| 1 | // Check that we detect malloc/delete mismatch only if the appropriate flag |
|---|
| 2 | // is set. |
|---|
| 3 | |
|---|
| 4 | // RUN: %clangxx_asan -g %s -o %t 2>&1 |
|---|
| 5 | |
|---|
| 6 | // Find error and provide malloc context. |
|---|
| 7 | // RUN: %env_asan_opts=alloc_dealloc_mismatch=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=ALLOC-STACK |
|---|
| 8 | |
|---|
| 9 | // No error here. |
|---|
| 10 | // RUN: %env_asan_opts=alloc_dealloc_mismatch=0 %run %t |
|---|
| 11 | |
|---|
| 12 | // Also works if no malloc context is available. |
|---|
| 13 | // RUN: %env_asan_opts=alloc_dealloc_mismatch=1:malloc_context_size=0:fast_unwind_on_malloc=0 not %run %t 2>&1 | FileCheck %s |
|---|
| 14 | // RUN: %env_asan_opts=alloc_dealloc_mismatch=1:malloc_context_size=0:fast_unwind_on_malloc=1 not %run %t 2>&1 | FileCheck %s |
|---|
| 15 | // REQUIRES: stable-runtime |
|---|
| 16 | #include <stdlib.h> |
|---|
| 17 | |
|---|
| 18 | static volatile char *x; |
|---|
| 19 | |
|---|
| 20 | int main() { |
|---|
| 21 | x = (char*)malloc(size: 10); |
|---|
| 22 | x[0] = 0; |
|---|
| 23 | delete x; |
|---|
| 24 | } |
|---|
| 25 | // CHECK: ERROR: AddressSanitizer: alloc-dealloc-mismatch (malloc vs operator delete) on 0x |
|---|
| 26 | // CHECK-NEXT: #0{{.*}}operator delete |
|---|
| 27 | // CHECK: #{{.*}}main |
|---|
| 28 | // CHECK: is located 0 bytes inside of 10-byte region |
|---|
| 29 | // CHECK-NEXT: allocated by thread T0 here: |
|---|
| 30 | // ALLOC-STACK-NEXT: #0{{.*}}malloc |
|---|
| 31 | // ALLOC-STACK: #{{.*}}main |
|---|
| 32 | // CHECK: HINT: {{.*}} you may set ASAN_OPTIONS=alloc_dealloc_mismatch=0 |
|---|
| 33 | |
|---|
