diff options
Diffstat (limited to 'build_detect_platform')
| -rwxr-xr-x | build_detect_platform | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/build_detect_platform b/build_detect_platform index b7a859f..0768429 100755 --- a/build_detect_platform +++ b/build_detect_platform @@ -202,7 +202,6 @@ EOF PLATFORM_LIBS="$PLATFORM_LIBS -lcrc32c" fi - # Test whether Snappy library is installed # https://github.com/google/snappy $CXX $CXXFLAGS -x c++ - -o $CXXOUTPUT 2>/dev/null <<EOF @@ -222,7 +221,23 @@ EOF PLATFORM_LIBS="$PLATFORM_LIBS -ltcmalloc" fi - rm -f $CXXOUTPUT 2>/dev/null + # Test whether -Wthread-safety is available. See + # https://clang.llvm.org/docs/ThreadSafetyAnalysis.html + # -Werror is necessary because unknown attributes only generate warnings. + $CXX $CXXFLAGS -Wthread-safety -Werror -x c++ - -o $CXXOUTPUT 2>/dev/null <<EOF + struct __attribute__((lockable)) Lock { + void Acquire() __attribute__((exclusive_lock_function())); + void Release() __attribute__((unlock_function())); + }; + struct ThreadSafeType { + Lock lock_; + int data_ __attribute__((guarded_by(lock_))); + }; + int main() { return 0; } +EOF + if [ "$?" = 0 ]; then + COMMON_FLAGS="$COMMON_FLAGS -Wthread-safety" + fi rm -f $CXXOUTPUT 2>/dev/null fi |