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author | H.J. Lu <hjl.tools@gmail.com> | 2023-03-21 12:53:24 -0700 |
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committer | H.J. Lu <hjl.tools@gmail.com> | 2023-12-19 06:57:27 -0800 |
commit | f418fe6f973300c4c61461ed241928cba11017c2 (patch) | |
tree | 4ff1bf3b1d28972033078d2b9b136818c1369019 /sysdeps/x86/tst-shstk-legacy-1b.c | |
parent | 1e7025250843f234ac6743dd0dcd8aa9018bae3f (diff) | |
download | glibc-f418fe6f973300c4c61461ed241928cba11017c2.zip glibc-f418fe6f973300c4c61461ed241928cba11017c2.tar.gz glibc-f418fe6f973300c4c61461ed241928cba11017c2.tar.bz2 |
x86/cet: Check legacy shadow stack applications
Add tests to verify that legacy shadow stack applications run properly
when shadow stack is enabled in Linux kernel.
Diffstat (limited to 'sysdeps/x86/tst-shstk-legacy-1b.c')
-rw-r--r-- | sysdeps/x86/tst-shstk-legacy-1b.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sysdeps/x86/tst-shstk-legacy-1b.c b/sysdeps/x86/tst-shstk-legacy-1b.c new file mode 100644 index 0000000..05231e6 --- /dev/null +++ b/sysdeps/x86/tst-shstk-legacy-1b.c @@ -0,0 +1,38 @@ +/* Check that legacy shadow stack code 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 will trigger segfault. */ +extern void legacy (void); + +static int +do_test (void) +{ + if (!CPU_FEATURE_ACTIVE (SHSTK)) + return EXIT_UNSUPPORTED; + + legacy (); + return EXIT_FAILURE; +} + +#define EXPECTED_SIGNAL (CPU_FEATURE_ACTIVE (SHSTK) ? SIGSEGV : 0) +#include <support/test-driver.c> |