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// RUN: %clangxx_asan -O0 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O1 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O2 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O3 %s -pthread -o %t && not %run %t 2>&1 | FileCheck %s
// REQUIRES: stable-runtime
#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:
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