2 * loader.c: Image Loader
5 * Paolo Molaro (lupus@ximian.com)
6 * Miguel de Icaza (miguel@ximian.com)
7 * Patrik Torstensson (patrik.torstensson@labs2.com)
9 * (C) 2001 Ximian, Inc.
10 * Copyright (C) 2002-2006 Novell, Inc.
12 * This file is used by the interpreter and the JIT engine to locate
13 * assemblies. Used to load AssemblyRef and later to resolve various
17 * This should keep track of the assembly versions that we are loading.
25 #include <mono/metadata/metadata.h>
26 #include <mono/metadata/image.h>
27 #include <mono/metadata/assembly.h>
28 #include <mono/metadata/tokentype.h>
29 #include <mono/metadata/tabledefs.h>
30 #include <mono/metadata/metadata-internals.h>
31 #include <mono/metadata/loader.h>
32 #include <mono/metadata/class-internals.h>
33 #include <mono/metadata/debug-helpers.h>
34 #include <mono/metadata/reflection.h>
35 #include <mono/metadata/profiler.h>
36 #include <mono/metadata/profiler-private.h>
37 #include <mono/metadata/exception.h>
38 #include <mono/utils/mono-logger.h>
39 #include <mono/utils/mono-dl.h>
40 #include <mono/utils/mono-membar.h>
42 MonoDefaults mono_defaults;
45 * This lock protects the hash tables inside MonoImage used by the metadata
46 * loading functions in class.c and loader.c.
48 static CRITICAL_SECTION loader_mutex;
52 * This TLS variable contains the last type load error encountered by the loader.
54 guint32 loader_error_thread_id;
59 InitializeCriticalSection (&loader_mutex);
61 loader_error_thread_id = TlsAlloc ();
65 mono_loader_cleanup (void)
67 TlsFree (loader_error_thread_id);
69 /*DeleteCriticalSection (&loader_mutex);*/
73 * Handling of type load errors should be done as follows:
75 * If something could not be loaded, the loader should call one of the
76 * mono_loader_set_error_XXX functions ()
77 * with the appropriate arguments, then return NULL to report the failure. The error
78 * should be propagated until it reaches code which can throw managed exceptions. At that
79 * point, an exception should be thrown based on the information returned by
80 * mono_loader_get_last_error (). Then the error should be cleared by calling
81 * mono_loader_clear_error ().
85 set_loader_error (MonoLoaderError *error)
87 TlsSetValue (loader_error_thread_id, error);
91 * mono_loader_set_error_assembly_load:
93 * Set the loader error for this thread.
96 mono_loader_set_error_assembly_load (const char *assembly_name, gboolean ref_only)
98 MonoLoaderError *error;
100 if (mono_loader_get_last_error ())
103 error = g_new0 (MonoLoaderError, 1);
104 error->exception_type = MONO_EXCEPTION_FILE_NOT_FOUND;
105 error->assembly_name = g_strdup (assembly_name);
106 error->ref_only = ref_only;
109 * This is not strictly needed, but some (most) of the loader code still
110 * can't deal with load errors, and this message is more helpful than an
114 g_warning ("Cannot resolve dependency to assembly '%s' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.", assembly_name);
116 g_warning ("Could not load file or assembly '%s' or one of its dependencies.", assembly_name);
118 set_loader_error (error);
122 * mono_loader_set_error_type_load:
124 * Set the loader error for this thread.
127 mono_loader_set_error_type_load (const char *class_name, const char *assembly_name)
129 MonoLoaderError *error;
131 if (mono_loader_get_last_error ())
134 error = g_new0 (MonoLoaderError, 1);
135 error->exception_type = MONO_EXCEPTION_TYPE_LOAD;
136 error->class_name = g_strdup (class_name);
137 error->assembly_name = g_strdup (assembly_name);
140 * This is not strictly needed, but some (most) of the loader code still
141 * can't deal with load errors, and this message is more helpful than an
144 g_warning ("The class %s could not be loaded, used in %s", class_name, assembly_name);
146 set_loader_error (error);
150 * mono_loader_set_error_method_load:
152 * Set the loader error for this thread. MEMBER_NAME should point to a string
156 mono_loader_set_error_method_load (const char *class_name, const char *member_name)
158 MonoLoaderError *error;
160 /* FIXME: Store the signature as well */
161 if (mono_loader_get_last_error ())
164 error = g_new0 (MonoLoaderError, 1);
165 error->exception_type = MONO_EXCEPTION_MISSING_METHOD;
166 error->class_name = g_strdup (class_name);
167 error->member_name = member_name;
169 set_loader_error (error);
173 * mono_loader_set_error_field_load:
175 * Set the loader error for this thread. MEMBER_NAME should point to a string
179 mono_loader_set_error_field_load (MonoClass *klass, const char *member_name)
181 MonoLoaderError *error;
183 /* FIXME: Store the signature as well */
184 if (mono_loader_get_last_error ())
187 error = g_new0 (MonoLoaderError, 1);
188 error->exception_type = MONO_EXCEPTION_MISSING_FIELD;
189 error->klass = klass;
190 error->member_name = member_name;
192 set_loader_error (error);
196 * mono_loader_set_error_bad_image:
198 * Set the loader error for this thread.
201 mono_loader_set_error_bad_image (char *msg)
203 MonoLoaderError *error;
205 if (mono_loader_get_last_error ())
208 error = g_new0 (MonoLoaderError, 1);
209 error->exception_type = MONO_EXCEPTION_BAD_IMAGE;
212 set_loader_error (error);
217 * mono_loader_get_last_error:
219 * Returns information about the last type load exception encountered by the loader, or
220 * NULL. After use, the exception should be cleared by calling mono_loader_clear_error.
223 mono_loader_get_last_error (void)
225 return (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
229 * mono_loader_clear_error:
231 * Disposes any loader error messages on this thread
234 mono_loader_clear_error (void)
236 MonoLoaderError *ex = (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
239 g_free (ex->class_name);
240 g_free (ex->assembly_name);
244 TlsSetValue (loader_error_thread_id, NULL);
249 * mono_loader_error_prepare_exception:
250 * @error: The MonoLoaderError to turn into an exception
252 * This turns a MonoLoaderError into an exception that can be thrown
253 * and resets the Mono Loader Error state during this process.
257 mono_loader_error_prepare_exception (MonoLoaderError *error)
259 MonoException *ex = NULL;
261 switch (error->exception_type) {
262 case MONO_EXCEPTION_TYPE_LOAD: {
263 char *cname = g_strdup (error->class_name);
264 char *aname = g_strdup (error->assembly_name);
265 MonoString *class_name;
267 mono_loader_clear_error ();
269 class_name = mono_string_new (mono_domain_get (), cname);
271 ex = mono_get_exception_type_load (class_name, aname);
276 case MONO_EXCEPTION_MISSING_METHOD: {
277 char *cname = g_strdup (error->class_name);
278 char *aname = g_strdup (error->member_name);
280 mono_loader_clear_error ();
281 ex = mono_get_exception_missing_method (cname, aname);
287 case MONO_EXCEPTION_MISSING_FIELD: {
288 char *cnspace = g_strdup (*error->klass->name_space ? error->klass->name_space : "");
289 char *cname = g_strdup (error->klass->name);
290 char *cmembername = g_strdup (error->member_name);
293 mono_loader_clear_error ();
294 class_name = g_strdup_printf ("%s%s%s", cnspace, cnspace ? "." : "", cname);
296 ex = mono_get_exception_missing_field (class_name, cmembername);
299 g_free (cmembername);
304 case MONO_EXCEPTION_FILE_NOT_FOUND: {
309 msg = g_strdup_printf ("Cannot resolve dependency to assembly '%s' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.", error->assembly_name);
311 msg = g_strdup_printf ("Could not load file or assembly '%s' or one of its dependencies.", error->assembly_name);
312 filename = g_strdup (error->assembly_name);
313 /* Has to call this before calling anything which might call mono_class_init () */
314 mono_loader_clear_error ();
315 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), filename));
321 case MONO_EXCEPTION_BAD_IMAGE: {
322 char *msg = g_strdup (error->msg);
323 mono_loader_clear_error ();
324 ex = mono_get_exception_bad_image_format (msg);
330 g_assert_not_reached ();
336 static MonoClassField*
337 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
338 MonoGenericContext *context)
341 MonoClassField *field;
342 MonoTableInfo *tables = image->tables;
344 guint32 nindex, class;
347 guint32 idx = mono_metadata_token_index (token);
349 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
350 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
351 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
353 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
355 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
356 mono_metadata_decode_blob_size (ptr, &ptr);
357 /* we may want to check the signature here... */
360 case MONO_MEMBERREF_PARENT_TYPEDEF:
361 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
363 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | nindex);
364 g_warning ("Missing field %s in class %s (typedef index %d)", fname, name, nindex);
365 mono_loader_set_error_type_load (name, image->assembly_name);
369 mono_class_init (klass);
372 field = mono_class_get_field_from_name (klass, fname);
374 case MONO_MEMBERREF_PARENT_TYPEREF:
375 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
377 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
378 g_warning ("missing field %s in class %s (typeref index %d)", fname, name, nindex);
379 mono_loader_set_error_type_load (name, image->assembly_name);
383 mono_class_init (klass);
386 field = mono_class_get_field_from_name (klass, fname);
388 case MONO_MEMBERREF_PARENT_TYPESPEC: {
389 /*guint32 bcols [MONO_TYPESPEC_SIZE];
393 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
394 bcols, MONO_TYPESPEC_SIZE);
395 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
396 len = mono_metadata_decode_value (ptr, &ptr);
397 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
399 klass = mono_class_from_mono_type (type);
400 mono_class_init (klass);
401 g_print ("type in sig: %s\n", klass->name);*/
402 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
403 //FIXME can't klass be null?
404 mono_class_init (klass);
407 field = mono_class_get_field_from_name (klass, fname);
411 g_warning ("field load from %x", class);
416 mono_loader_set_error_field_load (klass, fname);
422 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
423 MonoGenericContext *context)
427 MonoClassField *field;
429 if (image->dynamic) {
430 MonoClassField *result;
431 MonoClass *handle_class;
434 result = mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context);
435 // This checks the memberref type as well
436 if (result && handle_class != mono_defaults.fieldhandle_class) {
437 mono_loader_set_error_bad_image (g_strdup ("Bad field token."));
440 *retklass = result->parent;
445 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
446 *retklass = field->parent;
447 mono_loader_unlock ();
450 mono_loader_unlock ();
452 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
453 field = field_from_memberref (image, token, retklass, context);
455 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
458 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
464 field = mono_class_get_field (k, token);
468 if (field && !field->parent->generic_class && !field->parent->generic_container)
469 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
470 mono_loader_unlock ();
475 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
479 if (sig1->hasthis != sig2->hasthis ||
480 sig1->sentinelpos != sig2->sentinelpos)
483 for (i = 0; i < sig1->sentinelpos; i++) {
484 MonoType *p1 = sig1->params[i];
485 MonoType *p2 = sig2->params[i];
487 /*if (p1->attrs != p2->attrs)
490 if (!mono_metadata_type_equal (p1, p2))
494 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
500 find_method_in_class (MonoClass *in_class, const char *name, const char *qname, const char *fqname,
501 MonoMethodSignature *sig, MonoClass *from_class)
505 mono_class_setup_methods (in_class);
506 for (i = 0; i < in_class->method.count; ++i) {
507 MonoMethod *m = in_class->methods [i];
509 if (!((fqname && !strcmp (m->name, fqname)) ||
510 (qname && !strcmp (m->name, qname)) ||
511 (name && !strcmp (m->name, name))))
514 if (sig->call_convention == MONO_CALL_VARARG) {
515 if (mono_metadata_signature_vararg_match (sig, mono_method_signature (m)))
518 if (mono_metadata_signature_equal (sig, mono_method_signature (m)))
523 if (i < in_class->method.count) {
524 mono_class_setup_methods (from_class);
525 g_assert (from_class->method.count == in_class->method.count);
526 return from_class->methods [i];
532 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class)
535 char *qname, *fqname, *class_name;
536 gboolean is_interface;
537 MonoMethod *result = NULL;
539 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
542 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
544 qname = g_strconcat (class_name, ".", name, NULL);
545 if (ic->name_space && ic->name_space [0])
546 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
550 class_name = qname = fqname = NULL;
553 g_assert (from_class);
554 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class);
558 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
561 g_assert (from_class->interface_count == in_class->interface_count);
562 for (i = 0; i < in_class->interface_count; i++) {
563 MonoClass *in_ic = in_class->interfaces [i];
564 MonoClass *from_ic = from_class->interfaces [i];
565 char *ic_qname, *ic_fqname, *ic_class_name;
567 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
568 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
569 if (in_ic->name_space && in_ic->name_space [0])
570 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
574 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic);
575 g_free (ic_class_name);
582 in_class = in_class->parent;
583 from_class = from_class->parent;
585 g_assert (!in_class == !from_class);
588 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class);
597 static MonoMethodSignature*
598 inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context)
600 MonoMethodSignature *res;
607 res = g_malloc0 (sizeof (MonoMethodSignature) + ((gint32)sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
608 res->param_count = sig->param_count;
609 res->sentinelpos = -1;
610 res->ret = mono_class_inflate_generic_type (sig->ret, context);
611 is_open = mono_class_is_open_constructed_type (res->ret);
612 for (i = 0; i < sig->param_count; ++i) {
613 res->params [i] = mono_class_inflate_generic_type (sig->params [i], context);
615 is_open = mono_class_is_open_constructed_type (res->params [i]);
617 res->hasthis = sig->hasthis;
618 res->explicit_this = sig->explicit_this;
619 res->call_convention = sig->call_convention;
620 res->pinvoke = sig->pinvoke;
621 res->generic_param_count = sig->generic_param_count;
622 res->sentinelpos = sig->sentinelpos;
623 res->has_type_parameters = is_open;
624 res->is_inflated = 1;
628 static MonoMethodHeader*
629 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
631 MonoMethodHeader *res;
633 res = g_malloc0 (sizeof (MonoMethodHeader) + sizeof (gpointer) * header->num_locals);
634 res->code = header->code;
635 res->code_size = header->code_size;
636 res->max_stack = header->max_stack;
637 res->num_clauses = header->num_clauses;
638 res->init_locals = header->init_locals;
639 res->num_locals = header->num_locals;
640 res->clauses = header->clauses;
641 for (i = 0; i < header->num_locals; ++i)
642 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
643 if (res->num_clauses) {
644 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
645 for (i = 0; i < header->num_clauses; ++i) {
646 MonoExceptionClause *clause = &res->clauses [i];
648 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
650 t = mono_class_inflate_generic_type (&clause->data.catch_class->byval_arg, context);
651 clause->data.catch_class = mono_class_from_mono_type (t);
652 mono_metadata_free_type (t);
659 * token is the method_ref or method_def token used in a call IL instruction.
662 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
664 int table = mono_metadata_token_table (token);
665 int idx = mono_metadata_token_index (token);
666 guint32 cols [MONO_MEMBERREF_SIZE];
667 MonoMethodSignature *sig, *prev_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 (method);
674 if (table == MONO_TABLE_METHODSPEC) {
675 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
676 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
677 mono_method_signature (method));
678 g_assert (method->is_inflated);
680 return mono_method_signature (method);
683 if (method->klass->generic_class)
684 return mono_method_signature (method);
687 /* FIXME: This might be incorrect for vararg methods */
688 return mono_method_signature (method);
691 sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
692 mono_loader_unlock ();
694 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
696 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
697 mono_metadata_decode_blob_size (ptr, &ptr);
698 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
701 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
703 /* Somebody got in before us */
707 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
708 mono_loader_unlock ();
712 MonoMethodSignature *cached;
714 /* This signature is not owned by a MonoMethod, so need to cache */
715 sig = inflate_generic_signature (image, sig, context);
716 cached = mono_metadata_get_inflated_signature (sig, context);
718 mono_metadata_free_inflated_signature (sig);
726 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
728 return mono_method_get_signature_full (method, image, token, NULL);
731 /* this is only for the typespec array methods */
733 search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
736 for (i = 0; i < klass->method.count; ++i) {
737 MonoMethod *method = klass->methods [i];
738 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
745 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
746 gboolean *used_context)
748 MonoClass *klass = NULL;
749 MonoMethod *method = NULL;
750 MonoTableInfo *tables = image->tables;
752 guint32 nindex, class;
754 MonoMethodSignature *sig;
757 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
758 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
759 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
760 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
761 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
763 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
766 * Whether we actually used the `typespec_context' or not.
767 * This is used to tell our caller whether or not it's safe to insert the returned
768 * method into a cache.
771 *used_context = class == MONO_MEMBERREF_PARENT_TYPESPEC;
774 case MONO_MEMBERREF_PARENT_TYPEREF:
775 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
777 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
778 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
779 mono_loader_set_error_type_load (name, image->assembly_name);
784 case MONO_MEMBERREF_PARENT_TYPESPEC:
786 * Parse the TYPESPEC in the parent's context.
788 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context);
790 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_SPEC | nindex);
791 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
792 mono_loader_set_error_type_load (name, image->assembly_name);
797 case MONO_MEMBERREF_PARENT_TYPEDEF:
798 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
800 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | nindex);
801 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
802 mono_loader_set_error_type_load (name, image->assembly_name);
807 case MONO_MEMBERREF_PARENT_METHODDEF:
808 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
812 /* This message leaks */
813 char *message = g_strdup_printf ("Memberref parent unknown: class: %d, index %d", class, nindex);
814 mono_loader_set_error_method_load ("", message);
820 mono_class_init (klass);
822 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
823 mono_metadata_decode_blob_size (ptr, &ptr);
825 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
830 case MONO_MEMBERREF_PARENT_TYPEREF:
831 case MONO_MEMBERREF_PARENT_TYPEDEF:
832 method = find_method (klass, NULL, mname, sig, klass);
835 case MONO_MEMBERREF_PARENT_TYPESPEC: {
839 type = &klass->byval_arg;
841 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
842 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
843 method = find_method (in_class, NULL, mname, sig, klass);
847 /* we're an array and we created these methods already in klass in mono_class_init () */
848 result = search_in_array_class (klass, mname, sig);
852 g_assert_not_reached ();
856 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
857 g_assert_not_reached ();
861 char *msig = mono_signature_get_desc (sig, FALSE);
862 char * class_name = mono_type_get_name (&klass->byval_arg);
863 GString *s = g_string_new (mname);
864 if (sig->generic_param_count)
865 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
866 g_string_append_printf (s, "(%s)", msig);
868 msig = g_string_free (s, FALSE);
871 "Missing method %s::%s in assembly %s, referenced in assembly %s",
872 class_name, msig, klass->image->name, image->name);
873 mono_loader_set_error_method_load (class_name, mname);
877 mono_metadata_free_method_signature (sig);
883 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
887 MonoTableInfo *tables = image->tables;
888 MonoGenericContext new_context;
889 MonoGenericInst *inst;
891 guint32 cols [MONO_METHODSPEC_SIZE];
892 guint32 token, nindex, param_count;
894 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
895 token = cols [MONO_METHODSPEC_METHOD];
896 nindex = token >> MONO_METHODDEFORREF_BITS;
898 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
900 mono_metadata_decode_value (ptr, &ptr);
902 param_count = mono_metadata_decode_value (ptr, &ptr);
903 g_assert (param_count);
905 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr);
906 if (context && inst->is_open)
907 inst = mono_metadata_inflate_generic_inst (inst, context);
909 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
910 method = mono_get_method_full (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context);
912 method = method_from_memberref (image, nindex, context, NULL);
914 klass = method->klass;
916 if (klass->generic_class) {
917 g_assert (method->is_inflated);
918 method = ((MonoMethodInflated *) method)->declaring;
921 new_context.class_inst = klass->generic_class ? klass->generic_class->context.class_inst : NULL;
922 new_context.method_inst = inst;
924 return mono_class_inflate_generic_method_full (method, klass, &new_context);
935 static MonoDllMap *global_dll_map;
938 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
949 * we use the first entry we find that matches, since entries from
950 * the config file are prepended to the list and we document that the
953 for (; dll_map; dll_map = dll_map->next) {
954 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
955 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
957 } else if (strcmp (dll_map->dll, dll)) {
960 if (!found && dll_map->target) {
961 *rdll = dll_map->target;
963 /* we don't quit here, because we could find a full
964 * entry that matches also function and that has priority.
967 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
968 *rfunc = dll_map->target_func;
973 mono_loader_unlock ();
978 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
981 if (assembly && assembly->dll_map) {
982 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
986 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
990 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
996 entry = g_malloc0 (sizeof (MonoDllMap));
997 entry->dll = dll? g_strdup (dll): NULL;
998 entry->target = tdll? g_strdup (tdll): NULL;
999 entry->func = func? g_strdup (func): NULL;
1000 entry->target_func = tfunc? g_strdup (tfunc): NULL;
1001 entry->next = global_dll_map;
1002 global_dll_map = entry;
1004 MonoMemPool *mpool = assembly->mempool;
1005 entry = mono_mempool_alloc0 (mpool, sizeof (MonoDllMap));
1006 entry->dll = dll? mono_mempool_strdup (mpool, dll): NULL;
1007 entry->target = tdll? mono_mempool_strdup (mpool, tdll): NULL;
1008 entry->func = func? mono_mempool_strdup (mpool, func): NULL;
1009 entry->target_func = tfunc? mono_mempool_strdup (mpool, tfunc): NULL;
1010 entry->next = assembly->dll_map;
1011 assembly->dll_map = entry;
1014 mono_loader_unlock ();
1017 static GHashTable *global_module_map;
1020 cached_module_load (const char *name, int flags, char **err)
1023 mono_loader_lock ();
1024 if (!global_module_map)
1025 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1026 res = g_hash_table_lookup (global_module_map, name);
1029 mono_loader_unlock ();
1032 res = mono_dl_open (name, flags, err);
1034 g_hash_table_insert (global_module_map, g_strdup (name), res);
1035 mono_loader_unlock ();
1040 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1042 MonoImage *image = method->klass->image;
1043 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1044 MonoTableInfo *tables = image->tables;
1045 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1046 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1047 guint32 im_cols [MONO_IMPLMAP_SIZE];
1048 guint32 scope_token;
1049 const char *import = NULL;
1050 const char *orig_scope;
1051 const char *new_scope;
1053 char *full_name, *file_name;
1055 MonoDl *module = NULL;
1057 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1060 return piinfo->addr;
1062 if (method->klass->image->dynamic) {
1063 MonoReflectionMethodAux *method_aux =
1064 g_hash_table_lookup (
1065 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1069 import = method_aux->dllentry;
1070 orig_scope = method_aux->dll;
1073 if (!piinfo->implmap_idx)
1076 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1078 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1079 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1080 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1081 orig_scope = mono_metadata_string_heap (image, scope_token);
1084 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1086 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1087 "DllImport attempting to load: '%s'.", new_scope);
1094 /* we allow a special name to dlopen from the running process namespace */
1095 if (strcmp (new_scope, "__Internal") == 0)
1096 module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1099 * Try loading the module using a variety of names
1101 for (i = 0; i < 4; ++i) {
1104 /* Try the original name */
1105 file_name = g_strdup (new_scope);
1108 /* Try trimming the .dll extension */
1109 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1110 file_name = g_strdup (new_scope);
1111 file_name [strlen (new_scope) - 4] = '\0';
1117 if (strstr (new_scope, "lib") != new_scope) {
1118 file_name = g_strdup_printf ("lib%s", new_scope);
1124 #ifndef PLATFORM_WIN32
1125 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1126 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1127 !g_ascii_strcasecmp ("user32", new_scope) ||
1128 !g_ascii_strcasecmp ("kernel", new_scope)) {
1129 file_name = g_strdup ("libMonoSupportW.so");
1133 #ifndef PLATFORM_WIN32
1140 while ((full_name = mono_dl_build_path (NULL, file_name, &iter))) {
1141 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1142 "DllImport loading location: '%s'.", full_name);
1143 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1145 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1146 "DllImport error loading library: '%s'.",
1158 while ((full_name = mono_dl_build_path (".", file_name, &iter))) {
1159 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1160 "DllImport loading library: '%s'.", full_name);
1161 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1163 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1164 "DllImport error loading library '%s'.",
1175 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1176 "DllImport loading: '%s'.", file_name);
1177 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1179 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1180 "DllImport error loading library '%s'.",
1192 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1193 "DllImport unable to load library '%s'.",
1198 *exc_class = "DllNotFoundException";
1199 *exc_arg = new_scope;
1204 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1205 "Searching for '%s'.", import);
1207 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1208 error_msg = mono_dl_symbol (module, import, &piinfo->addr);
1210 char *mangled_name = NULL, *mangled_name2 = NULL;
1213 int mangle_param_count;
1214 #ifdef PLATFORM_WIN32
1219 * Search using a variety of mangled names
1221 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1222 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1223 gboolean need_param_count = FALSE;
1224 #ifdef PLATFORM_WIN32
1225 if (mangle_stdcall > 0)
1226 need_param_count = TRUE;
1228 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1233 mangled_name = (char*)import;
1234 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1235 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1236 /* Try the mangled name first */
1237 if (mangle_charset == 0)
1238 mangled_name = g_strconcat (import, "W", NULL);
1240 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1241 #ifdef PLATFORM_WIN32
1242 if (mangle_charset == 0)
1243 mangled_name = g_strconcat (import, "W", NULL);
1245 /* Try the mangled name last */
1246 if (mangle_charset == 1)
1247 mangled_name = g_strconcat (import, "A", NULL);
1250 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1252 /* Try the mangled name last */
1253 if (mangle_charset == 1)
1254 mangled_name = g_strconcat (import, "A", NULL);
1258 #ifdef PLATFORM_WIN32
1259 if (mangle_param_count == 0)
1260 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1262 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1263 param_count = mangle_param_count;
1265 /* Try the stdcall mangled name */
1267 * gcc under windows creates mangled names without the underscore, but MS.NET
1268 * doesn't support it, so we doesn't support it either.
1270 if (mangle_stdcall == 1)
1271 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1273 mangled_name2 = mangled_name;
1275 mangled_name2 = mangled_name;
1278 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1279 "Probing '%s'.", mangled_name2);
1281 error_msg = mono_dl_symbol (module, mangled_name2, &piinfo->addr);
1284 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1285 "Found as '%s'.", mangled_name2);
1287 if (mangled_name != mangled_name2)
1288 g_free (mangled_name2);
1289 if (mangled_name != import)
1290 g_free (mangled_name);
1296 if (!piinfo->addr) {
1299 *exc_class = "EntryPointNotFoundException";
1304 return piinfo->addr;
1308 * LOCKING: assumes the loader lock to be taken.
1311 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1312 MonoGenericContext *context, gboolean *used_context)
1315 int table = mono_metadata_token_table (token);
1316 int idx = mono_metadata_token_index (token);
1317 MonoTableInfo *tables = image->tables;
1318 MonoGenericContainer *generic_container = NULL, *container = NULL;
1319 const char *sig = NULL;
1321 guint32 cols [MONO_TYPEDEF_SIZE];
1323 if (image->dynamic) {
1324 MonoClass *handle_class;
1326 result = mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context);
1327 // This checks the memberref type as well
1328 if (result && handle_class != mono_defaults.methodhandle_class) {
1329 mono_loader_set_error_bad_image (g_strdup ("Bad method token."));
1335 if (table != MONO_TABLE_METHOD) {
1336 if (table == MONO_TABLE_METHODSPEC) {
1337 if (used_context) *used_context = TRUE;
1338 return method_from_methodspec (image, context, idx);
1340 if (table != MONO_TABLE_MEMBERREF)
1341 g_print("got wrong token: 0x%08x\n", token);
1342 g_assert (table == MONO_TABLE_MEMBERREF);
1343 return method_from_memberref (image, idx, context, used_context);
1346 if (used_context) *used_context = FALSE;
1348 if (idx > image->tables [MONO_TABLE_METHOD].rows) {
1349 mono_loader_set_error_bad_image (g_strdup ("Bad method token."));
1353 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1355 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1356 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
1357 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodPInvoke));
1359 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodNormal));
1361 mono_stats.method_count ++;
1364 guint32 type = mono_metadata_typedef_from_method (image, token);
1365 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
1371 result->klass = klass;
1372 result->flags = cols [2];
1373 result->iflags = cols [1];
1374 result->token = token;
1375 result->name = mono_metadata_string_heap (image, cols [3]);
1377 container = klass->generic_container;
1378 generic_container = mono_metadata_load_generic_params (image, token, container);
1379 if (generic_container) {
1380 generic_container->owner.method = result;
1382 mono_metadata_load_generic_param_constraints (image, token, generic_container);
1384 for (i = 0; i < generic_container->type_argc; i++)
1385 mono_class_from_generic_parameter (&generic_container->type_params [i], image, TRUE);
1387 container = generic_container;
1391 if (!sig) /* already taken from the methodref */
1392 sig = mono_metadata_blob_heap (image, cols [4]);
1393 size = mono_metadata_decode_blob_size (sig, &sig);
1395 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1396 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1397 result->string_ctor = 1;
1398 } else if (cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1399 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1401 #ifdef PLATFORM_WIN32
1402 /* IJW is P/Invoke with a predefined function pointer. */
1403 if (image->is_module_handle && (cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
1404 piinfo->addr = mono_image_rva_map (image, cols [0]);
1405 g_assert (piinfo->addr);
1408 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1409 /* Native methods can have no map. */
1410 if (piinfo->implmap_idx)
1411 piinfo->piflags = mono_metadata_decode_row_col (&tables [MONO_TABLE_IMPLMAP], piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1414 /* FIXME: lazyness for generics too, but how? */
1415 if (!(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
1416 !(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
1417 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
1418 gpointer loc = mono_image_rva_map (image, cols [0]);
1420 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (image, container, loc);
1423 result->generic_container = generic_container;
1429 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1431 return mono_get_method_full (image, token, klass, NULL);
1435 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1436 MonoGenericContext *context)
1439 gboolean used_context = FALSE;
1441 /* We do everything inside the lock to prevent creation races */
1443 mono_loader_lock ();
1445 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
1446 mono_loader_unlock ();
1450 result = mono_get_method_from_token (image, token, klass, context, &used_context);
1452 //printf ("GET: %s\n", mono_method_full_name (result, TRUE));
1455 g_message (G_STRLOC ": %s - %d - %d", mono_method_full_name (result, TRUE),
1456 result->is_inflated, used_context);
1460 * `used_context' specifies whether or not mono_get_method_from_token() actually
1461 * used the `context' to get the method. See bug #80969.
1464 if (!used_context && !(result && result->is_inflated))
1465 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
1467 mono_loader_unlock ();
1473 * mono_get_method_constrained:
1475 * This is used when JITing the `constrained.' opcode.
1477 * This returns two values: the contrained method, which has been inflated
1478 * as the function return value; And the original CIL-stream method as
1479 * declared in cil_method. The later is used for verification.
1482 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1483 MonoGenericContext *context, MonoMethod **cil_method)
1485 MonoMethod *method, *result;
1486 MonoClass *ic = NULL;
1487 MonoGenericContext *class_context = NULL, *method_context = NULL;
1488 MonoMethodSignature *sig;
1490 mono_loader_lock ();
1492 *cil_method = mono_get_method_from_token (image, token, NULL, context, NULL);
1494 mono_loader_unlock ();
1498 mono_class_init (constrained_class);
1499 method = *cil_method;
1500 sig = mono_method_signature (method);
1502 if (method->is_inflated && sig->generic_param_count) {
1503 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1504 sig = mono_method_signature (imethod->declaring);
1505 method_context = mono_method_get_context (method);
1508 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1511 if (constrained_class->generic_class)
1512 class_context = mono_class_get_context (constrained_class);
1514 result = find_method (constrained_class, ic, method->name, sig, constrained_class);
1516 g_warning ("Missing method %s.%s.%s in assembly %s token %x", method->klass->name_space,
1517 method->klass->name, method->name, image->name, token);
1518 mono_loader_unlock ();
1523 result = mono_class_inflate_generic_method (result, class_context);
1525 result = mono_class_inflate_generic_method (result, method_context);
1527 mono_loader_unlock ();
1532 mono_free_method (MonoMethod *method)
1534 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
1535 mono_profiler_method_free (method);
1537 /* FIXME: This hack will go away when the profiler will support freeing methods */
1538 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
1541 if (method->signature) {
1543 * FIXME: This causes crashes because the types inside signatures and
1544 * locals are shared.
1546 /* mono_metadata_free_method_signature (method->signature); */
1547 /* g_free (method->signature); */
1550 if (method->dynamic) {
1551 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1554 g_free ((char*)method->name);
1555 if (mw->method.header) {
1556 g_free ((char*)mw->method.header->code);
1557 for (i = 0; i < mw->method.header->num_locals; ++i)
1558 g_free (mw->method.header->locals [i]);
1559 g_free (mw->method.header->clauses);
1560 g_free (mw->method.header);
1562 g_free (mw->method_data);
1563 g_free (method->signature);
1569 mono_method_get_param_names (MonoMethod *method, const char **names)
1573 MonoTableInfo *methodt;
1574 MonoTableInfo *paramt;
1577 if (method->is_inflated)
1578 method = ((MonoMethodInflated *) method)->declaring;
1580 if (!mono_method_signature (method)->param_count)
1582 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1585 klass = method->klass;
1589 mono_class_init (klass);
1591 if (klass->image->dynamic) {
1592 MonoReflectionMethodAux *method_aux =
1593 g_hash_table_lookup (
1594 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1595 if (method_aux && method_aux->param_names) {
1596 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1597 if (method_aux->param_names [i + 1])
1598 names [i] = method_aux->param_names [i + 1];
1603 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1604 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1605 idx = mono_method_get_index (method);
1607 guint32 cols [MONO_PARAM_SIZE];
1610 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1612 if (idx < methodt->rows)
1613 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1615 lastp = paramt->rows + 1;
1616 for (i = param_index; i < lastp; ++i) {
1617 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1618 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1619 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1626 mono_method_get_param_token (MonoMethod *method, int index)
1628 MonoClass *klass = method->klass;
1629 MonoTableInfo *methodt;
1632 mono_class_init (klass);
1634 if (klass->image->dynamic) {
1635 g_assert_not_reached ();
1638 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1639 idx = mono_method_get_index (method);
1641 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1645 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
1647 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1654 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1657 MonoClass *klass = method->klass;
1658 MonoTableInfo *methodt;
1659 MonoTableInfo *paramt;
1662 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1665 if (method->klass->image->dynamic) {
1666 MonoReflectionMethodAux *method_aux =
1667 g_hash_table_lookup (
1668 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1669 if (method_aux && method_aux->param_marshall) {
1670 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1671 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1672 if (dyn_specs [i]) {
1673 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1674 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1680 mono_class_init (klass);
1682 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1683 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1684 idx = mono_method_get_index (method);
1686 guint32 cols [MONO_PARAM_SIZE];
1687 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1689 if (idx < methodt->rows)
1690 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1692 lastp = paramt->rows + 1;
1694 for (i = param_index; i < lastp; ++i) {
1695 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1697 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1699 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1701 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1710 mono_method_has_marshal_info (MonoMethod *method)
1713 MonoClass *klass = method->klass;
1714 MonoTableInfo *methodt;
1715 MonoTableInfo *paramt;
1718 if (method->klass->image->dynamic) {
1719 MonoReflectionMethodAux *method_aux =
1720 g_hash_table_lookup (
1721 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1722 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1724 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1731 mono_class_init (klass);
1733 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1734 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1735 idx = mono_method_get_index (method);
1737 guint32 cols [MONO_PARAM_SIZE];
1738 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1740 if (idx + 1 < methodt->rows)
1741 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1743 lastp = paramt->rows + 1;
1745 for (i = param_index; i < lastp; ++i) {
1746 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1748 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1757 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1760 g_assert (method != NULL);
1761 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1763 data = ((MonoMethodWrapper *)method)->method_data;
1764 g_assert (data != NULL);
1765 g_assert (id <= GPOINTER_TO_UINT (*data));
1770 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1771 g_error ("stack walk not installed");
1774 static MonoStackWalkImpl stack_walk = default_stack_walk;
1777 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1779 stack_walk (func, TRUE, user_data);
1783 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1785 stack_walk (func, FALSE, user_data);
1789 mono_install_stack_walk (MonoStackWalkImpl func)
1795 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1797 MonoMethod **dest = data;
1799 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1805 mono_method_get_last_managed (void)
1807 MonoMethod *m = NULL;
1808 stack_walk (last_managed, FALSE, &m);
1813 mono_loader_lock (void)
1815 EnterCriticalSection (&loader_mutex);
1819 mono_loader_unlock (void)
1821 LeaveCriticalSection (&loader_mutex);
1825 * mono_method_signature:
1827 * Return the signature of the method M. On failure, returns NULL.
1829 MonoMethodSignature*
1830 mono_method_signature (MonoMethod *m)
1836 gboolean can_cache_signature;
1837 MonoGenericContainer *container;
1838 MonoMethodSignature *signature = NULL;
1841 /* We need memory barriers below because of the double-checked locking pattern */
1844 return m->signature;
1846 mono_loader_lock ();
1849 mono_loader_unlock ();
1850 return m->signature;
1853 if (m->is_inflated) {
1854 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
1855 /* the lock is recursive */
1856 signature = mono_method_signature (imethod->declaring);
1857 signature = inflate_generic_signature (imethod->declaring->klass->image, signature, mono_method_get_context (m));
1858 mono_memory_barrier ();
1859 m->signature = signature;
1860 mono_loader_unlock ();
1861 return m->signature;
1864 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
1865 idx = mono_metadata_token_index (m->token);
1866 img = m->klass->image;
1868 sig = mono_metadata_blob_heap (img, mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
1870 g_assert (!m->klass->generic_class);
1871 container = m->generic_container;
1873 container = m->klass->generic_container;
1875 /* Generic signatures depend on the container so they cannot be cached */
1876 /* icall/pinvoke signatures cannot be cached cause we modify them below */
1877 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
1879 /* If the method has parameter attributes, that can modify the signature */
1880 pattrs = mono_metadata_get_param_attrs (img, idx);
1882 can_cache_signature = FALSE;
1886 if (can_cache_signature)
1887 signature = g_hash_table_lookup (img->method_signatures, sig);
1890 const char *sig_body;
1892 size = mono_metadata_decode_blob_size (sig, &sig_body);
1894 signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL);
1896 mono_loader_unlock ();
1900 if (can_cache_signature)
1901 g_hash_table_insert (img->method_signatures, (gpointer)sig, signature);
1904 /* Verify metadata consistency */
1905 if (signature->generic_param_count) {
1906 if (!container || !container->is_method)
1907 g_error ("Signature claims method has generic parameters, but generic_params table says it doesn't");
1908 if (container->type_argc != signature->generic_param_count)
1909 g_error ("Inconsistent generic parameter count. Signature says %d, generic_params table says %d",
1910 signature->generic_param_count, container->type_argc);
1911 } else if (container && container->is_method && container->type_argc)
1912 g_error ("generic_params table claims method has generic parameters, but signature says it doesn't");
1914 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
1915 signature->pinvoke = 1;
1916 else if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1917 MonoCallConvention conv = 0;
1918 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
1919 signature->pinvoke = 1;
1921 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
1922 case 0: /* no call conv, so using default */
1923 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
1924 conv = MONO_CALL_DEFAULT;
1926 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
1929 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
1930 conv = MONO_CALL_STDCALL;
1932 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
1933 conv = MONO_CALL_THISCALL;
1935 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
1936 conv = MONO_CALL_FASTCALL;
1938 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
1939 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
1941 g_warning ("unsupported calling convention : 0x%04x", piinfo->piflags);
1942 g_assert_not_reached ();
1944 signature->call_convention = conv;
1947 mono_memory_barrier ();
1948 m->signature = signature;
1950 mono_loader_unlock ();
1951 return m->signature;
1955 mono_method_get_name (MonoMethod *method)
1957 return method->name;
1961 mono_method_get_class (MonoMethod *method)
1963 return method->klass;
1967 mono_method_get_token (MonoMethod *method)
1969 return method->token;
1973 mono_method_get_header (MonoMethod *method)
1979 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1981 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))
1985 if (G_LIKELY (mn->header))
1991 mono_loader_lock ();
1994 mono_loader_unlock ();
1998 if (method->is_inflated) {
1999 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2000 MonoMethodHeader *header;
2001 /* the lock is recursive */
2002 header = mono_method_get_header (imethod->declaring);
2003 mn->header = inflate_generic_header (header, mono_method_get_context (method));
2004 mono_loader_unlock ();
2008 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
2009 idx = mono_metadata_token_index (method->token);
2010 img = method->klass->image;
2011 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
2012 loc = mono_image_rva_map (img, rva);
2016 mn->header = mono_metadata_parse_mh_full (img, method->generic_container, loc);
2018 mono_loader_unlock ();
2023 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
2026 *iflags = method->iflags;
2027 return method->flags;
2031 * Find the method index in the metadata methodDef table.
2034 mono_method_get_index (MonoMethod *method) {
2035 MonoClass *klass = method->klass;
2039 return mono_metadata_token_index (method->token);
2041 mono_class_setup_methods (klass);
2042 for (i = 0; i < klass->method.count; ++i) {
2043 if (method == klass->methods [i]) {
2044 if (klass->image->uncompressed_metadata)
2045 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
2047 return klass->method.first + i + 1;