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: {
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)) || !strcmp (m->name, name)))
476 if (sig->call_convention == MONO_CALL_VARARG) {
477 if (mono_metadata_signature_vararg_match (sig, mono_method_signature (m)))
480 if (mono_metadata_signature_equal (sig, mono_method_signature (m)))
485 if (i < in_class->method.count) {
486 mono_class_setup_methods (from_class);
487 g_assert (from_class->method.count == in_class->method.count);
488 return from_class->methods [i];
494 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class)
497 char *qname, *fqname, *class_name;
498 gboolean is_interface;
499 MonoMethod *result = NULL;
501 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
504 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
506 qname = g_strconcat (class_name, ".", name, NULL);
507 if (ic->name_space && ic->name_space [0])
508 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
512 class_name = qname = fqname = NULL;
515 g_assert (from_class);
516 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class);
520 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
523 g_assert (from_class->interface_count == in_class->interface_count);
524 for (i = 0; i < in_class->interface_count; i++) {
525 MonoClass *ic = in_class->interfaces [i];
526 MonoClass *from_ic = from_class->interfaces [i];
528 result = find_method_in_class (ic, name, qname, fqname, sig, from_ic);
533 in_class = in_class->parent;
534 from_class = from_class->parent;
536 g_assert (!in_class == !from_class);
539 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class);
548 static MonoMethodSignature*
549 inflate_generic_signature (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context)
551 MonoMethodSignature *res;
558 res = mono_metadata_signature_alloc (image, sig->param_count);
559 res->ret = mono_class_inflate_generic_type (sig->ret, context);
560 is_open = mono_class_is_open_constructed_type (res->ret);
561 for (i = 0; i < sig->param_count; ++i) {
562 res->params [i] = mono_class_inflate_generic_type (sig->params [i], context);
564 is_open = mono_class_is_open_constructed_type (res->params [i]);
566 res->hasthis = sig->hasthis;
567 res->explicit_this = sig->explicit_this;
568 res->call_convention = sig->call_convention;
569 res->pinvoke = sig->pinvoke;
570 res->generic_param_count = sig->generic_param_count;
571 res->sentinelpos = sig->sentinelpos;
572 res->has_type_parameters = is_open;
573 res->is_inflated = 1;
577 static MonoMethodHeader*
578 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
580 MonoMethodHeader *res;
582 res = g_malloc0 (sizeof (MonoMethodHeader) + sizeof (gpointer) * header->num_locals);
583 res->code = header->code;
584 res->code_size = header->code_size;
585 res->max_stack = header->max_stack;
586 res->num_clauses = header->num_clauses;
587 res->init_locals = header->init_locals;
588 res->num_locals = header->num_locals;
589 res->clauses = header->clauses;
590 for (i = 0; i < header->num_locals; ++i)
591 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
592 if (res->num_clauses) {
593 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
594 for (i = 0; i < header->num_clauses; ++i) {
595 MonoExceptionClause *clause = &res->clauses [i];
597 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
599 t = mono_class_inflate_generic_type (&clause->data.catch_class->byval_arg, context);
600 clause->data.catch_class = mono_class_from_mono_type (t);
607 * token is the method_ref or method_def token used in a call IL instruction.
610 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
612 int table = mono_metadata_token_table (token);
613 int idx = mono_metadata_token_index (token);
614 guint32 cols [MONO_MEMBERREF_SIZE];
615 MonoMethodSignature *sig, *prev_sig;
618 /* !table is for wrappers: we should really assign their own token to them */
619 if (!table || table == MONO_TABLE_METHOD)
620 return mono_method_signature (method);
622 if (table == MONO_TABLE_METHODSPEC) {
623 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
624 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
625 mono_method_signature (method));
626 g_assert (method->is_inflated);
628 return mono_method_signature (method);
631 if (method->klass->generic_class)
632 return mono_method_signature (method);
635 /* FIXME: This might be incorrect for vararg methods */
636 return mono_method_signature (method);
639 sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
640 mono_loader_unlock ();
642 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
644 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
645 mono_metadata_decode_blob_size (ptr, &ptr);
646 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
649 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token));
651 /* Somebody got in before us */
652 /* FIXME: Free sig */
656 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
657 mono_loader_unlock ();
660 sig = inflate_generic_signature (image, sig, context);
666 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
668 return mono_method_get_signature_full (method, image, token, NULL);
671 /* this is only for the typespec array methods */
673 search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
676 for (i = 0; i < klass->method.count; ++i) {
677 MonoMethod *method = klass->methods [i];
678 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
685 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
686 gboolean *used_context)
688 MonoClass *klass = NULL;
689 MonoMethod *method = NULL;
690 MonoTableInfo *tables = image->tables;
692 guint32 nindex, class;
694 MonoMethodSignature *sig;
697 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
698 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
699 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
700 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
701 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
703 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
706 * Whether we actually used the `typespec_context' or not.
707 * This is used to tell our caller whether or not it's safe to insert the returned
708 * method into a cache.
711 *used_context = class == MONO_MEMBERREF_PARENT_TYPESPEC;
714 case MONO_MEMBERREF_PARENT_TYPEREF:
715 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
717 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_REF | nindex);
718 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
719 mono_loader_set_error_method_load (name, mname);
724 case MONO_MEMBERREF_PARENT_TYPESPEC:
726 * Parse the TYPESPEC in the parent's context.
728 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context);
730 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_SPEC | nindex);
731 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
732 mono_loader_set_error_method_load (name, mname);
737 case MONO_MEMBERREF_PARENT_TYPEDEF:
738 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
740 char *name = mono_class_name_from_token (image, MONO_TOKEN_TYPE_DEF | nindex);
741 g_warning ("Missing method %s in assembly %s, type %s", mname, image->name, name);
742 mono_loader_set_error_method_load (name, mname);
747 case MONO_MEMBERREF_PARENT_METHODDEF:
748 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
752 /* This message leaks */
753 char *message = g_strdup_printf ("Memberref parent unknown: class: %d, index %d", class, nindex);
754 mono_loader_set_error_method_load ("", message);
760 mono_class_init (klass);
762 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
763 mono_metadata_decode_blob_size (ptr, &ptr);
765 sig = mono_metadata_parse_method_signature (image, 0, ptr, NULL);
770 case MONO_MEMBERREF_PARENT_TYPEREF:
771 case MONO_MEMBERREF_PARENT_TYPEDEF:
772 method = find_method (klass, NULL, mname, sig, klass);
775 case MONO_MEMBERREF_PARENT_TYPESPEC: {
779 type = &klass->byval_arg;
781 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
782 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
783 method = find_method (in_class, NULL, mname, sig, klass);
787 /* we're an array and we created these methods already in klass in mono_class_init () */
788 result = search_in_array_class (klass, mname, sig);
792 g_assert_not_reached ();
796 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
797 g_assert_not_reached ();
801 char *msig = mono_signature_get_desc (sig, FALSE);
802 char * class_name = mono_type_get_name (&klass->byval_arg);
803 GString *s = g_string_new (mname);
804 if (sig->generic_param_count)
805 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
806 g_string_append_printf (s, "(%s)", msig);
808 msig = g_string_free (s, FALSE);
811 "Missing method %s::%s in assembly %s, referenced in assembly %s",
812 class_name, msig, klass->image->name, image->name);
813 mono_loader_set_error_method_load (class_name, mname);
817 mono_metadata_free_method_signature (sig);
823 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
825 MonoMethod *method, *inflated;
827 MonoTableInfo *tables = image->tables;
828 MonoGenericContext new_context;
829 MonoGenericInst *inst;
830 MonoGenericContainer *container = NULL;
832 guint32 cols [MONO_METHODSPEC_SIZE];
833 guint32 token, nindex, param_count;
835 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
836 token = cols [MONO_METHODSPEC_METHOD];
837 nindex = token >> MONO_METHODDEFORREF_BITS;
839 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
841 mono_metadata_decode_value (ptr, &ptr);
843 param_count = mono_metadata_decode_value (ptr, &ptr);
844 g_assert (param_count);
847 * Be careful with the two contexts here:
849 * ----------------------------------------
851 * static void Hello<T> (S s, T t) { }
853 * static void Test<U> (U u) {
854 * Foo<U>.Hello<string> (u, "World");
857 * ----------------------------------------
859 * Let's assume we're currently JITing Foo<int>.Test<long>
860 * (ie. `S' is instantiated as `int' and `U' is instantiated as `long').
862 * The call to Hello() is encoded with a MethodSpec with a TypeSpec as parent
863 * (MONO_MEMBERREF_PARENT_TYPESPEC).
865 * The TypeSpec is encoded as `Foo<!!0>', so we need to parse it in the current
866 * context (S=int, U=long) to get the correct `Foo<long>'.
868 * After that, we parse the memberref signature in the new context
869 * (S=int, T=uninstantiated) and get the open generic method `Foo<long>.Hello<T>'.
872 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
873 method = mono_get_method_full (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context);
875 method = method_from_memberref (image, nindex, context, NULL);
877 method = mono_get_inflated_method (method);
879 klass = method->klass;
881 /* FIXME: Is this invalid metadata? Should we throw an exception instead? */
882 g_assert (!klass->generic_container);
884 if (klass->generic_class) {
885 g_assert (method->is_inflated);
886 method = ((MonoMethodInflated *) method)->declaring;
889 container = method->generic_container;
890 g_assert (container);
892 new_context.class_inst = klass->generic_class ? klass->generic_class->context.class_inst : NULL;
895 * When parsing the methodspec signature, we're in the old context again:
897 * ----------------------------------------
899 * static void Hello<T> (T t) { }
901 * static void Test<U> (U u) {
905 * ----------------------------------------
907 * Let's assume we're currently JITing "Foo.Test<float>".
909 * In this case, we already parsed the memberref as "Foo.Hello<T>" and the methodspec
910 * signature is "<!!0>". This means that we must instantiate the method type parameter
911 * `T' from the new method with the method type parameter `U' from the current context;
912 * ie. instantiate the method as `Foo.Hello<float>.
915 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr);
917 if (context && inst->is_open)
918 inst = mono_metadata_inflate_generic_inst (inst, context);
920 new_context.method_inst = inst;
922 if (!container->method_hash)
923 container->method_hash = g_hash_table_new (
924 (GHashFunc)mono_metadata_generic_context_hash, (GEqualFunc)mono_metadata_generic_context_equal);
926 inflated = g_hash_table_lookup (container->method_hash, &new_context);
930 mono_stats.generics_metadata_size += param_count * sizeof (MonoType);
932 inflated = mono_class_inflate_generic_method_full (method, klass, &new_context);
933 g_hash_table_insert (container->method_hash, mono_method_get_context (inflated), inflated);
946 static MonoDllMap *global_dll_map;
949 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
960 * we use the first entry we find that matches, since entries from
961 * the config file are prepended to the list and we document that the
964 for (; dll_map; dll_map = dll_map->next) {
965 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
966 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
968 } else if (strcmp (dll_map->dll, dll)) {
971 if (!found && dll_map->target) {
972 *rdll = dll_map->target;
974 /* we don't quit here, because we could find a full
975 * entry that matches also function and that has priority.
978 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
979 *rfunc = dll_map->target_func;
984 mono_loader_unlock ();
989 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
992 if (assembly && assembly->dll_map) {
993 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
997 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
1001 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
1004 mono_loader_lock ();
1007 entry = g_malloc0 (sizeof (MonoDllMap));
1008 entry->dll = dll? g_strdup (dll): NULL;
1009 entry->target = tdll? g_strdup (tdll): NULL;
1010 entry->func = func? g_strdup (func): NULL;
1011 entry->target_func = tfunc? g_strdup (tfunc): NULL;
1012 entry->next = global_dll_map;
1013 global_dll_map = entry;
1015 MonoMemPool *mpool = assembly->mempool;
1016 entry = mono_mempool_alloc0 (mpool, sizeof (MonoDllMap));
1017 entry->dll = dll? mono_mempool_strdup (mpool, dll): NULL;
1018 entry->target = tdll? mono_mempool_strdup (mpool, tdll): NULL;
1019 entry->func = func? mono_mempool_strdup (mpool, func): NULL;
1020 entry->target_func = tfunc? mono_mempool_strdup (mpool, tfunc): NULL;
1021 entry->next = assembly->dll_map;
1022 assembly->dll_map = entry;
1025 mono_loader_unlock ();
1028 static GHashTable *global_module_map;
1031 cached_module_load (const char *name, int flags, char **err)
1034 mono_loader_lock ();
1035 if (!global_module_map)
1036 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1037 res = g_hash_table_lookup (global_module_map, name);
1040 mono_loader_unlock ();
1043 res = mono_dl_open (name, flags, err);
1045 g_hash_table_insert (global_module_map, g_strdup (name), res);
1046 mono_loader_unlock ();
1051 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1053 MonoImage *image = method->klass->image;
1054 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1055 MonoTableInfo *tables = image->tables;
1056 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1057 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1058 guint32 im_cols [MONO_IMPLMAP_SIZE];
1059 guint32 scope_token;
1060 const char *import = NULL;
1061 const char *orig_scope;
1062 const char *new_scope;
1064 char *full_name, *file_name;
1066 MonoDl *module = NULL;
1068 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1071 return piinfo->addr;
1073 if (method->klass->image->dynamic) {
1074 MonoReflectionMethodAux *method_aux =
1075 g_hash_table_lookup (
1076 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1080 import = method_aux->dllentry;
1081 orig_scope = method_aux->dll;
1084 if (!piinfo->implmap_idx)
1087 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1089 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1090 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1091 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1092 orig_scope = mono_metadata_string_heap (image, scope_token);
1095 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1097 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1098 "DllImport attempting to load: '%s'.", new_scope);
1105 /* we allow a special name to dlopen from the running process namespace */
1106 if (strcmp (new_scope, "__Internal") == 0)
1107 module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1110 * Try loading the module using a variety of names
1112 for (i = 0; i < 4; ++i) {
1115 /* Try the original name */
1116 file_name = g_strdup (new_scope);
1119 /* Try trimming the .dll extension */
1120 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1121 file_name = g_strdup (new_scope);
1122 file_name [strlen (new_scope) - 4] = '\0';
1128 if (strstr (new_scope, "lib") != new_scope) {
1129 file_name = g_strdup_printf ("lib%s", new_scope);
1135 #ifndef PLATFORM_WIN32
1136 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1137 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1138 !g_ascii_strcasecmp ("user32", new_scope) ||
1139 !g_ascii_strcasecmp ("kernel", new_scope)) {
1140 file_name = g_strdup ("libMonoSupportW.so");
1144 #ifndef PLATFORM_WIN32
1151 while ((full_name = mono_dl_build_path (NULL, file_name, &iter))) {
1152 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1153 "DllImport loading location: '%s'.", full_name);
1154 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1156 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1157 "DllImport error loading library: '%s'.",
1169 while ((full_name = mono_dl_build_path (".", file_name, &iter))) {
1170 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1171 "DllImport loading library: '%s'.", full_name);
1172 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1174 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1175 "DllImport error loading library '%s'.",
1186 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1187 "DllImport loading: '%s'.", file_name);
1188 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1190 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1191 "DllImport error loading library '%s'.",
1203 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1204 "DllImport unable to load library '%s'.",
1209 *exc_class = "DllNotFoundException";
1210 *exc_arg = new_scope;
1215 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1216 "Searching for '%s'.", import);
1218 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1219 error_msg = mono_dl_symbol (module, import, &piinfo->addr);
1221 char *mangled_name = NULL, *mangled_name2 = NULL;
1224 int mangle_param_count;
1225 #ifdef PLATFORM_WIN32
1230 * Search using a variety of mangled names
1232 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1233 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1234 gboolean need_param_count = FALSE;
1235 #ifdef PLATFORM_WIN32
1236 if (mangle_stdcall > 0)
1237 need_param_count = TRUE;
1239 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1244 mangled_name = (char*)import;
1245 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1246 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1247 /* Try the mangled name first */
1248 if (mangle_charset == 0)
1249 mangled_name = g_strconcat (import, "W", NULL);
1251 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1252 #ifdef PLATFORM_WIN32
1253 if (mangle_charset == 0)
1254 mangled_name = g_strconcat (import, "W", NULL);
1256 /* Try the mangled name last */
1257 if (mangle_charset == 1)
1258 mangled_name = g_strconcat (import, "A", NULL);
1261 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1263 /* Try the mangled name last */
1264 if (mangle_charset == 1)
1265 mangled_name = g_strconcat (import, "A", NULL);
1269 #ifdef PLATFORM_WIN32
1270 if (mangle_param_count == 0)
1271 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1273 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1274 param_count = mangle_param_count;
1276 /* Try the stdcall mangled name */
1278 * gcc under windows creates mangled names without the underscore, but MS.NET
1279 * doesn't support it, so we doesn't support it either.
1281 if (mangle_stdcall == 1)
1282 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1284 mangled_name2 = mangled_name;
1286 mangled_name2 = mangled_name;
1289 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1290 "Probing '%s'.", mangled_name2);
1292 error_msg = mono_dl_symbol (module, mangled_name2, &piinfo->addr);
1295 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1296 "Found as '%s'.", mangled_name2);
1298 if (mangled_name != mangled_name2)
1299 g_free (mangled_name2);
1300 if (mangled_name != import)
1301 g_free (mangled_name);
1307 if (!piinfo->addr) {
1310 *exc_class = "EntryPointNotFoundException";
1315 return piinfo->addr;
1319 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1320 MonoGenericContext *context, gboolean *used_context)
1323 int table = mono_metadata_token_table (token);
1324 int idx = mono_metadata_token_index (token);
1325 MonoTableInfo *tables = image->tables;
1326 MonoGenericContainer *generic_container = NULL, *container = NULL;
1327 const char *sig = NULL;
1329 guint32 cols [MONO_TYPEDEF_SIZE];
1332 return mono_lookup_dynamic_token (image, token);
1334 if (table != MONO_TABLE_METHOD) {
1335 if (table == MONO_TABLE_METHODSPEC) {
1336 if (used_context) *used_context = TRUE;
1337 return method_from_methodspec (image, context, idx);
1339 if (table != MONO_TABLE_MEMBERREF)
1340 g_print("got wrong token: 0x%08x\n", token);
1341 g_assert (table == MONO_TABLE_MEMBERREF);
1342 return method_from_memberref (image, idx, context, used_context);
1345 if (used_context) *used_context = FALSE;
1347 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1349 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1350 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
1351 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodPInvoke));
1353 result = (MonoMethod *)mono_mempool_alloc0 (image->mempool, sizeof (MonoMethodNormal));
1355 mono_stats.method_count ++;
1358 guint32 type = mono_metadata_typedef_from_method (image, token);
1359 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
1365 result->klass = klass;
1366 result->flags = cols [2];
1367 result->iflags = cols [1];
1368 result->token = token;
1369 result->name = mono_metadata_string_heap (image, cols [3]);
1371 container = klass->generic_container;
1372 generic_container = mono_metadata_load_generic_params (image, token, container);
1373 if (generic_container) {
1374 generic_container->owner.method = result;
1376 mono_metadata_load_generic_param_constraints (image, token, generic_container);
1378 for (i = 0; i < generic_container->type_argc; i++)
1379 mono_class_from_generic_parameter (&generic_container->type_params [i], image, TRUE);
1381 container = generic_container;
1385 if (!sig) /* already taken from the methodref */
1386 sig = mono_metadata_blob_heap (image, cols [4]);
1387 size = mono_metadata_decode_blob_size (sig, &sig);
1389 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1390 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1391 result->string_ctor = 1;
1392 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1393 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1394 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1396 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1397 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1400 /* FIXME: lazyness for generics too, but how? */
1401 if (!(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
1402 !(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
1403 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
1404 gpointer loc = mono_image_rva_map (image, cols [0]);
1406 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (image, container, loc);
1409 result->generic_container = generic_container;
1415 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1417 return mono_get_method_full (image, token, klass, NULL);
1421 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1422 MonoGenericContext *context)
1425 gboolean used_context = FALSE;
1427 /* We do everything inside the lock to prevent creation races */
1429 mono_loader_lock ();
1431 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
1432 mono_loader_unlock ();
1436 result = mono_get_method_from_token (image, token, klass, context, &used_context);
1438 //printf ("GET: %s\n", mono_method_full_name (result, TRUE));
1441 g_message (G_STRLOC ": %s - %d - %d", mono_method_full_name (result, TRUE),
1442 result->is_inflated, used_context);
1446 * `used_context' specifies whether or not mono_get_method_from_token() actually
1447 * used the `context' to get the method. See bug #80969.
1450 if (!used_context && !(result && result->is_inflated))
1451 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
1453 mono_loader_unlock ();
1459 * mono_get_method_constrained:
1461 * This is used when JITing the `constrained.' opcode.
1463 * This returns two values: the contrained method, which has been inflated
1464 * as the function return value; And the original CIL-stream method as
1465 * declared in cil_method. The later is used for verification.
1468 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
1469 MonoGenericContext *context, MonoMethod **cil_method)
1471 MonoMethod *method, *result;
1472 MonoClass *ic = NULL;
1473 MonoGenericContext *class_context = NULL, *method_context = NULL;
1474 MonoMethodSignature *sig;
1476 mono_loader_lock ();
1478 *cil_method = mono_get_method_from_token (image, token, NULL, context, NULL);
1480 mono_loader_unlock ();
1484 mono_class_init (constrained_class);
1485 method = mono_get_inflated_method (*cil_method);
1486 sig = mono_method_signature (method);
1488 if (method->is_inflated && sig->generic_param_count) {
1489 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1490 sig = mono_method_signature (imethod->declaring);
1491 method_context = mono_method_get_context (method);
1494 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1497 if (constrained_class->generic_class)
1498 class_context = mono_class_get_context (constrained_class);
1500 result = find_method (constrained_class, ic, method->name, sig, constrained_class);
1502 g_warning ("Missing method %s.%s.%s in assembly %s token %x", method->klass->name_space,
1503 method->klass->name, method->name, image->name, token);
1504 mono_loader_unlock ();
1509 result = mono_class_inflate_generic_method (result, class_context);
1511 result = mono_class_inflate_generic_method (result, method_context);
1513 mono_loader_unlock ();
1518 mono_free_method (MonoMethod *method)
1520 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
1523 if (method->signature) {
1525 * FIXME: This causes crashes because the types inside signatures and
1526 * locals are shared.
1528 /* mono_metadata_free_method_signature (method->signature); */
1529 /* g_free (method->signature); */
1532 if (method->dynamic) {
1533 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
1536 g_free ((char*)method->name);
1537 if (mw->method.header) {
1538 g_free ((char*)mw->method.header->code);
1539 for (i = 0; i < mw->method.header->num_locals; ++i)
1540 g_free (mw->method.header->locals [i]);
1541 g_free (mw->method.header->clauses);
1542 g_free (mw->method.header);
1544 g_free (mw->method_data);
1545 g_free (method->signature);
1551 mono_method_get_param_names (MonoMethod *method, const char **names)
1554 MonoClass *klass = method->klass;
1555 MonoTableInfo *methodt;
1556 MonoTableInfo *paramt;
1559 if (!mono_method_signature (method)->param_count)
1561 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1564 if (klass->generic_class || klass->rank) /* copy the names later */
1567 mono_class_init (klass);
1569 if (klass->image->dynamic) {
1570 MonoReflectionMethodAux *method_aux =
1571 g_hash_table_lookup (
1572 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1573 if (method_aux && method_aux->param_names) {
1574 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
1575 if (method_aux->param_names [i + 1])
1576 names [i] = method_aux->param_names [i + 1];
1581 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1582 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1583 idx = mono_method_get_index (method);
1585 guint32 cols [MONO_PARAM_SIZE];
1588 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1590 if (idx < methodt->rows)
1591 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1593 lastp = paramt->rows + 1;
1594 for (i = param_index; i < lastp; ++i) {
1595 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1596 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1597 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1604 mono_method_get_param_token (MonoMethod *method, int index)
1606 MonoClass *klass = method->klass;
1607 MonoTableInfo *methodt;
1610 if (klass->generic_class)
1611 g_assert_not_reached ();
1613 mono_class_init (klass);
1615 if (klass->image->dynamic) {
1616 g_assert_not_reached ();
1619 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1620 idx = mono_method_get_index (method);
1622 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1624 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1631 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1634 MonoClass *klass = method->klass;
1635 MonoTableInfo *methodt;
1636 MonoTableInfo *paramt;
1639 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1642 if (method->klass->image->dynamic) {
1643 MonoReflectionMethodAux *method_aux =
1644 g_hash_table_lookup (
1645 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1646 if (method_aux && method_aux->param_marshall) {
1647 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1648 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1649 if (dyn_specs [i]) {
1650 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1651 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1657 mono_class_init (klass);
1659 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1660 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1661 idx = mono_method_get_index (method);
1663 guint32 cols [MONO_PARAM_SIZE];
1664 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1666 if (idx < methodt->rows)
1667 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1669 lastp = paramt->rows + 1;
1671 for (i = param_index; i < lastp; ++i) {
1672 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1674 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1676 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1678 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1687 mono_method_has_marshal_info (MonoMethod *method)
1690 MonoClass *klass = method->klass;
1691 MonoTableInfo *methodt;
1692 MonoTableInfo *paramt;
1695 if (method->klass->image->dynamic) {
1696 MonoReflectionMethodAux *method_aux =
1697 g_hash_table_lookup (
1698 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1699 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1701 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
1708 mono_class_init (klass);
1710 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1711 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1712 idx = mono_method_get_index (method);
1714 guint32 cols [MONO_PARAM_SIZE];
1715 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
1717 if (idx + 1 < methodt->rows)
1718 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1720 lastp = paramt->rows + 1;
1722 for (i = param_index; i < lastp; ++i) {
1723 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1725 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1734 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1737 g_assert (method != NULL);
1738 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1740 data = ((MonoMethodWrapper *)method)->method_data;
1741 g_assert (data != NULL);
1742 g_assert (id <= GPOINTER_TO_UINT (*data));
1747 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1748 g_error ("stack walk not installed");
1751 static MonoStackWalkImpl stack_walk = default_stack_walk;
1754 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1756 stack_walk (func, TRUE, user_data);
1760 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1762 stack_walk (func, FALSE, user_data);
1766 mono_install_stack_walk (MonoStackWalkImpl func)
1772 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1774 MonoMethod **dest = data;
1776 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1782 mono_method_get_last_managed (void)
1784 MonoMethod *m = NULL;
1785 stack_walk (last_managed, FALSE, &m);
1790 mono_loader_lock (void)
1792 EnterCriticalSection (&loader_mutex);
1796 mono_loader_unlock (void)
1798 LeaveCriticalSection (&loader_mutex);
1802 * mono_method_signature:
1804 * Return the signature of the method M. On failure, returns NULL.
1806 MonoMethodSignature*
1807 mono_method_signature (MonoMethod *m)
1813 gboolean can_cache_signature;
1814 MonoGenericContainer *container;
1818 return m->signature;
1820 mono_loader_lock ();
1823 mono_loader_unlock ();
1824 return m->signature;
1827 if (m->is_inflated) {
1828 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
1829 MonoMethodSignature *signature;
1830 /* the lock is recursive */
1831 signature = mono_method_signature (imethod->declaring);
1832 m->signature = inflate_generic_signature (imethod->declaring->klass->image, signature, mono_method_get_context (m));
1833 mono_loader_unlock ();
1834 return m->signature;
1837 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
1838 idx = mono_metadata_token_index (m->token);
1839 img = m->klass->image;
1841 sig = mono_metadata_blob_heap (img, mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
1843 g_assert (!m->klass->generic_class);
1844 container = m->generic_container;
1846 container = m->klass->generic_container;
1848 /* Generic signatures depend on the container so they cannot be cached */
1849 /* icall/pinvoke signatures cannot be cached cause we modify them below */
1850 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
1852 /* If the method has parameter attributes, that can modify the signature */
1853 pattrs = mono_metadata_get_param_attrs (img, idx);
1855 can_cache_signature = FALSE;
1859 if (can_cache_signature)
1860 m->signature = g_hash_table_lookup (img->method_signatures, sig);
1862 if (!m->signature) {
1863 const char *sig_body;
1865 size = mono_metadata_decode_blob_size (sig, &sig_body);
1867 m->signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL);
1868 if (!m->signature) {
1869 mono_loader_unlock ();
1873 if (can_cache_signature)
1874 g_hash_table_insert (img->method_signatures, (gpointer)sig, m->signature);
1877 /* Verify metadata consistency */
1878 if (m->signature->generic_param_count) {
1879 if (!container || !container->is_method)
1880 g_error ("Signature claims method has generic parameters, but generic_params table says it doesn't");
1881 if (container->type_argc != m->signature->generic_param_count)
1882 g_error ("Inconsistent generic parameter count. Signature says %d, generic_params table says %d",
1883 m->signature->generic_param_count, container->type_argc);
1884 } else if (container && container->is_method && container->type_argc)
1885 g_error ("generic_params table claims method has generic parameters, but signature says it doesn't");
1887 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
1888 m->signature->pinvoke = 1;
1889 else if ((m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(m->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
1890 MonoCallConvention conv = 0;
1891 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
1892 m->signature->pinvoke = 1;
1894 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
1895 case 0: /* no call conv, so using default */
1896 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
1897 conv = MONO_CALL_DEFAULT;
1899 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
1902 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
1903 conv = MONO_CALL_STDCALL;
1905 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
1906 conv = MONO_CALL_THISCALL;
1908 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
1909 conv = MONO_CALL_FASTCALL;
1911 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
1912 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
1914 g_warning ("unsupported calling convention : 0x%04x", piinfo->piflags);
1915 g_assert_not_reached ();
1917 m->signature->call_convention = conv;
1920 mono_loader_unlock ();
1921 return m->signature;
1925 mono_method_get_name (MonoMethod *method)
1927 return method->name;
1931 mono_method_get_class (MonoMethod *method)
1933 return method->klass;
1937 mono_method_get_token (MonoMethod *method)
1939 return method->token;
1943 mono_method_get_header (MonoMethod *method)
1949 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1951 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))
1955 if (G_LIKELY (mn->header))
1961 mono_loader_lock ();
1964 mono_loader_unlock ();
1968 if (method->is_inflated) {
1969 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1970 MonoMethodHeader *header;
1971 /* the lock is recursive */
1972 header = mono_method_get_header (imethod->declaring);
1973 mn->header = inflate_generic_header (header, mono_method_get_context (method));
1974 mono_loader_unlock ();
1978 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1979 idx = mono_metadata_token_index (method->token);
1980 img = method->klass->image;
1981 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1982 loc = mono_image_rva_map (img, rva);
1986 mn->header = mono_metadata_parse_mh_full (img, method->generic_container, loc);
1988 mono_loader_unlock ();
1993 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1996 *iflags = method->iflags;
1997 return method->flags;
2001 * Find the method index in the metadata methodDef table.
2004 mono_method_get_index (MonoMethod *method) {
2005 MonoClass *klass = method->klass;
2009 return mono_metadata_token_index (method->token);
2011 mono_class_setup_methods (klass);
2012 for (i = 0; i < klass->method.count; ++i) {
2013 if (method == klass->methods [i]) {
2014 if (klass->image->uncompressed_metadata)
2015 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
2017 return klass->method.first + i + 1;