compiler-rt/test/asan/TestCases/Posix/deep_thread_stack.cpp

   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
  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: