[compiler-rt] b260f3f - sanitizer_common: disable thread safety annotations for googletest
Dimitry Andric via llvm-commits
llvm-commits at lists.llvm.org
Thu Aug 5 11:07:46 PDT 2021
Author: Dimitry Andric
Date: 2021-08-05T20:07:24+02:00
New Revision: b260f3fdda63bbddb7834c42cfeeb2b0a8b86a23
URL: https://github.com/llvm/llvm-project/commit/b260f3fdda63bbddb7834c42cfeeb2b0a8b86a23
DIFF: https://github.com/llvm/llvm-project/commit/b260f3fdda63bbddb7834c42cfeeb2b0a8b86a23.diff
LOG: sanitizer_common: disable thread safety annotations for googletest
Recently in 0da172b1766e thread safety warnings-as-errors were enabled.
However, googletest is currently not compatible with thread safety
annotations. On FreeBSD, which has the pthread functions marked with
such annotations, this results in errors when building the compiler-rt
tests:
In file included from compiler-rt/lib/interception/tests/interception_test_main.cpp:15:
In file included from llvm/utils/unittest/googletest/include/gtest/gtest.h:62:
In file included from llvm/utils/unittest/googletest/include/gtest/internal/gtest-internal.h:40:
llvm/utils/unittest/googletest/include/gtest/internal/gtest-port.h:1636:3: error: mutex 'mutex_' is still held at the end of function [-Werror,-Wthread-safety-analysis]
}
^
llvm/utils/unittest/googletest/include/gtest/internal/gtest-port.h:1633:32: note: mutex acquired here
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_));
^
llvm/utils/unittest/googletest/include/gtest/internal/gtest-port.h:1645:32: error: releasing mutex 'mutex_' that was not held [-Werror,-Wthread-safety-analysis]
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_));
^
2 errors generated.
At some point googletest will hopefully be made compatible with thread
safety annotations, but for now add corresponding `-Wno-thread-*` flags
to `COMPILER_RT_GTEST_CFLAGS` to silence these warnings-as-errors.
Reviewed By: dvyukov
Differential Revision: https://reviews.llvm.org/D107491
Added:
Modified:
compiler-rt/CMakeLists.txt
Removed:
################################################################################
diff --git a/compiler-rt/CMakeLists.txt b/compiler-rt/CMakeLists.txt
index d9ef6eaed71b..5229616be4a2 100644
--- a/compiler-rt/CMakeLists.txt
+++ b/compiler-rt/CMakeLists.txt
@@ -546,6 +546,14 @@ set(COMPILER_RT_GTEST_CFLAGS
-I${COMPILER_RT_GTEST_PATH}/include
-I${COMPILER_RT_GTEST_PATH}
)
+if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
+ # FreeBSD has its pthread functions marked with thread safety annotations, but
+ # googletest is not compatible with such annotations. Disable the thread
+ # safety warnings-as-errors until googletest has been fixed.
+ list(APPEND NO_THREAD_SAFETY_FLAGS ${THREAD_SAFETY_FLAGS})
+ list(TRANSFORM NO_THREAD_SAFETY_FLAGS REPLACE "error=" "no-")
+ list(APPEND COMPILER_RT_GTEST_CFLAGS ${NO_THREAD_SAFETY_FLAGS})
+endif()
# Mocking support.
set(COMPILER_RT_GMOCK_PATH ${LLVM_MAIN_SRC_DIR}/utils/unittest/googlemock)
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