1 /* Copyright (C) 2012-2022 Free Software Foundation, Inc.
3 This file is part of GDB.
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.
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.
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/>. */
22 #ifndef IN_PROCESS_AGENT
24 target_desc::~target_desc ()
26 xfree ((char *) arch);
27 xfree ((char *) osabi);
30 bool target_desc::operator== (const target_desc &other) const
32 if (reg_defs != other.reg_defs)
35 /* Compare expedite_regs. */
37 for (; expedite_regs[i] != NULL; i++)
39 if (strcmp (expedite_regs[i], other.expedite_regs[i]) != 0)
42 if (other.expedite_regs[i] != NULL)
50 void target_desc::accept (tdesc_element_visitor &v) const
52 #ifndef IN_PROCESS_AGENT
55 for (const tdesc_feature_up &feature : features)
63 init_target_desc (struct target_desc *tdesc,
64 const char **expedite_regs)
68 /* Go through all the features and populate reg_defs. */
69 for (const tdesc_feature_up &feature : tdesc->features)
70 for (const tdesc_reg_up &treg : feature->registers)
72 int regnum = treg->target_regnum;
74 /* Register number will increase (possibly with gaps) or be zero. */
75 gdb_assert (regnum == 0 || regnum >= tdesc->reg_defs.size ());
78 tdesc->reg_defs.resize (regnum, gdb::reg (offset));
80 tdesc->reg_defs.emplace_back (treg->name.c_str (), offset,
82 offset += treg->bitsize;
85 tdesc->registers_size = offset / 8;
87 /* Make sure PBUFSIZ is large enough to hold a full register
89 gdb_assert (2 * tdesc->registers_size + 32 <= PBUFSIZ);
91 #ifndef IN_PROCESS_AGENT
92 tdesc->expedite_regs = expedite_regs;
96 /* See gdbsupport/tdesc.h. */
99 allocate_target_description (void)
101 return target_desc_up (new target_desc ());
104 /* See gdbsupport/tdesc.h. */
107 target_desc_deleter::operator() (struct target_desc *target_desc) const
112 #ifndef IN_PROCESS_AGENT
114 static const struct target_desc default_description {};
117 copy_target_description (struct target_desc *dest,
118 const struct target_desc *src)
120 dest->reg_defs = src->reg_defs;
121 dest->expedite_regs = src->expedite_regs;
122 dest->registers_size = src->registers_size;
123 dest->xmltarget = src->xmltarget;
126 const struct target_desc *
127 current_target_desc (void)
129 if (current_thread == NULL)
130 return &default_description;
132 return current_process ()->tdesc;
135 /* An empty structure. */
137 struct tdesc_compatible_info { };
139 /* See gdbsupport/tdesc.h. */
141 const std::vector<tdesc_compatible_info_up> &
142 tdesc_compatible_info_list (const target_desc *target_desc)
144 static std::vector<tdesc_compatible_info_up> empty;
148 /* See gdbsupport/tdesc.h. */
151 tdesc_compatible_info_arch_name (const tdesc_compatible_info_up &c_info)
156 /* See gdbsupport/tdesc.h. */
159 tdesc_architecture_name (const struct target_desc *target_desc)
161 return target_desc->arch;
164 /* See gdbsupport/tdesc.h. */
167 set_tdesc_architecture (struct target_desc *target_desc,
170 target_desc->arch = xstrdup (name);
173 /* See gdbsupport/tdesc.h. */
176 tdesc_osabi_name (const struct target_desc *target_desc)
178 return target_desc->osabi;
181 /* See gdbsupport/tdesc.h. */
184 set_tdesc_osabi (struct target_desc *target_desc, const char *name)
186 target_desc->osabi = xstrdup (name);
189 /* See gdbsupport/tdesc.h. */
192 tdesc_get_features_xml (const target_desc *tdesc)
194 /* Either .xmltarget or .features is not NULL. */
195 gdb_assert (tdesc->xmltarget != NULL
196 || (!tdesc->features.empty ()
197 && tdesc->arch != NULL));
199 if (tdesc->xmltarget == NULL)
201 std::string buffer ("@");
202 print_xml_feature v (&buffer);
204 tdesc->xmltarget = xstrdup (buffer.c_str ());
207 return tdesc->xmltarget;
211 /* See gdbsupport/tdesc.h. */
213 struct tdesc_feature *
214 tdesc_create_feature (struct target_desc *tdesc, const char *name)
216 struct tdesc_feature *new_feature = new tdesc_feature (name);
217 tdesc->features.emplace_back (new_feature);
221 /* See gdbsupport/tdesc.h. */
224 tdesc_contains_feature (const target_desc *tdesc, const std::string &feature)
226 gdb_assert (tdesc != nullptr);
228 for (const tdesc_feature_up &f : tdesc->features)
230 if (f->name == feature)