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[libFuzzer] Changing thread_local to __thread in libFuzzer

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Old Apple compilers do not support thread_local keyword. This patch adds -Dthread_local=__thread when the compiler doesn't support thread_local.

Differential Revision: https://reviews.llvm.org/D32312



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301007 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kuba Mracek 2017-04-21 17:39:50 +00:00
parent 35e1962de3
commit 68f048198a
1 changed files with 13 additions and 0 deletions
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13
lib/Fuzzer/CMakeLists.txt
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@ -1,3 +1,16 @@
include(CheckCXXSourceCompiles)
CHECK_CXX_SOURCE_COMPILES("
static thread_local int blah;
int main() {
return 0;
}
" HAS_THREAD_LOCAL)
if( NOT HAS_THREAD_LOCAL )
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Dthread_local=__thread")
endif()
set(LIBFUZZER_FLAGS_BASE "${CMAKE_CXX_FLAGS}")
# Disable the coverage and sanitizer instrumentation for the fuzzer itself.
set(CMAKE_CXX_FLAGS "${LIBFUZZER_FLAGS_BASE} -fno-sanitize-coverage=trace-pc-guard,edge,trace-cmp,indirect-calls,8bit-counters -Werror")