gdb/testsuite/gdb.base/auxv.c

   1 /* Copyright 1992-2019 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 /* Simple little program that just generates a core dump from inside some
  19    nested function calls.  Keep this as self contained as possible, I.E.
  20    use no environment resources other than possibly abort(). */
  21
  22 #ifndef __STDC__
  23 #define const   /**/
  24 #endif
  25
  26 #ifndef HAVE_ABORT
  27 #define HAVE_ABORT 1
  28 #endif
  29
  30 #if HAVE_ABORT
  31 #include <stdlib.h>
  32 #define ABORT abort()
  33 #else
  34 #define ABORT {char *invalid = 0; *invalid = 0xFF;}
  35 #endif
  36
  37 #ifdef USE_RLIMIT
  38 # include <sys/resource.h>
  39 # ifndef RLIM_INFINITY
  40 #  define RLIM_INFINITY -1
  41 # endif
  42 #endif /* USE_RLIMIT */
  43
  44 /* Don't make these automatic vars or we will have to walk back up the
  45    stack to access them. */
  46
  47 char *buf1;
  48 char *buf2;
  49
  50 int coremaker_data = 1; /* In Data section */
  51 int coremaker_bss;      /* In BSS section */
  52
  53 const int coremaker_ro = 201;   /* In Read-Only Data section */
  54
  55 void
  56 func2 (int x)
  57 {
  58   int coremaker_local[5];
  59   int i;
  60   static int y;
  61
  62 #ifdef USE_RLIMIT
  63   {
  64     struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY };
  65
  66     setrlimit (RLIMIT_CORE, &rlim);
  67   }
  68 #endif
  69
  70   /* Make sure that coremaker_local doesn't get optimized away. */
  71   for (i = 0; i < 5; i++)
  72     coremaker_local[i] = i;
  73   coremaker_bss = 0;
  74   for (i = 0; i < 5; i++)
  75     coremaker_bss += coremaker_local[i];
  76   coremaker_data = coremaker_ro + 1;
  77   y = 10 * x;
  78   ABORT;
  79 }
  80
  81 void
  82 func1 (int x)
  83 {
  84   func2 (x * 2);
  85 }
  86
  87 int main ()
  88 {
  89   func1 (10);
  90   return 0;
  91 }