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/utils/mono-logger.h>
37 #include <mono/utils/mono-dl.h>
38 #include <mono/metadata/exception.h>
40 MonoDefaults mono_defaults;
43 * This lock protects the hash tables inside MonoImage used by the metadata
44 * loading functions in class.c and loader.c.
46 static CRITICAL_SECTION loader_mutex;
50 * This TLS variable contains the last type load error encountered by the loader.
52 guint32 loader_error_thread_id;
57 InitializeCriticalSection (&loader_mutex);
59 loader_error_thread_id = TlsAlloc ();
63 mono_loader_cleanup (void)
65 TlsFree (loader_error_thread_id);
67 /*DeleteCriticalSection (&loader_mutex);*/
71 * Handling of type load errors should be done as follows:
73 * If something could not be loaded, the loader should call one of the
74 * mono_loader_set_error_XXX functions ()
75 * with the appropriate arguments, then return NULL to report the failure. The error
76 * should be propagated until it reaches code which can throw managed exceptions. At that
77 * point, an exception should be thrown based on the information returned by
78 * mono_loader_get_error (). Then the error should be cleared by calling
79 * mono_loader_clear_error ().
83 set_loader_error (MonoLoaderError *error)
85 TlsSetValue (loader_error_thread_id, error);
89 * mono_loader_set_error_assembly_load:
91 * Set the loader error for this thread.
94 mono_loader_set_error_assembly_load (const char *assembly_name, gboolean ref_only)
96 MonoLoaderError *error;
98 if (mono_loader_get_last_error ())
101 error = g_new0 (MonoLoaderError, 1);
102 error->exception_type = MONO_EXCEPTION_FILE_NOT_FOUND;
103 error->assembly_name = g_strdup (assembly_name);
104 error->ref_only = ref_only;
107 * This is not strictly needed, but some (most) of the loader code still
108 * can't deal with load errors, and this message is more helpful than an
112 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);
114 g_warning ("Could not load file or assembly '%s' or one of its dependencies.", assembly_name);
116 set_loader_error (error);
120 * mono_loader_set_error_type_load:
122 * Set the loader error for this thread.
125 mono_loader_set_error_type_load (const char *class_name, const char *assembly_name)
127 MonoLoaderError *error;
129 if (mono_loader_get_last_error ())
132 error = g_new0 (MonoLoaderError, 1);
133 error->exception_type = MONO_EXCEPTION_TYPE_LOAD;
134 error->class_name = g_strdup (class_name);
135 error->assembly_name = g_strdup (assembly_name);
138 * This is not strictly needed, but some (most) of the loader code still
139 * can't deal with load errors, and this message is more helpful than an
142 g_warning ("The class %s could not be loaded, used in %s", class_name, assembly_name);
144 set_loader_error (error);
148 * mono_loader_set_error_method_load:
150 * Set the loader error for this thread. MEMBER_NAME should point to a string
154 mono_loader_set_error_method_load (const char *class_name, const char *member_name)
156 MonoLoaderError *error;
158 /* FIXME: Store the signature as well */
159 if (mono_loader_get_last_error ())
162 error = g_new0 (MonoLoaderError, 1);
163 error->exception_type = MONO_EXCEPTION_MISSING_METHOD;
164 error->class_name = g_strdup (class_name);
165 error->member_name = member_name;
167 set_loader_error (error);
171 * mono_loader_set_error_field_load:
173 * Set the loader error for this thread. MEMBER_NAME should point to a string
177 mono_loader_set_error_field_load (MonoClass *klass, const char *member_name)
179 MonoLoaderError *error;
181 /* FIXME: Store the signature as well */
182 if (mono_loader_get_last_error ())
185 error = g_new0 (MonoLoaderError, 1);
186 error->exception_type = MONO_EXCEPTION_MISSING_FIELD;
187 error->klass = klass;
188 error->member_name = member_name;
190 set_loader_error (error);
194 * mono_loader_get_last_error:
196 * Returns information about the last type load exception encountered by the loader, or
197 * NULL. After use, the exception should be cleared by calling mono_loader_clear_error.
200 mono_loader_get_last_error (void)
202 return (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
206 * mono_loader_clear_error:
208 * Disposes any loader error messages on this thread
211 mono_loader_clear_error (void)
213 MonoLoaderError *ex = (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
216 g_free (ex->class_name);
217 g_free (ex->assembly_name);
220 TlsSetValue (loader_error_thread_id, NULL);
225 * mono_loader_error_prepare_exception:
226 * @error: The MonoLoaderError to turn into an exception
228 * This turns a MonoLoaderError into an exception that can be thrown
229 * and resets the Mono Loader Error state during this process.
233 mono_loader_error_prepare_exception (MonoLoaderError *error)
235 MonoException *ex = NULL;
237 switch (error->exception_type) {
238 case MONO_EXCEPTION_TYPE_LOAD: {
239 char *cname = g_strdup (error->class_name);
240 char *aname = g_strdup (error->assembly_name);
241 MonoString *class_name;
243 mono_loader_clear_error ();
245 class_name = mono_string_new (mono_domain_get (), cname);
247 ex = mono_get_exception_type_load (class_name, aname);
252 case MONO_EXCEPTION_MISSING_METHOD: {
253 char *cname = g_strdup (error->class_name);
254 char *aname = g_strdup (error->member_name);
256 mono_loader_clear_error ();
257 ex = mono_get_exception_missing_method (cname, aname);
263 case MONO_EXCEPTION_MISSING_FIELD: {
264 char *cnspace = g_strdup (*error->klass->name_space ? error->klass->name_space : "");
265 char *cname = g_strdup (error->klass->name);
266 char *cmembername = g_strdup (error->member_name);
269 mono_loader_clear_error ();
270 class_name = g_strdup_printf ("%s%s%s", cnspace, cnspace ? "." : "", cname);
272 ex = mono_get_exception_missing_field (class_name, cmembername);
275 g_free (cmembername);
280 case MONO_EXCEPTION_FILE_NOT_FOUND: {
285 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);
287 msg = g_strdup_printf ("Could not load file or assembly '%s' or one of its dependencies.", error->assembly_name);
288 filename = g_strdup (error->assembly_name);
289 /* Has to call this before calling anything which might call mono_class_init () */
290 mono_loader_clear_error ();
291 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), filename));
298 g_assert_not_reached ();
304 static MonoClassField*
305 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
306 MonoGenericContext *context)
309 MonoClassField *field;
310 MonoTableInfo *tables = image->tables;
312 guint32 nindex, class;
315 guint32 idx = mono_metadata_token_index (token);
317 if (image->dynamic) {
318 MonoClassField *result = mono_lookup_dynamic_token (image, token, context);
319 *retklass = result->parent;
323 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
324 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
325 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
327 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
329 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
330 mono_metadata_decode_blob_size (ptr, &ptr);
331 /* we may want to check the signature here... */
334 case MONO_MEMBERREF_PARENT_TYPEDEF:
335 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
337 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
338 g_warning ("Missing field %s in class %s (typeref index %d)", fname, name, nindex);
342 mono_class_init (klass);
345 field = mono_class_get_field_from_name (klass, fname);
347 case MONO_MEMBERREF_PARENT_TYPEREF:
348 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
350 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
351 g_warning ("Missing field %s in class %s (typeref index %d)", fname, name, nindex);
355 mono_class_init (klass);
358 field = mono_class_get_field_from_name (klass, fname);
360 case MONO_MEMBERREF_PARENT_TYPESPEC: {
361 /*guint32 bcols [MONO_TYPESPEC_SIZE];
365 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
366 bcols, MONO_TYPESPEC_SIZE);
367 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
368 len = mono_metadata_decode_value (ptr, &ptr);
369 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
371 klass = mono_class_from_mono_type (type);
372 mono_class_init (klass);
373 g_print ("type in sig: %s\n", klass->name);*/
374 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
375 mono_class_init (klass);
378 field = mono_class_get_field_from_name (klass, fname);
382 g_warning ("field load from %x", class);
387 mono_loader_set_error_field_load (klass, fname);
393 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
394 MonoGenericContext *context)
398 MonoClassField *field;
400 if (image->dynamic) {
401 MonoClassField *result = mono_lookup_dynamic_token (image, token, context);
402 *retklass = result->parent;
407 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
408 *retklass = field->parent;
409 mono_loader_unlock ();
412 mono_loader_unlock ();
414 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
415 field = field_from_memberref (image, token, retklass, context);
417 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
420 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
426 field = mono_class_get_field (k, token);
430 if (field && !field->parent->generic_class)
431 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
432 mono_loader_unlock ();
437 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
441 if (sig1->hasthis != sig2->hasthis ||
442 sig1->sentinelpos != sig2->sentinelpos)
445 for (i = 0; i < sig1->sentinelpos; i++) {
446 MonoType *p1 = sig1->params[i];
447 MonoType *p2 = sig2->params[i];
449 /*if (p1->attrs != p2->attrs)
452 if (!mono_metadata_type_equal (p1, p2))
456 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
462 find_method_in_class (MonoClass *in_class, const char *name, const char *qname, const char *fqname,
463 MonoMethodSignature *sig, MonoClass *from_class)
467 mono_class_setup_methods (in_class);
468 for (i = 0; i < in_class->method.count; ++i) {
469 MonoMethod *m = in_class->methods [i];
471 if (!((fqname && !strcmp (m->name, fqname)) ||
472 (qname && !strcmp (m->name, qname)) ||
473 (name && !strcmp (m->name, name))))
476 if (sig->call_convention == MONO_CALL_VARARG) {
477 if (mono_metadata_signature_vararg_match (sig, mono_method_signature (m)))
480 if (mono_metadata_signature_equal (sig, mono_method_signature (m)))
485 if (i < in_class->method.count) {
486 mono_class_setup_methods (from_class);
487 g_assert (from_class->method.count == in_class->method.count);
488 return from_class->methods [i];
494 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class)
497 char *qname, *fqname, *class_name;
498 gboolean is_interface;
499 MonoMethod *result = NULL;
501 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
504 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
506 qname = g_strconcat (class_name, ".", name, NULL);
507 if (ic->name_space && ic->name_space [0])
508 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
512 class_name = qname = fqname = NULL;
515 g_assert (from_class);
516 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class);
520 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
523 g_assert (from_class->interface_count == in_class->interface_count);
524 for (i = 0; i < in_class->interface_count; i++) {
525 MonoClass *in_ic = in_class->interfaces [i];
526 MonoClass *from_ic = from_class->interfaces [i];
527 char *ic_qname, *ic_fqname, *ic_class_name;
529 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
530 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
531 if (in_ic->name_space && in_ic->name_space [0])
532 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
536 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic);
537 g_free (ic_class_name);
544 in_class = in_class->parent;
545 from_class = from_class->parent;
547 g_assert (!in_class == !from_class);
550 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class);
559 static MonoMethodSignature*
560 inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context)
562 MonoMethodSignature *res;
569 res = mono_metadata_signature_alloc (image, sig->param_count);
570 res->ret = mono_class_inflate_generic_type (sig->ret, context);
571 is_open = mono_class_is_open_constructed_type (res->ret);
572 for (i = 0; i < sig->param_count; ++i) {
573 res->params [i] = mono_class_inflate_generic_type (sig->params [i], context);
575 is_open = mono_class_is_open_constructed_type (res->params [i]);
577 res->hasthis = sig->hasthis;
578 res->explicit_this = sig->explicit_this;
579 res->call_convention = sig->call_convention;
580 res->pinvoke = sig->pinvoke;
581 res->generic_param_count = sig->generic_param_count;
582 res->sentinelpos = sig->sentinelpos;
583 res->has_type_parameters = is_open;
584 res->is_inflated = 1;
588 static MonoMethodHeader*
589 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
591 MonoMethodHeader *res;
593 res = g_malloc0 (sizeof (MonoMethodHeader) + sizeof (gpointer) * header->num_locals);
594 res->code = header->code;
595 res->code_size = header->code_size;
596 res->max_stack = header->max_stack;
597 res->num_clauses = header->num_clauses;
598 res->init_locals = header->init_locals;
599 res->num_locals = header->num_locals;
600 res->clauses = header->clauses;
601 for (i = 0; i < header->num_locals; ++i)
602 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
603 if (res->num_clauses) {
604 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
605 for (i = 0; i < header->num_clauses; ++i) {
606 MonoExceptionClause *clause = &res->clauses [i];
608 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
610 t = mono_class_inflate_generic_type (&clause->data.catch_class->byval_arg, context);
611 clause->data.catch_class = mono_class_from_mono_type (t);
618 * token is the method_ref or method_def token used in a call IL instruction.
621 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
623 int table = mono_metadata_token_table (token);
624 int idx = mono_metadata_token_index (token);
625 guint32 cols [MONO_MEMBERREF_SIZE];
626 MonoMethodSignature *sig, *prev_sig;
629 /* !table is for wrappers: we should really assign their own token to them */
630 if (!table || table == MONO_TABLE_METHOD)
631 return mono_method_signature (method);
633 if (table == MONO_TABLE_METHODSPEC) {
634 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
635 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
636 mono_method_signature (method));
637 g_assert (method->is_inflated);
639 return mono_method_signature (method);
642 if (method->klass->generic_class)
643 return mono_method_signature (method);
646 /* FIXME: This might be incorrect for vararg methods */
647 return mono_method_signature (method);
650 sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
651 mono_loader_unlock ();
653 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
655 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
656 mono_metadata_decode_blob_size (ptr, &ptr);
657 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
660 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
662 /* Somebody got in before us */
663 /* FIXME: Free sig */
667 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
668 mono_loader_unlock ();
671 sig = inflate_generic_signature (image, sig, context);
677 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
679 return mono_method_get_signature_full (method, image, token, NULL);
682 /* this is only for the typespec array methods */
684 search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
687 for (i = 0; i < klass->method.count; ++i) {
688 MonoMethod *method = klass->methods [i];
689 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
696 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
697 gboolean *used_context)
699 MonoClass *klass = NULL;
700 MonoMethod *method = NULL;
701 MonoTableInfo *tables = image->tables;
703 guint32 nindex, class;
705 MonoMethodSignature *sig;
708 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
709 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
710 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
711 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
712 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
714 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
717 * Whether we actually used the `typespec_context' or not.
718 * This is used to tell our caller whether or not it's safe to insert the returned
719 * method into a cache.
722 *used_context = class == MONO_MEMBERREF_PARENT_TYPESPEC;
725 case MONO_MEMBERREF_PARENT_TYPEREF:
726 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
728 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
729 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
730 mono_loader_set_error_method_load (name, mname);
735 case MONO_MEMBERREF_PARENT_TYPESPEC:
737 * Parse the TYPESPEC in the parent's context.
739 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context);
741 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_SPEC | nindex);
742 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
743 mono_loader_set_error_method_load (name, mname);
748 case MONO_MEMBERREF_PARENT_TYPEDEF:
749 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
751 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | nindex);
752 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
753 mono_loader_set_error_method_load (name, mname);
758 case MONO_MEMBERREF_PARENT_METHODDEF:
759 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
763 /* This message leaks */
764 char *message = g_strdup_printf ("Memberref parent unknown: class: %d, index %d", class, nindex);
765 mono_loader_set_error_method_load ("", message);
771 mono_class_init (klass);
773 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
774 mono_metadata_decode_blob_size (ptr, &ptr);
776 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
781 case MONO_MEMBERREF_PARENT_TYPEREF:
782 case MONO_MEMBERREF_PARENT_TYPEDEF:
783 method = find_method (klass, NULL, mname, sig, klass);
786 case MONO_MEMBERREF_PARENT_TYPESPEC: {
790 type = &klass->byval_arg;
792 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
793 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
794 method = find_method (in_class, NULL, mname, sig, klass);
798 /* we're an array and we created these methods already in klass in mono_class_init () */
799 result = search_in_array_class (klass, mname, sig);
803 g_assert_not_reached ();
807 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
808 g_assert_not_reached ();
812 char *msig = mono_signature_get_desc (sig, FALSE);
813 char * class_name = mono_type_get_name (&klass->byval_arg);
814 GString *s = g_string_new (mname);
815 if (sig->generic_param_count)
816 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
817 g_string_append_printf (s, "(%s)", msig);
819 msig = g_string_free (s, FALSE);
822 "Missing method %s::%s in assembly %s, referenced in assembly %s",
823 class_name, msig, klass->image->name, image->name);
824 mono_loader_set_error_method_load (class_name, mname);
828 mono_metadata_free_method_signature (sig);
834 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
836 MonoMethod *method, *inflated;
838 MonoTableInfo *tables = image->tables;
839 MonoGenericContext new_context;
840 MonoGenericInst *inst;
842 guint32 cols [MONO_METHODSPEC_SIZE];
843 guint32 token, nindex, param_count;
845 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
846 token = cols [MONO_METHODSPEC_METHOD];
847 nindex = token >> MONO_METHODDEFORREF_BITS;
849 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
851 mono_metadata_decode_value (ptr, &ptr);
853 param_count = mono_metadata_decode_value (ptr, &ptr);
854 g_assert (param_count);
857 * Be careful with the two contexts here:
859 * ----------------------------------------
861 * static void Hello<T> (S s, T t) { }
863 * static void Test<U> (U u) {
864 * Foo<U>.Hello<string> (u, "World");
867 * ----------------------------------------
869 * Let's assume we're currently JITing Foo<int>.Test<long>
870 * (ie. `S' is instantiated as `int' and `U' is instantiated as `long').
872 * The call to Hello() is encoded with a MethodSpec with a TypeSpec as parent
873 * (MONO_MEMBERREF_PARENT_TYPESPEC).
875 * The TypeSpec is encoded as `Foo<!!0>', so we need to parse it in the current
876 * context (S=int, U=long) to get the correct `Foo<long>'.
878 * After that, we parse the memberref signature in the new context
879 * (S=int, T=uninstantiated) and get the open generic method `Foo<long>.Hello<T>'.
882 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
883 method = mono_get_method_full (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context);
885 method = method_from_memberref (image, nindex, context, NULL);
887 klass = method->klass;
889 /* FIXME: Is this invalid metadata? Should we throw an exception instead? */
890 g_assert (!klass->generic_container);
892 if (klass->generic_class) {
893 g_assert (method->is_inflated);
894 method = ((MonoMethodInflated *) method)->declaring;
897 new_context.class_inst = klass->generic_class ? klass->generic_class->context.class_inst : NULL;
900 * When parsing the methodspec signature, we're in the old context again:
902 * ----------------------------------------
904 * static void Hello<T> (T t) { }
906 * static void Test<U> (U u) {
910 * ----------------------------------------
912 * Let's assume we're currently JITing "Foo.Test<float>".
914 * In this case, we already parsed the memberref as "Foo.Hello<T>" and the methodspec
915 * signature is "<!!0>". This means that we must instantiate the method type parameter
916 * `T' from the new method with the method type parameter `U' from the current context;
917 * ie. instantiate the method as `Foo.Hello<float>.
920 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr);
922 if (context && inst->is_open)
923 inst = mono_metadata_inflate_generic_inst (inst, context);
925 new_context.method_inst = inst;
927 inflated = mono_class_inflate_generic_method_full (method, klass, &new_context);
940 static MonoDllMap *global_dll_map;
943 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
954 * we use the first entry we find that matches, since entries from
955 * the config file are prepended to the list and we document that the
958 for (; dll_map; dll_map = dll_map->next) {
959 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
960 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
962 } else if (strcmp (dll_map->dll, dll)) {
965 if (!found && dll_map->target) {
966 *rdll = dll_map->target;
968 /* we don't quit here, because we could find a full
969 * entry that matches also function and that has priority.
972 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
973 *rfunc = dll_map->target_func;
978 mono_loader_unlock ();
983 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
986 if (assembly && assembly->dll_map) {
987 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
991 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
995 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
1001 entry = g_malloc0 (sizeof (MonoDllMap));
1002 entry->dll = dll? g_strdup (dll): NULL;
1003 entry->target = tdll? g_strdup (tdll): NULL;
1004 entry->func = func? g_strdup (func): NULL;
1005 entry->target_func = tfunc? g_strdup (tfunc): NULL;
1006 entry->next = global_dll_map;
1007 global_dll_map = entry;
1009 MonoMemPool *mpool = assembly->mempool;
1010 entry = mono_mempool_alloc0 (mpool, sizeof (MonoDllMap));
1011 entry->dll = dll? mono_mempool_strdup (mpool, dll): NULL;
1012 entry->target = tdll? mono_mempool_strdup (mpool, tdll): NULL;
1013 entry->func = func? mono_mempool_strdup (mpool, func): NULL;
1014 entry->target_func = tfunc? mono_mempool_strdup (mpool, tfunc): NULL;
1015 entry->next = assembly->dll_map;
1016 assembly->dll_map = entry;
1019 mono_loader_unlock ();
1022 static GHashTable *global_module_map;
1025 cached_module_load (const char *name, int flags, char **err)
1028 mono_loader_lock ();
1029 if (!global_module_map)
1030 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1031 res = g_hash_table_lookup (global_module_map, name);
1034 mono_loader_unlock ();
1037 res = mono_dl_open (name, flags, err);
1039 g_hash_table_insert (global_module_map, g_strdup (name), res);
1040 mono_loader_unlock ();
1045 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1047 MonoImage *image = method->klass->image;
1048 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1049 MonoTableInfo *tables = image->tables;
1050 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1051 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1052 guint32 im_cols [MONO_IMPLMAP_SIZE];
1053 guint32 scope_token;
1054 const char *import = NULL;
1055 const char *orig_scope;
1056 const char *new_scope;
1058 char *full_name, *file_name;
1060 MonoDl *module = NULL;
1062 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1065 return piinfo->addr;
1067 if (method->klass->image->dynamic) {
1068 MonoReflectionMethodAux *method_aux =
1069 g_hash_table_lookup (
1070 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1074 import = method_aux->dllentry;
1075 orig_scope = method_aux->dll;
1078 if (!piinfo->implmap_idx)
1081 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1083 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1084 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1085 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1086 orig_scope = mono_metadata_string_heap (image, scope_token);
1089 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1091 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1092 "DllImport attempting to load: '%s'.", new_scope);
1099 /* we allow a special name to dlopen from the running process namespace */
1100 if (strcmp (new_scope, "__Internal") == 0)
1101 module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1104 * Try loading the module using a variety of names
1106 for (i = 0; i < 4; ++i) {
1109 /* Try the original name */
1110 file_name = g_strdup (new_scope);
1113 /* Try trimming the .dll extension */
1114 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1115 file_name = g_strdup (new_scope);
1116 file_name [strlen (new_scope) - 4] = '\0';
1122 if (strstr (new_scope, "lib") != new_scope) {
1123 file_name = g_strdup_printf ("lib%s", new_scope);
1129 #ifndef PLATFORM_WIN32
1130 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1131 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1132 !g_ascii_strcasecmp ("user32", new_scope) ||
1133 !g_ascii_strcasecmp ("kernel", new_scope)) {
1134 file_name = g_strdup ("libMonoSupportW.so");
1138 #ifndef PLATFORM_WIN32
1145 while ((full_name = mono_dl_build_path (NULL, file_name, &iter))) {
1146 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1147 "DllImport loading location: '%s'.", full_name);
1148 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1150 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1151 "DllImport error loading library: '%s'.",
1163 while ((full_name = mono_dl_build_path (".", file_name, &iter))) {
1164 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1165 "DllImport loading library: '%s'.", full_name);
1166 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1168 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1169 "DllImport error loading library '%s'.",
1180 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1181 "DllImport loading: '%s'.", file_name);
1182 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1184 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1185 "DllImport error loading library '%s'.",
1197 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1198 "DllImport unable to load library '%s'.",
1203 *exc_class = "DllNotFoundException";
1204 *exc_arg = new_scope;
1209 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1210 "Searching for '%s'.", import);
1212 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1213 error_msg = mono_dl_symbol (module, import, &piinfo->addr);
1215 char *mangled_name = NULL, *mangled_name2 = NULL;
1218 int mangle_param_count;
1219 #ifdef PLATFORM_WIN32
1224 * Search using a variety of mangled names
1226 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1227 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1228 gboolean need_param_count = FALSE;
1229 #ifdef PLATFORM_WIN32
1230 if (mangle_stdcall > 0)
1231 need_param_count = TRUE;
1233 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1238 mangled_name = (char*)import;
1239 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1240 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1241 /* Try the mangled name first */
1242 if (mangle_charset == 0)
1243 mangled_name = g_strconcat (import, "W", NULL);
1245 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1246 #ifdef PLATFORM_WIN32
1247 if (mangle_charset == 0)
1248 mangled_name = g_strconcat (import, "W", NULL);
1250 /* Try the mangled name last */
1251 if (mangle_charset == 1)
1252 mangled_name = g_strconcat (import, "A", NULL);
1255 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1257 /* Try the mangled name last */
1258 if (mangle_charset == 1)
1259 mangled_name = g_strconcat (import, "A", NULL);
1263 #ifdef PLATFORM_WIN32
1264 if (mangle_param_count == 0)
1265 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1267 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1268 param_count = mangle_param_count;
1270 /* Try the stdcall mangled name */
1272 * gcc under windows creates mangled names without the underscore, but MS.NET
1273 * doesn't support it, so we doesn't support it either.
1275 if (mangle_stdcall == 1)
1276 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1278 mangled_name2 = mangled_name;
1280 mangled_name2 = mangled_name;
1283 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1284 "Probing '%s'.", mangled_name2);
1286 error_msg = mono_dl_symbol (module, mangled_name2, &piinfo->addr);
1289 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1290 "Found as '%s'.", mangled_name2);
1292 if (mangled_name != mangled_name2)
1293 g_free (mangled_name2);
1294 if (mangled_name != import)
1295 g_free (mangled_name);
1301 if (!piinfo->addr) {
1304 *exc_class = "EntryPointNotFoundException";
1309 return piinfo->addr;
1313 * LOCKING: assumes the loader lock to be taken.
1316 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1317 MonoGenericContext *context, gboolean *used_context)
1320 int table = mono_metadata_token_table (token);
1321 int idx = mono_metadata_token_index (token);
1322 MonoTableInfo *tables = image->tables;
1323 MonoGenericContainer *generic_container = NULL, *container = NULL;
1324 const char *sig = NULL;
1326 guint32 cols [MONO_TYPEDEF_SIZE];
1329 return mono_lookup_dynamic_token (image, token, context);
1331 if (table != MONO_TABLE_METHOD) {
1332 if (table == MONO_TABLE_METHODSPEC) {
1333 if (used_context) *used_context = TRUE;
1334 return method_from_methodspec (image, context, idx);
1336 if (table != MONO_TABLE_MEMBERREF)
1337 g_print("got wrong token: 0x%08x\n", token);
1338 g_assert (table == MONO_TABLE_MEMBERREF);
1339 return method_from_memberref (image, idx, context, used_context);
1342 if (used_context) *used_context = FALSE;
1344 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1346 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1347 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
1348 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodPInvoke));
1350 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodNormal));
1352 mono_stats.method_count ++;
1355 guint32 type = mono_metadata_typedef_from_method (image, token);
1356 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
1362 result->klass = klass;
1363 result->flags = cols [2];
1364 result->iflags = cols [1];
1365 result->token = token;
1366 result->name = mono_metadata_string_heap (image, cols [3]);
1368 container = klass->generic_container;
1369 generic_container = mono_metadata_load_generic_params (image, token, container);
1370 if (generic_container) {
1371 generic_container->owner.method = result;
1373 mono_metadata_load_generic_param_constraints (image, token, generic_container);
1375 for (i = 0; i < generic_container->type_argc; i++)
1376 mono_class_from_generic_parameter (&generic_container->type_params [i], image, TRUE);
1378 container = generic_container;
1382 if (!sig) /* already taken from the methodref */
1383 sig = mono_metadata_blob_heap (image, cols [4]);
1384 size = mono_metadata_decode_blob_size (sig, &sig);
1386 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1387 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1388 result->string_ctor = 1;
1389 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1390 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1391 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1393 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1394 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1397 /* FIXME: lazyness for generics too, but how? */
1398 if (!(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
1399 !(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
1400 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
1401 gpointer loc = mono_image_rva_map (image, cols [0]);
1403 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (image, container, loc);
1406 result->generic_container = generic_container;
1412 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1414 return mono_get_method_full (image, token, klass, NULL);
1418 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1419 MonoGenericContext *context)
1422 gboolean used_context = FALSE;
1424 /* We do everything inside the lock to prevent creation races */
1426 mono_loader_lock ();
1428 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
1429 mono_loader_unlock ();
1433 result = mono_get_method_from_token (image, token, klass, context, &used_context);
1435 //printf ("GET: %s\n", mono_method_full_name (result, TRUE));
1438 g_message (G_STRLOC ": %s - %d - %d", mono_method_full_name (result, TRUE),
1439 result->is_inflated, used_context);
1443 * `used_context' specifies whether or not mono_get_method_from_token() actually
1444 * used the `context' to get the method. See bug #80969.
1447 if (!used_context && !(result && result->is_inflated))
1448 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
1450 mono_loader_unlock ();
1456 * mono_get_method_constrained:
1458 * This is used when JITing the `constrained.' opcode.
1460 * This returns two values: the contrained method, which has been inflated
1461 * as the function return value; And the original CIL-stream method as
1462 * declared in cil_method. The later is used for verification.
1465 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1466 MonoGenericContext *context, MonoMethod **cil_method)
1468 MonoMethod *method, *result;
1469 MonoClass *ic = NULL;
1470 MonoGenericContext *class_context = NULL, *method_context = NULL;
1471 MonoMethodSignature *sig;
1473 mono_loader_lock ();
1475 *cil_method = mono_get_method_from_token (image, token, NULL, context, NULL);
1477 mono_loader_unlock ();
1481 mono_class_init (constrained_class);
1482 method = *cil_method;
1483 sig = mono_method_signature (method);
1485 if (method->is_inflated && sig->generic_param_count) {
1486 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1487 sig = mono_method_signature (imethod->declaring);
1488 method_context = mono_method_get_context (method);
1491 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1494 if (constrained_class->generic_class)
1495 class_context = mono_class_get_context (constrained_class);
1497 result = find_method (constrained_class, ic, method->name, sig, constrained_class);
1499 g_warning ("Missing method %s.%s.%s in assembly %s token %x", method->klass->name_space,
1500 method->klass->name, method->name, image->name, token);
1501 mono_loader_unlock ();
1506 result = mono_class_inflate_generic_method (result, class_context);
1508 result = mono_class_inflate_generic_method (result, method_context);
1510 mono_loader_unlock ();
1515 mono_free_method (MonoMethod *method)
1517 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
1520 if (method->signature) {
1522 * FIXME: This causes crashes because the types inside signatures and
1523 * locals are shared.
1525 /* mono_metadata_free_method_signature (method->signature); */
1526 /* g_free (method->signature); */
1529 if (method->dynamic) {
1530 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1533 g_free ((char*)method->name);
1534 if (mw->method.header) {
1535 g_free ((char*)mw->method.header->code);
1536 for (i = 0; i < mw->method.header->num_locals; ++i)
1537 g_free (mw->method.header->locals [i]);
1538 g_free (mw->method.header->clauses);
1539 g_free (mw->method.header);
1541 g_free (mw->method_data);
1542 g_free (method->signature);
1548 mono_method_get_param_names (MonoMethod *method, const char **names)
1551 MonoClass *klass = method->klass;
1552 MonoTableInfo *methodt;
1553 MonoTableInfo *paramt;
1556 if (!mono_method_signature (method)->param_count)
1558 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1561 if (klass->generic_class || klass->rank) /* copy the names later */
1564 mono_class_init (klass);
1566 if (klass->image->dynamic) {
1567 MonoReflectionMethodAux *method_aux =
1568 g_hash_table_lookup (
1569 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1570 if (method_aux && method_aux->param_names) {
1571 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1572 if (method_aux->param_names [i + 1])
1573 names [i] = method_aux->param_names [i + 1];
1578 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1579 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1580 idx = mono_method_get_index (method);
1582 guint32 cols [MONO_PARAM_SIZE];
1585 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1587 if (idx < methodt->rows)
1588 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1590 lastp = paramt->rows + 1;
1591 for (i = param_index; i < lastp; ++i) {
1592 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1593 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1594 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1601 mono_method_get_param_token (MonoMethod *method, int index)
1603 MonoClass *klass = method->klass;
1604 MonoTableInfo *methodt;
1607 mono_class_init (klass);
1609 if (klass->image->dynamic) {
1610 g_assert_not_reached ();
1613 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1614 idx = mono_method_get_index (method);
1616 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1620 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
1622 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1629 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1632 MonoClass *klass = method->klass;
1633 MonoTableInfo *methodt;
1634 MonoTableInfo *paramt;
1637 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1640 if (method->klass->image->dynamic) {
1641 MonoReflectionMethodAux *method_aux =
1642 g_hash_table_lookup (
1643 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1644 if (method_aux && method_aux->param_marshall) {
1645 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1646 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1647 if (dyn_specs [i]) {
1648 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1649 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1655 mono_class_init (klass);
1657 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1658 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1659 idx = mono_method_get_index (method);
1661 guint32 cols [MONO_PARAM_SIZE];
1662 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1664 if (idx < methodt->rows)
1665 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1667 lastp = paramt->rows + 1;
1669 for (i = param_index; i < lastp; ++i) {
1670 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1672 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1674 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1676 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1685 mono_method_has_marshal_info (MonoMethod *method)
1688 MonoClass *klass = method->klass;
1689 MonoTableInfo *methodt;
1690 MonoTableInfo *paramt;
1693 if (method->klass->image->dynamic) {
1694 MonoReflectionMethodAux *method_aux =
1695 g_hash_table_lookup (
1696 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1697 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1699 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1706 mono_class_init (klass);
1708 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1709 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1710 idx = mono_method_get_index (method);
1712 guint32 cols [MONO_PARAM_SIZE];
1713 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1715 if (idx + 1 < methodt->rows)
1716 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1718 lastp = paramt->rows + 1;
1720 for (i = param_index; i < lastp; ++i) {
1721 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1723 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1732 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1735 g_assert (method != NULL);
1736 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1738 data = ((MonoMethodWrapper *)method)->method_data;
1739 g_assert (data != NULL);
1740 g_assert (id <= GPOINTER_TO_UINT (*data));
1745 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1746 g_error ("stack walk not installed");
1749 static MonoStackWalkImpl stack_walk = default_stack_walk;
1752 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1754 stack_walk (func, TRUE, user_data);
1758 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1760 stack_walk (func, FALSE, user_data);
1764 mono_install_stack_walk (MonoStackWalkImpl func)
1770 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1772 MonoMethod **dest = data;
1774 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1780 mono_method_get_last_managed (void)
1782 MonoMethod *m = NULL;
1783 stack_walk (last_managed, FALSE, &m);
1788 mono_loader_lock (void)
1790 EnterCriticalSection (&loader_mutex);
1794 mono_loader_unlock (void)
1796 LeaveCriticalSection (&loader_mutex);
1800 * mono_method_signature:
1802 * Return the signature of the method M. On failure, returns NULL.
1804 MonoMethodSignature*
1805 mono_method_signature (MonoMethod *m)
1811 gboolean can_cache_signature;
1812 MonoGenericContainer *container;
1816 return m->signature;
1818 mono_loader_lock ();
1821 mono_loader_unlock ();
1822 return m->signature;
1825 if (m->is_inflated) {
1826 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
1827 MonoMethodSignature *signature;
1828 /* the lock is recursive */
1829 signature = mono_method_signature (imethod->declaring);
1830 m->signature = inflate_generic_signature (imethod->declaring->klass->image, signature, mono_method_get_context (m));
1831 mono_loader_unlock ();
1832 return m->signature;
1835 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
1836 idx = mono_metadata_token_index (m->token);
1837 img = m->klass->image;
1839 sig = mono_metadata_blob_heap (img, mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
1841 g_assert (!m->klass->generic_class);
1842 container = m->generic_container;
1844 container = m->klass->generic_container;
1846 /* Generic signatures depend on the container so they cannot be cached */
1847 /* icall/pinvoke signatures cannot be cached cause we modify them below */
1848 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
1850 /* If the method has parameter attributes, that can modify the signature */
1851 pattrs = mono_metadata_get_param_attrs (img, idx);
1853 can_cache_signature = FALSE;
1857 if (can_cache_signature)
1858 m->signature = g_hash_table_lookup (img->method_signatures, sig);
1860 if (!m->signature) {
1861 const char *sig_body;
1863 size = mono_metadata_decode_blob_size (sig, &sig_body);
1865 m->signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL);
1866 if (!m->signature) {
1867 mono_loader_unlock ();
1871 if (can_cache_signature)
1872 g_hash_table_insert (img->method_signatures, (gpointer)sig, m->signature);
1875 /* Verify metadata consistency */
1876 if (m->signature->generic_param_count) {
1877 if (!container || !container->is_method)
1878 g_error ("Signature claims method has generic parameters, but generic_params table says it doesn't");
1879 if (container->type_argc != m->signature->generic_param_count)
1880 g_error ("Inconsistent generic parameter count. Signature says %d, generic_params table says %d",
1881 m->signature->generic_param_count, container->type_argc);
1882 } else if (container && container->is_method && container->type_argc)
1883 g_error ("generic_params table claims method has generic parameters, but signature says it doesn't");
1885 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
1886 m->signature->pinvoke = 1;
1887 else if ((m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(m->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1888 MonoCallConvention conv = 0;
1889 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
1890 m->signature->pinvoke = 1;
1892 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
1893 case 0: /* no call conv, so using default */
1894 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
1895 conv = MONO_CALL_DEFAULT;
1897 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
1900 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
1901 conv = MONO_CALL_STDCALL;
1903 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
1904 conv = MONO_CALL_THISCALL;
1906 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
1907 conv = MONO_CALL_FASTCALL;
1909 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
1910 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
1912 g_warning ("unsupported calling convention : 0x%04x", piinfo->piflags);
1913 g_assert_not_reached ();
1915 m->signature->call_convention = conv;
1918 mono_loader_unlock ();
1919 return m->signature;
1923 mono_method_get_name (MonoMethod *method)
1925 return method->name;
1929 mono_method_get_class (MonoMethod *method)
1931 return method->klass;
1935 mono_method_get_token (MonoMethod *method)
1937 return method->token;
1941 mono_method_get_header (MonoMethod *method)
1947 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1949 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))
1953 if (G_LIKELY (mn->header))
1959 mono_loader_lock ();
1962 mono_loader_unlock ();
1966 if (method->is_inflated) {
1967 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1968 MonoMethodHeader *header;
1969 /* the lock is recursive */
1970 header = mono_method_get_header (imethod->declaring);
1971 mn->header = inflate_generic_header (header, mono_method_get_context (method));
1972 mono_loader_unlock ();
1976 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1977 idx = mono_metadata_token_index (method->token);
1978 img = method->klass->image;
1979 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1980 loc = mono_image_rva_map (img, rva);
1984 mn->header = mono_metadata_parse_mh_full (img, method->generic_container, loc);
1986 mono_loader_unlock ();
1991 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1994 *iflags = method->iflags;
1995 return method->flags;
1999 * Find the method index in the metadata methodDef table.
2002 mono_method_get_index (MonoMethod *method) {
2003 MonoClass *klass = method->klass;
2007 return mono_metadata_token_index (method->token);
2009 mono_class_setup_methods (klass);
2010 for (i = 0; i < klass->method.count; ++i) {
2011 if (method == klass->methods [i]) {
2012 if (klass->image->uncompressed_metadata)
2013 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
2015 return klass->method.first + i + 1;