blob: 0f3bd9ff4acda3ac7a84107b86cad040f8b700d9 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/* Test CET property note parser.
Copyright (C) 2018-2019 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
<http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <elf.h>
#include <tcb-offsets.h>
/* This test prints out "IBT" if Intel indirect branch tracking (IBT)
is enabled at run-time, which is checked by tst-cet-property-2 to
verify that the IBT violation is caught on IBT machines. */
static int
do_test (void)
{
unsigned int feature_1;
#ifdef __x86_64__
# define SEG_REG "fs"
#else
# define SEG_REG "gs"
#endif
asm ("movl %%" SEG_REG ":%P1, %0"
: "=r" (feature_1) : "i" (FEATURE_1_OFFSET));
if ((feature_1 & GNU_PROPERTY_X86_FEATURE_1_IBT) != 0)
printf ("IBT\n");
return 0;
}
#include <support/test-driver.c>
|
