1 | /* setjmp for PowerPC. |
2 | Copyright (C) 1995-2024 Free Software Foundation, Inc. |
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 |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <sysdep.h> |
20 | #include <pointer_guard.h> |
21 | #include <stap-probe.h> |
22 | #define _ASM |
23 | #ifdef __NO_VMX__ |
24 | # include <novmxsetjmp.h> |
25 | #else |
26 | # include <jmpbuf-offsets.h> |
27 | #endif |
28 | |
29 | ENTRY (__sigsetjmp_symbol) |
30 | |
31 | #ifdef PTR_MANGLE |
32 | mr r5,r1 |
33 | PTR_MANGLE(r5, r10) |
34 | stw r5,(JB_GPR1*4)(3) |
35 | #else |
36 | stw r1,(JB_GPR1*4)(3) |
37 | #endif |
38 | mflr r0 |
39 | /* setjmp probe expects longjmp first argument (4@3), second argument |
40 | (-4@4), and target address (4@0), respectively. */ |
41 | LIBC_PROBE (setjmp, 3, 4@3, -4@4, 4@0) |
42 | stw r14,((JB_GPRS+14-14)*4)(3) |
43 | #ifdef PTR_MANGLE |
44 | PTR_MANGLE2 (r0, r10) |
45 | li r10,0 |
46 | #endif |
47 | stw r0,(JB_LR*4)(3) |
48 | stw r15,((JB_GPRS+15-14)*4)(3) |
49 | mfcr r0 |
50 | stw r16,((JB_GPRS+16-14)*4)(3) |
51 | stw r0,(JB_CR*4)(3) |
52 | stw r17,((JB_GPRS+17-14)*4)(3) |
53 | stw r18,((JB_GPRS+18-14)*4)(3) |
54 | stw r19,((JB_GPRS+19-14)*4)(3) |
55 | stw r20,((JB_GPRS+20-14)*4)(3) |
56 | stw r21,((JB_GPRS+21-14)*4)(3) |
57 | stw r22,((JB_GPRS+22-14)*4)(3) |
58 | stw r23,((JB_GPRS+23-14)*4)(3) |
59 | stw r24,((JB_GPRS+24-14)*4)(3) |
60 | stw r25,((JB_GPRS+25-14)*4)(3) |
61 | stw r26,((JB_GPRS+26-14)*4)(3) |
62 | stw r27,((JB_GPRS+27-14)*4)(3) |
63 | stw r28,((JB_GPRS+28-14)*4)(3) |
64 | stw r29,((JB_GPRS+29-14)*4)(3) |
65 | stw r30,((JB_GPRS+30-14)*4)(3) |
66 | stw r31,((JB_GPRS+31-14)*4)(3) |
67 | #if IS_IN (rtld) |
68 | li r3,0 |
69 | blr |
70 | #else |
71 | b __sigjmp_save_symbol@local |
72 | #endif |
73 | END (__sigsetjmp_symbol) |
74 | |