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;
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 = 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, token);
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, 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, 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 = 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 = 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
539 mono_field_from_token (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context)
542 MonoClassField *res = mono_field_from_token_checked (image, token, retklass, context, &error);
543 mono_loader_assert_no_error ();
544 if (!mono_error_ok (&error)) {
545 mono_loader_set_error_from_mono_error (&error);
546 mono_error_cleanup (&error);
552 mono_field_from_token_checked (MonoImage *image, guint32 token, MonoClass **retklass, MonoGenericContext *context, MonoError *error)
556 MonoClassField *field;
558 mono_error_init (error);
560 if (image_is_dynamic (image)) {
561 MonoClassField *result;
562 MonoClass *handle_class;
565 result = mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context);
566 // This checks the memberref type as well
567 if (!result || handle_class != mono_defaults.fieldhandle_class) {
568 mono_error_set_bad_image (error, image, "Bad field token 0x%08x", token);
571 *retklass = result->parent;
575 if ((field = mono_conc_hashtable_lookup (image->field_cache, GUINT_TO_POINTER (token)))) {
576 *retklass = field->parent;
580 if (mono_metadata_token_table (token) == MONO_TABLE_MEMBERREF) {
581 field = field_from_memberref (image, token, retklass, context, error);
582 mono_loader_assert_no_error ();
584 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
586 mono_error_set_bad_image (error, image, "Invalid field token 0x%08x", token);
589 k = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
596 field = mono_class_get_field (k, token);
598 if (mono_loader_get_last_error ())
599 mono_error_set_from_loader_error (error);
601 mono_error_set_bad_image (error, image, "Could not resolve field token 0x%08x", token);
605 if (field && field->parent && !field->parent->generic_class && !field->parent->generic_container) {
606 mono_image_lock (image);
607 mono_conc_hashtable_insert (image->field_cache, GUINT_TO_POINTER (token), field);
608 mono_image_unlock (image);
611 mono_loader_assert_no_error ();
616 mono_metadata_signature_vararg_match (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
620 if (sig1->hasthis != sig2->hasthis ||
621 sig1->sentinelpos != sig2->sentinelpos)
624 for (i = 0; i < sig1->sentinelpos; i++) {
625 MonoType *p1 = sig1->params[i];
626 MonoType *p2 = sig2->params[i];
628 /*if (p1->attrs != p2->attrs)
631 if (!mono_metadata_type_equal (p1, p2))
635 if (!mono_metadata_type_equal (sig1->ret, sig2->ret))
641 find_method_in_class (MonoClass *klass, const char *name, const char *qname, const char *fqname,
642 MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
646 /* Search directly in the metadata to avoid calling setup_methods () */
647 mono_error_init (error);
649 /* FIXME: !from_class->generic_class condition causes test failures. */
650 if (klass->type_token && !image_is_dynamic (klass->image) && !klass->methods && !klass->rank && klass == from_class && !from_class->generic_class) {
651 for (i = 0; i < klass->method.count; ++i) {
652 guint32 cols [MONO_METHOD_SIZE];
655 MonoMethodSignature *other_sig;
657 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
659 m_name = mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]);
661 if (!((fqname && !strcmp (m_name, fqname)) ||
662 (qname && !strcmp (m_name, qname)) ||
663 (name && !strcmp (m_name, name))))
666 method = mono_get_method_checked (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass, NULL, error);
667 if (!mono_error_ok (error)) //bail out if we hit a loader error
670 other_sig = mono_method_signature_checked (method, error);
671 if (!mono_error_ok (error)) //bail out if we hit a loader error
673 if (other_sig && (sig->call_convention != MONO_CALL_VARARG) && mono_metadata_signature_equal (sig, other_sig))
679 mono_class_setup_methods (klass); /* FIXME don't swallow the error here. */
681 We can't fail lookup of methods otherwise the runtime will fail with MissingMethodException instead of TypeLoadException.
682 See mono/tests/generic-type-load-exception.2.il
683 FIXME we should better report this error to the caller
685 if (!klass->methods || klass->exception_type) {
686 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
690 for (i = 0; i < klass->method.count; ++i) {
691 MonoMethod *m = klass->methods [i];
692 MonoMethodSignature *msig;
694 /* We must cope with failing to load some of the types. */
698 if (!((fqname && !strcmp (m->name, fqname)) ||
699 (qname && !strcmp (m->name, qname)) ||
700 (name && !strcmp (m->name, name))))
702 msig = mono_method_signature_checked (m, error);
703 if (!mono_error_ok (error)) //bail out if we hit a loader error
709 if (sig->call_convention == MONO_CALL_VARARG) {
710 if (mono_metadata_signature_vararg_match (sig, msig))
713 if (mono_metadata_signature_equal (sig, msig))
718 if (i < klass->method.count)
719 return mono_class_get_method_by_index (from_class, i);
724 find_method (MonoClass *in_class, MonoClass *ic, const char* name, MonoMethodSignature *sig, MonoClass *from_class, MonoError *error)
727 char *qname, *fqname, *class_name;
728 gboolean is_interface;
729 MonoMethod *result = NULL;
730 MonoClass *initial_class = in_class;
732 mono_error_init (error);
733 is_interface = MONO_CLASS_IS_INTERFACE (in_class);
736 class_name = mono_type_get_name_full (&ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
738 qname = g_strconcat (class_name, ".", name, NULL);
739 if (ic->name_space && ic->name_space [0])
740 fqname = g_strconcat (ic->name_space, ".", class_name, ".", name, NULL);
744 class_name = qname = fqname = NULL;
747 g_assert (from_class);
748 result = find_method_in_class (in_class, name, qname, fqname, sig, from_class, error);
749 if (result || !mono_error_ok (error))
752 if (name [0] == '.' && (!strcmp (name, ".ctor") || !strcmp (name, ".cctor")))
756 * This happens when we fail to lazily load the interfaces of one of the types.
757 * On such case we can't just bail out since user code depends on us trying harder.
759 if (from_class->interface_offsets_count != in_class->interface_offsets_count) {
760 in_class = in_class->parent;
761 from_class = from_class->parent;
765 for (i = 0; i < in_class->interface_offsets_count; i++) {
766 MonoClass *in_ic = in_class->interfaces_packed [i];
767 MonoClass *from_ic = from_class->interfaces_packed [i];
768 char *ic_qname, *ic_fqname, *ic_class_name;
770 ic_class_name = mono_type_get_name_full (&in_ic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
771 ic_qname = g_strconcat (ic_class_name, ".", name, NULL);
772 if (in_ic->name_space && in_ic->name_space [0])
773 ic_fqname = g_strconcat (in_ic->name_space, ".", ic_class_name, ".", name, NULL);
777 result = find_method_in_class (in_ic, ic ? name : NULL, ic_qname, ic_fqname, sig, from_ic, error);
778 g_free (ic_class_name);
781 if (result || !mono_error_ok (error))
785 in_class = in_class->parent;
786 from_class = from_class->parent;
788 g_assert (!in_class == !from_class);
791 result = find_method_in_class (mono_defaults.object_class, name, qname, fqname, sig, mono_defaults.object_class, error);
793 //we did not find the method
794 if (!result && mono_error_ok (error)) {
795 char *desc = mono_signature_get_desc (sig, FALSE);
796 mono_error_set_method_load (error, initial_class, name, "Could not find method with signature %s", desc);
807 static MonoMethodSignature*
808 inflate_generic_signature_checked (MonoImage *image, MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
810 MonoMethodSignature *res;
814 mono_error_init (error);
818 res = g_malloc0 (MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)sig->param_count) * sizeof (MonoType*));
819 res->param_count = sig->param_count;
820 res->sentinelpos = -1;
821 res->ret = mono_class_inflate_generic_type_checked (sig->ret, context, error);
822 if (!mono_error_ok (error))
824 is_open = mono_class_is_open_constructed_type (res->ret);
825 for (i = 0; i < sig->param_count; ++i) {
826 res->params [i] = mono_class_inflate_generic_type_checked (sig->params [i], context, error);
827 if (!mono_error_ok (error))
831 is_open = mono_class_is_open_constructed_type (res->params [i]);
833 res->hasthis = sig->hasthis;
834 res->explicit_this = sig->explicit_this;
835 res->call_convention = sig->call_convention;
836 res->pinvoke = sig->pinvoke;
837 res->generic_param_count = sig->generic_param_count;
838 res->sentinelpos = sig->sentinelpos;
839 res->has_type_parameters = is_open;
840 res->is_inflated = 1;
845 mono_metadata_free_type (res->ret);
846 for (i = 0; i < sig->param_count; ++i) {
848 mono_metadata_free_type (res->params [i]);
855 * mono_inflate_generic_signature:
857 * Inflate SIG with CONTEXT, and return a canonical copy. On error, set ERROR, and return NULL.
860 mono_inflate_generic_signature (MonoMethodSignature *sig, MonoGenericContext *context, MonoError *error)
862 MonoMethodSignature *res, *cached;
864 res = inflate_generic_signature_checked (NULL, sig, context, error);
865 if (!mono_error_ok (error))
867 cached = mono_metadata_get_inflated_signature (res, context);
869 mono_metadata_free_inflated_signature (res);
873 static MonoMethodHeader*
874 inflate_generic_header (MonoMethodHeader *header, MonoGenericContext *context)
876 MonoMethodHeader *res;
878 res = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + sizeof (gpointer) * header->num_locals);
879 res->code = header->code;
880 res->code_size = header->code_size;
881 res->max_stack = header->max_stack;
882 res->num_clauses = header->num_clauses;
883 res->init_locals = header->init_locals;
884 res->num_locals = header->num_locals;
885 res->clauses = header->clauses;
886 for (i = 0; i < header->num_locals; ++i)
887 res->locals [i] = mono_class_inflate_generic_type (header->locals [i], context);
888 if (res->num_clauses) {
889 res->clauses = g_memdup (header->clauses, sizeof (MonoExceptionClause) * res->num_clauses);
890 for (i = 0; i < header->num_clauses; ++i) {
891 MonoExceptionClause *clause = &res->clauses [i];
892 if (clause->flags != MONO_EXCEPTION_CLAUSE_NONE)
894 clause->data.catch_class = mono_class_inflate_generic_class (clause->data.catch_class, context);
901 * token is the method_ref/def/spec token used in a call IL instruction.
904 mono_method_get_signature_full (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context)
907 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, context, &error);
909 mono_loader_assert_no_error ();
912 g_assert (!mono_error_ok (&error));
913 mono_loader_set_error_from_mono_error (&error);
914 mono_error_cleanup (&error); /* FIXME Don't swallow the error */
920 mono_method_get_signature_checked (MonoMethod *method, MonoImage *image, guint32 token, MonoGenericContext *context, MonoError *error)
922 int table = mono_metadata_token_table (token);
923 int idx = mono_metadata_token_index (token);
925 guint32 cols [MONO_MEMBERREF_SIZE];
926 MonoMethodSignature *sig;
929 mono_error_init (error);
931 /* !table is for wrappers: we should really assign their own token to them */
932 if (!table || table == MONO_TABLE_METHOD)
933 return mono_method_signature_checked (method, error);
935 if (table == MONO_TABLE_METHODSPEC) {
936 /* the verifier (do_invoke_method) will turn the NULL into a verifier error */
937 if ((method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) || !method->is_inflated)
940 return mono_method_signature_checked (method, error);
943 if (method->klass->generic_class)
944 return mono_method_signature_checked (method, error);
946 if (image_is_dynamic (image)) {
947 sig = mono_reflection_lookup_signature (image, method, token, error);
951 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], idx-1, cols, MONO_MEMBERREF_SIZE);
952 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
954 sig = find_cached_memberref_sig (image, sig_idx);
956 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
957 guint32 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
958 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
960 //FIXME include the verification error
961 mono_error_set_bad_image (error, image, "Bad method signature class token 0x%08x field name %s token 0x%08x", class, fname, token);
965 ptr = mono_metadata_blob_heap (image, sig_idx);
966 mono_metadata_decode_blob_size (ptr, &ptr);
968 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
972 sig = cache_memberref_sig (image, sig_idx, sig);
974 /* FIXME: we probably should verify signature compat in the dynamic case too*/
975 if (!mono_verifier_is_sig_compatible (image, method, sig)) {
976 guint32 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
977 const char *fname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
979 mono_error_set_bad_image (error, image, "Incompatible method signature class token 0x%08x field name %s token 0x%08x", class, fname, token);
985 MonoMethodSignature *cached;
987 /* This signature is not owned by a MonoMethod, so need to cache */
988 sig = inflate_generic_signature_checked (image, sig, context, error);
989 if (!mono_error_ok (error))
992 cached = mono_metadata_get_inflated_signature (sig, context);
994 mono_metadata_free_inflated_signature (sig);
996 inflated_signatures_size += mono_metadata_signature_size (cached);
1000 g_assert (mono_error_ok (error));
1004 MonoMethodSignature*
1005 mono_method_get_signature (MonoMethod *method, MonoImage *image, guint32 token)
1008 MonoMethodSignature *res = mono_method_get_signature_checked (method, image, token, NULL, &error);
1010 mono_loader_assert_no_error ();
1013 g_assert (!mono_error_ok (&error));
1014 mono_loader_set_error_from_mono_error (&error);
1015 mono_error_cleanup (&error); /* FIXME Don't swallow the error */
1020 /* this is only for the typespec array methods */
1022 mono_method_search_in_array_class (MonoClass *klass, const char *name, MonoMethodSignature *sig)
1026 mono_class_setup_methods (klass);
1027 g_assert (!klass->exception_type); /*FIXME this should not fail, right?*/
1028 for (i = 0; i < klass->method.count; ++i) {
1029 MonoMethod *method = klass->methods [i];
1030 if (strcmp (method->name, name) == 0 && sig->param_count == method->signature->param_count)
1037 method_from_memberref (MonoImage *image, guint32 idx, MonoGenericContext *typespec_context,
1038 gboolean *used_context, MonoError *error)
1040 MonoClass *klass = NULL;
1041 MonoMethod *method = NULL;
1042 MonoTableInfo *tables = image->tables;
1044 guint32 nindex, class, sig_idx;
1046 MonoMethodSignature *sig;
1049 mono_error_init (error);
1051 mono_metadata_decode_row (&tables [MONO_TABLE_MEMBERREF], idx-1, cols, 3);
1052 nindex = cols [MONO_MEMBERREF_CLASS] >> MONO_MEMBERREF_PARENT_BITS;
1053 class = cols [MONO_MEMBERREF_CLASS] & MONO_MEMBERREF_PARENT_MASK;
1054 /*g_print ("methodref: 0x%x 0x%x %s\n", class, nindex,
1055 mono_metadata_string_heap (m, cols [MONO_MEMBERREF_NAME]));*/
1057 mname = mono_metadata_string_heap (image, cols [MONO_MEMBERREF_NAME]);
1060 * Whether we actually used the `typespec_context' or not.
1061 * This is used to tell our caller whether or not it's safe to insert the returned
1062 * method into a cache.
1065 *used_context = class == MONO_MEMBERREF_PARENT_TYPESPEC;
1068 case MONO_MEMBERREF_PARENT_TYPEREF:
1069 klass = mono_class_from_typeref_checked (image, MONO_TOKEN_TYPE_REF | nindex, error);
1073 case MONO_MEMBERREF_PARENT_TYPESPEC:
1075 * Parse the TYPESPEC in the parent's context.
1077 klass = mono_class_get_and_inflate_typespec_checked (image, MONO_TOKEN_TYPE_SPEC | nindex, typespec_context, error);
1081 case MONO_MEMBERREF_PARENT_TYPEDEF:
1082 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | nindex, error);
1086 case MONO_MEMBERREF_PARENT_METHODDEF: {
1087 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, NULL, error);
1093 mono_error_set_bad_image (error, image, "Memberref parent unknown: class: %d, index %d", class, nindex);
1098 mono_class_init (klass);
1100 sig_idx = cols [MONO_MEMBERREF_SIGNATURE];
1102 if (!mono_verifier_verify_memberref_method_signature (image, sig_idx, NULL)) {
1103 mono_error_set_method_load (error, klass, mname, "Verifier rejected method signature");
1107 ptr = mono_metadata_blob_heap (image, sig_idx);
1108 mono_metadata_decode_blob_size (ptr, &ptr);
1110 sig = find_cached_memberref_sig (image, sig_idx);
1112 sig = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, error);
1116 sig = cache_memberref_sig (image, sig_idx, sig);
1120 case MONO_MEMBERREF_PARENT_TYPEREF:
1121 case MONO_MEMBERREF_PARENT_TYPEDEF:
1122 method = find_method (klass, NULL, mname, sig, klass, error);
1125 case MONO_MEMBERREF_PARENT_TYPESPEC: {
1128 type = &klass->byval_arg;
1130 if (type->type != MONO_TYPE_ARRAY && type->type != MONO_TYPE_SZARRAY) {
1131 MonoClass *in_class = klass->generic_class ? klass->generic_class->container_class : klass;
1132 method = find_method (in_class, NULL, mname, sig, klass, error);
1136 /* we're an array and we created these methods already in klass in mono_class_init () */
1137 method = mono_method_search_in_array_class (klass, mname, sig);
1141 mono_error_set_bad_image (error, image,"Memberref parent unknown: class: %d, index %d", class, nindex);
1145 if (!method && mono_error_ok (error)) {
1146 char *msig = mono_signature_get_desc (sig, FALSE);
1147 GString *s = g_string_new (mname);
1148 if (sig->generic_param_count)
1149 g_string_append_printf (s, "<[%d]>", sig->generic_param_count);
1150 g_string_append_printf (s, "(%s)", msig);
1152 msig = g_string_free (s, FALSE);
1154 if (mono_loader_get_last_error ()) /* FIXME find_method and mono_method_search_in_array_class can leak a loader error */
1155 mono_error_set_from_loader_error (error);
1157 mono_error_set_method_load (error, klass, mname, "Could not find method %s", msig);
1162 mono_loader_assert_no_error ();
1166 mono_loader_assert_no_error ();
1167 g_assert (!mono_error_ok (error));
1172 method_from_methodspec (MonoImage *image, MonoGenericContext *context, guint32 idx, MonoError *error)
1176 MonoTableInfo *tables = image->tables;
1177 MonoGenericContext new_context;
1178 MonoGenericInst *inst;
1180 guint32 cols [MONO_METHODSPEC_SIZE];
1181 guint32 token, nindex, param_count;
1183 mono_error_init (error);
1185 mono_metadata_decode_row (&tables [MONO_TABLE_METHODSPEC], idx - 1, cols, MONO_METHODSPEC_SIZE);
1186 token = cols [MONO_METHODSPEC_METHOD];
1187 nindex = token >> MONO_METHODDEFORREF_BITS;
1189 if (!mono_verifier_verify_methodspec_signature (image, cols [MONO_METHODSPEC_SIGNATURE], NULL)) {
1190 mono_error_set_bad_image (error, image, "Bad method signals signature 0x%08x", idx);
1194 ptr = mono_metadata_blob_heap (image, cols [MONO_METHODSPEC_SIGNATURE]);
1196 mono_metadata_decode_value (ptr, &ptr);
1198 param_count = mono_metadata_decode_value (ptr, &ptr);
1200 inst = mono_metadata_parse_generic_inst (image, NULL, param_count, ptr, &ptr, error);
1204 if (context && inst->is_open) {
1205 inst = mono_metadata_inflate_generic_inst (inst, context, error);
1206 if (!mono_error_ok (error))
1210 if ((token & MONO_METHODDEFORREF_MASK) == MONO_METHODDEFORREF_METHODDEF) {
1211 method = mono_get_method_checked (image, MONO_TOKEN_METHOD_DEF | nindex, NULL, context, error);
1215 method = method_from_memberref (image, nindex, context, NULL, error);
1221 klass = method->klass;
1223 if (klass->generic_class) {
1224 g_assert (method->is_inflated);
1225 method = ((MonoMethodInflated *) method)->declaring;
1228 new_context.class_inst = klass->generic_class ? klass->generic_class->context.class_inst : NULL;
1229 new_context.method_inst = inst;
1231 method = mono_class_inflate_generic_method_full_checked (method, klass, &new_context, error);
1232 mono_loader_assert_no_error ();
1236 struct _MonoDllMap {
1244 static MonoDllMap *global_dll_map;
1247 mono_dllmap_lookup_list (MonoDllMap *dll_map, const char *dll, const char* func, const char **rdll, const char **rfunc) {
1255 global_loader_data_lock ();
1258 * we use the first entry we find that matches, since entries from
1259 * the config file are prepended to the list and we document that the
1260 * later entries win.
1262 for (; dll_map; dll_map = dll_map->next) {
1263 if (dll_map->dll [0] == 'i' && dll_map->dll [1] == ':') {
1264 if (g_ascii_strcasecmp (dll_map->dll + 2, dll))
1266 } else if (strcmp (dll_map->dll, dll)) {
1269 if (!found && dll_map->target) {
1270 *rdll = dll_map->target;
1272 /* we don't quit here, because we could find a full
1273 * entry that matches also function and that has priority.
1276 if (dll_map->func && strcmp (dll_map->func, func) == 0) {
1277 *rfunc = dll_map->target_func;
1282 global_loader_data_unlock ();
1287 mono_dllmap_lookup (MonoImage *assembly, const char *dll, const char* func, const char **rdll, const char **rfunc)
1290 if (assembly && assembly->dll_map) {
1291 res = mono_dllmap_lookup_list (assembly->dll_map, dll, func, rdll, rfunc);
1295 return mono_dllmap_lookup_list (global_dll_map, dll, func, rdll, rfunc);
1299 * mono_dllmap_insert:
1300 * @assembly: if NULL, this is a global mapping, otherwise the remapping of the dynamic library will only apply to the specified assembly
1301 * @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
1302 * @func: if not null, the mapping will only applied to the named function (the value of EntryPoint)
1303 * @tdll: The name of the library to map the specified @dll if it matches.
1304 * @tfunc: if func is not NULL, the name of the function that replaces the invocation
1306 * LOCKING: Acquires the loader lock.
1308 * This function is used to programatically add DllImport remapping in either
1309 * a specific assembly, or as a global remapping. This is done by remapping
1310 * references in a DllImport attribute from the @dll library name into the @tdll
1311 * name. If the @dll name contains the prefix "i:", the comparison of the
1312 * library name is done without case sensitivity.
1314 * If you pass @func, this is the name of the EntryPoint in a DllImport if specified
1315 * or the name of the function as determined by DllImport. If you pass @func, you
1316 * must also pass @tfunc which is the name of the target function to invoke on a match.
1319 * mono_dllmap_insert (NULL, "i:libdemo.dll", NULL, relocated_demo_path, NULL);
1321 * The above will remap DllImport statments for "libdemo.dll" and "LIBDEMO.DLL" to
1322 * the contents of relocated_demo_path for all assemblies in the Mono process.
1324 * NOTE: This can be called before the runtime is initialized, for example from
1325 * mono_config_parse ().
1328 mono_dllmap_insert (MonoImage *assembly, const char *dll, const char *func, const char *tdll, const char *tfunc)
1332 mono_loader_init ();
1335 entry = g_malloc0 (sizeof (MonoDllMap));
1336 entry->dll = dll? g_strdup (dll): NULL;
1337 entry->target = tdll? g_strdup (tdll): NULL;
1338 entry->func = func? g_strdup (func): NULL;
1339 entry->target_func = tfunc? g_strdup (tfunc): NULL;
1341 global_loader_data_lock ();
1342 entry->next = global_dll_map;
1343 global_dll_map = entry;
1344 global_loader_data_unlock ();
1346 entry = mono_image_alloc0 (assembly, sizeof (MonoDllMap));
1347 entry->dll = dll? mono_image_strdup (assembly, dll): NULL;
1348 entry->target = tdll? mono_image_strdup (assembly, tdll): NULL;
1349 entry->func = func? mono_image_strdup (assembly, func): NULL;
1350 entry->target_func = tfunc? mono_image_strdup (assembly, tfunc): NULL;
1352 mono_image_lock (assembly);
1353 entry->next = assembly->dll_map;
1354 assembly->dll_map = entry;
1355 mono_image_unlock (assembly);
1360 free_dllmap (MonoDllMap *map)
1363 MonoDllMap *next = map->next;
1366 g_free (map->target);
1368 g_free (map->target_func);
1375 dllmap_cleanup (void)
1377 free_dllmap (global_dll_map);
1378 global_dll_map = NULL;
1381 static GHashTable *global_module_map;
1384 cached_module_load (const char *name, int flags, char **err)
1390 global_loader_data_lock ();
1391 if (!global_module_map)
1392 global_module_map = g_hash_table_new (g_str_hash, g_str_equal);
1393 res = g_hash_table_lookup (global_module_map, name);
1395 global_loader_data_unlock ();
1398 res = mono_dl_open (name, flags, err);
1400 g_hash_table_insert (global_module_map, g_strdup (name), res);
1401 global_loader_data_unlock ();
1405 static MonoDl *internal_module;
1408 is_absolute_path (const char *path)
1410 #ifdef PLATFORM_MACOSX
1411 if (!strncmp (path, "@executable_path/", 17) || !strncmp (path, "@loader_path/", 13) ||
1412 !strncmp (path, "@rpath/", 7))
1415 return g_path_is_absolute (path);
1419 mono_lookup_pinvoke_call (MonoMethod *method, const char **exc_class, const char **exc_arg)
1421 MonoImage *image = method->klass->image;
1422 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)method;
1423 MonoTableInfo *tables = image->tables;
1424 MonoTableInfo *im = &tables [MONO_TABLE_IMPLMAP];
1425 MonoTableInfo *mr = &tables [MONO_TABLE_MODULEREF];
1426 guint32 im_cols [MONO_IMPLMAP_SIZE];
1427 guint32 scope_token;
1428 const char *import = NULL;
1429 const char *orig_scope;
1430 const char *new_scope;
1432 char *full_name, *file_name, *found_name = NULL;
1434 MonoDl *module = NULL;
1435 gboolean cached = FALSE;
1437 g_assert (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
1445 return piinfo->addr;
1447 if (image_is_dynamic (method->klass->image)) {
1448 MonoReflectionMethodAux *method_aux =
1449 g_hash_table_lookup (
1450 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
1454 import = method_aux->dllentry;
1455 orig_scope = method_aux->dll;
1458 if (!piinfo->implmap_idx || piinfo->implmap_idx > im->rows)
1461 mono_metadata_decode_row (im, piinfo->implmap_idx - 1, im_cols, MONO_IMPLMAP_SIZE);
1463 if (!im_cols [MONO_IMPLMAP_SCOPE] || im_cols [MONO_IMPLMAP_SCOPE] > mr->rows)
1466 piinfo->piflags = im_cols [MONO_IMPLMAP_FLAGS];
1467 import = mono_metadata_string_heap (image, im_cols [MONO_IMPLMAP_NAME]);
1468 scope_token = mono_metadata_decode_row_col (mr, im_cols [MONO_IMPLMAP_SCOPE] - 1, MONO_MODULEREF_NAME);
1469 orig_scope = mono_metadata_string_heap (image, scope_token);
1472 mono_dllmap_lookup (image, orig_scope, import, &new_scope, &import);
1475 mono_image_lock (image);
1476 if (!image->pinvoke_scopes) {
1477 image->pinvoke_scopes = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
1478 image->pinvoke_scope_filenames = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
1480 module = g_hash_table_lookup (image->pinvoke_scopes, new_scope);
1481 found_name = g_hash_table_lookup (image->pinvoke_scope_filenames, new_scope);
1482 mono_image_unlock (image);
1486 found_name = g_strdup (found_name);
1490 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1491 "DllImport attempting to load: '%s'.", new_scope);
1493 /* we allow a special name to dlopen from the running process namespace */
1494 if (strcmp (new_scope, "__Internal") == 0){
1495 if (internal_module == NULL)
1496 internal_module = mono_dl_open (NULL, MONO_DL_LAZY, &error_msg);
1497 module = internal_module;
1502 * Try loading the module using a variety of names
1504 for (i = 0; i < 5; ++i) {
1505 char *base_name = NULL, *dir_name = NULL;
1506 gboolean is_absolute = is_absolute_path (new_scope);
1510 /* Try the original name */
1511 file_name = g_strdup (new_scope);
1514 /* Try trimming the .dll extension */
1515 if (strstr (new_scope, ".dll") == (new_scope + strlen (new_scope) - 4)) {
1516 file_name = g_strdup (new_scope);
1517 file_name [strlen (new_scope) - 4] = '\0';
1524 dir_name = g_path_get_dirname (new_scope);
1525 base_name = g_path_get_basename (new_scope);
1526 if (strstr (base_name, "lib") != base_name) {
1527 char *tmp = g_strdup_printf ("lib%s", base_name);
1530 file_name = g_strdup_printf ("%s%s%s", dir_name, G_DIR_SEPARATOR_S, base_name);
1533 } else if (strstr (new_scope, "lib") != new_scope) {
1534 file_name = g_strdup_printf ("lib%s", new_scope);
1539 if (!is_absolute && mono_dl_get_system_dir ()) {
1540 dir_name = (char*)mono_dl_get_system_dir ();
1541 file_name = g_path_get_basename (new_scope);
1547 #ifndef TARGET_WIN32
1548 if (!g_ascii_strcasecmp ("user32.dll", new_scope) ||
1549 !g_ascii_strcasecmp ("kernel32.dll", new_scope) ||
1550 !g_ascii_strcasecmp ("user32", new_scope) ||
1551 !g_ascii_strcasecmp ("kernel", new_scope)) {
1552 file_name = g_strdup ("libMonoSupportW.so");
1556 #ifndef TARGET_WIN32
1563 dir_name = g_path_get_dirname (file_name);
1565 base_name = g_path_get_basename (file_name);
1568 if (!module && is_absolute) {
1569 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1571 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1572 "DllImport error loading library '%s': '%s'.",
1573 file_name, error_msg);
1576 found_name = g_strdup (file_name);
1580 if (!module && !is_absolute) {
1584 for (j = 0; j < 3; ++j) {
1589 mdirname = g_path_get_dirname (image->name);
1591 case 1: /* @executable_path@/../lib */
1595 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1597 char *base, *newbase;
1600 resolvedname = mono_path_resolve_symlinks (buf);
1602 base = g_path_get_dirname (resolvedname);
1603 newbase = g_path_get_dirname(base);
1604 mdirname = g_strdup_printf ("%s/lib", newbase);
1606 g_free (resolvedname);
1613 case 2: /* @executable_path@/../Libraries */
1617 binl = mono_dl_get_executable_path (buf, sizeof (buf));
1619 char *base, *newbase;
1622 resolvedname = mono_path_resolve_symlinks (buf);
1624 base = g_path_get_dirname (resolvedname);
1625 newbase = g_path_get_dirname(base);
1626 mdirname = g_strdup_printf ("%s/Libraries", newbase);
1628 g_free (resolvedname);
1640 while ((full_name = mono_dl_build_path (mdirname, file_name, &iter))) {
1641 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1643 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1644 "DllImport error loading library '%s': '%s'.",
1645 full_name, error_msg);
1648 found_name = g_strdup (full_name);
1664 char *file_or_base = is_absolute ? base_name : file_name;
1665 while ((full_name = mono_dl_build_path (dir_name, file_or_base, &iter))) {
1666 module = cached_module_load (full_name, MONO_DL_LAZY, &error_msg);
1668 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1669 "DllImport error loading library '%s': '%s'.",
1670 full_name, error_msg);
1673 found_name = g_strdup (full_name);
1682 module = cached_module_load (file_name, MONO_DL_LAZY, &error_msg);
1684 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1685 "DllImport error loading library '%s': '%s'.",
1686 file_name, error_msg);
1688 found_name = g_strdup (file_name);
1703 mono_trace (G_LOG_LEVEL_WARNING, MONO_TRACE_DLLIMPORT,
1704 "DllImport unable to load library '%s'.",
1709 *exc_class = "DllNotFoundException";
1710 *exc_arg = new_scope;
1716 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1717 "DllImport loaded library '%s'.", found_name);
1718 mono_image_lock (image);
1719 if (!g_hash_table_lookup (image->pinvoke_scopes, new_scope)) {
1720 g_hash_table_insert (image->pinvoke_scopes, g_strdup (new_scope), module);
1721 g_hash_table_insert (image->pinvoke_scope_filenames, g_strdup (new_scope), g_strdup (found_name));
1723 mono_image_unlock (image);
1726 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1727 "DllImport searching in: '%s' ('%s').", new_scope, found_name);
1728 g_free (found_name);
1731 if (import && import [0] == '#' && isdigit (import [1])) {
1735 id = strtol (import + 1, &end, 10);
1736 if (id > 0 && *end == '\0')
1740 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1741 "Searching for '%s'.", import);
1743 if (piinfo->piflags & PINVOKE_ATTRIBUTE_NO_MANGLE) {
1744 error_msg = mono_dl_symbol (module, import, &piinfo->addr);
1746 char *mangled_name = NULL, *mangled_name2 = NULL;
1749 int mangle_param_count;
1755 * Search using a variety of mangled names
1757 for (mangle_charset = 0; mangle_charset <= 1; mangle_charset ++) {
1758 for (mangle_stdcall = 0; mangle_stdcall <= 1; mangle_stdcall ++) {
1759 gboolean need_param_count = FALSE;
1761 if (mangle_stdcall > 0)
1762 need_param_count = TRUE;
1764 for (mangle_param_count = 0; mangle_param_count <= (need_param_count ? 256 : 0); mangle_param_count += 4) {
1769 mangled_name = (char*)import;
1770 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
1771 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
1772 /* Try the mangled name first */
1773 if (mangle_charset == 0)
1774 mangled_name = g_strconcat (import, "W", NULL);
1776 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
1778 if (mangle_charset == 0)
1779 mangled_name = g_strconcat (import, "W", NULL);
1781 /* Try the mangled name last */
1782 if (mangle_charset == 1)
1783 mangled_name = g_strconcat (import, "A", NULL);
1786 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
1788 /* Try the mangled name last */
1789 if (mangle_charset == 1)
1790 mangled_name = g_strconcat (import, "A", NULL);
1795 if (mangle_param_count == 0)
1796 param_count = mono_method_signature (method)->param_count * sizeof (gpointer);
1798 /* Try brute force, since it would be very hard to compute the stack usage correctly */
1799 param_count = mangle_param_count;
1801 /* Try the stdcall mangled name */
1803 * gcc under windows creates mangled names without the underscore, but MS.NET
1804 * doesn't support it, so we doesn't support it either.
1806 if (mangle_stdcall == 1)
1807 mangled_name2 = g_strdup_printf ("_%s@%d", mangled_name, param_count);
1809 mangled_name2 = mangled_name;
1811 mangled_name2 = mangled_name;
1814 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1815 "Probing '%s'.", mangled_name2);
1817 error_msg = mono_dl_symbol (module, mangled_name2, &piinfo->addr);
1820 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1821 "Found as '%s'.", mangled_name2);
1823 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_DLLIMPORT,
1824 "Could not find '%s' due to '%s'.", mangled_name2, error_msg);
1829 if (mangled_name != mangled_name2)
1830 g_free (mangled_name2);
1831 if (mangled_name != import)
1832 g_free (mangled_name);
1838 if (!piinfo->addr) {
1841 *exc_class = "EntryPointNotFoundException";
1846 return piinfo->addr;
1850 * LOCKING: assumes the loader lock to be taken.
1853 mono_get_method_from_token (MonoImage *image, guint32 token, MonoClass *klass,
1854 MonoGenericContext *context, gboolean *used_context, MonoError *error)
1857 int table = mono_metadata_token_table (token);
1858 int idx = mono_metadata_token_index (token);
1859 MonoTableInfo *tables = image->tables;
1860 MonoGenericContainer *generic_container = NULL, *container = NULL;
1861 const char *sig = NULL;
1862 guint32 cols [MONO_TYPEDEF_SIZE];
1864 mono_error_init (error);
1866 if (image_is_dynamic (image)) {
1867 MonoClass *handle_class;
1869 result = mono_lookup_dynamic_token_class (image, token, TRUE, &handle_class, context);
1870 mono_loader_assert_no_error ();
1872 // This checks the memberref type as well
1873 if (result && handle_class != mono_defaults.methodhandle_class) {
1874 mono_error_set_bad_image (error, image, "Bad method token 0x%08x on dynamic image", token);
1880 if (table != MONO_TABLE_METHOD) {
1881 if (table == MONO_TABLE_METHODSPEC) {
1882 if (used_context) *used_context = TRUE;
1883 return method_from_methodspec (image, context, idx, error);
1885 if (table != MONO_TABLE_MEMBERREF) {
1886 mono_error_set_bad_image (error, image, "Bad method token 0x%08x.", token);
1889 return method_from_memberref (image, idx, context, used_context, error);
1892 if (used_context) *used_context = FALSE;
1894 if (idx > image->tables [MONO_TABLE_METHOD].rows) {
1895 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (out of bounds).", token);
1900 guint32 type = mono_metadata_typedef_from_method (image, token);
1902 mono_error_set_bad_image (error, image, "Bad method token 0x%08x (could not find corresponding typedef).", token);
1905 klass = mono_class_get_checked (image, MONO_TOKEN_TYPE_DEF | type, error);
1910 mono_metadata_decode_row (&image->tables [MONO_TABLE_METHOD], idx - 1, cols, 6);
1912 if ((cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1913 (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)) {
1914 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethodPInvoke));
1916 result = (MonoMethod *)mono_image_alloc0 (image, sizeof (MonoMethod));
1917 methods_size += sizeof (MonoMethod);
1920 mono_stats.method_count ++;
1923 result->klass = klass;
1924 result->flags = cols [2];
1925 result->iflags = cols [1];
1926 result->token = token;
1927 result->name = mono_metadata_string_heap (image, cols [3]);
1929 if (!sig) /* already taken from the methodref */
1930 sig = mono_metadata_blob_heap (image, cols [4]);
1931 /* size = */ mono_metadata_decode_blob_size (sig, &sig);
1933 container = klass->generic_container;
1936 * load_generic_params does a binary search so only call it if the method
1940 generic_container = mono_metadata_load_generic_params (image, token, container);
1941 mono_loader_assert_no_error (); /* FIXME don't swallow this error. */
1943 if (generic_container) {
1944 result->is_generic = TRUE;
1945 generic_container->owner.method = result;
1946 /*FIXME put this before the image alloc*/
1947 if (!mono_metadata_load_generic_param_constraints_checked (image, token, generic_container, error))
1950 container = generic_container;
1953 if (cols [1] & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
1954 if (result->klass == mono_defaults.string_class && !strcmp (result->name, ".ctor"))
1955 result->string_ctor = 1;
1956 } else if (cols [2] & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
1957 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)result;
1960 /* IJW is P/Invoke with a predefined function pointer. */
1961 if (image->is_module_handle && (cols [1] & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
1962 piinfo->addr = mono_image_rva_map (image, cols [0]);
1963 g_assert (piinfo->addr);
1966 piinfo->implmap_idx = mono_metadata_implmap_from_method (image, idx - 1);
1967 /* Native methods can have no map. */
1968 if (piinfo->implmap_idx)
1969 piinfo->piflags = mono_metadata_decode_row_col (&tables [MONO_TABLE_IMPLMAP], piinfo->implmap_idx - 1, MONO_IMPLMAP_FLAGS);
1972 if (generic_container)
1973 mono_method_set_generic_container (result, generic_container);
1975 mono_loader_assert_no_error ();
1980 mono_get_method (MonoImage *image, guint32 token, MonoClass *klass)
1982 return mono_get_method_full (image, token, klass, NULL);
1986 mono_get_method_full (MonoImage *image, guint32 token, MonoClass *klass,
1987 MonoGenericContext *context)
1990 MonoMethod *result = mono_get_method_checked (image, token, klass, context, &error);
1991 mono_loader_assert_no_error ();
1992 if (!mono_error_ok (&error)) {
1993 mono_loader_set_error_from_mono_error (&error);
1994 mono_error_cleanup (&error);
2000 mono_get_method_checked (MonoImage *image, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error)
2002 MonoMethod *result = NULL;
2003 gboolean used_context = FALSE;
2005 /* We do everything inside the lock to prevent creation races */
2007 mono_error_init (error);
2009 mono_image_lock (image);
2011 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD) {
2012 if (!image->method_cache)
2013 image->method_cache = g_hash_table_new (NULL, NULL);
2014 result = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
2015 } else if (!image_is_dynamic (image)) {
2016 if (!image->methodref_cache)
2017 image->methodref_cache = g_hash_table_new (NULL, NULL);
2018 result = g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
2020 mono_image_unlock (image);
2026 result = mono_get_method_from_token (image, token, klass, context, &used_context, error);
2030 mono_image_lock (image);
2031 if (!used_context && !result->is_inflated) {
2032 MonoMethod *result2 = NULL;
2034 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
2035 result2 = g_hash_table_lookup (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)));
2036 else if (!image_is_dynamic (image))
2037 result2 = g_hash_table_lookup (image->methodref_cache, GINT_TO_POINTER (token));
2040 mono_image_unlock (image);
2044 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
2045 g_hash_table_insert (image->method_cache, GINT_TO_POINTER (mono_metadata_token_index (token)), result);
2046 else if (!image_is_dynamic (image))
2047 g_hash_table_insert (image->methodref_cache, GINT_TO_POINTER (token), result);
2050 mono_image_unlock (image);
2056 get_method_constrained (MonoImage *image, MonoMethod *method, MonoClass *constrained_class, MonoGenericContext *context, MonoError *error)
2059 MonoClass *ic = NULL;
2060 MonoGenericContext *method_context = NULL;
2061 MonoMethodSignature *sig, *original_sig;
2063 mono_error_init (error);
2065 mono_class_init (constrained_class);
2066 original_sig = sig = mono_method_signature_checked (method, error);
2071 if (method->is_inflated && sig->generic_param_count) {
2072 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2073 sig = mono_method_signature_checked (imethod->declaring, error); /*We assume that if the inflated method signature is valid, the declaring method is too*/
2076 method_context = mono_method_get_context (method);
2080 * We must inflate the signature with the class instantiation to work on
2081 * cases where a class inherit from a generic type and the override replaces
2082 * any type argument which a concrete type. See #325283.
2084 if (method_context->class_inst) {
2085 MonoGenericContext ctx;
2086 ctx.method_inst = NULL;
2087 ctx.class_inst = method_context->class_inst;
2088 /*Fixme, property propagate this error*/
2089 sig = inflate_generic_signature_checked (method->klass->image, sig, &ctx, error);
2095 if ((constrained_class != method->klass) && (MONO_CLASS_IS_INTERFACE (method->klass)))
2098 result = find_method (constrained_class, ic, method->name, sig, constrained_class, error);
2099 if (sig != original_sig)
2100 mono_metadata_free_inflated_signature (sig);
2105 if (method_context) {
2106 result = mono_class_inflate_generic_method_checked (result, method_context, error);
2115 mono_get_method_constrained_with_method (MonoImage *image, MonoMethod *method, MonoClass *constrained_class,
2116 MonoGenericContext *context, MonoError *error)
2120 return get_method_constrained (image, method, constrained_class, context, error);
2124 * mono_get_method_constrained:
2126 * This is used when JITing the `constrained.' opcode.
2128 * This returns two values: the contrained method, which has been inflated
2129 * as the function return value; And the original CIL-stream method as
2130 * declared in cil_method. The later is used for verification.
2133 mono_get_method_constrained (MonoImage *image, guint32 token, MonoClass *constrained_class,
2134 MonoGenericContext *context, MonoMethod **cil_method)
2137 MonoMethod *result = mono_get_method_constrained_checked (image, token, constrained_class, context, cil_method, &error);
2139 mono_loader_assert_no_error ();
2140 if (!mono_error_ok (&error)) {
2141 mono_loader_set_error_from_mono_error (&error);
2142 mono_error_cleanup (&error);
2148 mono_get_method_constrained_checked (MonoImage *image, guint32 token, MonoClass *constrained_class, MonoGenericContext *context, MonoMethod **cil_method, MonoError *error)
2150 mono_error_init (error);
2152 *cil_method = mono_get_method_from_token (image, token, NULL, context, NULL, error);
2156 return get_method_constrained (image, *cil_method, constrained_class, context, error);
2160 mono_free_method (MonoMethod *method)
2162 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2163 mono_profiler_method_free (method);
2165 /* FIXME: This hack will go away when the profiler will support freeing methods */
2166 if (mono_profiler_get_events () != MONO_PROFILE_NONE)
2169 if (method->signature) {
2171 * FIXME: This causes crashes because the types inside signatures and
2172 * locals are shared.
2174 /* mono_metadata_free_method_signature (method->signature); */
2175 /* g_free (method->signature); */
2178 if (method_is_dynamic (method)) {
2179 MonoMethodWrapper *mw = (MonoMethodWrapper*)method;
2182 mono_marshal_free_dynamic_wrappers (method);
2184 mono_image_property_remove (method->klass->image, method);
2186 g_free ((char*)method->name);
2188 g_free ((char*)mw->header->code);
2189 for (i = 0; i < mw->header->num_locals; ++i)
2190 g_free (mw->header->locals [i]);
2191 g_free (mw->header->clauses);
2192 g_free (mw->header);
2194 g_free (mw->method_data);
2195 g_free (method->signature);
2201 mono_method_get_param_names (MonoMethod *method, const char **names)
2205 MonoTableInfo *methodt;
2206 MonoTableInfo *paramt;
2207 MonoMethodSignature *signature;
2210 if (method->is_inflated)
2211 method = ((MonoMethodInflated *) method)->declaring;
2213 signature = mono_method_signature (method);
2214 /*FIXME this check is somewhat redundant since the caller usally will have to get the signature to figure out the
2215 number of arguments and allocate a properly sized array. */
2216 if (signature == NULL)
2219 if (!signature->param_count)
2222 for (i = 0; i < signature->param_count; ++i)
2225 klass = method->klass;
2229 mono_class_init (klass);
2231 if (image_is_dynamic (klass->image)) {
2232 MonoReflectionMethodAux *method_aux =
2233 g_hash_table_lookup (
2234 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2235 if (method_aux && method_aux->param_names) {
2236 for (i = 0; i < mono_method_signature (method)->param_count; ++i)
2237 if (method_aux->param_names [i + 1])
2238 names [i] = method_aux->param_names [i + 1];
2243 if (method->wrapper_type) {
2244 char **pnames = NULL;
2246 mono_image_lock (klass->image);
2247 if (klass->image->wrapper_param_names)
2248 pnames = g_hash_table_lookup (klass->image->wrapper_param_names, method);
2249 mono_image_unlock (klass->image);
2252 for (i = 0; i < signature->param_count; ++i)
2253 names [i] = pnames [i];
2258 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2259 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2260 idx = mono_method_get_index (method);
2262 guint32 cols [MONO_PARAM_SIZE];
2265 param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2267 if (idx < methodt->rows)
2268 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2270 lastp = paramt->rows + 1;
2271 for (i = param_index; i < lastp; ++i) {
2272 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2273 if (cols [MONO_PARAM_SEQUENCE] && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) /* skip return param spec and bounds check*/
2274 names [cols [MONO_PARAM_SEQUENCE] - 1] = mono_metadata_string_heap (klass->image, cols [MONO_PARAM_NAME]);
2280 mono_method_get_param_token (MonoMethod *method, int index)
2282 MonoClass *klass = method->klass;
2283 MonoTableInfo *methodt;
2286 mono_class_init (klass);
2288 if (image_is_dynamic (klass->image))
2289 g_assert_not_reached ();
2291 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2292 idx = mono_method_get_index (method);
2294 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2298 return mono_metadata_make_token (MONO_TABLE_PARAM, 0);
2300 return mono_metadata_make_token (MONO_TABLE_PARAM, param_index + index);
2307 mono_method_get_marshal_info (MonoMethod *method, MonoMarshalSpec **mspecs)
2310 MonoClass *klass = method->klass;
2311 MonoTableInfo *methodt;
2312 MonoTableInfo *paramt;
2313 MonoMethodSignature *signature;
2316 signature = mono_method_signature (method);
2317 g_assert (signature); /*FIXME there is no way to signal error from this function*/
2319 for (i = 0; i < signature->param_count + 1; ++i)
2322 if (image_is_dynamic (method->klass->image)) {
2323 MonoReflectionMethodAux *method_aux =
2324 g_hash_table_lookup (
2325 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2326 if (method_aux && method_aux->param_marshall) {
2327 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2328 for (i = 0; i < signature->param_count + 1; ++i)
2329 if (dyn_specs [i]) {
2330 mspecs [i] = g_new0 (MonoMarshalSpec, 1);
2331 memcpy (mspecs [i], dyn_specs [i], sizeof (MonoMarshalSpec));
2332 mspecs [i]->data.custom_data.custom_name = g_strdup (dyn_specs [i]->data.custom_data.custom_name);
2333 mspecs [i]->data.custom_data.cookie = g_strdup (dyn_specs [i]->data.custom_data.cookie);
2339 mono_class_init (klass);
2341 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2342 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2343 idx = mono_method_get_index (method);
2345 guint32 cols [MONO_PARAM_SIZE];
2346 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2348 if (idx < methodt->rows)
2349 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2351 lastp = paramt->rows + 1;
2353 for (i = param_index; i < lastp; ++i) {
2354 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2356 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL && cols [MONO_PARAM_SEQUENCE] <= signature->param_count) {
2358 tp = mono_metadata_get_marshal_info (klass->image, i - 1, FALSE);
2360 mspecs [cols [MONO_PARAM_SEQUENCE]]= mono_metadata_parse_marshal_spec (klass->image, tp);
2369 mono_method_has_marshal_info (MonoMethod *method)
2372 MonoClass *klass = method->klass;
2373 MonoTableInfo *methodt;
2374 MonoTableInfo *paramt;
2377 if (image_is_dynamic (method->klass->image)) {
2378 MonoReflectionMethodAux *method_aux =
2379 g_hash_table_lookup (
2380 ((MonoDynamicImage*)method->klass->image)->method_aux_hash, method);
2381 MonoMarshalSpec **dyn_specs = method_aux->param_marshall;
2383 for (i = 0; i < mono_method_signature (method)->param_count + 1; ++i)
2390 mono_class_init (klass);
2392 methodt = &klass->image->tables [MONO_TABLE_METHOD];
2393 paramt = &klass->image->tables [MONO_TABLE_PARAM];
2394 idx = mono_method_get_index (method);
2396 guint32 cols [MONO_PARAM_SIZE];
2397 guint param_index = mono_metadata_decode_row_col (methodt, idx - 1, MONO_METHOD_PARAMLIST);
2399 if (idx + 1 < methodt->rows)
2400 lastp = mono_metadata_decode_row_col (methodt, idx, MONO_METHOD_PARAMLIST);
2402 lastp = paramt->rows + 1;
2404 for (i = param_index; i < lastp; ++i) {
2405 mono_metadata_decode_row (paramt, i -1, cols, MONO_PARAM_SIZE);
2407 if (cols [MONO_PARAM_FLAGS] & PARAM_ATTRIBUTE_HAS_FIELD_MARSHAL)
2416 mono_method_get_wrapper_data (MonoMethod *method, guint32 id)
2419 g_assert (method != NULL);
2420 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
2422 if (method->is_inflated)
2423 method = ((MonoMethodInflated *) method)->declaring;
2424 data = ((MonoMethodWrapper *)method)->method_data;
2425 g_assert (data != NULL);
2426 g_assert (id <= GPOINTER_TO_UINT (*data));
2433 } StackWalkUserData;
2436 stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2438 StackWalkUserData *d = data;
2440 switch (frame->type) {
2441 case FRAME_TYPE_DEBUGGER_INVOKE:
2442 case FRAME_TYPE_MANAGED_TO_NATIVE:
2443 case FRAME_TYPE_TRAMPOLINE:
2445 case FRAME_TYPE_MANAGED:
2446 g_assert (frame->ji);
2447 return d->func (frame->actual_method, frame->native_offset, frame->il_offset, frame->managed, d->user_data);
2450 g_assert_not_reached ();
2456 mono_stack_walk (MonoStackWalk func, gpointer user_data)
2458 StackWalkUserData ud = { func, user_data };
2459 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_LOOKUP_ALL, &ud);
2463 mono_stack_walk_no_il (MonoStackWalk func, gpointer user_data)
2465 StackWalkUserData ud = { func, user_data };
2466 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (stack_walk_adapter, NULL, MONO_UNWIND_DEFAULT, &ud);
2470 MonoStackWalkAsyncSafe func;
2472 } AsyncStackWalkUserData;
2476 async_stack_walk_adapter (MonoStackFrameInfo *frame, MonoContext *ctx, gpointer data)
2478 AsyncStackWalkUserData *d = data;
2480 switch (frame->type) {
2481 case FRAME_TYPE_DEBUGGER_INVOKE:
2482 case FRAME_TYPE_MANAGED_TO_NATIVE:
2483 case FRAME_TYPE_TRAMPOLINE:
2485 case FRAME_TYPE_MANAGED:
2488 if (frame->ji->async) {
2489 return d->func (NULL, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2491 return d->func (frame->actual_method, frame->domain, frame->ji->code_start, frame->native_offset, d->user_data);
2495 g_assert_not_reached ();
2502 * mono_stack_walk_async_safe:
2504 * Async safe version callable from signal handlers.
2507 mono_stack_walk_async_safe (MonoStackWalkAsyncSafe func, void *initial_sig_context, void *user_data)
2510 AsyncStackWalkUserData ud = { func, user_data };
2512 mono_sigctx_to_monoctx (initial_sig_context, &ctx);
2513 mono_get_eh_callbacks ()->mono_walk_stack_with_ctx (async_stack_walk_adapter, NULL, MONO_UNWIND_SIGNAL_SAFE, &ud);
2517 last_managed (MonoMethod *m, gint no, gint ilo, gboolean managed, gpointer data)
2519 MonoMethod **dest = data;
2521 /*g_print ("In %s::%s [%d] [%d]\n", m->klass->name, m->name, no, ilo);*/
2527 mono_method_get_last_managed (void)
2529 MonoMethod *m = NULL;
2530 mono_stack_walk_no_il (last_managed, &m);
2534 static gboolean loader_lock_track_ownership = FALSE;
2539 * See docs/thread-safety.txt for the locking strategy.
2542 mono_loader_lock (void)
2544 mono_locks_coop_acquire (&loader_mutex, LoaderLock);
2545 if (G_UNLIKELY (loader_lock_track_ownership)) {
2546 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));
2551 mono_loader_unlock (void)
2553 mono_locks_coop_release (&loader_mutex, LoaderLock);
2554 if (G_UNLIKELY (loader_lock_track_ownership)) {
2555 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));
2560 * mono_loader_lock_track_ownership:
2562 * Set whenever the runtime should track ownership of the loader lock. If set to TRUE,
2563 * the mono_loader_lock_is_owned_by_self () can be called to query whenever the current
2564 * thread owns the loader lock.
2567 mono_loader_lock_track_ownership (gboolean track)
2569 loader_lock_track_ownership = track;
2573 * mono_loader_lock_is_owned_by_self:
2575 * Return whenever the current thread owns the loader lock.
2576 * This is useful to avoid blocking operations while holding the loader lock.
2579 mono_loader_lock_is_owned_by_self (void)
2581 g_assert (loader_lock_track_ownership);
2583 return GPOINTER_TO_UINT (mono_native_tls_get_value (loader_lock_nest_id)) > 0;
2587 * mono_loader_lock_if_inited:
2589 * Acquire the loader lock if it has been initialized, no-op otherwise. This can
2590 * be used in runtime initialization code which can be executed before mono_loader_init ().
2593 mono_loader_lock_if_inited (void)
2595 if (loader_lock_inited)
2596 mono_loader_lock ();
2600 mono_loader_unlock_if_inited (void)
2602 if (loader_lock_inited)
2603 mono_loader_unlock ();
2607 * mono_method_signature:
2609 * Return the signature of the method M. On failure, returns NULL, and ERR is set.
2611 MonoMethodSignature*
2612 mono_method_signature_checked (MonoMethod *m, MonoError *error)
2617 gboolean can_cache_signature;
2618 MonoGenericContainer *container;
2619 MonoMethodSignature *signature = NULL, *sig2;
2622 /* We need memory barriers below because of the double-checked locking pattern */
2624 mono_error_init (error);
2627 return m->signature;
2629 img = m->klass->image;
2631 if (m->is_inflated) {
2632 MonoMethodInflated *imethod = (MonoMethodInflated *) m;
2633 /* the lock is recursive */
2634 signature = mono_method_signature (imethod->declaring);
2635 signature = inflate_generic_signature_checked (imethod->declaring->klass->image, signature, mono_method_get_context (m), error);
2636 if (!mono_error_ok (error))
2639 inflated_signatures_size += mono_metadata_signature_size (signature);
2641 mono_image_lock (img);
2643 mono_memory_barrier ();
2645 m->signature = signature;
2647 mono_image_unlock (img);
2649 return m->signature;
2652 g_assert (mono_metadata_token_table (m->token) == MONO_TABLE_METHOD);
2653 idx = mono_metadata_token_index (m->token);
2655 sig = mono_metadata_blob_heap (img, sig_offset = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_SIGNATURE));
2657 g_assert (!m->klass->generic_class);
2658 container = mono_method_get_generic_container (m);
2660 container = m->klass->generic_container;
2662 /* Generic signatures depend on the container so they cannot be cached */
2663 /* icall/pinvoke signatures cannot be cached cause we modify them below */
2664 can_cache_signature = !(m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && !(m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) && !container;
2666 /* If the method has parameter attributes, that can modify the signature */
2667 if (mono_metadata_method_has_param_attrs (img, idx))
2668 can_cache_signature = FALSE;
2670 if (can_cache_signature) {
2671 mono_image_lock (img);
2672 signature = g_hash_table_lookup (img->method_signatures, sig);
2673 mono_image_unlock (img);
2677 const char *sig_body;
2678 /*TODO we should cache the failure result somewhere*/
2679 if (!mono_verifier_verify_method_signature (img, sig_offset, error))
2682 /* size = */ mono_metadata_decode_blob_size (sig, &sig_body);
2684 signature = mono_metadata_parse_method_signature_full (img, container, idx, sig_body, NULL, error);
2688 if (can_cache_signature) {
2689 mono_image_lock (img);
2690 sig2 = g_hash_table_lookup (img->method_signatures, sig);
2692 g_hash_table_insert (img->method_signatures, (gpointer)sig, signature);
2693 mono_image_unlock (img);
2696 signatures_size += mono_metadata_signature_size (signature);
2699 /* Verify metadata consistency */
2700 if (signature->generic_param_count) {
2701 if (!container || !container->is_method) {
2702 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);
2705 if (container->type_argc != signature->generic_param_count) {
2706 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);
2709 } else if (container && container->is_method && container->type_argc) {
2710 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);
2713 if (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
2714 signature->pinvoke = 1;
2715 else if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
2716 MonoCallConvention conv = 0;
2717 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *)m;
2718 signature->pinvoke = 1;
2720 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CALL_CONV_MASK) {
2721 case 0: /* no call conv, so using default */
2722 case PINVOKE_ATTRIBUTE_CALL_CONV_WINAPI:
2723 conv = MONO_CALL_DEFAULT;
2725 case PINVOKE_ATTRIBUTE_CALL_CONV_CDECL:
2728 case PINVOKE_ATTRIBUTE_CALL_CONV_STDCALL:
2729 conv = MONO_CALL_STDCALL;
2731 case PINVOKE_ATTRIBUTE_CALL_CONV_THISCALL:
2732 conv = MONO_CALL_THISCALL;
2734 case PINVOKE_ATTRIBUTE_CALL_CONV_FASTCALL:
2735 conv = MONO_CALL_FASTCALL;
2737 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERIC:
2738 case PINVOKE_ATTRIBUTE_CALL_CONV_GENERICINST:
2740 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);
2743 signature->call_convention = conv;
2746 mono_image_lock (img);
2748 mono_memory_barrier ();
2750 m->signature = signature;
2752 mono_image_unlock (img);
2754 return m->signature;
2758 * mono_method_signature:
2760 * Return the signature of the method M. On failure, returns NULL.
2762 MonoMethodSignature*
2763 mono_method_signature (MonoMethod *m)
2766 MonoMethodSignature *sig;
2768 sig = mono_method_signature_checked (m, &error);
2770 char *type_name = mono_type_get_full_name (m->klass);
2771 g_warning ("Could not load signature of %s:%s due to: %s", type_name, m->name, mono_error_get_message (&error));
2773 mono_error_cleanup (&error);
2780 mono_method_get_name (MonoMethod *method)
2782 return method->name;
2786 mono_method_get_class (MonoMethod *method)
2788 return method->klass;
2792 mono_method_get_token (MonoMethod *method)
2794 return method->token;
2798 mono_method_get_header (MonoMethod *method)
2804 MonoMethodHeader *header;
2805 MonoGenericContainer *container;
2807 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))
2810 img = method->klass->image;
2812 if (method->is_inflated) {
2813 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
2814 MonoMethodHeader *header, *iheader;
2816 header = mono_method_get_header (imethod->declaring);
2820 iheader = inflate_generic_header (header, mono_method_get_context (method));
2821 mono_metadata_free_mh (header);
2823 mono_image_lock (img);
2825 if (imethod->header) {
2826 mono_metadata_free_mh (iheader);
2827 mono_image_unlock (img);
2828 return imethod->header;
2831 mono_memory_barrier ();
2832 imethod->header = iheader;
2834 mono_image_unlock (img);
2836 return imethod->header;
2839 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
2840 MonoMethodWrapper *mw = (MonoMethodWrapper *)method;
2841 g_assert (mw->header);
2846 * We don't need locks here: the new header is allocated from malloc memory
2847 * and is not stored anywhere in the runtime, the user needs to free it.
2849 g_assert (mono_metadata_token_table (method->token) == MONO_TABLE_METHOD);
2850 idx = mono_metadata_token_index (method->token);
2851 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
2853 if (!mono_verifier_verify_method_header (img, rva, NULL))
2856 loc = mono_image_rva_map (img, rva);
2861 * When parsing the types of local variables, we must pass any container available
2862 * to ensure that both VAR and MVAR will get the right owner.
2864 container = mono_method_get_generic_container (method);
2866 container = method->klass->generic_container;
2867 header = mono_metadata_parse_mh_full (img, container, loc);
2873 mono_method_get_flags (MonoMethod *method, guint32 *iflags)
2876 *iflags = method->iflags;
2877 return method->flags;
2881 * Find the method index in the metadata methodDef table.
2884 mono_method_get_index (MonoMethod *method)
2886 MonoClass *klass = method->klass;
2890 /* constructed array methods are not in the MethodDef table */
2894 return mono_metadata_token_index (method->token);
2896 mono_class_setup_methods (klass);
2897 if (klass->exception_type)
2899 for (i = 0; i < klass->method.count; ++i) {
2900 if (method == klass->methods [i]) {
2901 if (klass->image->uncompressed_metadata)
2902 return mono_metadata_translate_token_index (klass->image, MONO_TABLE_METHOD, klass->method.first + i + 1);
2904 return klass->method.first + i + 1;