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:
1470 return mono_string_from_utf16;
1472 return mono_string_new_wrapper;
1474 case MONO_MARSHAL_CONV_LPSTR_STR:
1475 return mono_string_new_wrapper;
1476 case MONO_MARSHAL_CONV_STR_LPTSTR:
1478 return mono_marshal_string_to_utf16;
1480 return mono_string_to_lpstr;
1482 case MONO_MARSHAL_CONV_STR_LPSTR:
1483 return mono_string_to_lpstr;
1484 case MONO_MARSHAL_CONV_STR_BSTR:
1485 return mono_string_to_bstr;
1486 case MONO_MARSHAL_CONV_BSTR_STR:
1487 return mono_string_from_bstr;
1488 case MONO_MARSHAL_CONV_STR_TBSTR:
1489 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1490 return mono_string_to_ansibstr;
1491 case MONO_MARSHAL_CONV_SB_LPSTR:
1492 return mono_string_builder_to_utf8;
1493 case MONO_MARSHAL_CONV_SB_LPTSTR:
1495 return mono_string_builder_to_utf16;
1497 return mono_string_builder_to_utf8;
1499 case MONO_MARSHAL_CONV_SB_LPWSTR:
1500 return mono_string_builder_to_utf16;
1501 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1502 return mono_array_to_savearray;
1503 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1504 return mono_array_to_lparray;
1505 case MONO_MARSHAL_FREE_LPARRAY:
1506 return mono_free_lparray;
1507 case MONO_MARSHAL_CONV_DEL_FTN:
1508 return mono_delegate_to_ftnptr;
1509 case MONO_MARSHAL_CONV_FTN_DEL:
1510 return mono_ftnptr_to_delegate;
1511 case MONO_MARSHAL_CONV_LPSTR_SB:
1512 return mono_string_utf8_to_builder;
1513 case MONO_MARSHAL_CONV_LPTSTR_SB:
1515 return mono_string_utf16_to_builder;
1517 return mono_string_utf8_to_builder;
1519 case MONO_MARSHAL_CONV_LPWSTR_SB:
1520 return mono_string_utf16_to_builder;
1521 case MONO_MARSHAL_FREE_ARRAY:
1522 return mono_marshal_free_array;
1523 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1524 return mono_string_to_byvalstr;
1525 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1526 return mono_string_to_byvalwstr;
1528 g_assert_not_reached ();
1535 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1540 case MONO_MARSHAL_CONV_BOOL_I4:
1541 mono_mb_emit_ldloc (mb, 1);
1542 mono_mb_emit_ldloc (mb, 0);
1543 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1544 mono_mb_emit_byte (mb, CEE_STIND_I4);
1546 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_ldloc (mb, 0);
1549 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1550 mono_mb_emit_byte (mb, CEE_NEG);
1551 mono_mb_emit_byte (mb, CEE_STIND_I2);
1553 case MONO_MARSHAL_CONV_STR_LPWSTR:
1554 case MONO_MARSHAL_CONV_STR_LPSTR:
1555 case MONO_MARSHAL_CONV_STR_LPTSTR:
1556 case MONO_MARSHAL_CONV_STR_BSTR:
1557 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1558 case MONO_MARSHAL_CONV_STR_TBSTR: {
1561 /* free space if free == true */
1562 mono_mb_emit_ldloc (mb, 2);
1563 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1564 mono_mb_emit_ldloc (mb, 1);
1565 mono_mb_emit_byte (mb, CEE_LDIND_I);
1566 mono_mb_emit_icall (mb, g_free);
1567 mono_mb_patch_short_branch (mb, pos);
1569 mono_mb_emit_ldloc (mb, 1);
1570 mono_mb_emit_ldloc (mb, 0);
1571 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1572 mono_mb_emit_icall (mb, conv_to_icall (conv));
1573 mono_mb_emit_byte (mb, CEE_STIND_I);
1576 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1577 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1578 case MONO_MARSHAL_CONV_DEL_FTN:
1579 mono_mb_emit_ldloc (mb, 1);
1580 mono_mb_emit_ldloc (mb, 0);
1581 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1582 mono_mb_emit_icall (mb, conv_to_icall (conv));
1583 mono_mb_emit_byte (mb, CEE_STIND_I);
1585 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1586 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1589 mono_mb_emit_ldloc (mb, 1); /* dst */
1590 mono_mb_emit_ldloc (mb, 0);
1591 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1592 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1593 mono_mb_emit_icall (mb, conv_to_icall (conv));
1596 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1597 MonoClass *eklass = NULL;
1600 if (type->type == MONO_TYPE_SZARRAY) {
1601 eklass = type->data.klass;
1603 g_assert_not_reached ();
1606 if (eklass->valuetype)
1607 esize = mono_class_native_size (eklass, NULL);
1609 esize = sizeof (gpointer);
1611 mono_mb_emit_ldloc (mb, 0);
1612 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1613 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1615 if (eklass->blittable) {
1616 mono_mb_emit_ldloc (mb, 1);
1617 mono_mb_emit_ldloc (mb, 0);
1618 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1619 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1620 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1621 mono_mb_emit_byte (mb, CEE_PREFIX1);
1622 mono_mb_emit_byte (mb, CEE_CPBLK);
1624 int array_var, src_var, dst_var, index_var;
1625 guint32 label2, label3;
1627 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1628 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1629 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1632 mono_mb_emit_ldloc (mb, 0);
1633 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1634 mono_mb_emit_stloc (mb, array_var);
1636 /* save the old src pointer */
1637 mono_mb_emit_ldloc (mb, 0);
1638 mono_mb_emit_stloc (mb, src_var);
1639 /* save the old dst pointer */
1640 mono_mb_emit_ldloc (mb, 1);
1641 mono_mb_emit_stloc (mb, dst_var);
1643 /* Emit marshalling loop */
1644 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1645 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1646 mono_mb_emit_stloc (mb, index_var);
1649 label2 = mono_mb_get_label (mb);
1650 mono_mb_emit_ldloc (mb, index_var);
1651 mono_mb_emit_ldloc (mb, array_var);
1652 mono_mb_emit_byte (mb, CEE_LDLEN);
1653 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1656 mono_mb_emit_ldloc (mb, array_var);
1657 mono_mb_emit_ldloc (mb, index_var);
1658 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1659 mono_mb_emit_stloc (mb, 0);
1661 /* dst is already set */
1663 /* Do the conversion */
1664 emit_struct_conv (mb, eklass, FALSE);
1667 mono_mb_emit_add_to_local (mb, index_var, 1);
1669 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1671 mono_mb_patch_branch (mb, label3);
1673 /* restore the old src pointer */
1674 mono_mb_emit_ldloc (mb, src_var);
1675 mono_mb_emit_stloc (mb, 0);
1676 /* restore the old dst pointer */
1677 mono_mb_emit_ldloc (mb, dst_var);
1678 mono_mb_emit_stloc (mb, 1);
1681 mono_mb_patch_branch (mb, pos);
1684 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1685 mono_mb_emit_ldloc (mb, 0);
1686 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1687 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1692 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1693 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1694 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1695 mono_mb_patch_short_branch (mb, pos);
1698 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1699 int src_var, dst_var;
1701 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1702 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1704 mono_mb_emit_ldloc (mb, 0);
1705 mono_mb_emit_byte (mb, CEE_LDIND_I);
1706 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1708 /* save the old src pointer */
1709 mono_mb_emit_ldloc (mb, 0);
1710 mono_mb_emit_stloc (mb, src_var);
1711 /* save the old dst pointer */
1712 mono_mb_emit_ldloc (mb, 1);
1713 mono_mb_emit_stloc (mb, dst_var);
1715 /* src = pointer to object data */
1716 mono_mb_emit_ldloc (mb, 0);
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 mono_mb_emit_icon (mb, sizeof (MonoObject));
1719 mono_mb_emit_byte (mb, CEE_ADD);
1720 mono_mb_emit_stloc (mb, 0);
1722 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1724 /* restore the old src pointer */
1725 mono_mb_emit_ldloc (mb, src_var);
1726 mono_mb_emit_stloc (mb, 0);
1727 /* restore the old dst pointer */
1728 mono_mb_emit_ldloc (mb, dst_var);
1729 mono_mb_emit_stloc (mb, 1);
1731 mono_mb_patch_branch (mb, pos);
1736 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1737 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1738 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1739 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1741 #endif /* DISABLE_COM */
1743 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1744 int dar_release_slot, pos;
1746 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1749 * The following is ifdefed-out, because I have no way of doing the
1750 * DangerousRelease when destroying the structure
1753 /* set release = false */
1754 mono_mb_emit_icon (mb, 0);
1755 mono_mb_emit_stloc (mb, dar_release_slot);
1756 if (!sh_dangerous_add_ref)
1757 init_safe_handle ();
1759 /* safehandle.DangerousAddRef (ref release) */
1760 mono_mb_emit_ldloc (mb, 0); /* the source */
1761 mono_mb_emit_byte (mb, CEE_LDIND_I);
1762 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1763 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1765 mono_mb_emit_ldloc (mb, 0);
1766 mono_mb_emit_byte (mb, CEE_LDIND_I);
1767 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1768 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1769 mono_mb_patch_branch (mb, pos);
1771 /* Pull the handle field from SafeHandle */
1772 mono_mb_emit_ldloc (mb, 1);
1773 mono_mb_emit_ldloc (mb, 0);
1774 mono_mb_emit_byte (mb, CEE_LDIND_I);
1775 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1776 mono_mb_emit_byte (mb, CEE_LDIND_I);
1777 mono_mb_emit_byte (mb, CEE_STIND_I);
1781 case MONO_MARSHAL_CONV_HANDLEREF: {
1782 mono_mb_emit_ldloc (mb, 1);
1783 mono_mb_emit_ldloc (mb, 0);
1784 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1785 mono_mb_emit_byte (mb, CEE_ADD);
1786 mono_mb_emit_byte (mb, CEE_LDIND_I);
1787 mono_mb_emit_byte (mb, CEE_STIND_I);
1792 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1793 MonoException *exc = mono_get_exception_not_implemented (msg);
1794 g_warning ("%s", msg);
1796 mono_raise_exception (exc);
1802 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1803 MonoMarshalNative string_encoding)
1805 MonoMarshalType *info;
1809 emit_struct_conv(mb, klass->parent, to_object);
1811 info = mono_marshal_load_type_info (klass);
1813 if (info->native_size == 0)
1816 if (klass->blittable) {
1817 int msize = mono_class_value_size (klass, NULL);
1818 g_assert (msize == info->native_size);
1819 mono_mb_emit_ldloc (mb, 1);
1820 mono_mb_emit_ldloc (mb, 0);
1821 mono_mb_emit_icon (mb, msize);
1822 mono_mb_emit_byte (mb, CEE_PREFIX1);
1823 mono_mb_emit_byte (mb, CEE_CPBLK);
1825 mono_mb_emit_add_to_local (mb, 0, msize);
1826 mono_mb_emit_add_to_local (mb, 1, msize);
1830 if (klass != mono_defaults.safehandle_class) {
1831 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1832 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1833 mono_type_full_name (&klass->byval_arg));
1834 mono_mb_emit_exception_marshal_directive (mb, msg);
1839 for (i = 0; i < info->num_fields; i++) {
1840 MonoMarshalNative ntype;
1841 MonoMarshalConv conv;
1842 MonoType *ftype = info->fields [i].field->type;
1845 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1847 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1850 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1853 msize = klass->instance_size - info->fields [i].field->offset;
1854 usize = info->native_size - info->fields [i].offset;
1856 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1857 usize = info->fields [i + 1].offset - info->fields [i].offset;
1860 if (klass != mono_defaults.safehandle_class){
1862 * FIXME: Should really check for usize==0 and msize>0, but we apply
1863 * the layout to the managed structure as well.
1866 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1867 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1868 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1869 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1870 "reference field at the same offset as another field.",
1871 mono_type_full_name (&klass->byval_arg));
1876 case MONO_MARSHAL_CONV_NONE: {
1879 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1880 ftype->type == MONO_TYPE_U) {
1881 mono_mb_emit_ldloc (mb, 1);
1882 mono_mb_emit_ldloc (mb, 0);
1883 mono_mb_emit_byte (mb, CEE_LDIND_I);
1884 mono_mb_emit_byte (mb, CEE_STIND_I);
1895 case MONO_TYPE_BOOLEAN:
1898 case MONO_TYPE_CHAR:
1904 mono_mb_emit_ldloc (mb, 1);
1905 mono_mb_emit_ldloc (mb, 0);
1906 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1908 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1909 mono_mb_emit_byte (mb, CEE_STIND_I2);
1911 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1912 mono_mb_emit_byte (mb, CEE_STIND_I1);
1915 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1916 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1919 case MONO_TYPE_VALUETYPE: {
1920 int src_var, dst_var;
1922 if (ftype->data.klass->enumtype) {
1923 ftype = mono_class_enum_basetype (ftype->data.klass);
1927 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1928 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1930 /* save the old src pointer */
1931 mono_mb_emit_ldloc (mb, 0);
1932 mono_mb_emit_stloc (mb, src_var);
1933 /* save the old dst pointer */
1934 mono_mb_emit_ldloc (mb, 1);
1935 mono_mb_emit_stloc (mb, dst_var);
1937 emit_struct_conv (mb, ftype->data.klass, to_object);
1939 /* restore the old src pointer */
1940 mono_mb_emit_ldloc (mb, src_var);
1941 mono_mb_emit_stloc (mb, 0);
1942 /* restore the old dst pointer */
1943 mono_mb_emit_ldloc (mb, dst_var);
1944 mono_mb_emit_stloc (mb, 1);
1947 case MONO_TYPE_OBJECT: {
1948 mono_init_com_types ();
1950 static MonoMethod *variant_clear = NULL;
1951 static MonoMethod *get_object_for_native_variant = NULL;
1954 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1955 if (!get_object_for_native_variant)
1956 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1957 mono_mb_emit_ldloc (mb, 1);
1958 mono_mb_emit_ldloc (mb, 0);
1959 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1960 mono_mb_emit_byte (mb, CEE_STIND_REF);
1962 mono_mb_emit_ldloc (mb, 0);
1963 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1966 static MonoMethod *get_native_variant_for_object = NULL;
1968 if (!get_native_variant_for_object)
1969 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1971 mono_mb_emit_ldloc (mb, 0);
1972 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1973 mono_mb_emit_ldloc (mb, 1);
1974 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1980 g_warning ("marshaling type %02x not implemented", ftype->type);
1981 g_assert_not_reached ();
1986 int src_var, dst_var;
1988 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1989 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1991 /* save the old src pointer */
1992 mono_mb_emit_ldloc (mb, 0);
1993 mono_mb_emit_stloc (mb, src_var);
1994 /* save the old dst pointer */
1995 mono_mb_emit_ldloc (mb, 1);
1996 mono_mb_emit_stloc (mb, dst_var);
1999 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2001 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2003 /* restore the old src pointer */
2004 mono_mb_emit_ldloc (mb, src_var);
2005 mono_mb_emit_stloc (mb, 0);
2006 /* restore the old dst pointer */
2007 mono_mb_emit_ldloc (mb, dst_var);
2008 mono_mb_emit_stloc (mb, 1);
2013 mono_mb_emit_add_to_local (mb, 0, usize);
2014 mono_mb_emit_add_to_local (mb, 1, msize);
2016 mono_mb_emit_add_to_local (mb, 0, msize);
2017 mono_mb_emit_add_to_local (mb, 1, usize);
2023 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2025 emit_struct_conv_full (mb, klass, to_object, -1);
2029 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2031 /* Call DestroyStructure */
2032 /* FIXME: Only do this if needed */
2033 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2034 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2035 mono_mb_emit_ldloc (mb, struct_var);
2036 mono_mb_emit_icall (mb, mono_struct_delete_old);
2040 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2044 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2045 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2046 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2048 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2049 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2051 mono_mb_emit_icall (mb, checkpoint_func);
2053 mono_mb_patch_branch (mb, pos_noabort);
2057 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2059 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2062 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2066 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2068 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2072 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2074 emit_thread_interrupt_checkpoint (mb);
2077 static MonoAsyncResult *
2078 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2080 MonoMethodMessage *msg;
2081 MonoDelegate *async_callback;
2082 MonoMulticastDelegate *mcast_delegate;
2086 MonoMethod *method = NULL, *method2 = NULL;
2088 g_assert (delegate);
2089 mcast_delegate = (MonoMulticastDelegate *) delegate;
2090 if (mcast_delegate->prev != NULL)
2091 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2093 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2095 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2096 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2098 /* If the target is a proxy, make a direct call. Is proxy's work
2099 // to make the call asynchronous.
2101 MonoAsyncResult *ares;
2103 MonoArray *out_args;
2104 method = delegate->method;
2106 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2107 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2108 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2109 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2110 MONO_OBJECT_SETREF (msg, async_result, ares);
2111 msg->call_type = CallType_BeginInvoke;
2114 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2116 mono_raise_exception ((MonoException *) exc);
2121 klass = delegate->object.vtable->klass;
2123 method = mono_get_delegate_invoke (klass);
2124 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2127 g_assert (method != NULL);
2129 im = mono_get_delegate_invoke (method->klass);
2130 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2132 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2136 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2138 int i, params_var, tmp_var;
2140 /* allocate local (pointer) *params[] */
2141 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2142 /* allocate local (pointer) tmp */
2143 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2145 /* alloate space on stack to store an array of pointers to the arguments */
2146 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2147 mono_mb_emit_byte (mb, CEE_PREFIX1);
2148 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2149 mono_mb_emit_stloc (mb, params_var);
2152 mono_mb_emit_ldloc (mb, params_var);
2153 mono_mb_emit_stloc (mb, tmp_var);
2155 if (save_this && sig->hasthis) {
2156 mono_mb_emit_ldloc (mb, tmp_var);
2157 mono_mb_emit_ldarg_addr (mb, 0);
2158 mono_mb_emit_byte (mb, CEE_STIND_I);
2159 /* tmp = tmp + sizeof (gpointer) */
2160 if (sig->param_count)
2161 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2165 for (i = 0; i < sig->param_count; i++) {
2166 mono_mb_emit_ldloc (mb, tmp_var);
2167 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2168 mono_mb_emit_byte (mb, CEE_STIND_I);
2169 /* tmp = tmp + sizeof (gpointer) */
2170 if (i < (sig->param_count - 1))
2171 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2178 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2182 GString *res = g_string_new ("");
2185 g_string_append (res, prefix);
2186 g_string_append_c (res, '_');
2189 mono_type_get_desc (res, sig->ret, FALSE);
2192 g_string_append (res, "__this__");
2194 for (i = 0; i < sig->param_count; ++i) {
2195 g_string_append_c (res, '_');
2196 mono_type_get_desc (res, sig->params [i], FALSE);
2199 g_string_free (res, FALSE);
2204 * mono_marshal_get_string_encoding:
2206 * Return the string encoding which should be used for a given parameter.
2208 static MonoMarshalNative
2209 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2211 /* First try the parameter marshal info */
2213 if (spec->native == MONO_NATIVE_LPARRAY) {
2214 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2215 return spec->data.array_data.elem_type;
2218 return spec->native;
2222 return MONO_NATIVE_LPSTR;
2224 /* Then try the method level marshal info */
2225 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2226 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2227 return MONO_NATIVE_LPSTR;
2228 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2229 return MONO_NATIVE_LPWSTR;
2230 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2232 return MONO_NATIVE_LPWSTR;
2234 return MONO_NATIVE_LPSTR;
2237 return MONO_NATIVE_LPSTR;
2241 static MonoMarshalConv
2242 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2244 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2247 case MONO_NATIVE_LPWSTR:
2248 return MONO_MARSHAL_CONV_STR_LPWSTR;
2249 case MONO_NATIVE_LPSTR:
2250 case MONO_NATIVE_VBBYREFSTR:
2251 return MONO_MARSHAL_CONV_STR_LPSTR;
2252 case MONO_NATIVE_LPTSTR:
2253 return MONO_MARSHAL_CONV_STR_LPTSTR;
2254 case MONO_NATIVE_BSTR:
2255 return MONO_MARSHAL_CONV_STR_BSTR;
2261 static MonoMarshalConv
2262 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2264 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2267 case MONO_NATIVE_LPWSTR:
2268 return MONO_MARSHAL_CONV_SB_LPWSTR;
2270 case MONO_NATIVE_LPSTR:
2271 return MONO_MARSHAL_CONV_SB_LPSTR;
2273 case MONO_NATIVE_LPTSTR:
2274 return MONO_MARSHAL_CONV_SB_LPTSTR;
2281 static MonoMarshalConv
2282 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2284 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2289 case MONO_NATIVE_LPWSTR:
2291 return MONO_MARSHAL_CONV_LPWSTR_STR;
2292 case MONO_NATIVE_LPSTR:
2293 case MONO_NATIVE_VBBYREFSTR:
2294 return MONO_MARSHAL_CONV_LPSTR_STR;
2295 case MONO_NATIVE_LPTSTR:
2296 return MONO_MARSHAL_CONV_LPTSTR_STR;
2297 case MONO_NATIVE_BSTR:
2298 return MONO_MARSHAL_CONV_BSTR_STR;
2304 static MonoMarshalConv
2305 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2307 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2312 case MONO_NATIVE_LPWSTR:
2314 * mono_string_builder_to_utf16 does not allocate a
2315 * new buffer, so no need to free it.
2318 return MONO_MARSHAL_CONV_LPWSTR_SB;
2319 case MONO_NATIVE_LPSTR:
2320 return MONO_MARSHAL_CONV_LPSTR_SB;
2322 case MONO_NATIVE_LPTSTR:
2323 return MONO_MARSHAL_CONV_LPTSTR_SB;
2331 * Return whenever a field of a native structure or an array member needs to
2335 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2337 MonoMarshalNative encoding;
2338 MonoMarshalConv conv;
2341 case MONO_TYPE_VALUETYPE:
2342 /* FIXME: Optimize this */
2344 case MONO_TYPE_OBJECT:
2345 case MONO_TYPE_CLASS:
2346 if (t->data.klass == mono_defaults.stringbuilder_class) {
2348 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2352 case MONO_TYPE_STRING:
2353 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2354 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2361 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2364 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2367 mono_marshal_lock ();
2370 g_hash_table_new (hash_func, equal_func);
2371 mono_memory_barrier ();
2374 mono_marshal_unlock ();
2380 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2383 mono_marshal_lock ();
2386 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2387 mono_memory_barrier ();
2390 mono_marshal_unlock ();
2396 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2398 return get_cache (var, hash_func, equal_func);
2402 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2406 mono_marshal_lock ();
2407 res = g_hash_table_lookup (cache, key);
2408 mono_marshal_unlock ();
2412 /* Create the method from the builder and place it in the cache */
2414 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2415 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2420 mono_marshal_lock ();
2421 res = g_hash_table_lookup (cache, key);
2422 mono_marshal_unlock ();
2425 newm = mono_mb_create_method (mb, sig, max_stack);
2426 mono_marshal_lock ();
2427 res = g_hash_table_lookup (cache, key);
2430 g_hash_table_insert (cache, key, res);
2431 mono_marshal_set_wrapper_info (res, key);
2432 mono_marshal_unlock ();
2434 mono_marshal_unlock ();
2435 mono_free_method (newm);
2443 static inline MonoMethod*
2444 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2446 MonoMethod *res = NULL;
2447 MonoRemotingMethods *wrps;
2449 mono_marshal_lock ();
2450 if (method->klass->image->remoting_invoke_cache)
2451 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2456 switch (wrapper_type) {
2457 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2458 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2459 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2460 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2464 /* it is important to do the unlock after the load from wrps, since in
2465 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2466 * to take the loader lock and some other thread may set the fields.
2468 mono_marshal_unlock ();
2472 /* Create the method from the builder and place it in the cache */
2473 static inline MonoMethod*
2474 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2475 MonoMethodSignature *sig, int max_stack)
2477 MonoMethod **res = NULL;
2478 MonoRemotingMethods *wrps;
2479 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2481 mono_marshal_lock ();
2482 wrps = g_hash_table_lookup (cache, key);
2484 wrps = g_new0 (MonoRemotingMethods, 1);
2485 g_hash_table_insert (cache, key, wrps);
2488 switch (mb->method->wrapper_type) {
2489 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2490 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2491 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2492 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2493 default: g_assert_not_reached (); break;
2495 mono_marshal_unlock ();
2499 newm = mono_mb_create_method (mb, sig, max_stack);
2501 mono_marshal_lock ();
2504 mono_marshal_set_wrapper_info (*res, key);
2505 mono_marshal_unlock ();
2507 mono_marshal_unlock ();
2508 mono_free_method (newm);
2516 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2519 int wrapper_type = wrapper->wrapper_type;
2522 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2525 switch (wrapper_type) {
2526 case MONO_WRAPPER_REMOTING_INVOKE:
2527 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2528 case MONO_WRAPPER_XDOMAIN_INVOKE:
2529 case MONO_WRAPPER_SYNCHRONIZED:
2530 res = mono_marshal_get_wrapper_info (wrapper);
2534 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2535 info = mono_marshal_get_wrapper_info (wrapper);
2536 if (info && info->subtype == WRAPPER_SUBTYPE_NONE)
2537 return info->d.managed_to_native.method;
2540 case MONO_WRAPPER_RUNTIME_INVOKE:
2541 info = mono_marshal_get_wrapper_info (wrapper);
2542 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2543 return info->d.runtime_invoke.method;
2552 * mono_marshal_get_wrapper_info:
2554 * Retrieve the pointer stored by mono_marshal_set_wrapper_info. The type of data
2555 * returned depends on the wrapper type. It is usually a method, a class, or a
2556 * WrapperInfo structure.
2559 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2561 g_assert (wrapper->wrapper_type);
2563 return mono_method_get_wrapper_data (wrapper, 1);
2567 * mono_marshal_set_wrapper_info:
2569 * Store an arbitrary pointer inside the wrapper which is retrievable by
2570 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2571 * wrapper (method->wrapper_type).
2574 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2578 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2581 datav = ((MonoMethodWrapper *)method)->method_data;
2586 mono_wrapper_info_create (MonoMethod *wrapper, WrapperSubtype subtype)
2590 info = mono_image_alloc0 (wrapper->klass->image, sizeof (WrapperInfo));
2591 info->subtype = subtype;
2596 * get_wrapper_target_class:
2598 * Return the class where a wrapper method should be placed.
2601 get_wrapper_target_class (MonoImage *image)
2607 * - can't put all wrappers into an mscorlib class, because they reference
2608 * metadata (signature) so they should be put into the same image as the
2609 * method they wrap, so they are unloaded together.
2610 * - putting them into a class with a type initalizer could cause the
2611 * initializer to be executed which can be a problem if the wrappers are
2613 * - putting them into an inflated class can cause problems if the the
2614 * class is deleted because it references an image which is unloaded.
2615 * To avoid these problems, we put the wrappers into the <Module> class of
2619 klass = ((MonoDynamicImage*)image)->wrappers_type;
2621 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2628 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2630 MonoMethodSignature *sig;
2631 MonoMethodBuilder *mb;
2637 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2638 !strcmp (method->name, "BeginInvoke"));
2640 sig = mono_signature_no_pinvoke (method);
2642 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2643 (GHashFunc)mono_signature_hash,
2644 (GCompareFunc)mono_metadata_signature_equal);
2645 if ((res = mono_marshal_find_in_cache (cache, sig)))
2648 g_assert (sig->hasthis);
2650 name = mono_signature_to_name (sig, "begin_invoke");
2651 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2654 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2656 mono_mb_emit_ldarg (mb, 0);
2657 mono_mb_emit_ldloc (mb, params_var);
2658 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2659 mono_mb_emit_byte (mb, CEE_RET);
2661 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2667 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2669 MonoDomain *domain = mono_domain_get ();
2670 MonoAsyncResult *ares;
2671 MonoMethod *method = NULL;
2672 MonoMethodSignature *sig;
2673 MonoMethodMessage *msg;
2674 MonoObject *res, *exc;
2675 MonoArray *out_args;
2678 g_assert (delegate);
2680 if (!delegate->method_info) {
2681 g_assert (delegate->method);
2682 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2685 if (!delegate->method_info || !delegate->method_info->method)
2686 g_assert_not_reached ();
2688 klass = delegate->object.vtable->klass;
2690 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2691 g_assert (method != NULL);
2693 sig = mono_signature_no_pinvoke (method);
2695 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2697 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2699 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."));
2703 if (ares->async_delegate != (MonoObject*)delegate) {
2704 mono_raise_exception (mono_get_exception_invalid_operation (
2705 "The IAsyncResult object provided does not match this delegate."));
2709 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2710 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2711 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2712 mono_message_init (domain, msg, delegate->method_info, NULL);
2713 msg->call_type = CallType_EndInvoke;
2714 MONO_OBJECT_SETREF (msg, async_result, ares);
2715 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2717 res = mono_thread_pool_finish (ares, &out_args, &exc);
2721 if (((MonoException*)exc)->stack_trace) {
2722 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2724 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2726 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2729 mono_raise_exception ((MonoException*)exc);
2732 mono_method_return_message_restore (method, params, out_args);
2737 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2739 MonoType *t = mono_type_get_underlying_type (return_type);
2741 if (return_type->byref)
2742 return_type = &mono_defaults.int_class->byval_arg;
2745 case MONO_TYPE_VOID:
2746 g_assert_not_reached ();
2749 case MONO_TYPE_STRING:
2750 case MONO_TYPE_CLASS:
2751 case MONO_TYPE_OBJECT:
2752 case MONO_TYPE_ARRAY:
2753 case MONO_TYPE_SZARRAY:
2757 case MONO_TYPE_BOOLEAN:
2760 case MONO_TYPE_CHAR:
2770 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2771 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2773 case MONO_TYPE_GENERICINST:
2774 if (!mono_type_generic_inst_is_valuetype (t))
2777 case MONO_TYPE_VALUETYPE: {
2778 MonoClass *klass = mono_class_from_mono_type (return_type);
2779 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2780 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2784 g_warning ("type 0x%x not handled", return_type->type);
2785 g_assert_not_reached ();
2788 mono_mb_emit_byte (mb, CEE_RET);
2792 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2794 MonoMethodSignature *sig;
2795 MonoMethodBuilder *mb;
2801 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2802 !strcmp (method->name, "EndInvoke"));
2804 sig = mono_signature_no_pinvoke (method);
2806 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2807 (GHashFunc)mono_signature_hash,
2808 (GCompareFunc)mono_metadata_signature_equal);
2809 if ((res = mono_marshal_find_in_cache (cache, sig)))
2812 g_assert (sig->hasthis);
2814 name = mono_signature_to_name (sig, "end_invoke");
2815 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2818 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2820 mono_mb_emit_ldarg (mb, 0);
2821 mono_mb_emit_ldloc (mb, params_var);
2822 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2824 if (sig->ret->type == MONO_TYPE_VOID) {
2825 mono_mb_emit_byte (mb, CEE_POP);
2826 mono_mb_emit_byte (mb, CEE_RET);
2828 mono_mb_emit_restore_result (mb, sig->ret);
2830 res = mono_mb_create_and_cache (cache, sig,
2831 mb, sig, sig->param_count + 16);
2838 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2840 MonoMethodMessage *msg;
2841 MonoTransparentProxy *this;
2842 MonoObject *res, *exc;
2843 MonoArray *out_args;
2845 this = *((MonoTransparentProxy **)params [0]);
2848 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2850 /* skip the this pointer */
2853 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2856 MonoMethodSignature *sig = mono_method_signature (method);
2857 int count = sig->param_count;
2858 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2860 for (i=0; i<count; i++) {
2861 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2862 if (class->valuetype) {
2863 if (sig->params [i]->byref) {
2864 mparams[i] = *((gpointer *)params [i]);
2866 /* runtime_invoke expects a boxed instance */
2867 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2868 mparams[i] = mono_nullable_box (params [i], class);
2870 mparams[i] = params [i];
2873 mparams[i] = *((gpointer**)params [i]);
2877 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2880 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2882 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2885 mono_raise_exception ((MonoException *)exc);
2887 mono_method_return_message_restore (method, params, out_args);
2893 mono_marshal_get_remoting_invoke (MonoMethod *method)
2895 MonoMethodSignature *sig;
2896 MonoMethodBuilder *mb;
2902 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2905 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2906 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2907 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2908 g_assert (vtable); /*FIXME do proper error handling*/
2910 if (!vtable->remote) {
2912 return mono_cominterop_get_invoke (method);
2914 g_assert_not_reached ();
2919 sig = mono_signature_no_pinvoke (method);
2921 /* we cant remote methods without this pointer */
2925 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2928 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2929 mb->method->save_lmf = 1;
2931 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2933 mono_mb_emit_ptr (mb, method);
2934 mono_mb_emit_ldloc (mb, params_var);
2935 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2936 emit_thread_interrupt_checkpoint (mb);
2938 if (sig->ret->type == MONO_TYPE_VOID) {
2939 mono_mb_emit_byte (mb, CEE_POP);
2940 mono_mb_emit_byte (mb, CEE_RET);
2942 mono_mb_emit_restore_result (mb, sig->ret);
2945 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2951 /* mono_get_xdomain_marshal_type()
2952 * Returns the kind of marshalling that a type needs for cross domain calls.
2954 static MonoXDomainMarshalType
2955 mono_get_xdomain_marshal_type (MonoType *t)
2958 case MONO_TYPE_VOID:
2959 g_assert_not_reached ();
2963 case MONO_TYPE_BOOLEAN:
2966 case MONO_TYPE_CHAR:
2973 return MONO_MARSHAL_NONE;
2974 case MONO_TYPE_STRING:
2975 return MONO_MARSHAL_COPY;
2976 case MONO_TYPE_ARRAY:
2977 case MONO_TYPE_SZARRAY: {
2978 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2979 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2980 return MONO_MARSHAL_COPY;
2985 return MONO_MARSHAL_SERIALIZE;
2989 /* mono_marshal_xdomain_copy_value
2990 * Makes a copy of "val" suitable for the current domain.
2993 mono_marshal_xdomain_copy_value (MonoObject *val)
2996 if (val == NULL) return NULL;
2998 domain = mono_domain_get ();
3000 switch (mono_object_class (val)->byval_arg.type) {
3001 case MONO_TYPE_VOID:
3002 g_assert_not_reached ();
3006 case MONO_TYPE_BOOLEAN:
3009 case MONO_TYPE_CHAR:
3015 case MONO_TYPE_R8: {
3016 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3018 case MONO_TYPE_STRING: {
3019 MonoString *str = (MonoString *) val;
3020 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3022 case MONO_TYPE_ARRAY:
3023 case MONO_TYPE_SZARRAY: {
3025 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3026 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3027 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3028 if (mt == MONO_MARSHAL_COPY) {
3029 int i, len = mono_array_length (acopy);
3030 for (i = 0; i < len; i++) {
3031 MonoObject *item = mono_array_get (acopy, gpointer, i);
3032 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3035 return (MonoObject *) acopy;
3039 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3040 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3041 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3042 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3043 newsb->length = oldsb->length;
3044 newsb->max_capacity = (gint32)0x7fffffff;
3045 return (MonoObject *) newsb;
3050 /* mono_marshal_xdomain_copy_out_value()
3051 * Copies the contents of the src instance into the dst instance. src and dst
3052 * must have the same type, and if they are arrays, the same size.
3055 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3057 if (src == NULL || dst == NULL) return;
3059 g_assert (mono_object_class (src) == mono_object_class (dst));
3061 switch (mono_object_class (src)->byval_arg.type) {
3062 case MONO_TYPE_ARRAY:
3063 case MONO_TYPE_SZARRAY: {
3064 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3065 if (mt == MONO_MARSHAL_SERIALIZE) return;
3066 if (mt == MONO_MARSHAL_COPY) {
3067 int i, len = mono_array_length ((MonoArray *)dst);
3068 for (i = 0; i < len; i++) {
3069 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3070 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3073 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3079 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3080 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3081 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3083 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)));
3084 dst_sb->cached_str = NULL;
3085 dst_sb->length = src_sb->length;
3090 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3092 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3093 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3097 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3099 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3102 /* mono_marshal_supports_fast_xdomain()
3103 * Returns TRUE if the method can use the fast xdomain wrapper.
3106 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3108 return !method->klass->contextbound &&
3109 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3113 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3115 MonoDomain *current_domain = mono_domain_get ();
3116 MonoDomain *domain = mono_domain_get_by_id (id);
3118 if (!domain || !mono_domain_set (domain, FALSE))
3119 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3122 mono_thread_push_appdomain_ref (domain);
3124 mono_thread_pop_appdomain_ref ();
3126 return current_domain->domain_id;
3130 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3132 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3135 /* mono_marshal_emit_load_domain_method ()
3136 * Loads into the stack a pointer to the code of the provided method for
3137 * the current domain.
3140 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3142 /* We need a pointer to the method for the running domain (not the domain
3143 * that compiles the method).
3145 mono_mb_emit_ptr (mb, method);
3146 mono_mb_emit_icall (mb, mono_compile_method);
3149 /* mono_marshal_check_domain_image ()
3150 * Returns TRUE if the image is loaded in the specified
3151 * application domain.
3154 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3159 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3163 mono_domain_assemblies_lock (domain);
3164 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3166 if (ass->image == image)
3169 mono_domain_assemblies_unlock (domain);
3174 /* mono_marshal_get_xappdomain_dispatch ()
3175 * Generates a method that dispatches a method call from another domain into
3176 * the current domain.
3179 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3181 MonoMethodSignature *sig, *csig;
3182 MonoMethodBuilder *mb;
3184 int i, j, param_index, copy_locals_base;
3185 MonoClass *ret_class = NULL;
3186 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3187 MonoExceptionClause *main_clause;
3189 gboolean copy_return;
3191 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3194 sig = mono_method_signature (method);
3195 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3198 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3199 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3200 csig->params [j++] = &byte_array_class->this_arg;
3201 csig->params [j++] = &byte_array_class->this_arg;
3202 for (i = 0; i < sig->param_count; i++) {
3203 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3204 csig->params [j++] = sig->params [i];
3207 csig->ret = sig->ret;
3209 csig->ret = &mono_defaults.void_class->byval_arg;
3211 csig->hasthis = FALSE;
3213 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3214 mb->method->save_lmf = 1;
3218 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3219 if (complex_count > 0)
3220 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3221 if (sig->ret->type != MONO_TYPE_VOID) {
3222 loc_return = mono_mb_add_local (mb, sig->ret);
3223 ret_class = mono_class_from_mono_type (sig->ret);
3228 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3229 main_clause->try_offset = mono_mb_get_label (mb);
3231 /* Clean the call context */
3233 mono_mb_emit_byte (mb, CEE_LDNULL);
3234 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3235 mono_mb_emit_byte (mb, CEE_POP);
3237 /* Deserialize call data */
3239 mono_mb_emit_ldarg (mb, 1);
3240 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3241 mono_mb_emit_byte (mb, CEE_DUP);
3242 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3244 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3245 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3247 if (complex_count > 0)
3248 mono_mb_emit_stloc (mb, loc_array);
3250 mono_mb_emit_byte (mb, CEE_POP);
3252 mono_mb_patch_short_branch (mb, pos);
3254 /* Get the target object */
3256 mono_mb_emit_ldarg (mb, 0);
3257 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3259 /* Load the arguments */
3261 copy_locals_base = mb->locals;
3262 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3264 for (i = 0; i < sig->param_count; i++) {
3265 MonoType *pt = sig->params [i];
3266 MonoClass *pclass = mono_class_from_mono_type (pt);
3267 switch (marshal_types [i]) {
3268 case MONO_MARSHAL_SERIALIZE: {
3269 /* take the value from the serialized array */
3270 mono_mb_emit_ldloc (mb, loc_array);
3271 mono_mb_emit_icon (mb, j++);
3273 if (pclass->valuetype) {
3274 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3275 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3277 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3280 if (pclass->valuetype) {
3281 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3282 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3283 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3285 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3286 if (pclass != mono_defaults.object_class) {
3287 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3293 case MONO_MARSHAL_COPY_OUT: {
3294 /* Keep a local copy of the value since we need to copy it back after the call */
3295 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3296 mono_mb_emit_ldarg (mb, param_index++);
3297 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3298 mono_mb_emit_byte (mb, CEE_DUP);
3299 mono_mb_emit_stloc (mb, copy_local);
3302 case MONO_MARSHAL_COPY: {
3303 mono_mb_emit_ldarg (mb, param_index);
3305 mono_mb_emit_byte (mb, CEE_DUP);
3306 mono_mb_emit_byte (mb, CEE_DUP);
3307 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3308 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3309 mono_mb_emit_byte (mb, CEE_STIND_REF);
3311 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3316 case MONO_MARSHAL_NONE:
3317 mono_mb_emit_ldarg (mb, param_index++);
3322 /* Make the call to the real object */
3324 emit_thread_force_interrupt_checkpoint (mb);
3326 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3328 if (sig->ret->type != MONO_TYPE_VOID)
3329 mono_mb_emit_stloc (mb, loc_return);
3331 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3335 for (i = 0; i < sig->param_count; i++) {
3336 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3337 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3338 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3339 mono_mb_emit_ldarg (mb, param_index);
3340 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3345 /* Serialize the return values */
3347 if (complex_out_count > 0) {
3348 /* Reset parameters in the array that don't need to be serialized back */
3350 for (i = 0; i < sig->param_count; i++) {
3351 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3352 if (!sig->params [i]->byref) {
3353 mono_mb_emit_ldloc (mb, loc_array);
3354 mono_mb_emit_icon (mb, j);
3355 mono_mb_emit_byte (mb, CEE_LDNULL);
3356 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3361 /* Add the return value to the array */
3363 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3364 mono_mb_emit_ldloc (mb, loc_array);
3365 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3366 mono_mb_emit_ldloc (mb, loc_return);
3368 g_assert (ret_class); /*FIXME properly fail here*/
3369 if (ret_class->valuetype) {
3370 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3372 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3377 mono_mb_emit_ldarg (mb, 1);
3378 mono_mb_emit_ldloc (mb, loc_array);
3379 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3380 mono_mb_emit_byte (mb, CEE_STIND_REF);
3381 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3382 mono_mb_emit_ldarg (mb, 1);
3383 mono_mb_emit_ldloc (mb, loc_return);
3384 if (ret_class->valuetype) {
3385 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3387 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3388 mono_mb_emit_byte (mb, CEE_STIND_REF);
3390 mono_mb_emit_ldarg (mb, 1);
3391 mono_mb_emit_byte (mb, CEE_LDNULL);
3392 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3393 mono_mb_emit_byte (mb, CEE_STIND_REF);
3396 mono_mb_emit_ldarg (mb, 2);
3397 mono_mb_emit_byte (mb, CEE_LDNULL);
3398 mono_mb_emit_byte (mb, CEE_STIND_REF);
3399 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3401 /* Main exception catch */
3402 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3403 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3404 main_clause->data.catch_class = mono_defaults.object_class;
3407 main_clause->handler_offset = mono_mb_get_label (mb);
3408 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3409 mono_mb_emit_stloc (mb, loc_serialized_exc);
3410 mono_mb_emit_ldarg (mb, 2);
3411 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3412 mono_mb_emit_byte (mb, CEE_STIND_REF);
3413 mono_mb_emit_branch (mb, CEE_LEAVE);
3414 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3417 mono_mb_patch_branch (mb, pos_leave);
3420 mono_mb_emit_ldloc (mb, loc_return);
3422 mono_mb_emit_byte (mb, CEE_RET);
3424 mono_mb_set_clauses (mb, 1, main_clause);
3426 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3432 /* mono_marshal_get_xappdomain_invoke ()
3433 * Generates a fast remoting wrapper for cross app domain calls.
3436 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3438 MonoMethodSignature *sig;
3439 MonoMethodBuilder *mb;
3441 int i, j, complex_count, complex_out_count, copy_locals_base;
3443 MonoClass *ret_class = NULL;
3444 MonoMethod *xdomain_method;
3445 int ret_marshal_type = MONO_MARSHAL_NONE;
3446 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3447 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3448 int pos, pos_dispatch, pos_noex;
3449 gboolean copy_return = FALSE;
3453 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3456 /* we cant remote methods without this pointer */
3457 if (!mono_method_signature (method)->hasthis)
3460 if (!mono_marshal_supports_fast_xdomain (method))
3461 return mono_marshal_get_remoting_invoke (method);
3463 mono_remoting_marshal_init ();
3465 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3468 sig = mono_signature_no_pinvoke (method);
3470 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3471 mb->method->save_lmf = 1;
3473 /* Count the number of parameters that need to be serialized */
3475 marshal_types = alloca (sizeof (int) * sig->param_count);
3476 complex_count = complex_out_count = 0;
3477 for (i = 0; i < sig->param_count; i++) {
3478 MonoType *ptype = sig->params[i];
3479 int mt = mono_get_xdomain_marshal_type (ptype);
3481 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3482 * the copy will be made by reusing the original object instance
3484 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3485 mt = MONO_MARSHAL_COPY_OUT;
3486 else if (mt == MONO_MARSHAL_SERIALIZE) {
3488 if (ptype->byref) complex_out_count++;
3490 marshal_types [i] = mt;
3493 if (sig->ret->type != MONO_TYPE_VOID) {
3494 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3495 ret_class = mono_class_from_mono_type (sig->ret);
3496 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3501 if (complex_count > 0)
3502 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3503 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3504 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3506 loc_return = mono_mb_add_local (mb, sig->ret);
3507 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3508 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3509 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3510 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3512 /* Save thread domain data */
3514 mono_mb_emit_icall (mb, mono_context_get);
3515 mono_mb_emit_byte (mb, CEE_DUP);
3516 mono_mb_emit_stloc (mb, loc_context);
3518 /* If the thread is not running in the default context, it needs to go
3519 * through the whole remoting sink, since the context is going to change
3521 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3522 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3524 /* Another case in which the fast path can't be used: when the target domain
3525 * has a different image for the same assembly.
3528 /* Get the target domain id */
3530 mono_mb_emit_ldarg (mb, 0);
3531 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3532 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3533 mono_mb_emit_byte (mb, CEE_DUP);
3534 mono_mb_emit_stloc (mb, loc_real_proxy);
3536 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3537 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3538 mono_mb_emit_stloc (mb, loc_domainid);
3540 /* Check if the target domain has the same image for the required assembly */
3542 mono_mb_emit_ldloc (mb, loc_domainid);
3543 mono_mb_emit_ptr (mb, method->klass->image);
3544 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3545 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3547 /* Use the whole remoting sink to dispatch this message */
3549 mono_mb_patch_short_branch (mb, pos);
3551 mono_mb_emit_ldarg (mb, 0);
3552 for (i = 0; i < sig->param_count; i++)
3553 mono_mb_emit_ldarg (mb, i + 1);
3555 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3556 mono_mb_emit_byte (mb, CEE_RET);
3557 mono_mb_patch_short_branch (mb, pos_dispatch);
3559 /* Create the array that will hold the parameters to be serialized */
3561 if (complex_count > 0) {
3562 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 */
3563 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3566 for (i = 0; i < sig->param_count; i++) {
3568 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3569 pclass = mono_class_from_mono_type (sig->params[i]);
3570 mono_mb_emit_byte (mb, CEE_DUP);
3571 mono_mb_emit_icon (mb, j);
3572 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3573 if (sig->params[i]->byref) {
3574 if (pclass->valuetype)
3575 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3577 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3579 if (pclass->valuetype)
3580 mono_mb_emit_op (mb, CEE_BOX, pclass);
3581 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3584 mono_mb_emit_stloc (mb, loc_array);
3586 /* Serialize parameters */
3588 mono_mb_emit_ldloc (mb, loc_array);
3589 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3590 mono_mb_emit_stloc (mb, loc_serialized_data);
3592 mono_mb_emit_byte (mb, CEE_LDNULL);
3593 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3594 mono_mb_emit_stloc (mb, loc_serialized_data);
3599 mono_mb_emit_ldloc (mb, loc_domainid);
3600 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3601 mono_marshal_emit_switch_domain (mb);
3602 mono_mb_emit_stloc (mb, loc_old_domainid);
3604 /* Load the arguments */
3606 mono_mb_emit_ldloc (mb, loc_real_proxy);
3607 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3608 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3610 copy_locals_base = mb->locals;
3611 for (i = 0; i < sig->param_count; i++) {
3612 switch (marshal_types [i]) {
3613 case MONO_MARSHAL_SERIALIZE:
3615 case MONO_MARSHAL_COPY: {
3616 mono_mb_emit_ldarg (mb, i+1);
3617 if (sig->params [i]->byref) {
3618 /* make a local copy of the byref parameter. The real parameter
3619 * will be updated after the xdomain call
3621 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3622 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3623 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3624 mono_mb_emit_stloc (mb, copy_local);
3625 mono_mb_emit_ldloc_addr (mb, copy_local);
3629 case MONO_MARSHAL_COPY_OUT:
3630 case MONO_MARSHAL_NONE:
3631 mono_mb_emit_ldarg (mb, i+1);
3636 /* Make the call to the invoke wrapper in the target domain */
3638 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3639 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3640 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3643 mono_mb_emit_stloc (mb, loc_return);
3647 mono_mb_emit_ldloc (mb, loc_old_domainid);
3648 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3649 mono_marshal_emit_switch_domain (mb);
3650 mono_mb_emit_byte (mb, CEE_POP);
3652 /* Restore thread domain data */
3654 mono_mb_emit_ldloc (mb, loc_context);
3655 mono_mb_emit_icall (mb, mono_context_set);
3657 /* if (loc_serialized_exc != null) ... */
3659 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3660 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3662 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3663 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3664 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3665 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3666 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3667 mono_mb_emit_byte (mb, CEE_THROW);
3668 mono_mb_patch_short_branch (mb, pos_noex);
3670 /* copy back non-serialized output parameters */
3673 for (i = 0; i < sig->param_count; i++) {
3674 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3675 mono_mb_emit_ldarg (mb, i + 1);
3676 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3677 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3678 mono_mb_emit_byte (mb, CEE_STIND_REF);
3681 /* Deserialize out parameters */
3683 if (complex_out_count > 0) {
3684 mono_mb_emit_ldloc (mb, loc_serialized_data);
3685 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3686 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3687 mono_mb_emit_stloc (mb, loc_array);
3689 /* Copy back output parameters and return type */
3692 for (i = 0; i < sig->param_count; i++) {
3693 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3694 if (sig->params[i]->byref) {
3695 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3696 mono_mb_emit_ldarg (mb, i + 1);
3697 mono_mb_emit_ldloc (mb, loc_array);
3698 mono_mb_emit_icon (mb, j);
3699 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3700 if (pclass->valuetype) {
3701 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3702 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3703 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3705 if (pclass != mono_defaults.object_class)
3706 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3707 mono_mb_emit_byte (mb, CEE_STIND_REF);
3713 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3714 mono_mb_emit_ldloc (mb, loc_array);
3715 mono_mb_emit_icon (mb, complex_count);
3716 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3717 if (ret_class->valuetype) {
3718 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3719 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3722 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3723 mono_mb_emit_ldloc (mb, loc_serialized_data);
3724 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3725 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3726 if (ret_class->valuetype) {
3727 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3728 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3729 } else if (ret_class != mono_defaults.object_class) {
3730 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3733 mono_mb_emit_ldloc (mb, loc_serialized_data);
3734 mono_mb_emit_byte (mb, CEE_DUP);
3735 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3736 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3738 mono_mb_patch_short_branch (mb, pos);
3739 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3740 mono_mb_emit_byte (mb, CEE_POP);
3744 mono_mb_emit_ldloc (mb, loc_return);
3745 if (ret_marshal_type == MONO_MARSHAL_COPY)
3746 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3749 mono_mb_emit_byte (mb, CEE_RET);
3751 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3758 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3760 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3761 return mono_marshal_get_xappdomain_invoke (method);
3762 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3764 return mono_cominterop_get_invoke (method);
3766 g_assert_not_reached ();
3769 return mono_marshal_get_remoting_invoke (method);
3775 G_GNUC_UNUSED static gpointer
3776 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3778 if (rp->target_domain_id != -1)
3779 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3781 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3785 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3787 MonoMethodSignature *sig;
3788 MonoMethodBuilder *mb;
3789 MonoMethod *res, *native;
3790 int i, pos, pos_rem;
3794 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3797 /* we cant remote methods without this pointer */
3798 g_assert (mono_method_signature (method)->hasthis);
3800 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3803 sig = mono_signature_no_pinvoke (method);
3805 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3807 for (i = 0; i <= sig->param_count; i++)
3808 mono_mb_emit_ldarg (mb, i);
3810 mono_mb_emit_ldarg (mb, 0);
3811 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3813 if (mono_marshal_supports_fast_xdomain (method)) {
3814 mono_mb_emit_ldarg (mb, 0);
3815 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3817 /* wrapper for cross app domain calls */
3818 native = mono_marshal_get_xappdomain_invoke (method);
3819 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3820 mono_mb_emit_byte (mb, CEE_RET);
3822 mono_mb_patch_branch (mb, pos_rem);
3824 /* wrapper for normal remote calls */
3825 native = mono_marshal_get_remoting_invoke (method);
3826 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3827 mono_mb_emit_byte (mb, CEE_RET);
3830 mono_mb_patch_branch (mb, pos);
3831 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3832 mono_mb_emit_byte (mb, CEE_RET);
3834 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3842 MonoMethodSignature *sig;
3844 } SignatureMethodPair;
3847 signature_method_pair_hash (gconstpointer data)
3849 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3851 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3855 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3857 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3861 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3863 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3864 MonoMethod *method = (MonoMethod*)user_data;
3866 return pair->method == method;
3870 free_signature_method_pair (SignatureMethodPair *pair)
3876 * the returned method invokes all methods in a multicast delegate.
3879 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3881 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3883 MonoMethodBuilder *mb;
3884 MonoMethod *res, *newm;
3886 SignatureMethodPair key;
3887 SignatureMethodPair *new_key;
3888 int local_prev, local_target;
3891 MonoMethod *target_method = NULL;
3892 MonoClass *target_class = NULL;
3893 gboolean callvirt = FALSE;
3894 gboolean closed_over_null = FALSE;
3895 gboolean static_method_with_first_arg_bound = FALSE;
3898 * If the delegate target is null, and the target method is not static, a virtual
3899 * call is made to that method with the first delegate argument as this. This is
3900 * a non-documented .NET feature.
3902 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3904 target_method = del->method;
3905 if (target_method->is_inflated) {
3906 MonoType *target_type;
3908 g_assert (method->signature->hasthis);
3909 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3910 mono_method_get_context (method));
3911 target_class = mono_class_from_mono_type (target_type);
3913 target_class = del->method->klass;
3917 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3918 !strcmp (method->name, "Invoke"));
3920 invoke_sig = sig = mono_signature_no_pinvoke (method);
3923 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3925 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3926 invoke_sig = mono_method_signature (del->method);
3927 target_method = del->method;
3928 static_method_with_first_arg_bound = TRUE;
3931 if (callvirt || static_method_with_first_arg_bound) {
3932 GHashTable **cache_ptr;
3933 if (static_method_with_first_arg_bound)
3934 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
3936 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3938 /* We need to cache the signature+method pair */
3939 mono_marshal_lock ();
3941 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3943 key.sig = invoke_sig;
3944 key.method = target_method;
3945 res = g_hash_table_lookup (cache, &key);
3946 mono_marshal_unlock ();
3950 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3951 (GHashFunc)mono_signature_hash,
3952 (GCompareFunc)mono_metadata_signature_equal);
3953 if ((res = mono_marshal_find_in_cache (cache, sig)))
3957 static_sig = signature_dup (method->klass->image, sig);
3958 static_sig->hasthis = 0;
3959 if (!static_method_with_first_arg_bound)
3960 invoke_sig = static_sig;
3962 name = mono_signature_to_name (sig, "invoke");
3963 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3966 /* allocate local 0 (object) */
3967 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3968 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3970 g_assert (sig->hasthis);
3974 * prev.Invoke( args .. );
3975 * return this.<target>( args .. );
3978 /* this wrapper can be used in unmanaged-managed transitions */
3979 emit_thread_interrupt_checkpoint (mb);
3981 /* get this->prev */
3982 mono_mb_emit_ldarg (mb, 0);
3983 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3984 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3985 mono_mb_emit_stloc (mb, local_prev);
3986 mono_mb_emit_ldloc (mb, local_prev);
3988 /* if prev != null */
3989 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3993 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3994 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3996 mono_mb_emit_ldloc (mb, local_prev);
3997 for (i = 0; i < sig->param_count; i++)
3998 mono_mb_emit_ldarg (mb, i + 1);
3999 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4000 if (sig->ret->type != MONO_TYPE_VOID)
4001 mono_mb_emit_byte (mb, CEE_POP);
4003 /* continued or prev == null */
4004 mono_mb_patch_branch (mb, pos0);
4006 /* get this->target */
4007 mono_mb_emit_ldarg (mb, 0);
4008 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4009 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4010 mono_mb_emit_stloc (mb, local_target);
4012 /*static methods with bound first arg can have null target and still be bound*/
4013 if (!static_method_with_first_arg_bound) {
4014 /* if target != null */
4015 mono_mb_emit_ldloc (mb, local_target);
4016 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4018 /* then call this->method_ptr nonstatic */
4021 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4023 mono_mb_emit_ldloc (mb, local_target);
4024 for (i = 0; i < sig->param_count; ++i)
4025 mono_mb_emit_ldarg (mb, i + 1);
4026 mono_mb_emit_ldarg (mb, 0);
4027 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4028 mono_mb_emit_byte (mb, CEE_LDIND_I );
4029 mono_mb_emit_op (mb, CEE_CALLI, sig);
4031 mono_mb_emit_byte (mb, CEE_RET);
4034 /* else [target == null] call this->method_ptr static */
4035 mono_mb_patch_branch (mb, pos0);
4039 if (!closed_over_null) {
4040 mono_mb_emit_ldarg (mb, 1);
4041 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
4042 for (i = 1; i < sig->param_count; ++i)
4043 mono_mb_emit_ldarg (mb, i + 1);
4044 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4046 mono_mb_emit_byte (mb, CEE_LDNULL);
4047 for (i = 0; i < sig->param_count; ++i)
4048 mono_mb_emit_ldarg (mb, i + 1);
4049 mono_mb_emit_op (mb, CEE_CALL, target_method);
4052 if (static_method_with_first_arg_bound) {
4053 mono_mb_emit_ldloc (mb, local_target);
4054 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4055 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4057 for (i = 0; i < sig->param_count; ++i)
4058 mono_mb_emit_ldarg (mb, i + 1);
4059 mono_mb_emit_ldarg (mb, 0);
4060 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4061 mono_mb_emit_byte (mb, CEE_LDIND_I );
4062 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4065 mono_mb_emit_byte (mb, CEE_RET);
4067 if (static_method_with_first_arg_bound || callvirt) {
4068 // From mono_mb_create_and_cache
4069 mb->skip_visibility = 1;
4070 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4071 /*We perform double checked locking, so must fence before publishing*/
4072 mono_memory_barrier ();
4073 mono_marshal_lock ();
4074 res = g_hash_table_lookup (cache, &key);
4077 new_key = g_new0 (SignatureMethodPair, 1);
4079 if (static_method_with_first_arg_bound)
4080 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4081 g_hash_table_insert (cache, new_key, res);
4082 mono_marshal_set_wrapper_info (res, new_key);
4083 mono_marshal_unlock ();
4085 mono_marshal_unlock ();
4086 mono_free_method (newm);
4089 mb->skip_visibility = 1;
4090 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4098 * signature_dup_add_this:
4100 * Make a copy of @sig, adding an explicit this argument.
4102 static MonoMethodSignature*
4103 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4105 MonoMethodSignature *res;
4108 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4109 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4110 res->param_count = sig->param_count + 1;
4111 res->hasthis = FALSE;
4112 for (i = sig->param_count - 1; i >= 0; i --)
4113 res->params [i + 1] = sig->params [i];
4114 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4120 MonoMethodSignature *ctor_sig;
4121 MonoMethodSignature *sig;
4124 /* protected by the marshal lock, contains CtorSigPair pointers */
4125 static GSList *strsig_list = NULL;
4127 static MonoMethodSignature *
4128 lookup_string_ctor_signature (MonoMethodSignature *sig)
4130 MonoMethodSignature *callsig;
4134 mono_marshal_lock ();
4136 for (item = strsig_list; item; item = item->next) {
4138 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4139 * because it is lock-free.
4141 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4146 mono_marshal_unlock ();
4150 static MonoMethodSignature *
4151 add_string_ctor_signature (MonoMethod *method)
4153 MonoMethodSignature *callsig;
4156 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4157 callsig->ret = &mono_defaults.string_class->byval_arg;
4158 cs = g_new (CtorSigPair, 1);
4160 cs->ctor_sig = mono_method_signature (method);
4162 mono_marshal_lock ();
4163 strsig_list = g_slist_prepend (strsig_list, cs);
4164 mono_marshal_unlock ();
4169 * mono_marshal_get_string_ctor_signature:
4171 * Return the modified signature used by string ctors (they return the newly created
4174 MonoMethodSignature*
4175 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4177 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4179 sig = add_string_ctor_signature (method);
4185 get_runtime_invoke_type (MonoType *t, gboolean ret)
4188 /* Can't share this with 'I' as that needs another indirection */
4191 if (MONO_TYPE_IS_REFERENCE (t))
4192 return &mono_defaults.object_class->byval_arg;
4195 /* The result needs to be boxed */
4201 return &mono_defaults.sbyte_class->byval_arg;
4203 return &mono_defaults.int16_class->byval_arg;
4205 return &mono_defaults.int32_class->byval_arg;
4207 return &mono_defaults.int64_class->byval_arg;
4208 case MONO_TYPE_BOOLEAN:
4209 return &mono_defaults.sbyte_class->byval_arg;
4210 case MONO_TYPE_CHAR:
4211 return &mono_defaults.int16_class->byval_arg;
4214 return &mono_defaults.int_class->byval_arg;
4215 case MONO_TYPE_VALUETYPE:
4216 if (t->data.klass->enumtype) {
4217 t = mono_class_enum_basetype (t->data.klass);
4227 * mono_marshal_get_runtime_invoke_sig:
4229 * Return a common signature used for sharing runtime invoke wrappers.
4231 static MonoMethodSignature*
4232 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4234 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4237 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4238 for (i = 0; i < res->param_count; ++i)
4239 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4245 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4247 /* Can't share wrappers which return a vtype since it needs to be boxed */
4248 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))
4251 return mono_metadata_signature_equal (sig1, sig2);
4257 * Emit the call to the wrapper method from a runtime invoke wrapper.
4260 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4261 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4263 gboolean virtual, gboolean need_direct_wrapper)
4265 static MonoString *string_dummy = NULL;
4267 int *tmp_nullable_locals;
4268 gboolean void_ret = FALSE;
4270 /* to make it work with our special string constructors */
4271 if (!string_dummy) {
4272 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4273 string_dummy = mono_string_new_wrapper ("dummy");
4277 g_assert (sig->hasthis);
4278 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4282 if (method->string_ctor) {
4283 mono_mb_emit_ptr (mb, string_dummy);
4285 mono_mb_emit_ldarg (mb, 0);
4289 tmp_nullable_locals = g_new0 (int, sig->param_count);
4291 for (i = 0; i < sig->param_count; i++) {
4292 MonoType *t = sig->params [i];
4295 mono_mb_emit_ldarg (mb, 1);
4297 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4298 mono_mb_emit_byte (mb, CEE_ADD);
4302 mono_mb_emit_byte (mb, CEE_LDIND_I);
4303 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4304 * So to make this work we unbox it to a local variablee and push a reference to that.
4306 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4307 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4309 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4310 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4311 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4316 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4317 type = sig->params [i]->type;
4321 case MONO_TYPE_BOOLEAN:
4325 case MONO_TYPE_CHAR:
4334 mono_mb_emit_byte (mb, CEE_LDIND_I);
4335 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4337 case MONO_TYPE_STRING:
4338 case MONO_TYPE_CLASS:
4339 case MONO_TYPE_ARRAY:
4341 case MONO_TYPE_SZARRAY:
4342 case MONO_TYPE_OBJECT:
4343 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4345 case MONO_TYPE_GENERICINST:
4346 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4347 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4352 case MONO_TYPE_VALUETYPE:
4353 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4354 type = mono_class_enum_basetype (t->data.klass)->type;
4357 mono_mb_emit_byte (mb, CEE_LDIND_I);
4358 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4359 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4360 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4361 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4363 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4367 g_assert_not_reached ();
4372 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4373 } else if (need_direct_wrapper) {
4374 mono_mb_emit_op (mb, CEE_CALL, method);
4376 mono_mb_emit_ldarg (mb, 3);
4377 mono_mb_emit_calli (mb, callsig);
4380 if (sig->ret->byref) {
4382 g_assert_not_reached ();
4385 switch (sig->ret->type) {
4386 case MONO_TYPE_VOID:
4387 if (!method->string_ctor)
4390 case MONO_TYPE_BOOLEAN:
4391 case MONO_TYPE_CHAR:
4404 case MONO_TYPE_VALUETYPE:
4405 case MONO_TYPE_TYPEDBYREF:
4406 case MONO_TYPE_GENERICINST:
4407 /* box value types */
4408 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4410 case MONO_TYPE_STRING:
4411 case MONO_TYPE_CLASS:
4412 case MONO_TYPE_ARRAY:
4413 case MONO_TYPE_SZARRAY:
4414 case MONO_TYPE_OBJECT:
4418 /* The result is an IntPtr */
4419 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4422 g_assert_not_reached ();
4426 mono_mb_emit_stloc (mb, loc_res);
4428 /* Convert back nullable-byref arguments */
4429 for (i = 0; i < sig->param_count; i++) {
4430 MonoType *t = sig->params [i];
4433 * Box the result and put it back into the array, the caller will have
4434 * to obtain it from there.
4436 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4437 mono_mb_emit_ldarg (mb, 1);
4438 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4439 mono_mb_emit_byte (mb, CEE_ADD);
4441 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4442 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4444 mono_mb_emit_byte (mb, CEE_STIND_REF);
4448 g_free (tmp_nullable_locals);
4452 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4453 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4454 gboolean virtual, gboolean need_direct_wrapper)
4457 MonoExceptionClause *clause;
4458 int loc_res, loc_exc;
4460 /* The wrapper looks like this:
4466 * } catch (Exception e) {
4474 /* allocate local 0 (object) tmp */
4475 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4476 /* allocate local 1 (object) exc */
4477 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4479 /* *exc is assumed to be initialized to NULL by the caller */
4481 mono_mb_emit_byte (mb, CEE_LDARG_2);
4482 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4487 labels [1] = mono_mb_get_label (mb);
4488 emit_thread_force_interrupt_checkpoint (mb);
4489 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4491 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4493 /* Add a try clause around the call */
4494 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4495 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4496 clause->data.catch_class = mono_defaults.exception_class;
4497 clause->try_offset = labels [1];
4498 clause->try_len = mono_mb_get_label (mb) - labels [1];
4500 clause->handler_offset = mono_mb_get_label (mb);
4503 mono_mb_emit_stloc (mb, loc_exc);
4504 mono_mb_emit_byte (mb, CEE_LDARG_2);
4505 mono_mb_emit_ldloc (mb, loc_exc);
4506 mono_mb_emit_byte (mb, CEE_STIND_REF);
4508 mono_mb_emit_branch (mb, CEE_LEAVE);
4510 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4512 mono_mb_set_clauses (mb, 1, clause);
4514 mono_mb_patch_branch (mb, labels [2]);
4515 mono_mb_emit_ldloc (mb, loc_res);
4516 mono_mb_emit_byte (mb, CEE_RET);
4521 mono_mb_patch_branch (mb, labels [0]);
4522 emit_thread_force_interrupt_checkpoint (mb);
4523 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4525 mono_mb_emit_ldloc (mb, 0);
4526 mono_mb_emit_byte (mb, CEE_RET);
4530 * generates IL code for the runtime invoke function
4531 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4533 * we also catch exceptions if exc != null
4534 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4535 * it means that the compiled code for METHOD does not have to be looked up
4536 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4537 * its METHOD argument.
4540 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4542 MonoMethodSignature *sig, *csig, *callsig;
4543 MonoMethodBuilder *mb;
4544 GHashTable *cache = NULL;
4545 MonoClass *target_klass;
4546 MonoMethod *res = NULL;
4547 static MonoMethodSignature *cctor_signature = NULL;
4548 static MonoMethodSignature *finalize_signature = NULL;
4550 const char *param_names [16];
4551 gboolean need_direct_wrapper = FALSE;
4556 if (!cctor_signature) {
4557 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4558 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4560 if (!finalize_signature) {
4561 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4562 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4563 finalize_signature->hasthis = 1;
4567 need_direct_wrapper = TRUE;
4570 * Use a separate cache indexed by methods to speed things up and to avoid the
4571 * boundless mempool growth caused by the signature_dup stuff below.
4574 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4576 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4577 res = mono_marshal_find_in_cache (cache, method);
4581 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4582 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4584 * Array Get/Set/Address methods. The JIT implements them using inline code
4585 * so we need to create an invoke wrapper which calls the method directly.
4587 need_direct_wrapper = TRUE;
4590 if (method->string_ctor) {
4591 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4593 callsig = add_string_ctor_signature (method);
4594 /* Can't share this as we push a string as this */
4595 need_direct_wrapper = TRUE;
4597 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4599 * Valuetype methods receive a managed pointer as the this argument.
4600 * Create a new signature to reflect this.
4602 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4603 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4604 need_direct_wrapper = TRUE;
4606 if (method->dynamic)
4607 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4609 callsig = mono_method_signature (method);
4613 target_klass = get_wrapper_target_class (method->klass->image);
4615 /* Try to share wrappers for non-corlib methods with simple signatures */
4616 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4617 callsig = cctor_signature;
4618 target_klass = mono_defaults.object_class;
4619 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4620 callsig = finalize_signature;
4621 target_klass = mono_defaults.object_class;
4624 if (need_direct_wrapper) {
4625 /* Already searched at the start */
4627 MonoMethodSignature *tmp_sig;
4629 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4631 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4632 (GHashFunc)mono_signature_hash,
4633 (GCompareFunc)runtime_invoke_signature_equal);
4635 /* from mono_marshal_find_in_cache */
4636 mono_marshal_lock ();
4637 res = g_hash_table_lookup (cache, callsig);
4638 mono_marshal_unlock ();
4645 /* Make a copy of the signature from the image mempool */
4647 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4651 sig = mono_method_signature (method);
4653 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4655 csig->ret = &mono_defaults.object_class->byval_arg;
4656 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4657 csig->params [0] = callsig->params [0];
4659 csig->params [0] = &mono_defaults.object_class->byval_arg;
4660 csig->params [1] = &mono_defaults.int_class->byval_arg;
4661 csig->params [2] = &mono_defaults.int_class->byval_arg;
4662 csig->params [3] = &mono_defaults.int_class->byval_arg;
4665 /* This is called from runtime code so it has to be cdecl */
4666 csig->call_convention = MONO_CALL_C;
4669 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4670 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4673 param_names [0] = "this";
4674 param_names [1] = "params";
4675 param_names [2] = "exc";
4676 param_names [3] = "method";
4677 mono_mb_set_param_names (mb, param_names);
4679 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4681 if (need_direct_wrapper) {
4682 mb->skip_visibility = 1;
4683 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4684 info = mono_wrapper_info_create (res, virtual ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4685 info->d.runtime_invoke.method = method;
4686 mono_marshal_set_wrapper_info (res, info);
4688 /* taken from mono_mb_create_and_cache */
4689 mono_marshal_lock ();
4690 res = g_hash_table_lookup (cache, callsig);
4691 mono_marshal_unlock ();
4693 /* Somebody may have created it before us */
4696 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4698 mono_marshal_lock ();
4699 res = g_hash_table_lookup (cache, callsig);
4702 g_hash_table_insert (cache, callsig, res);
4703 /* Can't insert it into wrapper_hash since the key is a signature */
4704 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4706 mono_free_method (newm);
4708 mono_marshal_unlock ();
4711 /* end mono_mb_create_and_cache */
4720 * mono_marshal_get_runtime_invoke_dynamic:
4722 * Return a method which can be used to invoke managed methods from native code
4724 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4725 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4726 * ARGS should point to an architecture specific structure containing
4727 * the arguments and space for the return value.
4728 * The other arguments are the same as for runtime_invoke (), except that
4729 * ARGS should contain the this argument too.
4730 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4731 * is only one copy of it, which is useful in full-aot.
4732 * The wrapper info for the wrapper is a WrapperInfo structure.
4735 mono_marshal_get_runtime_invoke_dynamic (void)
4737 static MonoMethod *method;
4738 MonoMethodSignature *csig;
4739 MonoExceptionClause *clause;
4740 MonoMethodBuilder *mb;
4748 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4750 csig->ret = &mono_defaults.void_class->byval_arg;
4751 csig->params [0] = &mono_defaults.int_class->byval_arg;
4752 csig->params [1] = &mono_defaults.int_class->byval_arg;
4753 csig->params [2] = &mono_defaults.int_class->byval_arg;
4754 csig->params [3] = &mono_defaults.int_class->byval_arg;
4756 name = g_strdup ("runtime_invoke_dynamic");
4757 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4760 /* allocate local 0 (object) tmp */
4761 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4762 /* allocate local 1 (object) exc */
4763 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4765 /* cond set *exc to null */
4766 mono_mb_emit_byte (mb, CEE_LDARG_1);
4767 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4768 mono_mb_emit_byte (mb, 3);
4769 mono_mb_emit_byte (mb, CEE_LDARG_1);
4770 mono_mb_emit_byte (mb, CEE_LDNULL);
4771 mono_mb_emit_byte (mb, CEE_STIND_REF);
4773 emit_thread_force_interrupt_checkpoint (mb);
4775 mono_mb_emit_byte (mb, CEE_LDARG_0);
4776 mono_mb_emit_byte (mb, CEE_LDARG_2);
4777 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4778 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4780 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4782 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4783 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4784 clause->try_len = mono_mb_get_label (mb);
4787 clause->data.filter_offset = mono_mb_get_label (mb);
4789 mono_mb_emit_byte (mb, CEE_POP);
4790 mono_mb_emit_byte (mb, CEE_LDARG_1);
4791 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4792 mono_mb_emit_byte (mb, CEE_PREFIX1);
4793 mono_mb_emit_byte (mb, CEE_CGT_UN);
4794 mono_mb_emit_byte (mb, CEE_PREFIX1);
4795 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4797 clause->handler_offset = mono_mb_get_label (mb);
4800 /* store exception */
4801 mono_mb_emit_stloc (mb, 1);
4803 mono_mb_emit_byte (mb, CEE_LDARG_1);
4804 mono_mb_emit_ldloc (mb, 1);
4805 mono_mb_emit_byte (mb, CEE_STIND_REF);
4807 mono_mb_emit_byte (mb, CEE_LDNULL);
4808 mono_mb_emit_stloc (mb, 0);
4810 /* Check for the abort exception */
4811 mono_mb_emit_ldloc (mb, 1);
4812 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4813 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4815 /* Delay the abort exception */
4816 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4818 mono_mb_patch_short_branch (mb, posna);
4819 mono_mb_emit_branch (mb, CEE_LEAVE);
4821 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4823 mono_mb_set_clauses (mb, 1, clause);
4826 mono_mb_patch_branch (mb, pos);
4827 //mono_mb_emit_ldloc (mb, 0);
4828 mono_mb_emit_byte (mb, CEE_RET);
4830 mono_loader_lock ();
4831 /* double-checked locking */
4833 method = mono_mb_create_method (mb, csig, 16);
4834 info = mono_wrapper_info_create (method, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4835 mono_marshal_set_wrapper_info (method, info);
4837 mono_loader_unlock ();
4845 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4847 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4848 klass->name_space, klass->name);
4850 mono_mb_emit_exception_marshal_directive (mb, msg);
4854 * mono_marshal_get_ldfld_remote_wrapper:
4855 * @klass: The return type
4857 * This method generates a wrapper for calling mono_load_remote_field_new.
4858 * The return type is ignored for now, as mono_load_remote_field_new () always
4859 * returns an object. In the future, to optimize some codepaths, we might
4860 * call a different function that takes a pointer to a valuetype, instead.
4863 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4865 MonoMethodSignature *sig, *csig;
4866 MonoMethodBuilder *mb;
4868 static MonoMethod* cached = NULL;
4870 mono_marshal_lock ();
4872 mono_marshal_unlock ();
4875 mono_marshal_unlock ();
4877 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4879 mb->method->save_lmf = 1;
4881 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4882 sig->params [0] = &mono_defaults.object_class->byval_arg;
4883 sig->params [1] = &mono_defaults.int_class->byval_arg;
4884 sig->params [2] = &mono_defaults.int_class->byval_arg;
4885 sig->ret = &mono_defaults.object_class->byval_arg;
4887 mono_mb_emit_ldarg (mb, 0);
4888 mono_mb_emit_ldarg (mb, 1);
4889 mono_mb_emit_ldarg (mb, 2);
4891 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4892 csig->params [0] = &mono_defaults.object_class->byval_arg;
4893 csig->params [1] = &mono_defaults.int_class->byval_arg;
4894 csig->params [2] = &mono_defaults.int_class->byval_arg;
4895 csig->ret = &mono_defaults.object_class->byval_arg;
4898 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4899 emit_thread_interrupt_checkpoint (mb);
4901 mono_mb_emit_byte (mb, CEE_RET);
4903 mono_marshal_lock ();
4905 mono_marshal_unlock ();
4908 newm = mono_mb_create_method (mb, sig, 4);
4909 mono_marshal_lock ();
4914 mono_marshal_unlock ();
4916 mono_marshal_unlock ();
4917 mono_free_method (newm);
4926 * mono_marshal_get_ldfld_wrapper:
4927 * @type: the type of the field
4929 * This method generates a function which can be use to load a field with type
4930 * @type from an object. The generated function has the following signature:
4931 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4934 mono_marshal_get_ldfld_wrapper (MonoType *type)
4936 MonoMethodSignature *sig;
4937 MonoMethodBuilder *mb;
4942 int t, pos0, pos1 = 0;
4944 type = mono_type_get_underlying_type (type);
4949 if (type->type == MONO_TYPE_SZARRAY) {
4950 klass = mono_defaults.array_class;
4951 } else if (type->type == MONO_TYPE_VALUETYPE) {
4952 klass = type->data.klass;
4953 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4954 klass = mono_defaults.object_class;
4955 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4956 klass = mono_defaults.int_class;
4957 } else if (t == MONO_TYPE_GENERICINST) {
4958 if (mono_type_generic_inst_is_valuetype (type))
4959 klass = mono_class_from_mono_type (type);
4961 klass = mono_defaults.object_class;
4963 klass = mono_class_from_mono_type (type);
4966 klass = mono_defaults.int_class;
4969 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4970 if ((res = mono_marshal_find_in_cache (cache, klass)))
4973 /* we add the %p pointer value of klass because class names are not unique */
4974 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4975 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4978 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4979 sig->params [0] = &mono_defaults.object_class->byval_arg;
4980 sig->params [1] = &mono_defaults.int_class->byval_arg;
4981 sig->params [2] = &mono_defaults.int_class->byval_arg;
4982 sig->params [3] = &mono_defaults.int_class->byval_arg;
4983 sig->ret = &klass->byval_arg;
4985 mono_mb_emit_ldarg (mb, 0);
4986 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4988 mono_mb_emit_ldarg (mb, 0);
4989 mono_mb_emit_ldarg (mb, 1);
4990 mono_mb_emit_ldarg (mb, 2);
4992 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4995 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4996 csig->params [0] = &mono_defaults.object_class->byval_arg;
4997 csig->params [1] = &mono_defaults.int_class->byval_arg;
4998 csig->params [2] = &mono_defaults.int_class->byval_arg;
4999 csig->ret = &klass->this_arg;
5002 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
5003 emit_thread_interrupt_checkpoint (mb);
5006 if (klass->valuetype) {
5007 mono_mb_emit_op (mb, CEE_UNBOX, klass);
5008 pos1 = mono_mb_emit_branch (mb, CEE_BR);
5010 mono_mb_emit_byte (mb, CEE_RET);
5014 mono_mb_patch_branch (mb, pos0);
5016 mono_mb_emit_ldarg (mb, 0);
5017 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5018 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5019 mono_mb_emit_ldarg (mb, 3);
5020 mono_mb_emit_byte (mb, CEE_ADD);
5022 if (klass->valuetype)
5023 mono_mb_patch_branch (mb, pos1);
5028 case MONO_TYPE_BOOLEAN:
5029 case MONO_TYPE_CHAR:
5038 case MONO_TYPE_ARRAY:
5039 case MONO_TYPE_SZARRAY:
5040 case MONO_TYPE_OBJECT:
5041 case MONO_TYPE_CLASS:
5042 case MONO_TYPE_STRING:
5046 case MONO_TYPE_FNPTR:
5047 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5049 case MONO_TYPE_VALUETYPE:
5050 g_assert (!klass->enumtype);
5051 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5053 case MONO_TYPE_GENERICINST:
5054 if (mono_type_generic_inst_is_valuetype (type)) {
5055 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5057 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5061 g_warning ("type %x not implemented", type->type);
5062 g_assert_not_reached ();
5065 mono_mb_emit_byte (mb, CEE_RET);
5067 res = mono_mb_create_and_cache (cache, klass,
5068 mb, sig, sig->param_count + 16);
5075 * mono_marshal_get_ldflda_wrapper:
5076 * @type: the type of the field
5078 * This method generates a function which can be used to load a field address
5079 * from an object. The generated function has the following signature:
5080 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5083 mono_marshal_get_ldflda_wrapper (MonoType *type)
5085 MonoMethodSignature *sig;
5086 MonoMethodBuilder *mb;
5091 int t, pos0, pos1, pos2, pos3;
5093 type = mono_type_get_underlying_type (type);
5097 if (type->type == MONO_TYPE_SZARRAY) {
5098 klass = mono_defaults.array_class;
5099 } else if (type->type == MONO_TYPE_VALUETYPE) {
5100 klass = type->data.klass;
5101 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5102 t == MONO_TYPE_CLASS) {
5103 klass = mono_defaults.object_class;
5104 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5105 klass = mono_defaults.int_class;
5106 } else if (t == MONO_TYPE_GENERICINST) {
5107 if (mono_type_generic_inst_is_valuetype (type))
5108 klass = mono_class_from_mono_type (type);
5110 klass = mono_defaults.object_class;
5112 klass = mono_class_from_mono_type (type);
5115 klass = mono_defaults.int_class;
5118 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5119 if ((res = mono_marshal_find_in_cache (cache, klass)))
5122 /* we add the %p pointer value of klass because class names are not unique */
5123 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5124 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5127 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5128 sig->params [0] = &mono_defaults.object_class->byval_arg;
5129 sig->params [1] = &mono_defaults.int_class->byval_arg;
5130 sig->params [2] = &mono_defaults.int_class->byval_arg;
5131 sig->params [3] = &mono_defaults.int_class->byval_arg;
5132 sig->ret = &mono_defaults.int_class->byval_arg;
5134 /* if typeof (this) != transparent_proxy goto pos0 */
5135 mono_mb_emit_ldarg (mb, 0);
5136 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5138 /* if same_appdomain goto pos1 */
5139 mono_mb_emit_ldarg (mb, 0);
5140 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5142 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5144 /* same app domain */
5145 mono_mb_patch_branch (mb, pos1);
5147 /* if typeof (this) != contextbound goto pos2 */
5148 mono_mb_emit_ldarg (mb, 0);
5149 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5151 /* if this->rp->context == mono_context_get goto pos3 */
5152 mono_mb_emit_ldarg (mb, 0);
5153 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5154 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5155 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5156 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5157 mono_mb_emit_icall (mb, mono_context_get);
5158 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5160 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5162 mono_mb_patch_branch (mb, pos2);
5163 mono_mb_patch_branch (mb, pos3);
5165 /* return the address of the field from this->rp->unwrapped_server */
5166 mono_mb_emit_ldarg (mb, 0);
5167 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5168 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5169 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5170 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5171 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5172 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5173 mono_mb_emit_ldarg (mb, 3);
5174 mono_mb_emit_byte (mb, CEE_ADD);
5175 mono_mb_emit_byte (mb, CEE_RET);
5177 /* not a proxy: return the address of the field directly */
5178 mono_mb_patch_branch (mb, pos0);
5180 mono_mb_emit_ldarg (mb, 0);
5181 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5182 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5183 mono_mb_emit_ldarg (mb, 3);
5184 mono_mb_emit_byte (mb, CEE_ADD);
5186 mono_mb_emit_byte (mb, CEE_RET);
5188 res = mono_mb_create_and_cache (cache, klass,
5189 mb, sig, sig->param_count + 16);
5196 * mono_marshal_get_stfld_remote_wrapper:
5197 * klass: The type of the field
5199 * This function generates a wrapper for calling mono_store_remote_field_new
5200 * with the appropriate signature.
5201 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5202 * klass argument anymore.
5205 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5207 MonoMethodSignature *sig, *csig;
5208 MonoMethodBuilder *mb;
5210 static MonoMethod *cached = NULL;
5212 mono_marshal_lock ();
5214 mono_marshal_unlock ();
5217 mono_marshal_unlock ();
5219 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5221 mb->method->save_lmf = 1;
5223 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5224 sig->params [0] = &mono_defaults.object_class->byval_arg;
5225 sig->params [1] = &mono_defaults.int_class->byval_arg;
5226 sig->params [2] = &mono_defaults.int_class->byval_arg;
5227 sig->params [3] = &mono_defaults.object_class->byval_arg;
5228 sig->ret = &mono_defaults.void_class->byval_arg;
5230 mono_mb_emit_ldarg (mb, 0);
5231 mono_mb_emit_ldarg (mb, 1);
5232 mono_mb_emit_ldarg (mb, 2);
5233 mono_mb_emit_ldarg (mb, 3);
5235 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5236 csig->params [0] = &mono_defaults.object_class->byval_arg;
5237 csig->params [1] = &mono_defaults.int_class->byval_arg;
5238 csig->params [2] = &mono_defaults.int_class->byval_arg;
5239 csig->params [3] = &mono_defaults.object_class->byval_arg;
5240 csig->ret = &mono_defaults.void_class->byval_arg;
5243 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5244 emit_thread_interrupt_checkpoint (mb);
5246 mono_mb_emit_byte (mb, CEE_RET);
5248 mono_marshal_lock ();
5250 mono_marshal_unlock ();
5253 newm = mono_mb_create_method (mb, sig, 6);
5254 mono_marshal_lock ();
5259 mono_marshal_unlock ();
5261 mono_marshal_unlock ();
5262 mono_free_method (newm);
5271 * mono_marshal_get_stfld_wrapper:
5272 * @type: the type of the field
5274 * This method generates a function which can be use to store a field with type
5275 * @type. The generated function has the following signature:
5276 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5279 mono_marshal_get_stfld_wrapper (MonoType *type)
5281 MonoMethodSignature *sig;
5282 MonoMethodBuilder *mb;
5289 type = mono_type_get_underlying_type (type);
5293 if (type->type == MONO_TYPE_SZARRAY) {
5294 klass = mono_defaults.array_class;
5295 } else if (type->type == MONO_TYPE_VALUETYPE) {
5296 klass = type->data.klass;
5297 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5298 klass = mono_defaults.object_class;
5299 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5300 klass = mono_defaults.int_class;
5301 } else if (t == MONO_TYPE_GENERICINST) {
5302 if (mono_type_generic_inst_is_valuetype (type))
5303 klass = mono_class_from_mono_type (type);
5305 klass = mono_defaults.object_class;
5307 klass = mono_class_from_mono_type (type);
5310 klass = mono_defaults.int_class;
5313 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5314 if ((res = mono_marshal_find_in_cache (cache, klass)))
5317 /* we add the %p pointer value of klass because class names are not unique */
5318 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5319 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5322 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5323 sig->params [0] = &mono_defaults.object_class->byval_arg;
5324 sig->params [1] = &mono_defaults.int_class->byval_arg;
5325 sig->params [2] = &mono_defaults.int_class->byval_arg;
5326 sig->params [3] = &mono_defaults.int_class->byval_arg;
5327 sig->params [4] = &klass->byval_arg;
5328 sig->ret = &mono_defaults.void_class->byval_arg;
5330 mono_mb_emit_ldarg (mb, 0);
5331 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5333 mono_mb_emit_ldarg (mb, 0);
5334 mono_mb_emit_ldarg (mb, 1);
5335 mono_mb_emit_ldarg (mb, 2);
5336 mono_mb_emit_ldarg (mb, 4);
5337 if (klass->valuetype)
5338 mono_mb_emit_op (mb, CEE_BOX, klass);
5340 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5342 mono_mb_emit_byte (mb, CEE_RET);
5344 mono_mb_patch_branch (mb, pos);
5346 mono_mb_emit_ldarg (mb, 0);
5347 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5348 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5349 mono_mb_emit_ldarg (mb, 3);
5350 mono_mb_emit_byte (mb, CEE_ADD);
5351 mono_mb_emit_ldarg (mb, 4);
5356 case MONO_TYPE_BOOLEAN:
5357 case MONO_TYPE_CHAR:
5366 case MONO_TYPE_ARRAY:
5367 case MONO_TYPE_SZARRAY:
5368 case MONO_TYPE_OBJECT:
5369 case MONO_TYPE_CLASS:
5370 case MONO_TYPE_STRING:
5374 case MONO_TYPE_FNPTR:
5375 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5377 case MONO_TYPE_VALUETYPE:
5378 g_assert (!klass->enumtype);
5379 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5381 case MONO_TYPE_GENERICINST:
5382 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5385 g_warning ("type %x not implemented", type->type);
5386 g_assert_not_reached ();
5389 mono_mb_emit_byte (mb, CEE_RET);
5391 res = mono_mb_create_and_cache (cache, klass,
5392 mb, sig, sig->param_count + 16);
5399 * generates IL code for the icall wrapper (the generated method
5400 * calls the unmanaged code in func)
5401 * The wrapper info for the wrapper is a WrapperInfo structure.
5404 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5406 MonoMethodSignature *csig, *csig2;
5407 MonoMethodBuilder *mb;
5412 g_assert (sig->pinvoke);
5414 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5416 mb->method->save_lmf = 1;
5418 /* Add an explicit this argument */
5420 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5422 csig2 = signature_dup (mono_defaults.corlib, sig);
5425 mono_mb_emit_byte (mb, CEE_LDARG_0);
5427 for (i = 0; i < sig->param_count; i++)
5428 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5430 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5431 if (check_exceptions)
5432 emit_thread_interrupt_checkpoint (mb);
5433 mono_mb_emit_byte (mb, CEE_RET);
5435 csig = signature_dup (mono_defaults.corlib, sig);
5437 if (csig->call_convention == MONO_CALL_VARARG)
5438 csig->call_convention = 0;
5440 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5443 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ICALL_WRAPPER);
5444 mono_marshal_set_wrapper_info (res, info);
5450 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5451 MonoMarshalSpec *spec,
5452 int conv_arg, MonoType **conv_arg_type,
5453 MarshalAction action)
5457 static MonoClass *ICustomMarshaler = NULL;
5458 static MonoMethod *cleanup_native, *cleanup_managed;
5459 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5460 MonoMethod *get_instance = NULL;
5461 MonoMethodBuilder *mb = m->mb;
5462 char *exception_msg = NULL;
5466 if (!ICustomMarshaler) {
5467 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5468 if (!ICustomMarshaler) {
5469 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5470 goto handle_exception;
5473 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5474 g_assert (cleanup_native);
5475 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5476 g_assert (cleanup_managed);
5477 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5478 g_assert (marshal_managed_to_native);
5479 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5480 g_assert (marshal_native_to_managed);
5483 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5484 g_assert (mtype != NULL);
5485 mklass = mono_class_from_mono_type (mtype);
5486 g_assert (mklass != NULL);
5488 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5489 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5491 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5493 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5494 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5495 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5496 (get_sig->params [0]->type != MONO_TYPE_STRING))
5497 get_instance = NULL;
5501 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);
5504 /* Throw exception and emit compensation code if neccesary */
5505 if (exception_msg) {
5507 case MARSHAL_ACTION_CONV_IN:
5508 case MARSHAL_ACTION_CONV_RESULT:
5509 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5510 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5511 mono_mb_emit_byte (mb, CEE_POP);
5513 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5514 g_free (exception_msg);
5517 case MARSHAL_ACTION_PUSH:
5518 mono_mb_emit_byte (mb, CEE_LDNULL);
5526 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5527 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5530 case MARSHAL_ACTION_CONV_IN:
5532 case MONO_TYPE_CLASS:
5533 case MONO_TYPE_OBJECT:
5534 case MONO_TYPE_STRING:
5535 case MONO_TYPE_ARRAY:
5536 case MONO_TYPE_SZARRAY:
5537 case MONO_TYPE_VALUETYPE:
5541 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5542 g_assert_not_reached ();
5546 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5548 mono_mb_emit_byte (mb, CEE_LDNULL);
5549 mono_mb_emit_stloc (mb, conv_arg);
5551 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5554 /* Minic MS.NET behavior */
5555 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5558 /* Check for null */
5559 mono_mb_emit_ldarg (mb, argnum);
5561 mono_mb_emit_byte (mb, CEE_LDIND_I);
5562 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5564 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5566 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5568 mono_mb_emit_ldarg (mb, argnum);
5570 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5572 if (t->type == MONO_TYPE_VALUETYPE) {
5574 * Since we can't determine the type of the argument, we
5575 * will assume the unmanaged function takes a pointer.
5577 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5579 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5582 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5583 mono_mb_emit_stloc (mb, conv_arg);
5585 mono_mb_patch_branch (mb, pos2);
5588 case MARSHAL_ACTION_CONV_OUT:
5589 /* Check for null */
5590 mono_mb_emit_ldloc (mb, conv_arg);
5591 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5594 mono_mb_emit_ldarg (mb, argnum);
5596 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5598 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5600 mono_mb_emit_ldloc (mb, conv_arg);
5601 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5602 mono_mb_emit_byte (mb, CEE_STIND_REF);
5603 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5604 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5606 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5608 mono_mb_emit_ldloc (mb, conv_arg);
5609 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5611 /* We have nowhere to store the result */
5612 mono_mb_emit_byte (mb, CEE_POP);
5615 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5617 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5619 mono_mb_emit_ldloc (mb, conv_arg);
5621 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5623 mono_mb_patch_branch (mb, pos2);
5626 case MARSHAL_ACTION_PUSH:
5628 mono_mb_emit_ldloc_addr (mb, conv_arg);
5630 mono_mb_emit_ldloc (mb, conv_arg);
5633 case MARSHAL_ACTION_CONV_RESULT:
5634 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5636 mono_mb_emit_stloc (mb, 3);
5638 mono_mb_emit_ldloc (mb, 3);
5639 mono_mb_emit_stloc (mb, loc1);
5641 /* Check for null */
5642 mono_mb_emit_ldloc (mb, 3);
5643 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5645 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5647 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5648 mono_mb_emit_byte (mb, CEE_DUP);
5650 mono_mb_emit_ldloc (mb, 3);
5651 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5652 mono_mb_emit_stloc (mb, 3);
5654 mono_mb_emit_ldloc (mb, loc1);
5655 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5657 mono_mb_patch_branch (mb, pos2);
5660 case MARSHAL_ACTION_MANAGED_CONV_IN:
5661 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5663 mono_mb_emit_byte (mb, CEE_LDNULL);
5664 mono_mb_emit_stloc (mb, conv_arg);
5666 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5669 /* Check for null */
5670 mono_mb_emit_ldarg (mb, argnum);
5672 mono_mb_emit_byte (mb, CEE_LDIND_I);
5673 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5675 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5676 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5678 mono_mb_emit_ldarg (mb, argnum);
5680 mono_mb_emit_byte (mb, CEE_LDIND_I);
5682 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5683 mono_mb_emit_stloc (mb, conv_arg);
5685 mono_mb_patch_branch (mb, pos2);
5688 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5689 g_assert (!t->byref);
5691 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5693 mono_mb_emit_stloc (mb, 3);
5695 mono_mb_emit_ldloc (mb, 3);
5696 mono_mb_emit_stloc (mb, loc1);
5698 /* Check for null */
5699 mono_mb_emit_ldloc (mb, 3);
5700 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5702 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5703 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5704 mono_mb_emit_byte (mb, CEE_DUP);
5706 mono_mb_emit_ldloc (mb, 3);
5707 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5708 mono_mb_emit_stloc (mb, 3);
5710 mono_mb_emit_ldloc (mb, loc1);
5711 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5713 mono_mb_patch_branch (mb, pos2);
5716 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5718 /* Check for null */
5719 mono_mb_emit_ldloc (mb, conv_arg);
5720 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5723 mono_mb_emit_ldarg (mb, argnum);
5725 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5727 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5729 mono_mb_emit_ldloc (mb, conv_arg);
5730 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5731 mono_mb_emit_byte (mb, CEE_STIND_I);
5734 /* Call CleanUpManagedData */
5735 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5737 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5739 mono_mb_emit_ldloc (mb, conv_arg);
5740 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5742 mono_mb_patch_branch (mb, pos2);
5746 g_assert_not_reached ();
5753 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5754 MonoMarshalSpec *spec,
5755 int conv_arg, MonoType **conv_arg_type,
5756 MarshalAction action)
5758 MonoMethodBuilder *mb = m->mb;
5761 case MARSHAL_ACTION_CONV_IN: {
5762 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5764 g_assert (t->type == MONO_TYPE_OBJECT);
5765 g_assert (!t->byref);
5767 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5768 mono_mb_emit_ldarg (mb, argnum);
5769 mono_mb_emit_icon (mb, encoding);
5770 mono_mb_emit_icon (mb, t->attrs);
5771 mono_mb_emit_icall (mb, mono_marshal_asany);
5772 mono_mb_emit_stloc (mb, conv_arg);
5776 case MARSHAL_ACTION_PUSH:
5777 mono_mb_emit_ldloc (mb, conv_arg);
5780 case MARSHAL_ACTION_CONV_OUT: {
5781 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5783 mono_mb_emit_ldarg (mb, argnum);
5784 mono_mb_emit_ldloc (mb, conv_arg);
5785 mono_mb_emit_icon (mb, encoding);
5786 mono_mb_emit_icon (mb, t->attrs);
5787 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5792 g_assert_not_reached ();
5799 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5800 MonoMarshalSpec *spec,
5801 int conv_arg, MonoType **conv_arg_type,
5802 MarshalAction action)
5804 MonoMethodBuilder *mb = m->mb;
5805 MonoClass *klass, *date_time_class;
5808 klass = mono_class_from_mono_type (t);
5810 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5813 case MARSHAL_ACTION_CONV_IN:
5814 if (klass == date_time_class) {
5815 /* Convert it to an OLE DATE type */
5816 static MonoMethod *to_oadate;
5819 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5820 g_assert (to_oadate);
5822 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5825 mono_mb_emit_ldarg (mb, argnum);
5826 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5829 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5831 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5833 mono_mb_emit_ldarg_addr (mb, argnum);
5834 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5835 mono_mb_emit_stloc (mb, conv_arg);
5839 mono_mb_patch_branch (mb, pos);
5843 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5844 klass->blittable || klass->enumtype)
5847 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5849 /* store the address of the source into local variable 0 */
5851 mono_mb_emit_ldarg (mb, argnum);
5853 mono_mb_emit_ldarg_addr (mb, argnum);
5855 mono_mb_emit_stloc (mb, 0);
5857 /* allocate space for the native struct and
5858 * store the address into local variable 1 (dest) */
5859 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5860 mono_mb_emit_byte (mb, CEE_PREFIX1);
5861 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5862 mono_mb_emit_stloc (mb, conv_arg);
5865 mono_mb_emit_ldloc (mb, 0);
5866 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5869 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5871 mono_mb_emit_ldloc (mb, conv_arg);
5872 mono_mb_emit_stloc (mb, 1);
5874 /* emit valuetype conversion code */
5875 emit_struct_conv (mb, klass, FALSE);
5879 mono_mb_patch_branch (mb, pos);
5882 case MARSHAL_ACTION_PUSH:
5883 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5885 g_assert (!t->byref);
5887 /* Have to change the signature since the vtype is passed byref */
5888 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5890 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5891 klass->blittable || klass->enumtype)
5892 mono_mb_emit_ldarg_addr (mb, argnum);
5894 mono_mb_emit_ldloc (mb, conv_arg);
5898 if (klass == date_time_class) {
5900 mono_mb_emit_ldloc_addr (mb, conv_arg);
5902 mono_mb_emit_ldloc (mb, conv_arg);
5906 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5907 klass->blittable || klass->enumtype) {
5908 mono_mb_emit_ldarg (mb, argnum);
5911 mono_mb_emit_ldloc (mb, conv_arg);
5913 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5914 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5918 case MARSHAL_ACTION_CONV_OUT:
5919 if (klass == date_time_class) {
5920 /* Convert from an OLE DATE type */
5921 static MonoMethod *from_oadate;
5926 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5928 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5929 g_assert (from_oadate);
5931 mono_mb_emit_ldarg (mb, argnum);
5932 mono_mb_emit_ldloc (mb, conv_arg);
5933 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5934 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5939 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5940 klass->blittable || klass->enumtype)
5944 /* dst = argument */
5945 mono_mb_emit_ldarg (mb, argnum);
5946 mono_mb_emit_stloc (mb, 1);
5948 mono_mb_emit_ldloc (mb, 1);
5949 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5951 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5952 /* src = tmp_locals [i] */
5953 mono_mb_emit_ldloc (mb, conv_arg);
5954 mono_mb_emit_stloc (mb, 0);
5956 /* emit valuetype conversion code */
5957 emit_struct_conv (mb, klass, TRUE);
5961 emit_struct_free (mb, klass, conv_arg);
5964 mono_mb_patch_branch (mb, pos);
5967 case MARSHAL_ACTION_CONV_RESULT:
5968 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5970 mono_mb_emit_stloc (mb, 3);
5974 /* load pointer to returned value type */
5975 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5976 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5977 /* store the address of the source into local variable 0 */
5978 mono_mb_emit_stloc (mb, 0);
5980 mono_mb_emit_ldloc_addr (mb, 3);
5981 mono_mb_emit_stloc (mb, 1);
5983 /* emit valuetype conversion code */
5984 emit_struct_conv (mb, klass, TRUE);
5987 case MARSHAL_ACTION_MANAGED_CONV_IN:
5988 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5989 klass->blittable || klass->enumtype) {
5994 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5996 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6000 mono_mb_emit_ldarg (mb, argnum);
6002 mono_mb_emit_ldarg_addr (mb, argnum);
6003 mono_mb_emit_stloc (mb, 0);
6006 mono_mb_emit_ldloc (mb, 0);
6007 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6010 mono_mb_emit_ldloc_addr (mb, conv_arg);
6011 mono_mb_emit_stloc (mb, 1);
6013 /* emit valuetype conversion code */
6014 emit_struct_conv (mb, klass, TRUE);
6017 mono_mb_patch_branch (mb, pos);
6020 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6021 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6022 klass->blittable || klass->enumtype) {
6026 /* Check for null */
6027 mono_mb_emit_ldarg (mb, argnum);
6028 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6031 mono_mb_emit_ldloc_addr (mb, conv_arg);
6032 mono_mb_emit_stloc (mb, 0);
6035 mono_mb_emit_ldarg (mb, argnum);
6036 mono_mb_emit_stloc (mb, 1);
6038 /* emit valuetype conversion code */
6039 emit_struct_conv (mb, klass, FALSE);
6041 mono_mb_patch_branch (mb, pos2);
6044 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6045 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
6046 klass->blittable || klass->enumtype) {
6047 mono_mb_emit_stloc (mb, 3);
6052 /* load pointer to returned value type */
6053 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6054 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
6056 /* store the address of the source into local variable 0 */
6057 mono_mb_emit_stloc (mb, 0);
6058 /* allocate space for the native struct and
6059 * store the address into dst_ptr */
6060 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6061 m->retobj_class = klass;
6062 g_assert (m->retobj_var);
6063 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6064 mono_mb_emit_byte (mb, CEE_CONV_I);
6065 mono_mb_emit_icall (mb, mono_marshal_alloc);
6066 mono_mb_emit_stloc (mb, 1);
6067 mono_mb_emit_ldloc (mb, 1);
6068 mono_mb_emit_stloc (mb, m->retobj_var);
6070 /* emit valuetype conversion code */
6071 emit_struct_conv (mb, klass, FALSE);
6075 g_assert_not_reached ();
6082 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6083 MonoMarshalSpec *spec,
6084 int conv_arg, MonoType **conv_arg_type,
6085 MarshalAction action)
6087 MonoMethodBuilder *mb = m->mb;
6088 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6089 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6093 case MARSHAL_ACTION_CONV_IN:
6094 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6095 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6098 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6101 mono_mb_emit_ldarg (mb, argnum);
6102 mono_mb_emit_byte (mb, CEE_LDIND_I);
6104 mono_mb_emit_ldarg (mb, argnum);
6108 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6109 MonoException *exc = mono_get_exception_not_implemented (msg);
6110 g_warning ("%s", msg);
6112 mono_raise_exception (exc);
6115 mono_mb_emit_icall (mb, conv_to_icall (conv));
6117 mono_mb_emit_stloc (mb, conv_arg);
6120 case MARSHAL_ACTION_CONV_OUT:
6121 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6123 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6124 mono_mb_emit_exception_marshal_directive (mb, msg);
6128 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6129 static MonoMethod *m;
6132 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6137 * Have to allocate a new string with the same length as the original, and
6138 * copy the contents of the buffer pointed to by CONV_ARG into it.
6140 g_assert (t->byref);
6141 mono_mb_emit_ldarg (mb, argnum);
6142 mono_mb_emit_ldloc (mb, conv_arg);
6143 mono_mb_emit_ldarg (mb, argnum);
6144 mono_mb_emit_byte (mb, CEE_LDIND_I);
6145 mono_mb_emit_managed_call (mb, m, NULL);
6146 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
6147 mono_mb_emit_byte (mb, CEE_STIND_REF);
6148 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6149 mono_mb_emit_ldarg (mb, argnum);
6150 mono_mb_emit_ldloc (mb, conv_arg);
6151 mono_mb_emit_icall (mb, conv_to_icall (conv));
6152 mono_mb_emit_byte (mb, CEE_STIND_REF);
6155 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6156 mono_mb_emit_ldloc (mb, conv_arg);
6157 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6158 mono_mb_emit_icall (mb, mono_free_bstr);
6160 mono_mb_emit_icall (mb, mono_marshal_free);
6164 case MARSHAL_ACTION_PUSH:
6165 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
6166 mono_mb_emit_ldloc_addr (mb, conv_arg);
6168 mono_mb_emit_ldloc (mb, conv_arg);
6171 case MARSHAL_ACTION_CONV_RESULT:
6172 mono_mb_emit_stloc (mb, 0);
6174 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6176 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6177 mono_mb_emit_exception_marshal_directive (mb, msg);
6181 mono_mb_emit_ldloc (mb, 0);
6182 mono_mb_emit_icall (mb, conv_to_icall (conv));
6183 mono_mb_emit_stloc (mb, 3);
6185 /* free the string */
6186 mono_mb_emit_ldloc (mb, 0);
6187 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6188 mono_mb_emit_icall (mb, mono_free_bstr);
6190 mono_mb_emit_icall (mb, mono_marshal_free);
6193 case MARSHAL_ACTION_MANAGED_CONV_IN:
6194 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6196 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6199 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6203 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6205 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6206 mono_mb_emit_exception_marshal_directive (mb, msg);
6210 mono_mb_emit_ldarg (mb, argnum);
6212 mono_mb_emit_byte (mb, CEE_LDIND_I);
6213 mono_mb_emit_icall (mb, conv_to_icall (conv));
6214 mono_mb_emit_stloc (mb, conv_arg);
6217 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6220 mono_mb_emit_ldarg (mb, argnum);
6221 mono_mb_emit_ldloc (mb, conv_arg);
6222 mono_mb_emit_icall (mb, conv_to_icall (conv));
6223 mono_mb_emit_byte (mb, CEE_STIND_I);
6228 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6229 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6230 /* We need to make a copy so the caller is able to free it */
6231 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6233 mono_mb_emit_icall (mb, conv_to_icall (conv));
6234 mono_mb_emit_stloc (mb, 3);
6238 g_assert_not_reached ();
6245 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6246 MonoMarshalSpec *spec, int conv_arg,
6247 MonoType **conv_arg_type, MarshalAction action)
6249 MonoMethodBuilder *mb = m->mb;
6252 case MARSHAL_ACTION_CONV_IN: {
6253 MonoType *intptr_type;
6254 int dar_release_slot, pos;
6256 intptr_type = &mono_defaults.int_class->byval_arg;
6257 conv_arg = mono_mb_add_local (mb, intptr_type);
6258 *conv_arg_type = intptr_type;
6260 if (!sh_dangerous_add_ref)
6261 init_safe_handle ();
6263 mono_mb_emit_ldarg (mb, argnum);
6264 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6265 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6267 mono_mb_patch_branch (mb, pos);
6270 * My tests in show that ref SafeHandles are not really
6271 * passed as ref objects. Instead a NULL is passed as the
6274 mono_mb_emit_icon (mb, 0);
6275 mono_mb_emit_stloc (mb, conv_arg);
6279 /* Create local to hold the ref parameter to DangerousAddRef */
6280 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6282 /* set release = false; */
6283 mono_mb_emit_icon (mb, 0);
6284 mono_mb_emit_stloc (mb, dar_release_slot);
6286 /* safehandle.DangerousAddRef (ref release) */
6287 mono_mb_emit_ldarg (mb, argnum);
6288 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6289 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6291 /* Pull the handle field from SafeHandle */
6292 mono_mb_emit_ldarg (mb, argnum);
6293 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6294 mono_mb_emit_byte (mb, CEE_LDIND_I);
6295 mono_mb_emit_stloc (mb, conv_arg);
6300 case MARSHAL_ACTION_PUSH:
6302 mono_mb_emit_ldloc_addr (mb, conv_arg);
6304 mono_mb_emit_ldloc (mb, conv_arg);
6307 case MARSHAL_ACTION_CONV_OUT: {
6308 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6309 int dar_release_slot = conv_arg + 1;
6312 if (!sh_dangerous_release)
6313 init_safe_handle ();
6319 * My tests indicate that ref SafeHandles parameters are not actually
6320 * passed by ref, but instead a new Handle is created regardless of
6321 * whether a change happens in the unmanaged side.
6323 * Also, the Handle is created before calling into unmanaged code,
6324 * but we do not support that mechanism (getting to the original
6325 * handle) and it makes no difference where we create this
6327 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6329 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6332 /* refval = new SafeHandleDerived ()*/
6333 mono_mb_emit_ldarg (mb, argnum);
6334 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6335 mono_mb_emit_byte (mb, CEE_STIND_REF);
6337 /* refval.handle = returned_handle */
6338 mono_mb_emit_ldarg (mb, argnum);
6339 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6340 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6341 mono_mb_emit_ldloc (mb, conv_arg);
6342 mono_mb_emit_byte (mb, CEE_STIND_I);
6344 mono_mb_emit_ldloc (mb, dar_release_slot);
6345 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6346 mono_mb_emit_ldarg (mb, argnum);
6347 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6348 mono_mb_patch_branch (mb, label_next);
6353 case MARSHAL_ACTION_CONV_RESULT: {
6354 MonoMethod *ctor = NULL;
6355 int intptr_handle_slot;
6357 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6358 mono_mb_emit_byte (mb, CEE_POP);
6359 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
6363 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6365 mono_mb_emit_byte (mb, CEE_POP);
6366 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6369 /* Store the IntPtr results into a local */
6370 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6371 mono_mb_emit_stloc (mb, intptr_handle_slot);
6373 /* Create return value */
6374 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6375 mono_mb_emit_stloc (mb, 3);
6377 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6378 mono_mb_emit_ldloc (mb, 3);
6379 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6380 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6381 mono_mb_emit_byte (mb, CEE_STIND_I);
6385 case MARSHAL_ACTION_MANAGED_CONV_IN:
6386 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6389 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6390 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6393 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6394 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6397 printf ("Unhandled case for MarshalAction: %d\n", action);
6404 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6405 MonoMarshalSpec *spec, int conv_arg,
6406 MonoType **conv_arg_type, MarshalAction action)
6408 MonoMethodBuilder *mb = m->mb;
6411 case MARSHAL_ACTION_CONV_IN: {
6412 MonoType *intptr_type;
6414 intptr_type = &mono_defaults.int_class->byval_arg;
6415 conv_arg = mono_mb_add_local (mb, intptr_type);
6416 *conv_arg_type = intptr_type;
6419 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6420 mono_mb_emit_exception_marshal_directive (mb, msg);
6423 mono_mb_emit_ldarg_addr (mb, argnum);
6424 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6425 mono_mb_emit_byte (mb, CEE_ADD);
6426 mono_mb_emit_byte (mb, CEE_LDIND_I);
6427 mono_mb_emit_stloc (mb, conv_arg);
6431 case MARSHAL_ACTION_PUSH:
6432 mono_mb_emit_ldloc (mb, conv_arg);
6435 case MARSHAL_ACTION_CONV_OUT: {
6436 /* no resource release required */
6440 case MARSHAL_ACTION_CONV_RESULT: {
6441 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6442 mono_mb_emit_exception_marshal_directive (mb, msg);
6446 case MARSHAL_ACTION_MANAGED_CONV_IN:
6447 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6450 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6451 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6454 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6455 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6458 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6465 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6466 MonoMarshalSpec *spec,
6467 int conv_arg, MonoType **conv_arg_type,
6468 MarshalAction action)
6470 MonoMethodBuilder *mb = m->mb;
6471 MonoClass *klass = mono_class_from_mono_type (t);
6475 case MARSHAL_ACTION_CONV_IN:
6476 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6477 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6479 m->orig_conv_args [argnum] = 0;
6481 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6482 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6483 mono_mb_emit_exception_marshal_directive (mb, msg);
6487 if (klass->delegate) {
6489 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6490 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6491 mono_mb_emit_exception_marshal_directive (mb, msg);
6493 mono_mb_emit_byte (mb, CEE_LDNULL);
6494 mono_mb_emit_stloc (mb, conv_arg);
6496 mono_mb_emit_ldarg (mb, argnum);
6497 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6498 mono_mb_emit_stloc (mb, conv_arg);
6500 } else if (klass == mono_defaults.stringbuilder_class) {
6501 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6502 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6505 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6506 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6507 mono_mb_emit_exception_marshal_directive (mb, msg);
6512 mono_mb_emit_ldarg (mb, argnum);
6515 mono_mb_emit_icall (mb, conv_to_icall (conv));
6517 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6518 MonoException *exc = mono_get_exception_not_implemented (msg);
6519 g_warning ("%s", msg);
6521 mono_raise_exception (exc);
6524 mono_mb_emit_stloc (mb, conv_arg);
6525 } else if (klass->blittable) {
6526 mono_mb_emit_byte (mb, CEE_LDNULL);
6527 mono_mb_emit_stloc (mb, conv_arg);
6529 mono_mb_emit_ldarg (mb, argnum);
6530 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6532 mono_mb_emit_ldarg (mb, argnum);
6533 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6534 mono_mb_emit_stloc (mb, conv_arg);
6536 mono_mb_patch_branch (mb, pos);
6539 mono_mb_emit_byte (mb, CEE_LDNULL);
6540 mono_mb_emit_stloc (mb, conv_arg);
6543 /* we dont need any conversions for out parameters */
6544 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6547 mono_mb_emit_ldarg (mb, argnum);
6548 mono_mb_emit_byte (mb, CEE_LDIND_I);
6551 mono_mb_emit_ldarg (mb, argnum);
6552 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6553 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6556 /* store the address of the source into local variable 0 */
6557 mono_mb_emit_stloc (mb, 0);
6558 mono_mb_emit_ldloc (mb, 0);
6559 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6561 /* allocate space for the native struct and store the address */
6562 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6563 mono_mb_emit_byte (mb, CEE_PREFIX1);
6564 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6565 mono_mb_emit_stloc (mb, conv_arg);
6568 /* Need to store the original buffer so we can free it later */
6569 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6570 mono_mb_emit_ldloc (mb, conv_arg);
6571 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6574 /* set the src_ptr */
6575 mono_mb_emit_ldloc (mb, 0);
6576 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6577 mono_mb_emit_stloc (mb, 0);
6580 mono_mb_emit_ldloc (mb, conv_arg);
6581 mono_mb_emit_stloc (mb, 1);
6583 /* emit valuetype conversion code */
6584 emit_struct_conv (mb, klass, FALSE);
6586 mono_mb_patch_branch (mb, pos);
6590 case MARSHAL_ACTION_CONV_OUT:
6591 if (klass == mono_defaults.stringbuilder_class) {
6593 MonoMarshalNative encoding;
6594 MonoMarshalConv conv;
6596 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6597 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6599 g_assert (encoding != -1);
6602 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6606 mono_mb_emit_ldarg (mb, argnum);
6607 mono_mb_emit_ldloc (mb, conv_arg);
6610 case MONO_NATIVE_LPWSTR:
6611 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6613 case MONO_NATIVE_LPSTR:
6614 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6617 g_assert_not_reached ();
6620 mono_mb_emit_byte (mb, CEE_STIND_REF);
6622 mono_mb_emit_ldarg (mb, argnum);
6623 mono_mb_emit_ldloc (mb, conv_arg);
6625 mono_mb_emit_icall (mb, conv_to_icall (conv));
6629 mono_mb_emit_ldloc (mb, conv_arg);
6630 mono_mb_emit_icall (mb, mono_marshal_free);
6635 if (klass->delegate) {
6637 mono_mb_emit_ldarg (mb, argnum);
6638 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6639 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6640 mono_mb_emit_ldloc (mb, conv_arg);
6641 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6642 mono_mb_emit_byte (mb, CEE_STIND_REF);
6647 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6648 /* allocate a new object */
6649 mono_mb_emit_ldarg (mb, argnum);
6650 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6651 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6652 mono_mb_emit_byte (mb, CEE_STIND_REF);
6655 /* dst = *argument */
6656 mono_mb_emit_ldarg (mb, argnum);
6659 mono_mb_emit_byte (mb, CEE_LDIND_I);
6661 mono_mb_emit_stloc (mb, 1);
6663 mono_mb_emit_ldloc (mb, 1);
6664 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6666 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6667 mono_mb_emit_ldloc (mb, 1);
6668 mono_mb_emit_icon (mb, sizeof (MonoObject));
6669 mono_mb_emit_byte (mb, CEE_ADD);
6670 mono_mb_emit_stloc (mb, 1);
6672 /* src = tmp_locals [i] */
6673 mono_mb_emit_ldloc (mb, conv_arg);
6674 mono_mb_emit_stloc (mb, 0);
6676 /* emit valuetype conversion code */
6677 emit_struct_conv (mb, klass, TRUE);
6679 /* Free the structure returned by the native code */
6680 emit_struct_free (mb, klass, conv_arg);
6682 if (m->orig_conv_args [argnum]) {
6684 * If the native function changed the pointer, then free
6685 * the original structure plus the new pointer.
6687 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6688 mono_mb_emit_ldloc (mb, conv_arg);
6689 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6691 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6692 g_assert (m->orig_conv_args [argnum]);
6694 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6697 mono_mb_emit_ldloc (mb, conv_arg);
6698 mono_mb_emit_icall (mb, mono_marshal_free);
6700 mono_mb_patch_branch (mb, pos2);
6704 /* Free the original structure passed to native code */
6705 emit_struct_free (mb, klass, conv_arg);
6707 mono_mb_patch_branch (mb, pos);
6710 case MARSHAL_ACTION_PUSH:
6712 mono_mb_emit_ldloc_addr (mb, conv_arg);
6714 mono_mb_emit_ldloc (mb, conv_arg);
6717 case MARSHAL_ACTION_CONV_RESULT:
6718 if (klass->delegate) {
6719 g_assert (!t->byref);
6720 mono_mb_emit_stloc (mb, 0);
6721 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6722 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6723 mono_mb_emit_ldloc (mb, 0);
6724 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6725 mono_mb_emit_stloc (mb, 3);
6728 mono_mb_emit_stloc (mb, 0);
6730 /* Make a copy since emit_conv modifies local 0 */
6731 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6732 mono_mb_emit_ldloc (mb, 0);
6733 mono_mb_emit_stloc (mb, loc);
6735 mono_mb_emit_byte (mb, CEE_LDNULL);
6736 mono_mb_emit_stloc (mb, 3);
6738 mono_mb_emit_ldloc (mb, 0);
6739 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6741 /* allocate result object */
6743 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6744 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6745 mono_mb_emit_stloc (mb, 3);
6749 mono_mb_emit_ldloc (mb, 3);
6750 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6751 mono_mb_emit_stloc (mb, 1);
6753 /* emit conversion code */
6754 emit_struct_conv (mb, klass, TRUE);
6756 emit_struct_free (mb, klass, loc);
6758 /* Free the pointer allocated by unmanaged code */
6759 mono_mb_emit_ldloc (mb, loc);
6760 mono_mb_emit_icall (mb, mono_marshal_free);
6761 mono_mb_patch_branch (mb, pos);
6765 case MARSHAL_ACTION_MANAGED_CONV_IN:
6766 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6768 if (klass->delegate) {
6769 g_assert (!t->byref);
6770 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6771 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6772 mono_mb_emit_ldarg (mb, argnum);
6773 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6774 mono_mb_emit_stloc (mb, conv_arg);
6778 if (klass == mono_defaults.stringbuilder_class) {
6779 MonoMarshalNative encoding;
6781 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6784 g_assert (encoding == MONO_NATIVE_LPSTR);
6786 g_assert (!t->byref);
6787 g_assert (encoding != -1);
6789 mono_mb_emit_ldarg (mb, argnum);
6790 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6791 mono_mb_emit_stloc (mb, conv_arg);
6795 /* The class can not have an automatic layout */
6796 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6797 mono_mb_emit_auto_layout_exception (mb, klass);
6801 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6802 mono_mb_emit_byte (mb, CEE_LDNULL);
6803 mono_mb_emit_stloc (mb, conv_arg);
6808 mono_mb_emit_ldarg (mb, argnum);
6812 /* Check for NULL and raise an exception */
6813 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6815 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6817 mono_mb_patch_branch (mb, pos2);
6818 mono_mb_emit_ldarg (mb, argnum);
6819 mono_mb_emit_byte (mb, CEE_LDIND_I);
6822 mono_mb_emit_stloc (mb, 0);
6824 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6825 mono_mb_emit_stloc (mb, conv_arg);
6827 mono_mb_emit_ldloc (mb, 0);
6828 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6830 /* Create and set dst */
6831 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6832 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6833 mono_mb_emit_stloc (mb, conv_arg);
6834 mono_mb_emit_ldloc (mb, conv_arg);
6835 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6836 mono_mb_emit_stloc (mb, 1);
6838 /* emit valuetype conversion code */
6839 emit_struct_conv (mb, klass, TRUE);
6841 mono_mb_patch_branch (mb, pos);
6844 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6846 /* Check for null */
6847 mono_mb_emit_ldloc (mb, conv_arg);
6848 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6849 mono_mb_emit_ldarg (mb, argnum);
6850 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6851 mono_mb_emit_byte (mb, CEE_STIND_REF);
6852 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6854 mono_mb_patch_branch (mb, pos);
6857 mono_mb_emit_ldloc (mb, conv_arg);
6858 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6859 mono_mb_emit_stloc (mb, 0);
6861 /* Allocate and set dest */
6862 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6863 mono_mb_emit_byte (mb, CEE_CONV_I);
6864 mono_mb_emit_icall (mb, mono_marshal_alloc);
6865 mono_mb_emit_stloc (mb, 1);
6867 /* Update argument pointer */
6868 mono_mb_emit_ldarg (mb, argnum);
6869 mono_mb_emit_ldloc (mb, 1);
6870 mono_mb_emit_byte (mb, CEE_STIND_I);
6872 /* emit valuetype conversion code */
6873 emit_struct_conv (mb, klass, FALSE);
6875 mono_mb_patch_branch (mb, pos2);
6877 /* byval [Out] marshalling */
6879 /* FIXME: Handle null */
6882 mono_mb_emit_ldloc (mb, conv_arg);
6883 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6884 mono_mb_emit_stloc (mb, 0);
6887 mono_mb_emit_ldarg (mb, argnum);
6888 mono_mb_emit_stloc (mb, 1);
6890 /* emit valuetype conversion code */
6891 emit_struct_conv (mb, klass, FALSE);
6895 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6896 if (klass->delegate) {
6897 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6898 mono_mb_emit_stloc (mb, 3);
6902 /* The class can not have an automatic layout */
6903 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6904 mono_mb_emit_auto_layout_exception (mb, klass);
6908 mono_mb_emit_stloc (mb, 0);
6909 /* Check for null */
6910 mono_mb_emit_ldloc (mb, 0);
6911 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6912 mono_mb_emit_byte (mb, CEE_LDNULL);
6913 mono_mb_emit_stloc (mb, 3);
6914 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6916 mono_mb_patch_branch (mb, pos);
6919 mono_mb_emit_ldloc (mb, 0);
6920 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6921 mono_mb_emit_stloc (mb, 0);
6923 /* Allocate and set dest */
6924 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6925 mono_mb_emit_byte (mb, CEE_CONV_I);
6926 mono_mb_emit_icall (mb, mono_marshal_alloc);
6927 mono_mb_emit_byte (mb, CEE_DUP);
6928 mono_mb_emit_stloc (mb, 1);
6929 mono_mb_emit_stloc (mb, 3);
6931 emit_struct_conv (mb, klass, FALSE);
6933 mono_mb_patch_branch (mb, pos2);
6937 g_assert_not_reached ();
6944 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6945 MonoMarshalSpec *spec,
6946 int conv_arg, MonoType **conv_arg_type,
6947 MarshalAction action)
6949 MonoMethodBuilder *mb = m->mb;
6950 static MonoMethod *get_object_for_native_variant = NULL;
6951 static MonoMethod *get_native_variant_for_object = NULL;
6953 mono_init_com_types ();
6955 if (!get_object_for_native_variant)
6956 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6957 g_assert (get_object_for_native_variant);
6959 if (!get_native_variant_for_object)
6960 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6961 g_assert (get_native_variant_for_object);
6964 case MARSHAL_ACTION_CONV_IN: {
6965 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6968 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6970 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6972 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6975 mono_mb_emit_ldarg (mb, argnum);
6977 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6978 mono_mb_emit_ldloc_addr (mb, conv_arg);
6979 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6983 case MARSHAL_ACTION_CONV_OUT: {
6984 static MonoMethod *variant_clear = NULL;
6987 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6988 g_assert (variant_clear);
6991 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6992 mono_mb_emit_ldarg (mb, argnum);
6993 mono_mb_emit_ldloc_addr (mb, conv_arg);
6994 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6995 mono_mb_emit_byte (mb, CEE_STIND_REF);
6998 mono_mb_emit_ldloc_addr (mb, conv_arg);
6999 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7003 case MARSHAL_ACTION_PUSH:
7005 mono_mb_emit_ldloc_addr (mb, conv_arg);
7007 mono_mb_emit_ldloc (mb, conv_arg);
7010 case MARSHAL_ACTION_CONV_RESULT: {
7011 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7012 mono_mb_emit_exception_marshal_directive (mb, msg);
7016 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7017 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7020 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7022 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7024 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
7028 mono_mb_emit_ldarg (mb, argnum);
7030 mono_mb_emit_ldarg_addr (mb, argnum);
7031 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7032 mono_mb_emit_stloc (mb, conv_arg);
7036 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7037 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
7038 mono_mb_emit_ldloc (mb, conv_arg);
7039 mono_mb_emit_ldarg (mb, argnum);
7040 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7045 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7046 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7047 mono_mb_emit_exception_marshal_directive (mb, msg);
7052 g_assert_not_reached ();
7059 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
7061 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
7062 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
7064 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
7066 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7077 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7078 MonoMarshalSpec *spec,
7079 int conv_arg, MonoType **conv_arg_type,
7080 MarshalAction action)
7082 MonoMethodBuilder *mb = m->mb;
7083 MonoClass *klass = mono_class_from_mono_type (t);
7084 gboolean need_convert, need_free;
7085 MonoMarshalNative encoding;
7087 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7090 case MARSHAL_ACTION_CONV_IN:
7091 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7092 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7094 if (klass->element_class->blittable) {
7095 mono_mb_emit_ldarg (mb, argnum);
7097 mono_mb_emit_byte (mb, CEE_LDIND_I);
7098 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7099 mono_mb_emit_stloc (mb, conv_arg);
7102 guint32 label1, label2, label3;
7103 int index_var, src_var, dest_ptr, esize;
7104 MonoMarshalConv conv;
7105 gboolean is_string = FALSE;
7107 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7109 eklass = klass->element_class;
7111 if (eklass == mono_defaults.string_class) {
7113 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7115 else if (eklass == mono_defaults.stringbuilder_class) {
7117 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7122 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7123 mono_mb_emit_ldarg (mb, argnum);
7125 mono_mb_emit_byte (mb, CEE_LDIND_I);
7126 mono_mb_emit_stloc (mb, src_var);
7129 mono_mb_emit_ldloc (mb, src_var);
7130 mono_mb_emit_stloc (mb, conv_arg);
7131 mono_mb_emit_ldloc (mb, src_var);
7132 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7136 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7137 MonoException *exc = mono_get_exception_not_implemented (msg);
7138 g_warning ("%s", msg);
7140 mono_raise_exception (exc);
7145 esize = sizeof (gpointer);
7146 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7147 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7149 esize = mono_class_native_size (eklass, NULL);
7151 /* allocate space for the native struct and store the address */
7152 mono_mb_emit_icon (mb, esize);
7153 mono_mb_emit_ldloc (mb, src_var);
7154 mono_mb_emit_byte (mb, CEE_LDLEN);
7156 if (eklass == mono_defaults.string_class) {
7157 /* Make the array bigger for the terminating null */
7158 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7159 mono_mb_emit_byte (mb, CEE_ADD);
7161 mono_mb_emit_byte (mb, CEE_MUL);
7162 mono_mb_emit_byte (mb, CEE_PREFIX1);
7163 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7164 mono_mb_emit_stloc (mb, conv_arg);
7166 mono_mb_emit_ldloc (mb, conv_arg);
7167 mono_mb_emit_stloc (mb, dest_ptr);
7169 /* Emit marshalling loop */
7170 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7171 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7172 mono_mb_emit_stloc (mb, index_var);
7173 label2 = mono_mb_get_label (mb);
7174 mono_mb_emit_ldloc (mb, index_var);
7175 mono_mb_emit_ldloc (mb, src_var);
7176 mono_mb_emit_byte (mb, CEE_LDLEN);
7177 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7179 /* Emit marshalling code */
7182 mono_mb_emit_ldloc (mb, dest_ptr);
7183 mono_mb_emit_ldloc (mb, src_var);
7184 mono_mb_emit_ldloc (mb, index_var);
7185 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7186 mono_mb_emit_icall (mb, conv_to_icall (conv));
7187 mono_mb_emit_byte (mb, CEE_STIND_I);
7189 /* set the src_ptr */
7190 mono_mb_emit_ldloc (mb, src_var);
7191 mono_mb_emit_ldloc (mb, index_var);
7192 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7193 mono_mb_emit_stloc (mb, 0);
7196 mono_mb_emit_ldloc (mb, dest_ptr);
7197 mono_mb_emit_stloc (mb, 1);
7199 /* emit valuetype conversion code */
7200 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7203 mono_mb_emit_add_to_local (mb, index_var, 1);
7204 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7206 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7208 mono_mb_patch_branch (mb, label3);
7210 if (eklass == mono_defaults.string_class) {
7211 /* Null terminate */
7212 mono_mb_emit_ldloc (mb, dest_ptr);
7213 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7214 mono_mb_emit_byte (mb, CEE_STIND_REF);
7217 mono_mb_patch_branch (mb, label1);
7222 case MARSHAL_ACTION_CONV_OUT:
7223 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7224 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);
7225 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7228 if (need_convert || need_free) {
7229 /* FIXME: Optimize blittable case */
7231 guint32 label1, label2, label3;
7232 int index_var, src_ptr, loc, esize;
7234 eklass = klass->element_class;
7235 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7236 esize = sizeof (gpointer);
7237 else if (eklass == mono_defaults.char_class)
7238 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7240 esize = mono_class_native_size (eklass, NULL);
7241 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7242 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7245 mono_mb_emit_ldarg (mb, argnum);
7247 mono_mb_emit_byte (mb, CEE_LDIND_I);
7248 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7250 mono_mb_emit_ldloc (mb, conv_arg);
7251 mono_mb_emit_stloc (mb, src_ptr);
7253 /* Emit marshalling loop */
7254 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7255 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7256 mono_mb_emit_stloc (mb, index_var);
7257 label2 = mono_mb_get_label (mb);
7258 mono_mb_emit_ldloc (mb, index_var);
7259 mono_mb_emit_ldarg (mb, argnum);
7261 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7262 mono_mb_emit_byte (mb, CEE_LDLEN);
7263 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7265 /* Emit marshalling code */
7267 if (eklass == mono_defaults.stringbuilder_class) {
7268 gboolean need_free2;
7269 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7271 g_assert (conv != -1);
7274 mono_mb_emit_ldarg (mb, argnum);
7276 mono_mb_emit_byte (mb, CEE_LDIND_I);
7277 mono_mb_emit_ldloc (mb, index_var);
7278 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7281 mono_mb_emit_ldloc (mb, src_ptr);
7282 mono_mb_emit_byte (mb, CEE_LDIND_I);
7284 mono_mb_emit_icall (mb, conv_to_icall (conv));
7288 mono_mb_emit_ldloc (mb, src_ptr);
7289 mono_mb_emit_byte (mb, CEE_LDIND_I);
7291 mono_mb_emit_icall (mb, mono_marshal_free);
7294 else if (eklass == mono_defaults.string_class) {
7297 mono_mb_emit_ldloc (mb, src_ptr);
7298 mono_mb_emit_byte (mb, CEE_LDIND_I);
7300 mono_mb_emit_icall (mb, mono_marshal_free);
7305 /* set the src_ptr */
7306 mono_mb_emit_ldloc (mb, src_ptr);
7307 mono_mb_emit_stloc (mb, 0);
7310 mono_mb_emit_ldarg (mb, argnum);
7312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7313 mono_mb_emit_ldloc (mb, index_var);
7314 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7315 mono_mb_emit_stloc (mb, 1);
7317 /* emit valuetype conversion code */
7318 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7322 mono_mb_emit_ldloc (mb, src_ptr);
7323 mono_mb_emit_stloc (mb, loc);
7324 mono_mb_emit_ldloc (mb, loc);
7326 emit_struct_free (mb, eklass, loc);
7330 mono_mb_emit_add_to_local (mb, index_var, 1);
7331 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7333 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7335 mono_mb_patch_branch (mb, label1);
7336 mono_mb_patch_branch (mb, label3);
7339 if (klass->element_class->blittable) {
7340 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7342 mono_mb_emit_ldarg (mb, argnum);
7343 mono_mb_emit_ldloc (mb, conv_arg);
7344 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7349 case MARSHAL_ACTION_PUSH:
7351 mono_mb_emit_ldloc_addr (mb, conv_arg);
7353 mono_mb_emit_ldloc (mb, conv_arg);
7356 case MARSHAL_ACTION_CONV_RESULT:
7357 /* fixme: we need conversions here */
7358 mono_mb_emit_stloc (mb, 3);
7361 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7363 guint32 label1, label2, label3;
7364 int index_var, src_ptr, loc, esize, param_num, num_elem;
7365 MonoMarshalConv conv;
7366 gboolean is_string = FALSE;
7368 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7369 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7372 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7373 mono_mb_emit_exception_marshal_directive (mb, msg);
7377 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7378 mono_mb_emit_exception_marshal_directive (mb, msg);
7381 if (spec->native != MONO_NATIVE_LPARRAY) {
7382 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7383 mono_mb_emit_exception_marshal_directive (mb, msg);
7387 /* FIXME: t is from the method which is wrapped, not the delegate type */
7388 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7390 param_num = spec->data.array_data.param_num;
7391 num_elem = spec->data.array_data.num_elem;
7392 if (spec->data.array_data.elem_mult == 0)
7393 /* param_num is not specified */
7396 if (param_num == -1) {
7397 if (num_elem <= 0) {
7398 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7399 mono_mb_emit_exception_marshal_directive (mb, msg);
7404 /* FIXME: Optimize blittable case */
7406 eklass = klass->element_class;
7407 if (eklass == mono_defaults.string_class) {
7409 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7411 else if (eklass == mono_defaults.stringbuilder_class) {
7413 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7418 mono_marshal_load_type_info (eklass);
7421 esize = sizeof (gpointer);
7423 esize = mono_class_native_size (eklass, NULL);
7424 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7425 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7427 mono_mb_emit_byte (mb, CEE_LDNULL);
7428 mono_mb_emit_stloc (mb, conv_arg);
7430 /* Check param index */
7431 if (param_num != -1) {
7432 if (param_num >= m->sig->param_count) {
7433 char *msg = g_strdup ("Array size control parameter index is out of range.");
7434 mono_mb_emit_exception_marshal_directive (mb, msg);
7437 switch (m->sig->params [param_num]->type) {
7450 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7451 mono_mb_emit_exception_marshal_directive (mb, msg);
7458 mono_mb_emit_ldarg (mb, argnum);
7459 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7461 mono_mb_emit_ldarg (mb, argnum);
7462 mono_mb_emit_stloc (mb, src_ptr);
7464 /* Create managed array */
7466 * The LPArray marshalling spec says that sometimes param_num starts
7467 * from 1, sometimes it starts from 0. But MS seems to allways start
7471 if (param_num == -1) {
7472 mono_mb_emit_icon (mb, num_elem);
7474 mono_mb_emit_ldarg (mb, param_num);
7476 mono_mb_emit_icon (mb, num_elem);
7477 mono_mb_emit_byte (mb, CEE_ADD);
7479 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7482 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7483 mono_mb_emit_stloc (mb, conv_arg);
7485 if (eklass->blittable) {
7486 mono_mb_emit_ldloc (mb, conv_arg);
7487 mono_mb_emit_byte (mb, CEE_CONV_I);
7488 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7489 mono_mb_emit_byte (mb, CEE_ADD);
7490 mono_mb_emit_ldarg (mb, argnum);
7491 mono_mb_emit_ldloc (mb, conv_arg);
7492 mono_mb_emit_byte (mb, CEE_LDLEN);
7493 mono_mb_emit_icon (mb, esize);
7494 mono_mb_emit_byte (mb, CEE_MUL);
7495 mono_mb_emit_byte (mb, CEE_PREFIX1);
7496 mono_mb_emit_byte (mb, CEE_CPBLK);
7500 /* Emit marshalling loop */
7501 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7502 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7503 mono_mb_emit_stloc (mb, index_var);
7504 label2 = mono_mb_get_label (mb);
7505 mono_mb_emit_ldloc (mb, index_var);
7506 mono_mb_emit_ldloc (mb, conv_arg);
7507 mono_mb_emit_byte (mb, CEE_LDLEN);
7508 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7510 /* Emit marshalling code */
7512 g_assert (conv != -1);
7514 mono_mb_emit_ldloc (mb, conv_arg);
7515 mono_mb_emit_ldloc (mb, index_var);
7517 mono_mb_emit_ldloc (mb, src_ptr);
7518 mono_mb_emit_byte (mb, CEE_LDIND_I);
7520 mono_mb_emit_icall (mb, conv_to_icall (conv));
7521 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7524 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7525 mono_mb_emit_exception_marshal_directive (mb, msg);
7529 mono_mb_emit_add_to_local (mb, index_var, 1);
7530 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7532 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7534 mono_mb_patch_branch (mb, label1);
7535 mono_mb_patch_branch (mb, label3);
7539 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7541 guint32 label1, label2, label3;
7542 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7543 MonoMarshalConv conv;
7544 gboolean is_string = FALSE;
7547 /* Already handled in CONV_IN */
7550 /* These are already checked in CONV_IN */
7551 g_assert (!t->byref);
7552 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7553 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7555 param_num = spec->data.array_data.param_num;
7556 num_elem = spec->data.array_data.num_elem;
7558 if (spec->data.array_data.elem_mult == 0)
7559 /* param_num is not specified */
7562 if (param_num == -1) {
7563 if (num_elem <= 0) {
7564 g_assert_not_reached ();
7568 /* FIXME: Optimize blittable case */
7570 eklass = klass->element_class;
7571 if (eklass == mono_defaults.string_class) {
7573 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7575 else if (eklass == mono_defaults.stringbuilder_class) {
7577 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7582 mono_marshal_load_type_info (eklass);
7585 esize = sizeof (gpointer);
7587 esize = mono_class_native_size (eklass, NULL);
7589 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7590 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7593 mono_mb_emit_ldloc (mb, conv_arg);
7594 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7596 mono_mb_emit_ldarg (mb, argnum);
7597 mono_mb_emit_stloc (mb, dest_ptr);
7599 if (eklass->blittable) {
7601 mono_mb_emit_ldarg (mb, argnum);
7603 mono_mb_emit_ldloc (mb, conv_arg);
7604 mono_mb_emit_byte (mb, CEE_CONV_I);
7605 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7606 mono_mb_emit_byte (mb, CEE_ADD);
7608 mono_mb_emit_ldloc (mb, conv_arg);
7609 mono_mb_emit_byte (mb, CEE_LDLEN);
7610 mono_mb_emit_icon (mb, esize);
7611 mono_mb_emit_byte (mb, CEE_MUL);
7612 mono_mb_emit_byte (mb, CEE_PREFIX1);
7613 mono_mb_emit_byte (mb, CEE_CPBLK);
7617 /* Emit marshalling loop */
7618 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7619 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7620 mono_mb_emit_stloc (mb, index_var);
7621 label2 = mono_mb_get_label (mb);
7622 mono_mb_emit_ldloc (mb, index_var);
7623 mono_mb_emit_ldloc (mb, conv_arg);
7624 mono_mb_emit_byte (mb, CEE_LDLEN);
7625 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7627 /* Emit marshalling code */
7629 g_assert (conv != -1);
7632 mono_mb_emit_ldloc (mb, dest_ptr);
7635 mono_mb_emit_ldloc (mb, conv_arg);
7636 mono_mb_emit_ldloc (mb, index_var);
7638 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7640 mono_mb_emit_icall (mb, conv_to_icall (conv));
7641 mono_mb_emit_byte (mb, CEE_STIND_I);
7644 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7645 mono_mb_emit_exception_marshal_directive (mb, msg);
7649 mono_mb_emit_add_to_local (mb, index_var, 1);
7650 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7652 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7654 mono_mb_patch_branch (mb, label1);
7655 mono_mb_patch_branch (mb, label3);
7659 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7661 guint32 label1, label2, label3;
7662 int index_var, src, dest, esize;
7663 MonoMarshalConv conv = -1;
7664 gboolean is_string = FALSE;
7666 g_assert (!t->byref);
7668 eklass = klass->element_class;
7670 mono_marshal_load_type_info (eklass);
7672 if (eklass == mono_defaults.string_class) {
7674 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7677 g_assert_not_reached ();
7681 esize = sizeof (gpointer);
7682 else if (eklass == mono_defaults.char_class)
7683 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7685 esize = mono_class_native_size (eklass, NULL);
7687 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7688 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7690 mono_mb_emit_stloc (mb, src);
7691 mono_mb_emit_ldloc (mb, src);
7692 mono_mb_emit_stloc (mb, 3);
7694 /* Check for null */
7695 mono_mb_emit_ldloc (mb, src);
7696 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7698 /* Allocate native array */
7699 mono_mb_emit_icon (mb, esize);
7700 mono_mb_emit_ldloc (mb, src);
7701 mono_mb_emit_byte (mb, CEE_LDLEN);
7703 if (eklass == mono_defaults.string_class) {
7704 /* Make the array bigger for the terminating null */
7705 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7706 mono_mb_emit_byte (mb, CEE_ADD);
7708 mono_mb_emit_byte (mb, CEE_MUL);
7709 mono_mb_emit_icall (mb, mono_marshal_alloc);
7710 mono_mb_emit_stloc (mb, dest);
7711 mono_mb_emit_ldloc (mb, dest);
7712 mono_mb_emit_stloc (mb, 3);
7714 /* Emit marshalling loop */
7715 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7716 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7717 mono_mb_emit_stloc (mb, index_var);
7718 label2 = mono_mb_get_label (mb);
7719 mono_mb_emit_ldloc (mb, index_var);
7720 mono_mb_emit_ldloc (mb, src);
7721 mono_mb_emit_byte (mb, CEE_LDLEN);
7722 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7724 /* Emit marshalling code */
7726 g_assert (conv != -1);
7729 mono_mb_emit_ldloc (mb, dest);
7732 mono_mb_emit_ldloc (mb, src);
7733 mono_mb_emit_ldloc (mb, index_var);
7735 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7737 mono_mb_emit_icall (mb, conv_to_icall (conv));
7738 mono_mb_emit_byte (mb, CEE_STIND_I);
7741 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7742 mono_mb_emit_exception_marshal_directive (mb, msg);
7746 mono_mb_emit_add_to_local (mb, index_var, 1);
7747 mono_mb_emit_add_to_local (mb, dest, esize);
7749 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7751 mono_mb_patch_branch (mb, label3);
7752 mono_mb_patch_branch (mb, label1);
7756 g_assert_not_reached ();
7763 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7764 MonoMarshalSpec *spec,
7765 int conv_arg, MonoType **conv_arg_type,
7766 MarshalAction action)
7768 MonoMethodBuilder *mb = m->mb;
7771 case MARSHAL_ACTION_CONV_IN: {
7772 MonoType *local_type;
7774 guint8 ldc_op = CEE_LDC_I4_1;
7777 local_type = &mono_defaults.int32_class->byval_arg;
7779 switch (spec->native) {
7780 case MONO_NATIVE_I1:
7781 case MONO_NATIVE_U1:
7782 local_type = &mono_defaults.byte_class->byval_arg;
7784 case MONO_NATIVE_VARIANTBOOL:
7785 local_type = &mono_defaults.int16_class->byval_arg;
7786 ldc_op = CEE_LDC_I4_M1;
7788 case MONO_NATIVE_BOOLEAN:
7789 local_type = &mono_defaults.int32_class->byval_arg;
7792 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7793 local_type = &mono_defaults.int32_class->byval_arg;
7798 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7800 *conv_arg_type = local_type;
7801 conv_arg = mono_mb_add_local (mb, local_type);
7803 mono_mb_emit_ldarg (mb, argnum);
7805 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7806 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7807 mono_mb_emit_byte (mb, ldc_op);
7808 mono_mb_emit_stloc (mb, conv_arg);
7809 mono_mb_patch_branch (mb, label_false);
7814 case MARSHAL_ACTION_CONV_OUT:
7816 int label_false, label_end;
7820 mono_mb_emit_ldarg (mb, argnum);
7821 mono_mb_emit_ldloc (mb, conv_arg);
7823 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7824 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7826 label_end = mono_mb_emit_branch (mb, CEE_BR);
7827 mono_mb_patch_branch (mb, label_false);
7828 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7829 mono_mb_patch_branch (mb, label_end);
7831 mono_mb_emit_byte (mb, CEE_STIND_I1);
7835 case MARSHAL_ACTION_PUSH:
7837 mono_mb_emit_ldloc_addr (mb, conv_arg);
7839 mono_mb_emit_ldloc (mb, conv_arg);
7841 mono_mb_emit_ldarg (mb, argnum);
7844 case MARSHAL_ACTION_CONV_RESULT:
7845 /* maybe we need to make sure that it fits within 8 bits */
7846 mono_mb_emit_stloc (mb, 3);
7849 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7850 MonoClass* conv_arg_class = mono_defaults.int32_class;
7851 guint8 ldop = CEE_LDIND_I4;
7852 int label_null, label_false;
7854 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7857 switch (spec->native) {
7858 case MONO_NATIVE_I1:
7859 case MONO_NATIVE_U1:
7860 conv_arg_class = mono_defaults.byte_class;
7861 ldop = CEE_LDIND_I1;
7863 case MONO_NATIVE_VARIANTBOOL:
7864 conv_arg_class = mono_defaults.int16_class;
7865 ldop = CEE_LDIND_I2;
7867 case MONO_NATIVE_BOOLEAN:
7870 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7875 *conv_arg_type = &conv_arg_class->this_arg;
7877 *conv_arg_type = &conv_arg_class->byval_arg;
7880 mono_mb_emit_ldarg (mb, argnum);
7884 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7885 mono_mb_emit_ldarg (mb, argnum);
7886 mono_mb_emit_byte (mb, ldop);
7890 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7891 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7892 mono_mb_emit_stloc (mb, conv_arg);
7893 mono_mb_patch_branch (mb, label_false);
7896 mono_mb_patch_branch (mb, label_null);
7900 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7901 guint8 stop = CEE_STIND_I4;
7902 guint8 ldc_op = CEE_LDC_I4_1;
7903 int label_null,label_false, label_end;;
7908 switch (spec->native) {
7909 case MONO_NATIVE_I1:
7910 case MONO_NATIVE_U1:
7911 stop = CEE_STIND_I1;
7913 case MONO_NATIVE_VARIANTBOOL:
7914 stop = CEE_STIND_I2;
7915 ldc_op = CEE_LDC_I4_M1;
7923 mono_mb_emit_ldarg (mb, argnum);
7924 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7926 mono_mb_emit_ldarg (mb, argnum);
7927 mono_mb_emit_ldloc (mb, conv_arg);
7929 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7930 mono_mb_emit_byte (mb, ldc_op);
7931 label_end = mono_mb_emit_branch (mb, CEE_BR);
7933 mono_mb_patch_branch (mb, label_false);
7934 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7935 mono_mb_patch_branch (mb, label_end);
7937 mono_mb_emit_byte (mb, stop);
7938 mono_mb_patch_branch (mb, label_null);
7943 g_assert_not_reached ();
7950 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7951 MonoMarshalSpec *spec, int conv_arg,
7952 MonoType **conv_arg_type, MarshalAction action)
7954 MonoMethodBuilder *mb = m->mb;
7957 case MARSHAL_ACTION_CONV_IN:
7958 /* MS seems to allow this in some cases, ie. bxc #158 */
7960 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7961 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7962 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7967 case MARSHAL_ACTION_PUSH:
7968 mono_mb_emit_ldarg (mb, argnum);
7971 case MARSHAL_ACTION_CONV_RESULT:
7972 /* no conversions necessary */
7973 mono_mb_emit_stloc (mb, 3);
7984 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7985 MonoMarshalSpec *spec, int conv_arg,
7986 MonoType **conv_arg_type, MarshalAction action)
7988 MonoMethodBuilder *mb = m->mb;
7991 case MARSHAL_ACTION_PUSH:
7992 /* fixme: dont know how to marshal that. We cant simply
7993 * convert it to a one byte UTF8 character, because an
7994 * unicode character may need more that one byte in UTF8 */
7995 mono_mb_emit_ldarg (mb, argnum);
7998 case MARSHAL_ACTION_CONV_RESULT:
7999 /* fixme: we need conversions here */
8000 mono_mb_emit_stloc (mb, 3);
8011 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
8012 MonoMarshalSpec *spec, int conv_arg,
8013 MonoType **conv_arg_type, MarshalAction action)
8015 MonoMethodBuilder *mb = m->mb;
8018 case MARSHAL_ACTION_PUSH:
8019 mono_mb_emit_ldarg (mb, argnum);
8022 case MARSHAL_ACTION_CONV_RESULT:
8023 /* no conversions necessary */
8024 mono_mb_emit_stloc (mb, 3);
8035 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
8036 MonoMarshalSpec *spec, int conv_arg,
8037 MonoType **conv_arg_type, MarshalAction action)
8039 /* Ensure that we have marshalling info for this param */
8040 mono_marshal_load_type_info (mono_class_from_mono_type (t));
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);
8111 * mono_marshal_emit_native_wrapper:
8112 * @image: the image to use for looking up custom marshallers
8113 * @sig: The signature of the native function
8114 * @piinfo: Marshalling information
8115 * @mspecs: Marshalling information
8116 * @aot: whenever the created method will be compiled by the AOT compiler
8117 * @method: if non-NULL, the pinvoke method to call
8118 * @check_exceptions: Whenever to check for pending exceptions after the native call
8120 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8123 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8125 EmitMarshalContext m;
8126 MonoMethodSignature *csig;
8128 int i, argnum, *tmp_locals;
8130 static MonoMethodSignature *get_last_error_sig = NULL;
8135 /* we copy the signature, so that we can set pinvoke to 0 */
8136 csig = signature_dup (mb->method->klass->image, sig);
8141 /* we allocate local for use with emit_struct_conv() */
8142 /* allocate local 0 (pointer) src_ptr */
8143 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8144 /* allocate local 1 (pointer) dst_ptr */
8145 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8146 /* allocate local 2 (boolean) delete_old */
8147 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8149 /* delete_old = FALSE */
8150 mono_mb_emit_icon (mb, 0);
8151 mono_mb_emit_stloc (mb, 2);
8153 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8154 /* allocate local 3 to store the return value */
8155 mono_mb_add_local (mb, sig->ret);
8158 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8159 /* Return type custom marshaling */
8161 * Since we can't determine the return type of the unmanaged function,
8162 * we assume it returns a pointer, and pass that pointer to
8163 * MarshalNativeToManaged.
8165 csig->ret = &mono_defaults.int_class->byval_arg;
8168 /* we first do all conversions */
8169 tmp_locals = alloca (sizeof (int) * sig->param_count);
8170 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8172 for (i = 0; i < sig->param_count; i ++) {
8173 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8176 /* push all arguments */
8179 mono_mb_emit_byte (mb, CEE_LDARG_0);
8181 for (i = 0; i < sig->param_count; i++) {
8182 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8185 /* call the native method */
8186 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8188 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8190 g_assert_not_reached ();
8195 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8196 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8197 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8198 mono_mb_emit_calli (mb, csig);
8200 mono_mb_emit_native_call (mb, csig, func);
8204 /* Set LastError if needed */
8205 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8206 if (!get_last_error_sig) {
8207 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8208 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8209 get_last_error_sig->pinvoke = 1;
8214 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8215 * clobber its value.
8217 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8218 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8220 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8224 /* convert the result */
8225 if (!sig->ret->byref) {
8226 MonoMarshalSpec *spec = mspecs [0];
8227 type = sig->ret->type;
8229 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8230 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8235 case MONO_TYPE_VOID:
8237 case MONO_TYPE_VALUETYPE:
8238 klass = sig->ret->data.klass;
8239 if (klass->enumtype) {
8240 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8243 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8257 case MONO_TYPE_FNPTR:
8258 case MONO_TYPE_STRING:
8259 case MONO_TYPE_CLASS:
8260 case MONO_TYPE_OBJECT:
8261 case MONO_TYPE_BOOLEAN:
8262 case MONO_TYPE_ARRAY:
8263 case MONO_TYPE_SZARRAY:
8264 case MONO_TYPE_CHAR:
8266 case MONO_TYPE_GENERICINST:
8267 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8269 case MONO_TYPE_TYPEDBYREF:
8271 g_warning ("return type 0x%02x unknown", sig->ret->type);
8272 g_assert_not_reached ();
8276 mono_mb_emit_stloc (mb, 3);
8280 * Need to call this after converting the result since MONO_VTADDR needs
8281 * to be adjacent to the call instruction.
8283 if (check_exceptions)
8284 emit_thread_interrupt_checkpoint (mb);
8286 /* we need to convert byref arguments back and free string arrays */
8287 for (i = 0; i < sig->param_count; i++) {
8288 MonoType *t = sig->params [i];
8289 MonoMarshalSpec *spec = mspecs [i + 1];
8291 argnum = i + sig->hasthis;
8293 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8294 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8299 case MONO_TYPE_STRING:
8300 case MONO_TYPE_VALUETYPE:
8301 case MONO_TYPE_CLASS:
8302 case MONO_TYPE_OBJECT:
8303 case MONO_TYPE_SZARRAY:
8304 case MONO_TYPE_BOOLEAN:
8305 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8310 if (!MONO_TYPE_IS_VOID(sig->ret))
8311 mono_mb_emit_ldloc (mb, 3);
8313 mono_mb_emit_byte (mb, CEE_RET);
8316 G_GNUC_UNUSED static void
8317 code_for (MonoMethod *method) {
8318 MonoMethodHeader *header = mono_method_get_header (method);
8319 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));
8323 * mono_marshal_get_native_wrapper:
8324 * @method: The MonoMethod to wrap.
8325 * @check_exceptions: Whenever to check for pending exceptions
8327 * generates IL code for the pinvoke wrapper (the generated method
8328 * calls the unmanaged code in piinfo->addr)
8329 * The wrapper info for the wrapper is a WrapperInfo structure.
8332 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8334 MonoMethodSignature *sig, *csig;
8335 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8336 MonoMethodBuilder *mb;
8337 MonoMarshalSpec **mspecs;
8340 gboolean pinvoke = FALSE;
8343 const char *exc_class = "MissingMethodException";
8344 const char *exc_arg = NULL;
8347 g_assert (method != NULL);
8348 g_assert (mono_method_signature (method)->pinvoke);
8351 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8353 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8354 if ((res = mono_marshal_find_in_cache (cache, method)))
8357 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8359 return mono_cominterop_get_native_wrapper (method);
8361 g_assert_not_reached ();
8365 sig = mono_method_signature (method);
8367 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8368 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8371 if (!piinfo->addr) {
8373 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8374 exc_arg = "Method contains unsupported native code";
8376 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8378 piinfo->addr = mono_lookup_internal_call (method);
8381 /* hack - redirect certain string constructors to CreateString */
8382 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8383 g_assert (!pinvoke);
8384 g_assert (method->string_ctor);
8385 g_assert (sig->hasthis);
8387 /* CreateString returns a value */
8388 csig = signature_dup (method->klass->image, sig);
8389 csig->ret = &mono_defaults.string_class->byval_arg;
8393 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8394 if (!strcmp ("CreateString", res->name) &&
8395 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8398 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8399 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8401 /* create a wrapper to preserve .ctor in stack trace */
8402 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8404 mono_mb_emit_byte (mb, CEE_LDARG_0);
8405 for (i = 1; i <= csig->param_count; i++)
8406 mono_mb_emit_ldarg (mb, i);
8407 mono_mb_emit_managed_call (mb, res, NULL);
8408 mono_mb_emit_byte (mb, CEE_RET);
8410 /* use native_wrapper_cache because internal calls are looked up there */
8411 res = mono_mb_create_and_cache (cache, method,
8412 mb, csig, csig->param_count + 1);
8416 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRING_CTOR);
8417 info->d.string_ctor.method = method;
8419 mono_marshal_set_wrapper_info (res, info);
8425 /* exception will be thrown */
8426 piinfo->addr = NULL;
8427 g_warning ("cannot find CreateString for .ctor");
8430 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8432 mb->method->save_lmf = 1;
8435 * In AOT mode and embedding scenarios, it is possible that the icall is not
8436 * registered in the runtime doing the AOT compilation.
8438 if (!piinfo->addr && !aot) {
8439 mono_mb_emit_exception (mb, exc_class, exc_arg);
8440 csig = signature_dup (method->klass->image, sig);
8442 res = mono_mb_create_and_cache (cache, method,
8443 mb, csig, csig->param_count + 16);
8448 /* internal calls: we simply push all arguments and call the method (no conversions) */
8449 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8451 csig = signature_dup_add_this (sig, method->klass);
8453 csig = signature_dup (method->klass->image, sig);
8455 /* hack - string constructors returns a value */
8456 if (method->string_ctor)
8457 csig->ret = &mono_defaults.string_class->byval_arg;
8463 * Add a null check since public icalls can be called with 'call' which
8464 * does no such check.
8466 mono_mb_emit_byte (mb, CEE_LDARG_0);
8467 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8468 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8469 mono_mb_patch_branch (mb, pos);
8471 mono_mb_emit_byte (mb, CEE_LDARG_0);
8474 for (i = 0; i < sig->param_count; i++)
8475 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8479 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8480 mono_mb_emit_calli (mb, csig);
8482 g_assert (piinfo->addr);
8483 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8485 if (check_exceptions)
8486 emit_thread_interrupt_checkpoint (mb);
8487 mono_mb_emit_byte (mb, CEE_RET);
8489 csig = signature_dup (method->klass->image, csig);
8491 res = mono_mb_create_and_cache (cache, method,
8492 mb, csig, csig->param_count + 16);
8494 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8495 info->d.managed_to_native.method = method;
8496 mono_marshal_set_wrapper_info (res, info);
8504 g_assert (piinfo->addr);
8506 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8507 mono_method_get_marshal_info (method, mspecs);
8509 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8511 csig = signature_dup (method->klass->image, sig);
8513 res = mono_mb_create_and_cache (cache, method,
8514 mb, csig, csig->param_count + 16);
8517 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8518 info->d.managed_to_native.method = method;
8519 mono_marshal_set_wrapper_info (res, info);
8521 for (i = sig->param_count; i >= 0; i--)
8523 mono_metadata_free_marshal_spec (mspecs [i]);
8526 /* code_for (res); */
8532 * mono_marshal_get_native_func_wrapper:
8533 * @image: The image to use for memory allocation and for looking up custom marshallers.
8534 * @sig: The signature of the function
8535 * @func: The native function to wrap
8537 * Returns a wrapper method around native functions, similar to the pinvoke
8541 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8542 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8544 MonoMethodSignature *csig;
8546 MonoMethodBuilder *mb;
8551 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8552 if ((res = mono_marshal_find_in_cache (cache, func)))
8555 name = g_strdup_printf ("wrapper_native_%p", func);
8556 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8557 mb->method->save_lmf = 1;
8559 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8561 csig = signature_dup (image, sig);
8563 res = mono_mb_create_and_cache (cache, func,
8564 mb, csig, csig->param_count + 16);
8567 mono_marshal_set_wrapper_info (res, NULL);
8569 /* code_for (res); */
8575 * mono_marshal_emit_managed_wrapper:
8577 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8578 * the delegate which wraps the managed method to be called. For closed delegates,
8579 * it could have fewer parameters than the method it wraps.
8580 * THIS_LOC is the memory location where the target of the delegate is stored.
8583 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8585 MonoMethodSignature *sig, *csig;
8587 gboolean closed = FALSE;
8592 /* allocate local 0 (pointer) src_ptr */
8593 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8594 /* allocate local 1 (pointer) dst_ptr */
8595 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8596 /* allocate local 2 (boolean) delete_old */
8597 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8599 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8600 /* Closed delegate */
8601 g_assert (sig->param_count == invoke_sig->param_count + 1);
8603 /* Use a new signature without the first argument */
8604 sig = mono_metadata_signature_dup (sig);
8605 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8606 sig->param_count --;
8609 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8610 /* allocate local 3 to store the return value */
8611 mono_mb_add_local (mb, sig->ret);
8614 mono_mb_emit_icon (mb, 0);
8615 mono_mb_emit_stloc (mb, 2);
8618 * Might need to attach the thread to the JIT or change the
8619 * domain for the callback.
8621 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8622 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8624 /* we first do all conversions */
8625 tmp_locals = alloca (sizeof (int) * sig->param_count);
8626 for (i = 0; i < sig->param_count; i ++) {
8627 MonoType *t = sig->params [i];
8630 case MONO_TYPE_OBJECT:
8631 case MONO_TYPE_CLASS:
8632 case MONO_TYPE_VALUETYPE:
8633 case MONO_TYPE_ARRAY:
8634 case MONO_TYPE_SZARRAY:
8635 case MONO_TYPE_STRING:
8636 case MONO_TYPE_BOOLEAN:
8637 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8646 emit_thread_interrupt_checkpoint (mb);
8649 if (target_handle) {
8650 mono_mb_emit_icon (mb, (gint32)target_handle);
8651 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8654 g_assert_not_reached ();
8656 } else if (closed) {
8657 mono_mb_emit_icon (mb, (gint32)target_handle);
8658 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8661 for (i = 0; i < sig->param_count; i++) {
8662 MonoType *t = sig->params [i];
8664 if (tmp_locals [i]) {
8666 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8668 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8671 mono_mb_emit_ldarg (mb, i);
8674 mono_mb_emit_managed_call (mb, method, NULL);
8676 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8677 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8678 } else if (!sig->ret->byref) {
8679 switch (sig->ret->type) {
8680 case MONO_TYPE_VOID:
8682 case MONO_TYPE_BOOLEAN:
8685 case MONO_TYPE_CHAR:
8697 case MONO_TYPE_OBJECT:
8698 mono_mb_emit_stloc (mb, 3);
8700 case MONO_TYPE_STRING:
8701 csig->ret = &mono_defaults.int_class->byval_arg;
8702 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8704 case MONO_TYPE_VALUETYPE:
8705 case MONO_TYPE_CLASS:
8706 case MONO_TYPE_SZARRAY:
8707 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8710 g_warning ("return type 0x%02x unknown", sig->ret->type);
8711 g_assert_not_reached ();
8714 mono_mb_emit_stloc (mb, 3);
8717 /* Convert byref arguments back */
8718 for (i = 0; i < sig->param_count; i ++) {
8719 MonoType *t = sig->params [i];
8720 MonoMarshalSpec *spec = mspecs [i + 1];
8722 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8723 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8725 else if (t->byref) {
8727 case MONO_TYPE_CLASS:
8728 case MONO_TYPE_VALUETYPE:
8729 case MONO_TYPE_OBJECT:
8730 case MONO_TYPE_STRING:
8731 case MONO_TYPE_BOOLEAN:
8732 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8736 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8737 /* The [Out] information is encoded in the delegate signature */
8739 case MONO_TYPE_SZARRAY:
8740 case MONO_TYPE_CLASS:
8741 case MONO_TYPE_VALUETYPE:
8742 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8745 g_assert_not_reached ();
8750 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8751 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8753 if (m->retobj_var) {
8754 mono_mb_emit_ldloc (mb, m->retobj_var);
8755 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8756 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8759 if (!MONO_TYPE_IS_VOID(sig->ret))
8760 mono_mb_emit_ldloc (mb, 3);
8761 mono_mb_emit_byte (mb, CEE_RET);
8770 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8772 MonoMethodSignature *sig;
8777 * Under windows, delegates passed to native code must use the STDCALL
8778 * calling convention.
8780 csig->call_convention = MONO_CALL_STDCALL;
8783 sig = mono_method_signature (method);
8785 /* Change default calling convention if needed */
8786 /* Why is this a modopt ? */
8787 if (sig->ret && sig->ret->num_mods) {
8788 for (i = 0; i < sig->ret->num_mods; ++i) {
8789 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8790 g_assert (cmod_class);
8791 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8792 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8793 csig->call_convention = MONO_CALL_C;
8794 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8795 csig->call_convention = MONO_CALL_STDCALL;
8796 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8797 csig->call_convention = MONO_CALL_FASTCALL;
8798 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8799 csig->call_convention = MONO_CALL_THISCALL;
8806 * generates IL code to call managed methods from unmanaged code
8807 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8810 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8812 static MonoClass *UnmanagedFunctionPointerAttribute;
8813 MonoMethodSignature *sig, *csig, *invoke_sig;
8814 MonoMethodBuilder *mb;
8815 MonoMethod *res, *invoke;
8816 MonoMarshalSpec **mspecs;
8817 MonoMethodPInvoke piinfo;
8820 EmitMarshalContext m;
8822 g_assert (method != NULL);
8823 g_assert (!mono_method_signature (method)->pinvoke);
8826 * FIXME: Should cache the method+delegate type pair, since the same method
8827 * could be called with different delegates, thus different marshalling
8830 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8831 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8834 invoke = mono_get_delegate_invoke (delegate_klass);
8835 invoke_sig = mono_method_signature (invoke);
8837 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8838 mono_method_get_marshal_info (invoke, mspecs);
8840 sig = mono_method_signature (method);
8842 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8844 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8845 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8847 /* we copy the signature, so that we can modify it */
8849 /* Need to free this later */
8850 csig = mono_metadata_signature_dup (invoke_sig);
8852 csig = signature_dup (method->klass->image, invoke_sig);
8861 m.image = method->klass->image;
8863 mono_marshal_set_callconv_from_modopt (invoke, csig);
8865 /* Handle the UnmanagedFunctionPointerAttribute */
8866 if (!UnmanagedFunctionPointerAttribute)
8867 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8869 /* The attribute is only available in Net 2.0 */
8870 if (UnmanagedFunctionPointerAttribute) {
8871 MonoCustomAttrInfo *cinfo;
8872 MonoCustomAttrEntry *attr;
8875 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8876 * contents of the attribute without constructing it, as that might not be
8877 * possible when running in cross-compiling mode.
8879 cinfo = mono_custom_attrs_from_class (delegate_klass);
8882 for (i = 0; i < cinfo->num_attrs; ++i) {
8883 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8884 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8885 attr = &cinfo->attrs [i];
8891 MonoArray *typed_args, *named_args;
8892 CattrNamedArg *arginfo;
8896 MonoBoolean set_last_error = 0;
8897 MonoBoolean best_fit_mapping = 0;
8898 MonoBoolean throw_on_unmappable = 0;
8900 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8902 g_assert (mono_array_length (typed_args) == 1);
8905 o = mono_array_get (typed_args, MonoObject*, 0);
8906 call_conv = *(gint32*)mono_object_unbox (o);
8909 for (i = 0; i < mono_array_length (named_args); ++i) {
8910 CattrNamedArg *narg = &arginfo [i];
8912 o = mono_array_get (named_args, MonoObject*, i);
8914 g_assert (narg->field);
8915 if (!strcmp (narg->field->name, "CharSet")) {
8916 charset = *(gint32*)mono_object_unbox (o);
8917 } else if (!strcmp (narg->field->name, "SetLastError")) {
8918 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8919 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8920 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8921 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8922 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8924 g_assert_not_reached ();
8930 memset (&piinfo, 0, sizeof (piinfo));
8932 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8934 csig->call_convention = call_conv - 1;
8937 if (cinfo && !cinfo->cached)
8938 mono_custom_attrs_free (cinfo);
8941 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8943 if (!target_handle) {
8946 res = mono_mb_create_and_cache (cache, method,
8947 mb, csig, sig->param_count + 16);
8948 // FIXME: Associate it with the method+delegate_klass pair
8949 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
8950 info->d.native_to_managed.method = method;
8951 info->d.native_to_managed.klass = delegate_klass;
8952 mono_marshal_set_wrapper_info (res, info);
8955 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8959 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8961 mono_metadata_free_marshal_spec (mspecs [i]);
8964 /* code_for (res); */
8970 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8973 MonoMethodSignature *sig;
8974 MonoMethodBuilder *mb;
8979 method = mono_get_method (image, token, NULL);
8982 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8983 MonoMethodSignature *csig;
8984 MonoMarshalSpec **mspecs;
8985 EmitMarshalContext m;
8987 sig = mono_method_signature (method);
8988 g_assert (!sig->hasthis);
8990 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8991 mono_method_get_marshal_info (method, mspecs);
8993 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8994 csig = signature_dup (image, sig);
9005 mono_marshal_set_callconv_from_modopt (method, csig);
9007 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9009 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9012 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
9015 for (i = sig->param_count; i >= 0; i--)
9017 mono_metadata_free_marshal_spec (mspecs [i]);
9020 return mono_compile_method (method);
9023 sig = mono_method_signature (method);
9024 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9026 param_count = sig->param_count + sig->hasthis;
9027 for (i = 0; i < param_count; i++)
9028 mono_mb_emit_ldarg (mb, i);
9030 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9031 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9033 mono_mb_emit_op (mb, CEE_CALL, method);
9034 mono_mb_emit_byte (mb, CEE_RET);
9037 method = mono_mb_create_method (mb, sig, param_count);
9040 return mono_compile_method (method);
9043 static MonoReflectionType *
9044 type_from_handle (MonoType *handle)
9046 MonoDomain *domain = mono_domain_get ();
9047 MonoClass *klass = mono_class_from_mono_type (handle);
9049 MONO_ARCH_SAVE_REGS;
9051 mono_class_init (klass);
9052 return mono_type_get_object (domain, handle);
9056 * This does the equivalent of mono_object_castclass_with_cache.
9057 * The wrapper info for the wrapper is a WrapperInfo structure.
9060 mono_marshal_get_castclass_with_cache (void)
9062 static MonoMethod *cached;
9064 MonoMethodBuilder *mb;
9065 MonoMethodSignature *sig;
9066 int return_null_pos, cache_miss_pos, invalid_cast_pos;
9072 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9073 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9074 sig->params [0] = &mono_defaults.object_class->byval_arg;
9075 sig->params [1] = &mono_defaults.int_class->byval_arg;
9076 sig->params [2] = &mono_defaults.int_class->byval_arg;
9077 sig->ret = &mono_defaults.object_class->byval_arg;
9080 /* allocate local 0 (pointer) obj_vtable */
9081 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9084 mono_mb_emit_ldarg (mb, 0);
9085 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9087 /*obj_vtable = obj->vtable;*/
9088 mono_mb_emit_ldarg (mb, 0);
9089 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9090 mono_mb_emit_byte (mb, CEE_LDIND_I);
9091 mono_mb_emit_stloc (mb, 0);
9094 mono_mb_emit_ldarg (mb, 2);
9095 mono_mb_emit_byte (mb, CEE_LDIND_I);
9096 mono_mb_emit_ldloc (mb, 0);
9098 /*if (*cache == obj_vtable)*/
9099 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9102 mono_mb_emit_ldarg (mb, 0);
9103 mono_mb_emit_byte (mb, CEE_RET);
9105 mono_mb_patch_branch (mb, cache_miss_pos);
9106 /*if (mono_object_isinst (obj, klass)) */
9107 mono_mb_emit_ldarg (mb, 0);
9108 mono_mb_emit_ldarg (mb, 1);
9109 mono_mb_emit_icall (mb, mono_object_isinst);
9110 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9112 /**cache = obj_vtable;*/
9113 mono_mb_emit_ldarg (mb, 2);
9114 mono_mb_emit_ldloc (mb, 0);
9115 mono_mb_emit_byte (mb, CEE_STIND_I);
9118 mono_mb_emit_ldarg (mb, 0);
9119 mono_mb_emit_byte (mb, CEE_RET);
9122 mono_mb_patch_branch (mb, invalid_cast_pos);
9123 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9126 mono_mb_patch_branch (mb, return_null_pos);
9127 mono_mb_emit_byte (mb, CEE_LDNULL);
9128 mono_mb_emit_byte (mb, CEE_RET);
9130 res = mono_mb_create_method (mb, sig, 8);
9131 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9132 mono_marshal_set_wrapper_info (res, info);
9135 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9136 mono_free_method (res);
9137 mono_metadata_free_method_signature (sig);
9145 * This does the equivalent of mono_object_isinst_with_cache.
9146 * The wrapper info for the wrapper is a WrapperInfo structure.
9149 mono_marshal_get_isinst_with_cache (void)
9151 static MonoMethod *cached;
9153 MonoMethodBuilder *mb;
9154 MonoMethodSignature *sig;
9155 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9161 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9162 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9163 sig->params [0] = &mono_defaults.object_class->byval_arg;
9164 sig->params [1] = &mono_defaults.int_class->byval_arg;
9165 sig->params [2] = &mono_defaults.int_class->byval_arg;
9166 sig->ret = &mono_defaults.object_class->byval_arg;
9169 /* allocate local 0 (pointer) obj_vtable */
9170 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9171 /* allocate local 1 (pointer) cached_vtable */
9172 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9175 mono_mb_emit_ldarg (mb, 0);
9176 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9178 /*obj_vtable = obj->vtable;*/
9179 mono_mb_emit_ldarg (mb, 0);
9180 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9181 mono_mb_emit_byte (mb, CEE_LDIND_I);
9182 mono_mb_emit_stloc (mb, 0);
9184 /* cached_vtable = *cache*/
9185 mono_mb_emit_ldarg (mb, 2);
9186 mono_mb_emit_byte (mb, CEE_LDIND_I);
9187 mono_mb_emit_stloc (mb, 1);
9189 mono_mb_emit_ldloc (mb, 1);
9190 mono_mb_emit_byte (mb, CEE_LDC_I4);
9191 mono_mb_emit_i4 (mb, ~0x1);
9192 mono_mb_emit_byte (mb, CEE_CONV_U);
9193 mono_mb_emit_byte (mb, CEE_AND);
9194 mono_mb_emit_ldloc (mb, 0);
9195 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9196 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9198 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9199 mono_mb_emit_ldloc (mb, 1);
9200 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9201 mono_mb_emit_byte (mb, CEE_CONV_U);
9202 mono_mb_emit_byte (mb, CEE_AND);
9203 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9206 mono_mb_emit_ldarg (mb, 0);
9207 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9210 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9211 mono_mb_emit_byte (mb, CEE_LDNULL);
9213 mono_mb_patch_branch (mb, cache_hit_pos);
9214 mono_mb_emit_byte (mb, CEE_RET);
9216 mono_mb_patch_branch (mb, cache_miss_pos);
9217 /*if (mono_object_isinst (obj, klass)) */
9218 mono_mb_emit_ldarg (mb, 0);
9219 mono_mb_emit_ldarg (mb, 1);
9220 mono_mb_emit_icall (mb, mono_object_isinst);
9221 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9223 /**cache = obj_vtable;*/
9224 mono_mb_emit_ldarg (mb, 2);
9225 mono_mb_emit_ldloc (mb, 0);
9226 mono_mb_emit_byte (mb, CEE_STIND_I);
9229 mono_mb_emit_ldarg (mb, 0);
9230 mono_mb_emit_byte (mb, CEE_RET);
9233 mono_mb_patch_branch (mb, not_an_instance_pos);
9234 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9235 mono_mb_emit_ldarg (mb, 2);
9236 /*obj_vtable | 0x1*/
9237 mono_mb_emit_ldloc (mb, 0);
9238 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9239 mono_mb_emit_byte (mb, CEE_CONV_U);
9240 mono_mb_emit_byte (mb, CEE_OR);
9243 mono_mb_emit_byte (mb, CEE_STIND_I);
9246 mono_mb_patch_branch (mb, return_null_pos);
9247 mono_mb_emit_byte (mb, CEE_LDNULL);
9248 mono_mb_emit_byte (mb, CEE_RET);
9250 res = mono_mb_create_method (mb, sig, 8);
9251 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9252 mono_marshal_set_wrapper_info (res, info);
9255 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9256 mono_free_method (res);
9257 mono_metadata_free_method_signature (sig);
9265 * mono_marshal_get_isinst:
9266 * @klass: the type of the field
9268 * This method generates a function which can be used to check if an object is
9269 * an instance of the given type, icluding the case where the object is a proxy.
9270 * The generated function has the following signature:
9271 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9274 mono_marshal_get_isinst (MonoClass *klass)
9276 static MonoMethodSignature *isint_sig = NULL;
9279 int pos_was_ok, pos_failed, pos_end, pos_end2;
9281 MonoMethodBuilder *mb;
9283 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9284 if ((res = mono_marshal_find_in_cache (cache, klass)))
9288 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9289 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9290 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9291 isint_sig->pinvoke = 0;
9294 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9295 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9298 mb->method->save_lmf = 1;
9300 /* check if the object is a proxy that needs special cast */
9301 mono_mb_emit_ldarg (mb, 0);
9302 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9303 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9305 /* The result of MONO_ISINST can be:
9306 0) the type check succeeded
9307 1) the type check did not succeed
9308 2) a CanCastTo call is needed */
9310 mono_mb_emit_byte (mb, CEE_DUP);
9311 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9313 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9314 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9316 /* get the real proxy from the transparent proxy*/
9318 mono_mb_emit_ldarg (mb, 0);
9319 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9320 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9324 mono_mb_patch_branch (mb, pos_failed);
9325 mono_mb_emit_byte (mb, CEE_LDNULL);
9326 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9330 mono_mb_patch_branch (mb, pos_was_ok);
9331 mono_mb_emit_byte (mb, CEE_POP);
9332 mono_mb_emit_ldarg (mb, 0);
9336 mono_mb_patch_branch (mb, pos_end);
9337 mono_mb_patch_branch (mb, pos_end2);
9338 mono_mb_emit_byte (mb, CEE_RET);
9340 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9347 * mono_marshal_get_castclass:
9348 * @klass: the type of the field
9350 * This method generates a function which can be used to cast an object to
9351 * an instance of the given type, icluding the case where the object is a proxy.
9352 * The generated function has the following signature:
9353 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9354 * The wrapper info for the wrapper is a WrapperInfo structure.
9357 mono_marshal_get_castclass (MonoClass *klass)
9359 static MonoMethodSignature *castclass_sig = NULL;
9362 int pos_was_ok, pos_was_ok2;
9364 MonoMethodBuilder *mb;
9367 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9368 if ((res = mono_marshal_find_in_cache (cache, klass)))
9371 if (!castclass_sig) {
9372 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9373 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9374 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9375 castclass_sig->pinvoke = 0;
9378 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9379 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9382 mb->method->save_lmf = 1;
9384 /* check if the object is a proxy that needs special cast */
9385 mono_mb_emit_ldarg (mb, 0);
9386 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9387 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9389 /* The result of MONO_ISINST can be:
9390 0) the cast is valid
9391 1) cast of unknown proxy type
9392 or an exception if the cast is is invalid
9395 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9397 /* get the real proxy from the transparent proxy*/
9399 mono_mb_emit_ldarg (mb, 0);
9400 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9401 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9404 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9407 mono_mb_patch_branch (mb, pos_was_ok);
9408 mono_mb_patch_branch (mb, pos_was_ok2);
9409 mono_mb_emit_ldarg (mb, 0);
9412 mono_mb_emit_byte (mb, CEE_RET);
9414 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9417 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_NONE);
9418 mono_marshal_set_wrapper_info (res, info);
9424 mono_marshal_get_proxy_cancast (MonoClass *klass)
9426 static MonoMethodSignature *isint_sig = NULL;
9429 int pos_failed, pos_end;
9430 char *name, *klass_name;
9431 MonoMethod *can_cast_to;
9432 MonoMethodDesc *desc;
9433 MonoMethodBuilder *mb;
9435 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9436 if ((res = mono_marshal_find_in_cache (cache, klass)))
9440 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9441 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9442 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9443 isint_sig->pinvoke = 0;
9446 klass_name = mono_type_full_name (&klass->byval_arg);
9447 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
9448 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9449 g_free (klass_name);
9452 mb->method->save_lmf = 1;
9454 /* get the real proxy from the transparent proxy*/
9455 mono_mb_emit_ldarg (mb, 0);
9456 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9457 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9459 /* get the reflection type from the type handle */
9460 mono_mb_emit_ptr (mb, &klass->byval_arg);
9461 mono_mb_emit_icall (mb, type_from_handle);
9463 mono_mb_emit_ldarg (mb, 0);
9465 /* make the call to CanCastTo (type, ob) */
9466 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9467 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9468 g_assert (can_cast_to);
9469 mono_method_desc_free (desc);
9470 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9472 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9474 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9475 mono_mb_emit_ptr (mb, &klass->byval_arg);
9476 mono_mb_emit_icall (mb, type_from_handle);
9477 mono_mb_emit_ldarg (mb, 0);
9479 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9480 emit_thread_interrupt_checkpoint (mb);
9482 mono_mb_emit_ldarg (mb, 0);
9483 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9487 mono_mb_patch_branch (mb, pos_failed);
9488 mono_mb_emit_byte (mb, CEE_LDNULL);
9492 mono_mb_patch_branch (mb, pos_end);
9493 mono_mb_emit_byte (mb, CEE_RET);
9495 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9502 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9505 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9506 klass = mono_class_from_mono_type (rtype->type);
9507 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9511 * mono_marshal_get_struct_to_ptr:
9514 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9515 * The wrapper info for the wrapper is a WrapperInfo structure.
9518 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9520 MonoMethodBuilder *mb;
9521 static MonoMethod *stoptr = NULL;
9525 g_assert (klass != NULL);
9527 mono_marshal_load_type_info (klass);
9529 if (klass->marshal_info->str_to_ptr)
9530 return klass->marshal_info->str_to_ptr;
9533 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9536 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9538 if (klass->blittable) {
9539 mono_mb_emit_byte (mb, CEE_LDARG_1);
9540 mono_mb_emit_byte (mb, CEE_LDARG_0);
9541 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9542 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9543 mono_mb_emit_byte (mb, CEE_PREFIX1);
9544 mono_mb_emit_byte (mb, CEE_CPBLK);
9547 /* allocate local 0 (pointer) src_ptr */
9548 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9549 /* allocate local 1 (pointer) dst_ptr */
9550 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9551 /* allocate local 2 (boolean) delete_old */
9552 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9553 mono_mb_emit_byte (mb, CEE_LDARG_2);
9554 mono_mb_emit_stloc (mb, 2);
9556 /* initialize src_ptr to point to the start of object data */
9557 mono_mb_emit_byte (mb, CEE_LDARG_0);
9558 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9559 mono_mb_emit_stloc (mb, 0);
9561 /* initialize dst_ptr */
9562 mono_mb_emit_byte (mb, CEE_LDARG_1);
9563 mono_mb_emit_stloc (mb, 1);
9565 emit_struct_conv (mb, klass, FALSE);
9568 mono_mb_emit_byte (mb, CEE_RET);
9570 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9573 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9574 mono_marshal_set_wrapper_info (res, info);
9576 klass->marshal_info->str_to_ptr = res;
9581 * mono_marshal_get_ptr_to_struct:
9584 * generates IL code for PtrToStructure (IntPtr src, object structure)
9585 * The wrapper info for the wrapper is a WrapperInfo structure.
9588 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9590 MonoMethodBuilder *mb;
9591 static MonoMethodSignature *ptostr = NULL;
9595 g_assert (klass != NULL);
9597 mono_marshal_load_type_info (klass);
9599 if (klass->marshal_info->ptr_to_str)
9600 return klass->marshal_info->ptr_to_str;
9603 MonoMethodSignature *sig;
9605 /* Create the signature corresponding to
9606 static void PtrToStructure (IntPtr ptr, object structure);
9607 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9608 sig = mono_create_icall_signature ("void ptr object");
9609 sig = signature_dup (mono_defaults.corlib, sig);
9611 mono_memory_barrier ();
9615 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9617 if (klass->blittable) {
9618 mono_mb_emit_byte (mb, CEE_LDARG_1);
9619 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9620 mono_mb_emit_byte (mb, CEE_LDARG_0);
9621 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9622 mono_mb_emit_byte (mb, CEE_PREFIX1);
9623 mono_mb_emit_byte (mb, CEE_CPBLK);
9626 /* allocate local 0 (pointer) src_ptr */
9627 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9628 /* allocate local 1 (pointer) dst_ptr */
9629 mono_mb_add_local (mb, &klass->this_arg);
9631 /* initialize src_ptr to point to the start of object data */
9632 mono_mb_emit_byte (mb, CEE_LDARG_0);
9633 mono_mb_emit_stloc (mb, 0);
9635 /* initialize dst_ptr */
9636 mono_mb_emit_byte (mb, CEE_LDARG_1);
9637 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9638 mono_mb_emit_stloc (mb, 1);
9640 emit_struct_conv (mb, klass, TRUE);
9643 mono_mb_emit_byte (mb, CEE_RET);
9645 res = mono_mb_create_method (mb, ptostr, 0);
9648 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9649 mono_marshal_set_wrapper_info (res, info);
9651 klass->marshal_info->ptr_to_str = res;
9656 * generates IL code for the synchronized wrapper: the generated method
9657 * calls METHOD while locking 'this' or the parent type.
9660 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9662 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9663 MonoMethodSignature *sig;
9664 MonoExceptionClause *clause;
9665 MonoMethodBuilder *mb;
9668 int i, pos, this_local, ret_local = 0;
9672 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9675 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9676 if ((res = mono_marshal_find_in_cache (cache, method)))
9679 sig = signature_dup (method->klass->image, mono_method_signature (method));
9682 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9685 if (!MONO_TYPE_IS_VOID (sig->ret))
9686 ret_local = mono_mb_add_local (mb, sig->ret);
9688 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9689 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9690 /* This will throw the type load exception when the wrapper is compiled */
9691 mono_mb_emit_byte (mb, CEE_LDNULL);
9692 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9693 mono_mb_emit_byte (mb, CEE_POP);
9695 if (!MONO_TYPE_IS_VOID (sig->ret))
9696 mono_mb_emit_ldloc (mb, ret_local);
9697 mono_mb_emit_byte (mb, CEE_RET);
9699 res = mono_mb_create_and_cache (cache, method,
9700 mb, sig, sig->param_count + 16);
9707 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9709 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9710 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9712 mono_loader_lock ();
9714 if (!enter_method) {
9715 MonoMethodDesc *desc;
9717 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9718 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9719 g_assert (enter_method);
9720 mono_method_desc_free (desc);
9722 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9723 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9724 g_assert (exit_method);
9725 mono_method_desc_free (desc);
9727 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9728 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9729 g_assert (gettypefromhandle_method);
9730 mono_method_desc_free (desc);
9733 mono_loader_unlock ();
9735 /* Push this or the type object */
9736 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9737 /* We have special handling for this in the JIT */
9738 int index = mono_mb_add_data (mb, method->klass);
9739 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9740 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9741 mono_mb_emit_i4 (mb, index);
9743 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9746 mono_mb_emit_ldarg (mb, 0);
9747 mono_mb_emit_stloc (mb, this_local);
9749 /* Call Monitor::Enter() */
9750 mono_mb_emit_ldloc (mb, this_local);
9751 mono_mb_emit_managed_call (mb, enter_method, NULL);
9753 clause->try_offset = mono_mb_get_label (mb);
9755 /* Call the method */
9757 mono_mb_emit_ldarg (mb, 0);
9758 for (i = 0; i < sig->param_count; i++)
9759 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9761 mono_mb_emit_managed_call (mb, method, NULL);
9763 if (!MONO_TYPE_IS_VOID (sig->ret))
9764 mono_mb_emit_stloc (mb, ret_local);
9766 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9768 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9769 clause->handler_offset = mono_mb_get_label (mb);
9771 /* Call Monitor::Exit() */
9772 mono_mb_emit_ldloc (mb, this_local);
9773 mono_mb_emit_managed_call (mb, exit_method, NULL);
9774 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9776 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9778 mono_mb_patch_branch (mb, pos);
9779 if (!MONO_TYPE_IS_VOID (sig->ret))
9780 mono_mb_emit_ldloc (mb, ret_local);
9781 mono_mb_emit_byte (mb, CEE_RET);
9783 mono_mb_set_clauses (mb, 1, clause);
9785 res = mono_mb_create_and_cache (cache, method,
9786 mb, sig, sig->param_count + 16);
9794 * the returned method calls 'method' unboxing the this argument
9797 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9799 MonoMethodSignature *sig = mono_method_signature (method);
9801 MonoMethodBuilder *mb;
9805 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9806 if ((res = mono_marshal_find_in_cache (cache, method)))
9809 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9811 g_assert (sig->hasthis);
9813 mono_mb_emit_ldarg (mb, 0);
9814 mono_mb_emit_icon (mb, sizeof (MonoObject));
9815 mono_mb_emit_byte (mb, CEE_ADD);
9816 for (i = 0; i < sig->param_count; ++i)
9817 mono_mb_emit_ldarg (mb, i + 1);
9818 mono_mb_emit_managed_call (mb, method, NULL);
9819 mono_mb_emit_byte (mb, CEE_RET);
9821 res = mono_mb_create_and_cache (cache, method,
9822 mb, sig, sig->param_count + 16);
9825 /* code_for (res); */
9831 STELEMREF_OBJECT, /*no check at all*/
9832 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9833 STELEMREF_CLASS, /*only the klass->parents check*/
9834 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9835 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9836 STELEMREF_KIND_COUNT
9839 static const char *strelemref_wrapper_name[] = {
9840 "object", "sealed_class", "class", "interface", "complex"
9844 is_monomorphic_array (MonoClass *klass)
9846 MonoClass *element_class;
9847 if (klass->rank != 1)
9850 element_class = klass->element_class;
9851 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9855 get_virtual_stelemref_kind (MonoClass *element_class)
9857 if (element_class == mono_defaults.object_class)
9858 return STELEMREF_OBJECT;
9859 if (is_monomorphic_array (element_class))
9860 return STELEMREF_SEALED_CLASS;
9861 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9862 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9863 #ifdef COMPRESSED_INTERFACE_BITMAP
9864 return STELEMREF_COMPLEX;
9866 return STELEMREF_INTERFACE;
9868 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9869 if (element_class->marshalbyref || element_class->rank || mono_class_has_variant_generic_params (element_class))
9870 return STELEMREF_COMPLEX;
9871 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9872 return STELEMREF_SEALED_CLASS;
9873 return STELEMREF_CLASS;
9877 load_array_element_address (MonoMethodBuilder *mb)
9879 mono_mb_emit_ldarg (mb, 0);
9880 mono_mb_emit_ldarg (mb, 1);
9881 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9885 load_array_class (MonoMethodBuilder *mb, int aklass)
9887 mono_mb_emit_ldarg (mb, 0);
9888 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9889 mono_mb_emit_byte (mb, CEE_LDIND_I);
9890 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9891 mono_mb_emit_byte (mb, CEE_LDIND_I);
9892 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9893 mono_mb_emit_byte (mb, CEE_LDIND_I);
9894 mono_mb_emit_stloc (mb, aklass);
9898 load_value_class (MonoMethodBuilder *mb, int vklass)
9900 mono_mb_emit_ldarg (mb, 2);
9901 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9902 mono_mb_emit_byte (mb, CEE_LDIND_I);
9903 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9904 mono_mb_emit_byte (mb, CEE_LDIND_I);
9905 mono_mb_emit_stloc (mb, vklass);
9910 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9912 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9913 printf ("slow vstore of %s\n", name);
9919 * The wrapper info for the wrapper is a WrapperInfo structure.
9922 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9923 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9924 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9925 * - Add a case for arrays of arrays.
9928 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9930 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9931 static MonoMethodSignature *signature;
9932 MonoMethodBuilder *mb;
9936 const char *param_names [16];
9938 int aklass, vklass, vtable, uiid;
9939 int array_slot_addr;
9942 g_assert (array_class->rank == 1);
9943 kind = get_virtual_stelemref_kind (array_class->element_class);
9945 if (cached_methods [kind])
9946 return cached_methods [kind];
9948 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9949 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9952 param_names [0] = "index";
9953 param_names [1] = "value";
9954 mono_mb_set_param_names (mb, param_names);
9957 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9959 /* void this::stelemref (size_t idx, void* value) */
9960 sig->ret = &mono_defaults.void_class->byval_arg;
9961 sig->hasthis = TRUE;
9962 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9963 sig->params [1] = &mono_defaults.object_class->byval_arg;
9967 /*For now simply call plain old stelemref*/
9969 case STELEMREF_OBJECT:
9970 /* ldelema (implicit bound check) */
9971 load_array_element_address (mb);
9973 mono_mb_emit_ldarg (mb, 2);
9974 mono_mb_emit_byte (mb, CEE_STIND_REF);
9975 mono_mb_emit_byte (mb, CEE_RET);
9978 case STELEMREF_COMPLEX:
9980 <ldelema (bound check)>
9983 if (!mono_object_isinst (value, aklass))
9987 *array_slot_addr = value;
9990 throw new ArrayTypeMismatchException ();
9993 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9994 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9998 /*Use this to debug/record stores that are going thru the slow path*/
9999 MonoMethodSignature *csig;
10000 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10001 csig->ret = &mono_defaults.void_class->byval_arg;
10002 csig->params [0] = &mono_defaults.object_class->byval_arg;
10003 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10004 csig->params [2] = &mono_defaults.object_class->byval_arg;
10005 mono_mb_emit_ldarg (mb, 0);
10006 mono_mb_emit_ldarg (mb, 1);
10007 mono_mb_emit_ldarg (mb, 2);
10008 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
10012 /* ldelema (implicit bound check) */
10013 load_array_element_address (mb);
10014 mono_mb_emit_stloc (mb, array_slot_addr);
10016 /* if (!value) goto do_store */
10017 mono_mb_emit_ldarg (mb, 2);
10018 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10020 /* aklass = array->vtable->klass->element_class */
10021 load_array_class (mb, aklass);
10023 /*if (mono_object_isinst (value, aklass)) */
10024 mono_mb_emit_ldarg (mb, 2);
10025 mono_mb_emit_ldloc (mb, aklass);
10026 mono_mb_emit_icall (mb, mono_object_isinst);
10027 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10030 mono_mb_patch_branch (mb, b1);
10031 mono_mb_emit_ldloc (mb, array_slot_addr);
10032 mono_mb_emit_ldarg (mb, 2);
10033 mono_mb_emit_byte (mb, CEE_STIND_REF);
10034 mono_mb_emit_byte (mb, CEE_RET);
10036 /* do_exception: */
10037 mono_mb_patch_branch (mb, b2);
10039 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10042 case STELEMREF_SEALED_CLASS:
10044 <ldelema (bound check)>
10048 aklass = array->vtable->klass->element_class;
10049 vklass = value->vtable->klass;
10051 if (vklass != aklass)
10055 *array_slot_addr = value;
10058 throw new ArrayTypeMismatchException ();
10060 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10061 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10062 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10065 /* ldelema (implicit bound check) */
10066 load_array_element_address (mb);
10067 mono_mb_emit_stloc (mb, array_slot_addr);
10069 /* if (!value) goto do_store */
10070 mono_mb_emit_ldarg (mb, 2);
10071 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10073 /* aklass = array->vtable->klass->element_class */
10074 load_array_class (mb, aklass);
10076 /* vklass = value->vtable->klass */
10077 load_value_class (mb, vklass);
10079 /*if (vklass != aklass) goto do_exception; */
10080 mono_mb_emit_ldloc (mb, aklass);
10081 mono_mb_emit_ldloc (mb, vklass);
10082 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10085 mono_mb_patch_branch (mb, b1);
10086 mono_mb_emit_ldloc (mb, array_slot_addr);
10087 mono_mb_emit_ldarg (mb, 2);
10088 mono_mb_emit_byte (mb, CEE_STIND_REF);
10089 mono_mb_emit_byte (mb, CEE_RET);
10091 /* do_exception: */
10092 mono_mb_patch_branch (mb, b2);
10093 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10096 case STELEMREF_CLASS:
10099 <ldelema (bound check)>
10103 aklass = array->vtable->klass->element_class;
10104 vklass = value->vtable->klass;
10106 if (vklass->idepth < aklass->idepth)
10109 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10113 *array_slot_addr = value;
10117 throw new ArrayTypeMismatchException ();
10119 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10120 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10121 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10123 /* ldelema (implicit bound check) */
10124 load_array_element_address (mb);
10125 mono_mb_emit_stloc (mb, array_slot_addr);
10127 /* if (!value) goto do_store */
10128 mono_mb_emit_ldarg (mb, 2);
10129 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10131 /* aklass = array->vtable->klass->element_class */
10132 load_array_class (mb, aklass);
10134 /* vklass = value->vtable->klass */
10135 load_value_class (mb, vklass);
10137 /*if (mono_object_isinst (value, aklass)) */
10138 mono_mb_emit_ldarg (mb, 2);
10139 mono_mb_emit_ldloc (mb, aklass);
10140 mono_mb_emit_icall (mb, mono_object_isinst);
10141 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10143 /* if (vklass->idepth < aklass->idepth) goto failue */
10144 mono_mb_emit_ldloc (mb, vklass);
10145 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10146 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10148 mono_mb_emit_ldloc (mb, aklass);
10149 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10150 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10152 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10154 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10155 mono_mb_emit_ldloc (mb, vklass);
10156 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10157 mono_mb_emit_byte (mb, CEE_LDIND_I);
10159 mono_mb_emit_ldloc (mb, aklass);
10160 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10161 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10162 mono_mb_emit_icon (mb, 1);
10163 mono_mb_emit_byte (mb, CEE_SUB);
10164 mono_mb_emit_icon (mb, sizeof (void*));
10165 mono_mb_emit_byte (mb, CEE_MUL);
10166 mono_mb_emit_byte (mb, CEE_ADD);
10167 mono_mb_emit_byte (mb, CEE_LDIND_I);
10169 mono_mb_emit_ldloc (mb, aklass);
10170 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10173 mono_mb_patch_branch (mb, b1);
10174 mono_mb_emit_ldloc (mb, array_slot_addr);
10175 mono_mb_emit_ldarg (mb, 2);
10176 mono_mb_emit_byte (mb, CEE_STIND_REF);
10177 mono_mb_emit_byte (mb, CEE_RET);
10179 /* do_exception: */
10180 mono_mb_patch_branch (mb, b2);
10181 mono_mb_patch_branch (mb, b3);
10183 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10186 case STELEMREF_INTERFACE:
10193 klass = array->obj.vtable->klass->element_class;
10194 vt = value->vtable;
10195 uiid = klass->interface_id;
10196 if (uiid > vt->max_interface_id)
10198 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10201 mono_array_setref (array, index, value);
10204 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10206 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10207 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10208 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10209 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10211 /* ldelema (implicit bound check) */
10212 load_array_element_address (mb);
10213 mono_mb_emit_stloc (mb, array_slot_addr);
10215 /* if (!value) goto do_store */
10216 mono_mb_emit_ldarg (mb, 2);
10217 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10219 /* klass = array->vtable->klass->element_class */
10220 load_array_class (mb, aklass);
10222 /* vt = value->vtable */
10223 mono_mb_emit_ldarg (mb, 2);
10224 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10225 mono_mb_emit_byte (mb, CEE_LDIND_I);
10226 mono_mb_emit_stloc (mb, vtable);
10228 /* uiid = klass->interface_id; */
10229 mono_mb_emit_ldloc (mb, aklass);
10230 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10231 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10232 mono_mb_emit_stloc (mb, uiid);
10234 /*if (uiid > vt->max_interface_id)*/
10235 mono_mb_emit_ldloc (mb, uiid);
10236 mono_mb_emit_ldloc (mb, vtable);
10237 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10238 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10239 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10241 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10243 /*vt->interface_bitmap*/
10244 mono_mb_emit_ldloc (mb, vtable);
10245 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10246 mono_mb_emit_byte (mb, CEE_LDIND_I);
10249 mono_mb_emit_ldloc (mb, uiid);
10250 mono_mb_emit_icon (mb, 3);
10251 mono_mb_emit_byte (mb, CEE_SHR_UN);
10253 /*vt->interface_bitmap [(uiid) >> 3]*/
10254 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10255 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10257 /*(1 << ((uiid)&7)))*/
10258 mono_mb_emit_icon (mb, 1);
10259 mono_mb_emit_ldloc (mb, uiid);
10260 mono_mb_emit_icon (mb, 7);
10261 mono_mb_emit_byte (mb, CEE_AND);
10262 mono_mb_emit_byte (mb, CEE_SHL);
10264 /*bitwise and the whole thing*/
10265 mono_mb_emit_byte (mb, CEE_AND);
10266 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10269 mono_mb_patch_branch (mb, b1);
10270 mono_mb_emit_ldloc (mb, array_slot_addr);
10271 mono_mb_emit_ldarg (mb, 2);
10272 mono_mb_emit_byte (mb, CEE_STIND_REF);
10273 mono_mb_emit_byte (mb, CEE_RET);
10275 /* do_exception: */
10276 mono_mb_patch_branch (mb, b2);
10277 mono_mb_patch_branch (mb, b3);
10278 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10282 mono_mb_emit_ldarg (mb, 0);
10283 mono_mb_emit_ldarg (mb, 1);
10284 mono_mb_emit_ldarg (mb, 2);
10285 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10286 mono_mb_emit_byte (mb, CEE_RET);
10290 res = mono_mb_create_method (mb, signature, 4);
10291 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10293 info = mono_wrapper_info_create (res, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10294 info->d.virtual_stelemref.kind = kind;
10295 mono_marshal_set_wrapper_info (res, info);
10297 mono_marshal_lock ();
10298 if (!cached_methods [kind]) {
10299 cached_methods [kind] = res;
10300 mono_marshal_unlock ();
10302 mono_marshal_unlock ();
10303 mono_free_method (res);
10307 return cached_methods [kind];
10311 * The wrapper info for the wrapper is a WrapperInfo structure.
10314 mono_marshal_get_stelemref ()
10316 static MonoMethod* ret = NULL;
10317 MonoMethodSignature *sig;
10318 MonoMethodBuilder *mb;
10321 guint32 b1, b2, b3, b4;
10323 int aklass, vklass;
10324 int array_slot_addr;
10329 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10332 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10334 /* void stelemref (void* array, int idx, void* value) */
10335 sig->ret = &mono_defaults.void_class->byval_arg;
10336 sig->params [0] = &mono_defaults.object_class->byval_arg;
10337 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10338 sig->params [2] = &mono_defaults.object_class->byval_arg;
10340 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10341 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10342 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10346 <ldelema (bound check)>
10350 aklass = array->vtable->klass->element_class;
10351 vklass = value->vtable->klass;
10353 if (vklass->idepth < aklass->idepth)
10356 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10360 *array_slot_addr = value;
10364 if (mono_object_isinst (value, aklass))
10367 throw new ArrayTypeMismatchException ();
10370 /* ldelema (implicit bound check) */
10371 mono_mb_emit_ldarg (mb, 0);
10372 mono_mb_emit_ldarg (mb, 1);
10373 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10374 mono_mb_emit_stloc (mb, array_slot_addr);
10376 /* if (!value) goto do_store */
10377 mono_mb_emit_ldarg (mb, 2);
10378 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10380 /* aklass = array->vtable->klass->element_class */
10381 mono_mb_emit_ldarg (mb, 0);
10382 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10383 mono_mb_emit_byte (mb, CEE_LDIND_I);
10384 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10385 mono_mb_emit_byte (mb, CEE_LDIND_I);
10386 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10387 mono_mb_emit_byte (mb, CEE_LDIND_I);
10388 mono_mb_emit_stloc (mb, aklass);
10390 /* vklass = value->vtable->klass */
10391 mono_mb_emit_ldarg (mb, 2);
10392 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10393 mono_mb_emit_byte (mb, CEE_LDIND_I);
10394 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10395 mono_mb_emit_byte (mb, CEE_LDIND_I);
10396 mono_mb_emit_stloc (mb, vklass);
10398 /* if (vklass->idepth < aklass->idepth) goto failue */
10399 mono_mb_emit_ldloc (mb, vklass);
10400 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10401 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10403 mono_mb_emit_ldloc (mb, aklass);
10404 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10405 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10407 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10409 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10410 mono_mb_emit_ldloc (mb, vklass);
10411 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10412 mono_mb_emit_byte (mb, CEE_LDIND_I);
10414 mono_mb_emit_ldloc (mb, aklass);
10415 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10416 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10417 mono_mb_emit_icon (mb, 1);
10418 mono_mb_emit_byte (mb, CEE_SUB);
10419 mono_mb_emit_icon (mb, sizeof (void*));
10420 mono_mb_emit_byte (mb, CEE_MUL);
10421 mono_mb_emit_byte (mb, CEE_ADD);
10422 mono_mb_emit_byte (mb, CEE_LDIND_I);
10424 mono_mb_emit_ldloc (mb, aklass);
10426 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10428 copy_pos = mono_mb_get_label (mb);
10430 mono_mb_patch_branch (mb, b1);
10431 mono_mb_emit_ldloc (mb, array_slot_addr);
10432 mono_mb_emit_ldarg (mb, 2);
10433 mono_mb_emit_byte (mb, CEE_STIND_REF);
10435 mono_mb_emit_byte (mb, CEE_RET);
10438 mono_mb_patch_branch (mb, b2);
10439 mono_mb_patch_branch (mb, b3);
10441 mono_mb_emit_ldarg (mb, 2);
10442 mono_mb_emit_ldloc (mb, aklass);
10443 mono_mb_emit_icall (mb, mono_object_isinst);
10445 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10446 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10447 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10449 mono_mb_emit_byte (mb, CEE_RET);
10450 ret = mono_mb_create_method (mb, sig, 4);
10453 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_NONE);
10454 mono_marshal_set_wrapper_info (ret, info);
10462 MonoMethod *method;
10465 /* LOCKING: vars accessed under the marshal lock */
10466 static ArrayElemAddr *elem_addr_cache = NULL;
10467 static int elem_addr_cache_size = 0;
10468 static int elem_addr_cache_next = 0;
10471 * mono_marshal_get_array_address:
10472 * @rank: rank of the array type
10473 * @elem_size: size in bytes of an element of an array.
10475 * Returns a MonoMethd that implements the code to get the address
10476 * of an element in a multi-dimenasional array of @rank dimensions.
10477 * The returned method takes an array as the first argument and then
10478 * @rank indexes for the @rank dimensions.
10481 mono_marshal_get_array_address (int rank, int elem_size)
10484 MonoMethodBuilder *mb;
10485 MonoMethodSignature *sig;
10486 int i, bounds, ind, realidx;
10487 int branch_pos, *branch_positions;
10491 mono_marshal_lock ();
10492 for (i = 0; i < elem_addr_cache_next; ++i) {
10493 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10494 ret = elem_addr_cache [i].method;
10498 mono_marshal_unlock ();
10502 branch_positions = g_new0 (int, rank);
10504 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10506 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10507 sig->ret = &mono_defaults.int_class->byval_arg;
10508 sig->params [0] = &mono_defaults.object_class->byval_arg;
10509 for (i = 0; i < rank; ++i) {
10510 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10513 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10515 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10516 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10517 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10519 /* bounds = array->bounds; */
10520 mono_mb_emit_ldarg (mb, 0);
10521 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10522 mono_mb_emit_byte (mb, CEE_LDIND_I);
10523 mono_mb_emit_stloc (mb, bounds);
10525 /* ind is the overall element index, realidx is the partial index in a single dimension */
10526 /* ind = idx0 - bounds [0].lower_bound */
10527 mono_mb_emit_ldarg (mb, 1);
10528 mono_mb_emit_ldloc (mb, bounds);
10529 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10530 mono_mb_emit_byte (mb, CEE_ADD);
10531 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10532 mono_mb_emit_byte (mb, CEE_SUB);
10533 mono_mb_emit_stloc (mb, ind);
10534 /* if (ind >= bounds [0].length) goto exeception; */
10535 mono_mb_emit_ldloc (mb, ind);
10536 mono_mb_emit_ldloc (mb, bounds);
10537 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10538 mono_mb_emit_byte (mb, CEE_ADD);
10539 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10540 /* note that we use unsigned comparison */
10541 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10543 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10544 * We could also decide to ignore the passed elem_size and get it
10545 * from the array object, to reduce the number of methods we generate:
10546 * the additional cost is 3 memory loads and a non-immediate mul.
10548 for (i = 1; i < rank; ++i) {
10549 /* realidx = idxi - bounds [i].lower_bound */
10550 mono_mb_emit_ldarg (mb, 1 + i);
10551 mono_mb_emit_ldloc (mb, bounds);
10552 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10553 mono_mb_emit_byte (mb, CEE_ADD);
10554 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10555 mono_mb_emit_byte (mb, CEE_SUB);
10556 mono_mb_emit_stloc (mb, realidx);
10557 /* if (realidx >= bounds [i].length) goto exeception; */
10558 mono_mb_emit_ldloc (mb, realidx);
10559 mono_mb_emit_ldloc (mb, bounds);
10560 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10561 mono_mb_emit_byte (mb, CEE_ADD);
10562 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10563 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10564 /* ind = ind * bounds [i].length + realidx */
10565 mono_mb_emit_ldloc (mb, ind);
10566 mono_mb_emit_ldloc (mb, bounds);
10567 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10568 mono_mb_emit_byte (mb, CEE_ADD);
10569 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10570 mono_mb_emit_byte (mb, CEE_MUL);
10571 mono_mb_emit_ldloc (mb, realidx);
10572 mono_mb_emit_byte (mb, CEE_ADD);
10573 mono_mb_emit_stloc (mb, ind);
10576 /* return array->vector + ind * element_size */
10577 mono_mb_emit_ldarg (mb, 0);
10578 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10579 mono_mb_emit_ldloc (mb, ind);
10580 mono_mb_emit_icon (mb, elem_size);
10581 mono_mb_emit_byte (mb, CEE_MUL);
10582 mono_mb_emit_byte (mb, CEE_ADD);
10583 mono_mb_emit_byte (mb, CEE_RET);
10585 /* patch the branches to get here and throw */
10586 for (i = 1; i < rank; ++i) {
10587 mono_mb_patch_branch (mb, branch_positions [i]);
10589 mono_mb_patch_branch (mb, branch_pos);
10590 /* throw exception */
10591 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10593 g_free (branch_positions);
10594 ret = mono_mb_create_method (mb, sig, 4);
10597 /* cache the result */
10599 mono_marshal_lock ();
10600 for (i = 0; i < elem_addr_cache_next; ++i) {
10601 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10602 /* FIXME: free ret */
10603 ret = elem_addr_cache [i].method;
10611 if (elem_addr_cache_next >= elem_addr_cache_size) {
10612 int new_size = elem_addr_cache_size + 4;
10613 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10614 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10615 g_free (elem_addr_cache);
10616 elem_addr_cache = new_array;
10617 elem_addr_cache_size = new_size;
10619 elem_addr_cache [elem_addr_cache_next].rank = rank;
10620 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10621 elem_addr_cache [elem_addr_cache_next].method = ret;
10622 elem_addr_cache_next ++;
10624 info = mono_wrapper_info_create (ret, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10625 info->d.element_addr.rank = rank;
10626 info->d.element_addr.elem_size = elem_size;
10627 mono_marshal_set_wrapper_info (ret, info);
10629 mono_marshal_unlock ();
10634 mono_marshal_alloc (gulong size)
10639 res = CoTaskMemAlloc (size);
10641 res = g_try_malloc ((gulong)size);
10643 mono_gc_out_of_memory ((gulong)size);
10649 mono_marshal_free (gpointer ptr)
10652 CoTaskMemFree (ptr);
10659 mono_marshal_free_array (gpointer *ptr, int size)
10666 for (i = 0; i < size; i++)
10672 mono_marshal_string_to_utf16 (MonoString *s)
10674 return s ? mono_string_chars (s) : NULL;
10678 mono_marshal_string_to_utf16_copy (MonoString *s)
10683 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10684 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10685 res [mono_string_length (s)] = 0;
10691 * mono_marshal_set_last_error:
10693 * This function is invoked to set the last error value from a P/Invoke call
10694 * which has SetLastError set.
10697 mono_marshal_set_last_error (void)
10700 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10702 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10707 mono_marshal_set_last_error_windows (int error)
10710 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10715 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10716 gpointer dest, gint32 length)
10721 MONO_ARCH_SAVE_REGS;
10723 MONO_CHECK_ARG_NULL (src);
10724 MONO_CHECK_ARG_NULL (dest);
10726 if (src->obj.vtable->klass->rank != 1)
10727 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10728 if (start_index < 0)
10729 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10731 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10732 if (start_index + length > mono_array_length (src))
10733 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10735 element_size = mono_array_element_size (src->obj.vtable->klass);
10737 /* no references should be involved */
10738 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10740 memcpy (dest, source_addr, length * element_size);
10744 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10745 MonoArray *dest, gint32 length)
10750 MONO_ARCH_SAVE_REGS;
10752 MONO_CHECK_ARG_NULL (src);
10753 MONO_CHECK_ARG_NULL (dest);
10755 if (dest->obj.vtable->klass->rank != 1)
10756 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10757 if (start_index < 0)
10758 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10760 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10761 if (start_index + length > mono_array_length (dest))
10762 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10764 element_size = mono_array_element_size (dest->obj.vtable->klass);
10766 /* no references should be involved */
10767 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10769 memcpy (dest_addr, src, length * element_size);
10772 #if NO_UNALIGNED_ACCESS
10773 #define RETURN_UNALIGNED(type, addr) \
10776 memcpy(&val, p + offset, sizeof(val)); \
10779 #define WRITE_UNALIGNED(type, addr, val) \
10780 memcpy(addr, &val, sizeof(type))
10782 #define RETURN_UNALIGNED(type, addr) \
10783 return *(type*)(p + offset);
10784 #define WRITE_UNALIGNED(type, addr, val) \
10785 (*(type *)(addr) = (val))
10789 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10793 MONO_ARCH_SAVE_REGS;
10795 RETURN_UNALIGNED(gpointer, p + offset);
10799 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10803 MONO_ARCH_SAVE_REGS;
10805 return *(unsigned char*)(p + offset);
10809 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10813 MONO_ARCH_SAVE_REGS;
10815 RETURN_UNALIGNED(gint16, p + offset);
10819 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10823 MONO_ARCH_SAVE_REGS;
10825 RETURN_UNALIGNED(gint32, p + offset);
10829 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10833 MONO_ARCH_SAVE_REGS;
10835 RETURN_UNALIGNED(gint64, p + offset);
10839 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10843 MONO_ARCH_SAVE_REGS;
10845 *(unsigned char*)(p + offset) = val;
10849 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10853 MONO_ARCH_SAVE_REGS;
10855 WRITE_UNALIGNED(gpointer, p + offset, val);
10859 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10863 MONO_ARCH_SAVE_REGS;
10865 WRITE_UNALIGNED(gint16, p + offset, val);
10869 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10873 MONO_ARCH_SAVE_REGS;
10875 WRITE_UNALIGNED(gint32, p + offset, val);
10879 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10883 MONO_ARCH_SAVE_REGS;
10885 WRITE_UNALIGNED(gint64, p + offset, val);
10889 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10891 MONO_ARCH_SAVE_REGS;
10896 return mono_string_new (mono_domain_get (), ptr);
10900 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10902 MONO_ARCH_SAVE_REGS;
10905 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10906 g_assert_not_reached ();
10909 return mono_string_new_len (mono_domain_get (), ptr, len);
10914 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10916 MonoDomain *domain = mono_domain_get ();
10920 MONO_ARCH_SAVE_REGS;
10928 return mono_string_new_utf16 (domain, ptr, len);
10932 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10934 MonoDomain *domain = mono_domain_get ();
10936 MONO_ARCH_SAVE_REGS;
10939 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10940 g_assert_not_reached ();
10943 return mono_string_new_utf16 (domain, ptr, len);
10948 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10950 MONO_ARCH_SAVE_REGS;
10952 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10956 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10962 MONO_ARCH_SAVE_REGS;
10964 MONO_CHECK_ARG_NULL (rtype);
10966 type = rtype->type;
10967 klass = mono_class_from_mono_type (type);
10968 if (!mono_class_init (klass))
10969 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10971 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10973 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10975 MonoException *exc;
10977 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10978 exc = mono_get_exception_argument ("t", msg);
10980 mono_raise_exception (exc);
10984 return mono_class_native_size (klass, NULL);
10988 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10990 MonoMethod *method;
10993 MONO_ARCH_SAVE_REGS;
10995 MONO_CHECK_ARG_NULL (obj);
10996 MONO_CHECK_ARG_NULL (dst);
10998 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11002 pa [2] = &delete_old;
11004 mono_runtime_invoke (method, NULL, pa, NULL);
11008 ptr_to_structure (gpointer src, MonoObject *dst)
11010 MonoMethod *method;
11013 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11018 mono_runtime_invoke (method, NULL, pa, NULL);
11022 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11026 MONO_ARCH_SAVE_REGS;
11028 MONO_CHECK_ARG_NULL (src);
11029 MONO_CHECK_ARG_NULL (dst);
11031 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11033 if (t->type == MONO_TYPE_VALUETYPE) {
11034 MonoException *exc;
11037 tmp = g_strdup_printf ("Destination is a boxed value type.");
11038 exc = mono_get_exception_argument ("dst", tmp);
11041 mono_raise_exception (exc);
11045 ptr_to_structure (src, dst);
11049 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11052 MonoDomain *domain = mono_domain_get ();
11055 MONO_ARCH_SAVE_REGS;
11057 MONO_CHECK_ARG_NULL (src);
11058 MONO_CHECK_ARG_NULL (type);
11060 klass = mono_class_from_mono_type (type->type);
11061 if (!mono_class_init (klass))
11062 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11064 res = mono_object_new (domain, klass);
11066 ptr_to_structure (src, res);
11072 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11074 MonoMarshalType *info;
11077 int match_index = -1;
11079 MONO_ARCH_SAVE_REGS;
11081 MONO_CHECK_ARG_NULL (type);
11082 MONO_CHECK_ARG_NULL (field_name);
11084 fname = mono_string_to_utf8 (field_name);
11085 klass = mono_class_from_mono_type (type->type);
11086 if (!mono_class_init (klass))
11087 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11089 while (klass && match_index == -1) {
11090 MonoClassField* field;
11092 gpointer iter = NULL;
11093 while ((field = mono_class_get_fields (klass, &iter))) {
11094 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11096 if (!strcmp (fname, mono_field_get_name (field))) {
11103 if (match_index == -1)
11104 klass = klass->parent;
11109 if(match_index == -1) {
11110 MonoException* exc;
11113 /* Get back original class instance */
11114 klass = mono_class_from_mono_type (type->type);
11116 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11117 exc = mono_get_exception_argument ("fieldName", tmp);
11120 mono_raise_exception ((MonoException*)exc);
11123 info = mono_marshal_load_type_info (klass);
11124 return info->fields [match_index].offset;
11128 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11133 tres = mono_string_to_utf8 (string);
11137 len = strlen (tres) + 1;
11138 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11139 memcpy (ret, tres, len);
11144 return mono_string_to_utf8 (string);
11149 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11151 MONO_ARCH_SAVE_REGS;
11153 if (string == NULL)
11156 #ifdef TARGET_WIN32
11157 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11158 ((mono_string_length (string) + 1) * 2);
11160 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11162 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11163 res [mono_string_length (string)] = 0;
11169 mono_struct_delete_old (MonoClass *klass, char *ptr)
11171 MonoMarshalType *info;
11174 info = mono_marshal_load_type_info (klass);
11176 for (i = 0; i < info->num_fields; i++) {
11177 MonoMarshalNative ntype;
11178 MonoMarshalConv conv;
11179 MonoType *ftype = info->fields [i].field->type;
11182 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11185 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11186 klass->unicode, &conv);
11188 cpos = ptr + info->fields [i].offset;
11191 case MONO_MARSHAL_CONV_NONE:
11192 if (MONO_TYPE_ISSTRUCT (ftype)) {
11193 mono_struct_delete_old (ftype->data.klass, cpos);
11197 case MONO_MARSHAL_CONV_STR_LPWSTR:
11198 /* We assume this field points inside a MonoString */
11200 case MONO_MARSHAL_CONV_STR_LPTSTR:
11201 #ifdef TARGET_WIN32
11202 /* We assume this field points inside a MonoString
11206 case MONO_MARSHAL_CONV_STR_LPSTR:
11207 case MONO_MARSHAL_CONV_STR_BSTR:
11208 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11209 case MONO_MARSHAL_CONV_STR_TBSTR:
11210 mono_marshal_free (*(gpointer *)cpos);
11220 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11224 MONO_ARCH_SAVE_REGS;
11226 MONO_CHECK_ARG_NULL (src);
11227 MONO_CHECK_ARG_NULL (type);
11229 klass = mono_class_from_mono_type (type->type);
11230 if (!mono_class_init (klass))
11231 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11233 mono_struct_delete_old (klass, (char *)src);
11237 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11241 MONO_ARCH_SAVE_REGS;
11243 if ((gulong)size == 0)
11244 /* This returns a valid pointer for size 0 on MS.NET */
11248 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11250 res = g_try_malloc ((gulong)size);
11253 mono_gc_out_of_memory ((gulong)size);
11259 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11264 mono_gc_out_of_memory ((gulong)size);
11269 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11271 res = g_try_realloc (ptr, (gulong)size);
11274 mono_gc_out_of_memory ((gulong)size);
11280 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11282 MONO_ARCH_SAVE_REGS;
11292 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11294 MONO_ARCH_SAVE_REGS;
11297 return CoTaskMemAlloc (size);
11299 return g_try_malloc ((gulong)size);
11304 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11306 MONO_ARCH_SAVE_REGS;
11309 CoTaskMemFree (ptr);
11316 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11318 MONO_ARCH_SAVE_REGS;
11321 return CoTaskMemRealloc (ptr, size);
11323 return g_try_realloc (ptr, (gulong)size);
11328 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11330 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11334 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11336 MonoClass *klass = mono_type_get_class (type->type);
11337 if (!mono_class_init (klass))
11338 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11340 return mono_ftnptr_to_delegate (klass, ftn);
11344 * mono_marshal_is_loading_type_info:
11346 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11350 mono_marshal_is_loading_type_info (MonoClass *klass)
11352 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11354 return g_slist_find (loads_list, klass) != NULL;
11358 * mono_marshal_load_type_info:
11360 * Initialize klass->marshal_info using information from metadata. This function can
11361 * recursively call itself, and the caller is responsible to avoid that by calling
11362 * mono_marshal_is_loading_type_info () beforehand.
11364 * LOCKING: Acquires the loader lock.
11367 mono_marshal_load_type_info (MonoClass* klass)
11370 guint32 native_size = 0, min_align = 1, packing;
11371 MonoMarshalType *info;
11372 MonoClassField* field;
11375 GSList *loads_list;
11377 g_assert (klass != NULL);
11379 if (klass->marshal_info)
11380 return klass->marshal_info;
11382 if (!klass->inited)
11383 mono_class_init (klass);
11385 mono_loader_lock ();
11387 if (klass->marshal_info) {
11388 mono_loader_unlock ();
11389 return klass->marshal_info;
11393 * This function can recursively call itself, so we keep the list of classes which are
11394 * under initialization in a TLS list.
11396 g_assert (!mono_marshal_is_loading_type_info (klass));
11397 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11398 loads_list = g_slist_prepend (loads_list, klass);
11399 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11402 while ((field = mono_class_get_fields (klass, &iter))) {
11403 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11405 if (mono_field_is_deleted (field))
11410 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11412 /* The mempool is protected by the loader lock */
11413 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11414 info->num_fields = count;
11416 /* Try to find a size for this type in metadata */
11417 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11419 if (klass->parent) {
11420 int parent_size = mono_class_native_size (klass->parent, NULL);
11422 /* Add parent size to real size */
11423 native_size += parent_size;
11424 info->native_size = parent_size;
11427 packing = klass->packing_size ? klass->packing_size : 8;
11430 while ((field = mono_class_get_fields (klass, &iter))) {
11434 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11437 if (mono_field_is_deleted (field))
11439 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11440 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11441 NULL, NULL, &info->fields [j].mspec);
11443 info->fields [j].field = field;
11445 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11446 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11447 /* This field is a hack inserted by MCS to empty structures */
11452 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11453 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11454 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11455 &align, TRUE, klass->unicode);
11456 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11457 min_align = MAX (align, min_align);
11458 info->fields [j].offset = info->native_size;
11459 info->fields [j].offset += align - 1;
11460 info->fields [j].offset &= ~(align - 1);
11461 info->native_size = info->fields [j].offset + size;
11463 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11464 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11465 &align, TRUE, klass->unicode);
11466 min_align = packing;
11467 info->fields [j].offset = field->offset - sizeof (MonoObject);
11468 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11474 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11475 info->native_size = MAX (native_size, info->native_size);
11477 * If the provided Size is equal or larger than the calculated size, and there
11478 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11480 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
11481 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11485 if (info->native_size & (min_align - 1)) {
11486 info->native_size += min_align - 1;
11487 info->native_size &= ~(min_align - 1);
11490 info->min_align = min_align;
11492 /* Update the class's blittable info, if the layouts don't match */
11493 if (info->native_size != mono_class_value_size (klass, NULL))
11494 klass->blittable = FALSE;
11496 /* If this is an array type, ensure that we have element info */
11497 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11498 mono_marshal_load_type_info (klass->element_class);
11501 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11502 loads_list = g_slist_remove (loads_list, klass);
11503 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11505 /*We do double-checking locking on marshal_info */
11506 mono_memory_barrier ();
11508 klass->marshal_info = info;
11510 mono_loader_unlock ();
11512 return klass->marshal_info;
11516 * mono_class_native_size:
11519 * Returns: the native size of an object instance (when marshaled
11520 * to unmanaged code)
11523 mono_class_native_size (MonoClass *klass, guint32 *align)
11525 if (!klass->marshal_info) {
11526 if (mono_marshal_is_loading_type_info (klass)) {
11531 mono_marshal_load_type_info (klass);
11536 *align = klass->marshal_info->min_align;
11538 return klass->marshal_info->native_size;
11541 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11542 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11543 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11544 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11547 * mono_type_native_stack_size:
11548 * @t: the type to return the size it uses on the stack
11550 * Returns: the number of bytes required to hold an instance of this
11551 * type on the native stack
11554 mono_type_native_stack_size (MonoType *t, guint32 *align)
11558 g_assert (t != NULL);
11564 *align = sizeof (gpointer);
11565 return sizeof (gpointer);
11569 case MONO_TYPE_BOOLEAN:
11570 case MONO_TYPE_CHAR:
11581 case MONO_TYPE_STRING:
11582 case MONO_TYPE_OBJECT:
11583 case MONO_TYPE_CLASS:
11584 case MONO_TYPE_SZARRAY:
11585 case MONO_TYPE_PTR:
11586 case MONO_TYPE_FNPTR:
11587 case MONO_TYPE_ARRAY:
11588 *align = sizeof (gpointer);
11589 return sizeof (gpointer);
11594 *align = ALIGNMENT (gdouble);
11598 *align = ALIGNMENT (glong);
11600 case MONO_TYPE_GENERICINST:
11601 if (!mono_type_generic_inst_is_valuetype (t)) {
11602 *align = sizeof (gpointer);
11603 return sizeof (gpointer);
11606 case MONO_TYPE_TYPEDBYREF:
11607 case MONO_TYPE_VALUETYPE: {
11609 MonoClass *klass = mono_class_from_mono_type (t);
11611 if (klass->enumtype)
11612 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11614 size = mono_class_native_size (klass, align);
11615 *align = *align + 3;
11625 g_error ("type 0x%02x unknown", t->type);
11631 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11632 gboolean as_field, gboolean unicode)
11634 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11637 switch (native_type) {
11638 case MONO_NATIVE_BOOLEAN:
11641 case MONO_NATIVE_I1:
11642 case MONO_NATIVE_U1:
11645 case MONO_NATIVE_I2:
11646 case MONO_NATIVE_U2:
11647 case MONO_NATIVE_VARIANTBOOL:
11650 case MONO_NATIVE_I4:
11651 case MONO_NATIVE_U4:
11652 case MONO_NATIVE_ERROR:
11655 case MONO_NATIVE_I8:
11656 case MONO_NATIVE_U8:
11657 *align = ALIGNMENT(guint64);
11659 case MONO_NATIVE_R4:
11662 case MONO_NATIVE_R8:
11663 *align = ALIGNMENT(double);
11665 case MONO_NATIVE_INT:
11666 case MONO_NATIVE_UINT:
11667 case MONO_NATIVE_LPSTR:
11668 case MONO_NATIVE_LPWSTR:
11669 case MONO_NATIVE_LPTSTR:
11670 case MONO_NATIVE_BSTR:
11671 case MONO_NATIVE_ANSIBSTR:
11672 case MONO_NATIVE_TBSTR:
11673 case MONO_NATIVE_LPARRAY:
11674 case MONO_NATIVE_SAFEARRAY:
11675 case MONO_NATIVE_IUNKNOWN:
11676 case MONO_NATIVE_IDISPATCH:
11677 case MONO_NATIVE_INTERFACE:
11678 case MONO_NATIVE_ASANY:
11679 case MONO_NATIVE_FUNC:
11680 case MONO_NATIVE_LPSTRUCT:
11681 *align = ALIGNMENT(gpointer);
11682 return sizeof (gpointer);
11683 case MONO_NATIVE_STRUCT:
11684 klass = mono_class_from_mono_type (type);
11685 if (klass == mono_defaults.object_class &&
11686 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11690 return mono_class_native_size (klass, align);
11691 case MONO_NATIVE_BYVALTSTR: {
11692 int esize = unicode ? 2: 1;
11695 return mspec->data.array_data.num_elem * esize;
11697 case MONO_NATIVE_BYVALARRAY: {
11698 // FIXME: Have to consider ArraySubType
11700 klass = mono_class_from_mono_type (type);
11701 if (klass->element_class == mono_defaults.char_class) {
11702 esize = unicode ? 2 : 1;
11705 esize = mono_class_native_size (klass->element_class, align);
11708 return mspec->data.array_data.num_elem * esize;
11710 case MONO_NATIVE_CUSTOM:
11711 *align = sizeof (gpointer);
11712 return sizeof (gpointer);
11714 case MONO_NATIVE_CURRENCY:
11715 case MONO_NATIVE_VBBYREFSTR:
11717 g_error ("native type %02x not implemented", native_type);
11720 g_assert_not_reached ();
11725 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11733 t = &o->vtable->klass->byval_arg;
11737 case MONO_TYPE_PTR:
11740 case MONO_TYPE_BOOLEAN:
11743 case MONO_TYPE_CHAR:
11748 return mono_object_unbox (o);
11750 case MONO_TYPE_STRING:
11751 switch (string_encoding) {
11752 case MONO_NATIVE_LPWSTR:
11753 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11755 case MONO_NATIVE_LPSTR:
11756 return mono_string_to_lpstr ((MonoString*)o);
11759 g_warning ("marshaling conversion %d not implemented", string_encoding);
11760 g_assert_not_reached ();
11763 case MONO_TYPE_CLASS:
11764 case MONO_TYPE_VALUETYPE: {
11765 MonoMethod *method;
11768 MonoBoolean delete_old = FALSE;
11770 klass = t->data.klass;
11772 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11775 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11776 klass->blittable || klass->enumtype))
11777 return mono_object_unbox (o);
11779 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11781 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11782 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11786 pa [2] = &delete_old;
11788 mono_runtime_invoke (method, NULL, pa, NULL);
11795 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11801 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11809 t = &o->vtable->klass->byval_arg;
11811 case MONO_TYPE_STRING:
11812 switch (string_encoding) {
11813 case MONO_NATIVE_LPWSTR:
11814 case MONO_NATIVE_LPSTR:
11815 mono_marshal_free (ptr);
11818 g_warning ("marshaling conversion %d not implemented", string_encoding);
11819 g_assert_not_reached ();
11822 case MONO_TYPE_CLASS:
11823 case MONO_TYPE_VALUETYPE: {
11824 klass = t->data.klass;
11826 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11827 klass->blittable || klass->enumtype))
11830 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11831 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11837 mono_runtime_invoke (method, NULL, pa, NULL);
11840 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11841 mono_struct_delete_old (klass, ptr);
11844 mono_marshal_free (ptr);
11853 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11855 MonoMethodSignature *sig, *csig;
11856 MonoMethodBuilder *mb;
11860 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11861 mb->method->slot = -1;
11863 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11864 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11866 sig = mono_method_signature (method);
11867 csig = signature_dup (method->klass->image, sig);
11868 csig->generic_param_count = 0;
11870 mono_mb_emit_ldarg (mb, 0);
11871 for (i = 0; i < csig->param_count; i++)
11872 mono_mb_emit_ldarg (mb, i + 1);
11873 mono_mb_emit_managed_call (mb, method, NULL);
11874 mono_mb_emit_byte (mb, CEE_RET);
11876 /* We can corlib internal methods */
11877 mb->skip_visibility = TRUE;
11879 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11887 * The mono_win32_compat_* functions are implementations of inline
11888 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11889 * although not exported by kernel32.
11891 * We map the appropiate kernel32 entries to these functions using
11892 * dllmaps declared in the global etc/mono/config.
11896 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11898 if (!dest || !source)
11901 memcpy (dest, source, length);
11905 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11907 memset (dest, fill, length);
11911 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11913 if (!dest || !source)
11916 memmove (dest, source, length);
11920 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11922 memset (dest, 0, length);
11926 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11931 for (i = 0; i < len; ++i)
11935 g_assert (i < len);
11938 while (byte && !(byte & 1))
11940 g_assert (byte == 1);
11943 *bitmask = buf [i];
11947 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11949 MonoMethodBuilder *mb;
11950 MonoMethodSignature *sig, *csig;
11951 MonoExceptionClause *clause;
11956 int i, param_count, sig_size, pos_leave;
11960 klass = method->klass;
11961 image = method->klass->image;
11962 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11964 if ((res = mono_marshal_find_in_cache (cache, method)))
11967 sig = mono_method_signature (method);
11968 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11970 /* add "this" and exception param */
11971 param_count = sig->param_count + sig->hasthis + 1;
11973 /* dup & extend signature */
11974 csig = mono_metadata_signature_alloc (image, param_count);
11975 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11976 memcpy (csig, sig, sig_size);
11977 csig->param_count = param_count;
11980 csig->call_convention = MONO_CALL_DEFAULT;
11982 if (sig->hasthis) {
11984 csig->params [0] = &klass->byval_arg;
11985 /* move params up by one */
11986 for (i = 0; i < sig->param_count; i++)
11987 csig->params [i + 1] = sig->params [i];
11990 /* setup exception param as byref+[out] */
11991 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11992 &mono_defaults.exception_class->byval_arg);
11993 csig->params [param_count - 1]->byref = 1;
11994 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11996 /* convert struct return to object */
11997 if (MONO_TYPE_ISSTRUCT (sig->ret))
11998 csig->ret = &mono_defaults.object_class->byval_arg;
12000 /* local 0 (temp for exception object) */
12001 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12003 /* local 1 (temp for result) */
12004 if (!MONO_TYPE_IS_VOID (sig->ret))
12005 mono_mb_add_local (mb, sig->ret);
12007 /* clear exception arg */
12008 mono_mb_emit_ldarg (mb, param_count - 1);
12009 mono_mb_emit_byte (mb, CEE_LDNULL);
12010 mono_mb_emit_byte (mb, CEE_STIND_REF);
12013 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12014 clause->try_offset = mono_mb_get_label (mb);
12016 /* push method's args */
12017 for (i = 0; i < param_count - 1; i++) {
12021 mono_mb_emit_ldarg (mb, i);
12023 /* get the byval type of the param */
12024 klass = mono_class_from_mono_type (csig->params [i]);
12025 type = &klass->byval_arg;
12027 /* unbox struct args */
12028 if (MONO_TYPE_ISSTRUCT (type)) {
12029 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12031 /* byref args & and the "this" arg must remain a ptr.
12032 Otherwise make a copy of the value type */
12033 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12034 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12036 csig->params [i] = &mono_defaults.object_class->byval_arg;
12041 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12042 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12044 mono_mb_emit_op (mb, CEE_CALL, method);
12046 /* save result at local 1 */
12047 if (!MONO_TYPE_IS_VOID (sig->ret))
12048 mono_mb_emit_stloc (mb, 1);
12050 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12053 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12054 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12055 clause->data.catch_class = mono_defaults.object_class;
12057 clause->handler_offset = mono_mb_get_label (mb);
12059 /* store exception at local 0 */
12060 mono_mb_emit_stloc (mb, 0);
12061 mono_mb_emit_ldarg (mb, param_count - 1);
12062 mono_mb_emit_ldloc (mb, 0);
12063 mono_mb_emit_byte (mb, CEE_STIND_REF);
12064 mono_mb_emit_branch (mb, CEE_LEAVE);
12066 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12068 mono_mb_set_clauses (mb, 1, clause);
12070 mono_mb_patch_branch (mb, pos_leave);
12073 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12074 mono_mb_emit_ldloc (mb, 1);
12076 /* box the return value */
12077 if (MONO_TYPE_ISSTRUCT (sig->ret))
12078 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12081 mono_mb_emit_byte (mb, CEE_RET);
12083 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12090 * mono_marshal_free_dynamic_wrappers:
12092 * Free wrappers of the dynamic method METHOD.
12095 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12097 MonoImage *image = method->klass->image;
12099 g_assert (method->dynamic);
12101 /* This could be called during shutdown */
12102 if (marshal_mutex_initialized)
12103 mono_marshal_lock ();
12105 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12106 * they could be shared with other methods ?
12108 if (image->runtime_invoke_direct_cache)
12109 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
12110 if (image->delegate_bound_static_invoke_cache)
12111 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
12112 if (image->delegate_abstract_invoke_cache)
12113 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
12115 if (marshal_mutex_initialized)
12116 mono_marshal_unlock ();
12120 * mono_marshal_free_inflated_wrappers:
12122 * Free wrappers of the inflated method METHOD.
12126 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
12128 SignatureMethodPair *pair = (SignatureMethodPair*)key;
12129 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
12131 return mono_metadata_signature_equal (pair->sig, sig);
12135 mono_marshal_free_inflated_wrappers (MonoMethod *method)
12137 MonoMethodSignature *sig = method->signature;
12139 g_assert (method->is_inflated);
12141 /* Ignore calls occuring late during cleanup. */
12142 if (!marshal_mutex_initialized)
12145 mono_marshal_lock ();
12147 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12148 * they could be shared with other methods ?
12152 * indexed by MonoMethodSignature
12154 /* FIXME: This could remove unrelated wrappers as well */
12155 if (sig && method->klass->image->delegate_begin_invoke_cache)
12156 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12157 if (sig && method->klass->image->delegate_end_invoke_cache)
12158 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12159 if (sig && method->klass->image->delegate_invoke_cache)
12160 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12161 if (sig && method->klass->image->runtime_invoke_cache)
12162 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12165 * indexed by SignatureMethodPair
12167 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12168 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12169 signature_method_pair_matches_signature, (gpointer)sig);
12171 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12172 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12173 signature_method_pair_matches_signature, (gpointer)sig);
12176 * indexed by MonoMethod pointers
12178 if (method->klass->image->runtime_invoke_direct_cache)
12179 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12180 if (method->klass->image->managed_wrapper_cache)
12181 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12182 if (method->klass->image->native_wrapper_cache)
12183 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12184 if (method->klass->image->remoting_invoke_cache)
12185 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12186 if (method->klass->image->synchronized_cache)
12187 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12188 if (method->klass->image->unbox_wrapper_cache)
12189 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12190 if (method->klass->image->cominterop_invoke_cache)
12191 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12192 if (method->klass->image->cominterop_wrapper_cache)
12193 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12194 if (method->klass->image->thunk_invoke_cache)
12195 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12197 mono_marshal_unlock ();