gdb/testsuite/gdb.threads/next-bp-other-thread.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2014-2024 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 <unistd.h>
  20 #include <stdlib.h>
  21
  22 /* Always zero, used in breakpoint condition.  */
  23 volatile int global_zero;
  24
  25 static pthread_barrier_t threads_started_barrier;
  26
  27 void *
  28 child_function (void *arg)
  29 {
  30   pthread_barrier_wait (&threads_started_barrier);
  31
  32   while (1)
  33     {
  34       usleep (1); /* set breakpoint child here */
  35     }
  36
  37   pthread_exit (NULL);
  38 }
  39
  40 int
  41 main (void)
  42 {
  43   pthread_t child_thread;
  44   int res;
  45
  46   pthread_barrier_init (&threads_started_barrier, NULL, 2);
  47
  48   res = pthread_create (&child_thread, NULL, child_function, NULL);
  49
  50   pthread_barrier_wait (&threads_started_barrier);
  51
  52   sleep (2); /* set wait-thread breakpoint here */
  53   exit (EXIT_SUCCESS);
  54 }