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fd79ecee DJ |
1 | /* Routines for handling XML memory maps provided by target. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2006-2014 Free Software Foundation, Inc. |
fd79ecee DJ |
4 | |
5 | This file is part of GDB. | |
6 | ||
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
fd79ecee DJ |
10 | (at your option) any later version. |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
fd79ecee DJ |
19 | |
20 | #include "defs.h" | |
21 | #include "memory-map.h" | |
fd79ecee DJ |
22 | #include "exceptions.h" |
23 | ||
fd79ecee DJ |
24 | #if !defined(HAVE_LIBEXPAT) |
25 | ||
26 | VEC(mem_region_s) * | |
27 | parse_memory_map (const char *memory_map) | |
28 | { | |
29 | static int have_warned; | |
30 | ||
31 | if (!have_warned) | |
32 | { | |
33 | have_warned = 1; | |
34 | warning (_("Can not parse XML memory map; XML support was disabled " | |
35 | "at compile time")); | |
36 | } | |
37 | ||
38 | return NULL; | |
39 | } | |
40 | ||
41 | #else /* HAVE_LIBEXPAT */ | |
42 | ||
43 | #include "xml-support.h" | |
fd79ecee | 44 | |
e776119f | 45 | /* Internal parsing data passed to all XML callbacks. */ |
fd79ecee DJ |
46 | struct memory_map_parsing_data |
47 | { | |
48 | VEC(mem_region_s) **memory_map; | |
e776119f | 49 | char property_name[32]; |
fd79ecee DJ |
50 | }; |
51 | ||
e776119f DJ |
52 | /* Handle the start of a <memory> element. */ |
53 | ||
fd79ecee | 54 | static void |
e776119f DJ |
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) | |
fd79ecee | 58 | { |
e776119f DJ |
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; | |
62 | ||
3d2c1d41 PA |
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; | |
e776119f DJ |
66 | |
67 | mem_region_init (r); | |
68 | r->lo = *start_p; | |
69 | r->hi = r->lo + *length_p; | |
70 | r->attrib.mode = *type_p; | |
71 | r->attrib.blocksize = -1; | |
fd79ecee DJ |
72 | } |
73 | ||
e776119f DJ |
74 | /* Handle the end of a <memory> element. Verify that any necessary |
75 | children were present. */ | |
fd79ecee DJ |
76 | |
77 | static void | |
e776119f DJ |
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) | |
fd79ecee | 81 | { |
e776119f DJ |
82 | struct memory_map_parsing_data *data = user_data; |
83 | struct mem_region *r = VEC_last (mem_region_s, *data->memory_map); | |
fd79ecee | 84 | |
e776119f DJ |
85 | if (r->attrib.mode == MEM_FLASH && r->attrib.blocksize == -1) |
86 | gdb_xml_error (parser, _("Flash block size is not set")); | |
fd79ecee DJ |
87 | } |
88 | ||
e776119f DJ |
89 | /* Handle the start of a <property> element by saving the name |
90 | attribute for later. */ | |
fd79ecee DJ |
91 | |
92 | static void | |
e776119f DJ |
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) | |
fd79ecee | 96 | { |
e776119f DJ |
97 | struct memory_map_parsing_data *data = user_data; |
98 | char *name; | |
fd79ecee | 99 | |
3d2c1d41 | 100 | name = xml_find_attribute (attributes, "name")->value; |
e776119f | 101 | snprintf (data->property_name, sizeof (data->property_name), "%s", name); |
fd79ecee DJ |
102 | } |
103 | ||
e776119f | 104 | /* Handle the end of a <property> element and its value. */ |
fd79ecee | 105 | |
fd79ecee | 106 | static void |
e776119f DJ |
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) | |
fd79ecee | 110 | { |
e776119f DJ |
111 | struct memory_map_parsing_data *data = user_data; |
112 | char *name = data->property_name; | |
fd79ecee | 113 | |
e776119f | 114 | if (strcmp (name, "blocksize") == 0) |
fd79ecee | 115 | { |
e776119f | 116 | struct mem_region *r = VEC_last (mem_region_s, *data->memory_map); |
fd79ecee | 117 | |
e776119f DJ |
118 | r->attrib.blocksize = gdb_xml_parse_ulongest (parser, body_text); |
119 | } | |
120 | else | |
121 | gdb_xml_debug (parser, _("Unknown property \"%s\""), name); | |
fd79ecee DJ |
122 | } |
123 | ||
e776119f DJ |
124 | /* Discard the constructed memory map (if an error occurs). */ |
125 | ||
fd79ecee DJ |
126 | static void |
127 | clear_result (void *p) | |
128 | { | |
129 | VEC(mem_region_s) **result = p; | |
130 | VEC_free (mem_region_s, *result); | |
131 | *result = NULL; | |
132 | } | |
133 | ||
e776119f DJ |
134 | /* The allowed elements and attributes for an XML memory map. */ |
135 | ||
136 | const struct gdb_xml_attribute property_attributes[] = { | |
137 | { "name", GDB_XML_AF_NONE, NULL, NULL }, | |
138 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
139 | }; | |
140 | ||
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 } | |
146 | }; | |
147 | ||
148 | const struct gdb_xml_enum memory_type_enum[] = { | |
149 | { "ram", MEM_RW }, | |
150 | { "rom", MEM_RO }, | |
151 | { "flash", MEM_FLASH }, | |
152 | { NULL, 0 } | |
153 | }; | |
154 | ||
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 } | |
160 | }; | |
161 | ||
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 } | |
166 | }; | |
167 | ||
168 | const struct gdb_xml_element memory_map_elements[] = { | |
169 | { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE, | |
170 | NULL, NULL }, | |
171 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
172 | }; | |
173 | ||
fd79ecee DJ |
174 | VEC(mem_region_s) * |
175 | parse_memory_map (const char *memory_map) | |
176 | { | |
177 | VEC(mem_region_s) *result = NULL; | |
efc0eabd | 178 | struct cleanup *back_to; |
f6071bfa | 179 | struct memory_map_parsing_data data = { NULL }; |
fd79ecee | 180 | |
fd79ecee | 181 | data.memory_map = &result; |
efc0eabd PA |
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) | |
185 | { | |
186 | /* Parsed successfully, keep the result. */ | |
187 | discard_cleanups (back_to); | |
188 | return result; | |
189 | } | |
fd79ecee | 190 | |
fd79ecee | 191 | do_cleanups (back_to); |
efc0eabd | 192 | return NULL; |
fd79ecee DJ |
193 | } |
194 | ||
195 | #endif /* HAVE_LIBEXPAT */ |