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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/* Native-dependent code for PowerPC's running NetBSD, for GDB.
Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include <machine/frame.h>
#include "defs.h"
#include "inferior.h"
#include "gdbcore.h"
#include "ppc-tdep.h"
#include "regcache.h"
#define RF(dst, src) \
memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src))
#define RS(src, dst) \
memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst))
void
fetch_inferior_registers (int regno)
{
struct reg inferior_registers;
#ifdef PT_GETFPREGS
struct fpreg inferior_fp_registers;
#endif
int i;
ptrace (PT_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
for (i = 0; i < 32; i++)
RF (i, inferior_registers.fixreg[i]);
RF (PPC_LR_REGNUM, inferior_registers.lr);
RF (PPC_CR_REGNUM, inferior_registers.cr);
RF (PPC_XER_REGNUM, inferior_registers.xer);
RF (PPC_CTR_REGNUM, inferior_registers.ctr);
RF (PC_REGNUM, inferior_registers.pc);
#ifdef PT_GETFPREGS
ptrace (PT_GETFPREGS, inferior_pid,
(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
for (i = 0; i < 32; i++)
RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
#endif
registers_fetched ();
}
void
store_inferior_registers (int regno)
{
struct reg inferior_registers;
#ifdef PT_SETFPREGS
struct fpreg inferior_fp_registers;
#endif
int i;
for (i = 0; i < 32; i++)
RS (i, inferior_registers.fixreg[i]);
RS (PPC_LR_REGNUM, inferior_registers.lr);
RS (PPC_CR_REGNUM, inferior_registers.cr);
RS (PPC_XER_REGNUM, inferior_registers.xer);
RS (PPC_CTR_REGNUM, inferior_registers.ctr);
RS (PC_REGNUM, inferior_registers.pc);
ptrace (PT_SETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
#ifdef PT_SETFPREGS
for (i = 0; i < 32; i++)
RS (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
ptrace (PT_SETFPREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
#endif
}
struct md_core
{
struct reg intreg;
#ifdef PT_GETFPREGS
struct fpreg freg;
#endif
};
void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
CORE_ADDR ignore)
{
struct md_core *core_reg = (struct md_core *) core_reg_sect;
int i;
/* Integer registers */
for (i = 0; i < 32; i++)
RF (i, core_reg->intreg.fixreg[i]);
RF (PPC_LR_REGNUM, core_reg->intreg.lr);
RF (PPC_CR_REGNUM, core_reg->intreg.cr);
RF (PPC_XER_REGNUM, core_reg->intreg.xer);
RF (PPC_CTR_REGNUM, core_reg->intreg.ctr);
RF (PC_REGNUM, core_reg->intreg.pc);
#ifdef PT_FPGETREGS
/* Floating point registers */
for (i = 0; i < 32; i++)
RF (FP0_REGNUM + i, core_reg->freg.r_regs[i]);
#endif
registers_fetched ();
}
/* Register that we are able to handle ppcnbsd core file formats.
FIXME: is this really bfd_target_unknown_flavour? */
static struct core_fns ppcnbsd_core_fns =
{
bfd_target_unknown_flavour, /* core_flavour */
default_check_format, /* check_format */
default_core_sniffer, /* core_sniffer */
fetch_core_registers, /* core_read_registers */
NULL /* next */
};
void
_initialize_ppcnbsd_nat (void)
{
add_core_fns (&ppcnbsd_core_fns);
}
|
