67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
|
/*===------ cet.h -Control-flow Enforcement Technology feature ------------===
|
||
|
|
* Add x86 feature with IBT and/or SHSTK bits to ELF program property if they
|
||
|
|
* are enabled. Otherwise, contents in this header file are unused. This file
|
||
|
|
* is mainly design for assembly source code which want to enable CET.
|
||
|
|
*
|
||
|
|
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
* See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
*
|
||
|
|
*===-----------------------------------------------------------------------===
|
||
|
|
*/
|
||
|
|
#ifndef __CET_H
|
||
|
|
#define __CET_H
|
||
|
|
|
||
|
|
#ifdef __ASSEMBLER__
|
||
|
|
|
||
|
|
#ifndef __CET__
|
||
|
|
# define _CET_ENDBR
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __CET__
|
||
|
|
|
||
|
|
# ifdef __LP64__
|
||
|
|
# if __CET__ & 0x1
|
||
|
|
# define _CET_ENDBR endbr64
|
||
|
|
# else
|
||
|
|
# define _CET_ENDBR
|
||
|
|
# endif
|
||
|
|
# else
|
||
|
|
# if __CET__ & 0x1
|
||
|
|
# define _CET_ENDBR endbr32
|
||
|
|
# else
|
||
|
|
# define _CET_ENDBR
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
|
||
|
|
# ifdef __LP64__
|
||
|
|
# define __PROPERTY_ALIGN 3
|
||
|
|
# else
|
||
|
|
# define __PROPERTY_ALIGN 2
|
||
|
|
# endif
|
||
|
|
|
||
|
|
.pushsection ".note.gnu.property", "a"
|
||
|
|
.p2align __PROPERTY_ALIGN
|
||
|
|
.long 1f - 0f /* name length. */
|
||
|
|
.long 4f - 1f /* data length. */
|
||
|
|
/* NT_GNU_PROPERTY_TYPE_0. */
|
||
|
|
.long 5 /* note type. */
|
||
|
|
0:
|
||
|
|
.asciz "GNU" /* vendor name. */
|
||
|
|
1:
|
||
|
|
.p2align __PROPERTY_ALIGN
|
||
|
|
/* GNU_PROPERTY_X86_FEATURE_1_AND. */
|
||
|
|
.long 0xc0000002 /* pr_type. */
|
||
|
|
.long 3f - 2f /* pr_datasz. */
|
||
|
|
2:
|
||
|
|
/* GNU_PROPERTY_X86_FEATURE_1_XXX. */
|
||
|
|
.long __CET__
|
||
|
|
3:
|
||
|
|
.p2align __PROPERTY_ALIGN
|
||
|
|
4:
|
||
|
|
.popsection
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
#endif
|