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 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
10 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
11 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
13 * This file is used by the interpreter and the JIT engine to locate
14 * assemblies. Used to load AssemblyRef and later to resolve various
18 * This should keep track of the assembly versions that we are loading.
26 #include <mono/metadata/metadata.h>
27 #include <mono/metadata/image.h>
28 #include <mono/metadata/assembly.h>
29 #include <mono/metadata/tokentype.h>
30 #include <mono/metadata/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/metadata/profiler-private.h>
38 #include <mono/metadata/exception.h>
39 #include <mono/metadata/marshal.h>
40 #include <mono/metadata/lock-tracer.h>
41 #include <mono/metadata/verify-internals.h>
42 #include <mono/utils/mono-logger-internals.h>
43 #include <mono/utils/mono-dl.h>
44 #include <mono/utils/mono-membar.h>
45 #include <mono/utils/mono-counters.h>
46 #include <mono/utils/mono-error-internals.h>
47 #include <mono/utils/mono-tls.h>
48 #include <mono/utils/mono-path.h>
50 MonoDefaults mono_defaults;
53 * This lock protects the hash tables inside MonoImage used by the metadata
54 * loading functions in class.c and loader.c.
56 * See domain-internals.h for locking policy in combination with the
59 static MonoCoopMutex loader_mutex;
60 static mono_mutex_t global_loader_data_mutex;
61 static gboolean loader_lock_inited;
64 static guint32 inflated_signatures_size;
65 static guint32 memberref_sig_cache_size;
66 static guint32 methods_size;
67 static guint32 signatures_size;
70 * This TLS variable contains the last type load error encountered by the loader.
72 MonoNativeTlsKey loader_error_thread_id;
75 * This TLS variable holds how many times the current thread has acquired the loader
78 MonoNativeTlsKey loader_lock_nest_id;
80 static void dllmap_cleanup (void);
84 global_loader_data_lock (void)
86 mono_locks_os_acquire (&global_loader_data_mutex, LoaderGlobalDataLock);
90 global_loader_data_unlock (void)
92 mono_locks_os_release (&global_loader_data_mutex, LoaderGlobalDataLock);
98 static gboolean inited;
101 mono_coop_mutex_init_recursive (&loader_mutex);
102 mono_os_mutex_init_recursive (&global_loader_data_mutex);
103 loader_lock_inited = TRUE;
105 mono_native_tls_alloc (&loader_error_thread_id, NULL);
106 mono_native_tls_alloc (&loader_lock_nest_id, NULL);
108 mono_counters_init ();
109 mono_counters_register ("Inflated signatures size",
110 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_signatures_size);
111 mono_counters_register ("Memberref signature cache size",
112 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &memberref_sig_cache_size);
113 mono_counters_register ("MonoMethod size",
114 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &methods_size);
115 mono_counters_register ("MonoMethodSignature size",
116 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &signatures_size);
123 mono_loader_cleanup (void)
127 mono_native_tls_free (loader_error_thread_id);
128 mono_native_tls_free (loader_lock_nest_id);
130 mono_coop_mutex_destroy (&loader_mutex);
131 mono_os_mutex_destroy (&global_loader_data_mutex);
132 loader_lock_inited = FALSE;
136 * Handling of type load errors should be done as follows:
138 * If something could not be loaded, the loader should call one of the
139 * mono_loader_set_error_XXX functions ()
140 * with the appropriate arguments, then return NULL to report the failure. The error
141 * should be propagated until it reaches code which can throw managed exceptions. At that
142 * point, an exception should be thrown based on the information returned by
143 * mono_loader_get_last_error (). Then the error should be cleared by calling
144 * mono_loader_clear_error ().
148 set_loader_error (MonoLoaderError *error)
150 mono_loader_clear_error ();
151 mono_native_tls_set_value (loader_error_thread_id, error);
155 * mono_loader_set_error_assembly_load:
157 * Set the loader error for this thread.
160 mono_loader_set_error_assembly_load (const char *assembly_name, gboolean ref_only)
162 MonoLoaderError *error;
164 if (mono_loader_get_last_error ())
167 error = g_new0 (MonoLoaderError, 1);
168 error->exception_type = MONO_EXCEPTION_FILE_NOT_FOUND;
169 error->assembly_name = g_strdup (assembly_name);
170 error->ref_only = ref_only;
173 * This is not strictly needed, but some (most) of the loader code still
174 * can't deal with load errors, and this message is more helpful than an
178 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY, "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);
180 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_ASSEMBLY, "Could not load file or assembly '%s' or one of its dependencies.", assembly_name);
182 set_loader_error (error);
186 * mono_loader_set_error_type_load:
188 * Set the loader error for this thread.
191 mono_loader_set_error_type_load (const char *class_name, const char *assembly_name)
193 MonoLoaderError *error;
195 if (mono_loader_get_last_error ())
198 error = g_new0 (MonoLoaderError, 1);
199 error->exception_type = MONO_EXCEPTION_TYPE_LOAD;
200 error->class_name = g_strdup (class_name);
201 error->assembly_name = g_strdup (assembly_name);
204 * This is not strictly needed, but some (most) of the loader code still
205 * can't deal with load errors, and this message is more helpful than an
208 mono_trace_warning (MONO_TRACE_TYPE, "The class %s could not be loaded, used in %s", class_name, assembly_name);
210 set_loader_error (error);
214 * mono_loader_set_error_method_load:
216 * Set the loader error for this thread. MEMBER_NAME should point to a string
220 mono_loader_set_error_method_load (const char *class_name, const char *member_name)
222 MonoLoaderError *error;
224 /* FIXME: Store the signature as well */
225 if (mono_loader_get_last_error ())
228 error = g_new0 (MonoLoaderError, 1);
229 error->exception_type = MONO_EXCEPTION_MISSING_METHOD;
230 error->class_name = g_strdup (class_name);
231 error->member_name = member_name;
233 set_loader_error (error);
237 * mono_loader_set_error_field_load:
239 * Set the loader error for this thread. MEMBER_NAME should point to a string
243 mono_loader_set_error_field_load (MonoClass *klass, const char *member_name)
245 MonoLoaderError *error;
247 /* FIXME: Store the signature as well */
248 if (mono_loader_get_last_error ())
251 error = g_new0 (MonoLoaderError, 1);
252 error->exception_type = MONO_EXCEPTION_MISSING_FIELD;
253 error->klass = klass;
254 error->member_name = member_name;
256 set_loader_error (error);
260 * mono_loader_set_error_bad_image:
262 * Set the loader error for this thread.
265 mono_loader_set_error_bad_image (char *msg)
267 MonoLoaderError *error;
269 if (mono_loader_get_last_error ())
272 error = g_new0 (MonoLoaderError, 1);
273 error->exception_type = MONO_EXCEPTION_BAD_IMAGE;
276 set_loader_error (error);
281 * mono_loader_get_last_error:
283 * Returns information about the last type load exception encountered by the loader, or
284 * NULL. After use, the exception should be cleared by calling mono_loader_clear_error.
287 mono_loader_get_last_error (void)
289 return (MonoLoaderError*)mono_native_tls_get_value (loader_error_thread_id);
293 mono_loader_assert_no_error (void)
295 MonoLoaderError *error = mono_loader_get_last_error ();
298 g_print ("Unhandled loader error: %x, %s %s %s\n", error->exception_type, error->msg, error->assembly_name, error->class_name);
299 g_assert_not_reached ();
304 * mono_loader_clear_error:
306 * Disposes any loader error messages on this thread
309 mono_loader_clear_error (void)
311 MonoLoaderError *ex = (MonoLoaderError*)mono_native_tls_get_value (loader_error_thread_id);
314 g_free (ex->class_name);
315 g_free (ex->assembly_name);
319 mono_native_tls_set_value (loader_error_thread_id, NULL);
324 * mono_loader_error_prepare_exception:
325 * @error: The MonoLoaderError to turn into an exception
327 * This turns a MonoLoaderError into an exception that can be thrown
328 * and resets the Mono Loader Error state during this process.
332 mono_loader_error_prepare_exception (MonoLoaderError *error)
334 MonoException *ex = NULL;
336 switch (error->exception_type) {
337 case MONO_EXCEPTION_TYPE_LOAD: {
338 char *cname = g_strdup (error->class_name);
339 char *aname = g_strdup (error->assembly_name);
340 MonoString *class_name;
342 mono_loader_clear_error ();
344 class_name = mono_string_new (mono_domain_get (), cname);
346 ex = mono_get_exception_type_load (class_name, aname);
351 case MONO_EXCEPTION_MISSING_METHOD: {
352 char *cname = g_strdup (error->class_name);
353 char *aname = g_strdup (error->member_name);
355 mono_loader_clear_error ();
356 ex = mono_get_exception_missing_method (cname, aname);
362 case MONO_EXCEPTION_MISSING_FIELD: {
364 char *cmembername = g_strdup (error->member_name);
366 class_name = mono_type_get_full_name (error->klass);
368 class_name = g_strdup ("");
370 mono_loader_clear_error ();
372 ex = mono_get_exception_missing_field (class_name, cmembername);
374 g_free (cmembername);
378 case MONO_EXCEPTION_FILE_NOT_FOUND: {
383 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);
385 msg = g_strdup_printf ("Could not load file or assembly '%s' or one of its dependencies.", error->assembly_name);
386 filename = g_strdup (error->assembly_name);
387 /* Has to call this before calling anything which might call mono_class_init () */
388 mono_loader_clear_error ();
389 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), filename));
395 case MONO_EXCEPTION_BAD_IMAGE: {
396 char *msg = g_strdup (error->msg);
397 mono_loader_clear_error ();
398 ex = mono_get_exception_bad_image_format (msg);
404 g_assert_not_reached ();
411 * find_cached_memberref_sig:
413 * Return a cached copy of the memberref signature identified by SIG_IDX.
414 * We use a gpointer since the cache stores both MonoTypes and MonoMethodSignatures.
415 * A cache is needed since the type/signature parsing routines allocate everything
416 * from a mempool, so without a cache, multiple requests for the same signature would
417 * lead to unbounded memory growth. For normal methods/fields this is not a problem
418 * since the resulting methods/fields are cached, but inflated methods/fields cannot
420 * LOCKING: Acquires the loader lock.
423 find_cached_memberref_sig (MonoImage *image, guint32 sig_idx)
427 mono_image_lock (image);
428 res = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
429 mono_image_unlock (image);
435 cache_memberref_sig (MonoImage *image, guint32 sig_idx, gpointer sig)
439 mono_image_lock (image);
440 prev_sig = g_hash_table_lookup (image->memberref_signatures, GUINT_TO_POINTER (sig_idx));
442 /* Somebody got in before us */
446 g_hash_table_insert (image->memberref_signatures, GUINT_TO_POINTER (sig_idx), sig);
447 /* An approximation based on glib 2.18 */
448 memberref_sig_cache_size += sizeof (gpointer) * 4;
450 mono_image_unlock (image);
455 static MonoClassField*
456 field_from_memberref (MonoImage *image, guint32 token, MonoClass **retklass,
457 MonoGenericContext *context, MonoError *error)
459 MonoClass *klass = NULL;
460 MonoClassField *field;
461 MonoTableInfo *tables = image->tables;
464 guint32 nindex, class_index;
467 guint32 idx = mono_metadata_token_index (token);
469 mono_error_init (error);
471 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
472 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
473 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
475 fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
477 if (!mono_verifier_verify_memberref_field_signature (image, cols [MONO_MEMBERREF_SIGNATURE], NULL)) {
478 mono_error_set_bad_image (error, image, "Bad field '%s' signature 0x%08x", class_index, token);
482 switch (class_index) {
483 case MONO_MEMBERREF_PARENT_TYPEDEF:
484 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
486 case MONO_MEMBERREF_PARENT_TYPEREF:
487 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
489 case MONO_MEMBERREF_PARENT_TYPESPEC:
490 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, context, error);
493 mono_error_set_bad_image (error, image, "Bad field field '%s' signature 0x%08x", class_index, token);
499 ptr = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
500 mono_metadata_decode_blob_size (ptr, &ptr);
501 /* we may want to check the signature here... */
504 mono_error_set_field_load (error, klass, fname, "Bad field signature class token %08x field name %s token %08x", class_index, fname, token);
508 /* FIXME: This needs a cache, especially for generic instances, since
509 * mono_metadata_parse_type () allocates everything from a mempool.
511 sig_type = (MonoType *)find_cached_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE]);
513 sig_type = mono_metadata_parse_type (image, MONO_PARSE_TYPE, 0, ptr, &ptr);
514 if (sig_type == NULL) {
515 mono_error_set_field_load (error, klass, fname, "Could not parse field '%s' signature %08x", fname, token);
518 sig_type = (MonoType *)cache_memberref_sig (image, cols [MONO_MEMBERREF_SIGNATURE], sig_type);
521 mono_class_init (klass); /*FIXME is this really necessary?*/
524 field = mono_class_get_field_from_name_full (klass, fname, sig_type);
527 mono_loader_assert_no_error ();
528 mono_error_set_field_load (error, klass, fname, "Could not find field '%s'", fname);
535 * mono_field_from_token:
536 * @deprecated use the _checked variant
537 * Notes: runtime code MUST not use this function
540 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context)
543 MonoClassField *res = mono_field_from_token_checked (image, token, retklass, context, &error);
544 g_assert (mono_error_ok (&error));
549 mono_field_from_token_checked (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context, MonoError *error)
553 MonoClassField *field;
555 mono_error_init (error);
557 if (image_is_dynamic (image)) {
558 MonoClassField *result;
559 MonoClass *handle_class;
562 result = (MonoClassField *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context);
563 // This checks the memberref type as well
564 if (!result || handle_class != mono_defaults.fieldhandle_class) {
565 mono_error_set_bad_image (error, image, "Bad field token 0x%08x", token);
568 *retklass = result->parent;
572 if ((field = (MonoClassField *)mono_conc_hashtable_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
573 *retklass = field->parent;
577 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF) {
578 field = field_from_memberref (image, token, retklass, context, error);
579 mono_loader_assert_no_error ();
581 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
583 mono_error_set_bad_image (error, image, "Invalid field token 0x%08x", token);
586 k = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
593 field = mono_class_get_field (k, token);
595 if (mono_loader_get_last_error ())
596 mono_error_set_from_loader_error (error);
598 mono_error_set_bad_image (error, image, "Could not resolve field token 0x%08x", token);
602 if (field && field->parent && !field->parent->generic_class && !field->parent->generic_container) {
603 mono_image_lock (image);
604 mono_conc_hashtable_insert (image->field_cache, GUINT_TO_POINTER (token), field);
605 mono_image_unlock (image);
608 mono_loader_assert_no_error ();
613 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
617 if (sig1->hasthis != sig2->hasthis ||
618 sig1->sentinelpos != sig2->sentinelpos)
621 for (i = 0; i < sig1->sentinelpos; i++) {
622 MonoType *p1 = sig1->params[i];
623 MonoType *p2 = sig2->params[i];
625 /*if (p1->attrs != p2->attrs)
628 if (!mono_metadata_type_equal (p1, p2))
632 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
638 find_method_in_class (MonoClass *klass, const char *name, const char *qname, const char *fqname,
639 MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
643 /* Search directly in the metadata to avoid calling setup_methods () */
644 mono_error_init (error);
646 /* FIXME: !from_class->generic_class condition causes test failures. */
647 if (klass->type_token && !image_is_dynamic (klass->image) && !klass->methods && !klass->rank && klass == from_class && !from_class->generic_class) {
648 for (i = 0; i < klass->method.count; ++i) {
649 guint32 cols [MONO_METHOD_SIZE];
652 MonoMethodSignature *other_sig;
654 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
656 m_name = mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]);
658 if (!((fqname && !strcmp (m_name, fqname)) ||
659 (qname && !strcmp (m_name, qname)) ||
660 (name && !strcmp (m_name, name))))
663 method = mono_get_method_checked (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass, NULL, error);
664 if (!mono_error_ok (error)) //bail out if we hit a loader error
667 other_sig = mono_method_signature_checked (method, error);
668 if (!mono_error_ok (error)) //bail out if we hit a loader error
670 if (other_sig && (sig->call_convention != MONO_CALL_VARARG) && mono_metadata_signature_equal (sig, other_sig))
676 mono_class_setup_methods (klass); /* FIXME don't swallow the error here. */
678 We can't fail lookup of methods otherwise the runtime will fail with MissingMethodException instead of TypeLoadException.
679 See mono/tests/generic-type-load-exception.2.il
680 FIXME we should better report this error to the caller
682 if (!klass->methods || klass->exception_type) {
683 mono_error_set_type_load_class (error, klass, "Could not find method due to a type load error"); //FIXME get the error from the class
687 for (i = 0; i < klass->method.count; ++i) {
688 MonoMethod *m = klass->methods [i];
689 MonoMethodSignature *msig;
691 /* We must cope with failing to load some of the types. */
695 if (!((fqname && !strcmp (m->name, fqname)) ||
696 (qname && !strcmp (m->name, qname)) ||
697 (name && !strcmp (m->name, name))))
699 msig = mono_method_signature_checked (m, error);
700 if (!mono_error_ok (error)) //bail out if we hit a loader error
706 if (sig->call_convention == MONO_CALL_VARARG) {
707 if (mono_metadata_signature_vararg_match (sig, msig))
710 if (mono_metadata_signature_equal (sig, msig))
715 if (i < klass->method.count)
716 return mono_class_get_method_by_index (from_class, i);
721 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
724 char *qname, *fqname, *class_name;
725 gboolean is_interface;
726 MonoMethod *result = NULL;
727 MonoClass *initial_class = in_class;
729 mono_error_init (error);
730 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
733 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
735 qname = g_strconcat (class_name, ".", name, NULL);
736 if (ic->name_space && ic->name_space [0])
737 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
741 class_name = qname = fqname = NULL;
744 g_assert (from_class);
745 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class, error);
746 if (result || !mono_error_ok (error))
749 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
753 * This happens when we fail to lazily load the interfaces of one of the types.
754 * On such case we can't just bail out since user code depends on us trying harder.
756 if (from_class->interface_offsets_count != in_class->interface_offsets_count) {
757 in_class = in_class->parent;
758 from_class = from_class->parent;
762 for (i = 0; i < in_class->interface_offsets_count; i++) {
763 MonoClass *in_ic = in_class->interfaces_packed [i];
764 MonoClass *from_ic = from_class->interfaces_packed [i];
765 char *ic_qname, *ic_fqname, *ic_class_name;
767 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
768 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
769 if (in_ic->name_space && in_ic->name_space [0])
770 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
774 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic, error);
775 g_free (ic_class_name);
778 if (result || !mono_error_ok (error))
782 in_class = in_class->parent;
783 from_class = from_class->parent;
785 g_assert (!in_class == !from_class);
788 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class, error);
790 //we did not find the method
791 if (!result && mono_error_ok (error)) {
792 char *desc = mono_signature_get_desc (sig, FALSE);
793 mono_error_set_method_load (error, initial_class, name, "Could not find method with signature %s", desc);
804 static MonoMethodSignature*
805 inflate_generic_signature_checked (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
807 MonoMethodSignature *res;
811 mono_error_init (error);
815 res = (MonoMethodSignature *)g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)sig->param_count) * sizeof (MonoType*));
816 res->param_count = sig->param_count;
817 res->sentinelpos = -1;
818 res->ret = mono_class_inflate_generic_type_checked (sig->ret, context, error);
819 if (!mono_error_ok (error))
821 is_open = mono_class_is_open_constructed_type (res->ret);
822 for (i = 0; i < sig->param_count; ++i) {
823 res->params [i] = mono_class_inflate_generic_type_checked (sig->params [i], context, error);
824 if (!mono_error_ok (error))
828 is_open = mono_class_is_open_constructed_type (res->params [i]);
830 res->hasthis = sig->hasthis;
831 res->explicit_this = sig->explicit_this;
832 res->call_convention = sig->call_convention;
833 res->pinvoke = sig->pinvoke;
834 res->generic_param_count = sig->generic_param_count;
835 res->sentinelpos = sig->sentinelpos;
836 res->has_type_parameters = is_open;
837 res->is_inflated = 1;
842 mono_metadata_free_type (res->ret);
843 for (i = 0; i < sig->param_count; ++i) {
845 mono_metadata_free_type (res->params [i]);
852 * mono_inflate_generic_signature:
854 * Inflate SIG with CONTEXT, and return a canonical copy. On error, set ERROR, and return NULL.
857 mono_inflate_generic_signature (MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
859 MonoMethodSignature *res, *cached;
861 res = inflate_generic_signature_checked (NULL, sig, context, error);
862 if (!mono_error_ok (error))
864 cached = mono_metadata_get_inflated_signature (res, context);
866 mono_metadata_free_inflated_signature (res);
870 static MonoMethodHeader*
871 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
873 MonoMethodHeader *res;
875 res = (MonoMethodHeader *)g_malloc0 (MONO_SIZEOF_METHOD_HEADER + sizeof (gpointer) * header->num_locals);
876 res->code = header->code;
877 res->code_size = header->code_size;
878 res->max_stack = header->max_stack;
879 res->num_clauses = header->num_clauses;
880 res->init_locals = header->init_locals;
881 res->num_locals = header->num_locals;
882 res->clauses = header->clauses;
883 for (i = 0; i < header->num_locals; ++i)
884 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
885 if (res->num_clauses) {
886 res->clauses = (MonoExceptionClause *)g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
887 for (i = 0; i < header->num_clauses; ++i) {
888 MonoExceptionClause *clause = &res->clauses [i];
889 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
891 clause->data.catch_class = mono_class_inflate_generic_class (clause->data.catch_class, context);
898 * token is the method_ref/def/spec token used in a call IL instruction.
899 * @deprecated use the _checked variant
900 * Notes: runtime code MUST not use this function
903 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
906 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, context, &error);
907 g_assert (mono_error_ok (&error));
912 mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error)
914 int table = mono_metadata_token_table (token);
915 int idx = mono_metadata_token_index (token);
917 guint32 cols [MONO_MEMBERREF_SIZE];
918 MonoMethodSignature *sig;
921 mono_error_init (error);
923 /* !table is for wrappers: we should really assign their own token to them */
924 if (!table || table == MONO_TABLE_METHOD)
925 return mono_method_signature_checked (method, error);
927 if (table == MONO_TABLE_METHODSPEC) {
928 /* the verifier (do_invoke_method) will turn the NULL into a verifier error */
929 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || !method->is_inflated)
932 return mono_method_signature_checked (method, error);
935 if (method->klass->generic_class)
936 return mono_method_signature_checked (method, error);
938 if (image_is_dynamic (image)) {
939 sig = mono_reflection_lookup_signature (image, method, token, error);
943 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
944 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
946 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
948 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
949 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
950 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
952 //FIXME include the verification error
953 mono_error_set_bad_image (error, image, "Bad method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
957 ptr = mono_metadata_blob_heap (image, sig_idx);
958 mono_metadata_decode_blob_size (ptr, &ptr);
960 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
964 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
966 /* FIXME: we probably should verify signature compat in the dynamic case too*/
967 if (!mono_verifier_is_sig_compatible (image, method, sig)) {
968 guint32 klass = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
969 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
971 mono_error_set_bad_image (error, image, "Incompatible method signature class token 0x%08x field name %s token 0x%08x", klass, fname, token);
977 MonoMethodSignature *cached;
979 /* This signature is not owned by a MonoMethod, so need to cache */
980 sig = inflate_generic_signature_checked (image, sig, context, error);
981 if (!mono_error_ok (error))
984 cached = mono_metadata_get_inflated_signature (sig, context);
986 mono_metadata_free_inflated_signature (sig);
988 inflated_signatures_size += mono_metadata_signature_size (cached);
992 g_assert (mono_error_ok (error));
997 * token is the method_ref/def/spec token used in a call IL instruction.
998 * @deprecated use the _checked variant
999 * Notes: runtime code MUST not use this function
1001 MonoMethodSignature*
1002 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
1005 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, NULL, &error);
1006 g_assert (mono_error_ok (&error));
1010 /* this is only for the typespec array methods */
1012 mono_method_search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
1016 mono_class_setup_methods (klass);
1017 g_assert (!klass->exception_type); /*FIXME this should not fail, right?*/
1018 for (i = 0; i < klass->method.count; ++i) {
1019 MonoMethod *method = klass->methods [i];
1020 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
1027 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
1028 gboolean *used_context, MonoError *error)
1030 MonoClass *klass = NULL;
1031 MonoMethod *method = NULL;
1032 MonoTableInfo *tables = image->tables;
1034 guint32 nindex, class_index, sig_idx;
1036 MonoMethodSignature *sig;
1039 mono_error_init (error);
1041 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
1042 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
1043 class_index = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
1044 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
1045 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
1047 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
1050 * Whether we actually used the `typespec_context' or not.
1051 * This is used to tell our caller whether or not it's safe to insert the returned
1052 * method into a cache.
1055 *used_context = class_index == MONO_MEMBERREF_PARENT_TYPESPEC;
1057 switch (class_index) {
1058 case MONO_MEMBERREF_PARENT_TYPEREF:
1059 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
1063 case MONO_MEMBERREF_PARENT_TYPESPEC:
1065 * Parse the TYPESPEC in the parent's context.
1067 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context, error);
1071 case MONO_MEMBERREF_PARENT_TYPEDEF:
1072 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
1076 case MONO_MEMBERREF_PARENT_METHODDEF: {
1077 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, NULL, error);
1083 mono_error_set_bad_image (error, image, "Memberref parent unknown: class: %d, index %d", class_index, nindex);
1088 mono_class_init (klass);
1090 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
1092 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
1093 mono_error_set_method_load (error, klass, mname, "Verifier rejected method signature");
1097 ptr = mono_metadata_blob_heap (image, sig_idx);
1098 mono_metadata_decode_blob_size (ptr, &ptr);
1100 sig = (MonoMethodSignature *)find_cached_memberref_sig (image, sig_idx);
1102 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
1106 sig = (MonoMethodSignature *)cache_memberref_sig (image, sig_idx, sig);
1109 switch (class_index) {
1110 case MONO_MEMBERREF_PARENT_TYPEREF:
1111 case MONO_MEMBERREF_PARENT_TYPEDEF:
1112 method = find_method (klass, NULL, mname, sig, klass, error);
1115 case MONO_MEMBERREF_PARENT_TYPESPEC: {
1118 type = &klass->byval_arg;
1120 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
1121 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
1122 method = find_method (in_class, NULL, mname, sig, klass, error);
1126 /* we're an array and we created these methods already in klass in mono_class_init () */
1127 method = mono_method_search_in_array_class (klass, mname, sig);
1131 mono_error_set_bad_image (error, image,"Memberref parent unknown: class: %d, index %d", class_index, nindex);
1135 if (!method && mono_error_ok (error)) {
1136 char *msig = mono_signature_get_desc (sig, FALSE);
1137 GString *s = g_string_new (mname);
1138 if (sig->generic_param_count)
1139 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
1140 g_string_append_printf (s, "(%s)", msig);
1142 msig = g_string_free (s, FALSE);
1144 if (mono_loader_get_last_error ()) /* FIXME find_method and mono_method_search_in_array_class can leak a loader error */
1145 mono_error_set_from_loader_error (error);
1147 mono_error_set_method_load (error, klass, mname, "Could not find method %s", msig);
1152 mono_loader_assert_no_error ();
1156 mono_loader_assert_no_error ();
1157 g_assert (!mono_error_ok (error));
1162 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx, MonoError *error)
1166 MonoTableInfo *tables = image->tables;
1167 MonoGenericContext new_context;
1168 MonoGenericInst *inst;
1170 guint32 cols [MONO_METHODSPEC_SIZE];
1171 guint32 token, nindex, param_count;
1173 mono_error_init (error);
1175 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
1176 token = cols [MONO_METHODSPEC_METHOD];
1177 nindex = token >> MONO_METHODDEFORREF_BITS;
1179 if (!mono_verifier_verify_methodspec_signature (image, cols [MONO_METHODSPEC_SIGNATURE], NULL)) {
1180 mono_error_set_bad_image (error, image, "Bad method signals signature 0x%08x", idx);
1184 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
1186 mono_metadata_decode_value (ptr, &ptr);
1188 param_count = mono_metadata_decode_value (ptr, &ptr);
1190 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr, error);
1194 if (context && inst->is_open) {
1195 inst = mono_metadata_inflate_generic_inst (inst, context, error);
1196 if (!mono_error_ok (error))
1200 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF) {
1201 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context, error);
1205 method = method_from_memberref (image, nindex, context, NULL, error);
1211 klass = method->klass;
1213 if (klass->generic_class) {
1214 g_assert (method->is_inflated);
1215 method = ((MonoMethodInflated *) method)->declaring;
1218 new_context.class_inst = klass->generic_class ? klass->generic_class->context.class_inst : NULL;
1219 new_context.method_inst = inst;
1221 method = mono_class_inflate_generic_method_full_checked (method, klass, &new_context, error);
1222 mono_loader_assert_no_error ();
1226 struct _MonoDllMap {
1234 static MonoDllMap *global_dll_map;
1237 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
1245 global_loader_data_lock ();
1248 * we use the first entry we find that matches, since entries from
1249 * the config file are prepended to the list and we document that the
1250 * later entries win.
1252 for (; dll_map; dll_map = dll_map->next) {
1253 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
1254 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
1256 } else if (strcmp (dll_map->dll, dll)) {
1259 if (!found && dll_map->target) {
1260 *rdll = dll_map->target;
1262 /* we don't quit here, because we could find a full
1263 * entry that matches also function and that has priority.
1266 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
1267 *rfunc = dll_map->target_func;
1272 global_loader_data_unlock ();
1277 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
1280 if (assembly && assembly->dll_map) {
1281 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
1285 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
1289 * mono_dllmap_insert:
1290 * @assembly: if NULL, this is a global mapping, otherwise the remapping of the dynamic library will only apply to the specified assembly
1291 * @dll: The name of the external library, as it would be found in the DllImport declaration. If prefixed with 'i:' the matching of the library name is done without case sensitivity
1292 * @func: if not null, the mapping will only applied to the named function (the value of EntryPoint)
1293 * @tdll: The name of the library to map the specified @dll if it matches.
1294 * @tfunc: if func is not NULL, the name of the function that replaces the invocation
1296 * LOCKING: Acquires the loader lock.
1298 * This function is used to programatically add DllImport remapping in either
1299 * a specific assembly, or as a global remapping. This is done by remapping
1300 * references in a DllImport attribute from the @dll library name into the @tdll
1301 * name. If the @dll name contains the prefix "i:", the comparison of the
1302 * library name is done without case sensitivity.
1304 * If you pass @func, this is the name of the EntryPoint in a DllImport if specified
1305 * or the name of the function as determined by DllImport. If you pass @func, you
1306 * must also pass @tfunc which is the name of the target function to invoke on a match.
1309 * mono_dllmap_insert (NULL, "i:libdemo.dll", NULL, relocated_demo_path, NULL);
1311 * The above will remap DllImport statments for "libdemo.dll" and "LIBDEMO.DLL" to
1312 * the contents of relocated_demo_path for all assemblies in the Mono process.
1314 * NOTE: This can be called before the runtime is initialized, for example from
1315 * mono_config_parse ().
1318 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc)
1322 mono_loader_init ();
1325 entry = (MonoDllMap *)g_malloc0 (sizeof (MonoDllMap));
1326 entry->dll = dll? g_strdup (dll): NULL;
1327 entry->target = tdll? g_strdup (tdll): NULL;
1328 entry->func = func? g_strdup (func): NULL;
1329 entry->target_func = tfunc? g_strdup (tfunc): NULL;
1331 global_loader_data_lock ();
1332 entry->next = global_dll_map;
1333 global_dll_map = entry;
1334 global_loader_data_unlock ();
1336 entry = (MonoDllMap *)mono_image_alloc0 (assembly, sizeof (MonoDllMap));
1337 entry->dll = dll? mono_image_strdup (assembly, dll): NULL;
1338 entry->target = tdll? mono_image_strdup (assembly, tdll): NULL;
1339 entry->func = func? mono_image_strdup (assembly, func): NULL;
1340 entry->target_func = tfunc? mono_image_strdup (assembly, tfunc): NULL;
1342 mono_image_lock (assembly);
1343 entry->next = assembly->dll_map;
1344 assembly->dll_map = entry;
1345 mono_image_unlock (assembly);
1350 free_dllmap (MonoDllMap *map)
1353 MonoDllMap *next = map->next;
1356 g_free (map->target);
1358 g_free (map->target_func);
1365 dllmap_cleanup (void)
1367 free_dllmap (global_dll_map);
1368 global_dll_map = NULL;
1371 static GHashTable *global_module_map;
1374 cached_module_load (const char *name, int flags, char **err)
1380 global_loader_data_lock ();
1381 if (!global_module_map)
1382 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1383 res = (MonoDl *)g_hash_table_lookup (global_module_map, name);
1385 global_loader_data_unlock ();
1388 res = mono_dl_open (name, flags, err);
1390 g_hash_table_insert (global_module_map, g_strdup (name), res);
1391 global_loader_data_unlock ();
1395 static MonoDl *internal_module;
1398 is_absolute_path (const char *path)
1400 #ifdef PLATFORM_MACOSX
1401 if (!strncmp (path, "@executable_path/", 17) || !strncmp (path, "@loader_path/", 13) ||
1402 !strncmp (path, "@rpath/", 7))
1405 return g_path_is_absolute (path);
1409 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1411 MonoImage *image = method->klass->image;
1412 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1413 MonoTableInfo *tables = image->tables;
1414 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1415 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1416 guint32 im_cols [MONO_IMPLMAP_SIZE];
1417 guint32 scope_token;
1418 const char *import = NULL;
1419 const char *orig_scope;
1420 const char *new_scope;
1422 char *full_name, *file_name, *found_name = NULL;
1424 MonoDl *module = NULL;
1425 gboolean cached = FALSE;
1427 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1435 return piinfo->addr;
1437 if (image_is_dynamic (method->klass->image)) {
1438 MonoReflectionMethodAux *method_aux =
1439 (MonoReflectionMethodAux *)g_hash_table_lookup (
1440 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1444 import = method_aux->dllentry;
1445 orig_scope = method_aux->dll;
1448 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
1451 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1453 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
1456 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1457 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1458 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1459 orig_scope = mono_metadata_string_heap (image, scope_token);
1462 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1465 mono_image_lock (image);
1466 if (!image->pinvoke_scopes) {
1467 image->pinvoke_scopes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1468 image->pinvoke_scope_filenames = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1470 module = (MonoDl *)g_hash_table_lookup (image->pinvoke_scopes, new_scope);
1471 found_name = (char *)g_hash_table_lookup (image->pinvoke_scope_filenames, new_scope);
1472 mono_image_unlock (image);
1476 found_name = g_strdup (found_name);
1480 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1481 "DllImport attempting to load: '%s'.", new_scope);
1483 /* we allow a special name to dlopen from the running process namespace */
1484 if (strcmp (new_scope, "__Internal") == 0){
1485 if (internal_module == NULL)
1486 internal_module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1487 module = internal_module;
1492 * Try loading the module using a variety of names
1494 for (i = 0; i < 5; ++i) {
1495 char *base_name = NULL, *dir_name = NULL;
1496 gboolean is_absolute = is_absolute_path (new_scope);
1500 /* Try the original name */
1501 file_name = g_strdup (new_scope);
1504 /* Try trimming the .dll extension */
1505 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1506 file_name = g_strdup (new_scope);
1507 file_name [strlen (new_scope) - 4] = '\0';
1514 dir_name = g_path_get_dirname (new_scope);
1515 base_name = g_path_get_basename (new_scope);
1516 if (strstr (base_name, "lib") != base_name) {
1517 char *tmp = g_strdup_printf ("lib%s", base_name);
1520 file_name = g_strdup_printf ("%s%s%s", dir_name, G_DIR_SEPARATOR_S, base_name);
1523 } else if (strstr (new_scope, "lib") != new_scope) {
1524 file_name = g_strdup_printf ("lib%s", new_scope);
1529 if (!is_absolute && mono_dl_get_system_dir ()) {
1530 dir_name = (char*)mono_dl_get_system_dir ();
1531 file_name = g_path_get_basename (new_scope);
1537 #ifndef TARGET_WIN32
1538 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1539 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1540 !g_ascii_strcasecmp ("user32", new_scope) ||
1541 !g_ascii_strcasecmp ("kernel", new_scope)) {
1542 file_name = g_strdup ("libMonoSupportW.so");
1546 #ifndef TARGET_WIN32
1553 dir_name = g_path_get_dirname (file_name);
1555 base_name = g_path_get_basename (file_name);
1558 if (!module && is_absolute) {
1559 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1561 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1562 "DllImport error loading library '%s': '%s'.",
1563 file_name, error_msg);
1566 found_name = g_strdup (file_name);
1570 if (!module && !is_absolute) {
1574 for (j = 0; j < 3; ++j) {
1579 mdirname = g_path_get_dirname (image->name);
1581 case 1: /* @executable_path@/../lib */
1585 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1587 char *base, *newbase;
1590 resolvedname = mono_path_resolve_symlinks (buf);
1592 base = g_path_get_dirname (resolvedname);
1593 newbase = g_path_get_dirname(base);
1594 mdirname = g_strdup_printf ("%s/lib", newbase);
1596 g_free (resolvedname);
1603 case 2: /* @executable_path@/../Libraries */
1607 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1609 char *base, *newbase;
1612 resolvedname = mono_path_resolve_symlinks (buf);
1614 base = g_path_get_dirname (resolvedname);
1615 newbase = g_path_get_dirname(base);
1616 mdirname = g_strdup_printf ("%s/Libraries", newbase);
1618 g_free (resolvedname);
1630 while ((full_name = mono_dl_build_path (mdirname, file_name, &iter))) {
1631 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1633 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1634 "DllImport error loading library '%s': '%s'.",
1635 full_name, error_msg);
1638 found_name = g_strdup (full_name);
1654 char *file_or_base = is_absolute ? base_name : file_name;
1655 while ((full_name = mono_dl_build_path (dir_name, file_or_base, &iter))) {
1656 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1658 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1659 "DllImport error loading library '%s': '%s'.",
1660 full_name, error_msg);
1663 found_name = g_strdup (full_name);
1672 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1674 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1675 "DllImport error loading library '%s': '%s'.",
1676 file_name, error_msg);
1678 found_name = g_strdup (file_name);
1693 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1694 "DllImport unable to load library '%s'.",
1699 *exc_class = "DllNotFoundException";
1700 *exc_arg = new_scope;
1706 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1707 "DllImport loaded library '%s'.", found_name);
1708 mono_image_lock (image);
1709 if (!g_hash_table_lookup (image->pinvoke_scopes, new_scope)) {
1710 g_hash_table_insert (image->pinvoke_scopes, g_strdup (new_scope), module);
1711 g_hash_table_insert (image->pinvoke_scope_filenames, g_strdup (new_scope), g_strdup (found_name));
1713 mono_image_unlock (image);
1716 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1717 "DllImport searching in: '%s' ('%s').", new_scope, found_name);
1718 g_free (found_name);
1721 if (import && import [0] == '#' && isdigit (import [1])) {
1725 id = strtol (import + 1, &end, 10);
1726 if (id > 0 && *end == '\0')
1730 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1731 "Searching for '%s'.", import);
1733 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1734 error_msg = mono_dl_symbol (module, import, &piinfo->addr);
1736 char *mangled_name = NULL, *mangled_name2 = NULL;
1739 int mangle_param_count;
1745 * Search using a variety of mangled names
1747 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1748 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1749 gboolean need_param_count = FALSE;
1751 if (mangle_stdcall > 0)
1752 need_param_count = TRUE;
1754 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1759 mangled_name = (char*)import;
1760 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1761 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1762 /* Try the mangled name first */
1763 if (mangle_charset == 0)
1764 mangled_name = g_strconcat (import, "W", NULL);
1766 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1768 if (mangle_charset == 0)
1769 mangled_name = g_strconcat (import, "W", NULL);
1771 /* Try the mangled name last */
1772 if (mangle_charset == 1)
1773 mangled_name = g_strconcat (import, "A", NULL);
1776 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1778 /* Try the mangled name last */
1779 if (mangle_charset == 1)
1780 mangled_name = g_strconcat (import, "A", NULL);
1785 if (mangle_param_count == 0)
1786 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1788 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1789 param_count = mangle_param_count;
1791 /* Try the stdcall mangled name */
1793 * gcc under windows creates mangled names without the underscore, but MS.NET
1794 * doesn't support it, so we doesn't support it either.
1796 if (mangle_stdcall == 1)
1797 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1799 mangled_name2 = mangled_name;
1801 mangled_name2 = mangled_name;
1804 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1805 "Probing '%s'.", mangled_name2);
1807 error_msg = mono_dl_symbol (module, mangled_name2, &piinfo->addr);
1810 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1811 "Found as '%s'.", mangled_name2);
1813 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1814 "Could not find '%s' due to '%s'.", mangled_name2, error_msg);
1819 if (mangled_name != mangled_name2)
1820 g_free (mangled_name2);
1821 if (mangled_name != import)
1822 g_free (mangled_name);
1828 if (!piinfo->addr) {
1831 *exc_class = "EntryPointNotFoundException";
1836 return piinfo->addr;
1840 * LOCKING: assumes the loader lock to be taken.
1843 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1844 MonoGenericContext *context, gboolean *used_context, MonoError *error)
1847 int table = mono_metadata_token_table (token);
1848 int idx = mono_metadata_token_index (token);
1849 MonoTableInfo *tables = image->tables;
1850 MonoGenericContainer *generic_container = NULL, *container = NULL;
1851 const char *sig = NULL;
1852 guint32 cols [MONO_TYPEDEF_SIZE];
1854 mono_error_init (error);
1856 if (image_is_dynamic (image)) {
1857 MonoClass *handle_class;
1859 result = (MonoMethod *)mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context);
1860 mono_loader_assert_no_error ();
1862 // This checks the memberref type as well
1863 if (result && handle_class != mono_defaults.methodhandle_class) {
1864 mono_error_set_bad_image (error, image, "Bad method token 0x%08x on dynamic image", token);
1870 if (table != MONO_TABLE_METHOD) {
1871 if (table == MONO_TABLE_METHODSPEC) {
1872 if (used_context) *used_context = TRUE;
1873 return method_from_methodspec (image, context, idx, error);
1875 if (table != MONO_TABLE_MEMBERREF) {
1876 mono_error_set_bad_image (error, image, "Bad method token 0x%08x.", token);
1879 return method_from_memberref (image, idx, context, used_context, error);
1882 if (used_context) *used_context = FALSE;
1884 if (idx > image->tables [MONO_TABLE_METHOD].rows) {
1885 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (out of bounds).", token);
1890 guint32 type = mono_metadata_typedef_from_method (image, token);
1892 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (could not find corresponding typedef).", token);
1895 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
1900 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1902 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1903 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1904 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethodPInvoke));
1906 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethod));
1907 methods_size += sizeof (MonoMethod);
1910 mono_stats.method_count ++;
1913 result->klass = klass;
1914 result->flags = cols [2];
1915 result->iflags = cols [1];
1916 result->token = token;
1917 result->name = mono_metadata_string_heap (image, cols [3]);
1919 if (!sig) /* already taken from the methodref */
1920 sig = mono_metadata_blob_heap (image, cols [4]);
1921 /* size = */ mono_metadata_decode_blob_size (sig, &sig);
1923 container = klass->generic_container;
1926 * load_generic_params does a binary search so only call it if the method
1930 generic_container = mono_metadata_load_generic_params (image, token, container);
1931 mono_loader_assert_no_error (); /* FIXME don't swallow this error. */
1933 if (generic_container) {
1934 result->is_generic = TRUE;
1935 generic_container->owner.method = result;
1936 generic_container->is_anonymous = FALSE; // Method is now known, container is no longer anonymous
1937 /*FIXME put this before the image alloc*/
1938 if (!mono_metadata_load_generic_param_constraints_checked (image, token, generic_container, error))
1941 container = generic_container;
1944 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1945 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1946 result->string_ctor = 1;
1947 } else if (cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1948 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1951 /* IJW is P/Invoke with a predefined function pointer. */
1952 if (image->is_module_handle && (cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
1953 piinfo->addr = mono_image_rva_map (image, cols [0]);
1954 g_assert (piinfo->addr);
1957 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1958 /* Native methods can have no map. */
1959 if (piinfo->implmap_idx)
1960 piinfo->piflags = mono_metadata_decode_row_col (&tables [MONO_TABLE_IMPLMAP], piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1963 if (generic_container)
1964 mono_method_set_generic_container (result, generic_container);
1966 mono_loader_assert_no_error ();
1971 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1973 return mono_get_method_full (image, token, klass, NULL);
1977 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1978 MonoGenericContext *context)
1981 MonoMethod *result = mono_get_method_checked (image, token, klass, context, &error);
1982 mono_error_cleanup (&error);
1987 mono_get_method_checked (MonoImage *image, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error)
1989 MonoMethod *result = NULL;
1990 gboolean used_context = FALSE;
1992 /* We do everything inside the lock to prevent creation races */
1994 mono_error_init (error);
1996 mono_image_lock (image);
1998 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD) {
1999 if (!image->method_cache)
2000 image->method_cache = g_hash_table_new (NULL, NULL);
2001 result = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
2002 } else if (!image_is_dynamic (image)) {
2003 if (!image->methodref_cache)
2004 image->methodref_cache = g_hash_table_new (NULL, NULL);
2005 result = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
2007 mono_image_unlock (image);
2013 result = mono_get_method_from_token (image, token, klass, context, &used_context, error);
2017 mono_image_lock (image);
2018 if (!used_context && !result->is_inflated) {
2019 MonoMethod *result2 = NULL;
2021 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
2022 result2 = (MonoMethod *)g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
2023 else if (!image_is_dynamic (image))
2024 result2 = (MonoMethod *)g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
2027 mono_image_unlock (image);
2031 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
2032 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)), result);
2033 else if (!image_is_dynamic (image))
2034 g_hash_table_insert (image->methodref_cache, GINT_TO_POINTER (token), result);
2037 mono_image_unlock (image);
2043 get_method_constrained (MonoImage *image, MonoMethod *method, MonoClass *constrained_class, MonoGenericContext *context, MonoError *error)
2046 MonoClass *ic = NULL;
2047 MonoGenericContext *method_context = NULL;
2048 MonoMethodSignature *sig, *original_sig;
2050 mono_error_init (error);
2052 mono_class_init (constrained_class);
2053 original_sig = sig = mono_method_signature_checked (method, error);
2058 if (method->is_inflated && sig->generic_param_count) {
2059 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2060 sig = mono_method_signature_checked (imethod->declaring, error); /*We assume that if the inflated method signature is valid, the declaring method is too*/
2063 method_context = mono_method_get_context (method);
2067 * We must inflate the signature with the class instantiation to work on
2068 * cases where a class inherit from a generic type and the override replaces
2069 * any type argument which a concrete type. See #325283.
2071 if (method_context->class_inst) {
2072 MonoGenericContext ctx;
2073 ctx.method_inst = NULL;
2074 ctx.class_inst = method_context->class_inst;
2075 /*Fixme, property propagate this error*/
2076 sig = inflate_generic_signature_checked (method->klass->image, sig, &ctx, error);
2082 if ((constrained_class != method->klass) && (MONO_CLASS_IS_INTERFACE (method->klass)))
2085 result = find_method (constrained_class, ic, method->name, sig, constrained_class, error);
2086 if (sig != original_sig)
2087 mono_metadata_free_inflated_signature (sig);
2092 if (method_context) {
2093 result = mono_class_inflate_generic_method_checked (result, method_context, error);
2102 mono_get_method_constrained_with_method (MonoImage *image, MonoMethod *method, MonoClass *constrained_class,
2103 MonoGenericContext *context, MonoError *error)
2107 return get_method_constrained (image, method, constrained_class, context, error);
2111 * mono_get_method_constrained:
2113 * This is used when JITing the `constrained.' opcode.
2115 * This returns two values: the contrained method, which has been inflated
2116 * as the function return value; And the original CIL-stream method as
2117 * declared in cil_method. The later is used for verification.
2120 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
2121 MonoGenericContext *context, MonoMethod **cil_method)
2124 MonoMethod *result = mono_get_method_constrained_checked (image, token, constrained_class, context, cil_method, &error);
2125 mono_error_cleanup (&error);
2130 mono_get_method_constrained_checked (MonoImage *image, guint32 token, MonoClass *constrained_class, MonoGenericContext *context, MonoMethod **cil_method, MonoError *error)
2132 mono_error_init (error);
2134 *cil_method = mono_get_method_from_token (image, token, NULL, context, NULL, error);
2138 return get_method_constrained (image, *cil_method, constrained_class, context, error);
2142 mono_free_method (MonoMethod *method)
2144 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2145 mono_profiler_method_free (method);
2147 /* FIXME: This hack will go away when the profiler will support freeing methods */
2148 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
2151 if (method->signature) {
2153 * FIXME: This causes crashes because the types inside signatures and
2154 * locals are shared.
2156 /* mono_metadata_free_method_signature (method->signature); */
2157 /* g_free (method->signature); */
2160 if (method_is_dynamic (method)) {
2161 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
2164 mono_marshal_free_dynamic_wrappers (method);
2166 mono_image_property_remove (method->klass->image, method);
2168 g_free ((char*)method->name);
2170 g_free ((char*)mw->header->code);
2171 for (i = 0; i < mw->header->num_locals; ++i)
2172 g_free (mw->header->locals [i]);
2173 g_free (mw->header->clauses);
2174 g_free (mw->header);
2176 g_free (mw->method_data);
2177 g_free (method->signature);
2183 mono_method_get_param_names (MonoMethod *method, const char **names)
2187 MonoTableInfo *methodt;
2188 MonoTableInfo *paramt;
2189 MonoMethodSignature *signature;
2192 if (method->is_inflated)
2193 method = ((MonoMethodInflated *) method)->declaring;
2195 signature = mono_method_signature (method);
2196 /*FIXME this check is somewhat redundant since the caller usally will have to get the signature to figure out the
2197 number of arguments and allocate a properly sized array. */
2198 if (signature == NULL)
2201 if (!signature->param_count)
2204 for (i = 0; i < signature->param_count; ++i)
2207 klass = method->klass;
2211 mono_class_init (klass);
2213 if (image_is_dynamic (klass->image)) {
2214 MonoReflectionMethodAux *method_aux =
2215 (MonoReflectionMethodAux *)g_hash_table_lookup (
2216 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2217 if (method_aux && method_aux->param_names) {
2218 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
2219 if (method_aux->param_names [i + 1])
2220 names [i] = method_aux->param_names [i + 1];
2225 if (method->wrapper_type) {
2226 char **pnames = NULL;
2228 mono_image_lock (klass->image);
2229 if (klass->image->wrapper_param_names)
2230 pnames = (char **)g_hash_table_lookup (klass->image->wrapper_param_names, method);
2231 mono_image_unlock (klass->image);
2234 for (i = 0; i < signature->param_count; ++i)
2235 names [i] = pnames [i];
2240 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2241 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2242 idx = mono_method_get_index (method);
2244 guint32 cols [MONO_PARAM_SIZE];
2247 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2249 if (idx < methodt->rows)
2250 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2252 lastp = paramt->rows + 1;
2253 for (i = param_index; i < lastp; ++i) {
2254 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2255 if (cols [MONO_PARAM_SEQUENCE] && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) /* skip return param spec and bounds check*/
2256 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
2262 mono_method_get_param_token (MonoMethod *method, int index)
2264 MonoClass *klass = method->klass;
2265 MonoTableInfo *methodt;
2268 mono_class_init (klass);
2270 if (image_is_dynamic (klass->image))
2271 g_assert_not_reached ();
2273 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2274 idx = mono_method_get_index (method);
2276 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2280 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
2282 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
2289 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
2292 MonoClass *klass = method->klass;
2293 MonoTableInfo *methodt;
2294 MonoTableInfo *paramt;
2295 MonoMethodSignature *signature;
2298 signature = mono_method_signature (method);
2299 g_assert (signature); /*FIXME there is no way to signal error from this function*/
2301 for (i = 0; i < signature->param_count + 1; ++i)
2304 if (image_is_dynamic (method->klass->image)) {
2305 MonoReflectionMethodAux *method_aux =
2306 (MonoReflectionMethodAux *)g_hash_table_lookup (
2307 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2308 if (method_aux && method_aux->param_marshall) {
2309 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2310 for (i = 0; i < signature->param_count + 1; ++i)
2311 if (dyn_specs [i]) {
2312 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
2313 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
2314 mspecs [i]->data.custom_data.custom_name = g_strdup (dyn_specs [i]->data.custom_data.custom_name);
2315 mspecs [i]->data.custom_data.cookie = g_strdup (dyn_specs [i]->data.custom_data.cookie);
2321 mono_class_init (klass);
2323 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2324 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2325 idx = mono_method_get_index (method);
2327 guint32 cols [MONO_PARAM_SIZE];
2328 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2330 if (idx < methodt->rows)
2331 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2333 lastp = paramt->rows + 1;
2335 for (i = param_index; i < lastp; ++i) {
2336 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2338 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) {
2340 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
2342 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
2351 mono_method_has_marshal_info (MonoMethod *method)
2354 MonoClass *klass = method->klass;
2355 MonoTableInfo *methodt;
2356 MonoTableInfo *paramt;
2359 if (image_is_dynamic (method->klass->image)) {
2360 MonoReflectionMethodAux *method_aux =
2361 (MonoReflectionMethodAux *)g_hash_table_lookup (
2362 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2363 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2365 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
2372 mono_class_init (klass);
2374 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2375 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2376 idx = mono_method_get_index (method);
2378 guint32 cols [MONO_PARAM_SIZE];
2379 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2381 if (idx + 1 < methodt->rows)
2382 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2384 lastp = paramt->rows + 1;
2386 for (i = param_index; i < lastp; ++i) {
2387 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2389 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
2398 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
2401 g_assert (method != NULL);
2402 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
2404 if (method->is_inflated)
2405 method = ((MonoMethodInflated *) method)->declaring;
2406 data = (void **)((MonoMethodWrapper *)method)->method_data;
2407 g_assert (data != NULL);
2408 g_assert (id <= GPOINTER_TO_UINT (*data));
2415 } StackWalkUserData;
2418 stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2420 StackWalkUserData *d = (StackWalkUserData *)data;
2422 switch (frame->type) {
2423 case FRAME_TYPE_DEBUGGER_INVOKE:
2424 case FRAME_TYPE_MANAGED_TO_NATIVE:
2425 case FRAME_TYPE_TRAMPOLINE:
2427 case FRAME_TYPE_MANAGED:
2428 g_assert (frame->ji);
2429 return d->func (frame->actual_method, frame->native_offset, frame->il_offset, frame->managed, d->user_data);
2432 g_assert_not_reached ();
2438 mono_stack_walk (MonoStackWalk func, gpointer user_data)
2440 StackWalkUserData ud = { func, user_data };
2441 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_LOOKUP_ALL, &ud);
2445 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
2447 StackWalkUserData ud = { func, user_data };
2448 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_DEFAULT, &ud);
2452 MonoStackWalkAsyncSafe func;
2454 } AsyncStackWalkUserData;
2458 async_stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2460 AsyncStackWalkUserData *d = (AsyncStackWalkUserData *)data;
2462 switch (frame->type) {
2463 case FRAME_TYPE_DEBUGGER_INVOKE:
2464 case FRAME_TYPE_MANAGED_TO_NATIVE:
2465 case FRAME_TYPE_TRAMPOLINE:
2467 case FRAME_TYPE_MANAGED:
2470 if (frame->ji->async) {
2471 return d->func (NULL, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2473 return d->func (frame->actual_method, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2477 g_assert_not_reached ();
2484 * mono_stack_walk_async_safe:
2486 * Async safe version callable from signal handlers.
2489 mono_stack_walk_async_safe (MonoStackWalkAsyncSafe func, void *initial_sig_context, void *user_data)
2492 AsyncStackWalkUserData ud = { func, user_data };
2494 mono_sigctx_to_monoctx (initial_sig_context, &ctx);
2495 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (async_stack_walk_adapter, NULL, MONO_UNWIND_SIGNAL_SAFE, &ud);
2499 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
2501 MonoMethod **dest = (MonoMethod **)data;
2503 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
2509 mono_method_get_last_managed (void)
2511 MonoMethod *m = NULL;
2512 mono_stack_walk_no_il (last_managed, &m);
2516 static gboolean loader_lock_track_ownership = FALSE;
2521 * See docs/thread-safety.txt for the locking strategy.
2524 mono_loader_lock (void)
2526 mono_locks_coop_acquire (&loader_mutex, LoaderLock);
2527 if (G_UNLIKELY (loader_lock_track_ownership)) {
2528 mono_native_tls_set_value (loader_lock_nest_id, GUINT_TO_POINTER (GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) + 1));
2533 mono_loader_unlock (void)
2535 mono_locks_coop_release (&loader_mutex, LoaderLock);
2536 if (G_UNLIKELY (loader_lock_track_ownership)) {
2537 mono_native_tls_set_value (loader_lock_nest_id, GUINT_TO_POINTER (GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) - 1));
2542 * mono_loader_lock_track_ownership:
2544 * Set whenever the runtime should track ownership of the loader lock. If set to TRUE,
2545 * the mono_loader_lock_is_owned_by_self () can be called to query whenever the current
2546 * thread owns the loader lock.
2549 mono_loader_lock_track_ownership (gboolean track)
2551 loader_lock_track_ownership = track;
2555 * mono_loader_lock_is_owned_by_self:
2557 * Return whenever the current thread owns the loader lock.
2558 * This is useful to avoid blocking operations while holding the loader lock.
2561 mono_loader_lock_is_owned_by_self (void)
2563 g_assert (loader_lock_track_ownership);
2565 return GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) > 0;
2569 * mono_loader_lock_if_inited:
2571 * Acquire the loader lock if it has been initialized, no-op otherwise. This can
2572 * be used in runtime initialization code which can be executed before mono_loader_init ().
2575 mono_loader_lock_if_inited (void)
2577 if (loader_lock_inited)
2578 mono_loader_lock ();
2582 mono_loader_unlock_if_inited (void)
2584 if (loader_lock_inited)
2585 mono_loader_unlock ();
2589 * mono_method_signature:
2591 * Return the signature of the method M. On failure, returns NULL, and ERR is set.
2593 MonoMethodSignature*
2594 mono_method_signature_checked (MonoMethod *m, MonoError *error)
2599 gboolean can_cache_signature;
2600 MonoGenericContainer *container;
2601 MonoMethodSignature *signature = NULL, *sig2;
2604 /* We need memory barriers below because of the double-checked locking pattern */
2606 mono_error_init (error);
2609 return m->signature;
2611 img = m->klass->image;
2613 if (m->is_inflated) {
2614 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
2615 /* the lock is recursive */
2616 signature = mono_method_signature (imethod->declaring);
2617 signature = inflate_generic_signature_checked (imethod->declaring->klass->image, signature, mono_method_get_context (m), error);
2618 if (!mono_error_ok (error))
2621 inflated_signatures_size += mono_metadata_signature_size (signature);
2623 mono_image_lock (img);
2625 mono_memory_barrier ();
2627 m->signature = signature;
2629 mono_image_unlock (img);
2631 return m->signature;
2634 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
2635 idx = mono_metadata_token_index (m->token);
2637 sig = mono_metadata_blob_heap (img, sig_offset = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
2639 g_assert (!m->klass->generic_class);
2640 container = mono_method_get_generic_container (m);
2642 container = m->klass->generic_container;
2644 /* Generic signatures depend on the container so they cannot be cached */
2645 /* icall/pinvoke signatures cannot be cached cause we modify them below */
2646 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
2648 /* If the method has parameter attributes, that can modify the signature */
2649 if (mono_metadata_method_has_param_attrs (img, idx))
2650 can_cache_signature = FALSE;
2652 if (can_cache_signature) {
2653 mono_image_lock (img);
2654 signature = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2655 mono_image_unlock (img);
2659 const char *sig_body;
2660 /*TODO we should cache the failure result somewhere*/
2661 if (!mono_verifier_verify_method_signature (img, sig_offset, error))
2664 /* size = */ mono_metadata_decode_blob_size (sig, &sig_body);
2666 signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL, error);
2670 if (can_cache_signature) {
2671 mono_image_lock (img);
2672 sig2 = (MonoMethodSignature *)g_hash_table_lookup (img->method_signatures, sig);
2674 g_hash_table_insert (img->method_signatures, (gpointer)sig, signature);
2675 mono_image_unlock (img);
2678 signatures_size += mono_metadata_signature_size (signature);
2681 /* Verify metadata consistency */
2682 if (signature->generic_param_count) {
2683 if (!container || !container->is_method) {
2684 mono_error_set_method_load (error, m->klass, m->name, "Signature claims method has generic parameters, but generic_params table says it doesn't for method 0x%08x from image %s", idx, img->name);
2687 if (container->type_argc != signature->generic_param_count) {
2688 mono_error_set_method_load (error, m->klass, m->name, "Inconsistent generic parameter count. Signature says %d, generic_params table says %d for method 0x%08x from image %s", signature->generic_param_count, container->type_argc, idx, img->name);
2691 } else if (container && container->is_method && container->type_argc) {
2692 mono_error_set_method_load (error, m->klass, m->name, "generic_params table claims method has generic parameters, but signature says it doesn't for method 0x%08x from image %s", idx, img->name);
2695 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
2696 signature->pinvoke = 1;
2697 else if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2698 MonoCallConvention conv = (MonoCallConvention)0;
2699 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
2700 signature->pinvoke = 1;
2702 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
2703 case 0: /* no call conv, so using default */
2704 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
2705 conv = MONO_CALL_DEFAULT;
2707 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
2710 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
2711 conv = MONO_CALL_STDCALL;
2713 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
2714 conv = MONO_CALL_THISCALL;
2716 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
2717 conv = MONO_CALL_FASTCALL;
2719 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
2720 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
2722 mono_error_set_method_load (error, m->klass, m->name, "unsupported calling convention : 0x%04x for method 0x%08x from image %s", piinfo->piflags, idx, img->name);
2725 signature->call_convention = conv;
2728 mono_image_lock (img);
2730 mono_memory_barrier ();
2732 m->signature = signature;
2734 mono_image_unlock (img);
2736 return m->signature;
2740 * mono_method_signature:
2742 * Return the signature of the method M. On failure, returns NULL.
2744 MonoMethodSignature*
2745 mono_method_signature (MonoMethod *m)
2748 MonoMethodSignature *sig;
2750 sig = mono_method_signature_checked (m, &error);
2752 char *type_name = mono_type_get_full_name (m->klass);
2753 g_warning ("Could not load signature of %s:%s due to: %s", type_name, m->name, mono_error_get_message (&error));
2755 mono_error_cleanup (&error);
2762 mono_method_get_name (MonoMethod *method)
2764 return method->name;
2768 mono_method_get_class (MonoMethod *method)
2770 return method->klass;
2774 mono_method_get_token (MonoMethod *method)
2776 return method->token;
2780 mono_method_get_header (MonoMethod *method)
2786 MonoMethodHeader *header;
2787 MonoGenericContainer *container;
2789 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))
2792 img = method->klass->image;
2794 if (method->is_inflated) {
2795 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2796 MonoMethodHeader *header, *iheader;
2798 header = mono_method_get_header (imethod->declaring);
2802 iheader = inflate_generic_header (header, mono_method_get_context (method));
2803 mono_metadata_free_mh (header);
2805 mono_image_lock (img);
2807 if (imethod->header) {
2808 mono_metadata_free_mh (iheader);
2809 mono_image_unlock (img);
2810 return imethod->header;
2813 mono_memory_barrier ();
2814 imethod->header = iheader;
2816 mono_image_unlock (img);
2818 return imethod->header;
2821 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
2822 MonoMethodWrapper *mw = (MonoMethodWrapper *)method;
2823 g_assert (mw->header);
2828 * We don't need locks here: the new header is allocated from malloc memory
2829 * and is not stored anywhere in the runtime, the user needs to free it.
2831 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
2832 idx = mono_metadata_token_index (method->token);
2833 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
2835 if (!mono_verifier_verify_method_header (img, rva, NULL))
2838 loc = mono_image_rva_map (img, rva);
2843 * When parsing the types of local variables, we must pass any container available
2844 * to ensure that both VAR and MVAR will get the right owner.
2846 container = mono_method_get_generic_container (method);
2848 container = method->klass->generic_container;
2849 header = mono_metadata_parse_mh_full (img, container, (const char *)loc);
2855 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
2858 *iflags = method->iflags;
2859 return method->flags;
2863 * Find the method index in the metadata methodDef table.
2866 mono_method_get_index (MonoMethod *method)
2868 MonoClass *klass = method->klass;
2872 /* constructed array methods are not in the MethodDef table */
2876 return mono_metadata_token_index (method->token);
2878 mono_class_setup_methods (klass);
2879 if (klass->exception_type)
2881 for (i = 0; i < klass->method.count; ++i) {
2882 if (method == klass->methods [i]) {
2883 if (klass->image->uncompressed_metadata)
2884 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
2886 return klass->method.first + i + 1;