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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-02-18 14:19:15 -0600 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-02-18 16:35:18 -0600 |
| commit | 7835d611af0854e69a0c71e3806f8fe379282d6f (patch) | |
| tree | 531aa988558f915a0400ec7658280318802c7954 /sysdeps/x86/tst-wcsncmp-rtm.c | |
| parent | 71b108d7eb33b2bf3e61d5e92d2a47f74c1f7d96 (diff) | |
| download | glibc-7835d611af0854e69a0c71e3806f8fe379282d6f.tar.gz glibc-7835d611af0854e69a0c71e3806f8fe379282d6f.tar.xz glibc-7835d611af0854e69a0c71e3806f8fe379282d6f.zip | |
x86: Test wcscmp RTM in the wcsncmp overflow case [BZ #28896]
In the overflow fallback strncmp-avx2-rtm and wcsncmp-avx2-rtm would call strcmp-avx2 and wcscmp-avx2 respectively. This would have not checks around vzeroupper and would trigger spurious aborts. This commit fixes that. test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass on AVX2 machines with and without RTM. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'sysdeps/x86/tst-wcsncmp-rtm.c')
| -rw-r--r-- | sysdeps/x86/tst-wcsncmp-rtm.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sysdeps/x86/tst-wcsncmp-rtm.c b/sysdeps/x86/tst-wcsncmp-rtm.c new file mode 100644 index 0000000000..bad3b86378 --- /dev/null +++ b/sysdeps/x86/tst-wcsncmp-rtm.c @@ -0,0 +1,21 @@ +/* Test case for wcsncmp inside a transactionally executing RTM region. + Copyright (C) 2022 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/>. */ + +#define WIDE 1 +#include <wchar.h> +#include "tst-strncmp-rtm.c" |