2 * loader.c: Image Loader
5 * Paolo Molaro (lupus@ximian.com)
6 * Miguel de Icaza (miguel@ximian.com)
7 * Patrik Torstensson (patrik.torstensson@labs2.com)
9 * (C) 2001 Ximian, Inc.
11 * This file is used by the interpreter and the JIT engine to locate
12 * assemblies. Used to load AssemblyRef and later to resolve various
16 * This should keep track of the assembly versions that we are loading.
25 #include <mono/metadata/metadata.h>
26 #include <mono/metadata/image.h>
27 #include <mono/metadata/assembly.h>
28 #include <mono/metadata/tokentype.h>
29 #include <mono/metadata/cil-coff.h>
30 #include <mono/metadata/tabledefs.h>
31 #include <mono/metadata/metadata-internals.h>
32 #include <mono/metadata/loader.h>
33 #include <mono/metadata/class-internals.h>
34 #include <mono/metadata/debug-helpers.h>
35 #include <mono/metadata/reflection.h>
36 #include <mono/utils/mono-logger.h>
38 MonoDefaults mono_defaults;
41 * This lock protects the hash tables inside MonoImage used by the metadata
42 * loading functions in class.c and loader.c.
44 static CRITICAL_SECTION loader_mutex;
49 InitializeCriticalSection (&loader_mutex);
52 static MonoClassField*
53 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
54 MonoGenericContext *context)
57 MonoTableInfo *tables = image->tables;
59 guint32 nindex, class;
62 guint32 idx = mono_metadata_token_index (token);
65 MonoClassField *result = mono_lookup_dynamic_token (image, token);
66 *retklass = result->parent;
70 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
71 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
72 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
74 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
76 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
77 mono_metadata_decode_blob_size (ptr, &ptr);
78 /* we may want to check the signature here... */
81 case MONO_MEMBERREF_PARENT_TYPEREF:
82 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
84 g_warning ("Missing field %s in typeref index %d", fname, nindex);
87 mono_class_init (klass);
90 return mono_class_get_field_from_name (klass, fname);
91 case MONO_MEMBERREF_PARENT_TYPESPEC: {
92 /*guint32 bcols [MONO_TYPESPEC_SIZE];
96 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
97 bcols, MONO_TYPESPEC_SIZE);
98 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
99 len = mono_metadata_decode_value (ptr, &ptr);
100 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
102 klass = mono_class_from_mono_type (type);
103 mono_class_init (klass);
104 g_print ("type in sig: %s\n", klass->name);*/
105 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
106 mono_class_init (klass);
109 return mono_class_get_field_from_name (klass, fname);
112 g_warning ("field load from %x", class);
118 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
119 MonoGenericContext *context)
123 MonoClassField *field;
125 if (image->dynamic) {
126 MonoClassField *result = mono_lookup_dynamic_token (image, token);
127 *retklass = result->parent;
132 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
133 *retklass = field->parent;
134 mono_loader_unlock ();
137 mono_loader_unlock ();
139 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
140 field = field_from_memberref (image, token, retklass, context);
142 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
145 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
151 field = mono_class_get_field (k, token);
155 if (!field->parent->generic_class)
156 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
157 mono_loader_unlock ();
162 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
166 if (sig1->hasthis != sig2->hasthis ||
167 sig1->sentinelpos != sig2->sentinelpos)
170 for (i = 0; i < sig1->sentinelpos; i++) {
171 MonoType *p1 = sig1->params[i];
172 MonoType *p2 = sig2->params[i];
174 /*if (p1->attrs != p2->attrs)
177 if (!mono_metadata_type_equal (p1, p2))
181 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
187 find_method (MonoClass *klass, MonoClass *ic, const char* name, MonoMethodSignature *sig)
190 MonoClass *sclass = klass;
191 char *qname, *fqname;
194 qname = g_strconcat (ic->name, ".", name, NULL);
195 if (ic->name_space && ic->name_space [0])
196 fqname = g_strconcat (ic->name_space, ".", ic->name, ".", name, NULL);
200 qname = fqname = NULL;
203 for (i = 0; i < klass->method.count; ++i) {
204 MonoMethod *m = klass->methods [i];
206 if (!((fqname && !strcmp (m->name, fqname)) ||
207 (qname && !strcmp (m->name, qname)) || !strcmp (m->name, name)))
210 if (sig->call_convention == MONO_CALL_VARARG) {
211 if (mono_metadata_signature_vararg_match (sig, m->signature))
214 if (mono_metadata_signature_equal (sig, m->signature))
219 if (name [0] == '.' && (strcmp (name, ".ctor") == 0 || strcmp (name, ".cctor") == 0))
222 klass = klass->parent;
229 * token is the method_ref or method_def token used in a call IL instruction.
232 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
234 int table = mono_metadata_token_table (token);
235 int idx = mono_metadata_token_index (token);
236 guint32 cols [MONO_MEMBERREF_SIZE];
237 MonoMethodSignature *sig;
240 /* !table is for wrappers: we should really assign their own token to them */
241 if (!table || table == MONO_TABLE_METHOD)
242 return method->signature;
244 if (table == MONO_TABLE_METHODSPEC) {
245 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
246 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
248 g_assert (method->is_inflated);
250 return method->signature;
253 if (method->klass->generic_class)
254 return method->signature;
257 /* FIXME: This might be incorrect for vararg methods */
258 return method->signature;
260 if (!(sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token)))) {
261 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
263 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
264 mono_metadata_decode_blob_size (ptr, &ptr);
265 sig = mono_metadata_parse_method_signature_full (image, context, 0, ptr, NULL);
266 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
269 sig = mono_class_inflate_generic_signature (image, sig, context);
275 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
277 return mono_method_get_signature_full (method, image, token, NULL);
281 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *context)
283 MonoClass *klass = NULL;
284 MonoMethod *method = NULL;
285 MonoTableInfo *tables = image->tables;
287 guint32 nindex, class;
288 MonoGenericClass *gclass = NULL;
289 MonoGenericContainer *container = NULL;
291 MonoMethodSignature *sig;
294 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
295 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
296 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
297 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
298 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
300 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
303 case MONO_MEMBERREF_PARENT_TYPEREF:
304 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
306 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
310 case MONO_MEMBERREF_PARENT_TYPESPEC:
311 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
313 g_warning ("Missing method %s in assembly %s typespec index %d", mname, image->name, nindex);
317 case MONO_MEMBERREF_PARENT_TYPEDEF:
318 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
320 g_warning ("Missing method %s in assembly %s typedef index %d", mname, image->name, nindex);
324 case MONO_MEMBERREF_PARENT_METHODDEF:
325 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
327 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
328 g_assert_not_reached ();
332 if (klass->generic_class) {
333 gclass = klass->generic_class;
334 klass = gclass->container_class;
336 if (klass->generic_container)
337 container = klass->generic_container;
338 mono_class_init (klass);
340 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
341 mono_metadata_decode_blob_size (ptr, &ptr);
342 sig = mono_metadata_parse_method_signature_full (image, (MonoGenericContext *) container, 0, ptr, NULL);
345 case MONO_MEMBERREF_PARENT_TYPEREF:
346 method = find_method (klass, NULL, mname, sig);
348 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
349 mono_metadata_free_method_signature (sig);
351 case MONO_MEMBERREF_PARENT_TYPESPEC: {
355 type = &klass->byval_arg;
357 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
358 method = find_method (klass, NULL, mname, sig);
360 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
361 else if (klass->generic_class && (klass != method->klass))
362 method = mono_class_inflate_generic_method (
363 method, klass->generic_class->context, klass);
364 mono_metadata_free_method_signature (sig);
368 result = (MonoMethod *)g_new0 (MonoMethodPInvoke, 1);
369 result->klass = mono_class_get (image, MONO_TOKEN_TYPE_SPEC | nindex);
370 result->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
371 result->signature = sig;
372 result->name = mname;
374 if (!strcmp (mname, ".ctor")) {
375 /* we special-case this in the runtime. */
379 if (!strcmp (mname, "Set")) {
380 g_assert (sig->hasthis);
381 g_assert (type->data.array->rank + 1 == sig->param_count);
382 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
386 if (!strcmp (mname, "Get")) {
387 g_assert (sig->hasthis);
388 g_assert (type->data.array->rank == sig->param_count);
389 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
393 if (!strcmp (mname, "Address")) {
394 g_assert (sig->hasthis);
395 g_assert (type->data.array->rank == sig->param_count);
396 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
400 g_assert_not_reached ();
403 case MONO_MEMBERREF_PARENT_TYPEDEF:
404 method = find_method (klass, NULL, mname, sig);
406 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
407 mono_metadata_free_method_signature (sig);
410 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
411 g_assert_not_reached ();
415 method = mono_class_inflate_generic_method (method, gclass->context, gclass);
421 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
423 MonoMethod *method, *inflated;
424 MonoTableInfo *tables = image->tables;
425 MonoGenericContext *new_context = NULL;
426 MonoGenericMethod *gmethod;
427 MonoGenericContainer *container = NULL;
429 guint32 cols [MONO_METHODSPEC_SIZE];
430 guint32 token, param_count;
432 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
433 token = cols [MONO_METHODSPEC_METHOD];
434 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
435 token = MONO_TOKEN_METHOD_DEF | (token >> MONO_METHODDEFORREF_BITS);
437 token = MONO_TOKEN_MEMBER_REF | (token >> MONO_METHODDEFORREF_BITS);
439 method = mono_get_method (image, token, NULL);
441 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
443 mono_metadata_decode_value (ptr, &ptr);
445 param_count = mono_metadata_decode_value (ptr, &ptr);
447 g_assert (param_count);
448 if (method->is_inflated)
449 container = ((MonoMethodNormal *) ((MonoMethodInflated *) method)->declaring)->generic_container;
451 container = ((MonoMethodNormal *) method)->generic_container;
452 g_assert (container && container->is_method);
455 g_assert (context->container);
456 container->parent = context->container;
457 if (container->parent->is_method)
458 container->parent = container->parent->parent;
461 gmethod = g_new0 (MonoGenericMethod, 1);
462 gmethod->container = container;
464 gmethod->inst = mono_metadata_parse_generic_inst (
465 image, (MonoGenericContext *) container, param_count, ptr, &ptr);
468 gmethod->inst = mono_metadata_inflate_generic_inst (gmethod->inst, context);
470 if (!container->method_hash)
471 container->method_hash = g_hash_table_new (
472 (GHashFunc)mono_metadata_generic_method_hash, (GEqualFunc)mono_metadata_generic_method_equal);
474 inflated = g_hash_table_lookup (container->method_hash, gmethod);
481 new_context = g_new0 (MonoGenericContext, 1);
482 new_context->container = container;
483 new_context->gmethod = gmethod;
485 context = new_context;
487 new_context = g_new0 (MonoGenericContext, 1);
488 new_context->container = container;
489 new_context->gmethod = gmethod;
490 new_context->gclass = context->gclass;
492 context = new_context;
495 mono_stats.generics_metadata_size += sizeof (MonoGenericMethod) +
496 sizeof (MonoGenericContext) + param_count * sizeof (MonoType);
498 inflated = mono_class_inflate_generic_method (method, context, NULL);
499 g_hash_table_insert (container->method_hash, gmethod, inflated);
502 context->gclass = inflated->klass->generic_class;
506 typedef struct MonoDllMap MonoDllMap;
515 static GHashTable *global_dll_map;
518 mono_dllmap_lookup_hash (GHashTable *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
519 MonoDllMap *map, *tmp;
528 map = g_hash_table_lookup (dll_map, dll);
530 mono_loader_unlock ();
533 *rdll = map->target? map->target: dll;
535 for (tmp = map->next; tmp; tmp = tmp->next) {
536 if (strcmp (func, tmp->name) == 0) {
540 mono_loader_unlock ();
545 mono_loader_unlock ();
550 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
553 if (assembly && assembly->dll_map) {
554 res = mono_dllmap_lookup_hash (assembly->dll_map, dll, func, rdll, rfunc);
558 return mono_dllmap_lookup_hash (global_dll_map, dll, func, rdll, rfunc);
562 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
563 MonoDllMap *map, *entry;
564 GHashTable *dll_map = NULL;
570 global_dll_map = g_hash_table_new (g_str_hash, g_str_equal);
571 dll_map = global_dll_map;
573 if (!assembly->dll_map)
574 assembly->dll_map = g_hash_table_new (g_str_hash, g_str_equal);
575 dll_map = assembly->dll_map;
578 map = g_hash_table_lookup (dll_map, dll);
580 map = g_new0 (MonoDllMap, 1);
581 map->dll = g_strdup (dll);
583 map->target = g_strdup (tdll);
584 g_hash_table_insert (dll_map, map->dll, map);
587 entry = g_new0 (MonoDllMap, 1);
588 entry->name = g_strdup (func);
590 entry->target = g_strdup (tfunc);
591 if (tdll && map->target && strcmp (map->target, tdll))
592 entry->dll = g_strdup (tdll);
593 entry->next = map->next;
597 mono_loader_unlock ();
601 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
603 MonoImage *image = method->klass->image;
604 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
605 MonoTableInfo *tables = image->tables;
606 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
607 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
608 guint32 im_cols [MONO_IMPLMAP_SIZE];
610 const char *import = NULL;
611 const char *orig_scope;
612 const char *new_scope;
613 char *full_name, *file_name;
615 GModule *gmodule = NULL;
617 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
622 if (method->klass->image->dynamic) {
623 MonoReflectionMethodAux *method_aux =
624 g_hash_table_lookup (
625 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
629 import = method_aux->dllentry;
630 orig_scope = method_aux->dll;
633 if (!piinfo->implmap_idx)
636 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
638 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
639 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
640 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
641 orig_scope = mono_metadata_string_heap (image, scope_token);
644 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
646 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
647 "DllImport attempting to load: '%s'.", new_scope);
654 /* we allow a special name to dlopen from the running process namespace */
655 if (strcmp (new_scope, "Internal") == 0)
656 gmodule = g_module_open (NULL, G_MODULE_BIND_LAZY);
659 * Try loading the module using a variety of names
661 for (i = 0; i < 3; ++i) {
664 /* Try the original name */
665 file_name = g_strdup (new_scope);
668 /* Try trimming the .dll extension */
669 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
670 file_name = g_strdup (new_scope);
671 file_name [strlen (new_scope) - 4] = '\0';
677 if (strstr (new_scope, "lib") != new_scope) {
678 file_name = g_strdup_printf ("lib%s", new_scope);
686 full_name = g_module_build_path (NULL, file_name);
687 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
688 "DllImport loading location: '%s'.", full_name);
689 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
691 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
692 "DllImport error loading library: '%s'.",
699 full_name = g_module_build_path (".", file_name);
700 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
701 "DllImport loading library: '%s'.", full_name);
702 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
704 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
705 "DllImport error loading library '%s'.",
712 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
713 "DllImport loading: '%s'.", file_name);
714 gmodule=g_module_open (file_name, G_MODULE_BIND_LAZY);
716 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
717 "DllImport error loading library '%s'.",
729 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
730 "DllImport unable to load library '%s'.",
734 *exc_class = "DllNotFoundException";
735 *exc_arg = new_scope;
740 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
741 g_module_symbol (gmodule, import, &piinfo->addr);
745 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
746 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
747 mangled_name = g_strconcat (import, "W", NULL);
748 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
749 g_free (mangled_name);
752 g_module_symbol (gmodule, import, &piinfo->addr);
754 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
755 g_module_symbol (gmodule, import, &piinfo->addr);
757 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
759 mangled_name = g_strconcat (import, "A", NULL);
760 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
761 g_free (mangled_name);
764 g_module_symbol (gmodule, import, &piinfo->addr);
769 #ifdef PLATFORM_WIN32
770 /* Try the stdcall mangled name */
772 /* FIX: Compute this correctly */
773 mangled_name = g_strdup_printf ("%s@%d", import, method->signature->param_count * sizeof (gpointer));
774 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
775 g_free (mangled_name);
778 mangled_name = g_strdup_printf ("_%s@%d", import, method->signature->param_count * sizeof (gpointer));
779 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
780 g_free (mangled_name);
787 *exc_class = "EntryPointNotFoundException";
796 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
797 MonoGenericContext *context)
800 int table = mono_metadata_token_table (token);
801 int idx = mono_metadata_token_index (token);
802 MonoTableInfo *tables = image->tables;
803 MonoGenericContainer *generic_container = NULL, *container = NULL;
804 const char *sig = NULL;
806 guint32 cols [MONO_TYPEDEF_SIZE];
809 return mono_lookup_dynamic_token (image, token);
811 if (table != MONO_TABLE_METHOD) {
812 MonoGenericContainer *generic_container = NULL;
814 g_assert (context->container);
815 generic_container = context->container;
817 if (table == MONO_TABLE_METHODSPEC)
818 return method_from_methodspec (image, context, idx);
819 if (table != MONO_TABLE_MEMBERREF)
820 g_print("got wrong token: 0x%08x\n", token);
821 g_assert (table == MONO_TABLE_MEMBERREF);
822 result = method_from_memberref (image, idx, context);
827 mono_metadata_decode_row (&tables [table], idx - 1, cols, 6);
829 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
830 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
831 result = (MonoMethod *)g_new0 (MonoMethodPInvoke, 1);
833 result = (MonoMethod *)g_new0 (MonoMethodNormal, 1);
836 result->klass = klass;
837 result->flags = cols [2];
838 result->iflags = cols [1];
839 result->token = token;
840 result->name = mono_metadata_string_heap (image, cols [3]);
843 container = klass->generic_container;
845 if (!(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
846 (!(cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) || cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
847 generic_container = mono_metadata_load_generic_params (image, token, container);
848 if (generic_container)
849 container = generic_container;
852 if (!sig) /* already taken from the methodref */
853 sig = mono_metadata_blob_heap (image, cols [4]);
854 size = mono_metadata_decode_blob_size (sig, &sig);
855 result->signature = mono_metadata_parse_method_signature_full (
856 image, (MonoGenericContext *) container, idx, sig, NULL);
858 if (!result->klass) {
859 guint32 type = mono_metadata_typedef_from_method (image, token);
860 result->klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
863 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
864 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
865 result->string_ctor = 1;
867 result->signature->pinvoke = 1;
868 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
869 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
870 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
871 MonoCallConvention conv = 0;
873 result->signature->pinvoke = 1;
874 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
875 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
877 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
878 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
879 conv = MONO_CALL_DEFAULT;
881 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
884 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
885 conv = MONO_CALL_STDCALL;
887 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
888 conv = MONO_CALL_THISCALL;
890 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
891 conv = MONO_CALL_FASTCALL;
893 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
894 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
896 g_warning ("unsupported calling convention");
897 g_assert_not_reached ();
899 result->signature->call_convention = conv;
901 if (result->signature->generic_param_count) {
902 MonoMethodSignature *sig = result->signature;
904 for (i = 0; i < sig->generic_param_count; i++) {
905 generic_container->type_params [i].method = result;
907 mono_class_from_generic_parameter (
908 &generic_container->type_params [i], image, TRUE);
911 if (sig->ret->type == MONO_TYPE_MVAR) {
912 int num = sig->ret->data.generic_param->num;
913 sig->ret->data.generic_param = &generic_container->type_params [num];
916 for (i = 0; i < sig->param_count; i++) {
917 MonoType *t = sig->params [i];
918 if (t->type == MONO_TYPE_MVAR) {
919 int num = t->data.generic_param->num;
920 sig->params [i]->data.generic_param = &generic_container->type_params [num];
925 /* FIXME: lazyness for generics too, but how? */
926 if (!result->klass->dummy && !(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
927 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
928 gpointer loc = mono_image_rva_map (image, cols [0]);
930 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (
931 image, (MonoGenericContext *) container, loc);
934 ((MonoMethodNormal *) result)->generic_container = generic_container;
941 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
943 return mono_get_method_full (image, token, klass, NULL);
947 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
948 MonoGenericContext *context)
952 /* We do everything inside the lock to prevent creation races */
956 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
957 mono_loader_unlock ();
961 result = mono_get_method_from_token (image, token, klass, context);
963 if (!(result && result->is_inflated))
964 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
966 mono_loader_unlock ();
972 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
973 MonoGenericContext *context)
975 MonoMethod *method, *result;
976 MonoClass *ic = NULL;
977 MonoGenericClass *gclass = NULL;
981 method = mono_get_method_from_token (image, token, NULL, context);
983 mono_loader_unlock ();
987 mono_class_init (constrained_class);
988 method = mono_get_inflated_method (method);
990 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
993 if (constrained_class->generic_class) {
994 gclass = constrained_class->generic_class;
995 constrained_class = gclass->container_class;
998 result = find_method (constrained_class, ic, method->name, method->signature);
1000 g_warning ("Missing method %s in assembly %s token %x", method->name,
1001 image->name, token);
1004 result = mono_class_inflate_generic_method (result, gclass->context, gclass->klass);
1006 mono_loader_unlock ();
1011 mono_free_method (MonoMethod *method)
1013 mono_metadata_free_method_signature (method->signature);
1014 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && ((MonoMethodNormal *)method)->header) {
1015 mono_metadata_free_mh (((MonoMethodNormal *)method)->header);
1022 mono_method_get_param_names (MonoMethod *method, const char **names)
1025 MonoClass *klass = method->klass;
1026 MonoTableInfo *methodt;
1027 MonoTableInfo *paramt;
1029 if (!method->signature->param_count)
1031 for (i = 0; i < method->signature->param_count; ++i)
1034 if (klass->generic_class) /* copy the names later */
1037 mono_class_init (klass);
1039 if (klass->image->dynamic) {
1040 MonoReflectionMethodAux *method_aux =
1041 g_hash_table_lookup (
1042 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1043 if (method_aux && method_aux->param_names) {
1044 for (i = 0; i < method->signature->param_count; ++i)
1045 if (method_aux->param_names [i + 1])
1046 names [i] = method_aux->param_names [i + 1];
1051 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1052 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1053 for (i = 0; i < klass->method.count; ++i) {
1054 if (method == klass->methods [i]) {
1055 guint32 idx = klass->method.first + i;
1056 guint32 cols [MONO_PARAM_SIZE];
1057 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1059 if (idx + 1 < methodt->rows)
1060 lastp = mono_metadata_decode_row_col (methodt, idx + 1, MONO_METHOD_PARAMLIST);
1062 lastp = paramt->rows + 1;
1063 for (i = param_index; i < lastp; ++i) {
1064 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1065 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1066 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1074 mono_method_get_param_token (MonoMethod *method, int index)
1077 MonoClass *klass = method->klass;
1078 MonoTableInfo *methodt;
1080 if (klass->generic_class)
1081 g_assert_not_reached ();
1083 mono_class_init (klass);
1085 if (klass->image->dynamic) {
1086 g_assert_not_reached ();
1089 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1090 for (i = 0; i < klass->method.count; ++i) {
1091 if (method == klass->methods [i]) {
1092 guint32 idx = klass->method.first + i;
1093 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1095 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1103 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1106 MonoClass *klass = method->klass;
1107 MonoTableInfo *methodt;
1108 MonoTableInfo *paramt;
1110 for (i = 0; i < method->signature->param_count + 1; ++i)
1113 if (method->klass->image->dynamic) {
1114 MonoReflectionMethodAux *method_aux =
1115 g_hash_table_lookup (
1116 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1117 if (method_aux && method_aux->param_marshall) {
1118 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1119 for (i = 0; i < method->signature->param_count + 1; ++i)
1120 if (dyn_specs [i]) {
1121 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1122 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1128 mono_class_init (klass);
1130 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1131 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1133 for (i = 0; i < klass->method.count; ++i) {
1134 if (method == klass->methods [i]) {
1135 guint32 idx = klass->method.first + i;
1136 guint32 cols [MONO_PARAM_SIZE];
1137 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1139 if (idx + 1 < methodt->rows)
1140 lastp = mono_metadata_decode_row_col (methodt, idx + 1, MONO_METHOD_PARAMLIST);
1142 lastp = paramt->rows + 1;
1144 for (i = param_index; i < lastp; ++i) {
1145 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1147 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1149 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1151 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1161 mono_method_has_marshal_info (MonoMethod *method)
1164 MonoClass *klass = method->klass;
1165 MonoTableInfo *methodt;
1166 MonoTableInfo *paramt;
1168 if (method->klass->image->dynamic) {
1169 MonoReflectionMethodAux *method_aux =
1170 g_hash_table_lookup (
1171 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1172 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1174 for (i = 0; i < method->signature->param_count + 1; ++i)
1181 mono_class_init (klass);
1183 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1184 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1186 for (i = 0; i < klass->method.count; ++i) {
1187 if (method == klass->methods [i]) {
1188 guint32 idx = klass->method.first + i;
1189 guint32 cols [MONO_PARAM_SIZE];
1190 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1192 if (idx + 1 < methodt->rows)
1193 lastp = mono_metadata_decode_row_col (methodt, idx + 1, MONO_METHOD_PARAMLIST);
1195 lastp = paramt->rows + 1;
1197 for (i = param_index; i < lastp; ++i) {
1198 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1200 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1210 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1213 g_assert (method != NULL);
1214 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1216 if (!(l = g_list_nth (((MonoMethodWrapper *)method)->data, id - 1)))
1217 g_assert_not_reached ();
1223 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1224 g_error ("stack walk not installed");
1227 static MonoStackWalkImpl stack_walk = default_stack_walk;
1230 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1232 stack_walk (func, FALSE, user_data);
1236 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1238 stack_walk (func, TRUE, user_data);
1242 mono_install_stack_walk (MonoStackWalkImpl func)
1248 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1250 MonoMethod **dest = data;
1252 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1258 mono_method_get_last_managed (void)
1260 MonoMethod *m = NULL;
1261 stack_walk (last_managed, FALSE, &m);
1266 mono_loader_lock (void)
1268 EnterCriticalSection (&loader_mutex);
1272 mono_loader_unlock (void)
1274 LeaveCriticalSection (&loader_mutex);
1277 MonoMethodSignature*
1278 mono_method_signature (MonoMethod *method)
1280 return method->signature;
1284 mono_method_get_name (MonoMethod *method)
1286 return method->name;
1290 mono_method_get_class (MonoMethod *method)
1292 return method->klass;
1296 mono_method_get_token (MonoMethod *method)
1298 return method->token;
1302 mono_method_get_header (MonoMethod *method)
1308 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1311 if (G_LIKELY (mn->header))
1317 if (method->klass->dummy || (method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
1320 mono_loader_lock ();
1323 mono_loader_unlock ();
1327 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1328 idx = mono_metadata_token_index (method->token);
1329 img = method->klass->image;
1330 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1331 loc = mono_image_rva_map (img, rva);
1335 mn->header = mono_metadata_parse_mh_full (img, (MonoGenericContext *) mn->generic_container, loc);
1337 mono_loader_unlock ();
1342 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1345 *iflags = method->iflags;
1346 return method->flags;