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4dbd216d | 1 | /* Save current context and install the given one. |
f7a9f785 | 2 | Copyright (C) 2004-2016 Free Software Foundation, Inc. |
4dbd216d RH |
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 | |
ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
4dbd216d RH |
18 | |
19 | #include <sysdep.h> | |
20 | #include <ucontext-offsets.h> | |
21 | ||
22 | ENTRY(__swapcontext) | |
23 | ||
24 | #ifdef PROF | |
25 | ldgp $29, 0($27) | |
26 | .set noat | |
27 | lda AT, _mcount | |
28 | jsr AT, (AT), _mcount | |
29 | .set at | |
30 | .prologue 1 | |
31 | #elif defined PIC | |
32 | .prologue 0 | |
33 | #else | |
34 | ldgp $29, 0($27) | |
35 | .prologue 1 | |
36 | #endif | |
37 | ||
38 | #ifdef PIC | |
39 | unop | |
40 | bsr $0, __getcontext_x !samegp | |
41 | mov $17, $16 | |
42 | br $31, __setcontext !samegp | |
43 | #else | |
44 | jsr $0, __getcontext_x | |
45 | mov $17, $16 | |
46 | jmp $31, __setcontext | |
47 | #endif | |
48 | ||
49 | END(__swapcontext) | |
8796ce21 | 50 | weak_alias (__swapcontext, swapcontext) |