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;
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
59 = (struct memory_map_parsing_data *) user_data;
60 struct mem_region *r = VEC_safe_push (mem_region_s, *data->memory_map, NULL);
61 ULONGEST *start_p, *length_p, *type_p;
64 = (ULONGEST *) xml_find_attribute (attributes, "start")->value;
66 = (ULONGEST *) xml_find_attribute (attributes, "length")->value;
68 = (ULONGEST *) xml_find_attribute (attributes, "type")->value;
72 r->hi = r->lo + *length_p;
73 r->attrib.mode = (enum mem_access_mode) *type_p;
74 r->attrib.blocksize = -1;
77 /* Handle the end of a <memory> element. Verify that any necessary
78 children were present. */
81 memory_map_end_memory (struct gdb_xml_parser *parser,
82 const struct gdb_xml_element *element,
83 void *user_data, const char *body_text)
85 struct memory_map_parsing_data *data
86 = (struct memory_map_parsing_data *) user_data;
87 struct mem_region *r = VEC_last (mem_region_s, *data->memory_map);
89 if (r->attrib.mode == MEM_FLASH && r->attrib.blocksize == -1)
90 gdb_xml_error (parser, _("Flash block size is not set"));
93 /* Handle the start of a <property> element by saving the name
94 attribute for later. */
97 memory_map_start_property (struct gdb_xml_parser *parser,
98 const struct gdb_xml_element *element,
99 void *user_data, VEC(gdb_xml_value_s) *attributes)
101 struct memory_map_parsing_data *data
102 = (struct memory_map_parsing_data *) user_data;
105 name = (char *) xml_find_attribute (attributes, "name")->value;
106 snprintf (data->property_name, sizeof (data->property_name), "%s", name);
109 /* Handle the end of a <property> element and its value. */
112 memory_map_end_property (struct gdb_xml_parser *parser,
113 const struct gdb_xml_element *element,
114 void *user_data, const char *body_text)
116 struct memory_map_parsing_data *data
117 = (struct memory_map_parsing_data *) user_data;
118 char *name = data->property_name;
120 if (strcmp (name, "blocksize") == 0)
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\""), name);
130 /* Discard the constructed memory map (if an error occurs). */
133 clear_result (void *p)
135 VEC(mem_region_s) **result = (VEC(mem_region_s) **) p;
136 VEC_free (mem_region_s, *result);
140 /* The allowed elements and attributes for an XML memory map. */
142 const struct gdb_xml_attribute property_attributes[] = {
143 { "name", GDB_XML_AF_NONE, NULL, NULL },
144 { NULL, GDB_XML_AF_NONE, NULL, NULL }
147 const struct gdb_xml_element memory_children[] = {
148 { "property", property_attributes, NULL,
149 GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
150 memory_map_start_property, memory_map_end_property },
151 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
154 const struct gdb_xml_enum memory_type_enum[] = {
157 { "flash", MEM_FLASH },
161 const struct gdb_xml_attribute memory_attributes[] = {
162 { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
163 { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
164 { "type", GDB_XML_AF_NONE, gdb_xml_parse_attr_enum, &memory_type_enum },
165 { NULL, GDB_XML_AF_NONE, NULL, NULL }
168 const struct gdb_xml_element memory_map_children[] = {
169 { "memory", memory_attributes, memory_children, GDB_XML_EF_REPEATABLE,
170 memory_map_start_memory, memory_map_end_memory },
171 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
174 const struct gdb_xml_element memory_map_elements[] = {
175 { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE,
177 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
181 parse_memory_map (const char *memory_map)
183 VEC(mem_region_s) *result = NULL;
184 struct cleanup *back_to;
185 struct memory_map_parsing_data data = { NULL };
187 data.memory_map = &result;
188 back_to = make_cleanup (clear_result, &result);
189 if (gdb_xml_parse_quick (_("target memory map"), NULL, memory_map_elements,
190 memory_map, &data) == 0)
192 /* Parsed successfully, keep the result. */
193 discard_cleanups (back_to);
197 do_cleanups (back_to);
201 #endif /* HAVE_LIBEXPAT */