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fd79ecee DJ |
1 | /* Routines for handling XML memory maps provided by target. |
2 | ||
32d0add0 | 3 | Copyright (C) 2006-2015 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 | 22 | |
fd79ecee DJ |
23 | #if !defined(HAVE_LIBEXPAT) |
24 | ||
25 | VEC(mem_region_s) * | |
26 | parse_memory_map (const char *memory_map) | |
27 | { | |
28 | static int have_warned; | |
29 | ||
30 | if (!have_warned) | |
31 | { | |
32 | have_warned = 1; | |
33 | warning (_("Can not parse XML memory map; XML support was disabled " | |
34 | "at compile time")); | |
35 | } | |
36 | ||
37 | return NULL; | |
38 | } | |
39 | ||
40 | #else /* HAVE_LIBEXPAT */ | |
41 | ||
42 | #include "xml-support.h" | |
fd79ecee | 43 | |
e776119f | 44 | /* Internal parsing data passed to all XML callbacks. */ |
fd79ecee DJ |
45 | struct memory_map_parsing_data |
46 | { | |
47 | VEC(mem_region_s) **memory_map; | |
e776119f | 48 | char property_name[32]; |
fd79ecee DJ |
49 | }; |
50 | ||
e776119f DJ |
51 | /* Handle the start of a <memory> element. */ |
52 | ||
fd79ecee | 53 | static void |
e776119f DJ |
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) | |
fd79ecee | 57 | { |
e776119f DJ |
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; | |
61 | ||
3d2c1d41 PA |
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; | |
e776119f DJ |
65 | |
66 | mem_region_init (r); | |
67 | r->lo = *start_p; | |
68 | r->hi = r->lo + *length_p; | |
69 | r->attrib.mode = *type_p; | |
70 | r->attrib.blocksize = -1; | |
fd79ecee DJ |
71 | } |
72 | ||
e776119f DJ |
73 | /* Handle the end of a <memory> element. Verify that any necessary |
74 | children were present. */ | |
fd79ecee DJ |
75 | |
76 | static void | |
e776119f DJ |
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) | |
fd79ecee | 80 | { |
e776119f DJ |
81 | struct memory_map_parsing_data *data = user_data; |
82 | struct mem_region *r = VEC_last (mem_region_s, *data->memory_map); | |
fd79ecee | 83 | |
e776119f DJ |
84 | if (r->attrib.mode == MEM_FLASH && r->attrib.blocksize == -1) |
85 | gdb_xml_error (parser, _("Flash block size is not set")); | |
fd79ecee DJ |
86 | } |
87 | ||
e776119f DJ |
88 | /* Handle the start of a <property> element by saving the name |
89 | attribute for later. */ | |
fd79ecee DJ |
90 | |
91 | static void | |
e776119f DJ |
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) | |
fd79ecee | 95 | { |
e776119f DJ |
96 | struct memory_map_parsing_data *data = user_data; |
97 | char *name; | |
fd79ecee | 98 | |
3d2c1d41 | 99 | name = xml_find_attribute (attributes, "name")->value; |
e776119f | 100 | snprintf (data->property_name, sizeof (data->property_name), "%s", name); |
fd79ecee DJ |
101 | } |
102 | ||
e776119f | 103 | /* Handle the end of a <property> element and its value. */ |
fd79ecee | 104 | |
fd79ecee | 105 | static void |
e776119f DJ |
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) | |
fd79ecee | 109 | { |
e776119f DJ |
110 | struct memory_map_parsing_data *data = user_data; |
111 | char *name = data->property_name; | |
fd79ecee | 112 | |
e776119f | 113 | if (strcmp (name, "blocksize") == 0) |
fd79ecee | 114 | { |
e776119f | 115 | struct mem_region *r = VEC_last (mem_region_s, *data->memory_map); |
fd79ecee | 116 | |
e776119f DJ |
117 | r->attrib.blocksize = gdb_xml_parse_ulongest (parser, body_text); |
118 | } | |
119 | else | |
120 | gdb_xml_debug (parser, _("Unknown property \"%s\""), name); | |
fd79ecee DJ |
121 | } |
122 | ||
e776119f DJ |
123 | /* Discard the constructed memory map (if an error occurs). */ |
124 | ||
fd79ecee DJ |
125 | static void |
126 | clear_result (void *p) | |
127 | { | |
128 | VEC(mem_region_s) **result = p; | |
129 | VEC_free (mem_region_s, *result); | |
130 | *result = NULL; | |
131 | } | |
132 | ||
e776119f DJ |
133 | /* The allowed elements and attributes for an XML memory map. */ |
134 | ||
135 | const struct gdb_xml_attribute property_attributes[] = { | |
136 | { "name", GDB_XML_AF_NONE, NULL, NULL }, | |
137 | { NULL, GDB_XML_AF_NONE, NULL, NULL } | |
138 | }; | |
139 | ||
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 } | |
145 | }; | |
146 | ||
147 | const struct gdb_xml_enum memory_type_enum[] = { | |
148 | { "ram", MEM_RW }, | |
149 | { "rom", MEM_RO }, | |
150 | { "flash", MEM_FLASH }, | |
151 | { NULL, 0 } | |
152 | }; | |
153 | ||
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 } | |
159 | }; | |
160 | ||
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 } | |
165 | }; | |
166 | ||
167 | const struct gdb_xml_element memory_map_elements[] = { | |
168 | { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE, | |
169 | NULL, NULL }, | |
170 | { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL } | |
171 | }; | |
172 | ||
fd79ecee DJ |
173 | VEC(mem_region_s) * |
174 | parse_memory_map (const char *memory_map) | |
175 | { | |
176 | VEC(mem_region_s) *result = NULL; | |
efc0eabd | 177 | struct cleanup *back_to; |
f6071bfa | 178 | struct memory_map_parsing_data data = { NULL }; |
fd79ecee | 179 | |
fd79ecee | 180 | data.memory_map = &result; |
efc0eabd PA |
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) | |
184 | { | |
185 | /* Parsed successfully, keep the result. */ | |
186 | discard_cleanups (back_to); | |
187 | return result; | |
188 | } | |
fd79ecee | 189 | |
fd79ecee | 190 | do_cleanups (back_to); |
efc0eabd | 191 | return NULL; |
fd79ecee DJ |
192 | } |
193 | ||
194 | #endif /* HAVE_LIBEXPAT */ |