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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/ubsan | |
| 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/ubsan')
| -rw-r--r-- | lib/ubsan/CMakeLists.txt | 4 | ||||
| -rw-r--r-- | lib/ubsan/weak_symbols.txt | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/lib/ubsan/CMakeLists.txt b/lib/ubsan/CMakeLists.txt index 036c65a09..ebff36019 100644 --- a/lib/ubsan/CMakeLists.txt +++ b/lib/ubsan/CMakeLists.txt @@ -56,6 +56,9 @@ if(APPLE) SOURCES ${UBSAN_STANDALONE_SOURCES} CFLAGS ${UBSAN_STANDALONE_CFLAGS}) + add_weak_symbols("ubsan" WEAK_SYMBOL_LINKFLAGS) + add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINKFLAGS) + add_compiler_rt_runtime(clang_rt.ubsan SHARED OS ${SANITIZER_COMMON_SUPPORTED_OS} @@ -64,6 +67,7 @@ if(APPLE) RTUbsan_standalone RTSanitizerCommon RTSanitizerCommonLibc + LINKFLAGS ${WEAK_SYMBOL_LINKFLAGS} PARENT_TARGET ubsan) endif() diff --git a/lib/ubsan/weak_symbols.txt b/lib/ubsan/weak_symbols.txt new file mode 100644 index 000000000..69e1bc185 --- /dev/null +++ b/lib/ubsan/weak_symbols.txt @@ -0,0 +1 @@ +___ubsan_default_options |