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, MonoObject **target_loc);
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);
249 mono_cominterop_init ();
254 mono_marshal_cleanup (void)
256 mono_cominterop_cleanup ();
258 TlsFree (load_type_info_tls_id);
259 TlsFree (last_error_tls_id);
260 DeleteCriticalSection (&marshal_mutex);
261 marshal_mutex_initialized = FALSE;
264 MonoClass *byte_array_class;
265 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
266 static MonoMethod *method_set_context, *method_get_context;
267 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
270 mono_remoting_marshal_init (void)
274 static gboolean module_initialized = FALSE;
276 if (!module_initialized) {
277 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
278 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
279 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
280 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
282 klass = mono_defaults.real_proxy_class;
283 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
285 klass = mono_defaults.exception_class;
286 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
288 klass = mono_defaults.thread_class;
289 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
291 klass = mono_defaults.appdomain_class;
292 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
293 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
295 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
296 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
298 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
299 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
301 module_initialized = TRUE;
306 mono_delegate_to_ftnptr (MonoDelegate *delegate)
308 MonoMethod *method, *wrapper;
310 MonoObject **target_loc;
315 if (delegate->delegate_trampoline)
316 return delegate->delegate_trampoline;
318 klass = ((MonoObject *)delegate)->vtable->klass;
319 g_assert (klass->delegate);
321 method = delegate->method;
323 if (mono_method_signature (method)->pinvoke) {
324 const char *exc_class, *exc_arg;
327 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
329 g_assert (exc_class);
330 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
335 if (delegate->target) {
336 /* Produce a location which can be embedded in JITted code */
337 target_loc = mono_gc_alloc_fixed (sizeof (MonoObject*), NULL);
338 *target_loc = delegate->target;
343 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_loc);
345 delegate->delegate_trampoline = mono_compile_method (wrapper);
347 // Add the delegate to the delegate hash table
348 delegate_hash_table_add (delegate, target_loc);
350 /* when the object is collected, collect the dynamic method, too */
351 mono_object_register_finalizer ((MonoObject*)delegate);
353 return delegate->delegate_trampoline;
357 * this hash table maps from a delegate trampoline object to a weak reference
358 * of the delegate. As an optimizations with a non-moving GC we store the
359 * object pointer itself, otherwise we use a GC handle.
361 static GHashTable *delegate_hash_table;
362 /* Contains root locations pointing to the this arguments of delegates */
363 static MonoGHashTable *delegate_target_locations;
366 delegate_hash_table_new (void) {
367 return g_hash_table_new (NULL, NULL);
371 delegate_hash_table_remove (MonoDelegate *d)
373 MonoObject **target_loc;
374 #ifdef HAVE_MOVING_COLLECTOR
377 mono_marshal_lock ();
378 if (delegate_hash_table == NULL)
379 delegate_hash_table = delegate_hash_table_new ();
380 #ifdef HAVE_MOVING_COLLECTOR
381 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
383 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
384 if (delegate_target_locations)
385 target_loc = mono_g_hash_table_lookup (delegate_target_locations, d->delegate_trampoline);
389 mono_g_hash_table_remove (delegate_target_locations, d->delegate_trampoline);
390 mono_marshal_unlock ();
392 mono_gc_free_fixed (target_loc);
394 #ifdef HAVE_MOVING_COLLECTOR
395 mono_gchandle_free (gchandle);
400 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc)
402 #ifdef HAVE_MOVING_COLLECTOR
403 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
404 guint32 old_gchandle;
406 mono_marshal_lock ();
407 if (delegate_hash_table == NULL)
408 delegate_hash_table = delegate_hash_table_new ();
409 if (delegate_target_locations == NULL) {
410 /* Has to be conservative as the values are not object references */
411 delegate_target_locations = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_CONSERVATIVE_GC);
412 MONO_GC_REGISTER_ROOT (delegate_target_locations);
414 #ifdef HAVE_MOVING_COLLECTOR
415 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
416 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
418 mono_gchandle_free (old_gchandle);
420 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
423 /* This keeps target_loc alive for Boehm */
424 mono_g_hash_table_insert (delegate_target_locations, d->delegate_trampoline, target_loc);
425 mono_marshal_unlock ();
429 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
431 #ifdef HAVE_MOVING_COLLECTOR
439 mono_marshal_lock ();
440 if (delegate_hash_table == NULL)
441 delegate_hash_table = delegate_hash_table_new ();
443 #ifdef HAVE_MOVING_COLLECTOR
444 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
445 mono_marshal_unlock ();
447 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
451 d = g_hash_table_lookup (delegate_hash_table, ftn);
452 mono_marshal_unlock ();
455 /* This is a native function, so construct a delegate for it */
456 static MonoClass *UnmanagedFunctionPointerAttribute;
457 MonoMethodSignature *sig;
459 MonoMarshalSpec **mspecs;
460 MonoCustomAttrInfo *cinfo;
461 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
462 MonoMethod *invoke = mono_get_delegate_invoke (klass);
463 MonoMethodPInvoke piinfo;
466 memset (&piinfo, 0, sizeof (piinfo));
467 if (!UnmanagedFunctionPointerAttribute)
468 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
470 /* The attribute is only available in Net 2.0 */
471 if (UnmanagedFunctionPointerAttribute) {
473 * The pinvoke attributes are stored in a real custom attribute so we have to
476 cinfo = mono_custom_attrs_from_class (klass);
478 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
480 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
483 mono_custom_attrs_free (cinfo);
487 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
488 mono_method_get_marshal_info (invoke, mspecs);
489 /* Freed below so don't alloc from mempool */
490 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
493 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
495 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
497 mono_metadata_free_marshal_spec (mspecs [i]);
501 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
502 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
505 if (d->object.vtable->domain != mono_domain_get ())
506 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
512 mono_delegate_free_ftnptr (MonoDelegate *delegate)
517 delegate_hash_table_remove (delegate);
519 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
521 if (!delegate->target) {
522 /* The wrapper method is shared between delegates -> no need to free it */
527 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
530 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
535 mono_array_to_savearray (MonoArray *array)
540 g_assert_not_reached ();
545 mono_array_to_lparray (MonoArray *array)
547 gpointer *nativeArray = NULL;
548 int nativeArraySize = 0;
557 klass = array->obj.vtable->klass;
559 switch (klass->element_class->byval_arg.type) {
561 g_assert_not_reached ();
564 case MONO_TYPE_CLASS:
565 nativeArraySize = array->max_length;
566 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
567 for(i = 0; i < nativeArraySize; ++i)
568 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
572 case MONO_TYPE_BOOLEAN:
585 case MONO_TYPE_VALUETYPE:
588 case MONO_TYPE_GENERICINST:
590 case MONO_TYPE_OBJECT:
591 case MONO_TYPE_ARRAY:
592 case MONO_TYPE_SZARRAY:
593 case MONO_TYPE_STRING:
595 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
596 g_assert_not_reached ();
599 return array->vector;
603 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
614 klass = array->obj.vtable->klass;
616 switch (klass->element_class->byval_arg.type) {
617 case MONO_TYPE_CLASS:
618 for(i = 0; i < array->max_length; ++i)
619 mono_marshal_free_ccw(nativeArray[i]);
627 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
629 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
631 if (elclass == mono_defaults.byte_class) {
632 GError *error = NULL;
636 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
639 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
643 g_error_free (error);
646 g_assert_not_reached ();
650 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
652 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
654 if (elclass == mono_defaults.byte_class) {
656 GError *error = NULL;
658 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
660 MonoException *exc = mono_get_exception_argument ("string", error->message);
661 g_error_free (error);
662 mono_raise_exception (exc);
665 memcpy (native_arr, as, MIN (strlen (as), elnum));
668 g_assert_not_reached ();
673 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
675 GError *error = NULL;
685 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
687 if (items_written > mono_stringbuilder_capacity (sb))
688 items_written = mono_stringbuilder_capacity (sb);
691 if (! sb->str || sb->str == sb->cached_str) {
692 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
693 sb->cached_str = NULL;
696 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
697 sb->length = items_written;
699 g_error_free (error);
705 mono_string_utf8_to_builder2 (char *text)
708 MonoStringBuilder *sb;
709 static MonoClass *string_builder_class;
710 static MonoMethod *sb_ctor;
717 if (!string_builder_class) {
718 MonoMethodDesc *desc;
720 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
721 g_assert (string_builder_class);
722 desc = mono_method_desc_new (":.ctor(int)", FALSE);
723 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
725 mono_method_desc_free (desc);
730 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
733 mono_runtime_invoke (sb_ctor, sb, args, &exc);
736 mono_string_utf8_to_builder (sb, text);
742 * FIXME: This routine does not seem to do what it seems to do
743 * the @text is never copied into the string builder
746 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
753 g_assert (mono_string_chars (sb->str) == text);
755 for (len = 0; text [len] != 0; ++len)
762 mono_string_utf16_to_builder2 (gunichar2 *text)
765 MonoStringBuilder *sb;
766 static MonoClass *string_builder_class;
767 static MonoMethod *sb_ctor;
774 if (!string_builder_class) {
775 MonoMethodDesc *desc;
777 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
778 g_assert (string_builder_class);
779 desc = mono_method_desc_new (":.ctor(int)", FALSE);
780 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
782 mono_method_desc_free (desc);
785 for (len = 0; text [len] != 0; ++len)
788 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
791 mono_runtime_invoke (sb_ctor, sb, args, &exc);
795 memcpy (mono_string_chars (sb->str), text, len * 2);
801 * mono_string_builder_to_utf8:
802 * @sb: the string builder
804 * Converts to utf8 the contents of the MonoStringBuilder.
806 * Returns: a utf8 string with the contents of the StringBuilder.
808 * The return value must be released with g_free.
811 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
813 GError *error = NULL;
814 gchar *tmp, *res = NULL;
819 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
821 * The sb could have been allocated with the default capacity and be empty.
822 * we need to alloc a buffer of the default capacity in this case.
824 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
825 sb->cached_str = NULL;
828 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
830 g_error_free (error);
831 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
833 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
834 memcpy (res, tmp, sb->length + 1);
842 * mono_string_builder_to_utf16:
843 * @sb: the string builder
845 * Converts to utf16 the contents of the MonoStringBuilder.
847 * Returns: a utf16 string with the contents of the StringBuilder.
849 * The return value must not be freed.
852 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
860 * The stringbuilder might not have ownership of this string. If this is
861 * the case, we must duplicate the string, so that we don't munge immutable
864 if (sb->str == sb->cached_str) {
866 * The sb could have been allocated with the default capacity and be empty.
867 * we need to alloc a buffer of the default capacity in this case.
869 if (sb->str->length == 0)
870 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
872 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
873 sb->cached_str = NULL;
877 *(mono_string_chars (sb->str)) = '\0';
879 return mono_string_chars (sb->str);
883 mono_string_to_lpstr (MonoString *s)
888 GError *error = NULL;
894 as = CoTaskMemAlloc (1);
899 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
901 MonoException *exc = mono_get_exception_argument ("string", error->message);
902 g_error_free (error);
903 mono_raise_exception(exc);
906 as = CoTaskMemAlloc (len + 1);
907 memcpy (as, tmp, len + 1);
912 return mono_string_to_utf8 (s);
917 mono_string_to_ansibstr (MonoString *string_obj)
919 g_error ("UnmanagedMarshal.BStr is not implemented.");
924 * mono_string_to_byvalstr:
925 * @dst: Where to store the null-terminated utf8 decoded string.
926 * @src: the MonoString to copy.
927 * @size: the maximum number of bytes to copy.
929 * Copies the MonoString pointed to by @src as a utf8 string
930 * into @dst, it copies at most @size bytes into the destination.
933 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
938 g_assert (dst != NULL);
941 memset (dst, 0, size);
945 s = mono_string_to_utf8 (src);
946 len = MIN (size, strlen (s));
949 memcpy (dst, s, len);
954 * mono_string_to_byvalwstr:
955 * @dst: Where to store the null-terminated utf16 decoded string.
956 * @src: the MonoString to copy.
957 * @size: the maximum number of bytes to copy.
959 * Copies the MonoString pointed to by @src as a utf16 string into
960 * @dst, it copies at most @size bytes into the destination (including
961 * a terminating 16-bit zero terminator).
964 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
968 g_assert (dst != NULL);
972 memset (dst, 0, size * 2);
976 len = MIN (size, (mono_string_length (src)));
977 memcpy (dst, mono_string_chars (src), size * 2);
978 if (size <= mono_string_length (src))
980 *((gunichar2 *) dst + len) = 0;
984 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
987 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
988 mono_mb_emit_byte (mb, CEE_LDIND_I);
989 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
990 mono_mb_emit_byte (mb, CEE_ADD);
991 mono_mb_emit_byte (mb, CEE_LDIND_I);
992 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
993 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
994 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
995 pos = mono_mb_emit_branch (mb, branch_code);
1000 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1003 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1004 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1005 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1006 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1007 mono_mb_emit_icon (mb, -1);
1008 pos = mono_mb_emit_branch (mb, branch_code);
1013 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1015 static int offset = -1;
1019 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1021 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1022 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1023 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1024 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1025 mono_mb_emit_ldflda (mb, offset);
1026 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1027 mono_mb_emit_icon (mb, mask);
1028 mono_mb_emit_byte (mb, CEE_AND);
1029 mono_mb_emit_icon (mb, 0);
1030 return mono_mb_emit_branch (mb, branch_code);
1034 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1036 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1040 mono_type_to_ldind (MonoType *type)
1046 switch (type->type) {
1048 return CEE_LDIND_I1;
1050 case MONO_TYPE_BOOLEAN:
1051 return CEE_LDIND_U1;
1053 return CEE_LDIND_I2;
1055 case MONO_TYPE_CHAR:
1056 return CEE_LDIND_U2;
1058 return CEE_LDIND_I4;
1060 return CEE_LDIND_U4;
1064 case MONO_TYPE_FNPTR:
1066 case MONO_TYPE_CLASS:
1067 case MONO_TYPE_STRING:
1068 case MONO_TYPE_OBJECT:
1069 case MONO_TYPE_SZARRAY:
1070 case MONO_TYPE_ARRAY:
1071 return CEE_LDIND_REF;
1074 return CEE_LDIND_I8;
1076 return CEE_LDIND_R4;
1078 return CEE_LDIND_R8;
1079 case MONO_TYPE_VALUETYPE:
1080 if (type->data.klass->enumtype) {
1081 type = mono_class_enum_basetype (type->data.klass);
1085 case MONO_TYPE_TYPEDBYREF:
1087 case MONO_TYPE_GENERICINST:
1088 type = &type->data.generic_class->container_class->byval_arg;
1091 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1097 mono_type_to_stind (MonoType *type)
1103 switch (type->type) {
1106 case MONO_TYPE_BOOLEAN:
1107 return CEE_STIND_I1;
1110 case MONO_TYPE_CHAR:
1111 return CEE_STIND_I2;
1114 return CEE_STIND_I4;
1118 case MONO_TYPE_FNPTR:
1120 case MONO_TYPE_CLASS:
1121 case MONO_TYPE_STRING:
1122 case MONO_TYPE_OBJECT:
1123 case MONO_TYPE_SZARRAY:
1124 case MONO_TYPE_ARRAY:
1125 return CEE_STIND_REF;
1128 return CEE_STIND_I8;
1130 return CEE_STIND_R4;
1132 return CEE_STIND_R8;
1133 case MONO_TYPE_VALUETYPE:
1134 if (type->data.klass->enumtype) {
1135 type = mono_class_enum_basetype (type->data.klass);
1139 case MONO_TYPE_TYPEDBYREF:
1141 case MONO_TYPE_GENERICINST:
1142 type = &type->data.generic_class->container_class->byval_arg;
1145 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1151 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1154 case MONO_MARSHAL_CONV_BOOL_I4:
1155 mono_mb_emit_ldloc (mb, 1);
1156 mono_mb_emit_ldloc (mb, 0);
1157 mono_mb_emit_byte (mb, CEE_LDIND_I4);
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_BOOL_VARIANTBOOL:
1167 mono_mb_emit_ldloc (mb, 1);
1168 mono_mb_emit_ldloc (mb, 0);
1169 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1170 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1171 mono_mb_emit_byte (mb, 3);
1172 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1173 mono_mb_emit_byte (mb, CEE_BR_S);
1174 mono_mb_emit_byte (mb, 1);
1175 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1176 mono_mb_emit_byte (mb, CEE_STIND_I1);
1178 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1179 MonoClass *eklass = NULL;
1182 if (type->type == MONO_TYPE_SZARRAY) {
1183 eklass = type->data.klass;
1185 g_assert_not_reached ();
1188 esize = mono_class_native_size (eklass, NULL);
1190 /* create a new array */
1191 mono_mb_emit_ldloc (mb, 1);
1192 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1193 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1194 mono_mb_emit_byte (mb, CEE_STIND_I);
1196 if (eklass->blittable) {
1197 /* copy the elements */
1198 mono_mb_emit_ldloc (mb, 1);
1199 mono_mb_emit_byte (mb, CEE_LDIND_I);
1200 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1201 mono_mb_emit_byte (mb, CEE_ADD);
1202 mono_mb_emit_ldloc (mb, 0);
1203 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1204 mono_mb_emit_byte (mb, CEE_PREFIX1);
1205 mono_mb_emit_byte (mb, CEE_CPBLK);
1208 int array_var, src_var, dst_var, index_var;
1209 guint32 label2, label3;
1211 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1212 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1213 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1216 mono_mb_emit_ldloc (mb, 1);
1217 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1218 mono_mb_emit_stloc (mb, array_var);
1220 /* save the old src pointer */
1221 mono_mb_emit_ldloc (mb, 0);
1222 mono_mb_emit_stloc (mb, src_var);
1223 /* save the old dst pointer */
1224 mono_mb_emit_ldloc (mb, 1);
1225 mono_mb_emit_stloc (mb, dst_var);
1227 /* Emit marshalling loop */
1228 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1229 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1230 mono_mb_emit_stloc (mb, index_var);
1233 label2 = mono_mb_get_label (mb);
1234 mono_mb_emit_ldloc (mb, index_var);
1235 mono_mb_emit_ldloc (mb, array_var);
1236 mono_mb_emit_byte (mb, CEE_LDLEN);
1237 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1239 /* src is already set */
1242 mono_mb_emit_ldloc (mb, array_var);
1243 mono_mb_emit_ldloc (mb, index_var);
1244 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1245 mono_mb_emit_stloc (mb, 1);
1247 /* Do the conversion */
1248 emit_struct_conv (mb, eklass, TRUE);
1251 mono_mb_emit_add_to_local (mb, index_var, 1);
1253 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1255 mono_mb_patch_branch (mb, label3);
1257 /* restore the old src pointer */
1258 mono_mb_emit_ldloc (mb, src_var);
1259 mono_mb_emit_stloc (mb, 0);
1260 /* restore the old dst pointer */
1261 mono_mb_emit_ldloc (mb, dst_var);
1262 mono_mb_emit_stloc (mb, 1);
1266 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1267 MonoClass *eclass = mono_defaults.char_class;
1269 /* create a new array */
1270 mono_mb_emit_ldloc (mb, 1);
1271 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1272 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1273 mono_mb_emit_byte (mb, CEE_STIND_REF);
1275 mono_mb_emit_ldloc (mb, 1);
1276 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1277 mono_mb_emit_ldloc (mb, 0);
1278 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1279 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1280 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1283 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1284 mono_mb_emit_ldloc (mb, 1);
1285 mono_mb_emit_ldloc (mb, 0);
1286 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1287 mono_mb_emit_byte (mb, CEE_STIND_REF);
1289 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1290 mono_mb_emit_ldloc (mb, 1);
1291 mono_mb_emit_ldloc (mb, 0);
1292 mono_mb_emit_icall (mb, mono_string_from_utf16);
1293 mono_mb_emit_byte (mb, CEE_STIND_REF);
1295 case MONO_MARSHAL_CONV_STR_LPTSTR:
1296 mono_mb_emit_ldloc (mb, 1);
1297 mono_mb_emit_ldloc (mb, 0);
1298 mono_mb_emit_byte (mb, CEE_LDIND_I);
1300 mono_mb_emit_icall (mb, mono_string_from_utf16);
1302 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1304 mono_mb_emit_byte (mb, CEE_STIND_REF);
1306 case MONO_MARSHAL_CONV_STR_LPSTR:
1307 mono_mb_emit_ldloc (mb, 1);
1308 mono_mb_emit_ldloc (mb, 0);
1309 mono_mb_emit_byte (mb, CEE_LDIND_I);
1310 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1311 mono_mb_emit_byte (mb, CEE_STIND_REF);
1313 case MONO_MARSHAL_CONV_STR_LPWSTR:
1314 mono_mb_emit_ldloc (mb, 1);
1315 mono_mb_emit_ldloc (mb, 0);
1316 mono_mb_emit_byte (mb, CEE_LDIND_I);
1317 mono_mb_emit_icall (mb, mono_string_from_utf16);
1318 mono_mb_emit_byte (mb, CEE_STIND_REF);
1320 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1321 MonoClass *klass = mono_class_from_mono_type (type);
1322 int src_var, dst_var;
1324 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1325 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1327 /* *dst = new object */
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1330 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1331 mono_mb_emit_byte (mb, CEE_STIND_REF);
1333 /* save the old src pointer */
1334 mono_mb_emit_ldloc (mb, 0);
1335 mono_mb_emit_stloc (mb, src_var);
1336 /* save the old dst pointer */
1337 mono_mb_emit_ldloc (mb, 1);
1338 mono_mb_emit_stloc (mb, dst_var);
1340 /* dst = pointer to newly created object data */
1341 mono_mb_emit_ldloc (mb, 1);
1342 mono_mb_emit_byte (mb, CEE_LDIND_I);
1343 mono_mb_emit_icon (mb, sizeof (MonoObject));
1344 mono_mb_emit_byte (mb, CEE_ADD);
1345 mono_mb_emit_stloc (mb, 1);
1347 emit_struct_conv (mb, klass, TRUE);
1349 /* restore the old src pointer */
1350 mono_mb_emit_ldloc (mb, src_var);
1351 mono_mb_emit_stloc (mb, 0);
1352 /* restore the old dst pointer */
1353 mono_mb_emit_ldloc (mb, dst_var);
1354 mono_mb_emit_stloc (mb, 1);
1357 case MONO_MARSHAL_CONV_DEL_FTN: {
1358 MonoClass *klass = mono_class_from_mono_type (type);
1360 mono_mb_emit_ldloc (mb, 1);
1361 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1362 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1363 mono_mb_emit_ldloc (mb, 0);
1364 mono_mb_emit_byte (mb, CEE_LDIND_I);
1365 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1366 mono_mb_emit_byte (mb, CEE_STIND_REF);
1369 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1370 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1374 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1375 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1376 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1377 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1379 #endif /* DISABLE_COM */
1381 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1383 * Passing SafeHandles as ref does not allow the unmanaged code
1384 * to change the SafeHandle value. If the value is changed,
1385 * we should issue a diagnostic exception (NotSupportedException)
1386 * that informs the user that changes to handles in unmanaged code
1389 * Since we currently have no access to the original
1390 * SafeHandle that was used during the marshalling,
1391 * for now we just ignore this, and ignore/discard any
1392 * changes that might have happened to the handle.
1397 case MONO_MARSHAL_CONV_HANDLEREF: {
1399 * Passing HandleRefs in a struct that is ref()ed does not
1400 * copy the values back to the HandleRef
1405 case MONO_MARSHAL_CONV_STR_BSTR:
1406 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1407 case MONO_MARSHAL_CONV_STR_TBSTR:
1408 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1410 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1412 mono_mb_emit_exception_marshal_directive (mb, msg);
1420 conv_to_icall (MonoMarshalConv conv)
1423 case MONO_MARSHAL_CONV_STR_LPWSTR:
1424 return mono_marshal_string_to_utf16;
1425 case MONO_MARSHAL_CONV_LPWSTR_STR:
1426 return mono_string_from_utf16;
1427 case MONO_MARSHAL_CONV_LPSTR_STR:
1428 return mono_string_new_wrapper;
1429 case MONO_MARSHAL_CONV_STR_LPTSTR:
1431 return mono_marshal_string_to_utf16;
1433 return mono_string_to_lpstr;
1435 case MONO_MARSHAL_CONV_STR_LPSTR:
1436 return mono_string_to_lpstr;
1437 case MONO_MARSHAL_CONV_STR_BSTR:
1438 return mono_string_to_bstr;
1439 case MONO_MARSHAL_CONV_BSTR_STR:
1440 return mono_string_from_bstr;
1441 case MONO_MARSHAL_CONV_STR_TBSTR:
1442 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1443 return mono_string_to_ansibstr;
1444 case MONO_MARSHAL_CONV_SB_LPSTR:
1445 return mono_string_builder_to_utf8;
1446 case MONO_MARSHAL_CONV_SB_LPTSTR:
1448 return mono_string_builder_to_utf16;
1450 return mono_string_builder_to_utf8;
1452 case MONO_MARSHAL_CONV_SB_LPWSTR:
1453 return mono_string_builder_to_utf16;
1454 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1455 return mono_array_to_savearray;
1456 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1457 return mono_array_to_lparray;
1458 case MONO_MARSHAL_FREE_LPARRAY:
1459 return mono_free_lparray;
1460 case MONO_MARSHAL_CONV_DEL_FTN:
1461 return mono_delegate_to_ftnptr;
1462 case MONO_MARSHAL_CONV_FTN_DEL:
1463 return mono_ftnptr_to_delegate;
1464 case MONO_MARSHAL_CONV_LPSTR_SB:
1465 return mono_string_utf8_to_builder;
1466 case MONO_MARSHAL_CONV_LPTSTR_SB:
1468 return mono_string_utf16_to_builder;
1470 return mono_string_utf8_to_builder;
1472 case MONO_MARSHAL_CONV_LPWSTR_SB:
1473 return mono_string_utf16_to_builder;
1474 case MONO_MARSHAL_FREE_ARRAY:
1475 return mono_marshal_free_array;
1476 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1477 return mono_string_to_byvalstr;
1478 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1479 return mono_string_to_byvalwstr;
1481 g_assert_not_reached ();
1488 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1493 case MONO_MARSHAL_CONV_BOOL_I4:
1494 mono_mb_emit_ldloc (mb, 1);
1495 mono_mb_emit_ldloc (mb, 0);
1496 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1497 mono_mb_emit_byte (mb, CEE_STIND_I4);
1499 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1500 mono_mb_emit_ldloc (mb, 1);
1501 mono_mb_emit_ldloc (mb, 0);
1502 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1503 mono_mb_emit_byte (mb, CEE_NEG);
1504 mono_mb_emit_byte (mb, CEE_STIND_I2);
1506 case MONO_MARSHAL_CONV_STR_LPWSTR:
1507 case MONO_MARSHAL_CONV_STR_LPSTR:
1508 case MONO_MARSHAL_CONV_STR_LPTSTR:
1509 case MONO_MARSHAL_CONV_STR_BSTR:
1510 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1511 case MONO_MARSHAL_CONV_STR_TBSTR: {
1514 /* free space if free == true */
1515 mono_mb_emit_ldloc (mb, 2);
1516 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_byte (mb, CEE_LDIND_I);
1519 mono_mb_emit_icall (mb, g_free);
1520 mono_mb_patch_short_branch (mb, pos);
1522 mono_mb_emit_ldloc (mb, 1);
1523 mono_mb_emit_ldloc (mb, 0);
1524 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1525 mono_mb_emit_icall (mb, conv_to_icall (conv));
1526 mono_mb_emit_byte (mb, CEE_STIND_I);
1529 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1530 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1531 case MONO_MARSHAL_CONV_DEL_FTN:
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_ldloc (mb, 0);
1534 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1535 mono_mb_emit_icall (mb, conv_to_icall (conv));
1536 mono_mb_emit_byte (mb, CEE_STIND_I);
1538 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1539 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1542 mono_mb_emit_ldloc (mb, 1); /* dst */
1543 mono_mb_emit_ldloc (mb, 0);
1544 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1545 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1546 mono_mb_emit_icall (mb, conv_to_icall (conv));
1549 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1550 MonoClass *eklass = NULL;
1553 if (type->type == MONO_TYPE_SZARRAY) {
1554 eklass = type->data.klass;
1556 g_assert_not_reached ();
1559 if (eklass->valuetype)
1560 esize = mono_class_native_size (eklass, NULL);
1562 esize = sizeof (gpointer);
1564 mono_mb_emit_ldloc (mb, 0);
1565 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1566 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1568 if (eklass->blittable) {
1569 mono_mb_emit_ldloc (mb, 1);
1570 mono_mb_emit_ldloc (mb, 0);
1571 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1572 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1573 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1574 mono_mb_emit_byte (mb, CEE_PREFIX1);
1575 mono_mb_emit_byte (mb, CEE_CPBLK);
1577 int array_var, src_var, dst_var, index_var;
1578 guint32 label2, label3;
1580 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1581 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1582 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1585 mono_mb_emit_ldloc (mb, 0);
1586 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1587 mono_mb_emit_stloc (mb, array_var);
1589 /* save the old src pointer */
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_stloc (mb, src_var);
1592 /* save the old dst pointer */
1593 mono_mb_emit_ldloc (mb, 1);
1594 mono_mb_emit_stloc (mb, dst_var);
1596 /* Emit marshalling loop */
1597 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1598 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1599 mono_mb_emit_stloc (mb, index_var);
1602 label2 = mono_mb_get_label (mb);
1603 mono_mb_emit_ldloc (mb, index_var);
1604 mono_mb_emit_ldloc (mb, array_var);
1605 mono_mb_emit_byte (mb, CEE_LDLEN);
1606 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1609 mono_mb_emit_ldloc (mb, array_var);
1610 mono_mb_emit_ldloc (mb, index_var);
1611 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1612 mono_mb_emit_stloc (mb, 0);
1614 /* dst is already set */
1616 /* Do the conversion */
1617 emit_struct_conv (mb, eklass, FALSE);
1620 mono_mb_emit_add_to_local (mb, index_var, 1);
1622 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1624 mono_mb_patch_branch (mb, label3);
1626 /* restore the old src pointer */
1627 mono_mb_emit_ldloc (mb, src_var);
1628 mono_mb_emit_stloc (mb, 0);
1629 /* restore the old dst pointer */
1630 mono_mb_emit_ldloc (mb, dst_var);
1631 mono_mb_emit_stloc (mb, 1);
1634 mono_mb_patch_branch (mb, pos);
1637 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1638 mono_mb_emit_ldloc (mb, 0);
1639 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1640 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1642 mono_mb_emit_ldloc (mb, 1);
1643 mono_mb_emit_ldloc (mb, 0);
1644 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1645 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1646 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1647 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1648 mono_mb_patch_short_branch (mb, pos);
1651 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1652 int src_var, dst_var;
1654 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1655 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1657 mono_mb_emit_ldloc (mb, 0);
1658 mono_mb_emit_byte (mb, CEE_LDIND_I);
1659 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1661 /* save the old src pointer */
1662 mono_mb_emit_ldloc (mb, 0);
1663 mono_mb_emit_stloc (mb, src_var);
1664 /* save the old dst pointer */
1665 mono_mb_emit_ldloc (mb, 1);
1666 mono_mb_emit_stloc (mb, dst_var);
1668 /* src = pointer to object data */
1669 mono_mb_emit_ldloc (mb, 0);
1670 mono_mb_emit_byte (mb, CEE_LDIND_I);
1671 mono_mb_emit_icon (mb, sizeof (MonoObject));
1672 mono_mb_emit_byte (mb, CEE_ADD);
1673 mono_mb_emit_stloc (mb, 0);
1675 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1677 /* restore the old src pointer */
1678 mono_mb_emit_ldloc (mb, src_var);
1679 mono_mb_emit_stloc (mb, 0);
1680 /* restore the old dst pointer */
1681 mono_mb_emit_ldloc (mb, dst_var);
1682 mono_mb_emit_stloc (mb, 1);
1684 mono_mb_patch_branch (mb, pos);
1689 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1690 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1691 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1692 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1694 #endif /* DISABLE_COM */
1696 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1697 int dar_release_slot, pos;
1699 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1702 * The following is ifdefed-out, because I have no way of doing the
1703 * DangerousRelease when destroying the structure
1706 /* set release = false */
1707 mono_mb_emit_icon (mb, 0);
1708 mono_mb_emit_stloc (mb, dar_release_slot);
1709 if (!sh_dangerous_add_ref)
1710 init_safe_handle ();
1712 /* safehandle.DangerousAddRef (ref release) */
1713 mono_mb_emit_ldloc (mb, 0); /* the source */
1714 mono_mb_emit_byte (mb, CEE_LDIND_I);
1715 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1716 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1718 mono_mb_emit_ldloc (mb, 0);
1719 mono_mb_emit_byte (mb, CEE_LDIND_I);
1720 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1721 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1722 mono_mb_patch_branch (mb, pos);
1724 /* Pull the handle field from SafeHandle */
1725 mono_mb_emit_ldloc (mb, 1);
1726 mono_mb_emit_ldloc (mb, 0);
1727 mono_mb_emit_byte (mb, CEE_LDIND_I);
1728 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1729 mono_mb_emit_byte (mb, CEE_LDIND_I);
1730 mono_mb_emit_byte (mb, CEE_STIND_I);
1734 case MONO_MARSHAL_CONV_HANDLEREF: {
1735 mono_mb_emit_ldloc (mb, 1);
1736 mono_mb_emit_ldloc (mb, 0);
1737 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1738 mono_mb_emit_byte (mb, CEE_ADD);
1739 mono_mb_emit_byte (mb, CEE_LDIND_I);
1740 mono_mb_emit_byte (mb, CEE_STIND_I);
1745 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1746 MonoException *exc = mono_get_exception_not_implemented (msg);
1747 g_warning ("%s", msg);
1749 mono_raise_exception (exc);
1755 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1757 MonoMarshalType *info;
1761 emit_struct_conv(mb, klass->parent, to_object);
1763 info = mono_marshal_load_type_info (klass);
1765 if (info->native_size == 0)
1768 if (klass->blittable) {
1769 int msize = mono_class_value_size (klass, NULL);
1770 g_assert (msize == info->native_size);
1771 mono_mb_emit_ldloc (mb, 1);
1772 mono_mb_emit_ldloc (mb, 0);
1773 mono_mb_emit_icon (mb, msize);
1774 mono_mb_emit_byte (mb, CEE_PREFIX1);
1775 mono_mb_emit_byte (mb, CEE_CPBLK);
1777 mono_mb_emit_add_to_local (mb, 0, msize);
1778 mono_mb_emit_add_to_local (mb, 1, msize);
1782 if (klass != mono_defaults.safehandle_class) {
1783 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1784 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1785 mono_type_full_name (&klass->byval_arg));
1786 mono_mb_emit_exception_marshal_directive (mb, msg);
1791 for (i = 0; i < info->num_fields; i++) {
1792 MonoMarshalNative ntype;
1793 MonoMarshalConv conv;
1794 MonoType *ftype = info->fields [i].field->type;
1797 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1799 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1802 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1805 msize = klass->instance_size - info->fields [i].field->offset;
1806 usize = info->native_size - info->fields [i].offset;
1808 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1809 usize = info->fields [i + 1].offset - info->fields [i].offset;
1812 if (klass != mono_defaults.safehandle_class){
1814 * FIXME: Should really check for usize==0 and msize>0, but we apply
1815 * the layout to the managed structure as well.
1818 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1819 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1820 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1821 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1822 "reference field at the same offset as another field.",
1823 mono_type_full_name (&klass->byval_arg));
1828 case MONO_MARSHAL_CONV_NONE: {
1831 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1832 ftype->type == MONO_TYPE_U) {
1833 mono_mb_emit_ldloc (mb, 1);
1834 mono_mb_emit_ldloc (mb, 0);
1835 mono_mb_emit_byte (mb, CEE_LDIND_I);
1836 mono_mb_emit_byte (mb, CEE_STIND_I);
1847 case MONO_TYPE_BOOLEAN:
1850 case MONO_TYPE_CHAR:
1856 mono_mb_emit_ldloc (mb, 1);
1857 mono_mb_emit_ldloc (mb, 0);
1858 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1859 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1861 case MONO_TYPE_VALUETYPE: {
1862 int src_var, dst_var;
1864 if (ftype->data.klass->enumtype) {
1865 ftype = mono_class_enum_basetype (ftype->data.klass);
1869 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1870 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1872 /* save the old src pointer */
1873 mono_mb_emit_ldloc (mb, 0);
1874 mono_mb_emit_stloc (mb, src_var);
1875 /* save the old dst pointer */
1876 mono_mb_emit_ldloc (mb, 1);
1877 mono_mb_emit_stloc (mb, dst_var);
1879 emit_struct_conv (mb, ftype->data.klass, to_object);
1881 /* restore the old src pointer */
1882 mono_mb_emit_ldloc (mb, src_var);
1883 mono_mb_emit_stloc (mb, 0);
1884 /* restore the old dst pointer */
1885 mono_mb_emit_ldloc (mb, dst_var);
1886 mono_mb_emit_stloc (mb, 1);
1889 case MONO_TYPE_OBJECT: {
1890 mono_init_com_types ();
1892 static MonoMethod *variant_clear = NULL;
1893 static MonoMethod *get_object_for_native_variant = NULL;
1896 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1897 if (!get_object_for_native_variant)
1898 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1899 mono_mb_emit_ldloc (mb, 1);
1900 mono_mb_emit_ldloc (mb, 0);
1901 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1902 mono_mb_emit_byte (mb, CEE_STIND_REF);
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1908 static MonoMethod *get_native_variant_for_object = NULL;
1910 if (!get_native_variant_for_object)
1911 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1922 g_warning ("marshaling type %02x not implemented", ftype->type);
1923 g_assert_not_reached ();
1928 int src_var, dst_var;
1930 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1931 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1933 /* save the old src pointer */
1934 mono_mb_emit_ldloc (mb, 0);
1935 mono_mb_emit_stloc (mb, src_var);
1936 /* save the old dst pointer */
1937 mono_mb_emit_ldloc (mb, 1);
1938 mono_mb_emit_stloc (mb, dst_var);
1941 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1943 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1945 /* restore the old src pointer */
1946 mono_mb_emit_ldloc (mb, src_var);
1947 mono_mb_emit_stloc (mb, 0);
1948 /* restore the old dst pointer */
1949 mono_mb_emit_ldloc (mb, dst_var);
1950 mono_mb_emit_stloc (mb, 1);
1955 mono_mb_emit_add_to_local (mb, 0, usize);
1956 mono_mb_emit_add_to_local (mb, 1, msize);
1958 mono_mb_emit_add_to_local (mb, 0, msize);
1959 mono_mb_emit_add_to_local (mb, 1, usize);
1965 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1967 /* Call DestroyStructure */
1968 /* FIXME: Only do this if needed */
1969 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1970 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1971 mono_mb_emit_ldloc (mb, struct_var);
1972 mono_mb_emit_icall (mb, mono_struct_delete_old);
1976 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1980 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1981 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1982 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1984 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1985 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1987 mono_mb_emit_icall (mb, checkpoint_func);
1989 mono_mb_patch_branch (mb, pos_noabort);
1993 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1995 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1998 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2002 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2004 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2008 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2010 emit_thread_interrupt_checkpoint (mb);
2013 static MonoAsyncResult *
2014 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2016 MonoMethodMessage *msg;
2017 MonoDelegate *async_callback;
2018 MonoMulticastDelegate *mcast_delegate;
2022 MonoMethod *method = NULL, *method2 = NULL;
2024 g_assert (delegate);
2025 mcast_delegate = (MonoMulticastDelegate *) delegate;
2026 if (mcast_delegate->prev != NULL)
2027 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2029 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2031 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2032 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2034 /* If the target is a proxy, make a direct call. Is proxy's work
2035 // to make the call asynchronous.
2037 MonoAsyncResult *ares;
2039 MonoArray *out_args;
2040 method = delegate->method;
2042 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2043 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2044 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2045 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2046 MONO_OBJECT_SETREF (msg, async_result, ares);
2047 msg->call_type = CallType_BeginInvoke;
2050 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2052 mono_raise_exception ((MonoException *) exc);
2057 klass = delegate->object.vtable->klass;
2059 method = mono_get_delegate_invoke (klass);
2060 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2063 g_assert (method != NULL);
2065 im = mono_get_delegate_invoke (method->klass);
2066 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2068 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2072 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2074 int i, params_var, tmp_var;
2076 /* allocate local (pointer) *params[] */
2077 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2078 /* allocate local (pointer) tmp */
2079 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2081 /* alloate space on stack to store an array of pointers to the arguments */
2082 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2083 mono_mb_emit_byte (mb, CEE_PREFIX1);
2084 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2085 mono_mb_emit_stloc (mb, params_var);
2088 mono_mb_emit_ldloc (mb, params_var);
2089 mono_mb_emit_stloc (mb, tmp_var);
2091 if (save_this && sig->hasthis) {
2092 mono_mb_emit_ldloc (mb, tmp_var);
2093 mono_mb_emit_ldarg_addr (mb, 0);
2094 mono_mb_emit_byte (mb, CEE_STIND_I);
2095 /* tmp = tmp + sizeof (gpointer) */
2096 if (sig->param_count)
2097 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2101 for (i = 0; i < sig->param_count; i++) {
2102 mono_mb_emit_ldloc (mb, tmp_var);
2103 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2104 mono_mb_emit_byte (mb, CEE_STIND_I);
2105 /* tmp = tmp + sizeof (gpointer) */
2106 if (i < (sig->param_count - 1))
2107 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2114 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2118 GString *res = g_string_new ("");
2121 g_string_append (res, prefix);
2122 g_string_append_c (res, '_');
2125 mono_type_get_desc (res, sig->ret, FALSE);
2128 g_string_append (res, "__this__");
2130 for (i = 0; i < sig->param_count; ++i) {
2131 g_string_append_c (res, '_');
2132 mono_type_get_desc (res, sig->params [i], FALSE);
2135 g_string_free (res, FALSE);
2140 * mono_marshal_get_string_encoding:
2142 * Return the string encoding which should be used for a given parameter.
2144 static MonoMarshalNative
2145 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2147 /* First try the parameter marshal info */
2149 if (spec->native == MONO_NATIVE_LPARRAY) {
2150 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2151 return spec->data.array_data.elem_type;
2154 return spec->native;
2158 return MONO_NATIVE_LPSTR;
2160 /* Then try the method level marshal info */
2161 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2162 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2163 return MONO_NATIVE_LPSTR;
2164 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2165 return MONO_NATIVE_LPWSTR;
2166 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2168 return MONO_NATIVE_LPWSTR;
2170 return MONO_NATIVE_LPSTR;
2173 return MONO_NATIVE_LPSTR;
2177 static MonoMarshalConv
2178 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2180 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2183 case MONO_NATIVE_LPWSTR:
2184 return MONO_MARSHAL_CONV_STR_LPWSTR;
2185 case MONO_NATIVE_LPSTR:
2186 return MONO_MARSHAL_CONV_STR_LPSTR;
2187 case MONO_NATIVE_LPTSTR:
2188 return MONO_MARSHAL_CONV_STR_LPTSTR;
2189 case MONO_NATIVE_BSTR:
2190 return MONO_MARSHAL_CONV_STR_BSTR;
2196 static MonoMarshalConv
2197 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2199 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2202 case MONO_NATIVE_LPWSTR:
2203 return MONO_MARSHAL_CONV_SB_LPWSTR;
2205 case MONO_NATIVE_LPSTR:
2206 return MONO_MARSHAL_CONV_SB_LPSTR;
2208 case MONO_NATIVE_LPTSTR:
2209 return MONO_MARSHAL_CONV_SB_LPTSTR;
2216 static MonoMarshalConv
2217 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2219 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2224 case MONO_NATIVE_LPWSTR:
2226 return MONO_MARSHAL_CONV_LPWSTR_STR;
2227 case MONO_NATIVE_LPSTR:
2228 return MONO_MARSHAL_CONV_LPSTR_STR;
2229 case MONO_NATIVE_LPTSTR:
2230 return MONO_MARSHAL_CONV_LPTSTR_STR;
2231 case MONO_NATIVE_BSTR:
2232 return MONO_MARSHAL_CONV_BSTR_STR;
2238 static MonoMarshalConv
2239 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2241 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2246 case MONO_NATIVE_LPWSTR:
2248 * mono_string_builder_to_utf16 does not allocate a
2249 * new buffer, so no need to free it.
2252 return MONO_MARSHAL_CONV_LPWSTR_SB;
2253 case MONO_NATIVE_LPSTR:
2254 return MONO_MARSHAL_CONV_LPSTR_SB;
2256 case MONO_NATIVE_LPTSTR:
2257 return MONO_MARSHAL_CONV_LPTSTR_SB;
2265 * Return whenever a field of a native structure or an array member needs to
2269 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2271 MonoMarshalNative encoding;
2272 MonoMarshalConv conv;
2275 case MONO_TYPE_VALUETYPE:
2276 /* FIXME: Optimize this */
2278 case MONO_TYPE_OBJECT:
2279 case MONO_TYPE_CLASS:
2280 if (t->data.klass == mono_defaults.stringbuilder_class) {
2282 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2286 case MONO_TYPE_STRING:
2287 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2288 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2295 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2298 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2301 mono_marshal_lock ();
2304 g_hash_table_new (hash_func, equal_func);
2305 mono_memory_barrier ();
2308 mono_marshal_unlock ();
2314 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2316 return get_cache (var, hash_func, equal_func);
2320 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2324 mono_marshal_lock ();
2325 res = g_hash_table_lookup (cache, key);
2326 mono_marshal_unlock ();
2330 /* Create the method from the builder and place it in the cache */
2332 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2333 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2338 mono_marshal_lock ();
2339 res = g_hash_table_lookup (cache, key);
2340 mono_marshal_unlock ();
2343 newm = mono_mb_create_method (mb, sig, max_stack);
2344 mono_marshal_lock ();
2345 res = g_hash_table_lookup (cache, key);
2348 g_hash_table_insert (cache, key, res);
2349 mono_marshal_set_wrapper_info (res, key);
2350 mono_marshal_unlock ();
2352 mono_marshal_unlock ();
2353 mono_free_method (newm);
2361 static inline MonoMethod*
2362 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2364 MonoMethod *res = NULL;
2365 MonoRemotingMethods *wrps;
2367 mono_marshal_lock ();
2368 if (method->klass->image->remoting_invoke_cache)
2369 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2374 switch (wrapper_type) {
2375 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2376 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2377 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2378 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2382 /* it is important to do the unlock after the load from wrps, since in
2383 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2384 * to take the loader lock and some other thread may set the fields.
2386 mono_marshal_unlock ();
2390 /* Create the method from the builder and place it in the cache */
2391 static inline MonoMethod*
2392 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2393 MonoMethodSignature *sig, int max_stack)
2395 MonoMethod **res = NULL;
2396 MonoRemotingMethods *wrps;
2397 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2399 mono_marshal_lock ();
2400 wrps = g_hash_table_lookup (cache, key);
2402 wrps = g_new0 (MonoRemotingMethods, 1);
2403 g_hash_table_insert (cache, key, wrps);
2406 switch (mb->method->wrapper_type) {
2407 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2408 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2409 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2410 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2411 default: g_assert_not_reached (); break;
2413 mono_marshal_unlock ();
2417 newm = mono_mb_create_method (mb, sig, max_stack);
2419 mono_marshal_lock ();
2422 mono_marshal_set_wrapper_info (*res, key);
2423 mono_marshal_unlock ();
2425 mono_marshal_unlock ();
2426 mono_free_method (newm);
2434 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2438 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2441 res = mono_method_get_wrapper_data (wrapper, 1);
2448 * mono_marshal_get_wrapper_info:
2450 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2453 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2455 g_assert (wrapper->wrapper_type);
2457 return mono_method_get_wrapper_data (wrapper, 1);
2461 * mono_marshal_set_wrapper_info:
2463 * Store an arbitrary pointer inside the wrapper which is retrievable by
2464 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2465 * wrapper (method->wrapper_type).
2468 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2472 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2475 datav = ((MonoMethodWrapper *)method)->method_data;
2480 * get_wrapper_target_class:
2482 * Return the class where a wrapper method should be placed.
2485 get_wrapper_target_class (MonoImage *image)
2491 * - can't put all wrappers into an mscorlib class, because they reference
2492 * metadata (signature) so they should be put into the same image as the
2493 * method they wrap, so they are unloaded together.
2494 * - putting them into a class with a type initalizer could cause the
2495 * initializer to be executed which can be a problem if the wrappers are
2497 * - putting them into an inflated class can cause problems if the the
2498 * class is deleted because it references an image which is unloaded.
2499 * To avoid these problems, we put the wrappers into the <Module> class of
2503 klass = ((MonoDynamicImage*)image)->wrappers_type;
2505 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2512 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2514 MonoMethodSignature *sig;
2515 MonoMethodBuilder *mb;
2521 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2522 !strcmp (method->name, "BeginInvoke"));
2524 sig = mono_signature_no_pinvoke (method);
2526 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2527 (GHashFunc)mono_signature_hash,
2528 (GCompareFunc)mono_metadata_signature_equal);
2529 if ((res = mono_marshal_find_in_cache (cache, sig)))
2532 g_assert (sig->hasthis);
2534 name = mono_signature_to_name (sig, "begin_invoke");
2535 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2538 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2540 mono_mb_emit_ldarg (mb, 0);
2541 mono_mb_emit_ldloc (mb, params_var);
2542 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2543 mono_mb_emit_byte (mb, CEE_RET);
2545 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2551 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2553 MonoDomain *domain = mono_domain_get ();
2554 MonoAsyncResult *ares;
2555 MonoMethod *method = NULL;
2556 MonoMethodSignature *sig;
2557 MonoMethodMessage *msg;
2558 MonoObject *res, *exc;
2559 MonoArray *out_args;
2562 g_assert (delegate);
2564 if (!delegate->method_info) {
2565 g_assert (delegate->method);
2566 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2569 if (!delegate->method_info || !delegate->method_info->method)
2570 g_assert_not_reached ();
2572 klass = delegate->object.vtable->klass;
2574 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2575 g_assert (method != NULL);
2577 sig = mono_signature_no_pinvoke (method);
2579 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2581 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2583 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."));
2587 if (ares->async_delegate != (MonoObject*)delegate) {
2588 mono_raise_exception (mono_get_exception_invalid_operation (
2589 "The IAsyncResult object provided does not match this delegate."));
2593 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2594 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2595 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2596 mono_message_init (domain, msg, delegate->method_info, NULL);
2597 msg->call_type = CallType_EndInvoke;
2598 MONO_OBJECT_SETREF (msg, async_result, ares);
2599 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2601 res = mono_thread_pool_finish (ares, &out_args, &exc);
2605 if (((MonoException*)exc)->stack_trace) {
2606 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2608 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2610 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2613 mono_raise_exception ((MonoException*)exc);
2616 mono_method_return_message_restore (method, params, out_args);
2621 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2623 MonoType *t = mono_type_get_underlying_type (return_type);
2625 if (return_type->byref)
2626 return_type = &mono_defaults.int_class->byval_arg;
2629 case MONO_TYPE_VOID:
2630 g_assert_not_reached ();
2633 case MONO_TYPE_STRING:
2634 case MONO_TYPE_CLASS:
2635 case MONO_TYPE_OBJECT:
2636 case MONO_TYPE_ARRAY:
2637 case MONO_TYPE_SZARRAY:
2641 case MONO_TYPE_BOOLEAN:
2644 case MONO_TYPE_CHAR:
2654 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2655 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2657 case MONO_TYPE_GENERICINST:
2658 if (!mono_type_generic_inst_is_valuetype (t))
2661 case MONO_TYPE_VALUETYPE: {
2662 MonoClass *klass = mono_class_from_mono_type (return_type);
2663 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2664 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2668 g_warning ("type 0x%x not handled", return_type->type);
2669 g_assert_not_reached ();
2672 mono_mb_emit_byte (mb, CEE_RET);
2676 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2678 MonoMethodSignature *sig;
2679 MonoMethodBuilder *mb;
2685 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2686 !strcmp (method->name, "EndInvoke"));
2688 sig = mono_signature_no_pinvoke (method);
2690 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2691 (GHashFunc)mono_signature_hash,
2692 (GCompareFunc)mono_metadata_signature_equal);
2693 if ((res = mono_marshal_find_in_cache (cache, sig)))
2696 g_assert (sig->hasthis);
2698 name = mono_signature_to_name (sig, "end_invoke");
2699 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2702 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2704 mono_mb_emit_ldarg (mb, 0);
2705 mono_mb_emit_ldloc (mb, params_var);
2706 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2708 if (sig->ret->type == MONO_TYPE_VOID) {
2709 mono_mb_emit_byte (mb, CEE_POP);
2710 mono_mb_emit_byte (mb, CEE_RET);
2712 mono_mb_emit_restore_result (mb, sig->ret);
2714 res = mono_mb_create_and_cache (cache, sig,
2715 mb, sig, sig->param_count + 16);
2722 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2724 MonoMethodMessage *msg;
2725 MonoTransparentProxy *this;
2726 MonoObject *res, *exc;
2727 MonoArray *out_args;
2729 this = *((MonoTransparentProxy **)params [0]);
2732 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2734 /* skip the this pointer */
2737 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2740 MonoMethodSignature *sig = mono_method_signature (method);
2741 int count = sig->param_count;
2742 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2744 for (i=0; i<count; i++) {
2745 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2746 if (class->valuetype) {
2747 if (sig->params [i]->byref) {
2748 mparams[i] = *((gpointer *)params [i]);
2750 /* runtime_invoke expects a boxed instance */
2751 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2752 mparams[i] = mono_nullable_box (params [i], class);
2754 mparams[i] = params [i];
2757 mparams[i] = *((gpointer**)params [i]);
2761 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2764 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2766 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2769 mono_raise_exception ((MonoException *)exc);
2771 mono_method_return_message_restore (method, params, out_args);
2777 mono_marshal_get_remoting_invoke (MonoMethod *method)
2779 MonoMethodSignature *sig;
2780 MonoMethodBuilder *mb;
2786 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2789 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2790 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2791 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2792 g_assert (vtable); /*FIXME do proper error handling*/
2794 if (!vtable->remote) {
2796 return mono_cominterop_get_invoke (method);
2798 g_assert_not_reached ();
2803 sig = mono_signature_no_pinvoke (method);
2805 /* we cant remote methods without this pointer */
2809 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2812 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2813 mb->method->save_lmf = 1;
2815 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2817 mono_mb_emit_ptr (mb, method);
2818 mono_mb_emit_ldloc (mb, params_var);
2819 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2820 emit_thread_interrupt_checkpoint (mb);
2822 if (sig->ret->type == MONO_TYPE_VOID) {
2823 mono_mb_emit_byte (mb, CEE_POP);
2824 mono_mb_emit_byte (mb, CEE_RET);
2826 mono_mb_emit_restore_result (mb, sig->ret);
2829 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2835 /* mono_get_xdomain_marshal_type()
2836 * Returns the kind of marshalling that a type needs for cross domain calls.
2838 static MonoXDomainMarshalType
2839 mono_get_xdomain_marshal_type (MonoType *t)
2842 case MONO_TYPE_VOID:
2843 g_assert_not_reached ();
2847 case MONO_TYPE_BOOLEAN:
2850 case MONO_TYPE_CHAR:
2857 return MONO_MARSHAL_NONE;
2858 case MONO_TYPE_STRING:
2859 return MONO_MARSHAL_COPY;
2860 case MONO_TYPE_ARRAY:
2861 case MONO_TYPE_SZARRAY: {
2862 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2863 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2864 return MONO_MARSHAL_COPY;
2869 return MONO_MARSHAL_SERIALIZE;
2873 /* mono_marshal_xdomain_copy_value
2874 * Makes a copy of "val" suitable for the current domain.
2877 mono_marshal_xdomain_copy_value (MonoObject *val)
2880 if (val == NULL) return NULL;
2882 domain = mono_domain_get ();
2884 switch (mono_object_class (val)->byval_arg.type) {
2885 case MONO_TYPE_VOID:
2886 g_assert_not_reached ();
2890 case MONO_TYPE_BOOLEAN:
2893 case MONO_TYPE_CHAR:
2899 case MONO_TYPE_R8: {
2900 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2902 case MONO_TYPE_STRING: {
2903 MonoString *str = (MonoString *) val;
2904 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2906 case MONO_TYPE_ARRAY:
2907 case MONO_TYPE_SZARRAY: {
2909 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2910 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2911 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2912 if (mt == MONO_MARSHAL_COPY) {
2913 int i, len = mono_array_length (acopy);
2914 for (i = 0; i < len; i++) {
2915 MonoObject *item = mono_array_get (acopy, gpointer, i);
2916 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2919 return (MonoObject *) acopy;
2923 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2924 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2925 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2926 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2927 newsb->length = oldsb->length;
2928 newsb->max_capacity = (gint32)0x7fffffff;
2929 return (MonoObject *) newsb;
2934 /* mono_marshal_xdomain_copy_out_value()
2935 * Copies the contents of the src instance into the dst instance. src and dst
2936 * must have the same type, and if they are arrays, the same size.
2939 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2941 if (src == NULL || dst == NULL) return;
2943 g_assert (mono_object_class (src) == mono_object_class (dst));
2945 switch (mono_object_class (src)->byval_arg.type) {
2946 case MONO_TYPE_ARRAY:
2947 case MONO_TYPE_SZARRAY: {
2948 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2949 if (mt == MONO_MARSHAL_SERIALIZE) return;
2950 if (mt == MONO_MARSHAL_COPY) {
2951 int i, len = mono_array_length ((MonoArray *)dst);
2952 for (i = 0; i < len; i++) {
2953 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2954 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2957 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2963 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2964 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2965 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2967 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)));
2968 dst_sb->cached_str = NULL;
2969 dst_sb->length = src_sb->length;
2974 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2976 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2977 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2981 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2983 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2986 /* mono_marshal_supports_fast_xdomain()
2987 * Returns TRUE if the method can use the fast xdomain wrapper.
2990 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2992 return !method->klass->contextbound &&
2993 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2997 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2999 MonoDomain *current_domain = mono_domain_get ();
3000 MonoDomain *domain = mono_domain_get_by_id (id);
3002 if (!domain || !mono_domain_set (domain, FALSE))
3003 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3006 mono_thread_push_appdomain_ref (domain);
3008 mono_thread_pop_appdomain_ref ();
3010 return current_domain->domain_id;
3014 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3016 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3019 /* mono_marshal_emit_load_domain_method ()
3020 * Loads into the stack a pointer to the code of the provided method for
3021 * the current domain.
3024 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3026 /* We need a pointer to the method for the running domain (not the domain
3027 * that compiles the method).
3029 mono_mb_emit_ptr (mb, method);
3030 mono_mb_emit_icall (mb, mono_compile_method);
3033 /* mono_marshal_check_domain_image ()
3034 * Returns TRUE if the image is loaded in the specified
3035 * application domain.
3038 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3043 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3047 mono_domain_assemblies_lock (domain);
3048 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3050 if (ass->image == image)
3053 mono_domain_assemblies_unlock (domain);
3058 /* mono_marshal_get_xappdomain_dispatch ()
3059 * Generates a method that dispatches a method call from another domain into
3060 * the current domain.
3063 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3065 MonoMethodSignature *sig, *csig;
3066 MonoMethodBuilder *mb;
3068 int i, j, param_index, copy_locals_base;
3069 MonoClass *ret_class = NULL;
3070 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3071 MonoExceptionClause *main_clause;
3073 gboolean copy_return;
3075 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3078 sig = mono_method_signature (method);
3079 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3082 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3083 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3084 csig->params [j++] = &byte_array_class->this_arg;
3085 csig->params [j++] = &byte_array_class->this_arg;
3086 for (i = 0; i < sig->param_count; i++) {
3087 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3088 csig->params [j++] = sig->params [i];
3091 csig->ret = sig->ret;
3093 csig->ret = &mono_defaults.void_class->byval_arg;
3095 csig->hasthis = FALSE;
3097 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3098 mb->method->save_lmf = 1;
3102 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3103 if (complex_count > 0)
3104 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3105 if (sig->ret->type != MONO_TYPE_VOID) {
3106 loc_return = mono_mb_add_local (mb, sig->ret);
3107 ret_class = mono_class_from_mono_type (sig->ret);
3112 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3113 main_clause->try_offset = mono_mb_get_label (mb);
3115 /* Clean the call context */
3117 mono_mb_emit_byte (mb, CEE_LDNULL);
3118 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3119 mono_mb_emit_byte (mb, CEE_POP);
3121 /* Deserialize call data */
3123 mono_mb_emit_ldarg (mb, 1);
3124 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3125 mono_mb_emit_byte (mb, CEE_DUP);
3126 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3128 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3129 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3131 if (complex_count > 0)
3132 mono_mb_emit_stloc (mb, loc_array);
3134 mono_mb_emit_byte (mb, CEE_POP);
3136 mono_mb_patch_short_branch (mb, pos);
3138 /* Get the target object */
3140 mono_mb_emit_ldarg (mb, 0);
3141 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3143 /* Load the arguments */
3145 copy_locals_base = mb->locals;
3146 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3148 for (i = 0; i < sig->param_count; i++) {
3149 MonoType *pt = sig->params [i];
3150 MonoClass *pclass = mono_class_from_mono_type (pt);
3151 switch (marshal_types [i]) {
3152 case MONO_MARSHAL_SERIALIZE: {
3153 /* take the value from the serialized array */
3154 mono_mb_emit_ldloc (mb, loc_array);
3155 mono_mb_emit_icon (mb, j++);
3157 if (pclass->valuetype) {
3158 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3159 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3161 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3164 if (pclass->valuetype) {
3165 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3166 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3167 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3169 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3170 if (pclass != mono_defaults.object_class) {
3171 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3177 case MONO_MARSHAL_COPY_OUT: {
3178 /* Keep a local copy of the value since we need to copy it back after the call */
3179 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3180 mono_mb_emit_ldarg (mb, param_index++);
3181 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3182 mono_mb_emit_byte (mb, CEE_DUP);
3183 mono_mb_emit_stloc (mb, copy_local);
3186 case MONO_MARSHAL_COPY: {
3187 mono_mb_emit_ldarg (mb, param_index);
3189 mono_mb_emit_byte (mb, CEE_DUP);
3190 mono_mb_emit_byte (mb, CEE_DUP);
3191 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3192 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3193 mono_mb_emit_byte (mb, CEE_STIND_REF);
3195 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3200 case MONO_MARSHAL_NONE:
3201 mono_mb_emit_ldarg (mb, param_index++);
3206 /* Make the call to the real object */
3208 emit_thread_force_interrupt_checkpoint (mb);
3210 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3212 if (sig->ret->type != MONO_TYPE_VOID)
3213 mono_mb_emit_stloc (mb, loc_return);
3215 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3219 for (i = 0; i < sig->param_count; i++) {
3220 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3221 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3222 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3223 mono_mb_emit_ldarg (mb, param_index);
3224 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3229 /* Serialize the return values */
3231 if (complex_out_count > 0) {
3232 /* Reset parameters in the array that don't need to be serialized back */
3234 for (i = 0; i < sig->param_count; i++) {
3235 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3236 if (!sig->params [i]->byref) {
3237 mono_mb_emit_ldloc (mb, loc_array);
3238 mono_mb_emit_icon (mb, j);
3239 mono_mb_emit_byte (mb, CEE_LDNULL);
3240 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3245 /* Add the return value to the array */
3247 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3248 mono_mb_emit_ldloc (mb, loc_array);
3249 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3250 mono_mb_emit_ldloc (mb, loc_return);
3252 g_assert (ret_class); /*FIXME properly fail here*/
3253 if (ret_class->valuetype) {
3254 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3256 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3261 mono_mb_emit_ldarg (mb, 1);
3262 mono_mb_emit_ldloc (mb, loc_array);
3263 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3264 mono_mb_emit_byte (mb, CEE_STIND_REF);
3265 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3266 mono_mb_emit_ldarg (mb, 1);
3267 mono_mb_emit_ldloc (mb, loc_return);
3268 if (ret_class->valuetype) {
3269 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3271 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3272 mono_mb_emit_byte (mb, CEE_STIND_REF);
3274 mono_mb_emit_ldarg (mb, 1);
3275 mono_mb_emit_byte (mb, CEE_LDNULL);
3276 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3277 mono_mb_emit_byte (mb, CEE_STIND_REF);
3280 mono_mb_emit_ldarg (mb, 2);
3281 mono_mb_emit_byte (mb, CEE_LDNULL);
3282 mono_mb_emit_byte (mb, CEE_STIND_REF);
3283 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3285 /* Main exception catch */
3286 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3287 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3288 main_clause->data.catch_class = mono_defaults.object_class;
3291 main_clause->handler_offset = mono_mb_get_label (mb);
3292 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3293 mono_mb_emit_stloc (mb, loc_serialized_exc);
3294 mono_mb_emit_ldarg (mb, 2);
3295 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3296 mono_mb_emit_byte (mb, CEE_STIND_REF);
3297 mono_mb_emit_branch (mb, CEE_LEAVE);
3298 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3301 mono_mb_patch_branch (mb, pos_leave);
3304 mono_mb_emit_ldloc (mb, loc_return);
3306 mono_mb_emit_byte (mb, CEE_RET);
3308 mono_mb_set_clauses (mb, 1, main_clause);
3310 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3316 /* mono_marshal_get_xappdomain_invoke ()
3317 * Generates a fast remoting wrapper for cross app domain calls.
3320 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3322 MonoMethodSignature *sig;
3323 MonoMethodBuilder *mb;
3325 int i, j, complex_count, complex_out_count, copy_locals_base;
3327 MonoClass *ret_class = NULL;
3328 MonoMethod *xdomain_method;
3329 int ret_marshal_type = MONO_MARSHAL_NONE;
3330 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3331 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3332 int pos, pos_dispatch, pos_noex;
3333 gboolean copy_return = FALSE;
3337 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3340 /* we cant remote methods without this pointer */
3341 if (!mono_method_signature (method)->hasthis)
3344 if (!mono_marshal_supports_fast_xdomain (method))
3345 return mono_marshal_get_remoting_invoke (method);
3347 mono_remoting_marshal_init ();
3349 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3352 sig = mono_signature_no_pinvoke (method);
3354 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3355 mb->method->save_lmf = 1;
3357 /* Count the number of parameters that need to be serialized */
3359 marshal_types = alloca (sizeof (int) * sig->param_count);
3360 complex_count = complex_out_count = 0;
3361 for (i = 0; i < sig->param_count; i++) {
3362 MonoType *ptype = sig->params[i];
3363 int mt = mono_get_xdomain_marshal_type (ptype);
3365 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3366 * the copy will be made by reusing the original object instance
3368 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3369 mt = MONO_MARSHAL_COPY_OUT;
3370 else if (mt == MONO_MARSHAL_SERIALIZE) {
3372 if (ptype->byref) complex_out_count++;
3374 marshal_types [i] = mt;
3377 if (sig->ret->type != MONO_TYPE_VOID) {
3378 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3379 ret_class = mono_class_from_mono_type (sig->ret);
3380 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3385 if (complex_count > 0)
3386 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3387 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3388 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3390 loc_return = mono_mb_add_local (mb, sig->ret);
3391 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3392 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3393 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3394 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3396 /* Save thread domain data */
3398 mono_mb_emit_icall (mb, mono_context_get);
3399 mono_mb_emit_byte (mb, CEE_DUP);
3400 mono_mb_emit_stloc (mb, loc_context);
3402 /* If the thread is not running in the default context, it needs to go
3403 * through the whole remoting sink, since the context is going to change
3405 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3406 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3408 /* Another case in which the fast path can't be used: when the target domain
3409 * has a different image for the same assembly.
3412 /* Get the target domain id */
3414 mono_mb_emit_ldarg (mb, 0);
3415 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3416 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3417 mono_mb_emit_byte (mb, CEE_DUP);
3418 mono_mb_emit_stloc (mb, loc_real_proxy);
3420 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3421 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3422 mono_mb_emit_stloc (mb, loc_domainid);
3424 /* Check if the target domain has the same image for the required assembly */
3426 mono_mb_emit_ldloc (mb, loc_domainid);
3427 mono_mb_emit_ptr (mb, method->klass->image);
3428 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3429 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3431 /* Use the whole remoting sink to dispatch this message */
3433 mono_mb_patch_short_branch (mb, pos);
3435 mono_mb_emit_ldarg (mb, 0);
3436 for (i = 0; i < sig->param_count; i++)
3437 mono_mb_emit_ldarg (mb, i + 1);
3439 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3440 mono_mb_emit_byte (mb, CEE_RET);
3441 mono_mb_patch_short_branch (mb, pos_dispatch);
3443 /* Create the array that will hold the parameters to be serialized */
3445 if (complex_count > 0) {
3446 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 */
3447 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3450 for (i = 0; i < sig->param_count; i++) {
3452 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3453 pclass = mono_class_from_mono_type (sig->params[i]);
3454 mono_mb_emit_byte (mb, CEE_DUP);
3455 mono_mb_emit_icon (mb, j);
3456 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3457 if (sig->params[i]->byref) {
3458 if (pclass->valuetype)
3459 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3461 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3463 if (pclass->valuetype)
3464 mono_mb_emit_op (mb, CEE_BOX, pclass);
3465 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3468 mono_mb_emit_stloc (mb, loc_array);
3470 /* Serialize parameters */
3472 mono_mb_emit_ldloc (mb, loc_array);
3473 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3474 mono_mb_emit_stloc (mb, loc_serialized_data);
3476 mono_mb_emit_byte (mb, CEE_LDNULL);
3477 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3478 mono_mb_emit_stloc (mb, loc_serialized_data);
3483 mono_mb_emit_ldloc (mb, loc_domainid);
3484 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3485 mono_marshal_emit_switch_domain (mb);
3486 mono_mb_emit_stloc (mb, loc_old_domainid);
3488 /* Load the arguments */
3490 mono_mb_emit_ldloc (mb, loc_real_proxy);
3491 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3492 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3494 copy_locals_base = mb->locals;
3495 for (i = 0; i < sig->param_count; i++) {
3496 switch (marshal_types [i]) {
3497 case MONO_MARSHAL_SERIALIZE:
3499 case MONO_MARSHAL_COPY: {
3500 mono_mb_emit_ldarg (mb, i+1);
3501 if (sig->params [i]->byref) {
3502 /* make a local copy of the byref parameter. The real parameter
3503 * will be updated after the xdomain call
3505 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3506 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3507 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3508 mono_mb_emit_stloc (mb, copy_local);
3509 mono_mb_emit_ldloc_addr (mb, copy_local);
3513 case MONO_MARSHAL_COPY_OUT:
3514 case MONO_MARSHAL_NONE:
3515 mono_mb_emit_ldarg (mb, i+1);
3520 /* Make the call to the invoke wrapper in the target domain */
3522 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3523 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3524 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3527 mono_mb_emit_stloc (mb, loc_return);
3531 mono_mb_emit_ldloc (mb, loc_old_domainid);
3532 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3533 mono_marshal_emit_switch_domain (mb);
3534 mono_mb_emit_byte (mb, CEE_POP);
3536 /* Restore thread domain data */
3538 mono_mb_emit_ldloc (mb, loc_context);
3539 mono_mb_emit_icall (mb, mono_context_set);
3541 /* if (loc_serialized_exc != null) ... */
3543 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3544 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3546 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3547 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3548 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3549 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3550 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3551 mono_mb_emit_byte (mb, CEE_THROW);
3552 mono_mb_patch_short_branch (mb, pos_noex);
3554 /* copy back non-serialized output parameters */
3557 for (i = 0; i < sig->param_count; i++) {
3558 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3559 mono_mb_emit_ldarg (mb, i + 1);
3560 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3561 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3562 mono_mb_emit_byte (mb, CEE_STIND_REF);
3565 /* Deserialize out parameters */
3567 if (complex_out_count > 0) {
3568 mono_mb_emit_ldloc (mb, loc_serialized_data);
3569 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3570 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3571 mono_mb_emit_stloc (mb, loc_array);
3573 /* Copy back output parameters and return type */
3576 for (i = 0; i < sig->param_count; i++) {
3577 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3578 if (sig->params[i]->byref) {
3579 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3580 mono_mb_emit_ldarg (mb, i + 1);
3581 mono_mb_emit_ldloc (mb, loc_array);
3582 mono_mb_emit_icon (mb, j);
3583 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3584 if (pclass->valuetype) {
3585 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3586 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3587 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3589 if (pclass != mono_defaults.object_class)
3590 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3591 mono_mb_emit_byte (mb, CEE_STIND_REF);
3597 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3598 mono_mb_emit_ldloc (mb, loc_array);
3599 mono_mb_emit_icon (mb, complex_count);
3600 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3601 if (ret_class->valuetype) {
3602 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3603 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3606 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3607 mono_mb_emit_ldloc (mb, loc_serialized_data);
3608 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3609 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3610 if (ret_class->valuetype) {
3611 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3612 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3613 } else if (ret_class != mono_defaults.object_class) {
3614 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3617 mono_mb_emit_ldloc (mb, loc_serialized_data);
3618 mono_mb_emit_byte (mb, CEE_DUP);
3619 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3620 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3622 mono_mb_patch_short_branch (mb, pos);
3623 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3624 mono_mb_emit_byte (mb, CEE_POP);
3628 mono_mb_emit_ldloc (mb, loc_return);
3629 if (ret_marshal_type == MONO_MARSHAL_COPY)
3630 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3633 mono_mb_emit_byte (mb, CEE_RET);
3635 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3642 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3644 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3645 return mono_marshal_get_xappdomain_invoke (method);
3646 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3648 return mono_cominterop_get_invoke (method);
3650 g_assert_not_reached ();
3653 return mono_marshal_get_remoting_invoke (method);
3659 G_GNUC_UNUSED static gpointer
3660 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3662 if (rp->target_domain_id != -1)
3663 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3665 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3669 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3671 MonoMethodSignature *sig;
3672 MonoMethodBuilder *mb;
3673 MonoMethod *res, *native;
3674 int i, pos, pos_rem;
3678 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3681 /* we cant remote methods without this pointer */
3682 g_assert (mono_method_signature (method)->hasthis);
3684 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3687 sig = mono_signature_no_pinvoke (method);
3689 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3691 for (i = 0; i <= sig->param_count; i++)
3692 mono_mb_emit_ldarg (mb, i);
3694 mono_mb_emit_ldarg (mb, 0);
3695 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3697 if (mono_marshal_supports_fast_xdomain (method)) {
3698 mono_mb_emit_ldarg (mb, 0);
3699 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3701 /* wrapper for cross app domain calls */
3702 native = mono_marshal_get_xappdomain_invoke (method);
3703 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3704 mono_mb_emit_byte (mb, CEE_RET);
3706 mono_mb_patch_branch (mb, pos_rem);
3708 /* wrapper for normal remote calls */
3709 native = mono_marshal_get_remoting_invoke (method);
3710 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3711 mono_mb_emit_byte (mb, CEE_RET);
3714 mono_mb_patch_branch (mb, pos);
3715 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3716 mono_mb_emit_byte (mb, CEE_RET);
3718 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3726 MonoMethodSignature *sig;
3728 } SignatureMethodPair;
3731 signature_method_pair_hash (gconstpointer data)
3733 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3735 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3739 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3741 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3745 free_signature_method_pair (SignatureMethodPair *pair)
3751 * the returned method invokes all methods in a multicast delegate.
3754 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3756 MonoMethodSignature *sig, *static_sig;
3758 MonoMethodBuilder *mb;
3759 MonoMethod *res, *newm;
3761 SignatureMethodPair key;
3762 SignatureMethodPair *new_key;
3763 int local_prev, local_target;
3766 MonoMethod *target_method = NULL;
3767 MonoClass *target_class = NULL;
3768 gboolean callvirt = FALSE;
3771 * If the delegate target is null, and the target method is not static, a virtual
3772 * call is made to that method with the first delegate argument as this. This is
3773 * a non-documented .NET feature.
3775 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3777 target_method = del->method;
3778 if (target_method->is_inflated) {
3779 MonoType *target_type;
3781 g_assert (method->signature->hasthis);
3782 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3783 mono_method_get_context (method));
3784 target_class = mono_class_from_mono_type (target_type);
3786 target_class = del->method->klass;
3790 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3791 !strcmp (method->name, "Invoke"));
3793 sig = mono_signature_no_pinvoke (method);
3796 /* We need to cache the signature+method pair */
3797 mono_marshal_lock ();
3798 if (!method->klass->image->delegate_abstract_invoke_cache)
3799 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);
3800 cache = method->klass->image->delegate_abstract_invoke_cache;
3802 key.method = target_method;
3803 res = g_hash_table_lookup (cache, &key);
3804 mono_marshal_unlock ();
3808 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3809 (GHashFunc)mono_signature_hash,
3810 (GCompareFunc)mono_metadata_signature_equal);
3811 if ((res = mono_marshal_find_in_cache (cache, sig)))
3815 static_sig = signature_dup (method->klass->image, sig);
3816 static_sig->hasthis = 0;
3818 name = mono_signature_to_name (sig, "invoke");
3819 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3822 /* allocate local 0 (object) */
3823 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3824 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3826 g_assert (sig->hasthis);
3830 * prev.Invoke( args .. );
3831 * return this.<target>( args .. );
3834 /* this wrapper can be used in unmanaged-managed transitions */
3835 emit_thread_interrupt_checkpoint (mb);
3837 /* get this->prev */
3838 mono_mb_emit_ldarg (mb, 0);
3839 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3840 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3841 mono_mb_emit_stloc (mb, local_prev);
3842 mono_mb_emit_ldloc (mb, local_prev);
3844 /* if prev != null */
3845 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3849 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3850 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3852 mono_mb_emit_ldloc (mb, local_prev);
3853 for (i = 0; i < sig->param_count; i++)
3854 mono_mb_emit_ldarg (mb, i + 1);
3855 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3856 if (sig->ret->type != MONO_TYPE_VOID)
3857 mono_mb_emit_byte (mb, CEE_POP);
3859 /* continued or prev == null */
3860 mono_mb_patch_branch (mb, pos0);
3862 /* get this->target */
3863 mono_mb_emit_ldarg (mb, 0);
3864 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3865 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3866 mono_mb_emit_stloc (mb, local_target);
3868 /* if target != null */
3869 mono_mb_emit_ldloc (mb, local_target);
3870 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3872 /* then call this->method_ptr nonstatic */
3875 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3877 mono_mb_emit_ldloc (mb, local_target);
3878 for (i = 0; i < sig->param_count; ++i)
3879 mono_mb_emit_ldarg (mb, i + 1);
3880 mono_mb_emit_ldarg (mb, 0);
3881 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3882 mono_mb_emit_byte (mb, CEE_LDIND_I );
3883 mono_mb_emit_op (mb, CEE_CALLI, sig);
3885 mono_mb_emit_byte (mb, CEE_RET);
3888 /* else [target == null] call this->method_ptr static */
3889 mono_mb_patch_branch (mb, pos0);
3892 mono_mb_emit_ldarg (mb, 1);
3893 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3894 for (i = 1; i < sig->param_count; ++i)
3895 mono_mb_emit_ldarg (mb, i + 1);
3896 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3898 for (i = 0; i < sig->param_count; ++i)
3899 mono_mb_emit_ldarg (mb, i + 1);
3900 mono_mb_emit_ldarg (mb, 0);
3901 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3902 mono_mb_emit_byte (mb, CEE_LDIND_I );
3903 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3906 mono_mb_emit_byte (mb, CEE_RET);
3909 // From mono_mb_create_and_cache
3910 mb->skip_visibility = 1;
3911 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3912 /*We perform double checked locking, so must fence before publishing*/
3913 mono_memory_barrier ();
3914 mono_marshal_lock ();
3915 res = g_hash_table_lookup (cache, &key);
3918 new_key = g_new0 (SignatureMethodPair, 1);
3920 new_key->method = target_method;
3921 g_hash_table_insert (cache, new_key, res);
3922 mono_marshal_set_wrapper_info (res, new_key);
3923 mono_marshal_unlock ();
3925 mono_marshal_unlock ();
3926 mono_free_method (newm);
3929 mb->skip_visibility = 1;
3930 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3938 * signature_dup_add_this:
3940 * Make a copy of @sig, adding an explicit this argument.
3942 static MonoMethodSignature*
3943 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3945 MonoMethodSignature *res;
3948 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3949 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3950 res->param_count = sig->param_count + 1;
3951 res->hasthis = FALSE;
3952 for (i = sig->param_count - 1; i >= 0; i --)
3953 res->params [i + 1] = sig->params [i];
3954 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3960 MonoMethodSignature *ctor_sig;
3961 MonoMethodSignature *sig;
3964 /* protected by the marshal lock, contains CtorSigPair pointers */
3965 static GSList *strsig_list = NULL;
3967 static MonoMethodSignature *
3968 lookup_string_ctor_signature (MonoMethodSignature *sig)
3970 MonoMethodSignature *callsig;
3974 mono_marshal_lock ();
3976 for (item = strsig_list; item; item = item->next) {
3978 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3979 * because it is lock-free.
3981 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3986 mono_marshal_unlock ();
3990 static MonoMethodSignature *
3991 add_string_ctor_signature (MonoMethod *method)
3993 MonoMethodSignature *callsig;
3996 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3997 callsig->ret = &mono_defaults.string_class->byval_arg;
3998 cs = g_new (CtorSigPair, 1);
4000 cs->ctor_sig = mono_method_signature (method);
4002 mono_marshal_lock ();
4003 strsig_list = g_slist_prepend (strsig_list, cs);
4004 mono_marshal_unlock ();
4009 * mono_marshal_get_string_ctor_signature:
4011 * Return the modified signature used by string ctors (they return the newly created
4014 MonoMethodSignature*
4015 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4017 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4019 sig = add_string_ctor_signature (method);
4025 get_runtime_invoke_type (MonoType *t, gboolean ret)
4028 /* Can't share this with 'I' as that needs another indirection */
4031 if (MONO_TYPE_IS_REFERENCE (t))
4032 return &mono_defaults.object_class->byval_arg;
4035 /* The result needs to be boxed */
4041 return &mono_defaults.sbyte_class->byval_arg;
4043 return &mono_defaults.int16_class->byval_arg;
4045 return &mono_defaults.int32_class->byval_arg;
4047 return &mono_defaults.int64_class->byval_arg;
4048 case MONO_TYPE_BOOLEAN:
4049 return &mono_defaults.sbyte_class->byval_arg;
4050 case MONO_TYPE_CHAR:
4051 return &mono_defaults.int16_class->byval_arg;
4054 return &mono_defaults.int_class->byval_arg;
4055 case MONO_TYPE_VALUETYPE:
4056 if (t->data.klass->enumtype) {
4057 t = mono_class_enum_basetype (t->data.klass);
4067 * mono_marshal_get_runtime_invoke_sig:
4069 * Return a common signature used for sharing runtime invoke wrappers.
4071 static MonoMethodSignature*
4072 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4074 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4077 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4078 for (i = 0; i < res->param_count; ++i)
4079 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4085 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4087 /* Can't share wrappers which return a vtype since it needs to be boxed */
4088 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))
4091 return mono_metadata_signature_equal (sig1, sig2);
4095 * generates IL code for the runtime invoke function
4096 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4098 * we also catch exceptions if exc != null
4099 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4100 * it means that the compiled code for METHOD does not have to be looked up
4101 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4102 * its METHOD argument.
4105 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4107 MonoMethodSignature *sig, *csig, *callsig;
4108 MonoExceptionClause *clause;
4109 MonoMethodBuilder *mb;
4110 GHashTable *cache = NULL;
4111 MonoClass *target_klass;
4112 MonoMethod *res = NULL;
4113 static MonoString *string_dummy = NULL;
4114 static MonoMethodSignature *cctor_signature = NULL;
4115 static MonoMethodSignature *finalize_signature = NULL;
4118 gboolean need_direct_wrapper = FALSE;
4119 int *tmp_nullable_locals;
4123 if (!cctor_signature) {
4124 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4125 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4127 if (!finalize_signature) {
4128 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4129 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4130 finalize_signature->hasthis = 1;
4134 need_direct_wrapper = TRUE;
4137 * Use a separate cache indexed by methods to speed things up and to avoid the
4138 * boundless mempool growth caused by the signature_dup stuff below.
4141 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4143 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4144 res = mono_marshal_find_in_cache (cache, method);
4148 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4149 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4151 * Array Get/Set/Address methods. The JIT implements them using inline code
4152 * so we need to create an invoke wrapper which calls the method directly.
4154 need_direct_wrapper = TRUE;
4157 if (method->string_ctor) {
4158 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4160 callsig = add_string_ctor_signature (method);
4161 /* Can't share this as we push a string as this */
4162 need_direct_wrapper = TRUE;
4164 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4166 * Valuetype methods receive a managed pointer as the this argument.
4167 * Create a new signature to reflect this.
4169 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4170 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4171 need_direct_wrapper = TRUE;
4173 if (method->dynamic)
4174 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4176 callsig = mono_method_signature (method);
4181 /* Vtypes/nullables/Byrefs cause too many problems */
4182 for (i = 0; i < callsig->param_count; ++i) {
4183 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4184 need_direct_wrapper = TRUE;
4189 * We try to share runtime invoke wrappers between different methods but have to
4190 * be careful about methods whose klass has a type cctor, since putting the wrapper
4191 * into that klass would mean that calling a method of klass A might invoke the
4192 * type initializer of class B, or throw an exception if the type initializer
4193 * was called before and failed. See #349621 for an example.
4194 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4196 if (method->klass->image == mono_defaults.corlib)
4197 target_klass = mono_defaults.object_class;
4199 /* Try to share wrappers for non-corlib methods with simple signatures */
4200 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4201 callsig = cctor_signature;
4202 target_klass = mono_defaults.object_class;
4203 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4204 callsig = finalize_signature;
4205 target_klass = mono_defaults.object_class;
4207 // FIXME: This breaks too many things
4209 if (mono_class_get_cctor (method->klass))
4210 need_direct_wrapper = TRUE;
4213 target_klass = get_wrapper_target_class (method->klass->image);
4217 if (need_direct_wrapper) {
4218 /* Already searched at the start */
4220 MonoMethodSignature *tmp_sig;
4222 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4224 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4225 (GHashFunc)mono_signature_hash,
4226 (GCompareFunc)runtime_invoke_signature_equal);
4228 /* from mono_marshal_find_in_cache */
4229 mono_marshal_lock ();
4230 res = g_hash_table_lookup (cache, callsig);
4231 mono_marshal_unlock ();
4238 /* Make a copy of the signature from the image mempool */
4240 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4244 /* to make it work with our special string constructors */
4245 if (!string_dummy) {
4246 MONO_GC_REGISTER_ROOT (string_dummy);
4247 string_dummy = mono_string_new_wrapper ("dummy");
4250 sig = mono_method_signature (method);
4252 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4254 csig->ret = &mono_defaults.object_class->byval_arg;
4255 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4256 csig->params [0] = callsig->params [0];
4258 csig->params [0] = &mono_defaults.object_class->byval_arg;
4259 csig->params [1] = &mono_defaults.int_class->byval_arg;
4260 csig->params [2] = &mono_defaults.int_class->byval_arg;
4261 csig->params [3] = &mono_defaults.int_class->byval_arg;
4263 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4264 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4267 /* allocate local 0 (object) tmp */
4268 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4269 /* allocate local 1 (object) exc */
4270 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4272 /* cond set *exc to null */
4273 mono_mb_emit_byte (mb, CEE_LDARG_2);
4274 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4275 mono_mb_emit_byte (mb, 3);
4276 mono_mb_emit_byte (mb, CEE_LDARG_2);
4277 mono_mb_emit_byte (mb, CEE_LDNULL);
4278 mono_mb_emit_byte (mb, CEE_STIND_REF);
4280 emit_thread_force_interrupt_checkpoint (mb);
4283 g_assert (sig->hasthis);
4284 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4288 if (method->string_ctor) {
4289 mono_mb_emit_ptr (mb, string_dummy);
4291 mono_mb_emit_ldarg (mb, 0);
4295 tmp_nullable_locals = g_new0 (int, sig->param_count);
4297 for (i = 0; i < sig->param_count; i++) {
4298 MonoType *t = sig->params [i];
4301 mono_mb_emit_ldarg (mb, 1);
4303 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4304 mono_mb_emit_byte (mb, CEE_ADD);
4308 mono_mb_emit_byte (mb, CEE_LDIND_I);
4309 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4310 * So to make this work we unbox it to a local variablee and push a reference to that.
4312 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4313 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4315 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4316 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4317 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4322 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4323 type = sig->params [i]->type;
4327 case MONO_TYPE_BOOLEAN:
4331 case MONO_TYPE_CHAR:
4340 mono_mb_emit_byte (mb, CEE_LDIND_I);
4341 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4343 case MONO_TYPE_STRING:
4344 case MONO_TYPE_CLASS:
4345 case MONO_TYPE_ARRAY:
4347 case MONO_TYPE_SZARRAY:
4348 case MONO_TYPE_OBJECT:
4349 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4351 case MONO_TYPE_GENERICINST:
4352 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4353 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4358 case MONO_TYPE_VALUETYPE:
4359 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4360 type = mono_class_enum_basetype (t->data.klass)->type;
4363 mono_mb_emit_byte (mb, CEE_LDIND_I);
4364 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4365 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4366 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4367 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4369 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4373 g_assert_not_reached ();
4378 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4379 } else if (need_direct_wrapper) {
4380 mono_mb_emit_op (mb, CEE_CALL, method);
4382 mono_mb_emit_ldarg (mb, 3);
4383 mono_mb_emit_calli (mb, callsig);
4386 if (sig->ret->byref) {
4388 g_assert_not_reached ();
4391 switch (sig->ret->type) {
4392 case MONO_TYPE_VOID:
4393 if (!method->string_ctor)
4394 mono_mb_emit_byte (mb, CEE_LDNULL);
4396 case MONO_TYPE_BOOLEAN:
4397 case MONO_TYPE_CHAR:
4410 case MONO_TYPE_VALUETYPE:
4411 case MONO_TYPE_TYPEDBYREF:
4412 case MONO_TYPE_GENERICINST:
4413 /* box value types */
4414 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4416 case MONO_TYPE_STRING:
4417 case MONO_TYPE_CLASS:
4418 case MONO_TYPE_ARRAY:
4419 case MONO_TYPE_SZARRAY:
4420 case MONO_TYPE_OBJECT:
4424 /* The result is an IntPtr */
4425 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4428 g_assert_not_reached ();
4431 mono_mb_emit_stloc (mb, 0);
4433 /* Convert back nullable-byref arguments */
4434 for (i = 0; i < sig->param_count; i++) {
4435 MonoType *t = sig->params [i];
4438 * Box the result and put it back into the array, the caller will have
4439 * to obtain it from there.
4441 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4442 mono_mb_emit_ldarg (mb, 1);
4443 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4444 mono_mb_emit_byte (mb, CEE_ADD);
4446 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4447 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4449 mono_mb_emit_byte (mb, CEE_STIND_REF);
4453 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4455 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4456 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4457 clause->try_len = mono_mb_get_label (mb);
4460 clause->data.filter_offset = mono_mb_get_label (mb);
4462 mono_mb_emit_byte (mb, CEE_POP);
4463 mono_mb_emit_byte (mb, CEE_LDARG_2);
4464 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4465 mono_mb_emit_byte (mb, CEE_PREFIX1);
4466 mono_mb_emit_byte (mb, CEE_CGT_UN);
4467 mono_mb_emit_byte (mb, CEE_PREFIX1);
4468 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4470 clause->handler_offset = mono_mb_get_label (mb);
4473 /* store exception */
4474 mono_mb_emit_stloc (mb, 1);
4476 mono_mb_emit_byte (mb, CEE_LDARG_2);
4477 mono_mb_emit_ldloc (mb, 1);
4478 mono_mb_emit_byte (mb, CEE_STIND_REF);
4480 mono_mb_emit_byte (mb, CEE_LDNULL);
4481 mono_mb_emit_stloc (mb, 0);
4483 mono_mb_emit_branch (mb, CEE_LEAVE);
4485 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4487 mono_mb_set_clauses (mb, 1, clause);
4490 mono_mb_patch_branch (mb, pos);
4491 mono_mb_emit_ldloc (mb, 0);
4492 mono_mb_emit_byte (mb, CEE_RET);
4494 g_free (tmp_nullable_locals);
4496 if (need_direct_wrapper) {
4497 mb->skip_visibility = 1;
4498 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4500 /* taken from mono_mb_create_and_cache */
4501 mono_marshal_lock ();
4502 res = g_hash_table_lookup (cache, callsig);
4503 mono_marshal_unlock ();
4505 /* Somebody may have created it before us */
4508 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4510 mono_marshal_lock ();
4511 res = g_hash_table_lookup (cache, callsig);
4514 g_hash_table_insert (cache, callsig, res);
4515 /* Can't insert it into wrapper_hash since the key is a signature */
4516 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4518 mono_free_method (newm);
4520 mono_marshal_unlock ();
4523 /* end mono_mb_create_and_cache */
4532 * mono_marshal_get_runtime_invoke_dynamic:
4534 * Return a method which can be used to invoke managed methods from native code
4536 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4537 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4538 * ARGS should point to an architecture specific structure containing
4539 * the arguments and space for the return value.
4540 * The other arguments are the same as for runtime_invoke (), except that
4541 * ARGS should contain the this argument too.
4542 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4543 * is only one copy of it, which is useful in full-aot.
4546 mono_marshal_get_runtime_invoke_dynamic (void)
4548 static MonoMethod *method;
4549 MonoMethodSignature *csig;
4550 MonoExceptionClause *clause;
4551 MonoMethodBuilder *mb;
4558 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4560 csig->ret = &mono_defaults.void_class->byval_arg;
4561 csig->params [0] = &mono_defaults.int_class->byval_arg;
4562 csig->params [1] = &mono_defaults.int_class->byval_arg;
4563 csig->params [2] = &mono_defaults.int_class->byval_arg;
4564 csig->params [3] = &mono_defaults.int_class->byval_arg;
4566 name = g_strdup ("runtime_invoke_dynamic");
4567 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4570 /* allocate local 0 (object) tmp */
4571 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4572 /* allocate local 1 (object) exc */
4573 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4575 /* cond set *exc to null */
4576 mono_mb_emit_byte (mb, CEE_LDARG_1);
4577 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4578 mono_mb_emit_byte (mb, 3);
4579 mono_mb_emit_byte (mb, CEE_LDARG_1);
4580 mono_mb_emit_byte (mb, CEE_LDNULL);
4581 mono_mb_emit_byte (mb, CEE_STIND_REF);
4583 emit_thread_force_interrupt_checkpoint (mb);
4585 mono_mb_emit_byte (mb, CEE_LDARG_0);
4586 mono_mb_emit_byte (mb, CEE_LDARG_2);
4587 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4588 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4590 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4592 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4593 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4594 clause->try_len = mono_mb_get_label (mb);
4597 clause->data.filter_offset = mono_mb_get_label (mb);
4599 mono_mb_emit_byte (mb, CEE_POP);
4600 mono_mb_emit_byte (mb, CEE_LDARG_1);
4601 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4602 mono_mb_emit_byte (mb, CEE_PREFIX1);
4603 mono_mb_emit_byte (mb, CEE_CGT_UN);
4604 mono_mb_emit_byte (mb, CEE_PREFIX1);
4605 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4607 clause->handler_offset = mono_mb_get_label (mb);
4610 /* store exception */
4611 mono_mb_emit_stloc (mb, 1);
4613 mono_mb_emit_byte (mb, CEE_LDARG_1);
4614 mono_mb_emit_ldloc (mb, 1);
4615 mono_mb_emit_byte (mb, CEE_STIND_REF);
4617 mono_mb_emit_byte (mb, CEE_LDNULL);
4618 mono_mb_emit_stloc (mb, 0);
4620 /* Check for the abort exception */
4621 mono_mb_emit_ldloc (mb, 1);
4622 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4623 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4625 /* Delay the abort exception */
4626 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4628 mono_mb_patch_short_branch (mb, posna);
4629 mono_mb_emit_branch (mb, CEE_LEAVE);
4631 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4633 mono_mb_set_clauses (mb, 1, clause);
4636 mono_mb_patch_branch (mb, pos);
4637 //mono_mb_emit_ldloc (mb, 0);
4638 mono_mb_emit_byte (mb, CEE_RET);
4640 mono_loader_lock ();
4641 /* double-checked locking */
4643 method = mono_mb_create_method (mb, csig, 16);
4645 mono_loader_unlock ();
4653 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4655 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4656 klass->name_space, klass->name);
4658 mono_mb_emit_exception_marshal_directive (mb, msg);
4662 * mono_marshal_get_ldfld_remote_wrapper:
4663 * @klass: The return type
4665 * This method generates a wrapper for calling mono_load_remote_field_new.
4666 * The return type is ignored for now, as mono_load_remote_field_new () always
4667 * returns an object. In the future, to optimize some codepaths, we might
4668 * call a different function that takes a pointer to a valuetype, instead.
4671 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4673 MonoMethodSignature *sig, *csig;
4674 MonoMethodBuilder *mb;
4676 static MonoMethod* cached = NULL;
4678 mono_marshal_lock ();
4680 mono_marshal_unlock ();
4683 mono_marshal_unlock ();
4685 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4687 mb->method->save_lmf = 1;
4689 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4690 sig->params [0] = &mono_defaults.object_class->byval_arg;
4691 sig->params [1] = &mono_defaults.int_class->byval_arg;
4692 sig->params [2] = &mono_defaults.int_class->byval_arg;
4693 sig->ret = &mono_defaults.object_class->byval_arg;
4695 mono_mb_emit_ldarg (mb, 0);
4696 mono_mb_emit_ldarg (mb, 1);
4697 mono_mb_emit_ldarg (mb, 2);
4699 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4700 csig->params [0] = &mono_defaults.object_class->byval_arg;
4701 csig->params [1] = &mono_defaults.int_class->byval_arg;
4702 csig->params [2] = &mono_defaults.int_class->byval_arg;
4703 csig->ret = &mono_defaults.object_class->byval_arg;
4706 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4707 emit_thread_interrupt_checkpoint (mb);
4709 mono_mb_emit_byte (mb, CEE_RET);
4711 mono_marshal_lock ();
4713 mono_marshal_unlock ();
4716 newm = mono_mb_create_method (mb, sig, 4);
4717 mono_marshal_lock ();
4722 mono_marshal_unlock ();
4724 mono_marshal_unlock ();
4725 mono_free_method (newm);
4734 * mono_marshal_get_ldfld_wrapper:
4735 * @type: the type of the field
4737 * This method generates a function which can be use to load a field with type
4738 * @type from an object. The generated function has the following signature:
4739 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4742 mono_marshal_get_ldfld_wrapper (MonoType *type)
4744 MonoMethodSignature *sig;
4745 MonoMethodBuilder *mb;
4750 int t, pos0, pos1 = 0;
4752 type = mono_type_get_underlying_type (type);
4757 if (type->type == MONO_TYPE_SZARRAY) {
4758 klass = mono_defaults.array_class;
4759 } else if (type->type == MONO_TYPE_VALUETYPE) {
4760 klass = type->data.klass;
4761 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4762 klass = mono_defaults.object_class;
4763 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4764 klass = mono_defaults.int_class;
4765 } else if (t == MONO_TYPE_GENERICINST) {
4766 if (mono_type_generic_inst_is_valuetype (type))
4767 klass = mono_class_from_mono_type (type);
4769 klass = mono_defaults.object_class;
4771 klass = mono_class_from_mono_type (type);
4774 klass = mono_defaults.int_class;
4777 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4778 if ((res = mono_marshal_find_in_cache (cache, klass)))
4781 /* we add the %p pointer value of klass because class names are not unique */
4782 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4783 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4786 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4787 sig->params [0] = &mono_defaults.object_class->byval_arg;
4788 sig->params [1] = &mono_defaults.int_class->byval_arg;
4789 sig->params [2] = &mono_defaults.int_class->byval_arg;
4790 sig->params [3] = &mono_defaults.int_class->byval_arg;
4791 sig->ret = &klass->byval_arg;
4793 mono_mb_emit_ldarg (mb, 0);
4794 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4796 mono_mb_emit_ldarg (mb, 0);
4797 mono_mb_emit_ldarg (mb, 1);
4798 mono_mb_emit_ldarg (mb, 2);
4800 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4803 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4804 csig->params [0] = &mono_defaults.object_class->byval_arg;
4805 csig->params [1] = &mono_defaults.int_class->byval_arg;
4806 csig->params [2] = &mono_defaults.int_class->byval_arg;
4807 csig->ret = &klass->this_arg;
4810 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4811 emit_thread_interrupt_checkpoint (mb);
4814 if (klass->valuetype) {
4815 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4816 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4818 mono_mb_emit_byte (mb, CEE_RET);
4822 mono_mb_patch_branch (mb, pos0);
4824 mono_mb_emit_ldarg (mb, 0);
4825 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4826 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4827 mono_mb_emit_ldarg (mb, 3);
4828 mono_mb_emit_byte (mb, CEE_ADD);
4830 if (klass->valuetype)
4831 mono_mb_patch_branch (mb, pos1);
4836 case MONO_TYPE_BOOLEAN:
4837 case MONO_TYPE_CHAR:
4846 case MONO_TYPE_ARRAY:
4847 case MONO_TYPE_SZARRAY:
4848 case MONO_TYPE_OBJECT:
4849 case MONO_TYPE_CLASS:
4850 case MONO_TYPE_STRING:
4854 case MONO_TYPE_FNPTR:
4855 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4857 case MONO_TYPE_VALUETYPE:
4858 g_assert (!klass->enumtype);
4859 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4861 case MONO_TYPE_GENERICINST:
4862 if (mono_type_generic_inst_is_valuetype (type)) {
4863 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4865 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4869 g_warning ("type %x not implemented", type->type);
4870 g_assert_not_reached ();
4873 mono_mb_emit_byte (mb, CEE_RET);
4875 res = mono_mb_create_and_cache (cache, klass,
4876 mb, sig, sig->param_count + 16);
4883 * mono_marshal_get_ldflda_wrapper:
4884 * @type: the type of the field
4886 * This method generates a function which can be used to load a field address
4887 * from an object. The generated function has the following signature:
4888 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4891 mono_marshal_get_ldflda_wrapper (MonoType *type)
4893 MonoMethodSignature *sig;
4894 MonoMethodBuilder *mb;
4899 int t, pos0, pos1, pos2, pos3;
4901 type = mono_type_get_underlying_type (type);
4905 if (type->type == MONO_TYPE_SZARRAY) {
4906 klass = mono_defaults.array_class;
4907 } else if (type->type == MONO_TYPE_VALUETYPE) {
4908 klass = type->data.klass;
4909 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4910 t == MONO_TYPE_CLASS) {
4911 klass = mono_defaults.object_class;
4912 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4913 klass = mono_defaults.int_class;
4914 } else if (t == MONO_TYPE_GENERICINST) {
4915 if (mono_type_generic_inst_is_valuetype (type))
4916 klass = mono_class_from_mono_type (type);
4918 klass = mono_defaults.object_class;
4920 klass = mono_class_from_mono_type (type);
4923 klass = mono_defaults.int_class;
4926 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4927 if ((res = mono_marshal_find_in_cache (cache, klass)))
4930 /* we add the %p pointer value of klass because class names are not unique */
4931 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4932 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4935 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4936 sig->params [0] = &mono_defaults.object_class->byval_arg;
4937 sig->params [1] = &mono_defaults.int_class->byval_arg;
4938 sig->params [2] = &mono_defaults.int_class->byval_arg;
4939 sig->params [3] = &mono_defaults.int_class->byval_arg;
4940 sig->ret = &mono_defaults.int_class->byval_arg;
4942 /* if typeof (this) != transparent_proxy goto pos0 */
4943 mono_mb_emit_ldarg (mb, 0);
4944 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4946 /* if same_appdomain goto pos1 */
4947 mono_mb_emit_ldarg (mb, 0);
4948 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4950 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4952 /* same app domain */
4953 mono_mb_patch_branch (mb, pos1);
4955 /* if typeof (this) != contextbound goto pos2 */
4956 mono_mb_emit_ldarg (mb, 0);
4957 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4959 /* if this->rp->context == mono_context_get goto pos3 */
4960 mono_mb_emit_ldarg (mb, 0);
4961 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4962 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4963 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4964 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4965 mono_mb_emit_icall (mb, mono_context_get);
4966 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4968 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4970 mono_mb_patch_branch (mb, pos2);
4971 mono_mb_patch_branch (mb, pos3);
4973 /* return the address of the field from this->rp->unwrapped_server */
4974 mono_mb_emit_ldarg (mb, 0);
4975 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4976 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4977 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4978 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4979 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4980 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4981 mono_mb_emit_ldarg (mb, 3);
4982 mono_mb_emit_byte (mb, CEE_ADD);
4983 mono_mb_emit_byte (mb, CEE_RET);
4985 /* not a proxy: return the address of the field directly */
4986 mono_mb_patch_branch (mb, pos0);
4988 mono_mb_emit_ldarg (mb, 0);
4989 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4990 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4991 mono_mb_emit_ldarg (mb, 3);
4992 mono_mb_emit_byte (mb, CEE_ADD);
4994 mono_mb_emit_byte (mb, CEE_RET);
4996 res = mono_mb_create_and_cache (cache, klass,
4997 mb, sig, sig->param_count + 16);
5004 * mono_marshal_get_stfld_remote_wrapper:
5005 * klass: The type of the field
5007 * This function generates a wrapper for calling mono_store_remote_field_new
5008 * with the appropriate signature.
5009 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5010 * klass argument anymore.
5013 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5015 MonoMethodSignature *sig, *csig;
5016 MonoMethodBuilder *mb;
5018 static MonoMethod *cached = NULL;
5020 mono_marshal_lock ();
5022 mono_marshal_unlock ();
5025 mono_marshal_unlock ();
5027 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5029 mb->method->save_lmf = 1;
5031 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5032 sig->params [0] = &mono_defaults.object_class->byval_arg;
5033 sig->params [1] = &mono_defaults.int_class->byval_arg;
5034 sig->params [2] = &mono_defaults.int_class->byval_arg;
5035 sig->params [3] = &mono_defaults.object_class->byval_arg;
5036 sig->ret = &mono_defaults.void_class->byval_arg;
5038 mono_mb_emit_ldarg (mb, 0);
5039 mono_mb_emit_ldarg (mb, 1);
5040 mono_mb_emit_ldarg (mb, 2);
5041 mono_mb_emit_ldarg (mb, 3);
5043 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5044 csig->params [0] = &mono_defaults.object_class->byval_arg;
5045 csig->params [1] = &mono_defaults.int_class->byval_arg;
5046 csig->params [2] = &mono_defaults.int_class->byval_arg;
5047 csig->params [3] = &mono_defaults.object_class->byval_arg;
5048 csig->ret = &mono_defaults.void_class->byval_arg;
5051 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5052 emit_thread_interrupt_checkpoint (mb);
5054 mono_mb_emit_byte (mb, CEE_RET);
5056 mono_marshal_lock ();
5058 mono_marshal_unlock ();
5061 newm = mono_mb_create_method (mb, sig, 6);
5062 mono_marshal_lock ();
5067 mono_marshal_unlock ();
5069 mono_marshal_unlock ();
5070 mono_free_method (newm);
5079 * mono_marshal_get_stfld_wrapper:
5080 * @type: the type of the field
5082 * This method generates a function which can be use to store a field with type
5083 * @type. The generated function has the following signature:
5084 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5087 mono_marshal_get_stfld_wrapper (MonoType *type)
5089 MonoMethodSignature *sig;
5090 MonoMethodBuilder *mb;
5097 type = mono_type_get_underlying_type (type);
5101 if (type->type == MONO_TYPE_SZARRAY) {
5102 klass = mono_defaults.array_class;
5103 } else if (type->type == MONO_TYPE_VALUETYPE) {
5104 klass = type->data.klass;
5105 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5106 klass = mono_defaults.object_class;
5107 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5108 klass = mono_defaults.int_class;
5109 } else if (t == MONO_TYPE_GENERICINST) {
5110 if (mono_type_generic_inst_is_valuetype (type))
5111 klass = mono_class_from_mono_type (type);
5113 klass = mono_defaults.object_class;
5115 klass = mono_class_from_mono_type (type);
5118 klass = mono_defaults.int_class;
5121 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5122 if ((res = mono_marshal_find_in_cache (cache, klass)))
5125 /* we add the %p pointer value of klass because class names are not unique */
5126 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5127 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5130 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5131 sig->params [0] = &mono_defaults.object_class->byval_arg;
5132 sig->params [1] = &mono_defaults.int_class->byval_arg;
5133 sig->params [2] = &mono_defaults.int_class->byval_arg;
5134 sig->params [3] = &mono_defaults.int_class->byval_arg;
5135 sig->params [4] = &klass->byval_arg;
5136 sig->ret = &mono_defaults.void_class->byval_arg;
5138 mono_mb_emit_ldarg (mb, 0);
5139 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5141 mono_mb_emit_ldarg (mb, 0);
5142 mono_mb_emit_ldarg (mb, 1);
5143 mono_mb_emit_ldarg (mb, 2);
5144 mono_mb_emit_ldarg (mb, 4);
5145 if (klass->valuetype)
5146 mono_mb_emit_op (mb, CEE_BOX, klass);
5148 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5150 mono_mb_emit_byte (mb, CEE_RET);
5152 mono_mb_patch_branch (mb, pos);
5154 mono_mb_emit_ldarg (mb, 0);
5155 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5156 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5157 mono_mb_emit_ldarg (mb, 3);
5158 mono_mb_emit_byte (mb, CEE_ADD);
5159 mono_mb_emit_ldarg (mb, 4);
5164 case MONO_TYPE_BOOLEAN:
5165 case MONO_TYPE_CHAR:
5174 case MONO_TYPE_ARRAY:
5175 case MONO_TYPE_SZARRAY:
5176 case MONO_TYPE_OBJECT:
5177 case MONO_TYPE_CLASS:
5178 case MONO_TYPE_STRING:
5182 case MONO_TYPE_FNPTR:
5183 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5185 case MONO_TYPE_VALUETYPE:
5186 g_assert (!klass->enumtype);
5187 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5189 case MONO_TYPE_GENERICINST:
5190 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5193 g_warning ("type %x not implemented", type->type);
5194 g_assert_not_reached ();
5197 mono_mb_emit_byte (mb, CEE_RET);
5199 res = mono_mb_create_and_cache (cache, klass,
5200 mb, sig, sig->param_count + 16);
5207 * generates IL code for the icall wrapper (the generated method
5208 * calls the unmanaged code in func)
5211 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5213 MonoMethodSignature *csig, *csig2;
5214 MonoMethodBuilder *mb;
5218 g_assert (sig->pinvoke);
5220 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5222 mb->method->save_lmf = 1;
5224 /* Add an explicit this argument */
5226 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5228 csig2 = signature_dup (mono_defaults.corlib, sig);
5231 mono_mb_emit_byte (mb, CEE_LDARG_0);
5233 for (i = 0; i < sig->param_count; i++)
5234 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5236 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5237 if (check_exceptions)
5238 emit_thread_interrupt_checkpoint (mb);
5239 mono_mb_emit_byte (mb, CEE_RET);
5241 csig = signature_dup (mono_defaults.corlib, sig);
5243 if (csig->call_convention == MONO_CALL_VARARG)
5244 csig->call_convention = 0;
5246 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5253 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5254 MonoMarshalSpec *spec,
5255 int conv_arg, MonoType **conv_arg_type,
5256 MarshalAction action)
5260 static MonoClass *ICustomMarshaler = NULL;
5261 static MonoMethod *cleanup_native, *cleanup_managed;
5262 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5263 MonoMethod *get_instance;
5264 MonoMethodBuilder *mb = m->mb;
5265 char *exception_msg = NULL;
5269 if (!ICustomMarshaler) {
5270 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5271 g_assert (ICustomMarshaler);
5273 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5274 g_assert (cleanup_native);
5275 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5276 g_assert (cleanup_managed);
5277 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5278 g_assert (marshal_managed_to_native);
5279 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5280 g_assert (marshal_native_to_managed);
5283 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5284 g_assert (mtype != NULL);
5285 mklass = mono_class_from_mono_type (mtype);
5286 g_assert (mklass != NULL);
5288 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5289 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5291 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5293 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5294 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5295 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5296 (get_sig->params [0]->type != MONO_TYPE_STRING))
5297 get_instance = NULL;
5301 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);
5303 /* Throw exception and emit compensation code if neccesary */
5304 if (exception_msg) {
5306 case MARSHAL_ACTION_CONV_IN:
5307 case MARSHAL_ACTION_CONV_RESULT:
5308 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5309 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5310 mono_mb_emit_byte (mb, CEE_POP);
5312 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5313 g_free (exception_msg);
5316 case MARSHAL_ACTION_PUSH:
5317 mono_mb_emit_byte (mb, CEE_LDNULL);
5325 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5326 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5329 case MARSHAL_ACTION_CONV_IN:
5331 case MONO_TYPE_CLASS:
5332 case MONO_TYPE_OBJECT:
5333 case MONO_TYPE_STRING:
5334 case MONO_TYPE_ARRAY:
5335 case MONO_TYPE_SZARRAY:
5336 case MONO_TYPE_VALUETYPE:
5340 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5341 g_assert_not_reached ();
5345 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5347 mono_mb_emit_byte (mb, CEE_LDNULL);
5348 mono_mb_emit_stloc (mb, conv_arg);
5350 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5353 /* Minic MS.NET behavior */
5354 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5357 /* Check for null */
5358 mono_mb_emit_ldarg (mb, argnum);
5360 mono_mb_emit_byte (mb, CEE_LDIND_I);
5361 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5363 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5365 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5367 mono_mb_emit_ldarg (mb, argnum);
5369 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5371 if (t->type == MONO_TYPE_VALUETYPE) {
5373 * Since we can't determine the type of the argument, we
5374 * will assume the unmanaged function takes a pointer.
5376 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5378 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5381 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5382 mono_mb_emit_stloc (mb, conv_arg);
5384 mono_mb_patch_branch (mb, pos2);
5387 case MARSHAL_ACTION_CONV_OUT:
5388 /* Check for null */
5389 mono_mb_emit_ldloc (mb, conv_arg);
5390 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5393 mono_mb_emit_ldarg (mb, argnum);
5395 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5397 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5399 mono_mb_emit_ldloc (mb, conv_arg);
5400 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5401 mono_mb_emit_byte (mb, CEE_STIND_REF);
5402 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5403 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5405 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5407 mono_mb_emit_ldloc (mb, conv_arg);
5408 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5410 /* We have nowhere to store the result */
5411 mono_mb_emit_byte (mb, CEE_POP);
5414 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5416 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5418 mono_mb_emit_ldloc (mb, conv_arg);
5420 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5422 mono_mb_patch_branch (mb, pos2);
5425 case MARSHAL_ACTION_PUSH:
5427 mono_mb_emit_ldloc_addr (mb, conv_arg);
5429 mono_mb_emit_ldloc (mb, conv_arg);
5432 case MARSHAL_ACTION_CONV_RESULT:
5433 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5435 mono_mb_emit_stloc (mb, 3);
5437 mono_mb_emit_ldloc (mb, 3);
5438 mono_mb_emit_stloc (mb, loc1);
5440 /* Check for null */
5441 mono_mb_emit_ldloc (mb, 3);
5442 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5444 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5446 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5447 mono_mb_emit_byte (mb, CEE_DUP);
5449 mono_mb_emit_ldloc (mb, 3);
5450 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5451 mono_mb_emit_stloc (mb, 3);
5453 mono_mb_emit_ldloc (mb, loc1);
5454 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5456 mono_mb_patch_branch (mb, pos2);
5459 case MARSHAL_ACTION_MANAGED_CONV_IN:
5460 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5462 mono_mb_emit_byte (mb, CEE_LDNULL);
5463 mono_mb_emit_stloc (mb, conv_arg);
5465 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5468 /* Check for null */
5469 mono_mb_emit_ldarg (mb, argnum);
5471 mono_mb_emit_byte (mb, CEE_LDIND_I);
5472 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5474 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5475 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5477 mono_mb_emit_ldarg (mb, argnum);
5479 mono_mb_emit_byte (mb, CEE_LDIND_I);
5481 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5482 mono_mb_emit_stloc (mb, conv_arg);
5484 mono_mb_patch_branch (mb, pos2);
5487 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5488 g_assert (!t->byref);
5490 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5492 mono_mb_emit_stloc (mb, 3);
5494 mono_mb_emit_ldloc (mb, 3);
5495 mono_mb_emit_stloc (mb, loc1);
5497 /* Check for null */
5498 mono_mb_emit_ldloc (mb, 3);
5499 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5501 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5502 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5503 mono_mb_emit_byte (mb, CEE_DUP);
5505 mono_mb_emit_ldloc (mb, 3);
5506 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5507 mono_mb_emit_stloc (mb, 3);
5509 mono_mb_emit_ldloc (mb, loc1);
5510 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5512 mono_mb_patch_branch (mb, pos2);
5515 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5517 /* Check for null */
5518 mono_mb_emit_ldloc (mb, conv_arg);
5519 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5522 mono_mb_emit_ldarg (mb, argnum);
5524 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5526 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5528 mono_mb_emit_ldloc (mb, conv_arg);
5529 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5530 mono_mb_emit_byte (mb, CEE_STIND_I);
5533 /* Call CleanUpManagedData */
5534 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5536 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5538 mono_mb_emit_ldloc (mb, conv_arg);
5539 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5541 mono_mb_patch_branch (mb, pos2);
5545 g_assert_not_reached ();
5552 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5553 MonoMarshalSpec *spec,
5554 int conv_arg, MonoType **conv_arg_type,
5555 MarshalAction action)
5557 MonoMethodBuilder *mb = m->mb;
5560 case MARSHAL_ACTION_CONV_IN: {
5561 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5563 g_assert (t->type == MONO_TYPE_OBJECT);
5564 g_assert (!t->byref);
5566 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5567 mono_mb_emit_ldarg (mb, argnum);
5568 mono_mb_emit_icon (mb, encoding);
5569 mono_mb_emit_icon (mb, t->attrs);
5570 mono_mb_emit_icall (mb, mono_marshal_asany);
5571 mono_mb_emit_stloc (mb, conv_arg);
5575 case MARSHAL_ACTION_PUSH:
5576 mono_mb_emit_ldloc (mb, conv_arg);
5579 case MARSHAL_ACTION_CONV_OUT: {
5580 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5582 mono_mb_emit_ldarg (mb, argnum);
5583 mono_mb_emit_ldloc (mb, conv_arg);
5584 mono_mb_emit_icon (mb, encoding);
5585 mono_mb_emit_icon (mb, t->attrs);
5586 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5591 g_assert_not_reached ();
5598 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5599 MonoMarshalSpec *spec,
5600 int conv_arg, MonoType **conv_arg_type,
5601 MarshalAction action)
5603 MonoMethodBuilder *mb = m->mb;
5604 MonoClass *klass, *date_time_class;
5607 klass = mono_class_from_mono_type (t);
5609 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5612 case MARSHAL_ACTION_CONV_IN:
5613 if (klass == date_time_class) {
5614 /* Convert it to an OLE DATE type */
5615 static MonoMethod *to_oadate;
5618 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5619 g_assert (to_oadate);
5621 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5624 mono_mb_emit_ldarg (mb, argnum);
5625 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5628 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5630 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5632 mono_mb_emit_ldarg_addr (mb, argnum);
5633 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5634 mono_mb_emit_stloc (mb, conv_arg);
5638 mono_mb_patch_branch (mb, pos);
5642 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5643 klass->blittable || klass->enumtype)
5646 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5648 /* store the address of the source into local variable 0 */
5650 mono_mb_emit_ldarg (mb, argnum);
5652 mono_mb_emit_ldarg_addr (mb, argnum);
5654 mono_mb_emit_stloc (mb, 0);
5656 /* allocate space for the native struct and
5657 * store the address into local variable 1 (dest) */
5658 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5659 mono_mb_emit_byte (mb, CEE_PREFIX1);
5660 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5661 mono_mb_emit_stloc (mb, conv_arg);
5664 mono_mb_emit_ldloc (mb, 0);
5665 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5668 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5670 mono_mb_emit_ldloc (mb, conv_arg);
5671 mono_mb_emit_stloc (mb, 1);
5673 /* emit valuetype conversion code */
5674 emit_struct_conv (mb, klass, FALSE);
5678 mono_mb_patch_branch (mb, pos);
5681 case MARSHAL_ACTION_PUSH:
5682 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5684 g_assert (!t->byref);
5686 /* Have to change the signature since the vtype is passed byref */
5687 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5689 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5690 klass->blittable || klass->enumtype)
5691 mono_mb_emit_ldarg_addr (mb, argnum);
5693 mono_mb_emit_ldloc (mb, conv_arg);
5697 if (klass == date_time_class) {
5699 mono_mb_emit_ldloc_addr (mb, conv_arg);
5701 mono_mb_emit_ldloc (mb, conv_arg);
5705 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5706 klass->blittable || klass->enumtype) {
5707 mono_mb_emit_ldarg (mb, argnum);
5710 mono_mb_emit_ldloc (mb, conv_arg);
5712 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5713 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5717 case MARSHAL_ACTION_CONV_OUT:
5718 if (klass == date_time_class) {
5719 /* Convert from an OLE DATE type */
5720 static MonoMethod *from_oadate;
5725 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5727 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5728 g_assert (from_oadate);
5730 mono_mb_emit_ldarg (mb, argnum);
5731 mono_mb_emit_ldloc (mb, conv_arg);
5732 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5733 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5738 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5739 klass->blittable || klass->enumtype)
5743 /* dst = argument */
5744 mono_mb_emit_ldarg (mb, argnum);
5745 mono_mb_emit_stloc (mb, 1);
5747 mono_mb_emit_ldloc (mb, 1);
5748 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5750 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5751 /* src = tmp_locals [i] */
5752 mono_mb_emit_ldloc (mb, conv_arg);
5753 mono_mb_emit_stloc (mb, 0);
5755 /* emit valuetype conversion code */
5756 emit_struct_conv (mb, klass, TRUE);
5760 emit_struct_free (mb, klass, conv_arg);
5763 mono_mb_patch_branch (mb, pos);
5766 case MARSHAL_ACTION_CONV_RESULT:
5767 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5769 mono_mb_emit_stloc (mb, 3);
5773 /* load pointer to returned value type */
5774 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5775 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5776 /* store the address of the source into local variable 0 */
5777 mono_mb_emit_stloc (mb, 0);
5779 mono_mb_emit_ldloc_addr (mb, 3);
5780 mono_mb_emit_stloc (mb, 1);
5782 /* emit valuetype conversion code */
5783 emit_struct_conv (mb, klass, TRUE);
5786 case MARSHAL_ACTION_MANAGED_CONV_IN:
5787 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5788 klass->blittable || klass->enumtype) {
5793 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5795 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5799 mono_mb_emit_ldarg (mb, argnum);
5801 mono_mb_emit_ldarg_addr (mb, argnum);
5802 mono_mb_emit_stloc (mb, 0);
5805 mono_mb_emit_ldloc (mb, 0);
5806 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5809 mono_mb_emit_ldloc_addr (mb, conv_arg);
5810 mono_mb_emit_stloc (mb, 1);
5812 /* emit valuetype conversion code */
5813 emit_struct_conv (mb, klass, TRUE);
5816 mono_mb_patch_branch (mb, pos);
5819 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5820 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5821 klass->blittable || klass->enumtype) {
5825 /* Check for null */
5826 mono_mb_emit_ldarg (mb, argnum);
5827 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5830 mono_mb_emit_ldloc_addr (mb, conv_arg);
5831 mono_mb_emit_stloc (mb, 0);
5834 mono_mb_emit_ldarg (mb, argnum);
5835 mono_mb_emit_stloc (mb, 1);
5837 /* emit valuetype conversion code */
5838 emit_struct_conv (mb, klass, FALSE);
5840 mono_mb_patch_branch (mb, pos2);
5843 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5844 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5845 klass->blittable || klass->enumtype) {
5846 mono_mb_emit_stloc (mb, 3);
5851 /* load pointer to returned value type */
5852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5853 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5855 /* store the address of the source into local variable 0 */
5856 mono_mb_emit_stloc (mb, 0);
5857 /* allocate space for the native struct and
5858 * store the address into dst_ptr */
5859 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5860 m->retobj_class = klass;
5861 g_assert (m->retobj_var);
5862 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5863 mono_mb_emit_byte (mb, CEE_CONV_I);
5864 mono_mb_emit_icall (mb, mono_marshal_alloc);
5865 mono_mb_emit_stloc (mb, 1);
5866 mono_mb_emit_ldloc (mb, 1);
5867 mono_mb_emit_stloc (mb, m->retobj_var);
5869 /* emit valuetype conversion code */
5870 emit_struct_conv (mb, klass, FALSE);
5874 g_assert_not_reached ();
5881 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5882 MonoMarshalSpec *spec,
5883 int conv_arg, MonoType **conv_arg_type,
5884 MarshalAction action)
5886 MonoMethodBuilder *mb = m->mb;
5887 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5888 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5892 case MARSHAL_ACTION_CONV_IN:
5893 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5894 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5897 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5900 mono_mb_emit_ldarg (mb, argnum);
5901 mono_mb_emit_byte (mb, CEE_LDIND_I);
5903 mono_mb_emit_ldarg (mb, argnum);
5907 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5908 MonoException *exc = mono_get_exception_not_implemented (msg);
5909 g_warning ("%s", msg);
5911 mono_raise_exception (exc);
5914 mono_mb_emit_icall (mb, conv_to_icall (conv));
5916 mono_mb_emit_stloc (mb, conv_arg);
5919 case MARSHAL_ACTION_CONV_OUT:
5920 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5922 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5923 mono_mb_emit_exception_marshal_directive (mb, msg);
5927 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5928 mono_mb_emit_ldarg (mb, argnum);
5929 mono_mb_emit_ldloc (mb, conv_arg);
5930 mono_mb_emit_icall (mb, conv_to_icall (conv));
5931 mono_mb_emit_byte (mb, CEE_STIND_REF);
5934 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5935 mono_mb_emit_ldloc (mb, conv_arg);
5936 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5937 mono_mb_emit_icall (mb, mono_free_bstr);
5939 mono_mb_emit_icall (mb, mono_marshal_free);
5943 case MARSHAL_ACTION_PUSH:
5945 mono_mb_emit_ldloc_addr (mb, conv_arg);
5947 mono_mb_emit_ldloc (mb, conv_arg);
5950 case MARSHAL_ACTION_CONV_RESULT:
5951 mono_mb_emit_stloc (mb, 0);
5953 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5955 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5956 mono_mb_emit_exception_marshal_directive (mb, msg);
5960 mono_mb_emit_ldloc (mb, 0);
5961 mono_mb_emit_icall (mb, conv_to_icall (conv));
5962 mono_mb_emit_stloc (mb, 3);
5964 /* free the string */
5965 mono_mb_emit_ldloc (mb, 0);
5966 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5967 mono_mb_emit_icall (mb, mono_free_bstr);
5969 mono_mb_emit_icall (mb, mono_marshal_free);
5972 case MARSHAL_ACTION_MANAGED_CONV_IN:
5973 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5975 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5977 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5979 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5980 mono_mb_emit_exception_marshal_directive (mb, msg);
5984 mono_mb_emit_ldarg (mb, argnum);
5986 mono_mb_emit_byte (mb, CEE_LDIND_I);
5987 mono_mb_emit_icall (mb, conv_to_icall (conv));
5988 mono_mb_emit_stloc (mb, conv_arg);
5991 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5994 mono_mb_emit_ldarg (mb, argnum);
5995 mono_mb_emit_ldloc (mb, conv_arg);
5996 mono_mb_emit_icall (mb, conv_to_icall (conv));
5997 mono_mb_emit_byte (mb, CEE_STIND_I);
6002 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6003 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6004 /* We need to make a copy so the caller is able to free it */
6005 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6007 mono_mb_emit_icall (mb, conv_to_icall (conv));
6008 mono_mb_emit_stloc (mb, 3);
6012 g_assert_not_reached ();
6019 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6020 MonoMarshalSpec *spec, int conv_arg,
6021 MonoType **conv_arg_type, MarshalAction action)
6023 MonoMethodBuilder *mb = m->mb;
6026 case MARSHAL_ACTION_CONV_IN: {
6027 MonoType *intptr_type;
6028 int dar_release_slot, pos;
6030 intptr_type = &mono_defaults.int_class->byval_arg;
6031 conv_arg = mono_mb_add_local (mb, intptr_type);
6032 *conv_arg_type = intptr_type;
6034 if (!sh_dangerous_add_ref)
6035 init_safe_handle ();
6037 mono_mb_emit_ldarg (mb, argnum);
6038 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6039 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6041 mono_mb_patch_branch (mb, pos);
6044 * My tests in show that ref SafeHandles are not really
6045 * passed as ref objects. Instead a NULL is passed as the
6048 mono_mb_emit_icon (mb, 0);
6049 mono_mb_emit_stloc (mb, conv_arg);
6053 /* Create local to hold the ref parameter to DangerousAddRef */
6054 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6056 /* set release = false; */
6057 mono_mb_emit_icon (mb, 0);
6058 mono_mb_emit_stloc (mb, dar_release_slot);
6060 /* safehandle.DangerousAddRef (ref release) */
6061 mono_mb_emit_ldarg (mb, argnum);
6062 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6063 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6065 /* Pull the handle field from SafeHandle */
6066 mono_mb_emit_ldarg (mb, argnum);
6067 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6068 mono_mb_emit_byte (mb, CEE_LDIND_I);
6069 mono_mb_emit_stloc (mb, conv_arg);
6074 case MARSHAL_ACTION_PUSH:
6076 mono_mb_emit_ldloc_addr (mb, conv_arg);
6078 mono_mb_emit_ldloc (mb, conv_arg);
6081 case MARSHAL_ACTION_CONV_OUT: {
6082 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6083 int dar_release_slot = conv_arg + 1;
6086 if (!sh_dangerous_release)
6087 init_safe_handle ();
6093 * My tests indicate that ref SafeHandles parameters are not actually
6094 * passed by ref, but instead a new Handle is created regardless of
6095 * whether a change happens in the unmanaged side.
6097 * Also, the Handle is created before calling into unmanaged code,
6098 * but we do not support that mechanism (getting to the original
6099 * handle) and it makes no difference where we create this
6101 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6103 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6106 /* refval = new SafeHandleDerived ()*/
6107 mono_mb_emit_ldarg (mb, argnum);
6108 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6109 mono_mb_emit_byte (mb, CEE_STIND_REF);
6111 /* refval.handle = returned_handle */
6112 mono_mb_emit_ldarg (mb, argnum);
6113 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6114 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6115 mono_mb_emit_ldloc (mb, conv_arg);
6116 mono_mb_emit_byte (mb, CEE_STIND_I);
6118 mono_mb_emit_ldloc (mb, dar_release_slot);
6119 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6120 mono_mb_emit_ldarg (mb, argnum);
6121 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6122 mono_mb_patch_branch (mb, label_next);
6127 case MARSHAL_ACTION_CONV_RESULT: {
6128 MonoMethod *ctor = NULL;
6129 int intptr_handle_slot;
6131 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6132 mono_mb_emit_byte (mb, CEE_POP);
6133 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6137 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6139 mono_mb_emit_byte (mb, CEE_POP);
6140 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6143 /* Store the IntPtr results into a local */
6144 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6145 mono_mb_emit_stloc (mb, intptr_handle_slot);
6147 /* Create return value */
6148 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6149 mono_mb_emit_stloc (mb, 3);
6151 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6152 mono_mb_emit_ldloc (mb, 3);
6153 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6154 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6155 mono_mb_emit_byte (mb, CEE_STIND_I);
6159 case MARSHAL_ACTION_MANAGED_CONV_IN:
6160 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6163 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6164 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6167 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6168 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6171 printf ("Unhandled case for MarshalAction: %d\n", action);
6178 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6179 MonoMarshalSpec *spec, int conv_arg,
6180 MonoType **conv_arg_type, MarshalAction action)
6182 MonoMethodBuilder *mb = m->mb;
6185 case MARSHAL_ACTION_CONV_IN: {
6186 MonoType *intptr_type;
6188 intptr_type = &mono_defaults.int_class->byval_arg;
6189 conv_arg = mono_mb_add_local (mb, intptr_type);
6190 *conv_arg_type = intptr_type;
6193 mono_mb_emit_exception_marshal_directive (mb,
6194 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6197 mono_mb_emit_ldarg_addr (mb, argnum);
6198 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6199 mono_mb_emit_byte (mb, CEE_ADD);
6200 mono_mb_emit_byte (mb, CEE_LDIND_I);
6201 mono_mb_emit_stloc (mb, conv_arg);
6205 case MARSHAL_ACTION_PUSH:
6206 mono_mb_emit_ldloc (mb, conv_arg);
6209 case MARSHAL_ACTION_CONV_OUT: {
6210 /* no resource release required */
6214 case MARSHAL_ACTION_CONV_RESULT: {
6215 mono_mb_emit_exception_marshal_directive (mb,
6216 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6220 case MARSHAL_ACTION_MANAGED_CONV_IN:
6221 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6224 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6225 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6228 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6229 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6232 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6239 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6240 MonoMarshalSpec *spec,
6241 int conv_arg, MonoType **conv_arg_type,
6242 MarshalAction action)
6244 MonoMethodBuilder *mb = m->mb;
6245 MonoClass *klass = mono_class_from_mono_type (t);
6249 case MARSHAL_ACTION_CONV_IN:
6250 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6251 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6253 m->orig_conv_args [argnum] = 0;
6255 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6256 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6257 mono_mb_emit_exception_marshal_directive (mb, msg);
6261 if (klass->delegate) {
6263 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6264 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6265 mono_mb_emit_exception_marshal_directive (mb, msg);
6267 mono_mb_emit_byte (mb, CEE_LDNULL);
6268 mono_mb_emit_stloc (mb, conv_arg);
6270 mono_mb_emit_ldarg (mb, argnum);
6271 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6272 mono_mb_emit_stloc (mb, conv_arg);
6274 } else if (klass == mono_defaults.stringbuilder_class) {
6275 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6276 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6279 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6280 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6281 mono_mb_emit_exception_marshal_directive (mb, msg);
6286 mono_mb_emit_ldarg (mb, argnum);
6289 mono_mb_emit_icall (mb, conv_to_icall (conv));
6291 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6292 MonoException *exc = mono_get_exception_not_implemented (msg);
6293 g_warning ("%s", msg);
6295 mono_raise_exception (exc);
6298 mono_mb_emit_stloc (mb, conv_arg);
6299 } else if (klass->blittable) {
6300 mono_mb_emit_byte (mb, CEE_LDNULL);
6301 mono_mb_emit_stloc (mb, conv_arg);
6303 mono_mb_emit_ldarg (mb, argnum);
6304 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6306 mono_mb_emit_ldarg (mb, argnum);
6307 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6308 mono_mb_emit_stloc (mb, conv_arg);
6310 mono_mb_patch_branch (mb, pos);
6313 mono_mb_emit_byte (mb, CEE_LDNULL);
6314 mono_mb_emit_stloc (mb, conv_arg);
6317 /* we dont need any conversions for out parameters */
6318 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6321 mono_mb_emit_ldarg (mb, argnum);
6322 mono_mb_emit_byte (mb, CEE_LDIND_I);
6325 mono_mb_emit_ldarg (mb, argnum);
6326 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6327 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6330 /* store the address of the source into local variable 0 */
6331 mono_mb_emit_stloc (mb, 0);
6332 mono_mb_emit_ldloc (mb, 0);
6333 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6335 /* allocate space for the native struct and store the address */
6336 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6337 mono_mb_emit_byte (mb, CEE_PREFIX1);
6338 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6339 mono_mb_emit_stloc (mb, conv_arg);
6342 /* Need to store the original buffer so we can free it later */
6343 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6344 mono_mb_emit_ldloc (mb, conv_arg);
6345 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6348 /* set the src_ptr */
6349 mono_mb_emit_ldloc (mb, 0);
6350 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6351 mono_mb_emit_stloc (mb, 0);
6354 mono_mb_emit_ldloc (mb, conv_arg);
6355 mono_mb_emit_stloc (mb, 1);
6357 /* emit valuetype conversion code */
6358 emit_struct_conv (mb, klass, FALSE);
6360 mono_mb_patch_branch (mb, pos);
6364 case MARSHAL_ACTION_CONV_OUT:
6365 if (klass == mono_defaults.stringbuilder_class) {
6367 MonoMarshalNative encoding;
6368 MonoMarshalConv conv;
6370 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6371 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6373 g_assert (encoding != -1);
6376 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6380 mono_mb_emit_ldarg (mb, argnum);
6381 mono_mb_emit_ldloc (mb, conv_arg);
6384 case MONO_NATIVE_LPWSTR:
6385 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6387 case MONO_NATIVE_LPSTR:
6388 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6391 g_assert_not_reached ();
6394 mono_mb_emit_byte (mb, CEE_STIND_REF);
6396 mono_mb_emit_ldarg (mb, argnum);
6397 mono_mb_emit_ldloc (mb, conv_arg);
6399 mono_mb_emit_icall (mb, conv_to_icall (conv));
6403 mono_mb_emit_ldloc (mb, conv_arg);
6404 mono_mb_emit_icall (mb, mono_marshal_free);
6409 if (klass->delegate) {
6411 mono_mb_emit_ldarg (mb, argnum);
6412 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6413 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6414 mono_mb_emit_ldloc (mb, conv_arg);
6415 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6416 mono_mb_emit_byte (mb, CEE_STIND_REF);
6421 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6422 /* allocate a new object */
6423 mono_mb_emit_ldarg (mb, argnum);
6424 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6425 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6426 mono_mb_emit_byte (mb, CEE_STIND_REF);
6429 /* dst = *argument */
6430 mono_mb_emit_ldarg (mb, argnum);
6433 mono_mb_emit_byte (mb, CEE_LDIND_I);
6435 mono_mb_emit_stloc (mb, 1);
6437 mono_mb_emit_ldloc (mb, 1);
6438 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6440 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6441 mono_mb_emit_ldloc (mb, 1);
6442 mono_mb_emit_icon (mb, sizeof (MonoObject));
6443 mono_mb_emit_byte (mb, CEE_ADD);
6444 mono_mb_emit_stloc (mb, 1);
6446 /* src = tmp_locals [i] */
6447 mono_mb_emit_ldloc (mb, conv_arg);
6448 mono_mb_emit_stloc (mb, 0);
6450 /* emit valuetype conversion code */
6451 emit_struct_conv (mb, klass, TRUE);
6453 /* Free the structure returned by the native code */
6454 emit_struct_free (mb, klass, conv_arg);
6456 if (m->orig_conv_args [argnum]) {
6458 * If the native function changed the pointer, then free
6459 * the original structure plus the new pointer.
6461 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6462 mono_mb_emit_ldloc (mb, conv_arg);
6463 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6465 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6466 g_assert (m->orig_conv_args [argnum]);
6468 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6471 mono_mb_emit_ldloc (mb, conv_arg);
6472 mono_mb_emit_icall (mb, g_free);
6474 mono_mb_patch_branch (mb, pos2);
6478 /* Free the original structure passed to native code */
6479 emit_struct_free (mb, klass, conv_arg);
6481 mono_mb_patch_branch (mb, pos);
6484 case MARSHAL_ACTION_PUSH:
6486 mono_mb_emit_ldloc_addr (mb, conv_arg);
6488 mono_mb_emit_ldloc (mb, conv_arg);
6491 case MARSHAL_ACTION_CONV_RESULT:
6492 if (klass->delegate) {
6493 g_assert (!t->byref);
6494 mono_mb_emit_stloc (mb, 0);
6495 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6496 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6497 mono_mb_emit_ldloc (mb, 0);
6498 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6499 mono_mb_emit_stloc (mb, 3);
6502 mono_mb_emit_stloc (mb, 0);
6504 /* Make a copy since emit_conv modifies local 0 */
6505 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6506 mono_mb_emit_ldloc (mb, 0);
6507 mono_mb_emit_stloc (mb, loc);
6509 mono_mb_emit_byte (mb, CEE_LDNULL);
6510 mono_mb_emit_stloc (mb, 3);
6512 mono_mb_emit_ldloc (mb, 0);
6513 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6515 /* allocate result object */
6517 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6518 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6519 mono_mb_emit_stloc (mb, 3);
6523 mono_mb_emit_ldloc (mb, 3);
6524 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6525 mono_mb_emit_stloc (mb, 1);
6527 /* emit conversion code */
6528 emit_struct_conv (mb, klass, TRUE);
6530 emit_struct_free (mb, klass, loc);
6532 /* Free the pointer allocated by unmanaged code */
6533 mono_mb_emit_ldloc (mb, loc);
6534 mono_mb_emit_icall (mb, g_free);
6535 mono_mb_patch_branch (mb, pos);
6539 case MARSHAL_ACTION_MANAGED_CONV_IN:
6540 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6542 if (klass->delegate) {
6543 g_assert (!t->byref);
6544 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6545 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6546 mono_mb_emit_ldarg (mb, argnum);
6547 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6548 mono_mb_emit_stloc (mb, conv_arg);
6552 if (klass == mono_defaults.stringbuilder_class) {
6553 MonoMarshalNative encoding;
6555 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6558 g_assert (encoding == MONO_NATIVE_LPSTR);
6560 g_assert (!t->byref);
6561 g_assert (encoding != -1);
6563 mono_mb_emit_ldarg (mb, argnum);
6564 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6565 mono_mb_emit_stloc (mb, conv_arg);
6569 /* The class can not have an automatic layout */
6570 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6571 mono_mb_emit_auto_layout_exception (mb, klass);
6575 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6576 mono_mb_emit_byte (mb, CEE_LDNULL);
6577 mono_mb_emit_stloc (mb, conv_arg);
6582 mono_mb_emit_ldarg (mb, argnum);
6586 /* Check for NULL and raise an exception */
6587 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6589 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6591 mono_mb_patch_branch (mb, pos2);
6592 mono_mb_emit_ldarg (mb, argnum);
6593 mono_mb_emit_byte (mb, CEE_LDIND_I);
6596 mono_mb_emit_stloc (mb, 0);
6598 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6599 mono_mb_emit_stloc (mb, conv_arg);
6601 mono_mb_emit_ldloc (mb, 0);
6602 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6604 /* Create and set dst */
6605 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6606 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6607 mono_mb_emit_stloc (mb, conv_arg);
6608 mono_mb_emit_ldloc (mb, conv_arg);
6609 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6610 mono_mb_emit_stloc (mb, 1);
6612 /* emit valuetype conversion code */
6613 emit_struct_conv (mb, klass, TRUE);
6615 mono_mb_patch_branch (mb, pos);
6618 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6620 /* Check for null */
6621 mono_mb_emit_ldloc (mb, conv_arg);
6622 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6623 mono_mb_emit_ldarg (mb, argnum);
6624 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6625 mono_mb_emit_byte (mb, CEE_STIND_REF);
6626 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6628 mono_mb_patch_branch (mb, pos);
6631 mono_mb_emit_ldloc (mb, conv_arg);
6632 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6633 mono_mb_emit_stloc (mb, 0);
6635 /* Allocate and set dest */
6636 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6637 mono_mb_emit_byte (mb, CEE_CONV_I);
6638 mono_mb_emit_icall (mb, mono_marshal_alloc);
6639 mono_mb_emit_stloc (mb, 1);
6641 /* Update argument pointer */
6642 mono_mb_emit_ldarg (mb, argnum);
6643 mono_mb_emit_ldloc (mb, 1);
6644 mono_mb_emit_byte (mb, CEE_STIND_I);
6646 /* emit valuetype conversion code */
6647 emit_struct_conv (mb, klass, FALSE);
6649 mono_mb_patch_branch (mb, pos2);
6651 /* byval [Out] marshalling */
6653 /* FIXME: Handle null */
6656 mono_mb_emit_ldloc (mb, conv_arg);
6657 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6658 mono_mb_emit_stloc (mb, 0);
6661 mono_mb_emit_ldarg (mb, argnum);
6662 mono_mb_emit_stloc (mb, 1);
6664 /* emit valuetype conversion code */
6665 emit_struct_conv (mb, klass, FALSE);
6669 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6670 if (klass->delegate) {
6671 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6672 mono_mb_emit_stloc (mb, 3);
6676 /* The class can not have an automatic layout */
6677 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6678 mono_mb_emit_auto_layout_exception (mb, klass);
6682 mono_mb_emit_stloc (mb, 0);
6683 /* Check for null */
6684 mono_mb_emit_ldloc (mb, 0);
6685 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6686 mono_mb_emit_byte (mb, CEE_LDNULL);
6687 mono_mb_emit_stloc (mb, 3);
6688 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6690 mono_mb_patch_branch (mb, pos);
6693 mono_mb_emit_ldloc (mb, 0);
6694 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6695 mono_mb_emit_stloc (mb, 0);
6697 /* Allocate and set dest */
6698 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6699 mono_mb_emit_byte (mb, CEE_CONV_I);
6700 mono_mb_emit_icall (mb, mono_marshal_alloc);
6701 mono_mb_emit_byte (mb, CEE_DUP);
6702 mono_mb_emit_stloc (mb, 1);
6703 mono_mb_emit_stloc (mb, 3);
6705 emit_struct_conv (mb, klass, FALSE);
6707 mono_mb_patch_branch (mb, pos2);
6711 g_assert_not_reached ();
6718 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6719 MonoMarshalSpec *spec,
6720 int conv_arg, MonoType **conv_arg_type,
6721 MarshalAction action)
6723 MonoMethodBuilder *mb = m->mb;
6724 static MonoMethod *get_object_for_native_variant = NULL;
6725 static MonoMethod *get_native_variant_for_object = NULL;
6727 mono_init_com_types ();
6729 if (!get_object_for_native_variant)
6730 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6731 g_assert (get_object_for_native_variant);
6733 if (!get_native_variant_for_object)
6734 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6735 g_assert (get_native_variant_for_object);
6738 case MARSHAL_ACTION_CONV_IN: {
6739 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6742 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6744 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6746 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6749 mono_mb_emit_ldarg (mb, argnum);
6751 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6752 mono_mb_emit_ldloc_addr (mb, conv_arg);
6753 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6757 case MARSHAL_ACTION_CONV_OUT: {
6758 static MonoMethod *variant_clear = NULL;
6761 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6762 g_assert (variant_clear);
6765 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6766 mono_mb_emit_ldarg (mb, argnum);
6767 mono_mb_emit_ldloc_addr (mb, conv_arg);
6768 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6769 mono_mb_emit_byte (mb, CEE_STIND_REF);
6772 mono_mb_emit_ldloc_addr (mb, conv_arg);
6773 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6777 case MARSHAL_ACTION_PUSH:
6779 mono_mb_emit_ldloc_addr (mb, conv_arg);
6781 mono_mb_emit_ldloc (mb, conv_arg);
6784 case MARSHAL_ACTION_CONV_RESULT: {
6785 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6786 mono_mb_emit_exception_marshal_directive (mb, msg);
6790 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6791 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6794 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6796 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6798 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6802 mono_mb_emit_ldarg (mb, argnum);
6804 mono_mb_emit_ldarg_addr (mb, argnum);
6805 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6806 mono_mb_emit_stloc (mb, conv_arg);
6810 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6811 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6812 mono_mb_emit_ldloc (mb, conv_arg);
6813 mono_mb_emit_ldarg (mb, argnum);
6814 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6819 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6820 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6821 mono_mb_emit_exception_marshal_directive (mb, msg);
6826 g_assert_not_reached ();
6833 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6834 MonoMarshalSpec *spec,
6835 int conv_arg, MonoType **conv_arg_type,
6836 MarshalAction action)
6838 MonoMethodBuilder *mb = m->mb;
6839 MonoClass *klass = mono_class_from_mono_type (t);
6840 gboolean need_convert, need_free;
6841 MonoMarshalNative encoding;
6843 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6846 case MARSHAL_ACTION_CONV_IN:
6847 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6848 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6850 if (klass->element_class->blittable) {
6851 mono_mb_emit_ldarg (mb, argnum);
6853 mono_mb_emit_byte (mb, CEE_LDIND_I);
6854 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6855 mono_mb_emit_stloc (mb, conv_arg);
6858 guint32 label1, label2, label3;
6859 int index_var, src_var, dest_ptr, esize;
6860 MonoMarshalConv conv;
6861 gboolean is_string = FALSE;
6863 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6865 eklass = klass->element_class;
6867 if (eklass == mono_defaults.string_class) {
6869 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6871 else if (eklass == mono_defaults.stringbuilder_class) {
6873 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6878 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6879 mono_mb_emit_ldarg (mb, argnum);
6881 mono_mb_emit_byte (mb, CEE_LDIND_I);
6882 mono_mb_emit_stloc (mb, src_var);
6885 mono_mb_emit_ldloc (mb, src_var);
6886 mono_mb_emit_stloc (mb, conv_arg);
6887 mono_mb_emit_ldloc (mb, src_var);
6888 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6892 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6893 MonoException *exc = mono_get_exception_not_implemented (msg);
6894 g_warning ("%s", msg);
6896 mono_raise_exception (exc);
6901 esize = sizeof (gpointer);
6903 esize = mono_class_native_size (eklass, NULL);
6905 /* allocate space for the native struct and store the address */
6906 mono_mb_emit_icon (mb, esize);
6907 mono_mb_emit_ldloc (mb, src_var);
6908 mono_mb_emit_byte (mb, CEE_LDLEN);
6910 if (eklass == mono_defaults.string_class) {
6911 /* Make the array bigger for the terminating null */
6912 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6913 mono_mb_emit_byte (mb, CEE_ADD);
6915 mono_mb_emit_byte (mb, CEE_MUL);
6916 mono_mb_emit_byte (mb, CEE_PREFIX1);
6917 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6918 mono_mb_emit_stloc (mb, conv_arg);
6920 mono_mb_emit_ldloc (mb, conv_arg);
6921 mono_mb_emit_stloc (mb, dest_ptr);
6923 /* Emit marshalling loop */
6924 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6925 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6926 mono_mb_emit_stloc (mb, index_var);
6927 label2 = mono_mb_get_label (mb);
6928 mono_mb_emit_ldloc (mb, index_var);
6929 mono_mb_emit_ldloc (mb, src_var);
6930 mono_mb_emit_byte (mb, CEE_LDLEN);
6931 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6933 /* Emit marshalling code */
6936 mono_mb_emit_ldloc (mb, dest_ptr);
6937 mono_mb_emit_ldloc (mb, src_var);
6938 mono_mb_emit_ldloc (mb, index_var);
6939 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6940 mono_mb_emit_icall (mb, conv_to_icall (conv));
6941 mono_mb_emit_byte (mb, CEE_STIND_I);
6943 /* set the src_ptr */
6944 mono_mb_emit_ldloc (mb, src_var);
6945 mono_mb_emit_ldloc (mb, index_var);
6946 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6947 mono_mb_emit_stloc (mb, 0);
6950 mono_mb_emit_ldloc (mb, dest_ptr);
6951 mono_mb_emit_stloc (mb, 1);
6953 /* emit valuetype conversion code */
6954 emit_struct_conv (mb, eklass, FALSE);
6957 mono_mb_emit_add_to_local (mb, index_var, 1);
6958 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6960 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6962 mono_mb_patch_branch (mb, label3);
6964 if (eklass == mono_defaults.string_class) {
6965 /* Null terminate */
6966 mono_mb_emit_ldloc (mb, dest_ptr);
6967 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6968 mono_mb_emit_byte (mb, CEE_STIND_REF);
6971 mono_mb_patch_branch (mb, label1);
6976 case MARSHAL_ACTION_CONV_OUT:
6977 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6978 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);
6979 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6982 if (need_convert || need_free) {
6983 /* FIXME: Optimize blittable case */
6985 guint32 label1, label2, label3;
6986 int index_var, src_ptr, loc, esize;
6988 eklass = klass->element_class;
6989 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6990 esize = sizeof (gpointer);
6992 esize = mono_class_native_size (eklass, NULL);
6993 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6994 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6997 mono_mb_emit_ldarg (mb, argnum);
6999 mono_mb_emit_byte (mb, CEE_LDIND_I);
7000 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7002 mono_mb_emit_ldloc (mb, conv_arg);
7003 mono_mb_emit_stloc (mb, src_ptr);
7005 /* Emit marshalling loop */
7006 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7007 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7008 mono_mb_emit_stloc (mb, index_var);
7009 label2 = mono_mb_get_label (mb);
7010 mono_mb_emit_ldloc (mb, index_var);
7011 mono_mb_emit_ldarg (mb, argnum);
7013 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7014 mono_mb_emit_byte (mb, CEE_LDLEN);
7015 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7017 /* Emit marshalling code */
7019 if (eklass == mono_defaults.stringbuilder_class) {
7020 gboolean need_free2;
7021 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7023 g_assert (conv != -1);
7026 mono_mb_emit_ldarg (mb, argnum);
7028 mono_mb_emit_byte (mb, CEE_LDIND_I);
7029 mono_mb_emit_ldloc (mb, index_var);
7030 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7033 mono_mb_emit_ldloc (mb, src_ptr);
7034 mono_mb_emit_byte (mb, CEE_LDIND_I);
7036 mono_mb_emit_icall (mb, conv_to_icall (conv));
7040 mono_mb_emit_ldloc (mb, src_ptr);
7041 mono_mb_emit_byte (mb, CEE_LDIND_I);
7043 mono_mb_emit_icall (mb, mono_marshal_free);
7046 else if (eklass == mono_defaults.string_class) {
7049 mono_mb_emit_ldloc (mb, src_ptr);
7050 mono_mb_emit_byte (mb, CEE_LDIND_I);
7052 mono_mb_emit_icall (mb, mono_marshal_free);
7057 /* set the src_ptr */
7058 mono_mb_emit_ldloc (mb, src_ptr);
7059 mono_mb_emit_stloc (mb, 0);
7062 mono_mb_emit_ldarg (mb, argnum);
7064 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7065 mono_mb_emit_ldloc (mb, index_var);
7066 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7067 mono_mb_emit_stloc (mb, 1);
7069 /* emit valuetype conversion code */
7070 emit_struct_conv (mb, eklass, TRUE);
7074 mono_mb_emit_ldloc (mb, src_ptr);
7075 mono_mb_emit_stloc (mb, loc);
7076 mono_mb_emit_ldloc (mb, loc);
7078 emit_struct_free (mb, eklass, loc);
7082 mono_mb_emit_add_to_local (mb, index_var, 1);
7083 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7085 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7087 mono_mb_patch_branch (mb, label1);
7088 mono_mb_patch_branch (mb, label3);
7091 if (klass->element_class->blittable) {
7092 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7094 mono_mb_emit_ldarg (mb, argnum);
7095 mono_mb_emit_ldloc (mb, conv_arg);
7096 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7101 case MARSHAL_ACTION_PUSH:
7103 mono_mb_emit_ldloc_addr (mb, conv_arg);
7105 mono_mb_emit_ldloc (mb, conv_arg);
7108 case MARSHAL_ACTION_CONV_RESULT:
7109 /* fixme: we need conversions here */
7110 mono_mb_emit_stloc (mb, 3);
7113 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7115 guint32 label1, label2, label3;
7116 int index_var, src_ptr, loc, esize, param_num, num_elem;
7117 MonoMarshalConv conv;
7118 gboolean is_string = FALSE;
7120 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7121 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7124 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7125 mono_mb_emit_exception_marshal_directive (mb, msg);
7129 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7130 mono_mb_emit_exception_marshal_directive (mb, msg);
7133 if (spec->native != MONO_NATIVE_LPARRAY) {
7134 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7135 mono_mb_emit_exception_marshal_directive (mb, msg);
7139 /* FIXME: t is from the method which is wrapped, not the delegate type */
7140 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7142 param_num = spec->data.array_data.param_num;
7143 num_elem = spec->data.array_data.num_elem;
7144 if (spec->data.array_data.elem_mult == 0)
7145 /* param_num is not specified */
7148 if (param_num == -1) {
7149 if (num_elem <= 0) {
7150 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7151 mono_mb_emit_exception_marshal_directive (mb, msg);
7156 /* FIXME: Optimize blittable case */
7158 eklass = klass->element_class;
7159 if (eklass == mono_defaults.string_class) {
7161 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7163 else if (eklass == mono_defaults.stringbuilder_class) {
7165 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7170 mono_marshal_load_type_info (eklass);
7173 esize = sizeof (gpointer);
7175 esize = mono_class_native_size (eklass, NULL);
7176 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7177 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7179 mono_mb_emit_byte (mb, CEE_LDNULL);
7180 mono_mb_emit_stloc (mb, conv_arg);
7182 /* Check param index */
7183 if (param_num != -1) {
7184 if (param_num >= m->sig->param_count) {
7185 char *msg = g_strdup ("Array size control parameter index is out of range.");
7186 mono_mb_emit_exception_marshal_directive (mb, msg);
7189 switch (m->sig->params [param_num]->type) {
7202 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7203 mono_mb_emit_exception_marshal_directive (mb, msg);
7210 mono_mb_emit_ldarg (mb, argnum);
7211 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7213 mono_mb_emit_ldarg (mb, argnum);
7214 mono_mb_emit_stloc (mb, src_ptr);
7216 /* Create managed array */
7218 * The LPArray marshalling spec says that sometimes param_num starts
7219 * from 1, sometimes it starts from 0. But MS seems to allways start
7223 if (param_num == -1) {
7224 mono_mb_emit_icon (mb, num_elem);
7226 mono_mb_emit_ldarg (mb, param_num);
7228 mono_mb_emit_icon (mb, num_elem);
7229 mono_mb_emit_byte (mb, CEE_ADD);
7231 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7234 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7235 mono_mb_emit_stloc (mb, conv_arg);
7237 if (eklass->blittable) {
7238 mono_mb_emit_ldloc (mb, conv_arg);
7239 mono_mb_emit_byte (mb, CEE_CONV_I);
7240 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7241 mono_mb_emit_byte (mb, CEE_ADD);
7242 mono_mb_emit_ldarg (mb, argnum);
7243 mono_mb_emit_ldloc (mb, conv_arg);
7244 mono_mb_emit_byte (mb, CEE_LDLEN);
7245 mono_mb_emit_icon (mb, esize);
7246 mono_mb_emit_byte (mb, CEE_MUL);
7247 mono_mb_emit_byte (mb, CEE_PREFIX1);
7248 mono_mb_emit_byte (mb, CEE_CPBLK);
7252 /* Emit marshalling loop */
7253 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7254 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7255 mono_mb_emit_stloc (mb, index_var);
7256 label2 = mono_mb_get_label (mb);
7257 mono_mb_emit_ldloc (mb, index_var);
7258 mono_mb_emit_ldloc (mb, conv_arg);
7259 mono_mb_emit_byte (mb, CEE_LDLEN);
7260 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7262 /* Emit marshalling code */
7264 g_assert (conv != -1);
7266 mono_mb_emit_ldloc (mb, conv_arg);
7267 mono_mb_emit_ldloc (mb, index_var);
7269 mono_mb_emit_ldloc (mb, src_ptr);
7270 mono_mb_emit_byte (mb, CEE_LDIND_I);
7272 mono_mb_emit_icall (mb, conv_to_icall (conv));
7273 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7276 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7277 mono_mb_emit_exception_marshal_directive (mb, msg);
7281 mono_mb_emit_add_to_local (mb, index_var, 1);
7282 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7284 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7286 mono_mb_patch_branch (mb, label1);
7287 mono_mb_patch_branch (mb, label3);
7291 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7293 guint32 label1, label2, label3;
7294 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7295 MonoMarshalConv conv;
7296 gboolean is_string = FALSE;
7299 /* Already handled in CONV_IN */
7302 /* These are already checked in CONV_IN */
7303 g_assert (!t->byref);
7304 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7305 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7307 param_num = spec->data.array_data.param_num;
7308 num_elem = spec->data.array_data.num_elem;
7310 if (spec->data.array_data.elem_mult == 0)
7311 /* param_num is not specified */
7314 if (param_num == -1) {
7315 if (num_elem <= 0) {
7316 g_assert_not_reached ();
7320 /* FIXME: Optimize blittable case */
7322 eklass = klass->element_class;
7323 if (eklass == mono_defaults.string_class) {
7325 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7327 else if (eklass == mono_defaults.stringbuilder_class) {
7329 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7334 mono_marshal_load_type_info (eklass);
7337 esize = sizeof (gpointer);
7339 esize = mono_class_native_size (eklass, NULL);
7341 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7342 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7345 mono_mb_emit_ldloc (mb, conv_arg);
7346 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7348 mono_mb_emit_ldarg (mb, argnum);
7349 mono_mb_emit_stloc (mb, dest_ptr);
7351 if (eklass->blittable) {
7353 mono_mb_emit_ldarg (mb, argnum);
7355 mono_mb_emit_ldloc (mb, conv_arg);
7356 mono_mb_emit_byte (mb, CEE_CONV_I);
7357 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7358 mono_mb_emit_byte (mb, CEE_ADD);
7360 mono_mb_emit_ldloc (mb, conv_arg);
7361 mono_mb_emit_byte (mb, CEE_LDLEN);
7362 mono_mb_emit_icon (mb, esize);
7363 mono_mb_emit_byte (mb, CEE_MUL);
7364 mono_mb_emit_byte (mb, CEE_PREFIX1);
7365 mono_mb_emit_byte (mb, CEE_CPBLK);
7369 /* Emit marshalling loop */
7370 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7371 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7372 mono_mb_emit_stloc (mb, index_var);
7373 label2 = mono_mb_get_label (mb);
7374 mono_mb_emit_ldloc (mb, index_var);
7375 mono_mb_emit_ldloc (mb, conv_arg);
7376 mono_mb_emit_byte (mb, CEE_LDLEN);
7377 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7379 /* Emit marshalling code */
7381 g_assert (conv != -1);
7384 mono_mb_emit_ldloc (mb, dest_ptr);
7387 mono_mb_emit_ldloc (mb, conv_arg);
7388 mono_mb_emit_ldloc (mb, index_var);
7390 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7392 mono_mb_emit_icall (mb, conv_to_icall (conv));
7393 mono_mb_emit_byte (mb, CEE_STIND_I);
7396 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7397 mono_mb_emit_exception_marshal_directive (mb, msg);
7401 mono_mb_emit_add_to_local (mb, index_var, 1);
7402 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7404 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7406 mono_mb_patch_branch (mb, label1);
7407 mono_mb_patch_branch (mb, label3);
7411 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7413 guint32 label1, label2, label3;
7414 int index_var, src, dest, esize;
7415 MonoMarshalConv conv = -1;
7416 gboolean is_string = FALSE;
7418 g_assert (!t->byref);
7420 eklass = klass->element_class;
7422 mono_marshal_load_type_info (eklass);
7424 if (eklass == mono_defaults.string_class) {
7426 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7429 g_assert_not_reached ();
7433 esize = sizeof (gpointer);
7435 esize = mono_class_native_size (eklass, NULL);
7437 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7438 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7440 mono_mb_emit_stloc (mb, src);
7441 mono_mb_emit_ldloc (mb, src);
7442 mono_mb_emit_stloc (mb, 3);
7444 /* Check for null */
7445 mono_mb_emit_ldloc (mb, src);
7446 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7448 /* Allocate native array */
7449 mono_mb_emit_icon (mb, esize);
7450 mono_mb_emit_ldloc (mb, src);
7451 mono_mb_emit_byte (mb, CEE_LDLEN);
7453 if (eklass == mono_defaults.string_class) {
7454 /* Make the array bigger for the terminating null */
7455 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7456 mono_mb_emit_byte (mb, CEE_ADD);
7458 mono_mb_emit_byte (mb, CEE_MUL);
7459 mono_mb_emit_icall (mb, mono_marshal_alloc);
7460 mono_mb_emit_stloc (mb, dest);
7461 mono_mb_emit_ldloc (mb, dest);
7462 mono_mb_emit_stloc (mb, 3);
7464 /* Emit marshalling loop */
7465 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7466 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7467 mono_mb_emit_stloc (mb, index_var);
7468 label2 = mono_mb_get_label (mb);
7469 mono_mb_emit_ldloc (mb, index_var);
7470 mono_mb_emit_ldloc (mb, src);
7471 mono_mb_emit_byte (mb, CEE_LDLEN);
7472 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7474 /* Emit marshalling code */
7476 g_assert (conv != -1);
7479 mono_mb_emit_ldloc (mb, dest);
7482 mono_mb_emit_ldloc (mb, src);
7483 mono_mb_emit_ldloc (mb, index_var);
7485 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7487 mono_mb_emit_icall (mb, conv_to_icall (conv));
7488 mono_mb_emit_byte (mb, CEE_STIND_I);
7491 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7492 mono_mb_emit_exception_marshal_directive (mb, msg);
7496 mono_mb_emit_add_to_local (mb, index_var, 1);
7497 mono_mb_emit_add_to_local (mb, dest, esize);
7499 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7501 mono_mb_patch_branch (mb, label3);
7502 mono_mb_patch_branch (mb, label1);
7506 g_assert_not_reached ();
7513 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7514 MonoMarshalSpec *spec,
7515 int conv_arg, MonoType **conv_arg_type,
7516 MarshalAction action)
7518 MonoMethodBuilder *mb = m->mb;
7521 case MARSHAL_ACTION_CONV_IN: {
7522 MonoType *local_type;
7524 guint8 ldc_op = CEE_LDC_I4_1;
7527 local_type = &mono_defaults.int32_class->byval_arg;
7529 switch (spec->native) {
7530 case MONO_NATIVE_I1:
7531 case MONO_NATIVE_U1:
7532 local_type = &mono_defaults.byte_class->byval_arg;
7534 case MONO_NATIVE_VARIANTBOOL:
7535 local_type = &mono_defaults.int16_class->byval_arg;
7536 ldc_op = CEE_LDC_I4_M1;
7538 case MONO_NATIVE_BOOLEAN:
7539 local_type = &mono_defaults.int32_class->byval_arg;
7542 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7543 local_type = &mono_defaults.int32_class->byval_arg;
7548 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7550 *conv_arg_type = local_type;
7551 conv_arg = mono_mb_add_local (mb, local_type);
7553 mono_mb_emit_ldarg (mb, argnum);
7555 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7556 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7557 mono_mb_emit_byte (mb, ldc_op);
7558 mono_mb_emit_stloc (mb, conv_arg);
7559 mono_mb_patch_branch (mb, label_false);
7564 case MARSHAL_ACTION_CONV_OUT:
7566 int label_false, label_end;
7570 mono_mb_emit_ldarg (mb, argnum);
7571 mono_mb_emit_ldloc (mb, conv_arg);
7573 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7574 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7576 label_end = mono_mb_emit_branch (mb, CEE_BR);
7577 mono_mb_patch_branch (mb, label_false);
7578 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7579 mono_mb_patch_branch (mb, label_end);
7581 mono_mb_emit_byte (mb, CEE_STIND_I1);
7585 case MARSHAL_ACTION_PUSH:
7587 mono_mb_emit_ldloc_addr (mb, conv_arg);
7589 mono_mb_emit_ldloc (mb, conv_arg);
7591 mono_mb_emit_ldarg (mb, argnum);
7594 case MARSHAL_ACTION_CONV_RESULT:
7595 /* maybe we need to make sure that it fits within 8 bits */
7596 mono_mb_emit_stloc (mb, 3);
7599 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7600 MonoClass* conv_arg_class = mono_defaults.int32_class;
7601 guint8 ldop = CEE_LDIND_I4;
7602 int label_null, label_false;
7604 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7607 switch (spec->native) {
7608 case MONO_NATIVE_I1:
7609 case MONO_NATIVE_U1:
7610 conv_arg_class = mono_defaults.byte_class;
7611 ldop = CEE_LDIND_I1;
7613 case MONO_NATIVE_VARIANTBOOL:
7614 conv_arg_class = mono_defaults.int16_class;
7615 ldop = CEE_LDIND_I2;
7617 case MONO_NATIVE_BOOLEAN:
7620 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7625 *conv_arg_type = &conv_arg_class->this_arg;
7627 *conv_arg_type = &conv_arg_class->byval_arg;
7630 mono_mb_emit_ldarg (mb, argnum);
7634 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7635 mono_mb_emit_ldarg (mb, argnum);
7636 mono_mb_emit_byte (mb, ldop);
7640 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7641 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7642 mono_mb_emit_stloc (mb, conv_arg);
7643 mono_mb_patch_branch (mb, label_false);
7646 mono_mb_patch_branch (mb, label_null);
7650 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7651 guint8 stop = CEE_STIND_I4;
7652 guint8 ldc_op = CEE_LDC_I4_1;
7653 int label_null,label_false, label_end;;
7658 switch (spec->native) {
7659 case MONO_NATIVE_I1:
7660 case MONO_NATIVE_U1:
7661 stop = CEE_STIND_I1;
7663 case MONO_NATIVE_VARIANTBOOL:
7664 stop = CEE_STIND_I2;
7665 ldc_op = CEE_LDC_I4_M1;
7673 mono_mb_emit_ldarg (mb, argnum);
7674 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7676 mono_mb_emit_ldarg (mb, argnum);
7677 mono_mb_emit_ldloc (mb, conv_arg);
7679 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7680 mono_mb_emit_byte (mb, ldc_op);
7681 label_end = mono_mb_emit_branch (mb, CEE_BR);
7683 mono_mb_patch_branch (mb, label_false);
7684 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7685 mono_mb_patch_branch (mb, label_end);
7687 mono_mb_emit_byte (mb, stop);
7688 mono_mb_patch_branch (mb, label_null);
7693 g_assert_not_reached ();
7700 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7701 MonoMarshalSpec *spec, int conv_arg,
7702 MonoType **conv_arg_type, MarshalAction action)
7704 MonoMethodBuilder *mb = m->mb;
7707 case MARSHAL_ACTION_CONV_IN:
7708 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7709 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7710 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7714 case MARSHAL_ACTION_PUSH:
7715 mono_mb_emit_ldarg (mb, argnum);
7718 case MARSHAL_ACTION_CONV_RESULT:
7719 /* no conversions necessary */
7720 mono_mb_emit_stloc (mb, 3);
7731 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7732 MonoMarshalSpec *spec, int conv_arg,
7733 MonoType **conv_arg_type, MarshalAction action)
7735 MonoMethodBuilder *mb = m->mb;
7738 case MARSHAL_ACTION_PUSH:
7739 /* fixme: dont know how to marshal that. We cant simply
7740 * convert it to a one byte UTF8 character, because an
7741 * unicode character may need more that one byte in UTF8 */
7742 mono_mb_emit_ldarg (mb, argnum);
7745 case MARSHAL_ACTION_CONV_RESULT:
7746 /* fixme: we need conversions here */
7747 mono_mb_emit_stloc (mb, 3);
7758 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7759 MonoMarshalSpec *spec, int conv_arg,
7760 MonoType **conv_arg_type, MarshalAction action)
7762 MonoMethodBuilder *mb = m->mb;
7765 case MARSHAL_ACTION_PUSH:
7766 mono_mb_emit_ldarg (mb, argnum);
7769 case MARSHAL_ACTION_CONV_RESULT:
7770 /* no conversions necessary */
7771 mono_mb_emit_stloc (mb, 3);
7782 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7783 MonoMarshalSpec *spec, int conv_arg,
7784 MonoType **conv_arg_type, MarshalAction action)
7786 /* Ensure that we have marshalling info for this param */
7787 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7789 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7790 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7792 if (spec && spec->native == MONO_NATIVE_ASANY)
7793 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7796 case MONO_TYPE_VALUETYPE:
7797 if (t->data.klass == mono_defaults.handleref_class)
7798 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7800 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7801 case MONO_TYPE_STRING:
7802 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7803 case MONO_TYPE_CLASS:
7804 case MONO_TYPE_OBJECT:
7805 if (spec && spec->native == MONO_NATIVE_STRUCT)
7806 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7809 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7810 spec->native == MONO_NATIVE_IDISPATCH ||
7811 spec->native == MONO_NATIVE_INTERFACE))
7812 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7813 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7814 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7815 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7816 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7819 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7820 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7821 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7823 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7824 case MONO_TYPE_ARRAY:
7825 case MONO_TYPE_SZARRAY:
7826 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7827 case MONO_TYPE_BOOLEAN:
7828 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7830 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7831 case MONO_TYPE_CHAR:
7832 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7845 case MONO_TYPE_FNPTR:
7846 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7847 case MONO_TYPE_GENERICINST:
7848 if (mono_type_generic_inst_is_valuetype (t))
7849 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7851 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7858 * mono_marshal_emit_native_wrapper:
7859 * @image: the image to use for looking up custom marshallers
7860 * @sig: The signature of the native function
7861 * @piinfo: Marshalling information
7862 * @mspecs: Marshalling information
7863 * @aot: whenever the created method will be compiled by the AOT compiler
7864 * @method: if non-NULL, the pinvoke method to call
7865 * @check_exceptions: Whenever to check for pending exceptions after the native call
7867 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7870 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7872 EmitMarshalContext m;
7873 MonoMethodSignature *csig;
7875 int i, argnum, *tmp_locals;
7877 static MonoMethodSignature *get_last_error_sig = NULL;
7882 /* we copy the signature, so that we can set pinvoke to 0 */
7883 csig = signature_dup (mb->method->klass->image, sig);
7888 /* we allocate local for use with emit_struct_conv() */
7889 /* allocate local 0 (pointer) src_ptr */
7890 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7891 /* allocate local 1 (pointer) dst_ptr */
7892 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7893 /* allocate local 2 (boolean) delete_old */
7894 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7896 /* delete_old = FALSE */
7897 mono_mb_emit_icon (mb, 0);
7898 mono_mb_emit_stloc (mb, 2);
7900 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7901 /* allocate local 3 to store the return value */
7902 mono_mb_add_local (mb, sig->ret);
7905 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7906 /* Return type custom marshaling */
7908 * Since we can't determine the return type of the unmanaged function,
7909 * we assume it returns a pointer, and pass that pointer to
7910 * MarshalNativeToManaged.
7912 csig->ret = &mono_defaults.int_class->byval_arg;
7915 /* we first do all conversions */
7916 tmp_locals = alloca (sizeof (int) * sig->param_count);
7917 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7919 for (i = 0; i < sig->param_count; i ++) {
7920 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7923 /* push all arguments */
7926 mono_mb_emit_byte (mb, CEE_LDARG_0);
7928 for (i = 0; i < sig->param_count; i++) {
7929 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7932 /* call the native method */
7933 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7935 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7937 g_assert_not_reached ();
7942 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7943 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7944 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7945 mono_mb_emit_calli (mb, csig);
7947 mono_mb_emit_native_call (mb, csig, func);
7951 /* Set LastError if needed */
7952 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7953 if (!get_last_error_sig) {
7954 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7955 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7956 get_last_error_sig->pinvoke = 1;
7961 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7962 * clobber its value.
7964 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7965 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7967 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7971 /* convert the result */
7972 if (!sig->ret->byref) {
7973 MonoMarshalSpec *spec = mspecs [0];
7974 type = sig->ret->type;
7976 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7977 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7982 case MONO_TYPE_VOID:
7984 case MONO_TYPE_VALUETYPE:
7985 klass = sig->ret->data.klass;
7986 if (klass->enumtype) {
7987 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7990 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8004 case MONO_TYPE_FNPTR:
8005 case MONO_TYPE_STRING:
8006 case MONO_TYPE_CLASS:
8007 case MONO_TYPE_OBJECT:
8008 case MONO_TYPE_BOOLEAN:
8009 case MONO_TYPE_ARRAY:
8010 case MONO_TYPE_SZARRAY:
8011 case MONO_TYPE_CHAR:
8013 case MONO_TYPE_GENERICINST:
8014 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8016 case MONO_TYPE_TYPEDBYREF:
8018 g_warning ("return type 0x%02x unknown", sig->ret->type);
8019 g_assert_not_reached ();
8023 mono_mb_emit_stloc (mb, 3);
8027 * Need to call this after converting the result since MONO_VTADDR needs
8028 * to be adjacent to the call instruction.
8030 if (check_exceptions)
8031 emit_thread_interrupt_checkpoint (mb);
8033 /* we need to convert byref arguments back and free string arrays */
8034 for (i = 0; i < sig->param_count; i++) {
8035 MonoType *t = sig->params [i];
8036 MonoMarshalSpec *spec = mspecs [i + 1];
8038 argnum = i + sig->hasthis;
8040 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8041 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8046 case MONO_TYPE_STRING:
8047 case MONO_TYPE_VALUETYPE:
8048 case MONO_TYPE_CLASS:
8049 case MONO_TYPE_OBJECT:
8050 case MONO_TYPE_SZARRAY:
8051 case MONO_TYPE_BOOLEAN:
8052 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8057 if (!MONO_TYPE_IS_VOID(sig->ret))
8058 mono_mb_emit_ldloc (mb, 3);
8060 mono_mb_emit_byte (mb, CEE_RET);
8063 G_GNUC_UNUSED static void
8064 code_for (MonoMethod *method) {
8065 MonoMethodHeader *header = mono_method_get_header (method);
8066 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));
8070 * mono_marshal_get_native_wrapper:
8071 * @method: The MonoMethod to wrap.
8072 * @check_exceptions: Whenever to check for pending exceptions
8074 * generates IL code for the pinvoke wrapper (the generated method
8075 * calls the unmanaged code in piinfo->addr)
8078 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8080 MonoMethodSignature *sig, *csig;
8081 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8082 MonoMethodBuilder *mb;
8083 MonoMarshalSpec **mspecs;
8086 gboolean pinvoke = FALSE;
8089 const char *exc_class = "MissingMethodException";
8090 const char *exc_arg = NULL;
8092 g_assert (method != NULL);
8093 g_assert (mono_method_signature (method)->pinvoke);
8096 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8098 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8099 if ((res = mono_marshal_find_in_cache (cache, method)))
8102 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8104 return mono_cominterop_get_native_wrapper (method);
8106 g_assert_not_reached ();
8110 sig = mono_method_signature (method);
8112 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8113 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8116 if (!piinfo->addr) {
8118 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8119 exc_arg = "Method contains unsupported native code";
8121 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8123 piinfo->addr = mono_lookup_internal_call (method);
8126 /* hack - redirect certain string constructors to CreateString */
8127 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8128 g_assert (!pinvoke);
8129 g_assert (method->string_ctor);
8130 g_assert (sig->hasthis);
8132 /* CreateString returns a value */
8133 csig = signature_dup (method->klass->image, sig);
8134 csig->ret = &mono_defaults.string_class->byval_arg;
8138 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8139 if (!strcmp ("CreateString", res->name) &&
8140 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8142 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8143 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8145 /* create a wrapper to preserve .ctor in stack trace */
8146 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8148 mono_mb_emit_byte (mb, CEE_LDARG_0);
8149 for (i = 1; i <= csig->param_count; i++)
8150 mono_mb_emit_ldarg (mb, i);
8151 mono_mb_emit_managed_call (mb, res, NULL);
8152 mono_mb_emit_byte (mb, CEE_RET);
8154 /* use native_wrapper_cache because internal calls are looked up there */
8155 res = mono_mb_create_and_cache (cache, method,
8156 mb, csig, csig->param_count + 1);
8164 /* exception will be thrown */
8165 piinfo->addr = NULL;
8166 g_warning ("cannot find CreateString for .ctor");
8169 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8171 mb->method->save_lmf = 1;
8174 * In AOT mode and embedding scenarios, it is possible that the icall is not
8175 * registered in the runtime doing the AOT compilation.
8177 if (!piinfo->addr && !aot) {
8178 mono_mb_emit_exception (mb, exc_class, exc_arg);
8179 csig = signature_dup (method->klass->image, sig);
8181 res = mono_mb_create_and_cache (cache, method,
8182 mb, csig, csig->param_count + 16);
8187 /* internal calls: we simply push all arguments and call the method (no conversions) */
8188 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8190 csig = signature_dup_add_this (sig, method->klass);
8192 csig = signature_dup (method->klass->image, sig);
8194 /* hack - string constructors returns a value */
8195 if (method->string_ctor)
8196 csig->ret = &mono_defaults.string_class->byval_arg;
8202 * Add a null check since public icalls can be called with 'call' which
8203 * does no such check.
8205 mono_mb_emit_byte (mb, CEE_LDARG_0);
8206 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8207 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8208 mono_mb_patch_branch (mb, pos);
8210 mono_mb_emit_byte (mb, CEE_LDARG_0);
8213 for (i = 0; i < sig->param_count; i++)
8214 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8217 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8218 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8219 mono_mb_emit_calli (mb, csig);
8221 g_assert (piinfo->addr);
8222 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8224 if (check_exceptions)
8225 emit_thread_interrupt_checkpoint (mb);
8226 mono_mb_emit_byte (mb, CEE_RET);
8228 csig = signature_dup (method->klass->image, csig);
8230 res = mono_mb_create_and_cache (cache, method,
8231 mb, csig, csig->param_count + 16);
8238 g_assert (piinfo->addr);
8240 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8241 mono_method_get_marshal_info (method, mspecs);
8243 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8245 csig = signature_dup (method->klass->image, sig);
8247 res = mono_mb_create_and_cache (cache, method,
8248 mb, csig, csig->param_count + 16);
8251 for (i = sig->param_count; i >= 0; i--)
8253 mono_metadata_free_marshal_spec (mspecs [i]);
8256 /* code_for (res); */
8262 * mono_marshal_get_native_func_wrapper:
8263 * @image: The image to use for memory allocation and for looking up custom marshallers.
8264 * @sig: The signature of the function
8265 * @func: The native function to wrap
8267 * Returns a wrapper method around native functions, similar to the pinvoke
8271 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8272 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8274 MonoMethodSignature *csig;
8276 MonoMethodBuilder *mb;
8281 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8282 if ((res = mono_marshal_find_in_cache (cache, func)))
8285 name = g_strdup_printf ("wrapper_native_%p", func);
8286 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8287 mb->method->save_lmf = 1;
8289 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8291 csig = signature_dup (image, sig);
8293 res = mono_mb_create_and_cache (cache, func,
8294 mb, csig, csig->param_count + 16);
8297 mono_marshal_set_wrapper_info (res, NULL);
8299 /* code_for (res); */
8305 * mono_marshal_emit_managed_wrapper:
8307 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8308 * the delegate which wraps the managed method to be called. For closed delegates,
8309 * it could have fewer parameters than the method it wraps.
8310 * THIS_LOC is the memory location where the target of the delegate is stored.
8313 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
8315 MonoMethodSignature *sig, *csig;
8317 gboolean closed = FALSE;
8322 /* allocate local 0 (pointer) src_ptr */
8323 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8324 /* allocate local 1 (pointer) dst_ptr */
8325 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8326 /* allocate local 2 (boolean) delete_old */
8327 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8329 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8330 /* Closed delegate */
8331 g_assert (sig->param_count == invoke_sig->param_count + 1);
8333 /* Use a new signature without the first argument */
8334 sig = mono_metadata_signature_dup (sig);
8335 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8336 sig->param_count --;
8339 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8340 /* allocate local 3 to store the return value */
8341 mono_mb_add_local (mb, sig->ret);
8344 mono_mb_emit_icon (mb, 0);
8345 mono_mb_emit_stloc (mb, 2);
8347 /* we first do all conversions */
8348 tmp_locals = alloca (sizeof (int) * sig->param_count);
8349 for (i = 0; i < sig->param_count; i ++) {
8350 MonoType *t = sig->params [i];
8353 case MONO_TYPE_OBJECT:
8354 case MONO_TYPE_CLASS:
8355 case MONO_TYPE_VALUETYPE:
8356 case MONO_TYPE_ARRAY:
8357 case MONO_TYPE_SZARRAY:
8358 case MONO_TYPE_STRING:
8359 case MONO_TYPE_BOOLEAN:
8360 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8369 emit_thread_interrupt_checkpoint (mb);
8373 mono_mb_emit_ptr (mb, this_loc);
8374 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8377 g_assert_not_reached ();
8379 } else if (closed) {
8380 mono_mb_emit_ptr (mb, this_loc);
8381 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8384 for (i = 0; i < sig->param_count; i++) {
8385 MonoType *t = sig->params [i];
8387 if (tmp_locals [i]) {
8389 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8391 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8394 mono_mb_emit_ldarg (mb, i);
8397 mono_mb_emit_managed_call (mb, method, NULL);
8399 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8400 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8401 } else if (!sig->ret->byref) {
8402 switch (sig->ret->type) {
8403 case MONO_TYPE_VOID:
8405 case MONO_TYPE_BOOLEAN:
8408 case MONO_TYPE_CHAR:
8420 case MONO_TYPE_OBJECT:
8421 mono_mb_emit_stloc (mb, 3);
8423 case MONO_TYPE_STRING:
8424 csig->ret = &mono_defaults.int_class->byval_arg;
8425 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8427 case MONO_TYPE_VALUETYPE:
8428 case MONO_TYPE_CLASS:
8429 case MONO_TYPE_SZARRAY:
8430 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8433 g_warning ("return type 0x%02x unknown", sig->ret->type);
8434 g_assert_not_reached ();
8437 mono_mb_emit_stloc (mb, 3);
8440 /* Convert byref arguments back */
8441 for (i = 0; i < sig->param_count; i ++) {
8442 MonoType *t = sig->params [i];
8443 MonoMarshalSpec *spec = mspecs [i + 1];
8445 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8446 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8448 else if (t->byref) {
8450 case MONO_TYPE_CLASS:
8451 case MONO_TYPE_VALUETYPE:
8452 case MONO_TYPE_OBJECT:
8453 case MONO_TYPE_STRING:
8454 case MONO_TYPE_BOOLEAN:
8455 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8459 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8460 /* The [Out] information is encoded in the delegate signature */
8462 case MONO_TYPE_SZARRAY:
8463 case MONO_TYPE_CLASS:
8464 case MONO_TYPE_VALUETYPE:
8465 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8468 g_assert_not_reached ();
8473 if (m->retobj_var) {
8474 mono_mb_emit_ldloc (mb, m->retobj_var);
8475 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8476 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8479 if (!MONO_TYPE_IS_VOID(sig->ret))
8480 mono_mb_emit_ldloc (mb, 3);
8481 mono_mb_emit_byte (mb, CEE_RET);
8490 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8492 MonoMethodSignature *sig;
8497 * Under windows, delegates passed to native code must use the STDCALL
8498 * calling convention.
8500 csig->call_convention = MONO_CALL_STDCALL;
8503 sig = mono_method_signature (method);
8505 /* Change default calling convention if needed */
8506 /* Why is this a modopt ? */
8507 if (sig->ret && sig->ret->num_mods) {
8508 for (i = 0; i < sig->ret->num_mods; ++i) {
8509 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8510 g_assert (cmod_class);
8511 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8512 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8513 csig->call_convention = MONO_CALL_C;
8514 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8515 csig->call_convention = MONO_CALL_STDCALL;
8516 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8517 csig->call_convention = MONO_CALL_FASTCALL;
8518 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8519 csig->call_convention = MONO_CALL_THISCALL;
8526 * generates IL code to call managed methods from unmanaged code
8529 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8531 static MonoClass *UnmanagedFunctionPointerAttribute;
8532 MonoMethodSignature *sig, *csig, *invoke_sig;
8533 MonoMethodBuilder *mb;
8534 MonoMethod *res, *invoke;
8535 MonoMarshalSpec **mspecs;
8536 MonoMethodPInvoke piinfo;
8539 EmitMarshalContext m;
8541 g_assert (method != NULL);
8542 g_assert (!mono_method_signature (method)->pinvoke);
8545 * FIXME: Should cache the method+delegate type pair, since the same method
8546 * could be called with different delegates, thus different marshalling
8549 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8550 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8553 invoke = mono_get_delegate_invoke (delegate_klass);
8554 invoke_sig = mono_method_signature (invoke);
8556 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8557 mono_method_get_marshal_info (invoke, mspecs);
8559 sig = mono_method_signature (method);
8561 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8563 /* we copy the signature, so that we can modify it */
8565 /* Need to free this later */
8566 csig = mono_metadata_signature_dup (invoke_sig);
8568 csig = signature_dup (method->klass->image, invoke_sig);
8577 m.image = method->klass->image;
8579 mono_marshal_set_callconv_from_modopt (invoke, csig);
8581 /* Handle the UnmanagedFunctionPointerAttribute */
8582 if (!UnmanagedFunctionPointerAttribute)
8583 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8585 /* The attribute is only available in Net 2.0 */
8586 if (UnmanagedFunctionPointerAttribute) {
8587 MonoCustomAttrInfo *cinfo;
8588 MonoCustomAttrEntry *attr;
8591 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8592 * contents of the attribute without constructing it, as that might not be
8593 * possible when running in cross-compiling mode.
8595 cinfo = mono_custom_attrs_from_class (delegate_klass);
8598 for (i = 0; i < cinfo->num_attrs; ++i) {
8599 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8600 attr = &cinfo->attrs [i];
8606 MonoArray *typed_args, *named_args;
8607 CattrNamedArg *arginfo;
8611 MonoBoolean set_last_error = 0;
8612 MonoBoolean best_fit_mapping = 0;
8613 MonoBoolean throw_on_unmappable = 0;
8615 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8617 g_assert (mono_array_length (typed_args) == 1);
8620 o = mono_array_get (typed_args, MonoObject*, 0);
8621 call_conv = *(gint32*)mono_object_unbox (o);
8624 for (i = 0; i < mono_array_length (named_args); ++i) {
8625 CattrNamedArg *narg = &arginfo [i];
8627 o = mono_array_get (named_args, MonoObject*, i);
8629 g_assert (narg->field);
8630 if (!strcmp (narg->field->name, "CharSet")) {
8631 charset = *(gint32*)mono_object_unbox (o);
8632 } else if (!strcmp (narg->field->name, "SetLastError")) {
8633 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8634 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8635 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8636 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8637 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8639 g_assert_not_reached ();
8645 memset (&piinfo, 0, sizeof (piinfo));
8647 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8649 csig->call_convention = call_conv - 1;
8652 if (cinfo && !cinfo->cached)
8653 mono_custom_attrs_free (cinfo);
8656 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8659 res = mono_mb_create_and_cache (cache, method,
8660 mb, csig, sig->param_count + 16);
8663 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8667 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8669 mono_metadata_free_marshal_spec (mspecs [i]);
8672 /* code_for (res); */
8678 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8681 MonoMethodSignature *sig;
8682 MonoMethodBuilder *mb;
8687 method = mono_get_method (image, token, NULL);
8690 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8691 MonoMethodSignature *csig;
8692 MonoMarshalSpec **mspecs;
8693 EmitMarshalContext m;
8695 sig = mono_method_signature (method);
8696 g_assert (!sig->hasthis);
8698 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8699 mono_method_get_marshal_info (method, mspecs);
8701 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8702 csig = signature_dup (image, sig);
8713 mono_marshal_set_callconv_from_modopt (method, csig);
8715 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8717 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8720 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8723 for (i = sig->param_count; i >= 0; i--)
8725 mono_metadata_free_marshal_spec (mspecs [i]);
8728 return mono_compile_method (method);
8731 sig = mono_method_signature (method);
8732 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8734 param_count = sig->param_count + sig->hasthis;
8735 for (i = 0; i < param_count; i++)
8736 mono_mb_emit_ldarg (mb, i);
8738 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8739 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8741 mono_mb_emit_op (mb, CEE_CALL, method);
8742 mono_mb_emit_byte (mb, CEE_RET);
8745 method = mono_mb_create_method (mb, sig, param_count);
8748 return mono_compile_method (method);
8751 static MonoReflectionType *
8752 type_from_handle (MonoType *handle)
8754 MonoDomain *domain = mono_domain_get ();
8755 MonoClass *klass = mono_class_from_mono_type (handle);
8757 MONO_ARCH_SAVE_REGS;
8759 mono_class_init (klass);
8760 return mono_type_get_object (domain, handle);
8764 * mono_marshal_get_isinst:
8765 * @klass: the type of the field
8767 * This method generates a function which can be used to check if an object is
8768 * an instance of the given type, icluding the case where the object is a proxy.
8769 * The generated function has the following signature:
8770 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8773 mono_marshal_get_isinst (MonoClass *klass)
8775 static MonoMethodSignature *isint_sig = NULL;
8778 int pos_was_ok, pos_failed, pos_end, pos_end2;
8780 MonoMethodBuilder *mb;
8782 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8783 if ((res = mono_marshal_find_in_cache (cache, klass)))
8787 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8788 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8789 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8790 isint_sig->pinvoke = 0;
8793 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8794 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8797 mb->method->save_lmf = 1;
8799 /* check if the object is a proxy that needs special cast */
8800 mono_mb_emit_ldarg (mb, 0);
8801 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8802 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8804 /* The result of MONO_ISINST can be:
8805 0) the type check succeeded
8806 1) the type check did not succeed
8807 2) a CanCastTo call is needed */
8809 mono_mb_emit_byte (mb, CEE_DUP);
8810 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8812 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8813 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8815 /* get the real proxy from the transparent proxy*/
8817 mono_mb_emit_ldarg (mb, 0);
8818 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8819 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8823 mono_mb_patch_branch (mb, pos_failed);
8824 mono_mb_emit_byte (mb, CEE_LDNULL);
8825 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8829 mono_mb_patch_branch (mb, pos_was_ok);
8830 mono_mb_emit_byte (mb, CEE_POP);
8831 mono_mb_emit_ldarg (mb, 0);
8835 mono_mb_patch_branch (mb, pos_end);
8836 mono_mb_patch_branch (mb, pos_end2);
8837 mono_mb_emit_byte (mb, CEE_RET);
8839 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8846 * mono_marshal_get_castclass:
8847 * @klass: the type of the field
8849 * This method generates a function which can be used to cast an object to
8850 * an instance of the given type, icluding the case where the object is a proxy.
8851 * The generated function has the following signature:
8852 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8855 mono_marshal_get_castclass (MonoClass *klass)
8857 static MonoMethodSignature *castclass_sig = NULL;
8860 int pos_was_ok, pos_was_ok2;
8862 MonoMethodBuilder *mb;
8864 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8865 if ((res = mono_marshal_find_in_cache (cache, klass)))
8868 if (!castclass_sig) {
8869 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8870 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8871 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8872 castclass_sig->pinvoke = 0;
8875 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8876 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8879 mb->method->save_lmf = 1;
8881 /* check if the object is a proxy that needs special cast */
8882 mono_mb_emit_ldarg (mb, 0);
8883 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8884 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8886 /* The result of MONO_ISINST can be:
8887 0) the cast is valid
8888 1) cast of unknown proxy type
8889 or an exception if the cast is is invalid
8892 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8894 /* get the real proxy from the transparent proxy*/
8896 mono_mb_emit_ldarg (mb, 0);
8897 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8898 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8901 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8904 mono_mb_patch_branch (mb, pos_was_ok);
8905 mono_mb_patch_branch (mb, pos_was_ok2);
8906 mono_mb_emit_ldarg (mb, 0);
8909 mono_mb_emit_byte (mb, CEE_RET);
8911 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8918 mono_marshal_get_proxy_cancast (MonoClass *klass)
8920 static MonoMethodSignature *isint_sig = NULL;
8923 int pos_failed, pos_end;
8925 MonoMethod *can_cast_to;
8926 MonoMethodDesc *desc;
8927 MonoMethodBuilder *mb;
8929 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8930 if ((res = mono_marshal_find_in_cache (cache, klass)))
8934 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8935 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8936 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8937 isint_sig->pinvoke = 0;
8940 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8941 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8944 mb->method->save_lmf = 1;
8946 /* get the real proxy from the transparent proxy*/
8947 mono_mb_emit_ldarg (mb, 0);
8948 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8949 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8951 /* get the reflection type from the type handle */
8952 mono_mb_emit_ptr (mb, &klass->byval_arg);
8953 mono_mb_emit_icall (mb, type_from_handle);
8955 mono_mb_emit_ldarg (mb, 0);
8957 /* make the call to CanCastTo (type, ob) */
8958 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8959 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8960 g_assert (can_cast_to);
8961 mono_method_desc_free (desc);
8962 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8964 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8966 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8967 mono_mb_emit_ptr (mb, &klass->byval_arg);
8968 mono_mb_emit_icall (mb, type_from_handle);
8969 mono_mb_emit_ldarg (mb, 0);
8971 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8972 emit_thread_interrupt_checkpoint (mb);
8974 mono_mb_emit_ldarg (mb, 0);
8975 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8979 mono_mb_patch_branch (mb, pos_failed);
8980 mono_mb_emit_byte (mb, CEE_LDNULL);
8984 mono_mb_patch_branch (mb, pos_end);
8985 mono_mb_emit_byte (mb, CEE_RET);
8987 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8994 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8997 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8998 klass = mono_class_from_mono_type (rtype->type);
8999 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9003 * mono_marshal_get_struct_to_ptr:
9006 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9009 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9011 MonoMethodBuilder *mb;
9012 static MonoMethod *stoptr = NULL;
9015 g_assert (klass != NULL);
9017 mono_marshal_load_type_info (klass);
9019 if (klass->marshal_info->str_to_ptr)
9020 return klass->marshal_info->str_to_ptr;
9023 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9026 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9028 if (klass->blittable) {
9029 mono_mb_emit_byte (mb, CEE_LDARG_1);
9030 mono_mb_emit_byte (mb, CEE_LDARG_0);
9031 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9032 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9033 mono_mb_emit_byte (mb, CEE_PREFIX1);
9034 mono_mb_emit_byte (mb, CEE_CPBLK);
9037 /* allocate local 0 (pointer) src_ptr */
9038 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9039 /* allocate local 1 (pointer) dst_ptr */
9040 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9041 /* allocate local 2 (boolean) delete_old */
9042 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9043 mono_mb_emit_byte (mb, CEE_LDARG_2);
9044 mono_mb_emit_stloc (mb, 2);
9046 /* initialize src_ptr to point to the start of object data */
9047 mono_mb_emit_byte (mb, CEE_LDARG_0);
9048 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9049 mono_mb_emit_stloc (mb, 0);
9051 /* initialize dst_ptr */
9052 mono_mb_emit_byte (mb, CEE_LDARG_1);
9053 mono_mb_emit_stloc (mb, 1);
9055 emit_struct_conv (mb, klass, FALSE);
9058 mono_mb_emit_byte (mb, CEE_RET);
9060 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9063 klass->marshal_info->str_to_ptr = res;
9068 * mono_marshal_get_ptr_to_struct:
9071 * generates IL code for PtrToStructure (IntPtr src, object structure)
9074 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9076 MonoMethodBuilder *mb;
9077 static MonoMethodSignature *ptostr = NULL;
9080 g_assert (klass != NULL);
9082 mono_marshal_load_type_info (klass);
9084 if (klass->marshal_info->ptr_to_str)
9085 return klass->marshal_info->ptr_to_str;
9088 MonoMethodSignature *sig;
9090 /* Create the signature corresponding to
9091 static void PtrToStructure (IntPtr ptr, object structure);
9092 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9093 sig = mono_create_icall_signature ("void ptr object");
9094 sig = signature_dup (mono_defaults.corlib, sig);
9096 mono_memory_barrier ();
9100 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9102 if (klass->blittable) {
9103 mono_mb_emit_byte (mb, CEE_LDARG_1);
9104 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9105 mono_mb_emit_byte (mb, CEE_LDARG_0);
9106 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9107 mono_mb_emit_byte (mb, CEE_PREFIX1);
9108 mono_mb_emit_byte (mb, CEE_CPBLK);
9111 /* allocate local 0 (pointer) src_ptr */
9112 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9113 /* allocate local 1 (pointer) dst_ptr */
9114 mono_mb_add_local (mb, &klass->this_arg);
9116 /* initialize src_ptr to point to the start of object data */
9117 mono_mb_emit_byte (mb, CEE_LDARG_0);
9118 mono_mb_emit_stloc (mb, 0);
9120 /* initialize dst_ptr */
9121 mono_mb_emit_byte (mb, CEE_LDARG_1);
9122 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9123 mono_mb_emit_stloc (mb, 1);
9125 emit_struct_conv (mb, klass, TRUE);
9128 mono_mb_emit_byte (mb, CEE_RET);
9130 res = mono_mb_create_method (mb, ptostr, 0);
9133 klass->marshal_info->ptr_to_str = res;
9138 * generates IL code for the synchronized wrapper: the generated method
9139 * calls METHOD while locking 'this' or the parent type.
9142 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9144 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9145 MonoMethodSignature *sig;
9146 MonoExceptionClause *clause;
9147 MonoMethodBuilder *mb;
9150 int i, pos, this_local, ret_local = 0;
9154 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9157 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9158 if ((res = mono_marshal_find_in_cache (cache, method)))
9161 sig = signature_dup (method->klass->image, mono_method_signature (method));
9164 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9167 if (!MONO_TYPE_IS_VOID (sig->ret))
9168 ret_local = mono_mb_add_local (mb, sig->ret);
9170 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9171 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9172 /* This will throw the type load exception when the wrapper is compiled */
9173 mono_mb_emit_byte (mb, CEE_LDNULL);
9174 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9175 mono_mb_emit_byte (mb, CEE_POP);
9177 if (!MONO_TYPE_IS_VOID (sig->ret))
9178 mono_mb_emit_ldloc (mb, ret_local);
9179 mono_mb_emit_byte (mb, CEE_RET);
9181 res = mono_mb_create_and_cache (cache, method,
9182 mb, sig, sig->param_count + 16);
9189 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9191 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9192 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9194 mono_loader_lock ();
9196 if (!enter_method) {
9197 MonoMethodDesc *desc;
9199 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9200 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9201 g_assert (enter_method);
9202 mono_method_desc_free (desc);
9204 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9205 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9206 g_assert (exit_method);
9207 mono_method_desc_free (desc);
9209 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9210 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9211 g_assert (gettypefromhandle_method);
9212 mono_method_desc_free (desc);
9215 mono_loader_unlock ();
9217 /* Push this or the type object */
9218 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9219 /* We have special handling for this in the JIT */
9220 int index = mono_mb_add_data (mb, method->klass);
9221 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9222 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9223 mono_mb_emit_i4 (mb, index);
9225 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9228 mono_mb_emit_ldarg (mb, 0);
9229 mono_mb_emit_stloc (mb, this_local);
9231 /* Call Monitor::Enter() */
9232 mono_mb_emit_ldloc (mb, this_local);
9233 mono_mb_emit_managed_call (mb, enter_method, NULL);
9235 clause->try_offset = mono_mb_get_label (mb);
9237 /* Call the method */
9239 mono_mb_emit_ldarg (mb, 0);
9240 for (i = 0; i < sig->param_count; i++)
9241 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9243 mono_mb_emit_managed_call (mb, method, NULL);
9245 if (!MONO_TYPE_IS_VOID (sig->ret))
9246 mono_mb_emit_stloc (mb, ret_local);
9248 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9250 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9251 clause->handler_offset = mono_mb_get_label (mb);
9253 /* Call Monitor::Exit() */
9254 mono_mb_emit_ldloc (mb, this_local);
9255 mono_mb_emit_managed_call (mb, exit_method, NULL);
9256 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9258 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9260 mono_mb_patch_branch (mb, pos);
9261 if (!MONO_TYPE_IS_VOID (sig->ret))
9262 mono_mb_emit_ldloc (mb, ret_local);
9263 mono_mb_emit_byte (mb, CEE_RET);
9265 mono_mb_set_clauses (mb, 1, clause);
9267 res = mono_mb_create_and_cache (cache, method,
9268 mb, sig, sig->param_count + 16);
9276 * the returned method calls 'method' unboxing the this argument
9279 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9281 MonoMethodSignature *sig = mono_method_signature (method);
9283 MonoMethodBuilder *mb;
9287 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9288 if ((res = mono_marshal_find_in_cache (cache, method)))
9291 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9293 g_assert (sig->hasthis);
9295 mono_mb_emit_ldarg (mb, 0);
9296 mono_mb_emit_icon (mb, sizeof (MonoObject));
9297 mono_mb_emit_byte (mb, CEE_ADD);
9298 for (i = 0; i < sig->param_count; ++i)
9299 mono_mb_emit_ldarg (mb, i + 1);
9300 mono_mb_emit_managed_call (mb, method, NULL);
9301 mono_mb_emit_byte (mb, CEE_RET);
9303 res = mono_mb_create_and_cache (cache, method,
9304 mb, sig, sig->param_count + 16);
9307 /* code_for (res); */
9313 mono_marshal_get_stelemref ()
9315 static MonoMethod* ret = NULL;
9316 MonoMethodSignature *sig;
9317 MonoMethodBuilder *mb;
9319 guint32 b1, b2, b3, b4;
9322 int array_slot_addr;
9327 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9330 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9332 /* void stelemref (void* array, int idx, void* value) */
9333 sig->ret = &mono_defaults.void_class->byval_arg;
9334 sig->params [0] = &mono_defaults.object_class->byval_arg;
9335 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9336 sig->params [2] = &mono_defaults.object_class->byval_arg;
9338 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9339 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9340 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9344 <ldelema (bound check)>
9348 aklass = array->vtable->klass->element_class;
9349 vklass = value->vtable->klass;
9351 if (vklass->idepth < aklass->idepth)
9354 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9358 *array_slot_addr = value;
9362 if (mono_object_isinst (value, aklass))
9365 throw new ArrayTypeMismatchException ();
9368 /* ldelema (implicit bound check) */
9369 mono_mb_emit_ldarg (mb, 0);
9370 mono_mb_emit_ldarg (mb, 1);
9371 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9372 mono_mb_emit_stloc (mb, array_slot_addr);
9374 /* if (!value) goto do_store */
9375 mono_mb_emit_ldarg (mb, 2);
9376 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9378 /* aklass = array->vtable->klass->element_class */
9379 mono_mb_emit_ldarg (mb, 0);
9380 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9381 mono_mb_emit_byte (mb, CEE_LDIND_I);
9382 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9383 mono_mb_emit_byte (mb, CEE_LDIND_I);
9384 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9385 mono_mb_emit_byte (mb, CEE_LDIND_I);
9386 mono_mb_emit_stloc (mb, aklass);
9388 /* vklass = value->vtable->klass */
9389 mono_mb_emit_ldarg (mb, 2);
9390 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9391 mono_mb_emit_byte (mb, CEE_LDIND_I);
9392 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9393 mono_mb_emit_byte (mb, CEE_LDIND_I);
9394 mono_mb_emit_stloc (mb, vklass);
9396 /* if (vklass->idepth < aklass->idepth) goto failue */
9397 mono_mb_emit_ldloc (mb, vklass);
9398 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9399 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9401 mono_mb_emit_ldloc (mb, aklass);
9402 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9403 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9405 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9407 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9408 mono_mb_emit_ldloc (mb, vklass);
9409 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9410 mono_mb_emit_byte (mb, CEE_LDIND_I);
9412 mono_mb_emit_ldloc (mb, aklass);
9413 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9414 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9415 mono_mb_emit_icon (mb, 1);
9416 mono_mb_emit_byte (mb, CEE_SUB);
9417 mono_mb_emit_icon (mb, sizeof (void*));
9418 mono_mb_emit_byte (mb, CEE_MUL);
9419 mono_mb_emit_byte (mb, CEE_ADD);
9420 mono_mb_emit_byte (mb, CEE_LDIND_I);
9422 mono_mb_emit_ldloc (mb, aklass);
9424 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9426 copy_pos = mono_mb_get_label (mb);
9428 mono_mb_patch_branch (mb, b1);
9429 mono_mb_emit_ldloc (mb, array_slot_addr);
9430 mono_mb_emit_ldarg (mb, 2);
9431 mono_mb_emit_byte (mb, CEE_STIND_REF);
9433 mono_mb_emit_byte (mb, CEE_RET);
9436 mono_mb_patch_branch (mb, b2);
9437 mono_mb_patch_branch (mb, b3);
9439 mono_mb_emit_ldarg (mb, 2);
9440 mono_mb_emit_ldloc (mb, aklass);
9441 mono_mb_emit_icall (mb, mono_object_isinst);
9443 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9444 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9445 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9447 mono_mb_emit_byte (mb, CEE_RET);
9448 ret = mono_mb_create_method (mb, sig, 4);
9459 /* LOCKING: vars accessed under the marshal lock */
9460 static ArrayElemAddr *elem_addr_cache = NULL;
9461 static int elem_addr_cache_size = 0;
9462 static int elem_addr_cache_next = 0;
9465 * mono_marshal_get_array_address:
9466 * @rank: rank of the array type
9467 * @elem_size: size in bytes of an element of an array.
9469 * Returns a MonoMethd that implements the code to get the address
9470 * of an element in a multi-dimenasional array of @rank dimensions.
9471 * The returned method takes an array as the first argument and then
9472 * @rank indexes for the @rank dimensions.
9475 mono_marshal_get_array_address (int rank, int elem_size)
9478 MonoMethodBuilder *mb;
9479 MonoMethodSignature *sig;
9480 int i, bounds, ind, realidx;
9481 int branch_pos, *branch_positions;
9485 mono_marshal_lock ();
9486 for (i = 0; i < elem_addr_cache_next; ++i) {
9487 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9488 ret = elem_addr_cache [i].method;
9492 mono_marshal_unlock ();
9496 branch_positions = g_new0 (int, rank);
9498 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9500 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9501 sig->ret = &mono_defaults.int_class->byval_arg;
9502 sig->params [0] = &mono_defaults.object_class->byval_arg;
9503 for (i = 0; i < rank; ++i) {
9504 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9507 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9509 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9510 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9511 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9513 /* bounds = array->bounds; */
9514 mono_mb_emit_ldarg (mb, 0);
9515 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9516 mono_mb_emit_byte (mb, CEE_LDIND_I);
9517 mono_mb_emit_stloc (mb, bounds);
9519 /* ind is the overall element index, realidx is the partial index in a single dimension */
9520 /* ind = idx0 - bounds [0].lower_bound */
9521 mono_mb_emit_ldarg (mb, 1);
9522 mono_mb_emit_ldloc (mb, bounds);
9523 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9524 mono_mb_emit_byte (mb, CEE_ADD);
9525 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9526 mono_mb_emit_byte (mb, CEE_SUB);
9527 mono_mb_emit_stloc (mb, ind);
9528 /* if (ind >= bounds [0].length) goto exeception; */
9529 mono_mb_emit_ldloc (mb, ind);
9530 mono_mb_emit_ldloc (mb, bounds);
9531 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9532 mono_mb_emit_byte (mb, CEE_ADD);
9533 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9534 /* note that we use unsigned comparison */
9535 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9537 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9538 * We could also decide to ignore the passed elem_size and get it
9539 * from the array object, to reduce the number of methods we generate:
9540 * the additional cost is 3 memory loads and a non-immediate mul.
9542 for (i = 1; i < rank; ++i) {
9543 /* realidx = idxi - bounds [i].lower_bound */
9544 mono_mb_emit_ldarg (mb, 1 + i);
9545 mono_mb_emit_ldloc (mb, bounds);
9546 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9547 mono_mb_emit_byte (mb, CEE_ADD);
9548 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9549 mono_mb_emit_byte (mb, CEE_SUB);
9550 mono_mb_emit_stloc (mb, realidx);
9551 /* if (realidx >= bounds [i].length) goto exeception; */
9552 mono_mb_emit_ldloc (mb, realidx);
9553 mono_mb_emit_ldloc (mb, bounds);
9554 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9555 mono_mb_emit_byte (mb, CEE_ADD);
9556 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9557 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9558 /* ind = ind * bounds [i].length + realidx */
9559 mono_mb_emit_ldloc (mb, ind);
9560 mono_mb_emit_ldloc (mb, bounds);
9561 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9562 mono_mb_emit_byte (mb, CEE_ADD);
9563 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9564 mono_mb_emit_byte (mb, CEE_MUL);
9565 mono_mb_emit_ldloc (mb, realidx);
9566 mono_mb_emit_byte (mb, CEE_ADD);
9567 mono_mb_emit_stloc (mb, ind);
9570 /* return array->vector + ind * element_size */
9571 mono_mb_emit_ldarg (mb, 0);
9572 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9573 mono_mb_emit_ldloc (mb, ind);
9574 mono_mb_emit_icon (mb, elem_size);
9575 mono_mb_emit_byte (mb, CEE_MUL);
9576 mono_mb_emit_byte (mb, CEE_ADD);
9577 mono_mb_emit_byte (mb, CEE_RET);
9579 /* patch the branches to get here and throw */
9580 for (i = 1; i < rank; ++i) {
9581 mono_mb_patch_branch (mb, branch_positions [i]);
9583 mono_mb_patch_branch (mb, branch_pos);
9584 /* throw exception */
9585 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9587 g_free (branch_positions);
9588 ret = mono_mb_create_method (mb, sig, 4);
9591 /* cache the result */
9593 mono_marshal_lock ();
9594 for (i = 0; i < elem_addr_cache_next; ++i) {
9595 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9596 /* FIXME: free ret */
9597 ret = elem_addr_cache [i].method;
9603 ElementAddrWrapperInfo *info;
9605 if (elem_addr_cache_next >= elem_addr_cache_size) {
9606 int new_size = elem_addr_cache_size + 4;
9607 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9608 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9609 g_free (elem_addr_cache);
9610 elem_addr_cache = new_array;
9611 elem_addr_cache_size = new_size;
9613 elem_addr_cache [elem_addr_cache_next].rank = rank;
9614 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9615 elem_addr_cache [elem_addr_cache_next].method = ret;
9617 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
9619 info->elem_size = elem_size;
9621 mono_marshal_set_wrapper_info (ret, info);
9623 mono_marshal_unlock ();
9628 mono_marshal_alloc (gulong size)
9633 res = CoTaskMemAlloc (size);
9635 res = g_try_malloc ((gulong)size);
9637 mono_gc_out_of_memory ((gulong)size);
9643 mono_marshal_free (gpointer ptr)
9646 CoTaskMemFree (ptr);
9653 mono_marshal_free_array (gpointer *ptr, int size)
9660 for (i = 0; i < size; i++)
9666 mono_marshal_string_to_utf16 (MonoString *s)
9668 return s ? mono_string_chars (s) : NULL;
9672 mono_marshal_string_to_utf16_copy (MonoString *s)
9677 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9678 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9679 res [mono_string_length (s)] = 0;
9685 * mono_marshal_set_last_error:
9687 * This function is invoked to set the last error value from a P/Invoke call
9688 * which has SetLastError set.
9691 mono_marshal_set_last_error (void)
9694 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9696 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9701 mono_marshal_set_last_error_windows (int error)
9704 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9709 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9710 gpointer dest, gint32 length)
9715 MONO_ARCH_SAVE_REGS;
9717 MONO_CHECK_ARG_NULL (src);
9718 MONO_CHECK_ARG_NULL (dest);
9720 if (src->obj.vtable->klass->rank != 1)
9721 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9722 if (start_index < 0)
9723 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9725 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9726 if (start_index + length > mono_array_length (src))
9727 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9729 element_size = mono_array_element_size (src->obj.vtable->klass);
9731 /* no references should be involved */
9732 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9734 memcpy (dest, source_addr, length * element_size);
9738 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9739 MonoArray *dest, gint32 length)
9744 MONO_ARCH_SAVE_REGS;
9746 MONO_CHECK_ARG_NULL (src);
9747 MONO_CHECK_ARG_NULL (dest);
9749 if (dest->obj.vtable->klass->rank != 1)
9750 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9751 if (start_index < 0)
9752 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9754 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9755 if (start_index + length > mono_array_length (dest))
9756 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9758 element_size = mono_array_element_size (dest->obj.vtable->klass);
9760 /* no references should be involved */
9761 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9763 memcpy (dest_addr, src, length * element_size);
9766 #if NO_UNALIGNED_ACCESS
9767 #define RETURN_UNALIGNED(type, addr) \
9770 memcpy(&val, p + offset, sizeof(val)); \
9773 #define WRITE_UNALIGNED(type, addr, val) \
9774 memcpy(addr, &val, sizeof(type))
9776 #define RETURN_UNALIGNED(type, addr) \
9777 return *(type*)(p + offset);
9778 #define WRITE_UNALIGNED(type, addr, val) \
9779 (*(type *)(addr) = (val))
9783 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9787 MONO_ARCH_SAVE_REGS;
9789 RETURN_UNALIGNED(gpointer, p + offset);
9793 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9797 MONO_ARCH_SAVE_REGS;
9799 return *(unsigned char*)(p + offset);
9803 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9807 MONO_ARCH_SAVE_REGS;
9809 RETURN_UNALIGNED(gint16, p + offset);
9813 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9817 MONO_ARCH_SAVE_REGS;
9819 RETURN_UNALIGNED(gint32, p + offset);
9823 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9827 MONO_ARCH_SAVE_REGS;
9829 RETURN_UNALIGNED(gint64, p + offset);
9833 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9837 MONO_ARCH_SAVE_REGS;
9839 *(unsigned char*)(p + offset) = val;
9843 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9847 MONO_ARCH_SAVE_REGS;
9849 WRITE_UNALIGNED(gpointer, p + offset, val);
9853 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9857 MONO_ARCH_SAVE_REGS;
9859 WRITE_UNALIGNED(gint16, p + offset, val);
9863 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9867 MONO_ARCH_SAVE_REGS;
9869 WRITE_UNALIGNED(gint32, p + offset, val);
9873 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9877 MONO_ARCH_SAVE_REGS;
9879 WRITE_UNALIGNED(gint64, p + offset, val);
9883 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9885 MONO_ARCH_SAVE_REGS;
9890 return mono_string_new (mono_domain_get (), ptr);
9894 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9896 MONO_ARCH_SAVE_REGS;
9899 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9900 g_assert_not_reached ();
9903 return mono_string_new_len (mono_domain_get (), ptr, len);
9908 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9910 MonoDomain *domain = mono_domain_get ();
9914 MONO_ARCH_SAVE_REGS;
9922 return mono_string_new_utf16 (domain, ptr, len);
9926 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9928 MonoDomain *domain = mono_domain_get ();
9930 MONO_ARCH_SAVE_REGS;
9933 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9934 g_assert_not_reached ();
9937 return mono_string_new_utf16 (domain, ptr, len);
9942 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9944 MONO_ARCH_SAVE_REGS;
9946 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9950 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9956 MONO_ARCH_SAVE_REGS;
9958 MONO_CHECK_ARG_NULL (rtype);
9961 klass = mono_class_from_mono_type (type);
9962 if (!mono_class_init (klass))
9963 mono_raise_exception (mono_class_get_exception_for_failure (klass));
9965 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9967 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9971 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9972 exc = mono_get_exception_argument ("t", msg);
9974 mono_raise_exception (exc);
9978 return mono_class_native_size (klass, NULL);
9982 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9987 MONO_ARCH_SAVE_REGS;
9989 MONO_CHECK_ARG_NULL (obj);
9990 MONO_CHECK_ARG_NULL (dst);
9992 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9996 pa [2] = &delete_old;
9998 mono_runtime_invoke (method, NULL, pa, NULL);
10002 ptr_to_structure (gpointer src, MonoObject *dst)
10004 MonoMethod *method;
10007 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10012 mono_runtime_invoke (method, NULL, pa, NULL);
10016 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10020 MONO_ARCH_SAVE_REGS;
10022 MONO_CHECK_ARG_NULL (src);
10023 MONO_CHECK_ARG_NULL (dst);
10025 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10027 if (t->type == MONO_TYPE_VALUETYPE) {
10028 MonoException *exc;
10031 tmp = g_strdup_printf ("Destination is a boxed value type.");
10032 exc = mono_get_exception_argument ("dst", tmp);
10035 mono_raise_exception (exc);
10039 ptr_to_structure (src, dst);
10043 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10046 MonoDomain *domain = mono_domain_get ();
10049 MONO_ARCH_SAVE_REGS;
10051 MONO_CHECK_ARG_NULL (src);
10052 MONO_CHECK_ARG_NULL (type);
10054 klass = mono_class_from_mono_type (type->type);
10055 if (!mono_class_init (klass))
10056 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10058 res = mono_object_new (domain, klass);
10060 ptr_to_structure (src, res);
10066 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10068 MonoMarshalType *info;
10071 int match_index = -1;
10073 MONO_ARCH_SAVE_REGS;
10075 MONO_CHECK_ARG_NULL (type);
10076 MONO_CHECK_ARG_NULL (field_name);
10078 fname = mono_string_to_utf8 (field_name);
10079 klass = mono_class_from_mono_type (type->type);
10080 if (!mono_class_init (klass))
10081 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10083 while (klass && match_index == -1) {
10084 MonoClassField* field;
10086 gpointer iter = NULL;
10087 while ((field = mono_class_get_fields (klass, &iter))) {
10088 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10090 if (!strcmp (fname, mono_field_get_name (field))) {
10097 if (match_index == -1)
10098 klass = klass->parent;
10103 if(match_index == -1) {
10104 MonoException* exc;
10107 /* Get back original class instance */
10108 klass = mono_class_from_mono_type (type->type);
10110 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10111 exc = mono_get_exception_argument ("fieldName", tmp);
10114 mono_raise_exception ((MonoException*)exc);
10117 info = mono_marshal_load_type_info (klass);
10118 return info->fields [match_index].offset;
10122 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10127 tres = mono_string_to_utf8 (string);
10131 len = strlen (tres) + 1;
10132 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10133 memcpy (ret, tres, len);
10138 return mono_string_to_utf8 (string);
10143 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10145 MONO_ARCH_SAVE_REGS;
10147 if (string == NULL)
10150 #ifdef TARGET_WIN32
10151 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10152 ((mono_string_length (string) + 1) * 2);
10154 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10156 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10157 res [mono_string_length (string)] = 0;
10163 mono_struct_delete_old (MonoClass *klass, char *ptr)
10165 MonoMarshalType *info;
10168 info = mono_marshal_load_type_info (klass);
10170 for (i = 0; i < info->num_fields; i++) {
10171 MonoMarshalNative ntype;
10172 MonoMarshalConv conv;
10173 MonoType *ftype = info->fields [i].field->type;
10176 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10179 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10180 klass->unicode, &conv);
10182 cpos = ptr + info->fields [i].offset;
10185 case MONO_MARSHAL_CONV_NONE:
10186 if (MONO_TYPE_ISSTRUCT (ftype)) {
10187 mono_struct_delete_old (ftype->data.klass, cpos);
10191 case MONO_MARSHAL_CONV_STR_LPWSTR:
10192 /* We assume this field points inside a MonoString */
10194 case MONO_MARSHAL_CONV_STR_LPTSTR:
10195 #ifdef TARGET_WIN32
10196 /* We assume this field points inside a MonoString
10200 case MONO_MARSHAL_CONV_STR_LPSTR:
10201 case MONO_MARSHAL_CONV_STR_BSTR:
10202 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10203 case MONO_MARSHAL_CONV_STR_TBSTR:
10204 mono_marshal_free (*(gpointer *)cpos);
10214 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10218 MONO_ARCH_SAVE_REGS;
10220 MONO_CHECK_ARG_NULL (src);
10221 MONO_CHECK_ARG_NULL (type);
10223 klass = mono_class_from_mono_type (type->type);
10224 if (!mono_class_init (klass))
10225 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10227 mono_struct_delete_old (klass, (char *)src);
10231 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10235 MONO_ARCH_SAVE_REGS;
10237 if ((gulong)size == 0)
10238 /* This returns a valid pointer for size 0 on MS.NET */
10242 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10244 res = g_try_malloc ((gulong)size);
10247 mono_gc_out_of_memory ((gulong)size);
10253 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10258 mono_gc_out_of_memory ((gulong)size);
10263 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10265 res = g_try_realloc (ptr, (gulong)size);
10268 mono_gc_out_of_memory ((gulong)size);
10274 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10276 MONO_ARCH_SAVE_REGS;
10286 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10288 MONO_ARCH_SAVE_REGS;
10291 return CoTaskMemAlloc (size);
10293 return g_try_malloc ((gulong)size);
10298 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10300 MONO_ARCH_SAVE_REGS;
10303 CoTaskMemFree (ptr);
10310 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10312 MONO_ARCH_SAVE_REGS;
10315 return CoTaskMemRealloc (ptr, size);
10317 return g_try_realloc (ptr, (gulong)size);
10322 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10324 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10328 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10330 MonoClass *klass = mono_type_get_class (type->type);
10331 if (!mono_class_init (klass))
10332 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10334 return mono_ftnptr_to_delegate (klass, ftn);
10338 * mono_marshal_is_loading_type_info:
10340 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10344 mono_marshal_is_loading_type_info (MonoClass *klass)
10346 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10348 return g_slist_find (loads_list, klass) != NULL;
10352 * mono_marshal_load_type_info:
10354 * Initialize klass->marshal_info using information from metadata. This function can
10355 * recursively call itself, and the caller is responsible to avoid that by calling
10356 * mono_marshal_is_loading_type_info () beforehand.
10358 * LOCKING: Acquires the loader lock.
10361 mono_marshal_load_type_info (MonoClass* klass)
10364 guint32 native_size = 0, min_align = 1;
10365 MonoMarshalType *info;
10366 MonoClassField* field;
10369 GSList *loads_list;
10371 g_assert (klass != NULL);
10373 if (klass->marshal_info)
10374 return klass->marshal_info;
10376 if (!klass->inited)
10377 mono_class_init (klass);
10379 mono_loader_lock ();
10381 if (klass->marshal_info) {
10382 mono_loader_unlock ();
10383 return klass->marshal_info;
10387 * This function can recursively call itself, so we keep the list of classes which are
10388 * under initialization in a TLS list.
10390 g_assert (!mono_marshal_is_loading_type_info (klass));
10391 loads_list = TlsGetValue (load_type_info_tls_id);
10392 loads_list = g_slist_prepend (loads_list, klass);
10393 TlsSetValue (load_type_info_tls_id, loads_list);
10396 while ((field = mono_class_get_fields (klass, &iter))) {
10397 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10399 if (mono_field_is_deleted (field))
10404 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10406 /* The mempool is protected by the loader lock */
10407 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10408 info->num_fields = count;
10410 /* Try to find a size for this type in metadata */
10411 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10413 if (klass->parent) {
10414 int parent_size = mono_class_native_size (klass->parent, NULL);
10416 /* Add parent size to real size */
10417 native_size += parent_size;
10418 info->native_size = parent_size;
10423 while ((field = mono_class_get_fields (klass, &iter))) {
10427 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10430 if (mono_field_is_deleted (field))
10432 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10433 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10434 NULL, NULL, &info->fields [j].mspec);
10436 info->fields [j].field = field;
10438 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10439 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10440 /* This field is a hack inserted by MCS to empty structures */
10445 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10446 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10447 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10448 &align, TRUE, klass->unicode);
10449 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10450 min_align = MAX (align, min_align);
10451 info->fields [j].offset = info->native_size;
10452 info->fields [j].offset += align - 1;
10453 info->fields [j].offset &= ~(align - 1);
10454 info->native_size = info->fields [j].offset + size;
10456 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10457 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10458 &align, TRUE, klass->unicode);
10459 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10460 min_align = MAX (align, min_align);
10461 info->fields [j].offset = field->offset - sizeof (MonoObject);
10462 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10468 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10469 info->native_size = MAX (native_size, info->native_size);
10472 if (info->native_size & (min_align - 1)) {
10473 info->native_size += min_align - 1;
10474 info->native_size &= ~(min_align - 1);
10477 info->min_align = min_align;
10479 /* Update the class's blittable info, if the layouts don't match */
10480 if (info->native_size != mono_class_value_size (klass, NULL))
10481 klass->blittable = FALSE;
10483 /* If this is an array type, ensure that we have element info */
10484 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10485 mono_marshal_load_type_info (klass->element_class);
10488 loads_list = TlsGetValue (load_type_info_tls_id);
10489 loads_list = g_slist_remove (loads_list, klass);
10490 TlsSetValue (load_type_info_tls_id, loads_list);
10492 /*We do double-checking locking on marshal_info */
10493 mono_memory_barrier ();
10495 klass->marshal_info = info;
10497 mono_loader_unlock ();
10499 return klass->marshal_info;
10503 * mono_class_native_size:
10506 * Returns: the native size of an object instance (when marshaled
10507 * to unmanaged code)
10510 mono_class_native_size (MonoClass *klass, guint32 *align)
10512 if (!klass->marshal_info) {
10513 if (mono_marshal_is_loading_type_info (klass)) {
10518 mono_marshal_load_type_info (klass);
10523 *align = klass->marshal_info->min_align;
10525 return klass->marshal_info->native_size;
10528 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10529 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10530 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10531 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10534 * mono_type_native_stack_size:
10535 * @t: the type to return the size it uses on the stack
10537 * Returns: the number of bytes required to hold an instance of this
10538 * type on the native stack
10541 mono_type_native_stack_size (MonoType *t, guint32 *align)
10545 g_assert (t != NULL);
10551 *align = sizeof (gpointer);
10552 return sizeof (gpointer);
10556 case MONO_TYPE_BOOLEAN:
10557 case MONO_TYPE_CHAR:
10568 case MONO_TYPE_STRING:
10569 case MONO_TYPE_OBJECT:
10570 case MONO_TYPE_CLASS:
10571 case MONO_TYPE_SZARRAY:
10572 case MONO_TYPE_PTR:
10573 case MONO_TYPE_FNPTR:
10574 case MONO_TYPE_ARRAY:
10575 *align = sizeof (gpointer);
10576 return sizeof (gpointer);
10581 *align = ALIGNMENT (gdouble);
10585 *align = ALIGNMENT (glong);
10587 case MONO_TYPE_GENERICINST:
10588 if (!mono_type_generic_inst_is_valuetype (t)) {
10589 *align = sizeof (gpointer);
10590 return sizeof (gpointer);
10593 case MONO_TYPE_TYPEDBYREF:
10594 case MONO_TYPE_VALUETYPE: {
10596 MonoClass *klass = mono_class_from_mono_type (t);
10598 if (klass->enumtype)
10599 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10601 size = mono_class_native_size (klass, align);
10602 *align = *align + 3;
10612 g_error ("type 0x%02x unknown", t->type);
10618 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10619 gboolean as_field, gboolean unicode)
10621 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10624 switch (native_type) {
10625 case MONO_NATIVE_BOOLEAN:
10628 case MONO_NATIVE_I1:
10629 case MONO_NATIVE_U1:
10632 case MONO_NATIVE_I2:
10633 case MONO_NATIVE_U2:
10634 case MONO_NATIVE_VARIANTBOOL:
10637 case MONO_NATIVE_I4:
10638 case MONO_NATIVE_U4:
10639 case MONO_NATIVE_ERROR:
10642 case MONO_NATIVE_I8:
10643 case MONO_NATIVE_U8:
10644 *align = ALIGNMENT(guint64);
10646 case MONO_NATIVE_R4:
10649 case MONO_NATIVE_R8:
10650 *align = ALIGNMENT(double);
10652 case MONO_NATIVE_INT:
10653 case MONO_NATIVE_UINT:
10654 case MONO_NATIVE_LPSTR:
10655 case MONO_NATIVE_LPWSTR:
10656 case MONO_NATIVE_LPTSTR:
10657 case MONO_NATIVE_BSTR:
10658 case MONO_NATIVE_ANSIBSTR:
10659 case MONO_NATIVE_TBSTR:
10660 case MONO_NATIVE_LPARRAY:
10661 case MONO_NATIVE_SAFEARRAY:
10662 case MONO_NATIVE_IUNKNOWN:
10663 case MONO_NATIVE_IDISPATCH:
10664 case MONO_NATIVE_INTERFACE:
10665 case MONO_NATIVE_ASANY:
10666 case MONO_NATIVE_FUNC:
10667 case MONO_NATIVE_LPSTRUCT:
10668 *align = ALIGNMENT(gpointer);
10669 return sizeof (gpointer);
10670 case MONO_NATIVE_STRUCT:
10671 klass = mono_class_from_mono_type (type);
10672 if (klass == mono_defaults.object_class &&
10673 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10677 return mono_class_native_size (klass, align);
10678 case MONO_NATIVE_BYVALTSTR: {
10679 int esize = unicode ? 2: 1;
10682 return mspec->data.array_data.num_elem * esize;
10684 case MONO_NATIVE_BYVALARRAY: {
10685 // FIXME: Have to consider ArraySubType
10687 klass = mono_class_from_mono_type (type);
10688 if (klass->element_class == mono_defaults.char_class) {
10689 esize = unicode ? 2 : 1;
10692 esize = mono_class_native_size (klass->element_class, align);
10695 return mspec->data.array_data.num_elem * esize;
10697 case MONO_NATIVE_CUSTOM:
10698 *align = sizeof (gpointer);
10699 return sizeof (gpointer);
10701 case MONO_NATIVE_CURRENCY:
10702 case MONO_NATIVE_VBBYREFSTR:
10704 g_error ("native type %02x not implemented", native_type);
10707 g_assert_not_reached ();
10712 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10720 t = &o->vtable->klass->byval_arg;
10724 case MONO_TYPE_PTR:
10727 case MONO_TYPE_BOOLEAN:
10730 case MONO_TYPE_CHAR:
10735 return mono_object_unbox (o);
10737 case MONO_TYPE_STRING:
10738 switch (string_encoding) {
10739 case MONO_NATIVE_LPWSTR:
10740 return mono_string_to_utf16 ((MonoString*)o);
10742 case MONO_NATIVE_LPSTR:
10743 return mono_string_to_lpstr ((MonoString*)o);
10746 g_warning ("marshaling conversion %d not implemented", string_encoding);
10747 g_assert_not_reached ();
10750 case MONO_TYPE_CLASS:
10751 case MONO_TYPE_VALUETYPE: {
10752 MonoMethod *method;
10755 MonoBoolean delete_old = FALSE;
10757 klass = t->data.klass;
10759 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10762 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10763 klass->blittable || klass->enumtype))
10764 return mono_object_unbox (o);
10766 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10768 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10769 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10773 pa [2] = &delete_old;
10775 mono_runtime_invoke (method, NULL, pa, NULL);
10782 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10788 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10796 t = &o->vtable->klass->byval_arg;
10798 case MONO_TYPE_STRING:
10799 switch (string_encoding) {
10800 case MONO_NATIVE_LPWSTR:
10801 case MONO_NATIVE_LPSTR:
10802 mono_marshal_free (ptr);
10805 g_warning ("marshaling conversion %d not implemented", string_encoding);
10806 g_assert_not_reached ();
10809 case MONO_TYPE_CLASS:
10810 case MONO_TYPE_VALUETYPE: {
10811 klass = t->data.klass;
10813 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10814 klass->blittable || klass->enumtype))
10817 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10818 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10824 mono_runtime_invoke (method, NULL, pa, NULL);
10827 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10828 mono_struct_delete_old (klass, ptr);
10831 mono_marshal_free (ptr);
10840 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10842 MonoMethodSignature *sig, *csig;
10843 MonoMethodBuilder *mb;
10847 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10848 mb->method->slot = -1;
10850 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10851 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10853 sig = mono_method_signature (method);
10854 csig = signature_dup (method->klass->image, sig);
10855 csig->generic_param_count = 0;
10857 mono_mb_emit_ldarg (mb, 0);
10858 for (i = 0; i < csig->param_count; i++)
10859 mono_mb_emit_ldarg (mb, i + 1);
10860 mono_mb_emit_managed_call (mb, method, NULL);
10861 mono_mb_emit_byte (mb, CEE_RET);
10863 /* We can corlib internal methods */
10864 mb->skip_visibility = TRUE;
10866 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10874 * The mono_win32_compat_* functions are implementations of inline
10875 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10876 * although not exported by kernel32.
10878 * We map the appropiate kernel32 entries to these functions using
10879 * dllmaps declared in the global etc/mono/config.
10883 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10885 if (!dest || !source)
10888 memcpy (dest, source, length);
10892 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10894 memset (dest, fill, length);
10898 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10900 if (!dest || !source)
10903 memmove (dest, source, length);
10907 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10909 memset (dest, 0, length);
10913 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10918 for (i = 0; i < len; ++i)
10922 g_assert (i < len);
10925 while (byte && !(byte & 1))
10927 g_assert (byte == 1);
10930 *bitmask = buf [i];
10934 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10936 MonoMethodBuilder *mb;
10937 MonoMethodSignature *sig, *csig;
10938 MonoExceptionClause *clause;
10943 int i, param_count, sig_size, pos_leave;
10947 klass = method->klass;
10948 image = method->klass->image;
10949 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10951 if ((res = mono_marshal_find_in_cache (cache, method)))
10954 sig = mono_method_signature (method);
10955 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10957 /* add "this" and exception param */
10958 param_count = sig->param_count + sig->hasthis + 1;
10960 /* dup & extend signature */
10961 csig = mono_metadata_signature_alloc (image, param_count);
10962 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10963 memcpy (csig, sig, sig_size);
10964 csig->param_count = param_count;
10967 csig->call_convention = MONO_CALL_DEFAULT;
10969 if (sig->hasthis) {
10971 csig->params [0] = &klass->byval_arg;
10972 /* move params up by one */
10973 for (i = 0; i < sig->param_count; i++)
10974 csig->params [i + 1] = sig->params [i];
10977 /* setup exception param as byref+[out] */
10978 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10979 &mono_defaults.exception_class->byval_arg);
10980 csig->params [param_count - 1]->byref = 1;
10981 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10983 /* convert struct return to object */
10984 if (MONO_TYPE_ISSTRUCT (sig->ret))
10985 csig->ret = &mono_defaults.object_class->byval_arg;
10987 /* local 0 (temp for exception object) */
10988 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10990 /* local 1 (temp for result) */
10991 if (!MONO_TYPE_IS_VOID (sig->ret))
10992 mono_mb_add_local (mb, sig->ret);
10994 /* clear exception arg */
10995 mono_mb_emit_ldarg (mb, param_count - 1);
10996 mono_mb_emit_byte (mb, CEE_LDNULL);
10997 mono_mb_emit_byte (mb, CEE_STIND_REF);
11000 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11001 clause->try_offset = mono_mb_get_label (mb);
11003 /* push method's args */
11004 for (i = 0; i < param_count - 1; i++) {
11008 mono_mb_emit_ldarg (mb, i);
11010 /* get the byval type of the param */
11011 klass = mono_class_from_mono_type (csig->params [i]);
11012 type = &klass->byval_arg;
11014 /* unbox struct args */
11015 if (MONO_TYPE_ISSTRUCT (type)) {
11016 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11018 /* byref args & and the "this" arg must remain a ptr.
11019 Otherwise make a copy of the value type */
11020 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11021 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11023 csig->params [i] = &mono_defaults.object_class->byval_arg;
11028 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11029 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11031 mono_mb_emit_op (mb, CEE_CALL, method);
11033 /* save result at local 1 */
11034 if (!MONO_TYPE_IS_VOID (sig->ret))
11035 mono_mb_emit_stloc (mb, 1);
11037 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11040 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11041 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11042 clause->data.catch_class = mono_defaults.object_class;
11044 clause->handler_offset = mono_mb_get_label (mb);
11046 /* store exception at local 0 */
11047 mono_mb_emit_stloc (mb, 0);
11048 mono_mb_emit_ldarg (mb, param_count - 1);
11049 mono_mb_emit_ldloc (mb, 0);
11050 mono_mb_emit_byte (mb, CEE_STIND_REF);
11051 mono_mb_emit_branch (mb, CEE_LEAVE);
11053 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11055 mono_mb_set_clauses (mb, 1, clause);
11057 mono_mb_patch_branch (mb, pos_leave);
11060 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11061 mono_mb_emit_ldloc (mb, 1);
11063 /* box the return value */
11064 if (MONO_TYPE_ISSTRUCT (sig->ret))
11065 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11068 mono_mb_emit_byte (mb, CEE_RET);
11070 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11077 * mono_marshal_free_dynamic_wrappers:
11079 * Free wrappers of the dynamic method METHOD.
11082 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11084 g_assert (method->dynamic);
11086 mono_marshal_lock ();
11088 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11089 * they could be shared with other methods ?
11091 if (method->klass->image->runtime_invoke_direct_cache)
11092 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11093 mono_marshal_unlock ();
11097 * mono_marshal_free_inflated_wrappers:
11099 * Free wrappers of the inflated method METHOD.
11103 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11105 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11106 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11108 return mono_metadata_signature_equal (pair->sig, sig);
11112 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11114 MonoMethodSignature *sig = method->signature;
11116 g_assert (method->is_inflated);
11118 /* Ignore calls occuring late during cleanup. */
11119 if (!marshal_mutex_initialized)
11122 mono_marshal_lock ();
11124 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11125 * they could be shared with other methods ?
11129 * indexed by MonoMethodSignature
11131 /* FIXME: This could remove unrelated wrappers as well */
11132 if (sig && method->klass->image->delegate_begin_invoke_cache)
11133 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11134 if (sig && method->klass->image->delegate_end_invoke_cache)
11135 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11136 if (sig && method->klass->image->delegate_invoke_cache)
11137 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11138 if (sig && method->klass->image->runtime_invoke_cache)
11139 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11142 * indexed by SignatureMethodPair
11144 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11145 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11146 signature_method_pair_matches_signature, (gpointer)sig);
11149 * indexed by MonoMethod pointers
11151 if (method->klass->image->runtime_invoke_direct_cache)
11152 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11153 if (method->klass->image->managed_wrapper_cache)
11154 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11155 if (method->klass->image->native_wrapper_cache)
11156 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11157 if (method->klass->image->remoting_invoke_cache)
11158 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11159 if (method->klass->image->synchronized_cache)
11160 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11161 if (method->klass->image->unbox_wrapper_cache)
11162 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11163 if (method->klass->image->cominterop_invoke_cache)
11164 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11165 if (method->klass->image->cominterop_wrapper_cache)
11166 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11167 if (method->klass->image->thunk_invoke_cache)
11168 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11170 mono_marshal_unlock ();