1/*-
2 * Copyright 2004-2014 Olivier Houchard <cognet@FreeBSD.org>
3 * Copyright 2012-2014 Ian Lepore <ian@FreeBSD.org>
4 * Copyright 2013-2014 Andrew Turner <andrew@FreeBSD.org>
5 * Copyright 2014 Svatopluk Kraus <onwahe@gmail.com>
6 * Copyright 2014 Michal Meloun <meloun@miracle.cz>
7 * All rights reserved.
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
32#if defined(__arm__) && !defined(__aarch64__)
33
34#if defined(__thumb2__)
35#define	_FUNC_MODE	.code 16; .thumb_func
36#else
37#define	_FUNC_MODE	.code 32
38#endif
39
40#define	ENTRY(x) \
41	.text; \
42	.syntax unified; \
43	.balign 2; \
44	.global x; \
45	.type x,#function; \
46	_FUNC_MODE; \
47x:
48
49#define	END(x) \
50	.size x, . - x;
51
52#define	RET	bx	lr
53
54
55/*
56 * setjump + longjmp
57 */
58ENTRY(setjmp)
59#if defined(__thumb2__)
60	mov	ip, sp
61	stmia	r0, {r4-r12,r14}
62#else
63	stmia	r0, {r4-r14}
64#endif
65	mov	r0, #0x00000000
66	RET
67END(setjmp)
68
69ENTRY(longjmp)
70#if defined(__thumb2__)
71	ldmia	r0, {r4-r12,r14}
72	mov	sp, ip
73#else
74	ldmia	r0, {r4-r14}
75#endif
76	mov	r0, #0x00000001
77	RET
78END(longjmp)
79
80#ifdef __ELF__
81.section .note.GNU-stack,"",%progbits
82#endif
83
84#endif
85