gdb/testsuite/gdb.threads/infcall-from-bp-cond-simple.c

   1 /* Copyright 2022-2024 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   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 <unistd.h>
  20
  21 #define NUM_THREADS 3
  22
  23 int
  24 is_matching_tid (int *tid_ptr, int tid_value)
  25 {
  26   return *tid_ptr == tid_value;
  27 }
  28
  29 int
  30 return_true ()
  31 {
  32   return 1;
  33 }
  34
  35 int
  36 return_false ()
  37 {
  38   return 0;
  39 }
  40
  41 int
  42 function_that_segfaults ()
  43 {
  44   int *p = 0;
  45   *p = 1;       /* Segfault happens here.   */
  46 }
  47
  48 int
  49 function_with_breakpoint ()
  50 {
  51   return 1;     /* Nested breakpoint.  */
  52 }
  53
  54 void *
  55 worker_func (void *arg)
  56 {
  57   int a = 42;   /* Breakpoint here.  */
  58 }
  59
  60 void
  61 stop_marker ()
  62 {
  63   int b = 99;   /* Stop marker.  */
  64 }
  65
  66 int
  67 main ()
  68 {
  69   pthread_t threads[NUM_THREADS];
  70   int args[NUM_THREADS];
  71
  72   alarm (300);
  73
  74   for (int i = 0; i < NUM_THREADS; i++)
  75     {
  76       args[i] = i;
  77       pthread_create (&threads[i], NULL, worker_func, &args[i]);
  78     }
  79
  80   for (int i = 0; i < NUM_THREADS; i++)
  81     {
  82       void *retval;
  83       pthread_join (threads[i], &retval);
  84     }
  85
  86   stop_marker ();
  87
  88   return 0;
  89 }