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)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/debug-helpers.h"
27 #include "mono/metadata/threadpool.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/metadata-internals.h"
31 #include "mono/metadata/domain-internals.h"
32 #include "mono/metadata/gc-internal.h"
33 #include "mono/metadata/threads-types.h"
34 #include "mono/metadata/string-icalls.h"
35 #include "mono/metadata/attrdefs.h"
36 #include "mono/metadata/gc-internal.h"
37 #include "mono/metadata/cominterop.h"
38 #include "mono/utils/mono-counters.h"
39 #include "mono/utils/mono-tls.h"
43 /* #define DEBUG_RUNTIME_CODE */
45 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
49 MONO_MARSHAL_NONE, /* No marshalling needed */
50 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
51 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
52 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
53 } MonoXDomainMarshalType;
56 #include "mono/cil/opcode.def"
61 struct _MonoRemotingMethods {
63 MonoMethod *invoke_with_check;
64 MonoMethod *xdomain_invoke;
65 MonoMethod *xdomain_dispatch;
68 typedef struct _MonoRemotingMethods MonoRemotingMethods;
71 * This mutex protects the various marshalling related caches in MonoImage
72 * and a few other data structures static to this file.
73 * Note that when this lock is held it is not possible to take other runtime
74 * locks like the loader lock.
76 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
77 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
78 static CRITICAL_SECTION marshal_mutex;
79 static gboolean marshal_mutex_initialized;
81 static MonoNativeTlsKey last_error_tls_id;
83 static MonoNativeTlsKey load_type_info_tls_id;
86 delegate_hash_table_add (MonoDelegate *d);
89 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
92 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
95 mono_struct_delete_old (MonoClass *klass, char *ptr);
98 mono_marshal_string_to_utf16 (MonoString *s);
101 mono_marshal_string_to_utf16_copy (MonoString *s);
104 mono_string_to_lpstr (MonoString *string_obj);
106 static MonoStringBuilder *
107 mono_string_utf8_to_builder2 (char *text);
109 static MonoStringBuilder *
110 mono_string_utf16_to_builder2 (gunichar2 *text);
113 mono_string_new_len_wrapper (const char *text, guint length);
116 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
119 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
122 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
124 static MonoAsyncResult *
125 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
128 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
131 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
134 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
137 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
140 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
142 static MonoReflectionType *
143 type_from_handle (MonoType *handle);
146 mono_marshal_set_last_error_windows (int error);
148 static void init_safe_handle (void);
150 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
151 static MonoMethod *sh_dangerous_add_ref;
152 static MonoMethod *sh_dangerous_release;
158 sh_dangerous_add_ref = mono_class_get_method_from_name (
159 mono_defaults.safehandle_class, "DangerousAddRef", 1);
160 sh_dangerous_release = mono_class_get_method_from_name (
161 mono_defaults.safehandle_class, "DangerousRelease", 0);
165 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
167 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
169 mono_register_jit_icall (func, name, sig, save);
172 static MonoMethodSignature*
173 signature_dup (MonoImage *image, MonoMethodSignature *sig)
175 MonoMethodSignature *res;
178 res = mono_metadata_signature_alloc (image, sig->param_count);
179 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
180 memcpy (res, sig, sigsize);
186 mono_signature_no_pinvoke (MonoMethod *method)
188 MonoMethodSignature *sig = mono_method_signature (method);
190 sig = signature_dup (method->klass->image, sig);
191 sig->pinvoke = FALSE;
198 mono_marshal_init (void)
200 static gboolean module_initialized = FALSE;
202 if (!module_initialized) {
203 module_initialized = TRUE;
204 InitializeCriticalSection (&marshal_mutex);
205 marshal_mutex_initialized = TRUE;
206 mono_native_tls_alloc (&last_error_tls_id, NULL);
207 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
209 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
210 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
211 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
212 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
213 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
214 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
215 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
216 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
217 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
218 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
219 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
220 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
221 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
222 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
223 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
224 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
225 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
226 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
227 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
228 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
229 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
230 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
231 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
232 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
233 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
234 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
235 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
236 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
237 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
238 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
239 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
240 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
241 register_icall (g_free, "g_free", "void ptr", FALSE);
242 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
243 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
244 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
245 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
246 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
247 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
248 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
249 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
250 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
251 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
252 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
253 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
254 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
255 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
256 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
257 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
259 mono_cominterop_init ();
264 mono_marshal_cleanup (void)
266 mono_cominterop_cleanup ();
268 mono_native_tls_free (load_type_info_tls_id);
269 mono_native_tls_free (last_error_tls_id);
270 DeleteCriticalSection (&marshal_mutex);
271 marshal_mutex_initialized = FALSE;
274 MonoClass *byte_array_class;
275 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
276 static MonoMethod *method_set_context, *method_get_context;
277 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
280 mono_remoting_marshal_init (void)
284 static gboolean module_initialized = FALSE;
286 if (!module_initialized) {
287 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
288 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
289 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
290 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
292 klass = mono_defaults.real_proxy_class;
293 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
295 klass = mono_defaults.exception_class;
296 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
298 klass = mono_defaults.thread_class;
299 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
301 klass = mono_defaults.appdomain_class;
302 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
303 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
305 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
306 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
308 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
309 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
311 module_initialized = TRUE;
316 mono_delegate_to_ftnptr (MonoDelegate *delegate)
318 MonoMethod *method, *wrapper;
320 uint32_t target_handle = 0;
325 if (delegate->delegate_trampoline)
326 return delegate->delegate_trampoline;
328 klass = ((MonoObject *)delegate)->vtable->klass;
329 g_assert (klass->delegate);
331 method = delegate->method;
333 if (mono_method_signature (method)->pinvoke) {
334 const char *exc_class, *exc_arg;
337 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
339 g_assert (exc_class);
340 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
345 if (delegate->target) {
346 /* Produce a location which can be embedded in JITted code */
347 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
350 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
352 delegate->delegate_trampoline = mono_compile_method (wrapper);
354 // Add the delegate to the delegate hash table
355 delegate_hash_table_add (delegate);
357 /* when the object is collected, collect the dynamic method, too */
358 mono_object_register_finalizer ((MonoObject*)delegate);
360 return delegate->delegate_trampoline;
364 * this hash table maps from a delegate trampoline object to a weak reference
365 * of the delegate. As an optimizations with a non-moving GC we store the
366 * object pointer itself, otherwise we use a GC handle.
368 static GHashTable *delegate_hash_table;
371 delegate_hash_table_new (void) {
372 return g_hash_table_new (NULL, NULL);
376 delegate_hash_table_remove (MonoDelegate *d)
378 #ifdef HAVE_MOVING_COLLECTOR
381 mono_marshal_lock ();
382 if (delegate_hash_table == NULL)
383 delegate_hash_table = delegate_hash_table_new ();
384 #ifdef HAVE_MOVING_COLLECTOR
385 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
387 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
388 mono_marshal_unlock ();
389 #ifdef HAVE_MOVING_COLLECTOR
390 mono_gchandle_free (gchandle);
395 delegate_hash_table_add (MonoDelegate *d)
397 #ifdef HAVE_MOVING_COLLECTOR
398 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
399 guint32 old_gchandle;
401 mono_marshal_lock ();
402 if (delegate_hash_table == NULL)
403 delegate_hash_table = delegate_hash_table_new ();
404 #ifdef HAVE_MOVING_COLLECTOR
405 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
406 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
408 mono_gchandle_free (old_gchandle);
410 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
412 mono_marshal_unlock ();
416 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
418 #ifdef HAVE_MOVING_COLLECTOR
426 mono_marshal_lock ();
427 if (delegate_hash_table == NULL)
428 delegate_hash_table = delegate_hash_table_new ();
430 #ifdef HAVE_MOVING_COLLECTOR
431 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
432 mono_marshal_unlock ();
434 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
438 d = g_hash_table_lookup (delegate_hash_table, ftn);
439 mono_marshal_unlock ();
442 /* This is a native function, so construct a delegate for it */
443 static MonoClass *UnmanagedFunctionPointerAttribute;
444 MonoMethodSignature *sig;
446 MonoMarshalSpec **mspecs;
447 MonoCustomAttrInfo *cinfo;
448 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
449 MonoMethod *invoke = mono_get_delegate_invoke (klass);
450 MonoMethodPInvoke piinfo;
453 memset (&piinfo, 0, sizeof (piinfo));
454 if (!UnmanagedFunctionPointerAttribute)
455 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
457 /* The attribute is only available in Net 2.0 */
458 if (UnmanagedFunctionPointerAttribute) {
460 * The pinvoke attributes are stored in a real custom attribute so we have to
463 cinfo = mono_custom_attrs_from_class (klass);
465 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
467 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
470 mono_custom_attrs_free (cinfo);
474 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
475 mono_method_get_marshal_info (invoke, mspecs);
476 /* Freed below so don't alloc from mempool */
477 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
480 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
482 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
484 mono_metadata_free_marshal_spec (mspecs [i]);
488 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
489 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
492 if (d->object.vtable->domain != mono_domain_get ())
493 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
499 mono_delegate_free_ftnptr (MonoDelegate *delegate)
504 delegate_hash_table_remove (delegate);
506 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
508 if (!delegate->target) {
509 /* The wrapper method is shared between delegates -> no need to free it */
516 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
519 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
521 /*the target gchandle is the first entry after size and the wrapper itself.*/
522 gchandle = GPOINTER_TO_UINT (method_data [2]);
525 mono_gchandle_free (gchandle);
527 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
532 mono_array_to_savearray (MonoArray *array)
537 g_assert_not_reached ();
542 mono_array_to_lparray (MonoArray *array)
544 gpointer *nativeArray = NULL;
545 int nativeArraySize = 0;
554 klass = array->obj.vtable->klass;
556 switch (klass->element_class->byval_arg.type) {
558 g_assert_not_reached ();
561 case MONO_TYPE_CLASS:
562 nativeArraySize = array->max_length;
563 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
564 for(i = 0; i < nativeArraySize; ++i)
565 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
569 case MONO_TYPE_BOOLEAN:
582 case MONO_TYPE_VALUETYPE:
586 case MONO_TYPE_GENERICINST:
587 case MONO_TYPE_OBJECT:
588 case MONO_TYPE_ARRAY:
589 case MONO_TYPE_SZARRAY:
590 case MONO_TYPE_STRING:
592 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
593 g_assert_not_reached ();
596 return array->vector;
600 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
611 klass = array->obj.vtable->klass;
613 switch (klass->element_class->byval_arg.type) {
614 case MONO_TYPE_CLASS:
615 for(i = 0; i < array->max_length; ++i)
616 mono_marshal_free_ccw(nativeArray[i]);
624 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
626 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
628 if (elclass == mono_defaults.byte_class) {
629 GError *error = NULL;
633 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
636 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
640 g_error_free (error);
643 g_assert_not_reached ();
647 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
649 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
651 if (elclass == mono_defaults.byte_class) {
653 GError *error = NULL;
655 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
657 MonoException *exc = mono_get_exception_argument ("string", error->message);
658 g_error_free (error);
659 mono_raise_exception (exc);
662 memcpy (native_arr, as, MIN (strlen (as), elnum));
665 g_assert_not_reached ();
670 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
672 GError *error = NULL;
682 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
684 if (items_written > mono_stringbuilder_capacity (sb))
685 items_written = mono_stringbuilder_capacity (sb);
688 if (! sb->str || sb->str == sb->cached_str) {
689 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
690 sb->cached_str = NULL;
693 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
694 sb->length = items_written;
696 g_error_free (error);
702 mono_string_utf8_to_builder2 (char *text)
705 MonoStringBuilder *sb;
706 static MonoClass *string_builder_class;
707 static MonoMethod *sb_ctor;
714 if (!string_builder_class) {
715 MonoMethodDesc *desc;
717 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
718 g_assert (string_builder_class);
719 desc = mono_method_desc_new (":.ctor(int)", FALSE);
720 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
722 mono_method_desc_free (desc);
727 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
730 mono_runtime_invoke (sb_ctor, sb, args, &exc);
733 mono_string_utf8_to_builder (sb, text);
739 * FIXME: This routine does not seem to do what it seems to do
740 * the @text is never copied into the string builder
743 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
750 g_assert (mono_string_chars (sb->str) == text);
752 for (len = 0; text [len] != 0; ++len)
759 mono_string_utf16_to_builder2 (gunichar2 *text)
762 MonoStringBuilder *sb;
763 static MonoClass *string_builder_class;
764 static MonoMethod *sb_ctor;
771 if (!string_builder_class) {
772 MonoMethodDesc *desc;
774 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
775 g_assert (string_builder_class);
776 desc = mono_method_desc_new (":.ctor(int)", FALSE);
777 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
779 mono_method_desc_free (desc);
782 for (len = 0; text [len] != 0; ++len)
785 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
788 mono_runtime_invoke (sb_ctor, sb, args, &exc);
792 memcpy (mono_string_chars (sb->str), text, len * 2);
798 * mono_string_builder_to_utf8:
799 * @sb: the string builder
801 * Converts to utf8 the contents of the MonoStringBuilder.
803 * Returns: a utf8 string with the contents of the StringBuilder.
805 * The return value must be released with g_free.
808 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
810 GError *error = NULL;
811 gchar *tmp, *res = NULL;
816 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
818 * The sb could have been allocated with the default capacity and be empty.
819 * we need to alloc a buffer of the default capacity in this case.
821 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
822 sb->cached_str = NULL;
825 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
827 g_error_free (error);
828 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
830 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
831 memcpy (res, tmp, sb->length + 1);
839 * mono_string_builder_to_utf16:
840 * @sb: the string builder
842 * Converts to utf16 the contents of the MonoStringBuilder.
844 * Returns: a utf16 string with the contents of the StringBuilder.
846 * The return value must not be freed.
849 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
857 * The stringbuilder might not have ownership of this string. If this is
858 * the case, we must duplicate the string, so that we don't munge immutable
861 if (sb->str == sb->cached_str) {
863 * The sb could have been allocated with the default capacity and be empty.
864 * we need to alloc a buffer of the default capacity in this case.
866 if (sb->str->length == 0)
867 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
869 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
870 sb->cached_str = NULL;
874 *(mono_string_chars (sb->str)) = '\0';
876 return mono_string_chars (sb->str);
880 mono_string_to_lpstr (MonoString *s)
885 GError *error = NULL;
891 as = CoTaskMemAlloc (1);
896 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
898 MonoException *exc = mono_get_exception_argument ("string", error->message);
899 g_error_free (error);
900 mono_raise_exception(exc);
903 as = CoTaskMemAlloc (len + 1);
904 memcpy (as, tmp, len + 1);
909 return mono_string_to_utf8 (s);
914 mono_string_to_ansibstr (MonoString *string_obj)
916 g_error ("UnmanagedMarshal.BStr is not implemented.");
921 * mono_string_to_byvalstr:
922 * @dst: Where to store the null-terminated utf8 decoded string.
923 * @src: the MonoString to copy.
924 * @size: the maximum number of bytes to copy.
926 * Copies the MonoString pointed to by @src as a utf8 string
927 * into @dst, it copies at most @size bytes into the destination.
930 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
935 g_assert (dst != NULL);
938 memset (dst, 0, size);
942 s = mono_string_to_utf8 (src);
943 len = MIN (size, strlen (s));
946 memcpy (dst, s, len);
951 * mono_string_to_byvalwstr:
952 * @dst: Where to store the null-terminated utf16 decoded string.
953 * @src: the MonoString to copy.
954 * @size: the maximum number of bytes to copy.
956 * Copies the MonoString pointed to by @src as a utf16 string into
957 * @dst, it copies at most @size bytes into the destination (including
958 * a terminating 16-bit zero terminator).
961 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
965 g_assert (dst != NULL);
969 memset (dst, 0, size * 2);
973 len = MIN (size, (mono_string_length (src)));
974 memcpy (dst, mono_string_chars (src), size * 2);
975 if (size <= mono_string_length (src))
977 *((gunichar2 *) dst + len) = 0;
981 mono_string_new_len_wrapper (const char *text, guint length)
983 return mono_string_new_len (mono_domain_get (), text, length);
987 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
990 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
991 mono_mb_emit_byte (mb, CEE_LDIND_I);
992 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
993 mono_mb_emit_byte (mb, CEE_ADD);
994 mono_mb_emit_byte (mb, CEE_LDIND_I);
995 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
996 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
997 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
998 pos = mono_mb_emit_branch (mb, branch_code);
1003 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1006 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1007 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1008 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1009 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1010 mono_mb_emit_icon (mb, -1);
1011 pos = mono_mb_emit_branch (mb, branch_code);
1016 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1018 static int offset = -1;
1022 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1024 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1025 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1026 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1027 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1028 mono_mb_emit_ldflda (mb, offset);
1029 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1030 mono_mb_emit_icon (mb, mask);
1031 mono_mb_emit_byte (mb, CEE_AND);
1032 mono_mb_emit_icon (mb, 0);
1033 return mono_mb_emit_branch (mb, branch_code);
1037 * mono_mb_emit_exception_marshal_directive:
1039 * This function assumes ownership of MSG, which should be malloc-ed.
1042 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1047 s = mono_image_strdup (mb->method->klass->image, msg);
1052 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1056 mono_type_to_ldind (MonoType *type)
1062 switch (type->type) {
1064 return CEE_LDIND_I1;
1066 case MONO_TYPE_BOOLEAN:
1067 return CEE_LDIND_U1;
1069 return CEE_LDIND_I2;
1071 case MONO_TYPE_CHAR:
1072 return CEE_LDIND_U2;
1074 return CEE_LDIND_I4;
1076 return CEE_LDIND_U4;
1080 case MONO_TYPE_FNPTR:
1082 case MONO_TYPE_CLASS:
1083 case MONO_TYPE_STRING:
1084 case MONO_TYPE_OBJECT:
1085 case MONO_TYPE_SZARRAY:
1086 case MONO_TYPE_ARRAY:
1087 return CEE_LDIND_REF;
1090 return CEE_LDIND_I8;
1092 return CEE_LDIND_R4;
1094 return CEE_LDIND_R8;
1095 case MONO_TYPE_VALUETYPE:
1096 if (type->data.klass->enumtype) {
1097 type = mono_class_enum_basetype (type->data.klass);
1101 case MONO_TYPE_TYPEDBYREF:
1103 case MONO_TYPE_GENERICINST:
1104 type = &type->data.generic_class->container_class->byval_arg;
1107 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1113 mono_type_to_stind (MonoType *type)
1119 switch (type->type) {
1122 case MONO_TYPE_BOOLEAN:
1123 return CEE_STIND_I1;
1126 case MONO_TYPE_CHAR:
1127 return CEE_STIND_I2;
1130 return CEE_STIND_I4;
1134 case MONO_TYPE_FNPTR:
1136 case MONO_TYPE_CLASS:
1137 case MONO_TYPE_STRING:
1138 case MONO_TYPE_OBJECT:
1139 case MONO_TYPE_SZARRAY:
1140 case MONO_TYPE_ARRAY:
1141 return CEE_STIND_REF;
1144 return CEE_STIND_I8;
1146 return CEE_STIND_R4;
1148 return CEE_STIND_R8;
1149 case MONO_TYPE_VALUETYPE:
1150 if (type->data.klass->enumtype) {
1151 type = mono_class_enum_basetype (type->data.klass);
1155 case MONO_TYPE_TYPEDBYREF:
1157 case MONO_TYPE_GENERICINST:
1158 type = &type->data.generic_class->container_class->byval_arg;
1161 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1167 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1170 case MONO_MARSHAL_CONV_BOOL_I4:
1171 mono_mb_emit_ldloc (mb, 1);
1172 mono_mb_emit_ldloc (mb, 0);
1173 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1174 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1175 mono_mb_emit_byte (mb, 3);
1176 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1177 mono_mb_emit_byte (mb, CEE_BR_S);
1178 mono_mb_emit_byte (mb, 1);
1179 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1180 mono_mb_emit_byte (mb, CEE_STIND_I1);
1182 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1183 mono_mb_emit_ldloc (mb, 1);
1184 mono_mb_emit_ldloc (mb, 0);
1185 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1186 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1187 mono_mb_emit_byte (mb, 3);
1188 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1189 mono_mb_emit_byte (mb, CEE_BR_S);
1190 mono_mb_emit_byte (mb, 1);
1191 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1192 mono_mb_emit_byte (mb, CEE_STIND_I1);
1194 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1195 MonoClass *eklass = NULL;
1198 if (type->type == MONO_TYPE_SZARRAY) {
1199 eklass = type->data.klass;
1201 g_assert_not_reached ();
1204 esize = mono_class_native_size (eklass, NULL);
1206 /* create a new array */
1207 mono_mb_emit_ldloc (mb, 1);
1208 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1209 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1210 mono_mb_emit_byte (mb, CEE_STIND_I);
1212 if (eklass->blittable) {
1213 /* copy the elements */
1214 mono_mb_emit_ldloc (mb, 1);
1215 mono_mb_emit_byte (mb, CEE_LDIND_I);
1216 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1217 mono_mb_emit_byte (mb, CEE_ADD);
1218 mono_mb_emit_ldloc (mb, 0);
1219 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1220 mono_mb_emit_byte (mb, CEE_PREFIX1);
1221 mono_mb_emit_byte (mb, CEE_CPBLK);
1224 int array_var, src_var, dst_var, index_var;
1225 guint32 label2, label3;
1227 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1228 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1229 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1232 mono_mb_emit_ldloc (mb, 1);
1233 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1234 mono_mb_emit_stloc (mb, array_var);
1236 /* save the old src pointer */
1237 mono_mb_emit_ldloc (mb, 0);
1238 mono_mb_emit_stloc (mb, src_var);
1239 /* save the old dst pointer */
1240 mono_mb_emit_ldloc (mb, 1);
1241 mono_mb_emit_stloc (mb, dst_var);
1243 /* Emit marshalling loop */
1244 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1245 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1246 mono_mb_emit_stloc (mb, index_var);
1249 label2 = mono_mb_get_label (mb);
1250 mono_mb_emit_ldloc (mb, index_var);
1251 mono_mb_emit_ldloc (mb, array_var);
1252 mono_mb_emit_byte (mb, CEE_LDLEN);
1253 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1255 /* src is already set */
1258 mono_mb_emit_ldloc (mb, array_var);
1259 mono_mb_emit_ldloc (mb, index_var);
1260 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1261 mono_mb_emit_stloc (mb, 1);
1263 /* Do the conversion */
1264 emit_struct_conv (mb, eklass, TRUE);
1267 mono_mb_emit_add_to_local (mb, index_var, 1);
1269 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1271 mono_mb_patch_branch (mb, label3);
1273 /* restore the old src pointer */
1274 mono_mb_emit_ldloc (mb, src_var);
1275 mono_mb_emit_stloc (mb, 0);
1276 /* restore the old dst pointer */
1277 mono_mb_emit_ldloc (mb, dst_var);
1278 mono_mb_emit_stloc (mb, 1);
1282 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1283 MonoClass *eclass = mono_defaults.char_class;
1285 /* create a new array */
1286 mono_mb_emit_ldloc (mb, 1);
1287 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1288 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1289 mono_mb_emit_byte (mb, CEE_STIND_REF);
1291 mono_mb_emit_ldloc (mb, 1);
1292 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1293 mono_mb_emit_ldloc (mb, 0);
1294 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1295 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1296 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1299 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1300 mono_mb_emit_ldloc (mb, 1);
1301 mono_mb_emit_ldloc (mb, 0);
1302 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1303 mono_mb_emit_byte (mb, CEE_STIND_REF);
1305 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1306 mono_mb_emit_ldloc (mb, 1);
1307 mono_mb_emit_ldloc (mb, 0);
1308 mono_mb_emit_icall (mb, mono_string_from_utf16);
1309 mono_mb_emit_byte (mb, CEE_STIND_REF);
1311 case MONO_MARSHAL_CONV_STR_LPTSTR:
1312 mono_mb_emit_ldloc (mb, 1);
1313 mono_mb_emit_ldloc (mb, 0);
1314 mono_mb_emit_byte (mb, CEE_LDIND_I);
1316 mono_mb_emit_icall (mb, mono_string_from_utf16);
1318 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1320 mono_mb_emit_byte (mb, CEE_STIND_REF);
1322 case MONO_MARSHAL_CONV_STR_LPSTR:
1323 mono_mb_emit_ldloc (mb, 1);
1324 mono_mb_emit_ldloc (mb, 0);
1325 mono_mb_emit_byte (mb, CEE_LDIND_I);
1326 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1327 mono_mb_emit_byte (mb, CEE_STIND_REF);
1329 case MONO_MARSHAL_CONV_STR_LPWSTR:
1330 mono_mb_emit_ldloc (mb, 1);
1331 mono_mb_emit_ldloc (mb, 0);
1332 mono_mb_emit_byte (mb, CEE_LDIND_I);
1333 mono_mb_emit_icall (mb, mono_string_from_utf16);
1334 mono_mb_emit_byte (mb, CEE_STIND_REF);
1336 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1337 MonoClass *klass = mono_class_from_mono_type (type);
1338 int src_var, dst_var;
1340 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1341 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1343 /* *dst = new object */
1344 mono_mb_emit_ldloc (mb, 1);
1345 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1346 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1347 mono_mb_emit_byte (mb, CEE_STIND_REF);
1349 /* save the old src pointer */
1350 mono_mb_emit_ldloc (mb, 0);
1351 mono_mb_emit_stloc (mb, src_var);
1352 /* save the old dst pointer */
1353 mono_mb_emit_ldloc (mb, 1);
1354 mono_mb_emit_stloc (mb, dst_var);
1356 /* dst = pointer to newly created object data */
1357 mono_mb_emit_ldloc (mb, 1);
1358 mono_mb_emit_byte (mb, CEE_LDIND_I);
1359 mono_mb_emit_icon (mb, sizeof (MonoObject));
1360 mono_mb_emit_byte (mb, CEE_ADD);
1361 mono_mb_emit_stloc (mb, 1);
1363 emit_struct_conv (mb, klass, TRUE);
1365 /* restore the old src pointer */
1366 mono_mb_emit_ldloc (mb, src_var);
1367 mono_mb_emit_stloc (mb, 0);
1368 /* restore the old dst pointer */
1369 mono_mb_emit_ldloc (mb, dst_var);
1370 mono_mb_emit_stloc (mb, 1);
1373 case MONO_MARSHAL_CONV_DEL_FTN: {
1374 MonoClass *klass = mono_class_from_mono_type (type);
1376 mono_mb_emit_ldloc (mb, 1);
1377 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1378 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1379 mono_mb_emit_ldloc (mb, 0);
1380 mono_mb_emit_byte (mb, CEE_LDIND_I);
1381 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1382 mono_mb_emit_byte (mb, CEE_STIND_REF);
1385 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1386 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1390 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1391 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1392 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1393 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1395 #endif /* DISABLE_COM */
1397 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1399 * Passing SafeHandles as ref does not allow the unmanaged code
1400 * to change the SafeHandle value. If the value is changed,
1401 * we should issue a diagnostic exception (NotSupportedException)
1402 * that informs the user that changes to handles in unmanaged code
1405 * Since we currently have no access to the original
1406 * SafeHandle that was used during the marshalling,
1407 * for now we just ignore this, and ignore/discard any
1408 * changes that might have happened to the handle.
1413 case MONO_MARSHAL_CONV_HANDLEREF: {
1415 * Passing HandleRefs in a struct that is ref()ed does not
1416 * copy the values back to the HandleRef
1421 case MONO_MARSHAL_CONV_STR_BSTR:
1422 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1423 case MONO_MARSHAL_CONV_STR_TBSTR:
1424 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1426 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1428 mono_mb_emit_exception_marshal_directive (mb, msg);
1435 conv_to_icall (MonoMarshalConv conv)
1438 case MONO_MARSHAL_CONV_STR_LPWSTR:
1439 return mono_marshal_string_to_utf16;
1440 case MONO_MARSHAL_CONV_LPWSTR_STR:
1441 return mono_string_from_utf16;
1442 case MONO_MARSHAL_CONV_LPTSTR_STR:
1444 return mono_string_from_utf16;
1446 return mono_string_new_wrapper;
1448 case MONO_MARSHAL_CONV_LPSTR_STR:
1449 return mono_string_new_wrapper;
1450 case MONO_MARSHAL_CONV_STR_LPTSTR:
1452 return mono_marshal_string_to_utf16;
1454 return mono_string_to_lpstr;
1456 case MONO_MARSHAL_CONV_STR_LPSTR:
1457 return mono_string_to_lpstr;
1458 case MONO_MARSHAL_CONV_STR_BSTR:
1459 return mono_string_to_bstr;
1460 case MONO_MARSHAL_CONV_BSTR_STR:
1461 return mono_string_from_bstr;
1462 case MONO_MARSHAL_CONV_STR_TBSTR:
1463 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1464 return mono_string_to_ansibstr;
1465 case MONO_MARSHAL_CONV_SB_LPSTR:
1466 return mono_string_builder_to_utf8;
1467 case MONO_MARSHAL_CONV_SB_LPTSTR:
1469 return mono_string_builder_to_utf16;
1471 return mono_string_builder_to_utf8;
1473 case MONO_MARSHAL_CONV_SB_LPWSTR:
1474 return mono_string_builder_to_utf16;
1475 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1476 return mono_array_to_savearray;
1477 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1478 return mono_array_to_lparray;
1479 case MONO_MARSHAL_FREE_LPARRAY:
1480 return mono_free_lparray;
1481 case MONO_MARSHAL_CONV_DEL_FTN:
1482 return mono_delegate_to_ftnptr;
1483 case MONO_MARSHAL_CONV_FTN_DEL:
1484 return mono_ftnptr_to_delegate;
1485 case MONO_MARSHAL_CONV_LPSTR_SB:
1486 return mono_string_utf8_to_builder;
1487 case MONO_MARSHAL_CONV_LPTSTR_SB:
1489 return mono_string_utf16_to_builder;
1491 return mono_string_utf8_to_builder;
1493 case MONO_MARSHAL_CONV_LPWSTR_SB:
1494 return mono_string_utf16_to_builder;
1495 case MONO_MARSHAL_FREE_ARRAY:
1496 return mono_marshal_free_array;
1497 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1498 return mono_string_to_byvalstr;
1499 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1500 return mono_string_to_byvalwstr;
1502 g_assert_not_reached ();
1509 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1514 case MONO_MARSHAL_CONV_BOOL_I4:
1515 mono_mb_emit_ldloc (mb, 1);
1516 mono_mb_emit_ldloc (mb, 0);
1517 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1518 mono_mb_emit_byte (mb, CEE_STIND_I4);
1520 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1521 mono_mb_emit_ldloc (mb, 1);
1522 mono_mb_emit_ldloc (mb, 0);
1523 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1524 mono_mb_emit_byte (mb, CEE_NEG);
1525 mono_mb_emit_byte (mb, CEE_STIND_I2);
1527 case MONO_MARSHAL_CONV_STR_LPWSTR:
1528 case MONO_MARSHAL_CONV_STR_LPSTR:
1529 case MONO_MARSHAL_CONV_STR_LPTSTR:
1530 case MONO_MARSHAL_CONV_STR_BSTR:
1531 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1532 case MONO_MARSHAL_CONV_STR_TBSTR: {
1535 /* free space if free == true */
1536 mono_mb_emit_ldloc (mb, 2);
1537 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1538 mono_mb_emit_ldloc (mb, 1);
1539 mono_mb_emit_byte (mb, CEE_LDIND_I);
1540 mono_mb_emit_icall (mb, g_free);
1541 mono_mb_patch_short_branch (mb, pos);
1543 mono_mb_emit_ldloc (mb, 1);
1544 mono_mb_emit_ldloc (mb, 0);
1545 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1546 mono_mb_emit_icall (mb, conv_to_icall (conv));
1547 mono_mb_emit_byte (mb, CEE_STIND_I);
1550 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1551 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1552 case MONO_MARSHAL_CONV_DEL_FTN:
1553 mono_mb_emit_ldloc (mb, 1);
1554 mono_mb_emit_ldloc (mb, 0);
1555 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1556 mono_mb_emit_icall (mb, conv_to_icall (conv));
1557 mono_mb_emit_byte (mb, CEE_STIND_I);
1559 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1560 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1563 mono_mb_emit_ldloc (mb, 1); /* dst */
1564 mono_mb_emit_ldloc (mb, 0);
1565 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1566 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1567 mono_mb_emit_icall (mb, conv_to_icall (conv));
1570 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1571 MonoClass *eklass = NULL;
1574 if (type->type == MONO_TYPE_SZARRAY) {
1575 eklass = type->data.klass;
1577 g_assert_not_reached ();
1580 if (eklass->valuetype)
1581 esize = mono_class_native_size (eklass, NULL);
1583 esize = sizeof (gpointer);
1585 mono_mb_emit_ldloc (mb, 0);
1586 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1587 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1589 if (eklass->blittable) {
1590 mono_mb_emit_ldloc (mb, 1);
1591 mono_mb_emit_ldloc (mb, 0);
1592 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1593 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1594 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1595 mono_mb_emit_byte (mb, CEE_PREFIX1);
1596 mono_mb_emit_byte (mb, CEE_CPBLK);
1598 int array_var, src_var, dst_var, index_var;
1599 guint32 label2, label3;
1601 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1602 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1603 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1606 mono_mb_emit_ldloc (mb, 0);
1607 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1608 mono_mb_emit_stloc (mb, array_var);
1610 /* save the old src pointer */
1611 mono_mb_emit_ldloc (mb, 0);
1612 mono_mb_emit_stloc (mb, src_var);
1613 /* save the old dst pointer */
1614 mono_mb_emit_ldloc (mb, 1);
1615 mono_mb_emit_stloc (mb, dst_var);
1617 /* Emit marshalling loop */
1618 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1619 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1620 mono_mb_emit_stloc (mb, index_var);
1623 label2 = mono_mb_get_label (mb);
1624 mono_mb_emit_ldloc (mb, index_var);
1625 mono_mb_emit_ldloc (mb, array_var);
1626 mono_mb_emit_byte (mb, CEE_LDLEN);
1627 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1630 mono_mb_emit_ldloc (mb, array_var);
1631 mono_mb_emit_ldloc (mb, index_var);
1632 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1633 mono_mb_emit_stloc (mb, 0);
1635 /* dst is already set */
1637 /* Do the conversion */
1638 emit_struct_conv (mb, eklass, FALSE);
1641 mono_mb_emit_add_to_local (mb, index_var, 1);
1643 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1645 mono_mb_patch_branch (mb, label3);
1647 /* restore the old src pointer */
1648 mono_mb_emit_ldloc (mb, src_var);
1649 mono_mb_emit_stloc (mb, 0);
1650 /* restore the old dst pointer */
1651 mono_mb_emit_ldloc (mb, dst_var);
1652 mono_mb_emit_stloc (mb, 1);
1655 mono_mb_patch_branch (mb, pos);
1658 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1659 mono_mb_emit_ldloc (mb, 0);
1660 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1661 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1663 mono_mb_emit_ldloc (mb, 1);
1664 mono_mb_emit_ldloc (mb, 0);
1665 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1666 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1667 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1668 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1669 mono_mb_patch_short_branch (mb, pos);
1672 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1673 int src_var, dst_var;
1675 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1676 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1678 mono_mb_emit_ldloc (mb, 0);
1679 mono_mb_emit_byte (mb, CEE_LDIND_I);
1680 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1682 /* save the old src pointer */
1683 mono_mb_emit_ldloc (mb, 0);
1684 mono_mb_emit_stloc (mb, src_var);
1685 /* save the old dst pointer */
1686 mono_mb_emit_ldloc (mb, 1);
1687 mono_mb_emit_stloc (mb, dst_var);
1689 /* src = pointer to object data */
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_I);
1692 mono_mb_emit_icon (mb, sizeof (MonoObject));
1693 mono_mb_emit_byte (mb, CEE_ADD);
1694 mono_mb_emit_stloc (mb, 0);
1696 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1698 /* restore the old src pointer */
1699 mono_mb_emit_ldloc (mb, src_var);
1700 mono_mb_emit_stloc (mb, 0);
1701 /* restore the old dst pointer */
1702 mono_mb_emit_ldloc (mb, dst_var);
1703 mono_mb_emit_stloc (mb, 1);
1705 mono_mb_patch_branch (mb, pos);
1710 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1711 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1712 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1713 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1715 #endif /* DISABLE_COM */
1717 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1718 int dar_release_slot, pos;
1720 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1723 * The following is ifdefed-out, because I have no way of doing the
1724 * DangerousRelease when destroying the structure
1727 /* set release = false */
1728 mono_mb_emit_icon (mb, 0);
1729 mono_mb_emit_stloc (mb, dar_release_slot);
1730 if (!sh_dangerous_add_ref)
1731 init_safe_handle ();
1733 /* safehandle.DangerousAddRef (ref release) */
1734 mono_mb_emit_ldloc (mb, 0); /* the source */
1735 mono_mb_emit_byte (mb, CEE_LDIND_I);
1736 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1737 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1739 mono_mb_emit_ldloc (mb, 0);
1740 mono_mb_emit_byte (mb, CEE_LDIND_I);
1741 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1742 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1743 mono_mb_patch_branch (mb, pos);
1745 /* Pull the handle field from SafeHandle */
1746 mono_mb_emit_ldloc (mb, 1);
1747 mono_mb_emit_ldloc (mb, 0);
1748 mono_mb_emit_byte (mb, CEE_LDIND_I);
1749 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1750 mono_mb_emit_byte (mb, CEE_LDIND_I);
1751 mono_mb_emit_byte (mb, CEE_STIND_I);
1755 case MONO_MARSHAL_CONV_HANDLEREF: {
1756 mono_mb_emit_ldloc (mb, 1);
1757 mono_mb_emit_ldloc (mb, 0);
1758 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1759 mono_mb_emit_byte (mb, CEE_ADD);
1760 mono_mb_emit_byte (mb, CEE_LDIND_I);
1761 mono_mb_emit_byte (mb, CEE_STIND_I);
1766 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1767 MonoException *exc = mono_get_exception_not_implemented (msg);
1768 g_warning ("%s", msg);
1770 mono_raise_exception (exc);
1776 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1777 MonoMarshalNative string_encoding)
1779 MonoMarshalType *info;
1783 emit_struct_conv(mb, klass->parent, to_object);
1785 info = mono_marshal_load_type_info (klass);
1787 if (info->native_size == 0)
1790 if (klass->blittable) {
1791 int msize = mono_class_value_size (klass, NULL);
1792 g_assert (msize == info->native_size);
1793 mono_mb_emit_ldloc (mb, 1);
1794 mono_mb_emit_ldloc (mb, 0);
1795 mono_mb_emit_icon (mb, msize);
1796 mono_mb_emit_byte (mb, CEE_PREFIX1);
1797 mono_mb_emit_byte (mb, CEE_CPBLK);
1799 mono_mb_emit_add_to_local (mb, 0, msize);
1800 mono_mb_emit_add_to_local (mb, 1, msize);
1804 if (klass != mono_defaults.safehandle_class) {
1805 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1806 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1807 mono_type_full_name (&klass->byval_arg));
1808 mono_mb_emit_exception_marshal_directive (mb, msg);
1813 for (i = 0; i < info->num_fields; i++) {
1814 MonoMarshalNative ntype;
1815 MonoMarshalConv conv;
1816 MonoType *ftype = info->fields [i].field->type;
1819 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1821 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1824 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1827 msize = klass->instance_size - info->fields [i].field->offset;
1828 usize = info->native_size - info->fields [i].offset;
1830 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1831 usize = info->fields [i + 1].offset - info->fields [i].offset;
1834 if (klass != mono_defaults.safehandle_class){
1836 * FIXME: Should really check for usize==0 and msize>0, but we apply
1837 * the layout to the managed structure as well.
1840 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1841 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1842 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1843 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1844 "reference field at the same offset as another field.",
1845 mono_type_full_name (&klass->byval_arg));
1850 case MONO_MARSHAL_CONV_NONE: {
1853 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1854 ftype->type == MONO_TYPE_U) {
1855 mono_mb_emit_ldloc (mb, 1);
1856 mono_mb_emit_ldloc (mb, 0);
1857 mono_mb_emit_byte (mb, CEE_LDIND_I);
1858 mono_mb_emit_byte (mb, CEE_STIND_I);
1869 case MONO_TYPE_BOOLEAN:
1872 case MONO_TYPE_CHAR:
1878 mono_mb_emit_ldloc (mb, 1);
1879 mono_mb_emit_ldloc (mb, 0);
1880 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1882 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1883 mono_mb_emit_byte (mb, CEE_STIND_I2);
1885 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1886 mono_mb_emit_byte (mb, CEE_STIND_I1);
1889 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1890 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1893 case MONO_TYPE_VALUETYPE: {
1894 int src_var, dst_var;
1896 if (ftype->data.klass->enumtype) {
1897 ftype = mono_class_enum_basetype (ftype->data.klass);
1901 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1902 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1904 /* save the old src pointer */
1905 mono_mb_emit_ldloc (mb, 0);
1906 mono_mb_emit_stloc (mb, src_var);
1907 /* save the old dst pointer */
1908 mono_mb_emit_ldloc (mb, 1);
1909 mono_mb_emit_stloc (mb, dst_var);
1911 emit_struct_conv (mb, ftype->data.klass, to_object);
1913 /* restore the old src pointer */
1914 mono_mb_emit_ldloc (mb, src_var);
1915 mono_mb_emit_stloc (mb, 0);
1916 /* restore the old dst pointer */
1917 mono_mb_emit_ldloc (mb, dst_var);
1918 mono_mb_emit_stloc (mb, 1);
1921 case MONO_TYPE_OBJECT: {
1922 mono_init_com_types ();
1924 static MonoMethod *variant_clear = NULL;
1925 static MonoMethod *get_object_for_native_variant = NULL;
1928 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1929 if (!get_object_for_native_variant)
1930 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1931 mono_mb_emit_ldloc (mb, 1);
1932 mono_mb_emit_ldloc (mb, 0);
1933 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1934 mono_mb_emit_byte (mb, CEE_STIND_REF);
1936 mono_mb_emit_ldloc (mb, 0);
1937 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1940 static MonoMethod *get_native_variant_for_object = NULL;
1942 if (!get_native_variant_for_object)
1943 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1945 mono_mb_emit_ldloc (mb, 0);
1946 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1947 mono_mb_emit_ldloc (mb, 1);
1948 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1954 g_warning ("marshaling type %02x not implemented", ftype->type);
1955 g_assert_not_reached ();
1960 int src_var, dst_var;
1962 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1963 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1965 /* save the old src pointer */
1966 mono_mb_emit_ldloc (mb, 0);
1967 mono_mb_emit_stloc (mb, src_var);
1968 /* save the old dst pointer */
1969 mono_mb_emit_ldloc (mb, 1);
1970 mono_mb_emit_stloc (mb, dst_var);
1973 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1975 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1977 /* restore the old src pointer */
1978 mono_mb_emit_ldloc (mb, src_var);
1979 mono_mb_emit_stloc (mb, 0);
1980 /* restore the old dst pointer */
1981 mono_mb_emit_ldloc (mb, dst_var);
1982 mono_mb_emit_stloc (mb, 1);
1987 mono_mb_emit_add_to_local (mb, 0, usize);
1988 mono_mb_emit_add_to_local (mb, 1, msize);
1990 mono_mb_emit_add_to_local (mb, 0, msize);
1991 mono_mb_emit_add_to_local (mb, 1, usize);
1997 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1999 emit_struct_conv_full (mb, klass, to_object, -1);
2003 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2005 /* Call DestroyStructure */
2006 /* FIXME: Only do this if needed */
2007 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2008 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2009 mono_mb_emit_ldloc (mb, struct_var);
2010 mono_mb_emit_icall (mb, mono_struct_delete_old);
2014 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2018 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2019 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2020 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2022 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2023 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2025 mono_mb_emit_icall (mb, checkpoint_func);
2027 mono_mb_patch_branch (mb, pos_noabort);
2031 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2033 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2036 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2040 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2042 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2046 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2048 emit_thread_interrupt_checkpoint (mb);
2051 static MonoAsyncResult *
2052 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2054 MonoMethodMessage *msg;
2055 MonoDelegate *async_callback;
2056 MonoMulticastDelegate *mcast_delegate;
2060 MonoMethod *method = NULL, *method2 = NULL;
2062 g_assert (delegate);
2063 mcast_delegate = (MonoMulticastDelegate *) delegate;
2064 if (mcast_delegate->prev != NULL)
2065 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2067 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2069 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2070 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2072 /* If the target is a proxy, make a direct call. Is proxy's work
2073 // to make the call asynchronous.
2075 MonoAsyncResult *ares;
2077 MonoArray *out_args;
2078 method = delegate->method;
2080 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2081 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2082 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2083 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2084 MONO_OBJECT_SETREF (msg, async_result, ares);
2085 msg->call_type = CallType_BeginInvoke;
2088 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2090 mono_raise_exception ((MonoException *) exc);
2095 klass = delegate->object.vtable->klass;
2097 method = mono_get_delegate_invoke (klass);
2098 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2101 g_assert (method != NULL);
2103 im = mono_get_delegate_invoke (method->klass);
2104 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2106 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2110 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2112 int i, params_var, tmp_var;
2114 /* allocate local (pointer) *params[] */
2115 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2116 /* allocate local (pointer) tmp */
2117 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2119 /* alloate space on stack to store an array of pointers to the arguments */
2120 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2121 mono_mb_emit_byte (mb, CEE_PREFIX1);
2122 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2123 mono_mb_emit_stloc (mb, params_var);
2126 mono_mb_emit_ldloc (mb, params_var);
2127 mono_mb_emit_stloc (mb, tmp_var);
2129 if (save_this && sig->hasthis) {
2130 mono_mb_emit_ldloc (mb, tmp_var);
2131 mono_mb_emit_ldarg_addr (mb, 0);
2132 mono_mb_emit_byte (mb, CEE_STIND_I);
2133 /* tmp = tmp + sizeof (gpointer) */
2134 if (sig->param_count)
2135 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2139 for (i = 0; i < sig->param_count; i++) {
2140 mono_mb_emit_ldloc (mb, tmp_var);
2141 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2142 mono_mb_emit_byte (mb, CEE_STIND_I);
2143 /* tmp = tmp + sizeof (gpointer) */
2144 if (i < (sig->param_count - 1))
2145 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2152 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2156 GString *res = g_string_new ("");
2159 g_string_append (res, prefix);
2160 g_string_append_c (res, '_');
2163 mono_type_get_desc (res, sig->ret, FALSE);
2166 g_string_append (res, "__this__");
2168 for (i = 0; i < sig->param_count; ++i) {
2169 g_string_append_c (res, '_');
2170 mono_type_get_desc (res, sig->params [i], FALSE);
2173 g_string_free (res, FALSE);
2178 * mono_marshal_get_string_encoding:
2180 * Return the string encoding which should be used for a given parameter.
2182 static MonoMarshalNative
2183 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2185 /* First try the parameter marshal info */
2187 if (spec->native == MONO_NATIVE_LPARRAY) {
2188 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2189 return spec->data.array_data.elem_type;
2192 return spec->native;
2196 return MONO_NATIVE_LPSTR;
2198 /* Then try the method level marshal info */
2199 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2200 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2201 return MONO_NATIVE_LPSTR;
2202 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2203 return MONO_NATIVE_LPWSTR;
2204 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2206 return MONO_NATIVE_LPWSTR;
2208 return MONO_NATIVE_LPSTR;
2211 return MONO_NATIVE_LPSTR;
2215 static MonoMarshalConv
2216 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2218 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2221 case MONO_NATIVE_LPWSTR:
2222 return MONO_MARSHAL_CONV_STR_LPWSTR;
2223 case MONO_NATIVE_LPSTR:
2224 case MONO_NATIVE_VBBYREFSTR:
2225 return MONO_MARSHAL_CONV_STR_LPSTR;
2226 case MONO_NATIVE_LPTSTR:
2227 return MONO_MARSHAL_CONV_STR_LPTSTR;
2228 case MONO_NATIVE_BSTR:
2229 return MONO_MARSHAL_CONV_STR_BSTR;
2235 static MonoMarshalConv
2236 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2238 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2241 case MONO_NATIVE_LPWSTR:
2242 return MONO_MARSHAL_CONV_SB_LPWSTR;
2244 case MONO_NATIVE_LPSTR:
2245 return MONO_MARSHAL_CONV_SB_LPSTR;
2247 case MONO_NATIVE_LPTSTR:
2248 return MONO_MARSHAL_CONV_SB_LPTSTR;
2255 static MonoMarshalConv
2256 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2258 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2263 case MONO_NATIVE_LPWSTR:
2265 return MONO_MARSHAL_CONV_LPWSTR_STR;
2266 case MONO_NATIVE_LPSTR:
2267 case MONO_NATIVE_VBBYREFSTR:
2268 return MONO_MARSHAL_CONV_LPSTR_STR;
2269 case MONO_NATIVE_LPTSTR:
2270 return MONO_MARSHAL_CONV_LPTSTR_STR;
2271 case MONO_NATIVE_BSTR:
2272 return MONO_MARSHAL_CONV_BSTR_STR;
2278 static MonoMarshalConv
2279 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2281 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2286 case MONO_NATIVE_LPWSTR:
2288 * mono_string_builder_to_utf16 does not allocate a
2289 * new buffer, so no need to free it.
2292 return MONO_MARSHAL_CONV_LPWSTR_SB;
2293 case MONO_NATIVE_LPSTR:
2294 return MONO_MARSHAL_CONV_LPSTR_SB;
2296 case MONO_NATIVE_LPTSTR:
2297 return MONO_MARSHAL_CONV_LPTSTR_SB;
2305 * Return whenever a field of a native structure or an array member needs to
2309 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2311 MonoMarshalNative encoding;
2312 MonoMarshalConv conv;
2315 case MONO_TYPE_VALUETYPE:
2316 /* FIXME: Optimize this */
2318 case MONO_TYPE_OBJECT:
2319 case MONO_TYPE_CLASS:
2320 if (t->data.klass == mono_defaults.stringbuilder_class) {
2322 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2326 case MONO_TYPE_STRING:
2327 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2328 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2335 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2338 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2341 mono_marshal_lock ();
2344 g_hash_table_new (hash_func, equal_func);
2345 mono_memory_barrier ();
2348 mono_marshal_unlock ();
2354 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2357 mono_marshal_lock ();
2360 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2361 mono_memory_barrier ();
2364 mono_marshal_unlock ();
2370 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2372 return get_cache (var, hash_func, equal_func);
2376 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2380 mono_marshal_lock ();
2381 res = g_hash_table_lookup (cache, key);
2382 mono_marshal_unlock ();
2386 /* Create the method from the builder and place it in the cache */
2388 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2389 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2394 mono_marshal_lock ();
2395 res = g_hash_table_lookup (cache, key);
2396 mono_marshal_unlock ();
2399 newm = mono_mb_create_method (mb, sig, max_stack);
2400 mono_marshal_lock ();
2401 res = g_hash_table_lookup (cache, key);
2404 g_hash_table_insert (cache, key, res);
2405 mono_marshal_set_wrapper_info (res, key);
2406 mono_marshal_unlock ();
2408 mono_marshal_unlock ();
2409 mono_free_method (newm);
2417 static inline MonoMethod*
2418 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2420 MonoMethod *res = NULL;
2421 MonoRemotingMethods *wrps;
2423 mono_marshal_lock ();
2424 if (method->klass->image->remoting_invoke_cache)
2425 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2430 switch (wrapper_type) {
2431 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2432 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2433 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2434 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2438 /* it is important to do the unlock after the load from wrps, since in
2439 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2440 * to take the loader lock and some other thread may set the fields.
2442 mono_marshal_unlock ();
2446 /* Create the method from the builder and place it in the cache */
2447 static inline MonoMethod*
2448 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2449 MonoMethodSignature *sig, int max_stack)
2451 MonoMethod **res = NULL;
2452 MonoRemotingMethods *wrps;
2453 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2455 mono_marshal_lock ();
2456 wrps = g_hash_table_lookup (cache, key);
2458 wrps = g_new0 (MonoRemotingMethods, 1);
2459 g_hash_table_insert (cache, key, wrps);
2462 switch (mb->method->wrapper_type) {
2463 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2464 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2465 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2466 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2467 default: g_assert_not_reached (); break;
2469 mono_marshal_unlock ();
2473 newm = mono_mb_create_method (mb, sig, max_stack);
2475 mono_marshal_lock ();
2478 mono_marshal_set_wrapper_info (*res, key);
2479 mono_marshal_unlock ();
2481 mono_marshal_unlock ();
2482 mono_free_method (newm);
2490 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2493 int wrapper_type = wrapper->wrapper_type;
2495 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2498 switch (wrapper_type) {
2499 case MONO_WRAPPER_REMOTING_INVOKE:
2500 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2501 case MONO_WRAPPER_XDOMAIN_INVOKE:
2502 case MONO_WRAPPER_SYNCHRONIZED:
2503 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2504 case MONO_WRAPPER_RUNTIME_INVOKE:
2505 res = mono_method_get_wrapper_data (wrapper, 1);
2515 * mono_marshal_get_wrapper_info:
2517 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2520 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2522 g_assert (wrapper->wrapper_type);
2524 return mono_method_get_wrapper_data (wrapper, 1);
2528 * mono_marshal_set_wrapper_info:
2530 * Store an arbitrary pointer inside the wrapper which is retrievable by
2531 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2532 * wrapper (method->wrapper_type).
2535 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2539 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2542 datav = ((MonoMethodWrapper *)method)->method_data;
2547 * get_wrapper_target_class:
2549 * Return the class where a wrapper method should be placed.
2552 get_wrapper_target_class (MonoImage *image)
2558 * - can't put all wrappers into an mscorlib class, because they reference
2559 * metadata (signature) so they should be put into the same image as the
2560 * method they wrap, so they are unloaded together.
2561 * - putting them into a class with a type initalizer could cause the
2562 * initializer to be executed which can be a problem if the wrappers are
2564 * - putting them into an inflated class can cause problems if the the
2565 * class is deleted because it references an image which is unloaded.
2566 * To avoid these problems, we put the wrappers into the <Module> class of
2570 klass = ((MonoDynamicImage*)image)->wrappers_type;
2572 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2579 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2581 MonoMethodSignature *sig;
2582 MonoMethodBuilder *mb;
2588 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2589 !strcmp (method->name, "BeginInvoke"));
2591 sig = mono_signature_no_pinvoke (method);
2593 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2594 (GHashFunc)mono_signature_hash,
2595 (GCompareFunc)mono_metadata_signature_equal);
2596 if ((res = mono_marshal_find_in_cache (cache, sig)))
2599 g_assert (sig->hasthis);
2601 name = mono_signature_to_name (sig, "begin_invoke");
2602 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2605 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2607 mono_mb_emit_ldarg (mb, 0);
2608 mono_mb_emit_ldloc (mb, params_var);
2609 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2610 mono_mb_emit_byte (mb, CEE_RET);
2612 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2618 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2620 MonoDomain *domain = mono_domain_get ();
2621 MonoAsyncResult *ares;
2622 MonoMethod *method = NULL;
2623 MonoMethodSignature *sig;
2624 MonoMethodMessage *msg;
2625 MonoObject *res, *exc;
2626 MonoArray *out_args;
2629 g_assert (delegate);
2631 if (!delegate->method_info) {
2632 g_assert (delegate->method);
2633 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2636 if (!delegate->method_info || !delegate->method_info->method)
2637 g_assert_not_reached ();
2639 klass = delegate->object.vtable->klass;
2641 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2642 g_assert (method != NULL);
2644 sig = mono_signature_no_pinvoke (method);
2646 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2648 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2650 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."));
2654 if (ares->async_delegate != (MonoObject*)delegate) {
2655 mono_raise_exception (mono_get_exception_invalid_operation (
2656 "The IAsyncResult object provided does not match this delegate."));
2660 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2661 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2662 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2663 mono_message_init (domain, msg, delegate->method_info, NULL);
2664 msg->call_type = CallType_EndInvoke;
2665 MONO_OBJECT_SETREF (msg, async_result, ares);
2666 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2668 res = mono_thread_pool_finish (ares, &out_args, &exc);
2672 if (((MonoException*)exc)->stack_trace) {
2673 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2675 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2677 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2680 mono_raise_exception ((MonoException*)exc);
2683 mono_method_return_message_restore (method, params, out_args);
2688 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2690 MonoType *t = mono_type_get_underlying_type (return_type);
2692 if (return_type->byref)
2693 return_type = &mono_defaults.int_class->byval_arg;
2696 case MONO_TYPE_VOID:
2697 g_assert_not_reached ();
2700 case MONO_TYPE_STRING:
2701 case MONO_TYPE_CLASS:
2702 case MONO_TYPE_OBJECT:
2703 case MONO_TYPE_ARRAY:
2704 case MONO_TYPE_SZARRAY:
2708 case MONO_TYPE_BOOLEAN:
2711 case MONO_TYPE_CHAR:
2721 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2722 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2724 case MONO_TYPE_GENERICINST:
2725 if (!mono_type_generic_inst_is_valuetype (t))
2728 case MONO_TYPE_VALUETYPE: {
2729 MonoClass *klass = mono_class_from_mono_type (return_type);
2730 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2731 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2735 g_warning ("type 0x%x not handled", return_type->type);
2736 g_assert_not_reached ();
2739 mono_mb_emit_byte (mb, CEE_RET);
2743 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2745 MonoMethodSignature *sig;
2746 MonoMethodBuilder *mb;
2752 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2753 !strcmp (method->name, "EndInvoke"));
2755 sig = mono_signature_no_pinvoke (method);
2757 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2758 (GHashFunc)mono_signature_hash,
2759 (GCompareFunc)mono_metadata_signature_equal);
2760 if ((res = mono_marshal_find_in_cache (cache, sig)))
2763 g_assert (sig->hasthis);
2765 name = mono_signature_to_name (sig, "end_invoke");
2766 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2769 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2771 mono_mb_emit_ldarg (mb, 0);
2772 mono_mb_emit_ldloc (mb, params_var);
2773 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2775 if (sig->ret->type == MONO_TYPE_VOID) {
2776 mono_mb_emit_byte (mb, CEE_POP);
2777 mono_mb_emit_byte (mb, CEE_RET);
2779 mono_mb_emit_restore_result (mb, sig->ret);
2781 res = mono_mb_create_and_cache (cache, sig,
2782 mb, sig, sig->param_count + 16);
2789 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2791 MonoMethodMessage *msg;
2792 MonoTransparentProxy *this;
2793 MonoObject *res, *exc;
2794 MonoArray *out_args;
2796 this = *((MonoTransparentProxy **)params [0]);
2799 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2801 /* skip the this pointer */
2804 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2807 MonoMethodSignature *sig = mono_method_signature (method);
2808 int count = sig->param_count;
2809 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2811 for (i=0; i<count; i++) {
2812 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2813 if (class->valuetype) {
2814 if (sig->params [i]->byref) {
2815 mparams[i] = *((gpointer *)params [i]);
2817 /* runtime_invoke expects a boxed instance */
2818 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2819 mparams[i] = mono_nullable_box (params [i], class);
2821 mparams[i] = params [i];
2824 mparams[i] = *((gpointer**)params [i]);
2828 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2831 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2833 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2836 mono_raise_exception ((MonoException *)exc);
2838 mono_method_return_message_restore (method, params, out_args);
2844 mono_marshal_get_remoting_invoke (MonoMethod *method)
2846 MonoMethodSignature *sig;
2847 MonoMethodBuilder *mb;
2853 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2856 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2857 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2858 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2859 g_assert (vtable); /*FIXME do proper error handling*/
2861 if (!vtable->remote) {
2863 return mono_cominterop_get_invoke (method);
2865 g_assert_not_reached ();
2870 sig = mono_signature_no_pinvoke (method);
2872 /* we cant remote methods without this pointer */
2876 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2879 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2880 mb->method->save_lmf = 1;
2882 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2884 mono_mb_emit_ptr (mb, method);
2885 mono_mb_emit_ldloc (mb, params_var);
2886 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2887 emit_thread_interrupt_checkpoint (mb);
2889 if (sig->ret->type == MONO_TYPE_VOID) {
2890 mono_mb_emit_byte (mb, CEE_POP);
2891 mono_mb_emit_byte (mb, CEE_RET);
2893 mono_mb_emit_restore_result (mb, sig->ret);
2896 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2902 /* mono_get_xdomain_marshal_type()
2903 * Returns the kind of marshalling that a type needs for cross domain calls.
2905 static MonoXDomainMarshalType
2906 mono_get_xdomain_marshal_type (MonoType *t)
2909 case MONO_TYPE_VOID:
2910 g_assert_not_reached ();
2914 case MONO_TYPE_BOOLEAN:
2917 case MONO_TYPE_CHAR:
2924 return MONO_MARSHAL_NONE;
2925 case MONO_TYPE_STRING:
2926 return MONO_MARSHAL_COPY;
2927 case MONO_TYPE_ARRAY:
2928 case MONO_TYPE_SZARRAY: {
2929 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2930 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2931 return MONO_MARSHAL_COPY;
2936 return MONO_MARSHAL_SERIALIZE;
2940 /* mono_marshal_xdomain_copy_value
2941 * Makes a copy of "val" suitable for the current domain.
2944 mono_marshal_xdomain_copy_value (MonoObject *val)
2947 if (val == NULL) return NULL;
2949 domain = mono_domain_get ();
2951 switch (mono_object_class (val)->byval_arg.type) {
2952 case MONO_TYPE_VOID:
2953 g_assert_not_reached ();
2957 case MONO_TYPE_BOOLEAN:
2960 case MONO_TYPE_CHAR:
2966 case MONO_TYPE_R8: {
2967 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2969 case MONO_TYPE_STRING: {
2970 MonoString *str = (MonoString *) val;
2971 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2973 case MONO_TYPE_ARRAY:
2974 case MONO_TYPE_SZARRAY: {
2976 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2977 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2978 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2979 if (mt == MONO_MARSHAL_COPY) {
2980 int i, len = mono_array_length (acopy);
2981 for (i = 0; i < len; i++) {
2982 MonoObject *item = mono_array_get (acopy, gpointer, i);
2983 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2986 return (MonoObject *) acopy;
2990 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2991 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2992 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2993 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2994 newsb->length = oldsb->length;
2995 newsb->max_capacity = (gint32)0x7fffffff;
2996 return (MonoObject *) newsb;
3001 /* mono_marshal_xdomain_copy_out_value()
3002 * Copies the contents of the src instance into the dst instance. src and dst
3003 * must have the same type, and if they are arrays, the same size.
3006 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3008 if (src == NULL || dst == NULL) return;
3010 g_assert (mono_object_class (src) == mono_object_class (dst));
3012 switch (mono_object_class (src)->byval_arg.type) {
3013 case MONO_TYPE_ARRAY:
3014 case MONO_TYPE_SZARRAY: {
3015 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3016 if (mt == MONO_MARSHAL_SERIALIZE) return;
3017 if (mt == MONO_MARSHAL_COPY) {
3018 int i, len = mono_array_length ((MonoArray *)dst);
3019 for (i = 0; i < len; i++) {
3020 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3021 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3024 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3030 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3031 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3032 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3034 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)));
3035 dst_sb->cached_str = NULL;
3036 dst_sb->length = src_sb->length;
3041 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3043 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3044 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3048 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3050 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3053 /* mono_marshal_supports_fast_xdomain()
3054 * Returns TRUE if the method can use the fast xdomain wrapper.
3057 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3059 return !method->klass->contextbound &&
3060 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3064 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3066 MonoDomain *current_domain = mono_domain_get ();
3067 MonoDomain *domain = mono_domain_get_by_id (id);
3069 if (!domain || !mono_domain_set (domain, FALSE))
3070 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3073 mono_thread_push_appdomain_ref (domain);
3075 mono_thread_pop_appdomain_ref ();
3077 return current_domain->domain_id;
3081 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3083 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3086 /* mono_marshal_emit_load_domain_method ()
3087 * Loads into the stack a pointer to the code of the provided method for
3088 * the current domain.
3091 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3093 /* We need a pointer to the method for the running domain (not the domain
3094 * that compiles the method).
3096 mono_mb_emit_ptr (mb, method);
3097 mono_mb_emit_icall (mb, mono_compile_method);
3100 /* mono_marshal_check_domain_image ()
3101 * Returns TRUE if the image is loaded in the specified
3102 * application domain.
3105 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3110 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3114 mono_domain_assemblies_lock (domain);
3115 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3117 if (ass->image == image)
3120 mono_domain_assemblies_unlock (domain);
3125 /* mono_marshal_get_xappdomain_dispatch ()
3126 * Generates a method that dispatches a method call from another domain into
3127 * the current domain.
3130 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3132 MonoMethodSignature *sig, *csig;
3133 MonoMethodBuilder *mb;
3135 int i, j, param_index, copy_locals_base;
3136 MonoClass *ret_class = NULL;
3137 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3138 MonoExceptionClause *main_clause;
3140 gboolean copy_return;
3142 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3145 sig = mono_method_signature (method);
3146 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3149 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3150 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3151 csig->params [j++] = &byte_array_class->this_arg;
3152 csig->params [j++] = &byte_array_class->this_arg;
3153 for (i = 0; i < sig->param_count; i++) {
3154 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3155 csig->params [j++] = sig->params [i];
3158 csig->ret = sig->ret;
3160 csig->ret = &mono_defaults.void_class->byval_arg;
3162 csig->hasthis = FALSE;
3164 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3165 mb->method->save_lmf = 1;
3169 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3170 if (complex_count > 0)
3171 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3172 if (sig->ret->type != MONO_TYPE_VOID) {
3173 loc_return = mono_mb_add_local (mb, sig->ret);
3174 ret_class = mono_class_from_mono_type (sig->ret);
3179 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3180 main_clause->try_offset = mono_mb_get_label (mb);
3182 /* Clean the call context */
3184 mono_mb_emit_byte (mb, CEE_LDNULL);
3185 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3186 mono_mb_emit_byte (mb, CEE_POP);
3188 /* Deserialize call data */
3190 mono_mb_emit_ldarg (mb, 1);
3191 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3192 mono_mb_emit_byte (mb, CEE_DUP);
3193 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3195 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3196 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3198 if (complex_count > 0)
3199 mono_mb_emit_stloc (mb, loc_array);
3201 mono_mb_emit_byte (mb, CEE_POP);
3203 mono_mb_patch_short_branch (mb, pos);
3205 /* Get the target object */
3207 mono_mb_emit_ldarg (mb, 0);
3208 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3210 /* Load the arguments */
3212 copy_locals_base = mb->locals;
3213 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3215 for (i = 0; i < sig->param_count; i++) {
3216 MonoType *pt = sig->params [i];
3217 MonoClass *pclass = mono_class_from_mono_type (pt);
3218 switch (marshal_types [i]) {
3219 case MONO_MARSHAL_SERIALIZE: {
3220 /* take the value from the serialized array */
3221 mono_mb_emit_ldloc (mb, loc_array);
3222 mono_mb_emit_icon (mb, j++);
3224 if (pclass->valuetype) {
3225 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3226 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3228 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3231 if (pclass->valuetype) {
3232 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3233 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3234 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3236 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3237 if (pclass != mono_defaults.object_class) {
3238 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3244 case MONO_MARSHAL_COPY_OUT: {
3245 /* Keep a local copy of the value since we need to copy it back after the call */
3246 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3247 mono_mb_emit_ldarg (mb, param_index++);
3248 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3249 mono_mb_emit_byte (mb, CEE_DUP);
3250 mono_mb_emit_stloc (mb, copy_local);
3253 case MONO_MARSHAL_COPY: {
3254 mono_mb_emit_ldarg (mb, param_index);
3256 mono_mb_emit_byte (mb, CEE_DUP);
3257 mono_mb_emit_byte (mb, CEE_DUP);
3258 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3259 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3260 mono_mb_emit_byte (mb, CEE_STIND_REF);
3262 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3267 case MONO_MARSHAL_NONE:
3268 mono_mb_emit_ldarg (mb, param_index++);
3273 /* Make the call to the real object */
3275 emit_thread_force_interrupt_checkpoint (mb);
3277 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3279 if (sig->ret->type != MONO_TYPE_VOID)
3280 mono_mb_emit_stloc (mb, loc_return);
3282 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3286 for (i = 0; i < sig->param_count; i++) {
3287 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3288 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3289 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3290 mono_mb_emit_ldarg (mb, param_index);
3291 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3296 /* Serialize the return values */
3298 if (complex_out_count > 0) {
3299 /* Reset parameters in the array that don't need to be serialized back */
3301 for (i = 0; i < sig->param_count; i++) {
3302 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3303 if (!sig->params [i]->byref) {
3304 mono_mb_emit_ldloc (mb, loc_array);
3305 mono_mb_emit_icon (mb, j);
3306 mono_mb_emit_byte (mb, CEE_LDNULL);
3307 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3312 /* Add the return value to the array */
3314 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3315 mono_mb_emit_ldloc (mb, loc_array);
3316 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3317 mono_mb_emit_ldloc (mb, loc_return);
3319 g_assert (ret_class); /*FIXME properly fail here*/
3320 if (ret_class->valuetype) {
3321 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3323 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3328 mono_mb_emit_ldarg (mb, 1);
3329 mono_mb_emit_ldloc (mb, loc_array);
3330 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3331 mono_mb_emit_byte (mb, CEE_STIND_REF);
3332 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3333 mono_mb_emit_ldarg (mb, 1);
3334 mono_mb_emit_ldloc (mb, loc_return);
3335 if (ret_class->valuetype) {
3336 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3338 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3339 mono_mb_emit_byte (mb, CEE_STIND_REF);
3341 mono_mb_emit_ldarg (mb, 1);
3342 mono_mb_emit_byte (mb, CEE_LDNULL);
3343 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3344 mono_mb_emit_byte (mb, CEE_STIND_REF);
3347 mono_mb_emit_ldarg (mb, 2);
3348 mono_mb_emit_byte (mb, CEE_LDNULL);
3349 mono_mb_emit_byte (mb, CEE_STIND_REF);
3350 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3352 /* Main exception catch */
3353 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3354 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3355 main_clause->data.catch_class = mono_defaults.object_class;
3358 main_clause->handler_offset = mono_mb_get_label (mb);
3359 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3360 mono_mb_emit_stloc (mb, loc_serialized_exc);
3361 mono_mb_emit_ldarg (mb, 2);
3362 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3363 mono_mb_emit_byte (mb, CEE_STIND_REF);
3364 mono_mb_emit_branch (mb, CEE_LEAVE);
3365 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3368 mono_mb_patch_branch (mb, pos_leave);
3371 mono_mb_emit_ldloc (mb, loc_return);
3373 mono_mb_emit_byte (mb, CEE_RET);
3375 mono_mb_set_clauses (mb, 1, main_clause);
3377 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3383 /* mono_marshal_get_xappdomain_invoke ()
3384 * Generates a fast remoting wrapper for cross app domain calls.
3387 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3389 MonoMethodSignature *sig;
3390 MonoMethodBuilder *mb;
3392 int i, j, complex_count, complex_out_count, copy_locals_base;
3394 MonoClass *ret_class = NULL;
3395 MonoMethod *xdomain_method;
3396 int ret_marshal_type = MONO_MARSHAL_NONE;
3397 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3398 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3399 int pos, pos_dispatch, pos_noex;
3400 gboolean copy_return = FALSE;
3404 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3407 /* we cant remote methods without this pointer */
3408 if (!mono_method_signature (method)->hasthis)
3411 if (!mono_marshal_supports_fast_xdomain (method))
3412 return mono_marshal_get_remoting_invoke (method);
3414 mono_remoting_marshal_init ();
3416 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3419 sig = mono_signature_no_pinvoke (method);
3421 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3422 mb->method->save_lmf = 1;
3424 /* Count the number of parameters that need to be serialized */
3426 marshal_types = alloca (sizeof (int) * sig->param_count);
3427 complex_count = complex_out_count = 0;
3428 for (i = 0; i < sig->param_count; i++) {
3429 MonoType *ptype = sig->params[i];
3430 int mt = mono_get_xdomain_marshal_type (ptype);
3432 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3433 * the copy will be made by reusing the original object instance
3435 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3436 mt = MONO_MARSHAL_COPY_OUT;
3437 else if (mt == MONO_MARSHAL_SERIALIZE) {
3439 if (ptype->byref) complex_out_count++;
3441 marshal_types [i] = mt;
3444 if (sig->ret->type != MONO_TYPE_VOID) {
3445 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3446 ret_class = mono_class_from_mono_type (sig->ret);
3447 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3452 if (complex_count > 0)
3453 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3454 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3455 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3457 loc_return = mono_mb_add_local (mb, sig->ret);
3458 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3459 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3460 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3461 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3463 /* Save thread domain data */
3465 mono_mb_emit_icall (mb, mono_context_get);
3466 mono_mb_emit_byte (mb, CEE_DUP);
3467 mono_mb_emit_stloc (mb, loc_context);
3469 /* If the thread is not running in the default context, it needs to go
3470 * through the whole remoting sink, since the context is going to change
3472 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3473 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3475 /* Another case in which the fast path can't be used: when the target domain
3476 * has a different image for the same assembly.
3479 /* Get the target domain id */
3481 mono_mb_emit_ldarg (mb, 0);
3482 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3483 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3484 mono_mb_emit_byte (mb, CEE_DUP);
3485 mono_mb_emit_stloc (mb, loc_real_proxy);
3487 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3488 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3489 mono_mb_emit_stloc (mb, loc_domainid);
3491 /* Check if the target domain has the same image for the required assembly */
3493 mono_mb_emit_ldloc (mb, loc_domainid);
3494 mono_mb_emit_ptr (mb, method->klass->image);
3495 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3496 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3498 /* Use the whole remoting sink to dispatch this message */
3500 mono_mb_patch_short_branch (mb, pos);
3502 mono_mb_emit_ldarg (mb, 0);
3503 for (i = 0; i < sig->param_count; i++)
3504 mono_mb_emit_ldarg (mb, i + 1);
3506 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3507 mono_mb_emit_byte (mb, CEE_RET);
3508 mono_mb_patch_short_branch (mb, pos_dispatch);
3510 /* Create the array that will hold the parameters to be serialized */
3512 if (complex_count > 0) {
3513 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 */
3514 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3517 for (i = 0; i < sig->param_count; i++) {
3519 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3520 pclass = mono_class_from_mono_type (sig->params[i]);
3521 mono_mb_emit_byte (mb, CEE_DUP);
3522 mono_mb_emit_icon (mb, j);
3523 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3524 if (sig->params[i]->byref) {
3525 if (pclass->valuetype)
3526 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3528 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3530 if (pclass->valuetype)
3531 mono_mb_emit_op (mb, CEE_BOX, pclass);
3532 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3535 mono_mb_emit_stloc (mb, loc_array);
3537 /* Serialize parameters */
3539 mono_mb_emit_ldloc (mb, loc_array);
3540 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3541 mono_mb_emit_stloc (mb, loc_serialized_data);
3543 mono_mb_emit_byte (mb, CEE_LDNULL);
3544 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3545 mono_mb_emit_stloc (mb, loc_serialized_data);
3550 mono_mb_emit_ldloc (mb, loc_domainid);
3551 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3552 mono_marshal_emit_switch_domain (mb);
3553 mono_mb_emit_stloc (mb, loc_old_domainid);
3555 /* Load the arguments */
3557 mono_mb_emit_ldloc (mb, loc_real_proxy);
3558 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3559 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3561 copy_locals_base = mb->locals;
3562 for (i = 0; i < sig->param_count; i++) {
3563 switch (marshal_types [i]) {
3564 case MONO_MARSHAL_SERIALIZE:
3566 case MONO_MARSHAL_COPY: {
3567 mono_mb_emit_ldarg (mb, i+1);
3568 if (sig->params [i]->byref) {
3569 /* make a local copy of the byref parameter. The real parameter
3570 * will be updated after the xdomain call
3572 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3573 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3574 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3575 mono_mb_emit_stloc (mb, copy_local);
3576 mono_mb_emit_ldloc_addr (mb, copy_local);
3580 case MONO_MARSHAL_COPY_OUT:
3581 case MONO_MARSHAL_NONE:
3582 mono_mb_emit_ldarg (mb, i+1);
3587 /* Make the call to the invoke wrapper in the target domain */
3589 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3590 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3591 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3594 mono_mb_emit_stloc (mb, loc_return);
3598 mono_mb_emit_ldloc (mb, loc_old_domainid);
3599 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3600 mono_marshal_emit_switch_domain (mb);
3601 mono_mb_emit_byte (mb, CEE_POP);
3603 /* Restore thread domain data */
3605 mono_mb_emit_ldloc (mb, loc_context);
3606 mono_mb_emit_icall (mb, mono_context_set);
3608 /* if (loc_serialized_exc != null) ... */
3610 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3611 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3613 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3614 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3615 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3616 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3617 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3618 mono_mb_emit_byte (mb, CEE_THROW);
3619 mono_mb_patch_short_branch (mb, pos_noex);
3621 /* copy back non-serialized output parameters */
3624 for (i = 0; i < sig->param_count; i++) {
3625 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3626 mono_mb_emit_ldarg (mb, i + 1);
3627 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3628 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3629 mono_mb_emit_byte (mb, CEE_STIND_REF);
3632 /* Deserialize out parameters */
3634 if (complex_out_count > 0) {
3635 mono_mb_emit_ldloc (mb, loc_serialized_data);
3636 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3637 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3638 mono_mb_emit_stloc (mb, loc_array);
3640 /* Copy back output parameters and return type */
3643 for (i = 0; i < sig->param_count; i++) {
3644 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3645 if (sig->params[i]->byref) {
3646 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3647 mono_mb_emit_ldarg (mb, i + 1);
3648 mono_mb_emit_ldloc (mb, loc_array);
3649 mono_mb_emit_icon (mb, j);
3650 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3651 if (pclass->valuetype) {
3652 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3653 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3654 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3656 if (pclass != mono_defaults.object_class)
3657 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3658 mono_mb_emit_byte (mb, CEE_STIND_REF);
3664 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3665 mono_mb_emit_ldloc (mb, loc_array);
3666 mono_mb_emit_icon (mb, complex_count);
3667 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3668 if (ret_class->valuetype) {
3669 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3670 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3673 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3674 mono_mb_emit_ldloc (mb, loc_serialized_data);
3675 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3676 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3677 if (ret_class->valuetype) {
3678 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3679 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3680 } else if (ret_class != mono_defaults.object_class) {
3681 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3684 mono_mb_emit_ldloc (mb, loc_serialized_data);
3685 mono_mb_emit_byte (mb, CEE_DUP);
3686 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3687 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3689 mono_mb_patch_short_branch (mb, pos);
3690 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3691 mono_mb_emit_byte (mb, CEE_POP);
3695 mono_mb_emit_ldloc (mb, loc_return);
3696 if (ret_marshal_type == MONO_MARSHAL_COPY)
3697 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3700 mono_mb_emit_byte (mb, CEE_RET);
3702 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3709 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3711 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3712 return mono_marshal_get_xappdomain_invoke (method);
3713 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3715 return mono_cominterop_get_invoke (method);
3717 g_assert_not_reached ();
3720 return mono_marshal_get_remoting_invoke (method);
3726 G_GNUC_UNUSED static gpointer
3727 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3729 if (rp->target_domain_id != -1)
3730 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3732 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3736 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3738 MonoMethodSignature *sig;
3739 MonoMethodBuilder *mb;
3740 MonoMethod *res, *native;
3741 int i, pos, pos_rem;
3745 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3748 /* we cant remote methods without this pointer */
3749 g_assert (mono_method_signature (method)->hasthis);
3751 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3754 sig = mono_signature_no_pinvoke (method);
3756 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3758 for (i = 0; i <= sig->param_count; i++)
3759 mono_mb_emit_ldarg (mb, i);
3761 mono_mb_emit_ldarg (mb, 0);
3762 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3764 if (mono_marshal_supports_fast_xdomain (method)) {
3765 mono_mb_emit_ldarg (mb, 0);
3766 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3768 /* wrapper for cross app domain calls */
3769 native = mono_marshal_get_xappdomain_invoke (method);
3770 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3771 mono_mb_emit_byte (mb, CEE_RET);
3773 mono_mb_patch_branch (mb, pos_rem);
3775 /* wrapper for normal remote calls */
3776 native = mono_marshal_get_remoting_invoke (method);
3777 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3778 mono_mb_emit_byte (mb, CEE_RET);
3781 mono_mb_patch_branch (mb, pos);
3782 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3783 mono_mb_emit_byte (mb, CEE_RET);
3785 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3793 MonoMethodSignature *sig;
3795 } SignatureMethodPair;
3798 signature_method_pair_hash (gconstpointer data)
3800 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3802 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3806 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3808 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3812 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3814 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3815 MonoMethod *method = (MonoMethod*)user_data;
3817 return pair->method == method;
3821 free_signature_method_pair (SignatureMethodPair *pair)
3827 * the returned method invokes all methods in a multicast delegate.
3830 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3832 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3834 MonoMethodBuilder *mb;
3835 MonoMethod *res, *newm;
3837 SignatureMethodPair key;
3838 SignatureMethodPair *new_key;
3839 int local_prev, local_target;
3842 MonoMethod *target_method = NULL;
3843 MonoClass *target_class = NULL;
3844 gboolean callvirt = FALSE;
3845 gboolean closed_over_null = FALSE;
3846 gboolean static_method_with_first_arg_bound = FALSE;
3849 * If the delegate target is null, and the target method is not static, a virtual
3850 * call is made to that method with the first delegate argument as this. This is
3851 * a non-documented .NET feature.
3853 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3855 target_method = del->method;
3856 if (target_method->is_inflated) {
3857 MonoType *target_type;
3859 g_assert (method->signature->hasthis);
3860 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3861 mono_method_get_context (method));
3862 target_class = mono_class_from_mono_type (target_type);
3864 target_class = del->method->klass;
3868 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3869 !strcmp (method->name, "Invoke"));
3871 invoke_sig = sig = mono_signature_no_pinvoke (method);
3874 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3876 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3877 invoke_sig = mono_method_signature (del->method);
3878 target_method = del->method;
3879 static_method_with_first_arg_bound = TRUE;
3882 if (callvirt || static_method_with_first_arg_bound) {
3883 GHashTable **cache_ptr;
3884 if (static_method_with_first_arg_bound)
3885 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
3887 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3889 /* We need to cache the signature+method pair */
3890 mono_marshal_lock ();
3892 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3894 key.sig = invoke_sig;
3895 key.method = target_method;
3896 res = g_hash_table_lookup (cache, &key);
3897 mono_marshal_unlock ();
3901 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3902 (GHashFunc)mono_signature_hash,
3903 (GCompareFunc)mono_metadata_signature_equal);
3904 if ((res = mono_marshal_find_in_cache (cache, sig)))
3908 static_sig = signature_dup (method->klass->image, sig);
3909 static_sig->hasthis = 0;
3910 if (!static_method_with_first_arg_bound)
3911 invoke_sig = static_sig;
3913 name = mono_signature_to_name (sig, "invoke");
3914 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3917 /* allocate local 0 (object) */
3918 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3919 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3921 g_assert (sig->hasthis);
3925 * prev.Invoke( args .. );
3926 * return this.<target>( args .. );
3929 /* this wrapper can be used in unmanaged-managed transitions */
3930 emit_thread_interrupt_checkpoint (mb);
3932 /* get this->prev */
3933 mono_mb_emit_ldarg (mb, 0);
3934 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3935 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3936 mono_mb_emit_stloc (mb, local_prev);
3937 mono_mb_emit_ldloc (mb, local_prev);
3939 /* if prev != null */
3940 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3944 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3945 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3947 mono_mb_emit_ldloc (mb, local_prev);
3948 for (i = 0; i < sig->param_count; i++)
3949 mono_mb_emit_ldarg (mb, i + 1);
3950 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3951 if (sig->ret->type != MONO_TYPE_VOID)
3952 mono_mb_emit_byte (mb, CEE_POP);
3954 /* continued or prev == null */
3955 mono_mb_patch_branch (mb, pos0);
3957 /* get this->target */
3958 mono_mb_emit_ldarg (mb, 0);
3959 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3960 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3961 mono_mb_emit_stloc (mb, local_target);
3963 /*static methods with bound first arg can have null target and still be bound*/
3964 if (!static_method_with_first_arg_bound) {
3965 /* if target != null */
3966 mono_mb_emit_ldloc (mb, local_target);
3967 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3969 /* then call this->method_ptr nonstatic */
3972 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3974 mono_mb_emit_ldloc (mb, local_target);
3975 for (i = 0; i < sig->param_count; ++i)
3976 mono_mb_emit_ldarg (mb, i + 1);
3977 mono_mb_emit_ldarg (mb, 0);
3978 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3979 mono_mb_emit_byte (mb, CEE_LDIND_I );
3980 mono_mb_emit_op (mb, CEE_CALLI, sig);
3982 mono_mb_emit_byte (mb, CEE_RET);
3985 /* else [target == null] call this->method_ptr static */
3986 mono_mb_patch_branch (mb, pos0);
3990 if (!closed_over_null) {
3991 mono_mb_emit_ldarg (mb, 1);
3992 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3993 for (i = 1; i < sig->param_count; ++i)
3994 mono_mb_emit_ldarg (mb, i + 1);
3995 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3997 mono_mb_emit_byte (mb, CEE_LDNULL);
3998 for (i = 0; i < sig->param_count; ++i)
3999 mono_mb_emit_ldarg (mb, i + 1);
4000 mono_mb_emit_op (mb, CEE_CALL, target_method);
4003 if (static_method_with_first_arg_bound) {
4004 mono_mb_emit_ldloc (mb, local_target);
4005 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4006 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4008 for (i = 0; i < sig->param_count; ++i)
4009 mono_mb_emit_ldarg (mb, i + 1);
4010 mono_mb_emit_ldarg (mb, 0);
4011 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4012 mono_mb_emit_byte (mb, CEE_LDIND_I );
4013 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4016 mono_mb_emit_byte (mb, CEE_RET);
4018 if (static_method_with_first_arg_bound || callvirt) {
4019 // From mono_mb_create_and_cache
4020 mb->skip_visibility = 1;
4021 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4022 /*We perform double checked locking, so must fence before publishing*/
4023 mono_memory_barrier ();
4024 mono_marshal_lock ();
4025 res = g_hash_table_lookup (cache, &key);
4028 new_key = g_new0 (SignatureMethodPair, 1);
4030 if (static_method_with_first_arg_bound)
4031 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4032 g_hash_table_insert (cache, new_key, res);
4033 mono_marshal_set_wrapper_info (res, new_key);
4034 mono_marshal_unlock ();
4036 mono_marshal_unlock ();
4037 mono_free_method (newm);
4040 mb->skip_visibility = 1;
4041 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4049 * signature_dup_add_this:
4051 * Make a copy of @sig, adding an explicit this argument.
4053 static MonoMethodSignature*
4054 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4056 MonoMethodSignature *res;
4059 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4060 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4061 res->param_count = sig->param_count + 1;
4062 res->hasthis = FALSE;
4063 for (i = sig->param_count - 1; i >= 0; i --)
4064 res->params [i + 1] = sig->params [i];
4065 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4071 MonoMethodSignature *ctor_sig;
4072 MonoMethodSignature *sig;
4075 /* protected by the marshal lock, contains CtorSigPair pointers */
4076 static GSList *strsig_list = NULL;
4078 static MonoMethodSignature *
4079 lookup_string_ctor_signature (MonoMethodSignature *sig)
4081 MonoMethodSignature *callsig;
4085 mono_marshal_lock ();
4087 for (item = strsig_list; item; item = item->next) {
4089 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4090 * because it is lock-free.
4092 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4097 mono_marshal_unlock ();
4101 static MonoMethodSignature *
4102 add_string_ctor_signature (MonoMethod *method)
4104 MonoMethodSignature *callsig;
4107 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4108 callsig->ret = &mono_defaults.string_class->byval_arg;
4109 cs = g_new (CtorSigPair, 1);
4111 cs->ctor_sig = mono_method_signature (method);
4113 mono_marshal_lock ();
4114 strsig_list = g_slist_prepend (strsig_list, cs);
4115 mono_marshal_unlock ();
4120 * mono_marshal_get_string_ctor_signature:
4122 * Return the modified signature used by string ctors (they return the newly created
4125 MonoMethodSignature*
4126 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4128 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4130 sig = add_string_ctor_signature (method);
4136 get_runtime_invoke_type (MonoType *t, gboolean ret)
4139 /* Can't share this with 'I' as that needs another indirection */
4142 if (MONO_TYPE_IS_REFERENCE (t))
4143 return &mono_defaults.object_class->byval_arg;
4146 /* The result needs to be boxed */
4152 return &mono_defaults.sbyte_class->byval_arg;
4154 return &mono_defaults.int16_class->byval_arg;
4156 return &mono_defaults.int32_class->byval_arg;
4158 return &mono_defaults.int64_class->byval_arg;
4159 case MONO_TYPE_BOOLEAN:
4160 return &mono_defaults.sbyte_class->byval_arg;
4161 case MONO_TYPE_CHAR:
4162 return &mono_defaults.int16_class->byval_arg;
4165 return &mono_defaults.int_class->byval_arg;
4166 case MONO_TYPE_VALUETYPE:
4167 if (t->data.klass->enumtype) {
4168 t = mono_class_enum_basetype (t->data.klass);
4178 * mono_marshal_get_runtime_invoke_sig:
4180 * Return a common signature used for sharing runtime invoke wrappers.
4182 static MonoMethodSignature*
4183 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4185 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4188 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4189 for (i = 0; i < res->param_count; ++i)
4190 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4196 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4198 /* Can't share wrappers which return a vtype since it needs to be boxed */
4199 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))
4202 return mono_metadata_signature_equal (sig1, sig2);
4208 * Emit the call to the wrapper method from a runtime invoke wrapper.
4211 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4212 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4214 gboolean virtual, gboolean need_direct_wrapper)
4216 static MonoString *string_dummy = NULL;
4218 int *tmp_nullable_locals;
4219 gboolean void_ret = FALSE;
4221 /* to make it work with our special string constructors */
4222 if (!string_dummy) {
4223 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4224 string_dummy = mono_string_new_wrapper ("dummy");
4228 g_assert (sig->hasthis);
4229 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4233 if (method->string_ctor) {
4234 mono_mb_emit_ptr (mb, string_dummy);
4236 mono_mb_emit_ldarg (mb, 0);
4240 tmp_nullable_locals = g_new0 (int, sig->param_count);
4242 for (i = 0; i < sig->param_count; i++) {
4243 MonoType *t = sig->params [i];
4246 mono_mb_emit_ldarg (mb, 1);
4248 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4249 mono_mb_emit_byte (mb, CEE_ADD);
4253 mono_mb_emit_byte (mb, CEE_LDIND_I);
4254 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4255 * So to make this work we unbox it to a local variablee and push a reference to that.
4257 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4258 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4260 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4261 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4262 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4267 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4268 type = sig->params [i]->type;
4272 case MONO_TYPE_BOOLEAN:
4276 case MONO_TYPE_CHAR:
4285 mono_mb_emit_byte (mb, CEE_LDIND_I);
4286 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4288 case MONO_TYPE_STRING:
4289 case MONO_TYPE_CLASS:
4290 case MONO_TYPE_ARRAY:
4292 case MONO_TYPE_SZARRAY:
4293 case MONO_TYPE_OBJECT:
4294 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4296 case MONO_TYPE_GENERICINST:
4297 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4298 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4303 case MONO_TYPE_VALUETYPE:
4304 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4305 type = mono_class_enum_basetype (t->data.klass)->type;
4308 mono_mb_emit_byte (mb, CEE_LDIND_I);
4309 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4310 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4311 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4312 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4314 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4318 g_assert_not_reached ();
4323 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4324 } else if (need_direct_wrapper) {
4325 mono_mb_emit_op (mb, CEE_CALL, method);
4327 mono_mb_emit_ldarg (mb, 3);
4328 mono_mb_emit_calli (mb, callsig);
4331 if (sig->ret->byref) {
4333 g_assert_not_reached ();
4336 switch (sig->ret->type) {
4337 case MONO_TYPE_VOID:
4338 if (!method->string_ctor)
4341 case MONO_TYPE_BOOLEAN:
4342 case MONO_TYPE_CHAR:
4355 case MONO_TYPE_VALUETYPE:
4356 case MONO_TYPE_TYPEDBYREF:
4357 case MONO_TYPE_GENERICINST:
4358 /* box value types */
4359 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4361 case MONO_TYPE_STRING:
4362 case MONO_TYPE_CLASS:
4363 case MONO_TYPE_ARRAY:
4364 case MONO_TYPE_SZARRAY:
4365 case MONO_TYPE_OBJECT:
4369 /* The result is an IntPtr */
4370 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4373 g_assert_not_reached ();
4377 mono_mb_emit_stloc (mb, loc_res);
4379 /* Convert back nullable-byref arguments */
4380 for (i = 0; i < sig->param_count; i++) {
4381 MonoType *t = sig->params [i];
4384 * Box the result and put it back into the array, the caller will have
4385 * to obtain it from there.
4387 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4388 mono_mb_emit_ldarg (mb, 1);
4389 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4390 mono_mb_emit_byte (mb, CEE_ADD);
4392 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4393 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4395 mono_mb_emit_byte (mb, CEE_STIND_REF);
4399 g_free (tmp_nullable_locals);
4403 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4404 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4405 gboolean virtual, gboolean need_direct_wrapper)
4408 MonoExceptionClause *clause;
4409 int loc_res, loc_exc;
4411 /* The wrapper looks like this:
4417 * } catch (Exception e) {
4425 /* allocate local 0 (object) tmp */
4426 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4427 /* allocate local 1 (object) exc */
4428 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4430 /* *exc is assumed to be initialized to NULL by the caller */
4432 mono_mb_emit_byte (mb, CEE_LDARG_2);
4433 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4438 labels [1] = mono_mb_get_label (mb);
4439 emit_thread_force_interrupt_checkpoint (mb);
4440 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4442 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4444 /* Add a try clause around the call */
4445 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4446 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4447 clause->data.catch_class = mono_defaults.exception_class;
4448 clause->try_offset = labels [1];
4449 clause->try_len = mono_mb_get_label (mb) - labels [1];
4451 clause->handler_offset = mono_mb_get_label (mb);
4454 mono_mb_emit_stloc (mb, loc_exc);
4455 mono_mb_emit_byte (mb, CEE_LDARG_2);
4456 mono_mb_emit_ldloc (mb, loc_exc);
4457 mono_mb_emit_byte (mb, CEE_STIND_REF);
4459 mono_mb_emit_branch (mb, CEE_LEAVE);
4461 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4463 mono_mb_set_clauses (mb, 1, clause);
4465 mono_mb_patch_branch (mb, labels [2]);
4466 mono_mb_emit_ldloc (mb, loc_res);
4467 mono_mb_emit_byte (mb, CEE_RET);
4472 mono_mb_patch_branch (mb, labels [0]);
4473 emit_thread_force_interrupt_checkpoint (mb);
4474 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4476 mono_mb_emit_ldloc (mb, 0);
4477 mono_mb_emit_byte (mb, CEE_RET);
4481 * generates IL code for the runtime invoke function
4482 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4484 * we also catch exceptions if exc != null
4485 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4486 * it means that the compiled code for METHOD does not have to be looked up
4487 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4488 * its METHOD argument.
4491 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4493 MonoMethodSignature *sig, *csig, *callsig;
4494 MonoMethodBuilder *mb;
4495 GHashTable *cache = NULL;
4496 MonoClass *target_klass;
4497 MonoMethod *res = NULL;
4498 static MonoMethodSignature *cctor_signature = NULL;
4499 static MonoMethodSignature *finalize_signature = NULL;
4501 const char *param_names [16];
4502 gboolean need_direct_wrapper = FALSE;
4506 if (!cctor_signature) {
4507 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4508 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4510 if (!finalize_signature) {
4511 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4512 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4513 finalize_signature->hasthis = 1;
4517 need_direct_wrapper = TRUE;
4520 * Use a separate cache indexed by methods to speed things up and to avoid the
4521 * boundless mempool growth caused by the signature_dup stuff below.
4524 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4526 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4527 res = mono_marshal_find_in_cache (cache, method);
4531 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4532 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4534 * Array Get/Set/Address methods. The JIT implements them using inline code
4535 * so we need to create an invoke wrapper which calls the method directly.
4537 need_direct_wrapper = TRUE;
4540 if (method->string_ctor) {
4541 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4543 callsig = add_string_ctor_signature (method);
4544 /* Can't share this as we push a string as this */
4545 need_direct_wrapper = TRUE;
4547 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4549 * Valuetype methods receive a managed pointer as the this argument.
4550 * Create a new signature to reflect this.
4552 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4553 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4554 need_direct_wrapper = TRUE;
4556 if (method->dynamic)
4557 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4559 callsig = mono_method_signature (method);
4563 target_klass = get_wrapper_target_class (method->klass->image);
4565 /* Try to share wrappers for non-corlib methods with simple signatures */
4566 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4567 callsig = cctor_signature;
4568 target_klass = mono_defaults.object_class;
4569 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4570 callsig = finalize_signature;
4571 target_klass = mono_defaults.object_class;
4574 if (need_direct_wrapper) {
4575 /* Already searched at the start */
4577 MonoMethodSignature *tmp_sig;
4579 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4581 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4582 (GHashFunc)mono_signature_hash,
4583 (GCompareFunc)runtime_invoke_signature_equal);
4585 /* from mono_marshal_find_in_cache */
4586 mono_marshal_lock ();
4587 res = g_hash_table_lookup (cache, callsig);
4588 mono_marshal_unlock ();
4595 /* Make a copy of the signature from the image mempool */
4597 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4601 sig = mono_method_signature (method);
4603 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4605 csig->ret = &mono_defaults.object_class->byval_arg;
4606 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4607 csig->params [0] = callsig->params [0];
4609 csig->params [0] = &mono_defaults.object_class->byval_arg;
4610 csig->params [1] = &mono_defaults.int_class->byval_arg;
4611 csig->params [2] = &mono_defaults.int_class->byval_arg;
4612 csig->params [3] = &mono_defaults.int_class->byval_arg;
4615 /* This is called from runtime code so it has to be cdecl */
4616 csig->call_convention = MONO_CALL_C;
4619 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4620 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4623 param_names [0] = "this";
4624 param_names [1] = "params";
4625 param_names [2] = "exc";
4626 param_names [3] = "method";
4627 mono_mb_set_param_names (mb, param_names);
4629 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4631 if (need_direct_wrapper) {
4632 mb->skip_visibility = 1;
4633 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4635 /* taken from mono_mb_create_and_cache */
4636 mono_marshal_lock ();
4637 res = g_hash_table_lookup (cache, callsig);
4638 mono_marshal_unlock ();
4640 /* Somebody may have created it before us */
4643 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4645 mono_marshal_lock ();
4646 res = g_hash_table_lookup (cache, callsig);
4649 g_hash_table_insert (cache, callsig, res);
4650 /* Can't insert it into wrapper_hash since the key is a signature */
4651 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4653 mono_free_method (newm);
4655 mono_marshal_unlock ();
4658 /* end mono_mb_create_and_cache */
4667 * mono_marshal_get_runtime_invoke_dynamic:
4669 * Return a method which can be used to invoke managed methods from native code
4671 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4672 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4673 * ARGS should point to an architecture specific structure containing
4674 * the arguments and space for the return value.
4675 * The other arguments are the same as for runtime_invoke (), except that
4676 * ARGS should contain the this argument too.
4677 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4678 * is only one copy of it, which is useful in full-aot.
4681 mono_marshal_get_runtime_invoke_dynamic (void)
4683 static MonoMethod *method;
4684 MonoMethodSignature *csig;
4685 MonoExceptionClause *clause;
4686 MonoMethodBuilder *mb;
4693 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4695 csig->ret = &mono_defaults.void_class->byval_arg;
4696 csig->params [0] = &mono_defaults.int_class->byval_arg;
4697 csig->params [1] = &mono_defaults.int_class->byval_arg;
4698 csig->params [2] = &mono_defaults.int_class->byval_arg;
4699 csig->params [3] = &mono_defaults.int_class->byval_arg;
4701 name = g_strdup ("runtime_invoke_dynamic");
4702 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4705 /* allocate local 0 (object) tmp */
4706 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4707 /* allocate local 1 (object) exc */
4708 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4710 /* cond set *exc to null */
4711 mono_mb_emit_byte (mb, CEE_LDARG_1);
4712 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4713 mono_mb_emit_byte (mb, 3);
4714 mono_mb_emit_byte (mb, CEE_LDARG_1);
4715 mono_mb_emit_byte (mb, CEE_LDNULL);
4716 mono_mb_emit_byte (mb, CEE_STIND_REF);
4718 emit_thread_force_interrupt_checkpoint (mb);
4720 mono_mb_emit_byte (mb, CEE_LDARG_0);
4721 mono_mb_emit_byte (mb, CEE_LDARG_2);
4722 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4723 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4725 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4727 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4728 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4729 clause->try_len = mono_mb_get_label (mb);
4732 clause->data.filter_offset = mono_mb_get_label (mb);
4734 mono_mb_emit_byte (mb, CEE_POP);
4735 mono_mb_emit_byte (mb, CEE_LDARG_1);
4736 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4737 mono_mb_emit_byte (mb, CEE_PREFIX1);
4738 mono_mb_emit_byte (mb, CEE_CGT_UN);
4739 mono_mb_emit_byte (mb, CEE_PREFIX1);
4740 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4742 clause->handler_offset = mono_mb_get_label (mb);
4745 /* store exception */
4746 mono_mb_emit_stloc (mb, 1);
4748 mono_mb_emit_byte (mb, CEE_LDARG_1);
4749 mono_mb_emit_ldloc (mb, 1);
4750 mono_mb_emit_byte (mb, CEE_STIND_REF);
4752 mono_mb_emit_byte (mb, CEE_LDNULL);
4753 mono_mb_emit_stloc (mb, 0);
4755 /* Check for the abort exception */
4756 mono_mb_emit_ldloc (mb, 1);
4757 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4758 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4760 /* Delay the abort exception */
4761 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4763 mono_mb_patch_short_branch (mb, posna);
4764 mono_mb_emit_branch (mb, CEE_LEAVE);
4766 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4768 mono_mb_set_clauses (mb, 1, clause);
4771 mono_mb_patch_branch (mb, pos);
4772 //mono_mb_emit_ldloc (mb, 0);
4773 mono_mb_emit_byte (mb, CEE_RET);
4775 mono_loader_lock ();
4776 /* double-checked locking */
4778 method = mono_mb_create_method (mb, csig, 16);
4780 mono_loader_unlock ();
4788 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4790 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4791 klass->name_space, klass->name);
4793 mono_mb_emit_exception_marshal_directive (mb, msg);
4797 * mono_marshal_get_ldfld_remote_wrapper:
4798 * @klass: The return type
4800 * This method generates a wrapper for calling mono_load_remote_field_new.
4801 * The return type is ignored for now, as mono_load_remote_field_new () always
4802 * returns an object. In the future, to optimize some codepaths, we might
4803 * call a different function that takes a pointer to a valuetype, instead.
4806 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4808 MonoMethodSignature *sig, *csig;
4809 MonoMethodBuilder *mb;
4811 static MonoMethod* cached = NULL;
4813 mono_marshal_lock ();
4815 mono_marshal_unlock ();
4818 mono_marshal_unlock ();
4820 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4822 mb->method->save_lmf = 1;
4824 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4825 sig->params [0] = &mono_defaults.object_class->byval_arg;
4826 sig->params [1] = &mono_defaults.int_class->byval_arg;
4827 sig->params [2] = &mono_defaults.int_class->byval_arg;
4828 sig->ret = &mono_defaults.object_class->byval_arg;
4830 mono_mb_emit_ldarg (mb, 0);
4831 mono_mb_emit_ldarg (mb, 1);
4832 mono_mb_emit_ldarg (mb, 2);
4834 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4835 csig->params [0] = &mono_defaults.object_class->byval_arg;
4836 csig->params [1] = &mono_defaults.int_class->byval_arg;
4837 csig->params [2] = &mono_defaults.int_class->byval_arg;
4838 csig->ret = &mono_defaults.object_class->byval_arg;
4841 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4842 emit_thread_interrupt_checkpoint (mb);
4844 mono_mb_emit_byte (mb, CEE_RET);
4846 mono_marshal_lock ();
4848 mono_marshal_unlock ();
4851 newm = mono_mb_create_method (mb, sig, 4);
4852 mono_marshal_lock ();
4857 mono_marshal_unlock ();
4859 mono_marshal_unlock ();
4860 mono_free_method (newm);
4869 * mono_marshal_get_ldfld_wrapper:
4870 * @type: the type of the field
4872 * This method generates a function which can be use to load a field with type
4873 * @type from an object. The generated function has the following signature:
4874 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4877 mono_marshal_get_ldfld_wrapper (MonoType *type)
4879 MonoMethodSignature *sig;
4880 MonoMethodBuilder *mb;
4885 int t, pos0, pos1 = 0;
4887 type = mono_type_get_underlying_type (type);
4892 if (type->type == MONO_TYPE_SZARRAY) {
4893 klass = mono_defaults.array_class;
4894 } else if (type->type == MONO_TYPE_VALUETYPE) {
4895 klass = type->data.klass;
4896 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4897 klass = mono_defaults.object_class;
4898 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4899 klass = mono_defaults.int_class;
4900 } else if (t == MONO_TYPE_GENERICINST) {
4901 if (mono_type_generic_inst_is_valuetype (type))
4902 klass = mono_class_from_mono_type (type);
4904 klass = mono_defaults.object_class;
4906 klass = mono_class_from_mono_type (type);
4909 klass = mono_defaults.int_class;
4912 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4913 if ((res = mono_marshal_find_in_cache (cache, klass)))
4916 /* we add the %p pointer value of klass because class names are not unique */
4917 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4918 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4921 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4922 sig->params [0] = &mono_defaults.object_class->byval_arg;
4923 sig->params [1] = &mono_defaults.int_class->byval_arg;
4924 sig->params [2] = &mono_defaults.int_class->byval_arg;
4925 sig->params [3] = &mono_defaults.int_class->byval_arg;
4926 sig->ret = &klass->byval_arg;
4928 mono_mb_emit_ldarg (mb, 0);
4929 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4931 mono_mb_emit_ldarg (mb, 0);
4932 mono_mb_emit_ldarg (mb, 1);
4933 mono_mb_emit_ldarg (mb, 2);
4935 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4938 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4939 csig->params [0] = &mono_defaults.object_class->byval_arg;
4940 csig->params [1] = &mono_defaults.int_class->byval_arg;
4941 csig->params [2] = &mono_defaults.int_class->byval_arg;
4942 csig->ret = &klass->this_arg;
4945 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4946 emit_thread_interrupt_checkpoint (mb);
4949 if (klass->valuetype) {
4950 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4951 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4953 mono_mb_emit_byte (mb, CEE_RET);
4957 mono_mb_patch_branch (mb, pos0);
4959 mono_mb_emit_ldarg (mb, 0);
4960 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4961 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4962 mono_mb_emit_ldarg (mb, 3);
4963 mono_mb_emit_byte (mb, CEE_ADD);
4965 if (klass->valuetype)
4966 mono_mb_patch_branch (mb, pos1);
4971 case MONO_TYPE_BOOLEAN:
4972 case MONO_TYPE_CHAR:
4981 case MONO_TYPE_ARRAY:
4982 case MONO_TYPE_SZARRAY:
4983 case MONO_TYPE_OBJECT:
4984 case MONO_TYPE_CLASS:
4985 case MONO_TYPE_STRING:
4989 case MONO_TYPE_FNPTR:
4990 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4992 case MONO_TYPE_VALUETYPE:
4993 g_assert (!klass->enumtype);
4994 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4996 case MONO_TYPE_GENERICINST:
4997 if (mono_type_generic_inst_is_valuetype (type)) {
4998 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5000 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5004 g_warning ("type %x not implemented", type->type);
5005 g_assert_not_reached ();
5008 mono_mb_emit_byte (mb, CEE_RET);
5010 res = mono_mb_create_and_cache (cache, klass,
5011 mb, sig, sig->param_count + 16);
5018 * mono_marshal_get_ldflda_wrapper:
5019 * @type: the type of the field
5021 * This method generates a function which can be used to load a field address
5022 * from an object. The generated function has the following signature:
5023 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5026 mono_marshal_get_ldflda_wrapper (MonoType *type)
5028 MonoMethodSignature *sig;
5029 MonoMethodBuilder *mb;
5034 int t, pos0, pos1, pos2, pos3;
5036 type = mono_type_get_underlying_type (type);
5040 if (type->type == MONO_TYPE_SZARRAY) {
5041 klass = mono_defaults.array_class;
5042 } else if (type->type == MONO_TYPE_VALUETYPE) {
5043 klass = type->data.klass;
5044 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5045 t == MONO_TYPE_CLASS) {
5046 klass = mono_defaults.object_class;
5047 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5048 klass = mono_defaults.int_class;
5049 } else if (t == MONO_TYPE_GENERICINST) {
5050 if (mono_type_generic_inst_is_valuetype (type))
5051 klass = mono_class_from_mono_type (type);
5053 klass = mono_defaults.object_class;
5055 klass = mono_class_from_mono_type (type);
5058 klass = mono_defaults.int_class;
5061 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5062 if ((res = mono_marshal_find_in_cache (cache, klass)))
5065 /* we add the %p pointer value of klass because class names are not unique */
5066 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5067 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5070 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5071 sig->params [0] = &mono_defaults.object_class->byval_arg;
5072 sig->params [1] = &mono_defaults.int_class->byval_arg;
5073 sig->params [2] = &mono_defaults.int_class->byval_arg;
5074 sig->params [3] = &mono_defaults.int_class->byval_arg;
5075 sig->ret = &mono_defaults.int_class->byval_arg;
5077 /* if typeof (this) != transparent_proxy goto pos0 */
5078 mono_mb_emit_ldarg (mb, 0);
5079 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5081 /* if same_appdomain goto pos1 */
5082 mono_mb_emit_ldarg (mb, 0);
5083 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5085 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5087 /* same app domain */
5088 mono_mb_patch_branch (mb, pos1);
5090 /* if typeof (this) != contextbound goto pos2 */
5091 mono_mb_emit_ldarg (mb, 0);
5092 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5094 /* if this->rp->context == mono_context_get goto pos3 */
5095 mono_mb_emit_ldarg (mb, 0);
5096 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5097 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5098 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5099 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5100 mono_mb_emit_icall (mb, mono_context_get);
5101 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5103 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5105 mono_mb_patch_branch (mb, pos2);
5106 mono_mb_patch_branch (mb, pos3);
5108 /* return the address of the field from this->rp->unwrapped_server */
5109 mono_mb_emit_ldarg (mb, 0);
5110 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5111 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5112 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5113 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5114 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5115 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5116 mono_mb_emit_ldarg (mb, 3);
5117 mono_mb_emit_byte (mb, CEE_ADD);
5118 mono_mb_emit_byte (mb, CEE_RET);
5120 /* not a proxy: return the address of the field directly */
5121 mono_mb_patch_branch (mb, pos0);
5123 mono_mb_emit_ldarg (mb, 0);
5124 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5125 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5126 mono_mb_emit_ldarg (mb, 3);
5127 mono_mb_emit_byte (mb, CEE_ADD);
5129 mono_mb_emit_byte (mb, CEE_RET);
5131 res = mono_mb_create_and_cache (cache, klass,
5132 mb, sig, sig->param_count + 16);
5139 * mono_marshal_get_stfld_remote_wrapper:
5140 * klass: The type of the field
5142 * This function generates a wrapper for calling mono_store_remote_field_new
5143 * with the appropriate signature.
5144 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5145 * klass argument anymore.
5148 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5150 MonoMethodSignature *sig, *csig;
5151 MonoMethodBuilder *mb;
5153 static MonoMethod *cached = NULL;
5155 mono_marshal_lock ();
5157 mono_marshal_unlock ();
5160 mono_marshal_unlock ();
5162 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5164 mb->method->save_lmf = 1;
5166 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5167 sig->params [0] = &mono_defaults.object_class->byval_arg;
5168 sig->params [1] = &mono_defaults.int_class->byval_arg;
5169 sig->params [2] = &mono_defaults.int_class->byval_arg;
5170 sig->params [3] = &mono_defaults.object_class->byval_arg;
5171 sig->ret = &mono_defaults.void_class->byval_arg;
5173 mono_mb_emit_ldarg (mb, 0);
5174 mono_mb_emit_ldarg (mb, 1);
5175 mono_mb_emit_ldarg (mb, 2);
5176 mono_mb_emit_ldarg (mb, 3);
5178 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5179 csig->params [0] = &mono_defaults.object_class->byval_arg;
5180 csig->params [1] = &mono_defaults.int_class->byval_arg;
5181 csig->params [2] = &mono_defaults.int_class->byval_arg;
5182 csig->params [3] = &mono_defaults.object_class->byval_arg;
5183 csig->ret = &mono_defaults.void_class->byval_arg;
5186 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5187 emit_thread_interrupt_checkpoint (mb);
5189 mono_mb_emit_byte (mb, CEE_RET);
5191 mono_marshal_lock ();
5193 mono_marshal_unlock ();
5196 newm = mono_mb_create_method (mb, sig, 6);
5197 mono_marshal_lock ();
5202 mono_marshal_unlock ();
5204 mono_marshal_unlock ();
5205 mono_free_method (newm);
5214 * mono_marshal_get_stfld_wrapper:
5215 * @type: the type of the field
5217 * This method generates a function which can be use to store a field with type
5218 * @type. The generated function has the following signature:
5219 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5222 mono_marshal_get_stfld_wrapper (MonoType *type)
5224 MonoMethodSignature *sig;
5225 MonoMethodBuilder *mb;
5232 type = mono_type_get_underlying_type (type);
5236 if (type->type == MONO_TYPE_SZARRAY) {
5237 klass = mono_defaults.array_class;
5238 } else if (type->type == MONO_TYPE_VALUETYPE) {
5239 klass = type->data.klass;
5240 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5241 klass = mono_defaults.object_class;
5242 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5243 klass = mono_defaults.int_class;
5244 } else if (t == MONO_TYPE_GENERICINST) {
5245 if (mono_type_generic_inst_is_valuetype (type))
5246 klass = mono_class_from_mono_type (type);
5248 klass = mono_defaults.object_class;
5250 klass = mono_class_from_mono_type (type);
5253 klass = mono_defaults.int_class;
5256 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5257 if ((res = mono_marshal_find_in_cache (cache, klass)))
5260 /* we add the %p pointer value of klass because class names are not unique */
5261 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5262 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5265 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5266 sig->params [0] = &mono_defaults.object_class->byval_arg;
5267 sig->params [1] = &mono_defaults.int_class->byval_arg;
5268 sig->params [2] = &mono_defaults.int_class->byval_arg;
5269 sig->params [3] = &mono_defaults.int_class->byval_arg;
5270 sig->params [4] = &klass->byval_arg;
5271 sig->ret = &mono_defaults.void_class->byval_arg;
5273 mono_mb_emit_ldarg (mb, 0);
5274 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5276 mono_mb_emit_ldarg (mb, 0);
5277 mono_mb_emit_ldarg (mb, 1);
5278 mono_mb_emit_ldarg (mb, 2);
5279 mono_mb_emit_ldarg (mb, 4);
5280 if (klass->valuetype)
5281 mono_mb_emit_op (mb, CEE_BOX, klass);
5283 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5285 mono_mb_emit_byte (mb, CEE_RET);
5287 mono_mb_patch_branch (mb, pos);
5289 mono_mb_emit_ldarg (mb, 0);
5290 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5291 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5292 mono_mb_emit_ldarg (mb, 3);
5293 mono_mb_emit_byte (mb, CEE_ADD);
5294 mono_mb_emit_ldarg (mb, 4);
5299 case MONO_TYPE_BOOLEAN:
5300 case MONO_TYPE_CHAR:
5309 case MONO_TYPE_ARRAY:
5310 case MONO_TYPE_SZARRAY:
5311 case MONO_TYPE_OBJECT:
5312 case MONO_TYPE_CLASS:
5313 case MONO_TYPE_STRING:
5317 case MONO_TYPE_FNPTR:
5318 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5320 case MONO_TYPE_VALUETYPE:
5321 g_assert (!klass->enumtype);
5322 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5324 case MONO_TYPE_GENERICINST:
5325 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5328 g_warning ("type %x not implemented", type->type);
5329 g_assert_not_reached ();
5332 mono_mb_emit_byte (mb, CEE_RET);
5334 res = mono_mb_create_and_cache (cache, klass,
5335 mb, sig, sig->param_count + 16);
5342 * generates IL code for the icall wrapper (the generated method
5343 * calls the unmanaged code in func)
5346 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5348 MonoMethodSignature *csig, *csig2;
5349 MonoMethodBuilder *mb;
5353 g_assert (sig->pinvoke);
5355 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5357 mb->method->save_lmf = 1;
5359 /* Add an explicit this argument */
5361 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5363 csig2 = signature_dup (mono_defaults.corlib, sig);
5366 mono_mb_emit_byte (mb, CEE_LDARG_0);
5368 for (i = 0; i < sig->param_count; i++)
5369 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5371 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5372 if (check_exceptions)
5373 emit_thread_interrupt_checkpoint (mb);
5374 mono_mb_emit_byte (mb, CEE_RET);
5376 csig = signature_dup (mono_defaults.corlib, sig);
5378 if (csig->call_convention == MONO_CALL_VARARG)
5379 csig->call_convention = 0;
5381 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5388 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5389 MonoMarshalSpec *spec,
5390 int conv_arg, MonoType **conv_arg_type,
5391 MarshalAction action)
5395 static MonoClass *ICustomMarshaler = NULL;
5396 static MonoMethod *cleanup_native, *cleanup_managed;
5397 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5398 MonoMethod *get_instance = NULL;
5399 MonoMethodBuilder *mb = m->mb;
5400 char *exception_msg = NULL;
5404 if (!ICustomMarshaler) {
5405 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5406 if (!ICustomMarshaler) {
5407 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5408 goto handle_exception;
5411 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5412 g_assert (cleanup_native);
5413 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5414 g_assert (cleanup_managed);
5415 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5416 g_assert (marshal_managed_to_native);
5417 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5418 g_assert (marshal_native_to_managed);
5421 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5422 g_assert (mtype != NULL);
5423 mklass = mono_class_from_mono_type (mtype);
5424 g_assert (mklass != NULL);
5426 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5427 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5429 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5431 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5432 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5433 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5434 (get_sig->params [0]->type != MONO_TYPE_STRING))
5435 get_instance = NULL;
5439 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);
5442 /* Throw exception and emit compensation code if neccesary */
5443 if (exception_msg) {
5445 case MARSHAL_ACTION_CONV_IN:
5446 case MARSHAL_ACTION_CONV_RESULT:
5447 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5448 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5449 mono_mb_emit_byte (mb, CEE_POP);
5451 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5452 g_free (exception_msg);
5455 case MARSHAL_ACTION_PUSH:
5456 mono_mb_emit_byte (mb, CEE_LDNULL);
5464 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5465 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5468 case MARSHAL_ACTION_CONV_IN:
5470 case MONO_TYPE_CLASS:
5471 case MONO_TYPE_OBJECT:
5472 case MONO_TYPE_STRING:
5473 case MONO_TYPE_ARRAY:
5474 case MONO_TYPE_SZARRAY:
5475 case MONO_TYPE_VALUETYPE:
5479 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5480 g_assert_not_reached ();
5484 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5486 mono_mb_emit_byte (mb, CEE_LDNULL);
5487 mono_mb_emit_stloc (mb, conv_arg);
5489 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5492 /* Minic MS.NET behavior */
5493 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5496 /* Check for null */
5497 mono_mb_emit_ldarg (mb, argnum);
5499 mono_mb_emit_byte (mb, CEE_LDIND_I);
5500 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5502 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5504 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5506 mono_mb_emit_ldarg (mb, argnum);
5508 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5510 if (t->type == MONO_TYPE_VALUETYPE) {
5512 * Since we can't determine the type of the argument, we
5513 * will assume the unmanaged function takes a pointer.
5515 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5517 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5520 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5521 mono_mb_emit_stloc (mb, conv_arg);
5523 mono_mb_patch_branch (mb, pos2);
5526 case MARSHAL_ACTION_CONV_OUT:
5527 /* Check for null */
5528 mono_mb_emit_ldloc (mb, conv_arg);
5529 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5532 mono_mb_emit_ldarg (mb, argnum);
5534 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5536 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5538 mono_mb_emit_ldloc (mb, conv_arg);
5539 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5540 mono_mb_emit_byte (mb, CEE_STIND_REF);
5541 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5542 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5544 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5546 mono_mb_emit_ldloc (mb, conv_arg);
5547 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5549 /* We have nowhere to store the result */
5550 mono_mb_emit_byte (mb, CEE_POP);
5553 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5555 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5557 mono_mb_emit_ldloc (mb, conv_arg);
5559 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5561 mono_mb_patch_branch (mb, pos2);
5564 case MARSHAL_ACTION_PUSH:
5566 mono_mb_emit_ldloc_addr (mb, conv_arg);
5568 mono_mb_emit_ldloc (mb, conv_arg);
5571 case MARSHAL_ACTION_CONV_RESULT:
5572 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5574 mono_mb_emit_stloc (mb, 3);
5576 mono_mb_emit_ldloc (mb, 3);
5577 mono_mb_emit_stloc (mb, loc1);
5579 /* Check for null */
5580 mono_mb_emit_ldloc (mb, 3);
5581 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5583 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5585 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5586 mono_mb_emit_byte (mb, CEE_DUP);
5588 mono_mb_emit_ldloc (mb, 3);
5589 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5590 mono_mb_emit_stloc (mb, 3);
5592 mono_mb_emit_ldloc (mb, loc1);
5593 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5595 mono_mb_patch_branch (mb, pos2);
5598 case MARSHAL_ACTION_MANAGED_CONV_IN:
5599 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5601 mono_mb_emit_byte (mb, CEE_LDNULL);
5602 mono_mb_emit_stloc (mb, conv_arg);
5604 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5607 /* Check for null */
5608 mono_mb_emit_ldarg (mb, argnum);
5610 mono_mb_emit_byte (mb, CEE_LDIND_I);
5611 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5613 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5614 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5616 mono_mb_emit_ldarg (mb, argnum);
5618 mono_mb_emit_byte (mb, CEE_LDIND_I);
5620 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5621 mono_mb_emit_stloc (mb, conv_arg);
5623 mono_mb_patch_branch (mb, pos2);
5626 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5627 g_assert (!t->byref);
5629 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5631 mono_mb_emit_stloc (mb, 3);
5633 mono_mb_emit_ldloc (mb, 3);
5634 mono_mb_emit_stloc (mb, loc1);
5636 /* Check for null */
5637 mono_mb_emit_ldloc (mb, 3);
5638 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5640 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5641 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5642 mono_mb_emit_byte (mb, CEE_DUP);
5644 mono_mb_emit_ldloc (mb, 3);
5645 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5646 mono_mb_emit_stloc (mb, 3);
5648 mono_mb_emit_ldloc (mb, loc1);
5649 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5651 mono_mb_patch_branch (mb, pos2);
5654 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5656 /* Check for null */
5657 mono_mb_emit_ldloc (mb, conv_arg);
5658 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5661 mono_mb_emit_ldarg (mb, argnum);
5663 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5665 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5667 mono_mb_emit_ldloc (mb, conv_arg);
5668 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5669 mono_mb_emit_byte (mb, CEE_STIND_I);
5672 /* Call CleanUpManagedData */
5673 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5675 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5677 mono_mb_emit_ldloc (mb, conv_arg);
5678 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5680 mono_mb_patch_branch (mb, pos2);
5684 g_assert_not_reached ();
5691 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5692 MonoMarshalSpec *spec,
5693 int conv_arg, MonoType **conv_arg_type,
5694 MarshalAction action)
5696 MonoMethodBuilder *mb = m->mb;
5699 case MARSHAL_ACTION_CONV_IN: {
5700 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5702 g_assert (t->type == MONO_TYPE_OBJECT);
5703 g_assert (!t->byref);
5705 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5706 mono_mb_emit_ldarg (mb, argnum);
5707 mono_mb_emit_icon (mb, encoding);
5708 mono_mb_emit_icon (mb, t->attrs);
5709 mono_mb_emit_icall (mb, mono_marshal_asany);
5710 mono_mb_emit_stloc (mb, conv_arg);
5714 case MARSHAL_ACTION_PUSH:
5715 mono_mb_emit_ldloc (mb, conv_arg);
5718 case MARSHAL_ACTION_CONV_OUT: {
5719 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5721 mono_mb_emit_ldarg (mb, argnum);
5722 mono_mb_emit_ldloc (mb, conv_arg);
5723 mono_mb_emit_icon (mb, encoding);
5724 mono_mb_emit_icon (mb, t->attrs);
5725 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5730 g_assert_not_reached ();
5737 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5738 MonoMarshalSpec *spec,
5739 int conv_arg, MonoType **conv_arg_type,
5740 MarshalAction action)
5742 MonoMethodBuilder *mb = m->mb;
5743 MonoClass *klass, *date_time_class;
5746 klass = mono_class_from_mono_type (t);
5748 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5751 case MARSHAL_ACTION_CONV_IN:
5752 if (klass == date_time_class) {
5753 /* Convert it to an OLE DATE type */
5754 static MonoMethod *to_oadate;
5757 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5758 g_assert (to_oadate);
5760 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5763 mono_mb_emit_ldarg (mb, argnum);
5764 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5767 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5769 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5771 mono_mb_emit_ldarg_addr (mb, argnum);
5772 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5773 mono_mb_emit_stloc (mb, conv_arg);
5777 mono_mb_patch_branch (mb, pos);
5781 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5782 klass->blittable || klass->enumtype)
5785 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5787 /* store the address of the source into local variable 0 */
5789 mono_mb_emit_ldarg (mb, argnum);
5791 mono_mb_emit_ldarg_addr (mb, argnum);
5793 mono_mb_emit_stloc (mb, 0);
5795 /* allocate space for the native struct and
5796 * store the address into local variable 1 (dest) */
5797 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5798 mono_mb_emit_byte (mb, CEE_PREFIX1);
5799 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5800 mono_mb_emit_stloc (mb, conv_arg);
5803 mono_mb_emit_ldloc (mb, 0);
5804 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5807 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5809 mono_mb_emit_ldloc (mb, conv_arg);
5810 mono_mb_emit_stloc (mb, 1);
5812 /* emit valuetype conversion code */
5813 emit_struct_conv (mb, klass, FALSE);
5817 mono_mb_patch_branch (mb, pos);
5820 case MARSHAL_ACTION_PUSH:
5821 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5823 g_assert (!t->byref);
5825 /* Have to change the signature since the vtype is passed byref */
5826 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5828 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5829 klass->blittable || klass->enumtype)
5830 mono_mb_emit_ldarg_addr (mb, argnum);
5832 mono_mb_emit_ldloc (mb, conv_arg);
5836 if (klass == date_time_class) {
5838 mono_mb_emit_ldloc_addr (mb, conv_arg);
5840 mono_mb_emit_ldloc (mb, conv_arg);
5844 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5845 klass->blittable || klass->enumtype) {
5846 mono_mb_emit_ldarg (mb, argnum);
5849 mono_mb_emit_ldloc (mb, conv_arg);
5851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5852 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5856 case MARSHAL_ACTION_CONV_OUT:
5857 if (klass == date_time_class) {
5858 /* Convert from an OLE DATE type */
5859 static MonoMethod *from_oadate;
5864 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5866 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5867 g_assert (from_oadate);
5869 mono_mb_emit_ldarg (mb, argnum);
5870 mono_mb_emit_ldloc (mb, conv_arg);
5871 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5872 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5877 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5878 klass->blittable || klass->enumtype)
5882 /* dst = argument */
5883 mono_mb_emit_ldarg (mb, argnum);
5884 mono_mb_emit_stloc (mb, 1);
5886 mono_mb_emit_ldloc (mb, 1);
5887 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5889 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5890 /* src = tmp_locals [i] */
5891 mono_mb_emit_ldloc (mb, conv_arg);
5892 mono_mb_emit_stloc (mb, 0);
5894 /* emit valuetype conversion code */
5895 emit_struct_conv (mb, klass, TRUE);
5899 emit_struct_free (mb, klass, conv_arg);
5902 mono_mb_patch_branch (mb, pos);
5905 case MARSHAL_ACTION_CONV_RESULT:
5906 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5908 mono_mb_emit_stloc (mb, 3);
5912 /* load pointer to returned value type */
5913 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5914 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5915 /* store the address of the source into local variable 0 */
5916 mono_mb_emit_stloc (mb, 0);
5918 mono_mb_emit_ldloc_addr (mb, 3);
5919 mono_mb_emit_stloc (mb, 1);
5921 /* emit valuetype conversion code */
5922 emit_struct_conv (mb, klass, TRUE);
5925 case MARSHAL_ACTION_MANAGED_CONV_IN:
5926 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5927 klass->blittable || klass->enumtype) {
5932 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5934 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5938 mono_mb_emit_ldarg (mb, argnum);
5940 mono_mb_emit_ldarg_addr (mb, argnum);
5941 mono_mb_emit_stloc (mb, 0);
5944 mono_mb_emit_ldloc (mb, 0);
5945 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5948 mono_mb_emit_ldloc_addr (mb, conv_arg);
5949 mono_mb_emit_stloc (mb, 1);
5951 /* emit valuetype conversion code */
5952 emit_struct_conv (mb, klass, TRUE);
5955 mono_mb_patch_branch (mb, pos);
5958 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5959 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5960 klass->blittable || klass->enumtype) {
5964 /* Check for null */
5965 mono_mb_emit_ldarg (mb, argnum);
5966 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5969 mono_mb_emit_ldloc_addr (mb, conv_arg);
5970 mono_mb_emit_stloc (mb, 0);
5973 mono_mb_emit_ldarg (mb, argnum);
5974 mono_mb_emit_stloc (mb, 1);
5976 /* emit valuetype conversion code */
5977 emit_struct_conv (mb, klass, FALSE);
5979 mono_mb_patch_branch (mb, pos2);
5982 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5983 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5984 klass->blittable || klass->enumtype) {
5985 mono_mb_emit_stloc (mb, 3);
5990 /* load pointer to returned value type */
5991 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5992 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5994 /* store the address of the source into local variable 0 */
5995 mono_mb_emit_stloc (mb, 0);
5996 /* allocate space for the native struct and
5997 * store the address into dst_ptr */
5998 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5999 m->retobj_class = klass;
6000 g_assert (m->retobj_var);
6001 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6002 mono_mb_emit_byte (mb, CEE_CONV_I);
6003 mono_mb_emit_icall (mb, mono_marshal_alloc);
6004 mono_mb_emit_stloc (mb, 1);
6005 mono_mb_emit_ldloc (mb, 1);
6006 mono_mb_emit_stloc (mb, m->retobj_var);
6008 /* emit valuetype conversion code */
6009 emit_struct_conv (mb, klass, FALSE);
6013 g_assert_not_reached ();
6020 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6021 MonoMarshalSpec *spec,
6022 int conv_arg, MonoType **conv_arg_type,
6023 MarshalAction action)
6025 MonoMethodBuilder *mb = m->mb;
6026 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6027 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6031 case MARSHAL_ACTION_CONV_IN:
6032 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6033 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6036 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6039 mono_mb_emit_ldarg (mb, argnum);
6040 mono_mb_emit_byte (mb, CEE_LDIND_I);
6042 mono_mb_emit_ldarg (mb, argnum);
6046 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6047 MonoException *exc = mono_get_exception_not_implemented (msg);
6048 g_warning ("%s", msg);
6050 mono_raise_exception (exc);
6053 mono_mb_emit_icall (mb, conv_to_icall (conv));
6055 mono_mb_emit_stloc (mb, conv_arg);
6058 case MARSHAL_ACTION_CONV_OUT:
6059 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6061 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6062 mono_mb_emit_exception_marshal_directive (mb, msg);
6066 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6067 static MonoMethod *m;
6070 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6075 * Have to allocate a new string with the same length as the original, and
6076 * copy the contents of the buffer pointed to by CONV_ARG into it.
6078 g_assert (t->byref);
6079 mono_mb_emit_ldarg (mb, argnum);
6080 mono_mb_emit_ldloc (mb, conv_arg);
6081 mono_mb_emit_ldarg (mb, argnum);
6082 mono_mb_emit_byte (mb, CEE_LDIND_I);
6083 mono_mb_emit_managed_call (mb, m, NULL);
6084 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
6085 mono_mb_emit_byte (mb, CEE_STIND_REF);
6086 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6087 mono_mb_emit_ldarg (mb, argnum);
6088 mono_mb_emit_ldloc (mb, conv_arg);
6089 mono_mb_emit_icall (mb, conv_to_icall (conv));
6090 mono_mb_emit_byte (mb, CEE_STIND_REF);
6093 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6094 mono_mb_emit_ldloc (mb, conv_arg);
6095 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6096 mono_mb_emit_icall (mb, mono_free_bstr);
6098 mono_mb_emit_icall (mb, mono_marshal_free);
6102 case MARSHAL_ACTION_PUSH:
6103 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
6104 mono_mb_emit_ldloc_addr (mb, conv_arg);
6106 mono_mb_emit_ldloc (mb, conv_arg);
6109 case MARSHAL_ACTION_CONV_RESULT:
6110 mono_mb_emit_stloc (mb, 0);
6112 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6114 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6115 mono_mb_emit_exception_marshal_directive (mb, msg);
6119 mono_mb_emit_ldloc (mb, 0);
6120 mono_mb_emit_icall (mb, conv_to_icall (conv));
6121 mono_mb_emit_stloc (mb, 3);
6123 /* free the string */
6124 mono_mb_emit_ldloc (mb, 0);
6125 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6126 mono_mb_emit_icall (mb, mono_free_bstr);
6128 mono_mb_emit_icall (mb, mono_marshal_free);
6131 case MARSHAL_ACTION_MANAGED_CONV_IN:
6132 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6134 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6136 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6138 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6139 mono_mb_emit_exception_marshal_directive (mb, msg);
6143 mono_mb_emit_ldarg (mb, argnum);
6145 mono_mb_emit_byte (mb, CEE_LDIND_I);
6146 mono_mb_emit_icall (mb, conv_to_icall (conv));
6147 mono_mb_emit_stloc (mb, conv_arg);
6150 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6153 mono_mb_emit_ldarg (mb, argnum);
6154 mono_mb_emit_ldloc (mb, conv_arg);
6155 mono_mb_emit_icall (mb, conv_to_icall (conv));
6156 mono_mb_emit_byte (mb, CEE_STIND_I);
6161 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6162 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6163 /* We need to make a copy so the caller is able to free it */
6164 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6166 mono_mb_emit_icall (mb, conv_to_icall (conv));
6167 mono_mb_emit_stloc (mb, 3);
6171 g_assert_not_reached ();
6178 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6179 MonoMarshalSpec *spec, int conv_arg,
6180 MonoType **conv_arg_type, MarshalAction action)
6182 MonoMethodBuilder *mb = m->mb;
6185 case MARSHAL_ACTION_CONV_IN: {
6186 MonoType *intptr_type;
6187 int dar_release_slot, pos;
6189 intptr_type = &mono_defaults.int_class->byval_arg;
6190 conv_arg = mono_mb_add_local (mb, intptr_type);
6191 *conv_arg_type = intptr_type;
6193 if (!sh_dangerous_add_ref)
6194 init_safe_handle ();
6196 mono_mb_emit_ldarg (mb, argnum);
6197 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6198 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6200 mono_mb_patch_branch (mb, pos);
6203 * My tests in show that ref SafeHandles are not really
6204 * passed as ref objects. Instead a NULL is passed as the
6207 mono_mb_emit_icon (mb, 0);
6208 mono_mb_emit_stloc (mb, conv_arg);
6212 /* Create local to hold the ref parameter to DangerousAddRef */
6213 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6215 /* set release = false; */
6216 mono_mb_emit_icon (mb, 0);
6217 mono_mb_emit_stloc (mb, dar_release_slot);
6219 /* safehandle.DangerousAddRef (ref release) */
6220 mono_mb_emit_ldarg (mb, argnum);
6221 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6222 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6224 /* Pull the handle field from SafeHandle */
6225 mono_mb_emit_ldarg (mb, argnum);
6226 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6227 mono_mb_emit_byte (mb, CEE_LDIND_I);
6228 mono_mb_emit_stloc (mb, conv_arg);
6233 case MARSHAL_ACTION_PUSH:
6235 mono_mb_emit_ldloc_addr (mb, conv_arg);
6237 mono_mb_emit_ldloc (mb, conv_arg);
6240 case MARSHAL_ACTION_CONV_OUT: {
6241 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6242 int dar_release_slot = conv_arg + 1;
6245 if (!sh_dangerous_release)
6246 init_safe_handle ();
6252 * My tests indicate that ref SafeHandles parameters are not actually
6253 * passed by ref, but instead a new Handle is created regardless of
6254 * whether a change happens in the unmanaged side.
6256 * Also, the Handle is created before calling into unmanaged code,
6257 * but we do not support that mechanism (getting to the original
6258 * handle) and it makes no difference where we create this
6260 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6262 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6265 /* refval = new SafeHandleDerived ()*/
6266 mono_mb_emit_ldarg (mb, argnum);
6267 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6268 mono_mb_emit_byte (mb, CEE_STIND_REF);
6270 /* refval.handle = returned_handle */
6271 mono_mb_emit_ldarg (mb, argnum);
6272 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6273 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6274 mono_mb_emit_ldloc (mb, conv_arg);
6275 mono_mb_emit_byte (mb, CEE_STIND_I);
6277 mono_mb_emit_ldloc (mb, dar_release_slot);
6278 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6279 mono_mb_emit_ldarg (mb, argnum);
6280 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6281 mono_mb_patch_branch (mb, label_next);
6286 case MARSHAL_ACTION_CONV_RESULT: {
6287 MonoMethod *ctor = NULL;
6288 int intptr_handle_slot;
6290 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6291 mono_mb_emit_byte (mb, CEE_POP);
6292 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
6296 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6298 mono_mb_emit_byte (mb, CEE_POP);
6299 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6302 /* Store the IntPtr results into a local */
6303 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6304 mono_mb_emit_stloc (mb, intptr_handle_slot);
6306 /* Create return value */
6307 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6308 mono_mb_emit_stloc (mb, 3);
6310 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6311 mono_mb_emit_ldloc (mb, 3);
6312 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6313 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6314 mono_mb_emit_byte (mb, CEE_STIND_I);
6318 case MARSHAL_ACTION_MANAGED_CONV_IN:
6319 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6322 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6323 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6326 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6327 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6330 printf ("Unhandled case for MarshalAction: %d\n", action);
6337 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6338 MonoMarshalSpec *spec, int conv_arg,
6339 MonoType **conv_arg_type, MarshalAction action)
6341 MonoMethodBuilder *mb = m->mb;
6344 case MARSHAL_ACTION_CONV_IN: {
6345 MonoType *intptr_type;
6347 intptr_type = &mono_defaults.int_class->byval_arg;
6348 conv_arg = mono_mb_add_local (mb, intptr_type);
6349 *conv_arg_type = intptr_type;
6352 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6353 mono_mb_emit_exception_marshal_directive (mb, msg);
6356 mono_mb_emit_ldarg_addr (mb, argnum);
6357 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6358 mono_mb_emit_byte (mb, CEE_ADD);
6359 mono_mb_emit_byte (mb, CEE_LDIND_I);
6360 mono_mb_emit_stloc (mb, conv_arg);
6364 case MARSHAL_ACTION_PUSH:
6365 mono_mb_emit_ldloc (mb, conv_arg);
6368 case MARSHAL_ACTION_CONV_OUT: {
6369 /* no resource release required */
6373 case MARSHAL_ACTION_CONV_RESULT: {
6374 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6375 mono_mb_emit_exception_marshal_directive (mb, msg);
6379 case MARSHAL_ACTION_MANAGED_CONV_IN:
6380 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6383 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6384 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6387 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6388 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6391 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6398 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6399 MonoMarshalSpec *spec,
6400 int conv_arg, MonoType **conv_arg_type,
6401 MarshalAction action)
6403 MonoMethodBuilder *mb = m->mb;
6404 MonoClass *klass = mono_class_from_mono_type (t);
6408 case MARSHAL_ACTION_CONV_IN:
6409 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6410 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6412 m->orig_conv_args [argnum] = 0;
6414 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6415 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6416 mono_mb_emit_exception_marshal_directive (mb, msg);
6420 if (klass->delegate) {
6422 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6423 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6424 mono_mb_emit_exception_marshal_directive (mb, msg);
6426 mono_mb_emit_byte (mb, CEE_LDNULL);
6427 mono_mb_emit_stloc (mb, conv_arg);
6429 mono_mb_emit_ldarg (mb, argnum);
6430 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6431 mono_mb_emit_stloc (mb, conv_arg);
6433 } else if (klass == mono_defaults.stringbuilder_class) {
6434 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6435 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6438 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6439 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6440 mono_mb_emit_exception_marshal_directive (mb, msg);
6445 mono_mb_emit_ldarg (mb, argnum);
6448 mono_mb_emit_icall (mb, conv_to_icall (conv));
6450 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6451 MonoException *exc = mono_get_exception_not_implemented (msg);
6452 g_warning ("%s", msg);
6454 mono_raise_exception (exc);
6457 mono_mb_emit_stloc (mb, conv_arg);
6458 } else if (klass->blittable) {
6459 mono_mb_emit_byte (mb, CEE_LDNULL);
6460 mono_mb_emit_stloc (mb, conv_arg);
6462 mono_mb_emit_ldarg (mb, argnum);
6463 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6465 mono_mb_emit_ldarg (mb, argnum);
6466 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6467 mono_mb_emit_stloc (mb, conv_arg);
6469 mono_mb_patch_branch (mb, pos);
6472 mono_mb_emit_byte (mb, CEE_LDNULL);
6473 mono_mb_emit_stloc (mb, conv_arg);
6476 /* we dont need any conversions for out parameters */
6477 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6480 mono_mb_emit_ldarg (mb, argnum);
6481 mono_mb_emit_byte (mb, CEE_LDIND_I);
6484 mono_mb_emit_ldarg (mb, argnum);
6485 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6486 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6489 /* store the address of the source into local variable 0 */
6490 mono_mb_emit_stloc (mb, 0);
6491 mono_mb_emit_ldloc (mb, 0);
6492 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6494 /* allocate space for the native struct and store the address */
6495 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6496 mono_mb_emit_byte (mb, CEE_PREFIX1);
6497 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6498 mono_mb_emit_stloc (mb, conv_arg);
6501 /* Need to store the original buffer so we can free it later */
6502 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6503 mono_mb_emit_ldloc (mb, conv_arg);
6504 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6507 /* set the src_ptr */
6508 mono_mb_emit_ldloc (mb, 0);
6509 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6510 mono_mb_emit_stloc (mb, 0);
6513 mono_mb_emit_ldloc (mb, conv_arg);
6514 mono_mb_emit_stloc (mb, 1);
6516 /* emit valuetype conversion code */
6517 emit_struct_conv (mb, klass, FALSE);
6519 mono_mb_patch_branch (mb, pos);
6523 case MARSHAL_ACTION_CONV_OUT:
6524 if (klass == mono_defaults.stringbuilder_class) {
6526 MonoMarshalNative encoding;
6527 MonoMarshalConv conv;
6529 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6530 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6532 g_assert (encoding != -1);
6535 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6539 mono_mb_emit_ldarg (mb, argnum);
6540 mono_mb_emit_ldloc (mb, conv_arg);
6543 case MONO_NATIVE_LPWSTR:
6544 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6546 case MONO_NATIVE_LPSTR:
6547 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6550 g_assert_not_reached ();
6553 mono_mb_emit_byte (mb, CEE_STIND_REF);
6555 mono_mb_emit_ldarg (mb, argnum);
6556 mono_mb_emit_ldloc (mb, conv_arg);
6558 mono_mb_emit_icall (mb, conv_to_icall (conv));
6562 mono_mb_emit_ldloc (mb, conv_arg);
6563 mono_mb_emit_icall (mb, mono_marshal_free);
6568 if (klass->delegate) {
6570 mono_mb_emit_ldarg (mb, argnum);
6571 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6572 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6573 mono_mb_emit_ldloc (mb, conv_arg);
6574 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6575 mono_mb_emit_byte (mb, CEE_STIND_REF);
6580 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6581 /* allocate a new object */
6582 mono_mb_emit_ldarg (mb, argnum);
6583 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6584 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6585 mono_mb_emit_byte (mb, CEE_STIND_REF);
6588 /* dst = *argument */
6589 mono_mb_emit_ldarg (mb, argnum);
6592 mono_mb_emit_byte (mb, CEE_LDIND_I);
6594 mono_mb_emit_stloc (mb, 1);
6596 mono_mb_emit_ldloc (mb, 1);
6597 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6599 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6600 mono_mb_emit_ldloc (mb, 1);
6601 mono_mb_emit_icon (mb, sizeof (MonoObject));
6602 mono_mb_emit_byte (mb, CEE_ADD);
6603 mono_mb_emit_stloc (mb, 1);
6605 /* src = tmp_locals [i] */
6606 mono_mb_emit_ldloc (mb, conv_arg);
6607 mono_mb_emit_stloc (mb, 0);
6609 /* emit valuetype conversion code */
6610 emit_struct_conv (mb, klass, TRUE);
6612 /* Free the structure returned by the native code */
6613 emit_struct_free (mb, klass, conv_arg);
6615 if (m->orig_conv_args [argnum]) {
6617 * If the native function changed the pointer, then free
6618 * the original structure plus the new pointer.
6620 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6621 mono_mb_emit_ldloc (mb, conv_arg);
6622 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6624 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6625 g_assert (m->orig_conv_args [argnum]);
6627 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6630 mono_mb_emit_ldloc (mb, conv_arg);
6631 mono_mb_emit_icall (mb, mono_marshal_free);
6633 mono_mb_patch_branch (mb, pos2);
6637 /* Free the original structure passed to native code */
6638 emit_struct_free (mb, klass, conv_arg);
6640 mono_mb_patch_branch (mb, pos);
6643 case MARSHAL_ACTION_PUSH:
6645 mono_mb_emit_ldloc_addr (mb, conv_arg);
6647 mono_mb_emit_ldloc (mb, conv_arg);
6650 case MARSHAL_ACTION_CONV_RESULT:
6651 if (klass->delegate) {
6652 g_assert (!t->byref);
6653 mono_mb_emit_stloc (mb, 0);
6654 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6655 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6656 mono_mb_emit_ldloc (mb, 0);
6657 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6658 mono_mb_emit_stloc (mb, 3);
6661 mono_mb_emit_stloc (mb, 0);
6663 /* Make a copy since emit_conv modifies local 0 */
6664 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6665 mono_mb_emit_ldloc (mb, 0);
6666 mono_mb_emit_stloc (mb, loc);
6668 mono_mb_emit_byte (mb, CEE_LDNULL);
6669 mono_mb_emit_stloc (mb, 3);
6671 mono_mb_emit_ldloc (mb, 0);
6672 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6674 /* allocate result object */
6676 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6677 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6678 mono_mb_emit_stloc (mb, 3);
6682 mono_mb_emit_ldloc (mb, 3);
6683 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6684 mono_mb_emit_stloc (mb, 1);
6686 /* emit conversion code */
6687 emit_struct_conv (mb, klass, TRUE);
6689 emit_struct_free (mb, klass, loc);
6691 /* Free the pointer allocated by unmanaged code */
6692 mono_mb_emit_ldloc (mb, loc);
6693 mono_mb_emit_icall (mb, mono_marshal_free);
6694 mono_mb_patch_branch (mb, pos);
6698 case MARSHAL_ACTION_MANAGED_CONV_IN:
6699 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6701 if (klass->delegate) {
6702 g_assert (!t->byref);
6703 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6704 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6705 mono_mb_emit_ldarg (mb, argnum);
6706 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6707 mono_mb_emit_stloc (mb, conv_arg);
6711 if (klass == mono_defaults.stringbuilder_class) {
6712 MonoMarshalNative encoding;
6714 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6717 g_assert (encoding == MONO_NATIVE_LPSTR);
6719 g_assert (!t->byref);
6720 g_assert (encoding != -1);
6722 mono_mb_emit_ldarg (mb, argnum);
6723 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6724 mono_mb_emit_stloc (mb, conv_arg);
6728 /* The class can not have an automatic layout */
6729 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6730 mono_mb_emit_auto_layout_exception (mb, klass);
6734 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6735 mono_mb_emit_byte (mb, CEE_LDNULL);
6736 mono_mb_emit_stloc (mb, conv_arg);
6741 mono_mb_emit_ldarg (mb, argnum);
6745 /* Check for NULL and raise an exception */
6746 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6748 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6750 mono_mb_patch_branch (mb, pos2);
6751 mono_mb_emit_ldarg (mb, argnum);
6752 mono_mb_emit_byte (mb, CEE_LDIND_I);
6755 mono_mb_emit_stloc (mb, 0);
6757 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6758 mono_mb_emit_stloc (mb, conv_arg);
6760 mono_mb_emit_ldloc (mb, 0);
6761 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6763 /* Create and set dst */
6764 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6765 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6766 mono_mb_emit_stloc (mb, conv_arg);
6767 mono_mb_emit_ldloc (mb, conv_arg);
6768 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6769 mono_mb_emit_stloc (mb, 1);
6771 /* emit valuetype conversion code */
6772 emit_struct_conv (mb, klass, TRUE);
6774 mono_mb_patch_branch (mb, pos);
6777 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6779 /* Check for null */
6780 mono_mb_emit_ldloc (mb, conv_arg);
6781 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6782 mono_mb_emit_ldarg (mb, argnum);
6783 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6784 mono_mb_emit_byte (mb, CEE_STIND_REF);
6785 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6787 mono_mb_patch_branch (mb, pos);
6790 mono_mb_emit_ldloc (mb, conv_arg);
6791 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6792 mono_mb_emit_stloc (mb, 0);
6794 /* Allocate and set dest */
6795 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6796 mono_mb_emit_byte (mb, CEE_CONV_I);
6797 mono_mb_emit_icall (mb, mono_marshal_alloc);
6798 mono_mb_emit_stloc (mb, 1);
6800 /* Update argument pointer */
6801 mono_mb_emit_ldarg (mb, argnum);
6802 mono_mb_emit_ldloc (mb, 1);
6803 mono_mb_emit_byte (mb, CEE_STIND_I);
6805 /* emit valuetype conversion code */
6806 emit_struct_conv (mb, klass, FALSE);
6808 mono_mb_patch_branch (mb, pos2);
6810 /* byval [Out] marshalling */
6812 /* FIXME: Handle null */
6815 mono_mb_emit_ldloc (mb, conv_arg);
6816 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6817 mono_mb_emit_stloc (mb, 0);
6820 mono_mb_emit_ldarg (mb, argnum);
6821 mono_mb_emit_stloc (mb, 1);
6823 /* emit valuetype conversion code */
6824 emit_struct_conv (mb, klass, FALSE);
6828 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6829 if (klass->delegate) {
6830 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6831 mono_mb_emit_stloc (mb, 3);
6835 /* The class can not have an automatic layout */
6836 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6837 mono_mb_emit_auto_layout_exception (mb, klass);
6841 mono_mb_emit_stloc (mb, 0);
6842 /* Check for null */
6843 mono_mb_emit_ldloc (mb, 0);
6844 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6845 mono_mb_emit_byte (mb, CEE_LDNULL);
6846 mono_mb_emit_stloc (mb, 3);
6847 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6849 mono_mb_patch_branch (mb, pos);
6852 mono_mb_emit_ldloc (mb, 0);
6853 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6854 mono_mb_emit_stloc (mb, 0);
6856 /* Allocate and set dest */
6857 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6858 mono_mb_emit_byte (mb, CEE_CONV_I);
6859 mono_mb_emit_icall (mb, mono_marshal_alloc);
6860 mono_mb_emit_byte (mb, CEE_DUP);
6861 mono_mb_emit_stloc (mb, 1);
6862 mono_mb_emit_stloc (mb, 3);
6864 emit_struct_conv (mb, klass, FALSE);
6866 mono_mb_patch_branch (mb, pos2);
6870 g_assert_not_reached ();
6877 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6878 MonoMarshalSpec *spec,
6879 int conv_arg, MonoType **conv_arg_type,
6880 MarshalAction action)
6882 MonoMethodBuilder *mb = m->mb;
6883 static MonoMethod *get_object_for_native_variant = NULL;
6884 static MonoMethod *get_native_variant_for_object = NULL;
6886 mono_init_com_types ();
6888 if (!get_object_for_native_variant)
6889 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6890 g_assert (get_object_for_native_variant);
6892 if (!get_native_variant_for_object)
6893 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6894 g_assert (get_native_variant_for_object);
6897 case MARSHAL_ACTION_CONV_IN: {
6898 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6901 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6903 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6905 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6908 mono_mb_emit_ldarg (mb, argnum);
6910 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6911 mono_mb_emit_ldloc_addr (mb, conv_arg);
6912 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6916 case MARSHAL_ACTION_CONV_OUT: {
6917 static MonoMethod *variant_clear = NULL;
6920 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6921 g_assert (variant_clear);
6924 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6925 mono_mb_emit_ldarg (mb, argnum);
6926 mono_mb_emit_ldloc_addr (mb, conv_arg);
6927 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6928 mono_mb_emit_byte (mb, CEE_STIND_REF);
6931 mono_mb_emit_ldloc_addr (mb, conv_arg);
6932 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6936 case MARSHAL_ACTION_PUSH:
6938 mono_mb_emit_ldloc_addr (mb, conv_arg);
6940 mono_mb_emit_ldloc (mb, conv_arg);
6943 case MARSHAL_ACTION_CONV_RESULT: {
6944 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6945 mono_mb_emit_exception_marshal_directive (mb, msg);
6949 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6950 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6953 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6955 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6957 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6961 mono_mb_emit_ldarg (mb, argnum);
6963 mono_mb_emit_ldarg_addr (mb, argnum);
6964 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6965 mono_mb_emit_stloc (mb, conv_arg);
6969 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6970 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6971 mono_mb_emit_ldloc (mb, conv_arg);
6972 mono_mb_emit_ldarg (mb, argnum);
6973 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6978 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6979 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6980 mono_mb_emit_exception_marshal_directive (mb, msg);
6985 g_assert_not_reached ();
6992 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6994 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6995 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6997 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6999 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7010 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7011 MonoMarshalSpec *spec,
7012 int conv_arg, MonoType **conv_arg_type,
7013 MarshalAction action)
7015 MonoMethodBuilder *mb = m->mb;
7016 MonoClass *klass = mono_class_from_mono_type (t);
7017 gboolean need_convert, need_free;
7018 MonoMarshalNative encoding;
7020 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7023 case MARSHAL_ACTION_CONV_IN:
7024 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7025 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7027 if (klass->element_class->blittable) {
7028 mono_mb_emit_ldarg (mb, argnum);
7030 mono_mb_emit_byte (mb, CEE_LDIND_I);
7031 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7032 mono_mb_emit_stloc (mb, conv_arg);
7035 guint32 label1, label2, label3;
7036 int index_var, src_var, dest_ptr, esize;
7037 MonoMarshalConv conv;
7038 gboolean is_string = FALSE;
7040 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7042 eklass = klass->element_class;
7044 if (eklass == mono_defaults.string_class) {
7046 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7048 else if (eklass == mono_defaults.stringbuilder_class) {
7050 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7055 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7056 mono_mb_emit_ldarg (mb, argnum);
7058 mono_mb_emit_byte (mb, CEE_LDIND_I);
7059 mono_mb_emit_stloc (mb, src_var);
7062 mono_mb_emit_ldloc (mb, src_var);
7063 mono_mb_emit_stloc (mb, conv_arg);
7064 mono_mb_emit_ldloc (mb, src_var);
7065 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7069 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7070 MonoException *exc = mono_get_exception_not_implemented (msg);
7071 g_warning ("%s", msg);
7073 mono_raise_exception (exc);
7078 esize = sizeof (gpointer);
7079 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7080 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7082 esize = mono_class_native_size (eklass, NULL);
7084 /* allocate space for the native struct and store the address */
7085 mono_mb_emit_icon (mb, esize);
7086 mono_mb_emit_ldloc (mb, src_var);
7087 mono_mb_emit_byte (mb, CEE_LDLEN);
7089 if (eklass == mono_defaults.string_class) {
7090 /* Make the array bigger for the terminating null */
7091 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7092 mono_mb_emit_byte (mb, CEE_ADD);
7094 mono_mb_emit_byte (mb, CEE_MUL);
7095 mono_mb_emit_byte (mb, CEE_PREFIX1);
7096 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7097 mono_mb_emit_stloc (mb, conv_arg);
7099 mono_mb_emit_ldloc (mb, conv_arg);
7100 mono_mb_emit_stloc (mb, dest_ptr);
7102 /* Emit marshalling loop */
7103 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7104 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7105 mono_mb_emit_stloc (mb, index_var);
7106 label2 = mono_mb_get_label (mb);
7107 mono_mb_emit_ldloc (mb, index_var);
7108 mono_mb_emit_ldloc (mb, src_var);
7109 mono_mb_emit_byte (mb, CEE_LDLEN);
7110 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7112 /* Emit marshalling code */
7115 mono_mb_emit_ldloc (mb, dest_ptr);
7116 mono_mb_emit_ldloc (mb, src_var);
7117 mono_mb_emit_ldloc (mb, index_var);
7118 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7119 mono_mb_emit_icall (mb, conv_to_icall (conv));
7120 mono_mb_emit_byte (mb, CEE_STIND_I);
7122 /* set the src_ptr */
7123 mono_mb_emit_ldloc (mb, src_var);
7124 mono_mb_emit_ldloc (mb, index_var);
7125 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7126 mono_mb_emit_stloc (mb, 0);
7129 mono_mb_emit_ldloc (mb, dest_ptr);
7130 mono_mb_emit_stloc (mb, 1);
7132 /* emit valuetype conversion code */
7133 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7136 mono_mb_emit_add_to_local (mb, index_var, 1);
7137 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7139 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7141 mono_mb_patch_branch (mb, label3);
7143 if (eklass == mono_defaults.string_class) {
7144 /* Null terminate */
7145 mono_mb_emit_ldloc (mb, dest_ptr);
7146 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7147 mono_mb_emit_byte (mb, CEE_STIND_REF);
7150 mono_mb_patch_branch (mb, label1);
7155 case MARSHAL_ACTION_CONV_OUT:
7156 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7157 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);
7158 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7161 if (need_convert || need_free) {
7162 /* FIXME: Optimize blittable case */
7164 guint32 label1, label2, label3;
7165 int index_var, src_ptr, loc, esize;
7167 eklass = klass->element_class;
7168 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7169 esize = sizeof (gpointer);
7170 else if (eklass == mono_defaults.char_class)
7171 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7173 esize = mono_class_native_size (eklass, NULL);
7174 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7175 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7178 mono_mb_emit_ldarg (mb, argnum);
7180 mono_mb_emit_byte (mb, CEE_LDIND_I);
7181 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7183 mono_mb_emit_ldloc (mb, conv_arg);
7184 mono_mb_emit_stloc (mb, src_ptr);
7186 /* Emit marshalling loop */
7187 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7188 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7189 mono_mb_emit_stloc (mb, index_var);
7190 label2 = mono_mb_get_label (mb);
7191 mono_mb_emit_ldloc (mb, index_var);
7192 mono_mb_emit_ldarg (mb, argnum);
7194 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7195 mono_mb_emit_byte (mb, CEE_LDLEN);
7196 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7198 /* Emit marshalling code */
7200 if (eklass == mono_defaults.stringbuilder_class) {
7201 gboolean need_free2;
7202 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7204 g_assert (conv != -1);
7207 mono_mb_emit_ldarg (mb, argnum);
7209 mono_mb_emit_byte (mb, CEE_LDIND_I);
7210 mono_mb_emit_ldloc (mb, index_var);
7211 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7214 mono_mb_emit_ldloc (mb, src_ptr);
7215 mono_mb_emit_byte (mb, CEE_LDIND_I);
7217 mono_mb_emit_icall (mb, conv_to_icall (conv));
7221 mono_mb_emit_ldloc (mb, src_ptr);
7222 mono_mb_emit_byte (mb, CEE_LDIND_I);
7224 mono_mb_emit_icall (mb, mono_marshal_free);
7227 else if (eklass == mono_defaults.string_class) {
7230 mono_mb_emit_ldloc (mb, src_ptr);
7231 mono_mb_emit_byte (mb, CEE_LDIND_I);
7233 mono_mb_emit_icall (mb, mono_marshal_free);
7238 /* set the src_ptr */
7239 mono_mb_emit_ldloc (mb, src_ptr);
7240 mono_mb_emit_stloc (mb, 0);
7243 mono_mb_emit_ldarg (mb, argnum);
7245 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7246 mono_mb_emit_ldloc (mb, index_var);
7247 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7248 mono_mb_emit_stloc (mb, 1);
7250 /* emit valuetype conversion code */
7251 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7255 mono_mb_emit_ldloc (mb, src_ptr);
7256 mono_mb_emit_stloc (mb, loc);
7257 mono_mb_emit_ldloc (mb, loc);
7259 emit_struct_free (mb, eklass, loc);
7263 mono_mb_emit_add_to_local (mb, index_var, 1);
7264 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7266 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7268 mono_mb_patch_branch (mb, label1);
7269 mono_mb_patch_branch (mb, label3);
7272 if (klass->element_class->blittable) {
7273 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7275 mono_mb_emit_ldarg (mb, argnum);
7276 mono_mb_emit_ldloc (mb, conv_arg);
7277 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7282 case MARSHAL_ACTION_PUSH:
7284 mono_mb_emit_ldloc_addr (mb, conv_arg);
7286 mono_mb_emit_ldloc (mb, conv_arg);
7289 case MARSHAL_ACTION_CONV_RESULT:
7290 /* fixme: we need conversions here */
7291 mono_mb_emit_stloc (mb, 3);
7294 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7296 guint32 label1, label2, label3;
7297 int index_var, src_ptr, loc, esize, param_num, num_elem;
7298 MonoMarshalConv conv;
7299 gboolean is_string = FALSE;
7301 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7302 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7305 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7306 mono_mb_emit_exception_marshal_directive (mb, msg);
7310 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7311 mono_mb_emit_exception_marshal_directive (mb, msg);
7314 if (spec->native != MONO_NATIVE_LPARRAY) {
7315 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7316 mono_mb_emit_exception_marshal_directive (mb, msg);
7320 /* FIXME: t is from the method which is wrapped, not the delegate type */
7321 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7323 param_num = spec->data.array_data.param_num;
7324 num_elem = spec->data.array_data.num_elem;
7325 if (spec->data.array_data.elem_mult == 0)
7326 /* param_num is not specified */
7329 if (param_num == -1) {
7330 if (num_elem <= 0) {
7331 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7332 mono_mb_emit_exception_marshal_directive (mb, msg);
7337 /* FIXME: Optimize blittable case */
7339 eklass = klass->element_class;
7340 if (eklass == mono_defaults.string_class) {
7342 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7344 else if (eklass == mono_defaults.stringbuilder_class) {
7346 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7351 mono_marshal_load_type_info (eklass);
7354 esize = sizeof (gpointer);
7356 esize = mono_class_native_size (eklass, NULL);
7357 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7358 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7360 mono_mb_emit_byte (mb, CEE_LDNULL);
7361 mono_mb_emit_stloc (mb, conv_arg);
7363 /* Check param index */
7364 if (param_num != -1) {
7365 if (param_num >= m->sig->param_count) {
7366 char *msg = g_strdup ("Array size control parameter index is out of range.");
7367 mono_mb_emit_exception_marshal_directive (mb, msg);
7370 switch (m->sig->params [param_num]->type) {
7383 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7384 mono_mb_emit_exception_marshal_directive (mb, msg);
7391 mono_mb_emit_ldarg (mb, argnum);
7392 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7394 mono_mb_emit_ldarg (mb, argnum);
7395 mono_mb_emit_stloc (mb, src_ptr);
7397 /* Create managed array */
7399 * The LPArray marshalling spec says that sometimes param_num starts
7400 * from 1, sometimes it starts from 0. But MS seems to allways start
7404 if (param_num == -1) {
7405 mono_mb_emit_icon (mb, num_elem);
7407 mono_mb_emit_ldarg (mb, param_num);
7409 mono_mb_emit_icon (mb, num_elem);
7410 mono_mb_emit_byte (mb, CEE_ADD);
7412 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7415 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7416 mono_mb_emit_stloc (mb, conv_arg);
7418 if (eklass->blittable) {
7419 mono_mb_emit_ldloc (mb, conv_arg);
7420 mono_mb_emit_byte (mb, CEE_CONV_I);
7421 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7422 mono_mb_emit_byte (mb, CEE_ADD);
7423 mono_mb_emit_ldarg (mb, argnum);
7424 mono_mb_emit_ldloc (mb, conv_arg);
7425 mono_mb_emit_byte (mb, CEE_LDLEN);
7426 mono_mb_emit_icon (mb, esize);
7427 mono_mb_emit_byte (mb, CEE_MUL);
7428 mono_mb_emit_byte (mb, CEE_PREFIX1);
7429 mono_mb_emit_byte (mb, CEE_CPBLK);
7433 /* Emit marshalling loop */
7434 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7435 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7436 mono_mb_emit_stloc (mb, index_var);
7437 label2 = mono_mb_get_label (mb);
7438 mono_mb_emit_ldloc (mb, index_var);
7439 mono_mb_emit_ldloc (mb, conv_arg);
7440 mono_mb_emit_byte (mb, CEE_LDLEN);
7441 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7443 /* Emit marshalling code */
7445 g_assert (conv != -1);
7447 mono_mb_emit_ldloc (mb, conv_arg);
7448 mono_mb_emit_ldloc (mb, index_var);
7450 mono_mb_emit_ldloc (mb, src_ptr);
7451 mono_mb_emit_byte (mb, CEE_LDIND_I);
7453 mono_mb_emit_icall (mb, conv_to_icall (conv));
7454 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7457 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7458 mono_mb_emit_exception_marshal_directive (mb, msg);
7462 mono_mb_emit_add_to_local (mb, index_var, 1);
7463 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7465 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7467 mono_mb_patch_branch (mb, label1);
7468 mono_mb_patch_branch (mb, label3);
7472 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7474 guint32 label1, label2, label3;
7475 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7476 MonoMarshalConv conv;
7477 gboolean is_string = FALSE;
7480 /* Already handled in CONV_IN */
7483 /* These are already checked in CONV_IN */
7484 g_assert (!t->byref);
7485 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7486 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7488 param_num = spec->data.array_data.param_num;
7489 num_elem = spec->data.array_data.num_elem;
7491 if (spec->data.array_data.elem_mult == 0)
7492 /* param_num is not specified */
7495 if (param_num == -1) {
7496 if (num_elem <= 0) {
7497 g_assert_not_reached ();
7501 /* FIXME: Optimize blittable case */
7503 eklass = klass->element_class;
7504 if (eklass == mono_defaults.string_class) {
7506 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7508 else if (eklass == mono_defaults.stringbuilder_class) {
7510 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7515 mono_marshal_load_type_info (eklass);
7518 esize = sizeof (gpointer);
7520 esize = mono_class_native_size (eklass, NULL);
7522 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7523 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7526 mono_mb_emit_ldloc (mb, conv_arg);
7527 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7529 mono_mb_emit_ldarg (mb, argnum);
7530 mono_mb_emit_stloc (mb, dest_ptr);
7532 if (eklass->blittable) {
7534 mono_mb_emit_ldarg (mb, argnum);
7536 mono_mb_emit_ldloc (mb, conv_arg);
7537 mono_mb_emit_byte (mb, CEE_CONV_I);
7538 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7539 mono_mb_emit_byte (mb, CEE_ADD);
7541 mono_mb_emit_ldloc (mb, conv_arg);
7542 mono_mb_emit_byte (mb, CEE_LDLEN);
7543 mono_mb_emit_icon (mb, esize);
7544 mono_mb_emit_byte (mb, CEE_MUL);
7545 mono_mb_emit_byte (mb, CEE_PREFIX1);
7546 mono_mb_emit_byte (mb, CEE_CPBLK);
7550 /* Emit marshalling loop */
7551 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7552 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7553 mono_mb_emit_stloc (mb, index_var);
7554 label2 = mono_mb_get_label (mb);
7555 mono_mb_emit_ldloc (mb, index_var);
7556 mono_mb_emit_ldloc (mb, conv_arg);
7557 mono_mb_emit_byte (mb, CEE_LDLEN);
7558 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7560 /* Emit marshalling code */
7562 g_assert (conv != -1);
7565 mono_mb_emit_ldloc (mb, dest_ptr);
7568 mono_mb_emit_ldloc (mb, conv_arg);
7569 mono_mb_emit_ldloc (mb, index_var);
7571 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7573 mono_mb_emit_icall (mb, conv_to_icall (conv));
7574 mono_mb_emit_byte (mb, CEE_STIND_I);
7577 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7578 mono_mb_emit_exception_marshal_directive (mb, msg);
7582 mono_mb_emit_add_to_local (mb, index_var, 1);
7583 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7585 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7587 mono_mb_patch_branch (mb, label1);
7588 mono_mb_patch_branch (mb, label3);
7592 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7594 guint32 label1, label2, label3;
7595 int index_var, src, dest, esize;
7596 MonoMarshalConv conv = -1;
7597 gboolean is_string = FALSE;
7599 g_assert (!t->byref);
7601 eklass = klass->element_class;
7603 mono_marshal_load_type_info (eklass);
7605 if (eklass == mono_defaults.string_class) {
7607 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7610 g_assert_not_reached ();
7614 esize = sizeof (gpointer);
7615 else if (eklass == mono_defaults.char_class)
7616 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7618 esize = mono_class_native_size (eklass, NULL);
7620 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7621 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7623 mono_mb_emit_stloc (mb, src);
7624 mono_mb_emit_ldloc (mb, src);
7625 mono_mb_emit_stloc (mb, 3);
7627 /* Check for null */
7628 mono_mb_emit_ldloc (mb, src);
7629 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7631 /* Allocate native array */
7632 mono_mb_emit_icon (mb, esize);
7633 mono_mb_emit_ldloc (mb, src);
7634 mono_mb_emit_byte (mb, CEE_LDLEN);
7636 if (eklass == mono_defaults.string_class) {
7637 /* Make the array bigger for the terminating null */
7638 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7639 mono_mb_emit_byte (mb, CEE_ADD);
7641 mono_mb_emit_byte (mb, CEE_MUL);
7642 mono_mb_emit_icall (mb, mono_marshal_alloc);
7643 mono_mb_emit_stloc (mb, dest);
7644 mono_mb_emit_ldloc (mb, dest);
7645 mono_mb_emit_stloc (mb, 3);
7647 /* Emit marshalling loop */
7648 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7649 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7650 mono_mb_emit_stloc (mb, index_var);
7651 label2 = mono_mb_get_label (mb);
7652 mono_mb_emit_ldloc (mb, index_var);
7653 mono_mb_emit_ldloc (mb, src);
7654 mono_mb_emit_byte (mb, CEE_LDLEN);
7655 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7657 /* Emit marshalling code */
7659 g_assert (conv != -1);
7662 mono_mb_emit_ldloc (mb, dest);
7665 mono_mb_emit_ldloc (mb, src);
7666 mono_mb_emit_ldloc (mb, index_var);
7668 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7670 mono_mb_emit_icall (mb, conv_to_icall (conv));
7671 mono_mb_emit_byte (mb, CEE_STIND_I);
7674 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7675 mono_mb_emit_exception_marshal_directive (mb, msg);
7679 mono_mb_emit_add_to_local (mb, index_var, 1);
7680 mono_mb_emit_add_to_local (mb, dest, esize);
7682 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7684 mono_mb_patch_branch (mb, label3);
7685 mono_mb_patch_branch (mb, label1);
7689 g_assert_not_reached ();
7696 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7697 MonoMarshalSpec *spec,
7698 int conv_arg, MonoType **conv_arg_type,
7699 MarshalAction action)
7701 MonoMethodBuilder *mb = m->mb;
7704 case MARSHAL_ACTION_CONV_IN: {
7705 MonoType *local_type;
7707 guint8 ldc_op = CEE_LDC_I4_1;
7710 local_type = &mono_defaults.int32_class->byval_arg;
7712 switch (spec->native) {
7713 case MONO_NATIVE_I1:
7714 case MONO_NATIVE_U1:
7715 local_type = &mono_defaults.byte_class->byval_arg;
7717 case MONO_NATIVE_VARIANTBOOL:
7718 local_type = &mono_defaults.int16_class->byval_arg;
7719 ldc_op = CEE_LDC_I4_M1;
7721 case MONO_NATIVE_BOOLEAN:
7722 local_type = &mono_defaults.int32_class->byval_arg;
7725 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7726 local_type = &mono_defaults.int32_class->byval_arg;
7731 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7733 *conv_arg_type = local_type;
7734 conv_arg = mono_mb_add_local (mb, local_type);
7736 mono_mb_emit_ldarg (mb, argnum);
7738 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7739 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7740 mono_mb_emit_byte (mb, ldc_op);
7741 mono_mb_emit_stloc (mb, conv_arg);
7742 mono_mb_patch_branch (mb, label_false);
7747 case MARSHAL_ACTION_CONV_OUT:
7749 int label_false, label_end;
7753 mono_mb_emit_ldarg (mb, argnum);
7754 mono_mb_emit_ldloc (mb, conv_arg);
7756 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7757 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7759 label_end = mono_mb_emit_branch (mb, CEE_BR);
7760 mono_mb_patch_branch (mb, label_false);
7761 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7762 mono_mb_patch_branch (mb, label_end);
7764 mono_mb_emit_byte (mb, CEE_STIND_I1);
7768 case MARSHAL_ACTION_PUSH:
7770 mono_mb_emit_ldloc_addr (mb, conv_arg);
7772 mono_mb_emit_ldloc (mb, conv_arg);
7774 mono_mb_emit_ldarg (mb, argnum);
7777 case MARSHAL_ACTION_CONV_RESULT:
7778 /* maybe we need to make sure that it fits within 8 bits */
7779 mono_mb_emit_stloc (mb, 3);
7782 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7783 MonoClass* conv_arg_class = mono_defaults.int32_class;
7784 guint8 ldop = CEE_LDIND_I4;
7785 int label_null, label_false;
7787 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7790 switch (spec->native) {
7791 case MONO_NATIVE_I1:
7792 case MONO_NATIVE_U1:
7793 conv_arg_class = mono_defaults.byte_class;
7794 ldop = CEE_LDIND_I1;
7796 case MONO_NATIVE_VARIANTBOOL:
7797 conv_arg_class = mono_defaults.int16_class;
7798 ldop = CEE_LDIND_I2;
7800 case MONO_NATIVE_BOOLEAN:
7803 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7808 *conv_arg_type = &conv_arg_class->this_arg;
7810 *conv_arg_type = &conv_arg_class->byval_arg;
7813 mono_mb_emit_ldarg (mb, argnum);
7817 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7818 mono_mb_emit_ldarg (mb, argnum);
7819 mono_mb_emit_byte (mb, ldop);
7823 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7824 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7825 mono_mb_emit_stloc (mb, conv_arg);
7826 mono_mb_patch_branch (mb, label_false);
7829 mono_mb_patch_branch (mb, label_null);
7833 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7834 guint8 stop = CEE_STIND_I4;
7835 guint8 ldc_op = CEE_LDC_I4_1;
7836 int label_null,label_false, label_end;;
7841 switch (spec->native) {
7842 case MONO_NATIVE_I1:
7843 case MONO_NATIVE_U1:
7844 stop = CEE_STIND_I1;
7846 case MONO_NATIVE_VARIANTBOOL:
7847 stop = CEE_STIND_I2;
7848 ldc_op = CEE_LDC_I4_M1;
7856 mono_mb_emit_ldarg (mb, argnum);
7857 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7859 mono_mb_emit_ldarg (mb, argnum);
7860 mono_mb_emit_ldloc (mb, conv_arg);
7862 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7863 mono_mb_emit_byte (mb, ldc_op);
7864 label_end = mono_mb_emit_branch (mb, CEE_BR);
7866 mono_mb_patch_branch (mb, label_false);
7867 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7868 mono_mb_patch_branch (mb, label_end);
7870 mono_mb_emit_byte (mb, stop);
7871 mono_mb_patch_branch (mb, label_null);
7876 g_assert_not_reached ();
7883 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7884 MonoMarshalSpec *spec, int conv_arg,
7885 MonoType **conv_arg_type, MarshalAction action)
7887 MonoMethodBuilder *mb = m->mb;
7890 case MARSHAL_ACTION_CONV_IN:
7891 /* MS seems to allow this in some cases, ie. bxc #158 */
7893 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7894 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7895 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7900 case MARSHAL_ACTION_PUSH:
7901 mono_mb_emit_ldarg (mb, argnum);
7904 case MARSHAL_ACTION_CONV_RESULT:
7905 /* no conversions necessary */
7906 mono_mb_emit_stloc (mb, 3);
7917 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7918 MonoMarshalSpec *spec, int conv_arg,
7919 MonoType **conv_arg_type, MarshalAction action)
7921 MonoMethodBuilder *mb = m->mb;
7924 case MARSHAL_ACTION_PUSH:
7925 /* fixme: dont know how to marshal that. We cant simply
7926 * convert it to a one byte UTF8 character, because an
7927 * unicode character may need more that one byte in UTF8 */
7928 mono_mb_emit_ldarg (mb, argnum);
7931 case MARSHAL_ACTION_CONV_RESULT:
7932 /* fixme: we need conversions here */
7933 mono_mb_emit_stloc (mb, 3);
7944 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7945 MonoMarshalSpec *spec, int conv_arg,
7946 MonoType **conv_arg_type, MarshalAction action)
7948 MonoMethodBuilder *mb = m->mb;
7951 case MARSHAL_ACTION_PUSH:
7952 mono_mb_emit_ldarg (mb, argnum);
7955 case MARSHAL_ACTION_CONV_RESULT:
7956 /* no conversions necessary */
7957 mono_mb_emit_stloc (mb, 3);
7968 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7969 MonoMarshalSpec *spec, int conv_arg,
7970 MonoType **conv_arg_type, MarshalAction action)
7972 /* Ensure that we have marshalling info for this param */
7973 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7975 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7976 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7978 if (spec && spec->native == MONO_NATIVE_ASANY)
7979 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7982 case MONO_TYPE_VALUETYPE:
7983 if (t->data.klass == mono_defaults.handleref_class)
7984 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7986 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7987 case MONO_TYPE_STRING:
7988 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7989 case MONO_TYPE_CLASS:
7990 case MONO_TYPE_OBJECT:
7991 if (spec && spec->native == MONO_NATIVE_STRUCT)
7992 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7995 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7996 spec->native == MONO_NATIVE_IDISPATCH ||
7997 spec->native == MONO_NATIVE_INTERFACE))
7998 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7999 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
8000 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
8001 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
8002 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8005 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
8006 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8007 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8009 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8010 case MONO_TYPE_ARRAY:
8011 case MONO_TYPE_SZARRAY:
8012 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8013 case MONO_TYPE_BOOLEAN:
8014 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8016 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8017 case MONO_TYPE_CHAR:
8018 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8031 case MONO_TYPE_FNPTR:
8032 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8033 case MONO_TYPE_GENERICINST:
8034 if (mono_type_generic_inst_is_valuetype (t))
8035 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8037 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8044 * mono_marshal_emit_native_wrapper:
8045 * @image: the image to use for looking up custom marshallers
8046 * @sig: The signature of the native function
8047 * @piinfo: Marshalling information
8048 * @mspecs: Marshalling information
8049 * @aot: whenever the created method will be compiled by the AOT compiler
8050 * @method: if non-NULL, the pinvoke method to call
8051 * @check_exceptions: Whenever to check for pending exceptions after the native call
8053 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8056 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8058 EmitMarshalContext m;
8059 MonoMethodSignature *csig;
8061 int i, argnum, *tmp_locals;
8063 static MonoMethodSignature *get_last_error_sig = NULL;
8068 /* we copy the signature, so that we can set pinvoke to 0 */
8069 csig = signature_dup (mb->method->klass->image, sig);
8074 /* we allocate local for use with emit_struct_conv() */
8075 /* allocate local 0 (pointer) src_ptr */
8076 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8077 /* allocate local 1 (pointer) dst_ptr */
8078 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8079 /* allocate local 2 (boolean) delete_old */
8080 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8082 /* delete_old = FALSE */
8083 mono_mb_emit_icon (mb, 0);
8084 mono_mb_emit_stloc (mb, 2);
8086 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8087 /* allocate local 3 to store the return value */
8088 mono_mb_add_local (mb, sig->ret);
8091 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8092 /* Return type custom marshaling */
8094 * Since we can't determine the return type of the unmanaged function,
8095 * we assume it returns a pointer, and pass that pointer to
8096 * MarshalNativeToManaged.
8098 csig->ret = &mono_defaults.int_class->byval_arg;
8101 /* we first do all conversions */
8102 tmp_locals = alloca (sizeof (int) * sig->param_count);
8103 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8105 for (i = 0; i < sig->param_count; i ++) {
8106 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8109 /* push all arguments */
8112 mono_mb_emit_byte (mb, CEE_LDARG_0);
8114 for (i = 0; i < sig->param_count; i++) {
8115 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8118 /* call the native method */
8119 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8121 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8123 g_assert_not_reached ();
8128 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8129 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8130 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8131 mono_mb_emit_calli (mb, csig);
8133 mono_mb_emit_native_call (mb, csig, func);
8137 /* Set LastError if needed */
8138 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8139 if (!get_last_error_sig) {
8140 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8141 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8142 get_last_error_sig->pinvoke = 1;
8147 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8148 * clobber its value.
8150 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8151 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8153 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8157 /* convert the result */
8158 if (!sig->ret->byref) {
8159 MonoMarshalSpec *spec = mspecs [0];
8160 type = sig->ret->type;
8162 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8163 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8168 case MONO_TYPE_VOID:
8170 case MONO_TYPE_VALUETYPE:
8171 klass = sig->ret->data.klass;
8172 if (klass->enumtype) {
8173 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8176 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8190 case MONO_TYPE_FNPTR:
8191 case MONO_TYPE_STRING:
8192 case MONO_TYPE_CLASS:
8193 case MONO_TYPE_OBJECT:
8194 case MONO_TYPE_BOOLEAN:
8195 case MONO_TYPE_ARRAY:
8196 case MONO_TYPE_SZARRAY:
8197 case MONO_TYPE_CHAR:
8199 case MONO_TYPE_GENERICINST:
8200 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8202 case MONO_TYPE_TYPEDBYREF:
8204 g_warning ("return type 0x%02x unknown", sig->ret->type);
8205 g_assert_not_reached ();
8209 mono_mb_emit_stloc (mb, 3);
8213 * Need to call this after converting the result since MONO_VTADDR needs
8214 * to be adjacent to the call instruction.
8216 if (check_exceptions)
8217 emit_thread_interrupt_checkpoint (mb);
8219 /* we need to convert byref arguments back and free string arrays */
8220 for (i = 0; i < sig->param_count; i++) {
8221 MonoType *t = sig->params [i];
8222 MonoMarshalSpec *spec = mspecs [i + 1];
8224 argnum = i + sig->hasthis;
8226 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8227 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8232 case MONO_TYPE_STRING:
8233 case MONO_TYPE_VALUETYPE:
8234 case MONO_TYPE_CLASS:
8235 case MONO_TYPE_OBJECT:
8236 case MONO_TYPE_SZARRAY:
8237 case MONO_TYPE_BOOLEAN:
8238 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8243 if (!MONO_TYPE_IS_VOID(sig->ret))
8244 mono_mb_emit_ldloc (mb, 3);
8246 mono_mb_emit_byte (mb, CEE_RET);
8249 G_GNUC_UNUSED static void
8250 code_for (MonoMethod *method) {
8251 MonoMethodHeader *header = mono_method_get_header (method);
8252 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));
8256 * mono_marshal_get_native_wrapper:
8257 * @method: The MonoMethod to wrap.
8258 * @check_exceptions: Whenever to check for pending exceptions
8260 * generates IL code for the pinvoke wrapper (the generated method
8261 * calls the unmanaged code in piinfo->addr)
8264 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8266 MonoMethodSignature *sig, *csig;
8267 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8268 MonoMethodBuilder *mb;
8269 MonoMarshalSpec **mspecs;
8272 gboolean pinvoke = FALSE;
8275 const char *exc_class = "MissingMethodException";
8276 const char *exc_arg = NULL;
8278 g_assert (method != NULL);
8279 g_assert (mono_method_signature (method)->pinvoke);
8282 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8284 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8285 if ((res = mono_marshal_find_in_cache (cache, method)))
8288 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8290 return mono_cominterop_get_native_wrapper (method);
8292 g_assert_not_reached ();
8296 sig = mono_method_signature (method);
8298 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8299 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8302 if (!piinfo->addr) {
8304 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8305 exc_arg = "Method contains unsupported native code";
8307 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8309 piinfo->addr = mono_lookup_internal_call (method);
8312 /* hack - redirect certain string constructors to CreateString */
8313 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8314 g_assert (!pinvoke);
8315 g_assert (method->string_ctor);
8316 g_assert (sig->hasthis);
8318 /* CreateString returns a value */
8319 csig = signature_dup (method->klass->image, sig);
8320 csig->ret = &mono_defaults.string_class->byval_arg;
8324 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8325 if (!strcmp ("CreateString", res->name) &&
8326 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8328 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8329 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8331 /* create a wrapper to preserve .ctor in stack trace */
8332 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8334 mono_mb_emit_byte (mb, CEE_LDARG_0);
8335 for (i = 1; i <= csig->param_count; i++)
8336 mono_mb_emit_ldarg (mb, i);
8337 mono_mb_emit_managed_call (mb, res, NULL);
8338 mono_mb_emit_byte (mb, CEE_RET);
8340 /* use native_wrapper_cache because internal calls are looked up there */
8341 res = mono_mb_create_and_cache (cache, method,
8342 mb, csig, csig->param_count + 1);
8350 /* exception will be thrown */
8351 piinfo->addr = NULL;
8352 g_warning ("cannot find CreateString for .ctor");
8355 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8357 mb->method->save_lmf = 1;
8360 * In AOT mode and embedding scenarios, it is possible that the icall is not
8361 * registered in the runtime doing the AOT compilation.
8363 if (!piinfo->addr && !aot) {
8364 mono_mb_emit_exception (mb, exc_class, exc_arg);
8365 csig = signature_dup (method->klass->image, sig);
8367 res = mono_mb_create_and_cache (cache, method,
8368 mb, csig, csig->param_count + 16);
8373 /* internal calls: we simply push all arguments and call the method (no conversions) */
8374 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8376 csig = signature_dup_add_this (sig, method->klass);
8378 csig = signature_dup (method->klass->image, sig);
8380 /* hack - string constructors returns a value */
8381 if (method->string_ctor)
8382 csig->ret = &mono_defaults.string_class->byval_arg;
8388 * Add a null check since public icalls can be called with 'call' which
8389 * does no such check.
8391 mono_mb_emit_byte (mb, CEE_LDARG_0);
8392 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8393 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8394 mono_mb_patch_branch (mb, pos);
8396 mono_mb_emit_byte (mb, CEE_LDARG_0);
8399 for (i = 0; i < sig->param_count; i++)
8400 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8403 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8404 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8405 mono_mb_emit_calli (mb, csig);
8407 g_assert (piinfo->addr);
8408 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8410 if (check_exceptions)
8411 emit_thread_interrupt_checkpoint (mb);
8412 mono_mb_emit_byte (mb, CEE_RET);
8414 csig = signature_dup (method->klass->image, csig);
8416 res = mono_mb_create_and_cache (cache, method,
8417 mb, csig, csig->param_count + 16);
8424 g_assert (piinfo->addr);
8426 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8427 mono_method_get_marshal_info (method, mspecs);
8429 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8431 csig = signature_dup (method->klass->image, sig);
8433 res = mono_mb_create_and_cache (cache, method,
8434 mb, csig, csig->param_count + 16);
8437 for (i = sig->param_count; i >= 0; i--)
8439 mono_metadata_free_marshal_spec (mspecs [i]);
8442 /* code_for (res); */
8448 * mono_marshal_get_native_func_wrapper:
8449 * @image: The image to use for memory allocation and for looking up custom marshallers.
8450 * @sig: The signature of the function
8451 * @func: The native function to wrap
8453 * Returns a wrapper method around native functions, similar to the pinvoke
8457 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8458 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8460 MonoMethodSignature *csig;
8462 MonoMethodBuilder *mb;
8467 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8468 if ((res = mono_marshal_find_in_cache (cache, func)))
8471 name = g_strdup_printf ("wrapper_native_%p", func);
8472 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8473 mb->method->save_lmf = 1;
8475 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8477 csig = signature_dup (image, sig);
8479 res = mono_mb_create_and_cache (cache, func,
8480 mb, csig, csig->param_count + 16);
8483 mono_marshal_set_wrapper_info (res, NULL);
8485 /* code_for (res); */
8491 * mono_marshal_emit_managed_wrapper:
8493 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8494 * the delegate which wraps the managed method to be called. For closed delegates,
8495 * it could have fewer parameters than the method it wraps.
8496 * THIS_LOC is the memory location where the target of the delegate is stored.
8499 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8501 MonoMethodSignature *sig, *csig;
8503 gboolean closed = FALSE;
8508 /* allocate local 0 (pointer) src_ptr */
8509 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8510 /* allocate local 1 (pointer) dst_ptr */
8511 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8512 /* allocate local 2 (boolean) delete_old */
8513 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8515 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8516 /* Closed delegate */
8517 g_assert (sig->param_count == invoke_sig->param_count + 1);
8519 /* Use a new signature without the first argument */
8520 sig = mono_metadata_signature_dup (sig);
8521 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8522 sig->param_count --;
8525 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8526 /* allocate local 3 to store the return value */
8527 mono_mb_add_local (mb, sig->ret);
8530 mono_mb_emit_icon (mb, 0);
8531 mono_mb_emit_stloc (mb, 2);
8533 /* we first do all conversions */
8534 tmp_locals = alloca (sizeof (int) * sig->param_count);
8535 for (i = 0; i < sig->param_count; i ++) {
8536 MonoType *t = sig->params [i];
8539 case MONO_TYPE_OBJECT:
8540 case MONO_TYPE_CLASS:
8541 case MONO_TYPE_VALUETYPE:
8542 case MONO_TYPE_ARRAY:
8543 case MONO_TYPE_SZARRAY:
8544 case MONO_TYPE_STRING:
8545 case MONO_TYPE_BOOLEAN:
8546 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8555 emit_thread_interrupt_checkpoint (mb);
8558 if (target_handle) {
8559 mono_mb_emit_icon (mb, (gint32)target_handle);
8560 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8563 g_assert_not_reached ();
8565 } else if (closed) {
8566 mono_mb_emit_icon (mb, (gint32)target_handle);
8567 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8570 for (i = 0; i < sig->param_count; i++) {
8571 MonoType *t = sig->params [i];
8573 if (tmp_locals [i]) {
8575 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8577 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8580 mono_mb_emit_ldarg (mb, i);
8583 mono_mb_emit_managed_call (mb, method, NULL);
8585 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8586 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8587 } else if (!sig->ret->byref) {
8588 switch (sig->ret->type) {
8589 case MONO_TYPE_VOID:
8591 case MONO_TYPE_BOOLEAN:
8594 case MONO_TYPE_CHAR:
8606 case MONO_TYPE_OBJECT:
8607 mono_mb_emit_stloc (mb, 3);
8609 case MONO_TYPE_STRING:
8610 csig->ret = &mono_defaults.int_class->byval_arg;
8611 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8613 case MONO_TYPE_VALUETYPE:
8614 case MONO_TYPE_CLASS:
8615 case MONO_TYPE_SZARRAY:
8616 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8619 g_warning ("return type 0x%02x unknown", sig->ret->type);
8620 g_assert_not_reached ();
8623 mono_mb_emit_stloc (mb, 3);
8626 /* Convert byref arguments back */
8627 for (i = 0; i < sig->param_count; i ++) {
8628 MonoType *t = sig->params [i];
8629 MonoMarshalSpec *spec = mspecs [i + 1];
8631 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8632 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8634 else if (t->byref) {
8636 case MONO_TYPE_CLASS:
8637 case MONO_TYPE_VALUETYPE:
8638 case MONO_TYPE_OBJECT:
8639 case MONO_TYPE_STRING:
8640 case MONO_TYPE_BOOLEAN:
8641 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8645 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8646 /* The [Out] information is encoded in the delegate signature */
8648 case MONO_TYPE_SZARRAY:
8649 case MONO_TYPE_CLASS:
8650 case MONO_TYPE_VALUETYPE:
8651 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8654 g_assert_not_reached ();
8659 if (m->retobj_var) {
8660 mono_mb_emit_ldloc (mb, m->retobj_var);
8661 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8662 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8665 if (!MONO_TYPE_IS_VOID(sig->ret))
8666 mono_mb_emit_ldloc (mb, 3);
8667 mono_mb_emit_byte (mb, CEE_RET);
8676 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8678 MonoMethodSignature *sig;
8683 * Under windows, delegates passed to native code must use the STDCALL
8684 * calling convention.
8686 csig->call_convention = MONO_CALL_STDCALL;
8689 sig = mono_method_signature (method);
8691 /* Change default calling convention if needed */
8692 /* Why is this a modopt ? */
8693 if (sig->ret && sig->ret->num_mods) {
8694 for (i = 0; i < sig->ret->num_mods; ++i) {
8695 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8696 g_assert (cmod_class);
8697 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8698 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8699 csig->call_convention = MONO_CALL_C;
8700 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8701 csig->call_convention = MONO_CALL_STDCALL;
8702 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8703 csig->call_convention = MONO_CALL_FASTCALL;
8704 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8705 csig->call_convention = MONO_CALL_THISCALL;
8712 * generates IL code to call managed methods from unmanaged code
8713 * If target_handle==0, the wrapper info will be a NativeToManagedWrapperInfo structure.
8716 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8718 static MonoClass *UnmanagedFunctionPointerAttribute;
8719 MonoMethodSignature *sig, *csig, *invoke_sig;
8720 MonoMethodBuilder *mb;
8721 MonoMethod *res, *invoke;
8722 MonoMarshalSpec **mspecs;
8723 MonoMethodPInvoke piinfo;
8726 EmitMarshalContext m;
8728 g_assert (method != NULL);
8729 g_assert (!mono_method_signature (method)->pinvoke);
8732 * FIXME: Should cache the method+delegate type pair, since the same method
8733 * could be called with different delegates, thus different marshalling
8736 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8737 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8740 invoke = mono_get_delegate_invoke (delegate_klass);
8741 invoke_sig = mono_method_signature (invoke);
8743 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8744 mono_method_get_marshal_info (invoke, mspecs);
8746 sig = mono_method_signature (method);
8748 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8750 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8751 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8753 /* we copy the signature, so that we can modify it */
8755 /* Need to free this later */
8756 csig = mono_metadata_signature_dup (invoke_sig);
8758 csig = signature_dup (method->klass->image, invoke_sig);
8767 m.image = method->klass->image;
8769 mono_marshal_set_callconv_from_modopt (invoke, csig);
8771 /* Handle the UnmanagedFunctionPointerAttribute */
8772 if (!UnmanagedFunctionPointerAttribute)
8773 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8775 /* The attribute is only available in Net 2.0 */
8776 if (UnmanagedFunctionPointerAttribute) {
8777 MonoCustomAttrInfo *cinfo;
8778 MonoCustomAttrEntry *attr;
8781 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8782 * contents of the attribute without constructing it, as that might not be
8783 * possible when running in cross-compiling mode.
8785 cinfo = mono_custom_attrs_from_class (delegate_klass);
8788 for (i = 0; i < cinfo->num_attrs; ++i) {
8789 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8790 attr = &cinfo->attrs [i];
8796 MonoArray *typed_args, *named_args;
8797 CattrNamedArg *arginfo;
8801 MonoBoolean set_last_error = 0;
8802 MonoBoolean best_fit_mapping = 0;
8803 MonoBoolean throw_on_unmappable = 0;
8805 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8807 g_assert (mono_array_length (typed_args) == 1);
8810 o = mono_array_get (typed_args, MonoObject*, 0);
8811 call_conv = *(gint32*)mono_object_unbox (o);
8814 for (i = 0; i < mono_array_length (named_args); ++i) {
8815 CattrNamedArg *narg = &arginfo [i];
8817 o = mono_array_get (named_args, MonoObject*, i);
8819 g_assert (narg->field);
8820 if (!strcmp (narg->field->name, "CharSet")) {
8821 charset = *(gint32*)mono_object_unbox (o);
8822 } else if (!strcmp (narg->field->name, "SetLastError")) {
8823 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8824 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8825 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8826 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8827 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8829 g_assert_not_reached ();
8835 memset (&piinfo, 0, sizeof (piinfo));
8837 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8839 csig->call_convention = call_conv - 1;
8842 if (cinfo && !cinfo->cached)
8843 mono_custom_attrs_free (cinfo);
8846 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8848 if (!target_handle) {
8849 NativeToManagedWrapperInfo *info;
8851 res = mono_mb_create_and_cache (cache, method,
8852 mb, csig, sig->param_count + 16);
8853 // FIXME: Associate it with the method+delegate_klass pair
8854 info = mono_image_alloc0 (method->klass->image, sizeof (NativeToManagedWrapperInfo));
8855 info->method = method;
8856 info->klass = delegate_klass;
8857 mono_marshal_set_wrapper_info (res, info);
8860 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8864 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8866 mono_metadata_free_marshal_spec (mspecs [i]);
8869 /* code_for (res); */
8875 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8878 MonoMethodSignature *sig;
8879 MonoMethodBuilder *mb;
8884 method = mono_get_method (image, token, NULL);
8887 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8888 MonoMethodSignature *csig;
8889 MonoMarshalSpec **mspecs;
8890 EmitMarshalContext m;
8892 sig = mono_method_signature (method);
8893 g_assert (!sig->hasthis);
8895 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8896 mono_method_get_marshal_info (method, mspecs);
8898 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8899 csig = signature_dup (image, sig);
8910 mono_marshal_set_callconv_from_modopt (method, csig);
8912 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8914 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8917 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8920 for (i = sig->param_count; i >= 0; i--)
8922 mono_metadata_free_marshal_spec (mspecs [i]);
8925 return mono_compile_method (method);
8928 sig = mono_method_signature (method);
8929 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8931 param_count = sig->param_count + sig->hasthis;
8932 for (i = 0; i < param_count; i++)
8933 mono_mb_emit_ldarg (mb, i);
8935 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8936 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8938 mono_mb_emit_op (mb, CEE_CALL, method);
8939 mono_mb_emit_byte (mb, CEE_RET);
8942 method = mono_mb_create_method (mb, sig, param_count);
8945 return mono_compile_method (method);
8948 static MonoReflectionType *
8949 type_from_handle (MonoType *handle)
8951 MonoDomain *domain = mono_domain_get ();
8952 MonoClass *klass = mono_class_from_mono_type (handle);
8954 MONO_ARCH_SAVE_REGS;
8956 mono_class_init (klass);
8957 return mono_type_get_object (domain, handle);
8961 * This does the equivalent of mono_object_castclass_with_cache.
8964 mono_marshal_get_castclass_with_cache (void)
8966 static MonoMethod *cached;
8968 MonoMethodBuilder *mb;
8969 MonoMethodSignature *sig;
8970 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8975 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8976 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8977 sig->params [0] = &mono_defaults.object_class->byval_arg;
8978 sig->params [1] = &mono_defaults.int_class->byval_arg;
8979 sig->params [2] = &mono_defaults.int_class->byval_arg;
8980 sig->ret = &mono_defaults.object_class->byval_arg;
8983 /* allocate local 0 (pointer) obj_vtable */
8984 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8987 mono_mb_emit_ldarg (mb, 0);
8988 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8990 /*obj_vtable = obj->vtable;*/
8991 mono_mb_emit_ldarg (mb, 0);
8992 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8993 mono_mb_emit_byte (mb, CEE_LDIND_I);
8994 mono_mb_emit_stloc (mb, 0);
8997 mono_mb_emit_ldarg (mb, 2);
8998 mono_mb_emit_byte (mb, CEE_LDIND_I);
8999 mono_mb_emit_ldloc (mb, 0);
9001 /*if (*cache == obj_vtable)*/
9002 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9005 mono_mb_emit_ldarg (mb, 0);
9006 mono_mb_emit_byte (mb, CEE_RET);
9008 mono_mb_patch_branch (mb, cache_miss_pos);
9009 /*if (mono_object_isinst (obj, klass)) */
9010 mono_mb_emit_ldarg (mb, 0);
9011 mono_mb_emit_ldarg (mb, 1);
9012 mono_mb_emit_icall (mb, mono_object_isinst);
9013 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9015 /**cache = obj_vtable;*/
9016 mono_mb_emit_ldarg (mb, 2);
9017 mono_mb_emit_ldloc (mb, 0);
9018 mono_mb_emit_byte (mb, CEE_STIND_I);
9021 mono_mb_emit_ldarg (mb, 0);
9022 mono_mb_emit_byte (mb, CEE_RET);
9025 mono_mb_patch_branch (mb, invalid_cast_pos);
9026 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9029 mono_mb_patch_branch (mb, return_null_pos);
9030 mono_mb_emit_byte (mb, CEE_LDNULL);
9031 mono_mb_emit_byte (mb, CEE_RET);
9033 res = mono_mb_create_method (mb, sig, 8);
9034 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9035 mono_free_method (res);
9036 mono_metadata_free_method_signature (sig);
9044 * This does the equivalent of mono_object_isinst_with_cache.
9047 mono_marshal_get_isinst_with_cache (void)
9049 static MonoMethod *cached;
9051 MonoMethodBuilder *mb;
9052 MonoMethodSignature *sig;
9053 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9058 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9059 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9060 sig->params [0] = &mono_defaults.object_class->byval_arg;
9061 sig->params [1] = &mono_defaults.int_class->byval_arg;
9062 sig->params [2] = &mono_defaults.int_class->byval_arg;
9063 sig->ret = &mono_defaults.object_class->byval_arg;
9066 /* allocate local 0 (pointer) obj_vtable */
9067 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9068 /* allocate local 1 (pointer) cached_vtable */
9069 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9072 mono_mb_emit_ldarg (mb, 0);
9073 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9075 /*obj_vtable = obj->vtable;*/
9076 mono_mb_emit_ldarg (mb, 0);
9077 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9078 mono_mb_emit_byte (mb, CEE_LDIND_I);
9079 mono_mb_emit_stloc (mb, 0);
9081 /* cached_vtable = *cache*/
9082 mono_mb_emit_ldarg (mb, 2);
9083 mono_mb_emit_byte (mb, CEE_LDIND_I);
9084 mono_mb_emit_stloc (mb, 1);
9086 mono_mb_emit_ldloc (mb, 1);
9087 mono_mb_emit_byte (mb, CEE_LDC_I4);
9088 mono_mb_emit_i4 (mb, ~0x1);
9089 mono_mb_emit_byte (mb, CEE_CONV_U);
9090 mono_mb_emit_byte (mb, CEE_AND);
9091 mono_mb_emit_ldloc (mb, 0);
9092 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9093 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9095 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9096 mono_mb_emit_ldloc (mb, 1);
9097 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9098 mono_mb_emit_byte (mb, CEE_CONV_U);
9099 mono_mb_emit_byte (mb, CEE_AND);
9100 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9103 mono_mb_emit_ldarg (mb, 0);
9104 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9107 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9108 mono_mb_emit_byte (mb, CEE_LDNULL);
9110 mono_mb_patch_branch (mb, cache_hit_pos);
9111 mono_mb_emit_byte (mb, CEE_RET);
9113 mono_mb_patch_branch (mb, cache_miss_pos);
9114 /*if (mono_object_isinst (obj, klass)) */
9115 mono_mb_emit_ldarg (mb, 0);
9116 mono_mb_emit_ldarg (mb, 1);
9117 mono_mb_emit_icall (mb, mono_object_isinst);
9118 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9120 /**cache = obj_vtable;*/
9121 mono_mb_emit_ldarg (mb, 2);
9122 mono_mb_emit_ldloc (mb, 0);
9123 mono_mb_emit_byte (mb, CEE_STIND_I);
9126 mono_mb_emit_ldarg (mb, 0);
9127 mono_mb_emit_byte (mb, CEE_RET);
9130 mono_mb_patch_branch (mb, not_an_instance_pos);
9131 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9132 mono_mb_emit_ldarg (mb, 2);
9133 /*obj_vtable | 0x1*/
9134 mono_mb_emit_ldloc (mb, 0);
9135 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9136 mono_mb_emit_byte (mb, CEE_CONV_U);
9137 mono_mb_emit_byte (mb, CEE_OR);
9140 mono_mb_emit_byte (mb, CEE_STIND_I);
9143 mono_mb_patch_branch (mb, return_null_pos);
9144 mono_mb_emit_byte (mb, CEE_LDNULL);
9145 mono_mb_emit_byte (mb, CEE_RET);
9147 res = mono_mb_create_method (mb, sig, 8);
9148 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9149 mono_free_method (res);
9150 mono_metadata_free_method_signature (sig);
9158 * mono_marshal_get_isinst:
9159 * @klass: the type of the field
9161 * This method generates a function which can be used to check if an object is
9162 * an instance of the given type, icluding the case where the object is a proxy.
9163 * The generated function has the following signature:
9164 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9167 mono_marshal_get_isinst (MonoClass *klass)
9169 static MonoMethodSignature *isint_sig = NULL;
9172 int pos_was_ok, pos_failed, pos_end, pos_end2;
9174 MonoMethodBuilder *mb;
9176 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9177 if ((res = mono_marshal_find_in_cache (cache, klass)))
9181 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9182 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9183 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9184 isint_sig->pinvoke = 0;
9187 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9188 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9191 mb->method->save_lmf = 1;
9193 /* check if the object is a proxy that needs special cast */
9194 mono_mb_emit_ldarg (mb, 0);
9195 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9196 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9198 /* The result of MONO_ISINST can be:
9199 0) the type check succeeded
9200 1) the type check did not succeed
9201 2) a CanCastTo call is needed */
9203 mono_mb_emit_byte (mb, CEE_DUP);
9204 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9206 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9207 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9209 /* get the real proxy from the transparent proxy*/
9211 mono_mb_emit_ldarg (mb, 0);
9212 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9213 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9217 mono_mb_patch_branch (mb, pos_failed);
9218 mono_mb_emit_byte (mb, CEE_LDNULL);
9219 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9223 mono_mb_patch_branch (mb, pos_was_ok);
9224 mono_mb_emit_byte (mb, CEE_POP);
9225 mono_mb_emit_ldarg (mb, 0);
9229 mono_mb_patch_branch (mb, pos_end);
9230 mono_mb_patch_branch (mb, pos_end2);
9231 mono_mb_emit_byte (mb, CEE_RET);
9233 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9240 * mono_marshal_get_castclass:
9241 * @klass: the type of the field
9243 * This method generates a function which can be used to cast an object to
9244 * an instance of the given type, icluding the case where the object is a proxy.
9245 * The generated function has the following signature:
9246 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9249 mono_marshal_get_castclass (MonoClass *klass)
9251 static MonoMethodSignature *castclass_sig = NULL;
9254 int pos_was_ok, pos_was_ok2;
9256 MonoMethodBuilder *mb;
9258 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9259 if ((res = mono_marshal_find_in_cache (cache, klass)))
9262 if (!castclass_sig) {
9263 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9264 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9265 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9266 castclass_sig->pinvoke = 0;
9269 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9270 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9273 mb->method->save_lmf = 1;
9275 /* check if the object is a proxy that needs special cast */
9276 mono_mb_emit_ldarg (mb, 0);
9277 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9278 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9280 /* The result of MONO_ISINST can be:
9281 0) the cast is valid
9282 1) cast of unknown proxy type
9283 or an exception if the cast is is invalid
9286 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9288 /* get the real proxy from the transparent proxy*/
9290 mono_mb_emit_ldarg (mb, 0);
9291 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9292 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9295 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9298 mono_mb_patch_branch (mb, pos_was_ok);
9299 mono_mb_patch_branch (mb, pos_was_ok2);
9300 mono_mb_emit_ldarg (mb, 0);
9303 mono_mb_emit_byte (mb, CEE_RET);
9305 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9312 mono_marshal_get_proxy_cancast (MonoClass *klass)
9314 static MonoMethodSignature *isint_sig = NULL;
9317 int pos_failed, pos_end;
9318 char *name, *klass_name;
9319 MonoMethod *can_cast_to;
9320 MonoMethodDesc *desc;
9321 MonoMethodBuilder *mb;
9323 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9324 if ((res = mono_marshal_find_in_cache (cache, klass)))
9328 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9329 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9330 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9331 isint_sig->pinvoke = 0;
9334 klass_name = mono_type_full_name (&klass->byval_arg);
9335 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
9336 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9337 g_free (klass_name);
9340 mb->method->save_lmf = 1;
9342 /* get the real proxy from the transparent proxy*/
9343 mono_mb_emit_ldarg (mb, 0);
9344 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9345 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9347 /* get the reflection type from the type handle */
9348 mono_mb_emit_ptr (mb, &klass->byval_arg);
9349 mono_mb_emit_icall (mb, type_from_handle);
9351 mono_mb_emit_ldarg (mb, 0);
9353 /* make the call to CanCastTo (type, ob) */
9354 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9355 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9356 g_assert (can_cast_to);
9357 mono_method_desc_free (desc);
9358 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9360 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9362 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9363 mono_mb_emit_ptr (mb, &klass->byval_arg);
9364 mono_mb_emit_icall (mb, type_from_handle);
9365 mono_mb_emit_ldarg (mb, 0);
9367 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9368 emit_thread_interrupt_checkpoint (mb);
9370 mono_mb_emit_ldarg (mb, 0);
9371 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9375 mono_mb_patch_branch (mb, pos_failed);
9376 mono_mb_emit_byte (mb, CEE_LDNULL);
9380 mono_mb_patch_branch (mb, pos_end);
9381 mono_mb_emit_byte (mb, CEE_RET);
9383 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9390 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9393 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9394 klass = mono_class_from_mono_type (rtype->type);
9395 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9399 * mono_marshal_get_struct_to_ptr:
9402 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9405 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9407 MonoMethodBuilder *mb;
9408 static MonoMethod *stoptr = NULL;
9411 g_assert (klass != NULL);
9413 mono_marshal_load_type_info (klass);
9415 if (klass->marshal_info->str_to_ptr)
9416 return klass->marshal_info->str_to_ptr;
9419 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9422 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9424 if (klass->blittable) {
9425 mono_mb_emit_byte (mb, CEE_LDARG_1);
9426 mono_mb_emit_byte (mb, CEE_LDARG_0);
9427 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9428 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9429 mono_mb_emit_byte (mb, CEE_PREFIX1);
9430 mono_mb_emit_byte (mb, CEE_CPBLK);
9433 /* allocate local 0 (pointer) src_ptr */
9434 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9435 /* allocate local 1 (pointer) dst_ptr */
9436 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9437 /* allocate local 2 (boolean) delete_old */
9438 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9439 mono_mb_emit_byte (mb, CEE_LDARG_2);
9440 mono_mb_emit_stloc (mb, 2);
9442 /* initialize src_ptr to point to the start of object data */
9443 mono_mb_emit_byte (mb, CEE_LDARG_0);
9444 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9445 mono_mb_emit_stloc (mb, 0);
9447 /* initialize dst_ptr */
9448 mono_mb_emit_byte (mb, CEE_LDARG_1);
9449 mono_mb_emit_stloc (mb, 1);
9451 emit_struct_conv (mb, klass, FALSE);
9454 mono_mb_emit_byte (mb, CEE_RET);
9456 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9459 klass->marshal_info->str_to_ptr = res;
9464 * mono_marshal_get_ptr_to_struct:
9467 * generates IL code for PtrToStructure (IntPtr src, object structure)
9470 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9472 MonoMethodBuilder *mb;
9473 static MonoMethodSignature *ptostr = NULL;
9476 g_assert (klass != NULL);
9478 mono_marshal_load_type_info (klass);
9480 if (klass->marshal_info->ptr_to_str)
9481 return klass->marshal_info->ptr_to_str;
9484 MonoMethodSignature *sig;
9486 /* Create the signature corresponding to
9487 static void PtrToStructure (IntPtr ptr, object structure);
9488 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9489 sig = mono_create_icall_signature ("void ptr object");
9490 sig = signature_dup (mono_defaults.corlib, sig);
9492 mono_memory_barrier ();
9496 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9498 if (klass->blittable) {
9499 mono_mb_emit_byte (mb, CEE_LDARG_1);
9500 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9501 mono_mb_emit_byte (mb, CEE_LDARG_0);
9502 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9503 mono_mb_emit_byte (mb, CEE_PREFIX1);
9504 mono_mb_emit_byte (mb, CEE_CPBLK);
9507 /* allocate local 0 (pointer) src_ptr */
9508 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9509 /* allocate local 1 (pointer) dst_ptr */
9510 mono_mb_add_local (mb, &klass->this_arg);
9512 /* initialize src_ptr to point to the start of object data */
9513 mono_mb_emit_byte (mb, CEE_LDARG_0);
9514 mono_mb_emit_stloc (mb, 0);
9516 /* initialize dst_ptr */
9517 mono_mb_emit_byte (mb, CEE_LDARG_1);
9518 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9519 mono_mb_emit_stloc (mb, 1);
9521 emit_struct_conv (mb, klass, TRUE);
9524 mono_mb_emit_byte (mb, CEE_RET);
9526 res = mono_mb_create_method (mb, ptostr, 0);
9529 klass->marshal_info->ptr_to_str = res;
9534 * generates IL code for the synchronized wrapper: the generated method
9535 * calls METHOD while locking 'this' or the parent type.
9538 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9540 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9541 MonoMethodSignature *sig;
9542 MonoExceptionClause *clause;
9543 MonoMethodBuilder *mb;
9546 int i, pos, this_local, ret_local = 0;
9550 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9553 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9554 if ((res = mono_marshal_find_in_cache (cache, method)))
9557 sig = signature_dup (method->klass->image, mono_method_signature (method));
9560 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9563 if (!MONO_TYPE_IS_VOID (sig->ret))
9564 ret_local = mono_mb_add_local (mb, sig->ret);
9566 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9567 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9568 /* This will throw the type load exception when the wrapper is compiled */
9569 mono_mb_emit_byte (mb, CEE_LDNULL);
9570 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9571 mono_mb_emit_byte (mb, CEE_POP);
9573 if (!MONO_TYPE_IS_VOID (sig->ret))
9574 mono_mb_emit_ldloc (mb, ret_local);
9575 mono_mb_emit_byte (mb, CEE_RET);
9577 res = mono_mb_create_and_cache (cache, method,
9578 mb, sig, sig->param_count + 16);
9585 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9587 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9588 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9590 mono_loader_lock ();
9592 if (!enter_method) {
9593 MonoMethodDesc *desc;
9595 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9596 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9597 g_assert (enter_method);
9598 mono_method_desc_free (desc);
9600 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9601 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9602 g_assert (exit_method);
9603 mono_method_desc_free (desc);
9605 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9606 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9607 g_assert (gettypefromhandle_method);
9608 mono_method_desc_free (desc);
9611 mono_loader_unlock ();
9613 /* Push this or the type object */
9614 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9615 /* We have special handling for this in the JIT */
9616 int index = mono_mb_add_data (mb, method->klass);
9617 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9618 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9619 mono_mb_emit_i4 (mb, index);
9621 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9624 mono_mb_emit_ldarg (mb, 0);
9625 mono_mb_emit_stloc (mb, this_local);
9627 /* Call Monitor::Enter() */
9628 mono_mb_emit_ldloc (mb, this_local);
9629 mono_mb_emit_managed_call (mb, enter_method, NULL);
9631 clause->try_offset = mono_mb_get_label (mb);
9633 /* Call the method */
9635 mono_mb_emit_ldarg (mb, 0);
9636 for (i = 0; i < sig->param_count; i++)
9637 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9639 mono_mb_emit_managed_call (mb, method, NULL);
9641 if (!MONO_TYPE_IS_VOID (sig->ret))
9642 mono_mb_emit_stloc (mb, ret_local);
9644 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9646 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9647 clause->handler_offset = mono_mb_get_label (mb);
9649 /* Call Monitor::Exit() */
9650 mono_mb_emit_ldloc (mb, this_local);
9651 mono_mb_emit_managed_call (mb, exit_method, NULL);
9652 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9654 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9656 mono_mb_patch_branch (mb, pos);
9657 if (!MONO_TYPE_IS_VOID (sig->ret))
9658 mono_mb_emit_ldloc (mb, ret_local);
9659 mono_mb_emit_byte (mb, CEE_RET);
9661 mono_mb_set_clauses (mb, 1, clause);
9663 res = mono_mb_create_and_cache (cache, method,
9664 mb, sig, sig->param_count + 16);
9672 * the returned method calls 'method' unboxing the this argument
9675 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9677 MonoMethodSignature *sig = mono_method_signature (method);
9679 MonoMethodBuilder *mb;
9683 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9684 if ((res = mono_marshal_find_in_cache (cache, method)))
9687 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9689 g_assert (sig->hasthis);
9691 mono_mb_emit_ldarg (mb, 0);
9692 mono_mb_emit_icon (mb, sizeof (MonoObject));
9693 mono_mb_emit_byte (mb, CEE_ADD);
9694 for (i = 0; i < sig->param_count; ++i)
9695 mono_mb_emit_ldarg (mb, i + 1);
9696 mono_mb_emit_managed_call (mb, method, NULL);
9697 mono_mb_emit_byte (mb, CEE_RET);
9699 res = mono_mb_create_and_cache (cache, method,
9700 mb, sig, sig->param_count + 16);
9703 /* code_for (res); */
9709 STELEMREF_OBJECT, /*no check at all*/
9710 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9711 STELEMREF_CLASS, /*only the klass->parents check*/
9712 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9713 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9714 STELEMREF_KIND_COUNT
9717 static const char *strelemref_wrapper_name[] = {
9718 "object", "sealed_class", "class", "interface", "complex"
9722 is_monomorphic_array (MonoClass *klass)
9724 MonoClass *element_class;
9725 if (klass->rank != 1)
9728 element_class = klass->element_class;
9729 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9733 get_virtual_stelemref_kind (MonoClass *element_class)
9735 if (element_class == mono_defaults.object_class)
9736 return STELEMREF_OBJECT;
9737 if (is_monomorphic_array (element_class))
9738 return STELEMREF_SEALED_CLASS;
9739 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9740 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9741 #ifdef COMPRESSED_INTERFACE_BITMAP
9742 return STELEMREF_COMPLEX;
9744 return STELEMREF_INTERFACE;
9746 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9747 if (element_class->marshalbyref || element_class->rank || mono_class_has_variant_generic_params (element_class))
9748 return STELEMREF_COMPLEX;
9749 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9750 return STELEMREF_SEALED_CLASS;
9751 return STELEMREF_CLASS;
9755 load_array_element_address (MonoMethodBuilder *mb)
9757 mono_mb_emit_ldarg (mb, 0);
9758 mono_mb_emit_ldarg (mb, 1);
9759 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9763 load_array_class (MonoMethodBuilder *mb, int aklass)
9765 mono_mb_emit_ldarg (mb, 0);
9766 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9767 mono_mb_emit_byte (mb, CEE_LDIND_I);
9768 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9769 mono_mb_emit_byte (mb, CEE_LDIND_I);
9770 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9771 mono_mb_emit_byte (mb, CEE_LDIND_I);
9772 mono_mb_emit_stloc (mb, aklass);
9776 load_value_class (MonoMethodBuilder *mb, int vklass)
9778 mono_mb_emit_ldarg (mb, 2);
9779 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9780 mono_mb_emit_byte (mb, CEE_LDIND_I);
9781 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9782 mono_mb_emit_byte (mb, CEE_LDIND_I);
9783 mono_mb_emit_stloc (mb, vklass);
9788 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9790 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9791 printf ("slow vstore of %s\n", name);
9797 * The wrapper info for the wrapper contains the wrapper 'kind' + 1.
9800 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9801 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9802 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9803 * - Add a case for arrays of arrays.
9806 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9808 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9809 static MonoMethodSignature *signature;
9810 MonoMethodBuilder *mb;
9814 const char *param_names [16];
9816 int aklass, vklass, vtable, uiid;
9817 int array_slot_addr;
9819 g_assert (array_class->rank == 1);
9820 kind = get_virtual_stelemref_kind (array_class->element_class);
9822 if (cached_methods [kind])
9823 return cached_methods [kind];
9825 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9826 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9829 param_names [0] = "index";
9830 param_names [1] = "value";
9831 mono_mb_set_param_names (mb, param_names);
9834 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9836 /* void this::stelemref (size_t idx, void* value) */
9837 sig->ret = &mono_defaults.void_class->byval_arg;
9838 sig->hasthis = TRUE;
9839 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9840 sig->params [1] = &mono_defaults.object_class->byval_arg;
9844 /*For now simply call plain old stelemref*/
9846 case STELEMREF_OBJECT:
9847 /* ldelema (implicit bound check) */
9848 load_array_element_address (mb);
9850 mono_mb_emit_ldarg (mb, 2);
9851 mono_mb_emit_byte (mb, CEE_STIND_REF);
9852 mono_mb_emit_byte (mb, CEE_RET);
9855 case STELEMREF_COMPLEX:
9857 <ldelema (bound check)>
9860 if (!mono_object_isinst (value, aklass))
9864 *array_slot_addr = value;
9867 throw new ArrayTypeMismatchException ();
9870 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9871 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9875 /*Use this to debug/record stores that are going thru the slow path*/
9876 MonoMethodSignature *csig;
9877 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9878 csig->ret = &mono_defaults.void_class->byval_arg;
9879 csig->params [0] = &mono_defaults.object_class->byval_arg;
9880 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9881 csig->params [2] = &mono_defaults.object_class->byval_arg;
9882 mono_mb_emit_ldarg (mb, 0);
9883 mono_mb_emit_ldarg (mb, 1);
9884 mono_mb_emit_ldarg (mb, 2);
9885 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9889 /* ldelema (implicit bound check) */
9890 load_array_element_address (mb);
9891 mono_mb_emit_stloc (mb, array_slot_addr);
9893 /* if (!value) goto do_store */
9894 mono_mb_emit_ldarg (mb, 2);
9895 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9897 /* aklass = array->vtable->klass->element_class */
9898 load_array_class (mb, aklass);
9900 /*if (mono_object_isinst (value, aklass)) */
9901 mono_mb_emit_ldarg (mb, 2);
9902 mono_mb_emit_ldloc (mb, aklass);
9903 mono_mb_emit_icall (mb, mono_object_isinst);
9904 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9907 mono_mb_patch_branch (mb, b1);
9908 mono_mb_emit_ldloc (mb, array_slot_addr);
9909 mono_mb_emit_ldarg (mb, 2);
9910 mono_mb_emit_byte (mb, CEE_STIND_REF);
9911 mono_mb_emit_byte (mb, CEE_RET);
9914 mono_mb_patch_branch (mb, b2);
9916 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9919 case STELEMREF_SEALED_CLASS:
9921 <ldelema (bound check)>
9925 aklass = array->vtable->klass->element_class;
9926 vklass = value->vtable->klass;
9928 if (vklass != aklass)
9932 *array_slot_addr = value;
9935 throw new ArrayTypeMismatchException ();
9937 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9938 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9939 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9942 /* ldelema (implicit bound check) */
9943 load_array_element_address (mb);
9944 mono_mb_emit_stloc (mb, array_slot_addr);
9946 /* if (!value) goto do_store */
9947 mono_mb_emit_ldarg (mb, 2);
9948 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9950 /* aklass = array->vtable->klass->element_class */
9951 load_array_class (mb, aklass);
9953 /* vklass = value->vtable->klass */
9954 load_value_class (mb, vklass);
9956 /*if (vklass != aklass) goto do_exception; */
9957 mono_mb_emit_ldloc (mb, aklass);
9958 mono_mb_emit_ldloc (mb, vklass);
9959 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9962 mono_mb_patch_branch (mb, b1);
9963 mono_mb_emit_ldloc (mb, array_slot_addr);
9964 mono_mb_emit_ldarg (mb, 2);
9965 mono_mb_emit_byte (mb, CEE_STIND_REF);
9966 mono_mb_emit_byte (mb, CEE_RET);
9969 mono_mb_patch_branch (mb, b2);
9970 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9973 case STELEMREF_CLASS:
9976 <ldelema (bound check)>
9980 aklass = array->vtable->klass->element_class;
9981 vklass = value->vtable->klass;
9983 if (vklass->idepth < aklass->idepth)
9986 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9990 *array_slot_addr = value;
9994 throw new ArrayTypeMismatchException ();
9996 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9997 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9998 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10000 /* ldelema (implicit bound check) */
10001 load_array_element_address (mb);
10002 mono_mb_emit_stloc (mb, array_slot_addr);
10004 /* if (!value) goto do_store */
10005 mono_mb_emit_ldarg (mb, 2);
10006 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10008 /* aklass = array->vtable->klass->element_class */
10009 load_array_class (mb, aklass);
10011 /* vklass = value->vtable->klass */
10012 load_value_class (mb, vklass);
10014 /*if (mono_object_isinst (value, aklass)) */
10015 mono_mb_emit_ldarg (mb, 2);
10016 mono_mb_emit_ldloc (mb, aklass);
10017 mono_mb_emit_icall (mb, mono_object_isinst);
10018 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10020 /* if (vklass->idepth < aklass->idepth) goto failue */
10021 mono_mb_emit_ldloc (mb, vklass);
10022 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10023 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10025 mono_mb_emit_ldloc (mb, aklass);
10026 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10027 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10029 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10031 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10032 mono_mb_emit_ldloc (mb, vklass);
10033 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10034 mono_mb_emit_byte (mb, CEE_LDIND_I);
10036 mono_mb_emit_ldloc (mb, aklass);
10037 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10038 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10039 mono_mb_emit_icon (mb, 1);
10040 mono_mb_emit_byte (mb, CEE_SUB);
10041 mono_mb_emit_icon (mb, sizeof (void*));
10042 mono_mb_emit_byte (mb, CEE_MUL);
10043 mono_mb_emit_byte (mb, CEE_ADD);
10044 mono_mb_emit_byte (mb, CEE_LDIND_I);
10046 mono_mb_emit_ldloc (mb, aklass);
10047 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10050 mono_mb_patch_branch (mb, b1);
10051 mono_mb_emit_ldloc (mb, array_slot_addr);
10052 mono_mb_emit_ldarg (mb, 2);
10053 mono_mb_emit_byte (mb, CEE_STIND_REF);
10054 mono_mb_emit_byte (mb, CEE_RET);
10056 /* do_exception: */
10057 mono_mb_patch_branch (mb, b2);
10058 mono_mb_patch_branch (mb, b3);
10060 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10063 case STELEMREF_INTERFACE:
10070 klass = array->obj.vtable->klass->element_class;
10071 vt = value->vtable;
10072 uiid = klass->interface_id;
10073 if (uiid > vt->max_interface_id)
10075 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10078 mono_array_setref (array, index, value);
10081 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10083 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10084 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10085 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10086 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10088 /* ldelema (implicit bound check) */
10089 load_array_element_address (mb);
10090 mono_mb_emit_stloc (mb, array_slot_addr);
10092 /* if (!value) goto do_store */
10093 mono_mb_emit_ldarg (mb, 2);
10094 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10096 /* klass = array->vtable->klass->element_class */
10097 load_array_class (mb, aklass);
10099 /* vt = value->vtable */
10100 mono_mb_emit_ldarg (mb, 2);
10101 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10102 mono_mb_emit_byte (mb, CEE_LDIND_I);
10103 mono_mb_emit_stloc (mb, vtable);
10105 /* uiid = klass->interface_id; */
10106 mono_mb_emit_ldloc (mb, aklass);
10107 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10108 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10109 mono_mb_emit_stloc (mb, uiid);
10111 /*if (uiid > vt->max_interface_id)*/
10112 mono_mb_emit_ldloc (mb, uiid);
10113 mono_mb_emit_ldloc (mb, vtable);
10114 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10115 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10116 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10118 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10120 /*vt->interface_bitmap*/
10121 mono_mb_emit_ldloc (mb, vtable);
10122 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10123 mono_mb_emit_byte (mb, CEE_LDIND_I);
10126 mono_mb_emit_ldloc (mb, uiid);
10127 mono_mb_emit_icon (mb, 3);
10128 mono_mb_emit_byte (mb, CEE_SHR_UN);
10130 /*vt->interface_bitmap [(uiid) >> 3]*/
10131 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10132 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10134 /*(1 << ((uiid)&7)))*/
10135 mono_mb_emit_icon (mb, 1);
10136 mono_mb_emit_ldloc (mb, uiid);
10137 mono_mb_emit_icon (mb, 7);
10138 mono_mb_emit_byte (mb, CEE_AND);
10139 mono_mb_emit_byte (mb, CEE_SHL);
10141 /*bitwise and the whole thing*/
10142 mono_mb_emit_byte (mb, CEE_AND);
10143 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10146 mono_mb_patch_branch (mb, b1);
10147 mono_mb_emit_ldloc (mb, array_slot_addr);
10148 mono_mb_emit_ldarg (mb, 2);
10149 mono_mb_emit_byte (mb, CEE_STIND_REF);
10150 mono_mb_emit_byte (mb, CEE_RET);
10152 /* do_exception: */
10153 mono_mb_patch_branch (mb, b2);
10154 mono_mb_patch_branch (mb, b3);
10155 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10159 mono_mb_emit_ldarg (mb, 0);
10160 mono_mb_emit_ldarg (mb, 1);
10161 mono_mb_emit_ldarg (mb, 2);
10162 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10163 mono_mb_emit_byte (mb, CEE_RET);
10167 res = mono_mb_create_method (mb, signature, 4);
10168 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10169 mono_marshal_set_wrapper_info (res, GUINT_TO_POINTER (kind + 1));
10171 mono_marshal_lock ();
10172 if (!cached_methods [kind]) {
10173 cached_methods [kind] = res;
10174 mono_marshal_unlock ();
10176 mono_marshal_unlock ();
10177 mono_free_method (res);
10181 return cached_methods [kind];
10185 mono_marshal_get_stelemref ()
10187 static MonoMethod* ret = NULL;
10188 MonoMethodSignature *sig;
10189 MonoMethodBuilder *mb;
10191 guint32 b1, b2, b3, b4;
10193 int aklass, vklass;
10194 int array_slot_addr;
10199 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10202 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10204 /* void stelemref (void* array, int idx, void* value) */
10205 sig->ret = &mono_defaults.void_class->byval_arg;
10206 sig->params [0] = &mono_defaults.object_class->byval_arg;
10207 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10208 sig->params [2] = &mono_defaults.object_class->byval_arg;
10210 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10211 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10212 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10216 <ldelema (bound check)>
10220 aklass = array->vtable->klass->element_class;
10221 vklass = value->vtable->klass;
10223 if (vklass->idepth < aklass->idepth)
10226 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10230 *array_slot_addr = value;
10234 if (mono_object_isinst (value, aklass))
10237 throw new ArrayTypeMismatchException ();
10240 /* ldelema (implicit bound check) */
10241 mono_mb_emit_ldarg (mb, 0);
10242 mono_mb_emit_ldarg (mb, 1);
10243 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10244 mono_mb_emit_stloc (mb, array_slot_addr);
10246 /* if (!value) goto do_store */
10247 mono_mb_emit_ldarg (mb, 2);
10248 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10250 /* aklass = array->vtable->klass->element_class */
10251 mono_mb_emit_ldarg (mb, 0);
10252 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10253 mono_mb_emit_byte (mb, CEE_LDIND_I);
10254 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10255 mono_mb_emit_byte (mb, CEE_LDIND_I);
10256 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10257 mono_mb_emit_byte (mb, CEE_LDIND_I);
10258 mono_mb_emit_stloc (mb, aklass);
10260 /* vklass = value->vtable->klass */
10261 mono_mb_emit_ldarg (mb, 2);
10262 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10263 mono_mb_emit_byte (mb, CEE_LDIND_I);
10264 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10265 mono_mb_emit_byte (mb, CEE_LDIND_I);
10266 mono_mb_emit_stloc (mb, vklass);
10268 /* if (vklass->idepth < aklass->idepth) goto failue */
10269 mono_mb_emit_ldloc (mb, vklass);
10270 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10271 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10273 mono_mb_emit_ldloc (mb, aklass);
10274 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10275 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10277 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10279 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10280 mono_mb_emit_ldloc (mb, vklass);
10281 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10282 mono_mb_emit_byte (mb, CEE_LDIND_I);
10284 mono_mb_emit_ldloc (mb, aklass);
10285 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10286 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10287 mono_mb_emit_icon (mb, 1);
10288 mono_mb_emit_byte (mb, CEE_SUB);
10289 mono_mb_emit_icon (mb, sizeof (void*));
10290 mono_mb_emit_byte (mb, CEE_MUL);
10291 mono_mb_emit_byte (mb, CEE_ADD);
10292 mono_mb_emit_byte (mb, CEE_LDIND_I);
10294 mono_mb_emit_ldloc (mb, aklass);
10296 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10298 copy_pos = mono_mb_get_label (mb);
10300 mono_mb_patch_branch (mb, b1);
10301 mono_mb_emit_ldloc (mb, array_slot_addr);
10302 mono_mb_emit_ldarg (mb, 2);
10303 mono_mb_emit_byte (mb, CEE_STIND_REF);
10305 mono_mb_emit_byte (mb, CEE_RET);
10308 mono_mb_patch_branch (mb, b2);
10309 mono_mb_patch_branch (mb, b3);
10311 mono_mb_emit_ldarg (mb, 2);
10312 mono_mb_emit_ldloc (mb, aklass);
10313 mono_mb_emit_icall (mb, mono_object_isinst);
10315 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10316 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10317 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10319 mono_mb_emit_byte (mb, CEE_RET);
10320 ret = mono_mb_create_method (mb, sig, 4);
10328 MonoMethod *method;
10331 /* LOCKING: vars accessed under the marshal lock */
10332 static ArrayElemAddr *elem_addr_cache = NULL;
10333 static int elem_addr_cache_size = 0;
10334 static int elem_addr_cache_next = 0;
10337 * mono_marshal_get_array_address:
10338 * @rank: rank of the array type
10339 * @elem_size: size in bytes of an element of an array.
10341 * Returns a MonoMethd that implements the code to get the address
10342 * of an element in a multi-dimenasional array of @rank dimensions.
10343 * The returned method takes an array as the first argument and then
10344 * @rank indexes for the @rank dimensions.
10347 mono_marshal_get_array_address (int rank, int elem_size)
10350 MonoMethodBuilder *mb;
10351 MonoMethodSignature *sig;
10352 int i, bounds, ind, realidx;
10353 int branch_pos, *branch_positions;
10357 mono_marshal_lock ();
10358 for (i = 0; i < elem_addr_cache_next; ++i) {
10359 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10360 ret = elem_addr_cache [i].method;
10364 mono_marshal_unlock ();
10368 branch_positions = g_new0 (int, rank);
10370 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10372 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10373 sig->ret = &mono_defaults.int_class->byval_arg;
10374 sig->params [0] = &mono_defaults.object_class->byval_arg;
10375 for (i = 0; i < rank; ++i) {
10376 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10379 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10381 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10382 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10383 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10385 /* bounds = array->bounds; */
10386 mono_mb_emit_ldarg (mb, 0);
10387 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10388 mono_mb_emit_byte (mb, CEE_LDIND_I);
10389 mono_mb_emit_stloc (mb, bounds);
10391 /* ind is the overall element index, realidx is the partial index in a single dimension */
10392 /* ind = idx0 - bounds [0].lower_bound */
10393 mono_mb_emit_ldarg (mb, 1);
10394 mono_mb_emit_ldloc (mb, bounds);
10395 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10396 mono_mb_emit_byte (mb, CEE_ADD);
10397 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10398 mono_mb_emit_byte (mb, CEE_SUB);
10399 mono_mb_emit_stloc (mb, ind);
10400 /* if (ind >= bounds [0].length) goto exeception; */
10401 mono_mb_emit_ldloc (mb, ind);
10402 mono_mb_emit_ldloc (mb, bounds);
10403 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10404 mono_mb_emit_byte (mb, CEE_ADD);
10405 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10406 /* note that we use unsigned comparison */
10407 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10409 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10410 * We could also decide to ignore the passed elem_size and get it
10411 * from the array object, to reduce the number of methods we generate:
10412 * the additional cost is 3 memory loads and a non-immediate mul.
10414 for (i = 1; i < rank; ++i) {
10415 /* realidx = idxi - bounds [i].lower_bound */
10416 mono_mb_emit_ldarg (mb, 1 + i);
10417 mono_mb_emit_ldloc (mb, bounds);
10418 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10419 mono_mb_emit_byte (mb, CEE_ADD);
10420 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10421 mono_mb_emit_byte (mb, CEE_SUB);
10422 mono_mb_emit_stloc (mb, realidx);
10423 /* if (realidx >= bounds [i].length) goto exeception; */
10424 mono_mb_emit_ldloc (mb, realidx);
10425 mono_mb_emit_ldloc (mb, bounds);
10426 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10427 mono_mb_emit_byte (mb, CEE_ADD);
10428 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10429 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10430 /* ind = ind * bounds [i].length + realidx */
10431 mono_mb_emit_ldloc (mb, ind);
10432 mono_mb_emit_ldloc (mb, bounds);
10433 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10434 mono_mb_emit_byte (mb, CEE_ADD);
10435 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10436 mono_mb_emit_byte (mb, CEE_MUL);
10437 mono_mb_emit_ldloc (mb, realidx);
10438 mono_mb_emit_byte (mb, CEE_ADD);
10439 mono_mb_emit_stloc (mb, ind);
10442 /* return array->vector + ind * element_size */
10443 mono_mb_emit_ldarg (mb, 0);
10444 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10445 mono_mb_emit_ldloc (mb, ind);
10446 mono_mb_emit_icon (mb, elem_size);
10447 mono_mb_emit_byte (mb, CEE_MUL);
10448 mono_mb_emit_byte (mb, CEE_ADD);
10449 mono_mb_emit_byte (mb, CEE_RET);
10451 /* patch the branches to get here and throw */
10452 for (i = 1; i < rank; ++i) {
10453 mono_mb_patch_branch (mb, branch_positions [i]);
10455 mono_mb_patch_branch (mb, branch_pos);
10456 /* throw exception */
10457 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10459 g_free (branch_positions);
10460 ret = mono_mb_create_method (mb, sig, 4);
10463 /* cache the result */
10465 mono_marshal_lock ();
10466 for (i = 0; i < elem_addr_cache_next; ++i) {
10467 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10468 /* FIXME: free ret */
10469 ret = elem_addr_cache [i].method;
10475 ElementAddrWrapperInfo *info;
10477 if (elem_addr_cache_next >= elem_addr_cache_size) {
10478 int new_size = elem_addr_cache_size + 4;
10479 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10480 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10481 g_free (elem_addr_cache);
10482 elem_addr_cache = new_array;
10483 elem_addr_cache_size = new_size;
10485 elem_addr_cache [elem_addr_cache_next].rank = rank;
10486 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10487 elem_addr_cache [elem_addr_cache_next].method = ret;
10488 elem_addr_cache_next ++;
10490 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
10492 info->elem_size = elem_size;
10494 mono_marshal_set_wrapper_info (ret, info);
10496 mono_marshal_unlock ();
10501 mono_marshal_alloc (gulong size)
10506 res = CoTaskMemAlloc (size);
10508 res = g_try_malloc ((gulong)size);
10510 mono_gc_out_of_memory ((gulong)size);
10516 mono_marshal_free (gpointer ptr)
10519 CoTaskMemFree (ptr);
10526 mono_marshal_free_array (gpointer *ptr, int size)
10533 for (i = 0; i < size; i++)
10539 mono_marshal_string_to_utf16 (MonoString *s)
10541 return s ? mono_string_chars (s) : NULL;
10545 mono_marshal_string_to_utf16_copy (MonoString *s)
10550 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10551 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10552 res [mono_string_length (s)] = 0;
10558 * mono_marshal_set_last_error:
10560 * This function is invoked to set the last error value from a P/Invoke call
10561 * which has SetLastError set.
10564 mono_marshal_set_last_error (void)
10567 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10569 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10574 mono_marshal_set_last_error_windows (int error)
10577 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10582 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10583 gpointer dest, gint32 length)
10588 MONO_ARCH_SAVE_REGS;
10590 MONO_CHECK_ARG_NULL (src);
10591 MONO_CHECK_ARG_NULL (dest);
10593 if (src->obj.vtable->klass->rank != 1)
10594 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10595 if (start_index < 0)
10596 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10598 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10599 if (start_index + length > mono_array_length (src))
10600 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10602 element_size = mono_array_element_size (src->obj.vtable->klass);
10604 /* no references should be involved */
10605 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10607 memcpy (dest, source_addr, length * element_size);
10611 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10612 MonoArray *dest, gint32 length)
10617 MONO_ARCH_SAVE_REGS;
10619 MONO_CHECK_ARG_NULL (src);
10620 MONO_CHECK_ARG_NULL (dest);
10622 if (dest->obj.vtable->klass->rank != 1)
10623 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10624 if (start_index < 0)
10625 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10627 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10628 if (start_index + length > mono_array_length (dest))
10629 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10631 element_size = mono_array_element_size (dest->obj.vtable->klass);
10633 /* no references should be involved */
10634 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10636 memcpy (dest_addr, src, length * element_size);
10639 #if NO_UNALIGNED_ACCESS
10640 #define RETURN_UNALIGNED(type, addr) \
10643 memcpy(&val, p + offset, sizeof(val)); \
10646 #define WRITE_UNALIGNED(type, addr, val) \
10647 memcpy(addr, &val, sizeof(type))
10649 #define RETURN_UNALIGNED(type, addr) \
10650 return *(type*)(p + offset);
10651 #define WRITE_UNALIGNED(type, addr, val) \
10652 (*(type *)(addr) = (val))
10656 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10660 MONO_ARCH_SAVE_REGS;
10662 RETURN_UNALIGNED(gpointer, p + offset);
10666 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10670 MONO_ARCH_SAVE_REGS;
10672 return *(unsigned char*)(p + offset);
10676 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10680 MONO_ARCH_SAVE_REGS;
10682 RETURN_UNALIGNED(gint16, p + offset);
10686 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10690 MONO_ARCH_SAVE_REGS;
10692 RETURN_UNALIGNED(gint32, p + offset);
10696 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10700 MONO_ARCH_SAVE_REGS;
10702 RETURN_UNALIGNED(gint64, p + offset);
10706 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10710 MONO_ARCH_SAVE_REGS;
10712 *(unsigned char*)(p + offset) = val;
10716 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10720 MONO_ARCH_SAVE_REGS;
10722 WRITE_UNALIGNED(gpointer, p + offset, val);
10726 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10730 MONO_ARCH_SAVE_REGS;
10732 WRITE_UNALIGNED(gint16, p + offset, val);
10736 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10740 MONO_ARCH_SAVE_REGS;
10742 WRITE_UNALIGNED(gint32, p + offset, val);
10746 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10750 MONO_ARCH_SAVE_REGS;
10752 WRITE_UNALIGNED(gint64, p + offset, val);
10756 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10758 MONO_ARCH_SAVE_REGS;
10763 return mono_string_new (mono_domain_get (), ptr);
10767 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10769 MONO_ARCH_SAVE_REGS;
10772 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10773 g_assert_not_reached ();
10776 return mono_string_new_len (mono_domain_get (), ptr, len);
10781 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10783 MonoDomain *domain = mono_domain_get ();
10787 MONO_ARCH_SAVE_REGS;
10795 return mono_string_new_utf16 (domain, ptr, len);
10799 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10801 MonoDomain *domain = mono_domain_get ();
10803 MONO_ARCH_SAVE_REGS;
10806 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10807 g_assert_not_reached ();
10810 return mono_string_new_utf16 (domain, ptr, len);
10815 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10817 MONO_ARCH_SAVE_REGS;
10819 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10823 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10829 MONO_ARCH_SAVE_REGS;
10831 MONO_CHECK_ARG_NULL (rtype);
10833 type = rtype->type;
10834 klass = mono_class_from_mono_type (type);
10835 if (!mono_class_init (klass))
10836 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10838 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10840 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10842 MonoException *exc;
10844 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10845 exc = mono_get_exception_argument ("t", msg);
10847 mono_raise_exception (exc);
10851 return mono_class_native_size (klass, NULL);
10855 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10857 MonoMethod *method;
10860 MONO_ARCH_SAVE_REGS;
10862 MONO_CHECK_ARG_NULL (obj);
10863 MONO_CHECK_ARG_NULL (dst);
10865 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10869 pa [2] = &delete_old;
10871 mono_runtime_invoke (method, NULL, pa, NULL);
10875 ptr_to_structure (gpointer src, MonoObject *dst)
10877 MonoMethod *method;
10880 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10885 mono_runtime_invoke (method, NULL, pa, NULL);
10889 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10893 MONO_ARCH_SAVE_REGS;
10895 MONO_CHECK_ARG_NULL (src);
10896 MONO_CHECK_ARG_NULL (dst);
10898 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10900 if (t->type == MONO_TYPE_VALUETYPE) {
10901 MonoException *exc;
10904 tmp = g_strdup_printf ("Destination is a boxed value type.");
10905 exc = mono_get_exception_argument ("dst", tmp);
10908 mono_raise_exception (exc);
10912 ptr_to_structure (src, dst);
10916 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10919 MonoDomain *domain = mono_domain_get ();
10922 MONO_ARCH_SAVE_REGS;
10924 MONO_CHECK_ARG_NULL (src);
10925 MONO_CHECK_ARG_NULL (type);
10927 klass = mono_class_from_mono_type (type->type);
10928 if (!mono_class_init (klass))
10929 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10931 res = mono_object_new (domain, klass);
10933 ptr_to_structure (src, res);
10939 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10941 MonoMarshalType *info;
10944 int match_index = -1;
10946 MONO_ARCH_SAVE_REGS;
10948 MONO_CHECK_ARG_NULL (type);
10949 MONO_CHECK_ARG_NULL (field_name);
10951 fname = mono_string_to_utf8 (field_name);
10952 klass = mono_class_from_mono_type (type->type);
10953 if (!mono_class_init (klass))
10954 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10956 while (klass && match_index == -1) {
10957 MonoClassField* field;
10959 gpointer iter = NULL;
10960 while ((field = mono_class_get_fields (klass, &iter))) {
10961 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10963 if (!strcmp (fname, mono_field_get_name (field))) {
10970 if (match_index == -1)
10971 klass = klass->parent;
10976 if(match_index == -1) {
10977 MonoException* exc;
10980 /* Get back original class instance */
10981 klass = mono_class_from_mono_type (type->type);
10983 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10984 exc = mono_get_exception_argument ("fieldName", tmp);
10987 mono_raise_exception ((MonoException*)exc);
10990 info = mono_marshal_load_type_info (klass);
10991 return info->fields [match_index].offset;
10995 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11000 tres = mono_string_to_utf8 (string);
11004 len = strlen (tres) + 1;
11005 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11006 memcpy (ret, tres, len);
11011 return mono_string_to_utf8 (string);
11016 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11018 MONO_ARCH_SAVE_REGS;
11020 if (string == NULL)
11023 #ifdef TARGET_WIN32
11024 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11025 ((mono_string_length (string) + 1) * 2);
11027 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11029 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11030 res [mono_string_length (string)] = 0;
11036 mono_struct_delete_old (MonoClass *klass, char *ptr)
11038 MonoMarshalType *info;
11041 info = mono_marshal_load_type_info (klass);
11043 for (i = 0; i < info->num_fields; i++) {
11044 MonoMarshalNative ntype;
11045 MonoMarshalConv conv;
11046 MonoType *ftype = info->fields [i].field->type;
11049 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11052 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11053 klass->unicode, &conv);
11055 cpos = ptr + info->fields [i].offset;
11058 case MONO_MARSHAL_CONV_NONE:
11059 if (MONO_TYPE_ISSTRUCT (ftype)) {
11060 mono_struct_delete_old (ftype->data.klass, cpos);
11064 case MONO_MARSHAL_CONV_STR_LPWSTR:
11065 /* We assume this field points inside a MonoString */
11067 case MONO_MARSHAL_CONV_STR_LPTSTR:
11068 #ifdef TARGET_WIN32
11069 /* We assume this field points inside a MonoString
11073 case MONO_MARSHAL_CONV_STR_LPSTR:
11074 case MONO_MARSHAL_CONV_STR_BSTR:
11075 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11076 case MONO_MARSHAL_CONV_STR_TBSTR:
11077 mono_marshal_free (*(gpointer *)cpos);
11087 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11091 MONO_ARCH_SAVE_REGS;
11093 MONO_CHECK_ARG_NULL (src);
11094 MONO_CHECK_ARG_NULL (type);
11096 klass = mono_class_from_mono_type (type->type);
11097 if (!mono_class_init (klass))
11098 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11100 mono_struct_delete_old (klass, (char *)src);
11104 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11108 MONO_ARCH_SAVE_REGS;
11110 if ((gulong)size == 0)
11111 /* This returns a valid pointer for size 0 on MS.NET */
11115 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11117 res = g_try_malloc ((gulong)size);
11120 mono_gc_out_of_memory ((gulong)size);
11126 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11131 mono_gc_out_of_memory ((gulong)size);
11136 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11138 res = g_try_realloc (ptr, (gulong)size);
11141 mono_gc_out_of_memory ((gulong)size);
11147 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11149 MONO_ARCH_SAVE_REGS;
11159 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11161 MONO_ARCH_SAVE_REGS;
11164 return CoTaskMemAlloc (size);
11166 return g_try_malloc ((gulong)size);
11171 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11173 MONO_ARCH_SAVE_REGS;
11176 CoTaskMemFree (ptr);
11183 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11185 MONO_ARCH_SAVE_REGS;
11188 return CoTaskMemRealloc (ptr, size);
11190 return g_try_realloc (ptr, (gulong)size);
11195 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11197 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11201 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11203 MonoClass *klass = mono_type_get_class (type->type);
11204 if (!mono_class_init (klass))
11205 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11207 return mono_ftnptr_to_delegate (klass, ftn);
11211 * mono_marshal_is_loading_type_info:
11213 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11217 mono_marshal_is_loading_type_info (MonoClass *klass)
11219 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11221 return g_slist_find (loads_list, klass) != NULL;
11225 * mono_marshal_load_type_info:
11227 * Initialize klass->marshal_info using information from metadata. This function can
11228 * recursively call itself, and the caller is responsible to avoid that by calling
11229 * mono_marshal_is_loading_type_info () beforehand.
11231 * LOCKING: Acquires the loader lock.
11234 mono_marshal_load_type_info (MonoClass* klass)
11237 guint32 native_size = 0, min_align = 1, packing;
11238 MonoMarshalType *info;
11239 MonoClassField* field;
11242 GSList *loads_list;
11244 g_assert (klass != NULL);
11246 if (klass->marshal_info)
11247 return klass->marshal_info;
11249 if (!klass->inited)
11250 mono_class_init (klass);
11252 mono_loader_lock ();
11254 if (klass->marshal_info) {
11255 mono_loader_unlock ();
11256 return klass->marshal_info;
11260 * This function can recursively call itself, so we keep the list of classes which are
11261 * under initialization in a TLS list.
11263 g_assert (!mono_marshal_is_loading_type_info (klass));
11264 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11265 loads_list = g_slist_prepend (loads_list, klass);
11266 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11269 while ((field = mono_class_get_fields (klass, &iter))) {
11270 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11272 if (mono_field_is_deleted (field))
11277 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11279 /* The mempool is protected by the loader lock */
11280 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11281 info->num_fields = count;
11283 /* Try to find a size for this type in metadata */
11284 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11286 if (klass->parent) {
11287 int parent_size = mono_class_native_size (klass->parent, NULL);
11289 /* Add parent size to real size */
11290 native_size += parent_size;
11291 info->native_size = parent_size;
11294 packing = klass->packing_size ? klass->packing_size : 8;
11297 while ((field = mono_class_get_fields (klass, &iter))) {
11301 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11304 if (mono_field_is_deleted (field))
11306 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11307 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11308 NULL, NULL, &info->fields [j].mspec);
11310 info->fields [j].field = field;
11312 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11313 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11314 /* This field is a hack inserted by MCS to empty structures */
11319 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11320 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11321 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11322 &align, TRUE, klass->unicode);
11323 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11324 min_align = MAX (align, min_align);
11325 info->fields [j].offset = info->native_size;
11326 info->fields [j].offset += align - 1;
11327 info->fields [j].offset &= ~(align - 1);
11328 info->native_size = info->fields [j].offset + size;
11330 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11331 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11332 &align, TRUE, klass->unicode);
11333 min_align = packing;
11334 info->fields [j].offset = field->offset - sizeof (MonoObject);
11335 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11341 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11342 info->native_size = MAX (native_size, info->native_size);
11344 * If the provided Size is equal or larger than the calculated size, and there
11345 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11347 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
11348 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11352 if (info->native_size & (min_align - 1)) {
11353 info->native_size += min_align - 1;
11354 info->native_size &= ~(min_align - 1);
11357 info->min_align = min_align;
11359 /* Update the class's blittable info, if the layouts don't match */
11360 if (info->native_size != mono_class_value_size (klass, NULL))
11361 klass->blittable = FALSE;
11363 /* If this is an array type, ensure that we have element info */
11364 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11365 mono_marshal_load_type_info (klass->element_class);
11368 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11369 loads_list = g_slist_remove (loads_list, klass);
11370 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11372 /*We do double-checking locking on marshal_info */
11373 mono_memory_barrier ();
11375 klass->marshal_info = info;
11377 mono_loader_unlock ();
11379 return klass->marshal_info;
11383 * mono_class_native_size:
11386 * Returns: the native size of an object instance (when marshaled
11387 * to unmanaged code)
11390 mono_class_native_size (MonoClass *klass, guint32 *align)
11392 if (!klass->marshal_info) {
11393 if (mono_marshal_is_loading_type_info (klass)) {
11398 mono_marshal_load_type_info (klass);
11403 *align = klass->marshal_info->min_align;
11405 return klass->marshal_info->native_size;
11408 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11409 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11410 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11411 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11414 * mono_type_native_stack_size:
11415 * @t: the type to return the size it uses on the stack
11417 * Returns: the number of bytes required to hold an instance of this
11418 * type on the native stack
11421 mono_type_native_stack_size (MonoType *t, guint32 *align)
11425 g_assert (t != NULL);
11431 *align = sizeof (gpointer);
11432 return sizeof (gpointer);
11436 case MONO_TYPE_BOOLEAN:
11437 case MONO_TYPE_CHAR:
11448 case MONO_TYPE_STRING:
11449 case MONO_TYPE_OBJECT:
11450 case MONO_TYPE_CLASS:
11451 case MONO_TYPE_SZARRAY:
11452 case MONO_TYPE_PTR:
11453 case MONO_TYPE_FNPTR:
11454 case MONO_TYPE_ARRAY:
11455 *align = sizeof (gpointer);
11456 return sizeof (gpointer);
11461 *align = ALIGNMENT (gdouble);
11465 *align = ALIGNMENT (glong);
11467 case MONO_TYPE_GENERICINST:
11468 if (!mono_type_generic_inst_is_valuetype (t)) {
11469 *align = sizeof (gpointer);
11470 return sizeof (gpointer);
11473 case MONO_TYPE_TYPEDBYREF:
11474 case MONO_TYPE_VALUETYPE: {
11476 MonoClass *klass = mono_class_from_mono_type (t);
11478 if (klass->enumtype)
11479 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11481 size = mono_class_native_size (klass, align);
11482 *align = *align + 3;
11492 g_error ("type 0x%02x unknown", t->type);
11498 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11499 gboolean as_field, gboolean unicode)
11501 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11504 switch (native_type) {
11505 case MONO_NATIVE_BOOLEAN:
11508 case MONO_NATIVE_I1:
11509 case MONO_NATIVE_U1:
11512 case MONO_NATIVE_I2:
11513 case MONO_NATIVE_U2:
11514 case MONO_NATIVE_VARIANTBOOL:
11517 case MONO_NATIVE_I4:
11518 case MONO_NATIVE_U4:
11519 case MONO_NATIVE_ERROR:
11522 case MONO_NATIVE_I8:
11523 case MONO_NATIVE_U8:
11524 *align = ALIGNMENT(guint64);
11526 case MONO_NATIVE_R4:
11529 case MONO_NATIVE_R8:
11530 *align = ALIGNMENT(double);
11532 case MONO_NATIVE_INT:
11533 case MONO_NATIVE_UINT:
11534 case MONO_NATIVE_LPSTR:
11535 case MONO_NATIVE_LPWSTR:
11536 case MONO_NATIVE_LPTSTR:
11537 case MONO_NATIVE_BSTR:
11538 case MONO_NATIVE_ANSIBSTR:
11539 case MONO_NATIVE_TBSTR:
11540 case MONO_NATIVE_LPARRAY:
11541 case MONO_NATIVE_SAFEARRAY:
11542 case MONO_NATIVE_IUNKNOWN:
11543 case MONO_NATIVE_IDISPATCH:
11544 case MONO_NATIVE_INTERFACE:
11545 case MONO_NATIVE_ASANY:
11546 case MONO_NATIVE_FUNC:
11547 case MONO_NATIVE_LPSTRUCT:
11548 *align = ALIGNMENT(gpointer);
11549 return sizeof (gpointer);
11550 case MONO_NATIVE_STRUCT:
11551 klass = mono_class_from_mono_type (type);
11552 if (klass == mono_defaults.object_class &&
11553 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11557 return mono_class_native_size (klass, align);
11558 case MONO_NATIVE_BYVALTSTR: {
11559 int esize = unicode ? 2: 1;
11562 return mspec->data.array_data.num_elem * esize;
11564 case MONO_NATIVE_BYVALARRAY: {
11565 // FIXME: Have to consider ArraySubType
11567 klass = mono_class_from_mono_type (type);
11568 if (klass->element_class == mono_defaults.char_class) {
11569 esize = unicode ? 2 : 1;
11572 esize = mono_class_native_size (klass->element_class, align);
11575 return mspec->data.array_data.num_elem * esize;
11577 case MONO_NATIVE_CUSTOM:
11578 *align = sizeof (gpointer);
11579 return sizeof (gpointer);
11581 case MONO_NATIVE_CURRENCY:
11582 case MONO_NATIVE_VBBYREFSTR:
11584 g_error ("native type %02x not implemented", native_type);
11587 g_assert_not_reached ();
11592 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11600 t = &o->vtable->klass->byval_arg;
11604 case MONO_TYPE_PTR:
11607 case MONO_TYPE_BOOLEAN:
11610 case MONO_TYPE_CHAR:
11615 return mono_object_unbox (o);
11617 case MONO_TYPE_STRING:
11618 switch (string_encoding) {
11619 case MONO_NATIVE_LPWSTR:
11620 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11622 case MONO_NATIVE_LPSTR:
11623 return mono_string_to_lpstr ((MonoString*)o);
11626 g_warning ("marshaling conversion %d not implemented", string_encoding);
11627 g_assert_not_reached ();
11630 case MONO_TYPE_CLASS:
11631 case MONO_TYPE_VALUETYPE: {
11632 MonoMethod *method;
11635 MonoBoolean delete_old = FALSE;
11637 klass = t->data.klass;
11639 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11642 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11643 klass->blittable || klass->enumtype))
11644 return mono_object_unbox (o);
11646 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11648 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11649 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11653 pa [2] = &delete_old;
11655 mono_runtime_invoke (method, NULL, pa, NULL);
11662 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11668 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11676 t = &o->vtable->klass->byval_arg;
11678 case MONO_TYPE_STRING:
11679 switch (string_encoding) {
11680 case MONO_NATIVE_LPWSTR:
11681 case MONO_NATIVE_LPSTR:
11682 mono_marshal_free (ptr);
11685 g_warning ("marshaling conversion %d not implemented", string_encoding);
11686 g_assert_not_reached ();
11689 case MONO_TYPE_CLASS:
11690 case MONO_TYPE_VALUETYPE: {
11691 klass = t->data.klass;
11693 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11694 klass->blittable || klass->enumtype))
11697 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11698 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11704 mono_runtime_invoke (method, NULL, pa, NULL);
11707 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11708 mono_struct_delete_old (klass, ptr);
11711 mono_marshal_free (ptr);
11720 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11722 MonoMethodSignature *sig, *csig;
11723 MonoMethodBuilder *mb;
11727 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11728 mb->method->slot = -1;
11730 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11731 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11733 sig = mono_method_signature (method);
11734 csig = signature_dup (method->klass->image, sig);
11735 csig->generic_param_count = 0;
11737 mono_mb_emit_ldarg (mb, 0);
11738 for (i = 0; i < csig->param_count; i++)
11739 mono_mb_emit_ldarg (mb, i + 1);
11740 mono_mb_emit_managed_call (mb, method, NULL);
11741 mono_mb_emit_byte (mb, CEE_RET);
11743 /* We can corlib internal methods */
11744 mb->skip_visibility = TRUE;
11746 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11754 * The mono_win32_compat_* functions are implementations of inline
11755 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11756 * although not exported by kernel32.
11758 * We map the appropiate kernel32 entries to these functions using
11759 * dllmaps declared in the global etc/mono/config.
11763 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11765 if (!dest || !source)
11768 memcpy (dest, source, length);
11772 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11774 memset (dest, fill, length);
11778 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11780 if (!dest || !source)
11783 memmove (dest, source, length);
11787 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11789 memset (dest, 0, length);
11793 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11798 for (i = 0; i < len; ++i)
11802 g_assert (i < len);
11805 while (byte && !(byte & 1))
11807 g_assert (byte == 1);
11810 *bitmask = buf [i];
11814 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11816 MonoMethodBuilder *mb;
11817 MonoMethodSignature *sig, *csig;
11818 MonoExceptionClause *clause;
11823 int i, param_count, sig_size, pos_leave;
11827 klass = method->klass;
11828 image = method->klass->image;
11829 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11831 if ((res = mono_marshal_find_in_cache (cache, method)))
11834 sig = mono_method_signature (method);
11835 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11837 /* add "this" and exception param */
11838 param_count = sig->param_count + sig->hasthis + 1;
11840 /* dup & extend signature */
11841 csig = mono_metadata_signature_alloc (image, param_count);
11842 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11843 memcpy (csig, sig, sig_size);
11844 csig->param_count = param_count;
11847 csig->call_convention = MONO_CALL_DEFAULT;
11849 if (sig->hasthis) {
11851 csig->params [0] = &klass->byval_arg;
11852 /* move params up by one */
11853 for (i = 0; i < sig->param_count; i++)
11854 csig->params [i + 1] = sig->params [i];
11857 /* setup exception param as byref+[out] */
11858 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11859 &mono_defaults.exception_class->byval_arg);
11860 csig->params [param_count - 1]->byref = 1;
11861 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11863 /* convert struct return to object */
11864 if (MONO_TYPE_ISSTRUCT (sig->ret))
11865 csig->ret = &mono_defaults.object_class->byval_arg;
11867 /* local 0 (temp for exception object) */
11868 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11870 /* local 1 (temp for result) */
11871 if (!MONO_TYPE_IS_VOID (sig->ret))
11872 mono_mb_add_local (mb, sig->ret);
11874 /* clear exception arg */
11875 mono_mb_emit_ldarg (mb, param_count - 1);
11876 mono_mb_emit_byte (mb, CEE_LDNULL);
11877 mono_mb_emit_byte (mb, CEE_STIND_REF);
11880 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11881 clause->try_offset = mono_mb_get_label (mb);
11883 /* push method's args */
11884 for (i = 0; i < param_count - 1; i++) {
11888 mono_mb_emit_ldarg (mb, i);
11890 /* get the byval type of the param */
11891 klass = mono_class_from_mono_type (csig->params [i]);
11892 type = &klass->byval_arg;
11894 /* unbox struct args */
11895 if (MONO_TYPE_ISSTRUCT (type)) {
11896 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11898 /* byref args & and the "this" arg must remain a ptr.
11899 Otherwise make a copy of the value type */
11900 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11901 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11903 csig->params [i] = &mono_defaults.object_class->byval_arg;
11908 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11909 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11911 mono_mb_emit_op (mb, CEE_CALL, method);
11913 /* save result at local 1 */
11914 if (!MONO_TYPE_IS_VOID (sig->ret))
11915 mono_mb_emit_stloc (mb, 1);
11917 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11920 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11921 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11922 clause->data.catch_class = mono_defaults.object_class;
11924 clause->handler_offset = mono_mb_get_label (mb);
11926 /* store exception at local 0 */
11927 mono_mb_emit_stloc (mb, 0);
11928 mono_mb_emit_ldarg (mb, param_count - 1);
11929 mono_mb_emit_ldloc (mb, 0);
11930 mono_mb_emit_byte (mb, CEE_STIND_REF);
11931 mono_mb_emit_branch (mb, CEE_LEAVE);
11933 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11935 mono_mb_set_clauses (mb, 1, clause);
11937 mono_mb_patch_branch (mb, pos_leave);
11940 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11941 mono_mb_emit_ldloc (mb, 1);
11943 /* box the return value */
11944 if (MONO_TYPE_ISSTRUCT (sig->ret))
11945 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11948 mono_mb_emit_byte (mb, CEE_RET);
11950 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11957 * mono_marshal_free_dynamic_wrappers:
11959 * Free wrappers of the dynamic method METHOD.
11962 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11964 MonoImage *image = method->klass->image;
11966 g_assert (method->dynamic);
11968 /* This could be called during shutdown */
11969 if (marshal_mutex_initialized)
11970 mono_marshal_lock ();
11972 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11973 * they could be shared with other methods ?
11975 if (image->runtime_invoke_direct_cache)
11976 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11977 if (image->delegate_bound_static_invoke_cache)
11978 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
11979 if (image->delegate_abstract_invoke_cache)
11980 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
11982 if (marshal_mutex_initialized)
11983 mono_marshal_unlock ();
11987 * mono_marshal_free_inflated_wrappers:
11989 * Free wrappers of the inflated method METHOD.
11993 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
11995 SignatureMethodPair *pair = (SignatureMethodPair*)key;
11996 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
11998 return mono_metadata_signature_equal (pair->sig, sig);
12002 mono_marshal_free_inflated_wrappers (MonoMethod *method)
12004 MonoMethodSignature *sig = method->signature;
12006 g_assert (method->is_inflated);
12008 /* Ignore calls occuring late during cleanup. */
12009 if (!marshal_mutex_initialized)
12012 mono_marshal_lock ();
12014 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12015 * they could be shared with other methods ?
12019 * indexed by MonoMethodSignature
12021 /* FIXME: This could remove unrelated wrappers as well */
12022 if (sig && method->klass->image->delegate_begin_invoke_cache)
12023 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12024 if (sig && method->klass->image->delegate_end_invoke_cache)
12025 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12026 if (sig && method->klass->image->delegate_invoke_cache)
12027 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12028 if (sig && method->klass->image->runtime_invoke_cache)
12029 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12032 * indexed by SignatureMethodPair
12034 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12035 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12036 signature_method_pair_matches_signature, (gpointer)sig);
12038 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12039 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12040 signature_method_pair_matches_signature, (gpointer)sig);
12043 * indexed by MonoMethod pointers
12045 if (method->klass->image->runtime_invoke_direct_cache)
12046 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12047 if (method->klass->image->managed_wrapper_cache)
12048 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12049 if (method->klass->image->native_wrapper_cache)
12050 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12051 if (method->klass->image->remoting_invoke_cache)
12052 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12053 if (method->klass->image->synchronized_cache)
12054 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12055 if (method->klass->image->unbox_wrapper_cache)
12056 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12057 if (method->klass->image->cominterop_invoke_cache)
12058 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12059 if (method->klass->image->cominterop_wrapper_cache)
12060 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12061 if (method->klass->image->thunk_invoke_cache)
12062 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12064 mono_marshal_unlock ();