debug/tst-ssp-1.c

   1 /* Verify that __stack_chk_fail won't segfault.
   2    Copyright (C) 2017-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 /* Based on gcc.dg/ssp-1.c from GCC testsuite.  */
  20
  21 #include <signal.h>
  22
  23 static void
  24 __attribute__ ((noinline, noclone))
  25 test (char *foo)
  26 {
  27   int i;
  28
  29   /* smash stack */
  30   for (i = 0; i <= 400; i++)
  31     foo[i] = 42;
  32 }
  33
  34 static int
  35 do_test (void)
  36 {
  37   char foo[30];
  38
  39   test (foo);
  40
  41   return 1; /* fail */
  42 }
  43
  44 #define EXPECTED_SIGNAL SIGABRT
  45 #include <support/test-driver.c>