1/* Copyright (C) 1997-2022 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3
4   The GNU C Library is free software; you can redistribute it and/or
5   modify it under the terms of the GNU Lesser General Public
6   License as published by the Free Software Foundation; either
7   version 2.1 of the License, or (at your option) any later version.
8
9   The GNU C Library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, see
16   <https://www.gnu.org/licenses/>.  */
17
18/* __sigsetjmp is implemented in terms of the getcontext trap on
19   Linux/Sparc64.  */
20
21#include <sysdep.h>
22
23/* Offsets into the jmp_buf structure.  */
24
25#define O_mask_was_saved	512
26#define O_gregs			32
27#define O_g1			(O_gregs + 4*8)
28
29/* int _setjmp(jmp_buf) */
30
31ENTRY(_setjmp)
32	ba	__sigsetjmp_local
33	 set	0, %o1
34END(_setjmp)
35libc_hidden_def (_setjmp)
36
37/* int setjmp(jmp_buf) */
38
39ENTRY(setjmp)
40	ba,pt	%xcc, __sigsetjmp_local
41	 set	1, %o1
42END(setjmp)
43
44/* int __sigsetjmp(jmp_buf, savemask)  */
45
46ENTRY(__sigsetjmp)
47__sigsetjmp_local:
48
49	/* Record whether the user is intending to save the sigmask.  */
50	st	%o1, [%o0 + O_mask_was_saved]
51
52	/* Load up our return value, as longjmp is going to override
53	   the jmp_buf on its way back.  */
54	mov	%g0, %g1
55
56	/* And call getcontext!  */
57	ta	0x6e
58
59	retl
60	 mov	%g1, %o0
61
62END(__sigsetjmp)
63hidden_def (__sigsetjmp)
64
65weak_extern(_setjmp)
66weak_extern(setjmp)
67