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 guint32 inflated_signatures_size;
66 static guint32 memberref_sig_cache_size;
67 static guint32 methods_size;
68 static guint32 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);
80 global_loader_data_lock (void)
82 mono_locks_os_acquire (&global_loader_data_mutex, LoaderGlobalDataLock);
86 global_loader_data_unlock (void)
88 mono_locks_os_release (&global_loader_data_mutex, LoaderGlobalDataLock);
94 static gboolean inited;
97 mono_coop_mutex_init_recursive (&loader_mutex);
98 mono_os_mutex_init_recursive (&global_loader_data_mutex);
99 loader_lock_inited = TRUE;
101 mono_native_tls_alloc (&loader_lock_nest_id, NULL);
103 mono_counters_init ();
104 mono_counters_register ("Inflated signatures size",
105 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_signatures_size);
106 mono_counters_register ("Memberref signature cache size",
107 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &memberref_sig_cache_size);
108 mono_counters_register ("MonoMethod size",
109 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &methods_size);
110 mono_counters_register ("MonoMethodSignature size",
111 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &signatures_size);
118 mono_loader_cleanup (void)
122 mono_native_tls_free (loader_lock_nest_id);
124 mono_coop_mutex_destroy (&loader_mutex);
125 mono_os_mutex_destroy (&global_loader_data_mutex);
126 loader_lock_inited = FALSE;
130 * find_cached_memberref_sig:
132 * Return a cached copy of the memberref signature identified by SIG_IDX.
133 * We use a gpointer since the cache stores both MonoTypes and MonoMethodSignatures.
134 * A cache is needed since the type/signature parsing routines allocate everything
135 * from a mempool, so without a cache, multiple requests for the same signature would
136 * lead to unbounded memory growth. For normal methods/fields this is not a problem
137 * since the resulting methods/fields are cached, but inflated methods/fields cannot
139 * LOCKING: Acquires the loader lock.
142 find_cached_memberref_sig (MonoImage *image, guint32 sig_idx)
146 mono_image_lock (image);
147 res = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
148 mono_image_unlock (image);
154 cache_memberref_sig (MonoImage *image, guint32 sig_idx, gpointer sig)
158 mono_image_lock (image);
159 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
161 /* Somebody got in before us */
165 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (sig_idx), sig);
166 /* An approximation based on glib 2.18 */
167 memberref_sig_cache_size += sizeof (gpointer) * 4;
169 mono_image_unlock (image);
174 static MonoClassField*
175 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
176 MonoGenericContext *context, MonoError *error)
178 MonoClass *klass = NULL;
179 MonoClassField *field;
180 MonoTableInfo *tables = image->tables;
183 guint32 nindex, class_index;
186 guint32 idx = mono_metadata_token_index (token);
190 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
191 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
192 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
194 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
196 if (!mono_verifier_verify_memberref_field_signature (image, cols [MONO_MEMBERREF_SIGNATURE], NULL)) {
197 mono_error_set_bad_image (error, image, "Bad field '%u' signature 0x%08x", class_index, token);
201 switch (class_index) {
202 case MONO_MEMBERREF_PARENT_TYPEDEF:
203 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
205 case MONO_MEMBERREF_PARENT_TYPEREF:
206 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
208 case MONO_MEMBERREF_PARENT_TYPESPEC:
209 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, context, error);
212 mono_error_set_bad_image (error, image, "Bad field field '%u' signature 0x%08x", class_index, token);
218 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
219 mono_metadata_decode_blob_size (ptr, &ptr);
220 /* we may want to check the signature here... */
223 mono_error_set_field_load (error, klass, fname, "Bad field signature class token %08x field name %s token %08x", class_index, fname, token);
227 /* FIXME: This needs a cache, especially for generic instances, since
228 * we ask mono_metadata_parse_type_checked () to allocates everything from a mempool.
229 * FIXME part2, mono_metadata_parse_type_checked actually allows for a transient type instead.
230 * FIXME part3, transient types are not 100% transient, so we need to take care of that first.
232 sig_type = (MonoType *)find_cached_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE]);
234 MonoError inner_error;
235 sig_type = mono_metadata_parse_type_checked (image, NULL, 0, FALSE, ptr, &ptr, &inner_error);
236 if (sig_type == NULL) {
237 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));
238 mono_error_cleanup (&inner_error);
241 sig_type = (MonoType *)cache_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE], sig_type);
244 mono_class_init (klass); /*FIXME is this really necessary?*/
247 field = mono_class_get_field_from_name_full (klass, fname, sig_type);
250 mono_error_set_field_load (error, klass, fname, "Could not find field '%s'", fname);
257 * mono_field_from_token:
258 * \deprecated use the \c _checked variant
259 * Notes: runtime code MUST not use this function
262 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context)
265 MonoClassField *res = mono_field_from_token_checked (image, token, retklass, context, &error);
266 g_assert (mono_error_ok (&error));
271 mono_field_from_token_checked (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context, MonoError *error)
275 MonoClassField *field;
279 if (image_is_dynamic (image)) {
280 MonoClassField *result;
281 MonoClass *handle_class;
284 MonoError inner_error;
285 result = (MonoClassField *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context, &inner_error);
286 mono_error_cleanup (&inner_error);
287 // This checks the memberref type as well
288 if (!result || handle_class != mono_defaults.fieldhandle_class) {
289 mono_error_set_bad_image (error, image, "Bad field token 0x%08x", token);
292 *retklass = result->parent;
296 if ((field = (MonoClassField *)mono_conc_hashtable_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
297 *retklass = field->parent;
301 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF) {
302 field = field_from_memberref (image, token, retklass, context, error);
304 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
306 mono_error_set_bad_image (error, image, "Invalid field token 0x%08x", token);
309 k = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
316 field = mono_class_get_field (k, token);
318 mono_error_set_bad_image (error, image, "Could not resolve field token 0x%08x", token);
322 if (field && field->parent && !mono_class_is_ginst (field->parent) && !mono_class_is_gtd (field->parent)) {
323 mono_image_lock (image);
324 mono_conc_hashtable_insert (image->field_cache, GUINT_TO_POINTER (token), field);
325 mono_image_unlock (image);
332 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
336 if (sig1->hasthis != sig2->hasthis ||
337 sig1->sentinelpos != sig2->sentinelpos)
340 for (i = 0; i < sig1->sentinelpos; i++) {
341 MonoType *p1 = sig1->params[i];
342 MonoType *p2 = sig2->params[i];
344 /*if (p1->attrs != p2->attrs)
347 if (!mono_metadata_type_equal (p1, p2))
351 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
357 find_method_in_class (MonoClass *klass, const char *name, const char *qname, const char *fqname,
358 MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
362 /* Search directly in the metadata to avoid calling setup_methods () */
365 /* FIXME: !mono_class_is_ginst (from_class) condition causes test failures. */
366 if (klass->type_token && !image_is_dynamic (klass->image) && !klass->methods && !klass->rank && klass == from_class && !mono_class_is_ginst (from_class)) {
367 int first_idx = mono_class_get_first_method_idx (klass);
368 int mcount = mono_class_get_method_count (klass);
369 for (i = 0; i < mcount; ++i) {
370 guint32 cols [MONO_METHOD_SIZE];
373 MonoMethodSignature *other_sig;
375 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, first_idx + i, cols, MONO_METHOD_SIZE);
377 m_name = mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]);
379 if (!((fqname && !strcmp (m_name, fqname)) ||
380 (qname && !strcmp (m_name, qname)) ||
381 (name && !strcmp (m_name, name))))
384 method = mono_get_method_checked (klass->image, MONO_TOKEN_METHOD_DEF | (first_idx + i + 1), klass, NULL, error);
385 if (!mono_error_ok (error)) //bail out if we hit a loader error
388 other_sig = mono_method_signature_checked (method, error);
389 if (!mono_error_ok (error)) //bail out if we hit a loader error
391 if (other_sig && (sig->call_convention != MONO_CALL_VARARG) && mono_metadata_signature_equal (sig, other_sig))
397 mono_class_setup_methods (klass); /* FIXME don't swallow the error here. */
399 We can't fail lookup of methods otherwise the runtime will fail with MissingMethodException instead of TypeLoadException.
400 See mono/tests/generic-type-load-exception.2.il
401 FIXME we should better report this error to the caller
403 if (!klass->methods || mono_class_has_failure (klass)) {
404 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
408 int mcount = mono_class_get_method_count (klass);
409 for (i = 0; i < mcount; ++i) {
410 MonoMethod *m = klass->methods [i];
411 MonoMethodSignature *msig;
413 /* We must cope with failing to load some of the types. */
417 if (!((fqname && !strcmp (m->name, fqname)) ||
418 (qname && !strcmp (m->name, qname)) ||
419 (name && !strcmp (m->name, name))))
421 msig = mono_method_signature_checked (m, error);
422 if (!mono_error_ok (error)) //bail out if we hit a loader error
428 if (sig->call_convention == MONO_CALL_VARARG) {
429 if (mono_metadata_signature_vararg_match (sig, msig))
432 if (mono_metadata_signature_equal (sig, msig))
438 return mono_class_get_method_by_index (from_class, i);
443 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
446 char *qname, *fqname, *class_name;
447 gboolean is_interface;
448 MonoMethod *result = NULL;
449 MonoClass *initial_class = in_class;
452 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
455 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
457 qname = g_strconcat (class_name, ".", name, NULL);
458 if (ic->name_space && ic->name_space [0])
459 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
463 class_name = qname = fqname = NULL;
466 g_assert (from_class);
467 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class, error);
468 if (result || !mono_error_ok (error))
471 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
475 * This happens when we fail to lazily load the interfaces of one of the types.
476 * On such case we can't just bail out since user code depends on us trying harder.
478 if (from_class->interface_offsets_count != in_class->interface_offsets_count) {
479 in_class = in_class->parent;
480 from_class = from_class->parent;
484 for (i = 0; i < in_class->interface_offsets_count; i++) {
485 MonoClass *in_ic = in_class->interfaces_packed [i];
486 MonoClass *from_ic = from_class->interfaces_packed [i];
487 char *ic_qname, *ic_fqname, *ic_class_name;
489 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
490 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
491 if (in_ic->name_space && in_ic->name_space [0])
492 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
496 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic, error);
497 g_free (ic_class_name);
500 if (result || !mono_error_ok (error))
504 in_class = in_class->parent;
505 from_class = from_class->parent;
507 g_assert (!in_class == !from_class);
510 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class, error);
512 //we did not find the method
513 if (!result && mono_error_ok (error)) {
514 char *desc = mono_signature_get_desc (sig, FALSE);
515 mono_error_set_method_load (error, initial_class, name, "Could not find method with signature %s", desc);
526 static MonoMethodSignature*
527 inflate_generic_signature_checked (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
529 MonoMethodSignature *res;
537 res = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)sig->param_count) * sizeof (MonoType*));
538 res->param_count = sig->param_count;
539 res->sentinelpos = -1;
540 res->ret = mono_class_inflate_generic_type_checked (sig->ret, context, error);
541 if (!mono_error_ok (error))
543 is_open = mono_class_is_open_constructed_type (res->ret);
544 for (i = 0; i < sig->param_count; ++i) {
545 res->params [i] = mono_class_inflate_generic_type_checked (sig->params [i], context, error);
546 if (!mono_error_ok (error))
550 is_open = mono_class_is_open_constructed_type (res->params [i]);
552 res->hasthis = sig->hasthis;
553 res->explicit_this = sig->explicit_this;
554 res->call_convention = sig->call_convention;
555 res->pinvoke = sig->pinvoke;
556 res->generic_param_count = sig->generic_param_count;
557 res->sentinelpos = sig->sentinelpos;
558 res->has_type_parameters = is_open;
559 res->is_inflated = 1;
564 mono_metadata_free_type (res->ret);
565 for (i = 0; i < sig->param_count; ++i) {
567 mono_metadata_free_type (res->params [i]);
574 * mono_inflate_generic_signature:
576 * Inflate \p sig with \p context, and return a canonical copy. On error, set \p error, and return NULL.
579 mono_inflate_generic_signature (MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
581 MonoMethodSignature *res, *cached;
583 res = inflate_generic_signature_checked (NULL, sig, context, error);
584 if (!mono_error_ok (error))
586 cached = mono_metadata_get_inflated_signature (res, context);
588 mono_metadata_free_inflated_signature (res);
592 static MonoMethodHeader*
593 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context, MonoError *error)
595 size_t locals_size = sizeof (gpointer) * header->num_locals;
596 size_t clauses_size = header->num_clauses * sizeof (MonoExceptionClause);
597 size_t header_size = MONO_SIZEOF_METHOD_HEADER + locals_size + clauses_size;
598 MonoMethodHeader *res = (MonoMethodHeader *)g_malloc0 (header_size);
599 res->num_locals = header->num_locals;
600 res->clauses = (MonoExceptionClause *) &res->locals [res->num_locals] ;
601 memcpy (res->clauses, header->clauses, clauses_size);
603 res->code = header->code;
604 res->code_size = header->code_size;
605 res->max_stack = header->max_stack;
606 res->num_clauses = header->num_clauses;
607 res->init_locals = header->init_locals;
609 res->is_transient = TRUE;
613 for (int i = 0; i < header->num_locals; ++i) {
614 res->locals [i] = mono_class_inflate_generic_type_checked (header->locals [i], context, error);
618 if (res->num_clauses) {
619 for (int i = 0; i < header->num_clauses; ++i) {
620 MonoExceptionClause *clause = &res->clauses [i];
621 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
623 clause->data.catch_class = mono_class_inflate_generic_class_checked (clause->data.catch_class, context, error);
635 * mono_method_get_signature_full:
636 * \p token is the method ref/def/spec token used in a \c call IL instruction.
637 * \deprecated use the \c _checked variant
638 * Notes: runtime code MUST not use this function
641 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
644 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, context, &error);
645 mono_error_cleanup (&error);
650 mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error)
652 int table = mono_metadata_token_table (token);
653 int idx = mono_metadata_token_index (token);
655 guint32 cols [MONO_MEMBERREF_SIZE];
656 MonoMethodSignature *sig;
661 /* !table is for wrappers: we should really assign their own token to them */
662 if (!table || table == MONO_TABLE_METHOD)
663 return mono_method_signature_checked (method, error);
665 if (table == MONO_TABLE_METHODSPEC) {
666 /* the verifier (do_invoke_method) will turn the NULL into a verifier error */
667 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || !method->is_inflated) {
668 mono_error_set_bad_image (error, image, "Method is a pinvoke or open generic");
672 return mono_method_signature_checked (method, error);
675 if (mono_class_is_ginst (method->klass))
676 return mono_method_signature_checked (method, error);
678 if (image_is_dynamic (image)) {
679 sig = mono_reflection_lookup_signature (image, method, token, error);
683 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
684 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
686 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
688 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
689 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
690 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
692 //FIXME include the verification error
693 mono_error_set_bad_image (error, image, "Bad method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
697 ptr = mono_metadata_blob_heap (image, sig_idx);
698 mono_metadata_decode_blob_size (ptr, &ptr);
700 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
704 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
706 /* FIXME: we probably should verify signature compat in the dynamic case too*/
707 if (!mono_verifier_is_sig_compatible (image, method, sig)) {
708 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
709 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
711 mono_error_set_bad_image (error, image, "Incompatible method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
717 MonoMethodSignature *cached;
719 /* This signature is not owned by a MonoMethod, so need to cache */
720 sig = inflate_generic_signature_checked (image, sig, context, error);
721 if (!mono_error_ok (error))
724 cached = mono_metadata_get_inflated_signature (sig, context);
726 mono_metadata_free_inflated_signature (sig);
728 inflated_signatures_size += mono_metadata_signature_size (cached);
732 g_assert (mono_error_ok (error));
737 * mono_method_get_signature:
738 * \p token is the method_ref/def/spec token used in a call IL instruction.
739 * \deprecated use the \c _checked variant
740 * Notes: runtime code MUST not use this function
743 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
746 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, NULL, &error);
747 mono_error_cleanup (&error);
751 /* this is only for the typespec array methods */
753 mono_method_search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
757 mono_class_setup_methods (klass);
758 g_assert (!mono_class_has_failure (klass)); /*FIXME this should not fail, right?*/
759 int mcount = mono_class_get_method_count (klass);
760 for (i = 0; i < mcount; ++i) {
761 MonoMethod *method = klass->methods [i];
762 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
769 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
770 gboolean *used_context, MonoError *error)
772 MonoClass *klass = NULL;
773 MonoMethod *method = NULL;
774 MonoTableInfo *tables = image->tables;
776 guint32 nindex, class_index, sig_idx;
778 MonoMethodSignature *sig;
783 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
784 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
785 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
786 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
787 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
789 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
792 * Whether we actually used the `typespec_context' or not.
793 * This is used to tell our caller whether or not it's safe to insert the returned
794 * method into a cache.
797 *used_context = class_index == MONO_MEMBERREF_PARENT_TYPESPEC;
799 switch (class_index) {
800 case MONO_MEMBERREF_PARENT_TYPEREF:
801 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
805 case MONO_MEMBERREF_PARENT_TYPESPEC:
807 * Parse the TYPESPEC in the parent's context.
809 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context, error);
813 case MONO_MEMBERREF_PARENT_TYPEDEF:
814 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
818 case MONO_MEMBERREF_PARENT_METHODDEF: {
819 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, NULL, error);
825 mono_error_set_bad_image (error, image, "Memberref parent unknown: class: %d, index %d", class_index, nindex);
830 mono_class_init (klass);
832 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
834 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
835 mono_error_set_method_load (error, klass, mname, "Verifier rejected method signature");
839 ptr = mono_metadata_blob_heap (image, sig_idx);
840 mono_metadata_decode_blob_size (ptr, &ptr);
842 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
844 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
848 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
851 switch (class_index) {
852 case MONO_MEMBERREF_PARENT_TYPEREF:
853 case MONO_MEMBERREF_PARENT_TYPEDEF:
854 method = find_method (klass, NULL, mname, sig, klass, error);
857 case MONO_MEMBERREF_PARENT_TYPESPEC: {
860 type = &klass->byval_arg;
862 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
863 MonoClass *in_class = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->container_class : klass;
864 method = find_method (in_class, NULL, mname, sig, klass, error);
868 /* we're an array and we created these methods already in klass in mono_class_init () */
869 method = mono_method_search_in_array_class (klass, mname, sig);
873 mono_error_set_bad_image (error, image,"Memberref parent unknown: class: %d, index %d", class_index, nindex);
877 if (!method && mono_error_ok (error)) {
878 char *msig = mono_signature_get_desc (sig, FALSE);
879 GString *s = g_string_new (mname);
880 if (sig->generic_param_count)
881 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
882 g_string_append_printf (s, "(%s)", msig);
884 msig = g_string_free (s, FALSE);
886 mono_error_set_method_load (error, klass, mname, "Could not find method %s", msig);
894 g_assert (!mono_error_ok (error));
899 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx, MonoError *error)
903 MonoTableInfo *tables = image->tables;
904 MonoGenericContext new_context;
905 MonoGenericInst *inst;
907 guint32 cols [MONO_METHODSPEC_SIZE];
908 guint32 token, nindex, param_count;
912 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
913 token = cols [MONO_METHODSPEC_METHOD];
914 nindex = token >> MONO_METHODDEFORREF_BITS;
916 if (!mono_verifier_verify_methodspec_signature (image, cols [MONO_METHODSPEC_SIGNATURE], NULL)) {
917 mono_error_set_bad_image (error, image, "Bad method signals signature 0x%08x", idx);
921 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
923 mono_metadata_decode_value (ptr, &ptr);
925 param_count = mono_metadata_decode_value (ptr, &ptr);
927 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr, error);
931 if (context && inst->is_open) {
932 inst = mono_metadata_inflate_generic_inst (inst, context, error);
933 if (!mono_error_ok (error))
937 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF) {
938 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context, error);
942 method = method_from_memberref (image, nindex, context, NULL, error);
948 klass = method->klass;
950 if (mono_class_is_ginst (klass)) {
951 g_assert (method->is_inflated);
952 method = ((MonoMethodInflated *) method)->declaring;
955 new_context.class_inst = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->context.class_inst : NULL;
956 new_context.method_inst = inst;
958 method = mono_class_inflate_generic_method_full_checked (method, klass, &new_context, error);
970 static MonoDllMap *global_dll_map;
973 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
981 global_loader_data_lock ();
984 * we use the first entry we find that matches, since entries from
985 * the config file are prepended to the list and we document that the
988 for (; dll_map; dll_map = dll_map->next) {
989 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
990 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
992 } else if (strcmp (dll_map->dll, dll)) {
995 if (!found && dll_map->target) {
996 *rdll = dll_map->target;
998 /* we don't quit here, because we could find a full
999 * entry that matches also function and that has priority.
1002 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
1003 *rdll = dll_map->target;
1004 *rfunc = dll_map->target_func;
1009 global_loader_data_unlock ();
1014 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
1017 if (assembly && assembly->dll_map) {
1018 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
1022 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
1026 * mono_dllmap_insert:
1027 * \param assembly if NULL, this is a global mapping, otherwise the remapping of the dynamic library will only apply to the specified assembly
1028 * \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
1029 * \param func if not null, the mapping will only applied to the named function (the value of <code>EntryPoint</code>)
1030 * \param tdll The name of the library to map the specified \p dll if it matches.
1031 * \param tfunc The name of the function that replaces the invocation. If NULL, it is replaced with a copy of \p func.
1033 * LOCKING: Acquires the loader lock.
1035 * This function is used to programatically add \c DllImport remapping in either
1036 * a specific assembly, or as a global remapping. This is done by remapping
1037 * references in a \c DllImport attribute from the \p dll library name into the \p tdll
1038 * name. If the \p dll name contains the prefix <code>i:</code>, the comparison of the
1039 * library name is done without case sensitivity.
1041 * If you pass \p func, this is the name of the \c EntryPoint in a \c DllImport if specified
1042 * or the name of the function as determined by \c DllImport. If you pass \p func, you
1043 * must also pass \p tfunc which is the name of the target function to invoke on a match.
1047 * <code>mono_dllmap_insert (NULL, "i:libdemo.dll", NULL, relocated_demo_path, NULL);</code>
1049 * The above will remap \c DllImport statements for \c libdemo.dll and \c LIBDEMO.DLL to
1050 * the contents of \c relocated_demo_path for all assemblies in the Mono process.
1052 * NOTE: This can be called before the runtime is initialized, for example from
1053 * \c mono_config_parse.
1056 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc)
1060 mono_loader_init ();
1063 entry = (MonoDllMap *)g_malloc0 (sizeof (MonoDllMap));
1064 entry->dll = dll? g_strdup (dll): NULL;
1065 entry->target = tdll? g_strdup (tdll): NULL;
1066 entry->func = func? g_strdup (func): NULL;
1067 entry->target_func = tfunc? g_strdup (tfunc): (func? g_strdup (func): NULL);
1069 global_loader_data_lock ();
1070 entry->next = global_dll_map;
1071 global_dll_map = entry;
1072 global_loader_data_unlock ();
1074 entry = (MonoDllMap *)mono_image_alloc0 (assembly, sizeof (MonoDllMap));
1075 entry->dll = dll? mono_image_strdup (assembly, dll): NULL;
1076 entry->target = tdll? mono_image_strdup (assembly, tdll): NULL;
1077 entry->func = func? mono_image_strdup (assembly, func): NULL;
1078 entry->target_func = tfunc? mono_image_strdup (assembly, tfunc): (func? mono_image_strdup (assembly, func): NULL);
1080 mono_image_lock (assembly);
1081 entry->next = assembly->dll_map;
1082 assembly->dll_map = entry;
1083 mono_image_unlock (assembly);
1088 free_dllmap (MonoDllMap *map)
1091 MonoDllMap *next = map->next;
1094 g_free (map->target);
1096 g_free (map->target_func);
1103 dllmap_cleanup (void)
1105 free_dllmap (global_dll_map);
1106 global_dll_map = NULL;
1109 static GHashTable *global_module_map;
1112 cached_module_load (const char *name, int flags, char **err)
1118 global_loader_data_lock ();
1119 if (!global_module_map)
1120 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1121 res = (MonoDl *)g_hash_table_lookup (global_module_map, name);
1123 global_loader_data_unlock ();
1126 res = mono_dl_open (name, flags, err);
1128 g_hash_table_insert (global_module_map, g_strdup (name), res);
1129 global_loader_data_unlock ();
1134 mono_loader_register_module (const char *name, MonoDl *module)
1136 if (!global_module_map)
1137 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1138 g_hash_table_insert (global_module_map, g_strdup (name), module);
1141 static MonoDl *internal_module;
1144 is_absolute_path (const char *path)
1147 if (!strncmp (path, "@executable_path/", 17) || !strncmp (path, "@loader_path/", 13) ||
1148 !strncmp (path, "@rpath/", 7))
1151 return g_path_is_absolute (path);
1155 * mono_lookup_pinvoke_call:
1158 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1160 MonoImage *image = method->klass->image;
1161 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1162 MonoTableInfo *tables = image->tables;
1163 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1164 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1165 guint32 im_cols [MONO_IMPLMAP_SIZE];
1166 guint32 scope_token;
1167 const char *import = NULL;
1168 const char *orig_scope;
1169 const char *new_scope;
1171 char *full_name, *file_name, *found_name = NULL;
1173 MonoDl *module = NULL;
1174 gboolean cached = FALSE;
1175 gpointer addr = NULL;
1177 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1185 return piinfo->addr;
1187 if (image_is_dynamic (method->klass->image)) {
1188 MonoReflectionMethodAux *method_aux =
1189 (MonoReflectionMethodAux *)g_hash_table_lookup (
1190 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1194 import = method_aux->dllentry;
1195 orig_scope = method_aux->dll;
1198 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
1201 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1203 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
1206 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1207 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1208 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1209 orig_scope = mono_metadata_string_heap (image, scope_token);
1212 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1215 mono_image_lock (image);
1216 if (!image->pinvoke_scopes) {
1217 image->pinvoke_scopes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1218 image->pinvoke_scope_filenames = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1220 module = (MonoDl *)g_hash_table_lookup (image->pinvoke_scopes, new_scope);
1221 found_name = (char *)g_hash_table_lookup (image->pinvoke_scope_filenames, new_scope);
1222 mono_image_unlock (image);
1226 found_name = g_strdup (found_name);
1230 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1231 "DllImport attempting to load: '%s'.", new_scope);
1233 /* we allow a special name to dlopen from the running process namespace */
1234 if (strcmp (new_scope, "__Internal") == 0){
1235 if (internal_module == NULL)
1236 internal_module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1237 module = internal_module;
1242 * Try loading the module using a variety of names
1244 for (i = 0; i < 5; ++i) {
1245 char *base_name = NULL, *dir_name = NULL;
1246 gboolean is_absolute = is_absolute_path (new_scope);
1250 /* Try the original name */
1251 file_name = g_strdup (new_scope);
1254 /* Try trimming the .dll extension */
1255 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1256 file_name = g_strdup (new_scope);
1257 file_name [strlen (new_scope) - 4] = '\0';
1264 dir_name = g_path_get_dirname (new_scope);
1265 base_name = g_path_get_basename (new_scope);
1266 if (strstr (base_name, "lib") != base_name) {
1267 char *tmp = g_strdup_printf ("lib%s", base_name);
1270 file_name = g_strdup_printf ("%s%s%s", dir_name, G_DIR_SEPARATOR_S, base_name);
1273 } else if (strstr (new_scope, "lib") != new_scope) {
1274 file_name = g_strdup_printf ("lib%s", new_scope);
1279 if (!is_absolute && mono_dl_get_system_dir ()) {
1280 dir_name = (char*)mono_dl_get_system_dir ();
1281 file_name = g_path_get_basename (new_scope);
1287 #ifndef TARGET_WIN32
1288 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1289 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1290 !g_ascii_strcasecmp ("user32", new_scope) ||
1291 !g_ascii_strcasecmp ("kernel", new_scope)) {
1292 file_name = g_strdup ("libMonoSupportW.so");
1296 #ifndef TARGET_WIN32
1303 dir_name = g_path_get_dirname (file_name);
1305 base_name = g_path_get_basename (file_name);
1308 if (!module && is_absolute) {
1309 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1311 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1312 "DllImport error loading library '%s': '%s'.",
1313 file_name, error_msg);
1316 found_name = g_strdup (file_name);
1320 if (!module && !is_absolute) {
1324 for (j = 0; j < 3; ++j) {
1329 mdirname = g_path_get_dirname (image->name);
1331 case 1: /* @executable_path@/../lib */
1335 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1337 char *base, *newbase;
1340 resolvedname = mono_path_resolve_symlinks (buf);
1342 base = g_path_get_dirname (resolvedname);
1343 newbase = g_path_get_dirname(base);
1344 mdirname = g_strdup_printf ("%s/lib", newbase);
1346 g_free (resolvedname);
1353 case 2: /* @executable_path@/../Libraries */
1357 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1359 char *base, *newbase;
1362 resolvedname = mono_path_resolve_symlinks (buf);
1364 base = g_path_get_dirname (resolvedname);
1365 newbase = g_path_get_dirname(base);
1366 mdirname = g_strdup_printf ("%s/Libraries", newbase);
1368 g_free (resolvedname);
1380 while ((full_name = mono_dl_build_path (mdirname, file_name, &iter))) {
1381 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1383 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1384 "DllImport error loading library '%s': '%s'.",
1385 full_name, error_msg);
1388 found_name = g_strdup (full_name);
1404 char *file_or_base = is_absolute ? base_name : file_name;
1405 while ((full_name = mono_dl_build_path (dir_name, file_or_base, &iter))) {
1406 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1408 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1409 "DllImport error loading library '%s': '%s'.",
1410 full_name, error_msg);
1413 found_name = g_strdup (full_name);
1422 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1424 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1425 "DllImport error loading library '%s': '%s'.",
1426 file_name, error_msg);
1428 found_name = g_strdup (file_name);
1443 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1444 "DllImport unable to load library '%s'.",
1449 *exc_class = "DllNotFoundException";
1450 *exc_arg = new_scope;
1456 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1457 "DllImport loaded library '%s'.", found_name);
1458 mono_image_lock (image);
1459 if (!g_hash_table_lookup (image->pinvoke_scopes, new_scope)) {
1460 g_hash_table_insert (image->pinvoke_scopes, g_strdup (new_scope), module);
1461 g_hash_table_insert (image->pinvoke_scope_filenames, g_strdup (new_scope), g_strdup (found_name));
1463 mono_image_unlock (image);
1466 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1467 "DllImport searching in: '%s' ('%s').", new_scope, found_name);
1468 g_free (found_name);
1471 if (import && import [0] == '#' && isdigit (import [1])) {
1475 id = strtol (import + 1, &end, 10);
1476 if (id > 0 && *end == '\0')
1480 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1481 "Searching for '%s'.", import);
1483 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1484 error_msg = mono_dl_symbol (module, import, &addr);
1486 char *mangled_name = NULL, *mangled_name2 = NULL;
1489 int mangle_param_count;
1495 * Search using a variety of mangled names
1497 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1498 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1499 gboolean need_param_count = FALSE;
1501 if (mangle_stdcall > 0)
1502 need_param_count = TRUE;
1504 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1509 mangled_name = (char*)import;
1510 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1511 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1512 /* Try the mangled name first */
1513 if (mangle_charset == 0)
1514 mangled_name = g_strconcat (import, "W", NULL);
1516 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1518 if (mangle_charset == 0)
1519 mangled_name = g_strconcat (import, "W", NULL);
1521 /* Try the mangled name last */
1522 if (mangle_charset == 1)
1523 mangled_name = g_strconcat (import, "A", NULL);
1526 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1528 /* Try the mangled name last */
1529 if (mangle_charset == 1)
1530 mangled_name = g_strconcat (import, "A", NULL);
1535 if (mangle_param_count == 0)
1536 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1538 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1539 param_count = mangle_param_count;
1541 /* Try the stdcall mangled name */
1543 * gcc under windows creates mangled names without the underscore, but MS.NET
1544 * doesn't support it, so we doesn't support it either.
1546 if (mangle_stdcall == 1)
1547 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1549 mangled_name2 = mangled_name;
1551 mangled_name2 = mangled_name;
1554 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1555 "Probing '%s'.", mangled_name2);
1557 error_msg = mono_dl_symbol (module, mangled_name2, &addr);
1560 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1561 "Found as '%s'.", mangled_name2);
1563 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1564 "Could not find '%s' due to '%s'.", mangled_name2, error_msg);
1569 if (mangled_name != mangled_name2)
1570 g_free (mangled_name2);
1571 if (mangled_name != import)
1572 g_free (mangled_name);
1581 *exc_class = "EntryPointNotFoundException";
1586 piinfo->addr = addr;
1591 * LOCKING: assumes the loader lock to be taken.
1594 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1595 MonoGenericContext *context, gboolean *used_context, MonoError *error)
1598 int table = mono_metadata_token_table (token);
1599 int idx = mono_metadata_token_index (token);
1600 MonoTableInfo *tables = image->tables;
1601 MonoGenericContainer *generic_container = NULL, *container = NULL;
1602 const char *sig = NULL;
1603 guint32 cols [MONO_TYPEDEF_SIZE];
1607 if (image_is_dynamic (image)) {
1608 MonoClass *handle_class;
1610 result = (MonoMethod *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context, error);
1611 mono_error_assert_ok (error);
1613 // This checks the memberref type as well
1614 if (result && handle_class != mono_defaults.methodhandle_class) {
1615 mono_error_set_bad_image (error, image, "Bad method token 0x%08x on dynamic image", token);
1621 if (table != MONO_TABLE_METHOD) {
1622 if (table == MONO_TABLE_METHODSPEC) {
1623 if (used_context) *used_context = TRUE;
1624 return method_from_methodspec (image, context, idx, error);
1626 if (table != MONO_TABLE_MEMBERREF) {
1627 mono_error_set_bad_image (error, image, "Bad method token 0x%08x.", token);
1630 return method_from_memberref (image, idx, context, used_context, error);
1633 if (used_context) *used_context = FALSE;
1635 if (idx > image->tables [MONO_TABLE_METHOD].rows) {
1636 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (out of bounds).", token);
1641 guint32 type = mono_metadata_typedef_from_method (image, token);
1643 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (could not find corresponding typedef).", token);
1646 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
1651 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1653 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1654 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1655 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethodPInvoke));
1657 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethod));
1658 methods_size += sizeof (MonoMethod);
1661 InterlockedIncrement (&mono_stats.method_count);
1664 result->klass = klass;
1665 result->flags = cols [2];
1666 result->iflags = cols [1];
1667 result->token = token;
1668 result->name = mono_metadata_string_heap (image, cols [3]);
1670 if (!sig) /* already taken from the methodref */
1671 sig = mono_metadata_blob_heap (image, cols [4]);
1672 /* size = */ mono_metadata_decode_blob_size (sig, &sig);
1674 container = mono_class_try_get_generic_container (klass);
1677 * load_generic_params does a binary search so only call it if the method
1681 generic_container = mono_metadata_load_generic_params (image, token, container);
1683 if (generic_container) {
1684 result->is_generic = TRUE;
1685 generic_container->owner.method = result;
1686 generic_container->is_anonymous = FALSE; // Method is now known, container is no longer anonymous
1687 /*FIXME put this before the image alloc*/
1688 if (!mono_metadata_load_generic_param_constraints_checked (image, token, generic_container, error))
1691 container = generic_container;
1694 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1695 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1696 result->string_ctor = 1;
1697 } else if (cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1698 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1701 /* IJW is P/Invoke with a predefined function pointer. */
1702 if (image->is_module_handle && (cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
1703 piinfo->addr = mono_image_rva_map (image, cols [0]);
1704 g_assert (piinfo->addr);
1707 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1708 /* Native methods can have no map. */
1709 if (piinfo->implmap_idx)
1710 piinfo->piflags = mono_metadata_decode_row_col (&tables [MONO_TABLE_IMPLMAP], piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1713 if (generic_container)
1714 mono_method_set_generic_container (result, generic_container);
1723 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1726 MonoMethod *result = mono_get_method_checked (image, token, klass, NULL, &error);
1727 mono_error_cleanup (&error);
1732 * mono_get_method_full:
1735 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1736 MonoGenericContext *context)
1739 MonoMethod *result = mono_get_method_checked (image, token, klass, context, &error);
1740 mono_error_cleanup (&error);
1745 mono_get_method_checked (MonoImage *image, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error)
1747 MonoMethod *result = NULL;
1748 gboolean used_context = FALSE;
1750 /* We do everything inside the lock to prevent creation races */
1754 mono_image_lock (image);
1756 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD) {
1757 if (!image->method_cache)
1758 image->method_cache = g_hash_table_new (NULL, NULL);
1759 result = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1760 } else if (!image_is_dynamic (image)) {
1761 if (!image->methodref_cache)
1762 image->methodref_cache = g_hash_table_new (NULL, NULL);
1763 result = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1765 mono_image_unlock (image);
1771 result = mono_get_method_from_token (image, token, klass, context, &used_context, error);
1775 mono_image_lock (image);
1776 if (!used_context && !result->is_inflated) {
1777 MonoMethod *result2 = NULL;
1779 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1780 result2 = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1781 else if (!image_is_dynamic (image))
1782 result2 = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1785 mono_image_unlock (image);
1789 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1790 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)), result);
1791 else if (!image_is_dynamic (image))
1792 g_hash_table_insert (image->methodref_cache, GINT_TO_POINTER (token), result);
1795 mono_image_unlock (image);
1801 get_method_constrained (MonoImage *image, MonoMethod *method, MonoClass *constrained_class, MonoGenericContext *context, MonoError *error)
1804 MonoClass *ic = NULL;
1805 MonoGenericContext *method_context = NULL;
1806 MonoMethodSignature *sig, *original_sig;
1810 mono_class_init (constrained_class);
1811 original_sig = sig = mono_method_signature_checked (method, error);
1816 if (method->is_inflated && sig->generic_param_count) {
1817 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1818 sig = mono_method_signature_checked (imethod->declaring, error); /*We assume that if the inflated method signature is valid, the declaring method is too*/
1821 method_context = mono_method_get_context (method);
1825 * We must inflate the signature with the class instantiation to work on
1826 * cases where a class inherit from a generic type and the override replaces
1827 * any type argument which a concrete type. See #325283.
1829 if (method_context->class_inst) {
1830 MonoGenericContext ctx;
1831 ctx.method_inst = NULL;
1832 ctx.class_inst = method_context->class_inst;
1833 /*Fixme, property propagate this error*/
1834 sig = inflate_generic_signature_checked (method->klass->image, sig, &ctx, error);
1840 if ((constrained_class != method->klass) && (MONO_CLASS_IS_INTERFACE (method->klass)))
1843 result = find_method (constrained_class, ic, method->name, sig, constrained_class, error);
1844 if (sig != original_sig)
1845 mono_metadata_free_inflated_signature (sig);
1850 if (method_context) {
1851 result = mono_class_inflate_generic_method_checked (result, method_context, error);
1860 mono_get_method_constrained_with_method (MonoImage *image, MonoMethod *method, MonoClass *constrained_class,
1861 MonoGenericContext *context, MonoError *error)
1865 return get_method_constrained (image, method, constrained_class, context, error);
1869 * mono_get_method_constrained:
1870 * This is used when JITing the <code>constrained.</code> opcode.
1871 * \returns The contrained method, which has been inflated
1872 * as the function return value; and the original CIL-stream method as
1873 * declared in \p cil_method. The latter is used for verification.
1876 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1877 MonoGenericContext *context, MonoMethod **cil_method)
1880 MonoMethod *result = mono_get_method_constrained_checked (image, token, constrained_class, context, cil_method, &error);
1881 mono_error_cleanup (&error);
1886 mono_get_method_constrained_checked (MonoImage *image, guint32 token, MonoClass *constrained_class, MonoGenericContext *context, MonoMethod **cil_method, MonoError *error)
1890 *cil_method = mono_get_method_checked (image, token, NULL, context, error);
1894 return get_method_constrained (image, *cil_method, constrained_class, context, error);
1901 mono_free_method (MonoMethod *method)
1903 MONO_PROFILER_RAISE (method_free, (method));
1905 /* FIXME: This hack will go away when the profiler will support freeing methods */
1906 if (G_UNLIKELY (mono_profiler_installed ()))
1909 if (method->signature) {
1911 * FIXME: This causes crashes because the types inside signatures and
1912 * locals are shared.
1914 /* mono_metadata_free_method_signature (method->signature); */
1915 /* g_free (method->signature); */
1918 if (method_is_dynamic (method)) {
1919 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1922 mono_marshal_free_dynamic_wrappers (method);
1924 mono_image_property_remove (method->klass->image, method);
1926 g_free ((char*)method->name);
1928 g_free ((char*)mw->header->code);
1929 for (i = 0; i < mw->header->num_locals; ++i)
1930 g_free (mw->header->locals [i]);
1931 g_free (mw->header->clauses);
1932 g_free (mw->header);
1934 g_free (mw->method_data);
1935 g_free (method->signature);
1941 * mono_method_get_param_names:
1944 mono_method_get_param_names (MonoMethod *method, const char **names)
1948 MonoTableInfo *methodt;
1949 MonoTableInfo *paramt;
1950 MonoMethodSignature *signature;
1953 if (method->is_inflated)
1954 method = ((MonoMethodInflated *) method)->declaring;
1956 signature = mono_method_signature (method);
1957 /*FIXME this check is somewhat redundant since the caller usally will have to get the signature to figure out the
1958 number of arguments and allocate a properly sized array. */
1959 if (signature == NULL)
1962 if (!signature->param_count)
1965 for (i = 0; i < signature->param_count; ++i)
1968 klass = method->klass;
1972 mono_class_init (klass);
1974 if (image_is_dynamic (klass->image)) {
1975 MonoReflectionMethodAux *method_aux =
1976 (MonoReflectionMethodAux *)g_hash_table_lookup (
1977 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1978 if (method_aux && method_aux->param_names) {
1979 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1980 if (method_aux->param_names [i + 1])
1981 names [i] = method_aux->param_names [i + 1];
1986 if (method->wrapper_type) {
1987 char **pnames = NULL;
1989 mono_image_lock (klass->image);
1990 if (klass->image->wrapper_param_names)
1991 pnames = (char **)g_hash_table_lookup (klass->image->wrapper_param_names, method);
1992 mono_image_unlock (klass->image);
1995 for (i = 0; i < signature->param_count; ++i)
1996 names [i] = pnames [i];
2001 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2002 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2003 idx = mono_method_get_index (method);
2005 guint32 cols [MONO_PARAM_SIZE];
2008 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2010 if (idx < methodt->rows)
2011 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2013 lastp = paramt->rows + 1;
2014 for (i = param_index; i < lastp; ++i) {
2015 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2016 if (cols [MONO_PARAM_SEQUENCE] && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) /* skip return param spec and bounds check*/
2017 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
2023 * mono_method_get_param_token:
2026 mono_method_get_param_token (MonoMethod *method, int index)
2028 MonoClass *klass = method->klass;
2029 MonoTableInfo *methodt;
2032 mono_class_init (klass);
2034 if (image_is_dynamic (klass->image))
2035 g_assert_not_reached ();
2037 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2038 idx = mono_method_get_index (method);
2040 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2044 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
2046 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
2053 * mono_method_get_marshal_info:
2056 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
2059 MonoClass *klass = method->klass;
2060 MonoTableInfo *methodt;
2061 MonoTableInfo *paramt;
2062 MonoMethodSignature *signature;
2065 signature = mono_method_signature (method);
2066 g_assert (signature); /*FIXME there is no way to signal error from this function*/
2068 for (i = 0; i < signature->param_count + 1; ++i)
2071 if (image_is_dynamic (method->klass->image)) {
2072 MonoReflectionMethodAux *method_aux =
2073 (MonoReflectionMethodAux *)g_hash_table_lookup (
2074 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2075 if (method_aux && method_aux->param_marshall) {
2076 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2077 for (i = 0; i < signature->param_count + 1; ++i)
2078 if (dyn_specs [i]) {
2079 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
2080 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
2081 mspecs [i]->data.custom_data.custom_name = g_strdup (dyn_specs [i]->data.custom_data.custom_name);
2082 mspecs [i]->data.custom_data.cookie = g_strdup (dyn_specs [i]->data.custom_data.cookie);
2088 mono_class_init (klass);
2090 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2091 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2092 idx = mono_method_get_index (method);
2094 guint32 cols [MONO_PARAM_SIZE];
2095 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2097 if (idx < methodt->rows)
2098 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2100 lastp = paramt->rows + 1;
2102 for (i = param_index; i < lastp; ++i) {
2103 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2105 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) {
2107 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
2109 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
2118 * mono_method_has_marshal_info:
2121 mono_method_has_marshal_info (MonoMethod *method)
2124 MonoClass *klass = method->klass;
2125 MonoTableInfo *methodt;
2126 MonoTableInfo *paramt;
2129 if (image_is_dynamic (method->klass->image)) {
2130 MonoReflectionMethodAux *method_aux =
2131 (MonoReflectionMethodAux *)g_hash_table_lookup (
2132 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2133 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2135 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
2142 mono_class_init (klass);
2144 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2145 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2146 idx = mono_method_get_index (method);
2148 guint32 cols [MONO_PARAM_SIZE];
2149 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2151 if (idx + 1 < methodt->rows)
2152 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2154 lastp = paramt->rows + 1;
2156 for (i = param_index; i < lastp; ++i) {
2157 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2159 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
2168 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
2171 g_assert (method != NULL);
2172 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
2174 data = (void **)((MonoMethodWrapper *)method)->method_data;
2175 g_assert (data != NULL);
2176 g_assert (id <= GPOINTER_TO_UINT (*data));
2183 } StackWalkUserData;
2186 stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2188 StackWalkUserData *d = (StackWalkUserData *)data;
2190 switch (frame->type) {
2191 case FRAME_TYPE_DEBUGGER_INVOKE:
2192 case FRAME_TYPE_MANAGED_TO_NATIVE:
2193 case FRAME_TYPE_TRAMPOLINE:
2195 case FRAME_TYPE_MANAGED:
2196 g_assert (frame->ji);
2197 return d->func (frame->actual_method, frame->native_offset, frame->il_offset, frame->managed, d->user_data);
2200 g_assert_not_reached ();
2206 mono_stack_walk (MonoStackWalk func, gpointer user_data)
2208 StackWalkUserData ud = { func, user_data };
2209 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_LOOKUP_ALL, &ud);
2213 * mono_stack_walk_no_il:
2216 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
2218 StackWalkUserData ud = { func, user_data };
2219 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_DEFAULT, &ud);
2223 MonoStackWalkAsyncSafe func;
2225 } AsyncStackWalkUserData;
2229 async_stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2231 AsyncStackWalkUserData *d = (AsyncStackWalkUserData *)data;
2233 switch (frame->type) {
2234 case FRAME_TYPE_DEBUGGER_INVOKE:
2235 case FRAME_TYPE_MANAGED_TO_NATIVE:
2236 case FRAME_TYPE_TRAMPOLINE:
2238 case FRAME_TYPE_MANAGED:
2241 if (frame->ji->async) {
2242 return d->func (NULL, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2244 return d->func (frame->actual_method, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2248 g_assert_not_reached ();
2255 * mono_stack_walk_async_safe:
2256 * Async safe version callable from signal handlers.
2259 mono_stack_walk_async_safe (MonoStackWalkAsyncSafe func, void *initial_sig_context, void *user_data)
2262 AsyncStackWalkUserData ud = { func, user_data };
2264 mono_sigctx_to_monoctx (initial_sig_context, &ctx);
2265 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (async_stack_walk_adapter, &ctx, MONO_UNWIND_SIGNAL_SAFE, &ud);
2269 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
2271 MonoMethod **dest = (MonoMethod **)data;
2273 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
2279 * mono_method_get_last_managed:
2282 mono_method_get_last_managed (void)
2284 MonoMethod *m = NULL;
2285 mono_stack_walk_no_il (last_managed, &m);
2289 static gboolean loader_lock_track_ownership = FALSE;
2294 * See \c docs/thread-safety.txt for the locking strategy.
2297 mono_loader_lock (void)
2299 mono_locks_coop_acquire (&loader_mutex, LoaderLock);
2300 if (G_UNLIKELY (loader_lock_track_ownership)) {
2301 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));
2306 * mono_loader_unlock:
2309 mono_loader_unlock (void)
2311 mono_locks_coop_release (&loader_mutex, LoaderLock);
2312 if (G_UNLIKELY (loader_lock_track_ownership)) {
2313 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));
2318 * mono_loader_lock_track_ownership:
2320 * Set whenever the runtime should track ownership of the loader lock. If set to TRUE,
2321 * the mono_loader_lock_is_owned_by_self () can be called to query whenever the current
2322 * thread owns the loader lock.
2325 mono_loader_lock_track_ownership (gboolean track)
2327 loader_lock_track_ownership = track;
2331 * mono_loader_lock_is_owned_by_self:
2333 * Return whenever the current thread owns the loader lock.
2334 * This is useful to avoid blocking operations while holding the loader lock.
2337 mono_loader_lock_is_owned_by_self (void)
2339 g_assert (loader_lock_track_ownership);
2341 return GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) > 0;
2345 * mono_loader_lock_if_inited:
2347 * Acquire the loader lock if it has been initialized, no-op otherwise. This can
2348 * be used in runtime initialization code which can be executed before mono_loader_init ().
2351 mono_loader_lock_if_inited (void)
2353 if (loader_lock_inited)
2354 mono_loader_lock ();
2358 mono_loader_unlock_if_inited (void)
2360 if (loader_lock_inited)
2361 mono_loader_unlock ();
2365 * mono_method_signature_checked:
2367 * Return the signature of the method M. On failure, returns NULL, and ERR is set.
2369 MonoMethodSignature*
2370 mono_method_signature_checked (MonoMethod *m, MonoError *error)
2375 gboolean can_cache_signature;
2376 MonoGenericContainer *container;
2377 MonoMethodSignature *signature = NULL, *sig2;
2380 /* We need memory barriers below because of the double-checked locking pattern */
2385 return m->signature;
2387 img = m->klass->image;
2389 if (m->is_inflated) {
2390 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
2391 /* the lock is recursive */
2392 signature = mono_method_signature (imethod->declaring);
2393 signature = inflate_generic_signature_checked (imethod->declaring->klass->image, signature, mono_method_get_context (m), error);
2394 if (!mono_error_ok (error))
2397 inflated_signatures_size += mono_metadata_signature_size (signature);
2399 mono_image_lock (img);
2401 mono_memory_barrier ();
2403 m->signature = signature;
2405 mono_image_unlock (img);
2407 return m->signature;
2410 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
2411 idx = mono_metadata_token_index (m->token);
2413 sig = mono_metadata_blob_heap (img, sig_offset = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
2415 g_assert (!mono_class_is_ginst (m->klass));
2416 container = mono_method_get_generic_container (m);
2418 container = mono_class_try_get_generic_container (m->klass);
2420 /* Generic signatures depend on the container so they cannot be cached */
2421 /* icall/pinvoke signatures cannot be cached cause we modify them below */
2422 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
2424 /* If the method has parameter attributes, that can modify the signature */
2425 if (mono_metadata_method_has_param_attrs (img, idx))
2426 can_cache_signature = FALSE;
2428 if (can_cache_signature) {
2429 mono_image_lock (img);
2430 signature = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2431 mono_image_unlock (img);
2435 const char *sig_body;
2436 /*TODO we should cache the failure result somewhere*/
2437 if (!mono_verifier_verify_method_signature (img, sig_offset, error))
2440 /* size = */ mono_metadata_decode_blob_size (sig, &sig_body);
2442 signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL, error);
2446 if (can_cache_signature) {
2447 mono_image_lock (img);
2448 sig2 = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2450 g_hash_table_insert (img->method_signatures, (gpointer)sig, signature);
2451 mono_image_unlock (img);
2454 signatures_size += mono_metadata_signature_size (signature);
2457 /* Verify metadata consistency */
2458 if (signature->generic_param_count) {
2459 if (!container || !container->is_method) {
2460 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);
2463 if (container->type_argc != signature->generic_param_count) {
2464 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);
2467 } else if (container && container->is_method && container->type_argc) {
2468 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);
2471 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
2472 signature->pinvoke = 1;
2475 * On Windows the default pinvoke calling convention is STDCALL but
2476 * we need CDECL since this is actually an icall.
2478 signature->call_convention = MONO_CALL_C;
2480 } else if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2481 MonoCallConvention conv = (MonoCallConvention)0;
2482 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
2483 signature->pinvoke = 1;
2485 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
2486 case 0: /* no call conv, so using default */
2487 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
2488 conv = MONO_CALL_DEFAULT;
2490 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
2493 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
2494 conv = MONO_CALL_STDCALL;
2496 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
2497 conv = MONO_CALL_THISCALL;
2499 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
2500 conv = MONO_CALL_FASTCALL;
2502 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
2503 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
2505 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);
2508 signature->call_convention = conv;
2511 mono_image_lock (img);
2513 mono_memory_barrier ();
2515 m->signature = signature;
2517 mono_image_unlock (img);
2519 return m->signature;
2523 * mono_method_signature:
2524 * \returns the signature of the method \p m. On failure, returns NULL.
2526 MonoMethodSignature*
2527 mono_method_signature (MonoMethod *m)
2530 MonoMethodSignature *sig;
2532 sig = mono_method_signature_checked (m, &error);
2534 char *type_name = mono_type_get_full_name (m->klass);
2535 g_warning ("Could not load signature of %s:%s due to: %s", type_name, m->name, mono_error_get_message (&error));
2537 mono_error_cleanup (&error);
2544 * mono_method_get_name:
2547 mono_method_get_name (MonoMethod *method)
2549 return method->name;
2553 * mono_method_get_class:
2556 mono_method_get_class (MonoMethod *method)
2558 return method->klass;
2562 * mono_method_get_token:
2565 mono_method_get_token (MonoMethod *method)
2567 return method->token;
2571 mono_method_get_header_checked (MonoMethod *method, MonoError *error)
2577 MonoGenericContainer *container;
2580 img = method->klass->image;
2582 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)) {
2583 mono_error_set_bad_image (error, img, "Method has no body");
2587 if (method->is_inflated) {
2588 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2589 MonoMethodHeader *header, *iheader;
2591 header = mono_method_get_header_checked (imethod->declaring, error);
2595 iheader = inflate_generic_header (header, mono_method_get_context (method), error);
2596 mono_metadata_free_mh (header);
2604 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
2605 MonoMethodWrapper *mw = (MonoMethodWrapper *)method;
2606 g_assert (mw->header);
2611 * We don't need locks here: the new header is allocated from malloc memory
2612 * and is not stored anywhere in the runtime, the user needs to free it.
2614 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
2615 idx = mono_metadata_token_index (method->token);
2616 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
2618 if (!mono_verifier_verify_method_header (img, rva, NULL)) {
2619 mono_error_set_bad_image (error, img, "Invalid method header, failed verification");
2623 loc = mono_image_rva_map (img, rva);
2625 mono_error_set_bad_image (error, img, "Method has zero rva");
2630 * When parsing the types of local variables, we must pass any container available
2631 * to ensure that both VAR and MVAR will get the right owner.
2633 container = mono_method_get_generic_container (method);
2635 container = mono_class_try_get_generic_container (method->klass);
2636 return mono_metadata_parse_mh_full (img, container, (const char *)loc, error);
2640 * mono_method_get_header:
2643 mono_method_get_header (MonoMethod *method)
2646 MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
2647 mono_error_cleanup (&error);
2653 * mono_method_get_flags:
2656 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
2659 *iflags = method->iflags;
2660 return method->flags;
2664 * mono_method_get_index:
2665 * Find the method index in the metadata \c MethodDef table.
2668 mono_method_get_index (MonoMethod *method)
2670 MonoClass *klass = method->klass;
2674 /* constructed array methods are not in the MethodDef table */
2678 return mono_metadata_token_index (method->token);
2680 mono_class_setup_methods (klass);
2681 if (mono_class_has_failure (klass))
2683 int first_idx = mono_class_get_first_method_idx (klass);
2684 int mcount = mono_class_get_method_count (klass);
2685 for (i = 0; i < mcount; ++i) {
2686 if (method == klass->methods [i]) {
2687 if (klass->image->uncompressed_metadata)
2688 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, first_idx + i + 1);
2690 return first_idx + i + 1;