targets.cmake)
@@ -1019,10 +913,10 @@ get_filename_component (glog_REL_CMake_DATADIR ${glog_REL_CMake_MODULES}
   DIRECTORY)
 
 set (glog_FULL_CMake_DATADIR
-  ${glog_BINARY_DIR}/${_glog_CMake_DATADIR})
+  ${CMAKE_CURRENT_BINARY_DIR}/${_glog_CMake_DATADIR})
 
 configure_file (glog-modules.cmake.in
-  ${glog_BINARY_DIR}/glog-modules.cmake @ONLY)
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-modules.cmake @ONLY)
 
 install (CODE
 "
@@ -1033,10 +927,10 @@ if (NOT IS_ABSOLUTE ${_glog_CMake_INSTALLDIR})
   set (glog_DATADIR_DESTINATION \"\${CMAKE_INSTALL_PREFIX}/\${glog_DATADIR_DESTINATION}\")
 endif (NOT IS_ABSOLUTE ${_glog_CMake_INSTALLDIR})
 
-configure_file (\"${glog_SOURCE_DIR}/glog-modules.cmake.in\"
+configure_file (\"${CMAKE_CURRENT_SOURCE_DIR}/glog-modules.cmake.in\"
-  \"${glog_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/glog-modules.cmake\" @ONLY)
+  \"${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/glog-modules.cmake\" @ONLY)
 file (INSTALL
-  \"${glog_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/glog-modules.cmake\"
+  \"${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/glog-modules.cmake\"
   DESTINATION
   \"\${glog_DATADIR_DESTINATION}\")
 "
@@ -1044,8 +938,8 @@ file (INSTALL
 )
 
 install (FILES
-  ${glog_BINARY_DIR}/glog-config.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-config.cmake
-  ${glog_BINARY_DIR}/glog-config-version.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/glog-config-version.cmake
   DESTINATION ${_glog_CMake_INSTALLDIR})
 
 # Find modules in share/glog/cmake

COPYING

@@ -0,0 +1,65 @@
+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

@@ -1,13 +1,3 @@
-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.

LICENSE.md

@@ -1,27 +0,0 @@
-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

@@ -1,13 +0,0 @@
-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

@@ -7,10 +7,877 @@ 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
 ---------------
 
-Please refer to project's `documentation <https://google.github.io/glog/>`_.
+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>`__, `vcpkg <#vcpkg>`__, and `conan <#conan>`__.
+
+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 = "122fb6b712808ef43fbf80f75c52a21c9760683dae470154f02bddfc61135022",
+       strip_prefix = "glog-0.6.0",
+       urls = ["https://github.com/google/glog/archive/v0.6.0.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.
+
+conan
+~~~~~
+
+You can download and install glog using the `conan
+<https://conan.io>`__ package manager:
+
+.. code:: 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.
+
+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:`nullptr`. To work around this, simply :cpp:`static_cast` :cpp:`nullptr` to
+the type of the desired pointer.
+
+.. code:: cpp
+
+   CHECK_EQ(some_ptr, static_cast<SomeType*>(nullptr));
+
+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:`nullptr` pointers for this macro. They
+treat :cpp:`nullptr` and any non-:cpp:`nullptr` string as not equal. Two :cpp:`nullptr`\
+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 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;
+
+
+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.
+
+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
+     * nullptr 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, 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.
+
+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>`__.
 
 
 .. |Linux Github actions| image:: https://github.com/google/glog/actions/workflows/linux.yml/badge.svg

WORKSPACE

@@ -0,0 +1,18 @@
+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",
+    ],
+)
+
+http_archive(
+    name = "com_github_google_googletest",
+    sha256 = "258f33ab1a8ee17adf48ec65e821d0ea9eafcbedeff6110f9eaed78472e73dde",
+    strip_prefix = "googletest-15460959cbbfa20e66ef0b5ab497367e47fc0a04",
+    urls = ["https://github.com/google/googletest/archive/15460959cbbfa20e66ef0b5ab497367e47fc0a04.tar.gz"],
+)

WORKSPACE.bazel

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

bazel/example/BUILD.bazel

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

bazel/glog.bzl

@@ -25,7 +25,13 @@ expand_template = rule(
     },
 )
 
-def glog_library(with_gflags = 1, **kwargs):
+def dict_union(x, y):
+    z = {}
+    z.update(x)
+    z.update(y)
+    return z
+
+def glog_library(namespace = "google", with_gflags = 1, **kwargs):
     if native.repository_name() != "@":
         repo_name = native.repository_name()[1:]  # Strip the first leading @
         gendir = "$(GENDIR)/external/" + repo_name
@@ -48,8 +54,12 @@ def glog_library(with_gflags = 1, **kwargs):
 
     common_copts = [
         "-std=c++14",
+        "-DGLOG_BAZEL_BUILD",
+        # Inject a C++ namespace.
+        "-DGOOGLE_NAMESPACE='%s'" % namespace,
+        "-DHAVE_STRING_H",
         "-I%s/glog_internal" % gendir,
-    ] + (["-DGLOG_USE_GFLAGS"] if with_gflags else [])
+    ] + (["-DHAVE_LIB_GFLAGS"] if with_gflags else [])
 
     wasm_copts = [
         # Disable warnings that exists in glog.
@@ -57,32 +67,27 @@ def glog_library(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",
-        # NOTE: users could optionally patch -DHAVE_UNWIND off if
+        "-DHAVE__UNWIND_BACKTRACE",
-        # stacktrace dumping is not needed
+        "-DHAVE__UNWIND_GETIP",
-        "-DHAVE_UNWIND",
         # Enable dumping stacktrace upon sigaction.
         "-DHAVE_SIGACTION",
         # For logging.cc.
         "-DHAVE_PREAD",
-        # -DHAVE_MODE_T prevent repeated typedef mode_t leading
+        "-DHAVE___ATTRIBUTE__",
-        # 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",
     ]
@@ -90,30 +95,26 @@ def glog_library(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",
-        "-DGLOG_NO_EXPORT=",
+        "-DHAVE_SNPRINTF",
-        "-DGLOG_USE_WINDOWS_PORT",
         "-DHAVE__CHSIZE_S",
-        "-DHAVE_DBGHELP",
         "-I" + src_windows,
     ]
 
@@ -123,26 +124,25 @@ def glog_library(with_gflags = 1, **kwargs):
     ]
 
     windows_only_srcs = [
+        "src/glog/log_severity.h",
         "src/windows/dirent.h",
         "src/windows/port.cc",
         "src/windows/port.h",
     ]
 
-    gflags_deps = ["@gflags//:gflags"] if with_gflags else []
+    gflags_deps = ["@com_github_gflags_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_DEPRECATED=__declspec(deprecated)",
             "GLOG_NO_ABBREVIATED_SEVERITIES",
-            "GLOG_NO_EXPORT=",
         ],
         "//conditions:default": [
             "GLOG_DEPRECATED=__attribute__((deprecated))",
             "GLOG_EXPORT=__attribute__((visibility(\\\"default\\\")))",
-            "GLOG_NO_EXPORT=__attribute__((visibility(\\\"default\\\")))",
         ],
     })
 
@@ -162,6 +162,7 @@ def glog_library(with_gflags = 1, **kwargs):
         name = "shared_headers",
         srcs = [
             "src/base/commandlineflags.h",
+            "src/base/mutex.h",
             "src/stacktrace.h",
             "src/utilities.h",
         ]
@@ -176,12 +177,9 @@ def glog_library(with_gflags = 1, **kwargs):
             "src/base/googleinit.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",
             "src/stacktrace_powerpc-inl.h",
@@ -191,21 +189,18 @@ def glog_library(with_gflags = 1, **kwargs):
             "src/symbolize.cc",
             "src/symbolize.h",
             "src/utilities.cc",
-            "src/utilities.h",
             "src/vlog_is_on.cc",
         ] + select({
             "@bazel_tools//src/conditions:windows": windows_only_srcs,
             "//conditions:default": [],
         }),
         hdrs = [
-            "src/glog/flags.h",
             "src/glog/log_severity.h",
-            "src/glog/logging.h",
             "src/glog/platform.h",
-            "src/glog/raw_logging.h",
+            ":logging_h",
-            "src/glog/stl_logging.h",
+            ":raw_logging_h",
-            "src/glog/types.h",
+            ":stl_logging_h",
-            "src/glog/vlog_is_on.h",
+            ":vlog_is_on_h",
         ],
         # https://github.com/google/glog/issues/837: Replacing
         # `strip_include_prefix` with `includes` would avoid spamming
@@ -222,10 +217,6 @@ def glog_library(with_gflags = 1, **kwargs):
             "@bazel_tools//src/conditions:windows": [":strip_include_prefix_hack"],
             "//conditions:default": [],
         }),
-        linkopts = select({
-            "@bazel_tools//src/conditions:windows": ["dbghelp.lib"],
-            "//conditions:default": [],
-        }),
         **kwargs
     )
 
@@ -261,7 +252,7 @@ def glog_library(with_gflags = 1, **kwargs):
             copts = final_lib_copts + test_only_copts,
             deps = gflags_deps + [
                 ":glog",
-                "@googletest//:gtest",
+                "@com_github_google_googletest//:gtest",
             ],
             **kwargs
         )
@@ -271,14 +262,11 @@ def glog_library(with_gflags = 1, **kwargs):
     native.cc_library(
         name = "strip_include_prefix_hack",
         hdrs = [
-            "src/glog/flags.h",
             "src/glog/log_severity.h",
-            "src/glog/logging.h",
+            ":logging_h",
-            "src/glog/platform.h",
+            ":raw_logging_h",
-            "src/glog/raw_logging.h",
+            ":stl_logging_h",
-            "src/glog/stl_logging.h",
+            ":vlog_is_on_h",
-            "src/glog/types.h",
-            "src/glog/vlog_is_on.h",
         ],
     )
 
@@ -288,3 +276,51 @@ def glog_library(with_gflags = 1, **kwargs):
         out = "glog_internal/config.h",
         substitutions = {"#cmakedefine": "//cmakedefine"},
     )
+
+    common_config = {
+        "@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___attribute___noinline@": "__attribute__((noinline))",
+        "@ac_cv___attribute___printf_4_5@": "__attribute__((__format__(__printf__, 4, 5)))",
+        "@ac_cv_have___builtin_expect@": "1",
+        "@ac_cv_have_libgflags@": "1" if with_gflags else "0",
+        "@ac_cv_have_mode_t@": "1",
+        "@ac_cv_have_ssize_t@": "1",
+        "@ac_cv_have_systypes_h@": "1",
+        "@ac_cv_have_unistd_h@": "1",
+    })
+
+    windows_config = dict_union(common_config, {
+        "@ac_cv___attribute___noinline@": "",
+        "@ac_cv___attribute___printf_4_5@": "",
+        "@ac_cv_have___builtin_expect@": "0",
+        "@ac_cv_have_libgflags@": "0",
+        "@ac_cv_have_mode_t@": "0",
+        "@ac_cv_have_ssize_t@": "0",
+        "@ac_cv_have_systypes_h@": "0",
+        "@ac_cv_have_unistd_h@": "0",
+    })
+
+    [
+        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/RunCleanerTest1.cmake

@@ -7,20 +7,16 @@ 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 (WIN32)
+if (NOT NUM_FILES EQUAL 1)
-  # On Windows open files cannot be removed and will result in a permission
+  message (SEND_ERROR "Expected 1 log file in log directory but found ${NUM_FILES}")
-  # denied error while unlinking such file. Therefore, the last file will be
+endif (NOT NUM_FILES EQUAL 1)
-  # 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

@@ -7,20 +7,16 @@ 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 (WIN32)
+if (NOT NUM_FILES EQUAL 1)
-  # On Windows open files cannot be removed and will result in a permission
+  message (SEND_ERROR "Expected 1 log file in build directory ${TEST_DIR} but found ${NUM_FILES}")
-  # denied error while unlinking such file. Therefore, the last file will be
+endif (NOT NUM_FILES EQUAL 1)
-  # 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

@@ -10,23 +10,19 @@ 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 (WIN32)
+if (NOT NUM_FILES EQUAL 1)
-  # On Windows open files cannot be removed and will result in a permission
+  message (SEND_ERROR "Expected 1 log file in build directory ${TEST_DIR}${TEST_SUBDIR} but found ${NUM_FILES}")
-  # denied error while unlinking such file. Therefore, the last file will be
+endif (NOT NUM_FILES EQUAL 1)
-  # 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})

codecov.yml

@@ -1,11 +1,4 @@
-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

@@ -1,66 +0,0 @@
-# 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

@@ -1,50 +0,0 @@
-# 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

@@ -1,73 +0,0 @@
-# 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

@@ -1,93 +0,0 @@
-# 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

@@ -1,30 +0,0 @@
-# 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

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

docs/log_cleaner.md

@@ -1,24 +0,0 @@
-# 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

@@ -1,20 +0,0 @@
-# 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

@@ -1,424 +0,0 @@
-# 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

@@ -1,8 +0,0 @@
-{% 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

@@ -1,34 +0,0 @@
-# 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

@@ -1,6 +0,0 @@
-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

@@ -1,84 +0,0 @@
-# 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

@@ -1,57 +0,0 @@
-# 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

@@ -1,24 +0,0 @@
-# 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

@@ -1,44 +0,0 @@
-# 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

@@ -1,71 +0,0 @@
-// 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

@@ -1,7 +1,6 @@
 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

glog-config.cmake.in

@@ -7,8 +7,6 @@ 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

@@ -1,123 +0,0 @@
----
-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

@@ -48,66 +48,67 @@
 #ifndef BASE_COMMANDLINEFLAGS_H__
 #define BASE_COMMANDLINEFLAGS_H__
 
-#include <cstdlib>  // for getenv
+#include "config.h"
-#include <cstring>  // for memchr
+#include <cstdlib>               // for getenv
+#include <cstring>               // for memchr
 #include <string>
 
-#include "config.h"
+#ifdef HAVE_LIB_GFLAGS
 
-#ifdef GLOG_USE_GFLAGS
+#include <gflags/gflags.h>
-
-#  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 {                         \
+  namespace fL##shorttype {                         \
-      extern GLOG_EXPORT type FLAGS_##name;           \
+    extern GLOG_EXPORT type FLAGS_##name;           \
-    }                                                 \
+  }                                                 \
-    using fL##shorttype::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 {                                        \
+  namespace fL##shorttype {                                        \
-      GLOG_EXPORT type FLAGS_##name(value);                          \
+    GLOG_EXPORT type FLAGS_##name(value);                          \
-      char FLAGS_no##name;                                           \
+    char FLAGS_no##name;                                           \
-    }                                                                \
+  }                                                                \
-    using fL##shorttype::FLAGS_##name
+  using fL##shorttype::FLAGS_##name
 
 // bool specialization
-#  define DECLARE_bool(name) DECLARE_VARIABLE(bool, B, name, bool)
+#define DECLARE_bool(name) \
-#  define DEFINE_bool(name, value, meaning) \
+  DECLARE_VARIABLE(bool, B, name, bool)
-    DEFINE_VARIABLE(bool, B, name, value, meaning, bool)
+#define DEFINE_bool(name, value, meaning) \
+  DEFINE_VARIABLE(bool, B, name, value, meaning, bool)
 
 // int32 specialization
-#  define DECLARE_int32(name) DECLARE_VARIABLE(google::int32, I, name, int32)
+#define DECLARE_int32(name) \
-#  define DEFINE_int32(name, value, meaning) \
+  DECLARE_VARIABLE(GOOGLE_NAMESPACE::int32, I, name, int32)
-    DEFINE_VARIABLE(google::int32, I, name, value, meaning, int32)
+#define DEFINE_int32(name, value, meaning) \
+  DEFINE_VARIABLE(GOOGLE_NAMESPACE::int32, I, name, value, meaning, int32)
 
 // uint32 specialization
-#  ifndef DECLARE_uint32
+#ifndef DECLARE_uint32
-#    define DECLARE_uint32(name) \
+#define DECLARE_uint32(name) \
-      DECLARE_VARIABLE(google::uint32, U, name, uint32)
+  DECLARE_VARIABLE(GOOGLE_NAMESPACE::uint32, U, name, uint32)
-#  endif  // DECLARE_uint64
+#endif // DECLARE_uint64
-#  define DEFINE_uint32(name, value, meaning) \
+#define DEFINE_uint32(name, value, meaning) \
-    DEFINE_VARIABLE(google::uint32, U, name, value, meaning, uint32)
+  DEFINE_VARIABLE(GOOGLE_NAMESPACE::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 {                               \
+  namespace fLS {                               \
-    extern GLOG_EXPORT std::string& FLAGS_##name; \
+  extern GLOG_EXPORT std::string& FLAGS_##name; \
-    }                                             \
+  }                                             \
-    using fLS::FLAGS_##name
+  using fLS::FLAGS_##name
-#  define DEFINE_string(name, value, meaning)                   \
+#define DEFINE_string(name, value, meaning)                   \
-    namespace fLS {                                             \
+  namespace fLS {                                             \
-    std::string FLAGS_##name##_buf(value);                      \
+  std::string FLAGS_##name##_buf(value);                      \
-    GLOG_EXPORT std::string& FLAGS_##name = FLAGS_##name##_buf; \
+  GLOG_EXPORT std::string& FLAGS_##name = FLAGS_##name##_buf; \
-    char FLAGS_no##name;                                        \
+  char FLAGS_no##name;                                        \
-    }                                                           \
+  }                                                           \
-    using fLS::FLAGS_##name
+  using fLS::FLAGS_##name
 
-#endif  // GLOG_USE_GFLAGS
+#endif  // HAVE_LIB_GFLAGS
 
 // Define GLOG_DEFINE_* using DEFINE_* . By using these macros, we
 // have GLOG_* environ variables even if we have gflags installed.
@@ -131,7 +132,8 @@
 // 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)     \

src/base/googleinit.h

@@ -1,10 +1,10 @@
 // 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
@@ -14,7 +14,7 @@
 //     * 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
@@ -36,14 +36,16 @@
 class GoogleInitializer {
  public:
   using void_function = void (*)();
-  GoogleInitializer(const char*, void_function f) { f(); }
+  GoogleInitializer(const char*, void_function f) {
+    f();
+  }
 };
 
-#define REGISTER_MODULE_INITIALIZER(name, body)       \
+#define REGISTER_MODULE_INITIALIZER(name, body)                 \
-  namespace {                                         \
+  namespace {                                                   \
-  static void google_init_module_##name() { body; }   \
+    static void google_init_module_##name () { body; }          \
-  GoogleInitializer google_initializer_module_##name( \
+    GoogleInitializer google_initializer_module_##name(#name,   \
-      #name, google_init_module_##name);              \
+            google_init_module_##name);                         \
   }
 
 #endif /* _GOOGLEINIT_H */

src/base/mutex.h

@@ -0,0 +1,333 @@
+// 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>
+using MutexType = pthread_rwlock_t;
+#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.
+  explicit Mutex(Mutex * /*ignored*/) {}
+  // Disallow "evil" constructors
+  Mutex(const Mutex &) = delete;
+  void operator=(const Mutex &) = delete;
+};
+
+// 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_, nullptr) != 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_, nullptr) != 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 &) = delete;
+  void operator=(const MutexLock &) = delete;
+};
+
+// 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 &) = delete;
+  void operator=(const ReaderMutexLock &) = delete;
+};
+
+class WriterMutexLock {
+ public:
+  explicit WriterMutexLock(Mutex *mu) : mu_(mu) { mu_->WriterLock(); }
+  ~WriterMutexLock() { mu_->WriterUnlock(); }
+ private:
+  Mutex * const mu_;
+  // Disallow "evil" constructors
+  WriterMutexLock(const WriterMutexLock &) = delete;
+  void operator=(const WriterMutexLock &) = delete;
+};
+
+// 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) 2024, Google Inc.
+// Copyright (c) 2021, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -32,17 +32,17 @@
 #include "glog/raw_logging.h"
 #include "googletest.h"
 
-#ifdef GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
-#  include <gflags/gflags.h>
+#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::glog_testing::ScopedMockLog;
+using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
 using testing::_;
 using testing::AllOf;
 using testing::AnyNumber;
@@ -52,12 +52,11 @@ using testing::StrictMock;
 using testing::StrNe;
 #endif
 
-using namespace google;
+using namespace GOOGLE_NAMESPACE;
 
 TEST(CleanImmediately, logging) {
-  using namespace std::chrono_literals;
   google::SetLogFilenameExtension(".foobar");
-  google::EnableLogCleaner(0h);
+  google::EnableLogCleaner(0);
 
   for (unsigned i = 0; i < 1000; ++i) {
     LOG(INFO) << "cleanup test";
@@ -66,10 +65,10 @@ 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 GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
   // Make sure stderr is not buffered as stderr seems to be buffered

src/cleanup_with_absolute_prefix_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2021, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -32,17 +32,17 @@
 #include "glog/raw_logging.h"
 #include "googletest.h"
 
-#ifdef GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
-#  include <gflags/gflags.h>
+#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::glog_testing::ScopedMockLog;
+using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
 using testing::_;
 using testing::AllOf;
 using testing::AnyNumber;
@@ -52,11 +52,10 @@ using testing::StrictMock;
 using testing::StrNe;
 #endif
 
-using namespace google;
+using namespace GOOGLE_NAMESPACE;
 
 TEST(CleanImmediatelyWithAbsolutePrefix, logging) {
-  using namespace std::chrono_literals;
+  google::EnableLogCleaner(0);
-  google::EnableLogCleaner(0h);
   google::SetLogFilenameExtension(".barfoo");
   google::SetLogDestination(GLOG_INFO, "test_cleanup_");
 
@@ -71,10 +70,10 @@ 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 GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
   // Make sure stderr is not buffered as stderr seems to be buffered

src/cleanup_with_relative_prefix_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2021, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -32,17 +32,17 @@
 #include "glog/raw_logging.h"
 #include "googletest.h"
 
-#ifdef GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
-#  include <gflags/gflags.h>
+#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::glog_testing::ScopedMockLog;
+using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
 using testing::_;
 using testing::AllOf;
 using testing::AnyNumber;
@@ -52,11 +52,10 @@ using testing::StrictMock;
 using testing::StrNe;
 #endif
 
-using namespace google;
+using namespace GOOGLE_NAMESPACE;
 
 TEST(CleanImmediatelyWithRelativePrefix, logging) {
-  using namespace std::chrono_literals;
+  google::EnableLogCleaner(0);
-  google::EnableLogCleaner(0h);
   google::SetLogFilenameExtension(".relativefoo");
   google::SetLogDestination(GLOG_INFO, "test_subdir/test_cleanup_");
 
@@ -67,10 +66,10 @@ 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 GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
   // Make sure stderr is not buffered as stderr seems to be buffered

src/config.h.cmake.in

@@ -1,9 +1,15 @@
 #ifndef GLOG_CONFIG_H
 #define GLOG_CONFIG_H
 
+/* 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
 
@@ -19,6 +25,12 @@
 /* Define to 1 if you have the <glob.h> header file. */
 #cmakedefine HAVE_GLOB_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
 
@@ -28,11 +40,20 @@
 /* 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 you have the 'pread' function */
 #cmakedefine HAVE_PREAD
 
-/* Define if you have the 'posix_fadvise' function in <fcntl.h> */
+/* Define if you have POSIX threads libraries and header files. */
-#cmakedefine HAVE_POSIX_FADVISE
+#cmakedefine HAVE_PTHREAD
 
 /* Define to 1 if you have the <pwd.h> header file. */
 #cmakedefine HAVE_PWD_H
@@ -40,26 +61,26 @@
 /* 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 <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 <elf.h> header file. */
+/* Define to 1 if you have the <sys/stat.h> header file. */
-#cmakedefine HAVE_ELF_H
+#cmakedefine HAVE_SYS_STAT_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
@@ -68,7 +89,7 @@
 #cmakedefine HAVE_SYS_TIME_H
 
 /* Define to 1 if you have the <sys/types.h> header file. */
-#cmakedefine HAVE_SYS_TYPES_H
+#cmakedefine HAVE_SYS_TYPES_H ${HAVE_SYS_TYPES_H}
 
 /* Define to 1 if you have the <sys/ucontext.h> header file. */
 #cmakedefine HAVE_SYS_UCONTEXT_H
@@ -85,11 +106,20 @@
 /* Define to 1 if you have the <unistd.h> header file. */
 #cmakedefine HAVE_UNISTD_H ${HAVE_UNISTD_H}
 
-/* define if you have unwind */
+/* Define if you linking to _Unwind_Backtrace is possible. */
-#cmakedefine HAVE_UNWIND
+#cmakedefine HAVE__UNWIND_BACKTRACE
 
-/* define if you have libunwind */
+/* Define if you linking to _Unwind_GetIP is possible. */
-#cmakedefine HAVE_LIBUNWIND
+#cmakedefine HAVE__UNWIND_GETIP
+
+/* 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 symbolize support is available */
 #cmakedefine HAVE_SYMBOLIZE
@@ -103,11 +133,9 @@
 /* define if _chsize_s is available in io.h */
 #cmakedefine HAVE__CHSIZE_S
 
-/* define if ssize_t is defined */
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
-#cmakedefine HAVE_SSIZE_T
+   */
-
+#cmakedefine LT_OBJDIR
-/* define if mode_t is defined */
-#cmakedefine HAVE_MODE_T
 
 /* How to access the PC from a struct ucontext */
 #cmakedefine PC_FROM_UCONTEXT ${PC_FROM_UCONTEXT}
@@ -115,6 +143,10 @@
 /* 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}
 
@@ -124,19 +156,25 @@
 /* Define if thread-local storage is enabled. */
 #cmakedefine GLOG_THREAD_LOCAL_STORAGE
 
-/* define if abi::__cxa_demangle is available in cxxabi.h */
+#ifdef GLOG_BAZEL_BUILD
-#cmakedefine HAVE___CXA_DEMANGLE
 
-/* define if __argv is available in cstdlib */
+/* TODO(rodrigoq): remove this workaround once bazel#3979 is resolved:
-#cmakedefine HAVE___ARGV
+ * https://github.com/bazelbuild/bazel/issues/3979 */
+#define _START_GOOGLE_NAMESPACE_ namespace GOOGLE_NAMESPACE {
 
-/* define if __progname is available */
+#define _END_GOOGLE_NAMESPACE_ }
-#cmakedefine HAVE___PROGNAME
 
-/* define if getprogname is available in cstdlib */
+#else
-#cmakedefine HAVE_GETPROGNAME
 
-/* define if program_invocation_short_name is available in cerrno */
+/* Stops putting the code inside the Google namespace */
-#cmakedefine HAVE_PROGRAM_INVOCATION_SHORT_NAME
+#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}
 
 #endif  // GLOG_CONFIG_H

src/dcheck_unittest/CMakeLists.txt

@@ -1,7 +0,0 @@
-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

@@ -1,53 +0,0 @@
-// 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

@@ -67,28 +67,19 @@
 // C++ ABI in the future.
 //
 
-#ifndef GLOG_INTERNAL_DEMANGLE_H
+#ifndef BASE_DEMANGLE_H_
-#define GLOG_INTERNAL_DEMANGLE_H
+#define BASE_DEMANGLE_H_
 
-#include <cstddef>
+#include "config.h"
+#include "glog/logging.h"
 
-#if defined(GLOG_USE_GLOG_EXPORT)
+_START_GOOGLE_NAMESPACE_
-#  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_NO_EXPORT Demangle(const char* mangled, char* out, size_t out_size);
+bool GLOG_EXPORT Demangle(const char *mangled, char *out, size_t out_size);
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google
 
-#endif  // GLOG_INTERNAL_DEMANGLE_H
+#endif  // BASE_DEMANGLE_H_

src/demangle_unittest.cc

@@ -42,8 +42,8 @@
 #include "googletest.h"
 #include "utilities.h"
 
-#ifdef GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
-#  include <gflags/gflags.h>
+#include <gflags/gflags.h>
 using namespace GFLAGS_NAMESPACE;
 #endif
 
@@ -51,10 +51,10 @@ GLOG_DEFINE_bool(demangle_filter, false,
                  "Run demangle_unittest in filter mode");
 
 using namespace std;
-using namespace google;
+using namespace GOOGLE_NAMESPACE;
 
 // 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;
@@ -65,25 +65,28 @@ 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(
-               DemangleIt("?func@Foo@@SAXH@Z"));
+    "public: static void __cdecl Foo::func(int)",
-  EXPECT_STREQ("public: static void __cdecl Foo::func(int)",
+    DemangleIt("?func@Foo@@SAXH@Z"));
-               DemangleIt("@ILT+1105(?func@Foo@@SAXH@Z)"));
+  EXPECT_STREQ(
-  EXPECT_STREQ("int __cdecl foobarArray(int * const)",
+    "public: static void __cdecl Foo::func(int)",
-               DemangleIt("?foobarArray@@YAHQAH@Z"));
+    DemangleIt("@ILT+1105(?func@Foo@@SAXH@Z)"));
+  EXPECT_STREQ(
+    "int __cdecl foobarArray(int * const)",
+    DemangleIt("?foobarArray@@YAHQAH@Z"));
 }
-#  endif
+#endif
 
 #else
 
 // Test corner cases of boundary conditions.
 TEST(Demangle, CornerCases) {
   const size_t size = 10;
-  char tmp[size] = {0};
+  char tmp[size] = { 0 };
-  const char* demangled = "foobar()";
+  const char *demangled = "foobar()";
-  const char* mangled = "_Z6foobarv";
+  const char *mangled = "_Z6foobarv";
   EXPECT_TRUE(Demangle(mangled, tmp, sizeof(tmp)));
   // sizeof("foobar()") == size - 1
   EXPECT_STREQ(demangled, tmp);
@@ -144,11 +147,11 @@ TEST(Demangle, FromFile) {
 
 #endif
 
-int main(int argc, char** argv) {
+int main(int argc, char **argv) {
-  InitGoogleTest(&argc, argv);
+#ifdef HAVE_LIB_GFLAGS
-#ifdef GLOG_USE_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
 #endif
+  InitGoogleTest(&argc, argv);
 
   FLAGS_logtostderr = true;
   InitGoogleLogging(argv[0]);

src/demangle_unittest.txt

@@ -143,10 +143,3 @@ _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

@@ -1,158 +0,0 @@
-// 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

@@ -18,7 +18,7 @@
 
 #include "demangle.h"
 
-extern "C" int LLVMFuzzerTestOneInput(const unsigned char* Data,
+extern "C" int LLVMFuzzerTestOneInput(const unsigned char *Data,
                                       unsigned Size) {
   if (Size >= 4095) {
     return 0;

src/glog/flags.h

@@ -1,191 +0,0 @@
-// 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) 2024, Google Inc.
+// Copyright (c) 2023, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -30,16 +30,6 @@
 #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:
@@ -58,43 +48,27 @@ namespace google {
 // 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.
+using LogSeverity = int;
 
-enum LogSeverity {
+const int GLOG_INFO = 0, GLOG_WARNING = 1, GLOG_ERROR = 2, GLOG_FATAL = 3,
-  GLOG_INFO = 0,
+  NUM_SEVERITIES = 4;
-  GLOG_WARNING = 1,
-  GLOG_ERROR = 2,
-  GLOG_FATAL = 3,
 #ifndef GLOG_NO_ABBREVIATED_SEVERITIES
-#  ifdef ERROR
+# ifdef ERROR
 #  error ERROR macro is defined. Define GLOG_NO_ABBREVIATED_SEVERITIES before including logging.h. See the document for detail.
-#  endif
+# endif
-  INFO = GLOG_INFO,
+const int INFO = GLOG_INFO, WARNING = GLOG_WARNING,
-  WARNING = GLOG_WARNING,
+  ERROR = GLOG_ERROR, FATAL = GLOG_FATAL;
-  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
@@ -115,12 +89,10 @@ constexpr int NUM_SEVERITIES = 4;
 //
 #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) 2024, Google Inc.
+// Copyright (c) 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -35,27 +35,26 @@
 #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__)
-#  define GLOG_OS_LINUX
+#ifndef GLOG_OS_LINUX
-#  if defined(__ANDROID__)
+#define GLOG_OS_LINUX
-#    define GLOG_OS_ANDROID
+#endif
-#  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
+#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.
 #endif
 
-#endif  // GLOG_PLATFORM_H
+#endif // GLOG_PLATFORM_H

src/glog/raw_logging.h.in

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -36,18 +36,17 @@
 #ifndef GLOG_RAW_LOGGING_H
 #define GLOG_RAW_LOGGING_H
 
-#if defined(GLOG_USE_GLOG_EXPORT)
+#include <ctime>
-#  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
 
+@ac_google_start_namespace@
 #include "glog/log_severity.h"
+#include "glog/logging.h"
 #include "glog/vlog_is_on.h"
 
-namespace google {
+#if defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wvariadic-macros"
+#endif
 
 // This is similar to LOG(severity) << format... and VLOG(level) << format..,
 // but
@@ -63,101 +62,108 @@ namespace google {
 // These will print an almost standard log lines like this to stderr only:
 //   E20200821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
 //   I20200821 211317 file.cc:142] RAW: status is 20
-#define RAW_LOG(severity, ...)         \
+#define RAW_LOG(severity, ...) \
-  do {                                 \
+  do { \
-    switch (google::GLOG_##severity) { \
+    switch (@ac_google_namespace@::GLOG_ ## severity) {  \
-      case 0:                          \
+      case 0: \
-        RAW_LOG_INFO(__VA_ARGS__);     \
+        RAW_LOG_INFO(__VA_ARGS__); \
-        break;                         \
+        break; \
-      case 1:                          \
+      case 1: \
-        RAW_LOG_WARNING(__VA_ARGS__);  \
+        RAW_LOG_WARNING(__VA_ARGS__); \
-        break;                         \
+        break; \
-      case 2:                          \
+      case 2: \
-        RAW_LOG_ERROR(__VA_ARGS__);    \
+        RAW_LOG_ERROR(__VA_ARGS__); \
-        break;                         \
+        break; \
-      case 3:                          \
+      case 3: \
-        RAW_LOG_FATAL(__VA_ARGS__);    \
+        RAW_LOG_FATAL(__VA_ARGS__); \
-        break;                         \
+        break; \
-      default:                         \
+      default: \
-        break;                         \
+        break; \
-    }                                  \
+    } \
   } while (0)
 
 // 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 {                              \
+  do { \
-      if (VLOG_IS_ON(verboselevel)) { \
+    if (VLOG_IS_ON(verboselevel)) { \
-        RAW_LOG_INFO(__VA_ARGS__);    \
+      RAW_LOG_INFO(__VA_ARGS__); \
-      }                               \
+    } \
-    } while (0)
+  } while (0)
 #else
-#  define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
+#define RAW_VLOG(verboselevel, ...) RawLogStub__(0, __VA_ARGS__)
-#endif  // STRIP_LOG == 0
+#endif // STRIP_LOG == 0
 
 #if !defined(STRIP_LOG) || STRIP_LOG == 0
-#  define RAW_LOG_INFO(...) \
+#define RAW_LOG_INFO(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_INFO, \
-    google::RawLog__(google::GLOG_INFO, __FILE__, __LINE__, __VA_ARGS__)
+                                   __FILE__, __LINE__, __VA_ARGS__)
 #else
-#  define RAW_LOG_INFO(...) google::RawLogStub__(0, __VA_ARGS__)
+#define RAW_LOG_INFO(...) @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__)
-#endif  // STRIP_LOG == 0
+#endif // STRIP_LOG == 0
 
 #if !defined(STRIP_LOG) || STRIP_LOG <= 1
-#  define RAW_LOG_WARNING(...) \
+#define RAW_LOG_WARNING(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_WARNING,   \
-    google::RawLog__(google::GLOG_WARNING, __FILE__, __LINE__, __VA_ARGS__)
+                                      __FILE__, __LINE__, __VA_ARGS__)
 #else
-#  define RAW_LOG_WARNING(...) google::RawLogStub__(0, __VA_ARGS__)
+#define RAW_LOG_WARNING(...) @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__)
-#endif  // STRIP_LOG <= 1
+#endif // STRIP_LOG <= 1
 
 #if !defined(STRIP_LOG) || STRIP_LOG <= 2
-#  define RAW_LOG_ERROR(...) \
+#define RAW_LOG_ERROR(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_ERROR,       \
-    google::RawLog__(google::GLOG_ERROR, __FILE__, __LINE__, __VA_ARGS__)
+                                    __FILE__, __LINE__, __VA_ARGS__)
 #else
-#  define RAW_LOG_ERROR(...) google::RawLogStub__(0, __VA_ARGS__)
+#define RAW_LOG_ERROR(...) @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__)
-#endif  // STRIP_LOG <= 2
+#endif // STRIP_LOG <= 2
 
 #if !defined(STRIP_LOG) || STRIP_LOG <= 3
-#  define RAW_LOG_FATAL(...) \
+#define RAW_LOG_FATAL(...) @ac_google_namespace@::RawLog__(@ac_google_namespace@::GLOG_FATAL,       \
-    google::RawLog__(google::GLOG_FATAL, __FILE__, __LINE__, __VA_ARGS__)
+                                    __FILE__, __LINE__, __VA_ARGS__)
 #else
-#  define RAW_LOG_FATAL(...)                \
+#define RAW_LOG_FATAL(...) \
-    do {                                    \
+  do { \
-      google::RawLogStub__(0, __VA_ARGS__); \
+    @ac_google_namespace@::RawLogStub__(0, __VA_ARGS__);        \
-      exit(EXIT_FAILURE);                   \
+    exit(EXIT_FAILURE); \
-    } while (0)
+  } while (0)
-#endif  // STRIP_LOG <= 3
+#endif // STRIP_LOG <= 3
 
 // Similar to CHECK(condition) << message,
 // but for low-level modules: we use only RAW_LOG that does not allocate memory.
 // We do not want to provide args list here to encourage this usage:
 //   if (!cond)  RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
 // so that the args are not computed when not needed.
-#define RAW_CHECK(condition, message)                             \
+#define RAW_CHECK(condition, message)                                   \
-  do {                                                            \
+  do {                                                                  \
-    if (!(condition)) {                                           \
+    if (!(condition)) {                                                 \
-      RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
+      RAW_LOG(FATAL, "Check %s failed: %s", #condition, message);       \
-    }                                                             \
+    }                                                                   \
   } while (0)
 
 // Debug versions of RAW_LOG and RAW_CHECK
 #ifndef NDEBUG
 
-#  define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
+#define RAW_DLOG(severity, ...) RAW_LOG(severity, __VA_ARGS__)
-#  define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
+#define RAW_DCHECK(condition, message) RAW_CHECK(condition, message)
 
 #else  // NDEBUG
 
-#  define RAW_DLOG(severity, ...) \
+#define RAW_DLOG(severity, ...)                                 \
-    while (false) RAW_LOG(severity, __VA_ARGS__)
+  while (false)                                                 \
-#  define RAW_DCHECK(condition, message) \
+    RAW_LOG(severity, __VA_ARGS__)
-    while (false) RAW_CHECK(condition, message)
+#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
@@ -165,12 +171,8 @@ 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, ...)
-#if defined(__has_attribute)
+    @ac_cv___attribute___printf_4_5@;
-#  if __has_attribute(used)
+
-    __attribute__((__format__(__printf__, 4, 5)))
+@ac_google_end_namespace@
-#  endif
-#endif
-    ;
-}  // namespace google
 
 #endif  // GLOG_RAW_LOGGING_H

src/glog/stl_logging.h.in

@@ -1,4 +1,4 @@
-// Copyright (c) 2023, Google Inc.
+// Copyright (c) 2003, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -35,9 +35,17 @@
 // 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 GLOG_STL_LOGGING_H
+#ifndef UTIL_GTL_STL_LOGGING_INL_H_
-#define GLOG_STL_LOGGING_H
+#define UTIL_GTL_STL_LOGGING_INL_H_
 
 #include <deque>
 #include <list>
@@ -52,78 +60,81 @@
 // 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);
 
-namespace google {
+@ac_google_start_namespace@
 
-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::vector) OUTPUT_TWO_ARG_CONTAINER(std::deque)
-OUTPUT_TWO_ARG_CONTAINER(std::deque)
+        OUTPUT_TWO_ARG_CONTAINER(std::list)
-OUTPUT_TWO_ARG_CONTAINER(std::list)
+
 #undef OUTPUT_TWO_ARG_CONTAINER
 
-#define OUTPUT_THREE_ARG_CONTAINER(Sequence)                         \
+#define OUTPUT_THREE_ARG_CONTAINER(Sequence) \
-  template <class T1, class T2, class T3>                            \
+template<class T1, class T2, class T3> \
-  inline std::ostream& operator<<(std::ostream& out,                 \
+inline std::ostream& operator<<(std::ostream& out, \
-                                  const Sequence<T1, T2, T3>& seq) { \
+                                const Sequence<T1, T2, T3>& seq) { \
-    google::PrintSequence(out, seq.begin(), seq.end());              \
+  @ac_google_namespace@::PrintSequence(out, seq.begin(), seq.end()); \
-    return out;                                                      \
+  return out; \
-  }
+}
 
-OUTPUT_THREE_ARG_CONTAINER(std::set)
+            OUTPUT_THREE_ARG_CONTAINER(std::set) OUTPUT_THREE_ARG_CONTAINER(
-OUTPUT_THREE_ARG_CONTAINER(std::multiset)
+                std::multiset)
 
 #undef OUTPUT_THREE_ARG_CONTAINER
 
-#define OUTPUT_FOUR_ARG_CONTAINER(Sequence)                              \
+#define OUTPUT_FOUR_ARG_CONTAINER(Sequence) \
-  template <class T1, class T2, class T3, class T4>                      \
+template<class T1, class T2, class T3, class T4> \
-  inline std::ostream& operator<<(std::ostream& out,                     \
+inline std::ostream& operator<<(std::ostream& out, \
-                                  const Sequence<T1, T2, T3, T4>& seq) { \
+                                const Sequence<T1, T2, T3, T4>& seq) { \
-    google::PrintSequence(out, seq.begin(), seq.end());                  \
+  @ac_google_namespace@::PrintSequence(out, seq.begin(), seq.end()); \
-    return out;                                                          \
+  return out; \
-  }
+}
+
+                OUTPUT_FOUR_ARG_CONTAINER(std::map) OUTPUT_FOUR_ARG_CONTAINER(
+                    std::multimap) OUTPUT_FOUR_ARG_CONTAINER(std::unordered_set)
+                    OUTPUT_FOUR_ARG_CONTAINER(std::unordered_multiset)
 
-OUTPUT_FOUR_ARG_CONTAINER(std::map)
-OUTPUT_FOUR_ARG_CONTAINER(std::multimap)
-OUTPUT_FOUR_ARG_CONTAINER(std::unordered_set)
-OUTPUT_FOUR_ARG_CONTAINER(std::unordered_multiset)
 #undef OUTPUT_FOUR_ARG_CONTAINER
 
-#define OUTPUT_FIVE_ARG_CONTAINER(Sequence)                                  \
+#define OUTPUT_FIVE_ARG_CONTAINER(Sequence) \
-  template <class T1, class T2, class T3, class T4, class T5>                \
+template<class T1, class T2, class T3, class T4, class T5> \
-  inline std::ostream& operator<<(std::ostream& out,                         \
+inline std::ostream& operator<<(std::ostream& out, \
-                                  const Sequence<T1, T2, T3, T4, T5>& seq) { \
+                                const Sequence<T1, T2, T3, T4, T5>& seq) { \
-    google::PrintSequence(out, seq.begin(), seq.end());                      \
+  @ac_google_namespace@::PrintSequence(out, seq.begin(), seq.end()); \
-    return out;                                                              \
+  return out; \
-  }
+}
 
-OUTPUT_FIVE_ARG_CONTAINER(std::unordered_map)
+#if defined(GLOG_STL_LOGGING_FOR_UNORDERED) && __cplusplus >= 201103L
-OUTPUT_FIVE_ARG_CONTAINER(std::unordered_multimap)
+                        OUTPUT_FIVE_ARG_CONTAINER(std::unordered_map)
+                            OUTPUT_FIVE_ARG_CONTAINER(std::unordered_multimap)
+#endif
 
 #undef OUTPUT_FIVE_ARG_CONTAINER
 
-template <class First, class Second>
+                                template <class First, class Second>
-inline std::ostream& operator<<(std::ostream& out,
+                                inline std::ostream& operator<<(
-                                const std::pair<First, Second>& p) {
+                                    std::ostream& out,
+                                    const std::pair<First, Second>& p) {
   out << '(' << p.first << ", " << p.second << ')';
   return out;
 }
 
-namespace google {
+@ac_google_start_namespace@
 
-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) {
@@ -135,7 +146,7 @@ inline void PrintSequence(std::ostream& out, Iter begin, Iter end) {
   }
 }
 
-}  // namespace google
+@ac_google_end_namespace@
 
 // 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
@@ -161,8 +172,6 @@ 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 {
+namespace std { using ::operator<<; }
-using ::operator<<;
-}
 
-#endif  // GLOG_STL_LOGGING_H
+#endif  // UTIL_GTL_STL_LOGGING_INL_H_

src/glog/types.h

@@ -1,81 +0,0 @@
-
-// 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.in

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2023, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -58,21 +58,12 @@
 // CAVEAT: --vmodule functionality is not available in non gcc compilers.
 //
 
-#ifndef GLOG_VLOG_IS_ON_H
+#ifndef BASE_VLOG_IS_ON_H_
-#define GLOG_VLOG_IS_ON_H
+#define BASE_VLOG_IS_ON_H_
 
 #include <cstddef>
 
-#if defined(GLOG_USE_GLOG_EXPORT)
+#include "glog/log_severity.h"
-#  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.
@@ -81,25 +72,21 @@
 // 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)                                       \
+#define VLOG_IS_ON(verboselevel)                                \
-    __extension__({                                                      \
+  __extension__  \
-      static google::SiteFlag vlocal__ = {nullptr, nullptr, 0, nullptr}; \
+  ({ static @ac_google_namespace@::SiteFlag vlocal__ = {NULL, NULL, 0, NULL};       \
-      GLOG_IFDEF_THREAD_SANITIZER(AnnotateBenignRaceSized(               \
+     GLOG_IFDEF_THREAD_SANITIZER( \
-          __FILE__, __LINE__, &vlocal__, sizeof(google::SiteFlag), "")); \
+             AnnotateBenignRaceSized(__FILE__, __LINE__, &vlocal__, sizeof(@ac_google_namespace@::SiteFlag), "")); \
-      google::int32 verbose_level__ = (verboselevel);                    \
+     @ac_google_namespace@::int32 verbose_level__ = (verboselevel);                    \
-      (vlocal__.level == nullptr                                         \
+     (vlocal__.level == NULL ? @ac_google_namespace@::InitVLOG3__(&vlocal__, &FLAGS_v, \
-           ? google::InitVLOG3__(&vlocal__, &FLAGS_v, __FILE__,          \
+                        __FILE__, verbose_level__) : *vlocal__.level >= verbose_level__); \
-                                 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.
@@ -113,7 +100,7 @@ extern GLOG_EXPORT int SetVLOGLevel(const char* module_pattern, int log_level);
 // Various declarations needed for VLOG_IS_ON above: =========================
 
 struct SiteFlag {
-  int32* level;
+  @ac_google_namespace@::int32* level;
   const char* base_name;
   std::size_t base_len;
   SiteFlag* next;
@@ -127,10 +114,9 @@ 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__(SiteFlag* site_flag,
+extern GLOG_EXPORT bool InitVLOG3__(
-                                    int32* site_default,
+    @ac_google_namespace@::SiteFlag* site_flag,
-                                    const char* fname,
+    @ac_google_namespace@::int32* site_default, const char* fname,
-                                    int32 verbose_level);
+    @ac_google_namespace@::int32 verbose_level);
-} // namespace google
 
-#endif  // GLOG_VLOG_IS_ON_H
+#endif  // BASE_VLOG_IS_ON_H_

src/googletest.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2009, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
 //   (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__
 
@@ -51,40 +51,35 @@
 #include <utility>
 #include <vector>
 
-#include "config.h"
+#include "utilities.h"
 #ifdef HAVE_UNISTD_H
-#  include <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;
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-extern void (*g_logging_fail_func)();
+
-extern void GetExistingTempDirectories(std::vector<std::string>& list);
+extern GLOG_EXPORT void (*g_logging_fail_func)();
-extern int posix_strerror_r(int err, char* buf, size_t len);
+
-extern std::string StrError(int err);
+_END_GOOGLE_NAMESPACE_
-}  // 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");
@@ -100,7 +95,7 @@ static inline string GetTempDir() {
 // (e.g., glog/vsproject/logging_unittest).
 static const char TEST_SRC_DIR[] = "../..";
 #elif !defined(TEST_SRC_DIR)
-#  warning TEST_SRC_DIR should be defined in config.h
+# warning TEST_SRC_DIR should be defined in config.h
 static const char TEST_SRC_DIR[] = ".";
 #endif
 
@@ -117,14 +112,14 @@ DEFINE_int32(benchmark_iters, 100000, "Number of iterations per benchmark");
 #endif
 
 #ifdef HAVE_LIB_GTEST
-#  include <gtest/gtest.h>
+# include <gtest/gtest.h>
 // Use our ASSERT_DEATH implementation.
-#  undef ASSERT_DEATH
+# undef ASSERT_DEATH
-#  undef ASSERT_DEBUG_DEATH
+# undef ASSERT_DEBUG_DEATH
 using testing::InitGoogleTest;
 #else
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
 
 void InitGoogleTest(int*, char**);
 
@@ -132,94 +127,81 @@ 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 {                                                             \
+  do {                                                                         \
-      if (abs(val1 - val2) > abs_error) {                            \
+    if (abs(val1 - val2) > abs_error) {                                        \
-        fprintf(stderr, "Check failed: %s within %s of %s\n", #val1, \
+      fprintf(stderr, "Check failed: %s within %s of %s\n", #val1, #abs_error, \
-                #abs_error, #val2);                                  \
+              #val2);                                                          \
-        exit(EXIT_FAILURE);                                          \
+      exit(EXIT_FAILURE);                                                      \
-      }                                                              \
+    }                                                                          \
-    } while (0)
+  } while (0)
 
-#  define EXPECT_TRUE(cond)                           \
+#define EXPECT_TRUE(cond)                               \
-    do {                                              \
+  do {                                                  \
-      if (!(cond)) {                                  \
+    if (!(cond)) {                                      \
-        fprintf(stderr, "Check failed: %s\n", #cond); \
+      fprintf(stderr, "Check failed: %s\n", #cond);     \
-        exit(EXIT_FAILURE);                           \
+      exit(EXIT_FAILURE);                               \
-      }                                               \
+    }                                                   \
-    } while (0)
+  } 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 {                                                                \
+  do {                                                                  \
-      if (!((val1)op(val2))) {                                          \
+    if (!((val1) op (val2))) {                                          \
-        fprintf(stderr, "Check failed: %s %s %s\n", #val1, #op, #val2); \
+      fprintf(stderr, "Check failed: %s %s %s\n", #val1, #op, #val2);   \
-        exit(EXIT_FAILURE);                                             \
+      exit(EXIT_FAILURE);                                               \
-      }                                                                 \
+    }                                                                   \
-    } while (0)
+  } while (0)
 
-#  define EXPECT_EQ(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_NE(val1, val2)  EXPECT_OP(!=, val1, val2)
-#  define EXPECT_GT(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_LT(val1, val2)  EXPECT_OP(<, val1, val2)
 
-#  define EXPECT_NAN(arg)                                   \
+#define EXPECT_NAN(arg)                                         \
-    do {                                                    \
+  do {                                                          \
-      if (!isnan(arg)) {                                    \
+    if (!isnan(arg)) {                                          \
-        fprintf(stderr, "Check failed: isnan(%s)\n", #arg); \
+      fprintf(stderr, "Check failed: isnan(%s)\n", #arg);       \
-        exit(EXIT_FAILURE);                                 \
+      exit(EXIT_FAILURE);                                       \
-      }                                                     \
+    }                                                           \
-    } while (0)
+  } while (0)
 
-#  define EXPECT_INF(arg)                                   \
+#define EXPECT_INF(arg)                                         \
-    do {                                                    \
+  do {                                                          \
-      if (!isinf(arg)) {                                    \
+    if (!isinf(arg)) {                                          \
-        fprintf(stderr, "Check failed: isinf(%s)\n", #arg); \
+      fprintf(stderr, "Check failed: isinf(%s)\n", #arg);       \
-        exit(EXIT_FAILURE);                                 \
+      exit(EXIT_FAILURE);                                       \
-      }                                                     \
+    }                                                           \
-    } while (0)
+  } while (0)
 
-#  define EXPECT_DOUBLE_EQ(val1, val2)                             \
+#define EXPECT_DOUBLE_EQ(val1, val2)                                    \
-    do {                                                           \
+  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); \
+      fprintf(stderr, "Check failed: %s == %s\n", #val1, #val2);        \
-        exit(EXIT_FAILURE);                                        \
+      exit(EXIT_FAILURE);                                               \
-      }                                                            \
+    }                                                                   \
-    } while (0)
+  } while (0)
 
-#  define EXPECT_STREQ(val1, val2)                                      \
+#define EXPECT_STREQ(val1, val2)                                        \
-    do {                                                                \
+  do {                                                                  \
-      if (strcmp((val1), (val2)) != 0) {                                \
+    if (strcmp((val1), (val2)) != 0) {                                  \
-        fprintf(stderr, "Check failed: streq(%s, %s)\n", #val1, #val2); \
+      fprintf(stderr, "Check failed: streq(%s, %s)\n", #val1, #val2);   \
-        exit(EXIT_FAILURE);                                             \
+      exit(EXIT_FAILURE);                                               \
-      }                                                                 \
+    }                                                                   \
-    } while (0)
+  } while (0)
-
-#  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)
 
 vector<void (*)()> g_testlist;  // the tests to run
-#  define TEST(a, b)                                   \
+
-    struct Test_##a##_##b {                            \
+#define TEST(a, b)                                      \
-      Test_##a##_##b() { g_testlist.push_back(&Run); } \
+  struct Test_##a##_##b {                               \
-      static void Run() {                              \
+    Test_##a##_##b() { g_testlist.push_back(&Run); }    \
-        FlagSaver fs;                                  \
+    static void Run() { FlagSaver fs; RunTest(); }      \
-        RunTest();                                     \
+    static void RunTest();                              \
-      }                                                \
+  };                                                    \
-      static void RunTest();                           \
+  static Test_##a##_##b g_test_##a##_##b;               \
-    };                                                 \
+  void Test_##a##_##b::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;
@@ -231,11 +213,11 @@ static inline int RUN_ALL_TESTS() {
   return 0;
 }
 
-}  // namespace google
+_END_GOOGLE_NAMESPACE_
 
 #endif  // ! HAVE_LIB_GTEST
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
 
 static bool g_called_abort;
 static jmp_buf g_jmp_buf;
@@ -246,33 +228,33 @@ 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 {                                                             \
+  do {                                                                  \
-      g_called_abort = false;                                        \
+    g_called_abort = false;                                             \
-      /* in logging.cc */                                            \
+    /* in logging.cc */                                                 \
-      void (*original_logging_fail_func)() = g_logging_fail_func;    \
+    void (*original_logging_fail_func)() = g_logging_fail_func;         \
-      g_logging_fail_func = &CalledAbort;                            \
+    g_logging_fail_func = &CalledAbort;                                 \
-      if (!setjmp(g_jmp_buf)) fn;                                    \
+    if (!setjmp(g_jmp_buf)) fn;                                         \
-      /* set back to their default */                                \
+    /* set back to their default */                                     \
-      g_logging_fail_func = original_logging_fail_func;              \
+    g_logging_fail_func = original_logging_fail_func;                   \
-      if (!g_called_abort) {                                         \
+    if (!g_called_abort) {                                              \
-        fprintf(stderr, "Function didn't die (%s): %s\n", msg, #fn); \
+      fprintf(stderr, "Function didn't die (%s): %s\n", msg, #fn);      \
-        exit(EXIT_FAILURE);                                          \
+      exit(EXIT_FAILURE);                                               \
-      }                                                              \
+    }                                                                   \
-    } while (0)
+  } while (0)
 #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
 
@@ -296,13 +278,13 @@ static inline void RunSpecifiedBenchmarks() {
     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 push
-#  pragma GCC diagnostic ignored "-Wformat="
+#pragma GCC diagnostic ignored "-Wformat="
 #endif
     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("");
@@ -315,69 +297,77 @@ static inline void RunSpecifiedBenchmarks() {
 class CapturedStream {
  public:
   CapturedStream(int fd, string filename)
-      : fd_(fd), filename_(std::move(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_) << ", Stream " << fd_ << " already captured!";
+    CHECK(uncaptured_fd_ == -1) << ", Stream " << fd_ << " already captured!";
-    uncaptured_fd_.reset(dup(fd_));
+    uncaptured_fd_ = dup(fd_);
-    CHECK(uncaptured_fd_);
+    CHECK(uncaptured_fd_ != -1);
 
     // Open file to save stream to
-    FileDescriptor cap_fd{open(filename_.c_str(), O_CREAT | O_TRUNC | O_WRONLY,
+    int cap_fd = open(filename_.c_str(),
-                               S_IRUSR | S_IWUSR)};
+                      O_CREAT | O_TRUNC | O_WRONLY,
-    CHECK(cap_fd);
+                      S_IRUSR | S_IWUSR);
+    CHECK(cap_fd != -1);
 
     // Send stdout/stderr to this file
     fflush(nullptr);
-    CHECK(dup2(cap_fd.get(), fd_) != -1);
+    CHECK(dup2(cap_fd, fd_) != -1);
-    CHECK(cap_fd.close() != -1);
+    CHECK(close(cap_fd) != -1);
   }
 
   // Remove output redirection
   void StopCapture() {
     // Restore original stream
-    if (uncaptured_fd_) {
+    if (uncaptured_fd_ != -1) {
       fflush(nullptr);
-      CHECK(dup2(uncaptured_fd_.get(), fd_) != -1);
+      CHECK(dup2(uncaptured_fd_, fd_) != -1);
     }
   }
 
-  const string& filename() const { return filename_; }
+  const string & filename() const { return filename_; }
 
  private:
-  int fd_;  // file descriptor being captured
+  int fd_;             // file descriptor being captured
-  FileDescriptor
+  int uncaptured_fd_{-1};  // where the stream was originally being sent to
-      uncaptured_fd_;  // where the stream was originally being sent to
   string filename_;    // file where stream is being saved
 };
-static std::map<int, std::unique_ptr<CapturedStream>> s_captured_streams;
+static CapturedStream * s_captured_streams[STDERR_FILENO+1];
 // Redirect a file descriptor to a file.
-//   fd       - Should be stdout or stderr
+//   fd       - Should be STDOUT_FILENO or STDERR_FILENO
 //   filename - File where output should be stored
-static inline void CaptureTestOutput(int fd, const string& filename) {
+static inline void CaptureTestOutput(int fd, const string & filename) {
-  CHECK((fd == fileno(stdout)) || (fd == fileno(stderr)));
+  CHECK((fd == STDOUT_FILENO) || (fd == STDERR_FILENO));
-  CHECK(s_captured_streams.find(fd) == s_captured_streams.end());
+  CHECK(s_captured_streams[fd] == nullptr);
-  s_captured_streams[fd] = std::make_unique<CapturedStream>(fd, filename);
+  s_captured_streams[fd] = new CapturedStream(fd, filename);
 }
 static inline void CaptureTestStdout() {
-  CaptureTestOutput(fileno(stdout), FLAGS_test_tmpdir + "/captured.out");
+  CaptureTestOutput(STDOUT_FILENO, FLAGS_test_tmpdir + "/captured.out");
 }
 static inline void CaptureTestStderr() {
-  CaptureTestOutput(fileno(stderr), FLAGS_test_tmpdir + "/captured.err");
+  CaptureTestOutput(STDERR_FILENO, 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);
-  std::vector<char> content(file_size);
+  char * const buffer = new char[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
@@ -387,33 +377,39 @@ 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 =
+    bytes_last_read = fread(buffer+bytes_read, 1, file_size-bytes_read, file);
-        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);
 
-  return std::string(content.data(), bytes_read);
+  const string content = string(buffer, buffer+bytes_read);
+  delete[] buffer;
+
+  return content;
 }
-// Get the captured stdout  or stderr as a string
+// Get the captured stdout (when fd is STDOUT_FILENO) or stderr (when
+// fd is STDERR_FILENO) as a string
 static inline string GetCapturedTestOutput(int fd) {
-  CHECK((fd == fileno(stdout)) || (fd == fileno(stderr)));
+  CHECK(fd == STDOUT_FILENO || fd == STDERR_FILENO);
-  std::unique_ptr<CapturedStream> cap = std::move(s_captured_streams.at(fd));
+  CapturedStream * const cap = s_captured_streams[fd];
-  s_captured_streams.erase(fd);
+  CHECK(cap)
-  CHECK(cap) << ": did you forget CaptureTestStdout() or CaptureTestStderr()?";
+    << ": did you forget CaptureTestStdout() or CaptureTestStderr()?";
 
   // Make sure everything is flushed.
   cap->StopCapture();
 
   // Read the captured file.
-  std::unique_ptr<FILE> file{fopen(cap->filename().c_str(), "r")};
+  FILE * const file = fopen(cap->filename().c_str(), "r");
-  const string content = ReadEntireFile(file.get());
+  const string content = ReadEntireFile(file);
-  file.reset();
+  fclose(file);
+
+  delete cap;
+  s_captured_streams[fd] = nullptr;
 
   return content;
 }
 // Get the captured stderr of a test as a string.
 static inline string GetCapturedTestStderr() {
-  return GetCapturedTestOutput(fileno(stderr));
+  return GetCapturedTestOutput(STDERR_FILENO);
 }
 
 static const std::size_t kLoggingPrefixLength = 9;
@@ -425,7 +421,7 @@ 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;
 }
@@ -465,15 +461,16 @@ 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& newsub) {
+                          const string& oldsub,
+                          const string& newsub) {
   size_t pos = str->find(oldsub);
   if (pos != string::npos) {
     str->replace(pos, oldsub.size(), newsub);
@@ -481,18 +478,17 @@ static inline void StringReplace(string* str, const string& oldsub,
 }
 
 static inline string Munge(const string& filename) {
-  std::unique_ptr<FILE> fp{fopen(filename.c_str(), "rb")};
+  FILE* fp = fopen(filename.c_str(), "rb");
   CHECK(fp != nullptr) << filename << ": couldn't open";
   char buf[4096];
   string result;
-  while (fgets(buf, 4095, fp.get())) {
+  while (fgets(buf, 4095, fp)) {
     string line = MungeLine(buf);
     const size_t str_size = 256;
     char null_str[str_size];
     char ptr_str[str_size];
-    std::snprintf(null_str, str_size, "%p", static_cast<void*>(nullptr));
+    snprintf(null_str, str_size, "%p", static_cast<void*>(nullptr));
-    std::snprintf(ptr_str, str_size, "%p",
+    snprintf(ptr_str, str_size, "%p", reinterpret_cast<void*>(PTR_TEST_VALUE));
-                  reinterpret_cast<void*>(PTR_TEST_VALUE));
 
     StringReplace(&line, "__NULLP__", null_str);
     StringReplace(&line, "__PTRTEST__", ptr_str);
@@ -504,19 +500,19 @@ 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) {
-  std::unique_ptr<FILE> fp{fopen(file.c_str(), "wb")};
+  FILE* fp = fopen(file.c_str(), "wb");
-  fwrite(body.data(), 1, body.size(), fp.get());
+  fwrite(body.data(), 1, body.size(), fp);
+  fclose(fp);
 }
 
 static inline bool MungeAndDiffTest(const string& golden_filename,
                                     CapturedStream* cap) {
-  auto pos = s_captured_streams.find(fileno(stdout));
+  if (cap == s_captured_streams[STDOUT_FILENO]) {
-
-  if (pos != s_captured_streams.end() && cap == pos->second.get()) {
     CHECK(cap) << ": did you forget CaptureTestStdout()?";
   } else {
     CHECK(cap) << ": did you forget CaptureTestStderr()?";
@@ -551,17 +547,15 @@ static inline bool MungeAndDiffTest(const string& golden_filename,
 }
 
 static inline bool MungeAndDiffTestStderr(const string& golden_filename) {
-  return MungeAndDiffTest(golden_filename,
+  return MungeAndDiffTest(golden_filename, s_captured_streams[STDERR_FILENO]);
-                          s_captured_streams.at(fileno(stderr)).get());
 }
 
 static inline bool MungeAndDiffTestStdout(const string& golden_filename) {
-  return MungeAndDiffTest(golden_filename,
+  return MungeAndDiffTest(golden_filename, s_captured_streams[STDOUT_FILENO]);
-                          s_captured_streams.at(fileno(stdout)).get());
 }
 
 // Save flags used from logging_unittest.cc.
-#ifndef GLOG_USE_GFLAGS
+#ifndef HAVE_LIB_GFLAGS
 struct FlagSaver {
   FlagSaver()
       : v_(FLAGS_v),
@@ -584,15 +578,70 @@ struct FlagSaver {
 };
 #endif
 
+class Thread {
+ public:
+  virtual ~Thread() = default;
+
+  void SetJoinable(bool) {}
+#if defined(GLOG_OS_WINDOWS) && !defined(GLOG_OS_CYGWIN)
+  void Start() {
+    handle_ = CreateThread(nullptr, 0, &Thread::InvokeThreadW, this, 0, &th_);
+    CHECK(handle_) << "CreateThread";
+  }
+  void Join() {
+    WaitForSingleObject(handle_, INFINITE);
+  }
+#elif defined(HAVE_PTHREAD)
+  void Start() { pthread_create(&th_, nullptr, &Thread::InvokeThread, this); }
+  void Join() { pthread_join(th_, nullptr); }
+#else
+  void Start() {}
+  void Join() {}
+#endif
+
+ protected:
+  virtual void Run() = 0;
+
+ private:
+  static void* InvokeThread(void* self) {
+    (static_cast<Thread*>(self))->Run();
+    return nullptr;
+  }
+
+#if defined(GLOG_OS_WINDOWS) && !defined(GLOG_OS_CYGWIN)
+  static DWORD __stdcall InvokeThreadW(LPVOID self) {
+    InvokeThread(self);
+    return 0;
+  }
+  HANDLE handle_;
+  DWORD th_;
+#elif defined(HAVE_PTHREAD)
+  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, nullptr);
+# 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)() = nullptr;
 
-}  // namespace google
+_END_GOOGLE_NAMESPACE_
 
 void* operator new(size_t size, const std::nothrow_t&) noexcept {
-  if (google::g_new_hook) {
+  if (GOOGLE_NAMESPACE::g_new_hook) {
-    google::g_new_hook();
+    GOOGLE_NAMESPACE::g_new_hook();
   }
   return malloc(size);
 }

src/includes_unittest/CMakeLists.txt

@@ -1,16 +0,0 @@
-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

@@ -1,39 +0,0 @@
-// 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

@@ -1,39 +0,0 @@
-// 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/log_severity_unittest/CMakeLists.txt

@@ -1,10 +0,0 @@
-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

@@ -1,40 +0,0 @@
-// 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

@@ -1,42 +0,0 @@
-// 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_striplog_test.sh

@@ -1,6 +1,6 @@
 #! /bin/sh
 #
-# Copyright (c) 2023, Google Inc.
+# Copyright (c) 2007, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,15 +32,15 @@
 # Author: Sergey Ioffe
 
 get_strings () {
-    if test -e "$1"; then
+    if test -e ".libs/$1"; then
-        binary="$1"
+        binary=".libs/$1"
     elif test -e "$1.exe"; then
         binary="$1.exe"
     else
         echo "We coundn't find $1 binary."
         exit 1
     fi
-
+    
     strings -n 10 $binary | sort | awk '/TESTMESSAGE/ {printf "%s ", $2}'
 }
 
@@ -60,21 +60,20 @@ die () {
 # Check that the string literals are appropriately stripped. This will
 # not be the case in debug mode.
 
-mode=`GLOG_check_mode=1 ./striplog0_unittest 2> /dev/null`
+mode=`GLOG_check_mode=1 ./logging_striptest0 2> /dev/null`
-echo $mode
 if [ "$mode" = "opt" ];
 then
     echo "In OPT mode"
-    check_eq "`get_strings striplog0_unittest`" "COND ERROR FATAL INFO WARNING "
+    check_eq "`get_strings logging_striptest0`" "COND ERROR FATAL INFO USAGE WARNING "
-    check_eq "`get_strings striplog2_unittest`" "COND ERROR FATAL "
+    check_eq "`get_strings logging_striptest2`" "COND ERROR FATAL USAGE "
-    check_eq "`get_strings striplog10_unittest`" ""
+    check_eq "`get_strings logging_striptest10`" "" 
 else
     echo "In DBG mode; not checking strings"
 fi
 
 # Check that LOG(FATAL) aborts even for large STRIP_LOG
 
-./striplog2_unittest 2>/dev/null && die "Did not abort for STRIP_LOG=2"
+./logging_striptest2 2>/dev/null && die "Did not abort for STRIP_LOG=2"
-./striplog10_unittest 2>/dev/null && die "Did not abort for STRIP_LOG=10"
+./logging_striptest10 2>/dev/null && die "Did not abort for STRIP_LOG=10"
 
 echo "PASS"

src/logging_striptest10.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2007, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -27,8 +27,9 @@
 // (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
+// Author: Sergey Ioffe
 
-#include <glog/vlog_is_on.h>
+#define GOOGLE_STRIP_LOG 10
 
-int main() { VLOG_IS_ON(0); }
+// Include the actual test.
+#include "logging_striptest_main.cc"

src/logging_striptest2.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2007, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -27,8 +27,9 @@
 // (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
+// Author: Sergey Ioffe
 
-#include <glog/stl_logging.h>
+#define GOOGLE_STRIP_LOG 2
 
-int main() {}
+// Include the actual test.
+#include "logging_striptest_main.cc"

src/logging_striptest_main.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2023, Google Inc.
+// Copyright (c) 2007, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -31,9 +31,7 @@
 
 // The common part of the striplog tests.
 
-#include <csignal>
 #include <cstdio>
-#include <cstdlib>
 #include <iosfwd>
 #include <string>
 
@@ -41,36 +39,25 @@
 #include "config.h"
 #include "glog/logging.h"
 
+DECLARE_bool(logtostderr);
 GLOG_DEFINE_bool(check_mode, false, "Prints 'opt' or 'dbg'");
 
 using std::string;
-using namespace google;
+using namespace GOOGLE_NAMESPACE;
 
 int CheckNoReturn(bool b) {
   string s;
   if (b) {
     LOG(FATAL) << "Fatal";
-    return 0;  // Workaround for MSVC warning C4715
   } else {
     return 0;
   }
 }
 
-struct A {};
+struct A { };
-std::ostream& operator<<(std::ostream& str, const A&) { return str; }
+std::ostream &operator<<(std::ostream &str, const A&) {return str;}
-
-namespace {
-void handle_abort(int /*code*/) { std::exit(EXIT_FAILURE); }
-}  // namespace
 
 int main(int, char* argv[]) {
-#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)
-  std::signal(SIGABRT, handle_abort);
-
   FLAGS_logtostderr = true;
   InitGoogleLogging(argv[0]);
   if (FLAGS_check_mode) {
@@ -78,8 +65,8 @@ int main(int, char* argv[]) {
     return 0;
   }
   LOG(INFO) << "TESTMESSAGE INFO";
-  LOG(WARNING) << 2 << "something"
+  LOG(WARNING) << 2 << "something" << "TESTMESSAGE WARNING"
-               << "TESTMESSAGE WARNING" << 1 << 'c' << A() << std::endl;
+               << 1 << 'c' << A() << std::endl;
   LOG(ERROR) << "TESTMESSAGE ERROR";
   bool flag = true;
   (flag ? LOG(INFO) : LOG(ERROR)) << "TESTMESSAGE COND";

src/mock-log.h

@@ -35,7 +35,7 @@
 #ifndef GLOG_SRC_MOCK_LOG_H_
 #define GLOG_SRC_MOCK_LOG_H_
 
-// For google. This must go first so we get _XOPEN_SOURCE.
+// For GOOGLE_NAMESPACE. This must go first so we get _XOPEN_SOURCE.
 #include <gmock/gmock.h>
 
 #include <string>
@@ -43,7 +43,7 @@
 #include "glog/logging.h"
 #include "utilities.h"
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
 namespace glog_testing {
 
 // A ScopedMockLog object intercepts LOG() messages issued during its
@@ -64,7 +64,7 @@ namespace glog_testing {
 //
 //     Foo();  // Exercises the code under test.
 //   }
-class ScopedMockLog : public google::LogSink {
+class ScopedMockLog : public GOOGLE_NAMESPACE::LogSink {
  public:
   // When a ScopedMockLog object is constructed, it starts to
   // intercept logs.
@@ -86,9 +86,9 @@ class ScopedMockLog : public google::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,
+  MOCK_METHOD3(Log, void(GOOGLE_NAMESPACE::LogSeverity severity,
-               void(google::LogSeverity severity, const std::string& file_path,
+                         const std::string& file_path,
-                    const std::string& message));
+                         const std::string& message));
 
  private:
   // Implements the send() virtual function in class LogSink.
@@ -112,7 +112,7 @@ class ScopedMockLog : public google::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.
-  void send(google::LogSeverity severity, const char* full_filename,
+  void send(GOOGLE_NAMESPACE::LogSeverity severity, const char* full_filename,
             const char* /*base_filename*/, int /*line*/,
             const LogMessageTime& /*logmsgtime*/, const char* message,
             size_t message_len) override {
@@ -141,7 +141,7 @@ class ScopedMockLog : public google::LogSink {
   // All relevant information about a logged message that needs to be passed
   // from send() to WaitTillSent().
   struct MessageInfo {
-    google::LogSeverity severity;
+    GOOGLE_NAMESPACE::LogSeverity severity;
     std::string file_path;
     std::string message;
   };
@@ -149,6 +149,6 @@ class ScopedMockLog : public google::LogSink {
 };
 
 }  // namespace glog_testing
-}  // namespace google
+_END_GOOGLE_NAMESPACE_
 
 #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::GLOG_ERROR;
+using GOOGLE_NAMESPACE::GLOG_ERROR;
-using google::GLOG_INFO;
+using GOOGLE_NAMESPACE::GLOG_INFO;
-using google::GLOG_WARNING;
+using GOOGLE_NAMESPACE::GLOG_WARNING;
-using google::glog_testing::ScopedMockLog;
+using GOOGLE_NAMESPACE::glog_testing::ScopedMockLog;
 using std::string;
 using testing::_;
 using testing::EndsWith;
@@ -57,7 +57,8 @@ 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.";
@@ -66,9 +67,13 @@ 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.";
@@ -94,8 +99,8 @@ TEST(ScopedMockLogTest, LogDuringIntercept) {
 
 }  // namespace
 
-int main(int argc, char** argv) {
+int main(int argc, char **argv) {
-  google::InitGoogleLogging(argv[0]);
+  GOOGLE_NAMESPACE::InitGoogleLogging(argv[0]);
   testing::InitGoogleTest(&argc, argv);
   testing::InitGoogleMock(&argc, argv);
 

src/package_config_unittest/working_config/glog_package_config.cc

@@ -1,3 +1,6 @@
 #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) 2024, Google Inc.
+// Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -31,60 +31,61 @@
 //
 // logging_unittest.cc covers the functionality herein
 
+#include <cerrno>
 #include <cstdarg>
 #include <cstdio>
-#include <cstring>
-#include <iomanip>
-#include <mutex>
-#include <ostream>
-#include <streambuf>
-#include <thread>
-
-#include "config.h"
 
+#include "utilities.h"
 #ifdef HAVE_UNISTD_H
-#  include <unistd.h>  // for close() and write()
+# include <unistd.h>               // for close() and write()
-#endif
-#if defined(HAVE_SYSCALL_H)
-#  include <syscall.h>  // for syscall()
-#elif defined(HAVE_SYS_SYSCALL_H)
-#  include <sys/syscall.h>  // for syscall()
-#endif
-#ifdef HAVE_UNISTD_H
-#  include <unistd.h>
 #endif
 #include <fcntl.h>  // for open()
 
-#include "glog/logging.h"
+#include <ctime>
-#include "glog/raw_logging.h"
-#include "stacktrace.h"
-#include "utilities.h"
 
-#if (defined(HAVE_SYSCALL_H) || defined(HAVE_SYS_SYSCALL_H)) &&    \
+#include "base/commandlineflags.h"
+#include "config.h"
+#include "glog/logging.h"  // To pick up flag settings etc.
+#include "glog/raw_logging.h"
+
+#ifdef HAVE_STACKTRACE
+# include "stacktrace.h"
+#endif
+
+#if defined(HAVE_SYSCALL_H)
+#include <syscall.h>                 // for syscall()
+#elif defined(HAVE_SYS_SYSCALL_H)
+#include <sys/syscall.h>                 // for syscall()
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#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)
+#define safe_write(fd, s, len) syscall(SYS_write, fd, s, len)
 #else
 // Not so safe, but what can you do?
-#  define safe_write(fd, s, len) write(fd, s, len)
+#define safe_write(fd, s, len) write(fd, s, len)
 #endif
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
 
 #if defined(__GNUC__)
-#  define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck) \
+#define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck) \
-    __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)))
+  __attribute__((format_arg(stringIndex)))
 #else
-#  define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck)
+#define GLOG_ATTRIBUTE_FORMAT(archetype, stringIndex, firstToCheck)
-#  define GLOG_ATTRIBUTE_FORMAT_ARG(stringIndex)
+#define GLOG_ATTRIBUTE_FORMAT_ARG(stringIndex)
 #endif
 
-// CAVEAT: std::vsnprintf called from *DoRawLog below has some (exotic) code
+// CAVEAT: vsnprintf called from *DoRawLog below has some (exotic) code paths
-// paths that invoke malloc() and getenv() that might acquire some locks. If
+// that invoke malloc() and getenv() that might acquire some locks.
-// this becomes a problem we should reimplement a subset of std::vsnprintf that
+// If this becomes a problem we should reimplement a subset of vsnprintf
-// does not need locks and malloc.
+// that does not need locks and malloc.
 
 // Helper for RawLog__ below.
 // *DoRawLog writes to *buf of *size and move them past the written portion.
@@ -93,7 +94,7 @@ 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 = std::vsnprintf(*buf, *size, format, ap);
+  int n = 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);
@@ -102,15 +103,15 @@ 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,
+inline static bool VADoRawLog(char** buf, size_t* size,
-                              va_list ap) {
+                              const char* format, va_list ap) {
 #if defined(__GNUC__)
-#  pragma GCC diagnostic push
+#pragma GCC diagnostic push
-#  pragma GCC diagnostic ignored "-Wformat-nonliteral"
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
 #endif
-  int n = std::vsnprintf(*buf, *size, format, ap);
+  int n = 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);
@@ -119,29 +120,9 @@ inline static bool VADoRawLog(char** buf, size_t* size, const char* format,
 }
 
 static const int kLogBufSize = 3000;
-static std::once_flag crashed;
+static bool crashed = false;
-static logging::internal::CrashReason crash_reason;
+static CrashReason crash_reason;
-static char crash_buf[kLogBufSize + 1] = {0};  // Will end in '\0'
+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,
@@ -151,25 +132,16 @@ 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 %s %s:%d] RAW: ",
+  DoRawLog(&buf, &size, "%c00000000 00:00:00.000000 %5u %s:%d] RAW: ",
-           GetLogSeverityName(severity)[0], sbuf.data(),
+           LogSeverityNames[severity][0],
-           const_basename(const_cast<char*>(file)), line);
+           static_cast<unsigned int>(GetTID()),
+           const_basename(const_cast<char *>(file)), line);
 
   // Record the position and size of the buffer after the prefix
   const char* msg_start = buf;
@@ -188,9 +160,9 @@ 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(fileno(stderr), buffer, strlen(buffer));
+  safe_write(STDERR_FILENO, buffer, strlen(buffer));
-  if (severity == GLOG_FATAL) {
+  if (severity == GLOG_FATAL)  {
-    std::call_once(crashed, [file, line, msg_start, msg_size] {
+    if (!sync_val_compare_and_swap(&crashed, false, true)) {
       crash_reason.filename = file;
       crash_reason.line_number = line;
       memcpy(crash_buf, msg_start, msg_size);  // Don't include prefix
@@ -202,9 +174,9 @@ void RawLog__(LogSeverity severity, const char* file, int line,
       crash_reason.depth = 0;
 #endif
       SetCrashReason(&crash_reason);
-    });
+    }
     LogMessage::Fail();  // abort()
   }
 }
 
-}  // namespace google
+_END_GOOGLE_NAMESPACE_

src/signalhandler.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -31,36 +31,22 @@
 //
 // Implementation of InstallFailureSignalHandler().
 
-#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 "utilities.h"
-
 #ifdef HAVE_UCONTEXT_H
-#  include <ucontext.h>
+# include <ucontext.h>
 #endif
 #ifdef HAVE_SYS_UCONTEXT_H
-#  include <sys/ucontext.h>
+# include <sys/ucontext.h>
-#endif
-#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
+#include <algorithm>
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
 
 namespace {
 
@@ -71,14 +57,16 @@ 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"},
+  { SIGSEGV, "SIGSEGV" },
-    {SIGFPE, "SIGFPE"},   {SIGABRT, "SIGABRT"},
+  { SIGILL, "SIGILL" },
+  { SIGFPE, "SIGFPE" },
+  { SIGABRT, "SIGABRT" },
 #if !defined(GLOG_OS_WINDOWS)
-    {SIGBUS, "SIGBUS"},
+  { SIGBUS, "SIGBUS" },
 #endif
-    {SIGTERM, "SIGTERM"},
+  { SIGTERM, "SIGTERM" },
 };
 
 static bool kFailureSignalHandlerInstalled = false;
@@ -86,15 +74,14 @@ static bool kFailureSignalHandlerInstalled = false;
 #if !defined(GLOG_OS_WINDOWS)
 // 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)) && \
+#if (defined(HAVE_UCONTEXT_H) || defined(HAVE_SYS_UCONTEXT_H)) && defined(PC_FROM_UCONTEXT)
-      defined(PC_FROM_UCONTEXT)
   if (ucontext_in_void != nullptr) {
-    ucontext_t* context = reinterpret_cast<ucontext_t*>(ucontext_in_void);
+    ucontext_t *context = reinterpret_cast<ucontext_t *>(ucontext_in_void);
     return (void*)context->PC_FROM_UCONTEXT;
   }
-#  else
+#else
   (void)ucontext_in_void;
-#  endif
+#endif
   return nullptr;
 }
 #endif
@@ -103,13 +90,14 @@ void* GetPC(void* ucontext_in_void) {
 // as it's not async signal safe.
 class MinimalFormatter {
  public:
-  MinimalFormatter(char* buffer, size_t size)
+  MinimalFormatter(char *buffer, size_t size)
-      : buffer_(buffer), cursor_(buffer), end_(buffer + size) {}
+      : buffer_(buffer),
+        cursor_(buffer),
+        end_(buffer + size) {
+  }
 
   // Returns the number of bytes written in the buffer.
-  std::size_t num_bytes_written() const {
+  std::size_t num_bytes_written() const { return static_cast<std::size_t>(cursor_ - buffer_); }
-    return static_cast<std::size_t>(cursor_ - buffer_);
-  }
 
   // Appends string from "str" and updates the internal cursor.
   void AppendString(const char* str) {
@@ -155,14 +143,14 @@ class MinimalFormatter {
   }
 
  private:
-  char* buffer_;
+  char *buffer_;
-  char* cursor_;
+  char *cursor_;
-  const char* const end_;
+  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(fileno(stderr), data, size) < 0) {
+  if (write(STDERR_FILENO, data, size) < 0) {
     // Ignore errors.
   }
 }
@@ -189,7 +177,7 @@ void DumpTimeInfo() {
 #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 = nullptr;
   for (auto kFailureSignal : kFailureSignals) {
@@ -215,25 +203,21 @@ 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 ");
+  formatter.AppendString(" (TID 0x");
-
+  // We assume pthread_t is an integral number or a pointer, rather
-  std::ostringstream oss;
+  // than a complex struct.  In some environments, pthread_self()
-  oss << std::showbase << std::hex << std::this_thread::get_id();
+  // returns an uint64 but in some other environments pthread_self()
-  formatter.AppendString(oss.str().c_str());
+  // returns a pointer.
-#  if defined(GLOG_OS_LINUX) && defined(HAVE_SYS_SYSCALL_H) && \
+  pthread_t id = pthread_self();
-      defined(HAVE_SYS_TYPES_H)
+  formatter.AppendUint64(
-  pid_t tid = syscall(SYS_gettid);
+      reinterpret_cast<uint64>(reinterpret_cast<const char*>(id)), 16);
-  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());
 }
@@ -243,19 +227,14 @@ 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,
+  if (Symbolize(reinterpret_cast<char *>(pc) - 1,
-                sizeof(symbolized))) {
+                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));
@@ -285,19 +264,52 @@ void InvokeDefaultSignalHandler(int signal_number) {
 #endif
 }
 
-// This variable is used for protecting FailureSignalHandler() from dumping
+// This variable is used for protecting FailureSignalHandler() from
-// stuff while another thread is doing it.  Our policy is to let the first
+// dumping stuff while another thread is doing it.  Our policy is to let
-// thread dump stuff and let other threads do nothing.
+// the first thread dump stuff and let other threads wait.
 // See also comments in FailureSignalHandler().
-static std::once_flag signaled;
+static pthread_t* g_entered_thread_id_pointer = nullptr;
 
-static void HandleSignal(int signal_number
+// Dumps signal and stack frame information, and invokes the default
-#if !defined(GLOG_OS_WINDOWS)
+// signal handler once our job is done.
-                         ,
+#if defined(GLOG_OS_WINDOWS)
-                         siginfo_t* signal_info, void* ucontext
+void FailureSignalHandler(int signal_number)
+#else
+void FailureSignalHandler(int signal_number,
+                          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 nullptr).
+  pthread_t* old_thread_id_pointer =
+      glog_internal_namespace_::sync_val_compare_and_swap(
+          &g_entered_thread_id_pointer, static_cast<pthread_t*>(nullptr),
+          &my_thread_id);
+  if (old_thread_id_pointer != nullptr) {
+    // 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
@@ -308,20 +320,20 @@ static void HandleSignal(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
+# ifdef HAVE_SIGACTION
   DumpSignalInfo(signal_number, signal_info);
-#  elif !defined(GLOG_OS_WINDOWS)
+#elif !defined(GLOG_OS_WINDOWS)
   (void)signal_info;
-#  endif
+# endif
   // Dump the stack traces.
   for (int i = 0; i < depth; ++i) {
     DumpStackFrameInfo("    ", stack[i]);
@@ -341,31 +353,16 @@ static void HandleSignal(int signal_number
 
   // Flush the logs before we do anything in case 'anything'
   // causes problems.
-  FlushLogFilesUnsafe(GLOG_INFO);
+  FlushLogFilesUnsafe(0);
 
   // Kill ourself by the default signal handler.
   InvokeDefaultSignalHandler(signal_number);
 }
 
-// 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
 
+namespace glog_internal_namespace_ {
+
 bool IsFailureSignalHandlerInstalled() {
 #ifdef HAVE_SIGACTION
   // TODO(andschwa): Return kFailureSignalHandlerInstalled?
@@ -382,6 +379,8 @@ bool IsFailureSignalHandlerInstalled() {
   return false;
 }
 
+}  // namespace glog_internal_namespace_
+
 void InstallFailureSignalHandler() {
 #ifdef HAVE_SIGACTION
   // Build the sigaction struct.
@@ -397,7 +396,8 @@ void InstallFailureSignalHandler() {
   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
@@ -409,4 +409,4 @@ void InstallFailureWriter(void (*writer)(const char* data, size_t size)) {
 #endif  // HAVE_SIGACTION
 }
 
-}  // namespace google
+_END_GOOGLE_NAMESPACE_

src/signalhandler_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -32,52 +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 <thread>
 
-#include "config.h"
 #include "glog/logging.h"
-#include "stacktrace.h"
-#include "symbolize.h"
 
-#if defined(HAVE_UNISTD_H)
+#ifdef HAVE_LIB_GFLAGS
-#  include <unistd.h>
+#include <gflags/gflags.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;
+using namespace GOOGLE_NAMESPACE;
 
-static void DieInThread(int* a) {
+static void* DieInThread(void*) {
-  std::ostringstream oss;
+  // We assume pthread_t is an integral number or a pointer, rather
-  oss << std::showbase << std::hex << std::this_thread::get_id();
+  // than a complex struct.  In some environments, pthread_self()
-
+  // returns an uint64 but in some other environments pthread_self()
-  fprintf(stderr, "%s is dying\n", oss.str().c_str());
+  // returns a pointer.
-  int b = 1 / *a;
+  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;
   fprintf(stderr, "We should have died: b=%d\n", b);
+  return nullptr;
 }
 
 static void WriteToStdout(const char* data, size_t size) {
-  if (write(fileno(stdout), data, size) < 0) {
+  if (write(STDOUT_FILENO, 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 GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
   ParseCommandLineFlags(&argc, &argv, true);
-#  endif
+#endif
   InstallFailureSignalHandler();
   const std::string command = argc > 1 ? argv[1] : "none";
   if (command == "segv") {
@@ -85,21 +85,26 @@ 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") {
-    std::thread t{&DieInThread, nullptr};
+#if defined(HAVE_PTHREAD)
-    t.join();
+    pthread_t thread;
+    pthread_create(&thread, nullptr, &DieInThread, nullptr);
+    pthread_join(thread, nullptr);
+#else
+    fprintf(stderr, "no pthread\n");
+    return 1;
+#endif
   } else if (command == "dump_to_stdout") {
     InstallFailureWriter(WriteToStdout);
     abort();
   } else if (command == "installed") {
     fprintf(stderr, "signal handler installed: %s\n",
-            IsFailureSignalHandlerInstalled() ? "true" : "false");
+        IsFailureSignalHandlerInstalled() ? "true" : "false");
   } else {
     // Tell the shell script
     puts("OK");

src/stacktrace.cc

@@ -1,38 +0,0 @@
-// 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) 2024, Google Inc.
+// Copyright (c) 2000 - 2007, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -30,46 +30,13 @@
 // Routines to extract the current stack trace.  These functions are
 // thread-safe.
 
-#ifndef GLOG_INTERNAL_STACKTRACE_H
+#ifndef BASE_STACKTRACE_H_
-#define GLOG_INTERNAL_STACKTRACE_H
+#define BASE_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"
-#if defined(HAVE_LIBUNWIND)
+#include "glog/logging.h"
-#  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
 
-#if !defined(STACKTRACE_H) && defined(HAVE_EXECINFO_BACKTRACE)
+_START_GOOGLE_NAMESPACE_
-#  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.
@@ -87,11 +54,8 @@ inline namespace glog_internal_namespace_ {
 //           ....       ...
 //
 // "result" must not be nullptr.
-GLOG_NO_EXPORT int GetStackTrace(void** result, int max_depth, int skip_count);
+GLOG_EXPORT int GetStackTrace(void** result, int max_depth, int skip_count);
 
-#endif  // defined(HAVE_STACKTRACE)
+_END_GOOGLE_NAMESPACE_
 
-}  // namespace glog_internal_namespace_
+#endif  // BASE_STACKTRACE_H_
-}  // namespace google
-
-#endif  // GLOG_INTERNAL_STACKTRACE_H

src/stacktrace_generic-inl.h

@@ -37,13 +37,12 @@
 
 #include "stacktrace.h"
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-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);
@@ -62,5 +61,4 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   return result_count;
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google

src/stacktrace_libunwind-inl.h

@@ -40,8 +40,7 @@ extern "C" {
 #include "glog/raw_logging.h"
 #include "stacktrace.h"
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-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
@@ -52,11 +51,11 @@ inline namespace glog_internal_namespace_ {
 // cases, we return 0 to indicate the situation.
 // We can use the GCC __thread syntax here since libunwind is not supported on
 // Windows.
-static __thread bool g_tl_entered;  // Initialized to false.
+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;
@@ -68,11 +67,11 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
 
   unw_getcontext(&uc);
   RAW_CHECK(unw_init_local(&cursor, &uc) >= 0, "unw_init_local failed");
-  skip_count++;  // Do not include the "GetStackTrace" frame
+  skip_count++;         // Do not include the "GetStackTrace" frame
 
   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;
     }
@@ -91,5 +90,4 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   return n;
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google

src/stacktrace_powerpc-inl.h

@@ -40,16 +40,15 @@
 
 #include "stacktrace.h"
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
 
 // Given a pointer to a stack frame, locate and return the calling
 // 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>
+template<bool STRICT_UNWINDING>
-static void** NextStackFrame(void** old_sp) {
+static void **NextStackFrame(void **old_sp) {
-  void** new_sp = static_cast<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
@@ -69,7 +68,7 @@ static void** NextStackFrame(void** old_sp) {
       return nullptr;
     }
   }
-  if ((uintptr_t)new_sp & (sizeof(void*) - 1)) return nullptr;
+  if ((uintptr_t)new_sp & (sizeof(void *) - 1)) return nullptr;
   return new_sp;
 }
 
@@ -79,15 +78,15 @@ 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
@@ -112,18 +111,17 @@ 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);
+      result[n++] = *(sp+1);
-#elif defined(__APPLE__) || \
+#elif defined(__APPLE__) || ((defined(__linux) || defined(__linux__)) && defined(__PPC64__))
-    ((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 architecture.
+#error Need to specify the PPC ABI for your architecture.
 #endif
     }
     // Use strict unwinding rules.
@@ -132,5 +130,4 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   return n;
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google

src/stacktrace_unittest.cc

@@ -38,9 +38,11 @@
 #include "utilities.h"
 
 #ifdef HAVE_EXECINFO_BACKTRACE_SYMBOLS
-#  include <execinfo.h>
+# include <execinfo.h>
 #endif
 
+using namespace GOOGLE_NAMESPACE;
+
 #ifdef HAVE_STACKTRACE
 
 // Obtain a backtrace, verify that the expected callers are present in the
@@ -57,87 +59,81 @@ 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 {                                                         \
+  do {                                                                   \
-        (prange)->start = &&start_label;                           \
+    (prange)->start = &&start_label;                                     \
-        (prange)->end = &&end_label;                               \
+    (prange)->end = &&end_label;                                         \
-        CHECK_LT((prange)->start, (prange)->end);                  \
+    CHECK_LT((prange)->start, (prange)->end);                            \
-      } while (0)
+  } while (0)
 // This macro expands into "unmovable" code (opaque to GCC), and that
 // prevents GCC from moving a_label up or down in the code.
 // 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) \
+#define DECLARE_ADDRESS_LABEL(a_label)                                   \
-    a_label:                               \
+  a_label: do { __asm__ __volatile__(""); } while (0)
-      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 {                                                                   \
+  do {                                                                   \
-        void* ra = __builtin_return_address(0);                              \
+    void *ra = __builtin_return_address(0);                              \
-        CHECK_LT((prange)->start, ra);                                       \
+    CHECK_LT((prange)->start, ra);                                       \
-        if (ra > (prange)->end) {                                            \
+    if (ra > (prange)->end) {                                            \
-          printf("Adjusting range from %p..%p to %p..%p\n", (prange)->start, \
+      printf("Adjusting range from %p..%p to %p..%p\n",                  \
-                 (prange)->end, (prange)->start, ra);                        \
+             (prange)->start, (prange)->end,                             \
-          (prange)->end = ra;                                                \
+             (prange)->start, ra);                                       \
-        }                                                                    \
+      (prange)->end = ra;                                                \
-      } while (0)
+    }                                                                    \
-#  else
+  } while (0)
+#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 {                                                         \
+  do {                                                                   \
-        (prange)->start = reinterpret_cast<const void*>(&fn);      \
+    (prange)->start = reinterpret_cast<const void *>(&fn);               \
-        (prange)->end = reinterpret_cast<const char*>(&fn) + 256;  \
+    (prange)->end = reinterpret_cast<const char *>(&fn) + 256;           \
-      } while (0)
+  } while (0)
-#    define DECLARE_ADDRESS_LABEL(a_label) \
+#define DECLARE_ADDRESS_LABEL(a_label) do { } while (0)
-      do {                                 \
+#define ADJUST_ADDRESS_RANGE_FROM_RA(prange) do { } while (0)
-      } while (0)
+#endif  // __GNUC__
-#    define ADJUST_ADDRESS_RANGE_FROM_RA(prange) \
-      do {                                       \
-      } while (0)
-#  endif  // __GNUC__
 
 //-----------------------------------------------------------------------//
 
-static void CheckRetAddrIsInFunction(void* ret_addr,
+static void CheckRetAddrIsInFunction(void *ret_addr, const AddressRange &range)
-                                     const AddressRange& range) {
+{
   CHECK_GE(ret_addr, range.start);
   CHECK_LE(ret_addr, range.end);
 }
 
 //-----------------------------------------------------------------------//
 
-#  if defined(__clang__)
+#if defined(__clang__)
-#    pragma clang diagnostic push
+#pragma clang diagnostic push
-#    pragma clang diagnostic ignored "-Wgnu-label-as-value"
+#pragma clang diagnostic ignored "-Wgnu-label-as-value"
-#  endif
+#endif
 
 void ATTRIBUTE_NOINLINE CheckStackTrace(int);
 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 = google::GetStackTrace(stack, STACK_LEN, 0);
+  size = GetStackTrace(stack, STACK_LEN, 0);
   printf("Obtained %d stack frames.\n", size);
   CHECK_GE(size, 1);
   CHECK_LE(size, STACK_LEN);
 
   if (true) {
-#  ifdef HAVE_EXECINFO_BACKTRACE_SYMBOLS
+#ifdef HAVE_EXECINFO_BACKTRACE_SYMBOLS
-    char** strings = backtrace_symbols(stack, size);
+    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]);
@@ -150,11 +146,11 @@ static void ATTRIBUTE_NOINLINE CheckStackTraceLeaf() {
 
     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,
+    printf("Backtrace %d: expected: %p..%p  actual: %p ... ",
-           expected_range[i].start, expected_range[i].end, stack[i]);
+           i, expected_range[i].start, expected_range[i].end, stack[i]);
     fflush(stdout);
     CheckRetAddrIsInFunction(stack[i], expected_range[i]);
     printf("OK\n");
@@ -202,7 +198,7 @@ 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
@@ -210,9 +206,8 @@ 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
+#endif
-    void ATTRIBUTE_NOINLINE
+void ATTRIBUTE_NOINLINE CheckStackTrace(int i) {
-    CheckStackTrace(int i) {
   INIT_ADDRESS_RANGE(CheckStackTrace, start, end, &expected_range[5]);
   DECLARE_ADDRESS_LABEL(start);
   for (int j = i; j >= 0; j--) {
@@ -221,15 +216,15 @@ static
   DECLARE_ADDRESS_LABEL(end);
 }
 
-#  if defined(__clang__)
+#if defined(__clang__)
-#    pragma clang diagnostic pop
+#pragma clang diagnostic pop
-#  endif
+#endif
 
 //-----------------------------------------------------------------------//
 
-int main(int, char** argv) {
+int main(int, char ** argv) {
   FLAGS_logtostderr = true;
-  google::InitGoogleLogging(argv[0]);
+  InitGoogleLogging(argv[0]);
 
   CheckStackTrace(0);
 
@@ -240,12 +235,12 @@ int main(int, char** argv) {
 #else
 int main() {
 
-#  ifdef GLOG_BAZEL_BUILD
+#ifdef GLOG_BAZEL_BUILD
   printf("HAVE_STACKTRACE is expected to be defined in Bazel tests\n");
   exit(EXIT_FAILURE);
-#  endif  // GLOG_BAZEL_BUILD
+#endif  // GLOG_BAZEL_BUILD
 
   printf("PASS (no stacktrace support)\n");
   return 0;
 }
-#endif    // HAVE_STACKTRACE
+#endif  // HAVE_STACKTRACE

src/stacktrace_unwind-inl.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2023, Google Inc.
+// Copyright (c) 2005 - 2007, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -33,47 +33,48 @@
 
 #include <unwind.h>  // ABI defined unwinder
 
+#include <cstdlib>  // for nullptr
+
 #include "stacktrace.h"
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
 
 struct trace_arg_t {
-  void** result;
+  void **result;
   int max_depth;
   int skip_count;
   int count;
 };
 
 // Workaround for the malloc() in _Unwind_Backtrace() issue.
-static _Unwind_Reason_Code nop_backtrace(struct _Unwind_Context* /*uc*/,
+static _Unwind_Reason_Code nop_backtrace(struct _Unwind_Context */*uc*/, void */*opq*/) {
-                                         void* /*opq*/) {
   return _URC_NO_REASON;
 }
 
+
 // This code is not considered ready to run until
 // static initializers run so that we are guaranteed
 // that any malloc-related initialization is done.
 static bool ready_to_run = false;
 class StackTraceInit {
  public:
-  StackTraceInit() {
+   StackTraceInit() {
-    // Extra call to force initialization
+     // Extra call to force initialization
-    _Unwind_Backtrace(nop_backtrace, nullptr);
+     _Unwind_Backtrace(nop_backtrace, nullptr);
-    ready_to_run = true;
+     ready_to_run = true;
-  }
+   }
 };
 
 static StackTraceInit module_initializer;  // Force initialization
 
-static _Unwind_Reason_Code GetOneFrame(struct _Unwind_Context* uc, void* opq) {
+static _Unwind_Reason_Code GetOneFrame(struct _Unwind_Context *uc, void *opq) {
-  auto* targ = static_cast<trace_arg_t*>(opq);
+   auto *targ = static_cast<trace_arg_t *>(opq);
 
-  if (targ->skip_count > 0) {
+   if (targ->skip_count > 0) {
-    targ->skip_count--;
+     targ->skip_count--;
-  } else {
+   } else {
-    targ->result[targ->count++] = reinterpret_cast<void*>(_Unwind_GetIP(uc));
+     targ->result[targ->count++] = reinterpret_cast<void *>(_Unwind_GetIP(uc));
-  }
+   }
 
   if (targ->count == targ->max_depth) {
     return _URC_END_OF_STACK;
@@ -90,7 +91,7 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
 
   trace_arg_t targ;
 
-  skip_count += 1;  // Do not include the "GetStackTrace" frame
+  skip_count += 1;         // Do not include the "GetStackTrace" frame
 
   targ.result = result;
   targ.max_depth = max_depth;
@@ -102,5 +103,4 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   return targ.count;
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google

src/stacktrace_windows-inl.h

@@ -31,13 +31,12 @@
 //
 // Windows implementation - just use CaptureStackBackTrace
 
-// clang-format off
+#include "config.h"
-#include <windows.h> // Must come before <dbghelp.h>
+#include "port.h"
+#include "stacktrace.h"
 #include <dbghelp.h>
-// clang-format on
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
 
 int GetStackTrace(void** result, int max_depth, int skip_count) {
   if (max_depth > 64) {
@@ -49,5 +48,4 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
                                static_cast<DWORD>(max_depth), result, nullptr);
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google

src/stacktrace_x86-inl.h

@@ -31,27 +31,26 @@
 
 #include <cstdint>  // for uintptr_t
 
-#include "utilities.h"  // for OS_* macros
+#include "utilities.h"   // for OS_* macros
 
 #if !defined(GLOG_OS_WINDOWS)
-#  include <sys/mman.h>
+#include <unistd.h>
-#  include <unistd.h>
+#include <sys/mman.h>
 #endif
 
 #include <cstdio>  // for nullptr
 
 #include "stacktrace.h"
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
 
 // Given a pointer to a stack frame, locate and return the calling
 // 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>
+template<bool STRICT_UNWINDING>
-static void** NextStackFrame(void** old_sp) {
+static void **NextStackFrame(void **old_sp) {
-  void** new_sp = static_cast<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
@@ -76,7 +75,7 @@ static void** NextStackFrame(void** old_sp) {
       return nullptr;
     }
   }
-  if (reinterpret_cast<uintptr_t>(new_sp) & (sizeof(void*) - 1)) {
+  if (reinterpret_cast<uintptr_t>(new_sp) & (sizeof(void *) - 1)) {
     return nullptr;
   }
 #ifdef __i386__
@@ -93,9 +92,9 @@ static void** NextStackFrame(void** old_sp) {
     // Note: NextStackFrame<false>() is only called while the program
     //       is already on its last leg, so it's ok to be slow here.
     static int page_size = getpagesize();
-    void* new_sp_aligned =
+    void *new_sp_aligned =
-        reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(new_sp) &
+        reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(new_sp) &
-                                static_cast<uintptr_t>(~(page_size - 1)));
+                                 static_cast<uintptr_t>(~(page_size - 1)));
     if (msync(new_sp_aligned, static_cast<size_t>(page_size), MS_ASYNC) == -1) {
       return nullptr;
     }
@@ -106,12 +105,12 @@ static void** NextStackFrame(void** old_sp) {
 
 // If you change this function, also change GetStackFrames below.
 int GetStackTrace(void** result, int max_depth, int skip_count) {
-  void** sp;
+  void **sp;
 
 #ifdef __GNUC__
-#  if __GNUC__ * 100 + __GNUC_MINOR__ >= 402
+#if __GNUC__ * 100 + __GNUC_MINOR__ >= 402
-#    define USE_BUILTIN_FRAME_ADDRESS
+#define USE_BUILTIN_FRAME_ADDRESS
-#  endif
+#endif
 #endif
 
 #ifdef USE_BUILTIN_FRAME_ADDRESS
@@ -122,7 +121,7 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   //    sp[1]   caller address
   //    sp[2]   first argument
   //    ...
-  sp = (void**)&result - 2;
+  sp = (void **)&result - 2;
 #elif defined(__x86_64__)
   // __builtin_frame_address(0) can return the wrong address on gcc-4.1.0-k8
   unsigned long rbp;
@@ -133,10 +132,10 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
   // would be (before this __asm__ instruction) to call Noop() defined as
   //   static void Noop() __attribute__ ((noinline));  // prevent inlining
   //   static void Noop() { asm(""); }  // prevent optimizing-away
-  __asm__ volatile("mov %%rbp, %0" : "=r"(rbp));
+  __asm__ volatile ("mov %%rbp, %0" : "=r" (rbp));
   // Arguments are passed in registers on x86-64, so we can't just
   // offset from &result
-  sp = (void**)rbp;
+  sp = (void **) rbp;
 #endif
 
   int n = 0;
@@ -149,12 +148,12 @@ int GetStackTrace(void** result, int max_depth, int skip_count) {
     if (skip_count > 0) {
       skip_count--;
     } else {
-      result[n++] = *(sp + 1);
+      result[n++] = *(sp+1);
     }
     // Use strict unwinding rules.
     sp = NextStackFrame<true>(sp);
   }
   return n;
 }
-}  // namespace glog_internal_namespace_
+
-}  // namespace google
+_END_GOOGLE_NAMESPACE_

src/stl_logging_unittest.cc

@@ -62,14 +62,14 @@ static void TestSTLLogging() {
 
   {
     // Test a sorted pair associative container.
-    map<int, string> m;
+    map< int, string > m;
     m[20] = "twenty";
     m[10] = "ten";
     m[30] = "thirty";
     ostringstream ss;
     ss << m;
     EXPECT_EQ(ss.str(), "(10, ten) (20, twenty) (30, thirty)");
-    map<int, string> copied_m(m);
+    map< int, string > copied_m(m);
     CHECK_EQ(m, copied_m);  // This must compile.
   }
 
@@ -82,7 +82,7 @@ static void TestSTLLogging() {
       if (i > 0) expected += ' ';
       const size_t buf_size = 256;
       char buf[buf_size];
-      std::snprintf(buf, buf_size, "%d", i);
+      snprintf(buf, buf_size, "%d", i);
       expected += buf;
     }
     v.push_back(100);
@@ -95,14 +95,14 @@ static void TestSTLLogging() {
   {
     // Test a sorted pair associative container.
     // Use a non-default comparison functor.
-    map<int, string, greater<>> m;
+    map<int, string, greater<> > m;
     m[20] = "twenty";
     m[10] = "ten";
     m[30] = "thirty";
     ostringstream ss;
     ss << m;
     EXPECT_EQ(ss.str(), "(30, thirty) (20, twenty) (10, ten)");
-    map<int, string, greater<>> copied_m(m);
+    map<int, string, greater<> > copied_m(m);
     CHECK_EQ(m, copied_m);  // This must compile.
   }
 }

src/symbolize.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -49,123 +49,111 @@
 // macro to add platform specific defines (e.g. GLOG_OS_OPENBSD).
 
 #ifdef GLOG_BUILD_CONFIG_INCLUDE
-#  include GLOG_BUILD_CONFIG_INCLUDE
+#include GLOG_BUILD_CONFIG_INCLUDE
 #endif  // GLOG_BUILD_CONFIG_INCLUDE
 
-#include "symbolize.h"
-
 #include "utilities.h"
 
 #if defined(HAVE_SYMBOLIZE)
 
-#  include <algorithm>
+#include <cstring>
-#  include <cstdlib>
-#  include <cstring>
-#  include <limits>
 
-#  include "demangle.h"
+#include <algorithm>
+#include <limits>
+
+#include "symbolize.h"
+#include "demangle.h"
+
+_START_GOOGLE_NAMESPACE_
 
 // We don't use assert() since it's not guaranteed to be
 // async-signal-safe.  Instead we define a minimal assertion
 // macro. So far, we don't need pretty printing for __FILE__, etc.
-#  define GLOG_SAFE_ASSERT(expr) ((expr) ? 0 : (std::abort(), 0))
 
-namespace google {
+// A wrapper for abort() to make it callable in ? :.
-inline namespace glog_internal_namespace_ {
+static int AssertFail() {
-
+  abort();
-namespace {
+  return 0;  // Should not reach.
-
-SymbolizeCallback g_symbolize_callback = nullptr;
-SymbolizeOpenObjectFileCallback g_symbolize_open_object_file_callback = nullptr;
-
-// This function wraps the Demangle function to provide an interface
-// where the input symbol is demangled in-place.
-// To keep stack consumption low, we would like this function to not
-// get inlined.
-ATTRIBUTE_NOINLINE
-void DemangleInplace(char* out, size_t out_size) {
-  char demangled[256];  // Big enough for sane demangled symbols.
-  if (Demangle(out, demangled, sizeof(demangled))) {
-    // Demangling succeeded. Copy to out if the space allows.
-    size_t len = strlen(demangled);
-    if (len + 1 <= out_size) {  // +1 for '\0'.
-      GLOG_SAFE_ASSERT(len < sizeof(demangled));
-      memmove(out, demangled, len + 1);
-    }
-  }
 }
 
-}  // namespace
+#define SAFE_ASSERT(expr) ((expr) ? 0 : AssertFail())
 
+static SymbolizeCallback g_symbolize_callback = nullptr;
 void InstallSymbolizeCallback(SymbolizeCallback callback) {
   g_symbolize_callback = callback;
 }
 
+static SymbolizeOpenObjectFileCallback g_symbolize_open_object_file_callback =
+    nullptr;
 void InstallSymbolizeOpenObjectFileCallback(
     SymbolizeOpenObjectFileCallback callback) {
   g_symbolize_open_object_file_callback = callback;
 }
 
-}  // namespace glog_internal_namespace_
+// This function wraps the Demangle function to provide an interface
-}  // namespace google
+// where the input symbol is demangled in-place.
-
+// To keep stack consumption low, we would like this function to not
-#  if defined(HAVE_LINK_H)
+// get inlined.
-
+static ATTRIBUTE_NOINLINE void DemangleInplace(char *out, size_t out_size) {
-#    if defined(HAVE_DLFCN_H)
+  char demangled[256];  // Big enough for sane demangled symbols.
-#      include <dlfcn.h>
+  if (Demangle(out, demangled, sizeof(demangled))) {
-#    endif
+    // Demangling succeeded. Copy to out if the space allows.
-#    include <fcntl.h>
+    size_t len = strlen(demangled);
-#    include <sys/stat.h>
+    if (len + 1 <= out_size) {  // +1 for '\0'.
-#    include <sys/types.h>
+      SAFE_ASSERT(len < sizeof(demangled));
-#    include <unistd.h>
+      memmove(out, demangled, len + 1);
-
+    }
-#    include <cerrno>
-#    include <climits>
-#    include <cstddef>
-#    include <cstdint>
-#    include <cstdio>
-#    include <cstdlib>
-#    include <cstring>
-
-#    include "config.h"
-#    include "glog/raw_logging.h"
-#    include "symbolize.h"
-
-namespace google {
-inline namespace glog_internal_namespace_ {
-
-namespace {
-
-// Re-runs run until it doesn't cause EINTR.
-// Similar to the TEMP_FAILURE_RETRY macro from GNU C.
-template <class Functor>
-auto FailureRetry(Functor run, int error = EINTR) noexcept(noexcept(run())) {
-  decltype(run()) result;
-
-  while ((result = run()) == -1 && errno == error) {
   }
-
-  return result;
 }
 
-}  // namespace
+_END_GOOGLE_NAMESPACE_
+
+#if defined(__ELF__)
+
+#if defined(HAVE_DLFCN_H)
+#include <dlfcn.h>
+#endif
+#if defined(GLOG_OS_OPENBSD)
+#include <sys/exec_elf.h>
+#else
+#include <elf.h>
+#endif
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <cerrno>
+#include <climits>
+#include <cstddef>
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+
+#include "config.h"
+#include "glog/raw_logging.h"
+#include "symbolize.h"
+
+// Re-runs fn until it doesn't cause EINTR.
+#define NO_INTR(fn)   do {} while ((fn) < 0 && errno == EINTR)
+
+_START_GOOGLE_NAMESPACE_
 
 // Read up to "count" bytes from "offset" in the file pointed by file
 // descriptor "fd" into the buffer starting at "buf" while handling short reads
 // and EINTR.  On success, return the number of bytes read.  Otherwise, return
 // -1.
-static ssize_t ReadFromOffset(const int fd, void* buf, const size_t count,
+static ssize_t ReadFromOffset(const int fd, void *buf, const size_t count,
                               const size_t offset) {
-  GLOG_SAFE_ASSERT(fd >= 0);
+  SAFE_ASSERT(fd >= 0);
-  GLOG_SAFE_ASSERT(count <=
+  SAFE_ASSERT(count <= static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
-                   static_cast<size_t>(std::numeric_limits<ssize_t>::max()));
+  char *buf0 = reinterpret_cast<char *>(buf);
-  char* buf0 = reinterpret_cast<char*>(buf);
   size_t num_bytes = 0;
   while (num_bytes < count) {
-    ssize_t len = FailureRetry([fd, p = buf0 + num_bytes, n = count - num_bytes,
+    ssize_t len;
-                                m = static_cast<off_t>(offset + num_bytes)] {
+    NO_INTR(len = pread(fd, buf0 + num_bytes, count - num_bytes,
-      return pread(fd, p, n, m);
+                        static_cast<off_t>(offset + num_bytes)));
-    });
     if (len < 0) {  // There was an error other than EINTR.
       return -1;
     }
@@ -174,7 +162,7 @@ static ssize_t ReadFromOffset(const int fd, void* buf, const size_t count,
     }
     num_bytes += static_cast<size_t>(len);
   }
-  GLOG_SAFE_ASSERT(num_bytes <= count);
+  SAFE_ASSERT(num_bytes <= count);
   return static_cast<ssize_t>(num_bytes);
 }
 
@@ -182,8 +170,8 @@ static ssize_t ReadFromOffset(const int fd, void* buf, const size_t count,
 // pointed by "fd" into the buffer starting at "buf" while handling
 // short reads and EINTR.  On success, return true. Otherwise, return
 // false.
-static bool ReadFromOffsetExact(const int fd, void* buf, const size_t count,
+static bool ReadFromOffsetExact(const int fd, void *buf,
-                                const size_t offset) {
+                                const size_t count, const size_t offset) {
   ssize_t len = ReadFromOffset(fd, buf, count, offset);
   return static_cast<size_t>(len) == count;
 }
@@ -205,11 +193,9 @@ static int FileGetElfType(const int fd) {
 // and return true.  Otherwise, return false.
 // To keep stack consumption low, we would like this function to not get
 // inlined.
-static ATTRIBUTE_NOINLINE bool GetSectionHeaderByType(const int fd,
+static ATTRIBUTE_NOINLINE bool
-                                                      ElfW(Half) sh_num,
+GetSectionHeaderByType(const int fd, ElfW(Half) sh_num, const size_t sh_offset,
-                                                      const size_t sh_offset,
+                       ElfW(Word) type, ElfW(Shdr) *out) {
-                                                      ElfW(Word) type,
-                                                      ElfW(Shdr) * out) {
   // Read at most 16 section headers at a time to save read calls.
   ElfW(Shdr) buf[16];
   for (size_t i = 0; i < sh_num;) {
@@ -221,9 +207,9 @@ static ATTRIBUTE_NOINLINE bool GetSectionHeaderByType(const int fd,
     if (len == -1) {
       return false;
     }
-    GLOG_SAFE_ASSERT(static_cast<size_t>(len) % sizeof(buf[0]) == 0);
+    SAFE_ASSERT(static_cast<size_t>(len) % sizeof(buf[0]) == 0);
     const size_t num_headers_in_buf = static_cast<size_t>(len) / sizeof(buf[0]);
-    GLOG_SAFE_ASSERT(num_headers_in_buf <= sizeof(buf) / sizeof(buf[0]));
+    SAFE_ASSERT(num_headers_in_buf <= sizeof(buf) / sizeof(buf[0]));
     for (size_t j = 0; j < num_headers_in_buf; ++j) {
       if (buf[j].sh_type == type) {
         *out = buf[j];
@@ -240,8 +226,8 @@ static ATTRIBUTE_NOINLINE bool GetSectionHeaderByType(const int fd,
 const int kMaxSectionNameLen = 64;
 
 // name_len should include terminating '\0'.
-bool GetSectionHeaderByName(int fd, const char* name, size_t name_len,
+bool GetSectionHeaderByName(int fd, const char *name, size_t name_len,
-                            ElfW(Shdr) * out) {
+                            ElfW(Shdr) *out) {
   ElfW(Ehdr) elf_header;
   if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
     return false;
@@ -256,17 +242,15 @@ bool GetSectionHeaderByName(int fd, const char* name, size_t name_len,
   }
 
   for (size_t i = 0; i < elf_header.e_shnum; ++i) {
-    size_t section_header_offset =
+    size_t section_header_offset = (elf_header.e_shoff +
-        (elf_header.e_shoff + elf_header.e_shentsize * i);
+                                   elf_header.e_shentsize * i);
     if (!ReadFromOffsetExact(fd, out, sizeof(*out), section_header_offset)) {
       return false;
     }
     char header_name[kMaxSectionNameLen];
     if (sizeof(header_name) < name_len) {
-      RAW_LOG(WARNING,
+      RAW_LOG(WARNING, "Section name '%s' is too long (%" PRIuS "); "
-              "Section name '%s' is too long (%zu); "
+              "section will not be found (even if present).", name, name_len);
-              "section will not be found (even if present).",
-              name, name_len);
       // No point in even trying.
       return false;
     }
@@ -291,11 +275,10 @@ bool GetSectionHeaderByName(int fd, const char* name, size_t name_len,
 // to out.  Otherwise, return false.
 // To keep stack consumption low, we would like this function to not get
 // inlined.
-static ATTRIBUTE_NOINLINE bool FindSymbol(uint64_t pc, const int fd, char* out,
+static ATTRIBUTE_NOINLINE bool
-                                          size_t out_size,
+FindSymbol(uint64_t pc, const int fd, char *out, size_t out_size,
-                                          uint64_t symbol_offset,
+           uint64_t symbol_offset, const ElfW(Shdr) *strtab,
-                                          const ElfW(Shdr) * strtab,
+           const ElfW(Shdr) *symtab) {
-                                          const ElfW(Shdr) * symtab) {
   if (symtab == nullptr) {
     return false;
   }
@@ -306,20 +289,20 @@ static ATTRIBUTE_NOINLINE bool FindSymbol(uint64_t pc, const int fd, char* out,
     // If we are reading Elf64_Sym's, we want to limit this array to
     // 32 elements (to keep stack consumption low), otherwise we can
     // have a 64 element Elf32_Sym array.
-#    if defined(__WORDSIZE) && __WORDSIZE == 64
+#if defined(__WORDSIZE) && __WORDSIZE == 64
     const size_t NUM_SYMBOLS = 32U;
-#    else
+#else
     const size_t NUM_SYMBOLS = 64U;
-#    endif
+#endif
 
     // Read at most NUM_SYMBOLS symbols at once to save read() calls.
     ElfW(Sym) buf[NUM_SYMBOLS];
     size_t num_symbols_to_read = std::min(NUM_SYMBOLS, num_symbols - i);
     const ssize_t len =
         ReadFromOffset(fd, &buf, sizeof(buf[0]) * num_symbols_to_read, offset);
-    GLOG_SAFE_ASSERT(static_cast<size_t>(len) % sizeof(buf[0]) == 0);
+    SAFE_ASSERT(static_cast<size_t>(len) % sizeof(buf[0]) == 0);
     const size_t num_symbols_in_buf = static_cast<size_t>(len) / sizeof(buf[0]);
-    GLOG_SAFE_ASSERT(num_symbols_in_buf <= num_symbols_to_read);
+    SAFE_ASSERT(num_symbols_in_buf <= num_symbols_to_read);
     for (unsigned j = 0; j < num_symbols_in_buf; ++j) {
       const ElfW(Sym)& symbol = buf[j];
       uint64_t start_address = symbol.st_value;
@@ -346,8 +329,11 @@ static ATTRIBUTE_NOINLINE bool FindSymbol(uint64_t pc, const int fd, char* out,
 // both regular and dynamic symbol tables if necessary.  On success,
 // write the symbol name to "out" and return true.  Otherwise, return
 // false.
-static bool GetSymbolFromObjectFile(const int fd, uint64_t pc, char* out,
+static bool GetSymbolFromObjectFile(const int fd,
-                                    size_t out_size, uint64_t base_address) {
+                                    uint64_t pc,
+                                    char* out,
+                                    size_t out_size,
+                                    uint64_t base_address) {
   // Read the ELF header.
   ElfW(Ehdr) elf_header;
   if (!ReadFromOffsetExact(fd, &elf_header, sizeof(elf_header), 0)) {
@@ -359,9 +345,8 @@ static bool GetSymbolFromObjectFile(const int fd, uint64_t pc, char* out,
   // Consult a regular symbol table first.
   if (GetSectionHeaderByType(fd, elf_header.e_shnum, elf_header.e_shoff,
                              SHT_SYMTAB, &symtab)) {
-    if (!ReadFromOffsetExact(
+    if (!ReadFromOffsetExact(fd, &strtab, sizeof(strtab), elf_header.e_shoff +
-            fd, &strtab, sizeof(strtab),
+                             symtab.sh_link * sizeof(symtab))) {
-            elf_header.e_shoff + symtab.sh_link * sizeof(symtab))) {
       return false;
     }
     if (FindSymbol(pc, fd, out, out_size, base_address, &strtab, &symtab)) {
@@ -372,9 +357,8 @@ static bool GetSymbolFromObjectFile(const int fd, uint64_t pc, char* out,
   // If the symbol is not found, then consult a dynamic symbol table.
   if (GetSectionHeaderByType(fd, elf_header.e_shnum, elf_header.e_shoff,
                              SHT_DYNSYM, &symtab)) {
-    if (!ReadFromOffsetExact(
+    if (!ReadFromOffsetExact(fd, &strtab, sizeof(strtab), elf_header.e_shoff +
-            fd, &strtab, sizeof(strtab),
+                             symtab.sh_link * sizeof(symtab))) {
-            elf_header.e_shoff + symtab.sh_link * sizeof(symtab))) {
       return false;
     }
     if (FindSymbol(pc, fd, out, out_size, base_address, &strtab, &symtab)) {
@@ -386,15 +370,31 @@ static bool GetSymbolFromObjectFile(const int fd, uint64_t pc, char* out,
 }
 
 namespace {
+// Thin wrapper around a file descriptor so that the file descriptor
+// gets closed for sure.
+struct FileDescriptor {
+  const int fd_;
+  explicit FileDescriptor(int fd) : fd_(fd) {}
+  ~FileDescriptor() {
+    if (fd_ >= 0) {
+      close(fd_);
+    }
+  }
+  int get() { return fd_; }
+
+ private:
+  FileDescriptor(const FileDescriptor &) = delete;
+  void operator=(const FileDescriptor &) = delete;
+};
 
 // Helper class for reading lines from file.
 //
 // Note: we don't use ProcMapsIterator since the object is big (it has
 // a 5k array member) and uses async-unsafe functions such as sscanf()
-// and std::snprintf().
+// and snprintf().
 class LineReader {
  public:
-  explicit LineReader(int fd, char* buf, size_t buf_len, size_t offset)
+  explicit LineReader(int fd, char *buf, size_t buf_len, size_t offset)
       : fd_(fd),
         buf_(buf),
         buf_len_(buf_len),
@@ -408,7 +408,7 @@ class LineReader {
   //
   // Note: if the last line doesn't end with '\n', the line will be
   // dropped.  It's an intentional behavior to make the code simple.
-  bool ReadLine(const char** bol, const char** eol) {
+  bool ReadLine(const char **bol, const char **eol) {
     if (BufferIsEmpty()) {  // First time.
       const ssize_t num_bytes = ReadFromOffset(fd_, buf_, buf_len_, offset_);
       if (num_bytes <= 0) {  // EOF or error.
@@ -419,13 +419,13 @@ class LineReader {
       bol_ = buf_;
     } else {
       bol_ = eol_ + 1;  // Advance to the next line in the buffer.
-      GLOG_SAFE_ASSERT(bol_ <= eod_);  // "bol_" can point to "eod_".
+      SAFE_ASSERT(bol_ <= eod_);  // "bol_" can point to "eod_".
       if (!HasCompleteLine()) {
         const auto incomplete_line_length = static_cast<size_t>(eod_ - bol_);
         // Move the trailing incomplete line to the beginning.
         memmove(buf_, bol_, incomplete_line_length);
         // Read text from file and append it.
-        char* const append_pos = buf_ + incomplete_line_length;
+        char * const append_pos = buf_ + incomplete_line_length;
         const size_t capacity_left = buf_len_ - incomplete_line_length;
         const ssize_t num_bytes =
             ReadFromOffset(fd_, append_pos, capacity_left, offset_);
@@ -449,53 +449,57 @@ class LineReader {
   }
 
   // Beginning of line.
-  const char* bol() { return bol_; }
+  const char *bol() {
-
+    return bol_;
-  // End of line.
-  const char* eol() { return eol_; }
-
- private:
-  LineReader(const LineReader&) = delete;
-  void operator=(const LineReader&) = delete;
-
-  char* FindLineFeed() {
-    return reinterpret_cast<char*>(
-        memchr(bol_, '\n', static_cast<size_t>(eod_ - bol_)));
   }
 
-  bool BufferIsEmpty() { return buf_ == eod_; }
+  // End of line.
+  const char *eol() {
+    return eol_;
+  }
+
+ private:
+  LineReader(const LineReader &) = delete;
+  void operator=(const LineReader &) = delete;
+
+  char *FindLineFeed() {
+    return reinterpret_cast<char *>(memchr(bol_, '\n', static_cast<size_t>(eod_ - bol_)));
+  }
+
+  bool BufferIsEmpty() {
+    return buf_ == eod_;
+  }
 
   bool HasCompleteLine() {
     return !BufferIsEmpty() && FindLineFeed() != nullptr;
   }
 
   const int fd_;
-  char* const buf_;
+  char * const buf_;
   const size_t buf_len_;
   size_t offset_;
-  char* bol_;
+  char *bol_;
-  char* eol_;
+  char *eol_;
-  const char* eod_;  // End of data in "buf_".
+  const char *eod_;  // End of data in "buf_".
 };
 }  // namespace
 
 // Place the hex number read from "start" into "*hex".  The pointer to
 // the first non-hex character or "end" is returned.
-static char* GetHex(const char* start, const char* end, uint64_t* hex) {
+static char *GetHex(const char *start, const char *end, uint64_t *hex) {
   *hex = 0;
-  const char* p;
+  const char *p;
   for (p = start; p < end; ++p) {
     int ch = *p;
-    if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'F') ||
+    if ((ch >= '0' && ch <= '9') ||
-        (ch >= 'a' && ch <= 'f')) {
+        (ch >= 'A' && ch <= 'F') || (ch >= 'a' && ch <= 'f')) {
-      *hex = (*hex << 4U) |
+      *hex = (*hex << 4U) | (ch < 'A' ? static_cast<uint64_t>(ch - '0') : (ch & 0xF) + 9U);
-             (ch < 'A' ? static_cast<uint64_t>(ch - '0') : (ch & 0xF) + 9U);
     } else {  // Encountered the first non-hex character.
       break;
     }
   }
-  GLOG_SAFE_ASSERT(p <= end);
+  SAFE_ASSERT(p <= end);
-  return const_cast<char*>(p);
+  return const_cast<char *>(p);
 }
 
 // Searches for the object file (from /proc/self/maps) that contains
@@ -506,33 +510,37 @@ static char* GetHex(const char* start, const char* end, uint64_t* hex) {
 // file is opened successfully, returns the file descriptor.  Otherwise,
 // returns -1.  |out_file_name_size| is the size of the file name buffer
 // (including the null-terminator).
-static ATTRIBUTE_NOINLINE FileDescriptor
+static ATTRIBUTE_NOINLINE int
 OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
-                                             uint64_t& start_address,
+                                             uint64_t &start_address,
-                                             uint64_t& base_address,
+                                             uint64_t &base_address,
-                                             char* out_file_name,
+                                             char *out_file_name,
                                              size_t out_file_name_size) {
-  FileDescriptor maps_fd{
+  int object_fd;
-      FailureRetry([] { return open("/proc/self/maps", O_RDONLY); })};
+
-  if (!maps_fd) {
+  int maps_fd;
-    return nullptr;
+  NO_INTR(maps_fd = open("/proc/self/maps", O_RDONLY));
+  FileDescriptor wrapped_maps_fd(maps_fd);
+  if (wrapped_maps_fd.get() < 0) {
+    return -1;
   }
 
-  FileDescriptor mem_fd{
+  int mem_fd;
-      FailureRetry([] { return open("/proc/self/mem", O_RDONLY); })};
+  NO_INTR(mem_fd = open("/proc/self/mem", O_RDONLY));
-  if (!mem_fd) {
+  FileDescriptor wrapped_mem_fd(mem_fd);
-    return nullptr;
+  if (wrapped_mem_fd.get() < 0) {
+    return -1;
   }
 
   // Iterate over maps and look for the map containing the pc.  Then
   // look into the symbol tables inside.
   char buf[1024];  // Big enough for line of sane /proc/self/maps
-  LineReader reader(maps_fd.get(), buf, sizeof(buf), 0);
+  LineReader reader(wrapped_maps_fd.get(), buf, sizeof(buf), 0);
   while (true) {
-    const char* cursor;
+    const char *cursor;
-    const char* eol;
+    const char *eol;
     if (!reader.ReadLine(&cursor, &eol)) {  // EOF or malformed line.
-      return nullptr;
+      return -1;
     }
 
     // Start parsing line in /proc/self/maps.  Here is an example:
@@ -545,7 +553,7 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
     // Read start address.
     cursor = GetHex(cursor, eol, &start_address);
     if (cursor == eol || *cursor != '-') {
-      return nullptr;  // Malformed line.
+      return -1;  // Malformed line.
     }
     ++cursor;  // Skip '-'.
 
@@ -553,26 +561,25 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
     uint64_t end_address;
     cursor = GetHex(cursor, eol, &end_address);
     if (cursor == eol || *cursor != ' ') {
-      return nullptr;  // Malformed line.
+      return -1;  // Malformed line.
     }
     ++cursor;  // Skip ' '.
 
     // Read flags.  Skip flags until we encounter a space or eol.
-    const char* const flags_start = cursor;
+    const char * const flags_start = cursor;
     while (cursor < eol && *cursor != ' ') {
       ++cursor;
     }
     // We expect at least four letters for flags (ex. "r-xp").
     if (cursor == eol || cursor < flags_start + 4) {
-      return nullptr;  // Malformed line.
+      return -1;  // Malformed line.
     }
 
     // Determine the base address by reading ELF headers in process memory.
     ElfW(Ehdr) ehdr;
     // Skip non-readable maps.
     if (flags_start[0] == 'r' &&
-        ReadFromOffsetExact(mem_fd.get(), &ehdr, sizeof(ElfW(Ehdr)),
+        ReadFromOffsetExact(mem_fd, &ehdr, sizeof(ElfW(Ehdr)), start_address) &&
-                            start_address) &&
         memcmp(ehdr.e_ident, ELFMAG, SELFMAG) == 0) {
       switch (ehdr.e_type) {
         case ET_EXEC:
@@ -591,7 +598,7 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
           for (unsigned i = 0; i != ehdr.e_phnum; ++i) {
             ElfW(Phdr) phdr;
             if (ReadFromOffsetExact(
-                    mem_fd.get(), &phdr, sizeof(phdr),
+                    mem_fd, &phdr, sizeof(phdr),
                     start_address + ehdr.e_phoff + i * sizeof(phdr)) &&
                 phdr.p_type == PT_LOAD && phdr.p_offset == 0) {
               base_address = start_address - phdr.p_vaddr;
@@ -607,11 +614,11 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
     }
 
     // Check start and end addresses.
-    if (start_address > pc || pc >= end_address) {
+    if (!(start_address <= pc && pc < end_address)) {
       continue;  // We skip this map.  PC isn't in this map.
     }
 
-    // Check flags.  We are only interested in "r*x" maps.
+   // Check flags.  We are only interested in "r*x" maps.
     if (flags_start[0] != 'r' || flags_start[2] != 'x') {
       continue;  // We skip this map.
     }
@@ -621,7 +628,7 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
     uint64_t file_offset;
     cursor = GetHex(cursor, eol, &file_offset);
     if (cursor == eol || *cursor != ' ') {
-      return nullptr;  // Malformed line.
+      return -1;  // Malformed line.
     }
     ++cursor;  // Skip ' '.
 
@@ -639,16 +646,20 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
       ++cursor;
     }
     if (cursor == eol) {
-      return nullptr;  // Malformed line.
+      return -1;  // Malformed line.
     }
 
-    strncpy(out_file_name, cursor, out_file_name_size);
-    // Making sure |out_file_name| is always null-terminated.
-    out_file_name[out_file_name_size - 1] = '\0';
-
     // Finally, "cursor" now points to file name of our interest.
-    return FileDescriptor{
+    NO_INTR(object_fd = open(cursor, O_RDONLY));
-        FailureRetry([cursor] { return open(cursor, O_RDONLY); })};
+    if (object_fd < 0) {
+      // Failed to open object file.  Copy the object file name to
+      // |out_file_name|.
+      strncpy(out_file_name, cursor, out_file_name_size);
+      // Making sure |out_file_name| is always null-terminated.
+      out_file_name[out_file_name_size - 1] = '\0';
+      return -1;
+    }
+    return object_fd;
   }
 }
 
@@ -659,8 +670,7 @@ OpenObjectFileContainingPcAndGetStartAddress(uint64_t pc,
 // "sz" bytes. Output will be truncated as needed, and a NUL character is always
 // appended.
 // NOTE: code from sandbox/linux/seccomp-bpf/demo.cc.
-static char* itoa_r(uintptr_t i, char* buf, size_t sz, unsigned base,
+static char *itoa_r(uintptr_t i, char *buf, size_t sz, unsigned base, size_t padding) {
-                    size_t padding) {
   // Make sure we can write at least one NUL byte.
   size_t n = 1;
   if (n > sz) {
@@ -672,11 +682,11 @@ static char* itoa_r(uintptr_t i, char* buf, size_t sz, unsigned base,
     return nullptr;
   }
 
-  char* start = buf;
+  char *start = buf;
 
   // Loop until we have converted the entire number. Output at least one
   // character (i.e. '0').
-  char* ptr = start;
+  char *ptr = start;
   do {
     // Make sure there is still enough space left in our output buffer.
     if (++n > sz) {
@@ -712,7 +722,7 @@ static char* itoa_r(uintptr_t i, char* buf, size_t sz, unsigned base,
 // buffer size |dest_size| and guarantees that |dest| is null-terminated.
 static void SafeAppendString(const char* source, char* dest, size_t dest_size) {
   size_t dest_string_length = strlen(dest);
-  GLOG_SAFE_ASSERT(dest_string_length < dest_size);
+  SAFE_ASSERT(dest_string_length < dest_size);
   dest += dest_string_length;
   dest_size -= dest_string_length;
   strncpy(dest, source, dest_size);
@@ -737,12 +747,12 @@ static void SafeAppendHexNumber(uint64_t value, char* dest, size_t dest_size) {
 // and "out" is used as its output.
 // To keep stack consumption low, we would like this function to not
 // get inlined.
-static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(
+static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void *pc, char *out,
-    void* pc, char* out, size_t out_size, SymbolizeOptions /*options*/) {
+                                                    size_t out_size) {
   auto pc0 = reinterpret_cast<uintptr_t>(pc);
   uint64_t start_address = 0;
   uint64_t base_address = 0;
-  FileDescriptor object_fd;
+  int object_fd = -1;
 
   if (out_size < 1) {
     return false;
@@ -751,19 +761,24 @@ static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(
   SafeAppendString("(", out, out_size);
 
   if (g_symbolize_open_object_file_callback) {
-    object_fd.reset(g_symbolize_open_object_file_callback(
+    object_fd = g_symbolize_open_object_file_callback(pc0, start_address,
-        pc0, start_address, base_address, out + 1, out_size - 1));
+                                                      base_address, out + 1,
+                                                      out_size - 1);
   } else {
-    object_fd = OpenObjectFileContainingPcAndGetStartAddress(
+    object_fd = OpenObjectFileContainingPcAndGetStartAddress(pc0, start_address,
-        pc0, start_address, base_address, out + 1, out_size - 1);
+                                                             base_address,
+                                                             out + 1,
+                                                             out_size - 1);
   }
 
-#    if defined(PRINT_UNSYMBOLIZED_STACK_TRACES)
+  FileDescriptor wrapped_object_fd(object_fd);
+
+#if defined(PRINT_UNSYMBOLIZED_STACK_TRACES)
   {
-#    else
+#else
   // Check whether a file name was returned.
-  if (!object_fd) {
+  if (object_fd < 0) {
-#    endif
+#endif
     if (out[1]) {
       // The object file containing PC was determined successfully however the
       // object file was not opened successfully.  This is still considered
@@ -778,7 +793,7 @@ static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(
     // Failed to determine the object file containing PC.  Bail out.
     return false;
   }
-  int elf_type = FileGetElfType(object_fd.get());
+  int elf_type = FileGetElfType(wrapped_object_fd.get());
   if (elf_type == -1) {
     return false;
   }
@@ -787,15 +802,16 @@ static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(
     // Note: relocation (and much of the rest of this code) will be
     // wrong for prelinked shared libraries and PIE executables.
     uint64_t relocation = (elf_type == ET_DYN) ? start_address : 0;
-    int num_bytes_written =
+    int num_bytes_written = g_symbolize_callback(wrapped_object_fd.get(),
-        g_symbolize_callback(object_fd.get(), pc, out, out_size, relocation);
+                                                 pc, out, out_size,
+                                                 relocation);
     if (num_bytes_written > 0) {
       out += static_cast<size_t>(num_bytes_written);
       out_size -= static_cast<size_t>(num_bytes_written);
     }
   }
-  if (!GetSymbolFromObjectFile(object_fd.get(), pc0, out, out_size,
+  if (!GetSymbolFromObjectFile(wrapped_object_fd.get(), pc0,
-                               base_address)) {
+                               out, out_size, base_address)) {
     if (out[1] && !g_symbolize_callback) {
       // The object file containing PC was opened successfully however the
       // symbol was not found. The object may have been stripped. This is still
@@ -815,20 +831,17 @@ static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(
   return true;
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google
 
-#  elif defined(GLOG_OS_MACOSX) && defined(HAVE_DLADDR)
+#elif defined(GLOG_OS_MACOSX) && defined(HAVE_DLADDR)
 
-#    include <dlfcn.h>
+#include <dlfcn.h>
+#include <cstring>
 
-#    include <cstring>
+_START_GOOGLE_NAMESPACE_
 
-namespace google {
+static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void *pc, char *out,
-inline namespace glog_internal_namespace_ {
+                                                    size_t out_size) {
-
-static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(
-    void* pc, char* out, size_t out_size, SymbolizeOptions /*options*/) {
   Dl_info info;
   if (dladdr(pc, &info)) {
     if (info.dli_sname) {
@@ -843,30 +856,31 @@ static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(
   return false;
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google
 
-#  elif defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
+#elif defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
 
-#    include <dbghelp.h>
+#include <windows.h>
-#    include <windows.h>
+#include <dbghelp.h>
 
-namespace google {
+#ifdef _MSC_VER
-inline namespace glog_internal_namespace_ {
+#pragma comment(lib, "dbghelp")
+#endif
 
-namespace {
+_START_GOOGLE_NAMESPACE_
 
-class SymInitializer final {
+class SymInitializer {
- public:
+public:
   HANDLE process;
   bool ready;
-  SymInitializer() : process(GetCurrentProcess()), ready(false) {
+  SymInitializer() : process(nullptr), ready(false) {
     // Initialize the symbol handler.
     // https://msdn.microsoft.com/en-us/library/windows/desktop/ms680344(v=vs.85).aspx
+    process = GetCurrentProcess();
     // Defer symbol loading.
     // We do not request undecorated symbols with SYMOPT_UNDNAME
     // because the mangling library calls UnDecorateSymbolName.
-    SymSetOptions(SYMOPT_DEFERRED_LOADS | SYMOPT_LOAD_LINES);
+    SymSetOptions(SYMOPT_DEFERRED_LOADS);
     if (SymInitialize(process, nullptr, true)) {
       ready = true;
     }
@@ -875,18 +889,13 @@ class SymInitializer final {
     SymCleanup(process);
     // We do not need to close `HANDLE process` because it's a "pseudo handle."
   }
-
+private:
-  SymInitializer(const SymInitializer&) = delete;
+  SymInitializer(const SymInitializer&);
-  SymInitializer& operator=(const SymInitializer&) = delete;
+  SymInitializer& operator=(const SymInitializer&);
-  SymInitializer(SymInitializer&&) = delete;
-  SymInitializer& operator=(SymInitializer&&) = delete;
 };
 
-}  // namespace
+static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void *pc, char *out,
-
+                                                    size_t out_size) {
-static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void* pc, char* out,
-                                                    size_t out_size,
-                                                    SymbolizeOptions options) {
   const static SymInitializer symInitializer;
   if (!symInitializer.ready) {
     return false;
@@ -894,70 +903,52 @@ static ATTRIBUTE_NOINLINE bool SymbolizeAndDemangle(void* pc, char* out,
   // Resolve symbol information from address.
   // https://msdn.microsoft.com/en-us/library/windows/desktop/ms680578(v=vs.85).aspx
   char buf[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
-  SYMBOL_INFO* symbol = reinterpret_cast<SYMBOL_INFO*>(buf);
+  SYMBOL_INFO *symbol = reinterpret_cast<SYMBOL_INFO *>(buf);
   symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
   symbol->MaxNameLen = MAX_SYM_NAME;
   // We use the ANSI version to ensure the string type is always `char *`.
   // This could break if a symbol has Unicode in it.
-  BOOL ret = SymFromAddr(symInitializer.process, reinterpret_cast<DWORD64>(pc),
+  BOOL ret = SymFromAddr(symInitializer.process,
-                         0, symbol);
+                         reinterpret_cast<DWORD64>(pc), 0, symbol);
-  std::size_t namelen = static_cast<size_t>(symbol->NameLen);
+  if (ret == 1 && static_cast<ssize_t>(symbol->NameLen) < out_size) {
-  if (ret && namelen < out_size) {
+    // `NameLen` does not include the null terminating character.
-    std::strncpy(out, symbol->Name, namelen);
+    strncpy(out, symbol->Name, static_cast<size_t>(symbol->NameLen) + 1);
-    out[namelen] = '\0';
+    out[static_cast<size_t>(symbol->NameLen)] = '\0';
-
-    DWORD displacement;
-    IMAGEHLP_LINE64 line{sizeof(IMAGEHLP_LINE64)};
-
-    BOOL found = FALSE;
-
-    if ((options & SymbolizeOptions::kNoLineNumbers) !=
-        SymbolizeOptions::kNoLineNumbers) {
-      found = SymGetLineFromAddr64(symInitializer.process,
-                                   reinterpret_cast<DWORD64>(pc), &displacement,
-                                   &line);
-    }
-
     // Symbolization succeeded.  Now we try to demangle the symbol.
     DemangleInplace(out, out_size);
-    out_size -= std::strlen(out);
-
-    if (found) {
-      std::size_t fnlen = std::strlen(line.FileName);
-      // Determine the number of digits (base 10) necessary to represent the
-      // line number
-      std::size_t digits = 1;  // At least one digit required
-      for (DWORD value = line.LineNumber; (value /= 10) != 0; ++digits) {
-      }
-      constexpr std::size_t extralen = 4;  // space + parens () + :
-      const std::size_t suffixlen = fnlen + extralen + fnlen + digits;
-
-      if (suffixlen < out_size) {
-        out_size -= std::snprintf(out + namelen, out_size, " (%s:%lu)",
-                                  line.FileName, line.LineNumber);
-      }
-    }
-
     return true;
   }
   return false;
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google
 
-#  else
+#else
-#    error BUG: HAVE_SYMBOLIZE was wrongly set
+# error BUG: HAVE_SYMBOLIZE was wrongly set
-#  endif
+#endif
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
 
-bool Symbolize(void* pc, char* out, size_t out_size, SymbolizeOptions options) {
+bool Symbolize(void *pc, char *out, size_t out_size) {
-  return SymbolizeAndDemangle(pc, out, out_size, options);
+  return SymbolizeAndDemangle(pc, out, out_size);
 }
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google
+
+#else  /* HAVE_SYMBOLIZE */
+
+#include <cassert>
+
+#include "config.h"
+
+_START_GOOGLE_NAMESPACE_
+
+// TODO: Support other environments.
+bool Symbolize(void* /*pc*/, char* /*out*/, size_t /*out_size*/) {
+  assert(0);
+  return false;
+}
+
+_END_GOOGLE_NAMESPACE_
 
 #endif

src/symbolize.h

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -51,86 +51,59 @@
 // malloc() and other unsafe operations.  It should be both
 // thread-safe and async-signal-safe.
 
-#ifndef GLOG_INTERNAL_SYMBOLIZE_H
+#ifndef BASE_SYMBOLIZE_H_
-#define GLOG_INTERNAL_SYMBOLIZE_H
+#define BASE_SYMBOLIZE_H_
-
-#include <cstddef>
-#include <cstdint>
-#include <type_traits>
 
 #include "config.h"
-#include "glog/platform.h"
+#include "glog/logging.h"
-
+#include "utilities.h"
-#if defined(HAVE_LINK_H)
-#  include <link.h>  // For ElfW() macro.
-#elif defined(HAVE_ELF_H)
-#  include <elf.h>
-#elif defined(HAVE_SYS_EXEC_ELF_H)
-#  include <sys/exec_elf.h>
-#endif
-
-#if defined(GLOG_USE_GLOG_EXPORT)
-#  include "glog/export.h"
-#endif
-
-#if !defined(GLOG_NO_EXPORT)
-#  error "symbolize.h" was not included correctly.
-#endif
-
-// We prefer to let the build system detect the availability of certain features
-// such as symbolization support. HAVE_SYMBOLIZE should therefore be defined by
-// the build system in general unless there is a good reason to perform the
-// detection using the preprocessor.
-#ifndef GLOG_NO_SYMBOLIZE_DETECTION
-#  ifndef HAVE_SYMBOLIZE
-// defined by gcc
-#    if defined(HAVE_ELF_H) || defined(HAVE_SYS_EXEC_ELF_H)
-#      define HAVE_SYMBOLIZE
-#    elif defined(GLOG_OS_MACOSX) && defined(HAVE_DLADDR)
-// Use dladdr to symbolize.
-#      define HAVE_SYMBOLIZE
-#    elif defined(GLOG_OS_WINDOWS)
-// Use DbgHelp to symbolize
-#      define HAVE_SYMBOLIZE
-#    endif
-#  endif  // !defined(HAVE_SYMBOLIZE)
-#endif    // !defined(GLOG_NO_SYMBOLIZE_DETECTION)
 
 #ifdef HAVE_SYMBOLIZE
 
-#  if !defined(SIZEOF_VOID_P) && defined(__SIZEOF_POINTER__)
+#if defined(__ELF__)  // defined by gcc
-#    define SIZEOF_VOID_P __SIZEOF_POINTER__
+#if defined(__OpenBSD__)
-#  endif
+#include <sys/exec_elf.h>
+#else
+#include <elf.h>
+#endif
 
-#  if defined(HAVE_ELF_H) || defined(HAVE_SYS_EXEC_ELF_H)
+#if !defined(ANDROID)
+#include <link.h>  // For ElfW() macro.
+#endif
+
+// For systems where SIZEOF_VOID_P is not defined, determine it
+// based on __LP64__ (defined by gcc on 64-bit systems)
+#if !defined(SIZEOF_VOID_P)
+# if defined(__LP64__)
+#  define SIZEOF_VOID_P 8
+# else
+#  define SIZEOF_VOID_P 4
+# endif
+#endif
 
 // If there is no ElfW macro, let's define it by ourself.
-#    ifndef ElfW
+#ifndef ElfW
-#      if SIZEOF_VOID_P == 4
+# if SIZEOF_VOID_P == 4
-#        define ElfW(type) Elf32_##type
+#  define ElfW(type) Elf32_##type
-#      elif SIZEOF_VOID_P == 8
+# elif SIZEOF_VOID_P == 8
-#        define ElfW(type) Elf64_##type
+#  define ElfW(type) Elf64_##type
-#      else
+# else
-#        error "Unknown sizeof(void *)"
+#  error "Unknown sizeof(void *)"
-#      endif
+# endif
-#    endif
+#endif
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
 
 // Gets the section header for the given name, if it exists. Returns true on
 // success. Otherwise, returns false.
-GLOG_NO_EXPORT
+bool GetSectionHeaderByName(int fd, const char *name, size_t name_len,
-bool GetSectionHeaderByName(int fd, const char* name, size_t name_len,
+                            ElfW(Shdr) *out);
-                            ElfW(Shdr) * out);
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google
 
-#  endif
+#endif  /* __ELF__ */
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
 
 // Restrictions on the callbacks that follow:
 //  - The callbacks must not use heaps but only use stacks.
@@ -143,8 +116,8 @@ inline namespace glog_internal_namespace_ {
 // counter "pc". The callback function should write output to "out"
 // and return the size of the output written. On error, the callback
 // function should return -1.
-using SymbolizeCallback = int (*)(int, void*, char*, size_t, uint64_t);
+using SymbolizeCallback = int (*)(int, void *, char *, size_t, uint64_t);
-GLOG_NO_EXPORT
+GLOG_EXPORT
 void InstallSymbolizeCallback(SymbolizeCallback callback);
 
 // Installs a callback function, which will be called instead of
@@ -157,54 +130,23 @@ void InstallSymbolizeCallback(SymbolizeCallback callback);
 // file is opened successfully, returns the file descriptor.  Otherwise,
 // returns -1.  |out_file_name_size| is the size of the file name buffer
 // (including the null-terminator).
-using SymbolizeOpenObjectFileCallback = int (*)(uint64_t, uint64_t&, uint64_t&,
+using SymbolizeOpenObjectFileCallback = int (*)(uint64_t, uint64_t &,
-                                                char*, size_t);
+                                                uint64_t &, char *, size_t);
-GLOG_NO_EXPORT
 void InstallSymbolizeOpenObjectFileCallback(
     SymbolizeOpenObjectFileCallback callback);
 
-}  // namespace glog_internal_namespace_
+_END_GOOGLE_NAMESPACE_
-}  // namespace google
 
 #endif
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
-inline namespace glog_internal_namespace_ {
-
-#if defined(HAVE_SYMBOLIZE)
-
-enum class SymbolizeOptions {
-  // No additional options.
-  kNone = 0,
-  // Do not display source and line numbers in the symbolized output.
-  kNoLineNumbers = 1
-};
-
-constexpr SymbolizeOptions operator&(SymbolizeOptions lhs,
-                                     SymbolizeOptions rhs) noexcept {
-  return static_cast<SymbolizeOptions>(
-      static_cast<std::underlying_type_t<SymbolizeOptions>>(lhs) &
-      static_cast<std::underlying_type_t<SymbolizeOptions>>(rhs));
-}
-
-constexpr SymbolizeOptions operator|(SymbolizeOptions lhs,
-                                     SymbolizeOptions rhs) noexcept {
-  return static_cast<SymbolizeOptions>(
-      static_cast<std::underlying_type_t<SymbolizeOptions>>(lhs) |
-      static_cast<std::underlying_type_t<SymbolizeOptions>>(rhs));
-}
 
 // Symbolizes a program counter.  On success, returns true and write the
 // symbol name to "out".  The symbol name is demangled if possible
 // (supports symbols generated by GCC 3.x or newer).  Otherwise,
 // returns false.
-GLOG_NO_EXPORT bool Symbolize(
+GLOG_EXPORT bool Symbolize(void* pc, char* out, size_t out_size);
-    void* pc, char* out, size_t out_size,
-    SymbolizeOptions options = SymbolizeOptions::kNone);
 
-#endif  // defined(HAVE_SYMBOLIZE)
+_END_GOOGLE_NAMESPACE_
 
-}  // namespace glog_internal_namespace_
+#endif  // BASE_SYMBOLIZE_H_
-}  // namespace google
-
-#endif  // GLOG_INTERNAL_SYMBOLIZE_H

src/symbolize_unittest.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2006, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -40,57 +40,56 @@
 #include "glog/logging.h"
 #include "googletest.h"
 #include "utilities.h"
-#include "stacktrace.h"
 
-#ifdef GLOG_USE_GFLAGS
+#ifdef HAVE_LIB_GFLAGS
-#  include <gflags/gflags.h>
+#include <gflags/gflags.h>
 using namespace GFLAGS_NAMESPACE;
 #endif
 
 using namespace std;
-using namespace google;
+using namespace GOOGLE_NAMESPACE;
 
 // Avoid compile error due to "cast between pointer-to-function and
 // pointer-to-object is an extension" warnings.
 #if defined(__GNUG__)
-#  pragma GCC diagnostic push
+#pragma GCC diagnostic push
-#  pragma GCC diagnostic ignored "-Wpedantic"
+#pragma GCC diagnostic ignored "-Wpedantic"
 #endif
 
 #if defined(HAVE_STACKTRACE)
 
-#  define always_inline
+#define always_inline
 
-#  if defined(HAVE_ELF_H) || defined(HAVE_SYS_EXEC_ELF_H) || \
+#if defined(__ELF__) || defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
-      defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
 // A wrapper function for Symbolize() to make the unit test simple.
-static const char* TrySymbolize(void* pc, google::SymbolizeOptions options =
+static const char *TrySymbolize(void *pc) {
-                                              google::SymbolizeOptions::kNone) {
   static char symbol[4096];
-  if (Symbolize(pc, symbol, sizeof(symbol), options)) {
+  if (Symbolize(pc, symbol, sizeof(symbol))) {
     return symbol;
   } else {
     return nullptr;
   }
 }
-#  endif
+#endif
+
+# if defined(__ELF__)
 
-#  if defined(HAVE_ELF_H) || defined(HAVE_SYS_EXEC_ELF_H)
 // This unit tests make sense only with GCC.
 // Uses lots of GCC specific features.
-#    if defined(__GNUC__) && !defined(__OPENCC__)
+#if defined(__GNUC__) && !defined(__OPENCC__)
-#      if __GNUC__ >= 4
+#  if __GNUC__ >= 4
-#        define TEST_WITH_MODERN_GCC
+#    define TEST_WITH_MODERN_GCC
-#        if defined(__i386__) && __i386__  // always_inline isn't supported for
+#    if defined(__i386__) && __i386__  // always_inline isn't supported for x86_64 with GCC 4.1.0.
-                                           // x86_64 with GCC 4.1.0.
+#      undef always_inline
-#          undef always_inline
+#      define always_inline __attribute__((always_inline))
-#          define always_inline __attribute__((always_inline))
+#      define HAVE_ALWAYS_INLINE
-#          define HAVE_ALWAYS_INLINE
+#    endif  // __i386__
-#        endif  // __i386__
+#  else
-#      else
+#  endif  // __GNUC__ >= 4
-#      endif  // __GNUC__ >= 4
+#  if defined(__i386__) || defined(__x86_64__)
-#      define TEST_WITH_LABEL_ADDRESSES
+#    define TEST_X86_32_AND_64 1
-#    endif
+#  endif  // defined(__i386__) || defined(__x86_64__)
+#endif
 
 // Make them C linkage to avoid mangled names.
 extern "C" {
@@ -115,18 +114,18 @@ TEST(Symbolize, Symbolize) {
   // reinterpret_cast<void *>(&func).
 
   // Compilers should give us pointers to them.
-  EXPECT_STREQ("nonstatic_func", TrySymbolize((void*)(&nonstatic_func)));
+  EXPECT_STREQ("nonstatic_func", TrySymbolize((void *)(&nonstatic_func)));
 
   // The name of an internal linkage symbol is not specified; allow either a
   // mangled or an unmangled name here.
-  const char* static_func_symbol =
+  const char *static_func_symbol =
-      TrySymbolize(reinterpret_cast<void*>(&static_func));
+      TrySymbolize(reinterpret_cast<void *>(&static_func));
 
-#    if !defined(_MSC_VER) || !defined(NDEBUG)
+#if !defined(_MSC_VER) || !defined(NDEBUG)
   CHECK(nullptr != static_func_symbol);
   EXPECT_TRUE(strcmp("static_func", static_func_symbol) == 0 ||
               strcmp("static_func()", static_func_symbol) == 0);
-#    endif
+#endif
 
   EXPECT_TRUE(nullptr == TrySymbolize(nullptr));
 }
@@ -144,18 +143,14 @@ void ATTRIBUTE_NOINLINE Foo::func(int x) {
 
 // With a modern GCC, Symbolize() should return demangled symbol
 // names.  Function parameters should be omitted.
-#    ifdef TEST_WITH_MODERN_GCC
+#ifdef TEST_WITH_MODERN_GCC
 TEST(Symbolize, SymbolizeWithDemangling) {
   Foo::func(100);
-#      if !defined(_MSC_VER) || !defined(NDEBUG)
+#if !defined(_MSC_VER) || !defined(NDEBUG)
-#        if defined(HAVE___CXA_DEMANGLE)
+  EXPECT_STREQ("Foo::func()", TrySymbolize((void *)(&Foo::func)));
-  EXPECT_STREQ("Foo::func(int)", TrySymbolize((void*)(&Foo::func)));
+#endif
-#        else
-  EXPECT_STREQ("Foo::func()", TrySymbolize((void*)(&Foo::func)));
-#        endif
-#      endif
 }
-#    endif
+#endif
 
 // Tests that verify that Symbolize footprint is within some limit.
 
@@ -174,9 +169,9 @@ TEST(Symbolize, SymbolizeWithDemangling) {
 // calls Symbolize. The difference between the stack consumption of these
 // two signals handlers should give us the Symbolize stack foorprint.
 
-static void* g_pc_to_symbolize;
+static void *g_pc_to_symbolize;
 static char g_symbolize_buffer[4096];
-static char* g_symbolize_result;
+static char *g_symbolize_result;
 
 static void EmptySignalHandler(int /*signo*/) {}
 
@@ -195,7 +190,7 @@ const char kAlternateStackFillValue = 0x55;
 // These helper functions look at the alternate stack buffer, and figure
 // out what portion of this buffer has been touched - this is the stack
 // consumption of the signal handler running on this alternate stack.
-static ATTRIBUTE_NOINLINE bool StackGrowsDown(int* x) {
+static ATTRIBUTE_NOINLINE bool StackGrowsDown(int *x) {
   int y;
   return &y < x;
 }
@@ -217,10 +212,11 @@ static int GetStackConsumption(const char* alt_stack) {
   return -1;
 }
 
-#    ifdef HAVE_SIGALTSTACK
+#ifdef HAVE_SIGALTSTACK
 
 // Call Symbolize and figure out the stack footprint of this call.
-static const char* SymbolizeStackConsumption(void* pc, int* stack_consumed) {
+static const char *SymbolizeStackConsumption(void *pc, int *stack_consumed) {
+
   g_pc_to_symbolize = pc;
 
   // The alt-signal-stack cannot be heap allocated because there is a
@@ -288,131 +284,118 @@ static const char* SymbolizeStackConsumption(void* pc, int* stack_consumed) {
   return g_symbolize_result;
 }
 
-#      if !defined(HAVE___CXA_DEMANGLE)
+#ifdef __ppc64__
-#        ifdef __ppc64__
 // Symbolize stack consumption should be within 4kB.
-constexpr int kStackConsumptionUpperLimit = 4096;
+const int kStackConsumptionUpperLimit = 4096;
-#        else
+#else
 // Symbolize stack consumption should be within 2kB.
-constexpr int kStackConsumptionUpperLimit = 2048;
+const int kStackConsumptionUpperLimit = 2048;
-#        endif
+#endif
-#      endif
 
 TEST(Symbolize, SymbolizeStackConsumption) {
   int stack_consumed;
   const char* symbol;
 
-  symbol = SymbolizeStackConsumption(reinterpret_cast<void*>(&nonstatic_func),
+  symbol = SymbolizeStackConsumption(reinterpret_cast<void *>(&nonstatic_func),
                                      &stack_consumed);
   EXPECT_STREQ("nonstatic_func", symbol);
   EXPECT_GT(stack_consumed, 0);
-#      if !defined(HAVE___CXA_DEMANGLE)
   EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
-#      endif
 
   // The name of an internal linkage symbol is not specified; allow either a
   // mangled or an unmangled name here.
-  symbol = SymbolizeStackConsumption(reinterpret_cast<void*>(&static_func),
+  symbol = SymbolizeStackConsumption(reinterpret_cast<void *>(&static_func),
                                      &stack_consumed);
   CHECK(nullptr != symbol);
   EXPECT_TRUE(strcmp("static_func", symbol) == 0 ||
               strcmp("static_func()", symbol) == 0);
   EXPECT_GT(stack_consumed, 0);
-#      if !defined(HAVE___CXA_DEMANGLE)
   EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
-#      endif
 }
 
-#      if defined(TEST_WITH_MODERN_GCC) && !defined(HAVE___CXA_DEMANGLE)
+#ifdef TEST_WITH_MODERN_GCC
 TEST(Symbolize, SymbolizeWithDemanglingStackConsumption) {
   Foo::func(100);
   int stack_consumed;
   const char* symbol;
 
-  symbol = SymbolizeStackConsumption(reinterpret_cast<void*>(&Foo::func),
+  symbol = SymbolizeStackConsumption(reinterpret_cast<void *>(&Foo::func),
                                      &stack_consumed);
 
-#        if defined(HAVE___CXA_DEMANGLE)
-  EXPECT_STREQ("Foo::func(int)", symbol);
-#        else
   EXPECT_STREQ("Foo::func()", symbol);
-#        endif
   EXPECT_GT(stack_consumed, 0);
   EXPECT_LT(stack_consumed, kStackConsumptionUpperLimit);
 }
-#      endif
+#endif
 
-#    endif  // HAVE_SIGALTSTACK
+#endif  // HAVE_SIGALTSTACK
 
 // x86 specific tests.  Uses some inline assembler.
 extern "C" {
 inline void* always_inline inline_func() {
-  void* pc = nullptr;
+  void *pc = nullptr;
-#    ifdef TEST_WITH_LABEL_ADDRESSES
+#ifdef TEST_X86_32_AND_64
-  pc = &&curr_pc;
+  __asm__ __volatile__("call 1f; 1: pop %0" : "=r"(pc));
-curr_pc:
+#endif
-#    endif
   return pc;
 }
 
 void* ATTRIBUTE_NOINLINE non_inline_func();
 void* ATTRIBUTE_NOINLINE non_inline_func() {
-  void* pc = nullptr;
+  void *pc = nullptr;
-#    ifdef TEST_WITH_LABEL_ADDRESSES
+#ifdef TEST_X86_32_AND_64
-  pc = &&curr_pc;
+  __asm__ __volatile__("call 1f; 1: pop %0" : "=r"(pc));
-curr_pc:
+#endif
-#    endif
   return pc;
 }
 
 static void ATTRIBUTE_NOINLINE TestWithPCInsideNonInlineFunction() {
-#    if defined(TEST_WITH_LABEL_ADDRESSES) && defined(HAVE_ATTRIBUTE_NOINLINE)
+#if defined(TEST_X86_32_AND_64) && defined(HAVE_ATTRIBUTE_NOINLINE)
-  void* pc = non_inline_func();
+  void *pc = non_inline_func();
-  const char* symbol = TrySymbolize(pc);
+  const char *symbol = TrySymbolize(pc);
 
-#      if !defined(_MSC_VER) || !defined(NDEBUG)
+#if !defined(_MSC_VER) || !defined(NDEBUG)
   CHECK(symbol != nullptr);
   CHECK_STREQ(symbol, "non_inline_func");
-#      endif
+#endif
   cout << "Test case TestWithPCInsideNonInlineFunction passed." << endl;
-#    endif
+#endif
 }
 
 static void ATTRIBUTE_NOINLINE TestWithPCInsideInlineFunction() {
-#    if defined(TEST_WITH_LABEL_ADDRESSES) && defined(HAVE_ALWAYS_INLINE)
+#if defined(TEST_X86_32_AND_64) && defined(HAVE_ALWAYS_INLINE)
-  void* pc = inline_func();  // Must be inlined.
+  void *pc = inline_func();  // Must be inlined.
-  const char* symbol = TrySymbolize(pc);
+  const char *symbol = TrySymbolize(pc);
 
-#      if !defined(_MSC_VER) || !defined(NDEBUG)
+#if !defined(_MSC_VER) || !defined(NDEBUG)
   CHECK(symbol != nullptr);
   CHECK_STREQ(symbol, __FUNCTION__);
-#      endif
+#endif
   cout << "Test case TestWithPCInsideInlineFunction passed." << endl;
-#    endif
+#endif
 }
 }
 
 // Test with a return address.
 static void ATTRIBUTE_NOINLINE TestWithReturnAddress() {
-#    if defined(HAVE_ATTRIBUTE_NOINLINE)
+#if defined(HAVE_ATTRIBUTE_NOINLINE)
-  void* return_address = __builtin_return_address(0);
+  void *return_address = __builtin_return_address(0);
-  const char* symbol =
+  const char *symbol = TrySymbolize(return_address);
-      TrySymbolize(return_address, google::SymbolizeOptions::kNoLineNumbers);
 
-#      if !defined(_MSC_VER) || !defined(NDEBUG)
+#if !defined(_MSC_VER) || !defined(NDEBUG)
   CHECK(symbol != nullptr);
   CHECK_STREQ(symbol, "main");
-#      endif
+#endif
   cout << "Test case TestWithReturnAddress passed." << endl;
-#    endif
+#endif
 }
 
-#  elif defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
+# elif defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
 
-#    ifdef _MSC_VER
+#ifdef _MSC_VER
-#      include <intrin.h>
+#include <intrin.h>
-#      pragma intrinsic(_ReturnAddress)
+#pragma intrinsic(_ReturnAddress)
-#    endif
+#endif
 
 struct Foo {
   static void func(int x);
@@ -427,38 +410,37 @@ __declspec(noinline) void Foo::func(int x) {
 
 TEST(Symbolize, SymbolizeWithDemangling) {
   Foo::func(100);
-  const char* ret = TrySymbolize((void*)(&Foo::func));
+  const char* ret = TrySymbolize((void *)(&Foo::func));
 
-#    if defined(HAVE_DBGHELP) && !defined(NDEBUG)
+#if defined(HAVE_DBGHELP) && !defined(NDEBUG)
   EXPECT_STREQ("public: static void __cdecl Foo::func(int)", ret);
-#    endif
+#endif
 }
 
 __declspec(noinline) void TestWithReturnAddress() {
-  void* return_address =
+  void *return_address =
-#    ifdef __GNUC__  // Cygwin and MinGW support
+#ifdef __GNUC__ // Cygwin and MinGW support
-      __builtin_return_address(0)
+	  __builtin_return_address(0)
-#    else
+#else
-      _ReturnAddress()
+	  _ReturnAddress()
-#    endif
+#endif
-      ;
+	  ;
-  const char* symbol =
+  const char *symbol = TrySymbolize(return_address);
-      TrySymbolize(return_address, google::SymbolizeOptions::kNoLineNumbers);
+#if !defined(_MSC_VER) || !defined(NDEBUG)
-#    if !defined(_MSC_VER) || !defined(NDEBUG)
   CHECK(symbol != nullptr);
   CHECK_STREQ(symbol, "main");
-#    endif
+#endif
   cout << "Test case TestWithReturnAddress passed." << endl;
 }
-#  endif
+# endif  // __ELF__
 #endif  // HAVE_STACKTRACE
 
-int main(int argc, char** argv) {
+int main(int argc, char **argv) {
   FLAGS_logtostderr = true;
   InitGoogleLogging(argv[0]);
   InitGoogleTest(&argc, argv);
 #if defined(HAVE_SYMBOLIZE) && defined(HAVE_STACKTRACE)
-#  if defined(HAVE_ELF_H) || defined(HAVE_SYS_EXEC_ELF_H)
+# if defined(__ELF__)
   // We don't want to get affected by the callback interface, that may be
   // used to install some callback function at InitGoogle() time.
   InstallSymbolizeCallback(nullptr);
@@ -467,13 +449,13 @@ int main(int argc, char** argv) {
   TestWithPCInsideNonInlineFunction();
   TestWithReturnAddress();
   return RUN_ALL_TESTS();
-#  elif defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
+# elif defined(GLOG_OS_WINDOWS) || defined(GLOG_OS_CYGWIN)
   TestWithReturnAddress();
   return RUN_ALL_TESTS();
-#  else   // GLOG_OS_WINDOWS
+# else  // GLOG_OS_WINDOWS
   printf("PASS (no symbolize_unittest support)\n");
   return 0;
-#  endif  // defined(HAVE_ELF_H) || defined(HAVE_SYS_EXEC_ELF_H)
+# endif  // __ELF__
 #else
   printf("PASS (no symbolize support)\n");
   return 0;
@@ -481,5 +463,5 @@ int main(int argc, char** argv) {
 }
 
 #if defined(__GNUG__)
-#  pragma GCC diagnostic pop
+#pragma GCC diagnostic pop
 #endif

src/utilities.cc

@@ -1,4 +1,4 @@
-// Copyright (c) 2024, Google Inc.
+// Copyright (c) 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -29,51 +29,40 @@
 //
 // Author: Shinichiro Hamaji
 
-#define _GNU_SOURCE 1
+#include "config.h"
-
 #include "utilities.h"
 
-#include <atomic>
-#include <cerrno>
-#include <csignal>
 #include <cstdio>
 #include <cstdlib>
 
-#include "base/googleinit.h"
+#include <csignal>
-#include "config.h"
-#include "glog/flags.h"
-#include "glog/logging.h"
-#include "stacktrace.h"
-#include "symbolize.h"
-
-#ifdef GLOG_OS_ANDROID
-#  include <android/log.h>
-#endif
 #ifdef HAVE_SYS_TIME_H
-#  include <sys/time.h>
+# include <sys/time.h>
 #endif
+#include <ctime>
 #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_SYSLOG_H
-#  include <syslog.h>
+# include <syslog.h>
 #endif
 #ifdef HAVE_UNISTD_H
-#  include <unistd.h>  // For geteuid.
+# include <unistd.h>  // For geteuid.
 #endif
 #ifdef HAVE_PWD_H
-#  include <pwd.h>
+# include <pwd.h>
+#endif
+#ifdef __ANDROID__
+#include <android/log.h>
 #endif
 
-#if defined(HAVE___PROGNAME)
+#include "base/googleinit.h"
-extern char* __progname;
-#endif
 
 using std::string;
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
 
 static const char* g_program_invocation_short_name = nullptr;
 
@@ -81,45 +70,19 @@ bool IsGoogleLoggingInitialized() {
   return g_program_invocation_short_name != nullptr;
 }
 
-inline namespace glog_internal_namespace_ {
+_END_GOOGLE_NAMESPACE_
-
-constexpr int FileDescriptor::InvalidHandle;
-
-void AlsoErrorWrite(LogSeverity severity, const char* tag,
-                    const char* message) noexcept {
-#if defined(GLOG_OS_WINDOWS)
-  (void)severity;
-  (void)tag;
-  // On Windows, also output to the debugger
-  ::OutputDebugStringA(message);
-#elif defined(GLOG_OS_ANDROID)
-  constexpr int android_log_levels[] = {
-      ANDROID_LOG_INFO,
-      ANDROID_LOG_WARN,
-      ANDROID_LOG_ERROR,
-      ANDROID_LOG_FATAL,
-  };
-
-  __android_log_write(android_log_levels[severity], tag, message);
-#else
-  (void)severity;
-  (void)tag;
-  (void)message;
-#endif
-}
-
-}  // namespace glog_internal_namespace_
-
-}  // namespace google
 
 // The following APIs are all internal.
 #ifdef HAVE_STACKTRACE
 
-#  include "base/commandlineflags.h"
+#include "stacktrace.h"
-#  include "stacktrace.h"
+#include "symbolize.h"
-#  include "symbolize.h"
+#include "base/commandlineflags.h"
 
-namespace google {
+GLOG_DEFINE_bool(symbolize_stacktrace, true,
+                 "Symbolize the stack trace in the tombstone");
+
+_START_GOOGLE_NAMESPACE_
 
 using DebugWriter = void(const char*, void*);
 
@@ -127,67 +90,71 @@ using DebugWriter = void(const char*, void*);
 // For some environments, add two extra bytes for the leading "0x".
 static const int kPrintfPointerFieldWidth = 2 + 2 * sizeof(void*);
 
-static void DebugWriteToStderr(const char* data, void*) {
+static void DebugWriteToStderr(const char* data, void *) {
   // This one is signal-safe.
-  if (write(fileno(stderr), data, strlen(data)) < 0) {
+  if (write(STDERR_FILENO, data, strlen(data)) < 0) {
     // Ignore errors.
   }
-  AlsoErrorWrite(GLOG_FATAL,
+#if defined(__ANDROID__)
-                 glog_internal_namespace_::ProgramInvocationShortName(), data);
+  // ANDROID_LOG_FATAL as fatal error occurred and now is dumping call stack.
+  __android_log_write(ANDROID_LOG_FATAL,
+                      glog_internal_namespace_::ProgramInvocationShortName(),
+                      data);
+#endif
 }
 
-static void DebugWriteToString(const char* data, void* arg) {
+static void DebugWriteToString(const char* data, void *arg) {
   reinterpret_cast<string*>(arg)->append(data);
 }
 
-#  ifdef HAVE_SYMBOLIZE
+#ifdef HAVE_SYMBOLIZE
 // Print a program counter and its symbol name.
-static void DumpPCAndSymbol(DebugWriter* writerfn, void* arg, void* pc,
+static void DumpPCAndSymbol(DebugWriter *writerfn, void *arg, void *pc,
-                            const char* const prefix) {
+                            const char * const prefix) {
   char tmp[1024];
-  const char* symbol = "(unknown)";
+  const char *symbol = "(unknown)";
   // Symbolizes the previous address of pc because pc may be in the
   // next function.  The overrun happens when the function ends with
   // a call to a function annotated noreturn (e.g. CHECK).
-  if (Symbolize(reinterpret_cast<char*>(pc) - 1, tmp, sizeof(tmp))) {
+  if (Symbolize(reinterpret_cast<char *>(pc) - 1, tmp, sizeof(tmp))) {
-    symbol = tmp;
+      symbol = tmp;
   }
   char buf[1024];
-  std::snprintf(buf, sizeof(buf), "%s@ %*p  %s\n", prefix,
+  snprintf(buf, sizeof(buf), "%s@ %*p  %s\n",
-                kPrintfPointerFieldWidth, pc, symbol);
+           prefix, kPrintfPointerFieldWidth, pc, symbol);
   writerfn(buf, arg);
 }
-#  endif
+#endif
 
-static void DumpPC(DebugWriter* writerfn, void* arg, void* pc,
+static void DumpPC(DebugWriter *writerfn, void *arg, void *pc,
-                   const char* const prefix) {
+                   const char * const prefix) {
   char buf[100];
-  std::snprintf(buf, sizeof(buf), "%s@ %*p\n", prefix, kPrintfPointerFieldWidth,
+  snprintf(buf, sizeof(buf), "%s@ %*p\n",
-                pc);
+           prefix, kPrintfPointerFieldWidth, pc);
   writerfn(buf, arg);
 }
 
 // Dump current stack trace as directed by writerfn
-static void DumpStackTrace(int skip_count, DebugWriter* writerfn, void* arg) {
+static void DumpStackTrace(int skip_count, DebugWriter *writerfn, void *arg) {
   // Print stack trace
   void* stack[32];
-  int depth = GetStackTrace(stack, ARRAYSIZE(stack), skip_count + 1);
+  int depth = GetStackTrace(stack, ARRAYSIZE(stack), skip_count+1);
   for (int i = 0; i < depth; i++) {
-#  if defined(HAVE_SYMBOLIZE)
+#if defined(HAVE_SYMBOLIZE)
     if (FLAGS_symbolize_stacktrace) {
       DumpPCAndSymbol(writerfn, arg, stack[i], "    ");
     } else {
       DumpPC(writerfn, arg, stack[i], "    ");
     }
-#  else
+#else
     DumpPC(writerfn, arg, stack[i], "    ");
-#  endif
+#endif
   }
 }
 
-#  ifdef __GNUC__
+#ifdef __GNUC__
 __attribute__((noreturn))
-#  endif
+#endif
 static void
 DumpStackTraceAndExit() {
   DumpStackTrace(1, DebugWriteToStderr, nullptr);
@@ -196,55 +163,88 @@ DumpStackTraceAndExit() {
   if (IsFailureSignalHandlerInstalled()) {
     // Set the default signal handler for SIGABRT, to avoid invoking our
     // own signal handler installed by InstallFailureSignalHandler().
-#  ifdef HAVE_SIGACTION
+#ifdef HAVE_SIGACTION
     struct sigaction sig_action;
     memset(&sig_action, 0, sizeof(sig_action));
     sigemptyset(&sig_action.sa_mask);
     sig_action.sa_handler = SIG_DFL;
     sigaction(SIGABRT, &sig_action, nullptr);
-#  elif defined(GLOG_OS_WINDOWS)
+#elif defined(GLOG_OS_WINDOWS)
     signal(SIGABRT, SIG_DFL);
-#  endif  // HAVE_SIGACTION
+#endif  // HAVE_SIGACTION
   }
 
   abort();
 }
 
-}  // namespace google
+_END_GOOGLE_NAMESPACE_
 
 #endif  // HAVE_STACKTRACE
 
-namespace google {
+_START_GOOGLE_NAMESPACE_
 
-inline namespace glog_internal_namespace_ {
+namespace glog_internal_namespace_ {
-
-const char* const_basename(const char* filepath) {
-  const char* base = strrchr(filepath, '/');
-#ifdef GLOG_OS_WINDOWS  // Look for either path separator in Windows
-  if (!base) base = strrchr(filepath, '\\');
-#endif
-  return base ? (base + 1) : filepath;
-}
 
 const char* ProgramInvocationShortName() {
   if (g_program_invocation_short_name != nullptr) {
     return g_program_invocation_short_name;
+  } else {
+    // TODO(hamaji): Use /proc/self/cmdline and so?
+    return "UNKNOWN";
   }
-#if defined(HAVE_PROGRAM_INVOCATION_SHORT_NAME)
+}
-  return program_invocation_short_name;
+
-#elif defined(HAVE_GETPROGNAME)
+#ifdef GLOG_OS_WINDOWS
-  return getprogname();
+struct timeval {
-#elif defined(HAVE___PROGNAME)
+  long tv_sec, tv_usec;
-  return __progname;
+};
-#elif defined(HAVE___ARGV)
+
-  return const_basename(__argv[0]);
+// Based on: http://www.google.com/codesearch/p?hl=en#dR3YEbitojA/os_win32.c&q=GetSystemTimeAsFileTime%20license:bsd
-#else
+// See COPYING for copyright information.
-  return "UNKNOWN";
+static int gettimeofday(struct timeval *tv, void* /*tz*/) {
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wlong-long"
 #endif
+#define EPOCHFILETIME (116444736000000000ULL)
+  FILETIME ft;
+  ULARGE_INTEGER li;
+  uint64 tt;
+
+  GetSystemTimeAsFileTime(&ft);
+  li.LowPart = ft.dwLowDateTime;
+  li.HighPart = ft.dwHighDateTime;
+  tt = (li.QuadPart - EPOCHFILETIME) / 10;
+  tv->tv_sec = tt / 1000000;
+  tv->tv_usec = tt % 1000000;
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+  return 0;
+}
+#endif
+
+int64 CycleClock_Now() {
+  // TODO(hamaji): temporary impementation - it might be too slow.
+  struct timeval tv;
+  gettimeofday(&tv, nullptr);
+  return static_cast<int64>(tv.tv_sec) * 1000000 + tv.tv_usec;
+}
+
+int64 UsecToCycles(int64 usec) {
+  return usec;
+}
+
+WallTime WallTime_Now() {
+  // Now, cycle clock is retuning microseconds since the epoch.
+  return CycleClock_Now() * 0.000001;
 }
 
 static int32 g_main_thread_pid = getpid();
-int32 GetMainThreadPid() { return g_main_thread_pid; }
+int32 GetMainThreadPid() {
+  return g_main_thread_pid;
+}
 
 bool PidHasChanged() {
   int32 pid = getpid();
@@ -255,8 +255,66 @@ bool PidHasChanged() {
   return true;
 }
 
+pid_t GetTID() {
+  // On Linux and MacOSX, we try to use gettid().
+#if defined GLOG_OS_LINUX || defined GLOG_OS_MACOSX
+#ifndef __NR_gettid
+#ifdef GLOG_OS_MACOSX
+#define __NR_gettid SYS_gettid
+#elif ! defined __i386__
+#error "Must define __NR_gettid for non-x86 platforms"
+#else
+#define __NR_gettid 224
+#endif
+#endif
+  static bool lacks_gettid = false;
+  if (!lacks_gettid) {
+#if (defined(GLOG_OS_MACOSX) && defined(HAVE_PTHREAD_THREADID_NP))
+    uint64_t tid64;
+    const int error = pthread_threadid_np(nullptr, &tid64);
+    pid_t tid = error ? -1 : static_cast<pid_t>(tid64);
+#else
+    auto tid = static_cast<pid_t>(syscall(__NR_gettid));
+#endif
+    if (tid != -1) {
+      return tid;
+    }
+    // Technically, this variable has to be volatile, but there is a small
+    // performance penalty in accessing volatile variables and there should
+    // not be any serious adverse effect if a thread does not immediately see
+    // the value change to "true".
+    lacks_gettid = true;
+  }
+#endif  // GLOG_OS_LINUX || GLOG_OS_MACOSX
+
+  // If gettid() could not be used, we use one of the following.
+#if defined GLOG_OS_LINUX
+  return getpid();  // Linux:  getpid returns thread ID when gettid is absent
+#elif defined GLOG_OS_WINDOWS && !defined GLOG_OS_CYGWIN
+  return static_cast<pid_t>(GetCurrentThreadId());
+#elif defined GLOG_OS_OPENBSD
+  return getthrid();
+#elif defined(HAVE_PTHREAD)
+  // If none of the techniques above worked, we use pthread_self().
+  return (pid_t)(uintptr_t)pthread_self();
+#else
+  return -1;
+#endif
+}
+
+const char* const_basename(const char* filepath) {
+  const char* base = strrchr(filepath, '/');
+#ifdef GLOG_OS_WINDOWS  // Look for either path separator in Windows
+  if (!base)
+    base = strrchr(filepath, '\\');
+#endif
+  return base ? (base+1) : filepath;
+}
+
 static string g_my_user_name;
-const string& MyUserName() { return g_my_user_name; }
+const string& MyUserName() {
+  return g_my_user_name;
+}
 static void MyUserNameInitializer() {
   // TODO(hamaji): Probably this is not portable.
 #if defined(GLOG_OS_WINDOWS)
@@ -276,7 +334,7 @@ static void MyUserNameInitializer() {
     if (pwuid_res == 0 && result) {
       g_my_user_name = pwd.pw_name;
     } else {
-      std::snprintf(buffer, sizeof(buffer), "uid%d", uid);
+      snprintf(buffer, sizeof(buffer), "uid%d", uid);
       g_my_user_name = buffer;
     }
 #endif
@@ -287,19 +345,30 @@ static void MyUserNameInitializer() {
 }
 REGISTER_MODULE_INITIALIZER(utilities, MyUserNameInitializer())
 
+#ifdef HAVE_STACKTRACE
+void DumpStackTraceToString(string* stacktrace) {
+  DumpStackTrace(1, DebugWriteToString, stacktrace);
+}
+#endif
+
 // We use an atomic operation to prevent problems with calling CrashReason
 // from inside the Mutex implementation (potentially through RAW_CHECK).
-static std::atomic<const logging::internal::CrashReason*> g_reason{nullptr};
+static const CrashReason* g_reason = nullptr;
 
-void SetCrashReason(const logging::internal::CrashReason* r) {
+void SetCrashReason(const CrashReason* r) {
-  const logging::internal::CrashReason* expected = nullptr;
+  sync_val_compare_and_swap(&g_reason,
-  g_reason.compare_exchange_strong(expected, r);
+                            reinterpret_cast<const CrashReason*>(0),
+                            r);
 }
 
 void InitGoogleLoggingUtilities(const char* argv0) {
   CHECK(!IsGoogleLoggingInitialized())
       << "You called InitGoogleLogging() twice!";
-  g_program_invocation_short_name = const_basename(argv0);
+  const char* slash = strrchr(argv0, '/');
+#ifdef GLOG_OS_WINDOWS
+  if (!slash)  slash = strrchr(argv0, '\\');
+#endif
+  g_program_invocation_short_name = slash ? slash + 1 : argv0;
 
 #ifdef HAVE_STACKTRACE
   InstallFailureFunction(&DumpStackTraceAndExit);
@@ -308,8 +377,7 @@ void InitGoogleLoggingUtilities(const char* argv0) {
 
 void ShutdownGoogleLoggingUtilities() {
   CHECK(IsGoogleLoggingInitialized())
-      << "You called ShutdownGoogleLogging() without calling "
+      << "You called ShutdownGoogleLogging() without calling InitGoogleLogging() first!";
-         "InitGoogleLogging() first!";
   g_program_invocation_short_name = nullptr;
 #ifdef HAVE_SYSLOG_H
   closelog();
@@ -318,12 +386,17 @@ void ShutdownGoogleLoggingUtilities() {
 
 }  // namespace glog_internal_namespace_
 
-#ifdef HAVE_STACKTRACE
+_END_GOOGLE_NAMESPACE_
-std::string GetStackTrace() {
-  std::string stacktrace;
-  DumpStackTrace(1, DebugWriteToString, &stacktrace);
-  return stacktrace;
-}
-#endif
 
-}  // namespace google
+// Make an implementation of stacktrace compiled.
+#ifdef STACKTRACE_H
+# include STACKTRACE_H
+# if 0
+// For include scanners which can't handle macro expansions.
+#  include "stacktrace_libunwind-inl.h"
+#  include "stacktrace_x86-inl.h"
+#  include "stacktrace_x86_64-inl.h"
+#  include "stacktrace_powerpc-inl.h"
+#  include "stacktrace_generic-inl.h"
+# endif
+#endif