nptl/tst-backtrace1.c

   1 /* Copyright (C) 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <execinfo.h>
  21 #include <pthread.h>
  22 #include <stdio.h>
  23
  24 #define BT_SIZE 64
  25 void *bt_array[BT_SIZE];
  26 int bt_cnt;
  27
  28 int
  29 do_bt (void)
  30 {
  31   bt_cnt = backtrace (bt_array, BT_SIZE);
  32   return 56;
  33 }
  34
  35 int
  36 call_do_bt (void)
  37 {
  38   return do_bt () + 1;
  39 }
  40
  41 void *
  42 tf (void *arg)
  43 {
  44   if (call_do_bt () != 57)
  45     return (void *) 1L;
  46   return NULL;
  47 }
  48
  49 int
  50 do_test (void)
  51 {
  52   pthread_t th;
  53   if (pthread_create (&th, NULL, tf, NULL))
  54     {
  55       puts ("create failed");
  56       return 1;
  57     }
  58
  59   void *res;
  60   if (pthread_join (th, &res))
  61     {
  62       puts ("join failed");
  63       return 1;
  64     }
  65
  66   if (res != NULL)
  67     {
  68       puts ("thread failed");
  69       return 1;
  70     }
  71
  72   char **text = backtrace_symbols (bt_array, bt_cnt);
  73   if (text == NULL)
  74     {
  75       puts ("backtrace_symbols failed");
  76       return 1;
  77     }
  78
  79   for (int i = 0; i < bt_cnt; ++i)
  80     puts (text[i]);
  81
  82   return 0;
  83 }
  84
  85 #define TEST_FUNCTION do_test ()
  86 #include "../test-skeleton.c"