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| author | Kuba Brecka <kuba.brecka@gmail.com> | 2015-11-28 12:44:23 +0000 |
|---|---|---|
| committer | Kuba Brecka <kuba.brecka@gmail.com> | 2015-11-28 12:44:23 +0000 |
| commit | ac79368a80c39af6f26d96d46d391b85f4bd201b (patch) | |
| tree | 1bf89784307164b1c5c8e1510f22dbf522dfdf9d /lib/sanitizer_common/sanitizer_asm.h | |
| parent | 29992b5ee630cce41306d98729d4f2d8e68c261c (diff) | |
[tsan] Port tsan_rtl_amd64.S to OS X to add support for setjmp/longjmp
This patch ports the assembly file tsan_rtl_amd64.S to OS X, where we need several changes:
* Some assembler directives are not available on OS X (.hidden, .type, .size)
* Symbol names need to start with an underscore (added a ASM_TSAN_SYMBOL macro for that).
* To make the interceptors work, we ween to name the function "_wrap_setjmp" (added ASM_TSAN_SYMBOL_INTERCEPTOR for that).
* Calling the original setjmp is done with a simple "jmp _setjmp".
* __sigsetjmp doesn't exist on OS X.
Differential Revision: http://reviews.llvm.org/D14947
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@254228 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_asm.h')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_asm.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/sanitizer_common/sanitizer_asm.h b/lib/sanitizer_common/sanitizer_asm.h index 731f1a539..47c2b12a2 100644 --- a/lib/sanitizer_common/sanitizer_asm.h +++ b/lib/sanitizer_common/sanitizer_asm.h @@ -43,4 +43,16 @@ # define CFI_RESTORE(reg) #endif - +#if !defined(__APPLE__) +# define ASM_HIDDEN(symbol) .hidden symbol +# define ASM_TYPE_FUNCTION(symbol) .type symbol, @function +# define ASM_SIZE(symbol) .size symbol, .-symbol +# define ASM_TSAN_SYMBOL(symbol) symbol +# define ASM_TSAN_SYMBOL_INTERCEPTOR(symbol) symbol +#else +# define ASM_HIDDEN(symbol) +# define ASM_TYPE_FUNCTION(symbol) +# define ASM_SIZE(symbol) +# define ASM_TSAN_SYMBOL(symbol) _##symbol +# define ASM_TSAN_SYMBOL_INTERCEPTOR(symbol) _wrap_##symbol +#endif |