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->exception_type = MONO_EXCEPTION_FILE_NOT_FOUND;
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->exception_type = MONO_EXCEPTION_TYPE_LOAD;
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->exception_type = MONO_EXCEPTION_MISSING_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->exception_type = MONO_EXCEPTION_MISSING_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->exception_type) {
239 case MONO_EXCEPTION_TYPE_LOAD: {
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_EXCEPTION_MISSING_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_EXCEPTION_MISSING_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_EXCEPTION_FILE_NOT_FOUND: {
286 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);
288 msg = g_strdup_printf ("Could not load file or assembly '%s' or one of its dependencies.", error->assembly_name);
289 filename = g_strdup (error->assembly_name);
290 /* Has to call this before calling anything which might call mono_class_init () */
291 mono_loader_clear_error ();
292 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), filename));
299 g_assert_not_reached ();
305 static MonoClassField*
306 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
307 MonoGenericContext *context)
310 MonoClassField *field;
311 MonoTableInfo *tables = image->tables;
313 guint32 nindex, class;
316 guint32 idx = mono_metadata_token_index (token);
318 if (image->dynamic) {
319 MonoClassField *result = mono_lookup_dynamic_token (image, token);
320 *retklass = result->parent;
324 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
325 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
326 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
328 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
330 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
331 mono_metadata_decode_blob_size (ptr, &ptr);
332 /* we may want to check the signature here... */
335 case MONO_MEMBERREF_PARENT_TYPEDEF:
336 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
338 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
339 g_warning ("Missing field %s in class %s (typeref index %d)", fname, name, nindex);
343 mono_class_init (klass);
346 field = mono_class_get_field_from_name (klass, fname);
348 case MONO_MEMBERREF_PARENT_TYPEREF:
349 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
351 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
352 g_warning ("Missing field %s in class %s (typeref index %d)", fname, name, nindex);
356 mono_class_init (klass);
359 field = mono_class_get_field_from_name (klass, fname);
361 case MONO_MEMBERREF_PARENT_TYPESPEC: {
362 /*guint32 bcols [MONO_TYPESPEC_SIZE];
366 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
367 bcols, MONO_TYPESPEC_SIZE);
368 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
369 len = mono_metadata_decode_value (ptr, &ptr);
370 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
372 klass = mono_class_from_mono_type (type);
373 mono_class_init (klass);
374 g_print ("type in sig: %s\n", klass->name);*/
375 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
376 mono_class_init (klass);
379 field = mono_class_get_field_from_name (klass, fname);
383 g_warning ("field load from %x", class);
388 mono_loader_set_error_field_load (klass, fname);
394 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
395 MonoGenericContext *context)
399 MonoClassField *field;
401 if (image->dynamic) {
402 MonoClassField *result = mono_lookup_dynamic_token (image, token);
403 *retklass = result->parent;
408 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
409 *retklass = field->parent;
410 mono_loader_unlock ();
413 mono_loader_unlock ();
415 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
416 field = field_from_memberref (image, token, retklass, context);
418 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
421 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
427 field = mono_class_get_field (k, token);
431 if (field && !field->parent->generic_class)
432 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
433 mono_loader_unlock ();
438 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
442 if (sig1->hasthis != sig2->hasthis ||
443 sig1->sentinelpos != sig2->sentinelpos)
446 for (i = 0; i < sig1->sentinelpos; i++) {
447 MonoType *p1 = sig1->params[i];
448 MonoType *p2 = sig2->params[i];
450 /*if (p1->attrs != p2->attrs)
453 if (!mono_metadata_type_equal (p1, p2))
457 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
463 find_method_in_class (MonoClass *in_class, const char *name, const char *qname, const char *fqname,
464 MonoMethodSignature *sig, MonoClass *from_class)
468 mono_class_setup_methods (in_class);
469 for (i = 0; i < in_class->method.count; ++i) {
470 MonoMethod *m = in_class->methods [i];
472 if (!((fqname && !strcmp (m->name, fqname)) ||
473 (qname && !strcmp (m->name, qname)) ||
474 (name && !strcmp (m->name, name))))
477 if (sig->call_convention == MONO_CALL_VARARG) {
478 if (mono_metadata_signature_vararg_match (sig, mono_method_signature (m)))
481 if (mono_metadata_signature_equal (sig, mono_method_signature (m)))
486 if (i < in_class->method.count) {
487 mono_class_setup_methods (from_class);
488 g_assert (from_class->method.count == in_class->method.count);
489 return from_class->methods [i];
495 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class)
498 char *qname, *fqname, *class_name;
499 gboolean is_interface;
500 MonoMethod *result = NULL;
502 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
505 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
507 qname = g_strconcat (class_name, ".", name, NULL);
508 if (ic->name_space && ic->name_space [0])
509 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
513 class_name = qname = fqname = NULL;
516 g_assert (from_class);
517 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class);
521 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
524 g_assert (from_class->interface_count == in_class->interface_count);
525 for (i = 0; i < in_class->interface_count; i++) {
526 MonoClass *ic = in_class->interfaces [i];
527 MonoClass *from_ic = from_class->interfaces [i];
528 char *ic_qname, *ic_fqname, *ic_class_name;
530 ic_class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
531 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
532 if (ic->name_space && ic->name_space [0])
533 ic_fqname = g_strconcat (ic->name_space, ".", ic_class_name, ".", name, NULL);
537 result = find_method_in_class (ic, NULL, ic_qname, ic_fqname, sig, from_ic);
538 g_free (ic_class_name);
545 in_class = in_class->parent;
546 from_class = from_class->parent;
548 g_assert (!in_class == !from_class);
551 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class);
560 static MonoMethodSignature*
561 inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context)
563 MonoMethodSignature *res;
570 res = mono_metadata_signature_alloc (image, sig->param_count);
571 res->ret = mono_class_inflate_generic_type (sig->ret, context);
572 is_open = mono_class_is_open_constructed_type (res->ret);
573 for (i = 0; i < sig->param_count; ++i) {
574 res->params [i] = mono_class_inflate_generic_type (sig->params [i], context);
576 is_open = mono_class_is_open_constructed_type (res->params [i]);
578 res->hasthis = sig->hasthis;
579 res->explicit_this = sig->explicit_this;
580 res->call_convention = sig->call_convention;
581 res->pinvoke = sig->pinvoke;
582 res->generic_param_count = sig->generic_param_count;
583 res->sentinelpos = sig->sentinelpos;
584 res->has_type_parameters = is_open;
585 res->is_inflated = 1;
589 static MonoMethodHeader*
590 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
592 MonoMethodHeader *res;
594 res = g_malloc0 (sizeof (MonoMethodHeader) + sizeof (gpointer) * header->num_locals);
595 res->code = header->code;
596 res->code_size = header->code_size;
597 res->max_stack = header->max_stack;
598 res->num_clauses = header->num_clauses;
599 res->init_locals = header->init_locals;
600 res->num_locals = header->num_locals;
601 res->clauses = header->clauses;
602 for (i = 0; i < header->num_locals; ++i)
603 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
604 if (res->num_clauses) {
605 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
606 for (i = 0; i < header->num_clauses; ++i) {
607 MonoExceptionClause *clause = &res->clauses [i];
609 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
611 t = mono_class_inflate_generic_type (&clause->data.catch_class->byval_arg, context);
612 clause->data.catch_class = mono_class_from_mono_type (t);
619 * token is the method_ref or method_def token used in a call IL instruction.
622 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
624 int table = mono_metadata_token_table (token);
625 int idx = mono_metadata_token_index (token);
626 guint32 cols [MONO_MEMBERREF_SIZE];
627 MonoMethodSignature *sig, *prev_sig;
630 /* !table is for wrappers: we should really assign their own token to them */
631 if (!table || table == MONO_TABLE_METHOD)
632 return mono_method_signature (method);
634 if (table == MONO_TABLE_METHODSPEC) {
635 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
636 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
637 mono_method_signature (method));
638 g_assert (method->is_inflated);
640 return mono_method_signature (method);
643 if (method->klass->generic_class)
644 return mono_method_signature (method);
647 /* FIXME: This might be incorrect for vararg methods */
648 return mono_method_signature (method);
651 sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
652 mono_loader_unlock ();
654 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
656 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
657 mono_metadata_decode_blob_size (ptr, &ptr);
658 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
661 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
663 /* Somebody got in before us */
664 /* FIXME: Free sig */
668 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
669 mono_loader_unlock ();
672 sig = inflate_generic_signature (image, sig, context);
678 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
680 return mono_method_get_signature_full (method, image, token, NULL);
683 /* this is only for the typespec array methods */
685 search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
688 for (i = 0; i < klass->method.count; ++i) {
689 MonoMethod *method = klass->methods [i];
690 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
697 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
698 gboolean *used_context)
700 MonoClass *klass = NULL;
701 MonoMethod *method = NULL;
702 MonoTableInfo *tables = image->tables;
704 guint32 nindex, class;
706 MonoMethodSignature *sig;
709 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
710 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
711 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
712 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
713 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
715 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
718 * Whether we actually used the `typespec_context' or not.
719 * This is used to tell our caller whether or not it's safe to insert the returned
720 * method into a cache.
723 *used_context = class == MONO_MEMBERREF_PARENT_TYPESPEC;
726 case MONO_MEMBERREF_PARENT_TYPEREF:
727 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
729 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
730 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
731 mono_loader_set_error_method_load (name, mname);
736 case MONO_MEMBERREF_PARENT_TYPESPEC:
738 * Parse the TYPESPEC in the parent's context.
740 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context);
742 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_SPEC | nindex);
743 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
744 mono_loader_set_error_method_load (name, mname);
749 case MONO_MEMBERREF_PARENT_TYPEDEF:
750 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
752 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | nindex);
753 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
754 mono_loader_set_error_method_load (name, mname);
759 case MONO_MEMBERREF_PARENT_METHODDEF:
760 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
764 /* This message leaks */
765 char *message = g_strdup_printf ("Memberref parent unknown: class: %d, index %d", class, nindex);
766 mono_loader_set_error_method_load ("", message);
772 mono_class_init (klass);
774 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
775 mono_metadata_decode_blob_size (ptr, &ptr);
777 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
782 case MONO_MEMBERREF_PARENT_TYPEREF:
783 case MONO_MEMBERREF_PARENT_TYPEDEF:
784 method = find_method (klass, NULL, mname, sig, klass);
787 case MONO_MEMBERREF_PARENT_TYPESPEC: {
791 type = &klass->byval_arg;
793 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
794 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
795 method = find_method (in_class, NULL, mname, sig, klass);
799 /* we're an array and we created these methods already in klass in mono_class_init () */
800 result = search_in_array_class (klass, mname, sig);
804 g_assert_not_reached ();
808 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
809 g_assert_not_reached ();
813 char *msig = mono_signature_get_desc (sig, FALSE);
814 char * class_name = mono_type_get_name (&klass->byval_arg);
815 GString *s = g_string_new (mname);
816 if (sig->generic_param_count)
817 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
818 g_string_append_printf (s, "(%s)", msig);
820 msig = g_string_free (s, FALSE);
823 "Missing method %s::%s in assembly %s, referenced in assembly %s",
824 class_name, msig, klass->image->name, image->name);
825 mono_loader_set_error_method_load (class_name, mname);
829 mono_metadata_free_method_signature (sig);
835 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
837 MonoMethod *method, *inflated;
839 MonoTableInfo *tables = image->tables;
840 MonoGenericContext new_context;
841 MonoGenericInst *inst;
843 guint32 cols [MONO_METHODSPEC_SIZE];
844 guint32 token, nindex, param_count;
846 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
847 token = cols [MONO_METHODSPEC_METHOD];
848 nindex = token >> MONO_METHODDEFORREF_BITS;
850 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
852 mono_metadata_decode_value (ptr, &ptr);
854 param_count = mono_metadata_decode_value (ptr, &ptr);
855 g_assert (param_count);
858 * Be careful with the two contexts here:
860 * ----------------------------------------
862 * static void Hello<T> (S s, T t) { }
864 * static void Test<U> (U u) {
865 * Foo<U>.Hello<string> (u, "World");
868 * ----------------------------------------
870 * Let's assume we're currently JITing Foo<int>.Test<long>
871 * (ie. `S' is instantiated as `int' and `U' is instantiated as `long').
873 * The call to Hello() is encoded with a MethodSpec with a TypeSpec as parent
874 * (MONO_MEMBERREF_PARENT_TYPESPEC).
876 * The TypeSpec is encoded as `Foo<!!0>', so we need to parse it in the current
877 * context (S=int, U=long) to get the correct `Foo<long>'.
879 * After that, we parse the memberref signature in the new context
880 * (S=int, T=uninstantiated) and get the open generic method `Foo<long>.Hello<T>'.
883 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
884 method = mono_get_method_full (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context);
886 method = method_from_memberref (image, nindex, context, NULL);
888 klass = method->klass;
890 /* FIXME: Is this invalid metadata? Should we throw an exception instead? */
891 g_assert (!klass->generic_container);
893 if (klass->generic_class) {
894 g_assert (method->is_inflated);
895 method = ((MonoMethodInflated *) method)->declaring;
898 new_context.class_inst = klass->generic_class ? klass->generic_class->context.class_inst : NULL;
901 * When parsing the methodspec signature, we're in the old context again:
903 * ----------------------------------------
905 * static void Hello<T> (T t) { }
907 * static void Test<U> (U u) {
911 * ----------------------------------------
913 * Let's assume we're currently JITing "Foo.Test<float>".
915 * In this case, we already parsed the memberref as "Foo.Hello<T>" and the methodspec
916 * signature is "<!!0>". This means that we must instantiate the method type parameter
917 * `T' from the new method with the method type parameter `U' from the current context;
918 * ie. instantiate the method as `Foo.Hello<float>.
921 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr);
923 if (context && inst->is_open)
924 inst = mono_metadata_inflate_generic_inst (inst, context);
926 new_context.method_inst = inst;
928 inflated = mono_class_inflate_generic_method_full (method, klass, &new_context);
941 static MonoDllMap *global_dll_map;
944 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
955 * we use the first entry we find that matches, since entries from
956 * the config file are prepended to the list and we document that the
959 for (; dll_map; dll_map = dll_map->next) {
960 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
961 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
963 } else if (strcmp (dll_map->dll, dll)) {
966 if (!found && dll_map->target) {
967 *rdll = dll_map->target;
969 /* we don't quit here, because we could find a full
970 * entry that matches also function and that has priority.
973 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
974 *rfunc = dll_map->target_func;
979 mono_loader_unlock ();
984 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
987 if (assembly && assembly->dll_map) {
988 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
992 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
996 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
1002 entry = g_malloc0 (sizeof (MonoDllMap));
1003 entry->dll = dll? g_strdup (dll): NULL;
1004 entry->target = tdll? g_strdup (tdll): NULL;
1005 entry->func = func? g_strdup (func): NULL;
1006 entry->target_func = tfunc? g_strdup (tfunc): NULL;
1007 entry->next = global_dll_map;
1008 global_dll_map = entry;
1010 MonoMemPool *mpool = assembly->mempool;
1011 entry = mono_mempool_alloc0 (mpool, sizeof (MonoDllMap));
1012 entry->dll = dll? mono_mempool_strdup (mpool, dll): NULL;
1013 entry->target = tdll? mono_mempool_strdup (mpool, tdll): NULL;
1014 entry->func = func? mono_mempool_strdup (mpool, func): NULL;
1015 entry->target_func = tfunc? mono_mempool_strdup (mpool, tfunc): NULL;
1016 entry->next = assembly->dll_map;
1017 assembly->dll_map = entry;
1020 mono_loader_unlock ();
1023 static GHashTable *global_module_map;
1026 cached_module_load (const char *name, int flags, char **err)
1029 mono_loader_lock ();
1030 if (!global_module_map)
1031 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1032 res = g_hash_table_lookup (global_module_map, name);
1035 mono_loader_unlock ();
1038 res = mono_dl_open (name, flags, err);
1040 g_hash_table_insert (global_module_map, g_strdup (name), res);
1041 mono_loader_unlock ();
1046 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1048 MonoImage *image = method->klass->image;
1049 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1050 MonoTableInfo *tables = image->tables;
1051 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1052 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1053 guint32 im_cols [MONO_IMPLMAP_SIZE];
1054 guint32 scope_token;
1055 const char *import = NULL;
1056 const char *orig_scope;
1057 const char *new_scope;
1059 char *full_name, *file_name;
1061 MonoDl *module = NULL;
1063 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1066 return piinfo->addr;
1068 if (method->klass->image->dynamic) {
1069 MonoReflectionMethodAux *method_aux =
1070 g_hash_table_lookup (
1071 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1075 import = method_aux->dllentry;
1076 orig_scope = method_aux->dll;
1079 if (!piinfo->implmap_idx)
1082 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1084 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1085 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1086 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1087 orig_scope = mono_metadata_string_heap (image, scope_token);
1090 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1092 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1093 "DllImport attempting to load: '%s'.", new_scope);
1100 /* we allow a special name to dlopen from the running process namespace */
1101 if (strcmp (new_scope, "__Internal") == 0)
1102 module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1105 * Try loading the module using a variety of names
1107 for (i = 0; i < 4; ++i) {
1110 /* Try the original name */
1111 file_name = g_strdup (new_scope);
1114 /* Try trimming the .dll extension */
1115 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1116 file_name = g_strdup (new_scope);
1117 file_name [strlen (new_scope) - 4] = '\0';
1123 if (strstr (new_scope, "lib") != new_scope) {
1124 file_name = g_strdup_printf ("lib%s", new_scope);
1130 #ifndef PLATFORM_WIN32
1131 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1132 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1133 !g_ascii_strcasecmp ("user32", new_scope) ||
1134 !g_ascii_strcasecmp ("kernel", new_scope)) {
1135 file_name = g_strdup ("libMonoSupportW.so");
1139 #ifndef PLATFORM_WIN32
1146 while ((full_name = mono_dl_build_path (NULL, file_name, &iter))) {
1147 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1148 "DllImport loading location: '%s'.", full_name);
1149 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1151 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1152 "DllImport error loading library: '%s'.",
1164 while ((full_name = mono_dl_build_path (".", file_name, &iter))) {
1165 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1166 "DllImport loading library: '%s'.", full_name);
1167 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1169 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1170 "DllImport error loading library '%s'.",
1181 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1182 "DllImport loading: '%s'.", file_name);
1183 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1185 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1186 "DllImport error loading library '%s'.",
1198 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1199 "DllImport unable to load library '%s'.",
1204 *exc_class = "DllNotFoundException";
1205 *exc_arg = new_scope;
1210 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1211 "Searching for '%s'.", import);
1213 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1214 error_msg = mono_dl_symbol (module, import, &piinfo->addr);
1216 char *mangled_name = NULL, *mangled_name2 = NULL;
1219 int mangle_param_count;
1220 #ifdef PLATFORM_WIN32
1225 * Search using a variety of mangled names
1227 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1228 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1229 gboolean need_param_count = FALSE;
1230 #ifdef PLATFORM_WIN32
1231 if (mangle_stdcall > 0)
1232 need_param_count = TRUE;
1234 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1239 mangled_name = (char*)import;
1240 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1241 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1242 /* Try the mangled name first */
1243 if (mangle_charset == 0)
1244 mangled_name = g_strconcat (import, "W", NULL);
1246 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1247 #ifdef PLATFORM_WIN32
1248 if (mangle_charset == 0)
1249 mangled_name = g_strconcat (import, "W", NULL);
1251 /* Try the mangled name last */
1252 if (mangle_charset == 1)
1253 mangled_name = g_strconcat (import, "A", NULL);
1256 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1258 /* Try the mangled name last */
1259 if (mangle_charset == 1)
1260 mangled_name = g_strconcat (import, "A", NULL);
1264 #ifdef PLATFORM_WIN32
1265 if (mangle_param_count == 0)
1266 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1268 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1269 param_count = mangle_param_count;
1271 /* Try the stdcall mangled name */
1273 * gcc under windows creates mangled names without the underscore, but MS.NET
1274 * doesn't support it, so we doesn't support it either.
1276 if (mangle_stdcall == 1)
1277 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1279 mangled_name2 = mangled_name;
1281 mangled_name2 = mangled_name;
1284 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1285 "Probing '%s'.", mangled_name2);
1287 error_msg = mono_dl_symbol (module, mangled_name2, &piinfo->addr);
1290 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1291 "Found as '%s'.", mangled_name2);
1293 if (mangled_name != mangled_name2)
1294 g_free (mangled_name2);
1295 if (mangled_name != import)
1296 g_free (mangled_name);
1302 if (!piinfo->addr) {
1305 *exc_class = "EntryPointNotFoundException";
1310 return piinfo->addr;
1314 * LOCKING: assumes the loader lock to be taken.
1317 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1318 MonoGenericContext *context, gboolean *used_context)
1321 int table = mono_metadata_token_table (token);
1322 int idx = mono_metadata_token_index (token);
1323 MonoTableInfo *tables = image->tables;
1324 MonoGenericContainer *generic_container = NULL, *container = NULL;
1325 const char *sig = NULL;
1327 guint32 cols [MONO_TYPEDEF_SIZE];
1330 return mono_lookup_dynamic_token (image, token);
1332 if (table != MONO_TABLE_METHOD) {
1333 if (table == MONO_TABLE_METHODSPEC) {
1334 if (used_context) *used_context = TRUE;
1335 return method_from_methodspec (image, context, idx);
1337 if (table != MONO_TABLE_MEMBERREF)
1338 g_print("got wrong token: 0x%08x\n", token);
1339 g_assert (table == MONO_TABLE_MEMBERREF);
1340 return method_from_memberref (image, idx, context, used_context);
1343 if (used_context) *used_context = FALSE;
1345 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1347 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1348 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
1349 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodPInvoke));
1351 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodNormal));
1353 mono_stats.method_count ++;
1356 guint32 type = mono_metadata_typedef_from_method (image, token);
1357 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
1363 result->klass = klass;
1364 result->flags = cols [2];
1365 result->iflags = cols [1];
1366 result->token = token;
1367 result->name = mono_metadata_string_heap (image, cols [3]);
1369 container = klass->generic_container;
1370 generic_container = mono_metadata_load_generic_params (image, token, container);
1371 if (generic_container) {
1372 generic_container->owner.method = result;
1374 mono_metadata_load_generic_param_constraints (image, token, generic_container);
1376 for (i = 0; i < generic_container->type_argc; i++)
1377 mono_class_from_generic_parameter (&generic_container->type_params [i], image, TRUE);
1379 container = generic_container;
1383 if (!sig) /* already taken from the methodref */
1384 sig = mono_metadata_blob_heap (image, cols [4]);
1385 size = mono_metadata_decode_blob_size (sig, &sig);
1387 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1388 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1389 result->string_ctor = 1;
1390 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1391 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1392 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1394 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1395 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1398 /* FIXME: lazyness for generics too, but how? */
1399 if (!(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
1400 !(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
1401 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
1402 gpointer loc = mono_image_rva_map (image, cols [0]);
1404 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (image, container, loc);
1407 result->generic_container = generic_container;
1413 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1415 return mono_get_method_full (image, token, klass, NULL);
1419 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1420 MonoGenericContext *context)
1423 gboolean used_context = FALSE;
1425 /* We do everything inside the lock to prevent creation races */
1427 mono_loader_lock ();
1429 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
1430 mono_loader_unlock ();
1434 result = mono_get_method_from_token (image, token, klass, context, &used_context);
1436 //printf ("GET: %s\n", mono_method_full_name (result, TRUE));
1439 g_message (G_STRLOC ": %s - %d - %d", mono_method_full_name (result, TRUE),
1440 result->is_inflated, used_context);
1444 * `used_context' specifies whether or not mono_get_method_from_token() actually
1445 * used the `context' to get the method. See bug #80969.
1448 if (!used_context && !(result && result->is_inflated))
1449 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
1451 mono_loader_unlock ();
1457 * mono_get_method_constrained:
1459 * This is used when JITing the `constrained.' opcode.
1461 * This returns two values: the contrained method, which has been inflated
1462 * as the function return value; And the original CIL-stream method as
1463 * declared in cil_method. The later is used for verification.
1466 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1467 MonoGenericContext *context, MonoMethod **cil_method)
1469 MonoMethod *method, *result;
1470 MonoClass *ic = NULL;
1471 MonoGenericContext *class_context = NULL, *method_context = NULL;
1472 MonoMethodSignature *sig;
1474 mono_loader_lock ();
1476 *cil_method = mono_get_method_from_token (image, token, NULL, context, NULL);
1478 mono_loader_unlock ();
1482 mono_class_init (constrained_class);
1483 method = *cil_method;
1484 sig = mono_method_signature (method);
1486 if (method->is_inflated && sig->generic_param_count) {
1487 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1488 sig = mono_method_signature (imethod->declaring);
1489 method_context = mono_method_get_context (method);
1492 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1495 if (constrained_class->generic_class)
1496 class_context = mono_class_get_context (constrained_class);
1498 result = find_method (constrained_class, ic, method->name, sig, constrained_class);
1500 g_warning ("Missing method %s.%s.%s in assembly %s token %x", method->klass->name_space,
1501 method->klass->name, method->name, image->name, token);
1502 mono_loader_unlock ();
1507 result = mono_class_inflate_generic_method (result, class_context);
1509 result = mono_class_inflate_generic_method (result, method_context);
1511 mono_loader_unlock ();
1516 mono_free_method (MonoMethod *method)
1518 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
1521 if (method->signature) {
1523 * FIXME: This causes crashes because the types inside signatures and
1524 * locals are shared.
1526 /* mono_metadata_free_method_signature (method->signature); */
1527 /* g_free (method->signature); */
1530 if (method->dynamic) {
1531 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1534 g_free ((char*)method->name);
1535 if (mw->method.header) {
1536 g_free ((char*)mw->method.header->code);
1537 for (i = 0; i < mw->method.header->num_locals; ++i)
1538 g_free (mw->method.header->locals [i]);
1539 g_free (mw->method.header->clauses);
1540 g_free (mw->method.header);
1542 g_free (mw->method_data);
1543 g_free (method->signature);
1549 mono_method_get_param_names (MonoMethod *method, const char **names)
1552 MonoClass *klass = method->klass;
1553 MonoTableInfo *methodt;
1554 MonoTableInfo *paramt;
1557 if (!mono_method_signature (method)->param_count)
1559 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1562 if (klass->generic_class || klass->rank) /* copy the names later */
1565 mono_class_init (klass);
1567 if (klass->image->dynamic) {
1568 MonoReflectionMethodAux *method_aux =
1569 g_hash_table_lookup (
1570 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1571 if (method_aux && method_aux->param_names) {
1572 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1573 if (method_aux->param_names [i + 1])
1574 names [i] = method_aux->param_names [i + 1];
1579 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1580 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1581 idx = mono_method_get_index (method);
1583 guint32 cols [MONO_PARAM_SIZE];
1586 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1588 if (idx < methodt->rows)
1589 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1591 lastp = paramt->rows + 1;
1592 for (i = param_index; i < lastp; ++i) {
1593 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1594 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1595 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1602 mono_method_get_param_token (MonoMethod *method, int index)
1604 MonoClass *klass = method->klass;
1605 MonoTableInfo *methodt;
1608 mono_class_init (klass);
1610 if (klass->image->dynamic) {
1611 g_assert_not_reached ();
1614 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1615 idx = mono_method_get_index (method);
1617 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1621 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
1623 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1630 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1633 MonoClass *klass = method->klass;
1634 MonoTableInfo *methodt;
1635 MonoTableInfo *paramt;
1638 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1641 if (method->klass->image->dynamic) {
1642 MonoReflectionMethodAux *method_aux =
1643 g_hash_table_lookup (
1644 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1645 if (method_aux && method_aux->param_marshall) {
1646 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1647 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1648 if (dyn_specs [i]) {
1649 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1650 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1656 mono_class_init (klass);
1658 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1659 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1660 idx = mono_method_get_index (method);
1662 guint32 cols [MONO_PARAM_SIZE];
1663 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1665 if (idx < methodt->rows)
1666 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1668 lastp = paramt->rows + 1;
1670 for (i = param_index; i < lastp; ++i) {
1671 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1673 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1675 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1677 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1686 mono_method_has_marshal_info (MonoMethod *method)
1689 MonoClass *klass = method->klass;
1690 MonoTableInfo *methodt;
1691 MonoTableInfo *paramt;
1694 if (method->klass->image->dynamic) {
1695 MonoReflectionMethodAux *method_aux =
1696 g_hash_table_lookup (
1697 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1698 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1700 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1707 mono_class_init (klass);
1709 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1710 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1711 idx = mono_method_get_index (method);
1713 guint32 cols [MONO_PARAM_SIZE];
1714 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1716 if (idx + 1 < methodt->rows)
1717 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1719 lastp = paramt->rows + 1;
1721 for (i = param_index; i < lastp; ++i) {
1722 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1724 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1733 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1736 g_assert (method != NULL);
1737 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1739 data = ((MonoMethodWrapper *)method)->method_data;
1740 g_assert (data != NULL);
1741 g_assert (id <= GPOINTER_TO_UINT (*data));
1746 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1747 g_error ("stack walk not installed");
1750 static MonoStackWalkImpl stack_walk = default_stack_walk;
1753 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1755 stack_walk (func, TRUE, user_data);
1759 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1761 stack_walk (func, FALSE, user_data);
1765 mono_install_stack_walk (MonoStackWalkImpl func)
1771 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1773 MonoMethod **dest = data;
1775 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1781 mono_method_get_last_managed (void)
1783 MonoMethod *m = NULL;
1784 stack_walk (last_managed, FALSE, &m);
1789 mono_loader_lock (void)
1791 EnterCriticalSection (&loader_mutex);
1795 mono_loader_unlock (void)
1797 LeaveCriticalSection (&loader_mutex);
1801 * mono_method_signature:
1803 * Return the signature of the method M. On failure, returns NULL.
1805 MonoMethodSignature*
1806 mono_method_signature (MonoMethod *m)
1812 gboolean can_cache_signature;
1813 MonoGenericContainer *container;
1817 return m->signature;
1819 mono_loader_lock ();
1822 mono_loader_unlock ();
1823 return m->signature;
1826 if (m->is_inflated) {
1827 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
1828 MonoMethodSignature *signature;
1829 /* the lock is recursive */
1830 signature = mono_method_signature (imethod->declaring);
1831 m->signature = inflate_generic_signature (imethod->declaring->klass->image, signature, mono_method_get_context (m));
1832 mono_loader_unlock ();
1833 return m->signature;
1836 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
1837 idx = mono_metadata_token_index (m->token);
1838 img = m->klass->image;
1840 sig = mono_metadata_blob_heap (img, mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
1842 g_assert (!m->klass->generic_class);
1843 container = m->generic_container;
1845 container = m->klass->generic_container;
1847 /* Generic signatures depend on the container so they cannot be cached */
1848 /* icall/pinvoke signatures cannot be cached cause we modify them below */
1849 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
1851 /* If the method has parameter attributes, that can modify the signature */
1852 pattrs = mono_metadata_get_param_attrs (img, idx);
1854 can_cache_signature = FALSE;
1858 if (can_cache_signature)
1859 m->signature = g_hash_table_lookup (img->method_signatures, sig);
1861 if (!m->signature) {
1862 const char *sig_body;
1864 size = mono_metadata_decode_blob_size (sig, &sig_body);
1866 m->signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL);
1867 if (!m->signature) {
1868 mono_loader_unlock ();
1872 if (can_cache_signature)
1873 g_hash_table_insert (img->method_signatures, (gpointer)sig, m->signature);
1876 /* Verify metadata consistency */
1877 if (m->signature->generic_param_count) {
1878 if (!container || !container->is_method)
1879 g_error ("Signature claims method has generic parameters, but generic_params table says it doesn't");
1880 if (container->type_argc != m->signature->generic_param_count)
1881 g_error ("Inconsistent generic parameter count. Signature says %d, generic_params table says %d",
1882 m->signature->generic_param_count, container->type_argc);
1883 } else if (container && container->is_method && container->type_argc)
1884 g_error ("generic_params table claims method has generic parameters, but signature says it doesn't");
1886 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
1887 m->signature->pinvoke = 1;
1888 else if ((m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(m->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1889 MonoCallConvention conv = 0;
1890 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
1891 m->signature->pinvoke = 1;
1893 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
1894 case 0: /* no call conv, so using default */
1895 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
1896 conv = MONO_CALL_DEFAULT;
1898 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
1901 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
1902 conv = MONO_CALL_STDCALL;
1904 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
1905 conv = MONO_CALL_THISCALL;
1907 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
1908 conv = MONO_CALL_FASTCALL;
1910 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
1911 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
1913 g_warning ("unsupported calling convention : 0x%04x", piinfo->piflags);
1914 g_assert_not_reached ();
1916 m->signature->call_convention = conv;
1919 mono_loader_unlock ();
1920 return m->signature;
1924 mono_method_get_name (MonoMethod *method)
1926 return method->name;
1930 mono_method_get_class (MonoMethod *method)
1932 return method->klass;
1936 mono_method_get_token (MonoMethod *method)
1938 return method->token;
1942 mono_method_get_header (MonoMethod *method)
1948 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1950 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))
1954 if (G_LIKELY (mn->header))
1960 mono_loader_lock ();
1963 mono_loader_unlock ();
1967 if (method->is_inflated) {
1968 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1969 MonoMethodHeader *header;
1970 /* the lock is recursive */
1971 header = mono_method_get_header (imethod->declaring);
1972 mn->header = inflate_generic_header (header, mono_method_get_context (method));
1973 mono_loader_unlock ();
1977 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1978 idx = mono_metadata_token_index (method->token);
1979 img = method->klass->image;
1980 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1981 loc = mono_image_rva_map (img, rva);
1985 mn->header = mono_metadata_parse_mh_full (img, method->generic_container, loc);
1987 mono_loader_unlock ();
1992 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1995 *iflags = method->iflags;
1996 return method->flags;
2000 * Find the method index in the metadata methodDef table.
2003 mono_method_get_index (MonoMethod *method) {
2004 MonoClass *klass = method->klass;
2008 return mono_metadata_token_index (method->token);
2010 mono_class_setup_methods (klass);
2011 for (i = 0; i < klass->method.count; ++i) {
2012 if (method == klass->methods [i]) {
2013 if (klass->image->uncompressed_metadata)
2014 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
2016 return klass->method.first + i + 1;