compiler-rt/test/asan/TestCases/Posix/init-order-pthread-create.cpp

   1 // Check that init-order checking is properly disabled if pthread_create is
   2 // called.
   3
   4 // RUN: %clangxx_asan -c -DCONFIG1 %s -o %t1.o
   5 // RUN: %clangxx_asan -c           %s -o %t2.o
   6 // RUN: %clangxx_asan -pthread %t1.o %t2.o -o %t
   7 // RUN: %env_asan_opts=strict_init_order=true %run %t
   8
   9 #ifdef CONFIG1
  10
  11 #include <stdio.h>
  12 #include <pthread.h>
  13 #include <unistd.h>
  14
  15 void *bar(void *input, bool sleep_before_init) {
  16   if (sleep_before_init)
  17     usleep(500000);
  18   return input;
  19 }
  20
  21 void *glob = bar((void*)0x1234, false);
  22 extern void *glob2;
  23
  24 void *poll(void *arg) {
  25   void **glob = (void**)arg;
  26   while (true) {
  27     usleep(100000);
  28     printf("glob is now: %p\n", *glob);
  29   }
  30 }
  31
  32 struct GlobalPollerStarter {
  33   GlobalPollerStarter() {
  34     pthread_t p;
  35     pthread_attr_t attr;
  36     pthread_attr_init(&attr);
  37     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
  38     pthread_create(&p, 0, poll, &glob);
  39     pthread_attr_destroy(&attr);
  40     printf("glob poller is started");
  41   }
  42 } global_poller;
  43
  44 int main() {
  45   printf("%p %p\n", glob, glob2);
  46   return 0;
  47 }
  48
  49 #else // CONFIG1
  50
  51 void *bar(void *input, bool sleep_before_init);
  52 void *glob2 = bar((void*)0x2345, true);
  53
  54 #endif