gdb/testsuite/gdb.mi/mi-pending.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2007-2019 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 <dlfcn.h>
  19 #include <pthread.h>
  20
  21 #define NUM 2
  22
  23 extern void pendfunc (int x);
  24
  25 void*
  26 thread_func (void* arg)
  27 {
  28   const char *libname = "mi-pendshr2.sl";
  29   void *h;
  30   int (*p_func) ();
  31
  32   h = dlopen (libname, RTLD_LAZY);  /* set breakpoint here */
  33   if (h == NULL)
  34     return NULL;
  35
  36   p_func = dlsym (h, "pendfunc3");
  37   if (p_func == NULL)
  38     return NULL;
  39
  40   (*p_func) ();
  41 }
  42
  43 int main()
  44 {
  45   int res;
  46   pthread_t threads[NUM];
  47   int i;
  48
  49   pendfunc (3);
  50   pendfunc (4);
  51
  52   for (i = 0; i < NUM; i++)
  53     {
  54       res = pthread_create (&threads[i],
  55                              NULL,
  56                              &thread_func,
  57                              NULL);
  58     }
  59
  60   for (i = 0; i < NUM; i++) {
  61     res = pthread_join (threads[i], NULL);
  62   }
  63
  64   return 0;
  65 }