1 /* Routines for handling XML memory maps provided by target.
3 Copyright (C) 2006-2016 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 */