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)
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 "
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 VEC(mem_region_s) **memory_map;
49 std::string property_name;
52 /* Handle the start of a <memory> element. */
55 memory_map_start_memory (struct gdb_xml_parser *parser,
56 const struct gdb_xml_element *element,
57 void *user_data, VEC(gdb_xml_value_s) *attributes)
59 struct memory_map_parsing_data *data
60 = (struct memory_map_parsing_data *) user_data;
61 struct mem_region *r = VEC_safe_push (mem_region_s, *data->memory_map, NULL);
62 ULONGEST *start_p, *length_p, *type_p;
65 = (ULONGEST *) xml_find_attribute (attributes, "start")->value;
67 = (ULONGEST *) xml_find_attribute (attributes, "length")->value;
69 = (ULONGEST *) xml_find_attribute (attributes, "type")->value;
73 r->hi = r->lo + *length_p;
74 r->attrib.mode = (enum mem_access_mode) *type_p;
75 r->attrib.blocksize = -1;
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 struct mem_region *r = VEC_last (mem_region_s, *data->memory_map);
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 struct mem_region *r = VEC_last (mem_region_s, *data->memory_map);
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 /* Discard the constructed memory map (if an error occurs). */
134 clear_result (void *p)
136 VEC(mem_region_s) **result = (VEC(mem_region_s) **) p;
137 VEC_free (mem_region_s, *result);
141 /* The allowed elements and attributes for an XML memory map. */
143 const struct gdb_xml_attribute property_attributes[] = {
144 { "name", GDB_XML_AF_NONE, NULL, NULL },
145 { NULL, GDB_XML_AF_NONE, NULL, NULL }
148 const struct gdb_xml_element memory_children[] = {
149 { "property", property_attributes, NULL,
150 GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
151 memory_map_start_property, memory_map_end_property },
152 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
155 const struct gdb_xml_enum memory_type_enum[] = {
158 { "flash", MEM_FLASH },
162 const struct gdb_xml_attribute memory_attributes[] = {
163 { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
164 { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
165 { "type", GDB_XML_AF_NONE, gdb_xml_parse_attr_enum, &memory_type_enum },
166 { NULL, GDB_XML_AF_NONE, NULL, NULL }
169 const struct gdb_xml_element memory_map_children[] = {
170 { "memory", memory_attributes, memory_children, GDB_XML_EF_REPEATABLE,
171 memory_map_start_memory, memory_map_end_memory },
172 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
175 const struct gdb_xml_element memory_map_elements[] = {
176 { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE,
178 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
182 parse_memory_map (const char *memory_map)
184 VEC(mem_region_s) *result = NULL;
185 struct cleanup *back_to;
186 struct memory_map_parsing_data data = { NULL };
188 data.memory_map = &result;
189 back_to = make_cleanup (clear_result, &result);
190 if (gdb_xml_parse_quick (_("target memory map"), NULL, memory_map_elements,
191 memory_map, &data) == 0)
193 /* Parsed successfully, keep the result. */
194 discard_cleanups (back_to);
198 do_cleanups (back_to);
202 #endif /* HAVE_LIBEXPAT */