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"
40 #include "mono/utils/mono-memory-model.h"
44 /* #define DEBUG_RUNTIME_CODE */
46 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
50 MONO_MARSHAL_NONE, /* No marshalling needed */
51 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
52 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
53 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
54 } MonoXDomainMarshalType;
57 #include "mono/cil/opcode.def"
62 struct _MonoRemotingMethods {
64 MonoMethod *invoke_with_check;
65 MonoMethod *xdomain_invoke;
66 MonoMethod *xdomain_dispatch;
69 typedef struct _MonoRemotingMethods MonoRemotingMethods;
72 * This mutex protects the various marshalling related caches in MonoImage
73 * and a few other data structures static to this file.
74 * Note that when this lock is held it is not possible to take other runtime
75 * locks like the loader lock.
77 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
78 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
79 static CRITICAL_SECTION marshal_mutex;
80 static gboolean marshal_mutex_initialized;
82 static MonoNativeTlsKey last_error_tls_id;
84 static MonoNativeTlsKey load_type_info_tls_id;
87 delegate_hash_table_add (MonoDelegate *d);
90 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
93 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
96 mono_struct_delete_old (MonoClass *klass, char *ptr);
99 mono_marshal_string_to_utf16 (MonoString *s);
102 mono_marshal_string_to_utf16_copy (MonoString *s);
105 mono_string_to_lpstr (MonoString *string_obj);
107 static MonoStringBuilder *
108 mono_string_utf8_to_builder2 (char *text);
110 static MonoStringBuilder *
111 mono_string_utf16_to_builder2 (gunichar2 *text);
114 mono_string_new_len_wrapper (const char *text, guint length);
117 mono_string_from_byvalwstr (gunichar2 *data, int len);
120 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
123 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
126 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
128 static MonoAsyncResult *
129 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
135 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
138 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
141 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
144 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
146 static MonoReflectionType *
147 type_from_handle (MonoType *handle);
150 mono_marshal_set_last_error_windows (int error);
152 static void init_safe_handle (void);
154 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
155 static MonoMethod *sh_dangerous_add_ref;
156 static MonoMethod *sh_dangerous_release;
162 sh_dangerous_add_ref = mono_class_get_method_from_name (
163 mono_defaults.safehandle_class, "DangerousAddRef", 1);
164 sh_dangerous_release = mono_class_get_method_from_name (
165 mono_defaults.safehandle_class, "DangerousRelease", 0);
169 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
171 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
173 mono_register_jit_icall (func, name, sig, save);
176 static MonoMethodSignature*
177 signature_dup (MonoImage *image, MonoMethodSignature *sig)
179 MonoMethodSignature *res;
182 res = mono_metadata_signature_alloc (image, sig->param_count);
183 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
184 memcpy (res, sig, sigsize);
190 mono_signature_no_pinvoke (MonoMethod *method)
192 MonoMethodSignature *sig = mono_method_signature (method);
194 sig = signature_dup (method->klass->image, sig);
195 sig->pinvoke = FALSE;
202 mono_marshal_init (void)
204 static gboolean module_initialized = FALSE;
206 if (!module_initialized) {
207 module_initialized = TRUE;
208 InitializeCriticalSection (&marshal_mutex);
209 marshal_mutex_initialized = TRUE;
210 mono_native_tls_alloc (&last_error_tls_id, NULL);
211 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
213 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
214 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
215 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
216 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
217 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
218 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
219 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
220 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
221 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
222 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
223 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
224 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
225 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
226 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
227 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
228 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
229 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
230 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
231 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
232 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
233 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
234 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
235 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
236 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
237 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
238 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
239 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
240 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
241 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
242 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
243 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
244 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
245 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
246 register_icall (g_free, "g_free", "void ptr", FALSE);
247 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
248 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
249 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
250 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
251 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
252 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
253 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
254 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
255 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
256 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
257 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
258 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
259 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
260 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
261 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
262 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
264 mono_cominterop_init ();
269 mono_marshal_cleanup (void)
271 mono_cominterop_cleanup ();
273 mono_native_tls_free (load_type_info_tls_id);
274 mono_native_tls_free (last_error_tls_id);
275 DeleteCriticalSection (&marshal_mutex);
276 marshal_mutex_initialized = FALSE;
279 MonoClass *byte_array_class;
280 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
281 static MonoMethod *method_set_context, *method_get_context;
282 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
285 mono_remoting_marshal_init (void)
289 static gboolean module_initialized = FALSE;
291 if (!module_initialized) {
292 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
293 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
294 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
295 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
297 klass = mono_defaults.real_proxy_class;
298 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
300 klass = mono_defaults.exception_class;
301 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
303 klass = mono_defaults.thread_class;
304 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
306 klass = mono_defaults.appdomain_class;
307 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
308 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
310 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
311 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
313 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
314 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
316 module_initialized = TRUE;
321 mono_delegate_to_ftnptr (MonoDelegate *delegate)
323 MonoMethod *method, *wrapper;
325 uint32_t target_handle = 0;
330 if (delegate->delegate_trampoline)
331 return delegate->delegate_trampoline;
333 klass = ((MonoObject *)delegate)->vtable->klass;
334 g_assert (klass->delegate);
336 method = delegate->method;
338 if (mono_method_signature (method)->pinvoke) {
339 const char *exc_class, *exc_arg;
342 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
344 g_assert (exc_class);
345 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
350 if (delegate->target) {
351 /* Produce a location which can be embedded in JITted code */
352 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
355 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
357 delegate->delegate_trampoline = mono_compile_method (wrapper);
359 // Add the delegate to the delegate hash table
360 delegate_hash_table_add (delegate);
362 /* when the object is collected, collect the dynamic method, too */
363 mono_object_register_finalizer ((MonoObject*)delegate);
365 return delegate->delegate_trampoline;
369 * this hash table maps from a delegate trampoline object to a weak reference
370 * of the delegate. As an optimizations with a non-moving GC we store the
371 * object pointer itself, otherwise we use a GC handle.
373 static GHashTable *delegate_hash_table;
376 delegate_hash_table_new (void) {
377 return g_hash_table_new (NULL, NULL);
381 delegate_hash_table_remove (MonoDelegate *d)
383 #ifdef HAVE_MOVING_COLLECTOR
386 mono_marshal_lock ();
387 if (delegate_hash_table == NULL)
388 delegate_hash_table = delegate_hash_table_new ();
389 #ifdef HAVE_MOVING_COLLECTOR
390 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
392 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
393 mono_marshal_unlock ();
394 #ifdef HAVE_MOVING_COLLECTOR
395 mono_gchandle_free (gchandle);
400 delegate_hash_table_add (MonoDelegate *d)
402 #ifdef HAVE_MOVING_COLLECTOR
403 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
404 guint32 old_gchandle;
406 mono_marshal_lock ();
407 if (delegate_hash_table == NULL)
408 delegate_hash_table = delegate_hash_table_new ();
409 #ifdef HAVE_MOVING_COLLECTOR
410 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
411 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
413 mono_gchandle_free (old_gchandle);
415 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
417 mono_marshal_unlock ();
421 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
423 #ifdef HAVE_MOVING_COLLECTOR
431 mono_marshal_lock ();
432 if (delegate_hash_table == NULL)
433 delegate_hash_table = delegate_hash_table_new ();
435 #ifdef HAVE_MOVING_COLLECTOR
436 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
437 mono_marshal_unlock ();
439 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
443 d = g_hash_table_lookup (delegate_hash_table, ftn);
444 mono_marshal_unlock ();
447 /* This is a native function, so construct a delegate for it */
448 static MonoClass *UnmanagedFunctionPointerAttribute;
449 MonoMethodSignature *sig;
451 MonoMarshalSpec **mspecs;
452 MonoCustomAttrInfo *cinfo;
453 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
454 MonoMethod *invoke = mono_get_delegate_invoke (klass);
455 MonoMethodPInvoke piinfo;
458 memset (&piinfo, 0, sizeof (piinfo));
459 if (!UnmanagedFunctionPointerAttribute)
460 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
462 /* The attribute is only available in Net 2.0 */
463 if (UnmanagedFunctionPointerAttribute) {
465 * The pinvoke attributes are stored in a real custom attribute so we have to
468 cinfo = mono_custom_attrs_from_class (klass);
470 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
472 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
475 mono_custom_attrs_free (cinfo);
479 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
480 mono_method_get_marshal_info (invoke, mspecs);
481 /* Freed below so don't alloc from mempool */
482 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
485 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
487 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
489 mono_metadata_free_marshal_spec (mspecs [i]);
493 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
494 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
497 if (d->object.vtable->domain != mono_domain_get ())
498 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
504 mono_delegate_free_ftnptr (MonoDelegate *delegate)
509 delegate_hash_table_remove (delegate);
511 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
513 if (!delegate->target) {
514 /* The wrapper method is shared between delegates -> no need to free it */
521 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
524 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
526 /*the target gchandle is the first entry after size and the wrapper itself.*/
527 gchandle = GPOINTER_TO_UINT (method_data [2]);
530 mono_gchandle_free (gchandle);
532 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
537 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
539 MonoDomain *domain = mono_domain_get ();
545 while (data [len]) len++;
547 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
551 mono_array_to_savearray (MonoArray *array)
556 g_assert_not_reached ();
561 mono_array_to_lparray (MonoArray *array)
563 gpointer *nativeArray = NULL;
564 int nativeArraySize = 0;
573 klass = array->obj.vtable->klass;
575 switch (klass->element_class->byval_arg.type) {
577 g_assert_not_reached ();
580 case MONO_TYPE_CLASS:
581 nativeArraySize = array->max_length;
582 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
583 for(i = 0; i < nativeArraySize; ++i)
584 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
588 case MONO_TYPE_BOOLEAN:
601 case MONO_TYPE_VALUETYPE:
605 case MONO_TYPE_GENERICINST:
606 case MONO_TYPE_OBJECT:
607 case MONO_TYPE_ARRAY:
608 case MONO_TYPE_SZARRAY:
609 case MONO_TYPE_STRING:
611 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
612 g_assert_not_reached ();
615 return array->vector;
619 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
630 klass = array->obj.vtable->klass;
632 switch (klass->element_class->byval_arg.type) {
633 case MONO_TYPE_CLASS:
634 for(i = 0; i < array->max_length; ++i)
635 mono_marshal_free_ccw(nativeArray[i]);
643 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
645 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
647 if (elclass == mono_defaults.byte_class) {
648 GError *error = NULL;
652 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
655 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
659 g_error_free (error);
662 g_assert_not_reached ();
666 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
668 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
670 if (elclass == mono_defaults.byte_class) {
672 GError *error = NULL;
674 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
676 MonoException *exc = mono_get_exception_argument ("string", error->message);
677 g_error_free (error);
678 mono_raise_exception (exc);
681 memcpy (native_arr, as, MIN (strlen (as), elnum));
684 g_assert_not_reached ();
689 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
691 GError *error = NULL;
701 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
703 if (items_written > mono_stringbuilder_capacity (sb))
704 items_written = mono_stringbuilder_capacity (sb);
707 if (! sb->str || sb->str == sb->cached_str) {
708 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
709 sb->cached_str = NULL;
712 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
713 sb->length = items_written;
715 g_error_free (error);
721 mono_string_utf8_to_builder2 (char *text)
724 MonoStringBuilder *sb;
725 static MonoClass *string_builder_class;
726 static MonoMethod *sb_ctor;
733 if (!string_builder_class) {
734 MonoMethodDesc *desc;
736 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
737 g_assert (string_builder_class);
738 desc = mono_method_desc_new (":.ctor(int)", FALSE);
739 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
741 mono_method_desc_free (desc);
746 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
749 mono_runtime_invoke (sb_ctor, sb, args, &exc);
752 mono_string_utf8_to_builder (sb, text);
758 * FIXME: This routine does not seem to do what it seems to do
759 * the @text is never copied into the string builder
762 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
769 g_assert (mono_string_chars (sb->str) == text);
771 for (len = 0; text [len] != 0; ++len)
778 mono_string_utf16_to_builder2 (gunichar2 *text)
781 MonoStringBuilder *sb;
782 static MonoClass *string_builder_class;
783 static MonoMethod *sb_ctor;
790 if (!string_builder_class) {
791 MonoMethodDesc *desc;
793 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
794 g_assert (string_builder_class);
795 desc = mono_method_desc_new (":.ctor(int)", FALSE);
796 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
798 mono_method_desc_free (desc);
801 for (len = 0; text [len] != 0; ++len)
804 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
807 mono_runtime_invoke (sb_ctor, sb, args, &exc);
811 memcpy (mono_string_chars (sb->str), text, len * 2);
817 * mono_string_builder_to_utf8:
818 * @sb: the string builder
820 * Converts to utf8 the contents of the MonoStringBuilder.
822 * Returns: a utf8 string with the contents of the StringBuilder.
824 * The return value must be released with g_free.
827 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
829 GError *error = NULL;
830 gchar *tmp, *res = NULL;
835 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
837 * The sb could have been allocated with the default capacity and be empty.
838 * we need to alloc a buffer of the default capacity in this case.
840 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
841 sb->cached_str = NULL;
844 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
846 g_error_free (error);
847 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
849 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
850 memcpy (res, tmp, sb->length + 1);
858 * mono_string_builder_to_utf16:
859 * @sb: the string builder
861 * Converts to utf16 the contents of the MonoStringBuilder.
863 * Returns: a utf16 string with the contents of the StringBuilder.
865 * The return value must not be freed.
868 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
876 * The stringbuilder might not have ownership of this string. If this is
877 * the case, we must duplicate the string, so that we don't munge immutable
880 if (sb->str == sb->cached_str) {
882 * The sb could have been allocated with the default capacity and be empty.
883 * we need to alloc a buffer of the default capacity in this case.
885 if (sb->str->length == 0)
886 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
888 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
889 sb->cached_str = NULL;
893 *(mono_string_chars (sb->str)) = '\0';
895 return mono_string_chars (sb->str);
899 mono_string_to_lpstr (MonoString *s)
904 GError *error = NULL;
910 as = CoTaskMemAlloc (1);
915 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
917 MonoException *exc = mono_get_exception_argument ("string", error->message);
918 g_error_free (error);
919 mono_raise_exception(exc);
922 as = CoTaskMemAlloc (len + 1);
923 memcpy (as, tmp, len + 1);
928 return mono_string_to_utf8 (s);
933 mono_string_to_ansibstr (MonoString *string_obj)
935 g_error ("UnmanagedMarshal.BStr is not implemented.");
940 * mono_string_to_byvalstr:
941 * @dst: Where to store the null-terminated utf8 decoded string.
942 * @src: the MonoString to copy.
943 * @size: the maximum number of bytes to copy.
945 * Copies the MonoString pointed to by @src as a utf8 string
946 * into @dst, it copies at most @size bytes into the destination.
949 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
954 g_assert (dst != NULL);
957 memset (dst, 0, size);
961 s = mono_string_to_utf8 (src);
962 len = MIN (size, strlen (s));
965 memcpy (dst, s, len);
970 * mono_string_to_byvalwstr:
971 * @dst: Where to store the null-terminated utf16 decoded string.
972 * @src: the MonoString to copy.
973 * @size: the maximum number of bytes to copy.
975 * Copies the MonoString pointed to by @src as a utf16 string into
976 * @dst, it copies at most @size bytes into the destination (including
977 * a terminating 16-bit zero terminator).
980 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
984 g_assert (dst != NULL);
988 memset (dst, 0, size * 2);
992 len = MIN (size, (mono_string_length (src)));
993 memcpy (dst, mono_string_chars (src), size * 2);
994 if (size <= mono_string_length (src))
996 *((gunichar2 *) dst + len) = 0;
1000 mono_string_new_len_wrapper (const char *text, guint length)
1002 return mono_string_new_len (mono_domain_get (), text, length);
1006 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1009 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1010 mono_mb_emit_byte (mb, CEE_LDIND_I);
1011 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1012 mono_mb_emit_byte (mb, CEE_ADD);
1013 mono_mb_emit_byte (mb, CEE_LDIND_I);
1014 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1015 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1016 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1017 pos = mono_mb_emit_branch (mb, branch_code);
1022 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1025 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1026 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1027 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1028 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1029 mono_mb_emit_icon (mb, -1);
1030 pos = mono_mb_emit_branch (mb, branch_code);
1035 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1037 static int offset = -1;
1041 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1043 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1044 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1045 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1046 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1047 mono_mb_emit_ldflda (mb, offset);
1048 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1049 mono_mb_emit_icon (mb, mask);
1050 mono_mb_emit_byte (mb, CEE_AND);
1051 mono_mb_emit_icon (mb, 0);
1052 return mono_mb_emit_branch (mb, branch_code);
1056 * mono_mb_emit_exception_marshal_directive:
1058 * This function assumes ownership of MSG, which should be malloc-ed.
1061 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1066 s = mono_image_strdup (mb->method->klass->image, msg);
1071 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1075 mono_type_to_ldind (MonoType *type)
1081 switch (type->type) {
1083 return CEE_LDIND_I1;
1085 case MONO_TYPE_BOOLEAN:
1086 return CEE_LDIND_U1;
1088 return CEE_LDIND_I2;
1090 case MONO_TYPE_CHAR:
1091 return CEE_LDIND_U2;
1093 return CEE_LDIND_I4;
1095 return CEE_LDIND_U4;
1099 case MONO_TYPE_FNPTR:
1101 case MONO_TYPE_CLASS:
1102 case MONO_TYPE_STRING:
1103 case MONO_TYPE_OBJECT:
1104 case MONO_TYPE_SZARRAY:
1105 case MONO_TYPE_ARRAY:
1106 return CEE_LDIND_REF;
1109 return CEE_LDIND_I8;
1111 return CEE_LDIND_R4;
1113 return CEE_LDIND_R8;
1114 case MONO_TYPE_VALUETYPE:
1115 if (type->data.klass->enumtype) {
1116 type = mono_class_enum_basetype (type->data.klass);
1120 case MONO_TYPE_TYPEDBYREF:
1122 case MONO_TYPE_GENERICINST:
1123 type = &type->data.generic_class->container_class->byval_arg;
1126 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1132 mono_type_to_stind (MonoType *type)
1138 switch (type->type) {
1141 case MONO_TYPE_BOOLEAN:
1142 return CEE_STIND_I1;
1145 case MONO_TYPE_CHAR:
1146 return CEE_STIND_I2;
1149 return CEE_STIND_I4;
1153 case MONO_TYPE_FNPTR:
1155 case MONO_TYPE_CLASS:
1156 case MONO_TYPE_STRING:
1157 case MONO_TYPE_OBJECT:
1158 case MONO_TYPE_SZARRAY:
1159 case MONO_TYPE_ARRAY:
1160 return CEE_STIND_REF;
1163 return CEE_STIND_I8;
1165 return CEE_STIND_R4;
1167 return CEE_STIND_R8;
1168 case MONO_TYPE_VALUETYPE:
1169 if (type->data.klass->enumtype) {
1170 type = mono_class_enum_basetype (type->data.klass);
1174 case MONO_TYPE_TYPEDBYREF:
1176 case MONO_TYPE_GENERICINST:
1177 type = &type->data.generic_class->container_class->byval_arg;
1180 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1186 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1189 case MONO_MARSHAL_CONV_BOOL_I4:
1190 mono_mb_emit_ldloc (mb, 1);
1191 mono_mb_emit_ldloc (mb, 0);
1192 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1193 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1194 mono_mb_emit_byte (mb, 3);
1195 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1196 mono_mb_emit_byte (mb, CEE_BR_S);
1197 mono_mb_emit_byte (mb, 1);
1198 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1199 mono_mb_emit_byte (mb, CEE_STIND_I1);
1201 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1202 mono_mb_emit_ldloc (mb, 1);
1203 mono_mb_emit_ldloc (mb, 0);
1204 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1205 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1206 mono_mb_emit_byte (mb, 3);
1207 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1208 mono_mb_emit_byte (mb, CEE_BR_S);
1209 mono_mb_emit_byte (mb, 1);
1210 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1211 mono_mb_emit_byte (mb, CEE_STIND_I1);
1213 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1214 MonoClass *eklass = NULL;
1217 if (type->type == MONO_TYPE_SZARRAY) {
1218 eklass = type->data.klass;
1220 g_assert_not_reached ();
1223 esize = mono_class_native_size (eklass, NULL);
1225 /* create a new array */
1226 mono_mb_emit_ldloc (mb, 1);
1227 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1228 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1229 mono_mb_emit_byte (mb, CEE_STIND_I);
1231 if (eklass->blittable) {
1232 /* copy the elements */
1233 mono_mb_emit_ldloc (mb, 1);
1234 mono_mb_emit_byte (mb, CEE_LDIND_I);
1235 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1236 mono_mb_emit_byte (mb, CEE_ADD);
1237 mono_mb_emit_ldloc (mb, 0);
1238 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1239 mono_mb_emit_byte (mb, CEE_PREFIX1);
1240 mono_mb_emit_byte (mb, CEE_CPBLK);
1243 int array_var, src_var, dst_var, index_var;
1244 guint32 label2, label3;
1246 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1247 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1248 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1251 mono_mb_emit_ldloc (mb, 1);
1252 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1253 mono_mb_emit_stloc (mb, array_var);
1255 /* save the old src pointer */
1256 mono_mb_emit_ldloc (mb, 0);
1257 mono_mb_emit_stloc (mb, src_var);
1258 /* save the old dst pointer */
1259 mono_mb_emit_ldloc (mb, 1);
1260 mono_mb_emit_stloc (mb, dst_var);
1262 /* Emit marshalling loop */
1263 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1264 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1265 mono_mb_emit_stloc (mb, index_var);
1268 label2 = mono_mb_get_label (mb);
1269 mono_mb_emit_ldloc (mb, index_var);
1270 mono_mb_emit_ldloc (mb, array_var);
1271 mono_mb_emit_byte (mb, CEE_LDLEN);
1272 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1274 /* src is already set */
1277 mono_mb_emit_ldloc (mb, array_var);
1278 mono_mb_emit_ldloc (mb, index_var);
1279 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1280 mono_mb_emit_stloc (mb, 1);
1282 /* Do the conversion */
1283 emit_struct_conv (mb, eklass, TRUE);
1286 mono_mb_emit_add_to_local (mb, index_var, 1);
1288 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1290 mono_mb_patch_branch (mb, label3);
1292 /* restore the old src pointer */
1293 mono_mb_emit_ldloc (mb, src_var);
1294 mono_mb_emit_stloc (mb, 0);
1295 /* restore the old dst pointer */
1296 mono_mb_emit_ldloc (mb, dst_var);
1297 mono_mb_emit_stloc (mb, 1);
1301 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1302 MonoClass *eclass = mono_defaults.char_class;
1304 /* create a new array */
1305 mono_mb_emit_ldloc (mb, 1);
1306 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1307 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1308 mono_mb_emit_byte (mb, CEE_STIND_REF);
1310 mono_mb_emit_ldloc (mb, 1);
1311 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1312 mono_mb_emit_ldloc (mb, 0);
1313 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1314 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1315 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1318 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1319 mono_mb_emit_ldloc (mb, 1);
1320 mono_mb_emit_ldloc (mb, 0);
1321 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1322 mono_mb_emit_byte (mb, CEE_STIND_REF);
1324 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1325 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1326 mono_mb_emit_ldloc (mb, 1);
1327 mono_mb_emit_ldloc (mb, 0);
1328 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1329 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_icall (mb, mono_string_from_utf16);
1335 mono_mb_emit_byte (mb, CEE_STIND_REF);
1337 case MONO_MARSHAL_CONV_STR_LPTSTR:
1338 mono_mb_emit_ldloc (mb, 1);
1339 mono_mb_emit_ldloc (mb, 0);
1340 mono_mb_emit_byte (mb, CEE_LDIND_I);
1342 mono_mb_emit_icall (mb, mono_string_from_utf16);
1344 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1346 mono_mb_emit_byte (mb, CEE_STIND_REF);
1348 case MONO_MARSHAL_CONV_STR_LPSTR:
1349 mono_mb_emit_ldloc (mb, 1);
1350 mono_mb_emit_ldloc (mb, 0);
1351 mono_mb_emit_byte (mb, CEE_LDIND_I);
1352 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1353 mono_mb_emit_byte (mb, CEE_STIND_REF);
1355 case MONO_MARSHAL_CONV_STR_LPWSTR:
1356 mono_mb_emit_ldloc (mb, 1);
1357 mono_mb_emit_ldloc (mb, 0);
1358 mono_mb_emit_byte (mb, CEE_LDIND_I);
1359 mono_mb_emit_icall (mb, mono_string_from_utf16);
1360 mono_mb_emit_byte (mb, CEE_STIND_REF);
1362 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1363 MonoClass *klass = mono_class_from_mono_type (type);
1364 int src_var, dst_var;
1366 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1367 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1369 /* *dst = new object */
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1372 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1373 mono_mb_emit_byte (mb, CEE_STIND_REF);
1375 /* save the old src pointer */
1376 mono_mb_emit_ldloc (mb, 0);
1377 mono_mb_emit_stloc (mb, src_var);
1378 /* save the old dst pointer */
1379 mono_mb_emit_ldloc (mb, 1);
1380 mono_mb_emit_stloc (mb, dst_var);
1382 /* dst = pointer to newly created object data */
1383 mono_mb_emit_ldloc (mb, 1);
1384 mono_mb_emit_byte (mb, CEE_LDIND_I);
1385 mono_mb_emit_icon (mb, sizeof (MonoObject));
1386 mono_mb_emit_byte (mb, CEE_ADD);
1387 mono_mb_emit_stloc (mb, 1);
1389 emit_struct_conv (mb, klass, TRUE);
1391 /* restore the old src pointer */
1392 mono_mb_emit_ldloc (mb, src_var);
1393 mono_mb_emit_stloc (mb, 0);
1394 /* restore the old dst pointer */
1395 mono_mb_emit_ldloc (mb, dst_var);
1396 mono_mb_emit_stloc (mb, 1);
1399 case MONO_MARSHAL_CONV_DEL_FTN: {
1400 MonoClass *klass = mono_class_from_mono_type (type);
1402 mono_mb_emit_ldloc (mb, 1);
1403 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1404 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1405 mono_mb_emit_ldloc (mb, 0);
1406 mono_mb_emit_byte (mb, CEE_LDIND_I);
1407 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1408 mono_mb_emit_byte (mb, CEE_STIND_REF);
1411 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1412 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1416 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1417 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1418 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1419 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1421 #endif /* DISABLE_COM */
1423 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1425 * Passing SafeHandles as ref does not allow the unmanaged code
1426 * to change the SafeHandle value. If the value is changed,
1427 * we should issue a diagnostic exception (NotSupportedException)
1428 * that informs the user that changes to handles in unmanaged code
1431 * Since we currently have no access to the original
1432 * SafeHandle that was used during the marshalling,
1433 * for now we just ignore this, and ignore/discard any
1434 * changes that might have happened to the handle.
1439 case MONO_MARSHAL_CONV_HANDLEREF: {
1441 * Passing HandleRefs in a struct that is ref()ed does not
1442 * copy the values back to the HandleRef
1447 case MONO_MARSHAL_CONV_STR_BSTR:
1448 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1449 case MONO_MARSHAL_CONV_STR_TBSTR:
1450 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1452 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1454 mono_mb_emit_exception_marshal_directive (mb, msg);
1461 conv_to_icall (MonoMarshalConv conv)
1464 case MONO_MARSHAL_CONV_STR_LPWSTR:
1465 return mono_marshal_string_to_utf16;
1466 case MONO_MARSHAL_CONV_LPWSTR_STR:
1467 return mono_string_from_utf16;
1468 case MONO_MARSHAL_CONV_LPTSTR_STR:
1469 return mono_string_new_wrapper;
1470 case MONO_MARSHAL_CONV_LPSTR_STR:
1471 return mono_string_new_wrapper;
1472 case MONO_MARSHAL_CONV_STR_LPTSTR:
1474 return mono_marshal_string_to_utf16;
1476 return mono_string_to_lpstr;
1478 case MONO_MARSHAL_CONV_STR_LPSTR:
1479 return mono_string_to_lpstr;
1480 case MONO_MARSHAL_CONV_STR_BSTR:
1481 return mono_string_to_bstr;
1482 case MONO_MARSHAL_CONV_BSTR_STR:
1483 return mono_string_from_bstr;
1484 case MONO_MARSHAL_CONV_STR_TBSTR:
1485 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1486 return mono_string_to_ansibstr;
1487 case MONO_MARSHAL_CONV_SB_LPSTR:
1488 return mono_string_builder_to_utf8;
1489 case MONO_MARSHAL_CONV_SB_LPTSTR:
1491 return mono_string_builder_to_utf16;
1493 return mono_string_builder_to_utf8;
1495 case MONO_MARSHAL_CONV_SB_LPWSTR:
1496 return mono_string_builder_to_utf16;
1497 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1498 return mono_array_to_savearray;
1499 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1500 return mono_array_to_lparray;
1501 case MONO_MARSHAL_FREE_LPARRAY:
1502 return mono_free_lparray;
1503 case MONO_MARSHAL_CONV_DEL_FTN:
1504 return mono_delegate_to_ftnptr;
1505 case MONO_MARSHAL_CONV_FTN_DEL:
1506 return mono_ftnptr_to_delegate;
1507 case MONO_MARSHAL_CONV_LPSTR_SB:
1508 return mono_string_utf8_to_builder;
1509 case MONO_MARSHAL_CONV_LPTSTR_SB:
1511 return mono_string_utf16_to_builder;
1513 return mono_string_utf8_to_builder;
1515 case MONO_MARSHAL_CONV_LPWSTR_SB:
1516 return mono_string_utf16_to_builder;
1517 case MONO_MARSHAL_FREE_ARRAY:
1518 return mono_marshal_free_array;
1519 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1520 return mono_string_to_byvalstr;
1521 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1522 return mono_string_to_byvalwstr;
1524 g_assert_not_reached ();
1531 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1536 case MONO_MARSHAL_CONV_BOOL_I4:
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_ldloc (mb, 0);
1539 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1540 mono_mb_emit_byte (mb, CEE_STIND_I4);
1542 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1543 mono_mb_emit_ldloc (mb, 1);
1544 mono_mb_emit_ldloc (mb, 0);
1545 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1546 mono_mb_emit_byte (mb, CEE_NEG);
1547 mono_mb_emit_byte (mb, CEE_STIND_I2);
1549 case MONO_MARSHAL_CONV_STR_LPWSTR:
1550 case MONO_MARSHAL_CONV_STR_LPSTR:
1551 case MONO_MARSHAL_CONV_STR_LPTSTR:
1552 case MONO_MARSHAL_CONV_STR_BSTR:
1553 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1554 case MONO_MARSHAL_CONV_STR_TBSTR: {
1557 /* free space if free == true */
1558 mono_mb_emit_ldloc (mb, 2);
1559 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1560 mono_mb_emit_ldloc (mb, 1);
1561 mono_mb_emit_byte (mb, CEE_LDIND_I);
1562 mono_mb_emit_icall (mb, g_free);
1563 mono_mb_patch_short_branch (mb, pos);
1565 mono_mb_emit_ldloc (mb, 1);
1566 mono_mb_emit_ldloc (mb, 0);
1567 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1568 mono_mb_emit_icall (mb, conv_to_icall (conv));
1569 mono_mb_emit_byte (mb, CEE_STIND_I);
1572 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1573 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1574 case MONO_MARSHAL_CONV_DEL_FTN:
1575 mono_mb_emit_ldloc (mb, 1);
1576 mono_mb_emit_ldloc (mb, 0);
1577 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1578 mono_mb_emit_icall (mb, conv_to_icall (conv));
1579 mono_mb_emit_byte (mb, CEE_STIND_I);
1581 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1582 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1585 mono_mb_emit_ldloc (mb, 1); /* dst */
1586 mono_mb_emit_ldloc (mb, 0);
1587 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1588 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1589 mono_mb_emit_icall (mb, conv_to_icall (conv));
1592 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1593 MonoClass *eklass = NULL;
1596 if (type->type == MONO_TYPE_SZARRAY) {
1597 eklass = type->data.klass;
1599 g_assert_not_reached ();
1602 if (eklass->valuetype)
1603 esize = mono_class_native_size (eklass, NULL);
1605 esize = sizeof (gpointer);
1607 mono_mb_emit_ldloc (mb, 0);
1608 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1609 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1611 if (eklass->blittable) {
1612 mono_mb_emit_ldloc (mb, 1);
1613 mono_mb_emit_ldloc (mb, 0);
1614 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1615 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1616 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1617 mono_mb_emit_byte (mb, CEE_PREFIX1);
1618 mono_mb_emit_byte (mb, CEE_CPBLK);
1620 int array_var, src_var, dst_var, index_var;
1621 guint32 label2, label3;
1623 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1624 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1625 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1628 mono_mb_emit_ldloc (mb, 0);
1629 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1630 mono_mb_emit_stloc (mb, array_var);
1632 /* save the old src pointer */
1633 mono_mb_emit_ldloc (mb, 0);
1634 mono_mb_emit_stloc (mb, src_var);
1635 /* save the old dst pointer */
1636 mono_mb_emit_ldloc (mb, 1);
1637 mono_mb_emit_stloc (mb, dst_var);
1639 /* Emit marshalling loop */
1640 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1641 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1642 mono_mb_emit_stloc (mb, index_var);
1645 label2 = mono_mb_get_label (mb);
1646 mono_mb_emit_ldloc (mb, index_var);
1647 mono_mb_emit_ldloc (mb, array_var);
1648 mono_mb_emit_byte (mb, CEE_LDLEN);
1649 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1652 mono_mb_emit_ldloc (mb, array_var);
1653 mono_mb_emit_ldloc (mb, index_var);
1654 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1655 mono_mb_emit_stloc (mb, 0);
1657 /* dst is already set */
1659 /* Do the conversion */
1660 emit_struct_conv (mb, eklass, FALSE);
1663 mono_mb_emit_add_to_local (mb, index_var, 1);
1665 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1667 mono_mb_patch_branch (mb, label3);
1669 /* restore the old src pointer */
1670 mono_mb_emit_ldloc (mb, src_var);
1671 mono_mb_emit_stloc (mb, 0);
1672 /* restore the old dst pointer */
1673 mono_mb_emit_ldloc (mb, dst_var);
1674 mono_mb_emit_stloc (mb, 1);
1677 mono_mb_patch_branch (mb, pos);
1680 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1681 mono_mb_emit_ldloc (mb, 0);
1682 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1683 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1685 mono_mb_emit_ldloc (mb, 1);
1686 mono_mb_emit_ldloc (mb, 0);
1687 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1688 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1689 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1690 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1691 mono_mb_patch_short_branch (mb, pos);
1694 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1695 int src_var, dst_var;
1697 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1698 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1700 mono_mb_emit_ldloc (mb, 0);
1701 mono_mb_emit_byte (mb, CEE_LDIND_I);
1702 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1704 /* save the old src pointer */
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_stloc (mb, src_var);
1707 /* save the old dst pointer */
1708 mono_mb_emit_ldloc (mb, 1);
1709 mono_mb_emit_stloc (mb, dst_var);
1711 /* src = pointer to object data */
1712 mono_mb_emit_ldloc (mb, 0);
1713 mono_mb_emit_byte (mb, CEE_LDIND_I);
1714 mono_mb_emit_icon (mb, sizeof (MonoObject));
1715 mono_mb_emit_byte (mb, CEE_ADD);
1716 mono_mb_emit_stloc (mb, 0);
1718 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1720 /* restore the old src pointer */
1721 mono_mb_emit_ldloc (mb, src_var);
1722 mono_mb_emit_stloc (mb, 0);
1723 /* restore the old dst pointer */
1724 mono_mb_emit_ldloc (mb, dst_var);
1725 mono_mb_emit_stloc (mb, 1);
1727 mono_mb_patch_branch (mb, pos);
1732 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1733 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1734 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1735 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1737 #endif /* DISABLE_COM */
1739 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1740 int dar_release_slot, pos;
1742 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1745 * The following is ifdefed-out, because I have no way of doing the
1746 * DangerousRelease when destroying the structure
1749 /* set release = false */
1750 mono_mb_emit_icon (mb, 0);
1751 mono_mb_emit_stloc (mb, dar_release_slot);
1752 if (!sh_dangerous_add_ref)
1753 init_safe_handle ();
1755 /* safehandle.DangerousAddRef (ref release) */
1756 mono_mb_emit_ldloc (mb, 0); /* the source */
1757 mono_mb_emit_byte (mb, CEE_LDIND_I);
1758 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1759 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1761 mono_mb_emit_ldloc (mb, 0);
1762 mono_mb_emit_byte (mb, CEE_LDIND_I);
1763 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1764 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1765 mono_mb_patch_branch (mb, pos);
1767 /* Pull the handle field from SafeHandle */
1768 mono_mb_emit_ldloc (mb, 1);
1769 mono_mb_emit_ldloc (mb, 0);
1770 mono_mb_emit_byte (mb, CEE_LDIND_I);
1771 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1772 mono_mb_emit_byte (mb, CEE_LDIND_I);
1773 mono_mb_emit_byte (mb, CEE_STIND_I);
1777 case MONO_MARSHAL_CONV_HANDLEREF: {
1778 mono_mb_emit_ldloc (mb, 1);
1779 mono_mb_emit_ldloc (mb, 0);
1780 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1781 mono_mb_emit_byte (mb, CEE_ADD);
1782 mono_mb_emit_byte (mb, CEE_LDIND_I);
1783 mono_mb_emit_byte (mb, CEE_STIND_I);
1788 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1789 MonoException *exc = mono_get_exception_not_implemented (msg);
1790 g_warning ("%s", msg);
1792 mono_raise_exception (exc);
1798 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1799 MonoMarshalNative string_encoding)
1801 MonoMarshalType *info;
1805 emit_struct_conv(mb, klass->parent, to_object);
1807 info = mono_marshal_load_type_info (klass);
1809 if (info->native_size == 0)
1812 if (klass->blittable) {
1813 int msize = mono_class_value_size (klass, NULL);
1814 g_assert (msize == info->native_size);
1815 mono_mb_emit_ldloc (mb, 1);
1816 mono_mb_emit_ldloc (mb, 0);
1817 mono_mb_emit_icon (mb, msize);
1818 mono_mb_emit_byte (mb, CEE_PREFIX1);
1819 mono_mb_emit_byte (mb, CEE_CPBLK);
1821 mono_mb_emit_add_to_local (mb, 0, msize);
1822 mono_mb_emit_add_to_local (mb, 1, msize);
1826 if (klass != mono_defaults.safehandle_class) {
1827 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1828 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1829 mono_type_full_name (&klass->byval_arg));
1830 mono_mb_emit_exception_marshal_directive (mb, msg);
1835 for (i = 0; i < info->num_fields; i++) {
1836 MonoMarshalNative ntype;
1837 MonoMarshalConv conv;
1838 MonoType *ftype = info->fields [i].field->type;
1841 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1843 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1846 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1849 msize = klass->instance_size - info->fields [i].field->offset;
1850 usize = info->native_size - info->fields [i].offset;
1852 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1853 usize = info->fields [i + 1].offset - info->fields [i].offset;
1856 if (klass != mono_defaults.safehandle_class){
1858 * FIXME: Should really check for usize==0 and msize>0, but we apply
1859 * the layout to the managed structure as well.
1862 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1863 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1864 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1865 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1866 "reference field at the same offset as another field.",
1867 mono_type_full_name (&klass->byval_arg));
1872 case MONO_MARSHAL_CONV_NONE: {
1875 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1876 ftype->type == MONO_TYPE_U) {
1877 mono_mb_emit_ldloc (mb, 1);
1878 mono_mb_emit_ldloc (mb, 0);
1879 mono_mb_emit_byte (mb, CEE_LDIND_I);
1880 mono_mb_emit_byte (mb, CEE_STIND_I);
1891 case MONO_TYPE_BOOLEAN:
1894 case MONO_TYPE_CHAR:
1900 mono_mb_emit_ldloc (mb, 1);
1901 mono_mb_emit_ldloc (mb, 0);
1902 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1904 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1905 mono_mb_emit_byte (mb, CEE_STIND_I2);
1907 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1908 mono_mb_emit_byte (mb, CEE_STIND_I1);
1911 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1912 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1915 case MONO_TYPE_VALUETYPE: {
1916 int src_var, dst_var;
1918 if (ftype->data.klass->enumtype) {
1919 ftype = mono_class_enum_basetype (ftype->data.klass);
1923 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1924 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1926 /* save the old src pointer */
1927 mono_mb_emit_ldloc (mb, 0);
1928 mono_mb_emit_stloc (mb, src_var);
1929 /* save the old dst pointer */
1930 mono_mb_emit_ldloc (mb, 1);
1931 mono_mb_emit_stloc (mb, dst_var);
1933 emit_struct_conv (mb, ftype->data.klass, to_object);
1935 /* restore the old src pointer */
1936 mono_mb_emit_ldloc (mb, src_var);
1937 mono_mb_emit_stloc (mb, 0);
1938 /* restore the old dst pointer */
1939 mono_mb_emit_ldloc (mb, dst_var);
1940 mono_mb_emit_stloc (mb, 1);
1943 case MONO_TYPE_OBJECT: {
1944 mono_init_com_types ();
1946 static MonoMethod *variant_clear = NULL;
1947 static MonoMethod *get_object_for_native_variant = NULL;
1950 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1951 if (!get_object_for_native_variant)
1952 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1953 mono_mb_emit_ldloc (mb, 1);
1954 mono_mb_emit_ldloc (mb, 0);
1955 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1956 mono_mb_emit_byte (mb, CEE_STIND_REF);
1958 mono_mb_emit_ldloc (mb, 0);
1959 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1962 static MonoMethod *get_native_variant_for_object = NULL;
1964 if (!get_native_variant_for_object)
1965 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1967 mono_mb_emit_ldloc (mb, 0);
1968 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1969 mono_mb_emit_ldloc (mb, 1);
1970 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1976 g_warning ("marshaling type %02x not implemented", ftype->type);
1977 g_assert_not_reached ();
1982 int src_var, dst_var;
1984 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1985 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1987 /* save the old src pointer */
1988 mono_mb_emit_ldloc (mb, 0);
1989 mono_mb_emit_stloc (mb, src_var);
1990 /* save the old dst pointer */
1991 mono_mb_emit_ldloc (mb, 1);
1992 mono_mb_emit_stloc (mb, dst_var);
1995 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1997 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1999 /* restore the old src pointer */
2000 mono_mb_emit_ldloc (mb, src_var);
2001 mono_mb_emit_stloc (mb, 0);
2002 /* restore the old dst pointer */
2003 mono_mb_emit_ldloc (mb, dst_var);
2004 mono_mb_emit_stloc (mb, 1);
2009 mono_mb_emit_add_to_local (mb, 0, usize);
2010 mono_mb_emit_add_to_local (mb, 1, msize);
2012 mono_mb_emit_add_to_local (mb, 0, msize);
2013 mono_mb_emit_add_to_local (mb, 1, usize);
2019 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2021 emit_struct_conv_full (mb, klass, to_object, -1);
2025 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2027 /* Call DestroyStructure */
2028 /* FIXME: Only do this if needed */
2029 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2030 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2031 mono_mb_emit_ldloc (mb, struct_var);
2032 mono_mb_emit_icall (mb, mono_struct_delete_old);
2036 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2040 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2041 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2042 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2044 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2045 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2047 mono_mb_emit_icall (mb, checkpoint_func);
2049 mono_mb_patch_branch (mb, pos_noabort);
2053 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2055 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2058 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2062 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2064 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2068 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2070 emit_thread_interrupt_checkpoint (mb);
2073 static MonoAsyncResult *
2074 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2076 MonoMethodMessage *msg;
2077 MonoDelegate *async_callback;
2078 MonoMulticastDelegate *mcast_delegate;
2082 MonoMethod *method = NULL, *method2 = NULL;
2084 g_assert (delegate);
2085 mcast_delegate = (MonoMulticastDelegate *) delegate;
2086 if (mcast_delegate->prev != NULL)
2087 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2089 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2091 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2092 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2094 /* If the target is a proxy, make a direct call. Is proxy's work
2095 // to make the call asynchronous.
2097 MonoAsyncResult *ares;
2099 MonoArray *out_args;
2100 method = delegate->method;
2102 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2103 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2104 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2105 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2106 MONO_OBJECT_SETREF (msg, async_result, ares);
2107 msg->call_type = CallType_BeginInvoke;
2110 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2112 mono_raise_exception ((MonoException *) exc);
2117 klass = delegate->object.vtable->klass;
2119 method = mono_get_delegate_invoke (klass);
2120 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2123 g_assert (method != NULL);
2125 im = mono_get_delegate_invoke (method->klass);
2126 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2128 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2132 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2134 int i, params_var, tmp_var;
2136 /* allocate local (pointer) *params[] */
2137 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2138 /* allocate local (pointer) tmp */
2139 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2141 /* alloate space on stack to store an array of pointers to the arguments */
2142 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2143 mono_mb_emit_byte (mb, CEE_PREFIX1);
2144 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2145 mono_mb_emit_stloc (mb, params_var);
2148 mono_mb_emit_ldloc (mb, params_var);
2149 mono_mb_emit_stloc (mb, tmp_var);
2151 if (save_this && sig->hasthis) {
2152 mono_mb_emit_ldloc (mb, tmp_var);
2153 mono_mb_emit_ldarg_addr (mb, 0);
2154 mono_mb_emit_byte (mb, CEE_STIND_I);
2155 /* tmp = tmp + sizeof (gpointer) */
2156 if (sig->param_count)
2157 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2161 for (i = 0; i < sig->param_count; i++) {
2162 mono_mb_emit_ldloc (mb, tmp_var);
2163 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2164 mono_mb_emit_byte (mb, CEE_STIND_I);
2165 /* tmp = tmp + sizeof (gpointer) */
2166 if (i < (sig->param_count - 1))
2167 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2174 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2178 GString *res = g_string_new ("");
2181 g_string_append (res, prefix);
2182 g_string_append_c (res, '_');
2185 mono_type_get_desc (res, sig->ret, FALSE);
2188 g_string_append (res, "__this__");
2190 for (i = 0; i < sig->param_count; ++i) {
2191 g_string_append_c (res, '_');
2192 mono_type_get_desc (res, sig->params [i], FALSE);
2195 g_string_free (res, FALSE);
2200 * mono_marshal_get_string_encoding:
2202 * Return the string encoding which should be used for a given parameter.
2204 static MonoMarshalNative
2205 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2207 /* First try the parameter marshal info */
2209 if (spec->native == MONO_NATIVE_LPARRAY) {
2210 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2211 return spec->data.array_data.elem_type;
2214 return spec->native;
2218 return MONO_NATIVE_LPSTR;
2220 /* Then try the method level marshal info */
2221 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2222 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2223 return MONO_NATIVE_LPSTR;
2224 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2225 return MONO_NATIVE_LPWSTR;
2226 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2228 return MONO_NATIVE_LPWSTR;
2230 return MONO_NATIVE_LPSTR;
2233 return MONO_NATIVE_LPSTR;
2237 static MonoMarshalConv
2238 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2240 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2243 case MONO_NATIVE_LPWSTR:
2244 return MONO_MARSHAL_CONV_STR_LPWSTR;
2245 case MONO_NATIVE_LPSTR:
2246 case MONO_NATIVE_VBBYREFSTR:
2247 return MONO_MARSHAL_CONV_STR_LPSTR;
2248 case MONO_NATIVE_LPTSTR:
2249 return MONO_MARSHAL_CONV_STR_LPTSTR;
2250 case MONO_NATIVE_BSTR:
2251 return MONO_MARSHAL_CONV_STR_BSTR;
2257 static MonoMarshalConv
2258 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2260 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2263 case MONO_NATIVE_LPWSTR:
2264 return MONO_MARSHAL_CONV_SB_LPWSTR;
2266 case MONO_NATIVE_LPSTR:
2267 return MONO_MARSHAL_CONV_SB_LPSTR;
2269 case MONO_NATIVE_LPTSTR:
2270 return MONO_MARSHAL_CONV_SB_LPTSTR;
2277 static MonoMarshalConv
2278 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2280 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2285 case MONO_NATIVE_LPWSTR:
2287 return MONO_MARSHAL_CONV_LPWSTR_STR;
2288 case MONO_NATIVE_LPSTR:
2289 case MONO_NATIVE_VBBYREFSTR:
2290 return MONO_MARSHAL_CONV_LPSTR_STR;
2291 case MONO_NATIVE_LPTSTR:
2292 return MONO_MARSHAL_CONV_LPTSTR_STR;
2293 case MONO_NATIVE_BSTR:
2294 return MONO_MARSHAL_CONV_BSTR_STR;
2300 static MonoMarshalConv
2301 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2303 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2308 case MONO_NATIVE_LPWSTR:
2310 * mono_string_builder_to_utf16 does not allocate a
2311 * new buffer, so no need to free it.
2314 return MONO_MARSHAL_CONV_LPWSTR_SB;
2315 case MONO_NATIVE_LPSTR:
2316 return MONO_MARSHAL_CONV_LPSTR_SB;
2318 case MONO_NATIVE_LPTSTR:
2319 return MONO_MARSHAL_CONV_LPTSTR_SB;
2327 * Return whenever a field of a native structure or an array member needs to
2331 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2333 MonoMarshalNative encoding;
2334 MonoMarshalConv conv;
2337 case MONO_TYPE_VALUETYPE:
2338 /* FIXME: Optimize this */
2340 case MONO_TYPE_OBJECT:
2341 case MONO_TYPE_CLASS:
2342 if (t->data.klass == mono_defaults.stringbuilder_class) {
2344 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2348 case MONO_TYPE_STRING:
2349 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2350 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2357 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2360 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2363 mono_marshal_lock ();
2366 g_hash_table_new (hash_func, equal_func);
2367 mono_memory_barrier ();
2370 mono_marshal_unlock ();
2376 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2379 mono_marshal_lock ();
2382 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2383 mono_memory_barrier ();
2386 mono_marshal_unlock ();
2392 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2394 return get_cache (var, hash_func, equal_func);
2398 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2402 mono_marshal_lock ();
2403 res = g_hash_table_lookup (cache, key);
2404 mono_marshal_unlock ();
2408 /* Create the method from the builder and place it in the cache */
2410 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2411 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2416 mono_marshal_lock ();
2417 res = g_hash_table_lookup (cache, key);
2418 mono_marshal_unlock ();
2421 newm = mono_mb_create_method (mb, sig, max_stack);
2422 mono_marshal_lock ();
2423 res = g_hash_table_lookup (cache, key);
2426 g_hash_table_insert (cache, key, res);
2427 mono_marshal_set_wrapper_info (res, key);
2428 mono_marshal_unlock ();
2430 mono_marshal_unlock ();
2431 mono_free_method (newm);
2439 static inline MonoMethod*
2440 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2442 MonoMethod *res = NULL;
2443 MonoRemotingMethods *wrps;
2445 mono_marshal_lock ();
2446 if (method->klass->image->remoting_invoke_cache)
2447 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2452 switch (wrapper_type) {
2453 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2454 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2455 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2456 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2460 /* it is important to do the unlock after the load from wrps, since in
2461 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2462 * to take the loader lock and some other thread may set the fields.
2464 mono_marshal_unlock ();
2468 /* Create the method from the builder and place it in the cache */
2469 static inline MonoMethod*
2470 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2471 MonoMethodSignature *sig, int max_stack)
2473 MonoMethod **res = NULL;
2474 MonoRemotingMethods *wrps;
2475 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2477 mono_marshal_lock ();
2478 wrps = g_hash_table_lookup (cache, key);
2480 wrps = g_new0 (MonoRemotingMethods, 1);
2481 g_hash_table_insert (cache, key, wrps);
2484 switch (mb->method->wrapper_type) {
2485 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2486 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2487 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2488 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2489 default: g_assert_not_reached (); break;
2491 mono_marshal_unlock ();
2495 newm = mono_mb_create_method (mb, sig, max_stack);
2497 mono_marshal_lock ();
2500 mono_marshal_set_wrapper_info (*res, key);
2501 mono_marshal_unlock ();
2503 mono_marshal_unlock ();
2504 mono_free_method (newm);
2512 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2515 int wrapper_type = wrapper->wrapper_type;
2518 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2521 switch (wrapper_type) {
2522 case MONO_WRAPPER_REMOTING_INVOKE:
2523 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2524 case MONO_WRAPPER_XDOMAIN_INVOKE:
2525 case MONO_WRAPPER_SYNCHRONIZED:
2526 res = mono_marshal_get_wrapper_info (wrapper);
2530 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2531 info = mono_marshal_get_wrapper_info (wrapper);
2532 if (info && info->subtype == WRAPPER_SUBTYPE_NONE)
2533 return info->d.managed_to_native.method;
2536 case MONO_WRAPPER_RUNTIME_INVOKE:
2537 info = mono_marshal_get_wrapper_info (wrapper);
2538 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2539 return info->d.runtime_invoke.method;
2548 * mono_marshal_get_wrapper_info:
2550 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2551 * returned depends on the wrapper type. It is usually a method, a class, or a
2552 * WrapperInfo structure.
2555 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2557 g_assert (wrapper->wrapper_type);
2559 return mono_method_get_wrapper_data (wrapper, 1);
2563 * mono_marshal_set_wrapper_info:
2565 * Store an arbitrary pointer inside the wrapper which is retrievable by
2566 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2567 * wrapper (method->wrapper_type).
2570 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2574 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2577 datav = ((MonoMethodWrapper *)method)->method_data;
2582 mono_wrapper_info_create (MonoMethod *wrapper, WrapperSubtype subtype)
2586 info = mono_image_alloc0 (wrapper->klass->image, sizeof (WrapperInfo));
2587 info->subtype = subtype;
2592 * get_wrapper_target_class:
2594 * Return the class where a wrapper method should be placed.
2597 get_wrapper_target_class (MonoImage *image)
2603 * - can't put all wrappers into an mscorlib class, because they reference
2604 * metadata (signature) so they should be put into the same image as the
2605 * method they wrap, so they are unloaded together.
2606 * - putting them into a class with a type initalizer could cause the
2607 * initializer to be executed which can be a problem if the wrappers are
2609 * - putting them into an inflated class can cause problems if the the
2610 * class is deleted because it references an image which is unloaded.
2611 * To avoid these problems, we put the wrappers into the <Module> class of
2615 klass = ((MonoDynamicImage*)image)->wrappers_type;
2617 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2624 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2626 MonoMethodSignature *sig;
2627 MonoMethodBuilder *mb;
2633 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2634 !strcmp (method->name, "BeginInvoke"));
2636 sig = mono_signature_no_pinvoke (method);
2638 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2639 (GHashFunc)mono_signature_hash,
2640 (GCompareFunc)mono_metadata_signature_equal);
2641 if ((res = mono_marshal_find_in_cache (cache, sig)))
2644 g_assert (sig->hasthis);
2646 name = mono_signature_to_name (sig, "begin_invoke");
2647 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2650 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2652 mono_mb_emit_ldarg (mb, 0);
2653 mono_mb_emit_ldloc (mb, params_var);
2654 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2655 mono_mb_emit_byte (mb, CEE_RET);
2657 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2663 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2665 MonoDomain *domain = mono_domain_get ();
2666 MonoAsyncResult *ares;
2667 MonoMethod *method = NULL;
2668 MonoMethodSignature *sig;
2669 MonoMethodMessage *msg;
2670 MonoObject *res, *exc;
2671 MonoArray *out_args;
2674 g_assert (delegate);
2676 if (!delegate->method_info) {
2677 g_assert (delegate->method);
2678 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2681 if (!delegate->method_info || !delegate->method_info->method)
2682 g_assert_not_reached ();
2684 klass = delegate->object.vtable->klass;
2686 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2687 g_assert (method != NULL);
2689 sig = mono_signature_no_pinvoke (method);
2691 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2693 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2695 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."));
2699 if (ares->async_delegate != (MonoObject*)delegate) {
2700 mono_raise_exception (mono_get_exception_invalid_operation (
2701 "The IAsyncResult object provided does not match this delegate."));
2705 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2706 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2707 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2708 mono_message_init (domain, msg, delegate->method_info, NULL);
2709 msg->call_type = CallType_EndInvoke;
2710 MONO_OBJECT_SETREF (msg, async_result, ares);
2711 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2713 res = mono_thread_pool_finish (ares, &out_args, &exc);
2717 if (((MonoException*)exc)->stack_trace) {
2718 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2720 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2722 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2725 mono_raise_exception ((MonoException*)exc);
2728 mono_method_return_message_restore (method, params, out_args);
2733 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2735 MonoType *t = mono_type_get_underlying_type (return_type);
2737 if (return_type->byref)
2738 return_type = &mono_defaults.int_class->byval_arg;
2741 case MONO_TYPE_VOID:
2742 g_assert_not_reached ();
2745 case MONO_TYPE_STRING:
2746 case MONO_TYPE_CLASS:
2747 case MONO_TYPE_OBJECT:
2748 case MONO_TYPE_ARRAY:
2749 case MONO_TYPE_SZARRAY:
2753 case MONO_TYPE_BOOLEAN:
2756 case MONO_TYPE_CHAR:
2766 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2767 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2769 case MONO_TYPE_GENERICINST:
2770 if (!mono_type_generic_inst_is_valuetype (t))
2773 case MONO_TYPE_VALUETYPE: {
2774 MonoClass *klass = mono_class_from_mono_type (return_type);
2775 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2776 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2780 g_warning ("type 0x%x not handled", return_type->type);
2781 g_assert_not_reached ();
2784 mono_mb_emit_byte (mb, CEE_RET);
2788 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2790 MonoMethodSignature *sig;
2791 MonoMethodBuilder *mb;
2797 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2798 !strcmp (method->name, "EndInvoke"));
2800 sig = mono_signature_no_pinvoke (method);
2802 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2803 (GHashFunc)mono_signature_hash,
2804 (GCompareFunc)mono_metadata_signature_equal);
2805 if ((res = mono_marshal_find_in_cache (cache, sig)))
2808 g_assert (sig->hasthis);
2810 name = mono_signature_to_name (sig, "end_invoke");
2811 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2814 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2816 mono_mb_emit_ldarg (mb, 0);
2817 mono_mb_emit_ldloc (mb, params_var);
2818 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2820 if (sig->ret->type == MONO_TYPE_VOID) {
2821 mono_mb_emit_byte (mb, CEE_POP);
2822 mono_mb_emit_byte (mb, CEE_RET);
2824 mono_mb_emit_restore_result (mb, sig->ret);
2826 res = mono_mb_create_and_cache (cache, sig,
2827 mb, sig, sig->param_count + 16);
2834 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2836 MonoMethodMessage *msg;
2837 MonoTransparentProxy *this;
2838 MonoObject *res, *exc;
2839 MonoArray *out_args;
2841 this = *((MonoTransparentProxy **)params [0]);
2844 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2846 /* skip the this pointer */
2849 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2852 MonoMethodSignature *sig = mono_method_signature (method);
2853 int count = sig->param_count;
2854 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2856 for (i=0; i<count; i++) {
2857 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2858 if (class->valuetype) {
2859 if (sig->params [i]->byref) {
2860 mparams[i] = *((gpointer *)params [i]);
2862 /* runtime_invoke expects a boxed instance */
2863 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2864 mparams[i] = mono_nullable_box (params [i], class);
2866 mparams[i] = params [i];
2869 mparams[i] = *((gpointer**)params [i]);
2873 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2876 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2878 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2881 mono_raise_exception ((MonoException *)exc);
2883 mono_method_return_message_restore (method, params, out_args);
2889 mono_marshal_get_remoting_invoke (MonoMethod *method)
2891 MonoMethodSignature *sig;
2892 MonoMethodBuilder *mb;
2898 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2901 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2902 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2903 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2904 g_assert (vtable); /*FIXME do proper error handling*/
2906 if (!vtable->remote) {
2908 return mono_cominterop_get_invoke (method);
2910 g_assert_not_reached ();
2915 sig = mono_signature_no_pinvoke (method);
2917 /* we cant remote methods without this pointer */
2921 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2924 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2925 mb->method->save_lmf = 1;
2927 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2929 mono_mb_emit_ptr (mb, method);
2930 mono_mb_emit_ldloc (mb, params_var);
2931 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2932 emit_thread_interrupt_checkpoint (mb);
2934 if (sig->ret->type == MONO_TYPE_VOID) {
2935 mono_mb_emit_byte (mb, CEE_POP);
2936 mono_mb_emit_byte (mb, CEE_RET);
2938 mono_mb_emit_restore_result (mb, sig->ret);
2941 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2947 /* mono_get_xdomain_marshal_type()
2948 * Returns the kind of marshalling that a type needs for cross domain calls.
2950 static MonoXDomainMarshalType
2951 mono_get_xdomain_marshal_type (MonoType *t)
2954 case MONO_TYPE_VOID:
2955 g_assert_not_reached ();
2959 case MONO_TYPE_BOOLEAN:
2962 case MONO_TYPE_CHAR:
2969 return MONO_MARSHAL_NONE;
2970 case MONO_TYPE_STRING:
2971 return MONO_MARSHAL_COPY;
2972 case MONO_TYPE_ARRAY:
2973 case MONO_TYPE_SZARRAY: {
2974 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2975 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2976 return MONO_MARSHAL_COPY;
2981 return MONO_MARSHAL_SERIALIZE;
2985 /* mono_marshal_xdomain_copy_value
2986 * Makes a copy of "val" suitable for the current domain.
2989 mono_marshal_xdomain_copy_value (MonoObject *val)
2992 if (val == NULL) return NULL;
2994 domain = mono_domain_get ();
2996 switch (mono_object_class (val)->byval_arg.type) {
2997 case MONO_TYPE_VOID:
2998 g_assert_not_reached ();
3002 case MONO_TYPE_BOOLEAN:
3005 case MONO_TYPE_CHAR:
3011 case MONO_TYPE_R8: {
3012 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3014 case MONO_TYPE_STRING: {
3015 MonoString *str = (MonoString *) val;
3016 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3018 case MONO_TYPE_ARRAY:
3019 case MONO_TYPE_SZARRAY: {
3021 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3022 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3023 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3024 if (mt == MONO_MARSHAL_COPY) {
3025 int i, len = mono_array_length (acopy);
3026 for (i = 0; i < len; i++) {
3027 MonoObject *item = mono_array_get (acopy, gpointer, i);
3028 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3031 return (MonoObject *) acopy;
3035 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3036 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3037 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3038 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3039 newsb->length = oldsb->length;
3040 newsb->max_capacity = (gint32)0x7fffffff;
3041 return (MonoObject *) newsb;
3046 /* mono_marshal_xdomain_copy_out_value()
3047 * Copies the contents of the src instance into the dst instance. src and dst
3048 * must have the same type, and if they are arrays, the same size.
3051 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3053 if (src == NULL || dst == NULL) return;
3055 g_assert (mono_object_class (src) == mono_object_class (dst));
3057 switch (mono_object_class (src)->byval_arg.type) {
3058 case MONO_TYPE_ARRAY:
3059 case MONO_TYPE_SZARRAY: {
3060 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3061 if (mt == MONO_MARSHAL_SERIALIZE) return;
3062 if (mt == MONO_MARSHAL_COPY) {
3063 int i, len = mono_array_length ((MonoArray *)dst);
3064 for (i = 0; i < len; i++) {
3065 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3066 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3069 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3075 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3076 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3077 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3079 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)));
3080 dst_sb->cached_str = NULL;
3081 dst_sb->length = src_sb->length;
3086 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3088 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3089 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3093 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3095 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3098 /* mono_marshal_supports_fast_xdomain()
3099 * Returns TRUE if the method can use the fast xdomain wrapper.
3102 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3104 return !method->klass->contextbound &&
3105 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3109 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3111 MonoDomain *current_domain = mono_domain_get ();
3112 MonoDomain *domain = mono_domain_get_by_id (id);
3114 if (!domain || !mono_domain_set (domain, FALSE))
3115 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3118 mono_thread_push_appdomain_ref (domain);
3120 mono_thread_pop_appdomain_ref ();
3122 return current_domain->domain_id;
3126 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3128 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3131 /* mono_marshal_emit_load_domain_method ()
3132 * Loads into the stack a pointer to the code of the provided method for
3133 * the current domain.
3136 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3138 /* We need a pointer to the method for the running domain (not the domain
3139 * that compiles the method).
3141 mono_mb_emit_ptr (mb, method);
3142 mono_mb_emit_icall (mb, mono_compile_method);
3145 /* mono_marshal_check_domain_image ()
3146 * Returns TRUE if the image is loaded in the specified
3147 * application domain.
3150 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3155 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3159 mono_domain_assemblies_lock (domain);
3160 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3162 if (ass->image == image)
3165 mono_domain_assemblies_unlock (domain);
3170 /* mono_marshal_get_xappdomain_dispatch ()
3171 * Generates a method that dispatches a method call from another domain into
3172 * the current domain.
3175 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3177 MonoMethodSignature *sig, *csig;
3178 MonoMethodBuilder *mb;
3180 int i, j, param_index, copy_locals_base;
3181 MonoClass *ret_class = NULL;
3182 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3183 MonoExceptionClause *main_clause;
3185 gboolean copy_return;
3187 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3190 sig = mono_method_signature (method);
3191 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3194 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3195 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3196 csig->params [j++] = &byte_array_class->this_arg;
3197 csig->params [j++] = &byte_array_class->this_arg;
3198 for (i = 0; i < sig->param_count; i++) {
3199 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3200 csig->params [j++] = sig->params [i];
3203 csig->ret = sig->ret;
3205 csig->ret = &mono_defaults.void_class->byval_arg;
3207 csig->hasthis = FALSE;
3209 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3210 mb->method->save_lmf = 1;
3214 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3215 if (complex_count > 0)
3216 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3217 if (sig->ret->type != MONO_TYPE_VOID) {
3218 loc_return = mono_mb_add_local (mb, sig->ret);
3219 ret_class = mono_class_from_mono_type (sig->ret);
3224 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3225 main_clause->try_offset = mono_mb_get_label (mb);
3227 /* Clean the call context */
3229 mono_mb_emit_byte (mb, CEE_LDNULL);
3230 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3231 mono_mb_emit_byte (mb, CEE_POP);
3233 /* Deserialize call data */
3235 mono_mb_emit_ldarg (mb, 1);
3236 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3237 mono_mb_emit_byte (mb, CEE_DUP);
3238 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3240 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3241 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3243 if (complex_count > 0)
3244 mono_mb_emit_stloc (mb, loc_array);
3246 mono_mb_emit_byte (mb, CEE_POP);
3248 mono_mb_patch_short_branch (mb, pos);
3250 /* Get the target object */
3252 mono_mb_emit_ldarg (mb, 0);
3253 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3255 /* Load the arguments */
3257 copy_locals_base = mb->locals;
3258 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3260 for (i = 0; i < sig->param_count; i++) {
3261 MonoType *pt = sig->params [i];
3262 MonoClass *pclass = mono_class_from_mono_type (pt);
3263 switch (marshal_types [i]) {
3264 case MONO_MARSHAL_SERIALIZE: {
3265 /* take the value from the serialized array */
3266 mono_mb_emit_ldloc (mb, loc_array);
3267 mono_mb_emit_icon (mb, j++);
3269 if (pclass->valuetype) {
3270 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3271 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3273 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3276 if (pclass->valuetype) {
3277 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3278 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3279 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3281 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3282 if (pclass != mono_defaults.object_class) {
3283 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3289 case MONO_MARSHAL_COPY_OUT: {
3290 /* Keep a local copy of the value since we need to copy it back after the call */
3291 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3292 mono_mb_emit_ldarg (mb, param_index++);
3293 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3294 mono_mb_emit_byte (mb, CEE_DUP);
3295 mono_mb_emit_stloc (mb, copy_local);
3298 case MONO_MARSHAL_COPY: {
3299 mono_mb_emit_ldarg (mb, param_index);
3301 mono_mb_emit_byte (mb, CEE_DUP);
3302 mono_mb_emit_byte (mb, CEE_DUP);
3303 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3304 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3305 mono_mb_emit_byte (mb, CEE_STIND_REF);
3307 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3312 case MONO_MARSHAL_NONE:
3313 mono_mb_emit_ldarg (mb, param_index++);
3318 /* Make the call to the real object */
3320 emit_thread_force_interrupt_checkpoint (mb);
3322 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3324 if (sig->ret->type != MONO_TYPE_VOID)
3325 mono_mb_emit_stloc (mb, loc_return);
3327 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3331 for (i = 0; i < sig->param_count; i++) {
3332 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3333 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3334 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3335 mono_mb_emit_ldarg (mb, param_index);
3336 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3341 /* Serialize the return values */
3343 if (complex_out_count > 0) {
3344 /* Reset parameters in the array that don't need to be serialized back */
3346 for (i = 0; i < sig->param_count; i++) {
3347 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3348 if (!sig->params [i]->byref) {
3349 mono_mb_emit_ldloc (mb, loc_array);
3350 mono_mb_emit_icon (mb, j);
3351 mono_mb_emit_byte (mb, CEE_LDNULL);
3352 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3357 /* Add the return value to the array */
3359 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3360 mono_mb_emit_ldloc (mb, loc_array);
3361 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3362 mono_mb_emit_ldloc (mb, loc_return);
3364 g_assert (ret_class); /*FIXME properly fail here*/
3365 if (ret_class->valuetype) {
3366 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3368 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3373 mono_mb_emit_ldarg (mb, 1);
3374 mono_mb_emit_ldloc (mb, loc_array);
3375 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3376 mono_mb_emit_byte (mb, CEE_STIND_REF);
3377 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3378 mono_mb_emit_ldarg (mb, 1);
3379 mono_mb_emit_ldloc (mb, loc_return);
3380 if (ret_class->valuetype) {
3381 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3383 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3384 mono_mb_emit_byte (mb, CEE_STIND_REF);
3386 mono_mb_emit_ldarg (mb, 1);
3387 mono_mb_emit_byte (mb, CEE_LDNULL);
3388 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3389 mono_mb_emit_byte (mb, CEE_STIND_REF);
3392 mono_mb_emit_ldarg (mb, 2);
3393 mono_mb_emit_byte (mb, CEE_LDNULL);
3394 mono_mb_emit_byte (mb, CEE_STIND_REF);
3395 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3397 /* Main exception catch */
3398 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3399 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3400 main_clause->data.catch_class = mono_defaults.object_class;
3403 main_clause->handler_offset = mono_mb_get_label (mb);
3404 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3405 mono_mb_emit_stloc (mb, loc_serialized_exc);
3406 mono_mb_emit_ldarg (mb, 2);
3407 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3408 mono_mb_emit_byte (mb, CEE_STIND_REF);
3409 mono_mb_emit_branch (mb, CEE_LEAVE);
3410 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3413 mono_mb_patch_branch (mb, pos_leave);
3416 mono_mb_emit_ldloc (mb, loc_return);
3418 mono_mb_emit_byte (mb, CEE_RET);
3420 mono_mb_set_clauses (mb, 1, main_clause);
3422 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3428 /* mono_marshal_get_xappdomain_invoke ()
3429 * Generates a fast remoting wrapper for cross app domain calls.
3432 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3434 MonoMethodSignature *sig;
3435 MonoMethodBuilder *mb;
3437 int i, j, complex_count, complex_out_count, copy_locals_base;
3439 MonoClass *ret_class = NULL;
3440 MonoMethod *xdomain_method;
3441 int ret_marshal_type = MONO_MARSHAL_NONE;
3442 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3443 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3444 int pos, pos_dispatch, pos_noex;
3445 gboolean copy_return = FALSE;
3449 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3452 /* we cant remote methods without this pointer */
3453 if (!mono_method_signature (method)->hasthis)
3456 if (!mono_marshal_supports_fast_xdomain (method))
3457 return mono_marshal_get_remoting_invoke (method);
3459 mono_remoting_marshal_init ();
3461 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3464 sig = mono_signature_no_pinvoke (method);
3466 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3467 mb->method->save_lmf = 1;
3469 /* Count the number of parameters that need to be serialized */
3471 marshal_types = alloca (sizeof (int) * sig->param_count);
3472 complex_count = complex_out_count = 0;
3473 for (i = 0; i < sig->param_count; i++) {
3474 MonoType *ptype = sig->params[i];
3475 int mt = mono_get_xdomain_marshal_type (ptype);
3477 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3478 * the copy will be made by reusing the original object instance
3480 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3481 mt = MONO_MARSHAL_COPY_OUT;
3482 else if (mt == MONO_MARSHAL_SERIALIZE) {
3484 if (ptype->byref) complex_out_count++;
3486 marshal_types [i] = mt;
3489 if (sig->ret->type != MONO_TYPE_VOID) {
3490 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3491 ret_class = mono_class_from_mono_type (sig->ret);
3492 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3497 if (complex_count > 0)
3498 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3499 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3500 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3502 loc_return = mono_mb_add_local (mb, sig->ret);
3503 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3504 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3505 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3506 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3508 /* Save thread domain data */
3510 mono_mb_emit_icall (mb, mono_context_get);
3511 mono_mb_emit_byte (mb, CEE_DUP);
3512 mono_mb_emit_stloc (mb, loc_context);
3514 /* If the thread is not running in the default context, it needs to go
3515 * through the whole remoting sink, since the context is going to change
3517 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3518 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3520 /* Another case in which the fast path can't be used: when the target domain
3521 * has a different image for the same assembly.
3524 /* Get the target domain id */
3526 mono_mb_emit_ldarg (mb, 0);
3527 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3528 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3529 mono_mb_emit_byte (mb, CEE_DUP);
3530 mono_mb_emit_stloc (mb, loc_real_proxy);
3532 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3533 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3534 mono_mb_emit_stloc (mb, loc_domainid);
3536 /* Check if the target domain has the same image for the required assembly */
3538 mono_mb_emit_ldloc (mb, loc_domainid);
3539 mono_mb_emit_ptr (mb, method->klass->image);
3540 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3541 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3543 /* Use the whole remoting sink to dispatch this message */
3545 mono_mb_patch_short_branch (mb, pos);
3547 mono_mb_emit_ldarg (mb, 0);
3548 for (i = 0; i < sig->param_count; i++)
3549 mono_mb_emit_ldarg (mb, i + 1);
3551 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3552 mono_mb_emit_byte (mb, CEE_RET);
3553 mono_mb_patch_short_branch (mb, pos_dispatch);
3555 /* Create the array that will hold the parameters to be serialized */
3557 if (complex_count > 0) {
3558 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 */
3559 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3562 for (i = 0; i < sig->param_count; i++) {
3564 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3565 pclass = mono_class_from_mono_type (sig->params[i]);
3566 mono_mb_emit_byte (mb, CEE_DUP);
3567 mono_mb_emit_icon (mb, j);
3568 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3569 if (sig->params[i]->byref) {
3570 if (pclass->valuetype)
3571 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3573 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3575 if (pclass->valuetype)
3576 mono_mb_emit_op (mb, CEE_BOX, pclass);
3577 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3580 mono_mb_emit_stloc (mb, loc_array);
3582 /* Serialize parameters */
3584 mono_mb_emit_ldloc (mb, loc_array);
3585 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3586 mono_mb_emit_stloc (mb, loc_serialized_data);
3588 mono_mb_emit_byte (mb, CEE_LDNULL);
3589 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3590 mono_mb_emit_stloc (mb, loc_serialized_data);
3595 mono_mb_emit_ldloc (mb, loc_domainid);
3596 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3597 mono_marshal_emit_switch_domain (mb);
3598 mono_mb_emit_stloc (mb, loc_old_domainid);
3600 /* Load the arguments */
3602 mono_mb_emit_ldloc (mb, loc_real_proxy);
3603 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3604 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3606 copy_locals_base = mb->locals;
3607 for (i = 0; i < sig->param_count; i++) {
3608 switch (marshal_types [i]) {
3609 case MONO_MARSHAL_SERIALIZE:
3611 case MONO_MARSHAL_COPY: {
3612 mono_mb_emit_ldarg (mb, i+1);
3613 if (sig->params [i]->byref) {
3614 /* make a local copy of the byref parameter. The real parameter
3615 * will be updated after the xdomain call
3617 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3618 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3619 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3620 mono_mb_emit_stloc (mb, copy_local);
3621 mono_mb_emit_ldloc_addr (mb, copy_local);
3625 case MONO_MARSHAL_COPY_OUT:
3626 case MONO_MARSHAL_NONE:
3627 mono_mb_emit_ldarg (mb, i+1);
3632 /* Make the call to the invoke wrapper in the target domain */
3634 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3635 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3636 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3639 mono_mb_emit_stloc (mb, loc_return);
3643 mono_mb_emit_ldloc (mb, loc_old_domainid);
3644 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3645 mono_marshal_emit_switch_domain (mb);
3646 mono_mb_emit_byte (mb, CEE_POP);
3648 /* Restore thread domain data */
3650 mono_mb_emit_ldloc (mb, loc_context);
3651 mono_mb_emit_icall (mb, mono_context_set);
3653 /* if (loc_serialized_exc != null) ... */
3655 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3656 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3658 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3659 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3660 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3661 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3662 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3663 mono_mb_emit_byte (mb, CEE_THROW);
3664 mono_mb_patch_short_branch (mb, pos_noex);
3666 /* copy back non-serialized output parameters */
3669 for (i = 0; i < sig->param_count; i++) {
3670 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3671 mono_mb_emit_ldarg (mb, i + 1);
3672 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3673 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3674 mono_mb_emit_byte (mb, CEE_STIND_REF);
3677 /* Deserialize out parameters */
3679 if (complex_out_count > 0) {
3680 mono_mb_emit_ldloc (mb, loc_serialized_data);
3681 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3682 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3683 mono_mb_emit_stloc (mb, loc_array);
3685 /* Copy back output parameters and return type */
3688 for (i = 0; i < sig->param_count; i++) {
3689 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3690 if (sig->params[i]->byref) {
3691 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3692 mono_mb_emit_ldarg (mb, i + 1);
3693 mono_mb_emit_ldloc (mb, loc_array);
3694 mono_mb_emit_icon (mb, j);
3695 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3696 if (pclass->valuetype) {
3697 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3698 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3699 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3701 if (pclass != mono_defaults.object_class)
3702 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3703 mono_mb_emit_byte (mb, CEE_STIND_REF);
3709 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3710 mono_mb_emit_ldloc (mb, loc_array);
3711 mono_mb_emit_icon (mb, complex_count);
3712 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3713 if (ret_class->valuetype) {
3714 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3715 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3718 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3719 mono_mb_emit_ldloc (mb, loc_serialized_data);
3720 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3721 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3722 if (ret_class->valuetype) {
3723 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3724 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3725 } else if (ret_class != mono_defaults.object_class) {
3726 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3729 mono_mb_emit_ldloc (mb, loc_serialized_data);
3730 mono_mb_emit_byte (mb, CEE_DUP);
3731 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3732 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3734 mono_mb_patch_short_branch (mb, pos);
3735 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3736 mono_mb_emit_byte (mb, CEE_POP);
3740 mono_mb_emit_ldloc (mb, loc_return);
3741 if (ret_marshal_type == MONO_MARSHAL_COPY)
3742 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3745 mono_mb_emit_byte (mb, CEE_RET);
3747 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3754 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3756 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3757 return mono_marshal_get_xappdomain_invoke (method);
3758 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3760 return mono_cominterop_get_invoke (method);
3762 g_assert_not_reached ();
3765 return mono_marshal_get_remoting_invoke (method);
3771 G_GNUC_UNUSED static gpointer
3772 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3774 if (rp->target_domain_id != -1)
3775 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3777 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3781 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3783 MonoMethodSignature *sig;
3784 MonoMethodBuilder *mb;
3785 MonoMethod *res, *native;
3786 int i, pos, pos_rem;
3790 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3793 /* we cant remote methods without this pointer */
3794 g_assert (mono_method_signature (method)->hasthis);
3796 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3799 sig = mono_signature_no_pinvoke (method);
3801 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3803 for (i = 0; i <= sig->param_count; i++)
3804 mono_mb_emit_ldarg (mb, i);
3806 mono_mb_emit_ldarg (mb, 0);
3807 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3809 if (mono_marshal_supports_fast_xdomain (method)) {
3810 mono_mb_emit_ldarg (mb, 0);
3811 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3813 /* wrapper for cross app domain calls */
3814 native = mono_marshal_get_xappdomain_invoke (method);
3815 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3816 mono_mb_emit_byte (mb, CEE_RET);
3818 mono_mb_patch_branch (mb, pos_rem);
3820 /* wrapper for normal remote calls */
3821 native = mono_marshal_get_remoting_invoke (method);
3822 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3823 mono_mb_emit_byte (mb, CEE_RET);
3826 mono_mb_patch_branch (mb, pos);
3827 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3828 mono_mb_emit_byte (mb, CEE_RET);
3830 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3838 MonoMethodSignature *sig;
3840 } SignatureMethodPair;
3843 signature_method_pair_hash (gconstpointer data)
3845 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3847 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3851 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3853 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3857 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3859 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3860 MonoMethod *method = (MonoMethod*)user_data;
3862 return pair->method == method;
3866 free_signature_method_pair (SignatureMethodPair *pair)
3872 * the returned method invokes all methods in a multicast delegate.
3875 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3877 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3879 MonoMethodBuilder *mb;
3880 MonoMethod *res, *newm;
3882 SignatureMethodPair key;
3883 SignatureMethodPair *new_key;
3884 int local_prev, local_target;
3887 MonoMethod *target_method = NULL;
3888 MonoClass *target_class = NULL;
3889 gboolean callvirt = FALSE;
3890 gboolean closed_over_null = FALSE;
3891 gboolean static_method_with_first_arg_bound = FALSE;
3894 * If the delegate target is null, and the target method is not static, a virtual
3895 * call is made to that method with the first delegate argument as this. This is
3896 * a non-documented .NET feature.
3898 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3900 target_method = del->method;
3901 if (target_method->is_inflated) {
3902 MonoType *target_type;
3904 g_assert (method->signature->hasthis);
3905 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3906 mono_method_get_context (method));
3907 target_class = mono_class_from_mono_type (target_type);
3909 target_class = del->method->klass;
3913 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3914 !strcmp (method->name, "Invoke"));
3916 invoke_sig = sig = mono_signature_no_pinvoke (method);
3919 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3921 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3922 invoke_sig = mono_method_signature (del->method);
3923 target_method = del->method;
3924 static_method_with_first_arg_bound = TRUE;
3927 if (callvirt || static_method_with_first_arg_bound) {
3928 GHashTable **cache_ptr;
3929 if (static_method_with_first_arg_bound)
3930 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
3932 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3934 /* We need to cache the signature+method pair */
3935 mono_marshal_lock ();
3937 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3939 key.sig = invoke_sig;
3940 key.method = target_method;
3941 res = g_hash_table_lookup (cache, &key);
3942 mono_marshal_unlock ();
3946 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3947 (GHashFunc)mono_signature_hash,
3948 (GCompareFunc)mono_metadata_signature_equal);
3949 if ((res = mono_marshal_find_in_cache (cache, sig)))
3953 static_sig = signature_dup (method->klass->image, sig);
3954 static_sig->hasthis = 0;
3955 if (!static_method_with_first_arg_bound)
3956 invoke_sig = static_sig;
3958 name = mono_signature_to_name (sig, "invoke");
3959 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3962 /* allocate local 0 (object) */
3963 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3964 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3966 g_assert (sig->hasthis);
3970 * prev.Invoke( args .. );
3971 * return this.<target>( args .. );
3974 /* this wrapper can be used in unmanaged-managed transitions */
3975 emit_thread_interrupt_checkpoint (mb);
3977 /* get this->prev */
3978 mono_mb_emit_ldarg (mb, 0);
3979 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3980 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3981 mono_mb_emit_stloc (mb, local_prev);
3982 mono_mb_emit_ldloc (mb, local_prev);
3984 /* if prev != null */
3985 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3989 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3990 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3992 mono_mb_emit_ldloc (mb, local_prev);
3993 for (i = 0; i < sig->param_count; i++)
3994 mono_mb_emit_ldarg (mb, i + 1);
3995 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3996 if (sig->ret->type != MONO_TYPE_VOID)
3997 mono_mb_emit_byte (mb, CEE_POP);
3999 /* continued or prev == null */
4000 mono_mb_patch_branch (mb, pos0);
4002 /* get this->target */
4003 mono_mb_emit_ldarg (mb, 0);
4004 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4005 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4006 mono_mb_emit_stloc (mb, local_target);
4008 /*static methods with bound first arg can have null target and still be bound*/
4009 if (!static_method_with_first_arg_bound) {
4010 /* if target != null */
4011 mono_mb_emit_ldloc (mb, local_target);
4012 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4014 /* then call this->method_ptr nonstatic */
4017 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4019 mono_mb_emit_ldloc (mb, local_target);
4020 for (i = 0; i < sig->param_count; ++i)
4021 mono_mb_emit_ldarg (mb, i + 1);
4022 mono_mb_emit_ldarg (mb, 0);
4023 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4024 mono_mb_emit_byte (mb, CEE_LDIND_I );
4025 mono_mb_emit_op (mb, CEE_CALLI, sig);
4027 mono_mb_emit_byte (mb, CEE_RET);
4030 /* else [target == null] call this->method_ptr static */
4031 mono_mb_patch_branch (mb, pos0);
4035 if (!closed_over_null) {
4036 mono_mb_emit_ldarg (mb, 1);
4037 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4038 for (i = 1; i < sig->param_count; ++i)
4039 mono_mb_emit_ldarg (mb, i + 1);
4040 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4042 mono_mb_emit_byte (mb, CEE_LDNULL);
4043 for (i = 0; i < sig->param_count; ++i)
4044 mono_mb_emit_ldarg (mb, i + 1);
4045 mono_mb_emit_op (mb, CEE_CALL, target_method);
4048 if (static_method_with_first_arg_bound) {
4049 mono_mb_emit_ldloc (mb, local_target);
4050 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4051 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4053 for (i = 0; i < sig->param_count; ++i)
4054 mono_mb_emit_ldarg (mb, i + 1);
4055 mono_mb_emit_ldarg (mb, 0);
4056 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4057 mono_mb_emit_byte (mb, CEE_LDIND_I );
4058 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4061 mono_mb_emit_byte (mb, CEE_RET);
4063 if (static_method_with_first_arg_bound || callvirt) {
4064 // From mono_mb_create_and_cache
4065 mb->skip_visibility = 1;
4066 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4067 /*We perform double checked locking, so must fence before publishing*/
4068 mono_memory_barrier ();
4069 mono_marshal_lock ();
4070 res = g_hash_table_lookup (cache, &key);
4073 new_key = g_new0 (SignatureMethodPair, 1);
4075 if (static_method_with_first_arg_bound)
4076 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4077 g_hash_table_insert (cache, new_key, res);
4078 mono_marshal_set_wrapper_info (res, new_key);
4079 mono_marshal_unlock ();
4081 mono_marshal_unlock ();
4082 mono_free_method (newm);
4085 mb->skip_visibility = 1;
4086 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4094 * signature_dup_add_this:
4096 * Make a copy of @sig, adding an explicit this argument.
4098 static MonoMethodSignature*
4099 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4101 MonoMethodSignature *res;
4104 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4105 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4106 res->param_count = sig->param_count + 1;
4107 res->hasthis = FALSE;
4108 for (i = sig->param_count - 1; i >= 0; i --)
4109 res->params [i + 1] = sig->params [i];
4110 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4116 MonoMethodSignature *ctor_sig;
4117 MonoMethodSignature *sig;
4120 /* protected by the marshal lock, contains CtorSigPair pointers */
4121 static GSList *strsig_list = NULL;
4123 static MonoMethodSignature *
4124 lookup_string_ctor_signature (MonoMethodSignature *sig)
4126 MonoMethodSignature *callsig;
4130 mono_marshal_lock ();
4132 for (item = strsig_list; item; item = item->next) {
4134 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4135 * because it is lock-free.
4137 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4142 mono_marshal_unlock ();
4146 static MonoMethodSignature *
4147 add_string_ctor_signature (MonoMethod *method)
4149 MonoMethodSignature *callsig;
4152 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4153 callsig->ret = &mono_defaults.string_class->byval_arg;
4154 cs = g_new (CtorSigPair, 1);
4156 cs->ctor_sig = mono_method_signature (method);
4158 mono_marshal_lock ();
4159 strsig_list = g_slist_prepend (strsig_list, cs);
4160 mono_marshal_unlock ();
4165 * mono_marshal_get_string_ctor_signature:
4167 * Return the modified signature used by string ctors (they return the newly created
4170 MonoMethodSignature*
4171 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4173 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4175 sig = add_string_ctor_signature (method);
4181 get_runtime_invoke_type (MonoType *t, gboolean ret)
4184 /* Can't share this with 'I' as that needs another indirection */
4187 if (MONO_TYPE_IS_REFERENCE (t))
4188 return &mono_defaults.object_class->byval_arg;
4191 /* The result needs to be boxed */
4197 return &mono_defaults.sbyte_class->byval_arg;
4199 return &mono_defaults.int16_class->byval_arg;
4201 return &mono_defaults.int32_class->byval_arg;
4203 return &mono_defaults.int64_class->byval_arg;
4204 case MONO_TYPE_BOOLEAN:
4205 return &mono_defaults.sbyte_class->byval_arg;
4206 case MONO_TYPE_CHAR:
4207 return &mono_defaults.int16_class->byval_arg;
4210 return &mono_defaults.int_class->byval_arg;
4211 case MONO_TYPE_VALUETYPE:
4212 if (t->data.klass->enumtype) {
4213 t = mono_class_enum_basetype (t->data.klass);
4223 * mono_marshal_get_runtime_invoke_sig:
4225 * Return a common signature used for sharing runtime invoke wrappers.
4227 static MonoMethodSignature*
4228 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4230 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4233 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4234 for (i = 0; i < res->param_count; ++i)
4235 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4241 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4243 /* Can't share wrappers which return a vtype since it needs to be boxed */
4244 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))
4247 return mono_metadata_signature_equal (sig1, sig2);
4253 * Emit the call to the wrapper method from a runtime invoke wrapper.
4256 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4257 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4259 gboolean virtual, gboolean need_direct_wrapper)
4261 static MonoString *string_dummy = NULL;
4263 int *tmp_nullable_locals;
4264 gboolean void_ret = FALSE;
4266 /* to make it work with our special string constructors */
4267 if (!string_dummy) {
4268 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4269 string_dummy = mono_string_new_wrapper ("dummy");
4273 g_assert (sig->hasthis);
4274 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4278 if (method->string_ctor) {
4279 mono_mb_emit_ptr (mb, string_dummy);
4281 mono_mb_emit_ldarg (mb, 0);
4285 tmp_nullable_locals = g_new0 (int, sig->param_count);
4287 for (i = 0; i < sig->param_count; i++) {
4288 MonoType *t = sig->params [i];
4291 mono_mb_emit_ldarg (mb, 1);
4293 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4294 mono_mb_emit_byte (mb, CEE_ADD);
4298 mono_mb_emit_byte (mb, CEE_LDIND_I);
4299 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4300 * So to make this work we unbox it to a local variablee and push a reference to that.
4302 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4303 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4305 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4306 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4307 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4312 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4313 type = sig->params [i]->type;
4317 case MONO_TYPE_BOOLEAN:
4321 case MONO_TYPE_CHAR:
4330 mono_mb_emit_byte (mb, CEE_LDIND_I);
4331 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4333 case MONO_TYPE_STRING:
4334 case MONO_TYPE_CLASS:
4335 case MONO_TYPE_ARRAY:
4337 case MONO_TYPE_SZARRAY:
4338 case MONO_TYPE_OBJECT:
4339 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4341 case MONO_TYPE_GENERICINST:
4342 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4343 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4348 case MONO_TYPE_VALUETYPE:
4349 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4350 type = mono_class_enum_basetype (t->data.klass)->type;
4353 mono_mb_emit_byte (mb, CEE_LDIND_I);
4354 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4355 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4356 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4357 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4359 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4363 g_assert_not_reached ();
4368 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4369 } else if (need_direct_wrapper) {
4370 mono_mb_emit_op (mb, CEE_CALL, method);
4372 mono_mb_emit_ldarg (mb, 3);
4373 mono_mb_emit_calli (mb, callsig);
4376 if (sig->ret->byref) {
4378 g_assert_not_reached ();
4381 switch (sig->ret->type) {
4382 case MONO_TYPE_VOID:
4383 if (!method->string_ctor)
4386 case MONO_TYPE_BOOLEAN:
4387 case MONO_TYPE_CHAR:
4400 case MONO_TYPE_VALUETYPE:
4401 case MONO_TYPE_TYPEDBYREF:
4402 case MONO_TYPE_GENERICINST:
4403 /* box value types */
4404 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4406 case MONO_TYPE_STRING:
4407 case MONO_TYPE_CLASS:
4408 case MONO_TYPE_ARRAY:
4409 case MONO_TYPE_SZARRAY:
4410 case MONO_TYPE_OBJECT:
4414 /* The result is an IntPtr */
4415 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4418 g_assert_not_reached ();
4422 mono_mb_emit_stloc (mb, loc_res);
4424 /* Convert back nullable-byref arguments */
4425 for (i = 0; i < sig->param_count; i++) {
4426 MonoType *t = sig->params [i];
4429 * Box the result and put it back into the array, the caller will have
4430 * to obtain it from there.
4432 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4433 mono_mb_emit_ldarg (mb, 1);
4434 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4435 mono_mb_emit_byte (mb, CEE_ADD);
4437 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4438 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4440 mono_mb_emit_byte (mb, CEE_STIND_REF);
4444 g_free (tmp_nullable_locals);
4448 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4449 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4450 gboolean virtual, gboolean need_direct_wrapper)
4453 MonoExceptionClause *clause;
4454 int loc_res, loc_exc;
4456 /* The wrapper looks like this:
4462 * } catch (Exception e) {
4470 /* allocate local 0 (object) tmp */
4471 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4472 /* allocate local 1 (object) exc */
4473 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4475 /* *exc is assumed to be initialized to NULL by the caller */
4477 mono_mb_emit_byte (mb, CEE_LDARG_2);
4478 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4483 labels [1] = mono_mb_get_label (mb);
4484 emit_thread_force_interrupt_checkpoint (mb);
4485 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4487 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4489 /* Add a try clause around the call */
4490 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4491 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4492 clause->data.catch_class = mono_defaults.exception_class;
4493 clause->try_offset = labels [1];
4494 clause->try_len = mono_mb_get_label (mb) - labels [1];
4496 clause->handler_offset = mono_mb_get_label (mb);
4499 mono_mb_emit_stloc (mb, loc_exc);
4500 mono_mb_emit_byte (mb, CEE_LDARG_2);
4501 mono_mb_emit_ldloc (mb, loc_exc);
4502 mono_mb_emit_byte (mb, CEE_STIND_REF);
4504 mono_mb_emit_branch (mb, CEE_LEAVE);
4506 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4508 mono_mb_set_clauses (mb, 1, clause);
4510 mono_mb_patch_branch (mb, labels [2]);
4511 mono_mb_emit_ldloc (mb, loc_res);
4512 mono_mb_emit_byte (mb, CEE_RET);
4517 mono_mb_patch_branch (mb, labels [0]);
4518 emit_thread_force_interrupt_checkpoint (mb);
4519 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4521 mono_mb_emit_ldloc (mb, 0);
4522 mono_mb_emit_byte (mb, CEE_RET);
4526 * generates IL code for the runtime invoke function
4527 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4529 * we also catch exceptions if exc != null
4530 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4531 * it means that the compiled code for METHOD does not have to be looked up
4532 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4533 * its METHOD argument.
4536 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4538 MonoMethodSignature *sig, *csig, *callsig;
4539 MonoMethodBuilder *mb;
4540 GHashTable *cache = NULL;
4541 MonoClass *target_klass;
4542 MonoMethod *res = NULL;
4543 static MonoMethodSignature *cctor_signature = NULL;
4544 static MonoMethodSignature *finalize_signature = NULL;
4546 const char *param_names [16];
4547 gboolean need_direct_wrapper = FALSE;
4552 if (!cctor_signature) {
4553 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4554 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4556 if (!finalize_signature) {
4557 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4558 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4559 finalize_signature->hasthis = 1;
4563 need_direct_wrapper = TRUE;
4566 * Use a separate cache indexed by methods to speed things up and to avoid the
4567 * boundless mempool growth caused by the signature_dup stuff below.
4570 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4572 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4573 res = mono_marshal_find_in_cache (cache, method);
4577 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4578 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4580 * Array Get/Set/Address methods. The JIT implements them using inline code
4581 * so we need to create an invoke wrapper which calls the method directly.
4583 need_direct_wrapper = TRUE;
4586 if (method->string_ctor) {
4587 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4589 callsig = add_string_ctor_signature (method);
4590 /* Can't share this as we push a string as this */
4591 need_direct_wrapper = TRUE;
4593 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4595 * Valuetype methods receive a managed pointer as the this argument.
4596 * Create a new signature to reflect this.
4598 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4599 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4600 need_direct_wrapper = TRUE;
4602 if (method->dynamic)
4603 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4605 callsig = mono_method_signature (method);
4609 target_klass = get_wrapper_target_class (method->klass->image);
4611 /* Try to share wrappers for non-corlib methods with simple signatures */
4612 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4613 callsig = cctor_signature;
4614 target_klass = mono_defaults.object_class;
4615 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4616 callsig = finalize_signature;
4617 target_klass = mono_defaults.object_class;
4620 if (need_direct_wrapper) {
4621 /* Already searched at the start */
4623 MonoMethodSignature *tmp_sig;
4625 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4627 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4628 (GHashFunc)mono_signature_hash,
4629 (GCompareFunc)runtime_invoke_signature_equal);
4631 /* from mono_marshal_find_in_cache */
4632 mono_marshal_lock ();
4633 res = g_hash_table_lookup (cache, callsig);
4634 mono_marshal_unlock ();
4641 /* Make a copy of the signature from the image mempool */
4643 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4647 sig = mono_method_signature (method);
4649 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4651 csig->ret = &mono_defaults.object_class->byval_arg;
4652 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4653 csig->params [0] = callsig->params [0];
4655 csig->params [0] = &mono_defaults.object_class->byval_arg;
4656 csig->params [1] = &mono_defaults.int_class->byval_arg;
4657 csig->params [2] = &mono_defaults.int_class->byval_arg;
4658 csig->params [3] = &mono_defaults.int_class->byval_arg;
4661 /* This is called from runtime code so it has to be cdecl */
4662 csig->call_convention = MONO_CALL_C;
4665 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4666 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4669 param_names [0] = "this";
4670 param_names [1] = "params";
4671 param_names [2] = "exc";
4672 param_names [3] = "method";
4673 mono_mb_set_param_names (mb, param_names);
4675 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4677 if (need_direct_wrapper) {
4678 mb->skip_visibility = 1;
4679 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4680 info = mono_wrapper_info_create (res, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4681 info->d.runtime_invoke.method = method;
4682 mono_marshal_set_wrapper_info (res, info);
4684 /* taken from mono_mb_create_and_cache */
4685 mono_marshal_lock ();
4686 res = g_hash_table_lookup (cache, callsig);
4687 mono_marshal_unlock ();
4689 /* Somebody may have created it before us */
4692 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4694 mono_marshal_lock ();
4695 res = g_hash_table_lookup (cache, callsig);
4698 g_hash_table_insert (cache, callsig, res);
4699 /* Can't insert it into wrapper_hash since the key is a signature */
4700 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4702 mono_free_method (newm);
4704 mono_marshal_unlock ();
4707 /* end mono_mb_create_and_cache */
4716 * mono_marshal_get_runtime_invoke_dynamic:
4718 * Return a method which can be used to invoke managed methods from native code
4720 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4721 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4722 * ARGS should point to an architecture specific structure containing
4723 * the arguments and space for the return value.
4724 * The other arguments are the same as for runtime_invoke (), except that
4725 * ARGS should contain the this argument too.
4726 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4727 * is only one copy of it, which is useful in full-aot.
4728 * The wrapper info for the wrapper is a WrapperInfo structure.
4731 mono_marshal_get_runtime_invoke_dynamic (void)
4733 static MonoMethod *method;
4734 MonoMethodSignature *csig;
4735 MonoExceptionClause *clause;
4736 MonoMethodBuilder *mb;
4744 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4746 csig->ret = &mono_defaults.void_class->byval_arg;
4747 csig->params [0] = &mono_defaults.int_class->byval_arg;
4748 csig->params [1] = &mono_defaults.int_class->byval_arg;
4749 csig->params [2] = &mono_defaults.int_class->byval_arg;
4750 csig->params [3] = &mono_defaults.int_class->byval_arg;
4752 name = g_strdup ("runtime_invoke_dynamic");
4753 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4756 /* allocate local 0 (object) tmp */
4757 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4758 /* allocate local 1 (object) exc */
4759 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4761 /* cond set *exc to null */
4762 mono_mb_emit_byte (mb, CEE_LDARG_1);
4763 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4764 mono_mb_emit_byte (mb, 3);
4765 mono_mb_emit_byte (mb, CEE_LDARG_1);
4766 mono_mb_emit_byte (mb, CEE_LDNULL);
4767 mono_mb_emit_byte (mb, CEE_STIND_REF);
4769 emit_thread_force_interrupt_checkpoint (mb);
4771 mono_mb_emit_byte (mb, CEE_LDARG_0);
4772 mono_mb_emit_byte (mb, CEE_LDARG_2);
4773 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4774 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4776 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4778 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4779 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4780 clause->try_len = mono_mb_get_label (mb);
4783 clause->data.filter_offset = mono_mb_get_label (mb);
4785 mono_mb_emit_byte (mb, CEE_POP);
4786 mono_mb_emit_byte (mb, CEE_LDARG_1);
4787 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4788 mono_mb_emit_byte (mb, CEE_PREFIX1);
4789 mono_mb_emit_byte (mb, CEE_CGT_UN);
4790 mono_mb_emit_byte (mb, CEE_PREFIX1);
4791 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4793 clause->handler_offset = mono_mb_get_label (mb);
4796 /* store exception */
4797 mono_mb_emit_stloc (mb, 1);
4799 mono_mb_emit_byte (mb, CEE_LDARG_1);
4800 mono_mb_emit_ldloc (mb, 1);
4801 mono_mb_emit_byte (mb, CEE_STIND_REF);
4803 mono_mb_emit_byte (mb, CEE_LDNULL);
4804 mono_mb_emit_stloc (mb, 0);
4806 /* Check for the abort exception */
4807 mono_mb_emit_ldloc (mb, 1);
4808 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4809 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4811 /* Delay the abort exception */
4812 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4814 mono_mb_patch_short_branch (mb, posna);
4815 mono_mb_emit_branch (mb, CEE_LEAVE);
4817 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4819 mono_mb_set_clauses (mb, 1, clause);
4822 mono_mb_patch_branch (mb, pos);
4823 //mono_mb_emit_ldloc (mb, 0);
4824 mono_mb_emit_byte (mb, CEE_RET);
4826 mono_loader_lock ();
4827 /* double-checked locking */
4829 method = mono_mb_create_method (mb, csig, 16);
4830 info = mono_wrapper_info_create (method, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4831 mono_marshal_set_wrapper_info (method, info);
4833 mono_loader_unlock ();
4841 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4843 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4844 klass->name_space, klass->name);
4846 mono_mb_emit_exception_marshal_directive (mb, msg);
4850 * mono_marshal_get_ldfld_remote_wrapper:
4851 * @klass: The return type
4853 * This method generates a wrapper for calling mono_load_remote_field_new.
4854 * The return type is ignored for now, as mono_load_remote_field_new () always
4855 * returns an object. In the future, to optimize some codepaths, we might
4856 * call a different function that takes a pointer to a valuetype, instead.
4859 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4861 MonoMethodSignature *sig, *csig;
4862 MonoMethodBuilder *mb;
4864 static MonoMethod* cached = NULL;
4866 mono_marshal_lock ();
4868 mono_marshal_unlock ();
4871 mono_marshal_unlock ();
4873 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4875 mb->method->save_lmf = 1;
4877 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4878 sig->params [0] = &mono_defaults.object_class->byval_arg;
4879 sig->params [1] = &mono_defaults.int_class->byval_arg;
4880 sig->params [2] = &mono_defaults.int_class->byval_arg;
4881 sig->ret = &mono_defaults.object_class->byval_arg;
4883 mono_mb_emit_ldarg (mb, 0);
4884 mono_mb_emit_ldarg (mb, 1);
4885 mono_mb_emit_ldarg (mb, 2);
4887 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4888 csig->params [0] = &mono_defaults.object_class->byval_arg;
4889 csig->params [1] = &mono_defaults.int_class->byval_arg;
4890 csig->params [2] = &mono_defaults.int_class->byval_arg;
4891 csig->ret = &mono_defaults.object_class->byval_arg;
4894 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4895 emit_thread_interrupt_checkpoint (mb);
4897 mono_mb_emit_byte (mb, CEE_RET);
4899 mono_marshal_lock ();
4901 mono_marshal_unlock ();
4904 newm = mono_mb_create_method (mb, sig, 4);
4905 mono_marshal_lock ();
4910 mono_marshal_unlock ();
4912 mono_marshal_unlock ();
4913 mono_free_method (newm);
4922 * mono_marshal_get_ldfld_wrapper:
4923 * @type: the type of the field
4925 * This method generates a function which can be use to load a field with type
4926 * @type from an object. The generated function has the following signature:
4927 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4930 mono_marshal_get_ldfld_wrapper (MonoType *type)
4932 MonoMethodSignature *sig;
4933 MonoMethodBuilder *mb;
4938 int t, pos0, pos1 = 0;
4940 type = mono_type_get_underlying_type (type);
4945 if (type->type == MONO_TYPE_SZARRAY) {
4946 klass = mono_defaults.array_class;
4947 } else if (type->type == MONO_TYPE_VALUETYPE) {
4948 klass = type->data.klass;
4949 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4950 klass = mono_defaults.object_class;
4951 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4952 klass = mono_defaults.int_class;
4953 } else if (t == MONO_TYPE_GENERICINST) {
4954 if (mono_type_generic_inst_is_valuetype (type))
4955 klass = mono_class_from_mono_type (type);
4957 klass = mono_defaults.object_class;
4959 klass = mono_class_from_mono_type (type);
4962 klass = mono_defaults.int_class;
4965 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4966 if ((res = mono_marshal_find_in_cache (cache, klass)))
4969 /* we add the %p pointer value of klass because class names are not unique */
4970 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4971 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4974 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4975 sig->params [0] = &mono_defaults.object_class->byval_arg;
4976 sig->params [1] = &mono_defaults.int_class->byval_arg;
4977 sig->params [2] = &mono_defaults.int_class->byval_arg;
4978 sig->params [3] = &mono_defaults.int_class->byval_arg;
4979 sig->ret = &klass->byval_arg;
4981 mono_mb_emit_ldarg (mb, 0);
4982 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4984 mono_mb_emit_ldarg (mb, 0);
4985 mono_mb_emit_ldarg (mb, 1);
4986 mono_mb_emit_ldarg (mb, 2);
4988 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4991 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4992 csig->params [0] = &mono_defaults.object_class->byval_arg;
4993 csig->params [1] = &mono_defaults.int_class->byval_arg;
4994 csig->params [2] = &mono_defaults.int_class->byval_arg;
4995 csig->ret = &klass->this_arg;
4998 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4999 emit_thread_interrupt_checkpoint (mb);
5002 if (klass->valuetype) {
5003 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5004 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5006 mono_mb_emit_byte (mb, CEE_RET);
5010 mono_mb_patch_branch (mb, pos0);
5012 mono_mb_emit_ldarg (mb, 0);
5013 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5014 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5015 mono_mb_emit_ldarg (mb, 3);
5016 mono_mb_emit_byte (mb, CEE_ADD);
5018 if (klass->valuetype)
5019 mono_mb_patch_branch (mb, pos1);
5024 case MONO_TYPE_BOOLEAN:
5025 case MONO_TYPE_CHAR:
5034 case MONO_TYPE_ARRAY:
5035 case MONO_TYPE_SZARRAY:
5036 case MONO_TYPE_OBJECT:
5037 case MONO_TYPE_CLASS:
5038 case MONO_TYPE_STRING:
5042 case MONO_TYPE_FNPTR:
5043 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5045 case MONO_TYPE_VALUETYPE:
5046 g_assert (!klass->enumtype);
5047 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5049 case MONO_TYPE_GENERICINST:
5050 if (mono_type_generic_inst_is_valuetype (type)) {
5051 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5053 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5057 g_warning ("type %x not implemented", type->type);
5058 g_assert_not_reached ();
5061 mono_mb_emit_byte (mb, CEE_RET);
5063 res = mono_mb_create_and_cache (cache, klass,
5064 mb, sig, sig->param_count + 16);
5071 * mono_marshal_get_ldflda_wrapper:
5072 * @type: the type of the field
5074 * This method generates a function which can be used to load a field address
5075 * from an object. The generated function has the following signature:
5076 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5079 mono_marshal_get_ldflda_wrapper (MonoType *type)
5081 MonoMethodSignature *sig;
5082 MonoMethodBuilder *mb;
5087 int t, pos0, pos1, pos2, pos3;
5089 type = mono_type_get_underlying_type (type);
5093 if (type->type == MONO_TYPE_SZARRAY) {
5094 klass = mono_defaults.array_class;
5095 } else if (type->type == MONO_TYPE_VALUETYPE) {
5096 klass = type->data.klass;
5097 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5098 t == MONO_TYPE_CLASS) {
5099 klass = mono_defaults.object_class;
5100 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5101 klass = mono_defaults.int_class;
5102 } else if (t == MONO_TYPE_GENERICINST) {
5103 if (mono_type_generic_inst_is_valuetype (type))
5104 klass = mono_class_from_mono_type (type);
5106 klass = mono_defaults.object_class;
5108 klass = mono_class_from_mono_type (type);
5111 klass = mono_defaults.int_class;
5114 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5115 if ((res = mono_marshal_find_in_cache (cache, klass)))
5118 /* we add the %p pointer value of klass because class names are not unique */
5119 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5120 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5123 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5124 sig->params [0] = &mono_defaults.object_class->byval_arg;
5125 sig->params [1] = &mono_defaults.int_class->byval_arg;
5126 sig->params [2] = &mono_defaults.int_class->byval_arg;
5127 sig->params [3] = &mono_defaults.int_class->byval_arg;
5128 sig->ret = &mono_defaults.int_class->byval_arg;
5130 /* if typeof (this) != transparent_proxy goto pos0 */
5131 mono_mb_emit_ldarg (mb, 0);
5132 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5134 /* if same_appdomain goto pos1 */
5135 mono_mb_emit_ldarg (mb, 0);
5136 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5138 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5140 /* same app domain */
5141 mono_mb_patch_branch (mb, pos1);
5143 /* if typeof (this) != contextbound goto pos2 */
5144 mono_mb_emit_ldarg (mb, 0);
5145 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5147 /* if this->rp->context == mono_context_get goto pos3 */
5148 mono_mb_emit_ldarg (mb, 0);
5149 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5150 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5151 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5152 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5153 mono_mb_emit_icall (mb, mono_context_get);
5154 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5156 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5158 mono_mb_patch_branch (mb, pos2);
5159 mono_mb_patch_branch (mb, pos3);
5161 /* return the address of the field from this->rp->unwrapped_server */
5162 mono_mb_emit_ldarg (mb, 0);
5163 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5164 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5165 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5166 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5167 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5168 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5169 mono_mb_emit_ldarg (mb, 3);
5170 mono_mb_emit_byte (mb, CEE_ADD);
5171 mono_mb_emit_byte (mb, CEE_RET);
5173 /* not a proxy: return the address of the field directly */
5174 mono_mb_patch_branch (mb, pos0);
5176 mono_mb_emit_ldarg (mb, 0);
5177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5178 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5179 mono_mb_emit_ldarg (mb, 3);
5180 mono_mb_emit_byte (mb, CEE_ADD);
5182 mono_mb_emit_byte (mb, CEE_RET);
5184 res = mono_mb_create_and_cache (cache, klass,
5185 mb, sig, sig->param_count + 16);
5192 * mono_marshal_get_stfld_remote_wrapper:
5193 * klass: The type of the field
5195 * This function generates a wrapper for calling mono_store_remote_field_new
5196 * with the appropriate signature.
5197 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5198 * klass argument anymore.
5201 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5203 MonoMethodSignature *sig, *csig;
5204 MonoMethodBuilder *mb;
5206 static MonoMethod *cached = NULL;
5208 mono_marshal_lock ();
5210 mono_marshal_unlock ();
5213 mono_marshal_unlock ();
5215 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5217 mb->method->save_lmf = 1;
5219 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5220 sig->params [0] = &mono_defaults.object_class->byval_arg;
5221 sig->params [1] = &mono_defaults.int_class->byval_arg;
5222 sig->params [2] = &mono_defaults.int_class->byval_arg;
5223 sig->params [3] = &mono_defaults.object_class->byval_arg;
5224 sig->ret = &mono_defaults.void_class->byval_arg;
5226 mono_mb_emit_ldarg (mb, 0);
5227 mono_mb_emit_ldarg (mb, 1);
5228 mono_mb_emit_ldarg (mb, 2);
5229 mono_mb_emit_ldarg (mb, 3);
5231 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5232 csig->params [0] = &mono_defaults.object_class->byval_arg;
5233 csig->params [1] = &mono_defaults.int_class->byval_arg;
5234 csig->params [2] = &mono_defaults.int_class->byval_arg;
5235 csig->params [3] = &mono_defaults.object_class->byval_arg;
5236 csig->ret = &mono_defaults.void_class->byval_arg;
5239 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5240 emit_thread_interrupt_checkpoint (mb);
5242 mono_mb_emit_byte (mb, CEE_RET);
5244 mono_marshal_lock ();
5246 mono_marshal_unlock ();
5249 newm = mono_mb_create_method (mb, sig, 6);
5250 mono_marshal_lock ();
5255 mono_marshal_unlock ();
5257 mono_marshal_unlock ();
5258 mono_free_method (newm);
5267 * mono_marshal_get_stfld_wrapper:
5268 * @type: the type of the field
5270 * This method generates a function which can be use to store a field with type
5271 * @type. The generated function has the following signature:
5272 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5275 mono_marshal_get_stfld_wrapper (MonoType *type)
5277 MonoMethodSignature *sig;
5278 MonoMethodBuilder *mb;
5285 type = mono_type_get_underlying_type (type);
5289 if (type->type == MONO_TYPE_SZARRAY) {
5290 klass = mono_defaults.array_class;
5291 } else if (type->type == MONO_TYPE_VALUETYPE) {
5292 klass = type->data.klass;
5293 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5294 klass = mono_defaults.object_class;
5295 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5296 klass = mono_defaults.int_class;
5297 } else if (t == MONO_TYPE_GENERICINST) {
5298 if (mono_type_generic_inst_is_valuetype (type))
5299 klass = mono_class_from_mono_type (type);
5301 klass = mono_defaults.object_class;
5303 klass = mono_class_from_mono_type (type);
5306 klass = mono_defaults.int_class;
5309 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5310 if ((res = mono_marshal_find_in_cache (cache, klass)))
5313 /* we add the %p pointer value of klass because class names are not unique */
5314 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5315 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5318 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5319 sig->params [0] = &mono_defaults.object_class->byval_arg;
5320 sig->params [1] = &mono_defaults.int_class->byval_arg;
5321 sig->params [2] = &mono_defaults.int_class->byval_arg;
5322 sig->params [3] = &mono_defaults.int_class->byval_arg;
5323 sig->params [4] = &klass->byval_arg;
5324 sig->ret = &mono_defaults.void_class->byval_arg;
5326 mono_mb_emit_ldarg (mb, 0);
5327 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5329 mono_mb_emit_ldarg (mb, 0);
5330 mono_mb_emit_ldarg (mb, 1);
5331 mono_mb_emit_ldarg (mb, 2);
5332 mono_mb_emit_ldarg (mb, 4);
5333 if (klass->valuetype)
5334 mono_mb_emit_op (mb, CEE_BOX, klass);
5336 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5338 mono_mb_emit_byte (mb, CEE_RET);
5340 mono_mb_patch_branch (mb, pos);
5342 mono_mb_emit_ldarg (mb, 0);
5343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5344 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5345 mono_mb_emit_ldarg (mb, 3);
5346 mono_mb_emit_byte (mb, CEE_ADD);
5347 mono_mb_emit_ldarg (mb, 4);
5352 case MONO_TYPE_BOOLEAN:
5353 case MONO_TYPE_CHAR:
5362 case MONO_TYPE_ARRAY:
5363 case MONO_TYPE_SZARRAY:
5364 case MONO_TYPE_OBJECT:
5365 case MONO_TYPE_CLASS:
5366 case MONO_TYPE_STRING:
5370 case MONO_TYPE_FNPTR:
5371 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5373 case MONO_TYPE_VALUETYPE:
5374 g_assert (!klass->enumtype);
5375 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5377 case MONO_TYPE_GENERICINST:
5378 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5381 g_warning ("type %x not implemented", type->type);
5382 g_assert_not_reached ();
5385 mono_mb_emit_byte (mb, CEE_RET);
5387 res = mono_mb_create_and_cache (cache, klass,
5388 mb, sig, sig->param_count + 16);
5395 * generates IL code for the icall wrapper (the generated method
5396 * calls the unmanaged code in func)
5397 * The wrapper info for the wrapper is a WrapperInfo structure.
5400 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5402 MonoMethodSignature *csig, *csig2;
5403 MonoMethodBuilder *mb;
5408 g_assert (sig->pinvoke);
5410 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5412 mb->method->save_lmf = 1;
5414 /* Add an explicit this argument */
5416 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5418 csig2 = signature_dup (mono_defaults.corlib, sig);
5421 mono_mb_emit_byte (mb, CEE_LDARG_0);
5423 for (i = 0; i < sig->param_count; i++)
5424 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5426 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5427 if (check_exceptions)
5428 emit_thread_interrupt_checkpoint (mb);
5429 mono_mb_emit_byte (mb, CEE_RET);
5431 csig = signature_dup (mono_defaults.corlib, sig);
5433 if (csig->call_convention == MONO_CALL_VARARG)
5434 csig->call_convention = 0;
5436 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5439 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ICALL_WRAPPER);
5440 mono_marshal_set_wrapper_info (res, info);
5446 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5447 MonoMarshalSpec *spec,
5448 int conv_arg, MonoType **conv_arg_type,
5449 MarshalAction action)
5453 static MonoClass *ICustomMarshaler = NULL;
5454 static MonoMethod *cleanup_native, *cleanup_managed;
5455 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5456 MonoMethod *get_instance = NULL;
5457 MonoMethodBuilder *mb = m->mb;
5458 char *exception_msg = NULL;
5462 if (!ICustomMarshaler) {
5463 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5464 if (!ICustomMarshaler) {
5465 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5466 goto handle_exception;
5469 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5470 g_assert (cleanup_native);
5471 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5472 g_assert (cleanup_managed);
5473 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5474 g_assert (marshal_managed_to_native);
5475 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5476 g_assert (marshal_native_to_managed);
5479 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5480 g_assert (mtype != NULL);
5481 mklass = mono_class_from_mono_type (mtype);
5482 g_assert (mklass != NULL);
5484 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5485 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5487 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5489 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5490 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5491 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5492 (get_sig->params [0]->type != MONO_TYPE_STRING))
5493 get_instance = NULL;
5497 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);
5500 /* Throw exception and emit compensation code if neccesary */
5501 if (exception_msg) {
5503 case MARSHAL_ACTION_CONV_IN:
5504 case MARSHAL_ACTION_CONV_RESULT:
5505 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5506 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5507 mono_mb_emit_byte (mb, CEE_POP);
5509 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5510 g_free (exception_msg);
5513 case MARSHAL_ACTION_PUSH:
5514 mono_mb_emit_byte (mb, CEE_LDNULL);
5522 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5523 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5526 case MARSHAL_ACTION_CONV_IN:
5528 case MONO_TYPE_CLASS:
5529 case MONO_TYPE_OBJECT:
5530 case MONO_TYPE_STRING:
5531 case MONO_TYPE_ARRAY:
5532 case MONO_TYPE_SZARRAY:
5533 case MONO_TYPE_VALUETYPE:
5537 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5538 g_assert_not_reached ();
5542 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5544 mono_mb_emit_byte (mb, CEE_LDNULL);
5545 mono_mb_emit_stloc (mb, conv_arg);
5547 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5550 /* Minic MS.NET behavior */
5551 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5554 /* Check for null */
5555 mono_mb_emit_ldarg (mb, argnum);
5557 mono_mb_emit_byte (mb, CEE_LDIND_I);
5558 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5560 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5562 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5564 mono_mb_emit_ldarg (mb, argnum);
5566 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5568 if (t->type == MONO_TYPE_VALUETYPE) {
5570 * Since we can't determine the type of the argument, we
5571 * will assume the unmanaged function takes a pointer.
5573 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5575 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5578 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5579 mono_mb_emit_stloc (mb, conv_arg);
5581 mono_mb_patch_branch (mb, pos2);
5584 case MARSHAL_ACTION_CONV_OUT:
5585 /* Check for null */
5586 mono_mb_emit_ldloc (mb, conv_arg);
5587 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5590 mono_mb_emit_ldarg (mb, argnum);
5592 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5594 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5596 mono_mb_emit_ldloc (mb, conv_arg);
5597 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5598 mono_mb_emit_byte (mb, CEE_STIND_REF);
5599 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5600 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5602 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5604 mono_mb_emit_ldloc (mb, conv_arg);
5605 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5607 /* We have nowhere to store the result */
5608 mono_mb_emit_byte (mb, CEE_POP);
5611 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5613 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5615 mono_mb_emit_ldloc (mb, conv_arg);
5617 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5619 mono_mb_patch_branch (mb, pos2);
5622 case MARSHAL_ACTION_PUSH:
5624 mono_mb_emit_ldloc_addr (mb, conv_arg);
5626 mono_mb_emit_ldloc (mb, conv_arg);
5629 case MARSHAL_ACTION_CONV_RESULT:
5630 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5632 mono_mb_emit_stloc (mb, 3);
5634 mono_mb_emit_ldloc (mb, 3);
5635 mono_mb_emit_stloc (mb, loc1);
5637 /* Check for null */
5638 mono_mb_emit_ldloc (mb, 3);
5639 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5641 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5643 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5644 mono_mb_emit_byte (mb, CEE_DUP);
5646 mono_mb_emit_ldloc (mb, 3);
5647 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5648 mono_mb_emit_stloc (mb, 3);
5650 mono_mb_emit_ldloc (mb, loc1);
5651 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5653 mono_mb_patch_branch (mb, pos2);
5656 case MARSHAL_ACTION_MANAGED_CONV_IN:
5657 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5659 mono_mb_emit_byte (mb, CEE_LDNULL);
5660 mono_mb_emit_stloc (mb, conv_arg);
5662 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5665 /* Check for null */
5666 mono_mb_emit_ldarg (mb, argnum);
5668 mono_mb_emit_byte (mb, CEE_LDIND_I);
5669 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5671 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5672 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5674 mono_mb_emit_ldarg (mb, argnum);
5676 mono_mb_emit_byte (mb, CEE_LDIND_I);
5678 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5679 mono_mb_emit_stloc (mb, conv_arg);
5681 mono_mb_patch_branch (mb, pos2);
5684 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5685 g_assert (!t->byref);
5687 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5689 mono_mb_emit_stloc (mb, 3);
5691 mono_mb_emit_ldloc (mb, 3);
5692 mono_mb_emit_stloc (mb, loc1);
5694 /* Check for null */
5695 mono_mb_emit_ldloc (mb, 3);
5696 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5698 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5699 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5700 mono_mb_emit_byte (mb, CEE_DUP);
5702 mono_mb_emit_ldloc (mb, 3);
5703 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5704 mono_mb_emit_stloc (mb, 3);
5706 mono_mb_emit_ldloc (mb, loc1);
5707 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5709 mono_mb_patch_branch (mb, pos2);
5712 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5714 /* Check for null */
5715 mono_mb_emit_ldloc (mb, conv_arg);
5716 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5719 mono_mb_emit_ldarg (mb, argnum);
5721 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5723 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5725 mono_mb_emit_ldloc (mb, conv_arg);
5726 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5727 mono_mb_emit_byte (mb, CEE_STIND_I);
5730 /* Call CleanUpManagedData */
5731 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5733 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5735 mono_mb_emit_ldloc (mb, conv_arg);
5736 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5738 mono_mb_patch_branch (mb, pos2);
5742 g_assert_not_reached ();
5749 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5750 MonoMarshalSpec *spec,
5751 int conv_arg, MonoType **conv_arg_type,
5752 MarshalAction action)
5754 MonoMethodBuilder *mb = m->mb;
5757 case MARSHAL_ACTION_CONV_IN: {
5758 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5760 g_assert (t->type == MONO_TYPE_OBJECT);
5761 g_assert (!t->byref);
5763 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5764 mono_mb_emit_ldarg (mb, argnum);
5765 mono_mb_emit_icon (mb, encoding);
5766 mono_mb_emit_icon (mb, t->attrs);
5767 mono_mb_emit_icall (mb, mono_marshal_asany);
5768 mono_mb_emit_stloc (mb, conv_arg);
5772 case MARSHAL_ACTION_PUSH:
5773 mono_mb_emit_ldloc (mb, conv_arg);
5776 case MARSHAL_ACTION_CONV_OUT: {
5777 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5779 mono_mb_emit_ldarg (mb, argnum);
5780 mono_mb_emit_ldloc (mb, conv_arg);
5781 mono_mb_emit_icon (mb, encoding);
5782 mono_mb_emit_icon (mb, t->attrs);
5783 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5788 g_assert_not_reached ();
5795 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5796 MonoMarshalSpec *spec,
5797 int conv_arg, MonoType **conv_arg_type,
5798 MarshalAction action)
5800 MonoMethodBuilder *mb = m->mb;
5801 MonoClass *klass, *date_time_class;
5804 klass = mono_class_from_mono_type (t);
5806 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5809 case MARSHAL_ACTION_CONV_IN:
5810 if (klass == date_time_class) {
5811 /* Convert it to an OLE DATE type */
5812 static MonoMethod *to_oadate;
5815 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5816 g_assert (to_oadate);
5818 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5821 mono_mb_emit_ldarg (mb, argnum);
5822 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5825 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5827 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5829 mono_mb_emit_ldarg_addr (mb, argnum);
5830 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5831 mono_mb_emit_stloc (mb, conv_arg);
5835 mono_mb_patch_branch (mb, pos);
5839 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5840 klass->blittable || klass->enumtype)
5843 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5845 /* store the address of the source into local variable 0 */
5847 mono_mb_emit_ldarg (mb, argnum);
5849 mono_mb_emit_ldarg_addr (mb, argnum);
5851 mono_mb_emit_stloc (mb, 0);
5853 /* allocate space for the native struct and
5854 * store the address into local variable 1 (dest) */
5855 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5856 mono_mb_emit_byte (mb, CEE_PREFIX1);
5857 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5858 mono_mb_emit_stloc (mb, conv_arg);
5861 mono_mb_emit_ldloc (mb, 0);
5862 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5865 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5867 mono_mb_emit_ldloc (mb, conv_arg);
5868 mono_mb_emit_stloc (mb, 1);
5870 /* emit valuetype conversion code */
5871 emit_struct_conv (mb, klass, FALSE);
5875 mono_mb_patch_branch (mb, pos);
5878 case MARSHAL_ACTION_PUSH:
5879 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5881 g_assert (!t->byref);
5883 /* Have to change the signature since the vtype is passed byref */
5884 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5886 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5887 klass->blittable || klass->enumtype)
5888 mono_mb_emit_ldarg_addr (mb, argnum);
5890 mono_mb_emit_ldloc (mb, conv_arg);
5894 if (klass == date_time_class) {
5896 mono_mb_emit_ldloc_addr (mb, conv_arg);
5898 mono_mb_emit_ldloc (mb, conv_arg);
5902 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5903 klass->blittable || klass->enumtype) {
5904 mono_mb_emit_ldarg (mb, argnum);
5907 mono_mb_emit_ldloc (mb, conv_arg);
5909 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5910 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5914 case MARSHAL_ACTION_CONV_OUT:
5915 if (klass == date_time_class) {
5916 /* Convert from an OLE DATE type */
5917 static MonoMethod *from_oadate;
5922 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5924 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5925 g_assert (from_oadate);
5927 mono_mb_emit_ldarg (mb, argnum);
5928 mono_mb_emit_ldloc (mb, conv_arg);
5929 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5930 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5935 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5936 klass->blittable || klass->enumtype)
5940 /* dst = argument */
5941 mono_mb_emit_ldarg (mb, argnum);
5942 mono_mb_emit_stloc (mb, 1);
5944 mono_mb_emit_ldloc (mb, 1);
5945 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5947 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5948 /* src = tmp_locals [i] */
5949 mono_mb_emit_ldloc (mb, conv_arg);
5950 mono_mb_emit_stloc (mb, 0);
5952 /* emit valuetype conversion code */
5953 emit_struct_conv (mb, klass, TRUE);
5957 emit_struct_free (mb, klass, conv_arg);
5960 mono_mb_patch_branch (mb, pos);
5963 case MARSHAL_ACTION_CONV_RESULT:
5964 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5966 mono_mb_emit_stloc (mb, 3);
5970 /* load pointer to returned value type */
5971 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5972 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5973 /* store the address of the source into local variable 0 */
5974 mono_mb_emit_stloc (mb, 0);
5976 mono_mb_emit_ldloc_addr (mb, 3);
5977 mono_mb_emit_stloc (mb, 1);
5979 /* emit valuetype conversion code */
5980 emit_struct_conv (mb, klass, TRUE);
5983 case MARSHAL_ACTION_MANAGED_CONV_IN:
5984 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5985 klass->blittable || klass->enumtype) {
5990 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5992 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5996 mono_mb_emit_ldarg (mb, argnum);
5998 mono_mb_emit_ldarg_addr (mb, argnum);
5999 mono_mb_emit_stloc (mb, 0);
6002 mono_mb_emit_ldloc (mb, 0);
6003 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6006 mono_mb_emit_ldloc_addr (mb, conv_arg);
6007 mono_mb_emit_stloc (mb, 1);
6009 /* emit valuetype conversion code */
6010 emit_struct_conv (mb, klass, TRUE);
6013 mono_mb_patch_branch (mb, pos);
6016 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6017 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6018 klass->blittable || klass->enumtype) {
6022 /* Check for null */
6023 mono_mb_emit_ldarg (mb, argnum);
6024 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6027 mono_mb_emit_ldloc_addr (mb, conv_arg);
6028 mono_mb_emit_stloc (mb, 0);
6031 mono_mb_emit_ldarg (mb, argnum);
6032 mono_mb_emit_stloc (mb, 1);
6034 /* emit valuetype conversion code */
6035 emit_struct_conv (mb, klass, FALSE);
6037 mono_mb_patch_branch (mb, pos2);
6040 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6041 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6042 klass->blittable || klass->enumtype) {
6043 mono_mb_emit_stloc (mb, 3);
6048 /* load pointer to returned value type */
6049 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6050 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6052 /* store the address of the source into local variable 0 */
6053 mono_mb_emit_stloc (mb, 0);
6054 /* allocate space for the native struct and
6055 * store the address into dst_ptr */
6056 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6057 m->retobj_class = klass;
6058 g_assert (m->retobj_var);
6059 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6060 mono_mb_emit_byte (mb, CEE_CONV_I);
6061 mono_mb_emit_icall (mb, mono_marshal_alloc);
6062 mono_mb_emit_stloc (mb, 1);
6063 mono_mb_emit_ldloc (mb, 1);
6064 mono_mb_emit_stloc (mb, m->retobj_var);
6066 /* emit valuetype conversion code */
6067 emit_struct_conv (mb, klass, FALSE);
6071 g_assert_not_reached ();
6078 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6079 MonoMarshalSpec *spec,
6080 int conv_arg, MonoType **conv_arg_type,
6081 MarshalAction action)
6083 MonoMethodBuilder *mb = m->mb;
6084 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6085 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6089 case MARSHAL_ACTION_CONV_IN:
6090 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6091 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6094 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6097 mono_mb_emit_ldarg (mb, argnum);
6098 mono_mb_emit_byte (mb, CEE_LDIND_I);
6100 mono_mb_emit_ldarg (mb, argnum);
6104 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6105 MonoException *exc = mono_get_exception_not_implemented (msg);
6106 g_warning ("%s", msg);
6108 mono_raise_exception (exc);
6111 mono_mb_emit_icall (mb, conv_to_icall (conv));
6113 mono_mb_emit_stloc (mb, conv_arg);
6116 case MARSHAL_ACTION_CONV_OUT:
6117 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6119 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6120 mono_mb_emit_exception_marshal_directive (mb, msg);
6124 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6125 static MonoMethod *m;
6128 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6133 * Have to allocate a new string with the same length as the original, and
6134 * copy the contents of the buffer pointed to by CONV_ARG into it.
6136 g_assert (t->byref);
6137 mono_mb_emit_ldarg (mb, argnum);
6138 mono_mb_emit_ldloc (mb, conv_arg);
6139 mono_mb_emit_ldarg (mb, argnum);
6140 mono_mb_emit_byte (mb, CEE_LDIND_I);
6141 mono_mb_emit_managed_call (mb, m, NULL);
6142 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
6143 mono_mb_emit_byte (mb, CEE_STIND_REF);
6144 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6145 mono_mb_emit_ldarg (mb, argnum);
6146 mono_mb_emit_ldloc (mb, conv_arg);
6147 mono_mb_emit_icall (mb, conv_to_icall (conv));
6148 mono_mb_emit_byte (mb, CEE_STIND_REF);
6151 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6152 mono_mb_emit_ldloc (mb, conv_arg);
6153 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6154 mono_mb_emit_icall (mb, mono_free_bstr);
6156 mono_mb_emit_icall (mb, mono_marshal_free);
6160 case MARSHAL_ACTION_PUSH:
6161 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
6162 mono_mb_emit_ldloc_addr (mb, conv_arg);
6164 mono_mb_emit_ldloc (mb, conv_arg);
6167 case MARSHAL_ACTION_CONV_RESULT:
6168 mono_mb_emit_stloc (mb, 0);
6170 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6172 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6173 mono_mb_emit_exception_marshal_directive (mb, msg);
6177 mono_mb_emit_ldloc (mb, 0);
6178 mono_mb_emit_icall (mb, conv_to_icall (conv));
6179 mono_mb_emit_stloc (mb, 3);
6181 /* free the string */
6182 mono_mb_emit_ldloc (mb, 0);
6183 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6184 mono_mb_emit_icall (mb, mono_free_bstr);
6186 mono_mb_emit_icall (mb, mono_marshal_free);
6189 case MARSHAL_ACTION_MANAGED_CONV_IN:
6190 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6192 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6195 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6199 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6201 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6202 mono_mb_emit_exception_marshal_directive (mb, msg);
6206 mono_mb_emit_ldarg (mb, argnum);
6208 mono_mb_emit_byte (mb, CEE_LDIND_I);
6209 mono_mb_emit_icall (mb, conv_to_icall (conv));
6210 mono_mb_emit_stloc (mb, conv_arg);
6213 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6216 mono_mb_emit_ldarg (mb, argnum);
6217 mono_mb_emit_ldloc (mb, conv_arg);
6218 mono_mb_emit_icall (mb, conv_to_icall (conv));
6219 mono_mb_emit_byte (mb, CEE_STIND_I);
6224 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6225 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6226 /* We need to make a copy so the caller is able to free it */
6227 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6229 mono_mb_emit_icall (mb, conv_to_icall (conv));
6230 mono_mb_emit_stloc (mb, 3);
6234 g_assert_not_reached ();
6241 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6242 MonoMarshalSpec *spec, int conv_arg,
6243 MonoType **conv_arg_type, MarshalAction action)
6245 MonoMethodBuilder *mb = m->mb;
6248 case MARSHAL_ACTION_CONV_IN: {
6249 MonoType *intptr_type;
6250 int dar_release_slot, pos;
6252 intptr_type = &mono_defaults.int_class->byval_arg;
6253 conv_arg = mono_mb_add_local (mb, intptr_type);
6254 *conv_arg_type = intptr_type;
6256 if (!sh_dangerous_add_ref)
6257 init_safe_handle ();
6259 mono_mb_emit_ldarg (mb, argnum);
6260 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6261 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6263 mono_mb_patch_branch (mb, pos);
6266 * My tests in show that ref SafeHandles are not really
6267 * passed as ref objects. Instead a NULL is passed as the
6270 mono_mb_emit_icon (mb, 0);
6271 mono_mb_emit_stloc (mb, conv_arg);
6275 /* Create local to hold the ref parameter to DangerousAddRef */
6276 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6278 /* set release = false; */
6279 mono_mb_emit_icon (mb, 0);
6280 mono_mb_emit_stloc (mb, dar_release_slot);
6282 /* safehandle.DangerousAddRef (ref release) */
6283 mono_mb_emit_ldarg (mb, argnum);
6284 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6285 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6287 /* Pull the handle field from SafeHandle */
6288 mono_mb_emit_ldarg (mb, argnum);
6289 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6290 mono_mb_emit_byte (mb, CEE_LDIND_I);
6291 mono_mb_emit_stloc (mb, conv_arg);
6296 case MARSHAL_ACTION_PUSH:
6298 mono_mb_emit_ldloc_addr (mb, conv_arg);
6300 mono_mb_emit_ldloc (mb, conv_arg);
6303 case MARSHAL_ACTION_CONV_OUT: {
6304 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6305 int dar_release_slot = conv_arg + 1;
6308 if (!sh_dangerous_release)
6309 init_safe_handle ();
6315 * My tests indicate that ref SafeHandles parameters are not actually
6316 * passed by ref, but instead a new Handle is created regardless of
6317 * whether a change happens in the unmanaged side.
6319 * Also, the Handle is created before calling into unmanaged code,
6320 * but we do not support that mechanism (getting to the original
6321 * handle) and it makes no difference where we create this
6323 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6325 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6328 /* refval = new SafeHandleDerived ()*/
6329 mono_mb_emit_ldarg (mb, argnum);
6330 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6331 mono_mb_emit_byte (mb, CEE_STIND_REF);
6333 /* refval.handle = returned_handle */
6334 mono_mb_emit_ldarg (mb, argnum);
6335 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6336 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6337 mono_mb_emit_ldloc (mb, conv_arg);
6338 mono_mb_emit_byte (mb, CEE_STIND_I);
6340 mono_mb_emit_ldloc (mb, dar_release_slot);
6341 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6342 mono_mb_emit_ldarg (mb, argnum);
6343 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6344 mono_mb_patch_branch (mb, label_next);
6349 case MARSHAL_ACTION_CONV_RESULT: {
6350 MonoMethod *ctor = NULL;
6351 int intptr_handle_slot;
6353 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6354 mono_mb_emit_byte (mb, CEE_POP);
6355 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
6359 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6361 mono_mb_emit_byte (mb, CEE_POP);
6362 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6365 /* Store the IntPtr results into a local */
6366 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6367 mono_mb_emit_stloc (mb, intptr_handle_slot);
6369 /* Create return value */
6370 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6371 mono_mb_emit_stloc (mb, 3);
6373 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6374 mono_mb_emit_ldloc (mb, 3);
6375 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6376 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6377 mono_mb_emit_byte (mb, CEE_STIND_I);
6381 case MARSHAL_ACTION_MANAGED_CONV_IN:
6382 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6385 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6386 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6389 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6390 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6393 printf ("Unhandled case for MarshalAction: %d\n", action);
6400 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6401 MonoMarshalSpec *spec, int conv_arg,
6402 MonoType **conv_arg_type, MarshalAction action)
6404 MonoMethodBuilder *mb = m->mb;
6407 case MARSHAL_ACTION_CONV_IN: {
6408 MonoType *intptr_type;
6410 intptr_type = &mono_defaults.int_class->byval_arg;
6411 conv_arg = mono_mb_add_local (mb, intptr_type);
6412 *conv_arg_type = intptr_type;
6415 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6416 mono_mb_emit_exception_marshal_directive (mb, msg);
6419 mono_mb_emit_ldarg_addr (mb, argnum);
6420 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6421 mono_mb_emit_byte (mb, CEE_ADD);
6422 mono_mb_emit_byte (mb, CEE_LDIND_I);
6423 mono_mb_emit_stloc (mb, conv_arg);
6427 case MARSHAL_ACTION_PUSH:
6428 mono_mb_emit_ldloc (mb, conv_arg);
6431 case MARSHAL_ACTION_CONV_OUT: {
6432 /* no resource release required */
6436 case MARSHAL_ACTION_CONV_RESULT: {
6437 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6438 mono_mb_emit_exception_marshal_directive (mb, msg);
6442 case MARSHAL_ACTION_MANAGED_CONV_IN:
6443 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6446 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6447 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6450 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6451 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6454 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6461 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6462 MonoMarshalSpec *spec,
6463 int conv_arg, MonoType **conv_arg_type,
6464 MarshalAction action)
6466 MonoMethodBuilder *mb = m->mb;
6467 MonoClass *klass = mono_class_from_mono_type (t);
6471 case MARSHAL_ACTION_CONV_IN:
6472 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6473 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6475 m->orig_conv_args [argnum] = 0;
6477 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6478 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6479 mono_mb_emit_exception_marshal_directive (mb, msg);
6483 if (klass->delegate) {
6485 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6486 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6487 mono_mb_emit_exception_marshal_directive (mb, msg);
6489 mono_mb_emit_byte (mb, CEE_LDNULL);
6490 mono_mb_emit_stloc (mb, conv_arg);
6492 mono_mb_emit_ldarg (mb, argnum);
6493 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6494 mono_mb_emit_stloc (mb, conv_arg);
6496 } else if (klass == mono_defaults.stringbuilder_class) {
6497 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6498 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6501 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6502 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6503 mono_mb_emit_exception_marshal_directive (mb, msg);
6508 mono_mb_emit_ldarg (mb, argnum);
6511 mono_mb_emit_icall (mb, conv_to_icall (conv));
6513 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6514 MonoException *exc = mono_get_exception_not_implemented (msg);
6515 g_warning ("%s", msg);
6517 mono_raise_exception (exc);
6520 mono_mb_emit_stloc (mb, conv_arg);
6521 } else if (klass->blittable) {
6522 mono_mb_emit_byte (mb, CEE_LDNULL);
6523 mono_mb_emit_stloc (mb, conv_arg);
6525 mono_mb_emit_ldarg (mb, argnum);
6526 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6528 mono_mb_emit_ldarg (mb, argnum);
6529 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6530 mono_mb_emit_stloc (mb, conv_arg);
6532 mono_mb_patch_branch (mb, pos);
6535 mono_mb_emit_byte (mb, CEE_LDNULL);
6536 mono_mb_emit_stloc (mb, conv_arg);
6539 /* we dont need any conversions for out parameters */
6540 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6543 mono_mb_emit_ldarg (mb, argnum);
6544 mono_mb_emit_byte (mb, CEE_LDIND_I);
6547 mono_mb_emit_ldarg (mb, argnum);
6548 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6549 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6552 /* store the address of the source into local variable 0 */
6553 mono_mb_emit_stloc (mb, 0);
6554 mono_mb_emit_ldloc (mb, 0);
6555 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6557 /* allocate space for the native struct and store the address */
6558 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6559 mono_mb_emit_byte (mb, CEE_PREFIX1);
6560 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6561 mono_mb_emit_stloc (mb, conv_arg);
6564 /* Need to store the original buffer so we can free it later */
6565 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6566 mono_mb_emit_ldloc (mb, conv_arg);
6567 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6570 /* set the src_ptr */
6571 mono_mb_emit_ldloc (mb, 0);
6572 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6573 mono_mb_emit_stloc (mb, 0);
6576 mono_mb_emit_ldloc (mb, conv_arg);
6577 mono_mb_emit_stloc (mb, 1);
6579 /* emit valuetype conversion code */
6580 emit_struct_conv (mb, klass, FALSE);
6582 mono_mb_patch_branch (mb, pos);
6586 case MARSHAL_ACTION_CONV_OUT:
6587 if (klass == mono_defaults.stringbuilder_class) {
6589 MonoMarshalNative encoding;
6590 MonoMarshalConv conv;
6592 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6593 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6595 g_assert (encoding != -1);
6598 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6602 mono_mb_emit_ldarg (mb, argnum);
6603 mono_mb_emit_ldloc (mb, conv_arg);
6606 case MONO_NATIVE_LPWSTR:
6607 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6609 case MONO_NATIVE_LPSTR:
6610 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6613 g_assert_not_reached ();
6616 mono_mb_emit_byte (mb, CEE_STIND_REF);
6618 mono_mb_emit_ldarg (mb, argnum);
6619 mono_mb_emit_ldloc (mb, conv_arg);
6621 mono_mb_emit_icall (mb, conv_to_icall (conv));
6625 mono_mb_emit_ldloc (mb, conv_arg);
6626 mono_mb_emit_icall (mb, mono_marshal_free);
6631 if (klass->delegate) {
6633 mono_mb_emit_ldarg (mb, argnum);
6634 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6635 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6636 mono_mb_emit_ldloc (mb, conv_arg);
6637 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6638 mono_mb_emit_byte (mb, CEE_STIND_REF);
6643 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6644 /* allocate a new object */
6645 mono_mb_emit_ldarg (mb, argnum);
6646 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6647 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6648 mono_mb_emit_byte (mb, CEE_STIND_REF);
6651 /* dst = *argument */
6652 mono_mb_emit_ldarg (mb, argnum);
6655 mono_mb_emit_byte (mb, CEE_LDIND_I);
6657 mono_mb_emit_stloc (mb, 1);
6659 mono_mb_emit_ldloc (mb, 1);
6660 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6662 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6663 mono_mb_emit_ldloc (mb, 1);
6664 mono_mb_emit_icon (mb, sizeof (MonoObject));
6665 mono_mb_emit_byte (mb, CEE_ADD);
6666 mono_mb_emit_stloc (mb, 1);
6668 /* src = tmp_locals [i] */
6669 mono_mb_emit_ldloc (mb, conv_arg);
6670 mono_mb_emit_stloc (mb, 0);
6672 /* emit valuetype conversion code */
6673 emit_struct_conv (mb, klass, TRUE);
6675 /* Free the structure returned by the native code */
6676 emit_struct_free (mb, klass, conv_arg);
6678 if (m->orig_conv_args [argnum]) {
6680 * If the native function changed the pointer, then free
6681 * the original structure plus the new pointer.
6683 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6684 mono_mb_emit_ldloc (mb, conv_arg);
6685 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6687 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6688 g_assert (m->orig_conv_args [argnum]);
6690 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6693 mono_mb_emit_ldloc (mb, conv_arg);
6694 mono_mb_emit_icall (mb, mono_marshal_free);
6696 mono_mb_patch_branch (mb, pos2);
6700 /* Free the original structure passed to native code */
6701 emit_struct_free (mb, klass, conv_arg);
6703 mono_mb_patch_branch (mb, pos);
6706 case MARSHAL_ACTION_PUSH:
6708 mono_mb_emit_ldloc_addr (mb, conv_arg);
6710 mono_mb_emit_ldloc (mb, conv_arg);
6713 case MARSHAL_ACTION_CONV_RESULT:
6714 if (klass->delegate) {
6715 g_assert (!t->byref);
6716 mono_mb_emit_stloc (mb, 0);
6717 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6718 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6719 mono_mb_emit_ldloc (mb, 0);
6720 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6721 mono_mb_emit_stloc (mb, 3);
6724 mono_mb_emit_stloc (mb, 0);
6726 /* Make a copy since emit_conv modifies local 0 */
6727 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6728 mono_mb_emit_ldloc (mb, 0);
6729 mono_mb_emit_stloc (mb, loc);
6731 mono_mb_emit_byte (mb, CEE_LDNULL);
6732 mono_mb_emit_stloc (mb, 3);
6734 mono_mb_emit_ldloc (mb, 0);
6735 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6737 /* allocate result object */
6739 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6740 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6741 mono_mb_emit_stloc (mb, 3);
6745 mono_mb_emit_ldloc (mb, 3);
6746 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6747 mono_mb_emit_stloc (mb, 1);
6749 /* emit conversion code */
6750 emit_struct_conv (mb, klass, TRUE);
6752 emit_struct_free (mb, klass, loc);
6754 /* Free the pointer allocated by unmanaged code */
6755 mono_mb_emit_ldloc (mb, loc);
6756 mono_mb_emit_icall (mb, mono_marshal_free);
6757 mono_mb_patch_branch (mb, pos);
6761 case MARSHAL_ACTION_MANAGED_CONV_IN:
6762 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6764 if (klass->delegate) {
6765 g_assert (!t->byref);
6766 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6767 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6768 mono_mb_emit_ldarg (mb, argnum);
6769 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6770 mono_mb_emit_stloc (mb, conv_arg);
6774 if (klass == mono_defaults.stringbuilder_class) {
6775 MonoMarshalNative encoding;
6777 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6780 g_assert (encoding == MONO_NATIVE_LPSTR);
6782 g_assert (!t->byref);
6783 g_assert (encoding != -1);
6785 mono_mb_emit_ldarg (mb, argnum);
6786 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6787 mono_mb_emit_stloc (mb, conv_arg);
6791 /* The class can not have an automatic layout */
6792 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6793 mono_mb_emit_auto_layout_exception (mb, klass);
6797 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6798 mono_mb_emit_byte (mb, CEE_LDNULL);
6799 mono_mb_emit_stloc (mb, conv_arg);
6804 mono_mb_emit_ldarg (mb, argnum);
6808 /* Check for NULL and raise an exception */
6809 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6811 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6813 mono_mb_patch_branch (mb, pos2);
6814 mono_mb_emit_ldarg (mb, argnum);
6815 mono_mb_emit_byte (mb, CEE_LDIND_I);
6818 mono_mb_emit_stloc (mb, 0);
6820 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6821 mono_mb_emit_stloc (mb, conv_arg);
6823 mono_mb_emit_ldloc (mb, 0);
6824 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6826 /* Create and set dst */
6827 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6828 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6829 mono_mb_emit_stloc (mb, conv_arg);
6830 mono_mb_emit_ldloc (mb, conv_arg);
6831 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6832 mono_mb_emit_stloc (mb, 1);
6834 /* emit valuetype conversion code */
6835 emit_struct_conv (mb, klass, TRUE);
6837 mono_mb_patch_branch (mb, pos);
6840 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6842 /* Check for null */
6843 mono_mb_emit_ldloc (mb, conv_arg);
6844 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6845 mono_mb_emit_ldarg (mb, argnum);
6846 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6847 mono_mb_emit_byte (mb, CEE_STIND_REF);
6848 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6850 mono_mb_patch_branch (mb, pos);
6853 mono_mb_emit_ldloc (mb, conv_arg);
6854 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6855 mono_mb_emit_stloc (mb, 0);
6857 /* Allocate and set dest */
6858 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6859 mono_mb_emit_byte (mb, CEE_CONV_I);
6860 mono_mb_emit_icall (mb, mono_marshal_alloc);
6861 mono_mb_emit_stloc (mb, 1);
6863 /* Update argument pointer */
6864 mono_mb_emit_ldarg (mb, argnum);
6865 mono_mb_emit_ldloc (mb, 1);
6866 mono_mb_emit_byte (mb, CEE_STIND_I);
6868 /* emit valuetype conversion code */
6869 emit_struct_conv (mb, klass, FALSE);
6871 mono_mb_patch_branch (mb, pos2);
6873 /* byval [Out] marshalling */
6875 /* FIXME: Handle null */
6878 mono_mb_emit_ldloc (mb, conv_arg);
6879 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6880 mono_mb_emit_stloc (mb, 0);
6883 mono_mb_emit_ldarg (mb, argnum);
6884 mono_mb_emit_stloc (mb, 1);
6886 /* emit valuetype conversion code */
6887 emit_struct_conv (mb, klass, FALSE);
6891 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6892 if (klass->delegate) {
6893 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6894 mono_mb_emit_stloc (mb, 3);
6898 /* The class can not have an automatic layout */
6899 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6900 mono_mb_emit_auto_layout_exception (mb, klass);
6904 mono_mb_emit_stloc (mb, 0);
6905 /* Check for null */
6906 mono_mb_emit_ldloc (mb, 0);
6907 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6908 mono_mb_emit_byte (mb, CEE_LDNULL);
6909 mono_mb_emit_stloc (mb, 3);
6910 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6912 mono_mb_patch_branch (mb, pos);
6915 mono_mb_emit_ldloc (mb, 0);
6916 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6917 mono_mb_emit_stloc (mb, 0);
6919 /* Allocate and set dest */
6920 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6921 mono_mb_emit_byte (mb, CEE_CONV_I);
6922 mono_mb_emit_icall (mb, mono_marshal_alloc);
6923 mono_mb_emit_byte (mb, CEE_DUP);
6924 mono_mb_emit_stloc (mb, 1);
6925 mono_mb_emit_stloc (mb, 3);
6927 emit_struct_conv (mb, klass, FALSE);
6929 mono_mb_patch_branch (mb, pos2);
6933 g_assert_not_reached ();
6940 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6941 MonoMarshalSpec *spec,
6942 int conv_arg, MonoType **conv_arg_type,
6943 MarshalAction action)
6945 MonoMethodBuilder *mb = m->mb;
6946 static MonoMethod *get_object_for_native_variant = NULL;
6947 static MonoMethod *get_native_variant_for_object = NULL;
6949 mono_init_com_types ();
6951 if (!get_object_for_native_variant)
6952 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6953 g_assert (get_object_for_native_variant);
6955 if (!get_native_variant_for_object)
6956 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6957 g_assert (get_native_variant_for_object);
6960 case MARSHAL_ACTION_CONV_IN: {
6961 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6964 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6966 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6968 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6971 mono_mb_emit_ldarg (mb, argnum);
6973 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6974 mono_mb_emit_ldloc_addr (mb, conv_arg);
6975 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6979 case MARSHAL_ACTION_CONV_OUT: {
6980 static MonoMethod *variant_clear = NULL;
6983 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6984 g_assert (variant_clear);
6987 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6988 mono_mb_emit_ldarg (mb, argnum);
6989 mono_mb_emit_ldloc_addr (mb, conv_arg);
6990 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6991 mono_mb_emit_byte (mb, CEE_STIND_REF);
6994 mono_mb_emit_ldloc_addr (mb, conv_arg);
6995 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6999 case MARSHAL_ACTION_PUSH:
7001 mono_mb_emit_ldloc_addr (mb, conv_arg);
7003 mono_mb_emit_ldloc (mb, conv_arg);
7006 case MARSHAL_ACTION_CONV_RESULT: {
7007 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7008 mono_mb_emit_exception_marshal_directive (mb, msg);
7012 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7013 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7016 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7018 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7020 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7024 mono_mb_emit_ldarg (mb, argnum);
7026 mono_mb_emit_ldarg_addr (mb, argnum);
7027 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7028 mono_mb_emit_stloc (mb, conv_arg);
7032 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7033 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7034 mono_mb_emit_ldloc (mb, conv_arg);
7035 mono_mb_emit_ldarg (mb, argnum);
7036 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7041 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7042 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7043 mono_mb_emit_exception_marshal_directive (mb, msg);
7048 g_assert_not_reached ();
7055 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
7057 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
7058 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
7060 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
7062 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7073 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7074 MonoMarshalSpec *spec,
7075 int conv_arg, MonoType **conv_arg_type,
7076 MarshalAction action)
7078 MonoMethodBuilder *mb = m->mb;
7079 MonoClass *klass = mono_class_from_mono_type (t);
7080 gboolean need_convert, need_free;
7081 MonoMarshalNative encoding;
7083 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7086 case MARSHAL_ACTION_CONV_IN:
7087 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7088 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7090 if (klass->element_class->blittable) {
7091 mono_mb_emit_ldarg (mb, argnum);
7093 mono_mb_emit_byte (mb, CEE_LDIND_I);
7094 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7095 mono_mb_emit_stloc (mb, conv_arg);
7098 guint32 label1, label2, label3;
7099 int index_var, src_var, dest_ptr, esize;
7100 MonoMarshalConv conv;
7101 gboolean is_string = FALSE;
7103 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7105 eklass = klass->element_class;
7107 if (eklass == mono_defaults.string_class) {
7109 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7111 else if (eklass == mono_defaults.stringbuilder_class) {
7113 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7118 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7119 mono_mb_emit_ldarg (mb, argnum);
7121 mono_mb_emit_byte (mb, CEE_LDIND_I);
7122 mono_mb_emit_stloc (mb, src_var);
7125 mono_mb_emit_ldloc (mb, src_var);
7126 mono_mb_emit_stloc (mb, conv_arg);
7127 mono_mb_emit_ldloc (mb, src_var);
7128 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7132 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7133 MonoException *exc = mono_get_exception_not_implemented (msg);
7134 g_warning ("%s", msg);
7136 mono_raise_exception (exc);
7141 esize = sizeof (gpointer);
7142 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7143 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7145 esize = mono_class_native_size (eklass, NULL);
7147 /* allocate space for the native struct and store the address */
7148 mono_mb_emit_icon (mb, esize);
7149 mono_mb_emit_ldloc (mb, src_var);
7150 mono_mb_emit_byte (mb, CEE_LDLEN);
7152 if (eklass == mono_defaults.string_class) {
7153 /* Make the array bigger for the terminating null */
7154 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7155 mono_mb_emit_byte (mb, CEE_ADD);
7157 mono_mb_emit_byte (mb, CEE_MUL);
7158 mono_mb_emit_byte (mb, CEE_PREFIX1);
7159 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7160 mono_mb_emit_stloc (mb, conv_arg);
7162 mono_mb_emit_ldloc (mb, conv_arg);
7163 mono_mb_emit_stloc (mb, dest_ptr);
7165 /* Emit marshalling loop */
7166 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7167 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7168 mono_mb_emit_stloc (mb, index_var);
7169 label2 = mono_mb_get_label (mb);
7170 mono_mb_emit_ldloc (mb, index_var);
7171 mono_mb_emit_ldloc (mb, src_var);
7172 mono_mb_emit_byte (mb, CEE_LDLEN);
7173 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7175 /* Emit marshalling code */
7178 mono_mb_emit_ldloc (mb, dest_ptr);
7179 mono_mb_emit_ldloc (mb, src_var);
7180 mono_mb_emit_ldloc (mb, index_var);
7181 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7182 mono_mb_emit_icall (mb, conv_to_icall (conv));
7183 mono_mb_emit_byte (mb, CEE_STIND_I);
7185 /* set the src_ptr */
7186 mono_mb_emit_ldloc (mb, src_var);
7187 mono_mb_emit_ldloc (mb, index_var);
7188 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7189 mono_mb_emit_stloc (mb, 0);
7192 mono_mb_emit_ldloc (mb, dest_ptr);
7193 mono_mb_emit_stloc (mb, 1);
7195 /* emit valuetype conversion code */
7196 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7199 mono_mb_emit_add_to_local (mb, index_var, 1);
7200 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7202 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7204 mono_mb_patch_branch (mb, label3);
7206 if (eklass == mono_defaults.string_class) {
7207 /* Null terminate */
7208 mono_mb_emit_ldloc (mb, dest_ptr);
7209 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7210 mono_mb_emit_byte (mb, CEE_STIND_REF);
7213 mono_mb_patch_branch (mb, label1);
7218 case MARSHAL_ACTION_CONV_OUT:
7219 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7220 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);
7221 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7224 if (need_convert || need_free) {
7225 /* FIXME: Optimize blittable case */
7227 guint32 label1, label2, label3;
7228 int index_var, src_ptr, loc, esize;
7230 eklass = klass->element_class;
7231 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7232 esize = sizeof (gpointer);
7233 else if (eklass == mono_defaults.char_class)
7234 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7236 esize = mono_class_native_size (eklass, NULL);
7237 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7238 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7241 mono_mb_emit_ldarg (mb, argnum);
7243 mono_mb_emit_byte (mb, CEE_LDIND_I);
7244 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7246 mono_mb_emit_ldloc (mb, conv_arg);
7247 mono_mb_emit_stloc (mb, src_ptr);
7249 /* Emit marshalling loop */
7250 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7251 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7252 mono_mb_emit_stloc (mb, index_var);
7253 label2 = mono_mb_get_label (mb);
7254 mono_mb_emit_ldloc (mb, index_var);
7255 mono_mb_emit_ldarg (mb, argnum);
7257 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7258 mono_mb_emit_byte (mb, CEE_LDLEN);
7259 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7261 /* Emit marshalling code */
7263 if (eklass == mono_defaults.stringbuilder_class) {
7264 gboolean need_free2;
7265 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7267 g_assert (conv != -1);
7270 mono_mb_emit_ldarg (mb, argnum);
7272 mono_mb_emit_byte (mb, CEE_LDIND_I);
7273 mono_mb_emit_ldloc (mb, index_var);
7274 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7277 mono_mb_emit_ldloc (mb, src_ptr);
7278 mono_mb_emit_byte (mb, CEE_LDIND_I);
7280 mono_mb_emit_icall (mb, conv_to_icall (conv));
7284 mono_mb_emit_ldloc (mb, src_ptr);
7285 mono_mb_emit_byte (mb, CEE_LDIND_I);
7287 mono_mb_emit_icall (mb, mono_marshal_free);
7290 else if (eklass == mono_defaults.string_class) {
7293 mono_mb_emit_ldloc (mb, src_ptr);
7294 mono_mb_emit_byte (mb, CEE_LDIND_I);
7296 mono_mb_emit_icall (mb, mono_marshal_free);
7301 /* set the src_ptr */
7302 mono_mb_emit_ldloc (mb, src_ptr);
7303 mono_mb_emit_stloc (mb, 0);
7306 mono_mb_emit_ldarg (mb, argnum);
7308 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7309 mono_mb_emit_ldloc (mb, index_var);
7310 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7311 mono_mb_emit_stloc (mb, 1);
7313 /* emit valuetype conversion code */
7314 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7318 mono_mb_emit_ldloc (mb, src_ptr);
7319 mono_mb_emit_stloc (mb, loc);
7320 mono_mb_emit_ldloc (mb, loc);
7322 emit_struct_free (mb, eklass, loc);
7326 mono_mb_emit_add_to_local (mb, index_var, 1);
7327 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7329 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7331 mono_mb_patch_branch (mb, label1);
7332 mono_mb_patch_branch (mb, label3);
7335 if (klass->element_class->blittable) {
7336 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7338 mono_mb_emit_ldarg (mb, argnum);
7339 mono_mb_emit_ldloc (mb, conv_arg);
7340 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7345 case MARSHAL_ACTION_PUSH:
7347 mono_mb_emit_ldloc_addr (mb, conv_arg);
7349 mono_mb_emit_ldloc (mb, conv_arg);
7352 case MARSHAL_ACTION_CONV_RESULT:
7353 /* fixme: we need conversions here */
7354 mono_mb_emit_stloc (mb, 3);
7357 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7359 guint32 label1, label2, label3;
7360 int index_var, src_ptr, loc, esize, param_num, num_elem;
7361 MonoMarshalConv conv;
7362 gboolean is_string = FALSE;
7364 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7365 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7368 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7369 mono_mb_emit_exception_marshal_directive (mb, msg);
7373 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7374 mono_mb_emit_exception_marshal_directive (mb, msg);
7377 if (spec->native != MONO_NATIVE_LPARRAY) {
7378 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7379 mono_mb_emit_exception_marshal_directive (mb, msg);
7383 /* FIXME: t is from the method which is wrapped, not the delegate type */
7384 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7386 param_num = spec->data.array_data.param_num;
7387 num_elem = spec->data.array_data.num_elem;
7388 if (spec->data.array_data.elem_mult == 0)
7389 /* param_num is not specified */
7392 if (param_num == -1) {
7393 if (num_elem <= 0) {
7394 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7395 mono_mb_emit_exception_marshal_directive (mb, msg);
7400 /* FIXME: Optimize blittable case */
7402 eklass = klass->element_class;
7403 if (eklass == mono_defaults.string_class) {
7405 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7407 else if (eklass == mono_defaults.stringbuilder_class) {
7409 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7414 mono_marshal_load_type_info (eklass);
7417 esize = sizeof (gpointer);
7419 esize = mono_class_native_size (eklass, NULL);
7420 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7421 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7423 mono_mb_emit_byte (mb, CEE_LDNULL);
7424 mono_mb_emit_stloc (mb, conv_arg);
7426 /* Check param index */
7427 if (param_num != -1) {
7428 if (param_num >= m->sig->param_count) {
7429 char *msg = g_strdup ("Array size control parameter index is out of range.");
7430 mono_mb_emit_exception_marshal_directive (mb, msg);
7433 switch (m->sig->params [param_num]->type) {
7446 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7447 mono_mb_emit_exception_marshal_directive (mb, msg);
7454 mono_mb_emit_ldarg (mb, argnum);
7455 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7457 mono_mb_emit_ldarg (mb, argnum);
7458 mono_mb_emit_stloc (mb, src_ptr);
7460 /* Create managed array */
7462 * The LPArray marshalling spec says that sometimes param_num starts
7463 * from 1, sometimes it starts from 0. But MS seems to allways start
7467 if (param_num == -1) {
7468 mono_mb_emit_icon (mb, num_elem);
7470 mono_mb_emit_ldarg (mb, param_num);
7472 mono_mb_emit_icon (mb, num_elem);
7473 mono_mb_emit_byte (mb, CEE_ADD);
7475 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7478 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7479 mono_mb_emit_stloc (mb, conv_arg);
7481 if (eklass->blittable) {
7482 mono_mb_emit_ldloc (mb, conv_arg);
7483 mono_mb_emit_byte (mb, CEE_CONV_I);
7484 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7485 mono_mb_emit_byte (mb, CEE_ADD);
7486 mono_mb_emit_ldarg (mb, argnum);
7487 mono_mb_emit_ldloc (mb, conv_arg);
7488 mono_mb_emit_byte (mb, CEE_LDLEN);
7489 mono_mb_emit_icon (mb, esize);
7490 mono_mb_emit_byte (mb, CEE_MUL);
7491 mono_mb_emit_byte (mb, CEE_PREFIX1);
7492 mono_mb_emit_byte (mb, CEE_CPBLK);
7496 /* Emit marshalling loop */
7497 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7498 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7499 mono_mb_emit_stloc (mb, index_var);
7500 label2 = mono_mb_get_label (mb);
7501 mono_mb_emit_ldloc (mb, index_var);
7502 mono_mb_emit_ldloc (mb, conv_arg);
7503 mono_mb_emit_byte (mb, CEE_LDLEN);
7504 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7506 /* Emit marshalling code */
7508 g_assert (conv != -1);
7510 mono_mb_emit_ldloc (mb, conv_arg);
7511 mono_mb_emit_ldloc (mb, index_var);
7513 mono_mb_emit_ldloc (mb, src_ptr);
7514 mono_mb_emit_byte (mb, CEE_LDIND_I);
7516 mono_mb_emit_icall (mb, conv_to_icall (conv));
7517 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7520 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7521 mono_mb_emit_exception_marshal_directive (mb, msg);
7525 mono_mb_emit_add_to_local (mb, index_var, 1);
7526 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7528 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7530 mono_mb_patch_branch (mb, label1);
7531 mono_mb_patch_branch (mb, label3);
7535 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7537 guint32 label1, label2, label3;
7538 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7539 MonoMarshalConv conv;
7540 gboolean is_string = FALSE;
7543 /* Already handled in CONV_IN */
7546 /* These are already checked in CONV_IN */
7547 g_assert (!t->byref);
7548 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7549 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7551 param_num = spec->data.array_data.param_num;
7552 num_elem = spec->data.array_data.num_elem;
7554 if (spec->data.array_data.elem_mult == 0)
7555 /* param_num is not specified */
7558 if (param_num == -1) {
7559 if (num_elem <= 0) {
7560 g_assert_not_reached ();
7564 /* FIXME: Optimize blittable case */
7566 eklass = klass->element_class;
7567 if (eklass == mono_defaults.string_class) {
7569 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7571 else if (eklass == mono_defaults.stringbuilder_class) {
7573 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7578 mono_marshal_load_type_info (eklass);
7581 esize = sizeof (gpointer);
7583 esize = mono_class_native_size (eklass, NULL);
7585 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7586 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7589 mono_mb_emit_ldloc (mb, conv_arg);
7590 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7592 mono_mb_emit_ldarg (mb, argnum);
7593 mono_mb_emit_stloc (mb, dest_ptr);
7595 if (eklass->blittable) {
7597 mono_mb_emit_ldarg (mb, argnum);
7599 mono_mb_emit_ldloc (mb, conv_arg);
7600 mono_mb_emit_byte (mb, CEE_CONV_I);
7601 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7602 mono_mb_emit_byte (mb, CEE_ADD);
7604 mono_mb_emit_ldloc (mb, conv_arg);
7605 mono_mb_emit_byte (mb, CEE_LDLEN);
7606 mono_mb_emit_icon (mb, esize);
7607 mono_mb_emit_byte (mb, CEE_MUL);
7608 mono_mb_emit_byte (mb, CEE_PREFIX1);
7609 mono_mb_emit_byte (mb, CEE_CPBLK);
7613 /* Emit marshalling loop */
7614 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7615 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7616 mono_mb_emit_stloc (mb, index_var);
7617 label2 = mono_mb_get_label (mb);
7618 mono_mb_emit_ldloc (mb, index_var);
7619 mono_mb_emit_ldloc (mb, conv_arg);
7620 mono_mb_emit_byte (mb, CEE_LDLEN);
7621 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7623 /* Emit marshalling code */
7625 g_assert (conv != -1);
7628 mono_mb_emit_ldloc (mb, dest_ptr);
7631 mono_mb_emit_ldloc (mb, conv_arg);
7632 mono_mb_emit_ldloc (mb, index_var);
7634 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7636 mono_mb_emit_icall (mb, conv_to_icall (conv));
7637 mono_mb_emit_byte (mb, CEE_STIND_I);
7640 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7641 mono_mb_emit_exception_marshal_directive (mb, msg);
7645 mono_mb_emit_add_to_local (mb, index_var, 1);
7646 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7648 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7650 mono_mb_patch_branch (mb, label1);
7651 mono_mb_patch_branch (mb, label3);
7655 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7657 guint32 label1, label2, label3;
7658 int index_var, src, dest, esize;
7659 MonoMarshalConv conv = -1;
7660 gboolean is_string = FALSE;
7662 g_assert (!t->byref);
7664 eklass = klass->element_class;
7666 mono_marshal_load_type_info (eklass);
7668 if (eklass == mono_defaults.string_class) {
7670 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7673 g_assert_not_reached ();
7677 esize = sizeof (gpointer);
7678 else if (eklass == mono_defaults.char_class)
7679 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7681 esize = mono_class_native_size (eklass, NULL);
7683 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7684 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7686 mono_mb_emit_stloc (mb, src);
7687 mono_mb_emit_ldloc (mb, src);
7688 mono_mb_emit_stloc (mb, 3);
7690 /* Check for null */
7691 mono_mb_emit_ldloc (mb, src);
7692 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7694 /* Allocate native array */
7695 mono_mb_emit_icon (mb, esize);
7696 mono_mb_emit_ldloc (mb, src);
7697 mono_mb_emit_byte (mb, CEE_LDLEN);
7699 if (eklass == mono_defaults.string_class) {
7700 /* Make the array bigger for the terminating null */
7701 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7702 mono_mb_emit_byte (mb, CEE_ADD);
7704 mono_mb_emit_byte (mb, CEE_MUL);
7705 mono_mb_emit_icall (mb, mono_marshal_alloc);
7706 mono_mb_emit_stloc (mb, dest);
7707 mono_mb_emit_ldloc (mb, dest);
7708 mono_mb_emit_stloc (mb, 3);
7710 /* Emit marshalling loop */
7711 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7712 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7713 mono_mb_emit_stloc (mb, index_var);
7714 label2 = mono_mb_get_label (mb);
7715 mono_mb_emit_ldloc (mb, index_var);
7716 mono_mb_emit_ldloc (mb, src);
7717 mono_mb_emit_byte (mb, CEE_LDLEN);
7718 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7720 /* Emit marshalling code */
7722 g_assert (conv != -1);
7725 mono_mb_emit_ldloc (mb, dest);
7728 mono_mb_emit_ldloc (mb, src);
7729 mono_mb_emit_ldloc (mb, index_var);
7731 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7733 mono_mb_emit_icall (mb, conv_to_icall (conv));
7734 mono_mb_emit_byte (mb, CEE_STIND_I);
7737 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7738 mono_mb_emit_exception_marshal_directive (mb, msg);
7742 mono_mb_emit_add_to_local (mb, index_var, 1);
7743 mono_mb_emit_add_to_local (mb, dest, esize);
7745 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7747 mono_mb_patch_branch (mb, label3);
7748 mono_mb_patch_branch (mb, label1);
7752 g_assert_not_reached ();
7759 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7760 MonoMarshalSpec *spec,
7761 int conv_arg, MonoType **conv_arg_type,
7762 MarshalAction action)
7764 MonoMethodBuilder *mb = m->mb;
7767 case MARSHAL_ACTION_CONV_IN: {
7768 MonoType *local_type;
7770 guint8 ldc_op = CEE_LDC_I4_1;
7773 local_type = &mono_defaults.int32_class->byval_arg;
7775 switch (spec->native) {
7776 case MONO_NATIVE_I1:
7777 case MONO_NATIVE_U1:
7778 local_type = &mono_defaults.byte_class->byval_arg;
7780 case MONO_NATIVE_VARIANTBOOL:
7781 local_type = &mono_defaults.int16_class->byval_arg;
7782 ldc_op = CEE_LDC_I4_M1;
7784 case MONO_NATIVE_BOOLEAN:
7785 local_type = &mono_defaults.int32_class->byval_arg;
7788 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7789 local_type = &mono_defaults.int32_class->byval_arg;
7794 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7796 *conv_arg_type = local_type;
7797 conv_arg = mono_mb_add_local (mb, local_type);
7799 mono_mb_emit_ldarg (mb, argnum);
7801 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7802 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7803 mono_mb_emit_byte (mb, ldc_op);
7804 mono_mb_emit_stloc (mb, conv_arg);
7805 mono_mb_patch_branch (mb, label_false);
7810 case MARSHAL_ACTION_CONV_OUT:
7812 int label_false, label_end;
7816 mono_mb_emit_ldarg (mb, argnum);
7817 mono_mb_emit_ldloc (mb, conv_arg);
7819 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7820 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7822 label_end = mono_mb_emit_branch (mb, CEE_BR);
7823 mono_mb_patch_branch (mb, label_false);
7824 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7825 mono_mb_patch_branch (mb, label_end);
7827 mono_mb_emit_byte (mb, CEE_STIND_I1);
7831 case MARSHAL_ACTION_PUSH:
7833 mono_mb_emit_ldloc_addr (mb, conv_arg);
7835 mono_mb_emit_ldloc (mb, conv_arg);
7837 mono_mb_emit_ldarg (mb, argnum);
7840 case MARSHAL_ACTION_CONV_RESULT:
7841 /* maybe we need to make sure that it fits within 8 bits */
7842 mono_mb_emit_stloc (mb, 3);
7845 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7846 MonoClass* conv_arg_class = mono_defaults.int32_class;
7847 guint8 ldop = CEE_LDIND_I4;
7848 int label_null, label_false;
7850 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7853 switch (spec->native) {
7854 case MONO_NATIVE_I1:
7855 case MONO_NATIVE_U1:
7856 conv_arg_class = mono_defaults.byte_class;
7857 ldop = CEE_LDIND_I1;
7859 case MONO_NATIVE_VARIANTBOOL:
7860 conv_arg_class = mono_defaults.int16_class;
7861 ldop = CEE_LDIND_I2;
7863 case MONO_NATIVE_BOOLEAN:
7866 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7871 *conv_arg_type = &conv_arg_class->this_arg;
7873 *conv_arg_type = &conv_arg_class->byval_arg;
7876 mono_mb_emit_ldarg (mb, argnum);
7880 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7881 mono_mb_emit_ldarg (mb, argnum);
7882 mono_mb_emit_byte (mb, ldop);
7886 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7887 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7888 mono_mb_emit_stloc (mb, conv_arg);
7889 mono_mb_patch_branch (mb, label_false);
7892 mono_mb_patch_branch (mb, label_null);
7896 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7897 guint8 stop = CEE_STIND_I4;
7898 guint8 ldc_op = CEE_LDC_I4_1;
7899 int label_null,label_false, label_end;;
7904 switch (spec->native) {
7905 case MONO_NATIVE_I1:
7906 case MONO_NATIVE_U1:
7907 stop = CEE_STIND_I1;
7909 case MONO_NATIVE_VARIANTBOOL:
7910 stop = CEE_STIND_I2;
7911 ldc_op = CEE_LDC_I4_M1;
7919 mono_mb_emit_ldarg (mb, argnum);
7920 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7922 mono_mb_emit_ldarg (mb, argnum);
7923 mono_mb_emit_ldloc (mb, conv_arg);
7925 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7926 mono_mb_emit_byte (mb, ldc_op);
7927 label_end = mono_mb_emit_branch (mb, CEE_BR);
7929 mono_mb_patch_branch (mb, label_false);
7930 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7931 mono_mb_patch_branch (mb, label_end);
7933 mono_mb_emit_byte (mb, stop);
7934 mono_mb_patch_branch (mb, label_null);
7939 g_assert_not_reached ();
7946 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7947 MonoMarshalSpec *spec, int conv_arg,
7948 MonoType **conv_arg_type, MarshalAction action)
7950 MonoMethodBuilder *mb = m->mb;
7953 case MARSHAL_ACTION_CONV_IN:
7954 /* MS seems to allow this in some cases, ie. bxc #158 */
7956 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7957 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7958 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7963 case MARSHAL_ACTION_PUSH:
7964 mono_mb_emit_ldarg (mb, argnum);
7967 case MARSHAL_ACTION_CONV_RESULT:
7968 /* no conversions necessary */
7969 mono_mb_emit_stloc (mb, 3);
7980 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7981 MonoMarshalSpec *spec, int conv_arg,
7982 MonoType **conv_arg_type, MarshalAction action)
7984 MonoMethodBuilder *mb = m->mb;
7987 case MARSHAL_ACTION_PUSH:
7988 /* fixme: dont know how to marshal that. We cant simply
7989 * convert it to a one byte UTF8 character, because an
7990 * unicode character may need more that one byte in UTF8 */
7991 mono_mb_emit_ldarg (mb, argnum);
7994 case MARSHAL_ACTION_CONV_RESULT:
7995 /* fixme: we need conversions here */
7996 mono_mb_emit_stloc (mb, 3);
8007 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8008 MonoMarshalSpec *spec, int conv_arg,
8009 MonoType **conv_arg_type, MarshalAction action)
8011 MonoMethodBuilder *mb = m->mb;
8014 case MARSHAL_ACTION_PUSH:
8015 mono_mb_emit_ldarg (mb, argnum);
8018 case MARSHAL_ACTION_CONV_RESULT:
8019 /* no conversions necessary */
8020 mono_mb_emit_stloc (mb, 3);
8031 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8032 MonoMarshalSpec *spec, int conv_arg,
8033 MonoType **conv_arg_type, MarshalAction action)
8035 /* Ensure that we have marshalling info for this param */
8036 mono_marshal_load_type_info (mono_class_from_mono_type (t));
8039 /* Not JIT support, no need to generate correct IL */
8042 if (spec && spec->native == MONO_NATIVE_CUSTOM)
8043 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8045 if (spec && spec->native == MONO_NATIVE_ASANY)
8046 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8049 case MONO_TYPE_VALUETYPE:
8050 if (t->data.klass == mono_defaults.handleref_class)
8051 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8053 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8054 case MONO_TYPE_STRING:
8055 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8056 case MONO_TYPE_CLASS:
8057 case MONO_TYPE_OBJECT:
8058 if (spec && spec->native == MONO_NATIVE_STRUCT)
8059 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8062 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8063 spec->native == MONO_NATIVE_IDISPATCH ||
8064 spec->native == MONO_NATIVE_INTERFACE))
8065 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8066 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
8067 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
8068 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
8069 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8072 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
8073 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8074 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8076 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8077 case MONO_TYPE_ARRAY:
8078 case MONO_TYPE_SZARRAY:
8079 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8080 case MONO_TYPE_BOOLEAN:
8081 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8083 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8084 case MONO_TYPE_CHAR:
8085 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8098 case MONO_TYPE_FNPTR:
8099 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8100 case MONO_TYPE_GENERICINST:
8101 if (mono_type_generic_inst_is_valuetype (t))
8102 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8104 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8112 * mono_marshal_emit_native_wrapper:
8113 * @image: the image to use for looking up custom marshallers
8114 * @sig: The signature of the native function
8115 * @piinfo: Marshalling information
8116 * @mspecs: Marshalling information
8117 * @aot: whenever the created method will be compiled by the AOT compiler
8118 * @method: if non-NULL, the pinvoke method to call
8119 * @check_exceptions: Whenever to check for pending exceptions after the native call
8121 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8124 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8126 EmitMarshalContext m;
8127 MonoMethodSignature *csig;
8129 int i, argnum, *tmp_locals;
8131 static MonoMethodSignature *get_last_error_sig = NULL;
8136 /* we copy the signature, so that we can set pinvoke to 0 */
8137 csig = signature_dup (mb->method->klass->image, sig);
8142 /* we allocate local for use with emit_struct_conv() */
8143 /* allocate local 0 (pointer) src_ptr */
8144 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8145 /* allocate local 1 (pointer) dst_ptr */
8146 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8147 /* allocate local 2 (boolean) delete_old */
8148 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8150 /* delete_old = FALSE */
8151 mono_mb_emit_icon (mb, 0);
8152 mono_mb_emit_stloc (mb, 2);
8154 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8155 /* allocate local 3 to store the return value */
8156 mono_mb_add_local (mb, sig->ret);
8159 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8160 /* Return type custom marshaling */
8162 * Since we can't determine the return type of the unmanaged function,
8163 * we assume it returns a pointer, and pass that pointer to
8164 * MarshalNativeToManaged.
8166 csig->ret = &mono_defaults.int_class->byval_arg;
8169 /* we first do all conversions */
8170 tmp_locals = alloca (sizeof (int) * sig->param_count);
8171 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8173 for (i = 0; i < sig->param_count; i ++) {
8174 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8177 /* push all arguments */
8180 mono_mb_emit_byte (mb, CEE_LDARG_0);
8182 for (i = 0; i < sig->param_count; i++) {
8183 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8186 /* call the native method */
8187 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8189 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8191 g_assert_not_reached ();
8196 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8197 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8198 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8199 mono_mb_emit_calli (mb, csig);
8201 mono_mb_emit_native_call (mb, csig, func);
8205 /* Set LastError if needed */
8206 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8207 if (!get_last_error_sig) {
8208 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8209 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8210 get_last_error_sig->pinvoke = 1;
8215 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8216 * clobber its value.
8218 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8219 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8221 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8225 /* convert the result */
8226 if (!sig->ret->byref) {
8227 MonoMarshalSpec *spec = mspecs [0];
8228 type = sig->ret->type;
8230 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8231 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8236 case MONO_TYPE_VOID:
8238 case MONO_TYPE_VALUETYPE:
8239 klass = sig->ret->data.klass;
8240 if (klass->enumtype) {
8241 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8244 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8258 case MONO_TYPE_FNPTR:
8259 case MONO_TYPE_STRING:
8260 case MONO_TYPE_CLASS:
8261 case MONO_TYPE_OBJECT:
8262 case MONO_TYPE_BOOLEAN:
8263 case MONO_TYPE_ARRAY:
8264 case MONO_TYPE_SZARRAY:
8265 case MONO_TYPE_CHAR:
8267 case MONO_TYPE_GENERICINST:
8268 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8270 case MONO_TYPE_TYPEDBYREF:
8272 g_warning ("return type 0x%02x unknown", sig->ret->type);
8273 g_assert_not_reached ();
8277 mono_mb_emit_stloc (mb, 3);
8281 * Need to call this after converting the result since MONO_VTADDR needs
8282 * to be adjacent to the call instruction.
8284 if (check_exceptions)
8285 emit_thread_interrupt_checkpoint (mb);
8287 /* we need to convert byref arguments back and free string arrays */
8288 for (i = 0; i < sig->param_count; i++) {
8289 MonoType *t = sig->params [i];
8290 MonoMarshalSpec *spec = mspecs [i + 1];
8292 argnum = i + sig->hasthis;
8294 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8295 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8300 case MONO_TYPE_STRING:
8301 case MONO_TYPE_VALUETYPE:
8302 case MONO_TYPE_CLASS:
8303 case MONO_TYPE_OBJECT:
8304 case MONO_TYPE_SZARRAY:
8305 case MONO_TYPE_BOOLEAN:
8306 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8311 if (!MONO_TYPE_IS_VOID(sig->ret))
8312 mono_mb_emit_ldloc (mb, 3);
8314 mono_mb_emit_byte (mb, CEE_RET);
8317 G_GNUC_UNUSED static void
8318 code_for (MonoMethod *method) {
8319 MonoMethodHeader *header = mono_method_get_header (method);
8320 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));
8324 * mono_marshal_get_native_wrapper:
8325 * @method: The MonoMethod to wrap.
8326 * @check_exceptions: Whenever to check for pending exceptions
8328 * generates IL code for the pinvoke wrapper (the generated method
8329 * calls the unmanaged code in piinfo->addr)
8330 * The wrapper info for the wrapper is a WrapperInfo structure.
8333 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8335 MonoMethodSignature *sig, *csig;
8336 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8337 MonoMethodBuilder *mb;
8338 MonoMarshalSpec **mspecs;
8341 gboolean pinvoke = FALSE;
8344 const char *exc_class = "MissingMethodException";
8345 const char *exc_arg = NULL;
8348 g_assert (method != NULL);
8349 g_assert (mono_method_signature (method)->pinvoke);
8352 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8354 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8355 if ((res = mono_marshal_find_in_cache (cache, method)))
8358 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8360 return mono_cominterop_get_native_wrapper (method);
8362 g_assert_not_reached ();
8366 sig = mono_method_signature (method);
8368 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8369 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8372 if (!piinfo->addr) {
8374 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8375 exc_arg = "Method contains unsupported native code";
8377 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8379 piinfo->addr = mono_lookup_internal_call (method);
8382 /* hack - redirect certain string constructors to CreateString */
8383 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8384 g_assert (!pinvoke);
8385 g_assert (method->string_ctor);
8386 g_assert (sig->hasthis);
8388 /* CreateString returns a value */
8389 csig = signature_dup (method->klass->image, sig);
8390 csig->ret = &mono_defaults.string_class->byval_arg;
8394 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8395 if (!strcmp ("CreateString", res->name) &&
8396 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8399 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8400 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8402 /* create a wrapper to preserve .ctor in stack trace */
8403 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8405 mono_mb_emit_byte (mb, CEE_LDARG_0);
8406 for (i = 1; i <= csig->param_count; i++)
8407 mono_mb_emit_ldarg (mb, i);
8408 mono_mb_emit_managed_call (mb, res, NULL);
8409 mono_mb_emit_byte (mb, CEE_RET);
8411 /* use native_wrapper_cache because internal calls are looked up there */
8412 res = mono_mb_create_and_cache (cache, method,
8413 mb, csig, csig->param_count + 1);
8417 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRING_CTOR);
8418 info->d.string_ctor.method = method;
8420 mono_marshal_set_wrapper_info (res, info);
8426 /* exception will be thrown */
8427 piinfo->addr = NULL;
8428 g_warning ("cannot find CreateString for .ctor");
8431 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8433 mb->method->save_lmf = 1;
8436 * In AOT mode and embedding scenarios, it is possible that the icall is not
8437 * registered in the runtime doing the AOT compilation.
8439 if (!piinfo->addr && !aot) {
8440 mono_mb_emit_exception (mb, exc_class, exc_arg);
8441 csig = signature_dup (method->klass->image, sig);
8443 res = mono_mb_create_and_cache (cache, method,
8444 mb, csig, csig->param_count + 16);
8449 /* internal calls: we simply push all arguments and call the method (no conversions) */
8450 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8452 csig = signature_dup_add_this (sig, method->klass);
8454 csig = signature_dup (method->klass->image, sig);
8456 /* hack - string constructors returns a value */
8457 if (method->string_ctor)
8458 csig->ret = &mono_defaults.string_class->byval_arg;
8464 * Add a null check since public icalls can be called with 'call' which
8465 * does no such check.
8467 mono_mb_emit_byte (mb, CEE_LDARG_0);
8468 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8469 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8470 mono_mb_patch_branch (mb, pos);
8472 mono_mb_emit_byte (mb, CEE_LDARG_0);
8475 for (i = 0; i < sig->param_count; i++)
8476 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8479 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8480 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8481 mono_mb_emit_calli (mb, csig);
8483 g_assert (piinfo->addr);
8484 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8486 if (check_exceptions)
8487 emit_thread_interrupt_checkpoint (mb);
8488 mono_mb_emit_byte (mb, CEE_RET);
8490 csig = signature_dup (method->klass->image, csig);
8492 res = mono_mb_create_and_cache (cache, method,
8493 mb, csig, csig->param_count + 16);
8495 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8496 info->d.managed_to_native.method = method;
8497 mono_marshal_set_wrapper_info (res, info);
8505 g_assert (piinfo->addr);
8507 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8508 mono_method_get_marshal_info (method, mspecs);
8510 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8512 csig = signature_dup (method->klass->image, sig);
8514 res = mono_mb_create_and_cache (cache, method,
8515 mb, csig, csig->param_count + 16);
8518 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8519 info->d.managed_to_native.method = method;
8520 mono_marshal_set_wrapper_info (res, info);
8522 for (i = sig->param_count; i >= 0; i--)
8524 mono_metadata_free_marshal_spec (mspecs [i]);
8527 /* code_for (res); */
8533 * mono_marshal_get_native_func_wrapper:
8534 * @image: The image to use for memory allocation and for looking up custom marshallers.
8535 * @sig: The signature of the function
8536 * @func: The native function to wrap
8538 * Returns a wrapper method around native functions, similar to the pinvoke
8542 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8543 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8545 MonoMethodSignature *csig;
8547 MonoMethodBuilder *mb;
8552 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8553 if ((res = mono_marshal_find_in_cache (cache, func)))
8556 name = g_strdup_printf ("wrapper_native_%p", func);
8557 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8558 mb->method->save_lmf = 1;
8560 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8562 csig = signature_dup (image, sig);
8564 res = mono_mb_create_and_cache (cache, func,
8565 mb, csig, csig->param_count + 16);
8568 mono_marshal_set_wrapper_info (res, NULL);
8570 /* code_for (res); */
8576 * mono_marshal_emit_managed_wrapper:
8578 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8579 * the delegate which wraps the managed method to be called. For closed delegates,
8580 * it could have fewer parameters than the method it wraps.
8581 * THIS_LOC is the memory location where the target of the delegate is stored.
8584 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8586 MonoMethodSignature *sig, *csig;
8588 gboolean closed = FALSE;
8593 /* allocate local 0 (pointer) src_ptr */
8594 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8595 /* allocate local 1 (pointer) dst_ptr */
8596 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8597 /* allocate local 2 (boolean) delete_old */
8598 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8600 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8601 /* Closed delegate */
8602 g_assert (sig->param_count == invoke_sig->param_count + 1);
8604 /* Use a new signature without the first argument */
8605 sig = mono_metadata_signature_dup (sig);
8606 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8607 sig->param_count --;
8610 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8611 /* allocate local 3 to store the return value */
8612 mono_mb_add_local (mb, sig->ret);
8615 mono_mb_emit_icon (mb, 0);
8616 mono_mb_emit_stloc (mb, 2);
8619 * Might need to attach the thread to the JIT or change the
8620 * domain for the callback.
8622 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8623 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8625 /* we first do all conversions */
8626 tmp_locals = alloca (sizeof (int) * sig->param_count);
8627 for (i = 0; i < sig->param_count; i ++) {
8628 MonoType *t = sig->params [i];
8631 case MONO_TYPE_OBJECT:
8632 case MONO_TYPE_CLASS:
8633 case MONO_TYPE_VALUETYPE:
8634 case MONO_TYPE_ARRAY:
8635 case MONO_TYPE_SZARRAY:
8636 case MONO_TYPE_STRING:
8637 case MONO_TYPE_BOOLEAN:
8638 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8647 emit_thread_interrupt_checkpoint (mb);
8650 if (target_handle) {
8651 mono_mb_emit_icon (mb, (gint32)target_handle);
8652 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8655 g_assert_not_reached ();
8657 } else if (closed) {
8658 mono_mb_emit_icon (mb, (gint32)target_handle);
8659 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8662 for (i = 0; i < sig->param_count; i++) {
8663 MonoType *t = sig->params [i];
8665 if (tmp_locals [i]) {
8667 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8669 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8672 mono_mb_emit_ldarg (mb, i);
8675 mono_mb_emit_managed_call (mb, method, NULL);
8677 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8678 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8679 } else if (!sig->ret->byref) {
8680 switch (sig->ret->type) {
8681 case MONO_TYPE_VOID:
8683 case MONO_TYPE_BOOLEAN:
8686 case MONO_TYPE_CHAR:
8698 case MONO_TYPE_OBJECT:
8699 mono_mb_emit_stloc (mb, 3);
8701 case MONO_TYPE_STRING:
8702 csig->ret = &mono_defaults.int_class->byval_arg;
8703 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8705 case MONO_TYPE_VALUETYPE:
8706 case MONO_TYPE_CLASS:
8707 case MONO_TYPE_SZARRAY:
8708 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8711 g_warning ("return type 0x%02x unknown", sig->ret->type);
8712 g_assert_not_reached ();
8715 mono_mb_emit_stloc (mb, 3);
8718 /* Convert byref arguments back */
8719 for (i = 0; i < sig->param_count; i ++) {
8720 MonoType *t = sig->params [i];
8721 MonoMarshalSpec *spec = mspecs [i + 1];
8723 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8724 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8726 else if (t->byref) {
8728 case MONO_TYPE_CLASS:
8729 case MONO_TYPE_VALUETYPE:
8730 case MONO_TYPE_OBJECT:
8731 case MONO_TYPE_STRING:
8732 case MONO_TYPE_BOOLEAN:
8733 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8737 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8738 /* The [Out] information is encoded in the delegate signature */
8740 case MONO_TYPE_SZARRAY:
8741 case MONO_TYPE_CLASS:
8742 case MONO_TYPE_VALUETYPE:
8743 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8746 g_assert_not_reached ();
8751 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8752 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8754 if (m->retobj_var) {
8755 mono_mb_emit_ldloc (mb, m->retobj_var);
8756 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8757 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8760 if (!MONO_TYPE_IS_VOID(sig->ret))
8761 mono_mb_emit_ldloc (mb, 3);
8762 mono_mb_emit_byte (mb, CEE_RET);
8771 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8773 MonoMethodSignature *sig;
8778 * Under windows, delegates passed to native code must use the STDCALL
8779 * calling convention.
8781 csig->call_convention = MONO_CALL_STDCALL;
8784 sig = mono_method_signature (method);
8786 /* Change default calling convention if needed */
8787 /* Why is this a modopt ? */
8788 if (sig->ret && sig->ret->num_mods) {
8789 for (i = 0; i < sig->ret->num_mods; ++i) {
8790 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8791 g_assert (cmod_class);
8792 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8793 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8794 csig->call_convention = MONO_CALL_C;
8795 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8796 csig->call_convention = MONO_CALL_STDCALL;
8797 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8798 csig->call_convention = MONO_CALL_FASTCALL;
8799 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8800 csig->call_convention = MONO_CALL_THISCALL;
8807 * generates IL code to call managed methods from unmanaged code
8808 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8811 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8813 static MonoClass *UnmanagedFunctionPointerAttribute;
8814 MonoMethodSignature *sig, *csig, *invoke_sig;
8815 MonoMethodBuilder *mb;
8816 MonoMethod *res, *invoke;
8817 MonoMarshalSpec **mspecs;
8818 MonoMethodPInvoke piinfo;
8821 EmitMarshalContext m;
8823 g_assert (method != NULL);
8824 g_assert (!mono_method_signature (method)->pinvoke);
8827 * FIXME: Should cache the method+delegate type pair, since the same method
8828 * could be called with different delegates, thus different marshalling
8831 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8832 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8835 invoke = mono_get_delegate_invoke (delegate_klass);
8836 invoke_sig = mono_method_signature (invoke);
8838 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8839 mono_method_get_marshal_info (invoke, mspecs);
8841 sig = mono_method_signature (method);
8843 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8845 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8846 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8848 /* we copy the signature, so that we can modify it */
8850 /* Need to free this later */
8851 csig = mono_metadata_signature_dup (invoke_sig);
8853 csig = signature_dup (method->klass->image, invoke_sig);
8862 m.image = method->klass->image;
8864 mono_marshal_set_callconv_from_modopt (invoke, csig);
8866 /* Handle the UnmanagedFunctionPointerAttribute */
8867 if (!UnmanagedFunctionPointerAttribute)
8868 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8870 /* The attribute is only available in Net 2.0 */
8871 if (UnmanagedFunctionPointerAttribute) {
8872 MonoCustomAttrInfo *cinfo;
8873 MonoCustomAttrEntry *attr;
8876 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8877 * contents of the attribute without constructing it, as that might not be
8878 * possible when running in cross-compiling mode.
8880 cinfo = mono_custom_attrs_from_class (delegate_klass);
8883 for (i = 0; i < cinfo->num_attrs; ++i) {
8884 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8885 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8886 attr = &cinfo->attrs [i];
8892 MonoArray *typed_args, *named_args;
8893 CattrNamedArg *arginfo;
8897 MonoBoolean set_last_error = 0;
8898 MonoBoolean best_fit_mapping = 0;
8899 MonoBoolean throw_on_unmappable = 0;
8901 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8903 g_assert (mono_array_length (typed_args) == 1);
8906 o = mono_array_get (typed_args, MonoObject*, 0);
8907 call_conv = *(gint32*)mono_object_unbox (o);
8910 for (i = 0; i < mono_array_length (named_args); ++i) {
8911 CattrNamedArg *narg = &arginfo [i];
8913 o = mono_array_get (named_args, MonoObject*, i);
8915 g_assert (narg->field);
8916 if (!strcmp (narg->field->name, "CharSet")) {
8917 charset = *(gint32*)mono_object_unbox (o);
8918 } else if (!strcmp (narg->field->name, "SetLastError")) {
8919 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8920 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8921 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8922 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8923 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8925 g_assert_not_reached ();
8931 memset (&piinfo, 0, sizeof (piinfo));
8933 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8935 csig->call_convention = call_conv - 1;
8938 if (cinfo && !cinfo->cached)
8939 mono_custom_attrs_free (cinfo);
8942 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8944 if (!target_handle) {
8947 res = mono_mb_create_and_cache (cache, method,
8948 mb, csig, sig->param_count + 16);
8949 // FIXME: Associate it with the method+delegate_klass pair
8950 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8951 info->d.native_to_managed.method = method;
8952 info->d.native_to_managed.klass = delegate_klass;
8953 mono_marshal_set_wrapper_info (res, info);
8956 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8960 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8962 mono_metadata_free_marshal_spec (mspecs [i]);
8965 /* code_for (res); */
8971 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8974 MonoMethodSignature *sig;
8975 MonoMethodBuilder *mb;
8980 method = mono_get_method (image, token, NULL);
8983 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8984 MonoMethodSignature *csig;
8985 MonoMarshalSpec **mspecs;
8986 EmitMarshalContext m;
8988 sig = mono_method_signature (method);
8989 g_assert (!sig->hasthis);
8991 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8992 mono_method_get_marshal_info (method, mspecs);
8994 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8995 csig = signature_dup (image, sig);
9006 mono_marshal_set_callconv_from_modopt (method, csig);
9008 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9010 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9013 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9016 for (i = sig->param_count; i >= 0; i--)
9018 mono_metadata_free_marshal_spec (mspecs [i]);
9021 return mono_compile_method (method);
9024 sig = mono_method_signature (method);
9025 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9027 param_count = sig->param_count + sig->hasthis;
9028 for (i = 0; i < param_count; i++)
9029 mono_mb_emit_ldarg (mb, i);
9031 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9032 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9034 mono_mb_emit_op (mb, CEE_CALL, method);
9035 mono_mb_emit_byte (mb, CEE_RET);
9038 method = mono_mb_create_method (mb, sig, param_count);
9041 return mono_compile_method (method);
9044 static MonoReflectionType *
9045 type_from_handle (MonoType *handle)
9047 MonoDomain *domain = mono_domain_get ();
9048 MonoClass *klass = mono_class_from_mono_type (handle);
9050 MONO_ARCH_SAVE_REGS;
9052 mono_class_init (klass);
9053 return mono_type_get_object (domain, handle);
9057 * This does the equivalent of mono_object_castclass_with_cache.
9058 * The wrapper info for the wrapper is a WrapperInfo structure.
9061 mono_marshal_get_castclass_with_cache (void)
9063 static MonoMethod *cached;
9065 MonoMethodBuilder *mb;
9066 MonoMethodSignature *sig;
9067 int return_null_pos, cache_miss_pos, invalid_cast_pos;
9073 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9074 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9075 sig->params [0] = &mono_defaults.object_class->byval_arg;
9076 sig->params [1] = &mono_defaults.int_class->byval_arg;
9077 sig->params [2] = &mono_defaults.int_class->byval_arg;
9078 sig->ret = &mono_defaults.object_class->byval_arg;
9081 /* allocate local 0 (pointer) obj_vtable */
9082 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9085 mono_mb_emit_ldarg (mb, 0);
9086 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9088 /*obj_vtable = obj->vtable;*/
9089 mono_mb_emit_ldarg (mb, 0);
9090 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9091 mono_mb_emit_byte (mb, CEE_LDIND_I);
9092 mono_mb_emit_stloc (mb, 0);
9095 mono_mb_emit_ldarg (mb, 2);
9096 mono_mb_emit_byte (mb, CEE_LDIND_I);
9097 mono_mb_emit_ldloc (mb, 0);
9099 /*if (*cache == obj_vtable)*/
9100 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9103 mono_mb_emit_ldarg (mb, 0);
9104 mono_mb_emit_byte (mb, CEE_RET);
9106 mono_mb_patch_branch (mb, cache_miss_pos);
9107 /*if (mono_object_isinst (obj, klass)) */
9108 mono_mb_emit_ldarg (mb, 0);
9109 mono_mb_emit_ldarg (mb, 1);
9110 mono_mb_emit_icall (mb, mono_object_isinst);
9111 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9113 /**cache = obj_vtable;*/
9114 mono_mb_emit_ldarg (mb, 2);
9115 mono_mb_emit_ldloc (mb, 0);
9116 mono_mb_emit_byte (mb, CEE_STIND_I);
9119 mono_mb_emit_ldarg (mb, 0);
9120 mono_mb_emit_byte (mb, CEE_RET);
9123 mono_mb_patch_branch (mb, invalid_cast_pos);
9124 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9127 mono_mb_patch_branch (mb, return_null_pos);
9128 mono_mb_emit_byte (mb, CEE_LDNULL);
9129 mono_mb_emit_byte (mb, CEE_RET);
9131 res = mono_mb_create_method (mb, sig, 8);
9132 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9133 mono_marshal_set_wrapper_info (res, info);
9136 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9137 mono_free_method (res);
9138 mono_metadata_free_method_signature (sig);
9146 * This does the equivalent of mono_object_isinst_with_cache.
9147 * The wrapper info for the wrapper is a WrapperInfo structure.
9150 mono_marshal_get_isinst_with_cache (void)
9152 static MonoMethod *cached;
9154 MonoMethodBuilder *mb;
9155 MonoMethodSignature *sig;
9156 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9162 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9163 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9164 sig->params [0] = &mono_defaults.object_class->byval_arg;
9165 sig->params [1] = &mono_defaults.int_class->byval_arg;
9166 sig->params [2] = &mono_defaults.int_class->byval_arg;
9167 sig->ret = &mono_defaults.object_class->byval_arg;
9170 /* allocate local 0 (pointer) obj_vtable */
9171 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9172 /* allocate local 1 (pointer) cached_vtable */
9173 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9176 mono_mb_emit_ldarg (mb, 0);
9177 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9179 /*obj_vtable = obj->vtable;*/
9180 mono_mb_emit_ldarg (mb, 0);
9181 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9182 mono_mb_emit_byte (mb, CEE_LDIND_I);
9183 mono_mb_emit_stloc (mb, 0);
9185 /* cached_vtable = *cache*/
9186 mono_mb_emit_ldarg (mb, 2);
9187 mono_mb_emit_byte (mb, CEE_LDIND_I);
9188 mono_mb_emit_stloc (mb, 1);
9190 mono_mb_emit_ldloc (mb, 1);
9191 mono_mb_emit_byte (mb, CEE_LDC_I4);
9192 mono_mb_emit_i4 (mb, ~0x1);
9193 mono_mb_emit_byte (mb, CEE_CONV_U);
9194 mono_mb_emit_byte (mb, CEE_AND);
9195 mono_mb_emit_ldloc (mb, 0);
9196 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9197 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9199 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9200 mono_mb_emit_ldloc (mb, 1);
9201 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9202 mono_mb_emit_byte (mb, CEE_CONV_U);
9203 mono_mb_emit_byte (mb, CEE_AND);
9204 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9207 mono_mb_emit_ldarg (mb, 0);
9208 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9211 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9212 mono_mb_emit_byte (mb, CEE_LDNULL);
9214 mono_mb_patch_branch (mb, cache_hit_pos);
9215 mono_mb_emit_byte (mb, CEE_RET);
9217 mono_mb_patch_branch (mb, cache_miss_pos);
9218 /*if (mono_object_isinst (obj, klass)) */
9219 mono_mb_emit_ldarg (mb, 0);
9220 mono_mb_emit_ldarg (mb, 1);
9221 mono_mb_emit_icall (mb, mono_object_isinst);
9222 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9224 /**cache = obj_vtable;*/
9225 mono_mb_emit_ldarg (mb, 2);
9226 mono_mb_emit_ldloc (mb, 0);
9227 mono_mb_emit_byte (mb, CEE_STIND_I);
9230 mono_mb_emit_ldarg (mb, 0);
9231 mono_mb_emit_byte (mb, CEE_RET);
9234 mono_mb_patch_branch (mb, not_an_instance_pos);
9235 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9236 mono_mb_emit_ldarg (mb, 2);
9237 /*obj_vtable | 0x1*/
9238 mono_mb_emit_ldloc (mb, 0);
9239 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9240 mono_mb_emit_byte (mb, CEE_CONV_U);
9241 mono_mb_emit_byte (mb, CEE_OR);
9244 mono_mb_emit_byte (mb, CEE_STIND_I);
9247 mono_mb_patch_branch (mb, return_null_pos);
9248 mono_mb_emit_byte (mb, CEE_LDNULL);
9249 mono_mb_emit_byte (mb, CEE_RET);
9251 res = mono_mb_create_method (mb, sig, 8);
9252 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9253 mono_marshal_set_wrapper_info (res, info);
9256 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9257 mono_free_method (res);
9258 mono_metadata_free_method_signature (sig);
9266 * mono_marshal_get_isinst:
9267 * @klass: the type of the field
9269 * This method generates a function which can be used to check if an object is
9270 * an instance of the given type, icluding the case where the object is a proxy.
9271 * The generated function has the following signature:
9272 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9275 mono_marshal_get_isinst (MonoClass *klass)
9277 static MonoMethodSignature *isint_sig = NULL;
9280 int pos_was_ok, pos_failed, pos_end, pos_end2;
9282 MonoMethodBuilder *mb;
9284 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9285 if ((res = mono_marshal_find_in_cache (cache, klass)))
9289 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9290 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9291 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9292 isint_sig->pinvoke = 0;
9295 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9296 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9299 mb->method->save_lmf = 1;
9301 /* check if the object is a proxy that needs special cast */
9302 mono_mb_emit_ldarg (mb, 0);
9303 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9304 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9306 /* The result of MONO_ISINST can be:
9307 0) the type check succeeded
9308 1) the type check did not succeed
9309 2) a CanCastTo call is needed */
9311 mono_mb_emit_byte (mb, CEE_DUP);
9312 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9314 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9315 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9317 /* get the real proxy from the transparent proxy*/
9319 mono_mb_emit_ldarg (mb, 0);
9320 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9321 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9325 mono_mb_patch_branch (mb, pos_failed);
9326 mono_mb_emit_byte (mb, CEE_LDNULL);
9327 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9331 mono_mb_patch_branch (mb, pos_was_ok);
9332 mono_mb_emit_byte (mb, CEE_POP);
9333 mono_mb_emit_ldarg (mb, 0);
9337 mono_mb_patch_branch (mb, pos_end);
9338 mono_mb_patch_branch (mb, pos_end2);
9339 mono_mb_emit_byte (mb, CEE_RET);
9341 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9348 * mono_marshal_get_castclass:
9349 * @klass: the type of the field
9351 * This method generates a function which can be used to cast an object to
9352 * an instance of the given type, icluding the case where the object is a proxy.
9353 * The generated function has the following signature:
9354 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9355 * The wrapper info for the wrapper is a WrapperInfo structure.
9358 mono_marshal_get_castclass (MonoClass *klass)
9360 static MonoMethodSignature *castclass_sig = NULL;
9363 int pos_was_ok, pos_was_ok2;
9365 MonoMethodBuilder *mb;
9368 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9369 if ((res = mono_marshal_find_in_cache (cache, klass)))
9372 if (!castclass_sig) {
9373 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9374 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9375 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9376 castclass_sig->pinvoke = 0;
9379 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9380 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9383 mb->method->save_lmf = 1;
9385 /* check if the object is a proxy that needs special cast */
9386 mono_mb_emit_ldarg (mb, 0);
9387 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9388 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9390 /* The result of MONO_ISINST can be:
9391 0) the cast is valid
9392 1) cast of unknown proxy type
9393 or an exception if the cast is is invalid
9396 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9398 /* get the real proxy from the transparent proxy*/
9400 mono_mb_emit_ldarg (mb, 0);
9401 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9402 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9405 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9408 mono_mb_patch_branch (mb, pos_was_ok);
9409 mono_mb_patch_branch (mb, pos_was_ok2);
9410 mono_mb_emit_ldarg (mb, 0);
9413 mono_mb_emit_byte (mb, CEE_RET);
9415 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9418 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9419 mono_marshal_set_wrapper_info (res, info);
9425 mono_marshal_get_proxy_cancast (MonoClass *klass)
9427 static MonoMethodSignature *isint_sig = NULL;
9430 int pos_failed, pos_end;
9431 char *name, *klass_name;
9432 MonoMethod *can_cast_to;
9433 MonoMethodDesc *desc;
9434 MonoMethodBuilder *mb;
9436 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9437 if ((res = mono_marshal_find_in_cache (cache, klass)))
9441 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9442 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9443 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9444 isint_sig->pinvoke = 0;
9447 klass_name = mono_type_full_name (&klass->byval_arg);
9448 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
9449 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9450 g_free (klass_name);
9453 mb->method->save_lmf = 1;
9455 /* get the real proxy from the transparent proxy*/
9456 mono_mb_emit_ldarg (mb, 0);
9457 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9458 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9460 /* get the reflection type from the type handle */
9461 mono_mb_emit_ptr (mb, &klass->byval_arg);
9462 mono_mb_emit_icall (mb, type_from_handle);
9464 mono_mb_emit_ldarg (mb, 0);
9466 /* make the call to CanCastTo (type, ob) */
9467 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9468 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9469 g_assert (can_cast_to);
9470 mono_method_desc_free (desc);
9471 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9473 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9475 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9476 mono_mb_emit_ptr (mb, &klass->byval_arg);
9477 mono_mb_emit_icall (mb, type_from_handle);
9478 mono_mb_emit_ldarg (mb, 0);
9480 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9481 emit_thread_interrupt_checkpoint (mb);
9483 mono_mb_emit_ldarg (mb, 0);
9484 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9488 mono_mb_patch_branch (mb, pos_failed);
9489 mono_mb_emit_byte (mb, CEE_LDNULL);
9493 mono_mb_patch_branch (mb, pos_end);
9494 mono_mb_emit_byte (mb, CEE_RET);
9496 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9503 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9506 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9507 klass = mono_class_from_mono_type (rtype->type);
9508 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9512 * mono_marshal_get_struct_to_ptr:
9515 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9516 * The wrapper info for the wrapper is a WrapperInfo structure.
9519 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9521 MonoMethodBuilder *mb;
9522 static MonoMethod *stoptr = NULL;
9526 g_assert (klass != NULL);
9528 mono_marshal_load_type_info (klass);
9530 if (klass->marshal_info->str_to_ptr)
9531 return klass->marshal_info->str_to_ptr;
9534 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9537 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9539 if (klass->blittable) {
9540 mono_mb_emit_byte (mb, CEE_LDARG_1);
9541 mono_mb_emit_byte (mb, CEE_LDARG_0);
9542 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9543 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9544 mono_mb_emit_byte (mb, CEE_PREFIX1);
9545 mono_mb_emit_byte (mb, CEE_CPBLK);
9548 /* allocate local 0 (pointer) src_ptr */
9549 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9550 /* allocate local 1 (pointer) dst_ptr */
9551 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9552 /* allocate local 2 (boolean) delete_old */
9553 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9554 mono_mb_emit_byte (mb, CEE_LDARG_2);
9555 mono_mb_emit_stloc (mb, 2);
9557 /* initialize src_ptr to point to the start of object data */
9558 mono_mb_emit_byte (mb, CEE_LDARG_0);
9559 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9560 mono_mb_emit_stloc (mb, 0);
9562 /* initialize dst_ptr */
9563 mono_mb_emit_byte (mb, CEE_LDARG_1);
9564 mono_mb_emit_stloc (mb, 1);
9566 emit_struct_conv (mb, klass, FALSE);
9569 mono_mb_emit_byte (mb, CEE_RET);
9571 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9574 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9575 mono_marshal_set_wrapper_info (res, info);
9577 klass->marshal_info->str_to_ptr = res;
9582 * mono_marshal_get_ptr_to_struct:
9585 * generates IL code for PtrToStructure (IntPtr src, object structure)
9586 * The wrapper info for the wrapper is a WrapperInfo structure.
9589 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9591 MonoMethodBuilder *mb;
9592 static MonoMethodSignature *ptostr = NULL;
9596 g_assert (klass != NULL);
9598 mono_marshal_load_type_info (klass);
9600 if (klass->marshal_info->ptr_to_str)
9601 return klass->marshal_info->ptr_to_str;
9604 MonoMethodSignature *sig;
9606 /* Create the signature corresponding to
9607 static void PtrToStructure (IntPtr ptr, object structure);
9608 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9609 sig = mono_create_icall_signature ("void ptr object");
9610 sig = signature_dup (mono_defaults.corlib, sig);
9612 mono_memory_barrier ();
9616 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9618 if (klass->blittable) {
9619 mono_mb_emit_byte (mb, CEE_LDARG_1);
9620 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9621 mono_mb_emit_byte (mb, CEE_LDARG_0);
9622 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9623 mono_mb_emit_byte (mb, CEE_PREFIX1);
9624 mono_mb_emit_byte (mb, CEE_CPBLK);
9627 /* allocate local 0 (pointer) src_ptr */
9628 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9629 /* allocate local 1 (pointer) dst_ptr */
9630 mono_mb_add_local (mb, &klass->this_arg);
9632 /* initialize src_ptr to point to the start of object data */
9633 mono_mb_emit_byte (mb, CEE_LDARG_0);
9634 mono_mb_emit_stloc (mb, 0);
9636 /* initialize dst_ptr */
9637 mono_mb_emit_byte (mb, CEE_LDARG_1);
9638 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9639 mono_mb_emit_stloc (mb, 1);
9641 emit_struct_conv (mb, klass, TRUE);
9644 mono_mb_emit_byte (mb, CEE_RET);
9646 res = mono_mb_create_method (mb, ptostr, 0);
9649 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9650 mono_marshal_set_wrapper_info (res, info);
9652 klass->marshal_info->ptr_to_str = res;
9657 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9658 * This is used to avoid infinite recursion since it is hard to determine where to
9659 * replace a method with its synchronized wrapper, and where not.
9660 * The runtime should execute METHOD instead of the wrapper.
9661 * The wrapper info for the wrapper is a WrapperInfo structure.
9664 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9666 MonoMethodBuilder *mb;
9668 MonoMethodSignature *sig;
9671 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9672 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9673 mono_mb_emit_byte (mb, CEE_RET);
9674 sig = signature_dup (method->klass->image, mono_method_signature (method));
9675 res = mono_mb_create_method (mb, sig, 0);
9677 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9678 info->d.synchronized_inner.method = method;
9679 mono_marshal_set_wrapper_info (res, info);
9684 * generates IL code for the synchronized wrapper: the generated method
9685 * calls METHOD while locking 'this' or the parent type.
9688 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9690 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9691 MonoMethodSignature *sig;
9692 MonoExceptionClause *clause;
9693 MonoMethodBuilder *mb;
9696 int i, pos, this_local, ret_local = 0;
9700 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9703 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9704 if ((res = mono_marshal_find_in_cache (cache, method)))
9707 sig = signature_dup (method->klass->image, mono_method_signature (method));
9710 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9713 if (!MONO_TYPE_IS_VOID (sig->ret))
9714 ret_local = mono_mb_add_local (mb, sig->ret);
9716 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9717 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9718 /* This will throw the type load exception when the wrapper is compiled */
9719 mono_mb_emit_byte (mb, CEE_LDNULL);
9720 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9721 mono_mb_emit_byte (mb, CEE_POP);
9723 if (!MONO_TYPE_IS_VOID (sig->ret))
9724 mono_mb_emit_ldloc (mb, ret_local);
9725 mono_mb_emit_byte (mb, CEE_RET);
9727 res = mono_mb_create_and_cache (cache, method,
9728 mb, sig, sig->param_count + 16);
9735 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9737 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9738 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9740 mono_loader_lock ();
9742 if (!enter_method) {
9743 MonoMethodDesc *desc;
9745 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9746 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9747 g_assert (enter_method);
9748 mono_method_desc_free (desc);
9750 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9751 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9752 g_assert (exit_method);
9753 mono_method_desc_free (desc);
9755 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9756 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9757 g_assert (gettypefromhandle_method);
9758 mono_method_desc_free (desc);
9761 mono_loader_unlock ();
9763 /* Push this or the type object */
9764 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9765 /* We have special handling for this in the JIT */
9766 int index = mono_mb_add_data (mb, method->klass);
9767 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9768 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9769 mono_mb_emit_i4 (mb, index);
9771 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9774 mono_mb_emit_ldarg (mb, 0);
9775 mono_mb_emit_stloc (mb, this_local);
9777 /* Call Monitor::Enter() */
9778 mono_mb_emit_ldloc (mb, this_local);
9779 mono_mb_emit_managed_call (mb, enter_method, NULL);
9781 clause->try_offset = mono_mb_get_label (mb);
9783 /* Call the method */
9785 mono_mb_emit_ldarg (mb, 0);
9786 for (i = 0; i < sig->param_count; i++)
9787 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9789 mono_mb_emit_managed_call (mb, method, NULL);
9791 if (!MONO_TYPE_IS_VOID (sig->ret))
9792 mono_mb_emit_stloc (mb, ret_local);
9794 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9796 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9797 clause->handler_offset = mono_mb_get_label (mb);
9799 /* Call Monitor::Exit() */
9800 mono_mb_emit_ldloc (mb, this_local);
9801 mono_mb_emit_managed_call (mb, exit_method, NULL);
9802 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9804 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9806 mono_mb_patch_branch (mb, pos);
9807 if (!MONO_TYPE_IS_VOID (sig->ret))
9808 mono_mb_emit_ldloc (mb, ret_local);
9809 mono_mb_emit_byte (mb, CEE_RET);
9811 mono_mb_set_clauses (mb, 1, clause);
9813 res = mono_mb_create_and_cache (cache, method,
9814 mb, sig, sig->param_count + 16);
9822 * the returned method calls 'method' unboxing the this argument
9825 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9827 MonoMethodSignature *sig = mono_method_signature (method);
9829 MonoMethodBuilder *mb;
9833 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9834 if ((res = mono_marshal_find_in_cache (cache, method)))
9837 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9839 g_assert (sig->hasthis);
9841 mono_mb_emit_ldarg (mb, 0);
9842 mono_mb_emit_icon (mb, sizeof (MonoObject));
9843 mono_mb_emit_byte (mb, CEE_ADD);
9844 for (i = 0; i < sig->param_count; ++i)
9845 mono_mb_emit_ldarg (mb, i + 1);
9846 mono_mb_emit_managed_call (mb, method, NULL);
9847 mono_mb_emit_byte (mb, CEE_RET);
9849 res = mono_mb_create_and_cache (cache, method,
9850 mb, sig, sig->param_count + 16);
9853 /* code_for (res); */
9859 STELEMREF_OBJECT, /*no check at all*/
9860 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9861 STELEMREF_CLASS, /*only the klass->parents check*/
9862 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9863 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9864 STELEMREF_KIND_COUNT
9867 static const char *strelemref_wrapper_name[] = {
9868 "object", "sealed_class", "class", "interface", "complex"
9872 is_monomorphic_array (MonoClass *klass)
9874 MonoClass *element_class;
9875 if (klass->rank != 1)
9878 element_class = klass->element_class;
9879 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9883 get_virtual_stelemref_kind (MonoClass *element_class)
9885 if (element_class == mono_defaults.object_class)
9886 return STELEMREF_OBJECT;
9887 if (is_monomorphic_array (element_class))
9888 return STELEMREF_SEALED_CLASS;
9889 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9890 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9891 #ifdef COMPRESSED_INTERFACE_BITMAP
9892 return STELEMREF_COMPLEX;
9894 return STELEMREF_INTERFACE;
9896 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9897 if (element_class->marshalbyref || element_class->rank || mono_class_has_variant_generic_params (element_class))
9898 return STELEMREF_COMPLEX;
9899 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9900 return STELEMREF_SEALED_CLASS;
9901 return STELEMREF_CLASS;
9905 load_array_element_address (MonoMethodBuilder *mb)
9907 mono_mb_emit_ldarg (mb, 0);
9908 mono_mb_emit_ldarg (mb, 1);
9909 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9913 load_array_class (MonoMethodBuilder *mb, int aklass)
9915 mono_mb_emit_ldarg (mb, 0);
9916 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9917 mono_mb_emit_byte (mb, CEE_LDIND_I);
9918 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9919 mono_mb_emit_byte (mb, CEE_LDIND_I);
9920 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9921 mono_mb_emit_byte (mb, CEE_LDIND_I);
9922 mono_mb_emit_stloc (mb, aklass);
9926 load_value_class (MonoMethodBuilder *mb, int vklass)
9928 mono_mb_emit_ldarg (mb, 2);
9929 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9930 mono_mb_emit_byte (mb, CEE_LDIND_I);
9931 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9932 mono_mb_emit_byte (mb, CEE_LDIND_I);
9933 mono_mb_emit_stloc (mb, vklass);
9938 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9940 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9941 printf ("slow vstore of %s\n", name);
9947 * The wrapper info for the wrapper is a WrapperInfo structure.
9950 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9951 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9952 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9953 * - Add a case for arrays of arrays.
9956 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9958 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9959 static MonoMethodSignature *signature;
9960 MonoMethodBuilder *mb;
9964 const char *param_names [16];
9966 int aklass, vklass, vtable, uiid;
9967 int array_slot_addr;
9970 g_assert (array_class->rank == 1);
9971 kind = get_virtual_stelemref_kind (array_class->element_class);
9973 if (cached_methods [kind])
9974 return cached_methods [kind];
9976 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9977 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9980 param_names [0] = "index";
9981 param_names [1] = "value";
9982 mono_mb_set_param_names (mb, param_names);
9985 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9987 /* void this::stelemref (size_t idx, void* value) */
9988 sig->ret = &mono_defaults.void_class->byval_arg;
9989 sig->hasthis = TRUE;
9990 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9991 sig->params [1] = &mono_defaults.object_class->byval_arg;
9995 /*For now simply call plain old stelemref*/
9997 case STELEMREF_OBJECT:
9998 /* ldelema (implicit bound check) */
9999 load_array_element_address (mb);
10001 mono_mb_emit_ldarg (mb, 2);
10002 mono_mb_emit_byte (mb, CEE_STIND_REF);
10003 mono_mb_emit_byte (mb, CEE_RET);
10006 case STELEMREF_COMPLEX:
10008 <ldelema (bound check)>
10011 if (!mono_object_isinst (value, aklass))
10015 *array_slot_addr = value;
10018 throw new ArrayTypeMismatchException ();
10021 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10022 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10026 /*Use this to debug/record stores that are going thru the slow path*/
10027 MonoMethodSignature *csig;
10028 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10029 csig->ret = &mono_defaults.void_class->byval_arg;
10030 csig->params [0] = &mono_defaults.object_class->byval_arg;
10031 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10032 csig->params [2] = &mono_defaults.object_class->byval_arg;
10033 mono_mb_emit_ldarg (mb, 0);
10034 mono_mb_emit_ldarg (mb, 1);
10035 mono_mb_emit_ldarg (mb, 2);
10036 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
10040 /* ldelema (implicit bound check) */
10041 load_array_element_address (mb);
10042 mono_mb_emit_stloc (mb, array_slot_addr);
10044 /* if (!value) goto do_store */
10045 mono_mb_emit_ldarg (mb, 2);
10046 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10048 /* aklass = array->vtable->klass->element_class */
10049 load_array_class (mb, aklass);
10051 /*if (mono_object_isinst (value, aklass)) */
10052 mono_mb_emit_ldarg (mb, 2);
10053 mono_mb_emit_ldloc (mb, aklass);
10054 mono_mb_emit_icall (mb, mono_object_isinst);
10055 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10058 mono_mb_patch_branch (mb, b1);
10059 mono_mb_emit_ldloc (mb, array_slot_addr);
10060 mono_mb_emit_ldarg (mb, 2);
10061 mono_mb_emit_byte (mb, CEE_STIND_REF);
10062 mono_mb_emit_byte (mb, CEE_RET);
10064 /* do_exception: */
10065 mono_mb_patch_branch (mb, b2);
10067 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10070 case STELEMREF_SEALED_CLASS:
10072 <ldelema (bound check)>
10076 aklass = array->vtable->klass->element_class;
10077 vklass = value->vtable->klass;
10079 if (vklass != aklass)
10083 *array_slot_addr = value;
10086 throw new ArrayTypeMismatchException ();
10088 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10089 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10090 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10093 /* ldelema (implicit bound check) */
10094 load_array_element_address (mb);
10095 mono_mb_emit_stloc (mb, array_slot_addr);
10097 /* if (!value) goto do_store */
10098 mono_mb_emit_ldarg (mb, 2);
10099 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10101 /* aklass = array->vtable->klass->element_class */
10102 load_array_class (mb, aklass);
10104 /* vklass = value->vtable->klass */
10105 load_value_class (mb, vklass);
10107 /*if (vklass != aklass) goto do_exception; */
10108 mono_mb_emit_ldloc (mb, aklass);
10109 mono_mb_emit_ldloc (mb, vklass);
10110 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10113 mono_mb_patch_branch (mb, b1);
10114 mono_mb_emit_ldloc (mb, array_slot_addr);
10115 mono_mb_emit_ldarg (mb, 2);
10116 mono_mb_emit_byte (mb, CEE_STIND_REF);
10117 mono_mb_emit_byte (mb, CEE_RET);
10119 /* do_exception: */
10120 mono_mb_patch_branch (mb, b2);
10121 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10124 case STELEMREF_CLASS:
10127 <ldelema (bound check)>
10131 aklass = array->vtable->klass->element_class;
10132 vklass = value->vtable->klass;
10134 if (vklass->idepth < aklass->idepth)
10137 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10141 *array_slot_addr = value;
10145 throw new ArrayTypeMismatchException ();
10147 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10148 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10149 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10151 /* ldelema (implicit bound check) */
10152 load_array_element_address (mb);
10153 mono_mb_emit_stloc (mb, array_slot_addr);
10155 /* if (!value) goto do_store */
10156 mono_mb_emit_ldarg (mb, 2);
10157 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10159 /* aklass = array->vtable->klass->element_class */
10160 load_array_class (mb, aklass);
10162 /* vklass = value->vtable->klass */
10163 load_value_class (mb, vklass);
10165 /*if (mono_object_isinst (value, aklass)) */
10166 mono_mb_emit_ldarg (mb, 2);
10167 mono_mb_emit_ldloc (mb, aklass);
10168 mono_mb_emit_icall (mb, mono_object_isinst);
10169 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10171 /* if (vklass->idepth < aklass->idepth) goto failue */
10172 mono_mb_emit_ldloc (mb, vklass);
10173 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10174 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10176 mono_mb_emit_ldloc (mb, aklass);
10177 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10178 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10180 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10182 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10183 mono_mb_emit_ldloc (mb, vklass);
10184 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10185 mono_mb_emit_byte (mb, CEE_LDIND_I);
10187 mono_mb_emit_ldloc (mb, aklass);
10188 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10189 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10190 mono_mb_emit_icon (mb, 1);
10191 mono_mb_emit_byte (mb, CEE_SUB);
10192 mono_mb_emit_icon (mb, sizeof (void*));
10193 mono_mb_emit_byte (mb, CEE_MUL);
10194 mono_mb_emit_byte (mb, CEE_ADD);
10195 mono_mb_emit_byte (mb, CEE_LDIND_I);
10197 mono_mb_emit_ldloc (mb, aklass);
10198 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10201 mono_mb_patch_branch (mb, b1);
10202 mono_mb_emit_ldloc (mb, array_slot_addr);
10203 mono_mb_emit_ldarg (mb, 2);
10204 mono_mb_emit_byte (mb, CEE_STIND_REF);
10205 mono_mb_emit_byte (mb, CEE_RET);
10207 /* do_exception: */
10208 mono_mb_patch_branch (mb, b2);
10209 mono_mb_patch_branch (mb, b3);
10211 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10214 case STELEMREF_INTERFACE:
10221 klass = array->obj.vtable->klass->element_class;
10222 vt = value->vtable;
10223 uiid = klass->interface_id;
10224 if (uiid > vt->max_interface_id)
10226 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10229 mono_array_setref (array, index, value);
10232 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10234 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10235 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10236 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10237 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10239 /* ldelema (implicit bound check) */
10240 load_array_element_address (mb);
10241 mono_mb_emit_stloc (mb, array_slot_addr);
10243 /* if (!value) goto do_store */
10244 mono_mb_emit_ldarg (mb, 2);
10245 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10247 /* klass = array->vtable->klass->element_class */
10248 load_array_class (mb, aklass);
10250 /* vt = value->vtable */
10251 mono_mb_emit_ldarg (mb, 2);
10252 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10253 mono_mb_emit_byte (mb, CEE_LDIND_I);
10254 mono_mb_emit_stloc (mb, vtable);
10256 /* uiid = klass->interface_id; */
10257 mono_mb_emit_ldloc (mb, aklass);
10258 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10259 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10260 mono_mb_emit_stloc (mb, uiid);
10262 /*if (uiid > vt->max_interface_id)*/
10263 mono_mb_emit_ldloc (mb, uiid);
10264 mono_mb_emit_ldloc (mb, vtable);
10265 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10266 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10267 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10269 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10271 /*vt->interface_bitmap*/
10272 mono_mb_emit_ldloc (mb, vtable);
10273 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10274 mono_mb_emit_byte (mb, CEE_LDIND_I);
10277 mono_mb_emit_ldloc (mb, uiid);
10278 mono_mb_emit_icon (mb, 3);
10279 mono_mb_emit_byte (mb, CEE_SHR_UN);
10281 /*vt->interface_bitmap [(uiid) >> 3]*/
10282 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10283 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10285 /*(1 << ((uiid)&7)))*/
10286 mono_mb_emit_icon (mb, 1);
10287 mono_mb_emit_ldloc (mb, uiid);
10288 mono_mb_emit_icon (mb, 7);
10289 mono_mb_emit_byte (mb, CEE_AND);
10290 mono_mb_emit_byte (mb, CEE_SHL);
10292 /*bitwise and the whole thing*/
10293 mono_mb_emit_byte (mb, CEE_AND);
10294 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10297 mono_mb_patch_branch (mb, b1);
10298 mono_mb_emit_ldloc (mb, array_slot_addr);
10299 mono_mb_emit_ldarg (mb, 2);
10300 mono_mb_emit_byte (mb, CEE_STIND_REF);
10301 mono_mb_emit_byte (mb, CEE_RET);
10303 /* do_exception: */
10304 mono_mb_patch_branch (mb, b2);
10305 mono_mb_patch_branch (mb, b3);
10306 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10310 mono_mb_emit_ldarg (mb, 0);
10311 mono_mb_emit_ldarg (mb, 1);
10312 mono_mb_emit_ldarg (mb, 2);
10313 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10314 mono_mb_emit_byte (mb, CEE_RET);
10318 res = mono_mb_create_method (mb, signature, 4);
10319 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10321 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10322 info->d.virtual_stelemref.kind = kind;
10323 mono_marshal_set_wrapper_info (res, info);
10325 mono_marshal_lock ();
10326 if (!cached_methods [kind]) {
10327 cached_methods [kind] = res;
10328 mono_marshal_unlock ();
10330 mono_marshal_unlock ();
10331 mono_free_method (res);
10335 return cached_methods [kind];
10339 * The wrapper info for the wrapper is a WrapperInfo structure.
10342 mono_marshal_get_stelemref ()
10344 static MonoMethod* ret = NULL;
10345 MonoMethodSignature *sig;
10346 MonoMethodBuilder *mb;
10349 guint32 b1, b2, b3, b4;
10351 int aklass, vklass;
10352 int array_slot_addr;
10357 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10360 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10362 /* void stelemref (void* array, int idx, void* value) */
10363 sig->ret = &mono_defaults.void_class->byval_arg;
10364 sig->params [0] = &mono_defaults.object_class->byval_arg;
10365 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10366 sig->params [2] = &mono_defaults.object_class->byval_arg;
10368 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10369 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10370 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10374 <ldelema (bound check)>
10378 aklass = array->vtable->klass->element_class;
10379 vklass = value->vtable->klass;
10381 if (vklass->idepth < aklass->idepth)
10384 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10388 *array_slot_addr = value;
10392 if (mono_object_isinst (value, aklass))
10395 throw new ArrayTypeMismatchException ();
10398 /* ldelema (implicit bound check) */
10399 mono_mb_emit_ldarg (mb, 0);
10400 mono_mb_emit_ldarg (mb, 1);
10401 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10402 mono_mb_emit_stloc (mb, array_slot_addr);
10404 /* if (!value) goto do_store */
10405 mono_mb_emit_ldarg (mb, 2);
10406 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10408 /* aklass = array->vtable->klass->element_class */
10409 mono_mb_emit_ldarg (mb, 0);
10410 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10411 mono_mb_emit_byte (mb, CEE_LDIND_I);
10412 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10413 mono_mb_emit_byte (mb, CEE_LDIND_I);
10414 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10415 mono_mb_emit_byte (mb, CEE_LDIND_I);
10416 mono_mb_emit_stloc (mb, aklass);
10418 /* vklass = value->vtable->klass */
10419 mono_mb_emit_ldarg (mb, 2);
10420 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10421 mono_mb_emit_byte (mb, CEE_LDIND_I);
10422 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10423 mono_mb_emit_byte (mb, CEE_LDIND_I);
10424 mono_mb_emit_stloc (mb, vklass);
10426 /* if (vklass->idepth < aklass->idepth) goto failue */
10427 mono_mb_emit_ldloc (mb, vklass);
10428 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10429 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10431 mono_mb_emit_ldloc (mb, aklass);
10432 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10433 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10435 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10437 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10438 mono_mb_emit_ldloc (mb, vklass);
10439 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10440 mono_mb_emit_byte (mb, CEE_LDIND_I);
10442 mono_mb_emit_ldloc (mb, aklass);
10443 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10444 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10445 mono_mb_emit_icon (mb, 1);
10446 mono_mb_emit_byte (mb, CEE_SUB);
10447 mono_mb_emit_icon (mb, sizeof (void*));
10448 mono_mb_emit_byte (mb, CEE_MUL);
10449 mono_mb_emit_byte (mb, CEE_ADD);
10450 mono_mb_emit_byte (mb, CEE_LDIND_I);
10452 mono_mb_emit_ldloc (mb, aklass);
10454 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10456 copy_pos = mono_mb_get_label (mb);
10458 mono_mb_patch_branch (mb, b1);
10459 mono_mb_emit_ldloc (mb, array_slot_addr);
10460 mono_mb_emit_ldarg (mb, 2);
10461 mono_mb_emit_byte (mb, CEE_STIND_REF);
10463 mono_mb_emit_byte (mb, CEE_RET);
10466 mono_mb_patch_branch (mb, b2);
10467 mono_mb_patch_branch (mb, b3);
10469 mono_mb_emit_ldarg (mb, 2);
10470 mono_mb_emit_ldloc (mb, aklass);
10471 mono_mb_emit_icall (mb, mono_object_isinst);
10473 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10474 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10475 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10477 mono_mb_emit_byte (mb, CEE_RET);
10478 ret = mono_mb_create_method (mb, sig, 4);
10481 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_NONE);
10482 mono_marshal_set_wrapper_info (ret, info);
10490 MonoMethod *method;
10493 /* LOCKING: vars accessed under the marshal lock */
10494 static ArrayElemAddr *elem_addr_cache = NULL;
10495 static int elem_addr_cache_size = 0;
10496 static int elem_addr_cache_next = 0;
10499 * mono_marshal_get_array_address:
10500 * @rank: rank of the array type
10501 * @elem_size: size in bytes of an element of an array.
10503 * Returns a MonoMethd that implements the code to get the address
10504 * of an element in a multi-dimenasional array of @rank dimensions.
10505 * The returned method takes an array as the first argument and then
10506 * @rank indexes for the @rank dimensions.
10509 mono_marshal_get_array_address (int rank, int elem_size)
10512 MonoMethodBuilder *mb;
10513 MonoMethodSignature *sig;
10514 int i, bounds, ind, realidx;
10515 int branch_pos, *branch_positions;
10519 mono_marshal_lock ();
10520 for (i = 0; i < elem_addr_cache_next; ++i) {
10521 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10522 ret = elem_addr_cache [i].method;
10526 mono_marshal_unlock ();
10530 branch_positions = g_new0 (int, rank);
10532 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10534 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10535 sig->ret = &mono_defaults.int_class->byval_arg;
10536 sig->params [0] = &mono_defaults.object_class->byval_arg;
10537 for (i = 0; i < rank; ++i) {
10538 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10541 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10543 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10544 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10545 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10547 /* bounds = array->bounds; */
10548 mono_mb_emit_ldarg (mb, 0);
10549 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10550 mono_mb_emit_byte (mb, CEE_LDIND_I);
10551 mono_mb_emit_stloc (mb, bounds);
10553 /* ind is the overall element index, realidx is the partial index in a single dimension */
10554 /* ind = idx0 - bounds [0].lower_bound */
10555 mono_mb_emit_ldarg (mb, 1);
10556 mono_mb_emit_ldloc (mb, bounds);
10557 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10558 mono_mb_emit_byte (mb, CEE_ADD);
10559 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10560 mono_mb_emit_byte (mb, CEE_SUB);
10561 mono_mb_emit_stloc (mb, ind);
10562 /* if (ind >= bounds [0].length) goto exeception; */
10563 mono_mb_emit_ldloc (mb, ind);
10564 mono_mb_emit_ldloc (mb, bounds);
10565 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10566 mono_mb_emit_byte (mb, CEE_ADD);
10567 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10568 /* note that we use unsigned comparison */
10569 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10571 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10572 * We could also decide to ignore the passed elem_size and get it
10573 * from the array object, to reduce the number of methods we generate:
10574 * the additional cost is 3 memory loads and a non-immediate mul.
10576 for (i = 1; i < rank; ++i) {
10577 /* realidx = idxi - bounds [i].lower_bound */
10578 mono_mb_emit_ldarg (mb, 1 + i);
10579 mono_mb_emit_ldloc (mb, bounds);
10580 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10581 mono_mb_emit_byte (mb, CEE_ADD);
10582 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10583 mono_mb_emit_byte (mb, CEE_SUB);
10584 mono_mb_emit_stloc (mb, realidx);
10585 /* if (realidx >= bounds [i].length) goto exeception; */
10586 mono_mb_emit_ldloc (mb, realidx);
10587 mono_mb_emit_ldloc (mb, bounds);
10588 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10589 mono_mb_emit_byte (mb, CEE_ADD);
10590 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10591 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10592 /* ind = ind * bounds [i].length + realidx */
10593 mono_mb_emit_ldloc (mb, ind);
10594 mono_mb_emit_ldloc (mb, bounds);
10595 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10596 mono_mb_emit_byte (mb, CEE_ADD);
10597 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10598 mono_mb_emit_byte (mb, CEE_MUL);
10599 mono_mb_emit_ldloc (mb, realidx);
10600 mono_mb_emit_byte (mb, CEE_ADD);
10601 mono_mb_emit_stloc (mb, ind);
10604 /* return array->vector + ind * element_size */
10605 mono_mb_emit_ldarg (mb, 0);
10606 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10607 mono_mb_emit_ldloc (mb, ind);
10608 mono_mb_emit_icon (mb, elem_size);
10609 mono_mb_emit_byte (mb, CEE_MUL);
10610 mono_mb_emit_byte (mb, CEE_ADD);
10611 mono_mb_emit_byte (mb, CEE_RET);
10613 /* patch the branches to get here and throw */
10614 for (i = 1; i < rank; ++i) {
10615 mono_mb_patch_branch (mb, branch_positions [i]);
10617 mono_mb_patch_branch (mb, branch_pos);
10618 /* throw exception */
10619 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10621 g_free (branch_positions);
10622 ret = mono_mb_create_method (mb, sig, 4);
10625 /* cache the result */
10627 mono_marshal_lock ();
10628 for (i = 0; i < elem_addr_cache_next; ++i) {
10629 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10630 /* FIXME: free ret */
10631 ret = elem_addr_cache [i].method;
10639 if (elem_addr_cache_next >= elem_addr_cache_size) {
10640 int new_size = elem_addr_cache_size + 4;
10641 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10642 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10643 g_free (elem_addr_cache);
10644 elem_addr_cache = new_array;
10645 elem_addr_cache_size = new_size;
10647 elem_addr_cache [elem_addr_cache_next].rank = rank;
10648 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10649 elem_addr_cache [elem_addr_cache_next].method = ret;
10650 elem_addr_cache_next ++;
10652 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10653 info->d.element_addr.rank = rank;
10654 info->d.element_addr.elem_size = elem_size;
10655 mono_marshal_set_wrapper_info (ret, info);
10657 mono_marshal_unlock ();
10662 mono_marshal_alloc (gulong size)
10667 res = CoTaskMemAlloc (size);
10669 res = g_try_malloc ((gulong)size);
10671 mono_gc_out_of_memory ((gulong)size);
10677 mono_marshal_free (gpointer ptr)
10680 CoTaskMemFree (ptr);
10687 mono_marshal_free_array (gpointer *ptr, int size)
10694 for (i = 0; i < size; i++)
10700 mono_marshal_string_to_utf16 (MonoString *s)
10702 return s ? mono_string_chars (s) : NULL;
10706 mono_marshal_string_to_utf16_copy (MonoString *s)
10711 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10712 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10713 res [mono_string_length (s)] = 0;
10719 * mono_marshal_set_last_error:
10721 * This function is invoked to set the last error value from a P/Invoke call
10722 * which has SetLastError set.
10725 mono_marshal_set_last_error (void)
10728 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10730 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10735 mono_marshal_set_last_error_windows (int error)
10738 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10743 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10744 gpointer dest, gint32 length)
10749 MONO_ARCH_SAVE_REGS;
10751 MONO_CHECK_ARG_NULL (src);
10752 MONO_CHECK_ARG_NULL (dest);
10754 if (src->obj.vtable->klass->rank != 1)
10755 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10756 if (start_index < 0)
10757 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10759 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10760 if (start_index + length > mono_array_length (src))
10761 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10763 element_size = mono_array_element_size (src->obj.vtable->klass);
10765 /* no references should be involved */
10766 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10768 memcpy (dest, source_addr, length * element_size);
10772 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10773 MonoArray *dest, gint32 length)
10778 MONO_ARCH_SAVE_REGS;
10780 MONO_CHECK_ARG_NULL (src);
10781 MONO_CHECK_ARG_NULL (dest);
10783 if (dest->obj.vtable->klass->rank != 1)
10784 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10785 if (start_index < 0)
10786 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10788 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10789 if (start_index + length > mono_array_length (dest))
10790 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10792 element_size = mono_array_element_size (dest->obj.vtable->klass);
10794 /* no references should be involved */
10795 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10797 memcpy (dest_addr, src, length * element_size);
10800 #if NO_UNALIGNED_ACCESS
10801 #define RETURN_UNALIGNED(type, addr) \
10804 memcpy(&val, p + offset, sizeof(val)); \
10807 #define WRITE_UNALIGNED(type, addr, val) \
10808 memcpy(addr, &val, sizeof(type))
10810 #define RETURN_UNALIGNED(type, addr) \
10811 return *(type*)(p + offset);
10812 #define WRITE_UNALIGNED(type, addr, val) \
10813 (*(type *)(addr) = (val))
10817 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10821 MONO_ARCH_SAVE_REGS;
10823 RETURN_UNALIGNED(gpointer, p + offset);
10827 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10831 MONO_ARCH_SAVE_REGS;
10833 return *(unsigned char*)(p + offset);
10837 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10841 MONO_ARCH_SAVE_REGS;
10843 RETURN_UNALIGNED(gint16, p + offset);
10847 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10851 MONO_ARCH_SAVE_REGS;
10853 RETURN_UNALIGNED(gint32, p + offset);
10857 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10861 MONO_ARCH_SAVE_REGS;
10863 RETURN_UNALIGNED(gint64, p + offset);
10867 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10871 MONO_ARCH_SAVE_REGS;
10873 *(unsigned char*)(p + offset) = val;
10877 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10881 MONO_ARCH_SAVE_REGS;
10883 WRITE_UNALIGNED(gpointer, p + offset, val);
10887 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10891 MONO_ARCH_SAVE_REGS;
10893 WRITE_UNALIGNED(gint16, p + offset, val);
10897 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10901 MONO_ARCH_SAVE_REGS;
10903 WRITE_UNALIGNED(gint32, p + offset, val);
10907 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10911 MONO_ARCH_SAVE_REGS;
10913 WRITE_UNALIGNED(gint64, p + offset, val);
10917 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10919 MONO_ARCH_SAVE_REGS;
10924 return mono_string_new (mono_domain_get (), ptr);
10928 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10930 MONO_ARCH_SAVE_REGS;
10933 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10934 g_assert_not_reached ();
10937 return mono_string_new_len (mono_domain_get (), ptr, len);
10942 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10944 MonoDomain *domain = mono_domain_get ();
10948 MONO_ARCH_SAVE_REGS;
10956 return mono_string_new_utf16 (domain, ptr, len);
10960 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10962 MonoDomain *domain = mono_domain_get ();
10964 MONO_ARCH_SAVE_REGS;
10967 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10968 g_assert_not_reached ();
10971 return mono_string_new_utf16 (domain, ptr, len);
10976 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10978 MONO_ARCH_SAVE_REGS;
10980 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10984 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10990 MONO_ARCH_SAVE_REGS;
10992 MONO_CHECK_ARG_NULL (rtype);
10994 type = rtype->type;
10995 klass = mono_class_from_mono_type (type);
10996 if (!mono_class_init (klass))
10997 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10999 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
11001 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11003 MonoException *exc;
11005 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11006 exc = mono_get_exception_argument ("t", msg);
11008 mono_raise_exception (exc);
11012 return mono_class_native_size (klass, NULL);
11016 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11018 MonoMethod *method;
11021 MONO_ARCH_SAVE_REGS;
11023 MONO_CHECK_ARG_NULL (obj);
11024 MONO_CHECK_ARG_NULL (dst);
11026 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11030 pa [2] = &delete_old;
11032 mono_runtime_invoke (method, NULL, pa, NULL);
11036 ptr_to_structure (gpointer src, MonoObject *dst)
11038 MonoMethod *method;
11041 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11046 mono_runtime_invoke (method, NULL, pa, NULL);
11050 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11054 MONO_ARCH_SAVE_REGS;
11056 MONO_CHECK_ARG_NULL (src);
11057 MONO_CHECK_ARG_NULL (dst);
11059 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11061 if (t->type == MONO_TYPE_VALUETYPE) {
11062 MonoException *exc;
11065 tmp = g_strdup_printf ("Destination is a boxed value type.");
11066 exc = mono_get_exception_argument ("dst", tmp);
11069 mono_raise_exception (exc);
11073 ptr_to_structure (src, dst);
11077 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11080 MonoDomain *domain = mono_domain_get ();
11083 MONO_ARCH_SAVE_REGS;
11085 MONO_CHECK_ARG_NULL (src);
11086 MONO_CHECK_ARG_NULL (type);
11088 klass = mono_class_from_mono_type (type->type);
11089 if (!mono_class_init (klass))
11090 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11092 res = mono_object_new (domain, klass);
11094 ptr_to_structure (src, res);
11100 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11102 MonoMarshalType *info;
11105 int match_index = -1;
11107 MONO_ARCH_SAVE_REGS;
11109 MONO_CHECK_ARG_NULL (type);
11110 MONO_CHECK_ARG_NULL (field_name);
11112 fname = mono_string_to_utf8 (field_name);
11113 klass = mono_class_from_mono_type (type->type);
11114 if (!mono_class_init (klass))
11115 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11117 while (klass && match_index == -1) {
11118 MonoClassField* field;
11120 gpointer iter = NULL;
11121 while ((field = mono_class_get_fields (klass, &iter))) {
11122 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11124 if (!strcmp (fname, mono_field_get_name (field))) {
11131 if (match_index == -1)
11132 klass = klass->parent;
11137 if(match_index == -1) {
11138 MonoException* exc;
11141 /* Get back original class instance */
11142 klass = mono_class_from_mono_type (type->type);
11144 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11145 exc = mono_get_exception_argument ("fieldName", tmp);
11148 mono_raise_exception ((MonoException*)exc);
11151 info = mono_marshal_load_type_info (klass);
11152 return info->fields [match_index].offset;
11156 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11161 tres = mono_string_to_utf8 (string);
11165 len = strlen (tres) + 1;
11166 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11167 memcpy (ret, tres, len);
11172 return mono_string_to_utf8 (string);
11177 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11179 MONO_ARCH_SAVE_REGS;
11181 if (string == NULL)
11184 #ifdef TARGET_WIN32
11185 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11186 ((mono_string_length (string) + 1) * 2);
11188 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11190 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11191 res [mono_string_length (string)] = 0;
11197 mono_struct_delete_old (MonoClass *klass, char *ptr)
11199 MonoMarshalType *info;
11202 info = mono_marshal_load_type_info (klass);
11204 for (i = 0; i < info->num_fields; i++) {
11205 MonoMarshalNative ntype;
11206 MonoMarshalConv conv;
11207 MonoType *ftype = info->fields [i].field->type;
11210 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11213 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11214 klass->unicode, &conv);
11216 cpos = ptr + info->fields [i].offset;
11219 case MONO_MARSHAL_CONV_NONE:
11220 if (MONO_TYPE_ISSTRUCT (ftype)) {
11221 mono_struct_delete_old (ftype->data.klass, cpos);
11225 case MONO_MARSHAL_CONV_STR_LPWSTR:
11226 /* We assume this field points inside a MonoString */
11228 case MONO_MARSHAL_CONV_STR_LPTSTR:
11229 #ifdef TARGET_WIN32
11230 /* We assume this field points inside a MonoString
11234 case MONO_MARSHAL_CONV_STR_LPSTR:
11235 case MONO_MARSHAL_CONV_STR_BSTR:
11236 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11237 case MONO_MARSHAL_CONV_STR_TBSTR:
11238 mono_marshal_free (*(gpointer *)cpos);
11248 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11252 MONO_ARCH_SAVE_REGS;
11254 MONO_CHECK_ARG_NULL (src);
11255 MONO_CHECK_ARG_NULL (type);
11257 klass = mono_class_from_mono_type (type->type);
11258 if (!mono_class_init (klass))
11259 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11261 mono_struct_delete_old (klass, (char *)src);
11265 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11269 MONO_ARCH_SAVE_REGS;
11271 if ((gulong)size == 0)
11272 /* This returns a valid pointer for size 0 on MS.NET */
11276 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11278 res = g_try_malloc ((gulong)size);
11281 mono_gc_out_of_memory ((gulong)size);
11287 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11292 mono_gc_out_of_memory ((gulong)size);
11297 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11299 res = g_try_realloc (ptr, (gulong)size);
11302 mono_gc_out_of_memory ((gulong)size);
11308 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11310 MONO_ARCH_SAVE_REGS;
11320 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11322 MONO_ARCH_SAVE_REGS;
11325 return CoTaskMemAlloc (size);
11327 return g_try_malloc ((gulong)size);
11332 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11334 MONO_ARCH_SAVE_REGS;
11337 CoTaskMemFree (ptr);
11344 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11346 MONO_ARCH_SAVE_REGS;
11349 return CoTaskMemRealloc (ptr, size);
11351 return g_try_realloc (ptr, (gulong)size);
11356 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11358 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11362 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11364 MonoClass *klass = mono_type_get_class (type->type);
11365 if (!mono_class_init (klass))
11366 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11368 return mono_ftnptr_to_delegate (klass, ftn);
11372 * mono_marshal_is_loading_type_info:
11374 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11378 mono_marshal_is_loading_type_info (MonoClass *klass)
11380 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11382 return g_slist_find (loads_list, klass) != NULL;
11386 * mono_marshal_load_type_info:
11388 * Initialize klass->marshal_info using information from metadata. This function can
11389 * recursively call itself, and the caller is responsible to avoid that by calling
11390 * mono_marshal_is_loading_type_info () beforehand.
11392 * LOCKING: Acquires the loader lock.
11395 mono_marshal_load_type_info (MonoClass* klass)
11398 guint32 native_size = 0, min_align = 1, packing;
11399 MonoMarshalType *info;
11400 MonoClassField* field;
11403 GSList *loads_list;
11405 g_assert (klass != NULL);
11407 if (klass->marshal_info)
11408 return klass->marshal_info;
11410 if (!klass->inited)
11411 mono_class_init (klass);
11413 mono_loader_lock ();
11415 if (klass->marshal_info) {
11416 mono_loader_unlock ();
11417 return klass->marshal_info;
11421 * This function can recursively call itself, so we keep the list of classes which are
11422 * under initialization in a TLS list.
11424 g_assert (!mono_marshal_is_loading_type_info (klass));
11425 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11426 loads_list = g_slist_prepend (loads_list, klass);
11427 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11430 while ((field = mono_class_get_fields (klass, &iter))) {
11431 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11433 if (mono_field_is_deleted (field))
11438 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11440 /* The mempool is protected by the loader lock */
11441 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11442 info->num_fields = count;
11444 /* Try to find a size for this type in metadata */
11445 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11447 if (klass->parent) {
11448 int parent_size = mono_class_native_size (klass->parent, NULL);
11450 /* Add parent size to real size */
11451 native_size += parent_size;
11452 info->native_size = parent_size;
11455 packing = klass->packing_size ? klass->packing_size : 8;
11458 while ((field = mono_class_get_fields (klass, &iter))) {
11462 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11465 if (mono_field_is_deleted (field))
11467 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11468 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11469 NULL, NULL, &info->fields [j].mspec);
11471 info->fields [j].field = field;
11473 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11474 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11475 /* This field is a hack inserted by MCS to empty structures */
11480 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11481 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11482 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11483 &align, TRUE, klass->unicode);
11484 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11485 min_align = MAX (align, min_align);
11486 info->fields [j].offset = info->native_size;
11487 info->fields [j].offset += align - 1;
11488 info->fields [j].offset &= ~(align - 1);
11489 info->native_size = info->fields [j].offset + size;
11491 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11492 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11493 &align, TRUE, klass->unicode);
11494 min_align = packing;
11495 info->fields [j].offset = field->offset - sizeof (MonoObject);
11496 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11502 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11503 info->native_size = MAX (native_size, info->native_size);
11505 * If the provided Size is equal or larger than the calculated size, and there
11506 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11508 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
11509 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11513 if (info->native_size & (min_align - 1)) {
11514 info->native_size += min_align - 1;
11515 info->native_size &= ~(min_align - 1);
11518 info->min_align = min_align;
11520 /* Update the class's blittable info, if the layouts don't match */
11521 if (info->native_size != mono_class_value_size (klass, NULL))
11522 klass->blittable = FALSE;
11524 /* If this is an array type, ensure that we have element info */
11525 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11526 mono_marshal_load_type_info (klass->element_class);
11529 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11530 loads_list = g_slist_remove (loads_list, klass);
11531 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11533 /*We do double-checking locking on marshal_info */
11534 mono_memory_barrier ();
11536 klass->marshal_info = info;
11538 mono_loader_unlock ();
11540 return klass->marshal_info;
11544 * mono_class_native_size:
11547 * Returns: the native size of an object instance (when marshaled
11548 * to unmanaged code)
11551 mono_class_native_size (MonoClass *klass, guint32 *align)
11553 if (!klass->marshal_info) {
11554 if (mono_marshal_is_loading_type_info (klass)) {
11559 mono_marshal_load_type_info (klass);
11564 *align = klass->marshal_info->min_align;
11566 return klass->marshal_info->native_size;
11569 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11570 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11571 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11572 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11575 * mono_type_native_stack_size:
11576 * @t: the type to return the size it uses on the stack
11578 * Returns: the number of bytes required to hold an instance of this
11579 * type on the native stack
11582 mono_type_native_stack_size (MonoType *t, guint32 *align)
11586 g_assert (t != NULL);
11592 *align = sizeof (gpointer);
11593 return sizeof (gpointer);
11597 case MONO_TYPE_BOOLEAN:
11598 case MONO_TYPE_CHAR:
11609 case MONO_TYPE_STRING:
11610 case MONO_TYPE_OBJECT:
11611 case MONO_TYPE_CLASS:
11612 case MONO_TYPE_SZARRAY:
11613 case MONO_TYPE_PTR:
11614 case MONO_TYPE_FNPTR:
11615 case MONO_TYPE_ARRAY:
11616 *align = sizeof (gpointer);
11617 return sizeof (gpointer);
11622 *align = ALIGNMENT (gdouble);
11626 *align = ALIGNMENT (glong);
11628 case MONO_TYPE_GENERICINST:
11629 if (!mono_type_generic_inst_is_valuetype (t)) {
11630 *align = sizeof (gpointer);
11631 return sizeof (gpointer);
11634 case MONO_TYPE_TYPEDBYREF:
11635 case MONO_TYPE_VALUETYPE: {
11637 MonoClass *klass = mono_class_from_mono_type (t);
11639 if (klass->enumtype)
11640 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11642 size = mono_class_native_size (klass, align);
11643 *align = *align + 3;
11653 g_error ("type 0x%02x unknown", t->type);
11659 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11660 gboolean as_field, gboolean unicode)
11662 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11665 switch (native_type) {
11666 case MONO_NATIVE_BOOLEAN:
11669 case MONO_NATIVE_I1:
11670 case MONO_NATIVE_U1:
11673 case MONO_NATIVE_I2:
11674 case MONO_NATIVE_U2:
11675 case MONO_NATIVE_VARIANTBOOL:
11678 case MONO_NATIVE_I4:
11679 case MONO_NATIVE_U4:
11680 case MONO_NATIVE_ERROR:
11683 case MONO_NATIVE_I8:
11684 case MONO_NATIVE_U8:
11685 *align = ALIGNMENT(guint64);
11687 case MONO_NATIVE_R4:
11690 case MONO_NATIVE_R8:
11691 *align = ALIGNMENT(double);
11693 case MONO_NATIVE_INT:
11694 case MONO_NATIVE_UINT:
11695 case MONO_NATIVE_LPSTR:
11696 case MONO_NATIVE_LPWSTR:
11697 case MONO_NATIVE_LPTSTR:
11698 case MONO_NATIVE_BSTR:
11699 case MONO_NATIVE_ANSIBSTR:
11700 case MONO_NATIVE_TBSTR:
11701 case MONO_NATIVE_LPARRAY:
11702 case MONO_NATIVE_SAFEARRAY:
11703 case MONO_NATIVE_IUNKNOWN:
11704 case MONO_NATIVE_IDISPATCH:
11705 case MONO_NATIVE_INTERFACE:
11706 case MONO_NATIVE_ASANY:
11707 case MONO_NATIVE_FUNC:
11708 case MONO_NATIVE_LPSTRUCT:
11709 *align = ALIGNMENT(gpointer);
11710 return sizeof (gpointer);
11711 case MONO_NATIVE_STRUCT:
11712 klass = mono_class_from_mono_type (type);
11713 if (klass == mono_defaults.object_class &&
11714 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11718 return mono_class_native_size (klass, align);
11719 case MONO_NATIVE_BYVALTSTR: {
11720 int esize = unicode ? 2: 1;
11723 return mspec->data.array_data.num_elem * esize;
11725 case MONO_NATIVE_BYVALARRAY: {
11726 // FIXME: Have to consider ArraySubType
11728 klass = mono_class_from_mono_type (type);
11729 if (klass->element_class == mono_defaults.char_class) {
11730 esize = unicode ? 2 : 1;
11733 esize = mono_class_native_size (klass->element_class, align);
11736 return mspec->data.array_data.num_elem * esize;
11738 case MONO_NATIVE_CUSTOM:
11739 *align = sizeof (gpointer);
11740 return sizeof (gpointer);
11742 case MONO_NATIVE_CURRENCY:
11743 case MONO_NATIVE_VBBYREFSTR:
11745 g_error ("native type %02x not implemented", native_type);
11748 g_assert_not_reached ();
11753 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11761 t = &o->vtable->klass->byval_arg;
11765 case MONO_TYPE_PTR:
11768 case MONO_TYPE_BOOLEAN:
11771 case MONO_TYPE_CHAR:
11776 return mono_object_unbox (o);
11778 case MONO_TYPE_STRING:
11779 switch (string_encoding) {
11780 case MONO_NATIVE_LPWSTR:
11781 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11783 case MONO_NATIVE_LPSTR:
11784 return mono_string_to_lpstr ((MonoString*)o);
11787 g_warning ("marshaling conversion %d not implemented", string_encoding);
11788 g_assert_not_reached ();
11791 case MONO_TYPE_CLASS:
11792 case MONO_TYPE_VALUETYPE: {
11793 MonoMethod *method;
11796 MonoBoolean delete_old = FALSE;
11798 klass = t->data.klass;
11800 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11803 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11804 klass->blittable || klass->enumtype))
11805 return mono_object_unbox (o);
11807 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11809 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11810 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11814 pa [2] = &delete_old;
11816 mono_runtime_invoke (method, NULL, pa, NULL);
11823 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11829 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11837 t = &o->vtable->klass->byval_arg;
11839 case MONO_TYPE_STRING:
11840 switch (string_encoding) {
11841 case MONO_NATIVE_LPWSTR:
11842 case MONO_NATIVE_LPSTR:
11843 mono_marshal_free (ptr);
11846 g_warning ("marshaling conversion %d not implemented", string_encoding);
11847 g_assert_not_reached ();
11850 case MONO_TYPE_CLASS:
11851 case MONO_TYPE_VALUETYPE: {
11852 klass = t->data.klass;
11854 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11855 klass->blittable || klass->enumtype))
11858 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11859 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11865 mono_runtime_invoke (method, NULL, pa, NULL);
11868 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11869 mono_struct_delete_old (klass, ptr);
11872 mono_marshal_free (ptr);
11881 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11883 MonoMethodSignature *sig, *csig;
11884 MonoMethodBuilder *mb;
11888 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11889 mb->method->slot = -1;
11891 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11892 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11894 sig = mono_method_signature (method);
11895 csig = signature_dup (method->klass->image, sig);
11896 csig->generic_param_count = 0;
11898 mono_mb_emit_ldarg (mb, 0);
11899 for (i = 0; i < csig->param_count; i++)
11900 mono_mb_emit_ldarg (mb, i + 1);
11901 mono_mb_emit_managed_call (mb, method, NULL);
11902 mono_mb_emit_byte (mb, CEE_RET);
11904 /* We can corlib internal methods */
11905 mb->skip_visibility = TRUE;
11907 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11915 * The mono_win32_compat_* functions are implementations of inline
11916 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11917 * although not exported by kernel32.
11919 * We map the appropiate kernel32 entries to these functions using
11920 * dllmaps declared in the global etc/mono/config.
11924 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11926 if (!dest || !source)
11929 memcpy (dest, source, length);
11933 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11935 memset (dest, fill, length);
11939 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11941 if (!dest || !source)
11944 memmove (dest, source, length);
11948 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11950 memset (dest, 0, length);
11954 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11959 for (i = 0; i < len; ++i)
11963 g_assert (i < len);
11966 while (byte && !(byte & 1))
11968 g_assert (byte == 1);
11971 *bitmask = buf [i];
11975 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11977 MonoMethodBuilder *mb;
11978 MonoMethodSignature *sig, *csig;
11979 MonoExceptionClause *clause;
11984 int i, param_count, sig_size, pos_leave;
11988 klass = method->klass;
11989 image = method->klass->image;
11990 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11992 if ((res = mono_marshal_find_in_cache (cache, method)))
11995 sig = mono_method_signature (method);
11996 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11998 /* add "this" and exception param */
11999 param_count = sig->param_count + sig->hasthis + 1;
12001 /* dup & extend signature */
12002 csig = mono_metadata_signature_alloc (image, param_count);
12003 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12004 memcpy (csig, sig, sig_size);
12005 csig->param_count = param_count;
12008 csig->call_convention = MONO_CALL_DEFAULT;
12010 if (sig->hasthis) {
12012 csig->params [0] = &klass->byval_arg;
12013 /* move params up by one */
12014 for (i = 0; i < sig->param_count; i++)
12015 csig->params [i + 1] = sig->params [i];
12018 /* setup exception param as byref+[out] */
12019 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12020 &mono_defaults.exception_class->byval_arg);
12021 csig->params [param_count - 1]->byref = 1;
12022 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12024 /* convert struct return to object */
12025 if (MONO_TYPE_ISSTRUCT (sig->ret))
12026 csig->ret = &mono_defaults.object_class->byval_arg;
12028 /* local 0 (temp for exception object) */
12029 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12031 /* local 1 (temp for result) */
12032 if (!MONO_TYPE_IS_VOID (sig->ret))
12033 mono_mb_add_local (mb, sig->ret);
12035 /* clear exception arg */
12036 mono_mb_emit_ldarg (mb, param_count - 1);
12037 mono_mb_emit_byte (mb, CEE_LDNULL);
12038 mono_mb_emit_byte (mb, CEE_STIND_REF);
12041 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12042 clause->try_offset = mono_mb_get_label (mb);
12044 /* push method's args */
12045 for (i = 0; i < param_count - 1; i++) {
12049 mono_mb_emit_ldarg (mb, i);
12051 /* get the byval type of the param */
12052 klass = mono_class_from_mono_type (csig->params [i]);
12053 type = &klass->byval_arg;
12055 /* unbox struct args */
12056 if (MONO_TYPE_ISSTRUCT (type)) {
12057 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12059 /* byref args & and the "this" arg must remain a ptr.
12060 Otherwise make a copy of the value type */
12061 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12062 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12064 csig->params [i] = &mono_defaults.object_class->byval_arg;
12069 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12070 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12072 mono_mb_emit_op (mb, CEE_CALL, method);
12074 /* save result at local 1 */
12075 if (!MONO_TYPE_IS_VOID (sig->ret))
12076 mono_mb_emit_stloc (mb, 1);
12078 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12081 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12082 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12083 clause->data.catch_class = mono_defaults.object_class;
12085 clause->handler_offset = mono_mb_get_label (mb);
12087 /* store exception at local 0 */
12088 mono_mb_emit_stloc (mb, 0);
12089 mono_mb_emit_ldarg (mb, param_count - 1);
12090 mono_mb_emit_ldloc (mb, 0);
12091 mono_mb_emit_byte (mb, CEE_STIND_REF);
12092 mono_mb_emit_branch (mb, CEE_LEAVE);
12094 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12096 mono_mb_set_clauses (mb, 1, clause);
12098 mono_mb_patch_branch (mb, pos_leave);
12101 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12102 mono_mb_emit_ldloc (mb, 1);
12104 /* box the return value */
12105 if (MONO_TYPE_ISSTRUCT (sig->ret))
12106 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12109 mono_mb_emit_byte (mb, CEE_RET);
12111 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12118 * mono_marshal_free_dynamic_wrappers:
12120 * Free wrappers of the dynamic method METHOD.
12123 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12125 MonoImage *image = method->klass->image;
12127 g_assert (method->dynamic);
12129 /* This could be called during shutdown */
12130 if (marshal_mutex_initialized)
12131 mono_marshal_lock ();
12133 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12134 * they could be shared with other methods ?
12136 if (image->runtime_invoke_direct_cache)
12137 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
12138 if (image->delegate_bound_static_invoke_cache)
12139 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
12140 if (image->delegate_abstract_invoke_cache)
12141 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
12143 if (marshal_mutex_initialized)
12144 mono_marshal_unlock ();
12148 * mono_marshal_free_inflated_wrappers:
12150 * Free wrappers of the inflated method METHOD.
12154 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
12156 SignatureMethodPair *pair = (SignatureMethodPair*)key;
12157 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
12159 return mono_metadata_signature_equal (pair->sig, sig);
12163 mono_marshal_free_inflated_wrappers (MonoMethod *method)
12165 MonoMethodSignature *sig = method->signature;
12167 g_assert (method->is_inflated);
12169 /* Ignore calls occuring late during cleanup. */
12170 if (!marshal_mutex_initialized)
12173 mono_marshal_lock ();
12175 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12176 * they could be shared with other methods ?
12180 * indexed by MonoMethodSignature
12182 /* FIXME: This could remove unrelated wrappers as well */
12183 if (sig && method->klass->image->delegate_begin_invoke_cache)
12184 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12185 if (sig && method->klass->image->delegate_end_invoke_cache)
12186 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12187 if (sig && method->klass->image->delegate_invoke_cache)
12188 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12189 if (sig && method->klass->image->runtime_invoke_cache)
12190 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12193 * indexed by SignatureMethodPair
12195 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12196 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12197 signature_method_pair_matches_signature, (gpointer)sig);
12199 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12200 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12201 signature_method_pair_matches_signature, (gpointer)sig);
12204 * indexed by MonoMethod pointers
12206 if (method->klass->image->runtime_invoke_direct_cache)
12207 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12208 if (method->klass->image->managed_wrapper_cache)
12209 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12210 if (method->klass->image->native_wrapper_cache)
12211 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12212 if (method->klass->image->remoting_invoke_cache)
12213 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12214 if (method->klass->image->synchronized_cache)
12215 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12216 if (method->klass->image->unbox_wrapper_cache)
12217 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12218 if (method->klass->image->cominterop_invoke_cache)
12219 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12220 if (method->klass->image->cominterop_wrapper_cache)
12221 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12222 if (method->klass->image->thunk_invoke_cache)
12223 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12225 mono_marshal_unlock ();