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/* Check compatibility of CET-enabled executable with dlopened legacy
shared object.
Copyright (C) 2018-2024 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 <dlfcn.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/platform/x86.h>
#include <support/check.h>
static int
do_test (void)
{
static const char modname[] = "tst-cet-legacy-mod-4.so";
int (*fp) (void);
void *h;
h = dlopen (modname, RTLD_LAZY);
if (h == NULL)
{
const char *err = dlerror ();
if (!strstr (err, "rebuild shared object with IBT support enabled"))
FAIL_EXIT1 ("incorrect dlopen '%s' error: %s\n", modname, err);
return 0;
}
#ifdef CET_IS_PERMISSIVE
TEST_VERIFY (!CPU_FEATURE_ACTIVE (IBT) && !CPU_FEATURE_ACTIVE (SHSTK));
#endif
fp = dlsym (h, "test");
if (fp == NULL)
FAIL_EXIT1 ("cannot get symbol 'test': %s\n", dlerror ());
if (fp () != 0)
FAIL_EXIT1 ("test () != 0");
dlclose (h);
return 0;
}
#include <support/test-driver.c>
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