sysdeps/x86/tst-shstk-legacy-1b.c

   1 /* Check that legacy shadow stack code will trigger segfault.
   2    Copyright (C) 2023-2024 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 #include <stdlib.h>
  20 #include <sys/platform/x86.h>
  21 #include <support/test-driver.h>
  22 #include <support/xsignal.h>
  23
  24 /* Check that legacy shadow stack code will trigger segfault.  */
  25 extern void legacy (void);
  26
  27 static int
  28 do_test (void)
  29 {
  30   if (!CPU_FEATURE_ACTIVE (SHSTK))
  31     return EXIT_UNSUPPORTED;
  32
  33   legacy ();
  34   return EXIT_FAILURE;
  35 }
  36
  37 #define EXPECTED_SIGNAL (CPU_FEATURE_ACTIVE (SHSTK) ? SIGSEGV : 0)
  38 #include <support/test-driver.c>