32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
// RUN: %clangxx_hwasan %s -o %t
|
|
// RUN: %env_hwasan_opts=halt_on_error=0 not %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST --check-prefixes=CHECK,RECOVER
|
|
// RUN: %env_hwasan_opts=halt_on_error=1 not %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST
|
|
|
|
#include <sanitizer/hwasan_interface.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
__attribute__((no_sanitize("hwaddress"))) void
|
|
ForceCallInterceptor(void *p, int c, size_t size) {
|
|
memset(p, c, size) == nullptr;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
__hwasan_enable_allocator_tagging();
|
|
char a[] = {static_cast<char>(argc), 2, 3, 4};
|
|
int size = sizeof(a);
|
|
char *volatile p = (char *)malloc(size);
|
|
void *volatile p2 = p;
|
|
for (int i = 0; p2 == p; p2 = __hwasan_tag_pointer(p, ++i)) {
|
|
}
|
|
ForceCallInterceptor(p2, 0, size);
|
|
free(p);
|
|
fprintf(stderr, "RETURN_FROM_TEST\n");
|
|
return 0;
|
|
// CHECK: HWAddressSanitizer: tag-mismatch on address
|
|
// CHECK: WRITE of size 4
|
|
// CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memset-recover.cpp:[[@LINE-28]]
|
|
// RECOVER: RETURN_FROM_TEST
|
|
}
|