| // RUN: %clangxx_hwasan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s |
| // RUN: %clangxx_hwasan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s |
| // RUN: %clangxx_hwasan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s |
| // RUN: %clangxx_hwasan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s |
| // REQUIRES: !android |
| |
| #include <assert.h> |
| #include <sanitizer/hwasan_interface.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| __attribute__((no_sanitize("hwaddress"))) void |
| ForceCallInterceptor(void *p, const void *a, size_t size) { |
| assert(bcmp(p, a, size) == 0); |
| } |
| |
| int main(int argc, char **argv) { |
| __hwasan_enable_allocator_tagging(); |
| char a[] = {static_cast<char>(argc), 2, 3, 4}; |
| int size = sizeof(a); |
| char *p = (char *)malloc(size); |
| memcpy(p, a, size); |
| free(p); |
| ForceCallInterceptor(p, a, size); |
| return 0; |
| // CHECK: HWAddressSanitizer: tag-mismatch on address |
| // CHECK: READ of size 4 |
| // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-4]] |
| // CHECK: Cause: use-after-free |
| // CHECK: freed by thread |
| // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-8]] |
| // CHECK: previously allocated by thread |
| // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}bcmp.cpp:[[@LINE-12]] |
| } |