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 && mono_framework_version () >= 2) {
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 if (t->type == MONO_TYPE_GENERICINST)
4031 return &mono_defaults.int_class->byval_arg;
4034 if (MONO_TYPE_IS_REFERENCE (t))
4035 return &mono_defaults.object_class->byval_arg;
4038 /* The result needs to be boxed */
4044 return &mono_defaults.sbyte_class->byval_arg;
4046 return &mono_defaults.int16_class->byval_arg;
4048 return &mono_defaults.int32_class->byval_arg;
4050 return &mono_defaults.int64_class->byval_arg;
4051 case MONO_TYPE_BOOLEAN:
4052 return &mono_defaults.sbyte_class->byval_arg;
4053 case MONO_TYPE_CHAR:
4054 return &mono_defaults.int16_class->byval_arg;
4057 return &mono_defaults.int_class->byval_arg;
4058 case MONO_TYPE_VALUETYPE:
4059 if (t->data.klass->enumtype) {
4060 t = mono_class_enum_basetype (t->data.klass);
4070 * mono_marshal_get_runtime_invoke_sig:
4072 * Return a common signature used for sharing runtime invoke wrappers.
4074 static MonoMethodSignature*
4075 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4077 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4080 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4081 for (i = 0; i < res->param_count; ++i)
4082 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4088 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4090 /* Can't share wrappers which return a vtype since it needs to be boxed */
4091 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))
4094 return mono_metadata_signature_equal (sig1, sig2);
4098 * generates IL code for the runtime invoke function
4099 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4101 * we also catch exceptions if exc != null
4102 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4103 * it means that the compiled code for METHOD does not have to be looked up
4104 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4105 * its METHOD argument.
4108 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4110 MonoMethodSignature *sig, *csig, *callsig;
4111 MonoExceptionClause *clause;
4112 MonoMethodBuilder *mb;
4113 GHashTable *cache = NULL;
4114 MonoClass *target_klass;
4115 MonoMethod *res = NULL;
4116 static MonoString *string_dummy = NULL;
4117 static MonoMethodSignature *cctor_signature = NULL;
4118 static MonoMethodSignature *finalize_signature = NULL;
4121 gboolean need_direct_wrapper = FALSE;
4122 int *tmp_nullable_locals;
4126 if (!cctor_signature) {
4127 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4128 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4130 if (!finalize_signature) {
4131 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4132 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4133 finalize_signature->hasthis = 1;
4137 need_direct_wrapper = TRUE;
4140 * Use a separate cache indexed by methods to speed things up and to avoid the
4141 * boundless mempool growth caused by the signature_dup stuff below.
4144 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4146 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4147 res = mono_marshal_find_in_cache (cache, method);
4151 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4152 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4154 * Array Get/Set/Address methods. The JIT implements them using inline code
4155 * so we need to create an invoke wrapper which calls the method directly.
4157 need_direct_wrapper = TRUE;
4160 if (method->string_ctor) {
4161 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4163 callsig = add_string_ctor_signature (method);
4164 /* Can't share this as we push a string as this */
4165 need_direct_wrapper = TRUE;
4167 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4169 * Valuetype methods receive a managed pointer as the this argument.
4170 * Create a new signature to reflect this.
4172 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4173 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4174 need_direct_wrapper = TRUE;
4176 if (method->dynamic)
4177 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4179 callsig = mono_method_signature (method);
4184 /* Vtypes/nullables/Byrefs cause too many problems */
4185 for (i = 0; i < callsig->param_count; ++i) {
4186 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4187 need_direct_wrapper = TRUE;
4192 * We try to share runtime invoke wrappers between different methods but have to
4193 * be careful about methods whose klass has a type cctor, since putting the wrapper
4194 * into that klass would mean that calling a method of klass A might invoke the
4195 * type initializer of class B, or throw an exception if the type initializer
4196 * was called before and failed. See #349621 for an example.
4197 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4199 if (method->klass->image == mono_defaults.corlib)
4200 target_klass = mono_defaults.object_class;
4202 /* Try to share wrappers for non-corlib methods with simple signatures */
4203 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4204 callsig = cctor_signature;
4205 target_klass = mono_defaults.object_class;
4206 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4207 callsig = finalize_signature;
4208 target_klass = mono_defaults.object_class;
4210 // FIXME: This breaks too many things
4212 if (mono_class_get_cctor (method->klass))
4213 need_direct_wrapper = TRUE;
4216 target_klass = get_wrapper_target_class (method->klass->image);
4220 if (need_direct_wrapper) {
4221 /* Already searched at the start */
4223 MonoMethodSignature *tmp_sig;
4225 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4227 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4228 (GHashFunc)mono_signature_hash,
4229 (GCompareFunc)runtime_invoke_signature_equal);
4231 /* from mono_marshal_find_in_cache */
4232 mono_marshal_lock ();
4233 res = g_hash_table_lookup (cache, callsig);
4234 mono_marshal_unlock ();
4241 /* Make a copy of the signature from the image mempool */
4243 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4247 /* to make it work with our special string constructors */
4248 if (!string_dummy) {
4249 MONO_GC_REGISTER_ROOT (string_dummy);
4250 string_dummy = mono_string_new_wrapper ("dummy");
4253 sig = mono_method_signature (method);
4255 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4257 csig->ret = &mono_defaults.object_class->byval_arg;
4258 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4259 csig->params [0] = callsig->params [0];
4261 csig->params [0] = &mono_defaults.object_class->byval_arg;
4262 csig->params [1] = &mono_defaults.int_class->byval_arg;
4263 csig->params [2] = &mono_defaults.int_class->byval_arg;
4264 csig->params [3] = &mono_defaults.int_class->byval_arg;
4266 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4267 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4270 /* allocate local 0 (object) tmp */
4271 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4272 /* allocate local 1 (object) exc */
4273 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4275 /* cond set *exc to null */
4276 mono_mb_emit_byte (mb, CEE_LDARG_2);
4277 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4278 mono_mb_emit_byte (mb, 3);
4279 mono_mb_emit_byte (mb, CEE_LDARG_2);
4280 mono_mb_emit_byte (mb, CEE_LDNULL);
4281 mono_mb_emit_byte (mb, CEE_STIND_REF);
4283 emit_thread_force_interrupt_checkpoint (mb);
4286 g_assert (sig->hasthis);
4287 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4291 if (method->string_ctor) {
4292 mono_mb_emit_ptr (mb, string_dummy);
4294 mono_mb_emit_ldarg (mb, 0);
4298 tmp_nullable_locals = g_new0 (int, sig->param_count);
4300 for (i = 0; i < sig->param_count; i++) {
4301 MonoType *t = sig->params [i];
4304 mono_mb_emit_ldarg (mb, 1);
4306 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4307 mono_mb_emit_byte (mb, CEE_ADD);
4311 mono_mb_emit_byte (mb, CEE_LDIND_I);
4312 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4313 * So to make this work we unbox it to a local variablee and push a reference to that.
4315 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4316 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4318 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4319 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4320 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4325 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4326 type = sig->params [i]->type;
4330 case MONO_TYPE_BOOLEAN:
4334 case MONO_TYPE_CHAR:
4343 mono_mb_emit_byte (mb, CEE_LDIND_I);
4344 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4346 case MONO_TYPE_STRING:
4347 case MONO_TYPE_CLASS:
4348 case MONO_TYPE_ARRAY:
4350 case MONO_TYPE_SZARRAY:
4351 case MONO_TYPE_OBJECT:
4352 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4354 case MONO_TYPE_GENERICINST:
4355 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4356 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4361 case MONO_TYPE_VALUETYPE:
4362 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4363 type = mono_class_enum_basetype (t->data.klass)->type;
4366 mono_mb_emit_byte (mb, CEE_LDIND_I);
4367 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4368 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4369 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4370 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4372 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4376 g_assert_not_reached ();
4381 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4382 } else if (need_direct_wrapper) {
4383 mono_mb_emit_op (mb, CEE_CALL, method);
4385 mono_mb_emit_ldarg (mb, 3);
4386 mono_mb_emit_calli (mb, callsig);
4389 if (sig->ret->byref) {
4391 g_assert_not_reached ();
4394 switch (sig->ret->type) {
4395 case MONO_TYPE_VOID:
4396 if (!method->string_ctor)
4397 mono_mb_emit_byte (mb, CEE_LDNULL);
4399 case MONO_TYPE_BOOLEAN:
4400 case MONO_TYPE_CHAR:
4413 case MONO_TYPE_VALUETYPE:
4414 case MONO_TYPE_TYPEDBYREF:
4415 case MONO_TYPE_GENERICINST:
4416 /* box value types */
4417 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4419 case MONO_TYPE_STRING:
4420 case MONO_TYPE_CLASS:
4421 case MONO_TYPE_ARRAY:
4422 case MONO_TYPE_SZARRAY:
4423 case MONO_TYPE_OBJECT:
4427 /* The result is an IntPtr */
4428 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4431 g_assert_not_reached ();
4434 mono_mb_emit_stloc (mb, 0);
4436 /* Convert back nullable-byref arguments */
4437 for (i = 0; i < sig->param_count; i++) {
4438 MonoType *t = sig->params [i];
4441 * Box the result and put it back into the array, the caller will have
4442 * to obtain it from there.
4444 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4445 mono_mb_emit_ldarg (mb, 1);
4446 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4447 mono_mb_emit_byte (mb, CEE_ADD);
4449 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4450 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4452 mono_mb_emit_byte (mb, CEE_STIND_REF);
4456 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4458 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4459 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4460 clause->try_len = mono_mb_get_label (mb);
4463 clause->data.filter_offset = mono_mb_get_label (mb);
4465 mono_mb_emit_byte (mb, CEE_POP);
4466 mono_mb_emit_byte (mb, CEE_LDARG_2);
4467 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4468 mono_mb_emit_byte (mb, CEE_PREFIX1);
4469 mono_mb_emit_byte (mb, CEE_CGT_UN);
4470 mono_mb_emit_byte (mb, CEE_PREFIX1);
4471 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4473 clause->handler_offset = mono_mb_get_label (mb);
4476 /* store exception */
4477 mono_mb_emit_stloc (mb, 1);
4479 mono_mb_emit_byte (mb, CEE_LDARG_2);
4480 mono_mb_emit_ldloc (mb, 1);
4481 mono_mb_emit_byte (mb, CEE_STIND_REF);
4483 mono_mb_emit_byte (mb, CEE_LDNULL);
4484 mono_mb_emit_stloc (mb, 0);
4486 mono_mb_emit_branch (mb, CEE_LEAVE);
4488 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4490 mono_mb_set_clauses (mb, 1, clause);
4493 mono_mb_patch_branch (mb, pos);
4494 mono_mb_emit_ldloc (mb, 0);
4495 mono_mb_emit_byte (mb, CEE_RET);
4497 g_free (tmp_nullable_locals);
4499 if (need_direct_wrapper) {
4500 mb->skip_visibility = 1;
4501 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4503 /* taken from mono_mb_create_and_cache */
4504 mono_marshal_lock ();
4505 res = g_hash_table_lookup (cache, callsig);
4506 mono_marshal_unlock ();
4508 /* Somebody may have created it before us */
4511 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4513 mono_marshal_lock ();
4514 res = g_hash_table_lookup (cache, callsig);
4517 g_hash_table_insert (cache, callsig, res);
4518 /* Can't insert it into wrapper_hash since the key is a signature */
4519 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4521 mono_free_method (newm);
4523 mono_marshal_unlock ();
4526 /* end mono_mb_create_and_cache */
4535 * mono_marshal_get_runtime_invoke_dynamic:
4537 * Return a method which can be used to invoke managed methods from native code
4539 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4540 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4541 * ARGS should point to an architecture specific structure containing
4542 * the arguments and space for the return value.
4543 * The other arguments are the same as for runtime_invoke (), except that
4544 * ARGS should contain the this argument too.
4545 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4546 * is only one copy of it, which is useful in full-aot.
4549 mono_marshal_get_runtime_invoke_dynamic (void)
4551 static MonoMethod *method;
4552 MonoMethodSignature *csig;
4553 MonoExceptionClause *clause;
4554 MonoMethodBuilder *mb;
4561 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4563 csig->ret = &mono_defaults.void_class->byval_arg;
4564 csig->params [0] = &mono_defaults.int_class->byval_arg;
4565 csig->params [1] = &mono_defaults.int_class->byval_arg;
4566 csig->params [2] = &mono_defaults.int_class->byval_arg;
4567 csig->params [3] = &mono_defaults.int_class->byval_arg;
4569 name = g_strdup ("runtime_invoke_dynamic");
4570 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4573 /* allocate local 0 (object) tmp */
4574 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4575 /* allocate local 1 (object) exc */
4576 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4578 /* cond set *exc to null */
4579 mono_mb_emit_byte (mb, CEE_LDARG_1);
4580 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4581 mono_mb_emit_byte (mb, 3);
4582 mono_mb_emit_byte (mb, CEE_LDARG_1);
4583 mono_mb_emit_byte (mb, CEE_LDNULL);
4584 mono_mb_emit_byte (mb, CEE_STIND_REF);
4586 emit_thread_force_interrupt_checkpoint (mb);
4588 mono_mb_emit_byte (mb, CEE_LDARG_0);
4589 mono_mb_emit_byte (mb, CEE_LDARG_2);
4590 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4591 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4593 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4595 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4596 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4597 clause->try_len = mono_mb_get_label (mb);
4600 clause->data.filter_offset = mono_mb_get_label (mb);
4602 mono_mb_emit_byte (mb, CEE_POP);
4603 mono_mb_emit_byte (mb, CEE_LDARG_1);
4604 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4605 mono_mb_emit_byte (mb, CEE_PREFIX1);
4606 mono_mb_emit_byte (mb, CEE_CGT_UN);
4607 mono_mb_emit_byte (mb, CEE_PREFIX1);
4608 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4610 clause->handler_offset = mono_mb_get_label (mb);
4613 /* store exception */
4614 mono_mb_emit_stloc (mb, 1);
4616 mono_mb_emit_byte (mb, CEE_LDARG_1);
4617 mono_mb_emit_ldloc (mb, 1);
4618 mono_mb_emit_byte (mb, CEE_STIND_REF);
4620 mono_mb_emit_byte (mb, CEE_LDNULL);
4621 mono_mb_emit_stloc (mb, 0);
4623 /* Check for the abort exception */
4624 mono_mb_emit_ldloc (mb, 1);
4625 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4626 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4628 /* Delay the abort exception */
4629 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4631 mono_mb_patch_short_branch (mb, posna);
4632 mono_mb_emit_branch (mb, CEE_LEAVE);
4634 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4636 mono_mb_set_clauses (mb, 1, clause);
4639 mono_mb_patch_branch (mb, pos);
4640 //mono_mb_emit_ldloc (mb, 0);
4641 mono_mb_emit_byte (mb, CEE_RET);
4643 mono_loader_lock ();
4644 /* double-checked locking */
4646 method = mono_mb_create_method (mb, csig, 16);
4648 mono_loader_unlock ();
4656 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4658 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4659 klass->name_space, klass->name);
4661 mono_mb_emit_exception_marshal_directive (mb, msg);
4665 * mono_marshal_get_ldfld_remote_wrapper:
4666 * @klass: The return type
4668 * This method generates a wrapper for calling mono_load_remote_field_new.
4669 * The return type is ignored for now, as mono_load_remote_field_new () always
4670 * returns an object. In the future, to optimize some codepaths, we might
4671 * call a different function that takes a pointer to a valuetype, instead.
4674 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4676 MonoMethodSignature *sig, *csig;
4677 MonoMethodBuilder *mb;
4679 static MonoMethod* cached = NULL;
4681 mono_marshal_lock ();
4683 mono_marshal_unlock ();
4686 mono_marshal_unlock ();
4688 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4690 mb->method->save_lmf = 1;
4692 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4693 sig->params [0] = &mono_defaults.object_class->byval_arg;
4694 sig->params [1] = &mono_defaults.int_class->byval_arg;
4695 sig->params [2] = &mono_defaults.int_class->byval_arg;
4696 sig->ret = &mono_defaults.object_class->byval_arg;
4698 mono_mb_emit_ldarg (mb, 0);
4699 mono_mb_emit_ldarg (mb, 1);
4700 mono_mb_emit_ldarg (mb, 2);
4702 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4703 csig->params [0] = &mono_defaults.object_class->byval_arg;
4704 csig->params [1] = &mono_defaults.int_class->byval_arg;
4705 csig->params [2] = &mono_defaults.int_class->byval_arg;
4706 csig->ret = &mono_defaults.object_class->byval_arg;
4709 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4710 emit_thread_interrupt_checkpoint (mb);
4712 mono_mb_emit_byte (mb, CEE_RET);
4714 mono_marshal_lock ();
4716 mono_marshal_unlock ();
4719 newm = mono_mb_create_method (mb, sig, 4);
4720 mono_marshal_lock ();
4725 mono_marshal_unlock ();
4727 mono_marshal_unlock ();
4728 mono_free_method (newm);
4737 * mono_marshal_get_ldfld_wrapper:
4738 * @type: the type of the field
4740 * This method generates a function which can be use to load a field with type
4741 * @type from an object. The generated function has the following signature:
4742 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4745 mono_marshal_get_ldfld_wrapper (MonoType *type)
4747 MonoMethodSignature *sig;
4748 MonoMethodBuilder *mb;
4753 int t, pos0, pos1 = 0;
4755 type = mono_type_get_underlying_type (type);
4760 if (type->type == MONO_TYPE_SZARRAY) {
4761 klass = mono_defaults.array_class;
4762 } else if (type->type == MONO_TYPE_VALUETYPE) {
4763 klass = type->data.klass;
4764 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4765 klass = mono_defaults.object_class;
4766 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4767 klass = mono_defaults.int_class;
4768 } else if (t == MONO_TYPE_GENERICINST) {
4769 if (mono_type_generic_inst_is_valuetype (type))
4770 klass = mono_class_from_mono_type (type);
4772 klass = mono_defaults.object_class;
4774 klass = mono_class_from_mono_type (type);
4777 klass = mono_defaults.int_class;
4780 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4781 if ((res = mono_marshal_find_in_cache (cache, klass)))
4784 /* we add the %p pointer value of klass because class names are not unique */
4785 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4786 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4789 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4790 sig->params [0] = &mono_defaults.object_class->byval_arg;
4791 sig->params [1] = &mono_defaults.int_class->byval_arg;
4792 sig->params [2] = &mono_defaults.int_class->byval_arg;
4793 sig->params [3] = &mono_defaults.int_class->byval_arg;
4794 sig->ret = &klass->byval_arg;
4796 mono_mb_emit_ldarg (mb, 0);
4797 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4799 mono_mb_emit_ldarg (mb, 0);
4800 mono_mb_emit_ldarg (mb, 1);
4801 mono_mb_emit_ldarg (mb, 2);
4803 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4806 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4807 csig->params [0] = &mono_defaults.object_class->byval_arg;
4808 csig->params [1] = &mono_defaults.int_class->byval_arg;
4809 csig->params [2] = &mono_defaults.int_class->byval_arg;
4810 csig->ret = &klass->this_arg;
4813 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4814 emit_thread_interrupt_checkpoint (mb);
4817 if (klass->valuetype) {
4818 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4819 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4821 mono_mb_emit_byte (mb, CEE_RET);
4825 mono_mb_patch_branch (mb, pos0);
4827 mono_mb_emit_ldarg (mb, 0);
4828 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4829 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4830 mono_mb_emit_ldarg (mb, 3);
4831 mono_mb_emit_byte (mb, CEE_ADD);
4833 if (klass->valuetype)
4834 mono_mb_patch_branch (mb, pos1);
4839 case MONO_TYPE_BOOLEAN:
4840 case MONO_TYPE_CHAR:
4849 case MONO_TYPE_ARRAY:
4850 case MONO_TYPE_SZARRAY:
4851 case MONO_TYPE_OBJECT:
4852 case MONO_TYPE_CLASS:
4853 case MONO_TYPE_STRING:
4857 case MONO_TYPE_FNPTR:
4858 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4860 case MONO_TYPE_VALUETYPE:
4861 g_assert (!klass->enumtype);
4862 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4864 case MONO_TYPE_GENERICINST:
4865 if (mono_type_generic_inst_is_valuetype (type)) {
4866 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4868 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4872 g_warning ("type %x not implemented", type->type);
4873 g_assert_not_reached ();
4876 mono_mb_emit_byte (mb, CEE_RET);
4878 res = mono_mb_create_and_cache (cache, klass,
4879 mb, sig, sig->param_count + 16);
4886 * mono_marshal_get_ldflda_wrapper:
4887 * @type: the type of the field
4889 * This method generates a function which can be used to load a field address
4890 * from an object. The generated function has the following signature:
4891 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4894 mono_marshal_get_ldflda_wrapper (MonoType *type)
4896 MonoMethodSignature *sig;
4897 MonoMethodBuilder *mb;
4902 int t, pos0, pos1, pos2, pos3;
4904 type = mono_type_get_underlying_type (type);
4908 if (type->type == MONO_TYPE_SZARRAY) {
4909 klass = mono_defaults.array_class;
4910 } else if (type->type == MONO_TYPE_VALUETYPE) {
4911 klass = type->data.klass;
4912 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4913 t == MONO_TYPE_CLASS) {
4914 klass = mono_defaults.object_class;
4915 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4916 klass = mono_defaults.int_class;
4917 } else if (t == MONO_TYPE_GENERICINST) {
4918 if (mono_type_generic_inst_is_valuetype (type))
4919 klass = mono_class_from_mono_type (type);
4921 klass = mono_defaults.object_class;
4923 klass = mono_class_from_mono_type (type);
4926 klass = mono_defaults.int_class;
4929 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4930 if ((res = mono_marshal_find_in_cache (cache, klass)))
4933 /* we add the %p pointer value of klass because class names are not unique */
4934 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4935 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4938 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4939 sig->params [0] = &mono_defaults.object_class->byval_arg;
4940 sig->params [1] = &mono_defaults.int_class->byval_arg;
4941 sig->params [2] = &mono_defaults.int_class->byval_arg;
4942 sig->params [3] = &mono_defaults.int_class->byval_arg;
4943 sig->ret = &mono_defaults.int_class->byval_arg;
4945 /* if typeof (this) != transparent_proxy goto pos0 */
4946 mono_mb_emit_ldarg (mb, 0);
4947 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4949 /* if same_appdomain goto pos1 */
4950 mono_mb_emit_ldarg (mb, 0);
4951 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4953 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4955 /* same app domain */
4956 mono_mb_patch_branch (mb, pos1);
4958 /* if typeof (this) != contextbound goto pos2 */
4959 mono_mb_emit_ldarg (mb, 0);
4960 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4962 /* if this->rp->context == mono_context_get goto pos3 */
4963 mono_mb_emit_ldarg (mb, 0);
4964 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4965 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4966 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4967 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4968 mono_mb_emit_icall (mb, mono_context_get);
4969 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4971 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4973 mono_mb_patch_branch (mb, pos2);
4974 mono_mb_patch_branch (mb, pos3);
4976 /* return the address of the field from this->rp->unwrapped_server */
4977 mono_mb_emit_ldarg (mb, 0);
4978 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4979 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4980 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4981 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4982 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4983 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4984 mono_mb_emit_ldarg (mb, 3);
4985 mono_mb_emit_byte (mb, CEE_ADD);
4986 mono_mb_emit_byte (mb, CEE_RET);
4988 /* not a proxy: return the address of the field directly */
4989 mono_mb_patch_branch (mb, pos0);
4991 mono_mb_emit_ldarg (mb, 0);
4992 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4993 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4994 mono_mb_emit_ldarg (mb, 3);
4995 mono_mb_emit_byte (mb, CEE_ADD);
4997 mono_mb_emit_byte (mb, CEE_RET);
4999 res = mono_mb_create_and_cache (cache, klass,
5000 mb, sig, sig->param_count + 16);
5007 * mono_marshal_get_stfld_remote_wrapper:
5008 * klass: The type of the field
5010 * This function generates a wrapper for calling mono_store_remote_field_new
5011 * with the appropriate signature.
5012 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5013 * klass argument anymore.
5016 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5018 MonoMethodSignature *sig, *csig;
5019 MonoMethodBuilder *mb;
5021 static MonoMethod *cached = NULL;
5023 mono_marshal_lock ();
5025 mono_marshal_unlock ();
5028 mono_marshal_unlock ();
5030 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5032 mb->method->save_lmf = 1;
5034 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5035 sig->params [0] = &mono_defaults.object_class->byval_arg;
5036 sig->params [1] = &mono_defaults.int_class->byval_arg;
5037 sig->params [2] = &mono_defaults.int_class->byval_arg;
5038 sig->params [3] = &mono_defaults.object_class->byval_arg;
5039 sig->ret = &mono_defaults.void_class->byval_arg;
5041 mono_mb_emit_ldarg (mb, 0);
5042 mono_mb_emit_ldarg (mb, 1);
5043 mono_mb_emit_ldarg (mb, 2);
5044 mono_mb_emit_ldarg (mb, 3);
5046 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5047 csig->params [0] = &mono_defaults.object_class->byval_arg;
5048 csig->params [1] = &mono_defaults.int_class->byval_arg;
5049 csig->params [2] = &mono_defaults.int_class->byval_arg;
5050 csig->params [3] = &mono_defaults.object_class->byval_arg;
5051 csig->ret = &mono_defaults.void_class->byval_arg;
5054 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5055 emit_thread_interrupt_checkpoint (mb);
5057 mono_mb_emit_byte (mb, CEE_RET);
5059 mono_marshal_lock ();
5061 mono_marshal_unlock ();
5064 newm = mono_mb_create_method (mb, sig, 6);
5065 mono_marshal_lock ();
5070 mono_marshal_unlock ();
5072 mono_marshal_unlock ();
5073 mono_free_method (newm);
5082 * mono_marshal_get_stfld_wrapper:
5083 * @type: the type of the field
5085 * This method generates a function which can be use to store a field with type
5086 * @type. The generated function has the following signature:
5087 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5090 mono_marshal_get_stfld_wrapper (MonoType *type)
5092 MonoMethodSignature *sig;
5093 MonoMethodBuilder *mb;
5100 type = mono_type_get_underlying_type (type);
5104 if (type->type == MONO_TYPE_SZARRAY) {
5105 klass = mono_defaults.array_class;
5106 } else if (type->type == MONO_TYPE_VALUETYPE) {
5107 klass = type->data.klass;
5108 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5109 klass = mono_defaults.object_class;
5110 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5111 klass = mono_defaults.int_class;
5112 } else if (t == MONO_TYPE_GENERICINST) {
5113 if (mono_type_generic_inst_is_valuetype (type))
5114 klass = mono_class_from_mono_type (type);
5116 klass = mono_defaults.object_class;
5118 klass = mono_class_from_mono_type (type);
5121 klass = mono_defaults.int_class;
5124 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5125 if ((res = mono_marshal_find_in_cache (cache, klass)))
5128 /* we add the %p pointer value of klass because class names are not unique */
5129 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5130 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5133 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5134 sig->params [0] = &mono_defaults.object_class->byval_arg;
5135 sig->params [1] = &mono_defaults.int_class->byval_arg;
5136 sig->params [2] = &mono_defaults.int_class->byval_arg;
5137 sig->params [3] = &mono_defaults.int_class->byval_arg;
5138 sig->params [4] = &klass->byval_arg;
5139 sig->ret = &mono_defaults.void_class->byval_arg;
5141 mono_mb_emit_ldarg (mb, 0);
5142 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5144 mono_mb_emit_ldarg (mb, 0);
5145 mono_mb_emit_ldarg (mb, 1);
5146 mono_mb_emit_ldarg (mb, 2);
5147 mono_mb_emit_ldarg (mb, 4);
5148 if (klass->valuetype)
5149 mono_mb_emit_op (mb, CEE_BOX, klass);
5151 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5153 mono_mb_emit_byte (mb, CEE_RET);
5155 mono_mb_patch_branch (mb, pos);
5157 mono_mb_emit_ldarg (mb, 0);
5158 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5159 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5160 mono_mb_emit_ldarg (mb, 3);
5161 mono_mb_emit_byte (mb, CEE_ADD);
5162 mono_mb_emit_ldarg (mb, 4);
5167 case MONO_TYPE_BOOLEAN:
5168 case MONO_TYPE_CHAR:
5177 case MONO_TYPE_ARRAY:
5178 case MONO_TYPE_SZARRAY:
5179 case MONO_TYPE_OBJECT:
5180 case MONO_TYPE_CLASS:
5181 case MONO_TYPE_STRING:
5185 case MONO_TYPE_FNPTR:
5186 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5188 case MONO_TYPE_VALUETYPE:
5189 g_assert (!klass->enumtype);
5190 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5192 case MONO_TYPE_GENERICINST:
5193 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5196 g_warning ("type %x not implemented", type->type);
5197 g_assert_not_reached ();
5200 mono_mb_emit_byte (mb, CEE_RET);
5202 res = mono_mb_create_and_cache (cache, klass,
5203 mb, sig, sig->param_count + 16);
5210 * generates IL code for the icall wrapper (the generated method
5211 * calls the unmanaged code in func)
5214 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5216 MonoMethodSignature *csig, *csig2;
5217 MonoMethodBuilder *mb;
5221 g_assert (sig->pinvoke);
5223 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5225 mb->method->save_lmf = 1;
5227 /* Add an explicit this argument */
5229 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5231 csig2 = signature_dup (mono_defaults.corlib, sig);
5234 mono_mb_emit_byte (mb, CEE_LDARG_0);
5236 for (i = 0; i < sig->param_count; i++)
5237 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5239 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5240 if (check_exceptions)
5241 emit_thread_interrupt_checkpoint (mb);
5242 mono_mb_emit_byte (mb, CEE_RET);
5244 csig = signature_dup (mono_defaults.corlib, sig);
5246 if (csig->call_convention == MONO_CALL_VARARG)
5247 csig->call_convention = 0;
5249 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5256 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5257 MonoMarshalSpec *spec,
5258 int conv_arg, MonoType **conv_arg_type,
5259 MarshalAction action)
5263 static MonoClass *ICustomMarshaler = NULL;
5264 static MonoMethod *cleanup_native, *cleanup_managed;
5265 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5266 MonoMethod *get_instance;
5267 MonoMethodBuilder *mb = m->mb;
5268 char *exception_msg = NULL;
5272 if (!ICustomMarshaler) {
5273 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5274 g_assert (ICustomMarshaler);
5276 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5277 g_assert (cleanup_native);
5278 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5279 g_assert (cleanup_managed);
5280 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5281 g_assert (marshal_managed_to_native);
5282 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5283 g_assert (marshal_native_to_managed);
5286 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5287 g_assert (mtype != NULL);
5288 mklass = mono_class_from_mono_type (mtype);
5289 g_assert (mklass != NULL);
5291 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5292 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5294 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5296 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5297 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5298 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5299 (get_sig->params [0]->type != MONO_TYPE_STRING))
5300 get_instance = NULL;
5304 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);
5306 /* Throw exception and emit compensation code if neccesary */
5307 if (exception_msg) {
5309 case MARSHAL_ACTION_CONV_IN:
5310 case MARSHAL_ACTION_CONV_RESULT:
5311 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5312 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5313 mono_mb_emit_byte (mb, CEE_POP);
5315 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5316 g_free (exception_msg);
5319 case MARSHAL_ACTION_PUSH:
5320 mono_mb_emit_byte (mb, CEE_LDNULL);
5328 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5329 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5332 case MARSHAL_ACTION_CONV_IN:
5334 case MONO_TYPE_CLASS:
5335 case MONO_TYPE_OBJECT:
5336 case MONO_TYPE_STRING:
5337 case MONO_TYPE_ARRAY:
5338 case MONO_TYPE_SZARRAY:
5339 case MONO_TYPE_VALUETYPE:
5343 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5344 g_assert_not_reached ();
5348 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5350 mono_mb_emit_byte (mb, CEE_LDNULL);
5351 mono_mb_emit_stloc (mb, conv_arg);
5353 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5356 /* Minic MS.NET behavior */
5357 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5360 /* Check for null */
5361 mono_mb_emit_ldarg (mb, argnum);
5363 mono_mb_emit_byte (mb, CEE_LDIND_I);
5364 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5366 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5368 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5370 mono_mb_emit_ldarg (mb, argnum);
5372 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5374 if (t->type == MONO_TYPE_VALUETYPE) {
5376 * Since we can't determine the type of the argument, we
5377 * will assume the unmanaged function takes a pointer.
5379 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5381 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5384 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5385 mono_mb_emit_stloc (mb, conv_arg);
5387 mono_mb_patch_branch (mb, pos2);
5390 case MARSHAL_ACTION_CONV_OUT:
5391 /* Check for null */
5392 mono_mb_emit_ldloc (mb, conv_arg);
5393 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5396 mono_mb_emit_ldarg (mb, argnum);
5398 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5400 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5402 mono_mb_emit_ldloc (mb, conv_arg);
5403 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5404 mono_mb_emit_byte (mb, CEE_STIND_REF);
5405 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5406 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5408 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5410 mono_mb_emit_ldloc (mb, conv_arg);
5411 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5413 /* We have nowhere to store the result */
5414 mono_mb_emit_byte (mb, CEE_POP);
5417 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5419 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5421 mono_mb_emit_ldloc (mb, conv_arg);
5423 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5425 mono_mb_patch_branch (mb, pos2);
5428 case MARSHAL_ACTION_PUSH:
5430 mono_mb_emit_ldloc_addr (mb, conv_arg);
5432 mono_mb_emit_ldloc (mb, conv_arg);
5435 case MARSHAL_ACTION_CONV_RESULT:
5436 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5438 mono_mb_emit_stloc (mb, 3);
5440 mono_mb_emit_ldloc (mb, 3);
5441 mono_mb_emit_stloc (mb, loc1);
5443 /* Check for null */
5444 mono_mb_emit_ldloc (mb, 3);
5445 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5447 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5449 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5450 mono_mb_emit_byte (mb, CEE_DUP);
5452 mono_mb_emit_ldloc (mb, 3);
5453 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5454 mono_mb_emit_stloc (mb, 3);
5456 mono_mb_emit_ldloc (mb, loc1);
5457 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5459 mono_mb_patch_branch (mb, pos2);
5462 case MARSHAL_ACTION_MANAGED_CONV_IN:
5463 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5465 mono_mb_emit_byte (mb, CEE_LDNULL);
5466 mono_mb_emit_stloc (mb, conv_arg);
5468 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5471 /* Check for null */
5472 mono_mb_emit_ldarg (mb, argnum);
5474 mono_mb_emit_byte (mb, CEE_LDIND_I);
5475 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5477 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5478 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5480 mono_mb_emit_ldarg (mb, argnum);
5482 mono_mb_emit_byte (mb, CEE_LDIND_I);
5484 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5485 mono_mb_emit_stloc (mb, conv_arg);
5487 mono_mb_patch_branch (mb, pos2);
5490 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5491 g_assert (!t->byref);
5493 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5495 mono_mb_emit_stloc (mb, 3);
5497 mono_mb_emit_ldloc (mb, 3);
5498 mono_mb_emit_stloc (mb, loc1);
5500 /* Check for null */
5501 mono_mb_emit_ldloc (mb, 3);
5502 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5504 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5505 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5506 mono_mb_emit_byte (mb, CEE_DUP);
5508 mono_mb_emit_ldloc (mb, 3);
5509 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5510 mono_mb_emit_stloc (mb, 3);
5512 mono_mb_emit_ldloc (mb, loc1);
5513 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5515 mono_mb_patch_branch (mb, pos2);
5518 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5520 /* Check for null */
5521 mono_mb_emit_ldloc (mb, conv_arg);
5522 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5525 mono_mb_emit_ldarg (mb, argnum);
5527 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5529 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5531 mono_mb_emit_ldloc (mb, conv_arg);
5532 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5533 mono_mb_emit_byte (mb, CEE_STIND_I);
5536 /* Call CleanUpManagedData */
5537 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5539 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5541 mono_mb_emit_ldloc (mb, conv_arg);
5542 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5544 mono_mb_patch_branch (mb, pos2);
5548 g_assert_not_reached ();
5555 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5556 MonoMarshalSpec *spec,
5557 int conv_arg, MonoType **conv_arg_type,
5558 MarshalAction action)
5560 MonoMethodBuilder *mb = m->mb;
5563 case MARSHAL_ACTION_CONV_IN: {
5564 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5566 g_assert (t->type == MONO_TYPE_OBJECT);
5567 g_assert (!t->byref);
5569 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5570 mono_mb_emit_ldarg (mb, argnum);
5571 mono_mb_emit_icon (mb, encoding);
5572 mono_mb_emit_icon (mb, t->attrs);
5573 mono_mb_emit_icall (mb, mono_marshal_asany);
5574 mono_mb_emit_stloc (mb, conv_arg);
5578 case MARSHAL_ACTION_PUSH:
5579 mono_mb_emit_ldloc (mb, conv_arg);
5582 case MARSHAL_ACTION_CONV_OUT: {
5583 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5585 mono_mb_emit_ldarg (mb, argnum);
5586 mono_mb_emit_ldloc (mb, conv_arg);
5587 mono_mb_emit_icon (mb, encoding);
5588 mono_mb_emit_icon (mb, t->attrs);
5589 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5594 g_assert_not_reached ();
5601 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5602 MonoMarshalSpec *spec,
5603 int conv_arg, MonoType **conv_arg_type,
5604 MarshalAction action)
5606 MonoMethodBuilder *mb = m->mb;
5607 MonoClass *klass, *date_time_class;
5610 klass = mono_class_from_mono_type (t);
5612 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5615 case MARSHAL_ACTION_CONV_IN:
5616 if (klass == date_time_class) {
5617 /* Convert it to an OLE DATE type */
5618 static MonoMethod *to_oadate;
5621 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5622 g_assert (to_oadate);
5624 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5627 mono_mb_emit_ldarg (mb, argnum);
5628 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5631 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5633 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5635 mono_mb_emit_ldarg_addr (mb, argnum);
5636 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5637 mono_mb_emit_stloc (mb, conv_arg);
5641 mono_mb_patch_branch (mb, pos);
5645 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5646 klass->blittable || klass->enumtype)
5649 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5651 /* store the address of the source into local variable 0 */
5653 mono_mb_emit_ldarg (mb, argnum);
5655 mono_mb_emit_ldarg_addr (mb, argnum);
5657 mono_mb_emit_stloc (mb, 0);
5659 /* allocate space for the native struct and
5660 * store the address into local variable 1 (dest) */
5661 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5662 mono_mb_emit_byte (mb, CEE_PREFIX1);
5663 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5664 mono_mb_emit_stloc (mb, conv_arg);
5667 mono_mb_emit_ldloc (mb, 0);
5668 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5671 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5673 mono_mb_emit_ldloc (mb, conv_arg);
5674 mono_mb_emit_stloc (mb, 1);
5676 /* emit valuetype conversion code */
5677 emit_struct_conv (mb, klass, FALSE);
5681 mono_mb_patch_branch (mb, pos);
5684 case MARSHAL_ACTION_PUSH:
5685 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5687 g_assert (!t->byref);
5689 /* Have to change the signature since the vtype is passed byref */
5690 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5692 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5693 klass->blittable || klass->enumtype)
5694 mono_mb_emit_ldarg_addr (mb, argnum);
5696 mono_mb_emit_ldloc (mb, conv_arg);
5700 if (klass == date_time_class) {
5702 mono_mb_emit_ldloc_addr (mb, conv_arg);
5704 mono_mb_emit_ldloc (mb, conv_arg);
5708 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5709 klass->blittable || klass->enumtype) {
5710 mono_mb_emit_ldarg (mb, argnum);
5713 mono_mb_emit_ldloc (mb, conv_arg);
5715 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5716 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5720 case MARSHAL_ACTION_CONV_OUT:
5721 if (klass == date_time_class) {
5722 /* Convert from an OLE DATE type */
5723 static MonoMethod *from_oadate;
5728 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5730 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5731 g_assert (from_oadate);
5733 mono_mb_emit_ldarg (mb, argnum);
5734 mono_mb_emit_ldloc (mb, conv_arg);
5735 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5736 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5741 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5742 klass->blittable || klass->enumtype)
5746 /* dst = argument */
5747 mono_mb_emit_ldarg (mb, argnum);
5748 mono_mb_emit_stloc (mb, 1);
5750 mono_mb_emit_ldloc (mb, 1);
5751 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5753 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5754 /* src = tmp_locals [i] */
5755 mono_mb_emit_ldloc (mb, conv_arg);
5756 mono_mb_emit_stloc (mb, 0);
5758 /* emit valuetype conversion code */
5759 emit_struct_conv (mb, klass, TRUE);
5763 emit_struct_free (mb, klass, conv_arg);
5766 mono_mb_patch_branch (mb, pos);
5769 case MARSHAL_ACTION_CONV_RESULT:
5770 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5772 mono_mb_emit_stloc (mb, 3);
5776 /* load pointer to returned value type */
5777 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5778 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5779 /* store the address of the source into local variable 0 */
5780 mono_mb_emit_stloc (mb, 0);
5782 mono_mb_emit_ldloc_addr (mb, 3);
5783 mono_mb_emit_stloc (mb, 1);
5785 /* emit valuetype conversion code */
5786 emit_struct_conv (mb, klass, TRUE);
5789 case MARSHAL_ACTION_MANAGED_CONV_IN:
5790 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5791 klass->blittable || klass->enumtype) {
5796 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5798 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5802 mono_mb_emit_ldarg (mb, argnum);
5804 mono_mb_emit_ldarg_addr (mb, argnum);
5805 mono_mb_emit_stloc (mb, 0);
5808 mono_mb_emit_ldloc (mb, 0);
5809 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5812 mono_mb_emit_ldloc_addr (mb, conv_arg);
5813 mono_mb_emit_stloc (mb, 1);
5815 /* emit valuetype conversion code */
5816 emit_struct_conv (mb, klass, TRUE);
5819 mono_mb_patch_branch (mb, pos);
5822 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5823 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5824 klass->blittable || klass->enumtype) {
5828 /* Check for null */
5829 mono_mb_emit_ldarg (mb, argnum);
5830 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5833 mono_mb_emit_ldloc_addr (mb, conv_arg);
5834 mono_mb_emit_stloc (mb, 0);
5837 mono_mb_emit_ldarg (mb, argnum);
5838 mono_mb_emit_stloc (mb, 1);
5840 /* emit valuetype conversion code */
5841 emit_struct_conv (mb, klass, FALSE);
5843 mono_mb_patch_branch (mb, pos2);
5846 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5847 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5848 klass->blittable || klass->enumtype) {
5849 mono_mb_emit_stloc (mb, 3);
5854 /* load pointer to returned value type */
5855 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5856 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5858 /* store the address of the source into local variable 0 */
5859 mono_mb_emit_stloc (mb, 0);
5860 /* allocate space for the native struct and
5861 * store the address into dst_ptr */
5862 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5863 m->retobj_class = klass;
5864 g_assert (m->retobj_var);
5865 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5866 mono_mb_emit_byte (mb, CEE_CONV_I);
5867 mono_mb_emit_icall (mb, mono_marshal_alloc);
5868 mono_mb_emit_stloc (mb, 1);
5869 mono_mb_emit_ldloc (mb, 1);
5870 mono_mb_emit_stloc (mb, m->retobj_var);
5872 /* emit valuetype conversion code */
5873 emit_struct_conv (mb, klass, FALSE);
5877 g_assert_not_reached ();
5884 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5885 MonoMarshalSpec *spec,
5886 int conv_arg, MonoType **conv_arg_type,
5887 MarshalAction action)
5889 MonoMethodBuilder *mb = m->mb;
5890 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5891 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5895 case MARSHAL_ACTION_CONV_IN:
5896 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5897 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5900 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5903 mono_mb_emit_ldarg (mb, argnum);
5904 mono_mb_emit_byte (mb, CEE_LDIND_I);
5906 mono_mb_emit_ldarg (mb, argnum);
5910 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5911 MonoException *exc = mono_get_exception_not_implemented (msg);
5912 g_warning ("%s", msg);
5914 mono_raise_exception (exc);
5917 mono_mb_emit_icall (mb, conv_to_icall (conv));
5919 mono_mb_emit_stloc (mb, conv_arg);
5922 case MARSHAL_ACTION_CONV_OUT:
5923 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5925 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5926 mono_mb_emit_exception_marshal_directive (mb, msg);
5930 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5931 mono_mb_emit_ldarg (mb, argnum);
5932 mono_mb_emit_ldloc (mb, conv_arg);
5933 mono_mb_emit_icall (mb, conv_to_icall (conv));
5934 mono_mb_emit_byte (mb, CEE_STIND_REF);
5937 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5938 mono_mb_emit_ldloc (mb, conv_arg);
5939 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5940 mono_mb_emit_icall (mb, mono_free_bstr);
5942 mono_mb_emit_icall (mb, mono_marshal_free);
5946 case MARSHAL_ACTION_PUSH:
5948 mono_mb_emit_ldloc_addr (mb, conv_arg);
5950 mono_mb_emit_ldloc (mb, conv_arg);
5953 case MARSHAL_ACTION_CONV_RESULT:
5954 mono_mb_emit_stloc (mb, 0);
5956 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5958 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5959 mono_mb_emit_exception_marshal_directive (mb, msg);
5963 mono_mb_emit_ldloc (mb, 0);
5964 mono_mb_emit_icall (mb, conv_to_icall (conv));
5965 mono_mb_emit_stloc (mb, 3);
5967 /* free the string */
5968 mono_mb_emit_ldloc (mb, 0);
5969 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5970 mono_mb_emit_icall (mb, mono_free_bstr);
5972 mono_mb_emit_icall (mb, mono_marshal_free);
5975 case MARSHAL_ACTION_MANAGED_CONV_IN:
5976 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5978 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5980 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5982 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5983 mono_mb_emit_exception_marshal_directive (mb, msg);
5987 mono_mb_emit_ldarg (mb, argnum);
5989 mono_mb_emit_byte (mb, CEE_LDIND_I);
5990 mono_mb_emit_icall (mb, conv_to_icall (conv));
5991 mono_mb_emit_stloc (mb, conv_arg);
5994 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5997 mono_mb_emit_ldarg (mb, argnum);
5998 mono_mb_emit_ldloc (mb, conv_arg);
5999 mono_mb_emit_icall (mb, conv_to_icall (conv));
6000 mono_mb_emit_byte (mb, CEE_STIND_I);
6005 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6006 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6007 /* We need to make a copy so the caller is able to free it */
6008 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6010 mono_mb_emit_icall (mb, conv_to_icall (conv));
6011 mono_mb_emit_stloc (mb, 3);
6015 g_assert_not_reached ();
6022 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6023 MonoMarshalSpec *spec, int conv_arg,
6024 MonoType **conv_arg_type, MarshalAction action)
6026 MonoMethodBuilder *mb = m->mb;
6029 case MARSHAL_ACTION_CONV_IN: {
6030 MonoType *intptr_type;
6031 int dar_release_slot, pos;
6033 intptr_type = &mono_defaults.int_class->byval_arg;
6034 conv_arg = mono_mb_add_local (mb, intptr_type);
6035 *conv_arg_type = intptr_type;
6037 if (!sh_dangerous_add_ref)
6038 init_safe_handle ();
6040 mono_mb_emit_ldarg (mb, argnum);
6041 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6042 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6044 mono_mb_patch_branch (mb, pos);
6047 * My tests in show that ref SafeHandles are not really
6048 * passed as ref objects. Instead a NULL is passed as the
6051 mono_mb_emit_icon (mb, 0);
6052 mono_mb_emit_stloc (mb, conv_arg);
6056 /* Create local to hold the ref parameter to DangerousAddRef */
6057 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6059 /* set release = false; */
6060 mono_mb_emit_icon (mb, 0);
6061 mono_mb_emit_stloc (mb, dar_release_slot);
6063 /* safehandle.DangerousAddRef (ref release) */
6064 mono_mb_emit_ldarg (mb, argnum);
6065 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6066 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6068 /* Pull the handle field from SafeHandle */
6069 mono_mb_emit_ldarg (mb, argnum);
6070 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6071 mono_mb_emit_byte (mb, CEE_LDIND_I);
6072 mono_mb_emit_stloc (mb, conv_arg);
6077 case MARSHAL_ACTION_PUSH:
6079 mono_mb_emit_ldloc_addr (mb, conv_arg);
6081 mono_mb_emit_ldloc (mb, conv_arg);
6084 case MARSHAL_ACTION_CONV_OUT: {
6085 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6086 int dar_release_slot = conv_arg + 1;
6089 if (!sh_dangerous_release)
6090 init_safe_handle ();
6096 * My tests indicate that ref SafeHandles parameters are not actually
6097 * passed by ref, but instead a new Handle is created regardless of
6098 * whether a change happens in the unmanaged side.
6100 * Also, the Handle is created before calling into unmanaged code,
6101 * but we do not support that mechanism (getting to the original
6102 * handle) and it makes no difference where we create this
6104 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6106 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6109 /* refval = new SafeHandleDerived ()*/
6110 mono_mb_emit_ldarg (mb, argnum);
6111 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6112 mono_mb_emit_byte (mb, CEE_STIND_REF);
6114 /* refval.handle = returned_handle */
6115 mono_mb_emit_ldarg (mb, argnum);
6116 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6117 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6118 mono_mb_emit_ldloc (mb, conv_arg);
6119 mono_mb_emit_byte (mb, CEE_STIND_I);
6121 mono_mb_emit_ldloc (mb, dar_release_slot);
6122 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6123 mono_mb_emit_ldarg (mb, argnum);
6124 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6125 mono_mb_patch_branch (mb, label_next);
6130 case MARSHAL_ACTION_CONV_RESULT: {
6131 MonoMethod *ctor = NULL;
6132 int intptr_handle_slot;
6134 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6135 mono_mb_emit_byte (mb, CEE_POP);
6136 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6140 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6142 mono_mb_emit_byte (mb, CEE_POP);
6143 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6146 /* Store the IntPtr results into a local */
6147 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6148 mono_mb_emit_stloc (mb, intptr_handle_slot);
6150 /* Create return value */
6151 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6152 mono_mb_emit_stloc (mb, 3);
6154 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6155 mono_mb_emit_ldloc (mb, 3);
6156 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6157 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6158 mono_mb_emit_byte (mb, CEE_STIND_I);
6162 case MARSHAL_ACTION_MANAGED_CONV_IN:
6163 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6166 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6167 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6170 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6171 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6174 printf ("Unhandled case for MarshalAction: %d\n", action);
6181 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6182 MonoMarshalSpec *spec, int conv_arg,
6183 MonoType **conv_arg_type, MarshalAction action)
6185 MonoMethodBuilder *mb = m->mb;
6188 case MARSHAL_ACTION_CONV_IN: {
6189 MonoType *intptr_type;
6191 intptr_type = &mono_defaults.int_class->byval_arg;
6192 conv_arg = mono_mb_add_local (mb, intptr_type);
6193 *conv_arg_type = intptr_type;
6196 mono_mb_emit_exception_marshal_directive (mb,
6197 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6200 mono_mb_emit_ldarg_addr (mb, argnum);
6201 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6202 mono_mb_emit_byte (mb, CEE_ADD);
6203 mono_mb_emit_byte (mb, CEE_LDIND_I);
6204 mono_mb_emit_stloc (mb, conv_arg);
6208 case MARSHAL_ACTION_PUSH:
6209 mono_mb_emit_ldloc (mb, conv_arg);
6212 case MARSHAL_ACTION_CONV_OUT: {
6213 /* no resource release required */
6217 case MARSHAL_ACTION_CONV_RESULT: {
6218 mono_mb_emit_exception_marshal_directive (mb,
6219 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6223 case MARSHAL_ACTION_MANAGED_CONV_IN:
6224 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6227 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6228 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6231 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6232 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6235 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6242 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6243 MonoMarshalSpec *spec,
6244 int conv_arg, MonoType **conv_arg_type,
6245 MarshalAction action)
6247 MonoMethodBuilder *mb = m->mb;
6248 MonoClass *klass = mono_class_from_mono_type (t);
6252 case MARSHAL_ACTION_CONV_IN:
6253 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6254 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6256 m->orig_conv_args [argnum] = 0;
6258 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6259 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6260 mono_mb_emit_exception_marshal_directive (mb, msg);
6264 if (klass->delegate) {
6266 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6267 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6268 mono_mb_emit_exception_marshal_directive (mb, msg);
6270 mono_mb_emit_byte (mb, CEE_LDNULL);
6271 mono_mb_emit_stloc (mb, conv_arg);
6273 mono_mb_emit_ldarg (mb, argnum);
6274 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6275 mono_mb_emit_stloc (mb, conv_arg);
6277 } else if (klass == mono_defaults.stringbuilder_class) {
6278 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6279 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6282 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6283 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6284 mono_mb_emit_exception_marshal_directive (mb, msg);
6289 mono_mb_emit_ldarg (mb, argnum);
6292 mono_mb_emit_icall (mb, conv_to_icall (conv));
6294 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6295 MonoException *exc = mono_get_exception_not_implemented (msg);
6296 g_warning ("%s", msg);
6298 mono_raise_exception (exc);
6301 mono_mb_emit_stloc (mb, conv_arg);
6302 } else if (klass->blittable) {
6303 mono_mb_emit_byte (mb, CEE_LDNULL);
6304 mono_mb_emit_stloc (mb, conv_arg);
6306 mono_mb_emit_ldarg (mb, argnum);
6307 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6309 mono_mb_emit_ldarg (mb, argnum);
6310 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6311 mono_mb_emit_stloc (mb, conv_arg);
6313 mono_mb_patch_branch (mb, pos);
6316 mono_mb_emit_byte (mb, CEE_LDNULL);
6317 mono_mb_emit_stloc (mb, conv_arg);
6320 /* we dont need any conversions for out parameters */
6321 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6324 mono_mb_emit_ldarg (mb, argnum);
6325 mono_mb_emit_byte (mb, CEE_LDIND_I);
6328 mono_mb_emit_ldarg (mb, argnum);
6329 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6330 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6333 /* store the address of the source into local variable 0 */
6334 mono_mb_emit_stloc (mb, 0);
6335 mono_mb_emit_ldloc (mb, 0);
6336 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6338 /* allocate space for the native struct and store the address */
6339 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6340 mono_mb_emit_byte (mb, CEE_PREFIX1);
6341 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6342 mono_mb_emit_stloc (mb, conv_arg);
6345 /* Need to store the original buffer so we can free it later */
6346 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6347 mono_mb_emit_ldloc (mb, conv_arg);
6348 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6351 /* set the src_ptr */
6352 mono_mb_emit_ldloc (mb, 0);
6353 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6354 mono_mb_emit_stloc (mb, 0);
6357 mono_mb_emit_ldloc (mb, conv_arg);
6358 mono_mb_emit_stloc (mb, 1);
6360 /* emit valuetype conversion code */
6361 emit_struct_conv (mb, klass, FALSE);
6363 mono_mb_patch_branch (mb, pos);
6367 case MARSHAL_ACTION_CONV_OUT:
6368 if (klass == mono_defaults.stringbuilder_class) {
6370 MonoMarshalNative encoding;
6371 MonoMarshalConv conv;
6373 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6374 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6376 g_assert (encoding != -1);
6379 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6383 mono_mb_emit_ldarg (mb, argnum);
6384 mono_mb_emit_ldloc (mb, conv_arg);
6387 case MONO_NATIVE_LPWSTR:
6388 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6390 case MONO_NATIVE_LPSTR:
6391 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6394 g_assert_not_reached ();
6397 mono_mb_emit_byte (mb, CEE_STIND_REF);
6399 mono_mb_emit_ldarg (mb, argnum);
6400 mono_mb_emit_ldloc (mb, conv_arg);
6402 mono_mb_emit_icall (mb, conv_to_icall (conv));
6406 mono_mb_emit_ldloc (mb, conv_arg);
6407 mono_mb_emit_icall (mb, mono_marshal_free);
6412 if (klass->delegate) {
6414 mono_mb_emit_ldarg (mb, argnum);
6415 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6416 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6417 mono_mb_emit_ldloc (mb, conv_arg);
6418 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6419 mono_mb_emit_byte (mb, CEE_STIND_REF);
6424 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6425 /* allocate a new object */
6426 mono_mb_emit_ldarg (mb, argnum);
6427 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6428 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6429 mono_mb_emit_byte (mb, CEE_STIND_REF);
6432 /* dst = *argument */
6433 mono_mb_emit_ldarg (mb, argnum);
6436 mono_mb_emit_byte (mb, CEE_LDIND_I);
6438 mono_mb_emit_stloc (mb, 1);
6440 mono_mb_emit_ldloc (mb, 1);
6441 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6443 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6444 mono_mb_emit_ldloc (mb, 1);
6445 mono_mb_emit_icon (mb, sizeof (MonoObject));
6446 mono_mb_emit_byte (mb, CEE_ADD);
6447 mono_mb_emit_stloc (mb, 1);
6449 /* src = tmp_locals [i] */
6450 mono_mb_emit_ldloc (mb, conv_arg);
6451 mono_mb_emit_stloc (mb, 0);
6453 /* emit valuetype conversion code */
6454 emit_struct_conv (mb, klass, TRUE);
6456 /* Free the structure returned by the native code */
6457 emit_struct_free (mb, klass, conv_arg);
6459 if (m->orig_conv_args [argnum]) {
6461 * If the native function changed the pointer, then free
6462 * the original structure plus the new pointer.
6464 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6465 mono_mb_emit_ldloc (mb, conv_arg);
6466 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6468 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6469 g_assert (m->orig_conv_args [argnum]);
6471 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6474 mono_mb_emit_ldloc (mb, conv_arg);
6475 mono_mb_emit_icall (mb, g_free);
6477 mono_mb_patch_branch (mb, pos2);
6481 /* Free the original structure passed to native code */
6482 emit_struct_free (mb, klass, conv_arg);
6484 mono_mb_patch_branch (mb, pos);
6487 case MARSHAL_ACTION_PUSH:
6489 mono_mb_emit_ldloc_addr (mb, conv_arg);
6491 mono_mb_emit_ldloc (mb, conv_arg);
6494 case MARSHAL_ACTION_CONV_RESULT:
6495 if (klass->delegate) {
6496 g_assert (!t->byref);
6497 mono_mb_emit_stloc (mb, 0);
6498 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6499 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6500 mono_mb_emit_ldloc (mb, 0);
6501 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6502 mono_mb_emit_stloc (mb, 3);
6505 mono_mb_emit_stloc (mb, 0);
6507 /* Make a copy since emit_conv modifies local 0 */
6508 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6509 mono_mb_emit_ldloc (mb, 0);
6510 mono_mb_emit_stloc (mb, loc);
6512 mono_mb_emit_byte (mb, CEE_LDNULL);
6513 mono_mb_emit_stloc (mb, 3);
6515 mono_mb_emit_ldloc (mb, 0);
6516 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6518 /* allocate result object */
6520 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6521 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6522 mono_mb_emit_stloc (mb, 3);
6526 mono_mb_emit_ldloc (mb, 3);
6527 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6528 mono_mb_emit_stloc (mb, 1);
6530 /* emit conversion code */
6531 emit_struct_conv (mb, klass, TRUE);
6533 emit_struct_free (mb, klass, loc);
6535 /* Free the pointer allocated by unmanaged code */
6536 mono_mb_emit_ldloc (mb, loc);
6537 mono_mb_emit_icall (mb, g_free);
6538 mono_mb_patch_branch (mb, pos);
6542 case MARSHAL_ACTION_MANAGED_CONV_IN:
6543 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6545 if (klass->delegate) {
6546 g_assert (!t->byref);
6547 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6548 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6549 mono_mb_emit_ldarg (mb, argnum);
6550 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6551 mono_mb_emit_stloc (mb, conv_arg);
6555 if (klass == mono_defaults.stringbuilder_class) {
6556 MonoMarshalNative encoding;
6558 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6561 g_assert (encoding == MONO_NATIVE_LPSTR);
6563 g_assert (!t->byref);
6564 g_assert (encoding != -1);
6566 mono_mb_emit_ldarg (mb, argnum);
6567 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6568 mono_mb_emit_stloc (mb, conv_arg);
6572 /* The class can not have an automatic layout */
6573 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6574 mono_mb_emit_auto_layout_exception (mb, klass);
6578 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6579 mono_mb_emit_byte (mb, CEE_LDNULL);
6580 mono_mb_emit_stloc (mb, conv_arg);
6585 mono_mb_emit_ldarg (mb, argnum);
6589 /* Check for NULL and raise an exception */
6590 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6592 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6594 mono_mb_patch_branch (mb, pos2);
6595 mono_mb_emit_ldarg (mb, argnum);
6596 mono_mb_emit_byte (mb, CEE_LDIND_I);
6599 mono_mb_emit_stloc (mb, 0);
6601 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6602 mono_mb_emit_stloc (mb, conv_arg);
6604 mono_mb_emit_ldloc (mb, 0);
6605 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6607 /* Create and set dst */
6608 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6609 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6610 mono_mb_emit_stloc (mb, conv_arg);
6611 mono_mb_emit_ldloc (mb, conv_arg);
6612 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6613 mono_mb_emit_stloc (mb, 1);
6615 /* emit valuetype conversion code */
6616 emit_struct_conv (mb, klass, TRUE);
6618 mono_mb_patch_branch (mb, pos);
6621 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6623 /* Check for null */
6624 mono_mb_emit_ldloc (mb, conv_arg);
6625 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6626 mono_mb_emit_ldarg (mb, argnum);
6627 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6628 mono_mb_emit_byte (mb, CEE_STIND_REF);
6629 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6631 mono_mb_patch_branch (mb, pos);
6634 mono_mb_emit_ldloc (mb, conv_arg);
6635 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6636 mono_mb_emit_stloc (mb, 0);
6638 /* Allocate and set dest */
6639 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6640 mono_mb_emit_byte (mb, CEE_CONV_I);
6641 mono_mb_emit_icall (mb, mono_marshal_alloc);
6642 mono_mb_emit_stloc (mb, 1);
6644 /* Update argument pointer */
6645 mono_mb_emit_ldarg (mb, argnum);
6646 mono_mb_emit_ldloc (mb, 1);
6647 mono_mb_emit_byte (mb, CEE_STIND_I);
6649 /* emit valuetype conversion code */
6650 emit_struct_conv (mb, klass, FALSE);
6652 mono_mb_patch_branch (mb, pos2);
6654 /* byval [Out] marshalling */
6656 /* FIXME: Handle null */
6659 mono_mb_emit_ldloc (mb, conv_arg);
6660 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6661 mono_mb_emit_stloc (mb, 0);
6664 mono_mb_emit_ldarg (mb, argnum);
6665 mono_mb_emit_stloc (mb, 1);
6667 /* emit valuetype conversion code */
6668 emit_struct_conv (mb, klass, FALSE);
6672 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6673 if (klass->delegate) {
6674 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6675 mono_mb_emit_stloc (mb, 3);
6679 /* The class can not have an automatic layout */
6680 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6681 mono_mb_emit_auto_layout_exception (mb, klass);
6685 mono_mb_emit_stloc (mb, 0);
6686 /* Check for null */
6687 mono_mb_emit_ldloc (mb, 0);
6688 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6689 mono_mb_emit_byte (mb, CEE_LDNULL);
6690 mono_mb_emit_stloc (mb, 3);
6691 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6693 mono_mb_patch_branch (mb, pos);
6696 mono_mb_emit_ldloc (mb, 0);
6697 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6698 mono_mb_emit_stloc (mb, 0);
6700 /* Allocate and set dest */
6701 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6702 mono_mb_emit_byte (mb, CEE_CONV_I);
6703 mono_mb_emit_icall (mb, mono_marshal_alloc);
6704 mono_mb_emit_byte (mb, CEE_DUP);
6705 mono_mb_emit_stloc (mb, 1);
6706 mono_mb_emit_stloc (mb, 3);
6708 emit_struct_conv (mb, klass, FALSE);
6710 mono_mb_patch_branch (mb, pos2);
6714 g_assert_not_reached ();
6721 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6722 MonoMarshalSpec *spec,
6723 int conv_arg, MonoType **conv_arg_type,
6724 MarshalAction action)
6726 MonoMethodBuilder *mb = m->mb;
6727 static MonoMethod *get_object_for_native_variant = NULL;
6728 static MonoMethod *get_native_variant_for_object = NULL;
6730 mono_init_com_types ();
6732 if (!get_object_for_native_variant)
6733 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6734 g_assert (get_object_for_native_variant);
6736 if (!get_native_variant_for_object)
6737 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6738 g_assert (get_native_variant_for_object);
6741 case MARSHAL_ACTION_CONV_IN: {
6742 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6745 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6747 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6749 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6752 mono_mb_emit_ldarg (mb, argnum);
6754 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6755 mono_mb_emit_ldloc_addr (mb, conv_arg);
6756 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6760 case MARSHAL_ACTION_CONV_OUT: {
6761 static MonoMethod *variant_clear = NULL;
6764 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6765 g_assert (variant_clear);
6768 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6769 mono_mb_emit_ldarg (mb, argnum);
6770 mono_mb_emit_ldloc_addr (mb, conv_arg);
6771 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6772 mono_mb_emit_byte (mb, CEE_STIND_REF);
6775 mono_mb_emit_ldloc_addr (mb, conv_arg);
6776 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6780 case MARSHAL_ACTION_PUSH:
6782 mono_mb_emit_ldloc_addr (mb, conv_arg);
6784 mono_mb_emit_ldloc (mb, conv_arg);
6787 case MARSHAL_ACTION_CONV_RESULT: {
6788 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6789 mono_mb_emit_exception_marshal_directive (mb, msg);
6793 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6794 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6797 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6799 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6801 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6805 mono_mb_emit_ldarg (mb, argnum);
6807 mono_mb_emit_ldarg_addr (mb, argnum);
6808 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6809 mono_mb_emit_stloc (mb, conv_arg);
6813 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6814 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6815 mono_mb_emit_ldloc (mb, conv_arg);
6816 mono_mb_emit_ldarg (mb, argnum);
6817 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6822 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6823 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6824 mono_mb_emit_exception_marshal_directive (mb, msg);
6829 g_assert_not_reached ();
6836 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6837 MonoMarshalSpec *spec,
6838 int conv_arg, MonoType **conv_arg_type,
6839 MarshalAction action)
6841 MonoMethodBuilder *mb = m->mb;
6842 MonoClass *klass = mono_class_from_mono_type (t);
6843 gboolean need_convert, need_free;
6844 MonoMarshalNative encoding;
6846 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6849 case MARSHAL_ACTION_CONV_IN:
6850 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6851 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6853 if (klass->element_class->blittable) {
6854 mono_mb_emit_ldarg (mb, argnum);
6856 mono_mb_emit_byte (mb, CEE_LDIND_I);
6857 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6858 mono_mb_emit_stloc (mb, conv_arg);
6861 guint32 label1, label2, label3;
6862 int index_var, src_var, dest_ptr, esize;
6863 MonoMarshalConv conv;
6864 gboolean is_string = FALSE;
6866 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6868 eklass = klass->element_class;
6870 if (eklass == mono_defaults.string_class) {
6872 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6874 else if (eklass == mono_defaults.stringbuilder_class) {
6876 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6881 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6882 mono_mb_emit_ldarg (mb, argnum);
6884 mono_mb_emit_byte (mb, CEE_LDIND_I);
6885 mono_mb_emit_stloc (mb, src_var);
6888 mono_mb_emit_ldloc (mb, src_var);
6889 mono_mb_emit_stloc (mb, conv_arg);
6890 mono_mb_emit_ldloc (mb, src_var);
6891 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6895 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6896 MonoException *exc = mono_get_exception_not_implemented (msg);
6897 g_warning ("%s", msg);
6899 mono_raise_exception (exc);
6904 esize = sizeof (gpointer);
6906 esize = mono_class_native_size (eklass, NULL);
6908 /* allocate space for the native struct and store the address */
6909 mono_mb_emit_icon (mb, esize);
6910 mono_mb_emit_ldloc (mb, src_var);
6911 mono_mb_emit_byte (mb, CEE_LDLEN);
6913 if (eklass == mono_defaults.string_class) {
6914 /* Make the array bigger for the terminating null */
6915 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6916 mono_mb_emit_byte (mb, CEE_ADD);
6918 mono_mb_emit_byte (mb, CEE_MUL);
6919 mono_mb_emit_byte (mb, CEE_PREFIX1);
6920 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6921 mono_mb_emit_stloc (mb, conv_arg);
6923 mono_mb_emit_ldloc (mb, conv_arg);
6924 mono_mb_emit_stloc (mb, dest_ptr);
6926 /* Emit marshalling loop */
6927 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6928 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6929 mono_mb_emit_stloc (mb, index_var);
6930 label2 = mono_mb_get_label (mb);
6931 mono_mb_emit_ldloc (mb, index_var);
6932 mono_mb_emit_ldloc (mb, src_var);
6933 mono_mb_emit_byte (mb, CEE_LDLEN);
6934 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6936 /* Emit marshalling code */
6939 mono_mb_emit_ldloc (mb, dest_ptr);
6940 mono_mb_emit_ldloc (mb, src_var);
6941 mono_mb_emit_ldloc (mb, index_var);
6942 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6943 mono_mb_emit_icall (mb, conv_to_icall (conv));
6944 mono_mb_emit_byte (mb, CEE_STIND_I);
6946 /* set the src_ptr */
6947 mono_mb_emit_ldloc (mb, src_var);
6948 mono_mb_emit_ldloc (mb, index_var);
6949 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6950 mono_mb_emit_stloc (mb, 0);
6953 mono_mb_emit_ldloc (mb, dest_ptr);
6954 mono_mb_emit_stloc (mb, 1);
6956 /* emit valuetype conversion code */
6957 emit_struct_conv (mb, eklass, FALSE);
6960 mono_mb_emit_add_to_local (mb, index_var, 1);
6961 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6963 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6965 mono_mb_patch_branch (mb, label3);
6967 if (eklass == mono_defaults.string_class) {
6968 /* Null terminate */
6969 mono_mb_emit_ldloc (mb, dest_ptr);
6970 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6971 mono_mb_emit_byte (mb, CEE_STIND_REF);
6974 mono_mb_patch_branch (mb, label1);
6979 case MARSHAL_ACTION_CONV_OUT:
6980 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6981 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);
6982 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6985 if (need_convert || need_free) {
6986 /* FIXME: Optimize blittable case */
6988 guint32 label1, label2, label3;
6989 int index_var, src_ptr, loc, esize;
6991 eklass = klass->element_class;
6992 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6993 esize = sizeof (gpointer);
6995 esize = mono_class_native_size (eklass, NULL);
6996 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6997 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7000 mono_mb_emit_ldarg (mb, argnum);
7002 mono_mb_emit_byte (mb, CEE_LDIND_I);
7003 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7005 mono_mb_emit_ldloc (mb, conv_arg);
7006 mono_mb_emit_stloc (mb, src_ptr);
7008 /* Emit marshalling loop */
7009 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7010 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7011 mono_mb_emit_stloc (mb, index_var);
7012 label2 = mono_mb_get_label (mb);
7013 mono_mb_emit_ldloc (mb, index_var);
7014 mono_mb_emit_ldarg (mb, argnum);
7016 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7017 mono_mb_emit_byte (mb, CEE_LDLEN);
7018 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7020 /* Emit marshalling code */
7022 if (eklass == mono_defaults.stringbuilder_class) {
7023 gboolean need_free2;
7024 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7026 g_assert (conv != -1);
7029 mono_mb_emit_ldarg (mb, argnum);
7031 mono_mb_emit_byte (mb, CEE_LDIND_I);
7032 mono_mb_emit_ldloc (mb, index_var);
7033 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7036 mono_mb_emit_ldloc (mb, src_ptr);
7037 mono_mb_emit_byte (mb, CEE_LDIND_I);
7039 mono_mb_emit_icall (mb, conv_to_icall (conv));
7043 mono_mb_emit_ldloc (mb, src_ptr);
7044 mono_mb_emit_byte (mb, CEE_LDIND_I);
7046 mono_mb_emit_icall (mb, mono_marshal_free);
7049 else if (eklass == mono_defaults.string_class) {
7052 mono_mb_emit_ldloc (mb, src_ptr);
7053 mono_mb_emit_byte (mb, CEE_LDIND_I);
7055 mono_mb_emit_icall (mb, mono_marshal_free);
7060 /* set the src_ptr */
7061 mono_mb_emit_ldloc (mb, src_ptr);
7062 mono_mb_emit_stloc (mb, 0);
7065 mono_mb_emit_ldarg (mb, argnum);
7067 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7068 mono_mb_emit_ldloc (mb, index_var);
7069 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7070 mono_mb_emit_stloc (mb, 1);
7072 /* emit valuetype conversion code */
7073 emit_struct_conv (mb, eklass, TRUE);
7077 mono_mb_emit_ldloc (mb, src_ptr);
7078 mono_mb_emit_stloc (mb, loc);
7079 mono_mb_emit_ldloc (mb, loc);
7081 emit_struct_free (mb, eklass, loc);
7085 mono_mb_emit_add_to_local (mb, index_var, 1);
7086 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7088 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7090 mono_mb_patch_branch (mb, label1);
7091 mono_mb_patch_branch (mb, label3);
7094 if (klass->element_class->blittable) {
7095 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7097 mono_mb_emit_ldarg (mb, argnum);
7098 mono_mb_emit_ldloc (mb, conv_arg);
7099 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7104 case MARSHAL_ACTION_PUSH:
7106 mono_mb_emit_ldloc_addr (mb, conv_arg);
7108 mono_mb_emit_ldloc (mb, conv_arg);
7111 case MARSHAL_ACTION_CONV_RESULT:
7112 /* fixme: we need conversions here */
7113 mono_mb_emit_stloc (mb, 3);
7116 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7118 guint32 label1, label2, label3;
7119 int index_var, src_ptr, loc, esize, param_num, num_elem;
7120 MonoMarshalConv conv;
7121 gboolean is_string = FALSE;
7123 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7124 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7127 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7128 mono_mb_emit_exception_marshal_directive (mb, msg);
7132 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7133 mono_mb_emit_exception_marshal_directive (mb, msg);
7136 if (spec->native != MONO_NATIVE_LPARRAY) {
7137 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7138 mono_mb_emit_exception_marshal_directive (mb, msg);
7142 /* FIXME: t is from the method which is wrapped, not the delegate type */
7143 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7145 param_num = spec->data.array_data.param_num;
7146 num_elem = spec->data.array_data.num_elem;
7147 if (spec->data.array_data.elem_mult == 0)
7148 /* param_num is not specified */
7151 if (param_num == -1) {
7152 if (num_elem <= 0) {
7153 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7154 mono_mb_emit_exception_marshal_directive (mb, msg);
7159 /* FIXME: Optimize blittable case */
7161 eklass = klass->element_class;
7162 if (eklass == mono_defaults.string_class) {
7164 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7166 else if (eklass == mono_defaults.stringbuilder_class) {
7168 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7173 mono_marshal_load_type_info (eklass);
7176 esize = sizeof (gpointer);
7178 esize = mono_class_native_size (eklass, NULL);
7179 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7180 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7182 mono_mb_emit_byte (mb, CEE_LDNULL);
7183 mono_mb_emit_stloc (mb, conv_arg);
7185 /* Check param index */
7186 if (param_num != -1) {
7187 if (param_num >= m->sig->param_count) {
7188 char *msg = g_strdup ("Array size control parameter index is out of range.");
7189 mono_mb_emit_exception_marshal_directive (mb, msg);
7192 switch (m->sig->params [param_num]->type) {
7205 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7206 mono_mb_emit_exception_marshal_directive (mb, msg);
7213 mono_mb_emit_ldarg (mb, argnum);
7214 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7216 mono_mb_emit_ldarg (mb, argnum);
7217 mono_mb_emit_stloc (mb, src_ptr);
7219 /* Create managed array */
7221 * The LPArray marshalling spec says that sometimes param_num starts
7222 * from 1, sometimes it starts from 0. But MS seems to allways start
7226 if (param_num == -1) {
7227 mono_mb_emit_icon (mb, num_elem);
7229 mono_mb_emit_ldarg (mb, param_num);
7231 mono_mb_emit_icon (mb, num_elem);
7232 mono_mb_emit_byte (mb, CEE_ADD);
7234 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7237 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7238 mono_mb_emit_stloc (mb, conv_arg);
7240 if (eklass->blittable) {
7241 mono_mb_emit_ldloc (mb, conv_arg);
7242 mono_mb_emit_byte (mb, CEE_CONV_I);
7243 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7244 mono_mb_emit_byte (mb, CEE_ADD);
7245 mono_mb_emit_ldarg (mb, argnum);
7246 mono_mb_emit_ldloc (mb, conv_arg);
7247 mono_mb_emit_byte (mb, CEE_LDLEN);
7248 mono_mb_emit_icon (mb, esize);
7249 mono_mb_emit_byte (mb, CEE_MUL);
7250 mono_mb_emit_byte (mb, CEE_PREFIX1);
7251 mono_mb_emit_byte (mb, CEE_CPBLK);
7255 /* Emit marshalling loop */
7256 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7257 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7258 mono_mb_emit_stloc (mb, index_var);
7259 label2 = mono_mb_get_label (mb);
7260 mono_mb_emit_ldloc (mb, index_var);
7261 mono_mb_emit_ldloc (mb, conv_arg);
7262 mono_mb_emit_byte (mb, CEE_LDLEN);
7263 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7265 /* Emit marshalling code */
7267 g_assert (conv != -1);
7269 mono_mb_emit_ldloc (mb, conv_arg);
7270 mono_mb_emit_ldloc (mb, index_var);
7272 mono_mb_emit_ldloc (mb, src_ptr);
7273 mono_mb_emit_byte (mb, CEE_LDIND_I);
7275 mono_mb_emit_icall (mb, conv_to_icall (conv));
7276 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7279 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7280 mono_mb_emit_exception_marshal_directive (mb, msg);
7284 mono_mb_emit_add_to_local (mb, index_var, 1);
7285 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7287 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7289 mono_mb_patch_branch (mb, label1);
7290 mono_mb_patch_branch (mb, label3);
7294 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7296 guint32 label1, label2, label3;
7297 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7298 MonoMarshalConv conv;
7299 gboolean is_string = FALSE;
7302 /* Already handled in CONV_IN */
7305 /* These are already checked in CONV_IN */
7306 g_assert (!t->byref);
7307 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7308 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7310 param_num = spec->data.array_data.param_num;
7311 num_elem = spec->data.array_data.num_elem;
7313 if (spec->data.array_data.elem_mult == 0)
7314 /* param_num is not specified */
7317 if (param_num == -1) {
7318 if (num_elem <= 0) {
7319 g_assert_not_reached ();
7323 /* FIXME: Optimize blittable case */
7325 eklass = klass->element_class;
7326 if (eklass == mono_defaults.string_class) {
7328 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7330 else if (eklass == mono_defaults.stringbuilder_class) {
7332 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7337 mono_marshal_load_type_info (eklass);
7340 esize = sizeof (gpointer);
7342 esize = mono_class_native_size (eklass, NULL);
7344 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7345 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7348 mono_mb_emit_ldloc (mb, conv_arg);
7349 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7351 mono_mb_emit_ldarg (mb, argnum);
7352 mono_mb_emit_stloc (mb, dest_ptr);
7354 if (eklass->blittable) {
7356 mono_mb_emit_ldarg (mb, argnum);
7358 mono_mb_emit_ldloc (mb, conv_arg);
7359 mono_mb_emit_byte (mb, CEE_CONV_I);
7360 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7361 mono_mb_emit_byte (mb, CEE_ADD);
7363 mono_mb_emit_ldloc (mb, conv_arg);
7364 mono_mb_emit_byte (mb, CEE_LDLEN);
7365 mono_mb_emit_icon (mb, esize);
7366 mono_mb_emit_byte (mb, CEE_MUL);
7367 mono_mb_emit_byte (mb, CEE_PREFIX1);
7368 mono_mb_emit_byte (mb, CEE_CPBLK);
7372 /* Emit marshalling loop */
7373 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7374 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7375 mono_mb_emit_stloc (mb, index_var);
7376 label2 = mono_mb_get_label (mb);
7377 mono_mb_emit_ldloc (mb, index_var);
7378 mono_mb_emit_ldloc (mb, conv_arg);
7379 mono_mb_emit_byte (mb, CEE_LDLEN);
7380 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7382 /* Emit marshalling code */
7384 g_assert (conv != -1);
7387 mono_mb_emit_ldloc (mb, dest_ptr);
7390 mono_mb_emit_ldloc (mb, conv_arg);
7391 mono_mb_emit_ldloc (mb, index_var);
7393 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7395 mono_mb_emit_icall (mb, conv_to_icall (conv));
7396 mono_mb_emit_byte (mb, CEE_STIND_I);
7399 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7400 mono_mb_emit_exception_marshal_directive (mb, msg);
7404 mono_mb_emit_add_to_local (mb, index_var, 1);
7405 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7407 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7409 mono_mb_patch_branch (mb, label1);
7410 mono_mb_patch_branch (mb, label3);
7414 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7416 guint32 label1, label2, label3;
7417 int index_var, src, dest, esize;
7418 MonoMarshalConv conv = -1;
7419 gboolean is_string = FALSE;
7421 g_assert (!t->byref);
7423 eklass = klass->element_class;
7425 mono_marshal_load_type_info (eklass);
7427 if (eklass == mono_defaults.string_class) {
7429 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7432 g_assert_not_reached ();
7436 esize = sizeof (gpointer);
7438 esize = mono_class_native_size (eklass, NULL);
7440 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7441 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7443 mono_mb_emit_stloc (mb, src);
7444 mono_mb_emit_ldloc (mb, src);
7445 mono_mb_emit_stloc (mb, 3);
7447 /* Check for null */
7448 mono_mb_emit_ldloc (mb, src);
7449 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7451 /* Allocate native array */
7452 mono_mb_emit_icon (mb, esize);
7453 mono_mb_emit_ldloc (mb, src);
7454 mono_mb_emit_byte (mb, CEE_LDLEN);
7456 if (eklass == mono_defaults.string_class) {
7457 /* Make the array bigger for the terminating null */
7458 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7459 mono_mb_emit_byte (mb, CEE_ADD);
7461 mono_mb_emit_byte (mb, CEE_MUL);
7462 mono_mb_emit_icall (mb, mono_marshal_alloc);
7463 mono_mb_emit_stloc (mb, dest);
7464 mono_mb_emit_ldloc (mb, dest);
7465 mono_mb_emit_stloc (mb, 3);
7467 /* Emit marshalling loop */
7468 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7469 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7470 mono_mb_emit_stloc (mb, index_var);
7471 label2 = mono_mb_get_label (mb);
7472 mono_mb_emit_ldloc (mb, index_var);
7473 mono_mb_emit_ldloc (mb, src);
7474 mono_mb_emit_byte (mb, CEE_LDLEN);
7475 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7477 /* Emit marshalling code */
7479 g_assert (conv != -1);
7482 mono_mb_emit_ldloc (mb, dest);
7485 mono_mb_emit_ldloc (mb, src);
7486 mono_mb_emit_ldloc (mb, index_var);
7488 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7490 mono_mb_emit_icall (mb, conv_to_icall (conv));
7491 mono_mb_emit_byte (mb, CEE_STIND_I);
7494 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7495 mono_mb_emit_exception_marshal_directive (mb, msg);
7499 mono_mb_emit_add_to_local (mb, index_var, 1);
7500 mono_mb_emit_add_to_local (mb, dest, esize);
7502 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7504 mono_mb_patch_branch (mb, label3);
7505 mono_mb_patch_branch (mb, label1);
7509 g_assert_not_reached ();
7516 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7517 MonoMarshalSpec *spec,
7518 int conv_arg, MonoType **conv_arg_type,
7519 MarshalAction action)
7521 MonoMethodBuilder *mb = m->mb;
7524 case MARSHAL_ACTION_CONV_IN: {
7525 MonoType *local_type;
7527 guint8 ldc_op = CEE_LDC_I4_1;
7530 local_type = &mono_defaults.int32_class->byval_arg;
7532 switch (spec->native) {
7533 case MONO_NATIVE_I1:
7534 case MONO_NATIVE_U1:
7535 local_type = &mono_defaults.byte_class->byval_arg;
7537 case MONO_NATIVE_VARIANTBOOL:
7538 local_type = &mono_defaults.int16_class->byval_arg;
7539 ldc_op = CEE_LDC_I4_M1;
7541 case MONO_NATIVE_BOOLEAN:
7542 local_type = &mono_defaults.int32_class->byval_arg;
7545 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7546 local_type = &mono_defaults.int32_class->byval_arg;
7551 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7553 *conv_arg_type = local_type;
7554 conv_arg = mono_mb_add_local (mb, local_type);
7556 mono_mb_emit_ldarg (mb, argnum);
7558 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7559 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7560 mono_mb_emit_byte (mb, ldc_op);
7561 mono_mb_emit_stloc (mb, conv_arg);
7562 mono_mb_patch_branch (mb, label_false);
7567 case MARSHAL_ACTION_CONV_OUT:
7569 int label_false, label_end;
7573 mono_mb_emit_ldarg (mb, argnum);
7574 mono_mb_emit_ldloc (mb, conv_arg);
7576 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7577 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7579 label_end = mono_mb_emit_branch (mb, CEE_BR);
7580 mono_mb_patch_branch (mb, label_false);
7581 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7582 mono_mb_patch_branch (mb, label_end);
7584 mono_mb_emit_byte (mb, CEE_STIND_I1);
7588 case MARSHAL_ACTION_PUSH:
7590 mono_mb_emit_ldloc_addr (mb, conv_arg);
7592 mono_mb_emit_ldloc (mb, conv_arg);
7594 mono_mb_emit_ldarg (mb, argnum);
7597 case MARSHAL_ACTION_CONV_RESULT:
7598 /* maybe we need to make sure that it fits within 8 bits */
7599 mono_mb_emit_stloc (mb, 3);
7602 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7603 MonoClass* conv_arg_class = mono_defaults.int32_class;
7604 guint8 ldop = CEE_LDIND_I4;
7605 int label_null, label_false;
7607 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7610 switch (spec->native) {
7611 case MONO_NATIVE_I1:
7612 case MONO_NATIVE_U1:
7613 conv_arg_class = mono_defaults.byte_class;
7614 ldop = CEE_LDIND_I1;
7616 case MONO_NATIVE_VARIANTBOOL:
7617 conv_arg_class = mono_defaults.int16_class;
7618 ldop = CEE_LDIND_I2;
7620 case MONO_NATIVE_BOOLEAN:
7623 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7628 *conv_arg_type = &conv_arg_class->this_arg;
7630 *conv_arg_type = &conv_arg_class->byval_arg;
7633 mono_mb_emit_ldarg (mb, argnum);
7638 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7639 mono_mb_emit_ldarg (mb, argnum);
7640 mono_mb_emit_byte (mb, ldop);
7643 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7644 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7645 mono_mb_emit_stloc (mb, conv_arg);
7646 mono_mb_patch_branch (mb, label_false);
7649 mono_mb_patch_branch (mb, label_null);
7653 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7654 guint8 stop = CEE_STIND_I4;
7655 guint8 ldc_op = CEE_LDC_I4_1;
7656 int label_null,label_false, label_end;;
7661 switch (spec->native) {
7662 case MONO_NATIVE_I1:
7663 case MONO_NATIVE_U1:
7664 stop = CEE_STIND_I1;
7666 case MONO_NATIVE_VARIANTBOOL:
7667 stop = CEE_STIND_I2;
7668 ldc_op = CEE_LDC_I4_M1;
7676 mono_mb_emit_ldarg (mb, argnum);
7677 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7679 mono_mb_emit_ldarg (mb, argnum);
7680 mono_mb_emit_ldloc (mb, conv_arg);
7682 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7683 mono_mb_emit_byte (mb, ldc_op);
7684 label_end = mono_mb_emit_branch (mb, CEE_BR);
7686 mono_mb_patch_branch (mb, label_false);
7687 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7688 mono_mb_patch_branch (mb, label_end);
7690 mono_mb_emit_byte (mb, stop);
7691 mono_mb_patch_branch (mb, label_null);
7696 g_assert_not_reached ();
7703 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7704 MonoMarshalSpec *spec, int conv_arg,
7705 MonoType **conv_arg_type, MarshalAction action)
7707 MonoMethodBuilder *mb = m->mb;
7710 case MARSHAL_ACTION_CONV_IN:
7711 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7712 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7713 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7717 case MARSHAL_ACTION_PUSH:
7718 mono_mb_emit_ldarg (mb, argnum);
7721 case MARSHAL_ACTION_CONV_RESULT:
7722 /* no conversions necessary */
7723 mono_mb_emit_stloc (mb, 3);
7734 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7735 MonoMarshalSpec *spec, int conv_arg,
7736 MonoType **conv_arg_type, MarshalAction action)
7738 MonoMethodBuilder *mb = m->mb;
7741 case MARSHAL_ACTION_PUSH:
7742 /* fixme: dont know how to marshal that. We cant simply
7743 * convert it to a one byte UTF8 character, because an
7744 * unicode character may need more that one byte in UTF8 */
7745 mono_mb_emit_ldarg (mb, argnum);
7748 case MARSHAL_ACTION_CONV_RESULT:
7749 /* fixme: we need conversions here */
7750 mono_mb_emit_stloc (mb, 3);
7761 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7762 MonoMarshalSpec *spec, int conv_arg,
7763 MonoType **conv_arg_type, MarshalAction action)
7765 MonoMethodBuilder *mb = m->mb;
7768 case MARSHAL_ACTION_PUSH:
7769 mono_mb_emit_ldarg (mb, argnum);
7772 case MARSHAL_ACTION_CONV_RESULT:
7773 /* no conversions necessary */
7774 mono_mb_emit_stloc (mb, 3);
7785 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7786 MonoMarshalSpec *spec, int conv_arg,
7787 MonoType **conv_arg_type, MarshalAction action)
7789 /* Ensure that we have marshalling info for this param */
7790 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7792 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7793 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7795 if (spec && spec->native == MONO_NATIVE_ASANY)
7796 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7799 case MONO_TYPE_VALUETYPE:
7800 if (t->data.klass == mono_defaults.handleref_class)
7801 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7803 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7804 case MONO_TYPE_STRING:
7805 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7806 case MONO_TYPE_CLASS:
7807 case MONO_TYPE_OBJECT:
7808 if (spec && spec->native == MONO_NATIVE_STRUCT)
7809 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7812 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7813 spec->native == MONO_NATIVE_IDISPATCH ||
7814 spec->native == MONO_NATIVE_INTERFACE))
7815 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7816 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7817 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7818 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7819 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7822 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7823 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7824 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7826 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7827 case MONO_TYPE_ARRAY:
7828 case MONO_TYPE_SZARRAY:
7829 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7830 case MONO_TYPE_BOOLEAN:
7831 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7833 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7834 case MONO_TYPE_CHAR:
7835 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7848 case MONO_TYPE_FNPTR:
7849 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7850 case MONO_TYPE_GENERICINST:
7851 if (mono_type_generic_inst_is_valuetype (t))
7852 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7854 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7861 * mono_marshal_emit_native_wrapper:
7862 * @image: the image to use for looking up custom marshallers
7863 * @sig: The signature of the native function
7864 * @piinfo: Marshalling information
7865 * @mspecs: Marshalling information
7866 * @aot: whenever the created method will be compiled by the AOT compiler
7867 * @method: if non-NULL, the pinvoke method to call
7868 * @check_exceptions: Whenever to check for pending exceptions after the native call
7870 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7873 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7875 EmitMarshalContext m;
7876 MonoMethodSignature *csig;
7878 int i, argnum, *tmp_locals;
7880 static MonoMethodSignature *get_last_error_sig = NULL;
7885 /* we copy the signature, so that we can set pinvoke to 0 */
7886 csig = signature_dup (mb->method->klass->image, sig);
7891 /* we allocate local for use with emit_struct_conv() */
7892 /* allocate local 0 (pointer) src_ptr */
7893 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7894 /* allocate local 1 (pointer) dst_ptr */
7895 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7896 /* allocate local 2 (boolean) delete_old */
7897 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7899 /* delete_old = FALSE */
7900 mono_mb_emit_icon (mb, 0);
7901 mono_mb_emit_stloc (mb, 2);
7903 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7904 /* allocate local 3 to store the return value */
7905 mono_mb_add_local (mb, sig->ret);
7908 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7909 /* Return type custom marshaling */
7911 * Since we can't determine the return type of the unmanaged function,
7912 * we assume it returns a pointer, and pass that pointer to
7913 * MarshalNativeToManaged.
7915 csig->ret = &mono_defaults.int_class->byval_arg;
7918 /* we first do all conversions */
7919 tmp_locals = alloca (sizeof (int) * sig->param_count);
7920 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7922 for (i = 0; i < sig->param_count; i ++) {
7923 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7926 /* push all arguments */
7929 mono_mb_emit_byte (mb, CEE_LDARG_0);
7931 for (i = 0; i < sig->param_count; i++) {
7932 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7935 /* call the native method */
7936 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7938 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7940 g_assert_not_reached ();
7945 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7946 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7947 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7948 mono_mb_emit_calli (mb, csig);
7950 mono_mb_emit_native_call (mb, csig, func);
7954 /* Set LastError if needed */
7955 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7956 if (!get_last_error_sig) {
7957 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7958 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7959 get_last_error_sig->pinvoke = 1;
7964 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7965 * clobber its value.
7967 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7968 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7970 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7974 /* convert the result */
7975 if (!sig->ret->byref) {
7976 MonoMarshalSpec *spec = mspecs [0];
7977 type = sig->ret->type;
7979 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7980 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7985 case MONO_TYPE_VOID:
7987 case MONO_TYPE_VALUETYPE:
7988 klass = sig->ret->data.klass;
7989 if (klass->enumtype) {
7990 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7993 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8007 case MONO_TYPE_FNPTR:
8008 case MONO_TYPE_STRING:
8009 case MONO_TYPE_CLASS:
8010 case MONO_TYPE_OBJECT:
8011 case MONO_TYPE_BOOLEAN:
8012 case MONO_TYPE_ARRAY:
8013 case MONO_TYPE_SZARRAY:
8014 case MONO_TYPE_CHAR:
8016 case MONO_TYPE_GENERICINST:
8017 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8019 case MONO_TYPE_TYPEDBYREF:
8021 g_warning ("return type 0x%02x unknown", sig->ret->type);
8022 g_assert_not_reached ();
8026 mono_mb_emit_stloc (mb, 3);
8030 * Need to call this after converting the result since MONO_VTADDR needs
8031 * to be adjacent to the call instruction.
8033 if (check_exceptions)
8034 emit_thread_interrupt_checkpoint (mb);
8036 /* we need to convert byref arguments back and free string arrays */
8037 for (i = 0; i < sig->param_count; i++) {
8038 MonoType *t = sig->params [i];
8039 MonoMarshalSpec *spec = mspecs [i + 1];
8041 argnum = i + sig->hasthis;
8043 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8044 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8049 case MONO_TYPE_STRING:
8050 case MONO_TYPE_VALUETYPE:
8051 case MONO_TYPE_CLASS:
8052 case MONO_TYPE_OBJECT:
8053 case MONO_TYPE_SZARRAY:
8054 case MONO_TYPE_BOOLEAN:
8055 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8060 if (!MONO_TYPE_IS_VOID(sig->ret))
8061 mono_mb_emit_ldloc (mb, 3);
8063 mono_mb_emit_byte (mb, CEE_RET);
8067 * mono_marshal_get_native_wrapper:
8068 * @method: The MonoMethod to wrap.
8069 * @check_exceptions: Whenever to check for pending exceptions
8071 * generates IL code for the pinvoke wrapper (the generated method
8072 * calls the unmanaged code in piinfo->addr)
8075 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8077 MonoMethodSignature *sig, *csig;
8078 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8079 MonoMethodBuilder *mb;
8080 MonoMarshalSpec **mspecs;
8083 gboolean pinvoke = FALSE;
8086 const char *exc_class = "MissingMethodException";
8087 const char *exc_arg = NULL;
8089 g_assert (method != NULL);
8090 g_assert (mono_method_signature (method)->pinvoke);
8093 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8095 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8096 if ((res = mono_marshal_find_in_cache (cache, method)))
8099 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8101 return mono_cominterop_get_native_wrapper (method);
8103 g_assert_not_reached ();
8107 sig = mono_method_signature (method);
8109 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8110 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8113 if (!piinfo->addr) {
8115 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8116 exc_arg = "Method contains unsupported native code";
8118 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8120 piinfo->addr = mono_lookup_internal_call (method);
8123 /* hack - redirect certain string constructors to CreateString */
8124 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8125 g_assert (!pinvoke);
8126 g_assert (method->string_ctor);
8127 g_assert (sig->hasthis);
8129 /* CreateString returns a value */
8130 csig = signature_dup (method->klass->image, sig);
8131 csig->ret = &mono_defaults.string_class->byval_arg;
8135 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8136 if (!strcmp ("CreateString", res->name) &&
8137 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8139 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8140 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8142 /* create a wrapper to preserve .ctor in stack trace */
8143 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8145 mono_mb_emit_byte (mb, CEE_LDARG_0);
8146 for (i = 1; i <= csig->param_count; i++)
8147 mono_mb_emit_ldarg (mb, i);
8148 mono_mb_emit_managed_call (mb, res, NULL);
8149 mono_mb_emit_byte (mb, CEE_RET);
8151 /* use native_wrapper_cache because internal calls are looked up there */
8152 res = mono_mb_create_and_cache (cache, method,
8153 mb, csig, csig->param_count + 1);
8161 /* exception will be thrown */
8162 piinfo->addr = NULL;
8163 g_warning ("cannot find CreateString for .ctor");
8166 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8168 mb->method->save_lmf = 1;
8171 * In AOT mode and embedding scenarios, it is possible that the icall is not
8172 * registered in the runtime doing the AOT compilation.
8174 if (!piinfo->addr && !aot) {
8175 mono_mb_emit_exception (mb, exc_class, exc_arg);
8176 csig = signature_dup (method->klass->image, sig);
8178 res = mono_mb_create_and_cache (cache, method,
8179 mb, csig, csig->param_count + 16);
8184 /* internal calls: we simply push all arguments and call the method (no conversions) */
8185 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8187 csig = signature_dup_add_this (sig, method->klass);
8189 csig = signature_dup (method->klass->image, sig);
8191 /* hack - string constructors returns a value */
8192 if (method->string_ctor)
8193 csig->ret = &mono_defaults.string_class->byval_arg;
8199 * Add a null check since public icalls can be called with 'call' which
8200 * does no such check.
8202 mono_mb_emit_byte (mb, CEE_LDARG_0);
8203 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8204 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8205 mono_mb_patch_branch (mb, pos);
8207 mono_mb_emit_byte (mb, CEE_LDARG_0);
8210 for (i = 0; i < sig->param_count; i++)
8211 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8214 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8215 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8216 mono_mb_emit_calli (mb, csig);
8218 g_assert (piinfo->addr);
8219 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8221 if (check_exceptions)
8222 emit_thread_interrupt_checkpoint (mb);
8223 mono_mb_emit_byte (mb, CEE_RET);
8225 csig = signature_dup (method->klass->image, csig);
8227 res = mono_mb_create_and_cache (cache, method,
8228 mb, csig, csig->param_count + 16);
8235 g_assert (piinfo->addr);
8237 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8238 mono_method_get_marshal_info (method, mspecs);
8240 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8242 csig = signature_dup (method->klass->image, sig);
8244 res = mono_mb_create_and_cache (cache, method,
8245 mb, csig, csig->param_count + 16);
8248 for (i = sig->param_count; i >= 0; i--)
8250 mono_metadata_free_marshal_spec (mspecs [i]);
8253 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8259 * mono_marshal_get_native_func_wrapper:
8260 * @image: The image to use for memory allocation and for looking up custom marshallers.
8261 * @sig: The signature of the function
8262 * @func: The native function to wrap
8264 * Returns a wrapper method around native functions, similar to the pinvoke
8268 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8269 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8271 MonoMethodSignature *csig;
8273 MonoMethodBuilder *mb;
8278 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8279 if ((res = mono_marshal_find_in_cache (cache, func)))
8282 name = g_strdup_printf ("wrapper_native_%p", func);
8283 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8284 mb->method->save_lmf = 1;
8286 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8288 csig = signature_dup (image, sig);
8290 res = mono_mb_create_and_cache (cache, func,
8291 mb, csig, csig->param_count + 16);
8294 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8300 * mono_marshal_emit_managed_wrapper:
8302 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8303 * the delegate which wraps the managed method to be called. For closed delegates,
8304 * it could have fewer parameters than the method it wraps.
8305 * THIS_LOC is the memory location where the target of the delegate is stored.
8308 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
8310 MonoMethodSignature *sig, *csig;
8312 gboolean closed = FALSE;
8317 /* allocate local 0 (pointer) src_ptr */
8318 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8319 /* allocate local 1 (pointer) dst_ptr */
8320 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8321 /* allocate local 2 (boolean) delete_old */
8322 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8324 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8325 /* Closed delegate */
8326 g_assert (sig->param_count == invoke_sig->param_count + 1);
8328 /* Use a new signature without the first argument */
8329 sig = mono_metadata_signature_dup (sig);
8330 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8331 sig->param_count --;
8334 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8335 /* allocate local 3 to store the return value */
8336 mono_mb_add_local (mb, sig->ret);
8339 mono_mb_emit_icon (mb, 0);
8340 mono_mb_emit_stloc (mb, 2);
8342 /* we first do all conversions */
8343 tmp_locals = alloca (sizeof (int) * sig->param_count);
8344 for (i = 0; i < sig->param_count; i ++) {
8345 MonoType *t = sig->params [i];
8348 case MONO_TYPE_OBJECT:
8349 case MONO_TYPE_CLASS:
8350 case MONO_TYPE_VALUETYPE:
8351 case MONO_TYPE_ARRAY:
8352 case MONO_TYPE_SZARRAY:
8353 case MONO_TYPE_STRING:
8354 case MONO_TYPE_BOOLEAN:
8355 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8364 emit_thread_interrupt_checkpoint (mb);
8368 mono_mb_emit_ptr (mb, this_loc);
8369 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8372 g_assert_not_reached ();
8374 } else if (closed) {
8375 mono_mb_emit_ptr (mb, this_loc);
8376 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8379 for (i = 0; i < sig->param_count; i++) {
8380 MonoType *t = sig->params [i];
8382 if (tmp_locals [i]) {
8384 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8386 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8389 mono_mb_emit_ldarg (mb, i);
8392 mono_mb_emit_managed_call (mb, method, NULL);
8394 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8395 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8396 } else if (!sig->ret->byref) {
8397 switch (sig->ret->type) {
8398 case MONO_TYPE_VOID:
8400 case MONO_TYPE_BOOLEAN:
8403 case MONO_TYPE_CHAR:
8415 case MONO_TYPE_OBJECT:
8416 mono_mb_emit_stloc (mb, 3);
8418 case MONO_TYPE_STRING:
8419 csig->ret = &mono_defaults.int_class->byval_arg;
8420 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8422 case MONO_TYPE_VALUETYPE:
8423 case MONO_TYPE_CLASS:
8424 case MONO_TYPE_SZARRAY:
8425 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8428 g_warning ("return type 0x%02x unknown", sig->ret->type);
8429 g_assert_not_reached ();
8432 mono_mb_emit_stloc (mb, 3);
8435 /* Convert byref arguments back */
8436 for (i = 0; i < sig->param_count; i ++) {
8437 MonoType *t = sig->params [i];
8438 MonoMarshalSpec *spec = mspecs [i + 1];
8440 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8441 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8443 else if (t->byref) {
8445 case MONO_TYPE_CLASS:
8446 case MONO_TYPE_VALUETYPE:
8447 case MONO_TYPE_OBJECT:
8448 case MONO_TYPE_STRING:
8449 case MONO_TYPE_BOOLEAN:
8450 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8454 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8455 /* The [Out] information is encoded in the delegate signature */
8457 case MONO_TYPE_SZARRAY:
8458 case MONO_TYPE_CLASS:
8459 case MONO_TYPE_VALUETYPE:
8460 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8463 g_assert_not_reached ();
8468 if (m->retobj_var) {
8469 mono_mb_emit_ldloc (mb, m->retobj_var);
8470 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8471 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8474 if (!MONO_TYPE_IS_VOID(sig->ret))
8475 mono_mb_emit_ldloc (mb, 3);
8476 mono_mb_emit_byte (mb, CEE_RET);
8485 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8487 MonoMethodSignature *sig;
8492 * Under windows, delegates passed to native code must use the STDCALL
8493 * calling convention.
8495 csig->call_convention = MONO_CALL_STDCALL;
8498 sig = mono_method_signature (method);
8500 /* Change default calling convention if needed */
8501 /* Why is this a modopt ? */
8502 if (sig->ret && sig->ret->num_mods) {
8503 for (i = 0; i < sig->ret->num_mods; ++i) {
8504 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8505 g_assert (cmod_class);
8506 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8507 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8508 csig->call_convention = MONO_CALL_C;
8509 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8510 csig->call_convention = MONO_CALL_STDCALL;
8511 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8512 csig->call_convention = MONO_CALL_FASTCALL;
8513 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8514 csig->call_convention = MONO_CALL_THISCALL;
8521 * generates IL code to call managed methods from unmanaged code
8524 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8526 static MonoClass *UnmanagedFunctionPointerAttribute;
8527 MonoMethodSignature *sig, *csig, *invoke_sig;
8528 MonoMethodBuilder *mb;
8529 MonoMethod *res, *invoke;
8530 MonoMarshalSpec **mspecs;
8531 MonoMethodPInvoke piinfo;
8534 EmitMarshalContext m;
8536 g_assert (method != NULL);
8537 g_assert (!mono_method_signature (method)->pinvoke);
8540 * FIXME: Should cache the method+delegate type pair, since the same method
8541 * could be called with different delegates, thus different marshalling
8544 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8545 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8548 invoke = mono_get_delegate_invoke (delegate_klass);
8549 invoke_sig = mono_method_signature (invoke);
8551 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8552 mono_method_get_marshal_info (invoke, mspecs);
8554 sig = mono_method_signature (method);
8556 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8558 /* we copy the signature, so that we can modify it */
8560 /* Need to free this later */
8561 csig = mono_metadata_signature_dup (invoke_sig);
8563 csig = signature_dup (method->klass->image, invoke_sig);
8572 m.image = method->klass->image;
8574 mono_marshal_set_callconv_from_modopt (invoke, csig);
8576 /* Handle the UnmanagedFunctionPointerAttribute */
8577 if (!UnmanagedFunctionPointerAttribute)
8578 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8580 /* The attribute is only available in Net 2.0 */
8581 if (UnmanagedFunctionPointerAttribute) {
8582 MonoCustomAttrInfo *cinfo;
8583 MonoCustomAttrEntry *attr;
8586 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8587 * contents of the attribute without constructing it, as that might not be
8588 * possible when running in cross-compiling mode.
8590 cinfo = mono_custom_attrs_from_class (delegate_klass);
8593 for (i = 0; i < cinfo->num_attrs; ++i) {
8594 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8595 attr = &cinfo->attrs [i];
8601 MonoArray *typed_args, *named_args;
8602 CattrNamedArg *arginfo;
8606 MonoBoolean set_last_error = 0;
8607 MonoBoolean best_fit_mapping = 0;
8608 MonoBoolean throw_on_unmappable = 0;
8610 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8612 g_assert (mono_array_length (typed_args) == 1);
8615 o = mono_array_get (typed_args, MonoObject*, 0);
8616 call_conv = *(gint32*)mono_object_unbox (o);
8619 for (i = 0; i < mono_array_length (named_args); ++i) {
8620 CattrNamedArg *narg = &arginfo [i];
8622 o = mono_array_get (named_args, MonoObject*, i);
8624 g_assert (narg->field);
8625 if (!strcmp (narg->field->name, "CharSet")) {
8626 charset = *(gint32*)mono_object_unbox (o);
8627 } else if (!strcmp (narg->field->name, "SetLastError")) {
8628 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8629 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8630 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8631 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8632 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8634 g_assert_not_reached ();
8640 memset (&piinfo, 0, sizeof (piinfo));
8642 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8644 csig->call_convention = call_conv - 1;
8647 if (cinfo && !cinfo->cached)
8648 mono_custom_attrs_free (cinfo);
8651 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8654 res = mono_mb_create_and_cache (cache, method,
8655 mb, csig, sig->param_count + 16);
8658 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8662 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8664 mono_metadata_free_marshal_spec (mspecs [i]);
8667 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8673 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8676 MonoMethodSignature *sig;
8677 MonoMethodBuilder *mb;
8682 method = mono_get_method (image, token, NULL);
8685 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8686 MonoMethodSignature *csig;
8687 MonoMarshalSpec **mspecs;
8688 EmitMarshalContext m;
8690 sig = mono_method_signature (method);
8691 g_assert (!sig->hasthis);
8693 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8694 mono_method_get_marshal_info (method, mspecs);
8696 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8697 csig = signature_dup (image, sig);
8708 mono_marshal_set_callconv_from_modopt (method, csig);
8710 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8712 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8715 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8718 for (i = sig->param_count; i >= 0; i--)
8720 mono_metadata_free_marshal_spec (mspecs [i]);
8723 return mono_compile_method (method);
8726 sig = mono_method_signature (method);
8727 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8729 param_count = sig->param_count + sig->hasthis;
8730 for (i = 0; i < param_count; i++)
8731 mono_mb_emit_ldarg (mb, i);
8733 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8734 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8736 mono_mb_emit_op (mb, CEE_CALL, method);
8737 mono_mb_emit_byte (mb, CEE_RET);
8740 method = mono_mb_create_method (mb, sig, param_count);
8743 return mono_compile_method (method);
8746 static MonoReflectionType *
8747 type_from_handle (MonoType *handle)
8749 MonoDomain *domain = mono_domain_get ();
8750 MonoClass *klass = mono_class_from_mono_type (handle);
8752 MONO_ARCH_SAVE_REGS;
8754 mono_class_init (klass);
8755 return mono_type_get_object (domain, handle);
8759 * mono_marshal_get_isinst:
8760 * @klass: the type of the field
8762 * This method generates a function which can be used to check if an object is
8763 * an instance of the given type, icluding the case where the object is a proxy.
8764 * The generated function has the following signature:
8765 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8768 mono_marshal_get_isinst (MonoClass *klass)
8770 static MonoMethodSignature *isint_sig = NULL;
8773 int pos_was_ok, pos_failed, pos_end, pos_end2;
8775 MonoMethodBuilder *mb;
8777 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8778 if ((res = mono_marshal_find_in_cache (cache, klass)))
8782 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8783 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8784 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8785 isint_sig->pinvoke = 0;
8788 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8789 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8792 mb->method->save_lmf = 1;
8794 /* check if the object is a proxy that needs special cast */
8795 mono_mb_emit_ldarg (mb, 0);
8796 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8797 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8799 /* The result of MONO_ISINST can be:
8800 0) the type check succeeded
8801 1) the type check did not succeed
8802 2) a CanCastTo call is needed */
8804 mono_mb_emit_byte (mb, CEE_DUP);
8805 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8807 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8808 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8810 /* get the real proxy from the transparent proxy*/
8812 mono_mb_emit_ldarg (mb, 0);
8813 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8814 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8818 mono_mb_patch_branch (mb, pos_failed);
8819 mono_mb_emit_byte (mb, CEE_LDNULL);
8820 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8824 mono_mb_patch_branch (mb, pos_was_ok);
8825 mono_mb_emit_byte (mb, CEE_POP);
8826 mono_mb_emit_ldarg (mb, 0);
8830 mono_mb_patch_branch (mb, pos_end);
8831 mono_mb_patch_branch (mb, pos_end2);
8832 mono_mb_emit_byte (mb, CEE_RET);
8834 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8841 * mono_marshal_get_castclass:
8842 * @klass: the type of the field
8844 * This method generates a function which can be used to cast an object to
8845 * an instance of the given type, icluding the case where the object is a proxy.
8846 * The generated function has the following signature:
8847 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8850 mono_marshal_get_castclass (MonoClass *klass)
8852 static MonoMethodSignature *castclass_sig = NULL;
8855 int pos_was_ok, pos_was_ok2;
8857 MonoMethodBuilder *mb;
8859 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8860 if ((res = mono_marshal_find_in_cache (cache, klass)))
8863 if (!castclass_sig) {
8864 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8865 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8866 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8867 castclass_sig->pinvoke = 0;
8870 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8871 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8874 mb->method->save_lmf = 1;
8876 /* check if the object is a proxy that needs special cast */
8877 mono_mb_emit_ldarg (mb, 0);
8878 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8879 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8881 /* The result of MONO_ISINST can be:
8882 0) the cast is valid
8883 1) cast of unknown proxy type
8884 or an exception if the cast is is invalid
8887 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8889 /* get the real proxy from the transparent proxy*/
8891 mono_mb_emit_ldarg (mb, 0);
8892 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8893 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8896 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8899 mono_mb_patch_branch (mb, pos_was_ok);
8900 mono_mb_patch_branch (mb, pos_was_ok2);
8901 mono_mb_emit_ldarg (mb, 0);
8904 mono_mb_emit_byte (mb, CEE_RET);
8906 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8913 mono_marshal_get_proxy_cancast (MonoClass *klass)
8915 static MonoMethodSignature *isint_sig = NULL;
8918 int pos_failed, pos_end;
8920 MonoMethod *can_cast_to;
8921 MonoMethodDesc *desc;
8922 MonoMethodBuilder *mb;
8924 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8925 if ((res = mono_marshal_find_in_cache (cache, klass)))
8929 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8930 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8931 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8932 isint_sig->pinvoke = 0;
8935 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8936 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8939 mb->method->save_lmf = 1;
8941 /* get the real proxy from the transparent proxy*/
8942 mono_mb_emit_ldarg (mb, 0);
8943 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8944 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8946 /* get the reflection type from the type handle */
8947 mono_mb_emit_ptr (mb, &klass->byval_arg);
8948 mono_mb_emit_icall (mb, type_from_handle);
8950 mono_mb_emit_ldarg (mb, 0);
8952 /* make the call to CanCastTo (type, ob) */
8953 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8954 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8955 g_assert (can_cast_to);
8956 mono_method_desc_free (desc);
8957 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8959 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8961 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8962 mono_mb_emit_ptr (mb, &klass->byval_arg);
8963 mono_mb_emit_icall (mb, type_from_handle);
8964 mono_mb_emit_ldarg (mb, 0);
8966 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8967 emit_thread_interrupt_checkpoint (mb);
8969 mono_mb_emit_ldarg (mb, 0);
8970 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8974 mono_mb_patch_branch (mb, pos_failed);
8975 mono_mb_emit_byte (mb, CEE_LDNULL);
8979 mono_mb_patch_branch (mb, pos_end);
8980 mono_mb_emit_byte (mb, CEE_RET);
8982 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8989 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8992 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8993 klass = mono_class_from_mono_type (rtype->type);
8994 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8998 * mono_marshal_get_struct_to_ptr:
9001 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9004 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9006 MonoMethodBuilder *mb;
9007 static MonoMethod *stoptr = NULL;
9010 g_assert (klass != NULL);
9012 mono_marshal_load_type_info (klass);
9014 if (klass->marshal_info->str_to_ptr)
9015 return klass->marshal_info->str_to_ptr;
9018 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9021 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9023 if (klass->blittable) {
9024 mono_mb_emit_byte (mb, CEE_LDARG_1);
9025 mono_mb_emit_byte (mb, CEE_LDARG_0);
9026 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9027 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9028 mono_mb_emit_byte (mb, CEE_PREFIX1);
9029 mono_mb_emit_byte (mb, CEE_CPBLK);
9032 /* allocate local 0 (pointer) src_ptr */
9033 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9034 /* allocate local 1 (pointer) dst_ptr */
9035 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9036 /* allocate local 2 (boolean) delete_old */
9037 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9038 mono_mb_emit_byte (mb, CEE_LDARG_2);
9039 mono_mb_emit_stloc (mb, 2);
9041 /* initialize src_ptr to point to the start of object data */
9042 mono_mb_emit_byte (mb, CEE_LDARG_0);
9043 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9044 mono_mb_emit_stloc (mb, 0);
9046 /* initialize dst_ptr */
9047 mono_mb_emit_byte (mb, CEE_LDARG_1);
9048 mono_mb_emit_stloc (mb, 1);
9050 emit_struct_conv (mb, klass, FALSE);
9053 mono_mb_emit_byte (mb, CEE_RET);
9055 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9058 klass->marshal_info->str_to_ptr = res;
9063 * mono_marshal_get_ptr_to_struct:
9066 * generates IL code for PtrToStructure (IntPtr src, object structure)
9069 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9071 MonoMethodBuilder *mb;
9072 static MonoMethodSignature *ptostr = NULL;
9075 g_assert (klass != NULL);
9077 mono_marshal_load_type_info (klass);
9079 if (klass->marshal_info->ptr_to_str)
9080 return klass->marshal_info->ptr_to_str;
9083 MonoMethodSignature *sig;
9085 /* Create the signature corresponding to
9086 static void PtrToStructure (IntPtr ptr, object structure);
9087 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9088 sig = mono_create_icall_signature ("void ptr object");
9089 sig = signature_dup (mono_defaults.corlib, sig);
9091 mono_memory_barrier ();
9095 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9097 if (klass->blittable) {
9098 mono_mb_emit_byte (mb, CEE_LDARG_1);
9099 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9100 mono_mb_emit_byte (mb, CEE_LDARG_0);
9101 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9102 mono_mb_emit_byte (mb, CEE_PREFIX1);
9103 mono_mb_emit_byte (mb, CEE_CPBLK);
9106 /* allocate local 0 (pointer) src_ptr */
9107 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9108 /* allocate local 1 (pointer) dst_ptr */
9109 mono_mb_add_local (mb, &klass->this_arg);
9111 /* initialize src_ptr to point to the start of object data */
9112 mono_mb_emit_byte (mb, CEE_LDARG_0);
9113 mono_mb_emit_stloc (mb, 0);
9115 /* initialize dst_ptr */
9116 mono_mb_emit_byte (mb, CEE_LDARG_1);
9117 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9118 mono_mb_emit_stloc (mb, 1);
9120 emit_struct_conv (mb, klass, TRUE);
9123 mono_mb_emit_byte (mb, CEE_RET);
9125 res = mono_mb_create_method (mb, ptostr, 0);
9128 klass->marshal_info->ptr_to_str = res;
9133 * generates IL code for the synchronized wrapper: the generated method
9134 * calls METHOD while locking 'this' or the parent type.
9137 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9139 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9140 MonoMethodSignature *sig;
9141 MonoExceptionClause *clause;
9142 MonoMethodBuilder *mb;
9145 int i, pos, this_local, ret_local = 0;
9149 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9152 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9153 if ((res = mono_marshal_find_in_cache (cache, method)))
9156 sig = signature_dup (method->klass->image, mono_method_signature (method));
9159 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9162 if (!MONO_TYPE_IS_VOID (sig->ret))
9163 ret_local = mono_mb_add_local (mb, sig->ret);
9165 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9166 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9167 /* This will throw the type load exception when the wrapper is compiled */
9168 mono_mb_emit_byte (mb, CEE_LDNULL);
9169 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9170 mono_mb_emit_byte (mb, CEE_POP);
9172 if (!MONO_TYPE_IS_VOID (sig->ret))
9173 mono_mb_emit_ldloc (mb, ret_local);
9174 mono_mb_emit_byte (mb, CEE_RET);
9176 res = mono_mb_create_and_cache (cache, method,
9177 mb, sig, sig->param_count + 16);
9184 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9186 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9187 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9189 mono_loader_lock ();
9191 if (!enter_method) {
9192 MonoMethodDesc *desc;
9194 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9195 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9196 g_assert (enter_method);
9197 mono_method_desc_free (desc);
9199 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9200 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9201 g_assert (exit_method);
9202 mono_method_desc_free (desc);
9204 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9205 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9206 g_assert (gettypefromhandle_method);
9207 mono_method_desc_free (desc);
9210 mono_loader_unlock ();
9212 /* Push this or the type object */
9213 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9214 /* We have special handling for this in the JIT */
9215 int index = mono_mb_add_data (mb, method->klass);
9216 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9217 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9218 mono_mb_emit_i4 (mb, index);
9220 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9223 mono_mb_emit_ldarg (mb, 0);
9224 mono_mb_emit_stloc (mb, this_local);
9226 /* Call Monitor::Enter() */
9227 mono_mb_emit_ldloc (mb, this_local);
9228 mono_mb_emit_managed_call (mb, enter_method, NULL);
9230 clause->try_offset = mono_mb_get_label (mb);
9232 /* Call the method */
9234 mono_mb_emit_ldarg (mb, 0);
9235 for (i = 0; i < sig->param_count; i++)
9236 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9238 mono_mb_emit_managed_call (mb, method, NULL);
9240 if (!MONO_TYPE_IS_VOID (sig->ret))
9241 mono_mb_emit_stloc (mb, ret_local);
9243 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9245 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9246 clause->handler_offset = mono_mb_get_label (mb);
9248 /* Call Monitor::Exit() */
9249 mono_mb_emit_ldloc (mb, this_local);
9250 mono_mb_emit_managed_call (mb, exit_method, NULL);
9251 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9253 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9255 mono_mb_patch_branch (mb, pos);
9256 if (!MONO_TYPE_IS_VOID (sig->ret))
9257 mono_mb_emit_ldloc (mb, ret_local);
9258 mono_mb_emit_byte (mb, CEE_RET);
9260 mono_mb_set_clauses (mb, 1, clause);
9262 res = mono_mb_create_and_cache (cache, method,
9263 mb, sig, sig->param_count + 16);
9271 * the returned method calls 'method' unboxing the this argument
9274 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9276 MonoMethodSignature *sig = mono_method_signature (method);
9278 MonoMethodBuilder *mb;
9282 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9283 if ((res = mono_marshal_find_in_cache (cache, method)))
9286 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9288 g_assert (sig->hasthis);
9290 mono_mb_emit_ldarg (mb, 0);
9291 mono_mb_emit_icon (mb, sizeof (MonoObject));
9292 mono_mb_emit_byte (mb, CEE_ADD);
9293 for (i = 0; i < sig->param_count; ++i)
9294 mono_mb_emit_ldarg (mb, i + 1);
9295 mono_mb_emit_managed_call (mb, method, NULL);
9296 mono_mb_emit_byte (mb, CEE_RET);
9298 res = mono_mb_create_and_cache (cache, method,
9299 mb, sig, sig->param_count + 16);
9302 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
9308 mono_marshal_get_stelemref ()
9310 static MonoMethod* ret = NULL;
9311 MonoMethodSignature *sig;
9312 MonoMethodBuilder *mb;
9314 guint32 b1, b2, b3, b4;
9317 int array_slot_addr;
9322 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9325 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9327 /* void stelemref (void* array, int idx, void* value) */
9328 sig->ret = &mono_defaults.void_class->byval_arg;
9329 sig->params [0] = &mono_defaults.object_class->byval_arg;
9330 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9331 sig->params [2] = &mono_defaults.object_class->byval_arg;
9333 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9334 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9335 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9339 <ldelema (bound check)>
9343 aklass = array->vtable->klass->element_class;
9344 vklass = value->vtable->klass;
9346 if (vklass->idepth < aklass->idepth)
9349 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9353 *array_slot_addr = value;
9357 if (mono_object_isinst (value, aklass))
9360 throw new ArrayTypeMismatchException ();
9363 /* ldelema (implicit bound check) */
9364 mono_mb_emit_ldarg (mb, 0);
9365 mono_mb_emit_ldarg (mb, 1);
9366 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9367 mono_mb_emit_stloc (mb, array_slot_addr);
9369 /* if (!value) goto do_store */
9370 mono_mb_emit_ldarg (mb, 2);
9371 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9373 /* aklass = array->vtable->klass->element_class */
9374 mono_mb_emit_ldarg (mb, 0);
9375 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9376 mono_mb_emit_byte (mb, CEE_LDIND_I);
9377 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9378 mono_mb_emit_byte (mb, CEE_LDIND_I);
9379 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9380 mono_mb_emit_byte (mb, CEE_LDIND_I);
9381 mono_mb_emit_stloc (mb, aklass);
9383 /* vklass = value->vtable->klass */
9384 mono_mb_emit_ldarg (mb, 2);
9385 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9386 mono_mb_emit_byte (mb, CEE_LDIND_I);
9387 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9388 mono_mb_emit_byte (mb, CEE_LDIND_I);
9389 mono_mb_emit_stloc (mb, vklass);
9391 /* if (vklass->idepth < aklass->idepth) goto failue */
9392 mono_mb_emit_ldloc (mb, vklass);
9393 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9394 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9396 mono_mb_emit_ldloc (mb, aklass);
9397 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9398 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9400 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9402 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9403 mono_mb_emit_ldloc (mb, vklass);
9404 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9405 mono_mb_emit_byte (mb, CEE_LDIND_I);
9407 mono_mb_emit_ldloc (mb, aklass);
9408 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9409 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9410 mono_mb_emit_icon (mb, 1);
9411 mono_mb_emit_byte (mb, CEE_SUB);
9412 mono_mb_emit_icon (mb, sizeof (void*));
9413 mono_mb_emit_byte (mb, CEE_MUL);
9414 mono_mb_emit_byte (mb, CEE_ADD);
9415 mono_mb_emit_byte (mb, CEE_LDIND_I);
9417 mono_mb_emit_ldloc (mb, aklass);
9419 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9421 copy_pos = mono_mb_get_label (mb);
9423 mono_mb_patch_branch (mb, b1);
9424 mono_mb_emit_ldloc (mb, array_slot_addr);
9425 mono_mb_emit_ldarg (mb, 2);
9426 mono_mb_emit_byte (mb, CEE_STIND_REF);
9428 mono_mb_emit_byte (mb, CEE_RET);
9431 mono_mb_patch_branch (mb, b2);
9432 mono_mb_patch_branch (mb, b3);
9434 mono_mb_emit_ldarg (mb, 2);
9435 mono_mb_emit_ldloc (mb, aklass);
9436 mono_mb_emit_icall (mb, mono_object_isinst);
9438 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9439 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9440 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9442 mono_mb_emit_byte (mb, CEE_RET);
9443 ret = mono_mb_create_method (mb, sig, 4);
9454 /* LOCKING: vars accessed under the marshal lock */
9455 static ArrayElemAddr *elem_addr_cache = NULL;
9456 static int elem_addr_cache_size = 0;
9457 static int elem_addr_cache_next = 0;
9460 * mono_marshal_get_array_address:
9461 * @rank: rank of the array type
9462 * @elem_size: size in bytes of an element of an array.
9464 * Returns a MonoMethd that implements the code to get the address
9465 * of an element in a multi-dimenasional array of @rank dimensions.
9466 * The returned method takes an array as the first argument and then
9467 * @rank indexes for the @rank dimensions.
9470 mono_marshal_get_array_address (int rank, int elem_size)
9473 MonoMethodBuilder *mb;
9474 MonoMethodSignature *sig;
9475 int i, bounds, ind, realidx;
9476 int branch_pos, *branch_positions;
9480 mono_marshal_lock ();
9481 for (i = 0; i < elem_addr_cache_next; ++i) {
9482 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9483 ret = elem_addr_cache [i].method;
9487 mono_marshal_unlock ();
9491 branch_positions = g_new0 (int, rank);
9493 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9495 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9496 sig->ret = &mono_defaults.int_class->byval_arg;
9497 sig->params [0] = &mono_defaults.object_class->byval_arg;
9498 for (i = 0; i < rank; ++i) {
9499 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9502 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9504 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9505 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9506 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9508 /* bounds = array->bounds; */
9509 mono_mb_emit_ldarg (mb, 0);
9510 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9511 mono_mb_emit_byte (mb, CEE_LDIND_I);
9512 mono_mb_emit_stloc (mb, bounds);
9514 /* ind is the overall element index, realidx is the partial index in a single dimension */
9515 /* ind = idx0 - bounds [0].lower_bound */
9516 mono_mb_emit_ldarg (mb, 1);
9517 mono_mb_emit_ldloc (mb, bounds);
9518 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9519 mono_mb_emit_byte (mb, CEE_ADD);
9520 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9521 mono_mb_emit_byte (mb, CEE_SUB);
9522 mono_mb_emit_stloc (mb, ind);
9523 /* if (ind >= bounds [0].length) goto exeception; */
9524 mono_mb_emit_ldloc (mb, ind);
9525 mono_mb_emit_ldloc (mb, bounds);
9526 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9527 mono_mb_emit_byte (mb, CEE_ADD);
9528 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9529 /* note that we use unsigned comparison */
9530 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9532 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9533 * We could also decide to ignore the passed elem_size and get it
9534 * from the array object, to reduce the number of methods we generate:
9535 * the additional cost is 3 memory loads and a non-immediate mul.
9537 for (i = 1; i < rank; ++i) {
9538 /* realidx = idxi - bounds [i].lower_bound */
9539 mono_mb_emit_ldarg (mb, 1 + i);
9540 mono_mb_emit_ldloc (mb, bounds);
9541 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9542 mono_mb_emit_byte (mb, CEE_ADD);
9543 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9544 mono_mb_emit_byte (mb, CEE_SUB);
9545 mono_mb_emit_stloc (mb, realidx);
9546 /* if (realidx >= bounds [i].length) goto exeception; */
9547 mono_mb_emit_ldloc (mb, realidx);
9548 mono_mb_emit_ldloc (mb, bounds);
9549 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9550 mono_mb_emit_byte (mb, CEE_ADD);
9551 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9552 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9553 /* ind = ind * bounds [i].length + realidx */
9554 mono_mb_emit_ldloc (mb, ind);
9555 mono_mb_emit_ldloc (mb, bounds);
9556 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9557 mono_mb_emit_byte (mb, CEE_ADD);
9558 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9559 mono_mb_emit_byte (mb, CEE_MUL);
9560 mono_mb_emit_ldloc (mb, realidx);
9561 mono_mb_emit_byte (mb, CEE_ADD);
9562 mono_mb_emit_stloc (mb, ind);
9565 /* return array->vector + ind * element_size */
9566 mono_mb_emit_ldarg (mb, 0);
9567 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9568 mono_mb_emit_ldloc (mb, ind);
9569 mono_mb_emit_icon (mb, elem_size);
9570 mono_mb_emit_byte (mb, CEE_MUL);
9571 mono_mb_emit_byte (mb, CEE_ADD);
9572 mono_mb_emit_byte (mb, CEE_RET);
9574 /* patch the branches to get here and throw */
9575 for (i = 1; i < rank; ++i) {
9576 mono_mb_patch_branch (mb, branch_positions [i]);
9578 mono_mb_patch_branch (mb, branch_pos);
9579 /* throw exception */
9580 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9582 g_free (branch_positions);
9583 ret = mono_mb_create_method (mb, sig, 4);
9586 /* cache the result */
9588 mono_marshal_lock ();
9589 for (i = 0; i < elem_addr_cache_next; ++i) {
9590 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9591 /* FIXME: free ret */
9592 ret = elem_addr_cache [i].method;
9598 ElementAddrWrapperInfo *info;
9600 if (elem_addr_cache_next >= elem_addr_cache_size) {
9601 int new_size = elem_addr_cache_size + 4;
9602 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9603 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9604 g_free (elem_addr_cache);
9605 elem_addr_cache = new_array;
9606 elem_addr_cache_size = new_size;
9608 elem_addr_cache [elem_addr_cache_next].rank = rank;
9609 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9610 elem_addr_cache [elem_addr_cache_next].method = ret;
9612 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
9614 info->elem_size = elem_size;
9616 mono_marshal_set_wrapper_info (ret, info);
9618 mono_marshal_unlock ();
9623 mono_marshal_alloc (gulong size)
9628 res = CoTaskMemAlloc (size);
9630 res = g_try_malloc ((gulong)size);
9632 mono_gc_out_of_memory ((gulong)size);
9638 mono_marshal_free (gpointer ptr)
9641 CoTaskMemFree (ptr);
9648 mono_marshal_free_array (gpointer *ptr, int size)
9655 for (i = 0; i < size; i++)
9661 mono_marshal_string_to_utf16 (MonoString *s)
9663 return s ? mono_string_chars (s) : NULL;
9667 mono_marshal_string_to_utf16_copy (MonoString *s)
9672 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9673 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9674 res [mono_string_length (s)] = 0;
9680 * mono_marshal_set_last_error:
9682 * This function is invoked to set the last error value from a P/Invoke call
9683 * which has SetLastError set.
9686 mono_marshal_set_last_error (void)
9689 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9691 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9696 mono_marshal_set_last_error_windows (int error)
9699 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9704 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9705 gpointer dest, gint32 length)
9710 MONO_ARCH_SAVE_REGS;
9712 MONO_CHECK_ARG_NULL (src);
9713 MONO_CHECK_ARG_NULL (dest);
9715 if (src->obj.vtable->klass->rank != 1)
9716 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9717 if (start_index < 0)
9718 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9720 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9721 if (start_index + length > mono_array_length (src))
9722 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9724 element_size = mono_array_element_size (src->obj.vtable->klass);
9726 /* no references should be involved */
9727 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9729 memcpy (dest, source_addr, length * element_size);
9733 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9734 MonoArray *dest, gint32 length)
9739 MONO_ARCH_SAVE_REGS;
9741 MONO_CHECK_ARG_NULL (src);
9742 MONO_CHECK_ARG_NULL (dest);
9744 if (dest->obj.vtable->klass->rank != 1)
9745 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9746 if (start_index < 0)
9747 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9749 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9750 if (start_index + length > mono_array_length (dest))
9751 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9753 element_size = mono_array_element_size (dest->obj.vtable->klass);
9755 /* no references should be involved */
9756 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9758 memcpy (dest_addr, src, length * element_size);
9761 #if NO_UNALIGNED_ACCESS
9762 #define RETURN_UNALIGNED(type, addr) \
9765 memcpy(&val, p + offset, sizeof(val)); \
9768 #define WRITE_UNALIGNED(type, addr, val) \
9769 memcpy(addr, &val, sizeof(type))
9771 #define RETURN_UNALIGNED(type, addr) \
9772 return *(type*)(p + offset);
9773 #define WRITE_UNALIGNED(type, addr, val) \
9774 (*(type *)(addr) = (val))
9778 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9782 MONO_ARCH_SAVE_REGS;
9784 RETURN_UNALIGNED(gpointer, p + offset);
9788 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9792 MONO_ARCH_SAVE_REGS;
9794 return *(unsigned char*)(p + offset);
9798 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9802 MONO_ARCH_SAVE_REGS;
9804 RETURN_UNALIGNED(gint16, p + offset);
9808 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9812 MONO_ARCH_SAVE_REGS;
9814 RETURN_UNALIGNED(gint32, p + offset);
9818 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9822 MONO_ARCH_SAVE_REGS;
9824 RETURN_UNALIGNED(gint64, p + offset);
9828 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9832 MONO_ARCH_SAVE_REGS;
9834 *(unsigned char*)(p + offset) = val;
9838 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9842 MONO_ARCH_SAVE_REGS;
9844 WRITE_UNALIGNED(gpointer, p + offset, val);
9848 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9852 MONO_ARCH_SAVE_REGS;
9854 WRITE_UNALIGNED(gint16, p + offset, val);
9858 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9862 MONO_ARCH_SAVE_REGS;
9864 WRITE_UNALIGNED(gint32, p + offset, val);
9868 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9872 MONO_ARCH_SAVE_REGS;
9874 WRITE_UNALIGNED(gint64, p + offset, val);
9878 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9880 MONO_ARCH_SAVE_REGS;
9885 return mono_string_new (mono_domain_get (), ptr);
9889 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9891 MONO_ARCH_SAVE_REGS;
9894 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9895 g_assert_not_reached ();
9898 return mono_string_new_len (mono_domain_get (), ptr, len);
9903 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9905 MonoDomain *domain = mono_domain_get ();
9909 MONO_ARCH_SAVE_REGS;
9917 return mono_string_new_utf16 (domain, ptr, len);
9921 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9923 MonoDomain *domain = mono_domain_get ();
9925 MONO_ARCH_SAVE_REGS;
9928 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9929 g_assert_not_reached ();
9932 return mono_string_new_utf16 (domain, ptr, len);
9937 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9939 MONO_ARCH_SAVE_REGS;
9941 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9945 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9951 MONO_ARCH_SAVE_REGS;
9953 MONO_CHECK_ARG_NULL (rtype);
9956 klass = mono_class_from_mono_type (type);
9957 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9959 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9963 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9964 exc = mono_get_exception_argument ("t", msg);
9966 mono_raise_exception (exc);
9970 return mono_class_native_size (klass, NULL);
9974 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9979 MONO_ARCH_SAVE_REGS;
9981 MONO_CHECK_ARG_NULL (obj);
9982 MONO_CHECK_ARG_NULL (dst);
9984 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9988 pa [2] = &delete_old;
9990 mono_runtime_invoke (method, NULL, pa, NULL);
9994 ptr_to_structure (gpointer src, MonoObject *dst)
9999 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10004 mono_runtime_invoke (method, NULL, pa, NULL);
10008 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10012 MONO_ARCH_SAVE_REGS;
10014 MONO_CHECK_ARG_NULL (src);
10015 MONO_CHECK_ARG_NULL (dst);
10017 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10019 if (t->type == MONO_TYPE_VALUETYPE) {
10020 MonoException *exc;
10023 tmp = g_strdup_printf ("Destination is a boxed value type.");
10024 exc = mono_get_exception_argument ("dst", tmp);
10027 mono_raise_exception (exc);
10031 ptr_to_structure (src, dst);
10035 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10037 MonoDomain *domain = mono_domain_get ();
10040 MONO_ARCH_SAVE_REGS;
10042 MONO_CHECK_ARG_NULL (src);
10043 MONO_CHECK_ARG_NULL (type);
10045 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10047 ptr_to_structure (src, res);
10053 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10055 MonoMarshalType *info;
10058 int match_index = -1;
10060 MONO_ARCH_SAVE_REGS;
10062 MONO_CHECK_ARG_NULL (type);
10063 MONO_CHECK_ARG_NULL (field_name);
10065 fname = mono_string_to_utf8 (field_name);
10066 klass = mono_class_from_mono_type (type->type);
10068 while (klass && match_index == -1) {
10069 MonoClassField* field;
10071 gpointer iter = NULL;
10072 while ((field = mono_class_get_fields (klass, &iter))) {
10073 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10075 if (!strcmp (fname, mono_field_get_name (field))) {
10082 if (match_index == -1)
10083 klass = klass->parent;
10088 if(match_index == -1) {
10089 MonoException* exc;
10092 /* Get back original class instance */
10093 klass = mono_class_from_mono_type (type->type);
10095 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10096 exc = mono_get_exception_argument ("fieldName", tmp);
10099 mono_raise_exception ((MonoException*)exc);
10102 info = mono_marshal_load_type_info (klass);
10103 return info->fields [match_index].offset;
10107 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10112 tres = mono_string_to_utf8 (string);
10116 len = strlen (tres) + 1;
10117 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10118 memcpy (ret, tres, len);
10123 return mono_string_to_utf8 (string);
10128 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10130 MONO_ARCH_SAVE_REGS;
10132 if (string == NULL)
10135 #ifdef TARGET_WIN32
10136 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10137 ((mono_string_length (string) + 1) * 2);
10139 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10141 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10142 res [mono_string_length (string)] = 0;
10148 mono_struct_delete_old (MonoClass *klass, char *ptr)
10150 MonoMarshalType *info;
10153 info = mono_marshal_load_type_info (klass);
10155 for (i = 0; i < info->num_fields; i++) {
10156 MonoMarshalNative ntype;
10157 MonoMarshalConv conv;
10158 MonoType *ftype = info->fields [i].field->type;
10161 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10164 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10165 klass->unicode, &conv);
10167 cpos = ptr + info->fields [i].offset;
10170 case MONO_MARSHAL_CONV_NONE:
10171 if (MONO_TYPE_ISSTRUCT (ftype)) {
10172 mono_struct_delete_old (ftype->data.klass, cpos);
10176 case MONO_MARSHAL_CONV_STR_LPWSTR:
10177 /* We assume this field points inside a MonoString */
10179 case MONO_MARSHAL_CONV_STR_LPTSTR:
10180 #ifdef TARGET_WIN32
10181 /* We assume this field points inside a MonoString
10185 case MONO_MARSHAL_CONV_STR_LPSTR:
10186 case MONO_MARSHAL_CONV_STR_BSTR:
10187 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10188 case MONO_MARSHAL_CONV_STR_TBSTR:
10189 mono_marshal_free (*(gpointer *)cpos);
10199 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10203 MONO_ARCH_SAVE_REGS;
10205 MONO_CHECK_ARG_NULL (src);
10206 MONO_CHECK_ARG_NULL (type);
10208 klass = mono_class_from_mono_type (type->type);
10210 mono_struct_delete_old (klass, (char *)src);
10214 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10218 MONO_ARCH_SAVE_REGS;
10220 if ((gulong)size == 0)
10221 /* This returns a valid pointer for size 0 on MS.NET */
10225 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10227 res = g_try_malloc ((gulong)size);
10230 mono_gc_out_of_memory ((gulong)size);
10236 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10241 mono_gc_out_of_memory ((gulong)size);
10246 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10248 res = g_try_realloc (ptr, (gulong)size);
10251 mono_gc_out_of_memory ((gulong)size);
10257 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10259 MONO_ARCH_SAVE_REGS;
10269 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10271 MONO_ARCH_SAVE_REGS;
10274 return CoTaskMemAlloc (size);
10276 return g_try_malloc ((gulong)size);
10281 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10283 MONO_ARCH_SAVE_REGS;
10286 CoTaskMemFree (ptr);
10293 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10295 MONO_ARCH_SAVE_REGS;
10298 return CoTaskMemRealloc (ptr, size);
10300 return g_try_realloc (ptr, (gulong)size);
10305 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10307 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10311 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10313 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10317 * mono_marshal_is_loading_type_info:
10319 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10323 mono_marshal_is_loading_type_info (MonoClass *klass)
10325 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10327 return g_slist_find (loads_list, klass) != NULL;
10331 * mono_marshal_load_type_info:
10333 * Initialize klass->marshal_info using information from metadata. This function can
10334 * recursively call itself, and the caller is responsible to avoid that by calling
10335 * mono_marshal_is_loading_type_info () beforehand.
10337 * LOCKING: Acquires the loader lock.
10340 mono_marshal_load_type_info (MonoClass* klass)
10343 guint32 native_size = 0, min_align = 1;
10344 MonoMarshalType *info;
10345 MonoClassField* field;
10348 GSList *loads_list;
10350 g_assert (klass != NULL);
10352 if (klass->marshal_info)
10353 return klass->marshal_info;
10355 if (!klass->inited)
10356 mono_class_init (klass);
10358 mono_loader_lock ();
10360 if (klass->marshal_info) {
10361 mono_loader_unlock ();
10362 return klass->marshal_info;
10366 * This function can recursively call itself, so we keep the list of classes which are
10367 * under initialization in a TLS list.
10369 g_assert (!mono_marshal_is_loading_type_info (klass));
10370 loads_list = TlsGetValue (load_type_info_tls_id);
10371 loads_list = g_slist_prepend (loads_list, klass);
10372 TlsSetValue (load_type_info_tls_id, loads_list);
10375 while ((field = mono_class_get_fields (klass, &iter))) {
10376 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10378 if (mono_field_is_deleted (field))
10383 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10385 /* The mempool is protected by the loader lock */
10386 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10387 info->num_fields = count;
10389 /* Try to find a size for this type in metadata */
10390 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10392 if (klass->parent) {
10393 int parent_size = mono_class_native_size (klass->parent, NULL);
10395 /* Add parent size to real size */
10396 native_size += parent_size;
10397 info->native_size = parent_size;
10402 while ((field = mono_class_get_fields (klass, &iter))) {
10406 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10409 if (mono_field_is_deleted (field))
10411 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10412 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10413 NULL, NULL, &info->fields [j].mspec);
10415 info->fields [j].field = field;
10417 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10418 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10419 /* This field is a hack inserted by MCS to empty structures */
10424 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10425 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10426 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10427 &align, TRUE, klass->unicode);
10428 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10429 min_align = MAX (align, min_align);
10430 info->fields [j].offset = info->native_size;
10431 info->fields [j].offset += align - 1;
10432 info->fields [j].offset &= ~(align - 1);
10433 info->native_size = info->fields [j].offset + size;
10435 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10436 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10437 &align, TRUE, klass->unicode);
10438 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10439 min_align = MAX (align, min_align);
10440 info->fields [j].offset = field->offset - sizeof (MonoObject);
10441 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10447 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10448 info->native_size = MAX (native_size, info->native_size);
10451 if (info->native_size & (min_align - 1)) {
10452 info->native_size += min_align - 1;
10453 info->native_size &= ~(min_align - 1);
10456 info->min_align = min_align;
10458 /* Update the class's blittable info, if the layouts don't match */
10459 if (info->native_size != mono_class_value_size (klass, NULL))
10460 klass->blittable = FALSE;
10462 /* If this is an array type, ensure that we have element info */
10463 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10464 mono_marshal_load_type_info (klass->element_class);
10467 loads_list = TlsGetValue (load_type_info_tls_id);
10468 loads_list = g_slist_remove (loads_list, klass);
10469 TlsSetValue (load_type_info_tls_id, loads_list);
10471 /*We do double-checking locking on marshal_info */
10472 mono_memory_barrier ();
10474 klass->marshal_info = info;
10476 mono_loader_unlock ();
10478 return klass->marshal_info;
10482 * mono_class_native_size:
10485 * Returns: the native size of an object instance (when marshaled
10486 * to unmanaged code)
10489 mono_class_native_size (MonoClass *klass, guint32 *align)
10491 if (!klass->marshal_info) {
10492 if (mono_marshal_is_loading_type_info (klass)) {
10497 mono_marshal_load_type_info (klass);
10502 *align = klass->marshal_info->min_align;
10504 return klass->marshal_info->native_size;
10507 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10508 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10509 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10510 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10513 * mono_type_native_stack_size:
10514 * @t: the type to return the size it uses on the stack
10516 * Returns: the number of bytes required to hold an instance of this
10517 * type on the native stack
10520 mono_type_native_stack_size (MonoType *t, guint32 *align)
10524 g_assert (t != NULL);
10530 *align = sizeof (gpointer);
10531 return sizeof (gpointer);
10535 case MONO_TYPE_BOOLEAN:
10536 case MONO_TYPE_CHAR:
10547 case MONO_TYPE_STRING:
10548 case MONO_TYPE_OBJECT:
10549 case MONO_TYPE_CLASS:
10550 case MONO_TYPE_SZARRAY:
10551 case MONO_TYPE_PTR:
10552 case MONO_TYPE_FNPTR:
10553 case MONO_TYPE_ARRAY:
10554 *align = sizeof (gpointer);
10555 return sizeof (gpointer);
10560 *align = ALIGNMENT (gdouble);
10564 *align = ALIGNMENT (glong);
10566 case MONO_TYPE_GENERICINST:
10567 if (!mono_type_generic_inst_is_valuetype (t)) {
10568 *align = sizeof (gpointer);
10569 return sizeof (gpointer);
10572 case MONO_TYPE_TYPEDBYREF:
10573 case MONO_TYPE_VALUETYPE: {
10575 MonoClass *klass = mono_class_from_mono_type (t);
10577 if (klass->enumtype)
10578 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10580 size = mono_class_native_size (klass, align);
10581 *align = *align + 3;
10591 g_error ("type 0x%02x unknown", t->type);
10597 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10598 gboolean as_field, gboolean unicode)
10600 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10603 switch (native_type) {
10604 case MONO_NATIVE_BOOLEAN:
10607 case MONO_NATIVE_I1:
10608 case MONO_NATIVE_U1:
10611 case MONO_NATIVE_I2:
10612 case MONO_NATIVE_U2:
10613 case MONO_NATIVE_VARIANTBOOL:
10616 case MONO_NATIVE_I4:
10617 case MONO_NATIVE_U4:
10618 case MONO_NATIVE_ERROR:
10621 case MONO_NATIVE_I8:
10622 case MONO_NATIVE_U8:
10623 *align = ALIGNMENT(guint64);
10625 case MONO_NATIVE_R4:
10628 case MONO_NATIVE_R8:
10629 *align = ALIGNMENT(double);
10631 case MONO_NATIVE_INT:
10632 case MONO_NATIVE_UINT:
10633 case MONO_NATIVE_LPSTR:
10634 case MONO_NATIVE_LPWSTR:
10635 case MONO_NATIVE_LPTSTR:
10636 case MONO_NATIVE_BSTR:
10637 case MONO_NATIVE_ANSIBSTR:
10638 case MONO_NATIVE_TBSTR:
10639 case MONO_NATIVE_LPARRAY:
10640 case MONO_NATIVE_SAFEARRAY:
10641 case MONO_NATIVE_IUNKNOWN:
10642 case MONO_NATIVE_IDISPATCH:
10643 case MONO_NATIVE_INTERFACE:
10644 case MONO_NATIVE_ASANY:
10645 case MONO_NATIVE_FUNC:
10646 case MONO_NATIVE_LPSTRUCT:
10647 *align = ALIGNMENT(gpointer);
10648 return sizeof (gpointer);
10649 case MONO_NATIVE_STRUCT:
10650 klass = mono_class_from_mono_type (type);
10651 if (klass == mono_defaults.object_class &&
10652 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10656 return mono_class_native_size (klass, align);
10657 case MONO_NATIVE_BYVALTSTR: {
10658 int esize = unicode ? 2: 1;
10661 return mspec->data.array_data.num_elem * esize;
10663 case MONO_NATIVE_BYVALARRAY: {
10664 // FIXME: Have to consider ArraySubType
10666 klass = mono_class_from_mono_type (type);
10667 if (klass->element_class == mono_defaults.char_class) {
10668 esize = unicode ? 2 : 1;
10671 esize = mono_class_native_size (klass->element_class, align);
10674 return mspec->data.array_data.num_elem * esize;
10676 case MONO_NATIVE_CUSTOM:
10677 *align = sizeof (gpointer);
10678 return sizeof (gpointer);
10680 case MONO_NATIVE_CURRENCY:
10681 case MONO_NATIVE_VBBYREFSTR:
10683 g_error ("native type %02x not implemented", native_type);
10686 g_assert_not_reached ();
10691 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10699 t = &o->vtable->klass->byval_arg;
10703 case MONO_TYPE_PTR:
10706 case MONO_TYPE_BOOLEAN:
10709 case MONO_TYPE_CHAR:
10714 return mono_object_unbox (o);
10716 case MONO_TYPE_STRING:
10717 switch (string_encoding) {
10718 case MONO_NATIVE_LPWSTR:
10719 return mono_string_to_utf16 ((MonoString*)o);
10721 case MONO_NATIVE_LPSTR:
10722 return mono_string_to_lpstr ((MonoString*)o);
10725 g_warning ("marshaling conversion %d not implemented", string_encoding);
10726 g_assert_not_reached ();
10729 case MONO_TYPE_CLASS:
10730 case MONO_TYPE_VALUETYPE: {
10731 MonoMethod *method;
10734 MonoBoolean delete_old = FALSE;
10736 klass = t->data.klass;
10738 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10741 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10742 klass->blittable || klass->enumtype))
10743 return mono_object_unbox (o);
10745 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10747 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10748 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10752 pa [2] = &delete_old;
10754 mono_runtime_invoke (method, NULL, pa, NULL);
10761 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10767 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10775 t = &o->vtable->klass->byval_arg;
10777 case MONO_TYPE_STRING:
10778 switch (string_encoding) {
10779 case MONO_NATIVE_LPWSTR:
10780 case MONO_NATIVE_LPSTR:
10781 mono_marshal_free (ptr);
10784 g_warning ("marshaling conversion %d not implemented", string_encoding);
10785 g_assert_not_reached ();
10788 case MONO_TYPE_CLASS:
10789 case MONO_TYPE_VALUETYPE: {
10790 klass = t->data.klass;
10792 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10793 klass->blittable || klass->enumtype))
10796 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10797 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10803 mono_runtime_invoke (method, NULL, pa, NULL);
10806 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10807 mono_struct_delete_old (klass, ptr);
10810 mono_marshal_free (ptr);
10819 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10821 MonoMethodSignature *sig, *csig;
10822 MonoMethodBuilder *mb;
10826 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10827 mb->method->slot = -1;
10829 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10830 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10832 sig = mono_method_signature (method);
10833 csig = signature_dup (method->klass->image, sig);
10834 csig->generic_param_count = 0;
10836 mono_mb_emit_ldarg (mb, 0);
10837 for (i = 0; i < csig->param_count; i++)
10838 mono_mb_emit_ldarg (mb, i + 1);
10839 mono_mb_emit_managed_call (mb, method, NULL);
10840 mono_mb_emit_byte (mb, CEE_RET);
10842 /* We can corlib internal methods */
10843 mb->skip_visibility = TRUE;
10845 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10853 * The mono_win32_compat_* functions are implementations of inline
10854 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10855 * although not exported by kernel32.
10857 * We map the appropiate kernel32 entries to these functions using
10858 * dllmaps declared in the global etc/mono/config.
10862 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10864 if (!dest || !source)
10867 memcpy (dest, source, length);
10871 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10873 memset (dest, fill, length);
10877 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10879 if (!dest || !source)
10882 memmove (dest, source, length);
10886 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10888 memset (dest, 0, length);
10892 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10897 for (i = 0; i < len; ++i)
10901 g_assert (i < len);
10904 while (byte && !(byte & 1))
10906 g_assert (byte == 1);
10909 *bitmask = buf [i];
10913 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10915 MonoMethodBuilder *mb;
10916 MonoMethodSignature *sig, *csig;
10917 MonoExceptionClause *clause;
10922 int i, param_count, sig_size, pos_leave;
10926 klass = method->klass;
10927 image = method->klass->image;
10928 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10930 if ((res = mono_marshal_find_in_cache (cache, method)))
10933 sig = mono_method_signature (method);
10934 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10936 /* add "this" and exception param */
10937 param_count = sig->param_count + sig->hasthis + 1;
10939 /* dup & extend signature */
10940 csig = mono_metadata_signature_alloc (image, param_count);
10941 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10942 memcpy (csig, sig, sig_size);
10943 csig->param_count = param_count;
10946 csig->call_convention = MONO_CALL_DEFAULT;
10948 if (sig->hasthis) {
10950 csig->params [0] = &klass->byval_arg;
10951 /* move params up by one */
10952 for (i = 0; i < sig->param_count; i++)
10953 csig->params [i + 1] = sig->params [i];
10956 /* setup exception param as byref+[out] */
10957 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10958 &mono_defaults.exception_class->byval_arg);
10959 csig->params [param_count - 1]->byref = 1;
10960 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10962 /* convert struct return to object */
10963 if (MONO_TYPE_ISSTRUCT (sig->ret))
10964 csig->ret = &mono_defaults.object_class->byval_arg;
10966 /* local 0 (temp for exception object) */
10967 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10969 /* local 1 (temp for result) */
10970 if (!MONO_TYPE_IS_VOID (sig->ret))
10971 mono_mb_add_local (mb, sig->ret);
10973 /* clear exception arg */
10974 mono_mb_emit_ldarg (mb, param_count - 1);
10975 mono_mb_emit_byte (mb, CEE_LDNULL);
10976 mono_mb_emit_byte (mb, CEE_STIND_REF);
10979 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10980 clause->try_offset = mono_mb_get_label (mb);
10982 /* push method's args */
10983 for (i = 0; i < param_count - 1; i++) {
10987 mono_mb_emit_ldarg (mb, i);
10989 /* get the byval type of the param */
10990 klass = mono_class_from_mono_type (csig->params [i]);
10991 type = &klass->byval_arg;
10993 /* unbox struct args */
10994 if (MONO_TYPE_ISSTRUCT (type)) {
10995 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10997 /* byref args & and the "this" arg must remain a ptr.
10998 Otherwise make a copy of the value type */
10999 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11000 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11002 csig->params [i] = &mono_defaults.object_class->byval_arg;
11007 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11008 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11010 mono_mb_emit_op (mb, CEE_CALL, method);
11012 /* save result at local 1 */
11013 if (!MONO_TYPE_IS_VOID (sig->ret))
11014 mono_mb_emit_stloc (mb, 1);
11016 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11019 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11020 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11021 clause->data.catch_class = mono_defaults.object_class;
11023 clause->handler_offset = mono_mb_get_label (mb);
11025 /* store exception at local 0 */
11026 mono_mb_emit_stloc (mb, 0);
11027 mono_mb_emit_ldarg (mb, param_count - 1);
11028 mono_mb_emit_ldloc (mb, 0);
11029 mono_mb_emit_byte (mb, CEE_STIND_REF);
11030 mono_mb_emit_branch (mb, CEE_LEAVE);
11032 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11034 mono_mb_set_clauses (mb, 1, clause);
11036 mono_mb_patch_branch (mb, pos_leave);
11039 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11040 mono_mb_emit_ldloc (mb, 1);
11042 /* box the return value */
11043 if (MONO_TYPE_ISSTRUCT (sig->ret))
11044 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11047 mono_mb_emit_byte (mb, CEE_RET);
11049 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11056 * mono_marshal_free_dynamic_wrappers:
11058 * Free wrappers of the dynamic method METHOD.
11061 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11063 g_assert (method->dynamic);
11065 mono_marshal_lock ();
11067 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11068 * they could be shared with other methods ?
11070 if (method->klass->image->runtime_invoke_direct_cache)
11071 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11072 mono_marshal_unlock ();
11076 * mono_marshal_free_inflated_wrappers:
11078 * Free wrappers of the inflated method METHOD.
11082 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11084 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11085 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11087 return mono_metadata_signature_equal (pair->sig, sig);
11091 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11093 MonoMethodSignature *sig = method->signature;
11095 g_assert (method->is_inflated);
11097 /* Ignore calls occuring late during cleanup. */
11098 if (!marshal_mutex_initialized)
11101 mono_marshal_lock ();
11103 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11104 * they could be shared with other methods ?
11108 * indexed by MonoMethodSignature
11110 /* FIXME: This could remove unrelated wrappers as well */
11111 if (sig && method->klass->image->delegate_begin_invoke_cache)
11112 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11113 if (sig && method->klass->image->delegate_end_invoke_cache)
11114 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11115 if (sig && method->klass->image->delegate_invoke_cache)
11116 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11117 if (sig && method->klass->image->runtime_invoke_cache)
11118 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11121 * indexed by SignatureMethodPair
11123 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11124 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11125 signature_method_pair_matches_signature, (gpointer)sig);
11128 * indexed by MonoMethod pointers
11130 if (method->klass->image->runtime_invoke_direct_cache)
11131 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11132 if (method->klass->image->managed_wrapper_cache)
11133 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11134 if (method->klass->image->native_wrapper_cache)
11135 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11136 if (method->klass->image->remoting_invoke_cache)
11137 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11138 if (method->klass->image->synchronized_cache)
11139 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11140 if (method->klass->image->unbox_wrapper_cache)
11141 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11142 if (method->klass->image->cominterop_invoke_cache)
11143 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11144 if (method->klass->image->cominterop_wrapper_cache)
11145 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11146 if (method->klass->image->thunk_invoke_cache)
11147 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11149 mono_marshal_unlock ();