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 | |
23 | ENTRY(__getcontext) |
24 | |
25 | ldx [%o0 + UC_LINK], %o1 /* Preserve uc_link field, the |
26 | trap clears it. */ |
27 | ta 0x6e |
28 | 1: |
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 |
57 | 2: |
58 | retl |
59 | clr %o0 |
60 | |
61 | END(__getcontext) |
62 | |
63 | weak_alias (__getcontext, getcontext) |
64 | |