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| author | Francis Ricci <francisjricci@gmail.com> | 2017-01-09 03:51:42 +0000 |
|---|---|---|
| committer | Francis Ricci <francisjricci@gmail.com> | 2017-01-09 03:51:42 +0000 |
| commit | ae4b8805fdce22aacb5644520c4dc42ce2656ebf (patch) | |
| tree | 77e6862afbfa593d23c5069cfd364d3334be406a /lib/asan/CMakeLists.txt | |
| parent | cf0113c530ec1a9e44a3fcec909ee10725df5347 (diff) | |
Enable weak hooks on darwin
Summary:
By default, darwin requires a definition for weak interface functions at
link time. Adding the '-U' link flag with each weak function allows these
weak interface functions to be used without definitions, which mirrors
behavior on linux and windows.
Reviewers: compnerd, eugenis
Subscribers: kubabrecka, mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D28203
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@291417 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/asan/CMakeLists.txt')
| -rw-r--r-- | lib/asan/CMakeLists.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/asan/CMakeLists.txt b/lib/asan/CMakeLists.txt index 1258ef616..4bebb0a45 100644 --- a/lib/asan/CMakeLists.txt +++ b/lib/asan/CMakeLists.txt @@ -106,6 +106,10 @@ endif() add_compiler_rt_component(asan) if(APPLE) + add_weak_symbols("asan" WEAK_SYMBOL_LINKFLAGS) + add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS) + add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS) + add_compiler_rt_runtime(clang_rt.asan SHARED OS ${SANITIZER_COMMON_SUPPORTED_OS} @@ -117,6 +121,7 @@ if(APPLE) RTLSanCommon RTUbsan CFLAGS ${ASAN_DYNAMIC_CFLAGS} + LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS} DEFS ${ASAN_DYNAMIC_DEFINITIONS} PARENT_TARGET asan) else() |