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_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
120 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
123 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
125 static MonoAsyncResult *
126 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
129 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
132 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
135 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
138 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
141 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
143 static MonoReflectionType *
144 type_from_handle (MonoType *handle);
147 mono_marshal_set_last_error_windows (int error);
149 static void init_safe_handle (void);
151 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
152 static MonoMethod *sh_dangerous_add_ref;
153 static MonoMethod *sh_dangerous_release;
159 sh_dangerous_add_ref = mono_class_get_method_from_name (
160 mono_defaults.safehandle_class, "DangerousAddRef", 1);
161 sh_dangerous_release = mono_class_get_method_from_name (
162 mono_defaults.safehandle_class, "DangerousRelease", 0);
166 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
168 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
170 mono_register_jit_icall (func, name, sig, save);
173 static MonoMethodSignature*
174 signature_dup (MonoImage *image, MonoMethodSignature *sig)
176 MonoMethodSignature *res;
179 res = mono_metadata_signature_alloc (image, sig->param_count);
180 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
181 memcpy (res, sig, sigsize);
187 mono_signature_no_pinvoke (MonoMethod *method)
189 MonoMethodSignature *sig = mono_method_signature (method);
191 sig = signature_dup (method->klass->image, sig);
192 sig->pinvoke = FALSE;
199 mono_marshal_init (void)
201 static gboolean module_initialized = FALSE;
203 if (!module_initialized) {
204 module_initialized = TRUE;
205 InitializeCriticalSection (&marshal_mutex);
206 marshal_mutex_initialized = TRUE;
207 mono_native_tls_alloc (&last_error_tls_id, NULL);
208 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
210 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
211 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
212 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
213 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
214 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
215 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
216 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
217 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
218 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
219 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
220 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
221 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
222 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
223 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
224 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
225 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
226 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
227 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
228 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
229 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
230 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
231 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
232 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
233 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
234 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
235 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
236 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
237 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
238 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
239 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
240 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
241 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
242 register_icall (g_free, "g_free", "void ptr", FALSE);
243 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
244 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
245 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
246 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
247 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
248 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
249 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
250 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
251 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
252 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
253 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
254 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
255 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
256 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
257 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
258 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
260 mono_cominterop_init ();
265 mono_marshal_cleanup (void)
267 mono_cominterop_cleanup ();
269 mono_native_tls_free (load_type_info_tls_id);
270 mono_native_tls_free (last_error_tls_id);
271 DeleteCriticalSection (&marshal_mutex);
272 marshal_mutex_initialized = FALSE;
275 MonoClass *byte_array_class;
276 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
277 static MonoMethod *method_set_context, *method_get_context;
278 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
281 mono_remoting_marshal_init (void)
285 static gboolean module_initialized = FALSE;
287 if (!module_initialized) {
288 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
289 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
290 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
291 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
293 klass = mono_defaults.real_proxy_class;
294 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
296 klass = mono_defaults.exception_class;
297 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
299 klass = mono_defaults.thread_class;
300 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
302 klass = mono_defaults.appdomain_class;
303 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
304 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
306 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
307 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
309 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
310 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
312 module_initialized = TRUE;
317 mono_delegate_to_ftnptr (MonoDelegate *delegate)
319 MonoMethod *method, *wrapper;
321 uint32_t target_handle = 0;
326 if (delegate->delegate_trampoline)
327 return delegate->delegate_trampoline;
329 klass = ((MonoObject *)delegate)->vtable->klass;
330 g_assert (klass->delegate);
332 method = delegate->method;
334 if (mono_method_signature (method)->pinvoke) {
335 const char *exc_class, *exc_arg;
338 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
340 g_assert (exc_class);
341 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
346 if (delegate->target) {
347 /* Produce a location which can be embedded in JITted code */
348 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
351 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
353 delegate->delegate_trampoline = mono_compile_method (wrapper);
355 // Add the delegate to the delegate hash table
356 delegate_hash_table_add (delegate);
358 /* when the object is collected, collect the dynamic method, too */
359 mono_object_register_finalizer ((MonoObject*)delegate);
361 return delegate->delegate_trampoline;
365 * this hash table maps from a delegate trampoline object to a weak reference
366 * of the delegate. As an optimizations with a non-moving GC we store the
367 * object pointer itself, otherwise we use a GC handle.
369 static GHashTable *delegate_hash_table;
372 delegate_hash_table_new (void) {
373 return g_hash_table_new (NULL, NULL);
377 delegate_hash_table_remove (MonoDelegate *d)
379 #ifdef HAVE_MOVING_COLLECTOR
382 mono_marshal_lock ();
383 if (delegate_hash_table == NULL)
384 delegate_hash_table = delegate_hash_table_new ();
385 #ifdef HAVE_MOVING_COLLECTOR
386 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
388 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
389 mono_marshal_unlock ();
390 #ifdef HAVE_MOVING_COLLECTOR
391 mono_gchandle_free (gchandle);
396 delegate_hash_table_add (MonoDelegate *d)
398 #ifdef HAVE_MOVING_COLLECTOR
399 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
400 guint32 old_gchandle;
402 mono_marshal_lock ();
403 if (delegate_hash_table == NULL)
404 delegate_hash_table = delegate_hash_table_new ();
405 #ifdef HAVE_MOVING_COLLECTOR
406 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
407 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
409 mono_gchandle_free (old_gchandle);
411 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
413 mono_marshal_unlock ();
417 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
419 #ifdef HAVE_MOVING_COLLECTOR
427 mono_marshal_lock ();
428 if (delegate_hash_table == NULL)
429 delegate_hash_table = delegate_hash_table_new ();
431 #ifdef HAVE_MOVING_COLLECTOR
432 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
433 mono_marshal_unlock ();
435 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
439 d = g_hash_table_lookup (delegate_hash_table, ftn);
440 mono_marshal_unlock ();
443 /* This is a native function, so construct a delegate for it */
444 static MonoClass *UnmanagedFunctionPointerAttribute;
445 MonoMethodSignature *sig;
447 MonoMarshalSpec **mspecs;
448 MonoCustomAttrInfo *cinfo;
449 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
450 MonoMethod *invoke = mono_get_delegate_invoke (klass);
451 MonoMethodPInvoke piinfo;
454 memset (&piinfo, 0, sizeof (piinfo));
455 if (!UnmanagedFunctionPointerAttribute)
456 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
458 /* The attribute is only available in Net 2.0 */
459 if (UnmanagedFunctionPointerAttribute) {
461 * The pinvoke attributes are stored in a real custom attribute so we have to
464 cinfo = mono_custom_attrs_from_class (klass);
466 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
468 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
471 mono_custom_attrs_free (cinfo);
475 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
476 mono_method_get_marshal_info (invoke, mspecs);
477 /* Freed below so don't alloc from mempool */
478 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
481 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
483 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
485 mono_metadata_free_marshal_spec (mspecs [i]);
489 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
490 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
493 if (d->object.vtable->domain != mono_domain_get ())
494 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
500 mono_delegate_free_ftnptr (MonoDelegate *delegate)
505 delegate_hash_table_remove (delegate);
507 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
509 if (!delegate->target) {
510 /* The wrapper method is shared between delegates -> no need to free it */
517 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
520 method_data = ((MonoMethodWrapper*)ji->method)->method_data;
522 /*the target gchandle is the first entry after size and the wrapper itself.*/
523 gchandle = GPOINTER_TO_UINT (method_data [2]);
526 mono_gchandle_free (gchandle);
528 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
533 mono_array_to_savearray (MonoArray *array)
538 g_assert_not_reached ();
543 mono_array_to_lparray (MonoArray *array)
545 gpointer *nativeArray = NULL;
546 int nativeArraySize = 0;
555 klass = array->obj.vtable->klass;
557 switch (klass->element_class->byval_arg.type) {
559 g_assert_not_reached ();
562 case MONO_TYPE_CLASS:
563 nativeArraySize = array->max_length;
564 nativeArray = malloc(sizeof(gpointer) * nativeArraySize);
565 for(i = 0; i < nativeArraySize; ++i)
566 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((gpointer*)array->vector)[i]);
570 case MONO_TYPE_BOOLEAN:
583 case MONO_TYPE_VALUETYPE:
587 case MONO_TYPE_GENERICINST:
588 case MONO_TYPE_OBJECT:
589 case MONO_TYPE_ARRAY:
590 case MONO_TYPE_SZARRAY:
591 case MONO_TYPE_STRING:
593 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
594 g_assert_not_reached ();
597 return array->vector;
601 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
612 klass = array->obj.vtable->klass;
614 switch (klass->element_class->byval_arg.type) {
615 case MONO_TYPE_CLASS:
616 for(i = 0; i < array->max_length; ++i)
617 mono_marshal_free_ccw(nativeArray[i]);
625 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
627 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
629 if (elclass == mono_defaults.byte_class) {
630 GError *error = NULL;
634 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
637 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
641 g_error_free (error);
644 g_assert_not_reached ();
648 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
650 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
652 if (elclass == mono_defaults.byte_class) {
654 GError *error = NULL;
656 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
658 MonoException *exc = mono_get_exception_argument ("string", error->message);
659 g_error_free (error);
660 mono_raise_exception (exc);
663 memcpy (native_arr, as, MIN (strlen (as), elnum));
666 g_assert_not_reached ();
671 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
673 GError *error = NULL;
683 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
685 if (items_written > mono_stringbuilder_capacity (sb))
686 items_written = mono_stringbuilder_capacity (sb);
689 if (! sb->str || sb->str == sb->cached_str) {
690 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
691 sb->cached_str = NULL;
694 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
695 sb->length = items_written;
697 g_error_free (error);
703 mono_string_utf8_to_builder2 (char *text)
706 MonoStringBuilder *sb;
707 static MonoClass *string_builder_class;
708 static MonoMethod *sb_ctor;
715 if (!string_builder_class) {
716 MonoMethodDesc *desc;
718 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
719 g_assert (string_builder_class);
720 desc = mono_method_desc_new (":.ctor(int)", FALSE);
721 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
723 mono_method_desc_free (desc);
728 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
731 mono_runtime_invoke (sb_ctor, sb, args, &exc);
734 mono_string_utf8_to_builder (sb, text);
740 * FIXME: This routine does not seem to do what it seems to do
741 * the @text is never copied into the string builder
744 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
751 g_assert (mono_string_chars (sb->str) == text);
753 for (len = 0; text [len] != 0; ++len)
760 mono_string_utf16_to_builder2 (gunichar2 *text)
763 MonoStringBuilder *sb;
764 static MonoClass *string_builder_class;
765 static MonoMethod *sb_ctor;
772 if (!string_builder_class) {
773 MonoMethodDesc *desc;
775 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
776 g_assert (string_builder_class);
777 desc = mono_method_desc_new (":.ctor(int)", FALSE);
778 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
780 mono_method_desc_free (desc);
783 for (len = 0; text [len] != 0; ++len)
786 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
789 mono_runtime_invoke (sb_ctor, sb, args, &exc);
793 memcpy (mono_string_chars (sb->str), text, len * 2);
799 * mono_string_builder_to_utf8:
800 * @sb: the string builder
802 * Converts to utf8 the contents of the MonoStringBuilder.
804 * Returns: a utf8 string with the contents of the StringBuilder.
806 * The return value must be released with g_free.
809 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
811 GError *error = NULL;
812 gchar *tmp, *res = NULL;
817 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
819 * The sb could have been allocated with the default capacity and be empty.
820 * we need to alloc a buffer of the default capacity in this case.
822 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
823 sb->cached_str = NULL;
826 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
828 g_error_free (error);
829 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
831 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
832 memcpy (res, tmp, sb->length + 1);
840 * mono_string_builder_to_utf16:
841 * @sb: the string builder
843 * Converts to utf16 the contents of the MonoStringBuilder.
845 * Returns: a utf16 string with the contents of the StringBuilder.
847 * The return value must not be freed.
850 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
858 * The stringbuilder might not have ownership of this string. If this is
859 * the case, we must duplicate the string, so that we don't munge immutable
862 if (sb->str == sb->cached_str) {
864 * The sb could have been allocated with the default capacity and be empty.
865 * we need to alloc a buffer of the default capacity in this case.
867 if (sb->str->length == 0)
868 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
870 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
871 sb->cached_str = NULL;
875 *(mono_string_chars (sb->str)) = '\0';
877 return mono_string_chars (sb->str);
881 mono_string_to_lpstr (MonoString *s)
886 GError *error = NULL;
892 as = CoTaskMemAlloc (1);
897 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
899 MonoException *exc = mono_get_exception_argument ("string", error->message);
900 g_error_free (error);
901 mono_raise_exception(exc);
904 as = CoTaskMemAlloc (len + 1);
905 memcpy (as, tmp, len + 1);
910 return mono_string_to_utf8 (s);
915 mono_string_to_ansibstr (MonoString *string_obj)
917 g_error ("UnmanagedMarshal.BStr is not implemented.");
922 * mono_string_to_byvalstr:
923 * @dst: Where to store the null-terminated utf8 decoded string.
924 * @src: the MonoString to copy.
925 * @size: the maximum number of bytes to copy.
927 * Copies the MonoString pointed to by @src as a utf8 string
928 * into @dst, it copies at most @size bytes into the destination.
931 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
936 g_assert (dst != NULL);
939 memset (dst, 0, size);
943 s = mono_string_to_utf8 (src);
944 len = MIN (size, strlen (s));
947 memcpy (dst, s, len);
952 * mono_string_to_byvalwstr:
953 * @dst: Where to store the null-terminated utf16 decoded string.
954 * @src: the MonoString to copy.
955 * @size: the maximum number of bytes to copy.
957 * Copies the MonoString pointed to by @src as a utf16 string into
958 * @dst, it copies at most @size bytes into the destination (including
959 * a terminating 16-bit zero terminator).
962 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
966 g_assert (dst != NULL);
970 memset (dst, 0, size * 2);
974 len = MIN (size, (mono_string_length (src)));
975 memcpy (dst, mono_string_chars (src), size * 2);
976 if (size <= mono_string_length (src))
978 *((gunichar2 *) dst + len) = 0;
982 mono_string_new_len_wrapper (const char *text, guint length)
984 return mono_string_new_len (mono_domain_get (), text, length);
988 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
991 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
992 mono_mb_emit_byte (mb, CEE_LDIND_I);
993 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
994 mono_mb_emit_byte (mb, CEE_ADD);
995 mono_mb_emit_byte (mb, CEE_LDIND_I);
996 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
997 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
998 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
999 pos = mono_mb_emit_branch (mb, branch_code);
1004 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1007 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1008 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1009 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1010 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1011 mono_mb_emit_icon (mb, -1);
1012 pos = mono_mb_emit_branch (mb, branch_code);
1017 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
1019 static int offset = -1;
1023 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
1025 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
1026 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1027 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
1028 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1029 mono_mb_emit_ldflda (mb, offset);
1030 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1031 mono_mb_emit_icon (mb, mask);
1032 mono_mb_emit_byte (mb, CEE_AND);
1033 mono_mb_emit_icon (mb, 0);
1034 return mono_mb_emit_branch (mb, branch_code);
1038 * mono_mb_emit_exception_marshal_directive:
1040 * This function assumes ownership of MSG, which should be malloc-ed.
1043 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1048 s = mono_image_strdup (mb->method->klass->image, msg);
1053 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1057 mono_type_to_ldind (MonoType *type)
1063 switch (type->type) {
1065 return CEE_LDIND_I1;
1067 case MONO_TYPE_BOOLEAN:
1068 return CEE_LDIND_U1;
1070 return CEE_LDIND_I2;
1072 case MONO_TYPE_CHAR:
1073 return CEE_LDIND_U2;
1075 return CEE_LDIND_I4;
1077 return CEE_LDIND_U4;
1081 case MONO_TYPE_FNPTR:
1083 case MONO_TYPE_CLASS:
1084 case MONO_TYPE_STRING:
1085 case MONO_TYPE_OBJECT:
1086 case MONO_TYPE_SZARRAY:
1087 case MONO_TYPE_ARRAY:
1088 return CEE_LDIND_REF;
1091 return CEE_LDIND_I8;
1093 return CEE_LDIND_R4;
1095 return CEE_LDIND_R8;
1096 case MONO_TYPE_VALUETYPE:
1097 if (type->data.klass->enumtype) {
1098 type = mono_class_enum_basetype (type->data.klass);
1102 case MONO_TYPE_TYPEDBYREF:
1104 case MONO_TYPE_GENERICINST:
1105 type = &type->data.generic_class->container_class->byval_arg;
1108 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1114 mono_type_to_stind (MonoType *type)
1120 switch (type->type) {
1123 case MONO_TYPE_BOOLEAN:
1124 return CEE_STIND_I1;
1127 case MONO_TYPE_CHAR:
1128 return CEE_STIND_I2;
1131 return CEE_STIND_I4;
1135 case MONO_TYPE_FNPTR:
1137 case MONO_TYPE_CLASS:
1138 case MONO_TYPE_STRING:
1139 case MONO_TYPE_OBJECT:
1140 case MONO_TYPE_SZARRAY:
1141 case MONO_TYPE_ARRAY:
1142 return CEE_STIND_REF;
1145 return CEE_STIND_I8;
1147 return CEE_STIND_R4;
1149 return CEE_STIND_R8;
1150 case MONO_TYPE_VALUETYPE:
1151 if (type->data.klass->enumtype) {
1152 type = mono_class_enum_basetype (type->data.klass);
1156 case MONO_TYPE_TYPEDBYREF:
1158 case MONO_TYPE_GENERICINST:
1159 type = &type->data.generic_class->container_class->byval_arg;
1162 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1168 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1171 case MONO_MARSHAL_CONV_BOOL_I4:
1172 mono_mb_emit_ldloc (mb, 1);
1173 mono_mb_emit_ldloc (mb, 0);
1174 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1175 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1176 mono_mb_emit_byte (mb, 3);
1177 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1178 mono_mb_emit_byte (mb, CEE_BR_S);
1179 mono_mb_emit_byte (mb, 1);
1180 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1181 mono_mb_emit_byte (mb, CEE_STIND_I1);
1183 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1184 mono_mb_emit_ldloc (mb, 1);
1185 mono_mb_emit_ldloc (mb, 0);
1186 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1187 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1188 mono_mb_emit_byte (mb, 3);
1189 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1190 mono_mb_emit_byte (mb, CEE_BR_S);
1191 mono_mb_emit_byte (mb, 1);
1192 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1193 mono_mb_emit_byte (mb, CEE_STIND_I1);
1195 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1196 MonoClass *eklass = NULL;
1199 if (type->type == MONO_TYPE_SZARRAY) {
1200 eklass = type->data.klass;
1202 g_assert_not_reached ();
1205 esize = mono_class_native_size (eklass, NULL);
1207 /* create a new array */
1208 mono_mb_emit_ldloc (mb, 1);
1209 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1210 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1211 mono_mb_emit_byte (mb, CEE_STIND_I);
1213 if (eklass->blittable) {
1214 /* copy the elements */
1215 mono_mb_emit_ldloc (mb, 1);
1216 mono_mb_emit_byte (mb, CEE_LDIND_I);
1217 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1218 mono_mb_emit_byte (mb, CEE_ADD);
1219 mono_mb_emit_ldloc (mb, 0);
1220 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1221 mono_mb_emit_byte (mb, CEE_PREFIX1);
1222 mono_mb_emit_byte (mb, CEE_CPBLK);
1225 int array_var, src_var, dst_var, index_var;
1226 guint32 label2, label3;
1228 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1229 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1230 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1233 mono_mb_emit_ldloc (mb, 1);
1234 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1235 mono_mb_emit_stloc (mb, array_var);
1237 /* save the old src pointer */
1238 mono_mb_emit_ldloc (mb, 0);
1239 mono_mb_emit_stloc (mb, src_var);
1240 /* save the old dst pointer */
1241 mono_mb_emit_ldloc (mb, 1);
1242 mono_mb_emit_stloc (mb, dst_var);
1244 /* Emit marshalling loop */
1245 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1246 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1247 mono_mb_emit_stloc (mb, index_var);
1250 label2 = mono_mb_get_label (mb);
1251 mono_mb_emit_ldloc (mb, index_var);
1252 mono_mb_emit_ldloc (mb, array_var);
1253 mono_mb_emit_byte (mb, CEE_LDLEN);
1254 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1256 /* src is already set */
1259 mono_mb_emit_ldloc (mb, array_var);
1260 mono_mb_emit_ldloc (mb, index_var);
1261 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1262 mono_mb_emit_stloc (mb, 1);
1264 /* Do the conversion */
1265 emit_struct_conv (mb, eklass, TRUE);
1268 mono_mb_emit_add_to_local (mb, index_var, 1);
1270 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1272 mono_mb_patch_branch (mb, label3);
1274 /* restore the old src pointer */
1275 mono_mb_emit_ldloc (mb, src_var);
1276 mono_mb_emit_stloc (mb, 0);
1277 /* restore the old dst pointer */
1278 mono_mb_emit_ldloc (mb, dst_var);
1279 mono_mb_emit_stloc (mb, 1);
1283 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1284 MonoClass *eclass = mono_defaults.char_class;
1286 /* create a new array */
1287 mono_mb_emit_ldloc (mb, 1);
1288 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1289 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1290 mono_mb_emit_byte (mb, CEE_STIND_REF);
1292 mono_mb_emit_ldloc (mb, 1);
1293 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1294 mono_mb_emit_ldloc (mb, 0);
1295 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1296 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1297 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1300 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_ldloc (mb, 0);
1303 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1304 mono_mb_emit_byte (mb, CEE_STIND_REF);
1306 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1307 mono_mb_emit_ldloc (mb, 1);
1308 mono_mb_emit_ldloc (mb, 0);
1309 mono_mb_emit_icall (mb, mono_string_from_utf16);
1310 mono_mb_emit_byte (mb, CEE_STIND_REF);
1312 case MONO_MARSHAL_CONV_STR_LPTSTR:
1313 mono_mb_emit_ldloc (mb, 1);
1314 mono_mb_emit_ldloc (mb, 0);
1315 mono_mb_emit_byte (mb, CEE_LDIND_I);
1317 mono_mb_emit_icall (mb, mono_string_from_utf16);
1319 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1321 mono_mb_emit_byte (mb, CEE_STIND_REF);
1323 case MONO_MARSHAL_CONV_STR_LPSTR:
1324 mono_mb_emit_ldloc (mb, 1);
1325 mono_mb_emit_ldloc (mb, 0);
1326 mono_mb_emit_byte (mb, CEE_LDIND_I);
1327 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1328 mono_mb_emit_byte (mb, CEE_STIND_REF);
1330 case MONO_MARSHAL_CONV_STR_LPWSTR:
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_byte (mb, CEE_LDIND_I);
1334 mono_mb_emit_icall (mb, mono_string_from_utf16);
1335 mono_mb_emit_byte (mb, CEE_STIND_REF);
1337 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1338 MonoClass *klass = mono_class_from_mono_type (type);
1339 int src_var, dst_var;
1341 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1342 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1344 /* *dst = new object */
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1347 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1348 mono_mb_emit_byte (mb, CEE_STIND_REF);
1350 /* save the old src pointer */
1351 mono_mb_emit_ldloc (mb, 0);
1352 mono_mb_emit_stloc (mb, src_var);
1353 /* save the old dst pointer */
1354 mono_mb_emit_ldloc (mb, 1);
1355 mono_mb_emit_stloc (mb, dst_var);
1357 /* dst = pointer to newly created object data */
1358 mono_mb_emit_ldloc (mb, 1);
1359 mono_mb_emit_byte (mb, CEE_LDIND_I);
1360 mono_mb_emit_icon (mb, sizeof (MonoObject));
1361 mono_mb_emit_byte (mb, CEE_ADD);
1362 mono_mb_emit_stloc (mb, 1);
1364 emit_struct_conv (mb, klass, TRUE);
1366 /* restore the old src pointer */
1367 mono_mb_emit_ldloc (mb, src_var);
1368 mono_mb_emit_stloc (mb, 0);
1369 /* restore the old dst pointer */
1370 mono_mb_emit_ldloc (mb, dst_var);
1371 mono_mb_emit_stloc (mb, 1);
1374 case MONO_MARSHAL_CONV_DEL_FTN: {
1375 MonoClass *klass = mono_class_from_mono_type (type);
1377 mono_mb_emit_ldloc (mb, 1);
1378 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1379 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1380 mono_mb_emit_ldloc (mb, 0);
1381 mono_mb_emit_byte (mb, CEE_LDIND_I);
1382 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1383 mono_mb_emit_byte (mb, CEE_STIND_REF);
1386 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1387 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1391 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1392 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1393 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1394 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1396 #endif /* DISABLE_COM */
1398 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1400 * Passing SafeHandles as ref does not allow the unmanaged code
1401 * to change the SafeHandle value. If the value is changed,
1402 * we should issue a diagnostic exception (NotSupportedException)
1403 * that informs the user that changes to handles in unmanaged code
1406 * Since we currently have no access to the original
1407 * SafeHandle that was used during the marshalling,
1408 * for now we just ignore this, and ignore/discard any
1409 * changes that might have happened to the handle.
1414 case MONO_MARSHAL_CONV_HANDLEREF: {
1416 * Passing HandleRefs in a struct that is ref()ed does not
1417 * copy the values back to the HandleRef
1422 case MONO_MARSHAL_CONV_STR_BSTR:
1423 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1424 case MONO_MARSHAL_CONV_STR_TBSTR:
1425 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1427 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1429 mono_mb_emit_exception_marshal_directive (mb, msg);
1436 conv_to_icall (MonoMarshalConv conv)
1439 case MONO_MARSHAL_CONV_STR_LPWSTR:
1440 return mono_marshal_string_to_utf16;
1441 case MONO_MARSHAL_CONV_LPWSTR_STR:
1442 return mono_string_from_utf16;
1443 case MONO_MARSHAL_CONV_LPTSTR_STR:
1445 return mono_string_from_utf16;
1447 return mono_string_new_wrapper;
1449 case MONO_MARSHAL_CONV_LPSTR_STR:
1450 return mono_string_new_wrapper;
1451 case MONO_MARSHAL_CONV_STR_LPTSTR:
1453 return mono_marshal_string_to_utf16;
1455 return mono_string_to_lpstr;
1457 case MONO_MARSHAL_CONV_STR_LPSTR:
1458 return mono_string_to_lpstr;
1459 case MONO_MARSHAL_CONV_STR_BSTR:
1460 return mono_string_to_bstr;
1461 case MONO_MARSHAL_CONV_BSTR_STR:
1462 return mono_string_from_bstr;
1463 case MONO_MARSHAL_CONV_STR_TBSTR:
1464 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1465 return mono_string_to_ansibstr;
1466 case MONO_MARSHAL_CONV_SB_LPSTR:
1467 return mono_string_builder_to_utf8;
1468 case MONO_MARSHAL_CONV_SB_LPTSTR:
1470 return mono_string_builder_to_utf16;
1472 return mono_string_builder_to_utf8;
1474 case MONO_MARSHAL_CONV_SB_LPWSTR:
1475 return mono_string_builder_to_utf16;
1476 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1477 return mono_array_to_savearray;
1478 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1479 return mono_array_to_lparray;
1480 case MONO_MARSHAL_FREE_LPARRAY:
1481 return mono_free_lparray;
1482 case MONO_MARSHAL_CONV_DEL_FTN:
1483 return mono_delegate_to_ftnptr;
1484 case MONO_MARSHAL_CONV_FTN_DEL:
1485 return mono_ftnptr_to_delegate;
1486 case MONO_MARSHAL_CONV_LPSTR_SB:
1487 return mono_string_utf8_to_builder;
1488 case MONO_MARSHAL_CONV_LPTSTR_SB:
1490 return mono_string_utf16_to_builder;
1492 return mono_string_utf8_to_builder;
1494 case MONO_MARSHAL_CONV_LPWSTR_SB:
1495 return mono_string_utf16_to_builder;
1496 case MONO_MARSHAL_FREE_ARRAY:
1497 return mono_marshal_free_array;
1498 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1499 return mono_string_to_byvalstr;
1500 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1501 return mono_string_to_byvalwstr;
1503 g_assert_not_reached ();
1510 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1515 case MONO_MARSHAL_CONV_BOOL_I4:
1516 mono_mb_emit_ldloc (mb, 1);
1517 mono_mb_emit_ldloc (mb, 0);
1518 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1519 mono_mb_emit_byte (mb, CEE_STIND_I4);
1521 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1522 mono_mb_emit_ldloc (mb, 1);
1523 mono_mb_emit_ldloc (mb, 0);
1524 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1525 mono_mb_emit_byte (mb, CEE_NEG);
1526 mono_mb_emit_byte (mb, CEE_STIND_I2);
1528 case MONO_MARSHAL_CONV_STR_LPWSTR:
1529 case MONO_MARSHAL_CONV_STR_LPSTR:
1530 case MONO_MARSHAL_CONV_STR_LPTSTR:
1531 case MONO_MARSHAL_CONV_STR_BSTR:
1532 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1533 case MONO_MARSHAL_CONV_STR_TBSTR: {
1536 /* free space if free == true */
1537 mono_mb_emit_ldloc (mb, 2);
1538 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1539 mono_mb_emit_ldloc (mb, 1);
1540 mono_mb_emit_byte (mb, CEE_LDIND_I);
1541 mono_mb_emit_icall (mb, g_free);
1542 mono_mb_patch_short_branch (mb, pos);
1544 mono_mb_emit_ldloc (mb, 1);
1545 mono_mb_emit_ldloc (mb, 0);
1546 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1547 mono_mb_emit_icall (mb, conv_to_icall (conv));
1548 mono_mb_emit_byte (mb, CEE_STIND_I);
1551 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1552 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1553 case MONO_MARSHAL_CONV_DEL_FTN:
1554 mono_mb_emit_ldloc (mb, 1);
1555 mono_mb_emit_ldloc (mb, 0);
1556 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1557 mono_mb_emit_icall (mb, conv_to_icall (conv));
1558 mono_mb_emit_byte (mb, CEE_STIND_I);
1560 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1561 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1564 mono_mb_emit_ldloc (mb, 1); /* dst */
1565 mono_mb_emit_ldloc (mb, 0);
1566 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1567 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1568 mono_mb_emit_icall (mb, conv_to_icall (conv));
1571 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1572 MonoClass *eklass = NULL;
1575 if (type->type == MONO_TYPE_SZARRAY) {
1576 eklass = type->data.klass;
1578 g_assert_not_reached ();
1581 if (eklass->valuetype)
1582 esize = mono_class_native_size (eklass, NULL);
1584 esize = sizeof (gpointer);
1586 mono_mb_emit_ldloc (mb, 0);
1587 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1588 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1590 if (eklass->blittable) {
1591 mono_mb_emit_ldloc (mb, 1);
1592 mono_mb_emit_ldloc (mb, 0);
1593 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1594 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1595 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1596 mono_mb_emit_byte (mb, CEE_PREFIX1);
1597 mono_mb_emit_byte (mb, CEE_CPBLK);
1599 int array_var, src_var, dst_var, index_var;
1600 guint32 label2, label3;
1602 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1603 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1604 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1607 mono_mb_emit_ldloc (mb, 0);
1608 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1609 mono_mb_emit_stloc (mb, array_var);
1611 /* save the old src pointer */
1612 mono_mb_emit_ldloc (mb, 0);
1613 mono_mb_emit_stloc (mb, src_var);
1614 /* save the old dst pointer */
1615 mono_mb_emit_ldloc (mb, 1);
1616 mono_mb_emit_stloc (mb, dst_var);
1618 /* Emit marshalling loop */
1619 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1620 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1621 mono_mb_emit_stloc (mb, index_var);
1624 label2 = mono_mb_get_label (mb);
1625 mono_mb_emit_ldloc (mb, index_var);
1626 mono_mb_emit_ldloc (mb, array_var);
1627 mono_mb_emit_byte (mb, CEE_LDLEN);
1628 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1631 mono_mb_emit_ldloc (mb, array_var);
1632 mono_mb_emit_ldloc (mb, index_var);
1633 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1634 mono_mb_emit_stloc (mb, 0);
1636 /* dst is already set */
1638 /* Do the conversion */
1639 emit_struct_conv (mb, eklass, FALSE);
1642 mono_mb_emit_add_to_local (mb, index_var, 1);
1644 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1646 mono_mb_patch_branch (mb, label3);
1648 /* restore the old src pointer */
1649 mono_mb_emit_ldloc (mb, src_var);
1650 mono_mb_emit_stloc (mb, 0);
1651 /* restore the old dst pointer */
1652 mono_mb_emit_ldloc (mb, dst_var);
1653 mono_mb_emit_stloc (mb, 1);
1656 mono_mb_patch_branch (mb, pos);
1659 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1660 mono_mb_emit_ldloc (mb, 0);
1661 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1662 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1664 mono_mb_emit_ldloc (mb, 1);
1665 mono_mb_emit_ldloc (mb, 0);
1666 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1667 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1668 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1669 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1670 mono_mb_patch_short_branch (mb, pos);
1673 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1674 int src_var, dst_var;
1676 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1677 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1679 mono_mb_emit_ldloc (mb, 0);
1680 mono_mb_emit_byte (mb, CEE_LDIND_I);
1681 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1683 /* save the old src pointer */
1684 mono_mb_emit_ldloc (mb, 0);
1685 mono_mb_emit_stloc (mb, src_var);
1686 /* save the old dst pointer */
1687 mono_mb_emit_ldloc (mb, 1);
1688 mono_mb_emit_stloc (mb, dst_var);
1690 /* src = pointer to object data */
1691 mono_mb_emit_ldloc (mb, 0);
1692 mono_mb_emit_byte (mb, CEE_LDIND_I);
1693 mono_mb_emit_icon (mb, sizeof (MonoObject));
1694 mono_mb_emit_byte (mb, CEE_ADD);
1695 mono_mb_emit_stloc (mb, 0);
1697 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1699 /* restore the old src pointer */
1700 mono_mb_emit_ldloc (mb, src_var);
1701 mono_mb_emit_stloc (mb, 0);
1702 /* restore the old dst pointer */
1703 mono_mb_emit_ldloc (mb, dst_var);
1704 mono_mb_emit_stloc (mb, 1);
1706 mono_mb_patch_branch (mb, pos);
1711 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1712 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1713 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1714 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1716 #endif /* DISABLE_COM */
1718 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1719 int dar_release_slot, pos;
1721 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1724 * The following is ifdefed-out, because I have no way of doing the
1725 * DangerousRelease when destroying the structure
1728 /* set release = false */
1729 mono_mb_emit_icon (mb, 0);
1730 mono_mb_emit_stloc (mb, dar_release_slot);
1731 if (!sh_dangerous_add_ref)
1732 init_safe_handle ();
1734 /* safehandle.DangerousAddRef (ref release) */
1735 mono_mb_emit_ldloc (mb, 0); /* the source */
1736 mono_mb_emit_byte (mb, CEE_LDIND_I);
1737 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1738 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1740 mono_mb_emit_ldloc (mb, 0);
1741 mono_mb_emit_byte (mb, CEE_LDIND_I);
1742 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1743 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1744 mono_mb_patch_branch (mb, pos);
1746 /* Pull the handle field from SafeHandle */
1747 mono_mb_emit_ldloc (mb, 1);
1748 mono_mb_emit_ldloc (mb, 0);
1749 mono_mb_emit_byte (mb, CEE_LDIND_I);
1750 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1751 mono_mb_emit_byte (mb, CEE_LDIND_I);
1752 mono_mb_emit_byte (mb, CEE_STIND_I);
1756 case MONO_MARSHAL_CONV_HANDLEREF: {
1757 mono_mb_emit_ldloc (mb, 1);
1758 mono_mb_emit_ldloc (mb, 0);
1759 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1760 mono_mb_emit_byte (mb, CEE_ADD);
1761 mono_mb_emit_byte (mb, CEE_LDIND_I);
1762 mono_mb_emit_byte (mb, CEE_STIND_I);
1767 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1768 MonoException *exc = mono_get_exception_not_implemented (msg);
1769 g_warning ("%s", msg);
1771 mono_raise_exception (exc);
1777 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1778 MonoMarshalNative string_encoding)
1780 MonoMarshalType *info;
1784 emit_struct_conv(mb, klass->parent, to_object);
1786 info = mono_marshal_load_type_info (klass);
1788 if (info->native_size == 0)
1791 if (klass->blittable) {
1792 int msize = mono_class_value_size (klass, NULL);
1793 g_assert (msize == info->native_size);
1794 mono_mb_emit_ldloc (mb, 1);
1795 mono_mb_emit_ldloc (mb, 0);
1796 mono_mb_emit_icon (mb, msize);
1797 mono_mb_emit_byte (mb, CEE_PREFIX1);
1798 mono_mb_emit_byte (mb, CEE_CPBLK);
1800 mono_mb_emit_add_to_local (mb, 0, msize);
1801 mono_mb_emit_add_to_local (mb, 1, msize);
1805 if (klass != mono_defaults.safehandle_class) {
1806 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1807 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1808 mono_type_full_name (&klass->byval_arg));
1809 mono_mb_emit_exception_marshal_directive (mb, msg);
1814 for (i = 0; i < info->num_fields; i++) {
1815 MonoMarshalNative ntype;
1816 MonoMarshalConv conv;
1817 MonoType *ftype = info->fields [i].field->type;
1820 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1822 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1825 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1828 msize = klass->instance_size - info->fields [i].field->offset;
1829 usize = info->native_size - info->fields [i].offset;
1831 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1832 usize = info->fields [i + 1].offset - info->fields [i].offset;
1835 if (klass != mono_defaults.safehandle_class){
1837 * FIXME: Should really check for usize==0 and msize>0, but we apply
1838 * the layout to the managed structure as well.
1841 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1842 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1843 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1844 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1845 "reference field at the same offset as another field.",
1846 mono_type_full_name (&klass->byval_arg));
1851 case MONO_MARSHAL_CONV_NONE: {
1854 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1855 ftype->type == MONO_TYPE_U) {
1856 mono_mb_emit_ldloc (mb, 1);
1857 mono_mb_emit_ldloc (mb, 0);
1858 mono_mb_emit_byte (mb, CEE_LDIND_I);
1859 mono_mb_emit_byte (mb, CEE_STIND_I);
1870 case MONO_TYPE_BOOLEAN:
1873 case MONO_TYPE_CHAR:
1879 mono_mb_emit_ldloc (mb, 1);
1880 mono_mb_emit_ldloc (mb, 0);
1881 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1883 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1884 mono_mb_emit_byte (mb, CEE_STIND_I2);
1886 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1887 mono_mb_emit_byte (mb, CEE_STIND_I1);
1890 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1891 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1894 case MONO_TYPE_VALUETYPE: {
1895 int src_var, dst_var;
1897 if (ftype->data.klass->enumtype) {
1898 ftype = mono_class_enum_basetype (ftype->data.klass);
1902 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1903 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1905 /* save the old src pointer */
1906 mono_mb_emit_ldloc (mb, 0);
1907 mono_mb_emit_stloc (mb, src_var);
1908 /* save the old dst pointer */
1909 mono_mb_emit_ldloc (mb, 1);
1910 mono_mb_emit_stloc (mb, dst_var);
1912 emit_struct_conv (mb, ftype->data.klass, to_object);
1914 /* restore the old src pointer */
1915 mono_mb_emit_ldloc (mb, src_var);
1916 mono_mb_emit_stloc (mb, 0);
1917 /* restore the old dst pointer */
1918 mono_mb_emit_ldloc (mb, dst_var);
1919 mono_mb_emit_stloc (mb, 1);
1922 case MONO_TYPE_OBJECT: {
1923 mono_init_com_types ();
1925 static MonoMethod *variant_clear = NULL;
1926 static MonoMethod *get_object_for_native_variant = NULL;
1929 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1930 if (!get_object_for_native_variant)
1931 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1932 mono_mb_emit_ldloc (mb, 1);
1933 mono_mb_emit_ldloc (mb, 0);
1934 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1935 mono_mb_emit_byte (mb, CEE_STIND_REF);
1937 mono_mb_emit_ldloc (mb, 0);
1938 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1941 static MonoMethod *get_native_variant_for_object = NULL;
1943 if (!get_native_variant_for_object)
1944 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1946 mono_mb_emit_ldloc (mb, 0);
1947 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1948 mono_mb_emit_ldloc (mb, 1);
1949 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1955 g_warning ("marshaling type %02x not implemented", ftype->type);
1956 g_assert_not_reached ();
1961 int src_var, dst_var;
1963 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1964 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1966 /* save the old src pointer */
1967 mono_mb_emit_ldloc (mb, 0);
1968 mono_mb_emit_stloc (mb, src_var);
1969 /* save the old dst pointer */
1970 mono_mb_emit_ldloc (mb, 1);
1971 mono_mb_emit_stloc (mb, dst_var);
1974 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1976 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1978 /* restore the old src pointer */
1979 mono_mb_emit_ldloc (mb, src_var);
1980 mono_mb_emit_stloc (mb, 0);
1981 /* restore the old dst pointer */
1982 mono_mb_emit_ldloc (mb, dst_var);
1983 mono_mb_emit_stloc (mb, 1);
1988 mono_mb_emit_add_to_local (mb, 0, usize);
1989 mono_mb_emit_add_to_local (mb, 1, msize);
1991 mono_mb_emit_add_to_local (mb, 0, msize);
1992 mono_mb_emit_add_to_local (mb, 1, usize);
1998 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2000 emit_struct_conv_full (mb, klass, to_object, -1);
2004 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2006 /* Call DestroyStructure */
2007 /* FIXME: Only do this if needed */
2008 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2009 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2010 mono_mb_emit_ldloc (mb, struct_var);
2011 mono_mb_emit_icall (mb, mono_struct_delete_old);
2015 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2019 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2020 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2021 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2023 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2024 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2026 mono_mb_emit_icall (mb, checkpoint_func);
2028 mono_mb_patch_branch (mb, pos_noabort);
2032 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2034 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2037 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2041 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2043 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2047 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2049 emit_thread_interrupt_checkpoint (mb);
2052 static MonoAsyncResult *
2053 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2055 MonoMethodMessage *msg;
2056 MonoDelegate *async_callback;
2057 MonoMulticastDelegate *mcast_delegate;
2061 MonoMethod *method = NULL, *method2 = NULL;
2063 g_assert (delegate);
2064 mcast_delegate = (MonoMulticastDelegate *) delegate;
2065 if (mcast_delegate->prev != NULL)
2066 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2068 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2070 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2071 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2073 /* If the target is a proxy, make a direct call. Is proxy's work
2074 // to make the call asynchronous.
2076 MonoAsyncResult *ares;
2078 MonoArray *out_args;
2079 method = delegate->method;
2081 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2082 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2083 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2084 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2085 MONO_OBJECT_SETREF (msg, async_result, ares);
2086 msg->call_type = CallType_BeginInvoke;
2089 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2091 mono_raise_exception ((MonoException *) exc);
2096 klass = delegate->object.vtable->klass;
2098 method = mono_get_delegate_invoke (klass);
2099 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2102 g_assert (method != NULL);
2104 im = mono_get_delegate_invoke (method->klass);
2105 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2107 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2111 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2113 int i, params_var, tmp_var;
2115 /* allocate local (pointer) *params[] */
2116 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2117 /* allocate local (pointer) tmp */
2118 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2120 /* alloate space on stack to store an array of pointers to the arguments */
2121 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2122 mono_mb_emit_byte (mb, CEE_PREFIX1);
2123 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2124 mono_mb_emit_stloc (mb, params_var);
2127 mono_mb_emit_ldloc (mb, params_var);
2128 mono_mb_emit_stloc (mb, tmp_var);
2130 if (save_this && sig->hasthis) {
2131 mono_mb_emit_ldloc (mb, tmp_var);
2132 mono_mb_emit_ldarg_addr (mb, 0);
2133 mono_mb_emit_byte (mb, CEE_STIND_I);
2134 /* tmp = tmp + sizeof (gpointer) */
2135 if (sig->param_count)
2136 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2140 for (i = 0; i < sig->param_count; i++) {
2141 mono_mb_emit_ldloc (mb, tmp_var);
2142 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2143 mono_mb_emit_byte (mb, CEE_STIND_I);
2144 /* tmp = tmp + sizeof (gpointer) */
2145 if (i < (sig->param_count - 1))
2146 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2153 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2157 GString *res = g_string_new ("");
2160 g_string_append (res, prefix);
2161 g_string_append_c (res, '_');
2164 mono_type_get_desc (res, sig->ret, FALSE);
2167 g_string_append (res, "__this__");
2169 for (i = 0; i < sig->param_count; ++i) {
2170 g_string_append_c (res, '_');
2171 mono_type_get_desc (res, sig->params [i], FALSE);
2174 g_string_free (res, FALSE);
2179 * mono_marshal_get_string_encoding:
2181 * Return the string encoding which should be used for a given parameter.
2183 static MonoMarshalNative
2184 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2186 /* First try the parameter marshal info */
2188 if (spec->native == MONO_NATIVE_LPARRAY) {
2189 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2190 return spec->data.array_data.elem_type;
2193 return spec->native;
2197 return MONO_NATIVE_LPSTR;
2199 /* Then try the method level marshal info */
2200 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2201 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2202 return MONO_NATIVE_LPSTR;
2203 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2204 return MONO_NATIVE_LPWSTR;
2205 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2207 return MONO_NATIVE_LPWSTR;
2209 return MONO_NATIVE_LPSTR;
2212 return MONO_NATIVE_LPSTR;
2216 static MonoMarshalConv
2217 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2219 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2222 case MONO_NATIVE_LPWSTR:
2223 return MONO_MARSHAL_CONV_STR_LPWSTR;
2224 case MONO_NATIVE_LPSTR:
2225 case MONO_NATIVE_VBBYREFSTR:
2226 return MONO_MARSHAL_CONV_STR_LPSTR;
2227 case MONO_NATIVE_LPTSTR:
2228 return MONO_MARSHAL_CONV_STR_LPTSTR;
2229 case MONO_NATIVE_BSTR:
2230 return MONO_MARSHAL_CONV_STR_BSTR;
2236 static MonoMarshalConv
2237 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2239 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2242 case MONO_NATIVE_LPWSTR:
2243 return MONO_MARSHAL_CONV_SB_LPWSTR;
2245 case MONO_NATIVE_LPSTR:
2246 return MONO_MARSHAL_CONV_SB_LPSTR;
2248 case MONO_NATIVE_LPTSTR:
2249 return MONO_MARSHAL_CONV_SB_LPTSTR;
2256 static MonoMarshalConv
2257 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2259 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2264 case MONO_NATIVE_LPWSTR:
2266 return MONO_MARSHAL_CONV_LPWSTR_STR;
2267 case MONO_NATIVE_LPSTR:
2268 case MONO_NATIVE_VBBYREFSTR:
2269 return MONO_MARSHAL_CONV_LPSTR_STR;
2270 case MONO_NATIVE_LPTSTR:
2271 return MONO_MARSHAL_CONV_LPTSTR_STR;
2272 case MONO_NATIVE_BSTR:
2273 return MONO_MARSHAL_CONV_BSTR_STR;
2279 static MonoMarshalConv
2280 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2282 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2287 case MONO_NATIVE_LPWSTR:
2289 * mono_string_builder_to_utf16 does not allocate a
2290 * new buffer, so no need to free it.
2293 return MONO_MARSHAL_CONV_LPWSTR_SB;
2294 case MONO_NATIVE_LPSTR:
2295 return MONO_MARSHAL_CONV_LPSTR_SB;
2297 case MONO_NATIVE_LPTSTR:
2298 return MONO_MARSHAL_CONV_LPTSTR_SB;
2306 * Return whenever a field of a native structure or an array member needs to
2310 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2312 MonoMarshalNative encoding;
2313 MonoMarshalConv conv;
2316 case MONO_TYPE_VALUETYPE:
2317 /* FIXME: Optimize this */
2319 case MONO_TYPE_OBJECT:
2320 case MONO_TYPE_CLASS:
2321 if (t->data.klass == mono_defaults.stringbuilder_class) {
2323 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2327 case MONO_TYPE_STRING:
2328 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2329 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2336 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2339 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2342 mono_marshal_lock ();
2345 g_hash_table_new (hash_func, equal_func);
2346 mono_memory_barrier ();
2349 mono_marshal_unlock ();
2355 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
2358 mono_marshal_lock ();
2361 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
2362 mono_memory_barrier ();
2365 mono_marshal_unlock ();
2371 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2373 return get_cache (var, hash_func, equal_func);
2377 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2381 mono_marshal_lock ();
2382 res = g_hash_table_lookup (cache, key);
2383 mono_marshal_unlock ();
2387 /* Create the method from the builder and place it in the cache */
2389 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2390 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2395 mono_marshal_lock ();
2396 res = g_hash_table_lookup (cache, key);
2397 mono_marshal_unlock ();
2400 newm = mono_mb_create_method (mb, sig, max_stack);
2401 mono_marshal_lock ();
2402 res = g_hash_table_lookup (cache, key);
2405 g_hash_table_insert (cache, key, res);
2406 mono_marshal_set_wrapper_info (res, key);
2407 mono_marshal_unlock ();
2409 mono_marshal_unlock ();
2410 mono_free_method (newm);
2418 static inline MonoMethod*
2419 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2421 MonoMethod *res = NULL;
2422 MonoRemotingMethods *wrps;
2424 mono_marshal_lock ();
2425 if (method->klass->image->remoting_invoke_cache)
2426 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2431 switch (wrapper_type) {
2432 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2433 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2434 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2435 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2439 /* it is important to do the unlock after the load from wrps, since in
2440 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2441 * to take the loader lock and some other thread may set the fields.
2443 mono_marshal_unlock ();
2447 /* Create the method from the builder and place it in the cache */
2448 static inline MonoMethod*
2449 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2450 MonoMethodSignature *sig, int max_stack)
2452 MonoMethod **res = NULL;
2453 MonoRemotingMethods *wrps;
2454 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
2456 mono_marshal_lock ();
2457 wrps = g_hash_table_lookup (cache, key);
2459 wrps = g_new0 (MonoRemotingMethods, 1);
2460 g_hash_table_insert (cache, key, wrps);
2463 switch (mb->method->wrapper_type) {
2464 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2465 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2466 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2467 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2468 default: g_assert_not_reached (); break;
2470 mono_marshal_unlock ();
2474 newm = mono_mb_create_method (mb, sig, max_stack);
2476 mono_marshal_lock ();
2479 mono_marshal_set_wrapper_info (*res, key);
2480 mono_marshal_unlock ();
2482 mono_marshal_unlock ();
2483 mono_free_method (newm);
2491 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2494 int wrapper_type = wrapper->wrapper_type;
2496 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2499 switch (wrapper_type) {
2500 case MONO_WRAPPER_REMOTING_INVOKE:
2501 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2502 case MONO_WRAPPER_XDOMAIN_INVOKE:
2503 case MONO_WRAPPER_SYNCHRONIZED:
2504 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2505 case MONO_WRAPPER_RUNTIME_INVOKE:
2506 res = mono_method_get_wrapper_data (wrapper, 1);
2516 * mono_marshal_get_wrapper_info:
2518 * Retrieve the pointer stored by mono_marshal_set_wrapper_info.
2521 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2523 g_assert (wrapper->wrapper_type);
2525 return mono_method_get_wrapper_data (wrapper, 1);
2529 * mono_marshal_set_wrapper_info:
2531 * Store an arbitrary pointer inside the wrapper which is retrievable by
2532 * mono_marshal_get_wrapper_info. The format of the data depends on the type of the
2533 * wrapper (method->wrapper_type).
2536 mono_marshal_set_wrapper_info (MonoMethod *method, gpointer data)
2540 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2543 datav = ((MonoMethodWrapper *)method)->method_data;
2548 * get_wrapper_target_class:
2550 * Return the class where a wrapper method should be placed.
2553 get_wrapper_target_class (MonoImage *image)
2559 * - can't put all wrappers into an mscorlib class, because they reference
2560 * metadata (signature) so they should be put into the same image as the
2561 * method they wrap, so they are unloaded together.
2562 * - putting them into a class with a type initalizer could cause the
2563 * initializer to be executed which can be a problem if the wrappers are
2565 * - putting them into an inflated class can cause problems if the the
2566 * class is deleted because it references an image which is unloaded.
2567 * To avoid these problems, we put the wrappers into the <Module> class of
2571 klass = ((MonoDynamicImage*)image)->wrappers_type;
2573 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
2580 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2582 MonoMethodSignature *sig;
2583 MonoMethodBuilder *mb;
2589 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2590 !strcmp (method->name, "BeginInvoke"));
2592 sig = mono_signature_no_pinvoke (method);
2594 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2595 (GHashFunc)mono_signature_hash,
2596 (GCompareFunc)mono_metadata_signature_equal);
2597 if ((res = mono_marshal_find_in_cache (cache, sig)))
2600 g_assert (sig->hasthis);
2602 name = mono_signature_to_name (sig, "begin_invoke");
2603 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2606 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2608 mono_mb_emit_ldarg (mb, 0);
2609 mono_mb_emit_ldloc (mb, params_var);
2610 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2611 mono_mb_emit_byte (mb, CEE_RET);
2613 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2619 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2621 MonoDomain *domain = mono_domain_get ();
2622 MonoAsyncResult *ares;
2623 MonoMethod *method = NULL;
2624 MonoMethodSignature *sig;
2625 MonoMethodMessage *msg;
2626 MonoObject *res, *exc;
2627 MonoArray *out_args;
2630 g_assert (delegate);
2632 if (!delegate->method_info) {
2633 g_assert (delegate->method);
2634 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2637 if (!delegate->method_info || !delegate->method_info->method)
2638 g_assert_not_reached ();
2640 klass = delegate->object.vtable->klass;
2642 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2643 g_assert (method != NULL);
2645 sig = mono_signature_no_pinvoke (method);
2647 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2649 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2651 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."));
2655 if (ares->async_delegate != (MonoObject*)delegate) {
2656 mono_raise_exception (mono_get_exception_invalid_operation (
2657 "The IAsyncResult object provided does not match this delegate."));
2661 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2662 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2663 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2664 mono_message_init (domain, msg, delegate->method_info, NULL);
2665 msg->call_type = CallType_EndInvoke;
2666 MONO_OBJECT_SETREF (msg, async_result, ares);
2667 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2669 res = mono_thread_pool_finish (ares, &out_args, &exc);
2673 if (((MonoException*)exc)->stack_trace) {
2674 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2676 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2678 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2681 mono_raise_exception ((MonoException*)exc);
2684 mono_method_return_message_restore (method, params, out_args);
2689 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2691 MonoType *t = mono_type_get_underlying_type (return_type);
2693 if (return_type->byref)
2694 return_type = &mono_defaults.int_class->byval_arg;
2697 case MONO_TYPE_VOID:
2698 g_assert_not_reached ();
2701 case MONO_TYPE_STRING:
2702 case MONO_TYPE_CLASS:
2703 case MONO_TYPE_OBJECT:
2704 case MONO_TYPE_ARRAY:
2705 case MONO_TYPE_SZARRAY:
2709 case MONO_TYPE_BOOLEAN:
2712 case MONO_TYPE_CHAR:
2722 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2723 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2725 case MONO_TYPE_GENERICINST:
2726 if (!mono_type_generic_inst_is_valuetype (t))
2729 case MONO_TYPE_VALUETYPE: {
2730 MonoClass *klass = mono_class_from_mono_type (return_type);
2731 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2732 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2736 g_warning ("type 0x%x not handled", return_type->type);
2737 g_assert_not_reached ();
2740 mono_mb_emit_byte (mb, CEE_RET);
2744 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2746 MonoMethodSignature *sig;
2747 MonoMethodBuilder *mb;
2753 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2754 !strcmp (method->name, "EndInvoke"));
2756 sig = mono_signature_no_pinvoke (method);
2758 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2759 (GHashFunc)mono_signature_hash,
2760 (GCompareFunc)mono_metadata_signature_equal);
2761 if ((res = mono_marshal_find_in_cache (cache, sig)))
2764 g_assert (sig->hasthis);
2766 name = mono_signature_to_name (sig, "end_invoke");
2767 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2770 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2772 mono_mb_emit_ldarg (mb, 0);
2773 mono_mb_emit_ldloc (mb, params_var);
2774 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2776 if (sig->ret->type == MONO_TYPE_VOID) {
2777 mono_mb_emit_byte (mb, CEE_POP);
2778 mono_mb_emit_byte (mb, CEE_RET);
2780 mono_mb_emit_restore_result (mb, sig->ret);
2782 res = mono_mb_create_and_cache (cache, sig,
2783 mb, sig, sig->param_count + 16);
2790 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2792 MonoMethodMessage *msg;
2793 MonoTransparentProxy *this;
2794 MonoObject *res, *exc;
2795 MonoArray *out_args;
2797 this = *((MonoTransparentProxy **)params [0]);
2800 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2802 /* skip the this pointer */
2805 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2808 MonoMethodSignature *sig = mono_method_signature (method);
2809 int count = sig->param_count;
2810 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2812 for (i=0; i<count; i++) {
2813 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2814 if (class->valuetype) {
2815 if (sig->params [i]->byref) {
2816 mparams[i] = *((gpointer *)params [i]);
2818 /* runtime_invoke expects a boxed instance */
2819 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2820 mparams[i] = mono_nullable_box (params [i], class);
2822 mparams[i] = params [i];
2825 mparams[i] = *((gpointer**)params [i]);
2829 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2832 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2834 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2837 mono_raise_exception ((MonoException *)exc);
2839 mono_method_return_message_restore (method, params, out_args);
2845 mono_marshal_get_remoting_invoke (MonoMethod *method)
2847 MonoMethodSignature *sig;
2848 MonoMethodBuilder *mb;
2854 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2857 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2858 if (method->klass->is_com_object || method->klass == mono_defaults.com_object_class) {
2859 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
2860 g_assert (vtable); /*FIXME do proper error handling*/
2862 if (!vtable->remote) {
2864 return mono_cominterop_get_invoke (method);
2866 g_assert_not_reached ();
2871 sig = mono_signature_no_pinvoke (method);
2873 /* we cant remote methods without this pointer */
2877 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2880 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2881 mb->method->save_lmf = 1;
2883 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2885 mono_mb_emit_ptr (mb, method);
2886 mono_mb_emit_ldloc (mb, params_var);
2887 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2888 emit_thread_interrupt_checkpoint (mb);
2890 if (sig->ret->type == MONO_TYPE_VOID) {
2891 mono_mb_emit_byte (mb, CEE_POP);
2892 mono_mb_emit_byte (mb, CEE_RET);
2894 mono_mb_emit_restore_result (mb, sig->ret);
2897 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2903 /* mono_get_xdomain_marshal_type()
2904 * Returns the kind of marshalling that a type needs for cross domain calls.
2906 static MonoXDomainMarshalType
2907 mono_get_xdomain_marshal_type (MonoType *t)
2910 case MONO_TYPE_VOID:
2911 g_assert_not_reached ();
2915 case MONO_TYPE_BOOLEAN:
2918 case MONO_TYPE_CHAR:
2925 return MONO_MARSHAL_NONE;
2926 case MONO_TYPE_STRING:
2927 return MONO_MARSHAL_COPY;
2928 case MONO_TYPE_ARRAY:
2929 case MONO_TYPE_SZARRAY: {
2930 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2931 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2932 return MONO_MARSHAL_COPY;
2937 return MONO_MARSHAL_SERIALIZE;
2941 /* mono_marshal_xdomain_copy_value
2942 * Makes a copy of "val" suitable for the current domain.
2945 mono_marshal_xdomain_copy_value (MonoObject *val)
2948 if (val == NULL) return NULL;
2950 domain = mono_domain_get ();
2952 switch (mono_object_class (val)->byval_arg.type) {
2953 case MONO_TYPE_VOID:
2954 g_assert_not_reached ();
2958 case MONO_TYPE_BOOLEAN:
2961 case MONO_TYPE_CHAR:
2967 case MONO_TYPE_R8: {
2968 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2970 case MONO_TYPE_STRING: {
2971 MonoString *str = (MonoString *) val;
2972 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2974 case MONO_TYPE_ARRAY:
2975 case MONO_TYPE_SZARRAY: {
2977 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2978 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2979 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2980 if (mt == MONO_MARSHAL_COPY) {
2981 int i, len = mono_array_length (acopy);
2982 for (i = 0; i < len; i++) {
2983 MonoObject *item = mono_array_get (acopy, gpointer, i);
2984 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2987 return (MonoObject *) acopy;
2991 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2992 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2993 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2994 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2995 newsb->length = oldsb->length;
2996 newsb->max_capacity = (gint32)0x7fffffff;
2997 return (MonoObject *) newsb;
3002 /* mono_marshal_xdomain_copy_out_value()
3003 * Copies the contents of the src instance into the dst instance. src and dst
3004 * must have the same type, and if they are arrays, the same size.
3007 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3009 if (src == NULL || dst == NULL) return;
3011 g_assert (mono_object_class (src) == mono_object_class (dst));
3013 switch (mono_object_class (src)->byval_arg.type) {
3014 case MONO_TYPE_ARRAY:
3015 case MONO_TYPE_SZARRAY: {
3016 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3017 if (mt == MONO_MARSHAL_SERIALIZE) return;
3018 if (mt == MONO_MARSHAL_COPY) {
3019 int i, len = mono_array_length ((MonoArray *)dst);
3020 for (i = 0; i < len; i++) {
3021 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3022 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3025 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3031 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3032 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3033 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3035 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)));
3036 dst_sb->cached_str = NULL;
3037 dst_sb->length = src_sb->length;
3042 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3044 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3045 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3049 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3051 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3054 /* mono_marshal_supports_fast_xdomain()
3055 * Returns TRUE if the method can use the fast xdomain wrapper.
3058 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3060 return !method->klass->contextbound &&
3061 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3065 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3067 MonoDomain *current_domain = mono_domain_get ();
3068 MonoDomain *domain = mono_domain_get_by_id (id);
3070 if (!domain || !mono_domain_set (domain, FALSE))
3071 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3074 mono_thread_push_appdomain_ref (domain);
3076 mono_thread_pop_appdomain_ref ();
3078 return current_domain->domain_id;
3082 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3084 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3087 /* mono_marshal_emit_load_domain_method ()
3088 * Loads into the stack a pointer to the code of the provided method for
3089 * the current domain.
3092 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3094 /* We need a pointer to the method for the running domain (not the domain
3095 * that compiles the method).
3097 mono_mb_emit_ptr (mb, method);
3098 mono_mb_emit_icall (mb, mono_compile_method);
3101 /* mono_marshal_check_domain_image ()
3102 * Returns TRUE if the image is loaded in the specified
3103 * application domain.
3106 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3111 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3115 mono_domain_assemblies_lock (domain);
3116 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3118 if (ass->image == image)
3121 mono_domain_assemblies_unlock (domain);
3126 /* mono_marshal_get_xappdomain_dispatch ()
3127 * Generates a method that dispatches a method call from another domain into
3128 * the current domain.
3131 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3133 MonoMethodSignature *sig, *csig;
3134 MonoMethodBuilder *mb;
3136 int i, j, param_index, copy_locals_base;
3137 MonoClass *ret_class = NULL;
3138 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3139 MonoExceptionClause *main_clause;
3141 gboolean copy_return;
3143 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3146 sig = mono_method_signature (method);
3147 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3150 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3151 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3152 csig->params [j++] = &byte_array_class->this_arg;
3153 csig->params [j++] = &byte_array_class->this_arg;
3154 for (i = 0; i < sig->param_count; i++) {
3155 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3156 csig->params [j++] = sig->params [i];
3159 csig->ret = sig->ret;
3161 csig->ret = &mono_defaults.void_class->byval_arg;
3163 csig->hasthis = FALSE;
3165 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3166 mb->method->save_lmf = 1;
3170 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3171 if (complex_count > 0)
3172 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3173 if (sig->ret->type != MONO_TYPE_VOID) {
3174 loc_return = mono_mb_add_local (mb, sig->ret);
3175 ret_class = mono_class_from_mono_type (sig->ret);
3180 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
3181 main_clause->try_offset = mono_mb_get_label (mb);
3183 /* Clean the call context */
3185 mono_mb_emit_byte (mb, CEE_LDNULL);
3186 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3187 mono_mb_emit_byte (mb, CEE_POP);
3189 /* Deserialize call data */
3191 mono_mb_emit_ldarg (mb, 1);
3192 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3193 mono_mb_emit_byte (mb, CEE_DUP);
3194 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3196 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3197 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3199 if (complex_count > 0)
3200 mono_mb_emit_stloc (mb, loc_array);
3202 mono_mb_emit_byte (mb, CEE_POP);
3204 mono_mb_patch_short_branch (mb, pos);
3206 /* Get the target object */
3208 mono_mb_emit_ldarg (mb, 0);
3209 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3211 /* Load the arguments */
3213 copy_locals_base = mb->locals;
3214 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3216 for (i = 0; i < sig->param_count; i++) {
3217 MonoType *pt = sig->params [i];
3218 MonoClass *pclass = mono_class_from_mono_type (pt);
3219 switch (marshal_types [i]) {
3220 case MONO_MARSHAL_SERIALIZE: {
3221 /* take the value from the serialized array */
3222 mono_mb_emit_ldloc (mb, loc_array);
3223 mono_mb_emit_icon (mb, j++);
3225 if (pclass->valuetype) {
3226 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3227 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3229 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3232 if (pclass->valuetype) {
3233 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3234 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3235 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3237 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3238 if (pclass != mono_defaults.object_class) {
3239 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3245 case MONO_MARSHAL_COPY_OUT: {
3246 /* Keep a local copy of the value since we need to copy it back after the call */
3247 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3248 mono_mb_emit_ldarg (mb, param_index++);
3249 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3250 mono_mb_emit_byte (mb, CEE_DUP);
3251 mono_mb_emit_stloc (mb, copy_local);
3254 case MONO_MARSHAL_COPY: {
3255 mono_mb_emit_ldarg (mb, param_index);
3257 mono_mb_emit_byte (mb, CEE_DUP);
3258 mono_mb_emit_byte (mb, CEE_DUP);
3259 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3260 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3261 mono_mb_emit_byte (mb, CEE_STIND_REF);
3263 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3268 case MONO_MARSHAL_NONE:
3269 mono_mb_emit_ldarg (mb, param_index++);
3274 /* Make the call to the real object */
3276 emit_thread_force_interrupt_checkpoint (mb);
3278 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3280 if (sig->ret->type != MONO_TYPE_VOID)
3281 mono_mb_emit_stloc (mb, loc_return);
3283 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3287 for (i = 0; i < sig->param_count; i++) {
3288 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3289 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3290 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3291 mono_mb_emit_ldarg (mb, param_index);
3292 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3297 /* Serialize the return values */
3299 if (complex_out_count > 0) {
3300 /* Reset parameters in the array that don't need to be serialized back */
3302 for (i = 0; i < sig->param_count; i++) {
3303 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3304 if (!sig->params [i]->byref) {
3305 mono_mb_emit_ldloc (mb, loc_array);
3306 mono_mb_emit_icon (mb, j);
3307 mono_mb_emit_byte (mb, CEE_LDNULL);
3308 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3313 /* Add the return value to the array */
3315 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3316 mono_mb_emit_ldloc (mb, loc_array);
3317 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3318 mono_mb_emit_ldloc (mb, loc_return);
3320 g_assert (ret_class); /*FIXME properly fail here*/
3321 if (ret_class->valuetype) {
3322 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3324 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3329 mono_mb_emit_ldarg (mb, 1);
3330 mono_mb_emit_ldloc (mb, loc_array);
3331 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3332 mono_mb_emit_byte (mb, CEE_STIND_REF);
3333 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3334 mono_mb_emit_ldarg (mb, 1);
3335 mono_mb_emit_ldloc (mb, loc_return);
3336 if (ret_class->valuetype) {
3337 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3339 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3340 mono_mb_emit_byte (mb, CEE_STIND_REF);
3342 mono_mb_emit_ldarg (mb, 1);
3343 mono_mb_emit_byte (mb, CEE_LDNULL);
3344 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3345 mono_mb_emit_byte (mb, CEE_STIND_REF);
3348 mono_mb_emit_ldarg (mb, 2);
3349 mono_mb_emit_byte (mb, CEE_LDNULL);
3350 mono_mb_emit_byte (mb, CEE_STIND_REF);
3351 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3353 /* Main exception catch */
3354 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3355 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3356 main_clause->data.catch_class = mono_defaults.object_class;
3359 main_clause->handler_offset = mono_mb_get_label (mb);
3360 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3361 mono_mb_emit_stloc (mb, loc_serialized_exc);
3362 mono_mb_emit_ldarg (mb, 2);
3363 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3364 mono_mb_emit_byte (mb, CEE_STIND_REF);
3365 mono_mb_emit_branch (mb, CEE_LEAVE);
3366 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3369 mono_mb_patch_branch (mb, pos_leave);
3372 mono_mb_emit_ldloc (mb, loc_return);
3374 mono_mb_emit_byte (mb, CEE_RET);
3376 mono_mb_set_clauses (mb, 1, main_clause);
3378 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3384 /* mono_marshal_get_xappdomain_invoke ()
3385 * Generates a fast remoting wrapper for cross app domain calls.
3388 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3390 MonoMethodSignature *sig;
3391 MonoMethodBuilder *mb;
3393 int i, j, complex_count, complex_out_count, copy_locals_base;
3395 MonoClass *ret_class = NULL;
3396 MonoMethod *xdomain_method;
3397 int ret_marshal_type = MONO_MARSHAL_NONE;
3398 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3399 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3400 int pos, pos_dispatch, pos_noex;
3401 gboolean copy_return = FALSE;
3405 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3408 /* we cant remote methods without this pointer */
3409 if (!mono_method_signature (method)->hasthis)
3412 if (!mono_marshal_supports_fast_xdomain (method))
3413 return mono_marshal_get_remoting_invoke (method);
3415 mono_remoting_marshal_init ();
3417 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3420 sig = mono_signature_no_pinvoke (method);
3422 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3423 mb->method->save_lmf = 1;
3425 /* Count the number of parameters that need to be serialized */
3427 marshal_types = alloca (sizeof (int) * sig->param_count);
3428 complex_count = complex_out_count = 0;
3429 for (i = 0; i < sig->param_count; i++) {
3430 MonoType *ptype = sig->params[i];
3431 int mt = mono_get_xdomain_marshal_type (ptype);
3433 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3434 * the copy will be made by reusing the original object instance
3436 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3437 mt = MONO_MARSHAL_COPY_OUT;
3438 else if (mt == MONO_MARSHAL_SERIALIZE) {
3440 if (ptype->byref) complex_out_count++;
3442 marshal_types [i] = mt;
3445 if (sig->ret->type != MONO_TYPE_VOID) {
3446 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3447 ret_class = mono_class_from_mono_type (sig->ret);
3448 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3453 if (complex_count > 0)
3454 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3455 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3456 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3458 loc_return = mono_mb_add_local (mb, sig->ret);
3459 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3460 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3461 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3462 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3464 /* Save thread domain data */
3466 mono_mb_emit_icall (mb, mono_context_get);
3467 mono_mb_emit_byte (mb, CEE_DUP);
3468 mono_mb_emit_stloc (mb, loc_context);
3470 /* If the thread is not running in the default context, it needs to go
3471 * through the whole remoting sink, since the context is going to change
3473 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3474 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3476 /* Another case in which the fast path can't be used: when the target domain
3477 * has a different image for the same assembly.
3480 /* Get the target domain id */
3482 mono_mb_emit_ldarg (mb, 0);
3483 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3484 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3485 mono_mb_emit_byte (mb, CEE_DUP);
3486 mono_mb_emit_stloc (mb, loc_real_proxy);
3488 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3489 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3490 mono_mb_emit_stloc (mb, loc_domainid);
3492 /* Check if the target domain has the same image for the required assembly */
3494 mono_mb_emit_ldloc (mb, loc_domainid);
3495 mono_mb_emit_ptr (mb, method->klass->image);
3496 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3497 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3499 /* Use the whole remoting sink to dispatch this message */
3501 mono_mb_patch_short_branch (mb, pos);
3503 mono_mb_emit_ldarg (mb, 0);
3504 for (i = 0; i < sig->param_count; i++)
3505 mono_mb_emit_ldarg (mb, i + 1);
3507 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3508 mono_mb_emit_byte (mb, CEE_RET);
3509 mono_mb_patch_short_branch (mb, pos_dispatch);
3511 /* Create the array that will hold the parameters to be serialized */
3513 if (complex_count > 0) {
3514 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 */
3515 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3518 for (i = 0; i < sig->param_count; i++) {
3520 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3521 pclass = mono_class_from_mono_type (sig->params[i]);
3522 mono_mb_emit_byte (mb, CEE_DUP);
3523 mono_mb_emit_icon (mb, j);
3524 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3525 if (sig->params[i]->byref) {
3526 if (pclass->valuetype)
3527 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3529 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3531 if (pclass->valuetype)
3532 mono_mb_emit_op (mb, CEE_BOX, pclass);
3533 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3536 mono_mb_emit_stloc (mb, loc_array);
3538 /* Serialize parameters */
3540 mono_mb_emit_ldloc (mb, loc_array);
3541 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3542 mono_mb_emit_stloc (mb, loc_serialized_data);
3544 mono_mb_emit_byte (mb, CEE_LDNULL);
3545 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3546 mono_mb_emit_stloc (mb, loc_serialized_data);
3551 mono_mb_emit_ldloc (mb, loc_domainid);
3552 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3553 mono_marshal_emit_switch_domain (mb);
3554 mono_mb_emit_stloc (mb, loc_old_domainid);
3556 /* Load the arguments */
3558 mono_mb_emit_ldloc (mb, loc_real_proxy);
3559 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3560 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3562 copy_locals_base = mb->locals;
3563 for (i = 0; i < sig->param_count; i++) {
3564 switch (marshal_types [i]) {
3565 case MONO_MARSHAL_SERIALIZE:
3567 case MONO_MARSHAL_COPY: {
3568 mono_mb_emit_ldarg (mb, i+1);
3569 if (sig->params [i]->byref) {
3570 /* make a local copy of the byref parameter. The real parameter
3571 * will be updated after the xdomain call
3573 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3574 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3575 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3576 mono_mb_emit_stloc (mb, copy_local);
3577 mono_mb_emit_ldloc_addr (mb, copy_local);
3581 case MONO_MARSHAL_COPY_OUT:
3582 case MONO_MARSHAL_NONE:
3583 mono_mb_emit_ldarg (mb, i+1);
3588 /* Make the call to the invoke wrapper in the target domain */
3590 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3591 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3592 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3595 mono_mb_emit_stloc (mb, loc_return);
3599 mono_mb_emit_ldloc (mb, loc_old_domainid);
3600 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3601 mono_marshal_emit_switch_domain (mb);
3602 mono_mb_emit_byte (mb, CEE_POP);
3604 /* Restore thread domain data */
3606 mono_mb_emit_ldloc (mb, loc_context);
3607 mono_mb_emit_icall (mb, mono_context_set);
3609 /* if (loc_serialized_exc != null) ... */
3611 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3612 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3614 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3615 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3616 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3617 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3618 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3619 mono_mb_emit_byte (mb, CEE_THROW);
3620 mono_mb_patch_short_branch (mb, pos_noex);
3622 /* copy back non-serialized output parameters */
3625 for (i = 0; i < sig->param_count; i++) {
3626 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3627 mono_mb_emit_ldarg (mb, i + 1);
3628 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3629 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3630 mono_mb_emit_byte (mb, CEE_STIND_REF);
3633 /* Deserialize out parameters */
3635 if (complex_out_count > 0) {
3636 mono_mb_emit_ldloc (mb, loc_serialized_data);
3637 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3638 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3639 mono_mb_emit_stloc (mb, loc_array);
3641 /* Copy back output parameters and return type */
3644 for (i = 0; i < sig->param_count; i++) {
3645 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3646 if (sig->params[i]->byref) {
3647 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3648 mono_mb_emit_ldarg (mb, i + 1);
3649 mono_mb_emit_ldloc (mb, loc_array);
3650 mono_mb_emit_icon (mb, j);
3651 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3652 if (pclass->valuetype) {
3653 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3654 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3655 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3657 if (pclass != mono_defaults.object_class)
3658 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3659 mono_mb_emit_byte (mb, CEE_STIND_REF);
3665 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3666 mono_mb_emit_ldloc (mb, loc_array);
3667 mono_mb_emit_icon (mb, complex_count);
3668 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3669 if (ret_class->valuetype) {
3670 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3671 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3674 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3675 mono_mb_emit_ldloc (mb, loc_serialized_data);
3676 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3677 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3678 if (ret_class->valuetype) {
3679 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3680 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3681 } else if (ret_class != mono_defaults.object_class) {
3682 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3685 mono_mb_emit_ldloc (mb, loc_serialized_data);
3686 mono_mb_emit_byte (mb, CEE_DUP);
3687 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3688 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3690 mono_mb_patch_short_branch (mb, pos);
3691 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3692 mono_mb_emit_byte (mb, CEE_POP);
3696 mono_mb_emit_ldloc (mb, loc_return);
3697 if (ret_marshal_type == MONO_MARSHAL_COPY)
3698 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3701 mono_mb_emit_byte (mb, CEE_RET);
3703 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3710 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3712 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3713 return mono_marshal_get_xappdomain_invoke (method);
3714 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3716 return mono_cominterop_get_invoke (method);
3718 g_assert_not_reached ();
3721 return mono_marshal_get_remoting_invoke (method);
3727 G_GNUC_UNUSED static gpointer
3728 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3730 if (rp->target_domain_id != -1)
3731 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3733 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3737 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3739 MonoMethodSignature *sig;
3740 MonoMethodBuilder *mb;
3741 MonoMethod *res, *native;
3742 int i, pos, pos_rem;
3746 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3749 /* we cant remote methods without this pointer */
3750 g_assert (mono_method_signature (method)->hasthis);
3752 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3755 sig = mono_signature_no_pinvoke (method);
3757 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3759 for (i = 0; i <= sig->param_count; i++)
3760 mono_mb_emit_ldarg (mb, i);
3762 mono_mb_emit_ldarg (mb, 0);
3763 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3765 if (mono_marshal_supports_fast_xdomain (method)) {
3766 mono_mb_emit_ldarg (mb, 0);
3767 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3769 /* wrapper for cross app domain calls */
3770 native = mono_marshal_get_xappdomain_invoke (method);
3771 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3772 mono_mb_emit_byte (mb, CEE_RET);
3774 mono_mb_patch_branch (mb, pos_rem);
3776 /* wrapper for normal remote calls */
3777 native = mono_marshal_get_remoting_invoke (method);
3778 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3779 mono_mb_emit_byte (mb, CEE_RET);
3782 mono_mb_patch_branch (mb, pos);
3783 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3784 mono_mb_emit_byte (mb, CEE_RET);
3786 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3794 MonoMethodSignature *sig;
3796 } SignatureMethodPair;
3799 signature_method_pair_hash (gconstpointer data)
3801 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3803 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3807 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3809 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3813 signature_method_pair_matches_method (gpointer key, gpointer value, gpointer user_data)
3815 SignatureMethodPair *pair = (SignatureMethodPair*)key;
3816 MonoMethod *method = (MonoMethod*)user_data;
3818 return pair->method == method;
3822 free_signature_method_pair (SignatureMethodPair *pair)
3828 * the returned method invokes all methods in a multicast delegate.
3831 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3833 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3835 MonoMethodBuilder *mb;
3836 MonoMethod *res, *newm;
3838 SignatureMethodPair key;
3839 SignatureMethodPair *new_key;
3840 int local_prev, local_target;
3843 MonoMethod *target_method = NULL;
3844 MonoClass *target_class = NULL;
3845 gboolean callvirt = FALSE;
3846 gboolean closed_over_null = FALSE;
3847 gboolean static_method_with_first_arg_bound = FALSE;
3850 * If the delegate target is null, and the target method is not static, a virtual
3851 * call is made to that method with the first delegate argument as this. This is
3852 * a non-documented .NET feature.
3854 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3856 target_method = del->method;
3857 if (target_method->is_inflated) {
3858 MonoType *target_type;
3860 g_assert (method->signature->hasthis);
3861 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3862 mono_method_get_context (method));
3863 target_class = mono_class_from_mono_type (target_type);
3865 target_class = del->method->klass;
3869 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3870 !strcmp (method->name, "Invoke"));
3872 invoke_sig = sig = mono_signature_no_pinvoke (method);
3875 closed_over_null = sig->param_count == mono_method_signature (del->method)->param_count;
3877 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3878 invoke_sig = mono_method_signature (del->method);
3879 target_method = del->method;
3880 static_method_with_first_arg_bound = TRUE;
3883 if (callvirt || static_method_with_first_arg_bound) {
3884 GHashTable **cache_ptr;
3885 if (static_method_with_first_arg_bound)
3886 cache_ptr = &method->klass->image->delegate_bound_static_invoke_cache;
3888 cache_ptr = &method->klass->image->delegate_abstract_invoke_cache;
3890 /* We need to cache the signature+method pair */
3891 mono_marshal_lock ();
3893 *cache_ptr = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3895 key.sig = invoke_sig;
3896 key.method = target_method;
3897 res = g_hash_table_lookup (cache, &key);
3898 mono_marshal_unlock ();
3902 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3903 (GHashFunc)mono_signature_hash,
3904 (GCompareFunc)mono_metadata_signature_equal);
3905 if ((res = mono_marshal_find_in_cache (cache, sig)))
3909 static_sig = signature_dup (method->klass->image, sig);
3910 static_sig->hasthis = 0;
3911 if (!static_method_with_first_arg_bound)
3912 invoke_sig = static_sig;
3914 name = mono_signature_to_name (sig, "invoke");
3915 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3918 /* allocate local 0 (object) */
3919 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3920 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3922 g_assert (sig->hasthis);
3926 * prev.Invoke( args .. );
3927 * return this.<target>( args .. );
3930 /* this wrapper can be used in unmanaged-managed transitions */
3931 emit_thread_interrupt_checkpoint (mb);
3933 /* get this->prev */
3934 mono_mb_emit_ldarg (mb, 0);
3935 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3936 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3937 mono_mb_emit_stloc (mb, local_prev);
3938 mono_mb_emit_ldloc (mb, local_prev);
3940 /* if prev != null */
3941 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3945 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3946 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3948 mono_mb_emit_ldloc (mb, local_prev);
3949 for (i = 0; i < sig->param_count; i++)
3950 mono_mb_emit_ldarg (mb, i + 1);
3951 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3952 if (sig->ret->type != MONO_TYPE_VOID)
3953 mono_mb_emit_byte (mb, CEE_POP);
3955 /* continued or prev == null */
3956 mono_mb_patch_branch (mb, pos0);
3958 /* get this->target */
3959 mono_mb_emit_ldarg (mb, 0);
3960 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3961 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3962 mono_mb_emit_stloc (mb, local_target);
3964 /*static methods with bound first arg can have null target and still be bound*/
3965 if (!static_method_with_first_arg_bound) {
3966 /* if target != null */
3967 mono_mb_emit_ldloc (mb, local_target);
3968 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3970 /* then call this->method_ptr nonstatic */
3973 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3975 mono_mb_emit_ldloc (mb, local_target);
3976 for (i = 0; i < sig->param_count; ++i)
3977 mono_mb_emit_ldarg (mb, i + 1);
3978 mono_mb_emit_ldarg (mb, 0);
3979 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3980 mono_mb_emit_byte (mb, CEE_LDIND_I );
3981 mono_mb_emit_op (mb, CEE_CALLI, sig);
3983 mono_mb_emit_byte (mb, CEE_RET);
3986 /* else [target == null] call this->method_ptr static */
3987 mono_mb_patch_branch (mb, pos0);
3991 if (!closed_over_null) {
3992 mono_mb_emit_ldarg (mb, 1);
3993 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3994 for (i = 1; i < sig->param_count; ++i)
3995 mono_mb_emit_ldarg (mb, i + 1);
3996 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3998 mono_mb_emit_byte (mb, CEE_LDNULL);
3999 for (i = 0; i < sig->param_count; ++i)
4000 mono_mb_emit_ldarg (mb, i + 1);
4001 mono_mb_emit_op (mb, CEE_CALL, target_method);
4004 if (static_method_with_first_arg_bound) {
4005 mono_mb_emit_ldloc (mb, local_target);
4006 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
4007 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
4009 for (i = 0; i < sig->param_count; ++i)
4010 mono_mb_emit_ldarg (mb, i + 1);
4011 mono_mb_emit_ldarg (mb, 0);
4012 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4013 mono_mb_emit_byte (mb, CEE_LDIND_I );
4014 mono_mb_emit_op (mb, CEE_CALLI, invoke_sig);
4017 mono_mb_emit_byte (mb, CEE_RET);
4019 if (static_method_with_first_arg_bound || callvirt) {
4020 // From mono_mb_create_and_cache
4021 mb->skip_visibility = 1;
4022 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4023 /*We perform double checked locking, so must fence before publishing*/
4024 mono_memory_barrier ();
4025 mono_marshal_lock ();
4026 res = g_hash_table_lookup (cache, &key);
4029 new_key = g_new0 (SignatureMethodPair, 1);
4031 if (static_method_with_first_arg_bound)
4032 new_key->sig = signature_dup (del->method->klass->image, key.sig);
4033 g_hash_table_insert (cache, new_key, res);
4034 mono_marshal_set_wrapper_info (res, new_key);
4035 mono_marshal_unlock ();
4037 mono_marshal_unlock ();
4038 mono_free_method (newm);
4041 mb->skip_visibility = 1;
4042 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4050 * signature_dup_add_this:
4052 * Make a copy of @sig, adding an explicit this argument.
4054 static MonoMethodSignature*
4055 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4057 MonoMethodSignature *res;
4060 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4061 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
4062 res->param_count = sig->param_count + 1;
4063 res->hasthis = FALSE;
4064 for (i = sig->param_count - 1; i >= 0; i --)
4065 res->params [i + 1] = sig->params [i];
4066 res->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
4072 MonoMethodSignature *ctor_sig;
4073 MonoMethodSignature *sig;
4076 /* protected by the marshal lock, contains CtorSigPair pointers */
4077 static GSList *strsig_list = NULL;
4079 static MonoMethodSignature *
4080 lookup_string_ctor_signature (MonoMethodSignature *sig)
4082 MonoMethodSignature *callsig;
4086 mono_marshal_lock ();
4088 for (item = strsig_list; item; item = item->next) {
4090 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4091 * because it is lock-free.
4093 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4098 mono_marshal_unlock ();
4102 static MonoMethodSignature *
4103 add_string_ctor_signature (MonoMethod *method)
4105 MonoMethodSignature *callsig;
4108 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4109 callsig->ret = &mono_defaults.string_class->byval_arg;
4110 cs = g_new (CtorSigPair, 1);
4112 cs->ctor_sig = mono_method_signature (method);
4114 mono_marshal_lock ();
4115 strsig_list = g_slist_prepend (strsig_list, cs);
4116 mono_marshal_unlock ();
4121 * mono_marshal_get_string_ctor_signature:
4123 * Return the modified signature used by string ctors (they return the newly created
4126 MonoMethodSignature*
4127 mono_marshal_get_string_ctor_signature (MonoMethod *method)
4129 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
4131 sig = add_string_ctor_signature (method);
4137 get_runtime_invoke_type (MonoType *t, gboolean ret)
4140 /* Can't share this with 'I' as that needs another indirection */
4143 if (MONO_TYPE_IS_REFERENCE (t))
4144 return &mono_defaults.object_class->byval_arg;
4147 /* The result needs to be boxed */
4153 return &mono_defaults.sbyte_class->byval_arg;
4155 return &mono_defaults.int16_class->byval_arg;
4157 return &mono_defaults.int32_class->byval_arg;
4159 return &mono_defaults.int64_class->byval_arg;
4160 case MONO_TYPE_BOOLEAN:
4161 return &mono_defaults.sbyte_class->byval_arg;
4162 case MONO_TYPE_CHAR:
4163 return &mono_defaults.int16_class->byval_arg;
4166 return &mono_defaults.int_class->byval_arg;
4167 case MONO_TYPE_VALUETYPE:
4168 if (t->data.klass->enumtype) {
4169 t = mono_class_enum_basetype (t->data.klass);
4179 * mono_marshal_get_runtime_invoke_sig:
4181 * Return a common signature used for sharing runtime invoke wrappers.
4183 static MonoMethodSignature*
4184 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
4186 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
4189 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
4190 for (i = 0; i < res->param_count; ++i)
4191 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4197 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4199 /* Can't share wrappers which return a vtype since it needs to be boxed */
4200 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))
4203 return mono_metadata_signature_equal (sig1, sig2);
4209 * Emit the call to the wrapper method from a runtime invoke wrapper.
4212 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4213 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4215 gboolean virtual, gboolean need_direct_wrapper)
4217 static MonoString *string_dummy = NULL;
4219 int *tmp_nullable_locals;
4220 gboolean void_ret = FALSE;
4222 /* to make it work with our special string constructors */
4223 if (!string_dummy) {
4224 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy);
4225 string_dummy = mono_string_new_wrapper ("dummy");
4229 g_assert (sig->hasthis);
4230 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4234 if (method->string_ctor) {
4235 mono_mb_emit_ptr (mb, string_dummy);
4237 mono_mb_emit_ldarg (mb, 0);
4241 tmp_nullable_locals = g_new0 (int, sig->param_count);
4243 for (i = 0; i < sig->param_count; i++) {
4244 MonoType *t = sig->params [i];
4247 mono_mb_emit_ldarg (mb, 1);
4249 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4250 mono_mb_emit_byte (mb, CEE_ADD);
4254 mono_mb_emit_byte (mb, CEE_LDIND_I);
4255 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4256 * So to make this work we unbox it to a local variablee and push a reference to that.
4258 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4259 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4261 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4262 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4263 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4268 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4269 type = sig->params [i]->type;
4273 case MONO_TYPE_BOOLEAN:
4277 case MONO_TYPE_CHAR:
4286 mono_mb_emit_byte (mb, CEE_LDIND_I);
4287 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4289 case MONO_TYPE_STRING:
4290 case MONO_TYPE_CLASS:
4291 case MONO_TYPE_ARRAY:
4293 case MONO_TYPE_SZARRAY:
4294 case MONO_TYPE_OBJECT:
4295 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4297 case MONO_TYPE_GENERICINST:
4298 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4299 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4304 case MONO_TYPE_VALUETYPE:
4305 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4306 type = mono_class_enum_basetype (t->data.klass)->type;
4309 mono_mb_emit_byte (mb, CEE_LDIND_I);
4310 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4311 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4312 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4313 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4315 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4319 g_assert_not_reached ();
4324 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4325 } else if (need_direct_wrapper) {
4326 mono_mb_emit_op (mb, CEE_CALL, method);
4328 mono_mb_emit_ldarg (mb, 3);
4329 mono_mb_emit_calli (mb, callsig);
4332 if (sig->ret->byref) {
4334 g_assert_not_reached ();
4337 switch (sig->ret->type) {
4338 case MONO_TYPE_VOID:
4339 if (!method->string_ctor)
4342 case MONO_TYPE_BOOLEAN:
4343 case MONO_TYPE_CHAR:
4356 case MONO_TYPE_VALUETYPE:
4357 case MONO_TYPE_TYPEDBYREF:
4358 case MONO_TYPE_GENERICINST:
4359 /* box value types */
4360 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4362 case MONO_TYPE_STRING:
4363 case MONO_TYPE_CLASS:
4364 case MONO_TYPE_ARRAY:
4365 case MONO_TYPE_SZARRAY:
4366 case MONO_TYPE_OBJECT:
4370 /* The result is an IntPtr */
4371 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4374 g_assert_not_reached ();
4378 mono_mb_emit_stloc (mb, loc_res);
4380 /* Convert back nullable-byref arguments */
4381 for (i = 0; i < sig->param_count; i++) {
4382 MonoType *t = sig->params [i];
4385 * Box the result and put it back into the array, the caller will have
4386 * to obtain it from there.
4388 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4389 mono_mb_emit_ldarg (mb, 1);
4390 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4391 mono_mb_emit_byte (mb, CEE_ADD);
4393 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4394 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4396 mono_mb_emit_byte (mb, CEE_STIND_REF);
4400 g_free (tmp_nullable_locals);
4404 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoClass *target_klass, MonoMethod *method,
4405 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4406 gboolean virtual, gboolean need_direct_wrapper)
4409 MonoExceptionClause *clause;
4410 int loc_res, loc_exc;
4412 /* The wrapper looks like this:
4418 * } catch (Exception e) {
4426 /* allocate local 0 (object) tmp */
4427 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4428 /* allocate local 1 (object) exc */
4429 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4431 /* *exc is assumed to be initialized to NULL by the caller */
4433 mono_mb_emit_byte (mb, CEE_LDARG_2);
4434 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4439 labels [1] = mono_mb_get_label (mb);
4440 emit_thread_force_interrupt_checkpoint (mb);
4441 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4443 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4445 /* Add a try clause around the call */
4446 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4447 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4448 clause->data.catch_class = mono_defaults.exception_class;
4449 clause->try_offset = labels [1];
4450 clause->try_len = mono_mb_get_label (mb) - labels [1];
4452 clause->handler_offset = mono_mb_get_label (mb);
4455 mono_mb_emit_stloc (mb, loc_exc);
4456 mono_mb_emit_byte (mb, CEE_LDARG_2);
4457 mono_mb_emit_ldloc (mb, loc_exc);
4458 mono_mb_emit_byte (mb, CEE_STIND_REF);
4460 mono_mb_emit_branch (mb, CEE_LEAVE);
4462 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4464 mono_mb_set_clauses (mb, 1, clause);
4466 mono_mb_patch_branch (mb, labels [2]);
4467 mono_mb_emit_ldloc (mb, loc_res);
4468 mono_mb_emit_byte (mb, CEE_RET);
4473 mono_mb_patch_branch (mb, labels [0]);
4474 emit_thread_force_interrupt_checkpoint (mb);
4475 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual, need_direct_wrapper);
4477 mono_mb_emit_ldloc (mb, 0);
4478 mono_mb_emit_byte (mb, CEE_RET);
4482 * generates IL code for the runtime invoke function
4483 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4485 * we also catch exceptions if exc != null
4486 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4487 * it means that the compiled code for METHOD does not have to be looked up
4488 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4489 * its METHOD argument.
4492 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
4494 MonoMethodSignature *sig, *csig, *callsig;
4495 MonoMethodBuilder *mb;
4496 GHashTable *cache = NULL;
4497 MonoClass *target_klass;
4498 MonoMethod *res = NULL;
4499 static MonoMethodSignature *cctor_signature = NULL;
4500 static MonoMethodSignature *finalize_signature = NULL;
4502 const char *param_names [16];
4503 gboolean need_direct_wrapper = FALSE;
4507 if (!cctor_signature) {
4508 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4509 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4511 if (!finalize_signature) {
4512 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4513 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4514 finalize_signature->hasthis = 1;
4518 need_direct_wrapper = TRUE;
4521 * Use a separate cache indexed by methods to speed things up and to avoid the
4522 * boundless mempool growth caused by the signature_dup stuff below.
4525 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4527 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4528 res = mono_marshal_find_in_cache (cache, method);
4532 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4533 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4535 * Array Get/Set/Address methods. The JIT implements them using inline code
4536 * so we need to create an invoke wrapper which calls the method directly.
4538 need_direct_wrapper = TRUE;
4541 if (method->string_ctor) {
4542 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4544 callsig = add_string_ctor_signature (method);
4545 /* Can't share this as we push a string as this */
4546 need_direct_wrapper = TRUE;
4548 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4550 * Valuetype methods receive a managed pointer as the this argument.
4551 * Create a new signature to reflect this.
4553 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4554 /* Can't share this as it would be shared with static methods taking an IntPtr argument */
4555 need_direct_wrapper = TRUE;
4557 if (method->dynamic)
4558 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4560 callsig = mono_method_signature (method);
4564 target_klass = get_wrapper_target_class (method->klass->image);
4566 /* Try to share wrappers for non-corlib methods with simple signatures */
4567 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4568 callsig = cctor_signature;
4569 target_klass = mono_defaults.object_class;
4570 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4571 callsig = finalize_signature;
4572 target_klass = mono_defaults.object_class;
4575 if (need_direct_wrapper) {
4576 /* Already searched at the start */
4578 MonoMethodSignature *tmp_sig;
4580 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4582 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4583 (GHashFunc)mono_signature_hash,
4584 (GCompareFunc)runtime_invoke_signature_equal);
4586 /* from mono_marshal_find_in_cache */
4587 mono_marshal_lock ();
4588 res = g_hash_table_lookup (cache, callsig);
4589 mono_marshal_unlock ();
4596 /* Make a copy of the signature from the image mempool */
4598 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4602 sig = mono_method_signature (method);
4604 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4606 csig->ret = &mono_defaults.object_class->byval_arg;
4607 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4608 csig->params [0] = callsig->params [0];
4610 csig->params [0] = &mono_defaults.object_class->byval_arg;
4611 csig->params [1] = &mono_defaults.int_class->byval_arg;
4612 csig->params [2] = &mono_defaults.int_class->byval_arg;
4613 csig->params [3] = &mono_defaults.int_class->byval_arg;
4616 /* This is called from runtime code so it has to be cdecl */
4617 csig->call_convention = MONO_CALL_C;
4620 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4621 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4624 param_names [0] = "this";
4625 param_names [1] = "params";
4626 param_names [2] = "exc";
4627 param_names [3] = "method";
4628 mono_mb_set_param_names (mb, param_names);
4630 emit_runtime_invoke_body (mb, target_klass, method, sig, callsig, virtual, need_direct_wrapper);
4632 if (need_direct_wrapper) {
4633 mb->skip_visibility = 1;
4634 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4636 /* taken from mono_mb_create_and_cache */
4637 mono_marshal_lock ();
4638 res = g_hash_table_lookup (cache, callsig);
4639 mono_marshal_unlock ();
4641 /* Somebody may have created it before us */
4644 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4646 mono_marshal_lock ();
4647 res = g_hash_table_lookup (cache, callsig);
4650 g_hash_table_insert (cache, callsig, res);
4651 /* Can't insert it into wrapper_hash since the key is a signature */
4652 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4654 mono_free_method (newm);
4656 mono_marshal_unlock ();
4659 /* end mono_mb_create_and_cache */
4668 * mono_marshal_get_runtime_invoke_dynamic:
4670 * Return a method which can be used to invoke managed methods from native code
4672 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4673 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4674 * ARGS should point to an architecture specific structure containing
4675 * the arguments and space for the return value.
4676 * The other arguments are the same as for runtime_invoke (), except that
4677 * ARGS should contain the this argument too.
4678 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4679 * is only one copy of it, which is useful in full-aot.
4682 mono_marshal_get_runtime_invoke_dynamic (void)
4684 static MonoMethod *method;
4685 MonoMethodSignature *csig;
4686 MonoExceptionClause *clause;
4687 MonoMethodBuilder *mb;
4694 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4696 csig->ret = &mono_defaults.void_class->byval_arg;
4697 csig->params [0] = &mono_defaults.int_class->byval_arg;
4698 csig->params [1] = &mono_defaults.int_class->byval_arg;
4699 csig->params [2] = &mono_defaults.int_class->byval_arg;
4700 csig->params [3] = &mono_defaults.int_class->byval_arg;
4702 name = g_strdup ("runtime_invoke_dynamic");
4703 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4706 /* allocate local 0 (object) tmp */
4707 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4708 /* allocate local 1 (object) exc */
4709 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4711 /* cond set *exc to null */
4712 mono_mb_emit_byte (mb, CEE_LDARG_1);
4713 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4714 mono_mb_emit_byte (mb, 3);
4715 mono_mb_emit_byte (mb, CEE_LDARG_1);
4716 mono_mb_emit_byte (mb, CEE_LDNULL);
4717 mono_mb_emit_byte (mb, CEE_STIND_REF);
4719 emit_thread_force_interrupt_checkpoint (mb);
4721 mono_mb_emit_byte (mb, CEE_LDARG_0);
4722 mono_mb_emit_byte (mb, CEE_LDARG_2);
4723 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4724 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4726 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4728 clause = mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4729 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4730 clause->try_len = mono_mb_get_label (mb);
4733 clause->data.filter_offset = mono_mb_get_label (mb);
4735 mono_mb_emit_byte (mb, CEE_POP);
4736 mono_mb_emit_byte (mb, CEE_LDARG_1);
4737 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4738 mono_mb_emit_byte (mb, CEE_PREFIX1);
4739 mono_mb_emit_byte (mb, CEE_CGT_UN);
4740 mono_mb_emit_byte (mb, CEE_PREFIX1);
4741 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4743 clause->handler_offset = mono_mb_get_label (mb);
4746 /* store exception */
4747 mono_mb_emit_stloc (mb, 1);
4749 mono_mb_emit_byte (mb, CEE_LDARG_1);
4750 mono_mb_emit_ldloc (mb, 1);
4751 mono_mb_emit_byte (mb, CEE_STIND_REF);
4753 mono_mb_emit_byte (mb, CEE_LDNULL);
4754 mono_mb_emit_stloc (mb, 0);
4756 /* Check for the abort exception */
4757 mono_mb_emit_ldloc (mb, 1);
4758 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4759 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4761 /* Delay the abort exception */
4762 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4764 mono_mb_patch_short_branch (mb, posna);
4765 mono_mb_emit_branch (mb, CEE_LEAVE);
4767 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4769 mono_mb_set_clauses (mb, 1, clause);
4772 mono_mb_patch_branch (mb, pos);
4773 //mono_mb_emit_ldloc (mb, 0);
4774 mono_mb_emit_byte (mb, CEE_RET);
4776 mono_loader_lock ();
4777 /* double-checked locking */
4779 method = mono_mb_create_method (mb, csig, 16);
4781 mono_loader_unlock ();
4789 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4791 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4792 klass->name_space, klass->name);
4794 mono_mb_emit_exception_marshal_directive (mb, msg);
4798 * mono_marshal_get_ldfld_remote_wrapper:
4799 * @klass: The return type
4801 * This method generates a wrapper for calling mono_load_remote_field_new.
4802 * The return type is ignored for now, as mono_load_remote_field_new () always
4803 * returns an object. In the future, to optimize some codepaths, we might
4804 * call a different function that takes a pointer to a valuetype, instead.
4807 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4809 MonoMethodSignature *sig, *csig;
4810 MonoMethodBuilder *mb;
4812 static MonoMethod* cached = NULL;
4814 mono_marshal_lock ();
4816 mono_marshal_unlock ();
4819 mono_marshal_unlock ();
4821 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4823 mb->method->save_lmf = 1;
4825 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4826 sig->params [0] = &mono_defaults.object_class->byval_arg;
4827 sig->params [1] = &mono_defaults.int_class->byval_arg;
4828 sig->params [2] = &mono_defaults.int_class->byval_arg;
4829 sig->ret = &mono_defaults.object_class->byval_arg;
4831 mono_mb_emit_ldarg (mb, 0);
4832 mono_mb_emit_ldarg (mb, 1);
4833 mono_mb_emit_ldarg (mb, 2);
4835 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4836 csig->params [0] = &mono_defaults.object_class->byval_arg;
4837 csig->params [1] = &mono_defaults.int_class->byval_arg;
4838 csig->params [2] = &mono_defaults.int_class->byval_arg;
4839 csig->ret = &mono_defaults.object_class->byval_arg;
4842 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4843 emit_thread_interrupt_checkpoint (mb);
4845 mono_mb_emit_byte (mb, CEE_RET);
4847 mono_marshal_lock ();
4849 mono_marshal_unlock ();
4852 newm = mono_mb_create_method (mb, sig, 4);
4853 mono_marshal_lock ();
4858 mono_marshal_unlock ();
4860 mono_marshal_unlock ();
4861 mono_free_method (newm);
4870 * mono_marshal_get_ldfld_wrapper:
4871 * @type: the type of the field
4873 * This method generates a function which can be use to load a field with type
4874 * @type from an object. The generated function has the following signature:
4875 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4878 mono_marshal_get_ldfld_wrapper (MonoType *type)
4880 MonoMethodSignature *sig;
4881 MonoMethodBuilder *mb;
4886 int t, pos0, pos1 = 0;
4888 type = mono_type_get_underlying_type (type);
4893 if (type->type == MONO_TYPE_SZARRAY) {
4894 klass = mono_defaults.array_class;
4895 } else if (type->type == MONO_TYPE_VALUETYPE) {
4896 klass = type->data.klass;
4897 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4898 klass = mono_defaults.object_class;
4899 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4900 klass = mono_defaults.int_class;
4901 } else if (t == MONO_TYPE_GENERICINST) {
4902 if (mono_type_generic_inst_is_valuetype (type))
4903 klass = mono_class_from_mono_type (type);
4905 klass = mono_defaults.object_class;
4907 klass = mono_class_from_mono_type (type);
4910 klass = mono_defaults.int_class;
4913 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4914 if ((res = mono_marshal_find_in_cache (cache, klass)))
4917 /* we add the %p pointer value of klass because class names are not unique */
4918 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4919 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4922 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4923 sig->params [0] = &mono_defaults.object_class->byval_arg;
4924 sig->params [1] = &mono_defaults.int_class->byval_arg;
4925 sig->params [2] = &mono_defaults.int_class->byval_arg;
4926 sig->params [3] = &mono_defaults.int_class->byval_arg;
4927 sig->ret = &klass->byval_arg;
4929 mono_mb_emit_ldarg (mb, 0);
4930 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4932 mono_mb_emit_ldarg (mb, 0);
4933 mono_mb_emit_ldarg (mb, 1);
4934 mono_mb_emit_ldarg (mb, 2);
4936 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4939 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4940 csig->params [0] = &mono_defaults.object_class->byval_arg;
4941 csig->params [1] = &mono_defaults.int_class->byval_arg;
4942 csig->params [2] = &mono_defaults.int_class->byval_arg;
4943 csig->ret = &klass->this_arg;
4946 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4947 emit_thread_interrupt_checkpoint (mb);
4950 if (klass->valuetype) {
4951 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4952 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4954 mono_mb_emit_byte (mb, CEE_RET);
4958 mono_mb_patch_branch (mb, pos0);
4960 mono_mb_emit_ldarg (mb, 0);
4961 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4962 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4963 mono_mb_emit_ldarg (mb, 3);
4964 mono_mb_emit_byte (mb, CEE_ADD);
4966 if (klass->valuetype)
4967 mono_mb_patch_branch (mb, pos1);
4972 case MONO_TYPE_BOOLEAN:
4973 case MONO_TYPE_CHAR:
4982 case MONO_TYPE_ARRAY:
4983 case MONO_TYPE_SZARRAY:
4984 case MONO_TYPE_OBJECT:
4985 case MONO_TYPE_CLASS:
4986 case MONO_TYPE_STRING:
4990 case MONO_TYPE_FNPTR:
4991 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4993 case MONO_TYPE_VALUETYPE:
4994 g_assert (!klass->enumtype);
4995 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4997 case MONO_TYPE_GENERICINST:
4998 if (mono_type_generic_inst_is_valuetype (type)) {
4999 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5001 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5005 g_warning ("type %x not implemented", type->type);
5006 g_assert_not_reached ();
5009 mono_mb_emit_byte (mb, CEE_RET);
5011 res = mono_mb_create_and_cache (cache, klass,
5012 mb, sig, sig->param_count + 16);
5019 * mono_marshal_get_ldflda_wrapper:
5020 * @type: the type of the field
5022 * This method generates a function which can be used to load a field address
5023 * from an object. The generated function has the following signature:
5024 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5027 mono_marshal_get_ldflda_wrapper (MonoType *type)
5029 MonoMethodSignature *sig;
5030 MonoMethodBuilder *mb;
5035 int t, pos0, pos1, pos2, pos3;
5037 type = mono_type_get_underlying_type (type);
5041 if (type->type == MONO_TYPE_SZARRAY) {
5042 klass = mono_defaults.array_class;
5043 } else if (type->type == MONO_TYPE_VALUETYPE) {
5044 klass = type->data.klass;
5045 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5046 t == MONO_TYPE_CLASS) {
5047 klass = mono_defaults.object_class;
5048 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5049 klass = mono_defaults.int_class;
5050 } else if (t == MONO_TYPE_GENERICINST) {
5051 if (mono_type_generic_inst_is_valuetype (type))
5052 klass = mono_class_from_mono_type (type);
5054 klass = mono_defaults.object_class;
5056 klass = mono_class_from_mono_type (type);
5059 klass = mono_defaults.int_class;
5062 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
5063 if ((res = mono_marshal_find_in_cache (cache, klass)))
5066 /* we add the %p pointer value of klass because class names are not unique */
5067 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5068 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5071 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5072 sig->params [0] = &mono_defaults.object_class->byval_arg;
5073 sig->params [1] = &mono_defaults.int_class->byval_arg;
5074 sig->params [2] = &mono_defaults.int_class->byval_arg;
5075 sig->params [3] = &mono_defaults.int_class->byval_arg;
5076 sig->ret = &mono_defaults.int_class->byval_arg;
5078 /* if typeof (this) != transparent_proxy goto pos0 */
5079 mono_mb_emit_ldarg (mb, 0);
5080 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5082 /* if same_appdomain goto pos1 */
5083 mono_mb_emit_ldarg (mb, 0);
5084 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
5086 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5088 /* same app domain */
5089 mono_mb_patch_branch (mb, pos1);
5091 /* if typeof (this) != contextbound goto pos2 */
5092 mono_mb_emit_ldarg (mb, 0);
5093 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
5095 /* if this->rp->context == mono_context_get goto pos3 */
5096 mono_mb_emit_ldarg (mb, 0);
5097 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5098 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5099 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
5100 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5101 mono_mb_emit_icall (mb, mono_context_get);
5102 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
5104 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
5106 mono_mb_patch_branch (mb, pos2);
5107 mono_mb_patch_branch (mb, pos3);
5109 /* return the address of the field from this->rp->unwrapped_server */
5110 mono_mb_emit_ldarg (mb, 0);
5111 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
5112 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5113 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
5114 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5115 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5116 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5117 mono_mb_emit_ldarg (mb, 3);
5118 mono_mb_emit_byte (mb, CEE_ADD);
5119 mono_mb_emit_byte (mb, CEE_RET);
5121 /* not a proxy: return the address of the field directly */
5122 mono_mb_patch_branch (mb, pos0);
5124 mono_mb_emit_ldarg (mb, 0);
5125 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5126 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5127 mono_mb_emit_ldarg (mb, 3);
5128 mono_mb_emit_byte (mb, CEE_ADD);
5130 mono_mb_emit_byte (mb, CEE_RET);
5132 res = mono_mb_create_and_cache (cache, klass,
5133 mb, sig, sig->param_count + 16);
5140 * mono_marshal_get_stfld_remote_wrapper:
5141 * klass: The type of the field
5143 * This function generates a wrapper for calling mono_store_remote_field_new
5144 * with the appropriate signature.
5145 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
5146 * klass argument anymore.
5149 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5151 MonoMethodSignature *sig, *csig;
5152 MonoMethodBuilder *mb;
5154 static MonoMethod *cached = NULL;
5156 mono_marshal_lock ();
5158 mono_marshal_unlock ();
5161 mono_marshal_unlock ();
5163 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
5165 mb->method->save_lmf = 1;
5167 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5168 sig->params [0] = &mono_defaults.object_class->byval_arg;
5169 sig->params [1] = &mono_defaults.int_class->byval_arg;
5170 sig->params [2] = &mono_defaults.int_class->byval_arg;
5171 sig->params [3] = &mono_defaults.object_class->byval_arg;
5172 sig->ret = &mono_defaults.void_class->byval_arg;
5174 mono_mb_emit_ldarg (mb, 0);
5175 mono_mb_emit_ldarg (mb, 1);
5176 mono_mb_emit_ldarg (mb, 2);
5177 mono_mb_emit_ldarg (mb, 3);
5179 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5180 csig->params [0] = &mono_defaults.object_class->byval_arg;
5181 csig->params [1] = &mono_defaults.int_class->byval_arg;
5182 csig->params [2] = &mono_defaults.int_class->byval_arg;
5183 csig->params [3] = &mono_defaults.object_class->byval_arg;
5184 csig->ret = &mono_defaults.void_class->byval_arg;
5187 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5188 emit_thread_interrupt_checkpoint (mb);
5190 mono_mb_emit_byte (mb, CEE_RET);
5192 mono_marshal_lock ();
5194 mono_marshal_unlock ();
5197 newm = mono_mb_create_method (mb, sig, 6);
5198 mono_marshal_lock ();
5203 mono_marshal_unlock ();
5205 mono_marshal_unlock ();
5206 mono_free_method (newm);
5215 * mono_marshal_get_stfld_wrapper:
5216 * @type: the type of the field
5218 * This method generates a function which can be use to store a field with type
5219 * @type. The generated function has the following signature:
5220 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5223 mono_marshal_get_stfld_wrapper (MonoType *type)
5225 MonoMethodSignature *sig;
5226 MonoMethodBuilder *mb;
5233 type = mono_type_get_underlying_type (type);
5237 if (type->type == MONO_TYPE_SZARRAY) {
5238 klass = mono_defaults.array_class;
5239 } else if (type->type == MONO_TYPE_VALUETYPE) {
5240 klass = type->data.klass;
5241 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5242 klass = mono_defaults.object_class;
5243 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5244 klass = mono_defaults.int_class;
5245 } else if (t == MONO_TYPE_GENERICINST) {
5246 if (mono_type_generic_inst_is_valuetype (type))
5247 klass = mono_class_from_mono_type (type);
5249 klass = mono_defaults.object_class;
5251 klass = mono_class_from_mono_type (type);
5254 klass = mono_defaults.int_class;
5257 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
5258 if ((res = mono_marshal_find_in_cache (cache, klass)))
5261 /* we add the %p pointer value of klass because class names are not unique */
5262 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5263 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5266 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5267 sig->params [0] = &mono_defaults.object_class->byval_arg;
5268 sig->params [1] = &mono_defaults.int_class->byval_arg;
5269 sig->params [2] = &mono_defaults.int_class->byval_arg;
5270 sig->params [3] = &mono_defaults.int_class->byval_arg;
5271 sig->params [4] = &klass->byval_arg;
5272 sig->ret = &mono_defaults.void_class->byval_arg;
5274 mono_mb_emit_ldarg (mb, 0);
5275 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5277 mono_mb_emit_ldarg (mb, 0);
5278 mono_mb_emit_ldarg (mb, 1);
5279 mono_mb_emit_ldarg (mb, 2);
5280 mono_mb_emit_ldarg (mb, 4);
5281 if (klass->valuetype)
5282 mono_mb_emit_op (mb, CEE_BOX, klass);
5284 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5286 mono_mb_emit_byte (mb, CEE_RET);
5288 mono_mb_patch_branch (mb, pos);
5290 mono_mb_emit_ldarg (mb, 0);
5291 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5292 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5293 mono_mb_emit_ldarg (mb, 3);
5294 mono_mb_emit_byte (mb, CEE_ADD);
5295 mono_mb_emit_ldarg (mb, 4);
5300 case MONO_TYPE_BOOLEAN:
5301 case MONO_TYPE_CHAR:
5310 case MONO_TYPE_ARRAY:
5311 case MONO_TYPE_SZARRAY:
5312 case MONO_TYPE_OBJECT:
5313 case MONO_TYPE_CLASS:
5314 case MONO_TYPE_STRING:
5318 case MONO_TYPE_FNPTR:
5319 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5321 case MONO_TYPE_VALUETYPE:
5322 g_assert (!klass->enumtype);
5323 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5325 case MONO_TYPE_GENERICINST:
5326 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5329 g_warning ("type %x not implemented", type->type);
5330 g_assert_not_reached ();
5333 mono_mb_emit_byte (mb, CEE_RET);
5335 res = mono_mb_create_and_cache (cache, klass,
5336 mb, sig, sig->param_count + 16);
5343 * generates IL code for the icall wrapper (the generated method
5344 * calls the unmanaged code in func)
5347 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5349 MonoMethodSignature *csig, *csig2;
5350 MonoMethodBuilder *mb;
5354 g_assert (sig->pinvoke);
5356 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5358 mb->method->save_lmf = 1;
5360 /* Add an explicit this argument */
5362 csig2 = signature_dup_add_this (sig, mono_defaults.object_class);
5364 csig2 = signature_dup (mono_defaults.corlib, sig);
5367 mono_mb_emit_byte (mb, CEE_LDARG_0);
5369 for (i = 0; i < sig->param_count; i++)
5370 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5372 mono_mb_emit_native_call (mb, csig2, (gpointer) func);
5373 if (check_exceptions)
5374 emit_thread_interrupt_checkpoint (mb);
5375 mono_mb_emit_byte (mb, CEE_RET);
5377 csig = signature_dup (mono_defaults.corlib, sig);
5379 if (csig->call_convention == MONO_CALL_VARARG)
5380 csig->call_convention = 0;
5382 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5389 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5390 MonoMarshalSpec *spec,
5391 int conv_arg, MonoType **conv_arg_type,
5392 MarshalAction action)
5396 static MonoClass *ICustomMarshaler = NULL;
5397 static MonoMethod *cleanup_native, *cleanup_managed;
5398 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5399 MonoMethod *get_instance = NULL;
5400 MonoMethodBuilder *mb = m->mb;
5401 char *exception_msg = NULL;
5405 if (!ICustomMarshaler) {
5406 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5407 if (!ICustomMarshaler) {
5408 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
5409 goto handle_exception;
5412 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5413 g_assert (cleanup_native);
5414 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5415 g_assert (cleanup_managed);
5416 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5417 g_assert (marshal_managed_to_native);
5418 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5419 g_assert (marshal_native_to_managed);
5422 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5423 g_assert (mtype != NULL);
5424 mklass = mono_class_from_mono_type (mtype);
5425 g_assert (mklass != NULL);
5427 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5428 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5430 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5432 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5433 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5434 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5435 (get_sig->params [0]->type != MONO_TYPE_STRING))
5436 get_instance = NULL;
5440 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);
5443 /* Throw exception and emit compensation code if neccesary */
5444 if (exception_msg) {
5446 case MARSHAL_ACTION_CONV_IN:
5447 case MARSHAL_ACTION_CONV_RESULT:
5448 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5449 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5450 mono_mb_emit_byte (mb, CEE_POP);
5452 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5453 g_free (exception_msg);
5456 case MARSHAL_ACTION_PUSH:
5457 mono_mb_emit_byte (mb, CEE_LDNULL);
5465 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5466 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5469 case MARSHAL_ACTION_CONV_IN:
5471 case MONO_TYPE_CLASS:
5472 case MONO_TYPE_OBJECT:
5473 case MONO_TYPE_STRING:
5474 case MONO_TYPE_ARRAY:
5475 case MONO_TYPE_SZARRAY:
5476 case MONO_TYPE_VALUETYPE:
5480 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5481 g_assert_not_reached ();
5485 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5487 mono_mb_emit_byte (mb, CEE_LDNULL);
5488 mono_mb_emit_stloc (mb, conv_arg);
5490 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5493 /* Minic MS.NET behavior */
5494 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5497 /* Check for null */
5498 mono_mb_emit_ldarg (mb, argnum);
5500 mono_mb_emit_byte (mb, CEE_LDIND_I);
5501 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5503 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5505 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5507 mono_mb_emit_ldarg (mb, argnum);
5509 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5511 if (t->type == MONO_TYPE_VALUETYPE) {
5513 * Since we can't determine the type of the argument, we
5514 * will assume the unmanaged function takes a pointer.
5516 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5518 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5521 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5522 mono_mb_emit_stloc (mb, conv_arg);
5524 mono_mb_patch_branch (mb, pos2);
5527 case MARSHAL_ACTION_CONV_OUT:
5528 /* Check for null */
5529 mono_mb_emit_ldloc (mb, conv_arg);
5530 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5533 mono_mb_emit_ldarg (mb, argnum);
5535 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5537 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5539 mono_mb_emit_ldloc (mb, conv_arg);
5540 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5541 mono_mb_emit_byte (mb, CEE_STIND_REF);
5542 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5543 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5545 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5547 mono_mb_emit_ldloc (mb, conv_arg);
5548 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5550 /* We have nowhere to store the result */
5551 mono_mb_emit_byte (mb, CEE_POP);
5554 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5556 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5558 mono_mb_emit_ldloc (mb, conv_arg);
5560 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5562 mono_mb_patch_branch (mb, pos2);
5565 case MARSHAL_ACTION_PUSH:
5567 mono_mb_emit_ldloc_addr (mb, conv_arg);
5569 mono_mb_emit_ldloc (mb, conv_arg);
5572 case MARSHAL_ACTION_CONV_RESULT:
5573 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5575 mono_mb_emit_stloc (mb, 3);
5577 mono_mb_emit_ldloc (mb, 3);
5578 mono_mb_emit_stloc (mb, loc1);
5580 /* Check for null */
5581 mono_mb_emit_ldloc (mb, 3);
5582 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5584 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5586 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5587 mono_mb_emit_byte (mb, CEE_DUP);
5589 mono_mb_emit_ldloc (mb, 3);
5590 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5591 mono_mb_emit_stloc (mb, 3);
5593 mono_mb_emit_ldloc (mb, loc1);
5594 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5596 mono_mb_patch_branch (mb, pos2);
5599 case MARSHAL_ACTION_MANAGED_CONV_IN:
5600 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5602 mono_mb_emit_byte (mb, CEE_LDNULL);
5603 mono_mb_emit_stloc (mb, conv_arg);
5605 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5608 /* Check for null */
5609 mono_mb_emit_ldarg (mb, argnum);
5611 mono_mb_emit_byte (mb, CEE_LDIND_I);
5612 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5614 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5615 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5617 mono_mb_emit_ldarg (mb, argnum);
5619 mono_mb_emit_byte (mb, CEE_LDIND_I);
5621 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5622 mono_mb_emit_stloc (mb, conv_arg);
5624 mono_mb_patch_branch (mb, pos2);
5627 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5628 g_assert (!t->byref);
5630 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5632 mono_mb_emit_stloc (mb, 3);
5634 mono_mb_emit_ldloc (mb, 3);
5635 mono_mb_emit_stloc (mb, loc1);
5637 /* Check for null */
5638 mono_mb_emit_ldloc (mb, 3);
5639 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5641 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5642 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5643 mono_mb_emit_byte (mb, CEE_DUP);
5645 mono_mb_emit_ldloc (mb, 3);
5646 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5647 mono_mb_emit_stloc (mb, 3);
5649 mono_mb_emit_ldloc (mb, loc1);
5650 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5652 mono_mb_patch_branch (mb, pos2);
5655 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5657 /* Check for null */
5658 mono_mb_emit_ldloc (mb, conv_arg);
5659 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5662 mono_mb_emit_ldarg (mb, argnum);
5664 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5666 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5668 mono_mb_emit_ldloc (mb, conv_arg);
5669 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5670 mono_mb_emit_byte (mb, CEE_STIND_I);
5673 /* Call CleanUpManagedData */
5674 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_ldloc (mb, conv_arg);
5679 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5681 mono_mb_patch_branch (mb, pos2);
5685 g_assert_not_reached ();
5692 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5693 MonoMarshalSpec *spec,
5694 int conv_arg, MonoType **conv_arg_type,
5695 MarshalAction action)
5697 MonoMethodBuilder *mb = m->mb;
5700 case MARSHAL_ACTION_CONV_IN: {
5701 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5703 g_assert (t->type == MONO_TYPE_OBJECT);
5704 g_assert (!t->byref);
5706 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5707 mono_mb_emit_ldarg (mb, argnum);
5708 mono_mb_emit_icon (mb, encoding);
5709 mono_mb_emit_icon (mb, t->attrs);
5710 mono_mb_emit_icall (mb, mono_marshal_asany);
5711 mono_mb_emit_stloc (mb, conv_arg);
5715 case MARSHAL_ACTION_PUSH:
5716 mono_mb_emit_ldloc (mb, conv_arg);
5719 case MARSHAL_ACTION_CONV_OUT: {
5720 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5722 mono_mb_emit_ldarg (mb, argnum);
5723 mono_mb_emit_ldloc (mb, conv_arg);
5724 mono_mb_emit_icon (mb, encoding);
5725 mono_mb_emit_icon (mb, t->attrs);
5726 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5731 g_assert_not_reached ();
5738 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5739 MonoMarshalSpec *spec,
5740 int conv_arg, MonoType **conv_arg_type,
5741 MarshalAction action)
5743 MonoMethodBuilder *mb = m->mb;
5744 MonoClass *klass, *date_time_class;
5747 klass = mono_class_from_mono_type (t);
5749 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
5752 case MARSHAL_ACTION_CONV_IN:
5753 if (klass == date_time_class) {
5754 /* Convert it to an OLE DATE type */
5755 static MonoMethod *to_oadate;
5758 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5759 g_assert (to_oadate);
5761 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5764 mono_mb_emit_ldarg (mb, argnum);
5765 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5768 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5770 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5772 mono_mb_emit_ldarg_addr (mb, argnum);
5773 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5774 mono_mb_emit_stloc (mb, conv_arg);
5778 mono_mb_patch_branch (mb, pos);
5782 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5783 klass->blittable || klass->enumtype)
5786 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5788 /* store the address of the source into local variable 0 */
5790 mono_mb_emit_ldarg (mb, argnum);
5792 mono_mb_emit_ldarg_addr (mb, argnum);
5794 mono_mb_emit_stloc (mb, 0);
5796 /* allocate space for the native struct and
5797 * store the address into local variable 1 (dest) */
5798 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5799 mono_mb_emit_byte (mb, CEE_PREFIX1);
5800 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5801 mono_mb_emit_stloc (mb, conv_arg);
5804 mono_mb_emit_ldloc (mb, 0);
5805 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5808 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5810 mono_mb_emit_ldloc (mb, conv_arg);
5811 mono_mb_emit_stloc (mb, 1);
5813 /* emit valuetype conversion code */
5814 emit_struct_conv (mb, klass, FALSE);
5818 mono_mb_patch_branch (mb, pos);
5821 case MARSHAL_ACTION_PUSH:
5822 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5824 g_assert (!t->byref);
5826 /* Have to change the signature since the vtype is passed byref */
5827 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5829 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5830 klass->blittable || klass->enumtype)
5831 mono_mb_emit_ldarg_addr (mb, argnum);
5833 mono_mb_emit_ldloc (mb, conv_arg);
5837 if (klass == date_time_class) {
5839 mono_mb_emit_ldloc_addr (mb, conv_arg);
5841 mono_mb_emit_ldloc (mb, conv_arg);
5845 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5846 klass->blittable || klass->enumtype) {
5847 mono_mb_emit_ldarg (mb, argnum);
5850 mono_mb_emit_ldloc (mb, conv_arg);
5852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5853 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5857 case MARSHAL_ACTION_CONV_OUT:
5858 if (klass == date_time_class) {
5859 /* Convert from an OLE DATE type */
5860 static MonoMethod *from_oadate;
5865 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5867 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5868 g_assert (from_oadate);
5870 mono_mb_emit_ldarg (mb, argnum);
5871 mono_mb_emit_ldloc (mb, conv_arg);
5872 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5873 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5878 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5879 klass->blittable || klass->enumtype)
5883 /* dst = argument */
5884 mono_mb_emit_ldarg (mb, argnum);
5885 mono_mb_emit_stloc (mb, 1);
5887 mono_mb_emit_ldloc (mb, 1);
5888 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5890 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5891 /* src = tmp_locals [i] */
5892 mono_mb_emit_ldloc (mb, conv_arg);
5893 mono_mb_emit_stloc (mb, 0);
5895 /* emit valuetype conversion code */
5896 emit_struct_conv (mb, klass, TRUE);
5900 emit_struct_free (mb, klass, conv_arg);
5903 mono_mb_patch_branch (mb, pos);
5906 case MARSHAL_ACTION_CONV_RESULT:
5907 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5909 mono_mb_emit_stloc (mb, 3);
5913 /* load pointer to returned value type */
5914 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5915 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5916 /* store the address of the source into local variable 0 */
5917 mono_mb_emit_stloc (mb, 0);
5919 mono_mb_emit_ldloc_addr (mb, 3);
5920 mono_mb_emit_stloc (mb, 1);
5922 /* emit valuetype conversion code */
5923 emit_struct_conv (mb, klass, TRUE);
5926 case MARSHAL_ACTION_MANAGED_CONV_IN:
5927 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5928 klass->blittable || klass->enumtype) {
5933 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5935 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5939 mono_mb_emit_ldarg (mb, argnum);
5941 mono_mb_emit_ldarg_addr (mb, argnum);
5942 mono_mb_emit_stloc (mb, 0);
5945 mono_mb_emit_ldloc (mb, 0);
5946 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5949 mono_mb_emit_ldloc_addr (mb, conv_arg);
5950 mono_mb_emit_stloc (mb, 1);
5952 /* emit valuetype conversion code */
5953 emit_struct_conv (mb, klass, TRUE);
5956 mono_mb_patch_branch (mb, pos);
5959 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5960 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5961 klass->blittable || klass->enumtype) {
5965 /* Check for null */
5966 mono_mb_emit_ldarg (mb, argnum);
5967 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5970 mono_mb_emit_ldloc_addr (mb, conv_arg);
5971 mono_mb_emit_stloc (mb, 0);
5974 mono_mb_emit_ldarg (mb, argnum);
5975 mono_mb_emit_stloc (mb, 1);
5977 /* emit valuetype conversion code */
5978 emit_struct_conv (mb, klass, FALSE);
5980 mono_mb_patch_branch (mb, pos2);
5983 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5984 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5985 klass->blittable || klass->enumtype) {
5986 mono_mb_emit_stloc (mb, 3);
5991 /* load pointer to returned value type */
5992 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5993 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5995 /* store the address of the source into local variable 0 */
5996 mono_mb_emit_stloc (mb, 0);
5997 /* allocate space for the native struct and
5998 * store the address into dst_ptr */
5999 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6000 m->retobj_class = klass;
6001 g_assert (m->retobj_var);
6002 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6003 mono_mb_emit_byte (mb, CEE_CONV_I);
6004 mono_mb_emit_icall (mb, mono_marshal_alloc);
6005 mono_mb_emit_stloc (mb, 1);
6006 mono_mb_emit_ldloc (mb, 1);
6007 mono_mb_emit_stloc (mb, m->retobj_var);
6009 /* emit valuetype conversion code */
6010 emit_struct_conv (mb, klass, FALSE);
6014 g_assert_not_reached ();
6021 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
6022 MonoMarshalSpec *spec,
6023 int conv_arg, MonoType **conv_arg_type,
6024 MarshalAction action)
6026 MonoMethodBuilder *mb = m->mb;
6027 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6028 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6032 case MARSHAL_ACTION_CONV_IN:
6033 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6034 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6037 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6040 mono_mb_emit_ldarg (mb, argnum);
6041 mono_mb_emit_byte (mb, CEE_LDIND_I);
6043 mono_mb_emit_ldarg (mb, argnum);
6047 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6048 MonoException *exc = mono_get_exception_not_implemented (msg);
6049 g_warning ("%s", msg);
6051 mono_raise_exception (exc);
6054 mono_mb_emit_icall (mb, conv_to_icall (conv));
6056 mono_mb_emit_stloc (mb, conv_arg);
6059 case MARSHAL_ACTION_CONV_OUT:
6060 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6062 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6063 mono_mb_emit_exception_marshal_directive (mb, msg);
6067 if (encoding == MONO_NATIVE_VBBYREFSTR) {
6068 static MonoMethod *m;
6071 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
6076 * Have to allocate a new string with the same length as the original, and
6077 * copy the contents of the buffer pointed to by CONV_ARG into it.
6079 g_assert (t->byref);
6080 mono_mb_emit_ldarg (mb, argnum);
6081 mono_mb_emit_ldloc (mb, conv_arg);
6082 mono_mb_emit_ldarg (mb, argnum);
6083 mono_mb_emit_byte (mb, CEE_LDIND_I);
6084 mono_mb_emit_managed_call (mb, m, NULL);
6085 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
6086 mono_mb_emit_byte (mb, CEE_STIND_REF);
6087 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6088 mono_mb_emit_ldarg (mb, argnum);
6089 mono_mb_emit_ldloc (mb, conv_arg);
6090 mono_mb_emit_icall (mb, conv_to_icall (conv));
6091 mono_mb_emit_byte (mb, CEE_STIND_REF);
6094 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
6095 mono_mb_emit_ldloc (mb, conv_arg);
6096 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6097 mono_mb_emit_icall (mb, mono_free_bstr);
6099 mono_mb_emit_icall (mb, mono_marshal_free);
6103 case MARSHAL_ACTION_PUSH:
6104 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
6105 mono_mb_emit_ldloc_addr (mb, conv_arg);
6107 mono_mb_emit_ldloc (mb, conv_arg);
6110 case MARSHAL_ACTION_CONV_RESULT:
6111 mono_mb_emit_stloc (mb, 0);
6113 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6115 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6116 mono_mb_emit_exception_marshal_directive (mb, msg);
6120 mono_mb_emit_ldloc (mb, 0);
6121 mono_mb_emit_icall (mb, conv_to_icall (conv));
6122 mono_mb_emit_stloc (mb, 3);
6124 /* free the string */
6125 mono_mb_emit_ldloc (mb, 0);
6126 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6127 mono_mb_emit_icall (mb, mono_free_bstr);
6129 mono_mb_emit_icall (mb, mono_marshal_free);
6132 case MARSHAL_ACTION_MANAGED_CONV_IN:
6133 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6135 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6137 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6139 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6140 mono_mb_emit_exception_marshal_directive (mb, msg);
6144 mono_mb_emit_ldarg (mb, argnum);
6146 mono_mb_emit_byte (mb, CEE_LDIND_I);
6147 mono_mb_emit_icall (mb, conv_to_icall (conv));
6148 mono_mb_emit_stloc (mb, conv_arg);
6151 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6154 mono_mb_emit_ldarg (mb, argnum);
6155 mono_mb_emit_ldloc (mb, conv_arg);
6156 mono_mb_emit_icall (mb, conv_to_icall (conv));
6157 mono_mb_emit_byte (mb, CEE_STIND_I);
6162 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6163 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6164 /* We need to make a copy so the caller is able to free it */
6165 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6167 mono_mb_emit_icall (mb, conv_to_icall (conv));
6168 mono_mb_emit_stloc (mb, 3);
6172 g_assert_not_reached ();
6179 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6180 MonoMarshalSpec *spec, int conv_arg,
6181 MonoType **conv_arg_type, MarshalAction action)
6183 MonoMethodBuilder *mb = m->mb;
6186 case MARSHAL_ACTION_CONV_IN: {
6187 MonoType *intptr_type;
6188 int dar_release_slot, pos;
6190 intptr_type = &mono_defaults.int_class->byval_arg;
6191 conv_arg = mono_mb_add_local (mb, intptr_type);
6192 *conv_arg_type = intptr_type;
6194 if (!sh_dangerous_add_ref)
6195 init_safe_handle ();
6197 mono_mb_emit_ldarg (mb, argnum);
6198 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6199 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6201 mono_mb_patch_branch (mb, pos);
6204 * My tests in show that ref SafeHandles are not really
6205 * passed as ref objects. Instead a NULL is passed as the
6208 mono_mb_emit_icon (mb, 0);
6209 mono_mb_emit_stloc (mb, conv_arg);
6213 /* Create local to hold the ref parameter to DangerousAddRef */
6214 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6216 /* set release = false; */
6217 mono_mb_emit_icon (mb, 0);
6218 mono_mb_emit_stloc (mb, dar_release_slot);
6220 /* safehandle.DangerousAddRef (ref release) */
6221 mono_mb_emit_ldarg (mb, argnum);
6222 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6223 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6225 /* Pull the handle field from SafeHandle */
6226 mono_mb_emit_ldarg (mb, argnum);
6227 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6228 mono_mb_emit_byte (mb, CEE_LDIND_I);
6229 mono_mb_emit_stloc (mb, conv_arg);
6234 case MARSHAL_ACTION_PUSH:
6236 mono_mb_emit_ldloc_addr (mb, conv_arg);
6238 mono_mb_emit_ldloc (mb, conv_arg);
6241 case MARSHAL_ACTION_CONV_OUT: {
6242 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6243 int dar_release_slot = conv_arg + 1;
6246 if (!sh_dangerous_release)
6247 init_safe_handle ();
6253 * My tests indicate that ref SafeHandles parameters are not actually
6254 * passed by ref, but instead a new Handle is created regardless of
6255 * whether a change happens in the unmanaged side.
6257 * Also, the Handle is created before calling into unmanaged code,
6258 * but we do not support that mechanism (getting to the original
6259 * handle) and it makes no difference where we create this
6261 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6263 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6266 /* refval = new SafeHandleDerived ()*/
6267 mono_mb_emit_ldarg (mb, argnum);
6268 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6269 mono_mb_emit_byte (mb, CEE_STIND_REF);
6271 /* refval.handle = returned_handle */
6272 mono_mb_emit_ldarg (mb, argnum);
6273 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6274 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6275 mono_mb_emit_ldloc (mb, conv_arg);
6276 mono_mb_emit_byte (mb, CEE_STIND_I);
6278 mono_mb_emit_ldloc (mb, dar_release_slot);
6279 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6280 mono_mb_emit_ldarg (mb, argnum);
6281 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6282 mono_mb_patch_branch (mb, label_next);
6287 case MARSHAL_ACTION_CONV_RESULT: {
6288 MonoMethod *ctor = NULL;
6289 int intptr_handle_slot;
6291 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6292 mono_mb_emit_byte (mb, CEE_POP);
6293 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
6297 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6299 mono_mb_emit_byte (mb, CEE_POP);
6300 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6303 /* Store the IntPtr results into a local */
6304 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6305 mono_mb_emit_stloc (mb, intptr_handle_slot);
6307 /* Create return value */
6308 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6309 mono_mb_emit_stloc (mb, 3);
6311 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6312 mono_mb_emit_ldloc (mb, 3);
6313 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6314 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6315 mono_mb_emit_byte (mb, CEE_STIND_I);
6319 case MARSHAL_ACTION_MANAGED_CONV_IN:
6320 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6323 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6324 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6327 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6328 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6331 printf ("Unhandled case for MarshalAction: %d\n", action);
6338 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6339 MonoMarshalSpec *spec, int conv_arg,
6340 MonoType **conv_arg_type, MarshalAction action)
6342 MonoMethodBuilder *mb = m->mb;
6345 case MARSHAL_ACTION_CONV_IN: {
6346 MonoType *intptr_type;
6348 intptr_type = &mono_defaults.int_class->byval_arg;
6349 conv_arg = mono_mb_add_local (mb, intptr_type);
6350 *conv_arg_type = intptr_type;
6353 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6354 mono_mb_emit_exception_marshal_directive (mb, msg);
6357 mono_mb_emit_ldarg_addr (mb, argnum);
6358 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6359 mono_mb_emit_byte (mb, CEE_ADD);
6360 mono_mb_emit_byte (mb, CEE_LDIND_I);
6361 mono_mb_emit_stloc (mb, conv_arg);
6365 case MARSHAL_ACTION_PUSH:
6366 mono_mb_emit_ldloc (mb, conv_arg);
6369 case MARSHAL_ACTION_CONV_OUT: {
6370 /* no resource release required */
6374 case MARSHAL_ACTION_CONV_RESULT: {
6375 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
6376 mono_mb_emit_exception_marshal_directive (mb, msg);
6380 case MARSHAL_ACTION_MANAGED_CONV_IN:
6381 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6384 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6385 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6388 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6389 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6392 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6399 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6400 MonoMarshalSpec *spec,
6401 int conv_arg, MonoType **conv_arg_type,
6402 MarshalAction action)
6404 MonoMethodBuilder *mb = m->mb;
6405 MonoClass *klass = mono_class_from_mono_type (t);
6409 case MARSHAL_ACTION_CONV_IN:
6410 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6411 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6413 m->orig_conv_args [argnum] = 0;
6415 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6416 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
6417 mono_mb_emit_exception_marshal_directive (mb, msg);
6421 if (klass->delegate) {
6423 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6424 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6425 mono_mb_emit_exception_marshal_directive (mb, msg);
6427 mono_mb_emit_byte (mb, CEE_LDNULL);
6428 mono_mb_emit_stloc (mb, conv_arg);
6430 mono_mb_emit_ldarg (mb, argnum);
6431 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6432 mono_mb_emit_stloc (mb, conv_arg);
6434 } else if (klass == mono_defaults.stringbuilder_class) {
6435 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6436 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6439 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6440 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
6441 mono_mb_emit_exception_marshal_directive (mb, msg);
6446 mono_mb_emit_ldarg (mb, argnum);
6449 mono_mb_emit_icall (mb, conv_to_icall (conv));
6451 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6452 MonoException *exc = mono_get_exception_not_implemented (msg);
6453 g_warning ("%s", msg);
6455 mono_raise_exception (exc);
6458 mono_mb_emit_stloc (mb, conv_arg);
6459 } else if (klass->blittable) {
6460 mono_mb_emit_byte (mb, CEE_LDNULL);
6461 mono_mb_emit_stloc (mb, conv_arg);
6463 mono_mb_emit_ldarg (mb, argnum);
6464 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6466 mono_mb_emit_ldarg (mb, argnum);
6467 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6468 mono_mb_emit_stloc (mb, conv_arg);
6470 mono_mb_patch_branch (mb, pos);
6473 mono_mb_emit_byte (mb, CEE_LDNULL);
6474 mono_mb_emit_stloc (mb, conv_arg);
6477 /* we dont need any conversions for out parameters */
6478 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6481 mono_mb_emit_ldarg (mb, argnum);
6482 mono_mb_emit_byte (mb, CEE_LDIND_I);
6485 mono_mb_emit_ldarg (mb, argnum);
6486 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6487 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6490 /* store the address of the source into local variable 0 */
6491 mono_mb_emit_stloc (mb, 0);
6492 mono_mb_emit_ldloc (mb, 0);
6493 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6495 /* allocate space for the native struct and store the address */
6496 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6497 mono_mb_emit_byte (mb, CEE_PREFIX1);
6498 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6499 mono_mb_emit_stloc (mb, conv_arg);
6502 /* Need to store the original buffer so we can free it later */
6503 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6504 mono_mb_emit_ldloc (mb, conv_arg);
6505 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6508 /* set the src_ptr */
6509 mono_mb_emit_ldloc (mb, 0);
6510 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6511 mono_mb_emit_stloc (mb, 0);
6514 mono_mb_emit_ldloc (mb, conv_arg);
6515 mono_mb_emit_stloc (mb, 1);
6517 /* emit valuetype conversion code */
6518 emit_struct_conv (mb, klass, FALSE);
6520 mono_mb_patch_branch (mb, pos);
6524 case MARSHAL_ACTION_CONV_OUT:
6525 if (klass == mono_defaults.stringbuilder_class) {
6527 MonoMarshalNative encoding;
6528 MonoMarshalConv conv;
6530 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6531 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6533 g_assert (encoding != -1);
6536 g_assert ((t->attrs & PARAM_ATTRIBUTE_OUT));
6540 mono_mb_emit_ldarg (mb, argnum);
6541 mono_mb_emit_ldloc (mb, conv_arg);
6544 case MONO_NATIVE_LPWSTR:
6545 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
6547 case MONO_NATIVE_LPSTR:
6548 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6551 g_assert_not_reached ();
6554 mono_mb_emit_byte (mb, CEE_STIND_REF);
6556 mono_mb_emit_ldarg (mb, argnum);
6557 mono_mb_emit_ldloc (mb, conv_arg);
6559 mono_mb_emit_icall (mb, conv_to_icall (conv));
6563 mono_mb_emit_ldloc (mb, conv_arg);
6564 mono_mb_emit_icall (mb, mono_marshal_free);
6569 if (klass->delegate) {
6571 mono_mb_emit_ldarg (mb, argnum);
6572 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6573 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6574 mono_mb_emit_ldloc (mb, conv_arg);
6575 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6576 mono_mb_emit_byte (mb, CEE_STIND_REF);
6581 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6582 /* allocate a new object */
6583 mono_mb_emit_ldarg (mb, argnum);
6584 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6585 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6586 mono_mb_emit_byte (mb, CEE_STIND_REF);
6589 /* dst = *argument */
6590 mono_mb_emit_ldarg (mb, argnum);
6593 mono_mb_emit_byte (mb, CEE_LDIND_I);
6595 mono_mb_emit_stloc (mb, 1);
6597 mono_mb_emit_ldloc (mb, 1);
6598 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6600 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6601 mono_mb_emit_ldloc (mb, 1);
6602 mono_mb_emit_icon (mb, sizeof (MonoObject));
6603 mono_mb_emit_byte (mb, CEE_ADD);
6604 mono_mb_emit_stloc (mb, 1);
6606 /* src = tmp_locals [i] */
6607 mono_mb_emit_ldloc (mb, conv_arg);
6608 mono_mb_emit_stloc (mb, 0);
6610 /* emit valuetype conversion code */
6611 emit_struct_conv (mb, klass, TRUE);
6613 /* Free the structure returned by the native code */
6614 emit_struct_free (mb, klass, conv_arg);
6616 if (m->orig_conv_args [argnum]) {
6618 * If the native function changed the pointer, then free
6619 * the original structure plus the new pointer.
6621 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6622 mono_mb_emit_ldloc (mb, conv_arg);
6623 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6625 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6626 g_assert (m->orig_conv_args [argnum]);
6628 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6631 mono_mb_emit_ldloc (mb, conv_arg);
6632 mono_mb_emit_icall (mb, mono_marshal_free);
6634 mono_mb_patch_branch (mb, pos2);
6638 /* Free the original structure passed to native code */
6639 emit_struct_free (mb, klass, conv_arg);
6641 mono_mb_patch_branch (mb, pos);
6644 case MARSHAL_ACTION_PUSH:
6646 mono_mb_emit_ldloc_addr (mb, conv_arg);
6648 mono_mb_emit_ldloc (mb, conv_arg);
6651 case MARSHAL_ACTION_CONV_RESULT:
6652 if (klass->delegate) {
6653 g_assert (!t->byref);
6654 mono_mb_emit_stloc (mb, 0);
6655 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6656 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6657 mono_mb_emit_ldloc (mb, 0);
6658 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6659 mono_mb_emit_stloc (mb, 3);
6662 mono_mb_emit_stloc (mb, 0);
6664 /* Make a copy since emit_conv modifies local 0 */
6665 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6666 mono_mb_emit_ldloc (mb, 0);
6667 mono_mb_emit_stloc (mb, loc);
6669 mono_mb_emit_byte (mb, CEE_LDNULL);
6670 mono_mb_emit_stloc (mb, 3);
6672 mono_mb_emit_ldloc (mb, 0);
6673 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6675 /* allocate result object */
6677 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6678 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6679 mono_mb_emit_stloc (mb, 3);
6683 mono_mb_emit_ldloc (mb, 3);
6684 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6685 mono_mb_emit_stloc (mb, 1);
6687 /* emit conversion code */
6688 emit_struct_conv (mb, klass, TRUE);
6690 emit_struct_free (mb, klass, loc);
6692 /* Free the pointer allocated by unmanaged code */
6693 mono_mb_emit_ldloc (mb, loc);
6694 mono_mb_emit_icall (mb, mono_marshal_free);
6695 mono_mb_patch_branch (mb, pos);
6699 case MARSHAL_ACTION_MANAGED_CONV_IN:
6700 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6702 if (klass->delegate) {
6703 g_assert (!t->byref);
6704 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6705 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6706 mono_mb_emit_ldarg (mb, argnum);
6707 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6708 mono_mb_emit_stloc (mb, conv_arg);
6712 if (klass == mono_defaults.stringbuilder_class) {
6713 MonoMarshalNative encoding;
6715 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6718 g_assert (encoding == MONO_NATIVE_LPSTR);
6720 g_assert (!t->byref);
6721 g_assert (encoding != -1);
6723 mono_mb_emit_ldarg (mb, argnum);
6724 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6725 mono_mb_emit_stloc (mb, conv_arg);
6729 /* The class can not have an automatic layout */
6730 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6731 mono_mb_emit_auto_layout_exception (mb, klass);
6735 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6736 mono_mb_emit_byte (mb, CEE_LDNULL);
6737 mono_mb_emit_stloc (mb, conv_arg);
6742 mono_mb_emit_ldarg (mb, argnum);
6746 /* Check for NULL and raise an exception */
6747 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6749 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6751 mono_mb_patch_branch (mb, pos2);
6752 mono_mb_emit_ldarg (mb, argnum);
6753 mono_mb_emit_byte (mb, CEE_LDIND_I);
6756 mono_mb_emit_stloc (mb, 0);
6758 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6759 mono_mb_emit_stloc (mb, conv_arg);
6761 mono_mb_emit_ldloc (mb, 0);
6762 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6764 /* Create and set dst */
6765 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6766 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6767 mono_mb_emit_stloc (mb, conv_arg);
6768 mono_mb_emit_ldloc (mb, conv_arg);
6769 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6770 mono_mb_emit_stloc (mb, 1);
6772 /* emit valuetype conversion code */
6773 emit_struct_conv (mb, klass, TRUE);
6775 mono_mb_patch_branch (mb, pos);
6778 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6780 /* Check for null */
6781 mono_mb_emit_ldloc (mb, conv_arg);
6782 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6783 mono_mb_emit_ldarg (mb, argnum);
6784 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6785 mono_mb_emit_byte (mb, CEE_STIND_REF);
6786 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6788 mono_mb_patch_branch (mb, pos);
6791 mono_mb_emit_ldloc (mb, conv_arg);
6792 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6793 mono_mb_emit_stloc (mb, 0);
6795 /* Allocate and set dest */
6796 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6797 mono_mb_emit_byte (mb, CEE_CONV_I);
6798 mono_mb_emit_icall (mb, mono_marshal_alloc);
6799 mono_mb_emit_stloc (mb, 1);
6801 /* Update argument pointer */
6802 mono_mb_emit_ldarg (mb, argnum);
6803 mono_mb_emit_ldloc (mb, 1);
6804 mono_mb_emit_byte (mb, CEE_STIND_I);
6806 /* emit valuetype conversion code */
6807 emit_struct_conv (mb, klass, FALSE);
6809 mono_mb_patch_branch (mb, pos2);
6811 /* byval [Out] marshalling */
6813 /* FIXME: Handle null */
6816 mono_mb_emit_ldloc (mb, conv_arg);
6817 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6818 mono_mb_emit_stloc (mb, 0);
6821 mono_mb_emit_ldarg (mb, argnum);
6822 mono_mb_emit_stloc (mb, 1);
6824 /* emit valuetype conversion code */
6825 emit_struct_conv (mb, klass, FALSE);
6829 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6830 if (klass->delegate) {
6831 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6832 mono_mb_emit_stloc (mb, 3);
6836 /* The class can not have an automatic layout */
6837 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6838 mono_mb_emit_auto_layout_exception (mb, klass);
6842 mono_mb_emit_stloc (mb, 0);
6843 /* Check for null */
6844 mono_mb_emit_ldloc (mb, 0);
6845 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6846 mono_mb_emit_byte (mb, CEE_LDNULL);
6847 mono_mb_emit_stloc (mb, 3);
6848 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6850 mono_mb_patch_branch (mb, pos);
6853 mono_mb_emit_ldloc (mb, 0);
6854 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6855 mono_mb_emit_stloc (mb, 0);
6857 /* Allocate and set dest */
6858 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6859 mono_mb_emit_byte (mb, CEE_CONV_I);
6860 mono_mb_emit_icall (mb, mono_marshal_alloc);
6861 mono_mb_emit_byte (mb, CEE_DUP);
6862 mono_mb_emit_stloc (mb, 1);
6863 mono_mb_emit_stloc (mb, 3);
6865 emit_struct_conv (mb, klass, FALSE);
6867 mono_mb_patch_branch (mb, pos2);
6871 g_assert_not_reached ();
6878 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6879 MonoMarshalSpec *spec,
6880 int conv_arg, MonoType **conv_arg_type,
6881 MarshalAction action)
6883 MonoMethodBuilder *mb = m->mb;
6884 static MonoMethod *get_object_for_native_variant = NULL;
6885 static MonoMethod *get_native_variant_for_object = NULL;
6887 mono_init_com_types ();
6889 if (!get_object_for_native_variant)
6890 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6891 g_assert (get_object_for_native_variant);
6893 if (!get_native_variant_for_object)
6894 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6895 g_assert (get_native_variant_for_object);
6898 case MARSHAL_ACTION_CONV_IN: {
6899 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6902 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6904 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6906 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6909 mono_mb_emit_ldarg (mb, argnum);
6911 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6912 mono_mb_emit_ldloc_addr (mb, conv_arg);
6913 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6917 case MARSHAL_ACTION_CONV_OUT: {
6918 static MonoMethod *variant_clear = NULL;
6921 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6922 g_assert (variant_clear);
6925 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6926 mono_mb_emit_ldarg (mb, argnum);
6927 mono_mb_emit_ldloc_addr (mb, conv_arg);
6928 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6929 mono_mb_emit_byte (mb, CEE_STIND_REF);
6932 mono_mb_emit_ldloc_addr (mb, conv_arg);
6933 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6937 case MARSHAL_ACTION_PUSH:
6939 mono_mb_emit_ldloc_addr (mb, conv_arg);
6941 mono_mb_emit_ldloc (mb, conv_arg);
6944 case MARSHAL_ACTION_CONV_RESULT: {
6945 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6946 mono_mb_emit_exception_marshal_directive (mb, msg);
6950 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6951 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6954 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6956 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6958 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6962 mono_mb_emit_ldarg (mb, argnum);
6964 mono_mb_emit_ldarg_addr (mb, argnum);
6965 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6966 mono_mb_emit_stloc (mb, conv_arg);
6970 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6971 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6972 mono_mb_emit_ldloc (mb, conv_arg);
6973 mono_mb_emit_ldarg (mb, argnum);
6974 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6979 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6980 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6981 mono_mb_emit_exception_marshal_directive (mb, msg);
6986 g_assert_not_reached ();
6993 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6995 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6996 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6998 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
7000 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
7011 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7012 MonoMarshalSpec *spec,
7013 int conv_arg, MonoType **conv_arg_type,
7014 MarshalAction action)
7016 MonoMethodBuilder *mb = m->mb;
7017 MonoClass *klass = mono_class_from_mono_type (t);
7018 gboolean need_convert, need_free;
7019 MonoMarshalNative encoding;
7021 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7024 case MARSHAL_ACTION_CONV_IN:
7025 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7026 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7028 if (klass->element_class->blittable) {
7029 mono_mb_emit_ldarg (mb, argnum);
7031 mono_mb_emit_byte (mb, CEE_LDIND_I);
7032 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7033 mono_mb_emit_stloc (mb, conv_arg);
7036 guint32 label1, label2, label3;
7037 int index_var, src_var, dest_ptr, esize;
7038 MonoMarshalConv conv;
7039 gboolean is_string = FALSE;
7041 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7043 eklass = klass->element_class;
7045 if (eklass == mono_defaults.string_class) {
7047 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7049 else if (eklass == mono_defaults.stringbuilder_class) {
7051 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7056 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7057 mono_mb_emit_ldarg (mb, argnum);
7059 mono_mb_emit_byte (mb, CEE_LDIND_I);
7060 mono_mb_emit_stloc (mb, src_var);
7063 mono_mb_emit_ldloc (mb, src_var);
7064 mono_mb_emit_stloc (mb, conv_arg);
7065 mono_mb_emit_ldloc (mb, src_var);
7066 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7070 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7071 MonoException *exc = mono_get_exception_not_implemented (msg);
7072 g_warning ("%s", msg);
7074 mono_raise_exception (exc);
7079 esize = sizeof (gpointer);
7080 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
7081 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7083 esize = mono_class_native_size (eklass, NULL);
7085 /* allocate space for the native struct and store the address */
7086 mono_mb_emit_icon (mb, esize);
7087 mono_mb_emit_ldloc (mb, src_var);
7088 mono_mb_emit_byte (mb, CEE_LDLEN);
7090 if (eklass == mono_defaults.string_class) {
7091 /* Make the array bigger for the terminating null */
7092 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7093 mono_mb_emit_byte (mb, CEE_ADD);
7095 mono_mb_emit_byte (mb, CEE_MUL);
7096 mono_mb_emit_byte (mb, CEE_PREFIX1);
7097 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7098 mono_mb_emit_stloc (mb, conv_arg);
7100 mono_mb_emit_ldloc (mb, conv_arg);
7101 mono_mb_emit_stloc (mb, dest_ptr);
7103 /* Emit marshalling loop */
7104 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7105 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7106 mono_mb_emit_stloc (mb, index_var);
7107 label2 = mono_mb_get_label (mb);
7108 mono_mb_emit_ldloc (mb, index_var);
7109 mono_mb_emit_ldloc (mb, src_var);
7110 mono_mb_emit_byte (mb, CEE_LDLEN);
7111 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7113 /* Emit marshalling code */
7116 mono_mb_emit_ldloc (mb, dest_ptr);
7117 mono_mb_emit_ldloc (mb, src_var);
7118 mono_mb_emit_ldloc (mb, index_var);
7119 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7120 mono_mb_emit_icall (mb, conv_to_icall (conv));
7121 mono_mb_emit_byte (mb, CEE_STIND_I);
7123 /* set the src_ptr */
7124 mono_mb_emit_ldloc (mb, src_var);
7125 mono_mb_emit_ldloc (mb, index_var);
7126 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7127 mono_mb_emit_stloc (mb, 0);
7130 mono_mb_emit_ldloc (mb, dest_ptr);
7131 mono_mb_emit_stloc (mb, 1);
7133 /* emit valuetype conversion code */
7134 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : -1);
7137 mono_mb_emit_add_to_local (mb, index_var, 1);
7138 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7140 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7142 mono_mb_patch_branch (mb, label3);
7144 if (eklass == mono_defaults.string_class) {
7145 /* Null terminate */
7146 mono_mb_emit_ldloc (mb, dest_ptr);
7147 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7148 mono_mb_emit_byte (mb, CEE_STIND_REF);
7151 mono_mb_patch_branch (mb, label1);
7156 case MARSHAL_ACTION_CONV_OUT:
7157 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7158 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);
7159 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7162 if (need_convert || need_free) {
7163 /* FIXME: Optimize blittable case */
7165 guint32 label1, label2, label3;
7166 int index_var, src_ptr, loc, esize;
7168 eklass = klass->element_class;
7169 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7170 esize = sizeof (gpointer);
7171 else if (eklass == mono_defaults.char_class)
7172 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7174 esize = mono_class_native_size (eklass, NULL);
7175 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7176 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7179 mono_mb_emit_ldarg (mb, argnum);
7181 mono_mb_emit_byte (mb, CEE_LDIND_I);
7182 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7184 mono_mb_emit_ldloc (mb, conv_arg);
7185 mono_mb_emit_stloc (mb, src_ptr);
7187 /* Emit marshalling loop */
7188 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7189 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7190 mono_mb_emit_stloc (mb, index_var);
7191 label2 = mono_mb_get_label (mb);
7192 mono_mb_emit_ldloc (mb, index_var);
7193 mono_mb_emit_ldarg (mb, argnum);
7195 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7196 mono_mb_emit_byte (mb, CEE_LDLEN);
7197 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7199 /* Emit marshalling code */
7201 if (eklass == mono_defaults.stringbuilder_class) {
7202 gboolean need_free2;
7203 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7205 g_assert (conv != -1);
7208 mono_mb_emit_ldarg (mb, argnum);
7210 mono_mb_emit_byte (mb, CEE_LDIND_I);
7211 mono_mb_emit_ldloc (mb, index_var);
7212 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7215 mono_mb_emit_ldloc (mb, src_ptr);
7216 mono_mb_emit_byte (mb, CEE_LDIND_I);
7218 mono_mb_emit_icall (mb, conv_to_icall (conv));
7222 mono_mb_emit_ldloc (mb, src_ptr);
7223 mono_mb_emit_byte (mb, CEE_LDIND_I);
7225 mono_mb_emit_icall (mb, mono_marshal_free);
7228 else if (eklass == mono_defaults.string_class) {
7231 mono_mb_emit_ldloc (mb, src_ptr);
7232 mono_mb_emit_byte (mb, CEE_LDIND_I);
7234 mono_mb_emit_icall (mb, mono_marshal_free);
7239 /* set the src_ptr */
7240 mono_mb_emit_ldloc (mb, src_ptr);
7241 mono_mb_emit_stloc (mb, 0);
7244 mono_mb_emit_ldarg (mb, argnum);
7246 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7247 mono_mb_emit_ldloc (mb, index_var);
7248 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7249 mono_mb_emit_stloc (mb, 1);
7251 /* emit valuetype conversion code */
7252 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : -1);
7256 mono_mb_emit_ldloc (mb, src_ptr);
7257 mono_mb_emit_stloc (mb, loc);
7258 mono_mb_emit_ldloc (mb, loc);
7260 emit_struct_free (mb, eklass, loc);
7264 mono_mb_emit_add_to_local (mb, index_var, 1);
7265 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7267 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7269 mono_mb_patch_branch (mb, label1);
7270 mono_mb_patch_branch (mb, label3);
7273 if (klass->element_class->blittable) {
7274 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
7276 mono_mb_emit_ldarg (mb, argnum);
7277 mono_mb_emit_ldloc (mb, conv_arg);
7278 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
7283 case MARSHAL_ACTION_PUSH:
7285 mono_mb_emit_ldloc_addr (mb, conv_arg);
7287 mono_mb_emit_ldloc (mb, conv_arg);
7290 case MARSHAL_ACTION_CONV_RESULT:
7291 /* fixme: we need conversions here */
7292 mono_mb_emit_stloc (mb, 3);
7295 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7297 guint32 label1, label2, label3;
7298 int index_var, src_ptr, loc, esize, param_num, num_elem;
7299 MonoMarshalConv conv;
7300 gboolean is_string = FALSE;
7302 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7303 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7306 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7307 mono_mb_emit_exception_marshal_directive (mb, msg);
7311 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7312 mono_mb_emit_exception_marshal_directive (mb, msg);
7315 if (spec->native != MONO_NATIVE_LPARRAY) {
7316 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7317 mono_mb_emit_exception_marshal_directive (mb, msg);
7321 /* FIXME: t is from the method which is wrapped, not the delegate type */
7322 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7324 param_num = spec->data.array_data.param_num;
7325 num_elem = spec->data.array_data.num_elem;
7326 if (spec->data.array_data.elem_mult == 0)
7327 /* param_num is not specified */
7330 if (param_num == -1) {
7331 if (num_elem <= 0) {
7332 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7333 mono_mb_emit_exception_marshal_directive (mb, msg);
7338 /* FIXME: Optimize blittable case */
7340 eklass = klass->element_class;
7341 if (eklass == mono_defaults.string_class) {
7343 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7345 else if (eklass == mono_defaults.stringbuilder_class) {
7347 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7352 mono_marshal_load_type_info (eklass);
7355 esize = sizeof (gpointer);
7357 esize = mono_class_native_size (eklass, NULL);
7358 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7359 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7361 mono_mb_emit_byte (mb, CEE_LDNULL);
7362 mono_mb_emit_stloc (mb, conv_arg);
7364 /* Check param index */
7365 if (param_num != -1) {
7366 if (param_num >= m->sig->param_count) {
7367 char *msg = g_strdup ("Array size control parameter index is out of range.");
7368 mono_mb_emit_exception_marshal_directive (mb, msg);
7371 switch (m->sig->params [param_num]->type) {
7384 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7385 mono_mb_emit_exception_marshal_directive (mb, msg);
7392 mono_mb_emit_ldarg (mb, argnum);
7393 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7395 mono_mb_emit_ldarg (mb, argnum);
7396 mono_mb_emit_stloc (mb, src_ptr);
7398 /* Create managed array */
7400 * The LPArray marshalling spec says that sometimes param_num starts
7401 * from 1, sometimes it starts from 0. But MS seems to allways start
7405 if (param_num == -1) {
7406 mono_mb_emit_icon (mb, num_elem);
7408 mono_mb_emit_ldarg (mb, param_num);
7410 mono_mb_emit_icon (mb, num_elem);
7411 mono_mb_emit_byte (mb, CEE_ADD);
7413 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
7416 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7417 mono_mb_emit_stloc (mb, conv_arg);
7419 if (eklass->blittable) {
7420 mono_mb_emit_ldloc (mb, conv_arg);
7421 mono_mb_emit_byte (mb, CEE_CONV_I);
7422 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7423 mono_mb_emit_byte (mb, CEE_ADD);
7424 mono_mb_emit_ldarg (mb, argnum);
7425 mono_mb_emit_ldloc (mb, conv_arg);
7426 mono_mb_emit_byte (mb, CEE_LDLEN);
7427 mono_mb_emit_icon (mb, esize);
7428 mono_mb_emit_byte (mb, CEE_MUL);
7429 mono_mb_emit_byte (mb, CEE_PREFIX1);
7430 mono_mb_emit_byte (mb, CEE_CPBLK);
7434 /* Emit marshalling loop */
7435 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7436 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7437 mono_mb_emit_stloc (mb, index_var);
7438 label2 = mono_mb_get_label (mb);
7439 mono_mb_emit_ldloc (mb, index_var);
7440 mono_mb_emit_ldloc (mb, conv_arg);
7441 mono_mb_emit_byte (mb, CEE_LDLEN);
7442 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7444 /* Emit marshalling code */
7446 g_assert (conv != -1);
7448 mono_mb_emit_ldloc (mb, conv_arg);
7449 mono_mb_emit_ldloc (mb, index_var);
7451 mono_mb_emit_ldloc (mb, src_ptr);
7452 mono_mb_emit_byte (mb, CEE_LDIND_I);
7454 mono_mb_emit_icall (mb, conv_to_icall (conv));
7455 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7458 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7459 mono_mb_emit_exception_marshal_directive (mb, msg);
7463 mono_mb_emit_add_to_local (mb, index_var, 1);
7464 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7466 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7468 mono_mb_patch_branch (mb, label1);
7469 mono_mb_patch_branch (mb, label3);
7473 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7475 guint32 label1, label2, label3;
7476 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7477 MonoMarshalConv conv;
7478 gboolean is_string = FALSE;
7481 /* Already handled in CONV_IN */
7484 /* These are already checked in CONV_IN */
7485 g_assert (!t->byref);
7486 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7487 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7489 param_num = spec->data.array_data.param_num;
7490 num_elem = spec->data.array_data.num_elem;
7492 if (spec->data.array_data.elem_mult == 0)
7493 /* param_num is not specified */
7496 if (param_num == -1) {
7497 if (num_elem <= 0) {
7498 g_assert_not_reached ();
7502 /* FIXME: Optimize blittable case */
7504 eklass = klass->element_class;
7505 if (eklass == mono_defaults.string_class) {
7507 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7509 else if (eklass == mono_defaults.stringbuilder_class) {
7511 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7516 mono_marshal_load_type_info (eklass);
7519 esize = sizeof (gpointer);
7521 esize = mono_class_native_size (eklass, NULL);
7523 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7524 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7527 mono_mb_emit_ldloc (mb, conv_arg);
7528 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7530 mono_mb_emit_ldarg (mb, argnum);
7531 mono_mb_emit_stloc (mb, dest_ptr);
7533 if (eklass->blittable) {
7535 mono_mb_emit_ldarg (mb, argnum);
7537 mono_mb_emit_ldloc (mb, conv_arg);
7538 mono_mb_emit_byte (mb, CEE_CONV_I);
7539 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7540 mono_mb_emit_byte (mb, CEE_ADD);
7542 mono_mb_emit_ldloc (mb, conv_arg);
7543 mono_mb_emit_byte (mb, CEE_LDLEN);
7544 mono_mb_emit_icon (mb, esize);
7545 mono_mb_emit_byte (mb, CEE_MUL);
7546 mono_mb_emit_byte (mb, CEE_PREFIX1);
7547 mono_mb_emit_byte (mb, CEE_CPBLK);
7551 /* Emit marshalling loop */
7552 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7553 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7554 mono_mb_emit_stloc (mb, index_var);
7555 label2 = mono_mb_get_label (mb);
7556 mono_mb_emit_ldloc (mb, index_var);
7557 mono_mb_emit_ldloc (mb, conv_arg);
7558 mono_mb_emit_byte (mb, CEE_LDLEN);
7559 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7561 /* Emit marshalling code */
7563 g_assert (conv != -1);
7566 mono_mb_emit_ldloc (mb, dest_ptr);
7569 mono_mb_emit_ldloc (mb, conv_arg);
7570 mono_mb_emit_ldloc (mb, index_var);
7572 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7574 mono_mb_emit_icall (mb, conv_to_icall (conv));
7575 mono_mb_emit_byte (mb, CEE_STIND_I);
7578 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7579 mono_mb_emit_exception_marshal_directive (mb, msg);
7583 mono_mb_emit_add_to_local (mb, index_var, 1);
7584 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7586 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7588 mono_mb_patch_branch (mb, label1);
7589 mono_mb_patch_branch (mb, label3);
7593 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7595 guint32 label1, label2, label3;
7596 int index_var, src, dest, esize;
7597 MonoMarshalConv conv = -1;
7598 gboolean is_string = FALSE;
7600 g_assert (!t->byref);
7602 eklass = klass->element_class;
7604 mono_marshal_load_type_info (eklass);
7606 if (eklass == mono_defaults.string_class) {
7608 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7611 g_assert_not_reached ();
7615 esize = sizeof (gpointer);
7616 else if (eklass == mono_defaults.char_class)
7617 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7619 esize = mono_class_native_size (eklass, NULL);
7621 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7622 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7624 mono_mb_emit_stloc (mb, src);
7625 mono_mb_emit_ldloc (mb, src);
7626 mono_mb_emit_stloc (mb, 3);
7628 /* Check for null */
7629 mono_mb_emit_ldloc (mb, src);
7630 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7632 /* Allocate native array */
7633 mono_mb_emit_icon (mb, esize);
7634 mono_mb_emit_ldloc (mb, src);
7635 mono_mb_emit_byte (mb, CEE_LDLEN);
7637 if (eklass == mono_defaults.string_class) {
7638 /* Make the array bigger for the terminating null */
7639 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7640 mono_mb_emit_byte (mb, CEE_ADD);
7642 mono_mb_emit_byte (mb, CEE_MUL);
7643 mono_mb_emit_icall (mb, mono_marshal_alloc);
7644 mono_mb_emit_stloc (mb, dest);
7645 mono_mb_emit_ldloc (mb, dest);
7646 mono_mb_emit_stloc (mb, 3);
7648 /* Emit marshalling loop */
7649 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7650 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7651 mono_mb_emit_stloc (mb, index_var);
7652 label2 = mono_mb_get_label (mb);
7653 mono_mb_emit_ldloc (mb, index_var);
7654 mono_mb_emit_ldloc (mb, src);
7655 mono_mb_emit_byte (mb, CEE_LDLEN);
7656 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7658 /* Emit marshalling code */
7660 g_assert (conv != -1);
7663 mono_mb_emit_ldloc (mb, dest);
7666 mono_mb_emit_ldloc (mb, src);
7667 mono_mb_emit_ldloc (mb, index_var);
7669 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7671 mono_mb_emit_icall (mb, conv_to_icall (conv));
7672 mono_mb_emit_byte (mb, CEE_STIND_I);
7675 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7676 mono_mb_emit_exception_marshal_directive (mb, msg);
7680 mono_mb_emit_add_to_local (mb, index_var, 1);
7681 mono_mb_emit_add_to_local (mb, dest, esize);
7683 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7685 mono_mb_patch_branch (mb, label3);
7686 mono_mb_patch_branch (mb, label1);
7690 g_assert_not_reached ();
7697 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7698 MonoMarshalSpec *spec,
7699 int conv_arg, MonoType **conv_arg_type,
7700 MarshalAction action)
7702 MonoMethodBuilder *mb = m->mb;
7705 case MARSHAL_ACTION_CONV_IN: {
7706 MonoType *local_type;
7708 guint8 ldc_op = CEE_LDC_I4_1;
7711 local_type = &mono_defaults.int32_class->byval_arg;
7713 switch (spec->native) {
7714 case MONO_NATIVE_I1:
7715 case MONO_NATIVE_U1:
7716 local_type = &mono_defaults.byte_class->byval_arg;
7718 case MONO_NATIVE_VARIANTBOOL:
7719 local_type = &mono_defaults.int16_class->byval_arg;
7720 ldc_op = CEE_LDC_I4_M1;
7722 case MONO_NATIVE_BOOLEAN:
7723 local_type = &mono_defaults.int32_class->byval_arg;
7726 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7727 local_type = &mono_defaults.int32_class->byval_arg;
7732 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7734 *conv_arg_type = local_type;
7735 conv_arg = mono_mb_add_local (mb, local_type);
7737 mono_mb_emit_ldarg (mb, argnum);
7739 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7740 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7741 mono_mb_emit_byte (mb, ldc_op);
7742 mono_mb_emit_stloc (mb, conv_arg);
7743 mono_mb_patch_branch (mb, label_false);
7748 case MARSHAL_ACTION_CONV_OUT:
7750 int label_false, label_end;
7754 mono_mb_emit_ldarg (mb, argnum);
7755 mono_mb_emit_ldloc (mb, conv_arg);
7757 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7758 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7760 label_end = mono_mb_emit_branch (mb, CEE_BR);
7761 mono_mb_patch_branch (mb, label_false);
7762 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7763 mono_mb_patch_branch (mb, label_end);
7765 mono_mb_emit_byte (mb, CEE_STIND_I1);
7769 case MARSHAL_ACTION_PUSH:
7771 mono_mb_emit_ldloc_addr (mb, conv_arg);
7773 mono_mb_emit_ldloc (mb, conv_arg);
7775 mono_mb_emit_ldarg (mb, argnum);
7778 case MARSHAL_ACTION_CONV_RESULT:
7779 /* maybe we need to make sure that it fits within 8 bits */
7780 mono_mb_emit_stloc (mb, 3);
7783 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7784 MonoClass* conv_arg_class = mono_defaults.int32_class;
7785 guint8 ldop = CEE_LDIND_I4;
7786 int label_null, label_false;
7788 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7791 switch (spec->native) {
7792 case MONO_NATIVE_I1:
7793 case MONO_NATIVE_U1:
7794 conv_arg_class = mono_defaults.byte_class;
7795 ldop = CEE_LDIND_I1;
7797 case MONO_NATIVE_VARIANTBOOL:
7798 conv_arg_class = mono_defaults.int16_class;
7799 ldop = CEE_LDIND_I2;
7801 case MONO_NATIVE_BOOLEAN:
7804 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7809 *conv_arg_type = &conv_arg_class->this_arg;
7811 *conv_arg_type = &conv_arg_class->byval_arg;
7814 mono_mb_emit_ldarg (mb, argnum);
7818 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7819 mono_mb_emit_ldarg (mb, argnum);
7820 mono_mb_emit_byte (mb, ldop);
7824 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7825 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7826 mono_mb_emit_stloc (mb, conv_arg);
7827 mono_mb_patch_branch (mb, label_false);
7830 mono_mb_patch_branch (mb, label_null);
7834 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7835 guint8 stop = CEE_STIND_I4;
7836 guint8 ldc_op = CEE_LDC_I4_1;
7837 int label_null,label_false, label_end;;
7842 switch (spec->native) {
7843 case MONO_NATIVE_I1:
7844 case MONO_NATIVE_U1:
7845 stop = CEE_STIND_I1;
7847 case MONO_NATIVE_VARIANTBOOL:
7848 stop = CEE_STIND_I2;
7849 ldc_op = CEE_LDC_I4_M1;
7857 mono_mb_emit_ldarg (mb, argnum);
7858 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7860 mono_mb_emit_ldarg (mb, argnum);
7861 mono_mb_emit_ldloc (mb, conv_arg);
7863 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7864 mono_mb_emit_byte (mb, ldc_op);
7865 label_end = mono_mb_emit_branch (mb, CEE_BR);
7867 mono_mb_patch_branch (mb, label_false);
7868 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7869 mono_mb_patch_branch (mb, label_end);
7871 mono_mb_emit_byte (mb, stop);
7872 mono_mb_patch_branch (mb, label_null);
7877 g_assert_not_reached ();
7884 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7885 MonoMarshalSpec *spec, int conv_arg,
7886 MonoType **conv_arg_type, MarshalAction action)
7888 MonoMethodBuilder *mb = m->mb;
7891 case MARSHAL_ACTION_CONV_IN:
7892 /* MS seems to allow this in some cases, ie. bxc #158 */
7894 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7895 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7896 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7901 case MARSHAL_ACTION_PUSH:
7902 mono_mb_emit_ldarg (mb, argnum);
7905 case MARSHAL_ACTION_CONV_RESULT:
7906 /* no conversions necessary */
7907 mono_mb_emit_stloc (mb, 3);
7918 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7919 MonoMarshalSpec *spec, int conv_arg,
7920 MonoType **conv_arg_type, MarshalAction action)
7922 MonoMethodBuilder *mb = m->mb;
7925 case MARSHAL_ACTION_PUSH:
7926 /* fixme: dont know how to marshal that. We cant simply
7927 * convert it to a one byte UTF8 character, because an
7928 * unicode character may need more that one byte in UTF8 */
7929 mono_mb_emit_ldarg (mb, argnum);
7932 case MARSHAL_ACTION_CONV_RESULT:
7933 /* fixme: we need conversions here */
7934 mono_mb_emit_stloc (mb, 3);
7945 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7946 MonoMarshalSpec *spec, int conv_arg,
7947 MonoType **conv_arg_type, MarshalAction action)
7949 MonoMethodBuilder *mb = m->mb;
7952 case MARSHAL_ACTION_PUSH:
7953 mono_mb_emit_ldarg (mb, argnum);
7956 case MARSHAL_ACTION_CONV_RESULT:
7957 /* no conversions necessary */
7958 mono_mb_emit_stloc (mb, 3);
7969 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7970 MonoMarshalSpec *spec, int conv_arg,
7971 MonoType **conv_arg_type, MarshalAction action)
7973 /* Ensure that we have marshalling info for this param */
7974 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7976 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7977 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7979 if (spec && spec->native == MONO_NATIVE_ASANY)
7980 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7983 case MONO_TYPE_VALUETYPE:
7984 if (t->data.klass == mono_defaults.handleref_class)
7985 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7987 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7988 case MONO_TYPE_STRING:
7989 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7990 case MONO_TYPE_CLASS:
7991 case MONO_TYPE_OBJECT:
7992 if (spec && spec->native == MONO_NATIVE_STRUCT)
7993 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7996 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7997 spec->native == MONO_NATIVE_IDISPATCH ||
7998 spec->native == MONO_NATIVE_INTERFACE))
7999 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8000 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
8001 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
8002 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
8003 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8006 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
8007 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8008 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8010 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8011 case MONO_TYPE_ARRAY:
8012 case MONO_TYPE_SZARRAY:
8013 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8014 case MONO_TYPE_BOOLEAN:
8015 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8017 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8018 case MONO_TYPE_CHAR:
8019 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8032 case MONO_TYPE_FNPTR:
8033 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8034 case MONO_TYPE_GENERICINST:
8035 if (mono_type_generic_inst_is_valuetype (t))
8036 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8038 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8045 * mono_marshal_emit_native_wrapper:
8046 * @image: the image to use for looking up custom marshallers
8047 * @sig: The signature of the native function
8048 * @piinfo: Marshalling information
8049 * @mspecs: Marshalling information
8050 * @aot: whenever the created method will be compiled by the AOT compiler
8051 * @method: if non-NULL, the pinvoke method to call
8052 * @check_exceptions: Whenever to check for pending exceptions after the native call
8054 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8057 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
8059 EmitMarshalContext m;
8060 MonoMethodSignature *csig;
8062 int i, argnum, *tmp_locals;
8064 static MonoMethodSignature *get_last_error_sig = NULL;
8069 /* we copy the signature, so that we can set pinvoke to 0 */
8070 csig = signature_dup (mb->method->klass->image, sig);
8075 /* we allocate local for use with emit_struct_conv() */
8076 /* allocate local 0 (pointer) src_ptr */
8077 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8078 /* allocate local 1 (pointer) dst_ptr */
8079 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8080 /* allocate local 2 (boolean) delete_old */
8081 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8083 /* delete_old = FALSE */
8084 mono_mb_emit_icon (mb, 0);
8085 mono_mb_emit_stloc (mb, 2);
8087 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8088 /* allocate local 3 to store the return value */
8089 mono_mb_add_local (mb, sig->ret);
8092 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8093 /* Return type custom marshaling */
8095 * Since we can't determine the return type of the unmanaged function,
8096 * we assume it returns a pointer, and pass that pointer to
8097 * MarshalNativeToManaged.
8099 csig->ret = &mono_defaults.int_class->byval_arg;
8102 /* we first do all conversions */
8103 tmp_locals = alloca (sizeof (int) * sig->param_count);
8104 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8106 for (i = 0; i < sig->param_count; i ++) {
8107 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8110 /* push all arguments */
8113 mono_mb_emit_byte (mb, CEE_LDARG_0);
8115 for (i = 0; i < sig->param_count; i++) {
8116 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8119 /* call the native method */
8120 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8122 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8124 g_assert_not_reached ();
8129 /* Reuse the ICALL_ADDR opcode for pinvokes too */
8130 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8131 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8132 mono_mb_emit_calli (mb, csig);
8134 mono_mb_emit_native_call (mb, csig, func);
8138 /* Set LastError if needed */
8139 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8140 if (!get_last_error_sig) {
8141 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8142 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8143 get_last_error_sig->pinvoke = 1;
8148 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8149 * clobber its value.
8151 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8152 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8154 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8158 /* convert the result */
8159 if (!sig->ret->byref) {
8160 MonoMarshalSpec *spec = mspecs [0];
8161 type = sig->ret->type;
8163 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8164 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8169 case MONO_TYPE_VOID:
8171 case MONO_TYPE_VALUETYPE:
8172 klass = sig->ret->data.klass;
8173 if (klass->enumtype) {
8174 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
8177 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8191 case MONO_TYPE_FNPTR:
8192 case MONO_TYPE_STRING:
8193 case MONO_TYPE_CLASS:
8194 case MONO_TYPE_OBJECT:
8195 case MONO_TYPE_BOOLEAN:
8196 case MONO_TYPE_ARRAY:
8197 case MONO_TYPE_SZARRAY:
8198 case MONO_TYPE_CHAR:
8200 case MONO_TYPE_GENERICINST:
8201 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8203 case MONO_TYPE_TYPEDBYREF:
8205 g_warning ("return type 0x%02x unknown", sig->ret->type);
8206 g_assert_not_reached ();
8210 mono_mb_emit_stloc (mb, 3);
8214 * Need to call this after converting the result since MONO_VTADDR needs
8215 * to be adjacent to the call instruction.
8217 if (check_exceptions)
8218 emit_thread_interrupt_checkpoint (mb);
8220 /* we need to convert byref arguments back and free string arrays */
8221 for (i = 0; i < sig->param_count; i++) {
8222 MonoType *t = sig->params [i];
8223 MonoMarshalSpec *spec = mspecs [i + 1];
8225 argnum = i + sig->hasthis;
8227 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8228 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8233 case MONO_TYPE_STRING:
8234 case MONO_TYPE_VALUETYPE:
8235 case MONO_TYPE_CLASS:
8236 case MONO_TYPE_OBJECT:
8237 case MONO_TYPE_SZARRAY:
8238 case MONO_TYPE_BOOLEAN:
8239 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8244 if (!MONO_TYPE_IS_VOID(sig->ret))
8245 mono_mb_emit_ldloc (mb, 3);
8247 mono_mb_emit_byte (mb, CEE_RET);
8250 G_GNUC_UNUSED static void
8251 code_for (MonoMethod *method) {
8252 MonoMethodHeader *header = mono_method_get_header (method);
8253 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));
8257 * mono_marshal_get_native_wrapper:
8258 * @method: The MonoMethod to wrap.
8259 * @check_exceptions: Whenever to check for pending exceptions
8261 * generates IL code for the pinvoke wrapper (the generated method
8262 * calls the unmanaged code in piinfo->addr)
8265 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
8267 MonoMethodSignature *sig, *csig;
8268 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8269 MonoMethodBuilder *mb;
8270 MonoMarshalSpec **mspecs;
8273 gboolean pinvoke = FALSE;
8276 const char *exc_class = "MissingMethodException";
8277 const char *exc_arg = NULL;
8279 g_assert (method != NULL);
8280 g_assert (mono_method_signature (method)->pinvoke);
8283 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8285 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8286 if ((res = mono_marshal_find_in_cache (cache, method)))
8289 if (MONO_CLASS_IS_IMPORT (method->klass)) {
8291 return mono_cominterop_get_native_wrapper (method);
8293 g_assert_not_reached ();
8297 sig = mono_method_signature (method);
8299 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8300 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8303 if (!piinfo->addr) {
8305 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
8306 exc_arg = "Method contains unsupported native code";
8308 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8310 piinfo->addr = mono_lookup_internal_call (method);
8313 /* hack - redirect certain string constructors to CreateString */
8314 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8315 g_assert (!pinvoke);
8316 g_assert (method->string_ctor);
8317 g_assert (sig->hasthis);
8319 /* CreateString returns a value */
8320 csig = signature_dup (method->klass->image, sig);
8321 csig->ret = &mono_defaults.string_class->byval_arg;
8325 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8326 if (!strcmp ("CreateString", res->name) &&
8327 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8329 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8330 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8332 /* create a wrapper to preserve .ctor in stack trace */
8333 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8335 mono_mb_emit_byte (mb, CEE_LDARG_0);
8336 for (i = 1; i <= csig->param_count; i++)
8337 mono_mb_emit_ldarg (mb, i);
8338 mono_mb_emit_managed_call (mb, res, NULL);
8339 mono_mb_emit_byte (mb, CEE_RET);
8341 /* use native_wrapper_cache because internal calls are looked up there */
8342 res = mono_mb_create_and_cache (cache, method,
8343 mb, csig, csig->param_count + 1);
8351 /* exception will be thrown */
8352 piinfo->addr = NULL;
8353 g_warning ("cannot find CreateString for .ctor");
8356 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8358 mb->method->save_lmf = 1;
8361 * In AOT mode and embedding scenarios, it is possible that the icall is not
8362 * registered in the runtime doing the AOT compilation.
8364 if (!piinfo->addr && !aot) {
8365 mono_mb_emit_exception (mb, exc_class, exc_arg);
8366 csig = signature_dup (method->klass->image, sig);
8368 res = mono_mb_create_and_cache (cache, method,
8369 mb, csig, csig->param_count + 16);
8374 /* internal calls: we simply push all arguments and call the method (no conversions) */
8375 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8377 csig = signature_dup_add_this (sig, method->klass);
8379 csig = signature_dup (method->klass->image, sig);
8381 /* hack - string constructors returns a value */
8382 if (method->string_ctor)
8383 csig->ret = &mono_defaults.string_class->byval_arg;
8389 * Add a null check since public icalls can be called with 'call' which
8390 * does no such check.
8392 mono_mb_emit_byte (mb, CEE_LDARG_0);
8393 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8394 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8395 mono_mb_patch_branch (mb, pos);
8397 mono_mb_emit_byte (mb, CEE_LDARG_0);
8400 for (i = 0; i < sig->param_count; i++)
8401 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8404 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8405 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8406 mono_mb_emit_calli (mb, csig);
8408 g_assert (piinfo->addr);
8409 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8411 if (check_exceptions)
8412 emit_thread_interrupt_checkpoint (mb);
8413 mono_mb_emit_byte (mb, CEE_RET);
8415 csig = signature_dup (method->klass->image, csig);
8417 res = mono_mb_create_and_cache (cache, method,
8418 mb, csig, csig->param_count + 16);
8425 g_assert (piinfo->addr);
8427 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8428 mono_method_get_marshal_info (method, mspecs);
8430 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
8432 csig = signature_dup (method->klass->image, sig);
8434 res = mono_mb_create_and_cache (cache, method,
8435 mb, csig, csig->param_count + 16);
8438 for (i = sig->param_count; i >= 0; i--)
8440 mono_metadata_free_marshal_spec (mspecs [i]);
8443 /* code_for (res); */
8449 * mono_marshal_get_native_func_wrapper:
8450 * @image: The image to use for memory allocation and for looking up custom marshallers.
8451 * @sig: The signature of the function
8452 * @func: The native function to wrap
8454 * Returns a wrapper method around native functions, similar to the pinvoke
8458 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8459 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8461 MonoMethodSignature *csig;
8463 MonoMethodBuilder *mb;
8468 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
8469 if ((res = mono_marshal_find_in_cache (cache, func)))
8472 name = g_strdup_printf ("wrapper_native_%p", func);
8473 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8474 mb->method->save_lmf = 1;
8476 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
8478 csig = signature_dup (image, sig);
8480 res = mono_mb_create_and_cache (cache, func,
8481 mb, csig, csig->param_count + 16);
8484 mono_marshal_set_wrapper_info (res, NULL);
8486 /* code_for (res); */
8492 * mono_marshal_emit_managed_wrapper:
8494 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8495 * the delegate which wraps the managed method to be called. For closed delegates,
8496 * it could have fewer parameters than the method it wraps.
8497 * THIS_LOC is the memory location where the target of the delegate is stored.
8500 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8502 MonoMethodSignature *sig, *csig;
8504 gboolean closed = FALSE;
8509 /* allocate local 0 (pointer) src_ptr */
8510 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8511 /* allocate local 1 (pointer) dst_ptr */
8512 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8513 /* allocate local 2 (boolean) delete_old */
8514 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8516 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8517 /* Closed delegate */
8518 g_assert (sig->param_count == invoke_sig->param_count + 1);
8520 /* Use a new signature without the first argument */
8521 sig = mono_metadata_signature_dup (sig);
8522 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8523 sig->param_count --;
8526 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8527 /* allocate local 3 to store the return value */
8528 mono_mb_add_local (mb, sig->ret);
8531 mono_mb_emit_icon (mb, 0);
8532 mono_mb_emit_stloc (mb, 2);
8534 /* we first do all conversions */
8535 tmp_locals = alloca (sizeof (int) * sig->param_count);
8536 for (i = 0; i < sig->param_count; i ++) {
8537 MonoType *t = sig->params [i];
8540 case MONO_TYPE_OBJECT:
8541 case MONO_TYPE_CLASS:
8542 case MONO_TYPE_VALUETYPE:
8543 case MONO_TYPE_ARRAY:
8544 case MONO_TYPE_SZARRAY:
8545 case MONO_TYPE_STRING:
8546 case MONO_TYPE_BOOLEAN:
8547 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8556 emit_thread_interrupt_checkpoint (mb);
8559 if (target_handle) {
8560 mono_mb_emit_icon (mb, (gint32)target_handle);
8561 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8564 g_assert_not_reached ();
8566 } else if (closed) {
8567 mono_mb_emit_icon (mb, (gint32)target_handle);
8568 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8571 for (i = 0; i < sig->param_count; i++) {
8572 MonoType *t = sig->params [i];
8574 if (tmp_locals [i]) {
8576 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8578 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8581 mono_mb_emit_ldarg (mb, i);
8584 mono_mb_emit_managed_call (mb, method, NULL);
8586 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8587 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8588 } else if (!sig->ret->byref) {
8589 switch (sig->ret->type) {
8590 case MONO_TYPE_VOID:
8592 case MONO_TYPE_BOOLEAN:
8595 case MONO_TYPE_CHAR:
8607 case MONO_TYPE_OBJECT:
8608 mono_mb_emit_stloc (mb, 3);
8610 case MONO_TYPE_STRING:
8611 csig->ret = &mono_defaults.int_class->byval_arg;
8612 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8614 case MONO_TYPE_VALUETYPE:
8615 case MONO_TYPE_CLASS:
8616 case MONO_TYPE_SZARRAY:
8617 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8620 g_warning ("return type 0x%02x unknown", sig->ret->type);
8621 g_assert_not_reached ();
8624 mono_mb_emit_stloc (mb, 3);
8627 /* Convert byref arguments back */
8628 for (i = 0; i < sig->param_count; i ++) {
8629 MonoType *t = sig->params [i];
8630 MonoMarshalSpec *spec = mspecs [i + 1];
8632 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8633 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8635 else if (t->byref) {
8637 case MONO_TYPE_CLASS:
8638 case MONO_TYPE_VALUETYPE:
8639 case MONO_TYPE_OBJECT:
8640 case MONO_TYPE_STRING:
8641 case MONO_TYPE_BOOLEAN:
8642 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8646 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8647 /* The [Out] information is encoded in the delegate signature */
8649 case MONO_TYPE_SZARRAY:
8650 case MONO_TYPE_CLASS:
8651 case MONO_TYPE_VALUETYPE:
8652 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8655 g_assert_not_reached ();
8660 if (m->retobj_var) {
8661 mono_mb_emit_ldloc (mb, m->retobj_var);
8662 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8663 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8666 if (!MONO_TYPE_IS_VOID(sig->ret))
8667 mono_mb_emit_ldloc (mb, 3);
8668 mono_mb_emit_byte (mb, CEE_RET);
8677 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8679 MonoMethodSignature *sig;
8684 * Under windows, delegates passed to native code must use the STDCALL
8685 * calling convention.
8687 csig->call_convention = MONO_CALL_STDCALL;
8690 sig = mono_method_signature (method);
8692 /* Change default calling convention if needed */
8693 /* Why is this a modopt ? */
8694 if (sig->ret && sig->ret->num_mods) {
8695 for (i = 0; i < sig->ret->num_mods; ++i) {
8696 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8697 g_assert (cmod_class);
8698 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8699 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8700 csig->call_convention = MONO_CALL_C;
8701 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8702 csig->call_convention = MONO_CALL_STDCALL;
8703 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8704 csig->call_convention = MONO_CALL_FASTCALL;
8705 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8706 csig->call_convention = MONO_CALL_THISCALL;
8713 * generates IL code to call managed methods from unmanaged code
8714 * If target_handle==0, the wrapper info will be a NativeToManagedWrapperInfo structure.
8717 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8719 static MonoClass *UnmanagedFunctionPointerAttribute;
8720 MonoMethodSignature *sig, *csig, *invoke_sig;
8721 MonoMethodBuilder *mb;
8722 MonoMethod *res, *invoke;
8723 MonoMarshalSpec **mspecs;
8724 MonoMethodPInvoke piinfo;
8727 EmitMarshalContext m;
8729 g_assert (method != NULL);
8730 g_assert (!mono_method_signature (method)->pinvoke);
8733 * FIXME: Should cache the method+delegate type pair, since the same method
8734 * could be called with different delegates, thus different marshalling
8737 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8738 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8741 invoke = mono_get_delegate_invoke (delegate_klass);
8742 invoke_sig = mono_method_signature (invoke);
8744 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8745 mono_method_get_marshal_info (invoke, mspecs);
8747 sig = mono_method_signature (method);
8749 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8751 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8752 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8754 /* we copy the signature, so that we can modify it */
8756 /* Need to free this later */
8757 csig = mono_metadata_signature_dup (invoke_sig);
8759 csig = signature_dup (method->klass->image, invoke_sig);
8768 m.image = method->klass->image;
8770 mono_marshal_set_callconv_from_modopt (invoke, csig);
8772 /* Handle the UnmanagedFunctionPointerAttribute */
8773 if (!UnmanagedFunctionPointerAttribute)
8774 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8776 /* The attribute is only available in Net 2.0 */
8777 if (UnmanagedFunctionPointerAttribute) {
8778 MonoCustomAttrInfo *cinfo;
8779 MonoCustomAttrEntry *attr;
8782 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8783 * contents of the attribute without constructing it, as that might not be
8784 * possible when running in cross-compiling mode.
8786 cinfo = mono_custom_attrs_from_class (delegate_klass);
8789 for (i = 0; i < cinfo->num_attrs; ++i) {
8790 if (mono_class_has_parent (cinfo->attrs [i].ctor->klass, UnmanagedFunctionPointerAttribute)) {
8791 attr = &cinfo->attrs [i];
8797 MonoArray *typed_args, *named_args;
8798 CattrNamedArg *arginfo;
8802 MonoBoolean set_last_error = 0;
8803 MonoBoolean best_fit_mapping = 0;
8804 MonoBoolean throw_on_unmappable = 0;
8806 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo);
8808 g_assert (mono_array_length (typed_args) == 1);
8811 o = mono_array_get (typed_args, MonoObject*, 0);
8812 call_conv = *(gint32*)mono_object_unbox (o);
8815 for (i = 0; i < mono_array_length (named_args); ++i) {
8816 CattrNamedArg *narg = &arginfo [i];
8818 o = mono_array_get (named_args, MonoObject*, i);
8820 g_assert (narg->field);
8821 if (!strcmp (narg->field->name, "CharSet")) {
8822 charset = *(gint32*)mono_object_unbox (o);
8823 } else if (!strcmp (narg->field->name, "SetLastError")) {
8824 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8825 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8826 best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8827 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8828 throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8830 g_assert_not_reached ();
8836 memset (&piinfo, 0, sizeof (piinfo));
8838 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8840 csig->call_convention = call_conv - 1;
8843 if (cinfo && !cinfo->cached)
8844 mono_custom_attrs_free (cinfo);
8847 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8849 if (!target_handle) {
8850 NativeToManagedWrapperInfo *info;
8852 res = mono_mb_create_and_cache (cache, method,
8853 mb, csig, sig->param_count + 16);
8854 // FIXME: Associate it with the method+delegate_klass pair
8855 info = mono_image_alloc0 (method->klass->image, sizeof (NativeToManagedWrapperInfo));
8856 info->method = method;
8857 info->klass = delegate_klass;
8858 mono_marshal_set_wrapper_info (res, info);
8861 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8865 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8867 mono_metadata_free_marshal_spec (mspecs [i]);
8870 /* code_for (res); */
8876 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8879 MonoMethodSignature *sig;
8880 MonoMethodBuilder *mb;
8885 method = mono_get_method (image, token, NULL);
8888 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8889 MonoMethodSignature *csig;
8890 MonoMarshalSpec **mspecs;
8891 EmitMarshalContext m;
8893 sig = mono_method_signature (method);
8894 g_assert (!sig->hasthis);
8896 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8897 mono_method_get_marshal_info (method, mspecs);
8899 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8900 csig = signature_dup (image, sig);
8911 mono_marshal_set_callconv_from_modopt (method, csig);
8913 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8915 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8918 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8921 for (i = sig->param_count; i >= 0; i--)
8923 mono_metadata_free_marshal_spec (mspecs [i]);
8926 return mono_compile_method (method);
8929 sig = mono_method_signature (method);
8930 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8932 param_count = sig->param_count + sig->hasthis;
8933 for (i = 0; i < param_count; i++)
8934 mono_mb_emit_ldarg (mb, i);
8936 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8937 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8939 mono_mb_emit_op (mb, CEE_CALL, method);
8940 mono_mb_emit_byte (mb, CEE_RET);
8943 method = mono_mb_create_method (mb, sig, param_count);
8946 return mono_compile_method (method);
8949 static MonoReflectionType *
8950 type_from_handle (MonoType *handle)
8952 MonoDomain *domain = mono_domain_get ();
8953 MonoClass *klass = mono_class_from_mono_type (handle);
8955 MONO_ARCH_SAVE_REGS;
8957 mono_class_init (klass);
8958 return mono_type_get_object (domain, handle);
8962 * This does the equivalent of mono_object_castclass_with_cache.
8965 mono_marshal_get_castclass_with_cache (void)
8967 static MonoMethod *cached;
8969 MonoMethodBuilder *mb;
8970 MonoMethodSignature *sig;
8971 int return_null_pos, cache_miss_pos, invalid_cast_pos;
8976 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8977 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8978 sig->params [0] = &mono_defaults.object_class->byval_arg;
8979 sig->params [1] = &mono_defaults.int_class->byval_arg;
8980 sig->params [2] = &mono_defaults.int_class->byval_arg;
8981 sig->ret = &mono_defaults.object_class->byval_arg;
8984 /* allocate local 0 (pointer) obj_vtable */
8985 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8988 mono_mb_emit_ldarg (mb, 0);
8989 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8991 /*obj_vtable = obj->vtable;*/
8992 mono_mb_emit_ldarg (mb, 0);
8993 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8994 mono_mb_emit_byte (mb, CEE_LDIND_I);
8995 mono_mb_emit_stloc (mb, 0);
8998 mono_mb_emit_ldarg (mb, 2);
8999 mono_mb_emit_byte (mb, CEE_LDIND_I);
9000 mono_mb_emit_ldloc (mb, 0);
9002 /*if (*cache == obj_vtable)*/
9003 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9006 mono_mb_emit_ldarg (mb, 0);
9007 mono_mb_emit_byte (mb, CEE_RET);
9009 mono_mb_patch_branch (mb, cache_miss_pos);
9010 /*if (mono_object_isinst (obj, klass)) */
9011 mono_mb_emit_ldarg (mb, 0);
9012 mono_mb_emit_ldarg (mb, 1);
9013 mono_mb_emit_icall (mb, mono_object_isinst);
9014 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9016 /**cache = obj_vtable;*/
9017 mono_mb_emit_ldarg (mb, 2);
9018 mono_mb_emit_ldloc (mb, 0);
9019 mono_mb_emit_byte (mb, CEE_STIND_I);
9022 mono_mb_emit_ldarg (mb, 0);
9023 mono_mb_emit_byte (mb, CEE_RET);
9026 mono_mb_patch_branch (mb, invalid_cast_pos);
9027 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9030 mono_mb_patch_branch (mb, return_null_pos);
9031 mono_mb_emit_byte (mb, CEE_LDNULL);
9032 mono_mb_emit_byte (mb, CEE_RET);
9034 res = mono_mb_create_method (mb, sig, 8);
9037 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9038 mono_free_method (res);
9039 mono_metadata_free_method_signature (sig);
9047 * This does the equivalent of mono_object_isinst_with_cache.
9050 mono_marshal_get_isinst_with_cache (void)
9052 static MonoMethod *cached;
9054 MonoMethodBuilder *mb;
9055 MonoMethodSignature *sig;
9056 int return_null_pos, cache_miss_pos, cache_hit_pos, not_an_instance_pos, negative_cache_hit_pos;
9061 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9062 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9063 sig->params [0] = &mono_defaults.object_class->byval_arg;
9064 sig->params [1] = &mono_defaults.int_class->byval_arg;
9065 sig->params [2] = &mono_defaults.int_class->byval_arg;
9066 sig->ret = &mono_defaults.object_class->byval_arg;
9069 /* allocate local 0 (pointer) obj_vtable */
9070 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9071 /* allocate local 1 (pointer) cached_vtable */
9072 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9075 mono_mb_emit_ldarg (mb, 0);
9076 return_null_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9078 /*obj_vtable = obj->vtable;*/
9079 mono_mb_emit_ldarg (mb, 0);
9080 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9081 mono_mb_emit_byte (mb, CEE_LDIND_I);
9082 mono_mb_emit_stloc (mb, 0);
9084 /* cached_vtable = *cache*/
9085 mono_mb_emit_ldarg (mb, 2);
9086 mono_mb_emit_byte (mb, CEE_LDIND_I);
9087 mono_mb_emit_stloc (mb, 1);
9089 mono_mb_emit_ldloc (mb, 1);
9090 mono_mb_emit_byte (mb, CEE_LDC_I4);
9091 mono_mb_emit_i4 (mb, ~0x1);
9092 mono_mb_emit_byte (mb, CEE_CONV_U);
9093 mono_mb_emit_byte (mb, CEE_AND);
9094 mono_mb_emit_ldloc (mb, 0);
9095 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9096 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9098 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9099 mono_mb_emit_ldloc (mb, 1);
9100 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9101 mono_mb_emit_byte (mb, CEE_CONV_U);
9102 mono_mb_emit_byte (mb, CEE_AND);
9103 negative_cache_hit_pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
9106 mono_mb_emit_ldarg (mb, 0);
9107 cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9110 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9111 mono_mb_emit_byte (mb, CEE_LDNULL);
9113 mono_mb_patch_branch (mb, cache_hit_pos);
9114 mono_mb_emit_byte (mb, CEE_RET);
9116 mono_mb_patch_branch (mb, cache_miss_pos);
9117 /*if (mono_object_isinst (obj, klass)) */
9118 mono_mb_emit_ldarg (mb, 0);
9119 mono_mb_emit_ldarg (mb, 1);
9120 mono_mb_emit_icall (mb, mono_object_isinst);
9121 not_an_instance_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9123 /**cache = obj_vtable;*/
9124 mono_mb_emit_ldarg (mb, 2);
9125 mono_mb_emit_ldloc (mb, 0);
9126 mono_mb_emit_byte (mb, CEE_STIND_I);
9129 mono_mb_emit_ldarg (mb, 0);
9130 mono_mb_emit_byte (mb, CEE_RET);
9133 mono_mb_patch_branch (mb, not_an_instance_pos);
9134 /* *cache = (gpointer)(obj_vtable | 0x1);*/
9135 mono_mb_emit_ldarg (mb, 2);
9136 /*obj_vtable | 0x1*/
9137 mono_mb_emit_ldloc (mb, 0);
9138 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9139 mono_mb_emit_byte (mb, CEE_CONV_U);
9140 mono_mb_emit_byte (mb, CEE_OR);
9143 mono_mb_emit_byte (mb, CEE_STIND_I);
9146 mono_mb_patch_branch (mb, return_null_pos);
9147 mono_mb_emit_byte (mb, CEE_LDNULL);
9148 mono_mb_emit_byte (mb, CEE_RET);
9150 res = mono_mb_create_method (mb, sig, 8);
9153 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9154 mono_free_method (res);
9155 mono_metadata_free_method_signature (sig);
9163 * mono_marshal_get_isinst:
9164 * @klass: the type of the field
9166 * This method generates a function which can be used to check if an object is
9167 * an instance of the given type, icluding the case where the object is a proxy.
9168 * The generated function has the following signature:
9169 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
9172 mono_marshal_get_isinst (MonoClass *klass)
9174 static MonoMethodSignature *isint_sig = NULL;
9177 int pos_was_ok, pos_failed, pos_end, pos_end2;
9179 MonoMethodBuilder *mb;
9181 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
9182 if ((res = mono_marshal_find_in_cache (cache, klass)))
9186 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9187 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9188 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9189 isint_sig->pinvoke = 0;
9192 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9193 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9196 mb->method->save_lmf = 1;
9198 /* check if the object is a proxy that needs special cast */
9199 mono_mb_emit_ldarg (mb, 0);
9200 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9201 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9203 /* The result of MONO_ISINST can be:
9204 0) the type check succeeded
9205 1) the type check did not succeed
9206 2) a CanCastTo call is needed */
9208 mono_mb_emit_byte (mb, CEE_DUP);
9209 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9211 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9212 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9214 /* get the real proxy from the transparent proxy*/
9216 mono_mb_emit_ldarg (mb, 0);
9217 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9218 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9222 mono_mb_patch_branch (mb, pos_failed);
9223 mono_mb_emit_byte (mb, CEE_LDNULL);
9224 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9228 mono_mb_patch_branch (mb, pos_was_ok);
9229 mono_mb_emit_byte (mb, CEE_POP);
9230 mono_mb_emit_ldarg (mb, 0);
9234 mono_mb_patch_branch (mb, pos_end);
9235 mono_mb_patch_branch (mb, pos_end2);
9236 mono_mb_emit_byte (mb, CEE_RET);
9238 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9245 * mono_marshal_get_castclass:
9246 * @klass: the type of the field
9248 * This method generates a function which can be used to cast an object to
9249 * an instance of the given type, icluding the case where the object is a proxy.
9250 * The generated function has the following signature:
9251 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9254 mono_marshal_get_castclass (MonoClass *klass)
9256 static MonoMethodSignature *castclass_sig = NULL;
9259 int pos_was_ok, pos_was_ok2;
9261 MonoMethodBuilder *mb;
9263 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9264 if ((res = mono_marshal_find_in_cache (cache, klass)))
9267 if (!castclass_sig) {
9268 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9269 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9270 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9271 castclass_sig->pinvoke = 0;
9274 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9275 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9278 mb->method->save_lmf = 1;
9280 /* check if the object is a proxy that needs special cast */
9281 mono_mb_emit_ldarg (mb, 0);
9282 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9283 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9285 /* The result of MONO_ISINST can be:
9286 0) the cast is valid
9287 1) cast of unknown proxy type
9288 or an exception if the cast is is invalid
9291 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9293 /* get the real proxy from the transparent proxy*/
9295 mono_mb_emit_ldarg (mb, 0);
9296 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9297 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9300 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9303 mono_mb_patch_branch (mb, pos_was_ok);
9304 mono_mb_patch_branch (mb, pos_was_ok2);
9305 mono_mb_emit_ldarg (mb, 0);
9308 mono_mb_emit_byte (mb, CEE_RET);
9310 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
9317 mono_marshal_get_proxy_cancast (MonoClass *klass)
9319 static MonoMethodSignature *isint_sig = NULL;
9322 int pos_failed, pos_end;
9323 char *name, *klass_name;
9324 MonoMethod *can_cast_to;
9325 MonoMethodDesc *desc;
9326 MonoMethodBuilder *mb;
9328 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
9329 if ((res = mono_marshal_find_in_cache (cache, klass)))
9333 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9334 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9335 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9336 isint_sig->pinvoke = 0;
9339 klass_name = mono_type_full_name (&klass->byval_arg);
9340 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
9341 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
9342 g_free (klass_name);
9345 mb->method->save_lmf = 1;
9347 /* get the real proxy from the transparent proxy*/
9348 mono_mb_emit_ldarg (mb, 0);
9349 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
9350 mono_mb_emit_byte (mb, CEE_LDIND_REF);
9352 /* get the reflection type from the type handle */
9353 mono_mb_emit_ptr (mb, &klass->byval_arg);
9354 mono_mb_emit_icall (mb, type_from_handle);
9356 mono_mb_emit_ldarg (mb, 0);
9358 /* make the call to CanCastTo (type, ob) */
9359 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
9360 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
9361 g_assert (can_cast_to);
9362 mono_method_desc_free (desc);
9363 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
9365 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
9367 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
9368 mono_mb_emit_ptr (mb, &klass->byval_arg);
9369 mono_mb_emit_icall (mb, type_from_handle);
9370 mono_mb_emit_ldarg (mb, 0);
9372 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
9373 emit_thread_interrupt_checkpoint (mb);
9375 mono_mb_emit_ldarg (mb, 0);
9376 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9380 mono_mb_patch_branch (mb, pos_failed);
9381 mono_mb_emit_byte (mb, CEE_LDNULL);
9385 mono_mb_patch_branch (mb, pos_end);
9386 mono_mb_emit_byte (mb, CEE_RET);
9388 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
9395 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
9398 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
9399 klass = mono_class_from_mono_type (rtype->type);
9400 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
9404 * mono_marshal_get_struct_to_ptr:
9407 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9410 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9412 MonoMethodBuilder *mb;
9413 static MonoMethod *stoptr = NULL;
9416 g_assert (klass != NULL);
9418 mono_marshal_load_type_info (klass);
9420 if (klass->marshal_info->str_to_ptr)
9421 return klass->marshal_info->str_to_ptr;
9424 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9427 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9429 if (klass->blittable) {
9430 mono_mb_emit_byte (mb, CEE_LDARG_1);
9431 mono_mb_emit_byte (mb, CEE_LDARG_0);
9432 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9433 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9434 mono_mb_emit_byte (mb, CEE_PREFIX1);
9435 mono_mb_emit_byte (mb, CEE_CPBLK);
9438 /* allocate local 0 (pointer) src_ptr */
9439 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9440 /* allocate local 1 (pointer) dst_ptr */
9441 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9442 /* allocate local 2 (boolean) delete_old */
9443 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9444 mono_mb_emit_byte (mb, CEE_LDARG_2);
9445 mono_mb_emit_stloc (mb, 2);
9447 /* initialize src_ptr to point to the start of object data */
9448 mono_mb_emit_byte (mb, CEE_LDARG_0);
9449 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9450 mono_mb_emit_stloc (mb, 0);
9452 /* initialize dst_ptr */
9453 mono_mb_emit_byte (mb, CEE_LDARG_1);
9454 mono_mb_emit_stloc (mb, 1);
9456 emit_struct_conv (mb, klass, FALSE);
9459 mono_mb_emit_byte (mb, CEE_RET);
9461 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
9464 klass->marshal_info->str_to_ptr = res;
9469 * mono_marshal_get_ptr_to_struct:
9472 * generates IL code for PtrToStructure (IntPtr src, object structure)
9475 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9477 MonoMethodBuilder *mb;
9478 static MonoMethodSignature *ptostr = NULL;
9481 g_assert (klass != NULL);
9483 mono_marshal_load_type_info (klass);
9485 if (klass->marshal_info->ptr_to_str)
9486 return klass->marshal_info->ptr_to_str;
9489 MonoMethodSignature *sig;
9491 /* Create the signature corresponding to
9492 static void PtrToStructure (IntPtr ptr, object structure);
9493 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9494 sig = mono_create_icall_signature ("void ptr object");
9495 sig = signature_dup (mono_defaults.corlib, sig);
9497 mono_memory_barrier ();
9501 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9503 if (klass->blittable) {
9504 mono_mb_emit_byte (mb, CEE_LDARG_1);
9505 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9506 mono_mb_emit_byte (mb, CEE_LDARG_0);
9507 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9508 mono_mb_emit_byte (mb, CEE_PREFIX1);
9509 mono_mb_emit_byte (mb, CEE_CPBLK);
9512 /* allocate local 0 (pointer) src_ptr */
9513 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9514 /* allocate local 1 (pointer) dst_ptr */
9515 mono_mb_add_local (mb, &klass->this_arg);
9517 /* initialize src_ptr to point to the start of object data */
9518 mono_mb_emit_byte (mb, CEE_LDARG_0);
9519 mono_mb_emit_stloc (mb, 0);
9521 /* initialize dst_ptr */
9522 mono_mb_emit_byte (mb, CEE_LDARG_1);
9523 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9524 mono_mb_emit_stloc (mb, 1);
9526 emit_struct_conv (mb, klass, TRUE);
9529 mono_mb_emit_byte (mb, CEE_RET);
9531 res = mono_mb_create_method (mb, ptostr, 0);
9534 klass->marshal_info->ptr_to_str = res;
9539 * generates IL code for the synchronized wrapper: the generated method
9540 * calls METHOD while locking 'this' or the parent type.
9543 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9545 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9546 MonoMethodSignature *sig;
9547 MonoExceptionClause *clause;
9548 MonoMethodBuilder *mb;
9551 int i, pos, this_local, ret_local = 0;
9555 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9558 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
9559 if ((res = mono_marshal_find_in_cache (cache, method)))
9562 sig = signature_dup (method->klass->image, mono_method_signature (method));
9565 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9568 if (!MONO_TYPE_IS_VOID (sig->ret))
9569 ret_local = mono_mb_add_local (mb, sig->ret);
9571 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9572 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9573 /* This will throw the type load exception when the wrapper is compiled */
9574 mono_mb_emit_byte (mb, CEE_LDNULL);
9575 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9576 mono_mb_emit_byte (mb, CEE_POP);
9578 if (!MONO_TYPE_IS_VOID (sig->ret))
9579 mono_mb_emit_ldloc (mb, ret_local);
9580 mono_mb_emit_byte (mb, CEE_RET);
9582 res = mono_mb_create_and_cache (cache, method,
9583 mb, sig, sig->param_count + 16);
9590 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9592 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9593 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9595 mono_loader_lock ();
9597 if (!enter_method) {
9598 MonoMethodDesc *desc;
9600 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9601 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9602 g_assert (enter_method);
9603 mono_method_desc_free (desc);
9605 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9606 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9607 g_assert (exit_method);
9608 mono_method_desc_free (desc);
9610 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9611 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
9612 g_assert (gettypefromhandle_method);
9613 mono_method_desc_free (desc);
9616 mono_loader_unlock ();
9618 /* Push this or the type object */
9619 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9620 /* We have special handling for this in the JIT */
9621 int index = mono_mb_add_data (mb, method->klass);
9622 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9623 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9624 mono_mb_emit_i4 (mb, index);
9626 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9629 mono_mb_emit_ldarg (mb, 0);
9630 mono_mb_emit_stloc (mb, this_local);
9632 /* Call Monitor::Enter() */
9633 mono_mb_emit_ldloc (mb, this_local);
9634 mono_mb_emit_managed_call (mb, enter_method, NULL);
9636 clause->try_offset = mono_mb_get_label (mb);
9638 /* Call the method */
9640 mono_mb_emit_ldarg (mb, 0);
9641 for (i = 0; i < sig->param_count; i++)
9642 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9644 mono_mb_emit_managed_call (mb, method, NULL);
9646 if (!MONO_TYPE_IS_VOID (sig->ret))
9647 mono_mb_emit_stloc (mb, ret_local);
9649 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9651 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9652 clause->handler_offset = mono_mb_get_label (mb);
9654 /* Call Monitor::Exit() */
9655 mono_mb_emit_ldloc (mb, this_local);
9656 mono_mb_emit_managed_call (mb, exit_method, NULL);
9657 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9659 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9661 mono_mb_patch_branch (mb, pos);
9662 if (!MONO_TYPE_IS_VOID (sig->ret))
9663 mono_mb_emit_ldloc (mb, ret_local);
9664 mono_mb_emit_byte (mb, CEE_RET);
9666 mono_mb_set_clauses (mb, 1, clause);
9668 res = mono_mb_create_and_cache (cache, method,
9669 mb, sig, sig->param_count + 16);
9677 * the returned method calls 'method' unboxing the this argument
9680 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9682 MonoMethodSignature *sig = mono_method_signature (method);
9684 MonoMethodBuilder *mb;
9688 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9689 if ((res = mono_marshal_find_in_cache (cache, method)))
9692 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9694 g_assert (sig->hasthis);
9696 mono_mb_emit_ldarg (mb, 0);
9697 mono_mb_emit_icon (mb, sizeof (MonoObject));
9698 mono_mb_emit_byte (mb, CEE_ADD);
9699 for (i = 0; i < sig->param_count; ++i)
9700 mono_mb_emit_ldarg (mb, i + 1);
9701 mono_mb_emit_managed_call (mb, method, NULL);
9702 mono_mb_emit_byte (mb, CEE_RET);
9704 res = mono_mb_create_and_cache (cache, method,
9705 mb, sig, sig->param_count + 16);
9708 /* code_for (res); */
9714 STELEMREF_OBJECT, /*no check at all*/
9715 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9716 STELEMREF_CLASS, /*only the klass->parents check*/
9717 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9718 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9719 STELEMREF_KIND_COUNT
9722 static const char *strelemref_wrapper_name[] = {
9723 "object", "sealed_class", "class", "interface", "complex"
9727 is_monomorphic_array (MonoClass *klass)
9729 MonoClass *element_class;
9730 if (klass->rank != 1)
9733 element_class = klass->element_class;
9734 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9738 get_virtual_stelemref_kind (MonoClass *element_class)
9740 if (element_class == mono_defaults.object_class)
9741 return STELEMREF_OBJECT;
9742 if (is_monomorphic_array (element_class))
9743 return STELEMREF_SEALED_CLASS;
9744 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9745 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9746 #ifdef COMPRESSED_INTERFACE_BITMAP
9747 return STELEMREF_COMPLEX;
9749 return STELEMREF_INTERFACE;
9751 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9752 if (element_class->marshalbyref || element_class->rank || mono_class_has_variant_generic_params (element_class))
9753 return STELEMREF_COMPLEX;
9754 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9755 return STELEMREF_SEALED_CLASS;
9756 return STELEMREF_CLASS;
9760 load_array_element_address (MonoMethodBuilder *mb)
9762 mono_mb_emit_ldarg (mb, 0);
9763 mono_mb_emit_ldarg (mb, 1);
9764 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9768 load_array_class (MonoMethodBuilder *mb, int aklass)
9770 mono_mb_emit_ldarg (mb, 0);
9771 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9772 mono_mb_emit_byte (mb, CEE_LDIND_I);
9773 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9774 mono_mb_emit_byte (mb, CEE_LDIND_I);
9775 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9776 mono_mb_emit_byte (mb, CEE_LDIND_I);
9777 mono_mb_emit_stloc (mb, aklass);
9781 load_value_class (MonoMethodBuilder *mb, int vklass)
9783 mono_mb_emit_ldarg (mb, 2);
9784 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9785 mono_mb_emit_byte (mb, CEE_LDIND_I);
9786 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9787 mono_mb_emit_byte (mb, CEE_LDIND_I);
9788 mono_mb_emit_stloc (mb, vklass);
9793 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9795 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9796 printf ("slow vstore of %s\n", name);
9802 * The wrapper info for the wrapper contains the wrapper 'kind' + 1.
9805 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9806 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9807 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9808 * - Add a case for arrays of arrays.
9811 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9813 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9814 static MonoMethodSignature *signature;
9815 MonoMethodBuilder *mb;
9819 const char *param_names [16];
9821 int aklass, vklass, vtable, uiid;
9822 int array_slot_addr;
9824 g_assert (array_class->rank == 1);
9825 kind = get_virtual_stelemref_kind (array_class->element_class);
9827 if (cached_methods [kind])
9828 return cached_methods [kind];
9830 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9831 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9834 param_names [0] = "index";
9835 param_names [1] = "value";
9836 mono_mb_set_param_names (mb, param_names);
9839 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9841 /* void this::stelemref (size_t idx, void* value) */
9842 sig->ret = &mono_defaults.void_class->byval_arg;
9843 sig->hasthis = TRUE;
9844 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9845 sig->params [1] = &mono_defaults.object_class->byval_arg;
9849 /*For now simply call plain old stelemref*/
9851 case STELEMREF_OBJECT:
9852 /* ldelema (implicit bound check) */
9853 load_array_element_address (mb);
9855 mono_mb_emit_ldarg (mb, 2);
9856 mono_mb_emit_byte (mb, CEE_STIND_REF);
9857 mono_mb_emit_byte (mb, CEE_RET);
9860 case STELEMREF_COMPLEX:
9862 <ldelema (bound check)>
9865 if (!mono_object_isinst (value, aklass))
9869 *array_slot_addr = value;
9872 throw new ArrayTypeMismatchException ();
9875 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9876 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9880 /*Use this to debug/record stores that are going thru the slow path*/
9881 MonoMethodSignature *csig;
9882 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9883 csig->ret = &mono_defaults.void_class->byval_arg;
9884 csig->params [0] = &mono_defaults.object_class->byval_arg;
9885 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9886 csig->params [2] = &mono_defaults.object_class->byval_arg;
9887 mono_mb_emit_ldarg (mb, 0);
9888 mono_mb_emit_ldarg (mb, 1);
9889 mono_mb_emit_ldarg (mb, 2);
9890 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9894 /* ldelema (implicit bound check) */
9895 load_array_element_address (mb);
9896 mono_mb_emit_stloc (mb, array_slot_addr);
9898 /* if (!value) goto do_store */
9899 mono_mb_emit_ldarg (mb, 2);
9900 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9902 /* aklass = array->vtable->klass->element_class */
9903 load_array_class (mb, aklass);
9905 /*if (mono_object_isinst (value, aklass)) */
9906 mono_mb_emit_ldarg (mb, 2);
9907 mono_mb_emit_ldloc (mb, aklass);
9908 mono_mb_emit_icall (mb, mono_object_isinst);
9909 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9912 mono_mb_patch_branch (mb, b1);
9913 mono_mb_emit_ldloc (mb, array_slot_addr);
9914 mono_mb_emit_ldarg (mb, 2);
9915 mono_mb_emit_byte (mb, CEE_STIND_REF);
9916 mono_mb_emit_byte (mb, CEE_RET);
9919 mono_mb_patch_branch (mb, b2);
9921 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9924 case STELEMREF_SEALED_CLASS:
9926 <ldelema (bound check)>
9930 aklass = array->vtable->klass->element_class;
9931 vklass = value->vtable->klass;
9933 if (vklass != aklass)
9937 *array_slot_addr = value;
9940 throw new ArrayTypeMismatchException ();
9942 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9943 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9944 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9947 /* ldelema (implicit bound check) */
9948 load_array_element_address (mb);
9949 mono_mb_emit_stloc (mb, array_slot_addr);
9951 /* if (!value) goto do_store */
9952 mono_mb_emit_ldarg (mb, 2);
9953 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9955 /* aklass = array->vtable->klass->element_class */
9956 load_array_class (mb, aklass);
9958 /* vklass = value->vtable->klass */
9959 load_value_class (mb, vklass);
9961 /*if (vklass != aklass) goto do_exception; */
9962 mono_mb_emit_ldloc (mb, aklass);
9963 mono_mb_emit_ldloc (mb, vklass);
9964 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9967 mono_mb_patch_branch (mb, b1);
9968 mono_mb_emit_ldloc (mb, array_slot_addr);
9969 mono_mb_emit_ldarg (mb, 2);
9970 mono_mb_emit_byte (mb, CEE_STIND_REF);
9971 mono_mb_emit_byte (mb, CEE_RET);
9974 mono_mb_patch_branch (mb, b2);
9975 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9978 case STELEMREF_CLASS:
9981 <ldelema (bound check)>
9985 aklass = array->vtable->klass->element_class;
9986 vklass = value->vtable->klass;
9988 if (vklass->idepth < aklass->idepth)
9991 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9995 *array_slot_addr = value;
9999 throw new ArrayTypeMismatchException ();
10001 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10002 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10003 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10005 /* ldelema (implicit bound check) */
10006 load_array_element_address (mb);
10007 mono_mb_emit_stloc (mb, array_slot_addr);
10009 /* if (!value) goto do_store */
10010 mono_mb_emit_ldarg (mb, 2);
10011 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10013 /* aklass = array->vtable->klass->element_class */
10014 load_array_class (mb, aklass);
10016 /* vklass = value->vtable->klass */
10017 load_value_class (mb, vklass);
10019 /*if (mono_object_isinst (value, aklass)) */
10020 mono_mb_emit_ldarg (mb, 2);
10021 mono_mb_emit_ldloc (mb, aklass);
10022 mono_mb_emit_icall (mb, mono_object_isinst);
10023 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10025 /* if (vklass->idepth < aklass->idepth) goto failue */
10026 mono_mb_emit_ldloc (mb, vklass);
10027 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10028 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10030 mono_mb_emit_ldloc (mb, aklass);
10031 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10032 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10034 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10036 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10037 mono_mb_emit_ldloc (mb, vklass);
10038 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10039 mono_mb_emit_byte (mb, CEE_LDIND_I);
10041 mono_mb_emit_ldloc (mb, aklass);
10042 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10043 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10044 mono_mb_emit_icon (mb, 1);
10045 mono_mb_emit_byte (mb, CEE_SUB);
10046 mono_mb_emit_icon (mb, sizeof (void*));
10047 mono_mb_emit_byte (mb, CEE_MUL);
10048 mono_mb_emit_byte (mb, CEE_ADD);
10049 mono_mb_emit_byte (mb, CEE_LDIND_I);
10051 mono_mb_emit_ldloc (mb, aklass);
10052 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10055 mono_mb_patch_branch (mb, b1);
10056 mono_mb_emit_ldloc (mb, array_slot_addr);
10057 mono_mb_emit_ldarg (mb, 2);
10058 mono_mb_emit_byte (mb, CEE_STIND_REF);
10059 mono_mb_emit_byte (mb, CEE_RET);
10061 /* do_exception: */
10062 mono_mb_patch_branch (mb, b2);
10063 mono_mb_patch_branch (mb, b3);
10065 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10068 case STELEMREF_INTERFACE:
10075 klass = array->obj.vtable->klass->element_class;
10076 vt = value->vtable;
10077 uiid = klass->interface_id;
10078 if (uiid > vt->max_interface_id)
10080 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10083 mono_array_setref (array, index, value);
10086 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10088 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10089 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10090 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10091 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10093 /* ldelema (implicit bound check) */
10094 load_array_element_address (mb);
10095 mono_mb_emit_stloc (mb, array_slot_addr);
10097 /* if (!value) goto do_store */
10098 mono_mb_emit_ldarg (mb, 2);
10099 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10101 /* klass = array->vtable->klass->element_class */
10102 load_array_class (mb, aklass);
10104 /* vt = value->vtable */
10105 mono_mb_emit_ldarg (mb, 2);
10106 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10107 mono_mb_emit_byte (mb, CEE_LDIND_I);
10108 mono_mb_emit_stloc (mb, vtable);
10110 /* uiid = klass->interface_id; */
10111 mono_mb_emit_ldloc (mb, aklass);
10112 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, interface_id));
10113 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10114 mono_mb_emit_stloc (mb, uiid);
10116 /*if (uiid > vt->max_interface_id)*/
10117 mono_mb_emit_ldloc (mb, uiid);
10118 mono_mb_emit_ldloc (mb, vtable);
10119 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, max_interface_id));
10120 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10121 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10123 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10125 /*vt->interface_bitmap*/
10126 mono_mb_emit_ldloc (mb, vtable);
10127 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10128 mono_mb_emit_byte (mb, CEE_LDIND_I);
10131 mono_mb_emit_ldloc (mb, uiid);
10132 mono_mb_emit_icon (mb, 3);
10133 mono_mb_emit_byte (mb, CEE_SHR_UN);
10135 /*vt->interface_bitmap [(uiid) >> 3]*/
10136 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10137 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10139 /*(1 << ((uiid)&7)))*/
10140 mono_mb_emit_icon (mb, 1);
10141 mono_mb_emit_ldloc (mb, uiid);
10142 mono_mb_emit_icon (mb, 7);
10143 mono_mb_emit_byte (mb, CEE_AND);
10144 mono_mb_emit_byte (mb, CEE_SHL);
10146 /*bitwise and the whole thing*/
10147 mono_mb_emit_byte (mb, CEE_AND);
10148 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10151 mono_mb_patch_branch (mb, b1);
10152 mono_mb_emit_ldloc (mb, array_slot_addr);
10153 mono_mb_emit_ldarg (mb, 2);
10154 mono_mb_emit_byte (mb, CEE_STIND_REF);
10155 mono_mb_emit_byte (mb, CEE_RET);
10157 /* do_exception: */
10158 mono_mb_patch_branch (mb, b2);
10159 mono_mb_patch_branch (mb, b3);
10160 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10164 mono_mb_emit_ldarg (mb, 0);
10165 mono_mb_emit_ldarg (mb, 1);
10166 mono_mb_emit_ldarg (mb, 2);
10167 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10168 mono_mb_emit_byte (mb, CEE_RET);
10172 res = mono_mb_create_method (mb, signature, 4);
10173 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10174 mono_marshal_set_wrapper_info (res, GUINT_TO_POINTER (kind + 1));
10176 mono_marshal_lock ();
10177 if (!cached_methods [kind]) {
10178 cached_methods [kind] = res;
10179 mono_marshal_unlock ();
10181 mono_marshal_unlock ();
10182 mono_free_method (res);
10186 return cached_methods [kind];
10190 mono_marshal_get_stelemref ()
10192 static MonoMethod* ret = NULL;
10193 MonoMethodSignature *sig;
10194 MonoMethodBuilder *mb;
10196 guint32 b1, b2, b3, b4;
10198 int aklass, vklass;
10199 int array_slot_addr;
10204 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10207 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10209 /* void stelemref (void* array, int idx, void* value) */
10210 sig->ret = &mono_defaults.void_class->byval_arg;
10211 sig->params [0] = &mono_defaults.object_class->byval_arg;
10212 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10213 sig->params [2] = &mono_defaults.object_class->byval_arg;
10215 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10216 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10217 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10221 <ldelema (bound check)>
10225 aklass = array->vtable->klass->element_class;
10226 vklass = value->vtable->klass;
10228 if (vklass->idepth < aklass->idepth)
10231 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10235 *array_slot_addr = value;
10239 if (mono_object_isinst (value, aklass))
10242 throw new ArrayTypeMismatchException ();
10245 /* ldelema (implicit bound check) */
10246 mono_mb_emit_ldarg (mb, 0);
10247 mono_mb_emit_ldarg (mb, 1);
10248 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10249 mono_mb_emit_stloc (mb, array_slot_addr);
10251 /* if (!value) goto do_store */
10252 mono_mb_emit_ldarg (mb, 2);
10253 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10255 /* aklass = array->vtable->klass->element_class */
10256 mono_mb_emit_ldarg (mb, 0);
10257 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10258 mono_mb_emit_byte (mb, CEE_LDIND_I);
10259 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10260 mono_mb_emit_byte (mb, CEE_LDIND_I);
10261 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
10262 mono_mb_emit_byte (mb, CEE_LDIND_I);
10263 mono_mb_emit_stloc (mb, aklass);
10265 /* vklass = value->vtable->klass */
10266 mono_mb_emit_ldarg (mb, 2);
10267 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
10268 mono_mb_emit_byte (mb, CEE_LDIND_I);
10269 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
10270 mono_mb_emit_byte (mb, CEE_LDIND_I);
10271 mono_mb_emit_stloc (mb, vklass);
10273 /* if (vklass->idepth < aklass->idepth) goto failue */
10274 mono_mb_emit_ldloc (mb, vklass);
10275 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10276 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10278 mono_mb_emit_ldloc (mb, aklass);
10279 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10280 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10282 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10284 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10285 mono_mb_emit_ldloc (mb, vklass);
10286 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
10287 mono_mb_emit_byte (mb, CEE_LDIND_I);
10289 mono_mb_emit_ldloc (mb, aklass);
10290 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
10291 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10292 mono_mb_emit_icon (mb, 1);
10293 mono_mb_emit_byte (mb, CEE_SUB);
10294 mono_mb_emit_icon (mb, sizeof (void*));
10295 mono_mb_emit_byte (mb, CEE_MUL);
10296 mono_mb_emit_byte (mb, CEE_ADD);
10297 mono_mb_emit_byte (mb, CEE_LDIND_I);
10299 mono_mb_emit_ldloc (mb, aklass);
10301 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10303 copy_pos = mono_mb_get_label (mb);
10305 mono_mb_patch_branch (mb, b1);
10306 mono_mb_emit_ldloc (mb, array_slot_addr);
10307 mono_mb_emit_ldarg (mb, 2);
10308 mono_mb_emit_byte (mb, CEE_STIND_REF);
10310 mono_mb_emit_byte (mb, CEE_RET);
10313 mono_mb_patch_branch (mb, b2);
10314 mono_mb_patch_branch (mb, b3);
10316 mono_mb_emit_ldarg (mb, 2);
10317 mono_mb_emit_ldloc (mb, aklass);
10318 mono_mb_emit_icall (mb, mono_object_isinst);
10320 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10321 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10322 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10324 mono_mb_emit_byte (mb, CEE_RET);
10325 ret = mono_mb_create_method (mb, sig, 4);
10333 MonoMethod *method;
10336 /* LOCKING: vars accessed under the marshal lock */
10337 static ArrayElemAddr *elem_addr_cache = NULL;
10338 static int elem_addr_cache_size = 0;
10339 static int elem_addr_cache_next = 0;
10342 * mono_marshal_get_array_address:
10343 * @rank: rank of the array type
10344 * @elem_size: size in bytes of an element of an array.
10346 * Returns a MonoMethd that implements the code to get the address
10347 * of an element in a multi-dimenasional array of @rank dimensions.
10348 * The returned method takes an array as the first argument and then
10349 * @rank indexes for the @rank dimensions.
10352 mono_marshal_get_array_address (int rank, int elem_size)
10355 MonoMethodBuilder *mb;
10356 MonoMethodSignature *sig;
10357 int i, bounds, ind, realidx;
10358 int branch_pos, *branch_positions;
10362 mono_marshal_lock ();
10363 for (i = 0; i < elem_addr_cache_next; ++i) {
10364 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10365 ret = elem_addr_cache [i].method;
10369 mono_marshal_unlock ();
10373 branch_positions = g_new0 (int, rank);
10375 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10377 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10378 sig->ret = &mono_defaults.int_class->byval_arg;
10379 sig->params [0] = &mono_defaults.object_class->byval_arg;
10380 for (i = 0; i < rank; ++i) {
10381 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10384 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
10386 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10387 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10388 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10390 /* bounds = array->bounds; */
10391 mono_mb_emit_ldarg (mb, 0);
10392 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
10393 mono_mb_emit_byte (mb, CEE_LDIND_I);
10394 mono_mb_emit_stloc (mb, bounds);
10396 /* ind is the overall element index, realidx is the partial index in a single dimension */
10397 /* ind = idx0 - bounds [0].lower_bound */
10398 mono_mb_emit_ldarg (mb, 1);
10399 mono_mb_emit_ldloc (mb, bounds);
10400 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10401 mono_mb_emit_byte (mb, CEE_ADD);
10402 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10403 mono_mb_emit_byte (mb, CEE_SUB);
10404 mono_mb_emit_stloc (mb, ind);
10405 /* if (ind >= bounds [0].length) goto exeception; */
10406 mono_mb_emit_ldloc (mb, ind);
10407 mono_mb_emit_ldloc (mb, bounds);
10408 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
10409 mono_mb_emit_byte (mb, CEE_ADD);
10410 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10411 /* note that we use unsigned comparison */
10412 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10414 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10415 * We could also decide to ignore the passed elem_size and get it
10416 * from the array object, to reduce the number of methods we generate:
10417 * the additional cost is 3 memory loads and a non-immediate mul.
10419 for (i = 1; i < rank; ++i) {
10420 /* realidx = idxi - bounds [i].lower_bound */
10421 mono_mb_emit_ldarg (mb, 1 + i);
10422 mono_mb_emit_ldloc (mb, bounds);
10423 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10424 mono_mb_emit_byte (mb, CEE_ADD);
10425 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10426 mono_mb_emit_byte (mb, CEE_SUB);
10427 mono_mb_emit_stloc (mb, realidx);
10428 /* if (realidx >= bounds [i].length) goto exeception; */
10429 mono_mb_emit_ldloc (mb, realidx);
10430 mono_mb_emit_ldloc (mb, bounds);
10431 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10432 mono_mb_emit_byte (mb, CEE_ADD);
10433 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10434 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10435 /* ind = ind * bounds [i].length + realidx */
10436 mono_mb_emit_ldloc (mb, ind);
10437 mono_mb_emit_ldloc (mb, bounds);
10438 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
10439 mono_mb_emit_byte (mb, CEE_ADD);
10440 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10441 mono_mb_emit_byte (mb, CEE_MUL);
10442 mono_mb_emit_ldloc (mb, realidx);
10443 mono_mb_emit_byte (mb, CEE_ADD);
10444 mono_mb_emit_stloc (mb, ind);
10447 /* return array->vector + ind * element_size */
10448 mono_mb_emit_ldarg (mb, 0);
10449 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
10450 mono_mb_emit_ldloc (mb, ind);
10451 mono_mb_emit_icon (mb, elem_size);
10452 mono_mb_emit_byte (mb, CEE_MUL);
10453 mono_mb_emit_byte (mb, CEE_ADD);
10454 mono_mb_emit_byte (mb, CEE_RET);
10456 /* patch the branches to get here and throw */
10457 for (i = 1; i < rank; ++i) {
10458 mono_mb_patch_branch (mb, branch_positions [i]);
10460 mono_mb_patch_branch (mb, branch_pos);
10461 /* throw exception */
10462 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10464 g_free (branch_positions);
10465 ret = mono_mb_create_method (mb, sig, 4);
10468 /* cache the result */
10470 mono_marshal_lock ();
10471 for (i = 0; i < elem_addr_cache_next; ++i) {
10472 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10473 /* FIXME: free ret */
10474 ret = elem_addr_cache [i].method;
10480 ElementAddrWrapperInfo *info;
10482 if (elem_addr_cache_next >= elem_addr_cache_size) {
10483 int new_size = elem_addr_cache_size + 4;
10484 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10485 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10486 g_free (elem_addr_cache);
10487 elem_addr_cache = new_array;
10488 elem_addr_cache_size = new_size;
10490 elem_addr_cache [elem_addr_cache_next].rank = rank;
10491 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10492 elem_addr_cache [elem_addr_cache_next].method = ret;
10493 elem_addr_cache_next ++;
10495 info = mono_image_alloc0 (mono_defaults.corlib, sizeof (ElementAddrWrapperInfo));
10497 info->elem_size = elem_size;
10499 mono_marshal_set_wrapper_info (ret, info);
10501 mono_marshal_unlock ();
10506 mono_marshal_alloc (gulong size)
10511 res = CoTaskMemAlloc (size);
10513 res = g_try_malloc ((gulong)size);
10515 mono_gc_out_of_memory ((gulong)size);
10521 mono_marshal_free (gpointer ptr)
10524 CoTaskMemFree (ptr);
10531 mono_marshal_free_array (gpointer *ptr, int size)
10538 for (i = 0; i < size; i++)
10544 mono_marshal_string_to_utf16 (MonoString *s)
10546 return s ? mono_string_chars (s) : NULL;
10550 mono_marshal_string_to_utf16_copy (MonoString *s)
10555 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
10556 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10557 res [mono_string_length (s)] = 0;
10563 * mono_marshal_set_last_error:
10565 * This function is invoked to set the last error value from a P/Invoke call
10566 * which has SetLastError set.
10569 mono_marshal_set_last_error (void)
10572 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10574 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10579 mono_marshal_set_last_error_windows (int error)
10582 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10587 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10588 gpointer dest, gint32 length)
10593 MONO_ARCH_SAVE_REGS;
10595 MONO_CHECK_ARG_NULL (src);
10596 MONO_CHECK_ARG_NULL (dest);
10598 if (src->obj.vtable->klass->rank != 1)
10599 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10600 if (start_index < 0)
10601 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10603 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10604 if (start_index + length > mono_array_length (src))
10605 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10607 element_size = mono_array_element_size (src->obj.vtable->klass);
10609 /* no references should be involved */
10610 source_addr = mono_array_addr_with_size (src, element_size, start_index);
10612 memcpy (dest, source_addr, length * element_size);
10616 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10617 MonoArray *dest, gint32 length)
10622 MONO_ARCH_SAVE_REGS;
10624 MONO_CHECK_ARG_NULL (src);
10625 MONO_CHECK_ARG_NULL (dest);
10627 if (dest->obj.vtable->klass->rank != 1)
10628 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10629 if (start_index < 0)
10630 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10632 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10633 if (start_index + length > mono_array_length (dest))
10634 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10636 element_size = mono_array_element_size (dest->obj.vtable->klass);
10638 /* no references should be involved */
10639 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
10641 memcpy (dest_addr, src, length * element_size);
10644 #if NO_UNALIGNED_ACCESS
10645 #define RETURN_UNALIGNED(type, addr) \
10648 memcpy(&val, p + offset, sizeof(val)); \
10651 #define WRITE_UNALIGNED(type, addr, val) \
10652 memcpy(addr, &val, sizeof(type))
10654 #define RETURN_UNALIGNED(type, addr) \
10655 return *(type*)(p + offset);
10656 #define WRITE_UNALIGNED(type, addr, val) \
10657 (*(type *)(addr) = (val))
10661 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
10665 MONO_ARCH_SAVE_REGS;
10667 RETURN_UNALIGNED(gpointer, p + offset);
10671 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
10675 MONO_ARCH_SAVE_REGS;
10677 return *(unsigned char*)(p + offset);
10681 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
10685 MONO_ARCH_SAVE_REGS;
10687 RETURN_UNALIGNED(gint16, p + offset);
10691 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
10695 MONO_ARCH_SAVE_REGS;
10697 RETURN_UNALIGNED(gint32, p + offset);
10701 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
10705 MONO_ARCH_SAVE_REGS;
10707 RETURN_UNALIGNED(gint64, p + offset);
10711 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
10715 MONO_ARCH_SAVE_REGS;
10717 *(unsigned char*)(p + offset) = val;
10721 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
10725 MONO_ARCH_SAVE_REGS;
10727 WRITE_UNALIGNED(gpointer, p + offset, val);
10731 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
10735 MONO_ARCH_SAVE_REGS;
10737 WRITE_UNALIGNED(gint16, p + offset, val);
10741 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
10745 MONO_ARCH_SAVE_REGS;
10747 WRITE_UNALIGNED(gint32, p + offset, val);
10751 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
10755 MONO_ARCH_SAVE_REGS;
10757 WRITE_UNALIGNED(gint64, p + offset, val);
10761 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10763 MONO_ARCH_SAVE_REGS;
10768 return mono_string_new (mono_domain_get (), ptr);
10772 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10774 MONO_ARCH_SAVE_REGS;
10777 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10778 g_assert_not_reached ();
10781 return mono_string_new_len (mono_domain_get (), ptr, len);
10786 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10788 MonoDomain *domain = mono_domain_get ();
10792 MONO_ARCH_SAVE_REGS;
10800 return mono_string_new_utf16 (domain, ptr, len);
10804 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10806 MonoDomain *domain = mono_domain_get ();
10808 MONO_ARCH_SAVE_REGS;
10811 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
10812 g_assert_not_reached ();
10815 return mono_string_new_utf16 (domain, ptr, len);
10820 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10822 MONO_ARCH_SAVE_REGS;
10824 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10828 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10834 MONO_ARCH_SAVE_REGS;
10836 MONO_CHECK_ARG_NULL (rtype);
10838 type = rtype->type;
10839 klass = mono_class_from_mono_type (type);
10840 if (!mono_class_init (klass))
10841 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10843 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10845 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10847 MonoException *exc;
10849 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10850 exc = mono_get_exception_argument ("t", msg);
10852 mono_raise_exception (exc);
10856 return mono_class_native_size (klass, NULL);
10860 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10862 MonoMethod *method;
10865 MONO_ARCH_SAVE_REGS;
10867 MONO_CHECK_ARG_NULL (obj);
10868 MONO_CHECK_ARG_NULL (dst);
10870 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10874 pa [2] = &delete_old;
10876 mono_runtime_invoke (method, NULL, pa, NULL);
10880 ptr_to_structure (gpointer src, MonoObject *dst)
10882 MonoMethod *method;
10885 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10890 mono_runtime_invoke (method, NULL, pa, NULL);
10894 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10898 MONO_ARCH_SAVE_REGS;
10900 MONO_CHECK_ARG_NULL (src);
10901 MONO_CHECK_ARG_NULL (dst);
10903 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10905 if (t->type == MONO_TYPE_VALUETYPE) {
10906 MonoException *exc;
10909 tmp = g_strdup_printf ("Destination is a boxed value type.");
10910 exc = mono_get_exception_argument ("dst", tmp);
10913 mono_raise_exception (exc);
10917 ptr_to_structure (src, dst);
10921 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10924 MonoDomain *domain = mono_domain_get ();
10927 MONO_ARCH_SAVE_REGS;
10929 MONO_CHECK_ARG_NULL (src);
10930 MONO_CHECK_ARG_NULL (type);
10932 klass = mono_class_from_mono_type (type->type);
10933 if (!mono_class_init (klass))
10934 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10936 res = mono_object_new (domain, klass);
10938 ptr_to_structure (src, res);
10944 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10946 MonoMarshalType *info;
10949 int match_index = -1;
10951 MONO_ARCH_SAVE_REGS;
10953 MONO_CHECK_ARG_NULL (type);
10954 MONO_CHECK_ARG_NULL (field_name);
10956 fname = mono_string_to_utf8 (field_name);
10957 klass = mono_class_from_mono_type (type->type);
10958 if (!mono_class_init (klass))
10959 mono_raise_exception (mono_class_get_exception_for_failure (klass));
10961 while (klass && match_index == -1) {
10962 MonoClassField* field;
10964 gpointer iter = NULL;
10965 while ((field = mono_class_get_fields (klass, &iter))) {
10966 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10968 if (!strcmp (fname, mono_field_get_name (field))) {
10975 if (match_index == -1)
10976 klass = klass->parent;
10981 if(match_index == -1) {
10982 MonoException* exc;
10985 /* Get back original class instance */
10986 klass = mono_class_from_mono_type (type->type);
10988 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10989 exc = mono_get_exception_argument ("fieldName", tmp);
10992 mono_raise_exception ((MonoException*)exc);
10995 info = mono_marshal_load_type_info (klass);
10996 return info->fields [match_index].offset;
11000 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11005 tres = mono_string_to_utf8 (string);
11009 len = strlen (tres) + 1;
11010 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
11011 memcpy (ret, tres, len);
11016 return mono_string_to_utf8 (string);
11021 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11023 MONO_ARCH_SAVE_REGS;
11025 if (string == NULL)
11028 #ifdef TARGET_WIN32
11029 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
11030 ((mono_string_length (string) + 1) * 2);
11032 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
11034 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11035 res [mono_string_length (string)] = 0;
11041 mono_struct_delete_old (MonoClass *klass, char *ptr)
11043 MonoMarshalType *info;
11046 info = mono_marshal_load_type_info (klass);
11048 for (i = 0; i < info->num_fields; i++) {
11049 MonoMarshalNative ntype;
11050 MonoMarshalConv conv;
11051 MonoType *ftype = info->fields [i].field->type;
11054 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11057 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11058 klass->unicode, &conv);
11060 cpos = ptr + info->fields [i].offset;
11063 case MONO_MARSHAL_CONV_NONE:
11064 if (MONO_TYPE_ISSTRUCT (ftype)) {
11065 mono_struct_delete_old (ftype->data.klass, cpos);
11069 case MONO_MARSHAL_CONV_STR_LPWSTR:
11070 /* We assume this field points inside a MonoString */
11072 case MONO_MARSHAL_CONV_STR_LPTSTR:
11073 #ifdef TARGET_WIN32
11074 /* We assume this field points inside a MonoString
11078 case MONO_MARSHAL_CONV_STR_LPSTR:
11079 case MONO_MARSHAL_CONV_STR_BSTR:
11080 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11081 case MONO_MARSHAL_CONV_STR_TBSTR:
11082 mono_marshal_free (*(gpointer *)cpos);
11092 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11096 MONO_ARCH_SAVE_REGS;
11098 MONO_CHECK_ARG_NULL (src);
11099 MONO_CHECK_ARG_NULL (type);
11101 klass = mono_class_from_mono_type (type->type);
11102 if (!mono_class_init (klass))
11103 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11105 mono_struct_delete_old (klass, (char *)src);
11109 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
11113 MONO_ARCH_SAVE_REGS;
11115 if ((gulong)size == 0)
11116 /* This returns a valid pointer for size 0 on MS.NET */
11120 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
11122 res = g_try_malloc ((gulong)size);
11125 mono_gc_out_of_memory ((gulong)size);
11131 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
11136 mono_gc_out_of_memory ((gulong)size);
11141 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
11143 res = g_try_realloc (ptr, (gulong)size);
11146 mono_gc_out_of_memory ((gulong)size);
11152 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11154 MONO_ARCH_SAVE_REGS;
11164 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11166 MONO_ARCH_SAVE_REGS;
11169 return CoTaskMemAlloc (size);
11171 return g_try_malloc ((gulong)size);
11176 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11178 MONO_ARCH_SAVE_REGS;
11181 CoTaskMemFree (ptr);
11188 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11190 MONO_ARCH_SAVE_REGS;
11193 return CoTaskMemRealloc (ptr, size);
11195 return g_try_realloc (ptr, (gulong)size);
11200 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11202 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11206 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11208 MonoClass *klass = mono_type_get_class (type->type);
11209 if (!mono_class_init (klass))
11210 mono_raise_exception (mono_class_get_exception_for_failure (klass));
11212 return mono_ftnptr_to_delegate (klass, ftn);
11216 * mono_marshal_is_loading_type_info:
11218 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11222 mono_marshal_is_loading_type_info (MonoClass *klass)
11224 GSList *loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11226 return g_slist_find (loads_list, klass) != NULL;
11230 * mono_marshal_load_type_info:
11232 * Initialize klass->marshal_info using information from metadata. This function can
11233 * recursively call itself, and the caller is responsible to avoid that by calling
11234 * mono_marshal_is_loading_type_info () beforehand.
11236 * LOCKING: Acquires the loader lock.
11239 mono_marshal_load_type_info (MonoClass* klass)
11242 guint32 native_size = 0, min_align = 1, packing;
11243 MonoMarshalType *info;
11244 MonoClassField* field;
11247 GSList *loads_list;
11249 g_assert (klass != NULL);
11251 if (klass->marshal_info)
11252 return klass->marshal_info;
11254 if (!klass->inited)
11255 mono_class_init (klass);
11257 mono_loader_lock ();
11259 if (klass->marshal_info) {
11260 mono_loader_unlock ();
11261 return klass->marshal_info;
11265 * This function can recursively call itself, so we keep the list of classes which are
11266 * under initialization in a TLS list.
11268 g_assert (!mono_marshal_is_loading_type_info (klass));
11269 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11270 loads_list = g_slist_prepend (loads_list, klass);
11271 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11274 while ((field = mono_class_get_fields (klass, &iter))) {
11275 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11277 if (mono_field_is_deleted (field))
11282 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11284 /* The mempool is protected by the loader lock */
11285 info = mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11286 info->num_fields = count;
11288 /* Try to find a size for this type in metadata */
11289 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11291 if (klass->parent) {
11292 int parent_size = mono_class_native_size (klass->parent, NULL);
11294 /* Add parent size to real size */
11295 native_size += parent_size;
11296 info->native_size = parent_size;
11299 packing = klass->packing_size ? klass->packing_size : 8;
11302 while ((field = mono_class_get_fields (klass, &iter))) {
11306 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11309 if (mono_field_is_deleted (field))
11311 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11312 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11313 NULL, NULL, &info->fields [j].mspec);
11315 info->fields [j].field = field;
11317 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11318 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11319 /* This field is a hack inserted by MCS to empty structures */
11324 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11325 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11326 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11327 &align, TRUE, klass->unicode);
11328 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11329 min_align = MAX (align, min_align);
11330 info->fields [j].offset = info->native_size;
11331 info->fields [j].offset += align - 1;
11332 info->fields [j].offset &= ~(align - 1);
11333 info->native_size = info->fields [j].offset + size;
11335 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11336 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11337 &align, TRUE, klass->unicode);
11338 min_align = packing;
11339 info->fields [j].offset = field->offset - sizeof (MonoObject);
11340 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11346 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11347 info->native_size = MAX (native_size, info->native_size);
11349 * If the provided Size is equal or larger than the calculated size, and there
11350 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11352 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT)
11353 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11357 if (info->native_size & (min_align - 1)) {
11358 info->native_size += min_align - 1;
11359 info->native_size &= ~(min_align - 1);
11362 info->min_align = min_align;
11364 /* Update the class's blittable info, if the layouts don't match */
11365 if (info->native_size != mono_class_value_size (klass, NULL))
11366 klass->blittable = FALSE;
11368 /* If this is an array type, ensure that we have element info */
11369 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11370 mono_marshal_load_type_info (klass->element_class);
11373 loads_list = mono_native_tls_get_value (load_type_info_tls_id);
11374 loads_list = g_slist_remove (loads_list, klass);
11375 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11377 /*We do double-checking locking on marshal_info */
11378 mono_memory_barrier ();
11380 klass->marshal_info = info;
11382 mono_loader_unlock ();
11384 return klass->marshal_info;
11388 * mono_class_native_size:
11391 * Returns: the native size of an object instance (when marshaled
11392 * to unmanaged code)
11395 mono_class_native_size (MonoClass *klass, guint32 *align)
11397 if (!klass->marshal_info) {
11398 if (mono_marshal_is_loading_type_info (klass)) {
11403 mono_marshal_load_type_info (klass);
11408 *align = klass->marshal_info->min_align;
11410 return klass->marshal_info->native_size;
11413 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
11414 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
11415 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
11416 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
11419 * mono_type_native_stack_size:
11420 * @t: the type to return the size it uses on the stack
11422 * Returns: the number of bytes required to hold an instance of this
11423 * type on the native stack
11426 mono_type_native_stack_size (MonoType *t, guint32 *align)
11430 g_assert (t != NULL);
11436 *align = sizeof (gpointer);
11437 return sizeof (gpointer);
11441 case MONO_TYPE_BOOLEAN:
11442 case MONO_TYPE_CHAR:
11453 case MONO_TYPE_STRING:
11454 case MONO_TYPE_OBJECT:
11455 case MONO_TYPE_CLASS:
11456 case MONO_TYPE_SZARRAY:
11457 case MONO_TYPE_PTR:
11458 case MONO_TYPE_FNPTR:
11459 case MONO_TYPE_ARRAY:
11460 *align = sizeof (gpointer);
11461 return sizeof (gpointer);
11466 *align = ALIGNMENT (gdouble);
11470 *align = ALIGNMENT (glong);
11472 case MONO_TYPE_GENERICINST:
11473 if (!mono_type_generic_inst_is_valuetype (t)) {
11474 *align = sizeof (gpointer);
11475 return sizeof (gpointer);
11478 case MONO_TYPE_TYPEDBYREF:
11479 case MONO_TYPE_VALUETYPE: {
11481 MonoClass *klass = mono_class_from_mono_type (t);
11483 if (klass->enumtype)
11484 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11486 size = mono_class_native_size (klass, align);
11487 *align = *align + 3;
11497 g_error ("type 0x%02x unknown", t->type);
11503 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11504 gboolean as_field, gboolean unicode)
11506 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11509 switch (native_type) {
11510 case MONO_NATIVE_BOOLEAN:
11513 case MONO_NATIVE_I1:
11514 case MONO_NATIVE_U1:
11517 case MONO_NATIVE_I2:
11518 case MONO_NATIVE_U2:
11519 case MONO_NATIVE_VARIANTBOOL:
11522 case MONO_NATIVE_I4:
11523 case MONO_NATIVE_U4:
11524 case MONO_NATIVE_ERROR:
11527 case MONO_NATIVE_I8:
11528 case MONO_NATIVE_U8:
11529 *align = ALIGNMENT(guint64);
11531 case MONO_NATIVE_R4:
11534 case MONO_NATIVE_R8:
11535 *align = ALIGNMENT(double);
11537 case MONO_NATIVE_INT:
11538 case MONO_NATIVE_UINT:
11539 case MONO_NATIVE_LPSTR:
11540 case MONO_NATIVE_LPWSTR:
11541 case MONO_NATIVE_LPTSTR:
11542 case MONO_NATIVE_BSTR:
11543 case MONO_NATIVE_ANSIBSTR:
11544 case MONO_NATIVE_TBSTR:
11545 case MONO_NATIVE_LPARRAY:
11546 case MONO_NATIVE_SAFEARRAY:
11547 case MONO_NATIVE_IUNKNOWN:
11548 case MONO_NATIVE_IDISPATCH:
11549 case MONO_NATIVE_INTERFACE:
11550 case MONO_NATIVE_ASANY:
11551 case MONO_NATIVE_FUNC:
11552 case MONO_NATIVE_LPSTRUCT:
11553 *align = ALIGNMENT(gpointer);
11554 return sizeof (gpointer);
11555 case MONO_NATIVE_STRUCT:
11556 klass = mono_class_from_mono_type (type);
11557 if (klass == mono_defaults.object_class &&
11558 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11562 return mono_class_native_size (klass, align);
11563 case MONO_NATIVE_BYVALTSTR: {
11564 int esize = unicode ? 2: 1;
11567 return mspec->data.array_data.num_elem * esize;
11569 case MONO_NATIVE_BYVALARRAY: {
11570 // FIXME: Have to consider ArraySubType
11572 klass = mono_class_from_mono_type (type);
11573 if (klass->element_class == mono_defaults.char_class) {
11574 esize = unicode ? 2 : 1;
11577 esize = mono_class_native_size (klass->element_class, align);
11580 return mspec->data.array_data.num_elem * esize;
11582 case MONO_NATIVE_CUSTOM:
11583 *align = sizeof (gpointer);
11584 return sizeof (gpointer);
11586 case MONO_NATIVE_CURRENCY:
11587 case MONO_NATIVE_VBBYREFSTR:
11589 g_error ("native type %02x not implemented", native_type);
11592 g_assert_not_reached ();
11597 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11605 t = &o->vtable->klass->byval_arg;
11609 case MONO_TYPE_PTR:
11612 case MONO_TYPE_BOOLEAN:
11615 case MONO_TYPE_CHAR:
11620 return mono_object_unbox (o);
11622 case MONO_TYPE_STRING:
11623 switch (string_encoding) {
11624 case MONO_NATIVE_LPWSTR:
11625 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11627 case MONO_NATIVE_LPSTR:
11628 return mono_string_to_lpstr ((MonoString*)o);
11631 g_warning ("marshaling conversion %d not implemented", string_encoding);
11632 g_assert_not_reached ();
11635 case MONO_TYPE_CLASS:
11636 case MONO_TYPE_VALUETYPE: {
11637 MonoMethod *method;
11640 MonoBoolean delete_old = FALSE;
11642 klass = t->data.klass;
11644 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11647 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11648 klass->blittable || klass->enumtype))
11649 return mono_object_unbox (o);
11651 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
11653 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11654 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11658 pa [2] = &delete_old;
11660 mono_runtime_invoke (method, NULL, pa, NULL);
11667 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11673 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11681 t = &o->vtable->klass->byval_arg;
11683 case MONO_TYPE_STRING:
11684 switch (string_encoding) {
11685 case MONO_NATIVE_LPWSTR:
11686 case MONO_NATIVE_LPSTR:
11687 mono_marshal_free (ptr);
11690 g_warning ("marshaling conversion %d not implemented", string_encoding);
11691 g_assert_not_reached ();
11694 case MONO_TYPE_CLASS:
11695 case MONO_TYPE_VALUETYPE: {
11696 klass = t->data.klass;
11698 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11699 klass->blittable || klass->enumtype))
11702 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11703 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11709 mono_runtime_invoke (method, NULL, pa, NULL);
11712 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11713 mono_struct_delete_old (klass, ptr);
11716 mono_marshal_free (ptr);
11725 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11727 MonoMethodSignature *sig, *csig;
11728 MonoMethodBuilder *mb;
11732 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11733 mb->method->slot = -1;
11735 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11736 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11738 sig = mono_method_signature (method);
11739 csig = signature_dup (method->klass->image, sig);
11740 csig->generic_param_count = 0;
11742 mono_mb_emit_ldarg (mb, 0);
11743 for (i = 0; i < csig->param_count; i++)
11744 mono_mb_emit_ldarg (mb, i + 1);
11745 mono_mb_emit_managed_call (mb, method, NULL);
11746 mono_mb_emit_byte (mb, CEE_RET);
11748 /* We can corlib internal methods */
11749 mb->skip_visibility = TRUE;
11751 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11759 * The mono_win32_compat_* functions are implementations of inline
11760 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11761 * although not exported by kernel32.
11763 * We map the appropiate kernel32 entries to these functions using
11764 * dllmaps declared in the global etc/mono/config.
11768 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11770 if (!dest || !source)
11773 memcpy (dest, source, length);
11777 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11779 memset (dest, fill, length);
11783 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11785 if (!dest || !source)
11788 memmove (dest, source, length);
11792 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11794 memset (dest, 0, length);
11798 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11803 for (i = 0; i < len; ++i)
11807 g_assert (i < len);
11810 while (byte && !(byte & 1))
11812 g_assert (byte == 1);
11815 *bitmask = buf [i];
11819 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11821 MonoMethodBuilder *mb;
11822 MonoMethodSignature *sig, *csig;
11823 MonoExceptionClause *clause;
11828 int i, param_count, sig_size, pos_leave;
11832 klass = method->klass;
11833 image = method->klass->image;
11834 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11836 if ((res = mono_marshal_find_in_cache (cache, method)))
11839 sig = mono_method_signature (method);
11840 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11842 /* add "this" and exception param */
11843 param_count = sig->param_count + sig->hasthis + 1;
11845 /* dup & extend signature */
11846 csig = mono_metadata_signature_alloc (image, param_count);
11847 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11848 memcpy (csig, sig, sig_size);
11849 csig->param_count = param_count;
11852 csig->call_convention = MONO_CALL_DEFAULT;
11854 if (sig->hasthis) {
11856 csig->params [0] = &klass->byval_arg;
11857 /* move params up by one */
11858 for (i = 0; i < sig->param_count; i++)
11859 csig->params [i + 1] = sig->params [i];
11862 /* setup exception param as byref+[out] */
11863 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11864 &mono_defaults.exception_class->byval_arg);
11865 csig->params [param_count - 1]->byref = 1;
11866 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11868 /* convert struct return to object */
11869 if (MONO_TYPE_ISSTRUCT (sig->ret))
11870 csig->ret = &mono_defaults.object_class->byval_arg;
11872 /* local 0 (temp for exception object) */
11873 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11875 /* local 1 (temp for result) */
11876 if (!MONO_TYPE_IS_VOID (sig->ret))
11877 mono_mb_add_local (mb, sig->ret);
11879 /* clear exception arg */
11880 mono_mb_emit_ldarg (mb, param_count - 1);
11881 mono_mb_emit_byte (mb, CEE_LDNULL);
11882 mono_mb_emit_byte (mb, CEE_STIND_REF);
11885 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11886 clause->try_offset = mono_mb_get_label (mb);
11888 /* push method's args */
11889 for (i = 0; i < param_count - 1; i++) {
11893 mono_mb_emit_ldarg (mb, i);
11895 /* get the byval type of the param */
11896 klass = mono_class_from_mono_type (csig->params [i]);
11897 type = &klass->byval_arg;
11899 /* unbox struct args */
11900 if (MONO_TYPE_ISSTRUCT (type)) {
11901 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11903 /* byref args & and the "this" arg must remain a ptr.
11904 Otherwise make a copy of the value type */
11905 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11906 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11908 csig->params [i] = &mono_defaults.object_class->byval_arg;
11913 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11914 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11916 mono_mb_emit_op (mb, CEE_CALL, method);
11918 /* save result at local 1 */
11919 if (!MONO_TYPE_IS_VOID (sig->ret))
11920 mono_mb_emit_stloc (mb, 1);
11922 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11925 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11926 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11927 clause->data.catch_class = mono_defaults.object_class;
11929 clause->handler_offset = mono_mb_get_label (mb);
11931 /* store exception at local 0 */
11932 mono_mb_emit_stloc (mb, 0);
11933 mono_mb_emit_ldarg (mb, param_count - 1);
11934 mono_mb_emit_ldloc (mb, 0);
11935 mono_mb_emit_byte (mb, CEE_STIND_REF);
11936 mono_mb_emit_branch (mb, CEE_LEAVE);
11938 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11940 mono_mb_set_clauses (mb, 1, clause);
11942 mono_mb_patch_branch (mb, pos_leave);
11945 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11946 mono_mb_emit_ldloc (mb, 1);
11948 /* box the return value */
11949 if (MONO_TYPE_ISSTRUCT (sig->ret))
11950 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11953 mono_mb_emit_byte (mb, CEE_RET);
11955 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11962 * mono_marshal_free_dynamic_wrappers:
11964 * Free wrappers of the dynamic method METHOD.
11967 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11969 MonoImage *image = method->klass->image;
11971 g_assert (method->dynamic);
11973 /* This could be called during shutdown */
11974 if (marshal_mutex_initialized)
11975 mono_marshal_lock ();
11977 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11978 * they could be shared with other methods ?
11980 if (image->runtime_invoke_direct_cache)
11981 g_hash_table_remove (image->runtime_invoke_direct_cache, method);
11982 if (image->delegate_bound_static_invoke_cache)
11983 g_hash_table_foreach_remove (image->delegate_bound_static_invoke_cache, signature_method_pair_matches_method, method);
11984 if (image->delegate_abstract_invoke_cache)
11985 g_hash_table_foreach_remove (image->delegate_abstract_invoke_cache, signature_method_pair_matches_method, method);
11987 if (marshal_mutex_initialized)
11988 mono_marshal_unlock ();
11992 * mono_marshal_free_inflated_wrappers:
11994 * Free wrappers of the inflated method METHOD.
11998 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
12000 SignatureMethodPair *pair = (SignatureMethodPair*)key;
12001 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
12003 return mono_metadata_signature_equal (pair->sig, sig);
12007 mono_marshal_free_inflated_wrappers (MonoMethod *method)
12009 MonoMethodSignature *sig = method->signature;
12011 g_assert (method->is_inflated);
12013 /* Ignore calls occuring late during cleanup. */
12014 if (!marshal_mutex_initialized)
12017 mono_marshal_lock ();
12019 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12020 * they could be shared with other methods ?
12024 * indexed by MonoMethodSignature
12026 /* FIXME: This could remove unrelated wrappers as well */
12027 if (sig && method->klass->image->delegate_begin_invoke_cache)
12028 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
12029 if (sig && method->klass->image->delegate_end_invoke_cache)
12030 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
12031 if (sig && method->klass->image->delegate_invoke_cache)
12032 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
12033 if (sig && method->klass->image->runtime_invoke_cache)
12034 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
12037 * indexed by SignatureMethodPair
12039 if (sig && method->klass->image->delegate_abstract_invoke_cache)
12040 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
12041 signature_method_pair_matches_signature, (gpointer)sig);
12043 if (sig && method->klass->image->delegate_bound_static_invoke_cache)
12044 g_hash_table_foreach_remove (method->klass->image->delegate_bound_static_invoke_cache,
12045 signature_method_pair_matches_signature, (gpointer)sig);
12048 * indexed by MonoMethod pointers
12050 if (method->klass->image->runtime_invoke_direct_cache)
12051 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
12052 if (method->klass->image->managed_wrapper_cache)
12053 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
12054 if (method->klass->image->native_wrapper_cache)
12055 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
12056 if (method->klass->image->remoting_invoke_cache)
12057 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
12058 if (method->klass->image->synchronized_cache)
12059 g_hash_table_remove (method->klass->image->synchronized_cache, method);
12060 if (method->klass->image->unbox_wrapper_cache)
12061 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
12062 if (method->klass->image->cominterop_invoke_cache)
12063 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
12064 if (method->klass->image->cominterop_wrapper_cache)
12065 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
12066 if (method->klass->image->thunk_invoke_cache)
12067 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
12069 mono_marshal_unlock ();