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
78
79
80
81
82
|
/* longjmp for PowerPC.
Copyright (C) 1995-2014 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
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <stap-probe.h>
#define _ASM
#ifdef __NO_VMX__
# include <novmxsetjmp.h>
#else
# include <jmpbuf-offsets.h>
#endif
#if defined __SPE__ || (defined __NO_FPRS__ && !defined _SOFT_FLOAT)
# define LOAD_GP(N) evldd r##N,((JB_FPRS+((N)-14)*2)*4)(r3)
#else
# define LOAD_GP(N) lwz r##N,((JB_GPRS+(N)-14)*4)(r3)
#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)
LOAD_GP (14)
LOAD_GP (15)
LOAD_GP (16)
LOAD_GP (17)
LOAD_GP (18)
LOAD_GP (19)
LOAD_GP (20)
#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
LOAD_GP (21)
LOAD_GP (22)
lwz r5,(JB_CR*4)(r3)
LOAD_GP (23)
LOAD_GP (24)
LOAD_GP (25)
mtcrf 0xFF,r5
LOAD_GP (26)
LOAD_GP (27)
LOAD_GP (28)
LOAD_GP (29)
LOAD_GP (30)
LOAD_GP (31)
LIBC_PROBE (longjmp_target, 3, 4@3, -4@4, 4@0)
mr r3,r4
blr
END (__longjmp_symbol)
|
