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

   1 /* Check that legacy shadow stack code in init_array won't trigger
   2    segfault.
   3    Copyright (C) 2023-2024 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <stdlib.h>
  21 #include <support/test-driver.h>
  22
  23 /* Check that legacy shadow stack code in init_array won't trigger
  24    segfault.  */
  25 extern void legacy (void);
  26 int done;
  27
  28 void
  29 legacy_1 (void)
  30 {
  31   legacy ();
  32   done = 1;
  33 }
  34
  35 void (*init_array []) (void)
  36      __attribute__ ((section (".init_array"), aligned (sizeof (void *)))) =
  37 {
  38   &legacy_1
  39 };
  40
  41 static int
  42 do_test (void)
  43 {
  44   return EXIT_SUCCESS;
  45 }
  46
  47 #include <support/test-driver.c>