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// Test the weak hooks.
// RUN: %clangxx %s -o %t
// RUN: %run %t
// Hooks are not implemented for lsan.
// XFAIL: lsan
// XFAIL: ubsan
#include <string.h>
#include <assert.h>
bool seen_memcmp, seen_strncmp, seen_strncasecmp, seen_strcmp, seen_strcasecmp,
seen_strstr, seen_strcasestr, seen_memmem;
extern "C" {
void __sanitizer_weak_hook_memcmp(void *called_pc, const void *s1,
const void *s2, size_t n, int result) {
seen_memcmp = true;
}
void __sanitizer_weak_hook_strncmp(void *called_pc, const char *s1,
const char *s2, size_t n, int result) {
seen_strncmp = true;
}
void __sanitizer_weak_hook_strncasecmp(void *called_pc, const char *s1,
const char *s2, size_t n, int result){
seen_strncasecmp = true;
}
void __sanitizer_weak_hook_strcmp(void *called_pc, const char *s1,
const char *s2, int result){
seen_strcmp = true;
}
void __sanitizer_weak_hook_strcasecmp(void *called_pc, const char *s1,
const char *s2, int result){
seen_strcasecmp = true;
}
void __sanitizer_weak_hook_strstr(void *called_pc, const char *s1,
const char *s2, char *result){
seen_strstr = true;
}
void __sanitizer_weak_hook_strcasestr(void *called_pc, const char *s1,
const char *s2, char *result){
seen_strcasestr = true;
}
void __sanitizer_weak_hook_memmem(void *called_pc, const void *s1, size_t len1,
const void *s2, size_t len2, void *result){
seen_memmem = true;
}
} // extern "C"
char s1[] = "ABCDEF";
char s2[] = "CDE";
static volatile int int_sink;
static volatile void *ptr_sink;
int main() {
assert(sizeof(s2) < sizeof(s1));
int_sink = memcmp(s1, s2, sizeof(s2));
assert(seen_memcmp);
int_sink = strncmp(s1, s2, sizeof(s2));
assert(seen_strncmp);
int_sink = strncasecmp(s1, s2, sizeof(s2));
assert(seen_strncasecmp);
int_sink = strcmp(s1, s2);
assert(seen_strcmp);
int_sink = strcasecmp(s1, s2);
assert(seen_strcasecmp);
ptr_sink = strstr(s1, s2);
assert(seen_strstr);
ptr_sink = strcasestr(s1, s2);
assert(seen_strcasestr);
ptr_sink = memmem(s1, sizeof(s1), s2, sizeof(s2));
assert(seen_memmem);
return 0;
}
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