gdb/testsuite/gdb.threads/continue-pending-status.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2015-2024 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 <stdio.h>
  19 #include <unistd.h>
  20 #include <stdlib.h>
  21 #include <pthread.h>
  22 #include <assert.h>
  23
  24 pthread_barrier_t barrier;
  25
  26 #define NUM_THREADS 2
  27
  28 void *
  29 thread_function (void *arg)
  30 {
  31   /* This ensures that the breakpoint is only hit after both threads
  32      are created, so the test can always switch to the non-event
  33      thread when the breakpoint triggers.  */
  34   pthread_barrier_wait (&barrier);
  35
  36   while (1); /* break here */
  37 }
  38
  39 int
  40 main (void)
  41 {
  42   int i;
  43
  44   alarm (300);
  45
  46   pthread_barrier_init (&barrier, NULL, NUM_THREADS);
  47
  48   for (i = 0; i < NUM_THREADS; i++)
  49     {
  50       pthread_t thread;
  51       int res;
  52
  53       res = pthread_create (&thread, NULL,
  54                             thread_function, NULL);
  55       assert (res == 0);
  56     }
  57
  58   while (1)
  59     sleep (1);
  60
  61   return 0;
  62 }