1 /* Routines for handling XML memory maps provided by target.
3 Copyright (C) 2006-2014 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"
22 #include "exceptions.h"
24 #if !defined(HAVE_LIBEXPAT)
27 parse_memory_map (const char *memory_map
)
29 static int have_warned
;
34 warning (_("Can not parse XML memory map; XML support was disabled "
41 #else /* HAVE_LIBEXPAT */
43 #include "xml-support.h"
45 /* Internal parsing data passed to all XML callbacks. */
46 struct memory_map_parsing_data
48 VEC(mem_region_s
) **memory_map
;
49 char property_name
[32];
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
= 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
;
63 start_p
= xml_find_attribute (attributes
, "start")->value
;
64 length_p
= xml_find_attribute (attributes
, "length")->value
;
65 type_p
= xml_find_attribute (attributes
, "type")->value
;
69 r
->hi
= r
->lo
+ *length_p
;
70 r
->attrib
.mode
= *type_p
;
71 r
->attrib
.blocksize
= -1;
74 /* Handle the end of a <memory> element. Verify that any necessary
75 children were present. */
78 memory_map_end_memory (struct gdb_xml_parser
*parser
,
79 const struct gdb_xml_element
*element
,
80 void *user_data
, const char *body_text
)
82 struct memory_map_parsing_data
*data
= user_data
;
83 struct mem_region
*r
= VEC_last (mem_region_s
, *data
->memory_map
);
85 if (r
->attrib
.mode
== MEM_FLASH
&& r
->attrib
.blocksize
== -1)
86 gdb_xml_error (parser
, _("Flash block size is not set"));
89 /* Handle the start of a <property> element by saving the name
90 attribute for later. */
93 memory_map_start_property (struct gdb_xml_parser
*parser
,
94 const struct gdb_xml_element
*element
,
95 void *user_data
, VEC(gdb_xml_value_s
) *attributes
)
97 struct memory_map_parsing_data
*data
= user_data
;
100 name
= xml_find_attribute (attributes
, "name")->value
;
101 snprintf (data
->property_name
, sizeof (data
->property_name
), "%s", name
);
104 /* Handle the end of a <property> element and its value. */
107 memory_map_end_property (struct gdb_xml_parser
*parser
,
108 const struct gdb_xml_element
*element
,
109 void *user_data
, const char *body_text
)
111 struct memory_map_parsing_data
*data
= user_data
;
112 char *name
= data
->property_name
;
114 if (strcmp (name
, "blocksize") == 0)
116 struct mem_region
*r
= VEC_last (mem_region_s
, *data
->memory_map
);
118 r
->attrib
.blocksize
= gdb_xml_parse_ulongest (parser
, body_text
);
121 gdb_xml_debug (parser
, _("Unknown property \"%s\""), name
);
124 /* Discard the constructed memory map (if an error occurs). */
127 clear_result (void *p
)
129 VEC(mem_region_s
) **result
= p
;
130 VEC_free (mem_region_s
, *result
);
134 /* The allowed elements and attributes for an XML memory map. */
136 const struct gdb_xml_attribute property_attributes
[] = {
137 { "name", GDB_XML_AF_NONE
, NULL
, NULL
},
138 { NULL
, GDB_XML_AF_NONE
, NULL
, NULL
}
141 const struct gdb_xml_element memory_children
[] = {
142 { "property", property_attributes
, NULL
,
143 GDB_XML_EF_REPEATABLE
| GDB_XML_EF_OPTIONAL
,
144 memory_map_start_property
, memory_map_end_property
},
145 { NULL
, NULL
, NULL
, GDB_XML_EF_NONE
, NULL
, NULL
}
148 const struct gdb_xml_enum memory_type_enum
[] = {
151 { "flash", MEM_FLASH
},
155 const struct gdb_xml_attribute memory_attributes
[] = {
156 { "start", GDB_XML_AF_NONE
, gdb_xml_parse_attr_ulongest
, NULL
},
157 { "length", GDB_XML_AF_NONE
, gdb_xml_parse_attr_ulongest
, NULL
},
158 { "type", GDB_XML_AF_NONE
, gdb_xml_parse_attr_enum
, &memory_type_enum
},
159 { NULL
, GDB_XML_AF_NONE
, NULL
, NULL
}
162 const struct gdb_xml_element memory_map_children
[] = {
163 { "memory", memory_attributes
, memory_children
, GDB_XML_EF_REPEATABLE
,
164 memory_map_start_memory
, memory_map_end_memory
},
165 { NULL
, NULL
, NULL
, GDB_XML_EF_NONE
, NULL
, NULL
}
168 const struct gdb_xml_element memory_map_elements
[] = {
169 { "memory-map", NULL
, memory_map_children
, GDB_XML_EF_NONE
,
171 { NULL
, NULL
, NULL
, GDB_XML_EF_NONE
, NULL
, NULL
}
175 parse_memory_map (const char *memory_map
)
177 VEC(mem_region_s
) *result
= NULL
;
178 struct cleanup
*back_to
;
179 struct memory_map_parsing_data data
= { NULL
};
181 data
.memory_map
= &result
;
182 back_to
= make_cleanup (clear_result
, &result
);
183 if (gdb_xml_parse_quick (_("target memory map"), NULL
, memory_map_elements
,
184 memory_map
, &data
) == 0)
186 /* Parsed successfully, keep the result. */
187 discard_cleanups (back_to
);
191 do_cleanups (back_to
);
195 #endif /* HAVE_LIBEXPAT */