OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [memory-map.c] - Blame information for rev 834

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 227 jeremybenn
/* Routines for handling XML memory maps provided by target.
2
 
3
   Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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
9
   the Free Software Foundation; either version 3 of the License, or
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
18
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
19
 
20
#include "defs.h"
21
#include "memory-map.h"
22
#include "gdb_assert.h"
23
#include "exceptions.h"
24
 
25
#include "gdb_string.h"
26
 
27
#if !defined(HAVE_LIBEXPAT)
28
 
29
VEC(mem_region_s) *
30
parse_memory_map (const char *memory_map)
31
{
32
  static int have_warned;
33
 
34
  if (!have_warned)
35
    {
36
      have_warned = 1;
37
      warning (_("Can not parse XML memory map; XML support was disabled "
38
                 "at compile time"));
39
    }
40
 
41
  return NULL;
42
}
43
 
44
#else /* HAVE_LIBEXPAT */
45
 
46
#include "xml-support.h"
47
 
48
/* Internal parsing data passed to all XML callbacks.  */
49
struct memory_map_parsing_data
50
  {
51
    VEC(mem_region_s) **memory_map;
52
    char property_name[32];
53
  };
54
 
55
/* Handle the start of a <memory> element.  */
56
 
57
static void
58
memory_map_start_memory (struct gdb_xml_parser *parser,
59
                         const struct gdb_xml_element *element,
60
                         void *user_data, VEC(gdb_xml_value_s) *attributes)
61
{
62
  struct memory_map_parsing_data *data = user_data;
63
  struct mem_region *r = VEC_safe_push (mem_region_s, *data->memory_map, NULL);
64
  ULONGEST *start_p, *length_p, *type_p;
65
 
66
  start_p = VEC_index (gdb_xml_value_s, attributes, 0)->value;
67
  length_p = VEC_index (gdb_xml_value_s, attributes, 1)->value;
68
  type_p = VEC_index (gdb_xml_value_s, attributes, 2)->value;
69
 
70
  mem_region_init (r);
71
  r->lo = *start_p;
72
  r->hi = r->lo + *length_p;
73
  r->attrib.mode = *type_p;
74
  r->attrib.blocksize = -1;
75
}
76
 
77
/* Handle the end of a <memory> element.  Verify that any necessary
78
   children were present.  */
79
 
80
static void
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)
84
{
85
  struct memory_map_parsing_data *data = user_data;
86
  struct mem_region *r = VEC_last (mem_region_s, *data->memory_map);
87
 
88
  if (r->attrib.mode == MEM_FLASH && r->attrib.blocksize == -1)
89
    gdb_xml_error (parser, _("Flash block size is not set"));
90
}
91
 
92
/* Handle the start of a <property> element by saving the name
93
   attribute for later.  */
94
 
95
static void
96
memory_map_start_property (struct gdb_xml_parser *parser,
97
                           const struct gdb_xml_element *element,
98
                           void *user_data, VEC(gdb_xml_value_s) *attributes)
99
{
100
  struct memory_map_parsing_data *data = user_data;
101
  char *name;
102
 
103
  name = VEC_index (gdb_xml_value_s, attributes, 0)->value;
104
  snprintf (data->property_name, sizeof (data->property_name), "%s", name);
105
}
106
 
107
/* Handle the end of a <property> element and its value.  */
108
 
109
static void
110
memory_map_end_property (struct gdb_xml_parser *parser,
111
                         const struct gdb_xml_element *element,
112
                         void *user_data, const char *body_text)
113
{
114
  struct memory_map_parsing_data *data = user_data;
115
  char *name = data->property_name;
116
 
117
  if (strcmp (name, "blocksize") == 0)
118
    {
119
      struct mem_region *r = VEC_last (mem_region_s, *data->memory_map);
120
 
121
      r->attrib.blocksize = gdb_xml_parse_ulongest (parser, body_text);
122
    }
123
  else
124
    gdb_xml_debug (parser, _("Unknown property \"%s\""), name);
125
}
126
 
127
/* Discard the constructed memory map (if an error occurs).  */
128
 
129
static void
130
clear_result (void *p)
131
{
132
  VEC(mem_region_s) **result = p;
133
  VEC_free (mem_region_s, *result);
134
  *result = NULL;
135
}
136
 
137
/* The allowed elements and attributes for an XML memory map.  */
138
 
139
const struct gdb_xml_attribute property_attributes[] = {
140
  { "name", GDB_XML_AF_NONE, NULL, NULL },
141
  { NULL, GDB_XML_AF_NONE, NULL, NULL }
142
};
143
 
144
const struct gdb_xml_element memory_children[] = {
145
  { "property", property_attributes, NULL,
146
    GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
147
    memory_map_start_property, memory_map_end_property },
148
  { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
149
};
150
 
151
const struct gdb_xml_enum memory_type_enum[] = {
152
  { "ram", MEM_RW },
153
  { "rom", MEM_RO },
154
  { "flash", MEM_FLASH },
155
  { NULL, 0 }
156
};
157
 
158
const struct gdb_xml_attribute memory_attributes[] = {
159
  { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
160
  { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
161
  { "type", GDB_XML_AF_NONE, gdb_xml_parse_attr_enum, &memory_type_enum },
162
  { NULL, GDB_XML_AF_NONE, NULL, NULL }
163
};
164
 
165
const struct gdb_xml_element memory_map_children[] = {
166
  { "memory", memory_attributes, memory_children, GDB_XML_EF_REPEATABLE,
167
    memory_map_start_memory, memory_map_end_memory },
168
  { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
169
};
170
 
171
const struct gdb_xml_element memory_map_elements[] = {
172
  { "memory-map", NULL, memory_map_children, GDB_XML_EF_NONE,
173
    NULL, NULL },
174
  { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
175
};
176
 
177
VEC(mem_region_s) *
178
parse_memory_map (const char *memory_map)
179
{
180
  struct gdb_xml_parser *parser;
181
  VEC(mem_region_s) *result = NULL;
182
  struct cleanup *before_deleting_result, *back_to;
183
  struct memory_map_parsing_data data = { NULL };
184
 
185
  back_to = make_cleanup (null_cleanup, NULL);
186
  parser = gdb_xml_create_parser_and_cleanup (_("target memory map"),
187
                                              memory_map_elements, &data);
188
 
189
  /* Note: 'clear_result' will zero 'result'.  */
190
  before_deleting_result = make_cleanup (clear_result, &result);
191
  data.memory_map = &result;
192
 
193
  if (gdb_xml_parse (parser, memory_map) == 0)
194
    /* Parsed successfully, don't need to delete the result.  */
195
    discard_cleanups (before_deleting_result);
196
 
197
  do_cleanups (back_to);
198
  return result;
199
}
200
 
201
#endif /* HAVE_LIBEXPAT */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.