1/* setjmp and longjmp
2
3   Copyright (c) 2011, Adapteva, Inc.
4   All rights reserved.
5
6   Redistribution and use in source and binary forms, with or without
7   modification, are permitted provided that the following conditions are met:
8    * Redistributions of source code must retain the above copyright notice,
9      this list of conditions and the following disclaimer.
10    * Redistributions in binary form must reproduce the above copyright
11      notice, this list of conditions and the following disclaimer in the
12      documentation and/or other materials provided with the distribution.
13    * Neither the name of Adapteva nor the names of its contributors may be
14      used to endorse or promote products derived from this software without
15      specific prior written permission.
16
17   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
21   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27   POSSIBILITY OF SUCH DAMAGE.                                               */
28
29#include <picolibc.h>
30
31	.file "setjmp.S"
32        .section .text
33        .align 4
34	.global  _setjmp
35        .type _setjmp, %function
36_setjmp:
37	strd lr,[r0]
38	strd r4,[r0,1]
39	strd r6,[r0,2]
40	strd r8,[r0,3]
41	strd r10,[r0,4]
42	strd r32,[r0,5]
43	strd r34,[r0,6]
44	strd r36,[r0,7]
45	strd r38,[r0,8]
46	str sp,[r0,18]
47	mov r0,#0
48	rts
49	.size _setjmp, .-_setjmp
50	.global setjmp
51	.set setjmp, _setjmp
52
53	.global _longjmp
54_longjmp:
55	ldrd lr,[r0] ; return address / r15
56	ldrd r4,[r0,1]
57	ldrd r6,[r0,2]
58	ldrd r8,[r0,3]
59	ldrd r10,[r0,4]
60	ldrd r32,[r0,5]
61	ldrd r34,[r0,6]
62	ldrd r36,[r0,7]
63	ldrd r38,[r0,8]
64	ldr sp,[r0,18]
65	sub r1,r1,0
66	mov r0,#1
67	movne r0,r1
68	jr lr
69        .size   _longjmp, .-_longjmp
70	.global longjmp
71	.set longjmp, _longjmp
72