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#include <sysdep.h>
19#include "ucontext_i.h"
20
21/* int getcontext(ucontext_t *); */
22
23ENTRY(__getcontext)
24
25	ldx	[%o0 + UC_LINK], %o1	/* Preserve uc_link field, the
26					   trap clears it.  */
27	ta	0x6e
281:
29	ldx	[%o0 + UC_M_PC], %o2
30	ldx	[%o0 + UC_M_NPC], %o3
31	ldx	[%o0 + __UC_SIGMASK], %o4
32	stx	%o1, [%o0 + UC_LINK]
33	add	%o2, 2f - 1b, %o2
34	stx	%o2, [%o0 + UC_M_PC]
35	add	%o3, 2f - 1b, %o3
36	stx	%o3, [%o0 + UC_M_NPC]
37#if SIGMASK_WORDS == 16
38	stx	%o4, [%o0 + UC_SIGMASK]
39	stx	%g0, [%o0 + UC_SIGMASK + 8]
40	stx	%g0, [%o0 + UC_SIGMASK + 16]
41	stx	%g0, [%o0 + UC_SIGMASK + 24]
42	stx	%g0, [%o0 + UC_SIGMASK + 32]
43	stx	%g0, [%o0 + UC_SIGMASK + 40]
44	stx	%g0, [%o0 + UC_SIGMASK + 48]
45	stx	%g0, [%o0 + UC_SIGMASK + 56]
46	stx	%g0, [%o0 + UC_SIGMASK + 64]
47	stx	%g0, [%o0 + UC_SIGMASK + 72]
48	stx	%g0, [%o0 + UC_SIGMASK + 80]
49	stx	%g0, [%o0 + UC_SIGMASK + 88]
50	stx	%g0, [%o0 + UC_SIGMASK + 96]
51	stx	%g0, [%o0 + UC_SIGMASK + 104]
52	stx	%g0, [%o0 + UC_SIGMASK + 112]
53	stx	%g0, [%o0 + UC_SIGMASK + 120]
54#else
55# error Adjust __getcontext
56#endif
572:
58	retl
59	 clr	%o0
60
61END(__getcontext)
62
63weak_alias (__getcontext, getcontext)
64