9 #include <mono/metadata/metadata.h>
10 #include <mono/metadata/tabledefs.h>
11 #include <mono/metadata/rawbuffer.h>
12 #include <mono/metadata/tokentype.h>
13 #include <mono/metadata/appdomain.h>
14 #include <mono/metadata/exception.h>
15 #include <mono/metadata/debug-helpers.h>
16 #include <mono/metadata/mono-debug.h>
17 #include <mono/metadata/debug-mono-symfile.h>
18 #include <mono/metadata/mono-debug-debugger.h>
19 #include <mono/metadata/mono-endian.h>
20 #include <mono/metadata/metadata-internals.h>
21 #include <mono/metadata/class-internals.h>
26 #define RANGE_TABLE_CHUNK_SIZE 256
27 #define CLASS_TABLE_CHUNK_SIZE 256
28 #define TYPE_TABLE_PTR_CHUNK_SIZE 256
29 #define TYPE_TABLE_CHUNK_SIZE 65536
32 free_method_info (MonoDebugMethodInfo *minfo)
38 get_class_name (MonoClass *klass)
40 MonoClass *nested_in = mono_class_get_nesting_type (klass);
41 const char *name_space;
43 gchar *parent_name = get_class_name (nested_in);
44 gchar *name = g_strdup_printf ("%s.%s", parent_name, mono_class_get_name (klass));
49 name_space = mono_class_get_namespace (klass);
50 return g_strdup_printf ("%s%s%s", name_space,
51 name_space [0] ? "." : "", mono_class_get_name (klass));
55 load_symfile (MonoDebugHandle *handle, MonoSymbolFile *symfile, gboolean in_the_debugger)
57 const char *ptr, *start;
62 ptr = start = symfile->raw_contents;
67 ptr += sizeof(guint64);
68 if (magic != MONO_SYMBOL_FILE_MAGIC) {
70 g_warning ("Symbol file %s is not a mono symbol file", symfile->filename);
74 version = read32(ptr);
75 ptr += sizeof(guint32);
76 if (version != MONO_SYMBOL_FILE_VERSION) {
78 g_warning ("Symbol file %s has incorrect version "
79 "(expected %d, got %ld)", symfile->filename,
80 MONO_SYMBOL_FILE_VERSION, version);
84 guid = mono_guid_to_string ((const guint8 *) ptr);
87 if (strcmp (handle->image->guid, guid)) {
89 g_warning ("Symbol file %s doesn't match image %s", symfile->filename,
94 symfile->offset_table = (MonoSymbolFileOffsetTable *) ptr;
96 symfile->method_hash = g_hash_table_new_full (
97 g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) free_method_info);
103 mono_debug_open_mono_symbol_file (MonoDebugHandle *handle, gboolean in_the_debugger)
105 MonoSymbolFile *symfile;
108 mono_debugger_lock ();
109 symfile = g_new0 (MonoSymbolFile, 1);
111 symfile->filename = g_strdup_printf ("%s.mdb", mono_image_get_filename (handle->image));
113 if ((f = fopen (symfile->filename, "rb")) > 0) {
114 struct stat stat_buf;
116 if (fstat (fileno (f), &stat_buf) < 0) {
117 if (!in_the_debugger)
118 g_warning ("stat of %s failed: %s",
119 symfile->filename, g_strerror (errno));
121 symfile->raw_contents_size = stat_buf.st_size;
122 symfile->raw_contents = mono_raw_buffer_load (fileno (f), FALSE, 0, stat_buf.st_size);
128 if (load_symfile (handle, symfile, in_the_debugger)) {
129 mono_debugger_unlock ();
131 } else if (!in_the_debugger) {
132 mono_debug_close_mono_symbol_file (symfile);
133 mono_debugger_unlock ();
137 mono_debugger_unlock ();
142 mono_debug_close_mono_symbol_file (MonoSymbolFile *symfile)
147 mono_debugger_lock ();
148 if (symfile->method_hash)
149 g_hash_table_destroy (symfile->method_hash);
151 if (symfile->raw_contents)
152 mono_raw_buffer_free ((gpointer) symfile->raw_contents);
155 mono_debugger_unlock ();
159 read_leb128 (const char *ptr, const char **rptr)
168 ret = ret | ((b & 0x7f) << shift);
170 } while ((b & 0x80) == 0x80);
179 read_string (const char *ptr)
181 int len = read_leb128 (ptr, &ptr);
182 return g_filename_from_utf8 (ptr, len, NULL, NULL, NULL);
186 * mono_debug_symfile_lookup_location:
187 * @minfo: A `MonoDebugMethodInfo' which can be retrieved by
188 * mono_debug_lookup_method().
189 * @offset: IL offset within the corresponding method's CIL code.
191 * This function is similar to mono_debug_lookup_location(), but we
192 * already looked up the method and also already did the
193 * `native address -> IL offset' mapping.
195 MonoDebugSourceLocation *
196 mono_debug_symfile_lookup_location (MonoDebugMethodInfo *minfo, guint32 offset)
198 MonoSymbolFileLineNumberEntry *lne;
199 MonoSymbolFile *symfile;
200 gchar *source_file = NULL;
204 if ((symfile = minfo->handle->symfile) == NULL)
207 mono_debugger_lock ();
209 if (read32(&(minfo->entry->_source_index))) {
210 int offset = read32(&(symfile->offset_table->_source_table_offset)) +
211 (read32(&(minfo->entry->_source_index)) - 1) * sizeof (MonoSymbolFileSourceEntry);
212 MonoSymbolFileSourceEntry *se = (MonoSymbolFileSourceEntry *) (symfile->raw_contents + offset);
214 source_file = read_string (symfile->raw_contents + read32(&(se->_name_offset)));
217 ptr = symfile->raw_contents + read32(&(minfo->entry->_line_number_table_offset));
219 count = read32(&(minfo->entry->_num_line_numbers));
220 lne = ((MonoSymbolFileLineNumberEntry *) ptr) + count - 1;
222 for (i = count - 1; i >= 0; i--, lne--) {
223 MonoDebugSourceLocation *location;
225 if (read32(&(lne->_offset)) > offset)
228 location = g_new0 (MonoDebugSourceLocation, 1);
229 location->source_file = source_file;
230 location->row = read32(&(lne->_row));
231 location->il_offset = read32(&(lne->_offset));
233 mono_debugger_unlock ();
237 mono_debugger_unlock ();
242 _mono_debug_address_from_il_offset (MonoDebugMethodJitInfo *jit, guint32 il_offset)
246 if (!jit || !jit->line_numbers)
249 for (i = jit->num_line_numbers - 1; i >= 0; i--) {
250 MonoDebugLineNumberEntry lne = jit->line_numbers [i];
252 if (lne.il_offset <= il_offset)
253 return lne.native_offset;
260 compare_method (const void *key, const void *object)
262 guint32 token = GPOINTER_TO_UINT (key);
263 MonoSymbolFileMethodIndexEntry *me = (MonoSymbolFileMethodIndexEntry*)object;
265 return token - read32(&(me->_token));
268 MonoDebugMethodInfo *
269 mono_debug_symfile_lookup_method (MonoDebugHandle *handle, MonoMethod *method)
271 MonoSymbolFileMethodEntry *me;
272 MonoSymbolFileMethodIndexEntry *first_ie, *ie;
273 MonoDebugMethodInfo *minfo;
274 MonoSymbolFile *symfile = handle->symfile;
276 if (!symfile->method_hash)
279 if (handle->image != mono_class_get_image (mono_method_get_class (method)))
282 mono_debugger_lock ();
283 first_ie = (MonoSymbolFileMethodIndexEntry *)
284 (symfile->raw_contents + read32(&(symfile->offset_table->_method_table_offset)));
286 ie = bsearch (GUINT_TO_POINTER (mono_method_get_token (method)), first_ie,
287 read32(&(symfile->offset_table->_method_count)),
288 sizeof (MonoSymbolFileMethodIndexEntry), compare_method);
291 mono_debugger_unlock ();
295 me = (MonoSymbolFileMethodEntry *) (symfile->raw_contents + read32(&(ie->_file_offset)));
297 minfo = g_new0 (MonoDebugMethodInfo, 1);
298 minfo->index = (ie - first_ie) + 1;
299 minfo->method = method;
300 minfo->handle = handle;
301 minfo->num_il_offsets = read32(&(me->_num_line_numbers));
302 minfo->il_offsets = (MonoSymbolFileLineNumberEntry *)
303 (symfile->raw_contents + read32(&(me->_line_number_table_offset)));
304 minfo->num_lexical_blocks = read32(&(me->_num_lexical_blocks));
305 minfo->lexical_blocks = (MonoSymbolFileLexicalBlockEntry *)
306 (symfile->raw_contents + read32(&(me->_lexical_block_table_offset)));
309 g_hash_table_insert (symfile->method_hash, method, minfo);
311 mono_debugger_unlock ();