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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-11-15 00:14:04 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-11-15 00:14:04 +0000 |
| commit | ec381a4183f70122305f810c6b11b8f0e3bf83c0 (patch) | |
| tree | 662b078e2368794cc38cff1b66b7170986d6d320 /include/llvm/Support/Compiler.h | |
| parent | dd47e0b5d4850fede4b2581c41f1e0a5eff5f05a (diff) | |
Fix linking for some users who already have tsan enabled code and are trying to
link it against llvm code, by making our definitions weak. "Some users."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144596 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Support/Compiler.h')
| -rw-r--r-- | include/llvm/Support/Compiler.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h index cd2e4eb997..14b55c147f 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -62,11 +62,18 @@ #endif #if (__GNUC__ >= 4) +#define LLVM_ATTRIBUTE_WEAK __attribute__((__weak__)) +#else +#define LLVM_ATTRIBUTE_WEAK +#endif + +#if (__GNUC__ >= 4) #define BUILTIN_EXPECT(EXPR, VALUE) __builtin_expect((EXPR), (VALUE)) #else #define BUILTIN_EXPECT(EXPR, VALUE) (EXPR) #endif + // C++ doesn't support 'extern template' of template specializations. GCC does, // but requires __extension__ before it. In the header, use this: // EXTERN_TEMPLATE_INSTANTIATION(class foo<bar>); |