[llvm] r292295 - [libFuzzer] add ATTRIBUTE_NO_SANITIZE_MEMORY to sanitizer hooks

[Kostya Serebryany via llvm-commits]

Author: kcc
Date: Tue Jan 17 17:50:21 2017
New Revision: 292295

URL: http://llvm.org/viewvc/llvm-project?rev=292295&view=rev
Log:
[libFuzzer] add ATTRIBUTE_NO_SANITIZE_MEMORY to sanitizer hooks

Modified:
    llvm/trunk/lib/Fuzzer/FuzzerTraceState.cpp

Modified: llvm/trunk/lib/Fuzzer/FuzzerTraceState.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Fuzzer/FuzzerTraceState.cpp?rev=292295&r1=292294&r2=292295&view=diff
==============================================================================
--- llvm/trunk/lib/Fuzzer/FuzzerTraceState.cpp (original)
+++ llvm/trunk/lib/Fuzzer/FuzzerTraceState.cpp Tue Jan 17 17:50:21 2017
@@ -215,6 +215,8 @@ extern "C" {
 #endif
 
 #if LLVM_FUZZER_DEFINES_SANITIZER_WEAK_HOOOKS
+
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_memcmp(void *caller_pc, const void *s1,
                                   const void *s2, size_t n, int result) {
   if (result == 0) return;  // No reason to mutate.
@@ -225,6 +227,7 @@ void __sanitizer_weak_hook_memcmp(void *
                           reinterpret_cast<const uint8_t *>(s2));
 }
 
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_strncmp(void *caller_pc, const char *s1,
                                    const char *s2, size_t n, int result) {
   if (result == 0) return;  // No reason to mutate.
@@ -239,6 +242,8 @@ void __sanitizer_weak_hook_strncmp(void
                           reinterpret_cast<const uint8_t *>(s2));
 }
 
+
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_strcmp(void *caller_pc, const char *s1,
                                    const char *s2, int result) {
   if (result == 0) return;  // No reason to mutate.
@@ -252,22 +257,31 @@ void __sanitizer_weak_hook_strcmp(void *
                           reinterpret_cast<const uint8_t *>(s2));
 }
 
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_strncasecmp(void *called_pc, const char *s1,
                                        const char *s2, size_t n, int result) {
   return __sanitizer_weak_hook_strncmp(called_pc, s1, s2, n, result);
 }
+
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_strcasecmp(void *called_pc, const char *s1,
                                       const char *s2, int result) {
   return __sanitizer_weak_hook_strcmp(called_pc, s1, s2, result);
 }
+
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_strstr(void *called_pc, const char *s1,
                                   const char *s2, char *result) {
   TS->AddInterestingWord(reinterpret_cast<const uint8_t *>(s2), strlen(s2));
 }
+
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_strcasestr(void *called_pc, const char *s1,
                                       const char *s2, char *result) {
   TS->AddInterestingWord(reinterpret_cast<const uint8_t *>(s2), strlen(s2));
 }
+
+ATTRIBUTE_NO_SANITIZE_MEMORY
 void __sanitizer_weak_hook_memmem(void *called_pc, const void *s1, size_t len1,
                                   const void *s2, size_t len2, void *result) {
   if (fuzzer::DoingMyOwnMemmem) return;