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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/* Copyright (C) 2012-2018 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 "server.h"
#include "tdesc.h"
#include "regdef.h"
#ifndef IN_PROCESS_AGENT
target_desc::~target_desc ()
{
xfree ((char *) arch);
xfree ((char *) osabi);
}
bool target_desc::operator== (const target_desc &other) const
{
if (reg_defs != other.reg_defs)
return false;
/* Compare expedite_regs. */
int i = 0;
for (; expedite_regs[i] != NULL; i++)
{
if (strcmp (expedite_regs[i], other.expedite_regs[i]) != 0)
return false;
}
if (other.expedite_regs[i] != NULL)
return false;
return true;
}
#endif
void target_desc::accept (tdesc_element_visitor &v) const
{
#ifndef IN_PROCESS_AGENT
v.visit_pre (this);
for (const tdesc_feature_up &feature : features)
feature->accept (v);
v.visit_post (this);
#endif
}
void
init_target_desc (struct target_desc *tdesc,
const char **expedite_regs)
{
int offset = 0;
/* Go through all the features and populate reg_defs. */
for (const tdesc_feature_up &feature : tdesc->features)
for (const tdesc_reg_up &treg : feature->registers)
{
int regnum = treg->target_regnum;
/* Register number will increase (possibly with gaps) or be zero. */
gdb_assert (regnum == 0 || regnum >= tdesc->reg_defs.size ());
if (regnum != 0)
tdesc->reg_defs.resize (regnum, reg (offset));
tdesc->reg_defs.emplace_back (treg->name.c_str (), offset,
treg->bitsize);
offset += treg->bitsize;
}
tdesc->registers_size = offset / 8;
/* Make sure PBUFSIZ is large enough to hold a full register
packet. */
gdb_assert (2 * tdesc->registers_size + 32 <= PBUFSIZ);
#ifndef IN_PROCESS_AGENT
tdesc->expedite_regs = expedite_regs;
#endif
}
struct target_desc *
allocate_target_description (void)
{
return new target_desc ();
}
#ifndef IN_PROCESS_AGENT
static const struct target_desc default_description {};
void
copy_target_description (struct target_desc *dest,
const struct target_desc *src)
{
dest->reg_defs = src->reg_defs;
dest->expedite_regs = src->expedite_regs;
dest->registers_size = src->registers_size;
dest->xmltarget = src->xmltarget;
}
const struct target_desc *
current_target_desc (void)
{
if (current_thread == NULL)
return &default_description;
return current_process ()->tdesc;
}
/* See common/tdesc.h. */
const char *
tdesc_architecture_name (const struct target_desc *target_desc)
{
return target_desc->arch;
}
/* See common/tdesc.h. */
void
set_tdesc_architecture (struct target_desc *target_desc,
const char *name)
{
target_desc->arch = xstrdup (name);
}
/* See common/tdesc.h. */
const char *
tdesc_osabi_name (const struct target_desc *target_desc)
{
return target_desc->osabi;
}
/* See common/tdesc.h. */
void
set_tdesc_osabi (struct target_desc *target_desc, const char *name)
{
target_desc->osabi = xstrdup (name);
}
/* See common/tdesc.h. */
const char *
tdesc_get_features_xml (const target_desc *tdesc)
{
/* Either .xmltarget or .features is not NULL. */
gdb_assert (tdesc->xmltarget != NULL
|| (!tdesc->features.empty ()
&& tdesc->arch != NULL));
if (tdesc->xmltarget == NULL)
{
std::string buffer ("@");
print_xml_feature v (&buffer);
tdesc->accept (v);
tdesc->xmltarget = xstrdup (buffer.c_str ());
}
return tdesc->xmltarget;
}
#endif
/* See common/tdesc.h. */
struct tdesc_feature *
tdesc_create_feature (struct target_desc *tdesc, const char *name)
{
struct tdesc_feature *new_feature = new tdesc_feature (name);
tdesc->features.emplace_back (new_feature);
return new_feature;
}
|
