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);
105 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
108 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
111 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
113 static MonoAsyncResult *
114 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
117 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
120 mono_marshal_xdomain_copy_value (MonoObject *val);
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 static void runtime_invoke_reset_abort (MonoException *ex);
144 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
145 static MonoMethod *sh_dangerous_add_ref;
146 static MonoMethod *sh_dangerous_release;
152 sh_dangerous_add_ref = mono_class_get_method_from_name (
153 mono_defaults.safehandle_class, "DangerousAddRef", 1);
154 sh_dangerous_release = mono_class_get_method_from_name (
155 mono_defaults.safehandle_class, "DangerousRelease", 0);
159 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
161 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
163 mono_register_jit_icall (func, name, sig, save);
166 static MonoMethodSignature*
167 signature_dup (MonoImage *image, MonoMethodSignature *sig)
169 MonoMethodSignature *res;
172 res = mono_metadata_signature_alloc (image, sig->param_count);
173 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
174 memcpy (res, sig, sigsize);
180 mono_signature_no_pinvoke (MonoMethod *method)
182 MonoMethodSignature *sig = mono_method_signature (method);
184 sig = signature_dup (method->klass->image, sig);
185 sig->pinvoke = FALSE;
192 mono_marshal_init (void)
194 static gboolean module_initialized = FALSE;
196 if (!module_initialized) {
197 module_initialized = TRUE;
198 InitializeCriticalSection (&marshal_mutex);
199 marshal_mutex_initialized = TRUE;
200 last_error_tls_id = TlsAlloc ();
201 load_type_info_tls_id = TlsAlloc ();
203 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
204 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
205 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
206 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
207 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
208 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
209 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
210 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
211 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
212 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
213 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
214 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
215 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
216 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
217 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
218 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
219 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
220 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
221 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
222 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
223 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
224 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
225 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
226 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
227 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
228 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
229 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
230 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
231 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
232 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
233 register_icall (g_free, "g_free", "void ptr", FALSE);
234 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
235 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
236 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
237 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
238 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
239 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
240 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
241 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
242 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
243 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
244 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
245 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
246 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
247 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
248 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
249 register_icall (runtime_invoke_reset_abort, "runtime_invoke_reset_abort", "void object", FALSE);
251 mono_cominterop_init ();
256 mono_marshal_cleanup (void)
258 mono_cominterop_cleanup ();
260 TlsFree (load_type_info_tls_id);
261 TlsFree (last_error_tls_id);
262 DeleteCriticalSection (&marshal_mutex);
263 marshal_mutex_initialized = FALSE;
266 MonoClass *byte_array_class;
267 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
268 static MonoMethod *method_set_context, *method_get_context;
269 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
272 mono_remoting_marshal_init (void)
276 static gboolean module_initialized = FALSE;
278 if (!module_initialized) {
279 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
280 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
281 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
282 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
284 klass = mono_defaults.real_proxy_class;
285 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
287 klass = mono_defaults.exception_class;
288 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
290 klass = mono_defaults.thread_class;
291 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
293 klass = mono_defaults.appdomain_class;
294 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
295 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
297 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
298 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
300 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
301 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
303 module_initialized = TRUE;
308 mono_delegate_to_ftnptr (MonoDelegate *delegate)
310 MonoMethod *method, *wrapper;
312 MonoObject **target_loc;
317 if (delegate->delegate_trampoline)
318 return delegate->delegate_trampoline;
320 klass = ((MonoObject *)delegate)->vtable->klass;
321 g_assert (klass->delegate);
323 method = delegate->method;
325 if (mono_method_signature (method)->pinvoke) {
326 const char *exc_class, *exc_arg;
329 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
331 g_assert (exc_class);
332 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
337 if (delegate->target) {
338 /* Produce a location which can be embedded in JITted code */
339 target_loc = mono_gc_alloc_fixed (sizeof (MonoObject*), NULL);
340 *target_loc = delegate->target;
345 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_loc);
347 delegate->delegate_trampoline = mono_compile_method (wrapper);
349 // Add the delegate to the delegate hash table
350 delegate_hash_table_add (delegate, target_loc);
352 /* when the object is collected, collect the dynamic method, too */
353 mono_object_register_finalizer ((MonoObject*)delegate);
355 return delegate->delegate_trampoline;
359 * this hash table maps from a delegate trampoline object to a weak reference
360 * of the delegate. As an optimizations with a non-moving GC we store the
361 * object pointer itself, otherwise we use a GC handle.
363 static GHashTable *delegate_hash_table;
364 /* Contains root locations pointing to the this arguments of delegates */
365 static MonoGHashTable *delegate_target_locations;
368 delegate_hash_table_new (void) {
369 return g_hash_table_new (NULL, NULL);
373 delegate_hash_table_remove (MonoDelegate *d)
375 MonoObject **target_loc;
376 #ifdef HAVE_MOVING_COLLECTOR
379 mono_marshal_lock ();
380 if (delegate_hash_table == NULL)
381 delegate_hash_table = delegate_hash_table_new ();
382 #ifdef HAVE_MOVING_COLLECTOR
383 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
385 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
386 if (delegate_target_locations)
387 target_loc = mono_g_hash_table_lookup (delegate_target_locations, d->delegate_trampoline);
391 mono_g_hash_table_remove (delegate_target_locations, d->delegate_trampoline);
392 mono_marshal_unlock ();
394 mono_gc_free_fixed (target_loc);
396 #ifdef HAVE_MOVING_COLLECTOR
397 mono_gchandle_free (gchandle);
402 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc)
404 #ifdef HAVE_MOVING_COLLECTOR
405 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
406 guint32 old_gchandle;
408 mono_marshal_lock ();
409 if (delegate_hash_table == NULL)
410 delegate_hash_table = delegate_hash_table_new ();
411 if (delegate_target_locations == NULL) {
412 /* Has to be conservative as the values are not object references */
413 delegate_target_locations = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_CONSERVATIVE_GC);
414 MONO_GC_REGISTER_ROOT (delegate_target_locations);
416 #ifdef HAVE_MOVING_COLLECTOR
417 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
418 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
420 mono_gchandle_free (old_gchandle);
422 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
425 /* This keeps target_loc alive for Boehm */
426 mono_g_hash_table_insert (delegate_target_locations, d->delegate_trampoline, target_loc);
427 mono_marshal_unlock ();
431 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
433 #ifdef HAVE_MOVING_COLLECTOR
441 mono_marshal_lock ();
442 if (delegate_hash_table == NULL)
443 delegate_hash_table = delegate_hash_table_new ();
445 #ifdef HAVE_MOVING_COLLECTOR
446 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
447 mono_marshal_unlock ();
449 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
453 d = g_hash_table_lookup (delegate_hash_table, ftn);
454 mono_marshal_unlock ();
457 /* This is a native function, so construct a delegate for it */
458 static MonoClass *UnmanagedFunctionPointerAttribute;
459 MonoMethodSignature *sig;
461 MonoMarshalSpec **mspecs;
462 MonoCustomAttrInfo *cinfo;
463 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
464 MonoMethod *invoke = mono_get_delegate_invoke (klass);
465 MonoMethodPInvoke piinfo;
468 memset (&piinfo, 0, sizeof (piinfo));
469 if (!UnmanagedFunctionPointerAttribute)
470 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
472 /* The attribute is only available in Net 2.0 */
473 if (UnmanagedFunctionPointerAttribute) {
475 * The pinvoke attributes are stored in a real custom attribute so we have to
478 cinfo = mono_custom_attrs_from_class (klass);
480 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
482 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
485 mono_custom_attrs_free (cinfo);
489 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
490 mono_method_get_marshal_info (invoke, mspecs);
491 /* Freed below so don't alloc from mempool */
492 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
495 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
497 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
499 mono_metadata_free_marshal_spec (mspecs [i]);
503 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
504 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
507 if (d->object.vtable->domain != mono_domain_get ())
508 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
514 mono_delegate_free_ftnptr (MonoDelegate *delegate)
519 delegate_hash_table_remove (delegate);
521 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
523 if (!delegate->target) {
524 /* The wrapper method is shared between delegates -> no need to free it */
529 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
532 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
537 mono_array_to_savearray (MonoArray *array)
542 g_assert_not_reached ();
547 mono_array_to_lparray (MonoArray *array)
549 gpointer *nativeArray = NULL;
550 int nativeArraySize = 0;
559 klass = array->obj.vtable->klass;
561 switch (klass->element_class->byval_arg.type) {
563 g_assert_not_reached ();
565 case MONO_TYPE_CLASS:
566 nativeArraySize = array->max_length;
567 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
568 for(i = 0; i < nativeArraySize; ++i)
569 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_builder_to_utf8:
763 * @sb: the string builder
765 * Converts to utf8 the contents of the MonoStringBuilder.
767 * Returns: a utf8 string with the contents of the StringBuilder.
769 * The return value must be released with g_free.
772 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
774 GError *error = NULL;
775 gchar *tmp, *res = NULL;
780 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
782 * The sb could have been allocated with the default capacity and be empty.
783 * we need to alloc a buffer of the default capacity in this case.
785 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
786 sb->cached_str = NULL;
789 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
791 g_error_free (error);
792 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
794 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
795 memcpy (res, tmp, sb->length + 1);
803 * mono_string_builder_to_utf16:
804 * @sb: the string builder
806 * Converts to utf16 the contents of the MonoStringBuilder.
808 * Returns: a utf16 string with the contents of the StringBuilder.
810 * The return value must not be freed.
813 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
821 * The stringbuilder might not have ownership of this string. If this is
822 * the case, we must duplicate the string, so that we don't munge immutable
825 if (sb->str == sb->cached_str) {
827 * The sb could have been allocated with the default capacity and be empty.
828 * we need to alloc a buffer of the default capacity in this case.
830 if (sb->str->length == 0)
831 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
833 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
834 sb->cached_str = NULL;
837 return mono_string_chars (sb->str);
841 mono_string_to_lpstr (MonoString *s)
843 #ifdef PLATFORM_WIN32
846 GError *error = NULL;
852 as = CoTaskMemAlloc (1);
857 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
859 MonoException *exc = mono_get_exception_argument ("string", error->message);
860 g_error_free (error);
861 mono_raise_exception(exc);
864 as = CoTaskMemAlloc (len + 1);
865 memcpy (as, tmp, len + 1);
870 return mono_string_to_utf8 (s);
875 mono_string_to_ansibstr (MonoString *string_obj)
877 g_error ("UnmanagedMarshal.BStr is not implemented.");
882 * mono_string_to_byvalstr:
883 * @dst: Where to store the null-terminated utf8 decoded string.
884 * @src: the MonoString to copy.
885 * @size: the maximum number of bytes to copy.
887 * Copies the MonoString pointed to by @src as a utf8 string
888 * into @dst, it copies at most @size bytes into the destination.
891 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
896 g_assert (dst != NULL);
899 memset (dst, 0, size);
903 s = mono_string_to_utf8 (src);
904 len = MIN (size, strlen (s));
907 memcpy (dst, s, len);
912 * mono_string_to_byvalwstr:
913 * @dst: Where to store the null-terminated utf16 decoded string.
914 * @src: the MonoString to copy.
915 * @size: the maximum number of bytes to copy.
917 * Copies the MonoString pointed to by @src as a utf16 string into
918 * @dst, it copies at most @size bytes into the destination (including
919 * a terminating 16-bit zero terminator).
922 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
926 g_assert (dst != NULL);
930 memset (dst, 0, size * 2);
934 len = MIN (size, (mono_string_length (src)));
935 memcpy (dst, mono_string_chars (src), size * 2);
936 if (size <= mono_string_length (src))
938 *((gunichar2 *) dst + len) = 0;
942 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
945 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
946 mono_mb_emit_byte (mb, CEE_LDIND_I);
947 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
948 mono_mb_emit_byte (mb, CEE_ADD);
949 mono_mb_emit_byte (mb, CEE_LDIND_I);
950 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
951 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
952 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
953 pos = mono_mb_emit_branch (mb, branch_code);
958 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
961 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
962 mono_mb_emit_byte (mb, CEE_LDIND_REF);
963 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
964 mono_mb_emit_byte (mb, CEE_LDIND_I4);
965 mono_mb_emit_icon (mb, -1);
966 pos = mono_mb_emit_branch (mb, branch_code);
971 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
973 static int offset = -1;
977 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
979 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
980 mono_mb_emit_byte (mb, CEE_LDIND_REF);
981 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
982 mono_mb_emit_byte (mb, CEE_LDIND_REF);
983 mono_mb_emit_ldflda (mb, offset);
984 mono_mb_emit_byte (mb, CEE_LDIND_U1);
985 mono_mb_emit_icon (mb, mask);
986 mono_mb_emit_byte (mb, CEE_AND);
987 mono_mb_emit_icon (mb, 0);
988 return mono_mb_emit_branch (mb, branch_code);
992 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
994 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
998 mono_type_to_ldind (MonoType *type)
1004 switch (type->type) {
1006 return CEE_LDIND_I1;
1008 case MONO_TYPE_BOOLEAN:
1009 return CEE_LDIND_U1;
1011 return CEE_LDIND_I2;
1013 case MONO_TYPE_CHAR:
1014 return CEE_LDIND_U2;
1016 return CEE_LDIND_I4;
1018 return CEE_LDIND_U4;
1022 case MONO_TYPE_FNPTR:
1024 case MONO_TYPE_CLASS:
1025 case MONO_TYPE_STRING:
1026 case MONO_TYPE_OBJECT:
1027 case MONO_TYPE_SZARRAY:
1028 case MONO_TYPE_ARRAY:
1029 return CEE_LDIND_REF;
1032 return CEE_LDIND_I8;
1034 return CEE_LDIND_R4;
1036 return CEE_LDIND_R8;
1037 case MONO_TYPE_VALUETYPE:
1038 if (type->data.klass->enumtype) {
1039 type = mono_class_enum_basetype (type->data.klass);
1043 case MONO_TYPE_TYPEDBYREF:
1045 case MONO_TYPE_GENERICINST:
1046 type = &type->data.generic_class->container_class->byval_arg;
1049 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1055 mono_type_to_stind (MonoType *type)
1061 switch (type->type) {
1064 case MONO_TYPE_BOOLEAN:
1065 return CEE_STIND_I1;
1068 case MONO_TYPE_CHAR:
1069 return CEE_STIND_I2;
1072 return CEE_STIND_I4;
1076 case MONO_TYPE_FNPTR:
1078 case MONO_TYPE_CLASS:
1079 case MONO_TYPE_STRING:
1080 case MONO_TYPE_OBJECT:
1081 case MONO_TYPE_SZARRAY:
1082 case MONO_TYPE_ARRAY:
1083 return CEE_STIND_REF;
1086 return CEE_STIND_I8;
1088 return CEE_STIND_R4;
1090 return CEE_STIND_R8;
1091 case MONO_TYPE_VALUETYPE:
1092 if (type->data.klass->enumtype) {
1093 type = mono_class_enum_basetype (type->data.klass);
1097 case MONO_TYPE_TYPEDBYREF:
1099 case MONO_TYPE_GENERICINST:
1100 type = &type->data.generic_class->container_class->byval_arg;
1103 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1109 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1112 case MONO_MARSHAL_CONV_BOOL_I4:
1113 mono_mb_emit_ldloc (mb, 1);
1114 mono_mb_emit_ldloc (mb, 0);
1115 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1116 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1117 mono_mb_emit_byte (mb, 3);
1118 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1119 mono_mb_emit_byte (mb, CEE_BR_S);
1120 mono_mb_emit_byte (mb, 1);
1121 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1122 mono_mb_emit_byte (mb, CEE_STIND_I1);
1124 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1125 mono_mb_emit_ldloc (mb, 1);
1126 mono_mb_emit_ldloc (mb, 0);
1127 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1128 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1129 mono_mb_emit_byte (mb, 3);
1130 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1131 mono_mb_emit_byte (mb, CEE_BR_S);
1132 mono_mb_emit_byte (mb, 1);
1133 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1134 mono_mb_emit_byte (mb, CEE_STIND_I1);
1136 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1137 MonoClass *eklass = NULL;
1140 if (type->type == MONO_TYPE_SZARRAY) {
1141 eklass = type->data.klass;
1143 g_assert_not_reached ();
1146 esize = mono_class_native_size (eklass, NULL);
1148 /* create a new array */
1149 mono_mb_emit_ldloc (mb, 1);
1150 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1151 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1152 mono_mb_emit_byte (mb, CEE_STIND_I);
1154 if (eklass->blittable) {
1155 /* copy the elements */
1156 mono_mb_emit_ldloc (mb, 1);
1157 mono_mb_emit_byte (mb, CEE_LDIND_I);
1158 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1159 mono_mb_emit_byte (mb, CEE_ADD);
1160 mono_mb_emit_ldloc (mb, 0);
1161 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1162 mono_mb_emit_byte (mb, CEE_PREFIX1);
1163 mono_mb_emit_byte (mb, CEE_CPBLK);
1166 int array_var, src_var, dst_var, index_var;
1167 guint32 label2, label3;
1169 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1170 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1171 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1174 mono_mb_emit_ldloc (mb, 1);
1175 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1176 mono_mb_emit_stloc (mb, array_var);
1178 /* save the old src pointer */
1179 mono_mb_emit_ldloc (mb, 0);
1180 mono_mb_emit_stloc (mb, src_var);
1181 /* save the old dst pointer */
1182 mono_mb_emit_ldloc (mb, 1);
1183 mono_mb_emit_stloc (mb, dst_var);
1185 /* Emit marshalling loop */
1186 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1187 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1188 mono_mb_emit_stloc (mb, index_var);
1191 label2 = mono_mb_get_label (mb);
1192 mono_mb_emit_ldloc (mb, index_var);
1193 mono_mb_emit_ldloc (mb, array_var);
1194 mono_mb_emit_byte (mb, CEE_LDLEN);
1195 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1197 /* src is already set */
1200 mono_mb_emit_ldloc (mb, array_var);
1201 mono_mb_emit_ldloc (mb, index_var);
1202 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1203 mono_mb_emit_stloc (mb, 1);
1205 /* Do the conversion */
1206 emit_struct_conv (mb, eklass, TRUE);
1209 mono_mb_emit_add_to_local (mb, index_var, 1);
1211 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1213 mono_mb_patch_branch (mb, label3);
1215 /* restore the old src pointer */
1216 mono_mb_emit_ldloc (mb, src_var);
1217 mono_mb_emit_stloc (mb, 0);
1218 /* restore the old dst pointer */
1219 mono_mb_emit_ldloc (mb, dst_var);
1220 mono_mb_emit_stloc (mb, 1);
1224 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1225 MonoClass *eclass = mono_defaults.char_class;
1227 /* create a new array */
1228 mono_mb_emit_ldloc (mb, 1);
1229 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1230 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1231 mono_mb_emit_byte (mb, CEE_STIND_REF);
1233 mono_mb_emit_ldloc (mb, 1);
1234 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1235 mono_mb_emit_ldloc (mb, 0);
1236 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1237 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1238 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1241 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1242 mono_mb_emit_ldloc (mb, 1);
1243 mono_mb_emit_ldloc (mb, 0);
1244 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1245 mono_mb_emit_byte (mb, CEE_STIND_REF);
1247 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1248 mono_mb_emit_ldloc (mb, 1);
1249 mono_mb_emit_ldloc (mb, 0);
1250 mono_mb_emit_icall (mb, mono_string_from_utf16);
1251 mono_mb_emit_byte (mb, CEE_STIND_REF);
1253 case MONO_MARSHAL_CONV_STR_LPTSTR:
1254 mono_mb_emit_ldloc (mb, 1);
1255 mono_mb_emit_ldloc (mb, 0);
1256 mono_mb_emit_byte (mb, CEE_LDIND_I);
1257 #ifdef PLATFORM_WIN32
1258 mono_mb_emit_icall (mb, mono_string_from_utf16);
1260 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1262 mono_mb_emit_byte (mb, CEE_STIND_REF);
1264 case MONO_MARSHAL_CONV_STR_LPSTR:
1265 mono_mb_emit_ldloc (mb, 1);
1266 mono_mb_emit_ldloc (mb, 0);
1267 mono_mb_emit_byte (mb, CEE_LDIND_I);
1268 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1269 mono_mb_emit_byte (mb, CEE_STIND_REF);
1271 case MONO_MARSHAL_CONV_STR_LPWSTR:
1272 mono_mb_emit_ldloc (mb, 1);
1273 mono_mb_emit_ldloc (mb, 0);
1274 mono_mb_emit_byte (mb, CEE_LDIND_I);
1275 mono_mb_emit_icall (mb, mono_string_from_utf16);
1276 mono_mb_emit_byte (mb, CEE_STIND_REF);
1278 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1279 MonoClass *klass = mono_class_from_mono_type (type);
1280 int src_var, dst_var;
1282 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1283 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1285 /* *dst = new object */
1286 mono_mb_emit_ldloc (mb, 1);
1287 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1288 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1289 mono_mb_emit_byte (mb, CEE_STIND_REF);
1291 /* save the old src pointer */
1292 mono_mb_emit_ldloc (mb, 0);
1293 mono_mb_emit_stloc (mb, src_var);
1294 /* save the old dst pointer */
1295 mono_mb_emit_ldloc (mb, 1);
1296 mono_mb_emit_stloc (mb, dst_var);
1298 /* dst = pointer to newly created object data */
1299 mono_mb_emit_ldloc (mb, 1);
1300 mono_mb_emit_byte (mb, CEE_LDIND_I);
1301 mono_mb_emit_icon (mb, sizeof (MonoObject));
1302 mono_mb_emit_byte (mb, CEE_ADD);
1303 mono_mb_emit_stloc (mb, 1);
1305 emit_struct_conv (mb, klass, TRUE);
1307 /* restore the old src pointer */
1308 mono_mb_emit_ldloc (mb, src_var);
1309 mono_mb_emit_stloc (mb, 0);
1310 /* restore the old dst pointer */
1311 mono_mb_emit_ldloc (mb, dst_var);
1312 mono_mb_emit_stloc (mb, 1);
1315 case MONO_MARSHAL_CONV_DEL_FTN: {
1316 MonoClass *klass = mono_class_from_mono_type (type);
1318 mono_mb_emit_ldloc (mb, 1);
1319 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1320 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1321 mono_mb_emit_ldloc (mb, 0);
1322 mono_mb_emit_byte (mb, CEE_LDIND_I);
1323 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1324 mono_mb_emit_byte (mb, CEE_STIND_REF);
1327 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1328 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1332 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1333 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1334 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1335 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1337 #endif /* DISABLE_COM */
1339 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1341 * Passing SafeHandles as ref does not allow the unmanaged code
1342 * to change the SafeHandle value. If the value is changed,
1343 * we should issue a diagnostic exception (NotSupportedException)
1344 * that informs the user that changes to handles in unmanaged code
1347 * Since we currently have no access to the original
1348 * SafeHandle that was used during the marshalling,
1349 * for now we just ignore this, and ignore/discard any
1350 * changes that might have happened to the handle.
1355 case MONO_MARSHAL_CONV_HANDLEREF: {
1357 * Passing HandleRefs in a struct that is ref()ed does not
1358 * copy the values back to the HandleRef
1363 case MONO_MARSHAL_CONV_STR_BSTR:
1364 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1365 case MONO_MARSHAL_CONV_STR_TBSTR:
1366 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1368 g_warning ("marshaling conversion %d not implemented", conv);
1369 g_assert_not_reached ();
1374 conv_to_icall (MonoMarshalConv conv)
1377 case MONO_MARSHAL_CONV_STR_LPWSTR:
1378 return mono_marshal_string_to_utf16;
1379 case MONO_MARSHAL_CONV_LPWSTR_STR:
1380 return mono_string_from_utf16;
1381 case MONO_MARSHAL_CONV_LPSTR_STR:
1382 return mono_string_new_wrapper;
1383 case MONO_MARSHAL_CONV_STR_LPTSTR:
1384 #ifdef PLATFORM_WIN32
1385 return mono_marshal_string_to_utf16;
1387 return mono_string_to_lpstr;
1389 case MONO_MARSHAL_CONV_STR_LPSTR:
1390 return mono_string_to_lpstr;
1391 case MONO_MARSHAL_CONV_STR_BSTR:
1392 return mono_string_to_bstr;
1393 case MONO_MARSHAL_CONV_BSTR_STR:
1394 return mono_string_from_bstr;
1395 case MONO_MARSHAL_CONV_STR_TBSTR:
1396 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1397 return mono_string_to_ansibstr;
1398 case MONO_MARSHAL_CONV_SB_LPSTR:
1399 return mono_string_builder_to_utf8;
1400 case MONO_MARSHAL_CONV_SB_LPTSTR:
1401 #ifdef PLATFORM_WIN32
1402 return mono_string_builder_to_utf16;
1404 return mono_string_builder_to_utf8;
1406 case MONO_MARSHAL_CONV_SB_LPWSTR:
1407 return mono_string_builder_to_utf16;
1408 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1409 return mono_array_to_savearray;
1410 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1411 return mono_array_to_lparray;
1412 case MONO_MARSHAL_FREE_LPARRAY:
1413 return mono_free_lparray;
1414 case MONO_MARSHAL_CONV_DEL_FTN:
1415 return mono_delegate_to_ftnptr;
1416 case MONO_MARSHAL_CONV_FTN_DEL:
1417 return mono_ftnptr_to_delegate;
1418 case MONO_MARSHAL_CONV_LPSTR_SB:
1419 return mono_string_utf8_to_builder;
1420 case MONO_MARSHAL_CONV_LPTSTR_SB:
1421 #ifdef PLATFORM_WIN32
1422 return mono_string_utf16_to_builder;
1424 return mono_string_utf8_to_builder;
1426 case MONO_MARSHAL_CONV_LPWSTR_SB:
1427 return mono_string_utf16_to_builder;
1428 case MONO_MARSHAL_FREE_ARRAY:
1429 return mono_marshal_free_array;
1430 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1431 return mono_string_to_byvalstr;
1432 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1433 return mono_string_to_byvalwstr;
1435 g_assert_not_reached ();
1442 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1447 case MONO_MARSHAL_CONV_BOOL_I4:
1448 mono_mb_emit_ldloc (mb, 1);
1449 mono_mb_emit_ldloc (mb, 0);
1450 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1451 mono_mb_emit_byte (mb, CEE_STIND_I4);
1453 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1454 mono_mb_emit_ldloc (mb, 1);
1455 mono_mb_emit_ldloc (mb, 0);
1456 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1457 mono_mb_emit_byte (mb, CEE_NEG);
1458 mono_mb_emit_byte (mb, CEE_STIND_I2);
1460 case MONO_MARSHAL_CONV_STR_LPWSTR:
1461 case MONO_MARSHAL_CONV_STR_LPSTR:
1462 case MONO_MARSHAL_CONV_STR_LPTSTR:
1463 case MONO_MARSHAL_CONV_STR_BSTR:
1464 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1465 case MONO_MARSHAL_CONV_STR_TBSTR: {
1468 /* free space if free == true */
1469 mono_mb_emit_ldloc (mb, 2);
1470 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1471 mono_mb_emit_ldloc (mb, 1);
1472 mono_mb_emit_byte (mb, CEE_LDIND_I);
1473 mono_mb_emit_icall (mb, g_free);
1474 mono_mb_patch_short_branch (mb, pos);
1476 mono_mb_emit_ldloc (mb, 1);
1477 mono_mb_emit_ldloc (mb, 0);
1478 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1479 mono_mb_emit_icall (mb, conv_to_icall (conv));
1480 mono_mb_emit_byte (mb, CEE_STIND_I);
1483 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1484 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1485 case MONO_MARSHAL_CONV_DEL_FTN:
1486 mono_mb_emit_ldloc (mb, 1);
1487 mono_mb_emit_ldloc (mb, 0);
1488 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1489 mono_mb_emit_icall (mb, conv_to_icall (conv));
1490 mono_mb_emit_byte (mb, CEE_STIND_I);
1492 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1493 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1496 mono_mb_emit_ldloc (mb, 1); /* dst */
1497 mono_mb_emit_ldloc (mb, 0);
1498 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1499 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1500 mono_mb_emit_icall (mb, conv_to_icall (conv));
1503 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1504 MonoClass *eklass = NULL;
1507 if (type->type == MONO_TYPE_SZARRAY) {
1508 eklass = type->data.klass;
1510 g_assert_not_reached ();
1513 if (eklass->valuetype)
1514 esize = mono_class_native_size (eklass, NULL);
1516 esize = sizeof (gpointer);
1518 mono_mb_emit_ldloc (mb, 0);
1519 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1520 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1522 if (eklass->blittable) {
1523 mono_mb_emit_ldloc (mb, 1);
1524 mono_mb_emit_ldloc (mb, 0);
1525 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1526 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1527 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1528 mono_mb_emit_byte (mb, CEE_PREFIX1);
1529 mono_mb_emit_byte (mb, CEE_CPBLK);
1531 int array_var, src_var, dst_var, index_var;
1532 guint32 label2, label3;
1534 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1535 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1536 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1539 mono_mb_emit_ldloc (mb, 0);
1540 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1541 mono_mb_emit_stloc (mb, array_var);
1543 /* save the old src pointer */
1544 mono_mb_emit_ldloc (mb, 0);
1545 mono_mb_emit_stloc (mb, src_var);
1546 /* save the old dst pointer */
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_stloc (mb, dst_var);
1550 /* Emit marshalling loop */
1551 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1552 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1553 mono_mb_emit_stloc (mb, index_var);
1556 label2 = mono_mb_get_label (mb);
1557 mono_mb_emit_ldloc (mb, index_var);
1558 mono_mb_emit_ldloc (mb, array_var);
1559 mono_mb_emit_byte (mb, CEE_LDLEN);
1560 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1563 mono_mb_emit_ldloc (mb, array_var);
1564 mono_mb_emit_ldloc (mb, index_var);
1565 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1566 mono_mb_emit_stloc (mb, 0);
1568 /* dst is already set */
1570 /* Do the conversion */
1571 emit_struct_conv (mb, eklass, FALSE);
1574 mono_mb_emit_add_to_local (mb, index_var, 1);
1576 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1578 mono_mb_patch_branch (mb, label3);
1580 /* restore the old src pointer */
1581 mono_mb_emit_ldloc (mb, src_var);
1582 mono_mb_emit_stloc (mb, 0);
1583 /* restore the old dst pointer */
1584 mono_mb_emit_ldloc (mb, dst_var);
1585 mono_mb_emit_stloc (mb, 1);
1588 mono_mb_patch_branch (mb, pos);
1591 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1592 mono_mb_emit_ldloc (mb, 0);
1593 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1594 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1596 mono_mb_emit_ldloc (mb, 1);
1597 mono_mb_emit_ldloc (mb, 0);
1598 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1599 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1600 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1601 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1602 mono_mb_patch_short_branch (mb, pos);
1605 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1606 int src_var, dst_var;
1608 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1609 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1611 mono_mb_emit_ldloc (mb, 0);
1612 mono_mb_emit_byte (mb, CEE_LDIND_I);
1613 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1615 /* save the old src pointer */
1616 mono_mb_emit_ldloc (mb, 0);
1617 mono_mb_emit_stloc (mb, src_var);
1618 /* save the old dst pointer */
1619 mono_mb_emit_ldloc (mb, 1);
1620 mono_mb_emit_stloc (mb, dst_var);
1622 /* src = pointer to object data */
1623 mono_mb_emit_ldloc (mb, 0);
1624 mono_mb_emit_byte (mb, CEE_LDIND_I);
1625 mono_mb_emit_icon (mb, sizeof (MonoObject));
1626 mono_mb_emit_byte (mb, CEE_ADD);
1627 mono_mb_emit_stloc (mb, 0);
1629 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1631 /* restore the old src pointer */
1632 mono_mb_emit_ldloc (mb, src_var);
1633 mono_mb_emit_stloc (mb, 0);
1634 /* restore the old dst pointer */
1635 mono_mb_emit_ldloc (mb, dst_var);
1636 mono_mb_emit_stloc (mb, 1);
1638 mono_mb_patch_branch (mb, pos);
1643 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1644 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1645 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1646 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1648 #endif /* DISABLE_COM */
1650 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1651 int dar_release_slot, pos;
1653 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1656 * The following is ifdefed-out, because I have no way of doing the
1657 * DangerousRelease when destroying the structure
1660 /* set release = false */
1661 mono_mb_emit_icon (mb, 0);
1662 mono_mb_emit_stloc (mb, dar_release_slot);
1663 if (!sh_dangerous_add_ref)
1664 init_safe_handle ();
1666 /* safehandle.DangerousAddRef (ref release) */
1667 mono_mb_emit_ldloc (mb, 0); /* the source */
1668 mono_mb_emit_byte (mb, CEE_LDIND_I);
1669 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1670 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1672 mono_mb_emit_ldloc (mb, 0);
1673 mono_mb_emit_byte (mb, CEE_LDIND_I);
1674 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1675 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1676 mono_mb_patch_branch (mb, pos);
1678 /* Pull the handle field from SafeHandle */
1679 mono_mb_emit_ldloc (mb, 1);
1680 mono_mb_emit_ldloc (mb, 0);
1681 mono_mb_emit_byte (mb, CEE_LDIND_I);
1682 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1683 mono_mb_emit_byte (mb, CEE_LDIND_I);
1684 mono_mb_emit_byte (mb, CEE_STIND_I);
1688 case MONO_MARSHAL_CONV_HANDLEREF: {
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1692 mono_mb_emit_byte (mb, CEE_ADD);
1693 mono_mb_emit_byte (mb, CEE_LDIND_I);
1694 mono_mb_emit_byte (mb, CEE_STIND_I);
1699 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1700 MonoException *exc = mono_get_exception_not_implemented (msg);
1701 g_warning ("%s", msg);
1703 mono_raise_exception (exc);
1709 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1711 MonoMarshalType *info;
1715 emit_struct_conv(mb, klass->parent, to_object);
1717 info = mono_marshal_load_type_info (klass);
1719 if (info->native_size == 0)
1722 if (klass->blittable) {
1723 int msize = mono_class_value_size (klass, NULL);
1724 g_assert (msize == info->native_size);
1725 mono_mb_emit_ldloc (mb, 1);
1726 mono_mb_emit_ldloc (mb, 0);
1727 mono_mb_emit_icon (mb, msize);
1728 mono_mb_emit_byte (mb, CEE_PREFIX1);
1729 mono_mb_emit_byte (mb, CEE_CPBLK);
1731 mono_mb_emit_add_to_local (mb, 0, msize);
1732 mono_mb_emit_add_to_local (mb, 1, msize);
1736 for (i = 0; i < info->num_fields; i++) {
1737 MonoMarshalNative ntype;
1738 MonoMarshalConv conv;
1739 MonoType *ftype = info->fields [i].field->type;
1742 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1744 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1747 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1750 msize = klass->instance_size - info->fields [i].field->offset;
1751 usize = info->native_size - info->fields [i].offset;
1753 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1754 usize = info->fields [i + 1].offset - info->fields [i].offset;
1757 if (klass != mono_defaults.safehandle_class){
1759 * FIXME: Should really check for usize==0 and msize>0, but we apply
1760 * the layout to the managed structure as well.
1763 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1764 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1765 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1766 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1767 "reference field at the same offset as another field.",
1768 mono_type_full_name (&klass->byval_arg));
1771 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1772 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
1773 mono_type_full_name (&klass->byval_arg));
1778 case MONO_MARSHAL_CONV_NONE: {
1781 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1782 ftype->type == MONO_TYPE_U) {
1783 mono_mb_emit_ldloc (mb, 1);
1784 mono_mb_emit_ldloc (mb, 0);
1785 mono_mb_emit_byte (mb, CEE_LDIND_I);
1786 mono_mb_emit_byte (mb, CEE_STIND_I);
1797 case MONO_TYPE_BOOLEAN:
1800 case MONO_TYPE_CHAR:
1806 mono_mb_emit_ldloc (mb, 1);
1807 mono_mb_emit_ldloc (mb, 0);
1808 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1809 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1811 case MONO_TYPE_VALUETYPE: {
1812 int src_var, dst_var;
1814 if (ftype->data.klass->enumtype) {
1815 ftype = mono_class_enum_basetype (ftype->data.klass);
1819 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1820 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1822 /* save the old src pointer */
1823 mono_mb_emit_ldloc (mb, 0);
1824 mono_mb_emit_stloc (mb, src_var);
1825 /* save the old dst pointer */
1826 mono_mb_emit_ldloc (mb, 1);
1827 mono_mb_emit_stloc (mb, dst_var);
1829 emit_struct_conv (mb, ftype->data.klass, to_object);
1831 /* restore the old src pointer */
1832 mono_mb_emit_ldloc (mb, src_var);
1833 mono_mb_emit_stloc (mb, 0);
1834 /* restore the old dst pointer */
1835 mono_mb_emit_ldloc (mb, dst_var);
1836 mono_mb_emit_stloc (mb, 1);
1839 case MONO_TYPE_OBJECT: {
1840 mono_init_com_types ();
1842 static MonoMethod *variant_clear = NULL;
1843 static MonoMethod *get_object_for_native_variant = NULL;
1846 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1847 if (!get_object_for_native_variant)
1848 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1849 mono_mb_emit_ldloc (mb, 1);
1850 mono_mb_emit_ldloc (mb, 0);
1851 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1852 mono_mb_emit_byte (mb, CEE_STIND_REF);
1854 mono_mb_emit_ldloc (mb, 0);
1855 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1858 static MonoMethod *get_native_variant_for_object = NULL;
1860 if (!get_native_variant_for_object)
1861 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1863 mono_mb_emit_ldloc (mb, 0);
1864 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1865 mono_mb_emit_ldloc (mb, 1);
1866 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1872 g_warning ("marshaling type %02x not implemented", ftype->type);
1873 g_assert_not_reached ();
1878 int src_var, dst_var;
1880 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1881 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1883 /* save the old src pointer */
1884 mono_mb_emit_ldloc (mb, 0);
1885 mono_mb_emit_stloc (mb, src_var);
1886 /* save the old dst pointer */
1887 mono_mb_emit_ldloc (mb, 1);
1888 mono_mb_emit_stloc (mb, dst_var);
1891 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1893 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1895 /* restore the old src pointer */
1896 mono_mb_emit_ldloc (mb, src_var);
1897 mono_mb_emit_stloc (mb, 0);
1898 /* restore the old dst pointer */
1899 mono_mb_emit_ldloc (mb, dst_var);
1900 mono_mb_emit_stloc (mb, 1);
1905 mono_mb_emit_add_to_local (mb, 0, usize);
1906 mono_mb_emit_add_to_local (mb, 1, msize);
1908 mono_mb_emit_add_to_local (mb, 0, msize);
1909 mono_mb_emit_add_to_local (mb, 1, usize);
1915 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1917 /* Call DestroyStructure */
1918 /* FIXME: Only do this if needed */
1919 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1920 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1921 mono_mb_emit_ldloc (mb, struct_var);
1922 mono_mb_emit_icall (mb, mono_struct_delete_old);
1926 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1930 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1931 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1932 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1934 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1935 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1937 mono_mb_emit_icall (mb, checkpoint_func);
1939 mono_mb_patch_branch (mb, pos_noabort);
1943 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1945 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1948 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1952 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1954 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1958 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1960 emit_thread_interrupt_checkpoint (mb);
1963 static MonoAsyncResult *
1964 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1966 MonoMethodMessage *msg;
1967 MonoDelegate *async_callback;
1971 MonoMethod *method = NULL, *method2 = NULL;
1973 g_assert (delegate);
1975 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1977 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1978 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1980 /* If the target is a proxy, make a direct call. Is proxy's work
1981 // to make the call asynchronous.
1983 MonoAsyncResult *ares;
1985 MonoArray *out_args;
1987 method = delegate->method;
1989 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1990 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1991 g_assert(handle != NULL);
1992 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
1993 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
1994 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
1995 MONO_OBJECT_SETREF (msg, async_result, ares);
1996 msg->call_type = CallType_BeginInvoke;
1999 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2001 mono_raise_exception ((MonoException *) exc);
2006 klass = delegate->object.vtable->klass;
2008 method = mono_get_delegate_invoke (klass);
2009 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2012 g_assert (method != NULL);
2014 im = mono_get_delegate_invoke (method->klass);
2015 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2017 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2021 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2023 int i, params_var, tmp_var;
2025 /* allocate local (pointer) *params[] */
2026 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2027 /* allocate local (pointer) tmp */
2028 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2030 /* alloate space on stack to store an array of pointers to the arguments */
2031 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2032 mono_mb_emit_byte (mb, CEE_PREFIX1);
2033 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2034 mono_mb_emit_stloc (mb, params_var);
2037 mono_mb_emit_ldloc (mb, params_var);
2038 mono_mb_emit_stloc (mb, tmp_var);
2040 if (save_this && sig->hasthis) {
2041 mono_mb_emit_ldloc (mb, tmp_var);
2042 mono_mb_emit_ldarg_addr (mb, 0);
2043 mono_mb_emit_byte (mb, CEE_STIND_I);
2044 /* tmp = tmp + sizeof (gpointer) */
2045 if (sig->param_count)
2046 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2050 for (i = 0; i < sig->param_count; i++) {
2051 mono_mb_emit_ldloc (mb, tmp_var);
2052 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2053 mono_mb_emit_byte (mb, CEE_STIND_I);
2054 /* tmp = tmp + sizeof (gpointer) */
2055 if (i < (sig->param_count - 1))
2056 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2063 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2067 GString *res = g_string_new ("");
2070 g_string_append (res, prefix);
2071 g_string_append_c (res, '_');
2074 mono_type_get_desc (res, sig->ret, FALSE);
2077 g_string_append (res, "__this__");
2079 for (i = 0; i < sig->param_count; ++i) {
2080 g_string_append_c (res, '_');
2081 mono_type_get_desc (res, sig->params [i], FALSE);
2084 g_string_free (res, FALSE);
2089 * mono_marshal_get_string_encoding:
2091 * Return the string encoding which should be used for a given parameter.
2093 static MonoMarshalNative
2094 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2096 /* First try the parameter marshal info */
2098 if (spec->native == MONO_NATIVE_LPARRAY) {
2099 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2100 return spec->data.array_data.elem_type;
2103 return spec->native;
2107 return MONO_NATIVE_LPSTR;
2109 /* Then try the method level marshal info */
2110 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2111 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2112 return MONO_NATIVE_LPSTR;
2113 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2114 return MONO_NATIVE_LPWSTR;
2115 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2116 #ifdef PLATFORM_WIN32
2117 return MONO_NATIVE_LPWSTR;
2119 return MONO_NATIVE_LPSTR;
2122 return MONO_NATIVE_LPSTR;
2126 static MonoMarshalConv
2127 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2129 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2132 case MONO_NATIVE_LPWSTR:
2133 return MONO_MARSHAL_CONV_STR_LPWSTR;
2134 case MONO_NATIVE_LPSTR:
2135 return MONO_MARSHAL_CONV_STR_LPSTR;
2136 case MONO_NATIVE_LPTSTR:
2137 return MONO_MARSHAL_CONV_STR_LPTSTR;
2138 case MONO_NATIVE_BSTR:
2139 return MONO_MARSHAL_CONV_STR_BSTR;
2145 static MonoMarshalConv
2146 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2148 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2151 case MONO_NATIVE_LPWSTR:
2152 return MONO_MARSHAL_CONV_SB_LPWSTR;
2154 case MONO_NATIVE_LPSTR:
2155 return MONO_MARSHAL_CONV_SB_LPSTR;
2157 case MONO_NATIVE_LPTSTR:
2158 return MONO_MARSHAL_CONV_SB_LPTSTR;
2165 static MonoMarshalConv
2166 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2168 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2173 case MONO_NATIVE_LPWSTR:
2175 return MONO_MARSHAL_CONV_LPWSTR_STR;
2176 case MONO_NATIVE_LPSTR:
2177 return MONO_MARSHAL_CONV_LPSTR_STR;
2178 case MONO_NATIVE_LPTSTR:
2179 return MONO_MARSHAL_CONV_LPTSTR_STR;
2180 case MONO_NATIVE_BSTR:
2181 return MONO_MARSHAL_CONV_BSTR_STR;
2187 static MonoMarshalConv
2188 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2190 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2195 case MONO_NATIVE_LPWSTR:
2197 * mono_string_builder_to_utf16 does not allocate a
2198 * new buffer, so no need to free it.
2201 return MONO_MARSHAL_CONV_LPWSTR_SB;
2202 case MONO_NATIVE_LPSTR:
2203 return MONO_MARSHAL_CONV_LPSTR_SB;
2205 case MONO_NATIVE_LPTSTR:
2206 return MONO_MARSHAL_CONV_LPTSTR_SB;
2214 * Return whenever a field of a native structure or an array member needs to
2218 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2220 MonoMarshalNative encoding;
2221 MonoMarshalConv conv;
2224 case MONO_TYPE_VALUETYPE:
2225 /* FIXME: Optimize this */
2227 case MONO_TYPE_OBJECT:
2228 case MONO_TYPE_CLASS:
2229 if (t->data.klass == mono_defaults.stringbuilder_class) {
2231 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2235 case MONO_TYPE_STRING:
2236 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2237 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2244 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2247 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2250 mono_marshal_lock ();
2253 g_hash_table_new (hash_func, equal_func);
2254 mono_memory_barrier ();
2257 mono_marshal_unlock ();
2263 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2265 return get_cache (var, hash_func, equal_func);
2269 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2273 mono_marshal_lock ();
2274 res = g_hash_table_lookup (cache, key);
2275 mono_marshal_unlock ();
2280 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2284 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2287 datav = ((MonoMethodWrapper *)method)->method_data;
2291 /* Create the method from the builder and place it in the cache */
2293 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2294 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2299 mono_marshal_lock ();
2300 res = g_hash_table_lookup (cache, key);
2301 mono_marshal_unlock ();
2304 newm = mono_mb_create_method (mb, sig, max_stack);
2305 mono_marshal_lock ();
2306 res = g_hash_table_lookup (cache, key);
2309 g_hash_table_insert (cache, key, res);
2310 mono_marshal_method_set_wrapper_data (res, key);
2311 mono_marshal_unlock ();
2313 mono_marshal_unlock ();
2314 mono_free_method (newm);
2322 static inline MonoMethod*
2323 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2325 MonoMethod *res = NULL;
2326 MonoRemotingMethods *wrps;
2328 mono_marshal_lock ();
2329 if (method->klass->image->remoting_invoke_cache)
2330 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2335 switch (wrapper_type) {
2336 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2337 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2338 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2339 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2343 /* it is important to do the unlock after the load from wrps, since in
2344 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2345 * to take the loader lock and some other thread may set the fields.
2347 mono_marshal_unlock ();
2351 /* Create the method from the builder and place it in the cache */
2352 static inline MonoMethod*
2353 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2354 MonoMethodSignature *sig, int max_stack)
2356 MonoMethod **res = NULL;
2357 MonoRemotingMethods *wrps;
2358 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2360 mono_marshal_lock ();
2361 wrps = g_hash_table_lookup (cache, key);
2363 wrps = g_new0 (MonoRemotingMethods, 1);
2364 g_hash_table_insert (cache, key, wrps);
2367 switch (mb->method->wrapper_type) {
2368 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2369 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2370 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2371 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2372 default: g_assert_not_reached (); break;
2374 mono_marshal_unlock ();
2378 newm = mono_mb_create_method (mb, sig, max_stack);
2380 mono_marshal_lock ();
2383 mono_marshal_method_set_wrapper_data (*res, key);
2384 mono_marshal_unlock ();
2386 mono_marshal_unlock ();
2387 mono_free_method (newm);
2395 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2399 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2402 res = mono_method_get_wrapper_data (wrapper, 1);
2409 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2411 MonoMethodSignature *sig;
2412 MonoMethodBuilder *mb;
2418 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2419 !strcmp (method->name, "BeginInvoke"));
2421 sig = mono_signature_no_pinvoke (method);
2423 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2424 (GHashFunc)mono_signature_hash,
2425 (GCompareFunc)mono_metadata_signature_equal);
2426 if ((res = mono_marshal_find_in_cache (cache, sig)))
2429 g_assert (sig->hasthis);
2431 name = mono_signature_to_name (sig, "begin_invoke");
2432 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2435 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2437 mono_mb_emit_ldarg (mb, 0);
2438 mono_mb_emit_ldloc (mb, params_var);
2439 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2440 mono_mb_emit_byte (mb, CEE_RET);
2442 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2448 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2450 MonoDomain *domain = mono_domain_get ();
2451 MonoAsyncResult *ares;
2452 MonoMethod *method = NULL;
2453 MonoMethodSignature *sig;
2454 MonoMethodMessage *msg;
2455 MonoObject *res, *exc;
2456 MonoArray *out_args;
2459 g_assert (delegate);
2461 if (!delegate->method_info) {
2462 g_assert (delegate->method);
2463 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2466 if (!delegate->method_info || !delegate->method_info->method)
2467 g_assert_not_reached ();
2469 klass = delegate->object.vtable->klass;
2471 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2472 g_assert (method != NULL);
2474 sig = mono_signature_no_pinvoke (method);
2476 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2478 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2480 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."));
2484 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
2485 mono_raise_exception (mono_get_exception_invalid_operation (
2486 "The IAsyncResult object provided does not match this delegate."));
2490 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2491 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2492 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2493 mono_message_init (domain, msg, delegate->method_info, NULL);
2494 msg->call_type = CallType_EndInvoke;
2495 MONO_OBJECT_SETREF (msg, async_result, ares);
2496 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2498 res = mono_thread_pool_finish (ares, &out_args, &exc);
2502 if (((MonoException*)exc)->stack_trace) {
2503 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2505 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2507 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2510 mono_raise_exception ((MonoException*)exc);
2513 mono_method_return_message_restore (method, params, out_args);
2518 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2520 MonoType *t = mono_type_get_underlying_type (return_type);
2522 if (return_type->byref)
2523 return_type = &mono_defaults.int_class->byval_arg;
2526 case MONO_TYPE_VOID:
2527 g_assert_not_reached ();
2530 case MONO_TYPE_STRING:
2531 case MONO_TYPE_CLASS:
2532 case MONO_TYPE_OBJECT:
2533 case MONO_TYPE_ARRAY:
2534 case MONO_TYPE_SZARRAY:
2538 case MONO_TYPE_BOOLEAN:
2541 case MONO_TYPE_CHAR:
2551 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2552 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2554 case MONO_TYPE_GENERICINST:
2555 if (!mono_type_generic_inst_is_valuetype (return_type))
2558 case MONO_TYPE_VALUETYPE: {
2559 MonoClass *klass = mono_class_from_mono_type (return_type);
2560 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2561 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2565 g_warning ("type 0x%x not handled", return_type->type);
2566 g_assert_not_reached ();
2569 mono_mb_emit_byte (mb, CEE_RET);
2573 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2575 MonoMethodSignature *sig;
2576 MonoMethodBuilder *mb;
2582 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2583 !strcmp (method->name, "EndInvoke"));
2585 sig = mono_signature_no_pinvoke (method);
2587 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2588 (GHashFunc)mono_signature_hash,
2589 (GCompareFunc)mono_metadata_signature_equal);
2590 if ((res = mono_marshal_find_in_cache (cache, sig)))
2593 g_assert (sig->hasthis);
2595 name = mono_signature_to_name (sig, "end_invoke");
2596 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2599 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2601 mono_mb_emit_ldarg (mb, 0);
2602 mono_mb_emit_ldloc (mb, params_var);
2603 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2605 if (sig->ret->type == MONO_TYPE_VOID) {
2606 mono_mb_emit_byte (mb, CEE_POP);
2607 mono_mb_emit_byte (mb, CEE_RET);
2609 mono_mb_emit_restore_result (mb, sig->ret);
2611 res = mono_mb_create_and_cache (cache, sig,
2612 mb, sig, sig->param_count + 16);
2619 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2621 MonoMethodMessage *msg;
2622 MonoTransparentProxy *this;
2623 MonoObject *res, *exc;
2624 MonoArray *out_args;
2626 this = *((MonoTransparentProxy **)params [0]);
2629 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2631 /* skip the this pointer */
2634 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2637 MonoMethodSignature *sig = mono_method_signature (method);
2638 int count = sig->param_count;
2639 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2641 for (i=0; i<count; i++) {
2642 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2643 if (class->valuetype) {
2644 if (sig->params [i]->byref) {
2645 mparams[i] = *((gpointer *)params [i]);
2647 /* runtime_invoke expects a boxed instance */
2648 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2649 mparams[i] = mono_nullable_box (params [i], class);
2651 mparams[i] = params [i];
2654 mparams[i] = *((gpointer**)params [i]);
2658 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2661 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2663 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2666 mono_raise_exception ((MonoException *)exc);
2668 mono_method_return_message_restore (method, params, out_args);
2674 mono_marshal_get_remoting_invoke (MonoMethod *method)
2676 MonoMethodSignature *sig;
2677 MonoMethodBuilder *mb;
2683 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2686 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2687 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2688 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2689 g_assert (vtable); /*FIXME do proper error handling*/
2691 if (!vtable->remote) {
2693 return mono_cominterop_get_invoke (method);
2695 g_assert_not_reached ();
2700 sig = mono_signature_no_pinvoke (method);
2702 /* we cant remote methods without this pointer */
2706 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2709 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2710 mb->method->save_lmf = 1;
2712 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2714 mono_mb_emit_ptr (mb, method);
2715 mono_mb_emit_ldloc (mb, params_var);
2716 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2717 emit_thread_interrupt_checkpoint (mb);
2719 if (sig->ret->type == MONO_TYPE_VOID) {
2720 mono_mb_emit_byte (mb, CEE_POP);
2721 mono_mb_emit_byte (mb, CEE_RET);
2723 mono_mb_emit_restore_result (mb, sig->ret);
2726 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2732 /* mono_get_xdomain_marshal_type()
2733 * Returns the kind of marshalling that a type needs for cross domain calls.
2735 static MonoXDomainMarshalType
2736 mono_get_xdomain_marshal_type (MonoType *t)
2739 case MONO_TYPE_VOID:
2740 g_assert_not_reached ();
2744 case MONO_TYPE_BOOLEAN:
2747 case MONO_TYPE_CHAR:
2754 return MONO_MARSHAL_NONE;
2755 case MONO_TYPE_STRING:
2756 return MONO_MARSHAL_COPY;
2757 case MONO_TYPE_ARRAY:
2758 case MONO_TYPE_SZARRAY: {
2759 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2760 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2761 return MONO_MARSHAL_COPY;
2766 return MONO_MARSHAL_SERIALIZE;
2770 /* mono_marshal_xdomain_copy_value
2771 * Makes a copy of "val" suitable for the current domain.
2774 mono_marshal_xdomain_copy_value (MonoObject *val)
2777 if (val == NULL) return NULL;
2779 domain = mono_domain_get ();
2781 switch (mono_object_class (val)->byval_arg.type) {
2782 case MONO_TYPE_VOID:
2783 g_assert_not_reached ();
2787 case MONO_TYPE_BOOLEAN:
2790 case MONO_TYPE_CHAR:
2796 case MONO_TYPE_R8: {
2797 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2799 case MONO_TYPE_STRING: {
2800 MonoString *str = (MonoString *) val;
2801 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2803 case MONO_TYPE_ARRAY:
2804 case MONO_TYPE_SZARRAY: {
2806 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2807 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2808 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2809 if (mt == MONO_MARSHAL_COPY) {
2810 int i, len = mono_array_length (acopy);
2811 for (i = 0; i < len; i++) {
2812 MonoObject *item = mono_array_get (acopy, gpointer, i);
2813 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2816 return (MonoObject *) acopy;
2820 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2821 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2822 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2823 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2824 newsb->length = oldsb->length;
2825 newsb->max_capacity = (gint32)0x7fffffff;
2826 return (MonoObject *) newsb;
2831 /* mono_marshal_xdomain_copy_out_value()
2832 * Copies the contents of the src instance into the dst instance. src and dst
2833 * must have the same type, and if they are arrays, the same size.
2836 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2838 if (src == NULL || dst == NULL) return;
2840 g_assert (mono_object_class (src) == mono_object_class (dst));
2842 switch (mono_object_class (src)->byval_arg.type) {
2843 case MONO_TYPE_ARRAY:
2844 case MONO_TYPE_SZARRAY: {
2845 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2846 if (mt == MONO_MARSHAL_SERIALIZE) return;
2847 if (mt == MONO_MARSHAL_COPY) {
2848 int i, len = mono_array_length ((MonoArray *)dst);
2849 for (i = 0; i < len; i++) {
2850 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2851 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2854 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2860 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2861 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2862 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2864 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)));
2865 dst_sb->cached_str = NULL;
2866 dst_sb->length = src_sb->length;
2871 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2873 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2874 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2878 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2880 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2883 /* mono_marshal_supports_fast_xdomain()
2884 * Returns TRUE if the method can use the fast xdomain wrapper.
2887 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2889 return !method->klass->contextbound &&
2890 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2894 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2896 MonoDomain *current_domain = mono_domain_get ();
2897 MonoDomain *domain = mono_domain_get_by_id (id);
2899 if (!domain || !mono_domain_set (domain, FALSE))
2900 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2903 mono_thread_push_appdomain_ref (domain);
2905 mono_thread_pop_appdomain_ref ();
2907 return current_domain->domain_id;
2911 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
2913 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
2916 /* mono_marshal_emit_load_domain_method ()
2917 * Loads into the stack a pointer to the code of the provided method for
2918 * the current domain.
2921 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
2923 /* We need a pointer to the method for the running domain (not the domain
2924 * that compiles the method).
2926 mono_mb_emit_ptr (mb, method);
2927 mono_mb_emit_icall (mb, mono_compile_method);
2930 /* mono_marshal_check_domain_image ()
2931 * Returns TRUE if the image is loaded in the specified
2932 * application domain.
2935 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
2940 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2944 mono_domain_assemblies_lock (domain);
2945 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
2947 if (ass->image == image)
2950 mono_domain_assemblies_unlock (domain);
2955 /* mono_marshal_get_xappdomain_dispatch ()
2956 * Generates a method that dispatches a method call from another domain into
2957 * the current domain.
2960 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
2962 MonoMethodSignature *sig, *csig;
2963 MonoMethodBuilder *mb;
2965 int i, j, param_index, copy_locals_base;
2966 MonoClass *ret_class = NULL;
2967 int loc_array=0, loc_return=0, loc_serialized_exc=0;
2968 MonoExceptionClause *main_clause;
2970 gboolean copy_return;
2972 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
2975 sig = mono_method_signature (method);
2976 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
2979 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
2980 csig->params [j++] = &mono_defaults.object_class->byval_arg;
2981 csig->params [j++] = &byte_array_class->this_arg;
2982 csig->params [j++] = &byte_array_class->this_arg;
2983 for (i = 0; i < sig->param_count; i++) {
2984 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
2985 csig->params [j++] = sig->params [i];
2988 csig->ret = sig->ret;
2990 csig->ret = &mono_defaults.void_class->byval_arg;
2992 csig->hasthis = FALSE;
2994 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
2995 mb->method->save_lmf = 1;
2999 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3000 if (complex_count > 0)
3001 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3002 if (sig->ret->type != MONO_TYPE_VOID) {
3003 loc_return = mono_mb_add_local (mb, sig->ret);
3004 ret_class = mono_class_from_mono_type (sig->ret);
3009 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3010 main_clause->try_offset = mono_mb_get_label (mb);
3012 /* Clean the call context */
3014 mono_mb_emit_byte (mb, CEE_LDNULL);
3015 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3016 mono_mb_emit_byte (mb, CEE_POP);
3018 /* Deserialize call data */
3020 mono_mb_emit_ldarg (mb, 1);
3021 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3022 mono_mb_emit_byte (mb, CEE_DUP);
3023 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3025 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3026 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3028 if (complex_count > 0)
3029 mono_mb_emit_stloc (mb, loc_array);
3031 mono_mb_emit_byte (mb, CEE_POP);
3033 mono_mb_patch_short_branch (mb, pos);
3035 /* Get the target object */
3037 mono_mb_emit_ldarg (mb, 0);
3038 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3040 /* Load the arguments */
3042 copy_locals_base = mb->locals;
3043 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3045 for (i = 0; i < sig->param_count; i++) {
3046 MonoType *pt = sig->params [i];
3047 MonoClass *pclass = mono_class_from_mono_type (pt);
3048 switch (marshal_types [i]) {
3049 case MONO_MARSHAL_SERIALIZE: {
3050 /* take the value from the serialized array */
3051 mono_mb_emit_ldloc (mb, loc_array);
3052 mono_mb_emit_icon (mb, j++);
3054 if (pclass->valuetype) {
3055 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3056 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3058 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3061 if (pclass->valuetype) {
3062 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3063 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3064 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3066 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3067 if (pclass != mono_defaults.object_class) {
3068 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3074 case MONO_MARSHAL_COPY_OUT: {
3075 /* Keep a local copy of the value since we need to copy it back after the call */
3076 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3077 mono_mb_emit_ldarg (mb, param_index++);
3078 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3079 mono_mb_emit_byte (mb, CEE_DUP);
3080 mono_mb_emit_stloc (mb, copy_local);
3083 case MONO_MARSHAL_COPY: {
3084 mono_mb_emit_ldarg (mb, param_index);
3086 mono_mb_emit_byte (mb, CEE_DUP);
3087 mono_mb_emit_byte (mb, CEE_DUP);
3088 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3089 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3090 mono_mb_emit_byte (mb, CEE_STIND_REF);
3092 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3097 case MONO_MARSHAL_NONE:
3098 mono_mb_emit_ldarg (mb, param_index++);
3103 /* Make the call to the real object */
3105 emit_thread_force_interrupt_checkpoint (mb);
3107 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3109 if (sig->ret->type != MONO_TYPE_VOID)
3110 mono_mb_emit_stloc (mb, loc_return);
3112 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3116 for (i = 0; i < sig->param_count; i++) {
3117 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3118 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3119 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3120 mono_mb_emit_ldarg (mb, param_index);
3121 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3126 /* Serialize the return values */
3128 if (complex_out_count > 0) {
3129 /* Reset parameters in the array that don't need to be serialized back */
3131 for (i = 0; i < sig->param_count; i++) {
3132 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3133 if (!sig->params [i]->byref) {
3134 mono_mb_emit_ldloc (mb, loc_array);
3135 mono_mb_emit_icon (mb, j);
3136 mono_mb_emit_byte (mb, CEE_LDNULL);
3137 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3142 /* Add the return value to the array */
3144 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3145 mono_mb_emit_ldloc (mb, loc_array);
3146 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3147 mono_mb_emit_ldloc (mb, loc_return);
3149 g_assert (ret_class); /*FIXME properly fail here*/
3150 if (ret_class->valuetype) {
3151 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3153 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3158 mono_mb_emit_ldarg (mb, 1);
3159 mono_mb_emit_ldloc (mb, loc_array);
3160 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3161 mono_mb_emit_byte (mb, CEE_STIND_REF);
3162 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3163 mono_mb_emit_ldarg (mb, 1);
3164 mono_mb_emit_ldloc (mb, loc_return);
3165 if (ret_class->valuetype) {
3166 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3168 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3169 mono_mb_emit_byte (mb, CEE_STIND_REF);
3171 mono_mb_emit_ldarg (mb, 1);
3172 mono_mb_emit_byte (mb, CEE_LDNULL);
3173 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3174 mono_mb_emit_byte (mb, CEE_STIND_REF);
3177 mono_mb_emit_ldarg (mb, 2);
3178 mono_mb_emit_byte (mb, CEE_LDNULL);
3179 mono_mb_emit_byte (mb, CEE_STIND_REF);
3180 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3182 /* Main exception catch */
3183 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3184 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3185 main_clause->data.catch_class = mono_defaults.object_class;
3188 main_clause->handler_offset = mono_mb_get_label (mb);
3189 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3190 mono_mb_emit_stloc (mb, loc_serialized_exc);
3191 mono_mb_emit_ldarg (mb, 2);
3192 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3193 mono_mb_emit_byte (mb, CEE_STIND_REF);
3194 mono_mb_emit_branch (mb, CEE_LEAVE);
3195 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3198 mono_mb_patch_branch (mb, pos_leave);
3201 mono_mb_emit_ldloc (mb, loc_return);
3203 mono_mb_emit_byte (mb, CEE_RET);
3205 mono_mb_set_clauses (mb, 1, main_clause);
3207 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3213 /* mono_marshal_get_xappdomain_invoke ()
3214 * Generates a fast remoting wrapper for cross app domain calls.
3217 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3219 MonoMethodSignature *sig;
3220 MonoMethodBuilder *mb;
3222 int i, j, complex_count, complex_out_count, copy_locals_base;
3224 MonoClass *ret_class = NULL;
3225 MonoMethod *xdomain_method;
3226 int ret_marshal_type = MONO_MARSHAL_NONE;
3227 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3228 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3229 int pos, pos_dispatch, pos_noex;
3230 gboolean copy_return = FALSE;
3234 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3237 /* we cant remote methods without this pointer */
3238 if (!mono_method_signature (method)->hasthis)
3241 if (!mono_marshal_supports_fast_xdomain (method))
3242 return mono_marshal_get_remoting_invoke (method);
3244 mono_remoting_marshal_init ();
3246 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3249 sig = mono_signature_no_pinvoke (method);
3251 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3252 mb->method->save_lmf = 1;
3254 /* Count the number of parameters that need to be serialized */
3256 marshal_types = alloca (sizeof (int) * sig->param_count);
3257 complex_count = complex_out_count = 0;
3258 for (i = 0; i < sig->param_count; i++) {
3259 MonoType *ptype = sig->params[i];
3260 int mt = mono_get_xdomain_marshal_type (ptype);
3262 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3263 * the copy will be made by reusing the original object instance
3265 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3266 mt = MONO_MARSHAL_COPY_OUT;
3267 else if (mt == MONO_MARSHAL_SERIALIZE) {
3269 if (ptype->byref) complex_out_count++;
3271 marshal_types [i] = mt;
3274 if (sig->ret->type != MONO_TYPE_VOID) {
3275 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3276 ret_class = mono_class_from_mono_type (sig->ret);
3277 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3282 if (complex_count > 0)
3283 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3284 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3285 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3287 loc_return = mono_mb_add_local (mb, sig->ret);
3288 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3289 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3290 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3291 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3293 /* Save thread domain data */
3295 mono_mb_emit_icall (mb, mono_context_get);
3296 mono_mb_emit_byte (mb, CEE_DUP);
3297 mono_mb_emit_stloc (mb, loc_context);
3299 /* If the thread is not running in the default context, it needs to go
3300 * through the whole remoting sink, since the context is going to change
3302 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3303 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3305 /* Another case in which the fast path can't be used: when the target domain
3306 * has a different image for the same assembly.
3309 /* Get the target domain id */
3311 mono_mb_emit_ldarg (mb, 0);
3312 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3313 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3314 mono_mb_emit_byte (mb, CEE_DUP);
3315 mono_mb_emit_stloc (mb, loc_real_proxy);
3317 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3318 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3319 mono_mb_emit_stloc (mb, loc_domainid);
3321 /* Check if the target domain has the same image for the required assembly */
3323 mono_mb_emit_ldloc (mb, loc_domainid);
3324 mono_mb_emit_ptr (mb, method->klass->image);
3325 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3326 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3328 /* Use the whole remoting sink to dispatch this message */
3330 mono_mb_patch_short_branch (mb, pos);
3332 mono_mb_emit_ldarg (mb, 0);
3333 for (i = 0; i < sig->param_count; i++)
3334 mono_mb_emit_ldarg (mb, i + 1);
3336 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3337 mono_mb_emit_byte (mb, CEE_RET);
3338 mono_mb_patch_short_branch (mb, pos_dispatch);
3340 /* Create the array that will hold the parameters to be serialized */
3342 if (complex_count > 0) {
3343 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 */
3344 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3347 for (i = 0; i < sig->param_count; i++) {
3349 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3350 pclass = mono_class_from_mono_type (sig->params[i]);
3351 mono_mb_emit_byte (mb, CEE_DUP);
3352 mono_mb_emit_icon (mb, j);
3353 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3354 if (sig->params[i]->byref) {
3355 if (pclass->valuetype)
3356 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3358 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3360 if (pclass->valuetype)
3361 mono_mb_emit_op (mb, CEE_BOX, pclass);
3362 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3365 mono_mb_emit_stloc (mb, loc_array);
3367 /* Serialize parameters */
3369 mono_mb_emit_ldloc (mb, loc_array);
3370 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3371 mono_mb_emit_stloc (mb, loc_serialized_data);
3373 mono_mb_emit_byte (mb, CEE_LDNULL);
3374 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3375 mono_mb_emit_stloc (mb, loc_serialized_data);
3380 mono_mb_emit_ldloc (mb, loc_domainid);
3381 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3382 mono_marshal_emit_switch_domain (mb);
3383 mono_mb_emit_stloc (mb, loc_old_domainid);
3385 /* Load the arguments */
3387 mono_mb_emit_ldloc (mb, loc_real_proxy);
3388 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3389 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3391 copy_locals_base = mb->locals;
3392 for (i = 0; i < sig->param_count; i++) {
3393 switch (marshal_types [i]) {
3394 case MONO_MARSHAL_SERIALIZE:
3396 case MONO_MARSHAL_COPY: {
3397 mono_mb_emit_ldarg (mb, i+1);
3398 if (sig->params [i]->byref) {
3399 /* make a local copy of the byref parameter. The real parameter
3400 * will be updated after the xdomain call
3402 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3403 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3404 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3405 mono_mb_emit_stloc (mb, copy_local);
3406 mono_mb_emit_ldloc_addr (mb, copy_local);
3410 case MONO_MARSHAL_COPY_OUT:
3411 case MONO_MARSHAL_NONE:
3412 mono_mb_emit_ldarg (mb, i+1);
3417 /* Make the call to the invoke wrapper in the target domain */
3419 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3420 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3421 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3424 mono_mb_emit_stloc (mb, loc_return);
3428 mono_mb_emit_ldloc (mb, loc_old_domainid);
3429 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3430 mono_marshal_emit_switch_domain (mb);
3431 mono_mb_emit_byte (mb, CEE_POP);
3433 /* Restore thread domain data */
3435 mono_mb_emit_ldloc (mb, loc_context);
3436 mono_mb_emit_icall (mb, mono_context_set);
3438 /* if (loc_serialized_exc != null) ... */
3440 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3441 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3443 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3444 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3445 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3446 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3447 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3448 mono_mb_emit_byte (mb, CEE_THROW);
3449 mono_mb_patch_short_branch (mb, pos_noex);
3451 /* copy back non-serialized output parameters */
3454 for (i = 0; i < sig->param_count; i++) {
3455 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3456 mono_mb_emit_ldarg (mb, i + 1);
3457 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3458 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3459 mono_mb_emit_byte (mb, CEE_STIND_REF);
3462 /* Deserialize out parameters */
3464 if (complex_out_count > 0) {
3465 mono_mb_emit_ldloc (mb, loc_serialized_data);
3466 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3467 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3468 mono_mb_emit_stloc (mb, loc_array);
3470 /* Copy back output parameters and return type */
3473 for (i = 0; i < sig->param_count; i++) {
3474 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3475 if (sig->params[i]->byref) {
3476 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3477 mono_mb_emit_ldarg (mb, i + 1);
3478 mono_mb_emit_ldloc (mb, loc_array);
3479 mono_mb_emit_icon (mb, j);
3480 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3481 if (pclass->valuetype) {
3482 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3483 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3484 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3486 if (pclass != mono_defaults.object_class)
3487 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3488 mono_mb_emit_byte (mb, CEE_STIND_REF);
3494 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3495 mono_mb_emit_ldloc (mb, loc_array);
3496 mono_mb_emit_icon (mb, complex_count);
3497 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3498 if (ret_class->valuetype) {
3499 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3500 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3503 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3504 mono_mb_emit_ldloc (mb, loc_serialized_data);
3505 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3506 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3507 if (ret_class->valuetype) {
3508 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3509 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3510 } else if (ret_class != mono_defaults.object_class) {
3511 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3514 mono_mb_emit_ldloc (mb, loc_serialized_data);
3515 mono_mb_emit_byte (mb, CEE_DUP);
3516 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3517 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3519 mono_mb_patch_short_branch (mb, pos);
3520 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3521 mono_mb_emit_byte (mb, CEE_POP);
3525 mono_mb_emit_ldloc (mb, loc_return);
3526 if (ret_marshal_type == MONO_MARSHAL_COPY)
3527 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3530 mono_mb_emit_byte (mb, CEE_RET);
3532 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3539 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3541 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3542 return mono_marshal_get_xappdomain_invoke (method);
3543 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3545 return mono_cominterop_get_invoke (method);
3547 g_assert_not_reached ();
3550 return mono_marshal_get_remoting_invoke (method);
3556 G_GNUC_UNUSED static gpointer
3557 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3559 if (rp->target_domain_id != -1)
3560 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3562 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3566 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3568 MonoMethodSignature *sig;
3569 MonoMethodBuilder *mb;
3570 MonoMethod *res, *native;
3571 int i, pos, pos_rem;
3575 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3578 /* we cant remote methods without this pointer */
3579 g_assert (mono_method_signature (method)->hasthis);
3581 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3584 sig = mono_signature_no_pinvoke (method);
3586 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3588 for (i = 0; i <= sig->param_count; i++)
3589 mono_mb_emit_ldarg (mb, i);
3591 mono_mb_emit_ldarg (mb, 0);
3592 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3594 if (mono_marshal_supports_fast_xdomain (method)) {
3595 mono_mb_emit_ldarg (mb, 0);
3596 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3598 /* wrapper for cross app domain calls */
3599 native = mono_marshal_get_xappdomain_invoke (method);
3600 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3601 mono_mb_emit_byte (mb, CEE_RET);
3603 mono_mb_patch_branch (mb, pos_rem);
3605 /* wrapper for normal remote calls */
3606 native = mono_marshal_get_remoting_invoke (method);
3607 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3608 mono_mb_emit_byte (mb, CEE_RET);
3611 mono_mb_patch_branch (mb, pos);
3612 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3613 mono_mb_emit_byte (mb, CEE_RET);
3615 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3623 MonoMethodSignature *sig;
3625 } SignatureMethodPair;
3628 signature_method_pair_hash (gconstpointer data)
3630 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3632 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3636 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3638 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3642 free_signature_method_pair (SignatureMethodPair *pair)
3648 * the returned method invokes all methods in a multicast delegate.
3651 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3653 MonoMethodSignature *sig, *static_sig;
3655 MonoMethodBuilder *mb;
3656 MonoMethod *res, *newm;
3658 SignatureMethodPair key;
3659 SignatureMethodPair *new_key;
3660 int local_prev, local_target;
3663 MonoMethod *target_method = NULL;
3664 MonoClass *target_class = NULL;
3665 gboolean callvirt = FALSE;
3668 * If the delegate target is null, and the target method is not static, a virtual
3669 * call is made to that method with the first delegate argument as this. This is
3670 * a non-documented .NET feature.
3672 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3674 target_method = del->method;
3675 if (target_method->is_inflated) {
3676 MonoType *target_type;
3678 g_assert (method->signature->hasthis);
3679 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3680 mono_method_get_context (method));
3681 target_class = mono_class_from_mono_type (target_type);
3683 target_class = del->method->klass;
3687 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3688 !strcmp (method->name, "Invoke"));
3690 sig = mono_signature_no_pinvoke (method);
3693 /* We need to cache the signature+method pair */
3694 mono_marshal_lock ();
3695 if (!method->klass->image->delegate_abstract_invoke_cache)
3696 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);
3697 cache = method->klass->image->delegate_abstract_invoke_cache;
3699 key.method = target_method;
3700 res = g_hash_table_lookup (cache, &key);
3701 mono_marshal_unlock ();
3705 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3706 (GHashFunc)mono_signature_hash,
3707 (GCompareFunc)mono_metadata_signature_equal);
3708 if ((res = mono_marshal_find_in_cache (cache, sig)))
3712 static_sig = signature_dup (method->klass->image, sig);
3713 static_sig->hasthis = 0;
3715 name = mono_signature_to_name (sig, "invoke");
3716 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3719 /* allocate local 0 (object) */
3720 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3721 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3723 g_assert (sig->hasthis);
3727 * prev.Invoke( args .. );
3728 * return this.<target>( args .. );
3731 /* this wrapper can be used in unmanaged-managed transitions */
3732 emit_thread_interrupt_checkpoint (mb);
3734 /* get this->prev */
3735 mono_mb_emit_ldarg (mb, 0);
3736 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3737 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3738 mono_mb_emit_stloc (mb, local_prev);
3739 mono_mb_emit_ldloc (mb, local_prev);
3741 /* if prev != null */
3742 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3746 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3747 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3749 mono_mb_emit_ldloc (mb, local_prev);
3750 for (i = 0; i < sig->param_count; i++)
3751 mono_mb_emit_ldarg (mb, i + 1);
3752 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3753 if (sig->ret->type != MONO_TYPE_VOID)
3754 mono_mb_emit_byte (mb, CEE_POP);
3756 /* continued or prev == null */
3757 mono_mb_patch_branch (mb, pos0);
3759 /* get this->target */
3760 mono_mb_emit_ldarg (mb, 0);
3761 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3762 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3763 mono_mb_emit_stloc (mb, local_target);
3765 /* if target != null */
3766 mono_mb_emit_ldloc (mb, local_target);
3767 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3769 /* then call this->method_ptr nonstatic */
3772 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3774 mono_mb_emit_ldloc (mb, local_target);
3775 for (i = 0; i < sig->param_count; ++i)
3776 mono_mb_emit_ldarg (mb, i + 1);
3777 mono_mb_emit_ldarg (mb, 0);
3778 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3779 mono_mb_emit_byte (mb, CEE_LDIND_I );
3780 mono_mb_emit_op (mb, CEE_CALLI, sig);
3782 mono_mb_emit_byte (mb, CEE_RET);
3785 /* else [target == null] call this->method_ptr static */
3786 mono_mb_patch_branch (mb, pos0);
3789 mono_mb_emit_ldarg (mb, 1);
3790 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3791 for (i = 1; i < sig->param_count; ++i)
3792 mono_mb_emit_ldarg (mb, i + 1);
3793 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3795 for (i = 0; i < sig->param_count; ++i)
3796 mono_mb_emit_ldarg (mb, i + 1);
3797 mono_mb_emit_ldarg (mb, 0);
3798 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3799 mono_mb_emit_byte (mb, CEE_LDIND_I );
3800 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3803 mono_mb_emit_byte (mb, CEE_RET);
3806 // From mono_mb_create_and_cache
3807 mb->skip_visibility = 1;
3808 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3809 /*We perform double checked locking, so must fence before publishing*/
3810 mono_memory_barrier ();
3811 mono_marshal_lock ();
3812 res = g_hash_table_lookup (cache, &key);
3815 new_key = g_new0 (SignatureMethodPair, 1);
3817 new_key->method = target_method;
3818 g_hash_table_insert (cache, new_key, res);
3819 mono_marshal_method_set_wrapper_data (res, new_key);
3820 mono_marshal_unlock ();
3822 mono_marshal_unlock ();
3823 mono_free_method (newm);
3826 mb->skip_visibility = 1;
3827 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3835 * signature_dup_add_this:
3837 * Make a copy of @sig, adding an explicit this argument.
3839 static MonoMethodSignature*
3840 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3842 MonoMethodSignature *res;
3845 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3846 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3847 res->param_count = sig->param_count + 1;
3848 res->hasthis = FALSE;
3849 for (i = sig->param_count - 1; i >= 0; i --)
3850 res->params [i + 1] = sig->params [i];
3851 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3857 MonoMethodSignature *ctor_sig;
3858 MonoMethodSignature *sig;
3861 /* protected by the marshal lock, contains CtorSigPair pointers */
3862 static GSList *strsig_list = NULL;
3864 static MonoMethodSignature *
3865 lookup_string_ctor_signature (MonoMethodSignature *sig)
3867 MonoMethodSignature *callsig;
3871 mono_marshal_lock ();
3873 for (item = strsig_list; item; item = item->next) {
3875 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3876 * because it is lock-free.
3878 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3883 mono_marshal_unlock ();
3887 static MonoMethodSignature *
3888 add_string_ctor_signature (MonoMethod *method)
3890 MonoMethodSignature *callsig;
3893 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3894 callsig->ret = &mono_defaults.string_class->byval_arg;
3895 cs = g_new (CtorSigPair, 1);
3897 cs->ctor_sig = mono_method_signature (method);
3899 mono_marshal_lock ();
3900 strsig_list = g_slist_prepend (strsig_list, cs);
3901 mono_marshal_unlock ();
3906 get_runtime_invoke_type (MonoType *t, gboolean ret)
3909 if (t->type == MONO_TYPE_GENERICINST)
3912 return &mono_defaults.int_class->byval_arg;
3915 if (MONO_TYPE_IS_REFERENCE (t))
3916 return &mono_defaults.object_class->byval_arg;
3919 /* The result needs to be boxed */
3925 return &mono_defaults.sbyte_class->byval_arg;
3927 return &mono_defaults.int16_class->byval_arg;
3929 return &mono_defaults.int32_class->byval_arg;
3931 return &mono_defaults.int64_class->byval_arg;
3932 case MONO_TYPE_BOOLEAN:
3933 return &mono_defaults.sbyte_class->byval_arg;
3934 case MONO_TYPE_CHAR:
3935 return &mono_defaults.int16_class->byval_arg;
3938 return &mono_defaults.int_class->byval_arg;
3939 case MONO_TYPE_VALUETYPE:
3940 if (t->data.klass->enumtype) {
3941 t = mono_class_enum_basetype (t->data.klass);
3951 * mono_marshal_get_runtime_invoke_sig:
3953 * Return a common signature used for sharing runtime invoke wrappers.
3955 static MonoMethodSignature*
3956 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3958 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3961 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3962 for (i = 0; i < res->param_count; ++i)
3963 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3969 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3971 /* Can't share wrappers which return a vtype since it needs to be boxed */
3972 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))
3975 return mono_metadata_signature_equal (sig1, sig2);
3979 * get_wrapper_target_class:
3981 * Return the class where a wrapper method should be placed.
3984 get_wrapper_target_class (MonoImage *image)
3990 * - can't put all wrappers into an mscorlib class, because they reference
3991 * metadata (signature) so they should be put into the same image as the
3992 * method they wrap, so they are unloaded together.
3993 * - putting them into a class with a type initalizer could cause the
3994 * initializer to be executed which can be a problem if the wrappers are
3996 * - putting them into an inflated class can cause problems if the the
3997 * class is deleted because it references an image which is unloaded.
3998 * To avoid these problems, we put the wrappers into the <Module> class of
4002 klass = ((MonoDynamicImage*)image)->wrappers_type;
4004 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
4011 runtime_invoke_reset_abort (MonoException *ex)
4013 if (ex->object.vtable->klass == mono_defaults.threadabortexception_class)
4014 ves_icall_System_Threading_Thread_ResetAbort ();
4018 * generates IL code for the runtime invoke function
4019 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4021 * we also catch exceptions if exc != null
4022 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4023 * it means that the compiled code for METHOD does not have to be looked up
4024 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4025 * its METHOD argument.
4028 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4030 MonoMethodSignature *sig, *csig, *callsig;
4031 MonoExceptionClause *clause;
4032 MonoMethodBuilder *mb;
4033 GHashTable *cache = NULL;
4034 MonoClass *target_klass;
4035 MonoMethod *res = NULL;
4036 static MonoString *string_dummy = NULL;
4037 static MonoMethodSignature *cctor_signature = NULL;
4038 static MonoMethodSignature *finalize_signature = NULL;
4041 gboolean need_direct_wrapper = FALSE;
4042 int *tmp_nullable_locals;
4046 if (!cctor_signature) {
4047 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4048 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4050 if (!finalize_signature) {
4051 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4052 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4053 finalize_signature->hasthis = 1;
4057 need_direct_wrapper = TRUE;
4060 * Use a separate cache indexed by methods to speed things up and to avoid the
4061 * boundless mempool growth caused by the signature_dup stuff below.
4064 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4066 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4067 res = mono_marshal_find_in_cache (cache, method);
4071 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4072 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4074 * Array Get/Set/Address methods. The JIT implements them using inline code
4075 * so we need to create an invoke wrapper which calls the method directly.
4077 need_direct_wrapper = TRUE;
4080 if (method->string_ctor) {
4081 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4083 callsig = add_string_ctor_signature (method);
4084 /* Can't share this as we push a string as this */
4085 need_direct_wrapper = TRUE;
4087 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4089 * Valuetype methods receive a managed pointer as the this argument.
4090 * Create a new signature to reflect this.
4092 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4093 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4094 need_direct_wrapper = TRUE;
4096 if (method->dynamic)
4097 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4099 callsig = mono_method_signature (method);
4104 /* Vtypes/nullables/Byrefs cause too many problems */
4105 for (i = 0; i < callsig->param_count; ++i) {
4106 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4107 need_direct_wrapper = TRUE;
4112 * We try to share runtime invoke wrappers between different methods but have to
4113 * be careful about methods whose klass has a type cctor, since putting the wrapper
4114 * into that klass would mean that calling a method of klass A might invoke the
4115 * type initializer of class B, or throw an exception if the type initializer
4116 * was called before and failed. See #349621 for an example.
4117 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4119 if (method->klass->image == mono_defaults.corlib)
4120 target_klass = mono_defaults.object_class;
4122 /* Try to share wrappers for non-corlib methods with simple signatures */
4123 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4124 callsig = cctor_signature;
4125 target_klass = mono_defaults.object_class;
4126 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4127 callsig = finalize_signature;
4128 target_klass = mono_defaults.object_class;
4130 // FIXME: This breaks too many things
4132 if (mono_class_get_cctor (method->klass))
4133 need_direct_wrapper = TRUE;
4136 target_klass = get_wrapper_target_class (method->klass->image);
4140 if (need_direct_wrapper) {
4141 /* Already searched at the start */
4143 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4145 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4146 (GHashFunc)mono_signature_hash,
4147 (GCompareFunc)runtime_invoke_signature_equal);
4149 /* from mono_marshal_find_in_cache */
4150 mono_marshal_lock ();
4151 res = g_hash_table_lookup (cache, callsig);
4152 mono_marshal_unlock ();
4159 // FIXME: When to free callsig ?
4162 /* to make it work with our special string constructors */
4163 if (!string_dummy) {
4164 MONO_GC_REGISTER_ROOT (string_dummy);
4165 string_dummy = mono_string_new_wrapper ("dummy");
4168 sig = mono_method_signature (method);
4170 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4172 csig->ret = &mono_defaults.object_class->byval_arg;
4173 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4174 csig->params [0] = callsig->params [0];
4176 csig->params [0] = &mono_defaults.object_class->byval_arg;
4177 csig->params [1] = &mono_defaults.int_class->byval_arg;
4178 csig->params [2] = &mono_defaults.int_class->byval_arg;
4179 csig->params [3] = &mono_defaults.int_class->byval_arg;
4181 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4182 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4185 /* allocate local 0 (object) tmp */
4186 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4187 /* allocate local 1 (object) exc */
4188 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4190 /* cond set *exc to null */
4191 mono_mb_emit_byte (mb, CEE_LDARG_2);
4192 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4193 mono_mb_emit_byte (mb, 3);
4194 mono_mb_emit_byte (mb, CEE_LDARG_2);
4195 mono_mb_emit_byte (mb, CEE_LDNULL);
4196 mono_mb_emit_byte (mb, CEE_STIND_REF);
4198 emit_thread_force_interrupt_checkpoint (mb);
4201 g_assert (sig->hasthis);
4202 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4206 if (method->string_ctor) {
4207 mono_mb_emit_ptr (mb, string_dummy);
4209 mono_mb_emit_ldarg (mb, 0);
4213 tmp_nullable_locals = g_new0 (int, sig->param_count);
4215 for (i = 0; i < sig->param_count; i++) {
4216 MonoType *t = sig->params [i];
4219 mono_mb_emit_ldarg (mb, 1);
4221 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4222 mono_mb_emit_byte (mb, CEE_ADD);
4226 mono_mb_emit_byte (mb, CEE_LDIND_I);
4227 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4228 * So to make this work we unbox it to a local variablee and push a reference to that.
4230 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4231 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4233 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4234 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4235 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4240 type = sig->params [i]->type;
4244 case MONO_TYPE_BOOLEAN:
4248 case MONO_TYPE_CHAR:
4257 mono_mb_emit_byte (mb, CEE_LDIND_I);
4258 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4260 case MONO_TYPE_STRING:
4261 case MONO_TYPE_CLASS:
4262 case MONO_TYPE_ARRAY:
4264 case MONO_TYPE_SZARRAY:
4265 case MONO_TYPE_OBJECT:
4266 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4268 case MONO_TYPE_GENERICINST:
4269 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4270 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4275 case MONO_TYPE_VALUETYPE:
4276 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4277 type = mono_class_enum_basetype (t->data.klass)->type;
4280 mono_mb_emit_byte (mb, CEE_LDIND_I);
4281 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4282 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4283 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4284 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4286 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4290 g_assert_not_reached ();
4295 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4296 } else if (need_direct_wrapper) {
4297 mono_mb_emit_op (mb, CEE_CALL, method);
4299 mono_mb_emit_ldarg (mb, 3);
4300 mono_mb_emit_calli (mb, callsig);
4303 if (sig->ret->byref) {
4305 g_assert_not_reached ();
4308 switch (sig->ret->type) {
4309 case MONO_TYPE_VOID:
4310 if (!method->string_ctor)
4311 mono_mb_emit_byte (mb, CEE_LDNULL);
4313 case MONO_TYPE_BOOLEAN:
4314 case MONO_TYPE_CHAR:
4327 case MONO_TYPE_VALUETYPE:
4328 case MONO_TYPE_TYPEDBYREF:
4329 case MONO_TYPE_GENERICINST:
4330 /* box value types */
4331 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4333 case MONO_TYPE_STRING:
4334 case MONO_TYPE_CLASS:
4335 case MONO_TYPE_ARRAY:
4336 case MONO_TYPE_SZARRAY:
4337 case MONO_TYPE_OBJECT:
4341 /* The result is an IntPtr */
4342 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4345 g_assert_not_reached ();
4348 mono_mb_emit_stloc (mb, 0);
4350 /* Convert back nullable-byref arguments */
4351 for (i = 0; i < sig->param_count; i++) {
4352 MonoType *t = sig->params [i];
4355 * Box the result and put it back into the array, the caller will have
4356 * to obtain it from there.
4358 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4359 mono_mb_emit_ldarg (mb, 1);
4360 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4361 mono_mb_emit_byte (mb, CEE_ADD);
4363 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4364 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4366 mono_mb_emit_byte (mb, CEE_STIND_REF);
4370 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4372 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4373 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4374 clause->try_len = mono_mb_get_label (mb);
4377 clause->data.filter_offset = mono_mb_get_label (mb);
4379 mono_mb_emit_byte (mb, CEE_POP);
4380 mono_mb_emit_byte (mb, CEE_LDARG_2);
4381 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4382 mono_mb_emit_byte (mb, CEE_PREFIX1);
4383 mono_mb_emit_byte (mb, CEE_CGT_UN);
4384 mono_mb_emit_byte (mb, CEE_PREFIX1);
4385 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4387 clause->handler_offset = mono_mb_get_label (mb);
4390 /* store exception */
4391 mono_mb_emit_stloc (mb, 1);
4393 mono_mb_emit_byte (mb, CEE_LDARG_2);
4394 mono_mb_emit_ldloc (mb, 1);
4395 mono_mb_emit_byte (mb, CEE_STIND_REF);
4397 mono_mb_emit_byte (mb, CEE_LDNULL);
4398 mono_mb_emit_stloc (mb, 0);
4400 /* Check and reset abort exception */
4401 /* Done in a separate function to reduce code size */
4402 mono_mb_emit_ldloc (mb, 1);
4403 mono_mb_emit_icall (mb, runtime_invoke_reset_abort);
4405 mono_mb_emit_branch (mb, CEE_LEAVE);
4407 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4409 mono_mb_set_clauses (mb, 1, clause);
4412 mono_mb_patch_branch (mb, pos);
4413 mono_mb_emit_ldloc (mb, 0);
4414 mono_mb_emit_byte (mb, CEE_RET);
4416 if (need_direct_wrapper) {
4417 mb->skip_visibility = 1;
4418 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4420 /* taken from mono_mb_create_and_cache */
4421 mono_marshal_lock ();
4422 res = g_hash_table_lookup (cache, callsig);
4423 mono_marshal_unlock ();
4425 /* Somebody may have created it before us */
4428 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4430 mono_marshal_lock ();
4431 res = g_hash_table_lookup (cache, callsig);
4434 g_hash_table_insert (cache, callsig, res);
4435 /* Can't insert it into wrapper_hash since the key is a signature */
4436 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4438 mono_free_method (newm);
4440 mono_marshal_unlock ();
4443 /* end mono_mb_create_and_cache */
4452 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4454 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4455 klass->name_space, klass->name);
4457 mono_mb_emit_exception_marshal_directive (mb, msg);
4461 * mono_marshal_get_ldfld_remote_wrapper:
4462 * @klass: The return type
4464 * This method generates a wrapper for calling mono_load_remote_field_new.
4465 * The return type is ignored for now, as mono_load_remote_field_new () always
4466 * returns an object. In the future, to optimize some codepaths, we might
4467 * call a different function that takes a pointer to a valuetype, instead.
4470 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4472 MonoMethodSignature *sig, *csig;
4473 MonoMethodBuilder *mb;
4475 static MonoMethod* cached = NULL;
4477 mono_marshal_lock ();
4479 mono_marshal_unlock ();
4482 mono_marshal_unlock ();
4484 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4486 mb->method->save_lmf = 1;
4488 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4489 sig->params [0] = &mono_defaults.object_class->byval_arg;
4490 sig->params [1] = &mono_defaults.int_class->byval_arg;
4491 sig->params [2] = &mono_defaults.int_class->byval_arg;
4492 sig->ret = &mono_defaults.object_class->byval_arg;
4494 mono_mb_emit_ldarg (mb, 0);
4495 mono_mb_emit_ldarg (mb, 1);
4496 mono_mb_emit_ldarg (mb, 2);
4498 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4499 csig->params [0] = &mono_defaults.object_class->byval_arg;
4500 csig->params [1] = &mono_defaults.int_class->byval_arg;
4501 csig->params [2] = &mono_defaults.int_class->byval_arg;
4502 csig->ret = &mono_defaults.object_class->byval_arg;
4505 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4506 emit_thread_interrupt_checkpoint (mb);
4508 mono_mb_emit_byte (mb, CEE_RET);
4510 mono_marshal_lock ();
4512 mono_marshal_unlock ();
4515 newm = mono_mb_create_method (mb, sig, 4);
4516 mono_marshal_lock ();
4521 mono_marshal_unlock ();
4523 mono_marshal_unlock ();
4524 mono_free_method (newm);
4533 * mono_marshal_get_ldfld_wrapper:
4534 * @type: the type of the field
4536 * This method generates a function which can be use to load a field with type
4537 * @type from an object. The generated function has the following signature:
4538 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4541 mono_marshal_get_ldfld_wrapper (MonoType *type)
4543 MonoMethodSignature *sig;
4544 MonoMethodBuilder *mb;
4549 int t, pos0, pos1 = 0;
4551 type = mono_type_get_underlying_type (type);
4556 if (type->type == MONO_TYPE_SZARRAY) {
4557 klass = mono_defaults.array_class;
4558 } else if (type->type == MONO_TYPE_VALUETYPE) {
4559 klass = type->data.klass;
4560 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4561 klass = mono_defaults.object_class;
4562 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4563 klass = mono_defaults.int_class;
4564 } else if (t == MONO_TYPE_GENERICINST) {
4565 if (mono_type_generic_inst_is_valuetype (type))
4566 klass = mono_class_from_mono_type (type);
4568 klass = mono_defaults.object_class;
4570 klass = mono_class_from_mono_type (type);
4573 klass = mono_defaults.int_class;
4576 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4577 if ((res = mono_marshal_find_in_cache (cache, klass)))
4580 /* we add the %p pointer value of klass because class names are not unique */
4581 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4582 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4585 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4586 sig->params [0] = &mono_defaults.object_class->byval_arg;
4587 sig->params [1] = &mono_defaults.int_class->byval_arg;
4588 sig->params [2] = &mono_defaults.int_class->byval_arg;
4589 sig->params [3] = &mono_defaults.int_class->byval_arg;
4590 sig->ret = &klass->byval_arg;
4592 mono_mb_emit_ldarg (mb, 0);
4593 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4595 mono_mb_emit_ldarg (mb, 0);
4596 mono_mb_emit_ldarg (mb, 1);
4597 mono_mb_emit_ldarg (mb, 2);
4599 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4602 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4603 csig->params [0] = &mono_defaults.object_class->byval_arg;
4604 csig->params [1] = &mono_defaults.int_class->byval_arg;
4605 csig->params [2] = &mono_defaults.int_class->byval_arg;
4606 csig->ret = &klass->this_arg;
4609 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4610 emit_thread_interrupt_checkpoint (mb);
4613 if (klass->valuetype) {
4614 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4615 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4617 mono_mb_emit_byte (mb, CEE_RET);
4621 mono_mb_patch_branch (mb, pos0);
4623 mono_mb_emit_ldarg (mb, 0);
4624 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4625 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4626 mono_mb_emit_ldarg (mb, 3);
4627 mono_mb_emit_byte (mb, CEE_ADD);
4629 if (klass->valuetype)
4630 mono_mb_patch_branch (mb, pos1);
4635 case MONO_TYPE_BOOLEAN:
4636 case MONO_TYPE_CHAR:
4645 case MONO_TYPE_ARRAY:
4646 case MONO_TYPE_SZARRAY:
4647 case MONO_TYPE_OBJECT:
4648 case MONO_TYPE_CLASS:
4649 case MONO_TYPE_STRING:
4653 case MONO_TYPE_FNPTR:
4654 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4656 case MONO_TYPE_VALUETYPE:
4657 g_assert (!klass->enumtype);
4658 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4660 case MONO_TYPE_GENERICINST:
4661 if (mono_type_generic_inst_is_valuetype (type)) {
4662 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4664 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4668 g_warning ("type %x not implemented", type->type);
4669 g_assert_not_reached ();
4672 mono_mb_emit_byte (mb, CEE_RET);
4674 res = mono_mb_create_and_cache (cache, klass,
4675 mb, sig, sig->param_count + 16);
4682 * mono_marshal_get_ldflda_wrapper:
4683 * @type: the type of the field
4685 * This method generates a function which can be used to load a field address
4686 * from an object. The generated function has the following signature:
4687 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4690 mono_marshal_get_ldflda_wrapper (MonoType *type)
4692 MonoMethodSignature *sig;
4693 MonoMethodBuilder *mb;
4698 int t, pos0, pos1, pos2, pos3;
4700 type = mono_type_get_underlying_type (type);
4704 if (type->type == MONO_TYPE_SZARRAY) {
4705 klass = mono_defaults.array_class;
4706 } else if (type->type == MONO_TYPE_VALUETYPE) {
4707 klass = type->data.klass;
4708 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4709 t == MONO_TYPE_CLASS) {
4710 klass = mono_defaults.object_class;
4711 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4712 klass = mono_defaults.int_class;
4713 } else if (t == MONO_TYPE_GENERICINST) {
4714 if (mono_type_generic_inst_is_valuetype (type))
4715 klass = mono_class_from_mono_type (type);
4717 klass = mono_defaults.object_class;
4719 klass = mono_class_from_mono_type (type);
4722 klass = mono_defaults.int_class;
4725 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4726 if ((res = mono_marshal_find_in_cache (cache, klass)))
4729 /* we add the %p pointer value of klass because class names are not unique */
4730 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4731 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4734 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4735 sig->params [0] = &mono_defaults.object_class->byval_arg;
4736 sig->params [1] = &mono_defaults.int_class->byval_arg;
4737 sig->params [2] = &mono_defaults.int_class->byval_arg;
4738 sig->params [3] = &mono_defaults.int_class->byval_arg;
4739 sig->ret = &mono_defaults.int_class->byval_arg;
4741 /* if typeof (this) != transparent_proxy goto pos0 */
4742 mono_mb_emit_ldarg (mb, 0);
4743 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4745 /* if same_appdomain goto pos1 */
4746 mono_mb_emit_ldarg (mb, 0);
4747 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4749 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4751 /* same app domain */
4752 mono_mb_patch_branch (mb, pos1);
4754 /* if typeof (this) != contextbound goto pos2 */
4755 mono_mb_emit_ldarg (mb, 0);
4756 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4758 /* if this->rp->context == mono_context_get goto pos3 */
4759 mono_mb_emit_ldarg (mb, 0);
4760 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4761 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4762 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4763 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4764 mono_mb_emit_icall (mb, mono_context_get);
4765 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4767 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4769 mono_mb_patch_branch (mb, pos2);
4770 mono_mb_patch_branch (mb, pos3);
4772 /* return the address of the field from this->rp->unwrapped_server */
4773 mono_mb_emit_ldarg (mb, 0);
4774 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4775 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4776 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4777 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4778 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4779 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4780 mono_mb_emit_ldarg (mb, 3);
4781 mono_mb_emit_byte (mb, CEE_ADD);
4782 mono_mb_emit_byte (mb, CEE_RET);
4784 /* not a proxy: return the address of the field directly */
4785 mono_mb_patch_branch (mb, pos0);
4787 mono_mb_emit_ldarg (mb, 0);
4788 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4789 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4790 mono_mb_emit_ldarg (mb, 3);
4791 mono_mb_emit_byte (mb, CEE_ADD);
4793 mono_mb_emit_byte (mb, CEE_RET);
4795 res = mono_mb_create_and_cache (cache, klass,
4796 mb, sig, sig->param_count + 16);
4803 * mono_marshal_get_stfld_remote_wrapper:
4804 * klass: The type of the field
4806 * This function generates a wrapper for calling mono_store_remote_field_new
4807 * with the appropriate signature.
4808 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4809 * klass argument anymore.
4812 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4814 MonoMethodSignature *sig, *csig;
4815 MonoMethodBuilder *mb;
4817 static MonoMethod *cached = NULL;
4819 mono_marshal_lock ();
4821 mono_marshal_unlock ();
4824 mono_marshal_unlock ();
4826 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4828 mb->method->save_lmf = 1;
4830 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4831 sig->params [0] = &mono_defaults.object_class->byval_arg;
4832 sig->params [1] = &mono_defaults.int_class->byval_arg;
4833 sig->params [2] = &mono_defaults.int_class->byval_arg;
4834 sig->params [3] = &mono_defaults.object_class->byval_arg;
4835 sig->ret = &mono_defaults.void_class->byval_arg;
4837 mono_mb_emit_ldarg (mb, 0);
4838 mono_mb_emit_ldarg (mb, 1);
4839 mono_mb_emit_ldarg (mb, 2);
4840 mono_mb_emit_ldarg (mb, 3);
4842 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4843 csig->params [0] = &mono_defaults.object_class->byval_arg;
4844 csig->params [1] = &mono_defaults.int_class->byval_arg;
4845 csig->params [2] = &mono_defaults.int_class->byval_arg;
4846 csig->params [3] = &mono_defaults.object_class->byval_arg;
4847 csig->ret = &mono_defaults.void_class->byval_arg;
4850 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4851 emit_thread_interrupt_checkpoint (mb);
4853 mono_mb_emit_byte (mb, CEE_RET);
4855 mono_marshal_lock ();
4857 mono_marshal_unlock ();
4860 newm = mono_mb_create_method (mb, sig, 6);
4861 mono_marshal_lock ();
4866 mono_marshal_unlock ();
4868 mono_marshal_unlock ();
4869 mono_free_method (newm);
4878 * mono_marshal_get_stfld_wrapper:
4879 * @type: the type of the field
4881 * This method generates a function which can be use to store a field with type
4882 * @type. The generated function has the following signature:
4883 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4886 mono_marshal_get_stfld_wrapper (MonoType *type)
4888 MonoMethodSignature *sig;
4889 MonoMethodBuilder *mb;
4896 type = mono_type_get_underlying_type (type);
4900 if (type->type == MONO_TYPE_SZARRAY) {
4901 klass = mono_defaults.array_class;
4902 } else if (type->type == MONO_TYPE_VALUETYPE) {
4903 klass = type->data.klass;
4904 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4905 klass = mono_defaults.object_class;
4906 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4907 klass = mono_defaults.int_class;
4908 } else if (t == MONO_TYPE_GENERICINST) {
4909 if (mono_type_generic_inst_is_valuetype (type))
4910 klass = mono_class_from_mono_type (type);
4912 klass = mono_defaults.object_class;
4914 klass = mono_class_from_mono_type (type);
4917 klass = mono_defaults.int_class;
4920 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4921 if ((res = mono_marshal_find_in_cache (cache, klass)))
4924 /* we add the %p pointer value of klass because class names are not unique */
4925 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4926 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4929 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4930 sig->params [0] = &mono_defaults.object_class->byval_arg;
4931 sig->params [1] = &mono_defaults.int_class->byval_arg;
4932 sig->params [2] = &mono_defaults.int_class->byval_arg;
4933 sig->params [3] = &mono_defaults.int_class->byval_arg;
4934 sig->params [4] = &klass->byval_arg;
4935 sig->ret = &mono_defaults.void_class->byval_arg;
4937 mono_mb_emit_ldarg (mb, 0);
4938 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4940 mono_mb_emit_ldarg (mb, 0);
4941 mono_mb_emit_ldarg (mb, 1);
4942 mono_mb_emit_ldarg (mb, 2);
4943 mono_mb_emit_ldarg (mb, 4);
4944 if (klass->valuetype)
4945 mono_mb_emit_op (mb, CEE_BOX, klass);
4947 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4949 mono_mb_emit_byte (mb, CEE_RET);
4951 mono_mb_patch_branch (mb, pos);
4953 mono_mb_emit_ldarg (mb, 0);
4954 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4955 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4956 mono_mb_emit_ldarg (mb, 3);
4957 mono_mb_emit_byte (mb, CEE_ADD);
4958 mono_mb_emit_ldarg (mb, 4);
4963 case MONO_TYPE_BOOLEAN:
4964 case MONO_TYPE_CHAR:
4973 case MONO_TYPE_ARRAY:
4974 case MONO_TYPE_SZARRAY:
4975 case MONO_TYPE_OBJECT:
4976 case MONO_TYPE_CLASS:
4977 case MONO_TYPE_STRING:
4981 case MONO_TYPE_FNPTR:
4982 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4984 case MONO_TYPE_VALUETYPE:
4985 g_assert (!klass->enumtype);
4986 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4988 case MONO_TYPE_GENERICINST:
4989 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4992 g_warning ("type %x not implemented", type->type);
4993 g_assert_not_reached ();
4996 mono_mb_emit_byte (mb, CEE_RET);
4998 res = mono_mb_create_and_cache (cache, klass,
4999 mb, sig, sig->param_count + 16);
5006 * generates IL code for the icall wrapper (the generated method
5007 * calls the unmanaged code in func)
5010 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5012 MonoMethodSignature *csig;
5013 MonoMethodBuilder *mb;
5017 g_assert (sig->pinvoke);
5019 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5021 mb->method->save_lmf = 1;
5023 /* we copy the signature, so that we can modify it */
5026 mono_mb_emit_byte (mb, CEE_LDARG_0);
5028 for (i = 0; i < sig->param_count; i++)
5029 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5031 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5032 if (check_exceptions)
5033 emit_thread_interrupt_checkpoint (mb);
5034 mono_mb_emit_byte (mb, CEE_RET);
5036 csig = signature_dup (mono_defaults.corlib, sig);
5038 if (csig->call_convention == MONO_CALL_VARARG)
5039 csig->call_convention = 0;
5041 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5048 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5049 MonoMarshalSpec *spec,
5050 int conv_arg, MonoType **conv_arg_type,
5051 MarshalAction action)
5055 static MonoClass *ICustomMarshaler = NULL;
5056 static MonoMethod *cleanup_native, *cleanup_managed;
5057 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5058 MonoMethod *get_instance;
5059 MonoMethodBuilder *mb = m->mb;
5060 char *exception_msg = NULL;
5064 if (!ICustomMarshaler) {
5065 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5066 g_assert (ICustomMarshaler);
5068 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5069 g_assert (cleanup_native);
5070 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5071 g_assert (cleanup_managed);
5072 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5073 g_assert (marshal_managed_to_native);
5074 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5075 g_assert (marshal_native_to_managed);
5078 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5079 g_assert (mtype != NULL);
5080 mklass = mono_class_from_mono_type (mtype);
5081 g_assert (mklass != NULL);
5083 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5084 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5086 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5088 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5089 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5090 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5091 (get_sig->params [0]->type != MONO_TYPE_STRING))
5092 get_instance = NULL;
5096 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);
5098 /* Throw exception and emit compensation code if neccesary */
5099 if (exception_msg) {
5101 case MARSHAL_ACTION_CONV_IN:
5102 case MARSHAL_ACTION_CONV_RESULT:
5103 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5104 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5105 mono_mb_emit_byte (mb, CEE_POP);
5107 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5108 g_free (exception_msg);
5111 case MARSHAL_ACTION_PUSH:
5112 mono_mb_emit_byte (mb, CEE_LDNULL);
5120 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5121 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5124 case MARSHAL_ACTION_CONV_IN:
5126 case MONO_TYPE_CLASS:
5127 case MONO_TYPE_OBJECT:
5128 case MONO_TYPE_STRING:
5129 case MONO_TYPE_ARRAY:
5130 case MONO_TYPE_SZARRAY:
5131 case MONO_TYPE_VALUETYPE:
5135 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5136 g_assert_not_reached ();
5140 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5142 mono_mb_emit_byte (mb, CEE_LDNULL);
5143 mono_mb_emit_stloc (mb, conv_arg);
5145 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5148 /* Minic MS.NET behavior */
5149 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5152 /* Check for null */
5153 mono_mb_emit_ldarg (mb, argnum);
5155 mono_mb_emit_byte (mb, CEE_LDIND_I);
5156 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5158 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5160 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5162 mono_mb_emit_ldarg (mb, argnum);
5164 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5166 if (t->type == MONO_TYPE_VALUETYPE) {
5168 * Since we can't determine the type of the argument, we
5169 * will assume the unmanaged function takes a pointer.
5171 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5173 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5176 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5177 mono_mb_emit_stloc (mb, conv_arg);
5179 mono_mb_patch_branch (mb, pos2);
5182 case MARSHAL_ACTION_CONV_OUT:
5183 /* Check for null */
5184 mono_mb_emit_ldloc (mb, conv_arg);
5185 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5188 mono_mb_emit_ldarg (mb, argnum);
5190 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5192 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5194 mono_mb_emit_ldloc (mb, conv_arg);
5195 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5196 mono_mb_emit_byte (mb, CEE_STIND_REF);
5197 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5198 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5200 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5202 mono_mb_emit_ldloc (mb, conv_arg);
5203 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5205 /* We have nowhere to store the result */
5206 mono_mb_emit_byte (mb, CEE_POP);
5209 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5211 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5213 mono_mb_emit_ldloc (mb, conv_arg);
5215 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5217 mono_mb_patch_branch (mb, pos2);
5220 case MARSHAL_ACTION_PUSH:
5222 mono_mb_emit_ldloc_addr (mb, conv_arg);
5224 mono_mb_emit_ldloc (mb, conv_arg);
5227 case MARSHAL_ACTION_CONV_RESULT:
5228 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5230 mono_mb_emit_stloc (mb, 3);
5232 mono_mb_emit_ldloc (mb, 3);
5233 mono_mb_emit_stloc (mb, loc1);
5235 /* Check for null */
5236 mono_mb_emit_ldloc (mb, 3);
5237 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5239 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5241 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5242 mono_mb_emit_byte (mb, CEE_DUP);
5244 mono_mb_emit_ldloc (mb, 3);
5245 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5246 mono_mb_emit_stloc (mb, 3);
5248 mono_mb_emit_ldloc (mb, loc1);
5249 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5251 mono_mb_patch_branch (mb, pos2);
5254 case MARSHAL_ACTION_MANAGED_CONV_IN:
5255 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5257 mono_mb_emit_byte (mb, CEE_LDNULL);
5258 mono_mb_emit_stloc (mb, conv_arg);
5260 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5263 /* Check for null */
5264 mono_mb_emit_ldarg (mb, argnum);
5266 mono_mb_emit_byte (mb, CEE_LDIND_I);
5267 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5269 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5270 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5272 mono_mb_emit_ldarg (mb, argnum);
5274 mono_mb_emit_byte (mb, CEE_LDIND_I);
5276 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5277 mono_mb_emit_stloc (mb, conv_arg);
5279 mono_mb_patch_branch (mb, pos2);
5282 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5283 g_assert (!t->byref);
5285 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5287 mono_mb_emit_stloc (mb, 3);
5289 mono_mb_emit_ldloc (mb, 3);
5290 mono_mb_emit_stloc (mb, loc1);
5292 /* Check for null */
5293 mono_mb_emit_ldloc (mb, 3);
5294 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5296 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5297 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5298 mono_mb_emit_byte (mb, CEE_DUP);
5300 mono_mb_emit_ldloc (mb, 3);
5301 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5302 mono_mb_emit_stloc (mb, 3);
5304 mono_mb_emit_ldloc (mb, loc1);
5305 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5307 mono_mb_patch_branch (mb, pos2);
5310 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5312 /* Check for null */
5313 mono_mb_emit_ldloc (mb, conv_arg);
5314 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5317 mono_mb_emit_ldarg (mb, argnum);
5319 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5321 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5323 mono_mb_emit_ldloc (mb, conv_arg);
5324 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5325 mono_mb_emit_byte (mb, CEE_STIND_I);
5328 /* Call CleanUpManagedData */
5329 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5331 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5333 mono_mb_emit_ldloc (mb, conv_arg);
5334 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5336 mono_mb_patch_branch (mb, pos2);
5340 g_assert_not_reached ();
5347 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5348 MonoMarshalSpec *spec,
5349 int conv_arg, MonoType **conv_arg_type,
5350 MarshalAction action)
5352 MonoMethodBuilder *mb = m->mb;
5355 case MARSHAL_ACTION_CONV_IN: {
5356 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5358 g_assert (t->type == MONO_TYPE_OBJECT);
5359 g_assert (!t->byref);
5361 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5362 mono_mb_emit_ldarg (mb, argnum);
5363 mono_mb_emit_icon (mb, encoding);
5364 mono_mb_emit_icon (mb, t->attrs);
5365 mono_mb_emit_icall (mb, mono_marshal_asany);
5366 mono_mb_emit_stloc (mb, conv_arg);
5370 case MARSHAL_ACTION_PUSH:
5371 mono_mb_emit_ldloc (mb, conv_arg);
5374 case MARSHAL_ACTION_CONV_OUT: {
5375 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5377 mono_mb_emit_ldarg (mb, argnum);
5378 mono_mb_emit_ldloc (mb, conv_arg);
5379 mono_mb_emit_icon (mb, encoding);
5380 mono_mb_emit_icon (mb, t->attrs);
5381 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5386 g_assert_not_reached ();
5393 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5394 MonoMarshalSpec *spec,
5395 int conv_arg, MonoType **conv_arg_type,
5396 MarshalAction action)
5398 MonoMethodBuilder *mb = m->mb;
5402 klass = mono_class_from_mono_type (t);
5405 case MARSHAL_ACTION_CONV_IN:
5406 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5407 klass->blittable || klass->enumtype)
5410 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5412 /* store the address of the source into local variable 0 */
5414 mono_mb_emit_ldarg (mb, argnum);
5416 mono_mb_emit_ldarg_addr (mb, argnum);
5418 mono_mb_emit_stloc (mb, 0);
5420 /* allocate space for the native struct and
5421 * store the address into local variable 1 (dest) */
5422 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5423 mono_mb_emit_byte (mb, CEE_PREFIX1);
5424 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5425 mono_mb_emit_stloc (mb, conv_arg);
5428 mono_mb_emit_ldloc (mb, 0);
5429 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5432 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5434 mono_mb_emit_ldloc (mb, conv_arg);
5435 mono_mb_emit_stloc (mb, 1);
5437 /* emit valuetype conversion code */
5438 emit_struct_conv (mb, klass, FALSE);
5442 mono_mb_patch_branch (mb, pos);
5445 case MARSHAL_ACTION_PUSH:
5446 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5448 g_assert (!t->byref);
5450 /* Have to change the signature since the vtype is passed byref */
5451 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5453 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5454 klass->blittable || klass->enumtype)
5455 mono_mb_emit_ldarg_addr (mb, argnum);
5457 mono_mb_emit_ldloc (mb, conv_arg);
5461 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5462 klass->blittable || klass->enumtype) {
5463 mono_mb_emit_ldarg (mb, argnum);
5466 mono_mb_emit_ldloc (mb, conv_arg);
5468 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5469 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5473 case MARSHAL_ACTION_CONV_OUT:
5474 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5475 klass->blittable || klass->enumtype)
5479 /* dst = argument */
5480 mono_mb_emit_ldarg (mb, argnum);
5481 mono_mb_emit_stloc (mb, 1);
5483 mono_mb_emit_ldloc (mb, 1);
5484 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5486 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5487 /* src = tmp_locals [i] */
5488 mono_mb_emit_ldloc (mb, conv_arg);
5489 mono_mb_emit_stloc (mb, 0);
5491 /* emit valuetype conversion code */
5492 emit_struct_conv (mb, klass, TRUE);
5496 emit_struct_free (mb, klass, conv_arg);
5499 mono_mb_patch_branch (mb, pos);
5502 case MARSHAL_ACTION_CONV_RESULT:
5503 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5505 mono_mb_emit_stloc (mb, 3);
5508 /* load pointer to returned value type */
5509 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5510 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5511 /* store the address of the source into local variable 0 */
5512 mono_mb_emit_stloc (mb, 0);
5514 mono_mb_emit_ldloc_addr (mb, 3);
5515 mono_mb_emit_stloc (mb, 1);
5517 /* emit valuetype conversion code */
5518 emit_struct_conv (mb, klass, TRUE);
5521 case MARSHAL_ACTION_MANAGED_CONV_IN:
5522 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5523 klass->blittable || klass->enumtype) {
5528 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5530 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5534 mono_mb_emit_ldarg (mb, argnum);
5536 mono_mb_emit_ldarg_addr (mb, argnum);
5537 mono_mb_emit_stloc (mb, 0);
5540 mono_mb_emit_ldloc (mb, 0);
5541 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5544 mono_mb_emit_ldloc_addr (mb, conv_arg);
5545 mono_mb_emit_stloc (mb, 1);
5547 /* emit valuetype conversion code */
5548 emit_struct_conv (mb, klass, TRUE);
5551 mono_mb_patch_branch (mb, pos);
5554 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5555 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5556 klass->blittable || klass->enumtype) {
5560 /* Check for null */
5561 mono_mb_emit_ldarg (mb, argnum);
5562 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5565 mono_mb_emit_ldloc_addr (mb, conv_arg);
5566 mono_mb_emit_stloc (mb, 0);
5569 mono_mb_emit_ldarg (mb, argnum);
5570 mono_mb_emit_stloc (mb, 1);
5572 /* emit valuetype conversion code */
5573 emit_struct_conv (mb, klass, FALSE);
5575 mono_mb_patch_branch (mb, pos2);
5578 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5579 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5580 klass->blittable || klass->enumtype) {
5581 mono_mb_emit_stloc (mb, 3);
5586 /* load pointer to returned value type */
5587 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5588 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5590 /* store the address of the source into local variable 0 */
5591 mono_mb_emit_stloc (mb, 0);
5592 /* allocate space for the native struct and
5593 * store the address into dst_ptr */
5594 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5595 m->retobj_class = klass;
5596 g_assert (m->retobj_var);
5597 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5598 mono_mb_emit_byte (mb, CEE_CONV_I);
5599 mono_mb_emit_icall (mb, mono_marshal_alloc);
5600 mono_mb_emit_stloc (mb, 1);
5601 mono_mb_emit_ldloc (mb, 1);
5602 mono_mb_emit_stloc (mb, m->retobj_var);
5604 /* emit valuetype conversion code */
5605 emit_struct_conv (mb, klass, FALSE);
5609 g_assert_not_reached ();
5616 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5617 MonoMarshalSpec *spec,
5618 int conv_arg, MonoType **conv_arg_type,
5619 MarshalAction action)
5621 MonoMethodBuilder *mb = m->mb;
5622 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5623 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5627 case MARSHAL_ACTION_CONV_IN:
5628 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5629 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5632 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5635 mono_mb_emit_ldarg (mb, argnum);
5636 mono_mb_emit_byte (mb, CEE_LDIND_I);
5638 mono_mb_emit_ldarg (mb, argnum);
5642 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5643 MonoException *exc = mono_get_exception_not_implemented (msg);
5644 g_warning ("%s", msg);
5646 mono_raise_exception (exc);
5649 mono_mb_emit_icall (mb, conv_to_icall (conv));
5651 mono_mb_emit_stloc (mb, conv_arg);
5654 case MARSHAL_ACTION_CONV_OUT:
5655 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5657 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5658 mono_mb_emit_exception_marshal_directive (mb, msg);
5662 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5663 mono_mb_emit_ldarg (mb, argnum);
5664 mono_mb_emit_ldloc (mb, conv_arg);
5665 mono_mb_emit_icall (mb, conv_to_icall (conv));
5666 mono_mb_emit_byte (mb, CEE_STIND_REF);
5669 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5670 mono_mb_emit_ldloc (mb, conv_arg);
5671 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5672 mono_mb_emit_icall (mb, mono_free_bstr);
5674 mono_mb_emit_icall (mb, mono_marshal_free);
5678 case MARSHAL_ACTION_PUSH:
5680 mono_mb_emit_ldloc_addr (mb, conv_arg);
5682 mono_mb_emit_ldloc (mb, conv_arg);
5685 case MARSHAL_ACTION_CONV_RESULT:
5686 mono_mb_emit_stloc (mb, 0);
5688 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5690 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5691 mono_mb_emit_exception_marshal_directive (mb, msg);
5695 mono_mb_emit_ldloc (mb, 0);
5696 mono_mb_emit_icall (mb, conv_to_icall (conv));
5697 mono_mb_emit_stloc (mb, 3);
5699 /* free the string */
5700 mono_mb_emit_ldloc (mb, 0);
5701 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5702 mono_mb_emit_icall (mb, mono_free_bstr);
5704 mono_mb_emit_icall (mb, mono_marshal_free);
5707 case MARSHAL_ACTION_MANAGED_CONV_IN:
5708 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5710 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5712 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5714 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5715 mono_mb_emit_exception_marshal_directive (mb, msg);
5719 mono_mb_emit_ldarg (mb, argnum);
5721 mono_mb_emit_byte (mb, CEE_LDIND_I);
5722 mono_mb_emit_icall (mb, conv_to_icall (conv));
5723 mono_mb_emit_stloc (mb, conv_arg);
5726 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5729 mono_mb_emit_ldarg (mb, argnum);
5730 mono_mb_emit_ldloc (mb, conv_arg);
5731 mono_mb_emit_icall (mb, conv_to_icall (conv));
5732 mono_mb_emit_byte (mb, CEE_STIND_I);
5737 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5738 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5739 /* We need to make a copy so the caller is able to free it */
5740 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5742 mono_mb_emit_icall (mb, conv_to_icall (conv));
5743 mono_mb_emit_stloc (mb, 3);
5747 g_assert_not_reached ();
5754 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5755 MonoMarshalSpec *spec, int conv_arg,
5756 MonoType **conv_arg_type, MarshalAction action)
5758 MonoMethodBuilder *mb = m->mb;
5761 case MARSHAL_ACTION_CONV_IN: {
5762 MonoType *intptr_type;
5763 int dar_release_slot, pos;
5765 intptr_type = &mono_defaults.int_class->byval_arg;
5766 conv_arg = mono_mb_add_local (mb, intptr_type);
5767 *conv_arg_type = intptr_type;
5769 if (!sh_dangerous_add_ref)
5770 init_safe_handle ();
5772 mono_mb_emit_ldarg (mb, argnum);
5773 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5774 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5776 mono_mb_patch_branch (mb, pos);
5779 * My tests in show that ref SafeHandles are not really
5780 * passed as ref objects. Instead a NULL is passed as the
5783 mono_mb_emit_icon (mb, 0);
5784 mono_mb_emit_stloc (mb, conv_arg);
5788 /* Create local to hold the ref parameter to DangerousAddRef */
5789 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5791 /* set release = false; */
5792 mono_mb_emit_icon (mb, 0);
5793 mono_mb_emit_stloc (mb, dar_release_slot);
5795 /* safehandle.DangerousAddRef (ref release) */
5796 mono_mb_emit_ldarg (mb, argnum);
5797 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5798 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5800 /* Pull the handle field from SafeHandle */
5801 mono_mb_emit_ldarg (mb, argnum);
5802 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5803 mono_mb_emit_byte (mb, CEE_LDIND_I);
5804 mono_mb_emit_stloc (mb, conv_arg);
5809 case MARSHAL_ACTION_PUSH:
5811 mono_mb_emit_ldloc_addr (mb, conv_arg);
5813 mono_mb_emit_ldloc (mb, conv_arg);
5816 case MARSHAL_ACTION_CONV_OUT: {
5817 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5818 int dar_release_slot = conv_arg + 1;
5821 if (!sh_dangerous_release)
5822 init_safe_handle ();
5828 * My tests indicate that ref SafeHandles parameters are not actually
5829 * passed by ref, but instead a new Handle is created regardless of
5830 * whether a change happens in the unmanaged side.
5832 * Also, the Handle is created before calling into unmanaged code,
5833 * but we do not support that mechanism (getting to the original
5834 * handle) and it makes no difference where we create this
5836 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5838 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5841 /* refval = new SafeHandleDerived ()*/
5842 mono_mb_emit_ldarg (mb, argnum);
5843 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5844 mono_mb_emit_byte (mb, CEE_STIND_REF);
5846 /* refval.handle = returned_handle */
5847 mono_mb_emit_ldarg (mb, argnum);
5848 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5849 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5850 mono_mb_emit_ldloc (mb, conv_arg);
5851 mono_mb_emit_byte (mb, CEE_STIND_I);
5853 mono_mb_emit_ldloc (mb, dar_release_slot);
5854 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5855 mono_mb_emit_ldarg (mb, argnum);
5856 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5857 mono_mb_patch_branch (mb, label_next);
5862 case MARSHAL_ACTION_CONV_RESULT: {
5863 MonoMethod *ctor = NULL;
5864 int intptr_handle_slot;
5866 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5867 mono_mb_emit_byte (mb, CEE_POP);
5868 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
5872 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5874 mono_mb_emit_byte (mb, CEE_POP);
5875 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5878 /* Store the IntPtr results into a local */
5879 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5880 mono_mb_emit_stloc (mb, intptr_handle_slot);
5882 /* Create return value */
5883 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5884 mono_mb_emit_stloc (mb, 3);
5886 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5887 mono_mb_emit_ldloc (mb, 3);
5888 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5889 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5890 mono_mb_emit_byte (mb, CEE_STIND_I);
5894 case MARSHAL_ACTION_MANAGED_CONV_IN:
5895 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5898 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5899 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5902 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5903 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5906 printf ("Unhandled case for MarshalAction: %d\n", action);
5913 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5914 MonoMarshalSpec *spec, int conv_arg,
5915 MonoType **conv_arg_type, MarshalAction action)
5917 MonoMethodBuilder *mb = m->mb;
5920 case MARSHAL_ACTION_CONV_IN: {
5921 MonoType *intptr_type;
5923 intptr_type = &mono_defaults.int_class->byval_arg;
5924 conv_arg = mono_mb_add_local (mb, intptr_type);
5925 *conv_arg_type = intptr_type;
5928 mono_mb_emit_exception_marshal_directive (mb,
5929 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5932 mono_mb_emit_ldarg_addr (mb, argnum);
5933 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
5934 mono_mb_emit_byte (mb, CEE_ADD);
5935 mono_mb_emit_byte (mb, CEE_LDIND_I);
5936 mono_mb_emit_stloc (mb, conv_arg);
5940 case MARSHAL_ACTION_PUSH:
5941 mono_mb_emit_ldloc (mb, conv_arg);
5944 case MARSHAL_ACTION_CONV_OUT: {
5945 /* no resource release required */
5949 case MARSHAL_ACTION_CONV_RESULT: {
5950 mono_mb_emit_exception_marshal_directive (mb,
5951 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5955 case MARSHAL_ACTION_MANAGED_CONV_IN:
5956 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5959 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5960 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5963 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5964 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5967 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5974 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5975 MonoMarshalSpec *spec,
5976 int conv_arg, MonoType **conv_arg_type,
5977 MarshalAction action)
5979 MonoMethodBuilder *mb = m->mb;
5980 MonoClass *klass = mono_class_from_mono_type (t);
5984 case MARSHAL_ACTION_CONV_IN:
5985 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5986 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5988 m->orig_conv_args [argnum] = 0;
5990 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5991 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5992 mono_mb_emit_exception_marshal_directive (mb, msg);
5996 if (klass->delegate) {
5998 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5999 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6000 mono_mb_emit_exception_marshal_directive (mb, msg);
6002 mono_mb_emit_byte (mb, CEE_LDNULL);
6003 mono_mb_emit_stloc (mb, conv_arg);
6005 mono_mb_emit_ldarg (mb, argnum);
6006 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6007 mono_mb_emit_stloc (mb, conv_arg);
6009 } else if (klass == mono_defaults.stringbuilder_class) {
6010 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6011 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6013 g_assert (!t->byref);
6014 mono_mb_emit_ldarg (mb, argnum);
6017 mono_mb_emit_icall (mb, conv_to_icall (conv));
6019 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6020 MonoException *exc = mono_get_exception_not_implemented (msg);
6021 g_warning ("%s", msg);
6023 mono_raise_exception (exc);
6026 mono_mb_emit_stloc (mb, conv_arg);
6027 } else if (klass->blittable) {
6028 mono_mb_emit_byte (mb, CEE_LDNULL);
6029 mono_mb_emit_stloc (mb, conv_arg);
6031 mono_mb_emit_ldarg (mb, argnum);
6032 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6034 mono_mb_emit_ldarg (mb, argnum);
6035 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6036 mono_mb_emit_stloc (mb, conv_arg);
6038 mono_mb_patch_branch (mb, pos);
6041 mono_mb_emit_byte (mb, CEE_LDNULL);
6042 mono_mb_emit_stloc (mb, conv_arg);
6045 /* we dont need any conversions for out parameters */
6046 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6049 mono_mb_emit_ldarg (mb, argnum);
6050 mono_mb_emit_byte (mb, CEE_LDIND_I);
6053 mono_mb_emit_ldarg (mb, argnum);
6054 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6055 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6058 /* store the address of the source into local variable 0 */
6059 mono_mb_emit_stloc (mb, 0);
6060 mono_mb_emit_ldloc (mb, 0);
6061 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6063 /* allocate space for the native struct and store the address */
6064 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6065 mono_mb_emit_byte (mb, CEE_PREFIX1);
6066 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6067 mono_mb_emit_stloc (mb, conv_arg);
6070 /* Need to store the original buffer so we can free it later */
6071 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6072 mono_mb_emit_ldloc (mb, conv_arg);
6073 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6076 /* set the src_ptr */
6077 mono_mb_emit_ldloc (mb, 0);
6078 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6079 mono_mb_emit_stloc (mb, 0);
6082 mono_mb_emit_ldloc (mb, conv_arg);
6083 mono_mb_emit_stloc (mb, 1);
6085 /* emit valuetype conversion code */
6086 emit_struct_conv (mb, klass, FALSE);
6088 mono_mb_patch_branch (mb, pos);
6092 case MARSHAL_ACTION_CONV_OUT:
6093 if (klass == mono_defaults.stringbuilder_class) {
6095 MonoMarshalNative encoding;
6096 MonoMarshalConv conv;
6098 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6099 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6101 g_assert (!t->byref);
6102 g_assert (encoding != -1);
6104 mono_mb_emit_ldarg (mb, argnum);
6105 mono_mb_emit_ldloc (mb, conv_arg);
6107 mono_mb_emit_icall (mb, conv_to_icall (conv));
6110 mono_mb_emit_ldloc (mb, conv_arg);
6111 mono_mb_emit_icall (mb, mono_marshal_free);
6116 if (klass->delegate) {
6118 mono_mb_emit_ldarg (mb, argnum);
6119 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6120 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6121 mono_mb_emit_ldloc (mb, conv_arg);
6122 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6123 mono_mb_emit_byte (mb, CEE_STIND_REF);
6128 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6129 /* allocate a new object */
6130 mono_mb_emit_ldarg (mb, argnum);
6131 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6132 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6133 mono_mb_emit_byte (mb, CEE_STIND_REF);
6136 /* dst = *argument */
6137 mono_mb_emit_ldarg (mb, argnum);
6140 mono_mb_emit_byte (mb, CEE_LDIND_I);
6142 mono_mb_emit_stloc (mb, 1);
6144 mono_mb_emit_ldloc (mb, 1);
6145 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6147 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6148 mono_mb_emit_ldloc (mb, 1);
6149 mono_mb_emit_icon (mb, sizeof (MonoObject));
6150 mono_mb_emit_byte (mb, CEE_ADD);
6151 mono_mb_emit_stloc (mb, 1);
6153 /* src = tmp_locals [i] */
6154 mono_mb_emit_ldloc (mb, conv_arg);
6155 mono_mb_emit_stloc (mb, 0);
6157 /* emit valuetype conversion code */
6158 emit_struct_conv (mb, klass, TRUE);
6160 /* Free the structure returned by the native code */
6161 emit_struct_free (mb, klass, conv_arg);
6163 if (m->orig_conv_args [argnum]) {
6165 * If the native function changed the pointer, then free
6166 * the original structure plus the new pointer.
6168 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6169 mono_mb_emit_ldloc (mb, conv_arg);
6170 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6172 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6173 g_assert (m->orig_conv_args [argnum]);
6175 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6178 mono_mb_emit_ldloc (mb, conv_arg);
6179 mono_mb_emit_icall (mb, g_free);
6181 mono_mb_patch_branch (mb, pos2);
6185 /* Free the original structure passed to native code */
6186 emit_struct_free (mb, klass, conv_arg);
6188 mono_mb_patch_branch (mb, pos);
6191 case MARSHAL_ACTION_PUSH:
6193 mono_mb_emit_ldloc_addr (mb, conv_arg);
6195 mono_mb_emit_ldloc (mb, conv_arg);
6198 case MARSHAL_ACTION_CONV_RESULT:
6199 if (klass->delegate) {
6200 g_assert (!t->byref);
6201 mono_mb_emit_stloc (mb, 0);
6202 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6203 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6204 mono_mb_emit_ldloc (mb, 0);
6205 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6206 mono_mb_emit_stloc (mb, 3);
6209 mono_mb_emit_stloc (mb, 0);
6211 /* Make a copy since emit_conv modifies local 0 */
6212 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6213 mono_mb_emit_ldloc (mb, 0);
6214 mono_mb_emit_stloc (mb, loc);
6216 mono_mb_emit_byte (mb, CEE_LDNULL);
6217 mono_mb_emit_stloc (mb, 3);
6219 mono_mb_emit_ldloc (mb, 0);
6220 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6222 /* allocate result object */
6224 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6225 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6226 mono_mb_emit_stloc (mb, 3);
6230 mono_mb_emit_ldloc (mb, 3);
6231 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6232 mono_mb_emit_stloc (mb, 1);
6234 /* emit conversion code */
6235 emit_struct_conv (mb, klass, TRUE);
6237 emit_struct_free (mb, klass, loc);
6239 /* Free the pointer allocated by unmanaged code */
6240 mono_mb_emit_ldloc (mb, loc);
6241 mono_mb_emit_icall (mb, g_free);
6242 mono_mb_patch_branch (mb, pos);
6246 case MARSHAL_ACTION_MANAGED_CONV_IN:
6247 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6249 if (klass->delegate) {
6250 g_assert (!t->byref);
6251 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6252 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6253 mono_mb_emit_ldarg (mb, argnum);
6254 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6255 mono_mb_emit_stloc (mb, conv_arg);
6259 if (klass == mono_defaults.stringbuilder_class) {
6260 MonoMarshalNative encoding;
6262 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6265 g_assert (encoding == MONO_NATIVE_LPSTR);
6267 g_assert (!t->byref);
6268 g_assert (encoding != -1);
6270 mono_mb_emit_ldarg (mb, argnum);
6271 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6272 mono_mb_emit_stloc (mb, conv_arg);
6276 /* The class can not have an automatic layout */
6277 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6278 mono_mb_emit_auto_layout_exception (mb, klass);
6282 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6283 mono_mb_emit_byte (mb, CEE_LDNULL);
6284 mono_mb_emit_stloc (mb, conv_arg);
6289 mono_mb_emit_ldarg (mb, argnum);
6293 /* Check for NULL and raise an exception */
6294 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6296 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6298 mono_mb_patch_branch (mb, pos2);
6299 mono_mb_emit_ldarg (mb, argnum);
6300 mono_mb_emit_byte (mb, CEE_LDIND_I);
6303 mono_mb_emit_stloc (mb, 0);
6305 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6306 mono_mb_emit_stloc (mb, conv_arg);
6308 mono_mb_emit_ldloc (mb, 0);
6309 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6311 /* Create and set dst */
6312 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6313 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6314 mono_mb_emit_stloc (mb, conv_arg);
6315 mono_mb_emit_ldloc (mb, conv_arg);
6316 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6317 mono_mb_emit_stloc (mb, 1);
6319 /* emit valuetype conversion code */
6320 emit_struct_conv (mb, klass, TRUE);
6322 mono_mb_patch_branch (mb, pos);
6325 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6327 /* Check for null */
6328 mono_mb_emit_ldloc (mb, conv_arg);
6329 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6330 mono_mb_emit_ldarg (mb, argnum);
6331 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6332 mono_mb_emit_byte (mb, CEE_STIND_REF);
6333 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6335 mono_mb_patch_branch (mb, pos);
6338 mono_mb_emit_ldloc (mb, conv_arg);
6339 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6340 mono_mb_emit_stloc (mb, 0);
6342 /* Allocate and set dest */
6343 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6344 mono_mb_emit_byte (mb, CEE_CONV_I);
6345 mono_mb_emit_icall (mb, mono_marshal_alloc);
6346 mono_mb_emit_stloc (mb, 1);
6348 /* Update argument pointer */
6349 mono_mb_emit_ldarg (mb, argnum);
6350 mono_mb_emit_ldloc (mb, 1);
6351 mono_mb_emit_byte (mb, CEE_STIND_I);
6353 /* emit valuetype conversion code */
6354 emit_struct_conv (mb, klass, FALSE);
6356 mono_mb_patch_branch (mb, pos2);
6358 /* byval [Out] marshalling */
6360 /* FIXME: Handle null */
6363 mono_mb_emit_ldloc (mb, conv_arg);
6364 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6365 mono_mb_emit_stloc (mb, 0);
6368 mono_mb_emit_ldarg (mb, argnum);
6369 mono_mb_emit_stloc (mb, 1);
6371 /* emit valuetype conversion code */
6372 emit_struct_conv (mb, klass, FALSE);
6376 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6377 if (klass->delegate) {
6378 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6379 mono_mb_emit_stloc (mb, 3);
6383 /* The class can not have an automatic layout */
6384 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6385 mono_mb_emit_auto_layout_exception (mb, klass);
6389 mono_mb_emit_stloc (mb, 0);
6390 /* Check for null */
6391 mono_mb_emit_ldloc (mb, 0);
6392 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6393 mono_mb_emit_byte (mb, CEE_LDNULL);
6394 mono_mb_emit_stloc (mb, 3);
6395 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6397 mono_mb_patch_branch (mb, pos);
6400 mono_mb_emit_ldloc (mb, 0);
6401 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6402 mono_mb_emit_stloc (mb, 0);
6404 /* Allocate and set dest */
6405 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6406 mono_mb_emit_byte (mb, CEE_CONV_I);
6407 mono_mb_emit_icall (mb, mono_marshal_alloc);
6408 mono_mb_emit_byte (mb, CEE_DUP);
6409 mono_mb_emit_stloc (mb, 1);
6410 mono_mb_emit_stloc (mb, 3);
6412 emit_struct_conv (mb, klass, FALSE);
6414 mono_mb_patch_branch (mb, pos2);
6418 g_assert_not_reached ();
6425 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6426 MonoMarshalSpec *spec,
6427 int conv_arg, MonoType **conv_arg_type,
6428 MarshalAction action)
6430 MonoMethodBuilder *mb = m->mb;
6431 static MonoMethod *get_object_for_native_variant = NULL;
6432 static MonoMethod *get_native_variant_for_object = NULL;
6434 mono_init_com_types ();
6436 if (!get_object_for_native_variant)
6437 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6438 g_assert (get_object_for_native_variant);
6440 if (!get_native_variant_for_object)
6441 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6442 g_assert (get_native_variant_for_object);
6445 case MARSHAL_ACTION_CONV_IN: {
6446 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6449 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6451 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6453 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6456 mono_mb_emit_ldarg (mb, argnum);
6458 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6459 mono_mb_emit_ldloc_addr (mb, conv_arg);
6460 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6464 case MARSHAL_ACTION_CONV_OUT: {
6465 static MonoMethod *variant_clear = NULL;
6468 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6469 g_assert (variant_clear);
6472 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6473 mono_mb_emit_ldarg (mb, argnum);
6474 mono_mb_emit_ldloc_addr (mb, conv_arg);
6475 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6476 mono_mb_emit_byte (mb, CEE_STIND_REF);
6479 mono_mb_emit_ldloc_addr (mb, conv_arg);
6480 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6484 case MARSHAL_ACTION_PUSH:
6486 mono_mb_emit_ldloc_addr (mb, conv_arg);
6488 mono_mb_emit_ldloc (mb, conv_arg);
6491 case MARSHAL_ACTION_CONV_RESULT: {
6492 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6493 mono_mb_emit_exception_marshal_directive (mb, msg);
6497 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6498 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6501 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6503 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6505 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6509 mono_mb_emit_ldarg (mb, argnum);
6511 mono_mb_emit_ldarg_addr (mb, argnum);
6512 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6513 mono_mb_emit_stloc (mb, conv_arg);
6517 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6518 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6519 mono_mb_emit_ldloc (mb, conv_arg);
6520 mono_mb_emit_ldarg (mb, argnum);
6521 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6526 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6527 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6528 mono_mb_emit_exception_marshal_directive (mb, msg);
6533 g_assert_not_reached ();
6540 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6541 MonoMarshalSpec *spec,
6542 int conv_arg, MonoType **conv_arg_type,
6543 MarshalAction action)
6545 MonoMethodBuilder *mb = m->mb;
6546 MonoClass *klass = mono_class_from_mono_type (t);
6547 gboolean need_convert, need_free;
6548 MonoMarshalNative encoding;
6550 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6553 case MARSHAL_ACTION_CONV_IN:
6554 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6555 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6557 if (klass->element_class->blittable) {
6558 mono_mb_emit_ldarg (mb, argnum);
6560 mono_mb_emit_byte (mb, CEE_LDIND_I);
6561 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6562 mono_mb_emit_stloc (mb, conv_arg);
6565 guint32 label1, label2, label3;
6566 int index_var, src_var, dest_ptr, esize;
6567 MonoMarshalConv conv;
6568 gboolean is_string = FALSE;
6570 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6572 eklass = klass->element_class;
6574 if (eklass == mono_defaults.string_class) {
6576 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6578 else if (eklass == mono_defaults.stringbuilder_class) {
6580 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6585 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6586 mono_mb_emit_ldarg (mb, argnum);
6588 mono_mb_emit_byte (mb, CEE_LDIND_I);
6589 mono_mb_emit_stloc (mb, src_var);
6592 mono_mb_emit_ldloc (mb, src_var);
6593 mono_mb_emit_stloc (mb, conv_arg);
6594 mono_mb_emit_ldloc (mb, src_var);
6595 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6599 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6600 MonoException *exc = mono_get_exception_not_implemented (msg);
6601 g_warning ("%s", msg);
6603 mono_raise_exception (exc);
6608 esize = sizeof (gpointer);
6610 esize = mono_class_native_size (eklass, NULL);
6612 /* allocate space for the native struct and store the address */
6613 mono_mb_emit_icon (mb, esize);
6614 mono_mb_emit_ldloc (mb, src_var);
6615 mono_mb_emit_byte (mb, CEE_LDLEN);
6617 if (eklass == mono_defaults.string_class) {
6618 /* Make the array bigger for the terminating null */
6619 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6620 mono_mb_emit_byte (mb, CEE_ADD);
6622 mono_mb_emit_byte (mb, CEE_MUL);
6623 mono_mb_emit_byte (mb, CEE_PREFIX1);
6624 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6625 mono_mb_emit_stloc (mb, conv_arg);
6627 mono_mb_emit_ldloc (mb, conv_arg);
6628 mono_mb_emit_stloc (mb, dest_ptr);
6630 /* Emit marshalling loop */
6631 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6632 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6633 mono_mb_emit_stloc (mb, index_var);
6634 label2 = mono_mb_get_label (mb);
6635 mono_mb_emit_ldloc (mb, index_var);
6636 mono_mb_emit_ldloc (mb, src_var);
6637 mono_mb_emit_byte (mb, CEE_LDLEN);
6638 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6640 /* Emit marshalling code */
6643 mono_mb_emit_ldloc (mb, dest_ptr);
6644 mono_mb_emit_ldloc (mb, src_var);
6645 mono_mb_emit_ldloc (mb, index_var);
6646 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6647 mono_mb_emit_icall (mb, conv_to_icall (conv));
6648 mono_mb_emit_byte (mb, CEE_STIND_I);
6650 /* set the src_ptr */
6651 mono_mb_emit_ldloc (mb, src_var);
6652 mono_mb_emit_ldloc (mb, index_var);
6653 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6654 mono_mb_emit_stloc (mb, 0);
6657 mono_mb_emit_ldloc (mb, dest_ptr);
6658 mono_mb_emit_stloc (mb, 1);
6660 /* emit valuetype conversion code */
6661 emit_struct_conv (mb, eklass, FALSE);
6664 mono_mb_emit_add_to_local (mb, index_var, 1);
6665 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6667 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6669 mono_mb_patch_branch (mb, label3);
6671 if (eklass == mono_defaults.string_class) {
6672 /* Null terminate */
6673 mono_mb_emit_ldloc (mb, dest_ptr);
6674 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6675 mono_mb_emit_byte (mb, CEE_STIND_REF);
6678 mono_mb_patch_branch (mb, label1);
6683 case MARSHAL_ACTION_CONV_OUT:
6684 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6685 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);
6686 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6689 if (need_convert || need_free) {
6690 /* FIXME: Optimize blittable case */
6692 guint32 label1, label2, label3;
6693 int index_var, src_ptr, loc, esize;
6695 eklass = klass->element_class;
6696 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6697 esize = sizeof (gpointer);
6699 esize = mono_class_native_size (eklass, NULL);
6700 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6701 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6704 mono_mb_emit_ldarg (mb, argnum);
6706 mono_mb_emit_byte (mb, CEE_LDIND_I);
6707 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6709 mono_mb_emit_ldloc (mb, conv_arg);
6710 mono_mb_emit_stloc (mb, src_ptr);
6712 /* Emit marshalling loop */
6713 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6714 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6715 mono_mb_emit_stloc (mb, index_var);
6716 label2 = mono_mb_get_label (mb);
6717 mono_mb_emit_ldloc (mb, index_var);
6718 mono_mb_emit_ldarg (mb, argnum);
6720 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6721 mono_mb_emit_byte (mb, CEE_LDLEN);
6722 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6724 /* Emit marshalling code */
6726 if (eklass == mono_defaults.stringbuilder_class) {
6727 gboolean need_free2;
6728 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6730 g_assert (conv != -1);
6733 mono_mb_emit_ldarg (mb, argnum);
6735 mono_mb_emit_byte (mb, CEE_LDIND_I);
6736 mono_mb_emit_ldloc (mb, index_var);
6737 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6740 mono_mb_emit_ldloc (mb, src_ptr);
6741 mono_mb_emit_byte (mb, CEE_LDIND_I);
6743 mono_mb_emit_icall (mb, conv_to_icall (conv));
6747 mono_mb_emit_ldloc (mb, src_ptr);
6748 mono_mb_emit_byte (mb, CEE_LDIND_I);
6750 mono_mb_emit_icall (mb, mono_marshal_free);
6753 else if (eklass == mono_defaults.string_class) {
6756 mono_mb_emit_ldloc (mb, src_ptr);
6757 mono_mb_emit_byte (mb, CEE_LDIND_I);
6759 mono_mb_emit_icall (mb, mono_marshal_free);
6764 /* set the src_ptr */
6765 mono_mb_emit_ldloc (mb, src_ptr);
6766 mono_mb_emit_stloc (mb, 0);
6769 mono_mb_emit_ldarg (mb, argnum);
6771 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6772 mono_mb_emit_ldloc (mb, index_var);
6773 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6774 mono_mb_emit_stloc (mb, 1);
6776 /* emit valuetype conversion code */
6777 emit_struct_conv (mb, eklass, TRUE);
6781 mono_mb_emit_ldloc (mb, src_ptr);
6782 mono_mb_emit_stloc (mb, loc);
6783 mono_mb_emit_ldloc (mb, loc);
6785 emit_struct_free (mb, eklass, loc);
6789 mono_mb_emit_add_to_local (mb, index_var, 1);
6790 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6792 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6794 mono_mb_patch_branch (mb, label1);
6795 mono_mb_patch_branch (mb, label3);
6798 if (klass->element_class->blittable) {
6799 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6801 mono_mb_emit_ldarg (mb, argnum);
6802 mono_mb_emit_ldloc (mb, conv_arg);
6803 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6808 case MARSHAL_ACTION_PUSH:
6810 mono_mb_emit_ldloc_addr (mb, conv_arg);
6812 mono_mb_emit_ldloc (mb, conv_arg);
6815 case MARSHAL_ACTION_CONV_RESULT:
6816 /* fixme: we need conversions here */
6817 mono_mb_emit_stloc (mb, 3);
6820 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6822 guint32 label1, label2, label3;
6823 int index_var, src_ptr, loc, esize, param_num, num_elem;
6824 MonoMarshalConv conv;
6825 gboolean is_string = FALSE;
6827 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6828 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6831 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6832 mono_mb_emit_exception_marshal_directive (mb, msg);
6836 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6837 mono_mb_emit_exception_marshal_directive (mb, msg);
6840 if (spec->native != MONO_NATIVE_LPARRAY) {
6841 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6842 mono_mb_emit_exception_marshal_directive (mb, msg);
6846 /* FIXME: t is from the method which is wrapped, not the delegate type */
6847 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6849 param_num = spec->data.array_data.param_num;
6850 num_elem = spec->data.array_data.num_elem;
6851 if (spec->data.array_data.elem_mult == 0)
6852 /* param_num is not specified */
6855 if (param_num == -1) {
6856 if (num_elem <= 0) {
6857 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6858 mono_mb_emit_exception_marshal_directive (mb, msg);
6863 /* FIXME: Optimize blittable case */
6865 eklass = klass->element_class;
6866 if (eklass == mono_defaults.string_class) {
6868 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6870 else if (eklass == mono_defaults.stringbuilder_class) {
6872 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6877 mono_marshal_load_type_info (eklass);
6880 esize = sizeof (gpointer);
6882 esize = mono_class_native_size (eklass, NULL);
6883 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6884 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6886 mono_mb_emit_byte (mb, CEE_LDNULL);
6887 mono_mb_emit_stloc (mb, conv_arg);
6889 /* Check param index */
6890 if (param_num != -1) {
6891 if (param_num >= m->sig->param_count) {
6892 char *msg = g_strdup ("Array size control parameter index is out of range.");
6893 mono_mb_emit_exception_marshal_directive (mb, msg);
6896 switch (m->sig->params [param_num]->type) {
6909 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6910 mono_mb_emit_exception_marshal_directive (mb, msg);
6917 mono_mb_emit_ldarg (mb, argnum);
6918 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6920 mono_mb_emit_ldarg (mb, argnum);
6921 mono_mb_emit_stloc (mb, src_ptr);
6923 /* Create managed array */
6925 * The LPArray marshalling spec says that sometimes param_num starts
6926 * from 1, sometimes it starts from 0. But MS seems to allways start
6930 if (param_num == -1) {
6931 mono_mb_emit_icon (mb, num_elem);
6933 mono_mb_emit_ldarg (mb, param_num);
6935 mono_mb_emit_icon (mb, num_elem);
6936 mono_mb_emit_byte (mb, CEE_ADD);
6938 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6941 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6942 mono_mb_emit_stloc (mb, conv_arg);
6944 if (eklass->blittable) {
6945 mono_mb_emit_ldloc (mb, conv_arg);
6946 mono_mb_emit_byte (mb, CEE_CONV_I);
6947 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6948 mono_mb_emit_byte (mb, CEE_ADD);
6949 mono_mb_emit_ldarg (mb, argnum);
6950 mono_mb_emit_ldloc (mb, conv_arg);
6951 mono_mb_emit_byte (mb, CEE_LDLEN);
6952 mono_mb_emit_icon (mb, esize);
6953 mono_mb_emit_byte (mb, CEE_MUL);
6954 mono_mb_emit_byte (mb, CEE_PREFIX1);
6955 mono_mb_emit_byte (mb, CEE_CPBLK);
6959 /* Emit marshalling loop */
6960 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6961 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6962 mono_mb_emit_stloc (mb, index_var);
6963 label2 = mono_mb_get_label (mb);
6964 mono_mb_emit_ldloc (mb, index_var);
6965 mono_mb_emit_ldloc (mb, conv_arg);
6966 mono_mb_emit_byte (mb, CEE_LDLEN);
6967 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6969 /* Emit marshalling code */
6971 g_assert (conv != -1);
6973 mono_mb_emit_ldloc (mb, conv_arg);
6974 mono_mb_emit_ldloc (mb, index_var);
6976 mono_mb_emit_ldloc (mb, src_ptr);
6977 mono_mb_emit_byte (mb, CEE_LDIND_I);
6979 mono_mb_emit_icall (mb, conv_to_icall (conv));
6980 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6983 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6984 mono_mb_emit_exception_marshal_directive (mb, msg);
6988 mono_mb_emit_add_to_local (mb, index_var, 1);
6989 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6991 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6993 mono_mb_patch_branch (mb, label1);
6994 mono_mb_patch_branch (mb, label3);
6998 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7000 guint32 label1, label2, label3;
7001 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7002 MonoMarshalConv conv;
7003 gboolean is_string = FALSE;
7006 /* Already handled in CONV_IN */
7009 /* These are already checked in CONV_IN */
7010 g_assert (!t->byref);
7011 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7012 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7014 param_num = spec->data.array_data.param_num;
7015 num_elem = spec->data.array_data.num_elem;
7017 if (spec->data.array_data.elem_mult == 0)
7018 /* param_num is not specified */
7021 if (param_num == -1) {
7022 if (num_elem <= 0) {
7023 g_assert_not_reached ();
7027 /* FIXME: Optimize blittable case */
7029 eklass = klass->element_class;
7030 if (eklass == mono_defaults.string_class) {
7032 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7034 else if (eklass == mono_defaults.stringbuilder_class) {
7036 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7041 mono_marshal_load_type_info (eklass);
7044 esize = sizeof (gpointer);
7046 esize = mono_class_native_size (eklass, NULL);
7048 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7049 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7052 mono_mb_emit_ldloc (mb, conv_arg);
7053 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7055 mono_mb_emit_ldarg (mb, argnum);
7056 mono_mb_emit_stloc (mb, dest_ptr);
7058 if (eklass->blittable) {
7060 mono_mb_emit_ldarg (mb, argnum);
7062 mono_mb_emit_ldloc (mb, conv_arg);
7063 mono_mb_emit_byte (mb, CEE_CONV_I);
7064 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7065 mono_mb_emit_byte (mb, CEE_ADD);
7067 mono_mb_emit_ldloc (mb, conv_arg);
7068 mono_mb_emit_byte (mb, CEE_LDLEN);
7069 mono_mb_emit_icon (mb, esize);
7070 mono_mb_emit_byte (mb, CEE_MUL);
7071 mono_mb_emit_byte (mb, CEE_PREFIX1);
7072 mono_mb_emit_byte (mb, CEE_CPBLK);
7076 /* Emit marshalling loop */
7077 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7078 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7079 mono_mb_emit_stloc (mb, index_var);
7080 label2 = mono_mb_get_label (mb);
7081 mono_mb_emit_ldloc (mb, index_var);
7082 mono_mb_emit_ldloc (mb, conv_arg);
7083 mono_mb_emit_byte (mb, CEE_LDLEN);
7084 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7086 /* Emit marshalling code */
7088 g_assert (conv != -1);
7091 mono_mb_emit_ldloc (mb, dest_ptr);
7094 mono_mb_emit_ldloc (mb, conv_arg);
7095 mono_mb_emit_ldloc (mb, index_var);
7097 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7099 mono_mb_emit_icall (mb, conv_to_icall (conv));
7100 mono_mb_emit_byte (mb, CEE_STIND_I);
7103 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7104 mono_mb_emit_exception_marshal_directive (mb, msg);
7108 mono_mb_emit_add_to_local (mb, index_var, 1);
7109 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7111 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7113 mono_mb_patch_branch (mb, label1);
7114 mono_mb_patch_branch (mb, label3);
7118 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7120 guint32 label1, label2, label3;
7121 int index_var, src, dest, esize;
7122 MonoMarshalConv conv = -1;
7123 gboolean is_string = FALSE;
7125 g_assert (!t->byref);
7127 eklass = klass->element_class;
7129 mono_marshal_load_type_info (eklass);
7131 if (eklass == mono_defaults.string_class) {
7133 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7136 g_assert_not_reached ();
7140 esize = sizeof (gpointer);
7142 esize = mono_class_native_size (eklass, NULL);
7144 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7145 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7147 mono_mb_emit_stloc (mb, src);
7148 mono_mb_emit_ldloc (mb, src);
7149 mono_mb_emit_stloc (mb, 3);
7151 /* Check for null */
7152 mono_mb_emit_ldloc (mb, src);
7153 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7155 /* Allocate native array */
7156 mono_mb_emit_icon (mb, esize);
7157 mono_mb_emit_ldloc (mb, src);
7158 mono_mb_emit_byte (mb, CEE_LDLEN);
7160 if (eklass == mono_defaults.string_class) {
7161 /* Make the array bigger for the terminating null */
7162 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7163 mono_mb_emit_byte (mb, CEE_ADD);
7165 mono_mb_emit_byte (mb, CEE_MUL);
7166 mono_mb_emit_icall (mb, mono_marshal_alloc);
7167 mono_mb_emit_stloc (mb, dest);
7168 mono_mb_emit_ldloc (mb, dest);
7169 mono_mb_emit_stloc (mb, 3);
7171 /* Emit marshalling loop */
7172 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7173 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7174 mono_mb_emit_stloc (mb, index_var);
7175 label2 = mono_mb_get_label (mb);
7176 mono_mb_emit_ldloc (mb, index_var);
7177 mono_mb_emit_ldloc (mb, src);
7178 mono_mb_emit_byte (mb, CEE_LDLEN);
7179 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7181 /* Emit marshalling code */
7183 g_assert (conv != -1);
7186 mono_mb_emit_ldloc (mb, dest);
7189 mono_mb_emit_ldloc (mb, src);
7190 mono_mb_emit_ldloc (mb, index_var);
7192 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7194 mono_mb_emit_icall (mb, conv_to_icall (conv));
7195 mono_mb_emit_byte (mb, CEE_STIND_I);
7198 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7199 mono_mb_emit_exception_marshal_directive (mb, msg);
7203 mono_mb_emit_add_to_local (mb, index_var, 1);
7204 mono_mb_emit_add_to_local (mb, dest, esize);
7206 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7208 mono_mb_patch_branch (mb, label3);
7209 mono_mb_patch_branch (mb, label1);
7213 g_assert_not_reached ();
7220 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7221 MonoMarshalSpec *spec,
7222 int conv_arg, MonoType **conv_arg_type,
7223 MarshalAction action)
7225 MonoMethodBuilder *mb = m->mb;
7228 case MARSHAL_ACTION_CONV_IN: {
7229 MonoType *local_type;
7231 guint8 ldc_op = CEE_LDC_I4_1;
7234 local_type = &mono_defaults.int32_class->byval_arg;
7236 switch (spec->native) {
7237 case MONO_NATIVE_I1:
7238 case MONO_NATIVE_U1:
7239 local_type = &mono_defaults.byte_class->byval_arg;
7241 case MONO_NATIVE_VARIANTBOOL:
7242 local_type = &mono_defaults.int16_class->byval_arg;
7243 ldc_op = CEE_LDC_I4_M1;
7245 case MONO_NATIVE_BOOLEAN:
7246 local_type = &mono_defaults.int32_class->byval_arg;
7249 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7250 local_type = &mono_defaults.int32_class->byval_arg;
7255 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7257 *conv_arg_type = local_type;
7258 conv_arg = mono_mb_add_local (mb, local_type);
7260 mono_mb_emit_ldarg (mb, argnum);
7262 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7263 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7264 mono_mb_emit_byte (mb, ldc_op);
7265 mono_mb_emit_stloc (mb, conv_arg);
7266 mono_mb_patch_branch (mb, label_false);
7271 case MARSHAL_ACTION_CONV_OUT:
7273 int label_false, label_end;
7277 mono_mb_emit_ldarg (mb, argnum);
7278 mono_mb_emit_ldloc (mb, conv_arg);
7280 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7281 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7283 label_end = mono_mb_emit_branch (mb, CEE_BR);
7284 mono_mb_patch_branch (mb, label_false);
7285 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7286 mono_mb_patch_branch (mb, label_end);
7288 mono_mb_emit_byte (mb, CEE_STIND_I1);
7292 case MARSHAL_ACTION_PUSH:
7294 mono_mb_emit_ldloc_addr (mb, conv_arg);
7296 mono_mb_emit_ldloc (mb, conv_arg);
7298 mono_mb_emit_ldarg (mb, argnum);
7301 case MARSHAL_ACTION_CONV_RESULT:
7302 /* maybe we need to make sure that it fits within 8 bits */
7303 mono_mb_emit_stloc (mb, 3);
7306 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7307 MonoClass* conv_arg_class = mono_defaults.int32_class;
7308 guint8 ldop = CEE_LDIND_I4;
7309 int label_null, label_false;
7311 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7314 switch (spec->native) {
7315 case MONO_NATIVE_I1:
7316 case MONO_NATIVE_U1:
7317 conv_arg_class = mono_defaults.byte_class;
7318 ldop = CEE_LDIND_I1;
7320 case MONO_NATIVE_VARIANTBOOL:
7321 conv_arg_class = mono_defaults.int16_class;
7322 ldop = CEE_LDIND_I2;
7324 case MONO_NATIVE_BOOLEAN:
7327 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7332 *conv_arg_type = &conv_arg_class->this_arg;
7334 *conv_arg_type = &conv_arg_class->byval_arg;
7337 mono_mb_emit_ldarg (mb, argnum);
7342 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7343 mono_mb_emit_ldarg (mb, argnum);
7344 mono_mb_emit_byte (mb, ldop);
7347 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7348 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7349 mono_mb_emit_stloc (mb, conv_arg);
7350 mono_mb_patch_branch (mb, label_false);
7353 mono_mb_patch_branch (mb, label_null);
7357 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7358 guint8 stop = CEE_STIND_I4;
7359 guint8 ldc_op = CEE_LDC_I4_1;
7360 int label_null,label_false, label_end;;
7365 switch (spec->native) {
7366 case MONO_NATIVE_I1:
7367 case MONO_NATIVE_U1:
7368 stop = CEE_STIND_I1;
7370 case MONO_NATIVE_VARIANTBOOL:
7371 stop = CEE_STIND_I2;
7372 ldc_op = CEE_LDC_I4_M1;
7380 mono_mb_emit_ldarg (mb, argnum);
7381 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7383 mono_mb_emit_ldarg (mb, argnum);
7384 mono_mb_emit_ldloc (mb, conv_arg);
7386 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7387 mono_mb_emit_byte (mb, ldc_op);
7388 label_end = mono_mb_emit_branch (mb, CEE_BR);
7390 mono_mb_patch_branch (mb, label_false);
7391 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7392 mono_mb_patch_branch (mb, label_end);
7394 mono_mb_emit_byte (mb, stop);
7395 mono_mb_patch_branch (mb, label_null);
7400 g_assert_not_reached ();
7407 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7408 MonoMarshalSpec *spec, int conv_arg,
7409 MonoType **conv_arg_type, MarshalAction action)
7411 MonoMethodBuilder *mb = m->mb;
7414 case MARSHAL_ACTION_CONV_IN:
7415 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7416 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7417 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7421 case MARSHAL_ACTION_PUSH:
7422 mono_mb_emit_ldarg (mb, argnum);
7425 case MARSHAL_ACTION_CONV_RESULT:
7426 /* no conversions necessary */
7427 mono_mb_emit_stloc (mb, 3);
7438 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7439 MonoMarshalSpec *spec, int conv_arg,
7440 MonoType **conv_arg_type, MarshalAction action)
7442 MonoMethodBuilder *mb = m->mb;
7445 case MARSHAL_ACTION_PUSH:
7446 /* fixme: dont know how to marshal that. We cant simply
7447 * convert it to a one byte UTF8 character, because an
7448 * unicode character may need more that one byte in UTF8 */
7449 mono_mb_emit_ldarg (mb, argnum);
7452 case MARSHAL_ACTION_CONV_RESULT:
7453 /* fixme: we need conversions here */
7454 mono_mb_emit_stloc (mb, 3);
7465 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7466 MonoMarshalSpec *spec, int conv_arg,
7467 MonoType **conv_arg_type, MarshalAction action)
7469 MonoMethodBuilder *mb = m->mb;
7472 case MARSHAL_ACTION_PUSH:
7473 mono_mb_emit_ldarg (mb, argnum);
7476 case MARSHAL_ACTION_CONV_RESULT:
7477 /* no conversions necessary */
7478 mono_mb_emit_stloc (mb, 3);
7489 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7490 MonoMarshalSpec *spec, int conv_arg,
7491 MonoType **conv_arg_type, MarshalAction action)
7493 /* Ensure that we have marshalling info for this param */
7494 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7496 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7497 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7499 if (spec && spec->native == MONO_NATIVE_ASANY)
7500 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7503 case MONO_TYPE_VALUETYPE:
7504 if (t->data.klass == mono_defaults.handleref_class)
7505 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7507 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7508 case MONO_TYPE_STRING:
7509 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7510 case MONO_TYPE_CLASS:
7511 case MONO_TYPE_OBJECT:
7512 if (spec && spec->native == MONO_NATIVE_STRUCT)
7513 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7516 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7517 spec->native == MONO_NATIVE_IDISPATCH ||
7518 spec->native == MONO_NATIVE_INTERFACE))
7519 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7520 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7521 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7522 (action == MARSHAL_ACTION_CONV_OUT))
7523 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7526 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7527 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7528 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7530 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7531 case MONO_TYPE_ARRAY:
7532 case MONO_TYPE_SZARRAY:
7533 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7534 case MONO_TYPE_BOOLEAN:
7535 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7537 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7538 case MONO_TYPE_CHAR:
7539 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7552 case MONO_TYPE_FNPTR:
7553 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7554 case MONO_TYPE_GENERICINST:
7555 if (mono_type_generic_inst_is_valuetype (t))
7556 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7558 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7565 * mono_marshal_emit_native_wrapper:
7566 * @image: the image to use for looking up custom marshallers
7567 * @sig: The signature of the native function
7568 * @piinfo: Marshalling information
7569 * @mspecs: Marshalling information
7570 * @aot: whenever the created method will be compiled by the AOT compiler
7571 * @method: if non-NULL, the pinvoke method to call
7572 * @check_exceptions: Whenever to check for pending exceptions after the native call
7574 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7577 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7579 EmitMarshalContext m;
7580 MonoMethodSignature *csig;
7582 int i, argnum, *tmp_locals;
7584 static MonoMethodSignature *get_last_error_sig = NULL;
7589 /* we copy the signature, so that we can set pinvoke to 0 */
7590 csig = signature_dup (mb->method->klass->image, sig);
7595 /* we allocate local for use with emit_struct_conv() */
7596 /* allocate local 0 (pointer) src_ptr */
7597 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7598 /* allocate local 1 (pointer) dst_ptr */
7599 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7600 /* allocate local 2 (boolean) delete_old */
7601 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7603 /* delete_old = FALSE */
7604 mono_mb_emit_icon (mb, 0);
7605 mono_mb_emit_stloc (mb, 2);
7607 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7608 /* allocate local 3 to store the return value */
7609 mono_mb_add_local (mb, sig->ret);
7612 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7613 /* Return type custom marshaling */
7615 * Since we can't determine the return type of the unmanaged function,
7616 * we assume it returns a pointer, and pass that pointer to
7617 * MarshalNativeToManaged.
7619 csig->ret = &mono_defaults.int_class->byval_arg;
7622 /* we first do all conversions */
7623 tmp_locals = alloca (sizeof (int) * sig->param_count);
7624 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7626 for (i = 0; i < sig->param_count; i ++) {
7627 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7630 /* push all arguments */
7633 mono_mb_emit_byte (mb, CEE_LDARG_0);
7635 for (i = 0; i < sig->param_count; i++) {
7636 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7639 /* call the native method */
7640 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7642 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7644 g_assert_not_reached ();
7649 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7650 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7651 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7652 mono_mb_emit_calli (mb, csig);
7654 mono_mb_emit_native_call (mb, csig, func);
7658 /* Set LastError if needed */
7659 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7660 if (!get_last_error_sig) {
7661 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7662 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7663 get_last_error_sig->pinvoke = 1;
7666 #ifdef PLATFORM_WIN32
7668 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7669 * clobber its value.
7671 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7672 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7674 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7678 /* convert the result */
7679 if (!sig->ret->byref) {
7680 MonoMarshalSpec *spec = mspecs [0];
7681 type = sig->ret->type;
7683 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7684 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7689 case MONO_TYPE_VOID:
7691 case MONO_TYPE_VALUETYPE:
7692 klass = sig->ret->data.klass;
7693 if (klass->enumtype) {
7694 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7697 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7711 case MONO_TYPE_FNPTR:
7712 case MONO_TYPE_STRING:
7713 case MONO_TYPE_CLASS:
7714 case MONO_TYPE_OBJECT:
7715 case MONO_TYPE_BOOLEAN:
7716 case MONO_TYPE_ARRAY:
7717 case MONO_TYPE_SZARRAY:
7718 case MONO_TYPE_CHAR:
7720 case MONO_TYPE_GENERICINST:
7721 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7723 case MONO_TYPE_TYPEDBYREF:
7725 g_warning ("return type 0x%02x unknown", sig->ret->type);
7726 g_assert_not_reached ();
7730 mono_mb_emit_stloc (mb, 3);
7734 * Need to call this after converting the result since MONO_VTADDR needs
7735 * to be adjacent to the call instruction.
7737 if (check_exceptions)
7738 emit_thread_interrupt_checkpoint (mb);
7740 /* we need to convert byref arguments back and free string arrays */
7741 for (i = 0; i < sig->param_count; i++) {
7742 MonoType *t = sig->params [i];
7743 MonoMarshalSpec *spec = mspecs [i + 1];
7745 argnum = i + sig->hasthis;
7747 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7748 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7753 case MONO_TYPE_STRING:
7754 case MONO_TYPE_VALUETYPE:
7755 case MONO_TYPE_CLASS:
7756 case MONO_TYPE_OBJECT:
7757 case MONO_TYPE_SZARRAY:
7758 case MONO_TYPE_BOOLEAN:
7759 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7764 if (!MONO_TYPE_IS_VOID(sig->ret))
7765 mono_mb_emit_ldloc (mb, 3);
7767 mono_mb_emit_byte (mb, CEE_RET);
7771 * mono_marshal_get_native_wrapper:
7772 * @method: The MonoMethod to wrap.
7773 * @check_exceptions: Whenever to check for pending exceptions
7775 * generates IL code for the pinvoke wrapper (the generated method
7776 * calls the unmanaged code in piinfo->addr)
7779 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7781 MonoMethodSignature *sig, *csig;
7782 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7783 MonoMethodBuilder *mb;
7784 MonoMarshalSpec **mspecs;
7787 gboolean pinvoke = FALSE;
7790 const char *exc_class = "MissingMethodException";
7791 const char *exc_arg = NULL;
7793 g_assert (method != NULL);
7794 g_assert (mono_method_signature (method)->pinvoke);
7797 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7799 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7800 if ((res = mono_marshal_find_in_cache (cache, method)))
7803 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7805 return mono_cominterop_get_native_wrapper (method);
7807 g_assert_not_reached ();
7811 sig = mono_method_signature (method);
7813 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7814 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7817 if (!piinfo->addr) {
7819 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7820 exc_arg = "Method contains unsupported native code";
7822 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7824 piinfo->addr = mono_lookup_internal_call (method);
7827 /* hack - redirect certain string constructors to CreateString */
7828 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7829 g_assert (!pinvoke);
7830 g_assert (method->string_ctor);
7831 g_assert (sig->hasthis);
7833 /* CreateString returns a value */
7834 csig = signature_dup (method->klass->image, sig);
7835 csig->ret = &mono_defaults.string_class->byval_arg;
7839 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7840 if (!strcmp ("CreateString", res->name) &&
7841 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7843 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7844 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7846 /* create a wrapper to preserve .ctor in stack trace */
7847 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7849 mono_mb_emit_byte (mb, CEE_LDARG_0);
7850 for (i = 1; i <= csig->param_count; i++)
7851 mono_mb_emit_ldarg (mb, i);
7852 mono_mb_emit_managed_call (mb, res, NULL);
7853 mono_mb_emit_byte (mb, CEE_RET);
7855 /* use native_wrapper_cache because internal calls are looked up there */
7856 res = mono_mb_create_and_cache (cache, method,
7857 mb, csig, csig->param_count + 1);
7865 /* exception will be thrown */
7866 piinfo->addr = NULL;
7867 g_warning ("cannot find CreateString for .ctor");
7870 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7872 mb->method->save_lmf = 1;
7875 * In AOT mode and embedding scenarios, it is possible that the icall is not
7876 * registered in the runtime doing the AOT compilation.
7878 if (!piinfo->addr && !aot) {
7879 mono_mb_emit_exception (mb, exc_class, exc_arg);
7880 csig = signature_dup (method->klass->image, sig);
7882 res = mono_mb_create_and_cache (cache, method,
7883 mb, csig, csig->param_count + 16);
7888 /* internal calls: we simply push all arguments and call the method (no conversions) */
7889 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7891 /* hack - string constructors returns a value */
7892 if (method->string_ctor) {
7893 csig = signature_dup (method->klass->image, sig);
7894 csig->ret = &mono_defaults.string_class->byval_arg;
7899 mono_mb_emit_byte (mb, CEE_LDARG_0);
7901 for (i = 0; i < sig->param_count; i++)
7902 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7905 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7906 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7907 mono_mb_emit_calli (mb, csig);
7909 g_assert (piinfo->addr);
7910 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7912 if (check_exceptions)
7913 emit_thread_interrupt_checkpoint (mb);
7914 mono_mb_emit_byte (mb, CEE_RET);
7916 csig = signature_dup (method->klass->image, csig);
7918 res = mono_mb_create_and_cache (cache, method,
7919 mb, csig, csig->param_count + 16);
7926 g_assert (piinfo->addr);
7928 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7929 mono_method_get_marshal_info (method, mspecs);
7931 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
7933 csig = signature_dup (method->klass->image, sig);
7935 res = mono_mb_create_and_cache (cache, method,
7936 mb, csig, csig->param_count + 16);
7939 for (i = sig->param_count; i >= 0; i--)
7941 mono_metadata_free_marshal_spec (mspecs [i]);
7944 /* 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)); */
7950 * mono_marshal_get_native_func_wrapper:
7951 * @image: The image to use for memory allocation and for looking up custom marshallers.
7952 * @sig: The signature of the function
7953 * @func: The native function to wrap
7955 * Returns a wrapper method around native functions, similar to the pinvoke
7959 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7960 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7962 MonoMethodSignature *csig;
7964 MonoMethodBuilder *mb;
7969 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7970 if ((res = mono_marshal_find_in_cache (cache, func)))
7973 name = g_strdup_printf ("wrapper_native_%p", func);
7974 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7975 mb->method->save_lmf = 1;
7977 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
7979 csig = signature_dup (image, sig);
7981 res = mono_mb_create_and_cache (cache, func,
7982 mb, csig, csig->param_count + 16);
7985 /* 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)); */
7991 * mono_marshal_emit_managed_wrapper:
7993 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7994 * the delegate which wraps the managed method to be called. For closed delegates,
7995 * it could have fewer parameters than the method it wraps.
7996 * THIS_LOC is the memory location where the target of the delegate is stored.
7999 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
8001 MonoMethodSignature *sig, *csig;
8003 gboolean closed = FALSE;
8008 /* allocate local 0 (pointer) src_ptr */
8009 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8010 /* allocate local 1 (pointer) dst_ptr */
8011 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8012 /* allocate local 2 (boolean) delete_old */
8013 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8015 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8016 /* Closed delegate */
8017 g_assert (sig->param_count == invoke_sig->param_count + 1);
8019 /* Use a new signature without the first argument */
8020 sig = mono_metadata_signature_dup (sig);
8021 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8022 sig->param_count --;
8025 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8026 /* allocate local 3 to store the return value */
8027 mono_mb_add_local (mb, sig->ret);
8030 mono_mb_emit_icon (mb, 0);
8031 mono_mb_emit_stloc (mb, 2);
8033 /* we first do all conversions */
8034 tmp_locals = alloca (sizeof (int) * sig->param_count);
8035 for (i = 0; i < sig->param_count; i ++) {
8036 MonoType *t = sig->params [i];
8039 case MONO_TYPE_OBJECT:
8040 case MONO_TYPE_CLASS:
8041 case MONO_TYPE_VALUETYPE:
8042 case MONO_TYPE_ARRAY:
8043 case MONO_TYPE_SZARRAY:
8044 case MONO_TYPE_STRING:
8045 case MONO_TYPE_BOOLEAN:
8046 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8055 emit_thread_interrupt_checkpoint (mb);
8059 mono_mb_emit_ptr (mb, this_loc);
8060 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8063 g_assert_not_reached ();
8065 } else if (closed) {
8066 mono_mb_emit_ptr (mb, this_loc);
8067 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8070 for (i = 0; i < sig->param_count; i++) {
8071 MonoType *t = sig->params [i];
8073 if (tmp_locals [i]) {
8075 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8077 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8080 mono_mb_emit_ldarg (mb, i);
8083 mono_mb_emit_managed_call (mb, method, NULL);
8085 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8086 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8087 } else if (!sig->ret->byref) {
8088 switch (sig->ret->type) {
8089 case MONO_TYPE_VOID:
8091 case MONO_TYPE_BOOLEAN:
8094 case MONO_TYPE_CHAR:
8106 case MONO_TYPE_OBJECT:
8107 mono_mb_emit_stloc (mb, 3);
8109 case MONO_TYPE_STRING:
8110 csig->ret = &mono_defaults.int_class->byval_arg;
8111 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8113 case MONO_TYPE_VALUETYPE:
8114 case MONO_TYPE_CLASS:
8115 case MONO_TYPE_SZARRAY:
8116 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8119 g_warning ("return type 0x%02x unknown", sig->ret->type);
8120 g_assert_not_reached ();
8123 mono_mb_emit_stloc (mb, 3);
8126 /* Convert byref arguments back */
8127 for (i = 0; i < sig->param_count; i ++) {
8128 MonoType *t = sig->params [i];
8129 MonoMarshalSpec *spec = mspecs [i + 1];
8131 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8132 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8134 else if (t->byref) {
8136 case MONO_TYPE_CLASS:
8137 case MONO_TYPE_VALUETYPE:
8138 case MONO_TYPE_OBJECT:
8139 case MONO_TYPE_STRING:
8140 case MONO_TYPE_BOOLEAN:
8141 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8145 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8146 /* The [Out] information is encoded in the delegate signature */
8148 case MONO_TYPE_SZARRAY:
8149 case MONO_TYPE_CLASS:
8150 case MONO_TYPE_VALUETYPE:
8151 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8154 g_assert_not_reached ();
8159 if (m->retobj_var) {
8160 mono_mb_emit_ldloc (mb, m->retobj_var);
8161 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8162 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8165 if (!MONO_TYPE_IS_VOID(sig->ret))
8166 mono_mb_emit_ldloc (mb, 3);
8167 mono_mb_emit_byte (mb, CEE_RET);
8176 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8178 MonoMethodSignature *sig;
8181 #ifdef PLATFORM_WIN32
8183 * Under windows, delegates passed to native code must use the STDCALL
8184 * calling convention.
8186 csig->call_convention = MONO_CALL_STDCALL;
8189 sig = mono_method_signature (method);
8191 /* Change default calling convention if needed */
8192 /* Why is this a modopt ? */
8193 if (sig->ret && sig->ret->num_mods) {
8194 for (i = 0; i < sig->ret->num_mods; ++i) {
8195 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8196 g_assert (cmod_class);
8197 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8198 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8199 csig->call_convention = MONO_CALL_C;
8200 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8201 csig->call_convention = MONO_CALL_STDCALL;
8202 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8203 csig->call_convention = MONO_CALL_FASTCALL;
8204 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8205 csig->call_convention = MONO_CALL_THISCALL;
8212 * generates IL code to call managed methods from unmanaged code
8215 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8217 static MonoClass *UnmanagedFunctionPointerAttribute;
8218 MonoMethodSignature *sig, *csig, *invoke_sig;
8219 MonoMethodBuilder *mb;
8220 MonoMethod *res, *invoke;
8221 MonoMarshalSpec **mspecs;
8222 MonoMethodPInvoke piinfo;
8225 EmitMarshalContext m;
8227 g_assert (method != NULL);
8228 g_assert (!mono_method_signature (method)->pinvoke);
8231 * FIXME: Should cache the method+delegate type pair, since the same method
8232 * could be called with different delegates, thus different marshalling
8235 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8236 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8239 invoke = mono_get_delegate_invoke (delegate_klass);
8240 invoke_sig = mono_method_signature (invoke);
8242 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8243 mono_method_get_marshal_info (invoke, mspecs);
8245 sig = mono_method_signature (method);
8247 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8249 /* we copy the signature, so that we can modify it */
8251 /* Need to free this later */
8252 csig = mono_metadata_signature_dup (invoke_sig);
8254 csig = signature_dup (method->klass->image, invoke_sig);
8263 m.image = method->klass->image;
8265 mono_marshal_set_callconv_from_modopt (invoke, csig);
8267 /* Handle the UnmanagedFunctionPointerAttribute */
8268 if (!UnmanagedFunctionPointerAttribute)
8269 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8271 /* The attribute is only available in Net 2.0 */
8272 if (UnmanagedFunctionPointerAttribute) {
8273 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8274 MonoCustomAttrInfo *cinfo;
8277 * The pinvoke attributes are stored in a real custom attribute so we have to
8280 cinfo = mono_custom_attrs_from_class (delegate_klass);
8282 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8284 memset (&piinfo, 0, sizeof (piinfo));
8286 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8288 csig->call_convention = attr->call_conv - 1;
8291 mono_custom_attrs_free (cinfo);
8295 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8298 res = mono_mb_create_and_cache (cache, method,
8299 mb, csig, sig->param_count + 16);
8302 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8306 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8308 mono_metadata_free_marshal_spec (mspecs [i]);
8311 /* 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)); */
8317 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8320 MonoMethodSignature *sig;
8321 MonoMethodBuilder *mb;
8326 method = mono_get_method (image, token, NULL);
8329 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8330 MonoMethodSignature *csig;
8331 MonoMarshalSpec **mspecs;
8332 EmitMarshalContext m;
8334 sig = mono_method_signature (method);
8335 g_assert (!sig->hasthis);
8337 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8338 mono_method_get_marshal_info (method, mspecs);
8340 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8341 csig = signature_dup (image, sig);
8352 mono_marshal_set_callconv_from_modopt (method, csig);
8354 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8356 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8359 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8362 for (i = sig->param_count; i >= 0; i--)
8364 mono_metadata_free_marshal_spec (mspecs [i]);
8367 return mono_compile_method (method);
8370 sig = mono_method_signature (method);
8371 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8373 param_count = sig->param_count + sig->hasthis;
8374 for (i = 0; i < param_count; i++)
8375 mono_mb_emit_ldarg (mb, i);
8377 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8378 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8380 mono_mb_emit_op (mb, CEE_CALL, method);
8381 mono_mb_emit_byte (mb, CEE_RET);
8384 method = mono_mb_create_method (mb, sig, param_count);
8387 return mono_compile_method (method);
8390 static MonoReflectionType *
8391 type_from_handle (MonoType *handle)
8393 MonoDomain *domain = mono_domain_get ();
8394 MonoClass *klass = mono_class_from_mono_type (handle);
8396 MONO_ARCH_SAVE_REGS;
8398 mono_class_init (klass);
8399 return mono_type_get_object (domain, handle);
8403 * mono_marshal_get_isinst:
8404 * @klass: the type of the field
8406 * This method generates a function which can be used to check if an object is
8407 * an instance of the given type, icluding the case where the object is a proxy.
8408 * The generated function has the following signature:
8409 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8412 mono_marshal_get_isinst (MonoClass *klass)
8414 static MonoMethodSignature *isint_sig = NULL;
8417 int pos_was_ok, pos_failed, pos_end, pos_end2;
8419 MonoMethodBuilder *mb;
8421 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8422 if ((res = mono_marshal_find_in_cache (cache, klass)))
8426 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8427 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8428 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8429 isint_sig->pinvoke = 0;
8432 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8433 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8436 mb->method->save_lmf = 1;
8438 /* check if the object is a proxy that needs special cast */
8439 mono_mb_emit_ldarg (mb, 0);
8440 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8441 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8443 /* The result of MONO_ISINST can be:
8444 0) the type check succeeded
8445 1) the type check did not succeed
8446 2) a CanCastTo call is needed */
8448 mono_mb_emit_byte (mb, CEE_DUP);
8449 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8451 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8452 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8454 /* get the real proxy from the transparent proxy*/
8456 mono_mb_emit_ldarg (mb, 0);
8457 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8458 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8462 mono_mb_patch_branch (mb, pos_failed);
8463 mono_mb_emit_byte (mb, CEE_LDNULL);
8464 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8468 mono_mb_patch_branch (mb, pos_was_ok);
8469 mono_mb_emit_byte (mb, CEE_POP);
8470 mono_mb_emit_ldarg (mb, 0);
8474 mono_mb_patch_branch (mb, pos_end);
8475 mono_mb_patch_branch (mb, pos_end2);
8476 mono_mb_emit_byte (mb, CEE_RET);
8478 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8485 * mono_marshal_get_castclass:
8486 * @klass: the type of the field
8488 * This method generates a function which can be used to cast an object to
8489 * an instance of the given type, icluding the case where the object is a proxy.
8490 * The generated function has the following signature:
8491 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8494 mono_marshal_get_castclass (MonoClass *klass)
8496 static MonoMethodSignature *castclass_sig = NULL;
8499 int pos_was_ok, pos_was_ok2;
8501 MonoMethodBuilder *mb;
8503 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8504 if ((res = mono_marshal_find_in_cache (cache, klass)))
8507 if (!castclass_sig) {
8508 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8509 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8510 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8511 castclass_sig->pinvoke = 0;
8514 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8515 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8518 mb->method->save_lmf = 1;
8520 /* check if the object is a proxy that needs special cast */
8521 mono_mb_emit_ldarg (mb, 0);
8522 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8523 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8525 /* The result of MONO_ISINST can be:
8526 0) the cast is valid
8527 1) cast of unknown proxy type
8528 or an exception if the cast is is invalid
8531 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8533 /* get the real proxy from the transparent proxy*/
8535 mono_mb_emit_ldarg (mb, 0);
8536 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8537 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8540 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8543 mono_mb_patch_branch (mb, pos_was_ok);
8544 mono_mb_patch_branch (mb, pos_was_ok2);
8545 mono_mb_emit_ldarg (mb, 0);
8548 mono_mb_emit_byte (mb, CEE_RET);
8550 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8557 mono_marshal_get_proxy_cancast (MonoClass *klass)
8559 static MonoMethodSignature *isint_sig = NULL;
8562 int pos_failed, pos_end;
8564 MonoMethod *can_cast_to;
8565 MonoMethodDesc *desc;
8566 MonoMethodBuilder *mb;
8568 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8569 if ((res = mono_marshal_find_in_cache (cache, klass)))
8573 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8574 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8575 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8576 isint_sig->pinvoke = 0;
8579 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8580 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8583 mb->method->save_lmf = 1;
8585 /* get the real proxy from the transparent proxy*/
8586 mono_mb_emit_ldarg (mb, 0);
8587 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8588 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8590 /* get the reflection type from the type handle */
8591 mono_mb_emit_ptr (mb, &klass->byval_arg);
8592 mono_mb_emit_icall (mb, type_from_handle);
8594 mono_mb_emit_ldarg (mb, 0);
8596 /* make the call to CanCastTo (type, ob) */
8597 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8598 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8599 g_assert (can_cast_to);
8600 mono_method_desc_free (desc);
8601 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8603 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8605 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8606 mono_mb_emit_ptr (mb, &klass->byval_arg);
8607 mono_mb_emit_icall (mb, type_from_handle);
8608 mono_mb_emit_ldarg (mb, 0);
8610 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8611 emit_thread_interrupt_checkpoint (mb);
8613 mono_mb_emit_ldarg (mb, 0);
8614 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8618 mono_mb_patch_branch (mb, pos_failed);
8619 mono_mb_emit_byte (mb, CEE_LDNULL);
8623 mono_mb_patch_branch (mb, pos_end);
8624 mono_mb_emit_byte (mb, CEE_RET);
8626 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8633 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8636 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8637 klass = mono_class_from_mono_type (rtype->type);
8638 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8642 * mono_marshal_get_struct_to_ptr:
8645 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8648 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8650 MonoMethodBuilder *mb;
8651 static MonoMethod *stoptr = NULL;
8654 g_assert (klass != NULL);
8656 mono_marshal_load_type_info (klass);
8658 if (klass->marshal_info->str_to_ptr)
8659 return klass->marshal_info->str_to_ptr;
8662 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8665 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8667 if (klass->blittable) {
8668 mono_mb_emit_byte (mb, CEE_LDARG_1);
8669 mono_mb_emit_byte (mb, CEE_LDARG_0);
8670 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8671 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8672 mono_mb_emit_byte (mb, CEE_PREFIX1);
8673 mono_mb_emit_byte (mb, CEE_CPBLK);
8676 /* allocate local 0 (pointer) src_ptr */
8677 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8678 /* allocate local 1 (pointer) dst_ptr */
8679 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8680 /* allocate local 2 (boolean) delete_old */
8681 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8682 mono_mb_emit_byte (mb, CEE_LDARG_2);
8683 mono_mb_emit_stloc (mb, 2);
8685 /* initialize src_ptr to point to the start of object data */
8686 mono_mb_emit_byte (mb, CEE_LDARG_0);
8687 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8688 mono_mb_emit_stloc (mb, 0);
8690 /* initialize dst_ptr */
8691 mono_mb_emit_byte (mb, CEE_LDARG_1);
8692 mono_mb_emit_stloc (mb, 1);
8694 emit_struct_conv (mb, klass, FALSE);
8697 mono_mb_emit_byte (mb, CEE_RET);
8699 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
8702 klass->marshal_info->str_to_ptr = res;
8707 * mono_marshal_get_ptr_to_struct:
8710 * generates IL code for PtrToStructure (IntPtr src, object structure)
8713 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8715 MonoMethodBuilder *mb;
8716 static MonoMethodSignature *ptostr = NULL;
8719 g_assert (klass != NULL);
8721 mono_marshal_load_type_info (klass);
8723 if (klass->marshal_info->ptr_to_str)
8724 return klass->marshal_info->ptr_to_str;
8727 MonoMethodSignature *sig;
8729 /* Create the signature corresponding to
8730 static void PtrToStructure (IntPtr ptr, object structure);
8731 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8732 sig = mono_create_icall_signature ("void ptr object");
8733 sig = signature_dup (mono_defaults.corlib, sig);
8735 mono_memory_barrier ();
8739 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8741 if (klass->blittable) {
8742 mono_mb_emit_byte (mb, CEE_LDARG_1);
8743 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8744 mono_mb_emit_byte (mb, CEE_LDARG_0);
8745 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8746 mono_mb_emit_byte (mb, CEE_PREFIX1);
8747 mono_mb_emit_byte (mb, CEE_CPBLK);
8750 /* allocate local 0 (pointer) src_ptr */
8751 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8752 /* allocate local 1 (pointer) dst_ptr */
8753 mono_mb_add_local (mb, &klass->this_arg);
8755 /* initialize src_ptr to point to the start of object data */
8756 mono_mb_emit_byte (mb, CEE_LDARG_0);
8757 mono_mb_emit_stloc (mb, 0);
8759 /* initialize dst_ptr */
8760 mono_mb_emit_byte (mb, CEE_LDARG_1);
8761 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8762 mono_mb_emit_stloc (mb, 1);
8764 emit_struct_conv (mb, klass, TRUE);
8767 mono_mb_emit_byte (mb, CEE_RET);
8769 res = mono_mb_create_method (mb, ptostr, 0);
8772 klass->marshal_info->ptr_to_str = res;
8777 * generates IL code for the synchronized wrapper: the generated method
8778 * calls METHOD while locking 'this' or the parent type.
8781 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8783 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8784 MonoMethodSignature *sig;
8785 MonoExceptionClause *clause;
8786 MonoMethodBuilder *mb;
8789 int i, pos, this_local, ret_local = 0;
8793 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8796 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8797 if ((res = mono_marshal_find_in_cache (cache, method)))
8800 sig = signature_dup (method->klass->image, mono_method_signature (method));
8803 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8806 if (!MONO_TYPE_IS_VOID (sig->ret))
8807 ret_local = mono_mb_add_local (mb, sig->ret);
8809 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8810 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8811 /* This will throw the type load exception when the wrapper is compiled */
8812 mono_mb_emit_byte (mb, CEE_LDNULL);
8813 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8814 mono_mb_emit_byte (mb, CEE_POP);
8816 if (!MONO_TYPE_IS_VOID (sig->ret))
8817 mono_mb_emit_ldloc (mb, ret_local);
8818 mono_mb_emit_byte (mb, CEE_RET);
8820 res = mono_mb_create_and_cache (cache, method,
8821 mb, sig, sig->param_count + 16);
8828 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8830 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8831 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8833 mono_loader_lock ();
8835 if (!enter_method) {
8836 MonoMethodDesc *desc;
8838 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8839 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8840 g_assert (enter_method);
8841 mono_method_desc_free (desc);
8843 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8844 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8845 g_assert (exit_method);
8846 mono_method_desc_free (desc);
8848 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8849 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
8850 g_assert (gettypefromhandle_method);
8851 mono_method_desc_free (desc);
8854 mono_loader_unlock ();
8856 /* Push this or the type object */
8857 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8858 /* We have special handling for this in the JIT */
8859 int index = mono_mb_add_data (mb, method->klass);
8860 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8861 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8862 mono_mb_emit_i4 (mb, index);
8864 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8867 mono_mb_emit_ldarg (mb, 0);
8868 mono_mb_emit_stloc (mb, this_local);
8870 /* Call Monitor::Enter() */
8871 mono_mb_emit_ldloc (mb, this_local);
8872 mono_mb_emit_managed_call (mb, enter_method, NULL);
8874 clause->try_offset = mono_mb_get_label (mb);
8876 /* Call the method */
8878 mono_mb_emit_ldarg (mb, 0);
8879 for (i = 0; i < sig->param_count; i++)
8880 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8882 mono_mb_emit_managed_call (mb, method, NULL);
8884 if (!MONO_TYPE_IS_VOID (sig->ret))
8885 mono_mb_emit_stloc (mb, ret_local);
8887 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8889 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8890 clause->handler_offset = mono_mb_get_label (mb);
8892 /* Call Monitor::Exit() */
8893 mono_mb_emit_ldloc (mb, this_local);
8894 mono_mb_emit_managed_call (mb, exit_method, NULL);
8895 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8897 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8899 mono_mb_patch_branch (mb, pos);
8900 if (!MONO_TYPE_IS_VOID (sig->ret))
8901 mono_mb_emit_ldloc (mb, ret_local);
8902 mono_mb_emit_byte (mb, CEE_RET);
8904 mono_mb_set_clauses (mb, 1, clause);
8906 res = mono_mb_create_and_cache (cache, method,
8907 mb, sig, sig->param_count + 16);
8915 * the returned method calls 'method' unboxing the this argument
8918 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8920 MonoMethodSignature *sig = mono_method_signature (method);
8922 MonoMethodBuilder *mb;
8926 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8927 if ((res = mono_marshal_find_in_cache (cache, method)))
8930 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8932 g_assert (sig->hasthis);
8934 mono_mb_emit_ldarg (mb, 0);
8935 mono_mb_emit_icon (mb, sizeof (MonoObject));
8936 mono_mb_emit_byte (mb, CEE_ADD);
8937 for (i = 0; i < sig->param_count; ++i)
8938 mono_mb_emit_ldarg (mb, i + 1);
8939 mono_mb_emit_managed_call (mb, method, NULL);
8940 mono_mb_emit_byte (mb, CEE_RET);
8942 res = mono_mb_create_and_cache (cache, method,
8943 mb, sig, sig->param_count + 16);
8946 /* 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)); */
8952 mono_marshal_get_stelemref ()
8954 static MonoMethod* ret = NULL;
8955 MonoMethodSignature *sig;
8956 MonoMethodBuilder *mb;
8958 guint32 b1, b2, b3, b4;
8961 int array_slot_addr;
8966 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8969 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8971 /* void stelemref (void* array, int idx, void* value) */
8972 sig->ret = &mono_defaults.void_class->byval_arg;
8973 sig->params [0] = &mono_defaults.object_class->byval_arg;
8974 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8975 sig->params [2] = &mono_defaults.object_class->byval_arg;
8977 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8978 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8979 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8983 <ldelema (bound check)>
8987 aklass = array->vtable->klass->element_class;
8988 vklass = value->vtable->klass;
8990 if (vklass->idepth < aklass->idepth)
8993 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8997 *array_slot_addr = value;
9001 if (mono_object_isinst (value, aklass))
9004 throw new ArrayTypeMismatchException ();
9007 /* ldelema (implicit bound check) */
9008 mono_mb_emit_ldarg (mb, 0);
9009 mono_mb_emit_ldarg (mb, 1);
9010 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9011 mono_mb_emit_stloc (mb, array_slot_addr);
9013 /* if (!value) goto do_store */
9014 mono_mb_emit_ldarg (mb, 2);
9015 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9017 /* aklass = array->vtable->klass->element_class */
9018 mono_mb_emit_ldarg (mb, 0);
9019 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9020 mono_mb_emit_byte (mb, CEE_LDIND_I);
9021 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9022 mono_mb_emit_byte (mb, CEE_LDIND_I);
9023 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9024 mono_mb_emit_byte (mb, CEE_LDIND_I);
9025 mono_mb_emit_stloc (mb, aklass);
9027 /* vklass = value->vtable->klass */
9028 mono_mb_emit_ldarg (mb, 2);
9029 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9030 mono_mb_emit_byte (mb, CEE_LDIND_I);
9031 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9032 mono_mb_emit_byte (mb, CEE_LDIND_I);
9033 mono_mb_emit_stloc (mb, vklass);
9035 /* if (vklass->idepth < aklass->idepth) goto failue */
9036 mono_mb_emit_ldloc (mb, vklass);
9037 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9038 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9040 mono_mb_emit_ldloc (mb, aklass);
9041 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9042 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9044 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9046 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9047 mono_mb_emit_ldloc (mb, vklass);
9048 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9049 mono_mb_emit_byte (mb, CEE_LDIND_I);
9051 mono_mb_emit_ldloc (mb, aklass);
9052 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9053 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9054 mono_mb_emit_icon (mb, 1);
9055 mono_mb_emit_byte (mb, CEE_SUB);
9056 mono_mb_emit_icon (mb, sizeof (void*));
9057 mono_mb_emit_byte (mb, CEE_MUL);
9058 mono_mb_emit_byte (mb, CEE_ADD);
9059 mono_mb_emit_byte (mb, CEE_LDIND_I);
9061 mono_mb_emit_ldloc (mb, aklass);
9063 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9065 copy_pos = mono_mb_get_label (mb);
9067 mono_mb_patch_branch (mb, b1);
9068 mono_mb_emit_ldloc (mb, array_slot_addr);
9069 mono_mb_emit_ldarg (mb, 2);
9070 mono_mb_emit_byte (mb, CEE_STIND_REF);
9072 mono_mb_emit_byte (mb, CEE_RET);
9075 mono_mb_patch_branch (mb, b2);
9076 mono_mb_patch_branch (mb, b3);
9078 mono_mb_emit_ldarg (mb, 2);
9079 mono_mb_emit_ldloc (mb, aklass);
9080 mono_mb_emit_icall (mb, mono_object_isinst);
9082 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9083 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9084 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9086 mono_mb_emit_byte (mb, CEE_RET);
9087 ret = mono_mb_create_method (mb, sig, 4);
9098 /* LOCKING: vars accessed under the marshal lock */
9099 static ArrayElemAddr *elem_addr_cache = NULL;
9100 static int elem_addr_cache_size = 0;
9101 static int elem_addr_cache_next = 0;
9104 * mono_marshal_get_array_address:
9105 * @rank: rank of the array type
9106 * @elem_size: size in bytes of an element of an array.
9108 * Returns a MonoMethd that implements the code to get the address
9109 * of an element in a multi-dimenasional array of @rank dimensions.
9110 * The returned method takes an array as the first argument and then
9111 * @rank indexes for the @rank dimensions.
9114 mono_marshal_get_array_address (int rank, int elem_size)
9117 MonoMethodBuilder *mb;
9118 MonoMethodSignature *sig;
9119 int i, bounds, ind, realidx;
9120 int branch_pos, *branch_positions;
9124 mono_marshal_lock ();
9125 for (i = 0; i < elem_addr_cache_next; ++i) {
9126 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9127 ret = elem_addr_cache [i].method;
9131 mono_marshal_unlock ();
9135 branch_positions = g_new0 (int, rank);
9137 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9139 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9140 sig->ret = &mono_defaults.int_class->byval_arg;
9141 sig->params [0] = &mono_defaults.object_class->byval_arg;
9142 for (i = 0; i < rank; ++i) {
9143 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9146 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9148 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9149 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9150 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9152 /* bounds = array->bounds; */
9153 mono_mb_emit_ldarg (mb, 0);
9154 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9155 mono_mb_emit_byte (mb, CEE_LDIND_I);
9156 mono_mb_emit_stloc (mb, bounds);
9158 /* ind is the overall element index, realidx is the partial index in a single dimension */
9159 /* ind = idx0 - bounds [0].lower_bound */
9160 mono_mb_emit_ldarg (mb, 1);
9161 mono_mb_emit_ldloc (mb, bounds);
9162 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9163 mono_mb_emit_byte (mb, CEE_ADD);
9164 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9165 mono_mb_emit_byte (mb, CEE_SUB);
9166 mono_mb_emit_stloc (mb, ind);
9167 /* if (ind >= bounds [0].length) goto exeception; */
9168 mono_mb_emit_ldloc (mb, ind);
9169 mono_mb_emit_ldloc (mb, bounds);
9170 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9171 mono_mb_emit_byte (mb, CEE_ADD);
9172 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9173 /* note that we use unsigned comparison */
9174 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9176 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9177 * We could also decide to ignore the passed elem_size and get it
9178 * from the array object, to reduce the number of methods we generate:
9179 * the additional cost is 3 memory loads and a non-immediate mul.
9181 for (i = 1; i < rank; ++i) {
9182 /* realidx = idxi - bounds [i].lower_bound */
9183 mono_mb_emit_ldarg (mb, 1 + i);
9184 mono_mb_emit_ldloc (mb, bounds);
9185 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9186 mono_mb_emit_byte (mb, CEE_ADD);
9187 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9188 mono_mb_emit_byte (mb, CEE_SUB);
9189 mono_mb_emit_stloc (mb, realidx);
9190 /* if (realidx >= bounds [i].length) goto exeception; */
9191 mono_mb_emit_ldloc (mb, realidx);
9192 mono_mb_emit_ldloc (mb, bounds);
9193 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9194 mono_mb_emit_byte (mb, CEE_ADD);
9195 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9196 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9197 /* ind = ind * bounds [i].length + realidx */
9198 mono_mb_emit_ldloc (mb, ind);
9199 mono_mb_emit_ldloc (mb, bounds);
9200 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9201 mono_mb_emit_byte (mb, CEE_ADD);
9202 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9203 mono_mb_emit_byte (mb, CEE_MUL);
9204 mono_mb_emit_ldloc (mb, realidx);
9205 mono_mb_emit_byte (mb, CEE_ADD);
9206 mono_mb_emit_stloc (mb, ind);
9209 /* return array->vector + ind * element_size */
9210 mono_mb_emit_ldarg (mb, 0);
9211 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9212 mono_mb_emit_ldloc (mb, ind);
9213 mono_mb_emit_icon (mb, elem_size);
9214 mono_mb_emit_byte (mb, CEE_MUL);
9215 mono_mb_emit_byte (mb, CEE_ADD);
9216 mono_mb_emit_byte (mb, CEE_RET);
9218 /* patch the branches to get here and throw */
9219 for (i = 1; i < rank; ++i) {
9220 mono_mb_patch_branch (mb, branch_positions [i]);
9222 mono_mb_patch_branch (mb, branch_pos);
9223 /* throw exception */
9224 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9226 g_free (branch_positions);
9227 ret = mono_mb_create_method (mb, sig, 4);
9230 /* cache the result */
9232 mono_marshal_lock ();
9233 for (i = 0; i < elem_addr_cache_next; ++i) {
9234 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9235 /* FIXME: free ret */
9236 ret = elem_addr_cache [i].method;
9242 if (elem_addr_cache_next >= elem_addr_cache_size) {
9243 int new_size = elem_addr_cache_size + 4;
9244 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9245 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9246 g_free (elem_addr_cache);
9247 elem_addr_cache = new_array;
9248 elem_addr_cache_size = new_size;
9250 elem_addr_cache [elem_addr_cache_next].rank = rank;
9251 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9252 elem_addr_cache [elem_addr_cache_next].method = ret;
9254 mono_marshal_unlock ();
9259 mono_marshal_alloc (gulong size)
9263 #ifdef PLATFORM_WIN32
9264 res = CoTaskMemAlloc (size);
9266 res = g_try_malloc ((gulong)size);
9268 mono_gc_out_of_memory ((gulong)size);
9274 mono_marshal_free (gpointer ptr)
9276 #ifdef PLATFORM_WIN32
9277 CoTaskMemFree (ptr);
9284 mono_marshal_free_array (gpointer *ptr, int size)
9291 for (i = 0; i < size; i++)
9297 mono_marshal_string_to_utf16 (MonoString *s)
9299 return s ? mono_string_chars (s) : NULL;
9303 mono_marshal_string_to_utf16_copy (MonoString *s)
9308 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9309 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9310 res [mono_string_length (s)] = 0;
9316 * mono_marshal_set_last_error:
9318 * This function is invoked to set the last error value from a P/Invoke call
9319 * which has SetLastError set.
9322 mono_marshal_set_last_error (void)
9325 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9327 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9332 mono_marshal_set_last_error_windows (int error)
9335 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9340 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9341 gpointer dest, gint32 length)
9346 MONO_ARCH_SAVE_REGS;
9348 MONO_CHECK_ARG_NULL (src);
9349 MONO_CHECK_ARG_NULL (dest);
9351 if (src->obj.vtable->klass->rank != 1)
9352 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9353 if (start_index < 0)
9354 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9356 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9357 if (start_index + length > mono_array_length (src))
9358 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9360 element_size = mono_array_element_size (src->obj.vtable->klass);
9362 /* no references should be involved */
9363 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9365 memcpy (dest, source_addr, length * element_size);
9369 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9370 MonoArray *dest, gint32 length)
9375 MONO_ARCH_SAVE_REGS;
9377 MONO_CHECK_ARG_NULL (src);
9378 MONO_CHECK_ARG_NULL (dest);
9380 if (dest->obj.vtable->klass->rank != 1)
9381 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9382 if (start_index < 0)
9383 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9385 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9386 if (start_index + length > mono_array_length (dest))
9387 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9389 element_size = mono_array_element_size (dest->obj.vtable->klass);
9391 /* no references should be involved */
9392 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9394 memcpy (dest_addr, src, length * element_size);
9397 #if NO_UNALIGNED_ACCESS
9398 #define RETURN_UNALIGNED(type, addr) \
9401 memcpy(&val, p + offset, sizeof(val)); \
9404 #define WRITE_UNALIGNED(type, addr, val) \
9405 memcpy(addr, &val, sizeof(type))
9407 #define RETURN_UNALIGNED(type, addr) \
9408 return *(type*)(p + offset);
9409 #define WRITE_UNALIGNED(type, addr, val) \
9410 (*(type *)(addr) = (val))
9414 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9418 MONO_ARCH_SAVE_REGS;
9420 RETURN_UNALIGNED(gpointer, p + offset);
9424 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9428 MONO_ARCH_SAVE_REGS;
9430 return *(unsigned char*)(p + offset);
9434 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9438 MONO_ARCH_SAVE_REGS;
9440 RETURN_UNALIGNED(gint16, p + offset);
9444 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9448 MONO_ARCH_SAVE_REGS;
9450 RETURN_UNALIGNED(gint32, p + offset);
9454 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9458 MONO_ARCH_SAVE_REGS;
9460 RETURN_UNALIGNED(gint64, p + offset);
9464 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9468 MONO_ARCH_SAVE_REGS;
9470 *(unsigned char*)(p + offset) = val;
9474 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9478 MONO_ARCH_SAVE_REGS;
9480 WRITE_UNALIGNED(gpointer, p + offset, val);
9484 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9488 MONO_ARCH_SAVE_REGS;
9490 WRITE_UNALIGNED(gint16, p + offset, val);
9494 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9498 MONO_ARCH_SAVE_REGS;
9500 WRITE_UNALIGNED(gint32, p + offset, val);
9504 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9508 MONO_ARCH_SAVE_REGS;
9510 WRITE_UNALIGNED(gint64, p + offset, val);
9514 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9516 MONO_ARCH_SAVE_REGS;
9521 return mono_string_new (mono_domain_get (), ptr);
9525 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9527 MONO_ARCH_SAVE_REGS;
9530 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9531 g_assert_not_reached ();
9534 return mono_string_new_len (mono_domain_get (), ptr, len);
9539 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9541 MonoDomain *domain = mono_domain_get ();
9545 MONO_ARCH_SAVE_REGS;
9553 return mono_string_new_utf16 (domain, ptr, len);
9557 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9559 MonoDomain *domain = mono_domain_get ();
9561 MONO_ARCH_SAVE_REGS;
9564 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9565 g_assert_not_reached ();
9568 return mono_string_new_utf16 (domain, ptr, len);
9573 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9575 MONO_ARCH_SAVE_REGS;
9577 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9581 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9587 MONO_ARCH_SAVE_REGS;
9589 MONO_CHECK_ARG_NULL (rtype);
9592 klass = mono_class_from_mono_type (type);
9593 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9595 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9599 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9600 exc = mono_get_exception_argument ("t", msg);
9602 mono_raise_exception (exc);
9606 return mono_class_native_size (klass, NULL);
9610 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9615 MONO_ARCH_SAVE_REGS;
9617 MONO_CHECK_ARG_NULL (obj);
9618 MONO_CHECK_ARG_NULL (dst);
9620 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9624 pa [2] = &delete_old;
9626 mono_runtime_invoke (method, NULL, pa, NULL);
9630 ptr_to_structure (gpointer src, MonoObject *dst)
9635 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9640 mono_runtime_invoke (method, NULL, pa, NULL);
9644 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9648 MONO_ARCH_SAVE_REGS;
9650 MONO_CHECK_ARG_NULL (src);
9651 MONO_CHECK_ARG_NULL (dst);
9653 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9655 if (t->type == MONO_TYPE_VALUETYPE) {
9659 tmp = g_strdup_printf ("Destination is a boxed value type.");
9660 exc = mono_get_exception_argument ("dst", tmp);
9663 mono_raise_exception (exc);
9667 ptr_to_structure (src, dst);
9671 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
9673 MonoDomain *domain = mono_domain_get ();
9676 MONO_ARCH_SAVE_REGS;
9678 MONO_CHECK_ARG_NULL (src);
9679 MONO_CHECK_ARG_NULL (type);
9681 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
9683 ptr_to_structure (src, res);
9689 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
9691 MonoMarshalType *info;
9694 int match_index = -1;
9696 MONO_ARCH_SAVE_REGS;
9698 MONO_CHECK_ARG_NULL (type);
9699 MONO_CHECK_ARG_NULL (field_name);
9701 fname = mono_string_to_utf8 (field_name);
9702 klass = mono_class_from_mono_type (type->type);
9704 while (klass && match_index == -1) {
9705 MonoClassField* field;
9707 gpointer iter = NULL;
9708 while ((field = mono_class_get_fields (klass, &iter))) {
9709 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9711 if (!strcmp (fname, mono_field_get_name (field))) {
9718 if (match_index == -1)
9719 klass = klass->parent;
9724 if(match_index == -1) {
9728 /* Get back original class instance */
9729 klass = mono_class_from_mono_type (type->type);
9731 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9732 exc = mono_get_exception_argument ("fieldName", tmp);
9735 mono_raise_exception ((MonoException*)exc);
9738 info = mono_marshal_load_type_info (klass);
9739 return info->fields [match_index].offset;
9743 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9745 #ifdef PLATFORM_WIN32
9748 tres = mono_string_to_utf8 (string);
9752 len = strlen (tres) + 1;
9753 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
9754 memcpy (ret, tres, len);
9759 return mono_string_to_utf8 (string);
9764 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9766 MONO_ARCH_SAVE_REGS;
9771 #ifdef PLATFORM_WIN32
9772 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
9773 ((mono_string_length (string) + 1) * 2);
9775 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9777 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9778 res [mono_string_length (string)] = 0;
9784 mono_struct_delete_old (MonoClass *klass, char *ptr)
9786 MonoMarshalType *info;
9789 info = mono_marshal_load_type_info (klass);
9791 for (i = 0; i < info->num_fields; i++) {
9792 MonoMarshalNative ntype;
9793 MonoMarshalConv conv;
9794 MonoType *ftype = info->fields [i].field->type;
9797 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9800 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9801 klass->unicode, &conv);
9803 cpos = ptr + info->fields [i].offset;
9806 case MONO_MARSHAL_CONV_NONE:
9807 if (MONO_TYPE_ISSTRUCT (ftype)) {
9808 mono_struct_delete_old (ftype->data.klass, cpos);
9812 case MONO_MARSHAL_CONV_STR_LPWSTR:
9813 /* We assume this field points inside a MonoString */
9815 case MONO_MARSHAL_CONV_STR_LPTSTR:
9816 #ifdef PLATFORM_WIN32
9817 /* We assume this field points inside a MonoString
9821 case MONO_MARSHAL_CONV_STR_LPSTR:
9822 case MONO_MARSHAL_CONV_STR_BSTR:
9823 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9824 case MONO_MARSHAL_CONV_STR_TBSTR:
9825 mono_marshal_free (*(gpointer *)cpos);
9835 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9839 MONO_ARCH_SAVE_REGS;
9841 MONO_CHECK_ARG_NULL (src);
9842 MONO_CHECK_ARG_NULL (type);
9844 klass = mono_class_from_mono_type (type->type);
9846 mono_struct_delete_old (klass, (char *)src);
9850 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9854 MONO_ARCH_SAVE_REGS;
9856 if ((gulong)size == 0)
9857 /* This returns a valid pointer for size 0 on MS.NET */
9860 #ifdef PLATFORM_WIN32
9861 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
9863 res = g_try_malloc ((gulong)size);
9866 mono_gc_out_of_memory ((gulong)size);
9872 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
9877 mono_gc_out_of_memory ((gulong)size);
9881 #ifdef PLATFORM_WIN32
9882 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
9884 res = g_try_realloc (ptr, (gulong)size);
9887 mono_gc_out_of_memory ((gulong)size);
9893 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9895 MONO_ARCH_SAVE_REGS;
9897 #ifdef PLATFORM_WIN32
9905 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9907 MONO_ARCH_SAVE_REGS;
9909 #ifdef PLATFORM_WIN32
9910 return CoTaskMemAlloc (size);
9912 return g_try_malloc ((gulong)size);
9917 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9919 MONO_ARCH_SAVE_REGS;
9921 #ifdef PLATFORM_WIN32
9922 CoTaskMemFree (ptr);
9929 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
9931 MONO_ARCH_SAVE_REGS;
9933 #ifdef PLATFORM_WIN32
9934 return CoTaskMemRealloc (ptr, size);
9936 return g_try_realloc (ptr, (gulong)size);
9941 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9943 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9947 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9949 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9953 * mono_marshal_is_loading_type_info:
9955 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
9959 mono_marshal_is_loading_type_info (MonoClass *klass)
9961 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
9963 return g_slist_find (loads_list, klass) != NULL;
9967 * mono_marshal_load_type_info:
9969 * Initialize klass->marshal_info using information from metadata. This function can
9970 * recursively call itself, and the caller is responsible to avoid that by calling
9971 * mono_marshal_is_loading_type_info () beforehand.
9973 * LOCKING: Acquires the loader lock.
9976 mono_marshal_load_type_info (MonoClass* klass)
9979 guint32 native_size = 0, min_align = 1;
9980 MonoMarshalType *info;
9981 MonoClassField* field;
9986 g_assert (klass != NULL);
9988 if (klass->marshal_info)
9989 return klass->marshal_info;
9992 mono_class_init (klass);
9994 mono_loader_lock ();
9996 if (klass->marshal_info) {
9997 mono_loader_unlock ();
9998 return klass->marshal_info;
10002 * This function can recursively call itself, so we keep the list of classes which are
10003 * under initialization in a TLS list.
10005 g_assert (!mono_marshal_is_loading_type_info (klass));
10006 loads_list = TlsGetValue (load_type_info_tls_id);
10007 loads_list = g_slist_prepend (loads_list, klass);
10008 TlsSetValue (load_type_info_tls_id, loads_list);
10011 while ((field = mono_class_get_fields (klass, &iter))) {
10012 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10014 if (mono_field_is_deleted (field))
10019 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10021 /* The mempool is protected by the loader lock */
10022 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10023 info->num_fields = count;
10025 /* Try to find a size for this type in metadata */
10026 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10028 if (klass->parent) {
10029 int parent_size = mono_class_native_size (klass->parent, NULL);
10031 /* Add parent size to real size */
10032 native_size += parent_size;
10033 info->native_size = parent_size;
10038 while ((field = mono_class_get_fields (klass, &iter))) {
10042 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10045 if (mono_field_is_deleted (field))
10047 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10048 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10049 NULL, NULL, &info->fields [j].mspec);
10051 info->fields [j].field = field;
10053 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10054 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10055 /* This field is a hack inserted by MCS to empty structures */
10060 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10061 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10062 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10063 &align, TRUE, klass->unicode);
10064 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10065 min_align = MAX (align, min_align);
10066 info->fields [j].offset = info->native_size;
10067 info->fields [j].offset += align - 1;
10068 info->fields [j].offset &= ~(align - 1);
10069 info->native_size = info->fields [j].offset + size;
10071 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10072 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10073 &align, TRUE, klass->unicode);
10074 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10075 min_align = MAX (align, min_align);
10076 info->fields [j].offset = field->offset - sizeof (MonoObject);
10077 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10083 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10084 info->native_size = MAX (native_size, info->native_size);
10087 if (info->native_size & (min_align - 1)) {
10088 info->native_size += min_align - 1;
10089 info->native_size &= ~(min_align - 1);
10092 info->min_align = min_align;
10094 /* Update the class's blittable info, if the layouts don't match */
10095 if (info->native_size != mono_class_value_size (klass, NULL))
10096 klass->blittable = FALSE;
10098 /* If this is an array type, ensure that we have element info */
10099 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10100 mono_marshal_load_type_info (klass->element_class);
10103 loads_list = TlsGetValue (load_type_info_tls_id);
10104 loads_list = g_slist_remove (loads_list, klass);
10105 TlsSetValue (load_type_info_tls_id, loads_list);
10107 /*We do double-checking locking on marshal_info */
10108 mono_memory_barrier ();
10110 klass->marshal_info = info;
10112 mono_loader_unlock ();
10114 return klass->marshal_info;
10118 * mono_class_native_size:
10121 * Returns: the native size of an object instance (when marshaled
10122 * to unmanaged code)
10125 mono_class_native_size (MonoClass *klass, guint32 *align)
10127 if (!klass->marshal_info) {
10128 if (mono_marshal_is_loading_type_info (klass)) {
10133 mono_marshal_load_type_info (klass);
10138 *align = klass->marshal_info->min_align;
10140 return klass->marshal_info->native_size;
10143 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10144 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10145 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10146 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10149 * mono_type_native_stack_size:
10150 * @t: the type to return the size it uses on the stack
10152 * Returns: the number of bytes required to hold an instance of this
10153 * type on the native stack
10156 mono_type_native_stack_size (MonoType *t, guint32 *align)
10160 g_assert (t != NULL);
10166 *align = sizeof (gpointer);
10167 return sizeof (gpointer);
10171 case MONO_TYPE_BOOLEAN:
10172 case MONO_TYPE_CHAR:
10183 case MONO_TYPE_STRING:
10184 case MONO_TYPE_OBJECT:
10185 case MONO_TYPE_CLASS:
10186 case MONO_TYPE_SZARRAY:
10187 case MONO_TYPE_PTR:
10188 case MONO_TYPE_FNPTR:
10189 case MONO_TYPE_ARRAY:
10190 *align = sizeof (gpointer);
10191 return sizeof (gpointer);
10196 *align = ALIGNMENT (gdouble);
10200 *align = ALIGNMENT (glong);
10202 case MONO_TYPE_GENERICINST:
10203 if (!mono_type_generic_inst_is_valuetype (t)) {
10204 *align = sizeof (gpointer);
10205 return sizeof (gpointer);
10208 case MONO_TYPE_TYPEDBYREF:
10209 case MONO_TYPE_VALUETYPE: {
10211 MonoClass *klass = mono_class_from_mono_type (t);
10213 if (klass->enumtype)
10214 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10216 size = mono_class_native_size (klass, align);
10217 *align = *align + 3;
10227 g_error ("type 0x%02x unknown", t->type);
10233 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10234 gboolean as_field, gboolean unicode)
10236 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10239 switch (native_type) {
10240 case MONO_NATIVE_BOOLEAN:
10243 case MONO_NATIVE_I1:
10244 case MONO_NATIVE_U1:
10247 case MONO_NATIVE_I2:
10248 case MONO_NATIVE_U2:
10249 case MONO_NATIVE_VARIANTBOOL:
10252 case MONO_NATIVE_I4:
10253 case MONO_NATIVE_U4:
10254 case MONO_NATIVE_ERROR:
10257 case MONO_NATIVE_I8:
10258 case MONO_NATIVE_U8:
10259 *align = ALIGNMENT(guint64);
10261 case MONO_NATIVE_R4:
10264 case MONO_NATIVE_R8:
10265 *align = ALIGNMENT(double);
10267 case MONO_NATIVE_INT:
10268 case MONO_NATIVE_UINT:
10269 case MONO_NATIVE_LPSTR:
10270 case MONO_NATIVE_LPWSTR:
10271 case MONO_NATIVE_LPTSTR:
10272 case MONO_NATIVE_BSTR:
10273 case MONO_NATIVE_ANSIBSTR:
10274 case MONO_NATIVE_TBSTR:
10275 case MONO_NATIVE_LPARRAY:
10276 case MONO_NATIVE_SAFEARRAY:
10277 case MONO_NATIVE_IUNKNOWN:
10278 case MONO_NATIVE_IDISPATCH:
10279 case MONO_NATIVE_INTERFACE:
10280 case MONO_NATIVE_ASANY:
10281 case MONO_NATIVE_FUNC:
10282 case MONO_NATIVE_LPSTRUCT:
10283 *align = ALIGNMENT(gpointer);
10284 return sizeof (gpointer);
10285 case MONO_NATIVE_STRUCT:
10286 klass = mono_class_from_mono_type (type);
10287 if (klass == mono_defaults.object_class &&
10288 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10292 return mono_class_native_size (klass, align);
10293 case MONO_NATIVE_BYVALTSTR: {
10294 int esize = unicode ? 2: 1;
10297 return mspec->data.array_data.num_elem * esize;
10299 case MONO_NATIVE_BYVALARRAY: {
10300 // FIXME: Have to consider ArraySubType
10302 klass = mono_class_from_mono_type (type);
10303 if (klass->element_class == mono_defaults.char_class) {
10304 esize = unicode ? 2 : 1;
10307 esize = mono_class_native_size (klass->element_class, align);
10310 return mspec->data.array_data.num_elem * esize;
10312 case MONO_NATIVE_CUSTOM:
10313 *align = sizeof (gpointer);
10314 return sizeof (gpointer);
10316 case MONO_NATIVE_CURRENCY:
10317 case MONO_NATIVE_VBBYREFSTR:
10319 g_error ("native type %02x not implemented", native_type);
10322 g_assert_not_reached ();
10327 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10335 t = &o->vtable->klass->byval_arg;
10339 case MONO_TYPE_PTR:
10342 case MONO_TYPE_BOOLEAN:
10345 case MONO_TYPE_CHAR:
10350 return mono_object_unbox (o);
10352 case MONO_TYPE_STRING:
10353 switch (string_encoding) {
10354 case MONO_NATIVE_LPWSTR:
10355 return mono_string_to_utf16 ((MonoString*)o);
10357 case MONO_NATIVE_LPSTR:
10358 return mono_string_to_lpstr ((MonoString*)o);
10361 g_warning ("marshaling conversion %d not implemented", string_encoding);
10362 g_assert_not_reached ();
10365 case MONO_TYPE_CLASS:
10366 case MONO_TYPE_VALUETYPE: {
10367 MonoMethod *method;
10370 MonoBoolean delete_old = FALSE;
10372 klass = t->data.klass;
10374 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10377 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10378 klass->blittable || klass->enumtype))
10379 return mono_object_unbox (o);
10381 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10383 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10384 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10388 pa [2] = &delete_old;
10390 mono_runtime_invoke (method, NULL, pa, NULL);
10397 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10403 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10411 t = &o->vtable->klass->byval_arg;
10413 case MONO_TYPE_STRING:
10414 switch (string_encoding) {
10415 case MONO_NATIVE_LPWSTR:
10416 case MONO_NATIVE_LPSTR:
10417 mono_marshal_free (ptr);
10420 g_warning ("marshaling conversion %d not implemented", string_encoding);
10421 g_assert_not_reached ();
10424 case MONO_TYPE_CLASS:
10425 case MONO_TYPE_VALUETYPE: {
10426 klass = t->data.klass;
10428 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10429 klass->blittable || klass->enumtype))
10432 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10433 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10439 mono_runtime_invoke (method, NULL, pa, NULL);
10442 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10443 mono_struct_delete_old (klass, ptr);
10446 mono_marshal_free (ptr);
10455 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10457 MonoMethodSignature *sig, *csig;
10458 MonoMethodBuilder *mb;
10462 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10463 mb->method->slot = -1;
10465 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10466 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10468 sig = mono_method_signature (method);
10469 csig = signature_dup (method->klass->image, sig);
10470 csig->generic_param_count = 0;
10472 mono_mb_emit_ldarg (mb, 0);
10473 for (i = 0; i < csig->param_count; i++)
10474 mono_mb_emit_ldarg (mb, i + 1);
10475 mono_mb_emit_managed_call (mb, method, NULL);
10476 mono_mb_emit_byte (mb, CEE_RET);
10478 /* We can corlib internal methods */
10479 mb->skip_visibility = TRUE;
10481 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10489 * The mono_win32_compat_* functions are implementations of inline
10490 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10491 * although not exported by kernel32.
10493 * We map the appropiate kernel32 entries to these functions using
10494 * dllmaps declared in the global etc/mono/config.
10498 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10500 if (!dest || !source)
10503 memcpy (dest, source, length);
10507 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10509 memset (dest, fill, length);
10513 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10515 if (!dest || !source)
10518 memmove (dest, source, length);
10522 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10524 memset (dest, 0, length);
10528 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10533 for (i = 0; i < len; ++i)
10537 g_assert (i < len);
10540 while (byte && !(byte & 1))
10542 g_assert (byte == 1);
10545 *bitmask = buf [i];
10549 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10551 MonoMethodBuilder *mb;
10552 MonoMethodSignature *sig, *csig;
10553 MonoExceptionClause *clause;
10558 int i, param_count, sig_size, pos_leave;
10562 klass = method->klass;
10563 image = method->klass->image;
10564 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10566 if ((res = mono_marshal_find_in_cache (cache, method)))
10569 sig = mono_method_signature (method);
10570 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10572 /* add "this" and exception param */
10573 param_count = sig->param_count + sig->hasthis + 1;
10575 /* dup & extend signature */
10576 csig = mono_metadata_signature_alloc (image, param_count);
10577 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10578 memcpy (csig, sig, sig_size);
10579 csig->param_count = param_count;
10582 csig->call_convention = MONO_CALL_DEFAULT;
10584 if (sig->hasthis) {
10586 csig->params [0] = &klass->byval_arg;
10587 /* move params up by one */
10588 for (i = 0; i < sig->param_count; i++)
10589 csig->params [i + 1] = sig->params [i];
10592 /* setup exception param as byref+[out] */
10593 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10594 &mono_defaults.exception_class->byval_arg);
10595 csig->params [param_count - 1]->byref = 1;
10596 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10598 /* convert struct return to object */
10599 if (MONO_TYPE_ISSTRUCT (sig->ret))
10600 csig->ret = &mono_defaults.object_class->byval_arg;
10602 /* local 0 (temp for exception object) */
10603 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10605 /* local 1 (temp for result) */
10606 if (!MONO_TYPE_IS_VOID (sig->ret))
10607 mono_mb_add_local (mb, sig->ret);
10609 /* clear exception arg */
10610 mono_mb_emit_ldarg (mb, param_count - 1);
10611 mono_mb_emit_byte (mb, CEE_LDNULL);
10612 mono_mb_emit_byte (mb, CEE_STIND_REF);
10615 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10616 clause->try_offset = mono_mb_get_label (mb);
10618 /* push method's args */
10619 for (i = 0; i < param_count - 1; i++) {
10623 mono_mb_emit_ldarg (mb, i);
10625 /* get the byval type of the param */
10626 klass = mono_class_from_mono_type (csig->params [i]);
10627 type = &klass->byval_arg;
10629 /* unbox struct args */
10630 if (MONO_TYPE_ISSTRUCT (type)) {
10631 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10633 /* byref args & and the "this" arg must remain a ptr.
10634 Otherwise make a copy of the value type */
10635 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10636 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10638 csig->params [i] = &mono_defaults.object_class->byval_arg;
10643 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10644 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10646 mono_mb_emit_op (mb, CEE_CALL, method);
10648 /* save result at local 1 */
10649 if (!MONO_TYPE_IS_VOID (sig->ret))
10650 mono_mb_emit_stloc (mb, 1);
10652 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
10655 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
10656 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10657 clause->data.catch_class = mono_defaults.object_class;
10659 clause->handler_offset = mono_mb_get_label (mb);
10661 /* store exception at local 0 */
10662 mono_mb_emit_stloc (mb, 0);
10663 mono_mb_emit_ldarg (mb, param_count - 1);
10664 mono_mb_emit_ldloc (mb, 0);
10665 mono_mb_emit_byte (mb, CEE_STIND_REF);
10666 mono_mb_emit_branch (mb, CEE_LEAVE);
10668 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
10670 mono_mb_set_clauses (mb, 1, clause);
10672 mono_mb_patch_branch (mb, pos_leave);
10675 if (!MONO_TYPE_IS_VOID (sig->ret)) {
10676 mono_mb_emit_ldloc (mb, 1);
10678 /* box the return value */
10679 if (MONO_TYPE_ISSTRUCT (sig->ret))
10680 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
10683 mono_mb_emit_byte (mb, CEE_RET);
10685 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
10692 * mono_marshal_free_dynamic_wrappers:
10694 * Free wrappers of the dynamic method METHOD.
10697 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
10699 g_assert (method->dynamic);
10701 mono_marshal_lock ();
10703 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10704 * they could be shared with other methods ?
10706 if (method->klass->image->runtime_invoke_direct_cache)
10707 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10708 mono_marshal_unlock ();
10712 * mono_marshal_free_inflated_wrappers:
10714 * Free wrappers of the inflated method METHOD.
10718 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
10720 SignatureMethodPair *pair = (SignatureMethodPair*)key;
10721 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
10723 return mono_metadata_signature_equal (pair->sig, sig);
10727 mono_marshal_free_inflated_wrappers (MonoMethod *method)
10729 MonoMethodSignature *sig = method->signature;
10731 g_assert (method->is_inflated);
10733 /* Ignore calls occuring late during cleanup. */
10734 if (!marshal_mutex_initialized)
10737 mono_marshal_lock ();
10739 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10740 * they could be shared with other methods ?
10744 * indexed by MonoMethodSignature
10746 /* FIXME: This could remove unrelated wrappers as well */
10747 if (sig && method->klass->image->delegate_begin_invoke_cache)
10748 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
10749 if (sig && method->klass->image->delegate_end_invoke_cache)
10750 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
10751 if (sig && method->klass->image->delegate_invoke_cache)
10752 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
10753 if (sig && method->klass->image->runtime_invoke_cache)
10754 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
10757 * indexed by SignatureMethodPair
10759 if (sig && method->klass->image->delegate_abstract_invoke_cache)
10760 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
10761 signature_method_pair_matches_signature, (gpointer)sig);
10764 * indexed by MonoMethod pointers
10766 if (method->klass->image->runtime_invoke_direct_cache)
10767 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10768 if (method->klass->image->managed_wrapper_cache)
10769 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
10770 if (method->klass->image->native_wrapper_cache)
10771 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
10772 if (method->klass->image->remoting_invoke_cache)
10773 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
10774 if (method->klass->image->synchronized_cache)
10775 g_hash_table_remove (method->klass->image->synchronized_cache, method);
10776 if (method->klass->image->unbox_wrapper_cache)
10777 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
10778 if (method->klass->image->cominterop_invoke_cache)
10779 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
10780 if (method->klass->image->cominterop_wrapper_cache)
10781 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
10782 if (method->klass->image->thunk_invoke_cache)
10783 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
10785 mono_marshal_unlock ();