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.h>
39 #include <mono/metadata/profiler-private.h>
40 #include <mono/metadata/exception.h>
41 #include <mono/metadata/marshal.h>
42 #include <mono/metadata/lock-tracer.h>
43 #include <mono/metadata/verify-internals.h>
44 #include <mono/utils/mono-logger-internals.h>
45 #include <mono/utils/mono-dl.h>
46 #include <mono/utils/mono-membar.h>
47 #include <mono/utils/mono-counters.h>
48 #include <mono/utils/mono-error-internals.h>
49 #include <mono/utils/mono-tls.h>
50 #include <mono/utils/mono-path.h>
52 MonoDefaults mono_defaults;
55 * This lock protects the hash tables inside MonoImage used by the metadata
56 * loading functions in class.c and loader.c.
58 * See domain-internals.h for locking policy in combination with the
61 static MonoCoopMutex loader_mutex;
62 static mono_mutex_t global_loader_data_mutex;
63 static gboolean loader_lock_inited;
66 static guint32 inflated_signatures_size;
67 static guint32 memberref_sig_cache_size;
68 static guint32 methods_size;
69 static guint32 signatures_size;
72 * This TLS variable holds how many times the current thread has acquired the loader
75 MonoNativeTlsKey loader_lock_nest_id;
77 static void dllmap_cleanup (void);
81 global_loader_data_lock (void)
83 mono_locks_os_acquire (&global_loader_data_mutex, LoaderGlobalDataLock);
87 global_loader_data_unlock (void)
89 mono_locks_os_release (&global_loader_data_mutex, LoaderGlobalDataLock);
95 static gboolean inited;
98 mono_coop_mutex_init_recursive (&loader_mutex);
99 mono_os_mutex_init_recursive (&global_loader_data_mutex);
100 loader_lock_inited = TRUE;
102 mono_native_tls_alloc (&loader_lock_nest_id, NULL);
104 mono_counters_init ();
105 mono_counters_register ("Inflated signatures size",
106 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_signatures_size);
107 mono_counters_register ("Memberref signature cache size",
108 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &memberref_sig_cache_size);
109 mono_counters_register ("MonoMethod size",
110 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &methods_size);
111 mono_counters_register ("MonoMethodSignature size",
112 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &signatures_size);
119 mono_loader_cleanup (void)
123 mono_native_tls_free (loader_lock_nest_id);
125 mono_coop_mutex_destroy (&loader_mutex);
126 mono_os_mutex_destroy (&global_loader_data_mutex);
127 loader_lock_inited = FALSE;
131 * find_cached_memberref_sig:
133 * Return a cached copy of the memberref signature identified by SIG_IDX.
134 * We use a gpointer since the cache stores both MonoTypes and MonoMethodSignatures.
135 * A cache is needed since the type/signature parsing routines allocate everything
136 * from a mempool, so without a cache, multiple requests for the same signature would
137 * lead to unbounded memory growth. For normal methods/fields this is not a problem
138 * since the resulting methods/fields are cached, but inflated methods/fields cannot
140 * LOCKING: Acquires the loader lock.
143 find_cached_memberref_sig (MonoImage *image, guint32 sig_idx)
147 mono_image_lock (image);
148 res = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
149 mono_image_unlock (image);
155 cache_memberref_sig (MonoImage *image, guint32 sig_idx, gpointer sig)
159 mono_image_lock (image);
160 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
162 /* Somebody got in before us */
166 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (sig_idx), sig);
167 /* An approximation based on glib 2.18 */
168 memberref_sig_cache_size += sizeof (gpointer) * 4;
170 mono_image_unlock (image);
175 static MonoClassField*
176 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
177 MonoGenericContext *context, MonoError *error)
179 MonoClass *klass = NULL;
180 MonoClassField *field;
181 MonoTableInfo *tables = image->tables;
184 guint32 nindex, class_index;
187 guint32 idx = mono_metadata_token_index (token);
191 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
192 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
193 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
195 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
197 if (!mono_verifier_verify_memberref_field_signature (image, cols [MONO_MEMBERREF_SIGNATURE], NULL)) {
198 mono_error_set_bad_image (error, image, "Bad field '%u' signature 0x%08x", class_index, token);
202 switch (class_index) {
203 case MONO_MEMBERREF_PARENT_TYPEDEF:
204 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
206 case MONO_MEMBERREF_PARENT_TYPEREF:
207 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
209 case MONO_MEMBERREF_PARENT_TYPESPEC:
210 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, context, error);
213 mono_error_set_bad_image (error, image, "Bad field field '%u' signature 0x%08x", class_index, token);
219 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
220 mono_metadata_decode_blob_size (ptr, &ptr);
221 /* we may want to check the signature here... */
224 mono_error_set_field_load (error, klass, fname, "Bad field signature class token %08x field name %s token %08x", class_index, fname, token);
228 /* FIXME: This needs a cache, especially for generic instances, since
229 * we ask mono_metadata_parse_type_checked () to allocates everything from a mempool.
230 * FIXME part2, mono_metadata_parse_type_checked actually allows for a transient type instead.
231 * FIXME part3, transient types are not 100% transient, so we need to take care of that first.
233 sig_type = (MonoType *)find_cached_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE]);
235 MonoError inner_error;
236 sig_type = mono_metadata_parse_type_checked (image, NULL, 0, FALSE, ptr, &ptr, &inner_error);
237 if (sig_type == NULL) {
238 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));
239 mono_error_cleanup (&inner_error);
242 sig_type = (MonoType *)cache_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE], sig_type);
245 mono_class_init (klass); /*FIXME is this really necessary?*/
248 field = mono_class_get_field_from_name_full (klass, fname, sig_type);
251 mono_error_set_field_load (error, klass, fname, "Could not find field '%s'", fname);
258 * mono_field_from_token:
259 * \deprecated use the \c _checked variant
260 * Notes: runtime code MUST not use this function
263 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context)
266 MonoClassField *res = mono_field_from_token_checked (image, token, retklass, context, &error);
267 g_assert (mono_error_ok (&error));
272 mono_field_from_token_checked (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context, MonoError *error)
276 MonoClassField *field;
280 if (image_is_dynamic (image)) {
281 MonoClassField *result;
282 MonoClass *handle_class;
285 MonoError inner_error;
286 result = (MonoClassField *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context, &inner_error);
287 mono_error_cleanup (&inner_error);
288 // This checks the memberref type as well
289 if (!result || handle_class != mono_defaults.fieldhandle_class) {
290 mono_error_set_bad_image (error, image, "Bad field token 0x%08x", token);
293 *retklass = result->parent;
297 if ((field = (MonoClassField *)mono_conc_hashtable_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
298 *retklass = field->parent;
302 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF) {
303 field = field_from_memberref (image, token, retklass, context, error);
305 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
307 mono_error_set_bad_image (error, image, "Invalid field token 0x%08x", token);
310 k = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
317 field = mono_class_get_field (k, token);
319 mono_error_set_bad_image (error, image, "Could not resolve field token 0x%08x", token);
323 if (field && field->parent && !mono_class_is_ginst (field->parent) && !mono_class_is_gtd (field->parent)) {
324 mono_image_lock (image);
325 mono_conc_hashtable_insert (image->field_cache, GUINT_TO_POINTER (token), field);
326 mono_image_unlock (image);
333 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
337 if (sig1->hasthis != sig2->hasthis ||
338 sig1->sentinelpos != sig2->sentinelpos)
341 for (i = 0; i < sig1->sentinelpos; i++) {
342 MonoType *p1 = sig1->params[i];
343 MonoType *p2 = sig2->params[i];
345 /*if (p1->attrs != p2->attrs)
348 if (!mono_metadata_type_equal (p1, p2))
352 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
358 find_method_in_class (MonoClass *klass, const char *name, const char *qname, const char *fqname,
359 MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
363 /* Search directly in the metadata to avoid calling setup_methods () */
366 /* FIXME: !mono_class_is_ginst (from_class) condition causes test failures. */
367 if (klass->type_token && !image_is_dynamic (klass->image) && !klass->methods && !klass->rank && klass == from_class && !mono_class_is_ginst (from_class)) {
368 int first_idx = mono_class_get_first_method_idx (klass);
369 int mcount = mono_class_get_method_count (klass);
370 for (i = 0; i < mcount; ++i) {
371 guint32 cols [MONO_METHOD_SIZE];
374 MonoMethodSignature *other_sig;
376 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, first_idx + i, cols, MONO_METHOD_SIZE);
378 m_name = mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]);
380 if (!((fqname && !strcmp (m_name, fqname)) ||
381 (qname && !strcmp (m_name, qname)) ||
382 (name && !strcmp (m_name, name))))
385 method = mono_get_method_checked (klass->image, MONO_TOKEN_METHOD_DEF | (first_idx + i + 1), klass, NULL, error);
386 if (!mono_error_ok (error)) //bail out if we hit a loader error
389 other_sig = mono_method_signature_checked (method, error);
390 if (!mono_error_ok (error)) //bail out if we hit a loader error
392 if (other_sig && (sig->call_convention != MONO_CALL_VARARG) && mono_metadata_signature_equal (sig, other_sig))
398 mono_class_setup_methods (klass); /* FIXME don't swallow the error here. */
400 We can't fail lookup of methods otherwise the runtime will fail with MissingMethodException instead of TypeLoadException.
401 See mono/tests/generic-type-load-exception.2.il
402 FIXME we should better report this error to the caller
404 if (!klass->methods || mono_class_has_failure (klass)) {
405 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
409 int mcount = mono_class_get_method_count (klass);
410 for (i = 0; i < mcount; ++i) {
411 MonoMethod *m = klass->methods [i];
412 MonoMethodSignature *msig;
414 /* We must cope with failing to load some of the types. */
418 if (!((fqname && !strcmp (m->name, fqname)) ||
419 (qname && !strcmp (m->name, qname)) ||
420 (name && !strcmp (m->name, name))))
422 msig = mono_method_signature_checked (m, error);
423 if (!mono_error_ok (error)) //bail out if we hit a loader error
429 if (sig->call_convention == MONO_CALL_VARARG) {
430 if (mono_metadata_signature_vararg_match (sig, msig))
433 if (mono_metadata_signature_equal (sig, msig))
439 return mono_class_get_method_by_index (from_class, i);
444 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
447 char *qname, *fqname, *class_name;
448 gboolean is_interface;
449 MonoMethod *result = NULL;
450 MonoClass *initial_class = in_class;
453 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
456 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
458 qname = g_strconcat (class_name, ".", name, NULL);
459 if (ic->name_space && ic->name_space [0])
460 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
464 class_name = qname = fqname = NULL;
467 g_assert (from_class);
468 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class, error);
469 if (result || !mono_error_ok (error))
472 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
476 * This happens when we fail to lazily load the interfaces of one of the types.
477 * On such case we can't just bail out since user code depends on us trying harder.
479 if (from_class->interface_offsets_count != in_class->interface_offsets_count) {
480 in_class = in_class->parent;
481 from_class = from_class->parent;
485 for (i = 0; i < in_class->interface_offsets_count; i++) {
486 MonoClass *in_ic = in_class->interfaces_packed [i];
487 MonoClass *from_ic = from_class->interfaces_packed [i];
488 char *ic_qname, *ic_fqname, *ic_class_name;
490 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
491 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
492 if (in_ic->name_space && in_ic->name_space [0])
493 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
497 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic, error);
498 g_free (ic_class_name);
501 if (result || !mono_error_ok (error))
505 in_class = in_class->parent;
506 from_class = from_class->parent;
508 g_assert (!in_class == !from_class);
511 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class, error);
513 //we did not find the method
514 if (!result && mono_error_ok (error)) {
515 char *desc = mono_signature_get_desc (sig, FALSE);
516 mono_error_set_method_load (error, initial_class, name, "Could not find method with signature %s", desc);
527 static MonoMethodSignature*
528 inflate_generic_signature_checked (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
530 MonoMethodSignature *res;
538 res = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)sig->param_count) * sizeof (MonoType*));
539 res->param_count = sig->param_count;
540 res->sentinelpos = -1;
541 res->ret = mono_class_inflate_generic_type_checked (sig->ret, context, error);
542 if (!mono_error_ok (error))
544 is_open = mono_class_is_open_constructed_type (res->ret);
545 for (i = 0; i < sig->param_count; ++i) {
546 res->params [i] = mono_class_inflate_generic_type_checked (sig->params [i], context, error);
547 if (!mono_error_ok (error))
551 is_open = mono_class_is_open_constructed_type (res->params [i]);
553 res->hasthis = sig->hasthis;
554 res->explicit_this = sig->explicit_this;
555 res->call_convention = sig->call_convention;
556 res->pinvoke = sig->pinvoke;
557 res->generic_param_count = sig->generic_param_count;
558 res->sentinelpos = sig->sentinelpos;
559 res->has_type_parameters = is_open;
560 res->is_inflated = 1;
565 mono_metadata_free_type (res->ret);
566 for (i = 0; i < sig->param_count; ++i) {
568 mono_metadata_free_type (res->params [i]);
575 * mono_inflate_generic_signature:
577 * Inflate \p sig with \p context, and return a canonical copy. On error, set \p error, and return NULL.
580 mono_inflate_generic_signature (MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
582 MonoMethodSignature *res, *cached;
584 res = inflate_generic_signature_checked (NULL, sig, context, error);
585 if (!mono_error_ok (error))
587 cached = mono_metadata_get_inflated_signature (res, context);
589 mono_metadata_free_inflated_signature (res);
593 static MonoMethodHeader*
594 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context, MonoError *error)
596 size_t locals_size = sizeof (gpointer) * header->num_locals;
597 size_t clauses_size = header->num_clauses * sizeof (MonoExceptionClause);
598 size_t header_size = MONO_SIZEOF_METHOD_HEADER + locals_size + clauses_size;
599 MonoMethodHeader *res = (MonoMethodHeader *)g_malloc0 (header_size);
600 res->num_locals = header->num_locals;
601 res->clauses = (MonoExceptionClause *) &res->locals [res->num_locals] ;
602 memcpy (res->clauses, header->clauses, clauses_size);
604 res->code = header->code;
605 res->code_size = header->code_size;
606 res->max_stack = header->max_stack;
607 res->num_clauses = header->num_clauses;
608 res->init_locals = header->init_locals;
610 res->is_transient = TRUE;
614 for (int i = 0; i < header->num_locals; ++i) {
615 res->locals [i] = mono_class_inflate_generic_type_checked (header->locals [i], context, error);
619 if (res->num_clauses) {
620 for (int i = 0; i < header->num_clauses; ++i) {
621 MonoExceptionClause *clause = &res->clauses [i];
622 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
624 clause->data.catch_class = mono_class_inflate_generic_class_checked (clause->data.catch_class, context, error);
636 * mono_method_get_signature_full:
637 * \p token is the method ref/def/spec token used in a \c call IL instruction.
638 * \deprecated use the \c _checked variant
639 * Notes: runtime code MUST not use this function
642 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
645 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, context, &error);
646 mono_error_cleanup (&error);
651 mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error)
653 int table = mono_metadata_token_table (token);
654 int idx = mono_metadata_token_index (token);
656 guint32 cols [MONO_MEMBERREF_SIZE];
657 MonoMethodSignature *sig;
662 /* !table is for wrappers: we should really assign their own token to them */
663 if (!table || table == MONO_TABLE_METHOD)
664 return mono_method_signature_checked (method, error);
666 if (table == MONO_TABLE_METHODSPEC) {
667 /* the verifier (do_invoke_method) will turn the NULL into a verifier error */
668 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || !method->is_inflated) {
669 mono_error_set_bad_image (error, image, "Method is a pinvoke or open generic");
673 return mono_method_signature_checked (method, error);
676 if (mono_class_is_ginst (method->klass))
677 return mono_method_signature_checked (method, error);
679 if (image_is_dynamic (image)) {
680 sig = mono_reflection_lookup_signature (image, method, token, error);
684 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
685 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
687 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
689 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
690 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
691 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
693 //FIXME include the verification error
694 mono_error_set_bad_image (error, image, "Bad method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
698 ptr = mono_metadata_blob_heap (image, sig_idx);
699 mono_metadata_decode_blob_size (ptr, &ptr);
701 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
705 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
707 /* FIXME: we probably should verify signature compat in the dynamic case too*/
708 if (!mono_verifier_is_sig_compatible (image, method, sig)) {
709 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
710 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
712 mono_error_set_bad_image (error, image, "Incompatible method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
718 MonoMethodSignature *cached;
720 /* This signature is not owned by a MonoMethod, so need to cache */
721 sig = inflate_generic_signature_checked (image, sig, context, error);
722 if (!mono_error_ok (error))
725 cached = mono_metadata_get_inflated_signature (sig, context);
727 mono_metadata_free_inflated_signature (sig);
729 inflated_signatures_size += mono_metadata_signature_size (cached);
733 g_assert (mono_error_ok (error));
738 * mono_method_get_signature:
739 * \p token is the method_ref/def/spec token used in a call IL instruction.
740 * \deprecated use the \c _checked variant
741 * Notes: runtime code MUST not use this function
744 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
747 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, NULL, &error);
748 mono_error_cleanup (&error);
752 /* this is only for the typespec array methods */
754 mono_method_search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
758 mono_class_setup_methods (klass);
759 g_assert (!mono_class_has_failure (klass)); /*FIXME this should not fail, right?*/
760 int mcount = mono_class_get_method_count (klass);
761 for (i = 0; i < mcount; ++i) {
762 MonoMethod *method = klass->methods [i];
763 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
770 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
771 gboolean *used_context, MonoError *error)
773 MonoClass *klass = NULL;
774 MonoMethod *method = NULL;
775 MonoTableInfo *tables = image->tables;
777 guint32 nindex, class_index, sig_idx;
779 MonoMethodSignature *sig;
784 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
785 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
786 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
787 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
788 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
790 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
793 * Whether we actually used the `typespec_context' or not.
794 * This is used to tell our caller whether or not it's safe to insert the returned
795 * method into a cache.
798 *used_context = class_index == MONO_MEMBERREF_PARENT_TYPESPEC;
800 switch (class_index) {
801 case MONO_MEMBERREF_PARENT_TYPEREF:
802 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
806 case MONO_MEMBERREF_PARENT_TYPESPEC:
808 * Parse the TYPESPEC in the parent's context.
810 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context, error);
814 case MONO_MEMBERREF_PARENT_TYPEDEF:
815 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
819 case MONO_MEMBERREF_PARENT_METHODDEF: {
820 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, NULL, error);
826 mono_error_set_bad_image (error, image, "Memberref parent unknown: class: %d, index %d", class_index, nindex);
831 mono_class_init (klass);
833 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
835 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
836 mono_error_set_method_load (error, klass, mname, "Verifier rejected method signature");
840 ptr = mono_metadata_blob_heap (image, sig_idx);
841 mono_metadata_decode_blob_size (ptr, &ptr);
843 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
845 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
849 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
852 switch (class_index) {
853 case MONO_MEMBERREF_PARENT_TYPEREF:
854 case MONO_MEMBERREF_PARENT_TYPEDEF:
855 method = find_method (klass, NULL, mname, sig, klass, error);
858 case MONO_MEMBERREF_PARENT_TYPESPEC: {
861 type = &klass->byval_arg;
863 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
864 MonoClass *in_class = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->container_class : klass;
865 method = find_method (in_class, NULL, mname, sig, klass, error);
869 /* we're an array and we created these methods already in klass in mono_class_init () */
870 method = mono_method_search_in_array_class (klass, mname, sig);
874 mono_error_set_bad_image (error, image,"Memberref parent unknown: class: %d, index %d", class_index, nindex);
878 if (!method && mono_error_ok (error)) {
879 char *msig = mono_signature_get_desc (sig, FALSE);
880 GString *s = g_string_new (mname);
881 if (sig->generic_param_count)
882 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
883 g_string_append_printf (s, "(%s)", msig);
885 msig = g_string_free (s, FALSE);
887 mono_error_set_method_load (error, klass, mname, "Could not find method %s", msig);
895 g_assert (!mono_error_ok (error));
900 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx, MonoError *error)
904 MonoTableInfo *tables = image->tables;
905 MonoGenericContext new_context;
906 MonoGenericInst *inst;
908 guint32 cols [MONO_METHODSPEC_SIZE];
909 guint32 token, nindex, param_count;
913 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
914 token = cols [MONO_METHODSPEC_METHOD];
915 nindex = token >> MONO_METHODDEFORREF_BITS;
917 if (!mono_verifier_verify_methodspec_signature (image, cols [MONO_METHODSPEC_SIGNATURE], NULL)) {
918 mono_error_set_bad_image (error, image, "Bad method signals signature 0x%08x", idx);
922 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
924 mono_metadata_decode_value (ptr, &ptr);
926 param_count = mono_metadata_decode_value (ptr, &ptr);
928 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr, error);
932 if (context && inst->is_open) {
933 inst = mono_metadata_inflate_generic_inst (inst, context, error);
934 if (!mono_error_ok (error))
938 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF) {
939 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context, error);
943 method = method_from_memberref (image, nindex, context, NULL, error);
949 klass = method->klass;
951 if (mono_class_is_ginst (klass)) {
952 g_assert (method->is_inflated);
953 method = ((MonoMethodInflated *) method)->declaring;
956 new_context.class_inst = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->context.class_inst : NULL;
957 new_context.method_inst = inst;
959 method = mono_class_inflate_generic_method_full_checked (method, klass, &new_context, error);
971 static MonoDllMap *global_dll_map;
974 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
982 global_loader_data_lock ();
985 * we use the first entry we find that matches, since entries from
986 * the config file are prepended to the list and we document that the
989 for (; dll_map; dll_map = dll_map->next) {
990 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
991 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
993 } else if (strcmp (dll_map->dll, dll)) {
996 if (!found && dll_map->target) {
997 *rdll = dll_map->target;
999 /* we don't quit here, because we could find a full
1000 * entry that matches also function and that has priority.
1003 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
1004 *rdll = dll_map->target;
1005 *rfunc = dll_map->target_func;
1010 global_loader_data_unlock ();
1015 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
1018 if (assembly && assembly->dll_map) {
1019 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
1023 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
1027 * mono_dllmap_insert:
1028 * \param assembly if NULL, this is a global mapping, otherwise the remapping of the dynamic library will only apply to the specified assembly
1029 * \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
1030 * \param func if not null, the mapping will only applied to the named function (the value of <code>EntryPoint</code>)
1031 * \param tdll The name of the library to map the specified \p dll if it matches.
1032 * \param tfunc The name of the function that replaces the invocation. If NULL, it is replaced with a copy of \p func.
1034 * LOCKING: Acquires the loader lock.
1036 * This function is used to programatically add \c DllImport remapping in either
1037 * a specific assembly, or as a global remapping. This is done by remapping
1038 * references in a \c DllImport attribute from the \p dll library name into the \p tdll
1039 * name. If the \p dll name contains the prefix <code>i:</code>, the comparison of the
1040 * library name is done without case sensitivity.
1042 * If you pass \p func, this is the name of the \c EntryPoint in a \c DllImport if specified
1043 * or the name of the function as determined by \c DllImport. If you pass \p func, you
1044 * must also pass \p tfunc which is the name of the target function to invoke on a match.
1048 * <code>mono_dllmap_insert (NULL, "i:libdemo.dll", NULL, relocated_demo_path, NULL);</code>
1050 * The above will remap \c DllImport statements for \c libdemo.dll and \c LIBDEMO.DLL to
1051 * the contents of \c relocated_demo_path for all assemblies in the Mono process.
1053 * NOTE: This can be called before the runtime is initialized, for example from
1054 * \c mono_config_parse.
1057 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc)
1061 mono_loader_init ();
1064 entry = (MonoDllMap *)g_malloc0 (sizeof (MonoDllMap));
1065 entry->dll = dll? g_strdup (dll): NULL;
1066 entry->target = tdll? g_strdup (tdll): NULL;
1067 entry->func = func? g_strdup (func): NULL;
1068 entry->target_func = tfunc? g_strdup (tfunc): (func? g_strdup (func): NULL);
1070 global_loader_data_lock ();
1071 entry->next = global_dll_map;
1072 global_dll_map = entry;
1073 global_loader_data_unlock ();
1075 entry = (MonoDllMap *)mono_image_alloc0 (assembly, sizeof (MonoDllMap));
1076 entry->dll = dll? mono_image_strdup (assembly, dll): NULL;
1077 entry->target = tdll? mono_image_strdup (assembly, tdll): NULL;
1078 entry->func = func? mono_image_strdup (assembly, func): NULL;
1079 entry->target_func = tfunc? mono_image_strdup (assembly, tfunc): (func? mono_image_strdup (assembly, func): NULL);
1081 mono_image_lock (assembly);
1082 entry->next = assembly->dll_map;
1083 assembly->dll_map = entry;
1084 mono_image_unlock (assembly);
1089 free_dllmap (MonoDllMap *map)
1092 MonoDllMap *next = map->next;
1095 g_free (map->target);
1097 g_free (map->target_func);
1104 dllmap_cleanup (void)
1106 free_dllmap (global_dll_map);
1107 global_dll_map = NULL;
1110 static GHashTable *global_module_map;
1113 cached_module_load (const char *name, int flags, char **err)
1119 global_loader_data_lock ();
1120 if (!global_module_map)
1121 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1122 res = (MonoDl *)g_hash_table_lookup (global_module_map, name);
1124 global_loader_data_unlock ();
1127 res = mono_dl_open (name, flags, err);
1129 g_hash_table_insert (global_module_map, g_strdup (name), res);
1130 global_loader_data_unlock ();
1135 mono_loader_register_module (const char *name, MonoDl *module)
1137 if (!global_module_map)
1138 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1139 g_hash_table_insert (global_module_map, g_strdup (name), module);
1142 static MonoDl *internal_module;
1145 is_absolute_path (const char *path)
1147 #ifdef PLATFORM_MACOSX
1148 if (!strncmp (path, "@executable_path/", 17) || !strncmp (path, "@loader_path/", 13) ||
1149 !strncmp (path, "@rpath/", 7))
1152 return g_path_is_absolute (path);
1156 * mono_lookup_pinvoke_call:
1159 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1161 MonoImage *image = method->klass->image;
1162 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1163 MonoTableInfo *tables = image->tables;
1164 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1165 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1166 guint32 im_cols [MONO_IMPLMAP_SIZE];
1167 guint32 scope_token;
1168 const char *import = NULL;
1169 const char *orig_scope;
1170 const char *new_scope;
1172 char *full_name, *file_name, *found_name = NULL;
1174 MonoDl *module = NULL;
1175 gboolean cached = FALSE;
1176 gpointer addr = NULL;
1178 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1186 return piinfo->addr;
1188 if (image_is_dynamic (method->klass->image)) {
1189 MonoReflectionMethodAux *method_aux =
1190 (MonoReflectionMethodAux *)g_hash_table_lookup (
1191 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1195 import = method_aux->dllentry;
1196 orig_scope = method_aux->dll;
1199 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
1202 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1204 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
1207 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1208 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1209 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1210 orig_scope = mono_metadata_string_heap (image, scope_token);
1213 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1216 mono_image_lock (image);
1217 if (!image->pinvoke_scopes) {
1218 image->pinvoke_scopes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1219 image->pinvoke_scope_filenames = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1221 module = (MonoDl *)g_hash_table_lookup (image->pinvoke_scopes, new_scope);
1222 found_name = (char *)g_hash_table_lookup (image->pinvoke_scope_filenames, new_scope);
1223 mono_image_unlock (image);
1227 found_name = g_strdup (found_name);
1231 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1232 "DllImport attempting to load: '%s'.", new_scope);
1234 /* we allow a special name to dlopen from the running process namespace */
1235 if (strcmp (new_scope, "__Internal") == 0){
1236 if (internal_module == NULL)
1237 internal_module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1238 module = internal_module;
1243 * Try loading the module using a variety of names
1245 for (i = 0; i < 5; ++i) {
1246 char *base_name = NULL, *dir_name = NULL;
1247 gboolean is_absolute = is_absolute_path (new_scope);
1251 /* Try the original name */
1252 file_name = g_strdup (new_scope);
1255 /* Try trimming the .dll extension */
1256 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1257 file_name = g_strdup (new_scope);
1258 file_name [strlen (new_scope) - 4] = '\0';
1265 dir_name = g_path_get_dirname (new_scope);
1266 base_name = g_path_get_basename (new_scope);
1267 if (strstr (base_name, "lib") != base_name) {
1268 char *tmp = g_strdup_printf ("lib%s", base_name);
1271 file_name = g_strdup_printf ("%s%s%s", dir_name, G_DIR_SEPARATOR_S, base_name);
1274 } else if (strstr (new_scope, "lib") != new_scope) {
1275 file_name = g_strdup_printf ("lib%s", new_scope);
1280 if (!is_absolute && mono_dl_get_system_dir ()) {
1281 dir_name = (char*)mono_dl_get_system_dir ();
1282 file_name = g_path_get_basename (new_scope);
1288 #ifndef TARGET_WIN32
1289 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1290 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1291 !g_ascii_strcasecmp ("user32", new_scope) ||
1292 !g_ascii_strcasecmp ("kernel", new_scope)) {
1293 file_name = g_strdup ("libMonoSupportW.so");
1297 #ifndef TARGET_WIN32
1304 dir_name = g_path_get_dirname (file_name);
1306 base_name = g_path_get_basename (file_name);
1309 if (!module && is_absolute) {
1310 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1312 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1313 "DllImport error loading library '%s': '%s'.",
1314 file_name, error_msg);
1317 found_name = g_strdup (file_name);
1321 if (!module && !is_absolute) {
1325 for (j = 0; j < 3; ++j) {
1330 mdirname = g_path_get_dirname (image->name);
1332 case 1: /* @executable_path@/../lib */
1336 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1338 char *base, *newbase;
1341 resolvedname = mono_path_resolve_symlinks (buf);
1343 base = g_path_get_dirname (resolvedname);
1344 newbase = g_path_get_dirname(base);
1345 mdirname = g_strdup_printf ("%s/lib", newbase);
1347 g_free (resolvedname);
1354 case 2: /* @executable_path@/../Libraries */
1358 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1360 char *base, *newbase;
1363 resolvedname = mono_path_resolve_symlinks (buf);
1365 base = g_path_get_dirname (resolvedname);
1366 newbase = g_path_get_dirname(base);
1367 mdirname = g_strdup_printf ("%s/Libraries", newbase);
1369 g_free (resolvedname);
1381 while ((full_name = mono_dl_build_path (mdirname, file_name, &iter))) {
1382 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1384 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1385 "DllImport error loading library '%s': '%s'.",
1386 full_name, error_msg);
1389 found_name = g_strdup (full_name);
1405 char *file_or_base = is_absolute ? base_name : file_name;
1406 while ((full_name = mono_dl_build_path (dir_name, file_or_base, &iter))) {
1407 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1409 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1410 "DllImport error loading library '%s': '%s'.",
1411 full_name, error_msg);
1414 found_name = g_strdup (full_name);
1423 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1425 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1426 "DllImport error loading library '%s': '%s'.",
1427 file_name, error_msg);
1429 found_name = g_strdup (file_name);
1444 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1445 "DllImport unable to load library '%s'.",
1450 *exc_class = "DllNotFoundException";
1451 *exc_arg = new_scope;
1457 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1458 "DllImport loaded library '%s'.", found_name);
1459 mono_image_lock (image);
1460 if (!g_hash_table_lookup (image->pinvoke_scopes, new_scope)) {
1461 g_hash_table_insert (image->pinvoke_scopes, g_strdup (new_scope), module);
1462 g_hash_table_insert (image->pinvoke_scope_filenames, g_strdup (new_scope), g_strdup (found_name));
1464 mono_image_unlock (image);
1467 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1468 "DllImport searching in: '%s' ('%s').", new_scope, found_name);
1469 g_free (found_name);
1472 if (import && import [0] == '#' && isdigit (import [1])) {
1476 id = strtol (import + 1, &end, 10);
1477 if (id > 0 && *end == '\0')
1481 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1482 "Searching for '%s'.", import);
1484 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1485 error_msg = mono_dl_symbol (module, import, &addr);
1487 char *mangled_name = NULL, *mangled_name2 = NULL;
1490 int mangle_param_count;
1496 * Search using a variety of mangled names
1498 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1499 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1500 gboolean need_param_count = FALSE;
1502 if (mangle_stdcall > 0)
1503 need_param_count = TRUE;
1505 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1510 mangled_name = (char*)import;
1511 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1512 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1513 /* Try the mangled name first */
1514 if (mangle_charset == 0)
1515 mangled_name = g_strconcat (import, "W", NULL);
1517 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1519 if (mangle_charset == 0)
1520 mangled_name = g_strconcat (import, "W", NULL);
1522 /* Try the mangled name last */
1523 if (mangle_charset == 1)
1524 mangled_name = g_strconcat (import, "A", NULL);
1527 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1529 /* Try the mangled name last */
1530 if (mangle_charset == 1)
1531 mangled_name = g_strconcat (import, "A", NULL);
1536 if (mangle_param_count == 0)
1537 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1539 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1540 param_count = mangle_param_count;
1542 /* Try the stdcall mangled name */
1544 * gcc under windows creates mangled names without the underscore, but MS.NET
1545 * doesn't support it, so we doesn't support it either.
1547 if (mangle_stdcall == 1)
1548 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1550 mangled_name2 = mangled_name;
1552 mangled_name2 = mangled_name;
1555 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1556 "Probing '%s'.", mangled_name2);
1558 error_msg = mono_dl_symbol (module, mangled_name2, &addr);
1561 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1562 "Found as '%s'.", mangled_name2);
1564 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1565 "Could not find '%s' due to '%s'.", mangled_name2, error_msg);
1570 if (mangled_name != mangled_name2)
1571 g_free (mangled_name2);
1572 if (mangled_name != import)
1573 g_free (mangled_name);
1582 *exc_class = "EntryPointNotFoundException";
1587 piinfo->addr = addr;
1592 * LOCKING: assumes the loader lock to be taken.
1595 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1596 MonoGenericContext *context, gboolean *used_context, MonoError *error)
1599 int table = mono_metadata_token_table (token);
1600 int idx = mono_metadata_token_index (token);
1601 MonoTableInfo *tables = image->tables;
1602 MonoGenericContainer *generic_container = NULL, *container = NULL;
1603 const char *sig = NULL;
1604 guint32 cols [MONO_TYPEDEF_SIZE];
1608 if (image_is_dynamic (image)) {
1609 MonoClass *handle_class;
1611 result = (MonoMethod *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context, error);
1612 mono_error_assert_ok (error);
1614 // This checks the memberref type as well
1615 if (result && handle_class != mono_defaults.methodhandle_class) {
1616 mono_error_set_bad_image (error, image, "Bad method token 0x%08x on dynamic image", token);
1622 if (table != MONO_TABLE_METHOD) {
1623 if (table == MONO_TABLE_METHODSPEC) {
1624 if (used_context) *used_context = TRUE;
1625 return method_from_methodspec (image, context, idx, error);
1627 if (table != MONO_TABLE_MEMBERREF) {
1628 mono_error_set_bad_image (error, image, "Bad method token 0x%08x.", token);
1631 return method_from_memberref (image, idx, context, used_context, error);
1634 if (used_context) *used_context = FALSE;
1636 if (idx > image->tables [MONO_TABLE_METHOD].rows) {
1637 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (out of bounds).", token);
1642 guint32 type = mono_metadata_typedef_from_method (image, token);
1644 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (could not find corresponding typedef).", token);
1647 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
1652 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1654 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1655 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1656 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethodPInvoke));
1658 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethod));
1659 methods_size += sizeof (MonoMethod);
1662 mono_stats.method_count ++;
1665 result->klass = klass;
1666 result->flags = cols [2];
1667 result->iflags = cols [1];
1668 result->token = token;
1669 result->name = mono_metadata_string_heap (image, cols [3]);
1671 if (!sig) /* already taken from the methodref */
1672 sig = mono_metadata_blob_heap (image, cols [4]);
1673 /* size = */ mono_metadata_decode_blob_size (sig, &sig);
1675 container = mono_class_try_get_generic_container (klass);
1678 * load_generic_params does a binary search so only call it if the method
1682 generic_container = mono_metadata_load_generic_params (image, token, container);
1684 if (generic_container) {
1685 result->is_generic = TRUE;
1686 generic_container->owner.method = result;
1687 generic_container->is_anonymous = FALSE; // Method is now known, container is no longer anonymous
1688 /*FIXME put this before the image alloc*/
1689 if (!mono_metadata_load_generic_param_constraints_checked (image, token, generic_container, error))
1692 container = generic_container;
1695 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1696 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1697 result->string_ctor = 1;
1698 } else if (cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1699 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1702 /* IJW is P/Invoke with a predefined function pointer. */
1703 if (image->is_module_handle && (cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
1704 piinfo->addr = mono_image_rva_map (image, cols [0]);
1705 g_assert (piinfo->addr);
1708 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1709 /* Native methods can have no map. */
1710 if (piinfo->implmap_idx)
1711 piinfo->piflags = mono_metadata_decode_row_col (&tables [MONO_TABLE_IMPLMAP], piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1714 if (generic_container)
1715 mono_method_set_generic_container (result, generic_container);
1724 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1727 MonoMethod *result = mono_get_method_checked (image, token, klass, NULL, &error);
1728 mono_error_cleanup (&error);
1733 * mono_get_method_full:
1736 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1737 MonoGenericContext *context)
1740 MonoMethod *result = mono_get_method_checked (image, token, klass, context, &error);
1741 mono_error_cleanup (&error);
1746 mono_get_method_checked (MonoImage *image, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error)
1748 MonoMethod *result = NULL;
1749 gboolean used_context = FALSE;
1751 /* We do everything inside the lock to prevent creation races */
1755 mono_image_lock (image);
1757 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD) {
1758 if (!image->method_cache)
1759 image->method_cache = g_hash_table_new (NULL, NULL);
1760 result = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1761 } else if (!image_is_dynamic (image)) {
1762 if (!image->methodref_cache)
1763 image->methodref_cache = g_hash_table_new (NULL, NULL);
1764 result = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1766 mono_image_unlock (image);
1772 result = mono_get_method_from_token (image, token, klass, context, &used_context, error);
1776 mono_image_lock (image);
1777 if (!used_context && !result->is_inflated) {
1778 MonoMethod *result2 = NULL;
1780 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1781 result2 = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1782 else if (!image_is_dynamic (image))
1783 result2 = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1786 mono_image_unlock (image);
1790 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1791 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)), result);
1792 else if (!image_is_dynamic (image))
1793 g_hash_table_insert (image->methodref_cache, GINT_TO_POINTER (token), result);
1796 mono_image_unlock (image);
1802 get_method_constrained (MonoImage *image, MonoMethod *method, MonoClass *constrained_class, MonoGenericContext *context, MonoError *error)
1805 MonoClass *ic = NULL;
1806 MonoGenericContext *method_context = NULL;
1807 MonoMethodSignature *sig, *original_sig;
1811 mono_class_init (constrained_class);
1812 original_sig = sig = mono_method_signature_checked (method, error);
1817 if (method->is_inflated && sig->generic_param_count) {
1818 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1819 sig = mono_method_signature_checked (imethod->declaring, error); /*We assume that if the inflated method signature is valid, the declaring method is too*/
1822 method_context = mono_method_get_context (method);
1826 * We must inflate the signature with the class instantiation to work on
1827 * cases where a class inherit from a generic type and the override replaces
1828 * any type argument which a concrete type. See #325283.
1830 if (method_context->class_inst) {
1831 MonoGenericContext ctx;
1832 ctx.method_inst = NULL;
1833 ctx.class_inst = method_context->class_inst;
1834 /*Fixme, property propagate this error*/
1835 sig = inflate_generic_signature_checked (method->klass->image, sig, &ctx, error);
1841 if ((constrained_class != method->klass) && (MONO_CLASS_IS_INTERFACE (method->klass)))
1844 result = find_method (constrained_class, ic, method->name, sig, constrained_class, error);
1845 if (sig != original_sig)
1846 mono_metadata_free_inflated_signature (sig);
1851 if (method_context) {
1852 result = mono_class_inflate_generic_method_checked (result, method_context, error);
1861 mono_get_method_constrained_with_method (MonoImage *image, MonoMethod *method, MonoClass *constrained_class,
1862 MonoGenericContext *context, MonoError *error)
1866 return get_method_constrained (image, method, constrained_class, context, error);
1870 * mono_get_method_constrained:
1871 * This is used when JITing the <code>constrained.</code> opcode.
1872 * \returns The contrained method, which has been inflated
1873 * as the function return value; and the original CIL-stream method as
1874 * declared in \p cil_method. The latter is used for verification.
1877 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1878 MonoGenericContext *context, MonoMethod **cil_method)
1881 MonoMethod *result = mono_get_method_constrained_checked (image, token, constrained_class, context, cil_method, &error);
1882 mono_error_cleanup (&error);
1887 mono_get_method_constrained_checked (MonoImage *image, guint32 token, MonoClass *constrained_class, MonoGenericContext *context, MonoMethod **cil_method, MonoError *error)
1891 *cil_method = mono_get_method_from_token (image, token, NULL, context, NULL, error);
1895 return get_method_constrained (image, *cil_method, constrained_class, context, error);
1902 mono_free_method (MonoMethod *method)
1904 MONO_PROFILER_RAISE (method_free, (method));
1906 /* FIXME: This hack will go away when the profiler will support freeing methods */
1907 if (G_UNLIKELY (mono_profiler_installed ()))
1910 if (method->signature) {
1912 * FIXME: This causes crashes because the types inside signatures and
1913 * locals are shared.
1915 /* mono_metadata_free_method_signature (method->signature); */
1916 /* g_free (method->signature); */
1919 if (method_is_dynamic (method)) {
1920 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1923 mono_marshal_free_dynamic_wrappers (method);
1925 mono_image_property_remove (method->klass->image, method);
1927 g_free ((char*)method->name);
1929 g_free ((char*)mw->header->code);
1930 for (i = 0; i < mw->header->num_locals; ++i)
1931 g_free (mw->header->locals [i]);
1932 g_free (mw->header->clauses);
1933 g_free (mw->header);
1935 g_free (mw->method_data);
1936 g_free (method->signature);
1942 * mono_method_get_param_names:
1945 mono_method_get_param_names (MonoMethod *method, const char **names)
1949 MonoTableInfo *methodt;
1950 MonoTableInfo *paramt;
1951 MonoMethodSignature *signature;
1954 if (method->is_inflated)
1955 method = ((MonoMethodInflated *) method)->declaring;
1957 signature = mono_method_signature (method);
1958 /*FIXME this check is somewhat redundant since the caller usally will have to get the signature to figure out the
1959 number of arguments and allocate a properly sized array. */
1960 if (signature == NULL)
1963 if (!signature->param_count)
1966 for (i = 0; i < signature->param_count; ++i)
1969 klass = method->klass;
1973 mono_class_init (klass);
1975 if (image_is_dynamic (klass->image)) {
1976 MonoReflectionMethodAux *method_aux =
1977 (MonoReflectionMethodAux *)g_hash_table_lookup (
1978 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1979 if (method_aux && method_aux->param_names) {
1980 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1981 if (method_aux->param_names [i + 1])
1982 names [i] = method_aux->param_names [i + 1];
1987 if (method->wrapper_type) {
1988 char **pnames = NULL;
1990 mono_image_lock (klass->image);
1991 if (klass->image->wrapper_param_names)
1992 pnames = (char **)g_hash_table_lookup (klass->image->wrapper_param_names, method);
1993 mono_image_unlock (klass->image);
1996 for (i = 0; i < signature->param_count; ++i)
1997 names [i] = pnames [i];
2002 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2003 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2004 idx = mono_method_get_index (method);
2006 guint32 cols [MONO_PARAM_SIZE];
2009 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2011 if (idx < methodt->rows)
2012 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2014 lastp = paramt->rows + 1;
2015 for (i = param_index; i < lastp; ++i) {
2016 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2017 if (cols [MONO_PARAM_SEQUENCE] && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) /* skip return param spec and bounds check*/
2018 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
2024 * mono_method_get_param_token:
2027 mono_method_get_param_token (MonoMethod *method, int index)
2029 MonoClass *klass = method->klass;
2030 MonoTableInfo *methodt;
2033 mono_class_init (klass);
2035 if (image_is_dynamic (klass->image))
2036 g_assert_not_reached ();
2038 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2039 idx = mono_method_get_index (method);
2041 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2045 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
2047 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
2054 * mono_method_get_marshal_info:
2057 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
2060 MonoClass *klass = method->klass;
2061 MonoTableInfo *methodt;
2062 MonoTableInfo *paramt;
2063 MonoMethodSignature *signature;
2066 signature = mono_method_signature (method);
2067 g_assert (signature); /*FIXME there is no way to signal error from this function*/
2069 for (i = 0; i < signature->param_count + 1; ++i)
2072 if (image_is_dynamic (method->klass->image)) {
2073 MonoReflectionMethodAux *method_aux =
2074 (MonoReflectionMethodAux *)g_hash_table_lookup (
2075 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2076 if (method_aux && method_aux->param_marshall) {
2077 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2078 for (i = 0; i < signature->param_count + 1; ++i)
2079 if (dyn_specs [i]) {
2080 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
2081 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
2082 mspecs [i]->data.custom_data.custom_name = g_strdup (dyn_specs [i]->data.custom_data.custom_name);
2083 mspecs [i]->data.custom_data.cookie = g_strdup (dyn_specs [i]->data.custom_data.cookie);
2089 mono_class_init (klass);
2091 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2092 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2093 idx = mono_method_get_index (method);
2095 guint32 cols [MONO_PARAM_SIZE];
2096 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2098 if (idx < methodt->rows)
2099 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2101 lastp = paramt->rows + 1;
2103 for (i = param_index; i < lastp; ++i) {
2104 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2106 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) {
2108 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
2110 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
2119 * mono_method_has_marshal_info:
2122 mono_method_has_marshal_info (MonoMethod *method)
2125 MonoClass *klass = method->klass;
2126 MonoTableInfo *methodt;
2127 MonoTableInfo *paramt;
2130 if (image_is_dynamic (method->klass->image)) {
2131 MonoReflectionMethodAux *method_aux =
2132 (MonoReflectionMethodAux *)g_hash_table_lookup (
2133 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2134 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2136 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
2143 mono_class_init (klass);
2145 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2146 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2147 idx = mono_method_get_index (method);
2149 guint32 cols [MONO_PARAM_SIZE];
2150 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2152 if (idx + 1 < methodt->rows)
2153 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2155 lastp = paramt->rows + 1;
2157 for (i = param_index; i < lastp; ++i) {
2158 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2160 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
2169 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
2172 g_assert (method != NULL);
2173 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
2175 data = (void **)((MonoMethodWrapper *)method)->method_data;
2176 g_assert (data != NULL);
2177 g_assert (id <= GPOINTER_TO_UINT (*data));
2184 } StackWalkUserData;
2187 stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2189 StackWalkUserData *d = (StackWalkUserData *)data;
2191 switch (frame->type) {
2192 case FRAME_TYPE_DEBUGGER_INVOKE:
2193 case FRAME_TYPE_MANAGED_TO_NATIVE:
2194 case FRAME_TYPE_TRAMPOLINE:
2196 case FRAME_TYPE_MANAGED:
2197 g_assert (frame->ji);
2198 return d->func (frame->actual_method, frame->native_offset, frame->il_offset, frame->managed, d->user_data);
2201 g_assert_not_reached ();
2207 mono_stack_walk (MonoStackWalk func, gpointer user_data)
2209 StackWalkUserData ud = { func, user_data };
2210 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_LOOKUP_ALL, &ud);
2214 * mono_stack_walk_no_il:
2217 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
2219 StackWalkUserData ud = { func, user_data };
2220 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_DEFAULT, &ud);
2224 MonoStackWalkAsyncSafe func;
2226 } AsyncStackWalkUserData;
2230 async_stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2232 AsyncStackWalkUserData *d = (AsyncStackWalkUserData *)data;
2234 switch (frame->type) {
2235 case FRAME_TYPE_DEBUGGER_INVOKE:
2236 case FRAME_TYPE_MANAGED_TO_NATIVE:
2237 case FRAME_TYPE_TRAMPOLINE:
2239 case FRAME_TYPE_MANAGED:
2242 if (frame->ji->async) {
2243 return d->func (NULL, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2245 return d->func (frame->actual_method, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2249 g_assert_not_reached ();
2256 * mono_stack_walk_async_safe:
2257 * Async safe version callable from signal handlers.
2260 mono_stack_walk_async_safe (MonoStackWalkAsyncSafe func, void *initial_sig_context, void *user_data)
2263 AsyncStackWalkUserData ud = { func, user_data };
2265 mono_sigctx_to_monoctx (initial_sig_context, &ctx);
2266 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (async_stack_walk_adapter, &ctx, MONO_UNWIND_SIGNAL_SAFE, &ud);
2270 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
2272 MonoMethod **dest = (MonoMethod **)data;
2274 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
2280 * mono_method_get_last_managed:
2283 mono_method_get_last_managed (void)
2285 MonoMethod *m = NULL;
2286 mono_stack_walk_no_il (last_managed, &m);
2290 static gboolean loader_lock_track_ownership = FALSE;
2295 * See \c docs/thread-safety.txt for the locking strategy.
2298 mono_loader_lock (void)
2300 mono_locks_coop_acquire (&loader_mutex, LoaderLock);
2301 if (G_UNLIKELY (loader_lock_track_ownership)) {
2302 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));
2307 * mono_loader_unlock:
2310 mono_loader_unlock (void)
2312 mono_locks_coop_release (&loader_mutex, LoaderLock);
2313 if (G_UNLIKELY (loader_lock_track_ownership)) {
2314 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));
2319 * mono_loader_lock_track_ownership:
2321 * Set whenever the runtime should track ownership of the loader lock. If set to TRUE,
2322 * the mono_loader_lock_is_owned_by_self () can be called to query whenever the current
2323 * thread owns the loader lock.
2326 mono_loader_lock_track_ownership (gboolean track)
2328 loader_lock_track_ownership = track;
2332 * mono_loader_lock_is_owned_by_self:
2334 * Return whenever the current thread owns the loader lock.
2335 * This is useful to avoid blocking operations while holding the loader lock.
2338 mono_loader_lock_is_owned_by_self (void)
2340 g_assert (loader_lock_track_ownership);
2342 return GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) > 0;
2346 * mono_loader_lock_if_inited:
2348 * Acquire the loader lock if it has been initialized, no-op otherwise. This can
2349 * be used in runtime initialization code which can be executed before mono_loader_init ().
2352 mono_loader_lock_if_inited (void)
2354 if (loader_lock_inited)
2355 mono_loader_lock ();
2359 mono_loader_unlock_if_inited (void)
2361 if (loader_lock_inited)
2362 mono_loader_unlock ();
2366 * mono_method_signature_checked:
2368 * Return the signature of the method M. On failure, returns NULL, and ERR is set.
2370 MonoMethodSignature*
2371 mono_method_signature_checked (MonoMethod *m, MonoError *error)
2376 gboolean can_cache_signature;
2377 MonoGenericContainer *container;
2378 MonoMethodSignature *signature = NULL, *sig2;
2381 /* We need memory barriers below because of the double-checked locking pattern */
2386 return m->signature;
2388 img = m->klass->image;
2390 if (m->is_inflated) {
2391 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
2392 /* the lock is recursive */
2393 signature = mono_method_signature (imethod->declaring);
2394 signature = inflate_generic_signature_checked (imethod->declaring->klass->image, signature, mono_method_get_context (m), error);
2395 if (!mono_error_ok (error))
2398 inflated_signatures_size += mono_metadata_signature_size (signature);
2400 mono_image_lock (img);
2402 mono_memory_barrier ();
2404 m->signature = signature;
2406 mono_image_unlock (img);
2408 return m->signature;
2411 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
2412 idx = mono_metadata_token_index (m->token);
2414 sig = mono_metadata_blob_heap (img, sig_offset = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
2416 g_assert (!mono_class_is_ginst (m->klass));
2417 container = mono_method_get_generic_container (m);
2419 container = mono_class_try_get_generic_container (m->klass);
2421 /* Generic signatures depend on the container so they cannot be cached */
2422 /* icall/pinvoke signatures cannot be cached cause we modify them below */
2423 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
2425 /* If the method has parameter attributes, that can modify the signature */
2426 if (mono_metadata_method_has_param_attrs (img, idx))
2427 can_cache_signature = FALSE;
2429 if (can_cache_signature) {
2430 mono_image_lock (img);
2431 signature = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2432 mono_image_unlock (img);
2436 const char *sig_body;
2437 /*TODO we should cache the failure result somewhere*/
2438 if (!mono_verifier_verify_method_signature (img, sig_offset, error))
2441 /* size = */ mono_metadata_decode_blob_size (sig, &sig_body);
2443 signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL, error);
2447 if (can_cache_signature) {
2448 mono_image_lock (img);
2449 sig2 = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2451 g_hash_table_insert (img->method_signatures, (gpointer)sig, signature);
2452 mono_image_unlock (img);
2455 signatures_size += mono_metadata_signature_size (signature);
2458 /* Verify metadata consistency */
2459 if (signature->generic_param_count) {
2460 if (!container || !container->is_method) {
2461 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);
2464 if (container->type_argc != signature->generic_param_count) {
2465 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);
2468 } else if (container && container->is_method && container->type_argc) {
2469 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);
2472 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
2473 signature->pinvoke = 1;
2476 * On Windows the default pinvoke calling convention is STDCALL but
2477 * we need CDECL since this is actually an icall.
2479 signature->call_convention = MONO_CALL_C;
2481 } else if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2482 MonoCallConvention conv = (MonoCallConvention)0;
2483 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
2484 signature->pinvoke = 1;
2486 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
2487 case 0: /* no call conv, so using default */
2488 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
2489 conv = MONO_CALL_DEFAULT;
2491 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
2494 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
2495 conv = MONO_CALL_STDCALL;
2497 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
2498 conv = MONO_CALL_THISCALL;
2500 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
2501 conv = MONO_CALL_FASTCALL;
2503 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
2504 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
2506 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);
2509 signature->call_convention = conv;
2512 mono_image_lock (img);
2514 mono_memory_barrier ();
2516 m->signature = signature;
2518 mono_image_unlock (img);
2520 return m->signature;
2524 * mono_method_signature:
2525 * \returns the signature of the method \p m. On failure, returns NULL.
2527 MonoMethodSignature*
2528 mono_method_signature (MonoMethod *m)
2531 MonoMethodSignature *sig;
2533 sig = mono_method_signature_checked (m, &error);
2535 char *type_name = mono_type_get_full_name (m->klass);
2536 g_warning ("Could not load signature of %s:%s due to: %s", type_name, m->name, mono_error_get_message (&error));
2538 mono_error_cleanup (&error);
2545 * mono_method_get_name:
2548 mono_method_get_name (MonoMethod *method)
2550 return method->name;
2554 * mono_method_get_class:
2557 mono_method_get_class (MonoMethod *method)
2559 return method->klass;
2563 * mono_method_get_token:
2566 mono_method_get_token (MonoMethod *method)
2568 return method->token;
2572 mono_method_get_header_checked (MonoMethod *method, MonoError *error)
2578 MonoGenericContainer *container;
2581 img = method->klass->image;
2583 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)) {
2584 mono_error_set_bad_image (error, img, "Method has no body");
2588 if (method->is_inflated) {
2589 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2590 MonoMethodHeader *header, *iheader;
2592 header = mono_method_get_header_checked (imethod->declaring, error);
2596 iheader = inflate_generic_header (header, mono_method_get_context (method), error);
2597 mono_metadata_free_mh (header);
2605 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
2606 MonoMethodWrapper *mw = (MonoMethodWrapper *)method;
2607 g_assert (mw->header);
2612 * We don't need locks here: the new header is allocated from malloc memory
2613 * and is not stored anywhere in the runtime, the user needs to free it.
2615 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
2616 idx = mono_metadata_token_index (method->token);
2617 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
2619 if (!mono_verifier_verify_method_header (img, rva, NULL)) {
2620 mono_error_set_bad_image (error, img, "Invalid method header, failed verification");
2624 loc = mono_image_rva_map (img, rva);
2626 mono_error_set_bad_image (error, img, "Method has zero rva");
2631 * When parsing the types of local variables, we must pass any container available
2632 * to ensure that both VAR and MVAR will get the right owner.
2634 container = mono_method_get_generic_container (method);
2636 container = mono_class_try_get_generic_container (method->klass);
2637 return mono_metadata_parse_mh_full (img, container, (const char *)loc, error);
2641 * mono_method_get_header:
2644 mono_method_get_header (MonoMethod *method)
2647 MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
2648 mono_error_cleanup (&error);
2654 * mono_method_get_flags:
2657 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
2660 *iflags = method->iflags;
2661 return method->flags;
2665 * mono_method_get_index:
2666 * Find the method index in the metadata \c MethodDef table.
2669 mono_method_get_index (MonoMethod *method)
2671 MonoClass *klass = method->klass;
2675 /* constructed array methods are not in the MethodDef table */
2679 return mono_metadata_token_index (method->token);
2681 mono_class_setup_methods (klass);
2682 if (mono_class_has_failure (klass))
2684 int first_idx = mono_class_get_first_method_idx (klass);
2685 int mcount = mono_class_get_method_count (klass);
2686 for (i = 0; i < mcount; ++i) {
2687 if (method == klass->methods [i]) {
2688 if (klass->image->uncompressed_metadata)
2689 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, first_idx + i + 1);
2691 return first_idx + i + 1;