gdb/testsuite/gdb.threads/stepi-random-signal.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2013-2020 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 <signal.h>
  20 #include <unistd.h>
  21
  22 static pthread_t main_thread;
  23
  24 static void *
  25 start (void *arg)
  26 {
  27   /* A signal whose default action is ignore.  */
  28   pthread_kill (main_thread, SIGCHLD);
  29
  30   while (1)
  31     sleep (1); /* set break here */
  32   return NULL;
  33 }
  34
  35 int
  36 main (void)
  37 {
  38   unsigned int counter = 1;
  39   pthread_t thread;
  40
  41   main_thread = pthread_self ();
  42   pthread_create (&thread, NULL, start, NULL);
  43
  44   while (counter != 0)
  45     counter++; /* set break 2 here */
  46
  47   return 0;
  48 }