gdb/testsuite/gdb.multi/multi-attach.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2007-2020 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 /* This program is intended to be started outside of gdb, and then
  19    attached to by gdb.  It loops for a while, but not forever.  */
  20
  21 #include <unistd.h>
  22 #include <pthread.h>
  23
  24 static void *
  25 thread_func (void *arg)
  26 {
  27   int i;
  28
  29   for (i = 0; i < 120; i++)
  30     sleep (1);
  31
  32   return NULL;
  33 }
  34
  35 int main ()
  36 {
  37   int i;
  38   pthread_t thread;
  39
  40   pthread_create (&thread, NULL, thread_func, NULL);
  41
  42   for (i = 0; i < 120; i++)
  43     sleep (1);
  44
  45   pthread_join (thread, NULL);
  46
  47   return 0;
  48 }