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[libFuzzer] add a macro LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKS 

llvm-svn: 257482
This commit is contained in:
Kostya Serebryany 2016-01-12 16:50:18 +00:00
parent 71e550fefb
commit 4b83a4f6fe
1 changed files with 8 additions and 0 deletions
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8
llvm/lib/Fuzzer/FuzzerTraceState.cpp
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@ -542,6 +542,12 @@ void dfsan_weak_hook_strcmp(void *caller_pc, const char *s1, const char *s2,
reinterpret_cast<const uint8_t *>(s2), L1, L2);
}
// We may need to avoid defining weak hooks to stay compatible with older clang.
#ifndef LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKS
# define LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKS 1
#endif
#if LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKS
void __sanitizer_weak_hook_memcmp(void *caller_pc, const void *s1,
const void *s2, size_t n, int result) {
if (!TS) return;
@ -576,6 +582,8 @@ void __sanitizer_weak_hook_strcmp(void *caller_pc, const char *s1,
reinterpret_cast<const uint8_t *>(s2));
}
#endif // LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKS
__attribute__((visibility("default")))
void __sanitizer_cov_trace_cmp(uint64_t SizeAndType, uint64_t Arg1,
uint64_t Arg2) {