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- /* Routines for handling XML memory maps provided by target.
- Copyright (C) 2006-2022 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 "defs.h"
- #include "memory-map.h"
- #if !defined(HAVE_LIBEXPAT)
- std::vector<mem_region>
- parse_memory_map (const char *memory_map)
- {
- static int have_warned;
- if (!have_warned)
- {
- have_warned = 1;
- warning (_("Can not parse XML memory map; XML support was disabled "
- "at compile time"));
- }
- return std::vector<mem_region> ();
- }
- #else /* HAVE_LIBEXPAT */
- #include "xml-support.h"
- /* Internal parsing data passed to all XML callbacks. */
- struct memory_map_parsing_data
- {
- memory_map_parsing_data (std::vector<mem_region> *memory_map_)
- : memory_map (memory_map_)
- {}
- std::vector<mem_region> *memory_map;
- std::string property_name;
- };
- /* Handle the start of a <memory> element. */
- static void
- memory_map_start_memory (struct gdb_xml_parser *parser,
- const struct gdb_xml_element *element,
- void *user_data,
- std::vector<gdb_xml_value> &attributes)
- {
- struct memory_map_parsing_data *data
- = (struct memory_map_parsing_data *) user_data;
- ULONGEST *start_p, *length_p, *type_p;
- start_p
- = (ULONGEST *) xml_find_attribute (attributes, "start")->value.get ();
- length_p
- = (ULONGEST *) xml_find_attribute (attributes, "length")->value.get ();
- type_p
- = (ULONGEST *) xml_find_attribute (attributes, "type")->value.get ();
- data->memory_map->emplace_back (*start_p, *start_p + *length_p,
- (enum mem_access_mode) *type_p);
- }
- /* Handle the end of a <memory> element. Verify that any necessary
- children were present. */
- static void
- memory_map_end_memory (struct gdb_xml_parser *parser,
- const struct gdb_xml_element *element,
- void *user_data, const char *body_text)
- {
- struct memory_map_parsing_data *data
- = (struct memory_map_parsing_data *) user_data;
- const mem_region &r = data->memory_map->back ();
- if (r.attrib.mode == MEM_FLASH && r.attrib.blocksize == -1)
- gdb_xml_error (parser, _("Flash block size is not set"));
- }
- /* Handle the start of a <property> element by saving the name
- attribute for later. */
- static void
- memory_map_start_property (struct gdb_xml_parser *parser,
- const struct gdb_xml_element *element,
- void *user_data,
- std::vector<gdb_xml_value> &attributes)
- {
- struct memory_map_parsing_data *data
- = (struct memory_map_parsing_data *) user_data;
- char *name;
- name = (char *) xml_find_attribute (attributes, "name")->value.get ();
- data->property_name.assign (name);
- }
- /* Handle the end of a <property> element and its value. */
- static void
- memory_map_end_property (struct gdb_xml_parser *parser,
- const struct gdb_xml_element *element,
- void *user_data, const char *body_text)
- {
- struct memory_map_parsing_data *data
- = (struct memory_map_parsing_data *) user_data;
- if (data->property_name == "blocksize")
- {
- mem_region &r = data->memory_map->back ();
- r.attrib.blocksize = gdb_xml_parse_ulongest (parser, body_text);
- }
- else
- gdb_xml_debug (parser, _("Unknown property \"%s\""),
- data->property_name.c_str ());
- }
- /* The allowed elements and attributes for an XML memory map. */
- const struct gdb_xml_attribute property_attributes[] = {
- { "name", GDB_XML_AF_NONE, NULL, NULL },
- { NULL, GDB_XML_AF_NONE, NULL, NULL }
- };
- const struct gdb_xml_element memory_children[] = {
- { "property", property_attributes, NULL,
- GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
- memory_map_start_property, memory_map_end_property },
- { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
- };
- const struct gdb_xml_enum memory_type_enum[] = {
- { "ram", MEM_RW },
- { "rom", MEM_RO },
- { "flash", MEM_FLASH },
- { NULL, 0 }
- };
- const struct gdb_xml_attribute memory_attributes[] = {
- { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
- { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
- { "type", GDB_XML_AF_NONE, gdb_xml_parse_attr_enum, &memory_type_enum },
- { NULL, GDB_XML_AF_NONE, NULL, NULL }
- };
- const struct gdb_xml_element memory_map_children[] = {
- { "memory", memory_attributes, memory_children, GDB_XML_EF_REPEATABLE,
- memory_map_start_memory, memory_map_end_memory },
- { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
- };
- const struct gdb_xml_element memory_map_elements[] = {
- { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE,
- NULL, NULL },
- { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
- };
- std::vector<mem_region>
- parse_memory_map (const char *memory_map)
- {
- std::vector<mem_region> ret;
- memory_map_parsing_data data (&ret);
- if (gdb_xml_parse_quick (_("target memory map"), NULL, memory_map_elements,
- memory_map, &data) == 0)
- {
- /* Parsed successfully, keep the result. */
- return ret;
- }
- return std::vector<mem_region> ();
- }
- #endif /* HAVE_LIBEXPAT */
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