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"
41 /* #define DEBUG_RUNTIME_CODE */
43 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
47 MONO_MARSHAL_NONE, /* No marshalling needed */
48 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
49 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
50 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
51 } MonoXDomainMarshalType;
54 #include "mono/cil/opcode.def"
59 struct _MonoRemotingMethods {
61 MonoMethod *invoke_with_check;
62 MonoMethod *xdomain_invoke;
63 MonoMethod *xdomain_dispatch;
66 typedef struct _MonoRemotingMethods MonoRemotingMethods;
69 * This mutex protects the various marshalling related caches in MonoImage
70 * and a few other data structures static to this file.
71 * Note that when this lock is held it is not possible to take other runtime
72 * locks like the loader lock.
74 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
75 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
76 static CRITICAL_SECTION marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static guint32 last_error_tls_id;
81 static guint32 load_type_info_tls_id;
84 delegate_hash_table_add (MonoDelegate *d);
87 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
90 mono_struct_delete_old (MonoClass *klass, char *ptr);
93 mono_marshal_string_to_utf16 (MonoString *s);
96 mono_marshal_string_to_utf16_copy (MonoString *s);
99 mono_string_to_lpstr (MonoString *string_obj);
101 static MonoStringBuilder *
102 mono_string_utf8_to_builder2 (char *text);
104 static MonoStringBuilder *
105 mono_string_utf16_to_builder2 (gunichar2 *text);
108 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
111 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
114 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
116 static MonoAsyncResult *
117 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
120 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
123 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
126 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
129 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
132 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
134 static MonoReflectionType *
135 type_from_handle (MonoType *handle);
138 mono_marshal_set_last_error_windows (int error);
140 static void init_safe_handle (void);
142 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
143 static MonoMethod *sh_dangerous_add_ref;
144 static MonoMethod *sh_dangerous_release;
150 sh_dangerous_add_ref = mono_class_get_method_from_name (
151 mono_defaults.safehandle_class, "DangerousAddRef", 1);
152 sh_dangerous_release = mono_class_get_method_from_name (
153 mono_defaults.safehandle_class, "DangerousRelease", 0);
157 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
159 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
161 mono_register_jit_icall (func, name, sig, save);
164 static MonoMethodSignature*
165 signature_dup (MonoImage *image, MonoMethodSignature *sig)
167 MonoMethodSignature *res;
170 res = mono_metadata_signature_alloc (image, sig->param_count);
171 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
172 memcpy (res, sig, sigsize);
178 mono_signature_no_pinvoke (MonoMethod *method)
180 MonoMethodSignature *sig = mono_method_signature (method);
182 sig = signature_dup (method->klass->image, sig);
183 sig->pinvoke = FALSE;
190 mono_marshal_init (void)
192 static gboolean module_initialized = FALSE;
194 if (!module_initialized) {
195 module_initialized = TRUE;
196 InitializeCriticalSection (&marshal_mutex);
197 marshal_mutex_initialized = TRUE;
198 last_error_tls_id = TlsAlloc ();
199 load_type_info_tls_id = TlsAlloc ();
201 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
202 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
203 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
204 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
205 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
206 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
207 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
208 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
209 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
210 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
211 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
212 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
213 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
214 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
215 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
216 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
217 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
218 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
219 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
220 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
221 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
222 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
223 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
224 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
225 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
226 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
227 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
228 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
229 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
230 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
231 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
232 register_icall (g_free, "g_free", "void ptr", FALSE);
233 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
234 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
235 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
236 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
237 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
238 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
239 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
240 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
241 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
242 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
243 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
244 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
245 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
246 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
247 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
248 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
250 mono_cominterop_init ();
255 mono_marshal_cleanup (void)
257 mono_cominterop_cleanup ();
259 TlsFree (load_type_info_tls_id);
260 TlsFree (last_error_tls_id);
261 DeleteCriticalSection (&marshal_mutex);
262 marshal_mutex_initialized = FALSE;
265 MonoClass *byte_array_class;
266 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
267 static MonoMethod *method_set_context, *method_get_context;
268 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
271 mono_remoting_marshal_init (void)
275 static gboolean module_initialized = FALSE;
277 if (!module_initialized) {
278 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
279 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
280 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
281 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
283 klass = mono_defaults.real_proxy_class;
284 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
286 klass = mono_defaults.exception_class;
287 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
289 klass = mono_defaults.thread_class;
290 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
292 klass = mono_defaults.appdomain_class;
293 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
294 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
296 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
297 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
299 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
300 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
302 module_initialized = TRUE;
307 mono_delegate_to_ftnptr (MonoDelegate *delegate)
309 MonoMethod *method, *wrapper;
311 uint32_t target_handle = 0;
316 if (delegate->delegate_trampoline)
317 return delegate->delegate_trampoline;
319 klass = ((MonoObject *)delegate)->vtable->klass;
320 g_assert (klass->delegate);
322 method = delegate->method;
324 if (mono_method_signature (method)->pinvoke) {
325 const char *exc_class, *exc_arg;
328 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
330 g_assert (exc_class);
331 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
336 if (delegate->target) {
337 /* Produce a location which can be embedded in JITted code */
338 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
341 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
343 delegate->delegate_trampoline = mono_compile_method (wrapper);
345 // Add the delegate to the delegate hash table
346 delegate_hash_table_add (delegate);
348 /* when the object is collected, collect the dynamic method, too */
349 mono_object_register_finalizer ((MonoObject*)delegate);
351 return delegate->delegate_trampoline;
355 * this hash table maps from a delegate trampoline object to a weak reference
356 * of the delegate. As an optimizations with a non-moving GC we store the
357 * object pointer itself, otherwise we use a GC handle.
359 static GHashTable *delegate_hash_table;
362 delegate_hash_table_new (void) {
363 return g_hash_table_new (NULL, NULL);
367 delegate_hash_table_remove (MonoDelegate *d)
369 #ifdef HAVE_MOVING_COLLECTOR
372 mono_marshal_lock ();
373 if (delegate_hash_table == NULL)
374 delegate_hash_table = delegate_hash_table_new ();
375 #ifdef HAVE_MOVING_COLLECTOR
376 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
378 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
379 mono_marshal_unlock ();
380 #ifdef HAVE_MOVING_COLLECTOR
381 mono_gchandle_free (gchandle);
386 delegate_hash_table_add (MonoDelegate *d)
388 #ifdef HAVE_MOVING_COLLECTOR
389 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
390 guint32 old_gchandle;
392 mono_marshal_lock ();
393 if (delegate_hash_table == NULL)
394 delegate_hash_table = delegate_hash_table_new ();
395 #ifdef HAVE_MOVING_COLLECTOR
396 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
397 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
399 mono_gchandle_free (old_gchandle);
401 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
403 mono_marshal_unlock ();
407 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
409 #ifdef HAVE_MOVING_COLLECTOR
417 mono_marshal_lock ();
418 if (delegate_hash_table == NULL)
419 delegate_hash_table = delegate_hash_table_new ();
421 #ifdef HAVE_MOVING_COLLECTOR
422 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
423 mono_marshal_unlock ();
425 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
429 d = g_hash_table_lookup (delegate_hash_table, ftn);
430 mono_marshal_unlock ();
433 /* This is a native function, so construct a delegate for it */
434 static MonoClass *UnmanagedFunctionPointerAttribute;
435 MonoMethodSignature *sig;
437 MonoMarshalSpec **mspecs;
438 MonoCustomAttrInfo *cinfo;
439 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
440 MonoMethod *invoke = mono_get_delegate_invoke (klass);
441 MonoMethodPInvoke piinfo;
444 memset (&piinfo, 0, sizeof (piinfo));
445 if (!UnmanagedFunctionPointerAttribute)
446 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
448 /* The attribute is only available in Net 2.0 */
449 if (UnmanagedFunctionPointerAttribute) {
451 * The pinvoke attributes are stored in a real custom attribute so we have to
454 cinfo = mono_custom_attrs_from_class (klass);
456 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
458 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
461 mono_custom_attrs_free (cinfo);
465 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
466 mono_method_get_marshal_info (invoke, mspecs);
467 /* Freed below so don't alloc from mempool */
468 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
471 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
473 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
475 mono_metadata_free_marshal_spec (mspecs [i]);
479 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
480 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
483 if (d->object.vtable->domain != mono_domain_get ())
484 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
490 mono_delegate_free_ftnptr (MonoDelegate *delegate)
495 delegate_hash_table_remove (delegate);
497 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
499 if (!delegate->target) {
500 /* The wrapper method is shared between delegates -> no need to free it */
507 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
510 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
512 /*the target gchandle is the first entry after size and the wrapper itself.*/
513 gchandle = GPOINTER_TO_UINT (method_data [2]);
516 mono_gchandle_free (gchandle);
518 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
523 mono_array_to_savearray (MonoArray *array)
528 g_assert_not_reached ();
533 mono_array_to_lparray (MonoArray *array)
535 gpointer *nativeArray = NULL;
536 int nativeArraySize = 0;
545 klass = array->obj.vtable->klass;
547 switch (klass->element_class->byval_arg.type) {
549 g_assert_not_reached ();
552 case MONO_TYPE_CLASS:
553 nativeArraySize = array->max_length;
554 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
555 for(i = 0; i < nativeArraySize; ++i)
556 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
560 case MONO_TYPE_BOOLEAN:
573 case MONO_TYPE_VALUETYPE:
576 case MONO_TYPE_GENERICINST:
578 case MONO_TYPE_OBJECT:
579 case MONO_TYPE_ARRAY:
580 case MONO_TYPE_SZARRAY:
581 case MONO_TYPE_STRING:
583 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
584 g_assert_not_reached ();
587 return array->vector;
591 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
602 klass = array->obj.vtable->klass;
604 switch (klass->element_class->byval_arg.type) {
605 case MONO_TYPE_CLASS:
606 for(i = 0; i < array->max_length; ++i)
607 mono_marshal_free_ccw(nativeArray[i]);
615 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
617 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
619 if (elclass == mono_defaults.byte_class) {
620 GError *error = NULL;
624 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
627 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
631 g_error_free (error);
634 g_assert_not_reached ();
638 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
640 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
642 if (elclass == mono_defaults.byte_class) {
644 GError *error = NULL;
646 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
648 MonoException *exc = mono_get_exception_argument ("string", error->message);
649 g_error_free (error);
650 mono_raise_exception (exc);
653 memcpy (native_arr, as, MIN (strlen (as), elnum));
656 g_assert_not_reached ();
661 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
663 GError *error = NULL;
673 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
675 if (items_written > mono_stringbuilder_capacity (sb))
676 items_written = mono_stringbuilder_capacity (sb);
679 if (! sb->str || sb->str == sb->cached_str) {
680 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
681 sb->cached_str = NULL;
684 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
685 sb->length = items_written;
687 g_error_free (error);
693 mono_string_utf8_to_builder2 (char *text)
696 MonoStringBuilder *sb;
697 static MonoClass *string_builder_class;
698 static MonoMethod *sb_ctor;
705 if (!string_builder_class) {
706 MonoMethodDesc *desc;
708 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
709 g_assert (string_builder_class);
710 desc = mono_method_desc_new (":.ctor(int)", FALSE);
711 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
713 mono_method_desc_free (desc);
718 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
721 mono_runtime_invoke (sb_ctor, sb, args, &exc);
724 mono_string_utf8_to_builder (sb, text);
730 * FIXME: This routine does not seem to do what it seems to do
731 * the @text is never copied into the string builder
734 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
741 g_assert (mono_string_chars (sb->str) == text);
743 for (len = 0; text [len] != 0; ++len)
750 mono_string_utf16_to_builder2 (gunichar2 *text)
753 MonoStringBuilder *sb;
754 static MonoClass *string_builder_class;
755 static MonoMethod *sb_ctor;
762 if (!string_builder_class) {
763 MonoMethodDesc *desc;
765 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
766 g_assert (string_builder_class);
767 desc = mono_method_desc_new (":.ctor(int)", FALSE);
768 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
770 mono_method_desc_free (desc);
773 for (len = 0; text [len] != 0; ++len)
776 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
779 mono_runtime_invoke (sb_ctor, sb, args, &exc);
783 memcpy (mono_string_chars (sb->str), text, len * 2);
789 * mono_string_builder_to_utf8:
790 * @sb: the string builder
792 * Converts to utf8 the contents of the MonoStringBuilder.
794 * Returns: a utf8 string with the contents of the StringBuilder.
796 * The return value must be released with g_free.
799 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
801 GError *error = NULL;
802 gchar *tmp, *res = NULL;
807 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
809 * The sb could have been allocated with the default capacity and be empty.
810 * we need to alloc a buffer of the default capacity in this case.
812 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
813 sb->cached_str = NULL;
816 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
818 g_error_free (error);
819 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
821 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
822 memcpy (res, tmp, sb->length + 1);
830 * mono_string_builder_to_utf16:
831 * @sb: the string builder
833 * Converts to utf16 the contents of the MonoStringBuilder.
835 * Returns: a utf16 string with the contents of the StringBuilder.
837 * The return value must not be freed.
840 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
848 * The stringbuilder might not have ownership of this string. If this is
849 * the case, we must duplicate the string, so that we don't munge immutable
852 if (sb->str == sb->cached_str) {
854 * The sb could have been allocated with the default capacity and be empty.
855 * we need to alloc a buffer of the default capacity in this case.
857 if (sb->str->length == 0)
858 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
860 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
861 sb->cached_str = NULL;
865 *(mono_string_chars (sb->str)) = '\0';
867 return mono_string_chars (sb->str);
871 mono_string_to_lpstr (MonoString *s)
876 GError *error = NULL;
882 as = CoTaskMemAlloc (1);
887 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
889 MonoException *exc = mono_get_exception_argument ("string", error->message);
890 g_error_free (error);
891 mono_raise_exception(exc);
894 as = CoTaskMemAlloc (len + 1);
895 memcpy (as, tmp, len + 1);
900 return mono_string_to_utf8 (s);
905 mono_string_to_ansibstr (MonoString *string_obj)
907 g_error ("UnmanagedMarshal.BStr is not implemented.");
912 * mono_string_to_byvalstr:
913 * @dst: Where to store the null-terminated utf8 decoded string.
914 * @src: the MonoString to copy.
915 * @size: the maximum number of bytes to copy.
917 * Copies the MonoString pointed to by @src as a utf8 string
918 * into @dst, it copies at most @size bytes into the destination.
921 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
926 g_assert (dst != NULL);
929 memset (dst, 0, size);
933 s = mono_string_to_utf8 (src);
934 len = MIN (size, strlen (s));
937 memcpy (dst, s, len);
942 * mono_string_to_byvalwstr:
943 * @dst: Where to store the null-terminated utf16 decoded string.
944 * @src: the MonoString to copy.
945 * @size: the maximum number of bytes to copy.
947 * Copies the MonoString pointed to by @src as a utf16 string into
948 * @dst, it copies at most @size bytes into the destination (including
949 * a terminating 16-bit zero terminator).
952 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
956 g_assert (dst != NULL);
960 memset (dst, 0, size * 2);
964 len = MIN (size, (mono_string_length (src)));
965 memcpy (dst, mono_string_chars (src), size * 2);
966 if (size <= mono_string_length (src))
968 *((gunichar2 *) dst + len) = 0;
972 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
975 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
976 mono_mb_emit_byte (mb, CEE_LDIND_I);
977 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
978 mono_mb_emit_byte (mb, CEE_ADD);
979 mono_mb_emit_byte (mb, CEE_LDIND_I);
980 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
981 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
982 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
983 pos = mono_mb_emit_branch (mb, branch_code);
988 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
991 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
992 mono_mb_emit_byte (mb, CEE_LDIND_REF);
993 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
994 mono_mb_emit_byte (mb, CEE_LDIND_I4);
995 mono_mb_emit_icon (mb, -1);
996 pos = mono_mb_emit_branch (mb, branch_code);
1001 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1003 static int offset = -1;
1007 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1009 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1010 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1011 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1012 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1013 mono_mb_emit_ldflda (mb, offset);
1014 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1015 mono_mb_emit_icon (mb, mask);
1016 mono_mb_emit_byte (mb, CEE_AND);
1017 mono_mb_emit_icon (mb, 0);
1018 return mono_mb_emit_branch (mb, branch_code);
1022 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1024 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1028 mono_type_to_ldind (MonoType *type)
1034 switch (type->type) {
1036 return CEE_LDIND_I1;
1038 case MONO_TYPE_BOOLEAN:
1039 return CEE_LDIND_U1;
1041 return CEE_LDIND_I2;
1043 case MONO_TYPE_CHAR:
1044 return CEE_LDIND_U2;
1046 return CEE_LDIND_I4;
1048 return CEE_LDIND_U4;
1052 case MONO_TYPE_FNPTR:
1054 case MONO_TYPE_CLASS:
1055 case MONO_TYPE_STRING:
1056 case MONO_TYPE_OBJECT:
1057 case MONO_TYPE_SZARRAY:
1058 case MONO_TYPE_ARRAY:
1059 return CEE_LDIND_REF;
1062 return CEE_LDIND_I8;
1064 return CEE_LDIND_R4;
1066 return CEE_LDIND_R8;
1067 case MONO_TYPE_VALUETYPE:
1068 if (type->data.klass->enumtype) {
1069 type = mono_class_enum_basetype (type->data.klass);
1073 case MONO_TYPE_TYPEDBYREF:
1075 case MONO_TYPE_GENERICINST:
1076 type = &type->data.generic_class->container_class->byval_arg;
1079 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1085 mono_type_to_stind (MonoType *type)
1091 switch (type->type) {
1094 case MONO_TYPE_BOOLEAN:
1095 return CEE_STIND_I1;
1098 case MONO_TYPE_CHAR:
1099 return CEE_STIND_I2;
1102 return CEE_STIND_I4;
1106 case MONO_TYPE_FNPTR:
1108 case MONO_TYPE_CLASS:
1109 case MONO_TYPE_STRING:
1110 case MONO_TYPE_OBJECT:
1111 case MONO_TYPE_SZARRAY:
1112 case MONO_TYPE_ARRAY:
1113 return CEE_STIND_REF;
1116 return CEE_STIND_I8;
1118 return CEE_STIND_R4;
1120 return CEE_STIND_R8;
1121 case MONO_TYPE_VALUETYPE:
1122 if (type->data.klass->enumtype) {
1123 type = mono_class_enum_basetype (type->data.klass);
1127 case MONO_TYPE_TYPEDBYREF:
1129 case MONO_TYPE_GENERICINST:
1130 type = &type->data.generic_class->container_class->byval_arg;
1133 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1139 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1142 case MONO_MARSHAL_CONV_BOOL_I4:
1143 mono_mb_emit_ldloc (mb, 1);
1144 mono_mb_emit_ldloc (mb, 0);
1145 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1146 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1147 mono_mb_emit_byte (mb, 3);
1148 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1149 mono_mb_emit_byte (mb, CEE_BR_S);
1150 mono_mb_emit_byte (mb, 1);
1151 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1152 mono_mb_emit_byte (mb, CEE_STIND_I1);
1154 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1155 mono_mb_emit_ldloc (mb, 1);
1156 mono_mb_emit_ldloc (mb, 0);
1157 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1158 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1159 mono_mb_emit_byte (mb, 3);
1160 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1161 mono_mb_emit_byte (mb, CEE_BR_S);
1162 mono_mb_emit_byte (mb, 1);
1163 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1164 mono_mb_emit_byte (mb, CEE_STIND_I1);
1166 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1167 MonoClass *eklass = NULL;
1170 if (type->type == MONO_TYPE_SZARRAY) {
1171 eklass = type->data.klass;
1173 g_assert_not_reached ();
1176 esize = mono_class_native_size (eklass, NULL);
1178 /* create a new array */
1179 mono_mb_emit_ldloc (mb, 1);
1180 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1181 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1182 mono_mb_emit_byte (mb, CEE_STIND_I);
1184 if (eklass->blittable) {
1185 /* copy the elements */
1186 mono_mb_emit_ldloc (mb, 1);
1187 mono_mb_emit_byte (mb, CEE_LDIND_I);
1188 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1189 mono_mb_emit_byte (mb, CEE_ADD);
1190 mono_mb_emit_ldloc (mb, 0);
1191 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1192 mono_mb_emit_byte (mb, CEE_PREFIX1);
1193 mono_mb_emit_byte (mb, CEE_CPBLK);
1196 int array_var, src_var, dst_var, index_var;
1197 guint32 label2, label3;
1199 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1200 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1201 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1204 mono_mb_emit_ldloc (mb, 1);
1205 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1206 mono_mb_emit_stloc (mb, array_var);
1208 /* save the old src pointer */
1209 mono_mb_emit_ldloc (mb, 0);
1210 mono_mb_emit_stloc (mb, src_var);
1211 /* save the old dst pointer */
1212 mono_mb_emit_ldloc (mb, 1);
1213 mono_mb_emit_stloc (mb, dst_var);
1215 /* Emit marshalling loop */
1216 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1217 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1218 mono_mb_emit_stloc (mb, index_var);
1221 label2 = mono_mb_get_label (mb);
1222 mono_mb_emit_ldloc (mb, index_var);
1223 mono_mb_emit_ldloc (mb, array_var);
1224 mono_mb_emit_byte (mb, CEE_LDLEN);
1225 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1227 /* src is already set */
1230 mono_mb_emit_ldloc (mb, array_var);
1231 mono_mb_emit_ldloc (mb, index_var);
1232 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1233 mono_mb_emit_stloc (mb, 1);
1235 /* Do the conversion */
1236 emit_struct_conv (mb, eklass, TRUE);
1239 mono_mb_emit_add_to_local (mb, index_var, 1);
1241 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1243 mono_mb_patch_branch (mb, label3);
1245 /* restore the old src pointer */
1246 mono_mb_emit_ldloc (mb, src_var);
1247 mono_mb_emit_stloc (mb, 0);
1248 /* restore the old dst pointer */
1249 mono_mb_emit_ldloc (mb, dst_var);
1250 mono_mb_emit_stloc (mb, 1);
1254 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1255 MonoClass *eclass = mono_defaults.char_class;
1257 /* create a new array */
1258 mono_mb_emit_ldloc (mb, 1);
1259 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1260 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1261 mono_mb_emit_byte (mb, CEE_STIND_REF);
1263 mono_mb_emit_ldloc (mb, 1);
1264 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1265 mono_mb_emit_ldloc (mb, 0);
1266 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1267 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1268 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1271 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1272 mono_mb_emit_ldloc (mb, 1);
1273 mono_mb_emit_ldloc (mb, 0);
1274 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1275 mono_mb_emit_byte (mb, CEE_STIND_REF);
1277 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1278 mono_mb_emit_ldloc (mb, 1);
1279 mono_mb_emit_ldloc (mb, 0);
1280 mono_mb_emit_icall (mb, mono_string_from_utf16);
1281 mono_mb_emit_byte (mb, CEE_STIND_REF);
1283 case MONO_MARSHAL_CONV_STR_LPTSTR:
1284 mono_mb_emit_ldloc (mb, 1);
1285 mono_mb_emit_ldloc (mb, 0);
1286 mono_mb_emit_byte (mb, CEE_LDIND_I);
1288 mono_mb_emit_icall (mb, mono_string_from_utf16);
1290 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1292 mono_mb_emit_byte (mb, CEE_STIND_REF);
1294 case MONO_MARSHAL_CONV_STR_LPSTR:
1295 mono_mb_emit_ldloc (mb, 1);
1296 mono_mb_emit_ldloc (mb, 0);
1297 mono_mb_emit_byte (mb, CEE_LDIND_I);
1298 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1299 mono_mb_emit_byte (mb, CEE_STIND_REF);
1301 case MONO_MARSHAL_CONV_STR_LPWSTR:
1302 mono_mb_emit_ldloc (mb, 1);
1303 mono_mb_emit_ldloc (mb, 0);
1304 mono_mb_emit_byte (mb, CEE_LDIND_I);
1305 mono_mb_emit_icall (mb, mono_string_from_utf16);
1306 mono_mb_emit_byte (mb, CEE_STIND_REF);
1308 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1309 MonoClass *klass = mono_class_from_mono_type (type);
1310 int src_var, dst_var;
1312 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1313 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1315 /* *dst = new object */
1316 mono_mb_emit_ldloc (mb, 1);
1317 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1318 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1319 mono_mb_emit_byte (mb, CEE_STIND_REF);
1321 /* save the old src pointer */
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_stloc (mb, src_var);
1324 /* save the old dst pointer */
1325 mono_mb_emit_ldloc (mb, 1);
1326 mono_mb_emit_stloc (mb, dst_var);
1328 /* dst = pointer to newly created object data */
1329 mono_mb_emit_ldloc (mb, 1);
1330 mono_mb_emit_byte (mb, CEE_LDIND_I);
1331 mono_mb_emit_icon (mb, sizeof (MonoObject));
1332 mono_mb_emit_byte (mb, CEE_ADD);
1333 mono_mb_emit_stloc (mb, 1);
1335 emit_struct_conv (mb, klass, TRUE);
1337 /* restore the old src pointer */
1338 mono_mb_emit_ldloc (mb, src_var);
1339 mono_mb_emit_stloc (mb, 0);
1340 /* restore the old dst pointer */
1341 mono_mb_emit_ldloc (mb, dst_var);
1342 mono_mb_emit_stloc (mb, 1);
1345 case MONO_MARSHAL_CONV_DEL_FTN: {
1346 MonoClass *klass = mono_class_from_mono_type (type);
1348 mono_mb_emit_ldloc (mb, 1);
1349 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1350 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_byte (mb, CEE_LDIND_I);
1353 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1354 mono_mb_emit_byte (mb, CEE_STIND_REF);
1357 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1358 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1362 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1363 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1364 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1365 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1367 #endif /* DISABLE_COM */
1369 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1371 * Passing SafeHandles as ref does not allow the unmanaged code
1372 * to change the SafeHandle value. If the value is changed,
1373 * we should issue a diagnostic exception (NotSupportedException)
1374 * that informs the user that changes to handles in unmanaged code
1377 * Since we currently have no access to the original
1378 * SafeHandle that was used during the marshalling,
1379 * for now we just ignore this, and ignore/discard any
1380 * changes that might have happened to the handle.
1385 case MONO_MARSHAL_CONV_HANDLEREF: {
1387 * Passing HandleRefs in a struct that is ref()ed does not
1388 * copy the values back to the HandleRef
1393 case MONO_MARSHAL_CONV_STR_BSTR:
1394 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1395 case MONO_MARSHAL_CONV_STR_TBSTR:
1396 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1398 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1400 mono_mb_emit_exception_marshal_directive (mb, msg);
1408 conv_to_icall (MonoMarshalConv conv)
1411 case MONO_MARSHAL_CONV_STR_LPWSTR:
1412 return mono_marshal_string_to_utf16;
1413 case MONO_MARSHAL_CONV_LPWSTR_STR:
1414 return mono_string_from_utf16;
1415 case MONO_MARSHAL_CONV_LPSTR_STR:
1416 return mono_string_new_wrapper;
1417 case MONO_MARSHAL_CONV_STR_LPTSTR:
1419 return mono_marshal_string_to_utf16;
1421 return mono_string_to_lpstr;
1423 case MONO_MARSHAL_CONV_STR_LPSTR:
1424 return mono_string_to_lpstr;
1425 case MONO_MARSHAL_CONV_STR_BSTR:
1426 return mono_string_to_bstr;
1427 case MONO_MARSHAL_CONV_BSTR_STR:
1428 return mono_string_from_bstr;
1429 case MONO_MARSHAL_CONV_STR_TBSTR:
1430 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1431 return mono_string_to_ansibstr;
1432 case MONO_MARSHAL_CONV_SB_LPSTR:
1433 return mono_string_builder_to_utf8;
1434 case MONO_MARSHAL_CONV_SB_LPTSTR:
1436 return mono_string_builder_to_utf16;
1438 return mono_string_builder_to_utf8;
1440 case MONO_MARSHAL_CONV_SB_LPWSTR:
1441 return mono_string_builder_to_utf16;
1442 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1443 return mono_array_to_savearray;
1444 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1445 return mono_array_to_lparray;
1446 case MONO_MARSHAL_FREE_LPARRAY:
1447 return mono_free_lparray;
1448 case MONO_MARSHAL_CONV_DEL_FTN:
1449 return mono_delegate_to_ftnptr;
1450 case MONO_MARSHAL_CONV_FTN_DEL:
1451 return mono_ftnptr_to_delegate;
1452 case MONO_MARSHAL_CONV_LPSTR_SB:
1453 return mono_string_utf8_to_builder;
1454 case MONO_MARSHAL_CONV_LPTSTR_SB:
1456 return mono_string_utf16_to_builder;
1458 return mono_string_utf8_to_builder;
1460 case MONO_MARSHAL_CONV_LPWSTR_SB:
1461 return mono_string_utf16_to_builder;
1462 case MONO_MARSHAL_FREE_ARRAY:
1463 return mono_marshal_free_array;
1464 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1465 return mono_string_to_byvalstr;
1466 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1467 return mono_string_to_byvalwstr;
1469 g_assert_not_reached ();
1476 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1481 case MONO_MARSHAL_CONV_BOOL_I4:
1482 mono_mb_emit_ldloc (mb, 1);
1483 mono_mb_emit_ldloc (mb, 0);
1484 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1485 mono_mb_emit_byte (mb, CEE_STIND_I4);
1487 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1488 mono_mb_emit_ldloc (mb, 1);
1489 mono_mb_emit_ldloc (mb, 0);
1490 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1491 mono_mb_emit_byte (mb, CEE_NEG);
1492 mono_mb_emit_byte (mb, CEE_STIND_I2);
1494 case MONO_MARSHAL_CONV_STR_LPWSTR:
1495 case MONO_MARSHAL_CONV_STR_LPSTR:
1496 case MONO_MARSHAL_CONV_STR_LPTSTR:
1497 case MONO_MARSHAL_CONV_STR_BSTR:
1498 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1499 case MONO_MARSHAL_CONV_STR_TBSTR: {
1502 /* free space if free == true */
1503 mono_mb_emit_ldloc (mb, 2);
1504 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_byte (mb, CEE_LDIND_I);
1507 mono_mb_emit_icall (mb, g_free);
1508 mono_mb_patch_short_branch (mb, pos);
1510 mono_mb_emit_ldloc (mb, 1);
1511 mono_mb_emit_ldloc (mb, 0);
1512 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1513 mono_mb_emit_icall (mb, conv_to_icall (conv));
1514 mono_mb_emit_byte (mb, CEE_STIND_I);
1517 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1518 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1519 case MONO_MARSHAL_CONV_DEL_FTN:
1520 mono_mb_emit_ldloc (mb, 1);
1521 mono_mb_emit_ldloc (mb, 0);
1522 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1523 mono_mb_emit_icall (mb, conv_to_icall (conv));
1524 mono_mb_emit_byte (mb, CEE_STIND_I);
1526 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1527 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1530 mono_mb_emit_ldloc (mb, 1); /* dst */
1531 mono_mb_emit_ldloc (mb, 0);
1532 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1533 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1534 mono_mb_emit_icall (mb, conv_to_icall (conv));
1537 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1538 MonoClass *eklass = NULL;
1541 if (type->type == MONO_TYPE_SZARRAY) {
1542 eklass = type->data.klass;
1544 g_assert_not_reached ();
1547 if (eklass->valuetype)
1548 esize = mono_class_native_size (eklass, NULL);
1550 esize = sizeof (gpointer);
1552 mono_mb_emit_ldloc (mb, 0);
1553 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1554 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1556 if (eklass->blittable) {
1557 mono_mb_emit_ldloc (mb, 1);
1558 mono_mb_emit_ldloc (mb, 0);
1559 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1560 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1561 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1562 mono_mb_emit_byte (mb, CEE_PREFIX1);
1563 mono_mb_emit_byte (mb, CEE_CPBLK);
1565 int array_var, src_var, dst_var, index_var;
1566 guint32 label2, label3;
1568 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1569 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1570 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1573 mono_mb_emit_ldloc (mb, 0);
1574 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1575 mono_mb_emit_stloc (mb, array_var);
1577 /* save the old src pointer */
1578 mono_mb_emit_ldloc (mb, 0);
1579 mono_mb_emit_stloc (mb, src_var);
1580 /* save the old dst pointer */
1581 mono_mb_emit_ldloc (mb, 1);
1582 mono_mb_emit_stloc (mb, dst_var);
1584 /* Emit marshalling loop */
1585 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1586 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1587 mono_mb_emit_stloc (mb, index_var);
1590 label2 = mono_mb_get_label (mb);
1591 mono_mb_emit_ldloc (mb, index_var);
1592 mono_mb_emit_ldloc (mb, array_var);
1593 mono_mb_emit_byte (mb, CEE_LDLEN);
1594 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1597 mono_mb_emit_ldloc (mb, array_var);
1598 mono_mb_emit_ldloc (mb, index_var);
1599 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1600 mono_mb_emit_stloc (mb, 0);
1602 /* dst is already set */
1604 /* Do the conversion */
1605 emit_struct_conv (mb, eklass, FALSE);
1608 mono_mb_emit_add_to_local (mb, index_var, 1);
1610 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1612 mono_mb_patch_branch (mb, label3);
1614 /* restore the old src pointer */
1615 mono_mb_emit_ldloc (mb, src_var);
1616 mono_mb_emit_stloc (mb, 0);
1617 /* restore the old dst pointer */
1618 mono_mb_emit_ldloc (mb, dst_var);
1619 mono_mb_emit_stloc (mb, 1);
1622 mono_mb_patch_branch (mb, pos);
1625 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1626 mono_mb_emit_ldloc (mb, 0);
1627 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1628 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1630 mono_mb_emit_ldloc (mb, 1);
1631 mono_mb_emit_ldloc (mb, 0);
1632 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1633 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1634 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1635 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1636 mono_mb_patch_short_branch (mb, pos);
1639 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1640 int src_var, dst_var;
1642 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1643 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1645 mono_mb_emit_ldloc (mb, 0);
1646 mono_mb_emit_byte (mb, CEE_LDIND_I);
1647 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1649 /* save the old src pointer */
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_stloc (mb, src_var);
1652 /* save the old dst pointer */
1653 mono_mb_emit_ldloc (mb, 1);
1654 mono_mb_emit_stloc (mb, dst_var);
1656 /* src = pointer to object data */
1657 mono_mb_emit_ldloc (mb, 0);
1658 mono_mb_emit_byte (mb, CEE_LDIND_I);
1659 mono_mb_emit_icon (mb, sizeof (MonoObject));
1660 mono_mb_emit_byte (mb, CEE_ADD);
1661 mono_mb_emit_stloc (mb, 0);
1663 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1665 /* restore the old src pointer */
1666 mono_mb_emit_ldloc (mb, src_var);
1667 mono_mb_emit_stloc (mb, 0);
1668 /* restore the old dst pointer */
1669 mono_mb_emit_ldloc (mb, dst_var);
1670 mono_mb_emit_stloc (mb, 1);
1672 mono_mb_patch_branch (mb, pos);
1677 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1678 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1679 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1680 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1682 #endif /* DISABLE_COM */
1684 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1685 int dar_release_slot, pos;
1687 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1690 * The following is ifdefed-out, because I have no way of doing the
1691 * DangerousRelease when destroying the structure
1694 /* set release = false */
1695 mono_mb_emit_icon (mb, 0);
1696 mono_mb_emit_stloc (mb, dar_release_slot);
1697 if (!sh_dangerous_add_ref)
1698 init_safe_handle ();
1700 /* safehandle.DangerousAddRef (ref release) */
1701 mono_mb_emit_ldloc (mb, 0); /* the source */
1702 mono_mb_emit_byte (mb, CEE_LDIND_I);
1703 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1704 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1706 mono_mb_emit_ldloc (mb, 0);
1707 mono_mb_emit_byte (mb, CEE_LDIND_I);
1708 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1709 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1710 mono_mb_patch_branch (mb, pos);
1712 /* Pull the handle field from SafeHandle */
1713 mono_mb_emit_ldloc (mb, 1);
1714 mono_mb_emit_ldloc (mb, 0);
1715 mono_mb_emit_byte (mb, CEE_LDIND_I);
1716 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 mono_mb_emit_byte (mb, CEE_STIND_I);
1722 case MONO_MARSHAL_CONV_HANDLEREF: {
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1726 mono_mb_emit_byte (mb, CEE_ADD);
1727 mono_mb_emit_byte (mb, CEE_LDIND_I);
1728 mono_mb_emit_byte (mb, CEE_STIND_I);
1733 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1734 MonoException *exc = mono_get_exception_not_implemented (msg);
1735 g_warning ("%s", msg);
1737 mono_raise_exception (exc);
1743 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1745 MonoMarshalType *info;
1749 emit_struct_conv(mb, klass->parent, to_object);
1751 info = mono_marshal_load_type_info (klass);
1753 if (info->native_size == 0)
1756 if (klass->blittable) {
1757 int msize = mono_class_value_size (klass, NULL);
1758 g_assert (msize == info->native_size);
1759 mono_mb_emit_ldloc (mb, 1);
1760 mono_mb_emit_ldloc (mb, 0);
1761 mono_mb_emit_icon (mb, msize);
1762 mono_mb_emit_byte (mb, CEE_PREFIX1);
1763 mono_mb_emit_byte (mb, CEE_CPBLK);
1765 mono_mb_emit_add_to_local (mb, 0, msize);
1766 mono_mb_emit_add_to_local (mb, 1, msize);
1770 if (klass != mono_defaults.safehandle_class) {
1771 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1772 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1773 mono_type_full_name (&klass->byval_arg));
1774 mono_mb_emit_exception_marshal_directive (mb, msg);
1779 for (i = 0; i < info->num_fields; i++) {
1780 MonoMarshalNative ntype;
1781 MonoMarshalConv conv;
1782 MonoType *ftype = info->fields [i].field->type;
1785 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1787 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1790 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1793 msize = klass->instance_size - info->fields [i].field->offset;
1794 usize = info->native_size - info->fields [i].offset;
1796 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1797 usize = info->fields [i + 1].offset - info->fields [i].offset;
1800 if (klass != mono_defaults.safehandle_class){
1802 * FIXME: Should really check for usize==0 and msize>0, but we apply
1803 * the layout to the managed structure as well.
1806 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1807 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1808 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1809 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1810 "reference field at the same offset as another field.",
1811 mono_type_full_name (&klass->byval_arg));
1816 case MONO_MARSHAL_CONV_NONE: {
1819 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1820 ftype->type == MONO_TYPE_U) {
1821 mono_mb_emit_ldloc (mb, 1);
1822 mono_mb_emit_ldloc (mb, 0);
1823 mono_mb_emit_byte (mb, CEE_LDIND_I);
1824 mono_mb_emit_byte (mb, CEE_STIND_I);
1835 case MONO_TYPE_BOOLEAN:
1838 case MONO_TYPE_CHAR:
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1847 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1849 case MONO_TYPE_VALUETYPE: {
1850 int src_var, dst_var;
1852 if (ftype->data.klass->enumtype) {
1853 ftype = mono_class_enum_basetype (ftype->data.klass);
1857 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1858 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1860 /* save the old src pointer */
1861 mono_mb_emit_ldloc (mb, 0);
1862 mono_mb_emit_stloc (mb, src_var);
1863 /* save the old dst pointer */
1864 mono_mb_emit_ldloc (mb, 1);
1865 mono_mb_emit_stloc (mb, dst_var);
1867 emit_struct_conv (mb, ftype->data.klass, to_object);
1869 /* restore the old src pointer */
1870 mono_mb_emit_ldloc (mb, src_var);
1871 mono_mb_emit_stloc (mb, 0);
1872 /* restore the old dst pointer */
1873 mono_mb_emit_ldloc (mb, dst_var);
1874 mono_mb_emit_stloc (mb, 1);
1877 case MONO_TYPE_OBJECT: {
1878 mono_init_com_types ();
1880 static MonoMethod *variant_clear = NULL;
1881 static MonoMethod *get_object_for_native_variant = NULL;
1884 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1885 if (!get_object_for_native_variant)
1886 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1887 mono_mb_emit_ldloc (mb, 1);
1888 mono_mb_emit_ldloc (mb, 0);
1889 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1890 mono_mb_emit_byte (mb, CEE_STIND_REF);
1892 mono_mb_emit_ldloc (mb, 0);
1893 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1896 static MonoMethod *get_native_variant_for_object = NULL;
1898 if (!get_native_variant_for_object)
1899 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1901 mono_mb_emit_ldloc (mb, 0);
1902 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1903 mono_mb_emit_ldloc (mb, 1);
1904 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1910 g_warning ("marshaling type %02x not implemented", ftype->type);
1911 g_assert_not_reached ();
1916 int src_var, dst_var;
1918 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1919 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1921 /* save the old src pointer */
1922 mono_mb_emit_ldloc (mb, 0);
1923 mono_mb_emit_stloc (mb, src_var);
1924 /* save the old dst pointer */
1925 mono_mb_emit_ldloc (mb, 1);
1926 mono_mb_emit_stloc (mb, dst_var);
1929 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1931 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1933 /* restore the old src pointer */
1934 mono_mb_emit_ldloc (mb, src_var);
1935 mono_mb_emit_stloc (mb, 0);
1936 /* restore the old dst pointer */
1937 mono_mb_emit_ldloc (mb, dst_var);
1938 mono_mb_emit_stloc (mb, 1);
1943 mono_mb_emit_add_to_local (mb, 0, usize);
1944 mono_mb_emit_add_to_local (mb, 1, msize);
1946 mono_mb_emit_add_to_local (mb, 0, msize);
1947 mono_mb_emit_add_to_local (mb, 1, usize);
1953 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1955 /* Call DestroyStructure */
1956 /* FIXME: Only do this if needed */
1957 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1958 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1959 mono_mb_emit_ldloc (mb, struct_var);
1960 mono_mb_emit_icall (mb, mono_struct_delete_old);
1964 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1968 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1969 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1970 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1972 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1973 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1975 mono_mb_emit_icall (mb, checkpoint_func);
1977 mono_mb_patch_branch (mb, pos_noabort);
1981 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1983 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1986 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1990 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1992 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1996 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1998 emit_thread_interrupt_checkpoint (mb);
2001 static MonoAsyncResult *
2002 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2004 MonoMethodMessage *msg;
2005 MonoDelegate *async_callback;
2006 MonoMulticastDelegate *mcast_delegate;
2010 MonoMethod *method = NULL, *method2 = NULL;
2012 g_assert (delegate);
2013 mcast_delegate = (MonoMulticastDelegate *) delegate;
2014 if (mcast_delegate->prev != NULL)
2015 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2017 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2019 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2020 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2022 /* If the target is a proxy, make a direct call. Is proxy's work
2023 // to make the call asynchronous.
2025 MonoAsyncResult *ares;
2027 MonoArray *out_args;
2028 method = delegate->method;
2030 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2031 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2032 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2033 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2034 MONO_OBJECT_SETREF (msg, async_result, ares);
2035 msg->call_type = CallType_BeginInvoke;
2038 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2040 mono_raise_exception ((MonoException *) exc);
2045 klass = delegate->object.vtable->klass;
2047 method = mono_get_delegate_invoke (klass);
2048 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2051 g_assert (method != NULL);
2053 im = mono_get_delegate_invoke (method->klass);
2054 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2056 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2060 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2062 int i, params_var, tmp_var;
2064 /* allocate local (pointer) *params[] */
2065 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2066 /* allocate local (pointer) tmp */
2067 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2069 /* alloate space on stack to store an array of pointers to the arguments */
2070 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2071 mono_mb_emit_byte (mb, CEE_PREFIX1);
2072 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2073 mono_mb_emit_stloc (mb, params_var);
2076 mono_mb_emit_ldloc (mb, params_var);
2077 mono_mb_emit_stloc (mb, tmp_var);
2079 if (save_this && sig->hasthis) {
2080 mono_mb_emit_ldloc (mb, tmp_var);
2081 mono_mb_emit_ldarg_addr (mb, 0);
2082 mono_mb_emit_byte (mb, CEE_STIND_I);
2083 /* tmp = tmp + sizeof (gpointer) */
2084 if (sig->param_count)
2085 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2089 for (i = 0; i < sig->param_count; i++) {
2090 mono_mb_emit_ldloc (mb, tmp_var);
2091 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2092 mono_mb_emit_byte (mb, CEE_STIND_I);
2093 /* tmp = tmp + sizeof (gpointer) */
2094 if (i < (sig->param_count - 1))
2095 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2102 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2106 GString *res = g_string_new ("");
2109 g_string_append (res, prefix);
2110 g_string_append_c (res, '_');
2113 mono_type_get_desc (res, sig->ret, FALSE);
2116 g_string_append (res, "__this__");
2118 for (i = 0; i < sig->param_count; ++i) {
2119 g_string_append_c (res, '_');
2120 mono_type_get_desc (res, sig->params [i], FALSE);
2123 g_string_free (res, FALSE);
2128 * mono_marshal_get_string_encoding:
2130 * Return the string encoding which should be used for a given parameter.
2132 static MonoMarshalNative
2133 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2135 /* First try the parameter marshal info */
2137 if (spec->native == MONO_NATIVE_LPARRAY) {
2138 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2139 return spec->data.array_data.elem_type;
2142 return spec->native;
2146 return MONO_NATIVE_LPSTR;
2148 /* Then try the method level marshal info */
2149 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2150 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2151 return MONO_NATIVE_LPSTR;
2152 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2153 return MONO_NATIVE_LPWSTR;
2154 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2156 return MONO_NATIVE_LPWSTR;
2158 return MONO_NATIVE_LPSTR;
2161 return MONO_NATIVE_LPSTR;
2165 static MonoMarshalConv
2166 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2168 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2171 case MONO_NATIVE_LPWSTR:
2172 return MONO_MARSHAL_CONV_STR_LPWSTR;
2173 case MONO_NATIVE_LPSTR:
2174 return MONO_MARSHAL_CONV_STR_LPSTR;
2175 case MONO_NATIVE_LPTSTR:
2176 return MONO_MARSHAL_CONV_STR_LPTSTR;
2177 case MONO_NATIVE_BSTR:
2178 return MONO_MARSHAL_CONV_STR_BSTR;
2184 static MonoMarshalConv
2185 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2187 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2190 case MONO_NATIVE_LPWSTR:
2191 return MONO_MARSHAL_CONV_SB_LPWSTR;
2193 case MONO_NATIVE_LPSTR:
2194 return MONO_MARSHAL_CONV_SB_LPSTR;
2196 case MONO_NATIVE_LPTSTR:
2197 return MONO_MARSHAL_CONV_SB_LPTSTR;
2204 static MonoMarshalConv
2205 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2207 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2212 case MONO_NATIVE_LPWSTR:
2214 return MONO_MARSHAL_CONV_LPWSTR_STR;
2215 case MONO_NATIVE_LPSTR:
2216 return MONO_MARSHAL_CONV_LPSTR_STR;
2217 case MONO_NATIVE_LPTSTR:
2218 return MONO_MARSHAL_CONV_LPTSTR_STR;
2219 case MONO_NATIVE_BSTR:
2220 return MONO_MARSHAL_CONV_BSTR_STR;
2226 static MonoMarshalConv
2227 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2229 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2234 case MONO_NATIVE_LPWSTR:
2236 * mono_string_builder_to_utf16 does not allocate a
2237 * new buffer, so no need to free it.
2240 return MONO_MARSHAL_CONV_LPWSTR_SB;
2241 case MONO_NATIVE_LPSTR:
2242 return MONO_MARSHAL_CONV_LPSTR_SB;
2244 case MONO_NATIVE_LPTSTR:
2245 return MONO_MARSHAL_CONV_LPTSTR_SB;
2253 * Return whenever a field of a native structure or an array member needs to
2257 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2259 MonoMarshalNative encoding;
2260 MonoMarshalConv conv;
2263 case MONO_TYPE_VALUETYPE:
2264 /* FIXME: Optimize this */
2266 case MONO_TYPE_OBJECT:
2267 case MONO_TYPE_CLASS:
2268 if (t->data.klass == mono_defaults.stringbuilder_class) {
2270 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2274 case MONO_TYPE_STRING:
2275 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2276 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2283 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2286 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2289 mono_marshal_lock ();
2292 g_hash_table_new (hash_func, equal_func);
2293 mono_memory_barrier ();
2296 mono_marshal_unlock ();
2302 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2304 return get_cache (var, hash_func, equal_func);
2308 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2312 mono_marshal_lock ();
2313 res = g_hash_table_lookup (cache, key);
2314 mono_marshal_unlock ();
2318 /* Create the method from the builder and place it in the cache */
2320 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2321 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2326 mono_marshal_lock ();
2327 res = g_hash_table_lookup (cache, key);
2328 mono_marshal_unlock ();
2331 newm = mono_mb_create_method (mb, sig, max_stack);
2332 mono_marshal_lock ();
2333 res = g_hash_table_lookup (cache, key);
2336 g_hash_table_insert (cache, key, res);
2337 mono_marshal_set_wrapper_info (res, key);
2338 mono_marshal_unlock ();
2340 mono_marshal_unlock ();
2341 mono_free_method (newm);
2349 static inline MonoMethod*
2350 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2352 MonoMethod *res = NULL;
2353 MonoRemotingMethods *wrps;
2355 mono_marshal_lock ();
2356 if (method->klass->image->remoting_invoke_cache)
2357 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2362 switch (wrapper_type) {
2363 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2364 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2365 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2366 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2370 /* it is important to do the unlock after the load from wrps, since in
2371 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2372 * to take the loader lock and some other thread may set the fields.
2374 mono_marshal_unlock ();
2378 /* Create the method from the builder and place it in the cache */
2379 static inline MonoMethod*
2380 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2381 MonoMethodSignature *sig, int max_stack)
2383 MonoMethod **res = NULL;
2384 MonoRemotingMethods *wrps;
2385 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2387 mono_marshal_lock ();
2388 wrps = g_hash_table_lookup (cache, key);
2390 wrps = g_new0 (MonoRemotingMethods, 1);
2391 g_hash_table_insert (cache, key, wrps);
2394 switch (mb->method->wrapper_type) {
2395 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2396 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2397 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2398 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2399 default: g_assert_not_reached (); break;
2401 mono_marshal_unlock ();
2405 newm = mono_mb_create_method (mb, sig, max_stack);
2407 mono_marshal_lock ();
2410 mono_marshal_set_wrapper_info (*res, key);
2411 mono_marshal_unlock ();
2413 mono_marshal_unlock ();
2414 mono_free_method (newm);
2422 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2426 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2429 res = mono_method_get_wrapper_data (wrapper, 1);
2436 * mono_marshal_get_wrapper_info:
2438 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2441 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2443 g_assert (wrapper->wrapper_type);
2445 return mono_method_get_wrapper_data (wrapper, 1);
2449 * mono_marshal_set_wrapper_info:
2451 * Store an arbitrary pointer inside the wrapper which is retrievable by
2452 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2453 * wrapper (method->wrapper_type).
2456 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2460 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2463 datav = ((MonoMethodWrapper *)method)->method_data;
2468 * get_wrapper_target_class:
2470 * Return the class where a wrapper method should be placed.
2473 get_wrapper_target_class (MonoImage *image)
2479 * - can't put all wrappers into an mscorlib class, because they reference
2480 * metadata (signature) so they should be put into the same image as the
2481 * method they wrap, so they are unloaded together.
2482 * - putting them into a class with a type initalizer could cause the
2483 * initializer to be executed which can be a problem if the wrappers are
2485 * - putting them into an inflated class can cause problems if the the
2486 * class is deleted because it references an image which is unloaded.
2487 * To avoid these problems, we put the wrappers into the <Module> class of
2491 klass = ((MonoDynamicImage*)image)->wrappers_type;
2493 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2500 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2502 MonoMethodSignature *sig;
2503 MonoMethodBuilder *mb;
2509 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2510 !strcmp (method->name, "BeginInvoke"));
2512 sig = mono_signature_no_pinvoke (method);
2514 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2515 (GHashFunc)mono_signature_hash,
2516 (GCompareFunc)mono_metadata_signature_equal);
2517 if ((res = mono_marshal_find_in_cache (cache, sig)))
2520 g_assert (sig->hasthis);
2522 name = mono_signature_to_name (sig, "begin_invoke");
2523 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2526 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2528 mono_mb_emit_ldarg (mb, 0);
2529 mono_mb_emit_ldloc (mb, params_var);
2530 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2531 mono_mb_emit_byte (mb, CEE_RET);
2533 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2539 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2541 MonoDomain *domain = mono_domain_get ();
2542 MonoAsyncResult *ares;
2543 MonoMethod *method = NULL;
2544 MonoMethodSignature *sig;
2545 MonoMethodMessage *msg;
2546 MonoObject *res, *exc;
2547 MonoArray *out_args;
2550 g_assert (delegate);
2552 if (!delegate->method_info) {
2553 g_assert (delegate->method);
2554 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2557 if (!delegate->method_info || !delegate->method_info->method)
2558 g_assert_not_reached ();
2560 klass = delegate->object.vtable->klass;
2562 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2563 g_assert (method != NULL);
2565 sig = mono_signature_no_pinvoke (method);
2567 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2569 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2571 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."));
2575 if (ares->async_delegate != (MonoObject*)delegate) {
2576 mono_raise_exception (mono_get_exception_invalid_operation (
2577 "The IAsyncResult object provided does not match this delegate."));
2581 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2582 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2583 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2584 mono_message_init (domain, msg, delegate->method_info, NULL);
2585 msg->call_type = CallType_EndInvoke;
2586 MONO_OBJECT_SETREF (msg, async_result, ares);
2587 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2589 res = mono_thread_pool_finish (ares, &out_args, &exc);
2593 if (((MonoException*)exc)->stack_trace) {
2594 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2596 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2598 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2601 mono_raise_exception ((MonoException*)exc);
2604 mono_method_return_message_restore (method, params, out_args);
2609 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2611 MonoType *t = mono_type_get_underlying_type (return_type);
2613 if (return_type->byref)
2614 return_type = &mono_defaults.int_class->byval_arg;
2617 case MONO_TYPE_VOID:
2618 g_assert_not_reached ();
2621 case MONO_TYPE_STRING:
2622 case MONO_TYPE_CLASS:
2623 case MONO_TYPE_OBJECT:
2624 case MONO_TYPE_ARRAY:
2625 case MONO_TYPE_SZARRAY:
2629 case MONO_TYPE_BOOLEAN:
2632 case MONO_TYPE_CHAR:
2642 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2643 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2645 case MONO_TYPE_GENERICINST:
2646 if (!mono_type_generic_inst_is_valuetype (t))
2649 case MONO_TYPE_VALUETYPE: {
2650 MonoClass *klass = mono_class_from_mono_type (return_type);
2651 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2652 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2656 g_warning ("type 0x%x not handled", return_type->type);
2657 g_assert_not_reached ();
2660 mono_mb_emit_byte (mb, CEE_RET);
2664 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2666 MonoMethodSignature *sig;
2667 MonoMethodBuilder *mb;
2673 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2674 !strcmp (method->name, "EndInvoke"));
2676 sig = mono_signature_no_pinvoke (method);
2678 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2679 (GHashFunc)mono_signature_hash,
2680 (GCompareFunc)mono_metadata_signature_equal);
2681 if ((res = mono_marshal_find_in_cache (cache, sig)))
2684 g_assert (sig->hasthis);
2686 name = mono_signature_to_name (sig, "end_invoke");
2687 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2690 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2692 mono_mb_emit_ldarg (mb, 0);
2693 mono_mb_emit_ldloc (mb, params_var);
2694 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2696 if (sig->ret->type == MONO_TYPE_VOID) {
2697 mono_mb_emit_byte (mb, CEE_POP);
2698 mono_mb_emit_byte (mb, CEE_RET);
2700 mono_mb_emit_restore_result (mb, sig->ret);
2702 res = mono_mb_create_and_cache (cache, sig,
2703 mb, sig, sig->param_count + 16);
2710 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2712 MonoMethodMessage *msg;
2713 MonoTransparentProxy *this;
2714 MonoObject *res, *exc;
2715 MonoArray *out_args;
2717 this = *((MonoTransparentProxy **)params [0]);
2720 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2722 /* skip the this pointer */
2725 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2728 MonoMethodSignature *sig = mono_method_signature (method);
2729 int count = sig->param_count;
2730 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2732 for (i=0; i<count; i++) {
2733 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2734 if (class->valuetype) {
2735 if (sig->params [i]->byref) {
2736 mparams[i] = *((gpointer *)params [i]);
2738 /* runtime_invoke expects a boxed instance */
2739 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2740 mparams[i] = mono_nullable_box (params [i], class);
2742 mparams[i] = params [i];
2745 mparams[i] = *((gpointer**)params [i]);
2749 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2752 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2754 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2757 mono_raise_exception ((MonoException *)exc);
2759 mono_method_return_message_restore (method, params, out_args);
2765 mono_marshal_get_remoting_invoke (MonoMethod *method)
2767 MonoMethodSignature *sig;
2768 MonoMethodBuilder *mb;
2774 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2777 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2778 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2779 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2780 g_assert (vtable); /*FIXME do proper error handling*/
2782 if (!vtable->remote) {
2784 return mono_cominterop_get_invoke (method);
2786 g_assert_not_reached ();
2791 sig = mono_signature_no_pinvoke (method);
2793 /* we cant remote methods without this pointer */
2797 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2800 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2801 mb->method->save_lmf = 1;
2803 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2805 mono_mb_emit_ptr (mb, method);
2806 mono_mb_emit_ldloc (mb, params_var);
2807 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2808 emit_thread_interrupt_checkpoint (mb);
2810 if (sig->ret->type == MONO_TYPE_VOID) {
2811 mono_mb_emit_byte (mb, CEE_POP);
2812 mono_mb_emit_byte (mb, CEE_RET);
2814 mono_mb_emit_restore_result (mb, sig->ret);
2817 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2823 /* mono_get_xdomain_marshal_type()
2824 * Returns the kind of marshalling that a type needs for cross domain calls.
2826 static MonoXDomainMarshalType
2827 mono_get_xdomain_marshal_type (MonoType *t)
2830 case MONO_TYPE_VOID:
2831 g_assert_not_reached ();
2835 case MONO_TYPE_BOOLEAN:
2838 case MONO_TYPE_CHAR:
2845 return MONO_MARSHAL_NONE;
2846 case MONO_TYPE_STRING:
2847 return MONO_MARSHAL_COPY;
2848 case MONO_TYPE_ARRAY:
2849 case MONO_TYPE_SZARRAY: {
2850 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2851 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2852 return MONO_MARSHAL_COPY;
2857 return MONO_MARSHAL_SERIALIZE;
2861 /* mono_marshal_xdomain_copy_value
2862 * Makes a copy of "val" suitable for the current domain.
2865 mono_marshal_xdomain_copy_value (MonoObject *val)
2868 if (val == NULL) return NULL;
2870 domain = mono_domain_get ();
2872 switch (mono_object_class (val)->byval_arg.type) {
2873 case MONO_TYPE_VOID:
2874 g_assert_not_reached ();
2878 case MONO_TYPE_BOOLEAN:
2881 case MONO_TYPE_CHAR:
2887 case MONO_TYPE_R8: {
2888 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2890 case MONO_TYPE_STRING: {
2891 MonoString *str = (MonoString *) val;
2892 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2894 case MONO_TYPE_ARRAY:
2895 case MONO_TYPE_SZARRAY: {
2897 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2898 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2899 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2900 if (mt == MONO_MARSHAL_COPY) {
2901 int i, len = mono_array_length (acopy);
2902 for (i = 0; i < len; i++) {
2903 MonoObject *item = mono_array_get (acopy, gpointer, i);
2904 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2907 return (MonoObject *) acopy;
2911 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2912 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2913 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2914 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2915 newsb->length = oldsb->length;
2916 newsb->max_capacity = (gint32)0x7fffffff;
2917 return (MonoObject *) newsb;
2922 /* mono_marshal_xdomain_copy_out_value()
2923 * Copies the contents of the src instance into the dst instance. src and dst
2924 * must have the same type, and if they are arrays, the same size.
2927 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2929 if (src == NULL || dst == NULL) return;
2931 g_assert (mono_object_class (src) == mono_object_class (dst));
2933 switch (mono_object_class (src)->byval_arg.type) {
2934 case MONO_TYPE_ARRAY:
2935 case MONO_TYPE_SZARRAY: {
2936 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2937 if (mt == MONO_MARSHAL_SERIALIZE) return;
2938 if (mt == MONO_MARSHAL_COPY) {
2939 int i, len = mono_array_length ((MonoArray *)dst);
2940 for (i = 0; i < len; i++) {
2941 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2942 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2945 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2951 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2952 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2953 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2955 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)));
2956 dst_sb->cached_str = NULL;
2957 dst_sb->length = src_sb->length;
2962 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2964 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2965 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2969 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2971 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2974 /* mono_marshal_supports_fast_xdomain()
2975 * Returns TRUE if the method can use the fast xdomain wrapper.
2978 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2980 return !method->klass->contextbound &&
2981 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2985 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2987 MonoDomain *current_domain = mono_domain_get ();
2988 MonoDomain *domain = mono_domain_get_by_id (id);
2990 if (!domain || !mono_domain_set (domain, FALSE))
2991 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2994 mono_thread_push_appdomain_ref (domain);
2996 mono_thread_pop_appdomain_ref ();
2998 return current_domain->domain_id;
3002 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3004 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3007 /* mono_marshal_emit_load_domain_method ()
3008 * Loads into the stack a pointer to the code of the provided method for
3009 * the current domain.
3012 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3014 /* We need a pointer to the method for the running domain (not the domain
3015 * that compiles the method).
3017 mono_mb_emit_ptr (mb, method);
3018 mono_mb_emit_icall (mb, mono_compile_method);
3021 /* mono_marshal_check_domain_image ()
3022 * Returns TRUE if the image is loaded in the specified
3023 * application domain.
3026 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3031 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3035 mono_domain_assemblies_lock (domain);
3036 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3038 if (ass->image == image)
3041 mono_domain_assemblies_unlock (domain);
3046 /* mono_marshal_get_xappdomain_dispatch ()
3047 * Generates a method that dispatches a method call from another domain into
3048 * the current domain.
3051 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3053 MonoMethodSignature *sig, *csig;
3054 MonoMethodBuilder *mb;
3056 int i, j, param_index, copy_locals_base;
3057 MonoClass *ret_class = NULL;
3058 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3059 MonoExceptionClause *main_clause;
3061 gboolean copy_return;
3063 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3066 sig = mono_method_signature (method);
3067 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3070 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3071 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3072 csig->params [j++] = &byte_array_class->this_arg;
3073 csig->params [j++] = &byte_array_class->this_arg;
3074 for (i = 0; i < sig->param_count; i++) {
3075 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3076 csig->params [j++] = sig->params [i];
3079 csig->ret = sig->ret;
3081 csig->ret = &mono_defaults.void_class->byval_arg;
3083 csig->hasthis = FALSE;
3085 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3086 mb->method->save_lmf = 1;
3090 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3091 if (complex_count > 0)
3092 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3093 if (sig->ret->type != MONO_TYPE_VOID) {
3094 loc_return = mono_mb_add_local (mb, sig->ret);
3095 ret_class = mono_class_from_mono_type (sig->ret);
3100 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3101 main_clause->try_offset = mono_mb_get_label (mb);
3103 /* Clean the call context */
3105 mono_mb_emit_byte (mb, CEE_LDNULL);
3106 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3107 mono_mb_emit_byte (mb, CEE_POP);
3109 /* Deserialize call data */
3111 mono_mb_emit_ldarg (mb, 1);
3112 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3113 mono_mb_emit_byte (mb, CEE_DUP);
3114 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3116 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3117 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3119 if (complex_count > 0)
3120 mono_mb_emit_stloc (mb, loc_array);
3122 mono_mb_emit_byte (mb, CEE_POP);
3124 mono_mb_patch_short_branch (mb, pos);
3126 /* Get the target object */
3128 mono_mb_emit_ldarg (mb, 0);
3129 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3131 /* Load the arguments */
3133 copy_locals_base = mb->locals;
3134 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3136 for (i = 0; i < sig->param_count; i++) {
3137 MonoType *pt = sig->params [i];
3138 MonoClass *pclass = mono_class_from_mono_type (pt);
3139 switch (marshal_types [i]) {
3140 case MONO_MARSHAL_SERIALIZE: {
3141 /* take the value from the serialized array */
3142 mono_mb_emit_ldloc (mb, loc_array);
3143 mono_mb_emit_icon (mb, j++);
3145 if (pclass->valuetype) {
3146 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3147 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3149 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3152 if (pclass->valuetype) {
3153 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3154 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3155 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3157 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3158 if (pclass != mono_defaults.object_class) {
3159 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3165 case MONO_MARSHAL_COPY_OUT: {
3166 /* Keep a local copy of the value since we need to copy it back after the call */
3167 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3168 mono_mb_emit_ldarg (mb, param_index++);
3169 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3170 mono_mb_emit_byte (mb, CEE_DUP);
3171 mono_mb_emit_stloc (mb, copy_local);
3174 case MONO_MARSHAL_COPY: {
3175 mono_mb_emit_ldarg (mb, param_index);
3177 mono_mb_emit_byte (mb, CEE_DUP);
3178 mono_mb_emit_byte (mb, CEE_DUP);
3179 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3180 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3181 mono_mb_emit_byte (mb, CEE_STIND_REF);
3183 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3188 case MONO_MARSHAL_NONE:
3189 mono_mb_emit_ldarg (mb, param_index++);
3194 /* Make the call to the real object */
3196 emit_thread_force_interrupt_checkpoint (mb);
3198 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3200 if (sig->ret->type != MONO_TYPE_VOID)
3201 mono_mb_emit_stloc (mb, loc_return);
3203 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3207 for (i = 0; i < sig->param_count; i++) {
3208 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3209 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3210 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3211 mono_mb_emit_ldarg (mb, param_index);
3212 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3217 /* Serialize the return values */
3219 if (complex_out_count > 0) {
3220 /* Reset parameters in the array that don't need to be serialized back */
3222 for (i = 0; i < sig->param_count; i++) {
3223 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3224 if (!sig->params [i]->byref) {
3225 mono_mb_emit_ldloc (mb, loc_array);
3226 mono_mb_emit_icon (mb, j);
3227 mono_mb_emit_byte (mb, CEE_LDNULL);
3228 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3233 /* Add the return value to the array */
3235 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3236 mono_mb_emit_ldloc (mb, loc_array);
3237 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3238 mono_mb_emit_ldloc (mb, loc_return);
3240 g_assert (ret_class); /*FIXME properly fail here*/
3241 if (ret_class->valuetype) {
3242 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3244 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3249 mono_mb_emit_ldarg (mb, 1);
3250 mono_mb_emit_ldloc (mb, loc_array);
3251 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3252 mono_mb_emit_byte (mb, CEE_STIND_REF);
3253 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3254 mono_mb_emit_ldarg (mb, 1);
3255 mono_mb_emit_ldloc (mb, loc_return);
3256 if (ret_class->valuetype) {
3257 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3259 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3260 mono_mb_emit_byte (mb, CEE_STIND_REF);
3262 mono_mb_emit_ldarg (mb, 1);
3263 mono_mb_emit_byte (mb, CEE_LDNULL);
3264 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3265 mono_mb_emit_byte (mb, CEE_STIND_REF);
3268 mono_mb_emit_ldarg (mb, 2);
3269 mono_mb_emit_byte (mb, CEE_LDNULL);
3270 mono_mb_emit_byte (mb, CEE_STIND_REF);
3271 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3273 /* Main exception catch */
3274 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3275 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3276 main_clause->data.catch_class = mono_defaults.object_class;
3279 main_clause->handler_offset = mono_mb_get_label (mb);
3280 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3281 mono_mb_emit_stloc (mb, loc_serialized_exc);
3282 mono_mb_emit_ldarg (mb, 2);
3283 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3284 mono_mb_emit_byte (mb, CEE_STIND_REF);
3285 mono_mb_emit_branch (mb, CEE_LEAVE);
3286 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3289 mono_mb_patch_branch (mb, pos_leave);
3292 mono_mb_emit_ldloc (mb, loc_return);
3294 mono_mb_emit_byte (mb, CEE_RET);
3296 mono_mb_set_clauses (mb, 1, main_clause);
3298 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3304 /* mono_marshal_get_xappdomain_invoke ()
3305 * Generates a fast remoting wrapper for cross app domain calls.
3308 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3310 MonoMethodSignature *sig;
3311 MonoMethodBuilder *mb;
3313 int i, j, complex_count, complex_out_count, copy_locals_base;
3315 MonoClass *ret_class = NULL;
3316 MonoMethod *xdomain_method;
3317 int ret_marshal_type = MONO_MARSHAL_NONE;
3318 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3319 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3320 int pos, pos_dispatch, pos_noex;
3321 gboolean copy_return = FALSE;
3325 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3328 /* we cant remote methods without this pointer */
3329 if (!mono_method_signature (method)->hasthis)
3332 if (!mono_marshal_supports_fast_xdomain (method))
3333 return mono_marshal_get_remoting_invoke (method);
3335 mono_remoting_marshal_init ();
3337 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3340 sig = mono_signature_no_pinvoke (method);
3342 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3343 mb->method->save_lmf = 1;
3345 /* Count the number of parameters that need to be serialized */
3347 marshal_types = alloca (sizeof (int) * sig->param_count);
3348 complex_count = complex_out_count = 0;
3349 for (i = 0; i < sig->param_count; i++) {
3350 MonoType *ptype = sig->params[i];
3351 int mt = mono_get_xdomain_marshal_type (ptype);
3353 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3354 * the copy will be made by reusing the original object instance
3356 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3357 mt = MONO_MARSHAL_COPY_OUT;
3358 else if (mt == MONO_MARSHAL_SERIALIZE) {
3360 if (ptype->byref) complex_out_count++;
3362 marshal_types [i] = mt;
3365 if (sig->ret->type != MONO_TYPE_VOID) {
3366 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3367 ret_class = mono_class_from_mono_type (sig->ret);
3368 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3373 if (complex_count > 0)
3374 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3375 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3376 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3378 loc_return = mono_mb_add_local (mb, sig->ret);
3379 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3380 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3381 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3382 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3384 /* Save thread domain data */
3386 mono_mb_emit_icall (mb, mono_context_get);
3387 mono_mb_emit_byte (mb, CEE_DUP);
3388 mono_mb_emit_stloc (mb, loc_context);
3390 /* If the thread is not running in the default context, it needs to go
3391 * through the whole remoting sink, since the context is going to change
3393 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3394 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3396 /* Another case in which the fast path can't be used: when the target domain
3397 * has a different image for the same assembly.
3400 /* Get the target domain id */
3402 mono_mb_emit_ldarg (mb, 0);
3403 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3404 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3405 mono_mb_emit_byte (mb, CEE_DUP);
3406 mono_mb_emit_stloc (mb, loc_real_proxy);
3408 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3409 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3410 mono_mb_emit_stloc (mb, loc_domainid);
3412 /* Check if the target domain has the same image for the required assembly */
3414 mono_mb_emit_ldloc (mb, loc_domainid);
3415 mono_mb_emit_ptr (mb, method->klass->image);
3416 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3417 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3419 /* Use the whole remoting sink to dispatch this message */
3421 mono_mb_patch_short_branch (mb, pos);
3423 mono_mb_emit_ldarg (mb, 0);
3424 for (i = 0; i < sig->param_count; i++)
3425 mono_mb_emit_ldarg (mb, i + 1);
3427 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3428 mono_mb_emit_byte (mb, CEE_RET);
3429 mono_mb_patch_short_branch (mb, pos_dispatch);
3431 /* Create the array that will hold the parameters to be serialized */
3433 if (complex_count > 0) {
3434 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 */
3435 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3438 for (i = 0; i < sig->param_count; i++) {
3440 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3441 pclass = mono_class_from_mono_type (sig->params[i]);
3442 mono_mb_emit_byte (mb, CEE_DUP);
3443 mono_mb_emit_icon (mb, j);
3444 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3445 if (sig->params[i]->byref) {
3446 if (pclass->valuetype)
3447 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3449 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3451 if (pclass->valuetype)
3452 mono_mb_emit_op (mb, CEE_BOX, pclass);
3453 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3456 mono_mb_emit_stloc (mb, loc_array);
3458 /* Serialize parameters */
3460 mono_mb_emit_ldloc (mb, loc_array);
3461 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3462 mono_mb_emit_stloc (mb, loc_serialized_data);
3464 mono_mb_emit_byte (mb, CEE_LDNULL);
3465 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3466 mono_mb_emit_stloc (mb, loc_serialized_data);
3471 mono_mb_emit_ldloc (mb, loc_domainid);
3472 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3473 mono_marshal_emit_switch_domain (mb);
3474 mono_mb_emit_stloc (mb, loc_old_domainid);
3476 /* Load the arguments */
3478 mono_mb_emit_ldloc (mb, loc_real_proxy);
3479 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3480 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3482 copy_locals_base = mb->locals;
3483 for (i = 0; i < sig->param_count; i++) {
3484 switch (marshal_types [i]) {
3485 case MONO_MARSHAL_SERIALIZE:
3487 case MONO_MARSHAL_COPY: {
3488 mono_mb_emit_ldarg (mb, i+1);
3489 if (sig->params [i]->byref) {
3490 /* make a local copy of the byref parameter. The real parameter
3491 * will be updated after the xdomain call
3493 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3494 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3495 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3496 mono_mb_emit_stloc (mb, copy_local);
3497 mono_mb_emit_ldloc_addr (mb, copy_local);
3501 case MONO_MARSHAL_COPY_OUT:
3502 case MONO_MARSHAL_NONE:
3503 mono_mb_emit_ldarg (mb, i+1);
3508 /* Make the call to the invoke wrapper in the target domain */
3510 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3511 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3512 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3515 mono_mb_emit_stloc (mb, loc_return);
3519 mono_mb_emit_ldloc (mb, loc_old_domainid);
3520 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3521 mono_marshal_emit_switch_domain (mb);
3522 mono_mb_emit_byte (mb, CEE_POP);
3524 /* Restore thread domain data */
3526 mono_mb_emit_ldloc (mb, loc_context);
3527 mono_mb_emit_icall (mb, mono_context_set);
3529 /* if (loc_serialized_exc != null) ... */
3531 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3532 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3534 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3535 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3536 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3537 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3538 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3539 mono_mb_emit_byte (mb, CEE_THROW);
3540 mono_mb_patch_short_branch (mb, pos_noex);
3542 /* copy back non-serialized output parameters */
3545 for (i = 0; i < sig->param_count; i++) {
3546 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3547 mono_mb_emit_ldarg (mb, i + 1);
3548 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3549 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3550 mono_mb_emit_byte (mb, CEE_STIND_REF);
3553 /* Deserialize out parameters */
3555 if (complex_out_count > 0) {
3556 mono_mb_emit_ldloc (mb, loc_serialized_data);
3557 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3558 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3559 mono_mb_emit_stloc (mb, loc_array);
3561 /* Copy back output parameters and return type */
3564 for (i = 0; i < sig->param_count; i++) {
3565 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3566 if (sig->params[i]->byref) {
3567 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3568 mono_mb_emit_ldarg (mb, i + 1);
3569 mono_mb_emit_ldloc (mb, loc_array);
3570 mono_mb_emit_icon (mb, j);
3571 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3572 if (pclass->valuetype) {
3573 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3574 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3575 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3577 if (pclass != mono_defaults.object_class)
3578 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3579 mono_mb_emit_byte (mb, CEE_STIND_REF);
3585 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3586 mono_mb_emit_ldloc (mb, loc_array);
3587 mono_mb_emit_icon (mb, complex_count);
3588 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3589 if (ret_class->valuetype) {
3590 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3591 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3594 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3595 mono_mb_emit_ldloc (mb, loc_serialized_data);
3596 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3597 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3598 if (ret_class->valuetype) {
3599 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3600 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3601 } else if (ret_class != mono_defaults.object_class) {
3602 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3605 mono_mb_emit_ldloc (mb, loc_serialized_data);
3606 mono_mb_emit_byte (mb, CEE_DUP);
3607 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3608 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3610 mono_mb_patch_short_branch (mb, pos);
3611 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3612 mono_mb_emit_byte (mb, CEE_POP);
3616 mono_mb_emit_ldloc (mb, loc_return);
3617 if (ret_marshal_type == MONO_MARSHAL_COPY)
3618 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3621 mono_mb_emit_byte (mb, CEE_RET);
3623 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3630 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3632 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3633 return mono_marshal_get_xappdomain_invoke (method);
3634 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3636 return mono_cominterop_get_invoke (method);
3638 g_assert_not_reached ();
3641 return mono_marshal_get_remoting_invoke (method);
3647 G_GNUC_UNUSED static gpointer
3648 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3650 if (rp->target_domain_id != -1)
3651 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3653 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3657 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3659 MonoMethodSignature *sig;
3660 MonoMethodBuilder *mb;
3661 MonoMethod *res, *native;
3662 int i, pos, pos_rem;
3666 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3669 /* we cant remote methods without this pointer */
3670 g_assert (mono_method_signature (method)->hasthis);
3672 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3675 sig = mono_signature_no_pinvoke (method);
3677 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3679 for (i = 0; i <= sig->param_count; i++)
3680 mono_mb_emit_ldarg (mb, i);
3682 mono_mb_emit_ldarg (mb, 0);
3683 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3685 if (mono_marshal_supports_fast_xdomain (method)) {
3686 mono_mb_emit_ldarg (mb, 0);
3687 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3689 /* wrapper for cross app domain calls */
3690 native = mono_marshal_get_xappdomain_invoke (method);
3691 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3692 mono_mb_emit_byte (mb, CEE_RET);
3694 mono_mb_patch_branch (mb, pos_rem);
3696 /* wrapper for normal remote calls */
3697 native = mono_marshal_get_remoting_invoke (method);
3698 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3699 mono_mb_emit_byte (mb, CEE_RET);
3702 mono_mb_patch_branch (mb, pos);
3703 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3704 mono_mb_emit_byte (mb, CEE_RET);
3706 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3714 MonoMethodSignature *sig;
3716 } SignatureMethodPair;
3719 signature_method_pair_hash (gconstpointer data)
3721 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3723 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3727 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3729 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3733 free_signature_method_pair (SignatureMethodPair *pair)
3739 * the returned method invokes all methods in a multicast delegate.
3742 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3744 MonoMethodSignature *sig, *static_sig;
3746 MonoMethodBuilder *mb;
3747 MonoMethod *res, *newm;
3749 SignatureMethodPair key;
3750 SignatureMethodPair *new_key;
3751 int local_prev, local_target;
3754 MonoMethod *target_method = NULL;
3755 MonoClass *target_class = NULL;
3756 gboolean callvirt = FALSE;
3759 * If the delegate target is null, and the target method is not static, a virtual
3760 * call is made to that method with the first delegate argument as this. This is
3761 * a non-documented .NET feature.
3763 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3765 target_method = del->method;
3766 if (target_method->is_inflated) {
3767 MonoType *target_type;
3769 g_assert (method->signature->hasthis);
3770 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3771 mono_method_get_context (method));
3772 target_class = mono_class_from_mono_type (target_type);
3774 target_class = del->method->klass;
3778 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3779 !strcmp (method->name, "Invoke"));
3781 sig = mono_signature_no_pinvoke (method);
3784 /* We need to cache the signature+method pair */
3785 mono_marshal_lock ();
3786 if (!method->klass->image->delegate_abstract_invoke_cache)
3787 method->klass->image->delegate_abstract_invoke_cache = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3788 cache = method->klass->image->delegate_abstract_invoke_cache;
3790 key.method = target_method;
3791 res = g_hash_table_lookup (cache, &key);
3792 mono_marshal_unlock ();
3796 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3797 (GHashFunc)mono_signature_hash,
3798 (GCompareFunc)mono_metadata_signature_equal);
3799 if ((res = mono_marshal_find_in_cache (cache, sig)))
3803 static_sig = signature_dup (method->klass->image, sig);
3804 static_sig->hasthis = 0;
3806 name = mono_signature_to_name (sig, "invoke");
3807 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3810 /* allocate local 0 (object) */
3811 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3812 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3814 g_assert (sig->hasthis);
3818 * prev.Invoke( args .. );
3819 * return this.<target>( args .. );
3822 /* this wrapper can be used in unmanaged-managed transitions */
3823 emit_thread_interrupt_checkpoint (mb);
3825 /* get this->prev */
3826 mono_mb_emit_ldarg (mb, 0);
3827 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3828 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3829 mono_mb_emit_stloc (mb, local_prev);
3830 mono_mb_emit_ldloc (mb, local_prev);
3832 /* if prev != null */
3833 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3837 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3838 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3840 mono_mb_emit_ldloc (mb, local_prev);
3841 for (i = 0; i < sig->param_count; i++)
3842 mono_mb_emit_ldarg (mb, i + 1);
3843 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3844 if (sig->ret->type != MONO_TYPE_VOID)
3845 mono_mb_emit_byte (mb, CEE_POP);
3847 /* continued or prev == null */
3848 mono_mb_patch_branch (mb, pos0);
3850 /* get this->target */
3851 mono_mb_emit_ldarg (mb, 0);
3852 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3853 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3854 mono_mb_emit_stloc (mb, local_target);
3856 /* if target != null */
3857 mono_mb_emit_ldloc (mb, local_target);
3858 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3860 /* then call this->method_ptr nonstatic */
3863 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3865 mono_mb_emit_ldloc (mb, local_target);
3866 for (i = 0; i < sig->param_count; ++i)
3867 mono_mb_emit_ldarg (mb, i + 1);
3868 mono_mb_emit_ldarg (mb, 0);
3869 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3870 mono_mb_emit_byte (mb, CEE_LDIND_I );
3871 mono_mb_emit_op (mb, CEE_CALLI, sig);
3873 mono_mb_emit_byte (mb, CEE_RET);
3876 /* else [target == null] call this->method_ptr static */
3877 mono_mb_patch_branch (mb, pos0);
3880 mono_mb_emit_ldarg (mb, 1);
3881 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3882 for (i = 1; i < sig->param_count; ++i)
3883 mono_mb_emit_ldarg (mb, i + 1);
3884 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3886 for (i = 0; i < sig->param_count; ++i)
3887 mono_mb_emit_ldarg (mb, i + 1);
3888 mono_mb_emit_ldarg (mb, 0);
3889 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3890 mono_mb_emit_byte (mb, CEE_LDIND_I );
3891 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3894 mono_mb_emit_byte (mb, CEE_RET);
3897 // From mono_mb_create_and_cache
3898 mb->skip_visibility = 1;
3899 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3900 /*We perform double checked locking, so must fence before publishing*/
3901 mono_memory_barrier ();
3902 mono_marshal_lock ();
3903 res = g_hash_table_lookup (cache, &key);
3906 new_key = g_new0 (SignatureMethodPair, 1);
3908 new_key->method = target_method;
3909 g_hash_table_insert (cache, new_key, res);
3910 mono_marshal_set_wrapper_info (res, new_key);
3911 mono_marshal_unlock ();
3913 mono_marshal_unlock ();
3914 mono_free_method (newm);
3917 mb->skip_visibility = 1;
3918 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3926 * signature_dup_add_this:
3928 * Make a copy of @sig, adding an explicit this argument.
3930 static MonoMethodSignature*
3931 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3933 MonoMethodSignature *res;
3936 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3937 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3938 res->param_count = sig->param_count + 1;
3939 res->hasthis = FALSE;
3940 for (i = sig->param_count - 1; i >= 0; i --)
3941 res->params [i + 1] = sig->params [i];
3942 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3948 MonoMethodSignature *ctor_sig;
3949 MonoMethodSignature *sig;
3952 /* protected by the marshal lock, contains CtorSigPair pointers */
3953 static GSList *strsig_list = NULL;
3955 static MonoMethodSignature *
3956 lookup_string_ctor_signature (MonoMethodSignature *sig)
3958 MonoMethodSignature *callsig;
3962 mono_marshal_lock ();
3964 for (item = strsig_list; item; item = item->next) {
3966 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3967 * because it is lock-free.
3969 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3974 mono_marshal_unlock ();
3978 static MonoMethodSignature *
3979 add_string_ctor_signature (MonoMethod *method)
3981 MonoMethodSignature *callsig;
3984 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3985 callsig->ret = &mono_defaults.string_class->byval_arg;
3986 cs = g_new (CtorSigPair, 1);
3988 cs->ctor_sig = mono_method_signature (method);
3990 mono_marshal_lock ();
3991 strsig_list = g_slist_prepend (strsig_list, cs);
3992 mono_marshal_unlock ();
3997 * mono_marshal_get_string_ctor_signature:
3999 * Return the modified signature used by string ctors (they return the newly created
4002 MonoMethodSignature*
4003 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4005 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4007 sig = add_string_ctor_signature (method);
4013 get_runtime_invoke_type (MonoType *t, gboolean ret)
4016 /* Can't share this with 'I' as that needs another indirection */
4019 if (MONO_TYPE_IS_REFERENCE (t))
4020 return &mono_defaults.object_class->byval_arg;
4023 /* The result needs to be boxed */
4029 return &mono_defaults.sbyte_class->byval_arg;
4031 return &mono_defaults.int16_class->byval_arg;
4033 return &mono_defaults.int32_class->byval_arg;
4035 return &mono_defaults.int64_class->byval_arg;
4036 case MONO_TYPE_BOOLEAN:
4037 return &mono_defaults.sbyte_class->byval_arg;
4038 case MONO_TYPE_CHAR:
4039 return &mono_defaults.int16_class->byval_arg;
4042 return &mono_defaults.int_class->byval_arg;
4043 case MONO_TYPE_VALUETYPE:
4044 if (t->data.klass->enumtype) {
4045 t = mono_class_enum_basetype (t->data.klass);
4055 * mono_marshal_get_runtime_invoke_sig:
4057 * Return a common signature used for sharing runtime invoke wrappers.
4059 static MonoMethodSignature*
4060 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4062 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4065 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4066 for (i = 0; i < res->param_count; ++i)
4067 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4073 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4075 /* Can't share wrappers which return a vtype since it needs to be boxed */
4076 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))
4079 return mono_metadata_signature_equal (sig1, sig2);
4083 * generates IL code for the runtime invoke function
4084 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4086 * we also catch exceptions if exc != null
4087 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4088 * it means that the compiled code for METHOD does not have to be looked up
4089 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4090 * its METHOD argument.
4093 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4095 MonoMethodSignature *sig, *csig, *callsig;
4096 MonoExceptionClause *clause;
4097 MonoMethodBuilder *mb;
4098 GHashTable *cache = NULL;
4099 MonoClass *target_klass;
4100 MonoMethod *res = NULL;
4101 static MonoString *string_dummy = NULL;
4102 static MonoMethodSignature *cctor_signature = NULL;
4103 static MonoMethodSignature *finalize_signature = NULL;
4106 gboolean need_direct_wrapper = FALSE;
4107 int *tmp_nullable_locals;
4111 if (!cctor_signature) {
4112 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4113 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4115 if (!finalize_signature) {
4116 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4117 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4118 finalize_signature->hasthis = 1;
4122 need_direct_wrapper = TRUE;
4125 * Use a separate cache indexed by methods to speed things up and to avoid the
4126 * boundless mempool growth caused by the signature_dup stuff below.
4129 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4131 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4132 res = mono_marshal_find_in_cache (cache, method);
4136 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4137 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4139 * Array Get/Set/Address methods. The JIT implements them using inline code
4140 * so we need to create an invoke wrapper which calls the method directly.
4142 need_direct_wrapper = TRUE;
4145 if (method->string_ctor) {
4146 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4148 callsig = add_string_ctor_signature (method);
4149 /* Can't share this as we push a string as this */
4150 need_direct_wrapper = TRUE;
4152 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4154 * Valuetype methods receive a managed pointer as the this argument.
4155 * Create a new signature to reflect this.
4157 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4158 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4159 need_direct_wrapper = TRUE;
4161 if (method->dynamic)
4162 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4164 callsig = mono_method_signature (method);
4168 target_klass = get_wrapper_target_class (method->klass->image);
4170 /* Try to share wrappers for non-corlib methods with simple signatures */
4171 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4172 callsig = cctor_signature;
4173 target_klass = mono_defaults.object_class;
4174 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4175 callsig = finalize_signature;
4176 target_klass = mono_defaults.object_class;
4179 if (need_direct_wrapper) {
4180 /* Already searched at the start */
4182 MonoMethodSignature *tmp_sig;
4184 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4186 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4187 (GHashFunc)mono_signature_hash,
4188 (GCompareFunc)runtime_invoke_signature_equal);
4190 /* from mono_marshal_find_in_cache */
4191 mono_marshal_lock ();
4192 res = g_hash_table_lookup (cache, callsig);
4193 mono_marshal_unlock ();
4200 /* Make a copy of the signature from the image mempool */
4202 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4206 /* to make it work with our special string constructors */
4207 if (!string_dummy) {
4208 MONO_GC_REGISTER_ROOT (string_dummy);
4209 string_dummy = mono_string_new_wrapper ("dummy");
4212 sig = mono_method_signature (method);
4214 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4216 csig->ret = &mono_defaults.object_class->byval_arg;
4217 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4218 csig->params [0] = callsig->params [0];
4220 csig->params [0] = &mono_defaults.object_class->byval_arg;
4221 csig->params [1] = &mono_defaults.int_class->byval_arg;
4222 csig->params [2] = &mono_defaults.int_class->byval_arg;
4223 csig->params [3] = &mono_defaults.int_class->byval_arg;
4225 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4226 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4229 /* allocate local 0 (object) tmp */
4230 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4231 /* allocate local 1 (object) exc */
4232 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4234 /* cond set *exc to null */
4235 mono_mb_emit_byte (mb, CEE_LDARG_2);
4236 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4237 mono_mb_emit_byte (mb, 3);
4238 mono_mb_emit_byte (mb, CEE_LDARG_2);
4239 mono_mb_emit_byte (mb, CEE_LDNULL);
4240 mono_mb_emit_byte (mb, CEE_STIND_REF);
4242 emit_thread_force_interrupt_checkpoint (mb);
4245 g_assert (sig->hasthis);
4246 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4250 if (method->string_ctor) {
4251 mono_mb_emit_ptr (mb, string_dummy);
4253 mono_mb_emit_ldarg (mb, 0);
4257 tmp_nullable_locals = g_new0 (int, sig->param_count);
4259 for (i = 0; i < sig->param_count; i++) {
4260 MonoType *t = sig->params [i];
4263 mono_mb_emit_ldarg (mb, 1);
4265 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4266 mono_mb_emit_byte (mb, CEE_ADD);
4270 mono_mb_emit_byte (mb, CEE_LDIND_I);
4271 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4272 * So to make this work we unbox it to a local variablee and push a reference to that.
4274 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4275 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4277 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4278 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4279 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4284 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4285 type = sig->params [i]->type;
4289 case MONO_TYPE_BOOLEAN:
4293 case MONO_TYPE_CHAR:
4302 mono_mb_emit_byte (mb, CEE_LDIND_I);
4303 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4305 case MONO_TYPE_STRING:
4306 case MONO_TYPE_CLASS:
4307 case MONO_TYPE_ARRAY:
4309 case MONO_TYPE_SZARRAY:
4310 case MONO_TYPE_OBJECT:
4311 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4313 case MONO_TYPE_GENERICINST:
4314 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4315 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4320 case MONO_TYPE_VALUETYPE:
4321 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4322 type = mono_class_enum_basetype (t->data.klass)->type;
4325 mono_mb_emit_byte (mb, CEE_LDIND_I);
4326 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4327 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4328 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4329 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4331 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4335 g_assert_not_reached ();
4340 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4341 } else if (need_direct_wrapper) {
4342 mono_mb_emit_op (mb, CEE_CALL, method);
4344 mono_mb_emit_ldarg (mb, 3);
4345 mono_mb_emit_calli (mb, callsig);
4348 if (sig->ret->byref) {
4350 g_assert_not_reached ();
4353 switch (sig->ret->type) {
4354 case MONO_TYPE_VOID:
4355 if (!method->string_ctor)
4356 mono_mb_emit_byte (mb, CEE_LDNULL);
4358 case MONO_TYPE_BOOLEAN:
4359 case MONO_TYPE_CHAR:
4372 case MONO_TYPE_VALUETYPE:
4373 case MONO_TYPE_TYPEDBYREF:
4374 case MONO_TYPE_GENERICINST:
4375 /* box value types */
4376 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4378 case MONO_TYPE_STRING:
4379 case MONO_TYPE_CLASS:
4380 case MONO_TYPE_ARRAY:
4381 case MONO_TYPE_SZARRAY:
4382 case MONO_TYPE_OBJECT:
4386 /* The result is an IntPtr */
4387 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4390 g_assert_not_reached ();
4393 mono_mb_emit_stloc (mb, 0);
4395 /* Convert back nullable-byref arguments */
4396 for (i = 0; i < sig->param_count; i++) {
4397 MonoType *t = sig->params [i];
4400 * Box the result and put it back into the array, the caller will have
4401 * to obtain it from there.
4403 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4404 mono_mb_emit_ldarg (mb, 1);
4405 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4406 mono_mb_emit_byte (mb, CEE_ADD);
4408 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4409 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4411 mono_mb_emit_byte (mb, CEE_STIND_REF);
4415 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4417 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4418 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4419 clause->try_len = mono_mb_get_label (mb);
4422 clause->data.filter_offset = mono_mb_get_label (mb);
4424 mono_mb_emit_byte (mb, CEE_POP);
4425 mono_mb_emit_byte (mb, CEE_LDARG_2);
4426 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4427 mono_mb_emit_byte (mb, CEE_PREFIX1);
4428 mono_mb_emit_byte (mb, CEE_CGT_UN);
4429 mono_mb_emit_byte (mb, CEE_PREFIX1);
4430 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4432 clause->handler_offset = mono_mb_get_label (mb);
4435 /* store exception */
4436 mono_mb_emit_stloc (mb, 1);
4438 mono_mb_emit_byte (mb, CEE_LDARG_2);
4439 mono_mb_emit_ldloc (mb, 1);
4440 mono_mb_emit_byte (mb, CEE_STIND_REF);
4442 mono_mb_emit_byte (mb, CEE_LDNULL);
4443 mono_mb_emit_stloc (mb, 0);
4445 mono_mb_emit_branch (mb, CEE_LEAVE);
4447 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4449 mono_mb_set_clauses (mb, 1, clause);
4452 mono_mb_patch_branch (mb, pos);
4453 mono_mb_emit_ldloc (mb, 0);
4454 mono_mb_emit_byte (mb, CEE_RET);
4456 g_free (tmp_nullable_locals);
4458 if (need_direct_wrapper) {
4459 mb->skip_visibility = 1;
4460 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4462 /* taken from mono_mb_create_and_cache */
4463 mono_marshal_lock ();
4464 res = g_hash_table_lookup (cache, callsig);
4465 mono_marshal_unlock ();
4467 /* Somebody may have created it before us */
4470 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4472 mono_marshal_lock ();
4473 res = g_hash_table_lookup (cache, callsig);
4476 g_hash_table_insert (cache, callsig, res);
4477 /* Can't insert it into wrapper_hash since the key is a signature */
4478 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4480 mono_free_method (newm);
4482 mono_marshal_unlock ();
4485 /* end mono_mb_create_and_cache */
4494 * mono_marshal_get_runtime_invoke_dynamic:
4496 * Return a method which can be used to invoke managed methods from native code
4498 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4499 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4500 * ARGS should point to an architecture specific structure containing
4501 * the arguments and space for the return value.
4502 * The other arguments are the same as for runtime_invoke (), except that
4503 * ARGS should contain the this argument too.
4504 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4505 * is only one copy of it, which is useful in full-aot.
4508 mono_marshal_get_runtime_invoke_dynamic (void)
4510 static MonoMethod *method;
4511 MonoMethodSignature *csig;
4512 MonoExceptionClause *clause;
4513 MonoMethodBuilder *mb;
4520 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4522 csig->ret = &mono_defaults.void_class->byval_arg;
4523 csig->params [0] = &mono_defaults.int_class->byval_arg;
4524 csig->params [1] = &mono_defaults.int_class->byval_arg;
4525 csig->params [2] = &mono_defaults.int_class->byval_arg;
4526 csig->params [3] = &mono_defaults.int_class->byval_arg;
4528 name = g_strdup ("runtime_invoke_dynamic");
4529 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4532 /* allocate local 0 (object) tmp */
4533 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4534 /* allocate local 1 (object) exc */
4535 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4537 /* cond set *exc to null */
4538 mono_mb_emit_byte (mb, CEE_LDARG_1);
4539 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4540 mono_mb_emit_byte (mb, 3);
4541 mono_mb_emit_byte (mb, CEE_LDARG_1);
4542 mono_mb_emit_byte (mb, CEE_LDNULL);
4543 mono_mb_emit_byte (mb, CEE_STIND_REF);
4545 emit_thread_force_interrupt_checkpoint (mb);
4547 mono_mb_emit_byte (mb, CEE_LDARG_0);
4548 mono_mb_emit_byte (mb, CEE_LDARG_2);
4549 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4550 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4552 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4554 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4555 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4556 clause->try_len = mono_mb_get_label (mb);
4559 clause->data.filter_offset = mono_mb_get_label (mb);
4561 mono_mb_emit_byte (mb, CEE_POP);
4562 mono_mb_emit_byte (mb, CEE_LDARG_1);
4563 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4564 mono_mb_emit_byte (mb, CEE_PREFIX1);
4565 mono_mb_emit_byte (mb, CEE_CGT_UN);
4566 mono_mb_emit_byte (mb, CEE_PREFIX1);
4567 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4569 clause->handler_offset = mono_mb_get_label (mb);
4572 /* store exception */
4573 mono_mb_emit_stloc (mb, 1);
4575 mono_mb_emit_byte (mb, CEE_LDARG_1);
4576 mono_mb_emit_ldloc (mb, 1);
4577 mono_mb_emit_byte (mb, CEE_STIND_REF);
4579 mono_mb_emit_byte (mb, CEE_LDNULL);
4580 mono_mb_emit_stloc (mb, 0);
4582 /* Check for the abort exception */
4583 mono_mb_emit_ldloc (mb, 1);
4584 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4585 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4587 /* Delay the abort exception */
4588 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4590 mono_mb_patch_short_branch (mb, posna);
4591 mono_mb_emit_branch (mb, CEE_LEAVE);
4593 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4595 mono_mb_set_clauses (mb, 1, clause);
4598 mono_mb_patch_branch (mb, pos);
4599 //mono_mb_emit_ldloc (mb, 0);
4600 mono_mb_emit_byte (mb, CEE_RET);
4602 mono_loader_lock ();
4603 /* double-checked locking */
4605 method = mono_mb_create_method (mb, csig, 16);
4607 mono_loader_unlock ();
4615 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4617 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4618 klass->name_space, klass->name);
4620 mono_mb_emit_exception_marshal_directive (mb, msg);
4624 * mono_marshal_get_ldfld_remote_wrapper:
4625 * @klass: The return type
4627 * This method generates a wrapper for calling mono_load_remote_field_new.
4628 * The return type is ignored for now, as mono_load_remote_field_new () always
4629 * returns an object. In the future, to optimize some codepaths, we might
4630 * call a different function that takes a pointer to a valuetype, instead.
4633 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4635 MonoMethodSignature *sig, *csig;
4636 MonoMethodBuilder *mb;
4638 static MonoMethod* cached = NULL;
4640 mono_marshal_lock ();
4642 mono_marshal_unlock ();
4645 mono_marshal_unlock ();
4647 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4649 mb->method->save_lmf = 1;
4651 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4652 sig->params [0] = &mono_defaults.object_class->byval_arg;
4653 sig->params [1] = &mono_defaults.int_class->byval_arg;
4654 sig->params [2] = &mono_defaults.int_class->byval_arg;
4655 sig->ret = &mono_defaults.object_class->byval_arg;
4657 mono_mb_emit_ldarg (mb, 0);
4658 mono_mb_emit_ldarg (mb, 1);
4659 mono_mb_emit_ldarg (mb, 2);
4661 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4662 csig->params [0] = &mono_defaults.object_class->byval_arg;
4663 csig->params [1] = &mono_defaults.int_class->byval_arg;
4664 csig->params [2] = &mono_defaults.int_class->byval_arg;
4665 csig->ret = &mono_defaults.object_class->byval_arg;
4668 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4669 emit_thread_interrupt_checkpoint (mb);
4671 mono_mb_emit_byte (mb, CEE_RET);
4673 mono_marshal_lock ();
4675 mono_marshal_unlock ();
4678 newm = mono_mb_create_method (mb, sig, 4);
4679 mono_marshal_lock ();
4684 mono_marshal_unlock ();
4686 mono_marshal_unlock ();
4687 mono_free_method (newm);
4696 * mono_marshal_get_ldfld_wrapper:
4697 * @type: the type of the field
4699 * This method generates a function which can be use to load a field with type
4700 * @type from an object. The generated function has the following signature:
4701 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4704 mono_marshal_get_ldfld_wrapper (MonoType *type)
4706 MonoMethodSignature *sig;
4707 MonoMethodBuilder *mb;
4712 int t, pos0, pos1 = 0;
4714 type = mono_type_get_underlying_type (type);
4719 if (type->type == MONO_TYPE_SZARRAY) {
4720 klass = mono_defaults.array_class;
4721 } else if (type->type == MONO_TYPE_VALUETYPE) {
4722 klass = type->data.klass;
4723 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4724 klass = mono_defaults.object_class;
4725 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4726 klass = mono_defaults.int_class;
4727 } else if (t == MONO_TYPE_GENERICINST) {
4728 if (mono_type_generic_inst_is_valuetype (type))
4729 klass = mono_class_from_mono_type (type);
4731 klass = mono_defaults.object_class;
4733 klass = mono_class_from_mono_type (type);
4736 klass = mono_defaults.int_class;
4739 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4740 if ((res = mono_marshal_find_in_cache (cache, klass)))
4743 /* we add the %p pointer value of klass because class names are not unique */
4744 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4745 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4748 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4749 sig->params [0] = &mono_defaults.object_class->byval_arg;
4750 sig->params [1] = &mono_defaults.int_class->byval_arg;
4751 sig->params [2] = &mono_defaults.int_class->byval_arg;
4752 sig->params [3] = &mono_defaults.int_class->byval_arg;
4753 sig->ret = &klass->byval_arg;
4755 mono_mb_emit_ldarg (mb, 0);
4756 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4758 mono_mb_emit_ldarg (mb, 0);
4759 mono_mb_emit_ldarg (mb, 1);
4760 mono_mb_emit_ldarg (mb, 2);
4762 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4765 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4766 csig->params [0] = &mono_defaults.object_class->byval_arg;
4767 csig->params [1] = &mono_defaults.int_class->byval_arg;
4768 csig->params [2] = &mono_defaults.int_class->byval_arg;
4769 csig->ret = &klass->this_arg;
4772 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4773 emit_thread_interrupt_checkpoint (mb);
4776 if (klass->valuetype) {
4777 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4778 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4780 mono_mb_emit_byte (mb, CEE_RET);
4784 mono_mb_patch_branch (mb, pos0);
4786 mono_mb_emit_ldarg (mb, 0);
4787 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4788 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4789 mono_mb_emit_ldarg (mb, 3);
4790 mono_mb_emit_byte (mb, CEE_ADD);
4792 if (klass->valuetype)
4793 mono_mb_patch_branch (mb, pos1);
4798 case MONO_TYPE_BOOLEAN:
4799 case MONO_TYPE_CHAR:
4808 case MONO_TYPE_ARRAY:
4809 case MONO_TYPE_SZARRAY:
4810 case MONO_TYPE_OBJECT:
4811 case MONO_TYPE_CLASS:
4812 case MONO_TYPE_STRING:
4816 case MONO_TYPE_FNPTR:
4817 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4819 case MONO_TYPE_VALUETYPE:
4820 g_assert (!klass->enumtype);
4821 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4823 case MONO_TYPE_GENERICINST:
4824 if (mono_type_generic_inst_is_valuetype (type)) {
4825 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4827 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4831 g_warning ("type %x not implemented", type->type);
4832 g_assert_not_reached ();
4835 mono_mb_emit_byte (mb, CEE_RET);
4837 res = mono_mb_create_and_cache (cache, klass,
4838 mb, sig, sig->param_count + 16);
4845 * mono_marshal_get_ldflda_wrapper:
4846 * @type: the type of the field
4848 * This method generates a function which can be used to load a field address
4849 * from an object. The generated function has the following signature:
4850 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4853 mono_marshal_get_ldflda_wrapper (MonoType *type)
4855 MonoMethodSignature *sig;
4856 MonoMethodBuilder *mb;
4861 int t, pos0, pos1, pos2, pos3;
4863 type = mono_type_get_underlying_type (type);
4867 if (type->type == MONO_TYPE_SZARRAY) {
4868 klass = mono_defaults.array_class;
4869 } else if (type->type == MONO_TYPE_VALUETYPE) {
4870 klass = type->data.klass;
4871 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4872 t == MONO_TYPE_CLASS) {
4873 klass = mono_defaults.object_class;
4874 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4875 klass = mono_defaults.int_class;
4876 } else if (t == MONO_TYPE_GENERICINST) {
4877 if (mono_type_generic_inst_is_valuetype (type))
4878 klass = mono_class_from_mono_type (type);
4880 klass = mono_defaults.object_class;
4882 klass = mono_class_from_mono_type (type);
4885 klass = mono_defaults.int_class;
4888 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4889 if ((res = mono_marshal_find_in_cache (cache, klass)))
4892 /* we add the %p pointer value of klass because class names are not unique */
4893 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4894 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4897 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4898 sig->params [0] = &mono_defaults.object_class->byval_arg;
4899 sig->params [1] = &mono_defaults.int_class->byval_arg;
4900 sig->params [2] = &mono_defaults.int_class->byval_arg;
4901 sig->params [3] = &mono_defaults.int_class->byval_arg;
4902 sig->ret = &mono_defaults.int_class->byval_arg;
4904 /* if typeof (this) != transparent_proxy goto pos0 */
4905 mono_mb_emit_ldarg (mb, 0);
4906 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4908 /* if same_appdomain goto pos1 */
4909 mono_mb_emit_ldarg (mb, 0);
4910 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4912 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4914 /* same app domain */
4915 mono_mb_patch_branch (mb, pos1);
4917 /* if typeof (this) != contextbound goto pos2 */
4918 mono_mb_emit_ldarg (mb, 0);
4919 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4921 /* if this->rp->context == mono_context_get goto pos3 */
4922 mono_mb_emit_ldarg (mb, 0);
4923 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4924 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4925 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4926 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4927 mono_mb_emit_icall (mb, mono_context_get);
4928 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4930 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4932 mono_mb_patch_branch (mb, pos2);
4933 mono_mb_patch_branch (mb, pos3);
4935 /* return the address of the field from this->rp->unwrapped_server */
4936 mono_mb_emit_ldarg (mb, 0);
4937 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4938 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4939 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4940 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4941 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4942 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4943 mono_mb_emit_ldarg (mb, 3);
4944 mono_mb_emit_byte (mb, CEE_ADD);
4945 mono_mb_emit_byte (mb, CEE_RET);
4947 /* not a proxy: return the address of the field directly */
4948 mono_mb_patch_branch (mb, pos0);
4950 mono_mb_emit_ldarg (mb, 0);
4951 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4952 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4953 mono_mb_emit_ldarg (mb, 3);
4954 mono_mb_emit_byte (mb, CEE_ADD);
4956 mono_mb_emit_byte (mb, CEE_RET);
4958 res = mono_mb_create_and_cache (cache, klass,
4959 mb, sig, sig->param_count + 16);
4966 * mono_marshal_get_stfld_remote_wrapper:
4967 * klass: The type of the field
4969 * This function generates a wrapper for calling mono_store_remote_field_new
4970 * with the appropriate signature.
4971 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4972 * klass argument anymore.
4975 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4977 MonoMethodSignature *sig, *csig;
4978 MonoMethodBuilder *mb;
4980 static MonoMethod *cached = NULL;
4982 mono_marshal_lock ();
4984 mono_marshal_unlock ();
4987 mono_marshal_unlock ();
4989 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4991 mb->method->save_lmf = 1;
4993 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4994 sig->params [0] = &mono_defaults.object_class->byval_arg;
4995 sig->params [1] = &mono_defaults.int_class->byval_arg;
4996 sig->params [2] = &mono_defaults.int_class->byval_arg;
4997 sig->params [3] = &mono_defaults.object_class->byval_arg;
4998 sig->ret = &mono_defaults.void_class->byval_arg;
5000 mono_mb_emit_ldarg (mb, 0);
5001 mono_mb_emit_ldarg (mb, 1);
5002 mono_mb_emit_ldarg (mb, 2);
5003 mono_mb_emit_ldarg (mb, 3);
5005 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5006 csig->params [0] = &mono_defaults.object_class->byval_arg;
5007 csig->params [1] = &mono_defaults.int_class->byval_arg;
5008 csig->params [2] = &mono_defaults.int_class->byval_arg;
5009 csig->params [3] = &mono_defaults.object_class->byval_arg;
5010 csig->ret = &mono_defaults.void_class->byval_arg;
5013 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5014 emit_thread_interrupt_checkpoint (mb);
5016 mono_mb_emit_byte (mb, CEE_RET);
5018 mono_marshal_lock ();
5020 mono_marshal_unlock ();
5023 newm = mono_mb_create_method (mb, sig, 6);
5024 mono_marshal_lock ();
5029 mono_marshal_unlock ();
5031 mono_marshal_unlock ();
5032 mono_free_method (newm);
5041 * mono_marshal_get_stfld_wrapper:
5042 * @type: the type of the field
5044 * This method generates a function which can be use to store a field with type
5045 * @type. The generated function has the following signature:
5046 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5049 mono_marshal_get_stfld_wrapper (MonoType *type)
5051 MonoMethodSignature *sig;
5052 MonoMethodBuilder *mb;
5059 type = mono_type_get_underlying_type (type);
5063 if (type->type == MONO_TYPE_SZARRAY) {
5064 klass = mono_defaults.array_class;
5065 } else if (type->type == MONO_TYPE_VALUETYPE) {
5066 klass = type->data.klass;
5067 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5068 klass = mono_defaults.object_class;
5069 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5070 klass = mono_defaults.int_class;
5071 } else if (t == MONO_TYPE_GENERICINST) {
5072 if (mono_type_generic_inst_is_valuetype (type))
5073 klass = mono_class_from_mono_type (type);
5075 klass = mono_defaults.object_class;
5077 klass = mono_class_from_mono_type (type);
5080 klass = mono_defaults.int_class;
5083 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5084 if ((res = mono_marshal_find_in_cache (cache, klass)))
5087 /* we add the %p pointer value of klass because class names are not unique */
5088 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5089 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5092 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5093 sig->params [0] = &mono_defaults.object_class->byval_arg;
5094 sig->params [1] = &mono_defaults.int_class->byval_arg;
5095 sig->params [2] = &mono_defaults.int_class->byval_arg;
5096 sig->params [3] = &mono_defaults.int_class->byval_arg;
5097 sig->params [4] = &klass->byval_arg;
5098 sig->ret = &mono_defaults.void_class->byval_arg;
5100 mono_mb_emit_ldarg (mb, 0);
5101 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5103 mono_mb_emit_ldarg (mb, 0);
5104 mono_mb_emit_ldarg (mb, 1);
5105 mono_mb_emit_ldarg (mb, 2);
5106 mono_mb_emit_ldarg (mb, 4);
5107 if (klass->valuetype)
5108 mono_mb_emit_op (mb, CEE_BOX, klass);
5110 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5112 mono_mb_emit_byte (mb, CEE_RET);
5114 mono_mb_patch_branch (mb, pos);
5116 mono_mb_emit_ldarg (mb, 0);
5117 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5118 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5119 mono_mb_emit_ldarg (mb, 3);
5120 mono_mb_emit_byte (mb, CEE_ADD);
5121 mono_mb_emit_ldarg (mb, 4);
5126 case MONO_TYPE_BOOLEAN:
5127 case MONO_TYPE_CHAR:
5136 case MONO_TYPE_ARRAY:
5137 case MONO_TYPE_SZARRAY:
5138 case MONO_TYPE_OBJECT:
5139 case MONO_TYPE_CLASS:
5140 case MONO_TYPE_STRING:
5144 case MONO_TYPE_FNPTR:
5145 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5147 case MONO_TYPE_VALUETYPE:
5148 g_assert (!klass->enumtype);
5149 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5151 case MONO_TYPE_GENERICINST:
5152 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5155 g_warning ("type %x not implemented", type->type);
5156 g_assert_not_reached ();
5159 mono_mb_emit_byte (mb, CEE_RET);
5161 res = mono_mb_create_and_cache (cache, klass,
5162 mb, sig, sig->param_count + 16);
5169 * generates IL code for the icall wrapper (the generated method
5170 * calls the unmanaged code in func)
5173 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5175 MonoMethodSignature *csig, *csig2;
5176 MonoMethodBuilder *mb;
5180 g_assert (sig->pinvoke);
5182 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5184 mb->method->save_lmf = 1;
5186 /* Add an explicit this argument */
5188 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5190 csig2 = signature_dup (mono_defaults.corlib, sig);
5193 mono_mb_emit_byte (mb, CEE_LDARG_0);
5195 for (i = 0; i < sig->param_count; i++)
5196 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5198 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5199 if (check_exceptions)
5200 emit_thread_interrupt_checkpoint (mb);
5201 mono_mb_emit_byte (mb, CEE_RET);
5203 csig = signature_dup (mono_defaults.corlib, sig);
5205 if (csig->call_convention == MONO_CALL_VARARG)
5206 csig->call_convention = 0;
5208 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5215 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5216 MonoMarshalSpec *spec,
5217 int conv_arg, MonoType **conv_arg_type,
5218 MarshalAction action)
5222 static MonoClass *ICustomMarshaler = NULL;
5223 static MonoMethod *cleanup_native, *cleanup_managed;
5224 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5225 MonoMethod *get_instance;
5226 MonoMethodBuilder *mb = m->mb;
5227 char *exception_msg = NULL;
5231 if (!ICustomMarshaler) {
5232 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5233 g_assert (ICustomMarshaler);
5235 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5236 g_assert (cleanup_native);
5237 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5238 g_assert (cleanup_managed);
5239 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5240 g_assert (marshal_managed_to_native);
5241 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5242 g_assert (marshal_native_to_managed);
5245 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5246 g_assert (mtype != NULL);
5247 mklass = mono_class_from_mono_type (mtype);
5248 g_assert (mklass != NULL);
5250 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5251 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5253 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5255 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5256 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5257 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5258 (get_sig->params [0]->type != MONO_TYPE_STRING))
5259 get_instance = NULL;
5263 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);
5265 /* Throw exception and emit compensation code if neccesary */
5266 if (exception_msg) {
5268 case MARSHAL_ACTION_CONV_IN:
5269 case MARSHAL_ACTION_CONV_RESULT:
5270 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5271 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5272 mono_mb_emit_byte (mb, CEE_POP);
5274 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5275 g_free (exception_msg);
5278 case MARSHAL_ACTION_PUSH:
5279 mono_mb_emit_byte (mb, CEE_LDNULL);
5287 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5288 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5291 case MARSHAL_ACTION_CONV_IN:
5293 case MONO_TYPE_CLASS:
5294 case MONO_TYPE_OBJECT:
5295 case MONO_TYPE_STRING:
5296 case MONO_TYPE_ARRAY:
5297 case MONO_TYPE_SZARRAY:
5298 case MONO_TYPE_VALUETYPE:
5302 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5303 g_assert_not_reached ();
5307 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5309 mono_mb_emit_byte (mb, CEE_LDNULL);
5310 mono_mb_emit_stloc (mb, conv_arg);
5312 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5315 /* Minic MS.NET behavior */
5316 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5319 /* Check for null */
5320 mono_mb_emit_ldarg (mb, argnum);
5322 mono_mb_emit_byte (mb, CEE_LDIND_I);
5323 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5325 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5327 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5329 mono_mb_emit_ldarg (mb, argnum);
5331 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5333 if (t->type == MONO_TYPE_VALUETYPE) {
5335 * Since we can't determine the type of the argument, we
5336 * will assume the unmanaged function takes a pointer.
5338 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5340 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5343 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5344 mono_mb_emit_stloc (mb, conv_arg);
5346 mono_mb_patch_branch (mb, pos2);
5349 case MARSHAL_ACTION_CONV_OUT:
5350 /* Check for null */
5351 mono_mb_emit_ldloc (mb, conv_arg);
5352 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5355 mono_mb_emit_ldarg (mb, argnum);
5357 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5359 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5361 mono_mb_emit_ldloc (mb, conv_arg);
5362 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5363 mono_mb_emit_byte (mb, CEE_STIND_REF);
5364 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5365 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5367 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5369 mono_mb_emit_ldloc (mb, conv_arg);
5370 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5372 /* We have nowhere to store the result */
5373 mono_mb_emit_byte (mb, CEE_POP);
5376 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5378 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5380 mono_mb_emit_ldloc (mb, conv_arg);
5382 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5384 mono_mb_patch_branch (mb, pos2);
5387 case MARSHAL_ACTION_PUSH:
5389 mono_mb_emit_ldloc_addr (mb, conv_arg);
5391 mono_mb_emit_ldloc (mb, conv_arg);
5394 case MARSHAL_ACTION_CONV_RESULT:
5395 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5397 mono_mb_emit_stloc (mb, 3);
5399 mono_mb_emit_ldloc (mb, 3);
5400 mono_mb_emit_stloc (mb, loc1);
5402 /* Check for null */
5403 mono_mb_emit_ldloc (mb, 3);
5404 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5406 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5408 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5409 mono_mb_emit_byte (mb, CEE_DUP);
5411 mono_mb_emit_ldloc (mb, 3);
5412 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5413 mono_mb_emit_stloc (mb, 3);
5415 mono_mb_emit_ldloc (mb, loc1);
5416 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5418 mono_mb_patch_branch (mb, pos2);
5421 case MARSHAL_ACTION_MANAGED_CONV_IN:
5422 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5424 mono_mb_emit_byte (mb, CEE_LDNULL);
5425 mono_mb_emit_stloc (mb, conv_arg);
5427 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5430 /* Check for null */
5431 mono_mb_emit_ldarg (mb, argnum);
5433 mono_mb_emit_byte (mb, CEE_LDIND_I);
5434 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5436 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5437 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5439 mono_mb_emit_ldarg (mb, argnum);
5441 mono_mb_emit_byte (mb, CEE_LDIND_I);
5443 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5444 mono_mb_emit_stloc (mb, conv_arg);
5446 mono_mb_patch_branch (mb, pos2);
5449 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5450 g_assert (!t->byref);
5452 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5454 mono_mb_emit_stloc (mb, 3);
5456 mono_mb_emit_ldloc (mb, 3);
5457 mono_mb_emit_stloc (mb, loc1);
5459 /* Check for null */
5460 mono_mb_emit_ldloc (mb, 3);
5461 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5463 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5464 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5465 mono_mb_emit_byte (mb, CEE_DUP);
5467 mono_mb_emit_ldloc (mb, 3);
5468 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5469 mono_mb_emit_stloc (mb, 3);
5471 mono_mb_emit_ldloc (mb, loc1);
5472 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5474 mono_mb_patch_branch (mb, pos2);
5477 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5479 /* Check for null */
5480 mono_mb_emit_ldloc (mb, conv_arg);
5481 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5484 mono_mb_emit_ldarg (mb, argnum);
5486 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5488 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5490 mono_mb_emit_ldloc (mb, conv_arg);
5491 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5492 mono_mb_emit_byte (mb, CEE_STIND_I);
5495 /* Call CleanUpManagedData */
5496 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5498 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5500 mono_mb_emit_ldloc (mb, conv_arg);
5501 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5503 mono_mb_patch_branch (mb, pos2);
5507 g_assert_not_reached ();
5514 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5515 MonoMarshalSpec *spec,
5516 int conv_arg, MonoType **conv_arg_type,
5517 MarshalAction action)
5519 MonoMethodBuilder *mb = m->mb;
5522 case MARSHAL_ACTION_CONV_IN: {
5523 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5525 g_assert (t->type == MONO_TYPE_OBJECT);
5526 g_assert (!t->byref);
5528 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5529 mono_mb_emit_ldarg (mb, argnum);
5530 mono_mb_emit_icon (mb, encoding);
5531 mono_mb_emit_icon (mb, t->attrs);
5532 mono_mb_emit_icall (mb, mono_marshal_asany);
5533 mono_mb_emit_stloc (mb, conv_arg);
5537 case MARSHAL_ACTION_PUSH:
5538 mono_mb_emit_ldloc (mb, conv_arg);
5541 case MARSHAL_ACTION_CONV_OUT: {
5542 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5544 mono_mb_emit_ldarg (mb, argnum);
5545 mono_mb_emit_ldloc (mb, conv_arg);
5546 mono_mb_emit_icon (mb, encoding);
5547 mono_mb_emit_icon (mb, t->attrs);
5548 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5553 g_assert_not_reached ();
5560 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5561 MonoMarshalSpec *spec,
5562 int conv_arg, MonoType **conv_arg_type,
5563 MarshalAction action)
5565 MonoMethodBuilder *mb = m->mb;
5566 MonoClass *klass, *date_time_class;
5569 klass = mono_class_from_mono_type (t);
5571 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5574 case MARSHAL_ACTION_CONV_IN:
5575 if (klass == date_time_class) {
5576 /* Convert it to an OLE DATE type */
5577 static MonoMethod *to_oadate;
5580 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5581 g_assert (to_oadate);
5583 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5586 mono_mb_emit_ldarg (mb, argnum);
5587 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5590 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5592 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5594 mono_mb_emit_ldarg_addr (mb, argnum);
5595 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5596 mono_mb_emit_stloc (mb, conv_arg);
5600 mono_mb_patch_branch (mb, pos);
5604 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5605 klass->blittable || klass->enumtype)
5608 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5610 /* store the address of the source into local variable 0 */
5612 mono_mb_emit_ldarg (mb, argnum);
5614 mono_mb_emit_ldarg_addr (mb, argnum);
5616 mono_mb_emit_stloc (mb, 0);
5618 /* allocate space for the native struct and
5619 * store the address into local variable 1 (dest) */
5620 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5621 mono_mb_emit_byte (mb, CEE_PREFIX1);
5622 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5623 mono_mb_emit_stloc (mb, conv_arg);
5626 mono_mb_emit_ldloc (mb, 0);
5627 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5630 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5632 mono_mb_emit_ldloc (mb, conv_arg);
5633 mono_mb_emit_stloc (mb, 1);
5635 /* emit valuetype conversion code */
5636 emit_struct_conv (mb, klass, FALSE);
5640 mono_mb_patch_branch (mb, pos);
5643 case MARSHAL_ACTION_PUSH:
5644 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5646 g_assert (!t->byref);
5648 /* Have to change the signature since the vtype is passed byref */
5649 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5651 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5652 klass->blittable || klass->enumtype)
5653 mono_mb_emit_ldarg_addr (mb, argnum);
5655 mono_mb_emit_ldloc (mb, conv_arg);
5659 if (klass == date_time_class) {
5661 mono_mb_emit_ldloc_addr (mb, conv_arg);
5663 mono_mb_emit_ldloc (mb, conv_arg);
5667 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5668 klass->blittable || klass->enumtype) {
5669 mono_mb_emit_ldarg (mb, argnum);
5672 mono_mb_emit_ldloc (mb, conv_arg);
5674 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5675 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5679 case MARSHAL_ACTION_CONV_OUT:
5680 if (klass == date_time_class) {
5681 /* Convert from an OLE DATE type */
5682 static MonoMethod *from_oadate;
5687 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5689 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5690 g_assert (from_oadate);
5692 mono_mb_emit_ldarg (mb, argnum);
5693 mono_mb_emit_ldloc (mb, conv_arg);
5694 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5695 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5700 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5701 klass->blittable || klass->enumtype)
5705 /* dst = argument */
5706 mono_mb_emit_ldarg (mb, argnum);
5707 mono_mb_emit_stloc (mb, 1);
5709 mono_mb_emit_ldloc (mb, 1);
5710 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5712 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5713 /* src = tmp_locals [i] */
5714 mono_mb_emit_ldloc (mb, conv_arg);
5715 mono_mb_emit_stloc (mb, 0);
5717 /* emit valuetype conversion code */
5718 emit_struct_conv (mb, klass, TRUE);
5722 emit_struct_free (mb, klass, conv_arg);
5725 mono_mb_patch_branch (mb, pos);
5728 case MARSHAL_ACTION_CONV_RESULT:
5729 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5731 mono_mb_emit_stloc (mb, 3);
5735 /* load pointer to returned value type */
5736 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5737 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5738 /* store the address of the source into local variable 0 */
5739 mono_mb_emit_stloc (mb, 0);
5741 mono_mb_emit_ldloc_addr (mb, 3);
5742 mono_mb_emit_stloc (mb, 1);
5744 /* emit valuetype conversion code */
5745 emit_struct_conv (mb, klass, TRUE);
5748 case MARSHAL_ACTION_MANAGED_CONV_IN:
5749 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5750 klass->blittable || klass->enumtype) {
5755 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5757 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5761 mono_mb_emit_ldarg (mb, argnum);
5763 mono_mb_emit_ldarg_addr (mb, argnum);
5764 mono_mb_emit_stloc (mb, 0);
5767 mono_mb_emit_ldloc (mb, 0);
5768 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5771 mono_mb_emit_ldloc_addr (mb, conv_arg);
5772 mono_mb_emit_stloc (mb, 1);
5774 /* emit valuetype conversion code */
5775 emit_struct_conv (mb, klass, TRUE);
5778 mono_mb_patch_branch (mb, pos);
5781 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5782 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5783 klass->blittable || klass->enumtype) {
5787 /* Check for null */
5788 mono_mb_emit_ldarg (mb, argnum);
5789 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5792 mono_mb_emit_ldloc_addr (mb, conv_arg);
5793 mono_mb_emit_stloc (mb, 0);
5796 mono_mb_emit_ldarg (mb, argnum);
5797 mono_mb_emit_stloc (mb, 1);
5799 /* emit valuetype conversion code */
5800 emit_struct_conv (mb, klass, FALSE);
5802 mono_mb_patch_branch (mb, pos2);
5805 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5806 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5807 klass->blittable || klass->enumtype) {
5808 mono_mb_emit_stloc (mb, 3);
5813 /* load pointer to returned value type */
5814 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5815 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5817 /* store the address of the source into local variable 0 */
5818 mono_mb_emit_stloc (mb, 0);
5819 /* allocate space for the native struct and
5820 * store the address into dst_ptr */
5821 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5822 m->retobj_class = klass;
5823 g_assert (m->retobj_var);
5824 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5825 mono_mb_emit_byte (mb, CEE_CONV_I);
5826 mono_mb_emit_icall (mb, mono_marshal_alloc);
5827 mono_mb_emit_stloc (mb, 1);
5828 mono_mb_emit_ldloc (mb, 1);
5829 mono_mb_emit_stloc (mb, m->retobj_var);
5831 /* emit valuetype conversion code */
5832 emit_struct_conv (mb, klass, FALSE);
5836 g_assert_not_reached ();
5843 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5844 MonoMarshalSpec *spec,
5845 int conv_arg, MonoType **conv_arg_type,
5846 MarshalAction action)
5848 MonoMethodBuilder *mb = m->mb;
5849 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5850 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5854 case MARSHAL_ACTION_CONV_IN:
5855 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5856 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5859 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5862 mono_mb_emit_ldarg (mb, argnum);
5863 mono_mb_emit_byte (mb, CEE_LDIND_I);
5865 mono_mb_emit_ldarg (mb, argnum);
5869 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5870 MonoException *exc = mono_get_exception_not_implemented (msg);
5871 g_warning ("%s", msg);
5873 mono_raise_exception (exc);
5876 mono_mb_emit_icall (mb, conv_to_icall (conv));
5878 mono_mb_emit_stloc (mb, conv_arg);
5881 case MARSHAL_ACTION_CONV_OUT:
5882 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5884 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5885 mono_mb_emit_exception_marshal_directive (mb, msg);
5889 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5890 mono_mb_emit_ldarg (mb, argnum);
5891 mono_mb_emit_ldloc (mb, conv_arg);
5892 mono_mb_emit_icall (mb, conv_to_icall (conv));
5893 mono_mb_emit_byte (mb, CEE_STIND_REF);
5896 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5897 mono_mb_emit_ldloc (mb, conv_arg);
5898 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5899 mono_mb_emit_icall (mb, mono_free_bstr);
5901 mono_mb_emit_icall (mb, mono_marshal_free);
5905 case MARSHAL_ACTION_PUSH:
5907 mono_mb_emit_ldloc_addr (mb, conv_arg);
5909 mono_mb_emit_ldloc (mb, conv_arg);
5912 case MARSHAL_ACTION_CONV_RESULT:
5913 mono_mb_emit_stloc (mb, 0);
5915 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5917 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5918 mono_mb_emit_exception_marshal_directive (mb, msg);
5922 mono_mb_emit_ldloc (mb, 0);
5923 mono_mb_emit_icall (mb, conv_to_icall (conv));
5924 mono_mb_emit_stloc (mb, 3);
5926 /* free the string */
5927 mono_mb_emit_ldloc (mb, 0);
5928 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5929 mono_mb_emit_icall (mb, mono_free_bstr);
5931 mono_mb_emit_icall (mb, mono_marshal_free);
5934 case MARSHAL_ACTION_MANAGED_CONV_IN:
5935 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5937 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5939 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5941 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5942 mono_mb_emit_exception_marshal_directive (mb, msg);
5946 mono_mb_emit_ldarg (mb, argnum);
5948 mono_mb_emit_byte (mb, CEE_LDIND_I);
5949 mono_mb_emit_icall (mb, conv_to_icall (conv));
5950 mono_mb_emit_stloc (mb, conv_arg);
5953 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5956 mono_mb_emit_ldarg (mb, argnum);
5957 mono_mb_emit_ldloc (mb, conv_arg);
5958 mono_mb_emit_icall (mb, conv_to_icall (conv));
5959 mono_mb_emit_byte (mb, CEE_STIND_I);
5964 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5965 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5966 /* We need to make a copy so the caller is able to free it */
5967 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5969 mono_mb_emit_icall (mb, conv_to_icall (conv));
5970 mono_mb_emit_stloc (mb, 3);
5974 g_assert_not_reached ();
5981 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5982 MonoMarshalSpec *spec, int conv_arg,
5983 MonoType **conv_arg_type, MarshalAction action)
5985 MonoMethodBuilder *mb = m->mb;
5988 case MARSHAL_ACTION_CONV_IN: {
5989 MonoType *intptr_type;
5990 int dar_release_slot, pos;
5992 intptr_type = &mono_defaults.int_class->byval_arg;
5993 conv_arg = mono_mb_add_local (mb, intptr_type);
5994 *conv_arg_type = intptr_type;
5996 if (!sh_dangerous_add_ref)
5997 init_safe_handle ();
5999 mono_mb_emit_ldarg (mb, argnum);
6000 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6001 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6003 mono_mb_patch_branch (mb, pos);
6006 * My tests in show that ref SafeHandles are not really
6007 * passed as ref objects. Instead a NULL is passed as the
6010 mono_mb_emit_icon (mb, 0);
6011 mono_mb_emit_stloc (mb, conv_arg);
6015 /* Create local to hold the ref parameter to DangerousAddRef */
6016 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6018 /* set release = false; */
6019 mono_mb_emit_icon (mb, 0);
6020 mono_mb_emit_stloc (mb, dar_release_slot);
6022 /* safehandle.DangerousAddRef (ref release) */
6023 mono_mb_emit_ldarg (mb, argnum);
6024 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6025 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6027 /* Pull the handle field from SafeHandle */
6028 mono_mb_emit_ldarg (mb, argnum);
6029 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6030 mono_mb_emit_byte (mb, CEE_LDIND_I);
6031 mono_mb_emit_stloc (mb, conv_arg);
6036 case MARSHAL_ACTION_PUSH:
6038 mono_mb_emit_ldloc_addr (mb, conv_arg);
6040 mono_mb_emit_ldloc (mb, conv_arg);
6043 case MARSHAL_ACTION_CONV_OUT: {
6044 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6045 int dar_release_slot = conv_arg + 1;
6048 if (!sh_dangerous_release)
6049 init_safe_handle ();
6055 * My tests indicate that ref SafeHandles parameters are not actually
6056 * passed by ref, but instead a new Handle is created regardless of
6057 * whether a change happens in the unmanaged side.
6059 * Also, the Handle is created before calling into unmanaged code,
6060 * but we do not support that mechanism (getting to the original
6061 * handle) and it makes no difference where we create this
6063 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6065 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6068 /* refval = new SafeHandleDerived ()*/
6069 mono_mb_emit_ldarg (mb, argnum);
6070 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6071 mono_mb_emit_byte (mb, CEE_STIND_REF);
6073 /* refval.handle = returned_handle */
6074 mono_mb_emit_ldarg (mb, argnum);
6075 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6076 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6077 mono_mb_emit_ldloc (mb, conv_arg);
6078 mono_mb_emit_byte (mb, CEE_STIND_I);
6080 mono_mb_emit_ldloc (mb, dar_release_slot);
6081 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6082 mono_mb_emit_ldarg (mb, argnum);
6083 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6084 mono_mb_patch_branch (mb, label_next);
6089 case MARSHAL_ACTION_CONV_RESULT: {
6090 MonoMethod *ctor = NULL;
6091 int intptr_handle_slot;
6093 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6094 mono_mb_emit_byte (mb, CEE_POP);
6095 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6099 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6101 mono_mb_emit_byte (mb, CEE_POP);
6102 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6105 /* Store the IntPtr results into a local */
6106 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6107 mono_mb_emit_stloc (mb, intptr_handle_slot);
6109 /* Create return value */
6110 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6111 mono_mb_emit_stloc (mb, 3);
6113 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6114 mono_mb_emit_ldloc (mb, 3);
6115 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6116 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6117 mono_mb_emit_byte (mb, CEE_STIND_I);
6121 case MARSHAL_ACTION_MANAGED_CONV_IN:
6122 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6125 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6126 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6129 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6130 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6133 printf ("Unhandled case for MarshalAction: %d\n", action);
6140 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6141 MonoMarshalSpec *spec, int conv_arg,
6142 MonoType **conv_arg_type, MarshalAction action)
6144 MonoMethodBuilder *mb = m->mb;
6147 case MARSHAL_ACTION_CONV_IN: {
6148 MonoType *intptr_type;
6150 intptr_type = &mono_defaults.int_class->byval_arg;
6151 conv_arg = mono_mb_add_local (mb, intptr_type);
6152 *conv_arg_type = intptr_type;
6155 mono_mb_emit_exception_marshal_directive (mb,
6156 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6159 mono_mb_emit_ldarg_addr (mb, argnum);
6160 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6161 mono_mb_emit_byte (mb, CEE_ADD);
6162 mono_mb_emit_byte (mb, CEE_LDIND_I);
6163 mono_mb_emit_stloc (mb, conv_arg);
6167 case MARSHAL_ACTION_PUSH:
6168 mono_mb_emit_ldloc (mb, conv_arg);
6171 case MARSHAL_ACTION_CONV_OUT: {
6172 /* no resource release required */
6176 case MARSHAL_ACTION_CONV_RESULT: {
6177 mono_mb_emit_exception_marshal_directive (mb,
6178 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6182 case MARSHAL_ACTION_MANAGED_CONV_IN:
6183 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6186 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6187 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6190 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6191 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6194 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6201 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6202 MonoMarshalSpec *spec,
6203 int conv_arg, MonoType **conv_arg_type,
6204 MarshalAction action)
6206 MonoMethodBuilder *mb = m->mb;
6207 MonoClass *klass = mono_class_from_mono_type (t);
6211 case MARSHAL_ACTION_CONV_IN:
6212 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6213 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6215 m->orig_conv_args [argnum] = 0;
6217 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6218 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6219 mono_mb_emit_exception_marshal_directive (mb, msg);
6223 if (klass->delegate) {
6225 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6226 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6227 mono_mb_emit_exception_marshal_directive (mb, msg);
6229 mono_mb_emit_byte (mb, CEE_LDNULL);
6230 mono_mb_emit_stloc (mb, conv_arg);
6232 mono_mb_emit_ldarg (mb, argnum);
6233 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6234 mono_mb_emit_stloc (mb, conv_arg);
6236 } else if (klass == mono_defaults.stringbuilder_class) {
6237 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6238 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6241 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6242 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6243 mono_mb_emit_exception_marshal_directive (mb, msg);
6248 mono_mb_emit_ldarg (mb, argnum);
6251 mono_mb_emit_icall (mb, conv_to_icall (conv));
6253 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6254 MonoException *exc = mono_get_exception_not_implemented (msg);
6255 g_warning ("%s", msg);
6257 mono_raise_exception (exc);
6260 mono_mb_emit_stloc (mb, conv_arg);
6261 } else if (klass->blittable) {
6262 mono_mb_emit_byte (mb, CEE_LDNULL);
6263 mono_mb_emit_stloc (mb, conv_arg);
6265 mono_mb_emit_ldarg (mb, argnum);
6266 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6268 mono_mb_emit_ldarg (mb, argnum);
6269 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6270 mono_mb_emit_stloc (mb, conv_arg);
6272 mono_mb_patch_branch (mb, pos);
6275 mono_mb_emit_byte (mb, CEE_LDNULL);
6276 mono_mb_emit_stloc (mb, conv_arg);
6279 /* we dont need any conversions for out parameters */
6280 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6283 mono_mb_emit_ldarg (mb, argnum);
6284 mono_mb_emit_byte (mb, CEE_LDIND_I);
6287 mono_mb_emit_ldarg (mb, argnum);
6288 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6289 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6292 /* store the address of the source into local variable 0 */
6293 mono_mb_emit_stloc (mb, 0);
6294 mono_mb_emit_ldloc (mb, 0);
6295 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6297 /* allocate space for the native struct and store the address */
6298 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6299 mono_mb_emit_byte (mb, CEE_PREFIX1);
6300 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6301 mono_mb_emit_stloc (mb, conv_arg);
6304 /* Need to store the original buffer so we can free it later */
6305 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6306 mono_mb_emit_ldloc (mb, conv_arg);
6307 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6310 /* set the src_ptr */
6311 mono_mb_emit_ldloc (mb, 0);
6312 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6313 mono_mb_emit_stloc (mb, 0);
6316 mono_mb_emit_ldloc (mb, conv_arg);
6317 mono_mb_emit_stloc (mb, 1);
6319 /* emit valuetype conversion code */
6320 emit_struct_conv (mb, klass, FALSE);
6322 mono_mb_patch_branch (mb, pos);
6326 case MARSHAL_ACTION_CONV_OUT:
6327 if (klass == mono_defaults.stringbuilder_class) {
6329 MonoMarshalNative encoding;
6330 MonoMarshalConv conv;
6332 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6333 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6335 g_assert (encoding != -1);
6338 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6342 mono_mb_emit_ldarg (mb, argnum);
6343 mono_mb_emit_ldloc (mb, conv_arg);
6346 case MONO_NATIVE_LPWSTR:
6347 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6349 case MONO_NATIVE_LPSTR:
6350 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6353 g_assert_not_reached ();
6356 mono_mb_emit_byte (mb, CEE_STIND_REF);
6358 mono_mb_emit_ldarg (mb, argnum);
6359 mono_mb_emit_ldloc (mb, conv_arg);
6361 mono_mb_emit_icall (mb, conv_to_icall (conv));
6365 mono_mb_emit_ldloc (mb, conv_arg);
6366 mono_mb_emit_icall (mb, mono_marshal_free);
6371 if (klass->delegate) {
6373 mono_mb_emit_ldarg (mb, argnum);
6374 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6375 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6376 mono_mb_emit_ldloc (mb, conv_arg);
6377 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6378 mono_mb_emit_byte (mb, CEE_STIND_REF);
6383 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6384 /* allocate a new object */
6385 mono_mb_emit_ldarg (mb, argnum);
6386 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6387 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6388 mono_mb_emit_byte (mb, CEE_STIND_REF);
6391 /* dst = *argument */
6392 mono_mb_emit_ldarg (mb, argnum);
6395 mono_mb_emit_byte (mb, CEE_LDIND_I);
6397 mono_mb_emit_stloc (mb, 1);
6399 mono_mb_emit_ldloc (mb, 1);
6400 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6402 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6403 mono_mb_emit_ldloc (mb, 1);
6404 mono_mb_emit_icon (mb, sizeof (MonoObject));
6405 mono_mb_emit_byte (mb, CEE_ADD);
6406 mono_mb_emit_stloc (mb, 1);
6408 /* src = tmp_locals [i] */
6409 mono_mb_emit_ldloc (mb, conv_arg);
6410 mono_mb_emit_stloc (mb, 0);
6412 /* emit valuetype conversion code */
6413 emit_struct_conv (mb, klass, TRUE);
6415 /* Free the structure returned by the native code */
6416 emit_struct_free (mb, klass, conv_arg);
6418 if (m->orig_conv_args [argnum]) {
6420 * If the native function changed the pointer, then free
6421 * the original structure plus the new pointer.
6423 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6424 mono_mb_emit_ldloc (mb, conv_arg);
6425 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6427 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6428 g_assert (m->orig_conv_args [argnum]);
6430 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6433 mono_mb_emit_ldloc (mb, conv_arg);
6434 mono_mb_emit_icall (mb, g_free);
6436 mono_mb_patch_branch (mb, pos2);
6440 /* Free the original structure passed to native code */
6441 emit_struct_free (mb, klass, conv_arg);
6443 mono_mb_patch_branch (mb, pos);
6446 case MARSHAL_ACTION_PUSH:
6448 mono_mb_emit_ldloc_addr (mb, conv_arg);
6450 mono_mb_emit_ldloc (mb, conv_arg);
6453 case MARSHAL_ACTION_CONV_RESULT:
6454 if (klass->delegate) {
6455 g_assert (!t->byref);
6456 mono_mb_emit_stloc (mb, 0);
6457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6458 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6459 mono_mb_emit_ldloc (mb, 0);
6460 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6461 mono_mb_emit_stloc (mb, 3);
6464 mono_mb_emit_stloc (mb, 0);
6466 /* Make a copy since emit_conv modifies local 0 */
6467 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6468 mono_mb_emit_ldloc (mb, 0);
6469 mono_mb_emit_stloc (mb, loc);
6471 mono_mb_emit_byte (mb, CEE_LDNULL);
6472 mono_mb_emit_stloc (mb, 3);
6474 mono_mb_emit_ldloc (mb, 0);
6475 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6477 /* allocate result object */
6479 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6480 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6481 mono_mb_emit_stloc (mb, 3);
6485 mono_mb_emit_ldloc (mb, 3);
6486 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6487 mono_mb_emit_stloc (mb, 1);
6489 /* emit conversion code */
6490 emit_struct_conv (mb, klass, TRUE);
6492 emit_struct_free (mb, klass, loc);
6494 /* Free the pointer allocated by unmanaged code */
6495 mono_mb_emit_ldloc (mb, loc);
6496 mono_mb_emit_icall (mb, g_free);
6497 mono_mb_patch_branch (mb, pos);
6501 case MARSHAL_ACTION_MANAGED_CONV_IN:
6502 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6504 if (klass->delegate) {
6505 g_assert (!t->byref);
6506 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6507 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6508 mono_mb_emit_ldarg (mb, argnum);
6509 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6510 mono_mb_emit_stloc (mb, conv_arg);
6514 if (klass == mono_defaults.stringbuilder_class) {
6515 MonoMarshalNative encoding;
6517 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6520 g_assert (encoding == MONO_NATIVE_LPSTR);
6522 g_assert (!t->byref);
6523 g_assert (encoding != -1);
6525 mono_mb_emit_ldarg (mb, argnum);
6526 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6527 mono_mb_emit_stloc (mb, conv_arg);
6531 /* The class can not have an automatic layout */
6532 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6533 mono_mb_emit_auto_layout_exception (mb, klass);
6537 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6538 mono_mb_emit_byte (mb, CEE_LDNULL);
6539 mono_mb_emit_stloc (mb, conv_arg);
6544 mono_mb_emit_ldarg (mb, argnum);
6548 /* Check for NULL and raise an exception */
6549 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6551 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6553 mono_mb_patch_branch (mb, pos2);
6554 mono_mb_emit_ldarg (mb, argnum);
6555 mono_mb_emit_byte (mb, CEE_LDIND_I);
6558 mono_mb_emit_stloc (mb, 0);
6560 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6561 mono_mb_emit_stloc (mb, conv_arg);
6563 mono_mb_emit_ldloc (mb, 0);
6564 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6566 /* Create and set dst */
6567 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6568 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6569 mono_mb_emit_stloc (mb, conv_arg);
6570 mono_mb_emit_ldloc (mb, conv_arg);
6571 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6572 mono_mb_emit_stloc (mb, 1);
6574 /* emit valuetype conversion code */
6575 emit_struct_conv (mb, klass, TRUE);
6577 mono_mb_patch_branch (mb, pos);
6580 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6582 /* Check for null */
6583 mono_mb_emit_ldloc (mb, conv_arg);
6584 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6585 mono_mb_emit_ldarg (mb, argnum);
6586 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6587 mono_mb_emit_byte (mb, CEE_STIND_REF);
6588 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6590 mono_mb_patch_branch (mb, pos);
6593 mono_mb_emit_ldloc (mb, conv_arg);
6594 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6595 mono_mb_emit_stloc (mb, 0);
6597 /* Allocate and set dest */
6598 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6599 mono_mb_emit_byte (mb, CEE_CONV_I);
6600 mono_mb_emit_icall (mb, mono_marshal_alloc);
6601 mono_mb_emit_stloc (mb, 1);
6603 /* Update argument pointer */
6604 mono_mb_emit_ldarg (mb, argnum);
6605 mono_mb_emit_ldloc (mb, 1);
6606 mono_mb_emit_byte (mb, CEE_STIND_I);
6608 /* emit valuetype conversion code */
6609 emit_struct_conv (mb, klass, FALSE);
6611 mono_mb_patch_branch (mb, pos2);
6613 /* byval [Out] marshalling */
6615 /* FIXME: Handle null */
6618 mono_mb_emit_ldloc (mb, conv_arg);
6619 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6620 mono_mb_emit_stloc (mb, 0);
6623 mono_mb_emit_ldarg (mb, argnum);
6624 mono_mb_emit_stloc (mb, 1);
6626 /* emit valuetype conversion code */
6627 emit_struct_conv (mb, klass, FALSE);
6631 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6632 if (klass->delegate) {
6633 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6634 mono_mb_emit_stloc (mb, 3);
6638 /* The class can not have an automatic layout */
6639 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6640 mono_mb_emit_auto_layout_exception (mb, klass);
6644 mono_mb_emit_stloc (mb, 0);
6645 /* Check for null */
6646 mono_mb_emit_ldloc (mb, 0);
6647 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6648 mono_mb_emit_byte (mb, CEE_LDNULL);
6649 mono_mb_emit_stloc (mb, 3);
6650 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6652 mono_mb_patch_branch (mb, pos);
6655 mono_mb_emit_ldloc (mb, 0);
6656 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6657 mono_mb_emit_stloc (mb, 0);
6659 /* Allocate and set dest */
6660 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6661 mono_mb_emit_byte (mb, CEE_CONV_I);
6662 mono_mb_emit_icall (mb, mono_marshal_alloc);
6663 mono_mb_emit_byte (mb, CEE_DUP);
6664 mono_mb_emit_stloc (mb, 1);
6665 mono_mb_emit_stloc (mb, 3);
6667 emit_struct_conv (mb, klass, FALSE);
6669 mono_mb_patch_branch (mb, pos2);
6673 g_assert_not_reached ();
6680 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6681 MonoMarshalSpec *spec,
6682 int conv_arg, MonoType **conv_arg_type,
6683 MarshalAction action)
6685 MonoMethodBuilder *mb = m->mb;
6686 static MonoMethod *get_object_for_native_variant = NULL;
6687 static MonoMethod *get_native_variant_for_object = NULL;
6689 mono_init_com_types ();
6691 if (!get_object_for_native_variant)
6692 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6693 g_assert (get_object_for_native_variant);
6695 if (!get_native_variant_for_object)
6696 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6697 g_assert (get_native_variant_for_object);
6700 case MARSHAL_ACTION_CONV_IN: {
6701 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6704 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6706 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6708 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6711 mono_mb_emit_ldarg (mb, argnum);
6713 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6714 mono_mb_emit_ldloc_addr (mb, conv_arg);
6715 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6719 case MARSHAL_ACTION_CONV_OUT: {
6720 static MonoMethod *variant_clear = NULL;
6723 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6724 g_assert (variant_clear);
6727 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6728 mono_mb_emit_ldarg (mb, argnum);
6729 mono_mb_emit_ldloc_addr (mb, conv_arg);
6730 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6731 mono_mb_emit_byte (mb, CEE_STIND_REF);
6734 mono_mb_emit_ldloc_addr (mb, conv_arg);
6735 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6739 case MARSHAL_ACTION_PUSH:
6741 mono_mb_emit_ldloc_addr (mb, conv_arg);
6743 mono_mb_emit_ldloc (mb, conv_arg);
6746 case MARSHAL_ACTION_CONV_RESULT: {
6747 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6748 mono_mb_emit_exception_marshal_directive (mb, msg);
6752 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6753 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6756 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6758 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6760 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6764 mono_mb_emit_ldarg (mb, argnum);
6766 mono_mb_emit_ldarg_addr (mb, argnum);
6767 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6768 mono_mb_emit_stloc (mb, conv_arg);
6772 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6773 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6774 mono_mb_emit_ldloc (mb, conv_arg);
6775 mono_mb_emit_ldarg (mb, argnum);
6776 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6781 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6782 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6783 mono_mb_emit_exception_marshal_directive (mb, msg);
6788 g_assert_not_reached ();
6795 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6796 MonoMarshalSpec *spec,
6797 int conv_arg, MonoType **conv_arg_type,
6798 MarshalAction action)
6800 MonoMethodBuilder *mb = m->mb;
6801 MonoClass *klass = mono_class_from_mono_type (t);
6802 gboolean need_convert, need_free;
6803 MonoMarshalNative encoding;
6805 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6808 case MARSHAL_ACTION_CONV_IN:
6809 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6810 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6812 if (klass->element_class->blittable) {
6813 mono_mb_emit_ldarg (mb, argnum);
6815 mono_mb_emit_byte (mb, CEE_LDIND_I);
6816 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6817 mono_mb_emit_stloc (mb, conv_arg);
6820 guint32 label1, label2, label3;
6821 int index_var, src_var, dest_ptr, esize;
6822 MonoMarshalConv conv;
6823 gboolean is_string = FALSE;
6825 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6827 eklass = klass->element_class;
6829 if (eklass == mono_defaults.string_class) {
6831 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6833 else if (eklass == mono_defaults.stringbuilder_class) {
6835 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6840 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6841 mono_mb_emit_ldarg (mb, argnum);
6843 mono_mb_emit_byte (mb, CEE_LDIND_I);
6844 mono_mb_emit_stloc (mb, src_var);
6847 mono_mb_emit_ldloc (mb, src_var);
6848 mono_mb_emit_stloc (mb, conv_arg);
6849 mono_mb_emit_ldloc (mb, src_var);
6850 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6854 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6855 MonoException *exc = mono_get_exception_not_implemented (msg);
6856 g_warning ("%s", msg);
6858 mono_raise_exception (exc);
6863 esize = sizeof (gpointer);
6865 esize = mono_class_native_size (eklass, NULL);
6867 /* allocate space for the native struct and store the address */
6868 mono_mb_emit_icon (mb, esize);
6869 mono_mb_emit_ldloc (mb, src_var);
6870 mono_mb_emit_byte (mb, CEE_LDLEN);
6872 if (eklass == mono_defaults.string_class) {
6873 /* Make the array bigger for the terminating null */
6874 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6875 mono_mb_emit_byte (mb, CEE_ADD);
6877 mono_mb_emit_byte (mb, CEE_MUL);
6878 mono_mb_emit_byte (mb, CEE_PREFIX1);
6879 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6880 mono_mb_emit_stloc (mb, conv_arg);
6882 mono_mb_emit_ldloc (mb, conv_arg);
6883 mono_mb_emit_stloc (mb, dest_ptr);
6885 /* Emit marshalling loop */
6886 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6887 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6888 mono_mb_emit_stloc (mb, index_var);
6889 label2 = mono_mb_get_label (mb);
6890 mono_mb_emit_ldloc (mb, index_var);
6891 mono_mb_emit_ldloc (mb, src_var);
6892 mono_mb_emit_byte (mb, CEE_LDLEN);
6893 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6895 /* Emit marshalling code */
6898 mono_mb_emit_ldloc (mb, dest_ptr);
6899 mono_mb_emit_ldloc (mb, src_var);
6900 mono_mb_emit_ldloc (mb, index_var);
6901 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6902 mono_mb_emit_icall (mb, conv_to_icall (conv));
6903 mono_mb_emit_byte (mb, CEE_STIND_I);
6905 /* set the src_ptr */
6906 mono_mb_emit_ldloc (mb, src_var);
6907 mono_mb_emit_ldloc (mb, index_var);
6908 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6909 mono_mb_emit_stloc (mb, 0);
6912 mono_mb_emit_ldloc (mb, dest_ptr);
6913 mono_mb_emit_stloc (mb, 1);
6915 /* emit valuetype conversion code */
6916 emit_struct_conv (mb, eklass, FALSE);
6919 mono_mb_emit_add_to_local (mb, index_var, 1);
6920 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6922 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6924 mono_mb_patch_branch (mb, label3);
6926 if (eklass == mono_defaults.string_class) {
6927 /* Null terminate */
6928 mono_mb_emit_ldloc (mb, dest_ptr);
6929 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6930 mono_mb_emit_byte (mb, CEE_STIND_REF);
6933 mono_mb_patch_branch (mb, label1);
6938 case MARSHAL_ACTION_CONV_OUT:
6939 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6940 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);
6941 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6944 if (need_convert || need_free) {
6945 /* FIXME: Optimize blittable case */
6947 guint32 label1, label2, label3;
6948 int index_var, src_ptr, loc, esize;
6950 eklass = klass->element_class;
6951 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6952 esize = sizeof (gpointer);
6954 esize = mono_class_native_size (eklass, NULL);
6955 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6956 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6959 mono_mb_emit_ldarg (mb, argnum);
6961 mono_mb_emit_byte (mb, CEE_LDIND_I);
6962 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6964 mono_mb_emit_ldloc (mb, conv_arg);
6965 mono_mb_emit_stloc (mb, src_ptr);
6967 /* Emit marshalling loop */
6968 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6969 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6970 mono_mb_emit_stloc (mb, index_var);
6971 label2 = mono_mb_get_label (mb);
6972 mono_mb_emit_ldloc (mb, index_var);
6973 mono_mb_emit_ldarg (mb, argnum);
6975 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6976 mono_mb_emit_byte (mb, CEE_LDLEN);
6977 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6979 /* Emit marshalling code */
6981 if (eklass == mono_defaults.stringbuilder_class) {
6982 gboolean need_free2;
6983 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6985 g_assert (conv != -1);
6988 mono_mb_emit_ldarg (mb, argnum);
6990 mono_mb_emit_byte (mb, CEE_LDIND_I);
6991 mono_mb_emit_ldloc (mb, index_var);
6992 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6995 mono_mb_emit_ldloc (mb, src_ptr);
6996 mono_mb_emit_byte (mb, CEE_LDIND_I);
6998 mono_mb_emit_icall (mb, conv_to_icall (conv));
7002 mono_mb_emit_ldloc (mb, src_ptr);
7003 mono_mb_emit_byte (mb, CEE_LDIND_I);
7005 mono_mb_emit_icall (mb, mono_marshal_free);
7008 else if (eklass == mono_defaults.string_class) {
7011 mono_mb_emit_ldloc (mb, src_ptr);
7012 mono_mb_emit_byte (mb, CEE_LDIND_I);
7014 mono_mb_emit_icall (mb, mono_marshal_free);
7019 /* set the src_ptr */
7020 mono_mb_emit_ldloc (mb, src_ptr);
7021 mono_mb_emit_stloc (mb, 0);
7024 mono_mb_emit_ldarg (mb, argnum);
7026 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7027 mono_mb_emit_ldloc (mb, index_var);
7028 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7029 mono_mb_emit_stloc (mb, 1);
7031 /* emit valuetype conversion code */
7032 emit_struct_conv (mb, eklass, TRUE);
7036 mono_mb_emit_ldloc (mb, src_ptr);
7037 mono_mb_emit_stloc (mb, loc);
7038 mono_mb_emit_ldloc (mb, loc);
7040 emit_struct_free (mb, eklass, loc);
7044 mono_mb_emit_add_to_local (mb, index_var, 1);
7045 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7047 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7049 mono_mb_patch_branch (mb, label1);
7050 mono_mb_patch_branch (mb, label3);
7053 if (klass->element_class->blittable) {
7054 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7056 mono_mb_emit_ldarg (mb, argnum);
7057 mono_mb_emit_ldloc (mb, conv_arg);
7058 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7063 case MARSHAL_ACTION_PUSH:
7065 mono_mb_emit_ldloc_addr (mb, conv_arg);
7067 mono_mb_emit_ldloc (mb, conv_arg);
7070 case MARSHAL_ACTION_CONV_RESULT:
7071 /* fixme: we need conversions here */
7072 mono_mb_emit_stloc (mb, 3);
7075 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7077 guint32 label1, label2, label3;
7078 int index_var, src_ptr, loc, esize, param_num, num_elem;
7079 MonoMarshalConv conv;
7080 gboolean is_string = FALSE;
7082 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7083 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7086 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7087 mono_mb_emit_exception_marshal_directive (mb, msg);
7091 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7092 mono_mb_emit_exception_marshal_directive (mb, msg);
7095 if (spec->native != MONO_NATIVE_LPARRAY) {
7096 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7097 mono_mb_emit_exception_marshal_directive (mb, msg);
7101 /* FIXME: t is from the method which is wrapped, not the delegate type */
7102 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7104 param_num = spec->data.array_data.param_num;
7105 num_elem = spec->data.array_data.num_elem;
7106 if (spec->data.array_data.elem_mult == 0)
7107 /* param_num is not specified */
7110 if (param_num == -1) {
7111 if (num_elem <= 0) {
7112 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7113 mono_mb_emit_exception_marshal_directive (mb, msg);
7118 /* FIXME: Optimize blittable case */
7120 eklass = klass->element_class;
7121 if (eklass == mono_defaults.string_class) {
7123 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7125 else if (eklass == mono_defaults.stringbuilder_class) {
7127 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7132 mono_marshal_load_type_info (eklass);
7135 esize = sizeof (gpointer);
7137 esize = mono_class_native_size (eklass, NULL);
7138 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7139 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7141 mono_mb_emit_byte (mb, CEE_LDNULL);
7142 mono_mb_emit_stloc (mb, conv_arg);
7144 /* Check param index */
7145 if (param_num != -1) {
7146 if (param_num >= m->sig->param_count) {
7147 char *msg = g_strdup ("Array size control parameter index is out of range.");
7148 mono_mb_emit_exception_marshal_directive (mb, msg);
7151 switch (m->sig->params [param_num]->type) {
7164 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7165 mono_mb_emit_exception_marshal_directive (mb, msg);
7172 mono_mb_emit_ldarg (mb, argnum);
7173 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7175 mono_mb_emit_ldarg (mb, argnum);
7176 mono_mb_emit_stloc (mb, src_ptr);
7178 /* Create managed array */
7180 * The LPArray marshalling spec says that sometimes param_num starts
7181 * from 1, sometimes it starts from 0. But MS seems to allways start
7185 if (param_num == -1) {
7186 mono_mb_emit_icon (mb, num_elem);
7188 mono_mb_emit_ldarg (mb, param_num);
7190 mono_mb_emit_icon (mb, num_elem);
7191 mono_mb_emit_byte (mb, CEE_ADD);
7193 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7196 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7197 mono_mb_emit_stloc (mb, conv_arg);
7199 if (eklass->blittable) {
7200 mono_mb_emit_ldloc (mb, conv_arg);
7201 mono_mb_emit_byte (mb, CEE_CONV_I);
7202 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7203 mono_mb_emit_byte (mb, CEE_ADD);
7204 mono_mb_emit_ldarg (mb, argnum);
7205 mono_mb_emit_ldloc (mb, conv_arg);
7206 mono_mb_emit_byte (mb, CEE_LDLEN);
7207 mono_mb_emit_icon (mb, esize);
7208 mono_mb_emit_byte (mb, CEE_MUL);
7209 mono_mb_emit_byte (mb, CEE_PREFIX1);
7210 mono_mb_emit_byte (mb, CEE_CPBLK);
7214 /* Emit marshalling loop */
7215 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7216 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7217 mono_mb_emit_stloc (mb, index_var);
7218 label2 = mono_mb_get_label (mb);
7219 mono_mb_emit_ldloc (mb, index_var);
7220 mono_mb_emit_ldloc (mb, conv_arg);
7221 mono_mb_emit_byte (mb, CEE_LDLEN);
7222 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7224 /* Emit marshalling code */
7226 g_assert (conv != -1);
7228 mono_mb_emit_ldloc (mb, conv_arg);
7229 mono_mb_emit_ldloc (mb, index_var);
7231 mono_mb_emit_ldloc (mb, src_ptr);
7232 mono_mb_emit_byte (mb, CEE_LDIND_I);
7234 mono_mb_emit_icall (mb, conv_to_icall (conv));
7235 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7238 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7239 mono_mb_emit_exception_marshal_directive (mb, msg);
7243 mono_mb_emit_add_to_local (mb, index_var, 1);
7244 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7246 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7248 mono_mb_patch_branch (mb, label1);
7249 mono_mb_patch_branch (mb, label3);
7253 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7255 guint32 label1, label2, label3;
7256 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7257 MonoMarshalConv conv;
7258 gboolean is_string = FALSE;
7261 /* Already handled in CONV_IN */
7264 /* These are already checked in CONV_IN */
7265 g_assert (!t->byref);
7266 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7267 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7269 param_num = spec->data.array_data.param_num;
7270 num_elem = spec->data.array_data.num_elem;
7272 if (spec->data.array_data.elem_mult == 0)
7273 /* param_num is not specified */
7276 if (param_num == -1) {
7277 if (num_elem <= 0) {
7278 g_assert_not_reached ();
7282 /* FIXME: Optimize blittable case */
7284 eklass = klass->element_class;
7285 if (eklass == mono_defaults.string_class) {
7287 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7289 else if (eklass == mono_defaults.stringbuilder_class) {
7291 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7296 mono_marshal_load_type_info (eklass);
7299 esize = sizeof (gpointer);
7301 esize = mono_class_native_size (eklass, NULL);
7303 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7304 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7307 mono_mb_emit_ldloc (mb, conv_arg);
7308 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7310 mono_mb_emit_ldarg (mb, argnum);
7311 mono_mb_emit_stloc (mb, dest_ptr);
7313 if (eklass->blittable) {
7315 mono_mb_emit_ldarg (mb, argnum);
7317 mono_mb_emit_ldloc (mb, conv_arg);
7318 mono_mb_emit_byte (mb, CEE_CONV_I);
7319 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7320 mono_mb_emit_byte (mb, CEE_ADD);
7322 mono_mb_emit_ldloc (mb, conv_arg);
7323 mono_mb_emit_byte (mb, CEE_LDLEN);
7324 mono_mb_emit_icon (mb, esize);
7325 mono_mb_emit_byte (mb, CEE_MUL);
7326 mono_mb_emit_byte (mb, CEE_PREFIX1);
7327 mono_mb_emit_byte (mb, CEE_CPBLK);
7331 /* Emit marshalling loop */
7332 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7333 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7334 mono_mb_emit_stloc (mb, index_var);
7335 label2 = mono_mb_get_label (mb);
7336 mono_mb_emit_ldloc (mb, index_var);
7337 mono_mb_emit_ldloc (mb, conv_arg);
7338 mono_mb_emit_byte (mb, CEE_LDLEN);
7339 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7341 /* Emit marshalling code */
7343 g_assert (conv != -1);
7346 mono_mb_emit_ldloc (mb, dest_ptr);
7349 mono_mb_emit_ldloc (mb, conv_arg);
7350 mono_mb_emit_ldloc (mb, index_var);
7352 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7354 mono_mb_emit_icall (mb, conv_to_icall (conv));
7355 mono_mb_emit_byte (mb, CEE_STIND_I);
7358 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7359 mono_mb_emit_exception_marshal_directive (mb, msg);
7363 mono_mb_emit_add_to_local (mb, index_var, 1);
7364 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7366 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7368 mono_mb_patch_branch (mb, label1);
7369 mono_mb_patch_branch (mb, label3);
7373 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7375 guint32 label1, label2, label3;
7376 int index_var, src, dest, esize;
7377 MonoMarshalConv conv = -1;
7378 gboolean is_string = FALSE;
7380 g_assert (!t->byref);
7382 eklass = klass->element_class;
7384 mono_marshal_load_type_info (eklass);
7386 if (eklass == mono_defaults.string_class) {
7388 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7391 g_assert_not_reached ();
7395 esize = sizeof (gpointer);
7397 esize = mono_class_native_size (eklass, NULL);
7399 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7400 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7402 mono_mb_emit_stloc (mb, src);
7403 mono_mb_emit_ldloc (mb, src);
7404 mono_mb_emit_stloc (mb, 3);
7406 /* Check for null */
7407 mono_mb_emit_ldloc (mb, src);
7408 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7410 /* Allocate native array */
7411 mono_mb_emit_icon (mb, esize);
7412 mono_mb_emit_ldloc (mb, src);
7413 mono_mb_emit_byte (mb, CEE_LDLEN);
7415 if (eklass == mono_defaults.string_class) {
7416 /* Make the array bigger for the terminating null */
7417 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7418 mono_mb_emit_byte (mb, CEE_ADD);
7420 mono_mb_emit_byte (mb, CEE_MUL);
7421 mono_mb_emit_icall (mb, mono_marshal_alloc);
7422 mono_mb_emit_stloc (mb, dest);
7423 mono_mb_emit_ldloc (mb, dest);
7424 mono_mb_emit_stloc (mb, 3);
7426 /* Emit marshalling loop */
7427 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7428 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7429 mono_mb_emit_stloc (mb, index_var);
7430 label2 = mono_mb_get_label (mb);
7431 mono_mb_emit_ldloc (mb, index_var);
7432 mono_mb_emit_ldloc (mb, src);
7433 mono_mb_emit_byte (mb, CEE_LDLEN);
7434 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7436 /* Emit marshalling code */
7438 g_assert (conv != -1);
7441 mono_mb_emit_ldloc (mb, dest);
7444 mono_mb_emit_ldloc (mb, src);
7445 mono_mb_emit_ldloc (mb, index_var);
7447 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7449 mono_mb_emit_icall (mb, conv_to_icall (conv));
7450 mono_mb_emit_byte (mb, CEE_STIND_I);
7453 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7454 mono_mb_emit_exception_marshal_directive (mb, msg);
7458 mono_mb_emit_add_to_local (mb, index_var, 1);
7459 mono_mb_emit_add_to_local (mb, dest, esize);
7461 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7463 mono_mb_patch_branch (mb, label3);
7464 mono_mb_patch_branch (mb, label1);
7468 g_assert_not_reached ();
7475 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7476 MonoMarshalSpec *spec,
7477 int conv_arg, MonoType **conv_arg_type,
7478 MarshalAction action)
7480 MonoMethodBuilder *mb = m->mb;
7483 case MARSHAL_ACTION_CONV_IN: {
7484 MonoType *local_type;
7486 guint8 ldc_op = CEE_LDC_I4_1;
7489 local_type = &mono_defaults.int32_class->byval_arg;
7491 switch (spec->native) {
7492 case MONO_NATIVE_I1:
7493 case MONO_NATIVE_U1:
7494 local_type = &mono_defaults.byte_class->byval_arg;
7496 case MONO_NATIVE_VARIANTBOOL:
7497 local_type = &mono_defaults.int16_class->byval_arg;
7498 ldc_op = CEE_LDC_I4_M1;
7500 case MONO_NATIVE_BOOLEAN:
7501 local_type = &mono_defaults.int32_class->byval_arg;
7504 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7505 local_type = &mono_defaults.int32_class->byval_arg;
7510 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7512 *conv_arg_type = local_type;
7513 conv_arg = mono_mb_add_local (mb, local_type);
7515 mono_mb_emit_ldarg (mb, argnum);
7517 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7518 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7519 mono_mb_emit_byte (mb, ldc_op);
7520 mono_mb_emit_stloc (mb, conv_arg);
7521 mono_mb_patch_branch (mb, label_false);
7526 case MARSHAL_ACTION_CONV_OUT:
7528 int label_false, label_end;
7532 mono_mb_emit_ldarg (mb, argnum);
7533 mono_mb_emit_ldloc (mb, conv_arg);
7535 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7536 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7538 label_end = mono_mb_emit_branch (mb, CEE_BR);
7539 mono_mb_patch_branch (mb, label_false);
7540 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7541 mono_mb_patch_branch (mb, label_end);
7543 mono_mb_emit_byte (mb, CEE_STIND_I1);
7547 case MARSHAL_ACTION_PUSH:
7549 mono_mb_emit_ldloc_addr (mb, conv_arg);
7551 mono_mb_emit_ldloc (mb, conv_arg);
7553 mono_mb_emit_ldarg (mb, argnum);
7556 case MARSHAL_ACTION_CONV_RESULT:
7557 /* maybe we need to make sure that it fits within 8 bits */
7558 mono_mb_emit_stloc (mb, 3);
7561 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7562 MonoClass* conv_arg_class = mono_defaults.int32_class;
7563 guint8 ldop = CEE_LDIND_I4;
7564 int label_null, label_false;
7566 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7569 switch (spec->native) {
7570 case MONO_NATIVE_I1:
7571 case MONO_NATIVE_U1:
7572 conv_arg_class = mono_defaults.byte_class;
7573 ldop = CEE_LDIND_I1;
7575 case MONO_NATIVE_VARIANTBOOL:
7576 conv_arg_class = mono_defaults.int16_class;
7577 ldop = CEE_LDIND_I2;
7579 case MONO_NATIVE_BOOLEAN:
7582 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7587 *conv_arg_type = &conv_arg_class->this_arg;
7589 *conv_arg_type = &conv_arg_class->byval_arg;
7592 mono_mb_emit_ldarg (mb, argnum);
7596 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7597 mono_mb_emit_ldarg (mb, argnum);
7598 mono_mb_emit_byte (mb, ldop);
7602 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7603 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7604 mono_mb_emit_stloc (mb, conv_arg);
7605 mono_mb_patch_branch (mb, label_false);
7608 mono_mb_patch_branch (mb, label_null);
7612 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7613 guint8 stop = CEE_STIND_I4;
7614 guint8 ldc_op = CEE_LDC_I4_1;
7615 int label_null,label_false, label_end;;
7620 switch (spec->native) {
7621 case MONO_NATIVE_I1:
7622 case MONO_NATIVE_U1:
7623 stop = CEE_STIND_I1;
7625 case MONO_NATIVE_VARIANTBOOL:
7626 stop = CEE_STIND_I2;
7627 ldc_op = CEE_LDC_I4_M1;
7635 mono_mb_emit_ldarg (mb, argnum);
7636 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7638 mono_mb_emit_ldarg (mb, argnum);
7639 mono_mb_emit_ldloc (mb, conv_arg);
7641 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7642 mono_mb_emit_byte (mb, ldc_op);
7643 label_end = mono_mb_emit_branch (mb, CEE_BR);
7645 mono_mb_patch_branch (mb, label_false);
7646 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7647 mono_mb_patch_branch (mb, label_end);
7649 mono_mb_emit_byte (mb, stop);
7650 mono_mb_patch_branch (mb, label_null);
7655 g_assert_not_reached ();
7662 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7663 MonoMarshalSpec *spec, int conv_arg,
7664 MonoType **conv_arg_type, MarshalAction action)
7666 MonoMethodBuilder *mb = m->mb;
7669 case MARSHAL_ACTION_CONV_IN:
7670 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7671 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7672 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7676 case MARSHAL_ACTION_PUSH:
7677 mono_mb_emit_ldarg (mb, argnum);
7680 case MARSHAL_ACTION_CONV_RESULT:
7681 /* no conversions necessary */
7682 mono_mb_emit_stloc (mb, 3);
7693 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7694 MonoMarshalSpec *spec, int conv_arg,
7695 MonoType **conv_arg_type, MarshalAction action)
7697 MonoMethodBuilder *mb = m->mb;
7700 case MARSHAL_ACTION_PUSH:
7701 /* fixme: dont know how to marshal that. We cant simply
7702 * convert it to a one byte UTF8 character, because an
7703 * unicode character may need more that one byte in UTF8 */
7704 mono_mb_emit_ldarg (mb, argnum);
7707 case MARSHAL_ACTION_CONV_RESULT:
7708 /* fixme: we need conversions here */
7709 mono_mb_emit_stloc (mb, 3);
7720 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7721 MonoMarshalSpec *spec, int conv_arg,
7722 MonoType **conv_arg_type, MarshalAction action)
7724 MonoMethodBuilder *mb = m->mb;
7727 case MARSHAL_ACTION_PUSH:
7728 mono_mb_emit_ldarg (mb, argnum);
7731 case MARSHAL_ACTION_CONV_RESULT:
7732 /* no conversions necessary */
7733 mono_mb_emit_stloc (mb, 3);
7744 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7745 MonoMarshalSpec *spec, int conv_arg,
7746 MonoType **conv_arg_type, MarshalAction action)
7748 /* Ensure that we have marshalling info for this param */
7749 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7751 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7752 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7754 if (spec && spec->native == MONO_NATIVE_ASANY)
7755 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7758 case MONO_TYPE_VALUETYPE:
7759 if (t->data.klass == mono_defaults.handleref_class)
7760 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7762 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7763 case MONO_TYPE_STRING:
7764 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7765 case MONO_TYPE_CLASS:
7766 case MONO_TYPE_OBJECT:
7767 if (spec && spec->native == MONO_NATIVE_STRUCT)
7768 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7771 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7772 spec->native == MONO_NATIVE_IDISPATCH ||
7773 spec->native == MONO_NATIVE_INTERFACE))
7774 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7775 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7776 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7777 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7778 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7781 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7782 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7783 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7785 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7786 case MONO_TYPE_ARRAY:
7787 case MONO_TYPE_SZARRAY:
7788 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7789 case MONO_TYPE_BOOLEAN:
7790 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7792 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7793 case MONO_TYPE_CHAR:
7794 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7807 case MONO_TYPE_FNPTR:
7808 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7809 case MONO_TYPE_GENERICINST:
7810 if (mono_type_generic_inst_is_valuetype (t))
7811 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7813 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7820 * mono_marshal_emit_native_wrapper:
7821 * @image: the image to use for looking up custom marshallers
7822 * @sig: The signature of the native function
7823 * @piinfo: Marshalling information
7824 * @mspecs: Marshalling information
7825 * @aot: whenever the created method will be compiled by the AOT compiler
7826 * @method: if non-NULL, the pinvoke method to call
7827 * @check_exceptions: Whenever to check for pending exceptions after the native call
7829 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7832 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7834 EmitMarshalContext m;
7835 MonoMethodSignature *csig;
7837 int i, argnum, *tmp_locals;
7839 static MonoMethodSignature *get_last_error_sig = NULL;
7844 /* we copy the signature, so that we can set pinvoke to 0 */
7845 csig = signature_dup (mb->method->klass->image, sig);
7850 /* we allocate local for use with emit_struct_conv() */
7851 /* allocate local 0 (pointer) src_ptr */
7852 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7853 /* allocate local 1 (pointer) dst_ptr */
7854 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7855 /* allocate local 2 (boolean) delete_old */
7856 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7858 /* delete_old = FALSE */
7859 mono_mb_emit_icon (mb, 0);
7860 mono_mb_emit_stloc (mb, 2);
7862 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7863 /* allocate local 3 to store the return value */
7864 mono_mb_add_local (mb, sig->ret);
7867 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7868 /* Return type custom marshaling */
7870 * Since we can't determine the return type of the unmanaged function,
7871 * we assume it returns a pointer, and pass that pointer to
7872 * MarshalNativeToManaged.
7874 csig->ret = &mono_defaults.int_class->byval_arg;
7877 /* we first do all conversions */
7878 tmp_locals = alloca (sizeof (int) * sig->param_count);
7879 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7881 for (i = 0; i < sig->param_count; i ++) {
7882 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7885 /* push all arguments */
7888 mono_mb_emit_byte (mb, CEE_LDARG_0);
7890 for (i = 0; i < sig->param_count; i++) {
7891 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7894 /* call the native method */
7895 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7897 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7899 g_assert_not_reached ();
7904 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7905 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7906 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7907 mono_mb_emit_calli (mb, csig);
7909 mono_mb_emit_native_call (mb, csig, func);
7913 /* Set LastError if needed */
7914 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7915 if (!get_last_error_sig) {
7916 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7917 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7918 get_last_error_sig->pinvoke = 1;
7923 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7924 * clobber its value.
7926 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7927 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7929 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7933 /* convert the result */
7934 if (!sig->ret->byref) {
7935 MonoMarshalSpec *spec = mspecs [0];
7936 type = sig->ret->type;
7938 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7939 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7944 case MONO_TYPE_VOID:
7946 case MONO_TYPE_VALUETYPE:
7947 klass = sig->ret->data.klass;
7948 if (klass->enumtype) {
7949 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7952 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7966 case MONO_TYPE_FNPTR:
7967 case MONO_TYPE_STRING:
7968 case MONO_TYPE_CLASS:
7969 case MONO_TYPE_OBJECT:
7970 case MONO_TYPE_BOOLEAN:
7971 case MONO_TYPE_ARRAY:
7972 case MONO_TYPE_SZARRAY:
7973 case MONO_TYPE_CHAR:
7975 case MONO_TYPE_GENERICINST:
7976 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7978 case MONO_TYPE_TYPEDBYREF:
7980 g_warning ("return type 0x%02x unknown", sig->ret->type);
7981 g_assert_not_reached ();
7985 mono_mb_emit_stloc (mb, 3);
7989 * Need to call this after converting the result since MONO_VTADDR needs
7990 * to be adjacent to the call instruction.
7992 if (check_exceptions)
7993 emit_thread_interrupt_checkpoint (mb);
7995 /* we need to convert byref arguments back and free string arrays */
7996 for (i = 0; i < sig->param_count; i++) {
7997 MonoType *t = sig->params [i];
7998 MonoMarshalSpec *spec = mspecs [i + 1];
8000 argnum = i + sig->hasthis;
8002 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8003 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8008 case MONO_TYPE_STRING:
8009 case MONO_TYPE_VALUETYPE:
8010 case MONO_TYPE_CLASS:
8011 case MONO_TYPE_OBJECT:
8012 case MONO_TYPE_SZARRAY:
8013 case MONO_TYPE_BOOLEAN:
8014 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8019 if (!MONO_TYPE_IS_VOID(sig->ret))
8020 mono_mb_emit_ldloc (mb, 3);
8022 mono_mb_emit_byte (mb, CEE_RET);
8025 G_GNUC_UNUSED static void
8026 code_for (MonoMethod *method) {
8027 MonoMethodHeader *header = mono_method_get_header (method);
8028 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));
8032 * mono_marshal_get_native_wrapper:
8033 * @method: The MonoMethod to wrap.
8034 * @check_exceptions: Whenever to check for pending exceptions
8036 * generates IL code for the pinvoke wrapper (the generated method
8037 * calls the unmanaged code in piinfo->addr)
8040 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8042 MonoMethodSignature *sig, *csig;
8043 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8044 MonoMethodBuilder *mb;
8045 MonoMarshalSpec **mspecs;
8048 gboolean pinvoke = FALSE;
8051 const char *exc_class = "MissingMethodException";
8052 const char *exc_arg = NULL;
8054 g_assert (method != NULL);
8055 g_assert (mono_method_signature (method)->pinvoke);
8058 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8060 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8061 if ((res = mono_marshal_find_in_cache (cache, method)))
8064 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8066 return mono_cominterop_get_native_wrapper (method);
8068 g_assert_not_reached ();
8072 sig = mono_method_signature (method);
8074 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8075 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8078 if (!piinfo->addr) {
8080 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8081 exc_arg = "Method contains unsupported native code";
8083 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8085 piinfo->addr = mono_lookup_internal_call (method);
8088 /* hack - redirect certain string constructors to CreateString */
8089 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8090 g_assert (!pinvoke);
8091 g_assert (method->string_ctor);
8092 g_assert (sig->hasthis);
8094 /* CreateString returns a value */
8095 csig = signature_dup (method->klass->image, sig);
8096 csig->ret = &mono_defaults.string_class->byval_arg;
8100 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8101 if (!strcmp ("CreateString", res->name) &&
8102 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8104 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8105 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8107 /* create a wrapper to preserve .ctor in stack trace */
8108 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8110 mono_mb_emit_byte (mb, CEE_LDARG_0);
8111 for (i = 1; i <= csig->param_count; i++)
8112 mono_mb_emit_ldarg (mb, i);
8113 mono_mb_emit_managed_call (mb, res, NULL);
8114 mono_mb_emit_byte (mb, CEE_RET);
8116 /* use native_wrapper_cache because internal calls are looked up there */
8117 res = mono_mb_create_and_cache (cache, method,
8118 mb, csig, csig->param_count + 1);
8126 /* exception will be thrown */
8127 piinfo->addr = NULL;
8128 g_warning ("cannot find CreateString for .ctor");
8131 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8133 mb->method->save_lmf = 1;
8136 * In AOT mode and embedding scenarios, it is possible that the icall is not
8137 * registered in the runtime doing the AOT compilation.
8139 if (!piinfo->addr && !aot) {
8140 mono_mb_emit_exception (mb, exc_class, exc_arg);
8141 csig = signature_dup (method->klass->image, sig);
8143 res = mono_mb_create_and_cache (cache, method,
8144 mb, csig, csig->param_count + 16);
8149 /* internal calls: we simply push all arguments and call the method (no conversions) */
8150 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8152 csig = signature_dup_add_this (sig, method->klass);
8154 csig = signature_dup (method->klass->image, sig);
8156 /* hack - string constructors returns a value */
8157 if (method->string_ctor)
8158 csig->ret = &mono_defaults.string_class->byval_arg;
8164 * Add a null check since public icalls can be called with 'call' which
8165 * does no such check.
8167 mono_mb_emit_byte (mb, CEE_LDARG_0);
8168 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8169 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8170 mono_mb_patch_branch (mb, pos);
8172 mono_mb_emit_byte (mb, CEE_LDARG_0);
8175 for (i = 0; i < sig->param_count; i++)
8176 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8179 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8180 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8181 mono_mb_emit_calli (mb, csig);
8183 g_assert (piinfo->addr);
8184 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8186 if (check_exceptions)
8187 emit_thread_interrupt_checkpoint (mb);
8188 mono_mb_emit_byte (mb, CEE_RET);
8190 csig = signature_dup (method->klass->image, csig);
8192 res = mono_mb_create_and_cache (cache, method,
8193 mb, csig, csig->param_count + 16);
8200 g_assert (piinfo->addr);
8202 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8203 mono_method_get_marshal_info (method, mspecs);
8205 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8207 csig = signature_dup (method->klass->image, sig);
8209 res = mono_mb_create_and_cache (cache, method,
8210 mb, csig, csig->param_count + 16);
8213 for (i = sig->param_count; i >= 0; i--)
8215 mono_metadata_free_marshal_spec (mspecs [i]);
8218 /* code_for (res); */
8224 * mono_marshal_get_native_func_wrapper:
8225 * @image: The image to use for memory allocation and for looking up custom marshallers.
8226 * @sig: The signature of the function
8227 * @func: The native function to wrap
8229 * Returns a wrapper method around native functions, similar to the pinvoke
8233 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8234 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8236 MonoMethodSignature *csig;
8238 MonoMethodBuilder *mb;
8243 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8244 if ((res = mono_marshal_find_in_cache (cache, func)))
8247 name = g_strdup_printf ("wrapper_native_%p", func);
8248 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8249 mb->method->save_lmf = 1;
8251 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8253 csig = signature_dup (image, sig);
8255 res = mono_mb_create_and_cache (cache, func,
8256 mb, csig, csig->param_count + 16);
8259 mono_marshal_set_wrapper_info (res, NULL);
8261 /* code_for (res); */
8267 * mono_marshal_emit_managed_wrapper:
8269 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8270 * the delegate which wraps the managed method to be called. For closed delegates,
8271 * it could have fewer parameters than the method it wraps.
8272 * THIS_LOC is the memory location where the target of the delegate is stored.
8275 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8277 MonoMethodSignature *sig, *csig;
8279 gboolean closed = FALSE;
8284 /* allocate local 0 (pointer) src_ptr */
8285 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8286 /* allocate local 1 (pointer) dst_ptr */
8287 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8288 /* allocate local 2 (boolean) delete_old */
8289 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8291 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8292 /* Closed delegate */
8293 g_assert (sig->param_count == invoke_sig->param_count + 1);
8295 /* Use a new signature without the first argument */
8296 sig = mono_metadata_signature_dup (sig);
8297 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8298 sig->param_count --;
8301 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8302 /* allocate local 3 to store the return value */
8303 mono_mb_add_local (mb, sig->ret);
8306 mono_mb_emit_icon (mb, 0);
8307 mono_mb_emit_stloc (mb, 2);
8309 /* we first do all conversions */
8310 tmp_locals = alloca (sizeof (int) * sig->param_count);
8311 for (i = 0; i < sig->param_count; i ++) {
8312 MonoType *t = sig->params [i];
8315 case MONO_TYPE_OBJECT:
8316 case MONO_TYPE_CLASS:
8317 case MONO_TYPE_VALUETYPE:
8318 case MONO_TYPE_ARRAY:
8319 case MONO_TYPE_SZARRAY:
8320 case MONO_TYPE_STRING:
8321 case MONO_TYPE_BOOLEAN:
8322 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8331 emit_thread_interrupt_checkpoint (mb);
8334 if (target_handle) {
8335 mono_mb_emit_icon (mb, (gint32)target_handle);
8336 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8339 g_assert_not_reached ();
8341 } else if (closed) {
8342 mono_mb_emit_icon (mb, (gint32)target_handle);
8343 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8346 for (i = 0; i < sig->param_count; i++) {
8347 MonoType *t = sig->params [i];
8349 if (tmp_locals [i]) {
8351 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8353 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8356 mono_mb_emit_ldarg (mb, i);
8359 mono_mb_emit_managed_call (mb, method, NULL);
8361 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8362 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8363 } else if (!sig->ret->byref) {
8364 switch (sig->ret->type) {
8365 case MONO_TYPE_VOID:
8367 case MONO_TYPE_BOOLEAN:
8370 case MONO_TYPE_CHAR:
8382 case MONO_TYPE_OBJECT:
8383 mono_mb_emit_stloc (mb, 3);
8385 case MONO_TYPE_STRING:
8386 csig->ret = &mono_defaults.int_class->byval_arg;
8387 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8389 case MONO_TYPE_VALUETYPE:
8390 case MONO_TYPE_CLASS:
8391 case MONO_TYPE_SZARRAY:
8392 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8395 g_warning ("return type 0x%02x unknown", sig->ret->type);
8396 g_assert_not_reached ();
8399 mono_mb_emit_stloc (mb, 3);
8402 /* Convert byref arguments back */
8403 for (i = 0; i < sig->param_count; i ++) {
8404 MonoType *t = sig->params [i];
8405 MonoMarshalSpec *spec = mspecs [i + 1];
8407 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8408 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8410 else if (t->byref) {
8412 case MONO_TYPE_CLASS:
8413 case MONO_TYPE_VALUETYPE:
8414 case MONO_TYPE_OBJECT:
8415 case MONO_TYPE_STRING:
8416 case MONO_TYPE_BOOLEAN:
8417 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8421 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8422 /* The [Out] information is encoded in the delegate signature */
8424 case MONO_TYPE_SZARRAY:
8425 case MONO_TYPE_CLASS:
8426 case MONO_TYPE_VALUETYPE:
8427 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8430 g_assert_not_reached ();
8435 if (m->retobj_var) {
8436 mono_mb_emit_ldloc (mb, m->retobj_var);
8437 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8438 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8441 if (!MONO_TYPE_IS_VOID(sig->ret))
8442 mono_mb_emit_ldloc (mb, 3);
8443 mono_mb_emit_byte (mb, CEE_RET);
8452 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8454 MonoMethodSignature *sig;
8459 * Under windows, delegates passed to native code must use the STDCALL
8460 * calling convention.
8462 csig->call_convention = MONO_CALL_STDCALL;
8465 sig = mono_method_signature (method);
8467 /* Change default calling convention if needed */
8468 /* Why is this a modopt ? */
8469 if (sig->ret && sig->ret->num_mods) {
8470 for (i = 0; i < sig->ret->num_mods; ++i) {
8471 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8472 g_assert (cmod_class);
8473 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8474 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8475 csig->call_convention = MONO_CALL_C;
8476 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8477 csig->call_convention = MONO_CALL_STDCALL;
8478 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8479 csig->call_convention = MONO_CALL_FASTCALL;
8480 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8481 csig->call_convention = MONO_CALL_THISCALL;
8488 * generates IL code to call managed methods from unmanaged code
8491 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8493 static MonoClass *UnmanagedFunctionPointerAttribute;
8494 MonoMethodSignature *sig, *csig, *invoke_sig;
8495 MonoMethodBuilder *mb;
8496 MonoMethod *res, *invoke;
8497 MonoMarshalSpec **mspecs;
8498 MonoMethodPInvoke piinfo;
8501 EmitMarshalContext m;
8503 g_assert (method != NULL);
8504 g_assert (!mono_method_signature (method)->pinvoke);
8507 * FIXME: Should cache the method+delegate type pair, since the same method
8508 * could be called with different delegates, thus different marshalling
8511 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8512 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8515 invoke = mono_get_delegate_invoke (delegate_klass);
8516 invoke_sig = mono_method_signature (invoke);
8518 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8519 mono_method_get_marshal_info (invoke, mspecs);
8521 sig = mono_method_signature (method);
8523 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8525 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8526 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8528 /* we copy the signature, so that we can modify it */
8530 /* Need to free this later */
8531 csig = mono_metadata_signature_dup (invoke_sig);
8533 csig = signature_dup (method->klass->image, invoke_sig);
8542 m.image = method->klass->image;
8544 mono_marshal_set_callconv_from_modopt (invoke, csig);
8546 /* Handle the UnmanagedFunctionPointerAttribute */
8547 if (!UnmanagedFunctionPointerAttribute)
8548 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8550 /* The attribute is only available in Net 2.0 */
8551 if (UnmanagedFunctionPointerAttribute) {
8552 MonoCustomAttrInfo *cinfo;
8553 MonoCustomAttrEntry *attr;
8556 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8557 * contents of the attribute without constructing it, as that might not be
8558 * possible when running in cross-compiling mode.
8560 cinfo = mono_custom_attrs_from_class (delegate_klass);
8563 for (i = 0; i < cinfo->num_attrs; ++i) {
8564 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8565 attr = &cinfo->attrs [i];
8571 MonoArray *typed_args, *named_args;
8572 CattrNamedArg *arginfo;
8576 MonoBoolean set_last_error = 0;
8577 MonoBoolean best_fit_mapping = 0;
8578 MonoBoolean throw_on_unmappable = 0;
8580 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8582 g_assert (mono_array_length (typed_args) == 1);
8585 o = mono_array_get (typed_args, MonoObject*, 0);
8586 call_conv = *(gint32*)mono_object_unbox (o);
8589 for (i = 0; i < mono_array_length (named_args); ++i) {
8590 CattrNamedArg *narg = &arginfo [i];
8592 o = mono_array_get (named_args, MonoObject*, i);
8594 g_assert (narg->field);
8595 if (!strcmp (narg->field->name, "CharSet")) {
8596 charset = *(gint32*)mono_object_unbox (o);
8597 } else if (!strcmp (narg->field->name, "SetLastError")) {
8598 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8599 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8600 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8601 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8602 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8604 g_assert_not_reached ();
8610 memset (&piinfo, 0, sizeof (piinfo));
8612 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8614 csig->call_convention = call_conv - 1;
8617 if (cinfo && !cinfo->cached)
8618 mono_custom_attrs_free (cinfo);
8621 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8624 res = mono_mb_create_and_cache (cache, method,
8625 mb, csig, sig->param_count + 16);
8628 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8632 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8634 mono_metadata_free_marshal_spec (mspecs [i]);
8637 /* code_for (res); */
8643 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8646 MonoMethodSignature *sig;
8647 MonoMethodBuilder *mb;
8652 method = mono_get_method (image, token, NULL);
8655 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8656 MonoMethodSignature *csig;
8657 MonoMarshalSpec **mspecs;
8658 EmitMarshalContext m;
8660 sig = mono_method_signature (method);
8661 g_assert (!sig->hasthis);
8663 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8664 mono_method_get_marshal_info (method, mspecs);
8666 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8667 csig = signature_dup (image, sig);
8678 mono_marshal_set_callconv_from_modopt (method, csig);
8680 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8682 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8685 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8688 for (i = sig->param_count; i >= 0; i--)
8690 mono_metadata_free_marshal_spec (mspecs [i]);
8693 return mono_compile_method (method);
8696 sig = mono_method_signature (method);
8697 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8699 param_count = sig->param_count + sig->hasthis;
8700 for (i = 0; i < param_count; i++)
8701 mono_mb_emit_ldarg (mb, i);
8703 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8704 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8706 mono_mb_emit_op (mb, CEE_CALL, method);
8707 mono_mb_emit_byte (mb, CEE_RET);
8710 method = mono_mb_create_method (mb, sig, param_count);
8713 return mono_compile_method (method);
8716 static MonoReflectionType *
8717 type_from_handle (MonoType *handle)
8719 MonoDomain *domain = mono_domain_get ();
8720 MonoClass *klass = mono_class_from_mono_type (handle);
8722 MONO_ARCH_SAVE_REGS;
8724 mono_class_init (klass);
8725 return mono_type_get_object (domain, handle);
8729 * mono_marshal_get_isinst:
8730 * @klass: the type of the field
8732 * This method generates a function which can be used to check if an object is
8733 * an instance of the given type, icluding the case where the object is a proxy.
8734 * The generated function has the following signature:
8735 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8738 mono_marshal_get_isinst (MonoClass *klass)
8740 static MonoMethodSignature *isint_sig = NULL;
8743 int pos_was_ok, pos_failed, pos_end, pos_end2;
8745 MonoMethodBuilder *mb;
8747 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8748 if ((res = mono_marshal_find_in_cache (cache, klass)))
8752 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8753 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8754 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8755 isint_sig->pinvoke = 0;
8758 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8759 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8762 mb->method->save_lmf = 1;
8764 /* check if the object is a proxy that needs special cast */
8765 mono_mb_emit_ldarg (mb, 0);
8766 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8767 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8769 /* The result of MONO_ISINST can be:
8770 0) the type check succeeded
8771 1) the type check did not succeed
8772 2) a CanCastTo call is needed */
8774 mono_mb_emit_byte (mb, CEE_DUP);
8775 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8777 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8778 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8780 /* get the real proxy from the transparent proxy*/
8782 mono_mb_emit_ldarg (mb, 0);
8783 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8784 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8788 mono_mb_patch_branch (mb, pos_failed);
8789 mono_mb_emit_byte (mb, CEE_LDNULL);
8790 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8794 mono_mb_patch_branch (mb, pos_was_ok);
8795 mono_mb_emit_byte (mb, CEE_POP);
8796 mono_mb_emit_ldarg (mb, 0);
8800 mono_mb_patch_branch (mb, pos_end);
8801 mono_mb_patch_branch (mb, pos_end2);
8802 mono_mb_emit_byte (mb, CEE_RET);
8804 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8811 * mono_marshal_get_castclass:
8812 * @klass: the type of the field
8814 * This method generates a function which can be used to cast an object to
8815 * an instance of the given type, icluding the case where the object is a proxy.
8816 * The generated function has the following signature:
8817 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8820 mono_marshal_get_castclass (MonoClass *klass)
8822 static MonoMethodSignature *castclass_sig = NULL;
8825 int pos_was_ok, pos_was_ok2;
8827 MonoMethodBuilder *mb;
8829 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8830 if ((res = mono_marshal_find_in_cache (cache, klass)))
8833 if (!castclass_sig) {
8834 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8835 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8836 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8837 castclass_sig->pinvoke = 0;
8840 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8841 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8844 mb->method->save_lmf = 1;
8846 /* check if the object is a proxy that needs special cast */
8847 mono_mb_emit_ldarg (mb, 0);
8848 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8849 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8851 /* The result of MONO_ISINST can be:
8852 0) the cast is valid
8853 1) cast of unknown proxy type
8854 or an exception if the cast is is invalid
8857 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8859 /* get the real proxy from the transparent proxy*/
8861 mono_mb_emit_ldarg (mb, 0);
8862 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8863 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8866 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8869 mono_mb_patch_branch (mb, pos_was_ok);
8870 mono_mb_patch_branch (mb, pos_was_ok2);
8871 mono_mb_emit_ldarg (mb, 0);
8874 mono_mb_emit_byte (mb, CEE_RET);
8876 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8883 mono_marshal_get_proxy_cancast (MonoClass *klass)
8885 static MonoMethodSignature *isint_sig = NULL;
8888 int pos_failed, pos_end;
8890 MonoMethod *can_cast_to;
8891 MonoMethodDesc *desc;
8892 MonoMethodBuilder *mb;
8894 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8895 if ((res = mono_marshal_find_in_cache (cache, klass)))
8899 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8900 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8901 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8902 isint_sig->pinvoke = 0;
8905 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8906 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8909 mb->method->save_lmf = 1;
8911 /* get the real proxy from the transparent proxy*/
8912 mono_mb_emit_ldarg (mb, 0);
8913 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8914 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8916 /* get the reflection type from the type handle */
8917 mono_mb_emit_ptr (mb, &klass->byval_arg);
8918 mono_mb_emit_icall (mb, type_from_handle);
8920 mono_mb_emit_ldarg (mb, 0);
8922 /* make the call to CanCastTo (type, ob) */
8923 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8924 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8925 g_assert (can_cast_to);
8926 mono_method_desc_free (desc);
8927 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8929 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8931 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8932 mono_mb_emit_ptr (mb, &klass->byval_arg);
8933 mono_mb_emit_icall (mb, type_from_handle);
8934 mono_mb_emit_ldarg (mb, 0);
8936 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8937 emit_thread_interrupt_checkpoint (mb);
8939 mono_mb_emit_ldarg (mb, 0);
8940 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8944 mono_mb_patch_branch (mb, pos_failed);
8945 mono_mb_emit_byte (mb, CEE_LDNULL);
8949 mono_mb_patch_branch (mb, pos_end);
8950 mono_mb_emit_byte (mb, CEE_RET);
8952 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8959 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8962 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8963 klass = mono_class_from_mono_type (rtype->type);
8964 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8968 * mono_marshal_get_struct_to_ptr:
8971 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8974 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8976 MonoMethodBuilder *mb;
8977 static MonoMethod *stoptr = NULL;
8980 g_assert (klass != NULL);
8982 mono_marshal_load_type_info (klass);
8984 if (klass->marshal_info->str_to_ptr)
8985 return klass->marshal_info->str_to_ptr;
8988 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8991 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8993 if (klass->blittable) {
8994 mono_mb_emit_byte (mb, CEE_LDARG_1);
8995 mono_mb_emit_byte (mb, CEE_LDARG_0);
8996 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8997 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8998 mono_mb_emit_byte (mb, CEE_PREFIX1);
8999 mono_mb_emit_byte (mb, CEE_CPBLK);
9002 /* allocate local 0 (pointer) src_ptr */
9003 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9004 /* allocate local 1 (pointer) dst_ptr */
9005 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9006 /* allocate local 2 (boolean) delete_old */
9007 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9008 mono_mb_emit_byte (mb, CEE_LDARG_2);
9009 mono_mb_emit_stloc (mb, 2);
9011 /* initialize src_ptr to point to the start of object data */
9012 mono_mb_emit_byte (mb, CEE_LDARG_0);
9013 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9014 mono_mb_emit_stloc (mb, 0);
9016 /* initialize dst_ptr */
9017 mono_mb_emit_byte (mb, CEE_LDARG_1);
9018 mono_mb_emit_stloc (mb, 1);
9020 emit_struct_conv (mb, klass, FALSE);
9023 mono_mb_emit_byte (mb, CEE_RET);
9025 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9028 klass->marshal_info->str_to_ptr = res;
9033 * mono_marshal_get_ptr_to_struct:
9036 * generates IL code for PtrToStructure (IntPtr src, object structure)
9039 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9041 MonoMethodBuilder *mb;
9042 static MonoMethodSignature *ptostr = NULL;
9045 g_assert (klass != NULL);
9047 mono_marshal_load_type_info (klass);
9049 if (klass->marshal_info->ptr_to_str)
9050 return klass->marshal_info->ptr_to_str;
9053 MonoMethodSignature *sig;
9055 /* Create the signature corresponding to
9056 static void PtrToStructure (IntPtr ptr, object structure);
9057 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9058 sig = mono_create_icall_signature ("void ptr object");
9059 sig = signature_dup (mono_defaults.corlib, sig);
9061 mono_memory_barrier ();
9065 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9067 if (klass->blittable) {
9068 mono_mb_emit_byte (mb, CEE_LDARG_1);
9069 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9070 mono_mb_emit_byte (mb, CEE_LDARG_0);
9071 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9072 mono_mb_emit_byte (mb, CEE_PREFIX1);
9073 mono_mb_emit_byte (mb, CEE_CPBLK);
9076 /* allocate local 0 (pointer) src_ptr */
9077 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9078 /* allocate local 1 (pointer) dst_ptr */
9079 mono_mb_add_local (mb, &klass->this_arg);
9081 /* initialize src_ptr to point to the start of object data */
9082 mono_mb_emit_byte (mb, CEE_LDARG_0);
9083 mono_mb_emit_stloc (mb, 0);
9085 /* initialize dst_ptr */
9086 mono_mb_emit_byte (mb, CEE_LDARG_1);
9087 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9088 mono_mb_emit_stloc (mb, 1);
9090 emit_struct_conv (mb, klass, TRUE);
9093 mono_mb_emit_byte (mb, CEE_RET);
9095 res = mono_mb_create_method (mb, ptostr, 0);
9098 klass->marshal_info->ptr_to_str = res;
9103 * generates IL code for the synchronized wrapper: the generated method
9104 * calls METHOD while locking 'this' or the parent type.
9107 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9109 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9110 MonoMethodSignature *sig;
9111 MonoExceptionClause *clause;
9112 MonoMethodBuilder *mb;
9115 int i, pos, this_local, ret_local = 0;
9119 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9122 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9123 if ((res = mono_marshal_find_in_cache (cache, method)))
9126 sig = signature_dup (method->klass->image, mono_method_signature (method));
9129 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9132 if (!MONO_TYPE_IS_VOID (sig->ret))
9133 ret_local = mono_mb_add_local (mb, sig->ret);
9135 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9136 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9137 /* This will throw the type load exception when the wrapper is compiled */
9138 mono_mb_emit_byte (mb, CEE_LDNULL);
9139 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9140 mono_mb_emit_byte (mb, CEE_POP);
9142 if (!MONO_TYPE_IS_VOID (sig->ret))
9143 mono_mb_emit_ldloc (mb, ret_local);
9144 mono_mb_emit_byte (mb, CEE_RET);
9146 res = mono_mb_create_and_cache (cache, method,
9147 mb, sig, sig->param_count + 16);
9154 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9156 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9157 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9159 mono_loader_lock ();
9161 if (!enter_method) {
9162 MonoMethodDesc *desc;
9164 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9165 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9166 g_assert (enter_method);
9167 mono_method_desc_free (desc);
9169 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9170 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9171 g_assert (exit_method);
9172 mono_method_desc_free (desc);
9174 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9175 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9176 g_assert (gettypefromhandle_method);
9177 mono_method_desc_free (desc);
9180 mono_loader_unlock ();
9182 /* Push this or the type object */
9183 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9184 /* We have special handling for this in the JIT */
9185 int index = mono_mb_add_data (mb, method->klass);
9186 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9187 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9188 mono_mb_emit_i4 (mb, index);
9190 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9193 mono_mb_emit_ldarg (mb, 0);
9194 mono_mb_emit_stloc (mb, this_local);
9196 /* Call Monitor::Enter() */
9197 mono_mb_emit_ldloc (mb, this_local);
9198 mono_mb_emit_managed_call (mb, enter_method, NULL);
9200 clause->try_offset = mono_mb_get_label (mb);
9202 /* Call the method */
9204 mono_mb_emit_ldarg (mb, 0);
9205 for (i = 0; i < sig->param_count; i++)
9206 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9208 mono_mb_emit_managed_call (mb, method, NULL);
9210 if (!MONO_TYPE_IS_VOID (sig->ret))
9211 mono_mb_emit_stloc (mb, ret_local);
9213 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9215 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9216 clause->handler_offset = mono_mb_get_label (mb);
9218 /* Call Monitor::Exit() */
9219 mono_mb_emit_ldloc (mb, this_local);
9220 mono_mb_emit_managed_call (mb, exit_method, NULL);
9221 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9223 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9225 mono_mb_patch_branch (mb, pos);
9226 if (!MONO_TYPE_IS_VOID (sig->ret))
9227 mono_mb_emit_ldloc (mb, ret_local);
9228 mono_mb_emit_byte (mb, CEE_RET);
9230 mono_mb_set_clauses (mb, 1, clause);
9232 res = mono_mb_create_and_cache (cache, method,
9233 mb, sig, sig->param_count + 16);
9241 * the returned method calls 'method' unboxing the this argument
9244 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9246 MonoMethodSignature *sig = mono_method_signature (method);
9248 MonoMethodBuilder *mb;
9252 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9253 if ((res = mono_marshal_find_in_cache (cache, method)))
9256 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9258 g_assert (sig->hasthis);
9260 mono_mb_emit_ldarg (mb, 0);
9261 mono_mb_emit_icon (mb, sizeof (MonoObject));
9262 mono_mb_emit_byte (mb, CEE_ADD);
9263 for (i = 0; i < sig->param_count; ++i)
9264 mono_mb_emit_ldarg (mb, i + 1);
9265 mono_mb_emit_managed_call (mb, method, NULL);
9266 mono_mb_emit_byte (mb, CEE_RET);
9268 res = mono_mb_create_and_cache (cache, method,
9269 mb, sig, sig->param_count + 16);
9272 /* code_for (res); */
9278 mono_marshal_get_stelemref ()
9280 static MonoMethod* ret = NULL;
9281 MonoMethodSignature *sig;
9282 MonoMethodBuilder *mb;
9284 guint32 b1, b2, b3, b4;
9287 int array_slot_addr;
9292 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9295 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9297 /* void stelemref (void* array, int idx, void* value) */
9298 sig->ret = &mono_defaults.void_class->byval_arg;
9299 sig->params [0] = &mono_defaults.object_class->byval_arg;
9300 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9301 sig->params [2] = &mono_defaults.object_class->byval_arg;
9303 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9304 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9305 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9309 <ldelema (bound check)>
9313 aklass = array->vtable->klass->element_class;
9314 vklass = value->vtable->klass;
9316 if (vklass->idepth < aklass->idepth)
9319 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9323 *array_slot_addr = value;
9327 if (mono_object_isinst (value, aklass))
9330 throw new ArrayTypeMismatchException ();
9333 /* ldelema (implicit bound check) */
9334 mono_mb_emit_ldarg (mb, 0);
9335 mono_mb_emit_ldarg (mb, 1);
9336 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9337 mono_mb_emit_stloc (mb, array_slot_addr);
9339 /* if (!value) goto do_store */
9340 mono_mb_emit_ldarg (mb, 2);
9341 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9343 /* aklass = array->vtable->klass->element_class */
9344 mono_mb_emit_ldarg (mb, 0);
9345 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9346 mono_mb_emit_byte (mb, CEE_LDIND_I);
9347 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9348 mono_mb_emit_byte (mb, CEE_LDIND_I);
9349 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9350 mono_mb_emit_byte (mb, CEE_LDIND_I);
9351 mono_mb_emit_stloc (mb, aklass);
9353 /* vklass = value->vtable->klass */
9354 mono_mb_emit_ldarg (mb, 2);
9355 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9356 mono_mb_emit_byte (mb, CEE_LDIND_I);
9357 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9358 mono_mb_emit_byte (mb, CEE_LDIND_I);
9359 mono_mb_emit_stloc (mb, vklass);
9361 /* if (vklass->idepth < aklass->idepth) goto failue */
9362 mono_mb_emit_ldloc (mb, vklass);
9363 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9364 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9366 mono_mb_emit_ldloc (mb, aklass);
9367 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9368 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9370 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9372 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9373 mono_mb_emit_ldloc (mb, vklass);
9374 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9375 mono_mb_emit_byte (mb, CEE_LDIND_I);
9377 mono_mb_emit_ldloc (mb, aklass);
9378 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9379 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9380 mono_mb_emit_icon (mb, 1);
9381 mono_mb_emit_byte (mb, CEE_SUB);
9382 mono_mb_emit_icon (mb, sizeof (void*));
9383 mono_mb_emit_byte (mb, CEE_MUL);
9384 mono_mb_emit_byte (mb, CEE_ADD);
9385 mono_mb_emit_byte (mb, CEE_LDIND_I);
9387 mono_mb_emit_ldloc (mb, aklass);
9389 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9391 copy_pos = mono_mb_get_label (mb);
9393 mono_mb_patch_branch (mb, b1);
9394 mono_mb_emit_ldloc (mb, array_slot_addr);
9395 mono_mb_emit_ldarg (mb, 2);
9396 mono_mb_emit_byte (mb, CEE_STIND_REF);
9398 mono_mb_emit_byte (mb, CEE_RET);
9401 mono_mb_patch_branch (mb, b2);
9402 mono_mb_patch_branch (mb, b3);
9404 mono_mb_emit_ldarg (mb, 2);
9405 mono_mb_emit_ldloc (mb, aklass);
9406 mono_mb_emit_icall (mb, mono_object_isinst);
9408 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9409 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9410 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9412 mono_mb_emit_byte (mb, CEE_RET);
9413 ret = mono_mb_create_method (mb, sig, 4);
9424 /* LOCKING: vars accessed under the marshal lock */
9425 static ArrayElemAddr *elem_addr_cache = NULL;
9426 static int elem_addr_cache_size = 0;
9427 static int elem_addr_cache_next = 0;
9430 * mono_marshal_get_array_address:
9431 * @rank: rank of the array type
9432 * @elem_size: size in bytes of an element of an array.
9434 * Returns a MonoMethd that implements the code to get the address
9435 * of an element in a multi-dimenasional array of @rank dimensions.
9436 * The returned method takes an array as the first argument and then
9437 * @rank indexes for the @rank dimensions.
9440 mono_marshal_get_array_address (int rank, int elem_size)
9443 MonoMethodBuilder *mb;
9444 MonoMethodSignature *sig;
9445 int i, bounds, ind, realidx;
9446 int branch_pos, *branch_positions;
9450 mono_marshal_lock ();
9451 for (i = 0; i < elem_addr_cache_next; ++i) {
9452 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9453 ret = elem_addr_cache [i].method;
9457 mono_marshal_unlock ();
9461 branch_positions = g_new0 (int, rank);
9463 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9465 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9466 sig->ret = &mono_defaults.int_class->byval_arg;
9467 sig->params [0] = &mono_defaults.object_class->byval_arg;
9468 for (i = 0; i < rank; ++i) {
9469 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9472 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9474 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9475 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9476 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9478 /* bounds = array->bounds; */
9479 mono_mb_emit_ldarg (mb, 0);
9480 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9481 mono_mb_emit_byte (mb, CEE_LDIND_I);
9482 mono_mb_emit_stloc (mb, bounds);
9484 /* ind is the overall element index, realidx is the partial index in a single dimension */
9485 /* ind = idx0 - bounds [0].lower_bound */
9486 mono_mb_emit_ldarg (mb, 1);
9487 mono_mb_emit_ldloc (mb, bounds);
9488 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9489 mono_mb_emit_byte (mb, CEE_ADD);
9490 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9491 mono_mb_emit_byte (mb, CEE_SUB);
9492 mono_mb_emit_stloc (mb, ind);
9493 /* if (ind >= bounds [0].length) goto exeception; */
9494 mono_mb_emit_ldloc (mb, ind);
9495 mono_mb_emit_ldloc (mb, bounds);
9496 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9497 mono_mb_emit_byte (mb, CEE_ADD);
9498 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9499 /* note that we use unsigned comparison */
9500 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9502 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9503 * We could also decide to ignore the passed elem_size and get it
9504 * from the array object, to reduce the number of methods we generate:
9505 * the additional cost is 3 memory loads and a non-immediate mul.
9507 for (i = 1; i < rank; ++i) {
9508 /* realidx = idxi - bounds [i].lower_bound */
9509 mono_mb_emit_ldarg (mb, 1 + i);
9510 mono_mb_emit_ldloc (mb, bounds);
9511 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9512 mono_mb_emit_byte (mb, CEE_ADD);
9513 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9514 mono_mb_emit_byte (mb, CEE_SUB);
9515 mono_mb_emit_stloc (mb, realidx);
9516 /* if (realidx >= bounds [i].length) goto exeception; */
9517 mono_mb_emit_ldloc (mb, realidx);
9518 mono_mb_emit_ldloc (mb, bounds);
9519 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9520 mono_mb_emit_byte (mb, CEE_ADD);
9521 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9522 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9523 /* ind = ind * bounds [i].length + realidx */
9524 mono_mb_emit_ldloc (mb, ind);
9525 mono_mb_emit_ldloc (mb, bounds);
9526 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9527 mono_mb_emit_byte (mb, CEE_ADD);
9528 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9529 mono_mb_emit_byte (mb, CEE_MUL);
9530 mono_mb_emit_ldloc (mb, realidx);
9531 mono_mb_emit_byte (mb, CEE_ADD);
9532 mono_mb_emit_stloc (mb, ind);
9535 /* return array->vector + ind * element_size */
9536 mono_mb_emit_ldarg (mb, 0);
9537 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9538 mono_mb_emit_ldloc (mb, ind);
9539 mono_mb_emit_icon (mb, elem_size);
9540 mono_mb_emit_byte (mb, CEE_MUL);
9541 mono_mb_emit_byte (mb, CEE_ADD);
9542 mono_mb_emit_byte (mb, CEE_RET);
9544 /* patch the branches to get here and throw */
9545 for (i = 1; i < rank; ++i) {
9546 mono_mb_patch_branch (mb, branch_positions [i]);
9548 mono_mb_patch_branch (mb, branch_pos);
9549 /* throw exception */
9550 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9552 g_free (branch_positions);
9553 ret = mono_mb_create_method (mb, sig, 4);
9556 /* cache the result */
9558 mono_marshal_lock ();
9559 for (i = 0; i < elem_addr_cache_next; ++i) {
9560 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9561 /* FIXME: free ret */
9562 ret = elem_addr_cache [i].method;
9568 ElementAddrWrapperInfo *info;
9570 if (elem_addr_cache_next >= elem_addr_cache_size) {
9571 int new_size = elem_addr_cache_size + 4;
9572 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9573 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9574 g_free (elem_addr_cache);
9575 elem_addr_cache = new_array;
9576 elem_addr_cache_size = new_size;
9578 elem_addr_cache [elem_addr_cache_next].rank = rank;
9579 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9580 elem_addr_cache [elem_addr_cache_next].method = ret;
9582 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
9584 info->elem_size = elem_size;
9586 mono_marshal_set_wrapper_info (ret, info);
9588 mono_marshal_unlock ();
9593 mono_marshal_alloc (gulong size)
9598 res = CoTaskMemAlloc (size);
9600 res = g_try_malloc ((gulong)size);
9602 mono_gc_out_of_memory ((gulong)size);
9608 mono_marshal_free (gpointer ptr)
9611 CoTaskMemFree (ptr);
9618 mono_marshal_free_array (gpointer *ptr, int size)
9625 for (i = 0; i < size; i++)
9631 mono_marshal_string_to_utf16 (MonoString *s)
9633 return s ? mono_string_chars (s) : NULL;
9637 mono_marshal_string_to_utf16_copy (MonoString *s)
9642 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9643 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9644 res [mono_string_length (s)] = 0;
9650 * mono_marshal_set_last_error:
9652 * This function is invoked to set the last error value from a P/Invoke call
9653 * which has SetLastError set.
9656 mono_marshal_set_last_error (void)
9659 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9661 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9666 mono_marshal_set_last_error_windows (int error)
9669 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9674 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9675 gpointer dest, gint32 length)
9680 MONO_ARCH_SAVE_REGS;
9682 MONO_CHECK_ARG_NULL (src);
9683 MONO_CHECK_ARG_NULL (dest);
9685 if (src->obj.vtable->klass->rank != 1)
9686 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9687 if (start_index < 0)
9688 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9690 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9691 if (start_index + length > mono_array_length (src))
9692 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9694 element_size = mono_array_element_size (src->obj.vtable->klass);
9696 /* no references should be involved */
9697 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9699 memcpy (dest, source_addr, length * element_size);
9703 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9704 MonoArray *dest, gint32 length)
9709 MONO_ARCH_SAVE_REGS;
9711 MONO_CHECK_ARG_NULL (src);
9712 MONO_CHECK_ARG_NULL (dest);
9714 if (dest->obj.vtable->klass->rank != 1)
9715 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9716 if (start_index < 0)
9717 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9719 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9720 if (start_index + length > mono_array_length (dest))
9721 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9723 element_size = mono_array_element_size (dest->obj.vtable->klass);
9725 /* no references should be involved */
9726 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9728 memcpy (dest_addr, src, length * element_size);
9731 #if NO_UNALIGNED_ACCESS
9732 #define RETURN_UNALIGNED(type, addr) \
9735 memcpy(&val, p + offset, sizeof(val)); \
9738 #define WRITE_UNALIGNED(type, addr, val) \
9739 memcpy(addr, &val, sizeof(type))
9741 #define RETURN_UNALIGNED(type, addr) \
9742 return *(type*)(p + offset);
9743 #define WRITE_UNALIGNED(type, addr, val) \
9744 (*(type *)(addr) = (val))
9748 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9752 MONO_ARCH_SAVE_REGS;
9754 RETURN_UNALIGNED(gpointer, p + offset);
9758 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9762 MONO_ARCH_SAVE_REGS;
9764 return *(unsigned char*)(p + offset);
9768 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9772 MONO_ARCH_SAVE_REGS;
9774 RETURN_UNALIGNED(gint16, p + offset);
9778 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9782 MONO_ARCH_SAVE_REGS;
9784 RETURN_UNALIGNED(gint32, p + offset);
9788 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9792 MONO_ARCH_SAVE_REGS;
9794 RETURN_UNALIGNED(gint64, p + offset);
9798 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9802 MONO_ARCH_SAVE_REGS;
9804 *(unsigned char*)(p + offset) = val;
9808 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9812 MONO_ARCH_SAVE_REGS;
9814 WRITE_UNALIGNED(gpointer, p + offset, val);
9818 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9822 MONO_ARCH_SAVE_REGS;
9824 WRITE_UNALIGNED(gint16, p + offset, val);
9828 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9832 MONO_ARCH_SAVE_REGS;
9834 WRITE_UNALIGNED(gint32, p + offset, val);
9838 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9842 MONO_ARCH_SAVE_REGS;
9844 WRITE_UNALIGNED(gint64, p + offset, val);
9848 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9850 MONO_ARCH_SAVE_REGS;
9855 return mono_string_new (mono_domain_get (), ptr);
9859 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9861 MONO_ARCH_SAVE_REGS;
9864 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9865 g_assert_not_reached ();
9868 return mono_string_new_len (mono_domain_get (), ptr, len);
9873 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9875 MonoDomain *domain = mono_domain_get ();
9879 MONO_ARCH_SAVE_REGS;
9887 return mono_string_new_utf16 (domain, ptr, len);
9891 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9893 MonoDomain *domain = mono_domain_get ();
9895 MONO_ARCH_SAVE_REGS;
9898 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9899 g_assert_not_reached ();
9902 return mono_string_new_utf16 (domain, ptr, len);
9907 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9909 MONO_ARCH_SAVE_REGS;
9911 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9915 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9921 MONO_ARCH_SAVE_REGS;
9923 MONO_CHECK_ARG_NULL (rtype);
9926 klass = mono_class_from_mono_type (type);
9927 if (!mono_class_init (klass))
9928 mono_raise_exception (mono_class_get_exception_for_failure (klass));
9930 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9932 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9936 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9937 exc = mono_get_exception_argument ("t", msg);
9939 mono_raise_exception (exc);
9943 return mono_class_native_size (klass, NULL);
9947 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9952 MONO_ARCH_SAVE_REGS;
9954 MONO_CHECK_ARG_NULL (obj);
9955 MONO_CHECK_ARG_NULL (dst);
9957 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9961 pa [2] = &delete_old;
9963 mono_runtime_invoke (method, NULL, pa, NULL);
9967 ptr_to_structure (gpointer src, MonoObject *dst)
9972 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9977 mono_runtime_invoke (method, NULL, pa, NULL);
9981 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9985 MONO_ARCH_SAVE_REGS;
9987 MONO_CHECK_ARG_NULL (src);
9988 MONO_CHECK_ARG_NULL (dst);
9990 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9992 if (t->type == MONO_TYPE_VALUETYPE) {
9996 tmp = g_strdup_printf ("Destination is a boxed value type.");
9997 exc = mono_get_exception_argument ("dst", tmp);
10000 mono_raise_exception (exc);
10004 ptr_to_structure (src, dst);
10008 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10011 MonoDomain *domain = mono_domain_get ();
10014 MONO_ARCH_SAVE_REGS;
10016 MONO_CHECK_ARG_NULL (src);
10017 MONO_CHECK_ARG_NULL (type);
10019 klass = mono_class_from_mono_type (type->type);
10020 if (!mono_class_init (klass))
10021 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10023 res = mono_object_new (domain, klass);
10025 ptr_to_structure (src, res);
10031 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10033 MonoMarshalType *info;
10036 int match_index = -1;
10038 MONO_ARCH_SAVE_REGS;
10040 MONO_CHECK_ARG_NULL (type);
10041 MONO_CHECK_ARG_NULL (field_name);
10043 fname = mono_string_to_utf8 (field_name);
10044 klass = mono_class_from_mono_type (type->type);
10045 if (!mono_class_init (klass))
10046 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10048 while (klass && match_index == -1) {
10049 MonoClassField* field;
10051 gpointer iter = NULL;
10052 while ((field = mono_class_get_fields (klass, &iter))) {
10053 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10055 if (!strcmp (fname, mono_field_get_name (field))) {
10062 if (match_index == -1)
10063 klass = klass->parent;
10068 if(match_index == -1) {
10069 MonoException* exc;
10072 /* Get back original class instance */
10073 klass = mono_class_from_mono_type (type->type);
10075 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10076 exc = mono_get_exception_argument ("fieldName", tmp);
10079 mono_raise_exception ((MonoException*)exc);
10082 info = mono_marshal_load_type_info (klass);
10083 return info->fields [match_index].offset;
10087 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10092 tres = mono_string_to_utf8 (string);
10096 len = strlen (tres) + 1;
10097 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10098 memcpy (ret, tres, len);
10103 return mono_string_to_utf8 (string);
10108 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10110 MONO_ARCH_SAVE_REGS;
10112 if (string == NULL)
10115 #ifdef TARGET_WIN32
10116 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10117 ((mono_string_length (string) + 1) * 2);
10119 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10121 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10122 res [mono_string_length (string)] = 0;
10128 mono_struct_delete_old (MonoClass *klass, char *ptr)
10130 MonoMarshalType *info;
10133 info = mono_marshal_load_type_info (klass);
10135 for (i = 0; i < info->num_fields; i++) {
10136 MonoMarshalNative ntype;
10137 MonoMarshalConv conv;
10138 MonoType *ftype = info->fields [i].field->type;
10141 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10144 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10145 klass->unicode, &conv);
10147 cpos = ptr + info->fields [i].offset;
10150 case MONO_MARSHAL_CONV_NONE:
10151 if (MONO_TYPE_ISSTRUCT (ftype)) {
10152 mono_struct_delete_old (ftype->data.klass, cpos);
10156 case MONO_MARSHAL_CONV_STR_LPWSTR:
10157 /* We assume this field points inside a MonoString */
10159 case MONO_MARSHAL_CONV_STR_LPTSTR:
10160 #ifdef TARGET_WIN32
10161 /* We assume this field points inside a MonoString
10165 case MONO_MARSHAL_CONV_STR_LPSTR:
10166 case MONO_MARSHAL_CONV_STR_BSTR:
10167 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10168 case MONO_MARSHAL_CONV_STR_TBSTR:
10169 mono_marshal_free (*(gpointer *)cpos);
10179 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10183 MONO_ARCH_SAVE_REGS;
10185 MONO_CHECK_ARG_NULL (src);
10186 MONO_CHECK_ARG_NULL (type);
10188 klass = mono_class_from_mono_type (type->type);
10189 if (!mono_class_init (klass))
10190 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10192 mono_struct_delete_old (klass, (char *)src);
10196 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10200 MONO_ARCH_SAVE_REGS;
10202 if ((gulong)size == 0)
10203 /* This returns a valid pointer for size 0 on MS.NET */
10207 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10209 res = g_try_malloc ((gulong)size);
10212 mono_gc_out_of_memory ((gulong)size);
10218 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10223 mono_gc_out_of_memory ((gulong)size);
10228 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10230 res = g_try_realloc (ptr, (gulong)size);
10233 mono_gc_out_of_memory ((gulong)size);
10239 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10241 MONO_ARCH_SAVE_REGS;
10251 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10253 MONO_ARCH_SAVE_REGS;
10256 return CoTaskMemAlloc (size);
10258 return g_try_malloc ((gulong)size);
10263 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10265 MONO_ARCH_SAVE_REGS;
10268 CoTaskMemFree (ptr);
10275 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10277 MONO_ARCH_SAVE_REGS;
10280 return CoTaskMemRealloc (ptr, size);
10282 return g_try_realloc (ptr, (gulong)size);
10287 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10289 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10293 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10295 MonoClass *klass = mono_type_get_class (type->type);
10296 if (!mono_class_init (klass))
10297 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10299 return mono_ftnptr_to_delegate (klass, ftn);
10303 * mono_marshal_is_loading_type_info:
10305 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10309 mono_marshal_is_loading_type_info (MonoClass *klass)
10311 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10313 return g_slist_find (loads_list, klass) != NULL;
10317 * mono_marshal_load_type_info:
10319 * Initialize klass->marshal_info using information from metadata. This function can
10320 * recursively call itself, and the caller is responsible to avoid that by calling
10321 * mono_marshal_is_loading_type_info () beforehand.
10323 * LOCKING: Acquires the loader lock.
10326 mono_marshal_load_type_info (MonoClass* klass)
10329 guint32 native_size = 0, min_align = 1;
10330 MonoMarshalType *info;
10331 MonoClassField* field;
10334 GSList *loads_list;
10336 g_assert (klass != NULL);
10338 if (klass->marshal_info)
10339 return klass->marshal_info;
10341 if (!klass->inited)
10342 mono_class_init (klass);
10344 mono_loader_lock ();
10346 if (klass->marshal_info) {
10347 mono_loader_unlock ();
10348 return klass->marshal_info;
10352 * This function can recursively call itself, so we keep the list of classes which are
10353 * under initialization in a TLS list.
10355 g_assert (!mono_marshal_is_loading_type_info (klass));
10356 loads_list = TlsGetValue (load_type_info_tls_id);
10357 loads_list = g_slist_prepend (loads_list, klass);
10358 TlsSetValue (load_type_info_tls_id, loads_list);
10361 while ((field = mono_class_get_fields (klass, &iter))) {
10362 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10364 if (mono_field_is_deleted (field))
10369 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10371 /* The mempool is protected by the loader lock */
10372 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10373 info->num_fields = count;
10375 /* Try to find a size for this type in metadata */
10376 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10378 if (klass->parent) {
10379 int parent_size = mono_class_native_size (klass->parent, NULL);
10381 /* Add parent size to real size */
10382 native_size += parent_size;
10383 info->native_size = parent_size;
10388 while ((field = mono_class_get_fields (klass, &iter))) {
10392 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10395 if (mono_field_is_deleted (field))
10397 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10398 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10399 NULL, NULL, &info->fields [j].mspec);
10401 info->fields [j].field = field;
10403 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10404 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10405 /* This field is a hack inserted by MCS to empty structures */
10410 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10411 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10412 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10413 &align, TRUE, klass->unicode);
10414 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10415 min_align = MAX (align, min_align);
10416 info->fields [j].offset = info->native_size;
10417 info->fields [j].offset += align - 1;
10418 info->fields [j].offset &= ~(align - 1);
10419 info->native_size = info->fields [j].offset + size;
10421 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10422 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10423 &align, TRUE, klass->unicode);
10424 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10425 min_align = MAX (align, min_align);
10426 info->fields [j].offset = field->offset - sizeof (MonoObject);
10427 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10433 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10434 info->native_size = MAX (native_size, info->native_size);
10437 if (info->native_size & (min_align - 1)) {
10438 info->native_size += min_align - 1;
10439 info->native_size &= ~(min_align - 1);
10442 info->min_align = min_align;
10444 /* Update the class's blittable info, if the layouts don't match */
10445 if (info->native_size != mono_class_value_size (klass, NULL))
10446 klass->blittable = FALSE;
10448 /* If this is an array type, ensure that we have element info */
10449 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10450 mono_marshal_load_type_info (klass->element_class);
10453 loads_list = TlsGetValue (load_type_info_tls_id);
10454 loads_list = g_slist_remove (loads_list, klass);
10455 TlsSetValue (load_type_info_tls_id, loads_list);
10457 /*We do double-checking locking on marshal_info */
10458 mono_memory_barrier ();
10460 klass->marshal_info = info;
10462 mono_loader_unlock ();
10464 return klass->marshal_info;
10468 * mono_class_native_size:
10471 * Returns: the native size of an object instance (when marshaled
10472 * to unmanaged code)
10475 mono_class_native_size (MonoClass *klass, guint32 *align)
10477 if (!klass->marshal_info) {
10478 if (mono_marshal_is_loading_type_info (klass)) {
10483 mono_marshal_load_type_info (klass);
10488 *align = klass->marshal_info->min_align;
10490 return klass->marshal_info->native_size;
10493 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10494 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10495 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10496 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10499 * mono_type_native_stack_size:
10500 * @t: the type to return the size it uses on the stack
10502 * Returns: the number of bytes required to hold an instance of this
10503 * type on the native stack
10506 mono_type_native_stack_size (MonoType *t, guint32 *align)
10510 g_assert (t != NULL);
10516 *align = sizeof (gpointer);
10517 return sizeof (gpointer);
10521 case MONO_TYPE_BOOLEAN:
10522 case MONO_TYPE_CHAR:
10533 case MONO_TYPE_STRING:
10534 case MONO_TYPE_OBJECT:
10535 case MONO_TYPE_CLASS:
10536 case MONO_TYPE_SZARRAY:
10537 case MONO_TYPE_PTR:
10538 case MONO_TYPE_FNPTR:
10539 case MONO_TYPE_ARRAY:
10540 *align = sizeof (gpointer);
10541 return sizeof (gpointer);
10546 *align = ALIGNMENT (gdouble);
10550 *align = ALIGNMENT (glong);
10552 case MONO_TYPE_GENERICINST:
10553 if (!mono_type_generic_inst_is_valuetype (t)) {
10554 *align = sizeof (gpointer);
10555 return sizeof (gpointer);
10558 case MONO_TYPE_TYPEDBYREF:
10559 case MONO_TYPE_VALUETYPE: {
10561 MonoClass *klass = mono_class_from_mono_type (t);
10563 if (klass->enumtype)
10564 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10566 size = mono_class_native_size (klass, align);
10567 *align = *align + 3;
10577 g_error ("type 0x%02x unknown", t->type);
10583 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10584 gboolean as_field, gboolean unicode)
10586 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10589 switch (native_type) {
10590 case MONO_NATIVE_BOOLEAN:
10593 case MONO_NATIVE_I1:
10594 case MONO_NATIVE_U1:
10597 case MONO_NATIVE_I2:
10598 case MONO_NATIVE_U2:
10599 case MONO_NATIVE_VARIANTBOOL:
10602 case MONO_NATIVE_I4:
10603 case MONO_NATIVE_U4:
10604 case MONO_NATIVE_ERROR:
10607 case MONO_NATIVE_I8:
10608 case MONO_NATIVE_U8:
10609 *align = ALIGNMENT(guint64);
10611 case MONO_NATIVE_R4:
10614 case MONO_NATIVE_R8:
10615 *align = ALIGNMENT(double);
10617 case MONO_NATIVE_INT:
10618 case MONO_NATIVE_UINT:
10619 case MONO_NATIVE_LPSTR:
10620 case MONO_NATIVE_LPWSTR:
10621 case MONO_NATIVE_LPTSTR:
10622 case MONO_NATIVE_BSTR:
10623 case MONO_NATIVE_ANSIBSTR:
10624 case MONO_NATIVE_TBSTR:
10625 case MONO_NATIVE_LPARRAY:
10626 case MONO_NATIVE_SAFEARRAY:
10627 case MONO_NATIVE_IUNKNOWN:
10628 case MONO_NATIVE_IDISPATCH:
10629 case MONO_NATIVE_INTERFACE:
10630 case MONO_NATIVE_ASANY:
10631 case MONO_NATIVE_FUNC:
10632 case MONO_NATIVE_LPSTRUCT:
10633 *align = ALIGNMENT(gpointer);
10634 return sizeof (gpointer);
10635 case MONO_NATIVE_STRUCT:
10636 klass = mono_class_from_mono_type (type);
10637 if (klass == mono_defaults.object_class &&
10638 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10642 return mono_class_native_size (klass, align);
10643 case MONO_NATIVE_BYVALTSTR: {
10644 int esize = unicode ? 2: 1;
10647 return mspec->data.array_data.num_elem * esize;
10649 case MONO_NATIVE_BYVALARRAY: {
10650 // FIXME: Have to consider ArraySubType
10652 klass = mono_class_from_mono_type (type);
10653 if (klass->element_class == mono_defaults.char_class) {
10654 esize = unicode ? 2 : 1;
10657 esize = mono_class_native_size (klass->element_class, align);
10660 return mspec->data.array_data.num_elem * esize;
10662 case MONO_NATIVE_CUSTOM:
10663 *align = sizeof (gpointer);
10664 return sizeof (gpointer);
10666 case MONO_NATIVE_CURRENCY:
10667 case MONO_NATIVE_VBBYREFSTR:
10669 g_error ("native type %02x not implemented", native_type);
10672 g_assert_not_reached ();
10677 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10685 t = &o->vtable->klass->byval_arg;
10689 case MONO_TYPE_PTR:
10692 case MONO_TYPE_BOOLEAN:
10695 case MONO_TYPE_CHAR:
10700 return mono_object_unbox (o);
10702 case MONO_TYPE_STRING:
10703 switch (string_encoding) {
10704 case MONO_NATIVE_LPWSTR:
10705 return mono_string_to_utf16 ((MonoString*)o);
10707 case MONO_NATIVE_LPSTR:
10708 return mono_string_to_lpstr ((MonoString*)o);
10711 g_warning ("marshaling conversion %d not implemented", string_encoding);
10712 g_assert_not_reached ();
10715 case MONO_TYPE_CLASS:
10716 case MONO_TYPE_VALUETYPE: {
10717 MonoMethod *method;
10720 MonoBoolean delete_old = FALSE;
10722 klass = t->data.klass;
10724 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10727 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10728 klass->blittable || klass->enumtype))
10729 return mono_object_unbox (o);
10731 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10733 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10734 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10738 pa [2] = &delete_old;
10740 mono_runtime_invoke (method, NULL, pa, NULL);
10747 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10753 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10761 t = &o->vtable->klass->byval_arg;
10763 case MONO_TYPE_STRING:
10764 switch (string_encoding) {
10765 case MONO_NATIVE_LPWSTR:
10766 case MONO_NATIVE_LPSTR:
10767 mono_marshal_free (ptr);
10770 g_warning ("marshaling conversion %d not implemented", string_encoding);
10771 g_assert_not_reached ();
10774 case MONO_TYPE_CLASS:
10775 case MONO_TYPE_VALUETYPE: {
10776 klass = t->data.klass;
10778 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10779 klass->blittable || klass->enumtype))
10782 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10783 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10789 mono_runtime_invoke (method, NULL, pa, NULL);
10792 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10793 mono_struct_delete_old (klass, ptr);
10796 mono_marshal_free (ptr);
10805 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10807 MonoMethodSignature *sig, *csig;
10808 MonoMethodBuilder *mb;
10812 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10813 mb->method->slot = -1;
10815 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10816 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10818 sig = mono_method_signature (method);
10819 csig = signature_dup (method->klass->image, sig);
10820 csig->generic_param_count = 0;
10822 mono_mb_emit_ldarg (mb, 0);
10823 for (i = 0; i < csig->param_count; i++)
10824 mono_mb_emit_ldarg (mb, i + 1);
10825 mono_mb_emit_managed_call (mb, method, NULL);
10826 mono_mb_emit_byte (mb, CEE_RET);
10828 /* We can corlib internal methods */
10829 mb->skip_visibility = TRUE;
10831 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10839 * The mono_win32_compat_* functions are implementations of inline
10840 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10841 * although not exported by kernel32.
10843 * We map the appropiate kernel32 entries to these functions using
10844 * dllmaps declared in the global etc/mono/config.
10848 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10850 if (!dest || !source)
10853 memcpy (dest, source, length);
10857 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10859 memset (dest, fill, length);
10863 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10865 if (!dest || !source)
10868 memmove (dest, source, length);
10872 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10874 memset (dest, 0, length);
10878 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10883 for (i = 0; i < len; ++i)
10887 g_assert (i < len);
10890 while (byte && !(byte & 1))
10892 g_assert (byte == 1);
10895 *bitmask = buf [i];
10899 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10901 MonoMethodBuilder *mb;
10902 MonoMethodSignature *sig, *csig;
10903 MonoExceptionClause *clause;
10908 int i, param_count, sig_size, pos_leave;
10912 klass = method->klass;
10913 image = method->klass->image;
10914 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10916 if ((res = mono_marshal_find_in_cache (cache, method)))
10919 sig = mono_method_signature (method);
10920 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10922 /* add "this" and exception param */
10923 param_count = sig->param_count + sig->hasthis + 1;
10925 /* dup & extend signature */
10926 csig = mono_metadata_signature_alloc (image, param_count);
10927 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10928 memcpy (csig, sig, sig_size);
10929 csig->param_count = param_count;
10932 csig->call_convention = MONO_CALL_DEFAULT;
10934 if (sig->hasthis) {
10936 csig->params [0] = &klass->byval_arg;
10937 /* move params up by one */
10938 for (i = 0; i < sig->param_count; i++)
10939 csig->params [i + 1] = sig->params [i];
10942 /* setup exception param as byref+[out] */
10943 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10944 &mono_defaults.exception_class->byval_arg);
10945 csig->params [param_count - 1]->byref = 1;
10946 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10948 /* convert struct return to object */
10949 if (MONO_TYPE_ISSTRUCT (sig->ret))
10950 csig->ret = &mono_defaults.object_class->byval_arg;
10952 /* local 0 (temp for exception object) */
10953 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10955 /* local 1 (temp for result) */
10956 if (!MONO_TYPE_IS_VOID (sig->ret))
10957 mono_mb_add_local (mb, sig->ret);
10959 /* clear exception arg */
10960 mono_mb_emit_ldarg (mb, param_count - 1);
10961 mono_mb_emit_byte (mb, CEE_LDNULL);
10962 mono_mb_emit_byte (mb, CEE_STIND_REF);
10965 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10966 clause->try_offset = mono_mb_get_label (mb);
10968 /* push method's args */
10969 for (i = 0; i < param_count - 1; i++) {
10973 mono_mb_emit_ldarg (mb, i);
10975 /* get the byval type of the param */
10976 klass = mono_class_from_mono_type (csig->params [i]);
10977 type = &klass->byval_arg;
10979 /* unbox struct args */
10980 if (MONO_TYPE_ISSTRUCT (type)) {
10981 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10983 /* byref args & and the "this" arg must remain a ptr.
10984 Otherwise make a copy of the value type */
10985 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10986 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10988 csig->params [i] = &mono_defaults.object_class->byval_arg;
10993 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10994 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10996 mono_mb_emit_op (mb, CEE_CALL, method);
10998 /* save result at local 1 */
10999 if (!MONO_TYPE_IS_VOID (sig->ret))
11000 mono_mb_emit_stloc (mb, 1);
11002 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11005 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11006 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11007 clause->data.catch_class = mono_defaults.object_class;
11009 clause->handler_offset = mono_mb_get_label (mb);
11011 /* store exception at local 0 */
11012 mono_mb_emit_stloc (mb, 0);
11013 mono_mb_emit_ldarg (mb, param_count - 1);
11014 mono_mb_emit_ldloc (mb, 0);
11015 mono_mb_emit_byte (mb, CEE_STIND_REF);
11016 mono_mb_emit_branch (mb, CEE_LEAVE);
11018 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11020 mono_mb_set_clauses (mb, 1, clause);
11022 mono_mb_patch_branch (mb, pos_leave);
11025 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11026 mono_mb_emit_ldloc (mb, 1);
11028 /* box the return value */
11029 if (MONO_TYPE_ISSTRUCT (sig->ret))
11030 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11033 mono_mb_emit_byte (mb, CEE_RET);
11035 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11042 * mono_marshal_free_dynamic_wrappers:
11044 * Free wrappers of the dynamic method METHOD.
11047 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11049 g_assert (method->dynamic);
11051 /* This could be called during shutdown */
11052 if (marshal_mutex_initialized)
11053 mono_marshal_lock ();
11055 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11056 * they could be shared with other methods ?
11058 if (method->klass->image->runtime_invoke_direct_cache)
11059 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11060 if (marshal_mutex_initialized)
11061 mono_marshal_unlock ();
11065 * mono_marshal_free_inflated_wrappers:
11067 * Free wrappers of the inflated method METHOD.
11071 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11073 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11074 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11076 return mono_metadata_signature_equal (pair->sig, sig);
11080 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11082 MonoMethodSignature *sig = method->signature;
11084 g_assert (method->is_inflated);
11086 /* Ignore calls occuring late during cleanup. */
11087 if (!marshal_mutex_initialized)
11090 mono_marshal_lock ();
11092 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11093 * they could be shared with other methods ?
11097 * indexed by MonoMethodSignature
11099 /* FIXME: This could remove unrelated wrappers as well */
11100 if (sig && method->klass->image->delegate_begin_invoke_cache)
11101 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11102 if (sig && method->klass->image->delegate_end_invoke_cache)
11103 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11104 if (sig && method->klass->image->delegate_invoke_cache)
11105 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11106 if (sig && method->klass->image->runtime_invoke_cache)
11107 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11110 * indexed by SignatureMethodPair
11112 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11113 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11114 signature_method_pair_matches_signature, (gpointer)sig);
11117 * indexed by MonoMethod pointers
11119 if (method->klass->image->runtime_invoke_direct_cache)
11120 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11121 if (method->klass->image->managed_wrapper_cache)
11122 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11123 if (method->klass->image->native_wrapper_cache)
11124 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11125 if (method->klass->image->remoting_invoke_cache)
11126 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11127 if (method->klass->image->synchronized_cache)
11128 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11129 if (method->klass->image->unbox_wrapper_cache)
11130 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11131 if (method->klass->image->cominterop_invoke_cache)
11132 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11133 if (method->klass->image->cominterop_wrapper_cache)
11134 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11135 if (method->klass->image->thunk_invoke_cache)
11136 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11138 mono_marshal_unlock ();