2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
20 #include "metadata/marshal.h"
21 #include "metadata/method-builder.h"
22 #include "metadata/tabledefs.h"
23 #include "metadata/exception.h"
24 #include "metadata/appdomain.h"
25 #include "mono/metadata/debug-helpers.h"
26 #include "mono/metadata/threadpool.h"
27 #include "mono/metadata/threads.h"
28 #include "mono/metadata/monitor.h"
29 #include "mono/metadata/metadata-internals.h"
30 #include "mono/metadata/domain-internals.h"
31 #include "mono/metadata/gc-internal.h"
32 #include "mono/metadata/threads-types.h"
33 #include "mono/metadata/string-icalls.h"
34 #include "mono/metadata/attrdefs.h"
35 #include "mono/metadata/gc-internal.h"
36 #include "mono/metadata/cominterop.h"
37 #include "mono/utils/mono-counters.h"
41 /* #define DEBUG_RUNTIME_CODE */
43 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
47 MONO_MARSHAL_NONE, /* No marshalling needed */
48 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
49 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
50 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
51 } MonoXDomainMarshalType;
54 #include "mono/cil/opcode.def"
59 struct _MonoRemotingMethods {
61 MonoMethod *invoke_with_check;
62 MonoMethod *xdomain_invoke;
63 MonoMethod *xdomain_dispatch;
66 typedef struct _MonoRemotingMethods MonoRemotingMethods;
69 * This mutex protects the various marshalling related caches in MonoImage
70 * and a few other data structures static to this file.
71 * Note that when this lock is held it is not possible to take other runtime
72 * locks like the loader lock.
74 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
75 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
76 static CRITICAL_SECTION marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static guint32 last_error_tls_id;
81 static guint32 load_type_info_tls_id;
84 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc);
87 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
90 mono_struct_delete_old (MonoClass *klass, char *ptr);
93 mono_marshal_string_to_utf16 (MonoString *s);
96 mono_marshal_string_to_utf16_copy (MonoString *s);
99 mono_string_to_lpstr (MonoString *string_obj);
101 static MonoStringBuilder *
102 mono_string_utf8_to_builder2 (char *text);
105 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
108 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
111 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
113 static MonoAsyncResult *
114 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
117 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
120 mono_marshal_xdomain_copy_value (MonoObject *val);
123 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
126 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
129 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
132 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
134 static MonoReflectionType *
135 type_from_handle (MonoType *handle);
138 mono_marshal_set_last_error_windows (int error);
140 static void init_safe_handle (void);
142 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
143 static MonoMethod *sh_dangerous_add_ref;
144 static MonoMethod *sh_dangerous_release;
150 sh_dangerous_add_ref = mono_class_get_method_from_name (
151 mono_defaults.safehandle_class, "DangerousAddRef", 1);
152 sh_dangerous_release = mono_class_get_method_from_name (
153 mono_defaults.safehandle_class, "DangerousRelease", 0);
157 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
159 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
161 mono_register_jit_icall (func, name, sig, save);
164 static MonoMethodSignature*
165 signature_dup (MonoImage *image, MonoMethodSignature *sig)
167 MonoMethodSignature *res;
170 res = mono_metadata_signature_alloc (image, sig->param_count);
171 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
172 memcpy (res, sig, sigsize);
178 mono_signature_no_pinvoke (MonoMethod *method)
180 MonoMethodSignature *sig = mono_method_signature (method);
182 sig = signature_dup (method->klass->image, sig);
183 sig->pinvoke = FALSE;
190 mono_marshal_init (void)
192 static gboolean module_initialized = FALSE;
194 if (!module_initialized) {
195 module_initialized = TRUE;
196 InitializeCriticalSection (&marshal_mutex);
197 marshal_mutex_initialized = TRUE;
198 last_error_tls_id = TlsAlloc ();
199 load_type_info_tls_id = TlsAlloc ();
201 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
202 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
203 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
204 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
205 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
206 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
207 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
208 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
209 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
210 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
211 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
212 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
213 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
214 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
215 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
216 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
217 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
218 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
219 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
220 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
221 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
222 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
223 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
224 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
225 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
226 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
227 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
228 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
229 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
230 register_icall (g_free, "g_free", "void ptr", FALSE);
231 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
232 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
233 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
234 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
235 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
236 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
237 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
238 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
239 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
240 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
241 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
242 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
243 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
244 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
245 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
247 mono_cominterop_init ();
252 mono_marshal_cleanup (void)
254 mono_cominterop_cleanup ();
256 TlsFree (load_type_info_tls_id);
257 TlsFree (last_error_tls_id);
258 DeleteCriticalSection (&marshal_mutex);
259 marshal_mutex_initialized = FALSE;
262 MonoClass *byte_array_class;
263 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
264 static MonoMethod *method_set_context, *method_get_context;
265 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
268 mono_remoting_marshal_init (void)
272 static gboolean module_initialized = FALSE;
274 if (!module_initialized) {
275 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
276 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
277 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
278 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
280 klass = mono_defaults.real_proxy_class;
281 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
283 klass = mono_defaults.exception_class;
284 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
286 klass = mono_defaults.thread_class;
287 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
289 klass = mono_defaults.appdomain_class;
290 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
291 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
293 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
294 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
296 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
297 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
299 module_initialized = TRUE;
304 mono_delegate_to_ftnptr (MonoDelegate *delegate)
306 MonoMethod *method, *wrapper;
308 MonoObject **target_loc;
313 if (delegate->delegate_trampoline)
314 return delegate->delegate_trampoline;
316 klass = ((MonoObject *)delegate)->vtable->klass;
317 g_assert (klass->delegate);
319 method = delegate->method;
321 if (mono_method_signature (method)->pinvoke) {
322 const char *exc_class, *exc_arg;
325 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
327 g_assert (exc_class);
328 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
333 if (delegate->target) {
334 /* Produce a location which can be embedded in JITted code */
335 target_loc = mono_gc_alloc_fixed (sizeof (MonoObject*), NULL);
336 *target_loc = delegate->target;
341 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_loc);
343 delegate->delegate_trampoline = mono_compile_method (wrapper);
345 // Add the delegate to the delegate hash table
346 delegate_hash_table_add (delegate, target_loc);
348 /* when the object is collected, collect the dynamic method, too */
349 mono_object_register_finalizer ((MonoObject*)delegate);
351 return delegate->delegate_trampoline;
355 * this hash table maps from a delegate trampoline object to a weak reference
356 * of the delegate. As an optimizations with a non-moving GC we store the
357 * object pointer itself, otherwise we use a GC handle.
359 static GHashTable *delegate_hash_table;
360 /* Contains root locations pointing to the this arguments of delegates */
361 static MonoGHashTable *delegate_target_locations;
364 delegate_hash_table_new (void) {
365 return g_hash_table_new (NULL, NULL);
369 delegate_hash_table_remove (MonoDelegate *d)
371 MonoObject **target_loc;
372 #ifdef HAVE_MOVING_COLLECTOR
375 mono_marshal_lock ();
376 if (delegate_hash_table == NULL)
377 delegate_hash_table = delegate_hash_table_new ();
378 #ifdef HAVE_MOVING_COLLECTOR
379 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
381 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
382 if (delegate_target_locations)
383 target_loc = mono_g_hash_table_lookup (delegate_target_locations, d->delegate_trampoline);
387 mono_g_hash_table_remove (delegate_target_locations, d->delegate_trampoline);
388 mono_marshal_unlock ();
390 mono_gc_free_fixed (target_loc);
392 #ifdef HAVE_MOVING_COLLECTOR
393 mono_gchandle_free (gchandle);
398 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc)
400 #ifdef HAVE_MOVING_COLLECTOR
401 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
402 guint32 old_gchandle;
404 mono_marshal_lock ();
405 if (delegate_hash_table == NULL)
406 delegate_hash_table = delegate_hash_table_new ();
407 if (delegate_target_locations == NULL) {
408 /* Has to be conservative as the values are not object references */
409 delegate_target_locations = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_CONSERVATIVE_GC);
410 MONO_GC_REGISTER_ROOT (delegate_target_locations);
412 #ifdef HAVE_MOVING_COLLECTOR
413 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
414 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
416 mono_gchandle_free (old_gchandle);
418 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
421 /* This keeps target_loc alive for Boehm */
422 mono_g_hash_table_insert (delegate_target_locations, d->delegate_trampoline, target_loc);
423 mono_marshal_unlock ();
427 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
429 #ifdef HAVE_MOVING_COLLECTOR
437 mono_marshal_lock ();
438 if (delegate_hash_table == NULL)
439 delegate_hash_table = delegate_hash_table_new ();
441 #ifdef HAVE_MOVING_COLLECTOR
442 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
443 mono_marshal_unlock ();
445 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
449 d = g_hash_table_lookup (delegate_hash_table, ftn);
450 mono_marshal_unlock ();
453 /* This is a native function, so construct a delegate for it */
454 static MonoClass *UnmanagedFunctionPointerAttribute;
455 MonoMethodSignature *sig;
457 MonoMarshalSpec **mspecs;
458 MonoCustomAttrInfo *cinfo;
459 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
460 MonoMethod *invoke = mono_get_delegate_invoke (klass);
461 MonoMethodPInvoke piinfo;
464 memset (&piinfo, 0, sizeof (piinfo));
465 if (!UnmanagedFunctionPointerAttribute)
466 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
468 /* The attribute is only available in Net 2.0 */
469 if (UnmanagedFunctionPointerAttribute) {
471 * The pinvoke attributes are stored in a real custom attribute so we have to
474 cinfo = mono_custom_attrs_from_class (klass);
476 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
478 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
481 mono_custom_attrs_free (cinfo);
485 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
486 mono_method_get_marshal_info (invoke, mspecs);
487 /* Freed below so don't alloc from mempool */
488 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
491 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
493 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
495 mono_metadata_free_marshal_spec (mspecs [i]);
499 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
500 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
503 if (d->object.vtable->domain != mono_domain_get ())
504 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
510 mono_delegate_free_ftnptr (MonoDelegate *delegate)
515 delegate_hash_table_remove (delegate);
517 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
519 if (!delegate->target) {
520 /* The wrapper method is shared between delegates -> no need to free it */
525 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
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)
548 /* fixme: maybe we need to make a copy */
549 return array->vector;
553 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
555 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
557 if (elclass == mono_defaults.byte_class) {
558 GError *error = NULL;
562 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
565 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
569 g_error_free (error);
572 g_assert_not_reached ();
576 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
578 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
580 if (elclass == mono_defaults.byte_class) {
582 GError *error = NULL;
584 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
586 MonoException *exc = mono_get_exception_argument ("string", error->message);
587 g_error_free (error);
588 mono_raise_exception (exc);
591 memcpy (native_arr, as, MIN (strlen (as), elnum));
594 g_assert_not_reached ();
599 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
601 GError *error = NULL;
611 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
613 if (items_written > mono_stringbuilder_capacity (sb))
614 items_written = mono_stringbuilder_capacity (sb);
617 if (! sb->str || sb->str == sb->cached_str) {
618 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
619 sb->cached_str = NULL;
622 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
623 sb->length = items_written;
625 g_error_free (error);
631 mono_string_utf8_to_builder2 (char *text)
634 MonoStringBuilder *sb;
635 static MonoClass *string_builder_class;
636 static MonoMethod *sb_ctor;
643 if (!string_builder_class) {
644 MonoMethodDesc *desc;
646 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
647 g_assert (string_builder_class);
648 desc = mono_method_desc_new (":.ctor(int)", FALSE);
649 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
651 mono_method_desc_free (desc);
656 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
659 mono_runtime_invoke (sb_ctor, sb, args, &exc);
662 mono_string_utf8_to_builder (sb, text);
668 * FIXME: This routine does not seem to do what it seems to do
669 * the @text is never copied into the string builder
672 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
679 g_assert (mono_string_chars (sb->str) == text);
681 for (len = 0; text [len] != 0; ++len)
688 * mono_string_builder_to_utf8:
689 * @sb: the string builder
691 * Converts to utf8 the contents of the MonoStringBuilder.
693 * Returns: a utf8 string with the contents of the StringBuilder.
695 * The return value must be released with g_free.
698 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
700 GError *error = NULL;
701 gchar *tmp, *res = NULL;
706 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
708 * The sb could have been allocated with the default capacity and be empty.
709 * we need to alloc a buffer of the default capacity in this case.
711 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
712 sb->cached_str = NULL;
715 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
717 g_error_free (error);
718 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
720 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
721 memcpy (res, tmp, sb->length + 1);
729 * mono_string_builder_to_utf16:
730 * @sb: the string builder
732 * Converts to utf16 the contents of the MonoStringBuilder.
734 * Returns: a utf16 string with the contents of the StringBuilder.
736 * The return value must not be freed.
739 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
747 * The stringbuilder might not have ownership of this string. If this is
748 * the case, we must duplicate the string, so that we don't munge immutable
751 if (sb->str == sb->cached_str) {
753 * The sb could have been allocated with the default capacity and be empty.
754 * we need to alloc a buffer of the default capacity in this case.
756 if (sb->str->length == 0)
757 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
759 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
760 sb->cached_str = NULL;
763 return mono_string_chars (sb->str);
767 mono_string_to_lpstr (MonoString *s)
769 #ifdef PLATFORM_WIN32
772 GError *error = NULL;
778 as = CoTaskMemAlloc (1);
783 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
785 MonoException *exc = mono_get_exception_argument ("string", error->message);
786 g_error_free (error);
787 mono_raise_exception(exc);
790 as = CoTaskMemAlloc (len + 1);
791 memcpy (as, tmp, len + 1);
796 return mono_string_to_utf8 (s);
801 mono_string_to_ansibstr (MonoString *string_obj)
803 g_error ("UnmanagedMarshal.BStr is not implemented.");
808 * mono_string_to_byvalstr:
809 * @dst: Where to store the null-terminated utf8 decoded string.
810 * @src: the MonoString to copy.
811 * @size: the maximum number of bytes to copy.
813 * Copies the MonoString pointed to by @src as a utf8 string
814 * into @dst, it copies at most @size bytes into the destination.
817 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
822 g_assert (dst != NULL);
825 memset (dst, 0, size);
829 s = mono_string_to_utf8 (src);
830 len = MIN (size, strlen (s));
833 memcpy (dst, s, len);
838 * mono_string_to_byvalwstr:
839 * @dst: Where to store the null-terminated utf16 decoded string.
840 * @src: the MonoString to copy.
841 * @size: the maximum number of bytes to copy.
843 * Copies the MonoString pointed to by @src as a utf16 string into
844 * @dst, it copies at most @size bytes into the destination (including
845 * a terminating 16-bit zero terminator).
848 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
852 g_assert (dst != NULL);
856 memset (dst, 0, size * 2);
860 len = MIN (size, (mono_string_length (src)));
861 memcpy (dst, mono_string_chars (src), size * 2);
862 if (size <= mono_string_length (src))
864 *((gunichar2 *) dst + len) = 0;
868 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
871 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
872 mono_mb_emit_byte (mb, CEE_LDIND_I);
873 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
874 mono_mb_emit_byte (mb, CEE_ADD);
875 mono_mb_emit_byte (mb, CEE_LDIND_I);
876 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
877 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
878 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
879 pos = mono_mb_emit_branch (mb, branch_code);
884 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
887 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
888 mono_mb_emit_byte (mb, CEE_LDIND_REF);
889 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
890 mono_mb_emit_byte (mb, CEE_LDIND_I4);
891 mono_mb_emit_icon (mb, -1);
892 pos = mono_mb_emit_branch (mb, branch_code);
897 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
899 static int offset = -1;
903 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
905 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
906 mono_mb_emit_byte (mb, CEE_LDIND_REF);
907 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
908 mono_mb_emit_byte (mb, CEE_LDIND_REF);
909 mono_mb_emit_ldflda (mb, offset);
910 mono_mb_emit_byte (mb, CEE_LDIND_U1);
911 mono_mb_emit_icon (mb, mask);
912 mono_mb_emit_byte (mb, CEE_AND);
913 mono_mb_emit_icon (mb, 0);
914 return mono_mb_emit_branch (mb, branch_code);
918 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
920 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
924 mono_type_to_ldind (MonoType *type)
930 switch (type->type) {
934 case MONO_TYPE_BOOLEAN:
948 case MONO_TYPE_FNPTR:
950 case MONO_TYPE_CLASS:
951 case MONO_TYPE_STRING:
952 case MONO_TYPE_OBJECT:
953 case MONO_TYPE_SZARRAY:
954 case MONO_TYPE_ARRAY:
955 return CEE_LDIND_REF;
963 case MONO_TYPE_VALUETYPE:
964 if (type->data.klass->enumtype) {
965 type = mono_class_enum_basetype (type->data.klass);
969 case MONO_TYPE_TYPEDBYREF:
971 case MONO_TYPE_GENERICINST:
972 type = &type->data.generic_class->container_class->byval_arg;
975 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
981 mono_type_to_stind (MonoType *type)
987 switch (type->type) {
990 case MONO_TYPE_BOOLEAN:
1002 case MONO_TYPE_FNPTR:
1004 case MONO_TYPE_CLASS:
1005 case MONO_TYPE_STRING:
1006 case MONO_TYPE_OBJECT:
1007 case MONO_TYPE_SZARRAY:
1008 case MONO_TYPE_ARRAY:
1009 return CEE_STIND_REF;
1012 return CEE_STIND_I8;
1014 return CEE_STIND_R4;
1016 return CEE_STIND_R8;
1017 case MONO_TYPE_VALUETYPE:
1018 if (type->data.klass->enumtype) {
1019 type = mono_class_enum_basetype (type->data.klass);
1023 case MONO_TYPE_TYPEDBYREF:
1025 case MONO_TYPE_GENERICINST:
1026 type = &type->data.generic_class->container_class->byval_arg;
1029 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1035 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1038 case MONO_MARSHAL_CONV_BOOL_I4:
1039 mono_mb_emit_ldloc (mb, 1);
1040 mono_mb_emit_ldloc (mb, 0);
1041 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1042 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1043 mono_mb_emit_byte (mb, 3);
1044 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1045 mono_mb_emit_byte (mb, CEE_BR_S);
1046 mono_mb_emit_byte (mb, 1);
1047 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1048 mono_mb_emit_byte (mb, CEE_STIND_I1);
1050 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1051 mono_mb_emit_ldloc (mb, 1);
1052 mono_mb_emit_ldloc (mb, 0);
1053 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1054 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1055 mono_mb_emit_byte (mb, 3);
1056 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1057 mono_mb_emit_byte (mb, CEE_BR_S);
1058 mono_mb_emit_byte (mb, 1);
1059 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1060 mono_mb_emit_byte (mb, CEE_STIND_I1);
1062 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1063 MonoClass *eklass = NULL;
1066 if (type->type == MONO_TYPE_SZARRAY) {
1067 eklass = type->data.klass;
1069 g_assert_not_reached ();
1072 esize = mono_class_native_size (eklass, NULL);
1074 /* create a new array */
1075 mono_mb_emit_ldloc (mb, 1);
1076 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1077 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1078 mono_mb_emit_byte (mb, CEE_STIND_I);
1080 if (eklass->blittable) {
1081 /* copy the elements */
1082 mono_mb_emit_ldloc (mb, 1);
1083 mono_mb_emit_byte (mb, CEE_LDIND_I);
1084 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1085 mono_mb_emit_byte (mb, CEE_ADD);
1086 mono_mb_emit_ldloc (mb, 0);
1087 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1088 mono_mb_emit_byte (mb, CEE_PREFIX1);
1089 mono_mb_emit_byte (mb, CEE_CPBLK);
1092 int array_var, src_var, dst_var, index_var;
1093 guint32 label2, label3;
1095 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1096 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1097 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1100 mono_mb_emit_ldloc (mb, 1);
1101 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1102 mono_mb_emit_stloc (mb, array_var);
1104 /* save the old src pointer */
1105 mono_mb_emit_ldloc (mb, 0);
1106 mono_mb_emit_stloc (mb, src_var);
1107 /* save the old dst pointer */
1108 mono_mb_emit_ldloc (mb, 1);
1109 mono_mb_emit_stloc (mb, dst_var);
1111 /* Emit marshalling loop */
1112 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1113 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1114 mono_mb_emit_stloc (mb, index_var);
1117 label2 = mono_mb_get_label (mb);
1118 mono_mb_emit_ldloc (mb, index_var);
1119 mono_mb_emit_ldloc (mb, array_var);
1120 mono_mb_emit_byte (mb, CEE_LDLEN);
1121 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1123 /* src is already set */
1126 mono_mb_emit_ldloc (mb, array_var);
1127 mono_mb_emit_ldloc (mb, index_var);
1128 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1129 mono_mb_emit_stloc (mb, 1);
1131 /* Do the conversion */
1132 emit_struct_conv (mb, eklass, TRUE);
1135 mono_mb_emit_add_to_local (mb, index_var, 1);
1137 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1139 mono_mb_patch_branch (mb, label3);
1141 /* restore the old src pointer */
1142 mono_mb_emit_ldloc (mb, src_var);
1143 mono_mb_emit_stloc (mb, 0);
1144 /* restore the old dst pointer */
1145 mono_mb_emit_ldloc (mb, dst_var);
1146 mono_mb_emit_stloc (mb, 1);
1150 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1151 MonoClass *eclass = mono_defaults.char_class;
1153 /* create a new array */
1154 mono_mb_emit_ldloc (mb, 1);
1155 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1156 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1157 mono_mb_emit_byte (mb, CEE_STIND_REF);
1159 mono_mb_emit_ldloc (mb, 1);
1160 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1161 mono_mb_emit_ldloc (mb, 0);
1162 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1163 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1164 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1167 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1168 mono_mb_emit_ldloc (mb, 1);
1169 mono_mb_emit_ldloc (mb, 0);
1170 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1171 mono_mb_emit_byte (mb, CEE_STIND_REF);
1173 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1174 mono_mb_emit_ldloc (mb, 1);
1175 mono_mb_emit_ldloc (mb, 0);
1176 mono_mb_emit_icall (mb, mono_string_from_utf16);
1177 mono_mb_emit_byte (mb, CEE_STIND_REF);
1179 case MONO_MARSHAL_CONV_STR_LPTSTR:
1180 mono_mb_emit_ldloc (mb, 1);
1181 mono_mb_emit_ldloc (mb, 0);
1182 mono_mb_emit_byte (mb, CEE_LDIND_I);
1183 #ifdef PLATFORM_WIN32
1184 mono_mb_emit_icall (mb, mono_string_from_utf16);
1186 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1188 mono_mb_emit_byte (mb, CEE_STIND_REF);
1190 case MONO_MARSHAL_CONV_STR_LPSTR:
1191 mono_mb_emit_ldloc (mb, 1);
1192 mono_mb_emit_ldloc (mb, 0);
1193 mono_mb_emit_byte (mb, CEE_LDIND_I);
1194 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1195 mono_mb_emit_byte (mb, CEE_STIND_REF);
1197 case MONO_MARSHAL_CONV_STR_LPWSTR:
1198 mono_mb_emit_ldloc (mb, 1);
1199 mono_mb_emit_ldloc (mb, 0);
1200 mono_mb_emit_byte (mb, CEE_LDIND_I);
1201 mono_mb_emit_icall (mb, mono_string_from_utf16);
1202 mono_mb_emit_byte (mb, CEE_STIND_REF);
1204 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1205 MonoClass *klass = mono_class_from_mono_type (type);
1206 int src_var, dst_var;
1208 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1209 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1211 /* *dst = new object */
1212 mono_mb_emit_ldloc (mb, 1);
1213 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1214 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1215 mono_mb_emit_byte (mb, CEE_STIND_REF);
1217 /* save the old src pointer */
1218 mono_mb_emit_ldloc (mb, 0);
1219 mono_mb_emit_stloc (mb, src_var);
1220 /* save the old dst pointer */
1221 mono_mb_emit_ldloc (mb, 1);
1222 mono_mb_emit_stloc (mb, dst_var);
1224 /* dst = pointer to newly created object data */
1225 mono_mb_emit_ldloc (mb, 1);
1226 mono_mb_emit_byte (mb, CEE_LDIND_I);
1227 mono_mb_emit_icon (mb, sizeof (MonoObject));
1228 mono_mb_emit_byte (mb, CEE_ADD);
1229 mono_mb_emit_stloc (mb, 1);
1231 emit_struct_conv (mb, klass, TRUE);
1233 /* restore the old src pointer */
1234 mono_mb_emit_ldloc (mb, src_var);
1235 mono_mb_emit_stloc (mb, 0);
1236 /* restore the old dst pointer */
1237 mono_mb_emit_ldloc (mb, dst_var);
1238 mono_mb_emit_stloc (mb, 1);
1241 case MONO_MARSHAL_CONV_DEL_FTN: {
1242 MonoClass *klass = mono_class_from_mono_type (type);
1244 mono_mb_emit_ldloc (mb, 1);
1245 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1246 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1247 mono_mb_emit_ldloc (mb, 0);
1248 mono_mb_emit_byte (mb, CEE_LDIND_I);
1249 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1250 mono_mb_emit_byte (mb, CEE_STIND_REF);
1253 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1254 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1258 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1259 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1260 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1261 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1263 #endif /* DISABLE_COM */
1265 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1267 * Passing SafeHandles as ref does not allow the unmanaged code
1268 * to change the SafeHandle value. If the value is changed,
1269 * we should issue a diagnostic exception (NotSupportedException)
1270 * that informs the user that changes to handles in unmanaged code
1273 * Since we currently have no access to the original
1274 * SafeHandle that was used during the marshalling,
1275 * for now we just ignore this, and ignore/discard any
1276 * changes that might have happened to the handle.
1281 case MONO_MARSHAL_CONV_HANDLEREF: {
1283 * Passing HandleRefs in a struct that is ref()ed does not
1284 * copy the values back to the HandleRef
1289 case MONO_MARSHAL_CONV_STR_BSTR:
1290 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1291 case MONO_MARSHAL_CONV_STR_TBSTR:
1292 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1294 g_warning ("marshaling conversion %d not implemented", conv);
1295 g_assert_not_reached ();
1300 conv_to_icall (MonoMarshalConv conv)
1303 case MONO_MARSHAL_CONV_STR_LPWSTR:
1304 return mono_marshal_string_to_utf16;
1305 case MONO_MARSHAL_CONV_LPWSTR_STR:
1306 return mono_string_from_utf16;
1307 case MONO_MARSHAL_CONV_LPSTR_STR:
1308 return mono_string_new_wrapper;
1309 case MONO_MARSHAL_CONV_STR_LPTSTR:
1310 #ifdef PLATFORM_WIN32
1311 return mono_marshal_string_to_utf16;
1313 return mono_string_to_lpstr;
1315 case MONO_MARSHAL_CONV_STR_LPSTR:
1316 return mono_string_to_lpstr;
1317 case MONO_MARSHAL_CONV_STR_BSTR:
1318 return mono_string_to_bstr;
1319 case MONO_MARSHAL_CONV_BSTR_STR:
1320 return mono_string_from_bstr;
1321 case MONO_MARSHAL_CONV_STR_TBSTR:
1322 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1323 return mono_string_to_ansibstr;
1324 case MONO_MARSHAL_CONV_SB_LPSTR:
1325 return mono_string_builder_to_utf8;
1326 case MONO_MARSHAL_CONV_SB_LPTSTR:
1327 #ifdef PLATFORM_WIN32
1328 return mono_string_builder_to_utf16;
1330 return mono_string_builder_to_utf8;
1332 case MONO_MARSHAL_CONV_SB_LPWSTR:
1333 return mono_string_builder_to_utf16;
1334 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1335 return mono_array_to_savearray;
1336 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1337 return mono_array_to_lparray;
1338 case MONO_MARSHAL_CONV_DEL_FTN:
1339 return mono_delegate_to_ftnptr;
1340 case MONO_MARSHAL_CONV_FTN_DEL:
1341 return mono_ftnptr_to_delegate;
1342 case MONO_MARSHAL_CONV_LPSTR_SB:
1343 return mono_string_utf8_to_builder;
1344 case MONO_MARSHAL_CONV_LPTSTR_SB:
1345 #ifdef PLATFORM_WIN32
1346 return mono_string_utf16_to_builder;
1348 return mono_string_utf8_to_builder;
1350 case MONO_MARSHAL_CONV_LPWSTR_SB:
1351 return mono_string_utf16_to_builder;
1352 case MONO_MARSHAL_FREE_ARRAY:
1353 return mono_marshal_free_array;
1354 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1355 return mono_string_to_byvalstr;
1356 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1357 return mono_string_to_byvalwstr;
1359 g_assert_not_reached ();
1366 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1371 case MONO_MARSHAL_CONV_BOOL_I4:
1372 mono_mb_emit_ldloc (mb, 1);
1373 mono_mb_emit_ldloc (mb, 0);
1374 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1375 mono_mb_emit_byte (mb, CEE_STIND_I4);
1377 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1378 mono_mb_emit_ldloc (mb, 1);
1379 mono_mb_emit_ldloc (mb, 0);
1380 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1381 mono_mb_emit_byte (mb, CEE_NEG);
1382 mono_mb_emit_byte (mb, CEE_STIND_I2);
1384 case MONO_MARSHAL_CONV_STR_LPWSTR:
1385 case MONO_MARSHAL_CONV_STR_LPSTR:
1386 case MONO_MARSHAL_CONV_STR_LPTSTR:
1387 case MONO_MARSHAL_CONV_STR_BSTR:
1388 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1389 case MONO_MARSHAL_CONV_STR_TBSTR: {
1392 /* free space if free == true */
1393 mono_mb_emit_ldloc (mb, 2);
1394 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1395 mono_mb_emit_ldloc (mb, 1);
1396 mono_mb_emit_byte (mb, CEE_LDIND_I);
1397 mono_mb_emit_icall (mb, g_free);
1398 mono_mb_patch_short_branch (mb, pos);
1400 mono_mb_emit_ldloc (mb, 1);
1401 mono_mb_emit_ldloc (mb, 0);
1402 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1403 mono_mb_emit_icall (mb, conv_to_icall (conv));
1404 mono_mb_emit_byte (mb, CEE_STIND_I);
1407 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1408 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1409 case MONO_MARSHAL_CONV_DEL_FTN:
1410 mono_mb_emit_ldloc (mb, 1);
1411 mono_mb_emit_ldloc (mb, 0);
1412 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1413 mono_mb_emit_icall (mb, conv_to_icall (conv));
1414 mono_mb_emit_byte (mb, CEE_STIND_I);
1416 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1417 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1420 mono_mb_emit_ldloc (mb, 1); /* dst */
1421 mono_mb_emit_ldloc (mb, 0);
1422 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1423 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1424 mono_mb_emit_icall (mb, conv_to_icall (conv));
1427 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1428 MonoClass *eklass = NULL;
1431 if (type->type == MONO_TYPE_SZARRAY) {
1432 eklass = type->data.klass;
1434 g_assert_not_reached ();
1437 if (eklass->valuetype)
1438 esize = mono_class_native_size (eklass, NULL);
1440 esize = sizeof (gpointer);
1442 mono_mb_emit_ldloc (mb, 0);
1443 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1444 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1446 if (eklass->blittable) {
1447 mono_mb_emit_ldloc (mb, 1);
1448 mono_mb_emit_ldloc (mb, 0);
1449 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1450 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1451 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1452 mono_mb_emit_byte (mb, CEE_PREFIX1);
1453 mono_mb_emit_byte (mb, CEE_CPBLK);
1455 int array_var, src_var, dst_var, index_var;
1456 guint32 label2, label3;
1458 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1459 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1460 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1463 mono_mb_emit_ldloc (mb, 0);
1464 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1465 mono_mb_emit_stloc (mb, array_var);
1467 /* save the old src pointer */
1468 mono_mb_emit_ldloc (mb, 0);
1469 mono_mb_emit_stloc (mb, src_var);
1470 /* save the old dst pointer */
1471 mono_mb_emit_ldloc (mb, 1);
1472 mono_mb_emit_stloc (mb, dst_var);
1474 /* Emit marshalling loop */
1475 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1476 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1477 mono_mb_emit_stloc (mb, index_var);
1480 label2 = mono_mb_get_label (mb);
1481 mono_mb_emit_ldloc (mb, index_var);
1482 mono_mb_emit_ldloc (mb, array_var);
1483 mono_mb_emit_byte (mb, CEE_LDLEN);
1484 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1487 mono_mb_emit_ldloc (mb, array_var);
1488 mono_mb_emit_ldloc (mb, index_var);
1489 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1490 mono_mb_emit_stloc (mb, 0);
1492 /* dst is already set */
1494 /* Do the conversion */
1495 emit_struct_conv (mb, eklass, FALSE);
1498 mono_mb_emit_add_to_local (mb, index_var, 1);
1500 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1502 mono_mb_patch_branch (mb, label3);
1504 /* restore the old src pointer */
1505 mono_mb_emit_ldloc (mb, src_var);
1506 mono_mb_emit_stloc (mb, 0);
1507 /* restore the old dst pointer */
1508 mono_mb_emit_ldloc (mb, dst_var);
1509 mono_mb_emit_stloc (mb, 1);
1512 mono_mb_patch_branch (mb, pos);
1515 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1516 mono_mb_emit_ldloc (mb, 0);
1517 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1518 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1520 mono_mb_emit_ldloc (mb, 1);
1521 mono_mb_emit_ldloc (mb, 0);
1522 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1523 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1524 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1525 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1526 mono_mb_patch_short_branch (mb, pos);
1529 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1530 int src_var, dst_var;
1532 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1533 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1535 mono_mb_emit_ldloc (mb, 0);
1536 mono_mb_emit_byte (mb, CEE_LDIND_I);
1537 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1539 /* save the old src pointer */
1540 mono_mb_emit_ldloc (mb, 0);
1541 mono_mb_emit_stloc (mb, src_var);
1542 /* save the old dst pointer */
1543 mono_mb_emit_ldloc (mb, 1);
1544 mono_mb_emit_stloc (mb, dst_var);
1546 /* src = pointer to object data */
1547 mono_mb_emit_ldloc (mb, 0);
1548 mono_mb_emit_byte (mb, CEE_LDIND_I);
1549 mono_mb_emit_icon (mb, sizeof (MonoObject));
1550 mono_mb_emit_byte (mb, CEE_ADD);
1551 mono_mb_emit_stloc (mb, 0);
1553 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1555 /* restore the old src pointer */
1556 mono_mb_emit_ldloc (mb, src_var);
1557 mono_mb_emit_stloc (mb, 0);
1558 /* restore the old dst pointer */
1559 mono_mb_emit_ldloc (mb, dst_var);
1560 mono_mb_emit_stloc (mb, 1);
1562 mono_mb_patch_branch (mb, pos);
1567 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1568 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1569 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1570 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1572 #endif /* DISABLE_COM */
1574 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1575 int dar_release_slot, pos;
1577 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1580 * The following is ifdefed-out, because I have no way of doing the
1581 * DangerousRelease when destroying the structure
1584 /* set release = false */
1585 mono_mb_emit_icon (mb, 0);
1586 mono_mb_emit_stloc (mb, dar_release_slot);
1587 if (!sh_dangerous_add_ref)
1588 init_safe_handle ();
1590 /* safehandle.DangerousAddRef (ref release) */
1591 mono_mb_emit_ldloc (mb, 0); /* the source */
1592 mono_mb_emit_byte (mb, CEE_LDIND_I);
1593 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1594 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1596 mono_mb_emit_ldloc (mb, 0);
1597 mono_mb_emit_byte (mb, CEE_LDIND_I);
1598 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1599 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1600 mono_mb_patch_branch (mb, pos);
1602 /* Pull the handle field from SafeHandle */
1603 mono_mb_emit_ldloc (mb, 1);
1604 mono_mb_emit_ldloc (mb, 0);
1605 mono_mb_emit_byte (mb, CEE_LDIND_I);
1606 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1607 mono_mb_emit_byte (mb, CEE_LDIND_I);
1608 mono_mb_emit_byte (mb, CEE_STIND_I);
1612 case MONO_MARSHAL_CONV_HANDLEREF: {
1613 mono_mb_emit_ldloc (mb, 1);
1614 mono_mb_emit_ldloc (mb, 0);
1615 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1616 mono_mb_emit_byte (mb, CEE_ADD);
1617 mono_mb_emit_byte (mb, CEE_LDIND_I);
1618 mono_mb_emit_byte (mb, CEE_STIND_I);
1623 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1624 MonoException *exc = mono_get_exception_not_implemented (msg);
1627 mono_raise_exception (exc);
1633 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1635 MonoMarshalType *info;
1639 emit_struct_conv(mb, klass->parent, to_object);
1641 info = mono_marshal_load_type_info (klass);
1643 if (info->native_size == 0)
1646 if (klass->blittable) {
1647 int msize = mono_class_value_size (klass, NULL);
1648 g_assert (msize == info->native_size);
1649 mono_mb_emit_ldloc (mb, 1);
1650 mono_mb_emit_ldloc (mb, 0);
1651 mono_mb_emit_icon (mb, msize);
1652 mono_mb_emit_byte (mb, CEE_PREFIX1);
1653 mono_mb_emit_byte (mb, CEE_CPBLK);
1655 mono_mb_emit_add_to_local (mb, 0, msize);
1656 mono_mb_emit_add_to_local (mb, 1, msize);
1660 for (i = 0; i < info->num_fields; i++) {
1661 MonoMarshalNative ntype;
1662 MonoMarshalConv conv;
1663 MonoType *ftype = info->fields [i].field->type;
1666 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1668 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1671 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1674 msize = klass->instance_size - info->fields [i].field->offset;
1675 usize = info->native_size - info->fields [i].offset;
1677 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1678 usize = info->fields [i + 1].offset - info->fields [i].offset;
1681 if (klass != mono_defaults.safehandle_class){
1683 * FIXME: Should really check for usize==0 and msize>0, but we apply
1684 * the layout to the managed structure as well.
1687 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1688 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1689 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1690 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1691 "reference field at the same offset as another field.",
1692 mono_type_full_name (&klass->byval_arg));
1695 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1696 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
1697 mono_type_full_name (&klass->byval_arg));
1702 case MONO_MARSHAL_CONV_NONE: {
1705 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1706 ftype->type == MONO_TYPE_U) {
1707 mono_mb_emit_ldloc (mb, 1);
1708 mono_mb_emit_ldloc (mb, 0);
1709 mono_mb_emit_byte (mb, CEE_LDIND_I);
1710 mono_mb_emit_byte (mb, CEE_STIND_I);
1721 case MONO_TYPE_BOOLEAN:
1724 case MONO_TYPE_CHAR:
1730 mono_mb_emit_ldloc (mb, 1);
1731 mono_mb_emit_ldloc (mb, 0);
1732 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1733 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1735 case MONO_TYPE_VALUETYPE: {
1736 int src_var, dst_var;
1738 if (ftype->data.klass->enumtype) {
1739 ftype = mono_class_enum_basetype (ftype->data.klass);
1743 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1744 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1746 /* save the old src pointer */
1747 mono_mb_emit_ldloc (mb, 0);
1748 mono_mb_emit_stloc (mb, src_var);
1749 /* save the old dst pointer */
1750 mono_mb_emit_ldloc (mb, 1);
1751 mono_mb_emit_stloc (mb, dst_var);
1753 emit_struct_conv (mb, ftype->data.klass, to_object);
1755 /* restore the old src pointer */
1756 mono_mb_emit_ldloc (mb, src_var);
1757 mono_mb_emit_stloc (mb, 0);
1758 /* restore the old dst pointer */
1759 mono_mb_emit_ldloc (mb, dst_var);
1760 mono_mb_emit_stloc (mb, 1);
1763 case MONO_TYPE_OBJECT: {
1764 mono_init_com_types ();
1766 static MonoMethod *variant_clear = NULL;
1767 static MonoMethod *get_object_for_native_variant = NULL;
1770 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1771 if (!get_object_for_native_variant)
1772 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1773 mono_mb_emit_ldloc (mb, 1);
1774 mono_mb_emit_ldloc (mb, 0);
1775 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1776 mono_mb_emit_byte (mb, CEE_STIND_REF);
1778 mono_mb_emit_ldloc (mb, 0);
1779 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1782 static MonoMethod *get_native_variant_for_object = NULL;
1784 if (!get_native_variant_for_object)
1785 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1787 mono_mb_emit_ldloc (mb, 0);
1788 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1789 mono_mb_emit_ldloc (mb, 1);
1790 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1796 g_warning ("marshaling type %02x not implemented", ftype->type);
1797 g_assert_not_reached ();
1802 int src_var, dst_var;
1804 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1805 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1807 /* save the old src pointer */
1808 mono_mb_emit_ldloc (mb, 0);
1809 mono_mb_emit_stloc (mb, src_var);
1810 /* save the old dst pointer */
1811 mono_mb_emit_ldloc (mb, 1);
1812 mono_mb_emit_stloc (mb, dst_var);
1815 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1817 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1819 /* restore the old src pointer */
1820 mono_mb_emit_ldloc (mb, src_var);
1821 mono_mb_emit_stloc (mb, 0);
1822 /* restore the old dst pointer */
1823 mono_mb_emit_ldloc (mb, dst_var);
1824 mono_mb_emit_stloc (mb, 1);
1829 mono_mb_emit_add_to_local (mb, 0, usize);
1830 mono_mb_emit_add_to_local (mb, 1, msize);
1832 mono_mb_emit_add_to_local (mb, 0, msize);
1833 mono_mb_emit_add_to_local (mb, 1, usize);
1839 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1841 /* Call DestroyStructure */
1842 /* FIXME: Only do this if needed */
1843 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1844 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1845 mono_mb_emit_ldloc (mb, struct_var);
1846 mono_mb_emit_icall (mb, mono_struct_delete_old);
1850 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1854 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1855 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1856 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1858 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1859 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1861 mono_mb_emit_icall (mb, checkpoint_func);
1863 mono_mb_patch_branch (mb, pos_noabort);
1867 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1869 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1872 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1876 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1878 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1882 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1884 emit_thread_interrupt_checkpoint (mb);
1887 static MonoAsyncResult *
1888 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1890 MonoMethodMessage *msg;
1891 MonoDelegate *async_callback;
1895 MonoMethod *method = NULL, *method2 = NULL;
1897 g_assert (delegate);
1899 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1901 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1902 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1904 /* If the target is a proxy, make a direct call. Is proxy's work
1905 // to make the call asynchronous.
1907 MonoAsyncResult *ares;
1909 MonoArray *out_args;
1911 method = delegate->method;
1913 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1914 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1915 g_assert(handle != NULL);
1916 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
1917 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
1918 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
1919 MONO_OBJECT_SETREF (msg, async_result, ares);
1920 msg->call_type = CallType_BeginInvoke;
1922 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1927 klass = delegate->object.vtable->klass;
1929 method = mono_get_delegate_invoke (klass);
1930 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
1933 g_assert (method != NULL);
1935 im = mono_get_delegate_invoke (method->klass);
1936 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1938 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1942 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1944 int i, params_var, tmp_var;
1946 /* allocate local (pointer) *params[] */
1947 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1948 /* allocate local (pointer) tmp */
1949 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1951 /* alloate space on stack to store an array of pointers to the arguments */
1952 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1953 mono_mb_emit_byte (mb, CEE_PREFIX1);
1954 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1955 mono_mb_emit_stloc (mb, params_var);
1958 mono_mb_emit_ldloc (mb, params_var);
1959 mono_mb_emit_stloc (mb, tmp_var);
1961 if (save_this && sig->hasthis) {
1962 mono_mb_emit_ldloc (mb, tmp_var);
1963 mono_mb_emit_ldarg_addr (mb, 0);
1964 mono_mb_emit_byte (mb, CEE_STIND_I);
1965 /* tmp = tmp + sizeof (gpointer) */
1966 if (sig->param_count)
1967 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1971 for (i = 0; i < sig->param_count; i++) {
1972 mono_mb_emit_ldloc (mb, tmp_var);
1973 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1974 mono_mb_emit_byte (mb, CEE_STIND_I);
1975 /* tmp = tmp + sizeof (gpointer) */
1976 if (i < (sig->param_count - 1))
1977 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1984 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1988 GString *res = g_string_new ("");
1991 g_string_append (res, prefix);
1992 g_string_append_c (res, '_');
1995 mono_type_get_desc (res, sig->ret, FALSE);
1998 g_string_append (res, "__this__");
2000 for (i = 0; i < sig->param_count; ++i) {
2001 g_string_append_c (res, '_');
2002 mono_type_get_desc (res, sig->params [i], FALSE);
2005 g_string_free (res, FALSE);
2010 * mono_marshal_get_string_encoding:
2012 * Return the string encoding which should be used for a given parameter.
2014 static MonoMarshalNative
2015 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2017 /* First try the parameter marshal info */
2019 if (spec->native == MONO_NATIVE_LPARRAY) {
2020 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2021 return spec->data.array_data.elem_type;
2024 return spec->native;
2028 return MONO_NATIVE_LPSTR;
2030 /* Then try the method level marshal info */
2031 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2032 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2033 return MONO_NATIVE_LPSTR;
2034 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2035 return MONO_NATIVE_LPWSTR;
2036 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2037 #ifdef PLATFORM_WIN32
2038 return MONO_NATIVE_LPWSTR;
2040 return MONO_NATIVE_LPSTR;
2043 return MONO_NATIVE_LPSTR;
2047 static MonoMarshalConv
2048 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2050 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2053 case MONO_NATIVE_LPWSTR:
2054 return MONO_MARSHAL_CONV_STR_LPWSTR;
2055 case MONO_NATIVE_LPSTR:
2056 return MONO_MARSHAL_CONV_STR_LPSTR;
2057 case MONO_NATIVE_LPTSTR:
2058 return MONO_MARSHAL_CONV_STR_LPTSTR;
2059 case MONO_NATIVE_BSTR:
2060 return MONO_MARSHAL_CONV_STR_BSTR;
2066 static MonoMarshalConv
2067 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2069 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2072 case MONO_NATIVE_LPWSTR:
2073 return MONO_MARSHAL_CONV_SB_LPWSTR;
2075 case MONO_NATIVE_LPSTR:
2076 return MONO_MARSHAL_CONV_SB_LPSTR;
2078 case MONO_NATIVE_LPTSTR:
2079 return MONO_MARSHAL_CONV_SB_LPTSTR;
2086 static MonoMarshalConv
2087 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2089 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2094 case MONO_NATIVE_LPWSTR:
2096 return MONO_MARSHAL_CONV_LPWSTR_STR;
2097 case MONO_NATIVE_LPSTR:
2098 return MONO_MARSHAL_CONV_LPSTR_STR;
2099 case MONO_NATIVE_LPTSTR:
2100 return MONO_MARSHAL_CONV_LPTSTR_STR;
2101 case MONO_NATIVE_BSTR:
2102 return MONO_MARSHAL_CONV_BSTR_STR;
2108 static MonoMarshalConv
2109 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2111 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2116 case MONO_NATIVE_LPWSTR:
2118 * mono_string_builder_to_utf16 does not allocate a
2119 * new buffer, so no need to free it.
2122 return MONO_MARSHAL_CONV_LPWSTR_SB;
2123 case MONO_NATIVE_LPSTR:
2124 return MONO_MARSHAL_CONV_LPSTR_SB;
2126 case MONO_NATIVE_LPTSTR:
2127 return MONO_MARSHAL_CONV_LPTSTR_SB;
2135 * Return whenever a field of a native structure or an array member needs to
2139 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2141 MonoMarshalNative encoding;
2142 MonoMarshalConv conv;
2145 case MONO_TYPE_VALUETYPE:
2146 /* FIXME: Optimize this */
2148 case MONO_TYPE_OBJECT:
2149 case MONO_TYPE_CLASS:
2150 if (t->data.klass == mono_defaults.stringbuilder_class) {
2152 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2156 case MONO_TYPE_STRING:
2157 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2158 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2165 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2168 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2171 mono_marshal_lock ();
2174 g_hash_table_new (hash_func, equal_func);
2175 mono_memory_barrier ();
2178 mono_marshal_unlock ();
2184 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2186 return get_cache (var, hash_func, equal_func);
2190 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2194 mono_marshal_lock ();
2195 res = g_hash_table_lookup (cache, key);
2196 mono_marshal_unlock ();
2201 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2205 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2208 datav = ((MonoMethodWrapper *)method)->method_data;
2212 /* Create the method from the builder and place it in the cache */
2214 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2215 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2220 mono_marshal_lock ();
2221 res = g_hash_table_lookup (cache, key);
2222 mono_marshal_unlock ();
2225 newm = mono_mb_create_method (mb, sig, max_stack);
2226 mono_marshal_lock ();
2227 res = g_hash_table_lookup (cache, key);
2230 g_hash_table_insert (cache, key, res);
2231 mono_marshal_method_set_wrapper_data (res, key);
2232 mono_marshal_unlock ();
2234 mono_marshal_unlock ();
2235 mono_free_method (newm);
2243 static inline MonoMethod*
2244 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2246 MonoMethod *res = NULL;
2247 MonoRemotingMethods *wrps;
2249 mono_marshal_lock ();
2250 if (method->klass->image->remoting_invoke_cache)
2251 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2256 switch (wrapper_type) {
2257 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2258 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2259 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2260 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2264 /* it is important to do the unlock after the load from wrps, since in
2265 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2266 * to take the loader lock and some other thread may set the fields.
2268 mono_marshal_unlock ();
2272 /* Create the method from the builder and place it in the cache */
2273 static inline MonoMethod*
2274 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2275 MonoMethodSignature *sig, int max_stack)
2277 MonoMethod **res = NULL;
2278 MonoRemotingMethods *wrps;
2279 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2281 mono_marshal_lock ();
2282 wrps = g_hash_table_lookup (cache, key);
2284 wrps = g_new0 (MonoRemotingMethods, 1);
2285 g_hash_table_insert (cache, key, wrps);
2288 switch (mb->method->wrapper_type) {
2289 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2290 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2291 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2292 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2293 default: g_assert_not_reached (); break;
2295 mono_marshal_unlock ();
2299 newm = mono_mb_create_method (mb, sig, max_stack);
2301 mono_marshal_lock ();
2304 mono_marshal_method_set_wrapper_data (*res, key);
2305 mono_marshal_unlock ();
2307 mono_marshal_unlock ();
2308 mono_free_method (newm);
2316 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2320 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2323 res = mono_method_get_wrapper_data (wrapper, 1);
2330 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2332 MonoMethodSignature *sig;
2333 MonoMethodBuilder *mb;
2339 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2340 !strcmp (method->name, "BeginInvoke"));
2342 sig = mono_signature_no_pinvoke (method);
2344 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2345 (GHashFunc)mono_signature_hash,
2346 (GCompareFunc)mono_metadata_signature_equal);
2347 if ((res = mono_marshal_find_in_cache (cache, sig)))
2350 g_assert (sig->hasthis);
2352 name = mono_signature_to_name (sig, "begin_invoke");
2353 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2356 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2358 mono_mb_emit_ldarg (mb, 0);
2359 mono_mb_emit_ldloc (mb, params_var);
2360 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2361 mono_mb_emit_byte (mb, CEE_RET);
2363 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2369 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2371 MonoDomain *domain = mono_domain_get ();
2372 MonoAsyncResult *ares;
2373 MonoMethod *method = NULL;
2374 MonoMethodSignature *sig;
2375 MonoMethodMessage *msg;
2376 MonoObject *res, *exc;
2377 MonoArray *out_args;
2380 g_assert (delegate);
2382 if (!delegate->method_info) {
2383 g_assert (delegate->method);
2384 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2387 if (!delegate->method_info || !delegate->method_info->method)
2388 g_assert_not_reached ();
2390 klass = delegate->object.vtable->klass;
2392 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2393 g_assert (method != NULL);
2395 sig = mono_signature_no_pinvoke (method);
2397 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2399 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2401 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."));
2403 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
2404 mono_raise_exception (mono_get_exception_invalid_operation (
2405 "The IAsyncResult object provided does not match this delegate."));
2409 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2410 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2411 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2412 mono_message_init (domain, msg, delegate->method_info, NULL);
2413 msg->call_type = CallType_EndInvoke;
2414 MONO_OBJECT_SETREF (msg, async_result, ares);
2415 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2417 res = mono_thread_pool_finish (ares, &out_args, &exc);
2421 if (((MonoException*)exc)->stack_trace) {
2422 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2424 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2426 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2429 mono_raise_exception ((MonoException*)exc);
2432 mono_method_return_message_restore (method, params, out_args);
2437 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2439 MonoType *t = mono_type_get_underlying_type (return_type);
2441 if (return_type->byref)
2442 return_type = &mono_defaults.int_class->byval_arg;
2445 case MONO_TYPE_VOID:
2446 g_assert_not_reached ();
2449 case MONO_TYPE_STRING:
2450 case MONO_TYPE_CLASS:
2451 case MONO_TYPE_OBJECT:
2452 case MONO_TYPE_ARRAY:
2453 case MONO_TYPE_SZARRAY:
2457 case MONO_TYPE_BOOLEAN:
2460 case MONO_TYPE_CHAR:
2470 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2471 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2473 case MONO_TYPE_GENERICINST:
2474 if (!mono_type_generic_inst_is_valuetype (return_type))
2477 case MONO_TYPE_VALUETYPE: {
2478 MonoClass *klass = mono_class_from_mono_type (return_type);
2479 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2480 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2484 g_warning ("type 0x%x not handled", return_type->type);
2485 g_assert_not_reached ();
2488 mono_mb_emit_byte (mb, CEE_RET);
2492 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2494 MonoMethodSignature *sig;
2495 MonoMethodBuilder *mb;
2501 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2502 !strcmp (method->name, "EndInvoke"));
2504 sig = mono_signature_no_pinvoke (method);
2506 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2507 (GHashFunc)mono_signature_hash,
2508 (GCompareFunc)mono_metadata_signature_equal);
2509 if ((res = mono_marshal_find_in_cache (cache, sig)))
2512 g_assert (sig->hasthis);
2514 name = mono_signature_to_name (sig, "end_invoke");
2515 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2518 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2520 mono_mb_emit_ldarg (mb, 0);
2521 mono_mb_emit_ldloc (mb, params_var);
2522 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2524 if (sig->ret->type == MONO_TYPE_VOID) {
2525 mono_mb_emit_byte (mb, CEE_POP);
2526 mono_mb_emit_byte (mb, CEE_RET);
2528 mono_mb_emit_restore_result (mb, sig->ret);
2530 res = mono_mb_create_and_cache (cache, sig,
2531 mb, sig, sig->param_count + 16);
2538 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2540 MonoMethodMessage *msg;
2541 MonoTransparentProxy *this;
2542 MonoObject *res, *exc;
2543 MonoArray *out_args;
2545 this = *((MonoTransparentProxy **)params [0]);
2548 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2550 /* skip the this pointer */
2553 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2556 MonoMethodSignature *sig = mono_method_signature (method);
2557 int count = sig->param_count;
2558 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2560 for (i=0; i<count; i++) {
2561 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2562 if (class->valuetype) {
2563 if (sig->params [i]->byref) {
2564 mparams[i] = *((gpointer *)params [i]);
2566 /* runtime_invoke expects a boxed instance */
2567 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2568 mparams[i] = mono_nullable_box (params [i], class);
2570 mparams[i] = params [i];
2573 mparams[i] = *((gpointer**)params [i]);
2577 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2580 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2582 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2585 mono_raise_exception ((MonoException *)exc);
2587 mono_method_return_message_restore (method, params, out_args);
2593 mono_marshal_get_remoting_invoke (MonoMethod *method)
2595 MonoMethodSignature *sig;
2596 MonoMethodBuilder *mb;
2602 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2605 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2606 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote) {
2608 return mono_cominterop_get_invoke (method);
2610 g_assert_not_reached ();
2614 sig = mono_signature_no_pinvoke (method);
2616 /* we cant remote methods without this pointer */
2620 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2623 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2624 mb->method->save_lmf = 1;
2626 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2628 mono_mb_emit_ptr (mb, method);
2629 mono_mb_emit_ldloc (mb, params_var);
2630 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2631 emit_thread_interrupt_checkpoint (mb);
2633 if (sig->ret->type == MONO_TYPE_VOID) {
2634 mono_mb_emit_byte (mb, CEE_POP);
2635 mono_mb_emit_byte (mb, CEE_RET);
2637 mono_mb_emit_restore_result (mb, sig->ret);
2640 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2646 /* mono_get_xdomain_marshal_type()
2647 * Returns the kind of marshalling that a type needs for cross domain calls.
2649 static MonoXDomainMarshalType
2650 mono_get_xdomain_marshal_type (MonoType *t)
2653 case MONO_TYPE_VOID:
2654 g_assert_not_reached ();
2658 case MONO_TYPE_BOOLEAN:
2661 case MONO_TYPE_CHAR:
2668 return MONO_MARSHAL_NONE;
2669 case MONO_TYPE_STRING:
2670 return MONO_MARSHAL_COPY;
2671 case MONO_TYPE_ARRAY:
2672 case MONO_TYPE_SZARRAY: {
2673 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2674 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2675 return MONO_MARSHAL_COPY;
2680 return MONO_MARSHAL_SERIALIZE;
2684 /* mono_marshal_xdomain_copy_value
2685 * Makes a copy of "val" suitable for the current domain.
2688 mono_marshal_xdomain_copy_value (MonoObject *val)
2691 if (val == NULL) return NULL;
2693 domain = mono_domain_get ();
2695 switch (mono_object_class (val)->byval_arg.type) {
2696 case MONO_TYPE_VOID:
2697 g_assert_not_reached ();
2701 case MONO_TYPE_BOOLEAN:
2704 case MONO_TYPE_CHAR:
2710 case MONO_TYPE_R8: {
2711 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2713 case MONO_TYPE_STRING: {
2714 MonoString *str = (MonoString *) val;
2715 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2717 case MONO_TYPE_ARRAY:
2718 case MONO_TYPE_SZARRAY: {
2720 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2721 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2722 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2723 if (mt == MONO_MARSHAL_COPY) {
2724 int i, len = mono_array_length (acopy);
2725 for (i = 0; i < len; i++) {
2726 MonoObject *item = mono_array_get (acopy, gpointer, i);
2727 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2730 return (MonoObject *) acopy;
2734 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2735 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2736 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2737 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2738 newsb->length = oldsb->length;
2739 newsb->max_capacity = (gint32)0x7fffffff;
2740 return (MonoObject *) newsb;
2745 /* mono_marshal_xdomain_copy_out_value()
2746 * Copies the contents of the src instance into the dst instance. src and dst
2747 * must have the same type, and if they are arrays, the same size.
2750 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2752 if (src == NULL || dst == NULL) return;
2754 g_assert (mono_object_class (src) == mono_object_class (dst));
2756 switch (mono_object_class (src)->byval_arg.type) {
2757 case MONO_TYPE_ARRAY:
2758 case MONO_TYPE_SZARRAY: {
2759 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2760 if (mt == MONO_MARSHAL_SERIALIZE) return;
2761 if (mt == MONO_MARSHAL_COPY) {
2762 int i, len = mono_array_length ((MonoArray *)dst);
2763 for (i = 0; i < len; i++) {
2764 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2765 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2768 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2774 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2775 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2776 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2778 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)));
2779 dst_sb->cached_str = NULL;
2780 dst_sb->length = src_sb->length;
2785 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2787 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2788 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2792 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2794 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2797 /* mono_marshal_supports_fast_xdomain()
2798 * Returns TRUE if the method can use the fast xdomain wrapper.
2801 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2803 return !method->klass->contextbound &&
2804 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2808 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2810 MonoDomain *current_domain = mono_domain_get ();
2811 MonoDomain *domain = mono_domain_get_by_id (id);
2813 if (!domain || !mono_domain_set (domain, FALSE))
2814 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2817 mono_thread_push_appdomain_ref (domain);
2819 mono_thread_pop_appdomain_ref ();
2821 return current_domain->domain_id;
2825 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
2827 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
2830 /* mono_marshal_emit_load_domain_method ()
2831 * Loads into the stack a pointer to the code of the provided method for
2832 * the current domain.
2835 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
2837 /* We need a pointer to the method for the running domain (not the domain
2838 * that compiles the method).
2840 mono_mb_emit_ptr (mb, method);
2841 mono_mb_emit_icall (mb, mono_compile_method);
2844 /* mono_marshal_check_domain_image ()
2845 * Returns TRUE if the image is loaded in the specified
2846 * application domain.
2849 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
2854 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2858 mono_domain_assemblies_lock (domain);
2859 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
2861 if (ass->image == image)
2864 mono_domain_assemblies_unlock (domain);
2869 /* mono_marshal_get_xappdomain_dispatch ()
2870 * Generates a method that dispatches a method call from another domain into
2871 * the current domain.
2874 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
2876 MonoMethodSignature *sig, *csig;
2877 MonoMethodBuilder *mb;
2879 int i, j, param_index, copy_locals_base;
2880 MonoClass *ret_class = NULL;
2881 int loc_array=0, loc_return=0, loc_serialized_exc=0;
2882 MonoExceptionClause *main_clause;
2884 gboolean copy_return;
2886 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
2889 sig = mono_method_signature (method);
2890 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
2893 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
2894 csig->params [j++] = &mono_defaults.object_class->byval_arg;
2895 csig->params [j++] = &byte_array_class->this_arg;
2896 csig->params [j++] = &byte_array_class->this_arg;
2897 for (i = 0; i < sig->param_count; i++) {
2898 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
2899 csig->params [j++] = sig->params [i];
2902 csig->ret = sig->ret;
2904 csig->ret = &mono_defaults.void_class->byval_arg;
2906 csig->hasthis = FALSE;
2908 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
2909 mb->method->save_lmf = 1;
2913 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
2914 if (complex_count > 0)
2915 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2916 if (sig->ret->type != MONO_TYPE_VOID) {
2917 loc_return = mono_mb_add_local (mb, sig->ret);
2918 ret_class = mono_class_from_mono_type (sig->ret);
2923 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
2924 main_clause->try_offset = mono_mb_get_label (mb);
2926 /* Clean the call context */
2928 mono_mb_emit_byte (mb, CEE_LDNULL);
2929 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
2930 mono_mb_emit_byte (mb, CEE_POP);
2932 /* Deserialize call data */
2934 mono_mb_emit_ldarg (mb, 1);
2935 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2936 mono_mb_emit_byte (mb, CEE_DUP);
2937 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2939 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2940 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2942 if (complex_count > 0)
2943 mono_mb_emit_stloc (mb, loc_array);
2945 mono_mb_emit_byte (mb, CEE_POP);
2947 mono_mb_patch_short_branch (mb, pos);
2949 /* Get the target object */
2951 mono_mb_emit_ldarg (mb, 0);
2952 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
2954 /* Load the arguments */
2956 copy_locals_base = mb->locals;
2957 param_index = 3; // Index of the first non-serialized parameter of this wrapper
2959 for (i = 0; i < sig->param_count; i++) {
2960 MonoType *pt = sig->params [i];
2961 MonoClass *pclass = mono_class_from_mono_type (pt);
2962 switch (marshal_types [i]) {
2963 case MONO_MARSHAL_SERIALIZE: {
2964 /* take the value from the serialized array */
2965 mono_mb_emit_ldloc (mb, loc_array);
2966 mono_mb_emit_icon (mb, j++);
2968 if (pclass->valuetype) {
2969 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2970 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
2972 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
2975 if (pclass->valuetype) {
2976 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2977 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
2978 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
2980 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2981 if (pclass != mono_defaults.object_class) {
2982 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2988 case MONO_MARSHAL_COPY_OUT: {
2989 /* Keep a local copy of the value since we need to copy it back after the call */
2990 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
2991 mono_mb_emit_ldarg (mb, param_index++);
2992 mono_marshal_emit_xdomain_copy_value (mb, pclass);
2993 mono_mb_emit_byte (mb, CEE_DUP);
2994 mono_mb_emit_stloc (mb, copy_local);
2997 case MONO_MARSHAL_COPY: {
2998 mono_mb_emit_ldarg (mb, param_index);
3000 mono_mb_emit_byte (mb, CEE_DUP);
3001 mono_mb_emit_byte (mb, CEE_DUP);
3002 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3003 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3004 mono_mb_emit_byte (mb, CEE_STIND_REF);
3006 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3011 case MONO_MARSHAL_NONE:
3012 mono_mb_emit_ldarg (mb, param_index++);
3017 /* Make the call to the real object */
3019 emit_thread_force_interrupt_checkpoint (mb);
3021 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3023 if (sig->ret->type != MONO_TYPE_VOID)
3024 mono_mb_emit_stloc (mb, loc_return);
3026 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3030 for (i = 0; i < sig->param_count; i++) {
3031 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3032 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3033 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3034 mono_mb_emit_ldarg (mb, param_index);
3035 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3040 /* Serialize the return values */
3042 if (complex_out_count > 0) {
3043 /* Reset parameters in the array that don't need to be serialized back */
3045 for (i = 0; i < sig->param_count; i++) {
3046 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3047 if (!sig->params [i]->byref) {
3048 mono_mb_emit_ldloc (mb, loc_array);
3049 mono_mb_emit_icon (mb, j);
3050 mono_mb_emit_byte (mb, CEE_LDNULL);
3051 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3056 /* Add the return value to the array */
3058 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3059 mono_mb_emit_ldloc (mb, loc_array);
3060 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3061 mono_mb_emit_ldloc (mb, loc_return);
3062 if (ret_class->valuetype) {
3063 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3065 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3070 mono_mb_emit_ldarg (mb, 1);
3071 mono_mb_emit_ldloc (mb, loc_array);
3072 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3073 mono_mb_emit_byte (mb, CEE_STIND_REF);
3074 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3075 mono_mb_emit_ldarg (mb, 1);
3076 mono_mb_emit_ldloc (mb, loc_return);
3077 if (ret_class->valuetype) {
3078 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3080 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3081 mono_mb_emit_byte (mb, CEE_STIND_REF);
3083 mono_mb_emit_ldarg (mb, 1);
3084 mono_mb_emit_byte (mb, CEE_LDNULL);
3085 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3086 mono_mb_emit_byte (mb, CEE_STIND_REF);
3089 mono_mb_emit_ldarg (mb, 2);
3090 mono_mb_emit_byte (mb, CEE_LDNULL);
3091 mono_mb_emit_byte (mb, CEE_STIND_REF);
3092 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3094 /* Main exception catch */
3095 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3096 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3097 main_clause->data.catch_class = mono_defaults.object_class;
3100 main_clause->handler_offset = mono_mb_get_label (mb);
3101 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3102 mono_mb_emit_stloc (mb, loc_serialized_exc);
3103 mono_mb_emit_ldarg (mb, 2);
3104 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3105 mono_mb_emit_byte (mb, CEE_STIND_REF);
3106 mono_mb_emit_branch (mb, CEE_LEAVE);
3107 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3110 mono_mb_patch_branch (mb, pos_leave);
3113 mono_mb_emit_ldloc (mb, loc_return);
3115 mono_mb_emit_byte (mb, CEE_RET);
3117 mono_mb_set_clauses (mb, 1, main_clause);
3119 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3125 /* mono_marshal_get_xappdomain_invoke ()
3126 * Generates a fast remoting wrapper for cross app domain calls.
3129 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3131 MonoMethodSignature *sig;
3132 MonoMethodBuilder *mb;
3134 int i, j, complex_count, complex_out_count, copy_locals_base;
3136 MonoClass *ret_class = NULL;
3137 MonoMethod *xdomain_method;
3138 int ret_marshal_type = MONO_MARSHAL_NONE;
3139 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3140 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3141 int pos, pos_dispatch, pos_noex;
3142 gboolean copy_return = FALSE;
3146 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3149 /* we cant remote methods without this pointer */
3150 if (!mono_method_signature (method)->hasthis)
3153 if (!mono_marshal_supports_fast_xdomain (method))
3154 return mono_marshal_get_remoting_invoke (method);
3156 mono_remoting_marshal_init ();
3158 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3161 sig = mono_signature_no_pinvoke (method);
3163 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3164 mb->method->save_lmf = 1;
3166 /* Count the number of parameters that need to be serialized */
3168 marshal_types = alloca (sizeof (int) * sig->param_count);
3169 complex_count = complex_out_count = 0;
3170 for (i = 0; i < sig->param_count; i++) {
3171 MonoType *ptype = sig->params[i];
3172 int mt = mono_get_xdomain_marshal_type (ptype);
3174 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3175 * the copy will be made by reusing the original object instance
3177 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3178 mt = MONO_MARSHAL_COPY_OUT;
3179 else if (mt == MONO_MARSHAL_SERIALIZE) {
3181 if (ptype->byref) complex_out_count++;
3183 marshal_types [i] = mt;
3186 if (sig->ret->type != MONO_TYPE_VOID) {
3187 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3188 ret_class = mono_class_from_mono_type (sig->ret);
3189 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3194 if (complex_count > 0)
3195 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3196 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3197 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3199 loc_return = mono_mb_add_local (mb, sig->ret);
3200 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3201 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3202 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3203 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3205 /* Save thread domain data */
3207 mono_mb_emit_icall (mb, mono_context_get);
3208 mono_mb_emit_byte (mb, CEE_DUP);
3209 mono_mb_emit_stloc (mb, loc_context);
3211 /* If the thread is not running in the default context, it needs to go
3212 * through the whole remoting sink, since the context is going to change
3214 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3215 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3217 /* Another case in which the fast path can't be used: when the target domain
3218 * has a different image for the same assembly.
3221 /* Get the target domain id */
3223 mono_mb_emit_ldarg (mb, 0);
3224 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3225 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3226 mono_mb_emit_byte (mb, CEE_DUP);
3227 mono_mb_emit_stloc (mb, loc_real_proxy);
3229 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3230 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3231 mono_mb_emit_stloc (mb, loc_domainid);
3233 /* Check if the target domain has the same image for the required assembly */
3235 mono_mb_emit_ldloc (mb, loc_domainid);
3236 mono_mb_emit_ptr (mb, method->klass->image);
3237 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3238 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3240 /* Use the whole remoting sink to dispatch this message */
3242 mono_mb_patch_short_branch (mb, pos);
3244 mono_mb_emit_ldarg (mb, 0);
3245 for (i = 0; i < sig->param_count; i++)
3246 mono_mb_emit_ldarg (mb, i + 1);
3248 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3249 mono_mb_emit_byte (mb, CEE_RET);
3250 mono_mb_patch_short_branch (mb, pos_dispatch);
3252 /* Create the array that will hold the parameters to be serialized */
3254 if (complex_count > 0) {
3255 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 */
3256 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3259 for (i = 0; i < sig->param_count; i++) {
3261 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3262 pclass = mono_class_from_mono_type (sig->params[i]);
3263 mono_mb_emit_byte (mb, CEE_DUP);
3264 mono_mb_emit_icon (mb, j);
3265 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3266 if (sig->params[i]->byref) {
3267 if (pclass->valuetype)
3268 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3270 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3272 if (pclass->valuetype)
3273 mono_mb_emit_op (mb, CEE_BOX, pclass);
3274 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3277 mono_mb_emit_stloc (mb, loc_array);
3279 /* Serialize parameters */
3281 mono_mb_emit_ldloc (mb, loc_array);
3282 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3283 mono_mb_emit_stloc (mb, loc_serialized_data);
3285 mono_mb_emit_byte (mb, CEE_LDNULL);
3286 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3287 mono_mb_emit_stloc (mb, loc_serialized_data);
3292 mono_mb_emit_ldloc (mb, loc_domainid);
3293 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3294 mono_marshal_emit_switch_domain (mb);
3295 mono_mb_emit_stloc (mb, loc_old_domainid);
3297 /* Load the arguments */
3299 mono_mb_emit_ldloc (mb, loc_real_proxy);
3300 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3301 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3303 copy_locals_base = mb->locals;
3304 for (i = 0; i < sig->param_count; i++) {
3305 switch (marshal_types [i]) {
3306 case MONO_MARSHAL_SERIALIZE:
3308 case MONO_MARSHAL_COPY: {
3309 mono_mb_emit_ldarg (mb, i+1);
3310 if (sig->params [i]->byref) {
3311 /* make a local copy of the byref parameter. The real parameter
3312 * will be updated after the xdomain call
3314 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3315 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3316 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3317 mono_mb_emit_stloc (mb, copy_local);
3318 mono_mb_emit_ldloc_addr (mb, copy_local);
3322 case MONO_MARSHAL_COPY_OUT:
3323 case MONO_MARSHAL_NONE:
3324 mono_mb_emit_ldarg (mb, i+1);
3329 /* Make the call to the invoke wrapper in the target domain */
3331 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3332 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3333 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3336 mono_mb_emit_stloc (mb, loc_return);
3340 mono_mb_emit_ldloc (mb, loc_old_domainid);
3341 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3342 mono_marshal_emit_switch_domain (mb);
3343 mono_mb_emit_byte (mb, CEE_POP);
3345 /* Restore thread domain data */
3347 mono_mb_emit_ldloc (mb, loc_context);
3348 mono_mb_emit_icall (mb, mono_context_set);
3350 /* if (loc_serialized_exc != null) ... */
3352 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3353 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3355 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3356 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3357 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3358 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3359 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3360 mono_mb_emit_byte (mb, CEE_THROW);
3361 mono_mb_patch_short_branch (mb, pos_noex);
3363 /* copy back non-serialized output parameters */
3366 for (i = 0; i < sig->param_count; i++) {
3367 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3368 mono_mb_emit_ldarg (mb, i + 1);
3369 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3370 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3371 mono_mb_emit_byte (mb, CEE_STIND_REF);
3374 /* Deserialize out parameters */
3376 if (complex_out_count > 0) {
3377 mono_mb_emit_ldloc (mb, loc_serialized_data);
3378 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3379 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3380 mono_mb_emit_stloc (mb, loc_array);
3382 /* Copy back output parameters and return type */
3385 for (i = 0; i < sig->param_count; i++) {
3386 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3387 if (sig->params[i]->byref) {
3388 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3389 mono_mb_emit_ldarg (mb, i + 1);
3390 mono_mb_emit_ldloc (mb, loc_array);
3391 mono_mb_emit_icon (mb, j);
3392 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3393 if (pclass->valuetype) {
3394 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3395 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3396 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3398 if (pclass != mono_defaults.object_class)
3399 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3400 mono_mb_emit_byte (mb, CEE_STIND_REF);
3406 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3407 mono_mb_emit_ldloc (mb, loc_array);
3408 mono_mb_emit_icon (mb, complex_count);
3409 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3410 if (ret_class->valuetype) {
3411 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3412 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3415 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3416 mono_mb_emit_ldloc (mb, loc_serialized_data);
3417 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3418 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3419 if (ret_class->valuetype) {
3420 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3421 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3422 } else if (ret_class != mono_defaults.object_class) {
3423 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3426 mono_mb_emit_ldloc (mb, loc_serialized_data);
3427 mono_mb_emit_byte (mb, CEE_DUP);
3428 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3429 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3431 mono_mb_patch_short_branch (mb, pos);
3432 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3433 mono_mb_emit_byte (mb, CEE_POP);
3437 mono_mb_emit_ldloc (mb, loc_return);
3438 if (ret_marshal_type == MONO_MARSHAL_COPY)
3439 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3442 mono_mb_emit_byte (mb, CEE_RET);
3444 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3451 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3453 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3454 return mono_marshal_get_xappdomain_invoke (method);
3455 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3457 return mono_cominterop_get_invoke (method);
3459 g_assert_not_reached ();
3462 return mono_marshal_get_remoting_invoke (method);
3468 G_GNUC_UNUSED static gpointer
3469 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3471 if (rp->target_domain_id != -1)
3472 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3474 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3478 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3480 MonoMethodSignature *sig;
3481 MonoMethodBuilder *mb;
3482 MonoMethod *res, *native;
3483 int i, pos, pos_rem;
3487 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3490 /* we cant remote methods without this pointer */
3491 g_assert (mono_method_signature (method)->hasthis);
3493 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3496 sig = mono_signature_no_pinvoke (method);
3498 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3500 for (i = 0; i <= sig->param_count; i++)
3501 mono_mb_emit_ldarg (mb, i);
3503 mono_mb_emit_ldarg (mb, 0);
3504 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3506 if (mono_marshal_supports_fast_xdomain (method)) {
3507 mono_mb_emit_ldarg (mb, 0);
3508 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3510 /* wrapper for cross app domain calls */
3511 native = mono_marshal_get_xappdomain_invoke (method);
3512 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3513 mono_mb_emit_byte (mb, CEE_RET);
3515 mono_mb_patch_branch (mb, pos_rem);
3517 /* wrapper for normal remote calls */
3518 native = mono_marshal_get_remoting_invoke (method);
3519 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3520 mono_mb_emit_byte (mb, CEE_RET);
3523 mono_mb_patch_branch (mb, pos);
3524 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3525 mono_mb_emit_byte (mb, CEE_RET);
3527 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3535 MonoMethodSignature *sig;
3537 } SignatureMethodPair;
3540 signature_method_pair_hash (gconstpointer data)
3542 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3544 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3548 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3550 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3554 free_signature_method_pair (SignatureMethodPair *pair)
3560 * the returned method invokes all methods in a multicast delegate.
3563 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3565 MonoMethodSignature *sig, *static_sig;
3567 MonoMethodBuilder *mb;
3568 MonoMethod *res, *newm;
3570 SignatureMethodPair key;
3571 SignatureMethodPair *new_key;
3572 int local_prev, local_target;
3575 MonoMethod *target_method = NULL;
3576 MonoClass *target_class = NULL;
3577 gboolean callvirt = FALSE;
3580 * If the delegate target is null, and the target method is not static, a virtual
3581 * call is made to that method with the first delegate argument as this. This is
3582 * a non-documented .NET feature.
3584 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3586 target_method = del->method;
3587 if (target_method->is_inflated) {
3588 MonoType *target_type;
3590 g_assert (method->signature->hasthis);
3591 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3592 mono_method_get_context (method));
3593 target_class = mono_class_from_mono_type (target_type);
3595 target_class = del->method->klass;
3599 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3600 !strcmp (method->name, "Invoke"));
3602 sig = mono_signature_no_pinvoke (method);
3605 /* We need to cache the signature+method pair */
3606 mono_marshal_lock ();
3607 if (!method->klass->image->delegate_abstract_invoke_cache)
3608 method->klass->image->delegate_abstract_invoke_cache = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
3609 cache = method->klass->image->delegate_abstract_invoke_cache;
3611 key.method = target_method;
3612 res = g_hash_table_lookup (cache, &key);
3613 mono_marshal_unlock ();
3617 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3618 (GHashFunc)mono_signature_hash,
3619 (GCompareFunc)mono_metadata_signature_equal);
3620 if ((res = mono_marshal_find_in_cache (cache, sig)))
3624 static_sig = signature_dup (method->klass->image, sig);
3625 static_sig->hasthis = 0;
3627 name = mono_signature_to_name (sig, "invoke");
3628 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3631 /* allocate local 0 (object) */
3632 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3633 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3635 g_assert (sig->hasthis);
3639 * prev.Invoke( args .. );
3640 * return this.<target>( args .. );
3643 /* this wrapper can be used in unmanaged-managed transitions */
3644 emit_thread_interrupt_checkpoint (mb);
3646 /* get this->prev */
3647 mono_mb_emit_ldarg (mb, 0);
3648 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3649 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3650 mono_mb_emit_stloc (mb, local_prev);
3651 mono_mb_emit_ldloc (mb, local_prev);
3653 /* if prev != null */
3654 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3658 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3659 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3661 mono_mb_emit_ldloc (mb, local_prev);
3662 for (i = 0; i < sig->param_count; i++)
3663 mono_mb_emit_ldarg (mb, i + 1);
3664 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3665 if (sig->ret->type != MONO_TYPE_VOID)
3666 mono_mb_emit_byte (mb, CEE_POP);
3668 /* continued or prev == null */
3669 mono_mb_patch_branch (mb, pos0);
3671 /* get this->target */
3672 mono_mb_emit_ldarg (mb, 0);
3673 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3674 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3675 mono_mb_emit_stloc (mb, local_target);
3677 /* if target != null */
3678 mono_mb_emit_ldloc (mb, local_target);
3679 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3681 /* then call this->method_ptr nonstatic */
3684 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3686 mono_mb_emit_ldloc (mb, local_target);
3687 for (i = 0; i < sig->param_count; ++i)
3688 mono_mb_emit_ldarg (mb, i + 1);
3689 mono_mb_emit_ldarg (mb, 0);
3690 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3691 mono_mb_emit_byte (mb, CEE_LDIND_I );
3692 mono_mb_emit_op (mb, CEE_CALLI, sig);
3694 mono_mb_emit_byte (mb, CEE_RET);
3697 /* else [target == null] call this->method_ptr static */
3698 mono_mb_patch_branch (mb, pos0);
3701 mono_mb_emit_ldarg (mb, 1);
3702 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3703 for (i = 1; i < sig->param_count; ++i)
3704 mono_mb_emit_ldarg (mb, i + 1);
3705 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3707 for (i = 0; i < sig->param_count; ++i)
3708 mono_mb_emit_ldarg (mb, i + 1);
3709 mono_mb_emit_ldarg (mb, 0);
3710 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3711 mono_mb_emit_byte (mb, CEE_LDIND_I );
3712 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3715 mono_mb_emit_byte (mb, CEE_RET);
3718 // From mono_mb_create_and_cache
3719 mb->skip_visibility = 1;
3720 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3721 /*We perform double checked locking, so must fence before publishing*/
3722 mono_memory_barrier ();
3723 mono_marshal_lock ();
3724 res = g_hash_table_lookup (cache, &key);
3727 new_key = g_new0 (SignatureMethodPair, 1);
3729 new_key->method = target_method;
3730 g_hash_table_insert (cache, new_key, res);
3731 mono_marshal_method_set_wrapper_data (res, new_key);
3732 mono_marshal_unlock ();
3734 mono_marshal_unlock ();
3735 mono_free_method (newm);
3738 mb->skip_visibility = 1;
3739 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3747 * signature_dup_add_this:
3749 * Make a copy of @sig, adding an explicit this argument.
3751 static MonoMethodSignature*
3752 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3754 MonoMethodSignature *res;
3757 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3758 memcpy (res, sig, sizeof (MonoMethodSignature));
3759 res->param_count = sig->param_count + 1;
3760 res->hasthis = FALSE;
3761 for (i = sig->param_count - 1; i >= 0; i --)
3762 res->params [i + 1] = sig->params [i];
3763 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3769 MonoMethodSignature *ctor_sig;
3770 MonoMethodSignature *sig;
3773 /* protected by the marshal lock, contains CtorSigPair pointers */
3774 static GSList *strsig_list = NULL;
3776 static MonoMethodSignature *
3777 lookup_string_ctor_signature (MonoMethodSignature *sig)
3779 MonoMethodSignature *callsig;
3783 mono_marshal_lock ();
3785 for (item = strsig_list; item; item = item->next) {
3787 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3788 * because it is lock-free.
3790 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3795 mono_marshal_unlock ();
3799 static MonoMethodSignature *
3800 add_string_ctor_signature (MonoMethod *method)
3802 MonoMethodSignature *callsig;
3805 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3806 callsig->ret = &mono_defaults.string_class->byval_arg;
3807 cs = g_new (CtorSigPair, 1);
3809 cs->ctor_sig = mono_method_signature (method);
3811 mono_marshal_lock ();
3812 strsig_list = g_slist_prepend (strsig_list, cs);
3813 mono_marshal_unlock ();
3818 get_runtime_invoke_type (MonoType *t, gboolean ret)
3821 if (t->type == MONO_TYPE_GENERICINST)
3824 return &mono_defaults.int_class->byval_arg;
3827 if (MONO_TYPE_IS_REFERENCE (t))
3828 return &mono_defaults.object_class->byval_arg;
3831 /* The result needs to be boxed */
3837 return &mono_defaults.sbyte_class->byval_arg;
3839 return &mono_defaults.int16_class->byval_arg;
3841 return &mono_defaults.int32_class->byval_arg;
3843 return &mono_defaults.int64_class->byval_arg;
3844 case MONO_TYPE_BOOLEAN:
3845 return &mono_defaults.sbyte_class->byval_arg;
3846 case MONO_TYPE_CHAR:
3847 return &mono_defaults.int16_class->byval_arg;
3850 return &mono_defaults.int_class->byval_arg;
3851 case MONO_TYPE_VALUETYPE:
3852 if (t->data.klass->enumtype) {
3853 t = mono_class_enum_basetype (t->data.klass);
3863 * mono_marshal_get_runtime_invoke_sig:
3865 * Return a common signature used for sharing runtime invoke wrappers.
3867 static MonoMethodSignature*
3868 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3870 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3873 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3874 for (i = 0; i < res->param_count; ++i)
3875 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3881 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3883 /* Can't share wrappers which return a vtype since it needs to be boxed */
3884 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))
3887 return mono_metadata_signature_equal (sig1, sig2);
3891 * get_wrapper_target_class:
3893 * Return the class where a wrapper method should be placed.
3896 get_wrapper_target_class (MonoImage *image)
3902 * - can't put all wrappers into an mscorlib class, because they reference
3903 * metadata (signature) so they should be put into the same image as the
3904 * method they wrap, so they are unloaded together.
3905 * - putting them into a class with a type initalizer could cause the
3906 * initializer to be executed which can be a problem if the wrappers are
3908 * - putting them into an inflated class can cause problems if the the
3909 * class is deleted because it references an image which is unloaded.
3910 * To avoid these problems, we put the wrappers into the <Module> class of
3913 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
3920 * generates IL code for the runtime invoke function
3921 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3923 * we also catch exceptions if exc != null
3924 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3925 * it means that the compiled code for METHOD does not have to be looked up
3926 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3927 * its METHOD argument.
3930 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3932 MonoMethodSignature *sig, *csig, *callsig;
3933 MonoExceptionClause *clause;
3934 MonoMethodBuilder *mb;
3935 GHashTable *cache = NULL;
3936 MonoClass *target_klass;
3937 MonoMethod *res = NULL;
3938 static MonoString *string_dummy = NULL;
3939 static MonoMethodSignature *cctor_signature = NULL;
3940 static MonoMethodSignature *finalize_signature = NULL;
3943 gboolean need_direct_wrapper = FALSE;
3944 int *tmp_nullable_locals;
3948 if (!cctor_signature) {
3949 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3950 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3952 if (!finalize_signature) {
3953 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3954 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3955 finalize_signature->hasthis = 1;
3959 need_direct_wrapper = TRUE;
3962 * Use a separate cache indexed by methods to speed things up and to avoid the
3963 * boundless mempool growth caused by the signature_dup stuff below.
3966 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3968 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3969 res = mono_marshal_find_in_cache (cache, method);
3973 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3974 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3976 * Array Get/Set/Address methods. The JIT implements them using inline code
3977 * so we need to create an invoke wrapper which calls the method directly.
3979 need_direct_wrapper = TRUE;
3982 if (method->string_ctor) {
3983 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3985 callsig = add_string_ctor_signature (method);
3986 /* Can't share this as we push a string as this */
3987 need_direct_wrapper = TRUE;
3989 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
3991 * Valuetype methods receive a managed pointer as the this argument.
3992 * Create a new signature to reflect this.
3994 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
3996 if (method->dynamic)
3997 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3999 callsig = mono_method_signature (method);
4004 /* Vtypes/nullables/Byrefs cause too many problems */
4005 for (i = 0; i < callsig->param_count; ++i) {
4006 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4007 need_direct_wrapper = TRUE;
4012 * We try to share runtime invoke wrappers between different methods but have to
4013 * be careful about methods whose klass has a type cctor, since putting the wrapper
4014 * into that klass would mean that calling a method of klass A might invoke the
4015 * type initializer of class B, or throw an exception if the type initializer
4016 * was called before and failed. See #349621 for an example.
4017 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4019 if (method->klass->image == mono_defaults.corlib)
4020 target_klass = mono_defaults.object_class;
4022 /* Try to share wrappers for non-corlib methods with simple signatures */
4023 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4024 callsig = cctor_signature;
4025 target_klass = mono_defaults.object_class;
4026 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4027 callsig = finalize_signature;
4028 target_klass = mono_defaults.object_class;
4030 // FIXME: This breaks too many things
4032 if (mono_class_get_cctor (method->klass))
4033 need_direct_wrapper = TRUE;
4036 target_klass = get_wrapper_target_class (method->klass->image);
4040 if (need_direct_wrapper) {
4041 /* Already searched at the start */
4043 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4045 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4046 (GHashFunc)mono_signature_hash,
4047 (GCompareFunc)runtime_invoke_signature_equal);
4049 /* from mono_marshal_find_in_cache */
4050 mono_marshal_lock ();
4051 res = g_hash_table_lookup (cache, callsig);
4052 mono_marshal_unlock ();
4059 // FIXME: When to free callsig ?
4062 /* to make it work with our special string constructors */
4063 if (!string_dummy) {
4064 MONO_GC_REGISTER_ROOT (string_dummy);
4065 string_dummy = mono_string_new_wrapper ("dummy");
4068 sig = mono_method_signature (method);
4070 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4072 csig->ret = &mono_defaults.object_class->byval_arg;
4073 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4074 csig->params [0] = callsig->params [0];
4076 csig->params [0] = &mono_defaults.object_class->byval_arg;
4077 csig->params [1] = &mono_defaults.int_class->byval_arg;
4078 csig->params [2] = &mono_defaults.int_class->byval_arg;
4079 csig->params [3] = &mono_defaults.int_class->byval_arg;
4081 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4082 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4085 /* allocate local 0 (object) tmp */
4086 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4087 /* allocate local 1 (object) exc */
4088 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4090 /* cond set *exc to null */
4091 mono_mb_emit_byte (mb, CEE_LDARG_2);
4092 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4093 mono_mb_emit_byte (mb, 3);
4094 mono_mb_emit_byte (mb, CEE_LDARG_2);
4095 mono_mb_emit_byte (mb, CEE_LDNULL);
4096 mono_mb_emit_byte (mb, CEE_STIND_REF);
4098 emit_thread_force_interrupt_checkpoint (mb);
4101 g_assert (sig->hasthis);
4102 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4106 if (method->string_ctor) {
4107 mono_mb_emit_ptr (mb, string_dummy);
4109 mono_mb_emit_ldarg (mb, 0);
4113 tmp_nullable_locals = g_new0 (int, sig->param_count);
4115 for (i = 0; i < sig->param_count; i++) {
4116 MonoType *t = sig->params [i];
4119 mono_mb_emit_ldarg (mb, 1);
4121 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4122 mono_mb_emit_byte (mb, CEE_ADD);
4126 mono_mb_emit_byte (mb, CEE_LDIND_I);
4127 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4128 * So to make this work we unbox it to a local variablee and push a reference to that.
4130 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4131 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4133 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4134 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4135 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4140 type = sig->params [i]->type;
4144 case MONO_TYPE_BOOLEAN:
4148 case MONO_TYPE_CHAR:
4157 mono_mb_emit_byte (mb, CEE_LDIND_I);
4158 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4160 case MONO_TYPE_STRING:
4161 case MONO_TYPE_CLASS:
4162 case MONO_TYPE_ARRAY:
4164 case MONO_TYPE_SZARRAY:
4165 case MONO_TYPE_OBJECT:
4166 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4168 case MONO_TYPE_GENERICINST:
4169 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4170 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4175 case MONO_TYPE_VALUETYPE:
4176 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4177 type = mono_class_enum_basetype (t->data.klass)->type;
4180 mono_mb_emit_byte (mb, CEE_LDIND_I);
4181 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4182 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4183 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4184 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4186 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4190 g_assert_not_reached ();
4195 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4196 } else if (need_direct_wrapper) {
4197 mono_mb_emit_op (mb, CEE_CALL, method);
4199 mono_mb_emit_ldarg (mb, 3);
4200 mono_mb_emit_calli (mb, callsig);
4203 if (sig->ret->byref) {
4205 g_assert_not_reached ();
4209 switch (sig->ret->type) {
4210 case MONO_TYPE_VOID:
4211 if (!method->string_ctor)
4212 mono_mb_emit_byte (mb, CEE_LDNULL);
4214 case MONO_TYPE_BOOLEAN:
4215 case MONO_TYPE_CHAR:
4228 case MONO_TYPE_VALUETYPE:
4229 case MONO_TYPE_TYPEDBYREF:
4230 case MONO_TYPE_GENERICINST:
4231 /* box value types */
4232 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4234 case MONO_TYPE_STRING:
4235 case MONO_TYPE_CLASS:
4236 case MONO_TYPE_ARRAY:
4237 case MONO_TYPE_SZARRAY:
4238 case MONO_TYPE_OBJECT:
4243 g_assert_not_reached ();
4246 mono_mb_emit_stloc (mb, 0);
4248 /* Convert back nullable-byref arguments */
4249 for (i = 0; i < sig->param_count; i++) {
4250 MonoType *t = sig->params [i];
4253 * Box the result and put it back into the array, the caller will have
4254 * to obtain it from there.
4256 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4257 mono_mb_emit_ldarg (mb, 1);
4258 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4259 mono_mb_emit_byte (mb, CEE_ADD);
4261 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4262 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4264 mono_mb_emit_byte (mb, CEE_STIND_REF);
4268 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4270 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4271 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4272 clause->try_len = mono_mb_get_label (mb);
4275 clause->data.filter_offset = mono_mb_get_label (mb);
4277 mono_mb_emit_byte (mb, CEE_POP);
4278 mono_mb_emit_byte (mb, CEE_LDARG_2);
4279 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4280 mono_mb_emit_byte (mb, CEE_PREFIX1);
4281 mono_mb_emit_byte (mb, CEE_CGT_UN);
4282 mono_mb_emit_byte (mb, CEE_PREFIX1);
4283 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4285 clause->handler_offset = mono_mb_get_label (mb);
4288 /* store exception */
4289 mono_mb_emit_stloc (mb, 1);
4291 mono_mb_emit_byte (mb, CEE_LDARG_2);
4292 mono_mb_emit_ldloc (mb, 1);
4293 mono_mb_emit_byte (mb, CEE_STIND_REF);
4295 mono_mb_emit_byte (mb, CEE_LDNULL);
4296 mono_mb_emit_stloc (mb, 0);
4298 /* Check for the abort exception */
4299 mono_mb_emit_ldloc (mb, 1);
4300 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4301 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4303 /* Delay the abort exception */
4304 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4306 mono_mb_patch_short_branch (mb, posna);
4307 mono_mb_emit_branch (mb, CEE_LEAVE);
4309 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4311 mono_mb_set_clauses (mb, 1, clause);
4314 mono_mb_patch_branch (mb, pos);
4315 mono_mb_emit_ldloc (mb, 0);
4316 mono_mb_emit_byte (mb, CEE_RET);
4318 if (need_direct_wrapper) {
4319 mb->skip_visibility = 1;
4320 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4322 /* taken from mono_mb_create_and_cache */
4323 mono_marshal_lock ();
4324 res = g_hash_table_lookup (cache, callsig);
4325 mono_marshal_unlock ();
4327 /* Somebody may have created it before us */
4330 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4332 mono_marshal_lock ();
4333 res = g_hash_table_lookup (cache, callsig);
4336 g_hash_table_insert (cache, callsig, res);
4337 /* Can't insert it into wrapper_hash since the key is a signature */
4338 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4340 mono_free_method (newm);
4342 mono_marshal_unlock ();
4345 /* end mono_mb_create_and_cache */
4354 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4356 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4357 klass->name_space, klass->name);
4359 mono_mb_emit_exception_marshal_directive (mb, msg);
4363 * mono_marshal_get_ldfld_remote_wrapper:
4364 * @klass: The return type
4366 * This method generates a wrapper for calling mono_load_remote_field_new.
4367 * The return type is ignored for now, as mono_load_remote_field_new () always
4368 * returns an object. In the future, to optimize some codepaths, we might
4369 * call a different function that takes a pointer to a valuetype, instead.
4372 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4374 MonoMethodSignature *sig, *csig;
4375 MonoMethodBuilder *mb;
4377 static MonoMethod* cached = NULL;
4379 mono_marshal_lock ();
4381 mono_marshal_unlock ();
4384 mono_marshal_unlock ();
4386 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4388 mb->method->save_lmf = 1;
4390 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4391 sig->params [0] = &mono_defaults.object_class->byval_arg;
4392 sig->params [1] = &mono_defaults.int_class->byval_arg;
4393 sig->params [2] = &mono_defaults.int_class->byval_arg;
4394 sig->ret = &mono_defaults.object_class->byval_arg;
4396 mono_mb_emit_ldarg (mb, 0);
4397 mono_mb_emit_ldarg (mb, 1);
4398 mono_mb_emit_ldarg (mb, 2);
4400 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4401 csig->params [0] = &mono_defaults.object_class->byval_arg;
4402 csig->params [1] = &mono_defaults.int_class->byval_arg;
4403 csig->params [2] = &mono_defaults.int_class->byval_arg;
4404 csig->ret = &mono_defaults.object_class->byval_arg;
4407 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4408 emit_thread_interrupt_checkpoint (mb);
4410 mono_mb_emit_byte (mb, CEE_RET);
4412 mono_marshal_lock ();
4414 mono_marshal_unlock ();
4417 newm = mono_mb_create_method (mb, sig, 4);
4418 mono_marshal_lock ();
4423 mono_marshal_unlock ();
4425 mono_marshal_unlock ();
4426 mono_free_method (newm);
4435 * mono_marshal_get_ldfld_wrapper:
4436 * @type: the type of the field
4438 * This method generates a function which can be use to load a field with type
4439 * @type from an object. The generated function has the following signature:
4440 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4443 mono_marshal_get_ldfld_wrapper (MonoType *type)
4445 MonoMethodSignature *sig;
4446 MonoMethodBuilder *mb;
4451 int t, pos0, pos1 = 0;
4453 type = mono_type_get_underlying_type (type);
4458 if (type->type == MONO_TYPE_SZARRAY) {
4459 klass = mono_defaults.array_class;
4460 } else if (type->type == MONO_TYPE_VALUETYPE) {
4461 klass = type->data.klass;
4462 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4463 klass = mono_defaults.object_class;
4464 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4465 klass = mono_defaults.int_class;
4466 } else if (t == MONO_TYPE_GENERICINST) {
4467 if (mono_type_generic_inst_is_valuetype (type))
4468 klass = mono_class_from_mono_type (type);
4470 klass = mono_defaults.object_class;
4472 klass = mono_class_from_mono_type (type);
4475 klass = mono_defaults.int_class;
4478 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4479 if ((res = mono_marshal_find_in_cache (cache, klass)))
4482 /* we add the %p pointer value of klass because class names are not unique */
4483 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4484 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4487 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4488 sig->params [0] = &mono_defaults.object_class->byval_arg;
4489 sig->params [1] = &mono_defaults.int_class->byval_arg;
4490 sig->params [2] = &mono_defaults.int_class->byval_arg;
4491 sig->params [3] = &mono_defaults.int_class->byval_arg;
4492 sig->ret = &klass->byval_arg;
4494 mono_mb_emit_ldarg (mb, 0);
4495 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4497 mono_mb_emit_ldarg (mb, 0);
4498 mono_mb_emit_ldarg (mb, 1);
4499 mono_mb_emit_ldarg (mb, 2);
4501 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4504 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4505 csig->params [0] = &mono_defaults.object_class->byval_arg;
4506 csig->params [1] = &mono_defaults.int_class->byval_arg;
4507 csig->params [2] = &mono_defaults.int_class->byval_arg;
4508 csig->ret = &klass->this_arg;
4511 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4512 emit_thread_interrupt_checkpoint (mb);
4515 if (klass->valuetype) {
4516 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4517 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4519 mono_mb_emit_byte (mb, CEE_RET);
4523 mono_mb_patch_branch (mb, pos0);
4525 mono_mb_emit_ldarg (mb, 0);
4526 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4527 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4528 mono_mb_emit_ldarg (mb, 3);
4529 mono_mb_emit_byte (mb, CEE_ADD);
4531 if (klass->valuetype)
4532 mono_mb_patch_branch (mb, pos1);
4537 case MONO_TYPE_BOOLEAN:
4538 case MONO_TYPE_CHAR:
4547 case MONO_TYPE_ARRAY:
4548 case MONO_TYPE_SZARRAY:
4549 case MONO_TYPE_OBJECT:
4550 case MONO_TYPE_CLASS:
4551 case MONO_TYPE_STRING:
4555 case MONO_TYPE_FNPTR:
4556 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4558 case MONO_TYPE_VALUETYPE:
4559 g_assert (!klass->enumtype);
4560 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4562 case MONO_TYPE_GENERICINST:
4563 if (mono_type_generic_inst_is_valuetype (type)) {
4564 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4566 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4570 g_warning ("type %x not implemented", type->type);
4571 g_assert_not_reached ();
4574 mono_mb_emit_byte (mb, CEE_RET);
4576 res = mono_mb_create_and_cache (cache, klass,
4577 mb, sig, sig->param_count + 16);
4584 * mono_marshal_get_ldflda_wrapper:
4585 * @type: the type of the field
4587 * This method generates a function which can be used to load a field address
4588 * from an object. The generated function has the following signature:
4589 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4592 mono_marshal_get_ldflda_wrapper (MonoType *type)
4594 MonoMethodSignature *sig;
4595 MonoMethodBuilder *mb;
4600 int t, pos0, pos1, pos2, pos3;
4602 type = mono_type_get_underlying_type (type);
4606 if (type->type == MONO_TYPE_SZARRAY) {
4607 klass = mono_defaults.array_class;
4608 } else if (type->type == MONO_TYPE_VALUETYPE) {
4609 klass = type->data.klass;
4610 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4611 t == MONO_TYPE_CLASS) {
4612 klass = mono_defaults.object_class;
4613 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4614 klass = mono_defaults.int_class;
4615 } else if (t == MONO_TYPE_GENERICINST) {
4616 if (mono_type_generic_inst_is_valuetype (type))
4617 klass = mono_class_from_mono_type (type);
4619 klass = mono_defaults.object_class;
4621 klass = mono_class_from_mono_type (type);
4624 klass = mono_defaults.int_class;
4627 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4628 if ((res = mono_marshal_find_in_cache (cache, klass)))
4631 /* we add the %p pointer value of klass because class names are not unique */
4632 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4633 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4636 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4637 sig->params [0] = &mono_defaults.object_class->byval_arg;
4638 sig->params [1] = &mono_defaults.int_class->byval_arg;
4639 sig->params [2] = &mono_defaults.int_class->byval_arg;
4640 sig->params [3] = &mono_defaults.int_class->byval_arg;
4641 sig->ret = &mono_defaults.int_class->byval_arg;
4643 /* if typeof (this) != transparent_proxy goto pos0 */
4644 mono_mb_emit_ldarg (mb, 0);
4645 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4647 /* if same_appdomain goto pos1 */
4648 mono_mb_emit_ldarg (mb, 0);
4649 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4651 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4653 /* same app domain */
4654 mono_mb_patch_branch (mb, pos1);
4656 /* if typeof (this) != contextbound goto pos2 */
4657 mono_mb_emit_ldarg (mb, 0);
4658 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4660 /* if this->rp->context == mono_context_get goto pos3 */
4661 mono_mb_emit_ldarg (mb, 0);
4662 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4663 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4664 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4665 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4666 mono_mb_emit_icall (mb, mono_context_get);
4667 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4669 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4671 mono_mb_patch_branch (mb, pos2);
4672 mono_mb_patch_branch (mb, pos3);
4674 /* return the address of the field from this->rp->unwrapped_server */
4675 mono_mb_emit_ldarg (mb, 0);
4676 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4677 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4678 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4679 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4680 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4681 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4682 mono_mb_emit_ldarg (mb, 3);
4683 mono_mb_emit_byte (mb, CEE_ADD);
4684 mono_mb_emit_byte (mb, CEE_RET);
4686 /* not a proxy: return the address of the field directly */
4687 mono_mb_patch_branch (mb, pos0);
4689 mono_mb_emit_ldarg (mb, 0);
4690 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4691 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4692 mono_mb_emit_ldarg (mb, 3);
4693 mono_mb_emit_byte (mb, CEE_ADD);
4695 mono_mb_emit_byte (mb, CEE_RET);
4697 res = mono_mb_create_and_cache (cache, klass,
4698 mb, sig, sig->param_count + 16);
4705 * mono_marshal_get_stfld_remote_wrapper:
4706 * klass: The type of the field
4708 * This function generates a wrapper for calling mono_store_remote_field_new
4709 * with the appropriate signature.
4710 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4711 * klass argument anymore.
4714 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4716 MonoMethodSignature *sig, *csig;
4717 MonoMethodBuilder *mb;
4719 static MonoMethod *cached = NULL;
4721 mono_marshal_lock ();
4723 mono_marshal_unlock ();
4726 mono_marshal_unlock ();
4728 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4730 mb->method->save_lmf = 1;
4732 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4733 sig->params [0] = &mono_defaults.object_class->byval_arg;
4734 sig->params [1] = &mono_defaults.int_class->byval_arg;
4735 sig->params [2] = &mono_defaults.int_class->byval_arg;
4736 sig->params [3] = &mono_defaults.object_class->byval_arg;
4737 sig->ret = &mono_defaults.void_class->byval_arg;
4739 mono_mb_emit_ldarg (mb, 0);
4740 mono_mb_emit_ldarg (mb, 1);
4741 mono_mb_emit_ldarg (mb, 2);
4742 mono_mb_emit_ldarg (mb, 3);
4744 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4745 csig->params [0] = &mono_defaults.object_class->byval_arg;
4746 csig->params [1] = &mono_defaults.int_class->byval_arg;
4747 csig->params [2] = &mono_defaults.int_class->byval_arg;
4748 csig->params [3] = &mono_defaults.object_class->byval_arg;
4749 csig->ret = &mono_defaults.void_class->byval_arg;
4752 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4753 emit_thread_interrupt_checkpoint (mb);
4755 mono_mb_emit_byte (mb, CEE_RET);
4757 mono_marshal_lock ();
4759 mono_marshal_unlock ();
4762 newm = mono_mb_create_method (mb, sig, 6);
4763 mono_marshal_lock ();
4768 mono_marshal_unlock ();
4770 mono_marshal_unlock ();
4771 mono_free_method (newm);
4780 * mono_marshal_get_stfld_wrapper:
4781 * @type: the type of the field
4783 * This method generates a function which can be use to store a field with type
4784 * @type. The generated function has the following signature:
4785 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4788 mono_marshal_get_stfld_wrapper (MonoType *type)
4790 MonoMethodSignature *sig;
4791 MonoMethodBuilder *mb;
4798 type = mono_type_get_underlying_type (type);
4802 if (type->type == MONO_TYPE_SZARRAY) {
4803 klass = mono_defaults.array_class;
4804 } else if (type->type == MONO_TYPE_VALUETYPE) {
4805 klass = type->data.klass;
4806 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4807 klass = mono_defaults.object_class;
4808 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4809 klass = mono_defaults.int_class;
4810 } else if (t == MONO_TYPE_GENERICINST) {
4811 if (mono_type_generic_inst_is_valuetype (type))
4812 klass = mono_class_from_mono_type (type);
4814 klass = mono_defaults.object_class;
4816 klass = mono_class_from_mono_type (type);
4819 klass = mono_defaults.int_class;
4822 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4823 if ((res = mono_marshal_find_in_cache (cache, klass)))
4826 /* we add the %p pointer value of klass because class names are not unique */
4827 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4828 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4831 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4832 sig->params [0] = &mono_defaults.object_class->byval_arg;
4833 sig->params [1] = &mono_defaults.int_class->byval_arg;
4834 sig->params [2] = &mono_defaults.int_class->byval_arg;
4835 sig->params [3] = &mono_defaults.int_class->byval_arg;
4836 sig->params [4] = &klass->byval_arg;
4837 sig->ret = &mono_defaults.void_class->byval_arg;
4839 mono_mb_emit_ldarg (mb, 0);
4840 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4842 mono_mb_emit_ldarg (mb, 0);
4843 mono_mb_emit_ldarg (mb, 1);
4844 mono_mb_emit_ldarg (mb, 2);
4845 mono_mb_emit_ldarg (mb, 4);
4846 if (klass->valuetype)
4847 mono_mb_emit_op (mb, CEE_BOX, klass);
4849 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4851 mono_mb_emit_byte (mb, CEE_RET);
4853 mono_mb_patch_branch (mb, pos);
4855 mono_mb_emit_ldarg (mb, 0);
4856 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4857 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4858 mono_mb_emit_ldarg (mb, 3);
4859 mono_mb_emit_byte (mb, CEE_ADD);
4860 mono_mb_emit_ldarg (mb, 4);
4865 case MONO_TYPE_BOOLEAN:
4866 case MONO_TYPE_CHAR:
4875 case MONO_TYPE_ARRAY:
4876 case MONO_TYPE_SZARRAY:
4877 case MONO_TYPE_OBJECT:
4878 case MONO_TYPE_CLASS:
4879 case MONO_TYPE_STRING:
4883 case MONO_TYPE_FNPTR:
4884 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4886 case MONO_TYPE_VALUETYPE:
4887 g_assert (!klass->enumtype);
4888 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4890 case MONO_TYPE_GENERICINST:
4891 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4894 g_warning ("type %x not implemented", type->type);
4895 g_assert_not_reached ();
4898 mono_mb_emit_byte (mb, CEE_RET);
4900 res = mono_mb_create_and_cache (cache, klass,
4901 mb, sig, sig->param_count + 16);
4908 * generates IL code for the icall wrapper (the generated method
4909 * calls the unmanaged code in func)
4912 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4914 MonoMethodSignature *csig;
4915 MonoMethodBuilder *mb;
4919 g_assert (sig->pinvoke);
4921 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4923 mb->method->save_lmf = 1;
4925 /* we copy the signature, so that we can modify it */
4928 mono_mb_emit_byte (mb, CEE_LDARG_0);
4930 for (i = 0; i < sig->param_count; i++)
4931 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4933 mono_mb_emit_native_call (mb, sig, (gpointer) func);
4934 if (check_exceptions)
4935 emit_thread_interrupt_checkpoint (mb);
4936 mono_mb_emit_byte (mb, CEE_RET);
4938 csig = signature_dup (mono_defaults.corlib, sig);
4940 if (csig->call_convention == MONO_CALL_VARARG)
4941 csig->call_convention = 0;
4943 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
4950 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4951 MonoMarshalSpec *spec,
4952 int conv_arg, MonoType **conv_arg_type,
4953 MarshalAction action)
4957 static MonoClass *ICustomMarshaler = NULL;
4958 static MonoMethod *cleanup_native, *cleanup_managed;
4959 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4960 MonoMethod *get_instance;
4961 MonoMethodBuilder *mb = m->mb;
4962 char *exception_msg = NULL;
4966 if (!ICustomMarshaler) {
4967 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4968 g_assert (ICustomMarshaler);
4970 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
4971 g_assert (cleanup_native);
4972 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
4973 g_assert (cleanup_managed);
4974 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
4975 g_assert (marshal_managed_to_native);
4976 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
4977 g_assert (marshal_native_to_managed);
4980 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4981 g_assert (mtype != NULL);
4982 mklass = mono_class_from_mono_type (mtype);
4983 g_assert (mklass != NULL);
4985 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4986 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4988 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4990 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4991 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4992 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4993 (get_sig->params [0]->type != MONO_TYPE_STRING))
4994 get_instance = NULL;
4998 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);
5000 /* Throw exception and emit compensation code if neccesary */
5001 if (exception_msg) {
5003 case MARSHAL_ACTION_CONV_IN:
5004 case MARSHAL_ACTION_CONV_RESULT:
5005 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5006 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5007 mono_mb_emit_byte (mb, CEE_POP);
5009 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5010 g_free (exception_msg);
5013 case MARSHAL_ACTION_PUSH:
5014 mono_mb_emit_byte (mb, CEE_LDNULL);
5022 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5023 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5026 case MARSHAL_ACTION_CONV_IN:
5028 case MONO_TYPE_CLASS:
5029 case MONO_TYPE_OBJECT:
5030 case MONO_TYPE_STRING:
5031 case MONO_TYPE_ARRAY:
5032 case MONO_TYPE_SZARRAY:
5033 case MONO_TYPE_VALUETYPE:
5037 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5038 g_assert_not_reached ();
5042 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5044 mono_mb_emit_byte (mb, CEE_LDNULL);
5045 mono_mb_emit_stloc (mb, conv_arg);
5047 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5050 /* Minic MS.NET behavior */
5051 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5054 /* Check for null */
5055 mono_mb_emit_ldarg (mb, argnum);
5057 mono_mb_emit_byte (mb, CEE_LDIND_I);
5058 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5060 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5062 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5064 mono_mb_emit_ldarg (mb, argnum);
5066 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5068 if (t->type == MONO_TYPE_VALUETYPE) {
5070 * Since we can't determine the type of the argument, we
5071 * will assume the unmanaged function takes a pointer.
5073 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5075 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5078 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5079 mono_mb_emit_stloc (mb, conv_arg);
5081 mono_mb_patch_branch (mb, pos2);
5084 case MARSHAL_ACTION_CONV_OUT:
5085 /* Check for null */
5086 mono_mb_emit_ldloc (mb, conv_arg);
5087 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5090 mono_mb_emit_ldarg (mb, argnum);
5092 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5094 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5096 mono_mb_emit_ldloc (mb, conv_arg);
5097 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5098 mono_mb_emit_byte (mb, CEE_STIND_REF);
5099 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5100 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5102 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5104 mono_mb_emit_ldloc (mb, conv_arg);
5105 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5107 /* We have nowhere to store the result */
5108 mono_mb_emit_byte (mb, CEE_POP);
5111 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5113 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5115 mono_mb_emit_ldloc (mb, conv_arg);
5117 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5119 mono_mb_patch_branch (mb, pos2);
5122 case MARSHAL_ACTION_PUSH:
5124 mono_mb_emit_ldloc_addr (mb, conv_arg);
5126 mono_mb_emit_ldloc (mb, conv_arg);
5129 case MARSHAL_ACTION_CONV_RESULT:
5130 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5132 mono_mb_emit_stloc (mb, 3);
5134 mono_mb_emit_ldloc (mb, 3);
5135 mono_mb_emit_stloc (mb, loc1);
5137 /* Check for null */
5138 mono_mb_emit_ldloc (mb, 3);
5139 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5141 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5143 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5144 mono_mb_emit_byte (mb, CEE_DUP);
5146 mono_mb_emit_ldloc (mb, 3);
5147 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5148 mono_mb_emit_stloc (mb, 3);
5150 mono_mb_emit_ldloc (mb, loc1);
5151 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5153 mono_mb_patch_branch (mb, pos2);
5156 case MARSHAL_ACTION_MANAGED_CONV_IN:
5157 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5159 mono_mb_emit_byte (mb, CEE_LDNULL);
5160 mono_mb_emit_stloc (mb, conv_arg);
5162 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5165 /* Check for null */
5166 mono_mb_emit_ldarg (mb, argnum);
5168 mono_mb_emit_byte (mb, CEE_LDIND_I);
5169 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5171 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5172 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5174 mono_mb_emit_ldarg (mb, argnum);
5176 mono_mb_emit_byte (mb, CEE_LDIND_I);
5178 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5179 mono_mb_emit_stloc (mb, conv_arg);
5181 mono_mb_patch_branch (mb, pos2);
5184 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5185 g_assert (!t->byref);
5187 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5189 mono_mb_emit_stloc (mb, 3);
5191 mono_mb_emit_ldloc (mb, 3);
5192 mono_mb_emit_stloc (mb, loc1);
5194 /* Check for null */
5195 mono_mb_emit_ldloc (mb, 3);
5196 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5198 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5199 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5200 mono_mb_emit_byte (mb, CEE_DUP);
5202 mono_mb_emit_ldloc (mb, 3);
5203 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5204 mono_mb_emit_stloc (mb, 3);
5206 mono_mb_emit_ldloc (mb, loc1);
5207 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5209 mono_mb_patch_branch (mb, pos2);
5212 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5214 /* Check for null */
5215 mono_mb_emit_ldloc (mb, conv_arg);
5216 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5219 mono_mb_emit_ldarg (mb, argnum);
5221 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5223 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5225 mono_mb_emit_ldloc (mb, conv_arg);
5226 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5227 mono_mb_emit_byte (mb, CEE_STIND_I);
5230 /* Call CleanUpManagedData */
5231 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5233 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5235 mono_mb_emit_ldloc (mb, conv_arg);
5236 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5238 mono_mb_patch_branch (mb, pos2);
5242 g_assert_not_reached ();
5249 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5250 MonoMarshalSpec *spec,
5251 int conv_arg, MonoType **conv_arg_type,
5252 MarshalAction action)
5254 MonoMethodBuilder *mb = m->mb;
5257 case MARSHAL_ACTION_CONV_IN: {
5258 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5260 g_assert (t->type == MONO_TYPE_OBJECT);
5261 g_assert (!t->byref);
5263 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5264 mono_mb_emit_ldarg (mb, argnum);
5265 mono_mb_emit_icon (mb, encoding);
5266 mono_mb_emit_icon (mb, t->attrs);
5267 mono_mb_emit_icall (mb, mono_marshal_asany);
5268 mono_mb_emit_stloc (mb, conv_arg);
5272 case MARSHAL_ACTION_PUSH:
5273 mono_mb_emit_ldloc (mb, conv_arg);
5276 case MARSHAL_ACTION_CONV_OUT: {
5277 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5279 mono_mb_emit_ldarg (mb, argnum);
5280 mono_mb_emit_ldloc (mb, conv_arg);
5281 mono_mb_emit_icon (mb, encoding);
5282 mono_mb_emit_icon (mb, t->attrs);
5283 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5288 g_assert_not_reached ();
5295 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5296 MonoMarshalSpec *spec,
5297 int conv_arg, MonoType **conv_arg_type,
5298 MarshalAction action)
5300 MonoMethodBuilder *mb = m->mb;
5304 klass = mono_class_from_mono_type (t);
5307 case MARSHAL_ACTION_CONV_IN:
5308 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5309 klass->blittable || klass->enumtype)
5312 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5314 /* store the address of the source into local variable 0 */
5316 mono_mb_emit_ldarg (mb, argnum);
5318 mono_mb_emit_ldarg_addr (mb, argnum);
5320 mono_mb_emit_stloc (mb, 0);
5322 /* allocate space for the native struct and
5323 * store the address into local variable 1 (dest) */
5324 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5325 mono_mb_emit_byte (mb, CEE_PREFIX1);
5326 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5327 mono_mb_emit_stloc (mb, conv_arg);
5330 mono_mb_emit_ldloc (mb, 0);
5331 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5334 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5336 mono_mb_emit_ldloc (mb, conv_arg);
5337 mono_mb_emit_stloc (mb, 1);
5339 /* emit valuetype conversion code */
5340 emit_struct_conv (mb, klass, FALSE);
5344 mono_mb_patch_branch (mb, pos);
5347 case MARSHAL_ACTION_PUSH:
5348 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5350 g_assert (!t->byref);
5352 /* Have to change the signature since the vtype is passed byref */
5353 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5355 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5356 klass->blittable || klass->enumtype)
5357 mono_mb_emit_ldarg_addr (mb, argnum);
5359 mono_mb_emit_ldloc (mb, conv_arg);
5363 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5364 klass->blittable || klass->enumtype) {
5365 mono_mb_emit_ldarg (mb, argnum);
5368 mono_mb_emit_ldloc (mb, conv_arg);
5370 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5371 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5375 case MARSHAL_ACTION_CONV_OUT:
5376 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5377 klass->blittable || klass->enumtype)
5381 /* dst = argument */
5382 mono_mb_emit_ldarg (mb, argnum);
5383 mono_mb_emit_stloc (mb, 1);
5385 mono_mb_emit_ldloc (mb, 1);
5386 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5388 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5389 /* src = tmp_locals [i] */
5390 mono_mb_emit_ldloc (mb, conv_arg);
5391 mono_mb_emit_stloc (mb, 0);
5393 /* emit valuetype conversion code */
5394 emit_struct_conv (mb, klass, TRUE);
5398 emit_struct_free (mb, klass, conv_arg);
5401 mono_mb_patch_branch (mb, pos);
5404 case MARSHAL_ACTION_CONV_RESULT:
5405 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5407 mono_mb_emit_stloc (mb, 3);
5410 /* load pointer to returned value type */
5411 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5412 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5413 /* store the address of the source into local variable 0 */
5414 mono_mb_emit_stloc (mb, 0);
5416 mono_mb_emit_ldloc_addr (mb, 3);
5417 mono_mb_emit_stloc (mb, 1);
5419 /* emit valuetype conversion code */
5420 emit_struct_conv (mb, klass, TRUE);
5423 case MARSHAL_ACTION_MANAGED_CONV_IN:
5424 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5425 klass->blittable || klass->enumtype) {
5430 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5432 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5436 mono_mb_emit_ldarg (mb, argnum);
5438 mono_mb_emit_ldarg_addr (mb, argnum);
5439 mono_mb_emit_stloc (mb, 0);
5442 mono_mb_emit_ldloc (mb, 0);
5443 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5446 mono_mb_emit_ldloc_addr (mb, conv_arg);
5447 mono_mb_emit_stloc (mb, 1);
5449 /* emit valuetype conversion code */
5450 emit_struct_conv (mb, klass, TRUE);
5453 mono_mb_patch_branch (mb, pos);
5456 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5457 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5458 klass->blittable || klass->enumtype) {
5462 /* Check for null */
5463 mono_mb_emit_ldarg (mb, argnum);
5464 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5467 mono_mb_emit_ldloc_addr (mb, conv_arg);
5468 mono_mb_emit_stloc (mb, 0);
5471 mono_mb_emit_ldarg (mb, argnum);
5472 mono_mb_emit_stloc (mb, 1);
5474 /* emit valuetype conversion code */
5475 emit_struct_conv (mb, klass, FALSE);
5477 mono_mb_patch_branch (mb, pos2);
5480 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5481 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5482 klass->blittable || klass->enumtype) {
5483 mono_mb_emit_stloc (mb, 3);
5488 /* load pointer to returned value type */
5489 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5490 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5492 /* store the address of the source into local variable 0 */
5493 mono_mb_emit_stloc (mb, 0);
5494 /* allocate space for the native struct and
5495 * store the address into dst_ptr */
5496 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5497 m->retobj_class = klass;
5498 g_assert (m->retobj_var);
5499 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5500 mono_mb_emit_byte (mb, CEE_CONV_I);
5501 mono_mb_emit_icall (mb, mono_marshal_alloc);
5502 mono_mb_emit_stloc (mb, 1);
5503 mono_mb_emit_ldloc (mb, 1);
5504 mono_mb_emit_stloc (mb, m->retobj_var);
5506 /* emit valuetype conversion code */
5507 emit_struct_conv (mb, klass, FALSE);
5511 g_assert_not_reached ();
5518 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5519 MonoMarshalSpec *spec,
5520 int conv_arg, MonoType **conv_arg_type,
5521 MarshalAction action)
5523 MonoMethodBuilder *mb = m->mb;
5524 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5525 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5529 case MARSHAL_ACTION_CONV_IN:
5530 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5531 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5534 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5537 mono_mb_emit_ldarg (mb, argnum);
5538 mono_mb_emit_byte (mb, CEE_LDIND_I);
5540 mono_mb_emit_ldarg (mb, argnum);
5544 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5545 MonoException *exc = mono_get_exception_not_implemented (msg);
5548 mono_raise_exception (exc);
5551 mono_mb_emit_icall (mb, conv_to_icall (conv));
5553 mono_mb_emit_stloc (mb, conv_arg);
5556 case MARSHAL_ACTION_CONV_OUT:
5557 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5559 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5560 mono_mb_emit_exception_marshal_directive (mb, msg);
5564 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5565 mono_mb_emit_ldarg (mb, argnum);
5566 mono_mb_emit_ldloc (mb, conv_arg);
5567 mono_mb_emit_icall (mb, conv_to_icall (conv));
5568 mono_mb_emit_byte (mb, CEE_STIND_REF);
5571 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5572 mono_mb_emit_ldloc (mb, conv_arg);
5573 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5574 mono_mb_emit_icall (mb, mono_free_bstr);
5576 mono_mb_emit_icall (mb, mono_marshal_free);
5580 case MARSHAL_ACTION_PUSH:
5582 mono_mb_emit_ldloc_addr (mb, conv_arg);
5584 mono_mb_emit_ldloc (mb, conv_arg);
5587 case MARSHAL_ACTION_CONV_RESULT:
5588 mono_mb_emit_stloc (mb, 0);
5590 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5592 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5593 mono_mb_emit_exception_marshal_directive (mb, msg);
5597 mono_mb_emit_ldloc (mb, 0);
5598 mono_mb_emit_icall (mb, conv_to_icall (conv));
5599 mono_mb_emit_stloc (mb, 3);
5601 /* free the string */
5602 mono_mb_emit_ldloc (mb, 0);
5603 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5604 mono_mb_emit_icall (mb, mono_free_bstr);
5606 mono_mb_emit_icall (mb, mono_marshal_free);
5609 case MARSHAL_ACTION_MANAGED_CONV_IN:
5610 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5612 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5614 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5616 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5617 mono_mb_emit_exception_marshal_directive (mb, msg);
5621 mono_mb_emit_ldarg (mb, argnum);
5623 mono_mb_emit_byte (mb, CEE_LDIND_I);
5624 mono_mb_emit_icall (mb, conv_to_icall (conv));
5625 mono_mb_emit_stloc (mb, conv_arg);
5628 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5631 mono_mb_emit_ldarg (mb, argnum);
5632 mono_mb_emit_ldloc (mb, conv_arg);
5633 mono_mb_emit_icall (mb, conv_to_icall (conv));
5634 mono_mb_emit_byte (mb, CEE_STIND_I);
5639 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5640 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5641 /* We need to make a copy so the caller is able to free it */
5642 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5644 mono_mb_emit_icall (mb, conv_to_icall (conv));
5645 mono_mb_emit_stloc (mb, 3);
5649 g_assert_not_reached ();
5656 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5657 MonoMarshalSpec *spec, int conv_arg,
5658 MonoType **conv_arg_type, MarshalAction action)
5660 MonoMethodBuilder *mb = m->mb;
5663 case MARSHAL_ACTION_CONV_IN: {
5664 MonoType *intptr_type;
5665 int dar_release_slot, pos;
5667 intptr_type = &mono_defaults.int_class->byval_arg;
5668 conv_arg = mono_mb_add_local (mb, intptr_type);
5669 *conv_arg_type = intptr_type;
5671 if (!sh_dangerous_add_ref)
5672 init_safe_handle ();
5674 mono_mb_emit_ldarg (mb, argnum);
5675 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5676 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5678 mono_mb_patch_branch (mb, pos);
5681 * My tests in show that ref SafeHandles are not really
5682 * passed as ref objects. Instead a NULL is passed as the
5685 mono_mb_emit_icon (mb, 0);
5686 mono_mb_emit_stloc (mb, conv_arg);
5690 /* Create local to hold the ref parameter to DangerousAddRef */
5691 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5693 /* set release = false; */
5694 mono_mb_emit_icon (mb, 0);
5695 mono_mb_emit_stloc (mb, dar_release_slot);
5697 /* safehandle.DangerousAddRef (ref release) */
5698 mono_mb_emit_ldarg (mb, argnum);
5699 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5700 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5702 /* Pull the handle field from SafeHandle */
5703 mono_mb_emit_ldarg (mb, argnum);
5704 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5705 mono_mb_emit_byte (mb, CEE_LDIND_I);
5706 mono_mb_emit_stloc (mb, conv_arg);
5711 case MARSHAL_ACTION_PUSH:
5713 mono_mb_emit_ldloc_addr (mb, conv_arg);
5715 mono_mb_emit_ldloc (mb, conv_arg);
5718 case MARSHAL_ACTION_CONV_OUT: {
5719 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5720 int dar_release_slot = conv_arg + 1;
5723 if (!sh_dangerous_release)
5724 init_safe_handle ();
5730 * My tests indicate that ref SafeHandles parameters are not actually
5731 * passed by ref, but instead a new Handle is created regardless of
5732 * whether a change happens in the unmanaged side.
5734 * Also, the Handle is created before calling into unmanaged code,
5735 * but we do not support that mechanism (getting to the original
5736 * handle) and it makes no difference where we create this
5738 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5740 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5743 /* refval = new SafeHandleDerived ()*/
5744 mono_mb_emit_ldarg (mb, argnum);
5745 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5746 mono_mb_emit_byte (mb, CEE_STIND_REF);
5748 /* refval.handle = returned_handle */
5749 mono_mb_emit_ldarg (mb, argnum);
5750 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5751 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5752 mono_mb_emit_ldloc (mb, conv_arg);
5753 mono_mb_emit_byte (mb, CEE_STIND_I);
5755 mono_mb_emit_ldloc (mb, dar_release_slot);
5756 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5757 mono_mb_emit_ldarg (mb, argnum);
5758 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5759 mono_mb_patch_branch (mb, label_next);
5764 case MARSHAL_ACTION_CONV_RESULT: {
5765 MonoMethod *ctor = NULL;
5766 int intptr_handle_slot;
5768 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5769 mono_mb_emit_byte (mb, CEE_POP);
5770 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
5774 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5776 mono_mb_emit_byte (mb, CEE_POP);
5777 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5780 /* Store the IntPtr results into a local */
5781 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5782 mono_mb_emit_stloc (mb, intptr_handle_slot);
5784 /* Create return value */
5785 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5786 mono_mb_emit_stloc (mb, 3);
5788 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5789 mono_mb_emit_ldloc (mb, 3);
5790 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5791 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5792 mono_mb_emit_byte (mb, CEE_STIND_I);
5796 case MARSHAL_ACTION_MANAGED_CONV_IN:
5797 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5800 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5801 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5804 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5805 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5808 printf ("Unhandled case for MarshalAction: %d\n", action);
5815 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5816 MonoMarshalSpec *spec, int conv_arg,
5817 MonoType **conv_arg_type, MarshalAction action)
5819 MonoMethodBuilder *mb = m->mb;
5822 case MARSHAL_ACTION_CONV_IN: {
5823 MonoType *intptr_type;
5825 intptr_type = &mono_defaults.int_class->byval_arg;
5826 conv_arg = mono_mb_add_local (mb, intptr_type);
5827 *conv_arg_type = intptr_type;
5830 mono_mb_emit_exception_marshal_directive (mb,
5831 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5834 mono_mb_emit_ldarg_addr (mb, argnum);
5835 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
5836 mono_mb_emit_byte (mb, CEE_ADD);
5837 mono_mb_emit_byte (mb, CEE_LDIND_I);
5838 mono_mb_emit_stloc (mb, conv_arg);
5842 case MARSHAL_ACTION_PUSH:
5843 mono_mb_emit_ldloc (mb, conv_arg);
5846 case MARSHAL_ACTION_CONV_OUT: {
5847 /* no resource release required */
5851 case MARSHAL_ACTION_CONV_RESULT: {
5852 mono_mb_emit_exception_marshal_directive (mb,
5853 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5857 case MARSHAL_ACTION_MANAGED_CONV_IN:
5858 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5861 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5862 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5865 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5866 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5869 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5876 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5877 MonoMarshalSpec *spec,
5878 int conv_arg, MonoType **conv_arg_type,
5879 MarshalAction action)
5881 MonoMethodBuilder *mb = m->mb;
5882 MonoClass *klass = mono_class_from_mono_type (t);
5886 case MARSHAL_ACTION_CONV_IN:
5887 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5888 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5890 m->orig_conv_args [argnum] = 0;
5892 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5893 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5894 mono_mb_emit_exception_marshal_directive (mb, msg);
5898 if (klass->delegate) {
5900 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5901 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5902 mono_mb_emit_exception_marshal_directive (mb, msg);
5904 mono_mb_emit_byte (mb, CEE_LDNULL);
5905 mono_mb_emit_stloc (mb, conv_arg);
5907 mono_mb_emit_ldarg (mb, argnum);
5908 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5909 mono_mb_emit_stloc (mb, conv_arg);
5911 } else if (klass == mono_defaults.stringbuilder_class) {
5912 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5913 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5915 g_assert (!t->byref);
5916 mono_mb_emit_ldarg (mb, argnum);
5919 mono_mb_emit_icall (mb, conv_to_icall (conv));
5921 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5922 MonoException *exc = mono_get_exception_not_implemented (msg);
5925 mono_raise_exception (exc);
5928 mono_mb_emit_stloc (mb, conv_arg);
5929 } else if (klass->blittable) {
5930 mono_mb_emit_byte (mb, CEE_LDNULL);
5931 mono_mb_emit_stloc (mb, conv_arg);
5933 mono_mb_emit_ldarg (mb, argnum);
5934 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5936 mono_mb_emit_ldarg (mb, argnum);
5937 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5938 mono_mb_emit_stloc (mb, conv_arg);
5940 mono_mb_patch_branch (mb, pos);
5943 mono_mb_emit_byte (mb, CEE_LDNULL);
5944 mono_mb_emit_stloc (mb, conv_arg);
5947 /* we dont need any conversions for out parameters */
5948 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5951 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_byte (mb, CEE_LDIND_I);
5955 mono_mb_emit_ldarg (mb, argnum);
5956 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5957 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5960 /* store the address of the source into local variable 0 */
5961 mono_mb_emit_stloc (mb, 0);
5962 mono_mb_emit_ldloc (mb, 0);
5963 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5965 /* allocate space for the native struct and store the address */
5966 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5967 mono_mb_emit_byte (mb, CEE_PREFIX1);
5968 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5969 mono_mb_emit_stloc (mb, conv_arg);
5972 /* Need to store the original buffer so we can free it later */
5973 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5974 mono_mb_emit_ldloc (mb, conv_arg);
5975 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5978 /* set the src_ptr */
5979 mono_mb_emit_ldloc (mb, 0);
5980 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5981 mono_mb_emit_stloc (mb, 0);
5984 mono_mb_emit_ldloc (mb, conv_arg);
5985 mono_mb_emit_stloc (mb, 1);
5987 /* emit valuetype conversion code */
5988 emit_struct_conv (mb, klass, FALSE);
5990 mono_mb_patch_branch (mb, pos);
5994 case MARSHAL_ACTION_CONV_OUT:
5995 if (klass == mono_defaults.stringbuilder_class) {
5997 MonoMarshalNative encoding;
5998 MonoMarshalConv conv;
6000 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6001 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6003 g_assert (!t->byref);
6004 g_assert (encoding != -1);
6006 mono_mb_emit_ldarg (mb, argnum);
6007 mono_mb_emit_ldloc (mb, conv_arg);
6009 mono_mb_emit_icall (mb, conv_to_icall (conv));
6012 mono_mb_emit_ldloc (mb, conv_arg);
6013 mono_mb_emit_icall (mb, mono_marshal_free);
6018 if (klass->delegate) {
6020 mono_mb_emit_ldarg (mb, argnum);
6021 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6022 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6023 mono_mb_emit_ldloc (mb, conv_arg);
6024 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6025 mono_mb_emit_byte (mb, CEE_STIND_REF);
6030 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6031 /* allocate a new object */
6032 mono_mb_emit_ldarg (mb, argnum);
6033 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6034 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6035 mono_mb_emit_byte (mb, CEE_STIND_REF);
6038 /* dst = *argument */
6039 mono_mb_emit_ldarg (mb, argnum);
6042 mono_mb_emit_byte (mb, CEE_LDIND_I);
6044 mono_mb_emit_stloc (mb, 1);
6046 mono_mb_emit_ldloc (mb, 1);
6047 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6049 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6050 mono_mb_emit_ldloc (mb, 1);
6051 mono_mb_emit_icon (mb, sizeof (MonoObject));
6052 mono_mb_emit_byte (mb, CEE_ADD);
6053 mono_mb_emit_stloc (mb, 1);
6055 /* src = tmp_locals [i] */
6056 mono_mb_emit_ldloc (mb, conv_arg);
6057 mono_mb_emit_stloc (mb, 0);
6059 /* emit valuetype conversion code */
6060 emit_struct_conv (mb, klass, TRUE);
6062 /* Free the structure returned by the native code */
6063 emit_struct_free (mb, klass, conv_arg);
6065 if (m->orig_conv_args [argnum]) {
6067 * If the native function changed the pointer, then free
6068 * the original structure plus the new pointer.
6070 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6071 mono_mb_emit_ldloc (mb, conv_arg);
6072 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6074 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6075 g_assert (m->orig_conv_args [argnum]);
6077 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6080 mono_mb_emit_ldloc (mb, conv_arg);
6081 mono_mb_emit_icall (mb, g_free);
6083 mono_mb_patch_branch (mb, pos2);
6087 /* Free the original structure passed to native code */
6088 emit_struct_free (mb, klass, conv_arg);
6090 mono_mb_patch_branch (mb, pos);
6093 case MARSHAL_ACTION_PUSH:
6095 mono_mb_emit_ldloc_addr (mb, conv_arg);
6097 mono_mb_emit_ldloc (mb, conv_arg);
6100 case MARSHAL_ACTION_CONV_RESULT:
6101 if (klass->delegate) {
6102 g_assert (!t->byref);
6103 mono_mb_emit_stloc (mb, 0);
6104 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6105 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6106 mono_mb_emit_ldloc (mb, 0);
6107 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6108 mono_mb_emit_stloc (mb, 3);
6111 mono_mb_emit_stloc (mb, 0);
6113 /* Make a copy since emit_conv modifies local 0 */
6114 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6115 mono_mb_emit_ldloc (mb, 0);
6116 mono_mb_emit_stloc (mb, loc);
6118 mono_mb_emit_byte (mb, CEE_LDNULL);
6119 mono_mb_emit_stloc (mb, 3);
6121 mono_mb_emit_ldloc (mb, 0);
6122 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6124 /* allocate result object */
6126 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6127 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6128 mono_mb_emit_stloc (mb, 3);
6132 mono_mb_emit_ldloc (mb, 3);
6133 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6134 mono_mb_emit_stloc (mb, 1);
6136 /* emit conversion code */
6137 emit_struct_conv (mb, klass, TRUE);
6139 emit_struct_free (mb, klass, loc);
6141 /* Free the pointer allocated by unmanaged code */
6142 mono_mb_emit_ldloc (mb, loc);
6143 mono_mb_emit_icall (mb, g_free);
6144 mono_mb_patch_branch (mb, pos);
6148 case MARSHAL_ACTION_MANAGED_CONV_IN:
6149 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6151 if (klass->delegate) {
6152 g_assert (!t->byref);
6153 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6154 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6155 mono_mb_emit_ldarg (mb, argnum);
6156 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6157 mono_mb_emit_stloc (mb, conv_arg);
6161 if (klass == mono_defaults.stringbuilder_class) {
6162 MonoMarshalNative encoding;
6164 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6167 g_assert (encoding == MONO_NATIVE_LPSTR);
6169 g_assert (!t->byref);
6170 g_assert (encoding != -1);
6172 mono_mb_emit_ldarg (mb, argnum);
6173 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6174 mono_mb_emit_stloc (mb, conv_arg);
6178 /* The class can not have an automatic layout */
6179 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6180 mono_mb_emit_auto_layout_exception (mb, klass);
6184 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6185 mono_mb_emit_byte (mb, CEE_LDNULL);
6186 mono_mb_emit_stloc (mb, conv_arg);
6191 mono_mb_emit_ldarg (mb, argnum);
6195 /* Check for NULL and raise an exception */
6196 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6198 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6200 mono_mb_patch_branch (mb, pos2);
6201 mono_mb_emit_ldarg (mb, argnum);
6202 mono_mb_emit_byte (mb, CEE_LDIND_I);
6205 mono_mb_emit_stloc (mb, 0);
6207 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6208 mono_mb_emit_stloc (mb, conv_arg);
6210 mono_mb_emit_ldloc (mb, 0);
6211 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6213 /* Create and set dst */
6214 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6215 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6216 mono_mb_emit_stloc (mb, conv_arg);
6217 mono_mb_emit_ldloc (mb, conv_arg);
6218 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6219 mono_mb_emit_stloc (mb, 1);
6221 /* emit valuetype conversion code */
6222 emit_struct_conv (mb, klass, TRUE);
6224 mono_mb_patch_branch (mb, pos);
6227 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6229 /* Check for null */
6230 mono_mb_emit_ldloc (mb, conv_arg);
6231 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6232 mono_mb_emit_ldarg (mb, argnum);
6233 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6234 mono_mb_emit_byte (mb, CEE_STIND_REF);
6235 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6237 mono_mb_patch_branch (mb, pos);
6240 mono_mb_emit_ldloc (mb, conv_arg);
6241 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6242 mono_mb_emit_stloc (mb, 0);
6244 /* Allocate and set dest */
6245 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6246 mono_mb_emit_byte (mb, CEE_CONV_I);
6247 mono_mb_emit_icall (mb, mono_marshal_alloc);
6248 mono_mb_emit_stloc (mb, 1);
6250 /* Update argument pointer */
6251 mono_mb_emit_ldarg (mb, argnum);
6252 mono_mb_emit_ldloc (mb, 1);
6253 mono_mb_emit_byte (mb, CEE_STIND_I);
6255 /* emit valuetype conversion code */
6256 emit_struct_conv (mb, klass, FALSE);
6258 mono_mb_patch_branch (mb, pos2);
6260 /* byval [Out] marshalling */
6262 /* FIXME: Handle null */
6265 mono_mb_emit_ldloc (mb, conv_arg);
6266 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6267 mono_mb_emit_stloc (mb, 0);
6270 mono_mb_emit_ldarg (mb, argnum);
6271 mono_mb_emit_stloc (mb, 1);
6273 /* emit valuetype conversion code */
6274 emit_struct_conv (mb, klass, FALSE);
6278 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6279 if (klass->delegate) {
6280 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6281 mono_mb_emit_stloc (mb, 3);
6285 /* The class can not have an automatic layout */
6286 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6287 mono_mb_emit_auto_layout_exception (mb, klass);
6291 mono_mb_emit_stloc (mb, 0);
6292 /* Check for null */
6293 mono_mb_emit_ldloc (mb, 0);
6294 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6295 mono_mb_emit_byte (mb, CEE_LDNULL);
6296 mono_mb_emit_stloc (mb, 3);
6297 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6299 mono_mb_patch_branch (mb, pos);
6302 mono_mb_emit_ldloc (mb, 0);
6303 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6304 mono_mb_emit_stloc (mb, 0);
6306 /* Allocate and set dest */
6307 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6308 mono_mb_emit_byte (mb, CEE_CONV_I);
6309 mono_mb_emit_icall (mb, mono_marshal_alloc);
6310 mono_mb_emit_byte (mb, CEE_DUP);
6311 mono_mb_emit_stloc (mb, 1);
6312 mono_mb_emit_stloc (mb, 3);
6314 emit_struct_conv (mb, klass, FALSE);
6316 mono_mb_patch_branch (mb, pos2);
6320 g_assert_not_reached ();
6327 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6328 MonoMarshalSpec *spec,
6329 int conv_arg, MonoType **conv_arg_type,
6330 MarshalAction action)
6332 MonoMethodBuilder *mb = m->mb;
6333 static MonoMethod *get_object_for_native_variant = NULL;
6334 static MonoMethod *get_native_variant_for_object = NULL;
6336 mono_init_com_types ();
6338 if (!get_object_for_native_variant)
6339 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6340 g_assert (get_object_for_native_variant);
6342 if (!get_native_variant_for_object)
6343 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6344 g_assert (get_native_variant_for_object);
6347 case MARSHAL_ACTION_CONV_IN: {
6348 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6351 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6353 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6355 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6358 mono_mb_emit_ldarg (mb, argnum);
6360 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6361 mono_mb_emit_ldloc_addr (mb, conv_arg);
6362 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6366 case MARSHAL_ACTION_CONV_OUT: {
6367 static MonoMethod *variant_clear = NULL;
6370 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6371 g_assert (variant_clear);
6374 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6375 mono_mb_emit_ldarg (mb, argnum);
6376 mono_mb_emit_ldloc_addr (mb, conv_arg);
6377 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6378 mono_mb_emit_byte (mb, CEE_STIND_REF);
6381 mono_mb_emit_ldloc_addr (mb, conv_arg);
6382 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6386 case MARSHAL_ACTION_PUSH:
6388 mono_mb_emit_ldloc_addr (mb, conv_arg);
6390 mono_mb_emit_ldloc (mb, conv_arg);
6393 case MARSHAL_ACTION_CONV_RESULT: {
6394 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6395 mono_mb_emit_exception_marshal_directive (mb, msg);
6399 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6400 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6403 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6405 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6407 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6411 mono_mb_emit_ldarg (mb, argnum);
6413 mono_mb_emit_ldarg_addr (mb, argnum);
6414 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6415 mono_mb_emit_stloc (mb, conv_arg);
6419 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6420 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6421 mono_mb_emit_ldloc (mb, conv_arg);
6422 mono_mb_emit_ldarg (mb, argnum);
6423 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6428 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6429 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6430 mono_mb_emit_exception_marshal_directive (mb, msg);
6435 g_assert_not_reached ();
6442 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6443 MonoMarshalSpec *spec,
6444 int conv_arg, MonoType **conv_arg_type,
6445 MarshalAction action)
6447 MonoMethodBuilder *mb = m->mb;
6448 MonoClass *klass = mono_class_from_mono_type (t);
6449 gboolean need_convert, need_free;
6450 MonoMarshalNative encoding;
6452 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6455 case MARSHAL_ACTION_CONV_IN:
6456 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6457 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6459 if (klass->element_class->blittable) {
6460 mono_mb_emit_ldarg (mb, argnum);
6462 mono_mb_emit_byte (mb, CEE_LDIND_I);
6463 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6464 mono_mb_emit_stloc (mb, conv_arg);
6467 guint32 label1, label2, label3;
6468 int index_var, src_var, dest_ptr, esize;
6469 MonoMarshalConv conv;
6470 gboolean is_string = FALSE;
6472 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6474 eklass = klass->element_class;
6476 if (eklass == mono_defaults.string_class) {
6478 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6480 else if (eklass == mono_defaults.stringbuilder_class) {
6482 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6487 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6488 mono_mb_emit_ldarg (mb, argnum);
6490 mono_mb_emit_byte (mb, CEE_LDIND_I);
6491 mono_mb_emit_stloc (mb, src_var);
6494 mono_mb_emit_ldloc (mb, src_var);
6495 mono_mb_emit_stloc (mb, conv_arg);
6496 mono_mb_emit_ldloc (mb, src_var);
6497 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6501 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6502 MonoException *exc = mono_get_exception_not_implemented (msg);
6505 mono_raise_exception (exc);
6510 esize = sizeof (gpointer);
6512 esize = mono_class_native_size (eklass, NULL);
6514 /* allocate space for the native struct and store the address */
6515 mono_mb_emit_icon (mb, esize);
6516 mono_mb_emit_ldloc (mb, src_var);
6517 mono_mb_emit_byte (mb, CEE_LDLEN);
6519 if (eklass == mono_defaults.string_class) {
6520 /* Make the array bigger for the terminating null */
6521 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6522 mono_mb_emit_byte (mb, CEE_ADD);
6524 mono_mb_emit_byte (mb, CEE_MUL);
6525 mono_mb_emit_byte (mb, CEE_PREFIX1);
6526 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6527 mono_mb_emit_stloc (mb, conv_arg);
6529 mono_mb_emit_ldloc (mb, conv_arg);
6530 mono_mb_emit_stloc (mb, dest_ptr);
6532 /* Emit marshalling loop */
6533 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6534 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6535 mono_mb_emit_stloc (mb, index_var);
6536 label2 = mono_mb_get_label (mb);
6537 mono_mb_emit_ldloc (mb, index_var);
6538 mono_mb_emit_ldloc (mb, src_var);
6539 mono_mb_emit_byte (mb, CEE_LDLEN);
6540 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6542 /* Emit marshalling code */
6545 mono_mb_emit_ldloc (mb, dest_ptr);
6546 mono_mb_emit_ldloc (mb, src_var);
6547 mono_mb_emit_ldloc (mb, index_var);
6548 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6549 mono_mb_emit_icall (mb, conv_to_icall (conv));
6550 mono_mb_emit_byte (mb, CEE_STIND_I);
6552 /* set the src_ptr */
6553 mono_mb_emit_ldloc (mb, src_var);
6554 mono_mb_emit_ldloc (mb, index_var);
6555 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6556 mono_mb_emit_stloc (mb, 0);
6559 mono_mb_emit_ldloc (mb, dest_ptr);
6560 mono_mb_emit_stloc (mb, 1);
6562 /* emit valuetype conversion code */
6563 emit_struct_conv (mb, eklass, FALSE);
6566 mono_mb_emit_add_to_local (mb, index_var, 1);
6567 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6569 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6571 mono_mb_patch_branch (mb, label3);
6573 if (eklass == mono_defaults.string_class) {
6574 /* Null terminate */
6575 mono_mb_emit_ldloc (mb, dest_ptr);
6576 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6577 mono_mb_emit_byte (mb, CEE_STIND_REF);
6580 mono_mb_patch_branch (mb, label1);
6585 case MARSHAL_ACTION_CONV_OUT:
6586 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6587 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);
6588 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6591 if (need_convert || need_free) {
6592 /* FIXME: Optimize blittable case */
6594 guint32 label1, label2, label3;
6595 int index_var, src_ptr, loc, esize;
6597 eklass = klass->element_class;
6598 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6599 esize = sizeof (gpointer);
6601 esize = mono_class_native_size (eklass, NULL);
6602 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6603 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6606 mono_mb_emit_ldarg (mb, argnum);
6608 mono_mb_emit_byte (mb, CEE_LDIND_I);
6609 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6611 mono_mb_emit_ldloc (mb, conv_arg);
6612 mono_mb_emit_stloc (mb, src_ptr);
6614 /* Emit marshalling loop */
6615 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6616 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6617 mono_mb_emit_stloc (mb, index_var);
6618 label2 = mono_mb_get_label (mb);
6619 mono_mb_emit_ldloc (mb, index_var);
6620 mono_mb_emit_ldarg (mb, argnum);
6622 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6623 mono_mb_emit_byte (mb, CEE_LDLEN);
6624 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6626 /* Emit marshalling code */
6628 if (eklass == mono_defaults.stringbuilder_class) {
6629 gboolean need_free2;
6630 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6632 g_assert (conv != -1);
6635 mono_mb_emit_ldarg (mb, argnum);
6637 mono_mb_emit_byte (mb, CEE_LDIND_I);
6638 mono_mb_emit_ldloc (mb, index_var);
6639 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6642 mono_mb_emit_ldloc (mb, src_ptr);
6643 mono_mb_emit_byte (mb, CEE_LDIND_I);
6645 mono_mb_emit_icall (mb, conv_to_icall (conv));
6649 mono_mb_emit_ldloc (mb, src_ptr);
6650 mono_mb_emit_byte (mb, CEE_LDIND_I);
6652 mono_mb_emit_icall (mb, mono_marshal_free);
6655 else if (eklass == mono_defaults.string_class) {
6658 mono_mb_emit_ldloc (mb, src_ptr);
6659 mono_mb_emit_byte (mb, CEE_LDIND_I);
6661 mono_mb_emit_icall (mb, mono_marshal_free);
6666 /* set the src_ptr */
6667 mono_mb_emit_ldloc (mb, src_ptr);
6668 mono_mb_emit_stloc (mb, 0);
6671 mono_mb_emit_ldarg (mb, argnum);
6673 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6674 mono_mb_emit_ldloc (mb, index_var);
6675 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6676 mono_mb_emit_stloc (mb, 1);
6678 /* emit valuetype conversion code */
6679 emit_struct_conv (mb, eklass, TRUE);
6683 mono_mb_emit_ldloc (mb, src_ptr);
6684 mono_mb_emit_stloc (mb, loc);
6685 mono_mb_emit_ldloc (mb, loc);
6687 emit_struct_free (mb, eklass, loc);
6691 mono_mb_emit_add_to_local (mb, index_var, 1);
6692 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6694 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6696 mono_mb_patch_branch (mb, label1);
6697 mono_mb_patch_branch (mb, label3);
6701 case MARSHAL_ACTION_PUSH:
6703 mono_mb_emit_ldloc_addr (mb, conv_arg);
6705 mono_mb_emit_ldloc (mb, conv_arg);
6708 case MARSHAL_ACTION_CONV_RESULT:
6709 /* fixme: we need conversions here */
6710 mono_mb_emit_stloc (mb, 3);
6713 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6715 guint32 label1, label2, label3;
6716 int index_var, src_ptr, loc, esize, param_num, num_elem;
6717 MonoMarshalConv conv;
6718 gboolean is_string = FALSE;
6720 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6721 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6724 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6725 mono_mb_emit_exception_marshal_directive (mb, msg);
6729 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6730 mono_mb_emit_exception_marshal_directive (mb, msg);
6733 if (spec->native != MONO_NATIVE_LPARRAY) {
6734 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6735 mono_mb_emit_exception_marshal_directive (mb, msg);
6739 /* FIXME: t is from the method which is wrapped, not the delegate type */
6740 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6742 param_num = spec->data.array_data.param_num;
6743 num_elem = spec->data.array_data.num_elem;
6744 if (spec->data.array_data.elem_mult == 0)
6745 /* param_num is not specified */
6748 if (param_num == -1) {
6749 if (num_elem <= 0) {
6750 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6751 mono_mb_emit_exception_marshal_directive (mb, msg);
6756 /* FIXME: Optimize blittable case */
6758 eklass = klass->element_class;
6759 if (eklass == mono_defaults.string_class) {
6761 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6763 else if (eklass == mono_defaults.stringbuilder_class) {
6765 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6770 mono_marshal_load_type_info (eklass);
6773 esize = sizeof (gpointer);
6775 esize = mono_class_native_size (eklass, NULL);
6776 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6777 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6779 mono_mb_emit_byte (mb, CEE_LDNULL);
6780 mono_mb_emit_stloc (mb, conv_arg);
6782 /* Check param index */
6783 if (param_num != -1) {
6784 if (param_num >= m->sig->param_count) {
6785 char *msg = g_strdup ("Array size control parameter index is out of range.");
6786 mono_mb_emit_exception_marshal_directive (mb, msg);
6789 switch (m->sig->params [param_num]->type) {
6802 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6803 mono_mb_emit_exception_marshal_directive (mb, msg);
6810 mono_mb_emit_ldarg (mb, argnum);
6811 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6813 mono_mb_emit_ldarg (mb, argnum);
6814 mono_mb_emit_stloc (mb, src_ptr);
6816 /* Create managed array */
6818 * The LPArray marshalling spec says that sometimes param_num starts
6819 * from 1, sometimes it starts from 0. But MS seems to allways start
6823 if (param_num == -1)
6824 mono_mb_emit_icon (mb, num_elem);
6826 /* FIXME: Add the two together */
6827 mono_mb_emit_ldarg (mb, param_num);
6829 mono_mb_emit_icon (mb, num_elem);
6830 mono_mb_emit_byte (mb, CEE_ADD);
6834 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6835 mono_mb_emit_stloc (mb, conv_arg);
6837 if (eklass->blittable) {
6838 mono_mb_emit_ldloc (mb, conv_arg);
6839 mono_mb_emit_byte (mb, CEE_CONV_I);
6840 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6841 mono_mb_emit_byte (mb, CEE_ADD);
6842 mono_mb_emit_ldarg (mb, argnum);
6843 mono_mb_emit_ldloc (mb, conv_arg);
6844 mono_mb_emit_byte (mb, CEE_LDLEN);
6845 mono_mb_emit_icon (mb, esize);
6846 mono_mb_emit_byte (mb, CEE_MUL);
6847 mono_mb_emit_byte (mb, CEE_PREFIX1);
6848 mono_mb_emit_byte (mb, CEE_CPBLK);
6852 /* Emit marshalling loop */
6853 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6854 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6855 mono_mb_emit_stloc (mb, index_var);
6856 label2 = mono_mb_get_label (mb);
6857 mono_mb_emit_ldloc (mb, index_var);
6858 mono_mb_emit_ldloc (mb, conv_arg);
6859 mono_mb_emit_byte (mb, CEE_LDLEN);
6860 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6862 /* Emit marshalling code */
6864 g_assert (conv != -1);
6866 mono_mb_emit_ldloc (mb, conv_arg);
6867 mono_mb_emit_ldloc (mb, index_var);
6869 mono_mb_emit_ldloc (mb, src_ptr);
6870 mono_mb_emit_byte (mb, CEE_LDIND_I);
6872 mono_mb_emit_icall (mb, conv_to_icall (conv));
6873 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6876 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6877 mono_mb_emit_exception_marshal_directive (mb, msg);
6881 mono_mb_emit_add_to_local (mb, index_var, 1);
6882 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6884 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6886 mono_mb_patch_branch (mb, label1);
6887 mono_mb_patch_branch (mb, label3);
6891 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6893 guint32 label1, label2, label3;
6894 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6895 MonoMarshalConv conv;
6896 gboolean is_string = FALSE;
6899 /* Already handled in CONV_IN */
6902 /* These are already checked in CONV_IN */
6903 g_assert (!t->byref);
6904 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6905 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6907 param_num = spec->data.array_data.param_num;
6908 num_elem = spec->data.array_data.num_elem;
6910 if (spec->data.array_data.elem_mult == 0)
6911 /* param_num is not specified */
6914 if (param_num == -1) {
6915 if (num_elem <= 0) {
6916 g_assert_not_reached ();
6920 /* FIXME: Optimize blittable case */
6922 eklass = klass->element_class;
6923 if (eklass == mono_defaults.string_class) {
6925 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6927 else if (eklass == mono_defaults.stringbuilder_class) {
6929 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6934 mono_marshal_load_type_info (eklass);
6937 esize = sizeof (gpointer);
6939 esize = mono_class_native_size (eklass, NULL);
6941 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6942 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6945 mono_mb_emit_ldloc (mb, conv_arg);
6946 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6948 mono_mb_emit_ldarg (mb, argnum);
6949 mono_mb_emit_stloc (mb, dest_ptr);
6951 if (eklass->blittable) {
6953 mono_mb_emit_ldarg (mb, argnum);
6955 mono_mb_emit_ldloc (mb, conv_arg);
6956 mono_mb_emit_byte (mb, CEE_CONV_I);
6957 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6958 mono_mb_emit_byte (mb, CEE_ADD);
6960 mono_mb_emit_ldloc (mb, conv_arg);
6961 mono_mb_emit_byte (mb, CEE_LDLEN);
6962 mono_mb_emit_icon (mb, esize);
6963 mono_mb_emit_byte (mb, CEE_MUL);
6964 mono_mb_emit_byte (mb, CEE_PREFIX1);
6965 mono_mb_emit_byte (mb, CEE_CPBLK);
6969 /* Emit marshalling loop */
6970 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6971 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6972 mono_mb_emit_stloc (mb, index_var);
6973 label2 = mono_mb_get_label (mb);
6974 mono_mb_emit_ldloc (mb, index_var);
6975 mono_mb_emit_ldloc (mb, conv_arg);
6976 mono_mb_emit_byte (mb, CEE_LDLEN);
6977 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6979 /* Emit marshalling code */
6981 g_assert (conv != -1);
6984 mono_mb_emit_ldloc (mb, dest_ptr);
6987 mono_mb_emit_ldloc (mb, conv_arg);
6988 mono_mb_emit_ldloc (mb, index_var);
6990 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6992 mono_mb_emit_icall (mb, conv_to_icall (conv));
6993 mono_mb_emit_byte (mb, CEE_STIND_I);
6996 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6997 mono_mb_emit_exception_marshal_directive (mb, msg);
7001 mono_mb_emit_add_to_local (mb, index_var, 1);
7002 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7004 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7006 mono_mb_patch_branch (mb, label1);
7007 mono_mb_patch_branch (mb, label3);
7011 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7013 guint32 label1, label2, label3;
7014 int index_var, src, dest, esize;
7015 MonoMarshalConv conv = -1;
7016 gboolean is_string = FALSE;
7018 g_assert (!t->byref);
7020 eklass = klass->element_class;
7022 mono_marshal_load_type_info (eklass);
7024 if (eklass == mono_defaults.string_class) {
7026 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7029 g_assert_not_reached ();
7033 esize = sizeof (gpointer);
7035 esize = mono_class_native_size (eklass, NULL);
7037 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7038 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7040 mono_mb_emit_stloc (mb, src);
7041 mono_mb_emit_ldloc (mb, src);
7042 mono_mb_emit_stloc (mb, 3);
7044 /* Check for null */
7045 mono_mb_emit_ldloc (mb, src);
7046 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7048 /* Allocate native array */
7049 mono_mb_emit_icon (mb, esize);
7050 mono_mb_emit_ldloc (mb, src);
7051 mono_mb_emit_byte (mb, CEE_LDLEN);
7053 if (eklass == mono_defaults.string_class) {
7054 /* Make the array bigger for the terminating null */
7055 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7056 mono_mb_emit_byte (mb, CEE_ADD);
7058 mono_mb_emit_byte (mb, CEE_MUL);
7059 mono_mb_emit_icall (mb, mono_marshal_alloc);
7060 mono_mb_emit_stloc (mb, dest);
7061 mono_mb_emit_ldloc (mb, dest);
7062 mono_mb_emit_stloc (mb, 3);
7064 /* Emit marshalling loop */
7065 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7066 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7067 mono_mb_emit_stloc (mb, index_var);
7068 label2 = mono_mb_get_label (mb);
7069 mono_mb_emit_ldloc (mb, index_var);
7070 mono_mb_emit_ldloc (mb, src);
7071 mono_mb_emit_byte (mb, CEE_LDLEN);
7072 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7074 /* Emit marshalling code */
7076 g_assert (conv != -1);
7079 mono_mb_emit_ldloc (mb, dest);
7082 mono_mb_emit_ldloc (mb, src);
7083 mono_mb_emit_ldloc (mb, index_var);
7085 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7087 mono_mb_emit_icall (mb, conv_to_icall (conv));
7088 mono_mb_emit_byte (mb, CEE_STIND_I);
7091 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7092 mono_mb_emit_exception_marshal_directive (mb, msg);
7096 mono_mb_emit_add_to_local (mb, index_var, 1);
7097 mono_mb_emit_add_to_local (mb, dest, esize);
7099 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7101 mono_mb_patch_branch (mb, label3);
7102 mono_mb_patch_branch (mb, label1);
7106 g_assert_not_reached ();
7113 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7114 MonoMarshalSpec *spec,
7115 int conv_arg, MonoType **conv_arg_type,
7116 MarshalAction action)
7118 MonoMethodBuilder *mb = m->mb;
7121 case MARSHAL_ACTION_CONV_IN: {
7122 MonoType *local_type;
7124 guint8 ldc_op = CEE_LDC_I4_1;
7127 local_type = &mono_defaults.int32_class->byval_arg;
7129 switch (spec->native) {
7130 case MONO_NATIVE_I1:
7131 case MONO_NATIVE_U1:
7132 local_type = &mono_defaults.byte_class->byval_arg;
7134 case MONO_NATIVE_VARIANTBOOL:
7135 local_type = &mono_defaults.int16_class->byval_arg;
7136 ldc_op = CEE_LDC_I4_M1;
7138 case MONO_NATIVE_BOOLEAN:
7139 local_type = &mono_defaults.int32_class->byval_arg;
7142 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7143 local_type = &mono_defaults.int32_class->byval_arg;
7148 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7150 *conv_arg_type = local_type;
7151 conv_arg = mono_mb_add_local (mb, local_type);
7153 mono_mb_emit_ldarg (mb, argnum);
7155 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7156 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7157 mono_mb_emit_byte (mb, ldc_op);
7158 mono_mb_emit_stloc (mb, conv_arg);
7159 mono_mb_patch_branch (mb, label_false);
7164 case MARSHAL_ACTION_CONV_OUT:
7166 int label_false, label_end;
7170 mono_mb_emit_ldarg (mb, argnum);
7171 mono_mb_emit_ldloc (mb, conv_arg);
7173 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7174 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7176 label_end = mono_mb_emit_branch (mb, CEE_BR);
7177 mono_mb_patch_branch (mb, label_false);
7178 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7179 mono_mb_patch_branch (mb, label_end);
7181 mono_mb_emit_byte (mb, CEE_STIND_I1);
7185 case MARSHAL_ACTION_PUSH:
7187 mono_mb_emit_ldloc_addr (mb, conv_arg);
7189 mono_mb_emit_ldloc (mb, conv_arg);
7191 mono_mb_emit_ldarg (mb, argnum);
7194 case MARSHAL_ACTION_CONV_RESULT:
7195 /* maybe we need to make sure that it fits within 8 bits */
7196 mono_mb_emit_stloc (mb, 3);
7199 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7200 MonoClass* conv_arg_class = mono_defaults.int32_class;
7201 guint8 ldop = CEE_LDIND_I4;
7202 int label_null, label_false;
7204 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7207 switch (spec->native) {
7208 case MONO_NATIVE_I1:
7209 case MONO_NATIVE_U1:
7210 conv_arg_class = mono_defaults.byte_class;
7211 ldop = CEE_LDIND_I1;
7213 case MONO_NATIVE_VARIANTBOOL:
7214 conv_arg_class = mono_defaults.int16_class;
7215 ldop = CEE_LDIND_I2;
7217 case MONO_NATIVE_BOOLEAN:
7220 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7225 *conv_arg_type = &conv_arg_class->this_arg;
7227 *conv_arg_type = &conv_arg_class->byval_arg;
7230 mono_mb_emit_ldarg (mb, argnum);
7235 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7236 mono_mb_emit_ldarg (mb, argnum);
7237 mono_mb_emit_byte (mb, ldop);
7240 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7241 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7242 mono_mb_emit_stloc (mb, conv_arg);
7243 mono_mb_patch_branch (mb, label_false);
7246 mono_mb_patch_branch (mb, label_null);
7250 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7251 guint8 stop = CEE_STIND_I4;
7252 guint8 ldc_op = CEE_LDC_I4_1;
7253 int label_null,label_false, label_end;;
7258 switch (spec->native) {
7259 case MONO_NATIVE_I1:
7260 case MONO_NATIVE_U1:
7261 stop = CEE_STIND_I1;
7263 case MONO_NATIVE_VARIANTBOOL:
7264 stop = CEE_STIND_I2;
7265 ldc_op = CEE_LDC_I4_M1;
7273 mono_mb_emit_ldarg (mb, argnum);
7274 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7276 mono_mb_emit_ldarg (mb, argnum);
7277 mono_mb_emit_ldloc (mb, conv_arg);
7279 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7280 mono_mb_emit_byte (mb, ldc_op);
7281 label_end = mono_mb_emit_branch (mb, CEE_BR);
7283 mono_mb_patch_branch (mb, label_false);
7284 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7285 mono_mb_patch_branch (mb, label_end);
7287 mono_mb_emit_byte (mb, stop);
7288 mono_mb_patch_branch (mb, label_null);
7293 g_assert_not_reached ();
7300 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7301 MonoMarshalSpec *spec, int conv_arg,
7302 MonoType **conv_arg_type, MarshalAction action)
7304 MonoMethodBuilder *mb = m->mb;
7307 case MARSHAL_ACTION_CONV_IN:
7308 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7309 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7310 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7314 case MARSHAL_ACTION_PUSH:
7315 mono_mb_emit_ldarg (mb, argnum);
7318 case MARSHAL_ACTION_CONV_RESULT:
7319 /* no conversions necessary */
7320 mono_mb_emit_stloc (mb, 3);
7331 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7332 MonoMarshalSpec *spec, int conv_arg,
7333 MonoType **conv_arg_type, MarshalAction action)
7335 MonoMethodBuilder *mb = m->mb;
7338 case MARSHAL_ACTION_PUSH:
7339 /* fixme: dont know how to marshal that. We cant simply
7340 * convert it to a one byte UTF8 character, because an
7341 * unicode character may need more that one byte in UTF8 */
7342 mono_mb_emit_ldarg (mb, argnum);
7345 case MARSHAL_ACTION_CONV_RESULT:
7346 /* fixme: we need conversions here */
7347 mono_mb_emit_stloc (mb, 3);
7358 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7359 MonoMarshalSpec *spec, int conv_arg,
7360 MonoType **conv_arg_type, MarshalAction action)
7362 MonoMethodBuilder *mb = m->mb;
7365 case MARSHAL_ACTION_PUSH:
7366 mono_mb_emit_ldarg (mb, argnum);
7369 case MARSHAL_ACTION_CONV_RESULT:
7370 /* no conversions necessary */
7371 mono_mb_emit_stloc (mb, 3);
7382 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7383 MonoMarshalSpec *spec, int conv_arg,
7384 MonoType **conv_arg_type, MarshalAction action)
7386 /* Ensure that we have marshalling info for this param */
7387 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7389 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7390 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7392 if (spec && spec->native == MONO_NATIVE_ASANY)
7393 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7396 case MONO_TYPE_VALUETYPE:
7397 if (t->data.klass == mono_defaults.handleref_class)
7398 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7400 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7401 case MONO_TYPE_STRING:
7402 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7403 case MONO_TYPE_CLASS:
7404 case MONO_TYPE_OBJECT:
7405 if (spec && spec->native == MONO_NATIVE_STRUCT)
7406 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7409 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7410 spec->native == MONO_NATIVE_IDISPATCH ||
7411 spec->native == MONO_NATIVE_INTERFACE))
7412 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7415 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7416 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7417 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7419 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7420 case MONO_TYPE_ARRAY:
7421 case MONO_TYPE_SZARRAY:
7422 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7423 case MONO_TYPE_BOOLEAN:
7424 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7426 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7427 case MONO_TYPE_CHAR:
7428 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7441 case MONO_TYPE_FNPTR:
7442 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7443 case MONO_TYPE_GENERICINST:
7444 if (mono_type_generic_inst_is_valuetype (t))
7445 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7447 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7454 * mono_marshal_emit_native_wrapper:
7455 * @image: the image to use for looking up custom marshallers
7456 * @sig: The signature of the native function
7457 * @piinfo: Marshalling information
7458 * @mspecs: Marshalling information
7459 * @aot: whenever the created method will be compiled by the AOT compiler
7460 * @method: if non-NULL, the pinvoke method to call
7461 * @check_exceptions: Whenever to check for pending exceptions after the native call
7463 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7466 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7468 EmitMarshalContext m;
7469 MonoMethodSignature *csig;
7471 int i, argnum, *tmp_locals;
7473 static MonoMethodSignature *get_last_error_sig = NULL;
7478 /* we copy the signature, so that we can set pinvoke to 0 */
7479 csig = signature_dup (mb->method->klass->image, sig);
7484 /* we allocate local for use with emit_struct_conv() */
7485 /* allocate local 0 (pointer) src_ptr */
7486 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7487 /* allocate local 1 (pointer) dst_ptr */
7488 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7489 /* allocate local 2 (boolean) delete_old */
7490 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7492 /* delete_old = FALSE */
7493 mono_mb_emit_icon (mb, 0);
7494 mono_mb_emit_stloc (mb, 2);
7496 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7497 /* allocate local 3 to store the return value */
7498 mono_mb_add_local (mb, sig->ret);
7501 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7502 /* Return type custom marshaling */
7504 * Since we can't determine the return type of the unmanaged function,
7505 * we assume it returns a pointer, and pass that pointer to
7506 * MarshalNativeToManaged.
7508 csig->ret = &mono_defaults.int_class->byval_arg;
7511 /* we first do all conversions */
7512 tmp_locals = alloca (sizeof (int) * sig->param_count);
7513 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7515 for (i = 0; i < sig->param_count; i ++) {
7516 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7519 /* push all arguments */
7522 mono_mb_emit_byte (mb, CEE_LDARG_0);
7524 for (i = 0; i < sig->param_count; i++) {
7525 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7528 /* call the native method */
7529 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7531 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7533 g_assert_not_reached ();
7538 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7539 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7540 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7541 mono_mb_emit_calli (mb, csig);
7543 mono_mb_emit_native_call (mb, csig, func);
7547 /* Set LastError if needed */
7548 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7549 if (!get_last_error_sig) {
7550 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7551 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7552 get_last_error_sig->pinvoke = 1;
7555 #ifdef PLATFORM_WIN32
7557 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7558 * clobber its value.
7560 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7561 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7563 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7567 /* convert the result */
7568 if (!sig->ret->byref) {
7569 MonoMarshalSpec *spec = mspecs [0];
7570 type = sig->ret->type;
7572 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7573 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7578 case MONO_TYPE_VOID:
7580 case MONO_TYPE_VALUETYPE:
7581 klass = sig->ret->data.klass;
7582 if (klass->enumtype) {
7583 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7586 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7600 case MONO_TYPE_FNPTR:
7601 case MONO_TYPE_STRING:
7602 case MONO_TYPE_CLASS:
7603 case MONO_TYPE_OBJECT:
7604 case MONO_TYPE_BOOLEAN:
7605 case MONO_TYPE_ARRAY:
7606 case MONO_TYPE_SZARRAY:
7607 case MONO_TYPE_CHAR:
7609 case MONO_TYPE_GENERICINST:
7610 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7612 case MONO_TYPE_TYPEDBYREF:
7614 g_warning ("return type 0x%02x unknown", sig->ret->type);
7615 g_assert_not_reached ();
7619 mono_mb_emit_stloc (mb, 3);
7623 * Need to call this after converting the result since MONO_VTADDR needs
7624 * to be adjacent to the call instruction.
7626 if (check_exceptions)
7627 emit_thread_interrupt_checkpoint (mb);
7629 /* we need to convert byref arguments back and free string arrays */
7630 for (i = 0; i < sig->param_count; i++) {
7631 MonoType *t = sig->params [i];
7632 MonoMarshalSpec *spec = mspecs [i + 1];
7634 argnum = i + sig->hasthis;
7636 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7637 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7642 case MONO_TYPE_STRING:
7643 case MONO_TYPE_VALUETYPE:
7644 case MONO_TYPE_CLASS:
7645 case MONO_TYPE_OBJECT:
7646 case MONO_TYPE_SZARRAY:
7647 case MONO_TYPE_BOOLEAN:
7648 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7653 if (!MONO_TYPE_IS_VOID(sig->ret))
7654 mono_mb_emit_ldloc (mb, 3);
7656 mono_mb_emit_byte (mb, CEE_RET);
7660 * mono_marshal_get_native_wrapper:
7661 * @method: The MonoMethod to wrap.
7662 * @check_exceptions: Whenever to check for pending exceptions
7664 * generates IL code for the pinvoke wrapper (the generated method
7665 * calls the unmanaged code in piinfo->addr)
7668 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7670 MonoMethodSignature *sig, *csig;
7671 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7672 MonoMethodBuilder *mb;
7673 MonoMarshalSpec **mspecs;
7676 gboolean pinvoke = FALSE;
7679 const char *exc_class = "MissingMethodException";
7680 const char *exc_arg = NULL;
7682 g_assert (method != NULL);
7683 g_assert (mono_method_signature (method)->pinvoke);
7686 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7688 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7689 if ((res = mono_marshal_find_in_cache (cache, method)))
7692 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7694 return mono_cominterop_get_native_wrapper (method);
7696 g_assert_not_reached ();
7700 sig = mono_method_signature (method);
7702 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7703 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7706 if (!piinfo->addr) {
7708 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7709 exc_arg = "Method contains unsupported native code";
7711 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7713 piinfo->addr = mono_lookup_internal_call (method);
7716 /* hack - redirect certain string constructors to CreateString */
7717 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7718 g_assert (!pinvoke);
7719 g_assert (method->string_ctor);
7720 g_assert (sig->hasthis);
7722 /* CreateString returns a value */
7723 csig = signature_dup (method->klass->image, sig);
7724 csig->ret = &mono_defaults.string_class->byval_arg;
7728 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7729 if (!strcmp ("CreateString", res->name) &&
7730 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7732 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7733 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7735 /* create a wrapper to preserve .ctor in stack trace */
7736 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7738 mono_mb_emit_byte (mb, CEE_LDARG_0);
7739 for (i = 1; i <= csig->param_count; i++)
7740 mono_mb_emit_ldarg (mb, i);
7741 mono_mb_emit_managed_call (mb, res, NULL);
7742 mono_mb_emit_byte (mb, CEE_RET);
7744 /* use native_wrapper_cache because internal calls are looked up there */
7745 res = mono_mb_create_and_cache (cache, method,
7746 mb, csig, csig->param_count + 1);
7754 /* exception will be thrown */
7755 piinfo->addr = NULL;
7756 g_warning ("cannot find CreateString for .ctor");
7759 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7761 mb->method->save_lmf = 1;
7764 * In AOT mode and embedding scenarios, it is possible that the icall is not
7765 * registered in the runtime doing the AOT compilation.
7767 if (!piinfo->addr && !aot) {
7768 mono_mb_emit_exception (mb, exc_class, exc_arg);
7769 csig = signature_dup (method->klass->image, sig);
7771 res = mono_mb_create_and_cache (cache, method,
7772 mb, csig, csig->param_count + 16);
7777 /* internal calls: we simply push all arguments and call the method (no conversions) */
7778 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7780 /* hack - string constructors returns a value */
7781 if (method->string_ctor) {
7782 csig = signature_dup (method->klass->image, sig);
7783 csig->ret = &mono_defaults.string_class->byval_arg;
7788 mono_mb_emit_byte (mb, CEE_LDARG_0);
7790 for (i = 0; i < sig->param_count; i++)
7791 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7794 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7795 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7796 mono_mb_emit_calli (mb, csig);
7798 g_assert (piinfo->addr);
7799 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7801 if (check_exceptions)
7802 emit_thread_interrupt_checkpoint (mb);
7803 mono_mb_emit_byte (mb, CEE_RET);
7805 csig = signature_dup (method->klass->image, csig);
7807 res = mono_mb_create_and_cache (cache, method,
7808 mb, csig, csig->param_count + 16);
7815 g_assert (piinfo->addr);
7817 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7818 mono_method_get_marshal_info (method, mspecs);
7820 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
7822 csig = signature_dup (method->klass->image, sig);
7824 res = mono_mb_create_and_cache (cache, method,
7825 mb, csig, csig->param_count + 16);
7828 for (i = sig->param_count; i >= 0; i--)
7830 mono_metadata_free_marshal_spec (mspecs [i]);
7833 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
7839 * mono_marshal_get_native_func_wrapper:
7840 * @image: The image to use for memory allocation and for looking up custom marshallers.
7841 * @sig: The signature of the function
7842 * @func: The native function to wrap
7844 * Returns a wrapper method around native functions, similar to the pinvoke
7848 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7849 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7851 MonoMethodSignature *csig;
7853 MonoMethodBuilder *mb;
7858 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7859 if ((res = mono_marshal_find_in_cache (cache, func)))
7862 name = g_strdup_printf ("wrapper_native_%p", func);
7863 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7864 mb->method->save_lmf = 1;
7866 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
7868 csig = signature_dup (image, sig);
7870 res = mono_mb_create_and_cache (cache, func,
7871 mb, csig, csig->param_count + 16);
7874 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
7880 * mono_marshal_emit_managed_wrapper:
7882 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7883 * the delegate which wraps the managed method to be called. For closed delegates,
7884 * it could have fewer parameters than the method it wraps.
7885 * THIS_LOC is the memory location where the target of the delegate is stored.
7888 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
7890 MonoMethodSignature *sig, *csig;
7892 gboolean closed = FALSE;
7897 /* allocate local 0 (pointer) src_ptr */
7898 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7899 /* allocate local 1 (pointer) dst_ptr */
7900 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7901 /* allocate local 2 (boolean) delete_old */
7902 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7904 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7905 /* Closed delegate */
7906 g_assert (sig->param_count == invoke_sig->param_count + 1);
7908 /* Use a new signature without the first argument */
7909 sig = mono_metadata_signature_dup (sig);
7910 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7911 sig->param_count --;
7914 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7915 /* allocate local 3 to store the return value */
7916 mono_mb_add_local (mb, sig->ret);
7919 mono_mb_emit_icon (mb, 0);
7920 mono_mb_emit_stloc (mb, 2);
7922 /* we first do all conversions */
7923 tmp_locals = alloca (sizeof (int) * sig->param_count);
7924 for (i = 0; i < sig->param_count; i ++) {
7925 MonoType *t = sig->params [i];
7928 case MONO_TYPE_OBJECT:
7929 case MONO_TYPE_CLASS:
7930 case MONO_TYPE_VALUETYPE:
7931 case MONO_TYPE_ARRAY:
7932 case MONO_TYPE_SZARRAY:
7933 case MONO_TYPE_STRING:
7934 case MONO_TYPE_BOOLEAN:
7935 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7944 emit_thread_interrupt_checkpoint (mb);
7948 mono_mb_emit_ptr (mb, this_loc);
7949 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7952 g_assert_not_reached ();
7954 } else if (closed) {
7955 mono_mb_emit_ptr (mb, this_loc);
7956 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7959 for (i = 0; i < sig->param_count; i++) {
7960 MonoType *t = sig->params [i];
7962 if (tmp_locals [i]) {
7964 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7966 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7969 mono_mb_emit_ldarg (mb, i);
7972 mono_mb_emit_managed_call (mb, method, NULL);
7974 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7975 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7976 } else if (!sig->ret->byref) {
7977 switch (sig->ret->type) {
7978 case MONO_TYPE_VOID:
7980 case MONO_TYPE_BOOLEAN:
7983 case MONO_TYPE_CHAR:
7995 case MONO_TYPE_OBJECT:
7996 mono_mb_emit_stloc (mb, 3);
7998 case MONO_TYPE_STRING:
7999 csig->ret = &mono_defaults.int_class->byval_arg;
8000 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8002 case MONO_TYPE_VALUETYPE:
8003 case MONO_TYPE_CLASS:
8004 case MONO_TYPE_SZARRAY:
8005 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8008 g_warning ("return type 0x%02x unknown", sig->ret->type);
8009 g_assert_not_reached ();
8012 mono_mb_emit_stloc (mb, 3);
8015 /* Convert byref arguments back */
8016 for (i = 0; i < sig->param_count; i ++) {
8017 MonoType *t = sig->params [i];
8018 MonoMarshalSpec *spec = mspecs [i + 1];
8020 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8021 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8023 else if (t->byref) {
8025 case MONO_TYPE_CLASS:
8026 case MONO_TYPE_VALUETYPE:
8027 case MONO_TYPE_OBJECT:
8028 case MONO_TYPE_STRING:
8029 case MONO_TYPE_BOOLEAN:
8030 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8034 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8035 /* The [Out] information is encoded in the delegate signature */
8037 case MONO_TYPE_SZARRAY:
8038 case MONO_TYPE_CLASS:
8039 case MONO_TYPE_VALUETYPE:
8040 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8043 g_assert_not_reached ();
8048 if (m->retobj_var) {
8049 mono_mb_emit_ldloc (mb, m->retobj_var);
8050 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8051 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8054 if (!MONO_TYPE_IS_VOID(sig->ret))
8055 mono_mb_emit_ldloc (mb, 3);
8056 mono_mb_emit_byte (mb, CEE_RET);
8065 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8067 MonoMethodSignature *sig;
8070 #ifdef PLATFORM_WIN32
8072 * Under windows, delegates passed to native code must use the STDCALL
8073 * calling convention.
8075 csig->call_convention = MONO_CALL_STDCALL;
8078 sig = mono_method_signature (method);
8080 /* Change default calling convention if needed */
8081 /* Why is this a modopt ? */
8082 if (sig->ret && sig->ret->num_mods) {
8083 for (i = 0; i < sig->ret->num_mods; ++i) {
8084 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8085 g_assert (cmod_class);
8086 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8087 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8088 csig->call_convention = MONO_CALL_C;
8089 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8090 csig->call_convention = MONO_CALL_STDCALL;
8091 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8092 csig->call_convention = MONO_CALL_FASTCALL;
8093 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8094 csig->call_convention = MONO_CALL_THISCALL;
8101 * generates IL code to call managed methods from unmanaged code
8104 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8106 static MonoClass *UnmanagedFunctionPointerAttribute;
8107 MonoMethodSignature *sig, *csig, *invoke_sig;
8108 MonoMethodBuilder *mb;
8109 MonoMethod *res, *invoke;
8110 MonoMarshalSpec **mspecs;
8111 MonoMethodPInvoke piinfo;
8114 EmitMarshalContext m;
8116 g_assert (method != NULL);
8117 g_assert (!mono_method_signature (method)->pinvoke);
8120 * FIXME: Should cache the method+delegate type pair, since the same method
8121 * could be called with different delegates, thus different marshalling
8124 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8125 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8128 invoke = mono_get_delegate_invoke (delegate_klass);
8129 invoke_sig = mono_method_signature (invoke);
8131 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8132 mono_method_get_marshal_info (invoke, mspecs);
8134 sig = mono_method_signature (method);
8136 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8138 /* we copy the signature, so that we can modify it */
8140 /* Need to free this later */
8141 csig = mono_metadata_signature_dup (invoke_sig);
8143 csig = signature_dup (method->klass->image, invoke_sig);
8152 m.image = method->klass->image;
8154 mono_marshal_set_callconv_from_modopt (invoke, csig);
8156 /* Handle the UnmanagedFunctionPointerAttribute */
8157 if (!UnmanagedFunctionPointerAttribute)
8158 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8160 /* The attribute is only available in Net 2.0 */
8161 if (UnmanagedFunctionPointerAttribute) {
8162 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8163 MonoCustomAttrInfo *cinfo;
8166 * The pinvoke attributes are stored in a real custom attribute so we have to
8169 cinfo = mono_custom_attrs_from_class (delegate_klass);
8171 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8173 memset (&piinfo, 0, sizeof (piinfo));
8175 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8177 csig->call_convention = attr->call_conv - 1;
8180 mono_custom_attrs_free (cinfo);
8184 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8187 res = mono_mb_create_and_cache (cache, method,
8188 mb, csig, sig->param_count + 16);
8191 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8195 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8197 mono_metadata_free_marshal_spec (mspecs [i]);
8200 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8206 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8209 MonoMethodSignature *sig;
8210 MonoMethodBuilder *mb;
8215 method = mono_get_method (image, token, NULL);
8218 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8219 MonoMethodSignature *csig;
8220 MonoMarshalSpec **mspecs;
8221 EmitMarshalContext m;
8223 sig = mono_method_signature (method);
8224 g_assert (!sig->hasthis);
8226 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8227 mono_method_get_marshal_info (method, mspecs);
8229 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8230 csig = signature_dup (image, sig);
8241 mono_marshal_set_callconv_from_modopt (method, csig);
8243 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8245 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8248 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8251 for (i = sig->param_count; i >= 0; i--)
8253 mono_metadata_free_marshal_spec (mspecs [i]);
8256 return mono_compile_method (method);
8259 sig = mono_method_signature (method);
8260 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8262 param_count = sig->param_count + sig->hasthis;
8263 for (i = 0; i < param_count; i++)
8264 mono_mb_emit_ldarg (mb, i);
8266 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8267 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8269 mono_mb_emit_op (mb, CEE_CALL, method);
8270 mono_mb_emit_byte (mb, CEE_RET);
8273 method = mono_mb_create_method (mb, sig, param_count);
8276 return mono_compile_method (method);
8279 static MonoReflectionType *
8280 type_from_handle (MonoType *handle)
8282 MonoDomain *domain = mono_domain_get ();
8283 MonoClass *klass = mono_class_from_mono_type (handle);
8285 MONO_ARCH_SAVE_REGS;
8287 mono_class_init (klass);
8288 return mono_type_get_object (domain, handle);
8292 * mono_marshal_get_isinst:
8293 * @klass: the type of the field
8295 * This method generates a function which can be used to check if an object is
8296 * an instance of the given type, icluding the case where the object is a proxy.
8297 * The generated function has the following signature:
8298 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8301 mono_marshal_get_isinst (MonoClass *klass)
8303 static MonoMethodSignature *isint_sig = NULL;
8306 int pos_was_ok, pos_failed, pos_end, pos_end2;
8308 MonoMethodBuilder *mb;
8310 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8311 if ((res = mono_marshal_find_in_cache (cache, klass)))
8315 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8316 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8317 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8318 isint_sig->pinvoke = 0;
8321 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8322 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8325 mb->method->save_lmf = 1;
8327 /* check if the object is a proxy that needs special cast */
8328 mono_mb_emit_ldarg (mb, 0);
8329 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8330 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8332 /* The result of MONO_ISINST can be:
8333 0) the type check succeeded
8334 1) the type check did not succeed
8335 2) a CanCastTo call is needed */
8337 mono_mb_emit_byte (mb, CEE_DUP);
8338 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8340 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8341 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8343 /* get the real proxy from the transparent proxy*/
8345 mono_mb_emit_ldarg (mb, 0);
8346 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8347 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8351 mono_mb_patch_branch (mb, pos_failed);
8352 mono_mb_emit_byte (mb, CEE_LDNULL);
8353 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8357 mono_mb_patch_branch (mb, pos_was_ok);
8358 mono_mb_emit_byte (mb, CEE_POP);
8359 mono_mb_emit_ldarg (mb, 0);
8363 mono_mb_patch_branch (mb, pos_end);
8364 mono_mb_patch_branch (mb, pos_end2);
8365 mono_mb_emit_byte (mb, CEE_RET);
8367 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8374 * mono_marshal_get_castclass:
8375 * @klass: the type of the field
8377 * This method generates a function which can be used to cast an object to
8378 * an instance of the given type, icluding the case where the object is a proxy.
8379 * The generated function has the following signature:
8380 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8383 mono_marshal_get_castclass (MonoClass *klass)
8385 static MonoMethodSignature *castclass_sig = NULL;
8388 int pos_was_ok, pos_was_ok2;
8390 MonoMethodBuilder *mb;
8392 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8393 if ((res = mono_marshal_find_in_cache (cache, klass)))
8396 if (!castclass_sig) {
8397 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8398 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8399 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8400 castclass_sig->pinvoke = 0;
8403 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8404 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8407 mb->method->save_lmf = 1;
8409 /* check if the object is a proxy that needs special cast */
8410 mono_mb_emit_ldarg (mb, 0);
8411 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8412 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8414 /* The result of MONO_ISINST can be:
8415 0) the cast is valid
8416 1) cast of unknown proxy type
8417 or an exception if the cast is is invalid
8420 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8422 /* get the real proxy from the transparent proxy*/
8424 mono_mb_emit_ldarg (mb, 0);
8425 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8426 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8429 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8432 mono_mb_patch_branch (mb, pos_was_ok);
8433 mono_mb_patch_branch (mb, pos_was_ok2);
8434 mono_mb_emit_ldarg (mb, 0);
8437 mono_mb_emit_byte (mb, CEE_RET);
8439 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8446 mono_marshal_get_proxy_cancast (MonoClass *klass)
8448 static MonoMethodSignature *isint_sig = NULL;
8451 int pos_failed, pos_end;
8453 MonoMethod *can_cast_to;
8454 MonoMethodDesc *desc;
8455 MonoMethodBuilder *mb;
8457 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8458 if ((res = mono_marshal_find_in_cache (cache, klass)))
8462 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8463 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8464 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8465 isint_sig->pinvoke = 0;
8468 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8469 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8472 mb->method->save_lmf = 1;
8474 /* get the real proxy from the transparent proxy*/
8475 mono_mb_emit_ldarg (mb, 0);
8476 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8477 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8479 /* get the reflection type from the type handle */
8480 mono_mb_emit_ptr (mb, &klass->byval_arg);
8481 mono_mb_emit_icall (mb, type_from_handle);
8483 mono_mb_emit_ldarg (mb, 0);
8485 /* make the call to CanCastTo (type, ob) */
8486 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8487 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8488 g_assert (can_cast_to);
8489 mono_method_desc_free (desc);
8490 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8492 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8494 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8495 mono_mb_emit_ptr (mb, &klass->byval_arg);
8496 mono_mb_emit_icall (mb, type_from_handle);
8497 mono_mb_emit_ldarg (mb, 0);
8499 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8500 emit_thread_interrupt_checkpoint (mb);
8502 mono_mb_emit_ldarg (mb, 0);
8503 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8507 mono_mb_patch_branch (mb, pos_failed);
8508 mono_mb_emit_byte (mb, CEE_LDNULL);
8512 mono_mb_patch_branch (mb, pos_end);
8513 mono_mb_emit_byte (mb, CEE_RET);
8515 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8522 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8525 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8526 klass = mono_class_from_mono_type (rtype->type);
8527 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8531 * mono_marshal_get_struct_to_ptr:
8534 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8537 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8539 MonoMethodBuilder *mb;
8540 static MonoMethod *stoptr = NULL;
8543 g_assert (klass != NULL);
8545 mono_marshal_load_type_info (klass);
8547 if (klass->marshal_info->str_to_ptr)
8548 return klass->marshal_info->str_to_ptr;
8551 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8554 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8556 if (klass->blittable) {
8557 mono_mb_emit_byte (mb, CEE_LDARG_1);
8558 mono_mb_emit_byte (mb, CEE_LDARG_0);
8559 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8560 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8561 mono_mb_emit_byte (mb, CEE_PREFIX1);
8562 mono_mb_emit_byte (mb, CEE_CPBLK);
8565 /* allocate local 0 (pointer) src_ptr */
8566 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8567 /* allocate local 1 (pointer) dst_ptr */
8568 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8569 /* allocate local 2 (boolean) delete_old */
8570 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8571 mono_mb_emit_byte (mb, CEE_LDARG_2);
8572 mono_mb_emit_stloc (mb, 2);
8574 /* initialize src_ptr to point to the start of object data */
8575 mono_mb_emit_byte (mb, CEE_LDARG_0);
8576 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8577 mono_mb_emit_stloc (mb, 0);
8579 /* initialize dst_ptr */
8580 mono_mb_emit_byte (mb, CEE_LDARG_1);
8581 mono_mb_emit_stloc (mb, 1);
8583 emit_struct_conv (mb, klass, FALSE);
8586 mono_mb_emit_byte (mb, CEE_RET);
8588 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
8591 klass->marshal_info->str_to_ptr = res;
8596 * mono_marshal_get_ptr_to_struct:
8599 * generates IL code for PtrToStructure (IntPtr src, object structure)
8602 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8604 MonoMethodBuilder *mb;
8605 static MonoMethodSignature *ptostr = NULL;
8608 g_assert (klass != NULL);
8610 mono_marshal_load_type_info (klass);
8612 if (klass->marshal_info->ptr_to_str)
8613 return klass->marshal_info->ptr_to_str;
8616 MonoMethodSignature *sig;
8618 /* Create the signature corresponding to
8619 static void PtrToStructure (IntPtr ptr, object structure);
8620 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8621 sig = mono_create_icall_signature ("void ptr object");
8622 sig = signature_dup (mono_defaults.corlib, sig);
8624 mono_memory_barrier ();
8628 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8630 if (klass->blittable) {
8631 mono_mb_emit_byte (mb, CEE_LDARG_1);
8632 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8633 mono_mb_emit_byte (mb, CEE_LDARG_0);
8634 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8635 mono_mb_emit_byte (mb, CEE_PREFIX1);
8636 mono_mb_emit_byte (mb, CEE_CPBLK);
8639 /* allocate local 0 (pointer) src_ptr */
8640 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8641 /* allocate local 1 (pointer) dst_ptr */
8642 mono_mb_add_local (mb, &klass->this_arg);
8644 /* initialize src_ptr to point to the start of object data */
8645 mono_mb_emit_byte (mb, CEE_LDARG_0);
8646 mono_mb_emit_stloc (mb, 0);
8648 /* initialize dst_ptr */
8649 mono_mb_emit_byte (mb, CEE_LDARG_1);
8650 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8651 mono_mb_emit_stloc (mb, 1);
8653 emit_struct_conv (mb, klass, TRUE);
8656 mono_mb_emit_byte (mb, CEE_RET);
8658 res = mono_mb_create_method (mb, ptostr, 0);
8661 klass->marshal_info->ptr_to_str = res;
8666 * generates IL code for the synchronized wrapper: the generated method
8667 * calls METHOD while locking 'this' or the parent type.
8670 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8672 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8673 MonoMethodSignature *sig;
8674 MonoExceptionClause *clause;
8675 MonoMethodBuilder *mb;
8678 int i, pos, this_local, ret_local = 0;
8682 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8685 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8686 if ((res = mono_marshal_find_in_cache (cache, method)))
8689 sig = signature_dup (method->klass->image, mono_method_signature (method));
8692 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8695 if (!MONO_TYPE_IS_VOID (sig->ret))
8696 ret_local = mono_mb_add_local (mb, sig->ret);
8698 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8699 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8700 /* This will throw the type load exception when the wrapper is compiled */
8701 mono_mb_emit_byte (mb, CEE_LDNULL);
8702 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8703 mono_mb_emit_byte (mb, CEE_POP);
8705 if (!MONO_TYPE_IS_VOID (sig->ret))
8706 mono_mb_emit_ldloc (mb, ret_local);
8707 mono_mb_emit_byte (mb, CEE_RET);
8709 res = mono_mb_create_and_cache (cache, method,
8710 mb, sig, sig->param_count + 16);
8717 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8719 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8720 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8722 mono_loader_lock ();
8724 if (!enter_method) {
8725 MonoMethodDesc *desc;
8727 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8728 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8729 g_assert (enter_method);
8730 mono_method_desc_free (desc);
8732 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8733 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8734 g_assert (exit_method);
8735 mono_method_desc_free (desc);
8737 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8738 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
8739 g_assert (gettypefromhandle_method);
8740 mono_method_desc_free (desc);
8743 mono_loader_unlock ();
8745 /* Push this or the type object */
8746 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8747 /* We have special handling for this in the JIT */
8748 int index = mono_mb_add_data (mb, method->klass);
8749 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8750 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8751 mono_mb_emit_i4 (mb, index);
8753 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8756 mono_mb_emit_ldarg (mb, 0);
8757 mono_mb_emit_stloc (mb, this_local);
8759 /* Call Monitor::Enter() */
8760 mono_mb_emit_ldloc (mb, this_local);
8761 mono_mb_emit_managed_call (mb, enter_method, NULL);
8763 clause->try_offset = mono_mb_get_label (mb);
8765 /* Call the method */
8767 mono_mb_emit_ldarg (mb, 0);
8768 for (i = 0; i < sig->param_count; i++)
8769 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8771 mono_mb_emit_managed_call (mb, method, NULL);
8773 if (!MONO_TYPE_IS_VOID (sig->ret))
8774 mono_mb_emit_stloc (mb, ret_local);
8776 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8778 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8779 clause->handler_offset = mono_mb_get_label (mb);
8781 /* Call Monitor::Exit() */
8782 mono_mb_emit_ldloc (mb, this_local);
8783 mono_mb_emit_managed_call (mb, exit_method, NULL);
8784 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8786 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8788 mono_mb_patch_branch (mb, pos);
8789 if (!MONO_TYPE_IS_VOID (sig->ret))
8790 mono_mb_emit_ldloc (mb, ret_local);
8791 mono_mb_emit_byte (mb, CEE_RET);
8793 mono_mb_set_clauses (mb, 1, clause);
8795 res = mono_mb_create_and_cache (cache, method,
8796 mb, sig, sig->param_count + 16);
8804 * the returned method calls 'method' unboxing the this argument
8807 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8809 MonoMethodSignature *sig = mono_method_signature (method);
8811 MonoMethodBuilder *mb;
8815 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8816 if ((res = mono_marshal_find_in_cache (cache, method)))
8819 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8821 g_assert (sig->hasthis);
8823 mono_mb_emit_ldarg (mb, 0);
8824 mono_mb_emit_icon (mb, sizeof (MonoObject));
8825 mono_mb_emit_byte (mb, CEE_ADD);
8826 for (i = 0; i < sig->param_count; ++i)
8827 mono_mb_emit_ldarg (mb, i + 1);
8828 mono_mb_emit_managed_call (mb, method, NULL);
8829 mono_mb_emit_byte (mb, CEE_RET);
8831 res = mono_mb_create_and_cache (cache, method,
8832 mb, sig, sig->param_count + 16);
8835 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8841 mono_marshal_get_stelemref ()
8843 static MonoMethod* ret = NULL;
8844 MonoMethodSignature *sig;
8845 MonoMethodBuilder *mb;
8847 guint32 b1, b2, b3, b4;
8850 int array_slot_addr;
8855 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8858 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8860 /* void stelemref (void* array, int idx, void* value) */
8861 sig->ret = &mono_defaults.void_class->byval_arg;
8862 sig->params [0] = &mono_defaults.object_class->byval_arg;
8863 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8864 sig->params [2] = &mono_defaults.object_class->byval_arg;
8866 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8867 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8868 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8872 <ldelema (bound check)>
8876 aklass = array->vtable->klass->element_class;
8877 vklass = value->vtable->klass;
8879 if (vklass->idepth < aklass->idepth)
8882 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8886 *array_slot_addr = value;
8890 if (mono_object_isinst (value, aklass))
8893 throw new ArrayTypeMismatchException ();
8896 /* ldelema (implicit bound check) */
8897 mono_mb_emit_ldarg (mb, 0);
8898 mono_mb_emit_ldarg (mb, 1);
8899 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8900 mono_mb_emit_stloc (mb, array_slot_addr);
8902 /* if (!value) goto do_store */
8903 mono_mb_emit_ldarg (mb, 2);
8904 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8906 /* aklass = array->vtable->klass->element_class */
8907 mono_mb_emit_ldarg (mb, 0);
8908 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8909 mono_mb_emit_byte (mb, CEE_LDIND_I);
8910 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8911 mono_mb_emit_byte (mb, CEE_LDIND_I);
8912 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
8913 mono_mb_emit_byte (mb, CEE_LDIND_I);
8914 mono_mb_emit_stloc (mb, aklass);
8916 /* vklass = value->vtable->klass */
8917 mono_mb_emit_ldarg (mb, 2);
8918 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8919 mono_mb_emit_byte (mb, CEE_LDIND_I);
8920 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8921 mono_mb_emit_byte (mb, CEE_LDIND_I);
8922 mono_mb_emit_stloc (mb, vklass);
8924 /* if (vklass->idepth < aklass->idepth) goto failue */
8925 mono_mb_emit_ldloc (mb, vklass);
8926 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8927 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8929 mono_mb_emit_ldloc (mb, aklass);
8930 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8931 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8933 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
8935 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
8936 mono_mb_emit_ldloc (mb, vklass);
8937 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
8938 mono_mb_emit_byte (mb, CEE_LDIND_I);
8940 mono_mb_emit_ldloc (mb, aklass);
8941 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8942 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8943 mono_mb_emit_icon (mb, 1);
8944 mono_mb_emit_byte (mb, CEE_SUB);
8945 mono_mb_emit_icon (mb, sizeof (void*));
8946 mono_mb_emit_byte (mb, CEE_MUL);
8947 mono_mb_emit_byte (mb, CEE_ADD);
8948 mono_mb_emit_byte (mb, CEE_LDIND_I);
8950 mono_mb_emit_ldloc (mb, aklass);
8952 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
8954 copy_pos = mono_mb_get_label (mb);
8956 mono_mb_patch_branch (mb, b1);
8957 mono_mb_emit_ldloc (mb, array_slot_addr);
8958 mono_mb_emit_ldarg (mb, 2);
8959 mono_mb_emit_byte (mb, CEE_STIND_REF);
8961 mono_mb_emit_byte (mb, CEE_RET);
8964 mono_mb_patch_branch (mb, b2);
8965 mono_mb_patch_branch (mb, b3);
8967 mono_mb_emit_ldarg (mb, 2);
8968 mono_mb_emit_ldloc (mb, aklass);
8969 mono_mb_emit_icall (mb, mono_object_isinst);
8971 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8972 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
8973 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8975 mono_mb_emit_byte (mb, CEE_RET);
8976 ret = mono_mb_create_method (mb, sig, 4);
8987 /* LOCKING: vars accessed under the marshal lock */
8988 static ArrayElemAddr *elem_addr_cache = NULL;
8989 static int elem_addr_cache_size = 0;
8990 static int elem_addr_cache_next = 0;
8993 * mono_marshal_get_array_address:
8994 * @rank: rank of the array type
8995 * @elem_size: size in bytes of an element of an array.
8997 * Returns a MonoMethd that implements the code to get the address
8998 * of an element in a multi-dimenasional array of @rank dimensions.
8999 * The returned method takes an array as the first argument and then
9000 * @rank indexes for the @rank dimensions.
9003 mono_marshal_get_array_address (int rank, int elem_size)
9006 MonoMethodBuilder *mb;
9007 MonoMethodSignature *sig;
9008 int i, bounds, ind, realidx;
9009 int branch_pos, *branch_positions;
9013 mono_marshal_lock ();
9014 for (i = 0; i < elem_addr_cache_next; ++i) {
9015 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9016 ret = elem_addr_cache [i].method;
9020 mono_marshal_unlock ();
9024 branch_positions = g_new0 (int, rank);
9026 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9028 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9029 sig->ret = &mono_defaults.int_class->byval_arg;
9030 sig->params [0] = &mono_defaults.object_class->byval_arg;
9031 for (i = 0; i < rank; ++i) {
9032 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9035 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9037 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9038 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9039 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9041 /* bounds = array->bounds; */
9042 mono_mb_emit_ldarg (mb, 0);
9043 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9044 mono_mb_emit_byte (mb, CEE_LDIND_I);
9045 mono_mb_emit_stloc (mb, bounds);
9047 /* ind is the overall element index, realidx is the partial index in a single dimension */
9048 /* ind = idx0 - bounds [0].lower_bound */
9049 mono_mb_emit_ldarg (mb, 1);
9050 mono_mb_emit_ldloc (mb, bounds);
9051 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9052 mono_mb_emit_byte (mb, CEE_ADD);
9053 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9054 mono_mb_emit_byte (mb, CEE_SUB);
9055 mono_mb_emit_stloc (mb, ind);
9056 /* if (ind >= bounds [0].length) goto exeception; */
9057 mono_mb_emit_ldloc (mb, ind);
9058 mono_mb_emit_ldloc (mb, bounds);
9059 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9060 mono_mb_emit_byte (mb, CEE_ADD);
9061 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9062 /* note that we use unsigned comparison */
9063 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9065 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9066 * We could also decide to ignore the passed elem_size and get it
9067 * from the array object, to reduce the number of methods we generate:
9068 * the additional cost is 3 memory loads and a non-immediate mul.
9070 for (i = 1; i < rank; ++i) {
9071 /* realidx = idxi - bounds [i].lower_bound */
9072 mono_mb_emit_ldarg (mb, 1 + i);
9073 mono_mb_emit_ldloc (mb, bounds);
9074 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9075 mono_mb_emit_byte (mb, CEE_ADD);
9076 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9077 mono_mb_emit_byte (mb, CEE_SUB);
9078 mono_mb_emit_stloc (mb, realidx);
9079 /* if (realidx >= bounds [i].length) goto exeception; */
9080 mono_mb_emit_ldloc (mb, realidx);
9081 mono_mb_emit_ldloc (mb, bounds);
9082 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9083 mono_mb_emit_byte (mb, CEE_ADD);
9084 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9085 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9086 /* ind = ind * bounds [i].length + realidx */
9087 mono_mb_emit_ldloc (mb, ind);
9088 mono_mb_emit_ldloc (mb, bounds);
9089 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9090 mono_mb_emit_byte (mb, CEE_ADD);
9091 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9092 mono_mb_emit_byte (mb, CEE_MUL);
9093 mono_mb_emit_ldloc (mb, realidx);
9094 mono_mb_emit_byte (mb, CEE_ADD);
9095 mono_mb_emit_stloc (mb, ind);
9098 /* return array->vector + ind * element_size */
9099 mono_mb_emit_ldarg (mb, 0);
9100 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9101 mono_mb_emit_ldloc (mb, ind);
9102 mono_mb_emit_icon (mb, elem_size);
9103 mono_mb_emit_byte (mb, CEE_MUL);
9104 mono_mb_emit_byte (mb, CEE_ADD);
9105 mono_mb_emit_byte (mb, CEE_RET);
9107 /* patch the branches to get here and throw */
9108 for (i = 1; i < rank; ++i) {
9109 mono_mb_patch_branch (mb, branch_positions [i]);
9111 mono_mb_patch_branch (mb, branch_pos);
9112 /* throw exception */
9113 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9115 g_free (branch_positions);
9116 ret = mono_mb_create_method (mb, sig, 4);
9119 /* cache the result */
9121 mono_marshal_lock ();
9122 for (i = 0; i < elem_addr_cache_next; ++i) {
9123 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9124 /* FIXME: free ret */
9125 ret = elem_addr_cache [i].method;
9131 if (elem_addr_cache_next >= elem_addr_cache_size) {
9132 int new_size = elem_addr_cache_size + 4;
9133 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9134 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9135 g_free (elem_addr_cache);
9136 elem_addr_cache = new_array;
9137 elem_addr_cache_size = new_size;
9139 elem_addr_cache [elem_addr_cache_next].rank = rank;
9140 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9141 elem_addr_cache [elem_addr_cache_next].method = ret;
9143 mono_marshal_unlock ();
9148 mono_marshal_alloc (gulong size)
9152 #ifdef PLATFORM_WIN32
9153 res = CoTaskMemAlloc (size);
9155 res = g_try_malloc ((gulong)size);
9157 mono_gc_out_of_memory ((gulong)size);
9163 mono_marshal_free (gpointer ptr)
9165 #ifdef PLATFORM_WIN32
9166 CoTaskMemFree (ptr);
9173 mono_marshal_free_array (gpointer *ptr, int size)
9180 for (i = 0; i < size; i++)
9186 mono_marshal_string_to_utf16 (MonoString *s)
9188 return s ? mono_string_chars (s) : NULL;
9192 mono_marshal_string_to_utf16_copy (MonoString *s)
9197 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9198 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9199 res [mono_string_length (s)] = 0;
9205 * mono_marshal_set_last_error:
9207 * This function is invoked to set the last error value from a P/Invoke call
9208 * which has SetLastError set.
9211 mono_marshal_set_last_error (void)
9214 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9216 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9221 mono_marshal_set_last_error_windows (int error)
9224 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9229 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9230 gpointer dest, gint32 length)
9235 MONO_ARCH_SAVE_REGS;
9237 MONO_CHECK_ARG_NULL (src);
9238 MONO_CHECK_ARG_NULL (dest);
9240 if (src->obj.vtable->klass->rank != 1)
9241 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9242 if (start_index < 0)
9243 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9245 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9246 if (start_index + length > mono_array_length (src))
9247 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9249 element_size = mono_array_element_size (src->obj.vtable->klass);
9251 /* no references should be involved */
9252 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9254 memcpy (dest, source_addr, length * element_size);
9258 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9259 MonoArray *dest, gint32 length)
9264 MONO_ARCH_SAVE_REGS;
9266 MONO_CHECK_ARG_NULL (src);
9267 MONO_CHECK_ARG_NULL (dest);
9269 if (dest->obj.vtable->klass->rank != 1)
9270 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9271 if (start_index < 0)
9272 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9274 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9275 if (start_index + length > mono_array_length (dest))
9276 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9278 element_size = mono_array_element_size (dest->obj.vtable->klass);
9280 /* no references should be involved */
9281 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9283 memcpy (dest_addr, src, length * element_size);
9286 #if NO_UNALIGNED_ACCESS
9287 #define RETURN_UNALIGNED(type, addr) \
9290 memcpy(&val, p + offset, sizeof(val)); \
9293 #define WRITE_UNALIGNED(type, addr, val) \
9294 memcpy(addr, &val, sizeof(type))
9296 #define RETURN_UNALIGNED(type, addr) \
9297 return *(type*)(p + offset);
9298 #define WRITE_UNALIGNED(type, addr, val) \
9299 (*(type *)(addr) = (val))
9303 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9307 MONO_ARCH_SAVE_REGS;
9309 RETURN_UNALIGNED(gpointer, p + offset);
9313 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9317 MONO_ARCH_SAVE_REGS;
9319 return *(unsigned char*)(p + offset);
9323 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9327 MONO_ARCH_SAVE_REGS;
9329 RETURN_UNALIGNED(gint16, p + offset);
9333 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9337 MONO_ARCH_SAVE_REGS;
9339 RETURN_UNALIGNED(gint32, p + offset);
9343 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9347 MONO_ARCH_SAVE_REGS;
9349 RETURN_UNALIGNED(gint64, p + offset);
9353 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9357 MONO_ARCH_SAVE_REGS;
9359 *(unsigned char*)(p + offset) = val;
9363 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9367 MONO_ARCH_SAVE_REGS;
9369 WRITE_UNALIGNED(gpointer, p + offset, val);
9373 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9377 MONO_ARCH_SAVE_REGS;
9379 WRITE_UNALIGNED(gint16, p + offset, val);
9383 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9387 MONO_ARCH_SAVE_REGS;
9389 WRITE_UNALIGNED(gint32, p + offset, val);
9393 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9397 MONO_ARCH_SAVE_REGS;
9399 WRITE_UNALIGNED(gint64, p + offset, val);
9403 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9405 MONO_ARCH_SAVE_REGS;
9410 return mono_string_new (mono_domain_get (), ptr);
9414 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9416 MONO_ARCH_SAVE_REGS;
9419 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9420 g_assert_not_reached ();
9423 return mono_string_new_len (mono_domain_get (), ptr, len);
9428 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9430 MonoDomain *domain = mono_domain_get ();
9434 MONO_ARCH_SAVE_REGS;
9442 return mono_string_new_utf16 (domain, ptr, len);
9446 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9448 MonoDomain *domain = mono_domain_get ();
9450 MONO_ARCH_SAVE_REGS;
9453 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9454 g_assert_not_reached ();
9457 return mono_string_new_utf16 (domain, ptr, len);
9462 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9464 MONO_ARCH_SAVE_REGS;
9466 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9470 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9476 MONO_ARCH_SAVE_REGS;
9478 MONO_CHECK_ARG_NULL (rtype);
9481 klass = mono_class_from_mono_type (type);
9482 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9484 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9488 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9489 exc = mono_get_exception_argument ("t", msg);
9491 mono_raise_exception (exc);
9495 return mono_class_native_size (klass, NULL);
9499 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9504 MONO_ARCH_SAVE_REGS;
9506 MONO_CHECK_ARG_NULL (obj);
9507 MONO_CHECK_ARG_NULL (dst);
9509 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9513 pa [2] = &delete_old;
9515 mono_runtime_invoke (method, NULL, pa, NULL);
9519 ptr_to_structure (gpointer src, MonoObject *dst)
9524 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9529 mono_runtime_invoke (method, NULL, pa, NULL);
9533 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9537 MONO_ARCH_SAVE_REGS;
9539 MONO_CHECK_ARG_NULL (src);
9540 MONO_CHECK_ARG_NULL (dst);
9542 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9544 if (t->type == MONO_TYPE_VALUETYPE) {
9548 tmp = g_strdup_printf ("Destination is a boxed value type.");
9549 exc = mono_get_exception_argument ("dst", tmp);
9552 mono_raise_exception (exc);
9556 ptr_to_structure (src, dst);
9560 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
9562 MonoDomain *domain = mono_domain_get ();
9565 MONO_ARCH_SAVE_REGS;
9567 MONO_CHECK_ARG_NULL (src);
9568 MONO_CHECK_ARG_NULL (type);
9570 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
9572 ptr_to_structure (src, res);
9578 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
9580 MonoMarshalType *info;
9583 int match_index = -1;
9585 MONO_ARCH_SAVE_REGS;
9587 MONO_CHECK_ARG_NULL (type);
9588 MONO_CHECK_ARG_NULL (field_name);
9590 fname = mono_string_to_utf8 (field_name);
9591 klass = mono_class_from_mono_type (type->type);
9593 while (klass && match_index == -1) {
9594 MonoClassField* field;
9596 gpointer iter = NULL;
9597 while ((field = mono_class_get_fields (klass, &iter))) {
9598 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9600 if (!strcmp (fname, mono_field_get_name (field))) {
9607 if (match_index == -1)
9608 klass = klass->parent;
9613 if(match_index == -1) {
9617 /* Get back original class instance */
9618 klass = mono_class_from_mono_type (type->type);
9620 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9621 exc = mono_get_exception_argument ("fieldName", tmp);
9624 mono_raise_exception ((MonoException*)exc);
9627 info = mono_marshal_load_type_info (klass);
9628 return info->fields [match_index].offset;
9632 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9634 #ifdef PLATFORM_WIN32
9637 tres = mono_string_to_utf8 (string);
9641 len = strlen (tres) + 1;
9642 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
9643 memcpy (ret, tres, len);
9648 return mono_string_to_utf8 (string);
9653 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9655 MONO_ARCH_SAVE_REGS;
9660 #ifdef PLATFORM_WIN32
9661 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
9662 ((mono_string_length (string) + 1) * 2);
9664 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9666 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9667 res [mono_string_length (string)] = 0;
9673 mono_struct_delete_old (MonoClass *klass, char *ptr)
9675 MonoMarshalType *info;
9678 info = mono_marshal_load_type_info (klass);
9680 for (i = 0; i < info->num_fields; i++) {
9681 MonoMarshalNative ntype;
9682 MonoMarshalConv conv;
9683 MonoType *ftype = info->fields [i].field->type;
9686 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9689 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9690 klass->unicode, &conv);
9692 cpos = ptr + info->fields [i].offset;
9695 case MONO_MARSHAL_CONV_NONE:
9696 if (MONO_TYPE_ISSTRUCT (ftype)) {
9697 mono_struct_delete_old (ftype->data.klass, cpos);
9701 case MONO_MARSHAL_CONV_STR_LPWSTR:
9702 /* We assume this field points inside a MonoString */
9704 case MONO_MARSHAL_CONV_STR_LPTSTR:
9705 #ifdef PLATFORM_WIN32
9706 /* We assume this field points inside a MonoString
9710 case MONO_MARSHAL_CONV_STR_LPSTR:
9711 case MONO_MARSHAL_CONV_STR_BSTR:
9712 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9713 case MONO_MARSHAL_CONV_STR_TBSTR:
9714 mono_marshal_free (*(gpointer *)cpos);
9724 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9728 MONO_ARCH_SAVE_REGS;
9730 MONO_CHECK_ARG_NULL (src);
9731 MONO_CHECK_ARG_NULL (type);
9733 klass = mono_class_from_mono_type (type->type);
9735 mono_struct_delete_old (klass, (char *)src);
9739 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9743 MONO_ARCH_SAVE_REGS;
9745 if ((gulong)size == 0)
9746 /* This returns a valid pointer for size 0 on MS.NET */
9749 #ifdef PLATFORM_WIN32
9750 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
9752 res = g_try_malloc ((gulong)size);
9755 mono_gc_out_of_memory ((gulong)size);
9761 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
9766 mono_gc_out_of_memory ((gulong)size);
9770 #ifdef PLATFORM_WIN32
9771 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
9773 res = g_try_realloc (ptr, (gulong)size);
9776 mono_gc_out_of_memory ((gulong)size);
9782 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9784 MONO_ARCH_SAVE_REGS;
9786 #ifdef PLATFORM_WIN32
9794 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9796 MONO_ARCH_SAVE_REGS;
9798 #ifdef PLATFORM_WIN32
9799 return CoTaskMemAlloc (size);
9801 return g_try_malloc ((gulong)size);
9806 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9808 MONO_ARCH_SAVE_REGS;
9810 #ifdef PLATFORM_WIN32
9811 CoTaskMemFree (ptr);
9818 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
9820 MONO_ARCH_SAVE_REGS;
9822 #ifdef PLATFORM_WIN32
9823 return CoTaskMemRealloc (ptr, size);
9825 return g_try_realloc (ptr, (gulong)size);
9830 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9832 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9836 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9838 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9842 * mono_marshal_is_loading_type_info:
9844 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
9848 mono_marshal_is_loading_type_info (MonoClass *klass)
9850 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
9852 return g_slist_find (loads_list, klass) != NULL;
9856 * mono_marshal_load_type_info:
9858 * Initialize klass->marshal_info using information from metadata. This function can
9859 * recursively call itself, and the caller is responsible to avoid that by calling
9860 * mono_marshal_is_loading_type_info () beforehand.
9862 * LOCKING: Acquires the loader lock.
9865 mono_marshal_load_type_info (MonoClass* klass)
9868 guint32 native_size = 0, min_align = 1;
9869 MonoMarshalType *info;
9870 MonoClassField* field;
9875 g_assert (klass != NULL);
9877 if (klass->marshal_info)
9878 return klass->marshal_info;
9881 mono_class_init (klass);
9883 mono_loader_lock ();
9885 if (klass->marshal_info) {
9886 mono_loader_unlock ();
9887 return klass->marshal_info;
9891 * This function can recursively call itself, so we keep the list of classes which are
9892 * under initialization in a TLS list.
9894 g_assert (!mono_marshal_is_loading_type_info (klass));
9895 loads_list = TlsGetValue (load_type_info_tls_id);
9896 loads_list = g_slist_prepend (loads_list, klass);
9897 TlsSetValue (load_type_info_tls_id, loads_list);
9900 while ((field = mono_class_get_fields (klass, &iter))) {
9901 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9903 if (mono_field_is_deleted (field))
9908 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
9910 /* The mempool is protected by the loader lock */
9911 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
9912 info->num_fields = count;
9914 /* Try to find a size for this type in metadata */
9915 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
9917 if (klass->parent) {
9918 int parent_size = mono_class_native_size (klass->parent, NULL);
9920 /* Add parent size to real size */
9921 native_size += parent_size;
9922 info->native_size = parent_size;
9927 while ((field = mono_class_get_fields (klass, &iter))) {
9931 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9934 if (mono_field_is_deleted (field))
9936 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
9937 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
9938 NULL, NULL, &info->fields [j].mspec);
9940 info->fields [j].field = field;
9942 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
9943 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
9944 /* This field is a hack inserted by MCS to empty structures */
9949 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
9950 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
9951 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9952 &align, TRUE, klass->unicode);
9953 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9954 min_align = MAX (align, min_align);
9955 info->fields [j].offset = info->native_size;
9956 info->fields [j].offset += align - 1;
9957 info->fields [j].offset &= ~(align - 1);
9958 info->native_size = info->fields [j].offset + size;
9960 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
9961 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9962 &align, TRUE, klass->unicode);
9963 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9964 min_align = MAX (align, min_align);
9965 info->fields [j].offset = field->offset - sizeof (MonoObject);
9966 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
9972 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9973 info->native_size = MAX (native_size, info->native_size);
9976 if (info->native_size & (min_align - 1)) {
9977 info->native_size += min_align - 1;
9978 info->native_size &= ~(min_align - 1);
9981 info->min_align = min_align;
9983 /* Update the class's blittable info, if the layouts don't match */
9984 if (info->native_size != mono_class_value_size (klass, NULL))
9985 klass->blittable = FALSE;
9987 /* If this is an array type, ensure that we have element info */
9988 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
9989 mono_marshal_load_type_info (klass->element_class);
9992 loads_list = TlsGetValue (load_type_info_tls_id);
9993 loads_list = g_slist_remove (loads_list, klass);
9994 TlsSetValue (load_type_info_tls_id, loads_list);
9996 /*We do double-checking locking on marshal_info */
9997 mono_memory_barrier ();
9999 klass->marshal_info = info;
10001 mono_loader_unlock ();
10003 return klass->marshal_info;
10007 * mono_class_native_size:
10010 * Returns: the native size of an object instance (when marshaled
10011 * to unmanaged code)
10014 mono_class_native_size (MonoClass *klass, guint32 *align)
10016 if (!klass->marshal_info) {
10017 if (mono_marshal_is_loading_type_info (klass)) {
10022 mono_marshal_load_type_info (klass);
10027 *align = klass->marshal_info->min_align;
10029 return klass->marshal_info->native_size;
10032 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10033 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10034 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10035 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10038 * mono_type_native_stack_size:
10039 * @t: the type to return the size it uses on the stack
10041 * Returns: the number of bytes required to hold an instance of this
10042 * type on the native stack
10045 mono_type_native_stack_size (MonoType *t, guint32 *align)
10049 g_assert (t != NULL);
10055 *align = sizeof (gpointer);
10056 return sizeof (gpointer);
10060 case MONO_TYPE_BOOLEAN:
10061 case MONO_TYPE_CHAR:
10072 case MONO_TYPE_STRING:
10073 case MONO_TYPE_OBJECT:
10074 case MONO_TYPE_CLASS:
10075 case MONO_TYPE_SZARRAY:
10076 case MONO_TYPE_PTR:
10077 case MONO_TYPE_FNPTR:
10078 case MONO_TYPE_ARRAY:
10079 *align = sizeof (gpointer);
10080 return sizeof (gpointer);
10085 *align = ALIGNMENT (gdouble);
10089 *align = ALIGNMENT (glong);
10091 case MONO_TYPE_GENERICINST:
10092 if (!mono_type_generic_inst_is_valuetype (t)) {
10093 *align = sizeof (gpointer);
10094 return sizeof (gpointer);
10097 case MONO_TYPE_TYPEDBYREF:
10098 case MONO_TYPE_VALUETYPE: {
10100 MonoClass *klass = mono_class_from_mono_type (t);
10102 if (klass->enumtype)
10103 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10105 size = mono_class_native_size (klass, align);
10106 *align = *align + 3;
10116 g_error ("type 0x%02x unknown", t->type);
10122 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10123 gboolean as_field, gboolean unicode)
10125 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10128 switch (native_type) {
10129 case MONO_NATIVE_BOOLEAN:
10132 case MONO_NATIVE_I1:
10133 case MONO_NATIVE_U1:
10136 case MONO_NATIVE_I2:
10137 case MONO_NATIVE_U2:
10138 case MONO_NATIVE_VARIANTBOOL:
10141 case MONO_NATIVE_I4:
10142 case MONO_NATIVE_U4:
10143 case MONO_NATIVE_ERROR:
10146 case MONO_NATIVE_I8:
10147 case MONO_NATIVE_U8:
10148 *align = ALIGNMENT(guint64);
10150 case MONO_NATIVE_R4:
10153 case MONO_NATIVE_R8:
10154 *align = ALIGNMENT(double);
10156 case MONO_NATIVE_INT:
10157 case MONO_NATIVE_UINT:
10158 case MONO_NATIVE_LPSTR:
10159 case MONO_NATIVE_LPWSTR:
10160 case MONO_NATIVE_LPTSTR:
10161 case MONO_NATIVE_BSTR:
10162 case MONO_NATIVE_ANSIBSTR:
10163 case MONO_NATIVE_TBSTR:
10164 case MONO_NATIVE_LPARRAY:
10165 case MONO_NATIVE_SAFEARRAY:
10166 case MONO_NATIVE_IUNKNOWN:
10167 case MONO_NATIVE_IDISPATCH:
10168 case MONO_NATIVE_INTERFACE:
10169 case MONO_NATIVE_ASANY:
10170 case MONO_NATIVE_FUNC:
10171 case MONO_NATIVE_LPSTRUCT:
10172 *align = ALIGNMENT(gpointer);
10173 return sizeof (gpointer);
10174 case MONO_NATIVE_STRUCT:
10175 klass = mono_class_from_mono_type (type);
10176 if (klass == mono_defaults.object_class &&
10177 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10181 return mono_class_native_size (klass, align);
10182 case MONO_NATIVE_BYVALTSTR: {
10183 int esize = unicode ? 2: 1;
10186 return mspec->data.array_data.num_elem * esize;
10188 case MONO_NATIVE_BYVALARRAY: {
10189 // FIXME: Have to consider ArraySubType
10191 klass = mono_class_from_mono_type (type);
10192 if (klass->element_class == mono_defaults.char_class) {
10193 esize = unicode ? 2 : 1;
10196 esize = mono_class_native_size (klass->element_class, align);
10199 return mspec->data.array_data.num_elem * esize;
10201 case MONO_NATIVE_CUSTOM:
10202 *align = sizeof (gpointer);
10203 return sizeof (gpointer);
10205 case MONO_NATIVE_CURRENCY:
10206 case MONO_NATIVE_VBBYREFSTR:
10208 g_error ("native type %02x not implemented", native_type);
10211 g_assert_not_reached ();
10216 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10224 t = &o->vtable->klass->byval_arg;
10228 case MONO_TYPE_PTR:
10231 case MONO_TYPE_BOOLEAN:
10234 case MONO_TYPE_CHAR:
10239 return mono_object_unbox (o);
10241 case MONO_TYPE_STRING:
10242 switch (string_encoding) {
10243 case MONO_NATIVE_LPWSTR:
10244 return mono_string_to_utf16 ((MonoString*)o);
10246 case MONO_NATIVE_LPSTR:
10247 return mono_string_to_lpstr ((MonoString*)o);
10250 g_warning ("marshaling conversion %d not implemented", string_encoding);
10251 g_assert_not_reached ();
10254 case MONO_TYPE_CLASS:
10255 case MONO_TYPE_VALUETYPE: {
10256 MonoMethod *method;
10259 MonoBoolean delete_old = FALSE;
10261 klass = t->data.klass;
10263 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10266 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10267 klass->blittable || klass->enumtype))
10268 return mono_object_unbox (o);
10270 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10272 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10273 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10277 pa [2] = &delete_old;
10279 mono_runtime_invoke (method, NULL, pa, NULL);
10286 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10292 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10300 t = &o->vtable->klass->byval_arg;
10302 case MONO_TYPE_STRING:
10303 switch (string_encoding) {
10304 case MONO_NATIVE_LPWSTR:
10305 case MONO_NATIVE_LPSTR:
10306 mono_marshal_free (ptr);
10309 g_warning ("marshaling conversion %d not implemented", string_encoding);
10310 g_assert_not_reached ();
10313 case MONO_TYPE_CLASS:
10314 case MONO_TYPE_VALUETYPE: {
10315 klass = t->data.klass;
10317 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10318 klass->blittable || klass->enumtype))
10321 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10322 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10328 mono_runtime_invoke (method, NULL, pa, NULL);
10331 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10332 mono_struct_delete_old (klass, ptr);
10335 mono_marshal_free (ptr);
10344 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10346 MonoMethodSignature *sig, *csig;
10347 MonoMethodBuilder *mb;
10351 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10352 mb->method->slot = -1;
10354 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10355 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10357 sig = mono_method_signature (method);
10358 csig = signature_dup (method->klass->image, sig);
10359 csig->generic_param_count = 0;
10361 mono_mb_emit_ldarg (mb, 0);
10362 for (i = 0; i < csig->param_count; i++)
10363 mono_mb_emit_ldarg (mb, i + 1);
10364 mono_mb_emit_managed_call (mb, method, NULL);
10365 mono_mb_emit_byte (mb, CEE_RET);
10367 /* We can corlib internal methods */
10368 mb->skip_visibility = TRUE;
10370 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10378 * The mono_win32_compat_* functions are implementations of inline
10379 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10380 * although not exported by kernel32.
10382 * We map the appropiate kernel32 entries to these functions using
10383 * dllmaps declared in the global etc/mono/config.
10387 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10389 if (!dest || !source)
10392 memcpy (dest, source, length);
10396 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10398 memset (dest, fill, length);
10402 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10404 if (!dest || !source)
10407 memmove (dest, source, length);
10411 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10413 memset (dest, 0, length);
10417 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10422 for (i = 0; i < len; ++i)
10426 g_assert (i < len);
10429 while (byte && !(byte & 1))
10431 g_assert (byte == 1);
10434 *bitmask = buf [i];
10438 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10440 MonoMethodBuilder *mb;
10441 MonoMethodSignature *sig, *csig;
10442 MonoExceptionClause *clause;
10447 int i, param_count, sig_size, pos_leave;
10451 klass = method->klass;
10452 image = method->klass->image;
10453 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10455 if ((res = mono_marshal_find_in_cache (cache, method)))
10458 sig = mono_method_signature (method);
10459 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10461 /* add "this" and exception param */
10462 param_count = sig->param_count + sig->hasthis + 1;
10464 /* dup & extend signature */
10465 csig = mono_metadata_signature_alloc (image, param_count);
10466 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
10467 memcpy (csig, sig, sig_size);
10468 csig->param_count = param_count;
10471 csig->call_convention = MONO_CALL_DEFAULT;
10473 if (sig->hasthis) {
10475 csig->params [0] = &klass->byval_arg;
10476 /* move params up by one */
10477 for (i = 0; i < sig->param_count; i++)
10478 csig->params [i + 1] = sig->params [i];
10481 /* setup exception param as byref+[out] */
10482 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10483 &mono_defaults.exception_class->byval_arg);
10484 csig->params [param_count - 1]->byref = 1;
10485 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10487 /* convert struct return to object */
10488 if (MONO_TYPE_ISSTRUCT (sig->ret))
10489 csig->ret = &mono_defaults.object_class->byval_arg;
10491 /* local 0 (temp for exception object) */
10492 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10494 /* local 1 (temp for result) */
10495 if (!MONO_TYPE_IS_VOID (sig->ret))
10496 mono_mb_add_local (mb, sig->ret);
10498 /* clear exception arg */
10499 mono_mb_emit_ldarg (mb, param_count - 1);
10500 mono_mb_emit_byte (mb, CEE_LDNULL);
10501 mono_mb_emit_byte (mb, CEE_STIND_REF);
10504 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10505 clause->try_offset = mono_mb_get_label (mb);
10507 /* push method's args */
10508 for (i = 0; i < param_count - 1; i++) {
10512 mono_mb_emit_ldarg (mb, i);
10514 /* get the byval type of the param */
10515 klass = mono_class_from_mono_type (csig->params [i]);
10516 type = &klass->byval_arg;
10518 /* unbox struct args */
10519 if (MONO_TYPE_ISSTRUCT (type)) {
10520 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10522 /* byref args & and the "this" arg must remain a ptr.
10523 Otherwise make a copy of the value type */
10524 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10525 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10527 csig->params [i] = &mono_defaults.object_class->byval_arg;
10532 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10533 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10535 mono_mb_emit_op (mb, CEE_CALL, method);
10537 /* save result at local 1 */
10538 if (!MONO_TYPE_IS_VOID (sig->ret))
10539 mono_mb_emit_stloc (mb, 1);
10541 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
10544 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
10545 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10546 clause->data.catch_class = mono_defaults.object_class;
10548 clause->handler_offset = mono_mb_get_label (mb);
10550 /* store exception at local 0 */
10551 mono_mb_emit_stloc (mb, 0);
10552 mono_mb_emit_ldarg (mb, param_count - 1);
10553 mono_mb_emit_ldloc (mb, 0);
10554 mono_mb_emit_byte (mb, CEE_STIND_REF);
10555 mono_mb_emit_branch (mb, CEE_LEAVE);
10557 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
10559 mono_mb_set_clauses (mb, 1, clause);
10561 mono_mb_patch_branch (mb, pos_leave);
10564 if (!MONO_TYPE_IS_VOID (sig->ret)) {
10565 mono_mb_emit_ldloc (mb, 1);
10567 /* box the return value */
10568 if (MONO_TYPE_ISSTRUCT (sig->ret))
10569 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
10572 mono_mb_emit_byte (mb, CEE_RET);
10574 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
10581 * mono_marshal_free_dynamic_wrappers:
10583 * Free wrappers of the dynamic method METHOD.
10586 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
10588 g_assert (method->dynamic);
10590 mono_marshal_lock ();
10592 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10593 * they could be shared with other methods ?
10595 if (method->klass->image->runtime_invoke_direct_cache)
10596 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10597 mono_marshal_unlock ();
10601 * mono_marshal_free_inflated_wrappers:
10603 * Free wrappers of the inflated method METHOD.
10607 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
10609 SignatureMethodPair *pair = (SignatureMethodPair*)key;
10610 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
10612 return mono_metadata_signature_equal (pair->sig, sig);
10616 mono_marshal_free_inflated_wrappers (MonoMethod *method)
10618 MonoMethodSignature *sig = method->signature;
10620 g_assert (method->is_inflated);
10622 /* Ignore calls occuring late during cleanup. */
10623 if (!marshal_mutex_initialized)
10626 mono_marshal_lock ();
10628 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10629 * they could be shared with other methods ?
10633 * indexed by MonoMethodSignature
10635 /* FIXME: This could remove unrelated wrappers as well */
10636 if (sig && method->klass->image->delegate_begin_invoke_cache)
10637 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
10638 if (sig && method->klass->image->delegate_end_invoke_cache)
10639 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
10640 if (sig && method->klass->image->delegate_invoke_cache)
10641 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
10642 if (sig && method->klass->image->runtime_invoke_cache)
10643 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
10646 * indexed by SignatureMethodPair
10648 if (sig && method->klass->image->delegate_abstract_invoke_cache)
10649 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
10650 signature_method_pair_matches_signature, (gpointer)sig);
10653 * indexed by MonoMethod pointers
10655 if (method->klass->image->runtime_invoke_direct_cache)
10656 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10657 if (method->klass->image->managed_wrapper_cache)
10658 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
10659 if (method->klass->image->native_wrapper_cache)
10660 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
10661 if (method->klass->image->remoting_invoke_cache)
10662 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
10663 if (method->klass->image->synchronized_cache)
10664 g_hash_table_remove (method->klass->image->synchronized_cache, method);
10665 if (method->klass->image->unbox_wrapper_cache)
10666 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
10667 if (method->klass->image->cominterop_invoke_cache)
10668 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
10669 if (method->klass->image->cominterop_wrapper_cache)
10670 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
10671 if (method->klass->image->thunk_invoke_cache)
10672 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
10674 mono_marshal_unlock ();