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| author | Kostya Serebryany <kcc@google.com> | 2015-08-05 18:20:54 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2015-08-05 18:20:54 +0000 |
| commit | dd8b3952b82f53462a0526fe27c97fc3986e28de (patch) | |
| tree | 3bc56da004c38285d75cb36ba810b5d20909b89e | |
| parent | 823e85c37e6d2a513d149abdf138e76cb6bbb72b (diff) | |
| download | bcm5719-llvm-dd8b3952b82f53462a0526fe27c97fc3986e28de.tar.gz bcm5719-llvm-dd8b3952b82f53462a0526fe27c97fc3986e28de.zip | |
[libFuzzer] add weak hooks for strcmp
llvm-svn: 244083
| -rw-r--r-- | compiler-rt/lib/dfsan/dfsan_custom.cc | 6 | ||||
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/compiler-rt/lib/dfsan/dfsan_custom.cc b/compiler-rt/lib/dfsan/dfsan_custom.cc index e939e02c54b..815896da6e7 100644 --- a/compiler-rt/lib/dfsan/dfsan_custom.cc +++ b/compiler-rt/lib/dfsan/dfsan_custom.cc @@ -124,10 +124,16 @@ SANITIZER_INTERFACE_ATTRIBUTE int __dfsw_memcmp(const void *s1, const void *s2, return 0; } +DECLARE_WEAK_INTERCEPTOR_HOOK(dfsan_weak_hook_strcmp, uptr caller_pc, + const char *s1, const char *s2, + dfsan_label s1_label, dfsan_label s2_label) + SANITIZER_INTERFACE_ATTRIBUTE int __dfsw_strcmp(const char *s1, const char *s2, dfsan_label s1_label, dfsan_label s2_label, dfsan_label *ret_label) { + CALL_WEAK_INTERCEPTOR_HOOK(dfsan_weak_hook_strcmp, GET_CALLER_PC(), s1, s2, + s1_label, s2_label); for (size_t i = 0;; ++i) { if (s1[i] != s2[i] || s1[i] == 0 || s2[i] == 0) { if (flags().strict_data_dependencies) { diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc index dae7bbf9f7f..a2c4a043457 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc +++ b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc @@ -204,9 +204,14 @@ static inline int CharCmpX(unsigned char c1, unsigned char c2) { return (c1 == c2) ? 0 : (c1 < c2) ? -1 : 1; } +DECLARE_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, uptr called_pc, + const char *s1, const char *s2) + INTERCEPTOR(int, strcmp, const char *s1, const char *s2) { void *ctx; COMMON_INTERCEPTOR_ENTER(ctx, strcmp, s1, s2); + CALL_WEAK_INTERCEPTOR_HOOK(__sanitizer_weak_hook_strcmp, GET_CALLER_PC(), s1, + s2); unsigned char c1, c2; uptr i; for (i = 0;; i++) { |
