1 /* Routines for handling XML memory maps provided by target.
3 Copyright (C) 2006-2015 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;
48 char property_name[32];
51 /* Handle the start of a <memory> element. */
54 memory_map_start_memory (struct gdb_xml_parser *parser,
55 const struct gdb_xml_element *element,
56 void *user_data, VEC(gdb_xml_value_s) *attributes)
58 struct memory_map_parsing_data *data = user_data;
59 struct mem_region *r = VEC_safe_push (mem_region_s, *data->memory_map, NULL);
60 ULONGEST *start_p, *length_p, *type_p;
62 start_p = xml_find_attribute (attributes, "start")->value;
63 length_p = xml_find_attribute (attributes, "length")->value;
64 type_p = xml_find_attribute (attributes, "type")->value;
68 r->hi = r->lo + *length_p;
69 r->attrib.mode = (enum mem_access_mode) *type_p;
70 r->attrib.blocksize = -1;
73 /* Handle the end of a <memory> element. Verify that any necessary
74 children were present. */
77 memory_map_end_memory (struct gdb_xml_parser *parser,
78 const struct gdb_xml_element *element,
79 void *user_data, const char *body_text)
81 struct memory_map_parsing_data *data = user_data;
82 struct mem_region *r = VEC_last (mem_region_s, *data->memory_map);
84 if (r->attrib.mode == MEM_FLASH && r->attrib.blocksize == -1)
85 gdb_xml_error (parser, _("Flash block size is not set"));
88 /* Handle the start of a <property> element by saving the name
89 attribute for later. */
92 memory_map_start_property (struct gdb_xml_parser *parser,
93 const struct gdb_xml_element *element,
94 void *user_data, VEC(gdb_xml_value_s) *attributes)
96 struct memory_map_parsing_data *data = user_data;
99 name = xml_find_attribute (attributes, "name")->value;
100 snprintf (data->property_name, sizeof (data->property_name), "%s", name);
103 /* Handle the end of a <property> element and its value. */
106 memory_map_end_property (struct gdb_xml_parser *parser,
107 const struct gdb_xml_element *element,
108 void *user_data, const char *body_text)
110 struct memory_map_parsing_data *data = user_data;
111 char *name = data->property_name;
113 if (strcmp (name, "blocksize") == 0)
115 struct mem_region *r = VEC_last (mem_region_s, *data->memory_map);
117 r->attrib.blocksize = gdb_xml_parse_ulongest (parser, body_text);
120 gdb_xml_debug (parser, _("Unknown property \"%s\""), name);
123 /* Discard the constructed memory map (if an error occurs). */
126 clear_result (void *p)
128 VEC(mem_region_s) **result = p;
129 VEC_free (mem_region_s, *result);
133 /* The allowed elements and attributes for an XML memory map. */
135 const struct gdb_xml_attribute property_attributes[] = {
136 { "name", GDB_XML_AF_NONE, NULL, NULL },
137 { NULL, GDB_XML_AF_NONE, NULL, NULL }
140 const struct gdb_xml_element memory_children[] = {
141 { "property", property_attributes, NULL,
142 GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
143 memory_map_start_property, memory_map_end_property },
144 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
147 const struct gdb_xml_enum memory_type_enum[] = {
150 { "flash", MEM_FLASH },
154 const struct gdb_xml_attribute memory_attributes[] = {
155 { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
156 { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
157 { "type", GDB_XML_AF_NONE, gdb_xml_parse_attr_enum, &memory_type_enum },
158 { NULL, GDB_XML_AF_NONE, NULL, NULL }
161 const struct gdb_xml_element memory_map_children[] = {
162 { "memory", memory_attributes, memory_children, GDB_XML_EF_REPEATABLE,
163 memory_map_start_memory, memory_map_end_memory },
164 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
167 const struct gdb_xml_element memory_map_elements[] = {
168 { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE,
170 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
174 parse_memory_map (const char *memory_map)
176 VEC(mem_region_s) *result = NULL;
177 struct cleanup *back_to;
178 struct memory_map_parsing_data data = { NULL };
180 data.memory_map = &result;
181 back_to = make_cleanup (clear_result, &result);
182 if (gdb_xml_parse_quick (_("target memory map"), NULL, memory_map_elements,
183 memory_map, &data) == 0)
185 /* Parsed successfully, keep the result. */
186 discard_cleanups (back_to);
190 do_cleanups (back_to);
194 #endif /* HAVE_LIBEXPAT */