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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 | f94bb99adce9eb58a5d28e9e9aa6a311b54efa27 (patch) | |
| tree | dfdab0f5e4f2cec74dbc96e5d9742e71ec5368ba /compiler-rt/lib/sanitizer_common/sanitizer_asm.h | |
| parent | f12b925bb17eb491ddcd2e2047887375f56554e6 (diff) | |
| download | bcm5719-llvm-f94bb99adce9eb58a5d28e9e9aa6a311b54efa27.tar.gz bcm5719-llvm-f94bb99adce9eb58a5d28e9e9aa6a311b54efa27.zip | |
[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
llvm-svn: 254228
Diffstat (limited to 'compiler-rt/lib/sanitizer_common/sanitizer_asm.h')
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_asm.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_asm.h b/compiler-rt/lib/sanitizer_common/sanitizer_asm.h index 731f1a539d5..47c2b12a204 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_asm.h +++ b/compiler-rt/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 |
