gdb/testsuite/gdb.threads/signal-command-handle-nopass.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2014-2015 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 <signal.h>
  23
  24 void
  25 handler (int sig)
  26 {
  27 }
  28
  29 void *
  30 thread_function (void *arg)
  31 {
  32   volatile unsigned int i = 1;
  33
  34   while (i != 0)
  35     usleep (1);
  36 }
  37
  38 int
  39 main (void)
  40 {
  41   pthread_t child_thread;
  42   int i;
  43
  44   signal (SIGUSR1, handler);
  45   pthread_create (&child_thread, NULL, thread_function, NULL);
  46   pthread_join (child_thread, NULL);
  47
  48   return 0;
  49 }