mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
f2b65a4471
CET feature bits in TCB, which are Linux specific, are used to check if CET features are active. Move CET feature check to Linux/x86 directory. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/* Get CPUID feature leaf.
|
|
Copyright (C) 2021-2024 Free Software Foundation, Inc.
|
|
|
|
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 <assert.h>
|
|
#include <tcb-offsets.h>
|
|
#include <ldsodefs.h>
|
|
|
|
const struct cpuid_feature *
|
|
__x86_get_cpuid_feature_leaf (unsigned int leaf)
|
|
{
|
|
static const struct cpuid_feature feature = {};
|
|
if (leaf < CPUID_INDEX_MAX)
|
|
return ((const struct cpuid_feature *)
|
|
&GLRO(dl_x86_cpu_features).features[leaf]);
|
|
else
|
|
return &feature;
|
|
}
|