Commit | Line | Data |
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e2882c85 | 1 | /* Copyright (C) 2012-2018 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 | ||
3aee8918 PA |
50 | void |
51 | init_target_desc (struct target_desc *tdesc) | |
52 | { | |
c4dfafab | 53 | int offset = 0; |
3aee8918 | 54 | |
ea3e7d71 | 55 | /* Go through all the features and populate reg_defs. */ |
82ec9bc7 AH |
56 | for (const tdesc_feature_up &feature : tdesc->features) |
57 | for (const tdesc_reg_up &treg : feature->registers) | |
58 | { | |
59 | int regnum = treg->target_regnum; | |
ea3e7d71 | 60 | |
82ec9bc7 AH |
61 | /* Register number will increase (possibly with gaps) or be zero. */ |
62 | gdb_assert (regnum == 0 || regnum >= tdesc->reg_defs.size ()); | |
ea3e7d71 | 63 | |
82ec9bc7 AH |
64 | if (regnum != 0) |
65 | tdesc->reg_defs.resize (regnum, reg (offset)); | |
ea3e7d71 | 66 | |
82ec9bc7 AH |
67 | tdesc->reg_defs.emplace_back (treg->name.c_str (), offset, |
68 | treg->bitsize); | |
69 | offset += treg->bitsize; | |
70 | } | |
3aee8918 PA |
71 | |
72 | tdesc->registers_size = offset / 8; | |
73 | ||
74 | /* Make sure PBUFSIZ is large enough to hold a full register | |
75 | packet. */ | |
38e08fca | 76 | gdb_assert (2 * tdesc->registers_size + 32 <= PBUFSIZ); |
3aee8918 PA |
77 | } |
78 | ||
5f035c07 YQ |
79 | struct target_desc * |
80 | allocate_target_description (void) | |
81 | { | |
82 | return new target_desc (); | |
83 | } | |
84 | ||
3aee8918 PA |
85 | #ifndef IN_PROCESS_AGENT |
86 | ||
f49ff000 | 87 | static const struct target_desc default_description {}; |
3aee8918 PA |
88 | |
89 | void | |
90 | copy_target_description (struct target_desc *dest, | |
91 | const struct target_desc *src) | |
92 | { | |
93 | dest->reg_defs = src->reg_defs; | |
3aee8918 PA |
94 | dest->expedite_regs = src->expedite_regs; |
95 | dest->registers_size = src->registers_size; | |
96 | dest->xmltarget = src->xmltarget; | |
97 | } | |
98 | ||
99 | const struct target_desc * | |
100 | current_target_desc (void) | |
101 | { | |
0bfdf32f | 102 | if (current_thread == NULL) |
3aee8918 PA |
103 | return &default_description; |
104 | ||
105 | return current_process ()->tdesc; | |
106 | } | |
0abe8a89 | 107 | |
f46cd62a | 108 | /* See common/tdesc.h. */ |
5f035c07 | 109 | |
d278f585 AH |
110 | const char * |
111 | tdesc_architecture_name (const struct target_desc *target_desc) | |
112 | { | |
113 | return target_desc->arch; | |
114 | } | |
115 | ||
116 | /* See common/tdesc.h. */ | |
117 | ||
0abe8a89 YQ |
118 | void |
119 | set_tdesc_architecture (struct target_desc *target_desc, | |
120 | const char *name) | |
121 | { | |
122 | target_desc->arch = xstrdup (name); | |
123 | } | |
124 | ||
f46cd62a | 125 | /* See common/tdesc.h. */ |
5f035c07 | 126 | |
d278f585 AH |
127 | const char * |
128 | tdesc_osabi_name (const struct target_desc *target_desc) | |
129 | { | |
130 | return target_desc->osabi; | |
131 | } | |
132 | ||
133 | /* See common/tdesc.h. */ | |
134 | ||
0abe8a89 YQ |
135 | void |
136 | set_tdesc_osabi (struct target_desc *target_desc, const char *name) | |
137 | { | |
138 | target_desc->osabi = xstrdup (name); | |
139 | } | |
140 | ||
141 | /* Return a string which is of XML format, including XML target | |
142 | description to be sent to GDB. */ | |
143 | ||
144 | const char * | |
145 | tdesc_get_features_xml (target_desc *tdesc) | |
146 | { | |
147 | /* Either .xmltarget or .features is not NULL. */ | |
148 | gdb_assert (tdesc->xmltarget != NULL | |
17d08cd4 | 149 | || (!tdesc->features.empty () |
1d0aa65c | 150 | && tdesc->arch != NULL)); |
0abe8a89 YQ |
151 | |
152 | if (tdesc->xmltarget == NULL) | |
153 | { | |
154 | std::string buffer ("@<?xml version=\"1.0\"?>"); | |
155 | ||
156 | buffer += "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">"; | |
157 | buffer += "<target>"; | |
158 | buffer += "<architecture>"; | |
d278f585 | 159 | buffer += tdesc_architecture_name (tdesc); |
0abe8a89 YQ |
160 | buffer += "</architecture>"; |
161 | ||
d278f585 AH |
162 | const char *osabi = tdesc_osabi_name (tdesc); |
163 | if (osabi != nullptr) | |
1d0aa65c AH |
164 | { |
165 | buffer += "<osabi>"; | |
d278f585 | 166 | buffer += osabi; |
1d0aa65c AH |
167 | buffer += "</osabi>"; |
168 | } | |
0abe8a89 | 169 | |
82ec9bc7 | 170 | for (const tdesc_feature_up &feature : tdesc->features) |
0abe8a89 YQ |
171 | { |
172 | buffer += "<xi:include href=\""; | |
82ec9bc7 | 173 | buffer += feature->name; |
0abe8a89 YQ |
174 | buffer += "\"/>"; |
175 | } | |
176 | ||
177 | buffer += "</target>"; | |
178 | ||
179 | tdesc->xmltarget = xstrdup (buffer.c_str ()); | |
180 | } | |
181 | ||
182 | return tdesc->xmltarget; | |
183 | } | |
3aee8918 | 184 | #endif |
f49ff000 | 185 | |
f46cd62a | 186 | /* See common/tdesc.h. */ |
f49ff000 YQ |
187 | |
188 | struct tdesc_feature * | |
0abe8a89 YQ |
189 | tdesc_create_feature (struct target_desc *tdesc, const char *name, |
190 | const char *xml) | |
f49ff000 | 191 | { |
82ec9bc7 AH |
192 | struct tdesc_feature *new_feature = new tdesc_feature |
193 | (xml != nullptr ? xml : name); | |
194 | tdesc->features.emplace_back (new_feature); | |
195 | return new_feature; | |
f49ff000 | 196 | } |