xref: /freebsd/lib/csu/common/feature_note.S (revision 4543ef516683042d46f3bd3bb8a4f3f746e00499)
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright 2000 David E. O'Brien, John D. Polstra.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <machine/asm.h>
29#include <sys/elf_common.h>
30#include "notes.h"
31
32	.section .note.tag,"a",%note
33	.p2align	2
34	.4byte		2f-1f
35	.4byte		4f-3f
36	.4byte		NT_FREEBSD_FEATURE_CTL
371:	.asciz		NOTE_FREEBSD_VENDOR
382:	.p2align	2
393:	.4byte		0
404:
41
42	.section .note.GNU-stack,"",%progbits
43
44#ifdef __aarch64__
45/* This is needed in all objects for BTI to be used in the linked elf file */
46GNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL)
47#endif
48