gdb/testsuite/gdb.threads/step-over-thread-exit.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2021-2024 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <pthread.h>
  19 #include <assert.h>
  20 #include <stdlib.h>
  21 #include <unistd.h>
  22 #include "../lib/my-syscalls.h"
  23
  24 static void *
  25 thread_func (void *arg)
  26 {
  27   my_exit (0);
  28
  29   /* my_exit above should exit the thread, we don't expect to reach
  30      here.  */
  31   abort ();
  32 }
  33
  34 /* Number of threads we'll create.  */
  35 int n_threads = 100;
  36
  37 int
  38 main (int argc, char **argv)
  39 {
  40   int i;
  41
  42   if (argc > 1)
  43     n_threads = atoi (argv[1]);
  44
  45   /* Spawn and join a thread, N_THREADS times.  */
  46   for (i = 0; i < n_threads; i++)
  47     {
  48       pthread_t thread;
  49       int ret;
  50
  51       ret = pthread_create (&thread, NULL, thread_func, NULL);
  52       assert (ret == 0);
  53
  54       ret = pthread_join (thread, NULL);
  55       assert (ret == 0);
  56     }
  57
  58   /* Some time to make sure that GDB processes the thread exit event
  59      before the whole-process exit.  */
  60   sleep (3);
  61   return 0;
  62 }