1/* setjmp for Nios II.
2   Copyright (C) 1991-2022 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
5   The GNU C Library is free software; you can redistribute it and/or
6   modify it under the terms of the GNU Lesser General Public
7   License as published by the Free Software Foundation; either
8   version 2.1 of the License, or (at your option) any later version.
9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library.  If not, see
17   <https://www.gnu.org/licenses/>.  */
18
19#include <sysdep.h>
20#include <jmpbuf-offsets.h>
21
22	.text
23ENTRY(setjmp)
24	movi	r5, 1
25	br	__sigsetjmp
26END(setjmp)
27
28ENTRY(_setjmp)
29	mov	r5, zero
30	br	__sigsetjmp
31END(_setjmp)
32libc_hidden_def (_setjmp)
33
34/* Save the current program position in ENV and return 0.  */
35ENTRY(__sigsetjmp)
36#ifdef	PTR_MANGLE
37	PTR_MANGLE_GUARD (r9)
38#endif
39	stw	r16, (JB_R16*4)(r4)
40	stw	r17, (JB_R17*4)(r4)
41	stw	r18, (JB_R18*4)(r4)
42	stw	r19, (JB_R19*4)(r4)
43	stw	r20, (JB_R20*4)(r4)
44	stw	r21, (JB_R21*4)(r4)
45	stw	r22, (JB_R22*4)(r4)
46	stw	fp,  (JB_FP*4)(r4)
47#ifdef	PTR_MANGLE
48	PTR_MANGLE (r6, ra, r9)
49	PTR_MANGLE (r7, sp, r9)
50	stw	r6,  (JB_RA*4)(r4)
51	stw	r7,  (JB_SP*4)(r4)
52#else
53	stw	ra,  (JB_RA*4)(r4)
54	stw	sp,  (JB_SP*4)(r4)
55#endif
56#if IS_IN (rtld)
57	/* In ld.so we never save the signal mask.  */
58	mov r2, zero
59	ret
60#else
61	/* Save the signal mask if requested.  */
62#if defined(__PIC__) || defined(PIC)
63        nextpc r2
641:	movhi r3, %hiadj(__sigjmp_save - 1b)
65	addi r3, r3, %lo(__sigjmp_save - 1b)
66	add r2, r2, r3
67	jmp r2
68#else
69	jmpi __sigjmp_save
70#endif
71#endif
72END (__sigsetjmp)
73libc_hidden_def (__sigsetjmp)
74