mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 06:50:07 +00:00
28bd6f832d
Verify that legacy shadow stack code in .init_array section in application and shared library, which are marked as shadow stack enabled, will trigger segfault.
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/* Check that legacy shadow stack code in init_array will trigger
|
|
segfault.
|
|
Copyright (C) 2023 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>
|