2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
20 #include "metadata/marshal.h"
21 #include "metadata/method-builder.h"
22 #include "metadata/tabledefs.h"
23 #include "metadata/exception.h"
24 #include "metadata/appdomain.h"
25 #include "mono/metadata/debug-helpers.h"
26 #include "mono/metadata/threadpool.h"
27 #include "mono/metadata/threads.h"
28 #include "mono/metadata/monitor.h"
29 #include "mono/metadata/metadata-internals.h"
30 #include "mono/metadata/domain-internals.h"
31 #include "mono/metadata/gc-internal.h"
32 #include "mono/metadata/threads-types.h"
33 #include "mono/metadata/string-icalls.h"
34 #include "mono/metadata/attrdefs.h"
35 #include "mono/metadata/gc-internal.h"
36 #include "mono/metadata/cominterop.h"
37 #include "mono/utils/mono-counters.h"
38 #include "mono/utils/mono-tls.h"
42 /* #define DEBUG_RUNTIME_CODE */
44 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
48 MONO_MARSHAL_NONE, /* No marshalling needed */
49 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
50 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
51 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
52 } MonoXDomainMarshalType;
55 #include "mono/cil/opcode.def"
60 struct _MonoRemotingMethods {
62 MonoMethod *invoke_with_check;
63 MonoMethod *xdomain_invoke;
64 MonoMethod *xdomain_dispatch;
67 typedef struct _MonoRemotingMethods MonoRemotingMethods;
70 * This mutex protects the various marshalling related caches in MonoImage
71 * and a few other data structures static to this file.
72 * Note that when this lock is held it is not possible to take other runtime
73 * locks like the loader lock.
75 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
76 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
77 static CRITICAL_SECTION marshal_mutex;
78 static gboolean marshal_mutex_initialized;
80 static MonoNativeTlsKey last_error_tls_id;
82 static MonoNativeTlsKey load_type_info_tls_id;
85 delegate_hash_table_add (MonoDelegate *d);
88 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
91 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
94 mono_struct_delete_old (MonoClass *klass, char *ptr);
97 mono_marshal_string_to_utf16 (MonoString *s);
100 mono_marshal_string_to_utf16_copy (MonoString *s);
103 mono_string_to_lpstr (MonoString *string_obj);
105 static MonoStringBuilder *
106 mono_string_utf8_to_builder2 (char *text);
108 static MonoStringBuilder *
109 mono_string_utf16_to_builder2 (gunichar2 *text);
112 mono_string_new_len_wrapper (const char *text, guint length);
115 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
118 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
121 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
123 static MonoAsyncResult *
124 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
127 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
130 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
133 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
136 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
139 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
141 static MonoReflectionType *
142 type_from_handle (MonoType *handle);
145 mono_marshal_set_last_error_windows (int error);
147 static void init_safe_handle (void);
149 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
150 static MonoMethod *sh_dangerous_add_ref;
151 static MonoMethod *sh_dangerous_release;
157 sh_dangerous_add_ref = mono_class_get_method_from_name (
158 mono_defaults.safehandle_class, "DangerousAddRef", 1);
159 sh_dangerous_release = mono_class_get_method_from_name (
160 mono_defaults.safehandle_class, "DangerousRelease", 0);
164 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
166 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
168 mono_register_jit_icall (func, name, sig, save);
171 static MonoMethodSignature*
172 signature_dup (MonoImage *image, MonoMethodSignature *sig)
174 MonoMethodSignature *res;
177 res = mono_metadata_signature_alloc (image, sig->param_count);
178 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
179 memcpy (res, sig, sigsize);
185 mono_signature_no_pinvoke (MonoMethod *method)
187 MonoMethodSignature *sig = mono_method_signature (method);
189 sig = signature_dup (method->klass->image, sig);
190 sig->pinvoke = FALSE;
197 mono_marshal_init (void)
199 static gboolean module_initialized = FALSE;
201 if (!module_initialized) {
202 module_initialized = TRUE;
203 InitializeCriticalSection (&marshal_mutex);
204 marshal_mutex_initialized = TRUE;
205 mono_native_tls_alloc (last_error_tls_id, NULL);
206 mono_native_tls_alloc (load_type_info_tls_id, NULL);
208 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
209 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
210 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
211 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
212 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
213 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
214 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
215 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
216 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
217 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
218 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
219 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
220 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
221 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
222 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
223 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
224 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
225 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
226 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
227 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
228 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
229 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
230 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
231 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
232 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
233 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
234 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
235 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
236 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
237 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
238 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
239 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
240 register_icall (g_free, "g_free", "void ptr", FALSE);
241 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
242 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
243 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
244 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
245 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
246 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
247 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
248 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
249 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
250 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
251 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
252 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
253 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
254 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
255 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
256 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
258 mono_cominterop_init ();
263 mono_marshal_cleanup (void)
265 mono_cominterop_cleanup ();
267 mono_native_tls_free (load_type_info_tls_id);
268 mono_native_tls_free (last_error_tls_id);
269 DeleteCriticalSection (&marshal_mutex);
270 marshal_mutex_initialized = FALSE;
273 MonoClass *byte_array_class;
274 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
275 static MonoMethod *method_set_context, *method_get_context;
276 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
279 mono_remoting_marshal_init (void)
283 static gboolean module_initialized = FALSE;
285 if (!module_initialized) {
286 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
287 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
288 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
289 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
291 klass = mono_defaults.real_proxy_class;
292 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
294 klass = mono_defaults.exception_class;
295 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
297 klass = mono_defaults.thread_class;
298 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
300 klass = mono_defaults.appdomain_class;
301 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
302 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
304 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
305 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
307 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
308 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
310 module_initialized = TRUE;
315 mono_delegate_to_ftnptr (MonoDelegate *delegate)
317 MonoMethod *method, *wrapper;
319 uint32_t target_handle = 0;
324 if (delegate->delegate_trampoline)
325 return delegate->delegate_trampoline;
327 klass = ((MonoObject *)delegate)->vtable->klass;
328 g_assert (klass->delegate);
330 method = delegate->method;
332 if (mono_method_signature (method)->pinvoke) {
333 const char *exc_class, *exc_arg;
336 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
338 g_assert (exc_class);
339 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
344 if (delegate->target) {
345 /* Produce a location which can be embedded in JITted code */
346 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
349 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
351 delegate->delegate_trampoline = mono_compile_method (wrapper);
353 // Add the delegate to the delegate hash table
354 delegate_hash_table_add (delegate);
356 /* when the object is collected, collect the dynamic method, too */
357 mono_object_register_finalizer ((MonoObject*)delegate);
359 return delegate->delegate_trampoline;
363 * this hash table maps from a delegate trampoline object to a weak reference
364 * of the delegate. As an optimizations with a non-moving GC we store the
365 * object pointer itself, otherwise we use a GC handle.
367 static GHashTable *delegate_hash_table;
370 delegate_hash_table_new (void) {
371 return g_hash_table_new (NULL, NULL);
375 delegate_hash_table_remove (MonoDelegate *d)
377 #ifdef HAVE_MOVING_COLLECTOR
380 mono_marshal_lock ();
381 if (delegate_hash_table == NULL)
382 delegate_hash_table = delegate_hash_table_new ();
383 #ifdef HAVE_MOVING_COLLECTOR
384 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
386 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
387 mono_marshal_unlock ();
388 #ifdef HAVE_MOVING_COLLECTOR
389 mono_gchandle_free (gchandle);
394 delegate_hash_table_add (MonoDelegate *d)
396 #ifdef HAVE_MOVING_COLLECTOR
397 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
398 guint32 old_gchandle;
400 mono_marshal_lock ();
401 if (delegate_hash_table == NULL)
402 delegate_hash_table = delegate_hash_table_new ();
403 #ifdef HAVE_MOVING_COLLECTOR
404 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
405 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
407 mono_gchandle_free (old_gchandle);
409 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
411 mono_marshal_unlock ();
415 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
417 #ifdef HAVE_MOVING_COLLECTOR
425 mono_marshal_lock ();
426 if (delegate_hash_table == NULL)
427 delegate_hash_table = delegate_hash_table_new ();
429 #ifdef HAVE_MOVING_COLLECTOR
430 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
431 mono_marshal_unlock ();
433 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
437 d = g_hash_table_lookup (delegate_hash_table, ftn);
438 mono_marshal_unlock ();
441 /* This is a native function, so construct a delegate for it */
442 static MonoClass *UnmanagedFunctionPointerAttribute;
443 MonoMethodSignature *sig;
445 MonoMarshalSpec **mspecs;
446 MonoCustomAttrInfo *cinfo;
447 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
448 MonoMethod *invoke = mono_get_delegate_invoke (klass);
449 MonoMethodPInvoke piinfo;
452 memset (&piinfo, 0, sizeof (piinfo));
453 if (!UnmanagedFunctionPointerAttribute)
454 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
456 /* The attribute is only available in Net 2.0 */
457 if (UnmanagedFunctionPointerAttribute) {
459 * The pinvoke attributes are stored in a real custom attribute so we have to
462 cinfo = mono_custom_attrs_from_class (klass);
464 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
466 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
469 mono_custom_attrs_free (cinfo);
473 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
474 mono_method_get_marshal_info (invoke, mspecs);
475 /* Freed below so don't alloc from mempool */
476 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
479 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
481 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
483 mono_metadata_free_marshal_spec (mspecs [i]);
487 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
488 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
491 if (d->object.vtable->domain != mono_domain_get ())
492 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
498 mono_delegate_free_ftnptr (MonoDelegate *delegate)
503 delegate_hash_table_remove (delegate);
505 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
507 if (!delegate->target) {
508 /* The wrapper method is shared between delegates -> no need to free it */
515 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
518 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
520 /*the target gchandle is the first entry after size and the wrapper itself.*/
521 gchandle = GPOINTER_TO_UINT (method_data [2]);
524 mono_gchandle_free (gchandle);
526 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
531 mono_array_to_savearray (MonoArray *array)
536 g_assert_not_reached ();
541 mono_array_to_lparray (MonoArray *array)
543 gpointer *nativeArray = NULL;
544 int nativeArraySize = 0;
553 klass = array->obj.vtable->klass;
555 switch (klass->element_class->byval_arg.type) {
557 g_assert_not_reached ();
560 case MONO_TYPE_CLASS:
561 nativeArraySize = array->max_length;
562 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
563 for(i = 0; i < nativeArraySize; ++i)
564 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
568 case MONO_TYPE_BOOLEAN:
581 case MONO_TYPE_VALUETYPE:
585 case MONO_TYPE_GENERICINST:
586 case MONO_TYPE_OBJECT:
587 case MONO_TYPE_ARRAY:
588 case MONO_TYPE_SZARRAY:
589 case MONO_TYPE_STRING:
591 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
592 g_assert_not_reached ();
595 return array->vector;
599 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
610 klass = array->obj.vtable->klass;
612 switch (klass->element_class->byval_arg.type) {
613 case MONO_TYPE_CLASS:
614 for(i = 0; i < array->max_length; ++i)
615 mono_marshal_free_ccw(nativeArray[i]);
623 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
625 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
627 if (elclass == mono_defaults.byte_class) {
628 GError *error = NULL;
632 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
635 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
639 g_error_free (error);
642 g_assert_not_reached ();
646 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
648 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
650 if (elclass == mono_defaults.byte_class) {
652 GError *error = NULL;
654 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
656 MonoException *exc = mono_get_exception_argument ("string", error->message);
657 g_error_free (error);
658 mono_raise_exception (exc);
661 memcpy (native_arr, as, MIN (strlen (as), elnum));
664 g_assert_not_reached ();
669 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
671 GError *error = NULL;
681 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
683 if (items_written > mono_stringbuilder_capacity (sb))
684 items_written = mono_stringbuilder_capacity (sb);
687 if (! sb->str || sb->str == sb->cached_str) {
688 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
689 sb->cached_str = NULL;
692 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
693 sb->length = items_written;
695 g_error_free (error);
701 mono_string_utf8_to_builder2 (char *text)
704 MonoStringBuilder *sb;
705 static MonoClass *string_builder_class;
706 static MonoMethod *sb_ctor;
713 if (!string_builder_class) {
714 MonoMethodDesc *desc;
716 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
717 g_assert (string_builder_class);
718 desc = mono_method_desc_new (":.ctor(int)", FALSE);
719 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
721 mono_method_desc_free (desc);
726 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
729 mono_runtime_invoke (sb_ctor, sb, args, &exc);
732 mono_string_utf8_to_builder (sb, text);
738 * FIXME: This routine does not seem to do what it seems to do
739 * the @text is never copied into the string builder
742 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
749 g_assert (mono_string_chars (sb->str) == text);
751 for (len = 0; text [len] != 0; ++len)
758 mono_string_utf16_to_builder2 (gunichar2 *text)
761 MonoStringBuilder *sb;
762 static MonoClass *string_builder_class;
763 static MonoMethod *sb_ctor;
770 if (!string_builder_class) {
771 MonoMethodDesc *desc;
773 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
774 g_assert (string_builder_class);
775 desc = mono_method_desc_new (":.ctor(int)", FALSE);
776 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
778 mono_method_desc_free (desc);
781 for (len = 0; text [len] != 0; ++len)
784 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
787 mono_runtime_invoke (sb_ctor, sb, args, &exc);
791 memcpy (mono_string_chars (sb->str), text, len * 2);
797 * mono_string_builder_to_utf8:
798 * @sb: the string builder
800 * Converts to utf8 the contents of the MonoStringBuilder.
802 * Returns: a utf8 string with the contents of the StringBuilder.
804 * The return value must be released with g_free.
807 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
809 GError *error = NULL;
810 gchar *tmp, *res = NULL;
815 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
817 * The sb could have been allocated with the default capacity and be empty.
818 * we need to alloc a buffer of the default capacity in this case.
820 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
821 sb->cached_str = NULL;
824 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
826 g_error_free (error);
827 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
829 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
830 memcpy (res, tmp, sb->length + 1);
838 * mono_string_builder_to_utf16:
839 * @sb: the string builder
841 * Converts to utf16 the contents of the MonoStringBuilder.
843 * Returns: a utf16 string with the contents of the StringBuilder.
845 * The return value must not be freed.
848 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
856 * The stringbuilder might not have ownership of this string. If this is
857 * the case, we must duplicate the string, so that we don't munge immutable
860 if (sb->str == sb->cached_str) {
862 * The sb could have been allocated with the default capacity and be empty.
863 * we need to alloc a buffer of the default capacity in this case.
865 if (sb->str->length == 0)
866 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
868 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
869 sb->cached_str = NULL;
873 *(mono_string_chars (sb->str)) = '\0';
875 return mono_string_chars (sb->str);
879 mono_string_to_lpstr (MonoString *s)
884 GError *error = NULL;
890 as = CoTaskMemAlloc (1);
895 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
897 MonoException *exc = mono_get_exception_argument ("string", error->message);
898 g_error_free (error);
899 mono_raise_exception(exc);
902 as = CoTaskMemAlloc (len + 1);
903 memcpy (as, tmp, len + 1);
908 return mono_string_to_utf8 (s);
913 mono_string_to_ansibstr (MonoString *string_obj)
915 g_error ("UnmanagedMarshal.BStr is not implemented.");
920 * mono_string_to_byvalstr:
921 * @dst: Where to store the null-terminated utf8 decoded string.
922 * @src: the MonoString to copy.
923 * @size: the maximum number of bytes to copy.
925 * Copies the MonoString pointed to by @src as a utf8 string
926 * into @dst, it copies at most @size bytes into the destination.
929 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
934 g_assert (dst != NULL);
937 memset (dst, 0, size);
941 s = mono_string_to_utf8 (src);
942 len = MIN (size, strlen (s));
945 memcpy (dst, s, len);
950 * mono_string_to_byvalwstr:
951 * @dst: Where to store the null-terminated utf16 decoded string.
952 * @src: the MonoString to copy.
953 * @size: the maximum number of bytes to copy.
955 * Copies the MonoString pointed to by @src as a utf16 string into
956 * @dst, it copies at most @size bytes into the destination (including
957 * a terminating 16-bit zero terminator).
960 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
964 g_assert (dst != NULL);
968 memset (dst, 0, size * 2);
972 len = MIN (size, (mono_string_length (src)));
973 memcpy (dst, mono_string_chars (src), size * 2);
974 if (size <= mono_string_length (src))
976 *((gunichar2 *) dst + len) = 0;
980 mono_string_new_len_wrapper (const char *text, guint length)
982 return mono_string_new_len (mono_domain_get (), text, length);
986 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
989 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
990 mono_mb_emit_byte (mb, CEE_LDIND_I);
991 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
992 mono_mb_emit_byte (mb, CEE_ADD);
993 mono_mb_emit_byte (mb, CEE_LDIND_I);
994 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
995 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
996 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
997 pos = mono_mb_emit_branch (mb, branch_code);
1002 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1005 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1006 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1007 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1008 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1009 mono_mb_emit_icon (mb, -1);
1010 pos = mono_mb_emit_branch (mb, branch_code);
1015 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1017 static int offset = -1;
1021 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1023 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1024 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1025 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1026 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1027 mono_mb_emit_ldflda (mb, offset);
1028 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1029 mono_mb_emit_icon (mb, mask);
1030 mono_mb_emit_byte (mb, CEE_AND);
1031 mono_mb_emit_icon (mb, 0);
1032 return mono_mb_emit_branch (mb, branch_code);
1036 * mono_mb_emit_exception_marshal_directive:
1038 * This function assumes ownership of MSG, which should be malloc-ed.
1041 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1046 s = mono_image_strdup (mb->method->klass->image, msg);
1051 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1055 mono_type_to_ldind (MonoType *type)
1061 switch (type->type) {
1063 return CEE_LDIND_I1;
1065 case MONO_TYPE_BOOLEAN:
1066 return CEE_LDIND_U1;
1068 return CEE_LDIND_I2;
1070 case MONO_TYPE_CHAR:
1071 return CEE_LDIND_U2;
1073 return CEE_LDIND_I4;
1075 return CEE_LDIND_U4;
1079 case MONO_TYPE_FNPTR:
1081 case MONO_TYPE_CLASS:
1082 case MONO_TYPE_STRING:
1083 case MONO_TYPE_OBJECT:
1084 case MONO_TYPE_SZARRAY:
1085 case MONO_TYPE_ARRAY:
1086 return CEE_LDIND_REF;
1089 return CEE_LDIND_I8;
1091 return CEE_LDIND_R4;
1093 return CEE_LDIND_R8;
1094 case MONO_TYPE_VALUETYPE:
1095 if (type->data.klass->enumtype) {
1096 type = mono_class_enum_basetype (type->data.klass);
1100 case MONO_TYPE_TYPEDBYREF:
1102 case MONO_TYPE_GENERICINST:
1103 type = &type->data.generic_class->container_class->byval_arg;
1106 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1112 mono_type_to_stind (MonoType *type)
1118 switch (type->type) {
1121 case MONO_TYPE_BOOLEAN:
1122 return CEE_STIND_I1;
1125 case MONO_TYPE_CHAR:
1126 return CEE_STIND_I2;
1129 return CEE_STIND_I4;
1133 case MONO_TYPE_FNPTR:
1135 case MONO_TYPE_CLASS:
1136 case MONO_TYPE_STRING:
1137 case MONO_TYPE_OBJECT:
1138 case MONO_TYPE_SZARRAY:
1139 case MONO_TYPE_ARRAY:
1140 return CEE_STIND_REF;
1143 return CEE_STIND_I8;
1145 return CEE_STIND_R4;
1147 return CEE_STIND_R8;
1148 case MONO_TYPE_VALUETYPE:
1149 if (type->data.klass->enumtype) {
1150 type = mono_class_enum_basetype (type->data.klass);
1154 case MONO_TYPE_TYPEDBYREF:
1156 case MONO_TYPE_GENERICINST:
1157 type = &type->data.generic_class->container_class->byval_arg;
1160 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1166 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1169 case MONO_MARSHAL_CONV_BOOL_I4:
1170 mono_mb_emit_ldloc (mb, 1);
1171 mono_mb_emit_ldloc (mb, 0);
1172 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1173 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1174 mono_mb_emit_byte (mb, 3);
1175 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1176 mono_mb_emit_byte (mb, CEE_BR_S);
1177 mono_mb_emit_byte (mb, 1);
1178 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1179 mono_mb_emit_byte (mb, CEE_STIND_I1);
1181 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1182 mono_mb_emit_ldloc (mb, 1);
1183 mono_mb_emit_ldloc (mb, 0);
1184 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1185 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1186 mono_mb_emit_byte (mb, 3);
1187 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1188 mono_mb_emit_byte (mb, CEE_BR_S);
1189 mono_mb_emit_byte (mb, 1);
1190 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1191 mono_mb_emit_byte (mb, CEE_STIND_I1);
1193 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1194 MonoClass *eklass = NULL;
1197 if (type->type == MONO_TYPE_SZARRAY) {
1198 eklass = type->data.klass;
1200 g_assert_not_reached ();
1203 esize = mono_class_native_size (eklass, NULL);
1205 /* create a new array */
1206 mono_mb_emit_ldloc (mb, 1);
1207 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1208 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1209 mono_mb_emit_byte (mb, CEE_STIND_I);
1211 if (eklass->blittable) {
1212 /* copy the elements */
1213 mono_mb_emit_ldloc (mb, 1);
1214 mono_mb_emit_byte (mb, CEE_LDIND_I);
1215 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1216 mono_mb_emit_byte (mb, CEE_ADD);
1217 mono_mb_emit_ldloc (mb, 0);
1218 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1219 mono_mb_emit_byte (mb, CEE_PREFIX1);
1220 mono_mb_emit_byte (mb, CEE_CPBLK);
1223 int array_var, src_var, dst_var, index_var;
1224 guint32 label2, label3;
1226 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1227 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1228 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1231 mono_mb_emit_ldloc (mb, 1);
1232 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1233 mono_mb_emit_stloc (mb, array_var);
1235 /* save the old src pointer */
1236 mono_mb_emit_ldloc (mb, 0);
1237 mono_mb_emit_stloc (mb, src_var);
1238 /* save the old dst pointer */
1239 mono_mb_emit_ldloc (mb, 1);
1240 mono_mb_emit_stloc (mb, dst_var);
1242 /* Emit marshalling loop */
1243 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1244 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1245 mono_mb_emit_stloc (mb, index_var);
1248 label2 = mono_mb_get_label (mb);
1249 mono_mb_emit_ldloc (mb, index_var);
1250 mono_mb_emit_ldloc (mb, array_var);
1251 mono_mb_emit_byte (mb, CEE_LDLEN);
1252 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1254 /* src is already set */
1257 mono_mb_emit_ldloc (mb, array_var);
1258 mono_mb_emit_ldloc (mb, index_var);
1259 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1260 mono_mb_emit_stloc (mb, 1);
1262 /* Do the conversion */
1263 emit_struct_conv (mb, eklass, TRUE);
1266 mono_mb_emit_add_to_local (mb, index_var, 1);
1268 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1270 mono_mb_patch_branch (mb, label3);
1272 /* restore the old src pointer */
1273 mono_mb_emit_ldloc (mb, src_var);
1274 mono_mb_emit_stloc (mb, 0);
1275 /* restore the old dst pointer */
1276 mono_mb_emit_ldloc (mb, dst_var);
1277 mono_mb_emit_stloc (mb, 1);
1281 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1282 MonoClass *eclass = mono_defaults.char_class;
1284 /* create a new array */
1285 mono_mb_emit_ldloc (mb, 1);
1286 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1287 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1288 mono_mb_emit_byte (mb, CEE_STIND_REF);
1290 mono_mb_emit_ldloc (mb, 1);
1291 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1292 mono_mb_emit_ldloc (mb, 0);
1293 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1294 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1295 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1298 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1299 mono_mb_emit_ldloc (mb, 1);
1300 mono_mb_emit_ldloc (mb, 0);
1301 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1302 mono_mb_emit_byte (mb, CEE_STIND_REF);
1304 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1305 mono_mb_emit_ldloc (mb, 1);
1306 mono_mb_emit_ldloc (mb, 0);
1307 mono_mb_emit_icall (mb, mono_string_from_utf16);
1308 mono_mb_emit_byte (mb, CEE_STIND_REF);
1310 case MONO_MARSHAL_CONV_STR_LPTSTR:
1311 mono_mb_emit_ldloc (mb, 1);
1312 mono_mb_emit_ldloc (mb, 0);
1313 mono_mb_emit_byte (mb, CEE_LDIND_I);
1315 mono_mb_emit_icall (mb, mono_string_from_utf16);
1317 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1319 mono_mb_emit_byte (mb, CEE_STIND_REF);
1321 case MONO_MARSHAL_CONV_STR_LPSTR:
1322 mono_mb_emit_ldloc (mb, 1);
1323 mono_mb_emit_ldloc (mb, 0);
1324 mono_mb_emit_byte (mb, CEE_LDIND_I);
1325 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1326 mono_mb_emit_byte (mb, CEE_STIND_REF);
1328 case MONO_MARSHAL_CONV_STR_LPWSTR:
1329 mono_mb_emit_ldloc (mb, 1);
1330 mono_mb_emit_ldloc (mb, 0);
1331 mono_mb_emit_byte (mb, CEE_LDIND_I);
1332 mono_mb_emit_icall (mb, mono_string_from_utf16);
1333 mono_mb_emit_byte (mb, CEE_STIND_REF);
1335 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1336 MonoClass *klass = mono_class_from_mono_type (type);
1337 int src_var, dst_var;
1339 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1340 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1342 /* *dst = new object */
1343 mono_mb_emit_ldloc (mb, 1);
1344 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1345 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1346 mono_mb_emit_byte (mb, CEE_STIND_REF);
1348 /* save the old src pointer */
1349 mono_mb_emit_ldloc (mb, 0);
1350 mono_mb_emit_stloc (mb, src_var);
1351 /* save the old dst pointer */
1352 mono_mb_emit_ldloc (mb, 1);
1353 mono_mb_emit_stloc (mb, dst_var);
1355 /* dst = pointer to newly created object data */
1356 mono_mb_emit_ldloc (mb, 1);
1357 mono_mb_emit_byte (mb, CEE_LDIND_I);
1358 mono_mb_emit_icon (mb, sizeof (MonoObject));
1359 mono_mb_emit_byte (mb, CEE_ADD);
1360 mono_mb_emit_stloc (mb, 1);
1362 emit_struct_conv (mb, klass, TRUE);
1364 /* restore the old src pointer */
1365 mono_mb_emit_ldloc (mb, src_var);
1366 mono_mb_emit_stloc (mb, 0);
1367 /* restore the old dst pointer */
1368 mono_mb_emit_ldloc (mb, dst_var);
1369 mono_mb_emit_stloc (mb, 1);
1372 case MONO_MARSHAL_CONV_DEL_FTN: {
1373 MonoClass *klass = mono_class_from_mono_type (type);
1375 mono_mb_emit_ldloc (mb, 1);
1376 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1377 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1378 mono_mb_emit_ldloc (mb, 0);
1379 mono_mb_emit_byte (mb, CEE_LDIND_I);
1380 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1381 mono_mb_emit_byte (mb, CEE_STIND_REF);
1384 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1385 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1389 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1390 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1391 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1392 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1394 #endif /* DISABLE_COM */
1396 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1398 * Passing SafeHandles as ref does not allow the unmanaged code
1399 * to change the SafeHandle value. If the value is changed,
1400 * we should issue a diagnostic exception (NotSupportedException)
1401 * that informs the user that changes to handles in unmanaged code
1404 * Since we currently have no access to the original
1405 * SafeHandle that was used during the marshalling,
1406 * for now we just ignore this, and ignore/discard any
1407 * changes that might have happened to the handle.
1412 case MONO_MARSHAL_CONV_HANDLEREF: {
1414 * Passing HandleRefs in a struct that is ref()ed does not
1415 * copy the values back to the HandleRef
1420 case MONO_MARSHAL_CONV_STR_BSTR:
1421 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1422 case MONO_MARSHAL_CONV_STR_TBSTR:
1423 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1425 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1427 mono_mb_emit_exception_marshal_directive (mb, msg);
1434 conv_to_icall (MonoMarshalConv conv)
1437 case MONO_MARSHAL_CONV_STR_LPWSTR:
1438 return mono_marshal_string_to_utf16;
1439 case MONO_MARSHAL_CONV_LPWSTR_STR:
1440 return mono_string_from_utf16;
1441 case MONO_MARSHAL_CONV_LPTSTR_STR:
1443 return mono_string_from_utf16;
1445 return mono_string_new_wrapper;
1447 case MONO_MARSHAL_CONV_LPSTR_STR:
1448 return mono_string_new_wrapper;
1449 case MONO_MARSHAL_CONV_STR_LPTSTR:
1451 return mono_marshal_string_to_utf16;
1453 return mono_string_to_lpstr;
1455 case MONO_MARSHAL_CONV_STR_LPSTR:
1456 return mono_string_to_lpstr;
1457 case MONO_MARSHAL_CONV_STR_BSTR:
1458 return mono_string_to_bstr;
1459 case MONO_MARSHAL_CONV_BSTR_STR:
1460 return mono_string_from_bstr;
1461 case MONO_MARSHAL_CONV_STR_TBSTR:
1462 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1463 return mono_string_to_ansibstr;
1464 case MONO_MARSHAL_CONV_SB_LPSTR:
1465 return mono_string_builder_to_utf8;
1466 case MONO_MARSHAL_CONV_SB_LPTSTR:
1468 return mono_string_builder_to_utf16;
1470 return mono_string_builder_to_utf8;
1472 case MONO_MARSHAL_CONV_SB_LPWSTR:
1473 return mono_string_builder_to_utf16;
1474 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1475 return mono_array_to_savearray;
1476 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1477 return mono_array_to_lparray;
1478 case MONO_MARSHAL_FREE_LPARRAY:
1479 return mono_free_lparray;
1480 case MONO_MARSHAL_CONV_DEL_FTN:
1481 return mono_delegate_to_ftnptr;
1482 case MONO_MARSHAL_CONV_FTN_DEL:
1483 return mono_ftnptr_to_delegate;
1484 case MONO_MARSHAL_CONV_LPSTR_SB:
1485 return mono_string_utf8_to_builder;
1486 case MONO_MARSHAL_CONV_LPTSTR_SB:
1488 return mono_string_utf16_to_builder;
1490 return mono_string_utf8_to_builder;
1492 case MONO_MARSHAL_CONV_LPWSTR_SB:
1493 return mono_string_utf16_to_builder;
1494 case MONO_MARSHAL_FREE_ARRAY:
1495 return mono_marshal_free_array;
1496 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1497 return mono_string_to_byvalstr;
1498 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1499 return mono_string_to_byvalwstr;
1501 g_assert_not_reached ();
1508 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1513 case MONO_MARSHAL_CONV_BOOL_I4:
1514 mono_mb_emit_ldloc (mb, 1);
1515 mono_mb_emit_ldloc (mb, 0);
1516 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1517 mono_mb_emit_byte (mb, CEE_STIND_I4);
1519 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1520 mono_mb_emit_ldloc (mb, 1);
1521 mono_mb_emit_ldloc (mb, 0);
1522 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1523 mono_mb_emit_byte (mb, CEE_NEG);
1524 mono_mb_emit_byte (mb, CEE_STIND_I2);
1526 case MONO_MARSHAL_CONV_STR_LPWSTR:
1527 case MONO_MARSHAL_CONV_STR_LPSTR:
1528 case MONO_MARSHAL_CONV_STR_LPTSTR:
1529 case MONO_MARSHAL_CONV_STR_BSTR:
1530 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1531 case MONO_MARSHAL_CONV_STR_TBSTR: {
1534 /* free space if free == true */
1535 mono_mb_emit_ldloc (mb, 2);
1536 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_byte (mb, CEE_LDIND_I);
1539 mono_mb_emit_icall (mb, g_free);
1540 mono_mb_patch_short_branch (mb, pos);
1542 mono_mb_emit_ldloc (mb, 1);
1543 mono_mb_emit_ldloc (mb, 0);
1544 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1545 mono_mb_emit_icall (mb, conv_to_icall (conv));
1546 mono_mb_emit_byte (mb, CEE_STIND_I);
1549 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1550 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1551 case MONO_MARSHAL_CONV_DEL_FTN:
1552 mono_mb_emit_ldloc (mb, 1);
1553 mono_mb_emit_ldloc (mb, 0);
1554 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1555 mono_mb_emit_icall (mb, conv_to_icall (conv));
1556 mono_mb_emit_byte (mb, CEE_STIND_I);
1558 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1559 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1562 mono_mb_emit_ldloc (mb, 1); /* dst */
1563 mono_mb_emit_ldloc (mb, 0);
1564 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1565 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1566 mono_mb_emit_icall (mb, conv_to_icall (conv));
1569 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1570 MonoClass *eklass = NULL;
1573 if (type->type == MONO_TYPE_SZARRAY) {
1574 eklass = type->data.klass;
1576 g_assert_not_reached ();
1579 if (eklass->valuetype)
1580 esize = mono_class_native_size (eklass, NULL);
1582 esize = sizeof (gpointer);
1584 mono_mb_emit_ldloc (mb, 0);
1585 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1586 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1588 if (eklass->blittable) {
1589 mono_mb_emit_ldloc (mb, 1);
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1592 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1593 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1594 mono_mb_emit_byte (mb, CEE_PREFIX1);
1595 mono_mb_emit_byte (mb, CEE_CPBLK);
1597 int array_var, src_var, dst_var, index_var;
1598 guint32 label2, label3;
1600 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1601 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1602 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1605 mono_mb_emit_ldloc (mb, 0);
1606 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1607 mono_mb_emit_stloc (mb, array_var);
1609 /* save the old src pointer */
1610 mono_mb_emit_ldloc (mb, 0);
1611 mono_mb_emit_stloc (mb, src_var);
1612 /* save the old dst pointer */
1613 mono_mb_emit_ldloc (mb, 1);
1614 mono_mb_emit_stloc (mb, dst_var);
1616 /* Emit marshalling loop */
1617 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1618 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1619 mono_mb_emit_stloc (mb, index_var);
1622 label2 = mono_mb_get_label (mb);
1623 mono_mb_emit_ldloc (mb, index_var);
1624 mono_mb_emit_ldloc (mb, array_var);
1625 mono_mb_emit_byte (mb, CEE_LDLEN);
1626 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1629 mono_mb_emit_ldloc (mb, array_var);
1630 mono_mb_emit_ldloc (mb, index_var);
1631 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1632 mono_mb_emit_stloc (mb, 0);
1634 /* dst is already set */
1636 /* Do the conversion */
1637 emit_struct_conv (mb, eklass, FALSE);
1640 mono_mb_emit_add_to_local (mb, index_var, 1);
1642 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1644 mono_mb_patch_branch (mb, label3);
1646 /* restore the old src pointer */
1647 mono_mb_emit_ldloc (mb, src_var);
1648 mono_mb_emit_stloc (mb, 0);
1649 /* restore the old dst pointer */
1650 mono_mb_emit_ldloc (mb, dst_var);
1651 mono_mb_emit_stloc (mb, 1);
1654 mono_mb_patch_branch (mb, pos);
1657 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1658 mono_mb_emit_ldloc (mb, 0);
1659 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1660 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1662 mono_mb_emit_ldloc (mb, 1);
1663 mono_mb_emit_ldloc (mb, 0);
1664 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1665 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1666 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1667 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1668 mono_mb_patch_short_branch (mb, pos);
1671 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1672 int src_var, dst_var;
1674 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1675 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1677 mono_mb_emit_ldloc (mb, 0);
1678 mono_mb_emit_byte (mb, CEE_LDIND_I);
1679 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1681 /* save the old src pointer */
1682 mono_mb_emit_ldloc (mb, 0);
1683 mono_mb_emit_stloc (mb, src_var);
1684 /* save the old dst pointer */
1685 mono_mb_emit_ldloc (mb, 1);
1686 mono_mb_emit_stloc (mb, dst_var);
1688 /* src = pointer to object data */
1689 mono_mb_emit_ldloc (mb, 0);
1690 mono_mb_emit_byte (mb, CEE_LDIND_I);
1691 mono_mb_emit_icon (mb, sizeof (MonoObject));
1692 mono_mb_emit_byte (mb, CEE_ADD);
1693 mono_mb_emit_stloc (mb, 0);
1695 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1697 /* restore the old src pointer */
1698 mono_mb_emit_ldloc (mb, src_var);
1699 mono_mb_emit_stloc (mb, 0);
1700 /* restore the old dst pointer */
1701 mono_mb_emit_ldloc (mb, dst_var);
1702 mono_mb_emit_stloc (mb, 1);
1704 mono_mb_patch_branch (mb, pos);
1709 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1710 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1711 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1712 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1714 #endif /* DISABLE_COM */
1716 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1717 int dar_release_slot, pos;
1719 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1722 * The following is ifdefed-out, because I have no way of doing the
1723 * DangerousRelease when destroying the structure
1726 /* set release = false */
1727 mono_mb_emit_icon (mb, 0);
1728 mono_mb_emit_stloc (mb, dar_release_slot);
1729 if (!sh_dangerous_add_ref)
1730 init_safe_handle ();
1732 /* safehandle.DangerousAddRef (ref release) */
1733 mono_mb_emit_ldloc (mb, 0); /* the source */
1734 mono_mb_emit_byte (mb, CEE_LDIND_I);
1735 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1736 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1738 mono_mb_emit_ldloc (mb, 0);
1739 mono_mb_emit_byte (mb, CEE_LDIND_I);
1740 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1741 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1742 mono_mb_patch_branch (mb, pos);
1744 /* Pull the handle field from SafeHandle */
1745 mono_mb_emit_ldloc (mb, 1);
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_byte (mb, CEE_LDIND_I);
1748 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1749 mono_mb_emit_byte (mb, CEE_LDIND_I);
1750 mono_mb_emit_byte (mb, CEE_STIND_I);
1754 case MONO_MARSHAL_CONV_HANDLEREF: {
1755 mono_mb_emit_ldloc (mb, 1);
1756 mono_mb_emit_ldloc (mb, 0);
1757 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1758 mono_mb_emit_byte (mb, CEE_ADD);
1759 mono_mb_emit_byte (mb, CEE_LDIND_I);
1760 mono_mb_emit_byte (mb, CEE_STIND_I);
1765 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1766 MonoException *exc = mono_get_exception_not_implemented (msg);
1767 g_warning ("%s", msg);
1769 mono_raise_exception (exc);
1775 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1776 MonoMarshalNative string_encoding)
1778 MonoMarshalType *info;
1782 emit_struct_conv(mb, klass->parent, to_object);
1784 info = mono_marshal_load_type_info (klass);
1786 if (info->native_size == 0)
1789 if (klass->blittable) {
1790 int msize = mono_class_value_size (klass, NULL);
1791 g_assert (msize == info->native_size);
1792 mono_mb_emit_ldloc (mb, 1);
1793 mono_mb_emit_ldloc (mb, 0);
1794 mono_mb_emit_icon (mb, msize);
1795 mono_mb_emit_byte (mb, CEE_PREFIX1);
1796 mono_mb_emit_byte (mb, CEE_CPBLK);
1798 mono_mb_emit_add_to_local (mb, 0, msize);
1799 mono_mb_emit_add_to_local (mb, 1, msize);
1803 if (klass != mono_defaults.safehandle_class) {
1804 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1805 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1806 mono_type_full_name (&klass->byval_arg));
1807 mono_mb_emit_exception_marshal_directive (mb, msg);
1812 for (i = 0; i < info->num_fields; i++) {
1813 MonoMarshalNative ntype;
1814 MonoMarshalConv conv;
1815 MonoType *ftype = info->fields [i].field->type;
1818 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1820 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1823 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1826 msize = klass->instance_size - info->fields [i].field->offset;
1827 usize = info->native_size - info->fields [i].offset;
1829 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1830 usize = info->fields [i + 1].offset - info->fields [i].offset;
1833 if (klass != mono_defaults.safehandle_class){
1835 * FIXME: Should really check for usize==0 and msize>0, but we apply
1836 * the layout to the managed structure as well.
1839 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1840 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1841 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1842 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1843 "reference field at the same offset as another field.",
1844 mono_type_full_name (&klass->byval_arg));
1849 case MONO_MARSHAL_CONV_NONE: {
1852 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1853 ftype->type == MONO_TYPE_U) {
1854 mono_mb_emit_ldloc (mb, 1);
1855 mono_mb_emit_ldloc (mb, 0);
1856 mono_mb_emit_byte (mb, CEE_LDIND_I);
1857 mono_mb_emit_byte (mb, CEE_STIND_I);
1868 case MONO_TYPE_BOOLEAN:
1871 case MONO_TYPE_CHAR:
1877 mono_mb_emit_ldloc (mb, 1);
1878 mono_mb_emit_ldloc (mb, 0);
1879 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1881 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1882 mono_mb_emit_byte (mb, CEE_STIND_I2);
1884 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1885 mono_mb_emit_byte (mb, CEE_STIND_I1);
1888 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1889 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1892 case MONO_TYPE_VALUETYPE: {
1893 int src_var, dst_var;
1895 if (ftype->data.klass->enumtype) {
1896 ftype = mono_class_enum_basetype (ftype->data.klass);
1900 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1901 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1903 /* save the old src pointer */
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_stloc (mb, src_var);
1906 /* save the old dst pointer */
1907 mono_mb_emit_ldloc (mb, 1);
1908 mono_mb_emit_stloc (mb, dst_var);
1910 emit_struct_conv (mb, ftype->data.klass, to_object);
1912 /* restore the old src pointer */
1913 mono_mb_emit_ldloc (mb, src_var);
1914 mono_mb_emit_stloc (mb, 0);
1915 /* restore the old dst pointer */
1916 mono_mb_emit_ldloc (mb, dst_var);
1917 mono_mb_emit_stloc (mb, 1);
1920 case MONO_TYPE_OBJECT: {
1921 mono_init_com_types ();
1923 static MonoMethod *variant_clear = NULL;
1924 static MonoMethod *get_object_for_native_variant = NULL;
1927 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1928 if (!get_object_for_native_variant)
1929 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1930 mono_mb_emit_ldloc (mb, 1);
1931 mono_mb_emit_ldloc (mb, 0);
1932 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1933 mono_mb_emit_byte (mb, CEE_STIND_REF);
1935 mono_mb_emit_ldloc (mb, 0);
1936 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1939 static MonoMethod *get_native_variant_for_object = NULL;
1941 if (!get_native_variant_for_object)
1942 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1944 mono_mb_emit_ldloc (mb, 0);
1945 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1946 mono_mb_emit_ldloc (mb, 1);
1947 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1953 g_warning ("marshaling type %02x not implemented", ftype->type);
1954 g_assert_not_reached ();
1959 int src_var, dst_var;
1961 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1962 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1964 /* save the old src pointer */
1965 mono_mb_emit_ldloc (mb, 0);
1966 mono_mb_emit_stloc (mb, src_var);
1967 /* save the old dst pointer */
1968 mono_mb_emit_ldloc (mb, 1);
1969 mono_mb_emit_stloc (mb, dst_var);
1972 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1974 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1976 /* restore the old src pointer */
1977 mono_mb_emit_ldloc (mb, src_var);
1978 mono_mb_emit_stloc (mb, 0);
1979 /* restore the old dst pointer */
1980 mono_mb_emit_ldloc (mb, dst_var);
1981 mono_mb_emit_stloc (mb, 1);
1986 mono_mb_emit_add_to_local (mb, 0, usize);
1987 mono_mb_emit_add_to_local (mb, 1, msize);
1989 mono_mb_emit_add_to_local (mb, 0, msize);
1990 mono_mb_emit_add_to_local (mb, 1, usize);
1996 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1998 emit_struct_conv_full (mb, klass, to_object, -1);
2002 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2004 /* Call DestroyStructure */
2005 /* FIXME: Only do this if needed */
2006 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2007 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2008 mono_mb_emit_ldloc (mb, struct_var);
2009 mono_mb_emit_icall (mb, mono_struct_delete_old);
2013 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2017 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2018 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2019 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2021 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2022 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2024 mono_mb_emit_icall (mb, checkpoint_func);
2026 mono_mb_patch_branch (mb, pos_noabort);
2030 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2032 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2035 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2039 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2041 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2045 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2047 emit_thread_interrupt_checkpoint (mb);
2050 static MonoAsyncResult *
2051 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2053 MonoMethodMessage *msg;
2054 MonoDelegate *async_callback;
2055 MonoMulticastDelegate *mcast_delegate;
2059 MonoMethod *method = NULL, *method2 = NULL;
2061 g_assert (delegate);
2062 mcast_delegate = (MonoMulticastDelegate *) delegate;
2063 if (mcast_delegate->prev != NULL)
2064 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2066 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2068 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2069 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2071 /* If the target is a proxy, make a direct call. Is proxy's work
2072 // to make the call asynchronous.
2074 MonoAsyncResult *ares;
2076 MonoArray *out_args;
2077 method = delegate->method;
2079 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2080 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2081 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2082 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2083 MONO_OBJECT_SETREF (msg, async_result, ares);
2084 msg->call_type = CallType_BeginInvoke;
2087 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2089 mono_raise_exception ((MonoException *) exc);
2094 klass = delegate->object.vtable->klass;
2096 method = mono_get_delegate_invoke (klass);
2097 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2100 g_assert (method != NULL);
2102 im = mono_get_delegate_invoke (method->klass);
2103 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2105 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2109 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2111 int i, params_var, tmp_var;
2113 /* allocate local (pointer) *params[] */
2114 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2115 /* allocate local (pointer) tmp */
2116 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2118 /* alloate space on stack to store an array of pointers to the arguments */
2119 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2120 mono_mb_emit_byte (mb, CEE_PREFIX1);
2121 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2122 mono_mb_emit_stloc (mb, params_var);
2125 mono_mb_emit_ldloc (mb, params_var);
2126 mono_mb_emit_stloc (mb, tmp_var);
2128 if (save_this && sig->hasthis) {
2129 mono_mb_emit_ldloc (mb, tmp_var);
2130 mono_mb_emit_ldarg_addr (mb, 0);
2131 mono_mb_emit_byte (mb, CEE_STIND_I);
2132 /* tmp = tmp + sizeof (gpointer) */
2133 if (sig->param_count)
2134 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2138 for (i = 0; i < sig->param_count; i++) {
2139 mono_mb_emit_ldloc (mb, tmp_var);
2140 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2141 mono_mb_emit_byte (mb, CEE_STIND_I);
2142 /* tmp = tmp + sizeof (gpointer) */
2143 if (i < (sig->param_count - 1))
2144 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2151 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2155 GString *res = g_string_new ("");
2158 g_string_append (res, prefix);
2159 g_string_append_c (res, '_');
2162 mono_type_get_desc (res, sig->ret, FALSE);
2165 g_string_append (res, "__this__");
2167 for (i = 0; i < sig->param_count; ++i) {
2168 g_string_append_c (res, '_');
2169 mono_type_get_desc (res, sig->params [i], FALSE);
2172 g_string_free (res, FALSE);
2177 * mono_marshal_get_string_encoding:
2179 * Return the string encoding which should be used for a given parameter.
2181 static MonoMarshalNative
2182 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2184 /* First try the parameter marshal info */
2186 if (spec->native == MONO_NATIVE_LPARRAY) {
2187 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2188 return spec->data.array_data.elem_type;
2191 return spec->native;
2195 return MONO_NATIVE_LPSTR;
2197 /* Then try the method level marshal info */
2198 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2199 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2200 return MONO_NATIVE_LPSTR;
2201 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2202 return MONO_NATIVE_LPWSTR;
2203 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2205 return MONO_NATIVE_LPWSTR;
2207 return MONO_NATIVE_LPSTR;
2210 return MONO_NATIVE_LPSTR;
2214 static MonoMarshalConv
2215 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2217 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2220 case MONO_NATIVE_LPWSTR:
2221 return MONO_MARSHAL_CONV_STR_LPWSTR;
2222 case MONO_NATIVE_LPSTR:
2223 case MONO_NATIVE_VBBYREFSTR:
2224 return MONO_MARSHAL_CONV_STR_LPSTR;
2225 case MONO_NATIVE_LPTSTR:
2226 return MONO_MARSHAL_CONV_STR_LPTSTR;
2227 case MONO_NATIVE_BSTR:
2228 return MONO_MARSHAL_CONV_STR_BSTR;
2234 static MonoMarshalConv
2235 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2237 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2240 case MONO_NATIVE_LPWSTR:
2241 return MONO_MARSHAL_CONV_SB_LPWSTR;
2243 case MONO_NATIVE_LPSTR:
2244 return MONO_MARSHAL_CONV_SB_LPSTR;
2246 case MONO_NATIVE_LPTSTR:
2247 return MONO_MARSHAL_CONV_SB_LPTSTR;
2254 static MonoMarshalConv
2255 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2257 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2262 case MONO_NATIVE_LPWSTR:
2264 return MONO_MARSHAL_CONV_LPWSTR_STR;
2265 case MONO_NATIVE_LPSTR:
2266 case MONO_NATIVE_VBBYREFSTR:
2267 return MONO_MARSHAL_CONV_LPSTR_STR;
2268 case MONO_NATIVE_LPTSTR:
2269 return MONO_MARSHAL_CONV_LPTSTR_STR;
2270 case MONO_NATIVE_BSTR:
2271 return MONO_MARSHAL_CONV_BSTR_STR;
2277 static MonoMarshalConv
2278 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2280 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2285 case MONO_NATIVE_LPWSTR:
2287 * mono_string_builder_to_utf16 does not allocate a
2288 * new buffer, so no need to free it.
2291 return MONO_MARSHAL_CONV_LPWSTR_SB;
2292 case MONO_NATIVE_LPSTR:
2293 return MONO_MARSHAL_CONV_LPSTR_SB;
2295 case MONO_NATIVE_LPTSTR:
2296 return MONO_MARSHAL_CONV_LPTSTR_SB;
2304 * Return whenever a field of a native structure or an array member needs to
2308 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2310 MonoMarshalNative encoding;
2311 MonoMarshalConv conv;
2314 case MONO_TYPE_VALUETYPE:
2315 /* FIXME: Optimize this */
2317 case MONO_TYPE_OBJECT:
2318 case MONO_TYPE_CLASS:
2319 if (t->data.klass == mono_defaults.stringbuilder_class) {
2321 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2325 case MONO_TYPE_STRING:
2326 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2327 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2334 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2337 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2340 mono_marshal_lock ();
2343 g_hash_table_new (hash_func, equal_func);
2344 mono_memory_barrier ();
2347 mono_marshal_unlock ();
2353 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2356 mono_marshal_lock ();
2359 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2360 mono_memory_barrier ();
2363 mono_marshal_unlock ();
2369 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2371 return get_cache (var, hash_func, equal_func);
2375 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2379 mono_marshal_lock ();
2380 res = g_hash_table_lookup (cache, key);
2381 mono_marshal_unlock ();
2385 /* Create the method from the builder and place it in the cache */
2387 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2388 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2393 mono_marshal_lock ();
2394 res = g_hash_table_lookup (cache, key);
2395 mono_marshal_unlock ();
2398 newm = mono_mb_create_method (mb, sig, max_stack);
2399 mono_marshal_lock ();
2400 res = g_hash_table_lookup (cache, key);
2403 g_hash_table_insert (cache, key, res);
2404 mono_marshal_set_wrapper_info (res, key);
2405 mono_marshal_unlock ();
2407 mono_marshal_unlock ();
2408 mono_free_method (newm);
2416 static inline MonoMethod*
2417 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2419 MonoMethod *res = NULL;
2420 MonoRemotingMethods *wrps;
2422 mono_marshal_lock ();
2423 if (method->klass->image->remoting_invoke_cache)
2424 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2429 switch (wrapper_type) {
2430 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2431 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2432 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2433 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2437 /* it is important to do the unlock after the load from wrps, since in
2438 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2439 * to take the loader lock and some other thread may set the fields.
2441 mono_marshal_unlock ();
2445 /* Create the method from the builder and place it in the cache */
2446 static inline MonoMethod*
2447 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2448 MonoMethodSignature *sig, int max_stack)
2450 MonoMethod **res = NULL;
2451 MonoRemotingMethods *wrps;
2452 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2454 mono_marshal_lock ();
2455 wrps = g_hash_table_lookup (cache, key);
2457 wrps = g_new0 (MonoRemotingMethods, 1);
2458 g_hash_table_insert (cache, key, wrps);
2461 switch (mb->method->wrapper_type) {
2462 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2463 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2464 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2465 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2466 default: g_assert_not_reached (); break;
2468 mono_marshal_unlock ();
2472 newm = mono_mb_create_method (mb, sig, max_stack);
2474 mono_marshal_lock ();
2477 mono_marshal_set_wrapper_info (*res, key);
2478 mono_marshal_unlock ();
2480 mono_marshal_unlock ();
2481 mono_free_method (newm);
2489 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2492 int wrapper_type = wrapper->wrapper_type;
2494 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2497 switch (wrapper_type) {
2498 case MONO_WRAPPER_REMOTING_INVOKE:
2499 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2500 case MONO_WRAPPER_XDOMAIN_INVOKE:
2501 case MONO_WRAPPER_SYNCHRONIZED:
2502 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2503 case MONO_WRAPPER_RUNTIME_INVOKE:
2504 res = mono_method_get_wrapper_data (wrapper, 1);
2514 * mono_marshal_get_wrapper_info:
2516 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2519 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2521 g_assert (wrapper->wrapper_type);
2523 return mono_method_get_wrapper_data (wrapper, 1);
2527 * mono_marshal_set_wrapper_info:
2529 * Store an arbitrary pointer inside the wrapper which is retrievable by
2530 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2531 * wrapper (method->wrapper_type).
2534 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2538 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2541 datav = ((MonoMethodWrapper *)method)->method_data;
2546 * get_wrapper_target_class:
2548 * Return the class where a wrapper method should be placed.
2551 get_wrapper_target_class (MonoImage *image)
2557 * - can't put all wrappers into an mscorlib class, because they reference
2558 * metadata (signature) so they should be put into the same image as the
2559 * method they wrap, so they are unloaded together.
2560 * - putting them into a class with a type initalizer could cause the
2561 * initializer to be executed which can be a problem if the wrappers are
2563 * - putting them into an inflated class can cause problems if the the
2564 * class is deleted because it references an image which is unloaded.
2565 * To avoid these problems, we put the wrappers into the <Module> class of
2569 klass = ((MonoDynamicImage*)image)->wrappers_type;
2571 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2578 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2580 MonoMethodSignature *sig;
2581 MonoMethodBuilder *mb;
2587 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2588 !strcmp (method->name, "BeginInvoke"));
2590 sig = mono_signature_no_pinvoke (method);
2592 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2593 (GHashFunc)mono_signature_hash,
2594 (GCompareFunc)mono_metadata_signature_equal);
2595 if ((res = mono_marshal_find_in_cache (cache, sig)))
2598 g_assert (sig->hasthis);
2600 name = mono_signature_to_name (sig, "begin_invoke");
2601 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2604 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2606 mono_mb_emit_ldarg (mb, 0);
2607 mono_mb_emit_ldloc (mb, params_var);
2608 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2609 mono_mb_emit_byte (mb, CEE_RET);
2611 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2617 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2619 MonoDomain *domain = mono_domain_get ();
2620 MonoAsyncResult *ares;
2621 MonoMethod *method = NULL;
2622 MonoMethodSignature *sig;
2623 MonoMethodMessage *msg;
2624 MonoObject *res, *exc;
2625 MonoArray *out_args;
2628 g_assert (delegate);
2630 if (!delegate->method_info) {
2631 g_assert (delegate->method);
2632 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2635 if (!delegate->method_info || !delegate->method_info->method)
2636 g_assert_not_reached ();
2638 klass = delegate->object.vtable->klass;
2640 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2641 g_assert (method != NULL);
2643 sig = mono_signature_no_pinvoke (method);
2645 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2647 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2649 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2653 if (ares->async_delegate != (MonoObject*)delegate) {
2654 mono_raise_exception (mono_get_exception_invalid_operation (
2655 "The IAsyncResult object provided does not match this delegate."));
2659 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2660 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2661 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2662 mono_message_init (domain, msg, delegate->method_info, NULL);
2663 msg->call_type = CallType_EndInvoke;
2664 MONO_OBJECT_SETREF (msg, async_result, ares);
2665 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2667 res = mono_thread_pool_finish (ares, &out_args, &exc);
2671 if (((MonoException*)exc)->stack_trace) {
2672 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2674 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2676 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2679 mono_raise_exception ((MonoException*)exc);
2682 mono_method_return_message_restore (method, params, out_args);
2687 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2689 MonoType *t = mono_type_get_underlying_type (return_type);
2691 if (return_type->byref)
2692 return_type = &mono_defaults.int_class->byval_arg;
2695 case MONO_TYPE_VOID:
2696 g_assert_not_reached ();
2699 case MONO_TYPE_STRING:
2700 case MONO_TYPE_CLASS:
2701 case MONO_TYPE_OBJECT:
2702 case MONO_TYPE_ARRAY:
2703 case MONO_TYPE_SZARRAY:
2707 case MONO_TYPE_BOOLEAN:
2710 case MONO_TYPE_CHAR:
2720 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2721 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2723 case MONO_TYPE_GENERICINST:
2724 if (!mono_type_generic_inst_is_valuetype (t))
2727 case MONO_TYPE_VALUETYPE: {
2728 MonoClass *klass = mono_class_from_mono_type (return_type);
2729 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2730 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2734 g_warning ("type 0x%x not handled", return_type->type);
2735 g_assert_not_reached ();
2738 mono_mb_emit_byte (mb, CEE_RET);
2742 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2744 MonoMethodSignature *sig;
2745 MonoMethodBuilder *mb;
2751 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2752 !strcmp (method->name, "EndInvoke"));
2754 sig = mono_signature_no_pinvoke (method);
2756 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2757 (GHashFunc)mono_signature_hash,
2758 (GCompareFunc)mono_metadata_signature_equal);
2759 if ((res = mono_marshal_find_in_cache (cache, sig)))
2762 g_assert (sig->hasthis);
2764 name = mono_signature_to_name (sig, "end_invoke");
2765 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2768 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2770 mono_mb_emit_ldarg (mb, 0);
2771 mono_mb_emit_ldloc (mb, params_var);
2772 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2774 if (sig->ret->type == MONO_TYPE_VOID) {
2775 mono_mb_emit_byte (mb, CEE_POP);
2776 mono_mb_emit_byte (mb, CEE_RET);
2778 mono_mb_emit_restore_result (mb, sig->ret);
2780 res = mono_mb_create_and_cache (cache, sig,
2781 mb, sig, sig->param_count + 16);
2788 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2790 MonoMethodMessage *msg;
2791 MonoTransparentProxy *this;
2792 MonoObject *res, *exc;
2793 MonoArray *out_args;
2795 this = *((MonoTransparentProxy **)params [0]);
2798 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2800 /* skip the this pointer */
2803 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2806 MonoMethodSignature *sig = mono_method_signature (method);
2807 int count = sig->param_count;
2808 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2810 for (i=0; i<count; i++) {
2811 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2812 if (class->valuetype) {
2813 if (sig->params [i]->byref) {
2814 mparams[i] = *((gpointer *)params [i]);
2816 /* runtime_invoke expects a boxed instance */
2817 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2818 mparams[i] = mono_nullable_box (params [i], class);
2820 mparams[i] = params [i];
2823 mparams[i] = *((gpointer**)params [i]);
2827 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2830 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2832 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2835 mono_raise_exception ((MonoException *)exc);
2837 mono_method_return_message_restore (method, params, out_args);
2843 mono_marshal_get_remoting_invoke (MonoMethod *method)
2845 MonoMethodSignature *sig;
2846 MonoMethodBuilder *mb;
2852 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2855 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2856 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2857 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2858 g_assert (vtable); /*FIXME do proper error handling*/
2860 if (!vtable->remote) {
2862 return mono_cominterop_get_invoke (method);
2864 g_assert_not_reached ();
2869 sig = mono_signature_no_pinvoke (method);
2871 /* we cant remote methods without this pointer */
2875 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2878 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2879 mb->method->save_lmf = 1;
2881 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2883 mono_mb_emit_ptr (mb, method);
2884 mono_mb_emit_ldloc (mb, params_var);
2885 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2886 emit_thread_interrupt_checkpoint (mb);
2888 if (sig->ret->type == MONO_TYPE_VOID) {
2889 mono_mb_emit_byte (mb, CEE_POP);
2890 mono_mb_emit_byte (mb, CEE_RET);
2892 mono_mb_emit_restore_result (mb, sig->ret);
2895 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2901 /* mono_get_xdomain_marshal_type()
2902 * Returns the kind of marshalling that a type needs for cross domain calls.
2904 static MonoXDomainMarshalType
2905 mono_get_xdomain_marshal_type (MonoType *t)
2908 case MONO_TYPE_VOID:
2909 g_assert_not_reached ();
2913 case MONO_TYPE_BOOLEAN:
2916 case MONO_TYPE_CHAR:
2923 return MONO_MARSHAL_NONE;
2924 case MONO_TYPE_STRING:
2925 return MONO_MARSHAL_COPY;
2926 case MONO_TYPE_ARRAY:
2927 case MONO_TYPE_SZARRAY: {
2928 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2929 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2930 return MONO_MARSHAL_COPY;
2935 return MONO_MARSHAL_SERIALIZE;
2939 /* mono_marshal_xdomain_copy_value
2940 * Makes a copy of "val" suitable for the current domain.
2943 mono_marshal_xdomain_copy_value (MonoObject *val)
2946 if (val == NULL) return NULL;
2948 domain = mono_domain_get ();
2950 switch (mono_object_class (val)->byval_arg.type) {
2951 case MONO_TYPE_VOID:
2952 g_assert_not_reached ();
2956 case MONO_TYPE_BOOLEAN:
2959 case MONO_TYPE_CHAR:
2965 case MONO_TYPE_R8: {
2966 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2968 case MONO_TYPE_STRING: {
2969 MonoString *str = (MonoString *) val;
2970 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2972 case MONO_TYPE_ARRAY:
2973 case MONO_TYPE_SZARRAY: {
2975 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2976 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2977 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2978 if (mt == MONO_MARSHAL_COPY) {
2979 int i, len = mono_array_length (acopy);
2980 for (i = 0; i < len; i++) {
2981 MonoObject *item = mono_array_get (acopy, gpointer, i);
2982 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2985 return (MonoObject *) acopy;
2989 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2990 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2991 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2992 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2993 newsb->length = oldsb->length;
2994 newsb->max_capacity = (gint32)0x7fffffff;
2995 return (MonoObject *) newsb;
3000 /* mono_marshal_xdomain_copy_out_value()
3001 * Copies the contents of the src instance into the dst instance. src and dst
3002 * must have the same type, and if they are arrays, the same size.
3005 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3007 if (src == NULL || dst == NULL) return;
3009 g_assert (mono_object_class (src) == mono_object_class (dst));
3011 switch (mono_object_class (src)->byval_arg.type) {
3012 case MONO_TYPE_ARRAY:
3013 case MONO_TYPE_SZARRAY: {
3014 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3015 if (mt == MONO_MARSHAL_SERIALIZE) return;
3016 if (mt == MONO_MARSHAL_COPY) {
3017 int i, len = mono_array_length ((MonoArray *)dst);
3018 for (i = 0; i < len; i++) {
3019 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3020 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3023 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3029 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3030 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3031 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3033 MONO_OBJECT_SETREF (dst_sb, str, mono_string_new_utf16 (mono_object_domain (dst), mono_string_chars (src_sb->str), mono_string_length (src_sb->str)));
3034 dst_sb->cached_str = NULL;
3035 dst_sb->length = src_sb->length;
3040 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3042 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3043 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3047 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3049 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3052 /* mono_marshal_supports_fast_xdomain()
3053 * Returns TRUE if the method can use the fast xdomain wrapper.
3056 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3058 return !method->klass->contextbound &&
3059 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3063 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3065 MonoDomain *current_domain = mono_domain_get ();
3066 MonoDomain *domain = mono_domain_get_by_id (id);
3068 if (!domain || !mono_domain_set (domain, FALSE))
3069 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3072 mono_thread_push_appdomain_ref (domain);
3074 mono_thread_pop_appdomain_ref ();
3076 return current_domain->domain_id;
3080 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3082 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3085 /* mono_marshal_emit_load_domain_method ()
3086 * Loads into the stack a pointer to the code of the provided method for
3087 * the current domain.
3090 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3092 /* We need a pointer to the method for the running domain (not the domain
3093 * that compiles the method).
3095 mono_mb_emit_ptr (mb, method);
3096 mono_mb_emit_icall (mb, mono_compile_method);
3099 /* mono_marshal_check_domain_image ()
3100 * Returns TRUE if the image is loaded in the specified
3101 * application domain.
3104 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3109 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3113 mono_domain_assemblies_lock (domain);
3114 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3116 if (ass->image == image)
3119 mono_domain_assemblies_unlock (domain);
3124 /* mono_marshal_get_xappdomain_dispatch ()
3125 * Generates a method that dispatches a method call from another domain into
3126 * the current domain.
3129 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3131 MonoMethodSignature *sig, *csig;
3132 MonoMethodBuilder *mb;
3134 int i, j, param_index, copy_locals_base;
3135 MonoClass *ret_class = NULL;
3136 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3137 MonoExceptionClause *main_clause;
3139 gboolean copy_return;
3141 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3144 sig = mono_method_signature (method);
3145 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3148 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3149 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3150 csig->params [j++] = &byte_array_class->this_arg;
3151 csig->params [j++] = &byte_array_class->this_arg;
3152 for (i = 0; i < sig->param_count; i++) {
3153 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3154 csig->params [j++] = sig->params [i];
3157 csig->ret = sig->ret;
3159 csig->ret = &mono_defaults.void_class->byval_arg;
3161 csig->hasthis = FALSE;
3163 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3164 mb->method->save_lmf = 1;
3168 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3169 if (complex_count > 0)
3170 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3171 if (sig->ret->type != MONO_TYPE_VOID) {
3172 loc_return = mono_mb_add_local (mb, sig->ret);
3173 ret_class = mono_class_from_mono_type (sig->ret);
3178 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3179 main_clause->try_offset = mono_mb_get_label (mb);
3181 /* Clean the call context */
3183 mono_mb_emit_byte (mb, CEE_LDNULL);
3184 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3185 mono_mb_emit_byte (mb, CEE_POP);
3187 /* Deserialize call data */
3189 mono_mb_emit_ldarg (mb, 1);
3190 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3191 mono_mb_emit_byte (mb, CEE_DUP);
3192 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3194 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3195 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3197 if (complex_count > 0)
3198 mono_mb_emit_stloc (mb, loc_array);
3200 mono_mb_emit_byte (mb, CEE_POP);
3202 mono_mb_patch_short_branch (mb, pos);
3204 /* Get the target object */
3206 mono_mb_emit_ldarg (mb, 0);
3207 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3209 /* Load the arguments */
3211 copy_locals_base = mb->locals;
3212 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3214 for (i = 0; i < sig->param_count; i++) {
3215 MonoType *pt = sig->params [i];
3216 MonoClass *pclass = mono_class_from_mono_type (pt);
3217 switch (marshal_types [i]) {
3218 case MONO_MARSHAL_SERIALIZE: {
3219 /* take the value from the serialized array */
3220 mono_mb_emit_ldloc (mb, loc_array);
3221 mono_mb_emit_icon (mb, j++);
3223 if (pclass->valuetype) {
3224 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3225 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3227 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3230 if (pclass->valuetype) {
3231 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3232 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3233 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3235 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3236 if (pclass != mono_defaults.object_class) {
3237 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3243 case MONO_MARSHAL_COPY_OUT: {
3244 /* Keep a local copy of the value since we need to copy it back after the call */
3245 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3246 mono_mb_emit_ldarg (mb, param_index++);
3247 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3248 mono_mb_emit_byte (mb, CEE_DUP);
3249 mono_mb_emit_stloc (mb, copy_local);
3252 case MONO_MARSHAL_COPY: {
3253 mono_mb_emit_ldarg (mb, param_index);
3255 mono_mb_emit_byte (mb, CEE_DUP);
3256 mono_mb_emit_byte (mb, CEE_DUP);
3257 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3258 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3259 mono_mb_emit_byte (mb, CEE_STIND_REF);
3261 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3266 case MONO_MARSHAL_NONE:
3267 mono_mb_emit_ldarg (mb, param_index++);
3272 /* Make the call to the real object */
3274 emit_thread_force_interrupt_checkpoint (mb);
3276 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3278 if (sig->ret->type != MONO_TYPE_VOID)
3279 mono_mb_emit_stloc (mb, loc_return);
3281 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3285 for (i = 0; i < sig->param_count; i++) {
3286 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3287 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3288 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3289 mono_mb_emit_ldarg (mb, param_index);
3290 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3295 /* Serialize the return values */
3297 if (complex_out_count > 0) {
3298 /* Reset parameters in the array that don't need to be serialized back */
3300 for (i = 0; i < sig->param_count; i++) {
3301 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3302 if (!sig->params [i]->byref) {
3303 mono_mb_emit_ldloc (mb, loc_array);
3304 mono_mb_emit_icon (mb, j);
3305 mono_mb_emit_byte (mb, CEE_LDNULL);
3306 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3311 /* Add the return value to the array */
3313 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3314 mono_mb_emit_ldloc (mb, loc_array);
3315 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3316 mono_mb_emit_ldloc (mb, loc_return);
3318 g_assert (ret_class); /*FIXME properly fail here*/
3319 if (ret_class->valuetype) {
3320 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3322 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3327 mono_mb_emit_ldarg (mb, 1);
3328 mono_mb_emit_ldloc (mb, loc_array);
3329 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3330 mono_mb_emit_byte (mb, CEE_STIND_REF);
3331 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3332 mono_mb_emit_ldarg (mb, 1);
3333 mono_mb_emit_ldloc (mb, loc_return);
3334 if (ret_class->valuetype) {
3335 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3337 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3338 mono_mb_emit_byte (mb, CEE_STIND_REF);
3340 mono_mb_emit_ldarg (mb, 1);
3341 mono_mb_emit_byte (mb, CEE_LDNULL);
3342 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3343 mono_mb_emit_byte (mb, CEE_STIND_REF);
3346 mono_mb_emit_ldarg (mb, 2);
3347 mono_mb_emit_byte (mb, CEE_LDNULL);
3348 mono_mb_emit_byte (mb, CEE_STIND_REF);
3349 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3351 /* Main exception catch */
3352 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3353 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3354 main_clause->data.catch_class = mono_defaults.object_class;
3357 main_clause->handler_offset = mono_mb_get_label (mb);
3358 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3359 mono_mb_emit_stloc (mb, loc_serialized_exc);
3360 mono_mb_emit_ldarg (mb, 2);
3361 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3362 mono_mb_emit_byte (mb, CEE_STIND_REF);
3363 mono_mb_emit_branch (mb, CEE_LEAVE);
3364 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3367 mono_mb_patch_branch (mb, pos_leave);
3370 mono_mb_emit_ldloc (mb, loc_return);
3372 mono_mb_emit_byte (mb, CEE_RET);
3374 mono_mb_set_clauses (mb, 1, main_clause);
3376 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3382 /* mono_marshal_get_xappdomain_invoke ()
3383 * Generates a fast remoting wrapper for cross app domain calls.
3386 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3388 MonoMethodSignature *sig;
3389 MonoMethodBuilder *mb;
3391 int i, j, complex_count, complex_out_count, copy_locals_base;
3393 MonoClass *ret_class = NULL;
3394 MonoMethod *xdomain_method;
3395 int ret_marshal_type = MONO_MARSHAL_NONE;
3396 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3397 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3398 int pos, pos_dispatch, pos_noex;
3399 gboolean copy_return = FALSE;
3403 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3406 /* we cant remote methods without this pointer */
3407 if (!mono_method_signature (method)->hasthis)
3410 if (!mono_marshal_supports_fast_xdomain (method))
3411 return mono_marshal_get_remoting_invoke (method);
3413 mono_remoting_marshal_init ();
3415 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3418 sig = mono_signature_no_pinvoke (method);
3420 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3421 mb->method->save_lmf = 1;
3423 /* Count the number of parameters that need to be serialized */
3425 marshal_types = alloca (sizeof (int) * sig->param_count);
3426 complex_count = complex_out_count = 0;
3427 for (i = 0; i < sig->param_count; i++) {
3428 MonoType *ptype = sig->params[i];
3429 int mt = mono_get_xdomain_marshal_type (ptype);
3431 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3432 * the copy will be made by reusing the original object instance
3434 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3435 mt = MONO_MARSHAL_COPY_OUT;
3436 else if (mt == MONO_MARSHAL_SERIALIZE) {
3438 if (ptype->byref) complex_out_count++;
3440 marshal_types [i] = mt;
3443 if (sig->ret->type != MONO_TYPE_VOID) {
3444 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3445 ret_class = mono_class_from_mono_type (sig->ret);
3446 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3451 if (complex_count > 0)
3452 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3453 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3454 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3456 loc_return = mono_mb_add_local (mb, sig->ret);
3457 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3458 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3459 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3460 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3462 /* Save thread domain data */
3464 mono_mb_emit_icall (mb, mono_context_get);
3465 mono_mb_emit_byte (mb, CEE_DUP);
3466 mono_mb_emit_stloc (mb, loc_context);
3468 /* If the thread is not running in the default context, it needs to go
3469 * through the whole remoting sink, since the context is going to change
3471 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3472 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3474 /* Another case in which the fast path can't be used: when the target domain
3475 * has a different image for the same assembly.
3478 /* Get the target domain id */
3480 mono_mb_emit_ldarg (mb, 0);
3481 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3482 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3483 mono_mb_emit_byte (mb, CEE_DUP);
3484 mono_mb_emit_stloc (mb, loc_real_proxy);
3486 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3487 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3488 mono_mb_emit_stloc (mb, loc_domainid);
3490 /* Check if the target domain has the same image for the required assembly */
3492 mono_mb_emit_ldloc (mb, loc_domainid);
3493 mono_mb_emit_ptr (mb, method->klass->image);
3494 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3495 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3497 /* Use the whole remoting sink to dispatch this message */
3499 mono_mb_patch_short_branch (mb, pos);
3501 mono_mb_emit_ldarg (mb, 0);
3502 for (i = 0; i < sig->param_count; i++)
3503 mono_mb_emit_ldarg (mb, i + 1);
3505 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3506 mono_mb_emit_byte (mb, CEE_RET);
3507 mono_mb_patch_short_branch (mb, pos_dispatch);
3509 /* Create the array that will hold the parameters to be serialized */
3511 if (complex_count > 0) {
3512 mono_mb_emit_icon (mb, (ret_marshal_type == MONO_MARSHAL_SERIALIZE && complex_out_count > 0) ? complex_count + 1 : complex_count); /* +1 for the return type */
3513 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3516 for (i = 0; i < sig->param_count; i++) {
3518 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3519 pclass = mono_class_from_mono_type (sig->params[i]);
3520 mono_mb_emit_byte (mb, CEE_DUP);
3521 mono_mb_emit_icon (mb, j);
3522 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3523 if (sig->params[i]->byref) {
3524 if (pclass->valuetype)
3525 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3527 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3529 if (pclass->valuetype)
3530 mono_mb_emit_op (mb, CEE_BOX, pclass);
3531 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3534 mono_mb_emit_stloc (mb, loc_array);
3536 /* Serialize parameters */
3538 mono_mb_emit_ldloc (mb, loc_array);
3539 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3540 mono_mb_emit_stloc (mb, loc_serialized_data);
3542 mono_mb_emit_byte (mb, CEE_LDNULL);
3543 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3544 mono_mb_emit_stloc (mb, loc_serialized_data);
3549 mono_mb_emit_ldloc (mb, loc_domainid);
3550 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3551 mono_marshal_emit_switch_domain (mb);
3552 mono_mb_emit_stloc (mb, loc_old_domainid);
3554 /* Load the arguments */
3556 mono_mb_emit_ldloc (mb, loc_real_proxy);
3557 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3558 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3560 copy_locals_base = mb->locals;
3561 for (i = 0; i < sig->param_count; i++) {
3562 switch (marshal_types [i]) {
3563 case MONO_MARSHAL_SERIALIZE:
3565 case MONO_MARSHAL_COPY: {
3566 mono_mb_emit_ldarg (mb, i+1);
3567 if (sig->params [i]->byref) {
3568 /* make a local copy of the byref parameter. The real parameter
3569 * will be updated after the xdomain call
3571 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3572 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3573 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3574 mono_mb_emit_stloc (mb, copy_local);
3575 mono_mb_emit_ldloc_addr (mb, copy_local);
3579 case MONO_MARSHAL_COPY_OUT:
3580 case MONO_MARSHAL_NONE:
3581 mono_mb_emit_ldarg (mb, i+1);
3586 /* Make the call to the invoke wrapper in the target domain */
3588 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3589 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3590 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3593 mono_mb_emit_stloc (mb, loc_return);
3597 mono_mb_emit_ldloc (mb, loc_old_domainid);
3598 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3599 mono_marshal_emit_switch_domain (mb);
3600 mono_mb_emit_byte (mb, CEE_POP);
3602 /* Restore thread domain data */
3604 mono_mb_emit_ldloc (mb, loc_context);
3605 mono_mb_emit_icall (mb, mono_context_set);
3607 /* if (loc_serialized_exc != null) ... */
3609 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3610 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3612 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3613 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3614 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3615 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3616 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3617 mono_mb_emit_byte (mb, CEE_THROW);
3618 mono_mb_patch_short_branch (mb, pos_noex);
3620 /* copy back non-serialized output parameters */
3623 for (i = 0; i < sig->param_count; i++) {
3624 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3625 mono_mb_emit_ldarg (mb, i + 1);
3626 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3627 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3628 mono_mb_emit_byte (mb, CEE_STIND_REF);
3631 /* Deserialize out parameters */
3633 if (complex_out_count > 0) {
3634 mono_mb_emit_ldloc (mb, loc_serialized_data);
3635 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3636 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3637 mono_mb_emit_stloc (mb, loc_array);
3639 /* Copy back output parameters and return type */
3642 for (i = 0; i < sig->param_count; i++) {
3643 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3644 if (sig->params[i]->byref) {
3645 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3646 mono_mb_emit_ldarg (mb, i + 1);
3647 mono_mb_emit_ldloc (mb, loc_array);
3648 mono_mb_emit_icon (mb, j);
3649 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3650 if (pclass->valuetype) {
3651 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3652 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3653 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3655 if (pclass != mono_defaults.object_class)
3656 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3657 mono_mb_emit_byte (mb, CEE_STIND_REF);
3663 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3664 mono_mb_emit_ldloc (mb, loc_array);
3665 mono_mb_emit_icon (mb, complex_count);
3666 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3667 if (ret_class->valuetype) {
3668 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3669 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3672 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3673 mono_mb_emit_ldloc (mb, loc_serialized_data);
3674 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3675 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3676 if (ret_class->valuetype) {
3677 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3678 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3679 } else if (ret_class != mono_defaults.object_class) {
3680 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3683 mono_mb_emit_ldloc (mb, loc_serialized_data);
3684 mono_mb_emit_byte (mb, CEE_DUP);
3685 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3686 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3688 mono_mb_patch_short_branch (mb, pos);
3689 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3690 mono_mb_emit_byte (mb, CEE_POP);
3694 mono_mb_emit_ldloc (mb, loc_return);
3695 if (ret_marshal_type == MONO_MARSHAL_COPY)
3696 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3699 mono_mb_emit_byte (mb, CEE_RET);
3701 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3708 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3710 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3711 return mono_marshal_get_xappdomain_invoke (method);
3712 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3714 return mono_cominterop_get_invoke (method);
3716 g_assert_not_reached ();
3719 return mono_marshal_get_remoting_invoke (method);
3725 G_GNUC_UNUSED static gpointer
3726 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3728 if (rp->target_domain_id != -1)
3729 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3731 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3735 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3737 MonoMethodSignature *sig;
3738 MonoMethodBuilder *mb;
3739 MonoMethod *res, *native;
3740 int i, pos, pos_rem;
3744 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3747 /* we cant remote methods without this pointer */
3748 g_assert (mono_method_signature (method)->hasthis);
3750 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3753 sig = mono_signature_no_pinvoke (method);
3755 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3757 for (i = 0; i <= sig->param_count; i++)
3758 mono_mb_emit_ldarg (mb, i);
3760 mono_mb_emit_ldarg (mb, 0);
3761 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3763 if (mono_marshal_supports_fast_xdomain (method)) {
3764 mono_mb_emit_ldarg (mb, 0);
3765 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3767 /* wrapper for cross app domain calls */
3768 native = mono_marshal_get_xappdomain_invoke (method);
3769 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3770 mono_mb_emit_byte (mb, CEE_RET);
3772 mono_mb_patch_branch (mb, pos_rem);
3774 /* wrapper for normal remote calls */
3775 native = mono_marshal_get_remoting_invoke (method);
3776 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3777 mono_mb_emit_byte (mb, CEE_RET);
3780 mono_mb_patch_branch (mb, pos);
3781 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3782 mono_mb_emit_byte (mb, CEE_RET);
3784 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3792 MonoMethodSignature *sig;
3794 } SignatureMethodPair;
3797 signature_method_pair_hash (gconstpointer data)
3799 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3801 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3805 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3807 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3811 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3813 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3814 MonoMethod *method = (MonoMethod*)user_data;
3816 return pair->method == method;
3820 free_signature_method_pair (SignatureMethodPair *pair)
3826 * the returned method invokes all methods in a multicast delegate.
3829 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3831 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3833 MonoMethodBuilder *mb;
3834 MonoMethod *res, *newm;
3836 SignatureMethodPair key;
3837 SignatureMethodPair *new_key;
3838 int local_prev, local_target;
3841 MonoMethod *target_method = NULL;
3842 MonoClass *target_class = NULL;
3843 gboolean callvirt = FALSE;
3844 gboolean closed_over_null = FALSE;
3845 gboolean static_method_with_first_arg_bound = FALSE;
3848 * If the delegate target is null, and the target method is not static, a virtual
3849 * call is made to that method with the first delegate argument as this. This is
3850 * a non-documented .NET feature.
3852 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3854 target_method = del->method;
3855 if (target_method->is_inflated) {
3856 MonoType *target_type;
3858 g_assert (method->signature->hasthis);
3859 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3860 mono_method_get_context (method));
3861 target_class = mono_class_from_mono_type (target_type);
3863 target_class = del->method->klass;
3867 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3868 !strcmp (method->name, "Invoke"));
3870 invoke_sig = sig = mono_signature_no_pinvoke (method);
3873 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3875 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3876 invoke_sig = mono_method_signature (del->method);
3877 target_method = del->method;
3878 static_method_with_first_arg_bound = TRUE;
3881 if (callvirt || static_method_with_first_arg_bound) {
3882 GHashTable **cache_ptr;
3883 if (static_method_with_first_arg_bound)
3884 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
3886 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3888 /* We need to cache the signature+method pair */
3889 mono_marshal_lock ();
3891 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3893 key.sig = invoke_sig;
3894 key.method = target_method;
3895 res = g_hash_table_lookup (cache, &key);
3896 mono_marshal_unlock ();
3900 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3901 (GHashFunc)mono_signature_hash,
3902 (GCompareFunc)mono_metadata_signature_equal);
3903 if ((res = mono_marshal_find_in_cache (cache, sig)))
3907 static_sig = signature_dup (method->klass->image, sig);
3908 static_sig->hasthis = 0;
3909 if (!static_method_with_first_arg_bound)
3910 invoke_sig = static_sig;
3912 name = mono_signature_to_name (sig, "invoke");
3913 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3916 /* allocate local 0 (object) */
3917 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3918 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3920 g_assert (sig->hasthis);
3924 * prev.Invoke( args .. );
3925 * return this.<target>( args .. );
3928 /* this wrapper can be used in unmanaged-managed transitions */
3929 emit_thread_interrupt_checkpoint (mb);
3931 /* get this->prev */
3932 mono_mb_emit_ldarg (mb, 0);
3933 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3934 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3935 mono_mb_emit_stloc (mb, local_prev);
3936 mono_mb_emit_ldloc (mb, local_prev);
3938 /* if prev != null */
3939 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3943 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3944 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3946 mono_mb_emit_ldloc (mb, local_prev);
3947 for (i = 0; i < sig->param_count; i++)
3948 mono_mb_emit_ldarg (mb, i + 1);
3949 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3950 if (sig->ret->type != MONO_TYPE_VOID)
3951 mono_mb_emit_byte (mb, CEE_POP);
3953 /* continued or prev == null */
3954 mono_mb_patch_branch (mb, pos0);
3956 /* get this->target */
3957 mono_mb_emit_ldarg (mb, 0);
3958 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3959 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3960 mono_mb_emit_stloc (mb, local_target);
3962 /*static methods with bound first arg can have null target and still be bound*/
3963 if (!static_method_with_first_arg_bound) {
3964 /* if target != null */
3965 mono_mb_emit_ldloc (mb, local_target);
3966 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3968 /* then call this->method_ptr nonstatic */
3971 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3973 mono_mb_emit_ldloc (mb, local_target);
3974 for (i = 0; i < sig->param_count; ++i)
3975 mono_mb_emit_ldarg (mb, i + 1);
3976 mono_mb_emit_ldarg (mb, 0);
3977 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3978 mono_mb_emit_byte (mb, CEE_LDIND_I );
3979 mono_mb_emit_op (mb, CEE_CALLI, sig);
3981 mono_mb_emit_byte (mb, CEE_RET);
3984 /* else [target == null] call this->method_ptr static */
3985 mono_mb_patch_branch (mb, pos0);
3989 if (!closed_over_null) {
3990 mono_mb_emit_ldarg (mb, 1);
3991 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3992 for (i = 1; i < sig->param_count; ++i)
3993 mono_mb_emit_ldarg (mb, i + 1);
3994 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3996 mono_mb_emit_byte (mb, CEE_LDNULL);
3997 for (i = 0; i < sig->param_count; ++i)
3998 mono_mb_emit_ldarg (mb, i + 1);
3999 mono_mb_emit_op (mb, CEE_CALL, target_method);
4002 if (static_method_with_first_arg_bound) {
4003 mono_mb_emit_ldloc (mb, local_target);
4004 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4005 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4007 for (i = 0; i < sig->param_count; ++i)
4008 mono_mb_emit_ldarg (mb, i + 1);
4009 mono_mb_emit_ldarg (mb, 0);
4010 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4011 mono_mb_emit_byte (mb, CEE_LDIND_I );
4012 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4015 mono_mb_emit_byte (mb, CEE_RET);
4017 if (static_method_with_first_arg_bound || callvirt) {
4018 // From mono_mb_create_and_cache
4019 mb->skip_visibility = 1;
4020 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4021 /*We perform double checked locking, so must fence before publishing*/
4022 mono_memory_barrier ();
4023 mono_marshal_lock ();
4024 res = g_hash_table_lookup (cache, &key);
4027 new_key = g_new0 (SignatureMethodPair, 1);
4029 if (static_method_with_first_arg_bound)
4030 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4031 g_hash_table_insert (cache, new_key, res);
4032 mono_marshal_set_wrapper_info (res, new_key);
4033 mono_marshal_unlock ();
4035 mono_marshal_unlock ();
4036 mono_free_method (newm);
4039 mb->skip_visibility = 1;
4040 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4048 * signature_dup_add_this:
4050 * Make a copy of @sig, adding an explicit this argument.
4052 static MonoMethodSignature*
4053 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4055 MonoMethodSignature *res;
4058 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4059 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4060 res->param_count = sig->param_count + 1;
4061 res->hasthis = FALSE;
4062 for (i = sig->param_count - 1; i >= 0; i --)
4063 res->params [i + 1] = sig->params [i];
4064 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4070 MonoMethodSignature *ctor_sig;
4071 MonoMethodSignature *sig;
4074 /* protected by the marshal lock, contains CtorSigPair pointers */
4075 static GSList *strsig_list = NULL;
4077 static MonoMethodSignature *
4078 lookup_string_ctor_signature (MonoMethodSignature *sig)
4080 MonoMethodSignature *callsig;
4084 mono_marshal_lock ();
4086 for (item = strsig_list; item; item = item->next) {
4088 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4089 * because it is lock-free.
4091 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4096 mono_marshal_unlock ();
4100 static MonoMethodSignature *
4101 add_string_ctor_signature (MonoMethod *method)
4103 MonoMethodSignature *callsig;
4106 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4107 callsig->ret = &mono_defaults.string_class->byval_arg;
4108 cs = g_new (CtorSigPair, 1);
4110 cs->ctor_sig = mono_method_signature (method);
4112 mono_marshal_lock ();
4113 strsig_list = g_slist_prepend (strsig_list, cs);
4114 mono_marshal_unlock ();
4119 * mono_marshal_get_string_ctor_signature:
4121 * Return the modified signature used by string ctors (they return the newly created
4124 MonoMethodSignature*
4125 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4127 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4129 sig = add_string_ctor_signature (method);
4135 get_runtime_invoke_type (MonoType *t, gboolean ret)
4138 /* Can't share this with 'I' as that needs another indirection */
4141 if (MONO_TYPE_IS_REFERENCE (t))
4142 return &mono_defaults.object_class->byval_arg;
4145 /* The result needs to be boxed */
4151 return &mono_defaults.sbyte_class->byval_arg;
4153 return &mono_defaults.int16_class->byval_arg;
4155 return &mono_defaults.int32_class->byval_arg;
4157 return &mono_defaults.int64_class->byval_arg;
4158 case MONO_TYPE_BOOLEAN:
4159 return &mono_defaults.sbyte_class->byval_arg;
4160 case MONO_TYPE_CHAR:
4161 return &mono_defaults.int16_class->byval_arg;
4164 return &mono_defaults.int_class->byval_arg;
4165 case MONO_TYPE_VALUETYPE:
4166 if (t->data.klass->enumtype) {
4167 t = mono_class_enum_basetype (t->data.klass);
4177 * mono_marshal_get_runtime_invoke_sig:
4179 * Return a common signature used for sharing runtime invoke wrappers.
4181 static MonoMethodSignature*
4182 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4184 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4187 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4188 for (i = 0; i < res->param_count; ++i)
4189 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4195 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4197 /* Can't share wrappers which return a vtype since it needs to be boxed */
4198 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret))
4201 return mono_metadata_signature_equal (sig1, sig2);
4207 * Emit the call to the wrapper method from a runtime invoke wrapper.
4210 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4211 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4213 gboolean virtual, gboolean need_direct_wrapper)
4215 static MonoString *string_dummy = NULL;
4217 int *tmp_nullable_locals;
4218 gboolean void_ret = FALSE;
4220 /* to make it work with our special string constructors */
4221 if (!string_dummy) {
4222 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4223 string_dummy = mono_string_new_wrapper ("dummy");
4227 g_assert (sig->hasthis);
4228 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4232 if (method->string_ctor) {
4233 mono_mb_emit_ptr (mb, string_dummy);
4235 mono_mb_emit_ldarg (mb, 0);
4239 tmp_nullable_locals = g_new0 (int, sig->param_count);
4241 for (i = 0; i < sig->param_count; i++) {
4242 MonoType *t = sig->params [i];
4245 mono_mb_emit_ldarg (mb, 1);
4247 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4248 mono_mb_emit_byte (mb, CEE_ADD);
4252 mono_mb_emit_byte (mb, CEE_LDIND_I);
4253 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4254 * So to make this work we unbox it to a local variablee and push a reference to that.
4256 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4257 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4259 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4260 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4261 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4266 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4267 type = sig->params [i]->type;
4271 case MONO_TYPE_BOOLEAN:
4275 case MONO_TYPE_CHAR:
4284 mono_mb_emit_byte (mb, CEE_LDIND_I);
4285 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4287 case MONO_TYPE_STRING:
4288 case MONO_TYPE_CLASS:
4289 case MONO_TYPE_ARRAY:
4291 case MONO_TYPE_SZARRAY:
4292 case MONO_TYPE_OBJECT:
4293 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4295 case MONO_TYPE_GENERICINST:
4296 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4297 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4302 case MONO_TYPE_VALUETYPE:
4303 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4304 type = mono_class_enum_basetype (t->data.klass)->type;
4307 mono_mb_emit_byte (mb, CEE_LDIND_I);
4308 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4309 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4310 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4311 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4313 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4317 g_assert_not_reached ();
4322 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4323 } else if (need_direct_wrapper) {
4324 mono_mb_emit_op (mb, CEE_CALL, method);
4326 mono_mb_emit_ldarg (mb, 3);
4327 mono_mb_emit_calli (mb, callsig);
4330 if (sig->ret->byref) {
4332 g_assert_not_reached ();
4335 switch (sig->ret->type) {
4336 case MONO_TYPE_VOID:
4337 if (!method->string_ctor)
4340 case MONO_TYPE_BOOLEAN:
4341 case MONO_TYPE_CHAR:
4354 case MONO_TYPE_VALUETYPE:
4355 case MONO_TYPE_TYPEDBYREF:
4356 case MONO_TYPE_GENERICINST:
4357 /* box value types */
4358 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4360 case MONO_TYPE_STRING:
4361 case MONO_TYPE_CLASS:
4362 case MONO_TYPE_ARRAY:
4363 case MONO_TYPE_SZARRAY:
4364 case MONO_TYPE_OBJECT:
4368 /* The result is an IntPtr */
4369 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4372 g_assert_not_reached ();
4376 mono_mb_emit_stloc (mb, loc_res);
4378 /* Convert back nullable-byref arguments */
4379 for (i = 0; i < sig->param_count; i++) {
4380 MonoType *t = sig->params [i];
4383 * Box the result and put it back into the array, the caller will have
4384 * to obtain it from there.
4386 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4387 mono_mb_emit_ldarg (mb, 1);
4388 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4389 mono_mb_emit_byte (mb, CEE_ADD);
4391 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4392 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4394 mono_mb_emit_byte (mb, CEE_STIND_REF);
4398 g_free (tmp_nullable_locals);
4402 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4403 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4404 gboolean virtual, gboolean need_direct_wrapper)
4407 MonoExceptionClause *clause;
4408 int loc_res, loc_exc;
4410 /* The wrapper looks like this:
4416 * } catch (Exception e) {
4424 /* allocate local 0 (object) tmp */
4425 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4426 /* allocate local 1 (object) exc */
4427 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4429 /* *exc is assumed to be initialized to NULL by the caller */
4431 mono_mb_emit_byte (mb, CEE_LDARG_2);
4432 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4437 labels [1] = mono_mb_get_label (mb);
4438 emit_thread_force_interrupt_checkpoint (mb);
4439 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4441 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4443 /* Add a try clause around the call */
4444 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4445 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4446 clause->data.catch_class = mono_defaults.exception_class;
4447 clause->try_offset = labels [1];
4448 clause->try_len = mono_mb_get_label (mb) - labels [1];
4450 clause->handler_offset = mono_mb_get_label (mb);
4453 mono_mb_emit_stloc (mb, loc_exc);
4454 mono_mb_emit_byte (mb, CEE_LDARG_2);
4455 mono_mb_emit_ldloc (mb, loc_exc);
4456 mono_mb_emit_byte (mb, CEE_STIND_REF);
4458 mono_mb_emit_branch (mb, CEE_LEAVE);
4460 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4462 mono_mb_set_clauses (mb, 1, clause);
4464 mono_mb_patch_branch (mb, labels [2]);
4465 mono_mb_emit_ldloc (mb, loc_res);
4466 mono_mb_emit_byte (mb, CEE_RET);
4471 mono_mb_patch_branch (mb, labels [0]);
4472 emit_thread_force_interrupt_checkpoint (mb);
4473 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4475 mono_mb_emit_ldloc (mb, 0);
4476 mono_mb_emit_byte (mb, CEE_RET);
4480 * generates IL code for the runtime invoke function
4481 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4483 * we also catch exceptions if exc != null
4484 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4485 * it means that the compiled code for METHOD does not have to be looked up
4486 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4487 * its METHOD argument.
4490 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4492 MonoMethodSignature *sig, *csig, *callsig;
4493 MonoMethodBuilder *mb;
4494 GHashTable *cache = NULL;
4495 MonoClass *target_klass;
4496 MonoMethod *res = NULL;
4497 static MonoMethodSignature *cctor_signature = NULL;
4498 static MonoMethodSignature *finalize_signature = NULL;
4500 const char *param_names [16];
4501 gboolean need_direct_wrapper = FALSE;
4505 if (!cctor_signature) {
4506 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4507 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4509 if (!finalize_signature) {
4510 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4511 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4512 finalize_signature->hasthis = 1;
4516 need_direct_wrapper = TRUE;
4519 * Use a separate cache indexed by methods to speed things up and to avoid the
4520 * boundless mempool growth caused by the signature_dup stuff below.
4523 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4525 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4526 res = mono_marshal_find_in_cache (cache, method);
4530 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4531 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4533 * Array Get/Set/Address methods. The JIT implements them using inline code
4534 * so we need to create an invoke wrapper which calls the method directly.
4536 need_direct_wrapper = TRUE;
4539 if (method->string_ctor) {
4540 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4542 callsig = add_string_ctor_signature (method);
4543 /* Can't share this as we push a string as this */
4544 need_direct_wrapper = TRUE;
4546 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4548 * Valuetype methods receive a managed pointer as the this argument.
4549 * Create a new signature to reflect this.
4551 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4552 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4553 need_direct_wrapper = TRUE;
4555 if (method->dynamic)
4556 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4558 callsig = mono_method_signature (method);
4562 target_klass = get_wrapper_target_class (method->klass->image);
4564 /* Try to share wrappers for non-corlib methods with simple signatures */
4565 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4566 callsig = cctor_signature;
4567 target_klass = mono_defaults.object_class;
4568 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4569 callsig = finalize_signature;
4570 target_klass = mono_defaults.object_class;
4573 if (need_direct_wrapper) {
4574 /* Already searched at the start */
4576 MonoMethodSignature *tmp_sig;
4578 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4580 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4581 (GHashFunc)mono_signature_hash,
4582 (GCompareFunc)runtime_invoke_signature_equal);
4584 /* from mono_marshal_find_in_cache */
4585 mono_marshal_lock ();
4586 res = g_hash_table_lookup (cache, callsig);
4587 mono_marshal_unlock ();
4594 /* Make a copy of the signature from the image mempool */
4596 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4600 sig = mono_method_signature (method);
4602 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4604 csig->ret = &mono_defaults.object_class->byval_arg;
4605 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4606 csig->params [0] = callsig->params [0];
4608 csig->params [0] = &mono_defaults.object_class->byval_arg;
4609 csig->params [1] = &mono_defaults.int_class->byval_arg;
4610 csig->params [2] = &mono_defaults.int_class->byval_arg;
4611 csig->params [3] = &mono_defaults.int_class->byval_arg;
4614 /* This is called from runtime code so it has to be cdecl */
4615 csig->call_convention = MONO_CALL_C;
4618 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4619 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4622 param_names [0] = "this";
4623 param_names [1] = "params";
4624 param_names [2] = "exc";
4625 param_names [3] = "method";
4626 mono_mb_set_param_names (mb, param_names);
4628 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4630 if (need_direct_wrapper) {
4631 mb->skip_visibility = 1;
4632 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4634 /* taken from mono_mb_create_and_cache */
4635 mono_marshal_lock ();
4636 res = g_hash_table_lookup (cache, callsig);
4637 mono_marshal_unlock ();
4639 /* Somebody may have created it before us */
4642 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4644 mono_marshal_lock ();
4645 res = g_hash_table_lookup (cache, callsig);
4648 g_hash_table_insert (cache, callsig, res);
4649 /* Can't insert it into wrapper_hash since the key is a signature */
4650 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4652 mono_free_method (newm);
4654 mono_marshal_unlock ();
4657 /* end mono_mb_create_and_cache */
4666 * mono_marshal_get_runtime_invoke_dynamic:
4668 * Return a method which can be used to invoke managed methods from native code
4670 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4671 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4672 * ARGS should point to an architecture specific structure containing
4673 * the arguments and space for the return value.
4674 * The other arguments are the same as for runtime_invoke (), except that
4675 * ARGS should contain the this argument too.
4676 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4677 * is only one copy of it, which is useful in full-aot.
4680 mono_marshal_get_runtime_invoke_dynamic (void)
4682 static MonoMethod *method;
4683 MonoMethodSignature *csig;
4684 MonoExceptionClause *clause;
4685 MonoMethodBuilder *mb;
4692 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4694 csig->ret = &mono_defaults.void_class->byval_arg;
4695 csig->params [0] = &mono_defaults.int_class->byval_arg;
4696 csig->params [1] = &mono_defaults.int_class->byval_arg;
4697 csig->params [2] = &mono_defaults.int_class->byval_arg;
4698 csig->params [3] = &mono_defaults.int_class->byval_arg;
4700 name = g_strdup ("runtime_invoke_dynamic");
4701 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4704 /* allocate local 0 (object) tmp */
4705 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4706 /* allocate local 1 (object) exc */
4707 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4709 /* cond set *exc to null */
4710 mono_mb_emit_byte (mb, CEE_LDARG_1);
4711 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4712 mono_mb_emit_byte (mb, 3);
4713 mono_mb_emit_byte (mb, CEE_LDARG_1);
4714 mono_mb_emit_byte (mb, CEE_LDNULL);
4715 mono_mb_emit_byte (mb, CEE_STIND_REF);
4717 emit_thread_force_interrupt_checkpoint (mb);
4719 mono_mb_emit_byte (mb, CEE_LDARG_0);
4720 mono_mb_emit_byte (mb, CEE_LDARG_2);
4721 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4722 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4724 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4726 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4727 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4728 clause->try_len = mono_mb_get_label (mb);
4731 clause->data.filter_offset = mono_mb_get_label (mb);
4733 mono_mb_emit_byte (mb, CEE_POP);
4734 mono_mb_emit_byte (mb, CEE_LDARG_1);
4735 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4736 mono_mb_emit_byte (mb, CEE_PREFIX1);
4737 mono_mb_emit_byte (mb, CEE_CGT_UN);
4738 mono_mb_emit_byte (mb, CEE_PREFIX1);
4739 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4741 clause->handler_offset = mono_mb_get_label (mb);
4744 /* store exception */
4745 mono_mb_emit_stloc (mb, 1);
4747 mono_mb_emit_byte (mb, CEE_LDARG_1);
4748 mono_mb_emit_ldloc (mb, 1);
4749 mono_mb_emit_byte (mb, CEE_STIND_REF);
4751 mono_mb_emit_byte (mb, CEE_LDNULL);
4752 mono_mb_emit_stloc (mb, 0);
4754 /* Check for the abort exception */
4755 mono_mb_emit_ldloc (mb, 1);
4756 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4757 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4759 /* Delay the abort exception */
4760 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4762 mono_mb_patch_short_branch (mb, posna);
4763 mono_mb_emit_branch (mb, CEE_LEAVE);
4765 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4767 mono_mb_set_clauses (mb, 1, clause);
4770 mono_mb_patch_branch (mb, pos);
4771 //mono_mb_emit_ldloc (mb, 0);
4772 mono_mb_emit_byte (mb, CEE_RET);
4774 mono_loader_lock ();
4775 /* double-checked locking */
4777 method = mono_mb_create_method (mb, csig, 16);
4779 mono_loader_unlock ();
4787 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4789 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4790 klass->name_space, klass->name);
4792 mono_mb_emit_exception_marshal_directive (mb, msg);
4796 * mono_marshal_get_ldfld_remote_wrapper:
4797 * @klass: The return type
4799 * This method generates a wrapper for calling mono_load_remote_field_new.
4800 * The return type is ignored for now, as mono_load_remote_field_new () always
4801 * returns an object. In the future, to optimize some codepaths, we might
4802 * call a different function that takes a pointer to a valuetype, instead.
4805 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4807 MonoMethodSignature *sig, *csig;
4808 MonoMethodBuilder *mb;
4810 static MonoMethod* cached = NULL;
4812 mono_marshal_lock ();
4814 mono_marshal_unlock ();
4817 mono_marshal_unlock ();
4819 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4821 mb->method->save_lmf = 1;
4823 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4824 sig->params [0] = &mono_defaults.object_class->byval_arg;
4825 sig->params [1] = &mono_defaults.int_class->byval_arg;
4826 sig->params [2] = &mono_defaults.int_class->byval_arg;
4827 sig->ret = &mono_defaults.object_class->byval_arg;
4829 mono_mb_emit_ldarg (mb, 0);
4830 mono_mb_emit_ldarg (mb, 1);
4831 mono_mb_emit_ldarg (mb, 2);
4833 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4834 csig->params [0] = &mono_defaults.object_class->byval_arg;
4835 csig->params [1] = &mono_defaults.int_class->byval_arg;
4836 csig->params [2] = &mono_defaults.int_class->byval_arg;
4837 csig->ret = &mono_defaults.object_class->byval_arg;
4840 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4841 emit_thread_interrupt_checkpoint (mb);
4843 mono_mb_emit_byte (mb, CEE_RET);
4845 mono_marshal_lock ();
4847 mono_marshal_unlock ();
4850 newm = mono_mb_create_method (mb, sig, 4);
4851 mono_marshal_lock ();
4856 mono_marshal_unlock ();
4858 mono_marshal_unlock ();
4859 mono_free_method (newm);
4868 * mono_marshal_get_ldfld_wrapper:
4869 * @type: the type of the field
4871 * This method generates a function which can be use to load a field with type
4872 * @type from an object. The generated function has the following signature:
4873 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4876 mono_marshal_get_ldfld_wrapper (MonoType *type)
4878 MonoMethodSignature *sig;
4879 MonoMethodBuilder *mb;
4884 int t, pos0, pos1 = 0;
4886 type = mono_type_get_underlying_type (type);
4891 if (type->type == MONO_TYPE_SZARRAY) {
4892 klass = mono_defaults.array_class;
4893 } else if (type->type == MONO_TYPE_VALUETYPE) {
4894 klass = type->data.klass;
4895 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4896 klass = mono_defaults.object_class;
4897 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4898 klass = mono_defaults.int_class;
4899 } else if (t == MONO_TYPE_GENERICINST) {
4900 if (mono_type_generic_inst_is_valuetype (type))
4901 klass = mono_class_from_mono_type (type);
4903 klass = mono_defaults.object_class;
4905 klass = mono_class_from_mono_type (type);
4908 klass = mono_defaults.int_class;
4911 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4912 if ((res = mono_marshal_find_in_cache (cache, klass)))
4915 /* we add the %p pointer value of klass because class names are not unique */
4916 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4917 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4920 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4921 sig->params [0] = &mono_defaults.object_class->byval_arg;
4922 sig->params [1] = &mono_defaults.int_class->byval_arg;
4923 sig->params [2] = &mono_defaults.int_class->byval_arg;
4924 sig->params [3] = &mono_defaults.int_class->byval_arg;
4925 sig->ret = &klass->byval_arg;
4927 mono_mb_emit_ldarg (mb, 0);
4928 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4930 mono_mb_emit_ldarg (mb, 0);
4931 mono_mb_emit_ldarg (mb, 1);
4932 mono_mb_emit_ldarg (mb, 2);
4934 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4937 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4938 csig->params [0] = &mono_defaults.object_class->byval_arg;
4939 csig->params [1] = &mono_defaults.int_class->byval_arg;
4940 csig->params [2] = &mono_defaults.int_class->byval_arg;
4941 csig->ret = &klass->this_arg;
4944 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4945 emit_thread_interrupt_checkpoint (mb);
4948 if (klass->valuetype) {
4949 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4950 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4952 mono_mb_emit_byte (mb, CEE_RET);
4956 mono_mb_patch_branch (mb, pos0);
4958 mono_mb_emit_ldarg (mb, 0);
4959 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4960 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4961 mono_mb_emit_ldarg (mb, 3);
4962 mono_mb_emit_byte (mb, CEE_ADD);
4964 if (klass->valuetype)
4965 mono_mb_patch_branch (mb, pos1);
4970 case MONO_TYPE_BOOLEAN:
4971 case MONO_TYPE_CHAR:
4980 case MONO_TYPE_ARRAY:
4981 case MONO_TYPE_SZARRAY:
4982 case MONO_TYPE_OBJECT:
4983 case MONO_TYPE_CLASS:
4984 case MONO_TYPE_STRING:
4988 case MONO_TYPE_FNPTR:
4989 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4991 case MONO_TYPE_VALUETYPE:
4992 g_assert (!klass->enumtype);
4993 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4995 case MONO_TYPE_GENERICINST:
4996 if (mono_type_generic_inst_is_valuetype (type)) {
4997 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4999 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5003 g_warning ("type %x not implemented", type->type);
5004 g_assert_not_reached ();
5007 mono_mb_emit_byte (mb, CEE_RET);
5009 res = mono_mb_create_and_cache (cache, klass,
5010 mb, sig, sig->param_count + 16);
5017 * mono_marshal_get_ldflda_wrapper:
5018 * @type: the type of the field
5020 * This method generates a function which can be used to load a field address
5021 * from an object. The generated function has the following signature:
5022 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5025 mono_marshal_get_ldflda_wrapper (MonoType *type)
5027 MonoMethodSignature *sig;
5028 MonoMethodBuilder *mb;
5033 int t, pos0, pos1, pos2, pos3;
5035 type = mono_type_get_underlying_type (type);
5039 if (type->type == MONO_TYPE_SZARRAY) {
5040 klass = mono_defaults.array_class;
5041 } else if (type->type == MONO_TYPE_VALUETYPE) {
5042 klass = type->data.klass;
5043 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5044 t == MONO_TYPE_CLASS) {
5045 klass = mono_defaults.object_class;
5046 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5047 klass = mono_defaults.int_class;
5048 } else if (t == MONO_TYPE_GENERICINST) {
5049 if (mono_type_generic_inst_is_valuetype (type))
5050 klass = mono_class_from_mono_type (type);
5052 klass = mono_defaults.object_class;
5054 klass = mono_class_from_mono_type (type);
5057 klass = mono_defaults.int_class;
5060 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5061 if ((res = mono_marshal_find_in_cache (cache, klass)))
5064 /* we add the %p pointer value of klass because class names are not unique */
5065 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5066 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5069 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5070 sig->params [0] = &mono_defaults.object_class->byval_arg;
5071 sig->params [1] = &mono_defaults.int_class->byval_arg;
5072 sig->params [2] = &mono_defaults.int_class->byval_arg;
5073 sig->params [3] = &mono_defaults.int_class->byval_arg;
5074 sig->ret = &mono_defaults.int_class->byval_arg;
5076 /* if typeof (this) != transparent_proxy goto pos0 */
5077 mono_mb_emit_ldarg (mb, 0);
5078 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5080 /* if same_appdomain goto pos1 */
5081 mono_mb_emit_ldarg (mb, 0);
5082 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5084 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5086 /* same app domain */
5087 mono_mb_patch_branch (mb, pos1);
5089 /* if typeof (this) != contextbound goto pos2 */
5090 mono_mb_emit_ldarg (mb, 0);
5091 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5093 /* if this->rp->context == mono_context_get goto pos3 */
5094 mono_mb_emit_ldarg (mb, 0);
5095 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5096 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5097 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5098 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5099 mono_mb_emit_icall (mb, mono_context_get);
5100 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5102 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5104 mono_mb_patch_branch (mb, pos2);
5105 mono_mb_patch_branch (mb, pos3);
5107 /* return the address of the field from this->rp->unwrapped_server */
5108 mono_mb_emit_ldarg (mb, 0);
5109 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5110 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5111 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5112 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5113 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5114 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5115 mono_mb_emit_ldarg (mb, 3);
5116 mono_mb_emit_byte (mb, CEE_ADD);
5117 mono_mb_emit_byte (mb, CEE_RET);
5119 /* not a proxy: return the address of the field directly */
5120 mono_mb_patch_branch (mb, pos0);
5122 mono_mb_emit_ldarg (mb, 0);
5123 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5124 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5125 mono_mb_emit_ldarg (mb, 3);
5126 mono_mb_emit_byte (mb, CEE_ADD);
5128 mono_mb_emit_byte (mb, CEE_RET);
5130 res = mono_mb_create_and_cache (cache, klass,
5131 mb, sig, sig->param_count + 16);
5138 * mono_marshal_get_stfld_remote_wrapper:
5139 * klass: The type of the field
5141 * This function generates a wrapper for calling mono_store_remote_field_new
5142 * with the appropriate signature.
5143 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5144 * klass argument anymore.
5147 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5149 MonoMethodSignature *sig, *csig;
5150 MonoMethodBuilder *mb;
5152 static MonoMethod *cached = NULL;
5154 mono_marshal_lock ();
5156 mono_marshal_unlock ();
5159 mono_marshal_unlock ();
5161 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5163 mb->method->save_lmf = 1;
5165 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5166 sig->params [0] = &mono_defaults.object_class->byval_arg;
5167 sig->params [1] = &mono_defaults.int_class->byval_arg;
5168 sig->params [2] = &mono_defaults.int_class->byval_arg;
5169 sig->params [3] = &mono_defaults.object_class->byval_arg;
5170 sig->ret = &mono_defaults.void_class->byval_arg;
5172 mono_mb_emit_ldarg (mb, 0);
5173 mono_mb_emit_ldarg (mb, 1);
5174 mono_mb_emit_ldarg (mb, 2);
5175 mono_mb_emit_ldarg (mb, 3);
5177 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5178 csig->params [0] = &mono_defaults.object_class->byval_arg;
5179 csig->params [1] = &mono_defaults.int_class->byval_arg;
5180 csig->params [2] = &mono_defaults.int_class->byval_arg;
5181 csig->params [3] = &mono_defaults.object_class->byval_arg;
5182 csig->ret = &mono_defaults.void_class->byval_arg;
5185 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5186 emit_thread_interrupt_checkpoint (mb);
5188 mono_mb_emit_byte (mb, CEE_RET);
5190 mono_marshal_lock ();
5192 mono_marshal_unlock ();
5195 newm = mono_mb_create_method (mb, sig, 6);
5196 mono_marshal_lock ();
5201 mono_marshal_unlock ();
5203 mono_marshal_unlock ();
5204 mono_free_method (newm);
5213 * mono_marshal_get_stfld_wrapper:
5214 * @type: the type of the field
5216 * This method generates a function which can be use to store a field with type
5217 * @type. The generated function has the following signature:
5218 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5221 mono_marshal_get_stfld_wrapper (MonoType *type)
5223 MonoMethodSignature *sig;
5224 MonoMethodBuilder *mb;
5231 type = mono_type_get_underlying_type (type);
5235 if (type->type == MONO_TYPE_SZARRAY) {
5236 klass = mono_defaults.array_class;
5237 } else if (type->type == MONO_TYPE_VALUETYPE) {
5238 klass = type->data.klass;
5239 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5240 klass = mono_defaults.object_class;
5241 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5242 klass = mono_defaults.int_class;
5243 } else if (t == MONO_TYPE_GENERICINST) {
5244 if (mono_type_generic_inst_is_valuetype (type))
5245 klass = mono_class_from_mono_type (type);
5247 klass = mono_defaults.object_class;
5249 klass = mono_class_from_mono_type (type);
5252 klass = mono_defaults.int_class;
5255 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5256 if ((res = mono_marshal_find_in_cache (cache, klass)))
5259 /* we add the %p pointer value of klass because class names are not unique */
5260 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5261 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5264 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5265 sig->params [0] = &mono_defaults.object_class->byval_arg;
5266 sig->params [1] = &mono_defaults.int_class->byval_arg;
5267 sig->params [2] = &mono_defaults.int_class->byval_arg;
5268 sig->params [3] = &mono_defaults.int_class->byval_arg;
5269 sig->params [4] = &klass->byval_arg;
5270 sig->ret = &mono_defaults.void_class->byval_arg;
5272 mono_mb_emit_ldarg (mb, 0);
5273 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5275 mono_mb_emit_ldarg (mb, 0);
5276 mono_mb_emit_ldarg (mb, 1);
5277 mono_mb_emit_ldarg (mb, 2);
5278 mono_mb_emit_ldarg (mb, 4);
5279 if (klass->valuetype)
5280 mono_mb_emit_op (mb, CEE_BOX, klass);
5282 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5284 mono_mb_emit_byte (mb, CEE_RET);
5286 mono_mb_patch_branch (mb, pos);
5288 mono_mb_emit_ldarg (mb, 0);
5289 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5290 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5291 mono_mb_emit_ldarg (mb, 3);
5292 mono_mb_emit_byte (mb, CEE_ADD);
5293 mono_mb_emit_ldarg (mb, 4);
5298 case MONO_TYPE_BOOLEAN:
5299 case MONO_TYPE_CHAR:
5308 case MONO_TYPE_ARRAY:
5309 case MONO_TYPE_SZARRAY:
5310 case MONO_TYPE_OBJECT:
5311 case MONO_TYPE_CLASS:
5312 case MONO_TYPE_STRING:
5316 case MONO_TYPE_FNPTR:
5317 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5319 case MONO_TYPE_VALUETYPE:
5320 g_assert (!klass->enumtype);
5321 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5323 case MONO_TYPE_GENERICINST:
5324 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5327 g_warning ("type %x not implemented", type->type);
5328 g_assert_not_reached ();
5331 mono_mb_emit_byte (mb, CEE_RET);
5333 res = mono_mb_create_and_cache (cache, klass,
5334 mb, sig, sig->param_count + 16);
5341 * generates IL code for the icall wrapper (the generated method
5342 * calls the unmanaged code in func)
5345 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5347 MonoMethodSignature *csig, *csig2;
5348 MonoMethodBuilder *mb;
5352 g_assert (sig->pinvoke);
5354 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5356 mb->method->save_lmf = 1;
5358 /* Add an explicit this argument */
5360 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5362 csig2 = signature_dup (mono_defaults.corlib, sig);
5365 mono_mb_emit_byte (mb, CEE_LDARG_0);
5367 for (i = 0; i < sig->param_count; i++)
5368 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5370 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5371 if (check_exceptions)
5372 emit_thread_interrupt_checkpoint (mb);
5373 mono_mb_emit_byte (mb, CEE_RET);
5375 csig = signature_dup (mono_defaults.corlib, sig);
5377 if (csig->call_convention == MONO_CALL_VARARG)
5378 csig->call_convention = 0;
5380 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5387 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5388 MonoMarshalSpec *spec,
5389 int conv_arg, MonoType **conv_arg_type,
5390 MarshalAction action)
5394 static MonoClass *ICustomMarshaler = NULL;
5395 static MonoMethod *cleanup_native, *cleanup_managed;
5396 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5397 MonoMethod *get_instance = NULL;
5398 MonoMethodBuilder *mb = m->mb;
5399 char *exception_msg = NULL;
5403 if (!ICustomMarshaler) {
5404 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5405 if (!ICustomMarshaler) {
5406 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5407 goto handle_exception;
5410 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5411 g_assert (cleanup_native);
5412 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5413 g_assert (cleanup_managed);
5414 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5415 g_assert (marshal_managed_to_native);
5416 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5417 g_assert (marshal_native_to_managed);
5420 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5421 g_assert (mtype != NULL);
5422 mklass = mono_class_from_mono_type (mtype);
5423 g_assert (mklass != NULL);
5425 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5426 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5428 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5430 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5431 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5432 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5433 (get_sig->params [0]->type != MONO_TYPE_STRING))
5434 get_instance = NULL;
5438 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement a static GetInstance method that takes a single string parameter and returns an ICustomMarshaler.", mklass->name);
5441 /* Throw exception and emit compensation code if neccesary */
5442 if (exception_msg) {
5444 case MARSHAL_ACTION_CONV_IN:
5445 case MARSHAL_ACTION_CONV_RESULT:
5446 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5447 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5448 mono_mb_emit_byte (mb, CEE_POP);
5450 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5451 g_free (exception_msg);
5454 case MARSHAL_ACTION_PUSH:
5455 mono_mb_emit_byte (mb, CEE_LDNULL);
5463 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5464 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5467 case MARSHAL_ACTION_CONV_IN:
5469 case MONO_TYPE_CLASS:
5470 case MONO_TYPE_OBJECT:
5471 case MONO_TYPE_STRING:
5472 case MONO_TYPE_ARRAY:
5473 case MONO_TYPE_SZARRAY:
5474 case MONO_TYPE_VALUETYPE:
5478 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5479 g_assert_not_reached ();
5483 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5485 mono_mb_emit_byte (mb, CEE_LDNULL);
5486 mono_mb_emit_stloc (mb, conv_arg);
5488 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5491 /* Minic MS.NET behavior */
5492 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5495 /* Check for null */
5496 mono_mb_emit_ldarg (mb, argnum);
5498 mono_mb_emit_byte (mb, CEE_LDIND_I);
5499 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5501 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5503 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5505 mono_mb_emit_ldarg (mb, argnum);
5507 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5509 if (t->type == MONO_TYPE_VALUETYPE) {
5511 * Since we can't determine the type of the argument, we
5512 * will assume the unmanaged function takes a pointer.
5514 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5516 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5519 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5520 mono_mb_emit_stloc (mb, conv_arg);
5522 mono_mb_patch_branch (mb, pos2);
5525 case MARSHAL_ACTION_CONV_OUT:
5526 /* Check for null */
5527 mono_mb_emit_ldloc (mb, conv_arg);
5528 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5531 mono_mb_emit_ldarg (mb, argnum);
5533 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5535 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5537 mono_mb_emit_ldloc (mb, conv_arg);
5538 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5539 mono_mb_emit_byte (mb, CEE_STIND_REF);
5540 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5541 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5543 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5545 mono_mb_emit_ldloc (mb, conv_arg);
5546 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5548 /* We have nowhere to store the result */
5549 mono_mb_emit_byte (mb, CEE_POP);
5552 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5554 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5556 mono_mb_emit_ldloc (mb, conv_arg);
5558 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5560 mono_mb_patch_branch (mb, pos2);
5563 case MARSHAL_ACTION_PUSH:
5565 mono_mb_emit_ldloc_addr (mb, conv_arg);
5567 mono_mb_emit_ldloc (mb, conv_arg);
5570 case MARSHAL_ACTION_CONV_RESULT:
5571 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5573 mono_mb_emit_stloc (mb, 3);
5575 mono_mb_emit_ldloc (mb, 3);
5576 mono_mb_emit_stloc (mb, loc1);
5578 /* Check for null */
5579 mono_mb_emit_ldloc (mb, 3);
5580 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5582 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5584 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5585 mono_mb_emit_byte (mb, CEE_DUP);
5587 mono_mb_emit_ldloc (mb, 3);
5588 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5589 mono_mb_emit_stloc (mb, 3);
5591 mono_mb_emit_ldloc (mb, loc1);
5592 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5594 mono_mb_patch_branch (mb, pos2);
5597 case MARSHAL_ACTION_MANAGED_CONV_IN:
5598 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5600 mono_mb_emit_byte (mb, CEE_LDNULL);
5601 mono_mb_emit_stloc (mb, conv_arg);
5603 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5606 /* Check for null */
5607 mono_mb_emit_ldarg (mb, argnum);
5609 mono_mb_emit_byte (mb, CEE_LDIND_I);
5610 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5612 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5613 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5615 mono_mb_emit_ldarg (mb, argnum);
5617 mono_mb_emit_byte (mb, CEE_LDIND_I);
5619 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5620 mono_mb_emit_stloc (mb, conv_arg);
5622 mono_mb_patch_branch (mb, pos2);
5625 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5626 g_assert (!t->byref);
5628 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5630 mono_mb_emit_stloc (mb, 3);
5632 mono_mb_emit_ldloc (mb, 3);
5633 mono_mb_emit_stloc (mb, loc1);
5635 /* Check for null */
5636 mono_mb_emit_ldloc (mb, 3);
5637 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5639 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5640 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5641 mono_mb_emit_byte (mb, CEE_DUP);
5643 mono_mb_emit_ldloc (mb, 3);
5644 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5645 mono_mb_emit_stloc (mb, 3);
5647 mono_mb_emit_ldloc (mb, loc1);
5648 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5650 mono_mb_patch_branch (mb, pos2);
5653 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5655 /* Check for null */
5656 mono_mb_emit_ldloc (mb, conv_arg);
5657 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5660 mono_mb_emit_ldarg (mb, argnum);
5662 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5664 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5666 mono_mb_emit_ldloc (mb, conv_arg);
5667 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5668 mono_mb_emit_byte (mb, CEE_STIND_I);
5671 /* Call CleanUpManagedData */
5672 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5674 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5676 mono_mb_emit_ldloc (mb, conv_arg);
5677 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5679 mono_mb_patch_branch (mb, pos2);
5683 g_assert_not_reached ();
5690 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5691 MonoMarshalSpec *spec,
5692 int conv_arg, MonoType **conv_arg_type,
5693 MarshalAction action)
5695 MonoMethodBuilder *mb = m->mb;
5698 case MARSHAL_ACTION_CONV_IN: {
5699 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5701 g_assert (t->type == MONO_TYPE_OBJECT);
5702 g_assert (!t->byref);
5704 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5705 mono_mb_emit_ldarg (mb, argnum);
5706 mono_mb_emit_icon (mb, encoding);
5707 mono_mb_emit_icon (mb, t->attrs);
5708 mono_mb_emit_icall (mb, mono_marshal_asany);
5709 mono_mb_emit_stloc (mb, conv_arg);
5713 case MARSHAL_ACTION_PUSH:
5714 mono_mb_emit_ldloc (mb, conv_arg);
5717 case MARSHAL_ACTION_CONV_OUT: {
5718 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5720 mono_mb_emit_ldarg (mb, argnum);
5721 mono_mb_emit_ldloc (mb, conv_arg);
5722 mono_mb_emit_icon (mb, encoding);
5723 mono_mb_emit_icon (mb, t->attrs);
5724 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5729 g_assert_not_reached ();
5736 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5737 MonoMarshalSpec *spec,
5738 int conv_arg, MonoType **conv_arg_type,
5739 MarshalAction action)
5741 MonoMethodBuilder *mb = m->mb;
5742 MonoClass *klass, *date_time_class;
5745 klass = mono_class_from_mono_type (t);
5747 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5750 case MARSHAL_ACTION_CONV_IN:
5751 if (klass == date_time_class) {
5752 /* Convert it to an OLE DATE type */
5753 static MonoMethod *to_oadate;
5756 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5757 g_assert (to_oadate);
5759 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5762 mono_mb_emit_ldarg (mb, argnum);
5763 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5766 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5768 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5770 mono_mb_emit_ldarg_addr (mb, argnum);
5771 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5772 mono_mb_emit_stloc (mb, conv_arg);
5776 mono_mb_patch_branch (mb, pos);
5780 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5781 klass->blittable || klass->enumtype)
5784 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5786 /* store the address of the source into local variable 0 */
5788 mono_mb_emit_ldarg (mb, argnum);
5790 mono_mb_emit_ldarg_addr (mb, argnum);
5792 mono_mb_emit_stloc (mb, 0);
5794 /* allocate space for the native struct and
5795 * store the address into local variable 1 (dest) */
5796 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5797 mono_mb_emit_byte (mb, CEE_PREFIX1);
5798 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5799 mono_mb_emit_stloc (mb, conv_arg);
5802 mono_mb_emit_ldloc (mb, 0);
5803 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5806 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5808 mono_mb_emit_ldloc (mb, conv_arg);
5809 mono_mb_emit_stloc (mb, 1);
5811 /* emit valuetype conversion code */
5812 emit_struct_conv (mb, klass, FALSE);
5816 mono_mb_patch_branch (mb, pos);
5819 case MARSHAL_ACTION_PUSH:
5820 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5822 g_assert (!t->byref);
5824 /* Have to change the signature since the vtype is passed byref */
5825 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5827 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5828 klass->blittable || klass->enumtype)
5829 mono_mb_emit_ldarg_addr (mb, argnum);
5831 mono_mb_emit_ldloc (mb, conv_arg);
5835 if (klass == date_time_class) {
5837 mono_mb_emit_ldloc_addr (mb, conv_arg);
5839 mono_mb_emit_ldloc (mb, conv_arg);
5843 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5844 klass->blittable || klass->enumtype) {
5845 mono_mb_emit_ldarg (mb, argnum);
5848 mono_mb_emit_ldloc (mb, conv_arg);
5850 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5851 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5855 case MARSHAL_ACTION_CONV_OUT:
5856 if (klass == date_time_class) {
5857 /* Convert from an OLE DATE type */
5858 static MonoMethod *from_oadate;
5863 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5865 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5866 g_assert (from_oadate);
5868 mono_mb_emit_ldarg (mb, argnum);
5869 mono_mb_emit_ldloc (mb, conv_arg);
5870 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5871 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5876 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5877 klass->blittable || klass->enumtype)
5881 /* dst = argument */
5882 mono_mb_emit_ldarg (mb, argnum);
5883 mono_mb_emit_stloc (mb, 1);
5885 mono_mb_emit_ldloc (mb, 1);
5886 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5888 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5889 /* src = tmp_locals [i] */
5890 mono_mb_emit_ldloc (mb, conv_arg);
5891 mono_mb_emit_stloc (mb, 0);
5893 /* emit valuetype conversion code */
5894 emit_struct_conv (mb, klass, TRUE);
5898 emit_struct_free (mb, klass, conv_arg);
5901 mono_mb_patch_branch (mb, pos);
5904 case MARSHAL_ACTION_CONV_RESULT:
5905 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5907 mono_mb_emit_stloc (mb, 3);
5911 /* load pointer to returned value type */
5912 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5913 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5914 /* store the address of the source into local variable 0 */
5915 mono_mb_emit_stloc (mb, 0);
5917 mono_mb_emit_ldloc_addr (mb, 3);
5918 mono_mb_emit_stloc (mb, 1);
5920 /* emit valuetype conversion code */
5921 emit_struct_conv (mb, klass, TRUE);
5924 case MARSHAL_ACTION_MANAGED_CONV_IN:
5925 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5926 klass->blittable || klass->enumtype) {
5931 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5933 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5937 mono_mb_emit_ldarg (mb, argnum);
5939 mono_mb_emit_ldarg_addr (mb, argnum);
5940 mono_mb_emit_stloc (mb, 0);
5943 mono_mb_emit_ldloc (mb, 0);
5944 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5947 mono_mb_emit_ldloc_addr (mb, conv_arg);
5948 mono_mb_emit_stloc (mb, 1);
5950 /* emit valuetype conversion code */
5951 emit_struct_conv (mb, klass, TRUE);
5954 mono_mb_patch_branch (mb, pos);
5957 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5958 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5959 klass->blittable || klass->enumtype) {
5963 /* Check for null */
5964 mono_mb_emit_ldarg (mb, argnum);
5965 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5968 mono_mb_emit_ldloc_addr (mb, conv_arg);
5969 mono_mb_emit_stloc (mb, 0);
5972 mono_mb_emit_ldarg (mb, argnum);
5973 mono_mb_emit_stloc (mb, 1);
5975 /* emit valuetype conversion code */
5976 emit_struct_conv (mb, klass, FALSE);
5978 mono_mb_patch_branch (mb, pos2);
5981 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5982 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5983 klass->blittable || klass->enumtype) {
5984 mono_mb_emit_stloc (mb, 3);
5989 /* load pointer to returned value type */
5990 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5991 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5993 /* store the address of the source into local variable 0 */
5994 mono_mb_emit_stloc (mb, 0);
5995 /* allocate space for the native struct and
5996 * store the address into dst_ptr */
5997 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5998 m->retobj_class = klass;
5999 g_assert (m->retobj_var);
6000 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6001 mono_mb_emit_byte (mb, CEE_CONV_I);
6002 mono_mb_emit_icall (mb, mono_marshal_alloc);
6003 mono_mb_emit_stloc (mb, 1);
6004 mono_mb_emit_ldloc (mb, 1);
6005 mono_mb_emit_stloc (mb, m->retobj_var);
6007 /* emit valuetype conversion code */
6008 emit_struct_conv (mb, klass, FALSE);
6012 g_assert_not_reached ();
6019 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6020 MonoMarshalSpec *spec,
6021 int conv_arg, MonoType **conv_arg_type,
6022 MarshalAction action)
6024 MonoMethodBuilder *mb = m->mb;
6025 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6026 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6030 case MARSHAL_ACTION_CONV_IN:
6031 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6032 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6035 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6038 mono_mb_emit_ldarg (mb, argnum);
6039 mono_mb_emit_byte (mb, CEE_LDIND_I);
6041 mono_mb_emit_ldarg (mb, argnum);
6045 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6046 MonoException *exc = mono_get_exception_not_implemented (msg);
6047 g_warning ("%s", msg);
6049 mono_raise_exception (exc);
6052 mono_mb_emit_icall (mb, conv_to_icall (conv));
6054 mono_mb_emit_stloc (mb, conv_arg);
6057 case MARSHAL_ACTION_CONV_OUT:
6058 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6060 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6061 mono_mb_emit_exception_marshal_directive (mb, msg);
6065 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6066 static MonoMethod *m;
6069 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6074 * Have to allocate a new string with the same length as the original, and
6075 * copy the contents of the buffer pointed to by CONV_ARG into it.
6077 g_assert (t->byref);
6078 mono_mb_emit_ldarg (mb, argnum);
6079 mono_mb_emit_ldloc (mb, conv_arg);
6080 mono_mb_emit_ldarg (mb, argnum);
6081 mono_mb_emit_byte (mb, CEE_LDIND_I);
6082 mono_mb_emit_managed_call (mb, m, NULL);
6083 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
6084 mono_mb_emit_byte (mb, CEE_STIND_REF);
6085 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6086 mono_mb_emit_ldarg (mb, argnum);
6087 mono_mb_emit_ldloc (mb, conv_arg);
6088 mono_mb_emit_icall (mb, conv_to_icall (conv));
6089 mono_mb_emit_byte (mb, CEE_STIND_REF);
6092 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6093 mono_mb_emit_ldloc (mb, conv_arg);
6094 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6095 mono_mb_emit_icall (mb, mono_free_bstr);
6097 mono_mb_emit_icall (mb, mono_marshal_free);
6101 case MARSHAL_ACTION_PUSH:
6102 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
6103 mono_mb_emit_ldloc_addr (mb, conv_arg);
6105 mono_mb_emit_ldloc (mb, conv_arg);
6108 case MARSHAL_ACTION_CONV_RESULT:
6109 mono_mb_emit_stloc (mb, 0);
6111 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6113 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6114 mono_mb_emit_exception_marshal_directive (mb, msg);
6118 mono_mb_emit_ldloc (mb, 0);
6119 mono_mb_emit_icall (mb, conv_to_icall (conv));
6120 mono_mb_emit_stloc (mb, 3);
6122 /* free the string */
6123 mono_mb_emit_ldloc (mb, 0);
6124 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6125 mono_mb_emit_icall (mb, mono_free_bstr);
6127 mono_mb_emit_icall (mb, mono_marshal_free);
6130 case MARSHAL_ACTION_MANAGED_CONV_IN:
6131 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6133 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6135 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6137 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6138 mono_mb_emit_exception_marshal_directive (mb, msg);
6142 mono_mb_emit_ldarg (mb, argnum);
6144 mono_mb_emit_byte (mb, CEE_LDIND_I);
6145 mono_mb_emit_icall (mb, conv_to_icall (conv));
6146 mono_mb_emit_stloc (mb, conv_arg);
6149 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6152 mono_mb_emit_ldarg (mb, argnum);
6153 mono_mb_emit_ldloc (mb, conv_arg);
6154 mono_mb_emit_icall (mb, conv_to_icall (conv));
6155 mono_mb_emit_byte (mb, CEE_STIND_I);
6160 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6161 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6162 /* We need to make a copy so the caller is able to free it */
6163 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6165 mono_mb_emit_icall (mb, conv_to_icall (conv));
6166 mono_mb_emit_stloc (mb, 3);
6170 g_assert_not_reached ();
6177 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6178 MonoMarshalSpec *spec, int conv_arg,
6179 MonoType **conv_arg_type, MarshalAction action)
6181 MonoMethodBuilder *mb = m->mb;
6184 case MARSHAL_ACTION_CONV_IN: {
6185 MonoType *intptr_type;
6186 int dar_release_slot, pos;
6188 intptr_type = &mono_defaults.int_class->byval_arg;
6189 conv_arg = mono_mb_add_local (mb, intptr_type);
6190 *conv_arg_type = intptr_type;
6192 if (!sh_dangerous_add_ref)
6193 init_safe_handle ();
6195 mono_mb_emit_ldarg (mb, argnum);
6196 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6197 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6199 mono_mb_patch_branch (mb, pos);
6202 * My tests in show that ref SafeHandles are not really
6203 * passed as ref objects. Instead a NULL is passed as the
6206 mono_mb_emit_icon (mb, 0);
6207 mono_mb_emit_stloc (mb, conv_arg);
6211 /* Create local to hold the ref parameter to DangerousAddRef */
6212 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6214 /* set release = false; */
6215 mono_mb_emit_icon (mb, 0);
6216 mono_mb_emit_stloc (mb, dar_release_slot);
6218 /* safehandle.DangerousAddRef (ref release) */
6219 mono_mb_emit_ldarg (mb, argnum);
6220 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6221 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6223 /* Pull the handle field from SafeHandle */
6224 mono_mb_emit_ldarg (mb, argnum);
6225 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6226 mono_mb_emit_byte (mb, CEE_LDIND_I);
6227 mono_mb_emit_stloc (mb, conv_arg);
6232 case MARSHAL_ACTION_PUSH:
6234 mono_mb_emit_ldloc_addr (mb, conv_arg);
6236 mono_mb_emit_ldloc (mb, conv_arg);
6239 case MARSHAL_ACTION_CONV_OUT: {
6240 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6241 int dar_release_slot = conv_arg + 1;
6244 if (!sh_dangerous_release)
6245 init_safe_handle ();
6251 * My tests indicate that ref SafeHandles parameters are not actually
6252 * passed by ref, but instead a new Handle is created regardless of
6253 * whether a change happens in the unmanaged side.
6255 * Also, the Handle is created before calling into unmanaged code,
6256 * but we do not support that mechanism (getting to the original
6257 * handle) and it makes no difference where we create this
6259 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6261 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6264 /* refval = new SafeHandleDerived ()*/
6265 mono_mb_emit_ldarg (mb, argnum);
6266 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6267 mono_mb_emit_byte (mb, CEE_STIND_REF);
6269 /* refval.handle = returned_handle */
6270 mono_mb_emit_ldarg (mb, argnum);
6271 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6272 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6273 mono_mb_emit_ldloc (mb, conv_arg);
6274 mono_mb_emit_byte (mb, CEE_STIND_I);
6276 mono_mb_emit_ldloc (mb, dar_release_slot);
6277 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6278 mono_mb_emit_ldarg (mb, argnum);
6279 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6280 mono_mb_patch_branch (mb, label_next);
6285 case MARSHAL_ACTION_CONV_RESULT: {
6286 MonoMethod *ctor = NULL;
6287 int intptr_handle_slot;
6289 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6290 mono_mb_emit_byte (mb, CEE_POP);
6291 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
6295 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6297 mono_mb_emit_byte (mb, CEE_POP);
6298 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6301 /* Store the IntPtr results into a local */
6302 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6303 mono_mb_emit_stloc (mb, intptr_handle_slot);
6305 /* Create return value */
6306 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6307 mono_mb_emit_stloc (mb, 3);
6309 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6310 mono_mb_emit_ldloc (mb, 3);
6311 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6312 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6313 mono_mb_emit_byte (mb, CEE_STIND_I);
6317 case MARSHAL_ACTION_MANAGED_CONV_IN:
6318 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6321 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6322 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6325 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6326 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6329 printf ("Unhandled case for MarshalAction: %d\n", action);
6336 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6337 MonoMarshalSpec *spec, int conv_arg,
6338 MonoType **conv_arg_type, MarshalAction action)
6340 MonoMethodBuilder *mb = m->mb;
6343 case MARSHAL_ACTION_CONV_IN: {
6344 MonoType *intptr_type;
6346 intptr_type = &mono_defaults.int_class->byval_arg;
6347 conv_arg = mono_mb_add_local (mb, intptr_type);
6348 *conv_arg_type = intptr_type;
6351 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6352 mono_mb_emit_exception_marshal_directive (mb, msg);
6355 mono_mb_emit_ldarg_addr (mb, argnum);
6356 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6357 mono_mb_emit_byte (mb, CEE_ADD);
6358 mono_mb_emit_byte (mb, CEE_LDIND_I);
6359 mono_mb_emit_stloc (mb, conv_arg);
6363 case MARSHAL_ACTION_PUSH:
6364 mono_mb_emit_ldloc (mb, conv_arg);
6367 case MARSHAL_ACTION_CONV_OUT: {
6368 /* no resource release required */
6372 case MARSHAL_ACTION_CONV_RESULT: {
6373 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6374 mono_mb_emit_exception_marshal_directive (mb, msg);
6378 case MARSHAL_ACTION_MANAGED_CONV_IN:
6379 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6382 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6383 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6386 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6387 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6390 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6397 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6398 MonoMarshalSpec *spec,
6399 int conv_arg, MonoType **conv_arg_type,
6400 MarshalAction action)
6402 MonoMethodBuilder *mb = m->mb;
6403 MonoClass *klass = mono_class_from_mono_type (t);
6407 case MARSHAL_ACTION_CONV_IN:
6408 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6409 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6411 m->orig_conv_args [argnum] = 0;
6413 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6414 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6415 mono_mb_emit_exception_marshal_directive (mb, msg);
6419 if (klass->delegate) {
6421 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6422 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6423 mono_mb_emit_exception_marshal_directive (mb, msg);
6425 mono_mb_emit_byte (mb, CEE_LDNULL);
6426 mono_mb_emit_stloc (mb, conv_arg);
6428 mono_mb_emit_ldarg (mb, argnum);
6429 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6430 mono_mb_emit_stloc (mb, conv_arg);
6432 } else if (klass == mono_defaults.stringbuilder_class) {
6433 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6434 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6437 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6438 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6439 mono_mb_emit_exception_marshal_directive (mb, msg);
6444 mono_mb_emit_ldarg (mb, argnum);
6447 mono_mb_emit_icall (mb, conv_to_icall (conv));
6449 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6450 MonoException *exc = mono_get_exception_not_implemented (msg);
6451 g_warning ("%s", msg);
6453 mono_raise_exception (exc);
6456 mono_mb_emit_stloc (mb, conv_arg);
6457 } else if (klass->blittable) {
6458 mono_mb_emit_byte (mb, CEE_LDNULL);
6459 mono_mb_emit_stloc (mb, conv_arg);
6461 mono_mb_emit_ldarg (mb, argnum);
6462 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6464 mono_mb_emit_ldarg (mb, argnum);
6465 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6466 mono_mb_emit_stloc (mb, conv_arg);
6468 mono_mb_patch_branch (mb, pos);
6471 mono_mb_emit_byte (mb, CEE_LDNULL);
6472 mono_mb_emit_stloc (mb, conv_arg);
6475 /* we dont need any conversions for out parameters */
6476 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6479 mono_mb_emit_ldarg (mb, argnum);
6480 mono_mb_emit_byte (mb, CEE_LDIND_I);
6483 mono_mb_emit_ldarg (mb, argnum);
6484 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6485 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6488 /* store the address of the source into local variable 0 */
6489 mono_mb_emit_stloc (mb, 0);
6490 mono_mb_emit_ldloc (mb, 0);
6491 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6493 /* allocate space for the native struct and store the address */
6494 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6495 mono_mb_emit_byte (mb, CEE_PREFIX1);
6496 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6497 mono_mb_emit_stloc (mb, conv_arg);
6500 /* Need to store the original buffer so we can free it later */
6501 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6502 mono_mb_emit_ldloc (mb, conv_arg);
6503 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6506 /* set the src_ptr */
6507 mono_mb_emit_ldloc (mb, 0);
6508 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6509 mono_mb_emit_stloc (mb, 0);
6512 mono_mb_emit_ldloc (mb, conv_arg);
6513 mono_mb_emit_stloc (mb, 1);
6515 /* emit valuetype conversion code */
6516 emit_struct_conv (mb, klass, FALSE);
6518 mono_mb_patch_branch (mb, pos);
6522 case MARSHAL_ACTION_CONV_OUT:
6523 if (klass == mono_defaults.stringbuilder_class) {
6525 MonoMarshalNative encoding;
6526 MonoMarshalConv conv;
6528 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6529 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6531 g_assert (encoding != -1);
6534 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6538 mono_mb_emit_ldarg (mb, argnum);
6539 mono_mb_emit_ldloc (mb, conv_arg);
6542 case MONO_NATIVE_LPWSTR:
6543 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6545 case MONO_NATIVE_LPSTR:
6546 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6549 g_assert_not_reached ();
6552 mono_mb_emit_byte (mb, CEE_STIND_REF);
6554 mono_mb_emit_ldarg (mb, argnum);
6555 mono_mb_emit_ldloc (mb, conv_arg);
6557 mono_mb_emit_icall (mb, conv_to_icall (conv));
6561 mono_mb_emit_ldloc (mb, conv_arg);
6562 mono_mb_emit_icall (mb, mono_marshal_free);
6567 if (klass->delegate) {
6569 mono_mb_emit_ldarg (mb, argnum);
6570 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6571 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6572 mono_mb_emit_ldloc (mb, conv_arg);
6573 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6574 mono_mb_emit_byte (mb, CEE_STIND_REF);
6579 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6580 /* allocate a new object */
6581 mono_mb_emit_ldarg (mb, argnum);
6582 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6583 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6584 mono_mb_emit_byte (mb, CEE_STIND_REF);
6587 /* dst = *argument */
6588 mono_mb_emit_ldarg (mb, argnum);
6591 mono_mb_emit_byte (mb, CEE_LDIND_I);
6593 mono_mb_emit_stloc (mb, 1);
6595 mono_mb_emit_ldloc (mb, 1);
6596 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6598 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6599 mono_mb_emit_ldloc (mb, 1);
6600 mono_mb_emit_icon (mb, sizeof (MonoObject));
6601 mono_mb_emit_byte (mb, CEE_ADD);
6602 mono_mb_emit_stloc (mb, 1);
6604 /* src = tmp_locals [i] */
6605 mono_mb_emit_ldloc (mb, conv_arg);
6606 mono_mb_emit_stloc (mb, 0);
6608 /* emit valuetype conversion code */
6609 emit_struct_conv (mb, klass, TRUE);
6611 /* Free the structure returned by the native code */
6612 emit_struct_free (mb, klass, conv_arg);
6614 if (m->orig_conv_args [argnum]) {
6616 * If the native function changed the pointer, then free
6617 * the original structure plus the new pointer.
6619 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6620 mono_mb_emit_ldloc (mb, conv_arg);
6621 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6623 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6624 g_assert (m->orig_conv_args [argnum]);
6626 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6629 mono_mb_emit_ldloc (mb, conv_arg);
6630 mono_mb_emit_icall (mb, mono_marshal_free);
6632 mono_mb_patch_branch (mb, pos2);
6636 /* Free the original structure passed to native code */
6637 emit_struct_free (mb, klass, conv_arg);
6639 mono_mb_patch_branch (mb, pos);
6642 case MARSHAL_ACTION_PUSH:
6644 mono_mb_emit_ldloc_addr (mb, conv_arg);
6646 mono_mb_emit_ldloc (mb, conv_arg);
6649 case MARSHAL_ACTION_CONV_RESULT:
6650 if (klass->delegate) {
6651 g_assert (!t->byref);
6652 mono_mb_emit_stloc (mb, 0);
6653 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6654 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6655 mono_mb_emit_ldloc (mb, 0);
6656 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6657 mono_mb_emit_stloc (mb, 3);
6660 mono_mb_emit_stloc (mb, 0);
6662 /* Make a copy since emit_conv modifies local 0 */
6663 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6664 mono_mb_emit_ldloc (mb, 0);
6665 mono_mb_emit_stloc (mb, loc);
6667 mono_mb_emit_byte (mb, CEE_LDNULL);
6668 mono_mb_emit_stloc (mb, 3);
6670 mono_mb_emit_ldloc (mb, 0);
6671 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6673 /* allocate result object */
6675 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6676 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6677 mono_mb_emit_stloc (mb, 3);
6681 mono_mb_emit_ldloc (mb, 3);
6682 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6683 mono_mb_emit_stloc (mb, 1);
6685 /* emit conversion code */
6686 emit_struct_conv (mb, klass, TRUE);
6688 emit_struct_free (mb, klass, loc);
6690 /* Free the pointer allocated by unmanaged code */
6691 mono_mb_emit_ldloc (mb, loc);
6692 mono_mb_emit_icall (mb, mono_marshal_free);
6693 mono_mb_patch_branch (mb, pos);
6697 case MARSHAL_ACTION_MANAGED_CONV_IN:
6698 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6700 if (klass->delegate) {
6701 g_assert (!t->byref);
6702 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6703 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6704 mono_mb_emit_ldarg (mb, argnum);
6705 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6706 mono_mb_emit_stloc (mb, conv_arg);
6710 if (klass == mono_defaults.stringbuilder_class) {
6711 MonoMarshalNative encoding;
6713 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6716 g_assert (encoding == MONO_NATIVE_LPSTR);
6718 g_assert (!t->byref);
6719 g_assert (encoding != -1);
6721 mono_mb_emit_ldarg (mb, argnum);
6722 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6723 mono_mb_emit_stloc (mb, conv_arg);
6727 /* The class can not have an automatic layout */
6728 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6729 mono_mb_emit_auto_layout_exception (mb, klass);
6733 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6734 mono_mb_emit_byte (mb, CEE_LDNULL);
6735 mono_mb_emit_stloc (mb, conv_arg);
6740 mono_mb_emit_ldarg (mb, argnum);
6744 /* Check for NULL and raise an exception */
6745 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6747 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6749 mono_mb_patch_branch (mb, pos2);
6750 mono_mb_emit_ldarg (mb, argnum);
6751 mono_mb_emit_byte (mb, CEE_LDIND_I);
6754 mono_mb_emit_stloc (mb, 0);
6756 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6757 mono_mb_emit_stloc (mb, conv_arg);
6759 mono_mb_emit_ldloc (mb, 0);
6760 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6762 /* Create and set dst */
6763 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6764 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6765 mono_mb_emit_stloc (mb, conv_arg);
6766 mono_mb_emit_ldloc (mb, conv_arg);
6767 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6768 mono_mb_emit_stloc (mb, 1);
6770 /* emit valuetype conversion code */
6771 emit_struct_conv (mb, klass, TRUE);
6773 mono_mb_patch_branch (mb, pos);
6776 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6778 /* Check for null */
6779 mono_mb_emit_ldloc (mb, conv_arg);
6780 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6781 mono_mb_emit_ldarg (mb, argnum);
6782 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6783 mono_mb_emit_byte (mb, CEE_STIND_REF);
6784 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6786 mono_mb_patch_branch (mb, pos);
6789 mono_mb_emit_ldloc (mb, conv_arg);
6790 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6791 mono_mb_emit_stloc (mb, 0);
6793 /* Allocate and set dest */
6794 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6795 mono_mb_emit_byte (mb, CEE_CONV_I);
6796 mono_mb_emit_icall (mb, mono_marshal_alloc);
6797 mono_mb_emit_stloc (mb, 1);
6799 /* Update argument pointer */
6800 mono_mb_emit_ldarg (mb, argnum);
6801 mono_mb_emit_ldloc (mb, 1);
6802 mono_mb_emit_byte (mb, CEE_STIND_I);
6804 /* emit valuetype conversion code */
6805 emit_struct_conv (mb, klass, FALSE);
6807 mono_mb_patch_branch (mb, pos2);
6809 /* byval [Out] marshalling */
6811 /* FIXME: Handle null */
6814 mono_mb_emit_ldloc (mb, conv_arg);
6815 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6816 mono_mb_emit_stloc (mb, 0);
6819 mono_mb_emit_ldarg (mb, argnum);
6820 mono_mb_emit_stloc (mb, 1);
6822 /* emit valuetype conversion code */
6823 emit_struct_conv (mb, klass, FALSE);
6827 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6828 if (klass->delegate) {
6829 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6830 mono_mb_emit_stloc (mb, 3);
6834 /* The class can not have an automatic layout */
6835 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6836 mono_mb_emit_auto_layout_exception (mb, klass);
6840 mono_mb_emit_stloc (mb, 0);
6841 /* Check for null */
6842 mono_mb_emit_ldloc (mb, 0);
6843 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6844 mono_mb_emit_byte (mb, CEE_LDNULL);
6845 mono_mb_emit_stloc (mb, 3);
6846 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6848 mono_mb_patch_branch (mb, pos);
6851 mono_mb_emit_ldloc (mb, 0);
6852 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6853 mono_mb_emit_stloc (mb, 0);
6855 /* Allocate and set dest */
6856 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6857 mono_mb_emit_byte (mb, CEE_CONV_I);
6858 mono_mb_emit_icall (mb, mono_marshal_alloc);
6859 mono_mb_emit_byte (mb, CEE_DUP);
6860 mono_mb_emit_stloc (mb, 1);
6861 mono_mb_emit_stloc (mb, 3);
6863 emit_struct_conv (mb, klass, FALSE);
6865 mono_mb_patch_branch (mb, pos2);
6869 g_assert_not_reached ();
6876 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6877 MonoMarshalSpec *spec,
6878 int conv_arg, MonoType **conv_arg_type,
6879 MarshalAction action)
6881 MonoMethodBuilder *mb = m->mb;
6882 static MonoMethod *get_object_for_native_variant = NULL;
6883 static MonoMethod *get_native_variant_for_object = NULL;
6885 mono_init_com_types ();
6887 if (!get_object_for_native_variant)
6888 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6889 g_assert (get_object_for_native_variant);
6891 if (!get_native_variant_for_object)
6892 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6893 g_assert (get_native_variant_for_object);
6896 case MARSHAL_ACTION_CONV_IN: {
6897 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6900 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6902 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6904 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6907 mono_mb_emit_ldarg (mb, argnum);
6909 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6910 mono_mb_emit_ldloc_addr (mb, conv_arg);
6911 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6915 case MARSHAL_ACTION_CONV_OUT: {
6916 static MonoMethod *variant_clear = NULL;
6919 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6920 g_assert (variant_clear);
6923 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6924 mono_mb_emit_ldarg (mb, argnum);
6925 mono_mb_emit_ldloc_addr (mb, conv_arg);
6926 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6927 mono_mb_emit_byte (mb, CEE_STIND_REF);
6930 mono_mb_emit_ldloc_addr (mb, conv_arg);
6931 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6935 case MARSHAL_ACTION_PUSH:
6937 mono_mb_emit_ldloc_addr (mb, conv_arg);
6939 mono_mb_emit_ldloc (mb, conv_arg);
6942 case MARSHAL_ACTION_CONV_RESULT: {
6943 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6944 mono_mb_emit_exception_marshal_directive (mb, msg);
6948 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6949 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6952 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6954 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6956 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6960 mono_mb_emit_ldarg (mb, argnum);
6962 mono_mb_emit_ldarg_addr (mb, argnum);
6963 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6964 mono_mb_emit_stloc (mb, conv_arg);
6968 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6969 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6970 mono_mb_emit_ldloc (mb, conv_arg);
6971 mono_mb_emit_ldarg (mb, argnum);
6972 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6977 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6978 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6979 mono_mb_emit_exception_marshal_directive (mb, msg);
6984 g_assert_not_reached ();
6991 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6993 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6994 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6996 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6998 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7009 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7010 MonoMarshalSpec *spec,
7011 int conv_arg, MonoType **conv_arg_type,
7012 MarshalAction action)
7014 MonoMethodBuilder *mb = m->mb;
7015 MonoClass *klass = mono_class_from_mono_type (t);
7016 gboolean need_convert, need_free;
7017 MonoMarshalNative encoding;
7019 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7022 case MARSHAL_ACTION_CONV_IN:
7023 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7024 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7026 if (klass->element_class->blittable) {
7027 mono_mb_emit_ldarg (mb, argnum);
7029 mono_mb_emit_byte (mb, CEE_LDIND_I);
7030 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7031 mono_mb_emit_stloc (mb, conv_arg);
7034 guint32 label1, label2, label3;
7035 int index_var, src_var, dest_ptr, esize;
7036 MonoMarshalConv conv;
7037 gboolean is_string = FALSE;
7039 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7041 eklass = klass->element_class;
7043 if (eklass == mono_defaults.string_class) {
7045 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7047 else if (eklass == mono_defaults.stringbuilder_class) {
7049 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7054 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7055 mono_mb_emit_ldarg (mb, argnum);
7057 mono_mb_emit_byte (mb, CEE_LDIND_I);
7058 mono_mb_emit_stloc (mb, src_var);
7061 mono_mb_emit_ldloc (mb, src_var);
7062 mono_mb_emit_stloc (mb, conv_arg);
7063 mono_mb_emit_ldloc (mb, src_var);
7064 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7068 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7069 MonoException *exc = mono_get_exception_not_implemented (msg);
7070 g_warning ("%s", msg);
7072 mono_raise_exception (exc);
7077 esize = sizeof (gpointer);
7078 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7079 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7081 esize = mono_class_native_size (eklass, NULL);
7083 /* allocate space for the native struct and store the address */
7084 mono_mb_emit_icon (mb, esize);
7085 mono_mb_emit_ldloc (mb, src_var);
7086 mono_mb_emit_byte (mb, CEE_LDLEN);
7088 if (eklass == mono_defaults.string_class) {
7089 /* Make the array bigger for the terminating null */
7090 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7091 mono_mb_emit_byte (mb, CEE_ADD);
7093 mono_mb_emit_byte (mb, CEE_MUL);
7094 mono_mb_emit_byte (mb, CEE_PREFIX1);
7095 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7096 mono_mb_emit_stloc (mb, conv_arg);
7098 mono_mb_emit_ldloc (mb, conv_arg);
7099 mono_mb_emit_stloc (mb, dest_ptr);
7101 /* Emit marshalling loop */
7102 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7103 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7104 mono_mb_emit_stloc (mb, index_var);
7105 label2 = mono_mb_get_label (mb);
7106 mono_mb_emit_ldloc (mb, index_var);
7107 mono_mb_emit_ldloc (mb, src_var);
7108 mono_mb_emit_byte (mb, CEE_LDLEN);
7109 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7111 /* Emit marshalling code */
7114 mono_mb_emit_ldloc (mb, dest_ptr);
7115 mono_mb_emit_ldloc (mb, src_var);
7116 mono_mb_emit_ldloc (mb, index_var);
7117 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7118 mono_mb_emit_icall (mb, conv_to_icall (conv));
7119 mono_mb_emit_byte (mb, CEE_STIND_I);
7121 /* set the src_ptr */
7122 mono_mb_emit_ldloc (mb, src_var);
7123 mono_mb_emit_ldloc (mb, index_var);
7124 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7125 mono_mb_emit_stloc (mb, 0);
7128 mono_mb_emit_ldloc (mb, dest_ptr);
7129 mono_mb_emit_stloc (mb, 1);
7131 /* emit valuetype conversion code */
7132 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7135 mono_mb_emit_add_to_local (mb, index_var, 1);
7136 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7138 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7140 mono_mb_patch_branch (mb, label3);
7142 if (eklass == mono_defaults.string_class) {
7143 /* Null terminate */
7144 mono_mb_emit_ldloc (mb, dest_ptr);
7145 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7146 mono_mb_emit_byte (mb, CEE_STIND_REF);
7149 mono_mb_patch_branch (mb, label1);
7154 case MARSHAL_ACTION_CONV_OUT:
7155 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7156 need_convert = ((klass->element_class == mono_defaults.char_class) && (encoding == MONO_NATIVE_LPWSTR)) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT);
7157 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7160 if (need_convert || need_free) {
7161 /* FIXME: Optimize blittable case */
7163 guint32 label1, label2, label3;
7164 int index_var, src_ptr, loc, esize;
7166 eklass = klass->element_class;
7167 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7168 esize = sizeof (gpointer);
7169 else if (eklass == mono_defaults.char_class)
7170 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7172 esize = mono_class_native_size (eklass, NULL);
7173 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7174 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7177 mono_mb_emit_ldarg (mb, argnum);
7179 mono_mb_emit_byte (mb, CEE_LDIND_I);
7180 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7182 mono_mb_emit_ldloc (mb, conv_arg);
7183 mono_mb_emit_stloc (mb, src_ptr);
7185 /* Emit marshalling loop */
7186 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7187 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7188 mono_mb_emit_stloc (mb, index_var);
7189 label2 = mono_mb_get_label (mb);
7190 mono_mb_emit_ldloc (mb, index_var);
7191 mono_mb_emit_ldarg (mb, argnum);
7193 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7194 mono_mb_emit_byte (mb, CEE_LDLEN);
7195 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7197 /* Emit marshalling code */
7199 if (eklass == mono_defaults.stringbuilder_class) {
7200 gboolean need_free2;
7201 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7203 g_assert (conv != -1);
7206 mono_mb_emit_ldarg (mb, argnum);
7208 mono_mb_emit_byte (mb, CEE_LDIND_I);
7209 mono_mb_emit_ldloc (mb, index_var);
7210 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7213 mono_mb_emit_ldloc (mb, src_ptr);
7214 mono_mb_emit_byte (mb, CEE_LDIND_I);
7216 mono_mb_emit_icall (mb, conv_to_icall (conv));
7220 mono_mb_emit_ldloc (mb, src_ptr);
7221 mono_mb_emit_byte (mb, CEE_LDIND_I);
7223 mono_mb_emit_icall (mb, mono_marshal_free);
7226 else if (eklass == mono_defaults.string_class) {
7229 mono_mb_emit_ldloc (mb, src_ptr);
7230 mono_mb_emit_byte (mb, CEE_LDIND_I);
7232 mono_mb_emit_icall (mb, mono_marshal_free);
7237 /* set the src_ptr */
7238 mono_mb_emit_ldloc (mb, src_ptr);
7239 mono_mb_emit_stloc (mb, 0);
7242 mono_mb_emit_ldarg (mb, argnum);
7244 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7245 mono_mb_emit_ldloc (mb, index_var);
7246 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7247 mono_mb_emit_stloc (mb, 1);
7249 /* emit valuetype conversion code */
7250 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7254 mono_mb_emit_ldloc (mb, src_ptr);
7255 mono_mb_emit_stloc (mb, loc);
7256 mono_mb_emit_ldloc (mb, loc);
7258 emit_struct_free (mb, eklass, loc);
7262 mono_mb_emit_add_to_local (mb, index_var, 1);
7263 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7265 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7267 mono_mb_patch_branch (mb, label1);
7268 mono_mb_patch_branch (mb, label3);
7271 if (klass->element_class->blittable) {
7272 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7274 mono_mb_emit_ldarg (mb, argnum);
7275 mono_mb_emit_ldloc (mb, conv_arg);
7276 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7281 case MARSHAL_ACTION_PUSH:
7283 mono_mb_emit_ldloc_addr (mb, conv_arg);
7285 mono_mb_emit_ldloc (mb, conv_arg);
7288 case MARSHAL_ACTION_CONV_RESULT:
7289 /* fixme: we need conversions here */
7290 mono_mb_emit_stloc (mb, 3);
7293 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7295 guint32 label1, label2, label3;
7296 int index_var, src_ptr, loc, esize, param_num, num_elem;
7297 MonoMarshalConv conv;
7298 gboolean is_string = FALSE;
7300 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7301 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7304 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7305 mono_mb_emit_exception_marshal_directive (mb, msg);
7309 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7310 mono_mb_emit_exception_marshal_directive (mb, msg);
7313 if (spec->native != MONO_NATIVE_LPARRAY) {
7314 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7315 mono_mb_emit_exception_marshal_directive (mb, msg);
7319 /* FIXME: t is from the method which is wrapped, not the delegate type */
7320 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7322 param_num = spec->data.array_data.param_num;
7323 num_elem = spec->data.array_data.num_elem;
7324 if (spec->data.array_data.elem_mult == 0)
7325 /* param_num is not specified */
7328 if (param_num == -1) {
7329 if (num_elem <= 0) {
7330 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7331 mono_mb_emit_exception_marshal_directive (mb, msg);
7336 /* FIXME: Optimize blittable case */
7338 eklass = klass->element_class;
7339 if (eklass == mono_defaults.string_class) {
7341 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7343 else if (eklass == mono_defaults.stringbuilder_class) {
7345 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7350 mono_marshal_load_type_info (eklass);
7353 esize = sizeof (gpointer);
7355 esize = mono_class_native_size (eklass, NULL);
7356 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7357 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7359 mono_mb_emit_byte (mb, CEE_LDNULL);
7360 mono_mb_emit_stloc (mb, conv_arg);
7362 /* Check param index */
7363 if (param_num != -1) {
7364 if (param_num >= m->sig->param_count) {
7365 char *msg = g_strdup ("Array size control parameter index is out of range.");
7366 mono_mb_emit_exception_marshal_directive (mb, msg);
7369 switch (m->sig->params [param_num]->type) {
7382 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7383 mono_mb_emit_exception_marshal_directive (mb, msg);
7390 mono_mb_emit_ldarg (mb, argnum);
7391 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7393 mono_mb_emit_ldarg (mb, argnum);
7394 mono_mb_emit_stloc (mb, src_ptr);
7396 /* Create managed array */
7398 * The LPArray marshalling spec says that sometimes param_num starts
7399 * from 1, sometimes it starts from 0. But MS seems to allways start
7403 if (param_num == -1) {
7404 mono_mb_emit_icon (mb, num_elem);
7406 mono_mb_emit_ldarg (mb, param_num);
7408 mono_mb_emit_icon (mb, num_elem);
7409 mono_mb_emit_byte (mb, CEE_ADD);
7411 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7414 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7415 mono_mb_emit_stloc (mb, conv_arg);
7417 if (eklass->blittable) {
7418 mono_mb_emit_ldloc (mb, conv_arg);
7419 mono_mb_emit_byte (mb, CEE_CONV_I);
7420 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7421 mono_mb_emit_byte (mb, CEE_ADD);
7422 mono_mb_emit_ldarg (mb, argnum);
7423 mono_mb_emit_ldloc (mb, conv_arg);
7424 mono_mb_emit_byte (mb, CEE_LDLEN);
7425 mono_mb_emit_icon (mb, esize);
7426 mono_mb_emit_byte (mb, CEE_MUL);
7427 mono_mb_emit_byte (mb, CEE_PREFIX1);
7428 mono_mb_emit_byte (mb, CEE_CPBLK);
7432 /* Emit marshalling loop */
7433 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7434 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7435 mono_mb_emit_stloc (mb, index_var);
7436 label2 = mono_mb_get_label (mb);
7437 mono_mb_emit_ldloc (mb, index_var);
7438 mono_mb_emit_ldloc (mb, conv_arg);
7439 mono_mb_emit_byte (mb, CEE_LDLEN);
7440 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7442 /* Emit marshalling code */
7444 g_assert (conv != -1);
7446 mono_mb_emit_ldloc (mb, conv_arg);
7447 mono_mb_emit_ldloc (mb, index_var);
7449 mono_mb_emit_ldloc (mb, src_ptr);
7450 mono_mb_emit_byte (mb, CEE_LDIND_I);
7452 mono_mb_emit_icall (mb, conv_to_icall (conv));
7453 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7456 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7457 mono_mb_emit_exception_marshal_directive (mb, msg);
7461 mono_mb_emit_add_to_local (mb, index_var, 1);
7462 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7464 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7466 mono_mb_patch_branch (mb, label1);
7467 mono_mb_patch_branch (mb, label3);
7471 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7473 guint32 label1, label2, label3;
7474 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7475 MonoMarshalConv conv;
7476 gboolean is_string = FALSE;
7479 /* Already handled in CONV_IN */
7482 /* These are already checked in CONV_IN */
7483 g_assert (!t->byref);
7484 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7485 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7487 param_num = spec->data.array_data.param_num;
7488 num_elem = spec->data.array_data.num_elem;
7490 if (spec->data.array_data.elem_mult == 0)
7491 /* param_num is not specified */
7494 if (param_num == -1) {
7495 if (num_elem <= 0) {
7496 g_assert_not_reached ();
7500 /* FIXME: Optimize blittable case */
7502 eklass = klass->element_class;
7503 if (eklass == mono_defaults.string_class) {
7505 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7507 else if (eklass == mono_defaults.stringbuilder_class) {
7509 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7514 mono_marshal_load_type_info (eklass);
7517 esize = sizeof (gpointer);
7519 esize = mono_class_native_size (eklass, NULL);
7521 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7522 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7525 mono_mb_emit_ldloc (mb, conv_arg);
7526 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7528 mono_mb_emit_ldarg (mb, argnum);
7529 mono_mb_emit_stloc (mb, dest_ptr);
7531 if (eklass->blittable) {
7533 mono_mb_emit_ldarg (mb, argnum);
7535 mono_mb_emit_ldloc (mb, conv_arg);
7536 mono_mb_emit_byte (mb, CEE_CONV_I);
7537 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7538 mono_mb_emit_byte (mb, CEE_ADD);
7540 mono_mb_emit_ldloc (mb, conv_arg);
7541 mono_mb_emit_byte (mb, CEE_LDLEN);
7542 mono_mb_emit_icon (mb, esize);
7543 mono_mb_emit_byte (mb, CEE_MUL);
7544 mono_mb_emit_byte (mb, CEE_PREFIX1);
7545 mono_mb_emit_byte (mb, CEE_CPBLK);
7549 /* Emit marshalling loop */
7550 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7551 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7552 mono_mb_emit_stloc (mb, index_var);
7553 label2 = mono_mb_get_label (mb);
7554 mono_mb_emit_ldloc (mb, index_var);
7555 mono_mb_emit_ldloc (mb, conv_arg);
7556 mono_mb_emit_byte (mb, CEE_LDLEN);
7557 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7559 /* Emit marshalling code */
7561 g_assert (conv != -1);
7564 mono_mb_emit_ldloc (mb, dest_ptr);
7567 mono_mb_emit_ldloc (mb, conv_arg);
7568 mono_mb_emit_ldloc (mb, index_var);
7570 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7572 mono_mb_emit_icall (mb, conv_to_icall (conv));
7573 mono_mb_emit_byte (mb, CEE_STIND_I);
7576 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7577 mono_mb_emit_exception_marshal_directive (mb, msg);
7581 mono_mb_emit_add_to_local (mb, index_var, 1);
7582 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7584 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7586 mono_mb_patch_branch (mb, label1);
7587 mono_mb_patch_branch (mb, label3);
7591 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7593 guint32 label1, label2, label3;
7594 int index_var, src, dest, esize;
7595 MonoMarshalConv conv = -1;
7596 gboolean is_string = FALSE;
7598 g_assert (!t->byref);
7600 eklass = klass->element_class;
7602 mono_marshal_load_type_info (eklass);
7604 if (eklass == mono_defaults.string_class) {
7606 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7609 g_assert_not_reached ();
7613 esize = sizeof (gpointer);
7614 else if (eklass == mono_defaults.char_class)
7615 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7617 esize = mono_class_native_size (eklass, NULL);
7619 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7620 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7622 mono_mb_emit_stloc (mb, src);
7623 mono_mb_emit_ldloc (mb, src);
7624 mono_mb_emit_stloc (mb, 3);
7626 /* Check for null */
7627 mono_mb_emit_ldloc (mb, src);
7628 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7630 /* Allocate native array */
7631 mono_mb_emit_icon (mb, esize);
7632 mono_mb_emit_ldloc (mb, src);
7633 mono_mb_emit_byte (mb, CEE_LDLEN);
7635 if (eklass == mono_defaults.string_class) {
7636 /* Make the array bigger for the terminating null */
7637 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7638 mono_mb_emit_byte (mb, CEE_ADD);
7640 mono_mb_emit_byte (mb, CEE_MUL);
7641 mono_mb_emit_icall (mb, mono_marshal_alloc);
7642 mono_mb_emit_stloc (mb, dest);
7643 mono_mb_emit_ldloc (mb, dest);
7644 mono_mb_emit_stloc (mb, 3);
7646 /* Emit marshalling loop */
7647 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7648 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7649 mono_mb_emit_stloc (mb, index_var);
7650 label2 = mono_mb_get_label (mb);
7651 mono_mb_emit_ldloc (mb, index_var);
7652 mono_mb_emit_ldloc (mb, src);
7653 mono_mb_emit_byte (mb, CEE_LDLEN);
7654 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7656 /* Emit marshalling code */
7658 g_assert (conv != -1);
7661 mono_mb_emit_ldloc (mb, dest);
7664 mono_mb_emit_ldloc (mb, src);
7665 mono_mb_emit_ldloc (mb, index_var);
7667 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7669 mono_mb_emit_icall (mb, conv_to_icall (conv));
7670 mono_mb_emit_byte (mb, CEE_STIND_I);
7673 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7674 mono_mb_emit_exception_marshal_directive (mb, msg);
7678 mono_mb_emit_add_to_local (mb, index_var, 1);
7679 mono_mb_emit_add_to_local (mb, dest, esize);
7681 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7683 mono_mb_patch_branch (mb, label3);
7684 mono_mb_patch_branch (mb, label1);
7688 g_assert_not_reached ();
7695 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7696 MonoMarshalSpec *spec,
7697 int conv_arg, MonoType **conv_arg_type,
7698 MarshalAction action)
7700 MonoMethodBuilder *mb = m->mb;
7703 case MARSHAL_ACTION_CONV_IN: {
7704 MonoType *local_type;
7706 guint8 ldc_op = CEE_LDC_I4_1;
7709 local_type = &mono_defaults.int32_class->byval_arg;
7711 switch (spec->native) {
7712 case MONO_NATIVE_I1:
7713 case MONO_NATIVE_U1:
7714 local_type = &mono_defaults.byte_class->byval_arg;
7716 case MONO_NATIVE_VARIANTBOOL:
7717 local_type = &mono_defaults.int16_class->byval_arg;
7718 ldc_op = CEE_LDC_I4_M1;
7720 case MONO_NATIVE_BOOLEAN:
7721 local_type = &mono_defaults.int32_class->byval_arg;
7724 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7725 local_type = &mono_defaults.int32_class->byval_arg;
7730 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7732 *conv_arg_type = local_type;
7733 conv_arg = mono_mb_add_local (mb, local_type);
7735 mono_mb_emit_ldarg (mb, argnum);
7737 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7738 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7739 mono_mb_emit_byte (mb, ldc_op);
7740 mono_mb_emit_stloc (mb, conv_arg);
7741 mono_mb_patch_branch (mb, label_false);
7746 case MARSHAL_ACTION_CONV_OUT:
7748 int label_false, label_end;
7752 mono_mb_emit_ldarg (mb, argnum);
7753 mono_mb_emit_ldloc (mb, conv_arg);
7755 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7756 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7758 label_end = mono_mb_emit_branch (mb, CEE_BR);
7759 mono_mb_patch_branch (mb, label_false);
7760 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7761 mono_mb_patch_branch (mb, label_end);
7763 mono_mb_emit_byte (mb, CEE_STIND_I1);
7767 case MARSHAL_ACTION_PUSH:
7769 mono_mb_emit_ldloc_addr (mb, conv_arg);
7771 mono_mb_emit_ldloc (mb, conv_arg);
7773 mono_mb_emit_ldarg (mb, argnum);
7776 case MARSHAL_ACTION_CONV_RESULT:
7777 /* maybe we need to make sure that it fits within 8 bits */
7778 mono_mb_emit_stloc (mb, 3);
7781 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7782 MonoClass* conv_arg_class = mono_defaults.int32_class;
7783 guint8 ldop = CEE_LDIND_I4;
7784 int label_null, label_false;
7786 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7789 switch (spec->native) {
7790 case MONO_NATIVE_I1:
7791 case MONO_NATIVE_U1:
7792 conv_arg_class = mono_defaults.byte_class;
7793 ldop = CEE_LDIND_I1;
7795 case MONO_NATIVE_VARIANTBOOL:
7796 conv_arg_class = mono_defaults.int16_class;
7797 ldop = CEE_LDIND_I2;
7799 case MONO_NATIVE_BOOLEAN:
7802 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7807 *conv_arg_type = &conv_arg_class->this_arg;
7809 *conv_arg_type = &conv_arg_class->byval_arg;
7812 mono_mb_emit_ldarg (mb, argnum);
7816 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7817 mono_mb_emit_ldarg (mb, argnum);
7818 mono_mb_emit_byte (mb, ldop);
7822 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7823 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7824 mono_mb_emit_stloc (mb, conv_arg);
7825 mono_mb_patch_branch (mb, label_false);
7828 mono_mb_patch_branch (mb, label_null);
7832 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7833 guint8 stop = CEE_STIND_I4;
7834 guint8 ldc_op = CEE_LDC_I4_1;
7835 int label_null,label_false, label_end;;
7840 switch (spec->native) {
7841 case MONO_NATIVE_I1:
7842 case MONO_NATIVE_U1:
7843 stop = CEE_STIND_I1;
7845 case MONO_NATIVE_VARIANTBOOL:
7846 stop = CEE_STIND_I2;
7847 ldc_op = CEE_LDC_I4_M1;
7855 mono_mb_emit_ldarg (mb, argnum);
7856 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7858 mono_mb_emit_ldarg (mb, argnum);
7859 mono_mb_emit_ldloc (mb, conv_arg);
7861 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7862 mono_mb_emit_byte (mb, ldc_op);
7863 label_end = mono_mb_emit_branch (mb, CEE_BR);
7865 mono_mb_patch_branch (mb, label_false);
7866 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7867 mono_mb_patch_branch (mb, label_end);
7869 mono_mb_emit_byte (mb, stop);
7870 mono_mb_patch_branch (mb, label_null);
7875 g_assert_not_reached ();
7882 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7883 MonoMarshalSpec *spec, int conv_arg,
7884 MonoType **conv_arg_type, MarshalAction action)
7886 MonoMethodBuilder *mb = m->mb;
7889 case MARSHAL_ACTION_CONV_IN:
7890 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7891 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7892 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7896 case MARSHAL_ACTION_PUSH:
7897 mono_mb_emit_ldarg (mb, argnum);
7900 case MARSHAL_ACTION_CONV_RESULT:
7901 /* no conversions necessary */
7902 mono_mb_emit_stloc (mb, 3);
7913 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7914 MonoMarshalSpec *spec, int conv_arg,
7915 MonoType **conv_arg_type, MarshalAction action)
7917 MonoMethodBuilder *mb = m->mb;
7920 case MARSHAL_ACTION_PUSH:
7921 /* fixme: dont know how to marshal that. We cant simply
7922 * convert it to a one byte UTF8 character, because an
7923 * unicode character may need more that one byte in UTF8 */
7924 mono_mb_emit_ldarg (mb, argnum);
7927 case MARSHAL_ACTION_CONV_RESULT:
7928 /* fixme: we need conversions here */
7929 mono_mb_emit_stloc (mb, 3);
7940 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7941 MonoMarshalSpec *spec, int conv_arg,
7942 MonoType **conv_arg_type, MarshalAction action)
7944 MonoMethodBuilder *mb = m->mb;
7947 case MARSHAL_ACTION_PUSH:
7948 mono_mb_emit_ldarg (mb, argnum);
7951 case MARSHAL_ACTION_CONV_RESULT:
7952 /* no conversions necessary */
7953 mono_mb_emit_stloc (mb, 3);
7964 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7965 MonoMarshalSpec *spec, int conv_arg,
7966 MonoType **conv_arg_type, MarshalAction action)
7968 /* Ensure that we have marshalling info for this param */
7969 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7971 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7972 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7974 if (spec && spec->native == MONO_NATIVE_ASANY)
7975 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7978 case MONO_TYPE_VALUETYPE:
7979 if (t->data.klass == mono_defaults.handleref_class)
7980 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7982 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7983 case MONO_TYPE_STRING:
7984 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7985 case MONO_TYPE_CLASS:
7986 case MONO_TYPE_OBJECT:
7987 if (spec && spec->native == MONO_NATIVE_STRUCT)
7988 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7991 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7992 spec->native == MONO_NATIVE_IDISPATCH ||
7993 spec->native == MONO_NATIVE_INTERFACE))
7994 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7995 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7996 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7997 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7998 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8001 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
8002 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8003 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8005 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8006 case MONO_TYPE_ARRAY:
8007 case MONO_TYPE_SZARRAY:
8008 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8009 case MONO_TYPE_BOOLEAN:
8010 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8012 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8013 case MONO_TYPE_CHAR:
8014 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8027 case MONO_TYPE_FNPTR:
8028 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8029 case MONO_TYPE_GENERICINST:
8030 if (mono_type_generic_inst_is_valuetype (t))
8031 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8033 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8040 * mono_marshal_emit_native_wrapper:
8041 * @image: the image to use for looking up custom marshallers
8042 * @sig: The signature of the native function
8043 * @piinfo: Marshalling information
8044 * @mspecs: Marshalling information
8045 * @aot: whenever the created method will be compiled by the AOT compiler
8046 * @method: if non-NULL, the pinvoke method to call
8047 * @check_exceptions: Whenever to check for pending exceptions after the native call
8049 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8052 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8054 EmitMarshalContext m;
8055 MonoMethodSignature *csig;
8057 int i, argnum, *tmp_locals;
8059 static MonoMethodSignature *get_last_error_sig = NULL;
8064 /* we copy the signature, so that we can set pinvoke to 0 */
8065 csig = signature_dup (mb->method->klass->image, sig);
8070 /* we allocate local for use with emit_struct_conv() */
8071 /* allocate local 0 (pointer) src_ptr */
8072 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8073 /* allocate local 1 (pointer) dst_ptr */
8074 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8075 /* allocate local 2 (boolean) delete_old */
8076 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8078 /* delete_old = FALSE */
8079 mono_mb_emit_icon (mb, 0);
8080 mono_mb_emit_stloc (mb, 2);
8082 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8083 /* allocate local 3 to store the return value */
8084 mono_mb_add_local (mb, sig->ret);
8087 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8088 /* Return type custom marshaling */
8090 * Since we can't determine the return type of the unmanaged function,
8091 * we assume it returns a pointer, and pass that pointer to
8092 * MarshalNativeToManaged.
8094 csig->ret = &mono_defaults.int_class->byval_arg;
8097 /* we first do all conversions */
8098 tmp_locals = alloca (sizeof (int) * sig->param_count);
8099 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8101 for (i = 0; i < sig->param_count; i ++) {
8102 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8105 /* push all arguments */
8108 mono_mb_emit_byte (mb, CEE_LDARG_0);
8110 for (i = 0; i < sig->param_count; i++) {
8111 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8114 /* call the native method */
8115 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8117 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8119 g_assert_not_reached ();
8124 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8125 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8126 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8127 mono_mb_emit_calli (mb, csig);
8129 mono_mb_emit_native_call (mb, csig, func);
8133 /* Set LastError if needed */
8134 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8135 if (!get_last_error_sig) {
8136 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8137 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8138 get_last_error_sig->pinvoke = 1;
8143 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8144 * clobber its value.
8146 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8147 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8149 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8153 /* convert the result */
8154 if (!sig->ret->byref) {
8155 MonoMarshalSpec *spec = mspecs [0];
8156 type = sig->ret->type;
8158 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8159 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8164 case MONO_TYPE_VOID:
8166 case MONO_TYPE_VALUETYPE:
8167 klass = sig->ret->data.klass;
8168 if (klass->enumtype) {
8169 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8172 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8186 case MONO_TYPE_FNPTR:
8187 case MONO_TYPE_STRING:
8188 case MONO_TYPE_CLASS:
8189 case MONO_TYPE_OBJECT:
8190 case MONO_TYPE_BOOLEAN:
8191 case MONO_TYPE_ARRAY:
8192 case MONO_TYPE_SZARRAY:
8193 case MONO_TYPE_CHAR:
8195 case MONO_TYPE_GENERICINST:
8196 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8198 case MONO_TYPE_TYPEDBYREF:
8200 g_warning ("return type 0x%02x unknown", sig->ret->type);
8201 g_assert_not_reached ();
8205 mono_mb_emit_stloc (mb, 3);
8209 * Need to call this after converting the result since MONO_VTADDR needs
8210 * to be adjacent to the call instruction.
8212 if (check_exceptions)
8213 emit_thread_interrupt_checkpoint (mb);
8215 /* we need to convert byref arguments back and free string arrays */
8216 for (i = 0; i < sig->param_count; i++) {
8217 MonoType *t = sig->params [i];
8218 MonoMarshalSpec *spec = mspecs [i + 1];
8220 argnum = i + sig->hasthis;
8222 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8223 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8228 case MONO_TYPE_STRING:
8229 case MONO_TYPE_VALUETYPE:
8230 case MONO_TYPE_CLASS:
8231 case MONO_TYPE_OBJECT:
8232 case MONO_TYPE_SZARRAY:
8233 case MONO_TYPE_BOOLEAN:
8234 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8239 if (!MONO_TYPE_IS_VOID(sig->ret))
8240 mono_mb_emit_ldloc (mb, 3);
8242 mono_mb_emit_byte (mb, CEE_RET);
8245 G_GNUC_UNUSED static void
8246 code_for (MonoMethod *method) {
8247 MonoMethodHeader *header = mono_method_get_header (method);
8248 printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size));
8252 * mono_marshal_get_native_wrapper:
8253 * @method: The MonoMethod to wrap.
8254 * @check_exceptions: Whenever to check for pending exceptions
8256 * generates IL code for the pinvoke wrapper (the generated method
8257 * calls the unmanaged code in piinfo->addr)
8260 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8262 MonoMethodSignature *sig, *csig;
8263 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8264 MonoMethodBuilder *mb;
8265 MonoMarshalSpec **mspecs;
8268 gboolean pinvoke = FALSE;
8271 const char *exc_class = "MissingMethodException";
8272 const char *exc_arg = NULL;
8274 g_assert (method != NULL);
8275 g_assert (mono_method_signature (method)->pinvoke);
8278 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8280 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8281 if ((res = mono_marshal_find_in_cache (cache, method)))
8284 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8286 return mono_cominterop_get_native_wrapper (method);
8288 g_assert_not_reached ();
8292 sig = mono_method_signature (method);
8294 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8295 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8298 if (!piinfo->addr) {
8300 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8301 exc_arg = "Method contains unsupported native code";
8303 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8305 piinfo->addr = mono_lookup_internal_call (method);
8308 /* hack - redirect certain string constructors to CreateString */
8309 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8310 g_assert (!pinvoke);
8311 g_assert (method->string_ctor);
8312 g_assert (sig->hasthis);
8314 /* CreateString returns a value */
8315 csig = signature_dup (method->klass->image, sig);
8316 csig->ret = &mono_defaults.string_class->byval_arg;
8320 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8321 if (!strcmp ("CreateString", res->name) &&
8322 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8324 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8325 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8327 /* create a wrapper to preserve .ctor in stack trace */
8328 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8330 mono_mb_emit_byte (mb, CEE_LDARG_0);
8331 for (i = 1; i <= csig->param_count; i++)
8332 mono_mb_emit_ldarg (mb, i);
8333 mono_mb_emit_managed_call (mb, res, NULL);
8334 mono_mb_emit_byte (mb, CEE_RET);
8336 /* use native_wrapper_cache because internal calls are looked up there */
8337 res = mono_mb_create_and_cache (cache, method,
8338 mb, csig, csig->param_count + 1);
8346 /* exception will be thrown */
8347 piinfo->addr = NULL;
8348 g_warning ("cannot find CreateString for .ctor");
8351 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8353 mb->method->save_lmf = 1;
8356 * In AOT mode and embedding scenarios, it is possible that the icall is not
8357 * registered in the runtime doing the AOT compilation.
8359 if (!piinfo->addr && !aot) {
8360 mono_mb_emit_exception (mb, exc_class, exc_arg);
8361 csig = signature_dup (method->klass->image, sig);
8363 res = mono_mb_create_and_cache (cache, method,
8364 mb, csig, csig->param_count + 16);
8369 /* internal calls: we simply push all arguments and call the method (no conversions) */
8370 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8372 csig = signature_dup_add_this (sig, method->klass);
8374 csig = signature_dup (method->klass->image, sig);
8376 /* hack - string constructors returns a value */
8377 if (method->string_ctor)
8378 csig->ret = &mono_defaults.string_class->byval_arg;
8384 * Add a null check since public icalls can be called with 'call' which
8385 * does no such check.
8387 mono_mb_emit_byte (mb, CEE_LDARG_0);
8388 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8389 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8390 mono_mb_patch_branch (mb, pos);
8392 mono_mb_emit_byte (mb, CEE_LDARG_0);
8395 for (i = 0; i < sig->param_count; i++)
8396 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8399 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8400 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8401 mono_mb_emit_calli (mb, csig);
8403 g_assert (piinfo->addr);
8404 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8406 if (check_exceptions)
8407 emit_thread_interrupt_checkpoint (mb);
8408 mono_mb_emit_byte (mb, CEE_RET);
8410 csig = signature_dup (method->klass->image, csig);
8412 res = mono_mb_create_and_cache (cache, method,
8413 mb, csig, csig->param_count + 16);
8420 g_assert (piinfo->addr);
8422 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8423 mono_method_get_marshal_info (method, mspecs);
8425 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8427 csig = signature_dup (method->klass->image, sig);
8429 res = mono_mb_create_and_cache (cache, method,
8430 mb, csig, csig->param_count + 16);
8433 for (i = sig->param_count; i >= 0; i--)
8435 mono_metadata_free_marshal_spec (mspecs [i]);
8438 /* code_for (res); */
8444 * mono_marshal_get_native_func_wrapper:
8445 * @image: The image to use for memory allocation and for looking up custom marshallers.
8446 * @sig: The signature of the function
8447 * @func: The native function to wrap
8449 * Returns a wrapper method around native functions, similar to the pinvoke
8453 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8454 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8456 MonoMethodSignature *csig;
8458 MonoMethodBuilder *mb;
8463 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8464 if ((res = mono_marshal_find_in_cache (cache, func)))
8467 name = g_strdup_printf ("wrapper_native_%p", func);
8468 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8469 mb->method->save_lmf = 1;
8471 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8473 csig = signature_dup (image, sig);
8475 res = mono_mb_create_and_cache (cache, func,
8476 mb, csig, csig->param_count + 16);
8479 mono_marshal_set_wrapper_info (res, NULL);
8481 /* code_for (res); */
8487 * mono_marshal_emit_managed_wrapper:
8489 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8490 * the delegate which wraps the managed method to be called. For closed delegates,
8491 * it could have fewer parameters than the method it wraps.
8492 * THIS_LOC is the memory location where the target of the delegate is stored.
8495 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8497 MonoMethodSignature *sig, *csig;
8499 gboolean closed = FALSE;
8504 /* allocate local 0 (pointer) src_ptr */
8505 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8506 /* allocate local 1 (pointer) dst_ptr */
8507 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8508 /* allocate local 2 (boolean) delete_old */
8509 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8511 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8512 /* Closed delegate */
8513 g_assert (sig->param_count == invoke_sig->param_count + 1);
8515 /* Use a new signature without the first argument */
8516 sig = mono_metadata_signature_dup (sig);
8517 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8518 sig->param_count --;
8521 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8522 /* allocate local 3 to store the return value */
8523 mono_mb_add_local (mb, sig->ret);
8526 mono_mb_emit_icon (mb, 0);
8527 mono_mb_emit_stloc (mb, 2);
8529 /* we first do all conversions */
8530 tmp_locals = alloca (sizeof (int) * sig->param_count);
8531 for (i = 0; i < sig->param_count; i ++) {
8532 MonoType *t = sig->params [i];
8535 case MONO_TYPE_OBJECT:
8536 case MONO_TYPE_CLASS:
8537 case MONO_TYPE_VALUETYPE:
8538 case MONO_TYPE_ARRAY:
8539 case MONO_TYPE_SZARRAY:
8540 case MONO_TYPE_STRING:
8541 case MONO_TYPE_BOOLEAN:
8542 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8551 emit_thread_interrupt_checkpoint (mb);
8554 if (target_handle) {
8555 mono_mb_emit_icon (mb, (gint32)target_handle);
8556 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8559 g_assert_not_reached ();
8561 } else if (closed) {
8562 mono_mb_emit_icon (mb, (gint32)target_handle);
8563 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8566 for (i = 0; i < sig->param_count; i++) {
8567 MonoType *t = sig->params [i];
8569 if (tmp_locals [i]) {
8571 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8573 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8576 mono_mb_emit_ldarg (mb, i);
8579 mono_mb_emit_managed_call (mb, method, NULL);
8581 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8582 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8583 } else if (!sig->ret->byref) {
8584 switch (sig->ret->type) {
8585 case MONO_TYPE_VOID:
8587 case MONO_TYPE_BOOLEAN:
8590 case MONO_TYPE_CHAR:
8602 case MONO_TYPE_OBJECT:
8603 mono_mb_emit_stloc (mb, 3);
8605 case MONO_TYPE_STRING:
8606 csig->ret = &mono_defaults.int_class->byval_arg;
8607 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8609 case MONO_TYPE_VALUETYPE:
8610 case MONO_TYPE_CLASS:
8611 case MONO_TYPE_SZARRAY:
8612 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8615 g_warning ("return type 0x%02x unknown", sig->ret->type);
8616 g_assert_not_reached ();
8619 mono_mb_emit_stloc (mb, 3);
8622 /* Convert byref arguments back */
8623 for (i = 0; i < sig->param_count; i ++) {
8624 MonoType *t = sig->params [i];
8625 MonoMarshalSpec *spec = mspecs [i + 1];
8627 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8628 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8630 else if (t->byref) {
8632 case MONO_TYPE_CLASS:
8633 case MONO_TYPE_VALUETYPE:
8634 case MONO_TYPE_OBJECT:
8635 case MONO_TYPE_STRING:
8636 case MONO_TYPE_BOOLEAN:
8637 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8641 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8642 /* The [Out] information is encoded in the delegate signature */
8644 case MONO_TYPE_SZARRAY:
8645 case MONO_TYPE_CLASS:
8646 case MONO_TYPE_VALUETYPE:
8647 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8650 g_assert_not_reached ();
8655 if (m->retobj_var) {
8656 mono_mb_emit_ldloc (mb, m->retobj_var);
8657 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8658 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8661 if (!MONO_TYPE_IS_VOID(sig->ret))
8662 mono_mb_emit_ldloc (mb, 3);
8663 mono_mb_emit_byte (mb, CEE_RET);
8672 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8674 MonoMethodSignature *sig;
8679 * Under windows, delegates passed to native code must use the STDCALL
8680 * calling convention.
8682 csig->call_convention = MONO_CALL_STDCALL;
8685 sig = mono_method_signature (method);
8687 /* Change default calling convention if needed */
8688 /* Why is this a modopt ? */
8689 if (sig->ret && sig->ret->num_mods) {
8690 for (i = 0; i < sig->ret->num_mods; ++i) {
8691 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8692 g_assert (cmod_class);
8693 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8694 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8695 csig->call_convention = MONO_CALL_C;
8696 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8697 csig->call_convention = MONO_CALL_STDCALL;
8698 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8699 csig->call_convention = MONO_CALL_FASTCALL;
8700 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8701 csig->call_convention = MONO_CALL_THISCALL;
8708 * generates IL code to call managed methods from unmanaged code
8709 * If target_handle==0, the wrapper info will be a NativeToManagedWrapperInfo structure.
8712 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8714 static MonoClass *UnmanagedFunctionPointerAttribute;
8715 MonoMethodSignature *sig, *csig, *invoke_sig;
8716 MonoMethodBuilder *mb;
8717 MonoMethod *res, *invoke;
8718 MonoMarshalSpec **mspecs;
8719 MonoMethodPInvoke piinfo;
8722 EmitMarshalContext m;
8724 g_assert (method != NULL);
8725 g_assert (!mono_method_signature (method)->pinvoke);
8728 * FIXME: Should cache the method+delegate type pair, since the same method
8729 * could be called with different delegates, thus different marshalling
8732 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8733 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8736 invoke = mono_get_delegate_invoke (delegate_klass);
8737 invoke_sig = mono_method_signature (invoke);
8739 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8740 mono_method_get_marshal_info (invoke, mspecs);
8742 sig = mono_method_signature (method);
8744 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8746 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8747 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8749 /* we copy the signature, so that we can modify it */
8751 /* Need to free this later */
8752 csig = mono_metadata_signature_dup (invoke_sig);
8754 csig = signature_dup (method->klass->image, invoke_sig);
8763 m.image = method->klass->image;
8765 mono_marshal_set_callconv_from_modopt (invoke, csig);
8767 /* Handle the UnmanagedFunctionPointerAttribute */
8768 if (!UnmanagedFunctionPointerAttribute)
8769 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8771 /* The attribute is only available in Net 2.0 */
8772 if (UnmanagedFunctionPointerAttribute) {
8773 MonoCustomAttrInfo *cinfo;
8774 MonoCustomAttrEntry *attr;
8777 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8778 * contents of the attribute without constructing it, as that might not be
8779 * possible when running in cross-compiling mode.
8781 cinfo = mono_custom_attrs_from_class (delegate_klass);
8784 for (i = 0; i < cinfo->num_attrs; ++i) {
8785 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8786 attr = &cinfo->attrs [i];
8792 MonoArray *typed_args, *named_args;
8793 CattrNamedArg *arginfo;
8797 MonoBoolean set_last_error = 0;
8798 MonoBoolean best_fit_mapping = 0;
8799 MonoBoolean throw_on_unmappable = 0;
8801 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8803 g_assert (mono_array_length (typed_args) == 1);
8806 o = mono_array_get (typed_args, MonoObject*, 0);
8807 call_conv = *(gint32*)mono_object_unbox (o);
8810 for (i = 0; i < mono_array_length (named_args); ++i) {
8811 CattrNamedArg *narg = &arginfo [i];
8813 o = mono_array_get (named_args, MonoObject*, i);
8815 g_assert (narg->field);
8816 if (!strcmp (narg->field->name, "CharSet")) {
8817 charset = *(gint32*)mono_object_unbox (o);
8818 } else if (!strcmp (narg->field->name, "SetLastError")) {
8819 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8820 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8821 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8822 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8823 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8825 g_assert_not_reached ();
8831 memset (&piinfo, 0, sizeof (piinfo));
8833 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8835 csig->call_convention = call_conv - 1;
8838 if (cinfo && !cinfo->cached)
8839 mono_custom_attrs_free (cinfo);
8842 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8844 if (!target_handle) {
8845 NativeToManagedWrapperInfo *info;
8847 res = mono_mb_create_and_cache (cache, method,
8848 mb, csig, sig->param_count + 16);
8849 // FIXME: Associate it with the method+delegate_klass pair
8850 info = mono_image_alloc0 (method->klass->image, sizeof (NativeToManagedWrapperInfo));
8851 info->method = method;
8852 info->klass = delegate_klass;
8853 mono_marshal_set_wrapper_info (res, info);
8856 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8860 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8862 mono_metadata_free_marshal_spec (mspecs [i]);
8865 /* code_for (res); */
8871 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8874 MonoMethodSignature *sig;
8875 MonoMethodBuilder *mb;
8880 method = mono_get_method (image, token, NULL);
8883 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8884 MonoMethodSignature *csig;
8885 MonoMarshalSpec **mspecs;
8886 EmitMarshalContext m;
8888 sig = mono_method_signature (method);
8889 g_assert (!sig->hasthis);
8891 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8892 mono_method_get_marshal_info (method, mspecs);
8894 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8895 csig = signature_dup (image, sig);
8906 mono_marshal_set_callconv_from_modopt (method, csig);
8908 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8910 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8913 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8916 for (i = sig->param_count; i >= 0; i--)
8918 mono_metadata_free_marshal_spec (mspecs [i]);
8921 return mono_compile_method (method);
8924 sig = mono_method_signature (method);
8925 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8927 param_count = sig->param_count + sig->hasthis;
8928 for (i = 0; i < param_count; i++)
8929 mono_mb_emit_ldarg (mb, i);
8931 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8932 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8934 mono_mb_emit_op (mb, CEE_CALL, method);
8935 mono_mb_emit_byte (mb, CEE_RET);
8938 method = mono_mb_create_method (mb, sig, param_count);
8941 return mono_compile_method (method);
8944 static MonoReflectionType *
8945 type_from_handle (MonoType *handle)
8947 MonoDomain *domain = mono_domain_get ();
8948 MonoClass *klass = mono_class_from_mono_type (handle);
8950 MONO_ARCH_SAVE_REGS;
8952 mono_class_init (klass);
8953 return mono_type_get_object (domain, handle);
8957 * This does the equivalent of mono_object_castclass_with_cache.
8960 mono_marshal_get_castclass_with_cache (void)
8962 static MonoMethod *cached;
8964 MonoMethodBuilder *mb;
8965 MonoMethodSignature *sig;
8966 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8971 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8972 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8973 sig->params [0] = &mono_defaults.object_class->byval_arg;
8974 sig->params [1] = &mono_defaults.int_class->byval_arg;
8975 sig->params [2] = &mono_defaults.int_class->byval_arg;
8976 sig->ret = &mono_defaults.object_class->byval_arg;
8979 /* allocate local 0 (pointer) obj_vtable */
8980 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8983 mono_mb_emit_ldarg (mb, 0);
8984 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8986 /*obj_vtable = obj->vtable;*/
8987 mono_mb_emit_ldarg (mb, 0);
8988 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8989 mono_mb_emit_byte (mb, CEE_LDIND_I);
8990 mono_mb_emit_stloc (mb, 0);
8993 mono_mb_emit_ldarg (mb, 2);
8994 mono_mb_emit_byte (mb, CEE_LDIND_I);
8995 mono_mb_emit_ldloc (mb, 0);
8997 /*if (*cache == obj_vtable)*/
8998 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9001 mono_mb_emit_ldarg (mb, 0);
9002 mono_mb_emit_byte (mb, CEE_RET);
9004 mono_mb_patch_branch (mb, cache_miss_pos);
9005 /*if (mono_object_isinst (obj, klass)) */
9006 mono_mb_emit_ldarg (mb, 0);
9007 mono_mb_emit_ldarg (mb, 1);
9008 mono_mb_emit_icall (mb, mono_object_isinst);
9009 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9011 /**cache = obj_vtable;*/
9012 mono_mb_emit_ldarg (mb, 2);
9013 mono_mb_emit_ldloc (mb, 0);
9014 mono_mb_emit_byte (mb, CEE_STIND_I);
9017 mono_mb_emit_ldarg (mb, 0);
9018 mono_mb_emit_byte (mb, CEE_RET);
9021 mono_mb_patch_branch (mb, invalid_cast_pos);
9022 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9025 mono_mb_patch_branch (mb, return_null_pos);
9026 mono_mb_emit_byte (mb, CEE_LDNULL);
9027 mono_mb_emit_byte (mb, CEE_RET);
9029 res = mono_mb_create_method (mb, sig, 8);
9030 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9031 mono_free_method (res);
9032 mono_metadata_free_method_signature (sig);
9040 * This does the equivalent of mono_object_isinst_with_cache.
9043 mono_marshal_get_isinst_with_cache (void)
9045 static MonoMethod *cached;
9047 MonoMethodBuilder *mb;
9048 MonoMethodSignature *sig;
9049 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9054 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9055 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9056 sig->params [0] = &mono_defaults.object_class->byval_arg;
9057 sig->params [1] = &mono_defaults.int_class->byval_arg;
9058 sig->params [2] = &mono_defaults.int_class->byval_arg;
9059 sig->ret = &mono_defaults.object_class->byval_arg;
9062 /* allocate local 0 (pointer) obj_vtable */
9063 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9064 /* allocate local 1 (pointer) cached_vtable */
9065 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9068 mono_mb_emit_ldarg (mb, 0);
9069 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9071 /*obj_vtable = obj->vtable;*/
9072 mono_mb_emit_ldarg (mb, 0);
9073 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9074 mono_mb_emit_byte (mb, CEE_LDIND_I);
9075 mono_mb_emit_stloc (mb, 0);
9077 /* cached_vtable = *cache*/
9078 mono_mb_emit_ldarg (mb, 2);
9079 mono_mb_emit_byte (mb, CEE_LDIND_I);
9080 mono_mb_emit_stloc (mb, 1);
9082 mono_mb_emit_ldloc (mb, 1);
9083 mono_mb_emit_byte (mb, CEE_LDC_I4);
9084 mono_mb_emit_i4 (mb, ~0x1);
9085 mono_mb_emit_byte (mb, CEE_CONV_U);
9086 mono_mb_emit_byte (mb, CEE_AND);
9087 mono_mb_emit_ldloc (mb, 0);
9088 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9089 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9091 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9092 mono_mb_emit_ldloc (mb, 1);
9093 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9094 mono_mb_emit_byte (mb, CEE_CONV_U);
9095 mono_mb_emit_byte (mb, CEE_AND);
9096 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9099 mono_mb_emit_ldarg (mb, 0);
9100 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9103 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9104 mono_mb_emit_byte (mb, CEE_LDNULL);
9106 mono_mb_patch_branch (mb, cache_hit_pos);
9107 mono_mb_emit_byte (mb, CEE_RET);
9109 mono_mb_patch_branch (mb, cache_miss_pos);
9110 /*if (mono_object_isinst (obj, klass)) */
9111 mono_mb_emit_ldarg (mb, 0);
9112 mono_mb_emit_ldarg (mb, 1);
9113 mono_mb_emit_icall (mb, mono_object_isinst);
9114 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9116 /**cache = obj_vtable;*/
9117 mono_mb_emit_ldarg (mb, 2);
9118 mono_mb_emit_ldloc (mb, 0);
9119 mono_mb_emit_byte (mb, CEE_STIND_I);
9122 mono_mb_emit_ldarg (mb, 0);
9123 mono_mb_emit_byte (mb, CEE_RET);
9126 mono_mb_patch_branch (mb, not_an_instance_pos);
9127 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9128 mono_mb_emit_ldarg (mb, 2);
9129 /*obj_vtable | 0x1*/
9130 mono_mb_emit_ldloc (mb, 0);
9131 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9132 mono_mb_emit_byte (mb, CEE_CONV_U);
9133 mono_mb_emit_byte (mb, CEE_OR);
9136 mono_mb_emit_byte (mb, CEE_STIND_I);
9139 mono_mb_patch_branch (mb, return_null_pos);
9140 mono_mb_emit_byte (mb, CEE_LDNULL);
9141 mono_mb_emit_byte (mb, CEE_RET);
9143 res = mono_mb_create_method (mb, sig, 8);
9144 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9145 mono_free_method (res);
9146 mono_metadata_free_method_signature (sig);
9154 * mono_marshal_get_isinst:
9155 * @klass: the type of the field
9157 * This method generates a function which can be used to check if an object is
9158 * an instance of the given type, icluding the case where the object is a proxy.
9159 * The generated function has the following signature:
9160 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9163 mono_marshal_get_isinst (MonoClass *klass)
9165 static MonoMethodSignature *isint_sig = NULL;
9168 int pos_was_ok, pos_failed, pos_end, pos_end2;
9170 MonoMethodBuilder *mb;
9172 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9173 if ((res = mono_marshal_find_in_cache (cache, klass)))
9177 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9178 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9179 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9180 isint_sig->pinvoke = 0;
9183 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9184 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9187 mb->method->save_lmf = 1;
9189 /* check if the object is a proxy that needs special cast */
9190 mono_mb_emit_ldarg (mb, 0);
9191 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9192 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9194 /* The result of MONO_ISINST can be:
9195 0) the type check succeeded
9196 1) the type check did not succeed
9197 2) a CanCastTo call is needed */
9199 mono_mb_emit_byte (mb, CEE_DUP);
9200 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9202 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9203 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9205 /* get the real proxy from the transparent proxy*/
9207 mono_mb_emit_ldarg (mb, 0);
9208 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9209 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9213 mono_mb_patch_branch (mb, pos_failed);
9214 mono_mb_emit_byte (mb, CEE_LDNULL);
9215 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9219 mono_mb_patch_branch (mb, pos_was_ok);
9220 mono_mb_emit_byte (mb, CEE_POP);
9221 mono_mb_emit_ldarg (mb, 0);
9225 mono_mb_patch_branch (mb, pos_end);
9226 mono_mb_patch_branch (mb, pos_end2);
9227 mono_mb_emit_byte (mb, CEE_RET);
9229 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9236 * mono_marshal_get_castclass:
9237 * @klass: the type of the field
9239 * This method generates a function which can be used to cast an object to
9240 * an instance of the given type, icluding the case where the object is a proxy.
9241 * The generated function has the following signature:
9242 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9245 mono_marshal_get_castclass (MonoClass *klass)
9247 static MonoMethodSignature *castclass_sig = NULL;
9250 int pos_was_ok, pos_was_ok2;
9252 MonoMethodBuilder *mb;
9254 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9255 if ((res = mono_marshal_find_in_cache (cache, klass)))
9258 if (!castclass_sig) {
9259 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9260 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9261 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9262 castclass_sig->pinvoke = 0;
9265 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9266 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9269 mb->method->save_lmf = 1;
9271 /* check if the object is a proxy that needs special cast */
9272 mono_mb_emit_ldarg (mb, 0);
9273 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9274 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9276 /* The result of MONO_ISINST can be:
9277 0) the cast is valid
9278 1) cast of unknown proxy type
9279 or an exception if the cast is is invalid
9282 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9284 /* get the real proxy from the transparent proxy*/
9286 mono_mb_emit_ldarg (mb, 0);
9287 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9288 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9291 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9294 mono_mb_patch_branch (mb, pos_was_ok);
9295 mono_mb_patch_branch (mb, pos_was_ok2);
9296 mono_mb_emit_ldarg (mb, 0);
9299 mono_mb_emit_byte (mb, CEE_RET);
9301 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9308 mono_marshal_get_proxy_cancast (MonoClass *klass)
9310 static MonoMethodSignature *isint_sig = NULL;
9313 int pos_failed, pos_end;
9315 MonoMethod *can_cast_to;
9316 MonoMethodDesc *desc;
9317 MonoMethodBuilder *mb;
9319 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9320 if ((res = mono_marshal_find_in_cache (cache, klass)))
9324 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9325 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9326 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9327 isint_sig->pinvoke = 0;
9330 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
9331 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9334 mb->method->save_lmf = 1;
9336 /* get the real proxy from the transparent proxy*/
9337 mono_mb_emit_ldarg (mb, 0);
9338 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9339 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9341 /* get the reflection type from the type handle */
9342 mono_mb_emit_ptr (mb, &klass->byval_arg);
9343 mono_mb_emit_icall (mb, type_from_handle);
9345 mono_mb_emit_ldarg (mb, 0);
9347 /* make the call to CanCastTo (type, ob) */
9348 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9349 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9350 g_assert (can_cast_to);
9351 mono_method_desc_free (desc);
9352 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9354 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9356 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9357 mono_mb_emit_ptr (mb, &klass->byval_arg);
9358 mono_mb_emit_icall (mb, type_from_handle);
9359 mono_mb_emit_ldarg (mb, 0);
9361 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9362 emit_thread_interrupt_checkpoint (mb);
9364 mono_mb_emit_ldarg (mb, 0);
9365 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9369 mono_mb_patch_branch (mb, pos_failed);
9370 mono_mb_emit_byte (mb, CEE_LDNULL);
9374 mono_mb_patch_branch (mb, pos_end);
9375 mono_mb_emit_byte (mb, CEE_RET);
9377 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9384 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9387 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9388 klass = mono_class_from_mono_type (rtype->type);
9389 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9393 * mono_marshal_get_struct_to_ptr:
9396 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9399 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9401 MonoMethodBuilder *mb;
9402 static MonoMethod *stoptr = NULL;
9405 g_assert (klass != NULL);
9407 mono_marshal_load_type_info (klass);
9409 if (klass->marshal_info->str_to_ptr)
9410 return klass->marshal_info->str_to_ptr;
9413 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9416 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9418 if (klass->blittable) {
9419 mono_mb_emit_byte (mb, CEE_LDARG_1);
9420 mono_mb_emit_byte (mb, CEE_LDARG_0);
9421 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9422 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9423 mono_mb_emit_byte (mb, CEE_PREFIX1);
9424 mono_mb_emit_byte (mb, CEE_CPBLK);
9427 /* allocate local 0 (pointer) src_ptr */
9428 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9429 /* allocate local 1 (pointer) dst_ptr */
9430 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9431 /* allocate local 2 (boolean) delete_old */
9432 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9433 mono_mb_emit_byte (mb, CEE_LDARG_2);
9434 mono_mb_emit_stloc (mb, 2);
9436 /* initialize src_ptr to point to the start of object data */
9437 mono_mb_emit_byte (mb, CEE_LDARG_0);
9438 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9439 mono_mb_emit_stloc (mb, 0);
9441 /* initialize dst_ptr */
9442 mono_mb_emit_byte (mb, CEE_LDARG_1);
9443 mono_mb_emit_stloc (mb, 1);
9445 emit_struct_conv (mb, klass, FALSE);
9448 mono_mb_emit_byte (mb, CEE_RET);
9450 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9453 klass->marshal_info->str_to_ptr = res;
9458 * mono_marshal_get_ptr_to_struct:
9461 * generates IL code for PtrToStructure (IntPtr src, object structure)
9464 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9466 MonoMethodBuilder *mb;
9467 static MonoMethodSignature *ptostr = NULL;
9470 g_assert (klass != NULL);
9472 mono_marshal_load_type_info (klass);
9474 if (klass->marshal_info->ptr_to_str)
9475 return klass->marshal_info->ptr_to_str;
9478 MonoMethodSignature *sig;
9480 /* Create the signature corresponding to
9481 static void PtrToStructure (IntPtr ptr, object structure);
9482 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9483 sig = mono_create_icall_signature ("void ptr object");
9484 sig = signature_dup (mono_defaults.corlib, sig);
9486 mono_memory_barrier ();
9490 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9492 if (klass->blittable) {
9493 mono_mb_emit_byte (mb, CEE_LDARG_1);
9494 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9495 mono_mb_emit_byte (mb, CEE_LDARG_0);
9496 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9497 mono_mb_emit_byte (mb, CEE_PREFIX1);
9498 mono_mb_emit_byte (mb, CEE_CPBLK);
9501 /* allocate local 0 (pointer) src_ptr */
9502 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9503 /* allocate local 1 (pointer) dst_ptr */
9504 mono_mb_add_local (mb, &klass->this_arg);
9506 /* initialize src_ptr to point to the start of object data */
9507 mono_mb_emit_byte (mb, CEE_LDARG_0);
9508 mono_mb_emit_stloc (mb, 0);
9510 /* initialize dst_ptr */
9511 mono_mb_emit_byte (mb, CEE_LDARG_1);
9512 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9513 mono_mb_emit_stloc (mb, 1);
9515 emit_struct_conv (mb, klass, TRUE);
9518 mono_mb_emit_byte (mb, CEE_RET);
9520 res = mono_mb_create_method (mb, ptostr, 0);
9523 klass->marshal_info->ptr_to_str = res;
9528 * generates IL code for the synchronized wrapper: the generated method
9529 * calls METHOD while locking 'this' or the parent type.
9532 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9534 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9535 MonoMethodSignature *sig;
9536 MonoExceptionClause *clause;
9537 MonoMethodBuilder *mb;
9540 int i, pos, this_local, ret_local = 0;
9544 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9547 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9548 if ((res = mono_marshal_find_in_cache (cache, method)))
9551 sig = signature_dup (method->klass->image, mono_method_signature (method));
9554 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9557 if (!MONO_TYPE_IS_VOID (sig->ret))
9558 ret_local = mono_mb_add_local (mb, sig->ret);
9560 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9561 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9562 /* This will throw the type load exception when the wrapper is compiled */
9563 mono_mb_emit_byte (mb, CEE_LDNULL);
9564 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9565 mono_mb_emit_byte (mb, CEE_POP);
9567 if (!MONO_TYPE_IS_VOID (sig->ret))
9568 mono_mb_emit_ldloc (mb, ret_local);
9569 mono_mb_emit_byte (mb, CEE_RET);
9571 res = mono_mb_create_and_cache (cache, method,
9572 mb, sig, sig->param_count + 16);
9579 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9581 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9582 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9584 mono_loader_lock ();
9586 if (!enter_method) {
9587 MonoMethodDesc *desc;
9589 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9590 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9591 g_assert (enter_method);
9592 mono_method_desc_free (desc);
9594 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9595 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9596 g_assert (exit_method);
9597 mono_method_desc_free (desc);
9599 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9600 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9601 g_assert (gettypefromhandle_method);
9602 mono_method_desc_free (desc);
9605 mono_loader_unlock ();
9607 /* Push this or the type object */
9608 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9609 /* We have special handling for this in the JIT */
9610 int index = mono_mb_add_data (mb, method->klass);
9611 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9612 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9613 mono_mb_emit_i4 (mb, index);
9615 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9618 mono_mb_emit_ldarg (mb, 0);
9619 mono_mb_emit_stloc (mb, this_local);
9621 /* Call Monitor::Enter() */
9622 mono_mb_emit_ldloc (mb, this_local);
9623 mono_mb_emit_managed_call (mb, enter_method, NULL);
9625 clause->try_offset = mono_mb_get_label (mb);
9627 /* Call the method */
9629 mono_mb_emit_ldarg (mb, 0);
9630 for (i = 0; i < sig->param_count; i++)
9631 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9633 mono_mb_emit_managed_call (mb, method, NULL);
9635 if (!MONO_TYPE_IS_VOID (sig->ret))
9636 mono_mb_emit_stloc (mb, ret_local);
9638 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9640 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9641 clause->handler_offset = mono_mb_get_label (mb);
9643 /* Call Monitor::Exit() */
9644 mono_mb_emit_ldloc (mb, this_local);
9645 mono_mb_emit_managed_call (mb, exit_method, NULL);
9646 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9648 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9650 mono_mb_patch_branch (mb, pos);
9651 if (!MONO_TYPE_IS_VOID (sig->ret))
9652 mono_mb_emit_ldloc (mb, ret_local);
9653 mono_mb_emit_byte (mb, CEE_RET);
9655 mono_mb_set_clauses (mb, 1, clause);
9657 res = mono_mb_create_and_cache (cache, method,
9658 mb, sig, sig->param_count + 16);
9666 * the returned method calls 'method' unboxing the this argument
9669 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9671 MonoMethodSignature *sig = mono_method_signature (method);
9673 MonoMethodBuilder *mb;
9677 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9678 if ((res = mono_marshal_find_in_cache (cache, method)))
9681 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9683 g_assert (sig->hasthis);
9685 mono_mb_emit_ldarg (mb, 0);
9686 mono_mb_emit_icon (mb, sizeof (MonoObject));
9687 mono_mb_emit_byte (mb, CEE_ADD);
9688 for (i = 0; i < sig->param_count; ++i)
9689 mono_mb_emit_ldarg (mb, i + 1);
9690 mono_mb_emit_managed_call (mb, method, NULL);
9691 mono_mb_emit_byte (mb, CEE_RET);
9693 res = mono_mb_create_and_cache (cache, method,
9694 mb, sig, sig->param_count + 16);
9697 /* code_for (res); */
9703 STELEMREF_OBJECT, /*no check at all*/
9704 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9705 STELEMREF_CLASS, /*only the klass->parents check*/
9706 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9707 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9708 STELEMREF_KIND_COUNT
9711 static const char *strelemref_wrapper_name[] = {
9712 "object", "sealed_class", "class", "interface", "complex"
9716 is_monomorphic_array (MonoClass *klass)
9718 MonoClass *element_class;
9719 if (klass->rank != 1)
9722 element_class = klass->element_class;
9723 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9727 get_virtual_stelemref_kind (MonoClass *element_class)
9729 if (element_class == mono_defaults.object_class)
9730 return STELEMREF_OBJECT;
9731 if (is_monomorphic_array (element_class))
9732 return STELEMREF_SEALED_CLASS;
9733 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9734 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9735 #ifdef COMPRESSED_INTERFACE_BITMAP
9736 return STELEMREF_COMPLEX;
9738 return STELEMREF_INTERFACE;
9740 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9741 if (element_class->marshalbyref || element_class->rank || mono_class_has_variant_generic_params (element_class))
9742 return STELEMREF_COMPLEX;
9743 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9744 return STELEMREF_SEALED_CLASS;
9745 return STELEMREF_CLASS;
9749 load_array_element_address (MonoMethodBuilder *mb)
9751 mono_mb_emit_ldarg (mb, 0);
9752 mono_mb_emit_ldarg (mb, 1);
9753 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9757 load_array_class (MonoMethodBuilder *mb, int aklass)
9759 mono_mb_emit_ldarg (mb, 0);
9760 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9761 mono_mb_emit_byte (mb, CEE_LDIND_I);
9762 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9763 mono_mb_emit_byte (mb, CEE_LDIND_I);
9764 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9765 mono_mb_emit_byte (mb, CEE_LDIND_I);
9766 mono_mb_emit_stloc (mb, aklass);
9770 load_value_class (MonoMethodBuilder *mb, int vklass)
9772 mono_mb_emit_ldarg (mb, 2);
9773 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9774 mono_mb_emit_byte (mb, CEE_LDIND_I);
9775 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9776 mono_mb_emit_byte (mb, CEE_LDIND_I);
9777 mono_mb_emit_stloc (mb, vklass);
9782 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9784 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9785 printf ("slow vstore of %s\n", name);
9791 * The wrapper info for the wrapper contains the wrapper 'kind' + 1.
9794 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9795 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9796 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9797 * - Add a case for arrays of arrays.
9800 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9802 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9803 static MonoMethodSignature *signature;
9804 MonoMethodBuilder *mb;
9808 const char *param_names [16];
9810 int aklass, vklass, vtable, uiid;
9811 int array_slot_addr;
9813 g_assert (array_class->rank == 1);
9814 kind = get_virtual_stelemref_kind (array_class->element_class);
9816 if (cached_methods [kind])
9817 return cached_methods [kind];
9819 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9820 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9823 param_names [0] = "index";
9824 param_names [1] = "value";
9825 mono_mb_set_param_names (mb, param_names);
9828 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9830 /* void this::stelemref (size_t idx, void* value) */
9831 sig->ret = &mono_defaults.void_class->byval_arg;
9832 sig->hasthis = TRUE;
9833 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9834 sig->params [1] = &mono_defaults.object_class->byval_arg;
9838 /*For now simply call plain old stelemref*/
9840 case STELEMREF_OBJECT:
9841 /* ldelema (implicit bound check) */
9842 load_array_element_address (mb);
9844 mono_mb_emit_ldarg (mb, 2);
9845 mono_mb_emit_byte (mb, CEE_STIND_REF);
9846 mono_mb_emit_byte (mb, CEE_RET);
9849 case STELEMREF_COMPLEX:
9851 <ldelema (bound check)>
9854 if (!mono_object_isinst (value, aklass))
9858 *array_slot_addr = value;
9861 throw new ArrayTypeMismatchException ();
9864 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9865 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9869 /*Use this to debug/record stores that are going thru the slow path*/
9870 MonoMethodSignature *csig;
9871 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9872 csig->ret = &mono_defaults.void_class->byval_arg;
9873 csig->params [0] = &mono_defaults.object_class->byval_arg;
9874 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9875 csig->params [2] = &mono_defaults.object_class->byval_arg;
9876 mono_mb_emit_ldarg (mb, 0);
9877 mono_mb_emit_ldarg (mb, 1);
9878 mono_mb_emit_ldarg (mb, 2);
9879 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9883 /* ldelema (implicit bound check) */
9884 load_array_element_address (mb);
9885 mono_mb_emit_stloc (mb, array_slot_addr);
9887 /* if (!value) goto do_store */
9888 mono_mb_emit_ldarg (mb, 2);
9889 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9891 /* aklass = array->vtable->klass->element_class */
9892 load_array_class (mb, aklass);
9894 /*if (mono_object_isinst (value, aklass)) */
9895 mono_mb_emit_ldarg (mb, 2);
9896 mono_mb_emit_ldloc (mb, aklass);
9897 mono_mb_emit_icall (mb, mono_object_isinst);
9898 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9901 mono_mb_patch_branch (mb, b1);
9902 mono_mb_emit_ldloc (mb, array_slot_addr);
9903 mono_mb_emit_ldarg (mb, 2);
9904 mono_mb_emit_byte (mb, CEE_STIND_REF);
9905 mono_mb_emit_byte (mb, CEE_RET);
9908 mono_mb_patch_branch (mb, b2);
9910 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9913 case STELEMREF_SEALED_CLASS:
9915 <ldelema (bound check)>
9919 aklass = array->vtable->klass->element_class;
9920 vklass = value->vtable->klass;
9922 if (vklass != aklass)
9926 *array_slot_addr = value;
9929 throw new ArrayTypeMismatchException ();
9931 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9932 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9933 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9936 /* ldelema (implicit bound check) */
9937 load_array_element_address (mb);
9938 mono_mb_emit_stloc (mb, array_slot_addr);
9940 /* if (!value) goto do_store */
9941 mono_mb_emit_ldarg (mb, 2);
9942 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9944 /* aklass = array->vtable->klass->element_class */
9945 load_array_class (mb, aklass);
9947 /* vklass = value->vtable->klass */
9948 load_value_class (mb, vklass);
9950 /*if (vklass != aklass) goto do_exception; */
9951 mono_mb_emit_ldloc (mb, aklass);
9952 mono_mb_emit_ldloc (mb, vklass);
9953 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9956 mono_mb_patch_branch (mb, b1);
9957 mono_mb_emit_ldloc (mb, array_slot_addr);
9958 mono_mb_emit_ldarg (mb, 2);
9959 mono_mb_emit_byte (mb, CEE_STIND_REF);
9960 mono_mb_emit_byte (mb, CEE_RET);
9963 mono_mb_patch_branch (mb, b2);
9964 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9967 case STELEMREF_CLASS:
9970 <ldelema (bound check)>
9974 aklass = array->vtable->klass->element_class;
9975 vklass = value->vtable->klass;
9977 if (vklass->idepth < aklass->idepth)
9980 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9984 *array_slot_addr = value;
9988 throw new ArrayTypeMismatchException ();
9990 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9991 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9992 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9994 /* ldelema (implicit bound check) */
9995 load_array_element_address (mb);
9996 mono_mb_emit_stloc (mb, array_slot_addr);
9998 /* if (!value) goto do_store */
9999 mono_mb_emit_ldarg (mb, 2);
10000 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10002 /* aklass = array->vtable->klass->element_class */
10003 load_array_class (mb, aklass);
10005 /* vklass = value->vtable->klass */
10006 load_value_class (mb, vklass);
10008 /*if (mono_object_isinst (value, aklass)) */
10009 mono_mb_emit_ldarg (mb, 2);
10010 mono_mb_emit_ldloc (mb, aklass);
10011 mono_mb_emit_icall (mb, mono_object_isinst);
10012 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10014 /* if (vklass->idepth < aklass->idepth) goto failue */
10015 mono_mb_emit_ldloc (mb, vklass);
10016 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10017 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10019 mono_mb_emit_ldloc (mb, aklass);
10020 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10021 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10023 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10025 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10026 mono_mb_emit_ldloc (mb, vklass);
10027 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10028 mono_mb_emit_byte (mb, CEE_LDIND_I);
10030 mono_mb_emit_ldloc (mb, aklass);
10031 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10032 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10033 mono_mb_emit_icon (mb, 1);
10034 mono_mb_emit_byte (mb, CEE_SUB);
10035 mono_mb_emit_icon (mb, sizeof (void*));
10036 mono_mb_emit_byte (mb, CEE_MUL);
10037 mono_mb_emit_byte (mb, CEE_ADD);
10038 mono_mb_emit_byte (mb, CEE_LDIND_I);
10040 mono_mb_emit_ldloc (mb, aklass);
10041 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10044 mono_mb_patch_branch (mb, b1);
10045 mono_mb_emit_ldloc (mb, array_slot_addr);
10046 mono_mb_emit_ldarg (mb, 2);
10047 mono_mb_emit_byte (mb, CEE_STIND_REF);
10048 mono_mb_emit_byte (mb, CEE_RET);
10050 /* do_exception: */
10051 mono_mb_patch_branch (mb, b2);
10052 mono_mb_patch_branch (mb, b3);
10054 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10057 case STELEMREF_INTERFACE:
10064 klass = array->obj.vtable->klass->element_class;
10065 vt = value->vtable;
10066 uiid = klass->interface_id;
10067 if (uiid > vt->max_interface_id)
10069 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10072 mono_array_setref (array, index, value);
10075 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10077 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10078 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10079 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10080 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10082 /* ldelema (implicit bound check) */
10083 load_array_element_address (mb);
10084 mono_mb_emit_stloc (mb, array_slot_addr);
10086 /* if (!value) goto do_store */
10087 mono_mb_emit_ldarg (mb, 2);
10088 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10090 /* klass = array->vtable->klass->element_class */
10091 load_array_class (mb, aklass);
10093 /* vt = value->vtable */
10094 mono_mb_emit_ldarg (mb, 2);
10095 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10096 mono_mb_emit_byte (mb, CEE_LDIND_I);
10097 mono_mb_emit_stloc (mb, vtable);
10099 /* uiid = klass->interface_id; */
10100 mono_mb_emit_ldloc (mb, aklass);
10101 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10102 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10103 mono_mb_emit_stloc (mb, uiid);
10105 /*if (uiid > vt->max_interface_id)*/
10106 mono_mb_emit_ldloc (mb, uiid);
10107 mono_mb_emit_ldloc (mb, vtable);
10108 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10109 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10110 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10112 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10114 /*vt->interface_bitmap*/
10115 mono_mb_emit_ldloc (mb, vtable);
10116 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10117 mono_mb_emit_byte (mb, CEE_LDIND_I);
10120 mono_mb_emit_ldloc (mb, uiid);
10121 mono_mb_emit_icon (mb, 3);
10122 mono_mb_emit_byte (mb, CEE_SHR_UN);
10124 /*vt->interface_bitmap [(uiid) >> 3]*/
10125 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10126 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10128 /*(1 << ((uiid)&7)))*/
10129 mono_mb_emit_icon (mb, 1);
10130 mono_mb_emit_ldloc (mb, uiid);
10131 mono_mb_emit_icon (mb, 7);
10132 mono_mb_emit_byte (mb, CEE_AND);
10133 mono_mb_emit_byte (mb, CEE_SHL);
10135 /*bitwise and the whole thing*/
10136 mono_mb_emit_byte (mb, CEE_AND);
10137 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10140 mono_mb_patch_branch (mb, b1);
10141 mono_mb_emit_ldloc (mb, array_slot_addr);
10142 mono_mb_emit_ldarg (mb, 2);
10143 mono_mb_emit_byte (mb, CEE_STIND_REF);
10144 mono_mb_emit_byte (mb, CEE_RET);
10146 /* do_exception: */
10147 mono_mb_patch_branch (mb, b2);
10148 mono_mb_patch_branch (mb, b3);
10149 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10153 mono_mb_emit_ldarg (mb, 0);
10154 mono_mb_emit_ldarg (mb, 1);
10155 mono_mb_emit_ldarg (mb, 2);
10156 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10157 mono_mb_emit_byte (mb, CEE_RET);
10161 res = mono_mb_create_method (mb, signature, 4);
10162 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10163 mono_marshal_set_wrapper_info (res, GUINT_TO_POINTER (kind + 1));
10165 mono_marshal_lock ();
10166 if (!cached_methods [kind]) {
10167 cached_methods [kind] = res;
10168 mono_marshal_unlock ();
10170 mono_marshal_unlock ();
10171 mono_free_method (res);
10175 return cached_methods [kind];
10179 mono_marshal_get_stelemref ()
10181 static MonoMethod* ret = NULL;
10182 MonoMethodSignature *sig;
10183 MonoMethodBuilder *mb;
10185 guint32 b1, b2, b3, b4;
10187 int aklass, vklass;
10188 int array_slot_addr;
10193 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10196 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10198 /* void stelemref (void* array, int idx, void* value) */
10199 sig->ret = &mono_defaults.void_class->byval_arg;
10200 sig->params [0] = &mono_defaults.object_class->byval_arg;
10201 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10202 sig->params [2] = &mono_defaults.object_class->byval_arg;
10204 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10205 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10206 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10210 <ldelema (bound check)>
10214 aklass = array->vtable->klass->element_class;
10215 vklass = value->vtable->klass;
10217 if (vklass->idepth < aklass->idepth)
10220 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10224 *array_slot_addr = value;
10228 if (mono_object_isinst (value, aklass))
10231 throw new ArrayTypeMismatchException ();
10234 /* ldelema (implicit bound check) */
10235 mono_mb_emit_ldarg (mb, 0);
10236 mono_mb_emit_ldarg (mb, 1);
10237 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10238 mono_mb_emit_stloc (mb, array_slot_addr);
10240 /* if (!value) goto do_store */
10241 mono_mb_emit_ldarg (mb, 2);
10242 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10244 /* aklass = array->vtable->klass->element_class */
10245 mono_mb_emit_ldarg (mb, 0);
10246 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10247 mono_mb_emit_byte (mb, CEE_LDIND_I);
10248 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10249 mono_mb_emit_byte (mb, CEE_LDIND_I);
10250 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10251 mono_mb_emit_byte (mb, CEE_LDIND_I);
10252 mono_mb_emit_stloc (mb, aklass);
10254 /* vklass = value->vtable->klass */
10255 mono_mb_emit_ldarg (mb, 2);
10256 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10257 mono_mb_emit_byte (mb, CEE_LDIND_I);
10258 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10259 mono_mb_emit_byte (mb, CEE_LDIND_I);
10260 mono_mb_emit_stloc (mb, vklass);
10262 /* if (vklass->idepth < aklass->idepth) goto failue */
10263 mono_mb_emit_ldloc (mb, vklass);
10264 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10265 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10267 mono_mb_emit_ldloc (mb, aklass);
10268 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10269 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10271 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10273 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10274 mono_mb_emit_ldloc (mb, vklass);
10275 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10276 mono_mb_emit_byte (mb, CEE_LDIND_I);
10278 mono_mb_emit_ldloc (mb, aklass);
10279 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10280 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10281 mono_mb_emit_icon (mb, 1);
10282 mono_mb_emit_byte (mb, CEE_SUB);
10283 mono_mb_emit_icon (mb, sizeof (void*));
10284 mono_mb_emit_byte (mb, CEE_MUL);
10285 mono_mb_emit_byte (mb, CEE_ADD);
10286 mono_mb_emit_byte (mb, CEE_LDIND_I);
10288 mono_mb_emit_ldloc (mb, aklass);
10290 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10292 copy_pos = mono_mb_get_label (mb);
10294 mono_mb_patch_branch (mb, b1);
10295 mono_mb_emit_ldloc (mb, array_slot_addr);
10296 mono_mb_emit_ldarg (mb, 2);
10297 mono_mb_emit_byte (mb, CEE_STIND_REF);
10299 mono_mb_emit_byte (mb, CEE_RET);
10302 mono_mb_patch_branch (mb, b2);
10303 mono_mb_patch_branch (mb, b3);
10305 mono_mb_emit_ldarg (mb, 2);
10306 mono_mb_emit_ldloc (mb, aklass);
10307 mono_mb_emit_icall (mb, mono_object_isinst);
10309 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10310 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10311 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10313 mono_mb_emit_byte (mb, CEE_RET);
10314 ret = mono_mb_create_method (mb, sig, 4);
10322 MonoMethod *method;
10325 /* LOCKING: vars accessed under the marshal lock */
10326 static ArrayElemAddr *elem_addr_cache = NULL;
10327 static int elem_addr_cache_size = 0;
10328 static int elem_addr_cache_next = 0;
10331 * mono_marshal_get_array_address:
10332 * @rank: rank of the array type
10333 * @elem_size: size in bytes of an element of an array.
10335 * Returns a MonoMethd that implements the code to get the address
10336 * of an element in a multi-dimenasional array of @rank dimensions.
10337 * The returned method takes an array as the first argument and then
10338 * @rank indexes for the @rank dimensions.
10341 mono_marshal_get_array_address (int rank, int elem_size)
10344 MonoMethodBuilder *mb;
10345 MonoMethodSignature *sig;
10346 int i, bounds, ind, realidx;
10347 int branch_pos, *branch_positions;
10351 mono_marshal_lock ();
10352 for (i = 0; i < elem_addr_cache_next; ++i) {
10353 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10354 ret = elem_addr_cache [i].method;
10358 mono_marshal_unlock ();
10362 branch_positions = g_new0 (int, rank);
10364 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10366 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10367 sig->ret = &mono_defaults.int_class->byval_arg;
10368 sig->params [0] = &mono_defaults.object_class->byval_arg;
10369 for (i = 0; i < rank; ++i) {
10370 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10373 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10375 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10376 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10377 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10379 /* bounds = array->bounds; */
10380 mono_mb_emit_ldarg (mb, 0);
10381 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10382 mono_mb_emit_byte (mb, CEE_LDIND_I);
10383 mono_mb_emit_stloc (mb, bounds);
10385 /* ind is the overall element index, realidx is the partial index in a single dimension */
10386 /* ind = idx0 - bounds [0].lower_bound */
10387 mono_mb_emit_ldarg (mb, 1);
10388 mono_mb_emit_ldloc (mb, bounds);
10389 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10390 mono_mb_emit_byte (mb, CEE_ADD);
10391 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10392 mono_mb_emit_byte (mb, CEE_SUB);
10393 mono_mb_emit_stloc (mb, ind);
10394 /* if (ind >= bounds [0].length) goto exeception; */
10395 mono_mb_emit_ldloc (mb, ind);
10396 mono_mb_emit_ldloc (mb, bounds);
10397 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10398 mono_mb_emit_byte (mb, CEE_ADD);
10399 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10400 /* note that we use unsigned comparison */
10401 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10403 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10404 * We could also decide to ignore the passed elem_size and get it
10405 * from the array object, to reduce the number of methods we generate:
10406 * the additional cost is 3 memory loads and a non-immediate mul.
10408 for (i = 1; i < rank; ++i) {
10409 /* realidx = idxi - bounds [i].lower_bound */
10410 mono_mb_emit_ldarg (mb, 1 + i);
10411 mono_mb_emit_ldloc (mb, bounds);
10412 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10413 mono_mb_emit_byte (mb, CEE_ADD);
10414 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10415 mono_mb_emit_byte (mb, CEE_SUB);
10416 mono_mb_emit_stloc (mb, realidx);
10417 /* if (realidx >= bounds [i].length) goto exeception; */
10418 mono_mb_emit_ldloc (mb, realidx);
10419 mono_mb_emit_ldloc (mb, bounds);
10420 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10421 mono_mb_emit_byte (mb, CEE_ADD);
10422 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10423 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10424 /* ind = ind * bounds [i].length + realidx */
10425 mono_mb_emit_ldloc (mb, ind);
10426 mono_mb_emit_ldloc (mb, bounds);
10427 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10428 mono_mb_emit_byte (mb, CEE_ADD);
10429 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10430 mono_mb_emit_byte (mb, CEE_MUL);
10431 mono_mb_emit_ldloc (mb, realidx);
10432 mono_mb_emit_byte (mb, CEE_ADD);
10433 mono_mb_emit_stloc (mb, ind);
10436 /* return array->vector + ind * element_size */
10437 mono_mb_emit_ldarg (mb, 0);
10438 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10439 mono_mb_emit_ldloc (mb, ind);
10440 mono_mb_emit_icon (mb, elem_size);
10441 mono_mb_emit_byte (mb, CEE_MUL);
10442 mono_mb_emit_byte (mb, CEE_ADD);
10443 mono_mb_emit_byte (mb, CEE_RET);
10445 /* patch the branches to get here and throw */
10446 for (i = 1; i < rank; ++i) {
10447 mono_mb_patch_branch (mb, branch_positions [i]);
10449 mono_mb_patch_branch (mb, branch_pos);
10450 /* throw exception */
10451 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10453 g_free (branch_positions);
10454 ret = mono_mb_create_method (mb, sig, 4);
10457 /* cache the result */
10459 mono_marshal_lock ();
10460 for (i = 0; i < elem_addr_cache_next; ++i) {
10461 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10462 /* FIXME: free ret */
10463 ret = elem_addr_cache [i].method;
10469 ElementAddrWrapperInfo *info;
10471 if (elem_addr_cache_next >= elem_addr_cache_size) {
10472 int new_size = elem_addr_cache_size + 4;
10473 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10474 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10475 g_free (elem_addr_cache);
10476 elem_addr_cache = new_array;
10477 elem_addr_cache_size = new_size;
10479 elem_addr_cache [elem_addr_cache_next].rank = rank;
10480 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10481 elem_addr_cache [elem_addr_cache_next].method = ret;
10482 elem_addr_cache_next ++;
10484 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
10486 info->elem_size = elem_size;
10488 mono_marshal_set_wrapper_info (ret, info);
10490 mono_marshal_unlock ();
10495 mono_marshal_alloc (gulong size)
10500 res = CoTaskMemAlloc (size);
10502 res = g_try_malloc ((gulong)size);
10504 mono_gc_out_of_memory ((gulong)size);
10510 mono_marshal_free (gpointer ptr)
10513 CoTaskMemFree (ptr);
10520 mono_marshal_free_array (gpointer *ptr, int size)
10527 for (i = 0; i < size; i++)
10533 mono_marshal_string_to_utf16 (MonoString *s)
10535 return s ? mono_string_chars (s) : NULL;
10539 mono_marshal_string_to_utf16_copy (MonoString *s)
10544 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10545 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10546 res [mono_string_length (s)] = 0;
10552 * mono_marshal_set_last_error:
10554 * This function is invoked to set the last error value from a P/Invoke call
10555 * which has SetLastError set.
10558 mono_marshal_set_last_error (void)
10561 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10563 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10568 mono_marshal_set_last_error_windows (int error)
10571 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10576 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10577 gpointer dest, gint32 length)
10582 MONO_ARCH_SAVE_REGS;
10584 MONO_CHECK_ARG_NULL (src);
10585 MONO_CHECK_ARG_NULL (dest);
10587 if (src->obj.vtable->klass->rank != 1)
10588 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10589 if (start_index < 0)
10590 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10592 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10593 if (start_index + length > mono_array_length (src))
10594 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10596 element_size = mono_array_element_size (src->obj.vtable->klass);
10598 /* no references should be involved */
10599 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10601 memcpy (dest, source_addr, length * element_size);
10605 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10606 MonoArray *dest, gint32 length)
10611 MONO_ARCH_SAVE_REGS;
10613 MONO_CHECK_ARG_NULL (src);
10614 MONO_CHECK_ARG_NULL (dest);
10616 if (dest->obj.vtable->klass->rank != 1)
10617 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10618 if (start_index < 0)
10619 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10621 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10622 if (start_index + length > mono_array_length (dest))
10623 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10625 element_size = mono_array_element_size (dest->obj.vtable->klass);
10627 /* no references should be involved */
10628 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10630 memcpy (dest_addr, src, length * element_size);
10633 #if NO_UNALIGNED_ACCESS
10634 #define RETURN_UNALIGNED(type, addr) \
10637 memcpy(&val, p + offset, sizeof(val)); \
10640 #define WRITE_UNALIGNED(type, addr, val) \
10641 memcpy(addr, &val, sizeof(type))
10643 #define RETURN_UNALIGNED(type, addr) \
10644 return *(type*)(p + offset);
10645 #define WRITE_UNALIGNED(type, addr, val) \
10646 (*(type *)(addr) = (val))
10650 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10654 MONO_ARCH_SAVE_REGS;
10656 RETURN_UNALIGNED(gpointer, p + offset);
10660 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10664 MONO_ARCH_SAVE_REGS;
10666 return *(unsigned char*)(p + offset);
10670 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10674 MONO_ARCH_SAVE_REGS;
10676 RETURN_UNALIGNED(gint16, p + offset);
10680 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10684 MONO_ARCH_SAVE_REGS;
10686 RETURN_UNALIGNED(gint32, p + offset);
10690 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10694 MONO_ARCH_SAVE_REGS;
10696 RETURN_UNALIGNED(gint64, p + offset);
10700 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10704 MONO_ARCH_SAVE_REGS;
10706 *(unsigned char*)(p + offset) = val;
10710 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10714 MONO_ARCH_SAVE_REGS;
10716 WRITE_UNALIGNED(gpointer, p + offset, val);
10720 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10724 MONO_ARCH_SAVE_REGS;
10726 WRITE_UNALIGNED(gint16, p + offset, val);
10730 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10734 MONO_ARCH_SAVE_REGS;
10736 WRITE_UNALIGNED(gint32, p + offset, val);
10740 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10744 MONO_ARCH_SAVE_REGS;
10746 WRITE_UNALIGNED(gint64, p + offset, val);
10750 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10752 MONO_ARCH_SAVE_REGS;
10757 return mono_string_new (mono_domain_get (), ptr);
10761 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10763 MONO_ARCH_SAVE_REGS;
10766 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10767 g_assert_not_reached ();
10770 return mono_string_new_len (mono_domain_get (), ptr, len);
10775 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10777 MonoDomain *domain = mono_domain_get ();
10781 MONO_ARCH_SAVE_REGS;
10789 return mono_string_new_utf16 (domain, ptr, len);
10793 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10795 MonoDomain *domain = mono_domain_get ();
10797 MONO_ARCH_SAVE_REGS;
10800 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10801 g_assert_not_reached ();
10804 return mono_string_new_utf16 (domain, ptr, len);
10809 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10811 MONO_ARCH_SAVE_REGS;
10813 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10817 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10823 MONO_ARCH_SAVE_REGS;
10825 MONO_CHECK_ARG_NULL (rtype);
10827 type = rtype->type;
10828 klass = mono_class_from_mono_type (type);
10829 if (!mono_class_init (klass))
10830 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10832 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10834 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10836 MonoException *exc;
10838 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10839 exc = mono_get_exception_argument ("t", msg);
10841 mono_raise_exception (exc);
10845 return mono_class_native_size (klass, NULL);
10849 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10851 MonoMethod *method;
10854 MONO_ARCH_SAVE_REGS;
10856 MONO_CHECK_ARG_NULL (obj);
10857 MONO_CHECK_ARG_NULL (dst);
10859 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10863 pa [2] = &delete_old;
10865 mono_runtime_invoke (method, NULL, pa, NULL);
10869 ptr_to_structure (gpointer src, MonoObject *dst)
10871 MonoMethod *method;
10874 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10879 mono_runtime_invoke (method, NULL, pa, NULL);
10883 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10887 MONO_ARCH_SAVE_REGS;
10889 MONO_CHECK_ARG_NULL (src);
10890 MONO_CHECK_ARG_NULL (dst);
10892 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10894 if (t->type == MONO_TYPE_VALUETYPE) {
10895 MonoException *exc;
10898 tmp = g_strdup_printf ("Destination is a boxed value type.");
10899 exc = mono_get_exception_argument ("dst", tmp);
10902 mono_raise_exception (exc);
10906 ptr_to_structure (src, dst);
10910 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10913 MonoDomain *domain = mono_domain_get ();
10916 MONO_ARCH_SAVE_REGS;
10918 MONO_CHECK_ARG_NULL (src);
10919 MONO_CHECK_ARG_NULL (type);
10921 klass = mono_class_from_mono_type (type->type);
10922 if (!mono_class_init (klass))
10923 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10925 res = mono_object_new (domain, klass);
10927 ptr_to_structure (src, res);
10933 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10935 MonoMarshalType *info;
10938 int match_index = -1;
10940 MONO_ARCH_SAVE_REGS;
10942 MONO_CHECK_ARG_NULL (type);
10943 MONO_CHECK_ARG_NULL (field_name);
10945 fname = mono_string_to_utf8 (field_name);
10946 klass = mono_class_from_mono_type (type->type);
10947 if (!mono_class_init (klass))
10948 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10950 while (klass && match_index == -1) {
10951 MonoClassField* field;
10953 gpointer iter = NULL;
10954 while ((field = mono_class_get_fields (klass, &iter))) {
10955 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10957 if (!strcmp (fname, mono_field_get_name (field))) {
10964 if (match_index == -1)
10965 klass = klass->parent;
10970 if(match_index == -1) {
10971 MonoException* exc;
10974 /* Get back original class instance */
10975 klass = mono_class_from_mono_type (type->type);
10977 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10978 exc = mono_get_exception_argument ("fieldName", tmp);
10981 mono_raise_exception ((MonoException*)exc);
10984 info = mono_marshal_load_type_info (klass);
10985 return info->fields [match_index].offset;
10989 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10994 tres = mono_string_to_utf8 (string);
10998 len = strlen (tres) + 1;
10999 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11000 memcpy (ret, tres, len);
11005 return mono_string_to_utf8 (string);
11010 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11012 MONO_ARCH_SAVE_REGS;
11014 if (string == NULL)
11017 #ifdef TARGET_WIN32
11018 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11019 ((mono_string_length (string) + 1) * 2);
11021 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11023 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11024 res [mono_string_length (string)] = 0;
11030 mono_struct_delete_old (MonoClass *klass, char *ptr)
11032 MonoMarshalType *info;
11035 info = mono_marshal_load_type_info (klass);
11037 for (i = 0; i < info->num_fields; i++) {
11038 MonoMarshalNative ntype;
11039 MonoMarshalConv conv;
11040 MonoType *ftype = info->fields [i].field->type;
11043 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11046 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11047 klass->unicode, &conv);
11049 cpos = ptr + info->fields [i].offset;
11052 case MONO_MARSHAL_CONV_NONE:
11053 if (MONO_TYPE_ISSTRUCT (ftype)) {
11054 mono_struct_delete_old (ftype->data.klass, cpos);
11058 case MONO_MARSHAL_CONV_STR_LPWSTR:
11059 /* We assume this field points inside a MonoString */
11061 case MONO_MARSHAL_CONV_STR_LPTSTR:
11062 #ifdef TARGET_WIN32
11063 /* We assume this field points inside a MonoString
11067 case MONO_MARSHAL_CONV_STR_LPSTR:
11068 case MONO_MARSHAL_CONV_STR_BSTR:
11069 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11070 case MONO_MARSHAL_CONV_STR_TBSTR:
11071 mono_marshal_free (*(gpointer *)cpos);
11081 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11085 MONO_ARCH_SAVE_REGS;
11087 MONO_CHECK_ARG_NULL (src);
11088 MONO_CHECK_ARG_NULL (type);
11090 klass = mono_class_from_mono_type (type->type);
11091 if (!mono_class_init (klass))
11092 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11094 mono_struct_delete_old (klass, (char *)src);
11098 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11102 MONO_ARCH_SAVE_REGS;
11104 if ((gulong)size == 0)
11105 /* This returns a valid pointer for size 0 on MS.NET */
11109 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11111 res = g_try_malloc ((gulong)size);
11114 mono_gc_out_of_memory ((gulong)size);
11120 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11125 mono_gc_out_of_memory ((gulong)size);
11130 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11132 res = g_try_realloc (ptr, (gulong)size);
11135 mono_gc_out_of_memory ((gulong)size);
11141 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11143 MONO_ARCH_SAVE_REGS;
11153 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11155 MONO_ARCH_SAVE_REGS;
11158 return CoTaskMemAlloc (size);
11160 return g_try_malloc ((gulong)size);
11165 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11167 MONO_ARCH_SAVE_REGS;
11170 CoTaskMemFree (ptr);
11177 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11179 MONO_ARCH_SAVE_REGS;
11182 return CoTaskMemRealloc (ptr, size);
11184 return g_try_realloc (ptr, (gulong)size);
11189 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11191 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11195 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11197 MonoClass *klass = mono_type_get_class (type->type);
11198 if (!mono_class_init (klass))
11199 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11201 return mono_ftnptr_to_delegate (klass, ftn);
11205 * mono_marshal_is_loading_type_info:
11207 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11211 mono_marshal_is_loading_type_info (MonoClass *klass)
11213 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11215 return g_slist_find (loads_list, klass) != NULL;
11219 * mono_marshal_load_type_info:
11221 * Initialize klass->marshal_info using information from metadata. This function can
11222 * recursively call itself, and the caller is responsible to avoid that by calling
11223 * mono_marshal_is_loading_type_info () beforehand.
11225 * LOCKING: Acquires the loader lock.
11228 mono_marshal_load_type_info (MonoClass* klass)
11231 guint32 native_size = 0, min_align = 1, packing;
11232 MonoMarshalType *info;
11233 MonoClassField* field;
11236 GSList *loads_list;
11238 g_assert (klass != NULL);
11240 if (klass->marshal_info)
11241 return klass->marshal_info;
11243 if (!klass->inited)
11244 mono_class_init (klass);
11246 mono_loader_lock ();
11248 if (klass->marshal_info) {
11249 mono_loader_unlock ();
11250 return klass->marshal_info;
11254 * This function can recursively call itself, so we keep the list of classes which are
11255 * under initialization in a TLS list.
11257 g_assert (!mono_marshal_is_loading_type_info (klass));
11258 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11259 loads_list = g_slist_prepend (loads_list, klass);
11260 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11263 while ((field = mono_class_get_fields (klass, &iter))) {
11264 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11266 if (mono_field_is_deleted (field))
11271 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11273 /* The mempool is protected by the loader lock */
11274 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11275 info->num_fields = count;
11277 /* Try to find a size for this type in metadata */
11278 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11280 if (klass->parent) {
11281 int parent_size = mono_class_native_size (klass->parent, NULL);
11283 /* Add parent size to real size */
11284 native_size += parent_size;
11285 info->native_size = parent_size;
11288 packing = klass->packing_size ? klass->packing_size : 8;
11291 while ((field = mono_class_get_fields (klass, &iter))) {
11295 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11298 if (mono_field_is_deleted (field))
11300 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11301 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11302 NULL, NULL, &info->fields [j].mspec);
11304 info->fields [j].field = field;
11306 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11307 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11308 /* This field is a hack inserted by MCS to empty structures */
11313 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11314 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11315 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11316 &align, TRUE, klass->unicode);
11317 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11318 min_align = MAX (align, min_align);
11319 info->fields [j].offset = info->native_size;
11320 info->fields [j].offset += align - 1;
11321 info->fields [j].offset &= ~(align - 1);
11322 info->native_size = info->fields [j].offset + size;
11324 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11325 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11326 &align, TRUE, klass->unicode);
11327 min_align = packing;
11328 info->fields [j].offset = field->offset - sizeof (MonoObject);
11329 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11335 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11336 info->native_size = MAX (native_size, info->native_size);
11338 * If the provided Size is equal or larger than the calculated size, and there
11339 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11341 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
11342 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11346 if (info->native_size & (min_align - 1)) {
11347 info->native_size += min_align - 1;
11348 info->native_size &= ~(min_align - 1);
11351 info->min_align = min_align;
11353 /* Update the class's blittable info, if the layouts don't match */
11354 if (info->native_size != mono_class_value_size (klass, NULL))
11355 klass->blittable = FALSE;
11357 /* If this is an array type, ensure that we have element info */
11358 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11359 mono_marshal_load_type_info (klass->element_class);
11362 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11363 loads_list = g_slist_remove (loads_list, klass);
11364 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11366 /*We do double-checking locking on marshal_info */
11367 mono_memory_barrier ();
11369 klass->marshal_info = info;
11371 mono_loader_unlock ();
11373 return klass->marshal_info;
11377 * mono_class_native_size:
11380 * Returns: the native size of an object instance (when marshaled
11381 * to unmanaged code)
11384 mono_class_native_size (MonoClass *klass, guint32 *align)
11386 if (!klass->marshal_info) {
11387 if (mono_marshal_is_loading_type_info (klass)) {
11392 mono_marshal_load_type_info (klass);
11397 *align = klass->marshal_info->min_align;
11399 return klass->marshal_info->native_size;
11402 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11403 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11404 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11405 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11408 * mono_type_native_stack_size:
11409 * @t: the type to return the size it uses on the stack
11411 * Returns: the number of bytes required to hold an instance of this
11412 * type on the native stack
11415 mono_type_native_stack_size (MonoType *t, guint32 *align)
11419 g_assert (t != NULL);
11425 *align = sizeof (gpointer);
11426 return sizeof (gpointer);
11430 case MONO_TYPE_BOOLEAN:
11431 case MONO_TYPE_CHAR:
11442 case MONO_TYPE_STRING:
11443 case MONO_TYPE_OBJECT:
11444 case MONO_TYPE_CLASS:
11445 case MONO_TYPE_SZARRAY:
11446 case MONO_TYPE_PTR:
11447 case MONO_TYPE_FNPTR:
11448 case MONO_TYPE_ARRAY:
11449 *align = sizeof (gpointer);
11450 return sizeof (gpointer);
11455 *align = ALIGNMENT (gdouble);
11459 *align = ALIGNMENT (glong);
11461 case MONO_TYPE_GENERICINST:
11462 if (!mono_type_generic_inst_is_valuetype (t)) {
11463 *align = sizeof (gpointer);
11464 return sizeof (gpointer);
11467 case MONO_TYPE_TYPEDBYREF:
11468 case MONO_TYPE_VALUETYPE: {
11470 MonoClass *klass = mono_class_from_mono_type (t);
11472 if (klass->enumtype)
11473 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11475 size = mono_class_native_size (klass, align);
11476 *align = *align + 3;
11486 g_error ("type 0x%02x unknown", t->type);
11492 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11493 gboolean as_field, gboolean unicode)
11495 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11498 switch (native_type) {
11499 case MONO_NATIVE_BOOLEAN:
11502 case MONO_NATIVE_I1:
11503 case MONO_NATIVE_U1:
11506 case MONO_NATIVE_I2:
11507 case MONO_NATIVE_U2:
11508 case MONO_NATIVE_VARIANTBOOL:
11511 case MONO_NATIVE_I4:
11512 case MONO_NATIVE_U4:
11513 case MONO_NATIVE_ERROR:
11516 case MONO_NATIVE_I8:
11517 case MONO_NATIVE_U8:
11518 *align = ALIGNMENT(guint64);
11520 case MONO_NATIVE_R4:
11523 case MONO_NATIVE_R8:
11524 *align = ALIGNMENT(double);
11526 case MONO_NATIVE_INT:
11527 case MONO_NATIVE_UINT:
11528 case MONO_NATIVE_LPSTR:
11529 case MONO_NATIVE_LPWSTR:
11530 case MONO_NATIVE_LPTSTR:
11531 case MONO_NATIVE_BSTR:
11532 case MONO_NATIVE_ANSIBSTR:
11533 case MONO_NATIVE_TBSTR:
11534 case MONO_NATIVE_LPARRAY:
11535 case MONO_NATIVE_SAFEARRAY:
11536 case MONO_NATIVE_IUNKNOWN:
11537 case MONO_NATIVE_IDISPATCH:
11538 case MONO_NATIVE_INTERFACE:
11539 case MONO_NATIVE_ASANY:
11540 case MONO_NATIVE_FUNC:
11541 case MONO_NATIVE_LPSTRUCT:
11542 *align = ALIGNMENT(gpointer);
11543 return sizeof (gpointer);
11544 case MONO_NATIVE_STRUCT:
11545 klass = mono_class_from_mono_type (type);
11546 if (klass == mono_defaults.object_class &&
11547 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11551 return mono_class_native_size (klass, align);
11552 case MONO_NATIVE_BYVALTSTR: {
11553 int esize = unicode ? 2: 1;
11556 return mspec->data.array_data.num_elem * esize;
11558 case MONO_NATIVE_BYVALARRAY: {
11559 // FIXME: Have to consider ArraySubType
11561 klass = mono_class_from_mono_type (type);
11562 if (klass->element_class == mono_defaults.char_class) {
11563 esize = unicode ? 2 : 1;
11566 esize = mono_class_native_size (klass->element_class, align);
11569 return mspec->data.array_data.num_elem * esize;
11571 case MONO_NATIVE_CUSTOM:
11572 *align = sizeof (gpointer);
11573 return sizeof (gpointer);
11575 case MONO_NATIVE_CURRENCY:
11576 case MONO_NATIVE_VBBYREFSTR:
11578 g_error ("native type %02x not implemented", native_type);
11581 g_assert_not_reached ();
11586 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11594 t = &o->vtable->klass->byval_arg;
11598 case MONO_TYPE_PTR:
11601 case MONO_TYPE_BOOLEAN:
11604 case MONO_TYPE_CHAR:
11609 return mono_object_unbox (o);
11611 case MONO_TYPE_STRING:
11612 switch (string_encoding) {
11613 case MONO_NATIVE_LPWSTR:
11614 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11616 case MONO_NATIVE_LPSTR:
11617 return mono_string_to_lpstr ((MonoString*)o);
11620 g_warning ("marshaling conversion %d not implemented", string_encoding);
11621 g_assert_not_reached ();
11624 case MONO_TYPE_CLASS:
11625 case MONO_TYPE_VALUETYPE: {
11626 MonoMethod *method;
11629 MonoBoolean delete_old = FALSE;
11631 klass = t->data.klass;
11633 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11636 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11637 klass->blittable || klass->enumtype))
11638 return mono_object_unbox (o);
11640 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11642 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11643 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11647 pa [2] = &delete_old;
11649 mono_runtime_invoke (method, NULL, pa, NULL);
11656 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11662 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11670 t = &o->vtable->klass->byval_arg;
11672 case MONO_TYPE_STRING:
11673 switch (string_encoding) {
11674 case MONO_NATIVE_LPWSTR:
11675 case MONO_NATIVE_LPSTR:
11676 mono_marshal_free (ptr);
11679 g_warning ("marshaling conversion %d not implemented", string_encoding);
11680 g_assert_not_reached ();
11683 case MONO_TYPE_CLASS:
11684 case MONO_TYPE_VALUETYPE: {
11685 klass = t->data.klass;
11687 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11688 klass->blittable || klass->enumtype))
11691 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11692 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11698 mono_runtime_invoke (method, NULL, pa, NULL);
11701 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11702 mono_struct_delete_old (klass, ptr);
11705 mono_marshal_free (ptr);
11714 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11716 MonoMethodSignature *sig, *csig;
11717 MonoMethodBuilder *mb;
11721 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11722 mb->method->slot = -1;
11724 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11725 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11727 sig = mono_method_signature (method);
11728 csig = signature_dup (method->klass->image, sig);
11729 csig->generic_param_count = 0;
11731 mono_mb_emit_ldarg (mb, 0);
11732 for (i = 0; i < csig->param_count; i++)
11733 mono_mb_emit_ldarg (mb, i + 1);
11734 mono_mb_emit_managed_call (mb, method, NULL);
11735 mono_mb_emit_byte (mb, CEE_RET);
11737 /* We can corlib internal methods */
11738 mb->skip_visibility = TRUE;
11740 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11748 * The mono_win32_compat_* functions are implementations of inline
11749 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11750 * although not exported by kernel32.
11752 * We map the appropiate kernel32 entries to these functions using
11753 * dllmaps declared in the global etc/mono/config.
11757 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11759 if (!dest || !source)
11762 memcpy (dest, source, length);
11766 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11768 memset (dest, fill, length);
11772 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11774 if (!dest || !source)
11777 memmove (dest, source, length);
11781 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11783 memset (dest, 0, length);
11787 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11792 for (i = 0; i < len; ++i)
11796 g_assert (i < len);
11799 while (byte && !(byte & 1))
11801 g_assert (byte == 1);
11804 *bitmask = buf [i];
11808 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11810 MonoMethodBuilder *mb;
11811 MonoMethodSignature *sig, *csig;
11812 MonoExceptionClause *clause;
11817 int i, param_count, sig_size, pos_leave;
11821 klass = method->klass;
11822 image = method->klass->image;
11823 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11825 if ((res = mono_marshal_find_in_cache (cache, method)))
11828 sig = mono_method_signature (method);
11829 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11831 /* add "this" and exception param */
11832 param_count = sig->param_count + sig->hasthis + 1;
11834 /* dup & extend signature */
11835 csig = mono_metadata_signature_alloc (image, param_count);
11836 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11837 memcpy (csig, sig, sig_size);
11838 csig->param_count = param_count;
11841 csig->call_convention = MONO_CALL_DEFAULT;
11843 if (sig->hasthis) {
11845 csig->params [0] = &klass->byval_arg;
11846 /* move params up by one */
11847 for (i = 0; i < sig->param_count; i++)
11848 csig->params [i + 1] = sig->params [i];
11851 /* setup exception param as byref+[out] */
11852 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11853 &mono_defaults.exception_class->byval_arg);
11854 csig->params [param_count - 1]->byref = 1;
11855 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11857 /* convert struct return to object */
11858 if (MONO_TYPE_ISSTRUCT (sig->ret))
11859 csig->ret = &mono_defaults.object_class->byval_arg;
11861 /* local 0 (temp for exception object) */
11862 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11864 /* local 1 (temp for result) */
11865 if (!MONO_TYPE_IS_VOID (sig->ret))
11866 mono_mb_add_local (mb, sig->ret);
11868 /* clear exception arg */
11869 mono_mb_emit_ldarg (mb, param_count - 1);
11870 mono_mb_emit_byte (mb, CEE_LDNULL);
11871 mono_mb_emit_byte (mb, CEE_STIND_REF);
11874 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11875 clause->try_offset = mono_mb_get_label (mb);
11877 /* push method's args */
11878 for (i = 0; i < param_count - 1; i++) {
11882 mono_mb_emit_ldarg (mb, i);
11884 /* get the byval type of the param */
11885 klass = mono_class_from_mono_type (csig->params [i]);
11886 type = &klass->byval_arg;
11888 /* unbox struct args */
11889 if (MONO_TYPE_ISSTRUCT (type)) {
11890 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11892 /* byref args & and the "this" arg must remain a ptr.
11893 Otherwise make a copy of the value type */
11894 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11895 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11897 csig->params [i] = &mono_defaults.object_class->byval_arg;
11902 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11903 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11905 mono_mb_emit_op (mb, CEE_CALL, method);
11907 /* save result at local 1 */
11908 if (!MONO_TYPE_IS_VOID (sig->ret))
11909 mono_mb_emit_stloc (mb, 1);
11911 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11914 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11915 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11916 clause->data.catch_class = mono_defaults.object_class;
11918 clause->handler_offset = mono_mb_get_label (mb);
11920 /* store exception at local 0 */
11921 mono_mb_emit_stloc (mb, 0);
11922 mono_mb_emit_ldarg (mb, param_count - 1);
11923 mono_mb_emit_ldloc (mb, 0);
11924 mono_mb_emit_byte (mb, CEE_STIND_REF);
11925 mono_mb_emit_branch (mb, CEE_LEAVE);
11927 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11929 mono_mb_set_clauses (mb, 1, clause);
11931 mono_mb_patch_branch (mb, pos_leave);
11934 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11935 mono_mb_emit_ldloc (mb, 1);
11937 /* box the return value */
11938 if (MONO_TYPE_ISSTRUCT (sig->ret))
11939 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11942 mono_mb_emit_byte (mb, CEE_RET);
11944 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11951 * mono_marshal_free_dynamic_wrappers:
11953 * Free wrappers of the dynamic method METHOD.
11956 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11958 MonoImage *image = method->klass->image;
11960 g_assert (method->dynamic);
11962 /* This could be called during shutdown */
11963 if (marshal_mutex_initialized)
11964 mono_marshal_lock ();
11966 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11967 * they could be shared with other methods ?
11969 if (image->runtime_invoke_direct_cache)
11970 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11971 if (image->delegate_bound_static_invoke_cache)
11972 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
11973 if (image->delegate_abstract_invoke_cache)
11974 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
11976 if (marshal_mutex_initialized)
11977 mono_marshal_unlock ();
11981 * mono_marshal_free_inflated_wrappers:
11983 * Free wrappers of the inflated method METHOD.
11987 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11989 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11990 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11992 return mono_metadata_signature_equal (pair->sig, sig);
11996 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11998 MonoMethodSignature *sig = method->signature;
12000 g_assert (method->is_inflated);
12002 /* Ignore calls occuring late during cleanup. */
12003 if (!marshal_mutex_initialized)
12006 mono_marshal_lock ();
12008 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12009 * they could be shared with other methods ?
12013 * indexed by MonoMethodSignature
12015 /* FIXME: This could remove unrelated wrappers as well */
12016 if (sig && method->klass->image->delegate_begin_invoke_cache)
12017 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12018 if (sig && method->klass->image->delegate_end_invoke_cache)
12019 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12020 if (sig && method->klass->image->delegate_invoke_cache)
12021 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12022 if (sig && method->klass->image->runtime_invoke_cache)
12023 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12026 * indexed by SignatureMethodPair
12028 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12029 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12030 signature_method_pair_matches_signature, (gpointer)sig);
12032 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12033 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12034 signature_method_pair_matches_signature, (gpointer)sig);
12037 * indexed by MonoMethod pointers
12039 if (method->klass->image->runtime_invoke_direct_cache)
12040 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12041 if (method->klass->image->managed_wrapper_cache)
12042 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12043 if (method->klass->image->native_wrapper_cache)
12044 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12045 if (method->klass->image->remoting_invoke_cache)
12046 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12047 if (method->klass->image->synchronized_cache)
12048 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12049 if (method->klass->image->unbox_wrapper_cache)
12050 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12051 if (method->klass->image->cominterop_invoke_cache)
12052 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12053 if (method->klass->image->cominterop_wrapper_cache)
12054 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12055 if (method->klass->image->thunk_invoke_cache)
12056 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12058 mono_marshal_unlock ();