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
146
147
148
149
150
151
152
153
154
155
156
157
|
/* Copyright (C) 2020-2024 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 3 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, see <http://www.gnu.org/licenses/>. */
#include <sys/types.h>
#include <sys/ptrace.h>
#include <limits.h>
#include "server.h"
#include "netbsd-low.h"
#include "gdbsupport/x86-xstate.h"
#include "arch/i386.h"
#include "x86-tdesc.h"
#include "tdesc.h"
/* The index of various registers inside the regcache. */
enum netbsd_i386_gdb_regnum
{
I386_EAX_REGNUM, /* %eax */
I386_ECX_REGNUM, /* %ecx */
I386_EDX_REGNUM, /* %edx */
I386_EBX_REGNUM, /* %ebx */
I386_ESP_REGNUM, /* %esp */
I386_EBP_REGNUM, /* %ebp */
I386_ESI_REGNUM, /* %esi */
I386_EDI_REGNUM, /* %edi */
I386_EIP_REGNUM, /* %eip */
I386_EFLAGS_REGNUM, /* %eflags */
I386_CS_REGNUM, /* %cs */
I386_SS_REGNUM, /* %ss */
I386_DS_REGNUM, /* %ds */
I386_ES_REGNUM, /* %es */
I386_FS_REGNUM, /* %fs */
I386_GS_REGNUM, /* %gs */
I386_ST0_REGNUM /* %st(0) */
};
/* The fill_function for the general-purpose register set. */
static void
netbsd_i386_fill_gregset (struct regcache *regcache, char *buf)
{
struct reg *r = (struct reg *) buf;
#define netbsd_i386_collect_gp(regnum, fld) do { \
collect_register (regcache, regnum, &r->r_##fld); \
} while (0)
netbsd_i386_collect_gp (I386_EAX_REGNUM, eax);
netbsd_i386_collect_gp (I386_EBX_REGNUM, ebx);
netbsd_i386_collect_gp (I386_ECX_REGNUM, ecx);
netbsd_i386_collect_gp (I386_EDX_REGNUM, edx);
netbsd_i386_collect_gp (I386_ESP_REGNUM, esp);
netbsd_i386_collect_gp (I386_EBP_REGNUM, ebp);
netbsd_i386_collect_gp (I386_ESI_REGNUM, esi);
netbsd_i386_collect_gp (I386_EDI_REGNUM, edi);
netbsd_i386_collect_gp (I386_EIP_REGNUM, eip);
netbsd_i386_collect_gp (I386_EFLAGS_REGNUM, eflags);
netbsd_i386_collect_gp (I386_CS_REGNUM, cs);
netbsd_i386_collect_gp (I386_SS_REGNUM, ss);
netbsd_i386_collect_gp (I386_DS_REGNUM, ds);
netbsd_i386_collect_gp (I386_ES_REGNUM, es);
netbsd_i386_collect_gp (I386_FS_REGNUM, fs);
netbsd_i386_collect_gp (I386_GS_REGNUM, gs);
}
/* The store_function for the general-purpose register set. */
static void
netbsd_i386_store_gregset (struct regcache *regcache, const char *buf)
{
struct reg *r = (struct reg *) buf;
#define netbsd_i386_supply_gp(regnum, fld) do { \
supply_register (regcache, regnum, &r->r_##fld); \
} while(0)
netbsd_i386_supply_gp (I386_EAX_REGNUM, eax);
netbsd_i386_supply_gp (I386_EBX_REGNUM, ebx);
netbsd_i386_supply_gp (I386_ECX_REGNUM, ecx);
netbsd_i386_supply_gp (I386_EDX_REGNUM, edx);
netbsd_i386_supply_gp (I386_ESP_REGNUM, esp);
netbsd_i386_supply_gp (I386_EBP_REGNUM, ebp);
netbsd_i386_supply_gp (I386_ESI_REGNUM, esi);
netbsd_i386_supply_gp (I386_EDI_REGNUM, edi);
netbsd_i386_supply_gp (I386_EIP_REGNUM, eip);
netbsd_i386_supply_gp (I386_EFLAGS_REGNUM, eflags);
netbsd_i386_supply_gp (I386_CS_REGNUM, cs);
netbsd_i386_supply_gp (I386_SS_REGNUM, ss);
netbsd_i386_supply_gp (I386_DS_REGNUM, ds);
netbsd_i386_supply_gp (I386_ES_REGNUM, es);
netbsd_i386_supply_gp (I386_FS_REGNUM, fs);
netbsd_i386_supply_gp (I386_GS_REGNUM, gs);
}
/* Description of all the x86-netbsd register sets. */
static const struct netbsd_regset_info netbsd_target_regsets[] =
{
/* General Purpose Registers. */
{PT_GETREGS, PT_SETREGS, sizeof (struct reg),
netbsd_i386_fill_gregset, netbsd_i386_store_gregset},
/* End of list marker. */
{0, 0, -1, NULL, NULL }
};
/* NetBSD target op definitions for the amd64 architecture. */
class netbsd_i386_target : public netbsd_process_target
{
public:
const netbsd_regset_info *get_regs_info () override;
void low_arch_setup () override;
};
const netbsd_regset_info *
netbsd_i386_target::get_regs_info ()
{
return netbsd_target_regsets;
}
/* Initialize the target description for the architecture of the
inferior. */
void
netbsd_i386_target::low_arch_setup ()
{
target_desc *tdesc
= i386_create_target_description (X86_XSTATE_SSE_MASK, false, false);
init_target_desc (tdesc, i386_expedite_regs);
current_process ()->tdesc = tdesc;
}
/* The singleton target ops object. */
static netbsd_i386_target the_netbsd_i386_target;
/* The NetBSD target ops object. */
netbsd_process_target *the_netbsd_target = &the_netbsd_i386_target;
|
