gdb/testsuite/gdb.mi/pthreads.c

   1 /* Pthreads test program.
   2    Copyright 1996-2024 Free Software Foundation, Inc.
   3
   4    Written by Keith Seitz of Red Hat.
   5    Copied from gdb.threads/pthreads.c.
   6    Contributed by Red Hat.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <pthread.h>
  26 #include <unistd.h>
  27
  28 void *
  29 routine (void *arg)
  30 {
  31   /* When gdb is running, it sets hidden breakpoints in the thread
  32      library.  The signals caused by these hidden breakpoints can
  33      cause system calls such as 'sleep' to return early.  Pay attention
  34      to the return value from 'sleep' to get the full sleep.  */
  35   int unslept = 9;
  36   while (unslept > 0)
  37     unslept = sleep (unslept);
  38
  39   printf ("hello thread\n");
  40 }
  41
  42 /* Marker function for the testsuite */
  43 void
  44 done_making_threads (void)
  45 {
  46   /* Nothing */
  47 }
  48
  49 void
  50 create_thread (void)
  51 {
  52   pthread_t tid;
  53
  54   if (pthread_create (&tid, NULL, routine, (void *) 0xfeedface))
  55     {
  56       perror ("pthread_create 1");
  57       exit (1);
  58     }
  59 }
  60
  61 int
  62 main (int argc, char *argv[])
  63 {
  64   int i;
  65
  66   /* Create a few threads */
  67   for (i = 0; i < 5; i++)
  68     create_thread ();
  69   done_making_threads ();
  70
  71   printf ("hello\n");
  72   printf ("hello\n");
  73   return 0;
  74 }
  75