C++ (Cpp) setup_signal_stack Examples

Example #1

File: recursive.c Project: EmilyBragg/profiling-tool

int main(int argc, char **argv) {
  int ret_val;
  struct utsname uinfo;

  uname(&uinfo);
  if (uinfo.release[0] == '2' && uinfo.release[2] == '6')
    maxDepth = 1;
  
  p_saved_ctxt = malloc(sizeof(ucontext_t));

  setup_signal_stack();
  install_signal_handler();

  ret_val = getcontext(p_saved_ctxt);
  if(ret_val) {
    perror("ERROR, getcontext failed");
    exit(1);
  }

  p_saved_ctxt->uc_mcontext.gregs[REG_EIP] = (int)&&safe_exit;

  generate_segv(1);

 safe_exit:  
  printf("safe exit\n");
  printSignalMask();

  return 0;
}

Example #2

File: sigsuspend.c Project: alagenchev/school_code

int main(int argc, char **argv) {
  pthread_t tid;
  int ret_val;
  void *thread_ret;
  int cont = 0;

  setup_signal_stack();
  install_signal_handler();

  ret_val = pthread_create(&tid, NULL, thread_start, NULL);
  if(ret_val) {
    perror("ERROR, pthread_create failed");
    exit(1);
  }

  printf("created thread 0x%lx\n", (long)tid);

  while(!cont) {
    lock();
    if(thread_alive == 1) cont = 1;
    unlock();
  }

  ret_val = pthread_kill(tid, SIGUSR1);
  if(ret_val) {
    perror("ERROR: pthread_kill failed");
    exit(1);
  }

  cont = 0;
  while(!cont) {
    lock();
    if(thread_alive == 2) cont = 1;
    unlock();
  }

  ret_val = pthread_kill(tid, SIGUSR1);
  if(ret_val) {
    perror("ERROR: pthread_kill failed");
    exit(1);
  }

  ret_val = pthread_join(tid, NULL);
  if(ret_val) {
    perror("ERROR: pthread_join failed");
    exit(1);
  }
}