Commit | Line | Data |
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b811d2c2 | 1 | /* Copyright (C) 2012-2020 Free Software Foundation, Inc. |
3aee8918 PA |
2 | |
3 | This file is part of GDB. | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #include "server.h" | |
19 | #include "tdesc.h" | |
20 | #include "regdef.h" | |
21 | ||
d80e5242 AH |
22 | #ifndef IN_PROCESS_AGENT |
23 | ||
24 | target_desc::~target_desc () | |
25 | { | |
d80e5242 AH |
26 | xfree ((char *) arch); |
27 | xfree ((char *) osabi); | |
d80e5242 AH |
28 | } |
29 | ||
30 | bool target_desc::operator== (const target_desc &other) const | |
31 | { | |
5cd3e386 | 32 | if (reg_defs != other.reg_defs) |
d80e5242 AH |
33 | return false; |
34 | ||
d80e5242 AH |
35 | /* Compare expedite_regs. */ |
36 | int i = 0; | |
37 | for (; expedite_regs[i] != NULL; i++) | |
38 | { | |
39 | if (strcmp (expedite_regs[i], other.expedite_regs[i]) != 0) | |
40 | return false; | |
41 | } | |
42 | if (other.expedite_regs[i] != NULL) | |
43 | return false; | |
44 | ||
45 | return true; | |
46 | } | |
47 | ||
48 | #endif | |
49 | ||
e98577a9 AH |
50 | void target_desc::accept (tdesc_element_visitor &v) const |
51 | { | |
52 | #ifndef IN_PROCESS_AGENT | |
53 | v.visit_pre (this); | |
54 | ||
55 | for (const tdesc_feature_up &feature : features) | |
56 | feature->accept (v); | |
57 | ||
58 | v.visit_post (this); | |
59 | #endif | |
60 | } | |
61 | ||
3aee8918 | 62 | void |
190852c8 JB |
63 | init_target_desc (struct target_desc *tdesc, |
64 | const char **expedite_regs) | |
3aee8918 | 65 | { |
c4dfafab | 66 | int offset = 0; |
3aee8918 | 67 | |
ea3e7d71 | 68 | /* Go through all the features and populate reg_defs. */ |
82ec9bc7 AH |
69 | for (const tdesc_feature_up &feature : tdesc->features) |
70 | for (const tdesc_reg_up &treg : feature->registers) | |
71 | { | |
72 | int regnum = treg->target_regnum; | |
ea3e7d71 | 73 | |
82ec9bc7 AH |
74 | /* Register number will increase (possibly with gaps) or be zero. */ |
75 | gdb_assert (regnum == 0 || regnum >= tdesc->reg_defs.size ()); | |
ea3e7d71 | 76 | |
82ec9bc7 | 77 | if (regnum != 0) |
5a82b8a1 | 78 | tdesc->reg_defs.resize (regnum, gdb::reg (offset)); |
ea3e7d71 | 79 | |
82ec9bc7 AH |
80 | tdesc->reg_defs.emplace_back (treg->name.c_str (), offset, |
81 | treg->bitsize); | |
82 | offset += treg->bitsize; | |
83 | } | |
3aee8918 PA |
84 | |
85 | tdesc->registers_size = offset / 8; | |
86 | ||
87 | /* Make sure PBUFSIZ is large enough to hold a full register | |
88 | packet. */ | |
38e08fca | 89 | gdb_assert (2 * tdesc->registers_size + 32 <= PBUFSIZ); |
190852c8 JB |
90 | |
91 | #ifndef IN_PROCESS_AGENT | |
92 | tdesc->expedite_regs = expedite_regs; | |
93 | #endif | |
3aee8918 PA |
94 | } |
95 | ||
0e267416 AB |
96 | /* See gdbsupport/tdesc.h. */ |
97 | ||
51a948fd | 98 | target_desc_up |
5f035c07 YQ |
99 | allocate_target_description (void) |
100 | { | |
51a948fd | 101 | return target_desc_up (new target_desc ()); |
5f035c07 YQ |
102 | } |
103 | ||
0e267416 AB |
104 | /* See gdbsupport/tdesc.h. */ |
105 | ||
106 | void | |
107 | target_desc_deleter::operator() (struct target_desc *target_desc) const | |
108 | { | |
109 | delete target_desc; | |
110 | } | |
111 | ||
3aee8918 PA |
112 | #ifndef IN_PROCESS_AGENT |
113 | ||
f49ff000 | 114 | static const struct target_desc default_description {}; |
3aee8918 PA |
115 | |
116 | void | |
117 | copy_target_description (struct target_desc *dest, | |
118 | const struct target_desc *src) | |
119 | { | |
120 | dest->reg_defs = src->reg_defs; | |
3aee8918 PA |
121 | dest->expedite_regs = src->expedite_regs; |
122 | dest->registers_size = src->registers_size; | |
123 | dest->xmltarget = src->xmltarget; | |
124 | } | |
125 | ||
126 | const struct target_desc * | |
127 | current_target_desc (void) | |
128 | { | |
0bfdf32f | 129 | if (current_thread == NULL) |
3aee8918 PA |
130 | return &default_description; |
131 | ||
132 | return current_process ()->tdesc; | |
133 | } | |
0abe8a89 | 134 | |
fbf42f4e AB |
135 | /* An empty structure. */ |
136 | ||
137 | struct tdesc_compatible_info { }; | |
138 | ||
139 | /* See gdbsupport/tdesc.h. */ | |
140 | ||
141 | const std::vector<tdesc_compatible_info_up> & | |
142 | tdesc_compatible_info_list (const target_desc *target_desc) | |
143 | { | |
144 | static std::vector<tdesc_compatible_info_up> empty; | |
145 | return empty; | |
146 | } | |
147 | ||
148 | /* See gdbsupport/tdesc.h. */ | |
149 | ||
150 | const char * | |
151 | tdesc_compatible_info_arch_name (const tdesc_compatible_info_up &c_info) | |
152 | { | |
153 | return nullptr; | |
154 | } | |
155 | ||
268a13a5 | 156 | /* See gdbsupport/tdesc.h. */ |
5f035c07 | 157 | |
d278f585 AH |
158 | const char * |
159 | tdesc_architecture_name (const struct target_desc *target_desc) | |
160 | { | |
161 | return target_desc->arch; | |
162 | } | |
163 | ||
268a13a5 | 164 | /* See gdbsupport/tdesc.h. */ |
d278f585 | 165 | |
0abe8a89 YQ |
166 | void |
167 | set_tdesc_architecture (struct target_desc *target_desc, | |
168 | const char *name) | |
169 | { | |
170 | target_desc->arch = xstrdup (name); | |
171 | } | |
172 | ||
268a13a5 | 173 | /* See gdbsupport/tdesc.h. */ |
5f035c07 | 174 | |
d278f585 AH |
175 | const char * |
176 | tdesc_osabi_name (const struct target_desc *target_desc) | |
177 | { | |
178 | return target_desc->osabi; | |
179 | } | |
180 | ||
268a13a5 | 181 | /* See gdbsupport/tdesc.h. */ |
d278f585 | 182 | |
0abe8a89 YQ |
183 | void |
184 | set_tdesc_osabi (struct target_desc *target_desc, const char *name) | |
185 | { | |
186 | target_desc->osabi = xstrdup (name); | |
187 | } | |
188 | ||
268a13a5 | 189 | /* See gdbsupport/tdesc.h. */ |
0abe8a89 YQ |
190 | |
191 | const char * | |
e98577a9 | 192 | tdesc_get_features_xml (const target_desc *tdesc) |
0abe8a89 YQ |
193 | { |
194 | /* Either .xmltarget or .features is not NULL. */ | |
195 | gdb_assert (tdesc->xmltarget != NULL | |
17d08cd4 | 196 | || (!tdesc->features.empty () |
1d0aa65c | 197 | && tdesc->arch != NULL)); |
0abe8a89 YQ |
198 | |
199 | if (tdesc->xmltarget == NULL) | |
200 | { | |
e98577a9 AH |
201 | std::string buffer ("@"); |
202 | print_xml_feature v (&buffer); | |
203 | tdesc->accept (v); | |
0abe8a89 YQ |
204 | tdesc->xmltarget = xstrdup (buffer.c_str ()); |
205 | } | |
206 | ||
207 | return tdesc->xmltarget; | |
208 | } | |
3aee8918 | 209 | #endif |
f49ff000 | 210 | |
268a13a5 | 211 | /* See gdbsupport/tdesc.h. */ |
f49ff000 YQ |
212 | |
213 | struct tdesc_feature * | |
3b74854b | 214 | tdesc_create_feature (struct target_desc *tdesc, const char *name) |
f49ff000 | 215 | { |
3b74854b | 216 | struct tdesc_feature *new_feature = new tdesc_feature (name); |
82ec9bc7 AH |
217 | tdesc->features.emplace_back (new_feature); |
218 | return new_feature; | |
f49ff000 | 219 | } |
6cdd651f LM |
220 | |
221 | /* See gdbsupport/tdesc.h. */ | |
222 | ||
223 | bool | |
224 | tdesc_contains_feature (const target_desc *tdesc, const std::string &feature) | |
225 | { | |
226 | gdb_assert (tdesc != nullptr); | |
227 | ||
228 | for (const tdesc_feature_up &f : tdesc->features) | |
229 | { | |
230 | if (f->name == feature) | |
231 | return true; | |
232 | } | |
233 | ||
234 | return false; | |
235 | } |