6 * Paolo Molaro (lupus@ximian.com)
7 * Miguel de Icaza (miguel@ximian.com)
8 * Patrik Torstensson (patrik.torstensson@labs2.com)
10 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
11 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
12 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
14 * This file is used by the interpreter and the JIT engine to locate
15 * assemblies. Used to load AssemblyRef and later to resolve various
19 * This should keep track of the assembly versions that we are loading.
21 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
28 #include <mono/metadata/metadata.h>
29 #include <mono/metadata/image.h>
30 #include <mono/metadata/assembly.h>
31 #include <mono/metadata/tokentype.h>
32 #include <mono/metadata/tabledefs.h>
33 #include <mono/metadata/metadata-internals.h>
34 #include <mono/metadata/loader.h>
35 #include <mono/metadata/class-internals.h>
36 #include <mono/metadata/debug-helpers.h>
37 #include <mono/metadata/reflection.h>
38 #include <mono/metadata/profiler-private.h>
39 #include <mono/metadata/exception.h>
40 #include <mono/metadata/marshal.h>
41 #include <mono/metadata/lock-tracer.h>
42 #include <mono/metadata/verify-internals.h>
43 #include <mono/utils/mono-logger-internals.h>
44 #include <mono/utils/mono-dl.h>
45 #include <mono/utils/mono-membar.h>
46 #include <mono/utils/mono-counters.h>
47 #include <mono/utils/mono-error-internals.h>
48 #include <mono/utils/mono-tls.h>
49 #include <mono/utils/mono-path.h>
51 MonoDefaults mono_defaults;
54 * This lock protects the hash tables inside MonoImage used by the metadata
55 * loading functions in class.c and loader.c.
57 * See domain-internals.h for locking policy in combination with the
60 static MonoCoopMutex loader_mutex;
61 static mono_mutex_t global_loader_data_mutex;
62 static gboolean loader_lock_inited;
65 static gint32 inflated_signatures_size;
66 static gint32 memberref_sig_cache_size;
67 static gint32 methods_size;
68 static gint32 signatures_size;
71 * This TLS variable holds how many times the current thread has acquired the loader
74 MonoNativeTlsKey loader_lock_nest_id;
76 static void dllmap_cleanup (void);
77 static void cached_module_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)
121 cached_module_cleanup ();
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 InterlockedAdd (&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 if (mono_class_has_failure (k)) {
318 MonoError causedby_error;
319 error_init (&causedby_error);
320 mono_error_set_for_class_failure (&causedby_error, k);
321 mono_error_set_bad_image (error, image, "Could not resolve field token 0x%08x, due to: %s", token, mono_error_get_message (&causedby_error));
322 mono_error_cleanup (&causedby_error);
324 field = mono_class_get_field (k, token);
326 mono_error_set_bad_image (error, image, "Could not resolve field token 0x%08x", token);
331 if (field && field->parent && !mono_class_is_ginst (field->parent) && !mono_class_is_gtd (field->parent)) {
332 mono_image_lock (image);
333 mono_conc_hashtable_insert (image->field_cache, GUINT_TO_POINTER (token), field);
334 mono_image_unlock (image);
341 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
345 if (sig1->hasthis != sig2->hasthis ||
346 sig1->sentinelpos != sig2->sentinelpos)
349 for (i = 0; i < sig1->sentinelpos; i++) {
350 MonoType *p1 = sig1->params[i];
351 MonoType *p2 = sig2->params[i];
353 /*if (p1->attrs != p2->attrs)
356 if (!mono_metadata_type_equal (p1, p2))
360 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
366 find_method_in_class (MonoClass *klass, const char *name, const char *qname, const char *fqname,
367 MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
371 /* Search directly in the metadata to avoid calling setup_methods () */
374 /* FIXME: !mono_class_is_ginst (from_class) condition causes test failures. */
375 if (klass->type_token && !image_is_dynamic (klass->image) && !klass->methods && !klass->rank && klass == from_class && !mono_class_is_ginst (from_class)) {
376 int first_idx = mono_class_get_first_method_idx (klass);
377 int mcount = mono_class_get_method_count (klass);
378 for (i = 0; i < mcount; ++i) {
379 guint32 cols [MONO_METHOD_SIZE];
382 MonoMethodSignature *other_sig;
384 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, first_idx + i, cols, MONO_METHOD_SIZE);
386 m_name = mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]);
388 if (!((fqname && !strcmp (m_name, fqname)) ||
389 (qname && !strcmp (m_name, qname)) ||
390 (name && !strcmp (m_name, name))))
393 method = mono_get_method_checked (klass->image, MONO_TOKEN_METHOD_DEF | (first_idx + i + 1), klass, NULL, error);
394 if (!mono_error_ok (error)) //bail out if we hit a loader error
397 other_sig = mono_method_signature_checked (method, error);
398 if (!mono_error_ok (error)) //bail out if we hit a loader error
400 if (other_sig && (sig->call_convention != MONO_CALL_VARARG) && mono_metadata_signature_equal (sig, other_sig))
406 mono_class_setup_methods (klass); /* FIXME don't swallow the error here. */
408 We can't fail lookup of methods otherwise the runtime will fail with MissingMethodException instead of TypeLoadException.
409 See mono/tests/generic-type-load-exception.2.il
410 FIXME we should better report this error to the caller
412 if (!klass->methods || mono_class_has_failure (klass)) {
413 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
417 int mcount = mono_class_get_method_count (klass);
418 for (i = 0; i < mcount; ++i) {
419 MonoMethod *m = klass->methods [i];
420 MonoMethodSignature *msig;
422 /* We must cope with failing to load some of the types. */
426 if (!((fqname && !strcmp (m->name, fqname)) ||
427 (qname && !strcmp (m->name, qname)) ||
428 (name && !strcmp (m->name, name))))
430 msig = mono_method_signature_checked (m, error);
431 if (!mono_error_ok (error)) //bail out if we hit a loader error
437 if (sig->call_convention == MONO_CALL_VARARG) {
438 if (mono_metadata_signature_vararg_match (sig, msig))
441 if (mono_metadata_signature_equal (sig, msig))
447 return mono_class_get_method_by_index (from_class, i);
452 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
455 char *qname, *fqname, *class_name;
456 gboolean is_interface;
457 MonoMethod *result = NULL;
458 MonoClass *initial_class = in_class;
461 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
464 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
466 qname = g_strconcat (class_name, ".", name, NULL);
467 if (ic->name_space && ic->name_space [0])
468 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
472 class_name = qname = fqname = NULL;
475 g_assert (from_class);
476 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class, error);
477 if (result || !mono_error_ok (error))
480 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
484 * This happens when we fail to lazily load the interfaces of one of the types.
485 * On such case we can't just bail out since user code depends on us trying harder.
487 if (from_class->interface_offsets_count != in_class->interface_offsets_count) {
488 in_class = in_class->parent;
489 from_class = from_class->parent;
493 for (i = 0; i < in_class->interface_offsets_count; i++) {
494 MonoClass *in_ic = in_class->interfaces_packed [i];
495 MonoClass *from_ic = from_class->interfaces_packed [i];
496 char *ic_qname, *ic_fqname, *ic_class_name;
498 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
499 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
500 if (in_ic->name_space && in_ic->name_space [0])
501 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
505 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic, error);
506 g_free (ic_class_name);
509 if (result || !mono_error_ok (error))
513 in_class = in_class->parent;
514 from_class = from_class->parent;
516 g_assert (!in_class == !from_class);
519 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class, error);
521 //we did not find the method
522 if (!result && mono_error_ok (error)) {
523 char *desc = mono_signature_get_desc (sig, FALSE);
524 mono_error_set_method_load (error, initial_class, name, "Could not find method with signature %s", desc);
535 static MonoMethodSignature*
536 inflate_generic_signature_checked (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
538 MonoMethodSignature *res;
546 res = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)sig->param_count) * sizeof (MonoType*));
547 res->param_count = sig->param_count;
548 res->sentinelpos = -1;
549 res->ret = mono_class_inflate_generic_type_checked (sig->ret, context, error);
550 if (!mono_error_ok (error))
552 is_open = mono_class_is_open_constructed_type (res->ret);
553 for (i = 0; i < sig->param_count; ++i) {
554 res->params [i] = mono_class_inflate_generic_type_checked (sig->params [i], context, error);
555 if (!mono_error_ok (error))
559 is_open = mono_class_is_open_constructed_type (res->params [i]);
561 res->hasthis = sig->hasthis;
562 res->explicit_this = sig->explicit_this;
563 res->call_convention = sig->call_convention;
564 res->pinvoke = sig->pinvoke;
565 res->generic_param_count = sig->generic_param_count;
566 res->sentinelpos = sig->sentinelpos;
567 res->has_type_parameters = is_open;
568 res->is_inflated = 1;
573 mono_metadata_free_type (res->ret);
574 for (i = 0; i < sig->param_count; ++i) {
576 mono_metadata_free_type (res->params [i]);
583 * mono_inflate_generic_signature:
585 * Inflate \p sig with \p context, and return a canonical copy. On error, set \p error, and return NULL.
588 mono_inflate_generic_signature (MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
590 MonoMethodSignature *res, *cached;
592 res = inflate_generic_signature_checked (NULL, sig, context, error);
593 if (!mono_error_ok (error))
595 cached = mono_metadata_get_inflated_signature (res, context);
597 mono_metadata_free_inflated_signature (res);
601 static MonoMethodHeader*
602 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context, MonoError *error)
604 size_t locals_size = sizeof (gpointer) * header->num_locals;
605 size_t clauses_size = header->num_clauses * sizeof (MonoExceptionClause);
606 size_t header_size = MONO_SIZEOF_METHOD_HEADER + locals_size + clauses_size;
607 MonoMethodHeader *res = (MonoMethodHeader *)g_malloc0 (header_size);
608 res->num_locals = header->num_locals;
609 res->clauses = (MonoExceptionClause *) &res->locals [res->num_locals] ;
610 memcpy (res->clauses, header->clauses, clauses_size);
612 res->code = header->code;
613 res->code_size = header->code_size;
614 res->max_stack = header->max_stack;
615 res->num_clauses = header->num_clauses;
616 res->init_locals = header->init_locals;
618 res->is_transient = TRUE;
622 for (int i = 0; i < header->num_locals; ++i) {
623 res->locals [i] = mono_class_inflate_generic_type_checked (header->locals [i], context, error);
627 if (res->num_clauses) {
628 for (int i = 0; i < header->num_clauses; ++i) {
629 MonoExceptionClause *clause = &res->clauses [i];
630 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
632 clause->data.catch_class = mono_class_inflate_generic_class_checked (clause->data.catch_class, context, error);
644 * mono_method_get_signature_full:
645 * \p token is the method ref/def/spec token used in a \c call IL instruction.
646 * \deprecated use the \c _checked variant
647 * Notes: runtime code MUST not use this function
650 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
653 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, context, &error);
654 mono_error_cleanup (&error);
659 mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error)
661 int table = mono_metadata_token_table (token);
662 int idx = mono_metadata_token_index (token);
664 guint32 cols [MONO_MEMBERREF_SIZE];
665 MonoMethodSignature *sig;
670 /* !table is for wrappers: we should really assign their own token to them */
671 if (!table || table == MONO_TABLE_METHOD)
672 return mono_method_signature_checked (method, error);
674 if (table == MONO_TABLE_METHODSPEC) {
675 /* the verifier (do_invoke_method) will turn the NULL into a verifier error */
676 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || !method->is_inflated) {
677 mono_error_set_bad_image (error, image, "Method is a pinvoke or open generic");
681 return mono_method_signature_checked (method, error);
684 if (mono_class_is_ginst (method->klass))
685 return mono_method_signature_checked (method, error);
687 if (image_is_dynamic (image)) {
688 sig = mono_reflection_lookup_signature (image, method, token, error);
692 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
693 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
695 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
697 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
698 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
699 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
701 //FIXME include the verification error
702 mono_error_set_bad_image (error, image, "Bad method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
706 ptr = mono_metadata_blob_heap (image, sig_idx);
707 mono_metadata_decode_blob_size (ptr, &ptr);
709 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
713 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
715 /* FIXME: we probably should verify signature compat in the dynamic case too*/
716 if (!mono_verifier_is_sig_compatible (image, method, sig)) {
717 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
718 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
720 mono_error_set_bad_image (error, image, "Incompatible method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
726 MonoMethodSignature *cached;
728 /* This signature is not owned by a MonoMethod, so need to cache */
729 sig = inflate_generic_signature_checked (image, sig, context, error);
730 if (!mono_error_ok (error))
733 cached = mono_metadata_get_inflated_signature (sig, context);
735 mono_metadata_free_inflated_signature (sig);
737 InterlockedAdd (&inflated_signatures_size, mono_metadata_signature_size (cached));
741 g_assert (mono_error_ok (error));
746 * mono_method_get_signature:
747 * \p token is the method_ref/def/spec token used in a call IL instruction.
748 * \deprecated use the \c _checked variant
749 * Notes: runtime code MUST not use this function
752 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
755 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, NULL, &error);
756 mono_error_cleanup (&error);
760 /* this is only for the typespec array methods */
762 mono_method_search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
766 mono_class_setup_methods (klass);
767 g_assert (!mono_class_has_failure (klass)); /*FIXME this should not fail, right?*/
768 int mcount = mono_class_get_method_count (klass);
769 for (i = 0; i < mcount; ++i) {
770 MonoMethod *method = klass->methods [i];
771 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
778 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
779 gboolean *used_context, MonoError *error)
781 MonoClass *klass = NULL;
782 MonoMethod *method = NULL;
783 MonoTableInfo *tables = image->tables;
785 guint32 nindex, class_index, sig_idx;
787 MonoMethodSignature *sig;
792 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
793 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
794 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
795 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
796 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
798 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
801 * Whether we actually used the `typespec_context' or not.
802 * This is used to tell our caller whether or not it's safe to insert the returned
803 * method into a cache.
806 *used_context = class_index == MONO_MEMBERREF_PARENT_TYPESPEC;
808 switch (class_index) {
809 case MONO_MEMBERREF_PARENT_TYPEREF:
810 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
814 case MONO_MEMBERREF_PARENT_TYPESPEC:
816 * Parse the TYPESPEC in the parent's context.
818 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context, error);
822 case MONO_MEMBERREF_PARENT_TYPEDEF:
823 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
827 case MONO_MEMBERREF_PARENT_METHODDEF: {
828 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, NULL, error);
834 mono_error_set_bad_image (error, image, "Memberref parent unknown: class: %d, index %d", class_index, nindex);
839 mono_class_init (klass);
841 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
843 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
844 mono_error_set_method_load (error, klass, mname, "Verifier rejected method signature");
848 ptr = mono_metadata_blob_heap (image, sig_idx);
849 mono_metadata_decode_blob_size (ptr, &ptr);
851 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
853 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
857 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
860 switch (class_index) {
861 case MONO_MEMBERREF_PARENT_TYPEREF:
862 case MONO_MEMBERREF_PARENT_TYPEDEF:
863 method = find_method (klass, NULL, mname, sig, klass, error);
866 case MONO_MEMBERREF_PARENT_TYPESPEC: {
869 type = &klass->byval_arg;
871 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
872 MonoClass *in_class = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->container_class : klass;
873 method = find_method (in_class, NULL, mname, sig, klass, error);
877 /* we're an array and we created these methods already in klass in mono_class_init () */
878 method = mono_method_search_in_array_class (klass, mname, sig);
882 mono_error_set_bad_image (error, image,"Memberref parent unknown: class: %d, index %d", class_index, nindex);
886 if (!method && mono_error_ok (error)) {
887 char *msig = mono_signature_get_desc (sig, FALSE);
888 GString *s = g_string_new (mname);
889 if (sig->generic_param_count)
890 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
891 g_string_append_printf (s, "(%s)", msig);
893 msig = g_string_free (s, FALSE);
895 mono_error_set_method_load (error, klass, mname, "Could not find method %s", msig);
903 g_assert (!mono_error_ok (error));
908 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx, MonoError *error)
912 MonoTableInfo *tables = image->tables;
913 MonoGenericContext new_context;
914 MonoGenericInst *inst;
916 guint32 cols [MONO_METHODSPEC_SIZE];
917 guint32 token, nindex, param_count;
921 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
922 token = cols [MONO_METHODSPEC_METHOD];
923 nindex = token >> MONO_METHODDEFORREF_BITS;
925 if (!mono_verifier_verify_methodspec_signature (image, cols [MONO_METHODSPEC_SIGNATURE], NULL)) {
926 mono_error_set_bad_image (error, image, "Bad method signals signature 0x%08x", idx);
930 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
932 mono_metadata_decode_value (ptr, &ptr);
934 param_count = mono_metadata_decode_value (ptr, &ptr);
936 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr, error);
940 if (context && inst->is_open) {
941 inst = mono_metadata_inflate_generic_inst (inst, context, error);
942 if (!mono_error_ok (error))
946 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF) {
947 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context, error);
951 method = method_from_memberref (image, nindex, context, NULL, error);
957 klass = method->klass;
959 if (mono_class_is_ginst (klass)) {
960 g_assert (method->is_inflated);
961 method = ((MonoMethodInflated *) method)->declaring;
964 new_context.class_inst = mono_class_is_ginst (klass) ? mono_class_get_generic_class (klass)->context.class_inst : NULL;
965 new_context.method_inst = inst;
967 method = mono_class_inflate_generic_method_full_checked (method, klass, &new_context, error);
979 static MonoDllMap *global_dll_map;
982 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
990 global_loader_data_lock ();
993 * we use the first entry we find that matches, since entries from
994 * the config file are prepended to the list and we document that the
997 for (; dll_map; dll_map = dll_map->next) {
998 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
999 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
1001 } else if (strcmp (dll_map->dll, dll)) {
1004 if (!found && dll_map->target) {
1005 *rdll = dll_map->target;
1007 /* we don't quit here, because we could find a full
1008 * entry that matches also function and that has priority.
1011 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
1012 *rdll = dll_map->target;
1013 *rfunc = dll_map->target_func;
1018 global_loader_data_unlock ();
1023 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
1026 if (assembly && assembly->dll_map) {
1027 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
1031 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
1035 * mono_dllmap_insert:
1036 * \param assembly if NULL, this is a global mapping, otherwise the remapping of the dynamic library will only apply to the specified assembly
1037 * \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
1038 * \param func if not null, the mapping will only applied to the named function (the value of <code>EntryPoint</code>)
1039 * \param tdll The name of the library to map the specified \p dll if it matches.
1040 * \param tfunc The name of the function that replaces the invocation. If NULL, it is replaced with a copy of \p func.
1042 * LOCKING: Acquires the loader lock.
1044 * This function is used to programatically add \c DllImport remapping in either
1045 * a specific assembly, or as a global remapping. This is done by remapping
1046 * references in a \c DllImport attribute from the \p dll library name into the \p tdll
1047 * name. If the \p dll name contains the prefix <code>i:</code>, the comparison of the
1048 * library name is done without case sensitivity.
1050 * If you pass \p func, this is the name of the \c EntryPoint in a \c DllImport if specified
1051 * or the name of the function as determined by \c DllImport. If you pass \p func, you
1052 * must also pass \p tfunc which is the name of the target function to invoke on a match.
1056 * <code>mono_dllmap_insert (NULL, "i:libdemo.dll", NULL, relocated_demo_path, NULL);</code>
1058 * The above will remap \c DllImport statements for \c libdemo.dll and \c LIBDEMO.DLL to
1059 * the contents of \c relocated_demo_path for all assemblies in the Mono process.
1061 * NOTE: This can be called before the runtime is initialized, for example from
1062 * \c mono_config_parse.
1065 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc)
1069 mono_loader_init ();
1072 entry = (MonoDllMap *)g_malloc0 (sizeof (MonoDllMap));
1073 entry->dll = dll? g_strdup (dll): NULL;
1074 entry->target = tdll? g_strdup (tdll): NULL;
1075 entry->func = func? g_strdup (func): NULL;
1076 entry->target_func = tfunc? g_strdup (tfunc): (func? g_strdup (func): NULL);
1078 global_loader_data_lock ();
1079 entry->next = global_dll_map;
1080 global_dll_map = entry;
1081 global_loader_data_unlock ();
1083 entry = (MonoDllMap *)mono_image_alloc0 (assembly, sizeof (MonoDllMap));
1084 entry->dll = dll? mono_image_strdup (assembly, dll): NULL;
1085 entry->target = tdll? mono_image_strdup (assembly, tdll): NULL;
1086 entry->func = func? mono_image_strdup (assembly, func): NULL;
1087 entry->target_func = tfunc? mono_image_strdup (assembly, tfunc): (func? mono_image_strdup (assembly, func): NULL);
1089 mono_image_lock (assembly);
1090 entry->next = assembly->dll_map;
1091 assembly->dll_map = entry;
1092 mono_image_unlock (assembly);
1097 free_dllmap (MonoDllMap *map)
1100 MonoDllMap *next = map->next;
1103 g_free (map->target);
1105 g_free (map->target_func);
1112 dllmap_cleanup (void)
1114 free_dllmap (global_dll_map);
1115 global_dll_map = NULL;
1118 static GHashTable *global_module_map;
1121 cached_module_load (const char *name, int flags, char **err)
1127 global_loader_data_lock ();
1128 if (!global_module_map)
1129 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1130 res = (MonoDl *)g_hash_table_lookup (global_module_map, name);
1132 global_loader_data_unlock ();
1135 res = mono_dl_open (name, flags, err);
1137 g_hash_table_insert (global_module_map, g_strdup (name), res);
1138 global_loader_data_unlock ();
1143 mono_loader_register_module (const char *name, MonoDl *module)
1145 if (!global_module_map)
1146 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1147 g_hash_table_insert (global_module_map, g_strdup (name), module);
1151 remove_cached_module(gpointer key, gpointer value, gpointer user_data)
1153 mono_dl_close((MonoDl*)value);
1157 cached_module_cleanup(void)
1159 if (global_module_map != NULL) {
1160 g_hash_table_foreach(global_module_map, remove_cached_module, NULL);
1162 g_hash_table_destroy(global_module_map);
1163 global_module_map = NULL;
1167 static MonoDl *internal_module;
1170 is_absolute_path (const char *path)
1173 if (!strncmp (path, "@executable_path/", 17) || !strncmp (path, "@loader_path/", 13) ||
1174 !strncmp (path, "@rpath/", 7))
1177 return g_path_is_absolute (path);
1181 * mono_lookup_pinvoke_call:
1184 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1186 MonoImage *image = method->klass->image;
1187 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1188 MonoTableInfo *tables = image->tables;
1189 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1190 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1191 guint32 im_cols [MONO_IMPLMAP_SIZE];
1192 guint32 scope_token;
1193 const char *import = NULL;
1194 const char *orig_scope;
1195 const char *new_scope;
1197 char *full_name, *file_name, *found_name = NULL;
1199 MonoDl *module = NULL;
1200 gboolean cached = FALSE;
1201 gpointer addr = NULL;
1203 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1211 return piinfo->addr;
1213 if (image_is_dynamic (method->klass->image)) {
1214 MonoReflectionMethodAux *method_aux =
1215 (MonoReflectionMethodAux *)g_hash_table_lookup (
1216 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1220 import = method_aux->dllentry;
1221 orig_scope = method_aux->dll;
1224 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
1227 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1229 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
1232 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1233 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1234 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1235 orig_scope = mono_metadata_string_heap (image, scope_token);
1238 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1241 mono_image_lock (image);
1242 if (!image->pinvoke_scopes) {
1243 image->pinvoke_scopes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1244 image->pinvoke_scope_filenames = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1246 module = (MonoDl *)g_hash_table_lookup (image->pinvoke_scopes, new_scope);
1247 found_name = (char *)g_hash_table_lookup (image->pinvoke_scope_filenames, new_scope);
1248 mono_image_unlock (image);
1252 found_name = g_strdup (found_name);
1256 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1257 "DllImport attempting to load: '%s'.", new_scope);
1259 /* we allow a special name to dlopen from the running process namespace */
1260 if (strcmp (new_scope, "__Internal") == 0){
1261 if (internal_module == NULL)
1262 internal_module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1263 module = internal_module;
1268 * Try loading the module using a variety of names
1270 for (i = 0; i < 5; ++i) {
1271 char *base_name = NULL, *dir_name = NULL;
1272 gboolean is_absolute = is_absolute_path (new_scope);
1276 /* Try the original name */
1277 file_name = g_strdup (new_scope);
1280 /* Try trimming the .dll extension */
1281 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1282 file_name = g_strdup (new_scope);
1283 file_name [strlen (new_scope) - 4] = '\0';
1290 dir_name = g_path_get_dirname (new_scope);
1291 base_name = g_path_get_basename (new_scope);
1292 if (strstr (base_name, "lib") != base_name) {
1293 char *tmp = g_strdup_printf ("lib%s", base_name);
1296 file_name = g_strdup_printf ("%s%s%s", dir_name, G_DIR_SEPARATOR_S, base_name);
1299 } else if (strstr (new_scope, "lib") != new_scope) {
1300 file_name = g_strdup_printf ("lib%s", new_scope);
1305 if (!is_absolute && mono_dl_get_system_dir ()) {
1306 dir_name = (char*)mono_dl_get_system_dir ();
1307 file_name = g_path_get_basename (new_scope);
1313 #ifndef TARGET_WIN32
1314 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1315 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1316 !g_ascii_strcasecmp ("user32", new_scope) ||
1317 !g_ascii_strcasecmp ("kernel", new_scope)) {
1318 file_name = g_strdup ("libMonoSupportW.so");
1322 #ifndef TARGET_WIN32
1329 dir_name = g_path_get_dirname (file_name);
1331 base_name = g_path_get_basename (file_name);
1334 if (!module && is_absolute) {
1335 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1337 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1338 "DllImport error loading library '%s': '%s'.",
1339 file_name, error_msg);
1342 found_name = g_strdup (file_name);
1346 if (!module && !is_absolute) {
1350 for (j = 0; j < 3; ++j) {
1355 mdirname = g_path_get_dirname (image->name);
1357 case 1: /* @executable_path@/../lib */
1361 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1363 char *base, *newbase;
1366 resolvedname = mono_path_resolve_symlinks (buf);
1368 base = g_path_get_dirname (resolvedname);
1369 newbase = g_path_get_dirname(base);
1370 mdirname = g_strdup_printf ("%s/lib", newbase);
1372 g_free (resolvedname);
1379 case 2: /* @executable_path@/../Libraries */
1383 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1385 char *base, *newbase;
1388 resolvedname = mono_path_resolve_symlinks (buf);
1390 base = g_path_get_dirname (resolvedname);
1391 newbase = g_path_get_dirname(base);
1392 mdirname = g_strdup_printf ("%s/Libraries", newbase);
1394 g_free (resolvedname);
1406 while ((full_name = mono_dl_build_path (mdirname, file_name, &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);
1430 char *file_or_base = is_absolute ? base_name : file_name;
1431 while ((full_name = mono_dl_build_path (dir_name, file_or_base, &iter))) {
1432 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1434 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1435 "DllImport error loading library '%s': '%s'.",
1436 full_name, error_msg);
1439 found_name = g_strdup (full_name);
1448 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1450 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1451 "DllImport error loading library '%s': '%s'.",
1452 file_name, error_msg);
1454 found_name = g_strdup (file_name);
1469 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1470 "DllImport unable to load library '%s'.",
1475 *exc_class = "DllNotFoundException";
1476 *exc_arg = new_scope;
1482 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1483 "DllImport loaded library '%s'.", found_name);
1484 mono_image_lock (image);
1485 if (!g_hash_table_lookup (image->pinvoke_scopes, new_scope)) {
1486 g_hash_table_insert (image->pinvoke_scopes, g_strdup (new_scope), module);
1487 g_hash_table_insert (image->pinvoke_scope_filenames, g_strdup (new_scope), g_strdup (found_name));
1489 mono_image_unlock (image);
1492 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1493 "DllImport searching in: '%s' ('%s').", new_scope, found_name);
1494 g_free (found_name);
1497 if (import && import [0] == '#' && isdigit (import [1])) {
1501 id = strtol (import + 1, &end, 10);
1502 if (id > 0 && *end == '\0')
1506 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1507 "Searching for '%s'.", import);
1509 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1510 error_msg = mono_dl_symbol (module, import, &addr);
1512 char *mangled_name = NULL, *mangled_name2 = NULL;
1515 int mangle_param_count;
1521 * Search using a variety of mangled names
1523 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1524 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1525 gboolean need_param_count = FALSE;
1527 if (mangle_stdcall > 0)
1528 need_param_count = TRUE;
1530 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1535 mangled_name = (char*)import;
1536 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1537 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1538 /* Try the mangled name first */
1539 if (mangle_charset == 0)
1540 mangled_name = g_strconcat (import, "W", NULL);
1542 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1544 if (mangle_charset == 0)
1545 mangled_name = g_strconcat (import, "W", NULL);
1547 /* Try the mangled name last */
1548 if (mangle_charset == 1)
1549 mangled_name = g_strconcat (import, "A", NULL);
1552 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1554 /* Try the mangled name last */
1555 if (mangle_charset == 1)
1556 mangled_name = g_strconcat (import, "A", NULL);
1561 if (mangle_param_count == 0)
1562 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1564 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1565 param_count = mangle_param_count;
1567 /* Try the stdcall mangled name */
1569 * gcc under windows creates mangled names without the underscore, but MS.NET
1570 * doesn't support it, so we doesn't support it either.
1572 if (mangle_stdcall == 1)
1573 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1575 mangled_name2 = mangled_name;
1577 mangled_name2 = mangled_name;
1580 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1581 "Probing '%s'.", mangled_name2);
1583 error_msg = mono_dl_symbol (module, mangled_name2, &addr);
1586 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1587 "Found as '%s'.", mangled_name2);
1589 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1590 "Could not find '%s' due to '%s'.", mangled_name2, error_msg);
1595 if (mangled_name != mangled_name2)
1596 g_free (mangled_name2);
1597 if (mangled_name != import)
1598 g_free (mangled_name);
1607 *exc_class = "EntryPointNotFoundException";
1612 piinfo->addr = addr;
1617 * LOCKING: assumes the loader lock to be taken.
1620 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1621 MonoGenericContext *context, gboolean *used_context, MonoError *error)
1624 int table = mono_metadata_token_table (token);
1625 int idx = mono_metadata_token_index (token);
1626 MonoTableInfo *tables = image->tables;
1627 MonoGenericContainer *generic_container = NULL, *container = NULL;
1628 const char *sig = NULL;
1629 guint32 cols [MONO_TYPEDEF_SIZE];
1633 if (image_is_dynamic (image)) {
1634 MonoClass *handle_class;
1636 result = (MonoMethod *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context, error);
1637 mono_error_assert_ok (error);
1639 // This checks the memberref type as well
1640 if (result && handle_class != mono_defaults.methodhandle_class) {
1641 mono_error_set_bad_image (error, image, "Bad method token 0x%08x on dynamic image", token);
1647 if (table != MONO_TABLE_METHOD) {
1648 if (table == MONO_TABLE_METHODSPEC) {
1649 if (used_context) *used_context = TRUE;
1650 return method_from_methodspec (image, context, idx, error);
1652 if (table != MONO_TABLE_MEMBERREF) {
1653 mono_error_set_bad_image (error, image, "Bad method token 0x%08x.", token);
1656 return method_from_memberref (image, idx, context, used_context, error);
1659 if (used_context) *used_context = FALSE;
1661 if (idx > image->tables [MONO_TABLE_METHOD].rows) {
1662 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (out of bounds).", token);
1667 guint32 type = mono_metadata_typedef_from_method (image, token);
1669 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (could not find corresponding typedef).", token);
1672 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
1677 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1679 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1680 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1681 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethodPInvoke));
1683 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethod));
1684 InterlockedAdd (&methods_size, sizeof (MonoMethod));
1687 InterlockedIncrement (&mono_stats.method_count);
1690 result->klass = klass;
1691 result->flags = cols [2];
1692 result->iflags = cols [1];
1693 result->token = token;
1694 result->name = mono_metadata_string_heap (image, cols [3]);
1696 if (!sig) /* already taken from the methodref */
1697 sig = mono_metadata_blob_heap (image, cols [4]);
1698 /* size = */ mono_metadata_decode_blob_size (sig, &sig);
1700 container = mono_class_try_get_generic_container (klass);
1703 * load_generic_params does a binary search so only call it if the method
1707 generic_container = mono_metadata_load_generic_params (image, token, container);
1709 if (generic_container) {
1710 result->is_generic = TRUE;
1711 generic_container->owner.method = result;
1712 generic_container->is_anonymous = FALSE; // Method is now known, container is no longer anonymous
1713 /*FIXME put this before the image alloc*/
1714 if (!mono_metadata_load_generic_param_constraints_checked (image, token, generic_container, error))
1717 container = generic_container;
1720 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1721 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1722 result->string_ctor = 1;
1723 } else if (cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1724 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1727 /* IJW is P/Invoke with a predefined function pointer. */
1728 if (image->is_module_handle && (cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
1729 piinfo->addr = mono_image_rva_map (image, cols [0]);
1730 g_assert (piinfo->addr);
1733 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1734 /* Native methods can have no map. */
1735 if (piinfo->implmap_idx)
1736 piinfo->piflags = mono_metadata_decode_row_col (&tables [MONO_TABLE_IMPLMAP], piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1739 if (generic_container)
1740 mono_method_set_generic_container (result, generic_container);
1749 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1752 MonoMethod *result = mono_get_method_checked (image, token, klass, NULL, &error);
1753 mono_error_cleanup (&error);
1758 * mono_get_method_full:
1761 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1762 MonoGenericContext *context)
1765 MonoMethod *result = mono_get_method_checked (image, token, klass, context, &error);
1766 mono_error_cleanup (&error);
1771 mono_get_method_checked (MonoImage *image, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error)
1773 MonoMethod *result = NULL;
1774 gboolean used_context = FALSE;
1776 /* We do everything inside the lock to prevent creation races */
1780 mono_image_lock (image);
1782 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD) {
1783 if (!image->method_cache)
1784 image->method_cache = g_hash_table_new (NULL, NULL);
1785 result = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1786 } else if (!image_is_dynamic (image)) {
1787 if (!image->methodref_cache)
1788 image->methodref_cache = g_hash_table_new (NULL, NULL);
1789 result = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1791 mono_image_unlock (image);
1797 result = mono_get_method_from_token (image, token, klass, context, &used_context, error);
1801 mono_image_lock (image);
1802 if (!used_context && !result->is_inflated) {
1803 MonoMethod *result2 = NULL;
1805 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1806 result2 = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
1807 else if (!image_is_dynamic (image))
1808 result2 = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
1811 mono_image_unlock (image);
1815 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
1816 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)), result);
1817 else if (!image_is_dynamic (image))
1818 g_hash_table_insert (image->methodref_cache, GINT_TO_POINTER (token), result);
1821 mono_image_unlock (image);
1827 get_method_constrained (MonoImage *image, MonoMethod *method, MonoClass *constrained_class, MonoGenericContext *context, MonoError *error)
1830 MonoClass *ic = NULL;
1831 MonoGenericContext *method_context = NULL;
1832 MonoMethodSignature *sig, *original_sig;
1836 mono_class_init (constrained_class);
1837 original_sig = sig = mono_method_signature_checked (method, error);
1842 if (method->is_inflated && sig->generic_param_count) {
1843 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1844 sig = mono_method_signature_checked (imethod->declaring, error); /*We assume that if the inflated method signature is valid, the declaring method is too*/
1847 method_context = mono_method_get_context (method);
1851 * We must inflate the signature with the class instantiation to work on
1852 * cases where a class inherit from a generic type and the override replaces
1853 * any type argument which a concrete type. See #325283.
1855 if (method_context->class_inst) {
1856 MonoGenericContext ctx;
1857 ctx.method_inst = NULL;
1858 ctx.class_inst = method_context->class_inst;
1859 /*Fixme, property propagate this error*/
1860 sig = inflate_generic_signature_checked (method->klass->image, sig, &ctx, error);
1866 if ((constrained_class != method->klass) && (MONO_CLASS_IS_INTERFACE (method->klass)))
1869 result = find_method (constrained_class, ic, method->name, sig, constrained_class, error);
1870 if (sig != original_sig)
1871 mono_metadata_free_inflated_signature (sig);
1876 if (method_context) {
1877 result = mono_class_inflate_generic_method_checked (result, method_context, error);
1886 mono_get_method_constrained_with_method (MonoImage *image, MonoMethod *method, MonoClass *constrained_class,
1887 MonoGenericContext *context, MonoError *error)
1891 return get_method_constrained (image, method, constrained_class, context, error);
1895 * mono_get_method_constrained:
1896 * This is used when JITing the <code>constrained.</code> opcode.
1897 * \returns The contrained method, which has been inflated
1898 * as the function return value; and the original CIL-stream method as
1899 * declared in \p cil_method. The latter is used for verification.
1902 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1903 MonoGenericContext *context, MonoMethod **cil_method)
1906 MonoMethod *result = mono_get_method_constrained_checked (image, token, constrained_class, context, cil_method, &error);
1907 mono_error_cleanup (&error);
1912 mono_get_method_constrained_checked (MonoImage *image, guint32 token, MonoClass *constrained_class, MonoGenericContext *context, MonoMethod **cil_method, MonoError *error)
1916 *cil_method = mono_get_method_checked (image, token, NULL, context, error);
1920 return get_method_constrained (image, *cil_method, constrained_class, context, error);
1927 mono_free_method (MonoMethod *method)
1929 MONO_PROFILER_RAISE (method_free, (method));
1931 /* FIXME: This hack will go away when the profiler will support freeing methods */
1932 if (G_UNLIKELY (mono_profiler_installed ()))
1935 if (method->signature) {
1937 * FIXME: This causes crashes because the types inside signatures and
1938 * locals are shared.
1940 /* mono_metadata_free_method_signature (method->signature); */
1941 /* g_free (method->signature); */
1944 if (method_is_dynamic (method)) {
1945 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1948 mono_marshal_free_dynamic_wrappers (method);
1950 mono_image_property_remove (method->klass->image, method);
1952 g_free ((char*)method->name);
1954 g_free ((char*)mw->header->code);
1955 for (i = 0; i < mw->header->num_locals; ++i)
1956 g_free (mw->header->locals [i]);
1957 g_free (mw->header->clauses);
1958 g_free (mw->header);
1960 g_free (mw->method_data);
1961 g_free (method->signature);
1967 * mono_method_get_param_names:
1970 mono_method_get_param_names (MonoMethod *method, const char **names)
1974 MonoTableInfo *methodt;
1975 MonoTableInfo *paramt;
1976 MonoMethodSignature *signature;
1979 if (method->is_inflated)
1980 method = ((MonoMethodInflated *) method)->declaring;
1982 signature = mono_method_signature (method);
1983 /*FIXME this check is somewhat redundant since the caller usally will have to get the signature to figure out the
1984 number of arguments and allocate a properly sized array. */
1985 if (signature == NULL)
1988 if (!signature->param_count)
1991 for (i = 0; i < signature->param_count; ++i)
1994 klass = method->klass;
1998 mono_class_init (klass);
2000 if (image_is_dynamic (klass->image)) {
2001 MonoReflectionMethodAux *method_aux =
2002 (MonoReflectionMethodAux *)g_hash_table_lookup (
2003 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2004 if (method_aux && method_aux->param_names) {
2005 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
2006 if (method_aux->param_names [i + 1])
2007 names [i] = method_aux->param_names [i + 1];
2012 if (method->wrapper_type) {
2013 char **pnames = NULL;
2015 mono_image_lock (klass->image);
2016 if (klass->image->wrapper_param_names)
2017 pnames = (char **)g_hash_table_lookup (klass->image->wrapper_param_names, method);
2018 mono_image_unlock (klass->image);
2021 for (i = 0; i < signature->param_count; ++i)
2022 names [i] = pnames [i];
2027 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2028 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2029 idx = mono_method_get_index (method);
2031 guint32 cols [MONO_PARAM_SIZE];
2034 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2036 if (idx < methodt->rows)
2037 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2039 lastp = paramt->rows + 1;
2040 for (i = param_index; i < lastp; ++i) {
2041 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2042 if (cols [MONO_PARAM_SEQUENCE] && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) /* skip return param spec and bounds check*/
2043 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
2049 * mono_method_get_param_token:
2052 mono_method_get_param_token (MonoMethod *method, int index)
2054 MonoClass *klass = method->klass;
2055 MonoTableInfo *methodt;
2058 mono_class_init (klass);
2060 if (image_is_dynamic (klass->image))
2061 g_assert_not_reached ();
2063 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2064 idx = mono_method_get_index (method);
2066 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2070 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
2072 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
2079 * mono_method_get_marshal_info:
2082 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
2085 MonoClass *klass = method->klass;
2086 MonoTableInfo *methodt;
2087 MonoTableInfo *paramt;
2088 MonoMethodSignature *signature;
2091 signature = mono_method_signature (method);
2092 g_assert (signature); /*FIXME there is no way to signal error from this function*/
2094 for (i = 0; i < signature->param_count + 1; ++i)
2097 if (image_is_dynamic (method->klass->image)) {
2098 MonoReflectionMethodAux *method_aux =
2099 (MonoReflectionMethodAux *)g_hash_table_lookup (
2100 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2101 if (method_aux && method_aux->param_marshall) {
2102 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2103 for (i = 0; i < signature->param_count + 1; ++i)
2104 if (dyn_specs [i]) {
2105 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
2106 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
2107 mspecs [i]->data.custom_data.custom_name = g_strdup (dyn_specs [i]->data.custom_data.custom_name);
2108 mspecs [i]->data.custom_data.cookie = g_strdup (dyn_specs [i]->data.custom_data.cookie);
2114 mono_class_init (klass);
2116 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2117 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2118 idx = mono_method_get_index (method);
2120 guint32 cols [MONO_PARAM_SIZE];
2121 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2123 if (idx < methodt->rows)
2124 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2126 lastp = paramt->rows + 1;
2128 for (i = param_index; i < lastp; ++i) {
2129 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2131 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) {
2133 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
2135 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
2144 * mono_method_has_marshal_info:
2147 mono_method_has_marshal_info (MonoMethod *method)
2150 MonoClass *klass = method->klass;
2151 MonoTableInfo *methodt;
2152 MonoTableInfo *paramt;
2155 if (image_is_dynamic (method->klass->image)) {
2156 MonoReflectionMethodAux *method_aux =
2157 (MonoReflectionMethodAux *)g_hash_table_lookup (
2158 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2159 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2161 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
2168 mono_class_init (klass);
2170 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2171 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2172 idx = mono_method_get_index (method);
2174 guint32 cols [MONO_PARAM_SIZE];
2175 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2177 if (idx + 1 < methodt->rows)
2178 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2180 lastp = paramt->rows + 1;
2182 for (i = param_index; i < lastp; ++i) {
2183 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2185 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
2194 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
2197 g_assert (method != NULL);
2198 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
2200 data = (void **)((MonoMethodWrapper *)method)->method_data;
2201 g_assert (data != NULL);
2202 g_assert (id <= GPOINTER_TO_UINT (*data));
2209 } StackWalkUserData;
2212 stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2214 StackWalkUserData *d = (StackWalkUserData *)data;
2216 switch (frame->type) {
2217 case FRAME_TYPE_DEBUGGER_INVOKE:
2218 case FRAME_TYPE_MANAGED_TO_NATIVE:
2219 case FRAME_TYPE_TRAMPOLINE:
2221 case FRAME_TYPE_MANAGED:
2222 g_assert (frame->ji);
2223 return d->func (frame->actual_method, frame->native_offset, frame->il_offset, frame->managed, d->user_data);
2226 g_assert_not_reached ();
2232 mono_stack_walk (MonoStackWalk func, gpointer user_data)
2234 StackWalkUserData ud = { func, user_data };
2235 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_LOOKUP_ALL, &ud);
2239 * mono_stack_walk_no_il:
2242 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
2244 StackWalkUserData ud = { func, user_data };
2245 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_DEFAULT, &ud);
2249 MonoStackWalkAsyncSafe func;
2251 } AsyncStackWalkUserData;
2255 async_stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2257 AsyncStackWalkUserData *d = (AsyncStackWalkUserData *)data;
2259 switch (frame->type) {
2260 case FRAME_TYPE_DEBUGGER_INVOKE:
2261 case FRAME_TYPE_MANAGED_TO_NATIVE:
2262 case FRAME_TYPE_TRAMPOLINE:
2264 case FRAME_TYPE_MANAGED:
2267 if (frame->ji->async) {
2268 return d->func (NULL, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2270 return d->func (frame->actual_method, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2274 g_assert_not_reached ();
2281 * mono_stack_walk_async_safe:
2282 * Async safe version callable from signal handlers.
2285 mono_stack_walk_async_safe (MonoStackWalkAsyncSafe func, void *initial_sig_context, void *user_data)
2288 AsyncStackWalkUserData ud = { func, user_data };
2290 mono_sigctx_to_monoctx (initial_sig_context, &ctx);
2291 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (async_stack_walk_adapter, &ctx, MONO_UNWIND_SIGNAL_SAFE, &ud);
2295 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
2297 MonoMethod **dest = (MonoMethod **)data;
2299 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
2305 * mono_method_get_last_managed:
2308 mono_method_get_last_managed (void)
2310 MonoMethod *m = NULL;
2311 mono_stack_walk_no_il (last_managed, &m);
2315 static gboolean loader_lock_track_ownership = FALSE;
2320 * See \c docs/thread-safety.txt for the locking strategy.
2323 mono_loader_lock (void)
2325 mono_locks_coop_acquire (&loader_mutex, LoaderLock);
2326 if (G_UNLIKELY (loader_lock_track_ownership)) {
2327 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));
2332 * mono_loader_unlock:
2335 mono_loader_unlock (void)
2337 mono_locks_coop_release (&loader_mutex, LoaderLock);
2338 if (G_UNLIKELY (loader_lock_track_ownership)) {
2339 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));
2344 * mono_loader_lock_track_ownership:
2346 * Set whenever the runtime should track ownership of the loader lock. If set to TRUE,
2347 * the mono_loader_lock_is_owned_by_self () can be called to query whenever the current
2348 * thread owns the loader lock.
2351 mono_loader_lock_track_ownership (gboolean track)
2353 loader_lock_track_ownership = track;
2357 * mono_loader_lock_is_owned_by_self:
2359 * Return whenever the current thread owns the loader lock.
2360 * This is useful to avoid blocking operations while holding the loader lock.
2363 mono_loader_lock_is_owned_by_self (void)
2365 g_assert (loader_lock_track_ownership);
2367 return GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) > 0;
2371 * mono_loader_lock_if_inited:
2373 * Acquire the loader lock if it has been initialized, no-op otherwise. This can
2374 * be used in runtime initialization code which can be executed before mono_loader_init ().
2377 mono_loader_lock_if_inited (void)
2379 if (loader_lock_inited)
2380 mono_loader_lock ();
2384 mono_loader_unlock_if_inited (void)
2386 if (loader_lock_inited)
2387 mono_loader_unlock ();
2391 * mono_method_signature_checked:
2393 * Return the signature of the method M. On failure, returns NULL, and ERR is set.
2395 MonoMethodSignature*
2396 mono_method_signature_checked (MonoMethod *m, MonoError *error)
2401 gboolean can_cache_signature;
2402 MonoGenericContainer *container;
2403 MonoMethodSignature *signature = NULL, *sig2;
2406 /* We need memory barriers below because of the double-checked locking pattern */
2411 return m->signature;
2413 img = m->klass->image;
2415 if (m->is_inflated) {
2416 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
2417 /* the lock is recursive */
2418 signature = mono_method_signature (imethod->declaring);
2419 signature = inflate_generic_signature_checked (imethod->declaring->klass->image, signature, mono_method_get_context (m), error);
2420 if (!mono_error_ok (error))
2423 InterlockedAdd (&inflated_signatures_size, mono_metadata_signature_size (signature));
2425 mono_image_lock (img);
2427 mono_memory_barrier ();
2429 m->signature = signature;
2431 mono_image_unlock (img);
2433 return m->signature;
2436 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
2437 idx = mono_metadata_token_index (m->token);
2439 sig = mono_metadata_blob_heap (img, sig_offset = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
2441 g_assert (!mono_class_is_ginst (m->klass));
2442 container = mono_method_get_generic_container (m);
2444 container = mono_class_try_get_generic_container (m->klass);
2446 /* Generic signatures depend on the container so they cannot be cached */
2447 /* icall/pinvoke signatures cannot be cached cause we modify them below */
2448 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
2450 /* If the method has parameter attributes, that can modify the signature */
2451 if (mono_metadata_method_has_param_attrs (img, idx))
2452 can_cache_signature = FALSE;
2454 if (can_cache_signature) {
2455 mono_image_lock (img);
2456 signature = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2457 mono_image_unlock (img);
2461 const char *sig_body;
2462 /*TODO we should cache the failure result somewhere*/
2463 if (!mono_verifier_verify_method_signature (img, sig_offset, error))
2466 /* size = */ mono_metadata_decode_blob_size (sig, &sig_body);
2468 signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL, error);
2472 if (can_cache_signature) {
2473 mono_image_lock (img);
2474 sig2 = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2476 g_hash_table_insert (img->method_signatures, (gpointer)sig, signature);
2477 mono_image_unlock (img);
2480 InterlockedAdd (&signatures_size, mono_metadata_signature_size (signature));
2483 /* Verify metadata consistency */
2484 if (signature->generic_param_count) {
2485 if (!container || !container->is_method) {
2486 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);
2489 if (container->type_argc != signature->generic_param_count) {
2490 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);
2493 } else if (container && container->is_method && container->type_argc) {
2494 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);
2497 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
2498 signature->pinvoke = 1;
2501 * On Windows the default pinvoke calling convention is STDCALL but
2502 * we need CDECL since this is actually an icall.
2504 signature->call_convention = MONO_CALL_C;
2506 } else if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2507 MonoCallConvention conv = (MonoCallConvention)0;
2508 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
2509 signature->pinvoke = 1;
2511 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
2512 case 0: /* no call conv, so using default */
2513 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
2514 conv = MONO_CALL_DEFAULT;
2516 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
2519 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
2520 conv = MONO_CALL_STDCALL;
2522 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
2523 conv = MONO_CALL_THISCALL;
2525 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
2526 conv = MONO_CALL_FASTCALL;
2528 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
2529 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
2531 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);
2534 signature->call_convention = conv;
2537 mono_image_lock (img);
2539 mono_memory_barrier ();
2541 m->signature = signature;
2543 mono_image_unlock (img);
2545 return m->signature;
2549 * mono_method_signature:
2550 * \returns the signature of the method \p m. On failure, returns NULL.
2552 MonoMethodSignature*
2553 mono_method_signature (MonoMethod *m)
2556 MonoMethodSignature *sig;
2558 sig = mono_method_signature_checked (m, &error);
2560 char *type_name = mono_type_get_full_name (m->klass);
2561 g_warning ("Could not load signature of %s:%s due to: %s", type_name, m->name, mono_error_get_message (&error));
2563 mono_error_cleanup (&error);
2570 * mono_method_get_name:
2573 mono_method_get_name (MonoMethod *method)
2575 return method->name;
2579 * mono_method_get_class:
2582 mono_method_get_class (MonoMethod *method)
2584 return method->klass;
2588 * mono_method_get_token:
2591 mono_method_get_token (MonoMethod *method)
2593 return method->token;
2597 mono_method_get_header_checked (MonoMethod *method, MonoError *error)
2603 MonoGenericContainer *container;
2606 img = method->klass->image;
2608 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)) {
2609 mono_error_set_bad_image (error, img, "Method has no body");
2613 if (method->is_inflated) {
2614 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2615 MonoMethodHeader *header, *iheader;
2617 header = mono_method_get_header_checked (imethod->declaring, error);
2621 iheader = inflate_generic_header (header, mono_method_get_context (method), error);
2622 mono_metadata_free_mh (header);
2630 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
2631 MonoMethodWrapper *mw = (MonoMethodWrapper *)method;
2632 g_assert (mw->header);
2637 * We don't need locks here: the new header is allocated from malloc memory
2638 * and is not stored anywhere in the runtime, the user needs to free it.
2640 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
2641 idx = mono_metadata_token_index (method->token);
2642 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
2644 if (!mono_verifier_verify_method_header (img, rva, NULL)) {
2645 mono_error_set_bad_image (error, img, "Invalid method header, failed verification");
2649 loc = mono_image_rva_map (img, rva);
2651 mono_error_set_bad_image (error, img, "Method has zero rva");
2656 * When parsing the types of local variables, we must pass any container available
2657 * to ensure that both VAR and MVAR will get the right owner.
2659 container = mono_method_get_generic_container (method);
2661 container = mono_class_try_get_generic_container (method->klass);
2662 return mono_metadata_parse_mh_full (img, container, (const char *)loc, error);
2666 * mono_method_get_header:
2669 mono_method_get_header (MonoMethod *method)
2672 MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
2673 mono_error_cleanup (&error);
2679 * mono_method_get_flags:
2682 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
2685 *iflags = method->iflags;
2686 return method->flags;
2690 * mono_method_get_index:
2691 * Find the method index in the metadata \c MethodDef table.
2694 mono_method_get_index (MonoMethod *method)
2696 MonoClass *klass = method->klass;
2700 /* constructed array methods are not in the MethodDef table */
2704 return mono_metadata_token_index (method->token);
2706 mono_class_setup_methods (klass);
2707 if (mono_class_has_failure (klass))
2709 int first_idx = mono_class_get_first_method_idx (klass);
2710 int mcount = mono_class_get_method_count (klass);
2711 for (i = 0; i < mcount; ++i) {
2712 if (method == klass->methods [i]) {
2713 if (klass->image->uncompressed_metadata)
2714 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, first_idx + i + 1);
2716 return first_idx + i + 1;