| // RUN: %clang_hwasan -O0 -DLOAD %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,LOAD |
| // RUN: %clang_hwasan -O1 -DLOAD %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,LOAD |
| // RUN: %clang_hwasan -O2 -DLOAD %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,LOAD |
| // RUN: %clang_hwasan -O3 -DLOAD %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,LOAD |
| |
| // RUN: %clang_hwasan -O0 -DSTORE %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,STORE |
| |
| // REQUIRES: stable-runtime |
| |
| #include <stdlib.h> |
| #include <sanitizer/hwasan_interface.h> |
| |
| int main() { |
| __hwasan_enable_allocator_tagging(); |
| char * volatile x = (char*)malloc(10); |
| free(x); |
| __hwasan_disable_allocator_tagging(); |
| #ifdef STORE |
| x[5] = 42; |
| #endif |
| #ifdef LOAD |
| return x[5]; |
| #endif |
| // LOAD: READ of size 1 at |
| // LOAD: #0 {{.*}} in main {{.*}}use-after-free.c:22 |
| |
| // STORE: WRITE of size 1 at |
| // STORE: #0 {{.*}} in main {{.*}}use-after-free.c:19 |
| |
| // CHECK: freed here: |
| // CHECK: #0 {{.*}} in {{.*}}free{{.*}} {{.*}}hwasan_interceptors.cc |
| // CHECK: #1 {{.*}} in main {{.*}}use-after-free.c:16 |
| |
| // CHECK: previously allocated here: |
| // CHECK: #0 {{.*}} in {{.*}}malloc{{.*}} {{.*}}hwasan_interceptors.cc |
| // CHECK: #1 {{.*}} in main {{.*}}use-after-free.c:15 |
| |
| // CHECK: SUMMARY: HWAddressSanitizer: tag-mismatch {{.*}} in main |
| } |
