+void dfsan_weak_hook_strncmp(void *caller_pc, const char *s1, const char *s2,
+ size_t n, dfsan_label s1_label,
+ dfsan_label s2_label, dfsan_label n_label) {
+ if (!TS) return;
+ n = std::min(n, fuzzer::InternalStrnlen(s1, n));
+ n = std::min(n, fuzzer::InternalStrnlen(s2, n));
+ dfsan_label L1 = dfsan_read_label(s1, n);
+ dfsan_label L2 = dfsan_read_label(s2, n);
+ TS->DFSanMemcmpCallback(n, reinterpret_cast<const uint8_t *>(s1),
+ reinterpret_cast<const uint8_t *>(s2), L1, L2);
+}
+
+void dfsan_weak_hook_strcmp(void *caller_pc, const char *s1, const char *s2,
+ dfsan_label s1_label, dfsan_label s2_label) {
+ if (!TS) return;
+ size_t Len1 = strlen(s1);
+ size_t Len2 = strlen(s2);
+ size_t N = std::min(Len1, Len2);
+ if (N <= 1) return; // Not interesting.
+ dfsan_label L1 = dfsan_read_label(s1, Len1);
+ dfsan_label L2 = dfsan_read_label(s2, Len2);
+ TS->DFSanMemcmpCallback(N, reinterpret_cast<const uint8_t *>(s1),
+ reinterpret_cast<const uint8_t *>(s2), L1, L2);
+}
+
+void __sanitizer_weak_hook_memcmp(void *caller_pc, const void *s1,
+ const void *s2, size_t n) {
+ if (!TS) return;
+ if (n <= 1) return; // Not interesting.
+ TS->TraceMemcmpCallback(n, reinterpret_cast<const uint8_t *>(s1),
+ reinterpret_cast<const uint8_t *>(s2));
+}
+
+void __sanitizer_weak_hook_strncmp(void *caller_pc, const char *s1,
+ const char *s2, size_t n) {
+ if (!TS) return;
+ size_t Len1 = fuzzer::InternalStrnlen(s1, n);
+ size_t Len2 = fuzzer::InternalStrnlen(s2, n);
+ n = std::min(n, Len1);
+ n = std::min(n, Len2);
+ if (n <= 1) return; // Not interesting.
+ TS->TraceMemcmpCallback(n, reinterpret_cast<const uint8_t *>(s1),
+ reinterpret_cast<const uint8_t *>(s2));
+}
+
+void __sanitizer_weak_hook_strcmp(void *caller_pc, const char *s1,
+ const char *s2) {
+ if (!TS) return;
+ size_t Len1 = strlen(s1);
+ size_t Len2 = strlen(s2);
+ size_t N = std::min(Len1, Len2);
+ if (N <= 1) return; // Not interesting.
+ TS->TraceMemcmpCallback(N, reinterpret_cast<const uint8_t *>(s1),
+ reinterpret_cast<const uint8_t *>(s2));
+}
+
+__attribute__((visibility("default")))