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04277e02 | 1 | /* Copyright (C) 1997-2019 Free Software Foundation, Inc. |
7756ba9d DH |
2 | |
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 License as | |
7 | published by the Free Software Foundation; either version 2.1 of the | |
8 | 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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
7756ba9d DH |
18 | |
19 | #include <sysdep.h> | |
20 | ||
21 | /* This source produces 3 functions: | |
22 | __sigsetjmp (jmpbuf,savemask) | |
23 | setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 1) | |
24 | _setjmp (jmpbuf) - equivalent to __sigsetjump (jmpbuf, 0) | |
25 | */ | |
26 | ||
27 | #ifndef setjmp_name | |
28 | # define setjmp_name __sigsetjmp | |
29 | # define SET_MASK_ARG | |
30 | #else | |
31 | # define SET_MASK_ARG addik r6,r0,SAVEMASK | |
32 | #endif | |
33 | ||
34 | ENTRY (setjmp_name) | |
35 | swi r1,r5,0 | |
36 | swi r2,r5,4 | |
37 | swi r13,r5,8 | |
38 | swi r14,r5,12 | |
39 | swi r15,r5,16 | |
40 | swi r16,r5,20 | |
41 | swi r17,r5,24 | |
42 | swi r18,r5,28 | |
43 | swi r19,r5,32 | |
44 | swi r20,r5,36 | |
45 | swi r21,r5,40 | |
46 | swi r22,r5,44 | |
47 | swi r23,r5,48 | |
48 | swi r24,r5,52 | |
49 | swi r25,r5,56 | |
50 | swi r26,r5,60 | |
51 | swi r27,r5,64 | |
52 | swi r28,r5,68 | |
53 | swi r29,r5,72 | |
54 | swi r30,r5,76 | |
55 | swi r31,r5,80 | |
56 | ||
57 | SET_MASK_ARG | |
58 | ||
59 | /* Make a tail call to __sigjmp_save; it takes the same args. */ | |
60 | #ifdef PIC | |
61 | /* We cannot use the PLT, because it requires that r20 be set, but | |
62 | we can't save and restore our caller's value. Instead, we do an | |
63 | indirect jump through the GOT, using the temporary register | |
64 | %ecx, which is call-clobbered. */ | |
65 | mfs r12,rpc | |
66 | addik r12,r12,_GLOBAL_OFFSET_TABLE_+8 | |
67 | lwi r12,r12,__sigjmp_save@GOT | |
68 | brad r12 | |
69 | #else | |
70 | brid __sigjmp_save | |
71 | #endif | |
72 | nop | |
73 | END (setjmp_name) | |
74 | ||
75 | libc_hidden_def (setjmp_name) |