Stephen Hines | 6a211c5 | 2014-07-21 00:49:56 -0700 | [diff] [blame] | 1 | // RUN: %clangxx_asan -O0 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s |
| 2 | // RUN: %clangxx_asan -O1 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s |
| 3 | // RUN: %clangxx_asan -O2 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s |
| 4 | // RUN: %clangxx_asan -O3 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s |
| 5 | // REQUIRES: stable-runtime |
Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame] | 6 | |
| 7 | #include <pthread.h> |
| 8 | |
| 9 | int *x; |
| 10 | |
| 11 | void *AllocThread(void *arg) { |
| 12 | x = new int; |
| 13 | *x = 42; |
| 14 | return NULL; |
| 15 | } |
| 16 | |
| 17 | void *FreeThread(void *arg) { |
| 18 | delete x; |
| 19 | return NULL; |
| 20 | } |
| 21 | |
| 22 | void *AccessThread(void *arg) { |
| 23 | *x = 43; // BOOM |
| 24 | return NULL; |
| 25 | } |
| 26 | |
| 27 | typedef void* (*callback_type)(void* arg); |
| 28 | |
| 29 | void *RunnerThread(void *function) { |
| 30 | pthread_t thread; |
| 31 | pthread_create(&thread, NULL, (callback_type)function, NULL); |
| 32 | pthread_join(thread, NULL); |
| 33 | return NULL; |
| 34 | } |
| 35 | |
| 36 | void RunThread(callback_type function) { |
| 37 | pthread_t runner; |
| 38 | pthread_create(&runner, NULL, RunnerThread, (void*)function); |
| 39 | pthread_join(runner, NULL); |
| 40 | } |
| 41 | |
| 42 | int main(int argc, char *argv[]) { |
| 43 | RunThread(AllocThread); |
| 44 | RunThread(FreeThread); |
| 45 | RunThread(AccessThread); |
| 46 | return (x != 0); |
| 47 | } |
| 48 | |
| 49 | // CHECK: AddressSanitizer: heap-use-after-free |
| 50 | // CHECK: WRITE of size 4 at 0x{{.*}} thread T[[ACCESS_THREAD:[0-9]+]] |
| 51 | // CHECK: freed by thread T[[FREE_THREAD:[0-9]+]] here: |
| 52 | // CHECK: previously allocated by thread T[[ALLOC_THREAD:[0-9]+]] here: |
| 53 | // CHECK: Thread T[[ACCESS_THREAD]] created by T[[ACCESS_RUNNER:[0-9]+]] here: |
| 54 | // CHECK: Thread T[[ACCESS_RUNNER]] created by T0 here: |
| 55 | // CHECK: Thread T[[FREE_THREAD]] created by T[[FREE_RUNNER:[0-9]+]] here: |
| 56 | // CHECK: Thread T[[FREE_RUNNER]] created by T0 here: |
| 57 | // CHECK: Thread T[[ALLOC_THREAD]] created by T[[ALLOC_RUNNER:[0-9]+]] here: |
| 58 | // CHECK: Thread T[[ALLOC_RUNNER]] created by T0 here: |