2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
20 #include "metadata/marshal.h"
21 #include "metadata/method-builder.h"
22 #include "metadata/tabledefs.h"
23 #include "metadata/exception.h"
24 #include "metadata/appdomain.h"
25 #include "mono/metadata/debug-helpers.h"
26 #include "mono/metadata/threadpool.h"
27 #include "mono/metadata/threads.h"
28 #include "mono/metadata/monitor.h"
29 #include "mono/metadata/metadata-internals.h"
30 #include "mono/metadata/domain-internals.h"
31 #include "mono/metadata/gc-internal.h"
32 #include "mono/metadata/threads-types.h"
33 #include "mono/metadata/string-icalls.h"
34 #include "mono/metadata/attrdefs.h"
35 #include "mono/metadata/gc-internal.h"
36 #include "mono/metadata/cominterop.h"
37 #include "mono/utils/mono-counters.h"
41 /* #define DEBUG_RUNTIME_CODE */
43 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
47 MONO_MARSHAL_NONE, /* No marshalling needed */
48 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
49 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
50 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
51 } MonoXDomainMarshalType;
54 #include "mono/cil/opcode.def"
59 struct _MonoRemotingMethods {
61 MonoMethod *invoke_with_check;
62 MonoMethod *xdomain_invoke;
63 MonoMethod *xdomain_dispatch;
66 typedef struct _MonoRemotingMethods MonoRemotingMethods;
69 * This mutex protects the various marshalling related caches in MonoImage
70 * and a few other data structures static to this file.
71 * Note that when this lock is held it is not possible to take other runtime
72 * locks like the loader lock.
74 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
75 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
76 static CRITICAL_SECTION marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static guint32 last_error_tls_id;
81 static guint32 load_type_info_tls_id;
84 delegate_hash_table_add (MonoDelegate *d);
87 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
90 mono_struct_delete_old (MonoClass *klass, char *ptr);
93 mono_marshal_string_to_utf16 (MonoString *s);
96 mono_marshal_string_to_utf16_copy (MonoString *s);
99 mono_string_to_lpstr (MonoString *string_obj);
101 static MonoStringBuilder *
102 mono_string_utf8_to_builder2 (char *text);
104 static MonoStringBuilder *
105 mono_string_utf16_to_builder2 (gunichar2 *text);
108 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
111 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
114 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
116 static MonoAsyncResult *
117 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
120 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
123 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
126 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
129 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
132 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
134 static MonoReflectionType *
135 type_from_handle (MonoType *handle);
138 mono_marshal_set_last_error_windows (int error);
140 static void init_safe_handle (void);
142 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
143 static MonoMethod *sh_dangerous_add_ref;
144 static MonoMethod *sh_dangerous_release;
150 sh_dangerous_add_ref = mono_class_get_method_from_name (
151 mono_defaults.safehandle_class, "DangerousAddRef", 1);
152 sh_dangerous_release = mono_class_get_method_from_name (
153 mono_defaults.safehandle_class, "DangerousRelease", 0);
157 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
159 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
161 mono_register_jit_icall (func, name, sig, save);
164 static MonoMethodSignature*
165 signature_dup (MonoImage *image, MonoMethodSignature *sig)
167 MonoMethodSignature *res;
170 res = mono_metadata_signature_alloc (image, sig->param_count);
171 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
172 memcpy (res, sig, sigsize);
178 mono_signature_no_pinvoke (MonoMethod *method)
180 MonoMethodSignature *sig = mono_method_signature (method);
182 sig = signature_dup (method->klass->image, sig);
183 sig->pinvoke = FALSE;
190 mono_marshal_init (void)
192 static gboolean module_initialized = FALSE;
194 if (!module_initialized) {
195 module_initialized = TRUE;
196 InitializeCriticalSection (&marshal_mutex);
197 marshal_mutex_initialized = TRUE;
198 last_error_tls_id = TlsAlloc ();
199 load_type_info_tls_id = TlsAlloc ();
201 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
202 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
203 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
204 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
205 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
206 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
207 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
208 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
209 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
210 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
211 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
212 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
213 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
214 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
215 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
216 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
217 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
218 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
219 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
220 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
221 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
222 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
223 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
224 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
225 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
226 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
227 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
228 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
229 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
230 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
231 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
232 register_icall (g_free, "g_free", "void ptr", FALSE);
233 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
234 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
235 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
236 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
237 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
238 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
239 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
240 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
241 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
242 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
243 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
244 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
245 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
246 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
247 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
248 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
250 mono_cominterop_init ();
255 mono_marshal_cleanup (void)
257 mono_cominterop_cleanup ();
259 TlsFree (load_type_info_tls_id);
260 TlsFree (last_error_tls_id);
261 DeleteCriticalSection (&marshal_mutex);
262 marshal_mutex_initialized = FALSE;
265 MonoClass *byte_array_class;
266 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
267 static MonoMethod *method_set_context, *method_get_context;
268 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
271 mono_remoting_marshal_init (void)
275 static gboolean module_initialized = FALSE;
277 if (!module_initialized) {
278 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
279 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
280 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
281 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
283 klass = mono_defaults.real_proxy_class;
284 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
286 klass = mono_defaults.exception_class;
287 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
289 klass = mono_defaults.thread_class;
290 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
292 klass = mono_defaults.appdomain_class;
293 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
294 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
296 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
297 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
299 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
300 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
302 module_initialized = TRUE;
307 mono_delegate_to_ftnptr (MonoDelegate *delegate)
309 MonoMethod *method, *wrapper;
311 uint32_t target_handle = 0;
316 if (delegate->delegate_trampoline)
317 return delegate->delegate_trampoline;
319 klass = ((MonoObject *)delegate)->vtable->klass;
320 g_assert (klass->delegate);
322 method = delegate->method;
324 if (mono_method_signature (method)->pinvoke) {
325 const char *exc_class, *exc_arg;
328 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
330 g_assert (exc_class);
331 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
336 if (delegate->target) {
337 /* Produce a location which can be embedded in JITted code */
338 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
341 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
343 delegate->delegate_trampoline = mono_compile_method (wrapper);
345 // Add the delegate to the delegate hash table
346 delegate_hash_table_add (delegate);
348 /* when the object is collected, collect the dynamic method, too */
349 mono_object_register_finalizer ((MonoObject*)delegate);
351 return delegate->delegate_trampoline;
355 * this hash table maps from a delegate trampoline object to a weak reference
356 * of the delegate. As an optimizations with a non-moving GC we store the
357 * object pointer itself, otherwise we use a GC handle.
359 static GHashTable *delegate_hash_table;
362 delegate_hash_table_new (void) {
363 return g_hash_table_new (NULL, NULL);
367 delegate_hash_table_remove (MonoDelegate *d)
369 #ifdef HAVE_MOVING_COLLECTOR
372 mono_marshal_lock ();
373 if (delegate_hash_table == NULL)
374 delegate_hash_table = delegate_hash_table_new ();
375 #ifdef HAVE_MOVING_COLLECTOR
376 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
378 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
379 mono_marshal_unlock ();
380 #ifdef HAVE_MOVING_COLLECTOR
381 mono_gchandle_free (gchandle);
386 delegate_hash_table_add (MonoDelegate *d)
388 #ifdef HAVE_MOVING_COLLECTOR
389 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
390 guint32 old_gchandle;
392 mono_marshal_lock ();
393 if (delegate_hash_table == NULL)
394 delegate_hash_table = delegate_hash_table_new ();
395 #ifdef HAVE_MOVING_COLLECTOR
396 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
397 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
399 mono_gchandle_free (old_gchandle);
401 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
403 mono_marshal_unlock ();
407 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
409 #ifdef HAVE_MOVING_COLLECTOR
417 mono_marshal_lock ();
418 if (delegate_hash_table == NULL)
419 delegate_hash_table = delegate_hash_table_new ();
421 #ifdef HAVE_MOVING_COLLECTOR
422 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
423 mono_marshal_unlock ();
425 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
429 d = g_hash_table_lookup (delegate_hash_table, ftn);
430 mono_marshal_unlock ();
433 /* This is a native function, so construct a delegate for it */
434 static MonoClass *UnmanagedFunctionPointerAttribute;
435 MonoMethodSignature *sig;
437 MonoMarshalSpec **mspecs;
438 MonoCustomAttrInfo *cinfo;
439 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
440 MonoMethod *invoke = mono_get_delegate_invoke (klass);
441 MonoMethodPInvoke piinfo;
444 memset (&piinfo, 0, sizeof (piinfo));
445 if (!UnmanagedFunctionPointerAttribute)
446 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
448 /* The attribute is only available in Net 2.0 */
449 if (UnmanagedFunctionPointerAttribute) {
451 * The pinvoke attributes are stored in a real custom attribute so we have to
454 cinfo = mono_custom_attrs_from_class (klass);
456 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
458 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
461 mono_custom_attrs_free (cinfo);
465 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
466 mono_method_get_marshal_info (invoke, mspecs);
467 /* Freed below so don't alloc from mempool */
468 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
471 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
473 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
475 mono_metadata_free_marshal_spec (mspecs [i]);
479 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
480 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
483 if (d->object.vtable->domain != mono_domain_get ())
484 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
490 mono_delegate_free_ftnptr (MonoDelegate *delegate)
495 delegate_hash_table_remove (delegate);
497 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
499 if (!delegate->target) {
500 /* The wrapper method is shared between delegates -> no need to free it */
507 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
510 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
512 /*the target gchandle is the first entry after size and the wrapper itself.*/
513 gchandle = GPOINTER_TO_UINT (method_data [2]);
516 mono_gchandle_free (gchandle);
518 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
523 mono_array_to_savearray (MonoArray *array)
528 g_assert_not_reached ();
533 mono_array_to_lparray (MonoArray *array)
535 gpointer *nativeArray = NULL;
536 int nativeArraySize = 0;
545 klass = array->obj.vtable->klass;
547 switch (klass->element_class->byval_arg.type) {
549 g_assert_not_reached ();
552 case MONO_TYPE_CLASS:
553 nativeArraySize = array->max_length;
554 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
555 for(i = 0; i < nativeArraySize; ++i)
556 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
560 case MONO_TYPE_BOOLEAN:
573 case MONO_TYPE_VALUETYPE:
577 case MONO_TYPE_GENERICINST:
578 case MONO_TYPE_OBJECT:
579 case MONO_TYPE_ARRAY:
580 case MONO_TYPE_SZARRAY:
581 case MONO_TYPE_STRING:
583 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
584 g_assert_not_reached ();
587 return array->vector;
591 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
602 klass = array->obj.vtable->klass;
604 switch (klass->element_class->byval_arg.type) {
605 case MONO_TYPE_CLASS:
606 for(i = 0; i < array->max_length; ++i)
607 mono_marshal_free_ccw(nativeArray[i]);
615 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
617 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
619 if (elclass == mono_defaults.byte_class) {
620 GError *error = NULL;
624 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
627 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
631 g_error_free (error);
634 g_assert_not_reached ();
638 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
640 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
642 if (elclass == mono_defaults.byte_class) {
644 GError *error = NULL;
646 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
648 MonoException *exc = mono_get_exception_argument ("string", error->message);
649 g_error_free (error);
650 mono_raise_exception (exc);
653 memcpy (native_arr, as, MIN (strlen (as), elnum));
656 g_assert_not_reached ();
661 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
663 GError *error = NULL;
673 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
675 if (items_written > mono_stringbuilder_capacity (sb))
676 items_written = mono_stringbuilder_capacity (sb);
679 if (! sb->str || sb->str == sb->cached_str) {
680 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
681 sb->cached_str = NULL;
684 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
685 sb->length = items_written;
687 g_error_free (error);
693 mono_string_utf8_to_builder2 (char *text)
696 MonoStringBuilder *sb;
697 static MonoClass *string_builder_class;
698 static MonoMethod *sb_ctor;
705 if (!string_builder_class) {
706 MonoMethodDesc *desc;
708 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
709 g_assert (string_builder_class);
710 desc = mono_method_desc_new (":.ctor(int)", FALSE);
711 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
713 mono_method_desc_free (desc);
718 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
721 mono_runtime_invoke (sb_ctor, sb, args, &exc);
724 mono_string_utf8_to_builder (sb, text);
730 * FIXME: This routine does not seem to do what it seems to do
731 * the @text is never copied into the string builder
734 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
741 g_assert (mono_string_chars (sb->str) == text);
743 for (len = 0; text [len] != 0; ++len)
750 mono_string_utf16_to_builder2 (gunichar2 *text)
753 MonoStringBuilder *sb;
754 static MonoClass *string_builder_class;
755 static MonoMethod *sb_ctor;
762 if (!string_builder_class) {
763 MonoMethodDesc *desc;
765 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
766 g_assert (string_builder_class);
767 desc = mono_method_desc_new (":.ctor(int)", FALSE);
768 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
770 mono_method_desc_free (desc);
773 for (len = 0; text [len] != 0; ++len)
776 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
779 mono_runtime_invoke (sb_ctor, sb, args, &exc);
783 memcpy (mono_string_chars (sb->str), text, len * 2);
789 * mono_string_builder_to_utf8:
790 * @sb: the string builder
792 * Converts to utf8 the contents of the MonoStringBuilder.
794 * Returns: a utf8 string with the contents of the StringBuilder.
796 * The return value must be released with g_free.
799 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
801 GError *error = NULL;
802 gchar *tmp, *res = NULL;
807 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
809 * The sb could have been allocated with the default capacity and be empty.
810 * we need to alloc a buffer of the default capacity in this case.
812 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
813 sb->cached_str = NULL;
816 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
818 g_error_free (error);
819 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
821 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
822 memcpy (res, tmp, sb->length + 1);
830 * mono_string_builder_to_utf16:
831 * @sb: the string builder
833 * Converts to utf16 the contents of the MonoStringBuilder.
835 * Returns: a utf16 string with the contents of the StringBuilder.
837 * The return value must not be freed.
840 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
848 * The stringbuilder might not have ownership of this string. If this is
849 * the case, we must duplicate the string, so that we don't munge immutable
852 if (sb->str == sb->cached_str) {
854 * The sb could have been allocated with the default capacity and be empty.
855 * we need to alloc a buffer of the default capacity in this case.
857 if (sb->str->length == 0)
858 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
860 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
861 sb->cached_str = NULL;
865 *(mono_string_chars (sb->str)) = '\0';
867 return mono_string_chars (sb->str);
871 mono_string_to_lpstr (MonoString *s)
876 GError *error = NULL;
882 as = CoTaskMemAlloc (1);
887 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
889 MonoException *exc = mono_get_exception_argument ("string", error->message);
890 g_error_free (error);
891 mono_raise_exception(exc);
894 as = CoTaskMemAlloc (len + 1);
895 memcpy (as, tmp, len + 1);
900 return mono_string_to_utf8 (s);
905 mono_string_to_ansibstr (MonoString *string_obj)
907 g_error ("UnmanagedMarshal.BStr is not implemented.");
912 * mono_string_to_byvalstr:
913 * @dst: Where to store the null-terminated utf8 decoded string.
914 * @src: the MonoString to copy.
915 * @size: the maximum number of bytes to copy.
917 * Copies the MonoString pointed to by @src as a utf8 string
918 * into @dst, it copies at most @size bytes into the destination.
921 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
926 g_assert (dst != NULL);
929 memset (dst, 0, size);
933 s = mono_string_to_utf8 (src);
934 len = MIN (size, strlen (s));
937 memcpy (dst, s, len);
942 * mono_string_to_byvalwstr:
943 * @dst: Where to store the null-terminated utf16 decoded string.
944 * @src: the MonoString to copy.
945 * @size: the maximum number of bytes to copy.
947 * Copies the MonoString pointed to by @src as a utf16 string into
948 * @dst, it copies at most @size bytes into the destination (including
949 * a terminating 16-bit zero terminator).
952 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
956 g_assert (dst != NULL);
960 memset (dst, 0, size * 2);
964 len = MIN (size, (mono_string_length (src)));
965 memcpy (dst, mono_string_chars (src), size * 2);
966 if (size <= mono_string_length (src))
968 *((gunichar2 *) dst + len) = 0;
972 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
975 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
976 mono_mb_emit_byte (mb, CEE_LDIND_I);
977 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
978 mono_mb_emit_byte (mb, CEE_ADD);
979 mono_mb_emit_byte (mb, CEE_LDIND_I);
980 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
981 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
982 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
983 pos = mono_mb_emit_branch (mb, branch_code);
988 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
991 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
992 mono_mb_emit_byte (mb, CEE_LDIND_REF);
993 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
994 mono_mb_emit_byte (mb, CEE_LDIND_I4);
995 mono_mb_emit_icon (mb, -1);
996 pos = mono_mb_emit_branch (mb, branch_code);
1001 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1003 static int offset = -1;
1007 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1009 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1010 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1011 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1012 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1013 mono_mb_emit_ldflda (mb, offset);
1014 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1015 mono_mb_emit_icon (mb, mask);
1016 mono_mb_emit_byte (mb, CEE_AND);
1017 mono_mb_emit_icon (mb, 0);
1018 return mono_mb_emit_branch (mb, branch_code);
1022 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1024 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1028 mono_type_to_ldind (MonoType *type)
1034 switch (type->type) {
1036 return CEE_LDIND_I1;
1038 case MONO_TYPE_BOOLEAN:
1039 return CEE_LDIND_U1;
1041 return CEE_LDIND_I2;
1043 case MONO_TYPE_CHAR:
1044 return CEE_LDIND_U2;
1046 return CEE_LDIND_I4;
1048 return CEE_LDIND_U4;
1052 case MONO_TYPE_FNPTR:
1054 case MONO_TYPE_CLASS:
1055 case MONO_TYPE_STRING:
1056 case MONO_TYPE_OBJECT:
1057 case MONO_TYPE_SZARRAY:
1058 case MONO_TYPE_ARRAY:
1059 return CEE_LDIND_REF;
1062 return CEE_LDIND_I8;
1064 return CEE_LDIND_R4;
1066 return CEE_LDIND_R8;
1067 case MONO_TYPE_VALUETYPE:
1068 if (type->data.klass->enumtype) {
1069 type = mono_class_enum_basetype (type->data.klass);
1073 case MONO_TYPE_TYPEDBYREF:
1075 case MONO_TYPE_GENERICINST:
1076 type = &type->data.generic_class->container_class->byval_arg;
1079 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1085 mono_type_to_stind (MonoType *type)
1091 switch (type->type) {
1094 case MONO_TYPE_BOOLEAN:
1095 return CEE_STIND_I1;
1098 case MONO_TYPE_CHAR:
1099 return CEE_STIND_I2;
1102 return CEE_STIND_I4;
1106 case MONO_TYPE_FNPTR:
1108 case MONO_TYPE_CLASS:
1109 case MONO_TYPE_STRING:
1110 case MONO_TYPE_OBJECT:
1111 case MONO_TYPE_SZARRAY:
1112 case MONO_TYPE_ARRAY:
1113 return CEE_STIND_REF;
1116 return CEE_STIND_I8;
1118 return CEE_STIND_R4;
1120 return CEE_STIND_R8;
1121 case MONO_TYPE_VALUETYPE:
1122 if (type->data.klass->enumtype) {
1123 type = mono_class_enum_basetype (type->data.klass);
1127 case MONO_TYPE_TYPEDBYREF:
1129 case MONO_TYPE_GENERICINST:
1130 type = &type->data.generic_class->container_class->byval_arg;
1133 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1139 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1142 case MONO_MARSHAL_CONV_BOOL_I4:
1143 mono_mb_emit_ldloc (mb, 1);
1144 mono_mb_emit_ldloc (mb, 0);
1145 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1146 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1147 mono_mb_emit_byte (mb, 3);
1148 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1149 mono_mb_emit_byte (mb, CEE_BR_S);
1150 mono_mb_emit_byte (mb, 1);
1151 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1152 mono_mb_emit_byte (mb, CEE_STIND_I1);
1154 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1155 mono_mb_emit_ldloc (mb, 1);
1156 mono_mb_emit_ldloc (mb, 0);
1157 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1158 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1159 mono_mb_emit_byte (mb, 3);
1160 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1161 mono_mb_emit_byte (mb, CEE_BR_S);
1162 mono_mb_emit_byte (mb, 1);
1163 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1164 mono_mb_emit_byte (mb, CEE_STIND_I1);
1166 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1167 MonoClass *eklass = NULL;
1170 if (type->type == MONO_TYPE_SZARRAY) {
1171 eklass = type->data.klass;
1173 g_assert_not_reached ();
1176 esize = mono_class_native_size (eklass, NULL);
1178 /* create a new array */
1179 mono_mb_emit_ldloc (mb, 1);
1180 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1181 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1182 mono_mb_emit_byte (mb, CEE_STIND_I);
1184 if (eklass->blittable) {
1185 /* copy the elements */
1186 mono_mb_emit_ldloc (mb, 1);
1187 mono_mb_emit_byte (mb, CEE_LDIND_I);
1188 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1189 mono_mb_emit_byte (mb, CEE_ADD);
1190 mono_mb_emit_ldloc (mb, 0);
1191 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1192 mono_mb_emit_byte (mb, CEE_PREFIX1);
1193 mono_mb_emit_byte (mb, CEE_CPBLK);
1196 int array_var, src_var, dst_var, index_var;
1197 guint32 label2, label3;
1199 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1200 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1201 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1204 mono_mb_emit_ldloc (mb, 1);
1205 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1206 mono_mb_emit_stloc (mb, array_var);
1208 /* save the old src pointer */
1209 mono_mb_emit_ldloc (mb, 0);
1210 mono_mb_emit_stloc (mb, src_var);
1211 /* save the old dst pointer */
1212 mono_mb_emit_ldloc (mb, 1);
1213 mono_mb_emit_stloc (mb, dst_var);
1215 /* Emit marshalling loop */
1216 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1217 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1218 mono_mb_emit_stloc (mb, index_var);
1221 label2 = mono_mb_get_label (mb);
1222 mono_mb_emit_ldloc (mb, index_var);
1223 mono_mb_emit_ldloc (mb, array_var);
1224 mono_mb_emit_byte (mb, CEE_LDLEN);
1225 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1227 /* src is already set */
1230 mono_mb_emit_ldloc (mb, array_var);
1231 mono_mb_emit_ldloc (mb, index_var);
1232 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1233 mono_mb_emit_stloc (mb, 1);
1235 /* Do the conversion */
1236 emit_struct_conv (mb, eklass, TRUE);
1239 mono_mb_emit_add_to_local (mb, index_var, 1);
1241 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1243 mono_mb_patch_branch (mb, label3);
1245 /* restore the old src pointer */
1246 mono_mb_emit_ldloc (mb, src_var);
1247 mono_mb_emit_stloc (mb, 0);
1248 /* restore the old dst pointer */
1249 mono_mb_emit_ldloc (mb, dst_var);
1250 mono_mb_emit_stloc (mb, 1);
1254 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1255 MonoClass *eclass = mono_defaults.char_class;
1257 /* create a new array */
1258 mono_mb_emit_ldloc (mb, 1);
1259 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1260 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1261 mono_mb_emit_byte (mb, CEE_STIND_REF);
1263 mono_mb_emit_ldloc (mb, 1);
1264 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1265 mono_mb_emit_ldloc (mb, 0);
1266 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1267 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1268 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1271 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1272 mono_mb_emit_ldloc (mb, 1);
1273 mono_mb_emit_ldloc (mb, 0);
1274 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1275 mono_mb_emit_byte (mb, CEE_STIND_REF);
1277 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1278 mono_mb_emit_ldloc (mb, 1);
1279 mono_mb_emit_ldloc (mb, 0);
1280 mono_mb_emit_icall (mb, mono_string_from_utf16);
1281 mono_mb_emit_byte (mb, CEE_STIND_REF);
1283 case MONO_MARSHAL_CONV_STR_LPTSTR:
1284 mono_mb_emit_ldloc (mb, 1);
1285 mono_mb_emit_ldloc (mb, 0);
1286 mono_mb_emit_byte (mb, CEE_LDIND_I);
1288 mono_mb_emit_icall (mb, mono_string_from_utf16);
1290 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1292 mono_mb_emit_byte (mb, CEE_STIND_REF);
1294 case MONO_MARSHAL_CONV_STR_LPSTR:
1295 mono_mb_emit_ldloc (mb, 1);
1296 mono_mb_emit_ldloc (mb, 0);
1297 mono_mb_emit_byte (mb, CEE_LDIND_I);
1298 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1299 mono_mb_emit_byte (mb, CEE_STIND_REF);
1301 case MONO_MARSHAL_CONV_STR_LPWSTR:
1302 mono_mb_emit_ldloc (mb, 1);
1303 mono_mb_emit_ldloc (mb, 0);
1304 mono_mb_emit_byte (mb, CEE_LDIND_I);
1305 mono_mb_emit_icall (mb, mono_string_from_utf16);
1306 mono_mb_emit_byte (mb, CEE_STIND_REF);
1308 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1309 MonoClass *klass = mono_class_from_mono_type (type);
1310 int src_var, dst_var;
1312 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1313 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1315 /* *dst = new object */
1316 mono_mb_emit_ldloc (mb, 1);
1317 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1318 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1319 mono_mb_emit_byte (mb, CEE_STIND_REF);
1321 /* save the old src pointer */
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_stloc (mb, src_var);
1324 /* save the old dst pointer */
1325 mono_mb_emit_ldloc (mb, 1);
1326 mono_mb_emit_stloc (mb, dst_var);
1328 /* dst = pointer to newly created object data */
1329 mono_mb_emit_ldloc (mb, 1);
1330 mono_mb_emit_byte (mb, CEE_LDIND_I);
1331 mono_mb_emit_icon (mb, sizeof (MonoObject));
1332 mono_mb_emit_byte (mb, CEE_ADD);
1333 mono_mb_emit_stloc (mb, 1);
1335 emit_struct_conv (mb, klass, TRUE);
1337 /* restore the old src pointer */
1338 mono_mb_emit_ldloc (mb, src_var);
1339 mono_mb_emit_stloc (mb, 0);
1340 /* restore the old dst pointer */
1341 mono_mb_emit_ldloc (mb, dst_var);
1342 mono_mb_emit_stloc (mb, 1);
1345 case MONO_MARSHAL_CONV_DEL_FTN: {
1346 MonoClass *klass = mono_class_from_mono_type (type);
1348 mono_mb_emit_ldloc (mb, 1);
1349 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1350 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_byte (mb, CEE_LDIND_I);
1353 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1354 mono_mb_emit_byte (mb, CEE_STIND_REF);
1357 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1358 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1362 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1363 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1364 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1365 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1367 #endif /* DISABLE_COM */
1369 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1371 * Passing SafeHandles as ref does not allow the unmanaged code
1372 * to change the SafeHandle value. If the value is changed,
1373 * we should issue a diagnostic exception (NotSupportedException)
1374 * that informs the user that changes to handles in unmanaged code
1377 * Since we currently have no access to the original
1378 * SafeHandle that was used during the marshalling,
1379 * for now we just ignore this, and ignore/discard any
1380 * changes that might have happened to the handle.
1385 case MONO_MARSHAL_CONV_HANDLEREF: {
1387 * Passing HandleRefs in a struct that is ref()ed does not
1388 * copy the values back to the HandleRef
1393 case MONO_MARSHAL_CONV_STR_BSTR:
1394 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1395 case MONO_MARSHAL_CONV_STR_TBSTR:
1396 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1398 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1400 mono_mb_emit_exception_marshal_directive (mb, msg);
1408 conv_to_icall (MonoMarshalConv conv)
1411 case MONO_MARSHAL_CONV_STR_LPWSTR:
1412 return mono_marshal_string_to_utf16;
1413 case MONO_MARSHAL_CONV_LPWSTR_STR:
1414 return mono_string_from_utf16;
1415 case MONO_MARSHAL_CONV_LPSTR_STR:
1416 return mono_string_new_wrapper;
1417 case MONO_MARSHAL_CONV_STR_LPTSTR:
1419 return mono_marshal_string_to_utf16;
1421 return mono_string_to_lpstr;
1423 case MONO_MARSHAL_CONV_STR_LPSTR:
1424 return mono_string_to_lpstr;
1425 case MONO_MARSHAL_CONV_STR_BSTR:
1426 return mono_string_to_bstr;
1427 case MONO_MARSHAL_CONV_BSTR_STR:
1428 return mono_string_from_bstr;
1429 case MONO_MARSHAL_CONV_STR_TBSTR:
1430 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1431 return mono_string_to_ansibstr;
1432 case MONO_MARSHAL_CONV_SB_LPSTR:
1433 return mono_string_builder_to_utf8;
1434 case MONO_MARSHAL_CONV_SB_LPTSTR:
1436 return mono_string_builder_to_utf16;
1438 return mono_string_builder_to_utf8;
1440 case MONO_MARSHAL_CONV_SB_LPWSTR:
1441 return mono_string_builder_to_utf16;
1442 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1443 return mono_array_to_savearray;
1444 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1445 return mono_array_to_lparray;
1446 case MONO_MARSHAL_FREE_LPARRAY:
1447 return mono_free_lparray;
1448 case MONO_MARSHAL_CONV_DEL_FTN:
1449 return mono_delegate_to_ftnptr;
1450 case MONO_MARSHAL_CONV_FTN_DEL:
1451 return mono_ftnptr_to_delegate;
1452 case MONO_MARSHAL_CONV_LPSTR_SB:
1453 return mono_string_utf8_to_builder;
1454 case MONO_MARSHAL_CONV_LPTSTR_SB:
1456 return mono_string_utf16_to_builder;
1458 return mono_string_utf8_to_builder;
1460 case MONO_MARSHAL_CONV_LPWSTR_SB:
1461 return mono_string_utf16_to_builder;
1462 case MONO_MARSHAL_FREE_ARRAY:
1463 return mono_marshal_free_array;
1464 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1465 return mono_string_to_byvalstr;
1466 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1467 return mono_string_to_byvalwstr;
1469 g_assert_not_reached ();
1476 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1481 case MONO_MARSHAL_CONV_BOOL_I4:
1482 mono_mb_emit_ldloc (mb, 1);
1483 mono_mb_emit_ldloc (mb, 0);
1484 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1485 mono_mb_emit_byte (mb, CEE_STIND_I4);
1487 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1488 mono_mb_emit_ldloc (mb, 1);
1489 mono_mb_emit_ldloc (mb, 0);
1490 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1491 mono_mb_emit_byte (mb, CEE_NEG);
1492 mono_mb_emit_byte (mb, CEE_STIND_I2);
1494 case MONO_MARSHAL_CONV_STR_LPWSTR:
1495 case MONO_MARSHAL_CONV_STR_LPSTR:
1496 case MONO_MARSHAL_CONV_STR_LPTSTR:
1497 case MONO_MARSHAL_CONV_STR_BSTR:
1498 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1499 case MONO_MARSHAL_CONV_STR_TBSTR: {
1502 /* free space if free == true */
1503 mono_mb_emit_ldloc (mb, 2);
1504 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_byte (mb, CEE_LDIND_I);
1507 mono_mb_emit_icall (mb, g_free);
1508 mono_mb_patch_short_branch (mb, pos);
1510 mono_mb_emit_ldloc (mb, 1);
1511 mono_mb_emit_ldloc (mb, 0);
1512 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1513 mono_mb_emit_icall (mb, conv_to_icall (conv));
1514 mono_mb_emit_byte (mb, CEE_STIND_I);
1517 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1518 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1519 case MONO_MARSHAL_CONV_DEL_FTN:
1520 mono_mb_emit_ldloc (mb, 1);
1521 mono_mb_emit_ldloc (mb, 0);
1522 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1523 mono_mb_emit_icall (mb, conv_to_icall (conv));
1524 mono_mb_emit_byte (mb, CEE_STIND_I);
1526 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1527 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1530 mono_mb_emit_ldloc (mb, 1); /* dst */
1531 mono_mb_emit_ldloc (mb, 0);
1532 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1533 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1534 mono_mb_emit_icall (mb, conv_to_icall (conv));
1537 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1538 MonoClass *eklass = NULL;
1541 if (type->type == MONO_TYPE_SZARRAY) {
1542 eklass = type->data.klass;
1544 g_assert_not_reached ();
1547 if (eklass->valuetype)
1548 esize = mono_class_native_size (eklass, NULL);
1550 esize = sizeof (gpointer);
1552 mono_mb_emit_ldloc (mb, 0);
1553 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1554 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1556 if (eklass->blittable) {
1557 mono_mb_emit_ldloc (mb, 1);
1558 mono_mb_emit_ldloc (mb, 0);
1559 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1560 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1561 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1562 mono_mb_emit_byte (mb, CEE_PREFIX1);
1563 mono_mb_emit_byte (mb, CEE_CPBLK);
1565 int array_var, src_var, dst_var, index_var;
1566 guint32 label2, label3;
1568 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1569 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1570 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1573 mono_mb_emit_ldloc (mb, 0);
1574 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1575 mono_mb_emit_stloc (mb, array_var);
1577 /* save the old src pointer */
1578 mono_mb_emit_ldloc (mb, 0);
1579 mono_mb_emit_stloc (mb, src_var);
1580 /* save the old dst pointer */
1581 mono_mb_emit_ldloc (mb, 1);
1582 mono_mb_emit_stloc (mb, dst_var);
1584 /* Emit marshalling loop */
1585 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1586 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1587 mono_mb_emit_stloc (mb, index_var);
1590 label2 = mono_mb_get_label (mb);
1591 mono_mb_emit_ldloc (mb, index_var);
1592 mono_mb_emit_ldloc (mb, array_var);
1593 mono_mb_emit_byte (mb, CEE_LDLEN);
1594 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1597 mono_mb_emit_ldloc (mb, array_var);
1598 mono_mb_emit_ldloc (mb, index_var);
1599 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1600 mono_mb_emit_stloc (mb, 0);
1602 /* dst is already set */
1604 /* Do the conversion */
1605 emit_struct_conv (mb, eklass, FALSE);
1608 mono_mb_emit_add_to_local (mb, index_var, 1);
1610 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1612 mono_mb_patch_branch (mb, label3);
1614 /* restore the old src pointer */
1615 mono_mb_emit_ldloc (mb, src_var);
1616 mono_mb_emit_stloc (mb, 0);
1617 /* restore the old dst pointer */
1618 mono_mb_emit_ldloc (mb, dst_var);
1619 mono_mb_emit_stloc (mb, 1);
1622 mono_mb_patch_branch (mb, pos);
1625 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1626 mono_mb_emit_ldloc (mb, 0);
1627 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1628 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1630 mono_mb_emit_ldloc (mb, 1);
1631 mono_mb_emit_ldloc (mb, 0);
1632 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1633 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1634 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1635 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1636 mono_mb_patch_short_branch (mb, pos);
1639 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1640 int src_var, dst_var;
1642 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1643 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1645 mono_mb_emit_ldloc (mb, 0);
1646 mono_mb_emit_byte (mb, CEE_LDIND_I);
1647 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1649 /* save the old src pointer */
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_stloc (mb, src_var);
1652 /* save the old dst pointer */
1653 mono_mb_emit_ldloc (mb, 1);
1654 mono_mb_emit_stloc (mb, dst_var);
1656 /* src = pointer to object data */
1657 mono_mb_emit_ldloc (mb, 0);
1658 mono_mb_emit_byte (mb, CEE_LDIND_I);
1659 mono_mb_emit_icon (mb, sizeof (MonoObject));
1660 mono_mb_emit_byte (mb, CEE_ADD);
1661 mono_mb_emit_stloc (mb, 0);
1663 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1665 /* restore the old src pointer */
1666 mono_mb_emit_ldloc (mb, src_var);
1667 mono_mb_emit_stloc (mb, 0);
1668 /* restore the old dst pointer */
1669 mono_mb_emit_ldloc (mb, dst_var);
1670 mono_mb_emit_stloc (mb, 1);
1672 mono_mb_patch_branch (mb, pos);
1677 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1678 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1679 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1680 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1682 #endif /* DISABLE_COM */
1684 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1685 int dar_release_slot, pos;
1687 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1690 * The following is ifdefed-out, because I have no way of doing the
1691 * DangerousRelease when destroying the structure
1694 /* set release = false */
1695 mono_mb_emit_icon (mb, 0);
1696 mono_mb_emit_stloc (mb, dar_release_slot);
1697 if (!sh_dangerous_add_ref)
1698 init_safe_handle ();
1700 /* safehandle.DangerousAddRef (ref release) */
1701 mono_mb_emit_ldloc (mb, 0); /* the source */
1702 mono_mb_emit_byte (mb, CEE_LDIND_I);
1703 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1704 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1706 mono_mb_emit_ldloc (mb, 0);
1707 mono_mb_emit_byte (mb, CEE_LDIND_I);
1708 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1709 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1710 mono_mb_patch_branch (mb, pos);
1712 /* Pull the handle field from SafeHandle */
1713 mono_mb_emit_ldloc (mb, 1);
1714 mono_mb_emit_ldloc (mb, 0);
1715 mono_mb_emit_byte (mb, CEE_LDIND_I);
1716 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 mono_mb_emit_byte (mb, CEE_STIND_I);
1722 case MONO_MARSHAL_CONV_HANDLEREF: {
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1726 mono_mb_emit_byte (mb, CEE_ADD);
1727 mono_mb_emit_byte (mb, CEE_LDIND_I);
1728 mono_mb_emit_byte (mb, CEE_STIND_I);
1733 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1734 MonoException *exc = mono_get_exception_not_implemented (msg);
1735 g_warning ("%s", msg);
1737 mono_raise_exception (exc);
1743 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1745 MonoMarshalType *info;
1749 emit_struct_conv(mb, klass->parent, to_object);
1751 info = mono_marshal_load_type_info (klass);
1753 if (info->native_size == 0)
1756 if (klass->blittable) {
1757 int msize = mono_class_value_size (klass, NULL);
1758 g_assert (msize == info->native_size);
1759 mono_mb_emit_ldloc (mb, 1);
1760 mono_mb_emit_ldloc (mb, 0);
1761 mono_mb_emit_icon (mb, msize);
1762 mono_mb_emit_byte (mb, CEE_PREFIX1);
1763 mono_mb_emit_byte (mb, CEE_CPBLK);
1765 mono_mb_emit_add_to_local (mb, 0, msize);
1766 mono_mb_emit_add_to_local (mb, 1, msize);
1770 if (klass != mono_defaults.safehandle_class) {
1771 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1772 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1773 mono_type_full_name (&klass->byval_arg));
1774 mono_mb_emit_exception_marshal_directive (mb, msg);
1779 for (i = 0; i < info->num_fields; i++) {
1780 MonoMarshalNative ntype;
1781 MonoMarshalConv conv;
1782 MonoType *ftype = info->fields [i].field->type;
1785 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1787 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1790 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1793 msize = klass->instance_size - info->fields [i].field->offset;
1794 usize = info->native_size - info->fields [i].offset;
1796 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1797 usize = info->fields [i + 1].offset - info->fields [i].offset;
1800 if (klass != mono_defaults.safehandle_class){
1802 * FIXME: Should really check for usize==0 and msize>0, but we apply
1803 * the layout to the managed structure as well.
1806 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1807 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1808 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1809 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1810 "reference field at the same offset as another field.",
1811 mono_type_full_name (&klass->byval_arg));
1816 case MONO_MARSHAL_CONV_NONE: {
1819 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1820 ftype->type == MONO_TYPE_U) {
1821 mono_mb_emit_ldloc (mb, 1);
1822 mono_mb_emit_ldloc (mb, 0);
1823 mono_mb_emit_byte (mb, CEE_LDIND_I);
1824 mono_mb_emit_byte (mb, CEE_STIND_I);
1835 case MONO_TYPE_BOOLEAN:
1838 case MONO_TYPE_CHAR:
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1847 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1849 case MONO_TYPE_VALUETYPE: {
1850 int src_var, dst_var;
1852 if (ftype->data.klass->enumtype) {
1853 ftype = mono_class_enum_basetype (ftype->data.klass);
1857 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1858 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1860 /* save the old src pointer */
1861 mono_mb_emit_ldloc (mb, 0);
1862 mono_mb_emit_stloc (mb, src_var);
1863 /* save the old dst pointer */
1864 mono_mb_emit_ldloc (mb, 1);
1865 mono_mb_emit_stloc (mb, dst_var);
1867 emit_struct_conv (mb, ftype->data.klass, to_object);
1869 /* restore the old src pointer */
1870 mono_mb_emit_ldloc (mb, src_var);
1871 mono_mb_emit_stloc (mb, 0);
1872 /* restore the old dst pointer */
1873 mono_mb_emit_ldloc (mb, dst_var);
1874 mono_mb_emit_stloc (mb, 1);
1877 case MONO_TYPE_OBJECT: {
1878 mono_init_com_types ();
1880 static MonoMethod *variant_clear = NULL;
1881 static MonoMethod *get_object_for_native_variant = NULL;
1884 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1885 if (!get_object_for_native_variant)
1886 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1887 mono_mb_emit_ldloc (mb, 1);
1888 mono_mb_emit_ldloc (mb, 0);
1889 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1890 mono_mb_emit_byte (mb, CEE_STIND_REF);
1892 mono_mb_emit_ldloc (mb, 0);
1893 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1896 static MonoMethod *get_native_variant_for_object = NULL;
1898 if (!get_native_variant_for_object)
1899 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1901 mono_mb_emit_ldloc (mb, 0);
1902 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1903 mono_mb_emit_ldloc (mb, 1);
1904 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1910 g_warning ("marshaling type %02x not implemented", ftype->type);
1911 g_assert_not_reached ();
1916 int src_var, dst_var;
1918 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1919 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1921 /* save the old src pointer */
1922 mono_mb_emit_ldloc (mb, 0);
1923 mono_mb_emit_stloc (mb, src_var);
1924 /* save the old dst pointer */
1925 mono_mb_emit_ldloc (mb, 1);
1926 mono_mb_emit_stloc (mb, dst_var);
1929 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1931 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1933 /* restore the old src pointer */
1934 mono_mb_emit_ldloc (mb, src_var);
1935 mono_mb_emit_stloc (mb, 0);
1936 /* restore the old dst pointer */
1937 mono_mb_emit_ldloc (mb, dst_var);
1938 mono_mb_emit_stloc (mb, 1);
1943 mono_mb_emit_add_to_local (mb, 0, usize);
1944 mono_mb_emit_add_to_local (mb, 1, msize);
1946 mono_mb_emit_add_to_local (mb, 0, msize);
1947 mono_mb_emit_add_to_local (mb, 1, usize);
1953 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1955 /* Call DestroyStructure */
1956 /* FIXME: Only do this if needed */
1957 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1958 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1959 mono_mb_emit_ldloc (mb, struct_var);
1960 mono_mb_emit_icall (mb, mono_struct_delete_old);
1964 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1968 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1969 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1970 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1972 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1973 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1975 mono_mb_emit_icall (mb, checkpoint_func);
1977 mono_mb_patch_branch (mb, pos_noabort);
1981 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1983 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1986 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1990 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1992 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1996 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1998 emit_thread_interrupt_checkpoint (mb);
2001 static MonoAsyncResult *
2002 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2004 MonoMethodMessage *msg;
2005 MonoDelegate *async_callback;
2006 MonoMulticastDelegate *mcast_delegate;
2010 MonoMethod *method = NULL, *method2 = NULL;
2012 g_assert (delegate);
2013 mcast_delegate = (MonoMulticastDelegate *) delegate;
2014 if (mcast_delegate->prev != NULL)
2015 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2017 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2019 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2020 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2022 /* If the target is a proxy, make a direct call. Is proxy's work
2023 // to make the call asynchronous.
2025 MonoAsyncResult *ares;
2027 MonoArray *out_args;
2028 method = delegate->method;
2030 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2031 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2032 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2033 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2034 MONO_OBJECT_SETREF (msg, async_result, ares);
2035 msg->call_type = CallType_BeginInvoke;
2038 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2040 mono_raise_exception ((MonoException *) exc);
2045 klass = delegate->object.vtable->klass;
2047 method = mono_get_delegate_invoke (klass);
2048 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2051 g_assert (method != NULL);
2053 im = mono_get_delegate_invoke (method->klass);
2054 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2056 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2060 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2062 int i, params_var, tmp_var;
2064 /* allocate local (pointer) *params[] */
2065 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2066 /* allocate local (pointer) tmp */
2067 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2069 /* alloate space on stack to store an array of pointers to the arguments */
2070 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2071 mono_mb_emit_byte (mb, CEE_PREFIX1);
2072 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2073 mono_mb_emit_stloc (mb, params_var);
2076 mono_mb_emit_ldloc (mb, params_var);
2077 mono_mb_emit_stloc (mb, tmp_var);
2079 if (save_this && sig->hasthis) {
2080 mono_mb_emit_ldloc (mb, tmp_var);
2081 mono_mb_emit_ldarg_addr (mb, 0);
2082 mono_mb_emit_byte (mb, CEE_STIND_I);
2083 /* tmp = tmp + sizeof (gpointer) */
2084 if (sig->param_count)
2085 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2089 for (i = 0; i < sig->param_count; i++) {
2090 mono_mb_emit_ldloc (mb, tmp_var);
2091 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2092 mono_mb_emit_byte (mb, CEE_STIND_I);
2093 /* tmp = tmp + sizeof (gpointer) */
2094 if (i < (sig->param_count - 1))
2095 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2102 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2106 GString *res = g_string_new ("");
2109 g_string_append (res, prefix);
2110 g_string_append_c (res, '_');
2113 mono_type_get_desc (res, sig->ret, FALSE);
2116 g_string_append (res, "__this__");
2118 for (i = 0; i < sig->param_count; ++i) {
2119 g_string_append_c (res, '_');
2120 mono_type_get_desc (res, sig->params [i], FALSE);
2123 g_string_free (res, FALSE);
2128 * mono_marshal_get_string_encoding:
2130 * Return the string encoding which should be used for a given parameter.
2132 static MonoMarshalNative
2133 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2135 /* First try the parameter marshal info */
2137 if (spec->native == MONO_NATIVE_LPARRAY) {
2138 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2139 return spec->data.array_data.elem_type;
2142 return spec->native;
2146 return MONO_NATIVE_LPSTR;
2148 /* Then try the method level marshal info */
2149 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2150 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2151 return MONO_NATIVE_LPSTR;
2152 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2153 return MONO_NATIVE_LPWSTR;
2154 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2156 return MONO_NATIVE_LPWSTR;
2158 return MONO_NATIVE_LPSTR;
2161 return MONO_NATIVE_LPSTR;
2165 static MonoMarshalConv
2166 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2168 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2171 case MONO_NATIVE_LPWSTR:
2172 return MONO_MARSHAL_CONV_STR_LPWSTR;
2173 case MONO_NATIVE_LPSTR:
2174 return MONO_MARSHAL_CONV_STR_LPSTR;
2175 case MONO_NATIVE_LPTSTR:
2176 return MONO_MARSHAL_CONV_STR_LPTSTR;
2177 case MONO_NATIVE_BSTR:
2178 return MONO_MARSHAL_CONV_STR_BSTR;
2184 static MonoMarshalConv
2185 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2187 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2190 case MONO_NATIVE_LPWSTR:
2191 return MONO_MARSHAL_CONV_SB_LPWSTR;
2193 case MONO_NATIVE_LPSTR:
2194 return MONO_MARSHAL_CONV_SB_LPSTR;
2196 case MONO_NATIVE_LPTSTR:
2197 return MONO_MARSHAL_CONV_SB_LPTSTR;
2204 static MonoMarshalConv
2205 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2207 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2212 case MONO_NATIVE_LPWSTR:
2214 return MONO_MARSHAL_CONV_LPWSTR_STR;
2215 case MONO_NATIVE_LPSTR:
2216 return MONO_MARSHAL_CONV_LPSTR_STR;
2217 case MONO_NATIVE_LPTSTR:
2218 return MONO_MARSHAL_CONV_LPTSTR_STR;
2219 case MONO_NATIVE_BSTR:
2220 return MONO_MARSHAL_CONV_BSTR_STR;
2226 static MonoMarshalConv
2227 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2229 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2234 case MONO_NATIVE_LPWSTR:
2236 * mono_string_builder_to_utf16 does not allocate a
2237 * new buffer, so no need to free it.
2240 return MONO_MARSHAL_CONV_LPWSTR_SB;
2241 case MONO_NATIVE_LPSTR:
2242 return MONO_MARSHAL_CONV_LPSTR_SB;
2244 case MONO_NATIVE_LPTSTR:
2245 return MONO_MARSHAL_CONV_LPTSTR_SB;
2253 * Return whenever a field of a native structure or an array member needs to
2257 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2259 MonoMarshalNative encoding;
2260 MonoMarshalConv conv;
2263 case MONO_TYPE_VALUETYPE:
2264 /* FIXME: Optimize this */
2266 case MONO_TYPE_OBJECT:
2267 case MONO_TYPE_CLASS:
2268 if (t->data.klass == mono_defaults.stringbuilder_class) {
2270 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2274 case MONO_TYPE_STRING:
2275 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2276 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2283 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2286 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2289 mono_marshal_lock ();
2292 g_hash_table_new (hash_func, equal_func);
2293 mono_memory_barrier ();
2296 mono_marshal_unlock ();
2302 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2304 return get_cache (var, hash_func, equal_func);
2308 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2312 mono_marshal_lock ();
2313 res = g_hash_table_lookup (cache, key);
2314 mono_marshal_unlock ();
2318 /* Create the method from the builder and place it in the cache */
2320 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2321 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2326 mono_marshal_lock ();
2327 res = g_hash_table_lookup (cache, key);
2328 mono_marshal_unlock ();
2331 newm = mono_mb_create_method (mb, sig, max_stack);
2332 mono_marshal_lock ();
2333 res = g_hash_table_lookup (cache, key);
2336 g_hash_table_insert (cache, key, res);
2337 mono_marshal_set_wrapper_info (res, key);
2338 mono_marshal_unlock ();
2340 mono_marshal_unlock ();
2341 mono_free_method (newm);
2349 static inline MonoMethod*
2350 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2352 MonoMethod *res = NULL;
2353 MonoRemotingMethods *wrps;
2355 mono_marshal_lock ();
2356 if (method->klass->image->remoting_invoke_cache)
2357 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2362 switch (wrapper_type) {
2363 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2364 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2365 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2366 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2370 /* it is important to do the unlock after the load from wrps, since in
2371 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2372 * to take the loader lock and some other thread may set the fields.
2374 mono_marshal_unlock ();
2378 /* Create the method from the builder and place it in the cache */
2379 static inline MonoMethod*
2380 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2381 MonoMethodSignature *sig, int max_stack)
2383 MonoMethod **res = NULL;
2384 MonoRemotingMethods *wrps;
2385 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2387 mono_marshal_lock ();
2388 wrps = g_hash_table_lookup (cache, key);
2390 wrps = g_new0 (MonoRemotingMethods, 1);
2391 g_hash_table_insert (cache, key, wrps);
2394 switch (mb->method->wrapper_type) {
2395 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2396 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2397 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2398 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2399 default: g_assert_not_reached (); break;
2401 mono_marshal_unlock ();
2405 newm = mono_mb_create_method (mb, sig, max_stack);
2407 mono_marshal_lock ();
2410 mono_marshal_set_wrapper_info (*res, key);
2411 mono_marshal_unlock ();
2413 mono_marshal_unlock ();
2414 mono_free_method (newm);
2422 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2425 int wrapper_type = wrapper->wrapper_type;
2427 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2430 switch (wrapper_type) {
2431 case MONO_WRAPPER_REMOTING_INVOKE:
2432 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2433 case MONO_WRAPPER_XDOMAIN_INVOKE:
2434 case MONO_WRAPPER_SYNCHRONIZED:
2435 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2436 case MONO_WRAPPER_RUNTIME_INVOKE:
2437 res = mono_method_get_wrapper_data (wrapper, 1);
2447 * mono_marshal_get_wrapper_info:
2449 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2452 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2454 g_assert (wrapper->wrapper_type);
2456 return mono_method_get_wrapper_data (wrapper, 1);
2460 * mono_marshal_set_wrapper_info:
2462 * Store an arbitrary pointer inside the wrapper which is retrievable by
2463 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2464 * wrapper (method->wrapper_type).
2467 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2471 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2474 datav = ((MonoMethodWrapper *)method)->method_data;
2479 * get_wrapper_target_class:
2481 * Return the class where a wrapper method should be placed.
2484 get_wrapper_target_class (MonoImage *image)
2490 * - can't put all wrappers into an mscorlib class, because they reference
2491 * metadata (signature) so they should be put into the same image as the
2492 * method they wrap, so they are unloaded together.
2493 * - putting them into a class with a type initalizer could cause the
2494 * initializer to be executed which can be a problem if the wrappers are
2496 * - putting them into an inflated class can cause problems if the the
2497 * class is deleted because it references an image which is unloaded.
2498 * To avoid these problems, we put the wrappers into the <Module> class of
2502 klass = ((MonoDynamicImage*)image)->wrappers_type;
2504 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2511 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2513 MonoMethodSignature *sig;
2514 MonoMethodBuilder *mb;
2520 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2521 !strcmp (method->name, "BeginInvoke"));
2523 sig = mono_signature_no_pinvoke (method);
2525 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2526 (GHashFunc)mono_signature_hash,
2527 (GCompareFunc)mono_metadata_signature_equal);
2528 if ((res = mono_marshal_find_in_cache (cache, sig)))
2531 g_assert (sig->hasthis);
2533 name = mono_signature_to_name (sig, "begin_invoke");
2534 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2537 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2539 mono_mb_emit_ldarg (mb, 0);
2540 mono_mb_emit_ldloc (mb, params_var);
2541 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2542 mono_mb_emit_byte (mb, CEE_RET);
2544 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2550 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2552 MonoDomain *domain = mono_domain_get ();
2553 MonoAsyncResult *ares;
2554 MonoMethod *method = NULL;
2555 MonoMethodSignature *sig;
2556 MonoMethodMessage *msg;
2557 MonoObject *res, *exc;
2558 MonoArray *out_args;
2561 g_assert (delegate);
2563 if (!delegate->method_info) {
2564 g_assert (delegate->method);
2565 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2568 if (!delegate->method_info || !delegate->method_info->method)
2569 g_assert_not_reached ();
2571 klass = delegate->object.vtable->klass;
2573 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2574 g_assert (method != NULL);
2576 sig = mono_signature_no_pinvoke (method);
2578 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2580 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2582 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."));
2586 if (ares->async_delegate != (MonoObject*)delegate) {
2587 mono_raise_exception (mono_get_exception_invalid_operation (
2588 "The IAsyncResult object provided does not match this delegate."));
2592 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2593 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2594 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2595 mono_message_init (domain, msg, delegate->method_info, NULL);
2596 msg->call_type = CallType_EndInvoke;
2597 MONO_OBJECT_SETREF (msg, async_result, ares);
2598 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2600 res = mono_thread_pool_finish (ares, &out_args, &exc);
2604 if (((MonoException*)exc)->stack_trace) {
2605 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2607 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2609 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2612 mono_raise_exception ((MonoException*)exc);
2615 mono_method_return_message_restore (method, params, out_args);
2620 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2622 MonoType *t = mono_type_get_underlying_type (return_type);
2624 if (return_type->byref)
2625 return_type = &mono_defaults.int_class->byval_arg;
2628 case MONO_TYPE_VOID:
2629 g_assert_not_reached ();
2632 case MONO_TYPE_STRING:
2633 case MONO_TYPE_CLASS:
2634 case MONO_TYPE_OBJECT:
2635 case MONO_TYPE_ARRAY:
2636 case MONO_TYPE_SZARRAY:
2640 case MONO_TYPE_BOOLEAN:
2643 case MONO_TYPE_CHAR:
2653 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2654 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2656 case MONO_TYPE_GENERICINST:
2657 if (!mono_type_generic_inst_is_valuetype (t))
2660 case MONO_TYPE_VALUETYPE: {
2661 MonoClass *klass = mono_class_from_mono_type (return_type);
2662 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2663 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2667 g_warning ("type 0x%x not handled", return_type->type);
2668 g_assert_not_reached ();
2671 mono_mb_emit_byte (mb, CEE_RET);
2675 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2677 MonoMethodSignature *sig;
2678 MonoMethodBuilder *mb;
2684 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2685 !strcmp (method->name, "EndInvoke"));
2687 sig = mono_signature_no_pinvoke (method);
2689 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2690 (GHashFunc)mono_signature_hash,
2691 (GCompareFunc)mono_metadata_signature_equal);
2692 if ((res = mono_marshal_find_in_cache (cache, sig)))
2695 g_assert (sig->hasthis);
2697 name = mono_signature_to_name (sig, "end_invoke");
2698 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2701 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2703 mono_mb_emit_ldarg (mb, 0);
2704 mono_mb_emit_ldloc (mb, params_var);
2705 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2707 if (sig->ret->type == MONO_TYPE_VOID) {
2708 mono_mb_emit_byte (mb, CEE_POP);
2709 mono_mb_emit_byte (mb, CEE_RET);
2711 mono_mb_emit_restore_result (mb, sig->ret);
2713 res = mono_mb_create_and_cache (cache, sig,
2714 mb, sig, sig->param_count + 16);
2721 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2723 MonoMethodMessage *msg;
2724 MonoTransparentProxy *this;
2725 MonoObject *res, *exc;
2726 MonoArray *out_args;
2728 this = *((MonoTransparentProxy **)params [0]);
2731 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2733 /* skip the this pointer */
2736 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2739 MonoMethodSignature *sig = mono_method_signature (method);
2740 int count = sig->param_count;
2741 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2743 for (i=0; i<count; i++) {
2744 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2745 if (class->valuetype) {
2746 if (sig->params [i]->byref) {
2747 mparams[i] = *((gpointer *)params [i]);
2749 /* runtime_invoke expects a boxed instance */
2750 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2751 mparams[i] = mono_nullable_box (params [i], class);
2753 mparams[i] = params [i];
2756 mparams[i] = *((gpointer**)params [i]);
2760 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2763 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2765 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2768 mono_raise_exception ((MonoException *)exc);
2770 mono_method_return_message_restore (method, params, out_args);
2776 mono_marshal_get_remoting_invoke (MonoMethod *method)
2778 MonoMethodSignature *sig;
2779 MonoMethodBuilder *mb;
2785 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2788 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2789 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2790 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2791 g_assert (vtable); /*FIXME do proper error handling*/
2793 if (!vtable->remote) {
2795 return mono_cominterop_get_invoke (method);
2797 g_assert_not_reached ();
2802 sig = mono_signature_no_pinvoke (method);
2804 /* we cant remote methods without this pointer */
2808 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2811 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2812 mb->method->save_lmf = 1;
2814 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2816 mono_mb_emit_ptr (mb, method);
2817 mono_mb_emit_ldloc (mb, params_var);
2818 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2819 emit_thread_interrupt_checkpoint (mb);
2821 if (sig->ret->type == MONO_TYPE_VOID) {
2822 mono_mb_emit_byte (mb, CEE_POP);
2823 mono_mb_emit_byte (mb, CEE_RET);
2825 mono_mb_emit_restore_result (mb, sig->ret);
2828 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2834 /* mono_get_xdomain_marshal_type()
2835 * Returns the kind of marshalling that a type needs for cross domain calls.
2837 static MonoXDomainMarshalType
2838 mono_get_xdomain_marshal_type (MonoType *t)
2841 case MONO_TYPE_VOID:
2842 g_assert_not_reached ();
2846 case MONO_TYPE_BOOLEAN:
2849 case MONO_TYPE_CHAR:
2856 return MONO_MARSHAL_NONE;
2857 case MONO_TYPE_STRING:
2858 return MONO_MARSHAL_COPY;
2859 case MONO_TYPE_ARRAY:
2860 case MONO_TYPE_SZARRAY: {
2861 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2862 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2863 return MONO_MARSHAL_COPY;
2868 return MONO_MARSHAL_SERIALIZE;
2872 /* mono_marshal_xdomain_copy_value
2873 * Makes a copy of "val" suitable for the current domain.
2876 mono_marshal_xdomain_copy_value (MonoObject *val)
2879 if (val == NULL) return NULL;
2881 domain = mono_domain_get ();
2883 switch (mono_object_class (val)->byval_arg.type) {
2884 case MONO_TYPE_VOID:
2885 g_assert_not_reached ();
2889 case MONO_TYPE_BOOLEAN:
2892 case MONO_TYPE_CHAR:
2898 case MONO_TYPE_R8: {
2899 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2901 case MONO_TYPE_STRING: {
2902 MonoString *str = (MonoString *) val;
2903 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2905 case MONO_TYPE_ARRAY:
2906 case MONO_TYPE_SZARRAY: {
2908 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2909 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2910 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2911 if (mt == MONO_MARSHAL_COPY) {
2912 int i, len = mono_array_length (acopy);
2913 for (i = 0; i < len; i++) {
2914 MonoObject *item = mono_array_get (acopy, gpointer, i);
2915 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2918 return (MonoObject *) acopy;
2922 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2923 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2924 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2925 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2926 newsb->length = oldsb->length;
2927 newsb->max_capacity = (gint32)0x7fffffff;
2928 return (MonoObject *) newsb;
2933 /* mono_marshal_xdomain_copy_out_value()
2934 * Copies the contents of the src instance into the dst instance. src and dst
2935 * must have the same type, and if they are arrays, the same size.
2938 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2940 if (src == NULL || dst == NULL) return;
2942 g_assert (mono_object_class (src) == mono_object_class (dst));
2944 switch (mono_object_class (src)->byval_arg.type) {
2945 case MONO_TYPE_ARRAY:
2946 case MONO_TYPE_SZARRAY: {
2947 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2948 if (mt == MONO_MARSHAL_SERIALIZE) return;
2949 if (mt == MONO_MARSHAL_COPY) {
2950 int i, len = mono_array_length ((MonoArray *)dst);
2951 for (i = 0; i < len; i++) {
2952 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2953 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2956 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2962 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2963 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2964 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2966 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)));
2967 dst_sb->cached_str = NULL;
2968 dst_sb->length = src_sb->length;
2973 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2975 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2976 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2980 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2982 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2985 /* mono_marshal_supports_fast_xdomain()
2986 * Returns TRUE if the method can use the fast xdomain wrapper.
2989 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2991 return !method->klass->contextbound &&
2992 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2996 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2998 MonoDomain *current_domain = mono_domain_get ();
2999 MonoDomain *domain = mono_domain_get_by_id (id);
3001 if (!domain || !mono_domain_set (domain, FALSE))
3002 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3005 mono_thread_push_appdomain_ref (domain);
3007 mono_thread_pop_appdomain_ref ();
3009 return current_domain->domain_id;
3013 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3015 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3018 /* mono_marshal_emit_load_domain_method ()
3019 * Loads into the stack a pointer to the code of the provided method for
3020 * the current domain.
3023 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3025 /* We need a pointer to the method for the running domain (not the domain
3026 * that compiles the method).
3028 mono_mb_emit_ptr (mb, method);
3029 mono_mb_emit_icall (mb, mono_compile_method);
3032 /* mono_marshal_check_domain_image ()
3033 * Returns TRUE if the image is loaded in the specified
3034 * application domain.
3037 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3042 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3046 mono_domain_assemblies_lock (domain);
3047 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3049 if (ass->image == image)
3052 mono_domain_assemblies_unlock (domain);
3057 /* mono_marshal_get_xappdomain_dispatch ()
3058 * Generates a method that dispatches a method call from another domain into
3059 * the current domain.
3062 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3064 MonoMethodSignature *sig, *csig;
3065 MonoMethodBuilder *mb;
3067 int i, j, param_index, copy_locals_base;
3068 MonoClass *ret_class = NULL;
3069 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3070 MonoExceptionClause *main_clause;
3072 gboolean copy_return;
3074 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3077 sig = mono_method_signature (method);
3078 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3081 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3082 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3083 csig->params [j++] = &byte_array_class->this_arg;
3084 csig->params [j++] = &byte_array_class->this_arg;
3085 for (i = 0; i < sig->param_count; i++) {
3086 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3087 csig->params [j++] = sig->params [i];
3090 csig->ret = sig->ret;
3092 csig->ret = &mono_defaults.void_class->byval_arg;
3094 csig->hasthis = FALSE;
3096 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3097 mb->method->save_lmf = 1;
3101 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3102 if (complex_count > 0)
3103 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3104 if (sig->ret->type != MONO_TYPE_VOID) {
3105 loc_return = mono_mb_add_local (mb, sig->ret);
3106 ret_class = mono_class_from_mono_type (sig->ret);
3111 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3112 main_clause->try_offset = mono_mb_get_label (mb);
3114 /* Clean the call context */
3116 mono_mb_emit_byte (mb, CEE_LDNULL);
3117 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3118 mono_mb_emit_byte (mb, CEE_POP);
3120 /* Deserialize call data */
3122 mono_mb_emit_ldarg (mb, 1);
3123 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3124 mono_mb_emit_byte (mb, CEE_DUP);
3125 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3127 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3128 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3130 if (complex_count > 0)
3131 mono_mb_emit_stloc (mb, loc_array);
3133 mono_mb_emit_byte (mb, CEE_POP);
3135 mono_mb_patch_short_branch (mb, pos);
3137 /* Get the target object */
3139 mono_mb_emit_ldarg (mb, 0);
3140 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3142 /* Load the arguments */
3144 copy_locals_base = mb->locals;
3145 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3147 for (i = 0; i < sig->param_count; i++) {
3148 MonoType *pt = sig->params [i];
3149 MonoClass *pclass = mono_class_from_mono_type (pt);
3150 switch (marshal_types [i]) {
3151 case MONO_MARSHAL_SERIALIZE: {
3152 /* take the value from the serialized array */
3153 mono_mb_emit_ldloc (mb, loc_array);
3154 mono_mb_emit_icon (mb, j++);
3156 if (pclass->valuetype) {
3157 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3158 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3160 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3163 if (pclass->valuetype) {
3164 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3165 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3166 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3168 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3169 if (pclass != mono_defaults.object_class) {
3170 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3176 case MONO_MARSHAL_COPY_OUT: {
3177 /* Keep a local copy of the value since we need to copy it back after the call */
3178 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3179 mono_mb_emit_ldarg (mb, param_index++);
3180 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3181 mono_mb_emit_byte (mb, CEE_DUP);
3182 mono_mb_emit_stloc (mb, copy_local);
3185 case MONO_MARSHAL_COPY: {
3186 mono_mb_emit_ldarg (mb, param_index);
3188 mono_mb_emit_byte (mb, CEE_DUP);
3189 mono_mb_emit_byte (mb, CEE_DUP);
3190 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3191 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3192 mono_mb_emit_byte (mb, CEE_STIND_REF);
3194 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3199 case MONO_MARSHAL_NONE:
3200 mono_mb_emit_ldarg (mb, param_index++);
3205 /* Make the call to the real object */
3207 emit_thread_force_interrupt_checkpoint (mb);
3209 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3211 if (sig->ret->type != MONO_TYPE_VOID)
3212 mono_mb_emit_stloc (mb, loc_return);
3214 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3218 for (i = 0; i < sig->param_count; i++) {
3219 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3220 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3221 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3222 mono_mb_emit_ldarg (mb, param_index);
3223 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3228 /* Serialize the return values */
3230 if (complex_out_count > 0) {
3231 /* Reset parameters in the array that don't need to be serialized back */
3233 for (i = 0; i < sig->param_count; i++) {
3234 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3235 if (!sig->params [i]->byref) {
3236 mono_mb_emit_ldloc (mb, loc_array);
3237 mono_mb_emit_icon (mb, j);
3238 mono_mb_emit_byte (mb, CEE_LDNULL);
3239 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3244 /* Add the return value to the array */
3246 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3247 mono_mb_emit_ldloc (mb, loc_array);
3248 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3249 mono_mb_emit_ldloc (mb, loc_return);
3251 g_assert (ret_class); /*FIXME properly fail here*/
3252 if (ret_class->valuetype) {
3253 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3255 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3260 mono_mb_emit_ldarg (mb, 1);
3261 mono_mb_emit_ldloc (mb, loc_array);
3262 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3263 mono_mb_emit_byte (mb, CEE_STIND_REF);
3264 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3265 mono_mb_emit_ldarg (mb, 1);
3266 mono_mb_emit_ldloc (mb, loc_return);
3267 if (ret_class->valuetype) {
3268 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3270 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3271 mono_mb_emit_byte (mb, CEE_STIND_REF);
3273 mono_mb_emit_ldarg (mb, 1);
3274 mono_mb_emit_byte (mb, CEE_LDNULL);
3275 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3276 mono_mb_emit_byte (mb, CEE_STIND_REF);
3279 mono_mb_emit_ldarg (mb, 2);
3280 mono_mb_emit_byte (mb, CEE_LDNULL);
3281 mono_mb_emit_byte (mb, CEE_STIND_REF);
3282 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3284 /* Main exception catch */
3285 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3286 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3287 main_clause->data.catch_class = mono_defaults.object_class;
3290 main_clause->handler_offset = mono_mb_get_label (mb);
3291 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3292 mono_mb_emit_stloc (mb, loc_serialized_exc);
3293 mono_mb_emit_ldarg (mb, 2);
3294 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3295 mono_mb_emit_byte (mb, CEE_STIND_REF);
3296 mono_mb_emit_branch (mb, CEE_LEAVE);
3297 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3300 mono_mb_patch_branch (mb, pos_leave);
3303 mono_mb_emit_ldloc (mb, loc_return);
3305 mono_mb_emit_byte (mb, CEE_RET);
3307 mono_mb_set_clauses (mb, 1, main_clause);
3309 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3315 /* mono_marshal_get_xappdomain_invoke ()
3316 * Generates a fast remoting wrapper for cross app domain calls.
3319 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3321 MonoMethodSignature *sig;
3322 MonoMethodBuilder *mb;
3324 int i, j, complex_count, complex_out_count, copy_locals_base;
3326 MonoClass *ret_class = NULL;
3327 MonoMethod *xdomain_method;
3328 int ret_marshal_type = MONO_MARSHAL_NONE;
3329 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3330 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3331 int pos, pos_dispatch, pos_noex;
3332 gboolean copy_return = FALSE;
3336 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3339 /* we cant remote methods without this pointer */
3340 if (!mono_method_signature (method)->hasthis)
3343 if (!mono_marshal_supports_fast_xdomain (method))
3344 return mono_marshal_get_remoting_invoke (method);
3346 mono_remoting_marshal_init ();
3348 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3351 sig = mono_signature_no_pinvoke (method);
3353 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3354 mb->method->save_lmf = 1;
3356 /* Count the number of parameters that need to be serialized */
3358 marshal_types = alloca (sizeof (int) * sig->param_count);
3359 complex_count = complex_out_count = 0;
3360 for (i = 0; i < sig->param_count; i++) {
3361 MonoType *ptype = sig->params[i];
3362 int mt = mono_get_xdomain_marshal_type (ptype);
3364 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3365 * the copy will be made by reusing the original object instance
3367 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3368 mt = MONO_MARSHAL_COPY_OUT;
3369 else if (mt == MONO_MARSHAL_SERIALIZE) {
3371 if (ptype->byref) complex_out_count++;
3373 marshal_types [i] = mt;
3376 if (sig->ret->type != MONO_TYPE_VOID) {
3377 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3378 ret_class = mono_class_from_mono_type (sig->ret);
3379 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3384 if (complex_count > 0)
3385 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3386 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3387 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3389 loc_return = mono_mb_add_local (mb, sig->ret);
3390 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3391 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3392 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3393 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3395 /* Save thread domain data */
3397 mono_mb_emit_icall (mb, mono_context_get);
3398 mono_mb_emit_byte (mb, CEE_DUP);
3399 mono_mb_emit_stloc (mb, loc_context);
3401 /* If the thread is not running in the default context, it needs to go
3402 * through the whole remoting sink, since the context is going to change
3404 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3405 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3407 /* Another case in which the fast path can't be used: when the target domain
3408 * has a different image for the same assembly.
3411 /* Get the target domain id */
3413 mono_mb_emit_ldarg (mb, 0);
3414 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3415 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3416 mono_mb_emit_byte (mb, CEE_DUP);
3417 mono_mb_emit_stloc (mb, loc_real_proxy);
3419 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3420 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3421 mono_mb_emit_stloc (mb, loc_domainid);
3423 /* Check if the target domain has the same image for the required assembly */
3425 mono_mb_emit_ldloc (mb, loc_domainid);
3426 mono_mb_emit_ptr (mb, method->klass->image);
3427 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3428 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3430 /* Use the whole remoting sink to dispatch this message */
3432 mono_mb_patch_short_branch (mb, pos);
3434 mono_mb_emit_ldarg (mb, 0);
3435 for (i = 0; i < sig->param_count; i++)
3436 mono_mb_emit_ldarg (mb, i + 1);
3438 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3439 mono_mb_emit_byte (mb, CEE_RET);
3440 mono_mb_patch_short_branch (mb, pos_dispatch);
3442 /* Create the array that will hold the parameters to be serialized */
3444 if (complex_count > 0) {
3445 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 */
3446 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3449 for (i = 0; i < sig->param_count; i++) {
3451 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3452 pclass = mono_class_from_mono_type (sig->params[i]);
3453 mono_mb_emit_byte (mb, CEE_DUP);
3454 mono_mb_emit_icon (mb, j);
3455 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3456 if (sig->params[i]->byref) {
3457 if (pclass->valuetype)
3458 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3460 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3462 if (pclass->valuetype)
3463 mono_mb_emit_op (mb, CEE_BOX, pclass);
3464 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3467 mono_mb_emit_stloc (mb, loc_array);
3469 /* Serialize parameters */
3471 mono_mb_emit_ldloc (mb, loc_array);
3472 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3473 mono_mb_emit_stloc (mb, loc_serialized_data);
3475 mono_mb_emit_byte (mb, CEE_LDNULL);
3476 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3477 mono_mb_emit_stloc (mb, loc_serialized_data);
3482 mono_mb_emit_ldloc (mb, loc_domainid);
3483 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3484 mono_marshal_emit_switch_domain (mb);
3485 mono_mb_emit_stloc (mb, loc_old_domainid);
3487 /* Load the arguments */
3489 mono_mb_emit_ldloc (mb, loc_real_proxy);
3490 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3491 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3493 copy_locals_base = mb->locals;
3494 for (i = 0; i < sig->param_count; i++) {
3495 switch (marshal_types [i]) {
3496 case MONO_MARSHAL_SERIALIZE:
3498 case MONO_MARSHAL_COPY: {
3499 mono_mb_emit_ldarg (mb, i+1);
3500 if (sig->params [i]->byref) {
3501 /* make a local copy of the byref parameter. The real parameter
3502 * will be updated after the xdomain call
3504 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3505 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3506 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3507 mono_mb_emit_stloc (mb, copy_local);
3508 mono_mb_emit_ldloc_addr (mb, copy_local);
3512 case MONO_MARSHAL_COPY_OUT:
3513 case MONO_MARSHAL_NONE:
3514 mono_mb_emit_ldarg (mb, i+1);
3519 /* Make the call to the invoke wrapper in the target domain */
3521 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3522 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3523 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3526 mono_mb_emit_stloc (mb, loc_return);
3530 mono_mb_emit_ldloc (mb, loc_old_domainid);
3531 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3532 mono_marshal_emit_switch_domain (mb);
3533 mono_mb_emit_byte (mb, CEE_POP);
3535 /* Restore thread domain data */
3537 mono_mb_emit_ldloc (mb, loc_context);
3538 mono_mb_emit_icall (mb, mono_context_set);
3540 /* if (loc_serialized_exc != null) ... */
3542 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3543 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3545 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3546 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3547 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3548 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3549 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3550 mono_mb_emit_byte (mb, CEE_THROW);
3551 mono_mb_patch_short_branch (mb, pos_noex);
3553 /* copy back non-serialized output parameters */
3556 for (i = 0; i < sig->param_count; i++) {
3557 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3558 mono_mb_emit_ldarg (mb, i + 1);
3559 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3560 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3561 mono_mb_emit_byte (mb, CEE_STIND_REF);
3564 /* Deserialize out parameters */
3566 if (complex_out_count > 0) {
3567 mono_mb_emit_ldloc (mb, loc_serialized_data);
3568 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3569 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3570 mono_mb_emit_stloc (mb, loc_array);
3572 /* Copy back output parameters and return type */
3575 for (i = 0; i < sig->param_count; i++) {
3576 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3577 if (sig->params[i]->byref) {
3578 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3579 mono_mb_emit_ldarg (mb, i + 1);
3580 mono_mb_emit_ldloc (mb, loc_array);
3581 mono_mb_emit_icon (mb, j);
3582 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3583 if (pclass->valuetype) {
3584 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3585 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3586 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3588 if (pclass != mono_defaults.object_class)
3589 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3590 mono_mb_emit_byte (mb, CEE_STIND_REF);
3596 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3597 mono_mb_emit_ldloc (mb, loc_array);
3598 mono_mb_emit_icon (mb, complex_count);
3599 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3600 if (ret_class->valuetype) {
3601 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3602 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3605 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3606 mono_mb_emit_ldloc (mb, loc_serialized_data);
3607 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3608 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3609 if (ret_class->valuetype) {
3610 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3611 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3612 } else if (ret_class != mono_defaults.object_class) {
3613 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3616 mono_mb_emit_ldloc (mb, loc_serialized_data);
3617 mono_mb_emit_byte (mb, CEE_DUP);
3618 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3619 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3621 mono_mb_patch_short_branch (mb, pos);
3622 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3623 mono_mb_emit_byte (mb, CEE_POP);
3627 mono_mb_emit_ldloc (mb, loc_return);
3628 if (ret_marshal_type == MONO_MARSHAL_COPY)
3629 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3632 mono_mb_emit_byte (mb, CEE_RET);
3634 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3641 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3643 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3644 return mono_marshal_get_xappdomain_invoke (method);
3645 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3647 return mono_cominterop_get_invoke (method);
3649 g_assert_not_reached ();
3652 return mono_marshal_get_remoting_invoke (method);
3658 G_GNUC_UNUSED static gpointer
3659 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3661 if (rp->target_domain_id != -1)
3662 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3664 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3668 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3670 MonoMethodSignature *sig;
3671 MonoMethodBuilder *mb;
3672 MonoMethod *res, *native;
3673 int i, pos, pos_rem;
3677 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3680 /* we cant remote methods without this pointer */
3681 g_assert (mono_method_signature (method)->hasthis);
3683 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3686 sig = mono_signature_no_pinvoke (method);
3688 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3690 for (i = 0; i <= sig->param_count; i++)
3691 mono_mb_emit_ldarg (mb, i);
3693 mono_mb_emit_ldarg (mb, 0);
3694 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3696 if (mono_marshal_supports_fast_xdomain (method)) {
3697 mono_mb_emit_ldarg (mb, 0);
3698 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3700 /* wrapper for cross app domain calls */
3701 native = mono_marshal_get_xappdomain_invoke (method);
3702 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3703 mono_mb_emit_byte (mb, CEE_RET);
3705 mono_mb_patch_branch (mb, pos_rem);
3707 /* wrapper for normal remote calls */
3708 native = mono_marshal_get_remoting_invoke (method);
3709 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3710 mono_mb_emit_byte (mb, CEE_RET);
3713 mono_mb_patch_branch (mb, pos);
3714 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3715 mono_mb_emit_byte (mb, CEE_RET);
3717 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3725 MonoMethodSignature *sig;
3727 } SignatureMethodPair;
3730 signature_method_pair_hash (gconstpointer data)
3732 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3734 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3738 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3740 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3744 free_signature_method_pair (SignatureMethodPair *pair)
3750 * the returned method invokes all methods in a multicast delegate.
3753 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3755 MonoMethodSignature *sig, *static_sig;
3757 MonoMethodBuilder *mb;
3758 MonoMethod *res, *newm;
3760 SignatureMethodPair key;
3761 SignatureMethodPair *new_key;
3762 int local_prev, local_target;
3765 MonoMethod *target_method = NULL;
3766 MonoClass *target_class = NULL;
3767 gboolean callvirt = FALSE;
3768 gboolean closed_over_null = FALSE;
3771 * If the delegate target is null, and the target method is not static, a virtual
3772 * call is made to that method with the first delegate argument as this. This is
3773 * a non-documented .NET feature.
3775 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3777 target_method = del->method;
3778 if (target_method->is_inflated) {
3779 MonoType *target_type;
3781 g_assert (method->signature->hasthis);
3782 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3783 mono_method_get_context (method));
3784 target_class = mono_class_from_mono_type (target_type);
3786 target_class = del->method->klass;
3790 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3791 !strcmp (method->name, "Invoke"));
3793 sig = mono_signature_no_pinvoke (method);
3796 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3799 /* We need to cache the signature+method pair */
3800 mono_marshal_lock ();
3801 if (!method->klass->image->delegate_abstract_invoke_cache)
3802 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);
3803 cache = method->klass->image->delegate_abstract_invoke_cache;
3805 key.method = target_method;
3806 res = g_hash_table_lookup (cache, &key);
3807 mono_marshal_unlock ();
3811 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3812 (GHashFunc)mono_signature_hash,
3813 (GCompareFunc)mono_metadata_signature_equal);
3814 if ((res = mono_marshal_find_in_cache (cache, sig)))
3818 static_sig = signature_dup (method->klass->image, sig);
3819 static_sig->hasthis = 0;
3821 name = mono_signature_to_name (sig, "invoke");
3822 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3825 /* allocate local 0 (object) */
3826 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3827 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3829 g_assert (sig->hasthis);
3833 * prev.Invoke( args .. );
3834 * return this.<target>( args .. );
3837 /* this wrapper can be used in unmanaged-managed transitions */
3838 emit_thread_interrupt_checkpoint (mb);
3840 /* get this->prev */
3841 mono_mb_emit_ldarg (mb, 0);
3842 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3843 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3844 mono_mb_emit_stloc (mb, local_prev);
3845 mono_mb_emit_ldloc (mb, local_prev);
3847 /* if prev != null */
3848 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3853 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3855 mono_mb_emit_ldloc (mb, local_prev);
3856 for (i = 0; i < sig->param_count; i++)
3857 mono_mb_emit_ldarg (mb, i + 1);
3858 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3859 if (sig->ret->type != MONO_TYPE_VOID)
3860 mono_mb_emit_byte (mb, CEE_POP);
3862 /* continued or prev == null */
3863 mono_mb_patch_branch (mb, pos0);
3865 /* get this->target */
3866 mono_mb_emit_ldarg (mb, 0);
3867 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3868 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3869 mono_mb_emit_stloc (mb, local_target);
3871 /* if target != null */
3872 mono_mb_emit_ldloc (mb, local_target);
3873 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3875 /* then call this->method_ptr nonstatic */
3878 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3880 mono_mb_emit_ldloc (mb, local_target);
3881 for (i = 0; i < sig->param_count; ++i)
3882 mono_mb_emit_ldarg (mb, i + 1);
3883 mono_mb_emit_ldarg (mb, 0);
3884 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3885 mono_mb_emit_byte (mb, CEE_LDIND_I );
3886 mono_mb_emit_op (mb, CEE_CALLI, sig);
3888 mono_mb_emit_byte (mb, CEE_RET);
3891 /* else [target == null] call this->method_ptr static */
3892 mono_mb_patch_branch (mb, pos0);
3895 if (!closed_over_null) {
3896 mono_mb_emit_ldarg (mb, 1);
3897 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3898 for (i = 1; i < sig->param_count; ++i)
3899 mono_mb_emit_ldarg (mb, i + 1);
3900 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3902 mono_mb_emit_byte (mb, CEE_LDNULL);
3903 for (i = 0; i < sig->param_count; ++i)
3904 mono_mb_emit_ldarg (mb, i + 1);
3905 mono_mb_emit_op (mb, CEE_CALL, target_method);
3908 for (i = 0; i < sig->param_count; ++i)
3909 mono_mb_emit_ldarg (mb, i + 1);
3910 mono_mb_emit_ldarg (mb, 0);
3911 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3912 mono_mb_emit_byte (mb, CEE_LDIND_I );
3913 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3916 mono_mb_emit_byte (mb, CEE_RET);
3919 // From mono_mb_create_and_cache
3920 mb->skip_visibility = 1;
3921 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3922 /*We perform double checked locking, so must fence before publishing*/
3923 mono_memory_barrier ();
3924 mono_marshal_lock ();
3925 res = g_hash_table_lookup (cache, &key);
3928 new_key = g_new0 (SignatureMethodPair, 1);
3930 new_key->method = target_method;
3931 g_hash_table_insert (cache, new_key, res);
3932 mono_marshal_set_wrapper_info (res, new_key);
3933 mono_marshal_unlock ();
3935 mono_marshal_unlock ();
3936 mono_free_method (newm);
3939 mb->skip_visibility = 1;
3940 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3948 * signature_dup_add_this:
3950 * Make a copy of @sig, adding an explicit this argument.
3952 static MonoMethodSignature*
3953 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3955 MonoMethodSignature *res;
3958 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3959 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3960 res->param_count = sig->param_count + 1;
3961 res->hasthis = FALSE;
3962 for (i = sig->param_count - 1; i >= 0; i --)
3963 res->params [i + 1] = sig->params [i];
3964 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3970 MonoMethodSignature *ctor_sig;
3971 MonoMethodSignature *sig;
3974 /* protected by the marshal lock, contains CtorSigPair pointers */
3975 static GSList *strsig_list = NULL;
3977 static MonoMethodSignature *
3978 lookup_string_ctor_signature (MonoMethodSignature *sig)
3980 MonoMethodSignature *callsig;
3984 mono_marshal_lock ();
3986 for (item = strsig_list; item; item = item->next) {
3988 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3989 * because it is lock-free.
3991 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3996 mono_marshal_unlock ();
4000 static MonoMethodSignature *
4001 add_string_ctor_signature (MonoMethod *method)
4003 MonoMethodSignature *callsig;
4006 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4007 callsig->ret = &mono_defaults.string_class->byval_arg;
4008 cs = g_new (CtorSigPair, 1);
4010 cs->ctor_sig = mono_method_signature (method);
4012 mono_marshal_lock ();
4013 strsig_list = g_slist_prepend (strsig_list, cs);
4014 mono_marshal_unlock ();
4019 * mono_marshal_get_string_ctor_signature:
4021 * Return the modified signature used by string ctors (they return the newly created
4024 MonoMethodSignature*
4025 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4027 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4029 sig = add_string_ctor_signature (method);
4035 get_runtime_invoke_type (MonoType *t, gboolean ret)
4038 /* Can't share this with 'I' as that needs another indirection */
4041 if (MONO_TYPE_IS_REFERENCE (t))
4042 return &mono_defaults.object_class->byval_arg;
4045 /* The result needs to be boxed */
4051 return &mono_defaults.sbyte_class->byval_arg;
4053 return &mono_defaults.int16_class->byval_arg;
4055 return &mono_defaults.int32_class->byval_arg;
4057 return &mono_defaults.int64_class->byval_arg;
4058 case MONO_TYPE_BOOLEAN:
4059 return &mono_defaults.sbyte_class->byval_arg;
4060 case MONO_TYPE_CHAR:
4061 return &mono_defaults.int16_class->byval_arg;
4064 return &mono_defaults.int_class->byval_arg;
4065 case MONO_TYPE_VALUETYPE:
4066 if (t->data.klass->enumtype) {
4067 t = mono_class_enum_basetype (t->data.klass);
4077 * mono_marshal_get_runtime_invoke_sig:
4079 * Return a common signature used for sharing runtime invoke wrappers.
4081 static MonoMethodSignature*
4082 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4084 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4087 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4088 for (i = 0; i < res->param_count; ++i)
4089 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4095 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4097 /* Can't share wrappers which return a vtype since it needs to be boxed */
4098 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))
4101 return mono_metadata_signature_equal (sig1, sig2);
4107 * Emit the call to the wrapper method from a runtime invoke wrapper.
4110 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4111 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4113 gboolean virtual, gboolean need_direct_wrapper)
4115 static MonoString *string_dummy = NULL;
4117 int *tmp_nullable_locals;
4118 gboolean void_ret = FALSE;
4120 /* to make it work with our special string constructors */
4121 if (!string_dummy) {
4122 MONO_GC_REGISTER_ROOT (string_dummy);
4123 string_dummy = mono_string_new_wrapper ("dummy");
4127 g_assert (sig->hasthis);
4128 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4132 if (method->string_ctor) {
4133 mono_mb_emit_ptr (mb, string_dummy);
4135 mono_mb_emit_ldarg (mb, 0);
4139 tmp_nullable_locals = g_new0 (int, sig->param_count);
4141 for (i = 0; i < sig->param_count; i++) {
4142 MonoType *t = sig->params [i];
4145 mono_mb_emit_ldarg (mb, 1);
4147 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4148 mono_mb_emit_byte (mb, CEE_ADD);
4152 mono_mb_emit_byte (mb, CEE_LDIND_I);
4153 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4154 * So to make this work we unbox it to a local variablee and push a reference to that.
4156 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4157 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4159 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4160 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4161 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4166 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4167 type = sig->params [i]->type;
4171 case MONO_TYPE_BOOLEAN:
4175 case MONO_TYPE_CHAR:
4184 mono_mb_emit_byte (mb, CEE_LDIND_I);
4185 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4187 case MONO_TYPE_STRING:
4188 case MONO_TYPE_CLASS:
4189 case MONO_TYPE_ARRAY:
4191 case MONO_TYPE_SZARRAY:
4192 case MONO_TYPE_OBJECT:
4193 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4195 case MONO_TYPE_GENERICINST:
4196 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4197 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4202 case MONO_TYPE_VALUETYPE:
4203 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4204 type = mono_class_enum_basetype (t->data.klass)->type;
4207 mono_mb_emit_byte (mb, CEE_LDIND_I);
4208 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4209 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4210 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4211 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4213 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4217 g_assert_not_reached ();
4222 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4223 } else if (need_direct_wrapper) {
4224 mono_mb_emit_op (mb, CEE_CALL, method);
4226 mono_mb_emit_ldarg (mb, 3);
4227 mono_mb_emit_calli (mb, callsig);
4230 if (sig->ret->byref) {
4232 g_assert_not_reached ();
4235 switch (sig->ret->type) {
4236 case MONO_TYPE_VOID:
4237 if (!method->string_ctor)
4240 case MONO_TYPE_BOOLEAN:
4241 case MONO_TYPE_CHAR:
4254 case MONO_TYPE_VALUETYPE:
4255 case MONO_TYPE_TYPEDBYREF:
4256 case MONO_TYPE_GENERICINST:
4257 /* box value types */
4258 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4260 case MONO_TYPE_STRING:
4261 case MONO_TYPE_CLASS:
4262 case MONO_TYPE_ARRAY:
4263 case MONO_TYPE_SZARRAY:
4264 case MONO_TYPE_OBJECT:
4268 /* The result is an IntPtr */
4269 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4272 g_assert_not_reached ();
4276 mono_mb_emit_stloc (mb, loc_res);
4278 /* Convert back nullable-byref arguments */
4279 for (i = 0; i < sig->param_count; i++) {
4280 MonoType *t = sig->params [i];
4283 * Box the result and put it back into the array, the caller will have
4284 * to obtain it from there.
4286 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4287 mono_mb_emit_ldarg (mb, 1);
4288 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4289 mono_mb_emit_byte (mb, CEE_ADD);
4291 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4292 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4294 mono_mb_emit_byte (mb, CEE_STIND_REF);
4298 g_free (tmp_nullable_locals);
4302 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4303 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4304 gboolean virtual, gboolean need_direct_wrapper)
4307 MonoExceptionClause *clause;
4308 int loc_res, loc_exc;
4310 /* The wrapper looks like this:
4316 * } catch (Exception e) {
4324 /* allocate local 0 (object) tmp */
4325 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4326 /* allocate local 1 (object) exc */
4327 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4329 /* *exc is assumed to be initialized to NULL by the caller */
4331 mono_mb_emit_byte (mb, CEE_LDARG_2);
4332 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4337 labels [1] = mono_mb_get_label (mb);
4338 emit_thread_force_interrupt_checkpoint (mb);
4339 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4341 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4343 /* Add a try clause around the call */
4344 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4345 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4346 clause->data.catch_class = mono_defaults.exception_class;
4347 clause->try_offset = labels [1];
4348 clause->try_len = mono_mb_get_label (mb) - labels [1];
4350 clause->handler_offset = mono_mb_get_label (mb);
4353 mono_mb_emit_stloc (mb, loc_exc);
4354 mono_mb_emit_byte (mb, CEE_LDARG_2);
4355 mono_mb_emit_ldloc (mb, loc_exc);
4356 mono_mb_emit_byte (mb, CEE_STIND_REF);
4358 mono_mb_emit_branch (mb, CEE_LEAVE);
4360 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4362 mono_mb_set_clauses (mb, 1, clause);
4364 mono_mb_patch_branch (mb, labels [2]);
4365 mono_mb_emit_ldloc (mb, loc_res);
4366 mono_mb_emit_byte (mb, CEE_RET);
4371 mono_mb_patch_branch (mb, labels [0]);
4372 emit_thread_force_interrupt_checkpoint (mb);
4373 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4375 mono_mb_emit_ldloc (mb, 0);
4376 mono_mb_emit_byte (mb, CEE_RET);
4380 * generates IL code for the runtime invoke function
4381 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4383 * we also catch exceptions if exc != null
4384 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4385 * it means that the compiled code for METHOD does not have to be looked up
4386 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4387 * its METHOD argument.
4390 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4392 MonoMethodSignature *sig, *csig, *callsig;
4393 MonoMethodBuilder *mb;
4394 GHashTable *cache = NULL;
4395 MonoClass *target_klass;
4396 MonoMethod *res = NULL;
4397 static MonoMethodSignature *cctor_signature = NULL;
4398 static MonoMethodSignature *finalize_signature = NULL;
4400 gboolean need_direct_wrapper = FALSE;
4404 if (!cctor_signature) {
4405 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4406 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4408 if (!finalize_signature) {
4409 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4410 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4411 finalize_signature->hasthis = 1;
4415 need_direct_wrapper = TRUE;
4418 * Use a separate cache indexed by methods to speed things up and to avoid the
4419 * boundless mempool growth caused by the signature_dup stuff below.
4422 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4424 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4425 res = mono_marshal_find_in_cache (cache, method);
4429 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4430 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4432 * Array Get/Set/Address methods. The JIT implements them using inline code
4433 * so we need to create an invoke wrapper which calls the method directly.
4435 need_direct_wrapper = TRUE;
4438 if (method->string_ctor) {
4439 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4441 callsig = add_string_ctor_signature (method);
4442 /* Can't share this as we push a string as this */
4443 need_direct_wrapper = TRUE;
4445 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4447 * Valuetype methods receive a managed pointer as the this argument.
4448 * Create a new signature to reflect this.
4450 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4451 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4452 need_direct_wrapper = TRUE;
4454 if (method->dynamic)
4455 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4457 callsig = mono_method_signature (method);
4461 target_klass = get_wrapper_target_class (method->klass->image);
4463 /* Try to share wrappers for non-corlib methods with simple signatures */
4464 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4465 callsig = cctor_signature;
4466 target_klass = mono_defaults.object_class;
4467 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4468 callsig = finalize_signature;
4469 target_klass = mono_defaults.object_class;
4472 if (need_direct_wrapper) {
4473 /* Already searched at the start */
4475 MonoMethodSignature *tmp_sig;
4477 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4479 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4480 (GHashFunc)mono_signature_hash,
4481 (GCompareFunc)runtime_invoke_signature_equal);
4483 /* from mono_marshal_find_in_cache */
4484 mono_marshal_lock ();
4485 res = g_hash_table_lookup (cache, callsig);
4486 mono_marshal_unlock ();
4493 /* Make a copy of the signature from the image mempool */
4495 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4499 sig = mono_method_signature (method);
4501 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4503 csig->ret = &mono_defaults.object_class->byval_arg;
4504 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4505 csig->params [0] = callsig->params [0];
4507 csig->params [0] = &mono_defaults.object_class->byval_arg;
4508 csig->params [1] = &mono_defaults.int_class->byval_arg;
4509 csig->params [2] = &mono_defaults.int_class->byval_arg;
4510 csig->params [3] = &mono_defaults.int_class->byval_arg;
4512 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4513 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4516 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4518 if (need_direct_wrapper) {
4519 mb->skip_visibility = 1;
4520 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4522 /* taken from mono_mb_create_and_cache */
4523 mono_marshal_lock ();
4524 res = g_hash_table_lookup (cache, callsig);
4525 mono_marshal_unlock ();
4527 /* Somebody may have created it before us */
4530 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4532 mono_marshal_lock ();
4533 res = g_hash_table_lookup (cache, callsig);
4536 g_hash_table_insert (cache, callsig, res);
4537 /* Can't insert it into wrapper_hash since the key is a signature */
4538 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4540 mono_free_method (newm);
4542 mono_marshal_unlock ();
4545 /* end mono_mb_create_and_cache */
4554 * mono_marshal_get_runtime_invoke_dynamic:
4556 * Return a method which can be used to invoke managed methods from native code
4558 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4559 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4560 * ARGS should point to an architecture specific structure containing
4561 * the arguments and space for the return value.
4562 * The other arguments are the same as for runtime_invoke (), except that
4563 * ARGS should contain the this argument too.
4564 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4565 * is only one copy of it, which is useful in full-aot.
4568 mono_marshal_get_runtime_invoke_dynamic (void)
4570 static MonoMethod *method;
4571 MonoMethodSignature *csig;
4572 MonoExceptionClause *clause;
4573 MonoMethodBuilder *mb;
4580 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4582 csig->ret = &mono_defaults.void_class->byval_arg;
4583 csig->params [0] = &mono_defaults.int_class->byval_arg;
4584 csig->params [1] = &mono_defaults.int_class->byval_arg;
4585 csig->params [2] = &mono_defaults.int_class->byval_arg;
4586 csig->params [3] = &mono_defaults.int_class->byval_arg;
4588 name = g_strdup ("runtime_invoke_dynamic");
4589 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4592 /* allocate local 0 (object) tmp */
4593 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4594 /* allocate local 1 (object) exc */
4595 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4597 /* cond set *exc to null */
4598 mono_mb_emit_byte (mb, CEE_LDARG_1);
4599 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4600 mono_mb_emit_byte (mb, 3);
4601 mono_mb_emit_byte (mb, CEE_LDARG_1);
4602 mono_mb_emit_byte (mb, CEE_LDNULL);
4603 mono_mb_emit_byte (mb, CEE_STIND_REF);
4605 emit_thread_force_interrupt_checkpoint (mb);
4607 mono_mb_emit_byte (mb, CEE_LDARG_0);
4608 mono_mb_emit_byte (mb, CEE_LDARG_2);
4609 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4610 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4612 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4614 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4615 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4616 clause->try_len = mono_mb_get_label (mb);
4619 clause->data.filter_offset = mono_mb_get_label (mb);
4621 mono_mb_emit_byte (mb, CEE_POP);
4622 mono_mb_emit_byte (mb, CEE_LDARG_1);
4623 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4624 mono_mb_emit_byte (mb, CEE_PREFIX1);
4625 mono_mb_emit_byte (mb, CEE_CGT_UN);
4626 mono_mb_emit_byte (mb, CEE_PREFIX1);
4627 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4629 clause->handler_offset = mono_mb_get_label (mb);
4632 /* store exception */
4633 mono_mb_emit_stloc (mb, 1);
4635 mono_mb_emit_byte (mb, CEE_LDARG_1);
4636 mono_mb_emit_ldloc (mb, 1);
4637 mono_mb_emit_byte (mb, CEE_STIND_REF);
4639 mono_mb_emit_byte (mb, CEE_LDNULL);
4640 mono_mb_emit_stloc (mb, 0);
4642 /* Check for the abort exception */
4643 mono_mb_emit_ldloc (mb, 1);
4644 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4645 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4647 /* Delay the abort exception */
4648 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4650 mono_mb_patch_short_branch (mb, posna);
4651 mono_mb_emit_branch (mb, CEE_LEAVE);
4653 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4655 mono_mb_set_clauses (mb, 1, clause);
4658 mono_mb_patch_branch (mb, pos);
4659 //mono_mb_emit_ldloc (mb, 0);
4660 mono_mb_emit_byte (mb, CEE_RET);
4662 mono_loader_lock ();
4663 /* double-checked locking */
4665 method = mono_mb_create_method (mb, csig, 16);
4667 mono_loader_unlock ();
4675 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4677 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4678 klass->name_space, klass->name);
4680 mono_mb_emit_exception_marshal_directive (mb, msg);
4684 * mono_marshal_get_ldfld_remote_wrapper:
4685 * @klass: The return type
4687 * This method generates a wrapper for calling mono_load_remote_field_new.
4688 * The return type is ignored for now, as mono_load_remote_field_new () always
4689 * returns an object. In the future, to optimize some codepaths, we might
4690 * call a different function that takes a pointer to a valuetype, instead.
4693 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4695 MonoMethodSignature *sig, *csig;
4696 MonoMethodBuilder *mb;
4698 static MonoMethod* cached = NULL;
4700 mono_marshal_lock ();
4702 mono_marshal_unlock ();
4705 mono_marshal_unlock ();
4707 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4709 mb->method->save_lmf = 1;
4711 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4712 sig->params [0] = &mono_defaults.object_class->byval_arg;
4713 sig->params [1] = &mono_defaults.int_class->byval_arg;
4714 sig->params [2] = &mono_defaults.int_class->byval_arg;
4715 sig->ret = &mono_defaults.object_class->byval_arg;
4717 mono_mb_emit_ldarg (mb, 0);
4718 mono_mb_emit_ldarg (mb, 1);
4719 mono_mb_emit_ldarg (mb, 2);
4721 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4722 csig->params [0] = &mono_defaults.object_class->byval_arg;
4723 csig->params [1] = &mono_defaults.int_class->byval_arg;
4724 csig->params [2] = &mono_defaults.int_class->byval_arg;
4725 csig->ret = &mono_defaults.object_class->byval_arg;
4728 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4729 emit_thread_interrupt_checkpoint (mb);
4731 mono_mb_emit_byte (mb, CEE_RET);
4733 mono_marshal_lock ();
4735 mono_marshal_unlock ();
4738 newm = mono_mb_create_method (mb, sig, 4);
4739 mono_marshal_lock ();
4744 mono_marshal_unlock ();
4746 mono_marshal_unlock ();
4747 mono_free_method (newm);
4756 * mono_marshal_get_ldfld_wrapper:
4757 * @type: the type of the field
4759 * This method generates a function which can be use to load a field with type
4760 * @type from an object. The generated function has the following signature:
4761 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4764 mono_marshal_get_ldfld_wrapper (MonoType *type)
4766 MonoMethodSignature *sig;
4767 MonoMethodBuilder *mb;
4772 int t, pos0, pos1 = 0;
4774 type = mono_type_get_underlying_type (type);
4779 if (type->type == MONO_TYPE_SZARRAY) {
4780 klass = mono_defaults.array_class;
4781 } else if (type->type == MONO_TYPE_VALUETYPE) {
4782 klass = type->data.klass;
4783 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4784 klass = mono_defaults.object_class;
4785 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4786 klass = mono_defaults.int_class;
4787 } else if (t == MONO_TYPE_GENERICINST) {
4788 if (mono_type_generic_inst_is_valuetype (type))
4789 klass = mono_class_from_mono_type (type);
4791 klass = mono_defaults.object_class;
4793 klass = mono_class_from_mono_type (type);
4796 klass = mono_defaults.int_class;
4799 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4800 if ((res = mono_marshal_find_in_cache (cache, klass)))
4803 /* we add the %p pointer value of klass because class names are not unique */
4804 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4805 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4808 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4809 sig->params [0] = &mono_defaults.object_class->byval_arg;
4810 sig->params [1] = &mono_defaults.int_class->byval_arg;
4811 sig->params [2] = &mono_defaults.int_class->byval_arg;
4812 sig->params [3] = &mono_defaults.int_class->byval_arg;
4813 sig->ret = &klass->byval_arg;
4815 mono_mb_emit_ldarg (mb, 0);
4816 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4818 mono_mb_emit_ldarg (mb, 0);
4819 mono_mb_emit_ldarg (mb, 1);
4820 mono_mb_emit_ldarg (mb, 2);
4822 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4825 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4826 csig->params [0] = &mono_defaults.object_class->byval_arg;
4827 csig->params [1] = &mono_defaults.int_class->byval_arg;
4828 csig->params [2] = &mono_defaults.int_class->byval_arg;
4829 csig->ret = &klass->this_arg;
4832 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4833 emit_thread_interrupt_checkpoint (mb);
4836 if (klass->valuetype) {
4837 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4838 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4840 mono_mb_emit_byte (mb, CEE_RET);
4844 mono_mb_patch_branch (mb, pos0);
4846 mono_mb_emit_ldarg (mb, 0);
4847 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4848 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4849 mono_mb_emit_ldarg (mb, 3);
4850 mono_mb_emit_byte (mb, CEE_ADD);
4852 if (klass->valuetype)
4853 mono_mb_patch_branch (mb, pos1);
4858 case MONO_TYPE_BOOLEAN:
4859 case MONO_TYPE_CHAR:
4868 case MONO_TYPE_ARRAY:
4869 case MONO_TYPE_SZARRAY:
4870 case MONO_TYPE_OBJECT:
4871 case MONO_TYPE_CLASS:
4872 case MONO_TYPE_STRING:
4876 case MONO_TYPE_FNPTR:
4877 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4879 case MONO_TYPE_VALUETYPE:
4880 g_assert (!klass->enumtype);
4881 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4883 case MONO_TYPE_GENERICINST:
4884 if (mono_type_generic_inst_is_valuetype (type)) {
4885 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4887 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4891 g_warning ("type %x not implemented", type->type);
4892 g_assert_not_reached ();
4895 mono_mb_emit_byte (mb, CEE_RET);
4897 res = mono_mb_create_and_cache (cache, klass,
4898 mb, sig, sig->param_count + 16);
4905 * mono_marshal_get_ldflda_wrapper:
4906 * @type: the type of the field
4908 * This method generates a function which can be used to load a field address
4909 * from an object. The generated function has the following signature:
4910 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4913 mono_marshal_get_ldflda_wrapper (MonoType *type)
4915 MonoMethodSignature *sig;
4916 MonoMethodBuilder *mb;
4921 int t, pos0, pos1, pos2, pos3;
4923 type = mono_type_get_underlying_type (type);
4927 if (type->type == MONO_TYPE_SZARRAY) {
4928 klass = mono_defaults.array_class;
4929 } else if (type->type == MONO_TYPE_VALUETYPE) {
4930 klass = type->data.klass;
4931 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4932 t == MONO_TYPE_CLASS) {
4933 klass = mono_defaults.object_class;
4934 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4935 klass = mono_defaults.int_class;
4936 } else if (t == MONO_TYPE_GENERICINST) {
4937 if (mono_type_generic_inst_is_valuetype (type))
4938 klass = mono_class_from_mono_type (type);
4940 klass = mono_defaults.object_class;
4942 klass = mono_class_from_mono_type (type);
4945 klass = mono_defaults.int_class;
4948 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4949 if ((res = mono_marshal_find_in_cache (cache, klass)))
4952 /* we add the %p pointer value of klass because class names are not unique */
4953 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4954 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4957 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4958 sig->params [0] = &mono_defaults.object_class->byval_arg;
4959 sig->params [1] = &mono_defaults.int_class->byval_arg;
4960 sig->params [2] = &mono_defaults.int_class->byval_arg;
4961 sig->params [3] = &mono_defaults.int_class->byval_arg;
4962 sig->ret = &mono_defaults.int_class->byval_arg;
4964 /* if typeof (this) != transparent_proxy goto pos0 */
4965 mono_mb_emit_ldarg (mb, 0);
4966 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4968 /* if same_appdomain goto pos1 */
4969 mono_mb_emit_ldarg (mb, 0);
4970 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4972 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4974 /* same app domain */
4975 mono_mb_patch_branch (mb, pos1);
4977 /* if typeof (this) != contextbound goto pos2 */
4978 mono_mb_emit_ldarg (mb, 0);
4979 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4981 /* if this->rp->context == mono_context_get goto pos3 */
4982 mono_mb_emit_ldarg (mb, 0);
4983 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4984 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4985 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4986 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4987 mono_mb_emit_icall (mb, mono_context_get);
4988 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4990 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4992 mono_mb_patch_branch (mb, pos2);
4993 mono_mb_patch_branch (mb, pos3);
4995 /* return the address of the field from this->rp->unwrapped_server */
4996 mono_mb_emit_ldarg (mb, 0);
4997 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4998 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4999 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5000 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5001 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5002 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5003 mono_mb_emit_ldarg (mb, 3);
5004 mono_mb_emit_byte (mb, CEE_ADD);
5005 mono_mb_emit_byte (mb, CEE_RET);
5007 /* not a proxy: return the address of the field directly */
5008 mono_mb_patch_branch (mb, pos0);
5010 mono_mb_emit_ldarg (mb, 0);
5011 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5012 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5013 mono_mb_emit_ldarg (mb, 3);
5014 mono_mb_emit_byte (mb, CEE_ADD);
5016 mono_mb_emit_byte (mb, CEE_RET);
5018 res = mono_mb_create_and_cache (cache, klass,
5019 mb, sig, sig->param_count + 16);
5026 * mono_marshal_get_stfld_remote_wrapper:
5027 * klass: The type of the field
5029 * This function generates a wrapper for calling mono_store_remote_field_new
5030 * with the appropriate signature.
5031 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5032 * klass argument anymore.
5035 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5037 MonoMethodSignature *sig, *csig;
5038 MonoMethodBuilder *mb;
5040 static MonoMethod *cached = NULL;
5042 mono_marshal_lock ();
5044 mono_marshal_unlock ();
5047 mono_marshal_unlock ();
5049 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5051 mb->method->save_lmf = 1;
5053 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5054 sig->params [0] = &mono_defaults.object_class->byval_arg;
5055 sig->params [1] = &mono_defaults.int_class->byval_arg;
5056 sig->params [2] = &mono_defaults.int_class->byval_arg;
5057 sig->params [3] = &mono_defaults.object_class->byval_arg;
5058 sig->ret = &mono_defaults.void_class->byval_arg;
5060 mono_mb_emit_ldarg (mb, 0);
5061 mono_mb_emit_ldarg (mb, 1);
5062 mono_mb_emit_ldarg (mb, 2);
5063 mono_mb_emit_ldarg (mb, 3);
5065 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5066 csig->params [0] = &mono_defaults.object_class->byval_arg;
5067 csig->params [1] = &mono_defaults.int_class->byval_arg;
5068 csig->params [2] = &mono_defaults.int_class->byval_arg;
5069 csig->params [3] = &mono_defaults.object_class->byval_arg;
5070 csig->ret = &mono_defaults.void_class->byval_arg;
5073 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5074 emit_thread_interrupt_checkpoint (mb);
5076 mono_mb_emit_byte (mb, CEE_RET);
5078 mono_marshal_lock ();
5080 mono_marshal_unlock ();
5083 newm = mono_mb_create_method (mb, sig, 6);
5084 mono_marshal_lock ();
5089 mono_marshal_unlock ();
5091 mono_marshal_unlock ();
5092 mono_free_method (newm);
5101 * mono_marshal_get_stfld_wrapper:
5102 * @type: the type of the field
5104 * This method generates a function which can be use to store a field with type
5105 * @type. The generated function has the following signature:
5106 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5109 mono_marshal_get_stfld_wrapper (MonoType *type)
5111 MonoMethodSignature *sig;
5112 MonoMethodBuilder *mb;
5119 type = mono_type_get_underlying_type (type);
5123 if (type->type == MONO_TYPE_SZARRAY) {
5124 klass = mono_defaults.array_class;
5125 } else if (type->type == MONO_TYPE_VALUETYPE) {
5126 klass = type->data.klass;
5127 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5128 klass = mono_defaults.object_class;
5129 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5130 klass = mono_defaults.int_class;
5131 } else if (t == MONO_TYPE_GENERICINST) {
5132 if (mono_type_generic_inst_is_valuetype (type))
5133 klass = mono_class_from_mono_type (type);
5135 klass = mono_defaults.object_class;
5137 klass = mono_class_from_mono_type (type);
5140 klass = mono_defaults.int_class;
5143 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5144 if ((res = mono_marshal_find_in_cache (cache, klass)))
5147 /* we add the %p pointer value of klass because class names are not unique */
5148 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5149 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5152 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5153 sig->params [0] = &mono_defaults.object_class->byval_arg;
5154 sig->params [1] = &mono_defaults.int_class->byval_arg;
5155 sig->params [2] = &mono_defaults.int_class->byval_arg;
5156 sig->params [3] = &mono_defaults.int_class->byval_arg;
5157 sig->params [4] = &klass->byval_arg;
5158 sig->ret = &mono_defaults.void_class->byval_arg;
5160 mono_mb_emit_ldarg (mb, 0);
5161 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5163 mono_mb_emit_ldarg (mb, 0);
5164 mono_mb_emit_ldarg (mb, 1);
5165 mono_mb_emit_ldarg (mb, 2);
5166 mono_mb_emit_ldarg (mb, 4);
5167 if (klass->valuetype)
5168 mono_mb_emit_op (mb, CEE_BOX, klass);
5170 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5172 mono_mb_emit_byte (mb, CEE_RET);
5174 mono_mb_patch_branch (mb, pos);
5176 mono_mb_emit_ldarg (mb, 0);
5177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5178 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5179 mono_mb_emit_ldarg (mb, 3);
5180 mono_mb_emit_byte (mb, CEE_ADD);
5181 mono_mb_emit_ldarg (mb, 4);
5186 case MONO_TYPE_BOOLEAN:
5187 case MONO_TYPE_CHAR:
5196 case MONO_TYPE_ARRAY:
5197 case MONO_TYPE_SZARRAY:
5198 case MONO_TYPE_OBJECT:
5199 case MONO_TYPE_CLASS:
5200 case MONO_TYPE_STRING:
5204 case MONO_TYPE_FNPTR:
5205 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5207 case MONO_TYPE_VALUETYPE:
5208 g_assert (!klass->enumtype);
5209 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5211 case MONO_TYPE_GENERICINST:
5212 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5215 g_warning ("type %x not implemented", type->type);
5216 g_assert_not_reached ();
5219 mono_mb_emit_byte (mb, CEE_RET);
5221 res = mono_mb_create_and_cache (cache, klass,
5222 mb, sig, sig->param_count + 16);
5229 * generates IL code for the icall wrapper (the generated method
5230 * calls the unmanaged code in func)
5233 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5235 MonoMethodSignature *csig, *csig2;
5236 MonoMethodBuilder *mb;
5240 g_assert (sig->pinvoke);
5242 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5244 mb->method->save_lmf = 1;
5246 /* Add an explicit this argument */
5248 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5250 csig2 = signature_dup (mono_defaults.corlib, sig);
5253 mono_mb_emit_byte (mb, CEE_LDARG_0);
5255 for (i = 0; i < sig->param_count; i++)
5256 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5258 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5259 if (check_exceptions)
5260 emit_thread_interrupt_checkpoint (mb);
5261 mono_mb_emit_byte (mb, CEE_RET);
5263 csig = signature_dup (mono_defaults.corlib, sig);
5265 if (csig->call_convention == MONO_CALL_VARARG)
5266 csig->call_convention = 0;
5268 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5275 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5276 MonoMarshalSpec *spec,
5277 int conv_arg, MonoType **conv_arg_type,
5278 MarshalAction action)
5282 static MonoClass *ICustomMarshaler = NULL;
5283 static MonoMethod *cleanup_native, *cleanup_managed;
5284 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5285 MonoMethod *get_instance;
5286 MonoMethodBuilder *mb = m->mb;
5287 char *exception_msg = NULL;
5291 if (!ICustomMarshaler) {
5292 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5293 g_assert (ICustomMarshaler);
5295 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5296 g_assert (cleanup_native);
5297 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5298 g_assert (cleanup_managed);
5299 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5300 g_assert (marshal_managed_to_native);
5301 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5302 g_assert (marshal_native_to_managed);
5305 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5306 g_assert (mtype != NULL);
5307 mklass = mono_class_from_mono_type (mtype);
5308 g_assert (mklass != NULL);
5310 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5311 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5313 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5315 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5316 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5317 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5318 (get_sig->params [0]->type != MONO_TYPE_STRING))
5319 get_instance = NULL;
5323 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);
5325 /* Throw exception and emit compensation code if neccesary */
5326 if (exception_msg) {
5328 case MARSHAL_ACTION_CONV_IN:
5329 case MARSHAL_ACTION_CONV_RESULT:
5330 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5331 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5332 mono_mb_emit_byte (mb, CEE_POP);
5334 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5335 g_free (exception_msg);
5338 case MARSHAL_ACTION_PUSH:
5339 mono_mb_emit_byte (mb, CEE_LDNULL);
5347 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5348 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5351 case MARSHAL_ACTION_CONV_IN:
5353 case MONO_TYPE_CLASS:
5354 case MONO_TYPE_OBJECT:
5355 case MONO_TYPE_STRING:
5356 case MONO_TYPE_ARRAY:
5357 case MONO_TYPE_SZARRAY:
5358 case MONO_TYPE_VALUETYPE:
5362 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5363 g_assert_not_reached ();
5367 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5369 mono_mb_emit_byte (mb, CEE_LDNULL);
5370 mono_mb_emit_stloc (mb, conv_arg);
5372 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5375 /* Minic MS.NET behavior */
5376 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5379 /* Check for null */
5380 mono_mb_emit_ldarg (mb, argnum);
5382 mono_mb_emit_byte (mb, CEE_LDIND_I);
5383 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5385 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5387 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5389 mono_mb_emit_ldarg (mb, argnum);
5391 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5393 if (t->type == MONO_TYPE_VALUETYPE) {
5395 * Since we can't determine the type of the argument, we
5396 * will assume the unmanaged function takes a pointer.
5398 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5400 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5403 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5404 mono_mb_emit_stloc (mb, conv_arg);
5406 mono_mb_patch_branch (mb, pos2);
5409 case MARSHAL_ACTION_CONV_OUT:
5410 /* Check for null */
5411 mono_mb_emit_ldloc (mb, conv_arg);
5412 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5415 mono_mb_emit_ldarg (mb, argnum);
5417 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5419 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5421 mono_mb_emit_ldloc (mb, conv_arg);
5422 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5423 mono_mb_emit_byte (mb, CEE_STIND_REF);
5424 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5425 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5427 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5429 mono_mb_emit_ldloc (mb, conv_arg);
5430 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5432 /* We have nowhere to store the result */
5433 mono_mb_emit_byte (mb, CEE_POP);
5436 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5438 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5440 mono_mb_emit_ldloc (mb, conv_arg);
5442 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5444 mono_mb_patch_branch (mb, pos2);
5447 case MARSHAL_ACTION_PUSH:
5449 mono_mb_emit_ldloc_addr (mb, conv_arg);
5451 mono_mb_emit_ldloc (mb, conv_arg);
5454 case MARSHAL_ACTION_CONV_RESULT:
5455 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5457 mono_mb_emit_stloc (mb, 3);
5459 mono_mb_emit_ldloc (mb, 3);
5460 mono_mb_emit_stloc (mb, loc1);
5462 /* Check for null */
5463 mono_mb_emit_ldloc (mb, 3);
5464 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5466 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5468 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5469 mono_mb_emit_byte (mb, CEE_DUP);
5471 mono_mb_emit_ldloc (mb, 3);
5472 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5473 mono_mb_emit_stloc (mb, 3);
5475 mono_mb_emit_ldloc (mb, loc1);
5476 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5478 mono_mb_patch_branch (mb, pos2);
5481 case MARSHAL_ACTION_MANAGED_CONV_IN:
5482 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5484 mono_mb_emit_byte (mb, CEE_LDNULL);
5485 mono_mb_emit_stloc (mb, conv_arg);
5487 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5490 /* Check for null */
5491 mono_mb_emit_ldarg (mb, argnum);
5493 mono_mb_emit_byte (mb, CEE_LDIND_I);
5494 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5496 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5497 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5499 mono_mb_emit_ldarg (mb, argnum);
5501 mono_mb_emit_byte (mb, CEE_LDIND_I);
5503 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5504 mono_mb_emit_stloc (mb, conv_arg);
5506 mono_mb_patch_branch (mb, pos2);
5509 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5510 g_assert (!t->byref);
5512 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5514 mono_mb_emit_stloc (mb, 3);
5516 mono_mb_emit_ldloc (mb, 3);
5517 mono_mb_emit_stloc (mb, loc1);
5519 /* Check for null */
5520 mono_mb_emit_ldloc (mb, 3);
5521 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5523 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5524 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5525 mono_mb_emit_byte (mb, CEE_DUP);
5527 mono_mb_emit_ldloc (mb, 3);
5528 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5529 mono_mb_emit_stloc (mb, 3);
5531 mono_mb_emit_ldloc (mb, loc1);
5532 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5534 mono_mb_patch_branch (mb, pos2);
5537 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5539 /* Check for null */
5540 mono_mb_emit_ldloc (mb, conv_arg);
5541 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5544 mono_mb_emit_ldarg (mb, argnum);
5546 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5548 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5550 mono_mb_emit_ldloc (mb, conv_arg);
5551 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5552 mono_mb_emit_byte (mb, CEE_STIND_I);
5555 /* Call CleanUpManagedData */
5556 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5558 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5560 mono_mb_emit_ldloc (mb, conv_arg);
5561 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5563 mono_mb_patch_branch (mb, pos2);
5567 g_assert_not_reached ();
5574 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5575 MonoMarshalSpec *spec,
5576 int conv_arg, MonoType **conv_arg_type,
5577 MarshalAction action)
5579 MonoMethodBuilder *mb = m->mb;
5582 case MARSHAL_ACTION_CONV_IN: {
5583 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5585 g_assert (t->type == MONO_TYPE_OBJECT);
5586 g_assert (!t->byref);
5588 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5589 mono_mb_emit_ldarg (mb, argnum);
5590 mono_mb_emit_icon (mb, encoding);
5591 mono_mb_emit_icon (mb, t->attrs);
5592 mono_mb_emit_icall (mb, mono_marshal_asany);
5593 mono_mb_emit_stloc (mb, conv_arg);
5597 case MARSHAL_ACTION_PUSH:
5598 mono_mb_emit_ldloc (mb, conv_arg);
5601 case MARSHAL_ACTION_CONV_OUT: {
5602 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5604 mono_mb_emit_ldarg (mb, argnum);
5605 mono_mb_emit_ldloc (mb, conv_arg);
5606 mono_mb_emit_icon (mb, encoding);
5607 mono_mb_emit_icon (mb, t->attrs);
5608 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5613 g_assert_not_reached ();
5620 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5621 MonoMarshalSpec *spec,
5622 int conv_arg, MonoType **conv_arg_type,
5623 MarshalAction action)
5625 MonoMethodBuilder *mb = m->mb;
5626 MonoClass *klass, *date_time_class;
5629 klass = mono_class_from_mono_type (t);
5631 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5634 case MARSHAL_ACTION_CONV_IN:
5635 if (klass == date_time_class) {
5636 /* Convert it to an OLE DATE type */
5637 static MonoMethod *to_oadate;
5640 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5641 g_assert (to_oadate);
5643 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5646 mono_mb_emit_ldarg (mb, argnum);
5647 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5650 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5652 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5654 mono_mb_emit_ldarg_addr (mb, argnum);
5655 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5656 mono_mb_emit_stloc (mb, conv_arg);
5660 mono_mb_patch_branch (mb, pos);
5664 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5665 klass->blittable || klass->enumtype)
5668 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5670 /* store the address of the source into local variable 0 */
5672 mono_mb_emit_ldarg (mb, argnum);
5674 mono_mb_emit_ldarg_addr (mb, argnum);
5676 mono_mb_emit_stloc (mb, 0);
5678 /* allocate space for the native struct and
5679 * store the address into local variable 1 (dest) */
5680 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5681 mono_mb_emit_byte (mb, CEE_PREFIX1);
5682 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5683 mono_mb_emit_stloc (mb, conv_arg);
5686 mono_mb_emit_ldloc (mb, 0);
5687 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5690 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5692 mono_mb_emit_ldloc (mb, conv_arg);
5693 mono_mb_emit_stloc (mb, 1);
5695 /* emit valuetype conversion code */
5696 emit_struct_conv (mb, klass, FALSE);
5700 mono_mb_patch_branch (mb, pos);
5703 case MARSHAL_ACTION_PUSH:
5704 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5706 g_assert (!t->byref);
5708 /* Have to change the signature since the vtype is passed byref */
5709 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5711 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5712 klass->blittable || klass->enumtype)
5713 mono_mb_emit_ldarg_addr (mb, argnum);
5715 mono_mb_emit_ldloc (mb, conv_arg);
5719 if (klass == date_time_class) {
5721 mono_mb_emit_ldloc_addr (mb, conv_arg);
5723 mono_mb_emit_ldloc (mb, conv_arg);
5727 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5728 klass->blittable || klass->enumtype) {
5729 mono_mb_emit_ldarg (mb, argnum);
5732 mono_mb_emit_ldloc (mb, conv_arg);
5734 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5735 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5739 case MARSHAL_ACTION_CONV_OUT:
5740 if (klass == date_time_class) {
5741 /* Convert from an OLE DATE type */
5742 static MonoMethod *from_oadate;
5747 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5749 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5750 g_assert (from_oadate);
5752 mono_mb_emit_ldarg (mb, argnum);
5753 mono_mb_emit_ldloc (mb, conv_arg);
5754 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5755 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5760 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5761 klass->blittable || klass->enumtype)
5765 /* dst = argument */
5766 mono_mb_emit_ldarg (mb, argnum);
5767 mono_mb_emit_stloc (mb, 1);
5769 mono_mb_emit_ldloc (mb, 1);
5770 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5772 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5773 /* src = tmp_locals [i] */
5774 mono_mb_emit_ldloc (mb, conv_arg);
5775 mono_mb_emit_stloc (mb, 0);
5777 /* emit valuetype conversion code */
5778 emit_struct_conv (mb, klass, TRUE);
5782 emit_struct_free (mb, klass, conv_arg);
5785 mono_mb_patch_branch (mb, pos);
5788 case MARSHAL_ACTION_CONV_RESULT:
5789 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5791 mono_mb_emit_stloc (mb, 3);
5795 /* load pointer to returned value type */
5796 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5797 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5798 /* store the address of the source into local variable 0 */
5799 mono_mb_emit_stloc (mb, 0);
5801 mono_mb_emit_ldloc_addr (mb, 3);
5802 mono_mb_emit_stloc (mb, 1);
5804 /* emit valuetype conversion code */
5805 emit_struct_conv (mb, klass, TRUE);
5808 case MARSHAL_ACTION_MANAGED_CONV_IN:
5809 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5810 klass->blittable || klass->enumtype) {
5815 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5817 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5821 mono_mb_emit_ldarg (mb, argnum);
5823 mono_mb_emit_ldarg_addr (mb, argnum);
5824 mono_mb_emit_stloc (mb, 0);
5827 mono_mb_emit_ldloc (mb, 0);
5828 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5831 mono_mb_emit_ldloc_addr (mb, conv_arg);
5832 mono_mb_emit_stloc (mb, 1);
5834 /* emit valuetype conversion code */
5835 emit_struct_conv (mb, klass, TRUE);
5838 mono_mb_patch_branch (mb, pos);
5841 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5842 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5843 klass->blittable || klass->enumtype) {
5847 /* Check for null */
5848 mono_mb_emit_ldarg (mb, argnum);
5849 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5852 mono_mb_emit_ldloc_addr (mb, conv_arg);
5853 mono_mb_emit_stloc (mb, 0);
5856 mono_mb_emit_ldarg (mb, argnum);
5857 mono_mb_emit_stloc (mb, 1);
5859 /* emit valuetype conversion code */
5860 emit_struct_conv (mb, klass, FALSE);
5862 mono_mb_patch_branch (mb, pos2);
5865 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5866 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5867 klass->blittable || klass->enumtype) {
5868 mono_mb_emit_stloc (mb, 3);
5873 /* load pointer to returned value type */
5874 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5875 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5877 /* store the address of the source into local variable 0 */
5878 mono_mb_emit_stloc (mb, 0);
5879 /* allocate space for the native struct and
5880 * store the address into dst_ptr */
5881 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5882 m->retobj_class = klass;
5883 g_assert (m->retobj_var);
5884 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5885 mono_mb_emit_byte (mb, CEE_CONV_I);
5886 mono_mb_emit_icall (mb, mono_marshal_alloc);
5887 mono_mb_emit_stloc (mb, 1);
5888 mono_mb_emit_ldloc (mb, 1);
5889 mono_mb_emit_stloc (mb, m->retobj_var);
5891 /* emit valuetype conversion code */
5892 emit_struct_conv (mb, klass, FALSE);
5896 g_assert_not_reached ();
5903 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5904 MonoMarshalSpec *spec,
5905 int conv_arg, MonoType **conv_arg_type,
5906 MarshalAction action)
5908 MonoMethodBuilder *mb = m->mb;
5909 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5910 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5914 case MARSHAL_ACTION_CONV_IN:
5915 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5916 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5919 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5922 mono_mb_emit_ldarg (mb, argnum);
5923 mono_mb_emit_byte (mb, CEE_LDIND_I);
5925 mono_mb_emit_ldarg (mb, argnum);
5929 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5930 MonoException *exc = mono_get_exception_not_implemented (msg);
5931 g_warning ("%s", msg);
5933 mono_raise_exception (exc);
5936 mono_mb_emit_icall (mb, conv_to_icall (conv));
5938 mono_mb_emit_stloc (mb, conv_arg);
5941 case MARSHAL_ACTION_CONV_OUT:
5942 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5944 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5945 mono_mb_emit_exception_marshal_directive (mb, msg);
5949 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5950 mono_mb_emit_ldarg (mb, argnum);
5951 mono_mb_emit_ldloc (mb, conv_arg);
5952 mono_mb_emit_icall (mb, conv_to_icall (conv));
5953 mono_mb_emit_byte (mb, CEE_STIND_REF);
5956 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5957 mono_mb_emit_ldloc (mb, conv_arg);
5958 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5959 mono_mb_emit_icall (mb, mono_free_bstr);
5961 mono_mb_emit_icall (mb, mono_marshal_free);
5965 case MARSHAL_ACTION_PUSH:
5967 mono_mb_emit_ldloc_addr (mb, conv_arg);
5969 mono_mb_emit_ldloc (mb, conv_arg);
5972 case MARSHAL_ACTION_CONV_RESULT:
5973 mono_mb_emit_stloc (mb, 0);
5975 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5977 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5978 mono_mb_emit_exception_marshal_directive (mb, msg);
5982 mono_mb_emit_ldloc (mb, 0);
5983 mono_mb_emit_icall (mb, conv_to_icall (conv));
5984 mono_mb_emit_stloc (mb, 3);
5986 /* free the string */
5987 mono_mb_emit_ldloc (mb, 0);
5988 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5989 mono_mb_emit_icall (mb, mono_free_bstr);
5991 mono_mb_emit_icall (mb, mono_marshal_free);
5994 case MARSHAL_ACTION_MANAGED_CONV_IN:
5995 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5997 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5999 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6001 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6002 mono_mb_emit_exception_marshal_directive (mb, msg);
6006 mono_mb_emit_ldarg (mb, argnum);
6008 mono_mb_emit_byte (mb, CEE_LDIND_I);
6009 mono_mb_emit_icall (mb, conv_to_icall (conv));
6010 mono_mb_emit_stloc (mb, conv_arg);
6013 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6016 mono_mb_emit_ldarg (mb, argnum);
6017 mono_mb_emit_ldloc (mb, conv_arg);
6018 mono_mb_emit_icall (mb, conv_to_icall (conv));
6019 mono_mb_emit_byte (mb, CEE_STIND_I);
6024 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6025 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6026 /* We need to make a copy so the caller is able to free it */
6027 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6029 mono_mb_emit_icall (mb, conv_to_icall (conv));
6030 mono_mb_emit_stloc (mb, 3);
6034 g_assert_not_reached ();
6041 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6042 MonoMarshalSpec *spec, int conv_arg,
6043 MonoType **conv_arg_type, MarshalAction action)
6045 MonoMethodBuilder *mb = m->mb;
6048 case MARSHAL_ACTION_CONV_IN: {
6049 MonoType *intptr_type;
6050 int dar_release_slot, pos;
6052 intptr_type = &mono_defaults.int_class->byval_arg;
6053 conv_arg = mono_mb_add_local (mb, intptr_type);
6054 *conv_arg_type = intptr_type;
6056 if (!sh_dangerous_add_ref)
6057 init_safe_handle ();
6059 mono_mb_emit_ldarg (mb, argnum);
6060 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6061 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6063 mono_mb_patch_branch (mb, pos);
6066 * My tests in show that ref SafeHandles are not really
6067 * passed as ref objects. Instead a NULL is passed as the
6070 mono_mb_emit_icon (mb, 0);
6071 mono_mb_emit_stloc (mb, conv_arg);
6075 /* Create local to hold the ref parameter to DangerousAddRef */
6076 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6078 /* set release = false; */
6079 mono_mb_emit_icon (mb, 0);
6080 mono_mb_emit_stloc (mb, dar_release_slot);
6082 /* safehandle.DangerousAddRef (ref release) */
6083 mono_mb_emit_ldarg (mb, argnum);
6084 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6085 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6087 /* Pull the handle field from SafeHandle */
6088 mono_mb_emit_ldarg (mb, argnum);
6089 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6090 mono_mb_emit_byte (mb, CEE_LDIND_I);
6091 mono_mb_emit_stloc (mb, conv_arg);
6096 case MARSHAL_ACTION_PUSH:
6098 mono_mb_emit_ldloc_addr (mb, conv_arg);
6100 mono_mb_emit_ldloc (mb, conv_arg);
6103 case MARSHAL_ACTION_CONV_OUT: {
6104 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6105 int dar_release_slot = conv_arg + 1;
6108 if (!sh_dangerous_release)
6109 init_safe_handle ();
6115 * My tests indicate that ref SafeHandles parameters are not actually
6116 * passed by ref, but instead a new Handle is created regardless of
6117 * whether a change happens in the unmanaged side.
6119 * Also, the Handle is created before calling into unmanaged code,
6120 * but we do not support that mechanism (getting to the original
6121 * handle) and it makes no difference where we create this
6123 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6125 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6128 /* refval = new SafeHandleDerived ()*/
6129 mono_mb_emit_ldarg (mb, argnum);
6130 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6131 mono_mb_emit_byte (mb, CEE_STIND_REF);
6133 /* refval.handle = returned_handle */
6134 mono_mb_emit_ldarg (mb, argnum);
6135 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6136 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6137 mono_mb_emit_ldloc (mb, conv_arg);
6138 mono_mb_emit_byte (mb, CEE_STIND_I);
6140 mono_mb_emit_ldloc (mb, dar_release_slot);
6141 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6142 mono_mb_emit_ldarg (mb, argnum);
6143 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6144 mono_mb_patch_branch (mb, label_next);
6149 case MARSHAL_ACTION_CONV_RESULT: {
6150 MonoMethod *ctor = NULL;
6151 int intptr_handle_slot;
6153 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6154 mono_mb_emit_byte (mb, CEE_POP);
6155 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6159 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6161 mono_mb_emit_byte (mb, CEE_POP);
6162 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6165 /* Store the IntPtr results into a local */
6166 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6167 mono_mb_emit_stloc (mb, intptr_handle_slot);
6169 /* Create return value */
6170 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6171 mono_mb_emit_stloc (mb, 3);
6173 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6174 mono_mb_emit_ldloc (mb, 3);
6175 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6176 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6177 mono_mb_emit_byte (mb, CEE_STIND_I);
6181 case MARSHAL_ACTION_MANAGED_CONV_IN:
6182 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6185 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6186 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6189 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6190 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6193 printf ("Unhandled case for MarshalAction: %d\n", action);
6200 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6201 MonoMarshalSpec *spec, int conv_arg,
6202 MonoType **conv_arg_type, MarshalAction action)
6204 MonoMethodBuilder *mb = m->mb;
6207 case MARSHAL_ACTION_CONV_IN: {
6208 MonoType *intptr_type;
6210 intptr_type = &mono_defaults.int_class->byval_arg;
6211 conv_arg = mono_mb_add_local (mb, intptr_type);
6212 *conv_arg_type = intptr_type;
6215 mono_mb_emit_exception_marshal_directive (mb,
6216 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6219 mono_mb_emit_ldarg_addr (mb, argnum);
6220 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6221 mono_mb_emit_byte (mb, CEE_ADD);
6222 mono_mb_emit_byte (mb, CEE_LDIND_I);
6223 mono_mb_emit_stloc (mb, conv_arg);
6227 case MARSHAL_ACTION_PUSH:
6228 mono_mb_emit_ldloc (mb, conv_arg);
6231 case MARSHAL_ACTION_CONV_OUT: {
6232 /* no resource release required */
6236 case MARSHAL_ACTION_CONV_RESULT: {
6237 mono_mb_emit_exception_marshal_directive (mb,
6238 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6242 case MARSHAL_ACTION_MANAGED_CONV_IN:
6243 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6246 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6247 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6250 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6251 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6254 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6261 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6262 MonoMarshalSpec *spec,
6263 int conv_arg, MonoType **conv_arg_type,
6264 MarshalAction action)
6266 MonoMethodBuilder *mb = m->mb;
6267 MonoClass *klass = mono_class_from_mono_type (t);
6271 case MARSHAL_ACTION_CONV_IN:
6272 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6273 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6275 m->orig_conv_args [argnum] = 0;
6277 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6278 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6279 mono_mb_emit_exception_marshal_directive (mb, msg);
6283 if (klass->delegate) {
6285 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6286 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6287 mono_mb_emit_exception_marshal_directive (mb, msg);
6289 mono_mb_emit_byte (mb, CEE_LDNULL);
6290 mono_mb_emit_stloc (mb, conv_arg);
6292 mono_mb_emit_ldarg (mb, argnum);
6293 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6294 mono_mb_emit_stloc (mb, conv_arg);
6296 } else if (klass == mono_defaults.stringbuilder_class) {
6297 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6298 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6301 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6302 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6303 mono_mb_emit_exception_marshal_directive (mb, msg);
6308 mono_mb_emit_ldarg (mb, argnum);
6311 mono_mb_emit_icall (mb, conv_to_icall (conv));
6313 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6314 MonoException *exc = mono_get_exception_not_implemented (msg);
6315 g_warning ("%s", msg);
6317 mono_raise_exception (exc);
6320 mono_mb_emit_stloc (mb, conv_arg);
6321 } else if (klass->blittable) {
6322 mono_mb_emit_byte (mb, CEE_LDNULL);
6323 mono_mb_emit_stloc (mb, conv_arg);
6325 mono_mb_emit_ldarg (mb, argnum);
6326 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6328 mono_mb_emit_ldarg (mb, argnum);
6329 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6330 mono_mb_emit_stloc (mb, conv_arg);
6332 mono_mb_patch_branch (mb, pos);
6335 mono_mb_emit_byte (mb, CEE_LDNULL);
6336 mono_mb_emit_stloc (mb, conv_arg);
6339 /* we dont need any conversions for out parameters */
6340 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6343 mono_mb_emit_ldarg (mb, argnum);
6344 mono_mb_emit_byte (mb, CEE_LDIND_I);
6347 mono_mb_emit_ldarg (mb, argnum);
6348 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6349 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6352 /* store the address of the source into local variable 0 */
6353 mono_mb_emit_stloc (mb, 0);
6354 mono_mb_emit_ldloc (mb, 0);
6355 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6357 /* allocate space for the native struct and store the address */
6358 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6359 mono_mb_emit_byte (mb, CEE_PREFIX1);
6360 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6361 mono_mb_emit_stloc (mb, conv_arg);
6364 /* Need to store the original buffer so we can free it later */
6365 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6366 mono_mb_emit_ldloc (mb, conv_arg);
6367 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6370 /* set the src_ptr */
6371 mono_mb_emit_ldloc (mb, 0);
6372 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6373 mono_mb_emit_stloc (mb, 0);
6376 mono_mb_emit_ldloc (mb, conv_arg);
6377 mono_mb_emit_stloc (mb, 1);
6379 /* emit valuetype conversion code */
6380 emit_struct_conv (mb, klass, FALSE);
6382 mono_mb_patch_branch (mb, pos);
6386 case MARSHAL_ACTION_CONV_OUT:
6387 if (klass == mono_defaults.stringbuilder_class) {
6389 MonoMarshalNative encoding;
6390 MonoMarshalConv conv;
6392 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6393 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6395 g_assert (encoding != -1);
6398 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6402 mono_mb_emit_ldarg (mb, argnum);
6403 mono_mb_emit_ldloc (mb, conv_arg);
6406 case MONO_NATIVE_LPWSTR:
6407 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6409 case MONO_NATIVE_LPSTR:
6410 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6413 g_assert_not_reached ();
6416 mono_mb_emit_byte (mb, CEE_STIND_REF);
6418 mono_mb_emit_ldarg (mb, argnum);
6419 mono_mb_emit_ldloc (mb, conv_arg);
6421 mono_mb_emit_icall (mb, conv_to_icall (conv));
6425 mono_mb_emit_ldloc (mb, conv_arg);
6426 mono_mb_emit_icall (mb, mono_marshal_free);
6431 if (klass->delegate) {
6433 mono_mb_emit_ldarg (mb, argnum);
6434 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6435 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6436 mono_mb_emit_ldloc (mb, conv_arg);
6437 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6438 mono_mb_emit_byte (mb, CEE_STIND_REF);
6443 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6444 /* allocate a new object */
6445 mono_mb_emit_ldarg (mb, argnum);
6446 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6447 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6448 mono_mb_emit_byte (mb, CEE_STIND_REF);
6451 /* dst = *argument */
6452 mono_mb_emit_ldarg (mb, argnum);
6455 mono_mb_emit_byte (mb, CEE_LDIND_I);
6457 mono_mb_emit_stloc (mb, 1);
6459 mono_mb_emit_ldloc (mb, 1);
6460 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6462 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6463 mono_mb_emit_ldloc (mb, 1);
6464 mono_mb_emit_icon (mb, sizeof (MonoObject));
6465 mono_mb_emit_byte (mb, CEE_ADD);
6466 mono_mb_emit_stloc (mb, 1);
6468 /* src = tmp_locals [i] */
6469 mono_mb_emit_ldloc (mb, conv_arg);
6470 mono_mb_emit_stloc (mb, 0);
6472 /* emit valuetype conversion code */
6473 emit_struct_conv (mb, klass, TRUE);
6475 /* Free the structure returned by the native code */
6476 emit_struct_free (mb, klass, conv_arg);
6478 if (m->orig_conv_args [argnum]) {
6480 * If the native function changed the pointer, then free
6481 * the original structure plus the new pointer.
6483 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6484 mono_mb_emit_ldloc (mb, conv_arg);
6485 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6487 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6488 g_assert (m->orig_conv_args [argnum]);
6490 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6493 mono_mb_emit_ldloc (mb, conv_arg);
6494 mono_mb_emit_icall (mb, g_free);
6496 mono_mb_patch_branch (mb, pos2);
6500 /* Free the original structure passed to native code */
6501 emit_struct_free (mb, klass, conv_arg);
6503 mono_mb_patch_branch (mb, pos);
6506 case MARSHAL_ACTION_PUSH:
6508 mono_mb_emit_ldloc_addr (mb, conv_arg);
6510 mono_mb_emit_ldloc (mb, conv_arg);
6513 case MARSHAL_ACTION_CONV_RESULT:
6514 if (klass->delegate) {
6515 g_assert (!t->byref);
6516 mono_mb_emit_stloc (mb, 0);
6517 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6518 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6519 mono_mb_emit_ldloc (mb, 0);
6520 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6521 mono_mb_emit_stloc (mb, 3);
6524 mono_mb_emit_stloc (mb, 0);
6526 /* Make a copy since emit_conv modifies local 0 */
6527 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6528 mono_mb_emit_ldloc (mb, 0);
6529 mono_mb_emit_stloc (mb, loc);
6531 mono_mb_emit_byte (mb, CEE_LDNULL);
6532 mono_mb_emit_stloc (mb, 3);
6534 mono_mb_emit_ldloc (mb, 0);
6535 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6537 /* allocate result object */
6539 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6540 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6541 mono_mb_emit_stloc (mb, 3);
6545 mono_mb_emit_ldloc (mb, 3);
6546 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6547 mono_mb_emit_stloc (mb, 1);
6549 /* emit conversion code */
6550 emit_struct_conv (mb, klass, TRUE);
6552 emit_struct_free (mb, klass, loc);
6554 /* Free the pointer allocated by unmanaged code */
6555 mono_mb_emit_ldloc (mb, loc);
6556 mono_mb_emit_icall (mb, g_free);
6557 mono_mb_patch_branch (mb, pos);
6561 case MARSHAL_ACTION_MANAGED_CONV_IN:
6562 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6564 if (klass->delegate) {
6565 g_assert (!t->byref);
6566 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6567 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6568 mono_mb_emit_ldarg (mb, argnum);
6569 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6570 mono_mb_emit_stloc (mb, conv_arg);
6574 if (klass == mono_defaults.stringbuilder_class) {
6575 MonoMarshalNative encoding;
6577 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6580 g_assert (encoding == MONO_NATIVE_LPSTR);
6582 g_assert (!t->byref);
6583 g_assert (encoding != -1);
6585 mono_mb_emit_ldarg (mb, argnum);
6586 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6587 mono_mb_emit_stloc (mb, conv_arg);
6591 /* The class can not have an automatic layout */
6592 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6593 mono_mb_emit_auto_layout_exception (mb, klass);
6597 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6598 mono_mb_emit_byte (mb, CEE_LDNULL);
6599 mono_mb_emit_stloc (mb, conv_arg);
6604 mono_mb_emit_ldarg (mb, argnum);
6608 /* Check for NULL and raise an exception */
6609 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6611 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6613 mono_mb_patch_branch (mb, pos2);
6614 mono_mb_emit_ldarg (mb, argnum);
6615 mono_mb_emit_byte (mb, CEE_LDIND_I);
6618 mono_mb_emit_stloc (mb, 0);
6620 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6621 mono_mb_emit_stloc (mb, conv_arg);
6623 mono_mb_emit_ldloc (mb, 0);
6624 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6626 /* Create and set dst */
6627 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6628 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6629 mono_mb_emit_stloc (mb, conv_arg);
6630 mono_mb_emit_ldloc (mb, conv_arg);
6631 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6632 mono_mb_emit_stloc (mb, 1);
6634 /* emit valuetype conversion code */
6635 emit_struct_conv (mb, klass, TRUE);
6637 mono_mb_patch_branch (mb, pos);
6640 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6642 /* Check for null */
6643 mono_mb_emit_ldloc (mb, conv_arg);
6644 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6645 mono_mb_emit_ldarg (mb, argnum);
6646 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6647 mono_mb_emit_byte (mb, CEE_STIND_REF);
6648 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6650 mono_mb_patch_branch (mb, pos);
6653 mono_mb_emit_ldloc (mb, conv_arg);
6654 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6655 mono_mb_emit_stloc (mb, 0);
6657 /* Allocate and set dest */
6658 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6659 mono_mb_emit_byte (mb, CEE_CONV_I);
6660 mono_mb_emit_icall (mb, mono_marshal_alloc);
6661 mono_mb_emit_stloc (mb, 1);
6663 /* Update argument pointer */
6664 mono_mb_emit_ldarg (mb, argnum);
6665 mono_mb_emit_ldloc (mb, 1);
6666 mono_mb_emit_byte (mb, CEE_STIND_I);
6668 /* emit valuetype conversion code */
6669 emit_struct_conv (mb, klass, FALSE);
6671 mono_mb_patch_branch (mb, pos2);
6673 /* byval [Out] marshalling */
6675 /* FIXME: Handle null */
6678 mono_mb_emit_ldloc (mb, conv_arg);
6679 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6680 mono_mb_emit_stloc (mb, 0);
6683 mono_mb_emit_ldarg (mb, argnum);
6684 mono_mb_emit_stloc (mb, 1);
6686 /* emit valuetype conversion code */
6687 emit_struct_conv (mb, klass, FALSE);
6691 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6692 if (klass->delegate) {
6693 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6694 mono_mb_emit_stloc (mb, 3);
6698 /* The class can not have an automatic layout */
6699 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6700 mono_mb_emit_auto_layout_exception (mb, klass);
6704 mono_mb_emit_stloc (mb, 0);
6705 /* Check for null */
6706 mono_mb_emit_ldloc (mb, 0);
6707 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6708 mono_mb_emit_byte (mb, CEE_LDNULL);
6709 mono_mb_emit_stloc (mb, 3);
6710 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6712 mono_mb_patch_branch (mb, pos);
6715 mono_mb_emit_ldloc (mb, 0);
6716 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6717 mono_mb_emit_stloc (mb, 0);
6719 /* Allocate and set dest */
6720 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6721 mono_mb_emit_byte (mb, CEE_CONV_I);
6722 mono_mb_emit_icall (mb, mono_marshal_alloc);
6723 mono_mb_emit_byte (mb, CEE_DUP);
6724 mono_mb_emit_stloc (mb, 1);
6725 mono_mb_emit_stloc (mb, 3);
6727 emit_struct_conv (mb, klass, FALSE);
6729 mono_mb_patch_branch (mb, pos2);
6733 g_assert_not_reached ();
6740 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6741 MonoMarshalSpec *spec,
6742 int conv_arg, MonoType **conv_arg_type,
6743 MarshalAction action)
6745 MonoMethodBuilder *mb = m->mb;
6746 static MonoMethod *get_object_for_native_variant = NULL;
6747 static MonoMethod *get_native_variant_for_object = NULL;
6749 mono_init_com_types ();
6751 if (!get_object_for_native_variant)
6752 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6753 g_assert (get_object_for_native_variant);
6755 if (!get_native_variant_for_object)
6756 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6757 g_assert (get_native_variant_for_object);
6760 case MARSHAL_ACTION_CONV_IN: {
6761 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6764 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6766 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6768 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6771 mono_mb_emit_ldarg (mb, argnum);
6773 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6774 mono_mb_emit_ldloc_addr (mb, conv_arg);
6775 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6779 case MARSHAL_ACTION_CONV_OUT: {
6780 static MonoMethod *variant_clear = NULL;
6783 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6784 g_assert (variant_clear);
6787 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6788 mono_mb_emit_ldarg (mb, argnum);
6789 mono_mb_emit_ldloc_addr (mb, conv_arg);
6790 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6791 mono_mb_emit_byte (mb, CEE_STIND_REF);
6794 mono_mb_emit_ldloc_addr (mb, conv_arg);
6795 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6799 case MARSHAL_ACTION_PUSH:
6801 mono_mb_emit_ldloc_addr (mb, conv_arg);
6803 mono_mb_emit_ldloc (mb, conv_arg);
6806 case MARSHAL_ACTION_CONV_RESULT: {
6807 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6808 mono_mb_emit_exception_marshal_directive (mb, msg);
6812 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6813 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6816 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6818 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6820 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6824 mono_mb_emit_ldarg (mb, argnum);
6826 mono_mb_emit_ldarg_addr (mb, argnum);
6827 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6828 mono_mb_emit_stloc (mb, conv_arg);
6832 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6833 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6834 mono_mb_emit_ldloc (mb, conv_arg);
6835 mono_mb_emit_ldarg (mb, argnum);
6836 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6841 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6842 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6843 mono_mb_emit_exception_marshal_directive (mb, msg);
6848 g_assert_not_reached ();
6855 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6856 MonoMarshalSpec *spec,
6857 int conv_arg, MonoType **conv_arg_type,
6858 MarshalAction action)
6860 MonoMethodBuilder *mb = m->mb;
6861 MonoClass *klass = mono_class_from_mono_type (t);
6862 gboolean need_convert, need_free;
6863 MonoMarshalNative encoding;
6865 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6868 case MARSHAL_ACTION_CONV_IN:
6869 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6870 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6872 if (klass->element_class->blittable) {
6873 mono_mb_emit_ldarg (mb, argnum);
6875 mono_mb_emit_byte (mb, CEE_LDIND_I);
6876 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6877 mono_mb_emit_stloc (mb, conv_arg);
6880 guint32 label1, label2, label3;
6881 int index_var, src_var, dest_ptr, esize;
6882 MonoMarshalConv conv;
6883 gboolean is_string = FALSE;
6885 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6887 eklass = klass->element_class;
6889 if (eklass == mono_defaults.string_class) {
6891 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6893 else if (eklass == mono_defaults.stringbuilder_class) {
6895 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6900 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6901 mono_mb_emit_ldarg (mb, argnum);
6903 mono_mb_emit_byte (mb, CEE_LDIND_I);
6904 mono_mb_emit_stloc (mb, src_var);
6907 mono_mb_emit_ldloc (mb, src_var);
6908 mono_mb_emit_stloc (mb, conv_arg);
6909 mono_mb_emit_ldloc (mb, src_var);
6910 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6914 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6915 MonoException *exc = mono_get_exception_not_implemented (msg);
6916 g_warning ("%s", msg);
6918 mono_raise_exception (exc);
6923 esize = sizeof (gpointer);
6925 esize = mono_class_native_size (eklass, NULL);
6927 /* allocate space for the native struct and store the address */
6928 mono_mb_emit_icon (mb, esize);
6929 mono_mb_emit_ldloc (mb, src_var);
6930 mono_mb_emit_byte (mb, CEE_LDLEN);
6932 if (eklass == mono_defaults.string_class) {
6933 /* Make the array bigger for the terminating null */
6934 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6935 mono_mb_emit_byte (mb, CEE_ADD);
6937 mono_mb_emit_byte (mb, CEE_MUL);
6938 mono_mb_emit_byte (mb, CEE_PREFIX1);
6939 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6940 mono_mb_emit_stloc (mb, conv_arg);
6942 mono_mb_emit_ldloc (mb, conv_arg);
6943 mono_mb_emit_stloc (mb, dest_ptr);
6945 /* Emit marshalling loop */
6946 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6947 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6948 mono_mb_emit_stloc (mb, index_var);
6949 label2 = mono_mb_get_label (mb);
6950 mono_mb_emit_ldloc (mb, index_var);
6951 mono_mb_emit_ldloc (mb, src_var);
6952 mono_mb_emit_byte (mb, CEE_LDLEN);
6953 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6955 /* Emit marshalling code */
6958 mono_mb_emit_ldloc (mb, dest_ptr);
6959 mono_mb_emit_ldloc (mb, src_var);
6960 mono_mb_emit_ldloc (mb, index_var);
6961 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6962 mono_mb_emit_icall (mb, conv_to_icall (conv));
6963 mono_mb_emit_byte (mb, CEE_STIND_I);
6965 /* set the src_ptr */
6966 mono_mb_emit_ldloc (mb, src_var);
6967 mono_mb_emit_ldloc (mb, index_var);
6968 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6969 mono_mb_emit_stloc (mb, 0);
6972 mono_mb_emit_ldloc (mb, dest_ptr);
6973 mono_mb_emit_stloc (mb, 1);
6975 /* emit valuetype conversion code */
6976 emit_struct_conv (mb, eklass, FALSE);
6979 mono_mb_emit_add_to_local (mb, index_var, 1);
6980 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6982 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6984 mono_mb_patch_branch (mb, label3);
6986 if (eklass == mono_defaults.string_class) {
6987 /* Null terminate */
6988 mono_mb_emit_ldloc (mb, dest_ptr);
6989 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6990 mono_mb_emit_byte (mb, CEE_STIND_REF);
6993 mono_mb_patch_branch (mb, label1);
6998 case MARSHAL_ACTION_CONV_OUT:
6999 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7000 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);
7001 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7004 if (need_convert || need_free) {
7005 /* FIXME: Optimize blittable case */
7007 guint32 label1, label2, label3;
7008 int index_var, src_ptr, loc, esize;
7010 eklass = klass->element_class;
7011 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7012 esize = sizeof (gpointer);
7014 esize = mono_class_native_size (eklass, NULL);
7015 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7016 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7019 mono_mb_emit_ldarg (mb, argnum);
7021 mono_mb_emit_byte (mb, CEE_LDIND_I);
7022 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7024 mono_mb_emit_ldloc (mb, conv_arg);
7025 mono_mb_emit_stloc (mb, src_ptr);
7027 /* Emit marshalling loop */
7028 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7029 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7030 mono_mb_emit_stloc (mb, index_var);
7031 label2 = mono_mb_get_label (mb);
7032 mono_mb_emit_ldloc (mb, index_var);
7033 mono_mb_emit_ldarg (mb, argnum);
7035 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7036 mono_mb_emit_byte (mb, CEE_LDLEN);
7037 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7039 /* Emit marshalling code */
7041 if (eklass == mono_defaults.stringbuilder_class) {
7042 gboolean need_free2;
7043 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7045 g_assert (conv != -1);
7048 mono_mb_emit_ldarg (mb, argnum);
7050 mono_mb_emit_byte (mb, CEE_LDIND_I);
7051 mono_mb_emit_ldloc (mb, index_var);
7052 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7055 mono_mb_emit_ldloc (mb, src_ptr);
7056 mono_mb_emit_byte (mb, CEE_LDIND_I);
7058 mono_mb_emit_icall (mb, conv_to_icall (conv));
7062 mono_mb_emit_ldloc (mb, src_ptr);
7063 mono_mb_emit_byte (mb, CEE_LDIND_I);
7065 mono_mb_emit_icall (mb, mono_marshal_free);
7068 else if (eklass == mono_defaults.string_class) {
7071 mono_mb_emit_ldloc (mb, src_ptr);
7072 mono_mb_emit_byte (mb, CEE_LDIND_I);
7074 mono_mb_emit_icall (mb, mono_marshal_free);
7079 /* set the src_ptr */
7080 mono_mb_emit_ldloc (mb, src_ptr);
7081 mono_mb_emit_stloc (mb, 0);
7084 mono_mb_emit_ldarg (mb, argnum);
7086 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7087 mono_mb_emit_ldloc (mb, index_var);
7088 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7089 mono_mb_emit_stloc (mb, 1);
7091 /* emit valuetype conversion code */
7092 emit_struct_conv (mb, eklass, TRUE);
7096 mono_mb_emit_ldloc (mb, src_ptr);
7097 mono_mb_emit_stloc (mb, loc);
7098 mono_mb_emit_ldloc (mb, loc);
7100 emit_struct_free (mb, eklass, loc);
7104 mono_mb_emit_add_to_local (mb, index_var, 1);
7105 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7107 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7109 mono_mb_patch_branch (mb, label1);
7110 mono_mb_patch_branch (mb, label3);
7113 if (klass->element_class->blittable) {
7114 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7116 mono_mb_emit_ldarg (mb, argnum);
7117 mono_mb_emit_ldloc (mb, conv_arg);
7118 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7123 case MARSHAL_ACTION_PUSH:
7125 mono_mb_emit_ldloc_addr (mb, conv_arg);
7127 mono_mb_emit_ldloc (mb, conv_arg);
7130 case MARSHAL_ACTION_CONV_RESULT:
7131 /* fixme: we need conversions here */
7132 mono_mb_emit_stloc (mb, 3);
7135 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7137 guint32 label1, label2, label3;
7138 int index_var, src_ptr, loc, esize, param_num, num_elem;
7139 MonoMarshalConv conv;
7140 gboolean is_string = FALSE;
7142 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7143 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7146 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7147 mono_mb_emit_exception_marshal_directive (mb, msg);
7151 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7152 mono_mb_emit_exception_marshal_directive (mb, msg);
7155 if (spec->native != MONO_NATIVE_LPARRAY) {
7156 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7157 mono_mb_emit_exception_marshal_directive (mb, msg);
7161 /* FIXME: t is from the method which is wrapped, not the delegate type */
7162 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7164 param_num = spec->data.array_data.param_num;
7165 num_elem = spec->data.array_data.num_elem;
7166 if (spec->data.array_data.elem_mult == 0)
7167 /* param_num is not specified */
7170 if (param_num == -1) {
7171 if (num_elem <= 0) {
7172 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7173 mono_mb_emit_exception_marshal_directive (mb, msg);
7178 /* FIXME: Optimize blittable case */
7180 eklass = klass->element_class;
7181 if (eklass == mono_defaults.string_class) {
7183 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7185 else if (eklass == mono_defaults.stringbuilder_class) {
7187 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7192 mono_marshal_load_type_info (eklass);
7195 esize = sizeof (gpointer);
7197 esize = mono_class_native_size (eklass, NULL);
7198 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7199 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7201 mono_mb_emit_byte (mb, CEE_LDNULL);
7202 mono_mb_emit_stloc (mb, conv_arg);
7204 /* Check param index */
7205 if (param_num != -1) {
7206 if (param_num >= m->sig->param_count) {
7207 char *msg = g_strdup ("Array size control parameter index is out of range.");
7208 mono_mb_emit_exception_marshal_directive (mb, msg);
7211 switch (m->sig->params [param_num]->type) {
7224 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7225 mono_mb_emit_exception_marshal_directive (mb, msg);
7232 mono_mb_emit_ldarg (mb, argnum);
7233 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7235 mono_mb_emit_ldarg (mb, argnum);
7236 mono_mb_emit_stloc (mb, src_ptr);
7238 /* Create managed array */
7240 * The LPArray marshalling spec says that sometimes param_num starts
7241 * from 1, sometimes it starts from 0. But MS seems to allways start
7245 if (param_num == -1) {
7246 mono_mb_emit_icon (mb, num_elem);
7248 mono_mb_emit_ldarg (mb, param_num);
7250 mono_mb_emit_icon (mb, num_elem);
7251 mono_mb_emit_byte (mb, CEE_ADD);
7253 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7256 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7257 mono_mb_emit_stloc (mb, conv_arg);
7259 if (eklass->blittable) {
7260 mono_mb_emit_ldloc (mb, conv_arg);
7261 mono_mb_emit_byte (mb, CEE_CONV_I);
7262 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7263 mono_mb_emit_byte (mb, CEE_ADD);
7264 mono_mb_emit_ldarg (mb, argnum);
7265 mono_mb_emit_ldloc (mb, conv_arg);
7266 mono_mb_emit_byte (mb, CEE_LDLEN);
7267 mono_mb_emit_icon (mb, esize);
7268 mono_mb_emit_byte (mb, CEE_MUL);
7269 mono_mb_emit_byte (mb, CEE_PREFIX1);
7270 mono_mb_emit_byte (mb, CEE_CPBLK);
7274 /* Emit marshalling loop */
7275 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7276 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7277 mono_mb_emit_stloc (mb, index_var);
7278 label2 = mono_mb_get_label (mb);
7279 mono_mb_emit_ldloc (mb, index_var);
7280 mono_mb_emit_ldloc (mb, conv_arg);
7281 mono_mb_emit_byte (mb, CEE_LDLEN);
7282 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7284 /* Emit marshalling code */
7286 g_assert (conv != -1);
7288 mono_mb_emit_ldloc (mb, conv_arg);
7289 mono_mb_emit_ldloc (mb, index_var);
7291 mono_mb_emit_ldloc (mb, src_ptr);
7292 mono_mb_emit_byte (mb, CEE_LDIND_I);
7294 mono_mb_emit_icall (mb, conv_to_icall (conv));
7295 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7298 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7299 mono_mb_emit_exception_marshal_directive (mb, msg);
7303 mono_mb_emit_add_to_local (mb, index_var, 1);
7304 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7306 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7308 mono_mb_patch_branch (mb, label1);
7309 mono_mb_patch_branch (mb, label3);
7313 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7315 guint32 label1, label2, label3;
7316 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7317 MonoMarshalConv conv;
7318 gboolean is_string = FALSE;
7321 /* Already handled in CONV_IN */
7324 /* These are already checked in CONV_IN */
7325 g_assert (!t->byref);
7326 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7327 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7329 param_num = spec->data.array_data.param_num;
7330 num_elem = spec->data.array_data.num_elem;
7332 if (spec->data.array_data.elem_mult == 0)
7333 /* param_num is not specified */
7336 if (param_num == -1) {
7337 if (num_elem <= 0) {
7338 g_assert_not_reached ();
7342 /* FIXME: Optimize blittable case */
7344 eklass = klass->element_class;
7345 if (eklass == mono_defaults.string_class) {
7347 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7349 else if (eklass == mono_defaults.stringbuilder_class) {
7351 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7356 mono_marshal_load_type_info (eklass);
7359 esize = sizeof (gpointer);
7361 esize = mono_class_native_size (eklass, NULL);
7363 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7364 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7367 mono_mb_emit_ldloc (mb, conv_arg);
7368 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7370 mono_mb_emit_ldarg (mb, argnum);
7371 mono_mb_emit_stloc (mb, dest_ptr);
7373 if (eklass->blittable) {
7375 mono_mb_emit_ldarg (mb, argnum);
7377 mono_mb_emit_ldloc (mb, conv_arg);
7378 mono_mb_emit_byte (mb, CEE_CONV_I);
7379 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7380 mono_mb_emit_byte (mb, CEE_ADD);
7382 mono_mb_emit_ldloc (mb, conv_arg);
7383 mono_mb_emit_byte (mb, CEE_LDLEN);
7384 mono_mb_emit_icon (mb, esize);
7385 mono_mb_emit_byte (mb, CEE_MUL);
7386 mono_mb_emit_byte (mb, CEE_PREFIX1);
7387 mono_mb_emit_byte (mb, CEE_CPBLK);
7391 /* Emit marshalling loop */
7392 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7393 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7394 mono_mb_emit_stloc (mb, index_var);
7395 label2 = mono_mb_get_label (mb);
7396 mono_mb_emit_ldloc (mb, index_var);
7397 mono_mb_emit_ldloc (mb, conv_arg);
7398 mono_mb_emit_byte (mb, CEE_LDLEN);
7399 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7401 /* Emit marshalling code */
7403 g_assert (conv != -1);
7406 mono_mb_emit_ldloc (mb, dest_ptr);
7409 mono_mb_emit_ldloc (mb, conv_arg);
7410 mono_mb_emit_ldloc (mb, index_var);
7412 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7414 mono_mb_emit_icall (mb, conv_to_icall (conv));
7415 mono_mb_emit_byte (mb, CEE_STIND_I);
7418 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7419 mono_mb_emit_exception_marshal_directive (mb, msg);
7423 mono_mb_emit_add_to_local (mb, index_var, 1);
7424 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7426 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7428 mono_mb_patch_branch (mb, label1);
7429 mono_mb_patch_branch (mb, label3);
7433 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7435 guint32 label1, label2, label3;
7436 int index_var, src, dest, esize;
7437 MonoMarshalConv conv = -1;
7438 gboolean is_string = FALSE;
7440 g_assert (!t->byref);
7442 eklass = klass->element_class;
7444 mono_marshal_load_type_info (eklass);
7446 if (eklass == mono_defaults.string_class) {
7448 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7451 g_assert_not_reached ();
7455 esize = sizeof (gpointer);
7457 esize = mono_class_native_size (eklass, NULL);
7459 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7460 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7462 mono_mb_emit_stloc (mb, src);
7463 mono_mb_emit_ldloc (mb, src);
7464 mono_mb_emit_stloc (mb, 3);
7466 /* Check for null */
7467 mono_mb_emit_ldloc (mb, src);
7468 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7470 /* Allocate native array */
7471 mono_mb_emit_icon (mb, esize);
7472 mono_mb_emit_ldloc (mb, src);
7473 mono_mb_emit_byte (mb, CEE_LDLEN);
7475 if (eklass == mono_defaults.string_class) {
7476 /* Make the array bigger for the terminating null */
7477 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7478 mono_mb_emit_byte (mb, CEE_ADD);
7480 mono_mb_emit_byte (mb, CEE_MUL);
7481 mono_mb_emit_icall (mb, mono_marshal_alloc);
7482 mono_mb_emit_stloc (mb, dest);
7483 mono_mb_emit_ldloc (mb, dest);
7484 mono_mb_emit_stloc (mb, 3);
7486 /* Emit marshalling loop */
7487 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7488 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7489 mono_mb_emit_stloc (mb, index_var);
7490 label2 = mono_mb_get_label (mb);
7491 mono_mb_emit_ldloc (mb, index_var);
7492 mono_mb_emit_ldloc (mb, src);
7493 mono_mb_emit_byte (mb, CEE_LDLEN);
7494 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7496 /* Emit marshalling code */
7498 g_assert (conv != -1);
7501 mono_mb_emit_ldloc (mb, dest);
7504 mono_mb_emit_ldloc (mb, src);
7505 mono_mb_emit_ldloc (mb, index_var);
7507 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7509 mono_mb_emit_icall (mb, conv_to_icall (conv));
7510 mono_mb_emit_byte (mb, CEE_STIND_I);
7513 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7514 mono_mb_emit_exception_marshal_directive (mb, msg);
7518 mono_mb_emit_add_to_local (mb, index_var, 1);
7519 mono_mb_emit_add_to_local (mb, dest, esize);
7521 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7523 mono_mb_patch_branch (mb, label3);
7524 mono_mb_patch_branch (mb, label1);
7528 g_assert_not_reached ();
7535 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7536 MonoMarshalSpec *spec,
7537 int conv_arg, MonoType **conv_arg_type,
7538 MarshalAction action)
7540 MonoMethodBuilder *mb = m->mb;
7543 case MARSHAL_ACTION_CONV_IN: {
7544 MonoType *local_type;
7546 guint8 ldc_op = CEE_LDC_I4_1;
7549 local_type = &mono_defaults.int32_class->byval_arg;
7551 switch (spec->native) {
7552 case MONO_NATIVE_I1:
7553 case MONO_NATIVE_U1:
7554 local_type = &mono_defaults.byte_class->byval_arg;
7556 case MONO_NATIVE_VARIANTBOOL:
7557 local_type = &mono_defaults.int16_class->byval_arg;
7558 ldc_op = CEE_LDC_I4_M1;
7560 case MONO_NATIVE_BOOLEAN:
7561 local_type = &mono_defaults.int32_class->byval_arg;
7564 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7565 local_type = &mono_defaults.int32_class->byval_arg;
7570 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7572 *conv_arg_type = local_type;
7573 conv_arg = mono_mb_add_local (mb, local_type);
7575 mono_mb_emit_ldarg (mb, argnum);
7577 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7578 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7579 mono_mb_emit_byte (mb, ldc_op);
7580 mono_mb_emit_stloc (mb, conv_arg);
7581 mono_mb_patch_branch (mb, label_false);
7586 case MARSHAL_ACTION_CONV_OUT:
7588 int label_false, label_end;
7592 mono_mb_emit_ldarg (mb, argnum);
7593 mono_mb_emit_ldloc (mb, conv_arg);
7595 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7596 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7598 label_end = mono_mb_emit_branch (mb, CEE_BR);
7599 mono_mb_patch_branch (mb, label_false);
7600 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7601 mono_mb_patch_branch (mb, label_end);
7603 mono_mb_emit_byte (mb, CEE_STIND_I1);
7607 case MARSHAL_ACTION_PUSH:
7609 mono_mb_emit_ldloc_addr (mb, conv_arg);
7611 mono_mb_emit_ldloc (mb, conv_arg);
7613 mono_mb_emit_ldarg (mb, argnum);
7616 case MARSHAL_ACTION_CONV_RESULT:
7617 /* maybe we need to make sure that it fits within 8 bits */
7618 mono_mb_emit_stloc (mb, 3);
7621 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7622 MonoClass* conv_arg_class = mono_defaults.int32_class;
7623 guint8 ldop = CEE_LDIND_I4;
7624 int label_null, label_false;
7626 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7629 switch (spec->native) {
7630 case MONO_NATIVE_I1:
7631 case MONO_NATIVE_U1:
7632 conv_arg_class = mono_defaults.byte_class;
7633 ldop = CEE_LDIND_I1;
7635 case MONO_NATIVE_VARIANTBOOL:
7636 conv_arg_class = mono_defaults.int16_class;
7637 ldop = CEE_LDIND_I2;
7639 case MONO_NATIVE_BOOLEAN:
7642 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7647 *conv_arg_type = &conv_arg_class->this_arg;
7649 *conv_arg_type = &conv_arg_class->byval_arg;
7652 mono_mb_emit_ldarg (mb, argnum);
7656 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7657 mono_mb_emit_ldarg (mb, argnum);
7658 mono_mb_emit_byte (mb, ldop);
7662 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7663 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7664 mono_mb_emit_stloc (mb, conv_arg);
7665 mono_mb_patch_branch (mb, label_false);
7668 mono_mb_patch_branch (mb, label_null);
7672 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7673 guint8 stop = CEE_STIND_I4;
7674 guint8 ldc_op = CEE_LDC_I4_1;
7675 int label_null,label_false, label_end;;
7680 switch (spec->native) {
7681 case MONO_NATIVE_I1:
7682 case MONO_NATIVE_U1:
7683 stop = CEE_STIND_I1;
7685 case MONO_NATIVE_VARIANTBOOL:
7686 stop = CEE_STIND_I2;
7687 ldc_op = CEE_LDC_I4_M1;
7695 mono_mb_emit_ldarg (mb, argnum);
7696 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7698 mono_mb_emit_ldarg (mb, argnum);
7699 mono_mb_emit_ldloc (mb, conv_arg);
7701 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7702 mono_mb_emit_byte (mb, ldc_op);
7703 label_end = mono_mb_emit_branch (mb, CEE_BR);
7705 mono_mb_patch_branch (mb, label_false);
7706 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7707 mono_mb_patch_branch (mb, label_end);
7709 mono_mb_emit_byte (mb, stop);
7710 mono_mb_patch_branch (mb, label_null);
7715 g_assert_not_reached ();
7722 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7723 MonoMarshalSpec *spec, int conv_arg,
7724 MonoType **conv_arg_type, MarshalAction action)
7726 MonoMethodBuilder *mb = m->mb;
7729 case MARSHAL_ACTION_CONV_IN:
7730 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7731 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7732 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7736 case MARSHAL_ACTION_PUSH:
7737 mono_mb_emit_ldarg (mb, argnum);
7740 case MARSHAL_ACTION_CONV_RESULT:
7741 /* no conversions necessary */
7742 mono_mb_emit_stloc (mb, 3);
7753 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7754 MonoMarshalSpec *spec, int conv_arg,
7755 MonoType **conv_arg_type, MarshalAction action)
7757 MonoMethodBuilder *mb = m->mb;
7760 case MARSHAL_ACTION_PUSH:
7761 /* fixme: dont know how to marshal that. We cant simply
7762 * convert it to a one byte UTF8 character, because an
7763 * unicode character may need more that one byte in UTF8 */
7764 mono_mb_emit_ldarg (mb, argnum);
7767 case MARSHAL_ACTION_CONV_RESULT:
7768 /* fixme: we need conversions here */
7769 mono_mb_emit_stloc (mb, 3);
7780 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7781 MonoMarshalSpec *spec, int conv_arg,
7782 MonoType **conv_arg_type, MarshalAction action)
7784 MonoMethodBuilder *mb = m->mb;
7787 case MARSHAL_ACTION_PUSH:
7788 mono_mb_emit_ldarg (mb, argnum);
7791 case MARSHAL_ACTION_CONV_RESULT:
7792 /* no conversions necessary */
7793 mono_mb_emit_stloc (mb, 3);
7804 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7805 MonoMarshalSpec *spec, int conv_arg,
7806 MonoType **conv_arg_type, MarshalAction action)
7808 /* Ensure that we have marshalling info for this param */
7809 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7811 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7812 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7814 if (spec && spec->native == MONO_NATIVE_ASANY)
7815 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7818 case MONO_TYPE_VALUETYPE:
7819 if (t->data.klass == mono_defaults.handleref_class)
7820 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7822 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7823 case MONO_TYPE_STRING:
7824 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7825 case MONO_TYPE_CLASS:
7826 case MONO_TYPE_OBJECT:
7827 if (spec && spec->native == MONO_NATIVE_STRUCT)
7828 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7831 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7832 spec->native == MONO_NATIVE_IDISPATCH ||
7833 spec->native == MONO_NATIVE_INTERFACE))
7834 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7835 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7836 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7837 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7838 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7841 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7842 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7843 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7845 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7846 case MONO_TYPE_ARRAY:
7847 case MONO_TYPE_SZARRAY:
7848 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7849 case MONO_TYPE_BOOLEAN:
7850 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7852 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7853 case MONO_TYPE_CHAR:
7854 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7867 case MONO_TYPE_FNPTR:
7868 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7869 case MONO_TYPE_GENERICINST:
7870 if (mono_type_generic_inst_is_valuetype (t))
7871 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7873 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7880 * mono_marshal_emit_native_wrapper:
7881 * @image: the image to use for looking up custom marshallers
7882 * @sig: The signature of the native function
7883 * @piinfo: Marshalling information
7884 * @mspecs: Marshalling information
7885 * @aot: whenever the created method will be compiled by the AOT compiler
7886 * @method: if non-NULL, the pinvoke method to call
7887 * @check_exceptions: Whenever to check for pending exceptions after the native call
7889 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7892 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7894 EmitMarshalContext m;
7895 MonoMethodSignature *csig;
7897 int i, argnum, *tmp_locals;
7899 static MonoMethodSignature *get_last_error_sig = NULL;
7904 /* we copy the signature, so that we can set pinvoke to 0 */
7905 csig = signature_dup (mb->method->klass->image, sig);
7910 /* we allocate local for use with emit_struct_conv() */
7911 /* allocate local 0 (pointer) src_ptr */
7912 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7913 /* allocate local 1 (pointer) dst_ptr */
7914 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7915 /* allocate local 2 (boolean) delete_old */
7916 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7918 /* delete_old = FALSE */
7919 mono_mb_emit_icon (mb, 0);
7920 mono_mb_emit_stloc (mb, 2);
7922 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7923 /* allocate local 3 to store the return value */
7924 mono_mb_add_local (mb, sig->ret);
7927 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7928 /* Return type custom marshaling */
7930 * Since we can't determine the return type of the unmanaged function,
7931 * we assume it returns a pointer, and pass that pointer to
7932 * MarshalNativeToManaged.
7934 csig->ret = &mono_defaults.int_class->byval_arg;
7937 /* we first do all conversions */
7938 tmp_locals = alloca (sizeof (int) * sig->param_count);
7939 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7941 for (i = 0; i < sig->param_count; i ++) {
7942 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7945 /* push all arguments */
7948 mono_mb_emit_byte (mb, CEE_LDARG_0);
7950 for (i = 0; i < sig->param_count; i++) {
7951 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7954 /* call the native method */
7955 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7957 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7959 g_assert_not_reached ();
7964 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7965 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7966 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7967 mono_mb_emit_calli (mb, csig);
7969 mono_mb_emit_native_call (mb, csig, func);
7973 /* Set LastError if needed */
7974 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7975 if (!get_last_error_sig) {
7976 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7977 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7978 get_last_error_sig->pinvoke = 1;
7983 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7984 * clobber its value.
7986 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7987 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7989 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7993 /* convert the result */
7994 if (!sig->ret->byref) {
7995 MonoMarshalSpec *spec = mspecs [0];
7996 type = sig->ret->type;
7998 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7999 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8004 case MONO_TYPE_VOID:
8006 case MONO_TYPE_VALUETYPE:
8007 klass = sig->ret->data.klass;
8008 if (klass->enumtype) {
8009 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8012 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8026 case MONO_TYPE_FNPTR:
8027 case MONO_TYPE_STRING:
8028 case MONO_TYPE_CLASS:
8029 case MONO_TYPE_OBJECT:
8030 case MONO_TYPE_BOOLEAN:
8031 case MONO_TYPE_ARRAY:
8032 case MONO_TYPE_SZARRAY:
8033 case MONO_TYPE_CHAR:
8035 case MONO_TYPE_GENERICINST:
8036 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8038 case MONO_TYPE_TYPEDBYREF:
8040 g_warning ("return type 0x%02x unknown", sig->ret->type);
8041 g_assert_not_reached ();
8045 mono_mb_emit_stloc (mb, 3);
8049 * Need to call this after converting the result since MONO_VTADDR needs
8050 * to be adjacent to the call instruction.
8052 if (check_exceptions)
8053 emit_thread_interrupt_checkpoint (mb);
8055 /* we need to convert byref arguments back and free string arrays */
8056 for (i = 0; i < sig->param_count; i++) {
8057 MonoType *t = sig->params [i];
8058 MonoMarshalSpec *spec = mspecs [i + 1];
8060 argnum = i + sig->hasthis;
8062 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8063 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8068 case MONO_TYPE_STRING:
8069 case MONO_TYPE_VALUETYPE:
8070 case MONO_TYPE_CLASS:
8071 case MONO_TYPE_OBJECT:
8072 case MONO_TYPE_SZARRAY:
8073 case MONO_TYPE_BOOLEAN:
8074 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8079 if (!MONO_TYPE_IS_VOID(sig->ret))
8080 mono_mb_emit_ldloc (mb, 3);
8082 mono_mb_emit_byte (mb, CEE_RET);
8085 G_GNUC_UNUSED static void
8086 code_for (MonoMethod *method) {
8087 MonoMethodHeader *header = mono_method_get_header (method);
8088 printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (method, TRUE), mono_disasm_code (0, method, header->code, header->code + header->code_size));
8092 * mono_marshal_get_native_wrapper:
8093 * @method: The MonoMethod to wrap.
8094 * @check_exceptions: Whenever to check for pending exceptions
8096 * generates IL code for the pinvoke wrapper (the generated method
8097 * calls the unmanaged code in piinfo->addr)
8100 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8102 MonoMethodSignature *sig, *csig;
8103 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8104 MonoMethodBuilder *mb;
8105 MonoMarshalSpec **mspecs;
8108 gboolean pinvoke = FALSE;
8111 const char *exc_class = "MissingMethodException";
8112 const char *exc_arg = NULL;
8114 g_assert (method != NULL);
8115 g_assert (mono_method_signature (method)->pinvoke);
8118 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8120 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8121 if ((res = mono_marshal_find_in_cache (cache, method)))
8124 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8126 return mono_cominterop_get_native_wrapper (method);
8128 g_assert_not_reached ();
8132 sig = mono_method_signature (method);
8134 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8135 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8138 if (!piinfo->addr) {
8140 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8141 exc_arg = "Method contains unsupported native code";
8143 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8145 piinfo->addr = mono_lookup_internal_call (method);
8148 /* hack - redirect certain string constructors to CreateString */
8149 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8150 g_assert (!pinvoke);
8151 g_assert (method->string_ctor);
8152 g_assert (sig->hasthis);
8154 /* CreateString returns a value */
8155 csig = signature_dup (method->klass->image, sig);
8156 csig->ret = &mono_defaults.string_class->byval_arg;
8160 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8161 if (!strcmp ("CreateString", res->name) &&
8162 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8164 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8165 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8167 /* create a wrapper to preserve .ctor in stack trace */
8168 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8170 mono_mb_emit_byte (mb, CEE_LDARG_0);
8171 for (i = 1; i <= csig->param_count; i++)
8172 mono_mb_emit_ldarg (mb, i);
8173 mono_mb_emit_managed_call (mb, res, NULL);
8174 mono_mb_emit_byte (mb, CEE_RET);
8176 /* use native_wrapper_cache because internal calls are looked up there */
8177 res = mono_mb_create_and_cache (cache, method,
8178 mb, csig, csig->param_count + 1);
8186 /* exception will be thrown */
8187 piinfo->addr = NULL;
8188 g_warning ("cannot find CreateString for .ctor");
8191 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8193 mb->method->save_lmf = 1;
8196 * In AOT mode and embedding scenarios, it is possible that the icall is not
8197 * registered in the runtime doing the AOT compilation.
8199 if (!piinfo->addr && !aot) {
8200 mono_mb_emit_exception (mb, exc_class, exc_arg);
8201 csig = signature_dup (method->klass->image, sig);
8203 res = mono_mb_create_and_cache (cache, method,
8204 mb, csig, csig->param_count + 16);
8209 /* internal calls: we simply push all arguments and call the method (no conversions) */
8210 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8212 csig = signature_dup_add_this (sig, method->klass);
8214 csig = signature_dup (method->klass->image, sig);
8216 /* hack - string constructors returns a value */
8217 if (method->string_ctor)
8218 csig->ret = &mono_defaults.string_class->byval_arg;
8224 * Add a null check since public icalls can be called with 'call' which
8225 * does no such check.
8227 mono_mb_emit_byte (mb, CEE_LDARG_0);
8228 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8229 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8230 mono_mb_patch_branch (mb, pos);
8232 mono_mb_emit_byte (mb, CEE_LDARG_0);
8235 for (i = 0; i < sig->param_count; i++)
8236 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8239 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8240 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8241 mono_mb_emit_calli (mb, csig);
8243 g_assert (piinfo->addr);
8244 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8246 if (check_exceptions)
8247 emit_thread_interrupt_checkpoint (mb);
8248 mono_mb_emit_byte (mb, CEE_RET);
8250 csig = signature_dup (method->klass->image, csig);
8252 res = mono_mb_create_and_cache (cache, method,
8253 mb, csig, csig->param_count + 16);
8260 g_assert (piinfo->addr);
8262 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8263 mono_method_get_marshal_info (method, mspecs);
8265 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8267 csig = signature_dup (method->klass->image, sig);
8269 res = mono_mb_create_and_cache (cache, method,
8270 mb, csig, csig->param_count + 16);
8273 for (i = sig->param_count; i >= 0; i--)
8275 mono_metadata_free_marshal_spec (mspecs [i]);
8278 /* code_for (res); */
8284 * mono_marshal_get_native_func_wrapper:
8285 * @image: The image to use for memory allocation and for looking up custom marshallers.
8286 * @sig: The signature of the function
8287 * @func: The native function to wrap
8289 * Returns a wrapper method around native functions, similar to the pinvoke
8293 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8294 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8296 MonoMethodSignature *csig;
8298 MonoMethodBuilder *mb;
8303 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8304 if ((res = mono_marshal_find_in_cache (cache, func)))
8307 name = g_strdup_printf ("wrapper_native_%p", func);
8308 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8309 mb->method->save_lmf = 1;
8311 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8313 csig = signature_dup (image, sig);
8315 res = mono_mb_create_and_cache (cache, func,
8316 mb, csig, csig->param_count + 16);
8319 mono_marshal_set_wrapper_info (res, NULL);
8321 /* code_for (res); */
8327 * mono_marshal_emit_managed_wrapper:
8329 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8330 * the delegate which wraps the managed method to be called. For closed delegates,
8331 * it could have fewer parameters than the method it wraps.
8332 * THIS_LOC is the memory location where the target of the delegate is stored.
8335 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8337 MonoMethodSignature *sig, *csig;
8339 gboolean closed = FALSE;
8344 /* allocate local 0 (pointer) src_ptr */
8345 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8346 /* allocate local 1 (pointer) dst_ptr */
8347 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8348 /* allocate local 2 (boolean) delete_old */
8349 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8351 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8352 /* Closed delegate */
8353 g_assert (sig->param_count == invoke_sig->param_count + 1);
8355 /* Use a new signature without the first argument */
8356 sig = mono_metadata_signature_dup (sig);
8357 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8358 sig->param_count --;
8361 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8362 /* allocate local 3 to store the return value */
8363 mono_mb_add_local (mb, sig->ret);
8366 mono_mb_emit_icon (mb, 0);
8367 mono_mb_emit_stloc (mb, 2);
8369 /* we first do all conversions */
8370 tmp_locals = alloca (sizeof (int) * sig->param_count);
8371 for (i = 0; i < sig->param_count; i ++) {
8372 MonoType *t = sig->params [i];
8375 case MONO_TYPE_OBJECT:
8376 case MONO_TYPE_CLASS:
8377 case MONO_TYPE_VALUETYPE:
8378 case MONO_TYPE_ARRAY:
8379 case MONO_TYPE_SZARRAY:
8380 case MONO_TYPE_STRING:
8381 case MONO_TYPE_BOOLEAN:
8382 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8391 emit_thread_interrupt_checkpoint (mb);
8394 if (target_handle) {
8395 mono_mb_emit_icon (mb, (gint32)target_handle);
8396 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8399 g_assert_not_reached ();
8401 } else if (closed) {
8402 mono_mb_emit_icon (mb, (gint32)target_handle);
8403 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8406 for (i = 0; i < sig->param_count; i++) {
8407 MonoType *t = sig->params [i];
8409 if (tmp_locals [i]) {
8411 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8413 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8416 mono_mb_emit_ldarg (mb, i);
8419 mono_mb_emit_managed_call (mb, method, NULL);
8421 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8422 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8423 } else if (!sig->ret->byref) {
8424 switch (sig->ret->type) {
8425 case MONO_TYPE_VOID:
8427 case MONO_TYPE_BOOLEAN:
8430 case MONO_TYPE_CHAR:
8442 case MONO_TYPE_OBJECT:
8443 mono_mb_emit_stloc (mb, 3);
8445 case MONO_TYPE_STRING:
8446 csig->ret = &mono_defaults.int_class->byval_arg;
8447 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8449 case MONO_TYPE_VALUETYPE:
8450 case MONO_TYPE_CLASS:
8451 case MONO_TYPE_SZARRAY:
8452 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8455 g_warning ("return type 0x%02x unknown", sig->ret->type);
8456 g_assert_not_reached ();
8459 mono_mb_emit_stloc (mb, 3);
8462 /* Convert byref arguments back */
8463 for (i = 0; i < sig->param_count; i ++) {
8464 MonoType *t = sig->params [i];
8465 MonoMarshalSpec *spec = mspecs [i + 1];
8467 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8468 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8470 else if (t->byref) {
8472 case MONO_TYPE_CLASS:
8473 case MONO_TYPE_VALUETYPE:
8474 case MONO_TYPE_OBJECT:
8475 case MONO_TYPE_STRING:
8476 case MONO_TYPE_BOOLEAN:
8477 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8481 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8482 /* The [Out] information is encoded in the delegate signature */
8484 case MONO_TYPE_SZARRAY:
8485 case MONO_TYPE_CLASS:
8486 case MONO_TYPE_VALUETYPE:
8487 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8490 g_assert_not_reached ();
8495 if (m->retobj_var) {
8496 mono_mb_emit_ldloc (mb, m->retobj_var);
8497 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8498 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8501 if (!MONO_TYPE_IS_VOID(sig->ret))
8502 mono_mb_emit_ldloc (mb, 3);
8503 mono_mb_emit_byte (mb, CEE_RET);
8512 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8514 MonoMethodSignature *sig;
8519 * Under windows, delegates passed to native code must use the STDCALL
8520 * calling convention.
8522 csig->call_convention = MONO_CALL_STDCALL;
8525 sig = mono_method_signature (method);
8527 /* Change default calling convention if needed */
8528 /* Why is this a modopt ? */
8529 if (sig->ret && sig->ret->num_mods) {
8530 for (i = 0; i < sig->ret->num_mods; ++i) {
8531 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8532 g_assert (cmod_class);
8533 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8534 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8535 csig->call_convention = MONO_CALL_C;
8536 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8537 csig->call_convention = MONO_CALL_STDCALL;
8538 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8539 csig->call_convention = MONO_CALL_FASTCALL;
8540 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8541 csig->call_convention = MONO_CALL_THISCALL;
8548 * generates IL code to call managed methods from unmanaged code
8551 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8553 static MonoClass *UnmanagedFunctionPointerAttribute;
8554 MonoMethodSignature *sig, *csig, *invoke_sig;
8555 MonoMethodBuilder *mb;
8556 MonoMethod *res, *invoke;
8557 MonoMarshalSpec **mspecs;
8558 MonoMethodPInvoke piinfo;
8561 EmitMarshalContext m;
8563 g_assert (method != NULL);
8564 g_assert (!mono_method_signature (method)->pinvoke);
8567 * FIXME: Should cache the method+delegate type pair, since the same method
8568 * could be called with different delegates, thus different marshalling
8571 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8572 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8575 invoke = mono_get_delegate_invoke (delegate_klass);
8576 invoke_sig = mono_method_signature (invoke);
8578 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8579 mono_method_get_marshal_info (invoke, mspecs);
8581 sig = mono_method_signature (method);
8583 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8585 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8586 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8588 /* we copy the signature, so that we can modify it */
8590 /* Need to free this later */
8591 csig = mono_metadata_signature_dup (invoke_sig);
8593 csig = signature_dup (method->klass->image, invoke_sig);
8602 m.image = method->klass->image;
8604 mono_marshal_set_callconv_from_modopt (invoke, csig);
8606 /* Handle the UnmanagedFunctionPointerAttribute */
8607 if (!UnmanagedFunctionPointerAttribute)
8608 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8610 /* The attribute is only available in Net 2.0 */
8611 if (UnmanagedFunctionPointerAttribute) {
8612 MonoCustomAttrInfo *cinfo;
8613 MonoCustomAttrEntry *attr;
8616 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8617 * contents of the attribute without constructing it, as that might not be
8618 * possible when running in cross-compiling mode.
8620 cinfo = mono_custom_attrs_from_class (delegate_klass);
8623 for (i = 0; i < cinfo->num_attrs; ++i) {
8624 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8625 attr = &cinfo->attrs [i];
8631 MonoArray *typed_args, *named_args;
8632 CattrNamedArg *arginfo;
8636 MonoBoolean set_last_error = 0;
8637 MonoBoolean best_fit_mapping = 0;
8638 MonoBoolean throw_on_unmappable = 0;
8640 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8642 g_assert (mono_array_length (typed_args) == 1);
8645 o = mono_array_get (typed_args, MonoObject*, 0);
8646 call_conv = *(gint32*)mono_object_unbox (o);
8649 for (i = 0; i < mono_array_length (named_args); ++i) {
8650 CattrNamedArg *narg = &arginfo [i];
8652 o = mono_array_get (named_args, MonoObject*, i);
8654 g_assert (narg->field);
8655 if (!strcmp (narg->field->name, "CharSet")) {
8656 charset = *(gint32*)mono_object_unbox (o);
8657 } else if (!strcmp (narg->field->name, "SetLastError")) {
8658 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8659 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8660 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8661 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8662 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8664 g_assert_not_reached ();
8670 memset (&piinfo, 0, sizeof (piinfo));
8672 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8674 csig->call_convention = call_conv - 1;
8677 if (cinfo && !cinfo->cached)
8678 mono_custom_attrs_free (cinfo);
8681 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8684 res = mono_mb_create_and_cache (cache, method,
8685 mb, csig, sig->param_count + 16);
8688 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8692 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8694 mono_metadata_free_marshal_spec (mspecs [i]);
8697 /* code_for (res); */
8703 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8706 MonoMethodSignature *sig;
8707 MonoMethodBuilder *mb;
8712 method = mono_get_method (image, token, NULL);
8715 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8716 MonoMethodSignature *csig;
8717 MonoMarshalSpec **mspecs;
8718 EmitMarshalContext m;
8720 sig = mono_method_signature (method);
8721 g_assert (!sig->hasthis);
8723 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8724 mono_method_get_marshal_info (method, mspecs);
8726 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8727 csig = signature_dup (image, sig);
8738 mono_marshal_set_callconv_from_modopt (method, csig);
8740 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8742 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8745 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8748 for (i = sig->param_count; i >= 0; i--)
8750 mono_metadata_free_marshal_spec (mspecs [i]);
8753 return mono_compile_method (method);
8756 sig = mono_method_signature (method);
8757 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8759 param_count = sig->param_count + sig->hasthis;
8760 for (i = 0; i < param_count; i++)
8761 mono_mb_emit_ldarg (mb, i);
8763 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8764 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8766 mono_mb_emit_op (mb, CEE_CALL, method);
8767 mono_mb_emit_byte (mb, CEE_RET);
8770 method = mono_mb_create_method (mb, sig, param_count);
8773 return mono_compile_method (method);
8776 static MonoReflectionType *
8777 type_from_handle (MonoType *handle)
8779 MonoDomain *domain = mono_domain_get ();
8780 MonoClass *klass = mono_class_from_mono_type (handle);
8782 MONO_ARCH_SAVE_REGS;
8784 mono_class_init (klass);
8785 return mono_type_get_object (domain, handle);
8789 * mono_marshal_get_isinst:
8790 * @klass: the type of the field
8792 * This method generates a function which can be used to check if an object is
8793 * an instance of the given type, icluding the case where the object is a proxy.
8794 * The generated function has the following signature:
8795 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8798 mono_marshal_get_isinst (MonoClass *klass)
8800 static MonoMethodSignature *isint_sig = NULL;
8803 int pos_was_ok, pos_failed, pos_end, pos_end2;
8805 MonoMethodBuilder *mb;
8807 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8808 if ((res = mono_marshal_find_in_cache (cache, klass)))
8812 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8813 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8814 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8815 isint_sig->pinvoke = 0;
8818 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8819 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8822 mb->method->save_lmf = 1;
8824 /* check if the object is a proxy that needs special cast */
8825 mono_mb_emit_ldarg (mb, 0);
8826 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8827 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8829 /* The result of MONO_ISINST can be:
8830 0) the type check succeeded
8831 1) the type check did not succeed
8832 2) a CanCastTo call is needed */
8834 mono_mb_emit_byte (mb, CEE_DUP);
8835 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8837 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8838 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8840 /* get the real proxy from the transparent proxy*/
8842 mono_mb_emit_ldarg (mb, 0);
8843 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8844 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8848 mono_mb_patch_branch (mb, pos_failed);
8849 mono_mb_emit_byte (mb, CEE_LDNULL);
8850 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8854 mono_mb_patch_branch (mb, pos_was_ok);
8855 mono_mb_emit_byte (mb, CEE_POP);
8856 mono_mb_emit_ldarg (mb, 0);
8860 mono_mb_patch_branch (mb, pos_end);
8861 mono_mb_patch_branch (mb, pos_end2);
8862 mono_mb_emit_byte (mb, CEE_RET);
8864 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8871 * mono_marshal_get_castclass:
8872 * @klass: the type of the field
8874 * This method generates a function which can be used to cast an object to
8875 * an instance of the given type, icluding the case where the object is a proxy.
8876 * The generated function has the following signature:
8877 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8880 mono_marshal_get_castclass (MonoClass *klass)
8882 static MonoMethodSignature *castclass_sig = NULL;
8885 int pos_was_ok, pos_was_ok2;
8887 MonoMethodBuilder *mb;
8889 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8890 if ((res = mono_marshal_find_in_cache (cache, klass)))
8893 if (!castclass_sig) {
8894 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8895 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8896 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8897 castclass_sig->pinvoke = 0;
8900 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8901 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8904 mb->method->save_lmf = 1;
8906 /* check if the object is a proxy that needs special cast */
8907 mono_mb_emit_ldarg (mb, 0);
8908 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8909 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8911 /* The result of MONO_ISINST can be:
8912 0) the cast is valid
8913 1) cast of unknown proxy type
8914 or an exception if the cast is is invalid
8917 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8919 /* get the real proxy from the transparent proxy*/
8921 mono_mb_emit_ldarg (mb, 0);
8922 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8923 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8926 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8929 mono_mb_patch_branch (mb, pos_was_ok);
8930 mono_mb_patch_branch (mb, pos_was_ok2);
8931 mono_mb_emit_ldarg (mb, 0);
8934 mono_mb_emit_byte (mb, CEE_RET);
8936 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8943 mono_marshal_get_proxy_cancast (MonoClass *klass)
8945 static MonoMethodSignature *isint_sig = NULL;
8948 int pos_failed, pos_end;
8950 MonoMethod *can_cast_to;
8951 MonoMethodDesc *desc;
8952 MonoMethodBuilder *mb;
8954 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8955 if ((res = mono_marshal_find_in_cache (cache, klass)))
8959 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8960 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8961 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8962 isint_sig->pinvoke = 0;
8965 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8966 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8969 mb->method->save_lmf = 1;
8971 /* get the real proxy from the transparent proxy*/
8972 mono_mb_emit_ldarg (mb, 0);
8973 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8974 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8976 /* get the reflection type from the type handle */
8977 mono_mb_emit_ptr (mb, &klass->byval_arg);
8978 mono_mb_emit_icall (mb, type_from_handle);
8980 mono_mb_emit_ldarg (mb, 0);
8982 /* make the call to CanCastTo (type, ob) */
8983 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8984 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8985 g_assert (can_cast_to);
8986 mono_method_desc_free (desc);
8987 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8989 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8991 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8992 mono_mb_emit_ptr (mb, &klass->byval_arg);
8993 mono_mb_emit_icall (mb, type_from_handle);
8994 mono_mb_emit_ldarg (mb, 0);
8996 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8997 emit_thread_interrupt_checkpoint (mb);
8999 mono_mb_emit_ldarg (mb, 0);
9000 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9004 mono_mb_patch_branch (mb, pos_failed);
9005 mono_mb_emit_byte (mb, CEE_LDNULL);
9009 mono_mb_patch_branch (mb, pos_end);
9010 mono_mb_emit_byte (mb, CEE_RET);
9012 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9019 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9022 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9023 klass = mono_class_from_mono_type (rtype->type);
9024 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9028 * mono_marshal_get_struct_to_ptr:
9031 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9034 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9036 MonoMethodBuilder *mb;
9037 static MonoMethod *stoptr = NULL;
9040 g_assert (klass != NULL);
9042 mono_marshal_load_type_info (klass);
9044 if (klass->marshal_info->str_to_ptr)
9045 return klass->marshal_info->str_to_ptr;
9048 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9051 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9053 if (klass->blittable) {
9054 mono_mb_emit_byte (mb, CEE_LDARG_1);
9055 mono_mb_emit_byte (mb, CEE_LDARG_0);
9056 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9057 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9058 mono_mb_emit_byte (mb, CEE_PREFIX1);
9059 mono_mb_emit_byte (mb, CEE_CPBLK);
9062 /* allocate local 0 (pointer) src_ptr */
9063 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9064 /* allocate local 1 (pointer) dst_ptr */
9065 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9066 /* allocate local 2 (boolean) delete_old */
9067 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9068 mono_mb_emit_byte (mb, CEE_LDARG_2);
9069 mono_mb_emit_stloc (mb, 2);
9071 /* initialize src_ptr to point to the start of object data */
9072 mono_mb_emit_byte (mb, CEE_LDARG_0);
9073 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9074 mono_mb_emit_stloc (mb, 0);
9076 /* initialize dst_ptr */
9077 mono_mb_emit_byte (mb, CEE_LDARG_1);
9078 mono_mb_emit_stloc (mb, 1);
9080 emit_struct_conv (mb, klass, FALSE);
9083 mono_mb_emit_byte (mb, CEE_RET);
9085 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9088 klass->marshal_info->str_to_ptr = res;
9093 * mono_marshal_get_ptr_to_struct:
9096 * generates IL code for PtrToStructure (IntPtr src, object structure)
9099 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9101 MonoMethodBuilder *mb;
9102 static MonoMethodSignature *ptostr = NULL;
9105 g_assert (klass != NULL);
9107 mono_marshal_load_type_info (klass);
9109 if (klass->marshal_info->ptr_to_str)
9110 return klass->marshal_info->ptr_to_str;
9113 MonoMethodSignature *sig;
9115 /* Create the signature corresponding to
9116 static void PtrToStructure (IntPtr ptr, object structure);
9117 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9118 sig = mono_create_icall_signature ("void ptr object");
9119 sig = signature_dup (mono_defaults.corlib, sig);
9121 mono_memory_barrier ();
9125 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9127 if (klass->blittable) {
9128 mono_mb_emit_byte (mb, CEE_LDARG_1);
9129 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9130 mono_mb_emit_byte (mb, CEE_LDARG_0);
9131 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9132 mono_mb_emit_byte (mb, CEE_PREFIX1);
9133 mono_mb_emit_byte (mb, CEE_CPBLK);
9136 /* allocate local 0 (pointer) src_ptr */
9137 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9138 /* allocate local 1 (pointer) dst_ptr */
9139 mono_mb_add_local (mb, &klass->this_arg);
9141 /* initialize src_ptr to point to the start of object data */
9142 mono_mb_emit_byte (mb, CEE_LDARG_0);
9143 mono_mb_emit_stloc (mb, 0);
9145 /* initialize dst_ptr */
9146 mono_mb_emit_byte (mb, CEE_LDARG_1);
9147 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9148 mono_mb_emit_stloc (mb, 1);
9150 emit_struct_conv (mb, klass, TRUE);
9153 mono_mb_emit_byte (mb, CEE_RET);
9155 res = mono_mb_create_method (mb, ptostr, 0);
9158 klass->marshal_info->ptr_to_str = res;
9163 * generates IL code for the synchronized wrapper: the generated method
9164 * calls METHOD while locking 'this' or the parent type.
9167 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9169 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9170 MonoMethodSignature *sig;
9171 MonoExceptionClause *clause;
9172 MonoMethodBuilder *mb;
9175 int i, pos, this_local, ret_local = 0;
9179 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9182 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9183 if ((res = mono_marshal_find_in_cache (cache, method)))
9186 sig = signature_dup (method->klass->image, mono_method_signature (method));
9189 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9192 if (!MONO_TYPE_IS_VOID (sig->ret))
9193 ret_local = mono_mb_add_local (mb, sig->ret);
9195 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9196 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9197 /* This will throw the type load exception when the wrapper is compiled */
9198 mono_mb_emit_byte (mb, CEE_LDNULL);
9199 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9200 mono_mb_emit_byte (mb, CEE_POP);
9202 if (!MONO_TYPE_IS_VOID (sig->ret))
9203 mono_mb_emit_ldloc (mb, ret_local);
9204 mono_mb_emit_byte (mb, CEE_RET);
9206 res = mono_mb_create_and_cache (cache, method,
9207 mb, sig, sig->param_count + 16);
9214 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9216 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9217 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9219 mono_loader_lock ();
9221 if (!enter_method) {
9222 MonoMethodDesc *desc;
9224 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9225 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9226 g_assert (enter_method);
9227 mono_method_desc_free (desc);
9229 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9230 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9231 g_assert (exit_method);
9232 mono_method_desc_free (desc);
9234 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9235 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9236 g_assert (gettypefromhandle_method);
9237 mono_method_desc_free (desc);
9240 mono_loader_unlock ();
9242 /* Push this or the type object */
9243 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9244 /* We have special handling for this in the JIT */
9245 int index = mono_mb_add_data (mb, method->klass);
9246 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9247 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9248 mono_mb_emit_i4 (mb, index);
9250 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9253 mono_mb_emit_ldarg (mb, 0);
9254 mono_mb_emit_stloc (mb, this_local);
9256 /* Call Monitor::Enter() */
9257 mono_mb_emit_ldloc (mb, this_local);
9258 mono_mb_emit_managed_call (mb, enter_method, NULL);
9260 clause->try_offset = mono_mb_get_label (mb);
9262 /* Call the method */
9264 mono_mb_emit_ldarg (mb, 0);
9265 for (i = 0; i < sig->param_count; i++)
9266 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9268 mono_mb_emit_managed_call (mb, method, NULL);
9270 if (!MONO_TYPE_IS_VOID (sig->ret))
9271 mono_mb_emit_stloc (mb, ret_local);
9273 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9275 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9276 clause->handler_offset = mono_mb_get_label (mb);
9278 /* Call Monitor::Exit() */
9279 mono_mb_emit_ldloc (mb, this_local);
9280 mono_mb_emit_managed_call (mb, exit_method, NULL);
9281 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9283 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9285 mono_mb_patch_branch (mb, pos);
9286 if (!MONO_TYPE_IS_VOID (sig->ret))
9287 mono_mb_emit_ldloc (mb, ret_local);
9288 mono_mb_emit_byte (mb, CEE_RET);
9290 mono_mb_set_clauses (mb, 1, clause);
9292 res = mono_mb_create_and_cache (cache, method,
9293 mb, sig, sig->param_count + 16);
9301 * the returned method calls 'method' unboxing the this argument
9304 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9306 MonoMethodSignature *sig = mono_method_signature (method);
9308 MonoMethodBuilder *mb;
9312 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9313 if ((res = mono_marshal_find_in_cache (cache, method)))
9316 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9318 g_assert (sig->hasthis);
9320 mono_mb_emit_ldarg (mb, 0);
9321 mono_mb_emit_icon (mb, sizeof (MonoObject));
9322 mono_mb_emit_byte (mb, CEE_ADD);
9323 for (i = 0; i < sig->param_count; ++i)
9324 mono_mb_emit_ldarg (mb, i + 1);
9325 mono_mb_emit_managed_call (mb, method, NULL);
9326 mono_mb_emit_byte (mb, CEE_RET);
9328 res = mono_mb_create_and_cache (cache, method,
9329 mb, sig, sig->param_count + 16);
9332 /* code_for (res); */
9338 mono_marshal_get_stelemref ()
9340 static MonoMethod* ret = NULL;
9341 MonoMethodSignature *sig;
9342 MonoMethodBuilder *mb;
9344 guint32 b1, b2, b3, b4;
9347 int array_slot_addr;
9352 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9355 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9357 /* void stelemref (void* array, int idx, void* value) */
9358 sig->ret = &mono_defaults.void_class->byval_arg;
9359 sig->params [0] = &mono_defaults.object_class->byval_arg;
9360 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9361 sig->params [2] = &mono_defaults.object_class->byval_arg;
9363 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9364 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9365 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9369 <ldelema (bound check)>
9373 aklass = array->vtable->klass->element_class;
9374 vklass = value->vtable->klass;
9376 if (vklass->idepth < aklass->idepth)
9379 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9383 *array_slot_addr = value;
9387 if (mono_object_isinst (value, aklass))
9390 throw new ArrayTypeMismatchException ();
9393 /* ldelema (implicit bound check) */
9394 mono_mb_emit_ldarg (mb, 0);
9395 mono_mb_emit_ldarg (mb, 1);
9396 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9397 mono_mb_emit_stloc (mb, array_slot_addr);
9399 /* if (!value) goto do_store */
9400 mono_mb_emit_ldarg (mb, 2);
9401 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9403 /* aklass = array->vtable->klass->element_class */
9404 mono_mb_emit_ldarg (mb, 0);
9405 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9406 mono_mb_emit_byte (mb, CEE_LDIND_I);
9407 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9408 mono_mb_emit_byte (mb, CEE_LDIND_I);
9409 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9410 mono_mb_emit_byte (mb, CEE_LDIND_I);
9411 mono_mb_emit_stloc (mb, aklass);
9413 /* vklass = value->vtable->klass */
9414 mono_mb_emit_ldarg (mb, 2);
9415 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9416 mono_mb_emit_byte (mb, CEE_LDIND_I);
9417 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9418 mono_mb_emit_byte (mb, CEE_LDIND_I);
9419 mono_mb_emit_stloc (mb, vklass);
9421 /* if (vklass->idepth < aklass->idepth) goto failue */
9422 mono_mb_emit_ldloc (mb, vklass);
9423 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9424 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9426 mono_mb_emit_ldloc (mb, aklass);
9427 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9428 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9430 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9432 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9433 mono_mb_emit_ldloc (mb, vklass);
9434 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9435 mono_mb_emit_byte (mb, CEE_LDIND_I);
9437 mono_mb_emit_ldloc (mb, aklass);
9438 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9439 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9440 mono_mb_emit_icon (mb, 1);
9441 mono_mb_emit_byte (mb, CEE_SUB);
9442 mono_mb_emit_icon (mb, sizeof (void*));
9443 mono_mb_emit_byte (mb, CEE_MUL);
9444 mono_mb_emit_byte (mb, CEE_ADD);
9445 mono_mb_emit_byte (mb, CEE_LDIND_I);
9447 mono_mb_emit_ldloc (mb, aklass);
9449 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9451 copy_pos = mono_mb_get_label (mb);
9453 mono_mb_patch_branch (mb, b1);
9454 mono_mb_emit_ldloc (mb, array_slot_addr);
9455 mono_mb_emit_ldarg (mb, 2);
9456 mono_mb_emit_byte (mb, CEE_STIND_REF);
9458 mono_mb_emit_byte (mb, CEE_RET);
9461 mono_mb_patch_branch (mb, b2);
9462 mono_mb_patch_branch (mb, b3);
9464 mono_mb_emit_ldarg (mb, 2);
9465 mono_mb_emit_ldloc (mb, aklass);
9466 mono_mb_emit_icall (mb, mono_object_isinst);
9468 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9469 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9470 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9472 mono_mb_emit_byte (mb, CEE_RET);
9473 ret = mono_mb_create_method (mb, sig, 4);
9484 /* LOCKING: vars accessed under the marshal lock */
9485 static ArrayElemAddr *elem_addr_cache = NULL;
9486 static int elem_addr_cache_size = 0;
9487 static int elem_addr_cache_next = 0;
9490 * mono_marshal_get_array_address:
9491 * @rank: rank of the array type
9492 * @elem_size: size in bytes of an element of an array.
9494 * Returns a MonoMethd that implements the code to get the address
9495 * of an element in a multi-dimenasional array of @rank dimensions.
9496 * The returned method takes an array as the first argument and then
9497 * @rank indexes for the @rank dimensions.
9500 mono_marshal_get_array_address (int rank, int elem_size)
9503 MonoMethodBuilder *mb;
9504 MonoMethodSignature *sig;
9505 int i, bounds, ind, realidx;
9506 int branch_pos, *branch_positions;
9510 mono_marshal_lock ();
9511 for (i = 0; i < elem_addr_cache_next; ++i) {
9512 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9513 ret = elem_addr_cache [i].method;
9517 mono_marshal_unlock ();
9521 branch_positions = g_new0 (int, rank);
9523 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9525 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9526 sig->ret = &mono_defaults.int_class->byval_arg;
9527 sig->params [0] = &mono_defaults.object_class->byval_arg;
9528 for (i = 0; i < rank; ++i) {
9529 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9532 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9534 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9535 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9536 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9538 /* bounds = array->bounds; */
9539 mono_mb_emit_ldarg (mb, 0);
9540 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9541 mono_mb_emit_byte (mb, CEE_LDIND_I);
9542 mono_mb_emit_stloc (mb, bounds);
9544 /* ind is the overall element index, realidx is the partial index in a single dimension */
9545 /* ind = idx0 - bounds [0].lower_bound */
9546 mono_mb_emit_ldarg (mb, 1);
9547 mono_mb_emit_ldloc (mb, bounds);
9548 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9549 mono_mb_emit_byte (mb, CEE_ADD);
9550 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9551 mono_mb_emit_byte (mb, CEE_SUB);
9552 mono_mb_emit_stloc (mb, ind);
9553 /* if (ind >= bounds [0].length) goto exeception; */
9554 mono_mb_emit_ldloc (mb, ind);
9555 mono_mb_emit_ldloc (mb, bounds);
9556 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9557 mono_mb_emit_byte (mb, CEE_ADD);
9558 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9559 /* note that we use unsigned comparison */
9560 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9562 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9563 * We could also decide to ignore the passed elem_size and get it
9564 * from the array object, to reduce the number of methods we generate:
9565 * the additional cost is 3 memory loads and a non-immediate mul.
9567 for (i = 1; i < rank; ++i) {
9568 /* realidx = idxi - bounds [i].lower_bound */
9569 mono_mb_emit_ldarg (mb, 1 + i);
9570 mono_mb_emit_ldloc (mb, bounds);
9571 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9572 mono_mb_emit_byte (mb, CEE_ADD);
9573 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9574 mono_mb_emit_byte (mb, CEE_SUB);
9575 mono_mb_emit_stloc (mb, realidx);
9576 /* if (realidx >= bounds [i].length) goto exeception; */
9577 mono_mb_emit_ldloc (mb, realidx);
9578 mono_mb_emit_ldloc (mb, bounds);
9579 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9580 mono_mb_emit_byte (mb, CEE_ADD);
9581 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9582 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9583 /* ind = ind * bounds [i].length + realidx */
9584 mono_mb_emit_ldloc (mb, ind);
9585 mono_mb_emit_ldloc (mb, bounds);
9586 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9587 mono_mb_emit_byte (mb, CEE_ADD);
9588 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9589 mono_mb_emit_byte (mb, CEE_MUL);
9590 mono_mb_emit_ldloc (mb, realidx);
9591 mono_mb_emit_byte (mb, CEE_ADD);
9592 mono_mb_emit_stloc (mb, ind);
9595 /* return array->vector + ind * element_size */
9596 mono_mb_emit_ldarg (mb, 0);
9597 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9598 mono_mb_emit_ldloc (mb, ind);
9599 mono_mb_emit_icon (mb, elem_size);
9600 mono_mb_emit_byte (mb, CEE_MUL);
9601 mono_mb_emit_byte (mb, CEE_ADD);
9602 mono_mb_emit_byte (mb, CEE_RET);
9604 /* patch the branches to get here and throw */
9605 for (i = 1; i < rank; ++i) {
9606 mono_mb_patch_branch (mb, branch_positions [i]);
9608 mono_mb_patch_branch (mb, branch_pos);
9609 /* throw exception */
9610 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9612 g_free (branch_positions);
9613 ret = mono_mb_create_method (mb, sig, 4);
9616 /* cache the result */
9618 mono_marshal_lock ();
9619 for (i = 0; i < elem_addr_cache_next; ++i) {
9620 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9621 /* FIXME: free ret */
9622 ret = elem_addr_cache [i].method;
9628 ElementAddrWrapperInfo *info;
9630 if (elem_addr_cache_next >= elem_addr_cache_size) {
9631 int new_size = elem_addr_cache_size + 4;
9632 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9633 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9634 g_free (elem_addr_cache);
9635 elem_addr_cache = new_array;
9636 elem_addr_cache_size = new_size;
9638 elem_addr_cache [elem_addr_cache_next].rank = rank;
9639 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9640 elem_addr_cache [elem_addr_cache_next].method = ret;
9642 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
9644 info->elem_size = elem_size;
9646 mono_marshal_set_wrapper_info (ret, info);
9648 mono_marshal_unlock ();
9653 mono_marshal_alloc (gulong size)
9658 res = CoTaskMemAlloc (size);
9660 res = g_try_malloc ((gulong)size);
9662 mono_gc_out_of_memory ((gulong)size);
9668 mono_marshal_free (gpointer ptr)
9671 CoTaskMemFree (ptr);
9678 mono_marshal_free_array (gpointer *ptr, int size)
9685 for (i = 0; i < size; i++)
9691 mono_marshal_string_to_utf16 (MonoString *s)
9693 return s ? mono_string_chars (s) : NULL;
9697 mono_marshal_string_to_utf16_copy (MonoString *s)
9702 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9703 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9704 res [mono_string_length (s)] = 0;
9710 * mono_marshal_set_last_error:
9712 * This function is invoked to set the last error value from a P/Invoke call
9713 * which has SetLastError set.
9716 mono_marshal_set_last_error (void)
9719 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9721 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9726 mono_marshal_set_last_error_windows (int error)
9729 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9734 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9735 gpointer dest, gint32 length)
9740 MONO_ARCH_SAVE_REGS;
9742 MONO_CHECK_ARG_NULL (src);
9743 MONO_CHECK_ARG_NULL (dest);
9745 if (src->obj.vtable->klass->rank != 1)
9746 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9747 if (start_index < 0)
9748 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9750 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9751 if (start_index + length > mono_array_length (src))
9752 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9754 element_size = mono_array_element_size (src->obj.vtable->klass);
9756 /* no references should be involved */
9757 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9759 memcpy (dest, source_addr, length * element_size);
9763 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9764 MonoArray *dest, gint32 length)
9769 MONO_ARCH_SAVE_REGS;
9771 MONO_CHECK_ARG_NULL (src);
9772 MONO_CHECK_ARG_NULL (dest);
9774 if (dest->obj.vtable->klass->rank != 1)
9775 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9776 if (start_index < 0)
9777 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9779 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9780 if (start_index + length > mono_array_length (dest))
9781 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9783 element_size = mono_array_element_size (dest->obj.vtable->klass);
9785 /* no references should be involved */
9786 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9788 memcpy (dest_addr, src, length * element_size);
9791 #if NO_UNALIGNED_ACCESS
9792 #define RETURN_UNALIGNED(type, addr) \
9795 memcpy(&val, p + offset, sizeof(val)); \
9798 #define WRITE_UNALIGNED(type, addr, val) \
9799 memcpy(addr, &val, sizeof(type))
9801 #define RETURN_UNALIGNED(type, addr) \
9802 return *(type*)(p + offset);
9803 #define WRITE_UNALIGNED(type, addr, val) \
9804 (*(type *)(addr) = (val))
9808 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9812 MONO_ARCH_SAVE_REGS;
9814 RETURN_UNALIGNED(gpointer, p + offset);
9818 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9822 MONO_ARCH_SAVE_REGS;
9824 return *(unsigned char*)(p + offset);
9828 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9832 MONO_ARCH_SAVE_REGS;
9834 RETURN_UNALIGNED(gint16, p + offset);
9838 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9842 MONO_ARCH_SAVE_REGS;
9844 RETURN_UNALIGNED(gint32, p + offset);
9848 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9852 MONO_ARCH_SAVE_REGS;
9854 RETURN_UNALIGNED(gint64, p + offset);
9858 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9862 MONO_ARCH_SAVE_REGS;
9864 *(unsigned char*)(p + offset) = val;
9868 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9872 MONO_ARCH_SAVE_REGS;
9874 WRITE_UNALIGNED(gpointer, p + offset, val);
9878 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9882 MONO_ARCH_SAVE_REGS;
9884 WRITE_UNALIGNED(gint16, p + offset, val);
9888 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9892 MONO_ARCH_SAVE_REGS;
9894 WRITE_UNALIGNED(gint32, p + offset, val);
9898 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9902 MONO_ARCH_SAVE_REGS;
9904 WRITE_UNALIGNED(gint64, p + offset, val);
9908 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9910 MONO_ARCH_SAVE_REGS;
9915 return mono_string_new (mono_domain_get (), ptr);
9919 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9921 MONO_ARCH_SAVE_REGS;
9924 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9925 g_assert_not_reached ();
9928 return mono_string_new_len (mono_domain_get (), ptr, len);
9933 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9935 MonoDomain *domain = mono_domain_get ();
9939 MONO_ARCH_SAVE_REGS;
9947 return mono_string_new_utf16 (domain, ptr, len);
9951 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9953 MonoDomain *domain = mono_domain_get ();
9955 MONO_ARCH_SAVE_REGS;
9958 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9959 g_assert_not_reached ();
9962 return mono_string_new_utf16 (domain, ptr, len);
9967 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9969 MONO_ARCH_SAVE_REGS;
9971 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9975 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9981 MONO_ARCH_SAVE_REGS;
9983 MONO_CHECK_ARG_NULL (rtype);
9986 klass = mono_class_from_mono_type (type);
9987 if (!mono_class_init (klass))
9988 mono_raise_exception (mono_class_get_exception_for_failure (klass));
9990 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9992 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9996 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9997 exc = mono_get_exception_argument ("t", msg);
9999 mono_raise_exception (exc);
10003 return mono_class_native_size (klass, NULL);
10007 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10009 MonoMethod *method;
10012 MONO_ARCH_SAVE_REGS;
10014 MONO_CHECK_ARG_NULL (obj);
10015 MONO_CHECK_ARG_NULL (dst);
10017 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10021 pa [2] = &delete_old;
10023 mono_runtime_invoke (method, NULL, pa, NULL);
10027 ptr_to_structure (gpointer src, MonoObject *dst)
10029 MonoMethod *method;
10032 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10037 mono_runtime_invoke (method, NULL, pa, NULL);
10041 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10045 MONO_ARCH_SAVE_REGS;
10047 MONO_CHECK_ARG_NULL (src);
10048 MONO_CHECK_ARG_NULL (dst);
10050 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10052 if (t->type == MONO_TYPE_VALUETYPE) {
10053 MonoException *exc;
10056 tmp = g_strdup_printf ("Destination is a boxed value type.");
10057 exc = mono_get_exception_argument ("dst", tmp);
10060 mono_raise_exception (exc);
10064 ptr_to_structure (src, dst);
10068 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10071 MonoDomain *domain = mono_domain_get ();
10074 MONO_ARCH_SAVE_REGS;
10076 MONO_CHECK_ARG_NULL (src);
10077 MONO_CHECK_ARG_NULL (type);
10079 klass = mono_class_from_mono_type (type->type);
10080 if (!mono_class_init (klass))
10081 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10083 res = mono_object_new (domain, klass);
10085 ptr_to_structure (src, res);
10091 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10093 MonoMarshalType *info;
10096 int match_index = -1;
10098 MONO_ARCH_SAVE_REGS;
10100 MONO_CHECK_ARG_NULL (type);
10101 MONO_CHECK_ARG_NULL (field_name);
10103 fname = mono_string_to_utf8 (field_name);
10104 klass = mono_class_from_mono_type (type->type);
10105 if (!mono_class_init (klass))
10106 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10108 while (klass && match_index == -1) {
10109 MonoClassField* field;
10111 gpointer iter = NULL;
10112 while ((field = mono_class_get_fields (klass, &iter))) {
10113 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10115 if (!strcmp (fname, mono_field_get_name (field))) {
10122 if (match_index == -1)
10123 klass = klass->parent;
10128 if(match_index == -1) {
10129 MonoException* exc;
10132 /* Get back original class instance */
10133 klass = mono_class_from_mono_type (type->type);
10135 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10136 exc = mono_get_exception_argument ("fieldName", tmp);
10139 mono_raise_exception ((MonoException*)exc);
10142 info = mono_marshal_load_type_info (klass);
10143 return info->fields [match_index].offset;
10147 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10152 tres = mono_string_to_utf8 (string);
10156 len = strlen (tres) + 1;
10157 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10158 memcpy (ret, tres, len);
10163 return mono_string_to_utf8 (string);
10168 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10170 MONO_ARCH_SAVE_REGS;
10172 if (string == NULL)
10175 #ifdef TARGET_WIN32
10176 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10177 ((mono_string_length (string) + 1) * 2);
10179 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10181 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10182 res [mono_string_length (string)] = 0;
10188 mono_struct_delete_old (MonoClass *klass, char *ptr)
10190 MonoMarshalType *info;
10193 info = mono_marshal_load_type_info (klass);
10195 for (i = 0; i < info->num_fields; i++) {
10196 MonoMarshalNative ntype;
10197 MonoMarshalConv conv;
10198 MonoType *ftype = info->fields [i].field->type;
10201 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10204 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10205 klass->unicode, &conv);
10207 cpos = ptr + info->fields [i].offset;
10210 case MONO_MARSHAL_CONV_NONE:
10211 if (MONO_TYPE_ISSTRUCT (ftype)) {
10212 mono_struct_delete_old (ftype->data.klass, cpos);
10216 case MONO_MARSHAL_CONV_STR_LPWSTR:
10217 /* We assume this field points inside a MonoString */
10219 case MONO_MARSHAL_CONV_STR_LPTSTR:
10220 #ifdef TARGET_WIN32
10221 /* We assume this field points inside a MonoString
10225 case MONO_MARSHAL_CONV_STR_LPSTR:
10226 case MONO_MARSHAL_CONV_STR_BSTR:
10227 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10228 case MONO_MARSHAL_CONV_STR_TBSTR:
10229 mono_marshal_free (*(gpointer *)cpos);
10239 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10243 MONO_ARCH_SAVE_REGS;
10245 MONO_CHECK_ARG_NULL (src);
10246 MONO_CHECK_ARG_NULL (type);
10248 klass = mono_class_from_mono_type (type->type);
10249 if (!mono_class_init (klass))
10250 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10252 mono_struct_delete_old (klass, (char *)src);
10256 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10260 MONO_ARCH_SAVE_REGS;
10262 if ((gulong)size == 0)
10263 /* This returns a valid pointer for size 0 on MS.NET */
10267 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10269 res = g_try_malloc ((gulong)size);
10272 mono_gc_out_of_memory ((gulong)size);
10278 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10283 mono_gc_out_of_memory ((gulong)size);
10288 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10290 res = g_try_realloc (ptr, (gulong)size);
10293 mono_gc_out_of_memory ((gulong)size);
10299 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10301 MONO_ARCH_SAVE_REGS;
10311 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10313 MONO_ARCH_SAVE_REGS;
10316 return CoTaskMemAlloc (size);
10318 return g_try_malloc ((gulong)size);
10323 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10325 MONO_ARCH_SAVE_REGS;
10328 CoTaskMemFree (ptr);
10335 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10337 MONO_ARCH_SAVE_REGS;
10340 return CoTaskMemRealloc (ptr, size);
10342 return g_try_realloc (ptr, (gulong)size);
10347 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10349 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10353 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10355 MonoClass *klass = mono_type_get_class (type->type);
10356 if (!mono_class_init (klass))
10357 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10359 return mono_ftnptr_to_delegate (klass, ftn);
10363 * mono_marshal_is_loading_type_info:
10365 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10369 mono_marshal_is_loading_type_info (MonoClass *klass)
10371 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10373 return g_slist_find (loads_list, klass) != NULL;
10377 * mono_marshal_load_type_info:
10379 * Initialize klass->marshal_info using information from metadata. This function can
10380 * recursively call itself, and the caller is responsible to avoid that by calling
10381 * mono_marshal_is_loading_type_info () beforehand.
10383 * LOCKING: Acquires the loader lock.
10386 mono_marshal_load_type_info (MonoClass* klass)
10389 guint32 native_size = 0, min_align = 1;
10390 MonoMarshalType *info;
10391 MonoClassField* field;
10394 GSList *loads_list;
10396 g_assert (klass != NULL);
10398 if (klass->marshal_info)
10399 return klass->marshal_info;
10401 if (!klass->inited)
10402 mono_class_init (klass);
10404 mono_loader_lock ();
10406 if (klass->marshal_info) {
10407 mono_loader_unlock ();
10408 return klass->marshal_info;
10412 * This function can recursively call itself, so we keep the list of classes which are
10413 * under initialization in a TLS list.
10415 g_assert (!mono_marshal_is_loading_type_info (klass));
10416 loads_list = TlsGetValue (load_type_info_tls_id);
10417 loads_list = g_slist_prepend (loads_list, klass);
10418 TlsSetValue (load_type_info_tls_id, loads_list);
10421 while ((field = mono_class_get_fields (klass, &iter))) {
10422 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10424 if (mono_field_is_deleted (field))
10429 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10431 /* The mempool is protected by the loader lock */
10432 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10433 info->num_fields = count;
10435 /* Try to find a size for this type in metadata */
10436 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10438 if (klass->parent) {
10439 int parent_size = mono_class_native_size (klass->parent, NULL);
10441 /* Add parent size to real size */
10442 native_size += parent_size;
10443 info->native_size = parent_size;
10448 while ((field = mono_class_get_fields (klass, &iter))) {
10452 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10455 if (mono_field_is_deleted (field))
10457 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10458 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10459 NULL, NULL, &info->fields [j].mspec);
10461 info->fields [j].field = field;
10463 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10464 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10465 /* This field is a hack inserted by MCS to empty structures */
10470 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10471 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10472 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10473 &align, TRUE, klass->unicode);
10474 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10475 min_align = MAX (align, min_align);
10476 info->fields [j].offset = info->native_size;
10477 info->fields [j].offset += align - 1;
10478 info->fields [j].offset &= ~(align - 1);
10479 info->native_size = info->fields [j].offset + size;
10481 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10482 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10483 &align, TRUE, klass->unicode);
10484 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10485 min_align = MAX (align, min_align);
10486 info->fields [j].offset = field->offset - sizeof (MonoObject);
10487 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10493 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10494 info->native_size = MAX (native_size, info->native_size);
10497 if (info->native_size & (min_align - 1)) {
10498 info->native_size += min_align - 1;
10499 info->native_size &= ~(min_align - 1);
10502 info->min_align = min_align;
10504 /* Update the class's blittable info, if the layouts don't match */
10505 if (info->native_size != mono_class_value_size (klass, NULL))
10506 klass->blittable = FALSE;
10508 /* If this is an array type, ensure that we have element info */
10509 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10510 mono_marshal_load_type_info (klass->element_class);
10513 loads_list = TlsGetValue (load_type_info_tls_id);
10514 loads_list = g_slist_remove (loads_list, klass);
10515 TlsSetValue (load_type_info_tls_id, loads_list);
10517 /*We do double-checking locking on marshal_info */
10518 mono_memory_barrier ();
10520 klass->marshal_info = info;
10522 mono_loader_unlock ();
10524 return klass->marshal_info;
10528 * mono_class_native_size:
10531 * Returns: the native size of an object instance (when marshaled
10532 * to unmanaged code)
10535 mono_class_native_size (MonoClass *klass, guint32 *align)
10537 if (!klass->marshal_info) {
10538 if (mono_marshal_is_loading_type_info (klass)) {
10543 mono_marshal_load_type_info (klass);
10548 *align = klass->marshal_info->min_align;
10550 return klass->marshal_info->native_size;
10553 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10554 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10555 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10556 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10559 * mono_type_native_stack_size:
10560 * @t: the type to return the size it uses on the stack
10562 * Returns: the number of bytes required to hold an instance of this
10563 * type on the native stack
10566 mono_type_native_stack_size (MonoType *t, guint32 *align)
10570 g_assert (t != NULL);
10576 *align = sizeof (gpointer);
10577 return sizeof (gpointer);
10581 case MONO_TYPE_BOOLEAN:
10582 case MONO_TYPE_CHAR:
10593 case MONO_TYPE_STRING:
10594 case MONO_TYPE_OBJECT:
10595 case MONO_TYPE_CLASS:
10596 case MONO_TYPE_SZARRAY:
10597 case MONO_TYPE_PTR:
10598 case MONO_TYPE_FNPTR:
10599 case MONO_TYPE_ARRAY:
10600 *align = sizeof (gpointer);
10601 return sizeof (gpointer);
10606 *align = ALIGNMENT (gdouble);
10610 *align = ALIGNMENT (glong);
10612 case MONO_TYPE_GENERICINST:
10613 if (!mono_type_generic_inst_is_valuetype (t)) {
10614 *align = sizeof (gpointer);
10615 return sizeof (gpointer);
10618 case MONO_TYPE_TYPEDBYREF:
10619 case MONO_TYPE_VALUETYPE: {
10621 MonoClass *klass = mono_class_from_mono_type (t);
10623 if (klass->enumtype)
10624 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10626 size = mono_class_native_size (klass, align);
10627 *align = *align + 3;
10637 g_error ("type 0x%02x unknown", t->type);
10643 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10644 gboolean as_field, gboolean unicode)
10646 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10649 switch (native_type) {
10650 case MONO_NATIVE_BOOLEAN:
10653 case MONO_NATIVE_I1:
10654 case MONO_NATIVE_U1:
10657 case MONO_NATIVE_I2:
10658 case MONO_NATIVE_U2:
10659 case MONO_NATIVE_VARIANTBOOL:
10662 case MONO_NATIVE_I4:
10663 case MONO_NATIVE_U4:
10664 case MONO_NATIVE_ERROR:
10667 case MONO_NATIVE_I8:
10668 case MONO_NATIVE_U8:
10669 *align = ALIGNMENT(guint64);
10671 case MONO_NATIVE_R4:
10674 case MONO_NATIVE_R8:
10675 *align = ALIGNMENT(double);
10677 case MONO_NATIVE_INT:
10678 case MONO_NATIVE_UINT:
10679 case MONO_NATIVE_LPSTR:
10680 case MONO_NATIVE_LPWSTR:
10681 case MONO_NATIVE_LPTSTR:
10682 case MONO_NATIVE_BSTR:
10683 case MONO_NATIVE_ANSIBSTR:
10684 case MONO_NATIVE_TBSTR:
10685 case MONO_NATIVE_LPARRAY:
10686 case MONO_NATIVE_SAFEARRAY:
10687 case MONO_NATIVE_IUNKNOWN:
10688 case MONO_NATIVE_IDISPATCH:
10689 case MONO_NATIVE_INTERFACE:
10690 case MONO_NATIVE_ASANY:
10691 case MONO_NATIVE_FUNC:
10692 case MONO_NATIVE_LPSTRUCT:
10693 *align = ALIGNMENT(gpointer);
10694 return sizeof (gpointer);
10695 case MONO_NATIVE_STRUCT:
10696 klass = mono_class_from_mono_type (type);
10697 if (klass == mono_defaults.object_class &&
10698 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10702 return mono_class_native_size (klass, align);
10703 case MONO_NATIVE_BYVALTSTR: {
10704 int esize = unicode ? 2: 1;
10707 return mspec->data.array_data.num_elem * esize;
10709 case MONO_NATIVE_BYVALARRAY: {
10710 // FIXME: Have to consider ArraySubType
10712 klass = mono_class_from_mono_type (type);
10713 if (klass->element_class == mono_defaults.char_class) {
10714 esize = unicode ? 2 : 1;
10717 esize = mono_class_native_size (klass->element_class, align);
10720 return mspec->data.array_data.num_elem * esize;
10722 case MONO_NATIVE_CUSTOM:
10723 *align = sizeof (gpointer);
10724 return sizeof (gpointer);
10726 case MONO_NATIVE_CURRENCY:
10727 case MONO_NATIVE_VBBYREFSTR:
10729 g_error ("native type %02x not implemented", native_type);
10732 g_assert_not_reached ();
10737 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10745 t = &o->vtable->klass->byval_arg;
10749 case MONO_TYPE_PTR:
10752 case MONO_TYPE_BOOLEAN:
10755 case MONO_TYPE_CHAR:
10760 return mono_object_unbox (o);
10762 case MONO_TYPE_STRING:
10763 switch (string_encoding) {
10764 case MONO_NATIVE_LPWSTR:
10765 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10767 case MONO_NATIVE_LPSTR:
10768 return mono_string_to_lpstr ((MonoString*)o);
10771 g_warning ("marshaling conversion %d not implemented", string_encoding);
10772 g_assert_not_reached ();
10775 case MONO_TYPE_CLASS:
10776 case MONO_TYPE_VALUETYPE: {
10777 MonoMethod *method;
10780 MonoBoolean delete_old = FALSE;
10782 klass = t->data.klass;
10784 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10787 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10788 klass->blittable || klass->enumtype))
10789 return mono_object_unbox (o);
10791 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10793 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10794 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10798 pa [2] = &delete_old;
10800 mono_runtime_invoke (method, NULL, pa, NULL);
10807 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10813 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10821 t = &o->vtable->klass->byval_arg;
10823 case MONO_TYPE_STRING:
10824 switch (string_encoding) {
10825 case MONO_NATIVE_LPWSTR:
10826 case MONO_NATIVE_LPSTR:
10827 mono_marshal_free (ptr);
10830 g_warning ("marshaling conversion %d not implemented", string_encoding);
10831 g_assert_not_reached ();
10834 case MONO_TYPE_CLASS:
10835 case MONO_TYPE_VALUETYPE: {
10836 klass = t->data.klass;
10838 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10839 klass->blittable || klass->enumtype))
10842 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10843 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10849 mono_runtime_invoke (method, NULL, pa, NULL);
10852 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10853 mono_struct_delete_old (klass, ptr);
10856 mono_marshal_free (ptr);
10865 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10867 MonoMethodSignature *sig, *csig;
10868 MonoMethodBuilder *mb;
10872 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10873 mb->method->slot = -1;
10875 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10876 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10878 sig = mono_method_signature (method);
10879 csig = signature_dup (method->klass->image, sig);
10880 csig->generic_param_count = 0;
10882 mono_mb_emit_ldarg (mb, 0);
10883 for (i = 0; i < csig->param_count; i++)
10884 mono_mb_emit_ldarg (mb, i + 1);
10885 mono_mb_emit_managed_call (mb, method, NULL);
10886 mono_mb_emit_byte (mb, CEE_RET);
10888 /* We can corlib internal methods */
10889 mb->skip_visibility = TRUE;
10891 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10899 * The mono_win32_compat_* functions are implementations of inline
10900 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10901 * although not exported by kernel32.
10903 * We map the appropiate kernel32 entries to these functions using
10904 * dllmaps declared in the global etc/mono/config.
10908 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10910 if (!dest || !source)
10913 memcpy (dest, source, length);
10917 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10919 memset (dest, fill, length);
10923 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10925 if (!dest || !source)
10928 memmove (dest, source, length);
10932 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10934 memset (dest, 0, length);
10938 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10943 for (i = 0; i < len; ++i)
10947 g_assert (i < len);
10950 while (byte && !(byte & 1))
10952 g_assert (byte == 1);
10955 *bitmask = buf [i];
10959 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10961 MonoMethodBuilder *mb;
10962 MonoMethodSignature *sig, *csig;
10963 MonoExceptionClause *clause;
10968 int i, param_count, sig_size, pos_leave;
10972 klass = method->klass;
10973 image = method->klass->image;
10974 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10976 if ((res = mono_marshal_find_in_cache (cache, method)))
10979 sig = mono_method_signature (method);
10980 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10982 /* add "this" and exception param */
10983 param_count = sig->param_count + sig->hasthis + 1;
10985 /* dup & extend signature */
10986 csig = mono_metadata_signature_alloc (image, param_count);
10987 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10988 memcpy (csig, sig, sig_size);
10989 csig->param_count = param_count;
10992 csig->call_convention = MONO_CALL_DEFAULT;
10994 if (sig->hasthis) {
10996 csig->params [0] = &klass->byval_arg;
10997 /* move params up by one */
10998 for (i = 0; i < sig->param_count; i++)
10999 csig->params [i + 1] = sig->params [i];
11002 /* setup exception param as byref+[out] */
11003 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11004 &mono_defaults.exception_class->byval_arg);
11005 csig->params [param_count - 1]->byref = 1;
11006 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11008 /* convert struct return to object */
11009 if (MONO_TYPE_ISSTRUCT (sig->ret))
11010 csig->ret = &mono_defaults.object_class->byval_arg;
11012 /* local 0 (temp for exception object) */
11013 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11015 /* local 1 (temp for result) */
11016 if (!MONO_TYPE_IS_VOID (sig->ret))
11017 mono_mb_add_local (mb, sig->ret);
11019 /* clear exception arg */
11020 mono_mb_emit_ldarg (mb, param_count - 1);
11021 mono_mb_emit_byte (mb, CEE_LDNULL);
11022 mono_mb_emit_byte (mb, CEE_STIND_REF);
11025 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11026 clause->try_offset = mono_mb_get_label (mb);
11028 /* push method's args */
11029 for (i = 0; i < param_count - 1; i++) {
11033 mono_mb_emit_ldarg (mb, i);
11035 /* get the byval type of the param */
11036 klass = mono_class_from_mono_type (csig->params [i]);
11037 type = &klass->byval_arg;
11039 /* unbox struct args */
11040 if (MONO_TYPE_ISSTRUCT (type)) {
11041 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11043 /* byref args & and the "this" arg must remain a ptr.
11044 Otherwise make a copy of the value type */
11045 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11046 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11048 csig->params [i] = &mono_defaults.object_class->byval_arg;
11053 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11054 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11056 mono_mb_emit_op (mb, CEE_CALL, method);
11058 /* save result at local 1 */
11059 if (!MONO_TYPE_IS_VOID (sig->ret))
11060 mono_mb_emit_stloc (mb, 1);
11062 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11065 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11066 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11067 clause->data.catch_class = mono_defaults.object_class;
11069 clause->handler_offset = mono_mb_get_label (mb);
11071 /* store exception at local 0 */
11072 mono_mb_emit_stloc (mb, 0);
11073 mono_mb_emit_ldarg (mb, param_count - 1);
11074 mono_mb_emit_ldloc (mb, 0);
11075 mono_mb_emit_byte (mb, CEE_STIND_REF);
11076 mono_mb_emit_branch (mb, CEE_LEAVE);
11078 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11080 mono_mb_set_clauses (mb, 1, clause);
11082 mono_mb_patch_branch (mb, pos_leave);
11085 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11086 mono_mb_emit_ldloc (mb, 1);
11088 /* box the return value */
11089 if (MONO_TYPE_ISSTRUCT (sig->ret))
11090 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11093 mono_mb_emit_byte (mb, CEE_RET);
11095 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11102 * mono_marshal_free_dynamic_wrappers:
11104 * Free wrappers of the dynamic method METHOD.
11107 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11109 g_assert (method->dynamic);
11111 /* This could be called during shutdown */
11112 if (marshal_mutex_initialized)
11113 mono_marshal_lock ();
11115 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11116 * they could be shared with other methods ?
11118 if (method->klass->image->runtime_invoke_direct_cache)
11119 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11120 if (marshal_mutex_initialized)
11121 mono_marshal_unlock ();
11125 * mono_marshal_free_inflated_wrappers:
11127 * Free wrappers of the inflated method METHOD.
11131 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11133 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11134 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11136 return mono_metadata_signature_equal (pair->sig, sig);
11140 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11142 MonoMethodSignature *sig = method->signature;
11144 g_assert (method->is_inflated);
11146 /* Ignore calls occuring late during cleanup. */
11147 if (!marshal_mutex_initialized)
11150 mono_marshal_lock ();
11152 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11153 * they could be shared with other methods ?
11157 * indexed by MonoMethodSignature
11159 /* FIXME: This could remove unrelated wrappers as well */
11160 if (sig && method->klass->image->delegate_begin_invoke_cache)
11161 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11162 if (sig && method->klass->image->delegate_end_invoke_cache)
11163 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11164 if (sig && method->klass->image->delegate_invoke_cache)
11165 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11166 if (sig && method->klass->image->runtime_invoke_cache)
11167 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11170 * indexed by SignatureMethodPair
11172 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11173 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11174 signature_method_pair_matches_signature, (gpointer)sig);
11177 * indexed by MonoMethod pointers
11179 if (method->klass->image->runtime_invoke_direct_cache)
11180 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11181 if (method->klass->image->managed_wrapper_cache)
11182 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11183 if (method->klass->image->native_wrapper_cache)
11184 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11185 if (method->klass->image->remoting_invoke_cache)
11186 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11187 if (method->klass->image->synchronized_cache)
11188 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11189 if (method->klass->image->unbox_wrapper_cache)
11190 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11191 if (method->klass->image->cominterop_invoke_cache)
11192 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11193 if (method->klass->image->cominterop_wrapper_cache)
11194 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11195 if (method->klass->image->thunk_invoke_cache)
11196 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11198 mono_marshal_unlock ();