1 /* Routines for handling XML memory maps provided by target.
3 Copyright (C) 2006-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "memory-map.h"
23 #if !defined(HAVE_LIBEXPAT)
25 std::vector<mem_region>
26 parse_memory_map (const char *memory_map)
28 static int have_warned;
33 warning (_("Can not parse XML memory map; XML support was disabled "
37 return std::vector<mem_region> ();
40 #else /* HAVE_LIBEXPAT */
42 #include "xml-support.h"
44 /* Internal parsing data passed to all XML callbacks. */
45 struct memory_map_parsing_data
47 memory_map_parsing_data (std::vector<mem_region> *memory_map_)
48 : memory_map (memory_map_)
51 std::vector<mem_region> *memory_map;
53 std::string property_name;
56 /* Handle the start of a <memory> element. */
59 memory_map_start_memory (struct gdb_xml_parser *parser,
60 const struct gdb_xml_element *element,
61 void *user_data, VEC(gdb_xml_value_s) *attributes)
63 struct memory_map_parsing_data *data
64 = (struct memory_map_parsing_data *) user_data;
65 ULONGEST *start_p, *length_p, *type_p;
68 = (ULONGEST *) xml_find_attribute (attributes, "start")->value;
70 = (ULONGEST *) xml_find_attribute (attributes, "length")->value;
72 = (ULONGEST *) xml_find_attribute (attributes, "type")->value;
74 data->memory_map->emplace_back (*start_p, *start_p + *length_p,
75 (enum mem_access_mode) *type_p);
78 /* Handle the end of a <memory> element. Verify that any necessary
79 children were present. */
82 memory_map_end_memory (struct gdb_xml_parser *parser,
83 const struct gdb_xml_element *element,
84 void *user_data, const char *body_text)
86 struct memory_map_parsing_data *data
87 = (struct memory_map_parsing_data *) user_data;
88 const mem_region &r = data->memory_map->back ();
90 if (r.attrib.mode == MEM_FLASH && r.attrib.blocksize == -1)
91 gdb_xml_error (parser, _("Flash block size is not set"));
94 /* Handle the start of a <property> element by saving the name
95 attribute for later. */
98 memory_map_start_property (struct gdb_xml_parser *parser,
99 const struct gdb_xml_element *element,
100 void *user_data, VEC(gdb_xml_value_s) *attributes)
102 struct memory_map_parsing_data *data
103 = (struct memory_map_parsing_data *) user_data;
106 name = (char *) xml_find_attribute (attributes, "name")->value;
107 data->property_name.assign (name);
110 /* Handle the end of a <property> element and its value. */
113 memory_map_end_property (struct gdb_xml_parser *parser,
114 const struct gdb_xml_element *element,
115 void *user_data, const char *body_text)
117 struct memory_map_parsing_data *data
118 = (struct memory_map_parsing_data *) user_data;
120 if (data->property_name == "blocksize")
122 mem_region &r = data->memory_map->back ();
124 r.attrib.blocksize = gdb_xml_parse_ulongest (parser, body_text);
127 gdb_xml_debug (parser, _("Unknown property \"%s\""),
128 data->property_name.c_str ());
131 /* The allowed elements and attributes for an XML memory map. */
133 const struct gdb_xml_attribute property_attributes[] = {
134 { "name", GDB_XML_AF_NONE, NULL, NULL },
135 { NULL, GDB_XML_AF_NONE, NULL, NULL }
138 const struct gdb_xml_element memory_children[] = {
139 { "property", property_attributes, NULL,
140 GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
141 memory_map_start_property, memory_map_end_property },
142 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
145 const struct gdb_xml_enum memory_type_enum[] = {
148 { "flash", MEM_FLASH },
152 const struct gdb_xml_attribute memory_attributes[] = {
153 { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
154 { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
155 { "type", GDB_XML_AF_NONE, gdb_xml_parse_attr_enum, &memory_type_enum },
156 { NULL, GDB_XML_AF_NONE, NULL, NULL }
159 const struct gdb_xml_element memory_map_children[] = {
160 { "memory", memory_attributes, memory_children, GDB_XML_EF_REPEATABLE,
161 memory_map_start_memory, memory_map_end_memory },
162 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
165 const struct gdb_xml_element memory_map_elements[] = {
166 { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE,
168 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
171 std::vector<mem_region>
172 parse_memory_map (const char *memory_map)
174 std::vector<mem_region> ret;
175 memory_map_parsing_data data (&ret);
177 if (gdb_xml_parse_quick (_("target memory map"), NULL, memory_map_elements,
178 memory_map, &data) == 0)
180 /* Parsed successfully, keep the result. */
184 return std::vector<mem_region> ();
187 #endif /* HAVE_LIBEXPAT */