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[libFuzzer] add a macro LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKS
[oota-llvm.git]
/
lib
/
Fuzzer
/
FuzzerTraceState.cpp
diff --git
a/lib/Fuzzer/FuzzerTraceState.cpp
b/lib/Fuzzer/FuzzerTraceState.cpp
index 00f1ebd0619b1a7f1d9500aa6cdc4d9083122544..b2006fa3aa4d09205ea9ee974bae1116519c7eb7 100644
(file)
--- a/
lib/Fuzzer/FuzzerTraceState.cpp
+++ b/
lib/Fuzzer/FuzzerTraceState.cpp
@@
-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);
}
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;
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));
}
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) {
__attribute__((visibility("default")))
void __sanitizer_cov_trace_cmp(uint64_t SizeAndType, uint64_t Arg1,
uint64_t Arg2) {