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/cil-coff.h>
30 #include <mono/metadata/tabledefs.h>
31 #include <mono/metadata/metadata-internals.h>
32 #include <mono/metadata/loader.h>
33 #include <mono/metadata/class-internals.h>
34 #include <mono/metadata/debug-helpers.h>
35 #include <mono/metadata/reflection.h>
36 #include <mono/metadata/profiler.h>
37 #include <mono/utils/mono-logger.h>
38 #include <mono/utils/mono-dl.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 mono_loader_clear_error ();
290 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), error->assembly_name));
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_TYPEDEF:
333 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | 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_TYPEREF:
346 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
348 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
349 g_warning ("Missing field %s in class %s (typeref index %d)", fname, name, nindex);
353 mono_class_init (klass);
356 field = mono_class_get_field_from_name (klass, fname);
358 case MONO_MEMBERREF_PARENT_TYPESPEC: {
359 /*guint32 bcols [MONO_TYPESPEC_SIZE];
363 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
364 bcols, MONO_TYPESPEC_SIZE);
365 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
366 len = mono_metadata_decode_value (ptr, &ptr);
367 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
369 klass = mono_class_from_mono_type (type);
370 mono_class_init (klass);
371 g_print ("type in sig: %s\n", klass->name);*/
372 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
373 mono_class_init (klass);
376 field = mono_class_get_field_from_name (klass, fname);
380 g_warning ("field load from %x", class);
385 mono_loader_set_error_field_load (klass, fname);
391 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
392 MonoGenericContext *context)
396 MonoClassField *field;
398 if (image->dynamic) {
399 MonoClassField *result = mono_lookup_dynamic_token (image, token);
400 *retklass = result->parent;
405 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
406 *retklass = field->parent;
407 mono_loader_unlock ();
410 mono_loader_unlock ();
412 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
413 field = field_from_memberref (image, token, retklass, context);
415 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
418 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
424 field = mono_class_get_field (k, token);
428 if (field && !field->parent->generic_class)
429 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
430 mono_loader_unlock ();
435 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
439 if (sig1->hasthis != sig2->hasthis ||
440 sig1->sentinelpos != sig2->sentinelpos)
443 for (i = 0; i < sig1->sentinelpos; i++) {
444 MonoType *p1 = sig1->params[i];
445 MonoType *p2 = sig2->params[i];
447 /*if (p1->attrs != p2->attrs)
450 if (!mono_metadata_type_equal (p1, p2))
454 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
460 find_method_in_class (MonoClass *in_class, const char *name, const char *qname, const char *fqname,
461 MonoMethodSignature *sig, MonoClass *from_class)
465 mono_class_setup_methods (in_class);
466 for (i = 0; i < in_class->method.count; ++i) {
467 MonoMethod *m = in_class->methods [i];
469 if (!((fqname && !strcmp (m->name, fqname)) ||
470 (qname && !strcmp (m->name, qname)) || !strcmp (m->name, name)))
473 if (sig->call_convention == MONO_CALL_VARARG) {
474 if (mono_metadata_signature_vararg_match (sig, mono_method_signature (m)))
477 if (mono_metadata_signature_equal (sig, mono_method_signature (m)))
482 if (i < in_class->method.count) {
483 mono_class_setup_methods (from_class);
484 g_assert (from_class->method.count == in_class->method.count);
485 return from_class->methods [i];
491 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class)
494 char *qname, *fqname, *class_name;
495 gboolean is_interface;
496 MonoMethod *result = NULL;
498 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
501 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
503 qname = g_strconcat (class_name, ".", name, NULL);
504 if (ic->name_space && ic->name_space [0])
505 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
509 class_name = qname = fqname = NULL;
512 g_assert (from_class);
513 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class);
517 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
520 g_assert (from_class->interface_count == in_class->interface_count);
521 for (i = 0; i < in_class->interface_count; i++) {
522 MonoClass *ic = in_class->interfaces [i];
523 MonoClass *from_ic = from_class->interfaces [i];
525 result = find_method_in_class (ic, name, qname, fqname, sig, from_ic);
530 in_class = in_class->parent;
531 from_class = from_class->parent;
533 g_assert (!in_class == !from_class);
536 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class);
545 static MonoMethodSignature*
546 inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context)
548 MonoMethodSignature *res;
555 res = mono_metadata_signature_alloc (image, sig->param_count);
556 res->ret = mono_class_inflate_generic_type (sig->ret, context);
557 is_open = mono_class_is_open_constructed_type (res->ret);
558 for (i = 0; i < sig->param_count; ++i) {
559 res->params [i] = mono_class_inflate_generic_type (sig->params [i], context);
561 is_open = mono_class_is_open_constructed_type (res->params [i]);
563 res->hasthis = sig->hasthis;
564 res->explicit_this = sig->explicit_this;
565 res->call_convention = sig->call_convention;
566 res->pinvoke = sig->pinvoke;
567 res->generic_param_count = sig->generic_param_count;
568 res->sentinelpos = sig->sentinelpos;
569 res->has_type_parameters = is_open;
570 res->is_inflated = 1;
574 static MonoMethodHeader*
575 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
577 MonoMethodHeader *res;
579 res = g_malloc0 (sizeof (MonoMethodHeader) + sizeof (gpointer) * header->num_locals);
580 res->code = header->code;
581 res->code_size = header->code_size;
582 res->max_stack = header->max_stack;
583 res->num_clauses = header->num_clauses;
584 res->init_locals = header->init_locals;
585 res->num_locals = header->num_locals;
586 res->clauses = header->clauses;
587 for (i = 0; i < header->num_locals; ++i)
588 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
589 if (res->num_clauses) {
590 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
591 for (i = 0; i < header->num_clauses; ++i) {
592 MonoExceptionClause *clause = &res->clauses [i];
594 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
596 t = mono_class_inflate_generic_type (&clause->data.catch_class->byval_arg, context);
597 clause->data.catch_class = mono_class_from_mono_type (t);
604 * token is the method_ref or method_def token used in a call IL instruction.
607 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
609 int table = mono_metadata_token_table (token);
610 int idx = mono_metadata_token_index (token);
611 guint32 cols [MONO_MEMBERREF_SIZE];
612 MonoMethodSignature *sig, *prev_sig;
615 /* !table is for wrappers: we should really assign their own token to them */
616 if (!table || table == MONO_TABLE_METHOD)
617 return mono_method_signature (method);
619 if (table == MONO_TABLE_METHODSPEC) {
620 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
621 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
622 mono_method_signature (method));
623 g_assert (method->is_inflated);
625 return mono_method_signature (method);
628 if (method->klass->generic_class)
629 return mono_method_signature (method);
632 /* FIXME: This might be incorrect for vararg methods */
633 return mono_method_signature (method);
636 sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
637 mono_loader_unlock ();
639 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
641 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
642 mono_metadata_decode_blob_size (ptr, &ptr);
643 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
646 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
648 /* Somebody got in before us */
649 /* FIXME: Free sig */
653 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
654 mono_loader_unlock ();
657 sig = inflate_generic_signature (image, sig, context);
663 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
665 return mono_method_get_signature_full (method, image, token, NULL);
668 /* this is only for the typespec array methods */
670 search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
673 for (i = 0; i < klass->method.count; ++i) {
674 MonoMethod *method = klass->methods [i];
675 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
682 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context)
684 MonoClass *klass = NULL;
685 MonoMethod *method = NULL;
686 MonoTableInfo *tables = image->tables;
688 guint32 nindex, class;
690 MonoMethodSignature *sig;
693 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
694 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
695 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
696 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
697 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
699 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
702 case MONO_MEMBERREF_PARENT_TYPEREF:
703 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
705 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
706 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
707 mono_loader_set_error_method_load (name, mname);
712 case MONO_MEMBERREF_PARENT_TYPESPEC:
714 * Parse the TYPESPEC in the parent's context.
716 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context);
718 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_SPEC | nindex);
719 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
720 mono_loader_set_error_method_load (name, mname);
725 case MONO_MEMBERREF_PARENT_TYPEDEF:
726 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
728 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | 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_METHODDEF:
736 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
740 /* This message leaks */
741 char *message = g_strdup_printf ("Memberref parent unknown: class: %d, index %d", class, nindex);
742 mono_loader_set_error_method_load ("", message);
748 mono_class_init (klass);
750 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
751 mono_metadata_decode_blob_size (ptr, &ptr);
753 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
758 case MONO_MEMBERREF_PARENT_TYPEREF:
759 case MONO_MEMBERREF_PARENT_TYPEDEF:
760 method = find_method (klass, NULL, mname, sig, klass);
763 case MONO_MEMBERREF_PARENT_TYPESPEC: {
767 type = &klass->byval_arg;
769 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
770 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
771 method = find_method (in_class, NULL, mname, sig, klass);
775 /* we're an array and we created these methods already in klass in mono_class_init () */
776 result = search_in_array_class (klass, mname, sig);
780 g_assert_not_reached ();
784 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
785 g_assert_not_reached ();
789 char *msig = mono_signature_get_desc (sig, FALSE);
790 char * class_name = mono_type_get_name (&klass->byval_arg);
791 GString *s = g_string_new (mname);
792 if (sig->generic_param_count)
793 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
794 g_string_append_printf (s, "(%s)", msig);
796 msig = g_string_free (s, FALSE);
799 "Missing method %s::%s in assembly %s, referenced in assembly %s",
800 class_name, msig, klass->image->name, image->name);
801 mono_loader_set_error_method_load (class_name, mname);
805 mono_metadata_free_method_signature (sig);
811 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
813 MonoMethod *method, *inflated;
814 MonoTableInfo *tables = image->tables;
815 MonoGenericContext *new_context = NULL;
816 MonoGenericMethod *gmethod;
817 MonoGenericContainer *container = NULL;
819 guint32 cols [MONO_METHODSPEC_SIZE];
820 guint32 token, nindex, param_count;
822 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
823 token = cols [MONO_METHODSPEC_METHOD];
824 nindex = token >> MONO_METHODDEFORREF_BITS;
826 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
828 mono_metadata_decode_value (ptr, &ptr);
830 param_count = mono_metadata_decode_value (ptr, &ptr);
831 g_assert (param_count);
834 * Be careful with the two contexts here:
836 * ----------------------------------------
838 * static void Hello<T> (S s, T t) { }
840 * static void Test<U> (U u) {
841 * Foo<U>.Hello<string> (u, "World");
844 * ----------------------------------------
846 * Let's assume we're currently JITing Foo<int>.Test<long>
847 * (ie. `S' is instantiated as `int' and `U' is instantiated as `long').
849 * The call to Hello() is encoded with a MethodSpec with a TypeSpec as parent
850 * (MONO_MEMBERREF_PARENT_TYPESPEC).
852 * The TypeSpec is encoded as `Foo<!!0>', so we need to parse it in the current
853 * context (S=int, U=long) to get the correct `Foo<long>'.
855 * After that, we parse the memberref signature in the new context
856 * (S=int, T=uninstantiated) and get the open generic method `Foo<long>.Hello<T>'.
859 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
860 method = mono_get_method_full (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context);
862 method = method_from_memberref (image, nindex, context);
864 method = mono_get_inflated_method (method);
866 container = method->generic_container;
867 g_assert (container);
869 gmethod = g_new0 (MonoGenericMethod, 1);
870 if (method->klass->generic_class)
871 gmethod->class_inst = method->klass->generic_class->inst;
872 gmethod->container = container;
874 new_context = g_new0 (MonoGenericContext, 1);
875 new_context->gmethod = gmethod;
876 /* FIXME: Is this correct? */
877 if (container->parent)
878 new_context->class_inst = container->parent->context.class_inst;
881 * When parsing the methodspec signature, we're in the old context again:
883 * ----------------------------------------
885 * static void Hello<T> (T t) { }
887 * static void Test<U> (U u) {
891 * ----------------------------------------
893 * Let's assume we're currently JITing "Foo.Test<float>".
895 * In this case, we already parsed the memberref as "Foo.Hello<T>" and the methodspec
896 * signature is "<!!0>". This means that we must instantiate the method type parameter
897 * `T' from the new method with the method type parameter `U' from the current context;
898 * ie. instantiate the method as `Foo.Hello<float>.
901 gmethod->inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr);
903 if (context && gmethod->inst->is_open)
904 gmethod->inst = mono_metadata_inflate_generic_inst (gmethod->inst, context);
906 if (!container->method_hash)
907 container->method_hash = g_hash_table_new (
908 (GHashFunc)mono_metadata_generic_method_hash, (GEqualFunc)mono_metadata_generic_method_equal);
910 inflated = g_hash_table_lookup (container->method_hash, gmethod);
913 g_free (new_context);
917 context = new_context;
919 mono_stats.generics_metadata_size += sizeof (MonoGenericMethod) +
920 sizeof (MonoGenericContext) + param_count * sizeof (MonoType);
922 inflated = mono_class_inflate_generic_method_full (method, method->klass, new_context);
923 g_hash_table_insert (container->method_hash, gmethod, inflated);
936 static MonoDllMap *global_dll_map;
939 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
950 * we use the first entry we find that matches, since entries from
951 * the config file are prepended to the list and we document that the
954 for (; dll_map; dll_map = dll_map->next) {
955 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
956 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
958 } else if (strcmp (dll_map->dll, dll)) {
961 if (!found && dll_map->target) {
962 *rdll = dll_map->target;
964 /* we don't quit here, because we could find a full
965 * entry that matches also function and that has priority.
968 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
969 *rfunc = dll_map->target_func;
974 mono_loader_unlock ();
979 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
982 if (assembly && assembly->dll_map) {
983 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
987 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
991 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
997 entry = g_malloc0 (sizeof (MonoDllMap));
998 entry->dll = dll? g_strdup (dll): NULL;
999 entry->target = tdll? g_strdup (tdll): NULL;
1000 entry->func = func? g_strdup (func): NULL;
1001 entry->target_func = tfunc? g_strdup (tfunc): NULL;
1002 entry->next = global_dll_map;
1003 global_dll_map = entry;
1005 MonoMemPool *mpool = assembly->mempool;
1006 entry = mono_mempool_alloc0 (mpool, sizeof (MonoDllMap));
1007 entry->dll = dll? mono_mempool_strdup (mpool, dll): NULL;
1008 entry->target = tdll? mono_mempool_strdup (mpool, tdll): NULL;
1009 entry->func = func? mono_mempool_strdup (mpool, func): NULL;
1010 entry->target_func = tfunc? mono_mempool_strdup (mpool, tfunc): NULL;
1011 entry->next = assembly->dll_map;
1012 assembly->dll_map = entry;
1015 mono_loader_unlock ();
1018 static GHashTable *global_module_map;
1021 cached_module_load (const char *name, int flags, char **err)
1024 mono_loader_lock ();
1025 if (!global_module_map)
1026 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1027 res = g_hash_table_lookup (global_module_map, name);
1030 mono_loader_unlock ();
1033 res = mono_dl_open (name, flags, err);
1035 g_hash_table_insert (global_module_map, g_strdup (name), res);
1036 mono_loader_unlock ();
1041 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1043 MonoImage *image = method->klass->image;
1044 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1045 MonoTableInfo *tables = image->tables;
1046 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1047 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1048 guint32 im_cols [MONO_IMPLMAP_SIZE];
1049 guint32 scope_token;
1050 const char *import = NULL;
1051 const char *orig_scope;
1052 const char *new_scope;
1054 char *full_name, *file_name;
1056 MonoDl *module = NULL;
1058 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1061 return piinfo->addr;
1063 if (method->klass->image->dynamic) {
1064 MonoReflectionMethodAux *method_aux =
1065 g_hash_table_lookup (
1066 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1070 import = method_aux->dllentry;
1071 orig_scope = method_aux->dll;
1074 if (!piinfo->implmap_idx)
1077 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1079 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1080 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1081 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1082 orig_scope = mono_metadata_string_heap (image, scope_token);
1085 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1087 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1088 "DllImport attempting to load: '%s'.", new_scope);
1095 /* we allow a special name to dlopen from the running process namespace */
1096 if (strcmp (new_scope, "__Internal") == 0)
1097 module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1100 * Try loading the module using a variety of names
1102 for (i = 0; i < 4; ++i) {
1105 /* Try the original name */
1106 file_name = g_strdup (new_scope);
1109 /* Try trimming the .dll extension */
1110 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1111 file_name = g_strdup (new_scope);
1112 file_name [strlen (new_scope) - 4] = '\0';
1118 if (strstr (new_scope, "lib") != new_scope) {
1119 file_name = g_strdup_printf ("lib%s", new_scope);
1125 #ifndef PLATFORM_WIN32
1126 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1127 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1128 !g_ascii_strcasecmp ("user32", new_scope) ||
1129 !g_ascii_strcasecmp ("kernel", new_scope)) {
1130 file_name = g_strdup ("libMonoSupportW.so");
1134 #ifndef PLATFORM_WIN32
1141 while ((full_name = mono_dl_build_path (NULL, file_name, &iter))) {
1142 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1143 "DllImport loading location: '%s'.", full_name);
1144 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1146 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1147 "DllImport error loading library: '%s'.",
1159 while ((full_name = mono_dl_build_path (".", file_name, &iter))) {
1160 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1161 "DllImport loading library: '%s'.", full_name);
1162 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1164 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1165 "DllImport error loading library '%s'.",
1176 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1177 "DllImport loading: '%s'.", file_name);
1178 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1180 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1181 "DllImport error loading library '%s'.",
1193 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1194 "DllImport unable to load library '%s'.",
1199 *exc_class = "DllNotFoundException";
1200 *exc_arg = new_scope;
1205 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1206 "Searching for '%s'.", import);
1208 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1209 error_msg = mono_dl_symbol (module, import, &piinfo->addr);
1211 char *mangled_name = NULL, *mangled_name2 = NULL;
1214 int mangle_param_count;
1215 #ifdef PLATFORM_WIN32
1220 * Search using a variety of mangled names
1222 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1223 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1224 gboolean need_param_count = FALSE;
1225 #ifdef PLATFORM_WIN32
1226 if (mangle_stdcall > 0)
1227 need_param_count = TRUE;
1229 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1234 mangled_name = (char*)import;
1235 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1236 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1237 /* Try the mangled name first */
1238 if (mangle_charset == 0)
1239 mangled_name = g_strconcat (import, "W", NULL);
1241 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1242 #ifdef PLATFORM_WIN32
1243 if (mangle_charset == 0)
1244 mangled_name = g_strconcat (import, "W", NULL);
1246 /* Try the mangled name last */
1247 if (mangle_charset == 1)
1248 mangled_name = g_strconcat (import, "A", NULL);
1251 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1253 /* Try the mangled name last */
1254 if (mangle_charset == 1)
1255 mangled_name = g_strconcat (import, "A", NULL);
1259 #ifdef PLATFORM_WIN32
1260 if (mangle_param_count == 0)
1261 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1263 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1264 param_count = mangle_param_count;
1266 /* Try the stdcall mangled name */
1268 * gcc under windows creates mangled names without the underscore, but MS.NET
1269 * doesn't support it, so we doesn't support it either.
1271 if (mangle_stdcall == 1)
1272 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1274 mangled_name2 = mangled_name;
1276 mangled_name2 = mangled_name;
1279 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1280 "Probing '%s'.", mangled_name2);
1282 error_msg = mono_dl_symbol (module, mangled_name2, &piinfo->addr);
1285 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1286 "Found as '%s'.", mangled_name2);
1288 if (mangled_name != mangled_name2)
1289 g_free (mangled_name2);
1290 if (mangled_name != import)
1291 g_free (mangled_name);
1297 if (!piinfo->addr) {
1300 *exc_class = "EntryPointNotFoundException";
1305 return piinfo->addr;
1309 mono_get_shared_generic_method (MonoGenericContainer *container)
1311 MonoGenericMethod *gmethod = g_new0 (MonoGenericMethod, 1);
1312 gmethod->container = container;
1313 gmethod->class_inst = container->context.class_inst;
1314 gmethod->inst = mono_get_shared_generic_inst (container);
1320 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1321 MonoGenericContext *context)
1324 int table = mono_metadata_token_table (token);
1325 int idx = mono_metadata_token_index (token);
1326 MonoTableInfo *tables = image->tables;
1327 MonoGenericContainer *generic_container = NULL, *container = NULL;
1328 const char *sig = NULL;
1330 guint32 cols [MONO_TYPEDEF_SIZE];
1333 return mono_lookup_dynamic_token (image, token);
1335 if (table != MONO_TABLE_METHOD) {
1336 if (table == MONO_TABLE_METHODSPEC)
1337 return method_from_methodspec (image, context, idx);
1338 if (table != MONO_TABLE_MEMBERREF)
1339 g_print("got wrong token: 0x%08x\n", token);
1340 g_assert (table == MONO_TABLE_MEMBERREF);
1341 result = method_from_memberref (image, idx, context);
1346 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1348 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1349 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
1350 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodPInvoke));
1352 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodNormal));
1354 mono_stats.method_count ++;
1357 guint32 type = mono_metadata_typedef_from_method (image, token);
1358 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
1364 result->klass = klass;
1365 result->flags = cols [2];
1366 result->iflags = cols [1];
1367 result->token = token;
1368 result->name = mono_metadata_string_heap (image, cols [3]);
1370 container = klass->generic_container;
1371 generic_container = mono_metadata_load_generic_params (image, token, container);
1372 if (generic_container) {
1373 MonoGenericContext *context;
1375 generic_container->owner.method = result;
1376 context = &generic_container->context;
1378 context->class_inst = container->context.class_inst;
1379 context->gmethod = mono_get_shared_generic_method (generic_container);
1381 mono_metadata_load_generic_param_constraints (image, token, generic_container);
1383 for (i = 0; i < generic_container->type_argc; i++)
1384 mono_class_from_generic_parameter (&generic_container->type_params [i], image, TRUE);
1386 container = generic_container;
1389 if (!sig) /* already taken from the methodref */
1390 sig = mono_metadata_blob_heap (image, cols [4]);
1391 size = mono_metadata_decode_blob_size (sig, &sig);
1393 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1394 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1395 result->string_ctor = 1;
1396 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1397 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1398 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1400 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1401 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1404 /* FIXME: lazyness for generics too, but how? */
1405 if (!(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
1406 !(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
1407 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
1408 gpointer loc = mono_image_rva_map (image, cols [0]);
1410 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (image, container, loc);
1413 result->generic_container = generic_container;
1419 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1421 return mono_get_method_full (image, token, klass, NULL);
1425 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1426 MonoGenericContext *context)
1430 /* We do everything inside the lock to prevent creation races */
1432 mono_loader_lock ();
1434 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
1435 mono_loader_unlock ();
1439 result = mono_get_method_from_token (image, token, klass, context);
1441 //printf ("GET: %s\n", mono_method_full_name (result, TRUE));
1443 if (!(result && result->is_inflated))
1444 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
1446 mono_loader_unlock ();
1452 * mono_get_method_constrained:
1454 * This is used when JITing the `constrained.' opcode.
1456 * This returns two values: the contrained method, which has been inflated
1457 * as the function return value; And the original CIL-stream method as
1458 * declared in cil_method. The later is used for verification.
1461 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1462 MonoGenericContext *context, MonoMethod **cil_method)
1464 MonoMethod *method, *result;
1465 MonoClass *ic = NULL;
1466 MonoGenericContext *class_context = NULL, *method_context = NULL;
1467 MonoMethodSignature *sig;
1469 mono_loader_lock ();
1471 *cil_method = mono_get_method_from_token (image, token, NULL, context);
1473 mono_loader_unlock ();
1477 mono_class_init (constrained_class);
1478 method = mono_get_inflated_method (*cil_method);
1479 sig = mono_method_signature (method);
1481 if (method->is_inflated && sig->generic_param_count) {
1482 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1483 sig = mono_method_signature (imethod->declaring);
1484 method_context = mono_method_get_context (method);
1487 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1490 if (constrained_class->generic_class)
1491 class_context = mono_class_get_context (constrained_class);
1493 result = find_method (constrained_class, ic, method->name, sig, constrained_class);
1495 g_warning ("Missing method %s.%s.%s in assembly %s token %x", method->klass->name_space,
1496 method->klass->name, method->name, image->name, token);
1497 mono_loader_unlock ();
1502 result = mono_class_inflate_generic_method (result, class_context);
1504 result = mono_class_inflate_generic_method (result, method_context);
1506 mono_loader_unlock ();
1511 mono_free_method (MonoMethod *method)
1513 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
1516 if (method->signature) {
1518 * FIXME: This causes crashes because the types inside signatures and
1519 * locals are shared.
1521 /* mono_metadata_free_method_signature (method->signature); */
1522 /* g_free (method->signature); */
1525 if (method->dynamic) {
1526 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1528 g_free ((char*)method->name);
1529 if (mw->method.header)
1530 g_free ((char*)mw->method.header->code);
1531 g_free (mw->method_data);
1534 if (method->dynamic && !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && ((MonoMethodNormal *)method)->header) {
1536 /* mono_metadata_free_mh (((MonoMethodNormal *)method)->header); */
1537 g_free (((MonoMethodNormal*)method)->header);
1540 if (method->dynamic)
1545 mono_method_get_param_names (MonoMethod *method, const char **names)
1548 MonoClass *klass = method->klass;
1549 MonoTableInfo *methodt;
1550 MonoTableInfo *paramt;
1553 if (!mono_method_signature (method)->param_count)
1555 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1558 if (klass->generic_class || klass->rank) /* copy the names later */
1561 mono_class_init (klass);
1563 if (klass->image->dynamic) {
1564 MonoReflectionMethodAux *method_aux =
1565 g_hash_table_lookup (
1566 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1567 if (method_aux && method_aux->param_names) {
1568 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1569 if (method_aux->param_names [i + 1])
1570 names [i] = method_aux->param_names [i + 1];
1575 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1576 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1577 idx = mono_method_get_index (method);
1579 guint32 cols [MONO_PARAM_SIZE];
1582 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1584 if (idx < methodt->rows)
1585 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1587 lastp = paramt->rows + 1;
1588 for (i = param_index; i < lastp; ++i) {
1589 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1590 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1591 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1598 mono_method_get_param_token (MonoMethod *method, int index)
1600 MonoClass *klass = method->klass;
1601 MonoTableInfo *methodt;
1604 if (klass->generic_class)
1605 g_assert_not_reached ();
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);
1618 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1625 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1628 MonoClass *klass = method->klass;
1629 MonoTableInfo *methodt;
1630 MonoTableInfo *paramt;
1633 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1636 if (method->klass->image->dynamic) {
1637 MonoReflectionMethodAux *method_aux =
1638 g_hash_table_lookup (
1639 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1640 if (method_aux && method_aux->param_marshall) {
1641 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1642 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1643 if (dyn_specs [i]) {
1644 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1645 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1651 mono_class_init (klass);
1653 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1654 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1655 idx = mono_method_get_index (method);
1657 guint32 cols [MONO_PARAM_SIZE];
1658 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1660 if (idx < methodt->rows)
1661 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1663 lastp = paramt->rows + 1;
1665 for (i = param_index; i < lastp; ++i) {
1666 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1668 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1670 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1672 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1681 mono_method_has_marshal_info (MonoMethod *method)
1684 MonoClass *klass = method->klass;
1685 MonoTableInfo *methodt;
1686 MonoTableInfo *paramt;
1689 if (method->klass->image->dynamic) {
1690 MonoReflectionMethodAux *method_aux =
1691 g_hash_table_lookup (
1692 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1693 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1695 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1702 mono_class_init (klass);
1704 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1705 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1706 idx = mono_method_get_index (method);
1708 guint32 cols [MONO_PARAM_SIZE];
1709 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1711 if (idx + 1 < methodt->rows)
1712 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1714 lastp = paramt->rows + 1;
1716 for (i = param_index; i < lastp; ++i) {
1717 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1719 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1728 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1731 g_assert (method != NULL);
1732 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1734 data = ((MonoMethodWrapper *)method)->method_data;
1735 g_assert (data != NULL);
1736 g_assert (id <= GPOINTER_TO_UINT (*data));
1741 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1742 g_error ("stack walk not installed");
1745 static MonoStackWalkImpl stack_walk = default_stack_walk;
1748 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1750 stack_walk (func, TRUE, user_data);
1754 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1756 stack_walk (func, FALSE, user_data);
1760 mono_install_stack_walk (MonoStackWalkImpl func)
1766 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1768 MonoMethod **dest = data;
1770 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1776 mono_method_get_last_managed (void)
1778 MonoMethod *m = NULL;
1779 stack_walk (last_managed, FALSE, &m);
1784 mono_loader_lock (void)
1786 EnterCriticalSection (&loader_mutex);
1790 mono_loader_unlock (void)
1792 LeaveCriticalSection (&loader_mutex);
1796 * mono_method_signature:
1798 * Return the signature of the method M. On failure, returns NULL.
1800 MonoMethodSignature*
1801 mono_method_signature (MonoMethod *m)
1807 gboolean can_cache_signature;
1808 MonoGenericContainer *container;
1812 return m->signature;
1814 mono_loader_lock ();
1817 mono_loader_unlock ();
1818 return m->signature;
1821 if (m->is_inflated) {
1822 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
1823 MonoMethodSignature *signature;
1824 /* the lock is recursive */
1825 signature = mono_method_signature (imethod->declaring);
1826 m->signature = inflate_generic_signature (imethod->declaring->klass->image, signature, mono_method_get_context (m));
1827 mono_loader_unlock ();
1828 return m->signature;
1831 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
1832 idx = mono_metadata_token_index (m->token);
1833 img = m->klass->image;
1835 sig = mono_metadata_blob_heap (img, mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
1837 g_assert (!m->klass->generic_class);
1838 container = m->generic_container;
1840 container = m->klass->generic_container;
1842 /* Generic signatures depend on the container so they cannot be cached */
1843 /* icall/pinvoke signatures cannot be cached cause we modify them below */
1844 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
1846 /* If the method has parameter attributes, that can modify the signature */
1847 pattrs = mono_metadata_get_param_attrs (img, idx);
1849 can_cache_signature = FALSE;
1853 if (can_cache_signature)
1854 m->signature = g_hash_table_lookup (img->method_signatures, sig);
1856 if (!m->signature) {
1857 const char *sig_body;
1859 size = mono_metadata_decode_blob_size (sig, &sig_body);
1861 m->signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL);
1862 if (!m->signature) {
1863 mono_loader_unlock ();
1867 if (can_cache_signature)
1868 g_hash_table_insert (img->method_signatures, (gpointer)sig, m->signature);
1871 /* Verify metadata consistency */
1872 if (m->signature->generic_param_count) {
1873 if (!container || !container->is_method)
1874 g_error ("Signature claims method has generic parameters, but generic_params table says it doesn't");
1875 if (container->type_argc != m->signature->generic_param_count)
1876 g_error ("Inconsistent generic parameter count. Signature says %d, generic_params table says %d",
1877 m->signature->generic_param_count, container->type_argc);
1878 } else if (container && container->is_method && container->type_argc)
1879 g_error ("generic_params table claims method has generic parameters, but signature says it doesn't");
1881 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
1882 m->signature->pinvoke = 1;
1883 else if ((m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(m->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1884 MonoCallConvention conv = 0;
1885 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
1886 m->signature->pinvoke = 1;
1888 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
1889 case 0: /* no call conv, so using default */
1890 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
1891 conv = MONO_CALL_DEFAULT;
1893 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
1896 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
1897 conv = MONO_CALL_STDCALL;
1899 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
1900 conv = MONO_CALL_THISCALL;
1902 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
1903 conv = MONO_CALL_FASTCALL;
1905 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
1906 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
1908 g_warning ("unsupported calling convention : 0x%04x", piinfo->piflags);
1909 g_assert_not_reached ();
1911 m->signature->call_convention = conv;
1914 mono_loader_unlock ();
1915 return m->signature;
1919 mono_method_get_name (MonoMethod *method)
1921 return method->name;
1925 mono_method_get_class (MonoMethod *method)
1927 return method->klass;
1931 mono_method_get_token (MonoMethod *method)
1933 return method->token;
1937 mono_method_get_header (MonoMethod *method)
1943 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1945 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))
1949 if (G_LIKELY (mn->header))
1955 mono_loader_lock ();
1958 mono_loader_unlock ();
1962 if (method->is_inflated) {
1963 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1964 MonoMethodHeader *header;
1965 /* the lock is recursive */
1966 header = mono_method_get_header (imethod->declaring);
1967 mn->header = inflate_generic_header (header, mono_method_get_context (method));
1968 mono_loader_unlock ();
1972 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1973 idx = mono_metadata_token_index (method->token);
1974 img = method->klass->image;
1975 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1976 loc = mono_image_rva_map (img, rva);
1980 mn->header = mono_metadata_parse_mh_full (img, method->generic_container, loc);
1982 mono_loader_unlock ();
1987 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1990 *iflags = method->iflags;
1991 return method->flags;
1995 * Find the method index in the metadata methodDef table.
1998 mono_method_get_index (MonoMethod *method) {
1999 MonoClass *klass = method->klass;
2003 return mono_metadata_token_index (method->token);
2005 mono_class_setup_methods (klass);
2006 for (i = 0; i < klass->method.count; ++i) {
2007 if (method == klass->methods [i]) {
2008 if (klass->image->uncompressed_metadata)
2009 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
2011 return klass->method.first + i + 1;