gdb/testsuite/gdb.threads/attach-non-stop.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2021-2023 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 #define _GNU_SOURCE
  19 #include <assert.h>
  20 #include <pthread.h>
  21 #include <unistd.h>
  22
  23 /* Number of threads we'll create.  */
  24 static const int n_threads = 10;
  25
  26 /* Entry point for threads.  Loops forever.  */
  27
  28 void *
  29 thread_func (void *arg)
  30 {
  31   while (1)
  32     sleep (1);
  33
  34   return NULL;
  35 }
  36
  37 int
  38 main (int argc, char **argv)
  39 {
  40   int i;
  41
  42   alarm (30);
  43
  44   /* Spawn the test threads.  */
  45   for (i = 0; i < n_threads; ++i)
  46     {
  47       pthread_t child;
  48       int rc;
  49
  50       rc = pthread_create (&child, NULL, thread_func, NULL);
  51       assert (rc == 0);
  52     }
  53
  54   while (1)
  55     sleep (1);
  56
  57   return 0;
  58 }