242 lines
5.2 KiB
C
242 lines
5.2 KiB
C
/* Copyright (C) 2012-2017 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "server.h"
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#include "tdesc.h"
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#include "regdef.h"
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void
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init_target_desc (struct target_desc *tdesc)
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{
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int offset, i;
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struct reg *reg;
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offset = 0;
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for (i = 0; VEC_iterate (tdesc_reg_p, tdesc->reg_defs, i, reg); i++)
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{
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reg->offset = offset;
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offset += reg->size;
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}
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tdesc->registers_size = offset / 8;
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/* Make sure PBUFSIZ is large enough to hold a full register
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packet. */
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gdb_assert (2 * tdesc->registers_size + 32 <= PBUFSIZ);
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}
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struct target_desc *
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allocate_target_description (void)
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{
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return new target_desc ();
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}
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#ifndef IN_PROCESS_AGENT
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static const struct target_desc default_description {};
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void
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copy_target_description (struct target_desc *dest,
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const struct target_desc *src)
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{
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dest->reg_defs = src->reg_defs;
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dest->expedite_regs = src->expedite_regs;
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dest->registers_size = src->registers_size;
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dest->xmltarget = src->xmltarget;
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}
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const struct target_desc *
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current_target_desc (void)
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{
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if (current_thread == NULL)
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return &default_description;
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return current_process ()->tdesc;
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}
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/* See arch/tdesc.h. */
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void
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set_tdesc_architecture (struct target_desc *target_desc,
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const char *name)
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{
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target_desc->arch = xstrdup (name);
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}
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/* See arch/tdesc.h. */
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void
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set_tdesc_osabi (struct target_desc *target_desc, const char *name)
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{
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target_desc->osabi = xstrdup (name);
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}
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/* Return a string which is of XML format, including XML target
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description to be sent to GDB. */
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const char *
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tdesc_get_features_xml (target_desc *tdesc)
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{
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/* Either .xmltarget or .features is not NULL. */
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gdb_assert (tdesc->xmltarget != NULL
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|| (tdesc->features != NULL
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&& tdesc->arch != NULL
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&& tdesc->osabi != NULL));
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if (tdesc->xmltarget == NULL)
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{
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std::string buffer ("@<?xml version=\"1.0\"?>");
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buffer += "<!DOCTYPE target SYSTEM \"gdb-target.dtd\">";
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buffer += "<target>";
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buffer += "<architecture>";
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buffer += tdesc->arch;
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buffer += "</architecture>";
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buffer += "<osabi>";
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buffer += tdesc->osabi;
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buffer += "</osabi>";
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char *xml;
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for (int i = 0; VEC_iterate (char_ptr, tdesc->features, i, xml); i++)
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{
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buffer += "<xi:include href=\"";
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buffer += xml;
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buffer += "\"/>";
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}
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buffer += "</target>";
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tdesc->xmltarget = xstrdup (buffer.c_str ());
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}
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return tdesc->xmltarget;
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}
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#endif
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struct tdesc_type
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{};
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/* See arch/tdesc.h. */
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struct tdesc_feature *
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tdesc_create_feature (struct target_desc *tdesc, const char *name,
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const char *xml)
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{
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#ifndef IN_PROCESS_AGENT
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VEC_safe_push (char_ptr, tdesc->features, xstrdup (xml));
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#endif
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return tdesc;
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}
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/* See arch/tdesc.h. */
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struct tdesc_type *
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tdesc_create_flags (struct tdesc_feature *feature, const char *name,
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int size)
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{
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return NULL;
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}
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/* See arch/tdesc.h. */
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void
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tdesc_add_flag (struct tdesc_type *type, int start,
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const char *flag_name)
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{}
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/* See arch/tdesc.h. */
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struct tdesc_type *
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tdesc_named_type (const struct tdesc_feature *feature, const char *id)
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{
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return NULL;
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}
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/* See arch/tdesc.h. */
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struct tdesc_type *
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tdesc_create_union (struct tdesc_feature *feature, const char *id)
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{
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return NULL;
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}
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/* See arch/tdesc.h. */
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struct tdesc_type *
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tdesc_create_struct (struct tdesc_feature *feature, const char *id)
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{
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return NULL;
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}
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/* See arch/tdesc.h. */
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void
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tdesc_create_reg (struct tdesc_feature *feature, const char *name,
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int regnum, int save_restore, const char *group,
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int bitsize, const char *type)
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{
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struct target_desc *tdesc = (struct target_desc *) feature;
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while (VEC_length (tdesc_reg_p, tdesc->reg_defs) < regnum)
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{
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struct reg *reg = XCNEW (struct reg);
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reg->name = "";
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reg->size = 0;
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VEC_safe_push (tdesc_reg_p, tdesc->reg_defs, reg);
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}
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gdb_assert (regnum == 0
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|| regnum == VEC_length (tdesc_reg_p, tdesc->reg_defs));
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struct reg *reg = XCNEW (struct reg);
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reg->name = name;
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reg->size = bitsize;
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VEC_safe_push (tdesc_reg_p, tdesc->reg_defs, reg);
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}
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/* See arch/tdesc.h. */
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struct tdesc_type *
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tdesc_create_vector (struct tdesc_feature *feature, const char *name,
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struct tdesc_type *field_type, int count)
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{
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return NULL;
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}
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void
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tdesc_add_bitfield (struct tdesc_type *type, const char *field_name,
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int start, int end)
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{}
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/* See arch/tdesc.h. */
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void
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tdesc_add_field (struct tdesc_type *type, const char *field_name,
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struct tdesc_type *field_type)
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{}
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/* See arch/tdesc.h. */
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void
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tdesc_set_struct_size (struct tdesc_type *type, int size)
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{
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}
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