/* Copyright (C) 2012-2021 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; }