1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/* longjmp for PowerPC.
Copyright (C) 1995-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <pointer_guard.h>
#include <stap-probe.h>
#define _ASM
#ifdef __NO_VMX__
# include <novmxsetjmp.h>
#else
# include <jmpbuf-offsets.h>
#endif
ENTRY (__longjmp_symbol)
#if defined PTR_DEMANGLE || defined CHECK_SP
lwz r24,(JB_GPR1*4)(r3)
# ifdef CHECK_SP
# ifdef PTR_DEMANGLE
PTR_DEMANGLE3 (r24, r24, r25)
# endif
CHECK_SP (r24)
mr r1,r24
# endif
#else
lwz r1,(JB_GPR1*4)(r3)
#endif
lwz r0,(JB_LR*4)(r3)
lwz r14,((JB_GPRS+14-14)*4)(r3)
lwz r15,((JB_GPRS+15-14)*4)(r3)
lwz r16,((JB_GPRS+16-14)*4)(r3)
lwz r17,((JB_GPRS+17-14)*4)(r3)
lwz r18,((JB_GPRS+18-14)*4)(r3)
lwz r19,((JB_GPRS+19-14)*4)(r3)
lwz r20,((JB_GPRS+20-14)*4)(r3)
#ifdef PTR_DEMANGLE
# ifndef CHECK_SP
PTR_DEMANGLE3 (r1, r24, r25)
# endif
PTR_DEMANGLE2 (r0, r25)
#endif
/* longjmp/longjmp_target probe expects longjmp first argument (4@3),
second argument (-4@4), and target address (4@0), respectively. */
LIBC_PROBE (longjmp, 3, 4@3, -4@4, 4@0)
mtlr r0
lwz r21,((JB_GPRS+21-14)*4)(r3)
lwz r22,((JB_GPRS+22-14)*4)(r3)
lwz r5,(JB_CR*4)(r3)
lwz r23,((JB_GPRS+23-14)*4)(r3)
lwz r24,((JB_GPRS+24-14)*4)(r3)
lwz r25,((JB_GPRS+25-14)*4)(r3)
mtcrf 0xFF,r5
lwz r26,((JB_GPRS+26-14)*4)(r3)
lwz r27,((JB_GPRS+27-14)*4)(r3)
lwz r28,((JB_GPRS+28-14)*4)(r3)
lwz r29,((JB_GPRS+29-14)*4)(r3)
lwz r30,((JB_GPRS+30-14)*4)(r3)
lwz r31,((JB_GPRS+31-14)*4)(r3)
LIBC_PROBE (longjmp_target, 3, 4@3, -4@4, 4@0)
mr r3,r4
blr
END (__longjmp_symbol)
|
