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/* Check that legacy shadow stack code in init_array will trigger
segfault.
Copyright (C) 2023-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <sys/platform/x86.h>
#include <support/test-driver.h>
#include <support/xsignal.h>
/* Check that legacy shadow stack code in init_array will trigger
segfault. */
extern void legacy (void);
int done;
void
legacy_1 (void)
{
legacy ();
done = 1;
}
void (*init_array []) (void)
__attribute__ ((section (".init_array"), aligned (sizeof (void *)))) =
{
&legacy_1
};
static int
do_test (void)
{
if (!CPU_FEATURE_ACTIVE (SHSTK))
return EXIT_UNSUPPORTED;
return EXIT_FAILURE;
}
#define EXPECTED_SIGNAL (CPU_FEATURE_ACTIVE (SHSTK) ? SIGSEGV : 0)
#include <support/test-driver.c>
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