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.
11 * This file is used by the interpreter and the JIT engine to locate
12 * assemblies. Used to load AssemblyRef and later to resolve various
16 * 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/utils/mono-logger.h>
38 MonoDefaults mono_defaults;
41 * This lock protects the hash tables inside MonoImage used by the metadata
42 * loading functions in class.c and loader.c.
44 static CRITICAL_SECTION loader_mutex;
49 InitializeCriticalSection (&loader_mutex);
52 static MonoClassField*
53 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
54 MonoGenericContext *context)
57 MonoTableInfo *tables = image->tables;
59 guint32 nindex, class;
62 guint32 idx = mono_metadata_token_index (token);
65 MonoClassField *result = mono_lookup_dynamic_token (image, token);
66 *retklass = result->parent;
70 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
71 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
72 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
74 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
76 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
77 mono_metadata_decode_blob_size (ptr, &ptr);
78 /* we may want to check the signature here... */
81 case MONO_MEMBERREF_PARENT_TYPEREF:
82 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
84 g_warning ("Missing field %s in typeref index %d", fname, nindex);
87 mono_class_init (klass);
90 return mono_class_get_field_from_name (klass, fname);
91 case MONO_MEMBERREF_PARENT_TYPESPEC: {
92 /*guint32 bcols [MONO_TYPESPEC_SIZE];
96 mono_metadata_decode_row (&tables [MONO_TABLE_TYPESPEC], nindex - 1,
97 bcols, MONO_TYPESPEC_SIZE);
98 ptr = mono_metadata_blob_heap (image, bcols [MONO_TYPESPEC_SIGNATURE]);
99 len = mono_metadata_decode_value (ptr, &ptr);
100 type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
102 klass = mono_class_from_mono_type (type);
103 mono_class_init (klass);
104 g_print ("type in sig: %s\n", klass->name);*/
105 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
106 mono_class_init (klass);
109 return mono_class_get_field_from_name (klass, fname);
112 g_warning ("field load from %x", class);
118 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass,
119 MonoGenericContext *context)
123 MonoClassField *field;
125 if (image->dynamic) {
126 MonoClassField *result = mono_lookup_dynamic_token (image, token);
127 *retklass = result->parent;
132 if ((field = g_hash_table_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
133 *retklass = field->parent;
134 mono_loader_unlock ();
137 mono_loader_unlock ();
139 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF)
140 field = field_from_memberref (image, token, retklass, context);
142 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
145 k = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
151 field = mono_class_get_field (k, token);
155 if (!field->parent->generic_class)
156 g_hash_table_insert (image->field_cache, GUINT_TO_POINTER (token), field);
157 mono_loader_unlock ();
162 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
166 if (sig1->hasthis != sig2->hasthis ||
167 sig1->sentinelpos != sig2->sentinelpos)
170 for (i = 0; i < sig1->sentinelpos; i++) {
171 MonoType *p1 = sig1->params[i];
172 MonoType *p2 = sig2->params[i];
174 /*if (p1->attrs != p2->attrs)
177 if (!mono_metadata_type_equal (p1, p2))
181 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
187 find_method (MonoClass *klass, MonoClass *ic, const char* name, MonoMethodSignature *sig)
190 MonoClass *sclass = klass;
191 char *qname, *fqname;
194 qname = g_strconcat (ic->name, ".", name, NULL);
195 if (ic->name_space && ic->name_space [0])
196 fqname = g_strconcat (ic->name_space, ".", ic->name, ".", name, NULL);
200 qname = fqname = NULL;
203 for (i = 0; i < klass->method.count; ++i) {
204 MonoMethod *m = klass->methods [i];
206 if (!((fqname && !strcmp (m->name, fqname)) ||
207 (qname && !strcmp (m->name, qname)) || !strcmp (m->name, name)))
210 if (sig->call_convention == MONO_CALL_VARARG) {
211 if (mono_metadata_signature_vararg_match (sig, m->signature))
214 if (mono_metadata_signature_equal (sig, m->signature))
219 if (name [0] == '.' && (strcmp (name, ".ctor") == 0 || strcmp (name, ".cctor") == 0))
222 klass = klass->parent;
225 if (sclass->generic_class) {
229 gclass = mono_class_from_mono_type (sclass->generic_class->generic_type);
230 mono_class_init (gclass);
232 res = find_method (gclass, ic, name, sig);
235 for (i = 0; i < res->klass->method.count; ++i) {
236 if (res == res->klass->methods [i]) {
237 return sclass->methods [i];
246 * token is the method_ref or method_def token used in a call IL instruction.
249 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
251 int table = mono_metadata_token_table (token);
252 int idx = mono_metadata_token_index (token);
253 guint32 cols [MONO_MEMBERREF_SIZE];
254 MonoMethodSignature *sig;
257 /* !table is for wrappers: we should really assign their own token to them */
258 if (!table || table == MONO_TABLE_METHOD)
259 return method->signature;
261 if (table == MONO_TABLE_METHODSPEC) {
262 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) &&
263 !(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
265 g_assert (method->signature->is_inflated);
267 return method->signature;
270 if (method->klass->generic_class)
271 return method->signature;
274 /* FIXME: This might be incorrect for vararg methods */
275 return method->signature;
277 if (!(sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (token)))) {
278 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
280 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
281 mono_metadata_decode_blob_size (ptr, &ptr);
282 sig = mono_metadata_parse_method_signature_full (image, context, 0, ptr, NULL);
283 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (token), sig);
286 sig = mono_class_inflate_generic_signature (image, sig, context);
292 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
294 return mono_method_get_signature_full (method, image, token, NULL);
298 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *context)
300 MonoClass *klass = NULL;
302 MonoTableInfo *tables = image->tables;
304 guint32 nindex, class;
305 MonoGenericContainer *container = NULL;
307 MonoMethodSignature *sig;
310 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
311 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
312 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
313 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
314 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
316 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
319 case MONO_MEMBERREF_PARENT_TYPEREF:
320 klass = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | nindex);
322 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
326 case MONO_MEMBERREF_PARENT_TYPESPEC:
327 klass = mono_class_get_full (image, MONO_TOKEN_TYPE_SPEC | nindex, context);
329 g_warning ("Missing method %s in assembly %s typespec index %d", mname, image->name, nindex);
333 case MONO_MEMBERREF_PARENT_TYPEDEF:
334 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | nindex);
336 g_warning ("Missing method %s in assembly %s typedef index %d", mname, image->name, nindex);
340 case MONO_MEMBERREF_PARENT_METHODDEF:
341 return mono_get_method (image, MONO_TOKEN_METHOD_DEF | nindex, NULL);
343 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
344 g_assert_not_reached ();
347 mono_class_init (klass);
349 if (klass->generic_container)
350 container = klass->generic_container;
351 else if (klass->generic_class) {
352 g_assert (klass->generic_class->container);
353 container = klass->generic_class->container;
356 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
357 mono_metadata_decode_blob_size (ptr, &ptr);
358 sig = mono_metadata_parse_method_signature_full (image, (MonoGenericContext *) container, 0, ptr, NULL);
361 case MONO_MEMBERREF_PARENT_TYPEREF:
362 method = find_method (klass, NULL, mname, sig);
364 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
365 mono_metadata_free_method_signature (sig);
367 case MONO_MEMBERREF_PARENT_TYPESPEC: {
371 type = &klass->byval_arg;
373 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
374 method = find_method (klass, NULL, mname, sig);
376 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
377 else if (klass->generic_class && (klass != method->klass))
378 method = mono_class_inflate_generic_method (
379 method, klass->generic_class->context, klass);
380 mono_metadata_free_method_signature (sig);
384 result = (MonoMethod *)g_new0 (MonoMethodPInvoke, 1);
385 result->klass = mono_class_get (image, MONO_TOKEN_TYPE_SPEC | nindex);
386 result->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
387 result->signature = sig;
388 result->name = mname;
390 if (!strcmp (mname, ".ctor")) {
391 /* we special-case this in the runtime. */
395 if (!strcmp (mname, "Set")) {
396 g_assert (sig->hasthis);
397 g_assert (type->data.array->rank + 1 == sig->param_count);
398 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
402 if (!strcmp (mname, "Get")) {
403 g_assert (sig->hasthis);
404 g_assert (type->data.array->rank == sig->param_count);
405 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
409 if (!strcmp (mname, "Address")) {
410 g_assert (sig->hasthis);
411 g_assert (type->data.array->rank == sig->param_count);
412 result->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
416 g_assert_not_reached ();
419 case MONO_MEMBERREF_PARENT_TYPEDEF:
420 method = find_method (klass, NULL, mname, sig);
422 g_warning ("Missing method %s in assembly %s typeref index %d", mname, image->name, nindex);
423 mono_metadata_free_method_signature (sig);
426 g_error ("Memberref parent unknown: class: %d, index %d", class, nindex);
427 g_assert_not_reached ();
434 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx)
436 MonoMethod *method, *inflated;
437 MonoTableInfo *tables = image->tables;
438 MonoGenericContext *new_context = NULL;
439 MonoGenericMethod *gmethod;
440 MonoGenericContainer *container = NULL;
442 guint32 cols [MONO_METHODSPEC_SIZE];
443 guint32 token, param_count, i;
445 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
446 token = cols [MONO_METHODSPEC_METHOD];
447 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF)
448 token = MONO_TOKEN_METHOD_DEF | (token >> MONO_METHODDEFORREF_BITS);
450 token = MONO_TOKEN_MEMBER_REF | (token >> MONO_METHODDEFORREF_BITS);
452 method = mono_get_method (image, token, NULL);
454 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
456 mono_metadata_decode_value (ptr, &ptr);
458 param_count = mono_metadata_decode_value (ptr, &ptr);
460 g_assert (param_count);
461 if (method->signature->is_inflated)
462 container = ((MonoMethodNormal *) ((MonoMethodInflated *) method)->declaring)->generic_container;
464 container = ((MonoMethodNormal *) method)->generic_container;
465 g_assert (container && container->is_method);
468 g_assert (context->container);
469 container->parent = context->container;
470 if (container->parent->is_method)
471 container->parent = container->parent->parent;
474 gmethod = g_new0 (MonoGenericMethod, 1);
475 gmethod->container = container;
477 gmethod->inst = mono_metadata_parse_generic_inst (
478 image, (MonoGenericContext *) container, param_count, ptr, &ptr);
481 gmethod->inst = mono_metadata_inflate_generic_inst (gmethod->inst, context);
483 if (!container->method_hash)
484 container->method_hash = g_hash_table_new (
485 (GHashFunc)mono_metadata_generic_method_hash, (GEqualFunc)mono_metadata_generic_method_equal);
487 inflated = g_hash_table_lookup (container->method_hash, gmethod);
494 new_context = g_new0 (MonoGenericContext, 1);
495 new_context->container = container;
496 new_context->gmethod = gmethod;
498 context = new_context;
500 new_context = g_new0 (MonoGenericContext, 1);
501 new_context->container = container;
502 new_context->gmethod = gmethod;
503 new_context->gclass = context->gclass;
505 context = new_context;
508 mono_stats.generics_metadata_size += sizeof (MonoGenericMethod) +
509 sizeof (MonoGenericContext) + param_count * sizeof (MonoType);
511 inflated = mono_class_inflate_generic_method (method, context, NULL);
512 g_hash_table_insert (container->method_hash, gmethod, inflated);
515 context->gclass = inflated->klass->generic_class;
519 typedef struct MonoDllMap MonoDllMap;
528 static GHashTable *global_dll_map;
531 mono_dllmap_lookup_hash (GHashTable *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
532 MonoDllMap *map, *tmp;
541 map = g_hash_table_lookup (dll_map, dll);
543 mono_loader_unlock ();
546 *rdll = map->target? map->target: dll;
548 for (tmp = map->next; tmp; tmp = tmp->next) {
549 if (strcmp (func, tmp->name) == 0) {
553 mono_loader_unlock ();
558 mono_loader_unlock ();
563 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
566 if (assembly && assembly->dll_map) {
567 res = mono_dllmap_lookup_hash (assembly->dll_map, dll, func, rdll, rfunc);
571 return mono_dllmap_lookup_hash (global_dll_map, dll, func, rdll, rfunc);
575 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc) {
576 MonoDllMap *map, *entry;
577 GHashTable *dll_map = NULL;
583 global_dll_map = g_hash_table_new (g_str_hash, g_str_equal);
584 dll_map = global_dll_map;
586 if (!assembly->dll_map)
587 assembly->dll_map = g_hash_table_new (g_str_hash, g_str_equal);
588 dll_map = assembly->dll_map;
591 map = g_hash_table_lookup (dll_map, dll);
593 map = g_new0 (MonoDllMap, 1);
594 map->dll = g_strdup (dll);
596 map->target = g_strdup (tdll);
597 g_hash_table_insert (dll_map, map->dll, map);
600 entry = g_new0 (MonoDllMap, 1);
601 entry->name = g_strdup (func);
603 entry->target = g_strdup (tfunc);
604 if (tdll && map->target && strcmp (map->target, tdll))
605 entry->dll = g_strdup (tdll);
606 entry->next = map->next;
610 mono_loader_unlock ();
614 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
616 MonoImage *image = method->klass->image;
617 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
618 MonoTableInfo *tables = image->tables;
619 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
620 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
621 guint32 im_cols [MONO_IMPLMAP_SIZE];
623 const char *import = NULL;
624 const char *orig_scope;
625 const char *new_scope;
626 char *full_name, *file_name;
628 GModule *gmodule = NULL;
630 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
635 if (method->klass->image->dynamic) {
636 MonoReflectionMethodAux *method_aux =
637 mono_g_hash_table_lookup (
638 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
642 import = method_aux->dllentry;
643 orig_scope = method_aux->dll;
646 if (!piinfo->implmap_idx)
649 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
651 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
652 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
653 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
654 orig_scope = mono_metadata_string_heap (image, scope_token);
657 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
659 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
660 "DllImport attempting to load: '%s'.", new_scope);
668 * Try loading the module using a variety of names
670 for (i = 0; i < 3; ++i) {
673 /* Try the original name */
674 file_name = g_strdup (new_scope);
677 /* Try trimming the .dll extension */
678 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
679 file_name = g_strdup (new_scope);
680 file_name [strlen (new_scope) - 4] = '\0';
686 if (strstr (new_scope, "lib") != new_scope) {
687 file_name = g_strdup_printf ("lib%s", new_scope);
695 full_name = g_module_build_path (NULL, file_name);
696 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
697 "DllImport loading location: '%s'.", full_name);
698 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
700 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
701 "DllImport error loading library: '%s'.",
708 full_name = g_module_build_path (".", file_name);
709 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
710 "DllImport loading library: '%s'.", full_name);
711 gmodule = g_module_open (full_name, G_MODULE_BIND_LAZY);
713 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
714 "DllImport error loading library '%s'.",
721 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
722 "DllImport loading: '%s'.", file_name);
723 gmodule=g_module_open (file_name, G_MODULE_BIND_LAZY);
725 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
726 "DllImport error loading library '%s'.",
738 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
739 "DllImport unable to load library '%s'.",
743 *exc_class = "DllNotFoundException";
744 *exc_arg = new_scope;
749 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
750 g_module_symbol (gmodule, import, &piinfo->addr);
754 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
755 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
756 mangled_name = g_strconcat (import, "W", NULL);
757 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
758 g_free (mangled_name);
761 g_module_symbol (gmodule, import, &piinfo->addr);
763 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
764 g_module_symbol (gmodule, import, &piinfo->addr);
766 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
768 mangled_name = g_strconcat (import, "A", NULL);
769 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
770 g_free (mangled_name);
773 g_module_symbol (gmodule, import, &piinfo->addr);
778 #ifdef PLATFORM_WIN32
779 /* Try the stdcall mangled name */
781 /* FIX: Compute this correctly */
782 mangled_name = g_strdup_printf ("%s@%d", import, method->signature->param_count * sizeof (gpointer));
783 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
784 g_free (mangled_name);
787 mangled_name = g_strdup_printf ("_%s@%d", import, method->signature->param_count * sizeof (gpointer));
788 g_module_symbol (gmodule, mangled_name, &piinfo->addr);
789 g_free (mangled_name);
796 *exc_class = "EntryPointNotFoundException";
805 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
806 MonoGenericContext *context)
809 int table = mono_metadata_token_table (token);
810 int idx = mono_metadata_token_index (token);
811 MonoTableInfo *tables = image->tables;
812 MonoGenericContainer *generic_container = NULL, *container = NULL;
813 const char *sig = NULL;
815 guint32 cols [MONO_TYPEDEF_SIZE];
818 return mono_lookup_dynamic_token (image, token);
820 if (table != MONO_TABLE_METHOD) {
821 MonoGenericContainer *generic_container = NULL;
823 g_assert (context->container);
824 generic_container = context->container;
826 if (table == MONO_TABLE_METHODSPEC)
827 return method_from_methodspec (image, context, idx);
828 if (table != MONO_TABLE_MEMBERREF)
829 g_print("got wrong token: 0x%08x\n", token);
830 g_assert (table == MONO_TABLE_MEMBERREF);
831 result = method_from_memberref (image, idx, context);
836 mono_metadata_decode_row (&tables [table], idx - 1, cols, 6);
838 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
839 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL))
840 result = (MonoMethod *)g_new0 (MonoMethodPInvoke, 1);
842 result = (MonoMethod *)g_new0 (MonoMethodNormal, 1);
845 result->klass = klass;
846 result->flags = cols [2];
847 result->iflags = cols [1];
848 result->token = token;
849 result->name = mono_metadata_string_heap (image, cols [3]);
852 container = klass->generic_container;
854 if (!(cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
855 (!(cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) || cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
856 generic_container = mono_metadata_load_generic_params (image, token);
857 if (generic_container) {
858 generic_container->parent = container;
859 generic_container->is_method = 1;
860 container = generic_container;
864 if (!sig) /* already taken from the methodref */
865 sig = mono_metadata_blob_heap (image, cols [4]);
866 size = mono_metadata_decode_blob_size (sig, &sig);
867 result->signature = mono_metadata_parse_method_signature_full (
868 image, (MonoGenericContext *) container, idx, sig, NULL);
870 if (!result->klass) {
871 guint32 type = mono_metadata_typedef_from_method (image, token);
872 result->klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | type);
875 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
876 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
877 result->string_ctor = 1;
879 result->signature->pinvoke = 1;
880 } else if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) && (!(cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE))) {
881 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
882 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
883 MonoCallConvention conv = 0;
885 result->signature->pinvoke = 1;
886 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
887 piinfo->piflags = mono_metadata_decode_row_col (im, piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
889 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
890 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
891 conv = MONO_CALL_DEFAULT;
893 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
896 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
897 conv = MONO_CALL_STDCALL;
899 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
900 conv = MONO_CALL_THISCALL;
902 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
903 conv = MONO_CALL_FASTCALL;
905 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
906 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
908 g_warning ("unsupported calling convention");
909 g_assert_not_reached ();
911 result->signature->call_convention = conv;
913 if (result->signature->generic_param_count) {
914 MonoMethodSignature *sig = result->signature;
916 for (i = 0; i < sig->generic_param_count; i++) {
917 generic_container->type_params [i].method = result;
919 mono_class_from_generic_parameter (
920 &generic_container->type_params [i], image, TRUE);
923 if (sig->ret->type == MONO_TYPE_MVAR) {
924 int num = sig->ret->data.generic_param->num;
925 sig->ret->data.generic_param = &generic_container->type_params [num];
928 for (i = 0; i < sig->param_count; i++) {
929 MonoType *t = sig->params [i];
930 if (t->type == MONO_TYPE_MVAR) {
931 int num = t->data.generic_param->num;
932 sig->params [i]->data.generic_param = &generic_container->type_params [num];
937 /* FIXME: lazyness for generics too, but how? */
938 if (!result->klass->dummy && !(result->flags & METHOD_ATTRIBUTE_ABSTRACT) &&
939 !(result->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) && container) {
940 gpointer loc = mono_image_rva_map (image, cols [0]);
942 ((MonoMethodNormal *) result)->header = mono_metadata_parse_mh_full (
943 image, (MonoGenericContext *) container, loc);
946 ((MonoMethodNormal *) result)->generic_container = generic_container;
953 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
955 return mono_get_method_full (image, token, klass, NULL);
959 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
960 MonoGenericContext *context)
964 /* We do everything inside the lock to prevent creation races */
968 if ((result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (token)))) {
969 mono_loader_unlock ();
973 result = mono_get_method_from_token (image, token, klass, context);
975 if (!(result && result->signature->is_inflated))
976 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (token), result);
978 mono_loader_unlock ();
984 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
985 MonoGenericContext *context)
987 MonoMethod *method, *result;
988 MonoClass *ic = NULL;
992 method = mono_get_method_from_token (image, token, NULL, context);
994 mono_loader_unlock ();
998 mono_class_init (constrained_class);
1000 if ((constrained_class != method->klass) && (method->klass->interface_id != 0))
1003 result = find_method (constrained_class, ic, method->name, method->signature);
1005 g_warning ("Missing method %s in assembly %s token %x", method->name,
1006 image->name, token);
1008 mono_loader_unlock ();
1013 mono_free_method (MonoMethod *method)
1015 mono_metadata_free_method_signature (method->signature);
1016 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && ((MonoMethodNormal *)method)->header) {
1017 mono_metadata_free_mh (((MonoMethodNormal *)method)->header);
1024 mono_method_get_param_names (MonoMethod *method, const char **names)
1027 MonoClass *klass = method->klass;
1028 MonoTableInfo *methodt;
1029 MonoTableInfo *paramt;
1031 if (!method->signature->param_count)
1033 for (i = 0; i < method->signature->param_count; ++i)
1036 if (klass->generic_class) /* copy the names later */
1039 mono_class_init (klass);
1041 if (klass->image->dynamic) {
1042 MonoReflectionMethodAux *method_aux =
1043 mono_g_hash_table_lookup (
1044 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1045 if (method_aux && method_aux->param_names) {
1046 for (i = 0; i < method->signature->param_count; ++i)
1047 if (method_aux->param_names [i + 1])
1048 names [i] = method_aux->param_names [i + 1];
1053 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1054 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1055 for (i = 0; i < klass->method.count; ++i) {
1056 if (method == klass->methods [i]) {
1057 guint32 idx = klass->method.first + i;
1058 guint32 cols [MONO_PARAM_SIZE];
1059 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1061 if (idx + 1 < methodt->rows)
1062 lastp = mono_metadata_decode_row_col (methodt, idx + 1, MONO_METHOD_PARAMLIST);
1064 lastp = paramt->rows + 1;
1065 for (i = param_index; i < lastp; ++i) {
1066 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1067 if (cols [MONO_PARAM_SEQUENCE]) /* skip return param spec */
1068 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
1076 mono_method_get_param_token (MonoMethod *method, int index)
1079 MonoClass *klass = method->klass;
1080 MonoTableInfo *methodt;
1082 if (klass->generic_class)
1083 g_assert_not_reached ();
1085 mono_class_init (klass);
1087 if (klass->image->dynamic) {
1088 g_assert_not_reached ();
1091 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1092 for (i = 0; i < klass->method.count; ++i) {
1093 if (method == klass->methods [i]) {
1094 guint32 idx = klass->method.first + i;
1095 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1097 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
1105 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
1108 MonoClass *klass = method->klass;
1109 MonoTableInfo *methodt;
1110 MonoTableInfo *paramt;
1112 for (i = 0; i < method->signature->param_count + 1; ++i)
1115 if (method->klass->image->dynamic) {
1116 MonoReflectionMethodAux *method_aux =
1117 mono_g_hash_table_lookup (
1118 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1119 if (method_aux && method_aux->param_marshall) {
1120 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1121 for (i = 0; i < method->signature->param_count + 1; ++i)
1122 if (dyn_specs [i]) {
1123 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
1124 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
1130 mono_class_init (klass);
1132 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1133 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1135 for (i = 0; i < klass->method.count; ++i) {
1136 if (method == klass->methods [i]) {
1137 guint32 idx = klass->method.first + i;
1138 guint32 cols [MONO_PARAM_SIZE];
1139 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1141 if (idx + 1 < methodt->rows)
1142 lastp = mono_metadata_decode_row_col (methodt, idx + 1, MONO_METHOD_PARAMLIST);
1144 lastp = paramt->rows + 1;
1146 for (i = param_index; i < lastp; ++i) {
1147 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1149 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL) {
1151 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
1153 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
1163 mono_method_has_marshal_info (MonoMethod *method)
1166 MonoClass *klass = method->klass;
1167 MonoTableInfo *methodt;
1168 MonoTableInfo *paramt;
1170 if (method->klass->image->dynamic) {
1171 MonoReflectionMethodAux *method_aux =
1172 mono_g_hash_table_lookup (
1173 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1174 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
1176 for (i = 0; i < method->signature->param_count + 1; ++i)
1183 mono_class_init (klass);
1185 methodt = &klass->image->tables [MONO_TABLE_METHOD];
1186 paramt = &klass->image->tables [MONO_TABLE_PARAM];
1188 for (i = 0; i < klass->method.count; ++i) {
1189 if (method == klass->methods [i]) {
1190 guint32 idx = klass->method.first + i;
1191 guint32 cols [MONO_PARAM_SIZE];
1192 guint param_index = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
1194 if (idx + 1 < methodt->rows)
1195 lastp = mono_metadata_decode_row_col (methodt, idx + 1, MONO_METHOD_PARAMLIST);
1197 lastp = paramt->rows + 1;
1199 for (i = param_index; i < lastp; ++i) {
1200 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
1202 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
1212 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
1215 g_assert (method != NULL);
1216 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
1218 if (!(l = g_list_nth (((MonoMethodWrapper *)method)->data, id - 1)))
1219 g_assert_not_reached ();
1225 default_stack_walk (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) {
1226 g_error ("stack walk not installed");
1229 static MonoStackWalkImpl stack_walk = default_stack_walk;
1232 mono_stack_walk (MonoStackWalk func, gpointer user_data)
1234 stack_walk (func, FALSE, user_data);
1238 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
1240 stack_walk (func, TRUE, user_data);
1244 mono_install_stack_walk (MonoStackWalkImpl func)
1250 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
1252 MonoMethod **dest = data;
1254 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
1260 mono_method_get_last_managed (void)
1262 MonoMethod *m = NULL;
1263 stack_walk (last_managed, FALSE, &m);
1268 mono_loader_lock (void)
1270 EnterCriticalSection (&loader_mutex);
1274 mono_loader_unlock (void)
1276 LeaveCriticalSection (&loader_mutex);
1279 MonoMethodSignature*
1280 mono_method_signature (MonoMethod *method)
1282 return method->signature;
1286 mono_method_get_name (MonoMethod *method)
1288 return method->name;
1292 mono_method_get_class (MonoMethod *method)
1294 return method->klass;
1298 mono_method_get_token (MonoMethod *method)
1300 return method->token;
1304 mono_method_get_header (MonoMethod *method)
1310 MonoMethodNormal* mn = (MonoMethodNormal*) method;
1313 if (G_LIKELY (mn->header))
1319 if (method->klass->dummy || (method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
1322 mono_loader_lock ();
1325 mono_loader_unlock ();
1329 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
1330 idx = mono_metadata_token_index (method->token);
1331 img = method->klass->image;
1332 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
1333 loc = mono_image_rva_map (img, rva);
1337 mn->header = mono_metadata_parse_mh_full (img, (MonoGenericContext *) mn->generic_container, loc);
1339 mono_loader_unlock ();
1344 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
1347 *iflags = method->iflags;
1348 return method->flags;