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
6
7 #include <pthread.h>
8
9 int *x;
10
AllocThread(void * arg)11 void *AllocThread(void *arg) {
12 x = new int;
13 *x = 42;
14 return NULL;
15 }
16
FreeThread(void * arg)17 void *FreeThread(void *arg) {
18 delete x;
19 return NULL;
20 }
21
AccessThread(void * arg)22 void *AccessThread(void *arg) {
23 *x = 43; // BOOM
24 return NULL;
25 }
26
27 typedef void* (*callback_type)(void* arg);
28
RunnerThread(void * function)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
RunThread(callback_type function)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
main(int argc,char * argv[])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:
59