xref: /freebsd/sys/tools/vdso_wrap.S (revision d4eeb02986980bf33dd56c41ceb9fc5f180c0d47)
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2021 The FreeBSD Foundation
5 *
6 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
7 * under sponsorship from the FreeBSD Foundation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32
33#define	VDSO_BLOB_START(S)	__CONCAT(_binary_, __CONCAT(S, _start))
34#define	VDSO_BLOB_END(S)	__CONCAT(_binary_, __CONCAT(S, _end))
35#define	VDSO_BLOB_SIZE(S)	__CONCAT(_binary_, __CONCAT(S, _size))
36
37	.section .rodata, "a", %progbits
38	.globl	VDSO_BLOB_START(VDSO_NAME)
39	.type	VDSO_BLOB_START(VDSO_NAME), %object
40	.size	VDSO_BLOB_START(VDSO_NAME), 0
41VDSO_BLOB_START(VDSO_NAME):
42	.incbin	__XSTRING(VDSO_FILE)
43	.globl	VDSO_BLOB_END(VDSO_NAME)
44	.type	VDSO_BLOB_END(VDSO_NAME), %object
45	.size	VDSO_BLOB_END(VDSO_NAME), 0
46VDSO_BLOB_END(VDSO_NAME):
47	.globl	VDSO_BLOB_SIZE(VDSO_NAME)
48	.set	VDSO_BLOB_SIZE(VDSO_NAME), . - VDSO_BLOB_START(VDSO_NAME)
49