6 * Paolo Molaro (lupus@ximian.com)
7 * Miguel de Icaza (miguel@ximian.com)
8 * Patrik Torstensson (patrik.torstensson@labs2.com)
10 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
11 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
12 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
14 * This file is used by the interpreter and the JIT engine to locate
15 * assemblies. Used to load AssemblyRef and later to resolve various
19 * This should keep track of the assembly versions that we are loading.
21 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
28 #include <mono/metadata/metadata.h>
29 #include <mono/metadata/image.h>
30 #include <mono/metadata/assembly.h>
31 #include <mono/metadata/tokentype.h>
32 #include <mono/metadata/tabledefs.h>
33 #include <mono/metadata/metadata-internals.h>
34 #include <mono/metadata/loader.h>
35 #include <mono/metadata/class-internals.h>
36 #include <mono/metadata/debug-helpers.h>
37 #include <mono/metadata/reflection.h>
38 #include <mono/metadata/profiler-private.h>
39 #include <mono/metadata/exception.h>
40 #include <mono/metadata/marshal.h>
41 #include <mono/metadata/lock-tracer.h>
42 #include <mono/metadata/verify-internals.h>
43 #include <mono/utils/mono-logger-internals.h>
44 #include <mono/utils/mono-dl.h>
45 #include <mono/utils/mono-membar.h>
46 #include <mono/utils/mono-counters.h>
47 #include <mono/utils/mono-error-internals.h>
48 #include <mono/utils/mono-tls.h>
49 #include <mono/utils/mono-path.h>
51 MonoDefaults mono_defaults;
54 * This lock protects the hash tables inside MonoImage used by the metadata
55 * loading functions in class.c and loader.c.
57 * See domain-internals.h for locking policy in combination with the
60 static MonoCoopMutex loader_mutex;
61 static mono_mutex_t global_loader_data_mutex;
62 static gboolean loader_lock_inited;
65 static gint32 inflated_signatures_size;
66 static gint32 memberref_sig_cache_size;
67 static gint32 methods_size;
68 static gint32 signatures_size;
71 * This TLS variable holds how many times the current thread has acquired the loader
74 MonoNativeTlsKey loader_lock_nest_id;
76 static void dllmap_cleanup (void);
79 global_loader_data_lock (void)
81 mono_locks_os_acquire (&global_loader_data_mutex, LoaderGlobalDataLock);
85 global_loader_data_unlock (void)
87 mono_locks_os_release (&global_loader_data_mutex, LoaderGlobalDataLock);
93 static gboolean inited;
96 mono_coop_mutex_init_recursive (&loader_mutex);
97 mono_os_mutex_init_recursive (&global_loader_data_mutex);
98 loader_lock_inited = TRUE;
100 mono_native_tls_alloc (&loader_lock_nest_id, NULL);
102 mono_counters_init ();
103 mono_counters_register ("Inflated signatures size",
104 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_signatures_size);
105 mono_counters_register ("Memberref signature cache size",
106 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &memberref_sig_cache_size);
107 mono_counters_register ("MonoMethod size",
108 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &methods_size);
109 mono_counters_register ("MonoMethodSignature size",
110 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &signatures_size);
117 mono_loader_cleanup (void)
121 mono_native_tls_free (loader_lock_nest_id);
123 mono_coop_mutex_destroy (&loader_mutex);
124 mono_os_mutex_destroy (&global_loader_data_mutex);
125 loader_lock_inited = FALSE;
129 * find_cached_memberref_sig:
131 * Return a cached copy of the memberref signature identified by SIG_IDX.
132 * We use a gpointer since the cache stores both MonoTypes and MonoMethodSignatures.
133 * A cache is needed since the type/signature parsing routines allocate everything
134 * from a mempool, so without a cache, multiple requests for the same signature would
135 * lead to unbounded memory growth. For normal methods/fields this is not a problem
136 * since the resulting methods/fields are cached, but inflated methods/fields cannot
138 * LOCKING: Acquires the loader lock.
141 find_cached_memberref_sig (MonoImage *image, guint32 sig_idx)
145 mono_image_lock (image);
146 res = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
147 mono_image_unlock (image);
153 cache_memberref_sig (MonoImage *image, guint32 sig_idx, gpointer sig)
157 mono_image_lock (image);
158 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
160 /* Somebody got in before us */
164 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (sig_idx), sig);
165 /* An approximation based on glib 2.18 */
166 InterlockedAdd (&memberref_sig_cache_size, sizeof (gpointer) * 4);
168 mono_image_unlock (image);
173 static MonoClassField*
174 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
175 MonoGenericContext *context, MonoError *error)
177 MonoClass *klass = NULL;
178 MonoClassField *field;
179 MonoTableInfo *tables = image->tables;
182 guint32 nindex, class_index;
185 guint32 idx = mono_metadata_token_index (token);
189 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
190 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
191 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
193 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
195 if (!mono_verifier_verify_memberref_field_signature (image, cols [MONO_MEMBERREF_SIGNATURE], NULL)) {
196 mono_error_set_bad_image (error, image, "Bad field '%u' signature 0x%08x", class_index, token);
200 switch (class_index) {
201 case MONO_MEMBERREF_PARENT_TYPEDEF:
202 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
204 case MONO_MEMBERREF_PARENT_TYPEREF:
205 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
207 case MONO_MEMBERREF_PARENT_TYPESPEC:
208 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, context, error);
211 mono_error_set_bad_image (error, image, "Bad field field '%u' signature 0x%08x", class_index, token);
217 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
218 mono_metadata_decode_blob_size (ptr, &ptr);
219 /* we may want to check the signature here... */
222 mono_error_set_field_load (error, klass, fname, "Bad field signature class token %08x field name %s token %08x", class_index, fname, token);
226 /* FIXME: This needs a cache, especially for generic instances, since
227 * we ask mono_metadata_parse_type_checked () to allocates everything from a mempool.
228 * FIXME part2, mono_metadata_parse_type_checked actually allows for a transient type instead.
229 * FIXME part3, transient types are not 100% transient, so we need to take care of that first.
231 sig_type = (MonoType *)find_cached_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE]);
233 MonoError inner_error;
234 sig_type = mono_metadata_parse_type_checked (image, NULL, 0, FALSE, ptr, &ptr, &inner_error);
235 if (sig_type == NULL) {
236 mono_error_set_field_load (error, klass, fname, "Could not parse field '%s' signature %08x due to: %s", fname, token, mono_error_get_message (&inner_error));
237 mono_error_cleanup (&inner_error);
240 sig_type = (MonoType *)cache_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE], sig_type);
243 mono_class_init (klass); /*FIXME is this really necessary?*/
246 field = mono_class_get_field_from_name_full (klass, fname, sig_type);
249 mono_error_set_field_load (error, klass, fname, "Could not find field '%s'", fname);
256 * mono_field_from_token:
257 * \deprecated use the \c _checked variant
258 * Notes: runtime code MUST not use this function
261 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context)
264 MonoClassField *res = mono_field_from_token_checked (image, token, retklass, context, &error);
265 g_assert (mono_error_ok (&error));
270 mono_field_from_token_checked (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context, MonoError *error)
274 MonoClassField *field;
278 if (image_is_dynamic (image)) {
279 MonoClassField *result;
280 MonoClass *handle_class;
283 MonoError inner_error;
284 result = (MonoClassField *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context, &inner_error);
285 mono_error_cleanup (&inner_error);
286 // This checks the memberref type as well
287 if (!result || handle_class != mono_defaults.fieldhandle_class) {
288 mono_error_set_bad_image (error, image, "Bad field token 0x%08x", token);
291 *retklass = result->parent;
295 if ((field = (MonoClassField *)mono_conc_hashtable_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
296 *retklass = field->parent;
300 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF) {
301 field = field_from_memberref (image, token, retklass, context, error);
303 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
305 mono_error_set_bad_image (error, image, "Invalid field token 0x%08x", token);
308 k = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
315 field = mono_class_get_field (k, token);
317 mono_error_set_bad_image (error, image, "Could not resolve field token 0x%08x", token);
321 if (field && field->parent && !mono_class_is_ginst (field->parent) && !mono_class_is_gtd (field->parent)) {
322 mono_image_lock (image);
323 mono_conc_hashtable_insert (image->field_cache, GUINT_TO_POINTER (token), field);
324 mono_image_unlock (image);
331 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
335 if (sig1->hasthis != sig2->hasthis ||
336 sig1->sentinelpos != sig2->sentinelpos)
339 for (i = 0; i < sig1->sentinelpos; i++) {
340 MonoType *p1 = sig1->params[i];
341 MonoType *p2 = sig2->params[i];
343 /*if (p1->attrs != p2->attrs)
346 if (!mono_metadata_type_equal (p1, p2))
350 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
356 find_method_in_class (MonoClass *klass, const char *name, const char *qname, const char *fqname,
357 MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
361 /* Search directly in the metadata to avoid calling setup_methods () */
364 /* FIXME: !mono_class_is_ginst (from_class) condition causes test failures. */
365 if (klass->type_token && !image_is_dynamic (klass->image) && !klass->methods && !klass->rank && klass == from_class && !mono_class_is_ginst (from_class)) {
366 int first_idx = mono_class_get_first_method_idx (klass);
367 int mcount = mono_class_get_method_count (klass);
368 for (i = 0; i < mcount; ++i) {
369 guint32 cols [MONO_METHOD_SIZE];
372 MonoMethodSignature *other_sig;
374 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, first_idx + i, cols, MONO_METHOD_SIZE);
376 m_name = mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]);
378 if (!((fqname && !strcmp (m_name, fqname)) ||
379 (qname && !strcmp (m_name, qname)) ||
380 (name && !strcmp (m_name, name))))
383 method = mono_get_method_checked (klass->image, MONO_TOKEN_METHOD_DEF | (first_idx + i + 1), klass, NULL, error);
384 if (!mono_error_ok (error)) //bail out if we hit a loader error
387 other_sig = mono_method_signature_checked (method, error);
388 if (!mono_error_ok (error)) //bail out if we hit a loader error
390 if (other_sig && (sig->call_convention != MONO_CALL_VARARG) && mono_metadata_signature_equal (sig, other_sig))
396 mono_class_setup_methods (klass); /* FIXME don't swallow the error here. */
398 We can't fail lookup of methods otherwise the runtime will fail with MissingMethodException instead of TypeLoadException.
399 See mono/tests/generic-type-load-exception.2.il
400 FIXME we should better report this error to the caller
402 if (!klass->methods || mono_class_has_failure (klass)) {
403 mono_error_set_type_load_class (error, klass, "Could not find method due to a type load error"); //FIXME get the error from the class
407 int mcount = mono_class_get_method_count (klass);
408 for (i = 0; i < mcount; ++i) {
409 MonoMethod *m = klass->methods [i];
410 MonoMethodSignature *msig;
412 /* We must cope with failing to load some of the types. */
416 if (!((fqname && !strcmp (m->name, fqname)) ||
417 (qname && !strcmp (m->name, qname)) ||
418 (name && !strcmp (m->name, name))))
420 msig = mono_method_signature_checked (m, error);
421 if (!mono_error_ok (error)) //bail out if we hit a loader error
427 if (sig->call_convention == MONO_CALL_VARARG) {
428 if (mono_metadata_signature_vararg_match (sig, msig))
431 if (mono_metadata_signature_equal (sig, msig))
437 return mono_class_get_method_by_index (from_class, i);
442 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
445 char *qname, *fqname, *class_name;
446 gboolean is_interface;
447 MonoMethod *result = NULL;
448 MonoClass *initial_class = in_class;
451 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
454 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
456 qname = g_strconcat (class_name, ".", name, NULL);
457 if (ic->name_space && ic->name_space [0])
458 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
462 class_name = qname = fqname = NULL;
465 g_assert (from_class);
466 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class, error);
467 if (result || !mono_error_ok (error))
470 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
474 * This happens when we fail to lazily load the interfaces of one of the types.
475 * On such case we can't just bail out since user code depends on us trying harder.
477 if (from_class->interface_offsets_count != in_class->interface_offsets_count) {
478 in_class = in_class->parent;
479 from_class = from_class->parent;
483 for (i = 0; i < in_class->interface_offsets_count; i++) {
484 MonoClass *in_ic = in_class->interfaces_packed [i];
485 MonoClass *from_ic = from_class->interfaces_packed [i];
486 char *ic_qname, *ic_fqname, *ic_class_name;
488 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
489 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
490 if (in_ic->name_space && in_ic->name_space [0])
491 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
495 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic, error);
496 g_free (ic_class_name);
499 if (result || !mono_error_ok (error))
503 in_class = in_class->parent;
504 from_class = from_class->parent;
506 g_assert (!in_class == !from_class);
509 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class, error);
511 //we did not find the method
512 if (!result && mono_error_ok (error)) {
513 char *desc = mono_signature_get_desc (sig, FALSE);
514 mono_error_set_method_load (error, initial_class, name, "Could not find method with signature %s", desc);
525 static MonoMethodSignature*
526 inflate_generic_signature_checked (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
528 MonoMethodSignature *res;
536 res = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)sig->param_count) * sizeof (MonoType*));
537 res->param_count = sig->param_count;
538 res->sentinelpos = -1;
539 res->ret = mono_class_inflate_generic_type_checked (sig->ret, context, error);
540 if (!mono_error_ok (error))
542 is_open = mono_class_is_open_constructed_type (res->ret);
543 for (i = 0; i < sig->param_count; ++i) {
544 res->params [i] = mono_class_inflate_generic_type_checked (sig->params [i], context, error);
545 if (!mono_error_ok (error))
549 is_open = mono_class_is_open_constructed_type (res->params [i]);
551 res->hasthis = sig->hasthis;
552 res->explicit_this = sig->explicit_this;
553 res->call_convention = sig->call_convention;
554 res->pinvoke = sig->pinvoke;
555 res->generic_param_count = sig->generic_param_count;
556 res->sentinelpos = sig->sentinelpos;
557 res->has_type_parameters = is_open;
558 res->is_inflated = 1;
563 mono_metadata_free_type (res->ret);
564 for (i = 0; i < sig->param_count; ++i) {
566 mono_metadata_free_type (res->params [i]);
573 * mono_inflate_generic_signature:
575 * Inflate \p sig with \p context, and return a canonical copy. On error, set \p error, and return NULL.
578 mono_inflate_generic_signature (MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
580 MonoMethodSignature *res, *cached;
582 res = inflate_generic_signature_checked (NULL, sig, context, error);
583 if (!mono_error_ok (error))
585 cached = mono_metadata_get_inflated_signature (res, context);
587 mono_metadata_free_inflated_signature (res);
591 static MonoMethodHeader*
592 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context, MonoError *error)
594 size_t locals_size = sizeof (gpointer) * header->num_locals;
595 size_t clauses_size = header->num_clauses * sizeof (MonoExceptionClause);
596 size_t header_size = MONO_SIZEOF_METHOD_HEADER + locals_size + clauses_size;
597 MonoMethodHeader *res = (MonoMethodHeader *)g_malloc0 (header_size);
598 res->num_locals = header->num_locals;
599 res->clauses = (MonoExceptionClause *) &res->locals [res->num_locals] ;
600 memcpy (res->clauses, header->clauses, clauses_size);
602 res->code = header->code;
603 res->code_size = header->code_size;
604 res->max_stack = header->max_stack;
605 res->num_clauses = header->num_clauses;
606 res->init_locals = header->init_locals;
608 res->is_transient = TRUE;
612 for (int i = 0; i < header->num_locals; ++i) {
613 res->locals [i] = mono_class_inflate_generic_type_checked (header->locals [i], context, error);
617 if (res->num_clauses) {
618 for (int i = 0; i < header->num_clauses; ++i) {
619 MonoExceptionClause *clause = &res->clauses [i];
620 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
622 clause->data.catch_class = mono_class_inflate_generic_class_checked (clause->data.catch_class, context, error);
634 * mono_method_get_signature_full:
635 * \p token is the method ref/def/spec token used in a \c call IL instruction.
636 * \deprecated use the \c _checked variant
637 * Notes: runtime code MUST not use this function
640 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
643 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, context, &error);
644 mono_error_cleanup (&error);
649 mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error)
651 int table = mono_metadata_token_table (token);
652 int idx = mono_metadata_token_index (token);
654 guint32 cols [MONO_MEMBERREF_SIZE];
655 MonoMethodSignature *sig;
660 /* !table is for wrappers: we should really assign their own token to them */
661 if (!table || table == MONO_TABLE_METHOD)
662 return mono_method_signature_checked (method, error);
664 if (table == MONO_TABLE_METHODSPEC) {
665 /* the verifier (do_invoke_method) will turn the NULL into a verifier error */
666 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || !method->is_inflated) {
667 mono_error_set_bad_image (error, image, "Method is a pinvoke or open generic");
671 return mono_method_signature_checked (method, error);
674 if (mono_class_is_ginst (method->klass))
675 return mono_method_signature_checked (method, error);
677 if (image_is_dynamic (image)) {
678 sig = mono_reflection_lookup_signature (image, method, token, error);
682 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
683 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
685 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
687 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
688 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
689 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
691 //FIXME include the verification error
692 mono_error_set_bad_image (error, image, "Bad method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
696 ptr = mono_metadata_blob_heap (image, sig_idx);
697 mono_metadata_decode_blob_size (ptr, &ptr);
699 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
703 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
705 /* FIXME: we probably should verify signature compat in the dynamic case too*/
706 if (!mono_verifier_is_sig_compatible (image, method, sig)) {
707 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
708 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
710 mono_error_set_bad_image (error, image, "Incompatible method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
716 MonoMethodSignature *cached;
718 /* This signature is not owned by a MonoMethod, so need to cache */
719 sig = inflate_generic_signature_checked (image, sig, context, error);
720 if (!mono_error_ok (error))
723 cached = mono_metadata_get_inflated_signature (sig, context);
725 mono_metadata_free_inflated_signature (sig);
727 InterlockedAdd (&inflated_signatures_size, mono_metadata_signature_size (cached));
731 g_assert (mono_error_ok (error));
736 * mono_method_get_signature:
737 * \p token is the method_ref/def/spec token used in a call IL instruction.
738 * \deprecated use the \c _checked variant
739 * Notes: runtime code MUST not use this function
742 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
745 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, NULL, &error);
746 mono_error_cleanup (&error);
750 /* this is only for the typespec array methods */
752 mono_method_search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
756 mono_class_setup_methods (klass);
757 g_assert (!mono_class_has_failure (klass)); /*FIXME this should not fail, right?*/
758 int mcount = mono_class_get_method_count (klass);
759 for (i = 0; i < mcount; ++i) {
760 MonoMethod *method = klass->methods [i];
761 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
768 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
769 gboolean *used_context, MonoError *error)
771 MonoClass *klass = NULL;
772 MonoMethod *method = NULL;
773 MonoTableInfo *tables = image->tables;
775 guint32 nindex, class_index, sig_idx;
777 MonoMethodSignature *sig;
782 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
783 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
784 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
785 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
786 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
788 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
791 * Whether we actually used the `typespec_context' or not.
792 * This is used to tell our caller whether or not it's safe to insert the returned
793 * method into a cache.
796 *used_context = class_index == MONO_MEMBERREF_PARENT_TYPESPEC;
798 switch (class_index) {
799 case MONO_MEMBERREF_PARENT_TYPEREF:
800 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
804 case MONO_MEMBERREF_PARENT_TYPESPEC:
806 * Parse the TYPESPEC in the parent's context.
808 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context, error);
812 case MONO_MEMBERREF_PARENT_TYPEDEF:
813 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
817 case MONO_MEMBERREF_PARENT_METHODDEF: {
818 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, NULL, error);
824 mono_error_set_bad_image (error, image, "Memberref parent unknown: class: %d, index %d", class_index, nindex);
829 mono_class_init (klass);
831 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
833 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
834 mono_error_set_method_load (error, klass, mname, "Verifier rejected method signature");
838 ptr = mono_metadata_blob_heap (image, sig_idx);
839 mono_metadata_decode_blob_size (ptr, &ptr);
841 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
843 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
847 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
850 switch (class_index) {
851 case MONO_MEMBERREF_PARENT_TYPEREF:
852 case MONO_MEMBERREF_PARENT_TYPEDEF:
853 method = find_method (klass, NULL, mname, sig, klass, error);
856 case MONO_MEMBERREF_PARENT_TYPESPEC: {
859 type = &klass->byval_arg;
861 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
862 MonoClass *in_class = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->container_class : klass;
863 method = find_method (in_class, NULL, mname, sig, klass, error);
867 /* we're an array and we created these methods already in klass in mono_class_init () */
868 method = mono_method_search_in_array_class (klass, mname, sig);
872 mono_error_set_bad_image (error, image,"Memberref parent unknown: class: %d, index %d", class_index, nindex);
876 if (!method && mono_error_ok (error)) {
877 char *msig = mono_signature_get_desc (sig, FALSE);
878 GString *s = g_string_new (mname);
879 if (sig->generic_param_count)
880 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
881 g_string_append_printf (s, "(%s)", msig);
883 msig = g_string_free (s, FALSE);
885 mono_error_set_method_load (error, klass, mname, "Could not find method %s", msig);
893 g_assert (!mono_error_ok (error));
898 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx, MonoError *error)
902 MonoTableInfo *tables = image->tables;
903 MonoGenericContext new_context;
904 MonoGenericInst *inst;
906 guint32 cols [MONO_METHODSPEC_SIZE];
907 guint32 token, nindex, param_count;
911 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
912 token = cols [MONO_METHODSPEC_METHOD];
913 nindex = token >> MONO_METHODDEFORREF_BITS;
915 if (!mono_verifier_verify_methodspec_signature (image, cols [MONO_METHODSPEC_SIGNATURE], NULL)) {
916 mono_error_set_bad_image (error, image, "Bad method signals signature 0x%08x", idx);
920 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
922 mono_metadata_decode_value (ptr, &ptr);
924 param_count = mono_metadata_decode_value (ptr, &ptr);
926 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr, error);
930 if (context && inst->is_open) {
931 inst = mono_metadata_inflate_generic_inst (inst, context, error);
932 if (!mono_error_ok (error))
936 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF) {
937 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context, error);
941 method = method_from_memberref (image, nindex, context, NULL, error);
947 klass = method->klass;
949 if (mono_class_is_ginst (klass)) {
950 g_assert (method->is_inflated);
951 method = ((MonoMethodInflated *) method)->declaring;
954 new_context.class_inst = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->context.class_inst : NULL;
955 new_context.method_inst = inst;
957 method = mono_class_inflate_generic_method_full_checked (method, klass, &new_context, error);
969 static MonoDllMap *global_dll_map;
972 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
980 global_loader_data_lock ();
983 * we use the first entry we find that matches, since entries from
984 * the config file are prepended to the list and we document that the
987 for (; dll_map; dll_map = dll_map->next) {
988 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
989 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
991 } else if (strcmp (dll_map->dll, dll)) {
994 if (!found && dll_map->target) {
995 *rdll = dll_map->target;
997 /* we don't quit here, because we could find a full
998 * entry that matches also function and that has priority.
1001 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
1002 *rdll = dll_map->target;
1003 *rfunc = dll_map->target_func;
1008 global_loader_data_unlock ();
1013 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
1016 if (assembly && assembly->dll_map) {
1017 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
1021 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
1025 * mono_dllmap_insert:
1026 * \param assembly if NULL, this is a global mapping, otherwise the remapping of the dynamic library will only apply to the specified assembly
1027 * \param dll The name of the external library, as it would be found in the \c DllImport declaration. If prefixed with <code>i:</code> the matching of the library name is done without case sensitivity
1028 * \param func if not null, the mapping will only applied to the named function (the value of <code>EntryPoint</code>)
1029 * \param tdll The name of the library to map the specified \p dll if it matches.
1030 * \param tfunc The name of the function that replaces the invocation. If NULL, it is replaced with a copy of \p func.
1032 * LOCKING: Acquires the loader lock.
1034 * This function is used to programatically add \c DllImport remapping in either
1035 * a specific assembly, or as a global remapping. This is done by remapping
1036 * references in a \c DllImport attribute from the \p dll library name into the \p tdll
1037 * name. If the \p dll name contains the prefix <code>i:</code>, the comparison of the
1038 * library name is done without case sensitivity.
1040 * If you pass \p func, this is the name of the \c EntryPoint in a \c DllImport if specified
1041 * or the name of the function as determined by \c DllImport. If you pass \p func, you
1042 * must also pass \p tfunc which is the name of the target function to invoke on a match.
1046 * <code>mono_dllmap_insert (NULL, "i:libdemo.dll", NULL, relocated_demo_path, NULL);</code>
1048 * The above will remap \c DllImport statements for \c libdemo.dll and \c LIBDEMO.DLL to
1049 * the contents of \c relocated_demo_path for all assemblies in the Mono process.
1051 * NOTE: This can be called before the runtime is initialized, for example from
1052 * \c mono_config_parse.
1055 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc)
1059 mono_loader_init ();
1062 entry = (MonoDllMap *)g_malloc0 (sizeof (MonoDllMap));
1063 entry->dll = dll? g_strdup (dll): NULL;
1064 entry->target = tdll? g_strdup (tdll): NULL;
1065 entry->func = func? g_strdup (func): NULL;
1066 entry->target_func = tfunc? g_strdup (tfunc): (func? g_strdup (func): NULL);
1068 global_loader_data_lock ();
1069 entry->next = global_dll_map;
1070 global_dll_map = entry;
1071 global_loader_data_unlock ();
1073 entry = (MonoDllMap *)mono_image_alloc0 (assembly, sizeof (MonoDllMap));
1074 entry->dll = dll? mono_image_strdup (assembly, dll): NULL;
1075 entry->target = tdll? mono_image_strdup (assembly, tdll): NULL;
1076 entry->func = func? mono_image_strdup (assembly, func): NULL;
1077 entry->target_func = tfunc? mono_image_strdup (assembly, tfunc): (func? mono_image_strdup (assembly, func): NULL);
1079 mono_image_lock (assembly);
1080 entry->next = assembly->dll_map;
1081 assembly->dll_map = entry;
1082 mono_image_unlock (assembly);
1087 free_dllmap (MonoDllMap *map)
1090 MonoDllMap *next = map->next;
1093 g_free (map->target);
1095 g_free (map->target_func);
1102 dllmap_cleanup (void)
1104 free_dllmap (global_dll_map);
1105 global_dll_map = NULL;
1108 static GHashTable *global_module_map;
1111 cached_module_load (const char *name, int flags, char **err)
1117 global_loader_data_lock ();
1118 if (!global_module_map)
1119 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1120 res = (MonoDl *)g_hash_table_lookup (global_module_map, name);
1122 global_loader_data_unlock ();
1125 res = mono_dl_open (name, flags, err);
1127 g_hash_table_insert (global_module_map, g_strdup (name), res);
1128 global_loader_data_unlock ();
1133 mono_loader_register_module (const char *name, MonoDl *module)
1135 if (!global_module_map)
1136 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1137 g_hash_table_insert (global_module_map, g_strdup (name), module);
1140 static MonoDl *internal_module;
1143 is_absolute_path (const char *path)
1146 if (!strncmp (path, "@executable_path/", 17) || !strncmp (path, "@loader_path/", 13) ||
1147 !strncmp (path, "@rpath/", 7))
1150 return g_path_is_absolute (path);
1154 * mono_lookup_pinvoke_call:
1157 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1159 MonoImage *image = method->klass->image;
1160 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1161 MonoTableInfo *tables = image->tables;
1162 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1163 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1164 guint32 im_cols [MONO_IMPLMAP_SIZE];
1165 guint32 scope_token;
1166 const char *import = NULL;
1167 const char *orig_scope;
1168 const char *new_scope;
1170 char *full_name, *file_name, *found_name = NULL;
1172 MonoDl *module = NULL;
1173 gboolean cached = FALSE;
1174 gpointer addr = NULL;
1176 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1184 return piinfo->addr;
1186 if (image_is_dynamic (method->klass->image)) {
1187 MonoReflectionMethodAux *method_aux =
1188 (MonoReflectionMethodAux *)g_hash_table_lookup (
1189 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1193 import = method_aux->dllentry;
1194 orig_scope = method_aux->dll;
1197 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
1200 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1202 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
1205 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1206 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1207 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1208 orig_scope = mono_metadata_string_heap (image, scope_token);
1211 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1214 mono_image_lock (image);
1215 if (!image->pinvoke_scopes) {
1216 image->pinvoke_scopes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1217 image->pinvoke_scope_filenames = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1219 module = (MonoDl *)g_hash_table_lookup (image->pinvoke_scopes, new_scope);
1220 found_name = (char *)g_hash_table_lookup (image->pinvoke_scope_filenames, new_scope);
1221 mono_image_unlock (image);
1225 found_name = g_strdup (found_name);
1229 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1230 "DllImport attempting to load: '%s'.", new_scope);
1232 /* we allow a special name to dlopen from the running process namespace */
1233 if (strcmp (new_scope, "__Internal") == 0){
1234 if (internal_module == NULL)
1235 internal_module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1236 module = internal_module;
1241 * Try loading the module using a variety of names
1243 for (i = 0; i < 5; ++i) {
1244 char *base_name = NULL, *dir_name = NULL;
1245 gboolean is_absolute = is_absolute_path (new_scope);
1249 /* Try the original name */
1250 file_name = g_strdup (new_scope);
1253 /* Try trimming the .dll extension */
1254 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1255 file_name = g_strdup (new_scope);
1256 file_name [strlen (new_scope) - 4] = '\0';
1263 dir_name = g_path_get_dirname (new_scope);
1264 base_name = g_path_get_basename (new_scope);
1265 if (strstr (base_name, "lib") != base_name) {
1266 char *tmp = g_strdup_printf ("lib%s", base_name);
1269 file_name = g_strdup_printf ("%s%s%s", dir_name, G_DIR_SEPARATOR_S, base_name);
1272 } else if (strstr (new_scope, "lib") != new_scope) {
1273 file_name = g_strdup_printf ("lib%s", new_scope);
1278 if (!is_absolute && mono_dl_get_system_dir ()) {
1279 dir_name = (char*)mono_dl_get_system_dir ();
1280 file_name = g_path_get_basename (new_scope);
1286 #ifndef TARGET_WIN32
1287 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1288 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1289 !g_ascii_strcasecmp ("user32", new_scope) ||
1290 !g_ascii_strcasecmp ("kernel", new_scope)) {
1291 file_name = g_strdup ("libMonoSupportW.so");
1295 #ifndef TARGET_WIN32
1302 dir_name = g_path_get_dirname (file_name);
1304 base_name = g_path_get_basename (file_name);
1307 if (!module && is_absolute) {
1308 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1310 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1311 "DllImport error loading library '%s': '%s'.",
1312 file_name, error_msg);
1315 found_name = g_strdup (file_name);
1319 if (!module && !is_absolute) {
1323 for (j = 0; j < 3; ++j) {
1328 mdirname = g_path_get_dirname (image->name);
1330 case 1: /* @executable_path@/../lib */
1334 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1336 char *base, *newbase;
1339 resolvedname = mono_path_resolve_symlinks (buf);
1341 base = g_path_get_dirname (resolvedname);
1342 newbase = g_path_get_dirname(base);
1343 mdirname = g_strdup_printf ("%s/lib", newbase);
1345 g_free (resolvedname);
1352 case 2: /* @executable_path@/../Libraries */
1356 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1358 char *base, *newbase;
1361 resolvedname = mono_path_resolve_symlinks (buf);
1363 base = g_path_get_dirname (resolvedname);
1364 newbase = g_path_get_dirname(base);
1365 mdirname = g_strdup_printf ("%s/Libraries", newbase);
1367 g_free (resolvedname);
1379 while ((full_name = mono_dl_build_path (mdirname, file_name, &iter))) {
1380 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1382 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1383 "DllImport error loading library '%s': '%s'.",
1384 full_name, error_msg);
1387 found_name = g_strdup (full_name);
1403 char *file_or_base = is_absolute ? base_name : file_name;
1404 while ((full_name = mono_dl_build_path (dir_name, file_or_base, &iter))) {
1405 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1407 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1408 "DllImport error loading library '%s': '%s'.",
1409 full_name, error_msg);
1412 found_name = g_strdup (full_name);
1421 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1423 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1424 "DllImport error loading library '%s': '%s'.",
1425 file_name, error_msg);
1427 found_name = g_strdup (file_name);
1442 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1443 "DllImport unable to load library '%s'.",
1448 *exc_class = "DllNotFoundException";
1449 *exc_arg = new_scope;
1455 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1456 "DllImport loaded library '%s'.", found_name);
1457 mono_image_lock (image);
1458 if (!g_hash_table_lookup (image->pinvoke_scopes, new_scope)) {
1459 g_hash_table_insert (image->pinvoke_scopes, g_strdup (new_scope), module);
1460 g_hash_table_insert (image->pinvoke_scope_filenames, g_strdup (new_scope), g_strdup (found_name));
1462 mono_image_unlock (image);
1465 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1466 "DllImport searching in: '%s' ('%s').", new_scope, found_name);
1467 g_free (found_name);
1470 if (import && import [0] == '#' && isdigit (import [1])) {
1474 id = strtol (import + 1, &end, 10);
1475 if (id > 0 && *end == '\0')
1479 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1480 "Searching for '%s'.", import);
1482 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1483 error_msg = mono_dl_symbol (module, import, &addr);
1485 char *mangled_name = NULL, *mangled_name2 = NULL;
1488 int mangle_param_count;
1494 * Search using a variety of mangled names
1496 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1497 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1498 gboolean need_param_count = FALSE;
1500 if (mangle_stdcall > 0)
1501 need_param_count = TRUE;
1503 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1508 mangled_name = (char*)import;
1509 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1510 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1511 /* Try the mangled name first */
1512 if (mangle_charset == 0)
1513 mangled_name = g_strconcat (import, "W", NULL);
1515 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1517 if (mangle_charset == 0)
1518 mangled_name = g_strconcat (import, "W", NULL);
1520 /* Try the mangled name last */
1521 if (mangle_charset == 1)
1522 mangled_name = g_strconcat (import, "A", NULL);
1525 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1527 /* Try the mangled name last */
1528 if (mangle_charset == 1)
1529 mangled_name = g_strconcat (import, "A", NULL);
1534 if (mangle_param_count == 0)
1535 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1537 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1538 param_count = mangle_param_count;
1540 /* Try the stdcall mangled name */
1542 * gcc under windows creates mangled names without the underscore, but MS.NET
1543 * doesn't support it, so we doesn't support it either.
1545 if (mangle_stdcall == 1)
1546 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1548 mangled_name2 = mangled_name;
1550 mangled_name2 = mangled_name;
1553 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1554 "Probing '%s'.", mangled_name2);
1556 error_msg = mono_dl_symbol (module, mangled_name2, &addr);
1559 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1560 "Found as '%s'.", mangled_name2);
1562 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1563 "Could not find '%s' due to '%s'.", mangled_name2, error_msg);
1568 if (mangled_name != mangled_name2)
1569 g_free (mangled_name2);
1570 if (mangled_name != import)
1571 g_free (mangled_name);
1580 *exc_class = "EntryPointNotFoundException";
1585 piinfo->addr = addr;
1590 * LOCKING: assumes the loader lock to be taken.
1593 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1594 MonoGenericContext *context, gboolean *used_context, MonoError *error)
1597 int table = mono_metadata_token_table (token);
1598 int idx = mono_metadata_token_index (token);
1599 MonoTableInfo *tables = image->tables;
1600 MonoGenericContainer *generic_container = NULL, *container = NULL;
1601 const char *sig = NULL;
1602 guint32 cols [MONO_TYPEDEF_SIZE];
1606 if (image_is_dynamic (image)) {
1607 MonoClass *handle_class;
1609 result = (MonoMethod *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context, error);
1610 mono_error_assert_ok (error);
1612 // This checks the memberref type as well
1613 if (result && handle_class != mono_defaults.methodhandle_class) {
1614 mono_error_set_bad_image (error, image, "Bad method token 0x%08x on dynamic image", token);
1620 if (table != MONO_TABLE_METHOD) {
1621 if (table == MONO_TABLE_METHODSPEC) {
1622 if (used_context) *used_context = TRUE;
1623 return method_from_methodspec (image, context, idx, error);
1625 if (table != MONO_TABLE_MEMBERREF) {
1626 mono_error_set_bad_image (error, image, "Bad method token 0x%08x.", token);
1629 return method_from_memberref (image, idx, context, used_context, error);
1632 if (used_context) *used_context = FALSE;
1634 if (idx > image->tables [MONO_TABLE_METHOD].rows) {
1635 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (out of bounds).", token);
1640 guint32 type = mono_metadata_typedef_from_method (image, token);
1642 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (could not find corresponding typedef).", token);
1645 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
1650 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1652 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1653 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1654 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethodPInvoke));
1656 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethod));
1657 InterlockedAdd (&methods_size, sizeof (MonoMethod));
1660 InterlockedIncrement (&mono_stats.method_count);
1663 result->klass = klass;
1664 result->flags = cols [2];
1665 result->iflags = cols [1];
1666 result->token = token;
1667 result->name = mono_metadata_string_heap (image, cols [3]);
1669 if (!sig) /* already taken from the methodref */
1670 sig = mono_metadata_blob_heap (image, cols [4]);
1671 /* size = */ mono_metadata_decode_blob_size (sig, &sig);
1673 container = mono_class_try_get_generic_container (klass);
1676 * load_generic_params does a binary search so only call it if the method
1680 generic_container = mono_metadata_load_generic_params (image, token, container);
1682 if (generic_container) {
1683 result->is_generic = TRUE;
1684 generic_container->owner.method = result;
1685 generic_container->is_anonymous = FALSE; // Method is now known, container is no longer anonymous
1686 /*FIXME put this before the image alloc*/
1687 if (!mono_metadata_load_generic_param_constraints_checked (image, token, generic_container, error))
1690 container = generic_container;
1693 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1694 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1695 result->string_ctor = 1;
1696 } else if (cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1697 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1700 /* IJW is P/Invoke with a predefined function pointer. */
1701 if (image->is_module_handle && (cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
1702 piinfo->addr = mono_image_rva_map (image, cols [0]);
1703 g_assert (piinfo->addr);
1706 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1707 /* Native methods can have no map. */
1708 if (piinfo->implmap_idx)
1709 piinfo->piflags = mono_metadata_decode_row_col (&tables [MONO_TABLE_IMPLMAP], piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1712 if (generic_container)
1713 mono_method_set_generic_container (result, generic_container);
1722 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1725 MonoMethod *result = mono_get_method_checked (image, token, klass, NULL, &error);
1726 mono_error_cleanup (&error);
1731 * mono_get_method_full:
1734 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1735 MonoGenericContext *context)
1738 MonoMethod *result = mono_get_method_checked (image, token, klass, context, &error);
1739 mono_error_cleanup (&error);
1744 mono_get_method_checked (MonoImage *image, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error)
1746 MonoMethod *result = NULL;
1747 gboolean used_context = FALSE;
1749 /* We do everything inside the lock to prevent creation races */
1753 mono_image_lock (image);
1755 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD) {
1756 if (!image->method_cache)
1757 image->method_cache = g_hash_table_new (NULL, NULL);
1758 result = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1759 } else if (!image_is_dynamic (image)) {
1760 if (!image->methodref_cache)
1761 image->methodref_cache = g_hash_table_new (NULL, NULL);
1762 result = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1764 mono_image_unlock (image);
1770 result = mono_get_method_from_token (image, token, klass, context, &used_context, error);
1774 mono_image_lock (image);
1775 if (!used_context && !result->is_inflated) {
1776 MonoMethod *result2 = NULL;
1778 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1779 result2 = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1780 else if (!image_is_dynamic (image))
1781 result2 = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1784 mono_image_unlock (image);
1788 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1789 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)), result);
1790 else if (!image_is_dynamic (image))
1791 g_hash_table_insert (image->methodref_cache, GINT_TO_POINTER (token), result);
1794 mono_image_unlock (image);
1800 get_method_constrained (MonoImage *image, MonoMethod *method, MonoClass *constrained_class, MonoGenericContext *context, MonoError *error)
1803 MonoClass *ic = NULL;
1804 MonoGenericContext *method_context = NULL;
1805 MonoMethodSignature *sig, *original_sig;
1809 mono_class_init (constrained_class);
1810 original_sig = sig = mono_method_signature_checked (method, error);
1815 if (method->is_inflated && sig->generic_param_count) {
1816 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1817 sig = mono_method_signature_checked (imethod->declaring, error); /*We assume that if the inflated method signature is valid, the declaring method is too*/
1820 method_context = mono_method_get_context (method);
1824 * We must inflate the signature with the class instantiation to work on
1825 * cases where a class inherit from a generic type and the override replaces
1826 * any type argument which a concrete type. See #325283.
1828 if (method_context->class_inst) {
1829 MonoGenericContext ctx;
1830 ctx.method_inst = NULL;
1831 ctx.class_inst = method_context->class_inst;
1832 /*Fixme, property propagate this error*/
1833 sig = inflate_generic_signature_checked (method->klass->image, sig, &ctx, error);
1839 if ((constrained_class != method->klass) && (MONO_CLASS_IS_INTERFACE (method->klass)))
1842 result = find_method (constrained_class, ic, method->name, sig, constrained_class, error);
1843 if (sig != original_sig)
1844 mono_metadata_free_inflated_signature (sig);
1849 if (method_context) {
1850 result = mono_class_inflate_generic_method_checked (result, method_context, error);
1859 mono_get_method_constrained_with_method (MonoImage *image, MonoMethod *method, MonoClass *constrained_class,
1860 MonoGenericContext *context, MonoError *error)
1864 return get_method_constrained (image, method, constrained_class, context, error);
1868 * mono_get_method_constrained:
1869 * This is used when JITing the <code>constrained.</code> opcode.
1870 * \returns The contrained method, which has been inflated
1871 * as the function return value; and the original CIL-stream method as
1872 * declared in \p cil_method. The latter is used for verification.
1875 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1876 MonoGenericContext *context, MonoMethod **cil_method)
1879 MonoMethod *result = mono_get_method_constrained_checked (image, token, constrained_class, context, cil_method, &error);
1880 mono_error_cleanup (&error);
1885 mono_get_method_constrained_checked (MonoImage *image, guint32 token, MonoClass *constrained_class, MonoGenericContext *context, MonoMethod **cil_method, MonoError *error)
1889 *cil_method = mono_get_method_checked (image, token, NULL, context, error);
1893 return get_method_constrained (image, *cil_method, constrained_class, context, error);
1900 mono_free_method (MonoMethod *method)
1902 MONO_PROFILER_RAISE (method_free, (method));
1904 /* FIXME: This hack will go away when the profiler will support freeing methods */
1905 if (G_UNLIKELY (mono_profiler_installed ()))
1908 if (method->signature) {
1910 * FIXME: This causes crashes because the types inside signatures and
1911 * locals are shared.
1913 /* mono_metadata_free_method_signature (method->signature); */
1914 /* g_free (method->signature); */
1917 if (method_is_dynamic (method)) {
1918 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1921 mono_marshal_free_dynamic_wrappers (method);
1923 mono_image_property_remove (method->klass->image, method);
1925 g_free ((char*)method->name);
1927 g_free ((char*)mw->header->code);
1928 for (i = 0; i < mw->header->num_locals; ++i)
1929 g_free (mw->header->locals [i]);
1930 g_free (mw->header->clauses);
1931 g_free (mw->header);
1933 g_free (mw->method_data);
1934 g_free (method->signature);
1940 * mono_method_get_param_names:
1943 mono_method_get_param_names (MonoMethod *method, const char **names)
1947 MonoTableInfo *methodt;
1948 MonoTableInfo *paramt;
1949 MonoMethodSignature *signature;
1952 if (method->is_inflated)
1953 method = ((MonoMethodInflated *) method)->declaring;
1955 signature = mono_method_signature (method);
1956 /*FIXME this check is somewhat redundant since the caller usally will have to get the signature to figure out the
1957 number of arguments and allocate a properly sized array. */
1958 if (signature == NULL)
1961 if (!signature->param_count)
1964 for (i = 0; i < signature->param_count; ++i)
1967 klass = method->klass;
1971 mono_class_init (klass);
1973 if (image_is_dynamic (klass->image)) {
1974 MonoReflectionMethodAux *method_aux =
1975 (MonoReflectionMethodAux *)g_hash_table_lookup (
1976 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1977 if (method_aux && method_aux->param_names) {
1978 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1979 if (method_aux->param_names [i + 1])
1980 names [i] = method_aux->param_names [i + 1];
1985 if (method->wrapper_type) {
1986 char **pnames = NULL;
1988 mono_image_lock (klass->image);
1989 if (klass->image->wrapper_param_names)
1990 pnames = (char **)g_hash_table_lookup (klass->image->wrapper_param_names, method);
1991 mono_image_unlock (klass->image);
1994 for (i = 0; i < signature->param_count; ++i)
1995 names [i] = pnames [i];
2000 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2001 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2002 idx = mono_method_get_index (method);
2004 guint32 cols [MONO_PARAM_SIZE];
2007 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2009 if (idx < methodt->rows)
2010 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2012 lastp = paramt->rows + 1;
2013 for (i = param_index; i < lastp; ++i) {
2014 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2015 if (cols [MONO_PARAM_SEQUENCE] && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) /* skip return param spec and bounds check*/
2016 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
2022 * mono_method_get_param_token:
2025 mono_method_get_param_token (MonoMethod *method, int index)
2027 MonoClass *klass = method->klass;
2028 MonoTableInfo *methodt;
2031 mono_class_init (klass);
2033 if (image_is_dynamic (klass->image))
2034 g_assert_not_reached ();
2036 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2037 idx = mono_method_get_index (method);
2039 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2043 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
2045 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
2052 * mono_method_get_marshal_info:
2055 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
2058 MonoClass *klass = method->klass;
2059 MonoTableInfo *methodt;
2060 MonoTableInfo *paramt;
2061 MonoMethodSignature *signature;
2064 signature = mono_method_signature (method);
2065 g_assert (signature); /*FIXME there is no way to signal error from this function*/
2067 for (i = 0; i < signature->param_count + 1; ++i)
2070 if (image_is_dynamic (method->klass->image)) {
2071 MonoReflectionMethodAux *method_aux =
2072 (MonoReflectionMethodAux *)g_hash_table_lookup (
2073 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2074 if (method_aux && method_aux->param_marshall) {
2075 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2076 for (i = 0; i < signature->param_count + 1; ++i)
2077 if (dyn_specs [i]) {
2078 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
2079 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
2080 mspecs [i]->data.custom_data.custom_name = g_strdup (dyn_specs [i]->data.custom_data.custom_name);
2081 mspecs [i]->data.custom_data.cookie = g_strdup (dyn_specs [i]->data.custom_data.cookie);
2087 mono_class_init (klass);
2089 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2090 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2091 idx = mono_method_get_index (method);
2093 guint32 cols [MONO_PARAM_SIZE];
2094 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2096 if (idx < methodt->rows)
2097 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2099 lastp = paramt->rows + 1;
2101 for (i = param_index; i < lastp; ++i) {
2102 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2104 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) {
2106 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
2108 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
2117 * mono_method_has_marshal_info:
2120 mono_method_has_marshal_info (MonoMethod *method)
2123 MonoClass *klass = method->klass;
2124 MonoTableInfo *methodt;
2125 MonoTableInfo *paramt;
2128 if (image_is_dynamic (method->klass->image)) {
2129 MonoReflectionMethodAux *method_aux =
2130 (MonoReflectionMethodAux *)g_hash_table_lookup (
2131 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2132 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2134 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
2141 mono_class_init (klass);
2143 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2144 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2145 idx = mono_method_get_index (method);
2147 guint32 cols [MONO_PARAM_SIZE];
2148 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2150 if (idx + 1 < methodt->rows)
2151 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2153 lastp = paramt->rows + 1;
2155 for (i = param_index; i < lastp; ++i) {
2156 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2158 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
2167 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
2170 g_assert (method != NULL);
2171 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
2173 data = (void **)((MonoMethodWrapper *)method)->method_data;
2174 g_assert (data != NULL);
2175 g_assert (id <= GPOINTER_TO_UINT (*data));
2182 } StackWalkUserData;
2185 stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2187 StackWalkUserData *d = (StackWalkUserData *)data;
2189 switch (frame->type) {
2190 case FRAME_TYPE_DEBUGGER_INVOKE:
2191 case FRAME_TYPE_MANAGED_TO_NATIVE:
2192 case FRAME_TYPE_TRAMPOLINE:
2194 case FRAME_TYPE_MANAGED:
2195 g_assert (frame->ji);
2196 return d->func (frame->actual_method, frame->native_offset, frame->il_offset, frame->managed, d->user_data);
2199 g_assert_not_reached ();
2205 mono_stack_walk (MonoStackWalk func, gpointer user_data)
2207 StackWalkUserData ud = { func, user_data };
2208 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_LOOKUP_ALL, &ud);
2212 * mono_stack_walk_no_il:
2215 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
2217 StackWalkUserData ud = { func, user_data };
2218 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_DEFAULT, &ud);
2222 MonoStackWalkAsyncSafe func;
2224 } AsyncStackWalkUserData;
2228 async_stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2230 AsyncStackWalkUserData *d = (AsyncStackWalkUserData *)data;
2232 switch (frame->type) {
2233 case FRAME_TYPE_DEBUGGER_INVOKE:
2234 case FRAME_TYPE_MANAGED_TO_NATIVE:
2235 case FRAME_TYPE_TRAMPOLINE:
2237 case FRAME_TYPE_MANAGED:
2240 if (frame->ji->async) {
2241 return d->func (NULL, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2243 return d->func (frame->actual_method, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2247 g_assert_not_reached ();
2254 * mono_stack_walk_async_safe:
2255 * Async safe version callable from signal handlers.
2258 mono_stack_walk_async_safe (MonoStackWalkAsyncSafe func, void *initial_sig_context, void *user_data)
2261 AsyncStackWalkUserData ud = { func, user_data };
2263 mono_sigctx_to_monoctx (initial_sig_context, &ctx);
2264 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (async_stack_walk_adapter, &ctx, MONO_UNWIND_SIGNAL_SAFE, &ud);
2268 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
2270 MonoMethod **dest = (MonoMethod **)data;
2272 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
2278 * mono_method_get_last_managed:
2281 mono_method_get_last_managed (void)
2283 MonoMethod *m = NULL;
2284 mono_stack_walk_no_il (last_managed, &m);
2288 static gboolean loader_lock_track_ownership = FALSE;
2293 * See \c docs/thread-safety.txt for the locking strategy.
2296 mono_loader_lock (void)
2298 mono_locks_coop_acquire (&loader_mutex, LoaderLock);
2299 if (G_UNLIKELY (loader_lock_track_ownership)) {
2300 mono_native_tls_set_value (loader_lock_nest_id, GUINT_TO_POINTER (GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) + 1));
2305 * mono_loader_unlock:
2308 mono_loader_unlock (void)
2310 mono_locks_coop_release (&loader_mutex, LoaderLock);
2311 if (G_UNLIKELY (loader_lock_track_ownership)) {
2312 mono_native_tls_set_value (loader_lock_nest_id, GUINT_TO_POINTER (GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) - 1));
2317 * mono_loader_lock_track_ownership:
2319 * Set whenever the runtime should track ownership of the loader lock. If set to TRUE,
2320 * the mono_loader_lock_is_owned_by_self () can be called to query whenever the current
2321 * thread owns the loader lock.
2324 mono_loader_lock_track_ownership (gboolean track)
2326 loader_lock_track_ownership = track;
2330 * mono_loader_lock_is_owned_by_self:
2332 * Return whenever the current thread owns the loader lock.
2333 * This is useful to avoid blocking operations while holding the loader lock.
2336 mono_loader_lock_is_owned_by_self (void)
2338 g_assert (loader_lock_track_ownership);
2340 return GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) > 0;
2344 * mono_loader_lock_if_inited:
2346 * Acquire the loader lock if it has been initialized, no-op otherwise. This can
2347 * be used in runtime initialization code which can be executed before mono_loader_init ().
2350 mono_loader_lock_if_inited (void)
2352 if (loader_lock_inited)
2353 mono_loader_lock ();
2357 mono_loader_unlock_if_inited (void)
2359 if (loader_lock_inited)
2360 mono_loader_unlock ();
2364 * mono_method_signature_checked:
2366 * Return the signature of the method M. On failure, returns NULL, and ERR is set.
2368 MonoMethodSignature*
2369 mono_method_signature_checked (MonoMethod *m, MonoError *error)
2374 gboolean can_cache_signature;
2375 MonoGenericContainer *container;
2376 MonoMethodSignature *signature = NULL, *sig2;
2379 /* We need memory barriers below because of the double-checked locking pattern */
2384 return m->signature;
2386 img = m->klass->image;
2388 if (m->is_inflated) {
2389 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
2390 /* the lock is recursive */
2391 signature = mono_method_signature (imethod->declaring);
2392 signature = inflate_generic_signature_checked (imethod->declaring->klass->image, signature, mono_method_get_context (m), error);
2393 if (!mono_error_ok (error))
2396 InterlockedAdd (&inflated_signatures_size, mono_metadata_signature_size (signature));
2398 mono_image_lock (img);
2400 mono_memory_barrier ();
2402 m->signature = signature;
2404 mono_image_unlock (img);
2406 return m->signature;
2409 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
2410 idx = mono_metadata_token_index (m->token);
2412 sig = mono_metadata_blob_heap (img, sig_offset = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
2414 g_assert (!mono_class_is_ginst (m->klass));
2415 container = mono_method_get_generic_container (m);
2417 container = mono_class_try_get_generic_container (m->klass);
2419 /* Generic signatures depend on the container so they cannot be cached */
2420 /* icall/pinvoke signatures cannot be cached cause we modify them below */
2421 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
2423 /* If the method has parameter attributes, that can modify the signature */
2424 if (mono_metadata_method_has_param_attrs (img, idx))
2425 can_cache_signature = FALSE;
2427 if (can_cache_signature) {
2428 mono_image_lock (img);
2429 signature = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2430 mono_image_unlock (img);
2434 const char *sig_body;
2435 /*TODO we should cache the failure result somewhere*/
2436 if (!mono_verifier_verify_method_signature (img, sig_offset, error))
2439 /* size = */ mono_metadata_decode_blob_size (sig, &sig_body);
2441 signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL, error);
2445 if (can_cache_signature) {
2446 mono_image_lock (img);
2447 sig2 = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2449 g_hash_table_insert (img->method_signatures, (gpointer)sig, signature);
2450 mono_image_unlock (img);
2453 InterlockedAdd (&signatures_size, mono_metadata_signature_size (signature));
2456 /* Verify metadata consistency */
2457 if (signature->generic_param_count) {
2458 if (!container || !container->is_method) {
2459 mono_error_set_method_load (error, m->klass, m->name, "Signature claims method has generic parameters, but generic_params table says it doesn't for method 0x%08x from image %s", idx, img->name);
2462 if (container->type_argc != signature->generic_param_count) {
2463 mono_error_set_method_load (error, m->klass, m->name, "Inconsistent generic parameter count. Signature says %d, generic_params table says %d for method 0x%08x from image %s", signature->generic_param_count, container->type_argc, idx, img->name);
2466 } else if (container && container->is_method && container->type_argc) {
2467 mono_error_set_method_load (error, m->klass, m->name, "generic_params table claims method has generic parameters, but signature says it doesn't for method 0x%08x from image %s", idx, img->name);
2470 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
2471 signature->pinvoke = 1;
2474 * On Windows the default pinvoke calling convention is STDCALL but
2475 * we need CDECL since this is actually an icall.
2477 signature->call_convention = MONO_CALL_C;
2479 } else if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2480 MonoCallConvention conv = (MonoCallConvention)0;
2481 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
2482 signature->pinvoke = 1;
2484 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
2485 case 0: /* no call conv, so using default */
2486 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
2487 conv = MONO_CALL_DEFAULT;
2489 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
2492 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
2493 conv = MONO_CALL_STDCALL;
2495 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
2496 conv = MONO_CALL_THISCALL;
2498 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
2499 conv = MONO_CALL_FASTCALL;
2501 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
2502 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
2504 mono_error_set_method_load (error, m->klass, m->name, "unsupported calling convention : 0x%04x for method 0x%08x from image %s", piinfo->piflags, idx, img->name);
2507 signature->call_convention = conv;
2510 mono_image_lock (img);
2512 mono_memory_barrier ();
2514 m->signature = signature;
2516 mono_image_unlock (img);
2518 return m->signature;
2522 * mono_method_signature:
2523 * \returns the signature of the method \p m. On failure, returns NULL.
2525 MonoMethodSignature*
2526 mono_method_signature (MonoMethod *m)
2529 MonoMethodSignature *sig;
2531 sig = mono_method_signature_checked (m, &error);
2533 char *type_name = mono_type_get_full_name (m->klass);
2534 g_warning ("Could not load signature of %s:%s due to: %s", type_name, m->name, mono_error_get_message (&error));
2536 mono_error_cleanup (&error);
2543 * mono_method_get_name:
2546 mono_method_get_name (MonoMethod *method)
2548 return method->name;
2552 * mono_method_get_class:
2555 mono_method_get_class (MonoMethod *method)
2557 return method->klass;
2561 * mono_method_get_token:
2564 mono_method_get_token (MonoMethod *method)
2566 return method->token;
2570 mono_method_get_header_checked (MonoMethod *method, MonoError *error)
2576 MonoGenericContainer *container;
2579 img = method->klass->image;
2581 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
2582 mono_error_set_bad_image (error, img, "Method has no body");
2586 if (method->is_inflated) {
2587 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2588 MonoMethodHeader *header, *iheader;
2590 header = mono_method_get_header_checked (imethod->declaring, error);
2594 iheader = inflate_generic_header (header, mono_method_get_context (method), error);
2595 mono_metadata_free_mh (header);
2603 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
2604 MonoMethodWrapper *mw = (MonoMethodWrapper *)method;
2605 g_assert (mw->header);
2610 * We don't need locks here: the new header is allocated from malloc memory
2611 * and is not stored anywhere in the runtime, the user needs to free it.
2613 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
2614 idx = mono_metadata_token_index (method->token);
2615 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
2617 if (!mono_verifier_verify_method_header (img, rva, NULL)) {
2618 mono_error_set_bad_image (error, img, "Invalid method header, failed verification");
2622 loc = mono_image_rva_map (img, rva);
2624 mono_error_set_bad_image (error, img, "Method has zero rva");
2629 * When parsing the types of local variables, we must pass any container available
2630 * to ensure that both VAR and MVAR will get the right owner.
2632 container = mono_method_get_generic_container (method);
2634 container = mono_class_try_get_generic_container (method->klass);
2635 return mono_metadata_parse_mh_full (img, container, (const char *)loc, error);
2639 * mono_method_get_header:
2642 mono_method_get_header (MonoMethod *method)
2645 MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
2646 mono_error_cleanup (&error);
2652 * mono_method_get_flags:
2655 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
2658 *iflags = method->iflags;
2659 return method->flags;
2663 * mono_method_get_index:
2664 * Find the method index in the metadata \c MethodDef table.
2667 mono_method_get_index (MonoMethod *method)
2669 MonoClass *klass = method->klass;
2673 /* constructed array methods are not in the MethodDef table */
2677 return mono_metadata_token_index (method->token);
2679 mono_class_setup_methods (klass);
2680 if (mono_class_has_failure (klass))
2682 int first_idx = mono_class_get_first_method_idx (klass);
2683 int mcount = mono_class_get_method_count (klass);
2684 for (i = 0; i < mcount; ++i) {
2685 if (method == klass->methods [i]) {
2686 if (klass->image->uncompressed_metadata)
2687 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, first_idx + i + 1);
2689 return first_idx + i + 1;