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)
2426 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2429 res = mono_method_get_wrapper_data (wrapper, 1);
2436 * mono_marshal_get_wrapper_info:
2438 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2441 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2443 g_assert (wrapper->wrapper_type);
2445 return mono_method_get_wrapper_data (wrapper, 1);
2449 * mono_marshal_set_wrapper_info:
2451 * Store an arbitrary pointer inside the wrapper which is retrievable by
2452 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2453 * wrapper (method->wrapper_type).
2456 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2460 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2463 datav = ((MonoMethodWrapper *)method)->method_data;
2468 * get_wrapper_target_class:
2470 * Return the class where a wrapper method should be placed.
2473 get_wrapper_target_class (MonoImage *image)
2479 * - can't put all wrappers into an mscorlib class, because they reference
2480 * metadata (signature) so they should be put into the same image as the
2481 * method they wrap, so they are unloaded together.
2482 * - putting them into a class with a type initalizer could cause the
2483 * initializer to be executed which can be a problem if the wrappers are
2485 * - putting them into an inflated class can cause problems if the the
2486 * class is deleted because it references an image which is unloaded.
2487 * To avoid these problems, we put the wrappers into the <Module> class of
2491 klass = ((MonoDynamicImage*)image)->wrappers_type;
2493 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2500 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2502 MonoMethodSignature *sig;
2503 MonoMethodBuilder *mb;
2509 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2510 !strcmp (method->name, "BeginInvoke"));
2512 sig = mono_signature_no_pinvoke (method);
2514 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2515 (GHashFunc)mono_signature_hash,
2516 (GCompareFunc)mono_metadata_signature_equal);
2517 if ((res = mono_marshal_find_in_cache (cache, sig)))
2520 g_assert (sig->hasthis);
2522 name = mono_signature_to_name (sig, "begin_invoke");
2523 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2526 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2528 mono_mb_emit_ldarg (mb, 0);
2529 mono_mb_emit_ldloc (mb, params_var);
2530 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2531 mono_mb_emit_byte (mb, CEE_RET);
2533 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2539 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2541 MonoDomain *domain = mono_domain_get ();
2542 MonoAsyncResult *ares;
2543 MonoMethod *method = NULL;
2544 MonoMethodSignature *sig;
2545 MonoMethodMessage *msg;
2546 MonoObject *res, *exc;
2547 MonoArray *out_args;
2550 g_assert (delegate);
2552 if (!delegate->method_info) {
2553 g_assert (delegate->method);
2554 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2557 if (!delegate->method_info || !delegate->method_info->method)
2558 g_assert_not_reached ();
2560 klass = delegate->object.vtable->klass;
2562 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2563 g_assert (method != NULL);
2565 sig = mono_signature_no_pinvoke (method);
2567 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2569 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2571 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2575 if (ares->async_delegate != (MonoObject*)delegate) {
2576 mono_raise_exception (mono_get_exception_invalid_operation (
2577 "The IAsyncResult object provided does not match this delegate."));
2581 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2582 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2583 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2584 mono_message_init (domain, msg, delegate->method_info, NULL);
2585 msg->call_type = CallType_EndInvoke;
2586 MONO_OBJECT_SETREF (msg, async_result, ares);
2587 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2589 res = mono_thread_pool_finish (ares, &out_args, &exc);
2593 if (((MonoException*)exc)->stack_trace) {
2594 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2596 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2598 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2601 mono_raise_exception ((MonoException*)exc);
2604 mono_method_return_message_restore (method, params, out_args);
2609 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2611 MonoType *t = mono_type_get_underlying_type (return_type);
2613 if (return_type->byref)
2614 return_type = &mono_defaults.int_class->byval_arg;
2617 case MONO_TYPE_VOID:
2618 g_assert_not_reached ();
2621 case MONO_TYPE_STRING:
2622 case MONO_TYPE_CLASS:
2623 case MONO_TYPE_OBJECT:
2624 case MONO_TYPE_ARRAY:
2625 case MONO_TYPE_SZARRAY:
2629 case MONO_TYPE_BOOLEAN:
2632 case MONO_TYPE_CHAR:
2642 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2643 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2645 case MONO_TYPE_GENERICINST:
2646 if (!mono_type_generic_inst_is_valuetype (t))
2649 case MONO_TYPE_VALUETYPE: {
2650 MonoClass *klass = mono_class_from_mono_type (return_type);
2651 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2652 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2656 g_warning ("type 0x%x not handled", return_type->type);
2657 g_assert_not_reached ();
2660 mono_mb_emit_byte (mb, CEE_RET);
2664 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2666 MonoMethodSignature *sig;
2667 MonoMethodBuilder *mb;
2673 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2674 !strcmp (method->name, "EndInvoke"));
2676 sig = mono_signature_no_pinvoke (method);
2678 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2679 (GHashFunc)mono_signature_hash,
2680 (GCompareFunc)mono_metadata_signature_equal);
2681 if ((res = mono_marshal_find_in_cache (cache, sig)))
2684 g_assert (sig->hasthis);
2686 name = mono_signature_to_name (sig, "end_invoke");
2687 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2690 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2692 mono_mb_emit_ldarg (mb, 0);
2693 mono_mb_emit_ldloc (mb, params_var);
2694 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2696 if (sig->ret->type == MONO_TYPE_VOID) {
2697 mono_mb_emit_byte (mb, CEE_POP);
2698 mono_mb_emit_byte (mb, CEE_RET);
2700 mono_mb_emit_restore_result (mb, sig->ret);
2702 res = mono_mb_create_and_cache (cache, sig,
2703 mb, sig, sig->param_count + 16);
2710 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2712 MonoMethodMessage *msg;
2713 MonoTransparentProxy *this;
2714 MonoObject *res, *exc;
2715 MonoArray *out_args;
2717 this = *((MonoTransparentProxy **)params [0]);
2720 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2722 /* skip the this pointer */
2725 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2728 MonoMethodSignature *sig = mono_method_signature (method);
2729 int count = sig->param_count;
2730 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2732 for (i=0; i<count; i++) {
2733 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2734 if (class->valuetype) {
2735 if (sig->params [i]->byref) {
2736 mparams[i] = *((gpointer *)params [i]);
2738 /* runtime_invoke expects a boxed instance */
2739 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2740 mparams[i] = mono_nullable_box (params [i], class);
2742 mparams[i] = params [i];
2745 mparams[i] = *((gpointer**)params [i]);
2749 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2752 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2754 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2757 mono_raise_exception ((MonoException *)exc);
2759 mono_method_return_message_restore (method, params, out_args);
2765 mono_marshal_get_remoting_invoke (MonoMethod *method)
2767 MonoMethodSignature *sig;
2768 MonoMethodBuilder *mb;
2774 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2777 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2778 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2779 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2780 g_assert (vtable); /*FIXME do proper error handling*/
2782 if (!vtable->remote) {
2784 return mono_cominterop_get_invoke (method);
2786 g_assert_not_reached ();
2791 sig = mono_signature_no_pinvoke (method);
2793 /* we cant remote methods without this pointer */
2797 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2800 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2801 mb->method->save_lmf = 1;
2803 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2805 mono_mb_emit_ptr (mb, method);
2806 mono_mb_emit_ldloc (mb, params_var);
2807 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2808 emit_thread_interrupt_checkpoint (mb);
2810 if (sig->ret->type == MONO_TYPE_VOID) {
2811 mono_mb_emit_byte (mb, CEE_POP);
2812 mono_mb_emit_byte (mb, CEE_RET);
2814 mono_mb_emit_restore_result (mb, sig->ret);
2817 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2823 /* mono_get_xdomain_marshal_type()
2824 * Returns the kind of marshalling that a type needs for cross domain calls.
2826 static MonoXDomainMarshalType
2827 mono_get_xdomain_marshal_type (MonoType *t)
2830 case MONO_TYPE_VOID:
2831 g_assert_not_reached ();
2835 case MONO_TYPE_BOOLEAN:
2838 case MONO_TYPE_CHAR:
2845 return MONO_MARSHAL_NONE;
2846 case MONO_TYPE_STRING:
2847 return MONO_MARSHAL_COPY;
2848 case MONO_TYPE_ARRAY:
2849 case MONO_TYPE_SZARRAY: {
2850 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2851 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2852 return MONO_MARSHAL_COPY;
2857 return MONO_MARSHAL_SERIALIZE;
2861 /* mono_marshal_xdomain_copy_value
2862 * Makes a copy of "val" suitable for the current domain.
2865 mono_marshal_xdomain_copy_value (MonoObject *val)
2868 if (val == NULL) return NULL;
2870 domain = mono_domain_get ();
2872 switch (mono_object_class (val)->byval_arg.type) {
2873 case MONO_TYPE_VOID:
2874 g_assert_not_reached ();
2878 case MONO_TYPE_BOOLEAN:
2881 case MONO_TYPE_CHAR:
2887 case MONO_TYPE_R8: {
2888 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2890 case MONO_TYPE_STRING: {
2891 MonoString *str = (MonoString *) val;
2892 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2894 case MONO_TYPE_ARRAY:
2895 case MONO_TYPE_SZARRAY: {
2897 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2898 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2899 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2900 if (mt == MONO_MARSHAL_COPY) {
2901 int i, len = mono_array_length (acopy);
2902 for (i = 0; i < len; i++) {
2903 MonoObject *item = mono_array_get (acopy, gpointer, i);
2904 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2907 return (MonoObject *) acopy;
2911 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2912 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2913 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2914 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2915 newsb->length = oldsb->length;
2916 newsb->max_capacity = (gint32)0x7fffffff;
2917 return (MonoObject *) newsb;
2922 /* mono_marshal_xdomain_copy_out_value()
2923 * Copies the contents of the src instance into the dst instance. src and dst
2924 * must have the same type, and if they are arrays, the same size.
2927 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2929 if (src == NULL || dst == NULL) return;
2931 g_assert (mono_object_class (src) == mono_object_class (dst));
2933 switch (mono_object_class (src)->byval_arg.type) {
2934 case MONO_TYPE_ARRAY:
2935 case MONO_TYPE_SZARRAY: {
2936 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2937 if (mt == MONO_MARSHAL_SERIALIZE) return;
2938 if (mt == MONO_MARSHAL_COPY) {
2939 int i, len = mono_array_length ((MonoArray *)dst);
2940 for (i = 0; i < len; i++) {
2941 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2942 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2945 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2951 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2952 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2953 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2955 MONO_OBJECT_SETREF (dst_sb, str, mono_string_new_utf16 (mono_object_domain (dst), mono_string_chars (src_sb->str), mono_string_length (src_sb->str)));
2956 dst_sb->cached_str = NULL;
2957 dst_sb->length = src_sb->length;
2962 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2964 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2965 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2969 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2971 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2974 /* mono_marshal_supports_fast_xdomain()
2975 * Returns TRUE if the method can use the fast xdomain wrapper.
2978 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2980 return !method->klass->contextbound &&
2981 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2985 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2987 MonoDomain *current_domain = mono_domain_get ();
2988 MonoDomain *domain = mono_domain_get_by_id (id);
2990 if (!domain || !mono_domain_set (domain, FALSE))
2991 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2994 mono_thread_push_appdomain_ref (domain);
2996 mono_thread_pop_appdomain_ref ();
2998 return current_domain->domain_id;
3002 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3004 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3007 /* mono_marshal_emit_load_domain_method ()
3008 * Loads into the stack a pointer to the code of the provided method for
3009 * the current domain.
3012 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3014 /* We need a pointer to the method for the running domain (not the domain
3015 * that compiles the method).
3017 mono_mb_emit_ptr (mb, method);
3018 mono_mb_emit_icall (mb, mono_compile_method);
3021 /* mono_marshal_check_domain_image ()
3022 * Returns TRUE if the image is loaded in the specified
3023 * application domain.
3026 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3031 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3035 mono_domain_assemblies_lock (domain);
3036 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3038 if (ass->image == image)
3041 mono_domain_assemblies_unlock (domain);
3046 /* mono_marshal_get_xappdomain_dispatch ()
3047 * Generates a method that dispatches a method call from another domain into
3048 * the current domain.
3051 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3053 MonoMethodSignature *sig, *csig;
3054 MonoMethodBuilder *mb;
3056 int i, j, param_index, copy_locals_base;
3057 MonoClass *ret_class = NULL;
3058 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3059 MonoExceptionClause *main_clause;
3061 gboolean copy_return;
3063 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3066 sig = mono_method_signature (method);
3067 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3070 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3071 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3072 csig->params [j++] = &byte_array_class->this_arg;
3073 csig->params [j++] = &byte_array_class->this_arg;
3074 for (i = 0; i < sig->param_count; i++) {
3075 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3076 csig->params [j++] = sig->params [i];
3079 csig->ret = sig->ret;
3081 csig->ret = &mono_defaults.void_class->byval_arg;
3083 csig->hasthis = FALSE;
3085 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3086 mb->method->save_lmf = 1;
3090 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3091 if (complex_count > 0)
3092 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3093 if (sig->ret->type != MONO_TYPE_VOID) {
3094 loc_return = mono_mb_add_local (mb, sig->ret);
3095 ret_class = mono_class_from_mono_type (sig->ret);
3100 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3101 main_clause->try_offset = mono_mb_get_label (mb);
3103 /* Clean the call context */
3105 mono_mb_emit_byte (mb, CEE_LDNULL);
3106 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3107 mono_mb_emit_byte (mb, CEE_POP);
3109 /* Deserialize call data */
3111 mono_mb_emit_ldarg (mb, 1);
3112 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3113 mono_mb_emit_byte (mb, CEE_DUP);
3114 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3116 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3117 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3119 if (complex_count > 0)
3120 mono_mb_emit_stloc (mb, loc_array);
3122 mono_mb_emit_byte (mb, CEE_POP);
3124 mono_mb_patch_short_branch (mb, pos);
3126 /* Get the target object */
3128 mono_mb_emit_ldarg (mb, 0);
3129 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3131 /* Load the arguments */
3133 copy_locals_base = mb->locals;
3134 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3136 for (i = 0; i < sig->param_count; i++) {
3137 MonoType *pt = sig->params [i];
3138 MonoClass *pclass = mono_class_from_mono_type (pt);
3139 switch (marshal_types [i]) {
3140 case MONO_MARSHAL_SERIALIZE: {
3141 /* take the value from the serialized array */
3142 mono_mb_emit_ldloc (mb, loc_array);
3143 mono_mb_emit_icon (mb, j++);
3145 if (pclass->valuetype) {
3146 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3147 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3149 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3152 if (pclass->valuetype) {
3153 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3154 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3155 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3157 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3158 if (pclass != mono_defaults.object_class) {
3159 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3165 case MONO_MARSHAL_COPY_OUT: {
3166 /* Keep a local copy of the value since we need to copy it back after the call */
3167 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3168 mono_mb_emit_ldarg (mb, param_index++);
3169 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3170 mono_mb_emit_byte (mb, CEE_DUP);
3171 mono_mb_emit_stloc (mb, copy_local);
3174 case MONO_MARSHAL_COPY: {
3175 mono_mb_emit_ldarg (mb, param_index);
3177 mono_mb_emit_byte (mb, CEE_DUP);
3178 mono_mb_emit_byte (mb, CEE_DUP);
3179 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3180 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3181 mono_mb_emit_byte (mb, CEE_STIND_REF);
3183 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3188 case MONO_MARSHAL_NONE:
3189 mono_mb_emit_ldarg (mb, param_index++);
3194 /* Make the call to the real object */
3196 emit_thread_force_interrupt_checkpoint (mb);
3198 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3200 if (sig->ret->type != MONO_TYPE_VOID)
3201 mono_mb_emit_stloc (mb, loc_return);
3203 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3207 for (i = 0; i < sig->param_count; i++) {
3208 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3209 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3210 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3211 mono_mb_emit_ldarg (mb, param_index);
3212 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3217 /* Serialize the return values */
3219 if (complex_out_count > 0) {
3220 /* Reset parameters in the array that don't need to be serialized back */
3222 for (i = 0; i < sig->param_count; i++) {
3223 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3224 if (!sig->params [i]->byref) {
3225 mono_mb_emit_ldloc (mb, loc_array);
3226 mono_mb_emit_icon (mb, j);
3227 mono_mb_emit_byte (mb, CEE_LDNULL);
3228 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3233 /* Add the return value to the array */
3235 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3236 mono_mb_emit_ldloc (mb, loc_array);
3237 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3238 mono_mb_emit_ldloc (mb, loc_return);
3240 g_assert (ret_class); /*FIXME properly fail here*/
3241 if (ret_class->valuetype) {
3242 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3244 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3249 mono_mb_emit_ldarg (mb, 1);
3250 mono_mb_emit_ldloc (mb, loc_array);
3251 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3252 mono_mb_emit_byte (mb, CEE_STIND_REF);
3253 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3254 mono_mb_emit_ldarg (mb, 1);
3255 mono_mb_emit_ldloc (mb, loc_return);
3256 if (ret_class->valuetype) {
3257 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3259 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3260 mono_mb_emit_byte (mb, CEE_STIND_REF);
3262 mono_mb_emit_ldarg (mb, 1);
3263 mono_mb_emit_byte (mb, CEE_LDNULL);
3264 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3265 mono_mb_emit_byte (mb, CEE_STIND_REF);
3268 mono_mb_emit_ldarg (mb, 2);
3269 mono_mb_emit_byte (mb, CEE_LDNULL);
3270 mono_mb_emit_byte (mb, CEE_STIND_REF);
3271 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3273 /* Main exception catch */
3274 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3275 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3276 main_clause->data.catch_class = mono_defaults.object_class;
3279 main_clause->handler_offset = mono_mb_get_label (mb);
3280 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3281 mono_mb_emit_stloc (mb, loc_serialized_exc);
3282 mono_mb_emit_ldarg (mb, 2);
3283 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3284 mono_mb_emit_byte (mb, CEE_STIND_REF);
3285 mono_mb_emit_branch (mb, CEE_LEAVE);
3286 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3289 mono_mb_patch_branch (mb, pos_leave);
3292 mono_mb_emit_ldloc (mb, loc_return);
3294 mono_mb_emit_byte (mb, CEE_RET);
3296 mono_mb_set_clauses (mb, 1, main_clause);
3298 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3304 /* mono_marshal_get_xappdomain_invoke ()
3305 * Generates a fast remoting wrapper for cross app domain calls.
3308 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3310 MonoMethodSignature *sig;
3311 MonoMethodBuilder *mb;
3313 int i, j, complex_count, complex_out_count, copy_locals_base;
3315 MonoClass *ret_class = NULL;
3316 MonoMethod *xdomain_method;
3317 int ret_marshal_type = MONO_MARSHAL_NONE;
3318 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3319 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3320 int pos, pos_dispatch, pos_noex;
3321 gboolean copy_return = FALSE;
3325 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3328 /* we cant remote methods without this pointer */
3329 if (!mono_method_signature (method)->hasthis)
3332 if (!mono_marshal_supports_fast_xdomain (method))
3333 return mono_marshal_get_remoting_invoke (method);
3335 mono_remoting_marshal_init ();
3337 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3340 sig = mono_signature_no_pinvoke (method);
3342 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3343 mb->method->save_lmf = 1;
3345 /* Count the number of parameters that need to be serialized */
3347 marshal_types = alloca (sizeof (int) * sig->param_count);
3348 complex_count = complex_out_count = 0;
3349 for (i = 0; i < sig->param_count; i++) {
3350 MonoType *ptype = sig->params[i];
3351 int mt = mono_get_xdomain_marshal_type (ptype);
3353 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3354 * the copy will be made by reusing the original object instance
3356 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3357 mt = MONO_MARSHAL_COPY_OUT;
3358 else if (mt == MONO_MARSHAL_SERIALIZE) {
3360 if (ptype->byref) complex_out_count++;
3362 marshal_types [i] = mt;
3365 if (sig->ret->type != MONO_TYPE_VOID) {
3366 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3367 ret_class = mono_class_from_mono_type (sig->ret);
3368 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3373 if (complex_count > 0)
3374 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3375 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3376 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3378 loc_return = mono_mb_add_local (mb, sig->ret);
3379 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3380 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3381 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3382 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3384 /* Save thread domain data */
3386 mono_mb_emit_icall (mb, mono_context_get);
3387 mono_mb_emit_byte (mb, CEE_DUP);
3388 mono_mb_emit_stloc (mb, loc_context);
3390 /* If the thread is not running in the default context, it needs to go
3391 * through the whole remoting sink, since the context is going to change
3393 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3394 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3396 /* Another case in which the fast path can't be used: when the target domain
3397 * has a different image for the same assembly.
3400 /* Get the target domain id */
3402 mono_mb_emit_ldarg (mb, 0);
3403 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3404 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3405 mono_mb_emit_byte (mb, CEE_DUP);
3406 mono_mb_emit_stloc (mb, loc_real_proxy);
3408 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3409 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3410 mono_mb_emit_stloc (mb, loc_domainid);
3412 /* Check if the target domain has the same image for the required assembly */
3414 mono_mb_emit_ldloc (mb, loc_domainid);
3415 mono_mb_emit_ptr (mb, method->klass->image);
3416 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3417 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3419 /* Use the whole remoting sink to dispatch this message */
3421 mono_mb_patch_short_branch (mb, pos);
3423 mono_mb_emit_ldarg (mb, 0);
3424 for (i = 0; i < sig->param_count; i++)
3425 mono_mb_emit_ldarg (mb, i + 1);
3427 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3428 mono_mb_emit_byte (mb, CEE_RET);
3429 mono_mb_patch_short_branch (mb, pos_dispatch);
3431 /* Create the array that will hold the parameters to be serialized */
3433 if (complex_count > 0) {
3434 mono_mb_emit_icon (mb, (ret_marshal_type == MONO_MARSHAL_SERIALIZE && complex_out_count > 0) ? complex_count + 1 : complex_count); /* +1 for the return type */
3435 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3438 for (i = 0; i < sig->param_count; i++) {
3440 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3441 pclass = mono_class_from_mono_type (sig->params[i]);
3442 mono_mb_emit_byte (mb, CEE_DUP);
3443 mono_mb_emit_icon (mb, j);
3444 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3445 if (sig->params[i]->byref) {
3446 if (pclass->valuetype)
3447 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3449 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3451 if (pclass->valuetype)
3452 mono_mb_emit_op (mb, CEE_BOX, pclass);
3453 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3456 mono_mb_emit_stloc (mb, loc_array);
3458 /* Serialize parameters */
3460 mono_mb_emit_ldloc (mb, loc_array);
3461 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3462 mono_mb_emit_stloc (mb, loc_serialized_data);
3464 mono_mb_emit_byte (mb, CEE_LDNULL);
3465 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3466 mono_mb_emit_stloc (mb, loc_serialized_data);
3471 mono_mb_emit_ldloc (mb, loc_domainid);
3472 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3473 mono_marshal_emit_switch_domain (mb);
3474 mono_mb_emit_stloc (mb, loc_old_domainid);
3476 /* Load the arguments */
3478 mono_mb_emit_ldloc (mb, loc_real_proxy);
3479 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3480 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3482 copy_locals_base = mb->locals;
3483 for (i = 0; i < sig->param_count; i++) {
3484 switch (marshal_types [i]) {
3485 case MONO_MARSHAL_SERIALIZE:
3487 case MONO_MARSHAL_COPY: {
3488 mono_mb_emit_ldarg (mb, i+1);
3489 if (sig->params [i]->byref) {
3490 /* make a local copy of the byref parameter. The real parameter
3491 * will be updated after the xdomain call
3493 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3494 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3495 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3496 mono_mb_emit_stloc (mb, copy_local);
3497 mono_mb_emit_ldloc_addr (mb, copy_local);
3501 case MONO_MARSHAL_COPY_OUT:
3502 case MONO_MARSHAL_NONE:
3503 mono_mb_emit_ldarg (mb, i+1);
3508 /* Make the call to the invoke wrapper in the target domain */
3510 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3511 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3512 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3515 mono_mb_emit_stloc (mb, loc_return);
3519 mono_mb_emit_ldloc (mb, loc_old_domainid);
3520 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3521 mono_marshal_emit_switch_domain (mb);
3522 mono_mb_emit_byte (mb, CEE_POP);
3524 /* Restore thread domain data */
3526 mono_mb_emit_ldloc (mb, loc_context);
3527 mono_mb_emit_icall (mb, mono_context_set);
3529 /* if (loc_serialized_exc != null) ... */
3531 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3532 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3534 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3535 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3536 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3537 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3538 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3539 mono_mb_emit_byte (mb, CEE_THROW);
3540 mono_mb_patch_short_branch (mb, pos_noex);
3542 /* copy back non-serialized output parameters */
3545 for (i = 0; i < sig->param_count; i++) {
3546 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3547 mono_mb_emit_ldarg (mb, i + 1);
3548 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3549 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3550 mono_mb_emit_byte (mb, CEE_STIND_REF);
3553 /* Deserialize out parameters */
3555 if (complex_out_count > 0) {
3556 mono_mb_emit_ldloc (mb, loc_serialized_data);
3557 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3558 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3559 mono_mb_emit_stloc (mb, loc_array);
3561 /* Copy back output parameters and return type */
3564 for (i = 0; i < sig->param_count; i++) {
3565 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3566 if (sig->params[i]->byref) {
3567 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3568 mono_mb_emit_ldarg (mb, i + 1);
3569 mono_mb_emit_ldloc (mb, loc_array);
3570 mono_mb_emit_icon (mb, j);
3571 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3572 if (pclass->valuetype) {
3573 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3574 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3575 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3577 if (pclass != mono_defaults.object_class)
3578 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3579 mono_mb_emit_byte (mb, CEE_STIND_REF);
3585 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3586 mono_mb_emit_ldloc (mb, loc_array);
3587 mono_mb_emit_icon (mb, complex_count);
3588 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3589 if (ret_class->valuetype) {
3590 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3591 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3594 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3595 mono_mb_emit_ldloc (mb, loc_serialized_data);
3596 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3597 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3598 if (ret_class->valuetype) {
3599 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3600 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3601 } else if (ret_class != mono_defaults.object_class) {
3602 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3605 mono_mb_emit_ldloc (mb, loc_serialized_data);
3606 mono_mb_emit_byte (mb, CEE_DUP);
3607 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3608 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3610 mono_mb_patch_short_branch (mb, pos);
3611 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3612 mono_mb_emit_byte (mb, CEE_POP);
3616 mono_mb_emit_ldloc (mb, loc_return);
3617 if (ret_marshal_type == MONO_MARSHAL_COPY)
3618 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3621 mono_mb_emit_byte (mb, CEE_RET);
3623 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3630 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3632 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3633 return mono_marshal_get_xappdomain_invoke (method);
3634 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3636 return mono_cominterop_get_invoke (method);
3638 g_assert_not_reached ();
3641 return mono_marshal_get_remoting_invoke (method);
3647 G_GNUC_UNUSED static gpointer
3648 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3650 if (rp->target_domain_id != -1)
3651 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3653 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3657 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3659 MonoMethodSignature *sig;
3660 MonoMethodBuilder *mb;
3661 MonoMethod *res, *native;
3662 int i, pos, pos_rem;
3666 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3669 /* we cant remote methods without this pointer */
3670 g_assert (mono_method_signature (method)->hasthis);
3672 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3675 sig = mono_signature_no_pinvoke (method);
3677 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3679 for (i = 0; i <= sig->param_count; i++)
3680 mono_mb_emit_ldarg (mb, i);
3682 mono_mb_emit_ldarg (mb, 0);
3683 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3685 if (mono_marshal_supports_fast_xdomain (method)) {
3686 mono_mb_emit_ldarg (mb, 0);
3687 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3689 /* wrapper for cross app domain calls */
3690 native = mono_marshal_get_xappdomain_invoke (method);
3691 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3692 mono_mb_emit_byte (mb, CEE_RET);
3694 mono_mb_patch_branch (mb, pos_rem);
3696 /* wrapper for normal remote calls */
3697 native = mono_marshal_get_remoting_invoke (method);
3698 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3699 mono_mb_emit_byte (mb, CEE_RET);
3702 mono_mb_patch_branch (mb, pos);
3703 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3704 mono_mb_emit_byte (mb, CEE_RET);
3706 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3714 MonoMethodSignature *sig;
3716 } SignatureMethodPair;
3719 signature_method_pair_hash (gconstpointer data)
3721 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3723 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3727 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3729 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3733 free_signature_method_pair (SignatureMethodPair *pair)
3739 * the returned method invokes all methods in a multicast delegate.
3742 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3744 MonoMethodSignature *sig, *static_sig;
3746 MonoMethodBuilder *mb;
3747 MonoMethod *res, *newm;
3749 SignatureMethodPair key;
3750 SignatureMethodPair *new_key;
3751 int local_prev, local_target;
3754 MonoMethod *target_method = NULL;
3755 MonoClass *target_class = NULL;
3756 gboolean callvirt = FALSE;
3759 * If the delegate target is null, and the target method is not static, a virtual
3760 * call is made to that method with the first delegate argument as this. This is
3761 * a non-documented .NET feature.
3763 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3765 target_method = del->method;
3766 if (target_method->is_inflated) {
3767 MonoType *target_type;
3769 g_assert (method->signature->hasthis);
3770 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3771 mono_method_get_context (method));
3772 target_class = mono_class_from_mono_type (target_type);
3774 target_class = del->method->klass;
3778 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3779 !strcmp (method->name, "Invoke"));
3781 sig = mono_signature_no_pinvoke (method);
3784 /* We need to cache the signature+method pair */
3785 mono_marshal_lock ();
3786 if (!method->klass->image->delegate_abstract_invoke_cache)
3787 method->klass->image->delegate_abstract_invoke_cache = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3788 cache = method->klass->image->delegate_abstract_invoke_cache;
3790 key.method = target_method;
3791 res = g_hash_table_lookup (cache, &key);
3792 mono_marshal_unlock ();
3796 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3797 (GHashFunc)mono_signature_hash,
3798 (GCompareFunc)mono_metadata_signature_equal);
3799 if ((res = mono_marshal_find_in_cache (cache, sig)))
3803 static_sig = signature_dup (method->klass->image, sig);
3804 static_sig->hasthis = 0;
3806 name = mono_signature_to_name (sig, "invoke");
3807 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3810 /* allocate local 0 (object) */
3811 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3812 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3814 g_assert (sig->hasthis);
3818 * prev.Invoke( args .. );
3819 * return this.<target>( args .. );
3822 /* this wrapper can be used in unmanaged-managed transitions */
3823 emit_thread_interrupt_checkpoint (mb);
3825 /* get this->prev */
3826 mono_mb_emit_ldarg (mb, 0);
3827 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3828 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3829 mono_mb_emit_stloc (mb, local_prev);
3830 mono_mb_emit_ldloc (mb, local_prev);
3832 /* if prev != null */
3833 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3837 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3838 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3840 mono_mb_emit_ldloc (mb, local_prev);
3841 for (i = 0; i < sig->param_count; i++)
3842 mono_mb_emit_ldarg (mb, i + 1);
3843 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3844 if (sig->ret->type != MONO_TYPE_VOID)
3845 mono_mb_emit_byte (mb, CEE_POP);
3847 /* continued or prev == null */
3848 mono_mb_patch_branch (mb, pos0);
3850 /* get this->target */
3851 mono_mb_emit_ldarg (mb, 0);
3852 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3853 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3854 mono_mb_emit_stloc (mb, local_target);
3856 /* if target != null */
3857 mono_mb_emit_ldloc (mb, local_target);
3858 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3860 /* then call this->method_ptr nonstatic */
3863 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3865 mono_mb_emit_ldloc (mb, local_target);
3866 for (i = 0; i < sig->param_count; ++i)
3867 mono_mb_emit_ldarg (mb, i + 1);
3868 mono_mb_emit_ldarg (mb, 0);
3869 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3870 mono_mb_emit_byte (mb, CEE_LDIND_I );
3871 mono_mb_emit_op (mb, CEE_CALLI, sig);
3873 mono_mb_emit_byte (mb, CEE_RET);
3876 /* else [target == null] call this->method_ptr static */
3877 mono_mb_patch_branch (mb, pos0);
3880 mono_mb_emit_ldarg (mb, 1);
3881 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3882 for (i = 1; i < sig->param_count; ++i)
3883 mono_mb_emit_ldarg (mb, i + 1);
3884 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3886 for (i = 0; i < sig->param_count; ++i)
3887 mono_mb_emit_ldarg (mb, i + 1);
3888 mono_mb_emit_ldarg (mb, 0);
3889 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3890 mono_mb_emit_byte (mb, CEE_LDIND_I );
3891 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3894 mono_mb_emit_byte (mb, CEE_RET);
3897 // From mono_mb_create_and_cache
3898 mb->skip_visibility = 1;
3899 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3900 /*We perform double checked locking, so must fence before publishing*/
3901 mono_memory_barrier ();
3902 mono_marshal_lock ();
3903 res = g_hash_table_lookup (cache, &key);
3906 new_key = g_new0 (SignatureMethodPair, 1);
3908 new_key->method = target_method;
3909 g_hash_table_insert (cache, new_key, res);
3910 mono_marshal_set_wrapper_info (res, new_key);
3911 mono_marshal_unlock ();
3913 mono_marshal_unlock ();
3914 mono_free_method (newm);
3917 mb->skip_visibility = 1;
3918 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3926 * signature_dup_add_this:
3928 * Make a copy of @sig, adding an explicit this argument.
3930 static MonoMethodSignature*
3931 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3933 MonoMethodSignature *res;
3936 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3937 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3938 res->param_count = sig->param_count + 1;
3939 res->hasthis = FALSE;
3940 for (i = sig->param_count - 1; i >= 0; i --)
3941 res->params [i + 1] = sig->params [i];
3942 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3948 MonoMethodSignature *ctor_sig;
3949 MonoMethodSignature *sig;
3952 /* protected by the marshal lock, contains CtorSigPair pointers */
3953 static GSList *strsig_list = NULL;
3955 static MonoMethodSignature *
3956 lookup_string_ctor_signature (MonoMethodSignature *sig)
3958 MonoMethodSignature *callsig;
3962 mono_marshal_lock ();
3964 for (item = strsig_list; item; item = item->next) {
3966 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3967 * because it is lock-free.
3969 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3974 mono_marshal_unlock ();
3978 static MonoMethodSignature *
3979 add_string_ctor_signature (MonoMethod *method)
3981 MonoMethodSignature *callsig;
3984 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3985 callsig->ret = &mono_defaults.string_class->byval_arg;
3986 cs = g_new (CtorSigPair, 1);
3988 cs->ctor_sig = mono_method_signature (method);
3990 mono_marshal_lock ();
3991 strsig_list = g_slist_prepend (strsig_list, cs);
3992 mono_marshal_unlock ();
3997 * mono_marshal_get_string_ctor_signature:
3999 * Return the modified signature used by string ctors (they return the newly created
4002 MonoMethodSignature*
4003 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4005 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4007 sig = add_string_ctor_signature (method);
4013 get_runtime_invoke_type (MonoType *t, gboolean ret)
4016 /* Can't share this with 'I' as that needs another indirection */
4019 if (MONO_TYPE_IS_REFERENCE (t))
4020 return &mono_defaults.object_class->byval_arg;
4023 /* The result needs to be boxed */
4029 return &mono_defaults.sbyte_class->byval_arg;
4031 return &mono_defaults.int16_class->byval_arg;
4033 return &mono_defaults.int32_class->byval_arg;
4035 return &mono_defaults.int64_class->byval_arg;
4036 case MONO_TYPE_BOOLEAN:
4037 return &mono_defaults.sbyte_class->byval_arg;
4038 case MONO_TYPE_CHAR:
4039 return &mono_defaults.int16_class->byval_arg;
4042 return &mono_defaults.int_class->byval_arg;
4043 case MONO_TYPE_VALUETYPE:
4044 if (t->data.klass->enumtype) {
4045 t = mono_class_enum_basetype (t->data.klass);
4055 * mono_marshal_get_runtime_invoke_sig:
4057 * Return a common signature used for sharing runtime invoke wrappers.
4059 static MonoMethodSignature*
4060 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4062 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4065 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4066 for (i = 0; i < res->param_count; ++i)
4067 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4073 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4075 /* Can't share wrappers which return a vtype since it needs to be boxed */
4076 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret))
4079 return mono_metadata_signature_equal (sig1, sig2);
4083 * generates IL code for the runtime invoke function
4084 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4086 * we also catch exceptions if exc != null
4087 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4088 * it means that the compiled code for METHOD does not have to be looked up
4089 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4090 * its METHOD argument.
4093 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4095 MonoMethodSignature *sig, *csig, *callsig;
4096 MonoExceptionClause *clause;
4097 MonoMethodBuilder *mb;
4098 GHashTable *cache = NULL;
4099 MonoClass *target_klass;
4100 MonoMethod *res = NULL;
4101 static MonoString *string_dummy = NULL;
4102 static MonoMethodSignature *cctor_signature = NULL;
4103 static MonoMethodSignature *finalize_signature = NULL;
4106 gboolean need_direct_wrapper = FALSE;
4107 int *tmp_nullable_locals;
4111 if (!cctor_signature) {
4112 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4113 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4115 if (!finalize_signature) {
4116 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4117 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4118 finalize_signature->hasthis = 1;
4122 need_direct_wrapper = TRUE;
4125 * Use a separate cache indexed by methods to speed things up and to avoid the
4126 * boundless mempool growth caused by the signature_dup stuff below.
4129 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4131 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4132 res = mono_marshal_find_in_cache (cache, method);
4136 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4137 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4139 * Array Get/Set/Address methods. The JIT implements them using inline code
4140 * so we need to create an invoke wrapper which calls the method directly.
4142 need_direct_wrapper = TRUE;
4145 if (method->string_ctor) {
4146 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4148 callsig = add_string_ctor_signature (method);
4149 /* Can't share this as we push a string as this */
4150 need_direct_wrapper = TRUE;
4152 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4154 * Valuetype methods receive a managed pointer as the this argument.
4155 * Create a new signature to reflect this.
4157 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4158 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4159 need_direct_wrapper = TRUE;
4161 if (method->dynamic)
4162 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4164 callsig = mono_method_signature (method);
4168 target_klass = get_wrapper_target_class (method->klass->image);
4170 /* Try to share wrappers for non-corlib methods with simple signatures */
4171 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4172 callsig = cctor_signature;
4173 target_klass = mono_defaults.object_class;
4174 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4175 callsig = finalize_signature;
4176 target_klass = mono_defaults.object_class;
4179 if (need_direct_wrapper) {
4180 /* Already searched at the start */
4182 MonoMethodSignature *tmp_sig;
4184 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4186 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4187 (GHashFunc)mono_signature_hash,
4188 (GCompareFunc)runtime_invoke_signature_equal);
4190 /* from mono_marshal_find_in_cache */
4191 mono_marshal_lock ();
4192 res = g_hash_table_lookup (cache, callsig);
4193 mono_marshal_unlock ();
4200 /* Make a copy of the signature from the image mempool */
4202 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4206 /* to make it work with our special string constructors */
4207 if (!string_dummy) {
4208 MONO_GC_REGISTER_ROOT (string_dummy);
4209 string_dummy = mono_string_new_wrapper ("dummy");
4212 sig = mono_method_signature (method);
4214 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4216 csig->ret = &mono_defaults.object_class->byval_arg;
4217 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4218 csig->params [0] = callsig->params [0];
4220 csig->params [0] = &mono_defaults.object_class->byval_arg;
4221 csig->params [1] = &mono_defaults.int_class->byval_arg;
4222 csig->params [2] = &mono_defaults.int_class->byval_arg;
4223 csig->params [3] = &mono_defaults.int_class->byval_arg;
4225 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4226 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4229 /* allocate local 0 (object) tmp */
4230 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4231 /* allocate local 1 (object) exc */
4232 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4234 emit_thread_force_interrupt_checkpoint (mb);
4237 g_assert (sig->hasthis);
4238 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4242 if (method->string_ctor) {
4243 mono_mb_emit_ptr (mb, string_dummy);
4245 mono_mb_emit_ldarg (mb, 0);
4249 tmp_nullable_locals = g_new0 (int, sig->param_count);
4251 for (i = 0; i < sig->param_count; i++) {
4252 MonoType *t = sig->params [i];
4255 mono_mb_emit_ldarg (mb, 1);
4257 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4258 mono_mb_emit_byte (mb, CEE_ADD);
4262 mono_mb_emit_byte (mb, CEE_LDIND_I);
4263 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4264 * So to make this work we unbox it to a local variablee and push a reference to that.
4266 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4267 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4269 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4270 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4271 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4276 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4277 type = sig->params [i]->type;
4281 case MONO_TYPE_BOOLEAN:
4285 case MONO_TYPE_CHAR:
4294 mono_mb_emit_byte (mb, CEE_LDIND_I);
4295 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4297 case MONO_TYPE_STRING:
4298 case MONO_TYPE_CLASS:
4299 case MONO_TYPE_ARRAY:
4301 case MONO_TYPE_SZARRAY:
4302 case MONO_TYPE_OBJECT:
4303 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4305 case MONO_TYPE_GENERICINST:
4306 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4307 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4312 case MONO_TYPE_VALUETYPE:
4313 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4314 type = mono_class_enum_basetype (t->data.klass)->type;
4317 mono_mb_emit_byte (mb, CEE_LDIND_I);
4318 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4319 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4320 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4321 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4323 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4327 g_assert_not_reached ();
4332 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4333 } else if (need_direct_wrapper) {
4334 mono_mb_emit_op (mb, CEE_CALL, method);
4336 mono_mb_emit_ldarg (mb, 3);
4337 mono_mb_emit_calli (mb, callsig);
4340 if (sig->ret->byref) {
4342 g_assert_not_reached ();
4345 switch (sig->ret->type) {
4346 case MONO_TYPE_VOID:
4347 if (!method->string_ctor)
4348 mono_mb_emit_byte (mb, CEE_LDNULL);
4350 case MONO_TYPE_BOOLEAN:
4351 case MONO_TYPE_CHAR:
4364 case MONO_TYPE_VALUETYPE:
4365 case MONO_TYPE_TYPEDBYREF:
4366 case MONO_TYPE_GENERICINST:
4367 /* box value types */
4368 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4370 case MONO_TYPE_STRING:
4371 case MONO_TYPE_CLASS:
4372 case MONO_TYPE_ARRAY:
4373 case MONO_TYPE_SZARRAY:
4374 case MONO_TYPE_OBJECT:
4378 /* The result is an IntPtr */
4379 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4382 g_assert_not_reached ();
4385 mono_mb_emit_stloc (mb, 0);
4387 /* Convert back nullable-byref arguments */
4388 for (i = 0; i < sig->param_count; i++) {
4389 MonoType *t = sig->params [i];
4392 * Box the result and put it back into the array, the caller will have
4393 * to obtain it from there.
4395 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4396 mono_mb_emit_ldarg (mb, 1);
4397 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4398 mono_mb_emit_byte (mb, CEE_ADD);
4400 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4401 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4403 mono_mb_emit_byte (mb, CEE_STIND_REF);
4407 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4409 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4410 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4411 clause->try_len = mono_mb_get_label (mb);
4414 clause->data.filter_offset = mono_mb_get_label (mb);
4416 mono_mb_emit_byte (mb, CEE_POP);
4417 mono_mb_emit_byte (mb, CEE_LDARG_2);
4418 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4419 mono_mb_emit_byte (mb, CEE_PREFIX1);
4420 mono_mb_emit_byte (mb, CEE_CGT_UN);
4421 mono_mb_emit_byte (mb, CEE_PREFIX1);
4422 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4424 clause->handler_offset = mono_mb_get_label (mb);
4427 /* store exception */
4428 mono_mb_emit_stloc (mb, 1);
4430 mono_mb_emit_byte (mb, CEE_LDARG_2);
4431 mono_mb_emit_ldloc (mb, 1);
4432 mono_mb_emit_byte (mb, CEE_STIND_REF);
4434 mono_mb_emit_byte (mb, CEE_LDNULL);
4435 mono_mb_emit_stloc (mb, 0);
4437 mono_mb_emit_branch (mb, CEE_LEAVE);
4439 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4441 mono_mb_set_clauses (mb, 1, clause);
4444 mono_mb_patch_branch (mb, pos);
4445 mono_mb_emit_ldloc (mb, 0);
4446 mono_mb_emit_byte (mb, CEE_RET);
4448 g_free (tmp_nullable_locals);
4450 if (need_direct_wrapper) {
4451 mb->skip_visibility = 1;
4452 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4454 /* taken from mono_mb_create_and_cache */
4455 mono_marshal_lock ();
4456 res = g_hash_table_lookup (cache, callsig);
4457 mono_marshal_unlock ();
4459 /* Somebody may have created it before us */
4462 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4464 mono_marshal_lock ();
4465 res = g_hash_table_lookup (cache, callsig);
4468 g_hash_table_insert (cache, callsig, res);
4469 /* Can't insert it into wrapper_hash since the key is a signature */
4470 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4472 mono_free_method (newm);
4474 mono_marshal_unlock ();
4477 /* end mono_mb_create_and_cache */
4486 * mono_marshal_get_runtime_invoke_dynamic:
4488 * Return a method which can be used to invoke managed methods from native code
4490 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4491 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4492 * ARGS should point to an architecture specific structure containing
4493 * the arguments and space for the return value.
4494 * The other arguments are the same as for runtime_invoke (), except that
4495 * ARGS should contain the this argument too.
4496 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4497 * is only one copy of it, which is useful in full-aot.
4500 mono_marshal_get_runtime_invoke_dynamic (void)
4502 static MonoMethod *method;
4503 MonoMethodSignature *csig;
4504 MonoExceptionClause *clause;
4505 MonoMethodBuilder *mb;
4512 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4514 csig->ret = &mono_defaults.void_class->byval_arg;
4515 csig->params [0] = &mono_defaults.int_class->byval_arg;
4516 csig->params [1] = &mono_defaults.int_class->byval_arg;
4517 csig->params [2] = &mono_defaults.int_class->byval_arg;
4518 csig->params [3] = &mono_defaults.int_class->byval_arg;
4520 name = g_strdup ("runtime_invoke_dynamic");
4521 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4524 /* allocate local 0 (object) tmp */
4525 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4526 /* allocate local 1 (object) exc */
4527 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4529 /* cond set *exc to null */
4530 mono_mb_emit_byte (mb, CEE_LDARG_1);
4531 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4532 mono_mb_emit_byte (mb, 3);
4533 mono_mb_emit_byte (mb, CEE_LDARG_1);
4534 mono_mb_emit_byte (mb, CEE_LDNULL);
4535 mono_mb_emit_byte (mb, CEE_STIND_REF);
4537 emit_thread_force_interrupt_checkpoint (mb);
4539 mono_mb_emit_byte (mb, CEE_LDARG_0);
4540 mono_mb_emit_byte (mb, CEE_LDARG_2);
4541 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4542 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4544 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4546 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4547 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4548 clause->try_len = mono_mb_get_label (mb);
4551 clause->data.filter_offset = mono_mb_get_label (mb);
4553 mono_mb_emit_byte (mb, CEE_POP);
4554 mono_mb_emit_byte (mb, CEE_LDARG_1);
4555 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4556 mono_mb_emit_byte (mb, CEE_PREFIX1);
4557 mono_mb_emit_byte (mb, CEE_CGT_UN);
4558 mono_mb_emit_byte (mb, CEE_PREFIX1);
4559 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4561 clause->handler_offset = mono_mb_get_label (mb);
4564 /* store exception */
4565 mono_mb_emit_stloc (mb, 1);
4567 mono_mb_emit_byte (mb, CEE_LDARG_1);
4568 mono_mb_emit_ldloc (mb, 1);
4569 mono_mb_emit_byte (mb, CEE_STIND_REF);
4571 mono_mb_emit_byte (mb, CEE_LDNULL);
4572 mono_mb_emit_stloc (mb, 0);
4574 /* Check for the abort exception */
4575 mono_mb_emit_ldloc (mb, 1);
4576 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4577 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4579 /* Delay the abort exception */
4580 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4582 mono_mb_patch_short_branch (mb, posna);
4583 mono_mb_emit_branch (mb, CEE_LEAVE);
4585 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4587 mono_mb_set_clauses (mb, 1, clause);
4590 mono_mb_patch_branch (mb, pos);
4591 //mono_mb_emit_ldloc (mb, 0);
4592 mono_mb_emit_byte (mb, CEE_RET);
4594 mono_loader_lock ();
4595 /* double-checked locking */
4597 method = mono_mb_create_method (mb, csig, 16);
4599 mono_loader_unlock ();
4607 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4609 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4610 klass->name_space, klass->name);
4612 mono_mb_emit_exception_marshal_directive (mb, msg);
4616 * mono_marshal_get_ldfld_remote_wrapper:
4617 * @klass: The return type
4619 * This method generates a wrapper for calling mono_load_remote_field_new.
4620 * The return type is ignored for now, as mono_load_remote_field_new () always
4621 * returns an object. In the future, to optimize some codepaths, we might
4622 * call a different function that takes a pointer to a valuetype, instead.
4625 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4627 MonoMethodSignature *sig, *csig;
4628 MonoMethodBuilder *mb;
4630 static MonoMethod* cached = NULL;
4632 mono_marshal_lock ();
4634 mono_marshal_unlock ();
4637 mono_marshal_unlock ();
4639 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4641 mb->method->save_lmf = 1;
4643 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4644 sig->params [0] = &mono_defaults.object_class->byval_arg;
4645 sig->params [1] = &mono_defaults.int_class->byval_arg;
4646 sig->params [2] = &mono_defaults.int_class->byval_arg;
4647 sig->ret = &mono_defaults.object_class->byval_arg;
4649 mono_mb_emit_ldarg (mb, 0);
4650 mono_mb_emit_ldarg (mb, 1);
4651 mono_mb_emit_ldarg (mb, 2);
4653 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4654 csig->params [0] = &mono_defaults.object_class->byval_arg;
4655 csig->params [1] = &mono_defaults.int_class->byval_arg;
4656 csig->params [2] = &mono_defaults.int_class->byval_arg;
4657 csig->ret = &mono_defaults.object_class->byval_arg;
4660 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4661 emit_thread_interrupt_checkpoint (mb);
4663 mono_mb_emit_byte (mb, CEE_RET);
4665 mono_marshal_lock ();
4667 mono_marshal_unlock ();
4670 newm = mono_mb_create_method (mb, sig, 4);
4671 mono_marshal_lock ();
4676 mono_marshal_unlock ();
4678 mono_marshal_unlock ();
4679 mono_free_method (newm);
4688 * mono_marshal_get_ldfld_wrapper:
4689 * @type: the type of the field
4691 * This method generates a function which can be use to load a field with type
4692 * @type from an object. The generated function has the following signature:
4693 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4696 mono_marshal_get_ldfld_wrapper (MonoType *type)
4698 MonoMethodSignature *sig;
4699 MonoMethodBuilder *mb;
4704 int t, pos0, pos1 = 0;
4706 type = mono_type_get_underlying_type (type);
4711 if (type->type == MONO_TYPE_SZARRAY) {
4712 klass = mono_defaults.array_class;
4713 } else if (type->type == MONO_TYPE_VALUETYPE) {
4714 klass = type->data.klass;
4715 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4716 klass = mono_defaults.object_class;
4717 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4718 klass = mono_defaults.int_class;
4719 } else if (t == MONO_TYPE_GENERICINST) {
4720 if (mono_type_generic_inst_is_valuetype (type))
4721 klass = mono_class_from_mono_type (type);
4723 klass = mono_defaults.object_class;
4725 klass = mono_class_from_mono_type (type);
4728 klass = mono_defaults.int_class;
4731 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4732 if ((res = mono_marshal_find_in_cache (cache, klass)))
4735 /* we add the %p pointer value of klass because class names are not unique */
4736 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4737 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4740 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4741 sig->params [0] = &mono_defaults.object_class->byval_arg;
4742 sig->params [1] = &mono_defaults.int_class->byval_arg;
4743 sig->params [2] = &mono_defaults.int_class->byval_arg;
4744 sig->params [3] = &mono_defaults.int_class->byval_arg;
4745 sig->ret = &klass->byval_arg;
4747 mono_mb_emit_ldarg (mb, 0);
4748 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4750 mono_mb_emit_ldarg (mb, 0);
4751 mono_mb_emit_ldarg (mb, 1);
4752 mono_mb_emit_ldarg (mb, 2);
4754 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4757 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4758 csig->params [0] = &mono_defaults.object_class->byval_arg;
4759 csig->params [1] = &mono_defaults.int_class->byval_arg;
4760 csig->params [2] = &mono_defaults.int_class->byval_arg;
4761 csig->ret = &klass->this_arg;
4764 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4765 emit_thread_interrupt_checkpoint (mb);
4768 if (klass->valuetype) {
4769 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4770 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4772 mono_mb_emit_byte (mb, CEE_RET);
4776 mono_mb_patch_branch (mb, pos0);
4778 mono_mb_emit_ldarg (mb, 0);
4779 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4780 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4781 mono_mb_emit_ldarg (mb, 3);
4782 mono_mb_emit_byte (mb, CEE_ADD);
4784 if (klass->valuetype)
4785 mono_mb_patch_branch (mb, pos1);
4790 case MONO_TYPE_BOOLEAN:
4791 case MONO_TYPE_CHAR:
4800 case MONO_TYPE_ARRAY:
4801 case MONO_TYPE_SZARRAY:
4802 case MONO_TYPE_OBJECT:
4803 case MONO_TYPE_CLASS:
4804 case MONO_TYPE_STRING:
4808 case MONO_TYPE_FNPTR:
4809 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4811 case MONO_TYPE_VALUETYPE:
4812 g_assert (!klass->enumtype);
4813 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4815 case MONO_TYPE_GENERICINST:
4816 if (mono_type_generic_inst_is_valuetype (type)) {
4817 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4819 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4823 g_warning ("type %x not implemented", type->type);
4824 g_assert_not_reached ();
4827 mono_mb_emit_byte (mb, CEE_RET);
4829 res = mono_mb_create_and_cache (cache, klass,
4830 mb, sig, sig->param_count + 16);
4837 * mono_marshal_get_ldflda_wrapper:
4838 * @type: the type of the field
4840 * This method generates a function which can be used to load a field address
4841 * from an object. The generated function has the following signature:
4842 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4845 mono_marshal_get_ldflda_wrapper (MonoType *type)
4847 MonoMethodSignature *sig;
4848 MonoMethodBuilder *mb;
4853 int t, pos0, pos1, pos2, pos3;
4855 type = mono_type_get_underlying_type (type);
4859 if (type->type == MONO_TYPE_SZARRAY) {
4860 klass = mono_defaults.array_class;
4861 } else if (type->type == MONO_TYPE_VALUETYPE) {
4862 klass = type->data.klass;
4863 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4864 t == MONO_TYPE_CLASS) {
4865 klass = mono_defaults.object_class;
4866 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4867 klass = mono_defaults.int_class;
4868 } else if (t == MONO_TYPE_GENERICINST) {
4869 if (mono_type_generic_inst_is_valuetype (type))
4870 klass = mono_class_from_mono_type (type);
4872 klass = mono_defaults.object_class;
4874 klass = mono_class_from_mono_type (type);
4877 klass = mono_defaults.int_class;
4880 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4881 if ((res = mono_marshal_find_in_cache (cache, klass)))
4884 /* we add the %p pointer value of klass because class names are not unique */
4885 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4886 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4889 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4890 sig->params [0] = &mono_defaults.object_class->byval_arg;
4891 sig->params [1] = &mono_defaults.int_class->byval_arg;
4892 sig->params [2] = &mono_defaults.int_class->byval_arg;
4893 sig->params [3] = &mono_defaults.int_class->byval_arg;
4894 sig->ret = &mono_defaults.int_class->byval_arg;
4896 /* if typeof (this) != transparent_proxy goto pos0 */
4897 mono_mb_emit_ldarg (mb, 0);
4898 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4900 /* if same_appdomain goto pos1 */
4901 mono_mb_emit_ldarg (mb, 0);
4902 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4904 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4906 /* same app domain */
4907 mono_mb_patch_branch (mb, pos1);
4909 /* if typeof (this) != contextbound goto pos2 */
4910 mono_mb_emit_ldarg (mb, 0);
4911 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4913 /* if this->rp->context == mono_context_get goto pos3 */
4914 mono_mb_emit_ldarg (mb, 0);
4915 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4916 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4917 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4918 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4919 mono_mb_emit_icall (mb, mono_context_get);
4920 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4922 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4924 mono_mb_patch_branch (mb, pos2);
4925 mono_mb_patch_branch (mb, pos3);
4927 /* return the address of the field from this->rp->unwrapped_server */
4928 mono_mb_emit_ldarg (mb, 0);
4929 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4930 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4931 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4932 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4933 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4934 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4935 mono_mb_emit_ldarg (mb, 3);
4936 mono_mb_emit_byte (mb, CEE_ADD);
4937 mono_mb_emit_byte (mb, CEE_RET);
4939 /* not a proxy: return the address of the field directly */
4940 mono_mb_patch_branch (mb, pos0);
4942 mono_mb_emit_ldarg (mb, 0);
4943 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4944 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4945 mono_mb_emit_ldarg (mb, 3);
4946 mono_mb_emit_byte (mb, CEE_ADD);
4948 mono_mb_emit_byte (mb, CEE_RET);
4950 res = mono_mb_create_and_cache (cache, klass,
4951 mb, sig, sig->param_count + 16);
4958 * mono_marshal_get_stfld_remote_wrapper:
4959 * klass: The type of the field
4961 * This function generates a wrapper for calling mono_store_remote_field_new
4962 * with the appropriate signature.
4963 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4964 * klass argument anymore.
4967 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4969 MonoMethodSignature *sig, *csig;
4970 MonoMethodBuilder *mb;
4972 static MonoMethod *cached = NULL;
4974 mono_marshal_lock ();
4976 mono_marshal_unlock ();
4979 mono_marshal_unlock ();
4981 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4983 mb->method->save_lmf = 1;
4985 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4986 sig->params [0] = &mono_defaults.object_class->byval_arg;
4987 sig->params [1] = &mono_defaults.int_class->byval_arg;
4988 sig->params [2] = &mono_defaults.int_class->byval_arg;
4989 sig->params [3] = &mono_defaults.object_class->byval_arg;
4990 sig->ret = &mono_defaults.void_class->byval_arg;
4992 mono_mb_emit_ldarg (mb, 0);
4993 mono_mb_emit_ldarg (mb, 1);
4994 mono_mb_emit_ldarg (mb, 2);
4995 mono_mb_emit_ldarg (mb, 3);
4997 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4998 csig->params [0] = &mono_defaults.object_class->byval_arg;
4999 csig->params [1] = &mono_defaults.int_class->byval_arg;
5000 csig->params [2] = &mono_defaults.int_class->byval_arg;
5001 csig->params [3] = &mono_defaults.object_class->byval_arg;
5002 csig->ret = &mono_defaults.void_class->byval_arg;
5005 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5006 emit_thread_interrupt_checkpoint (mb);
5008 mono_mb_emit_byte (mb, CEE_RET);
5010 mono_marshal_lock ();
5012 mono_marshal_unlock ();
5015 newm = mono_mb_create_method (mb, sig, 6);
5016 mono_marshal_lock ();
5021 mono_marshal_unlock ();
5023 mono_marshal_unlock ();
5024 mono_free_method (newm);
5033 * mono_marshal_get_stfld_wrapper:
5034 * @type: the type of the field
5036 * This method generates a function which can be use to store a field with type
5037 * @type. The generated function has the following signature:
5038 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5041 mono_marshal_get_stfld_wrapper (MonoType *type)
5043 MonoMethodSignature *sig;
5044 MonoMethodBuilder *mb;
5051 type = mono_type_get_underlying_type (type);
5055 if (type->type == MONO_TYPE_SZARRAY) {
5056 klass = mono_defaults.array_class;
5057 } else if (type->type == MONO_TYPE_VALUETYPE) {
5058 klass = type->data.klass;
5059 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5060 klass = mono_defaults.object_class;
5061 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5062 klass = mono_defaults.int_class;
5063 } else if (t == MONO_TYPE_GENERICINST) {
5064 if (mono_type_generic_inst_is_valuetype (type))
5065 klass = mono_class_from_mono_type (type);
5067 klass = mono_defaults.object_class;
5069 klass = mono_class_from_mono_type (type);
5072 klass = mono_defaults.int_class;
5075 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5076 if ((res = mono_marshal_find_in_cache (cache, klass)))
5079 /* we add the %p pointer value of klass because class names are not unique */
5080 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5081 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5084 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5085 sig->params [0] = &mono_defaults.object_class->byval_arg;
5086 sig->params [1] = &mono_defaults.int_class->byval_arg;
5087 sig->params [2] = &mono_defaults.int_class->byval_arg;
5088 sig->params [3] = &mono_defaults.int_class->byval_arg;
5089 sig->params [4] = &klass->byval_arg;
5090 sig->ret = &mono_defaults.void_class->byval_arg;
5092 mono_mb_emit_ldarg (mb, 0);
5093 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5095 mono_mb_emit_ldarg (mb, 0);
5096 mono_mb_emit_ldarg (mb, 1);
5097 mono_mb_emit_ldarg (mb, 2);
5098 mono_mb_emit_ldarg (mb, 4);
5099 if (klass->valuetype)
5100 mono_mb_emit_op (mb, CEE_BOX, klass);
5102 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5104 mono_mb_emit_byte (mb, CEE_RET);
5106 mono_mb_patch_branch (mb, pos);
5108 mono_mb_emit_ldarg (mb, 0);
5109 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5110 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5111 mono_mb_emit_ldarg (mb, 3);
5112 mono_mb_emit_byte (mb, CEE_ADD);
5113 mono_mb_emit_ldarg (mb, 4);
5118 case MONO_TYPE_BOOLEAN:
5119 case MONO_TYPE_CHAR:
5128 case MONO_TYPE_ARRAY:
5129 case MONO_TYPE_SZARRAY:
5130 case MONO_TYPE_OBJECT:
5131 case MONO_TYPE_CLASS:
5132 case MONO_TYPE_STRING:
5136 case MONO_TYPE_FNPTR:
5137 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5139 case MONO_TYPE_VALUETYPE:
5140 g_assert (!klass->enumtype);
5141 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5143 case MONO_TYPE_GENERICINST:
5144 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5147 g_warning ("type %x not implemented", type->type);
5148 g_assert_not_reached ();
5151 mono_mb_emit_byte (mb, CEE_RET);
5153 res = mono_mb_create_and_cache (cache, klass,
5154 mb, sig, sig->param_count + 16);
5161 * generates IL code for the icall wrapper (the generated method
5162 * calls the unmanaged code in func)
5165 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5167 MonoMethodSignature *csig, *csig2;
5168 MonoMethodBuilder *mb;
5172 g_assert (sig->pinvoke);
5174 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5176 mb->method->save_lmf = 1;
5178 /* Add an explicit this argument */
5180 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5182 csig2 = signature_dup (mono_defaults.corlib, sig);
5185 mono_mb_emit_byte (mb, CEE_LDARG_0);
5187 for (i = 0; i < sig->param_count; i++)
5188 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5190 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5191 if (check_exceptions)
5192 emit_thread_interrupt_checkpoint (mb);
5193 mono_mb_emit_byte (mb, CEE_RET);
5195 csig = signature_dup (mono_defaults.corlib, sig);
5197 if (csig->call_convention == MONO_CALL_VARARG)
5198 csig->call_convention = 0;
5200 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5207 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5208 MonoMarshalSpec *spec,
5209 int conv_arg, MonoType **conv_arg_type,
5210 MarshalAction action)
5214 static MonoClass *ICustomMarshaler = NULL;
5215 static MonoMethod *cleanup_native, *cleanup_managed;
5216 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5217 MonoMethod *get_instance;
5218 MonoMethodBuilder *mb = m->mb;
5219 char *exception_msg = NULL;
5223 if (!ICustomMarshaler) {
5224 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5225 g_assert (ICustomMarshaler);
5227 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5228 g_assert (cleanup_native);
5229 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5230 g_assert (cleanup_managed);
5231 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5232 g_assert (marshal_managed_to_native);
5233 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5234 g_assert (marshal_native_to_managed);
5237 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5238 g_assert (mtype != NULL);
5239 mklass = mono_class_from_mono_type (mtype);
5240 g_assert (mklass != NULL);
5242 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5243 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5245 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5247 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5248 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5249 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5250 (get_sig->params [0]->type != MONO_TYPE_STRING))
5251 get_instance = NULL;
5255 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);
5257 /* Throw exception and emit compensation code if neccesary */
5258 if (exception_msg) {
5260 case MARSHAL_ACTION_CONV_IN:
5261 case MARSHAL_ACTION_CONV_RESULT:
5262 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5263 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5264 mono_mb_emit_byte (mb, CEE_POP);
5266 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5267 g_free (exception_msg);
5270 case MARSHAL_ACTION_PUSH:
5271 mono_mb_emit_byte (mb, CEE_LDNULL);
5279 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5280 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5283 case MARSHAL_ACTION_CONV_IN:
5285 case MONO_TYPE_CLASS:
5286 case MONO_TYPE_OBJECT:
5287 case MONO_TYPE_STRING:
5288 case MONO_TYPE_ARRAY:
5289 case MONO_TYPE_SZARRAY:
5290 case MONO_TYPE_VALUETYPE:
5294 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5295 g_assert_not_reached ();
5299 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5301 mono_mb_emit_byte (mb, CEE_LDNULL);
5302 mono_mb_emit_stloc (mb, conv_arg);
5304 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5307 /* Minic MS.NET behavior */
5308 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5311 /* Check for null */
5312 mono_mb_emit_ldarg (mb, argnum);
5314 mono_mb_emit_byte (mb, CEE_LDIND_I);
5315 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5317 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5319 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5321 mono_mb_emit_ldarg (mb, argnum);
5323 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5325 if (t->type == MONO_TYPE_VALUETYPE) {
5327 * Since we can't determine the type of the argument, we
5328 * will assume the unmanaged function takes a pointer.
5330 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5332 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5335 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5336 mono_mb_emit_stloc (mb, conv_arg);
5338 mono_mb_patch_branch (mb, pos2);
5341 case MARSHAL_ACTION_CONV_OUT:
5342 /* Check for null */
5343 mono_mb_emit_ldloc (mb, conv_arg);
5344 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5347 mono_mb_emit_ldarg (mb, argnum);
5349 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5351 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5353 mono_mb_emit_ldloc (mb, conv_arg);
5354 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5355 mono_mb_emit_byte (mb, CEE_STIND_REF);
5356 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5357 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5359 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5361 mono_mb_emit_ldloc (mb, conv_arg);
5362 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5364 /* We have nowhere to store the result */
5365 mono_mb_emit_byte (mb, CEE_POP);
5368 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5370 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5372 mono_mb_emit_ldloc (mb, conv_arg);
5374 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5376 mono_mb_patch_branch (mb, pos2);
5379 case MARSHAL_ACTION_PUSH:
5381 mono_mb_emit_ldloc_addr (mb, conv_arg);
5383 mono_mb_emit_ldloc (mb, conv_arg);
5386 case MARSHAL_ACTION_CONV_RESULT:
5387 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5389 mono_mb_emit_stloc (mb, 3);
5391 mono_mb_emit_ldloc (mb, 3);
5392 mono_mb_emit_stloc (mb, loc1);
5394 /* Check for null */
5395 mono_mb_emit_ldloc (mb, 3);
5396 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5398 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5400 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5401 mono_mb_emit_byte (mb, CEE_DUP);
5403 mono_mb_emit_ldloc (mb, 3);
5404 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5405 mono_mb_emit_stloc (mb, 3);
5407 mono_mb_emit_ldloc (mb, loc1);
5408 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5410 mono_mb_patch_branch (mb, pos2);
5413 case MARSHAL_ACTION_MANAGED_CONV_IN:
5414 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5416 mono_mb_emit_byte (mb, CEE_LDNULL);
5417 mono_mb_emit_stloc (mb, conv_arg);
5419 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5422 /* Check for null */
5423 mono_mb_emit_ldarg (mb, argnum);
5425 mono_mb_emit_byte (mb, CEE_LDIND_I);
5426 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5428 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5429 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5431 mono_mb_emit_ldarg (mb, argnum);
5433 mono_mb_emit_byte (mb, CEE_LDIND_I);
5435 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5436 mono_mb_emit_stloc (mb, conv_arg);
5438 mono_mb_patch_branch (mb, pos2);
5441 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5442 g_assert (!t->byref);
5444 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5446 mono_mb_emit_stloc (mb, 3);
5448 mono_mb_emit_ldloc (mb, 3);
5449 mono_mb_emit_stloc (mb, loc1);
5451 /* Check for null */
5452 mono_mb_emit_ldloc (mb, 3);
5453 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5455 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5456 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5457 mono_mb_emit_byte (mb, CEE_DUP);
5459 mono_mb_emit_ldloc (mb, 3);
5460 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5461 mono_mb_emit_stloc (mb, 3);
5463 mono_mb_emit_ldloc (mb, loc1);
5464 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5466 mono_mb_patch_branch (mb, pos2);
5469 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5471 /* Check for null */
5472 mono_mb_emit_ldloc (mb, conv_arg);
5473 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5476 mono_mb_emit_ldarg (mb, argnum);
5478 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5480 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5482 mono_mb_emit_ldloc (mb, conv_arg);
5483 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5484 mono_mb_emit_byte (mb, CEE_STIND_I);
5487 /* Call CleanUpManagedData */
5488 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5490 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5492 mono_mb_emit_ldloc (mb, conv_arg);
5493 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5495 mono_mb_patch_branch (mb, pos2);
5499 g_assert_not_reached ();
5506 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5507 MonoMarshalSpec *spec,
5508 int conv_arg, MonoType **conv_arg_type,
5509 MarshalAction action)
5511 MonoMethodBuilder *mb = m->mb;
5514 case MARSHAL_ACTION_CONV_IN: {
5515 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5517 g_assert (t->type == MONO_TYPE_OBJECT);
5518 g_assert (!t->byref);
5520 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5521 mono_mb_emit_ldarg (mb, argnum);
5522 mono_mb_emit_icon (mb, encoding);
5523 mono_mb_emit_icon (mb, t->attrs);
5524 mono_mb_emit_icall (mb, mono_marshal_asany);
5525 mono_mb_emit_stloc (mb, conv_arg);
5529 case MARSHAL_ACTION_PUSH:
5530 mono_mb_emit_ldloc (mb, conv_arg);
5533 case MARSHAL_ACTION_CONV_OUT: {
5534 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5536 mono_mb_emit_ldarg (mb, argnum);
5537 mono_mb_emit_ldloc (mb, conv_arg);
5538 mono_mb_emit_icon (mb, encoding);
5539 mono_mb_emit_icon (mb, t->attrs);
5540 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5545 g_assert_not_reached ();
5552 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5553 MonoMarshalSpec *spec,
5554 int conv_arg, MonoType **conv_arg_type,
5555 MarshalAction action)
5557 MonoMethodBuilder *mb = m->mb;
5558 MonoClass *klass, *date_time_class;
5561 klass = mono_class_from_mono_type (t);
5563 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5566 case MARSHAL_ACTION_CONV_IN:
5567 if (klass == date_time_class) {
5568 /* Convert it to an OLE DATE type */
5569 static MonoMethod *to_oadate;
5572 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5573 g_assert (to_oadate);
5575 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5578 mono_mb_emit_ldarg (mb, argnum);
5579 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5582 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5584 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5586 mono_mb_emit_ldarg_addr (mb, argnum);
5587 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5588 mono_mb_emit_stloc (mb, conv_arg);
5592 mono_mb_patch_branch (mb, pos);
5596 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5597 klass->blittable || klass->enumtype)
5600 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5602 /* store the address of the source into local variable 0 */
5604 mono_mb_emit_ldarg (mb, argnum);
5606 mono_mb_emit_ldarg_addr (mb, argnum);
5608 mono_mb_emit_stloc (mb, 0);
5610 /* allocate space for the native struct and
5611 * store the address into local variable 1 (dest) */
5612 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5613 mono_mb_emit_byte (mb, CEE_PREFIX1);
5614 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5615 mono_mb_emit_stloc (mb, conv_arg);
5618 mono_mb_emit_ldloc (mb, 0);
5619 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5622 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5624 mono_mb_emit_ldloc (mb, conv_arg);
5625 mono_mb_emit_stloc (mb, 1);
5627 /* emit valuetype conversion code */
5628 emit_struct_conv (mb, klass, FALSE);
5632 mono_mb_patch_branch (mb, pos);
5635 case MARSHAL_ACTION_PUSH:
5636 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5638 g_assert (!t->byref);
5640 /* Have to change the signature since the vtype is passed byref */
5641 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5643 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5644 klass->blittable || klass->enumtype)
5645 mono_mb_emit_ldarg_addr (mb, argnum);
5647 mono_mb_emit_ldloc (mb, conv_arg);
5651 if (klass == date_time_class) {
5653 mono_mb_emit_ldloc_addr (mb, conv_arg);
5655 mono_mb_emit_ldloc (mb, conv_arg);
5659 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5660 klass->blittable || klass->enumtype) {
5661 mono_mb_emit_ldarg (mb, argnum);
5664 mono_mb_emit_ldloc (mb, conv_arg);
5666 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5667 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5671 case MARSHAL_ACTION_CONV_OUT:
5672 if (klass == date_time_class) {
5673 /* Convert from an OLE DATE type */
5674 static MonoMethod *from_oadate;
5679 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5681 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5682 g_assert (from_oadate);
5684 mono_mb_emit_ldarg (mb, argnum);
5685 mono_mb_emit_ldloc (mb, conv_arg);
5686 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5687 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5692 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5693 klass->blittable || klass->enumtype)
5697 /* dst = argument */
5698 mono_mb_emit_ldarg (mb, argnum);
5699 mono_mb_emit_stloc (mb, 1);
5701 mono_mb_emit_ldloc (mb, 1);
5702 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5704 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5705 /* src = tmp_locals [i] */
5706 mono_mb_emit_ldloc (mb, conv_arg);
5707 mono_mb_emit_stloc (mb, 0);
5709 /* emit valuetype conversion code */
5710 emit_struct_conv (mb, klass, TRUE);
5714 emit_struct_free (mb, klass, conv_arg);
5717 mono_mb_patch_branch (mb, pos);
5720 case MARSHAL_ACTION_CONV_RESULT:
5721 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5723 mono_mb_emit_stloc (mb, 3);
5727 /* load pointer to returned value type */
5728 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5729 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5730 /* store the address of the source into local variable 0 */
5731 mono_mb_emit_stloc (mb, 0);
5733 mono_mb_emit_ldloc_addr (mb, 3);
5734 mono_mb_emit_stloc (mb, 1);
5736 /* emit valuetype conversion code */
5737 emit_struct_conv (mb, klass, TRUE);
5740 case MARSHAL_ACTION_MANAGED_CONV_IN:
5741 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5742 klass->blittable || klass->enumtype) {
5747 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5749 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5753 mono_mb_emit_ldarg (mb, argnum);
5755 mono_mb_emit_ldarg_addr (mb, argnum);
5756 mono_mb_emit_stloc (mb, 0);
5759 mono_mb_emit_ldloc (mb, 0);
5760 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5763 mono_mb_emit_ldloc_addr (mb, conv_arg);
5764 mono_mb_emit_stloc (mb, 1);
5766 /* emit valuetype conversion code */
5767 emit_struct_conv (mb, klass, TRUE);
5770 mono_mb_patch_branch (mb, pos);
5773 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5774 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5775 klass->blittable || klass->enumtype) {
5779 /* Check for null */
5780 mono_mb_emit_ldarg (mb, argnum);
5781 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5784 mono_mb_emit_ldloc_addr (mb, conv_arg);
5785 mono_mb_emit_stloc (mb, 0);
5788 mono_mb_emit_ldarg (mb, argnum);
5789 mono_mb_emit_stloc (mb, 1);
5791 /* emit valuetype conversion code */
5792 emit_struct_conv (mb, klass, FALSE);
5794 mono_mb_patch_branch (mb, pos2);
5797 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5798 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5799 klass->blittable || klass->enumtype) {
5800 mono_mb_emit_stloc (mb, 3);
5805 /* load pointer to returned value type */
5806 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5807 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5809 /* store the address of the source into local variable 0 */
5810 mono_mb_emit_stloc (mb, 0);
5811 /* allocate space for the native struct and
5812 * store the address into dst_ptr */
5813 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5814 m->retobj_class = klass;
5815 g_assert (m->retobj_var);
5816 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5817 mono_mb_emit_byte (mb, CEE_CONV_I);
5818 mono_mb_emit_icall (mb, mono_marshal_alloc);
5819 mono_mb_emit_stloc (mb, 1);
5820 mono_mb_emit_ldloc (mb, 1);
5821 mono_mb_emit_stloc (mb, m->retobj_var);
5823 /* emit valuetype conversion code */
5824 emit_struct_conv (mb, klass, FALSE);
5828 g_assert_not_reached ();
5835 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5836 MonoMarshalSpec *spec,
5837 int conv_arg, MonoType **conv_arg_type,
5838 MarshalAction action)
5840 MonoMethodBuilder *mb = m->mb;
5841 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5842 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5846 case MARSHAL_ACTION_CONV_IN:
5847 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5848 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5851 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5854 mono_mb_emit_ldarg (mb, argnum);
5855 mono_mb_emit_byte (mb, CEE_LDIND_I);
5857 mono_mb_emit_ldarg (mb, argnum);
5861 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5862 MonoException *exc = mono_get_exception_not_implemented (msg);
5863 g_warning ("%s", msg);
5865 mono_raise_exception (exc);
5868 mono_mb_emit_icall (mb, conv_to_icall (conv));
5870 mono_mb_emit_stloc (mb, conv_arg);
5873 case MARSHAL_ACTION_CONV_OUT:
5874 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5876 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5877 mono_mb_emit_exception_marshal_directive (mb, msg);
5881 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5882 mono_mb_emit_ldarg (mb, argnum);
5883 mono_mb_emit_ldloc (mb, conv_arg);
5884 mono_mb_emit_icall (mb, conv_to_icall (conv));
5885 mono_mb_emit_byte (mb, CEE_STIND_REF);
5888 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5889 mono_mb_emit_ldloc (mb, conv_arg);
5890 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5891 mono_mb_emit_icall (mb, mono_free_bstr);
5893 mono_mb_emit_icall (mb, mono_marshal_free);
5897 case MARSHAL_ACTION_PUSH:
5899 mono_mb_emit_ldloc_addr (mb, conv_arg);
5901 mono_mb_emit_ldloc (mb, conv_arg);
5904 case MARSHAL_ACTION_CONV_RESULT:
5905 mono_mb_emit_stloc (mb, 0);
5907 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5909 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5910 mono_mb_emit_exception_marshal_directive (mb, msg);
5914 mono_mb_emit_ldloc (mb, 0);
5915 mono_mb_emit_icall (mb, conv_to_icall (conv));
5916 mono_mb_emit_stloc (mb, 3);
5918 /* free the string */
5919 mono_mb_emit_ldloc (mb, 0);
5920 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5921 mono_mb_emit_icall (mb, mono_free_bstr);
5923 mono_mb_emit_icall (mb, mono_marshal_free);
5926 case MARSHAL_ACTION_MANAGED_CONV_IN:
5927 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5929 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5931 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5933 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5934 mono_mb_emit_exception_marshal_directive (mb, msg);
5938 mono_mb_emit_ldarg (mb, argnum);
5940 mono_mb_emit_byte (mb, CEE_LDIND_I);
5941 mono_mb_emit_icall (mb, conv_to_icall (conv));
5942 mono_mb_emit_stloc (mb, conv_arg);
5945 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5948 mono_mb_emit_ldarg (mb, argnum);
5949 mono_mb_emit_ldloc (mb, conv_arg);
5950 mono_mb_emit_icall (mb, conv_to_icall (conv));
5951 mono_mb_emit_byte (mb, CEE_STIND_I);
5956 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5957 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5958 /* We need to make a copy so the caller is able to free it */
5959 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5961 mono_mb_emit_icall (mb, conv_to_icall (conv));
5962 mono_mb_emit_stloc (mb, 3);
5966 g_assert_not_reached ();
5973 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5974 MonoMarshalSpec *spec, int conv_arg,
5975 MonoType **conv_arg_type, MarshalAction action)
5977 MonoMethodBuilder *mb = m->mb;
5980 case MARSHAL_ACTION_CONV_IN: {
5981 MonoType *intptr_type;
5982 int dar_release_slot, pos;
5984 intptr_type = &mono_defaults.int_class->byval_arg;
5985 conv_arg = mono_mb_add_local (mb, intptr_type);
5986 *conv_arg_type = intptr_type;
5988 if (!sh_dangerous_add_ref)
5989 init_safe_handle ();
5991 mono_mb_emit_ldarg (mb, argnum);
5992 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5993 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5995 mono_mb_patch_branch (mb, pos);
5998 * My tests in show that ref SafeHandles are not really
5999 * passed as ref objects. Instead a NULL is passed as the
6002 mono_mb_emit_icon (mb, 0);
6003 mono_mb_emit_stloc (mb, conv_arg);
6007 /* Create local to hold the ref parameter to DangerousAddRef */
6008 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6010 /* set release = false; */
6011 mono_mb_emit_icon (mb, 0);
6012 mono_mb_emit_stloc (mb, dar_release_slot);
6014 /* safehandle.DangerousAddRef (ref release) */
6015 mono_mb_emit_ldarg (mb, argnum);
6016 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6017 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6019 /* Pull the handle field from SafeHandle */
6020 mono_mb_emit_ldarg (mb, argnum);
6021 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6022 mono_mb_emit_byte (mb, CEE_LDIND_I);
6023 mono_mb_emit_stloc (mb, conv_arg);
6028 case MARSHAL_ACTION_PUSH:
6030 mono_mb_emit_ldloc_addr (mb, conv_arg);
6032 mono_mb_emit_ldloc (mb, conv_arg);
6035 case MARSHAL_ACTION_CONV_OUT: {
6036 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6037 int dar_release_slot = conv_arg + 1;
6040 if (!sh_dangerous_release)
6041 init_safe_handle ();
6047 * My tests indicate that ref SafeHandles parameters are not actually
6048 * passed by ref, but instead a new Handle is created regardless of
6049 * whether a change happens in the unmanaged side.
6051 * Also, the Handle is created before calling into unmanaged code,
6052 * but we do not support that mechanism (getting to the original
6053 * handle) and it makes no difference where we create this
6055 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6057 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6060 /* refval = new SafeHandleDerived ()*/
6061 mono_mb_emit_ldarg (mb, argnum);
6062 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6063 mono_mb_emit_byte (mb, CEE_STIND_REF);
6065 /* refval.handle = returned_handle */
6066 mono_mb_emit_ldarg (mb, argnum);
6067 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6068 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6069 mono_mb_emit_ldloc (mb, conv_arg);
6070 mono_mb_emit_byte (mb, CEE_STIND_I);
6072 mono_mb_emit_ldloc (mb, dar_release_slot);
6073 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6074 mono_mb_emit_ldarg (mb, argnum);
6075 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6076 mono_mb_patch_branch (mb, label_next);
6081 case MARSHAL_ACTION_CONV_RESULT: {
6082 MonoMethod *ctor = NULL;
6083 int intptr_handle_slot;
6085 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6086 mono_mb_emit_byte (mb, CEE_POP);
6087 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6091 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6093 mono_mb_emit_byte (mb, CEE_POP);
6094 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6097 /* Store the IntPtr results into a local */
6098 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6099 mono_mb_emit_stloc (mb, intptr_handle_slot);
6101 /* Create return value */
6102 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6103 mono_mb_emit_stloc (mb, 3);
6105 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6106 mono_mb_emit_ldloc (mb, 3);
6107 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6108 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6109 mono_mb_emit_byte (mb, CEE_STIND_I);
6113 case MARSHAL_ACTION_MANAGED_CONV_IN:
6114 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6117 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6118 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6121 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6122 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6125 printf ("Unhandled case for MarshalAction: %d\n", action);
6132 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6133 MonoMarshalSpec *spec, int conv_arg,
6134 MonoType **conv_arg_type, MarshalAction action)
6136 MonoMethodBuilder *mb = m->mb;
6139 case MARSHAL_ACTION_CONV_IN: {
6140 MonoType *intptr_type;
6142 intptr_type = &mono_defaults.int_class->byval_arg;
6143 conv_arg = mono_mb_add_local (mb, intptr_type);
6144 *conv_arg_type = intptr_type;
6147 mono_mb_emit_exception_marshal_directive (mb,
6148 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6151 mono_mb_emit_ldarg_addr (mb, argnum);
6152 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6153 mono_mb_emit_byte (mb, CEE_ADD);
6154 mono_mb_emit_byte (mb, CEE_LDIND_I);
6155 mono_mb_emit_stloc (mb, conv_arg);
6159 case MARSHAL_ACTION_PUSH:
6160 mono_mb_emit_ldloc (mb, conv_arg);
6163 case MARSHAL_ACTION_CONV_OUT: {
6164 /* no resource release required */
6168 case MARSHAL_ACTION_CONV_RESULT: {
6169 mono_mb_emit_exception_marshal_directive (mb,
6170 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6174 case MARSHAL_ACTION_MANAGED_CONV_IN:
6175 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6178 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6179 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6182 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6183 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6186 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6193 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6194 MonoMarshalSpec *spec,
6195 int conv_arg, MonoType **conv_arg_type,
6196 MarshalAction action)
6198 MonoMethodBuilder *mb = m->mb;
6199 MonoClass *klass = mono_class_from_mono_type (t);
6203 case MARSHAL_ACTION_CONV_IN:
6204 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6205 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6207 m->orig_conv_args [argnum] = 0;
6209 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6210 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6211 mono_mb_emit_exception_marshal_directive (mb, msg);
6215 if (klass->delegate) {
6217 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6218 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6219 mono_mb_emit_exception_marshal_directive (mb, msg);
6221 mono_mb_emit_byte (mb, CEE_LDNULL);
6222 mono_mb_emit_stloc (mb, conv_arg);
6224 mono_mb_emit_ldarg (mb, argnum);
6225 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6226 mono_mb_emit_stloc (mb, conv_arg);
6228 } else if (klass == mono_defaults.stringbuilder_class) {
6229 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6230 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6233 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6234 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6235 mono_mb_emit_exception_marshal_directive (mb, msg);
6240 mono_mb_emit_ldarg (mb, argnum);
6243 mono_mb_emit_icall (mb, conv_to_icall (conv));
6245 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6246 MonoException *exc = mono_get_exception_not_implemented (msg);
6247 g_warning ("%s", msg);
6249 mono_raise_exception (exc);
6252 mono_mb_emit_stloc (mb, conv_arg);
6253 } else if (klass->blittable) {
6254 mono_mb_emit_byte (mb, CEE_LDNULL);
6255 mono_mb_emit_stloc (mb, conv_arg);
6257 mono_mb_emit_ldarg (mb, argnum);
6258 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6260 mono_mb_emit_ldarg (mb, argnum);
6261 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6262 mono_mb_emit_stloc (mb, conv_arg);
6264 mono_mb_patch_branch (mb, pos);
6267 mono_mb_emit_byte (mb, CEE_LDNULL);
6268 mono_mb_emit_stloc (mb, conv_arg);
6271 /* we dont need any conversions for out parameters */
6272 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6275 mono_mb_emit_ldarg (mb, argnum);
6276 mono_mb_emit_byte (mb, CEE_LDIND_I);
6279 mono_mb_emit_ldarg (mb, argnum);
6280 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6281 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6284 /* store the address of the source into local variable 0 */
6285 mono_mb_emit_stloc (mb, 0);
6286 mono_mb_emit_ldloc (mb, 0);
6287 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6289 /* allocate space for the native struct and store the address */
6290 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6291 mono_mb_emit_byte (mb, CEE_PREFIX1);
6292 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6293 mono_mb_emit_stloc (mb, conv_arg);
6296 /* Need to store the original buffer so we can free it later */
6297 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6298 mono_mb_emit_ldloc (mb, conv_arg);
6299 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6302 /* set the src_ptr */
6303 mono_mb_emit_ldloc (mb, 0);
6304 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6305 mono_mb_emit_stloc (mb, 0);
6308 mono_mb_emit_ldloc (mb, conv_arg);
6309 mono_mb_emit_stloc (mb, 1);
6311 /* emit valuetype conversion code */
6312 emit_struct_conv (mb, klass, FALSE);
6314 mono_mb_patch_branch (mb, pos);
6318 case MARSHAL_ACTION_CONV_OUT:
6319 if (klass == mono_defaults.stringbuilder_class) {
6321 MonoMarshalNative encoding;
6322 MonoMarshalConv conv;
6324 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6325 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6327 g_assert (encoding != -1);
6330 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6334 mono_mb_emit_ldarg (mb, argnum);
6335 mono_mb_emit_ldloc (mb, conv_arg);
6338 case MONO_NATIVE_LPWSTR:
6339 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6341 case MONO_NATIVE_LPSTR:
6342 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6345 g_assert_not_reached ();
6348 mono_mb_emit_byte (mb, CEE_STIND_REF);
6350 mono_mb_emit_ldarg (mb, argnum);
6351 mono_mb_emit_ldloc (mb, conv_arg);
6353 mono_mb_emit_icall (mb, conv_to_icall (conv));
6357 mono_mb_emit_ldloc (mb, conv_arg);
6358 mono_mb_emit_icall (mb, mono_marshal_free);
6363 if (klass->delegate) {
6365 mono_mb_emit_ldarg (mb, argnum);
6366 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6367 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6368 mono_mb_emit_ldloc (mb, conv_arg);
6369 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6370 mono_mb_emit_byte (mb, CEE_STIND_REF);
6375 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6376 /* allocate a new object */
6377 mono_mb_emit_ldarg (mb, argnum);
6378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6379 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6380 mono_mb_emit_byte (mb, CEE_STIND_REF);
6383 /* dst = *argument */
6384 mono_mb_emit_ldarg (mb, argnum);
6387 mono_mb_emit_byte (mb, CEE_LDIND_I);
6389 mono_mb_emit_stloc (mb, 1);
6391 mono_mb_emit_ldloc (mb, 1);
6392 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6394 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6395 mono_mb_emit_ldloc (mb, 1);
6396 mono_mb_emit_icon (mb, sizeof (MonoObject));
6397 mono_mb_emit_byte (mb, CEE_ADD);
6398 mono_mb_emit_stloc (mb, 1);
6400 /* src = tmp_locals [i] */
6401 mono_mb_emit_ldloc (mb, conv_arg);
6402 mono_mb_emit_stloc (mb, 0);
6404 /* emit valuetype conversion code */
6405 emit_struct_conv (mb, klass, TRUE);
6407 /* Free the structure returned by the native code */
6408 emit_struct_free (mb, klass, conv_arg);
6410 if (m->orig_conv_args [argnum]) {
6412 * If the native function changed the pointer, then free
6413 * the original structure plus the new pointer.
6415 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6416 mono_mb_emit_ldloc (mb, conv_arg);
6417 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6419 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6420 g_assert (m->orig_conv_args [argnum]);
6422 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6425 mono_mb_emit_ldloc (mb, conv_arg);
6426 mono_mb_emit_icall (mb, g_free);
6428 mono_mb_patch_branch (mb, pos2);
6432 /* Free the original structure passed to native code */
6433 emit_struct_free (mb, klass, conv_arg);
6435 mono_mb_patch_branch (mb, pos);
6438 case MARSHAL_ACTION_PUSH:
6440 mono_mb_emit_ldloc_addr (mb, conv_arg);
6442 mono_mb_emit_ldloc (mb, conv_arg);
6445 case MARSHAL_ACTION_CONV_RESULT:
6446 if (klass->delegate) {
6447 g_assert (!t->byref);
6448 mono_mb_emit_stloc (mb, 0);
6449 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6450 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6451 mono_mb_emit_ldloc (mb, 0);
6452 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6453 mono_mb_emit_stloc (mb, 3);
6456 mono_mb_emit_stloc (mb, 0);
6458 /* Make a copy since emit_conv modifies local 0 */
6459 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6460 mono_mb_emit_ldloc (mb, 0);
6461 mono_mb_emit_stloc (mb, loc);
6463 mono_mb_emit_byte (mb, CEE_LDNULL);
6464 mono_mb_emit_stloc (mb, 3);
6466 mono_mb_emit_ldloc (mb, 0);
6467 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6469 /* allocate result object */
6471 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6472 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6473 mono_mb_emit_stloc (mb, 3);
6477 mono_mb_emit_ldloc (mb, 3);
6478 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6479 mono_mb_emit_stloc (mb, 1);
6481 /* emit conversion code */
6482 emit_struct_conv (mb, klass, TRUE);
6484 emit_struct_free (mb, klass, loc);
6486 /* Free the pointer allocated by unmanaged code */
6487 mono_mb_emit_ldloc (mb, loc);
6488 mono_mb_emit_icall (mb, g_free);
6489 mono_mb_patch_branch (mb, pos);
6493 case MARSHAL_ACTION_MANAGED_CONV_IN:
6494 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6496 if (klass->delegate) {
6497 g_assert (!t->byref);
6498 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6499 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6500 mono_mb_emit_ldarg (mb, argnum);
6501 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6502 mono_mb_emit_stloc (mb, conv_arg);
6506 if (klass == mono_defaults.stringbuilder_class) {
6507 MonoMarshalNative encoding;
6509 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6512 g_assert (encoding == MONO_NATIVE_LPSTR);
6514 g_assert (!t->byref);
6515 g_assert (encoding != -1);
6517 mono_mb_emit_ldarg (mb, argnum);
6518 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6519 mono_mb_emit_stloc (mb, conv_arg);
6523 /* The class can not have an automatic layout */
6524 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6525 mono_mb_emit_auto_layout_exception (mb, klass);
6529 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6530 mono_mb_emit_byte (mb, CEE_LDNULL);
6531 mono_mb_emit_stloc (mb, conv_arg);
6536 mono_mb_emit_ldarg (mb, argnum);
6540 /* Check for NULL and raise an exception */
6541 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6543 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6545 mono_mb_patch_branch (mb, pos2);
6546 mono_mb_emit_ldarg (mb, argnum);
6547 mono_mb_emit_byte (mb, CEE_LDIND_I);
6550 mono_mb_emit_stloc (mb, 0);
6552 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6553 mono_mb_emit_stloc (mb, conv_arg);
6555 mono_mb_emit_ldloc (mb, 0);
6556 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6558 /* Create and set dst */
6559 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6560 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6561 mono_mb_emit_stloc (mb, conv_arg);
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6564 mono_mb_emit_stloc (mb, 1);
6566 /* emit valuetype conversion code */
6567 emit_struct_conv (mb, klass, TRUE);
6569 mono_mb_patch_branch (mb, pos);
6572 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6574 /* Check for null */
6575 mono_mb_emit_ldloc (mb, conv_arg);
6576 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6577 mono_mb_emit_ldarg (mb, argnum);
6578 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6579 mono_mb_emit_byte (mb, CEE_STIND_REF);
6580 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6582 mono_mb_patch_branch (mb, pos);
6585 mono_mb_emit_ldloc (mb, conv_arg);
6586 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6587 mono_mb_emit_stloc (mb, 0);
6589 /* Allocate and set dest */
6590 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6591 mono_mb_emit_byte (mb, CEE_CONV_I);
6592 mono_mb_emit_icall (mb, mono_marshal_alloc);
6593 mono_mb_emit_stloc (mb, 1);
6595 /* Update argument pointer */
6596 mono_mb_emit_ldarg (mb, argnum);
6597 mono_mb_emit_ldloc (mb, 1);
6598 mono_mb_emit_byte (mb, CEE_STIND_I);
6600 /* emit valuetype conversion code */
6601 emit_struct_conv (mb, klass, FALSE);
6603 mono_mb_patch_branch (mb, pos2);
6605 /* byval [Out] marshalling */
6607 /* FIXME: Handle null */
6610 mono_mb_emit_ldloc (mb, conv_arg);
6611 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6612 mono_mb_emit_stloc (mb, 0);
6615 mono_mb_emit_ldarg (mb, argnum);
6616 mono_mb_emit_stloc (mb, 1);
6618 /* emit valuetype conversion code */
6619 emit_struct_conv (mb, klass, FALSE);
6623 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6624 if (klass->delegate) {
6625 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6626 mono_mb_emit_stloc (mb, 3);
6630 /* The class can not have an automatic layout */
6631 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6632 mono_mb_emit_auto_layout_exception (mb, klass);
6636 mono_mb_emit_stloc (mb, 0);
6637 /* Check for null */
6638 mono_mb_emit_ldloc (mb, 0);
6639 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6640 mono_mb_emit_byte (mb, CEE_LDNULL);
6641 mono_mb_emit_stloc (mb, 3);
6642 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6644 mono_mb_patch_branch (mb, pos);
6647 mono_mb_emit_ldloc (mb, 0);
6648 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6649 mono_mb_emit_stloc (mb, 0);
6651 /* Allocate and set dest */
6652 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6653 mono_mb_emit_byte (mb, CEE_CONV_I);
6654 mono_mb_emit_icall (mb, mono_marshal_alloc);
6655 mono_mb_emit_byte (mb, CEE_DUP);
6656 mono_mb_emit_stloc (mb, 1);
6657 mono_mb_emit_stloc (mb, 3);
6659 emit_struct_conv (mb, klass, FALSE);
6661 mono_mb_patch_branch (mb, pos2);
6665 g_assert_not_reached ();
6672 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6673 MonoMarshalSpec *spec,
6674 int conv_arg, MonoType **conv_arg_type,
6675 MarshalAction action)
6677 MonoMethodBuilder *mb = m->mb;
6678 static MonoMethod *get_object_for_native_variant = NULL;
6679 static MonoMethod *get_native_variant_for_object = NULL;
6681 mono_init_com_types ();
6683 if (!get_object_for_native_variant)
6684 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6685 g_assert (get_object_for_native_variant);
6687 if (!get_native_variant_for_object)
6688 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6689 g_assert (get_native_variant_for_object);
6692 case MARSHAL_ACTION_CONV_IN: {
6693 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6696 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6698 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6700 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6703 mono_mb_emit_ldarg (mb, argnum);
6705 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6706 mono_mb_emit_ldloc_addr (mb, conv_arg);
6707 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6711 case MARSHAL_ACTION_CONV_OUT: {
6712 static MonoMethod *variant_clear = NULL;
6715 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6716 g_assert (variant_clear);
6719 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6720 mono_mb_emit_ldarg (mb, argnum);
6721 mono_mb_emit_ldloc_addr (mb, conv_arg);
6722 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6723 mono_mb_emit_byte (mb, CEE_STIND_REF);
6726 mono_mb_emit_ldloc_addr (mb, conv_arg);
6727 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6731 case MARSHAL_ACTION_PUSH:
6733 mono_mb_emit_ldloc_addr (mb, conv_arg);
6735 mono_mb_emit_ldloc (mb, conv_arg);
6738 case MARSHAL_ACTION_CONV_RESULT: {
6739 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6740 mono_mb_emit_exception_marshal_directive (mb, msg);
6744 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6745 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6748 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6750 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6752 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6756 mono_mb_emit_ldarg (mb, argnum);
6758 mono_mb_emit_ldarg_addr (mb, argnum);
6759 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6760 mono_mb_emit_stloc (mb, conv_arg);
6764 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6765 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6766 mono_mb_emit_ldloc (mb, conv_arg);
6767 mono_mb_emit_ldarg (mb, argnum);
6768 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6773 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6774 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6775 mono_mb_emit_exception_marshal_directive (mb, msg);
6780 g_assert_not_reached ();
6787 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6788 MonoMarshalSpec *spec,
6789 int conv_arg, MonoType **conv_arg_type,
6790 MarshalAction action)
6792 MonoMethodBuilder *mb = m->mb;
6793 MonoClass *klass = mono_class_from_mono_type (t);
6794 gboolean need_convert, need_free;
6795 MonoMarshalNative encoding;
6797 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6800 case MARSHAL_ACTION_CONV_IN:
6801 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6802 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6804 if (klass->element_class->blittable) {
6805 mono_mb_emit_ldarg (mb, argnum);
6807 mono_mb_emit_byte (mb, CEE_LDIND_I);
6808 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6809 mono_mb_emit_stloc (mb, conv_arg);
6812 guint32 label1, label2, label3;
6813 int index_var, src_var, dest_ptr, esize;
6814 MonoMarshalConv conv;
6815 gboolean is_string = FALSE;
6817 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6819 eklass = klass->element_class;
6821 if (eklass == mono_defaults.string_class) {
6823 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6825 else if (eklass == mono_defaults.stringbuilder_class) {
6827 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6832 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6833 mono_mb_emit_ldarg (mb, argnum);
6835 mono_mb_emit_byte (mb, CEE_LDIND_I);
6836 mono_mb_emit_stloc (mb, src_var);
6839 mono_mb_emit_ldloc (mb, src_var);
6840 mono_mb_emit_stloc (mb, conv_arg);
6841 mono_mb_emit_ldloc (mb, src_var);
6842 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6846 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6847 MonoException *exc = mono_get_exception_not_implemented (msg);
6848 g_warning ("%s", msg);
6850 mono_raise_exception (exc);
6855 esize = sizeof (gpointer);
6857 esize = mono_class_native_size (eklass, NULL);
6859 /* allocate space for the native struct and store the address */
6860 mono_mb_emit_icon (mb, esize);
6861 mono_mb_emit_ldloc (mb, src_var);
6862 mono_mb_emit_byte (mb, CEE_LDLEN);
6864 if (eklass == mono_defaults.string_class) {
6865 /* Make the array bigger for the terminating null */
6866 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6867 mono_mb_emit_byte (mb, CEE_ADD);
6869 mono_mb_emit_byte (mb, CEE_MUL);
6870 mono_mb_emit_byte (mb, CEE_PREFIX1);
6871 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6872 mono_mb_emit_stloc (mb, conv_arg);
6874 mono_mb_emit_ldloc (mb, conv_arg);
6875 mono_mb_emit_stloc (mb, dest_ptr);
6877 /* Emit marshalling loop */
6878 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6879 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6880 mono_mb_emit_stloc (mb, index_var);
6881 label2 = mono_mb_get_label (mb);
6882 mono_mb_emit_ldloc (mb, index_var);
6883 mono_mb_emit_ldloc (mb, src_var);
6884 mono_mb_emit_byte (mb, CEE_LDLEN);
6885 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6887 /* Emit marshalling code */
6890 mono_mb_emit_ldloc (mb, dest_ptr);
6891 mono_mb_emit_ldloc (mb, src_var);
6892 mono_mb_emit_ldloc (mb, index_var);
6893 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6894 mono_mb_emit_icall (mb, conv_to_icall (conv));
6895 mono_mb_emit_byte (mb, CEE_STIND_I);
6897 /* set the src_ptr */
6898 mono_mb_emit_ldloc (mb, src_var);
6899 mono_mb_emit_ldloc (mb, index_var);
6900 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6901 mono_mb_emit_stloc (mb, 0);
6904 mono_mb_emit_ldloc (mb, dest_ptr);
6905 mono_mb_emit_stloc (mb, 1);
6907 /* emit valuetype conversion code */
6908 emit_struct_conv (mb, eklass, FALSE);
6911 mono_mb_emit_add_to_local (mb, index_var, 1);
6912 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6914 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6916 mono_mb_patch_branch (mb, label3);
6918 if (eklass == mono_defaults.string_class) {
6919 /* Null terminate */
6920 mono_mb_emit_ldloc (mb, dest_ptr);
6921 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6922 mono_mb_emit_byte (mb, CEE_STIND_REF);
6925 mono_mb_patch_branch (mb, label1);
6930 case MARSHAL_ACTION_CONV_OUT:
6931 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6932 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);
6933 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6936 if (need_convert || need_free) {
6937 /* FIXME: Optimize blittable case */
6939 guint32 label1, label2, label3;
6940 int index_var, src_ptr, loc, esize;
6942 eklass = klass->element_class;
6943 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6944 esize = sizeof (gpointer);
6946 esize = mono_class_native_size (eklass, NULL);
6947 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6948 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6951 mono_mb_emit_ldarg (mb, argnum);
6953 mono_mb_emit_byte (mb, CEE_LDIND_I);
6954 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6956 mono_mb_emit_ldloc (mb, conv_arg);
6957 mono_mb_emit_stloc (mb, src_ptr);
6959 /* Emit marshalling loop */
6960 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6961 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6962 mono_mb_emit_stloc (mb, index_var);
6963 label2 = mono_mb_get_label (mb);
6964 mono_mb_emit_ldloc (mb, index_var);
6965 mono_mb_emit_ldarg (mb, argnum);
6967 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6968 mono_mb_emit_byte (mb, CEE_LDLEN);
6969 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6971 /* Emit marshalling code */
6973 if (eklass == mono_defaults.stringbuilder_class) {
6974 gboolean need_free2;
6975 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6977 g_assert (conv != -1);
6980 mono_mb_emit_ldarg (mb, argnum);
6982 mono_mb_emit_byte (mb, CEE_LDIND_I);
6983 mono_mb_emit_ldloc (mb, index_var);
6984 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6987 mono_mb_emit_ldloc (mb, src_ptr);
6988 mono_mb_emit_byte (mb, CEE_LDIND_I);
6990 mono_mb_emit_icall (mb, conv_to_icall (conv));
6994 mono_mb_emit_ldloc (mb, src_ptr);
6995 mono_mb_emit_byte (mb, CEE_LDIND_I);
6997 mono_mb_emit_icall (mb, mono_marshal_free);
7000 else if (eklass == mono_defaults.string_class) {
7003 mono_mb_emit_ldloc (mb, src_ptr);
7004 mono_mb_emit_byte (mb, CEE_LDIND_I);
7006 mono_mb_emit_icall (mb, mono_marshal_free);
7011 /* set the src_ptr */
7012 mono_mb_emit_ldloc (mb, src_ptr);
7013 mono_mb_emit_stloc (mb, 0);
7016 mono_mb_emit_ldarg (mb, argnum);
7018 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7019 mono_mb_emit_ldloc (mb, index_var);
7020 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7021 mono_mb_emit_stloc (mb, 1);
7023 /* emit valuetype conversion code */
7024 emit_struct_conv (mb, eklass, TRUE);
7028 mono_mb_emit_ldloc (mb, src_ptr);
7029 mono_mb_emit_stloc (mb, loc);
7030 mono_mb_emit_ldloc (mb, loc);
7032 emit_struct_free (mb, eklass, loc);
7036 mono_mb_emit_add_to_local (mb, index_var, 1);
7037 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7039 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7041 mono_mb_patch_branch (mb, label1);
7042 mono_mb_patch_branch (mb, label3);
7045 if (klass->element_class->blittable) {
7046 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7048 mono_mb_emit_ldarg (mb, argnum);
7049 mono_mb_emit_ldloc (mb, conv_arg);
7050 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7055 case MARSHAL_ACTION_PUSH:
7057 mono_mb_emit_ldloc_addr (mb, conv_arg);
7059 mono_mb_emit_ldloc (mb, conv_arg);
7062 case MARSHAL_ACTION_CONV_RESULT:
7063 /* fixme: we need conversions here */
7064 mono_mb_emit_stloc (mb, 3);
7067 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7069 guint32 label1, label2, label3;
7070 int index_var, src_ptr, loc, esize, param_num, num_elem;
7071 MonoMarshalConv conv;
7072 gboolean is_string = FALSE;
7074 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7075 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7078 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7079 mono_mb_emit_exception_marshal_directive (mb, msg);
7083 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7084 mono_mb_emit_exception_marshal_directive (mb, msg);
7087 if (spec->native != MONO_NATIVE_LPARRAY) {
7088 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7089 mono_mb_emit_exception_marshal_directive (mb, msg);
7093 /* FIXME: t is from the method which is wrapped, not the delegate type */
7094 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7096 param_num = spec->data.array_data.param_num;
7097 num_elem = spec->data.array_data.num_elem;
7098 if (spec->data.array_data.elem_mult == 0)
7099 /* param_num is not specified */
7102 if (param_num == -1) {
7103 if (num_elem <= 0) {
7104 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7105 mono_mb_emit_exception_marshal_directive (mb, msg);
7110 /* FIXME: Optimize blittable case */
7112 eklass = klass->element_class;
7113 if (eklass == mono_defaults.string_class) {
7115 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7117 else if (eklass == mono_defaults.stringbuilder_class) {
7119 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7124 mono_marshal_load_type_info (eklass);
7127 esize = sizeof (gpointer);
7129 esize = mono_class_native_size (eklass, NULL);
7130 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7131 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7133 mono_mb_emit_byte (mb, CEE_LDNULL);
7134 mono_mb_emit_stloc (mb, conv_arg);
7136 /* Check param index */
7137 if (param_num != -1) {
7138 if (param_num >= m->sig->param_count) {
7139 char *msg = g_strdup ("Array size control parameter index is out of range.");
7140 mono_mb_emit_exception_marshal_directive (mb, msg);
7143 switch (m->sig->params [param_num]->type) {
7156 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7157 mono_mb_emit_exception_marshal_directive (mb, msg);
7164 mono_mb_emit_ldarg (mb, argnum);
7165 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7167 mono_mb_emit_ldarg (mb, argnum);
7168 mono_mb_emit_stloc (mb, src_ptr);
7170 /* Create managed array */
7172 * The LPArray marshalling spec says that sometimes param_num starts
7173 * from 1, sometimes it starts from 0. But MS seems to allways start
7177 if (param_num == -1) {
7178 mono_mb_emit_icon (mb, num_elem);
7180 mono_mb_emit_ldarg (mb, param_num);
7182 mono_mb_emit_icon (mb, num_elem);
7183 mono_mb_emit_byte (mb, CEE_ADD);
7185 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7188 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7189 mono_mb_emit_stloc (mb, conv_arg);
7191 if (eklass->blittable) {
7192 mono_mb_emit_ldloc (mb, conv_arg);
7193 mono_mb_emit_byte (mb, CEE_CONV_I);
7194 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7195 mono_mb_emit_byte (mb, CEE_ADD);
7196 mono_mb_emit_ldarg (mb, argnum);
7197 mono_mb_emit_ldloc (mb, conv_arg);
7198 mono_mb_emit_byte (mb, CEE_LDLEN);
7199 mono_mb_emit_icon (mb, esize);
7200 mono_mb_emit_byte (mb, CEE_MUL);
7201 mono_mb_emit_byte (mb, CEE_PREFIX1);
7202 mono_mb_emit_byte (mb, CEE_CPBLK);
7206 /* Emit marshalling loop */
7207 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7208 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7209 mono_mb_emit_stloc (mb, index_var);
7210 label2 = mono_mb_get_label (mb);
7211 mono_mb_emit_ldloc (mb, index_var);
7212 mono_mb_emit_ldloc (mb, conv_arg);
7213 mono_mb_emit_byte (mb, CEE_LDLEN);
7214 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7216 /* Emit marshalling code */
7218 g_assert (conv != -1);
7220 mono_mb_emit_ldloc (mb, conv_arg);
7221 mono_mb_emit_ldloc (mb, index_var);
7223 mono_mb_emit_ldloc (mb, src_ptr);
7224 mono_mb_emit_byte (mb, CEE_LDIND_I);
7226 mono_mb_emit_icall (mb, conv_to_icall (conv));
7227 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7230 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7231 mono_mb_emit_exception_marshal_directive (mb, msg);
7235 mono_mb_emit_add_to_local (mb, index_var, 1);
7236 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7238 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7240 mono_mb_patch_branch (mb, label1);
7241 mono_mb_patch_branch (mb, label3);
7245 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7247 guint32 label1, label2, label3;
7248 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7249 MonoMarshalConv conv;
7250 gboolean is_string = FALSE;
7253 /* Already handled in CONV_IN */
7256 /* These are already checked in CONV_IN */
7257 g_assert (!t->byref);
7258 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7259 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7261 param_num = spec->data.array_data.param_num;
7262 num_elem = spec->data.array_data.num_elem;
7264 if (spec->data.array_data.elem_mult == 0)
7265 /* param_num is not specified */
7268 if (param_num == -1) {
7269 if (num_elem <= 0) {
7270 g_assert_not_reached ();
7274 /* FIXME: Optimize blittable case */
7276 eklass = klass->element_class;
7277 if (eklass == mono_defaults.string_class) {
7279 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7281 else if (eklass == mono_defaults.stringbuilder_class) {
7283 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7288 mono_marshal_load_type_info (eklass);
7291 esize = sizeof (gpointer);
7293 esize = mono_class_native_size (eklass, NULL);
7295 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7296 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7299 mono_mb_emit_ldloc (mb, conv_arg);
7300 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7302 mono_mb_emit_ldarg (mb, argnum);
7303 mono_mb_emit_stloc (mb, dest_ptr);
7305 if (eklass->blittable) {
7307 mono_mb_emit_ldarg (mb, argnum);
7309 mono_mb_emit_ldloc (mb, conv_arg);
7310 mono_mb_emit_byte (mb, CEE_CONV_I);
7311 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7312 mono_mb_emit_byte (mb, CEE_ADD);
7314 mono_mb_emit_ldloc (mb, conv_arg);
7315 mono_mb_emit_byte (mb, CEE_LDLEN);
7316 mono_mb_emit_icon (mb, esize);
7317 mono_mb_emit_byte (mb, CEE_MUL);
7318 mono_mb_emit_byte (mb, CEE_PREFIX1);
7319 mono_mb_emit_byte (mb, CEE_CPBLK);
7323 /* Emit marshalling loop */
7324 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7325 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7326 mono_mb_emit_stloc (mb, index_var);
7327 label2 = mono_mb_get_label (mb);
7328 mono_mb_emit_ldloc (mb, index_var);
7329 mono_mb_emit_ldloc (mb, conv_arg);
7330 mono_mb_emit_byte (mb, CEE_LDLEN);
7331 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7333 /* Emit marshalling code */
7335 g_assert (conv != -1);
7338 mono_mb_emit_ldloc (mb, dest_ptr);
7341 mono_mb_emit_ldloc (mb, conv_arg);
7342 mono_mb_emit_ldloc (mb, index_var);
7344 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7346 mono_mb_emit_icall (mb, conv_to_icall (conv));
7347 mono_mb_emit_byte (mb, CEE_STIND_I);
7350 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7351 mono_mb_emit_exception_marshal_directive (mb, msg);
7355 mono_mb_emit_add_to_local (mb, index_var, 1);
7356 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7358 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7360 mono_mb_patch_branch (mb, label1);
7361 mono_mb_patch_branch (mb, label3);
7365 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7367 guint32 label1, label2, label3;
7368 int index_var, src, dest, esize;
7369 MonoMarshalConv conv = -1;
7370 gboolean is_string = FALSE;
7372 g_assert (!t->byref);
7374 eklass = klass->element_class;
7376 mono_marshal_load_type_info (eklass);
7378 if (eklass == mono_defaults.string_class) {
7380 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7383 g_assert_not_reached ();
7387 esize = sizeof (gpointer);
7389 esize = mono_class_native_size (eklass, NULL);
7391 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7392 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7394 mono_mb_emit_stloc (mb, src);
7395 mono_mb_emit_ldloc (mb, src);
7396 mono_mb_emit_stloc (mb, 3);
7398 /* Check for null */
7399 mono_mb_emit_ldloc (mb, src);
7400 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7402 /* Allocate native array */
7403 mono_mb_emit_icon (mb, esize);
7404 mono_mb_emit_ldloc (mb, src);
7405 mono_mb_emit_byte (mb, CEE_LDLEN);
7407 if (eklass == mono_defaults.string_class) {
7408 /* Make the array bigger for the terminating null */
7409 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7410 mono_mb_emit_byte (mb, CEE_ADD);
7412 mono_mb_emit_byte (mb, CEE_MUL);
7413 mono_mb_emit_icall (mb, mono_marshal_alloc);
7414 mono_mb_emit_stloc (mb, dest);
7415 mono_mb_emit_ldloc (mb, dest);
7416 mono_mb_emit_stloc (mb, 3);
7418 /* Emit marshalling loop */
7419 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7420 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7421 mono_mb_emit_stloc (mb, index_var);
7422 label2 = mono_mb_get_label (mb);
7423 mono_mb_emit_ldloc (mb, index_var);
7424 mono_mb_emit_ldloc (mb, src);
7425 mono_mb_emit_byte (mb, CEE_LDLEN);
7426 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7428 /* Emit marshalling code */
7430 g_assert (conv != -1);
7433 mono_mb_emit_ldloc (mb, dest);
7436 mono_mb_emit_ldloc (mb, src);
7437 mono_mb_emit_ldloc (mb, index_var);
7439 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7441 mono_mb_emit_icall (mb, conv_to_icall (conv));
7442 mono_mb_emit_byte (mb, CEE_STIND_I);
7445 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7446 mono_mb_emit_exception_marshal_directive (mb, msg);
7450 mono_mb_emit_add_to_local (mb, index_var, 1);
7451 mono_mb_emit_add_to_local (mb, dest, esize);
7453 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7455 mono_mb_patch_branch (mb, label3);
7456 mono_mb_patch_branch (mb, label1);
7460 g_assert_not_reached ();
7467 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7468 MonoMarshalSpec *spec,
7469 int conv_arg, MonoType **conv_arg_type,
7470 MarshalAction action)
7472 MonoMethodBuilder *mb = m->mb;
7475 case MARSHAL_ACTION_CONV_IN: {
7476 MonoType *local_type;
7478 guint8 ldc_op = CEE_LDC_I4_1;
7481 local_type = &mono_defaults.int32_class->byval_arg;
7483 switch (spec->native) {
7484 case MONO_NATIVE_I1:
7485 case MONO_NATIVE_U1:
7486 local_type = &mono_defaults.byte_class->byval_arg;
7488 case MONO_NATIVE_VARIANTBOOL:
7489 local_type = &mono_defaults.int16_class->byval_arg;
7490 ldc_op = CEE_LDC_I4_M1;
7492 case MONO_NATIVE_BOOLEAN:
7493 local_type = &mono_defaults.int32_class->byval_arg;
7496 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7497 local_type = &mono_defaults.int32_class->byval_arg;
7502 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7504 *conv_arg_type = local_type;
7505 conv_arg = mono_mb_add_local (mb, local_type);
7507 mono_mb_emit_ldarg (mb, argnum);
7509 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7510 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7511 mono_mb_emit_byte (mb, ldc_op);
7512 mono_mb_emit_stloc (mb, conv_arg);
7513 mono_mb_patch_branch (mb, label_false);
7518 case MARSHAL_ACTION_CONV_OUT:
7520 int label_false, label_end;
7524 mono_mb_emit_ldarg (mb, argnum);
7525 mono_mb_emit_ldloc (mb, conv_arg);
7527 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7528 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7530 label_end = mono_mb_emit_branch (mb, CEE_BR);
7531 mono_mb_patch_branch (mb, label_false);
7532 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7533 mono_mb_patch_branch (mb, label_end);
7535 mono_mb_emit_byte (mb, CEE_STIND_I1);
7539 case MARSHAL_ACTION_PUSH:
7541 mono_mb_emit_ldloc_addr (mb, conv_arg);
7543 mono_mb_emit_ldloc (mb, conv_arg);
7545 mono_mb_emit_ldarg (mb, argnum);
7548 case MARSHAL_ACTION_CONV_RESULT:
7549 /* maybe we need to make sure that it fits within 8 bits */
7550 mono_mb_emit_stloc (mb, 3);
7553 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7554 MonoClass* conv_arg_class = mono_defaults.int32_class;
7555 guint8 ldop = CEE_LDIND_I4;
7556 int label_null, label_false;
7558 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7561 switch (spec->native) {
7562 case MONO_NATIVE_I1:
7563 case MONO_NATIVE_U1:
7564 conv_arg_class = mono_defaults.byte_class;
7565 ldop = CEE_LDIND_I1;
7567 case MONO_NATIVE_VARIANTBOOL:
7568 conv_arg_class = mono_defaults.int16_class;
7569 ldop = CEE_LDIND_I2;
7571 case MONO_NATIVE_BOOLEAN:
7574 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7579 *conv_arg_type = &conv_arg_class->this_arg;
7581 *conv_arg_type = &conv_arg_class->byval_arg;
7584 mono_mb_emit_ldarg (mb, argnum);
7588 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7589 mono_mb_emit_ldarg (mb, argnum);
7590 mono_mb_emit_byte (mb, ldop);
7594 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7595 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7596 mono_mb_emit_stloc (mb, conv_arg);
7597 mono_mb_patch_branch (mb, label_false);
7600 mono_mb_patch_branch (mb, label_null);
7604 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7605 guint8 stop = CEE_STIND_I4;
7606 guint8 ldc_op = CEE_LDC_I4_1;
7607 int label_null,label_false, label_end;;
7612 switch (spec->native) {
7613 case MONO_NATIVE_I1:
7614 case MONO_NATIVE_U1:
7615 stop = CEE_STIND_I1;
7617 case MONO_NATIVE_VARIANTBOOL:
7618 stop = CEE_STIND_I2;
7619 ldc_op = CEE_LDC_I4_M1;
7627 mono_mb_emit_ldarg (mb, argnum);
7628 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7630 mono_mb_emit_ldarg (mb, argnum);
7631 mono_mb_emit_ldloc (mb, conv_arg);
7633 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7634 mono_mb_emit_byte (mb, ldc_op);
7635 label_end = mono_mb_emit_branch (mb, CEE_BR);
7637 mono_mb_patch_branch (mb, label_false);
7638 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7639 mono_mb_patch_branch (mb, label_end);
7641 mono_mb_emit_byte (mb, stop);
7642 mono_mb_patch_branch (mb, label_null);
7647 g_assert_not_reached ();
7654 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7655 MonoMarshalSpec *spec, int conv_arg,
7656 MonoType **conv_arg_type, MarshalAction action)
7658 MonoMethodBuilder *mb = m->mb;
7661 case MARSHAL_ACTION_CONV_IN:
7662 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7663 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7664 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7668 case MARSHAL_ACTION_PUSH:
7669 mono_mb_emit_ldarg (mb, argnum);
7672 case MARSHAL_ACTION_CONV_RESULT:
7673 /* no conversions necessary */
7674 mono_mb_emit_stloc (mb, 3);
7685 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7686 MonoMarshalSpec *spec, int conv_arg,
7687 MonoType **conv_arg_type, MarshalAction action)
7689 MonoMethodBuilder *mb = m->mb;
7692 case MARSHAL_ACTION_PUSH:
7693 /* fixme: dont know how to marshal that. We cant simply
7694 * convert it to a one byte UTF8 character, because an
7695 * unicode character may need more that one byte in UTF8 */
7696 mono_mb_emit_ldarg (mb, argnum);
7699 case MARSHAL_ACTION_CONV_RESULT:
7700 /* fixme: we need conversions here */
7701 mono_mb_emit_stloc (mb, 3);
7712 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7713 MonoMarshalSpec *spec, int conv_arg,
7714 MonoType **conv_arg_type, MarshalAction action)
7716 MonoMethodBuilder *mb = m->mb;
7719 case MARSHAL_ACTION_PUSH:
7720 mono_mb_emit_ldarg (mb, argnum);
7723 case MARSHAL_ACTION_CONV_RESULT:
7724 /* no conversions necessary */
7725 mono_mb_emit_stloc (mb, 3);
7736 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7737 MonoMarshalSpec *spec, int conv_arg,
7738 MonoType **conv_arg_type, MarshalAction action)
7740 /* Ensure that we have marshalling info for this param */
7741 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7743 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7744 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7746 if (spec && spec->native == MONO_NATIVE_ASANY)
7747 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7750 case MONO_TYPE_VALUETYPE:
7751 if (t->data.klass == mono_defaults.handleref_class)
7752 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7754 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7755 case MONO_TYPE_STRING:
7756 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7757 case MONO_TYPE_CLASS:
7758 case MONO_TYPE_OBJECT:
7759 if (spec && spec->native == MONO_NATIVE_STRUCT)
7760 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7763 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7764 spec->native == MONO_NATIVE_IDISPATCH ||
7765 spec->native == MONO_NATIVE_INTERFACE))
7766 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7767 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7768 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7769 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7770 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7773 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7774 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7775 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7777 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7778 case MONO_TYPE_ARRAY:
7779 case MONO_TYPE_SZARRAY:
7780 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7781 case MONO_TYPE_BOOLEAN:
7782 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7784 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7785 case MONO_TYPE_CHAR:
7786 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7799 case MONO_TYPE_FNPTR:
7800 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7801 case MONO_TYPE_GENERICINST:
7802 if (mono_type_generic_inst_is_valuetype (t))
7803 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7805 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7812 * mono_marshal_emit_native_wrapper:
7813 * @image: the image to use for looking up custom marshallers
7814 * @sig: The signature of the native function
7815 * @piinfo: Marshalling information
7816 * @mspecs: Marshalling information
7817 * @aot: whenever the created method will be compiled by the AOT compiler
7818 * @method: if non-NULL, the pinvoke method to call
7819 * @check_exceptions: Whenever to check for pending exceptions after the native call
7821 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7824 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7826 EmitMarshalContext m;
7827 MonoMethodSignature *csig;
7829 int i, argnum, *tmp_locals;
7831 static MonoMethodSignature *get_last_error_sig = NULL;
7836 /* we copy the signature, so that we can set pinvoke to 0 */
7837 csig = signature_dup (mb->method->klass->image, sig);
7842 /* we allocate local for use with emit_struct_conv() */
7843 /* allocate local 0 (pointer) src_ptr */
7844 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7845 /* allocate local 1 (pointer) dst_ptr */
7846 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7847 /* allocate local 2 (boolean) delete_old */
7848 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7850 /* delete_old = FALSE */
7851 mono_mb_emit_icon (mb, 0);
7852 mono_mb_emit_stloc (mb, 2);
7854 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7855 /* allocate local 3 to store the return value */
7856 mono_mb_add_local (mb, sig->ret);
7859 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7860 /* Return type custom marshaling */
7862 * Since we can't determine the return type of the unmanaged function,
7863 * we assume it returns a pointer, and pass that pointer to
7864 * MarshalNativeToManaged.
7866 csig->ret = &mono_defaults.int_class->byval_arg;
7869 /* we first do all conversions */
7870 tmp_locals = alloca (sizeof (int) * sig->param_count);
7871 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7873 for (i = 0; i < sig->param_count; i ++) {
7874 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7877 /* push all arguments */
7880 mono_mb_emit_byte (mb, CEE_LDARG_0);
7882 for (i = 0; i < sig->param_count; i++) {
7883 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7886 /* call the native method */
7887 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7889 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7891 g_assert_not_reached ();
7896 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7897 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7898 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7899 mono_mb_emit_calli (mb, csig);
7901 mono_mb_emit_native_call (mb, csig, func);
7905 /* Set LastError if needed */
7906 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7907 if (!get_last_error_sig) {
7908 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7909 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7910 get_last_error_sig->pinvoke = 1;
7915 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7916 * clobber its value.
7918 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7919 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7921 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7925 /* convert the result */
7926 if (!sig->ret->byref) {
7927 MonoMarshalSpec *spec = mspecs [0];
7928 type = sig->ret->type;
7930 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7931 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7936 case MONO_TYPE_VOID:
7938 case MONO_TYPE_VALUETYPE:
7939 klass = sig->ret->data.klass;
7940 if (klass->enumtype) {
7941 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7944 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7958 case MONO_TYPE_FNPTR:
7959 case MONO_TYPE_STRING:
7960 case MONO_TYPE_CLASS:
7961 case MONO_TYPE_OBJECT:
7962 case MONO_TYPE_BOOLEAN:
7963 case MONO_TYPE_ARRAY:
7964 case MONO_TYPE_SZARRAY:
7965 case MONO_TYPE_CHAR:
7967 case MONO_TYPE_GENERICINST:
7968 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7970 case MONO_TYPE_TYPEDBYREF:
7972 g_warning ("return type 0x%02x unknown", sig->ret->type);
7973 g_assert_not_reached ();
7977 mono_mb_emit_stloc (mb, 3);
7981 * Need to call this after converting the result since MONO_VTADDR needs
7982 * to be adjacent to the call instruction.
7984 if (check_exceptions)
7985 emit_thread_interrupt_checkpoint (mb);
7987 /* we need to convert byref arguments back and free string arrays */
7988 for (i = 0; i < sig->param_count; i++) {
7989 MonoType *t = sig->params [i];
7990 MonoMarshalSpec *spec = mspecs [i + 1];
7992 argnum = i + sig->hasthis;
7994 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7995 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8000 case MONO_TYPE_STRING:
8001 case MONO_TYPE_VALUETYPE:
8002 case MONO_TYPE_CLASS:
8003 case MONO_TYPE_OBJECT:
8004 case MONO_TYPE_SZARRAY:
8005 case MONO_TYPE_BOOLEAN:
8006 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8011 if (!MONO_TYPE_IS_VOID(sig->ret))
8012 mono_mb_emit_ldloc (mb, 3);
8014 mono_mb_emit_byte (mb, CEE_RET);
8017 G_GNUC_UNUSED static void
8018 code_for (MonoMethod *method) {
8019 MonoMethodHeader *header = mono_method_get_header (method);
8020 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));
8024 * mono_marshal_get_native_wrapper:
8025 * @method: The MonoMethod to wrap.
8026 * @check_exceptions: Whenever to check for pending exceptions
8028 * generates IL code for the pinvoke wrapper (the generated method
8029 * calls the unmanaged code in piinfo->addr)
8032 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8034 MonoMethodSignature *sig, *csig;
8035 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8036 MonoMethodBuilder *mb;
8037 MonoMarshalSpec **mspecs;
8040 gboolean pinvoke = FALSE;
8043 const char *exc_class = "MissingMethodException";
8044 const char *exc_arg = NULL;
8046 g_assert (method != NULL);
8047 g_assert (mono_method_signature (method)->pinvoke);
8050 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8052 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8053 if ((res = mono_marshal_find_in_cache (cache, method)))
8056 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8058 return mono_cominterop_get_native_wrapper (method);
8060 g_assert_not_reached ();
8064 sig = mono_method_signature (method);
8066 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8067 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8070 if (!piinfo->addr) {
8072 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8073 exc_arg = "Method contains unsupported native code";
8075 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8077 piinfo->addr = mono_lookup_internal_call (method);
8080 /* hack - redirect certain string constructors to CreateString */
8081 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8082 g_assert (!pinvoke);
8083 g_assert (method->string_ctor);
8084 g_assert (sig->hasthis);
8086 /* CreateString returns a value */
8087 csig = signature_dup (method->klass->image, sig);
8088 csig->ret = &mono_defaults.string_class->byval_arg;
8092 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8093 if (!strcmp ("CreateString", res->name) &&
8094 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8096 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8097 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8099 /* create a wrapper to preserve .ctor in stack trace */
8100 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8102 mono_mb_emit_byte (mb, CEE_LDARG_0);
8103 for (i = 1; i <= csig->param_count; i++)
8104 mono_mb_emit_ldarg (mb, i);
8105 mono_mb_emit_managed_call (mb, res, NULL);
8106 mono_mb_emit_byte (mb, CEE_RET);
8108 /* use native_wrapper_cache because internal calls are looked up there */
8109 res = mono_mb_create_and_cache (cache, method,
8110 mb, csig, csig->param_count + 1);
8118 /* exception will be thrown */
8119 piinfo->addr = NULL;
8120 g_warning ("cannot find CreateString for .ctor");
8123 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8125 mb->method->save_lmf = 1;
8128 * In AOT mode and embedding scenarios, it is possible that the icall is not
8129 * registered in the runtime doing the AOT compilation.
8131 if (!piinfo->addr && !aot) {
8132 mono_mb_emit_exception (mb, exc_class, exc_arg);
8133 csig = signature_dup (method->klass->image, sig);
8135 res = mono_mb_create_and_cache (cache, method,
8136 mb, csig, csig->param_count + 16);
8141 /* internal calls: we simply push all arguments and call the method (no conversions) */
8142 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8144 csig = signature_dup_add_this (sig, method->klass);
8146 csig = signature_dup (method->klass->image, sig);
8148 /* hack - string constructors returns a value */
8149 if (method->string_ctor)
8150 csig->ret = &mono_defaults.string_class->byval_arg;
8156 * Add a null check since public icalls can be called with 'call' which
8157 * does no such check.
8159 mono_mb_emit_byte (mb, CEE_LDARG_0);
8160 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8161 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8162 mono_mb_patch_branch (mb, pos);
8164 mono_mb_emit_byte (mb, CEE_LDARG_0);
8167 for (i = 0; i < sig->param_count; i++)
8168 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8171 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8172 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8173 mono_mb_emit_calli (mb, csig);
8175 g_assert (piinfo->addr);
8176 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8178 if (check_exceptions)
8179 emit_thread_interrupt_checkpoint (mb);
8180 mono_mb_emit_byte (mb, CEE_RET);
8182 csig = signature_dup (method->klass->image, csig);
8184 res = mono_mb_create_and_cache (cache, method,
8185 mb, csig, csig->param_count + 16);
8192 g_assert (piinfo->addr);
8194 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8195 mono_method_get_marshal_info (method, mspecs);
8197 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8199 csig = signature_dup (method->klass->image, sig);
8201 res = mono_mb_create_and_cache (cache, method,
8202 mb, csig, csig->param_count + 16);
8205 for (i = sig->param_count; i >= 0; i--)
8207 mono_metadata_free_marshal_spec (mspecs [i]);
8210 /* code_for (res); */
8216 * mono_marshal_get_native_func_wrapper:
8217 * @image: The image to use for memory allocation and for looking up custom marshallers.
8218 * @sig: The signature of the function
8219 * @func: The native function to wrap
8221 * Returns a wrapper method around native functions, similar to the pinvoke
8225 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8226 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8228 MonoMethodSignature *csig;
8230 MonoMethodBuilder *mb;
8235 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8236 if ((res = mono_marshal_find_in_cache (cache, func)))
8239 name = g_strdup_printf ("wrapper_native_%p", func);
8240 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8241 mb->method->save_lmf = 1;
8243 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8245 csig = signature_dup (image, sig);
8247 res = mono_mb_create_and_cache (cache, func,
8248 mb, csig, csig->param_count + 16);
8251 mono_marshal_set_wrapper_info (res, NULL);
8253 /* code_for (res); */
8259 * mono_marshal_emit_managed_wrapper:
8261 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8262 * the delegate which wraps the managed method to be called. For closed delegates,
8263 * it could have fewer parameters than the method it wraps.
8264 * THIS_LOC is the memory location where the target of the delegate is stored.
8267 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8269 MonoMethodSignature *sig, *csig;
8271 gboolean closed = FALSE;
8276 /* allocate local 0 (pointer) src_ptr */
8277 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8278 /* allocate local 1 (pointer) dst_ptr */
8279 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8280 /* allocate local 2 (boolean) delete_old */
8281 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8283 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8284 /* Closed delegate */
8285 g_assert (sig->param_count == invoke_sig->param_count + 1);
8287 /* Use a new signature without the first argument */
8288 sig = mono_metadata_signature_dup (sig);
8289 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8290 sig->param_count --;
8293 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8294 /* allocate local 3 to store the return value */
8295 mono_mb_add_local (mb, sig->ret);
8298 mono_mb_emit_icon (mb, 0);
8299 mono_mb_emit_stloc (mb, 2);
8301 /* we first do all conversions */
8302 tmp_locals = alloca (sizeof (int) * sig->param_count);
8303 for (i = 0; i < sig->param_count; i ++) {
8304 MonoType *t = sig->params [i];
8307 case MONO_TYPE_OBJECT:
8308 case MONO_TYPE_CLASS:
8309 case MONO_TYPE_VALUETYPE:
8310 case MONO_TYPE_ARRAY:
8311 case MONO_TYPE_SZARRAY:
8312 case MONO_TYPE_STRING:
8313 case MONO_TYPE_BOOLEAN:
8314 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8323 emit_thread_interrupt_checkpoint (mb);
8326 if (target_handle) {
8327 mono_mb_emit_icon (mb, (gint32)target_handle);
8328 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8331 g_assert_not_reached ();
8333 } else if (closed) {
8334 mono_mb_emit_icon (mb, (gint32)target_handle);
8335 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8338 for (i = 0; i < sig->param_count; i++) {
8339 MonoType *t = sig->params [i];
8341 if (tmp_locals [i]) {
8343 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8345 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8348 mono_mb_emit_ldarg (mb, i);
8351 mono_mb_emit_managed_call (mb, method, NULL);
8353 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8354 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8355 } else if (!sig->ret->byref) {
8356 switch (sig->ret->type) {
8357 case MONO_TYPE_VOID:
8359 case MONO_TYPE_BOOLEAN:
8362 case MONO_TYPE_CHAR:
8374 case MONO_TYPE_OBJECT:
8375 mono_mb_emit_stloc (mb, 3);
8377 case MONO_TYPE_STRING:
8378 csig->ret = &mono_defaults.int_class->byval_arg;
8379 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8381 case MONO_TYPE_VALUETYPE:
8382 case MONO_TYPE_CLASS:
8383 case MONO_TYPE_SZARRAY:
8384 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8387 g_warning ("return type 0x%02x unknown", sig->ret->type);
8388 g_assert_not_reached ();
8391 mono_mb_emit_stloc (mb, 3);
8394 /* Convert byref arguments back */
8395 for (i = 0; i < sig->param_count; i ++) {
8396 MonoType *t = sig->params [i];
8397 MonoMarshalSpec *spec = mspecs [i + 1];
8399 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8400 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8402 else if (t->byref) {
8404 case MONO_TYPE_CLASS:
8405 case MONO_TYPE_VALUETYPE:
8406 case MONO_TYPE_OBJECT:
8407 case MONO_TYPE_STRING:
8408 case MONO_TYPE_BOOLEAN:
8409 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8413 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8414 /* The [Out] information is encoded in the delegate signature */
8416 case MONO_TYPE_SZARRAY:
8417 case MONO_TYPE_CLASS:
8418 case MONO_TYPE_VALUETYPE:
8419 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8422 g_assert_not_reached ();
8427 if (m->retobj_var) {
8428 mono_mb_emit_ldloc (mb, m->retobj_var);
8429 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8430 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8433 if (!MONO_TYPE_IS_VOID(sig->ret))
8434 mono_mb_emit_ldloc (mb, 3);
8435 mono_mb_emit_byte (mb, CEE_RET);
8444 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8446 MonoMethodSignature *sig;
8451 * Under windows, delegates passed to native code must use the STDCALL
8452 * calling convention.
8454 csig->call_convention = MONO_CALL_STDCALL;
8457 sig = mono_method_signature (method);
8459 /* Change default calling convention if needed */
8460 /* Why is this a modopt ? */
8461 if (sig->ret && sig->ret->num_mods) {
8462 for (i = 0; i < sig->ret->num_mods; ++i) {
8463 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8464 g_assert (cmod_class);
8465 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8466 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8467 csig->call_convention = MONO_CALL_C;
8468 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8469 csig->call_convention = MONO_CALL_STDCALL;
8470 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8471 csig->call_convention = MONO_CALL_FASTCALL;
8472 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8473 csig->call_convention = MONO_CALL_THISCALL;
8480 * generates IL code to call managed methods from unmanaged code
8483 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8485 static MonoClass *UnmanagedFunctionPointerAttribute;
8486 MonoMethodSignature *sig, *csig, *invoke_sig;
8487 MonoMethodBuilder *mb;
8488 MonoMethod *res, *invoke;
8489 MonoMarshalSpec **mspecs;
8490 MonoMethodPInvoke piinfo;
8493 EmitMarshalContext m;
8495 g_assert (method != NULL);
8496 g_assert (!mono_method_signature (method)->pinvoke);
8499 * FIXME: Should cache the method+delegate type pair, since the same method
8500 * could be called with different delegates, thus different marshalling
8503 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8504 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8507 invoke = mono_get_delegate_invoke (delegate_klass);
8508 invoke_sig = mono_method_signature (invoke);
8510 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8511 mono_method_get_marshal_info (invoke, mspecs);
8513 sig = mono_method_signature (method);
8515 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8517 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8518 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8520 /* we copy the signature, so that we can modify it */
8522 /* Need to free this later */
8523 csig = mono_metadata_signature_dup (invoke_sig);
8525 csig = signature_dup (method->klass->image, invoke_sig);
8534 m.image = method->klass->image;
8536 mono_marshal_set_callconv_from_modopt (invoke, csig);
8538 /* Handle the UnmanagedFunctionPointerAttribute */
8539 if (!UnmanagedFunctionPointerAttribute)
8540 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8542 /* The attribute is only available in Net 2.0 */
8543 if (UnmanagedFunctionPointerAttribute) {
8544 MonoCustomAttrInfo *cinfo;
8545 MonoCustomAttrEntry *attr;
8548 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8549 * contents of the attribute without constructing it, as that might not be
8550 * possible when running in cross-compiling mode.
8552 cinfo = mono_custom_attrs_from_class (delegate_klass);
8555 for (i = 0; i < cinfo->num_attrs; ++i) {
8556 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8557 attr = &cinfo->attrs [i];
8563 MonoArray *typed_args, *named_args;
8564 CattrNamedArg *arginfo;
8568 MonoBoolean set_last_error = 0;
8569 MonoBoolean best_fit_mapping = 0;
8570 MonoBoolean throw_on_unmappable = 0;
8572 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8574 g_assert (mono_array_length (typed_args) == 1);
8577 o = mono_array_get (typed_args, MonoObject*, 0);
8578 call_conv = *(gint32*)mono_object_unbox (o);
8581 for (i = 0; i < mono_array_length (named_args); ++i) {
8582 CattrNamedArg *narg = &arginfo [i];
8584 o = mono_array_get (named_args, MonoObject*, i);
8586 g_assert (narg->field);
8587 if (!strcmp (narg->field->name, "CharSet")) {
8588 charset = *(gint32*)mono_object_unbox (o);
8589 } else if (!strcmp (narg->field->name, "SetLastError")) {
8590 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8591 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8592 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8593 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8594 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8596 g_assert_not_reached ();
8602 memset (&piinfo, 0, sizeof (piinfo));
8604 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8606 csig->call_convention = call_conv - 1;
8609 if (cinfo && !cinfo->cached)
8610 mono_custom_attrs_free (cinfo);
8613 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8616 res = mono_mb_create_and_cache (cache, method,
8617 mb, csig, sig->param_count + 16);
8620 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8624 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8626 mono_metadata_free_marshal_spec (mspecs [i]);
8629 /* code_for (res); */
8635 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8638 MonoMethodSignature *sig;
8639 MonoMethodBuilder *mb;
8644 method = mono_get_method (image, token, NULL);
8647 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8648 MonoMethodSignature *csig;
8649 MonoMarshalSpec **mspecs;
8650 EmitMarshalContext m;
8652 sig = mono_method_signature (method);
8653 g_assert (!sig->hasthis);
8655 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8656 mono_method_get_marshal_info (method, mspecs);
8658 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8659 csig = signature_dup (image, sig);
8670 mono_marshal_set_callconv_from_modopt (method, csig);
8672 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8674 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8677 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8680 for (i = sig->param_count; i >= 0; i--)
8682 mono_metadata_free_marshal_spec (mspecs [i]);
8685 return mono_compile_method (method);
8688 sig = mono_method_signature (method);
8689 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8691 param_count = sig->param_count + sig->hasthis;
8692 for (i = 0; i < param_count; i++)
8693 mono_mb_emit_ldarg (mb, i);
8695 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8696 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8698 mono_mb_emit_op (mb, CEE_CALL, method);
8699 mono_mb_emit_byte (mb, CEE_RET);
8702 method = mono_mb_create_method (mb, sig, param_count);
8705 return mono_compile_method (method);
8708 static MonoReflectionType *
8709 type_from_handle (MonoType *handle)
8711 MonoDomain *domain = mono_domain_get ();
8712 MonoClass *klass = mono_class_from_mono_type (handle);
8714 MONO_ARCH_SAVE_REGS;
8716 mono_class_init (klass);
8717 return mono_type_get_object (domain, handle);
8721 * mono_marshal_get_isinst:
8722 * @klass: the type of the field
8724 * This method generates a function which can be used to check if an object is
8725 * an instance of the given type, icluding the case where the object is a proxy.
8726 * The generated function has the following signature:
8727 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8730 mono_marshal_get_isinst (MonoClass *klass)
8732 static MonoMethodSignature *isint_sig = NULL;
8735 int pos_was_ok, pos_failed, pos_end, pos_end2;
8737 MonoMethodBuilder *mb;
8739 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8740 if ((res = mono_marshal_find_in_cache (cache, klass)))
8744 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8745 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8746 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8747 isint_sig->pinvoke = 0;
8750 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8751 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8754 mb->method->save_lmf = 1;
8756 /* check if the object is a proxy that needs special cast */
8757 mono_mb_emit_ldarg (mb, 0);
8758 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8759 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8761 /* The result of MONO_ISINST can be:
8762 0) the type check succeeded
8763 1) the type check did not succeed
8764 2) a CanCastTo call is needed */
8766 mono_mb_emit_byte (mb, CEE_DUP);
8767 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8769 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8770 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8772 /* get the real proxy from the transparent proxy*/
8774 mono_mb_emit_ldarg (mb, 0);
8775 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8776 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8780 mono_mb_patch_branch (mb, pos_failed);
8781 mono_mb_emit_byte (mb, CEE_LDNULL);
8782 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8786 mono_mb_patch_branch (mb, pos_was_ok);
8787 mono_mb_emit_byte (mb, CEE_POP);
8788 mono_mb_emit_ldarg (mb, 0);
8792 mono_mb_patch_branch (mb, pos_end);
8793 mono_mb_patch_branch (mb, pos_end2);
8794 mono_mb_emit_byte (mb, CEE_RET);
8796 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8803 * mono_marshal_get_castclass:
8804 * @klass: the type of the field
8806 * This method generates a function which can be used to cast an object to
8807 * an instance of the given type, icluding the case where the object is a proxy.
8808 * The generated function has the following signature:
8809 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8812 mono_marshal_get_castclass (MonoClass *klass)
8814 static MonoMethodSignature *castclass_sig = NULL;
8817 int pos_was_ok, pos_was_ok2;
8819 MonoMethodBuilder *mb;
8821 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8822 if ((res = mono_marshal_find_in_cache (cache, klass)))
8825 if (!castclass_sig) {
8826 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8827 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8828 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8829 castclass_sig->pinvoke = 0;
8832 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8833 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8836 mb->method->save_lmf = 1;
8838 /* check if the object is a proxy that needs special cast */
8839 mono_mb_emit_ldarg (mb, 0);
8840 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8841 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8843 /* The result of MONO_ISINST can be:
8844 0) the cast is valid
8845 1) cast of unknown proxy type
8846 or an exception if the cast is is invalid
8849 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8851 /* get the real proxy from the transparent proxy*/
8853 mono_mb_emit_ldarg (mb, 0);
8854 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8855 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8858 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8861 mono_mb_patch_branch (mb, pos_was_ok);
8862 mono_mb_patch_branch (mb, pos_was_ok2);
8863 mono_mb_emit_ldarg (mb, 0);
8866 mono_mb_emit_byte (mb, CEE_RET);
8868 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8875 mono_marshal_get_proxy_cancast (MonoClass *klass)
8877 static MonoMethodSignature *isint_sig = NULL;
8880 int pos_failed, pos_end;
8882 MonoMethod *can_cast_to;
8883 MonoMethodDesc *desc;
8884 MonoMethodBuilder *mb;
8886 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8887 if ((res = mono_marshal_find_in_cache (cache, klass)))
8891 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8892 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8893 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8894 isint_sig->pinvoke = 0;
8897 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8898 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8901 mb->method->save_lmf = 1;
8903 /* get the real proxy from the transparent proxy*/
8904 mono_mb_emit_ldarg (mb, 0);
8905 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8906 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8908 /* get the reflection type from the type handle */
8909 mono_mb_emit_ptr (mb, &klass->byval_arg);
8910 mono_mb_emit_icall (mb, type_from_handle);
8912 mono_mb_emit_ldarg (mb, 0);
8914 /* make the call to CanCastTo (type, ob) */
8915 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8916 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8917 g_assert (can_cast_to);
8918 mono_method_desc_free (desc);
8919 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8921 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8923 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8924 mono_mb_emit_ptr (mb, &klass->byval_arg);
8925 mono_mb_emit_icall (mb, type_from_handle);
8926 mono_mb_emit_ldarg (mb, 0);
8928 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8929 emit_thread_interrupt_checkpoint (mb);
8931 mono_mb_emit_ldarg (mb, 0);
8932 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8936 mono_mb_patch_branch (mb, pos_failed);
8937 mono_mb_emit_byte (mb, CEE_LDNULL);
8941 mono_mb_patch_branch (mb, pos_end);
8942 mono_mb_emit_byte (mb, CEE_RET);
8944 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8951 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8954 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8955 klass = mono_class_from_mono_type (rtype->type);
8956 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8960 * mono_marshal_get_struct_to_ptr:
8963 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8966 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8968 MonoMethodBuilder *mb;
8969 static MonoMethod *stoptr = NULL;
8972 g_assert (klass != NULL);
8974 mono_marshal_load_type_info (klass);
8976 if (klass->marshal_info->str_to_ptr)
8977 return klass->marshal_info->str_to_ptr;
8980 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8983 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8985 if (klass->blittable) {
8986 mono_mb_emit_byte (mb, CEE_LDARG_1);
8987 mono_mb_emit_byte (mb, CEE_LDARG_0);
8988 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8989 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8990 mono_mb_emit_byte (mb, CEE_PREFIX1);
8991 mono_mb_emit_byte (mb, CEE_CPBLK);
8994 /* allocate local 0 (pointer) src_ptr */
8995 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8996 /* allocate local 1 (pointer) dst_ptr */
8997 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8998 /* allocate local 2 (boolean) delete_old */
8999 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9000 mono_mb_emit_byte (mb, CEE_LDARG_2);
9001 mono_mb_emit_stloc (mb, 2);
9003 /* initialize src_ptr to point to the start of object data */
9004 mono_mb_emit_byte (mb, CEE_LDARG_0);
9005 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9006 mono_mb_emit_stloc (mb, 0);
9008 /* initialize dst_ptr */
9009 mono_mb_emit_byte (mb, CEE_LDARG_1);
9010 mono_mb_emit_stloc (mb, 1);
9012 emit_struct_conv (mb, klass, FALSE);
9015 mono_mb_emit_byte (mb, CEE_RET);
9017 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9020 klass->marshal_info->str_to_ptr = res;
9025 * mono_marshal_get_ptr_to_struct:
9028 * generates IL code for PtrToStructure (IntPtr src, object structure)
9031 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9033 MonoMethodBuilder *mb;
9034 static MonoMethodSignature *ptostr = NULL;
9037 g_assert (klass != NULL);
9039 mono_marshal_load_type_info (klass);
9041 if (klass->marshal_info->ptr_to_str)
9042 return klass->marshal_info->ptr_to_str;
9045 MonoMethodSignature *sig;
9047 /* Create the signature corresponding to
9048 static void PtrToStructure (IntPtr ptr, object structure);
9049 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9050 sig = mono_create_icall_signature ("void ptr object");
9051 sig = signature_dup (mono_defaults.corlib, sig);
9053 mono_memory_barrier ();
9057 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9059 if (klass->blittable) {
9060 mono_mb_emit_byte (mb, CEE_LDARG_1);
9061 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9062 mono_mb_emit_byte (mb, CEE_LDARG_0);
9063 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9064 mono_mb_emit_byte (mb, CEE_PREFIX1);
9065 mono_mb_emit_byte (mb, CEE_CPBLK);
9068 /* allocate local 0 (pointer) src_ptr */
9069 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9070 /* allocate local 1 (pointer) dst_ptr */
9071 mono_mb_add_local (mb, &klass->this_arg);
9073 /* initialize src_ptr to point to the start of object data */
9074 mono_mb_emit_byte (mb, CEE_LDARG_0);
9075 mono_mb_emit_stloc (mb, 0);
9077 /* initialize dst_ptr */
9078 mono_mb_emit_byte (mb, CEE_LDARG_1);
9079 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9080 mono_mb_emit_stloc (mb, 1);
9082 emit_struct_conv (mb, klass, TRUE);
9085 mono_mb_emit_byte (mb, CEE_RET);
9087 res = mono_mb_create_method (mb, ptostr, 0);
9090 klass->marshal_info->ptr_to_str = res;
9095 * generates IL code for the synchronized wrapper: the generated method
9096 * calls METHOD while locking 'this' or the parent type.
9099 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9101 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9102 MonoMethodSignature *sig;
9103 MonoExceptionClause *clause;
9104 MonoMethodBuilder *mb;
9107 int i, pos, this_local, ret_local = 0;
9111 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9114 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9115 if ((res = mono_marshal_find_in_cache (cache, method)))
9118 sig = signature_dup (method->klass->image, mono_method_signature (method));
9121 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9124 if (!MONO_TYPE_IS_VOID (sig->ret))
9125 ret_local = mono_mb_add_local (mb, sig->ret);
9127 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9128 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9129 /* This will throw the type load exception when the wrapper is compiled */
9130 mono_mb_emit_byte (mb, CEE_LDNULL);
9131 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9132 mono_mb_emit_byte (mb, CEE_POP);
9134 if (!MONO_TYPE_IS_VOID (sig->ret))
9135 mono_mb_emit_ldloc (mb, ret_local);
9136 mono_mb_emit_byte (mb, CEE_RET);
9138 res = mono_mb_create_and_cache (cache, method,
9139 mb, sig, sig->param_count + 16);
9146 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9148 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9149 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9151 mono_loader_lock ();
9153 if (!enter_method) {
9154 MonoMethodDesc *desc;
9156 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9157 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9158 g_assert (enter_method);
9159 mono_method_desc_free (desc);
9161 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9162 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9163 g_assert (exit_method);
9164 mono_method_desc_free (desc);
9166 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9167 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9168 g_assert (gettypefromhandle_method);
9169 mono_method_desc_free (desc);
9172 mono_loader_unlock ();
9174 /* Push this or the type object */
9175 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9176 /* We have special handling for this in the JIT */
9177 int index = mono_mb_add_data (mb, method->klass);
9178 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9179 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9180 mono_mb_emit_i4 (mb, index);
9182 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9185 mono_mb_emit_ldarg (mb, 0);
9186 mono_mb_emit_stloc (mb, this_local);
9188 /* Call Monitor::Enter() */
9189 mono_mb_emit_ldloc (mb, this_local);
9190 mono_mb_emit_managed_call (mb, enter_method, NULL);
9192 clause->try_offset = mono_mb_get_label (mb);
9194 /* Call the method */
9196 mono_mb_emit_ldarg (mb, 0);
9197 for (i = 0; i < sig->param_count; i++)
9198 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9200 mono_mb_emit_managed_call (mb, method, NULL);
9202 if (!MONO_TYPE_IS_VOID (sig->ret))
9203 mono_mb_emit_stloc (mb, ret_local);
9205 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9207 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9208 clause->handler_offset = mono_mb_get_label (mb);
9210 /* Call Monitor::Exit() */
9211 mono_mb_emit_ldloc (mb, this_local);
9212 mono_mb_emit_managed_call (mb, exit_method, NULL);
9213 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9215 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9217 mono_mb_patch_branch (mb, pos);
9218 if (!MONO_TYPE_IS_VOID (sig->ret))
9219 mono_mb_emit_ldloc (mb, ret_local);
9220 mono_mb_emit_byte (mb, CEE_RET);
9222 mono_mb_set_clauses (mb, 1, clause);
9224 res = mono_mb_create_and_cache (cache, method,
9225 mb, sig, sig->param_count + 16);
9233 * the returned method calls 'method' unboxing the this argument
9236 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9238 MonoMethodSignature *sig = mono_method_signature (method);
9240 MonoMethodBuilder *mb;
9244 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9245 if ((res = mono_marshal_find_in_cache (cache, method)))
9248 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9250 g_assert (sig->hasthis);
9252 mono_mb_emit_ldarg (mb, 0);
9253 mono_mb_emit_icon (mb, sizeof (MonoObject));
9254 mono_mb_emit_byte (mb, CEE_ADD);
9255 for (i = 0; i < sig->param_count; ++i)
9256 mono_mb_emit_ldarg (mb, i + 1);
9257 mono_mb_emit_managed_call (mb, method, NULL);
9258 mono_mb_emit_byte (mb, CEE_RET);
9260 res = mono_mb_create_and_cache (cache, method,
9261 mb, sig, sig->param_count + 16);
9264 /* code_for (res); */
9270 mono_marshal_get_stelemref ()
9272 static MonoMethod* ret = NULL;
9273 MonoMethodSignature *sig;
9274 MonoMethodBuilder *mb;
9276 guint32 b1, b2, b3, b4;
9279 int array_slot_addr;
9284 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9287 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9289 /* void stelemref (void* array, int idx, void* value) */
9290 sig->ret = &mono_defaults.void_class->byval_arg;
9291 sig->params [0] = &mono_defaults.object_class->byval_arg;
9292 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9293 sig->params [2] = &mono_defaults.object_class->byval_arg;
9295 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9296 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9297 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9301 <ldelema (bound check)>
9305 aklass = array->vtable->klass->element_class;
9306 vklass = value->vtable->klass;
9308 if (vklass->idepth < aklass->idepth)
9311 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9315 *array_slot_addr = value;
9319 if (mono_object_isinst (value, aklass))
9322 throw new ArrayTypeMismatchException ();
9325 /* ldelema (implicit bound check) */
9326 mono_mb_emit_ldarg (mb, 0);
9327 mono_mb_emit_ldarg (mb, 1);
9328 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9329 mono_mb_emit_stloc (mb, array_slot_addr);
9331 /* if (!value) goto do_store */
9332 mono_mb_emit_ldarg (mb, 2);
9333 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9335 /* aklass = array->vtable->klass->element_class */
9336 mono_mb_emit_ldarg (mb, 0);
9337 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9338 mono_mb_emit_byte (mb, CEE_LDIND_I);
9339 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9340 mono_mb_emit_byte (mb, CEE_LDIND_I);
9341 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9342 mono_mb_emit_byte (mb, CEE_LDIND_I);
9343 mono_mb_emit_stloc (mb, aklass);
9345 /* vklass = value->vtable->klass */
9346 mono_mb_emit_ldarg (mb, 2);
9347 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9348 mono_mb_emit_byte (mb, CEE_LDIND_I);
9349 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9350 mono_mb_emit_byte (mb, CEE_LDIND_I);
9351 mono_mb_emit_stloc (mb, vklass);
9353 /* if (vklass->idepth < aklass->idepth) goto failue */
9354 mono_mb_emit_ldloc (mb, vklass);
9355 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9356 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9358 mono_mb_emit_ldloc (mb, aklass);
9359 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9360 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9362 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9364 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9365 mono_mb_emit_ldloc (mb, vklass);
9366 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9367 mono_mb_emit_byte (mb, CEE_LDIND_I);
9369 mono_mb_emit_ldloc (mb, aklass);
9370 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9371 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9372 mono_mb_emit_icon (mb, 1);
9373 mono_mb_emit_byte (mb, CEE_SUB);
9374 mono_mb_emit_icon (mb, sizeof (void*));
9375 mono_mb_emit_byte (mb, CEE_MUL);
9376 mono_mb_emit_byte (mb, CEE_ADD);
9377 mono_mb_emit_byte (mb, CEE_LDIND_I);
9379 mono_mb_emit_ldloc (mb, aklass);
9381 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9383 copy_pos = mono_mb_get_label (mb);
9385 mono_mb_patch_branch (mb, b1);
9386 mono_mb_emit_ldloc (mb, array_slot_addr);
9387 mono_mb_emit_ldarg (mb, 2);
9388 mono_mb_emit_byte (mb, CEE_STIND_REF);
9390 mono_mb_emit_byte (mb, CEE_RET);
9393 mono_mb_patch_branch (mb, b2);
9394 mono_mb_patch_branch (mb, b3);
9396 mono_mb_emit_ldarg (mb, 2);
9397 mono_mb_emit_ldloc (mb, aklass);
9398 mono_mb_emit_icall (mb, mono_object_isinst);
9400 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9401 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9402 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9404 mono_mb_emit_byte (mb, CEE_RET);
9405 ret = mono_mb_create_method (mb, sig, 4);
9416 /* LOCKING: vars accessed under the marshal lock */
9417 static ArrayElemAddr *elem_addr_cache = NULL;
9418 static int elem_addr_cache_size = 0;
9419 static int elem_addr_cache_next = 0;
9422 * mono_marshal_get_array_address:
9423 * @rank: rank of the array type
9424 * @elem_size: size in bytes of an element of an array.
9426 * Returns a MonoMethd that implements the code to get the address
9427 * of an element in a multi-dimenasional array of @rank dimensions.
9428 * The returned method takes an array as the first argument and then
9429 * @rank indexes for the @rank dimensions.
9432 mono_marshal_get_array_address (int rank, int elem_size)
9435 MonoMethodBuilder *mb;
9436 MonoMethodSignature *sig;
9437 int i, bounds, ind, realidx;
9438 int branch_pos, *branch_positions;
9442 mono_marshal_lock ();
9443 for (i = 0; i < elem_addr_cache_next; ++i) {
9444 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9445 ret = elem_addr_cache [i].method;
9449 mono_marshal_unlock ();
9453 branch_positions = g_new0 (int, rank);
9455 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9457 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9458 sig->ret = &mono_defaults.int_class->byval_arg;
9459 sig->params [0] = &mono_defaults.object_class->byval_arg;
9460 for (i = 0; i < rank; ++i) {
9461 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9464 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9466 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9467 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9468 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9470 /* bounds = array->bounds; */
9471 mono_mb_emit_ldarg (mb, 0);
9472 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9473 mono_mb_emit_byte (mb, CEE_LDIND_I);
9474 mono_mb_emit_stloc (mb, bounds);
9476 /* ind is the overall element index, realidx is the partial index in a single dimension */
9477 /* ind = idx0 - bounds [0].lower_bound */
9478 mono_mb_emit_ldarg (mb, 1);
9479 mono_mb_emit_ldloc (mb, bounds);
9480 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9481 mono_mb_emit_byte (mb, CEE_ADD);
9482 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9483 mono_mb_emit_byte (mb, CEE_SUB);
9484 mono_mb_emit_stloc (mb, ind);
9485 /* if (ind >= bounds [0].length) goto exeception; */
9486 mono_mb_emit_ldloc (mb, ind);
9487 mono_mb_emit_ldloc (mb, bounds);
9488 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9489 mono_mb_emit_byte (mb, CEE_ADD);
9490 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9491 /* note that we use unsigned comparison */
9492 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9494 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9495 * We could also decide to ignore the passed elem_size and get it
9496 * from the array object, to reduce the number of methods we generate:
9497 * the additional cost is 3 memory loads and a non-immediate mul.
9499 for (i = 1; i < rank; ++i) {
9500 /* realidx = idxi - bounds [i].lower_bound */
9501 mono_mb_emit_ldarg (mb, 1 + i);
9502 mono_mb_emit_ldloc (mb, bounds);
9503 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9504 mono_mb_emit_byte (mb, CEE_ADD);
9505 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9506 mono_mb_emit_byte (mb, CEE_SUB);
9507 mono_mb_emit_stloc (mb, realidx);
9508 /* if (realidx >= bounds [i].length) goto exeception; */
9509 mono_mb_emit_ldloc (mb, realidx);
9510 mono_mb_emit_ldloc (mb, bounds);
9511 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9512 mono_mb_emit_byte (mb, CEE_ADD);
9513 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9514 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9515 /* ind = ind * bounds [i].length + realidx */
9516 mono_mb_emit_ldloc (mb, ind);
9517 mono_mb_emit_ldloc (mb, bounds);
9518 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9519 mono_mb_emit_byte (mb, CEE_ADD);
9520 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9521 mono_mb_emit_byte (mb, CEE_MUL);
9522 mono_mb_emit_ldloc (mb, realidx);
9523 mono_mb_emit_byte (mb, CEE_ADD);
9524 mono_mb_emit_stloc (mb, ind);
9527 /* return array->vector + ind * element_size */
9528 mono_mb_emit_ldarg (mb, 0);
9529 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9530 mono_mb_emit_ldloc (mb, ind);
9531 mono_mb_emit_icon (mb, elem_size);
9532 mono_mb_emit_byte (mb, CEE_MUL);
9533 mono_mb_emit_byte (mb, CEE_ADD);
9534 mono_mb_emit_byte (mb, CEE_RET);
9536 /* patch the branches to get here and throw */
9537 for (i = 1; i < rank; ++i) {
9538 mono_mb_patch_branch (mb, branch_positions [i]);
9540 mono_mb_patch_branch (mb, branch_pos);
9541 /* throw exception */
9542 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9544 g_free (branch_positions);
9545 ret = mono_mb_create_method (mb, sig, 4);
9548 /* cache the result */
9550 mono_marshal_lock ();
9551 for (i = 0; i < elem_addr_cache_next; ++i) {
9552 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9553 /* FIXME: free ret */
9554 ret = elem_addr_cache [i].method;
9560 ElementAddrWrapperInfo *info;
9562 if (elem_addr_cache_next >= elem_addr_cache_size) {
9563 int new_size = elem_addr_cache_size + 4;
9564 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9565 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9566 g_free (elem_addr_cache);
9567 elem_addr_cache = new_array;
9568 elem_addr_cache_size = new_size;
9570 elem_addr_cache [elem_addr_cache_next].rank = rank;
9571 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9572 elem_addr_cache [elem_addr_cache_next].method = ret;
9574 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
9576 info->elem_size = elem_size;
9578 mono_marshal_set_wrapper_info (ret, info);
9580 mono_marshal_unlock ();
9585 mono_marshal_alloc (gulong size)
9590 res = CoTaskMemAlloc (size);
9592 res = g_try_malloc ((gulong)size);
9594 mono_gc_out_of_memory ((gulong)size);
9600 mono_marshal_free (gpointer ptr)
9603 CoTaskMemFree (ptr);
9610 mono_marshal_free_array (gpointer *ptr, int size)
9617 for (i = 0; i < size; i++)
9623 mono_marshal_string_to_utf16 (MonoString *s)
9625 return s ? mono_string_chars (s) : NULL;
9629 mono_marshal_string_to_utf16_copy (MonoString *s)
9634 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9635 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9636 res [mono_string_length (s)] = 0;
9642 * mono_marshal_set_last_error:
9644 * This function is invoked to set the last error value from a P/Invoke call
9645 * which has SetLastError set.
9648 mono_marshal_set_last_error (void)
9651 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9653 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9658 mono_marshal_set_last_error_windows (int error)
9661 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9666 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9667 gpointer dest, gint32 length)
9672 MONO_ARCH_SAVE_REGS;
9674 MONO_CHECK_ARG_NULL (src);
9675 MONO_CHECK_ARG_NULL (dest);
9677 if (src->obj.vtable->klass->rank != 1)
9678 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9679 if (start_index < 0)
9680 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9682 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9683 if (start_index + length > mono_array_length (src))
9684 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9686 element_size = mono_array_element_size (src->obj.vtable->klass);
9688 /* no references should be involved */
9689 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9691 memcpy (dest, source_addr, length * element_size);
9695 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9696 MonoArray *dest, gint32 length)
9701 MONO_ARCH_SAVE_REGS;
9703 MONO_CHECK_ARG_NULL (src);
9704 MONO_CHECK_ARG_NULL (dest);
9706 if (dest->obj.vtable->klass->rank != 1)
9707 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9708 if (start_index < 0)
9709 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9711 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9712 if (start_index + length > mono_array_length (dest))
9713 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9715 element_size = mono_array_element_size (dest->obj.vtable->klass);
9717 /* no references should be involved */
9718 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9720 memcpy (dest_addr, src, length * element_size);
9723 #if NO_UNALIGNED_ACCESS
9724 #define RETURN_UNALIGNED(type, addr) \
9727 memcpy(&val, p + offset, sizeof(val)); \
9730 #define WRITE_UNALIGNED(type, addr, val) \
9731 memcpy(addr, &val, sizeof(type))
9733 #define RETURN_UNALIGNED(type, addr) \
9734 return *(type*)(p + offset);
9735 #define WRITE_UNALIGNED(type, addr, val) \
9736 (*(type *)(addr) = (val))
9740 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9744 MONO_ARCH_SAVE_REGS;
9746 RETURN_UNALIGNED(gpointer, p + offset);
9750 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9754 MONO_ARCH_SAVE_REGS;
9756 return *(unsigned char*)(p + offset);
9760 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9764 MONO_ARCH_SAVE_REGS;
9766 RETURN_UNALIGNED(gint16, p + offset);
9770 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9774 MONO_ARCH_SAVE_REGS;
9776 RETURN_UNALIGNED(gint32, p + offset);
9780 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9784 MONO_ARCH_SAVE_REGS;
9786 RETURN_UNALIGNED(gint64, p + offset);
9790 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9794 MONO_ARCH_SAVE_REGS;
9796 *(unsigned char*)(p + offset) = val;
9800 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9804 MONO_ARCH_SAVE_REGS;
9806 WRITE_UNALIGNED(gpointer, p + offset, val);
9810 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9814 MONO_ARCH_SAVE_REGS;
9816 WRITE_UNALIGNED(gint16, p + offset, val);
9820 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9824 MONO_ARCH_SAVE_REGS;
9826 WRITE_UNALIGNED(gint32, p + offset, val);
9830 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9834 MONO_ARCH_SAVE_REGS;
9836 WRITE_UNALIGNED(gint64, p + offset, val);
9840 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9842 MONO_ARCH_SAVE_REGS;
9847 return mono_string_new (mono_domain_get (), ptr);
9851 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9853 MONO_ARCH_SAVE_REGS;
9856 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9857 g_assert_not_reached ();
9860 return mono_string_new_len (mono_domain_get (), ptr, len);
9865 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9867 MonoDomain *domain = mono_domain_get ();
9871 MONO_ARCH_SAVE_REGS;
9879 return mono_string_new_utf16 (domain, ptr, len);
9883 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9885 MonoDomain *domain = mono_domain_get ();
9887 MONO_ARCH_SAVE_REGS;
9890 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9891 g_assert_not_reached ();
9894 return mono_string_new_utf16 (domain, ptr, len);
9899 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9901 MONO_ARCH_SAVE_REGS;
9903 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9907 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9913 MONO_ARCH_SAVE_REGS;
9915 MONO_CHECK_ARG_NULL (rtype);
9918 klass = mono_class_from_mono_type (type);
9919 if (!mono_class_init (klass))
9920 mono_raise_exception (mono_class_get_exception_for_failure (klass));
9922 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9924 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9928 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9929 exc = mono_get_exception_argument ("t", msg);
9931 mono_raise_exception (exc);
9935 return mono_class_native_size (klass, NULL);
9939 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9944 MONO_ARCH_SAVE_REGS;
9946 MONO_CHECK_ARG_NULL (obj);
9947 MONO_CHECK_ARG_NULL (dst);
9949 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9953 pa [2] = &delete_old;
9955 mono_runtime_invoke (method, NULL, pa, NULL);
9959 ptr_to_structure (gpointer src, MonoObject *dst)
9964 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9969 mono_runtime_invoke (method, NULL, pa, NULL);
9973 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9977 MONO_ARCH_SAVE_REGS;
9979 MONO_CHECK_ARG_NULL (src);
9980 MONO_CHECK_ARG_NULL (dst);
9982 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9984 if (t->type == MONO_TYPE_VALUETYPE) {
9988 tmp = g_strdup_printf ("Destination is a boxed value type.");
9989 exc = mono_get_exception_argument ("dst", tmp);
9992 mono_raise_exception (exc);
9996 ptr_to_structure (src, dst);
10000 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10003 MonoDomain *domain = mono_domain_get ();
10006 MONO_ARCH_SAVE_REGS;
10008 MONO_CHECK_ARG_NULL (src);
10009 MONO_CHECK_ARG_NULL (type);
10011 klass = mono_class_from_mono_type (type->type);
10012 if (!mono_class_init (klass))
10013 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10015 res = mono_object_new (domain, klass);
10017 ptr_to_structure (src, res);
10023 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10025 MonoMarshalType *info;
10028 int match_index = -1;
10030 MONO_ARCH_SAVE_REGS;
10032 MONO_CHECK_ARG_NULL (type);
10033 MONO_CHECK_ARG_NULL (field_name);
10035 fname = mono_string_to_utf8 (field_name);
10036 klass = mono_class_from_mono_type (type->type);
10037 if (!mono_class_init (klass))
10038 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10040 while (klass && match_index == -1) {
10041 MonoClassField* field;
10043 gpointer iter = NULL;
10044 while ((field = mono_class_get_fields (klass, &iter))) {
10045 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10047 if (!strcmp (fname, mono_field_get_name (field))) {
10054 if (match_index == -1)
10055 klass = klass->parent;
10060 if(match_index == -1) {
10061 MonoException* exc;
10064 /* Get back original class instance */
10065 klass = mono_class_from_mono_type (type->type);
10067 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10068 exc = mono_get_exception_argument ("fieldName", tmp);
10071 mono_raise_exception ((MonoException*)exc);
10074 info = mono_marshal_load_type_info (klass);
10075 return info->fields [match_index].offset;
10079 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10084 tres = mono_string_to_utf8 (string);
10088 len = strlen (tres) + 1;
10089 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10090 memcpy (ret, tres, len);
10095 return mono_string_to_utf8 (string);
10100 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10102 MONO_ARCH_SAVE_REGS;
10104 if (string == NULL)
10107 #ifdef TARGET_WIN32
10108 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10109 ((mono_string_length (string) + 1) * 2);
10111 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10113 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10114 res [mono_string_length (string)] = 0;
10120 mono_struct_delete_old (MonoClass *klass, char *ptr)
10122 MonoMarshalType *info;
10125 info = mono_marshal_load_type_info (klass);
10127 for (i = 0; i < info->num_fields; i++) {
10128 MonoMarshalNative ntype;
10129 MonoMarshalConv conv;
10130 MonoType *ftype = info->fields [i].field->type;
10133 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10136 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10137 klass->unicode, &conv);
10139 cpos = ptr + info->fields [i].offset;
10142 case MONO_MARSHAL_CONV_NONE:
10143 if (MONO_TYPE_ISSTRUCT (ftype)) {
10144 mono_struct_delete_old (ftype->data.klass, cpos);
10148 case MONO_MARSHAL_CONV_STR_LPWSTR:
10149 /* We assume this field points inside a MonoString */
10151 case MONO_MARSHAL_CONV_STR_LPTSTR:
10152 #ifdef TARGET_WIN32
10153 /* We assume this field points inside a MonoString
10157 case MONO_MARSHAL_CONV_STR_LPSTR:
10158 case MONO_MARSHAL_CONV_STR_BSTR:
10159 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10160 case MONO_MARSHAL_CONV_STR_TBSTR:
10161 mono_marshal_free (*(gpointer *)cpos);
10171 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10175 MONO_ARCH_SAVE_REGS;
10177 MONO_CHECK_ARG_NULL (src);
10178 MONO_CHECK_ARG_NULL (type);
10180 klass = mono_class_from_mono_type (type->type);
10181 if (!mono_class_init (klass))
10182 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10184 mono_struct_delete_old (klass, (char *)src);
10188 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10192 MONO_ARCH_SAVE_REGS;
10194 if ((gulong)size == 0)
10195 /* This returns a valid pointer for size 0 on MS.NET */
10199 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10201 res = g_try_malloc ((gulong)size);
10204 mono_gc_out_of_memory ((gulong)size);
10210 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10215 mono_gc_out_of_memory ((gulong)size);
10220 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10222 res = g_try_realloc (ptr, (gulong)size);
10225 mono_gc_out_of_memory ((gulong)size);
10231 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10233 MONO_ARCH_SAVE_REGS;
10243 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10245 MONO_ARCH_SAVE_REGS;
10248 return CoTaskMemAlloc (size);
10250 return g_try_malloc ((gulong)size);
10255 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10257 MONO_ARCH_SAVE_REGS;
10260 CoTaskMemFree (ptr);
10267 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10269 MONO_ARCH_SAVE_REGS;
10272 return CoTaskMemRealloc (ptr, size);
10274 return g_try_realloc (ptr, (gulong)size);
10279 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10281 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10285 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10287 MonoClass *klass = mono_type_get_class (type->type);
10288 if (!mono_class_init (klass))
10289 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10291 return mono_ftnptr_to_delegate (klass, ftn);
10295 * mono_marshal_is_loading_type_info:
10297 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10301 mono_marshal_is_loading_type_info (MonoClass *klass)
10303 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10305 return g_slist_find (loads_list, klass) != NULL;
10309 * mono_marshal_load_type_info:
10311 * Initialize klass->marshal_info using information from metadata. This function can
10312 * recursively call itself, and the caller is responsible to avoid that by calling
10313 * mono_marshal_is_loading_type_info () beforehand.
10315 * LOCKING: Acquires the loader lock.
10318 mono_marshal_load_type_info (MonoClass* klass)
10321 guint32 native_size = 0, min_align = 1;
10322 MonoMarshalType *info;
10323 MonoClassField* field;
10326 GSList *loads_list;
10328 g_assert (klass != NULL);
10330 if (klass->marshal_info)
10331 return klass->marshal_info;
10333 if (!klass->inited)
10334 mono_class_init (klass);
10336 mono_loader_lock ();
10338 if (klass->marshal_info) {
10339 mono_loader_unlock ();
10340 return klass->marshal_info;
10344 * This function can recursively call itself, so we keep the list of classes which are
10345 * under initialization in a TLS list.
10347 g_assert (!mono_marshal_is_loading_type_info (klass));
10348 loads_list = TlsGetValue (load_type_info_tls_id);
10349 loads_list = g_slist_prepend (loads_list, klass);
10350 TlsSetValue (load_type_info_tls_id, loads_list);
10353 while ((field = mono_class_get_fields (klass, &iter))) {
10354 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10356 if (mono_field_is_deleted (field))
10361 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10363 /* The mempool is protected by the loader lock */
10364 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10365 info->num_fields = count;
10367 /* Try to find a size for this type in metadata */
10368 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10370 if (klass->parent) {
10371 int parent_size = mono_class_native_size (klass->parent, NULL);
10373 /* Add parent size to real size */
10374 native_size += parent_size;
10375 info->native_size = parent_size;
10380 while ((field = mono_class_get_fields (klass, &iter))) {
10384 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10387 if (mono_field_is_deleted (field))
10389 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10390 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10391 NULL, NULL, &info->fields [j].mspec);
10393 info->fields [j].field = field;
10395 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10396 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10397 /* This field is a hack inserted by MCS to empty structures */
10402 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10403 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10404 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10405 &align, TRUE, klass->unicode);
10406 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10407 min_align = MAX (align, min_align);
10408 info->fields [j].offset = info->native_size;
10409 info->fields [j].offset += align - 1;
10410 info->fields [j].offset &= ~(align - 1);
10411 info->native_size = info->fields [j].offset + size;
10413 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10414 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10415 &align, TRUE, klass->unicode);
10416 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10417 min_align = MAX (align, min_align);
10418 info->fields [j].offset = field->offset - sizeof (MonoObject);
10419 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10425 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10426 info->native_size = MAX (native_size, info->native_size);
10429 if (info->native_size & (min_align - 1)) {
10430 info->native_size += min_align - 1;
10431 info->native_size &= ~(min_align - 1);
10434 info->min_align = min_align;
10436 /* Update the class's blittable info, if the layouts don't match */
10437 if (info->native_size != mono_class_value_size (klass, NULL))
10438 klass->blittable = FALSE;
10440 /* If this is an array type, ensure that we have element info */
10441 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10442 mono_marshal_load_type_info (klass->element_class);
10445 loads_list = TlsGetValue (load_type_info_tls_id);
10446 loads_list = g_slist_remove (loads_list, klass);
10447 TlsSetValue (load_type_info_tls_id, loads_list);
10449 /*We do double-checking locking on marshal_info */
10450 mono_memory_barrier ();
10452 klass->marshal_info = info;
10454 mono_loader_unlock ();
10456 return klass->marshal_info;
10460 * mono_class_native_size:
10463 * Returns: the native size of an object instance (when marshaled
10464 * to unmanaged code)
10467 mono_class_native_size (MonoClass *klass, guint32 *align)
10469 if (!klass->marshal_info) {
10470 if (mono_marshal_is_loading_type_info (klass)) {
10475 mono_marshal_load_type_info (klass);
10480 *align = klass->marshal_info->min_align;
10482 return klass->marshal_info->native_size;
10485 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10486 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10487 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10488 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10491 * mono_type_native_stack_size:
10492 * @t: the type to return the size it uses on the stack
10494 * Returns: the number of bytes required to hold an instance of this
10495 * type on the native stack
10498 mono_type_native_stack_size (MonoType *t, guint32 *align)
10502 g_assert (t != NULL);
10508 *align = sizeof (gpointer);
10509 return sizeof (gpointer);
10513 case MONO_TYPE_BOOLEAN:
10514 case MONO_TYPE_CHAR:
10525 case MONO_TYPE_STRING:
10526 case MONO_TYPE_OBJECT:
10527 case MONO_TYPE_CLASS:
10528 case MONO_TYPE_SZARRAY:
10529 case MONO_TYPE_PTR:
10530 case MONO_TYPE_FNPTR:
10531 case MONO_TYPE_ARRAY:
10532 *align = sizeof (gpointer);
10533 return sizeof (gpointer);
10538 *align = ALIGNMENT (gdouble);
10542 *align = ALIGNMENT (glong);
10544 case MONO_TYPE_GENERICINST:
10545 if (!mono_type_generic_inst_is_valuetype (t)) {
10546 *align = sizeof (gpointer);
10547 return sizeof (gpointer);
10550 case MONO_TYPE_TYPEDBYREF:
10551 case MONO_TYPE_VALUETYPE: {
10553 MonoClass *klass = mono_class_from_mono_type (t);
10555 if (klass->enumtype)
10556 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10558 size = mono_class_native_size (klass, align);
10559 *align = *align + 3;
10569 g_error ("type 0x%02x unknown", t->type);
10575 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10576 gboolean as_field, gboolean unicode)
10578 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10581 switch (native_type) {
10582 case MONO_NATIVE_BOOLEAN:
10585 case MONO_NATIVE_I1:
10586 case MONO_NATIVE_U1:
10589 case MONO_NATIVE_I2:
10590 case MONO_NATIVE_U2:
10591 case MONO_NATIVE_VARIANTBOOL:
10594 case MONO_NATIVE_I4:
10595 case MONO_NATIVE_U4:
10596 case MONO_NATIVE_ERROR:
10599 case MONO_NATIVE_I8:
10600 case MONO_NATIVE_U8:
10601 *align = ALIGNMENT(guint64);
10603 case MONO_NATIVE_R4:
10606 case MONO_NATIVE_R8:
10607 *align = ALIGNMENT(double);
10609 case MONO_NATIVE_INT:
10610 case MONO_NATIVE_UINT:
10611 case MONO_NATIVE_LPSTR:
10612 case MONO_NATIVE_LPWSTR:
10613 case MONO_NATIVE_LPTSTR:
10614 case MONO_NATIVE_BSTR:
10615 case MONO_NATIVE_ANSIBSTR:
10616 case MONO_NATIVE_TBSTR:
10617 case MONO_NATIVE_LPARRAY:
10618 case MONO_NATIVE_SAFEARRAY:
10619 case MONO_NATIVE_IUNKNOWN:
10620 case MONO_NATIVE_IDISPATCH:
10621 case MONO_NATIVE_INTERFACE:
10622 case MONO_NATIVE_ASANY:
10623 case MONO_NATIVE_FUNC:
10624 case MONO_NATIVE_LPSTRUCT:
10625 *align = ALIGNMENT(gpointer);
10626 return sizeof (gpointer);
10627 case MONO_NATIVE_STRUCT:
10628 klass = mono_class_from_mono_type (type);
10629 if (klass == mono_defaults.object_class &&
10630 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10634 return mono_class_native_size (klass, align);
10635 case MONO_NATIVE_BYVALTSTR: {
10636 int esize = unicode ? 2: 1;
10639 return mspec->data.array_data.num_elem * esize;
10641 case MONO_NATIVE_BYVALARRAY: {
10642 // FIXME: Have to consider ArraySubType
10644 klass = mono_class_from_mono_type (type);
10645 if (klass->element_class == mono_defaults.char_class) {
10646 esize = unicode ? 2 : 1;
10649 esize = mono_class_native_size (klass->element_class, align);
10652 return mspec->data.array_data.num_elem * esize;
10654 case MONO_NATIVE_CUSTOM:
10655 *align = sizeof (gpointer);
10656 return sizeof (gpointer);
10658 case MONO_NATIVE_CURRENCY:
10659 case MONO_NATIVE_VBBYREFSTR:
10661 g_error ("native type %02x not implemented", native_type);
10664 g_assert_not_reached ();
10669 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10677 t = &o->vtable->klass->byval_arg;
10681 case MONO_TYPE_PTR:
10684 case MONO_TYPE_BOOLEAN:
10687 case MONO_TYPE_CHAR:
10692 return mono_object_unbox (o);
10694 case MONO_TYPE_STRING:
10695 switch (string_encoding) {
10696 case MONO_NATIVE_LPWSTR:
10697 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
10699 case MONO_NATIVE_LPSTR:
10700 return mono_string_to_lpstr ((MonoString*)o);
10703 g_warning ("marshaling conversion %d not implemented", string_encoding);
10704 g_assert_not_reached ();
10707 case MONO_TYPE_CLASS:
10708 case MONO_TYPE_VALUETYPE: {
10709 MonoMethod *method;
10712 MonoBoolean delete_old = FALSE;
10714 klass = t->data.klass;
10716 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10719 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10720 klass->blittable || klass->enumtype))
10721 return mono_object_unbox (o);
10723 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10725 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10726 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10730 pa [2] = &delete_old;
10732 mono_runtime_invoke (method, NULL, pa, NULL);
10739 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10745 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10753 t = &o->vtable->klass->byval_arg;
10755 case MONO_TYPE_STRING:
10756 switch (string_encoding) {
10757 case MONO_NATIVE_LPWSTR:
10758 case MONO_NATIVE_LPSTR:
10759 mono_marshal_free (ptr);
10762 g_warning ("marshaling conversion %d not implemented", string_encoding);
10763 g_assert_not_reached ();
10766 case MONO_TYPE_CLASS:
10767 case MONO_TYPE_VALUETYPE: {
10768 klass = t->data.klass;
10770 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10771 klass->blittable || klass->enumtype))
10774 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10775 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10781 mono_runtime_invoke (method, NULL, pa, NULL);
10784 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10785 mono_struct_delete_old (klass, ptr);
10788 mono_marshal_free (ptr);
10797 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10799 MonoMethodSignature *sig, *csig;
10800 MonoMethodBuilder *mb;
10804 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10805 mb->method->slot = -1;
10807 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10808 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10810 sig = mono_method_signature (method);
10811 csig = signature_dup (method->klass->image, sig);
10812 csig->generic_param_count = 0;
10814 mono_mb_emit_ldarg (mb, 0);
10815 for (i = 0; i < csig->param_count; i++)
10816 mono_mb_emit_ldarg (mb, i + 1);
10817 mono_mb_emit_managed_call (mb, method, NULL);
10818 mono_mb_emit_byte (mb, CEE_RET);
10820 /* We can corlib internal methods */
10821 mb->skip_visibility = TRUE;
10823 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10831 * The mono_win32_compat_* functions are implementations of inline
10832 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10833 * although not exported by kernel32.
10835 * We map the appropiate kernel32 entries to these functions using
10836 * dllmaps declared in the global etc/mono/config.
10840 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10842 if (!dest || !source)
10845 memcpy (dest, source, length);
10849 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10851 memset (dest, fill, length);
10855 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10857 if (!dest || !source)
10860 memmove (dest, source, length);
10864 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10866 memset (dest, 0, length);
10870 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10875 for (i = 0; i < len; ++i)
10879 g_assert (i < len);
10882 while (byte && !(byte & 1))
10884 g_assert (byte == 1);
10887 *bitmask = buf [i];
10891 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10893 MonoMethodBuilder *mb;
10894 MonoMethodSignature *sig, *csig;
10895 MonoExceptionClause *clause;
10900 int i, param_count, sig_size, pos_leave;
10904 klass = method->klass;
10905 image = method->klass->image;
10906 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10908 if ((res = mono_marshal_find_in_cache (cache, method)))
10911 sig = mono_method_signature (method);
10912 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10914 /* add "this" and exception param */
10915 param_count = sig->param_count + sig->hasthis + 1;
10917 /* dup & extend signature */
10918 csig = mono_metadata_signature_alloc (image, param_count);
10919 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10920 memcpy (csig, sig, sig_size);
10921 csig->param_count = param_count;
10924 csig->call_convention = MONO_CALL_DEFAULT;
10926 if (sig->hasthis) {
10928 csig->params [0] = &klass->byval_arg;
10929 /* move params up by one */
10930 for (i = 0; i < sig->param_count; i++)
10931 csig->params [i + 1] = sig->params [i];
10934 /* setup exception param as byref+[out] */
10935 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10936 &mono_defaults.exception_class->byval_arg);
10937 csig->params [param_count - 1]->byref = 1;
10938 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10940 /* convert struct return to object */
10941 if (MONO_TYPE_ISSTRUCT (sig->ret))
10942 csig->ret = &mono_defaults.object_class->byval_arg;
10944 /* local 0 (temp for exception object) */
10945 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10947 /* local 1 (temp for result) */
10948 if (!MONO_TYPE_IS_VOID (sig->ret))
10949 mono_mb_add_local (mb, sig->ret);
10951 /* clear exception arg */
10952 mono_mb_emit_ldarg (mb, param_count - 1);
10953 mono_mb_emit_byte (mb, CEE_LDNULL);
10954 mono_mb_emit_byte (mb, CEE_STIND_REF);
10957 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10958 clause->try_offset = mono_mb_get_label (mb);
10960 /* push method's args */
10961 for (i = 0; i < param_count - 1; i++) {
10965 mono_mb_emit_ldarg (mb, i);
10967 /* get the byval type of the param */
10968 klass = mono_class_from_mono_type (csig->params [i]);
10969 type = &klass->byval_arg;
10971 /* unbox struct args */
10972 if (MONO_TYPE_ISSTRUCT (type)) {
10973 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10975 /* byref args & and the "this" arg must remain a ptr.
10976 Otherwise make a copy of the value type */
10977 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10978 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10980 csig->params [i] = &mono_defaults.object_class->byval_arg;
10985 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10986 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10988 mono_mb_emit_op (mb, CEE_CALL, method);
10990 /* save result at local 1 */
10991 if (!MONO_TYPE_IS_VOID (sig->ret))
10992 mono_mb_emit_stloc (mb, 1);
10994 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
10997 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
10998 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10999 clause->data.catch_class = mono_defaults.object_class;
11001 clause->handler_offset = mono_mb_get_label (mb);
11003 /* store exception at local 0 */
11004 mono_mb_emit_stloc (mb, 0);
11005 mono_mb_emit_ldarg (mb, param_count - 1);
11006 mono_mb_emit_ldloc (mb, 0);
11007 mono_mb_emit_byte (mb, CEE_STIND_REF);
11008 mono_mb_emit_branch (mb, CEE_LEAVE);
11010 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11012 mono_mb_set_clauses (mb, 1, clause);
11014 mono_mb_patch_branch (mb, pos_leave);
11017 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11018 mono_mb_emit_ldloc (mb, 1);
11020 /* box the return value */
11021 if (MONO_TYPE_ISSTRUCT (sig->ret))
11022 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11025 mono_mb_emit_byte (mb, CEE_RET);
11027 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11034 * mono_marshal_free_dynamic_wrappers:
11036 * Free wrappers of the dynamic method METHOD.
11039 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11041 g_assert (method->dynamic);
11043 /* This could be called during shutdown */
11044 if (marshal_mutex_initialized)
11045 mono_marshal_lock ();
11047 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11048 * they could be shared with other methods ?
11050 if (method->klass->image->runtime_invoke_direct_cache)
11051 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11052 if (marshal_mutex_initialized)
11053 mono_marshal_unlock ();
11057 * mono_marshal_free_inflated_wrappers:
11059 * Free wrappers of the inflated method METHOD.
11063 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11065 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11066 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11068 return mono_metadata_signature_equal (pair->sig, sig);
11072 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11074 MonoMethodSignature *sig = method->signature;
11076 g_assert (method->is_inflated);
11078 /* Ignore calls occuring late during cleanup. */
11079 if (!marshal_mutex_initialized)
11082 mono_marshal_lock ();
11084 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11085 * they could be shared with other methods ?
11089 * indexed by MonoMethodSignature
11091 /* FIXME: This could remove unrelated wrappers as well */
11092 if (sig && method->klass->image->delegate_begin_invoke_cache)
11093 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11094 if (sig && method->klass->image->delegate_end_invoke_cache)
11095 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11096 if (sig && method->klass->image->delegate_invoke_cache)
11097 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11098 if (sig && method->klass->image->runtime_invoke_cache)
11099 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11102 * indexed by SignatureMethodPair
11104 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11105 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11106 signature_method_pair_matches_signature, (gpointer)sig);
11109 * indexed by MonoMethod pointers
11111 if (method->klass->image->runtime_invoke_direct_cache)
11112 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11113 if (method->klass->image->managed_wrapper_cache)
11114 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11115 if (method->klass->image->native_wrapper_cache)
11116 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11117 if (method->klass->image->remoting_invoke_cache)
11118 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11119 if (method->klass->image->synchronized_cache)
11120 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11121 if (method->klass->image->unbox_wrapper_cache)
11122 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11123 if (method->klass->image->cominterop_invoke_cache)
11124 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11125 if (method->klass->image->cominterop_wrapper_cache)
11126 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11127 if (method->klass->image->thunk_invoke_cache)
11128 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11130 mono_marshal_unlock ();