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.
26 #include <mono/metadata/metadata.h>
27 #include <mono/metadata/image.h>
28 #include <mono/metadata/assembly.h>
29 #include <mono/metadata/tokentype.h>
30 #include <mono/metadata/cil-coff.h>
31 #include <mono/metadata/tabledefs.h>
32 #include <mono/metadata/metadata-internals.h>
33 #include <mono/metadata/loader.h>
34 #include <mono/metadata/class-internals.h>
35 #include <mono/metadata/debug-helpers.h>
36 #include <mono/metadata/reflection.h>
37 #include <mono/metadata/profiler.h>
38 #include <mono/utils/mono-logger.h>
39 #include <mono/metadata/exception.h>
41 MonoDefaults mono_defaults;
44 * This lock protects the hash tables inside MonoImage used by the metadata
45 * loading functions in class.c and loader.c.
47 static CRITICAL_SECTION loader_mutex;
51 * This TLS variable contains the last type load error encountered by the loader.
53 guint32 loader_error_thread_id;
58 InitializeCriticalSection (&loader_mutex);
60 loader_error_thread_id = TlsAlloc ();
64 mono_loader_cleanup (void)
66 TlsFree (loader_error_thread_id);
68 /*DeleteCriticalSection (&loader_mutex);*/
72 * Handling of type load errors should be done as follows:
74 * If something could not be loaded, the loader should call one of the
75 * mono_loader_set_error_XXX functions ()
76 * with the appropriate arguments, then return NULL to report the failure. The error
77 * should be propagated until it reaches code which can throw managed exceptions. At that
78 * point, an exception should be thrown based on the information returned by
79 * mono_loader_get_error (). Then the error should be cleared by calling
80 * mono_loader_clear_error ().
84 set_loader_error (MonoLoaderError *error)
86 TlsSetValue (loader_error_thread_id, error);
90 * mono_loader_set_error_assembly_load:
92 * Set the loader error for this thread.
95 mono_loader_set_error_assembly_load (const char *assembly_name, gboolean ref_only)
97 MonoLoaderError *error;
99 if (mono_loader_get_last_error ())
102 error = g_new0 (MonoLoaderError, 1);
103 error->kind = MONO_LOADER_ERROR_ASSEMBLY;
104 error->assembly_name = g_strdup (assembly_name);
105 error->ref_only = ref_only;
108 * This is not strictly needed, but some (most) of the loader code still
109 * can't deal with load errors, and this message is more helpful than an
113 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);
115 g_warning ("Could not load file or assembly '%s' or one of its dependencies.", assembly_name);
117 set_loader_error (error);
121 * mono_loader_set_error_type_load:
123 * Set the loader error for this thread.
126 mono_loader_set_error_type_load (const char *class_name, const char *assembly_name)
128 MonoLoaderError *error;
130 if (mono_loader_get_last_error ())
133 error = g_new0 (MonoLoaderError, 1);
134 error->kind = MONO_LOADER_ERROR_TYPE;
135 error->class_name = g_strdup (class_name);
136 error->assembly_name = g_strdup (assembly_name);
139 * This is not strictly needed, but some (most) of the loader code still
140 * can't deal with load errors, and this message is more helpful than an
143 g_warning ("The class %s could not be loaded, used in %s", class_name, assembly_name);
145 set_loader_error (error);
149 * mono_loader_set_error_method_load:
151 * Set the loader error for this thread. MEMBER_NAME should point to a string
155 mono_loader_set_error_method_load (const char *class_name, const char *member_name)
157 MonoLoaderError *error;
159 /* FIXME: Store the signature as well */
160 if (mono_loader_get_last_error ())
163 error = g_new0 (MonoLoaderError, 1);
164 error->kind = MONO_LOADER_ERROR_METHOD;
165 error->class_name = g_strdup (class_name);
166 error->member_name = member_name;
168 set_loader_error (error);
172 * mono_loader_set_error_field_load:
174 * Set the loader error for this thread. MEMBER_NAME should point to a string
178 mono_loader_set_error_field_load (MonoClass *klass, const char *member_name)
180 MonoLoaderError *error;
182 /* FIXME: Store the signature as well */
183 if (mono_loader_get_last_error ())
186 error = g_new0 (MonoLoaderError, 1);
187 error->kind = MONO_LOADER_ERROR_FIELD;
188 error->klass = klass;
189 error->member_name = member_name;
191 set_loader_error (error);
195 * mono_loader_get_last_error:
197 * Returns information about the last type load exception encountered by the loader, or
198 * NULL. After use, the exception should be cleared by calling mono_loader_clear_error.
201 mono_loader_get_last_error (void)
203 return (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
207 * mono_loader_clear_error:
209 * Disposes any loader error messages on this thread
212 mono_loader_clear_error (void)
214 MonoLoaderError *ex = (MonoLoaderError*)TlsGetValue (loader_error_thread_id);
217 g_free (ex->class_name);
218 g_free (ex->assembly_name);
221 TlsSetValue (loader_error_thread_id, NULL);
226 * mono_loader_error_prepare_exception:
227 * @error: The MonoLoaderError to turn into an exception
229 * This turns a MonoLoaderError into an exception that can be thrown
230 * and resets the Mono Loader Error state during this process.
234 mono_loader_error_prepare_exception (MonoLoaderError *error)
236 MonoException *ex = NULL;
238 switch (error->kind) {
239 case MONO_LOADER_ERROR_TYPE: {
240 char *cname = g_strdup (error->class_name);
241 char *aname = g_strdup (error->assembly_name);
242 MonoString *class_name;
244 mono_loader_clear_error ();
246 class_name = mono_string_new (mono_domain_get (), cname);
248 ex = mono_get_exception_type_load (class_name, aname);
253 case MONO_LOADER_ERROR_METHOD: {
254 char *cname = g_strdup (error->class_name);
255 char *aname = g_strdup (error->member_name);
257 mono_loader_clear_error ();
258 ex = mono_get_exception_missing_method (cname, aname);
264 case MONO_LOADER_ERROR_FIELD: {
265 char *cnspace = g_strdup (*error->klass->name_space ? error->klass->name_space : "");
266 char *cname = g_strdup (error->klass->name);
267 char *cmembername = g_strdup (error->member_name);
270 mono_loader_clear_error ();
271 class_name = g_strdup_printf ("%s%s%s", cnspace, cnspace ? "." : "", cname);
273 ex = mono_get_exception_missing_field (class_name, cmembername);
276 g_free (cmembername);
281 case MONO_LOADER_ERROR_ASSEMBLY: {
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);
289 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), error->assembly_name));
290 mono_loader_clear_error ();
296 g_assert_not_reached ();
302 static MonoClassField*
303 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
304 MonoGenericContext *context)
307 MonoClassField *field;
308 MonoTableInfo *tables = image->tables;
310 guint32 nindex, class;
313 guint32 idx = mono_metadata_token_index (token);
315 if (image->dynamic) {
316 MonoClassField *result = mono_lookup_dynamic_token (image, token);
317 *retklass = result->parent;
321 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
322 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
323 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
325 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
327 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
328 mono_metadata_decode_blob_size (ptr, &ptr);
329 /* we may want to check the signature here... */
332 case MONO_MEMBERREF_PARENT_TYPEREF:
333 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
335 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
336 g_warning ("Missing field %s in class %s (typeref index %d)", fname, name, nindex);
340 mono_class_init (klass);
343 field = mono_class_get_field_from_name (klass, fname);
345 case MONO_MEMBERREF_PARENT_TYPESPEC: {
346 /*guint32 bcols [MONO_TYPESPEC_SIZE];
350 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
351 bcols, MONO_TYPESPEC_SIZE);
352 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
353 len = mono_metadata_decode_value (ptr, &ptr);
354 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
356 klass = mono_class_from_mono_type (type);
357 mono_class_init (klass);
358 g_print ("type in sig: %s\n", klass->name);*/
359 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
360 mono_class_init (klass);
363 field = mono_class_get_field_from_name (klass, fname);
367 g_warning ("field load from %x", class);
372 mono_loader_set_error_field_load (klass, fname);
378 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
379 MonoGenericContext *context)
383 MonoClassField *field;
385 if (image->dynamic) {
386 MonoClassField *result = mono_lookup_dynamic_token (image, token);
387 *retklass = result->parent;
392 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
393 *retklass = field->parent;
394 mono_loader_unlock ();
397 mono_loader_unlock ();
399 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
400 field = field_from_memberref (image, token, retklass, context);
402 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
405 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
411 field = mono_class_get_field (k, token);
415 if (field && !field->parent->generic_class)
416 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
417 mono_loader_unlock ();
422 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
426 if (sig1->hasthis != sig2->hasthis ||
427 sig1->sentinelpos != sig2->sentinelpos)
430 for (i = 0; i < sig1->sentinelpos; i++) {
431 MonoType *p1 = sig1->params[i];
432 MonoType *p2 = sig2->params[i];
434 /*if (p1->attrs != p2->attrs)
437 if (!mono_metadata_type_equal (p1, p2))
441 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
447 find_method_in_class (MonoClass *in_class, const char *name, const char *qname, const char *fqname,
448 MonoMethodSignature *sig, MonoClass *from_class)
452 mono_class_setup_methods (in_class);
453 for (i = 0; i < in_class->method.count; ++i) {
454 MonoMethod *m = in_class->methods [i];
456 if (!((fqname && !strcmp (m->name, fqname)) ||
457 (qname && !strcmp (m->name, qname)) || !strcmp (m->name, name)))
460 if (sig->call_convention == MONO_CALL_VARARG) {
461 if (mono_metadata_signature_vararg_match (sig, mono_method_signature (m)))
464 if (mono_metadata_signature_equal (sig, mono_method_signature (m)))
469 if (i < in_class->method.count) {
470 mono_class_setup_methods (from_class);
471 g_assert (from_class->method.count == in_class->method.count);
472 return from_class->methods [i];
478 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class)
481 char *qname, *fqname, *class_name;
482 gboolean is_interface;
483 MonoMethod *result = NULL;
485 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
488 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
490 qname = g_strconcat (class_name, ".", name, NULL);
491 if (ic->name_space && ic->name_space [0])
492 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
496 class_name = qname = fqname = NULL;
499 g_assert (from_class);
500 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class);
504 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
507 g_assert (from_class->interface_count == in_class->interface_count);
508 for (i = 0; i < in_class->interface_count; i++) {
509 MonoClass *ic = in_class->interfaces [i];
510 MonoClass *from_ic = from_class->interfaces [i];
512 result = find_method_in_class (ic, name, qname, fqname, sig, from_ic);
517 in_class = in_class->parent;
518 from_class = from_class->parent;
520 g_assert (!in_class == !from_class);
523 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class);
532 static MonoMethodSignature*
533 inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context)
535 MonoMethodSignature *res;
542 res = mono_metadata_signature_alloc (image, sig->param_count);
543 res->ret = mono_class_inflate_generic_type (sig->ret, context);
544 is_open = mono_class_is_open_constructed_type (res->ret);
545 for (i = 0; i < sig->param_count; ++i) {
546 res->params [i] = mono_class_inflate_generic_type (sig->params [i], context);
548 is_open = mono_class_is_open_constructed_type (res->params [i]);
550 res->hasthis = sig->hasthis;
551 res->explicit_this = sig->explicit_this;
552 res->call_convention = sig->call_convention;
553 res->pinvoke = sig->pinvoke;
554 res->generic_param_count = sig->generic_param_count;
555 res->sentinelpos = sig->sentinelpos;
556 res->has_type_parameters = is_open;
557 res->is_inflated = 1;
561 static MonoMethodHeader*
562 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
564 MonoMethodHeader *res;
566 res = g_malloc0 (sizeof (MonoMethodHeader) + sizeof (gpointer) * header->num_locals);
567 res->code = header->code;
568 res->code_size = header->code_size;
569 res->max_stack = header->max_stack;
570 res->num_clauses = header->num_clauses;
571 res->init_locals = header->init_locals;
572 res->num_locals = header->num_locals;
573 res->clauses = header->clauses;
574 for (i = 0; i < header->num_locals; ++i)
575 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
576 if (res->num_clauses) {
577 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
578 for (i = 0; i < header->num_clauses; ++i) {
579 MonoExceptionClause *clause = &res->clauses [i];
581 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
583 t = mono_class_inflate_generic_type (&clause->data.catch_class->byval_arg, context);
584 clause->data.catch_class = mono_class_from_mono_type (t);
591 * token is the method_ref or method_def token used in a call IL instruction.
594 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
596 int table = mono_metadata_token_table (token);
597 int idx = mono_metadata_token_index (token);
598 guint32 cols [MONO_MEMBERREF_SIZE];
599 MonoMethodSignature *sig, *prev_sig;
602 /* !table is for wrappers: we should really assign their own token to them */
603 if (!table || table == MONO_TABLE_METHOD)
604 return mono_method_signature (method);
606 if (table == MONO_TABLE_METHODSPEC) {
607 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
608 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
609 mono_method_signature (method));
610 g_assert (method->is_inflated);
612 return mono_method_signature (method);
615 if (method->klass->generic_class)
616 return mono_method_signature (method);
619 /* FIXME: This might be incorrect for vararg methods */
620 return mono_method_signature (method);
623 sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
624 mono_loader_unlock ();
626 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
628 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
629 mono_metadata_decode_blob_size (ptr, &ptr);
630 sig = mono_metadata_parse_method_signature_full (
631 image, context ? context->container : NULL, 0, ptr, NULL);
634 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
636 /* Somebody got in before us */
637 /* FIXME: Free sig */
641 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
642 mono_loader_unlock ();
645 sig = inflate_generic_signature (image, sig, context);
651 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
653 return mono_method_get_signature_full (method, image, token, NULL);
657 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context)
659 MonoClass *klass = NULL;
660 MonoMethod *method = NULL;
661 MonoTableInfo *tables = image->tables;
663 guint32 nindex, class;
665 MonoMethodSignature *sig;
668 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
669 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
670 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
671 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
672 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
674 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
677 case MONO_MEMBERREF_PARENT_TYPEREF:
678 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
680 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
681 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
682 mono_loader_set_error_method_load (name, mname);
687 case MONO_MEMBERREF_PARENT_TYPESPEC:
689 * Parse the TYPESPEC in the parent's context.
691 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context);
693 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_SPEC | nindex);
694 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
695 mono_loader_set_error_method_load (name, mname);
700 case MONO_MEMBERREF_PARENT_TYPEDEF:
701 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
703 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | nindex);
704 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
705 mono_loader_set_error_method_load (name, mname);
710 case MONO_MEMBERREF_PARENT_METHODDEF:
711 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
715 /* This message leaks */
716 char *message = g_strdup_printf ("Memberref parent unknown: class: %d, index %d", class, nindex);
717 mono_loader_set_error_method_load ("", message);
723 mono_class_init (klass);
725 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
726 mono_metadata_decode_blob_size (ptr, &ptr);
728 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
733 case MONO_MEMBERREF_PARENT_TYPEREF:
734 case MONO_MEMBERREF_PARENT_TYPEDEF:
735 method = find_method (klass, NULL, mname, sig, klass);
738 case MONO_MEMBERREF_PARENT_TYPESPEC: {
742 type = &klass->byval_arg;
744 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
745 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
746 method = find_method (in_class, NULL, mname, sig, klass);
750 result = (MonoMethod *)g_new0 (MonoMethodPInvoke, 1);
751 result->klass = klass;
752 result->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
753 result->flags = METHOD_ATTRIBUTE_PUBLIC;
754 result->signature = sig;
755 result->name = mname;
757 if (!strcmp (mname, ".ctor")) {
758 /* we special-case this in the runtime. */
762 if (!strcmp (mname, "Set")) {
763 g_assert (sig->hasthis);
764 g_assert (type->data.array->rank + 1 == sig->param_count);
765 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
769 if (!strcmp (mname, "Get")) {
770 g_assert (sig->hasthis);
771 g_assert (type->data.array->rank == sig->param_count);
772 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
776 if (!strcmp (mname, "Address")) {
777 g_assert (sig->hasthis);
778 g_assert (type->data.array->rank == sig->param_count);
779 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
783 g_assert_not_reached ();
787 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
788 g_assert_not_reached ();
792 char *msig = mono_signature_get_desc (sig, FALSE);
793 char * class_name = mono_type_get_name (&klass->byval_arg);
794 GString *s = g_string_new (mname);
795 if (sig->generic_param_count)
796 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
797 g_string_append_printf (s, "(%s)", msig);
799 msig = g_string_free (s, FALSE);
802 "Missing method %s::%s in assembly %s, referenced in assembly %s",
803 class_name, msig, klass->image->name, image->name);
804 mono_loader_set_error_method_load (class_name, mname);
808 mono_metadata_free_method_signature (sig);
814 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
816 MonoMethod *method, *inflated;
817 MonoTableInfo *tables = image->tables;
818 MonoGenericContext *new_context = NULL;
819 MonoGenericMethod *gmethod;
820 MonoGenericContainer *container = NULL;
822 guint32 cols [MONO_METHODSPEC_SIZE];
823 guint32 token, nindex, param_count;
825 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
826 token = cols [MONO_METHODSPEC_METHOD];
827 nindex = token >> MONO_METHODDEFORREF_BITS;
829 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
831 mono_metadata_decode_value (ptr, &ptr);
833 param_count = mono_metadata_decode_value (ptr, &ptr);
834 g_assert (param_count);
837 * Be careful with the two contexts here:
839 * ----------------------------------------
841 * static void Hello<T> (S s, T t) { }
843 * static void Test<U> (U u) {
844 * Foo<U>.Hello<string> (u, "World");
847 * ----------------------------------------
849 * Let's assume we're currently JITing Foo<int>.Test<long>
850 * (ie. `S' is instantiated as `int' and `U' is instantiated as `long').
852 * The call to Hello() is encoded with a MethodSpec with a TypeSpec as parent
853 * (MONO_MEMBERREF_PARENT_TYPESPEC).
855 * The TypeSpec is encoded as `Foo<!!0>', so we need to parse it in the current
856 * context (S=int, U=long) to get the correct `Foo<long>'.
858 * After that, we parse the memberref signature in the new context
859 * (S=int, T=uninstantiated) and get the open generic method `Foo<long>.Hello<T>'.
862 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
863 method = mono_get_method_full (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context);
865 method = method_from_memberref (image, nindex, context);
867 method = mono_get_inflated_method (method);
869 container = method->generic_container;
870 g_assert (container);
872 gmethod = g_new0 (MonoGenericMethod, 1);
873 gmethod->generic_class = method->klass->generic_class;
874 gmethod->container = container;
876 new_context = g_new0 (MonoGenericContext, 1);
877 new_context->container = container;
878 new_context->gmethod = gmethod;
879 if (container->parent)
880 new_context->gclass = container->parent->context.gclass;
883 * When parsing the methodspec signature, we're in the old context again:
885 * ----------------------------------------
887 * static void Hello<T> (T t) { }
889 * static void Test<U> (U u) {
893 * ----------------------------------------
895 * Let's assume we're currently JITing "Foo.Test<float>".
897 * In this case, we already parsed the memberref as "Foo.Hello<T>" and the methodspec
898 * signature is "<!!0>". This means that we must instantiate the method type parameter
899 * `T' from the new method with the method type parameter `U' from the current context;
900 * ie. instantiate the method as `Foo.Hello<float>.
903 gmethod->inst = mono_metadata_parse_generic_inst (image, context ? context->container : NULL, param_count, ptr, &ptr);
905 if (context && gmethod->inst->is_open)
906 gmethod->inst = mono_metadata_inflate_generic_inst (gmethod->inst, context);
908 if (!container->method_hash)
909 container->method_hash = g_hash_table_new (
910 (GHashFunc)mono_metadata_generic_method_hash, (GEqualFunc)mono_metadata_generic_method_equal);
912 inflated = g_hash_table_lookup (container->method_hash, gmethod);
915 g_free (new_context);
919 context = new_context;
921 mono_stats.generics_metadata_size += sizeof (MonoGenericMethod) +
922 sizeof (MonoGenericContext) + param_count * sizeof (MonoType);
924 inflated = mono_class_inflate_generic_method_full (method, method->klass, new_context);
925 g_hash_table_insert (container->method_hash, gmethod, inflated);
930 typedef struct MonoDllMap MonoDllMap;
939 static GHashTable *global_dll_map;
942 mono_dllmap_lookup_hash (GHashTable *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
943 MonoDllMap *map, *tmp;
952 map = g_hash_table_lookup (dll_map, dll);
954 mono_loader_unlock ();
957 *rdll = map->target? map->target: dll;
959 for (tmp = map->next; tmp; tmp = tmp->next) {
960 if (strcmp (func, tmp->name) == 0) {
964 mono_loader_unlock ();
969 mono_loader_unlock ();
974 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
977 if (assembly && assembly->dll_map) {
978 res = mono_dllmap_lookup_hash (assembly->dll_map, dll, func, rdll, rfunc);
982 return mono_dllmap_lookup_hash (global_dll_map, dll, func, rdll, rfunc);
986 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
987 MonoDllMap *map, *entry;
988 GHashTable *dll_map = NULL;
994 global_dll_map = g_hash_table_new (g_str_hash, g_str_equal);
995 dll_map = global_dll_map;
997 if (!assembly->dll_map)
998 assembly->dll_map = g_hash_table_new (g_str_hash, g_str_equal);
999 dll_map = assembly->dll_map;
1002 map = g_hash_table_lookup (dll_map, dll);
1004 map = g_new0 (MonoDllMap, 1);
1005 map->dll = g_strdup (dll);
1007 map->target = g_strdup (tdll);
1008 g_hash_table_insert (dll_map, map->dll, map);
1011 entry = g_new0 (MonoDllMap, 1);
1012 entry->name = g_strdup (func);
1014 entry->target = g_strdup (tfunc);
1015 if (tdll && map->target && strcmp (map->target, tdll))
1016 entry->dll = g_strdup (tdll);
1017 entry->next = map->next;
1021 mono_loader_unlock ();
1025 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1027 MonoImage *image = method->klass->image;
1028 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1029 MonoTableInfo *tables = image->tables;
1030 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1031 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1032 guint32 im_cols [MONO_IMPLMAP_SIZE];
1033 guint32 scope_token;
1034 const char *import = NULL;
1035 const char *orig_scope;
1036 const char *new_scope;
1037 char *full_name, *file_name;
1039 GModule *gmodule = NULL;
1041 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1044 return piinfo->addr;
1046 if (method->klass->image->dynamic) {
1047 MonoReflectionMethodAux *method_aux =
1048 g_hash_table_lookup (
1049 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1053 import = method_aux->dllentry;
1054 orig_scope = method_aux->dll;
1057 if (!piinfo->implmap_idx)
1060 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1062 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1063 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1064 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1065 orig_scope = mono_metadata_string_heap (image, scope_token);
1068 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1070 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1071 "DllImport attempting to load: '%s'.", new_scope);
1078 /* we allow a special name to dlopen from the running process namespace */
1079 if (strcmp (new_scope, "__Internal") == 0)
1080 gmodule = g_module_open (NULL, G_MODULE_BIND_LAZY);
1083 * Try loading the module using a variety of names
1085 for (i = 0; i < 4; ++i) {
1088 /* Try the original name */
1089 file_name = g_strdup (new_scope);
1092 /* Try trimming the .dll extension */
1093 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1094 file_name = g_strdup (new_scope);
1095 file_name [strlen (new_scope) - 4] = '\0';
1101 if (strstr (new_scope, "lib") != new_scope) {
1102 file_name = g_strdup_printf ("lib%s", new_scope);
1108 #ifndef PLATFORM_WIN32
1109 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1110 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1111 !g_ascii_strcasecmp ("user32", new_scope) ||
1112 !g_ascii_strcasecmp ("kernel", new_scope)) {
1113 file_name = g_strdup ("libMonoSupportW.so");
1117 #ifndef PLATFORM_WIN32
1123 full_name = g_module_build_path (NULL, file_name);
1124 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1125 "DllImport loading location: '%s'.", full_name);
1126 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
1128 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1129 "DllImport error loading library: '%s'.",
1136 full_name = g_module_build_path (".", file_name);
1137 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1138 "DllImport loading library: '%s'.", full_name);
1139 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
1141 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1142 "DllImport error loading library '%s'.",
1149 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1150 "DllImport loading: '%s'.", file_name);
1151 gmodule=g_module_open (file_name, G_MODULE_BIND_LAZY);
1153 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1154 "DllImport error loading library '%s'.",
1166 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1167 "DllImport unable to load library '%s'.",
1171 *exc_class = "DllNotFoundException";
1172 *exc_arg = new_scope;
1177 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1178 "Searching for '%s'.", import);
1180 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1181 g_module_symbol (gmodule, import, &piinfo->addr);
1183 char *mangled_name = NULL, *mangled_name2 = NULL;
1186 int mangle_param_count;
1187 #ifdef PLATFORM_WIN32
1192 * Search using a variety of mangled names
1194 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1195 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1196 gboolean need_param_count = FALSE;
1197 #ifdef PLATFORM_WIN32
1198 if (mangle_stdcall > 0)
1199 need_param_count = TRUE;
1201 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1206 mangled_name = (char*)import;
1207 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1208 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1209 /* Try the mangled name first */
1210 if (mangle_charset == 0)
1211 mangled_name = g_strconcat (import, "W", NULL);
1213 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1214 #ifdef PLATFORM_WIN32
1215 if (mangle_charset == 0)
1216 mangled_name = g_strconcat (import, "W", NULL);
1218 /* Try the mangled name last */
1219 if (mangle_charset == 1)
1220 mangled_name = g_strconcat (import, "A", NULL);
1223 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1225 /* Try the mangled name last */
1226 if (mangle_charset == 1)
1227 mangled_name = g_strconcat (import, "A", NULL);
1231 #ifdef PLATFORM_WIN32
1232 if (mangle_param_count == 0)
1233 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1235 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1236 param_count = mangle_param_count;
1238 /* Try the stdcall mangled name */
1240 * gcc under windows creates mangled names without the underscore, but MS.NET
1241 * doesn't support it, so we doesn't support it either.
1243 if (mangle_stdcall == 1)
1244 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1246 mangled_name2 = mangled_name;
1248 mangled_name2 = mangled_name;
1251 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1252 "Probing '%s'.", mangled_name2);
1254 g_module_symbol (gmodule, mangled_name2, &piinfo->addr);
1257 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1258 "Found as '%s'.", mangled_name2);
1260 if (mangled_name != mangled_name2)
1261 g_free (mangled_name2);
1262 if (mangled_name != import)
1263 g_free (mangled_name);
1269 if (!piinfo->addr) {
1271 *exc_class = "EntryPointNotFoundException";
1276 return piinfo->addr;
1280 mono_get_shared_generic_method (MonoGenericContainer *container)
1282 MonoGenericMethod *gmethod = g_new0 (MonoGenericMethod, 1);
1283 gmethod->container = container;
1284 gmethod->generic_class = container->context.gclass;
1285 gmethod->inst = mono_get_shared_generic_inst (container);
1291 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1292 MonoGenericContext *context)
1295 int table = mono_metadata_token_table (token);
1296 int idx = mono_metadata_token_index (token);
1297 MonoTableInfo *tables = image->tables;
1298 MonoGenericContainer *generic_container = NULL, *container = NULL;
1299 const char *sig = NULL;
1301 guint32 cols [MONO_TYPEDEF_SIZE];
1304 return mono_lookup_dynamic_token (image, token);
1306 if (table != MONO_TABLE_METHOD) {
1307 if (table == MONO_TABLE_METHODSPEC)
1308 return method_from_methodspec (image, context, idx);
1309 if (table != MONO_TABLE_MEMBERREF)
1310 g_print("got wrong token: 0x%08x\n", token);
1311 g_assert (table == MONO_TABLE_MEMBERREF);
1312 result = method_from_memberref (image, idx, context);
1317 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1319 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1320 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
1321 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodPInvoke));
1323 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodNormal));
1325 mono_stats.method_count ++;
1328 guint32 type = mono_metadata_typedef_from_method (image, token);
1329 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
1335 result->klass = klass;
1336 result->flags = cols [2];
1337 result->iflags = cols [1];
1338 result->token = token;
1339 result->name = mono_metadata_string_heap (image, cols [3]);
1341 container = klass->generic_container;
1342 generic_container = mono_metadata_load_generic_params (image, token, container);
1343 if (generic_container) {
1344 MonoGenericContext *context = &generic_container->context;
1346 context->gclass = container->context.gclass;
1347 context->gmethod = mono_get_shared_generic_method (generic_container);
1348 mono_metadata_load_generic_param_constraints (image, token, generic_container);
1350 for (i = 0; i < generic_container->type_argc; i++) {
1351 generic_container->type_params [i].method = result;
1353 mono_class_from_generic_parameter (
1354 &generic_container->type_params [i], image, TRUE);
1357 container = generic_container;
1360 if (!sig) /* already taken from the methodref */
1361 sig = mono_metadata_blob_heap (image, cols [4]);
1362 size = mono_metadata_decode_blob_size (sig, &sig);
1364 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1365 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1366 result->string_ctor = 1;
1367 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1368 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1369 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1371 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1372 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1375 /* FIXME: lazyness for generics too, but how? */
1376 if (!(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
1377 !(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
1378 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
1379 gpointer loc = mono_image_rva_map (image, cols [0]);
1381 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (image, container, loc);
1384 result->generic_container = generic_container;
1390 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1392 return mono_get_method_full (image, token, klass, NULL);
1396 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1397 MonoGenericContext *context)
1401 /* We do everything inside the lock to prevent creation races */
1403 mono_loader_lock ();
1405 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
1406 mono_loader_unlock ();
1410 result = mono_get_method_from_token (image, token, klass, context);
1412 //printf ("GET: %s\n", mono_method_full_name (result, TRUE));
1414 if (!(result && result->is_inflated))
1415 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
1417 mono_loader_unlock ();
1423 * mono_get_method_constrained:
1425 * This is used when JITing the `constrained.' opcode.
1427 * This returns two values: the contrained method, which has been inflated
1428 * as the function return value; And the original CIL-stream method as
1429 * declared in cil_method. The later is used for verification.
1432 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1433 MonoGenericContext *context, MonoMethod **cil_method)
1435 MonoMethod *method, *result;
1436 MonoClass *ic = NULL;
1437 MonoGenericContext *class_context = NULL, *method_context = NULL;
1438 MonoMethodSignature *sig;
1440 mono_loader_lock ();
1442 *cil_method = mono_get_method_from_token (image, token, NULL, context);
1444 mono_loader_unlock ();
1448 mono_class_init (constrained_class);
1449 method = mono_get_inflated_method (*cil_method);
1450 sig = mono_method_signature (method);
1452 if (method->is_inflated && sig->generic_param_count) {
1453 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1454 sig = mono_method_signature (imethod->declaring);
1455 method_context = imethod->context;
1458 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1461 if (constrained_class->generic_class)
1462 class_context = constrained_class->generic_class->context;
1464 result = find_method (constrained_class, ic, method->name, sig, constrained_class);
1466 g_warning ("Missing method %s.%s.%s in assembly %s token %x", method->klass->name_space,
1467 method->klass->name, method->name, image->name, token);
1468 mono_loader_unlock ();
1473 result = mono_class_inflate_generic_method (result, class_context);
1475 result = mono_class_inflate_generic_method (result, method_context);
1477 mono_loader_unlock ();
1482 mono_free_method (MonoMethod *method)
1484 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
1487 if (method->signature) {
1489 * FIXME: This causes crashes because the types inside signatures and
1490 * locals are shared.
1492 /* mono_metadata_free_method_signature (method->signature); */
1493 /* g_free (method->signature); */
1496 if (method->dynamic) {
1497 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1499 g_free ((char*)method->name);
1500 if (mw->method.header)
1501 g_free ((char*)mw->method.header->code);
1502 g_free (mw->method_data);
1505 if (method->dynamic && !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && ((MonoMethodNormal *)method)->header) {
1507 /* mono_metadata_free_mh (((MonoMethodNormal *)method)->header); */
1508 g_free (((MonoMethodNormal*)method)->header);
1511 if (method->dynamic)
1516 mono_method_get_param_names (MonoMethod *method, const char **names)
1519 MonoClass *klass = method->klass;
1520 MonoTableInfo *methodt;
1521 MonoTableInfo *paramt;
1524 if (!mono_method_signature (method)->param_count)
1526 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1529 if (klass->generic_class || klass->rank) /* copy the names later */
1532 mono_class_init (klass);
1534 if (klass->image->dynamic) {
1535 MonoReflectionMethodAux *method_aux =
1536 g_hash_table_lookup (
1537 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1538 if (method_aux && method_aux->param_names) {
1539 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1540 if (method_aux->param_names [i + 1])
1541 names [i] = method_aux->param_names [i + 1];
1546 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1547 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1548 idx = mono_method_get_index (method);
1550 guint32 cols [MONO_PARAM_SIZE];
1553 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1555 if (idx < methodt->rows)
1556 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1558 lastp = paramt->rows + 1;
1559 for (i = param_index; i < lastp; ++i) {
1560 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1561 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1562 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1569 mono_method_get_param_token (MonoMethod *method, int index)
1571 MonoClass *klass = method->klass;
1572 MonoTableInfo *methodt;
1575 if (klass->generic_class)
1576 g_assert_not_reached ();
1578 mono_class_init (klass);
1580 if (klass->image->dynamic) {
1581 g_assert_not_reached ();
1584 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1585 idx = mono_method_get_index (method);
1587 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1589 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1596 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1599 MonoClass *klass = method->klass;
1600 MonoTableInfo *methodt;
1601 MonoTableInfo *paramt;
1604 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1607 if (method->klass->image->dynamic) {
1608 MonoReflectionMethodAux *method_aux =
1609 g_hash_table_lookup (
1610 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1611 if (method_aux && method_aux->param_marshall) {
1612 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1613 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1614 if (dyn_specs [i]) {
1615 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1616 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1622 mono_class_init (klass);
1624 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1625 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1626 idx = mono_method_get_index (method);
1628 guint32 cols [MONO_PARAM_SIZE];
1629 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1631 if (idx < methodt->rows)
1632 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1634 lastp = paramt->rows + 1;
1636 for (i = param_index; i < lastp; ++i) {
1637 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1639 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1641 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1643 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1652 mono_method_has_marshal_info (MonoMethod *method)
1655 MonoClass *klass = method->klass;
1656 MonoTableInfo *methodt;
1657 MonoTableInfo *paramt;
1660 if (method->klass->image->dynamic) {
1661 MonoReflectionMethodAux *method_aux =
1662 g_hash_table_lookup (
1663 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1664 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1666 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1673 mono_class_init (klass);
1675 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1676 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1677 idx = mono_method_get_index (method);
1679 guint32 cols [MONO_PARAM_SIZE];
1680 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1682 if (idx + 1 < methodt->rows)
1683 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1685 lastp = paramt->rows + 1;
1687 for (i = param_index; i < lastp; ++i) {
1688 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1690 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1699 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1702 g_assert (method != NULL);
1703 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1705 data = ((MonoMethodWrapper *)method)->method_data;
1706 g_assert (data != NULL);
1707 g_assert (id <= GPOINTER_TO_UINT (*data));
1712 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1713 g_error ("stack walk not installed");
1716 static MonoStackWalkImpl stack_walk = default_stack_walk;
1719 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1721 stack_walk (func, TRUE, user_data);
1725 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1727 stack_walk (func, FALSE, user_data);
1731 mono_install_stack_walk (MonoStackWalkImpl func)
1737 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1739 MonoMethod **dest = data;
1741 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1747 mono_method_get_last_managed (void)
1749 MonoMethod *m = NULL;
1750 stack_walk (last_managed, FALSE, &m);
1755 mono_loader_lock (void)
1757 EnterCriticalSection (&loader_mutex);
1761 mono_loader_unlock (void)
1763 LeaveCriticalSection (&loader_mutex);
1767 * mono_method_signature:
1769 * Return the signature of the method M. On failure, returns NULL.
1771 MonoMethodSignature*
1772 mono_method_signature (MonoMethod *m)
1778 gboolean can_cache_signature;
1779 MonoGenericContainer *container;
1783 return m->signature;
1785 mono_loader_lock ();
1788 mono_loader_unlock ();
1789 return m->signature;
1792 if (m->is_inflated) {
1793 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
1794 MonoMethodSignature *signature;
1795 /* the lock is recursive */
1796 signature = mono_method_signature (imethod->declaring);
1797 m->signature = inflate_generic_signature (imethod->declaring->klass->image, signature, imethod->context);
1798 mono_loader_unlock ();
1799 return m->signature;
1802 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
1803 idx = mono_metadata_token_index (m->token);
1804 img = m->klass->image;
1806 sig = mono_metadata_blob_heap (img, mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
1808 g_assert (!m->klass->generic_class);
1809 container = m->generic_container;
1811 container = m->klass->generic_container;
1813 /* Generic signatures depend on the container so they cannot be cached */
1814 /* icall/pinvoke signatures cannot be cached cause we modify them below */
1815 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
1817 /* If the method has parameter attributes, that can modify the signature */
1818 pattrs = mono_metadata_get_param_attrs (img, idx);
1820 can_cache_signature = FALSE;
1824 if (can_cache_signature)
1825 m->signature = g_hash_table_lookup (img->method_signatures, sig);
1827 if (!m->signature) {
1828 const char *sig_body;
1830 size = mono_metadata_decode_blob_size (sig, &sig_body);
1832 m->signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL);
1833 if (!m->signature) {
1834 mono_loader_unlock ();
1838 if (can_cache_signature)
1839 g_hash_table_insert (img->method_signatures, (gpointer)sig, m->signature);
1842 /* Verify metadata consistency */
1843 if (m->signature->generic_param_count) {
1844 if (!container || !container->is_method)
1845 g_error ("Signature claims method has generic parameters, but generic_params table says it doesn't");
1846 if (container->type_argc != m->signature->generic_param_count)
1847 g_error ("Inconsistent generic parameter count. Signature says %d, generic_params table says %d",
1848 m->signature->generic_param_count, container->type_argc);
1849 } else if (container && container->is_method && container->type_argc)
1850 g_error ("generic_params table claims method has generic parameters, but signature says it doesn't");
1852 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
1853 m->signature->pinvoke = 1;
1854 else if ((m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(m->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1855 MonoCallConvention conv = 0;
1856 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
1857 m->signature->pinvoke = 1;
1859 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
1860 case 0: /* no call conv, so using default */
1861 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
1862 conv = MONO_CALL_DEFAULT;
1864 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
1867 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
1868 conv = MONO_CALL_STDCALL;
1870 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
1871 conv = MONO_CALL_THISCALL;
1873 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
1874 conv = MONO_CALL_FASTCALL;
1876 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
1877 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
1879 g_warning ("unsupported calling convention : 0x%04x", piinfo->piflags);
1880 g_assert_not_reached ();
1882 m->signature->call_convention = conv;
1885 mono_loader_unlock ();
1886 return m->signature;
1890 mono_method_get_name (MonoMethod *method)
1892 return method->name;
1896 mono_method_get_class (MonoMethod *method)
1898 return method->klass;
1902 mono_method_get_token (MonoMethod *method)
1904 return method->token;
1908 mono_method_get_header (MonoMethod *method)
1914 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1916 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))
1920 if (G_LIKELY (mn->header))
1926 mono_loader_lock ();
1929 mono_loader_unlock ();
1933 if (method->is_inflated) {
1934 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1935 MonoMethodHeader *header;
1936 /* the lock is recursive */
1937 header = mono_method_get_header (imethod->declaring);
1938 mn->header = inflate_generic_header (header, imethod->context);
1939 mono_loader_unlock ();
1943 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1944 idx = mono_metadata_token_index (method->token);
1945 img = method->klass->image;
1946 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1947 loc = mono_image_rva_map (img, rva);
1951 mn->header = mono_metadata_parse_mh_full (img, method->generic_container, loc);
1953 mono_loader_unlock ();
1958 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1961 *iflags = method->iflags;
1962 return method->flags;
1966 * Find the method index in the metadata methodDef table.
1969 mono_method_get_index (MonoMethod *method) {
1970 MonoClass *klass = method->klass;
1974 return mono_metadata_token_index (method->token);
1976 mono_class_setup_methods (klass);
1977 for (i = 0; i < klass->method.count; ++i) {
1978 if (method == klass->methods [i]) {
1979 if (klass->image->uncompressed_metadata)
1980 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
1982 return klass->method.first + i + 1;