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- /* Copyright (C) 2012-2022 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, gdb::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
- }
- /* See gdbsupport/tdesc.h. */
- target_desc_up
- allocate_target_description (void)
- {
- return target_desc_up (new target_desc ());
- }
- /* See gdbsupport/tdesc.h. */
- void
- target_desc_deleter::operator() (struct target_desc *target_desc) const
- {
- delete 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;
- }
- /* An empty structure. */
- struct tdesc_compatible_info { };
- /* See gdbsupport/tdesc.h. */
- const std::vector<tdesc_compatible_info_up> &
- tdesc_compatible_info_list (const target_desc *target_desc)
- {
- static std::vector<tdesc_compatible_info_up> empty;
- return empty;
- }
- /* See gdbsupport/tdesc.h. */
- const char *
- tdesc_compatible_info_arch_name (const tdesc_compatible_info_up &c_info)
- {
- return nullptr;
- }
- /* See gdbsupport/tdesc.h. */
- const char *
- tdesc_architecture_name (const struct target_desc *target_desc)
- {
- return target_desc->arch;
- }
- /* See gdbsupport/tdesc.h. */
- void
- set_tdesc_architecture (struct target_desc *target_desc,
- const char *name)
- {
- target_desc->arch = xstrdup (name);
- }
- /* See gdbsupport/tdesc.h. */
- const char *
- tdesc_osabi_name (const struct target_desc *target_desc)
- {
- return target_desc->osabi;
- }
- /* See gdbsupport/tdesc.h. */
- void
- set_tdesc_osabi (struct target_desc *target_desc, const char *name)
- {
- target_desc->osabi = xstrdup (name);
- }
- /* See gdbsupport/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 gdbsupport/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;
- }
- /* See gdbsupport/tdesc.h. */
- bool
- tdesc_contains_feature (const target_desc *tdesc, const std::string &feature)
- {
- gdb_assert (tdesc != nullptr);
- for (const tdesc_feature_up &f : tdesc->features)
- {
- if (f->name == feature)
- return true;
- }
- return false;
- }
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