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 return mono_metadata_signature_dup_full (image, sig);
171 mono_signature_no_pinvoke (MonoMethod *method)
173 MonoMethodSignature *sig = mono_method_signature (method);
175 sig = signature_dup (method->klass->image, sig);
176 sig->pinvoke = FALSE;
183 mono_marshal_init (void)
185 static gboolean module_initialized = FALSE;
187 if (!module_initialized) {
188 module_initialized = TRUE;
189 InitializeCriticalSection (&marshal_mutex);
190 marshal_mutex_initialized = TRUE;
191 last_error_tls_id = TlsAlloc ();
192 load_type_info_tls_id = TlsAlloc ();
194 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
195 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
196 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
197 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
198 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
199 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
200 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
201 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
202 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
203 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
204 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
205 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
206 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
207 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
208 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
209 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
210 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
211 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
212 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
213 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
214 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
215 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
216 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
217 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
218 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
219 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
220 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
221 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
222 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
223 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
224 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
225 register_icall (g_free, "g_free", "void ptr", FALSE);
226 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
227 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
228 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
229 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
230 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
231 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
232 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
233 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
234 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
235 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
236 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
237 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
238 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
239 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
240 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
241 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
243 mono_cominterop_init ();
248 mono_marshal_cleanup (void)
250 mono_cominterop_cleanup ();
252 TlsFree (load_type_info_tls_id);
253 TlsFree (last_error_tls_id);
254 DeleteCriticalSection (&marshal_mutex);
255 marshal_mutex_initialized = FALSE;
258 MonoClass *byte_array_class;
259 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
260 static MonoMethod *method_set_context, *method_get_context;
261 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
264 mono_remoting_marshal_init (void)
268 static gboolean module_initialized = FALSE;
270 if (!module_initialized) {
271 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
272 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
273 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
274 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
276 klass = mono_defaults.real_proxy_class;
277 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
279 klass = mono_defaults.exception_class;
280 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
282 klass = mono_defaults.thread_class;
283 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
285 klass = mono_defaults.appdomain_class;
286 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
287 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
289 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
290 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
292 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
293 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
295 module_initialized = TRUE;
300 mono_delegate_to_ftnptr (MonoDelegate *delegate)
302 MonoMethod *method, *wrapper;
304 uint32_t target_handle = 0;
309 if (delegate->delegate_trampoline)
310 return delegate->delegate_trampoline;
312 klass = ((MonoObject *)delegate)->vtable->klass;
313 g_assert (klass->delegate);
315 method = delegate->method;
317 if (mono_method_signature (method)->pinvoke) {
318 const char *exc_class, *exc_arg;
321 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
323 g_assert (exc_class);
324 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
329 if (delegate->target) {
330 /* Produce a location which can be embedded in JITted code */
331 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
334 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
336 delegate->delegate_trampoline = mono_compile_method (wrapper);
338 // Add the delegate to the delegate hash table
339 delegate_hash_table_add (delegate);
341 /* when the object is collected, collect the dynamic method, too */
342 mono_object_register_finalizer ((MonoObject*)delegate);
344 return delegate->delegate_trampoline;
348 * this hash table maps from a delegate trampoline object to a weak reference
349 * of the delegate. As an optimizations with a non-moving GC we store the
350 * object pointer itself, otherwise we use a GC handle.
352 static GHashTable *delegate_hash_table;
355 delegate_hash_table_new (void) {
356 return g_hash_table_new (NULL, NULL);
360 delegate_hash_table_remove (MonoDelegate *d)
362 #ifdef HAVE_MOVING_COLLECTOR
365 mono_marshal_lock ();
366 if (delegate_hash_table == NULL)
367 delegate_hash_table = delegate_hash_table_new ();
368 #ifdef HAVE_MOVING_COLLECTOR
369 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
371 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
372 mono_marshal_unlock ();
373 #ifdef HAVE_MOVING_COLLECTOR
374 mono_gchandle_free (gchandle);
379 delegate_hash_table_add (MonoDelegate *d)
381 #ifdef HAVE_MOVING_COLLECTOR
382 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
383 guint32 old_gchandle;
385 mono_marshal_lock ();
386 if (delegate_hash_table == NULL)
387 delegate_hash_table = delegate_hash_table_new ();
388 #ifdef HAVE_MOVING_COLLECTOR
389 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
390 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
392 mono_gchandle_free (old_gchandle);
394 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
396 mono_marshal_unlock ();
400 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
402 #ifdef HAVE_MOVING_COLLECTOR
410 mono_marshal_lock ();
411 if (delegate_hash_table == NULL)
412 delegate_hash_table = delegate_hash_table_new ();
414 #ifdef HAVE_MOVING_COLLECTOR
415 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
416 mono_marshal_unlock ();
418 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
422 d = g_hash_table_lookup (delegate_hash_table, ftn);
423 mono_marshal_unlock ();
426 /* This is a native function, so construct a delegate for it */
427 static MonoClass *UnmanagedFunctionPointerAttribute;
428 MonoMethodSignature *sig;
430 MonoMarshalSpec **mspecs;
431 MonoCustomAttrInfo *cinfo;
432 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
433 MonoMethod *invoke = mono_get_delegate_invoke (klass);
434 MonoMethodPInvoke piinfo;
437 memset (&piinfo, 0, sizeof (piinfo));
438 if (!UnmanagedFunctionPointerAttribute)
439 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
441 /* The attribute is only available in Net 2.0 */
442 if (UnmanagedFunctionPointerAttribute) {
444 * The pinvoke attributes are stored in a real custom attribute so we have to
447 cinfo = mono_custom_attrs_from_class (klass);
449 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
451 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
454 mono_custom_attrs_free (cinfo);
458 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
459 mono_method_get_marshal_info (invoke, mspecs);
460 /* Freed below so don't alloc from mempool */
461 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
464 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
466 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
468 mono_metadata_free_marshal_spec (mspecs [i]);
472 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
473 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
476 if (d->object.vtable->domain != mono_domain_get ())
477 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
483 mono_delegate_free_ftnptr (MonoDelegate *delegate)
488 delegate_hash_table_remove (delegate);
490 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
492 if (!delegate->target) {
493 /* The wrapper method is shared between delegates -> no need to free it */
500 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
503 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
505 /*the target gchandle is the first entry after size and the wrapper itself.*/
506 gchandle = GPOINTER_TO_UINT (method_data [2]);
509 mono_gchandle_free (gchandle);
511 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
516 mono_array_to_savearray (MonoArray *array)
521 g_assert_not_reached ();
526 mono_array_to_lparray (MonoArray *array)
528 gpointer *nativeArray = NULL;
529 int nativeArraySize = 0;
538 klass = array->obj.vtable->klass;
540 switch (klass->element_class->byval_arg.type) {
542 g_assert_not_reached ();
545 case MONO_TYPE_CLASS:
546 nativeArraySize = array->max_length;
547 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
548 for(i = 0; i < nativeArraySize; ++i)
549 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
553 case MONO_TYPE_BOOLEAN:
566 case MONO_TYPE_VALUETYPE:
569 case MONO_TYPE_GENERICINST:
571 case MONO_TYPE_OBJECT:
572 case MONO_TYPE_ARRAY:
573 case MONO_TYPE_SZARRAY:
574 case MONO_TYPE_STRING:
576 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
577 g_assert_not_reached ();
580 return array->vector;
584 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
595 klass = array->obj.vtable->klass;
597 switch (klass->element_class->byval_arg.type) {
598 case MONO_TYPE_CLASS:
599 for(i = 0; i < array->max_length; ++i)
600 mono_marshal_free_ccw(nativeArray[i]);
608 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
610 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
612 if (elclass == mono_defaults.byte_class) {
613 GError *error = NULL;
617 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
620 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
624 g_error_free (error);
627 g_assert_not_reached ();
631 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
633 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
635 if (elclass == mono_defaults.byte_class) {
637 GError *error = NULL;
639 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
641 MonoException *exc = mono_get_exception_argument ("string", error->message);
642 g_error_free (error);
643 mono_raise_exception (exc);
646 memcpy (native_arr, as, MIN (strlen (as), elnum));
649 g_assert_not_reached ();
654 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
656 GError *error = NULL;
666 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
668 if (items_written > mono_stringbuilder_capacity (sb))
669 items_written = mono_stringbuilder_capacity (sb);
672 if (! sb->str || sb->str == sb->cached_str) {
673 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
674 sb->cached_str = NULL;
677 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
678 sb->length = items_written;
680 g_error_free (error);
686 mono_string_utf8_to_builder2 (char *text)
689 MonoStringBuilder *sb;
690 static MonoClass *string_builder_class;
691 static MonoMethod *sb_ctor;
698 if (!string_builder_class) {
699 MonoMethodDesc *desc;
701 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
702 g_assert (string_builder_class);
703 desc = mono_method_desc_new (":.ctor(int)", FALSE);
704 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
706 mono_method_desc_free (desc);
711 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
714 mono_runtime_invoke (sb_ctor, sb, args, &exc);
717 mono_string_utf8_to_builder (sb, text);
723 * FIXME: This routine does not seem to do what it seems to do
724 * the @text is never copied into the string builder
727 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
734 g_assert (mono_string_chars (sb->str) == text);
736 for (len = 0; text [len] != 0; ++len)
743 mono_string_utf16_to_builder2 (gunichar2 *text)
746 MonoStringBuilder *sb;
747 static MonoClass *string_builder_class;
748 static MonoMethod *sb_ctor;
755 if (!string_builder_class) {
756 MonoMethodDesc *desc;
758 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
759 g_assert (string_builder_class);
760 desc = mono_method_desc_new (":.ctor(int)", FALSE);
761 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
763 mono_method_desc_free (desc);
766 for (len = 0; text [len] != 0; ++len)
769 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
772 mono_runtime_invoke (sb_ctor, sb, args, &exc);
776 memcpy (mono_string_chars (sb->str), text, len * 2);
782 * mono_string_builder_to_utf8:
783 * @sb: the string builder
785 * Converts to utf8 the contents of the MonoStringBuilder.
787 * Returns: a utf8 string with the contents of the StringBuilder.
789 * The return value must be released with g_free.
792 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
794 GError *error = NULL;
795 gchar *tmp, *res = NULL;
800 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
802 * The sb could have been allocated with the default capacity and be empty.
803 * we need to alloc a buffer of the default capacity in this case.
805 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
806 sb->cached_str = NULL;
809 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
811 g_error_free (error);
812 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
814 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
815 memcpy (res, tmp, sb->length + 1);
823 * mono_string_builder_to_utf16:
824 * @sb: the string builder
826 * Converts to utf16 the contents of the MonoStringBuilder.
828 * Returns: a utf16 string with the contents of the StringBuilder.
830 * The return value must not be freed.
833 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
841 * The stringbuilder might not have ownership of this string. If this is
842 * the case, we must duplicate the string, so that we don't munge immutable
845 if (sb->str == sb->cached_str) {
847 * The sb could have been allocated with the default capacity and be empty.
848 * we need to alloc a buffer of the default capacity in this case.
850 if (sb->str->length == 0)
851 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
853 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
854 sb->cached_str = NULL;
858 *(mono_string_chars (sb->str)) = '\0';
860 return mono_string_chars (sb->str);
864 mono_string_to_lpstr (MonoString *s)
869 GError *error = NULL;
875 as = CoTaskMemAlloc (1);
880 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
882 MonoException *exc = mono_get_exception_argument ("string", error->message);
883 g_error_free (error);
884 mono_raise_exception(exc);
887 as = CoTaskMemAlloc (len + 1);
888 memcpy (as, tmp, len + 1);
893 return mono_string_to_utf8 (s);
898 mono_string_to_ansibstr (MonoString *string_obj)
900 g_error ("UnmanagedMarshal.BStr is not implemented.");
905 * mono_string_to_byvalstr:
906 * @dst: Where to store the null-terminated utf8 decoded string.
907 * @src: the MonoString to copy.
908 * @size: the maximum number of bytes to copy.
910 * Copies the MonoString pointed to by @src as a utf8 string
911 * into @dst, it copies at most @size bytes into the destination.
914 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
919 g_assert (dst != NULL);
922 memset (dst, 0, size);
926 s = mono_string_to_utf8 (src);
927 len = MIN (size, strlen (s));
930 memcpy (dst, s, len);
935 * mono_string_to_byvalwstr:
936 * @dst: Where to store the null-terminated utf16 decoded string.
937 * @src: the MonoString to copy.
938 * @size: the maximum number of bytes to copy.
940 * Copies the MonoString pointed to by @src as a utf16 string into
941 * @dst, it copies at most @size bytes into the destination (including
942 * a terminating 16-bit zero terminator).
945 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
949 g_assert (dst != NULL);
953 memset (dst, 0, size * 2);
957 len = MIN (size, (mono_string_length (src)));
958 memcpy (dst, mono_string_chars (src), size * 2);
959 if (size <= mono_string_length (src))
961 *((gunichar2 *) dst + len) = 0;
965 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
968 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
969 mono_mb_emit_byte (mb, CEE_LDIND_I);
970 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
971 mono_mb_emit_byte (mb, CEE_ADD);
972 mono_mb_emit_byte (mb, CEE_LDIND_I);
973 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
974 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
975 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
976 pos = mono_mb_emit_branch (mb, branch_code);
981 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
984 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
985 mono_mb_emit_byte (mb, CEE_LDIND_REF);
986 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
987 mono_mb_emit_byte (mb, CEE_LDIND_I4);
988 mono_mb_emit_icon (mb, -1);
989 pos = mono_mb_emit_branch (mb, branch_code);
994 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
996 static int offset = -1;
1000 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1002 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1003 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1004 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1005 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1006 mono_mb_emit_ldflda (mb, offset);
1007 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1008 mono_mb_emit_icon (mb, mask);
1009 mono_mb_emit_byte (mb, CEE_AND);
1010 mono_mb_emit_icon (mb, 0);
1011 return mono_mb_emit_branch (mb, branch_code);
1015 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1017 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1021 mono_type_to_ldind (MonoType *type)
1027 switch (type->type) {
1029 return CEE_LDIND_I1;
1031 case MONO_TYPE_BOOLEAN:
1032 return CEE_LDIND_U1;
1034 return CEE_LDIND_I2;
1036 case MONO_TYPE_CHAR:
1037 return CEE_LDIND_U2;
1039 return CEE_LDIND_I4;
1041 return CEE_LDIND_U4;
1045 case MONO_TYPE_FNPTR:
1047 case MONO_TYPE_CLASS:
1048 case MONO_TYPE_STRING:
1049 case MONO_TYPE_OBJECT:
1050 case MONO_TYPE_SZARRAY:
1051 case MONO_TYPE_ARRAY:
1052 return CEE_LDIND_REF;
1055 return CEE_LDIND_I8;
1057 return CEE_LDIND_R4;
1059 return CEE_LDIND_R8;
1060 case MONO_TYPE_VALUETYPE:
1061 if (type->data.klass->enumtype) {
1062 type = mono_class_enum_basetype (type->data.klass);
1066 case MONO_TYPE_TYPEDBYREF:
1068 case MONO_TYPE_GENERICINST:
1069 type = &type->data.generic_class->container_class->byval_arg;
1072 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1078 mono_type_to_stind (MonoType *type)
1084 switch (type->type) {
1087 case MONO_TYPE_BOOLEAN:
1088 return CEE_STIND_I1;
1091 case MONO_TYPE_CHAR:
1092 return CEE_STIND_I2;
1095 return CEE_STIND_I4;
1099 case MONO_TYPE_FNPTR:
1101 case MONO_TYPE_CLASS:
1102 case MONO_TYPE_STRING:
1103 case MONO_TYPE_OBJECT:
1104 case MONO_TYPE_SZARRAY:
1105 case MONO_TYPE_ARRAY:
1106 return CEE_STIND_REF;
1109 return CEE_STIND_I8;
1111 return CEE_STIND_R4;
1113 return CEE_STIND_R8;
1114 case MONO_TYPE_VALUETYPE:
1115 if (type->data.klass->enumtype) {
1116 type = mono_class_enum_basetype (type->data.klass);
1120 case MONO_TYPE_TYPEDBYREF:
1122 case MONO_TYPE_GENERICINST:
1123 type = &type->data.generic_class->container_class->byval_arg;
1126 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1132 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1135 case MONO_MARSHAL_CONV_BOOL_I4:
1136 mono_mb_emit_ldloc (mb, 1);
1137 mono_mb_emit_ldloc (mb, 0);
1138 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1139 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1140 mono_mb_emit_byte (mb, 3);
1141 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1142 mono_mb_emit_byte (mb, CEE_BR_S);
1143 mono_mb_emit_byte (mb, 1);
1144 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1145 mono_mb_emit_byte (mb, CEE_STIND_I1);
1147 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1148 mono_mb_emit_ldloc (mb, 1);
1149 mono_mb_emit_ldloc (mb, 0);
1150 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1151 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1152 mono_mb_emit_byte (mb, 3);
1153 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1154 mono_mb_emit_byte (mb, CEE_BR_S);
1155 mono_mb_emit_byte (mb, 1);
1156 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1157 mono_mb_emit_byte (mb, CEE_STIND_I1);
1159 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1160 MonoClass *eklass = NULL;
1163 if (type->type == MONO_TYPE_SZARRAY) {
1164 eklass = type->data.klass;
1166 g_assert_not_reached ();
1169 esize = mono_class_native_size (eklass, NULL);
1171 /* create a new array */
1172 mono_mb_emit_ldloc (mb, 1);
1173 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1174 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1175 mono_mb_emit_byte (mb, CEE_STIND_I);
1177 if (eklass->blittable) {
1178 /* copy the elements */
1179 mono_mb_emit_ldloc (mb, 1);
1180 mono_mb_emit_byte (mb, CEE_LDIND_I);
1181 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1182 mono_mb_emit_byte (mb, CEE_ADD);
1183 mono_mb_emit_ldloc (mb, 0);
1184 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1185 mono_mb_emit_byte (mb, CEE_PREFIX1);
1186 mono_mb_emit_byte (mb, CEE_CPBLK);
1189 int array_var, src_var, dst_var, index_var;
1190 guint32 label2, label3;
1192 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1193 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1194 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1197 mono_mb_emit_ldloc (mb, 1);
1198 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1199 mono_mb_emit_stloc (mb, array_var);
1201 /* save the old src pointer */
1202 mono_mb_emit_ldloc (mb, 0);
1203 mono_mb_emit_stloc (mb, src_var);
1204 /* save the old dst pointer */
1205 mono_mb_emit_ldloc (mb, 1);
1206 mono_mb_emit_stloc (mb, dst_var);
1208 /* Emit marshalling loop */
1209 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1210 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1211 mono_mb_emit_stloc (mb, index_var);
1214 label2 = mono_mb_get_label (mb);
1215 mono_mb_emit_ldloc (mb, index_var);
1216 mono_mb_emit_ldloc (mb, array_var);
1217 mono_mb_emit_byte (mb, CEE_LDLEN);
1218 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1220 /* src is already set */
1223 mono_mb_emit_ldloc (mb, array_var);
1224 mono_mb_emit_ldloc (mb, index_var);
1225 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1226 mono_mb_emit_stloc (mb, 1);
1228 /* Do the conversion */
1229 emit_struct_conv (mb, eklass, TRUE);
1232 mono_mb_emit_add_to_local (mb, index_var, 1);
1234 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1236 mono_mb_patch_branch (mb, label3);
1238 /* restore the old src pointer */
1239 mono_mb_emit_ldloc (mb, src_var);
1240 mono_mb_emit_stloc (mb, 0);
1241 /* restore the old dst pointer */
1242 mono_mb_emit_ldloc (mb, dst_var);
1243 mono_mb_emit_stloc (mb, 1);
1247 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1248 MonoClass *eclass = mono_defaults.char_class;
1250 /* create a new array */
1251 mono_mb_emit_ldloc (mb, 1);
1252 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1253 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1254 mono_mb_emit_byte (mb, CEE_STIND_REF);
1256 mono_mb_emit_ldloc (mb, 1);
1257 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1258 mono_mb_emit_ldloc (mb, 0);
1259 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1260 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1261 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1264 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1265 mono_mb_emit_ldloc (mb, 1);
1266 mono_mb_emit_ldloc (mb, 0);
1267 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1268 mono_mb_emit_byte (mb, CEE_STIND_REF);
1270 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1271 mono_mb_emit_ldloc (mb, 1);
1272 mono_mb_emit_ldloc (mb, 0);
1273 mono_mb_emit_icall (mb, mono_string_from_utf16);
1274 mono_mb_emit_byte (mb, CEE_STIND_REF);
1276 case MONO_MARSHAL_CONV_STR_LPTSTR:
1277 mono_mb_emit_ldloc (mb, 1);
1278 mono_mb_emit_ldloc (mb, 0);
1279 mono_mb_emit_byte (mb, CEE_LDIND_I);
1281 mono_mb_emit_icall (mb, mono_string_from_utf16);
1283 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1285 mono_mb_emit_byte (mb, CEE_STIND_REF);
1287 case MONO_MARSHAL_CONV_STR_LPSTR:
1288 mono_mb_emit_ldloc (mb, 1);
1289 mono_mb_emit_ldloc (mb, 0);
1290 mono_mb_emit_byte (mb, CEE_LDIND_I);
1291 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1292 mono_mb_emit_byte (mb, CEE_STIND_REF);
1294 case MONO_MARSHAL_CONV_STR_LPWSTR:
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_from_utf16);
1299 mono_mb_emit_byte (mb, CEE_STIND_REF);
1301 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1302 MonoClass *klass = mono_class_from_mono_type (type);
1303 int src_var, dst_var;
1305 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1306 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1308 /* *dst = new object */
1309 mono_mb_emit_ldloc (mb, 1);
1310 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1311 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1312 mono_mb_emit_byte (mb, CEE_STIND_REF);
1314 /* save the old src pointer */
1315 mono_mb_emit_ldloc (mb, 0);
1316 mono_mb_emit_stloc (mb, src_var);
1317 /* save the old dst pointer */
1318 mono_mb_emit_ldloc (mb, 1);
1319 mono_mb_emit_stloc (mb, dst_var);
1321 /* dst = pointer to newly created object data */
1322 mono_mb_emit_ldloc (mb, 1);
1323 mono_mb_emit_byte (mb, CEE_LDIND_I);
1324 mono_mb_emit_icon (mb, sizeof (MonoObject));
1325 mono_mb_emit_byte (mb, CEE_ADD);
1326 mono_mb_emit_stloc (mb, 1);
1328 emit_struct_conv (mb, klass, TRUE);
1330 /* restore the old src pointer */
1331 mono_mb_emit_ldloc (mb, src_var);
1332 mono_mb_emit_stloc (mb, 0);
1333 /* restore the old dst pointer */
1334 mono_mb_emit_ldloc (mb, dst_var);
1335 mono_mb_emit_stloc (mb, 1);
1338 case MONO_MARSHAL_CONV_DEL_FTN: {
1339 MonoClass *klass = mono_class_from_mono_type (type);
1341 mono_mb_emit_ldloc (mb, 1);
1342 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1343 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1344 mono_mb_emit_ldloc (mb, 0);
1345 mono_mb_emit_byte (mb, CEE_LDIND_I);
1346 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1347 mono_mb_emit_byte (mb, CEE_STIND_REF);
1350 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1351 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1355 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1356 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1357 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1358 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1360 #endif /* DISABLE_COM */
1362 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1364 * Passing SafeHandles as ref does not allow the unmanaged code
1365 * to change the SafeHandle value. If the value is changed,
1366 * we should issue a diagnostic exception (NotSupportedException)
1367 * that informs the user that changes to handles in unmanaged code
1370 * Since we currently have no access to the original
1371 * SafeHandle that was used during the marshalling,
1372 * for now we just ignore this, and ignore/discard any
1373 * changes that might have happened to the handle.
1378 case MONO_MARSHAL_CONV_HANDLEREF: {
1380 * Passing HandleRefs in a struct that is ref()ed does not
1381 * copy the values back to the HandleRef
1386 case MONO_MARSHAL_CONV_STR_BSTR:
1387 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1388 case MONO_MARSHAL_CONV_STR_TBSTR:
1389 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1391 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1393 mono_mb_emit_exception_marshal_directive (mb, msg);
1401 conv_to_icall (MonoMarshalConv conv)
1404 case MONO_MARSHAL_CONV_STR_LPWSTR:
1405 return mono_marshal_string_to_utf16;
1406 case MONO_MARSHAL_CONV_LPWSTR_STR:
1407 return mono_string_from_utf16;
1408 case MONO_MARSHAL_CONV_LPSTR_STR:
1409 return mono_string_new_wrapper;
1410 case MONO_MARSHAL_CONV_STR_LPTSTR:
1412 return mono_marshal_string_to_utf16;
1414 return mono_string_to_lpstr;
1416 case MONO_MARSHAL_CONV_STR_LPSTR:
1417 return mono_string_to_lpstr;
1418 case MONO_MARSHAL_CONV_STR_BSTR:
1419 return mono_string_to_bstr;
1420 case MONO_MARSHAL_CONV_BSTR_STR:
1421 return mono_string_from_bstr;
1422 case MONO_MARSHAL_CONV_STR_TBSTR:
1423 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1424 return mono_string_to_ansibstr;
1425 case MONO_MARSHAL_CONV_SB_LPSTR:
1426 return mono_string_builder_to_utf8;
1427 case MONO_MARSHAL_CONV_SB_LPTSTR:
1429 return mono_string_builder_to_utf16;
1431 return mono_string_builder_to_utf8;
1433 case MONO_MARSHAL_CONV_SB_LPWSTR:
1434 return mono_string_builder_to_utf16;
1435 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1436 return mono_array_to_savearray;
1437 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1438 return mono_array_to_lparray;
1439 case MONO_MARSHAL_FREE_LPARRAY:
1440 return mono_free_lparray;
1441 case MONO_MARSHAL_CONV_DEL_FTN:
1442 return mono_delegate_to_ftnptr;
1443 case MONO_MARSHAL_CONV_FTN_DEL:
1444 return mono_ftnptr_to_delegate;
1445 case MONO_MARSHAL_CONV_LPSTR_SB:
1446 return mono_string_utf8_to_builder;
1447 case MONO_MARSHAL_CONV_LPTSTR_SB:
1449 return mono_string_utf16_to_builder;
1451 return mono_string_utf8_to_builder;
1453 case MONO_MARSHAL_CONV_LPWSTR_SB:
1454 return mono_string_utf16_to_builder;
1455 case MONO_MARSHAL_FREE_ARRAY:
1456 return mono_marshal_free_array;
1457 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1458 return mono_string_to_byvalstr;
1459 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1460 return mono_string_to_byvalwstr;
1462 g_assert_not_reached ();
1469 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1474 case MONO_MARSHAL_CONV_BOOL_I4:
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_ldloc (mb, 0);
1477 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1478 mono_mb_emit_byte (mb, CEE_STIND_I4);
1480 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1481 mono_mb_emit_ldloc (mb, 1);
1482 mono_mb_emit_ldloc (mb, 0);
1483 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1484 mono_mb_emit_byte (mb, CEE_NEG);
1485 mono_mb_emit_byte (mb, CEE_STIND_I2);
1487 case MONO_MARSHAL_CONV_STR_LPWSTR:
1488 case MONO_MARSHAL_CONV_STR_LPSTR:
1489 case MONO_MARSHAL_CONV_STR_LPTSTR:
1490 case MONO_MARSHAL_CONV_STR_BSTR:
1491 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1492 case MONO_MARSHAL_CONV_STR_TBSTR: {
1495 /* free space if free == true */
1496 mono_mb_emit_ldloc (mb, 2);
1497 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_byte (mb, CEE_LDIND_I);
1500 mono_mb_emit_icall (mb, g_free);
1501 mono_mb_patch_short_branch (mb, pos);
1503 mono_mb_emit_ldloc (mb, 1);
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1506 mono_mb_emit_icall (mb, conv_to_icall (conv));
1507 mono_mb_emit_byte (mb, CEE_STIND_I);
1510 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1511 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1512 case MONO_MARSHAL_CONV_DEL_FTN:
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_ldloc (mb, 0);
1515 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1516 mono_mb_emit_icall (mb, conv_to_icall (conv));
1517 mono_mb_emit_byte (mb, CEE_STIND_I);
1519 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1520 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1523 mono_mb_emit_ldloc (mb, 1); /* dst */
1524 mono_mb_emit_ldloc (mb, 0);
1525 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1526 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1527 mono_mb_emit_icall (mb, conv_to_icall (conv));
1530 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1531 MonoClass *eklass = NULL;
1534 if (type->type == MONO_TYPE_SZARRAY) {
1535 eklass = type->data.klass;
1537 g_assert_not_reached ();
1540 if (eklass->valuetype)
1541 esize = mono_class_native_size (eklass, NULL);
1543 esize = sizeof (gpointer);
1545 mono_mb_emit_ldloc (mb, 0);
1546 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1547 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1549 if (eklass->blittable) {
1550 mono_mb_emit_ldloc (mb, 1);
1551 mono_mb_emit_ldloc (mb, 0);
1552 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1553 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1554 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1555 mono_mb_emit_byte (mb, CEE_PREFIX1);
1556 mono_mb_emit_byte (mb, CEE_CPBLK);
1558 int array_var, src_var, dst_var, index_var;
1559 guint32 label2, label3;
1561 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1562 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1563 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1566 mono_mb_emit_ldloc (mb, 0);
1567 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1568 mono_mb_emit_stloc (mb, array_var);
1570 /* save the old src pointer */
1571 mono_mb_emit_ldloc (mb, 0);
1572 mono_mb_emit_stloc (mb, src_var);
1573 /* save the old dst pointer */
1574 mono_mb_emit_ldloc (mb, 1);
1575 mono_mb_emit_stloc (mb, dst_var);
1577 /* Emit marshalling loop */
1578 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1579 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1580 mono_mb_emit_stloc (mb, index_var);
1583 label2 = mono_mb_get_label (mb);
1584 mono_mb_emit_ldloc (mb, index_var);
1585 mono_mb_emit_ldloc (mb, array_var);
1586 mono_mb_emit_byte (mb, CEE_LDLEN);
1587 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1590 mono_mb_emit_ldloc (mb, array_var);
1591 mono_mb_emit_ldloc (mb, index_var);
1592 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1593 mono_mb_emit_stloc (mb, 0);
1595 /* dst is already set */
1597 /* Do the conversion */
1598 emit_struct_conv (mb, eklass, FALSE);
1601 mono_mb_emit_add_to_local (mb, index_var, 1);
1603 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1605 mono_mb_patch_branch (mb, label3);
1607 /* restore the old src pointer */
1608 mono_mb_emit_ldloc (mb, src_var);
1609 mono_mb_emit_stloc (mb, 0);
1610 /* restore the old dst pointer */
1611 mono_mb_emit_ldloc (mb, dst_var);
1612 mono_mb_emit_stloc (mb, 1);
1615 mono_mb_patch_branch (mb, pos);
1618 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1619 mono_mb_emit_ldloc (mb, 0);
1620 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1621 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1623 mono_mb_emit_ldloc (mb, 1);
1624 mono_mb_emit_ldloc (mb, 0);
1625 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1626 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1627 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1628 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1629 mono_mb_patch_short_branch (mb, pos);
1632 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1633 int src_var, dst_var;
1635 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1636 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1638 mono_mb_emit_ldloc (mb, 0);
1639 mono_mb_emit_byte (mb, CEE_LDIND_I);
1640 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1642 /* save the old src pointer */
1643 mono_mb_emit_ldloc (mb, 0);
1644 mono_mb_emit_stloc (mb, src_var);
1645 /* save the old dst pointer */
1646 mono_mb_emit_ldloc (mb, 1);
1647 mono_mb_emit_stloc (mb, dst_var);
1649 /* src = pointer to object data */
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_byte (mb, CEE_LDIND_I);
1652 mono_mb_emit_icon (mb, sizeof (MonoObject));
1653 mono_mb_emit_byte (mb, CEE_ADD);
1654 mono_mb_emit_stloc (mb, 0);
1656 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1658 /* restore the old src pointer */
1659 mono_mb_emit_ldloc (mb, src_var);
1660 mono_mb_emit_stloc (mb, 0);
1661 /* restore the old dst pointer */
1662 mono_mb_emit_ldloc (mb, dst_var);
1663 mono_mb_emit_stloc (mb, 1);
1665 mono_mb_patch_branch (mb, pos);
1670 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1671 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1672 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1673 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1675 #endif /* DISABLE_COM */
1677 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1678 int dar_release_slot, pos;
1680 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1683 * The following is ifdefed-out, because I have no way of doing the
1684 * DangerousRelease when destroying the structure
1687 /* set release = false */
1688 mono_mb_emit_icon (mb, 0);
1689 mono_mb_emit_stloc (mb, dar_release_slot);
1690 if (!sh_dangerous_add_ref)
1691 init_safe_handle ();
1693 /* safehandle.DangerousAddRef (ref release) */
1694 mono_mb_emit_ldloc (mb, 0); /* the source */
1695 mono_mb_emit_byte (mb, CEE_LDIND_I);
1696 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1697 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1699 mono_mb_emit_ldloc (mb, 0);
1700 mono_mb_emit_byte (mb, CEE_LDIND_I);
1701 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1702 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1703 mono_mb_patch_branch (mb, pos);
1705 /* Pull the handle field from SafeHandle */
1706 mono_mb_emit_ldloc (mb, 1);
1707 mono_mb_emit_ldloc (mb, 0);
1708 mono_mb_emit_byte (mb, CEE_LDIND_I);
1709 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1710 mono_mb_emit_byte (mb, CEE_LDIND_I);
1711 mono_mb_emit_byte (mb, CEE_STIND_I);
1715 case MONO_MARSHAL_CONV_HANDLEREF: {
1716 mono_mb_emit_ldloc (mb, 1);
1717 mono_mb_emit_ldloc (mb, 0);
1718 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1719 mono_mb_emit_byte (mb, CEE_ADD);
1720 mono_mb_emit_byte (mb, CEE_LDIND_I);
1721 mono_mb_emit_byte (mb, CEE_STIND_I);
1726 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1727 MonoException *exc = mono_get_exception_not_implemented (msg);
1728 g_warning ("%s", msg);
1730 mono_raise_exception (exc);
1736 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1738 MonoMarshalType *info;
1742 emit_struct_conv(mb, klass->parent, to_object);
1744 info = mono_marshal_load_type_info (klass);
1746 if (info->native_size == 0)
1749 if (klass->blittable) {
1750 int msize = mono_class_value_size (klass, NULL);
1751 g_assert (msize == info->native_size);
1752 mono_mb_emit_ldloc (mb, 1);
1753 mono_mb_emit_ldloc (mb, 0);
1754 mono_mb_emit_icon (mb, msize);
1755 mono_mb_emit_byte (mb, CEE_PREFIX1);
1756 mono_mb_emit_byte (mb, CEE_CPBLK);
1758 mono_mb_emit_add_to_local (mb, 0, msize);
1759 mono_mb_emit_add_to_local (mb, 1, msize);
1763 if (klass != mono_defaults.safehandle_class) {
1764 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1765 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1766 mono_type_full_name (&klass->byval_arg));
1767 mono_mb_emit_exception_marshal_directive (mb, msg);
1772 for (i = 0; i < info->num_fields; i++) {
1773 MonoMarshalNative ntype;
1774 MonoMarshalConv conv;
1775 MonoType *ftype = info->fields [i].field->type;
1778 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1780 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1783 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1786 msize = klass->instance_size - info->fields [i].field->offset;
1787 usize = info->native_size - info->fields [i].offset;
1789 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1790 usize = info->fields [i + 1].offset - info->fields [i].offset;
1793 if (klass != mono_defaults.safehandle_class){
1795 * FIXME: Should really check for usize==0 and msize>0, but we apply
1796 * the layout to the managed structure as well.
1799 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1800 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1801 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1802 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1803 "reference field at the same offset as another field.",
1804 mono_type_full_name (&klass->byval_arg));
1809 case MONO_MARSHAL_CONV_NONE: {
1812 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1813 ftype->type == MONO_TYPE_U) {
1814 mono_mb_emit_ldloc (mb, 1);
1815 mono_mb_emit_ldloc (mb, 0);
1816 mono_mb_emit_byte (mb, CEE_LDIND_I);
1817 mono_mb_emit_byte (mb, CEE_STIND_I);
1828 case MONO_TYPE_BOOLEAN:
1831 case MONO_TYPE_CHAR:
1837 mono_mb_emit_ldloc (mb, 1);
1838 mono_mb_emit_ldloc (mb, 0);
1839 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1840 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1842 case MONO_TYPE_VALUETYPE: {
1843 int src_var, dst_var;
1845 if (ftype->data.klass->enumtype) {
1846 ftype = mono_class_enum_basetype (ftype->data.klass);
1850 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1851 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1853 /* save the old src pointer */
1854 mono_mb_emit_ldloc (mb, 0);
1855 mono_mb_emit_stloc (mb, src_var);
1856 /* save the old dst pointer */
1857 mono_mb_emit_ldloc (mb, 1);
1858 mono_mb_emit_stloc (mb, dst_var);
1860 emit_struct_conv (mb, ftype->data.klass, to_object);
1862 /* restore the old src pointer */
1863 mono_mb_emit_ldloc (mb, src_var);
1864 mono_mb_emit_stloc (mb, 0);
1865 /* restore the old dst pointer */
1866 mono_mb_emit_ldloc (mb, dst_var);
1867 mono_mb_emit_stloc (mb, 1);
1870 case MONO_TYPE_OBJECT: {
1871 mono_init_com_types ();
1873 static MonoMethod *variant_clear = NULL;
1874 static MonoMethod *get_object_for_native_variant = NULL;
1877 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1878 if (!get_object_for_native_variant)
1879 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1880 mono_mb_emit_ldloc (mb, 1);
1881 mono_mb_emit_ldloc (mb, 0);
1882 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1883 mono_mb_emit_byte (mb, CEE_STIND_REF);
1885 mono_mb_emit_ldloc (mb, 0);
1886 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1889 static MonoMethod *get_native_variant_for_object = NULL;
1891 if (!get_native_variant_for_object)
1892 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1894 mono_mb_emit_ldloc (mb, 0);
1895 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1896 mono_mb_emit_ldloc (mb, 1);
1897 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1903 g_warning ("marshaling type %02x not implemented", ftype->type);
1904 g_assert_not_reached ();
1909 int src_var, dst_var;
1911 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1912 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1914 /* save the old src pointer */
1915 mono_mb_emit_ldloc (mb, 0);
1916 mono_mb_emit_stloc (mb, src_var);
1917 /* save the old dst pointer */
1918 mono_mb_emit_ldloc (mb, 1);
1919 mono_mb_emit_stloc (mb, dst_var);
1922 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1924 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1926 /* restore the old src pointer */
1927 mono_mb_emit_ldloc (mb, src_var);
1928 mono_mb_emit_stloc (mb, 0);
1929 /* restore the old dst pointer */
1930 mono_mb_emit_ldloc (mb, dst_var);
1931 mono_mb_emit_stloc (mb, 1);
1936 mono_mb_emit_add_to_local (mb, 0, usize);
1937 mono_mb_emit_add_to_local (mb, 1, msize);
1939 mono_mb_emit_add_to_local (mb, 0, msize);
1940 mono_mb_emit_add_to_local (mb, 1, usize);
1946 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1948 /* Call DestroyStructure */
1949 /* FIXME: Only do this if needed */
1950 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1951 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1952 mono_mb_emit_ldloc (mb, struct_var);
1953 mono_mb_emit_icall (mb, mono_struct_delete_old);
1957 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1961 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1962 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1963 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1965 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1966 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1968 mono_mb_emit_icall (mb, checkpoint_func);
1970 mono_mb_patch_branch (mb, pos_noabort);
1974 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1976 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1979 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1983 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1985 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1989 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1991 emit_thread_interrupt_checkpoint (mb);
1994 static MonoAsyncResult *
1995 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1997 MonoMethodMessage *msg;
1998 MonoDelegate *async_callback;
1999 MonoMulticastDelegate *mcast_delegate;
2003 MonoMethod *method = NULL, *method2 = NULL;
2005 g_assert (delegate);
2006 mcast_delegate = (MonoMulticastDelegate *) delegate;
2007 if (mcast_delegate->prev != NULL)
2008 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2010 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2012 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2013 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2015 /* If the target is a proxy, make a direct call. Is proxy's work
2016 // to make the call asynchronous.
2018 MonoAsyncResult *ares;
2020 MonoArray *out_args;
2021 method = delegate->method;
2023 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2024 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2025 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2026 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2027 MONO_OBJECT_SETREF (msg, async_result, ares);
2028 msg->call_type = CallType_BeginInvoke;
2031 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2033 mono_raise_exception ((MonoException *) exc);
2038 klass = delegate->object.vtable->klass;
2040 method = mono_get_delegate_invoke (klass);
2041 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2044 g_assert (method != NULL);
2046 im = mono_get_delegate_invoke (method->klass);
2047 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2049 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2053 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2055 int i, params_var, tmp_var;
2057 /* allocate local (pointer) *params[] */
2058 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2059 /* allocate local (pointer) tmp */
2060 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2062 /* alloate space on stack to store an array of pointers to the arguments */
2063 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2064 mono_mb_emit_byte (mb, CEE_PREFIX1);
2065 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2066 mono_mb_emit_stloc (mb, params_var);
2069 mono_mb_emit_ldloc (mb, params_var);
2070 mono_mb_emit_stloc (mb, tmp_var);
2072 if (save_this && sig->hasthis) {
2073 mono_mb_emit_ldloc (mb, tmp_var);
2074 mono_mb_emit_ldarg_addr (mb, 0);
2075 mono_mb_emit_byte (mb, CEE_STIND_I);
2076 /* tmp = tmp + sizeof (gpointer) */
2077 if (sig->param_count)
2078 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2082 for (i = 0; i < sig->param_count; i++) {
2083 mono_mb_emit_ldloc (mb, tmp_var);
2084 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2085 mono_mb_emit_byte (mb, CEE_STIND_I);
2086 /* tmp = tmp + sizeof (gpointer) */
2087 if (i < (sig->param_count - 1))
2088 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2095 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2099 GString *res = g_string_new ("");
2102 g_string_append (res, prefix);
2103 g_string_append_c (res, '_');
2106 mono_type_get_desc (res, sig->ret, FALSE);
2109 g_string_append (res, "__this__");
2111 for (i = 0; i < sig->param_count; ++i) {
2112 g_string_append_c (res, '_');
2113 mono_type_get_desc (res, sig->params [i], FALSE);
2116 g_string_free (res, FALSE);
2121 * mono_marshal_get_string_encoding:
2123 * Return the string encoding which should be used for a given parameter.
2125 static MonoMarshalNative
2126 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2128 /* First try the parameter marshal info */
2130 if (spec->native == MONO_NATIVE_LPARRAY) {
2131 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2132 return spec->data.array_data.elem_type;
2135 return spec->native;
2139 return MONO_NATIVE_LPSTR;
2141 /* Then try the method level marshal info */
2142 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2143 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2144 return MONO_NATIVE_LPSTR;
2145 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2146 return MONO_NATIVE_LPWSTR;
2147 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2149 return MONO_NATIVE_LPWSTR;
2151 return MONO_NATIVE_LPSTR;
2154 return MONO_NATIVE_LPSTR;
2158 static MonoMarshalConv
2159 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2161 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2164 case MONO_NATIVE_LPWSTR:
2165 return MONO_MARSHAL_CONV_STR_LPWSTR;
2166 case MONO_NATIVE_LPSTR:
2167 return MONO_MARSHAL_CONV_STR_LPSTR;
2168 case MONO_NATIVE_LPTSTR:
2169 return MONO_MARSHAL_CONV_STR_LPTSTR;
2170 case MONO_NATIVE_BSTR:
2171 return MONO_MARSHAL_CONV_STR_BSTR;
2177 static MonoMarshalConv
2178 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2180 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2183 case MONO_NATIVE_LPWSTR:
2184 return MONO_MARSHAL_CONV_SB_LPWSTR;
2186 case MONO_NATIVE_LPSTR:
2187 return MONO_MARSHAL_CONV_SB_LPSTR;
2189 case MONO_NATIVE_LPTSTR:
2190 return MONO_MARSHAL_CONV_SB_LPTSTR;
2197 static MonoMarshalConv
2198 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2200 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2205 case MONO_NATIVE_LPWSTR:
2207 return MONO_MARSHAL_CONV_LPWSTR_STR;
2208 case MONO_NATIVE_LPSTR:
2209 return MONO_MARSHAL_CONV_LPSTR_STR;
2210 case MONO_NATIVE_LPTSTR:
2211 return MONO_MARSHAL_CONV_LPTSTR_STR;
2212 case MONO_NATIVE_BSTR:
2213 return MONO_MARSHAL_CONV_BSTR_STR;
2219 static MonoMarshalConv
2220 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2222 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2227 case MONO_NATIVE_LPWSTR:
2229 * mono_string_builder_to_utf16 does not allocate a
2230 * new buffer, so no need to free it.
2233 return MONO_MARSHAL_CONV_LPWSTR_SB;
2234 case MONO_NATIVE_LPSTR:
2235 return MONO_MARSHAL_CONV_LPSTR_SB;
2237 case MONO_NATIVE_LPTSTR:
2238 return MONO_MARSHAL_CONV_LPTSTR_SB;
2246 * Return whenever a field of a native structure or an array member needs to
2250 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2252 MonoMarshalNative encoding;
2253 MonoMarshalConv conv;
2256 case MONO_TYPE_VALUETYPE:
2257 /* FIXME: Optimize this */
2259 case MONO_TYPE_OBJECT:
2260 case MONO_TYPE_CLASS:
2261 if (t->data.klass == mono_defaults.stringbuilder_class) {
2263 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2267 case MONO_TYPE_STRING:
2268 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2269 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2276 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2279 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func,
2280 GDestroyNotify key_destroy_func,
2281 GDestroyNotify value_destroy_func)
2284 mono_marshal_lock ();
2287 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2288 mono_memory_barrier ();
2291 mono_marshal_unlock ();
2297 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2299 return get_cache_full (var, hash_func, equal_func, NULL, NULL);
2303 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2305 return get_cache (var, hash_func, equal_func);
2309 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2313 mono_marshal_lock ();
2314 res = g_hash_table_lookup (cache, key);
2315 mono_marshal_unlock ();
2319 /* Create the method from the builder and place it in the cache */
2321 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2322 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2327 mono_marshal_lock ();
2328 res = g_hash_table_lookup (cache, key);
2329 mono_marshal_unlock ();
2332 newm = mono_mb_create_method (mb, sig, max_stack);
2333 mono_marshal_lock ();
2334 res = g_hash_table_lookup (cache, key);
2337 g_hash_table_insert (cache, key, res);
2338 mono_marshal_set_wrapper_info (res, key);
2339 mono_marshal_unlock ();
2341 mono_marshal_unlock ();
2342 mono_free_method (newm);
2350 static inline MonoMethod*
2351 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2353 MonoMethod *res = NULL;
2354 MonoRemotingMethods *wrps;
2356 mono_marshal_lock ();
2357 if (method->klass->image->remoting_invoke_cache)
2358 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2363 switch (wrapper_type) {
2364 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2365 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2366 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2367 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2371 /* it is important to do the unlock after the load from wrps, since in
2372 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2373 * to take the loader lock and some other thread may set the fields.
2375 mono_marshal_unlock ();
2379 /* Create the method from the builder and place it in the cache */
2380 static inline MonoMethod*
2381 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2382 MonoMethodSignature *sig, int max_stack)
2384 MonoMethod **res = NULL;
2385 MonoRemotingMethods *wrps;
2386 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2388 mono_marshal_lock ();
2389 wrps = g_hash_table_lookup (cache, key);
2391 wrps = g_new0 (MonoRemotingMethods, 1);
2392 g_hash_table_insert (cache, key, wrps);
2395 switch (mb->method->wrapper_type) {
2396 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2397 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2398 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2399 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2400 default: g_assert_not_reached (); break;
2402 mono_marshal_unlock ();
2406 newm = mono_mb_create_method (mb, sig, max_stack);
2408 mono_marshal_lock ();
2411 mono_marshal_set_wrapper_info (*res, key);
2412 mono_marshal_unlock ();
2414 mono_marshal_unlock ();
2415 mono_free_method (newm);
2423 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2427 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2430 res = mono_method_get_wrapper_data (wrapper, 1);
2437 * mono_marshal_get_wrapper_info:
2439 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2442 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2444 g_assert (wrapper->wrapper_type);
2446 return mono_method_get_wrapper_data (wrapper, 1);
2450 * mono_marshal_set_wrapper_info:
2452 * Store an arbitrary pointer inside the wrapper which is retrievable by
2453 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2454 * wrapper (method->wrapper_type).
2457 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2461 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2464 datav = ((MonoMethodWrapper *)method)->method_data;
2469 * get_wrapper_target_class:
2471 * Return the class where a wrapper method should be placed.
2474 get_wrapper_target_class (MonoImage *image)
2480 * - can't put all wrappers into an mscorlib class, because they reference
2481 * metadata (signature) so they should be put into the same image as the
2482 * method they wrap, so they are unloaded together.
2483 * - putting them into a class with a type initalizer could cause the
2484 * initializer to be executed which can be a problem if the wrappers are
2486 * - putting them into an inflated class can cause problems if the the
2487 * class is deleted because it references an image which is unloaded.
2488 * To avoid these problems, we put the wrappers into the <Module> class of
2492 klass = ((MonoDynamicImage*)image)->wrappers_type;
2494 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2501 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2503 MonoMethodSignature *sig;
2504 MonoMethodBuilder *mb;
2510 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2511 !strcmp (method->name, "BeginInvoke"));
2513 sig = mono_signature_no_pinvoke (method);
2515 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2516 (GHashFunc)mono_signature_hash,
2517 (GCompareFunc)mono_metadata_signature_equal);
2518 if ((res = mono_marshal_find_in_cache (cache, sig)))
2521 g_assert (sig->hasthis);
2523 name = mono_signature_to_name (sig, "begin_invoke");
2524 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2527 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2529 mono_mb_emit_ldarg (mb, 0);
2530 mono_mb_emit_ldloc (mb, params_var);
2531 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2532 mono_mb_emit_byte (mb, CEE_RET);
2534 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2540 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2542 MonoDomain *domain = mono_domain_get ();
2543 MonoAsyncResult *ares;
2544 MonoMethod *method = NULL;
2545 MonoMethodSignature *sig;
2546 MonoMethodMessage *msg;
2547 MonoObject *res, *exc;
2548 MonoArray *out_args;
2551 g_assert (delegate);
2553 if (!delegate->method_info) {
2554 g_assert (delegate->method);
2555 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2558 if (!delegate->method_info || !delegate->method_info->method)
2559 g_assert_not_reached ();
2561 klass = delegate->object.vtable->klass;
2563 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2564 g_assert (method != NULL);
2566 sig = mono_signature_no_pinvoke (method);
2568 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2570 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2572 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."));
2576 if (ares->async_delegate != (MonoObject*)delegate) {
2577 mono_raise_exception (mono_get_exception_invalid_operation (
2578 "The IAsyncResult object provided does not match this delegate."));
2582 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2583 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2584 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2585 mono_message_init (domain, msg, delegate->method_info, NULL);
2586 msg->call_type = CallType_EndInvoke;
2587 MONO_OBJECT_SETREF (msg, async_result, ares);
2588 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2590 res = mono_thread_pool_finish (ares, &out_args, &exc);
2594 if (((MonoException*)exc)->stack_trace) {
2595 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2597 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2599 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2602 mono_raise_exception ((MonoException*)exc);
2605 mono_method_return_message_restore (method, params, out_args);
2610 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2612 MonoType *t = mono_type_get_underlying_type (return_type);
2614 if (return_type->byref)
2615 return_type = &mono_defaults.int_class->byval_arg;
2618 case MONO_TYPE_VOID:
2619 g_assert_not_reached ();
2622 case MONO_TYPE_STRING:
2623 case MONO_TYPE_CLASS:
2624 case MONO_TYPE_OBJECT:
2625 case MONO_TYPE_ARRAY:
2626 case MONO_TYPE_SZARRAY:
2630 case MONO_TYPE_BOOLEAN:
2633 case MONO_TYPE_CHAR:
2643 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2644 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2646 case MONO_TYPE_GENERICINST:
2647 if (!mono_type_generic_inst_is_valuetype (t))
2650 case MONO_TYPE_VALUETYPE: {
2651 MonoClass *klass = mono_class_from_mono_type (return_type);
2652 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2653 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2657 g_warning ("type 0x%x not handled", return_type->type);
2658 g_assert_not_reached ();
2661 mono_mb_emit_byte (mb, CEE_RET);
2665 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2667 MonoMethodSignature *sig;
2668 MonoMethodBuilder *mb;
2674 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2675 !strcmp (method->name, "EndInvoke"));
2677 sig = mono_signature_no_pinvoke (method);
2679 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2680 (GHashFunc)mono_signature_hash,
2681 (GCompareFunc)mono_metadata_signature_equal);
2682 if ((res = mono_marshal_find_in_cache (cache, sig)))
2685 g_assert (sig->hasthis);
2687 name = mono_signature_to_name (sig, "end_invoke");
2688 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2691 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2693 mono_mb_emit_ldarg (mb, 0);
2694 mono_mb_emit_ldloc (mb, params_var);
2695 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2697 if (sig->ret->type == MONO_TYPE_VOID) {
2698 mono_mb_emit_byte (mb, CEE_POP);
2699 mono_mb_emit_byte (mb, CEE_RET);
2701 mono_mb_emit_restore_result (mb, sig->ret);
2703 res = mono_mb_create_and_cache (cache, sig,
2704 mb, sig, sig->param_count + 16);
2711 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2713 MonoMethodMessage *msg;
2714 MonoTransparentProxy *this;
2715 MonoObject *res, *exc;
2716 MonoArray *out_args;
2718 this = *((MonoTransparentProxy **)params [0]);
2721 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2723 /* skip the this pointer */
2726 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2729 MonoMethodSignature *sig = mono_method_signature (method);
2730 int count = sig->param_count;
2731 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2733 for (i=0; i<count; i++) {
2734 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2735 if (class->valuetype) {
2736 if (sig->params [i]->byref) {
2737 mparams[i] = *((gpointer *)params [i]);
2739 /* runtime_invoke expects a boxed instance */
2740 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2741 mparams[i] = mono_nullable_box (params [i], class);
2743 mparams[i] = params [i];
2746 mparams[i] = *((gpointer**)params [i]);
2750 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2753 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2755 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2758 mono_raise_exception ((MonoException *)exc);
2760 mono_method_return_message_restore (method, params, out_args);
2766 mono_marshal_get_remoting_invoke (MonoMethod *method)
2768 MonoMethodSignature *sig;
2769 MonoMethodBuilder *mb;
2775 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2778 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2779 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2780 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2781 g_assert (vtable); /*FIXME do proper error handling*/
2783 if (!vtable->remote) {
2785 return mono_cominterop_get_invoke (method);
2787 g_assert_not_reached ();
2792 sig = mono_signature_no_pinvoke (method);
2794 /* we cant remote methods without this pointer */
2798 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2801 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2802 mb->method->save_lmf = 1;
2804 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2806 mono_mb_emit_ptr (mb, method);
2807 mono_mb_emit_ldloc (mb, params_var);
2808 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2809 emit_thread_interrupt_checkpoint (mb);
2811 if (sig->ret->type == MONO_TYPE_VOID) {
2812 mono_mb_emit_byte (mb, CEE_POP);
2813 mono_mb_emit_byte (mb, CEE_RET);
2815 mono_mb_emit_restore_result (mb, sig->ret);
2818 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2824 /* mono_get_xdomain_marshal_type()
2825 * Returns the kind of marshalling that a type needs for cross domain calls.
2827 static MonoXDomainMarshalType
2828 mono_get_xdomain_marshal_type (MonoType *t)
2831 case MONO_TYPE_VOID:
2832 g_assert_not_reached ();
2836 case MONO_TYPE_BOOLEAN:
2839 case MONO_TYPE_CHAR:
2846 return MONO_MARSHAL_NONE;
2847 case MONO_TYPE_STRING:
2848 return MONO_MARSHAL_COPY;
2849 case MONO_TYPE_ARRAY:
2850 case MONO_TYPE_SZARRAY: {
2851 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2852 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2853 return MONO_MARSHAL_COPY;
2858 return MONO_MARSHAL_SERIALIZE;
2862 /* mono_marshal_xdomain_copy_value
2863 * Makes a copy of "val" suitable for the current domain.
2866 mono_marshal_xdomain_copy_value (MonoObject *val)
2869 if (val == NULL) return NULL;
2871 domain = mono_domain_get ();
2873 switch (mono_object_class (val)->byval_arg.type) {
2874 case MONO_TYPE_VOID:
2875 g_assert_not_reached ();
2879 case MONO_TYPE_BOOLEAN:
2882 case MONO_TYPE_CHAR:
2888 case MONO_TYPE_R8: {
2889 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2891 case MONO_TYPE_STRING: {
2892 MonoString *str = (MonoString *) val;
2893 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2895 case MONO_TYPE_ARRAY:
2896 case MONO_TYPE_SZARRAY: {
2898 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2899 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2900 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2901 if (mt == MONO_MARSHAL_COPY) {
2902 int i, len = mono_array_length (acopy);
2903 for (i = 0; i < len; i++) {
2904 MonoObject *item = mono_array_get (acopy, gpointer, i);
2905 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2908 return (MonoObject *) acopy;
2912 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2913 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2914 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2915 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2916 newsb->length = oldsb->length;
2917 newsb->max_capacity = (gint32)0x7fffffff;
2918 return (MonoObject *) newsb;
2923 /* mono_marshal_xdomain_copy_out_value()
2924 * Copies the contents of the src instance into the dst instance. src and dst
2925 * must have the same type, and if they are arrays, the same size.
2928 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2930 if (src == NULL || dst == NULL) return;
2932 g_assert (mono_object_class (src) == mono_object_class (dst));
2934 switch (mono_object_class (src)->byval_arg.type) {
2935 case MONO_TYPE_ARRAY:
2936 case MONO_TYPE_SZARRAY: {
2937 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2938 if (mt == MONO_MARSHAL_SERIALIZE) return;
2939 if (mt == MONO_MARSHAL_COPY) {
2940 int i, len = mono_array_length ((MonoArray *)dst);
2941 for (i = 0; i < len; i++) {
2942 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2943 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2946 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2952 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2953 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2954 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2956 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)));
2957 dst_sb->cached_str = NULL;
2958 dst_sb->length = src_sb->length;
2963 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2965 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2966 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2970 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2972 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2975 /* mono_marshal_supports_fast_xdomain()
2976 * Returns TRUE if the method can use the fast xdomain wrapper.
2979 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2981 return !method->klass->contextbound &&
2982 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2986 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2988 MonoDomain *current_domain = mono_domain_get ();
2989 MonoDomain *domain = mono_domain_get_by_id (id);
2991 if (!domain || !mono_domain_set (domain, FALSE))
2992 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2995 mono_thread_push_appdomain_ref (domain);
2997 mono_thread_pop_appdomain_ref ();
2999 return current_domain->domain_id;
3003 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3005 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3008 /* mono_marshal_emit_load_domain_method ()
3009 * Loads into the stack a pointer to the code of the provided method for
3010 * the current domain.
3013 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3015 /* We need a pointer to the method for the running domain (not the domain
3016 * that compiles the method).
3018 mono_mb_emit_ptr (mb, method);
3019 mono_mb_emit_icall (mb, mono_compile_method);
3022 /* mono_marshal_check_domain_image ()
3023 * Returns TRUE if the image is loaded in the specified
3024 * application domain.
3027 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3032 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3036 mono_domain_assemblies_lock (domain);
3037 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3039 if (ass->image == image)
3042 mono_domain_assemblies_unlock (domain);
3047 /* mono_marshal_get_xappdomain_dispatch ()
3048 * Generates a method that dispatches a method call from another domain into
3049 * the current domain.
3052 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3054 MonoMethodSignature *sig, *csig;
3055 MonoMethodBuilder *mb;
3057 int i, j, param_index, copy_locals_base;
3058 MonoClass *ret_class = NULL;
3059 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3060 MonoExceptionClause *main_clause;
3062 gboolean copy_return;
3064 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3067 sig = mono_method_signature (method);
3068 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3071 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3072 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3073 csig->params [j++] = &byte_array_class->this_arg;
3074 csig->params [j++] = &byte_array_class->this_arg;
3075 for (i = 0; i < sig->param_count; i++) {
3076 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3077 csig->params [j++] = sig->params [i];
3080 csig->ret = sig->ret;
3082 csig->ret = &mono_defaults.void_class->byval_arg;
3084 csig->hasthis = FALSE;
3086 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3087 mb->method->save_lmf = 1;
3091 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3092 if (complex_count > 0)
3093 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3094 if (sig->ret->type != MONO_TYPE_VOID) {
3095 loc_return = mono_mb_add_local (mb, sig->ret);
3096 ret_class = mono_class_from_mono_type (sig->ret);
3101 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3102 main_clause->try_offset = mono_mb_get_label (mb);
3104 /* Clean the call context */
3106 mono_mb_emit_byte (mb, CEE_LDNULL);
3107 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3108 mono_mb_emit_byte (mb, CEE_POP);
3110 /* Deserialize call data */
3112 mono_mb_emit_ldarg (mb, 1);
3113 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3114 mono_mb_emit_byte (mb, CEE_DUP);
3115 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3117 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3118 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3120 if (complex_count > 0)
3121 mono_mb_emit_stloc (mb, loc_array);
3123 mono_mb_emit_byte (mb, CEE_POP);
3125 mono_mb_patch_short_branch (mb, pos);
3127 /* Get the target object */
3129 mono_mb_emit_ldarg (mb, 0);
3130 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3132 /* Load the arguments */
3134 copy_locals_base = mb->locals;
3135 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3137 for (i = 0; i < sig->param_count; i++) {
3138 MonoType *pt = sig->params [i];
3139 MonoClass *pclass = mono_class_from_mono_type (pt);
3140 switch (marshal_types [i]) {
3141 case MONO_MARSHAL_SERIALIZE: {
3142 /* take the value from the serialized array */
3143 mono_mb_emit_ldloc (mb, loc_array);
3144 mono_mb_emit_icon (mb, j++);
3146 if (pclass->valuetype) {
3147 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3148 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3150 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3153 if (pclass->valuetype) {
3154 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3155 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3156 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3158 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3159 if (pclass != mono_defaults.object_class) {
3160 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3166 case MONO_MARSHAL_COPY_OUT: {
3167 /* Keep a local copy of the value since we need to copy it back after the call */
3168 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3169 mono_mb_emit_ldarg (mb, param_index++);
3170 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3171 mono_mb_emit_byte (mb, CEE_DUP);
3172 mono_mb_emit_stloc (mb, copy_local);
3175 case MONO_MARSHAL_COPY: {
3176 mono_mb_emit_ldarg (mb, param_index);
3178 mono_mb_emit_byte (mb, CEE_DUP);
3179 mono_mb_emit_byte (mb, CEE_DUP);
3180 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3181 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3182 mono_mb_emit_byte (mb, CEE_STIND_REF);
3184 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3189 case MONO_MARSHAL_NONE:
3190 mono_mb_emit_ldarg (mb, param_index++);
3195 /* Make the call to the real object */
3197 emit_thread_force_interrupt_checkpoint (mb);
3199 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3201 if (sig->ret->type != MONO_TYPE_VOID)
3202 mono_mb_emit_stloc (mb, loc_return);
3204 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3208 for (i = 0; i < sig->param_count; i++) {
3209 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3210 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3211 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3212 mono_mb_emit_ldarg (mb, param_index);
3213 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3218 /* Serialize the return values */
3220 if (complex_out_count > 0) {
3221 /* Reset parameters in the array that don't need to be serialized back */
3223 for (i = 0; i < sig->param_count; i++) {
3224 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3225 if (!sig->params [i]->byref) {
3226 mono_mb_emit_ldloc (mb, loc_array);
3227 mono_mb_emit_icon (mb, j);
3228 mono_mb_emit_byte (mb, CEE_LDNULL);
3229 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3234 /* Add the return value to the array */
3236 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3237 mono_mb_emit_ldloc (mb, loc_array);
3238 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3239 mono_mb_emit_ldloc (mb, loc_return);
3241 g_assert (ret_class); /*FIXME properly fail here*/
3242 if (ret_class->valuetype) {
3243 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3245 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3250 mono_mb_emit_ldarg (mb, 1);
3251 mono_mb_emit_ldloc (mb, loc_array);
3252 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3253 mono_mb_emit_byte (mb, CEE_STIND_REF);
3254 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3255 mono_mb_emit_ldarg (mb, 1);
3256 mono_mb_emit_ldloc (mb, loc_return);
3257 if (ret_class->valuetype) {
3258 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3260 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3261 mono_mb_emit_byte (mb, CEE_STIND_REF);
3263 mono_mb_emit_ldarg (mb, 1);
3264 mono_mb_emit_byte (mb, CEE_LDNULL);
3265 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3266 mono_mb_emit_byte (mb, CEE_STIND_REF);
3269 mono_mb_emit_ldarg (mb, 2);
3270 mono_mb_emit_byte (mb, CEE_LDNULL);
3271 mono_mb_emit_byte (mb, CEE_STIND_REF);
3272 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3274 /* Main exception catch */
3275 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3276 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3277 main_clause->data.catch_class = mono_defaults.object_class;
3280 main_clause->handler_offset = mono_mb_get_label (mb);
3281 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3282 mono_mb_emit_stloc (mb, loc_serialized_exc);
3283 mono_mb_emit_ldarg (mb, 2);
3284 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3285 mono_mb_emit_byte (mb, CEE_STIND_REF);
3286 mono_mb_emit_branch (mb, CEE_LEAVE);
3287 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3290 mono_mb_patch_branch (mb, pos_leave);
3293 mono_mb_emit_ldloc (mb, loc_return);
3295 mono_mb_emit_byte (mb, CEE_RET);
3297 mono_mb_set_clauses (mb, 1, main_clause);
3299 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3305 /* mono_marshal_get_xappdomain_invoke ()
3306 * Generates a fast remoting wrapper for cross app domain calls.
3309 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3311 MonoMethodSignature *sig;
3312 MonoMethodBuilder *mb;
3314 int i, j, complex_count, complex_out_count, copy_locals_base;
3316 MonoClass *ret_class = NULL;
3317 MonoMethod *xdomain_method;
3318 int ret_marshal_type = MONO_MARSHAL_NONE;
3319 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3320 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3321 int pos, pos_dispatch, pos_noex;
3322 gboolean copy_return = FALSE;
3326 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3329 /* we cant remote methods without this pointer */
3330 if (!mono_method_signature (method)->hasthis)
3333 if (!mono_marshal_supports_fast_xdomain (method))
3334 return mono_marshal_get_remoting_invoke (method);
3336 mono_remoting_marshal_init ();
3338 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3341 sig = mono_signature_no_pinvoke (method);
3343 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3344 mb->method->save_lmf = 1;
3346 /* Count the number of parameters that need to be serialized */
3348 marshal_types = alloca (sizeof (int) * sig->param_count);
3349 complex_count = complex_out_count = 0;
3350 for (i = 0; i < sig->param_count; i++) {
3351 MonoType *ptype = sig->params[i];
3352 int mt = mono_get_xdomain_marshal_type (ptype);
3354 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3355 * the copy will be made by reusing the original object instance
3357 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3358 mt = MONO_MARSHAL_COPY_OUT;
3359 else if (mt == MONO_MARSHAL_SERIALIZE) {
3361 if (ptype->byref) complex_out_count++;
3363 marshal_types [i] = mt;
3366 if (sig->ret->type != MONO_TYPE_VOID) {
3367 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3368 ret_class = mono_class_from_mono_type (sig->ret);
3369 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3374 if (complex_count > 0)
3375 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3376 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3377 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3379 loc_return = mono_mb_add_local (mb, sig->ret);
3380 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3381 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3382 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3383 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3385 /* Save thread domain data */
3387 mono_mb_emit_icall (mb, mono_context_get);
3388 mono_mb_emit_byte (mb, CEE_DUP);
3389 mono_mb_emit_stloc (mb, loc_context);
3391 /* If the thread is not running in the default context, it needs to go
3392 * through the whole remoting sink, since the context is going to change
3394 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3395 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3397 /* Another case in which the fast path can't be used: when the target domain
3398 * has a different image for the same assembly.
3401 /* Get the target domain id */
3403 mono_mb_emit_ldarg (mb, 0);
3404 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3405 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3406 mono_mb_emit_byte (mb, CEE_DUP);
3407 mono_mb_emit_stloc (mb, loc_real_proxy);
3409 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3410 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3411 mono_mb_emit_stloc (mb, loc_domainid);
3413 /* Check if the target domain has the same image for the required assembly */
3415 mono_mb_emit_ldloc (mb, loc_domainid);
3416 mono_mb_emit_ptr (mb, method->klass->image);
3417 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3418 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3420 /* Use the whole remoting sink to dispatch this message */
3422 mono_mb_patch_short_branch (mb, pos);
3424 mono_mb_emit_ldarg (mb, 0);
3425 for (i = 0; i < sig->param_count; i++)
3426 mono_mb_emit_ldarg (mb, i + 1);
3428 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3429 mono_mb_emit_byte (mb, CEE_RET);
3430 mono_mb_patch_short_branch (mb, pos_dispatch);
3432 /* Create the array that will hold the parameters to be serialized */
3434 if (complex_count > 0) {
3435 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 */
3436 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3439 for (i = 0; i < sig->param_count; i++) {
3441 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3442 pclass = mono_class_from_mono_type (sig->params[i]);
3443 mono_mb_emit_byte (mb, CEE_DUP);
3444 mono_mb_emit_icon (mb, j);
3445 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3446 if (sig->params[i]->byref) {
3447 if (pclass->valuetype)
3448 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3450 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3452 if (pclass->valuetype)
3453 mono_mb_emit_op (mb, CEE_BOX, pclass);
3454 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3457 mono_mb_emit_stloc (mb, loc_array);
3459 /* Serialize parameters */
3461 mono_mb_emit_ldloc (mb, loc_array);
3462 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3463 mono_mb_emit_stloc (mb, loc_serialized_data);
3465 mono_mb_emit_byte (mb, CEE_LDNULL);
3466 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3467 mono_mb_emit_stloc (mb, loc_serialized_data);
3472 mono_mb_emit_ldloc (mb, loc_domainid);
3473 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3474 mono_marshal_emit_switch_domain (mb);
3475 mono_mb_emit_stloc (mb, loc_old_domainid);
3477 /* Load the arguments */
3479 mono_mb_emit_ldloc (mb, loc_real_proxy);
3480 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3481 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3483 copy_locals_base = mb->locals;
3484 for (i = 0; i < sig->param_count; i++) {
3485 switch (marshal_types [i]) {
3486 case MONO_MARSHAL_SERIALIZE:
3488 case MONO_MARSHAL_COPY: {
3489 mono_mb_emit_ldarg (mb, i+1);
3490 if (sig->params [i]->byref) {
3491 /* make a local copy of the byref parameter. The real parameter
3492 * will be updated after the xdomain call
3494 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3495 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3496 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3497 mono_mb_emit_stloc (mb, copy_local);
3498 mono_mb_emit_ldloc_addr (mb, copy_local);
3502 case MONO_MARSHAL_COPY_OUT:
3503 case MONO_MARSHAL_NONE:
3504 mono_mb_emit_ldarg (mb, i+1);
3509 /* Make the call to the invoke wrapper in the target domain */
3511 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3512 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3513 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3516 mono_mb_emit_stloc (mb, loc_return);
3520 mono_mb_emit_ldloc (mb, loc_old_domainid);
3521 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3522 mono_marshal_emit_switch_domain (mb);
3523 mono_mb_emit_byte (mb, CEE_POP);
3525 /* Restore thread domain data */
3527 mono_mb_emit_ldloc (mb, loc_context);
3528 mono_mb_emit_icall (mb, mono_context_set);
3530 /* if (loc_serialized_exc != null) ... */
3532 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3533 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3535 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3536 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3537 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3538 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3539 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3540 mono_mb_emit_byte (mb, CEE_THROW);
3541 mono_mb_patch_short_branch (mb, pos_noex);
3543 /* copy back non-serialized output parameters */
3546 for (i = 0; i < sig->param_count; i++) {
3547 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3548 mono_mb_emit_ldarg (mb, i + 1);
3549 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3550 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3551 mono_mb_emit_byte (mb, CEE_STIND_REF);
3554 /* Deserialize out parameters */
3556 if (complex_out_count > 0) {
3557 mono_mb_emit_ldloc (mb, loc_serialized_data);
3558 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3559 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3560 mono_mb_emit_stloc (mb, loc_array);
3562 /* Copy back output parameters and return type */
3565 for (i = 0; i < sig->param_count; i++) {
3566 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3567 if (sig->params[i]->byref) {
3568 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3569 mono_mb_emit_ldarg (mb, i + 1);
3570 mono_mb_emit_ldloc (mb, loc_array);
3571 mono_mb_emit_icon (mb, j);
3572 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3573 if (pclass->valuetype) {
3574 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3575 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3576 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3578 if (pclass != mono_defaults.object_class)
3579 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3580 mono_mb_emit_byte (mb, CEE_STIND_REF);
3586 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3587 mono_mb_emit_ldloc (mb, loc_array);
3588 mono_mb_emit_icon (mb, complex_count);
3589 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3590 if (ret_class->valuetype) {
3591 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3592 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3595 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3596 mono_mb_emit_ldloc (mb, loc_serialized_data);
3597 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3598 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3599 if (ret_class->valuetype) {
3600 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3601 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3602 } else if (ret_class != mono_defaults.object_class) {
3603 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3606 mono_mb_emit_ldloc (mb, loc_serialized_data);
3607 mono_mb_emit_byte (mb, CEE_DUP);
3608 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3609 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3611 mono_mb_patch_short_branch (mb, pos);
3612 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3613 mono_mb_emit_byte (mb, CEE_POP);
3617 mono_mb_emit_ldloc (mb, loc_return);
3618 if (ret_marshal_type == MONO_MARSHAL_COPY)
3619 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3622 mono_mb_emit_byte (mb, CEE_RET);
3624 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3631 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3633 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3634 return mono_marshal_get_xappdomain_invoke (method);
3635 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3637 return mono_cominterop_get_invoke (method);
3639 g_assert_not_reached ();
3642 return mono_marshal_get_remoting_invoke (method);
3648 G_GNUC_UNUSED static gpointer
3649 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3651 if (rp->target_domain_id != -1)
3652 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3654 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3658 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3660 MonoMethodSignature *sig;
3661 MonoMethodBuilder *mb;
3662 MonoMethod *res, *native;
3663 int i, pos, pos_rem;
3667 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3670 /* we cant remote methods without this pointer */
3671 g_assert (mono_method_signature (method)->hasthis);
3673 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3676 sig = mono_signature_no_pinvoke (method);
3678 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3680 for (i = 0; i <= sig->param_count; i++)
3681 mono_mb_emit_ldarg (mb, i);
3683 mono_mb_emit_ldarg (mb, 0);
3684 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3686 if (mono_marshal_supports_fast_xdomain (method)) {
3687 mono_mb_emit_ldarg (mb, 0);
3688 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3690 /* wrapper for cross app domain calls */
3691 native = mono_marshal_get_xappdomain_invoke (method);
3692 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3693 mono_mb_emit_byte (mb, CEE_RET);
3695 mono_mb_patch_branch (mb, pos_rem);
3697 /* wrapper for normal remote calls */
3698 native = mono_marshal_get_remoting_invoke (method);
3699 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3700 mono_mb_emit_byte (mb, CEE_RET);
3703 mono_mb_patch_branch (mb, pos);
3704 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3705 mono_mb_emit_byte (mb, CEE_RET);
3707 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3715 MonoMethodSignature *sig;
3717 } SignatureMethodPair;
3720 signature_method_pair_hash (gconstpointer data)
3722 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3724 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3728 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3730 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3734 free_signature_method_pair (SignatureMethodPair *pair)
3740 * the returned method invokes all methods in a multicast delegate.
3743 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3745 MonoMethodSignature *sig, *static_sig;
3747 MonoMethodBuilder *mb;
3748 MonoMethod *res, *newm;
3750 SignatureMethodPair key;
3751 SignatureMethodPair *new_key;
3752 int local_prev, local_target;
3755 MonoMethod *target_method = NULL;
3756 MonoClass *target_class = NULL;
3757 gboolean callvirt = FALSE;
3760 * If the delegate target is null, and the target method is not static, a virtual
3761 * call is made to that method with the first delegate argument as this. This is
3762 * a non-documented .NET feature.
3764 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3766 target_method = del->method;
3767 if (target_method->is_inflated) {
3768 MonoType *target_type;
3770 g_assert (method->signature->hasthis);
3771 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3772 mono_method_get_context (method));
3773 target_class = mono_class_from_mono_type (target_type);
3775 target_class = del->method->klass;
3779 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3780 !strcmp (method->name, "Invoke"));
3782 sig = mono_signature_no_pinvoke (method);
3785 /* We need to cache the signature+method pair */
3786 mono_marshal_lock ();
3787 if (!method->klass->image->delegate_abstract_invoke_cache)
3788 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);
3789 cache = method->klass->image->delegate_abstract_invoke_cache;
3791 key.method = target_method;
3792 res = g_hash_table_lookup (cache, &key);
3793 mono_marshal_unlock ();
3797 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3798 (GHashFunc)mono_signature_hash,
3799 (GCompareFunc)mono_metadata_signature_equal);
3800 if ((res = mono_marshal_find_in_cache (cache, sig)))
3804 static_sig = signature_dup (method->klass->image, sig);
3805 static_sig->hasthis = 0;
3807 name = mono_signature_to_name (sig, "invoke");
3808 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3811 /* allocate local 0 (object) */
3812 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3813 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3815 g_assert (sig->hasthis);
3819 * prev.Invoke( args .. );
3820 * return this.<target>( args .. );
3823 /* this wrapper can be used in unmanaged-managed transitions */
3824 emit_thread_interrupt_checkpoint (mb);
3826 /* get this->prev */
3827 mono_mb_emit_ldarg (mb, 0);
3828 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3829 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3830 mono_mb_emit_stloc (mb, local_prev);
3831 mono_mb_emit_ldloc (mb, local_prev);
3833 /* if prev != null */
3834 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3838 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3839 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3841 mono_mb_emit_ldloc (mb, local_prev);
3842 for (i = 0; i < sig->param_count; i++)
3843 mono_mb_emit_ldarg (mb, i + 1);
3844 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3845 if (sig->ret->type != MONO_TYPE_VOID)
3846 mono_mb_emit_byte (mb, CEE_POP);
3848 /* continued or prev == null */
3849 mono_mb_patch_branch (mb, pos0);
3851 /* get this->target */
3852 mono_mb_emit_ldarg (mb, 0);
3853 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3854 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3855 mono_mb_emit_stloc (mb, local_target);
3857 /* if target != null */
3858 mono_mb_emit_ldloc (mb, local_target);
3859 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3861 /* then call this->method_ptr nonstatic */
3864 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3866 mono_mb_emit_ldloc (mb, local_target);
3867 for (i = 0; i < sig->param_count; ++i)
3868 mono_mb_emit_ldarg (mb, i + 1);
3869 mono_mb_emit_ldarg (mb, 0);
3870 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3871 mono_mb_emit_byte (mb, CEE_LDIND_I );
3872 mono_mb_emit_op (mb, CEE_CALLI, sig);
3874 mono_mb_emit_byte (mb, CEE_RET);
3877 /* else [target == null] call this->method_ptr static */
3878 mono_mb_patch_branch (mb, pos0);
3881 mono_mb_emit_ldarg (mb, 1);
3882 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3883 for (i = 1; i < sig->param_count; ++i)
3884 mono_mb_emit_ldarg (mb, i + 1);
3885 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3887 for (i = 0; i < sig->param_count; ++i)
3888 mono_mb_emit_ldarg (mb, i + 1);
3889 mono_mb_emit_ldarg (mb, 0);
3890 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3891 mono_mb_emit_byte (mb, CEE_LDIND_I );
3892 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3895 mono_mb_emit_byte (mb, CEE_RET);
3898 // From mono_mb_create_and_cache
3899 mb->skip_visibility = 1;
3900 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3901 /*We perform double checked locking, so must fence before publishing*/
3902 mono_memory_barrier ();
3903 mono_marshal_lock ();
3904 res = g_hash_table_lookup (cache, &key);
3907 new_key = g_new0 (SignatureMethodPair, 1);
3909 new_key->method = target_method;
3910 g_hash_table_insert (cache, new_key, res);
3911 mono_marshal_set_wrapper_info (res, new_key);
3912 mono_marshal_unlock ();
3914 mono_marshal_unlock ();
3915 mono_free_method (newm);
3918 mb->skip_visibility = 1;
3919 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3927 * signature_dup_add_this:
3929 * Make a copy of @sig, adding an explicit this argument.
3931 static MonoMethodSignature*
3932 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3934 MonoMethodSignature *res;
3937 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3938 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
3939 res->param_count = sig->param_count + 1;
3940 res->hasthis = FALSE;
3941 for (i = sig->param_count - 1; i >= 0; i --)
3942 res->params [i + 1] = sig->params [i];
3943 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3949 MonoMethodSignature *ctor_sig;
3950 MonoMethodSignature *sig;
3953 /* protected by the marshal lock, contains CtorSigPair pointers */
3954 static GSList *strsig_list = NULL;
3956 static MonoMethodSignature *
3957 lookup_string_ctor_signature (MonoMethodSignature *sig)
3959 MonoMethodSignature *callsig;
3963 mono_marshal_lock ();
3965 for (item = strsig_list; item; item = item->next) {
3967 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3968 * because it is lock-free.
3970 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3975 mono_marshal_unlock ();
3979 static MonoMethodSignature *
3980 add_string_ctor_signature (MonoMethod *method)
3982 MonoMethodSignature *callsig;
3985 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3986 callsig->ret = &mono_defaults.string_class->byval_arg;
3987 cs = g_new (CtorSigPair, 1);
3989 cs->ctor_sig = mono_method_signature (method);
3991 mono_marshal_lock ();
3992 strsig_list = g_slist_prepend (strsig_list, cs);
3993 mono_marshal_unlock ();
3998 * mono_marshal_get_string_ctor_signature:
4000 * Return the modified signature used by string ctors (they return the newly created
4003 MonoMethodSignature*
4004 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4006 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4008 sig = add_string_ctor_signature (method);
4014 get_runtime_invoke_type (MonoType *t, gboolean ret)
4017 /* Can't share this with 'I' as that needs another indirection */
4020 if (MONO_TYPE_IS_REFERENCE (t))
4021 return &mono_defaults.object_class->byval_arg;
4024 /* The result needs to be boxed */
4030 return &mono_defaults.sbyte_class->byval_arg;
4032 return &mono_defaults.int16_class->byval_arg;
4034 return &mono_defaults.int32_class->byval_arg;
4036 return &mono_defaults.int64_class->byval_arg;
4037 case MONO_TYPE_BOOLEAN:
4038 return &mono_defaults.sbyte_class->byval_arg;
4039 case MONO_TYPE_CHAR:
4040 return &mono_defaults.int16_class->byval_arg;
4043 return &mono_defaults.int_class->byval_arg;
4044 case MONO_TYPE_VALUETYPE:
4045 if (t->data.klass->enumtype) {
4046 t = mono_class_enum_basetype (t->data.klass);
4056 * mono_marshal_get_runtime_invoke_sig:
4058 * Return a common signature used for sharing runtime invoke wrappers.
4060 static MonoMethodSignature*
4061 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4063 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4066 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4067 for (i = 0; i < res->param_count; ++i)
4068 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4074 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4076 /* Can't share wrappers which return a vtype since it needs to be boxed */
4077 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))
4080 return mono_metadata_signature_equal (sig1, sig2);
4084 * generates IL code for the runtime invoke function
4085 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4087 * we also catch exceptions if exc != null
4088 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4089 * it means that the compiled code for METHOD does not have to be looked up
4090 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4091 * its METHOD argument.
4094 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4096 MonoMethodSignature *sig, *csig, *callsig;
4097 MonoExceptionClause *clause;
4098 MonoMethodBuilder *mb;
4099 GHashTable *cache = NULL;
4100 MonoClass *target_klass;
4101 MonoMethod *res = NULL;
4102 static MonoString *string_dummy = NULL;
4103 static MonoMethodSignature *cctor_signature = NULL;
4104 static MonoMethodSignature *finalize_signature = NULL;
4107 gboolean need_direct_wrapper = FALSE;
4108 int *tmp_nullable_locals;
4112 if (!cctor_signature) {
4113 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4114 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4116 if (!finalize_signature) {
4117 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4118 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4119 finalize_signature->hasthis = 1;
4123 need_direct_wrapper = TRUE;
4126 * Use a separate cache indexed by methods to speed things up and to avoid the
4127 * boundless mempool growth caused by the signature_dup stuff below.
4130 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4132 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4133 res = mono_marshal_find_in_cache (cache, method);
4137 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4138 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4140 * Array Get/Set/Address methods. The JIT implements them using inline code
4141 * so we need to create an invoke wrapper which calls the method directly.
4143 need_direct_wrapper = TRUE;
4146 if (method->string_ctor) {
4147 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4149 callsig = add_string_ctor_signature (method);
4150 /* Can't share this as we push a string as this */
4151 need_direct_wrapper = TRUE;
4153 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4155 * Valuetype methods receive a managed pointer as the this argument.
4156 * Create a new signature to reflect this.
4158 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4159 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4160 need_direct_wrapper = TRUE;
4162 if (method->dynamic)
4163 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4165 callsig = mono_method_signature (method);
4169 target_klass = get_wrapper_target_class (method->klass->image);
4171 /* Try to share wrappers for non-corlib methods with simple signatures */
4172 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4173 callsig = cctor_signature;
4174 target_klass = mono_defaults.object_class;
4175 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4176 callsig = finalize_signature;
4177 target_klass = mono_defaults.object_class;
4180 if (need_direct_wrapper) {
4181 /* Already searched at the start */
4183 MonoMethodSignature *tmp_sig;
4185 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4187 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4188 (GHashFunc)mono_signature_hash,
4189 (GCompareFunc)runtime_invoke_signature_equal);
4191 /* from mono_marshal_find_in_cache */
4192 mono_marshal_lock ();
4193 res = g_hash_table_lookup (cache, callsig);
4194 mono_marshal_unlock ();
4201 /* Make a copy of the signature from the image mempool */
4203 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4207 /* to make it work with our special string constructors */
4208 if (!string_dummy) {
4209 MONO_GC_REGISTER_ROOT (string_dummy);
4210 string_dummy = mono_string_new_wrapper ("dummy");
4213 sig = mono_method_signature (method);
4215 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4217 csig->ret = &mono_defaults.object_class->byval_arg;
4218 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4219 csig->params [0] = callsig->params [0];
4221 csig->params [0] = &mono_defaults.object_class->byval_arg;
4222 csig->params [1] = &mono_defaults.int_class->byval_arg;
4223 csig->params [2] = &mono_defaults.int_class->byval_arg;
4224 csig->params [3] = &mono_defaults.int_class->byval_arg;
4226 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4227 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4230 /* allocate local 0 (object) tmp */
4231 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4232 /* allocate local 1 (object) exc */
4233 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4235 /* cond set *exc to null */
4236 mono_mb_emit_byte (mb, CEE_LDARG_2);
4237 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4238 mono_mb_emit_byte (mb, 3);
4239 mono_mb_emit_byte (mb, CEE_LDARG_2);
4240 mono_mb_emit_byte (mb, CEE_LDNULL);
4241 mono_mb_emit_byte (mb, CEE_STIND_REF);
4243 emit_thread_force_interrupt_checkpoint (mb);
4246 g_assert (sig->hasthis);
4247 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4251 if (method->string_ctor) {
4252 mono_mb_emit_ptr (mb, string_dummy);
4254 mono_mb_emit_ldarg (mb, 0);
4258 tmp_nullable_locals = g_new0 (int, sig->param_count);
4260 for (i = 0; i < sig->param_count; i++) {
4261 MonoType *t = sig->params [i];
4264 mono_mb_emit_ldarg (mb, 1);
4266 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4267 mono_mb_emit_byte (mb, CEE_ADD);
4271 mono_mb_emit_byte (mb, CEE_LDIND_I);
4272 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4273 * So to make this work we unbox it to a local variablee and push a reference to that.
4275 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4276 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4278 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4279 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4280 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4285 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4286 type = sig->params [i]->type;
4290 case MONO_TYPE_BOOLEAN:
4294 case MONO_TYPE_CHAR:
4303 mono_mb_emit_byte (mb, CEE_LDIND_I);
4304 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4306 case MONO_TYPE_STRING:
4307 case MONO_TYPE_CLASS:
4308 case MONO_TYPE_ARRAY:
4310 case MONO_TYPE_SZARRAY:
4311 case MONO_TYPE_OBJECT:
4312 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4314 case MONO_TYPE_GENERICINST:
4315 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4316 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4321 case MONO_TYPE_VALUETYPE:
4322 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4323 type = mono_class_enum_basetype (t->data.klass)->type;
4326 mono_mb_emit_byte (mb, CEE_LDIND_I);
4327 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4328 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4329 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4330 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4332 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4336 g_assert_not_reached ();
4341 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4342 } else if (need_direct_wrapper) {
4343 mono_mb_emit_op (mb, CEE_CALL, method);
4345 mono_mb_emit_ldarg (mb, 3);
4346 mono_mb_emit_calli (mb, callsig);
4349 if (sig->ret->byref) {
4351 g_assert_not_reached ();
4354 switch (sig->ret->type) {
4355 case MONO_TYPE_VOID:
4356 if (!method->string_ctor)
4357 mono_mb_emit_byte (mb, CEE_LDNULL);
4359 case MONO_TYPE_BOOLEAN:
4360 case MONO_TYPE_CHAR:
4373 case MONO_TYPE_VALUETYPE:
4374 case MONO_TYPE_TYPEDBYREF:
4375 case MONO_TYPE_GENERICINST:
4376 /* box value types */
4377 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4379 case MONO_TYPE_STRING:
4380 case MONO_TYPE_CLASS:
4381 case MONO_TYPE_ARRAY:
4382 case MONO_TYPE_SZARRAY:
4383 case MONO_TYPE_OBJECT:
4387 /* The result is an IntPtr */
4388 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4391 g_assert_not_reached ();
4394 mono_mb_emit_stloc (mb, 0);
4396 /* Convert back nullable-byref arguments */
4397 for (i = 0; i < sig->param_count; i++) {
4398 MonoType *t = sig->params [i];
4401 * Box the result and put it back into the array, the caller will have
4402 * to obtain it from there.
4404 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4405 mono_mb_emit_ldarg (mb, 1);
4406 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4407 mono_mb_emit_byte (mb, CEE_ADD);
4409 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4410 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4412 mono_mb_emit_byte (mb, CEE_STIND_REF);
4416 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4418 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4419 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4420 clause->try_len = mono_mb_get_label (mb);
4423 clause->data.filter_offset = mono_mb_get_label (mb);
4425 mono_mb_emit_byte (mb, CEE_POP);
4426 mono_mb_emit_byte (mb, CEE_LDARG_2);
4427 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4428 mono_mb_emit_byte (mb, CEE_PREFIX1);
4429 mono_mb_emit_byte (mb, CEE_CGT_UN);
4430 mono_mb_emit_byte (mb, CEE_PREFIX1);
4431 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4433 clause->handler_offset = mono_mb_get_label (mb);
4436 /* store exception */
4437 mono_mb_emit_stloc (mb, 1);
4439 mono_mb_emit_byte (mb, CEE_LDARG_2);
4440 mono_mb_emit_ldloc (mb, 1);
4441 mono_mb_emit_byte (mb, CEE_STIND_REF);
4443 mono_mb_emit_byte (mb, CEE_LDNULL);
4444 mono_mb_emit_stloc (mb, 0);
4446 mono_mb_emit_branch (mb, CEE_LEAVE);
4448 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4450 mono_mb_set_clauses (mb, 1, clause);
4453 mono_mb_patch_branch (mb, pos);
4454 mono_mb_emit_ldloc (mb, 0);
4455 mono_mb_emit_byte (mb, CEE_RET);
4457 g_free (tmp_nullable_locals);
4459 if (need_direct_wrapper) {
4460 mb->skip_visibility = 1;
4461 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4463 /* taken from mono_mb_create_and_cache */
4464 mono_marshal_lock ();
4465 res = g_hash_table_lookup (cache, callsig);
4466 mono_marshal_unlock ();
4468 /* Somebody may have created it before us */
4471 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4473 mono_marshal_lock ();
4474 res = g_hash_table_lookup (cache, callsig);
4477 g_hash_table_insert (cache, callsig, res);
4478 /* Can't insert it into wrapper_hash since the key is a signature */
4479 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4481 mono_free_method (newm);
4483 mono_marshal_unlock ();
4486 /* end mono_mb_create_and_cache */
4495 * mono_marshal_get_runtime_invoke_dynamic:
4497 * Return a method which can be used to invoke managed methods from native code
4499 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4500 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4501 * ARGS should point to an architecture specific structure containing
4502 * the arguments and space for the return value.
4503 * The other arguments are the same as for runtime_invoke (), except that
4504 * ARGS should contain the this argument too.
4505 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4506 * is only one copy of it, which is useful in full-aot.
4509 mono_marshal_get_runtime_invoke_dynamic (void)
4511 static MonoMethod *method;
4512 MonoMethodSignature *csig;
4513 MonoExceptionClause *clause;
4514 MonoMethodBuilder *mb;
4521 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4523 csig->ret = &mono_defaults.void_class->byval_arg;
4524 csig->params [0] = &mono_defaults.int_class->byval_arg;
4525 csig->params [1] = &mono_defaults.int_class->byval_arg;
4526 csig->params [2] = &mono_defaults.int_class->byval_arg;
4527 csig->params [3] = &mono_defaults.int_class->byval_arg;
4529 name = g_strdup ("runtime_invoke_dynamic");
4530 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4533 /* allocate local 0 (object) tmp */
4534 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4535 /* allocate local 1 (object) exc */
4536 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4538 /* cond set *exc to null */
4539 mono_mb_emit_byte (mb, CEE_LDARG_1);
4540 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4541 mono_mb_emit_byte (mb, 3);
4542 mono_mb_emit_byte (mb, CEE_LDARG_1);
4543 mono_mb_emit_byte (mb, CEE_LDNULL);
4544 mono_mb_emit_byte (mb, CEE_STIND_REF);
4546 emit_thread_force_interrupt_checkpoint (mb);
4548 mono_mb_emit_byte (mb, CEE_LDARG_0);
4549 mono_mb_emit_byte (mb, CEE_LDARG_2);
4550 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4551 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4553 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4555 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4556 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4557 clause->try_len = mono_mb_get_label (mb);
4560 clause->data.filter_offset = mono_mb_get_label (mb);
4562 mono_mb_emit_byte (mb, CEE_POP);
4563 mono_mb_emit_byte (mb, CEE_LDARG_1);
4564 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4565 mono_mb_emit_byte (mb, CEE_PREFIX1);
4566 mono_mb_emit_byte (mb, CEE_CGT_UN);
4567 mono_mb_emit_byte (mb, CEE_PREFIX1);
4568 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4570 clause->handler_offset = mono_mb_get_label (mb);
4573 /* store exception */
4574 mono_mb_emit_stloc (mb, 1);
4576 mono_mb_emit_byte (mb, CEE_LDARG_1);
4577 mono_mb_emit_ldloc (mb, 1);
4578 mono_mb_emit_byte (mb, CEE_STIND_REF);
4580 mono_mb_emit_byte (mb, CEE_LDNULL);
4581 mono_mb_emit_stloc (mb, 0);
4583 /* Check for the abort exception */
4584 mono_mb_emit_ldloc (mb, 1);
4585 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4586 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4588 /* Delay the abort exception */
4589 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4591 mono_mb_patch_short_branch (mb, posna);
4592 mono_mb_emit_branch (mb, CEE_LEAVE);
4594 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4596 mono_mb_set_clauses (mb, 1, clause);
4599 mono_mb_patch_branch (mb, pos);
4600 //mono_mb_emit_ldloc (mb, 0);
4601 mono_mb_emit_byte (mb, CEE_RET);
4603 mono_loader_lock ();
4604 /* double-checked locking */
4606 method = mono_mb_create_method (mb, csig, 16);
4608 mono_loader_unlock ();
4616 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4618 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4619 klass->name_space, klass->name);
4621 mono_mb_emit_exception_marshal_directive (mb, msg);
4625 * mono_marshal_get_ldfld_remote_wrapper:
4626 * @klass: The return type
4628 * This method generates a wrapper for calling mono_load_remote_field_new.
4629 * The return type is ignored for now, as mono_load_remote_field_new () always
4630 * returns an object. In the future, to optimize some codepaths, we might
4631 * call a different function that takes a pointer to a valuetype, instead.
4634 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4636 MonoMethodSignature *sig, *csig;
4637 MonoMethodBuilder *mb;
4639 static MonoMethod* cached = NULL;
4641 mono_marshal_lock ();
4643 mono_marshal_unlock ();
4646 mono_marshal_unlock ();
4648 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4650 mb->method->save_lmf = 1;
4652 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4653 sig->params [0] = &mono_defaults.object_class->byval_arg;
4654 sig->params [1] = &mono_defaults.int_class->byval_arg;
4655 sig->params [2] = &mono_defaults.int_class->byval_arg;
4656 sig->ret = &mono_defaults.object_class->byval_arg;
4658 mono_mb_emit_ldarg (mb, 0);
4659 mono_mb_emit_ldarg (mb, 1);
4660 mono_mb_emit_ldarg (mb, 2);
4662 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4663 csig->params [0] = &mono_defaults.object_class->byval_arg;
4664 csig->params [1] = &mono_defaults.int_class->byval_arg;
4665 csig->params [2] = &mono_defaults.int_class->byval_arg;
4666 csig->ret = &mono_defaults.object_class->byval_arg;
4669 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4670 emit_thread_interrupt_checkpoint (mb);
4672 mono_mb_emit_byte (mb, CEE_RET);
4674 mono_marshal_lock ();
4676 mono_marshal_unlock ();
4679 newm = mono_mb_create_method (mb, sig, 4);
4680 mono_marshal_lock ();
4685 mono_marshal_unlock ();
4687 mono_marshal_unlock ();
4688 mono_free_method (newm);
4697 * mono_marshal_get_ldfld_wrapper:
4698 * @type: the type of the field
4700 * This method generates a function which can be use to load a field with type
4701 * @type from an object. The generated function has the following signature:
4702 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4705 mono_marshal_get_ldfld_wrapper (MonoType *type)
4707 MonoMethodSignature *sig;
4708 MonoMethodBuilder *mb;
4713 int t, pos0, pos1 = 0;
4715 type = mono_type_get_underlying_type (type);
4720 if (type->type == MONO_TYPE_SZARRAY) {
4721 klass = mono_defaults.array_class;
4722 } else if (type->type == MONO_TYPE_VALUETYPE) {
4723 klass = type->data.klass;
4724 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4725 klass = mono_defaults.object_class;
4726 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4727 klass = mono_defaults.int_class;
4728 } else if (t == MONO_TYPE_GENERICINST) {
4729 if (mono_type_generic_inst_is_valuetype (type))
4730 klass = mono_class_from_mono_type (type);
4732 klass = mono_defaults.object_class;
4734 klass = mono_class_from_mono_type (type);
4737 klass = mono_defaults.int_class;
4740 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4741 if ((res = mono_marshal_find_in_cache (cache, klass)))
4744 /* we add the %p pointer value of klass because class names are not unique */
4745 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4746 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4749 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4750 sig->params [0] = &mono_defaults.object_class->byval_arg;
4751 sig->params [1] = &mono_defaults.int_class->byval_arg;
4752 sig->params [2] = &mono_defaults.int_class->byval_arg;
4753 sig->params [3] = &mono_defaults.int_class->byval_arg;
4754 sig->ret = &klass->byval_arg;
4756 mono_mb_emit_ldarg (mb, 0);
4757 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4759 mono_mb_emit_ldarg (mb, 0);
4760 mono_mb_emit_ldarg (mb, 1);
4761 mono_mb_emit_ldarg (mb, 2);
4763 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4766 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4767 csig->params [0] = &mono_defaults.object_class->byval_arg;
4768 csig->params [1] = &mono_defaults.int_class->byval_arg;
4769 csig->params [2] = &mono_defaults.int_class->byval_arg;
4770 csig->ret = &klass->this_arg;
4773 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4774 emit_thread_interrupt_checkpoint (mb);
4777 if (klass->valuetype) {
4778 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4779 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4781 mono_mb_emit_byte (mb, CEE_RET);
4785 mono_mb_patch_branch (mb, pos0);
4787 mono_mb_emit_ldarg (mb, 0);
4788 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4789 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4790 mono_mb_emit_ldarg (mb, 3);
4791 mono_mb_emit_byte (mb, CEE_ADD);
4793 if (klass->valuetype)
4794 mono_mb_patch_branch (mb, pos1);
4799 case MONO_TYPE_BOOLEAN:
4800 case MONO_TYPE_CHAR:
4809 case MONO_TYPE_ARRAY:
4810 case MONO_TYPE_SZARRAY:
4811 case MONO_TYPE_OBJECT:
4812 case MONO_TYPE_CLASS:
4813 case MONO_TYPE_STRING:
4817 case MONO_TYPE_FNPTR:
4818 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4820 case MONO_TYPE_VALUETYPE:
4821 g_assert (!klass->enumtype);
4822 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4824 case MONO_TYPE_GENERICINST:
4825 if (mono_type_generic_inst_is_valuetype (type)) {
4826 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4828 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4832 g_warning ("type %x not implemented", type->type);
4833 g_assert_not_reached ();
4836 mono_mb_emit_byte (mb, CEE_RET);
4838 res = mono_mb_create_and_cache (cache, klass,
4839 mb, sig, sig->param_count + 16);
4846 * mono_marshal_get_ldflda_wrapper:
4847 * @type: the type of the field
4849 * This method generates a function which can be used to load a field address
4850 * from an object. The generated function has the following signature:
4851 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4854 mono_marshal_get_ldflda_wrapper (MonoType *type)
4856 MonoMethodSignature *sig;
4857 MonoMethodBuilder *mb;
4862 int t, pos0, pos1, pos2, pos3;
4864 type = mono_type_get_underlying_type (type);
4868 if (type->type == MONO_TYPE_SZARRAY) {
4869 klass = mono_defaults.array_class;
4870 } else if (type->type == MONO_TYPE_VALUETYPE) {
4871 klass = type->data.klass;
4872 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4873 t == MONO_TYPE_CLASS) {
4874 klass = mono_defaults.object_class;
4875 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4876 klass = mono_defaults.int_class;
4877 } else if (t == MONO_TYPE_GENERICINST) {
4878 if (mono_type_generic_inst_is_valuetype (type))
4879 klass = mono_class_from_mono_type (type);
4881 klass = mono_defaults.object_class;
4883 klass = mono_class_from_mono_type (type);
4886 klass = mono_defaults.int_class;
4889 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4890 if ((res = mono_marshal_find_in_cache (cache, klass)))
4893 /* we add the %p pointer value of klass because class names are not unique */
4894 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4895 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4898 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4899 sig->params [0] = &mono_defaults.object_class->byval_arg;
4900 sig->params [1] = &mono_defaults.int_class->byval_arg;
4901 sig->params [2] = &mono_defaults.int_class->byval_arg;
4902 sig->params [3] = &mono_defaults.int_class->byval_arg;
4903 sig->ret = &mono_defaults.int_class->byval_arg;
4905 /* if typeof (this) != transparent_proxy goto pos0 */
4906 mono_mb_emit_ldarg (mb, 0);
4907 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4909 /* if same_appdomain goto pos1 */
4910 mono_mb_emit_ldarg (mb, 0);
4911 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4913 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4915 /* same app domain */
4916 mono_mb_patch_branch (mb, pos1);
4918 /* if typeof (this) != contextbound goto pos2 */
4919 mono_mb_emit_ldarg (mb, 0);
4920 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4922 /* if this->rp->context == mono_context_get goto pos3 */
4923 mono_mb_emit_ldarg (mb, 0);
4924 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4925 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4926 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4927 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4928 mono_mb_emit_icall (mb, mono_context_get);
4929 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4931 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4933 mono_mb_patch_branch (mb, pos2);
4934 mono_mb_patch_branch (mb, pos3);
4936 /* return the address of the field from this->rp->unwrapped_server */
4937 mono_mb_emit_ldarg (mb, 0);
4938 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4939 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4940 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4941 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4942 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4943 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4944 mono_mb_emit_ldarg (mb, 3);
4945 mono_mb_emit_byte (mb, CEE_ADD);
4946 mono_mb_emit_byte (mb, CEE_RET);
4948 /* not a proxy: return the address of the field directly */
4949 mono_mb_patch_branch (mb, pos0);
4951 mono_mb_emit_ldarg (mb, 0);
4952 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4953 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4954 mono_mb_emit_ldarg (mb, 3);
4955 mono_mb_emit_byte (mb, CEE_ADD);
4957 mono_mb_emit_byte (mb, CEE_RET);
4959 res = mono_mb_create_and_cache (cache, klass,
4960 mb, sig, sig->param_count + 16);
4967 * mono_marshal_get_stfld_remote_wrapper:
4968 * klass: The type of the field
4970 * This function generates a wrapper for calling mono_store_remote_field_new
4971 * with the appropriate signature.
4972 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4973 * klass argument anymore.
4976 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4978 MonoMethodSignature *sig, *csig;
4979 MonoMethodBuilder *mb;
4981 static MonoMethod *cached = NULL;
4983 mono_marshal_lock ();
4985 mono_marshal_unlock ();
4988 mono_marshal_unlock ();
4990 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4992 mb->method->save_lmf = 1;
4994 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4995 sig->params [0] = &mono_defaults.object_class->byval_arg;
4996 sig->params [1] = &mono_defaults.int_class->byval_arg;
4997 sig->params [2] = &mono_defaults.int_class->byval_arg;
4998 sig->params [3] = &mono_defaults.object_class->byval_arg;
4999 sig->ret = &mono_defaults.void_class->byval_arg;
5001 mono_mb_emit_ldarg (mb, 0);
5002 mono_mb_emit_ldarg (mb, 1);
5003 mono_mb_emit_ldarg (mb, 2);
5004 mono_mb_emit_ldarg (mb, 3);
5006 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5007 csig->params [0] = &mono_defaults.object_class->byval_arg;
5008 csig->params [1] = &mono_defaults.int_class->byval_arg;
5009 csig->params [2] = &mono_defaults.int_class->byval_arg;
5010 csig->params [3] = &mono_defaults.object_class->byval_arg;
5011 csig->ret = &mono_defaults.void_class->byval_arg;
5014 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5015 emit_thread_interrupt_checkpoint (mb);
5017 mono_mb_emit_byte (mb, CEE_RET);
5019 mono_marshal_lock ();
5021 mono_marshal_unlock ();
5024 newm = mono_mb_create_method (mb, sig, 6);
5025 mono_marshal_lock ();
5030 mono_marshal_unlock ();
5032 mono_marshal_unlock ();
5033 mono_free_method (newm);
5042 * mono_marshal_get_stfld_wrapper:
5043 * @type: the type of the field
5045 * This method generates a function which can be use to store a field with type
5046 * @type. The generated function has the following signature:
5047 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5050 mono_marshal_get_stfld_wrapper (MonoType *type)
5052 MonoMethodSignature *sig;
5053 MonoMethodBuilder *mb;
5060 type = mono_type_get_underlying_type (type);
5064 if (type->type == MONO_TYPE_SZARRAY) {
5065 klass = mono_defaults.array_class;
5066 } else if (type->type == MONO_TYPE_VALUETYPE) {
5067 klass = type->data.klass;
5068 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5069 klass = mono_defaults.object_class;
5070 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5071 klass = mono_defaults.int_class;
5072 } else if (t == MONO_TYPE_GENERICINST) {
5073 if (mono_type_generic_inst_is_valuetype (type))
5074 klass = mono_class_from_mono_type (type);
5076 klass = mono_defaults.object_class;
5078 klass = mono_class_from_mono_type (type);
5081 klass = mono_defaults.int_class;
5084 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5085 if ((res = mono_marshal_find_in_cache (cache, klass)))
5088 /* we add the %p pointer value of klass because class names are not unique */
5089 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5090 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5093 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5094 sig->params [0] = &mono_defaults.object_class->byval_arg;
5095 sig->params [1] = &mono_defaults.int_class->byval_arg;
5096 sig->params [2] = &mono_defaults.int_class->byval_arg;
5097 sig->params [3] = &mono_defaults.int_class->byval_arg;
5098 sig->params [4] = &klass->byval_arg;
5099 sig->ret = &mono_defaults.void_class->byval_arg;
5101 mono_mb_emit_ldarg (mb, 0);
5102 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5104 mono_mb_emit_ldarg (mb, 0);
5105 mono_mb_emit_ldarg (mb, 1);
5106 mono_mb_emit_ldarg (mb, 2);
5107 mono_mb_emit_ldarg (mb, 4);
5108 if (klass->valuetype)
5109 mono_mb_emit_op (mb, CEE_BOX, klass);
5111 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5113 mono_mb_emit_byte (mb, CEE_RET);
5115 mono_mb_patch_branch (mb, pos);
5117 mono_mb_emit_ldarg (mb, 0);
5118 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5119 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5120 mono_mb_emit_ldarg (mb, 3);
5121 mono_mb_emit_byte (mb, CEE_ADD);
5122 mono_mb_emit_ldarg (mb, 4);
5127 case MONO_TYPE_BOOLEAN:
5128 case MONO_TYPE_CHAR:
5137 case MONO_TYPE_ARRAY:
5138 case MONO_TYPE_SZARRAY:
5139 case MONO_TYPE_OBJECT:
5140 case MONO_TYPE_CLASS:
5141 case MONO_TYPE_STRING:
5145 case MONO_TYPE_FNPTR:
5146 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5148 case MONO_TYPE_VALUETYPE:
5149 g_assert (!klass->enumtype);
5150 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5152 case MONO_TYPE_GENERICINST:
5153 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5156 g_warning ("type %x not implemented", type->type);
5157 g_assert_not_reached ();
5160 mono_mb_emit_byte (mb, CEE_RET);
5162 res = mono_mb_create_and_cache (cache, klass,
5163 mb, sig, sig->param_count + 16);
5170 * generates IL code for the icall wrapper (the generated method
5171 * calls the unmanaged code in func)
5174 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5176 MonoMethodSignature *csig, *csig2;
5177 MonoMethodBuilder *mb;
5181 g_assert (sig->pinvoke);
5183 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5185 mb->method->save_lmf = 1;
5187 /* Add an explicit this argument */
5189 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5191 csig2 = signature_dup (mono_defaults.corlib, sig);
5194 mono_mb_emit_byte (mb, CEE_LDARG_0);
5196 for (i = 0; i < sig->param_count; i++)
5197 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5199 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5200 if (check_exceptions)
5201 emit_thread_interrupt_checkpoint (mb);
5202 mono_mb_emit_byte (mb, CEE_RET);
5204 csig = signature_dup (mono_defaults.corlib, sig);
5206 if (csig->call_convention == MONO_CALL_VARARG)
5207 csig->call_convention = 0;
5209 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5216 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5217 MonoMarshalSpec *spec,
5218 int conv_arg, MonoType **conv_arg_type,
5219 MarshalAction action)
5223 static MonoClass *ICustomMarshaler = NULL;
5224 static MonoMethod *cleanup_native, *cleanup_managed;
5225 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5226 MonoMethod *get_instance;
5227 MonoMethodBuilder *mb = m->mb;
5228 char *exception_msg = NULL;
5232 if (!ICustomMarshaler) {
5233 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5234 g_assert (ICustomMarshaler);
5236 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5237 g_assert (cleanup_native);
5238 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5239 g_assert (cleanup_managed);
5240 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5241 g_assert (marshal_managed_to_native);
5242 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5243 g_assert (marshal_native_to_managed);
5246 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5247 g_assert (mtype != NULL);
5248 mklass = mono_class_from_mono_type (mtype);
5249 g_assert (mklass != NULL);
5251 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5252 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5254 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5256 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5257 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5258 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5259 (get_sig->params [0]->type != MONO_TYPE_STRING))
5260 get_instance = NULL;
5264 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);
5266 /* Throw exception and emit compensation code if neccesary */
5267 if (exception_msg) {
5269 case MARSHAL_ACTION_CONV_IN:
5270 case MARSHAL_ACTION_CONV_RESULT:
5271 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5272 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5273 mono_mb_emit_byte (mb, CEE_POP);
5275 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5276 g_free (exception_msg);
5279 case MARSHAL_ACTION_PUSH:
5280 mono_mb_emit_byte (mb, CEE_LDNULL);
5288 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5289 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5292 case MARSHAL_ACTION_CONV_IN:
5294 case MONO_TYPE_CLASS:
5295 case MONO_TYPE_OBJECT:
5296 case MONO_TYPE_STRING:
5297 case MONO_TYPE_ARRAY:
5298 case MONO_TYPE_SZARRAY:
5299 case MONO_TYPE_VALUETYPE:
5303 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5304 g_assert_not_reached ();
5308 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5310 mono_mb_emit_byte (mb, CEE_LDNULL);
5311 mono_mb_emit_stloc (mb, conv_arg);
5313 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5316 /* Minic MS.NET behavior */
5317 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5320 /* Check for null */
5321 mono_mb_emit_ldarg (mb, argnum);
5323 mono_mb_emit_byte (mb, CEE_LDIND_I);
5324 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5326 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5328 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5330 mono_mb_emit_ldarg (mb, argnum);
5332 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5334 if (t->type == MONO_TYPE_VALUETYPE) {
5336 * Since we can't determine the type of the argument, we
5337 * will assume the unmanaged function takes a pointer.
5339 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5341 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5344 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5345 mono_mb_emit_stloc (mb, conv_arg);
5347 mono_mb_patch_branch (mb, pos2);
5350 case MARSHAL_ACTION_CONV_OUT:
5351 /* Check for null */
5352 mono_mb_emit_ldloc (mb, conv_arg);
5353 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5356 mono_mb_emit_ldarg (mb, argnum);
5358 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5360 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5362 mono_mb_emit_ldloc (mb, conv_arg);
5363 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5364 mono_mb_emit_byte (mb, CEE_STIND_REF);
5365 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5366 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5368 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5370 mono_mb_emit_ldloc (mb, conv_arg);
5371 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5373 /* We have nowhere to store the result */
5374 mono_mb_emit_byte (mb, CEE_POP);
5377 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5379 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5381 mono_mb_emit_ldloc (mb, conv_arg);
5383 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5385 mono_mb_patch_branch (mb, pos2);
5388 case MARSHAL_ACTION_PUSH:
5390 mono_mb_emit_ldloc_addr (mb, conv_arg);
5392 mono_mb_emit_ldloc (mb, conv_arg);
5395 case MARSHAL_ACTION_CONV_RESULT:
5396 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5398 mono_mb_emit_stloc (mb, 3);
5400 mono_mb_emit_ldloc (mb, 3);
5401 mono_mb_emit_stloc (mb, loc1);
5403 /* Check for null */
5404 mono_mb_emit_ldloc (mb, 3);
5405 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5407 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5409 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5410 mono_mb_emit_byte (mb, CEE_DUP);
5412 mono_mb_emit_ldloc (mb, 3);
5413 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5414 mono_mb_emit_stloc (mb, 3);
5416 mono_mb_emit_ldloc (mb, loc1);
5417 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5419 mono_mb_patch_branch (mb, pos2);
5422 case MARSHAL_ACTION_MANAGED_CONV_IN:
5423 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5425 mono_mb_emit_byte (mb, CEE_LDNULL);
5426 mono_mb_emit_stloc (mb, conv_arg);
5428 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5431 /* Check for null */
5432 mono_mb_emit_ldarg (mb, argnum);
5434 mono_mb_emit_byte (mb, CEE_LDIND_I);
5435 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5437 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5438 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5440 mono_mb_emit_ldarg (mb, argnum);
5442 mono_mb_emit_byte (mb, CEE_LDIND_I);
5444 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5445 mono_mb_emit_stloc (mb, conv_arg);
5447 mono_mb_patch_branch (mb, pos2);
5450 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5451 g_assert (!t->byref);
5453 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5455 mono_mb_emit_stloc (mb, 3);
5457 mono_mb_emit_ldloc (mb, 3);
5458 mono_mb_emit_stloc (mb, loc1);
5460 /* Check for null */
5461 mono_mb_emit_ldloc (mb, 3);
5462 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5464 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5465 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5466 mono_mb_emit_byte (mb, CEE_DUP);
5468 mono_mb_emit_ldloc (mb, 3);
5469 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5470 mono_mb_emit_stloc (mb, 3);
5472 mono_mb_emit_ldloc (mb, loc1);
5473 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5475 mono_mb_patch_branch (mb, pos2);
5478 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5480 /* Check for null */
5481 mono_mb_emit_ldloc (mb, conv_arg);
5482 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5485 mono_mb_emit_ldarg (mb, argnum);
5487 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5489 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5491 mono_mb_emit_ldloc (mb, conv_arg);
5492 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5493 mono_mb_emit_byte (mb, CEE_STIND_I);
5496 /* Call CleanUpManagedData */
5497 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5499 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5501 mono_mb_emit_ldloc (mb, conv_arg);
5502 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5504 mono_mb_patch_branch (mb, pos2);
5508 g_assert_not_reached ();
5515 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5516 MonoMarshalSpec *spec,
5517 int conv_arg, MonoType **conv_arg_type,
5518 MarshalAction action)
5520 MonoMethodBuilder *mb = m->mb;
5523 case MARSHAL_ACTION_CONV_IN: {
5524 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5526 g_assert (t->type == MONO_TYPE_OBJECT);
5527 g_assert (!t->byref);
5529 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5530 mono_mb_emit_ldarg (mb, argnum);
5531 mono_mb_emit_icon (mb, encoding);
5532 mono_mb_emit_icon (mb, t->attrs);
5533 mono_mb_emit_icall (mb, mono_marshal_asany);
5534 mono_mb_emit_stloc (mb, conv_arg);
5538 case MARSHAL_ACTION_PUSH:
5539 mono_mb_emit_ldloc (mb, conv_arg);
5542 case MARSHAL_ACTION_CONV_OUT: {
5543 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5545 mono_mb_emit_ldarg (mb, argnum);
5546 mono_mb_emit_ldloc (mb, conv_arg);
5547 mono_mb_emit_icon (mb, encoding);
5548 mono_mb_emit_icon (mb, t->attrs);
5549 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5554 g_assert_not_reached ();
5561 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5562 MonoMarshalSpec *spec,
5563 int conv_arg, MonoType **conv_arg_type,
5564 MarshalAction action)
5566 MonoMethodBuilder *mb = m->mb;
5567 MonoClass *klass, *date_time_class;
5570 klass = mono_class_from_mono_type (t);
5572 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5575 case MARSHAL_ACTION_CONV_IN:
5576 if (klass == date_time_class) {
5577 /* Convert it to an OLE DATE type */
5578 static MonoMethod *to_oadate;
5581 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5582 g_assert (to_oadate);
5584 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5587 mono_mb_emit_ldarg (mb, argnum);
5588 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5591 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5593 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5595 mono_mb_emit_ldarg_addr (mb, argnum);
5596 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5597 mono_mb_emit_stloc (mb, conv_arg);
5601 mono_mb_patch_branch (mb, pos);
5605 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5606 klass->blittable || klass->enumtype)
5609 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5611 /* store the address of the source into local variable 0 */
5613 mono_mb_emit_ldarg (mb, argnum);
5615 mono_mb_emit_ldarg_addr (mb, argnum);
5617 mono_mb_emit_stloc (mb, 0);
5619 /* allocate space for the native struct and
5620 * store the address into local variable 1 (dest) */
5621 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5622 mono_mb_emit_byte (mb, CEE_PREFIX1);
5623 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5624 mono_mb_emit_stloc (mb, conv_arg);
5627 mono_mb_emit_ldloc (mb, 0);
5628 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5631 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5633 mono_mb_emit_ldloc (mb, conv_arg);
5634 mono_mb_emit_stloc (mb, 1);
5636 /* emit valuetype conversion code */
5637 emit_struct_conv (mb, klass, FALSE);
5641 mono_mb_patch_branch (mb, pos);
5644 case MARSHAL_ACTION_PUSH:
5645 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5647 g_assert (!t->byref);
5649 /* Have to change the signature since the vtype is passed byref */
5650 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5652 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5653 klass->blittable || klass->enumtype)
5654 mono_mb_emit_ldarg_addr (mb, argnum);
5656 mono_mb_emit_ldloc (mb, conv_arg);
5660 if (klass == date_time_class) {
5662 mono_mb_emit_ldloc_addr (mb, conv_arg);
5664 mono_mb_emit_ldloc (mb, conv_arg);
5668 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5669 klass->blittable || klass->enumtype) {
5670 mono_mb_emit_ldarg (mb, argnum);
5673 mono_mb_emit_ldloc (mb, conv_arg);
5675 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5676 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5680 case MARSHAL_ACTION_CONV_OUT:
5681 if (klass == date_time_class) {
5682 /* Convert from an OLE DATE type */
5683 static MonoMethod *from_oadate;
5688 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5690 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5691 g_assert (from_oadate);
5693 mono_mb_emit_ldarg (mb, argnum);
5694 mono_mb_emit_ldloc (mb, conv_arg);
5695 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5696 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5701 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5702 klass->blittable || klass->enumtype)
5706 /* dst = argument */
5707 mono_mb_emit_ldarg (mb, argnum);
5708 mono_mb_emit_stloc (mb, 1);
5710 mono_mb_emit_ldloc (mb, 1);
5711 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5713 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5714 /* src = tmp_locals [i] */
5715 mono_mb_emit_ldloc (mb, conv_arg);
5716 mono_mb_emit_stloc (mb, 0);
5718 /* emit valuetype conversion code */
5719 emit_struct_conv (mb, klass, TRUE);
5723 emit_struct_free (mb, klass, conv_arg);
5726 mono_mb_patch_branch (mb, pos);
5729 case MARSHAL_ACTION_CONV_RESULT:
5730 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5732 mono_mb_emit_stloc (mb, 3);
5736 /* load pointer to returned value type */
5737 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5738 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5739 /* store the address of the source into local variable 0 */
5740 mono_mb_emit_stloc (mb, 0);
5742 mono_mb_emit_ldloc_addr (mb, 3);
5743 mono_mb_emit_stloc (mb, 1);
5745 /* emit valuetype conversion code */
5746 emit_struct_conv (mb, klass, TRUE);
5749 case MARSHAL_ACTION_MANAGED_CONV_IN:
5750 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5751 klass->blittable || klass->enumtype) {
5756 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5758 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5762 mono_mb_emit_ldarg (mb, argnum);
5764 mono_mb_emit_ldarg_addr (mb, argnum);
5765 mono_mb_emit_stloc (mb, 0);
5768 mono_mb_emit_ldloc (mb, 0);
5769 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5772 mono_mb_emit_ldloc_addr (mb, conv_arg);
5773 mono_mb_emit_stloc (mb, 1);
5775 /* emit valuetype conversion code */
5776 emit_struct_conv (mb, klass, TRUE);
5779 mono_mb_patch_branch (mb, pos);
5782 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5783 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5784 klass->blittable || klass->enumtype) {
5788 /* Check for null */
5789 mono_mb_emit_ldarg (mb, argnum);
5790 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5793 mono_mb_emit_ldloc_addr (mb, conv_arg);
5794 mono_mb_emit_stloc (mb, 0);
5797 mono_mb_emit_ldarg (mb, argnum);
5798 mono_mb_emit_stloc (mb, 1);
5800 /* emit valuetype conversion code */
5801 emit_struct_conv (mb, klass, FALSE);
5803 mono_mb_patch_branch (mb, pos2);
5806 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5807 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5808 klass->blittable || klass->enumtype) {
5809 mono_mb_emit_stloc (mb, 3);
5814 /* load pointer to returned value type */
5815 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5816 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5818 /* store the address of the source into local variable 0 */
5819 mono_mb_emit_stloc (mb, 0);
5820 /* allocate space for the native struct and
5821 * store the address into dst_ptr */
5822 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5823 m->retobj_class = klass;
5824 g_assert (m->retobj_var);
5825 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5826 mono_mb_emit_byte (mb, CEE_CONV_I);
5827 mono_mb_emit_icall (mb, mono_marshal_alloc);
5828 mono_mb_emit_stloc (mb, 1);
5829 mono_mb_emit_ldloc (mb, 1);
5830 mono_mb_emit_stloc (mb, m->retobj_var);
5832 /* emit valuetype conversion code */
5833 emit_struct_conv (mb, klass, FALSE);
5837 g_assert_not_reached ();
5844 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5845 MonoMarshalSpec *spec,
5846 int conv_arg, MonoType **conv_arg_type,
5847 MarshalAction action)
5849 MonoMethodBuilder *mb = m->mb;
5850 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5851 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5855 case MARSHAL_ACTION_CONV_IN:
5856 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5857 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5860 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5863 mono_mb_emit_ldarg (mb, argnum);
5864 mono_mb_emit_byte (mb, CEE_LDIND_I);
5866 mono_mb_emit_ldarg (mb, argnum);
5870 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5871 MonoException *exc = mono_get_exception_not_implemented (msg);
5872 g_warning ("%s", msg);
5874 mono_raise_exception (exc);
5877 mono_mb_emit_icall (mb, conv_to_icall (conv));
5879 mono_mb_emit_stloc (mb, conv_arg);
5882 case MARSHAL_ACTION_CONV_OUT:
5883 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5885 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5886 mono_mb_emit_exception_marshal_directive (mb, msg);
5890 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5891 mono_mb_emit_ldarg (mb, argnum);
5892 mono_mb_emit_ldloc (mb, conv_arg);
5893 mono_mb_emit_icall (mb, conv_to_icall (conv));
5894 mono_mb_emit_byte (mb, CEE_STIND_REF);
5897 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5898 mono_mb_emit_ldloc (mb, conv_arg);
5899 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5900 mono_mb_emit_icall (mb, mono_free_bstr);
5902 mono_mb_emit_icall (mb, mono_marshal_free);
5906 case MARSHAL_ACTION_PUSH:
5908 mono_mb_emit_ldloc_addr (mb, conv_arg);
5910 mono_mb_emit_ldloc (mb, conv_arg);
5913 case MARSHAL_ACTION_CONV_RESULT:
5914 mono_mb_emit_stloc (mb, 0);
5916 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5918 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5919 mono_mb_emit_exception_marshal_directive (mb, msg);
5923 mono_mb_emit_ldloc (mb, 0);
5924 mono_mb_emit_icall (mb, conv_to_icall (conv));
5925 mono_mb_emit_stloc (mb, 3);
5927 /* free the string */
5928 mono_mb_emit_ldloc (mb, 0);
5929 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5930 mono_mb_emit_icall (mb, mono_free_bstr);
5932 mono_mb_emit_icall (mb, mono_marshal_free);
5935 case MARSHAL_ACTION_MANAGED_CONV_IN:
5936 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5938 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5940 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5942 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5943 mono_mb_emit_exception_marshal_directive (mb, msg);
5947 mono_mb_emit_ldarg (mb, argnum);
5949 mono_mb_emit_byte (mb, CEE_LDIND_I);
5950 mono_mb_emit_icall (mb, conv_to_icall (conv));
5951 mono_mb_emit_stloc (mb, conv_arg);
5954 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5957 mono_mb_emit_ldarg (mb, argnum);
5958 mono_mb_emit_ldloc (mb, conv_arg);
5959 mono_mb_emit_icall (mb, conv_to_icall (conv));
5960 mono_mb_emit_byte (mb, CEE_STIND_I);
5965 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5966 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5967 /* We need to make a copy so the caller is able to free it */
5968 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5970 mono_mb_emit_icall (mb, conv_to_icall (conv));
5971 mono_mb_emit_stloc (mb, 3);
5975 g_assert_not_reached ();
5982 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5983 MonoMarshalSpec *spec, int conv_arg,
5984 MonoType **conv_arg_type, MarshalAction action)
5986 MonoMethodBuilder *mb = m->mb;
5989 case MARSHAL_ACTION_CONV_IN: {
5990 MonoType *intptr_type;
5991 int dar_release_slot, pos;
5993 intptr_type = &mono_defaults.int_class->byval_arg;
5994 conv_arg = mono_mb_add_local (mb, intptr_type);
5995 *conv_arg_type = intptr_type;
5997 if (!sh_dangerous_add_ref)
5998 init_safe_handle ();
6000 mono_mb_emit_ldarg (mb, argnum);
6001 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6002 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6004 mono_mb_patch_branch (mb, pos);
6007 * My tests in show that ref SafeHandles are not really
6008 * passed as ref objects. Instead a NULL is passed as the
6011 mono_mb_emit_icon (mb, 0);
6012 mono_mb_emit_stloc (mb, conv_arg);
6016 /* Create local to hold the ref parameter to DangerousAddRef */
6017 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6019 /* set release = false; */
6020 mono_mb_emit_icon (mb, 0);
6021 mono_mb_emit_stloc (mb, dar_release_slot);
6023 /* safehandle.DangerousAddRef (ref release) */
6024 mono_mb_emit_ldarg (mb, argnum);
6025 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6026 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6028 /* Pull the handle field from SafeHandle */
6029 mono_mb_emit_ldarg (mb, argnum);
6030 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6031 mono_mb_emit_byte (mb, CEE_LDIND_I);
6032 mono_mb_emit_stloc (mb, conv_arg);
6037 case MARSHAL_ACTION_PUSH:
6039 mono_mb_emit_ldloc_addr (mb, conv_arg);
6041 mono_mb_emit_ldloc (mb, conv_arg);
6044 case MARSHAL_ACTION_CONV_OUT: {
6045 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6046 int dar_release_slot = conv_arg + 1;
6049 if (!sh_dangerous_release)
6050 init_safe_handle ();
6056 * My tests indicate that ref SafeHandles parameters are not actually
6057 * passed by ref, but instead a new Handle is created regardless of
6058 * whether a change happens in the unmanaged side.
6060 * Also, the Handle is created before calling into unmanaged code,
6061 * but we do not support that mechanism (getting to the original
6062 * handle) and it makes no difference where we create this
6064 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6066 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6069 /* refval = new SafeHandleDerived ()*/
6070 mono_mb_emit_ldarg (mb, argnum);
6071 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6072 mono_mb_emit_byte (mb, CEE_STIND_REF);
6074 /* refval.handle = returned_handle */
6075 mono_mb_emit_ldarg (mb, argnum);
6076 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6077 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6078 mono_mb_emit_ldloc (mb, conv_arg);
6079 mono_mb_emit_byte (mb, CEE_STIND_I);
6081 mono_mb_emit_ldloc (mb, dar_release_slot);
6082 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6083 mono_mb_emit_ldarg (mb, argnum);
6084 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6085 mono_mb_patch_branch (mb, label_next);
6090 case MARSHAL_ACTION_CONV_RESULT: {
6091 MonoMethod *ctor = NULL;
6092 int intptr_handle_slot;
6094 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6095 mono_mb_emit_byte (mb, CEE_POP);
6096 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6100 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6102 mono_mb_emit_byte (mb, CEE_POP);
6103 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6106 /* Store the IntPtr results into a local */
6107 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6108 mono_mb_emit_stloc (mb, intptr_handle_slot);
6110 /* Create return value */
6111 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6112 mono_mb_emit_stloc (mb, 3);
6114 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6115 mono_mb_emit_ldloc (mb, 3);
6116 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6117 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6118 mono_mb_emit_byte (mb, CEE_STIND_I);
6122 case MARSHAL_ACTION_MANAGED_CONV_IN:
6123 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6126 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6127 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6130 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6131 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6134 printf ("Unhandled case for MarshalAction: %d\n", action);
6141 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6142 MonoMarshalSpec *spec, int conv_arg,
6143 MonoType **conv_arg_type, MarshalAction action)
6145 MonoMethodBuilder *mb = m->mb;
6148 case MARSHAL_ACTION_CONV_IN: {
6149 MonoType *intptr_type;
6151 intptr_type = &mono_defaults.int_class->byval_arg;
6152 conv_arg = mono_mb_add_local (mb, intptr_type);
6153 *conv_arg_type = intptr_type;
6156 mono_mb_emit_exception_marshal_directive (mb,
6157 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6160 mono_mb_emit_ldarg_addr (mb, argnum);
6161 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6162 mono_mb_emit_byte (mb, CEE_ADD);
6163 mono_mb_emit_byte (mb, CEE_LDIND_I);
6164 mono_mb_emit_stloc (mb, conv_arg);
6168 case MARSHAL_ACTION_PUSH:
6169 mono_mb_emit_ldloc (mb, conv_arg);
6172 case MARSHAL_ACTION_CONV_OUT: {
6173 /* no resource release required */
6177 case MARSHAL_ACTION_CONV_RESULT: {
6178 mono_mb_emit_exception_marshal_directive (mb,
6179 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6183 case MARSHAL_ACTION_MANAGED_CONV_IN:
6184 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6187 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6188 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6191 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6192 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6195 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6202 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6203 MonoMarshalSpec *spec,
6204 int conv_arg, MonoType **conv_arg_type,
6205 MarshalAction action)
6207 MonoMethodBuilder *mb = m->mb;
6208 MonoClass *klass = mono_class_from_mono_type (t);
6212 case MARSHAL_ACTION_CONV_IN:
6213 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6214 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6216 m->orig_conv_args [argnum] = 0;
6218 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6219 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6220 mono_mb_emit_exception_marshal_directive (mb, msg);
6224 if (klass->delegate) {
6226 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6227 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6228 mono_mb_emit_exception_marshal_directive (mb, msg);
6230 mono_mb_emit_byte (mb, CEE_LDNULL);
6231 mono_mb_emit_stloc (mb, conv_arg);
6233 mono_mb_emit_ldarg (mb, argnum);
6234 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6235 mono_mb_emit_stloc (mb, conv_arg);
6237 } else if (klass == mono_defaults.stringbuilder_class) {
6238 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6239 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6242 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6243 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6244 mono_mb_emit_exception_marshal_directive (mb, msg);
6249 mono_mb_emit_ldarg (mb, argnum);
6252 mono_mb_emit_icall (mb, conv_to_icall (conv));
6254 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6255 MonoException *exc = mono_get_exception_not_implemented (msg);
6256 g_warning ("%s", msg);
6258 mono_raise_exception (exc);
6261 mono_mb_emit_stloc (mb, conv_arg);
6262 } else if (klass->blittable) {
6263 mono_mb_emit_byte (mb, CEE_LDNULL);
6264 mono_mb_emit_stloc (mb, conv_arg);
6266 mono_mb_emit_ldarg (mb, argnum);
6267 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6269 mono_mb_emit_ldarg (mb, argnum);
6270 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6271 mono_mb_emit_stloc (mb, conv_arg);
6273 mono_mb_patch_branch (mb, pos);
6276 mono_mb_emit_byte (mb, CEE_LDNULL);
6277 mono_mb_emit_stloc (mb, conv_arg);
6280 /* we dont need any conversions for out parameters */
6281 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6284 mono_mb_emit_ldarg (mb, argnum);
6285 mono_mb_emit_byte (mb, CEE_LDIND_I);
6288 mono_mb_emit_ldarg (mb, argnum);
6289 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6290 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6293 /* store the address of the source into local variable 0 */
6294 mono_mb_emit_stloc (mb, 0);
6295 mono_mb_emit_ldloc (mb, 0);
6296 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6298 /* allocate space for the native struct and store the address */
6299 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6300 mono_mb_emit_byte (mb, CEE_PREFIX1);
6301 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6302 mono_mb_emit_stloc (mb, conv_arg);
6305 /* Need to store the original buffer so we can free it later */
6306 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6307 mono_mb_emit_ldloc (mb, conv_arg);
6308 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6311 /* set the src_ptr */
6312 mono_mb_emit_ldloc (mb, 0);
6313 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6314 mono_mb_emit_stloc (mb, 0);
6317 mono_mb_emit_ldloc (mb, conv_arg);
6318 mono_mb_emit_stloc (mb, 1);
6320 /* emit valuetype conversion code */
6321 emit_struct_conv (mb, klass, FALSE);
6323 mono_mb_patch_branch (mb, pos);
6327 case MARSHAL_ACTION_CONV_OUT:
6328 if (klass == mono_defaults.stringbuilder_class) {
6330 MonoMarshalNative encoding;
6331 MonoMarshalConv conv;
6333 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6334 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6336 g_assert (encoding != -1);
6339 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6343 mono_mb_emit_ldarg (mb, argnum);
6344 mono_mb_emit_ldloc (mb, conv_arg);
6347 case MONO_NATIVE_LPWSTR:
6348 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6350 case MONO_NATIVE_LPSTR:
6351 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6354 g_assert_not_reached ();
6357 mono_mb_emit_byte (mb, CEE_STIND_REF);
6359 mono_mb_emit_ldarg (mb, argnum);
6360 mono_mb_emit_ldloc (mb, conv_arg);
6362 mono_mb_emit_icall (mb, conv_to_icall (conv));
6366 mono_mb_emit_ldloc (mb, conv_arg);
6367 mono_mb_emit_icall (mb, mono_marshal_free);
6372 if (klass->delegate) {
6374 mono_mb_emit_ldarg (mb, argnum);
6375 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6376 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6377 mono_mb_emit_ldloc (mb, conv_arg);
6378 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6379 mono_mb_emit_byte (mb, CEE_STIND_REF);
6384 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6385 /* allocate a new object */
6386 mono_mb_emit_ldarg (mb, argnum);
6387 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6388 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6389 mono_mb_emit_byte (mb, CEE_STIND_REF);
6392 /* dst = *argument */
6393 mono_mb_emit_ldarg (mb, argnum);
6396 mono_mb_emit_byte (mb, CEE_LDIND_I);
6398 mono_mb_emit_stloc (mb, 1);
6400 mono_mb_emit_ldloc (mb, 1);
6401 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6403 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6404 mono_mb_emit_ldloc (mb, 1);
6405 mono_mb_emit_icon (mb, sizeof (MonoObject));
6406 mono_mb_emit_byte (mb, CEE_ADD);
6407 mono_mb_emit_stloc (mb, 1);
6409 /* src = tmp_locals [i] */
6410 mono_mb_emit_ldloc (mb, conv_arg);
6411 mono_mb_emit_stloc (mb, 0);
6413 /* emit valuetype conversion code */
6414 emit_struct_conv (mb, klass, TRUE);
6416 /* Free the structure returned by the native code */
6417 emit_struct_free (mb, klass, conv_arg);
6419 if (m->orig_conv_args [argnum]) {
6421 * If the native function changed the pointer, then free
6422 * the original structure plus the new pointer.
6424 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6425 mono_mb_emit_ldloc (mb, conv_arg);
6426 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6428 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6429 g_assert (m->orig_conv_args [argnum]);
6431 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6434 mono_mb_emit_ldloc (mb, conv_arg);
6435 mono_mb_emit_icall (mb, g_free);
6437 mono_mb_patch_branch (mb, pos2);
6441 /* Free the original structure passed to native code */
6442 emit_struct_free (mb, klass, conv_arg);
6444 mono_mb_patch_branch (mb, pos);
6447 case MARSHAL_ACTION_PUSH:
6449 mono_mb_emit_ldloc_addr (mb, conv_arg);
6451 mono_mb_emit_ldloc (mb, conv_arg);
6454 case MARSHAL_ACTION_CONV_RESULT:
6455 if (klass->delegate) {
6456 g_assert (!t->byref);
6457 mono_mb_emit_stloc (mb, 0);
6458 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6459 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6460 mono_mb_emit_ldloc (mb, 0);
6461 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6462 mono_mb_emit_stloc (mb, 3);
6465 mono_mb_emit_stloc (mb, 0);
6467 /* Make a copy since emit_conv modifies local 0 */
6468 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6469 mono_mb_emit_ldloc (mb, 0);
6470 mono_mb_emit_stloc (mb, loc);
6472 mono_mb_emit_byte (mb, CEE_LDNULL);
6473 mono_mb_emit_stloc (mb, 3);
6475 mono_mb_emit_ldloc (mb, 0);
6476 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6478 /* allocate result object */
6480 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6481 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6482 mono_mb_emit_stloc (mb, 3);
6486 mono_mb_emit_ldloc (mb, 3);
6487 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6488 mono_mb_emit_stloc (mb, 1);
6490 /* emit conversion code */
6491 emit_struct_conv (mb, klass, TRUE);
6493 emit_struct_free (mb, klass, loc);
6495 /* Free the pointer allocated by unmanaged code */
6496 mono_mb_emit_ldloc (mb, loc);
6497 mono_mb_emit_icall (mb, g_free);
6498 mono_mb_patch_branch (mb, pos);
6502 case MARSHAL_ACTION_MANAGED_CONV_IN:
6503 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6505 if (klass->delegate) {
6506 g_assert (!t->byref);
6507 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6508 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6509 mono_mb_emit_ldarg (mb, argnum);
6510 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6511 mono_mb_emit_stloc (mb, conv_arg);
6515 if (klass == mono_defaults.stringbuilder_class) {
6516 MonoMarshalNative encoding;
6518 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6521 g_assert (encoding == MONO_NATIVE_LPSTR);
6523 g_assert (!t->byref);
6524 g_assert (encoding != -1);
6526 mono_mb_emit_ldarg (mb, argnum);
6527 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6528 mono_mb_emit_stloc (mb, conv_arg);
6532 /* The class can not have an automatic layout */
6533 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6534 mono_mb_emit_auto_layout_exception (mb, klass);
6538 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6539 mono_mb_emit_byte (mb, CEE_LDNULL);
6540 mono_mb_emit_stloc (mb, conv_arg);
6545 mono_mb_emit_ldarg (mb, argnum);
6549 /* Check for NULL and raise an exception */
6550 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6552 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6554 mono_mb_patch_branch (mb, pos2);
6555 mono_mb_emit_ldarg (mb, argnum);
6556 mono_mb_emit_byte (mb, CEE_LDIND_I);
6559 mono_mb_emit_stloc (mb, 0);
6561 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6562 mono_mb_emit_stloc (mb, conv_arg);
6564 mono_mb_emit_ldloc (mb, 0);
6565 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6567 /* Create and set dst */
6568 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6569 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6570 mono_mb_emit_stloc (mb, conv_arg);
6571 mono_mb_emit_ldloc (mb, conv_arg);
6572 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6573 mono_mb_emit_stloc (mb, 1);
6575 /* emit valuetype conversion code */
6576 emit_struct_conv (mb, klass, TRUE);
6578 mono_mb_patch_branch (mb, pos);
6581 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6583 /* Check for null */
6584 mono_mb_emit_ldloc (mb, conv_arg);
6585 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6586 mono_mb_emit_ldarg (mb, argnum);
6587 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6588 mono_mb_emit_byte (mb, CEE_STIND_REF);
6589 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6591 mono_mb_patch_branch (mb, pos);
6594 mono_mb_emit_ldloc (mb, conv_arg);
6595 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6596 mono_mb_emit_stloc (mb, 0);
6598 /* Allocate and set dest */
6599 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6600 mono_mb_emit_byte (mb, CEE_CONV_I);
6601 mono_mb_emit_icall (mb, mono_marshal_alloc);
6602 mono_mb_emit_stloc (mb, 1);
6604 /* Update argument pointer */
6605 mono_mb_emit_ldarg (mb, argnum);
6606 mono_mb_emit_ldloc (mb, 1);
6607 mono_mb_emit_byte (mb, CEE_STIND_I);
6609 /* emit valuetype conversion code */
6610 emit_struct_conv (mb, klass, FALSE);
6612 mono_mb_patch_branch (mb, pos2);
6614 /* byval [Out] marshalling */
6616 /* FIXME: Handle null */
6619 mono_mb_emit_ldloc (mb, conv_arg);
6620 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6621 mono_mb_emit_stloc (mb, 0);
6624 mono_mb_emit_ldarg (mb, argnum);
6625 mono_mb_emit_stloc (mb, 1);
6627 /* emit valuetype conversion code */
6628 emit_struct_conv (mb, klass, FALSE);
6632 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6633 if (klass->delegate) {
6634 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6635 mono_mb_emit_stloc (mb, 3);
6639 /* The class can not have an automatic layout */
6640 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6641 mono_mb_emit_auto_layout_exception (mb, klass);
6645 mono_mb_emit_stloc (mb, 0);
6646 /* Check for null */
6647 mono_mb_emit_ldloc (mb, 0);
6648 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6649 mono_mb_emit_byte (mb, CEE_LDNULL);
6650 mono_mb_emit_stloc (mb, 3);
6651 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6653 mono_mb_patch_branch (mb, pos);
6656 mono_mb_emit_ldloc (mb, 0);
6657 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6658 mono_mb_emit_stloc (mb, 0);
6660 /* Allocate and set dest */
6661 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6662 mono_mb_emit_byte (mb, CEE_CONV_I);
6663 mono_mb_emit_icall (mb, mono_marshal_alloc);
6664 mono_mb_emit_byte (mb, CEE_DUP);
6665 mono_mb_emit_stloc (mb, 1);
6666 mono_mb_emit_stloc (mb, 3);
6668 emit_struct_conv (mb, klass, FALSE);
6670 mono_mb_patch_branch (mb, pos2);
6674 g_assert_not_reached ();
6681 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6682 MonoMarshalSpec *spec,
6683 int conv_arg, MonoType **conv_arg_type,
6684 MarshalAction action)
6686 MonoMethodBuilder *mb = m->mb;
6687 static MonoMethod *get_object_for_native_variant = NULL;
6688 static MonoMethod *get_native_variant_for_object = NULL;
6690 mono_init_com_types ();
6692 if (!get_object_for_native_variant)
6693 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6694 g_assert (get_object_for_native_variant);
6696 if (!get_native_variant_for_object)
6697 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6698 g_assert (get_native_variant_for_object);
6701 case MARSHAL_ACTION_CONV_IN: {
6702 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6705 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6707 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6709 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6712 mono_mb_emit_ldarg (mb, argnum);
6714 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6715 mono_mb_emit_ldloc_addr (mb, conv_arg);
6716 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6720 case MARSHAL_ACTION_CONV_OUT: {
6721 static MonoMethod *variant_clear = NULL;
6724 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6725 g_assert (variant_clear);
6728 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6729 mono_mb_emit_ldarg (mb, argnum);
6730 mono_mb_emit_ldloc_addr (mb, conv_arg);
6731 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6732 mono_mb_emit_byte (mb, CEE_STIND_REF);
6735 mono_mb_emit_ldloc_addr (mb, conv_arg);
6736 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6740 case MARSHAL_ACTION_PUSH:
6742 mono_mb_emit_ldloc_addr (mb, conv_arg);
6744 mono_mb_emit_ldloc (mb, conv_arg);
6747 case MARSHAL_ACTION_CONV_RESULT: {
6748 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6749 mono_mb_emit_exception_marshal_directive (mb, msg);
6753 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6754 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6757 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6759 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6761 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6765 mono_mb_emit_ldarg (mb, argnum);
6767 mono_mb_emit_ldarg_addr (mb, argnum);
6768 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6769 mono_mb_emit_stloc (mb, conv_arg);
6773 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6774 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6775 mono_mb_emit_ldloc (mb, conv_arg);
6776 mono_mb_emit_ldarg (mb, argnum);
6777 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6782 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6783 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6784 mono_mb_emit_exception_marshal_directive (mb, msg);
6789 g_assert_not_reached ();
6796 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6797 MonoMarshalSpec *spec,
6798 int conv_arg, MonoType **conv_arg_type,
6799 MarshalAction action)
6801 MonoMethodBuilder *mb = m->mb;
6802 MonoClass *klass = mono_class_from_mono_type (t);
6803 gboolean need_convert, need_free;
6804 MonoMarshalNative encoding;
6806 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6809 case MARSHAL_ACTION_CONV_IN:
6810 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6811 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6813 if (klass->element_class->blittable) {
6814 mono_mb_emit_ldarg (mb, argnum);
6816 mono_mb_emit_byte (mb, CEE_LDIND_I);
6817 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6818 mono_mb_emit_stloc (mb, conv_arg);
6821 guint32 label1, label2, label3;
6822 int index_var, src_var, dest_ptr, esize;
6823 MonoMarshalConv conv;
6824 gboolean is_string = FALSE;
6826 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6828 eklass = klass->element_class;
6830 if (eklass == mono_defaults.string_class) {
6832 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6834 else if (eklass == mono_defaults.stringbuilder_class) {
6836 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6841 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6842 mono_mb_emit_ldarg (mb, argnum);
6844 mono_mb_emit_byte (mb, CEE_LDIND_I);
6845 mono_mb_emit_stloc (mb, src_var);
6848 mono_mb_emit_ldloc (mb, src_var);
6849 mono_mb_emit_stloc (mb, conv_arg);
6850 mono_mb_emit_ldloc (mb, src_var);
6851 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6855 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6856 MonoException *exc = mono_get_exception_not_implemented (msg);
6857 g_warning ("%s", msg);
6859 mono_raise_exception (exc);
6864 esize = sizeof (gpointer);
6866 esize = mono_class_native_size (eklass, NULL);
6868 /* allocate space for the native struct and store the address */
6869 mono_mb_emit_icon (mb, esize);
6870 mono_mb_emit_ldloc (mb, src_var);
6871 mono_mb_emit_byte (mb, CEE_LDLEN);
6873 if (eklass == mono_defaults.string_class) {
6874 /* Make the array bigger for the terminating null */
6875 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6876 mono_mb_emit_byte (mb, CEE_ADD);
6878 mono_mb_emit_byte (mb, CEE_MUL);
6879 mono_mb_emit_byte (mb, CEE_PREFIX1);
6880 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6881 mono_mb_emit_stloc (mb, conv_arg);
6883 mono_mb_emit_ldloc (mb, conv_arg);
6884 mono_mb_emit_stloc (mb, dest_ptr);
6886 /* Emit marshalling loop */
6887 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6888 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6889 mono_mb_emit_stloc (mb, index_var);
6890 label2 = mono_mb_get_label (mb);
6891 mono_mb_emit_ldloc (mb, index_var);
6892 mono_mb_emit_ldloc (mb, src_var);
6893 mono_mb_emit_byte (mb, CEE_LDLEN);
6894 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6896 /* Emit marshalling code */
6899 mono_mb_emit_ldloc (mb, dest_ptr);
6900 mono_mb_emit_ldloc (mb, src_var);
6901 mono_mb_emit_ldloc (mb, index_var);
6902 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6903 mono_mb_emit_icall (mb, conv_to_icall (conv));
6904 mono_mb_emit_byte (mb, CEE_STIND_I);
6906 /* set the src_ptr */
6907 mono_mb_emit_ldloc (mb, src_var);
6908 mono_mb_emit_ldloc (mb, index_var);
6909 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6910 mono_mb_emit_stloc (mb, 0);
6913 mono_mb_emit_ldloc (mb, dest_ptr);
6914 mono_mb_emit_stloc (mb, 1);
6916 /* emit valuetype conversion code */
6917 emit_struct_conv (mb, eklass, FALSE);
6920 mono_mb_emit_add_to_local (mb, index_var, 1);
6921 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6923 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6925 mono_mb_patch_branch (mb, label3);
6927 if (eklass == mono_defaults.string_class) {
6928 /* Null terminate */
6929 mono_mb_emit_ldloc (mb, dest_ptr);
6930 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6931 mono_mb_emit_byte (mb, CEE_STIND_REF);
6934 mono_mb_patch_branch (mb, label1);
6939 case MARSHAL_ACTION_CONV_OUT:
6940 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6941 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);
6942 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6945 if (need_convert || need_free) {
6946 /* FIXME: Optimize blittable case */
6948 guint32 label1, label2, label3;
6949 int index_var, src_ptr, loc, esize;
6951 eklass = klass->element_class;
6952 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6953 esize = sizeof (gpointer);
6955 esize = mono_class_native_size (eklass, NULL);
6956 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6957 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6960 mono_mb_emit_ldarg (mb, argnum);
6962 mono_mb_emit_byte (mb, CEE_LDIND_I);
6963 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6965 mono_mb_emit_ldloc (mb, conv_arg);
6966 mono_mb_emit_stloc (mb, src_ptr);
6968 /* Emit marshalling loop */
6969 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6970 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6971 mono_mb_emit_stloc (mb, index_var);
6972 label2 = mono_mb_get_label (mb);
6973 mono_mb_emit_ldloc (mb, index_var);
6974 mono_mb_emit_ldarg (mb, argnum);
6976 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6977 mono_mb_emit_byte (mb, CEE_LDLEN);
6978 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6980 /* Emit marshalling code */
6982 if (eklass == mono_defaults.stringbuilder_class) {
6983 gboolean need_free2;
6984 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6986 g_assert (conv != -1);
6989 mono_mb_emit_ldarg (mb, argnum);
6991 mono_mb_emit_byte (mb, CEE_LDIND_I);
6992 mono_mb_emit_ldloc (mb, index_var);
6993 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6996 mono_mb_emit_ldloc (mb, src_ptr);
6997 mono_mb_emit_byte (mb, CEE_LDIND_I);
6999 mono_mb_emit_icall (mb, conv_to_icall (conv));
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);
7009 else if (eklass == mono_defaults.string_class) {
7012 mono_mb_emit_ldloc (mb, src_ptr);
7013 mono_mb_emit_byte (mb, CEE_LDIND_I);
7015 mono_mb_emit_icall (mb, mono_marshal_free);
7020 /* set the src_ptr */
7021 mono_mb_emit_ldloc (mb, src_ptr);
7022 mono_mb_emit_stloc (mb, 0);
7025 mono_mb_emit_ldarg (mb, argnum);
7027 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7028 mono_mb_emit_ldloc (mb, index_var);
7029 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7030 mono_mb_emit_stloc (mb, 1);
7032 /* emit valuetype conversion code */
7033 emit_struct_conv (mb, eklass, TRUE);
7037 mono_mb_emit_ldloc (mb, src_ptr);
7038 mono_mb_emit_stloc (mb, loc);
7039 mono_mb_emit_ldloc (mb, loc);
7041 emit_struct_free (mb, eklass, loc);
7045 mono_mb_emit_add_to_local (mb, index_var, 1);
7046 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7048 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7050 mono_mb_patch_branch (mb, label1);
7051 mono_mb_patch_branch (mb, label3);
7054 if (klass->element_class->blittable) {
7055 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7057 mono_mb_emit_ldarg (mb, argnum);
7058 mono_mb_emit_ldloc (mb, conv_arg);
7059 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7064 case MARSHAL_ACTION_PUSH:
7066 mono_mb_emit_ldloc_addr (mb, conv_arg);
7068 mono_mb_emit_ldloc (mb, conv_arg);
7071 case MARSHAL_ACTION_CONV_RESULT:
7072 /* fixme: we need conversions here */
7073 mono_mb_emit_stloc (mb, 3);
7076 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7078 guint32 label1, label2, label3;
7079 int index_var, src_ptr, loc, esize, param_num, num_elem;
7080 MonoMarshalConv conv;
7081 gboolean is_string = FALSE;
7083 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7084 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7087 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7088 mono_mb_emit_exception_marshal_directive (mb, msg);
7092 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7093 mono_mb_emit_exception_marshal_directive (mb, msg);
7096 if (spec->native != MONO_NATIVE_LPARRAY) {
7097 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7098 mono_mb_emit_exception_marshal_directive (mb, msg);
7102 /* FIXME: t is from the method which is wrapped, not the delegate type */
7103 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7105 param_num = spec->data.array_data.param_num;
7106 num_elem = spec->data.array_data.num_elem;
7107 if (spec->data.array_data.elem_mult == 0)
7108 /* param_num is not specified */
7111 if (param_num == -1) {
7112 if (num_elem <= 0) {
7113 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7114 mono_mb_emit_exception_marshal_directive (mb, msg);
7119 /* FIXME: Optimize blittable case */
7121 eklass = klass->element_class;
7122 if (eklass == mono_defaults.string_class) {
7124 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7126 else if (eklass == mono_defaults.stringbuilder_class) {
7128 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7133 mono_marshal_load_type_info (eklass);
7136 esize = sizeof (gpointer);
7138 esize = mono_class_native_size (eklass, NULL);
7139 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7140 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7142 mono_mb_emit_byte (mb, CEE_LDNULL);
7143 mono_mb_emit_stloc (mb, conv_arg);
7145 /* Check param index */
7146 if (param_num != -1) {
7147 if (param_num >= m->sig->param_count) {
7148 char *msg = g_strdup ("Array size control parameter index is out of range.");
7149 mono_mb_emit_exception_marshal_directive (mb, msg);
7152 switch (m->sig->params [param_num]->type) {
7165 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7166 mono_mb_emit_exception_marshal_directive (mb, msg);
7173 mono_mb_emit_ldarg (mb, argnum);
7174 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7176 mono_mb_emit_ldarg (mb, argnum);
7177 mono_mb_emit_stloc (mb, src_ptr);
7179 /* Create managed array */
7181 * The LPArray marshalling spec says that sometimes param_num starts
7182 * from 1, sometimes it starts from 0. But MS seems to allways start
7186 if (param_num == -1) {
7187 mono_mb_emit_icon (mb, num_elem);
7189 mono_mb_emit_ldarg (mb, param_num);
7191 mono_mb_emit_icon (mb, num_elem);
7192 mono_mb_emit_byte (mb, CEE_ADD);
7194 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7197 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7198 mono_mb_emit_stloc (mb, conv_arg);
7200 if (eklass->blittable) {
7201 mono_mb_emit_ldloc (mb, conv_arg);
7202 mono_mb_emit_byte (mb, CEE_CONV_I);
7203 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7204 mono_mb_emit_byte (mb, CEE_ADD);
7205 mono_mb_emit_ldarg (mb, argnum);
7206 mono_mb_emit_ldloc (mb, conv_arg);
7207 mono_mb_emit_byte (mb, CEE_LDLEN);
7208 mono_mb_emit_icon (mb, esize);
7209 mono_mb_emit_byte (mb, CEE_MUL);
7210 mono_mb_emit_byte (mb, CEE_PREFIX1);
7211 mono_mb_emit_byte (mb, CEE_CPBLK);
7215 /* Emit marshalling loop */
7216 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7217 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7218 mono_mb_emit_stloc (mb, index_var);
7219 label2 = mono_mb_get_label (mb);
7220 mono_mb_emit_ldloc (mb, index_var);
7221 mono_mb_emit_ldloc (mb, conv_arg);
7222 mono_mb_emit_byte (mb, CEE_LDLEN);
7223 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7225 /* Emit marshalling code */
7227 g_assert (conv != -1);
7229 mono_mb_emit_ldloc (mb, conv_arg);
7230 mono_mb_emit_ldloc (mb, index_var);
7232 mono_mb_emit_ldloc (mb, src_ptr);
7233 mono_mb_emit_byte (mb, CEE_LDIND_I);
7235 mono_mb_emit_icall (mb, conv_to_icall (conv));
7236 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7239 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7240 mono_mb_emit_exception_marshal_directive (mb, msg);
7244 mono_mb_emit_add_to_local (mb, index_var, 1);
7245 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7247 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7249 mono_mb_patch_branch (mb, label1);
7250 mono_mb_patch_branch (mb, label3);
7254 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7256 guint32 label1, label2, label3;
7257 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7258 MonoMarshalConv conv;
7259 gboolean is_string = FALSE;
7262 /* Already handled in CONV_IN */
7265 /* These are already checked in CONV_IN */
7266 g_assert (!t->byref);
7267 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7268 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7270 param_num = spec->data.array_data.param_num;
7271 num_elem = spec->data.array_data.num_elem;
7273 if (spec->data.array_data.elem_mult == 0)
7274 /* param_num is not specified */
7277 if (param_num == -1) {
7278 if (num_elem <= 0) {
7279 g_assert_not_reached ();
7283 /* FIXME: Optimize blittable case */
7285 eklass = klass->element_class;
7286 if (eklass == mono_defaults.string_class) {
7288 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7290 else if (eklass == mono_defaults.stringbuilder_class) {
7292 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7297 mono_marshal_load_type_info (eklass);
7300 esize = sizeof (gpointer);
7302 esize = mono_class_native_size (eklass, NULL);
7304 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7305 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7308 mono_mb_emit_ldloc (mb, conv_arg);
7309 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7311 mono_mb_emit_ldarg (mb, argnum);
7312 mono_mb_emit_stloc (mb, dest_ptr);
7314 if (eklass->blittable) {
7316 mono_mb_emit_ldarg (mb, argnum);
7318 mono_mb_emit_ldloc (mb, conv_arg);
7319 mono_mb_emit_byte (mb, CEE_CONV_I);
7320 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7321 mono_mb_emit_byte (mb, CEE_ADD);
7323 mono_mb_emit_ldloc (mb, conv_arg);
7324 mono_mb_emit_byte (mb, CEE_LDLEN);
7325 mono_mb_emit_icon (mb, esize);
7326 mono_mb_emit_byte (mb, CEE_MUL);
7327 mono_mb_emit_byte (mb, CEE_PREFIX1);
7328 mono_mb_emit_byte (mb, CEE_CPBLK);
7332 /* Emit marshalling loop */
7333 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7334 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7335 mono_mb_emit_stloc (mb, index_var);
7336 label2 = mono_mb_get_label (mb);
7337 mono_mb_emit_ldloc (mb, index_var);
7338 mono_mb_emit_ldloc (mb, conv_arg);
7339 mono_mb_emit_byte (mb, CEE_LDLEN);
7340 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7342 /* Emit marshalling code */
7344 g_assert (conv != -1);
7347 mono_mb_emit_ldloc (mb, dest_ptr);
7350 mono_mb_emit_ldloc (mb, conv_arg);
7351 mono_mb_emit_ldloc (mb, index_var);
7353 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7355 mono_mb_emit_icall (mb, conv_to_icall (conv));
7356 mono_mb_emit_byte (mb, CEE_STIND_I);
7359 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7360 mono_mb_emit_exception_marshal_directive (mb, msg);
7364 mono_mb_emit_add_to_local (mb, index_var, 1);
7365 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7367 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7369 mono_mb_patch_branch (mb, label1);
7370 mono_mb_patch_branch (mb, label3);
7374 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7376 guint32 label1, label2, label3;
7377 int index_var, src, dest, esize;
7378 MonoMarshalConv conv = -1;
7379 gboolean is_string = FALSE;
7381 g_assert (!t->byref);
7383 eklass = klass->element_class;
7385 mono_marshal_load_type_info (eklass);
7387 if (eklass == mono_defaults.string_class) {
7389 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7392 g_assert_not_reached ();
7396 esize = sizeof (gpointer);
7398 esize = mono_class_native_size (eklass, NULL);
7400 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7401 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7403 mono_mb_emit_stloc (mb, src);
7404 mono_mb_emit_ldloc (mb, src);
7405 mono_mb_emit_stloc (mb, 3);
7407 /* Check for null */
7408 mono_mb_emit_ldloc (mb, src);
7409 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7411 /* Allocate native array */
7412 mono_mb_emit_icon (mb, esize);
7413 mono_mb_emit_ldloc (mb, src);
7414 mono_mb_emit_byte (mb, CEE_LDLEN);
7416 if (eklass == mono_defaults.string_class) {
7417 /* Make the array bigger for the terminating null */
7418 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7419 mono_mb_emit_byte (mb, CEE_ADD);
7421 mono_mb_emit_byte (mb, CEE_MUL);
7422 mono_mb_emit_icall (mb, mono_marshal_alloc);
7423 mono_mb_emit_stloc (mb, dest);
7424 mono_mb_emit_ldloc (mb, dest);
7425 mono_mb_emit_stloc (mb, 3);
7427 /* Emit marshalling loop */
7428 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7429 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7430 mono_mb_emit_stloc (mb, index_var);
7431 label2 = mono_mb_get_label (mb);
7432 mono_mb_emit_ldloc (mb, index_var);
7433 mono_mb_emit_ldloc (mb, src);
7434 mono_mb_emit_byte (mb, CEE_LDLEN);
7435 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7437 /* Emit marshalling code */
7439 g_assert (conv != -1);
7442 mono_mb_emit_ldloc (mb, dest);
7445 mono_mb_emit_ldloc (mb, src);
7446 mono_mb_emit_ldloc (mb, index_var);
7448 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7450 mono_mb_emit_icall (mb, conv_to_icall (conv));
7451 mono_mb_emit_byte (mb, CEE_STIND_I);
7454 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7455 mono_mb_emit_exception_marshal_directive (mb, msg);
7459 mono_mb_emit_add_to_local (mb, index_var, 1);
7460 mono_mb_emit_add_to_local (mb, dest, esize);
7462 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7464 mono_mb_patch_branch (mb, label3);
7465 mono_mb_patch_branch (mb, label1);
7469 g_assert_not_reached ();
7476 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7477 MonoMarshalSpec *spec,
7478 int conv_arg, MonoType **conv_arg_type,
7479 MarshalAction action)
7481 MonoMethodBuilder *mb = m->mb;
7484 case MARSHAL_ACTION_CONV_IN: {
7485 MonoType *local_type;
7487 guint8 ldc_op = CEE_LDC_I4_1;
7490 local_type = &mono_defaults.int32_class->byval_arg;
7492 switch (spec->native) {
7493 case MONO_NATIVE_I1:
7494 case MONO_NATIVE_U1:
7495 local_type = &mono_defaults.byte_class->byval_arg;
7497 case MONO_NATIVE_VARIANTBOOL:
7498 local_type = &mono_defaults.int16_class->byval_arg;
7499 ldc_op = CEE_LDC_I4_M1;
7501 case MONO_NATIVE_BOOLEAN:
7502 local_type = &mono_defaults.int32_class->byval_arg;
7505 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7506 local_type = &mono_defaults.int32_class->byval_arg;
7511 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7513 *conv_arg_type = local_type;
7514 conv_arg = mono_mb_add_local (mb, local_type);
7516 mono_mb_emit_ldarg (mb, argnum);
7518 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7519 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7520 mono_mb_emit_byte (mb, ldc_op);
7521 mono_mb_emit_stloc (mb, conv_arg);
7522 mono_mb_patch_branch (mb, label_false);
7527 case MARSHAL_ACTION_CONV_OUT:
7529 int label_false, label_end;
7533 mono_mb_emit_ldarg (mb, argnum);
7534 mono_mb_emit_ldloc (mb, conv_arg);
7536 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7537 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7539 label_end = mono_mb_emit_branch (mb, CEE_BR);
7540 mono_mb_patch_branch (mb, label_false);
7541 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7542 mono_mb_patch_branch (mb, label_end);
7544 mono_mb_emit_byte (mb, CEE_STIND_I1);
7548 case MARSHAL_ACTION_PUSH:
7550 mono_mb_emit_ldloc_addr (mb, conv_arg);
7552 mono_mb_emit_ldloc (mb, conv_arg);
7554 mono_mb_emit_ldarg (mb, argnum);
7557 case MARSHAL_ACTION_CONV_RESULT:
7558 /* maybe we need to make sure that it fits within 8 bits */
7559 mono_mb_emit_stloc (mb, 3);
7562 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7563 MonoClass* conv_arg_class = mono_defaults.int32_class;
7564 guint8 ldop = CEE_LDIND_I4;
7565 int label_null, label_false;
7567 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7570 switch (spec->native) {
7571 case MONO_NATIVE_I1:
7572 case MONO_NATIVE_U1:
7573 conv_arg_class = mono_defaults.byte_class;
7574 ldop = CEE_LDIND_I1;
7576 case MONO_NATIVE_VARIANTBOOL:
7577 conv_arg_class = mono_defaults.int16_class;
7578 ldop = CEE_LDIND_I2;
7580 case MONO_NATIVE_BOOLEAN:
7583 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7588 *conv_arg_type = &conv_arg_class->this_arg;
7590 *conv_arg_type = &conv_arg_class->byval_arg;
7593 mono_mb_emit_ldarg (mb, argnum);
7597 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7598 mono_mb_emit_ldarg (mb, argnum);
7599 mono_mb_emit_byte (mb, ldop);
7603 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7604 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7605 mono_mb_emit_stloc (mb, conv_arg);
7606 mono_mb_patch_branch (mb, label_false);
7609 mono_mb_patch_branch (mb, label_null);
7613 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7614 guint8 stop = CEE_STIND_I4;
7615 guint8 ldc_op = CEE_LDC_I4_1;
7616 int label_null,label_false, label_end;;
7621 switch (spec->native) {
7622 case MONO_NATIVE_I1:
7623 case MONO_NATIVE_U1:
7624 stop = CEE_STIND_I1;
7626 case MONO_NATIVE_VARIANTBOOL:
7627 stop = CEE_STIND_I2;
7628 ldc_op = CEE_LDC_I4_M1;
7636 mono_mb_emit_ldarg (mb, argnum);
7637 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7639 mono_mb_emit_ldarg (mb, argnum);
7640 mono_mb_emit_ldloc (mb, conv_arg);
7642 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7643 mono_mb_emit_byte (mb, ldc_op);
7644 label_end = mono_mb_emit_branch (mb, CEE_BR);
7646 mono_mb_patch_branch (mb, label_false);
7647 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7648 mono_mb_patch_branch (mb, label_end);
7650 mono_mb_emit_byte (mb, stop);
7651 mono_mb_patch_branch (mb, label_null);
7656 g_assert_not_reached ();
7663 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7664 MonoMarshalSpec *spec, int conv_arg,
7665 MonoType **conv_arg_type, MarshalAction action)
7667 MonoMethodBuilder *mb = m->mb;
7670 case MARSHAL_ACTION_CONV_IN:
7671 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7672 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7673 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7677 case MARSHAL_ACTION_PUSH:
7678 mono_mb_emit_ldarg (mb, argnum);
7681 case MARSHAL_ACTION_CONV_RESULT:
7682 /* no conversions necessary */
7683 mono_mb_emit_stloc (mb, 3);
7694 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7695 MonoMarshalSpec *spec, int conv_arg,
7696 MonoType **conv_arg_type, MarshalAction action)
7698 MonoMethodBuilder *mb = m->mb;
7701 case MARSHAL_ACTION_PUSH:
7702 /* fixme: dont know how to marshal that. We cant simply
7703 * convert it to a one byte UTF8 character, because an
7704 * unicode character may need more that one byte in UTF8 */
7705 mono_mb_emit_ldarg (mb, argnum);
7708 case MARSHAL_ACTION_CONV_RESULT:
7709 /* fixme: we need conversions here */
7710 mono_mb_emit_stloc (mb, 3);
7721 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7722 MonoMarshalSpec *spec, int conv_arg,
7723 MonoType **conv_arg_type, MarshalAction action)
7725 MonoMethodBuilder *mb = m->mb;
7728 case MARSHAL_ACTION_PUSH:
7729 mono_mb_emit_ldarg (mb, argnum);
7732 case MARSHAL_ACTION_CONV_RESULT:
7733 /* no conversions necessary */
7734 mono_mb_emit_stloc (mb, 3);
7745 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7746 MonoMarshalSpec *spec, int conv_arg,
7747 MonoType **conv_arg_type, MarshalAction action)
7749 /* Ensure that we have marshalling info for this param */
7750 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7752 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7753 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7755 if (spec && spec->native == MONO_NATIVE_ASANY)
7756 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7759 case MONO_TYPE_VALUETYPE:
7760 if (t->data.klass == mono_defaults.handleref_class)
7761 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7763 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7764 case MONO_TYPE_STRING:
7765 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7766 case MONO_TYPE_CLASS:
7767 case MONO_TYPE_OBJECT:
7768 if (spec && spec->native == MONO_NATIVE_STRUCT)
7769 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7772 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7773 spec->native == MONO_NATIVE_IDISPATCH ||
7774 spec->native == MONO_NATIVE_INTERFACE))
7775 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7776 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7777 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7778 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7779 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7782 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7783 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7784 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7786 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7787 case MONO_TYPE_ARRAY:
7788 case MONO_TYPE_SZARRAY:
7789 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7790 case MONO_TYPE_BOOLEAN:
7791 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7793 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7794 case MONO_TYPE_CHAR:
7795 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7808 case MONO_TYPE_FNPTR:
7809 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7810 case MONO_TYPE_GENERICINST:
7811 if (mono_type_generic_inst_is_valuetype (t))
7812 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7814 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7821 * mono_marshal_emit_native_wrapper:
7822 * @image: the image to use for looking up custom marshallers
7823 * @sig: The signature of the native function
7824 * @piinfo: Marshalling information
7825 * @mspecs: Marshalling information
7826 * @aot: whenever the created method will be compiled by the AOT compiler
7827 * @method: if non-NULL, the pinvoke method to call
7828 * @check_exceptions: Whenever to check for pending exceptions after the native call
7830 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7833 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7835 EmitMarshalContext m;
7836 MonoMethodSignature *csig;
7838 int i, argnum, *tmp_locals;
7840 static MonoMethodSignature *get_last_error_sig = NULL;
7845 /* we copy the signature, so that we can set pinvoke to 0 */
7846 csig = signature_dup (mb->method->klass->image, sig);
7851 /* we allocate local for use with emit_struct_conv() */
7852 /* allocate local 0 (pointer) src_ptr */
7853 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7854 /* allocate local 1 (pointer) dst_ptr */
7855 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7856 /* allocate local 2 (boolean) delete_old */
7857 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7859 /* delete_old = FALSE */
7860 mono_mb_emit_icon (mb, 0);
7861 mono_mb_emit_stloc (mb, 2);
7863 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7864 /* allocate local 3 to store the return value */
7865 mono_mb_add_local (mb, sig->ret);
7868 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7869 /* Return type custom marshaling */
7871 * Since we can't determine the return type of the unmanaged function,
7872 * we assume it returns a pointer, and pass that pointer to
7873 * MarshalNativeToManaged.
7875 csig->ret = &mono_defaults.int_class->byval_arg;
7878 /* we first do all conversions */
7879 tmp_locals = alloca (sizeof (int) * sig->param_count);
7880 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7882 for (i = 0; i < sig->param_count; i ++) {
7883 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7886 /* push all arguments */
7889 mono_mb_emit_byte (mb, CEE_LDARG_0);
7891 for (i = 0; i < sig->param_count; i++) {
7892 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7895 /* call the native method */
7896 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7898 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7900 g_assert_not_reached ();
7905 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7906 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7907 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7908 mono_mb_emit_calli (mb, csig);
7910 mono_mb_emit_native_call (mb, csig, func);
7914 /* Set LastError if needed */
7915 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7916 if (!get_last_error_sig) {
7917 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7918 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7919 get_last_error_sig->pinvoke = 1;
7924 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7925 * clobber its value.
7927 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7928 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7930 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7934 /* convert the result */
7935 if (!sig->ret->byref) {
7936 MonoMarshalSpec *spec = mspecs [0];
7937 type = sig->ret->type;
7939 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7940 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7945 case MONO_TYPE_VOID:
7947 case MONO_TYPE_VALUETYPE:
7948 klass = sig->ret->data.klass;
7949 if (klass->enumtype) {
7950 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7953 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7967 case MONO_TYPE_FNPTR:
7968 case MONO_TYPE_STRING:
7969 case MONO_TYPE_CLASS:
7970 case MONO_TYPE_OBJECT:
7971 case MONO_TYPE_BOOLEAN:
7972 case MONO_TYPE_ARRAY:
7973 case MONO_TYPE_SZARRAY:
7974 case MONO_TYPE_CHAR:
7976 case MONO_TYPE_GENERICINST:
7977 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7979 case MONO_TYPE_TYPEDBYREF:
7981 g_warning ("return type 0x%02x unknown", sig->ret->type);
7982 g_assert_not_reached ();
7986 mono_mb_emit_stloc (mb, 3);
7990 * Need to call this after converting the result since MONO_VTADDR needs
7991 * to be adjacent to the call instruction.
7993 if (check_exceptions)
7994 emit_thread_interrupt_checkpoint (mb);
7996 /* we need to convert byref arguments back and free string arrays */
7997 for (i = 0; i < sig->param_count; i++) {
7998 MonoType *t = sig->params [i];
7999 MonoMarshalSpec *spec = mspecs [i + 1];
8001 argnum = i + sig->hasthis;
8003 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8004 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8009 case MONO_TYPE_STRING:
8010 case MONO_TYPE_VALUETYPE:
8011 case MONO_TYPE_CLASS:
8012 case MONO_TYPE_OBJECT:
8013 case MONO_TYPE_SZARRAY:
8014 case MONO_TYPE_BOOLEAN:
8015 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8020 if (!MONO_TYPE_IS_VOID(sig->ret))
8021 mono_mb_emit_ldloc (mb, 3);
8023 mono_mb_emit_byte (mb, CEE_RET);
8026 G_GNUC_UNUSED static void
8027 code_for (MonoMethod *method) {
8028 MonoMethodHeader *header = mono_method_get_header (method);
8029 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));
8033 * mono_marshal_get_native_wrapper:
8034 * @method: The MonoMethod to wrap.
8035 * @check_exceptions: Whenever to check for pending exceptions
8037 * generates IL code for the pinvoke wrapper (the generated method
8038 * calls the unmanaged code in piinfo->addr)
8041 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8043 MonoMethodSignature *sig, *csig;
8044 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8045 MonoMethodBuilder *mb;
8046 MonoMarshalSpec **mspecs;
8049 gboolean pinvoke = FALSE;
8052 const char *exc_class = "MissingMethodException";
8053 const char *exc_arg = NULL;
8055 g_assert (method != NULL);
8056 g_assert (mono_method_signature (method)->pinvoke);
8059 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8061 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8062 if ((res = mono_marshal_find_in_cache (cache, method)))
8065 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8067 return mono_cominterop_get_native_wrapper (method);
8069 g_assert_not_reached ();
8073 sig = mono_method_signature (method);
8075 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8076 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8079 if (!piinfo->addr) {
8081 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8082 exc_arg = "Method contains unsupported native code";
8084 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8086 piinfo->addr = mono_lookup_internal_call (method);
8089 /* hack - redirect certain string constructors to CreateString */
8090 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8091 g_assert (!pinvoke);
8092 g_assert (method->string_ctor);
8093 g_assert (sig->hasthis);
8095 /* CreateString returns a value */
8096 csig = signature_dup (method->klass->image, sig);
8097 csig->ret = &mono_defaults.string_class->byval_arg;
8101 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8102 if (!strcmp ("CreateString", res->name) &&
8103 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8105 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8106 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8108 /* create a wrapper to preserve .ctor in stack trace */
8109 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8111 mono_mb_emit_byte (mb, CEE_LDARG_0);
8112 for (i = 1; i <= csig->param_count; i++)
8113 mono_mb_emit_ldarg (mb, i);
8114 mono_mb_emit_managed_call (mb, res, NULL);
8115 mono_mb_emit_byte (mb, CEE_RET);
8117 /* use native_wrapper_cache because internal calls are looked up there */
8118 res = mono_mb_create_and_cache (cache, method,
8119 mb, csig, csig->param_count + 1);
8127 /* exception will be thrown */
8128 piinfo->addr = NULL;
8129 g_warning ("cannot find CreateString for .ctor");
8132 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8134 mb->method->save_lmf = 1;
8137 * In AOT mode and embedding scenarios, it is possible that the icall is not
8138 * registered in the runtime doing the AOT compilation.
8140 if (!piinfo->addr && !aot) {
8141 mono_mb_emit_exception (mb, exc_class, exc_arg);
8142 csig = signature_dup (method->klass->image, sig);
8144 res = mono_mb_create_and_cache (cache, method,
8145 mb, csig, csig->param_count + 16);
8150 /* internal calls: we simply push all arguments and call the method (no conversions) */
8151 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8153 csig = signature_dup_add_this (sig, method->klass);
8155 csig = signature_dup (method->klass->image, sig);
8157 /* hack - string constructors returns a value */
8158 if (method->string_ctor)
8159 csig->ret = &mono_defaults.string_class->byval_arg;
8165 * Add a null check since public icalls can be called with 'call' which
8166 * does no such check.
8168 mono_mb_emit_byte (mb, CEE_LDARG_0);
8169 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8170 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8171 mono_mb_patch_branch (mb, pos);
8173 mono_mb_emit_byte (mb, CEE_LDARG_0);
8176 for (i = 0; i < sig->param_count; i++)
8177 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8180 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8181 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8182 mono_mb_emit_calli (mb, csig);
8184 g_assert (piinfo->addr);
8185 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8187 if (check_exceptions)
8188 emit_thread_interrupt_checkpoint (mb);
8189 mono_mb_emit_byte (mb, CEE_RET);
8191 csig = signature_dup (method->klass->image, csig);
8193 res = mono_mb_create_and_cache (cache, method,
8194 mb, csig, csig->param_count + 16);
8201 g_assert (piinfo->addr);
8203 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8204 mono_method_get_marshal_info (method, mspecs);
8206 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8208 csig = signature_dup (method->klass->image, sig);
8210 res = mono_mb_create_and_cache (cache, method,
8211 mb, csig, csig->param_count + 16);
8214 for (i = sig->param_count; i >= 0; i--)
8216 mono_metadata_free_marshal_spec (mspecs [i]);
8219 /* code_for (res); */
8225 * mono_marshal_get_native_func_wrapper:
8226 * @image: The image to use for memory allocation and for looking up custom marshallers.
8227 * @sig: The signature of the function
8228 * @func: The native function to wrap
8230 * Returns a wrapper method around native functions, similar to the pinvoke
8234 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8235 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8237 MonoMethodSignature *csig;
8239 MonoMethodBuilder *mb;
8244 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8245 if ((res = mono_marshal_find_in_cache (cache, func)))
8248 name = g_strdup_printf ("wrapper_native_%p", func);
8249 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8250 mb->method->save_lmf = 1;
8252 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8254 csig = signature_dup (image, sig);
8256 res = mono_mb_create_and_cache (cache, func,
8257 mb, csig, csig->param_count + 16);
8260 mono_marshal_set_wrapper_info (res, NULL);
8262 /* code_for (res); */
8268 * mono_marshal_emit_managed_wrapper:
8270 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8271 * the delegate which wraps the managed method to be called. For closed delegates,
8272 * it could have fewer parameters than the method it wraps.
8273 * THIS_LOC is the memory location where the target of the delegate is stored.
8276 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8278 MonoMethodSignature *sig, *csig;
8280 gboolean closed = FALSE;
8285 /* allocate local 0 (pointer) src_ptr */
8286 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8287 /* allocate local 1 (pointer) dst_ptr */
8288 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8289 /* allocate local 2 (boolean) delete_old */
8290 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8292 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8293 /* Closed delegate */
8294 g_assert (sig->param_count == invoke_sig->param_count + 1);
8296 /* Use a new signature without the first argument */
8297 sig = mono_metadata_signature_dup (sig);
8298 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8299 sig->param_count --;
8302 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8303 /* allocate local 3 to store the return value */
8304 mono_mb_add_local (mb, sig->ret);
8307 mono_mb_emit_icon (mb, 0);
8308 mono_mb_emit_stloc (mb, 2);
8310 /* we first do all conversions */
8311 tmp_locals = alloca (sizeof (int) * sig->param_count);
8312 for (i = 0; i < sig->param_count; i ++) {
8313 MonoType *t = sig->params [i];
8316 case MONO_TYPE_OBJECT:
8317 case MONO_TYPE_CLASS:
8318 case MONO_TYPE_VALUETYPE:
8319 case MONO_TYPE_ARRAY:
8320 case MONO_TYPE_SZARRAY:
8321 case MONO_TYPE_STRING:
8322 case MONO_TYPE_BOOLEAN:
8323 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8332 emit_thread_interrupt_checkpoint (mb);
8335 if (target_handle) {
8336 mono_mb_emit_icon (mb, (gint32)target_handle);
8337 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8340 g_assert_not_reached ();
8342 } else if (closed) {
8343 mono_mb_emit_icon (mb, (gint32)target_handle);
8344 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8347 for (i = 0; i < sig->param_count; i++) {
8348 MonoType *t = sig->params [i];
8350 if (tmp_locals [i]) {
8352 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8354 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8357 mono_mb_emit_ldarg (mb, i);
8360 mono_mb_emit_managed_call (mb, method, NULL);
8362 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8363 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8364 } else if (!sig->ret->byref) {
8365 switch (sig->ret->type) {
8366 case MONO_TYPE_VOID:
8368 case MONO_TYPE_BOOLEAN:
8371 case MONO_TYPE_CHAR:
8383 case MONO_TYPE_OBJECT:
8384 mono_mb_emit_stloc (mb, 3);
8386 case MONO_TYPE_STRING:
8387 csig->ret = &mono_defaults.int_class->byval_arg;
8388 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8390 case MONO_TYPE_VALUETYPE:
8391 case MONO_TYPE_CLASS:
8392 case MONO_TYPE_SZARRAY:
8393 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8396 g_warning ("return type 0x%02x unknown", sig->ret->type);
8397 g_assert_not_reached ();
8400 mono_mb_emit_stloc (mb, 3);
8403 /* Convert byref arguments back */
8404 for (i = 0; i < sig->param_count; i ++) {
8405 MonoType *t = sig->params [i];
8406 MonoMarshalSpec *spec = mspecs [i + 1];
8408 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8409 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8411 else if (t->byref) {
8413 case MONO_TYPE_CLASS:
8414 case MONO_TYPE_VALUETYPE:
8415 case MONO_TYPE_OBJECT:
8416 case MONO_TYPE_STRING:
8417 case MONO_TYPE_BOOLEAN:
8418 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8422 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8423 /* The [Out] information is encoded in the delegate signature */
8425 case MONO_TYPE_SZARRAY:
8426 case MONO_TYPE_CLASS:
8427 case MONO_TYPE_VALUETYPE:
8428 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8431 g_assert_not_reached ();
8436 if (m->retobj_var) {
8437 mono_mb_emit_ldloc (mb, m->retobj_var);
8438 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8439 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8442 if (!MONO_TYPE_IS_VOID(sig->ret))
8443 mono_mb_emit_ldloc (mb, 3);
8444 mono_mb_emit_byte (mb, CEE_RET);
8453 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8455 MonoMethodSignature *sig;
8460 * Under windows, delegates passed to native code must use the STDCALL
8461 * calling convention.
8463 csig->call_convention = MONO_CALL_STDCALL;
8466 sig = mono_method_signature (method);
8468 /* Change default calling convention if needed */
8469 /* Why is this a modopt ? */
8470 if (sig->ret && sig->ret->num_mods) {
8471 for (i = 0; i < sig->ret->num_mods; ++i) {
8472 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8473 g_assert (cmod_class);
8474 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8475 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8476 csig->call_convention = MONO_CALL_C;
8477 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8478 csig->call_convention = MONO_CALL_STDCALL;
8479 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8480 csig->call_convention = MONO_CALL_FASTCALL;
8481 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8482 csig->call_convention = MONO_CALL_THISCALL;
8489 * generates IL code to call managed methods from unmanaged code
8492 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8494 static MonoClass *UnmanagedFunctionPointerAttribute;
8495 MonoMethodSignature *sig, *csig, *invoke_sig;
8496 MonoMethodBuilder *mb;
8497 MonoMethod *res, *invoke;
8498 MonoMarshalSpec **mspecs;
8499 MonoMethodPInvoke piinfo;
8502 EmitMarshalContext m;
8504 g_assert (method != NULL);
8505 g_assert (!mono_method_signature (method)->pinvoke);
8508 * FIXME: Should cache the method+delegate type pair, since the same method
8509 * could be called with different delegates, thus different marshalling
8512 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8513 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8516 invoke = mono_get_delegate_invoke (delegate_klass);
8517 invoke_sig = mono_method_signature (invoke);
8519 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8520 mono_method_get_marshal_info (invoke, mspecs);
8522 sig = mono_method_signature (method);
8524 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8526 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8527 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8529 /* we copy the signature, so that we can modify it */
8531 /* Need to free this later */
8532 csig = mono_metadata_signature_dup (invoke_sig);
8534 csig = signature_dup (method->klass->image, invoke_sig);
8543 m.image = method->klass->image;
8545 mono_marshal_set_callconv_from_modopt (invoke, csig);
8547 /* Handle the UnmanagedFunctionPointerAttribute */
8548 if (!UnmanagedFunctionPointerAttribute)
8549 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8551 /* The attribute is only available in Net 2.0 */
8552 if (UnmanagedFunctionPointerAttribute) {
8553 MonoCustomAttrInfo *cinfo;
8554 MonoCustomAttrEntry *attr;
8557 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8558 * contents of the attribute without constructing it, as that might not be
8559 * possible when running in cross-compiling mode.
8561 cinfo = mono_custom_attrs_from_class (delegate_klass);
8564 for (i = 0; i < cinfo->num_attrs; ++i) {
8565 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8566 attr = &cinfo->attrs [i];
8572 MonoArray *typed_args, *named_args;
8573 CattrNamedArg *arginfo;
8577 MonoBoolean set_last_error = 0;
8578 MonoBoolean best_fit_mapping = 0;
8579 MonoBoolean throw_on_unmappable = 0;
8581 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8583 g_assert (mono_array_length (typed_args) == 1);
8586 o = mono_array_get (typed_args, MonoObject*, 0);
8587 call_conv = *(gint32*)mono_object_unbox (o);
8590 for (i = 0; i < mono_array_length (named_args); ++i) {
8591 CattrNamedArg *narg = &arginfo [i];
8593 o = mono_array_get (named_args, MonoObject*, i);
8595 g_assert (narg->field);
8596 if (!strcmp (narg->field->name, "CharSet")) {
8597 charset = *(gint32*)mono_object_unbox (o);
8598 } else if (!strcmp (narg->field->name, "SetLastError")) {
8599 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8600 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8601 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8602 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8603 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8605 g_assert_not_reached ();
8611 memset (&piinfo, 0, sizeof (piinfo));
8613 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8615 csig->call_convention = call_conv - 1;
8618 if (cinfo && !cinfo->cached)
8619 mono_custom_attrs_free (cinfo);
8622 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8625 res = mono_mb_create_and_cache (cache, method,
8626 mb, csig, sig->param_count + 16);
8629 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8633 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8635 mono_metadata_free_marshal_spec (mspecs [i]);
8638 /* code_for (res); */
8644 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8647 MonoMethodSignature *sig;
8648 MonoMethodBuilder *mb;
8653 method = mono_get_method (image, token, NULL);
8656 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8657 MonoMethodSignature *csig;
8658 MonoMarshalSpec **mspecs;
8659 EmitMarshalContext m;
8661 sig = mono_method_signature (method);
8662 g_assert (!sig->hasthis);
8664 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8665 mono_method_get_marshal_info (method, mspecs);
8667 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8668 csig = signature_dup (image, sig);
8679 mono_marshal_set_callconv_from_modopt (method, csig);
8681 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8683 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8686 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8689 for (i = sig->param_count; i >= 0; i--)
8691 mono_metadata_free_marshal_spec (mspecs [i]);
8694 return mono_compile_method (method);
8697 sig = mono_method_signature (method);
8698 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8700 param_count = sig->param_count + sig->hasthis;
8701 for (i = 0; i < param_count; i++)
8702 mono_mb_emit_ldarg (mb, i);
8704 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8705 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8707 mono_mb_emit_op (mb, CEE_CALL, method);
8708 mono_mb_emit_byte (mb, CEE_RET);
8711 method = mono_mb_create_method (mb, sig, param_count);
8714 return mono_compile_method (method);
8717 static MonoReflectionType *
8718 type_from_handle (MonoType *handle)
8720 MonoDomain *domain = mono_domain_get ();
8721 MonoClass *klass = mono_class_from_mono_type (handle);
8723 MONO_ARCH_SAVE_REGS;
8725 mono_class_init (klass);
8726 return mono_type_get_object (domain, handle);
8730 * mono_marshal_get_isinst:
8731 * @klass: the type of the field
8733 * This method generates a function which can be used to check if an object is
8734 * an instance of the given type, icluding the case where the object is a proxy.
8735 * The generated function has the following signature:
8736 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8739 mono_marshal_get_isinst (MonoClass *klass)
8741 static MonoMethodSignature *isint_sig = NULL;
8744 int pos_was_ok, pos_failed, pos_end, pos_end2;
8746 MonoMethodBuilder *mb;
8748 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8749 if ((res = mono_marshal_find_in_cache (cache, klass)))
8753 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8754 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8755 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8756 isint_sig->pinvoke = 0;
8759 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8760 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8763 mb->method->save_lmf = 1;
8765 /* check if the object is a proxy that needs special cast */
8766 mono_mb_emit_ldarg (mb, 0);
8767 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8768 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8770 /* The result of MONO_ISINST can be:
8771 0) the type check succeeded
8772 1) the type check did not succeed
8773 2) a CanCastTo call is needed */
8775 mono_mb_emit_byte (mb, CEE_DUP);
8776 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8778 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8779 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8781 /* get the real proxy from the transparent proxy*/
8783 mono_mb_emit_ldarg (mb, 0);
8784 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8785 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8789 mono_mb_patch_branch (mb, pos_failed);
8790 mono_mb_emit_byte (mb, CEE_LDNULL);
8791 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8795 mono_mb_patch_branch (mb, pos_was_ok);
8796 mono_mb_emit_byte (mb, CEE_POP);
8797 mono_mb_emit_ldarg (mb, 0);
8801 mono_mb_patch_branch (mb, pos_end);
8802 mono_mb_patch_branch (mb, pos_end2);
8803 mono_mb_emit_byte (mb, CEE_RET);
8805 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8812 * mono_marshal_get_castclass:
8813 * @klass: the type of the field
8815 * This method generates a function which can be used to cast an object to
8816 * an instance of the given type, icluding the case where the object is a proxy.
8817 * The generated function has the following signature:
8818 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8821 mono_marshal_get_castclass (MonoClass *klass)
8823 static MonoMethodSignature *castclass_sig = NULL;
8826 int pos_was_ok, pos_was_ok2;
8828 MonoMethodBuilder *mb;
8830 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8831 if ((res = mono_marshal_find_in_cache (cache, klass)))
8834 if (!castclass_sig) {
8835 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8836 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8837 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8838 castclass_sig->pinvoke = 0;
8841 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8842 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8845 mb->method->save_lmf = 1;
8847 /* check if the object is a proxy that needs special cast */
8848 mono_mb_emit_ldarg (mb, 0);
8849 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8850 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8852 /* The result of MONO_ISINST can be:
8853 0) the cast is valid
8854 1) cast of unknown proxy type
8855 or an exception if the cast is is invalid
8858 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8860 /* get the real proxy from the transparent proxy*/
8862 mono_mb_emit_ldarg (mb, 0);
8863 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8864 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8867 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8870 mono_mb_patch_branch (mb, pos_was_ok);
8871 mono_mb_patch_branch (mb, pos_was_ok2);
8872 mono_mb_emit_ldarg (mb, 0);
8875 mono_mb_emit_byte (mb, CEE_RET);
8877 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8884 mono_marshal_get_proxy_cancast (MonoClass *klass)
8886 static MonoMethodSignature *isint_sig = NULL;
8889 int pos_failed, pos_end;
8891 MonoMethod *can_cast_to;
8892 MonoMethodDesc *desc;
8893 MonoMethodBuilder *mb;
8895 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8896 if ((res = mono_marshal_find_in_cache (cache, klass)))
8900 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8901 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8902 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8903 isint_sig->pinvoke = 0;
8906 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8907 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8910 mb->method->save_lmf = 1;
8912 /* get the real proxy from the transparent proxy*/
8913 mono_mb_emit_ldarg (mb, 0);
8914 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8915 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8917 /* get the reflection type from the type handle */
8918 mono_mb_emit_ptr (mb, &klass->byval_arg);
8919 mono_mb_emit_icall (mb, type_from_handle);
8921 mono_mb_emit_ldarg (mb, 0);
8923 /* make the call to CanCastTo (type, ob) */
8924 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8925 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8926 g_assert (can_cast_to);
8927 mono_method_desc_free (desc);
8928 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8930 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8932 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8933 mono_mb_emit_ptr (mb, &klass->byval_arg);
8934 mono_mb_emit_icall (mb, type_from_handle);
8935 mono_mb_emit_ldarg (mb, 0);
8937 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8938 emit_thread_interrupt_checkpoint (mb);
8940 mono_mb_emit_ldarg (mb, 0);
8941 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8945 mono_mb_patch_branch (mb, pos_failed);
8946 mono_mb_emit_byte (mb, CEE_LDNULL);
8950 mono_mb_patch_branch (mb, pos_end);
8951 mono_mb_emit_byte (mb, CEE_RET);
8953 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8960 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8963 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8964 klass = mono_class_from_mono_type (rtype->type);
8965 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8969 * mono_marshal_get_struct_to_ptr:
8972 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8975 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8977 MonoMethodBuilder *mb;
8978 static MonoMethod *stoptr = NULL;
8981 g_assert (klass != NULL);
8983 mono_marshal_load_type_info (klass);
8985 if (klass->marshal_info->str_to_ptr)
8986 return klass->marshal_info->str_to_ptr;
8989 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8992 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8994 if (klass->blittable) {
8995 mono_mb_emit_byte (mb, CEE_LDARG_1);
8996 mono_mb_emit_byte (mb, CEE_LDARG_0);
8997 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8998 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8999 mono_mb_emit_byte (mb, CEE_PREFIX1);
9000 mono_mb_emit_byte (mb, CEE_CPBLK);
9003 /* allocate local 0 (pointer) src_ptr */
9004 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9005 /* allocate local 1 (pointer) dst_ptr */
9006 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9007 /* allocate local 2 (boolean) delete_old */
9008 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9009 mono_mb_emit_byte (mb, CEE_LDARG_2);
9010 mono_mb_emit_stloc (mb, 2);
9012 /* initialize src_ptr to point to the start of object data */
9013 mono_mb_emit_byte (mb, CEE_LDARG_0);
9014 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9015 mono_mb_emit_stloc (mb, 0);
9017 /* initialize dst_ptr */
9018 mono_mb_emit_byte (mb, CEE_LDARG_1);
9019 mono_mb_emit_stloc (mb, 1);
9021 emit_struct_conv (mb, klass, FALSE);
9024 mono_mb_emit_byte (mb, CEE_RET);
9026 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9029 klass->marshal_info->str_to_ptr = res;
9034 * mono_marshal_get_ptr_to_struct:
9037 * generates IL code for PtrToStructure (IntPtr src, object structure)
9040 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9042 MonoMethodBuilder *mb;
9043 static MonoMethodSignature *ptostr = NULL;
9046 g_assert (klass != NULL);
9048 mono_marshal_load_type_info (klass);
9050 if (klass->marshal_info->ptr_to_str)
9051 return klass->marshal_info->ptr_to_str;
9054 MonoMethodSignature *sig;
9056 /* Create the signature corresponding to
9057 static void PtrToStructure (IntPtr ptr, object structure);
9058 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9059 sig = mono_create_icall_signature ("void ptr object");
9060 sig = signature_dup (mono_defaults.corlib, sig);
9062 mono_memory_barrier ();
9066 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9068 if (klass->blittable) {
9069 mono_mb_emit_byte (mb, CEE_LDARG_1);
9070 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9071 mono_mb_emit_byte (mb, CEE_LDARG_0);
9072 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9073 mono_mb_emit_byte (mb, CEE_PREFIX1);
9074 mono_mb_emit_byte (mb, CEE_CPBLK);
9077 /* allocate local 0 (pointer) src_ptr */
9078 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9079 /* allocate local 1 (pointer) dst_ptr */
9080 mono_mb_add_local (mb, &klass->this_arg);
9082 /* initialize src_ptr to point to the start of object data */
9083 mono_mb_emit_byte (mb, CEE_LDARG_0);
9084 mono_mb_emit_stloc (mb, 0);
9086 /* initialize dst_ptr */
9087 mono_mb_emit_byte (mb, CEE_LDARG_1);
9088 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9089 mono_mb_emit_stloc (mb, 1);
9091 emit_struct_conv (mb, klass, TRUE);
9094 mono_mb_emit_byte (mb, CEE_RET);
9096 res = mono_mb_create_method (mb, ptostr, 0);
9099 klass->marshal_info->ptr_to_str = res;
9104 * generates IL code for the synchronized wrapper: the generated method
9105 * calls METHOD while locking 'this' or the parent type.
9108 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9110 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9111 MonoMethodSignature *sig;
9112 MonoExceptionClause *clause;
9113 MonoMethodBuilder *mb;
9116 int i, pos, this_local, ret_local = 0;
9120 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9123 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9124 if ((res = mono_marshal_find_in_cache (cache, method)))
9127 sig = signature_dup (method->klass->image, mono_method_signature (method));
9130 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9133 if (!MONO_TYPE_IS_VOID (sig->ret))
9134 ret_local = mono_mb_add_local (mb, sig->ret);
9136 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9137 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9138 /* This will throw the type load exception when the wrapper is compiled */
9139 mono_mb_emit_byte (mb, CEE_LDNULL);
9140 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9141 mono_mb_emit_byte (mb, CEE_POP);
9143 if (!MONO_TYPE_IS_VOID (sig->ret))
9144 mono_mb_emit_ldloc (mb, ret_local);
9145 mono_mb_emit_byte (mb, CEE_RET);
9147 res = mono_mb_create_and_cache (cache, method,
9148 mb, sig, sig->param_count + 16);
9155 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9157 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9158 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9160 mono_loader_lock ();
9162 if (!enter_method) {
9163 MonoMethodDesc *desc;
9165 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9166 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9167 g_assert (enter_method);
9168 mono_method_desc_free (desc);
9170 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9171 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9172 g_assert (exit_method);
9173 mono_method_desc_free (desc);
9175 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9176 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9177 g_assert (gettypefromhandle_method);
9178 mono_method_desc_free (desc);
9181 mono_loader_unlock ();
9183 /* Push this or the type object */
9184 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9185 /* We have special handling for this in the JIT */
9186 int index = mono_mb_add_data (mb, method->klass);
9187 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9188 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9189 mono_mb_emit_i4 (mb, index);
9191 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9194 mono_mb_emit_ldarg (mb, 0);
9195 mono_mb_emit_stloc (mb, this_local);
9197 /* Call Monitor::Enter() */
9198 mono_mb_emit_ldloc (mb, this_local);
9199 mono_mb_emit_managed_call (mb, enter_method, NULL);
9201 clause->try_offset = mono_mb_get_label (mb);
9203 /* Call the method */
9205 mono_mb_emit_ldarg (mb, 0);
9206 for (i = 0; i < sig->param_count; i++)
9207 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9209 mono_mb_emit_managed_call (mb, method, NULL);
9211 if (!MONO_TYPE_IS_VOID (sig->ret))
9212 mono_mb_emit_stloc (mb, ret_local);
9214 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9216 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9217 clause->handler_offset = mono_mb_get_label (mb);
9219 /* Call Monitor::Exit() */
9220 mono_mb_emit_ldloc (mb, this_local);
9221 mono_mb_emit_managed_call (mb, exit_method, NULL);
9222 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9224 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9226 mono_mb_patch_branch (mb, pos);
9227 if (!MONO_TYPE_IS_VOID (sig->ret))
9228 mono_mb_emit_ldloc (mb, ret_local);
9229 mono_mb_emit_byte (mb, CEE_RET);
9231 mono_mb_set_clauses (mb, 1, clause);
9233 res = mono_mb_create_and_cache (cache, method,
9234 mb, sig, sig->param_count + 16);
9242 * the returned method calls 'method' unboxing the this argument
9245 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9247 MonoMethodSignature *sig = mono_method_signature (method);
9249 MonoMethodBuilder *mb;
9253 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9254 if ((res = mono_marshal_find_in_cache (cache, method)))
9257 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9259 g_assert (sig->hasthis);
9261 mono_mb_emit_ldarg (mb, 0);
9262 mono_mb_emit_icon (mb, sizeof (MonoObject));
9263 mono_mb_emit_byte (mb, CEE_ADD);
9264 for (i = 0; i < sig->param_count; ++i)
9265 mono_mb_emit_ldarg (mb, i + 1);
9266 mono_mb_emit_managed_call (mb, method, NULL);
9267 mono_mb_emit_byte (mb, CEE_RET);
9269 res = mono_mb_create_and_cache (cache, method,
9270 mb, sig, sig->param_count + 16);
9273 /* code_for (res); */
9279 mono_marshal_get_stelemref ()
9281 static MonoMethod* ret = NULL;
9282 MonoMethodSignature *sig;
9283 MonoMethodBuilder *mb;
9285 guint32 b1, b2, b3, b4;
9288 int array_slot_addr;
9293 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9296 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9298 /* void stelemref (void* array, int idx, void* value) */
9299 sig->ret = &mono_defaults.void_class->byval_arg;
9300 sig->params [0] = &mono_defaults.object_class->byval_arg;
9301 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9302 sig->params [2] = &mono_defaults.object_class->byval_arg;
9304 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9305 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9306 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9310 <ldelema (bound check)>
9314 aklass = array->vtable->klass->element_class;
9315 vklass = value->vtable->klass;
9317 if (vklass->idepth < aklass->idepth)
9320 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9324 *array_slot_addr = value;
9328 if (mono_object_isinst (value, aklass))
9331 throw new ArrayTypeMismatchException ();
9334 /* ldelema (implicit bound check) */
9335 mono_mb_emit_ldarg (mb, 0);
9336 mono_mb_emit_ldarg (mb, 1);
9337 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9338 mono_mb_emit_stloc (mb, array_slot_addr);
9340 /* if (!value) goto do_store */
9341 mono_mb_emit_ldarg (mb, 2);
9342 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9344 /* aklass = array->vtable->klass->element_class */
9345 mono_mb_emit_ldarg (mb, 0);
9346 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9347 mono_mb_emit_byte (mb, CEE_LDIND_I);
9348 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9349 mono_mb_emit_byte (mb, CEE_LDIND_I);
9350 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9351 mono_mb_emit_byte (mb, CEE_LDIND_I);
9352 mono_mb_emit_stloc (mb, aklass);
9354 /* vklass = value->vtable->klass */
9355 mono_mb_emit_ldarg (mb, 2);
9356 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9357 mono_mb_emit_byte (mb, CEE_LDIND_I);
9358 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9359 mono_mb_emit_byte (mb, CEE_LDIND_I);
9360 mono_mb_emit_stloc (mb, vklass);
9362 /* if (vklass->idepth < aklass->idepth) goto failue */
9363 mono_mb_emit_ldloc (mb, vklass);
9364 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9365 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9367 mono_mb_emit_ldloc (mb, aklass);
9368 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9369 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9371 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9373 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9374 mono_mb_emit_ldloc (mb, vklass);
9375 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9376 mono_mb_emit_byte (mb, CEE_LDIND_I);
9378 mono_mb_emit_ldloc (mb, aklass);
9379 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9380 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9381 mono_mb_emit_icon (mb, 1);
9382 mono_mb_emit_byte (mb, CEE_SUB);
9383 mono_mb_emit_icon (mb, sizeof (void*));
9384 mono_mb_emit_byte (mb, CEE_MUL);
9385 mono_mb_emit_byte (mb, CEE_ADD);
9386 mono_mb_emit_byte (mb, CEE_LDIND_I);
9388 mono_mb_emit_ldloc (mb, aklass);
9390 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9392 copy_pos = mono_mb_get_label (mb);
9394 mono_mb_patch_branch (mb, b1);
9395 mono_mb_emit_ldloc (mb, array_slot_addr);
9396 mono_mb_emit_ldarg (mb, 2);
9397 mono_mb_emit_byte (mb, CEE_STIND_REF);
9399 mono_mb_emit_byte (mb, CEE_RET);
9402 mono_mb_patch_branch (mb, b2);
9403 mono_mb_patch_branch (mb, b3);
9405 mono_mb_emit_ldarg (mb, 2);
9406 mono_mb_emit_ldloc (mb, aklass);
9407 mono_mb_emit_icall (mb, mono_object_isinst);
9409 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9410 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9411 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9413 mono_mb_emit_byte (mb, CEE_RET);
9414 ret = mono_mb_create_method (mb, sig, 4);
9425 /* LOCKING: vars accessed under the marshal lock */
9426 static ArrayElemAddr *elem_addr_cache = NULL;
9427 static int elem_addr_cache_size = 0;
9428 static int elem_addr_cache_next = 0;
9431 * mono_marshal_get_array_address:
9432 * @rank: rank of the array type
9433 * @elem_size: size in bytes of an element of an array.
9435 * Returns a MonoMethd that implements the code to get the address
9436 * of an element in a multi-dimenasional array of @rank dimensions.
9437 * The returned method takes an array as the first argument and then
9438 * @rank indexes for the @rank dimensions.
9441 mono_marshal_get_array_address (int rank, int elem_size)
9444 MonoMethodBuilder *mb;
9445 MonoMethodSignature *sig;
9446 int i, bounds, ind, realidx;
9447 int branch_pos, *branch_positions;
9451 mono_marshal_lock ();
9452 for (i = 0; i < elem_addr_cache_next; ++i) {
9453 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9454 ret = elem_addr_cache [i].method;
9458 mono_marshal_unlock ();
9462 branch_positions = g_new0 (int, rank);
9464 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9466 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9467 sig->ret = &mono_defaults.int_class->byval_arg;
9468 sig->params [0] = &mono_defaults.object_class->byval_arg;
9469 for (i = 0; i < rank; ++i) {
9470 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9473 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9475 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9476 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9477 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9479 /* bounds = array->bounds; */
9480 mono_mb_emit_ldarg (mb, 0);
9481 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9482 mono_mb_emit_byte (mb, CEE_LDIND_I);
9483 mono_mb_emit_stloc (mb, bounds);
9485 /* ind is the overall element index, realidx is the partial index in a single dimension */
9486 /* ind = idx0 - bounds [0].lower_bound */
9487 mono_mb_emit_ldarg (mb, 1);
9488 mono_mb_emit_ldloc (mb, bounds);
9489 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9490 mono_mb_emit_byte (mb, CEE_ADD);
9491 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9492 mono_mb_emit_byte (mb, CEE_SUB);
9493 mono_mb_emit_stloc (mb, ind);
9494 /* if (ind >= bounds [0].length) goto exeception; */
9495 mono_mb_emit_ldloc (mb, ind);
9496 mono_mb_emit_ldloc (mb, bounds);
9497 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9498 mono_mb_emit_byte (mb, CEE_ADD);
9499 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9500 /* note that we use unsigned comparison */
9501 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9503 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9504 * We could also decide to ignore the passed elem_size and get it
9505 * from the array object, to reduce the number of methods we generate:
9506 * the additional cost is 3 memory loads and a non-immediate mul.
9508 for (i = 1; i < rank; ++i) {
9509 /* realidx = idxi - bounds [i].lower_bound */
9510 mono_mb_emit_ldarg (mb, 1 + i);
9511 mono_mb_emit_ldloc (mb, bounds);
9512 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9513 mono_mb_emit_byte (mb, CEE_ADD);
9514 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9515 mono_mb_emit_byte (mb, CEE_SUB);
9516 mono_mb_emit_stloc (mb, realidx);
9517 /* if (realidx >= bounds [i].length) goto exeception; */
9518 mono_mb_emit_ldloc (mb, realidx);
9519 mono_mb_emit_ldloc (mb, bounds);
9520 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9521 mono_mb_emit_byte (mb, CEE_ADD);
9522 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9523 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9524 /* ind = ind * bounds [i].length + realidx */
9525 mono_mb_emit_ldloc (mb, ind);
9526 mono_mb_emit_ldloc (mb, bounds);
9527 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9528 mono_mb_emit_byte (mb, CEE_ADD);
9529 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9530 mono_mb_emit_byte (mb, CEE_MUL);
9531 mono_mb_emit_ldloc (mb, realidx);
9532 mono_mb_emit_byte (mb, CEE_ADD);
9533 mono_mb_emit_stloc (mb, ind);
9536 /* return array->vector + ind * element_size */
9537 mono_mb_emit_ldarg (mb, 0);
9538 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9539 mono_mb_emit_ldloc (mb, ind);
9540 mono_mb_emit_icon (mb, elem_size);
9541 mono_mb_emit_byte (mb, CEE_MUL);
9542 mono_mb_emit_byte (mb, CEE_ADD);
9543 mono_mb_emit_byte (mb, CEE_RET);
9545 /* patch the branches to get here and throw */
9546 for (i = 1; i < rank; ++i) {
9547 mono_mb_patch_branch (mb, branch_positions [i]);
9549 mono_mb_patch_branch (mb, branch_pos);
9550 /* throw exception */
9551 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9553 g_free (branch_positions);
9554 ret = mono_mb_create_method (mb, sig, 4);
9557 /* cache the result */
9559 mono_marshal_lock ();
9560 for (i = 0; i < elem_addr_cache_next; ++i) {
9561 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9562 /* FIXME: free ret */
9563 ret = elem_addr_cache [i].method;
9569 ElementAddrWrapperInfo *info;
9571 if (elem_addr_cache_next >= elem_addr_cache_size) {
9572 int new_size = elem_addr_cache_size + 4;
9573 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9574 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9575 g_free (elem_addr_cache);
9576 elem_addr_cache = new_array;
9577 elem_addr_cache_size = new_size;
9579 elem_addr_cache [elem_addr_cache_next].rank = rank;
9580 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9581 elem_addr_cache [elem_addr_cache_next].method = ret;
9583 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
9585 info->elem_size = elem_size;
9587 mono_marshal_set_wrapper_info (ret, info);
9589 mono_marshal_unlock ();
9594 mono_marshal_alloc (gulong size)
9599 res = CoTaskMemAlloc (size);
9601 res = g_try_malloc ((gulong)size);
9603 mono_gc_out_of_memory ((gulong)size);
9609 mono_marshal_free (gpointer ptr)
9612 CoTaskMemFree (ptr);
9619 mono_marshal_free_array (gpointer *ptr, int size)
9626 for (i = 0; i < size; i++)
9632 mono_marshal_string_to_utf16 (MonoString *s)
9634 return s ? mono_string_chars (s) : NULL;
9638 mono_marshal_string_to_utf16_copy (MonoString *s)
9643 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9644 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9645 res [mono_string_length (s)] = 0;
9651 * mono_marshal_set_last_error:
9653 * This function is invoked to set the last error value from a P/Invoke call
9654 * which has SetLastError set.
9657 mono_marshal_set_last_error (void)
9660 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9662 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9667 mono_marshal_set_last_error_windows (int error)
9670 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9675 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9676 gpointer dest, gint32 length)
9681 MONO_ARCH_SAVE_REGS;
9683 MONO_CHECK_ARG_NULL (src);
9684 MONO_CHECK_ARG_NULL (dest);
9686 if (src->obj.vtable->klass->rank != 1)
9687 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9688 if (start_index < 0)
9689 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9691 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9692 if (start_index + length > mono_array_length (src))
9693 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9695 element_size = mono_array_element_size (src->obj.vtable->klass);
9697 /* no references should be involved */
9698 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9700 memcpy (dest, source_addr, length * element_size);
9704 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9705 MonoArray *dest, gint32 length)
9710 MONO_ARCH_SAVE_REGS;
9712 MONO_CHECK_ARG_NULL (src);
9713 MONO_CHECK_ARG_NULL (dest);
9715 if (dest->obj.vtable->klass->rank != 1)
9716 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9717 if (start_index < 0)
9718 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9720 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9721 if (start_index + length > mono_array_length (dest))
9722 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9724 element_size = mono_array_element_size (dest->obj.vtable->klass);
9726 /* no references should be involved */
9727 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9729 memcpy (dest_addr, src, length * element_size);
9732 #if NO_UNALIGNED_ACCESS
9733 #define RETURN_UNALIGNED(type, addr) \
9736 memcpy(&val, p + offset, sizeof(val)); \
9739 #define WRITE_UNALIGNED(type, addr, val) \
9740 memcpy(addr, &val, sizeof(type))
9742 #define RETURN_UNALIGNED(type, addr) \
9743 return *(type*)(p + offset);
9744 #define WRITE_UNALIGNED(type, addr, val) \
9745 (*(type *)(addr) = (val))
9749 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9753 MONO_ARCH_SAVE_REGS;
9755 RETURN_UNALIGNED(gpointer, p + offset);
9759 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9763 MONO_ARCH_SAVE_REGS;
9765 return *(unsigned char*)(p + offset);
9769 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9773 MONO_ARCH_SAVE_REGS;
9775 RETURN_UNALIGNED(gint16, p + offset);
9779 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9783 MONO_ARCH_SAVE_REGS;
9785 RETURN_UNALIGNED(gint32, p + offset);
9789 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9793 MONO_ARCH_SAVE_REGS;
9795 RETURN_UNALIGNED(gint64, p + offset);
9799 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9803 MONO_ARCH_SAVE_REGS;
9805 *(unsigned char*)(p + offset) = val;
9809 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9813 MONO_ARCH_SAVE_REGS;
9815 WRITE_UNALIGNED(gpointer, p + offset, val);
9819 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9823 MONO_ARCH_SAVE_REGS;
9825 WRITE_UNALIGNED(gint16, p + offset, val);
9829 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9833 MONO_ARCH_SAVE_REGS;
9835 WRITE_UNALIGNED(gint32, p + offset, val);
9839 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9843 MONO_ARCH_SAVE_REGS;
9845 WRITE_UNALIGNED(gint64, p + offset, val);
9849 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9851 MONO_ARCH_SAVE_REGS;
9856 return mono_string_new (mono_domain_get (), ptr);
9860 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9862 MONO_ARCH_SAVE_REGS;
9865 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9866 g_assert_not_reached ();
9869 return mono_string_new_len (mono_domain_get (), ptr, len);
9874 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9876 MonoDomain *domain = mono_domain_get ();
9880 MONO_ARCH_SAVE_REGS;
9888 return mono_string_new_utf16 (domain, ptr, len);
9892 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9894 MonoDomain *domain = mono_domain_get ();
9896 MONO_ARCH_SAVE_REGS;
9899 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9900 g_assert_not_reached ();
9903 return mono_string_new_utf16 (domain, ptr, len);
9908 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9910 MONO_ARCH_SAVE_REGS;
9912 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9916 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9922 MONO_ARCH_SAVE_REGS;
9924 MONO_CHECK_ARG_NULL (rtype);
9927 klass = mono_class_from_mono_type (type);
9928 if (!mono_class_init (klass))
9929 mono_raise_exception (mono_class_get_exception_for_failure (klass));
9931 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9933 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9937 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9938 exc = mono_get_exception_argument ("t", msg);
9940 mono_raise_exception (exc);
9944 return mono_class_native_size (klass, NULL);
9948 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9953 MONO_ARCH_SAVE_REGS;
9955 MONO_CHECK_ARG_NULL (obj);
9956 MONO_CHECK_ARG_NULL (dst);
9958 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9962 pa [2] = &delete_old;
9964 mono_runtime_invoke (method, NULL, pa, NULL);
9968 ptr_to_structure (gpointer src, MonoObject *dst)
9973 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9978 mono_runtime_invoke (method, NULL, pa, NULL);
9982 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9986 MONO_ARCH_SAVE_REGS;
9988 MONO_CHECK_ARG_NULL (src);
9989 MONO_CHECK_ARG_NULL (dst);
9991 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9993 if (t->type == MONO_TYPE_VALUETYPE) {
9997 tmp = g_strdup_printf ("Destination is a boxed value type.");
9998 exc = mono_get_exception_argument ("dst", tmp);
10001 mono_raise_exception (exc);
10005 ptr_to_structure (src, dst);
10009 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10012 MonoDomain *domain = mono_domain_get ();
10015 MONO_ARCH_SAVE_REGS;
10017 MONO_CHECK_ARG_NULL (src);
10018 MONO_CHECK_ARG_NULL (type);
10020 klass = mono_class_from_mono_type (type->type);
10021 if (!mono_class_init (klass))
10022 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10024 res = mono_object_new (domain, klass);
10026 ptr_to_structure (src, res);
10032 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10034 MonoMarshalType *info;
10037 int match_index = -1;
10039 MONO_ARCH_SAVE_REGS;
10041 MONO_CHECK_ARG_NULL (type);
10042 MONO_CHECK_ARG_NULL (field_name);
10044 fname = mono_string_to_utf8 (field_name);
10045 klass = mono_class_from_mono_type (type->type);
10046 if (!mono_class_init (klass))
10047 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10049 while (klass && match_index == -1) {
10050 MonoClassField* field;
10052 gpointer iter = NULL;
10053 while ((field = mono_class_get_fields (klass, &iter))) {
10054 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10056 if (!strcmp (fname, mono_field_get_name (field))) {
10063 if (match_index == -1)
10064 klass = klass->parent;
10069 if(match_index == -1) {
10070 MonoException* exc;
10073 /* Get back original class instance */
10074 klass = mono_class_from_mono_type (type->type);
10076 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10077 exc = mono_get_exception_argument ("fieldName", tmp);
10080 mono_raise_exception ((MonoException*)exc);
10083 info = mono_marshal_load_type_info (klass);
10084 return info->fields [match_index].offset;
10088 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10093 tres = mono_string_to_utf8 (string);
10097 len = strlen (tres) + 1;
10098 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10099 memcpy (ret, tres, len);
10104 return mono_string_to_utf8 (string);
10109 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10111 MONO_ARCH_SAVE_REGS;
10113 if (string == NULL)
10116 #ifdef TARGET_WIN32
10117 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10118 ((mono_string_length (string) + 1) * 2);
10120 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10122 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10123 res [mono_string_length (string)] = 0;
10129 mono_struct_delete_old (MonoClass *klass, char *ptr)
10131 MonoMarshalType *info;
10134 info = mono_marshal_load_type_info (klass);
10136 for (i = 0; i < info->num_fields; i++) {
10137 MonoMarshalNative ntype;
10138 MonoMarshalConv conv;
10139 MonoType *ftype = info->fields [i].field->type;
10142 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10145 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10146 klass->unicode, &conv);
10148 cpos = ptr + info->fields [i].offset;
10151 case MONO_MARSHAL_CONV_NONE:
10152 if (MONO_TYPE_ISSTRUCT (ftype)) {
10153 mono_struct_delete_old (ftype->data.klass, cpos);
10157 case MONO_MARSHAL_CONV_STR_LPWSTR:
10158 /* We assume this field points inside a MonoString */
10160 case MONO_MARSHAL_CONV_STR_LPTSTR:
10161 #ifdef TARGET_WIN32
10162 /* We assume this field points inside a MonoString
10166 case MONO_MARSHAL_CONV_STR_LPSTR:
10167 case MONO_MARSHAL_CONV_STR_BSTR:
10168 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10169 case MONO_MARSHAL_CONV_STR_TBSTR:
10170 mono_marshal_free (*(gpointer *)cpos);
10180 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10184 MONO_ARCH_SAVE_REGS;
10186 MONO_CHECK_ARG_NULL (src);
10187 MONO_CHECK_ARG_NULL (type);
10189 klass = mono_class_from_mono_type (type->type);
10190 if (!mono_class_init (klass))
10191 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10193 mono_struct_delete_old (klass, (char *)src);
10197 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10201 MONO_ARCH_SAVE_REGS;
10203 if ((gulong)size == 0)
10204 /* This returns a valid pointer for size 0 on MS.NET */
10208 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10210 res = g_try_malloc ((gulong)size);
10213 mono_gc_out_of_memory ((gulong)size);
10219 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10224 mono_gc_out_of_memory ((gulong)size);
10229 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10231 res = g_try_realloc (ptr, (gulong)size);
10234 mono_gc_out_of_memory ((gulong)size);
10240 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10242 MONO_ARCH_SAVE_REGS;
10252 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10254 MONO_ARCH_SAVE_REGS;
10257 return CoTaskMemAlloc (size);
10259 return g_try_malloc ((gulong)size);
10264 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10266 MONO_ARCH_SAVE_REGS;
10269 CoTaskMemFree (ptr);
10276 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10278 MONO_ARCH_SAVE_REGS;
10281 return CoTaskMemRealloc (ptr, size);
10283 return g_try_realloc (ptr, (gulong)size);
10288 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10290 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10294 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10296 MonoClass *klass = mono_type_get_class (type->type);
10297 if (!mono_class_init (klass))
10298 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10300 return mono_ftnptr_to_delegate (klass, ftn);
10304 * mono_marshal_is_loading_type_info:
10306 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10310 mono_marshal_is_loading_type_info (MonoClass *klass)
10312 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10314 return g_slist_find (loads_list, klass) != NULL;
10318 * mono_marshal_load_type_info:
10320 * Initialize klass->marshal_info using information from metadata. This function can
10321 * recursively call itself, and the caller is responsible to avoid that by calling
10322 * mono_marshal_is_loading_type_info () beforehand.
10324 * LOCKING: Acquires the loader lock.
10327 mono_marshal_load_type_info (MonoClass* klass)
10330 guint32 native_size = 0, min_align = 1;
10331 MonoMarshalType *info;
10332 MonoClassField* field;
10335 GSList *loads_list;
10337 g_assert (klass != NULL);
10339 if (klass->marshal_info)
10340 return klass->marshal_info;
10342 if (!klass->inited)
10343 mono_class_init (klass);
10345 mono_loader_lock ();
10347 if (klass->marshal_info) {
10348 mono_loader_unlock ();
10349 return klass->marshal_info;
10353 * This function can recursively call itself, so we keep the list of classes which are
10354 * under initialization in a TLS list.
10356 g_assert (!mono_marshal_is_loading_type_info (klass));
10357 loads_list = TlsGetValue (load_type_info_tls_id);
10358 loads_list = g_slist_prepend (loads_list, klass);
10359 TlsSetValue (load_type_info_tls_id, loads_list);
10362 while ((field = mono_class_get_fields (klass, &iter))) {
10363 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10365 if (mono_field_is_deleted (field))
10370 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10372 /* The mempool is protected by the loader lock */
10373 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10374 info->num_fields = count;
10376 /* Try to find a size for this type in metadata */
10377 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10379 if (klass->parent) {
10380 int parent_size = mono_class_native_size (klass->parent, NULL);
10382 /* Add parent size to real size */
10383 native_size += parent_size;
10384 info->native_size = parent_size;
10389 while ((field = mono_class_get_fields (klass, &iter))) {
10393 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10396 if (mono_field_is_deleted (field))
10398 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10399 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10400 NULL, NULL, &info->fields [j].mspec);
10402 info->fields [j].field = field;
10404 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10405 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10406 /* This field is a hack inserted by MCS to empty structures */
10411 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10412 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10413 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10414 &align, TRUE, klass->unicode);
10415 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10416 min_align = MAX (align, min_align);
10417 info->fields [j].offset = info->native_size;
10418 info->fields [j].offset += align - 1;
10419 info->fields [j].offset &= ~(align - 1);
10420 info->native_size = info->fields [j].offset + size;
10422 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10423 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10424 &align, TRUE, klass->unicode);
10425 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10426 min_align = MAX (align, min_align);
10427 info->fields [j].offset = field->offset - sizeof (MonoObject);
10428 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10434 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10435 info->native_size = MAX (native_size, info->native_size);
10438 if (info->native_size & (min_align - 1)) {
10439 info->native_size += min_align - 1;
10440 info->native_size &= ~(min_align - 1);
10443 info->min_align = min_align;
10445 /* Update the class's blittable info, if the layouts don't match */
10446 if (info->native_size != mono_class_value_size (klass, NULL))
10447 klass->blittable = FALSE;
10449 /* If this is an array type, ensure that we have element info */
10450 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10451 mono_marshal_load_type_info (klass->element_class);
10454 loads_list = TlsGetValue (load_type_info_tls_id);
10455 loads_list = g_slist_remove (loads_list, klass);
10456 TlsSetValue (load_type_info_tls_id, loads_list);
10458 /*We do double-checking locking on marshal_info */
10459 mono_memory_barrier ();
10461 klass->marshal_info = info;
10463 mono_loader_unlock ();
10465 return klass->marshal_info;
10469 * mono_class_native_size:
10472 * Returns: the native size of an object instance (when marshaled
10473 * to unmanaged code)
10476 mono_class_native_size (MonoClass *klass, guint32 *align)
10478 if (!klass->marshal_info) {
10479 if (mono_marshal_is_loading_type_info (klass)) {
10484 mono_marshal_load_type_info (klass);
10489 *align = klass->marshal_info->min_align;
10491 return klass->marshal_info->native_size;
10494 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10495 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10496 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10497 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10500 * mono_type_native_stack_size:
10501 * @t: the type to return the size it uses on the stack
10503 * Returns: the number of bytes required to hold an instance of this
10504 * type on the native stack
10507 mono_type_native_stack_size (MonoType *t, guint32 *align)
10511 g_assert (t != NULL);
10517 *align = sizeof (gpointer);
10518 return sizeof (gpointer);
10522 case MONO_TYPE_BOOLEAN:
10523 case MONO_TYPE_CHAR:
10534 case MONO_TYPE_STRING:
10535 case MONO_TYPE_OBJECT:
10536 case MONO_TYPE_CLASS:
10537 case MONO_TYPE_SZARRAY:
10538 case MONO_TYPE_PTR:
10539 case MONO_TYPE_FNPTR:
10540 case MONO_TYPE_ARRAY:
10541 *align = sizeof (gpointer);
10542 return sizeof (gpointer);
10547 *align = ALIGNMENT (gdouble);
10551 *align = ALIGNMENT (glong);
10553 case MONO_TYPE_GENERICINST:
10554 if (!mono_type_generic_inst_is_valuetype (t)) {
10555 *align = sizeof (gpointer);
10556 return sizeof (gpointer);
10559 case MONO_TYPE_TYPEDBYREF:
10560 case MONO_TYPE_VALUETYPE: {
10562 MonoClass *klass = mono_class_from_mono_type (t);
10564 if (klass->enumtype)
10565 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10567 size = mono_class_native_size (klass, align);
10568 *align = *align + 3;
10578 g_error ("type 0x%02x unknown", t->type);
10584 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10585 gboolean as_field, gboolean unicode)
10587 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10590 switch (native_type) {
10591 case MONO_NATIVE_BOOLEAN:
10594 case MONO_NATIVE_I1:
10595 case MONO_NATIVE_U1:
10598 case MONO_NATIVE_I2:
10599 case MONO_NATIVE_U2:
10600 case MONO_NATIVE_VARIANTBOOL:
10603 case MONO_NATIVE_I4:
10604 case MONO_NATIVE_U4:
10605 case MONO_NATIVE_ERROR:
10608 case MONO_NATIVE_I8:
10609 case MONO_NATIVE_U8:
10610 *align = ALIGNMENT(guint64);
10612 case MONO_NATIVE_R4:
10615 case MONO_NATIVE_R8:
10616 *align = ALIGNMENT(double);
10618 case MONO_NATIVE_INT:
10619 case MONO_NATIVE_UINT:
10620 case MONO_NATIVE_LPSTR:
10621 case MONO_NATIVE_LPWSTR:
10622 case MONO_NATIVE_LPTSTR:
10623 case MONO_NATIVE_BSTR:
10624 case MONO_NATIVE_ANSIBSTR:
10625 case MONO_NATIVE_TBSTR:
10626 case MONO_NATIVE_LPARRAY:
10627 case MONO_NATIVE_SAFEARRAY:
10628 case MONO_NATIVE_IUNKNOWN:
10629 case MONO_NATIVE_IDISPATCH:
10630 case MONO_NATIVE_INTERFACE:
10631 case MONO_NATIVE_ASANY:
10632 case MONO_NATIVE_FUNC:
10633 case MONO_NATIVE_LPSTRUCT:
10634 *align = ALIGNMENT(gpointer);
10635 return sizeof (gpointer);
10636 case MONO_NATIVE_STRUCT:
10637 klass = mono_class_from_mono_type (type);
10638 if (klass == mono_defaults.object_class &&
10639 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10643 return mono_class_native_size (klass, align);
10644 case MONO_NATIVE_BYVALTSTR: {
10645 int esize = unicode ? 2: 1;
10648 return mspec->data.array_data.num_elem * esize;
10650 case MONO_NATIVE_BYVALARRAY: {
10651 // FIXME: Have to consider ArraySubType
10653 klass = mono_class_from_mono_type (type);
10654 if (klass->element_class == mono_defaults.char_class) {
10655 esize = unicode ? 2 : 1;
10658 esize = mono_class_native_size (klass->element_class, align);
10661 return mspec->data.array_data.num_elem * esize;
10663 case MONO_NATIVE_CUSTOM:
10664 *align = sizeof (gpointer);
10665 return sizeof (gpointer);
10667 case MONO_NATIVE_CURRENCY:
10668 case MONO_NATIVE_VBBYREFSTR:
10670 g_error ("native type %02x not implemented", native_type);
10673 g_assert_not_reached ();
10678 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10686 t = &o->vtable->klass->byval_arg;
10690 case MONO_TYPE_PTR:
10693 case MONO_TYPE_BOOLEAN:
10696 case MONO_TYPE_CHAR:
10701 return mono_object_unbox (o);
10703 case MONO_TYPE_STRING:
10704 switch (string_encoding) {
10705 case MONO_NATIVE_LPWSTR:
10706 return mono_string_to_utf16 ((MonoString*)o);
10708 case MONO_NATIVE_LPSTR:
10709 return mono_string_to_lpstr ((MonoString*)o);
10712 g_warning ("marshaling conversion %d not implemented", string_encoding);
10713 g_assert_not_reached ();
10716 case MONO_TYPE_CLASS:
10717 case MONO_TYPE_VALUETYPE: {
10718 MonoMethod *method;
10721 MonoBoolean delete_old = FALSE;
10723 klass = t->data.klass;
10725 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10728 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10729 klass->blittable || klass->enumtype))
10730 return mono_object_unbox (o);
10732 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10734 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10735 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10739 pa [2] = &delete_old;
10741 mono_runtime_invoke (method, NULL, pa, NULL);
10748 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10754 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10762 t = &o->vtable->klass->byval_arg;
10764 case MONO_TYPE_STRING:
10765 switch (string_encoding) {
10766 case MONO_NATIVE_LPWSTR:
10767 case MONO_NATIVE_LPSTR:
10768 mono_marshal_free (ptr);
10771 g_warning ("marshaling conversion %d not implemented", string_encoding);
10772 g_assert_not_reached ();
10775 case MONO_TYPE_CLASS:
10776 case MONO_TYPE_VALUETYPE: {
10777 klass = t->data.klass;
10779 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10780 klass->blittable || klass->enumtype))
10783 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10784 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10790 mono_runtime_invoke (method, NULL, pa, NULL);
10793 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10794 mono_struct_delete_old (klass, ptr);
10797 mono_marshal_free (ptr);
10808 * Wrappers of generic instances need to be dynamic, since they cannot be freed when their
10809 * image is unloaded, since the generic instance they are based on does not belong to any
10810 * image. This function should be the value dtor of caches holding such wrappers.
10813 free_wrapper (MonoMethod *method)
10815 if (method->dynamic)
10816 mono_free_method (method);
10820 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10822 MonoMethodSignature *sig, *csig;
10823 MonoMethodBuilder *mb;
10828 cache = get_cache_full (&method->klass->image->generic_array_helper_cache, mono_aligned_addr_hash, NULL, NULL, (GDestroyNotify)free_wrapper);
10830 if ((res = mono_marshal_find_in_cache (cache, method)))
10833 mb = mono_mb_new (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10834 mb->method->slot = -1;
10835 mb->dynamic = TRUE;
10837 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10838 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10840 sig = mono_method_signature (method);
10841 csig = signature_dup (NULL, sig);
10842 csig->generic_param_count = 0;
10844 mono_mb_emit_ldarg (mb, 0);
10845 for (i = 0; i < csig->param_count; i++)
10846 mono_mb_emit_ldarg (mb, i + 1);
10847 mono_mb_emit_managed_call (mb, method, NULL);
10848 mono_mb_emit_byte (mb, CEE_RET);
10850 /* We can corlib internal methods */
10851 mb->skip_visibility = TRUE;
10853 res = mono_mb_create_and_cache (cache, method, mb, csig, csig->param_count + 16);
10861 * The mono_win32_compat_* functions are implementations of inline
10862 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10863 * although not exported by kernel32.
10865 * We map the appropiate kernel32 entries to these functions using
10866 * dllmaps declared in the global etc/mono/config.
10870 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10872 if (!dest || !source)
10875 memcpy (dest, source, length);
10879 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10881 memset (dest, fill, length);
10885 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10887 if (!dest || !source)
10890 memmove (dest, source, length);
10894 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10896 memset (dest, 0, length);
10900 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10905 for (i = 0; i < len; ++i)
10909 g_assert (i < len);
10912 while (byte && !(byte & 1))
10914 g_assert (byte == 1);
10917 *bitmask = buf [i];
10921 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10923 MonoMethodBuilder *mb;
10924 MonoMethodSignature *sig, *csig;
10925 MonoExceptionClause *clause;
10930 int i, param_count, sig_size, pos_leave;
10934 klass = method->klass;
10935 image = method->klass->image;
10936 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10938 if ((res = mono_marshal_find_in_cache (cache, method)))
10941 sig = mono_method_signature (method);
10942 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10944 /* add "this" and exception param */
10945 param_count = sig->param_count + sig->hasthis + 1;
10947 /* dup & extend signature */
10948 csig = mono_metadata_signature_alloc (image, param_count);
10949 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
10950 memcpy (csig, sig, sig_size);
10951 csig->param_count = param_count;
10954 csig->call_convention = MONO_CALL_DEFAULT;
10956 if (sig->hasthis) {
10958 csig->params [0] = &klass->byval_arg;
10959 /* move params up by one */
10960 for (i = 0; i < sig->param_count; i++)
10961 csig->params [i + 1] = sig->params [i];
10964 /* setup exception param as byref+[out] */
10965 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10966 &mono_defaults.exception_class->byval_arg);
10967 csig->params [param_count - 1]->byref = 1;
10968 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10970 /* convert struct return to object */
10971 if (MONO_TYPE_ISSTRUCT (sig->ret))
10972 csig->ret = &mono_defaults.object_class->byval_arg;
10974 /* local 0 (temp for exception object) */
10975 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10977 /* local 1 (temp for result) */
10978 if (!MONO_TYPE_IS_VOID (sig->ret))
10979 mono_mb_add_local (mb, sig->ret);
10981 /* clear exception arg */
10982 mono_mb_emit_ldarg (mb, param_count - 1);
10983 mono_mb_emit_byte (mb, CEE_LDNULL);
10984 mono_mb_emit_byte (mb, CEE_STIND_REF);
10987 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10988 clause->try_offset = mono_mb_get_label (mb);
10990 /* push method's args */
10991 for (i = 0; i < param_count - 1; i++) {
10995 mono_mb_emit_ldarg (mb, i);
10997 /* get the byval type of the param */
10998 klass = mono_class_from_mono_type (csig->params [i]);
10999 type = &klass->byval_arg;
11001 /* unbox struct args */
11002 if (MONO_TYPE_ISSTRUCT (type)) {
11003 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11005 /* byref args & and the "this" arg must remain a ptr.
11006 Otherwise make a copy of the value type */
11007 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11008 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11010 csig->params [i] = &mono_defaults.object_class->byval_arg;
11015 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11016 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11018 mono_mb_emit_op (mb, CEE_CALL, method);
11020 /* save result at local 1 */
11021 if (!MONO_TYPE_IS_VOID (sig->ret))
11022 mono_mb_emit_stloc (mb, 1);
11024 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11027 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11028 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11029 clause->data.catch_class = mono_defaults.object_class;
11031 clause->handler_offset = mono_mb_get_label (mb);
11033 /* store exception at local 0 */
11034 mono_mb_emit_stloc (mb, 0);
11035 mono_mb_emit_ldarg (mb, param_count - 1);
11036 mono_mb_emit_ldloc (mb, 0);
11037 mono_mb_emit_byte (mb, CEE_STIND_REF);
11038 mono_mb_emit_branch (mb, CEE_LEAVE);
11040 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11042 mono_mb_set_clauses (mb, 1, clause);
11044 mono_mb_patch_branch (mb, pos_leave);
11047 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11048 mono_mb_emit_ldloc (mb, 1);
11050 /* box the return value */
11051 if (MONO_TYPE_ISSTRUCT (sig->ret))
11052 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11055 mono_mb_emit_byte (mb, CEE_RET);
11057 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11064 * mono_marshal_free_dynamic_wrappers:
11066 * Free wrappers of the dynamic method METHOD.
11069 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11071 g_assert (method->dynamic);
11073 /* This could be called during shutdown */
11074 if (marshal_mutex_initialized)
11075 mono_marshal_lock ();
11077 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11078 * they could be shared with other methods ?
11080 if (method->klass->image->runtime_invoke_direct_cache)
11081 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11082 if (marshal_mutex_initialized)
11083 mono_marshal_unlock ();
11087 * mono_marshal_free_inflated_wrappers:
11089 * Free wrappers of the inflated method METHOD.
11093 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11095 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11096 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11098 return mono_metadata_signature_equal (pair->sig, sig);
11102 mono_marshal_free_inflated_wrappers (MonoMethod *method)
11104 MonoMethodSignature *sig = method->signature;
11106 g_assert (method->is_inflated);
11108 /* Ignore calls occuring late during cleanup. */
11109 if (!marshal_mutex_initialized)
11112 mono_marshal_lock ();
11114 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11115 * they could be shared with other methods ?
11119 * indexed by MonoMethodSignature
11121 /* FIXME: This could remove unrelated wrappers as well */
11122 if (sig && method->klass->image->delegate_begin_invoke_cache)
11123 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
11124 if (sig && method->klass->image->delegate_end_invoke_cache)
11125 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
11126 if (sig && method->klass->image->delegate_invoke_cache)
11127 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
11128 if (sig && method->klass->image->runtime_invoke_cache)
11129 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
11132 * indexed by SignatureMethodPair
11134 if (sig && method->klass->image->delegate_abstract_invoke_cache)
11135 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
11136 signature_method_pair_matches_signature, (gpointer)sig);
11139 * indexed by MonoMethod pointers
11141 if (method->klass->image->runtime_invoke_direct_cache)
11142 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
11143 if (method->klass->image->managed_wrapper_cache)
11144 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
11145 if (method->klass->image->native_wrapper_cache)
11146 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
11147 if (method->klass->image->remoting_invoke_cache)
11148 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
11149 if (method->klass->image->synchronized_cache)
11150 g_hash_table_remove (method->klass->image->synchronized_cache, method);
11151 if (method->klass->image->unbox_wrapper_cache)
11152 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
11153 if (method->klass->image->cominterop_invoke_cache)
11154 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
11155 if (method->klass->image->cominterop_wrapper_cache)
11156 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
11157 if (method->klass->image->thunk_invoke_cache)
11158 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
11159 if (method->klass->image->generic_array_helper_cache)
11160 g_hash_table_remove (method->klass->image->generic_array_helper_cache, method);
11162 mono_marshal_unlock ();