gdb/testsuite/gdb.btrace/enable-running.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2017-2022 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
  21 #define NTHREADS 3
  22
  23 static void *
  24 test (void *arg)
  25 {
  26   /* Let's hope this is long enough for GDB to enable tracing and check that
  27      everything is working as expected.  */
  28   int unslept = 10;
  29   while (unslept > 0)
  30     unslept = sleep (unslept);
  31
  32   return arg;
  33 }
  34
  35 int
  36 main (void)
  37 {
  38   pthread_t th[NTHREADS];
  39   int i;
  40
  41   for (i = 0; i < NTHREADS; ++i)
  42     pthread_create (&th[i], NULL, test, NULL);
  43
  44   test (NULL); /* bp.1 */
  45
  46   for (i = 0; i < NTHREADS; ++i)
  47     pthread_join (th[i], NULL);
  48
  49   return 0;
  50 }