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- We need to invalidate the selection area when we replace the
[mono-project.git] / mono / metadata / verify.c
blob4cb45fbe8f5ed8369b2538313238bd1dd77e9256
1
2 #include <mono/metadata/object-internals.h>
3 #include <mono/metadata/verify.h>
4 #include <mono/metadata/opcodes.h>
5 #include <mono/metadata/tabledefs.h>
6 #include <mono/metadata/reflection.h>
7 #include <mono/metadata/debug-helpers.h>
8 #include <mono/metadata/mono-endian.h>
9 #include <mono/metadata/metadata.h>
10 #include <mono/metadata/metadata-internals.h>
11 #include <mono/metadata/class-internals.h>
12 #include <mono/metadata/tokentype.h>
13 #include <string.h>
14 #include <signal.h>
15 #include <ctype.h>
16
17 /*
18 * Pull the list of opcodes
19 */
20 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
21 a = i,
22
23 enum {
24 #include "mono/cil/opcode.def"
25 LAST = 0xff
26 };
27 #undef OPDEF
28
29 void
30 mono_free_verify_list (GSList *list)
31 {
32 MonoVerifyInfo* info;
33 GSList *tmp;
34
35 for (tmp = list; tmp; tmp = tmp->next) {
36 info = tmp->data;
37 g_free (info->message);
38 g_free (info);
39 }
40 g_slist_free (list);
41 }
42
43 #define ADD_ERROR(list,msg) \
44 do { \
45 MonoVerifyInfo *vinfo = g_new (MonoVerifyInfo, 1); \
46 vinfo->status = MONO_VERIFY_ERROR; \
47 vinfo->message = (msg); \
48 (list) = g_slist_prepend ((list), vinfo); \
49 } while (0)
50
51 #define ADD_WARN(list,code,msg) \
52 do { \
53 MonoVerifyInfo *vinfo = g_new (MonoVerifyInfo, 1); \
54 vinfo->status = (code); \
55 vinfo->message = (msg); \
56 (list) = g_slist_prepend ((list), vinfo); \
57 } while (0)
58
59 static const char
60 valid_cultures[][9] = {
61 "ar-SA", "ar-IQ", "ar-EG", "ar-LY",
62 "ar-DZ", "ar-MA", "ar-TN", "ar-OM",
63 "ar-YE", "ar-SY", "ar-JO", "ar-LB",
64 "ar-KW", "ar-AE", "ar-BH", "ar-QA",
65 "bg-BG", "ca-ES", "zh-TW", "zh-CN",
66 "zh-HK", "zh-SG", "zh-MO", "cs-CZ",
67 "da-DK", "de-DE", "de-CH", "de-AT",
68 "de-LU", "de-LI", "el-GR", "en-US",
69 "en-GB", "en-AU", "en-CA", "en-NZ",
70 "en-IE", "en-ZA", "en-JM", "en-CB",
71 "en-BZ", "en-TT", "en-ZW", "en-PH",
72 "es-ES-Ts", "es-MX", "es-ES-Is", "es-GT",
73 "es-CR", "es-PA", "es-DO", "es-VE",
74 "es-CO", "es-PE", "es-AR", "es-EC",
75 "es-CL", "es-UY", "es-PY", "es-BO",
76 "es-SV", "es-HN", "es-NI", "es-PR",
77 "Fi-FI", "fr-FR", "fr-BE", "fr-CA",
78 "Fr-CH", "fr-LU", "fr-MC", "he-IL",
79 "hu-HU", "is-IS", "it-IT", "it-CH",
80 "Ja-JP", "ko-KR", "nl-NL", "nl-BE",
81 "nb-NO", "nn-NO", "pl-PL", "pt-BR",
82 "pt-PT", "ro-RO", "ru-RU", "hr-HR",
83 "Lt-sr-SP", "Cy-sr-SP", "sk-SK", "sq-AL",
84 "sv-SE", "sv-FI", "th-TH", "tr-TR",
85 "ur-PK", "id-ID", "uk-UA", "be-BY",
86 "sl-SI", "et-EE", "lv-LV", "lt-LT",
87 "fa-IR", "vi-VN", "hy-AM", "Lt-az-AZ",
88 "Cy-az-AZ",
89 "eu-ES", "mk-MK", "af-ZA",
90 "ka-GE", "fo-FO", "hi-IN", "ms-MY",
91 "ms-BN", "kk-KZ", "ky-KZ", "sw-KE",
92 "Lt-uz-UZ", "Cy-uz-UZ", "tt-TA", "pa-IN",
93 "gu-IN", "ta-IN", "te-IN", "kn-IN",
94 "mr-IN", "sa-IN", "mn-MN", "gl-ES",
95 "kok-IN", "syr-SY", "div-MV"
96 };
97
98 static int
99 is_valid_culture (const char *cname)
100 {
101 int i;
102 int found;
103
104 found = *cname == 0;
105 for (i = 0; i < G_N_ELEMENTS (valid_cultures); ++i) {
106 if (g_strcasecmp (valid_cultures [i], cname)) {
107 found = 1;
108 break;
109 }
110 }
111 return found;
112 }
113
114 static int
115 is_valid_assembly_flags (guint32 flags) {
116 /* Metadata: 22.1.2 */
117 flags &= ~(0x8000 | 0x4000); /* ignore reserved bits 0x0030? */
118 return ((flags == 1) || (flags == 0));
119 }
120
121 static int
122 is_valid_blob (MonoImage *image, guint32 blob_index, int notnull)
123 {
124 guint32 size;
125 const char *p, *blob_end;
126
127 if (blob_index >= image->heap_blob.size)
128 return 0;
129 p = mono_metadata_blob_heap (image, blob_index);
130 size = mono_metadata_decode_blob_size (p, &blob_end);
131 if (blob_index + size + (blob_end-p) > image->heap_blob.size)
132 return 0;
133 if (notnull && !size)
134 return 0;
135 return 1;
136 }
137
138 static const char*
139 is_valid_string (MonoImage *image, guint32 str_index, int notnull)
140 {
141 const char *p, *blob_end, *res;
142
143 if (str_index >= image->heap_strings.size)
144 return NULL;
145 res = p = mono_metadata_string_heap (image, str_index);
146 blob_end = mono_metadata_string_heap (image, image->heap_strings.size - 1);
147 if (notnull && !*p)
148 return 0;
149 /*
150 * FIXME: should check it's a valid utf8 string, too.
151 */
152 while (p <= blob_end) {
153 if (!*p)
154 return res;
155 ++p;
156 }
157 return *p? NULL: res;
158 }
159
160 static int
161 is_valid_cls_ident (const char *p)
162 {
163 /*
164 * FIXME: we need the full unicode glib support for this.
165 * Check: http://www.unicode.org/unicode/reports/tr15/Identifier.java
166 * We do the lame thing for now.
167 */
168 if (!isalpha (*p))
169 return 0;
170 ++p;
171 while (*p) {
172 if (!isalnum (*p) && *p != '_')
173 return 0;
174 ++p;
175 }
176 return 1;
177 }
178
179 static int
180 is_valid_filename (const char *p)
181 {
182 if (!*p)
183 return 0;
184 return strpbrk (p, "\\//:")? 0: 1;
185 }
186
187 static GSList*
188 verify_assembly_table (MonoImage *image, GSList *list, int level)
189 {
190 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLY];
191 guint32 cols [MONO_ASSEMBLY_SIZE];
192 const char *p;
193
194 if (level & MONO_VERIFY_ERROR) {
195 if (t->rows > 1)
196 ADD_ERROR (list, g_strdup ("Assembly table may only have 0 or 1 rows"));
197 mono_metadata_decode_row (t, 0, cols, MONO_ASSEMBLY_SIZE);
198
199 switch (cols [MONO_ASSEMBLY_HASH_ALG]) {
200 case ASSEMBLY_HASH_NONE:
201 case ASSEMBLY_HASH_MD5:
202 case ASSEMBLY_HASH_SHA1:
203 break;
204 default:
205 ADD_ERROR (list, g_strdup_printf ("Hash algorithm 0x%x unknown", cols [MONO_ASSEMBLY_HASH_ALG]));
206 }
207
208 if (!is_valid_assembly_flags (cols [MONO_ASSEMBLY_FLAGS]))
209 ADD_ERROR (list, g_strdup_printf ("Invalid flags in assembly: 0x%x", cols [MONO_ASSEMBLY_FLAGS]));
210
211 if (!is_valid_blob (image, cols [MONO_ASSEMBLY_PUBLIC_KEY], FALSE))
212 ADD_ERROR (list, g_strdup ("Assembly public key is an invalid index"));
213
214 if (!(p = is_valid_string (image, cols [MONO_ASSEMBLY_NAME], TRUE))) {
215 ADD_ERROR (list, g_strdup ("Assembly name is invalid"));
216 } else {
217 if (strpbrk (p, ":\\/."))
218 ADD_ERROR (list, g_strdup_printf ("Assembly name `%s' contains invalid chars", p));
219 }
220
221 if (!(p = is_valid_string (image, cols [MONO_ASSEMBLY_CULTURE], FALSE))) {
222 ADD_ERROR (list, g_strdup ("Assembly culture is an invalid index"));
223 } else {
224 if (!is_valid_culture (p))
225 ADD_ERROR (list, g_strdup_printf ("Assembly culture `%s' is invalid", p));
226 }
227 }
228 return list;
229 }
230
231 static GSList*
232 verify_assemblyref_table (MonoImage *image, GSList *list, int level)
233 {
234 MonoTableInfo *t = &image->tables [MONO_TABLE_ASSEMBLYREF];
235 guint32 cols [MONO_ASSEMBLYREF_SIZE];
236 const char *p;
237 int i;
238
239 if (level & MONO_VERIFY_ERROR) {
240 for (i = 0; i < t->rows; ++i) {
241 mono_metadata_decode_row (t, i, cols, MONO_ASSEMBLYREF_SIZE);
242 if (!is_valid_assembly_flags (cols [MONO_ASSEMBLYREF_FLAGS]))
243 ADD_ERROR (list, g_strdup_printf ("Invalid flags in assemblyref row %d: 0x%x", i + 1, cols [MONO_ASSEMBLY_FLAGS]));
244
245 if (!is_valid_blob (image, cols [MONO_ASSEMBLYREF_PUBLIC_KEY], FALSE))
246 ADD_ERROR (list, g_strdup_printf ("AssemblyRef public key in row %d is an invalid index", i + 1));
247
248 if (!(p = is_valid_string (image, cols [MONO_ASSEMBLYREF_CULTURE], FALSE))) {
249 ADD_ERROR (list, g_strdup_printf ("AssemblyRef culture in row %d is invalid", i + 1));
250 } else {
251 if (!is_valid_culture (p))
252 ADD_ERROR (list, g_strdup_printf ("AssemblyRef culture `%s' in row %d is invalid", p, i + 1));
253 }
254
255 if (cols [MONO_ASSEMBLYREF_HASH_VALUE] && !is_valid_blob (image, cols [MONO_ASSEMBLYREF_HASH_VALUE], TRUE))
256 ADD_ERROR (list, g_strdup_printf ("AssemblyRef hash value in row %d is invalid or not null and empty", i + 1));
257 }
258 }
259 if (level & MONO_VERIFY_WARNING) {
260 /* check for duplicated rows */
261 for (i = 0; i < t->rows; ++i) {
262 }
263 }
264 return list;
265 }
266
267 static GSList*
268 verify_class_layout_table (MonoImage *image, GSList *list, int level)
269 {
270 MonoTableInfo *t = &image->tables [MONO_TABLE_CLASSLAYOUT];
271 MonoTableInfo *tdef = &image->tables [MONO_TABLE_TYPEDEF];
272 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
273 guint32 value, i;
274
275 if (level & MONO_VERIFY_ERROR) {
276 for (i = 0; i < t->rows; ++i) {
277 mono_metadata_decode_row (t, i, cols, MONO_CLASS_LAYOUT_SIZE);
278
279 if (cols [MONO_CLASS_LAYOUT_PARENT] > tdef->rows || !cols [MONO_CLASS_LAYOUT_PARENT]) {
280 ADD_ERROR (list, g_strdup_printf ("Parent in class layout is invalid in row %d", i + 1));
281 } else {
282 value = mono_metadata_decode_row_col (tdef, cols [MONO_CLASS_LAYOUT_PARENT] - 1, MONO_TYPEDEF_FLAGS);
283 if (value & TYPE_ATTRIBUTE_INTERFACE)
284 ADD_ERROR (list, g_strdup_printf ("Parent in class layout row %d is an interface", i + 1));
285 if (value & TYPE_ATTRIBUTE_AUTO_LAYOUT)
286 ADD_ERROR (list, g_strdup_printf ("Parent in class layout row %d is AutoLayout", i + 1));
287 if (value & TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT) {
288 switch (cols [MONO_CLASS_LAYOUT_PACKING_SIZE]) {
289 case 0: case 1: case 2: case 4: case 8: case 16:
290 case 32: case 64: case 128: break;
291 default:
292 ADD_ERROR (list, g_strdup_printf ("Packing size %d in class layout row %d is invalid", cols [MONO_CLASS_LAYOUT_PACKING_SIZE], i + 1));
293 }
294 } else if (value & TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
295 /*
296 * FIXME: LAMESPEC: it claims it must be 0 (it's 1, instead).
297 if (cols [MONO_CLASS_LAYOUT_PACKING_SIZE])
298 ADD_ERROR (list, g_strdup_printf ("Packing size %d in class layout row %d is invalid with explicit layout", cols [MONO_CLASS_LAYOUT_PACKING_SIZE], i + 1));
299 */
300 }
301 /*
302 * FIXME: we need to check that if class size != 0,
303 * it needs to be greater than the class calculated size.
304 * If parent is a valuetype it also needs to be smaller than
305 * 1 MByte (0x100000 bytes).
306 * To do both these checks we need to load the referenced
307 * assemblies, though (the spec claims we didn't have to, bah).
308 */
309 /*
310 * We need to check that the parent types have the samme layout
311 * type as well.
312 */
313 }
314 }
315 }
316
317 return list;
318 }
319
320 static GSList*
321 verify_constant_table (MonoImage *image, GSList *list, int level)
322 {
323 MonoTableInfo *t = &image->tables [MONO_TABLE_CONSTANT];
324 guint32 cols [MONO_CONSTANT_SIZE];
325 guint32 value, i;
326 GHashTable *dups = g_hash_table_new (NULL, NULL);
327
328 for (i = 0; i < t->rows; ++i) {
329 mono_metadata_decode_row (t, i, cols, MONO_CONSTANT_SIZE);
330
331 if (level & MONO_VERIFY_ERROR)
332 if (g_hash_table_lookup (dups, GUINT_TO_POINTER (cols [MONO_CONSTANT_PARENT])))
333 ADD_ERROR (list, g_strdup_printf ("Parent 0x%08x is duplicated in Constant row %d", cols [MONO_CONSTANT_PARENT], i + 1));
334 g_hash_table_insert (dups, GUINT_TO_POINTER (cols [MONO_CONSTANT_PARENT]),
335 GUINT_TO_POINTER (cols [MONO_CONSTANT_PARENT]));
336
337 switch (cols [MONO_CONSTANT_TYPE]) {
338 case MONO_TYPE_U1: /* LAMESPEC: it says I1...*/
339 case MONO_TYPE_U2:
340 case MONO_TYPE_U4:
341 case MONO_TYPE_U8:
342 if (level & MONO_VERIFY_CLS)
343 ADD_WARN (list, MONO_VERIFY_CLS, g_strdup_printf ("Type 0x%x not CLS compliant in Constant row %d", cols [MONO_CONSTANT_TYPE], i + 1));
344 case MONO_TYPE_BOOLEAN:
345 case MONO_TYPE_CHAR:
346 case MONO_TYPE_I1:
347 case MONO_TYPE_I2:
348 case MONO_TYPE_I4:
349 case MONO_TYPE_I8:
350 case MONO_TYPE_R4:
351 case MONO_TYPE_R8:
352 case MONO_TYPE_STRING:
353 case MONO_TYPE_CLASS:
354 break;
355 default:
356 if (level & MONO_VERIFY_ERROR)
357 ADD_ERROR (list, g_strdup_printf ("Type 0x%x is invalid in Constant row %d", cols [MONO_CONSTANT_TYPE], i + 1));
358 }
359 if (level & MONO_VERIFY_ERROR) {
360 value = cols [MONO_CONSTANT_PARENT] >> MONO_HASCONSTANT_BITS;
361 switch (cols [MONO_CONSTANT_PARENT] & MONO_HASCONSTANT_MASK) {
362 case MONO_HASCONSTANT_FIEDDEF:
363 if (value > image->tables [MONO_TABLE_FIELD].rows)
364 ADD_ERROR (list, g_strdup_printf ("Parent (field) is invalid in Constant row %d", i + 1));
365 break;
366 case MONO_HASCONSTANT_PARAM:
367 if (value > image->tables [MONO_TABLE_PARAM].rows)
368 ADD_ERROR (list, g_strdup_printf ("Parent (param) is invalid in Constant row %d", i + 1));
369 break;
370 case MONO_HASCONSTANT_PROPERTY:
371 if (value > image->tables [MONO_TABLE_PROPERTY].rows)
372 ADD_ERROR (list, g_strdup_printf ("Parent (property) is invalid in Constant row %d", i + 1));
373 break;
374 default:
375 ADD_ERROR (list, g_strdup_printf ("Parent is invalid in Constant row %d", i + 1));
376 break;
377 }
378 }
379 if (level & MONO_VERIFY_CLS) {
380 /*
381 * FIXME: verify types is consistent with the enum type
382 * is parent is an enum.
383 */
384 }
385 }
386 g_hash_table_destroy (dups);
387 return list;
388 }
389
390 static GSList*
391 verify_event_map_table (MonoImage *image, GSList *list, int level)
392 {
393 MonoTableInfo *t = &image->tables [MONO_TABLE_EVENTMAP];
394 guint32 cols [MONO_EVENT_MAP_SIZE];
395 guint32 i, last_event;
396 GHashTable *dups = g_hash_table_new (NULL, NULL);
397
398 last_event = 0;
399
400 for (i = 0; i < t->rows; ++i) {
401 mono_metadata_decode_row (t, i, cols, MONO_EVENT_MAP_SIZE);
402 if (level & MONO_VERIFY_ERROR)
403 if (g_hash_table_lookup (dups, GUINT_TO_POINTER (cols [MONO_EVENT_MAP_PARENT])))
404 ADD_ERROR (list, g_strdup_printf ("Parent 0x%08x is duplicated in Event Map row %d", cols [MONO_EVENT_MAP_PARENT], i + 1));
405 g_hash_table_insert (dups, GUINT_TO_POINTER (cols [MONO_EVENT_MAP_PARENT]),
406 GUINT_TO_POINTER (cols [MONO_EVENT_MAP_PARENT]));
407 if (level & MONO_VERIFY_ERROR) {
408 if (cols [MONO_EVENT_MAP_PARENT] > image->tables [MONO_TABLE_TYPEDEF].rows)
409 ADD_ERROR (list, g_strdup_printf ("Parent 0x%08x is invalid in Event Map row %d", cols [MONO_EVENT_MAP_PARENT], i + 1));
410 if (cols [MONO_EVENT_MAP_EVENTLIST] > image->tables [MONO_TABLE_EVENT].rows)
411 ADD_ERROR (list, g_strdup_printf ("EventList 0x%08x is invalid in Event Map row %d", cols [MONO_EVENT_MAP_EVENTLIST], i + 1));
412
413 if (cols [MONO_EVENT_MAP_EVENTLIST] <= last_event)
414 ADD_ERROR (list, g_strdup_printf ("EventList overlap in Event Map row %d", i + 1));
415 last_event = cols [MONO_EVENT_MAP_EVENTLIST];
416 }
417 }
418
419 g_hash_table_destroy (dups);
420 return list;
421 }
422
423 static GSList*
424 verify_event_table (MonoImage *image, GSList *list, int level)
425 {
426 MonoTableInfo *t = &image->tables [MONO_TABLE_EVENT];
427 guint32 cols [MONO_EVENT_SIZE];
428 const char *p;
429 guint32 value, i;
430
431 for (i = 0; i < t->rows; ++i) {
432 mono_metadata_decode_row (t, i, cols, MONO_EVENT_SIZE);
433
434 if (cols [MONO_EVENT_FLAGS] & ~(EVENT_SPECIALNAME|EVENT_RTSPECIALNAME)) {
435 if (level & MONO_VERIFY_ERROR)
436 ADD_ERROR (list, g_strdup_printf ("Flags 0x%04x invalid in Event row %d", cols [MONO_EVENT_FLAGS], i + 1));
437 }
438 if (!(p = is_valid_string (image, cols [MONO_EVENT_NAME], TRUE))) {
439 if (level & MONO_VERIFY_ERROR)
440 ADD_ERROR (list, g_strdup_printf ("Invalid name in Event row %d", i + 1));
441 } else {
442 if (level & MONO_VERIFY_CLS) {
443 if (!is_valid_cls_ident (p))
444 ADD_WARN (list, MONO_VERIFY_CLS, g_strdup_printf ("Invalid CLS name '%s` in Event row %d", p, i + 1));
445 }
446 }
447
448 if (level & MONO_VERIFY_ERROR && cols [MONO_EVENT_TYPE]) {
449 value = cols [MONO_EVENT_TYPE] >> MONO_TYPEDEFORREF_BITS;
450 switch (cols [MONO_EVENT_TYPE] & MONO_TYPEDEFORREF_MASK) {
451 case MONO_TYPEDEFORREF_TYPEDEF:
452 if (!value || value > image->tables [MONO_TABLE_TYPEDEF].rows)
453 ADD_ERROR (list, g_strdup_printf ("Type invalid in Event row %d", i + 1));
454 break;
455 case MONO_TYPEDEFORREF_TYPEREF:
456 if (!value || value > image->tables [MONO_TABLE_TYPEREF].rows)
457 ADD_ERROR (list, g_strdup_printf ("Type invalid in Event row %d", i + 1));
458 break;
459 case MONO_TYPEDEFORREF_TYPESPEC:
460 if (!value || value > image->tables [MONO_TABLE_TYPESPEC].rows)
461 ADD_ERROR (list, g_strdup_printf ("Type invalid in Event row %d", i + 1));
462 break;
463 default:
464 ADD_ERROR (list, g_strdup_printf ("Type invalid in Event row %d", i + 1));
465 }
466 }
467 /*
468 * FIXME: check that there is 1 add and remove row in methodsemantics
469 * and 0 or 1 raise and 0 or more other (maybe it's better to check for
470 * these while checking methodsemantics).
471 * check for duplicated names for the same type [ERROR]
472 * check for CLS duplicate names for the same type [CLS]
473 */
474 }
475 return list;
476 }
477
478 static GSList*
479 verify_field_table (MonoImage *image, GSList *list, int level)
480 {
481 MonoTableInfo *t = &image->tables [MONO_TABLE_FIELD];
482 guint32 cols [MONO_FIELD_SIZE];
483 const char *p;
484 guint32 i, flags;
485
486 for (i = 0; i < t->rows; ++i) {
487 mono_metadata_decode_row (t, i, cols, MONO_FIELD_SIZE);
488 /*
489 * Check this field has only one owner and that the owner is not
490 * an interface (done in verify_typedef_table() )
491 */
492 flags = cols [MONO_FIELD_FLAGS];
493 switch (flags & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK) {
494 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
495 case FIELD_ATTRIBUTE_PRIVATE:
496 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
497 case FIELD_ATTRIBUTE_ASSEMBLY:
498 case FIELD_ATTRIBUTE_FAMILY:
499 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
500 case FIELD_ATTRIBUTE_PUBLIC:
501 break;
502 default:
503 if (level & MONO_VERIFY_ERROR)
504 ADD_ERROR (list, g_strdup_printf ("Invalid access mask in Field row %d", i + 1));
505 break;
506 }
507 if (level & MONO_VERIFY_ERROR) {
508 if ((flags & FIELD_ATTRIBUTE_LITERAL) && (flags & FIELD_ATTRIBUTE_INIT_ONLY))
509 ADD_ERROR (list, g_strdup_printf ("Literal and InitOnly cannot be both set in Field row %d", i + 1));
510 if ((flags & FIELD_ATTRIBUTE_LITERAL) && !(flags & FIELD_ATTRIBUTE_STATIC))
511 ADD_ERROR (list, g_strdup_printf ("Literal needs also Static set in Field row %d", i + 1));
512 if ((flags & FIELD_ATTRIBUTE_RT_SPECIAL_NAME) && !(flags & FIELD_ATTRIBUTE_SPECIAL_NAME))
513 ADD_ERROR (list, g_strdup_printf ("RTSpecialName needs also SpecialName set in Field row %d", i + 1));
514 /*
515 * FIXME: check there is only ono owner in the respective table.
516 * if (flags & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
517 * if (flags & FIELD_ATTRIBUTE_HAS_DEFAULT)
518 * if (flags & FIELD_ATTRIBUTE_HAS_FIELD_RVA)
519 */
520 }
521 if (!(p = is_valid_string (image, cols [MONO_FIELD_NAME], TRUE))) {
522 if (level & MONO_VERIFY_ERROR)
523 ADD_ERROR (list, g_strdup_printf ("Invalid name in Field row %d", i + 1));
524 } else {
525 if (level & MONO_VERIFY_CLS) {
526 if (!is_valid_cls_ident (p))
527 ADD_WARN (list, MONO_VERIFY_CLS, g_strdup_printf ("Invalid CLS name '%s` in Field row %d", p, i + 1));
528 }
529 }
530 /*
531 * check signature.
532 * if owner is module needs to be static, access mask needs to be compilercontrolled,
533 * public or private (not allowed in cls mode).
534 * if owner is an enum ...
535 */
536
537
538 }
539 return list;
540 }
541
542 static GSList*
543 verify_file_table (MonoImage *image, GSList *list, int level)
544 {
545 MonoTableInfo *t = &image->tables [MONO_TABLE_FILE];
546 guint32 cols [MONO_FILE_SIZE];
547 const char *p;
548 guint32 i;
549 GHashTable *dups = g_hash_table_new (g_str_hash, g_str_equal);
550
551 for (i = 0; i < t->rows; ++i) {
552 mono_metadata_decode_row (t, i, cols, MONO_FILE_SIZE);
553 if (level & MONO_VERIFY_ERROR) {
554 if (cols [MONO_FILE_FLAGS] != FILE_CONTAINS_METADATA && cols [MONO_FILE_FLAGS] != FILE_CONTAINS_NO_METADATA)
555 ADD_ERROR (list, g_strdup_printf ("Invalid flags in File row %d", i + 1));
556 if (!is_valid_blob (image, cols [MONO_FILE_HASH_VALUE], TRUE))
557 ADD_ERROR (list, g_strdup_printf ("File hash value in row %d is invalid or not null and empty", i + 1));
558 }
559 if (!(p = is_valid_string (image, cols [MONO_FILE_NAME], TRUE))) {
560 if (level & MONO_VERIFY_ERROR)
561 ADD_ERROR (list, g_strdup_printf ("Invalid name in File row %d", i + 1));
562 } else {
563 if (level & MONO_VERIFY_ERROR) {
564 if (!is_valid_filename (p))
565 ADD_ERROR (list, g_strdup_printf ("Invalid name '%s` in File row %d", p, i + 1));
566 else if (g_hash_table_lookup (dups, p)) {
567 ADD_ERROR (list, g_strdup_printf ("Duplicate name '%s` in File row %d", p, i + 1));
568 }
569 g_hash_table_insert (dups, (gpointer)p, (gpointer)p);
570 }
571 }
572 /*
573 * FIXME: I don't understand what this means:
574 * If this module contains a row in the Assembly table (that is, if this module "holds the manifest")
575 * then there shall not be any row in the File table for this module - i.e., no self-reference [ERROR]
576 */
577
578 }
579 if (level & MONO_VERIFY_WARNING) {
580 if (!t->rows && image->tables [MONO_TABLE_EXPORTEDTYPE].rows)
581 ADD_WARN (list, MONO_VERIFY_WARNING, g_strdup ("ExportedType table should be empty if File table is empty"));
582 }
583 g_hash_table_destroy (dups);
584 return list;
585 }
586
587 static GSList*
588 verify_moduleref_table (MonoImage *image, GSList *list, int level)
589 {
590 MonoTableInfo *t = &image->tables [MONO_TABLE_MODULEREF];
591 MonoTableInfo *tfile = &image->tables [MONO_TABLE_FILE];
592 guint32 cols [MONO_MODULEREF_SIZE];
593 const char *p, *pf;
594 guint32 found, i, j, value;
595 GHashTable *dups = g_hash_table_new (g_str_hash, g_str_equal);
596
597 for (i = 0; i < t->rows; ++i) {
598 mono_metadata_decode_row (t, i, cols, MONO_MODULEREF_SIZE);
599 if (!(p = is_valid_string (image, cols [MONO_MODULEREF_NAME], TRUE))) {
600 if (level & MONO_VERIFY_ERROR)
601 ADD_ERROR (list, g_strdup_printf ("Invalid name in ModuleRef row %d", i + 1));
602 } else {
603 if (level & MONO_VERIFY_ERROR) {
604 if (!is_valid_filename (p))
605 ADD_ERROR (list, g_strdup_printf ("Invalid name '%s` in ModuleRef row %d", p, i + 1));
606 else if (g_hash_table_lookup (dups, p)) {
607 ADD_WARN (list, MONO_VERIFY_WARNING, g_strdup_printf ("Duplicate name '%s` in ModuleRef row %d", p, i + 1));
608 g_hash_table_insert (dups, (gpointer)p, (gpointer)p);
609 found = 0;
610 for (j = 0; j < tfile->rows; ++j) {
611 value = mono_metadata_decode_row_col (tfile, j, MONO_FILE_NAME);
612 if ((pf = is_valid_string (image, value, TRUE)))
613 if (strcmp (p, pf) == 0) {
614 found = 1;
615 break;
616 }
617 }
618 if (!found)
619 ADD_ERROR (list, g_strdup_printf ("Name '%s` in ModuleRef row %d doesn't have a match in File table", p, i + 1));
620 }
621 }
622 }
623 }
624 g_hash_table_destroy (dups);
625 return list;
626 }
627
628 static GSList*
629 verify_standalonesig_table (MonoImage *image, GSList *list, int level)
630 {
631 MonoTableInfo *t = &image->tables [MONO_TABLE_STANDALONESIG];
632 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
633 const char *p;
634 guint32 i;
635
636 for (i = 0; i < t->rows; ++i) {
637 mono_metadata_decode_row (t, i, cols, MONO_STAND_ALONE_SIGNATURE_SIZE);
638 if (level & MONO_VERIFY_ERROR) {
639 if (!is_valid_blob (image, cols [MONO_STAND_ALONE_SIGNATURE], TRUE)) {
640 ADD_ERROR (list, g_strdup_printf ("Signature is invalid in StandAloneSig row %d", i + 1));
641 } else {
642 p = mono_metadata_blob_heap (image, cols [MONO_STAND_ALONE_SIGNATURE]);
643 /* FIXME: check it's a valid locals or method sig.*/
644 }
645 }
646 }
647 return list;
648 }
649
650 GSList*
651 mono_image_verify_tables (MonoImage *image, int level)
652 {
653 GSList *error_list = NULL;
654
655 error_list = verify_assembly_table (image, error_list, level);
656 /*
657 * AssemblyOS, AssemblyProcessor, AssemblyRefOs and
658 * AssemblyRefProcessor should be ignored,
659 * though we may want to emit a warning, since it should not
660 * be present in a PE file.
661 */
662 error_list = verify_assemblyref_table (image, error_list, level);
663 error_list = verify_class_layout_table (image, error_list, level);
664 error_list = verify_constant_table (image, error_list, level);
665 /*
666 * cutom attribute, declsecurity
667 */
668 error_list = verify_event_map_table (image, error_list, level);
669 error_list = verify_event_table (image, error_list, level);
670 error_list = verify_field_table (image, error_list, level);
671 error_list = verify_file_table (image, error_list, level);
672 error_list = verify_moduleref_table (image, error_list, level);
673 error_list = verify_standalonesig_table (image, error_list, level);
674
675 return g_slist_reverse (error_list);
676 }
677
678 enum {
679 TYPE_INV = 0, /* leave at 0. */
680 TYPE_I4 = 1,
681 TYPE_I8 = 2,
682 TYPE_PTR = 3,
683 TYPE_R8 = 4,
684 TYPE_MP = 5,
685 TYPE_OBJ = 6,
686 TYPE_VT = 7,
687 TYPE_MAX = 8
688 };
689
690 static const char* const
691 arg_name [TYPE_MAX] = {
692 "Invalid",
693 "Int32",
694 "Int64",
695 "IntPtr",
696 "Double",
697 "Managed Pointer",
698 "ObjRef",
699 "ValueType"
700 };
701
702 static const char
703 bin_num_table [TYPE_MAX] [TYPE_MAX] = {
704 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
705 {TYPE_INV, TYPE_I4, TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_MP, TYPE_INV, TYPE_INV},
706 {TYPE_INV, TYPE_INV, TYPE_I8, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
707 {TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_MP, TYPE_INV, TYPE_INV},
708 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_R8, TYPE_INV, TYPE_INV, TYPE_INV},
709 {TYPE_INV, TYPE_MP, TYPE_INV, TYPE_MP, TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_INV},
710 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
711 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV}
712 };
713
714 static const char
715 neg_table [] = {
716 TYPE_INV, TYPE_I4, TYPE_I8, TYPE_PTR, TYPE_R8, TYPE_INV, TYPE_INV, TYPE_INV
717 };
718
719 /* reduce the size of this table */
720 static const char
721 bin_int_table [TYPE_MAX] [TYPE_MAX] = {
722 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
723 {TYPE_INV, TYPE_I4, TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
724 {TYPE_INV, TYPE_INV, TYPE_I8, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
725 {TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
726 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
727 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
728 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
729 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV}
730 };
731
732 static const char
733 bin_comp_table [TYPE_MAX] [TYPE_MAX] = {
734 {0},
735 {0, 1, 0, 1, 0, 0, 0, 0},
736 {0, 0, 1, 0, 0, 0, 0, 0},
737 {0, 1, 0, 1, 0, 2, 0, 0},
738 {0, 0, 0, 0, 1, 0, 0, 0},
739 {0, 0, 0, 2, 0, 1, 0, 0},
740 {0, 0, 0, 0, 0, 0, 3, 0},
741 {0, 0, 0, 0, 0, 0, 0, 0},
742 };
743
744 /* reduce the size of this table */
745 static const char
746 shift_table [TYPE_MAX] [TYPE_MAX] = {
747 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
748 {TYPE_INV, TYPE_I4, TYPE_INV, TYPE_I4, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
749 {TYPE_INV, TYPE_I8, TYPE_INV, TYPE_I8, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
750 {TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_PTR, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
751 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
752 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
753 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV},
754 {TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV, TYPE_INV}
755 };
756
757 static const char
758 ldind_type [] = {
759 TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I8, TYPE_PTR, TYPE_R8, TYPE_R8, TYPE_OBJ
760 };
761
762 static const char
763 ldelem_type [] = {
764 TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I4, TYPE_I8, TYPE_PTR, TYPE_R8, TYPE_R8, TYPE_OBJ
765 };
766
767 #define ADD_INVALID(list,msg) \
768 do { \
769 MonoVerifyInfo *vinfo = g_new (MonoVerifyInfo, 1); \
770 vinfo->status = MONO_VERIFY_ERROR; \
771 vinfo->message = (msg); \
772 (list) = g_slist_prepend ((list), vinfo); \
773 /*G_BREAKPOINT ();*/ \
774 goto invalid_cil; \
775 } while (0)
776
777 #define CHECK_STACK_UNDERFLOW(num) \
778 do { \
779 if (cur_stack < (num)) \
780 ADD_INVALID (list, g_strdup_printf ("Stack underflow at 0x%04x (%d items instead of %d)", ip_offset, cur_stack, (num))); \
781 } while (0)
782
783 #define CHECK_STACK_OVERFLOW() \
784 do { \
785 if (cur_stack >= max_stack) \
786 ADD_INVALID (list, g_strdup_printf ("Maxstack exceeded at 0x%04x", ip_offset)); \
787 } while (0)
788
789 enum {
790 PREFIX_UNALIGNED = 1,
791 PREFIX_VOLATILE = 2,
792 PREFIX_TAIL = 4,
793 PREFIX_ADDR_MASK = 3,
794 PREFIX_FUNC_MASK = 4
795 };
796
797 enum {
798 CODE_SEEN = 1
799 };
800
801 typedef struct {
802 MonoType *type;
803 int stype;
804 } ILStackDesc;
805
806 typedef struct {
807 ILStackDesc *stack;
808 guint16 stack_count;
809 guint16 flags;
810 } ILCodeDesc;
811
812 static void
813 type_to_eval_stack_type (MonoType *type, ILStackDesc *stack, int take_addr) {
814 int t = type->type;
815
816 stack->type = type;
817 if (type->byref || take_addr) { /* fix double addr issue */
818 stack->stype = TYPE_MP;
819 return;
820 }
821
822 handle_enum:
823 switch (t) {
824 case MONO_TYPE_I1:
825 case MONO_TYPE_U1:
826 case MONO_TYPE_BOOLEAN:
827 case MONO_TYPE_I2:
828 case MONO_TYPE_U2:
829 case MONO_TYPE_CHAR:
830 case MONO_TYPE_I4:
831 case MONO_TYPE_U4:
832 stack->stype = TYPE_I4;
833 return;
834 case MONO_TYPE_I:
835 case MONO_TYPE_U:
836 case MONO_TYPE_PTR:
837 stack->stype = TYPE_PTR;
838 return;
839 case MONO_TYPE_CLASS:
840 case MONO_TYPE_STRING:
841 case MONO_TYPE_OBJECT:
842 case MONO_TYPE_SZARRAY:
843 case MONO_TYPE_ARRAY:
844 stack->stype = TYPE_OBJ;
845 return;
846 case MONO_TYPE_I8:
847 case MONO_TYPE_U8:
848 stack->stype = TYPE_I8;
849 return;
850 case MONO_TYPE_R4:
851 case MONO_TYPE_R8:
852 stack->stype = TYPE_R8;
853 return;
854 case MONO_TYPE_VALUETYPE:
855 if (type->data.klass->enumtype) {
856 t = type->data.klass->enum_basetype->type;
857 goto handle_enum;
858 } else {
859 stack->stype = TYPE_VT;
860 return;
861 }
862 default:
863 g_error ("unknown type %02x in eval stack type", type->type);
864 }
865 return;
866 }
867
868 static int
869 type_from_op (int ins, ILStackDesc *arg) {
870 switch (ins) {
871 /* binops */
872 case CEE_ADD:
873 case CEE_SUB:
874 case CEE_MUL:
875 case CEE_DIV:
876 case CEE_REM:
877 /* FIXME: check unverifiable args for TYPE_MP */
878 return arg->stype = bin_num_table [arg->stype] [arg [1].stype];
879 case CEE_DIV_UN:
880 case CEE_REM_UN:
881 case CEE_AND:
882 case CEE_OR:
883 case CEE_XOR:
884 return arg->stype = bin_int_table [arg->stype] [arg [1].stype];
885 case CEE_SHL:
886 case CEE_SHR:
887 case CEE_SHR_UN:
888 return arg->stype = shift_table [arg->stype] [arg [1].stype];
889 case CEE_BEQ_S:
890 case CEE_BGE_S:
891 case CEE_BGT_S:
892 case CEE_BLE_S:
893 case CEE_BLT_S:
894 case CEE_BNE_UN_S:
895 case CEE_BGE_UN_S:
896 case CEE_BGT_UN_S:
897 case CEE_BLE_UN_S:
898 case CEE_BLT_UN_S:
899 case CEE_BEQ:
900 case CEE_BGE:
901 case CEE_BGT:
902 case CEE_BLE:
903 case CEE_BLT:
904 case CEE_BNE_UN:
905 case CEE_BGE_UN:
906 case CEE_BGT_UN:
907 case CEE_BLE_UN:
908 case CEE_BLT_UN:
909 /* FIXME: handle some specifics with ins->next->type */
910 return bin_comp_table [arg->stype] [arg [1].stype] ? TYPE_I4: TYPE_INV;
911 case 256+CEE_CEQ:
912 case 256+CEE_CGT:
913 case 256+CEE_CGT_UN:
914 case 256+CEE_CLT:
915 case 256+CEE_CLT_UN:
916 return arg->stype = bin_comp_table [arg->stype] [arg [1].stype] ? TYPE_I4: TYPE_INV;
917 /* unops */
918 case CEE_NEG:
919 return arg->stype = neg_table [arg->stype];
920 case CEE_NOT:
921 if (arg->stype >= TYPE_I4 && arg->stype <= TYPE_PTR)
922 return arg->stype;
923 else
924 return arg->stype = TYPE_INV;
925 case CEE_CONV_I1:
926 case CEE_CONV_U1:
927 case CEE_CONV_I2:
928 case CEE_CONV_U2:
929 case CEE_CONV_I4:
930 case CEE_CONV_U4:
931 case CEE_CONV_OVF_I1:
932 case CEE_CONV_OVF_U1:
933 case CEE_CONV_OVF_I2:
934 case CEE_CONV_OVF_U2:
935 case CEE_CONV_OVF_I4:
936 case CEE_CONV_OVF_U4:
937 case CEE_CONV_OVF_I1_UN:
938 case CEE_CONV_OVF_U1_UN:
939 case CEE_CONV_OVF_I2_UN:
940 case CEE_CONV_OVF_U2_UN:
941 case CEE_CONV_OVF_I4_UN:
942 case CEE_CONV_OVF_U4_UN:
943 if (arg->stype == TYPE_INV || arg->stype >= TYPE_MP)
944 return arg->stype = TYPE_INV;
945 return arg->stype = TYPE_I4;
946 case CEE_CONV_I:
947 case CEE_CONV_U:
948 case CEE_CONV_OVF_I:
949 case CEE_CONV_OVF_U:
950 case CEE_CONV_OVF_I_UN:
951 case CEE_CONV_OVF_U_UN:
952 if (arg->stype == TYPE_INV || arg->stype == TYPE_VT)
953 return arg->stype = TYPE_INV;
954 return arg->stype = TYPE_PTR;
955 case CEE_CONV_I8:
956 case CEE_CONV_U8:
957 case CEE_CONV_OVF_I8:
958 case CEE_CONV_OVF_U8:
959 case CEE_CONV_OVF_I8_UN:
960 case CEE_CONV_OVF_U8_UN:
961 return arg->stype = TYPE_I8;
962 case CEE_CONV_R4:
963 case CEE_CONV_R8:
964 return arg->stype = TYPE_R8;
965 default:
966 g_error ("opcode 0x%04x not handled in type from op", ins);
967 break;
968 }
969 return FALSE;
970 }
971
972 static int
973 in_any_block (MonoMethodHeader *header, guint offset)
974 {
975 int i;
976 MonoExceptionClause *clause;
977
978 for (i = 0; i < header->num_clauses; ++i) {
979 clause = &header->clauses [i];
980 if (MONO_OFFSET_IN_CLAUSE (clause, offset))
981 return 1;
982 if (MONO_OFFSET_IN_HANDLER (clause, offset))
983 return 1;
984 /* need to check filter ... */
985 }
986 return 0;
987 }
988
989 static int
990 in_same_block (MonoMethodHeader *header, guint offset, guint target)
991 {
992 int i;
993 MonoExceptionClause *clause;
994
995 for (i = 0; i < header->num_clauses; ++i) {
996 clause = &header->clauses [i];
997 if (MONO_OFFSET_IN_CLAUSE (clause, offset) && !MONO_OFFSET_IN_CLAUSE (clause, target))
998 return 0;
999 if (MONO_OFFSET_IN_HANDLER (clause, offset) && !MONO_OFFSET_IN_HANDLER (clause, target))
1000 return 0;
1001 /* need to check filter ... */
1002 }
1003 return 1;
1004 }
1005
1006 /*
1007 * A leave can't escape a finally block
1008 */
1009 static int
1010 is_correct_leave (MonoMethodHeader *header, guint offset, guint target)
1011 {
1012 int i;
1013 MonoExceptionClause *clause;
1014
1015 for (i = 0; i < header->num_clauses; ++i) {
1016 clause = &header->clauses [i];
1017 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY && MONO_OFFSET_IN_HANDLER (clause, offset) && !MONO_OFFSET_IN_HANDLER (clause, target))
1018 return 0;
1019 /* need to check filter ... */
1020 }
1021 return 1;
1022 }
1023
1024 static int
1025 can_merge_stack (ILCodeDesc *a, ILCodeDesc *b)
1026 {
1027 if (!b->flags & CODE_SEEN) {
1028 b->flags |= CODE_SEEN;
1029 b->stack_count = a->stack_count;
1030 /* merge types */
1031 return 1;
1032 }
1033 if (a->stack_count != b->stack_count)
1034 return 0;
1035 /* merge types */
1036 return 1;
1037 }
1038
1039 static int
1040 is_valid_bool_arg (ILStackDesc *arg)
1041 {
1042 switch (arg->stype) {
1043 case TYPE_I4:
1044 case TYPE_I8:
1045 case TYPE_PTR:
1046 case TYPE_MP:
1047 case TYPE_OBJ:
1048 return TRUE;
1049 default:
1050 return FALSE;
1051 }
1052 }
1053
1054 static int
1055 can_store_type (ILStackDesc *arg, MonoType *type)
1056 {
1057 int t = type->type;
1058 if (type->byref && arg->stype != TYPE_MP)
1059 return FALSE;
1060 handle_enum:
1061 switch (t) {
1062 case MONO_TYPE_VOID:
1063 return FALSE;
1064 case MONO_TYPE_I1:
1065 case MONO_TYPE_U1:
1066 case MONO_TYPE_BOOLEAN:
1067 case MONO_TYPE_I2:
1068 case MONO_TYPE_U2:
1069 case MONO_TYPE_CHAR:
1070 case MONO_TYPE_I4:
1071 case MONO_TYPE_U4:
1072 if (arg->stype == TYPE_I4 || arg->stype == TYPE_PTR)
1073 return TRUE;
1074 return FALSE;
1075 case MONO_TYPE_I:
1076 case MONO_TYPE_U:
1077 case MONO_TYPE_PTR:
1078 return TRUE;
1079 case MONO_TYPE_CLASS:
1080 case MONO_TYPE_STRING:
1081 case MONO_TYPE_OBJECT:
1082 case MONO_TYPE_SZARRAY:
1083 case MONO_TYPE_ARRAY:
1084 return TRUE; /* FIXME */
1085 case MONO_TYPE_I8:
1086 case MONO_TYPE_U8:
1087 if (arg->stype == TYPE_I8)
1088 return TRUE;
1089 return FALSE;
1090 case MONO_TYPE_R4:
1091 case MONO_TYPE_R8:
1092 if (arg->stype == TYPE_R8)
1093 return TRUE;
1094 return FALSE;
1095 case MONO_TYPE_VALUETYPE:
1096 if (type->data.klass->enumtype) {
1097 t = type->data.klass->enum_basetype->type;
1098 goto handle_enum;
1099 } else {
1100 if (arg->type->data.klass != type->data.klass)
1101 return FALSE;
1102 return TRUE;
1103 }
1104 default:
1105 g_error ("unknown type %02x in store type", type->type);
1106 }
1107 return FALSE;
1108 }
1109
1110 static int
1111 stind_type (int op, int type) {
1112 switch (op) {
1113 case CEE_STIND_REF:
1114 return type == TYPE_OBJ;
1115 case CEE_STIND_I1:
1116 case CEE_STIND_I2:
1117 case CEE_STIND_I4:
1118 return type == TYPE_I4;
1119 case CEE_STIND_I8:
1120 return type == TYPE_I8;
1121 case CEE_STIND_R4:
1122 case CEE_STIND_R8:
1123 return type == TYPE_R8;
1124 default:
1125 g_assert_not_reached ();
1126 }
1127 return FALSE;
1128 }
1129
1130 /*
1131 * FIXME: need to distinguish between valid and verifiable.
1132 * Need to keep track of types on the stack.
1133 * Verify types for opcodes.
1134 */
1135 GSList*
1136 mono_method_verify (MonoMethod *method, int level)
1137 {
1138 MonoMethodHeader *header;
1139 MonoMethodSignature *signature, *csig;
1140 MonoGenericContext *generic_context = NULL;
1141 MonoMethod *cmethod;
1142 MonoClassField *field;
1143 MonoClass *klass;
1144 MonoImage *image;
1145 MonoType **params;
1146 ILStackDesc *stack;
1147 register const unsigned char *ip;
1148 register const unsigned char *end;
1149 const unsigned char *target = NULL; /* branch target */
1150 int max_args, max_stack, cur_stack, i, n, need_merge, start;
1151 guint32 token, ip_offset = 0;
1152 char *local_state = NULL;
1153 GSList *list = NULL;
1154 guint prefix = 0;
1155 ILCodeDesc *code;
1156
1157 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1158 (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))) {
1159 return NULL;
1160 }
1161 signature = mono_method_signature (method);
1162 header = mono_method_get_header (method);
1163 ip = header->code;
1164 end = ip + header->code_size;
1165 max_args = signature->param_count + signature->hasthis;
1166 max_stack = header->max_stack;
1167 need_merge = cur_stack = 0;
1168 start = 1;
1169 image = method->klass->image;
1170 code = g_new0 (ILCodeDesc, header->code_size);
1171 stack = g_new0 (ILStackDesc, max_stack);
1172 if (signature->hasthis) {
1173 params = g_new0 (MonoType*, max_args);
1174 params [0] = &method->klass->this_arg;
1175 memcpy (params + 1, signature->params, sizeof (MonoType*) * signature->param_count);
1176 } else {
1177 params = signature->params;
1178 }
1179
1180 if (signature->is_inflated)
1181 generic_context = ((MonoMethodInflated *) method)->context;
1182
1183 if (header->num_locals) {
1184 local_state = g_new (char, header->num_locals);
1185 memset (local_state, header->init_locals, header->num_locals);
1186 }
1187 /*g_print ("Method %s.%s::%s\n", method->klass->name_space, method->klass->name, method->name);*/
1188
1189 for (i = 0; i < header->num_clauses; ++i) {
1190 MonoExceptionClause *clause = &header->clauses [i];
1191 /* catch blocks have the exception on the stack. */
1192 if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE) {
1193 code [clause->handler_offset].stack_count = 1;
1194 code [clause->handler_offset].flags |= CODE_SEEN;
1195 }
1196 }
1197
1198 while (ip < end) {
1199 ip_offset = ip - header->code;
1200 if (start || !(code [ip_offset].flags & CODE_SEEN)) {
1201 if (start) {
1202 /* g_print ("setting stack of IL_%04x to %d\n", ip_offset, 0); */
1203 cur_stack = code [ip_offset].stack_count;
1204 } else {
1205 code [ip_offset].stack_count = cur_stack;
1206 }
1207 code [ip_offset].flags |= CODE_SEEN;
1208 } else {
1209 /* stack merge */
1210 if (code [ip_offset].stack_count != cur_stack)
1211 ADD_INVALID (list, g_strdup_printf ("Cannot merge stack states at 0x%04x", ip_offset));
1212 }
1213 start = 0;
1214 if (need_merge) {
1215 if (!can_merge_stack (&code [ip_offset], &code [target - header->code]))
1216 ADD_INVALID (list, g_strdup_printf ("Cannot merge stack states at 0x%04x", ip_offset));
1217 need_merge = 0;
1218 }
1219 #if 0
1220 {
1221 char *discode;
1222 discode = mono_disasm_code_one (NULL, method, ip, NULL);
1223 discode [strlen (discode) - 1] = 0; /* no \n */
1224 g_print ("%-29s (%d)\n", discode, cur_stack);
1225 g_free (discode);
1226 }
1227 #endif
1228
1229 switch (*ip) {
1230 case CEE_NOP:
1231 case CEE_BREAK:
1232 ++ip;
1233 break;
1234 case CEE_LDARG_0:
1235 case CEE_LDARG_1:
1236 case CEE_LDARG_2:
1237 case CEE_LDARG_3:
1238 if (*ip - CEE_LDARG_0 >= max_args)
1239 ADD_INVALID (list, g_strdup_printf ("Method doesn't have argument %d at 0x%04x", *ip - CEE_LDARG_0, ip_offset));
1240 CHECK_STACK_OVERFLOW ();
1241 type_to_eval_stack_type (params [*ip - CEE_LDARG_0], stack + cur_stack, FALSE);
1242 ++cur_stack;
1243 ++ip;
1244 break;
1245 case CEE_LDLOC_0:
1246 case CEE_LDLOC_1:
1247 case CEE_LDLOC_2:
1248 case CEE_LDLOC_3:
1249 if (*ip - CEE_LDLOC_0 >= header->num_locals)
1250 ADD_INVALID (list, g_strdup_printf ("Method doesn't have local var %d at 0x%04x", *ip - CEE_LDLOC_0, ip_offset));
1251 if (0 && !local_state [*ip - CEE_LDLOC_0])
1252 ADD_INVALID (list, g_strdup_printf ("Local var %d is initialized at 0x%04x", *ip - CEE_LDLOC_0, ip_offset));
1253 CHECK_STACK_OVERFLOW ();
1254 type_to_eval_stack_type (header->locals [*ip - CEE_LDLOC_0], stack + cur_stack, FALSE);
1255 ++cur_stack;
1256 ++ip;
1257 break;
1258 case CEE_STLOC_0:
1259 case CEE_STLOC_1:
1260 case CEE_STLOC_2:
1261 case CEE_STLOC_3:
1262 if (*ip - CEE_STLOC_0 >= header->num_locals)
1263 ADD_INVALID (list, g_strdup_printf ("Method doesn't have local var %d at 0x%04x", *ip - CEE_STLOC_0, ip_offset));
1264 local_state [*ip - CEE_STLOC_0] = 1;
1265 CHECK_STACK_UNDERFLOW (1);
1266 --cur_stack;
1267 if (!can_store_type (stack + cur_stack, header->locals [*ip - CEE_STLOC_0]))
1268 ADD_INVALID (list, g_strdup_printf ("Incompatible type %s in store at 0x%04x", arg_name [stack [cur_stack].stype], ip_offset));
1269 ++ip;
1270 break;
1271 case CEE_LDARG_S:
1272 case CEE_LDARGA_S:
1273 if (ip [1] >= max_args)
1274 ADD_INVALID (list, g_strdup_printf ("Method doesn't have argument %d at 0x%04x", ip [1], ip_offset));
1275 CHECK_STACK_OVERFLOW ();
1276 type_to_eval_stack_type (params [ip [1]], stack + cur_stack, *ip == CEE_LDARGA_S);
1277 ++cur_stack;
1278 ip += 2;
1279 break;
1280 case CEE_STARG_S:
1281 if (ip [1] >= max_args)
1282 ADD_INVALID (list, g_strdup_printf ("Method doesn't have argument %d at 0x%04x", ip [1], ip_offset));
1283 CHECK_STACK_UNDERFLOW (1);
1284 --cur_stack;
1285 ip += 2;
1286 break;
1287 case CEE_LDLOC_S:
1288 case CEE_LDLOCA_S:
1289 if (ip [1] >= header->num_locals)
1290 ADD_INVALID (list, g_strdup_printf ("Method doesn't have local var %d at 0x%04x", ip [1], ip_offset));
1291 /* no need to check if the var is initialized if the address is taken */
1292 if (0 && *ip == CEE_LDLOC_S && !local_state [ip [1]])
1293 ADD_INVALID (list, g_strdup_printf ("Local var %d is initialized at 0x%04x", ip [1], ip_offset));
1294 CHECK_STACK_OVERFLOW ();
1295 type_to_eval_stack_type (header->locals [ip [1]], stack + cur_stack, *ip == CEE_LDLOCA_S);
1296 ++cur_stack;
1297 ip += 2;
1298 break;
1299 case CEE_STLOC_S:
1300 if (ip [1] >= header->num_locals)
1301 ADD_INVALID (list, g_strdup_printf ("Method doesn't have local var %d at 0x%04x", ip [1], ip_offset));
1302 local_state [ip [1]] = 1;
1303 CHECK_STACK_UNDERFLOW (1);
1304 --cur_stack;
1305 if (!can_store_type (stack + cur_stack, header->locals [ip [1]]))
1306 ADD_INVALID (list, g_strdup_printf ("Incompatible type %s in store at 0x%04x", arg_name [stack [cur_stack].stype], ip_offset));
1307 ip += 2;
1308 break;
1309 case CEE_LDNULL:
1310 CHECK_STACK_OVERFLOW ();
1311 stack [cur_stack].type = &mono_defaults.object_class->byval_arg;
1312 stack [cur_stack].stype = TYPE_OBJ;
1313 ++cur_stack;
1314 ++ip;
1315 break;
1316 case CEE_LDC_I4_M1:
1317 case CEE_LDC_I4_0:
1318 case CEE_LDC_I4_1:
1319 case CEE_LDC_I4_2:
1320 case CEE_LDC_I4_3:
1321 case CEE_LDC_I4_4:
1322 case CEE_LDC_I4_5:
1323 case CEE_LDC_I4_6:
1324 case CEE_LDC_I4_7:
1325 case CEE_LDC_I4_8:
1326 CHECK_STACK_OVERFLOW ();
1327 stack [cur_stack].type = &mono_defaults.int_class->byval_arg;
1328 stack [cur_stack].stype = TYPE_I4;
1329 ++cur_stack;
1330 ++ip;
1331 break;
1332 case CEE_LDC_I4_S:
1333 CHECK_STACK_OVERFLOW ();
1334 stack [cur_stack].type = &mono_defaults.int_class->byval_arg;
1335 stack [cur_stack].stype = TYPE_I4;
1336 ++cur_stack;
1337 ip += 2;
1338 break;
1339 case CEE_LDC_I4:
1340 CHECK_STACK_OVERFLOW ();
1341 stack [cur_stack].type = &mono_defaults.int_class->byval_arg;
1342 stack [cur_stack].stype = TYPE_I4;
1343 ++cur_stack;
1344 ip += 5;
1345 break;
1346 case CEE_LDC_I8:
1347 CHECK_STACK_OVERFLOW ();
1348 stack [cur_stack].type = &mono_defaults.int64_class->byval_arg;
1349 stack [cur_stack].stype = TYPE_I8;
1350 ++cur_stack;
1351 ip += 9;
1352 break;
1353 case CEE_LDC_R4:
1354 CHECK_STACK_OVERFLOW ();
1355 stack [cur_stack].type = &mono_defaults.double_class->byval_arg;
1356 stack [cur_stack].stype = TYPE_R8;
1357 ++cur_stack;
1358 ip += 5;
1359 break;
1360 case CEE_LDC_R8:
1361 CHECK_STACK_OVERFLOW ();
1362 stack [cur_stack].type = &mono_defaults.double_class->byval_arg;
1363 stack [cur_stack].stype = TYPE_R8;
1364 ++cur_stack;
1365 ip += 9;
1366 break;
1367 case CEE_UNUSED99: ++ip; break; /* warn/error instead? */
1368 case CEE_DUP:
1369 CHECK_STACK_UNDERFLOW (1);
1370 CHECK_STACK_OVERFLOW ();
1371 stack [cur_stack] = stack [cur_stack - 1];
1372 ++cur_stack;
1373 ++ip;
1374 break;
1375 case CEE_POP:
1376 CHECK_STACK_UNDERFLOW (1);
1377 --cur_stack;
1378 ++ip;
1379 break;
1380 case CEE_JMP:
1381 if (cur_stack)
1382 ADD_INVALID (list, g_strdup_printf ("Eval stack must be empty in jmp at 0x%04x", ip_offset));
1383 token = read32 (ip + 1);
1384 if (in_any_block (header, ip_offset))
1385 ADD_INVALID (list, g_strdup_printf ("jmp cannot escape exception blocks at 0x%04x", ip_offset));
1386 /*
1387 * FIXME: check signature, retval, arguments etc.
1388 */
1389 ip += 5;
1390 break;
1391 case CEE_CALL:
1392 case CEE_CALLVIRT:
1393 token = read32 (ip + 1);
1394 /*
1395 * FIXME: we could just load the signature ...
1396 */
1397 cmethod = mono_get_method_full (image, token, NULL, generic_context);
1398 if (!cmethod)
1399 ADD_INVALID (list, g_strdup_printf ("Method 0x%08x not found at 0x%04x", token, ip_offset));
1400 if (mono_method_signature (cmethod)) {
1401 csig = mono_method_signature (cmethod);
1402 } else {
1403 csig = mono_method_get_signature (cmethod, image, token);
1404 }
1405
1406 CHECK_STACK_UNDERFLOW (csig->param_count + csig->hasthis);
1407 cur_stack -= csig->param_count + csig->hasthis;
1408 if (csig->ret->type != MONO_TYPE_VOID) {
1409 CHECK_STACK_OVERFLOW ();
1410 type_to_eval_stack_type (csig->ret, stack + cur_stack, FALSE);
1411 ++cur_stack;
1412 }
1413 ip += 5;
1414 break;
1415 case CEE_CALLI:
1416 token = read32 (ip + 1);
1417 /*
1418 * FIXME: check signature, retval, arguments etc.
1419 */
1420 ip += 5;
1421 break;
1422 case CEE_RET:
1423 if (signature->ret->type != MONO_TYPE_VOID) {
1424 CHECK_STACK_UNDERFLOW (1);
1425 --cur_stack;
1426 if (!can_store_type (stack + cur_stack, signature->ret))
1427 ADD_INVALID (list, g_strdup_printf ("Incompatible type %s in ret at 0x%04x", arg_name [stack [cur_stack].stype], ip_offset));
1428 }
1429 if (cur_stack)
1430 ADD_INVALID (list, g_strdup_printf ("Stack not empty (%d) after ret at 0x%04x", cur_stack, ip_offset));
1431 cur_stack = 0;
1432 if (in_any_block (header, ip_offset))
1433 ADD_INVALID (list, g_strdup_printf ("ret cannot escape exception blocks at 0x%04x", ip_offset));
1434 ++ip;
1435 start = 1;
1436 break;
1437 case CEE_BR_S:
1438 target = ip + (signed char)ip [1] + 2;
1439 if (target >= end || target < header->code)
1440 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1441 if (!in_same_block (header, ip_offset, target - header->code))
1442 ADD_INVALID (list, g_strdup_printf ("Branch target escapes out of exception block at 0x%04x", ip_offset));
1443 ip += 2;
1444 start = 1;
1445 break;
1446 case CEE_BRFALSE_S:
1447 case CEE_BRTRUE_S:
1448 target = ip + (signed char)ip [1] + 2;
1449 if (target >= end || target < header->code)
1450 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1451 if (!in_same_block (header, ip_offset, target - header->code))
1452 ADD_INVALID (list, g_strdup_printf ("Branch target escapes out of exception block at 0x%04x", ip_offset));
1453 CHECK_STACK_UNDERFLOW (1);
1454 --cur_stack;
1455 if (!is_valid_bool_arg (stack + cur_stack))
1456 ADD_INVALID (list, g_strdup_printf ("Argument type %s not valid for brtrue/brfalse at 0x%04x", arg_name [stack [cur_stack].stype], ip_offset));
1457 ip += 2;
1458 need_merge = 1;
1459 break;
1460 case CEE_BEQ_S:
1461 case CEE_BGE_S:
1462 case CEE_BGT_S:
1463 case CEE_BLE_S:
1464 case CEE_BLT_S:
1465 case CEE_BNE_UN_S:
1466 case CEE_BGE_UN_S:
1467 case CEE_BGT_UN_S:
1468 case CEE_BLE_UN_S:
1469 case CEE_BLT_UN_S:
1470 target = ip + (signed char)ip [1] + 2;
1471 if (target >= end || target < header->code)
1472 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1473 if (!in_same_block (header, ip_offset, target - header->code))
1474 ADD_INVALID (list, g_strdup_printf ("Branch target escapes out of exception block at 0x%04x", ip_offset));
1475 CHECK_STACK_UNDERFLOW (2);
1476 cur_stack -= 2;
1477 if (type_from_op (*ip, stack + cur_stack) == TYPE_INV)
1478 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0x%02x at 0x%04x", *ip, ip_offset));
1479 ip += 2;
1480 need_merge = 1;
1481 break;
1482 case CEE_BR:
1483 target = ip + (gint32)read32 (ip + 1) + 5;
1484 if (target >= end || target < header->code)
1485 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1486 if (!in_same_block (header, ip_offset, target - header->code))
1487 ADD_INVALID (list, g_strdup_printf ("Branch target escapes out of exception block at 0x%04x", ip_offset));
1488 ip += 5;
1489 start = 1;
1490 break;
1491 case CEE_BRFALSE:
1492 case CEE_BRTRUE:
1493 target = ip + (gint32)read32 (ip + 1) + 5;
1494 if (target >= end || target < header->code)
1495 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1496 if (!in_same_block (header, ip_offset, target - header->code))
1497 ADD_INVALID (list, g_strdup_printf ("Branch target escapes out of exception block at 0x%04x", ip_offset));
1498 CHECK_STACK_UNDERFLOW (1);
1499 --cur_stack;
1500 if (!is_valid_bool_arg (stack + cur_stack))
1501 ADD_INVALID (list, g_strdup_printf ("Argument type %s not valid for brtrue/brfalse at 0x%04x", arg_name [stack [cur_stack].stype], ip_offset));
1502 ip += 5;
1503 need_merge = 1;
1504 break;
1505 case CEE_BEQ:
1506 case CEE_BGE:
1507 case CEE_BGT:
1508 case CEE_BLE:
1509 case CEE_BLT:
1510 case CEE_BNE_UN:
1511 case CEE_BGE_UN:
1512 case CEE_BGT_UN:
1513 case CEE_BLE_UN:
1514 case CEE_BLT_UN:
1515 target = ip + (gint32)read32 (ip + 1) + 5;
1516 if (target >= end || target < header->code)
1517 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1518 if (!in_same_block (header, ip_offset, target - header->code))
1519 ADD_INVALID (list, g_strdup_printf ("Branch target escapes out of exception block at 0x%04x", ip_offset));
1520 CHECK_STACK_UNDERFLOW (2);
1521 cur_stack -= 2;
1522 if (type_from_op (*ip, stack + cur_stack) == TYPE_INV)
1523 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0x%02x at 0x%04x", *ip, ip_offset));
1524 ip += 5;
1525 need_merge = 1;
1526 break;
1527 case CEE_SWITCH:
1528 n = read32 (ip + 1);
1529 target = ip + sizeof (guint32) * n;
1530 /* FIXME: check that ip is in range (and within the same exception block) */
1531 for (i = 0; i < n; ++i)
1532 if (target + (gint32) read32 (ip + 5 + i * sizeof (gint32)) >= end || target + (gint32) read32 (ip + 5 + i * sizeof (gint32)) < header->code)
1533 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1534 CHECK_STACK_UNDERFLOW (1);
1535 --cur_stack;
1536 if (stack [cur_stack].stype != TYPE_I4)
1537 ADD_INVALID (list, g_strdup_printf ("Invalid argument to switch at 0x%04x", ip_offset));
1538 ip += 5 + sizeof (guint32) * n;
1539 break;
1540 case CEE_LDIND_I1:
1541 case CEE_LDIND_U1:
1542 case CEE_LDIND_I2:
1543 case CEE_LDIND_U2:
1544 case CEE_LDIND_I4:
1545 case CEE_LDIND_U4:
1546 case CEE_LDIND_I8:
1547 case CEE_LDIND_I:
1548 case CEE_LDIND_R4:
1549 case CEE_LDIND_R8:
1550 case CEE_LDIND_REF:
1551 CHECK_STACK_UNDERFLOW (1);
1552 if (stack [cur_stack - 1].stype != TYPE_PTR && stack [cur_stack - 1].stype != TYPE_MP)
1553 ADD_INVALID (list, g_strdup_printf ("Invalid argument to ldind at 0x%04x", ip_offset));
1554 stack [cur_stack - 1].stype = ldind_type [*ip - CEE_LDIND_I1];
1555 ++ip;
1556 break;
1557 case CEE_STIND_REF:
1558 case CEE_STIND_I1:
1559 case CEE_STIND_I2:
1560 case CEE_STIND_I4:
1561 case CEE_STIND_I8:
1562 case CEE_STIND_R4:
1563 case CEE_STIND_R8:
1564 CHECK_STACK_UNDERFLOW (2);
1565 cur_stack -= 2;
1566 if (stack [cur_stack].stype != TYPE_PTR && stack [cur_stack].stype != TYPE_MP)
1567 ADD_INVALID (list, g_strdup_printf ("Invalid pointer argument to stind at 0x%04x", ip_offset));
1568 if (!stind_type (*ip, stack [cur_stack + 1].stype))
1569 ADD_INVALID (list, g_strdup_printf ("Incompatible value argument to stind at 0x%04x", ip_offset));
1570 ++ip;
1571 break;
1572 case CEE_ADD:
1573 case CEE_SUB:
1574 case CEE_MUL:
1575 case CEE_DIV:
1576 case CEE_DIV_UN:
1577 case CEE_REM:
1578 case CEE_REM_UN:
1579 case CEE_AND:
1580 case CEE_OR:
1581 case CEE_XOR:
1582 case CEE_SHL:
1583 case CEE_SHR:
1584 case CEE_SHR_UN:
1585 CHECK_STACK_UNDERFLOW (2);
1586 --cur_stack;
1587 if (type_from_op (*ip, stack + cur_stack - 1) == TYPE_INV)
1588 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0x%02x at 0x%04x", *ip, ip_offset));
1589 ++ip;
1590 break;
1591 case CEE_NEG:
1592 case CEE_NOT:
1593 case CEE_CONV_I1:
1594 case CEE_CONV_I2:
1595 case CEE_CONV_I4:
1596 case CEE_CONV_I8:
1597 case CEE_CONV_R4:
1598 case CEE_CONV_R8:
1599 case CEE_CONV_U4:
1600 case CEE_CONV_U8:
1601 CHECK_STACK_UNDERFLOW (1);
1602 if (type_from_op (*ip, stack + cur_stack - 1) == TYPE_INV)
1603 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0x%02x at 0x%04x", *ip, ip_offset));
1604 ++ip;
1605 break;
1606 case CEE_CPOBJ:
1607 token = read32 (ip + 1);
1608 CHECK_STACK_UNDERFLOW (2);
1609 cur_stack -= 2;
1610 ip += 5;
1611 break;
1612 case CEE_LDOBJ:
1613 token = read32 (ip + 1);
1614 CHECK_STACK_UNDERFLOW (1);
1615 if (stack [cur_stack - 1].stype != TYPE_MP)
1616 ADD_INVALID (list, g_strdup_printf ("Invalid argument to ldobj at 0x%04x", ip_offset));
1617 klass = mono_class_get_full (image, token, generic_context);
1618 if (!klass)
1619 ADD_INVALID (list, g_strdup_printf ("Cannot load class from token 0x%08x at 0x%04x", token, ip_offset));
1620 if (!klass->valuetype)
1621 ADD_INVALID (list, g_strdup_printf ("Class is not a valuetype at 0x%04x", ip_offset));
1622 stack [cur_stack - 1].stype = TYPE_VT;
1623 stack [cur_stack - 1].type = &klass->byval_arg;
1624 ip += 5;
1625 break;
1626 case CEE_LDSTR:
1627 token = read32 (ip + 1);
1628 CHECK_STACK_OVERFLOW ();
1629 stack [cur_stack].type = &mono_defaults.string_class->byval_arg;
1630 stack [cur_stack].stype = TYPE_OBJ;
1631 ++cur_stack;
1632 ip += 5;
1633 break;
1634 case CEE_NEWOBJ:
1635 token = read32 (ip + 1);
1636 /*
1637 * FIXME: we could just load the signature ...
1638 */
1639 cmethod = mono_get_method_full (image, token, NULL, generic_context);
1640 if (!cmethod)
1641 ADD_INVALID (list, g_strdup_printf ("Constructor 0x%08x not found at 0x%04x", token, ip_offset));
1642 csig = mono_method_signature (cmethod);
1643 CHECK_STACK_UNDERFLOW (csig->param_count);
1644 cur_stack -= csig->param_count;
1645 CHECK_STACK_OVERFLOW ();
1646 stack [cur_stack].type = &cmethod->klass->byval_arg;
1647 stack [cur_stack].stype = cmethod->klass->valuetype? TYPE_VT: TYPE_OBJ;
1648 ++cur_stack;
1649 ip += 5;
1650 break;
1651 case CEE_CASTCLASS:
1652 case CEE_ISINST:
1653 token = read32 (ip + 1);
1654 CHECK_STACK_UNDERFLOW (1);
1655 ip += 5;
1656 break;
1657 case CEE_CONV_R_UN:
1658 CHECK_STACK_UNDERFLOW (1);
1659 ++ip;
1660 break;
1661 case CEE_UNUSED58:
1662 case CEE_UNUSED1:
1663 ++ip; /* warn, error ? */
1664 break;
1665 case CEE_UNBOX:
1666 token = read32 (ip + 1);
1667 CHECK_STACK_UNDERFLOW (1);
1668 if (stack [cur_stack - 1].stype != TYPE_OBJ)
1669 ADD_INVALID (list, g_strdup_printf ("Invalid argument %s to unbox at 0x%04x", arg_name [stack [cur_stack - 1].stype], ip_offset));
1670 stack [cur_stack - 1].stype = TYPE_MP;
1671 stack [cur_stack - 1].type = NULL;
1672 ip += 5;
1673 break;
1674 case CEE_THROW:
1675 CHECK_STACK_UNDERFLOW (1);
1676 --cur_stack;
1677 ++ip;
1678 start = 1;
1679 break;
1680 case CEE_LDFLD:
1681 CHECK_STACK_UNDERFLOW (1);
1682 if (stack [cur_stack - 1].stype != TYPE_OBJ && stack [cur_stack - 1].stype != TYPE_MP)
1683 ADD_INVALID (list, g_strdup_printf ("Invalid argument %s to ldfld at 0x%04x", arg_name [stack [cur_stack].stype], ip_offset));
1684 token = read32 (ip + 1);
1685 field = mono_field_from_token (image, token, &klass, generic_context);
1686 if (!field)
1687 ADD_INVALID (list, g_strdup_printf ("Cannot load field from token 0x%08x at 0x%04x", token, ip_offset));
1688 type_to_eval_stack_type (field->type, stack + cur_stack - 1, FALSE);
1689 ip += 5;
1690 break;
1691 case CEE_LDFLDA:
1692 CHECK_STACK_UNDERFLOW (1);
1693 if (stack [cur_stack - 1].stype != TYPE_OBJ && stack [cur_stack - 1].stype != TYPE_MP)
1694 ADD_INVALID (list, g_strdup_printf ("Invalid argument to ldflda at 0x%04x", ip_offset));
1695 token = read32 (ip + 1);
1696 field = mono_field_from_token (image, token, &klass, generic_context);
1697 if (!field)
1698 ADD_INVALID (list, g_strdup_printf ("Cannot load field from token 0x%08x at 0x%04x", token, ip_offset));
1699 type_to_eval_stack_type (field->type, stack + cur_stack - 1, TRUE);
1700 ip += 5;
1701 break;
1702 case CEE_STFLD:
1703 CHECK_STACK_UNDERFLOW (2);
1704 cur_stack -= 2;
1705 if (stack [cur_stack].stype != TYPE_OBJ && stack [cur_stack].stype != TYPE_MP)
1706 ADD_INVALID (list, g_strdup_printf ("Invalid argument to stfld at 0x%04x", ip_offset));
1707 token = read32 (ip + 1);
1708 field = mono_field_from_token (image, token, &klass, generic_context);
1709 if (!field)
1710 ADD_INVALID (list, g_strdup_printf ("Cannot load field from token 0x%08x at 0x%04x", token, ip_offset));
1711 /* can_store */
1712 ip += 5;
1713 break;
1714 case CEE_LDSFLD:
1715 CHECK_STACK_OVERFLOW ();
1716 token = read32 (ip + 1);
1717 field = mono_field_from_token (image, token, &klass, generic_context);
1718 if (!field)
1719 ADD_INVALID (list, g_strdup_printf ("Cannot load field from token 0x%08x at 0x%04x", token, ip_offset));
1720 type_to_eval_stack_type (field->type, stack + cur_stack, FALSE);
1721 ++cur_stack;
1722 ip += 5;
1723 break;
1724 case CEE_LDSFLDA:
1725 CHECK_STACK_OVERFLOW ();
1726 token = read32 (ip + 1);
1727 field = mono_field_from_token (image, token, &klass, generic_context);
1728 if (!field)
1729 ADD_INVALID (list, g_strdup_printf ("Cannot load field from token 0x%08x at 0x%04x", token, ip_offset));
1730 type_to_eval_stack_type (field->type, stack + cur_stack, TRUE);
1731 ++cur_stack;
1732 ip += 5;
1733 break;
1734 case CEE_STSFLD:
1735 CHECK_STACK_UNDERFLOW (1);
1736 --cur_stack;
1737 token = read32 (ip + 1);
1738 field = mono_field_from_token (image, token, &klass, generic_context);
1739 if (!field)
1740 ADD_INVALID (list, g_strdup_printf ("Cannot load field from token 0x%08x at 0x%04x", token, ip_offset));
1741 /* can store */
1742 ip += 5;
1743 break;
1744 case CEE_STOBJ:
1745 CHECK_STACK_UNDERFLOW (2);
1746 cur_stack -= 2;
1747 token = read32 (ip + 1);
1748 ip += 5;
1749 break;
1750 case CEE_CONV_OVF_I1_UN:
1751 case CEE_CONV_OVF_I2_UN:
1752 case CEE_CONV_OVF_I4_UN:
1753 case CEE_CONV_OVF_I8_UN:
1754 case CEE_CONV_OVF_U1_UN:
1755 case CEE_CONV_OVF_U2_UN:
1756 case CEE_CONV_OVF_U4_UN:
1757 case CEE_CONV_OVF_U8_UN:
1758 case CEE_CONV_OVF_I_UN:
1759 case CEE_CONV_OVF_U_UN:
1760 CHECK_STACK_UNDERFLOW (1);
1761 if (type_from_op (*ip, stack + cur_stack - 1) == TYPE_INV)
1762 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0x%02x at 0x%04x", *ip, ip_offset));
1763 ++ip;
1764 break;
1765 case CEE_BOX:
1766 CHECK_STACK_UNDERFLOW (1);
1767 token = read32 (ip + 1);
1768 if (stack [cur_stack - 1].stype == TYPE_OBJ)
1769 ADD_INVALID (list, g_strdup_printf ("Invalid argument %s to box at 0x%04x", arg_name [stack [cur_stack - 1].stype], ip_offset));
1770 stack [cur_stack - 1].stype = TYPE_OBJ;
1771 ip += 5;
1772 break;
1773 case CEE_NEWARR:
1774 CHECK_STACK_UNDERFLOW (1);
1775 token = read32 (ip + 1);
1776 stack [cur_stack - 1].stype = TYPE_OBJ;
1777 ip += 5;
1778 break;
1779 case CEE_LDLEN:
1780 CHECK_STACK_UNDERFLOW (1);
1781 if (stack [cur_stack - 1].stype != TYPE_OBJ)
1782 ADD_INVALID (list, g_strdup_printf ("Invalid argument to ldlen at 0x%04x", ip_offset));
1783 stack [cur_stack - 1].type = &mono_defaults.int_class->byval_arg; /* FIXME: use a native int type */
1784 stack [cur_stack - 1].stype = TYPE_PTR;
1785 ++ip;
1786 break;
1787 case CEE_LDELEMA:
1788 CHECK_STACK_UNDERFLOW (2);
1789 --cur_stack;
1790 if (stack [cur_stack - 1].stype != TYPE_OBJ)
1791 ADD_INVALID (list, g_strdup_printf ("Invalid array argument to ldelema at 0x%04x", ip_offset));
1792 if (stack [cur_stack].stype != TYPE_I4 && stack [cur_stack].stype != TYPE_PTR)
1793 ADD_INVALID (list, g_strdup_printf ("Array index needs to be Int32 or IntPtr at 0x%04x", ip_offset));
1794 stack [cur_stack - 1].stype = TYPE_MP;
1795 token = read32 (ip + 1);
1796 ip += 5;
1797 break;
1798 case CEE_LDELEM_I1:
1799 case CEE_LDELEM_U1:
1800 case CEE_LDELEM_I2:
1801 case CEE_LDELEM_U2:
1802 case CEE_LDELEM_I4:
1803 case CEE_LDELEM_U4:
1804 case CEE_LDELEM_I8:
1805 case CEE_LDELEM_I:
1806 case CEE_LDELEM_R4:
1807 case CEE_LDELEM_R8:
1808 case CEE_LDELEM_REF:
1809 CHECK_STACK_UNDERFLOW (2);
1810 --cur_stack;
1811 if (stack [cur_stack - 1].stype != TYPE_OBJ)
1812 ADD_INVALID (list, g_strdup_printf ("Invalid array argument to ldelem at 0x%04x", ip_offset));
1813 if (stack [cur_stack].stype != TYPE_I4 && stack [cur_stack].stype != TYPE_PTR)
1814 ADD_INVALID (list, g_strdup_printf ("Array index needs to be Int32 or IntPtr at 0x%04x", ip_offset));
1815 stack [cur_stack - 1].stype = ldelem_type [*ip - CEE_LDELEM_I1];
1816 ++ip;
1817 break;
1818 case CEE_STELEM_I:
1819 case CEE_STELEM_I1:
1820 case CEE_STELEM_I2:
1821 case CEE_STELEM_I4:
1822 case CEE_STELEM_I8:
1823 case CEE_STELEM_R4:
1824 case CEE_STELEM_R8:
1825 case CEE_STELEM_REF:
1826 CHECK_STACK_UNDERFLOW (3);
1827 cur_stack -= 3;
1828 ++ip;
1829 break;
1830 case CEE_LDELEM_ANY:
1831 case CEE_STELEM_ANY:
1832 case CEE_UNBOX_ANY:
1833 case CEE_UNUSED5:
1834 case CEE_UNUSED6:
1835 case CEE_UNUSED7:
1836 case CEE_UNUSED8:
1837 case CEE_UNUSED9:
1838 case CEE_UNUSED10:
1839 case CEE_UNUSED11:
1840 case CEE_UNUSED12:
1841 case CEE_UNUSED13:
1842 case CEE_UNUSED14:
1843 case CEE_UNUSED15:
1844 case CEE_UNUSED16:
1845 case CEE_UNUSED17:
1846 ++ip; /* warn, error ? */
1847 break;
1848 case CEE_CONV_OVF_I1:
1849 case CEE_CONV_OVF_U1:
1850 case CEE_CONV_OVF_I2:
1851 case CEE_CONV_OVF_U2:
1852 case CEE_CONV_OVF_I4:
1853 case CEE_CONV_OVF_U4:
1854 case CEE_CONV_OVF_I8:
1855 case CEE_CONV_OVF_U8:
1856 CHECK_STACK_UNDERFLOW (1);
1857 if (type_from_op (*ip, stack + cur_stack - 1) == TYPE_INV)
1858 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0x%02x at 0x%04x", *ip, ip_offset));
1859 ++ip;
1860 break;
1861 case CEE_UNUSED50:
1862 case CEE_UNUSED18:
1863 case CEE_UNUSED19:
1864 case CEE_UNUSED20:
1865 case CEE_UNUSED21:
1866 case CEE_UNUSED22:
1867 case CEE_UNUSED23:
1868 ++ip; /* warn, error ? */
1869 break;
1870 case CEE_REFANYVAL:
1871 CHECK_STACK_UNDERFLOW (1);
1872 ++ip;
1873 break;
1874 case CEE_CKFINITE:
1875 CHECK_STACK_UNDERFLOW (1);
1876 ++ip;
1877 break;
1878 case CEE_UNUSED24:
1879 case CEE_UNUSED25:
1880 ++ip; /* warn, error ? */
1881 break;
1882 case CEE_MKREFANY:
1883 CHECK_STACK_UNDERFLOW (1);
1884 token = read32 (ip + 1);
1885 ip += 5;
1886 break;
1887 case CEE_UNUSED59:
1888 case CEE_UNUSED60:
1889 case CEE_UNUSED61:
1890 case CEE_UNUSED62:
1891 case CEE_UNUSED63:
1892 case CEE_UNUSED64:
1893 case CEE_UNUSED65:
1894 case CEE_UNUSED66:
1895 case CEE_UNUSED67:
1896 ++ip; /* warn, error ? */
1897 break;
1898 case CEE_LDTOKEN:
1899 CHECK_STACK_OVERFLOW ();
1900 token = read32 (ip + 1);
1901 ++cur_stack;
1902 ip += 5;
1903 break;
1904 case CEE_CONV_U2:
1905 case CEE_CONV_U1:
1906 case CEE_CONV_I:
1907 case CEE_CONV_OVF_I:
1908 case CEE_CONV_OVF_U:
1909 CHECK_STACK_UNDERFLOW (1);
1910 if (type_from_op (*ip, stack + cur_stack - 1) == TYPE_INV)
1911 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0x%02x at 0x%04x", *ip, ip_offset));
1912 ++ip;
1913 break;
1914 case CEE_ADD_OVF:
1915 case CEE_ADD_OVF_UN:
1916 case CEE_MUL_OVF:
1917 case CEE_MUL_OVF_UN:
1918 case CEE_SUB_OVF:
1919 case CEE_SUB_OVF_UN:
1920 CHECK_STACK_UNDERFLOW (2);
1921 --cur_stack;
1922 ++ip;
1923 break;
1924 case CEE_ENDFINALLY:
1925 ++ip;
1926 start = 1;
1927 break;
1928 case CEE_LEAVE:
1929 target = ip + (gint32)read32(ip + 1) + 5;
1930 if (target >= end || target < header->code)
1931 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1932 if (!is_correct_leave (header, ip_offset, target - header->code))
1933 ADD_INVALID (list, g_strdup_printf ("Leave not allowed in finally block at 0x%04x", ip_offset));
1934 ip += 5;
1935 start = 1;
1936 break;
1937 case CEE_LEAVE_S:
1938 target = ip + (signed char)ip [1] + 2;
1939 if (target >= end || target < header->code)
1940 ADD_INVALID (list, g_strdup_printf ("Branch target out of code at 0x%04x", ip_offset));
1941 if (!is_correct_leave (header, ip_offset, target - header->code))
1942 ADD_INVALID (list, g_strdup_printf ("Leave not allowed in finally block at 0x%04x", ip_offset));
1943 ip += 2;
1944 start = 1;
1945 break;
1946 case CEE_STIND_I:
1947 CHECK_STACK_UNDERFLOW (2);
1948 cur_stack -= 2;
1949 ++ip;
1950 break;
1951 case CEE_CONV_U:
1952 CHECK_STACK_UNDERFLOW (1);
1953 ++ip;
1954 break;
1955 case CEE_UNUSED26:
1956 case CEE_UNUSED27:
1957 case CEE_UNUSED28:
1958 case CEE_UNUSED29:
1959 case CEE_UNUSED30:
1960 case CEE_UNUSED31:
1961 case CEE_UNUSED32:
1962 case CEE_UNUSED33:
1963 case CEE_UNUSED34:
1964 case CEE_UNUSED35:
1965 case CEE_UNUSED36:
1966 case CEE_UNUSED37:
1967 case CEE_UNUSED38:
1968 case CEE_UNUSED39:
1969 case CEE_UNUSED40:
1970 case CEE_UNUSED41:
1971 case CEE_UNUSED42:
1972 case CEE_UNUSED43:
1973 case CEE_UNUSED44:
1974 case CEE_UNUSED45:
1975 case CEE_UNUSED46:
1976 case CEE_UNUSED47:
1977 case CEE_UNUSED48:
1978 ++ip;
1979 break;
1980 case CEE_PREFIX7:
1981 case CEE_PREFIX6:
1982 case CEE_PREFIX5:
1983 case CEE_PREFIX4:
1984 case CEE_PREFIX3:
1985 case CEE_PREFIX2:
1986 case CEE_PREFIXREF:
1987 ++ip;
1988 break;
1989 case CEE_PREFIX1:
1990 ++ip;
1991 switch (*ip) {
1992 case CEE_ARGLIST:
1993 CHECK_STACK_OVERFLOW ();
1994 ++ip;
1995 break;
1996 case CEE_CEQ:
1997 case CEE_CGT:
1998 case CEE_CGT_UN:
1999 case CEE_CLT:
2000 case CEE_CLT_UN:
2001 CHECK_STACK_UNDERFLOW (2);
2002 --cur_stack;
2003 if (type_from_op (256 + *ip, stack + cur_stack - 1) == TYPE_INV)
2004 ADD_INVALID (list, g_strdup_printf ("Invalid arguments to opcode 0xFE 0x%02x at 0x%04x", *ip, ip_offset));
2005 ++ip;
2006 break;
2007 case CEE_LDFTN:
2008 CHECK_STACK_OVERFLOW ();
2009 token = read32 (ip + 1);
2010 ip += 5;
2011 stack [cur_stack].stype = TYPE_PTR;
2012 cur_stack++;
2013 break;
2014 case CEE_LDVIRTFTN:
2015 CHECK_STACK_UNDERFLOW (1);
2016 token = read32 (ip + 1);
2017 ip += 5;
2018 if (stack [cur_stack - 1].stype != TYPE_OBJ)
2019 ADD_INVALID (list, g_strdup_printf ("Invalid argument to ldvirtftn at 0x%04x", ip_offset));
2020 stack [cur_stack - 1].stype = TYPE_PTR;
2021 break;
2022 case CEE_UNUSED56:
2023 ++ip;
2024 break;
2025 case CEE_LDARG:
2026 case CEE_LDARGA:
2027 if (read16 (ip + 1) >= max_args)
2028 ADD_INVALID (list, g_strdup_printf ("Method doesn't have argument %d at 0x%04x", read16 (ip + 1), ip_offset));
2029 CHECK_STACK_OVERFLOW ();
2030 ++cur_stack;
2031 ip += 3;
2032 break;
2033 case CEE_STARG:
2034 if (read16 (ip + 1) >= max_args)
2035 ADD_INVALID (list, g_strdup_printf ("Method doesn't have argument %d at 0x%04x", read16(ip + 1), ip_offset));
2036 CHECK_STACK_UNDERFLOW (1);
2037 --cur_stack;
2038 ip += 3;
2039 break;
2040 case CEE_LDLOC:
2041 case CEE_LDLOCA:
2042 n = read16 (ip + 1);
2043 if (n >= header->num_locals)
2044 ADD_INVALID (list, g_strdup_printf ("Method doesn't have local var %d at 0x%04x", n, ip_offset));
2045 /* no need to check if the var is initialized if the address is taken */
2046 if (0 && *ip == CEE_LDLOC && !local_state [n])
2047 ADD_INVALID (list, g_strdup_printf ("Local var %d is initialized at 0x%04x", n, ip_offset));
2048 CHECK_STACK_OVERFLOW ();
2049 type_to_eval_stack_type (header->locals [n], stack + cur_stack, *ip == CEE_LDLOCA);
2050 ++cur_stack;
2051 ip += 3;
2052 break;
2053 case CEE_STLOC:
2054 n = read16 (ip + 1);
2055 if (n >= header->num_locals)
2056 ADD_INVALID (list, g_strdup_printf ("Method doesn't have local var %d at 0x%04x", n, ip_offset));
2057 local_state [n] = 1;
2058 CHECK_STACK_UNDERFLOW (1);
2059 --cur_stack;
2060 if (!can_store_type (stack + cur_stack, header->locals [n]))
2061 ADD_INVALID (list, g_strdup_printf ("Incompatible type %s in store at 0x%04x", arg_name [stack [cur_stack].stype], ip_offset));
2062 ip += 3;
2063 break;
2064 case CEE_LOCALLOC:
2065 if (cur_stack != 1)
2066 ADD_INVALID (list, g_strdup_printf ("Stack must have only size item in localloc at 0x%04x", ip_offset));
2067 if (stack [cur_stack -1].stype != TYPE_I4 && stack [cur_stack -1].stype != TYPE_PTR)
2068 ADD_INVALID (list, g_strdup_printf ("Invalid argument to localloc at 0x%04x", ip_offset));
2069 stack [cur_stack -1].stype = TYPE_MP;
2070 ++ip;
2071 break;
2072 case CEE_UNUSED57:
2073 ++ip;
2074 break;
2075 case CEE_ENDFILTER:
2076 if (cur_stack != 1)
2077 ADD_INVALID (list, g_strdup_printf ("Stack must have only filter result in endfilter at 0x%04x", ip_offset));
2078 ++ip;
2079 break;
2080 case CEE_UNALIGNED_:
2081 prefix |= PREFIX_UNALIGNED;
2082 ++ip;
2083 break;
2084 case CEE_VOLATILE_:
2085 prefix |= PREFIX_VOLATILE;
2086 ++ip;
2087 break;
2088 case CEE_TAIL_:
2089 prefix |= PREFIX_TAIL;
2090 ++ip;
2091 if (ip < end && (*ip != CEE_CALL && *ip != CEE_CALLI && *ip != CEE_CALLVIRT))
2092 ADD_INVALID (list, g_strdup_printf ("tail prefix must be used only with call opcodes at 0x%04x", ip_offset));
2093 break;
2094 case CEE_INITOBJ:
2095 CHECK_STACK_UNDERFLOW (1);
2096 token = read32 (ip + 1);
2097 ip += 5;
2098 --cur_stack;
2099 break;
2100 case CEE_CONSTRAINED_:
2101 token = read32 (ip + 1);
2102 ip += 5;
2103 break;
2104 case CEE_CPBLK:
2105 CHECK_STACK_UNDERFLOW (3);
2106 ip++;
2107 break;
2108 case CEE_INITBLK:
2109 CHECK_STACK_UNDERFLOW (3);
2110 ip++;
2111 break;
2112 case CEE_NO_:
2113 ip += 2;
2114 break;
2115 case CEE_RETHROW:
2116 ++ip;
2117 break;
2118 case CEE_UNUSED:
2119 ++ip;
2120 break;
2121 case CEE_SIZEOF:
2122 CHECK_STACK_OVERFLOW ();
2123 token = read32 (ip + 1);
2124 ip += 5;
2125 stack [cur_stack].type = &mono_defaults.uint_class->byval_arg;
2126 stack [cur_stack].stype = TYPE_I4;
2127 cur_stack++;
2128 break;
2129 case CEE_REFANYTYPE:
2130 CHECK_STACK_UNDERFLOW (1);
2131 ++ip;
2132 break;
2133 case CEE_UNUSED53:
2134 case CEE_UNUSED54:
2135 case CEE_UNUSED55:
2136 case CEE_UNUSED70:
2137 ++ip;
2138 break;
2139 }
2140 }
2141 }
2142 /*
2143 * if ip != end we overflowed: mark as error.
2144 */
2145 if (ip != end || !start) {
2146 ADD_INVALID (list, g_strdup_printf ("Run ahead of method code at 0x%04x", ip_offset));
2147 }
2148 invalid_cil:
2149
2150 g_free (local_state);
2151 g_free (code);
2152 g_free (stack);
2153 if (signature->hasthis)
2154 g_free (params);
2155 return list;
2156 }
2157
2158 typedef struct {
2159 const char *name;
2160 guint64 offset;
2161 } FieldDesc;
2162
2163 typedef struct {
2164 const char *name;
2165 const FieldDesc *fields;
2166 } ClassDesc;
2167
2168 static const FieldDesc
2169 typebuilder_fields[] = {
2170 {"tname", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, name)},
2171 {"nspace", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, nspace)},
2172 {"parent", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, parent)},
2173 {"interfaces", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, interfaces)},
2174 {"methods", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, methods)},
2175 {"properties", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, properties)},
2176 {"fields", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, fields)},
2177 {"attrs", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, attrs)},
2178 {"table_idx", G_STRUCT_OFFSET (MonoReflectionTypeBuilder, table_idx)},
2179 {NULL, 0}
2180 };
2181
2182 static const FieldDesc
2183 modulebuilder_fields[] = {
2184 {"types", G_STRUCT_OFFSET (MonoReflectionModuleBuilder, types)},
2185 {"cattrs", G_STRUCT_OFFSET (MonoReflectionModuleBuilder, cattrs)},
2186 {"guid", G_STRUCT_OFFSET (MonoReflectionModuleBuilder, guid)},
2187 {"table_idx", G_STRUCT_OFFSET (MonoReflectionModuleBuilder, table_idx)},
2188 {NULL, 0}
2189 };
2190
2191 static const FieldDesc
2192 assemblybuilder_fields[] = {
2193 {"entry_point", G_STRUCT_OFFSET (MonoReflectionAssemblyBuilder, entry_point)},
2194 {"modules", G_STRUCT_OFFSET (MonoReflectionAssemblyBuilder, modules)},
2195 {"name", G_STRUCT_OFFSET (MonoReflectionAssemblyBuilder, name)},
2196 {"resources", G_STRUCT_OFFSET (MonoReflectionAssemblyBuilder, resources)},
2197 {"version", G_STRUCT_OFFSET (MonoReflectionAssemblyBuilder, version)},
2198 {"culture", G_STRUCT_OFFSET (MonoReflectionAssemblyBuilder, culture)},
2199 {NULL, 0}
2200 };
2201
2202 static const FieldDesc
2203 ctorbuilder_fields[] = {
2204 {"ilgen", G_STRUCT_OFFSET (MonoReflectionCtorBuilder, ilgen)},
2205 {"parameters", G_STRUCT_OFFSET (MonoReflectionCtorBuilder, parameters)},
2206 {"attrs", G_STRUCT_OFFSET (MonoReflectionCtorBuilder, attrs)},
2207 {"iattrs", G_STRUCT_OFFSET (MonoReflectionCtorBuilder, iattrs)},
2208 {"table_idx", G_STRUCT_OFFSET (MonoReflectionCtorBuilder, table_idx)},
2209 {"call_conv", G_STRUCT_OFFSET (MonoReflectionCtorBuilder, call_conv)},
2210 {"type", G_STRUCT_OFFSET (MonoReflectionCtorBuilder, type)},
2211 {NULL, 0}
2212 };
2213
2214 static const FieldDesc
2215 methodbuilder_fields[] = {
2216 {"mhandle", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, mhandle)},
2217 {"rtype", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, rtype)},
2218 {"parameters", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, parameters)},
2219 {"attrs", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, attrs)},
2220 {"iattrs", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, iattrs)},
2221 {"name", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, name)},
2222 {"table_idx", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, table_idx)},
2223 {"code", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, code)},
2224 {"ilgen", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, ilgen)},
2225 {"type", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, type)},
2226 {"pinfo", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, pinfo)},
2227 {"pi_dll", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, dll)},
2228 {"pi_entry", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, dllentry)},
2229 {"charset", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, charset)},
2230 {"extra_flags", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, extra_flags)},
2231 {"native_cc", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, native_cc)},
2232 {"call_conv", G_STRUCT_OFFSET (MonoReflectionMethodBuilder, call_conv)},
2233 {NULL, 0}
2234 };
2235
2236 static const FieldDesc
2237 fieldbuilder_fields[] = {
2238 {"attrs", G_STRUCT_OFFSET (MonoReflectionFieldBuilder, attrs)},
2239 {"type", G_STRUCT_OFFSET (MonoReflectionFieldBuilder, type)},
2240 {"name", G_STRUCT_OFFSET (MonoReflectionFieldBuilder, name)},
2241 {"def_value", G_STRUCT_OFFSET (MonoReflectionFieldBuilder, def_value)},
2242 {"offset", G_STRUCT_OFFSET (MonoReflectionFieldBuilder, offset)},
2243 {"table_idx", G_STRUCT_OFFSET (MonoReflectionFieldBuilder, table_idx)},
2244 {NULL, 0}
2245 };
2246
2247 static const FieldDesc
2248 propertybuilder_fields[] = {
2249 {"attrs", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, attrs)},
2250 {"name", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, name)},
2251 {"type", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, type)},
2252 {"parameters", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, parameters)},
2253 {"def_value", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, def_value)},
2254 {"set_method", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, set_method)},
2255 {"get_method", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, get_method)},
2256 {"table_idx", G_STRUCT_OFFSET (MonoReflectionPropertyBuilder, table_idx)},
2257 {NULL, 0}
2258 };
2259
2260 static const FieldDesc
2261 ilgenerator_fields[] = {
2262 {"code", G_STRUCT_OFFSET (MonoReflectionILGen, code)},
2263 {"code_len", G_STRUCT_OFFSET (MonoReflectionILGen, code_len)},
2264 {"max_stack", G_STRUCT_OFFSET (MonoReflectionILGen, max_stack)},
2265 {"cur_stack", G_STRUCT_OFFSET (MonoReflectionILGen, cur_stack)},
2266 {"locals", G_STRUCT_OFFSET (MonoReflectionILGen, locals)},
2267 {"ex_handlers", G_STRUCT_OFFSET (MonoReflectionILGen, ex_handlers)},
2268 {NULL, 0}
2269 };
2270
2271 static const FieldDesc
2272 ilexinfo_fields[] = {
2273 {"handlers", G_STRUCT_OFFSET (MonoILExceptionInfo, handlers)},
2274 {"start", G_STRUCT_OFFSET (MonoILExceptionInfo, start)},
2275 {"len", G_STRUCT_OFFSET (MonoILExceptionInfo, len)},
2276 {"end", G_STRUCT_OFFSET (MonoILExceptionInfo, label)},
2277 {NULL, 0}
2278 };
2279
2280 static const FieldDesc
2281 ilexblock_fields[] = {
2282 {"extype", G_STRUCT_OFFSET (MonoILExceptionBlock, extype)},
2283 {"type", G_STRUCT_OFFSET (MonoILExceptionBlock, type)},
2284 {"start", G_STRUCT_OFFSET (MonoILExceptionBlock, start)},
2285 {"len", G_STRUCT_OFFSET (MonoILExceptionBlock, len)},
2286 {"filter_offset", G_STRUCT_OFFSET (MonoILExceptionBlock, filter_offset)},
2287 {NULL, 0}
2288 };
2289
2290 static const ClassDesc
2291 emit_classes_to_check [] = {
2292 {"TypeBuilder", typebuilder_fields},
2293 {"ModuleBuilder", modulebuilder_fields},
2294 {"AssemblyBuilder", assemblybuilder_fields},
2295 {"ConstructorBuilder", ctorbuilder_fields},
2296 {"MethodBuilder", methodbuilder_fields},
2297 {"FieldBuilder", fieldbuilder_fields},
2298 {"PropertyBuilder", propertybuilder_fields},
2299 {"ILGenerator", ilgenerator_fields},
2300 {"ILExceptionBlock", ilexblock_fields},
2301 {"ILExceptionInfo", ilexinfo_fields},
2302 {NULL, NULL}
2303 };
2304
2305 static const FieldDesc
2306 monoevent_fields[] = {
2307 {"klass", G_STRUCT_OFFSET (MonoReflectionEvent, klass)},
2308 {"handle", G_STRUCT_OFFSET (MonoReflectionEvent, event)},
2309 {NULL, 0}
2310 };
2311
2312 static const FieldDesc
2313 monoproperty_fields[] = {
2314 {"klass", G_STRUCT_OFFSET (MonoReflectionProperty, klass)},
2315 {"prop", G_STRUCT_OFFSET (MonoReflectionProperty, property)},
2316 {NULL, 0}
2317 };
2318
2319 static const FieldDesc
2320 monofield_fields[] = {
2321 {"klass", G_STRUCT_OFFSET (MonoReflectionField, klass)},
2322 {"fhandle", G_STRUCT_OFFSET (MonoReflectionField, field)},
2323 {NULL, 0}
2324 };
2325
2326 static const FieldDesc
2327 monomethodinfo_fields[] = {
2328 {"parent", G_STRUCT_OFFSET (MonoMethodInfo, parent)},
2329 {"ret", G_STRUCT_OFFSET (MonoMethodInfo, ret)},
2330 {"attrs", G_STRUCT_OFFSET (MonoMethodInfo, attrs)},
2331 {"iattrs", G_STRUCT_OFFSET (MonoMethodInfo, implattrs)},
2332 {NULL, 0}
2333 };
2334
2335 static const FieldDesc
2336 monopropertyinfo_fields[] = {
2337 {"parent", G_STRUCT_OFFSET (MonoPropertyInfo, parent)},
2338 {"name", G_STRUCT_OFFSET (MonoPropertyInfo, name)},
2339 {"get_method", G_STRUCT_OFFSET (MonoPropertyInfo, get)},
2340 {"set_method", G_STRUCT_OFFSET (MonoPropertyInfo, set)},
2341 {"attrs", G_STRUCT_OFFSET (MonoPropertyInfo, attrs)},
2342 {NULL, 0}
2343 };
2344
2345 static const FieldDesc
2346 monomethod_fields[] = {
2347 {"mhandle", G_STRUCT_OFFSET (MonoReflectionMethod, method)},
2348 {NULL, 0}
2349 };
2350
2351 static const FieldDesc
2352 monocmethod_fields[] = {
2353 {"mhandle", G_STRUCT_OFFSET (MonoReflectionMethod, method)},
2354 {NULL, 0}
2355 };
2356
2357 static const FieldDesc
2358 pinfo_fields[] = {
2359 {"ClassImpl", G_STRUCT_OFFSET (MonoReflectionParameter, ClassImpl)},
2360 {"DefaultValueImpl", G_STRUCT_OFFSET (MonoReflectionParameter, DefaultValueImpl)},
2361 {"MemberImpl", G_STRUCT_OFFSET (MonoReflectionParameter, MemberImpl)},
2362 {"NameImpl", G_STRUCT_OFFSET (MonoReflectionParameter, NameImpl)},
2363 {"PositionImpl", G_STRUCT_OFFSET (MonoReflectionParameter, PositionImpl)},
2364 {"AttrsImpl", G_STRUCT_OFFSET (MonoReflectionParameter, AttrsImpl)},
2365 {NULL, 0}
2366 };
2367
2368 static const ClassDesc
2369 reflection_classes_to_check [] = {
2370 {"MonoEvent", monoevent_fields},
2371 {"MonoProperty", monoproperty_fields},
2372 {"MonoField", monofield_fields},
2373 {"MonoMethodInfo", monomethodinfo_fields},
2374 {"MonoPropertyInfo", monopropertyinfo_fields},
2375 {"MonoMethod", monomethod_fields},
2376 {"MonoCMethod", monocmethod_fields},
2377 {"ParameterInfo", pinfo_fields},
2378 {NULL, NULL}
2379 };
2380
2381 static FieldDesc
2382 enuminfo_fields[] = {
2383 {"utype", G_STRUCT_OFFSET (MonoEnumInfo, utype)},
2384 {"values", G_STRUCT_OFFSET (MonoEnumInfo, values)},
2385 {"names", G_STRUCT_OFFSET (MonoEnumInfo, names)},
2386 {NULL, 0}
2387 };
2388
2389 static FieldDesc
2390 delegate_fields[] = {
2391 {"target_type", G_STRUCT_OFFSET (MonoDelegate, target_type)},
2392 {"m_target", G_STRUCT_OFFSET (MonoDelegate, target)},
2393 {"method_name", G_STRUCT_OFFSET (MonoDelegate, method_name)},
2394 {"method_ptr", G_STRUCT_OFFSET (MonoDelegate, method_ptr)},
2395 {"delegate_trampoline", G_STRUCT_OFFSET (MonoDelegate, delegate_trampoline)},
2396 {"method_info", G_STRUCT_OFFSET (MonoDelegate, method_info)},
2397 {NULL, 0}
2398 };
2399
2400 static FieldDesc
2401 multicast_delegate_fields[] = {
2402 {"prev", G_STRUCT_OFFSET (MonoMulticastDelegate, prev)},
2403 {NULL, 0}
2404 };
2405
2406 static FieldDesc
2407 async_result_fields[] = {
2408 {"async_state", G_STRUCT_OFFSET (MonoAsyncResult, async_state)},
2409 {"handle", G_STRUCT_OFFSET (MonoAsyncResult, handle)},
2410 {"async_delegate", G_STRUCT_OFFSET (MonoAsyncResult, async_delegate)},
2411 {"data", G_STRUCT_OFFSET (MonoAsyncResult, data)},
2412 {"sync_completed", G_STRUCT_OFFSET (MonoAsyncResult, sync_completed)},
2413 {"completed", G_STRUCT_OFFSET (MonoAsyncResult, completed)},
2414 {"endinvoke_called", G_STRUCT_OFFSET (MonoAsyncResult, endinvoke_called)},
2415 {"async_callback", G_STRUCT_OFFSET (MonoAsyncResult, async_callback)},
2416 {NULL, 0}
2417 };
2418
2419 static FieldDesc
2420 exception_fields[] = {
2421 {"trace_ips", G_STRUCT_OFFSET (MonoException, trace_ips)},
2422 {"inner_exception", G_STRUCT_OFFSET (MonoException, inner_ex)},
2423 {"message", G_STRUCT_OFFSET (MonoException, message)},
2424 {"help_link", G_STRUCT_OFFSET (MonoException, help_link)},
2425 {"class_name", G_STRUCT_OFFSET (MonoException, class_name)},
2426 {"stack_trace", G_STRUCT_OFFSET (MonoException, stack_trace)},
2427 {"remote_stack_trace", G_STRUCT_OFFSET (MonoException, remote_stack_trace)},
2428 {"remote_stack_index", G_STRUCT_OFFSET (MonoException, remote_stack_index)},
2429 {"hresult", G_STRUCT_OFFSET (MonoException, hresult)},
2430 {"source", G_STRUCT_OFFSET (MonoException, source)},
2431 {NULL, 0}
2432 };
2433
2434 static const ClassDesc
2435 system_classes_to_check [] = {
2436 {"Exception", exception_fields},
2437 {"MonoEnumInfo", enuminfo_fields},
2438 {"Delegate", delegate_fields},
2439 {"MulticastDelegate", multicast_delegate_fields},
2440 {NULL, NULL}
2441 };
2442
2443 static FieldDesc
2444 stack_frame_fields [] = {
2445 {"ilOffset", G_STRUCT_OFFSET (MonoStackFrame, il_offset)},
2446 {"nativeOffset", G_STRUCT_OFFSET (MonoStackFrame, native_offset)},
2447 {"methodBase", G_STRUCT_OFFSET (MonoStackFrame, method)},
2448 {"fileName", G_STRUCT_OFFSET (MonoStackFrame, filename)},
2449 {"lineNumber", G_STRUCT_OFFSET (MonoStackFrame, line)},
2450 {"columnNumber", G_STRUCT_OFFSET (MonoStackFrame, column)},
2451 {NULL, 0}
2452 };
2453
2454 static const ClassDesc
2455 system_diagnostics_classes_to_check [] = {
2456 {"StackFrame", stack_frame_fields},
2457 {NULL, NULL}
2458 };
2459
2460 static FieldDesc
2461 mono_method_message_fields[] = {
2462 {"method", G_STRUCT_OFFSET (MonoMethodMessage, method)},
2463 {"args", G_STRUCT_OFFSET (MonoMethodMessage, args)},
2464 {"names", G_STRUCT_OFFSET (MonoMethodMessage, names)},
2465 {"arg_types", G_STRUCT_OFFSET (MonoMethodMessage, arg_types)},
2466 {"ctx", G_STRUCT_OFFSET (MonoMethodMessage, ctx)},
2467 {"rval", G_STRUCT_OFFSET (MonoMethodMessage, rval)},
2468 {"exc", G_STRUCT_OFFSET (MonoMethodMessage, exc)},
2469 {NULL, 0}
2470 };
2471
2472 static const ClassDesc
2473 messaging_classes_to_check [] = {
2474 {"AsyncResult", async_result_fields},
2475 {"MonoMethodMessage", mono_method_message_fields},
2476 {NULL, NULL}
2477 };
2478
2479 static FieldDesc
2480 transparent_proxy_fields[] = {
2481 {"_rp", G_STRUCT_OFFSET (MonoTransparentProxy, rp)},
2482 {"_class", G_STRUCT_OFFSET (MonoTransparentProxy, remote_class)},
2483 {NULL, 0}
2484 };
2485
2486 static FieldDesc
2487 real_proxy_fields[] = {
2488 {"class_to_proxy", G_STRUCT_OFFSET (MonoRealProxy, class_to_proxy)},
2489 {NULL, 0}
2490 };
2491
2492 static const ClassDesc
2493 proxy_classes_to_check [] = {
2494 {"TransparentProxy", transparent_proxy_fields},
2495 {"RealProxy", real_proxy_fields},
2496 {NULL, NULL}
2497 };
2498
2499 static FieldDesc
2500 wait_handle_fields[] = {
2501 {"os_handle", G_STRUCT_OFFSET (MonoWaitHandle, handle)},
2502 {"disposed", G_STRUCT_OFFSET (MonoWaitHandle, disposed)},
2503 {NULL, 0}
2504 };
2505
2506 static FieldDesc
2507 thread_fields[] = {
2508 {"system_thread_handle", G_STRUCT_OFFSET (MonoThread, handle)},
2509 {"threadpool_thread", G_STRUCT_OFFSET (MonoThread, threadpool_thread)},
2510 {"state", G_STRUCT_OFFSET (MonoThread, state)},
2511 {"abort_exc", G_STRUCT_OFFSET (MonoThread, abort_exc)},
2512 {"abort_state", G_STRUCT_OFFSET (MonoThread, abort_state)},
2513 {"thread_id", G_STRUCT_OFFSET (MonoThread, tid)},
2514 {NULL, 0}
2515 };
2516
2517 static const ClassDesc
2518 threading_classes_to_check [] = {
2519 {"Thread", thread_fields},
2520 {"WaitHandle", wait_handle_fields},
2521 {NULL, NULL}
2522 };
2523
2524 static const FieldDesc
2525 cinfo_fields[] = {
2526 {"datetime_format", G_STRUCT_OFFSET (MonoCultureInfo, datetime_format)},
2527 {"number_format", G_STRUCT_OFFSET (MonoCultureInfo, number_format)},
2528 {"textinfo", G_STRUCT_OFFSET (MonoCultureInfo, textinfo)},
2529 {"name", G_STRUCT_OFFSET (MonoCultureInfo, name)},
2530 {"displayname", G_STRUCT_OFFSET (MonoCultureInfo, displayname)},
2531 {"englishname", G_STRUCT_OFFSET (MonoCultureInfo, englishname)},
2532 {"nativename", G_STRUCT_OFFSET (MonoCultureInfo, nativename)},
2533 {"iso3lang", G_STRUCT_OFFSET (MonoCultureInfo, iso3lang)},
2534 {"iso2lang", G_STRUCT_OFFSET (MonoCultureInfo, iso2lang)},
2535 {"icu_name", G_STRUCT_OFFSET (MonoCultureInfo, icu_name)},
2536 {"win3lang", G_STRUCT_OFFSET (MonoCultureInfo, win3lang)},
2537 {"compareinfo", G_STRUCT_OFFSET (MonoCultureInfo, compareinfo)},
2538 {NULL, 0}
2539 };
2540
2541 static const FieldDesc
2542 dtfinfo_fields[] = {
2543 {"amDesignator", G_STRUCT_OFFSET (MonoDateTimeFormatInfo, AMDesignator)},
2544 {"pmDesignator", G_STRUCT_OFFSET (MonoDateTimeFormatInfo, PMDesignator)},
2545 {"dayNames", G_STRUCT_OFFSET (MonoDateTimeFormatInfo, DayNames)},
2546 {"monthNames", G_STRUCT_OFFSET (MonoDateTimeFormatInfo, MonthNames)},
2547 {NULL, 0}
2548 };
2549
2550 static const FieldDesc
2551 nfinfo_fields[] = {
2552 {"decimalFormats", G_STRUCT_OFFSET (MonoNumberFormatInfo, decimalFormats)},
2553 {"currencySymbol", G_STRUCT_OFFSET (MonoNumberFormatInfo, currencySymbol)},
2554 {"percentSymbol", G_STRUCT_OFFSET (MonoNumberFormatInfo, percentSymbol)},
2555 {"positiveSign", G_STRUCT_OFFSET (MonoNumberFormatInfo, positiveSign)},
2556 {NULL, 0}
2557 };
2558
2559 static const FieldDesc
2560 compinfo_fields[] = {
2561 {"lcid", G_STRUCT_OFFSET (MonoCompareInfo, lcid)},
2562 {"ICU_collator", G_STRUCT_OFFSET (MonoCompareInfo, ICU_collator)},
2563 {NULL, 0}
2564 };
2565
2566 static const FieldDesc
2567 sortkey_fields[] = {
2568 {"str", G_STRUCT_OFFSET (MonoSortKey, str)},
2569 {"options", G_STRUCT_OFFSET (MonoSortKey, options)},
2570 {"key", G_STRUCT_OFFSET (MonoSortKey, key)},
2571 {"lcid", G_STRUCT_OFFSET (MonoSortKey, lcid)},
2572 {NULL, 0}
2573 };
2574
2575 static const ClassDesc
2576 globalization_classes_to_check [] = {
2577 {"CultureInfo", cinfo_fields},
2578 {"DateTimeFormatInfo", dtfinfo_fields},
2579 {"NumberFormatInfo", nfinfo_fields},
2580 {"CompareInfo", compinfo_fields},
2581 {"SortKey", sortkey_fields},
2582 {NULL, NULL}
2583 };
2584
2585 static const FieldDesc
2586 safe_handle_fields[] ={
2587 {"handle", G_STRUCT_OFFSET (MonoSafeHandle, handle)},
2588 {NULL, 0}
2589 };
2590
2591 static const ClassDesc interop_classes_to_check [] = {
2592 {"SafeHandle", safe_handle_fields},
2593 {NULL, NULL}
2594 };
2595
2596 typedef struct {
2597 const char *name;
2598 const ClassDesc *types;
2599 } NameSpaceDesc;
2600
2601 static const NameSpaceDesc
2602 namespaces_to_check[] = {
2603 {"System.Runtime.Remoting.Proxies", proxy_classes_to_check},
2604 {"System.Runtime.Remoting.Messaging", messaging_classes_to_check},
2605 {"System.Reflection.Emit", emit_classes_to_check},
2606 {"System.Reflection", reflection_classes_to_check},
2607 {"System.Threading", threading_classes_to_check},
2608 {"System.Diagnostics", system_diagnostics_classes_to_check},
2609 {"System", system_classes_to_check},
2610 {"System.Globalization", globalization_classes_to_check},
2611 {"System.Runtime.InteropServices", interop_classes_to_check},
2612 {NULL, NULL}
2613 };
2614
2615 static char*
2616 check_corlib (MonoImage *corlib)
2617 {
2618 MonoClass *klass;
2619 MonoClassField *field;
2620 const FieldDesc *fdesc;
2621 const ClassDesc *cdesc;
2622 const NameSpaceDesc *ndesc;
2623 gint struct_offset;
2624 GString *result = NULL;
2625
2626 for (ndesc = namespaces_to_check; ndesc->name; ++ndesc) {
2627 for (cdesc = ndesc->types; cdesc->name; ++cdesc) {
2628 klass = mono_class_from_name (corlib, ndesc->name, cdesc->name);
2629 if (!klass) {
2630 if (!result)
2631 result = g_string_new ("");
2632 g_string_append_printf (result, "Cannot find class %s\n", cdesc->name);
2633 continue;
2634 }
2635 mono_class_init (klass);
2636 /*
2637 * FIXME: we should also check the size of valuetypes, or
2638 * we're going to have trouble when we access them in arrays.
2639 */
2640 if (klass->valuetype)
2641 struct_offset = sizeof (MonoObject);
2642 else
2643 struct_offset = 0;
2644 for (fdesc = cdesc->fields; fdesc->name; ++fdesc) {
2645 field = mono_class_get_field_from_name (klass, fdesc->name);
2646 if (!field || (field->offset != (fdesc->offset + struct_offset))) {
2647 if (!result)
2648 result = g_string_new ("");
2649 g_string_append_printf (result, "field `%s' mismatch in class %s (%ld + %ld != %ld)\n", fdesc->name, cdesc->name, (long) fdesc->offset, (long)struct_offset, (long) (field?field->offset:-1));
2650 }
2651 }
2652 }
2653 }
2654 if (result)
2655 return g_string_free (result, FALSE);
2656 return NULL;
2657 }
2658
2659 char*
2660 mono_verify_corlib () {
2661 return check_corlib (mono_defaults.corlib);
2662 }
2663
2664
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