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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Test CET property note parser.
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Copyright (C) 2018-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <elf.h>
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#include <tcb-offsets.h>
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/* This test prints out "IBT" if Intel indirect branch tracking (IBT)
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is enabled at run-time, which is checked by tst-cet-property-2 to
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verify that the IBT violation is caught on IBT machines. */
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static int
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do_test (void)
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{
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unsigned int feature_1;
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#ifdef __x86_64__
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# define SEG_REG "fs"
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#else
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# define SEG_REG "gs"
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#endif
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asm ("movl %%" SEG_REG ":%P1, %0"
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: "=r" (feature_1) : "i" (FEATURE_1_OFFSET));
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if ((feature_1 & GNU_PROPERTY_X86_FEATURE_1_IBT) != 0)
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printf ("IBT\n");
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return 0;
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}
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#include <support/test-driver.c>
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