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 | ||
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 PA |
62 | void |
63 | init_target_desc (struct target_desc *tdesc) | |
64 | { | |
c4dfafab | 65 | int offset = 0; |
3aee8918 | 66 | |
ea3e7d71 | 67 | /* Go through all the features and populate reg_defs. */ |
82ec9bc7 AH |
68 | for (const tdesc_feature_up &feature : tdesc->features) |
69 | for (const tdesc_reg_up &treg : feature->registers) | |
70 | { | |
71 | int regnum = treg->target_regnum; | |
ea3e7d71 | 72 | |
82ec9bc7 AH |
73 | /* Register number will increase (possibly with gaps) or be zero. */ |
74 | gdb_assert (regnum == 0 || regnum >= tdesc->reg_defs.size ()); | |
ea3e7d71 | 75 | |
82ec9bc7 AH |
76 | if (regnum != 0) |
77 | tdesc->reg_defs.resize (regnum, reg (offset)); | |
ea3e7d71 | 78 | |
82ec9bc7 AH |
79 | tdesc->reg_defs.emplace_back (treg->name.c_str (), offset, |
80 | treg->bitsize); | |
81 | offset += treg->bitsize; | |
82 | } | |
3aee8918 PA |
83 | |
84 | tdesc->registers_size = offset / 8; | |
85 | ||
86 | /* Make sure PBUFSIZ is large enough to hold a full register | |
87 | packet. */ | |
38e08fca | 88 | gdb_assert (2 * tdesc->registers_size + 32 <= PBUFSIZ); |
3aee8918 PA |
89 | } |
90 | ||
5f035c07 YQ |
91 | struct target_desc * |
92 | allocate_target_description (void) | |
93 | { | |
94 | return new target_desc (); | |
95 | } | |
96 | ||
3aee8918 PA |
97 | #ifndef IN_PROCESS_AGENT |
98 | ||
f49ff000 | 99 | static const struct target_desc default_description {}; |
3aee8918 PA |
100 | |
101 | void | |
102 | copy_target_description (struct target_desc *dest, | |
103 | const struct target_desc *src) | |
104 | { | |
105 | dest->reg_defs = src->reg_defs; | |
3aee8918 PA |
106 | dest->expedite_regs = src->expedite_regs; |
107 | dest->registers_size = src->registers_size; | |
108 | dest->xmltarget = src->xmltarget; | |
109 | } | |
110 | ||
111 | const struct target_desc * | |
112 | current_target_desc (void) | |
113 | { | |
0bfdf32f | 114 | if (current_thread == NULL) |
3aee8918 PA |
115 | return &default_description; |
116 | ||
117 | return current_process ()->tdesc; | |
118 | } | |
0abe8a89 | 119 | |
f46cd62a | 120 | /* See common/tdesc.h. */ |
5f035c07 | 121 | |
d278f585 AH |
122 | const char * |
123 | tdesc_architecture_name (const struct target_desc *target_desc) | |
124 | { | |
125 | return target_desc->arch; | |
126 | } | |
127 | ||
128 | /* See common/tdesc.h. */ | |
129 | ||
0abe8a89 YQ |
130 | void |
131 | set_tdesc_architecture (struct target_desc *target_desc, | |
132 | const char *name) | |
133 | { | |
134 | target_desc->arch = xstrdup (name); | |
135 | } | |
136 | ||
f46cd62a | 137 | /* See common/tdesc.h. */ |
5f035c07 | 138 | |
d278f585 AH |
139 | const char * |
140 | tdesc_osabi_name (const struct target_desc *target_desc) | |
141 | { | |
142 | return target_desc->osabi; | |
143 | } | |
144 | ||
145 | /* See common/tdesc.h. */ | |
146 | ||
0abe8a89 YQ |
147 | void |
148 | set_tdesc_osabi (struct target_desc *target_desc, const char *name) | |
149 | { | |
150 | target_desc->osabi = xstrdup (name); | |
151 | } | |
152 | ||
e98577a9 | 153 | /* See common/tdesc.h. */ |
0abe8a89 YQ |
154 | |
155 | const char * | |
e98577a9 | 156 | tdesc_get_features_xml (const target_desc *tdesc) |
0abe8a89 YQ |
157 | { |
158 | /* Either .xmltarget or .features is not NULL. */ | |
159 | gdb_assert (tdesc->xmltarget != NULL | |
17d08cd4 | 160 | || (!tdesc->features.empty () |
1d0aa65c | 161 | && tdesc->arch != NULL)); |
0abe8a89 YQ |
162 | |
163 | if (tdesc->xmltarget == NULL) | |
164 | { | |
e98577a9 AH |
165 | std::string buffer ("@"); |
166 | print_xml_feature v (&buffer); | |
167 | tdesc->accept (v); | |
0abe8a89 YQ |
168 | tdesc->xmltarget = xstrdup (buffer.c_str ()); |
169 | } | |
170 | ||
171 | return tdesc->xmltarget; | |
172 | } | |
3aee8918 | 173 | #endif |
f49ff000 | 174 | |
f46cd62a | 175 | /* See common/tdesc.h. */ |
f49ff000 YQ |
176 | |
177 | struct tdesc_feature * | |
0abe8a89 YQ |
178 | tdesc_create_feature (struct target_desc *tdesc, const char *name, |
179 | const char *xml) | |
f49ff000 | 180 | { |
82ec9bc7 AH |
181 | struct tdesc_feature *new_feature = new tdesc_feature |
182 | (xml != nullptr ? xml : name); | |
183 | tdesc->features.emplace_back (new_feature); | |
184 | return new_feature; | |
f49ff000 | 185 | } |