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
= *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 */