| // RUN: %clangxx_asan -O0 %s -o %t && %t 2>&1 | FileCheck %s |
| // RUN: %clangxx_asan -O1 %s -o %t && %t 2>&1 | FileCheck %s |
| // RUN: %clangxx_asan -O2 %s -o %t && %t 2>&1 | FileCheck %s |
| // RUN: %clangxx_asan -O3 %s -o %t && %t 2>&1 | FileCheck %s |
| |
| #include <pthread.h> |
| |
| int *x; |
| |
| void *AllocThread(void *arg) { |
| x = new int; |
| *x = 42; |
| return NULL; |
| } |
| |
| void *FreeThread(void *arg) { |
| delete x; |
| return NULL; |
| } |
| |
| void *AccessThread(void *arg) { |
| *x = 43; // BOOM |
| return NULL; |
| } |
| |
| typedef void* (*callback_type)(void* arg); |
| |
| void *RunnerThread(void *function) { |
| pthread_t thread; |
| pthread_create(&thread, NULL, (callback_type)function, NULL); |
| pthread_join(thread, NULL); |
| return NULL; |
| } |
| |
| void RunThread(callback_type function) { |
| pthread_t runner; |
| pthread_create(&runner, NULL, RunnerThread, (void*)function); |
| pthread_join(runner, NULL); |
| } |
| |
| int main(int argc, char *argv[]) { |
| RunThread(AllocThread); |
| RunThread(FreeThread); |
| RunThread(AccessThread); |
| return (x != 0); |
| } |
| |
| // CHECK: AddressSanitizer: heap-use-after-free |
| // CHECK: WRITE of size 4 at 0x{{.*}} thread T[[ACCESS_THREAD:[0-9]+]] |
| // CHECK: freed by thread T[[FREE_THREAD:[0-9]+]] here: |
| // CHECK: previously allocated by thread T[[ALLOC_THREAD:[0-9]+]] here: |
| // CHECK: Thread T[[ACCESS_THREAD]] created by T[[ACCESS_RUNNER:[0-9]+]] here: |
| // CHECK: Thread T[[ACCESS_RUNNER]] created by T0 here: |
| // CHECK: Thread T[[FREE_THREAD]] created by T[[FREE_RUNNER:[0-9]+]] here: |
| // CHECK: Thread T[[FREE_RUNNER]] created by T0 here: |
| // CHECK: Thread T[[ALLOC_THREAD]] created by T[[ALLOC_RUNNER:[0-9]+]] here: |
| // CHECK: Thread T[[ALLOC_RUNNER]] created by T0 here: |