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
3914 klass = ((MonoDynamicImage*)image)->wrappers_type;
3916 klass = mono_class_get (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1));
3923 * generates IL code for the runtime invoke function
3924 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3926 * we also catch exceptions if exc != null
3927 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3928 * it means that the compiled code for METHOD does not have to be looked up
3929 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3930 * its METHOD argument.
3933 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3935 MonoMethodSignature *sig, *csig, *callsig;
3936 MonoExceptionClause *clause;
3937 MonoMethodBuilder *mb;
3938 GHashTable *cache = NULL;
3939 MonoClass *target_klass;
3940 MonoMethod *res = NULL;
3941 static MonoString *string_dummy = NULL;
3942 static MonoMethodSignature *cctor_signature = NULL;
3943 static MonoMethodSignature *finalize_signature = NULL;
3946 gboolean need_direct_wrapper = FALSE;
3947 int *tmp_nullable_locals;
3951 if (!cctor_signature) {
3952 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3953 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3955 if (!finalize_signature) {
3956 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3957 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3958 finalize_signature->hasthis = 1;
3962 need_direct_wrapper = TRUE;
3965 * Use a separate cache indexed by methods to speed things up and to avoid the
3966 * boundless mempool growth caused by the signature_dup stuff below.
3969 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3971 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3972 res = mono_marshal_find_in_cache (cache, method);
3976 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3977 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3979 * Array Get/Set/Address methods. The JIT implements them using inline code
3980 * so we need to create an invoke wrapper which calls the method directly.
3982 need_direct_wrapper = TRUE;
3985 if (method->string_ctor) {
3986 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3988 callsig = add_string_ctor_signature (method);
3989 /* Can't share this as we push a string as this */
3990 need_direct_wrapper = TRUE;
3992 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
3994 * Valuetype methods receive a managed pointer as the this argument.
3995 * Create a new signature to reflect this.
3997 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
3999 if (method->dynamic)
4000 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4002 callsig = mono_method_signature (method);
4007 /* Vtypes/nullables/Byrefs cause too many problems */
4008 for (i = 0; i < callsig->param_count; ++i) {
4009 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
4010 need_direct_wrapper = TRUE;
4015 * We try to share runtime invoke wrappers between different methods but have to
4016 * be careful about methods whose klass has a type cctor, since putting the wrapper
4017 * into that klass would mean that calling a method of klass A might invoke the
4018 * type initializer of class B, or throw an exception if the type initializer
4019 * was called before and failed. See #349621 for an example.
4020 * We avoid that for mscorlib methods by putting every wrapper into the object class.
4022 if (method->klass->image == mono_defaults.corlib)
4023 target_klass = mono_defaults.object_class;
4025 /* Try to share wrappers for non-corlib methods with simple signatures */
4026 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4027 callsig = cctor_signature;
4028 target_klass = mono_defaults.object_class;
4029 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4030 callsig = finalize_signature;
4031 target_klass = mono_defaults.object_class;
4033 // FIXME: This breaks too many things
4035 if (mono_class_get_cctor (method->klass))
4036 need_direct_wrapper = TRUE;
4039 target_klass = get_wrapper_target_class (method->klass->image);
4043 if (need_direct_wrapper) {
4044 /* Already searched at the start */
4046 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4048 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4049 (GHashFunc)mono_signature_hash,
4050 (GCompareFunc)runtime_invoke_signature_equal);
4052 /* from mono_marshal_find_in_cache */
4053 mono_marshal_lock ();
4054 res = g_hash_table_lookup (cache, callsig);
4055 mono_marshal_unlock ();
4062 // FIXME: When to free callsig ?
4065 /* to make it work with our special string constructors */
4066 if (!string_dummy) {
4067 MONO_GC_REGISTER_ROOT (string_dummy);
4068 string_dummy = mono_string_new_wrapper ("dummy");
4071 sig = mono_method_signature (method);
4073 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4075 csig->ret = &mono_defaults.object_class->byval_arg;
4076 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4077 csig->params [0] = callsig->params [0];
4079 csig->params [0] = &mono_defaults.object_class->byval_arg;
4080 csig->params [1] = &mono_defaults.int_class->byval_arg;
4081 csig->params [2] = &mono_defaults.int_class->byval_arg;
4082 csig->params [3] = &mono_defaults.int_class->byval_arg;
4084 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4085 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4088 /* allocate local 0 (object) tmp */
4089 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4090 /* allocate local 1 (object) exc */
4091 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4093 /* cond set *exc to null */
4094 mono_mb_emit_byte (mb, CEE_LDARG_2);
4095 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4096 mono_mb_emit_byte (mb, 3);
4097 mono_mb_emit_byte (mb, CEE_LDARG_2);
4098 mono_mb_emit_byte (mb, CEE_LDNULL);
4099 mono_mb_emit_byte (mb, CEE_STIND_REF);
4101 emit_thread_force_interrupt_checkpoint (mb);
4104 g_assert (sig->hasthis);
4105 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4109 if (method->string_ctor) {
4110 mono_mb_emit_ptr (mb, string_dummy);
4112 mono_mb_emit_ldarg (mb, 0);
4116 tmp_nullable_locals = g_new0 (int, sig->param_count);
4118 for (i = 0; i < sig->param_count; i++) {
4119 MonoType *t = sig->params [i];
4122 mono_mb_emit_ldarg (mb, 1);
4124 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4125 mono_mb_emit_byte (mb, CEE_ADD);
4129 mono_mb_emit_byte (mb, CEE_LDIND_I);
4130 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4131 * So to make this work we unbox it to a local variablee and push a reference to that.
4133 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4134 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4136 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4137 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4138 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4143 type = sig->params [i]->type;
4147 case MONO_TYPE_BOOLEAN:
4151 case MONO_TYPE_CHAR:
4160 mono_mb_emit_byte (mb, CEE_LDIND_I);
4161 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4163 case MONO_TYPE_STRING:
4164 case MONO_TYPE_CLASS:
4165 case MONO_TYPE_ARRAY:
4167 case MONO_TYPE_SZARRAY:
4168 case MONO_TYPE_OBJECT:
4169 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4171 case MONO_TYPE_GENERICINST:
4172 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4173 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4178 case MONO_TYPE_VALUETYPE:
4179 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4180 type = mono_class_enum_basetype (t->data.klass)->type;
4183 mono_mb_emit_byte (mb, CEE_LDIND_I);
4184 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4185 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4186 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4187 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4189 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4193 g_assert_not_reached ();
4198 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4199 } else if (need_direct_wrapper) {
4200 mono_mb_emit_op (mb, CEE_CALL, method);
4202 mono_mb_emit_ldarg (mb, 3);
4203 mono_mb_emit_calli (mb, callsig);
4206 if (sig->ret->byref) {
4208 g_assert_not_reached ();
4212 switch (sig->ret->type) {
4213 case MONO_TYPE_VOID:
4214 if (!method->string_ctor)
4215 mono_mb_emit_byte (mb, CEE_LDNULL);
4217 case MONO_TYPE_BOOLEAN:
4218 case MONO_TYPE_CHAR:
4231 case MONO_TYPE_VALUETYPE:
4232 case MONO_TYPE_TYPEDBYREF:
4233 case MONO_TYPE_GENERICINST:
4234 /* box value types */
4235 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4237 case MONO_TYPE_STRING:
4238 case MONO_TYPE_CLASS:
4239 case MONO_TYPE_ARRAY:
4240 case MONO_TYPE_SZARRAY:
4241 case MONO_TYPE_OBJECT:
4245 /* The result is an IntPtr */
4246 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4249 g_assert_not_reached ();
4252 mono_mb_emit_stloc (mb, 0);
4254 /* Convert back nullable-byref arguments */
4255 for (i = 0; i < sig->param_count; i++) {
4256 MonoType *t = sig->params [i];
4259 * Box the result and put it back into the array, the caller will have
4260 * to obtain it from there.
4262 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4263 mono_mb_emit_ldarg (mb, 1);
4264 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4265 mono_mb_emit_byte (mb, CEE_ADD);
4267 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4268 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4270 mono_mb_emit_byte (mb, CEE_STIND_REF);
4274 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4276 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4277 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4278 clause->try_len = mono_mb_get_label (mb);
4281 clause->data.filter_offset = mono_mb_get_label (mb);
4283 mono_mb_emit_byte (mb, CEE_POP);
4284 mono_mb_emit_byte (mb, CEE_LDARG_2);
4285 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4286 mono_mb_emit_byte (mb, CEE_PREFIX1);
4287 mono_mb_emit_byte (mb, CEE_CGT_UN);
4288 mono_mb_emit_byte (mb, CEE_PREFIX1);
4289 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4291 clause->handler_offset = mono_mb_get_label (mb);
4294 /* store exception */
4295 mono_mb_emit_stloc (mb, 1);
4297 mono_mb_emit_byte (mb, CEE_LDARG_2);
4298 mono_mb_emit_ldloc (mb, 1);
4299 mono_mb_emit_byte (mb, CEE_STIND_REF);
4301 mono_mb_emit_byte (mb, CEE_LDNULL);
4302 mono_mb_emit_stloc (mb, 0);
4304 /* Check for the abort exception */
4305 mono_mb_emit_ldloc (mb, 1);
4306 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4307 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4309 /* Delay the abort exception */
4310 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4312 mono_mb_patch_short_branch (mb, posna);
4313 mono_mb_emit_branch (mb, CEE_LEAVE);
4315 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4317 mono_mb_set_clauses (mb, 1, clause);
4320 mono_mb_patch_branch (mb, pos);
4321 mono_mb_emit_ldloc (mb, 0);
4322 mono_mb_emit_byte (mb, CEE_RET);
4324 if (need_direct_wrapper) {
4325 mb->skip_visibility = 1;
4326 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4328 /* taken from mono_mb_create_and_cache */
4329 mono_marshal_lock ();
4330 res = g_hash_table_lookup (cache, callsig);
4331 mono_marshal_unlock ();
4333 /* Somebody may have created it before us */
4336 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4338 mono_marshal_lock ();
4339 res = g_hash_table_lookup (cache, callsig);
4342 g_hash_table_insert (cache, callsig, res);
4343 /* Can't insert it into wrapper_hash since the key is a signature */
4344 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4346 mono_free_method (newm);
4348 mono_marshal_unlock ();
4351 /* end mono_mb_create_and_cache */
4360 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4362 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4363 klass->name_space, klass->name);
4365 mono_mb_emit_exception_marshal_directive (mb, msg);
4369 * mono_marshal_get_ldfld_remote_wrapper:
4370 * @klass: The return type
4372 * This method generates a wrapper for calling mono_load_remote_field_new.
4373 * The return type is ignored for now, as mono_load_remote_field_new () always
4374 * returns an object. In the future, to optimize some codepaths, we might
4375 * call a different function that takes a pointer to a valuetype, instead.
4378 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4380 MonoMethodSignature *sig, *csig;
4381 MonoMethodBuilder *mb;
4383 static MonoMethod* cached = NULL;
4385 mono_marshal_lock ();
4387 mono_marshal_unlock ();
4390 mono_marshal_unlock ();
4392 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4394 mb->method->save_lmf = 1;
4396 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4397 sig->params [0] = &mono_defaults.object_class->byval_arg;
4398 sig->params [1] = &mono_defaults.int_class->byval_arg;
4399 sig->params [2] = &mono_defaults.int_class->byval_arg;
4400 sig->ret = &mono_defaults.object_class->byval_arg;
4402 mono_mb_emit_ldarg (mb, 0);
4403 mono_mb_emit_ldarg (mb, 1);
4404 mono_mb_emit_ldarg (mb, 2);
4406 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4407 csig->params [0] = &mono_defaults.object_class->byval_arg;
4408 csig->params [1] = &mono_defaults.int_class->byval_arg;
4409 csig->params [2] = &mono_defaults.int_class->byval_arg;
4410 csig->ret = &mono_defaults.object_class->byval_arg;
4413 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4414 emit_thread_interrupt_checkpoint (mb);
4416 mono_mb_emit_byte (mb, CEE_RET);
4418 mono_marshal_lock ();
4420 mono_marshal_unlock ();
4423 newm = mono_mb_create_method (mb, sig, 4);
4424 mono_marshal_lock ();
4429 mono_marshal_unlock ();
4431 mono_marshal_unlock ();
4432 mono_free_method (newm);
4441 * mono_marshal_get_ldfld_wrapper:
4442 * @type: the type of the field
4444 * This method generates a function which can be use to load a field with type
4445 * @type from an object. The generated function has the following signature:
4446 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4449 mono_marshal_get_ldfld_wrapper (MonoType *type)
4451 MonoMethodSignature *sig;
4452 MonoMethodBuilder *mb;
4457 int t, pos0, pos1 = 0;
4459 type = mono_type_get_underlying_type (type);
4464 if (type->type == MONO_TYPE_SZARRAY) {
4465 klass = mono_defaults.array_class;
4466 } else if (type->type == MONO_TYPE_VALUETYPE) {
4467 klass = type->data.klass;
4468 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4469 klass = mono_defaults.object_class;
4470 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4471 klass = mono_defaults.int_class;
4472 } else if (t == MONO_TYPE_GENERICINST) {
4473 if (mono_type_generic_inst_is_valuetype (type))
4474 klass = mono_class_from_mono_type (type);
4476 klass = mono_defaults.object_class;
4478 klass = mono_class_from_mono_type (type);
4481 klass = mono_defaults.int_class;
4484 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4485 if ((res = mono_marshal_find_in_cache (cache, klass)))
4488 /* we add the %p pointer value of klass because class names are not unique */
4489 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4490 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4493 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4494 sig->params [0] = &mono_defaults.object_class->byval_arg;
4495 sig->params [1] = &mono_defaults.int_class->byval_arg;
4496 sig->params [2] = &mono_defaults.int_class->byval_arg;
4497 sig->params [3] = &mono_defaults.int_class->byval_arg;
4498 sig->ret = &klass->byval_arg;
4500 mono_mb_emit_ldarg (mb, 0);
4501 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4503 mono_mb_emit_ldarg (mb, 0);
4504 mono_mb_emit_ldarg (mb, 1);
4505 mono_mb_emit_ldarg (mb, 2);
4507 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4510 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4511 csig->params [0] = &mono_defaults.object_class->byval_arg;
4512 csig->params [1] = &mono_defaults.int_class->byval_arg;
4513 csig->params [2] = &mono_defaults.int_class->byval_arg;
4514 csig->ret = &klass->this_arg;
4517 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4518 emit_thread_interrupt_checkpoint (mb);
4521 if (klass->valuetype) {
4522 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4523 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4525 mono_mb_emit_byte (mb, CEE_RET);
4529 mono_mb_patch_branch (mb, pos0);
4531 mono_mb_emit_ldarg (mb, 0);
4532 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4533 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4534 mono_mb_emit_ldarg (mb, 3);
4535 mono_mb_emit_byte (mb, CEE_ADD);
4537 if (klass->valuetype)
4538 mono_mb_patch_branch (mb, pos1);
4543 case MONO_TYPE_BOOLEAN:
4544 case MONO_TYPE_CHAR:
4553 case MONO_TYPE_ARRAY:
4554 case MONO_TYPE_SZARRAY:
4555 case MONO_TYPE_OBJECT:
4556 case MONO_TYPE_CLASS:
4557 case MONO_TYPE_STRING:
4561 case MONO_TYPE_FNPTR:
4562 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4564 case MONO_TYPE_VALUETYPE:
4565 g_assert (!klass->enumtype);
4566 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4568 case MONO_TYPE_GENERICINST:
4569 if (mono_type_generic_inst_is_valuetype (type)) {
4570 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4572 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4576 g_warning ("type %x not implemented", type->type);
4577 g_assert_not_reached ();
4580 mono_mb_emit_byte (mb, CEE_RET);
4582 res = mono_mb_create_and_cache (cache, klass,
4583 mb, sig, sig->param_count + 16);
4590 * mono_marshal_get_ldflda_wrapper:
4591 * @type: the type of the field
4593 * This method generates a function which can be used to load a field address
4594 * from an object. The generated function has the following signature:
4595 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4598 mono_marshal_get_ldflda_wrapper (MonoType *type)
4600 MonoMethodSignature *sig;
4601 MonoMethodBuilder *mb;
4606 int t, pos0, pos1, pos2, pos3;
4608 type = mono_type_get_underlying_type (type);
4612 if (type->type == MONO_TYPE_SZARRAY) {
4613 klass = mono_defaults.array_class;
4614 } else if (type->type == MONO_TYPE_VALUETYPE) {
4615 klass = type->data.klass;
4616 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4617 t == MONO_TYPE_CLASS) {
4618 klass = mono_defaults.object_class;
4619 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4620 klass = mono_defaults.int_class;
4621 } else if (t == MONO_TYPE_GENERICINST) {
4622 if (mono_type_generic_inst_is_valuetype (type))
4623 klass = mono_class_from_mono_type (type);
4625 klass = mono_defaults.object_class;
4627 klass = mono_class_from_mono_type (type);
4630 klass = mono_defaults.int_class;
4633 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4634 if ((res = mono_marshal_find_in_cache (cache, klass)))
4637 /* we add the %p pointer value of klass because class names are not unique */
4638 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4639 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4642 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4643 sig->params [0] = &mono_defaults.object_class->byval_arg;
4644 sig->params [1] = &mono_defaults.int_class->byval_arg;
4645 sig->params [2] = &mono_defaults.int_class->byval_arg;
4646 sig->params [3] = &mono_defaults.int_class->byval_arg;
4647 sig->ret = &mono_defaults.int_class->byval_arg;
4649 /* if typeof (this) != transparent_proxy goto pos0 */
4650 mono_mb_emit_ldarg (mb, 0);
4651 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4653 /* if same_appdomain goto pos1 */
4654 mono_mb_emit_ldarg (mb, 0);
4655 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4657 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4659 /* same app domain */
4660 mono_mb_patch_branch (mb, pos1);
4662 /* if typeof (this) != contextbound goto pos2 */
4663 mono_mb_emit_ldarg (mb, 0);
4664 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4666 /* if this->rp->context == mono_context_get goto pos3 */
4667 mono_mb_emit_ldarg (mb, 0);
4668 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4669 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4670 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4671 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4672 mono_mb_emit_icall (mb, mono_context_get);
4673 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4675 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4677 mono_mb_patch_branch (mb, pos2);
4678 mono_mb_patch_branch (mb, pos3);
4680 /* return the address of the field from this->rp->unwrapped_server */
4681 mono_mb_emit_ldarg (mb, 0);
4682 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4683 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4684 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4685 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4686 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4687 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4688 mono_mb_emit_ldarg (mb, 3);
4689 mono_mb_emit_byte (mb, CEE_ADD);
4690 mono_mb_emit_byte (mb, CEE_RET);
4692 /* not a proxy: return the address of the field directly */
4693 mono_mb_patch_branch (mb, pos0);
4695 mono_mb_emit_ldarg (mb, 0);
4696 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4697 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4698 mono_mb_emit_ldarg (mb, 3);
4699 mono_mb_emit_byte (mb, CEE_ADD);
4701 mono_mb_emit_byte (mb, CEE_RET);
4703 res = mono_mb_create_and_cache (cache, klass,
4704 mb, sig, sig->param_count + 16);
4711 * mono_marshal_get_stfld_remote_wrapper:
4712 * klass: The type of the field
4714 * This function generates a wrapper for calling mono_store_remote_field_new
4715 * with the appropriate signature.
4716 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4717 * klass argument anymore.
4720 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4722 MonoMethodSignature *sig, *csig;
4723 MonoMethodBuilder *mb;
4725 static MonoMethod *cached = NULL;
4727 mono_marshal_lock ();
4729 mono_marshal_unlock ();
4732 mono_marshal_unlock ();
4734 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4736 mb->method->save_lmf = 1;
4738 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4739 sig->params [0] = &mono_defaults.object_class->byval_arg;
4740 sig->params [1] = &mono_defaults.int_class->byval_arg;
4741 sig->params [2] = &mono_defaults.int_class->byval_arg;
4742 sig->params [3] = &mono_defaults.object_class->byval_arg;
4743 sig->ret = &mono_defaults.void_class->byval_arg;
4745 mono_mb_emit_ldarg (mb, 0);
4746 mono_mb_emit_ldarg (mb, 1);
4747 mono_mb_emit_ldarg (mb, 2);
4748 mono_mb_emit_ldarg (mb, 3);
4750 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4751 csig->params [0] = &mono_defaults.object_class->byval_arg;
4752 csig->params [1] = &mono_defaults.int_class->byval_arg;
4753 csig->params [2] = &mono_defaults.int_class->byval_arg;
4754 csig->params [3] = &mono_defaults.object_class->byval_arg;
4755 csig->ret = &mono_defaults.void_class->byval_arg;
4758 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4759 emit_thread_interrupt_checkpoint (mb);
4761 mono_mb_emit_byte (mb, CEE_RET);
4763 mono_marshal_lock ();
4765 mono_marshal_unlock ();
4768 newm = mono_mb_create_method (mb, sig, 6);
4769 mono_marshal_lock ();
4774 mono_marshal_unlock ();
4776 mono_marshal_unlock ();
4777 mono_free_method (newm);
4786 * mono_marshal_get_stfld_wrapper:
4787 * @type: the type of the field
4789 * This method generates a function which can be use to store a field with type
4790 * @type. The generated function has the following signature:
4791 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4794 mono_marshal_get_stfld_wrapper (MonoType *type)
4796 MonoMethodSignature *sig;
4797 MonoMethodBuilder *mb;
4804 type = mono_type_get_underlying_type (type);
4808 if (type->type == MONO_TYPE_SZARRAY) {
4809 klass = mono_defaults.array_class;
4810 } else if (type->type == MONO_TYPE_VALUETYPE) {
4811 klass = type->data.klass;
4812 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4813 klass = mono_defaults.object_class;
4814 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4815 klass = mono_defaults.int_class;
4816 } else if (t == MONO_TYPE_GENERICINST) {
4817 if (mono_type_generic_inst_is_valuetype (type))
4818 klass = mono_class_from_mono_type (type);
4820 klass = mono_defaults.object_class;
4822 klass = mono_class_from_mono_type (type);
4825 klass = mono_defaults.int_class;
4828 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4829 if ((res = mono_marshal_find_in_cache (cache, klass)))
4832 /* we add the %p pointer value of klass because class names are not unique */
4833 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4834 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4837 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4838 sig->params [0] = &mono_defaults.object_class->byval_arg;
4839 sig->params [1] = &mono_defaults.int_class->byval_arg;
4840 sig->params [2] = &mono_defaults.int_class->byval_arg;
4841 sig->params [3] = &mono_defaults.int_class->byval_arg;
4842 sig->params [4] = &klass->byval_arg;
4843 sig->ret = &mono_defaults.void_class->byval_arg;
4845 mono_mb_emit_ldarg (mb, 0);
4846 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4848 mono_mb_emit_ldarg (mb, 0);
4849 mono_mb_emit_ldarg (mb, 1);
4850 mono_mb_emit_ldarg (mb, 2);
4851 mono_mb_emit_ldarg (mb, 4);
4852 if (klass->valuetype)
4853 mono_mb_emit_op (mb, CEE_BOX, klass);
4855 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4857 mono_mb_emit_byte (mb, CEE_RET);
4859 mono_mb_patch_branch (mb, pos);
4861 mono_mb_emit_ldarg (mb, 0);
4862 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4863 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4864 mono_mb_emit_ldarg (mb, 3);
4865 mono_mb_emit_byte (mb, CEE_ADD);
4866 mono_mb_emit_ldarg (mb, 4);
4871 case MONO_TYPE_BOOLEAN:
4872 case MONO_TYPE_CHAR:
4881 case MONO_TYPE_ARRAY:
4882 case MONO_TYPE_SZARRAY:
4883 case MONO_TYPE_OBJECT:
4884 case MONO_TYPE_CLASS:
4885 case MONO_TYPE_STRING:
4889 case MONO_TYPE_FNPTR:
4890 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4892 case MONO_TYPE_VALUETYPE:
4893 g_assert (!klass->enumtype);
4894 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4896 case MONO_TYPE_GENERICINST:
4897 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4900 g_warning ("type %x not implemented", type->type);
4901 g_assert_not_reached ();
4904 mono_mb_emit_byte (mb, CEE_RET);
4906 res = mono_mb_create_and_cache (cache, klass,
4907 mb, sig, sig->param_count + 16);
4914 * generates IL code for the icall wrapper (the generated method
4915 * calls the unmanaged code in func)
4918 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4920 MonoMethodSignature *csig;
4921 MonoMethodBuilder *mb;
4925 g_assert (sig->pinvoke);
4927 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4929 mb->method->save_lmf = 1;
4931 /* we copy the signature, so that we can modify it */
4934 mono_mb_emit_byte (mb, CEE_LDARG_0);
4936 for (i = 0; i < sig->param_count; i++)
4937 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4939 mono_mb_emit_native_call (mb, sig, (gpointer) func);
4940 if (check_exceptions)
4941 emit_thread_interrupt_checkpoint (mb);
4942 mono_mb_emit_byte (mb, CEE_RET);
4944 csig = signature_dup (mono_defaults.corlib, sig);
4946 if (csig->call_convention == MONO_CALL_VARARG)
4947 csig->call_convention = 0;
4949 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
4956 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4957 MonoMarshalSpec *spec,
4958 int conv_arg, MonoType **conv_arg_type,
4959 MarshalAction action)
4963 static MonoClass *ICustomMarshaler = NULL;
4964 static MonoMethod *cleanup_native, *cleanup_managed;
4965 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4966 MonoMethod *get_instance;
4967 MonoMethodBuilder *mb = m->mb;
4968 char *exception_msg = NULL;
4972 if (!ICustomMarshaler) {
4973 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4974 g_assert (ICustomMarshaler);
4976 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
4977 g_assert (cleanup_native);
4978 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
4979 g_assert (cleanup_managed);
4980 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
4981 g_assert (marshal_managed_to_native);
4982 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
4983 g_assert (marshal_native_to_managed);
4986 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4987 g_assert (mtype != NULL);
4988 mklass = mono_class_from_mono_type (mtype);
4989 g_assert (mklass != NULL);
4991 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4992 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4994 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4996 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4997 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4998 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4999 (get_sig->params [0]->type != MONO_TYPE_STRING))
5000 get_instance = NULL;
5004 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);
5006 /* Throw exception and emit compensation code if neccesary */
5007 if (exception_msg) {
5009 case MARSHAL_ACTION_CONV_IN:
5010 case MARSHAL_ACTION_CONV_RESULT:
5011 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5012 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5013 mono_mb_emit_byte (mb, CEE_POP);
5015 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5016 g_free (exception_msg);
5019 case MARSHAL_ACTION_PUSH:
5020 mono_mb_emit_byte (mb, CEE_LDNULL);
5028 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5029 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5032 case MARSHAL_ACTION_CONV_IN:
5034 case MONO_TYPE_CLASS:
5035 case MONO_TYPE_OBJECT:
5036 case MONO_TYPE_STRING:
5037 case MONO_TYPE_ARRAY:
5038 case MONO_TYPE_SZARRAY:
5039 case MONO_TYPE_VALUETYPE:
5043 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5044 g_assert_not_reached ();
5048 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5050 mono_mb_emit_byte (mb, CEE_LDNULL);
5051 mono_mb_emit_stloc (mb, conv_arg);
5053 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5056 /* Minic MS.NET behavior */
5057 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5060 /* Check for null */
5061 mono_mb_emit_ldarg (mb, argnum);
5063 mono_mb_emit_byte (mb, CEE_LDIND_I);
5064 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5066 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5068 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5070 mono_mb_emit_ldarg (mb, argnum);
5072 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5074 if (t->type == MONO_TYPE_VALUETYPE) {
5076 * Since we can't determine the type of the argument, we
5077 * will assume the unmanaged function takes a pointer.
5079 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5081 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5084 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5085 mono_mb_emit_stloc (mb, conv_arg);
5087 mono_mb_patch_branch (mb, pos2);
5090 case MARSHAL_ACTION_CONV_OUT:
5091 /* Check for null */
5092 mono_mb_emit_ldloc (mb, conv_arg);
5093 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5096 mono_mb_emit_ldarg (mb, argnum);
5098 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5100 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5102 mono_mb_emit_ldloc (mb, conv_arg);
5103 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5104 mono_mb_emit_byte (mb, CEE_STIND_REF);
5105 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5106 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5108 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5110 mono_mb_emit_ldloc (mb, conv_arg);
5111 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5113 /* We have nowhere to store the result */
5114 mono_mb_emit_byte (mb, CEE_POP);
5117 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5119 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5121 mono_mb_emit_ldloc (mb, conv_arg);
5123 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5125 mono_mb_patch_branch (mb, pos2);
5128 case MARSHAL_ACTION_PUSH:
5130 mono_mb_emit_ldloc_addr (mb, conv_arg);
5132 mono_mb_emit_ldloc (mb, conv_arg);
5135 case MARSHAL_ACTION_CONV_RESULT:
5136 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5138 mono_mb_emit_stloc (mb, 3);
5140 mono_mb_emit_ldloc (mb, 3);
5141 mono_mb_emit_stloc (mb, loc1);
5143 /* Check for null */
5144 mono_mb_emit_ldloc (mb, 3);
5145 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5147 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5149 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5150 mono_mb_emit_byte (mb, CEE_DUP);
5152 mono_mb_emit_ldloc (mb, 3);
5153 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5154 mono_mb_emit_stloc (mb, 3);
5156 mono_mb_emit_ldloc (mb, loc1);
5157 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5159 mono_mb_patch_branch (mb, pos2);
5162 case MARSHAL_ACTION_MANAGED_CONV_IN:
5163 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5165 mono_mb_emit_byte (mb, CEE_LDNULL);
5166 mono_mb_emit_stloc (mb, conv_arg);
5168 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5171 /* Check for null */
5172 mono_mb_emit_ldarg (mb, argnum);
5174 mono_mb_emit_byte (mb, CEE_LDIND_I);
5175 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5177 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5178 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5180 mono_mb_emit_ldarg (mb, argnum);
5182 mono_mb_emit_byte (mb, CEE_LDIND_I);
5184 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5185 mono_mb_emit_stloc (mb, conv_arg);
5187 mono_mb_patch_branch (mb, pos2);
5190 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5191 g_assert (!t->byref);
5193 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5195 mono_mb_emit_stloc (mb, 3);
5197 mono_mb_emit_ldloc (mb, 3);
5198 mono_mb_emit_stloc (mb, loc1);
5200 /* Check for null */
5201 mono_mb_emit_ldloc (mb, 3);
5202 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5204 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5205 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5206 mono_mb_emit_byte (mb, CEE_DUP);
5208 mono_mb_emit_ldloc (mb, 3);
5209 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5210 mono_mb_emit_stloc (mb, 3);
5212 mono_mb_emit_ldloc (mb, loc1);
5213 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5215 mono_mb_patch_branch (mb, pos2);
5218 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5220 /* Check for null */
5221 mono_mb_emit_ldloc (mb, conv_arg);
5222 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5225 mono_mb_emit_ldarg (mb, argnum);
5227 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5229 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5231 mono_mb_emit_ldloc (mb, conv_arg);
5232 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5233 mono_mb_emit_byte (mb, CEE_STIND_I);
5236 /* Call CleanUpManagedData */
5237 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5239 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5241 mono_mb_emit_ldloc (mb, conv_arg);
5242 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5244 mono_mb_patch_branch (mb, pos2);
5248 g_assert_not_reached ();
5255 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5256 MonoMarshalSpec *spec,
5257 int conv_arg, MonoType **conv_arg_type,
5258 MarshalAction action)
5260 MonoMethodBuilder *mb = m->mb;
5263 case MARSHAL_ACTION_CONV_IN: {
5264 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5266 g_assert (t->type == MONO_TYPE_OBJECT);
5267 g_assert (!t->byref);
5269 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5270 mono_mb_emit_ldarg (mb, argnum);
5271 mono_mb_emit_icon (mb, encoding);
5272 mono_mb_emit_icon (mb, t->attrs);
5273 mono_mb_emit_icall (mb, mono_marshal_asany);
5274 mono_mb_emit_stloc (mb, conv_arg);
5278 case MARSHAL_ACTION_PUSH:
5279 mono_mb_emit_ldloc (mb, conv_arg);
5282 case MARSHAL_ACTION_CONV_OUT: {
5283 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5285 mono_mb_emit_ldarg (mb, argnum);
5286 mono_mb_emit_ldloc (mb, conv_arg);
5287 mono_mb_emit_icon (mb, encoding);
5288 mono_mb_emit_icon (mb, t->attrs);
5289 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5294 g_assert_not_reached ();
5301 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5302 MonoMarshalSpec *spec,
5303 int conv_arg, MonoType **conv_arg_type,
5304 MarshalAction action)
5306 MonoMethodBuilder *mb = m->mb;
5310 klass = mono_class_from_mono_type (t);
5313 case MARSHAL_ACTION_CONV_IN:
5314 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5315 klass->blittable || klass->enumtype)
5318 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5320 /* store the address of the source into local variable 0 */
5322 mono_mb_emit_ldarg (mb, argnum);
5324 mono_mb_emit_ldarg_addr (mb, argnum);
5326 mono_mb_emit_stloc (mb, 0);
5328 /* allocate space for the native struct and
5329 * store the address into local variable 1 (dest) */
5330 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5331 mono_mb_emit_byte (mb, CEE_PREFIX1);
5332 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5333 mono_mb_emit_stloc (mb, conv_arg);
5336 mono_mb_emit_ldloc (mb, 0);
5337 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5340 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5342 mono_mb_emit_ldloc (mb, conv_arg);
5343 mono_mb_emit_stloc (mb, 1);
5345 /* emit valuetype conversion code */
5346 emit_struct_conv (mb, klass, FALSE);
5350 mono_mb_patch_branch (mb, pos);
5353 case MARSHAL_ACTION_PUSH:
5354 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5356 g_assert (!t->byref);
5358 /* Have to change the signature since the vtype is passed byref */
5359 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5361 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5362 klass->blittable || klass->enumtype)
5363 mono_mb_emit_ldarg_addr (mb, argnum);
5365 mono_mb_emit_ldloc (mb, conv_arg);
5369 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5370 klass->blittable || klass->enumtype) {
5371 mono_mb_emit_ldarg (mb, argnum);
5374 mono_mb_emit_ldloc (mb, conv_arg);
5376 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5377 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5381 case MARSHAL_ACTION_CONV_OUT:
5382 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5383 klass->blittable || klass->enumtype)
5387 /* dst = argument */
5388 mono_mb_emit_ldarg (mb, argnum);
5389 mono_mb_emit_stloc (mb, 1);
5391 mono_mb_emit_ldloc (mb, 1);
5392 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5394 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5395 /* src = tmp_locals [i] */
5396 mono_mb_emit_ldloc (mb, conv_arg);
5397 mono_mb_emit_stloc (mb, 0);
5399 /* emit valuetype conversion code */
5400 emit_struct_conv (mb, klass, TRUE);
5404 emit_struct_free (mb, klass, conv_arg);
5407 mono_mb_patch_branch (mb, pos);
5410 case MARSHAL_ACTION_CONV_RESULT:
5411 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5413 mono_mb_emit_stloc (mb, 3);
5416 /* load pointer to returned value type */
5417 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5418 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5419 /* store the address of the source into local variable 0 */
5420 mono_mb_emit_stloc (mb, 0);
5422 mono_mb_emit_ldloc_addr (mb, 3);
5423 mono_mb_emit_stloc (mb, 1);
5425 /* emit valuetype conversion code */
5426 emit_struct_conv (mb, klass, TRUE);
5429 case MARSHAL_ACTION_MANAGED_CONV_IN:
5430 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5431 klass->blittable || klass->enumtype) {
5436 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5438 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5442 mono_mb_emit_ldarg (mb, argnum);
5444 mono_mb_emit_ldarg_addr (mb, argnum);
5445 mono_mb_emit_stloc (mb, 0);
5448 mono_mb_emit_ldloc (mb, 0);
5449 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5452 mono_mb_emit_ldloc_addr (mb, conv_arg);
5453 mono_mb_emit_stloc (mb, 1);
5455 /* emit valuetype conversion code */
5456 emit_struct_conv (mb, klass, TRUE);
5459 mono_mb_patch_branch (mb, pos);
5462 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5463 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5464 klass->blittable || klass->enumtype) {
5468 /* Check for null */
5469 mono_mb_emit_ldarg (mb, argnum);
5470 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5473 mono_mb_emit_ldloc_addr (mb, conv_arg);
5474 mono_mb_emit_stloc (mb, 0);
5477 mono_mb_emit_ldarg (mb, argnum);
5478 mono_mb_emit_stloc (mb, 1);
5480 /* emit valuetype conversion code */
5481 emit_struct_conv (mb, klass, FALSE);
5483 mono_mb_patch_branch (mb, pos2);
5486 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5487 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5488 klass->blittable || klass->enumtype) {
5489 mono_mb_emit_stloc (mb, 3);
5494 /* load pointer to returned value type */
5495 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5496 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5498 /* store the address of the source into local variable 0 */
5499 mono_mb_emit_stloc (mb, 0);
5500 /* allocate space for the native struct and
5501 * store the address into dst_ptr */
5502 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5503 m->retobj_class = klass;
5504 g_assert (m->retobj_var);
5505 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5506 mono_mb_emit_byte (mb, CEE_CONV_I);
5507 mono_mb_emit_icall (mb, mono_marshal_alloc);
5508 mono_mb_emit_stloc (mb, 1);
5509 mono_mb_emit_ldloc (mb, 1);
5510 mono_mb_emit_stloc (mb, m->retobj_var);
5512 /* emit valuetype conversion code */
5513 emit_struct_conv (mb, klass, FALSE);
5517 g_assert_not_reached ();
5524 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5525 MonoMarshalSpec *spec,
5526 int conv_arg, MonoType **conv_arg_type,
5527 MarshalAction action)
5529 MonoMethodBuilder *mb = m->mb;
5530 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5531 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5535 case MARSHAL_ACTION_CONV_IN:
5536 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5537 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5540 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5543 mono_mb_emit_ldarg (mb, argnum);
5544 mono_mb_emit_byte (mb, CEE_LDIND_I);
5546 mono_mb_emit_ldarg (mb, argnum);
5550 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5551 MonoException *exc = mono_get_exception_not_implemented (msg);
5554 mono_raise_exception (exc);
5557 mono_mb_emit_icall (mb, conv_to_icall (conv));
5559 mono_mb_emit_stloc (mb, conv_arg);
5562 case MARSHAL_ACTION_CONV_OUT:
5563 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5565 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5566 mono_mb_emit_exception_marshal_directive (mb, msg);
5570 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5571 mono_mb_emit_ldarg (mb, argnum);
5572 mono_mb_emit_ldloc (mb, conv_arg);
5573 mono_mb_emit_icall (mb, conv_to_icall (conv));
5574 mono_mb_emit_byte (mb, CEE_STIND_REF);
5577 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5578 mono_mb_emit_ldloc (mb, conv_arg);
5579 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5580 mono_mb_emit_icall (mb, mono_free_bstr);
5582 mono_mb_emit_icall (mb, mono_marshal_free);
5586 case MARSHAL_ACTION_PUSH:
5588 mono_mb_emit_ldloc_addr (mb, conv_arg);
5590 mono_mb_emit_ldloc (mb, conv_arg);
5593 case MARSHAL_ACTION_CONV_RESULT:
5594 mono_mb_emit_stloc (mb, 0);
5596 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5598 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5599 mono_mb_emit_exception_marshal_directive (mb, msg);
5603 mono_mb_emit_ldloc (mb, 0);
5604 mono_mb_emit_icall (mb, conv_to_icall (conv));
5605 mono_mb_emit_stloc (mb, 3);
5607 /* free the string */
5608 mono_mb_emit_ldloc (mb, 0);
5609 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5610 mono_mb_emit_icall (mb, mono_free_bstr);
5612 mono_mb_emit_icall (mb, mono_marshal_free);
5615 case MARSHAL_ACTION_MANAGED_CONV_IN:
5616 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5618 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5620 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5622 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5623 mono_mb_emit_exception_marshal_directive (mb, msg);
5627 mono_mb_emit_ldarg (mb, argnum);
5629 mono_mb_emit_byte (mb, CEE_LDIND_I);
5630 mono_mb_emit_icall (mb, conv_to_icall (conv));
5631 mono_mb_emit_stloc (mb, conv_arg);
5634 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5637 mono_mb_emit_ldarg (mb, argnum);
5638 mono_mb_emit_ldloc (mb, conv_arg);
5639 mono_mb_emit_icall (mb, conv_to_icall (conv));
5640 mono_mb_emit_byte (mb, CEE_STIND_I);
5645 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5646 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5647 /* We need to make a copy so the caller is able to free it */
5648 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5650 mono_mb_emit_icall (mb, conv_to_icall (conv));
5651 mono_mb_emit_stloc (mb, 3);
5655 g_assert_not_reached ();
5662 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5663 MonoMarshalSpec *spec, int conv_arg,
5664 MonoType **conv_arg_type, MarshalAction action)
5666 MonoMethodBuilder *mb = m->mb;
5669 case MARSHAL_ACTION_CONV_IN: {
5670 MonoType *intptr_type;
5671 int dar_release_slot, pos;
5673 intptr_type = &mono_defaults.int_class->byval_arg;
5674 conv_arg = mono_mb_add_local (mb, intptr_type);
5675 *conv_arg_type = intptr_type;
5677 if (!sh_dangerous_add_ref)
5678 init_safe_handle ();
5680 mono_mb_emit_ldarg (mb, argnum);
5681 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5682 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5684 mono_mb_patch_branch (mb, pos);
5687 * My tests in show that ref SafeHandles are not really
5688 * passed as ref objects. Instead a NULL is passed as the
5691 mono_mb_emit_icon (mb, 0);
5692 mono_mb_emit_stloc (mb, conv_arg);
5696 /* Create local to hold the ref parameter to DangerousAddRef */
5697 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5699 /* set release = false; */
5700 mono_mb_emit_icon (mb, 0);
5701 mono_mb_emit_stloc (mb, dar_release_slot);
5703 /* safehandle.DangerousAddRef (ref release) */
5704 mono_mb_emit_ldarg (mb, argnum);
5705 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5706 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5708 /* Pull the handle field from SafeHandle */
5709 mono_mb_emit_ldarg (mb, argnum);
5710 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5711 mono_mb_emit_byte (mb, CEE_LDIND_I);
5712 mono_mb_emit_stloc (mb, conv_arg);
5717 case MARSHAL_ACTION_PUSH:
5719 mono_mb_emit_ldloc_addr (mb, conv_arg);
5721 mono_mb_emit_ldloc (mb, conv_arg);
5724 case MARSHAL_ACTION_CONV_OUT: {
5725 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5726 int dar_release_slot = conv_arg + 1;
5729 if (!sh_dangerous_release)
5730 init_safe_handle ();
5736 * My tests indicate that ref SafeHandles parameters are not actually
5737 * passed by ref, but instead a new Handle is created regardless of
5738 * whether a change happens in the unmanaged side.
5740 * Also, the Handle is created before calling into unmanaged code,
5741 * but we do not support that mechanism (getting to the original
5742 * handle) and it makes no difference where we create this
5744 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5746 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5749 /* refval = new SafeHandleDerived ()*/
5750 mono_mb_emit_ldarg (mb, argnum);
5751 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5752 mono_mb_emit_byte (mb, CEE_STIND_REF);
5754 /* refval.handle = returned_handle */
5755 mono_mb_emit_ldarg (mb, argnum);
5756 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5757 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5758 mono_mb_emit_ldloc (mb, conv_arg);
5759 mono_mb_emit_byte (mb, CEE_STIND_I);
5761 mono_mb_emit_ldloc (mb, dar_release_slot);
5762 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5763 mono_mb_emit_ldarg (mb, argnum);
5764 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5765 mono_mb_patch_branch (mb, label_next);
5770 case MARSHAL_ACTION_CONV_RESULT: {
5771 MonoMethod *ctor = NULL;
5772 int intptr_handle_slot;
5774 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5775 mono_mb_emit_byte (mb, CEE_POP);
5776 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
5780 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5782 mono_mb_emit_byte (mb, CEE_POP);
5783 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5786 /* Store the IntPtr results into a local */
5787 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5788 mono_mb_emit_stloc (mb, intptr_handle_slot);
5790 /* Create return value */
5791 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5792 mono_mb_emit_stloc (mb, 3);
5794 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5795 mono_mb_emit_ldloc (mb, 3);
5796 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5797 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5798 mono_mb_emit_byte (mb, CEE_STIND_I);
5802 case MARSHAL_ACTION_MANAGED_CONV_IN:
5803 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5806 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5807 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5810 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5811 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5814 printf ("Unhandled case for MarshalAction: %d\n", action);
5821 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5822 MonoMarshalSpec *spec, int conv_arg,
5823 MonoType **conv_arg_type, MarshalAction action)
5825 MonoMethodBuilder *mb = m->mb;
5828 case MARSHAL_ACTION_CONV_IN: {
5829 MonoType *intptr_type;
5831 intptr_type = &mono_defaults.int_class->byval_arg;
5832 conv_arg = mono_mb_add_local (mb, intptr_type);
5833 *conv_arg_type = intptr_type;
5836 mono_mb_emit_exception_marshal_directive (mb,
5837 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5840 mono_mb_emit_ldarg_addr (mb, argnum);
5841 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
5842 mono_mb_emit_byte (mb, CEE_ADD);
5843 mono_mb_emit_byte (mb, CEE_LDIND_I);
5844 mono_mb_emit_stloc (mb, conv_arg);
5848 case MARSHAL_ACTION_PUSH:
5849 mono_mb_emit_ldloc (mb, conv_arg);
5852 case MARSHAL_ACTION_CONV_OUT: {
5853 /* no resource release required */
5857 case MARSHAL_ACTION_CONV_RESULT: {
5858 mono_mb_emit_exception_marshal_directive (mb,
5859 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5863 case MARSHAL_ACTION_MANAGED_CONV_IN:
5864 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5867 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5868 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5871 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5872 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5875 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5882 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5883 MonoMarshalSpec *spec,
5884 int conv_arg, MonoType **conv_arg_type,
5885 MarshalAction action)
5887 MonoMethodBuilder *mb = m->mb;
5888 MonoClass *klass = mono_class_from_mono_type (t);
5892 case MARSHAL_ACTION_CONV_IN:
5893 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5894 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5896 m->orig_conv_args [argnum] = 0;
5898 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5899 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5900 mono_mb_emit_exception_marshal_directive (mb, msg);
5904 if (klass->delegate) {
5906 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5907 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5908 mono_mb_emit_exception_marshal_directive (mb, msg);
5910 mono_mb_emit_byte (mb, CEE_LDNULL);
5911 mono_mb_emit_stloc (mb, conv_arg);
5913 mono_mb_emit_ldarg (mb, argnum);
5914 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5915 mono_mb_emit_stloc (mb, conv_arg);
5917 } else if (klass == mono_defaults.stringbuilder_class) {
5918 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5919 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5921 g_assert (!t->byref);
5922 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_icall (mb, conv_to_icall (conv));
5927 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5928 MonoException *exc = mono_get_exception_not_implemented (msg);
5931 mono_raise_exception (exc);
5934 mono_mb_emit_stloc (mb, conv_arg);
5935 } else if (klass->blittable) {
5936 mono_mb_emit_byte (mb, CEE_LDNULL);
5937 mono_mb_emit_stloc (mb, conv_arg);
5939 mono_mb_emit_ldarg (mb, argnum);
5940 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5942 mono_mb_emit_ldarg (mb, argnum);
5943 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5944 mono_mb_emit_stloc (mb, conv_arg);
5946 mono_mb_patch_branch (mb, pos);
5949 mono_mb_emit_byte (mb, CEE_LDNULL);
5950 mono_mb_emit_stloc (mb, conv_arg);
5953 /* we dont need any conversions for out parameters */
5954 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5957 mono_mb_emit_ldarg (mb, argnum);
5958 mono_mb_emit_byte (mb, CEE_LDIND_I);
5961 mono_mb_emit_ldarg (mb, argnum);
5962 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5963 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5966 /* store the address of the source into local variable 0 */
5967 mono_mb_emit_stloc (mb, 0);
5968 mono_mb_emit_ldloc (mb, 0);
5969 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5971 /* allocate space for the native struct and store the address */
5972 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5973 mono_mb_emit_byte (mb, CEE_PREFIX1);
5974 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5975 mono_mb_emit_stloc (mb, conv_arg);
5978 /* Need to store the original buffer so we can free it later */
5979 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5980 mono_mb_emit_ldloc (mb, conv_arg);
5981 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5984 /* set the src_ptr */
5985 mono_mb_emit_ldloc (mb, 0);
5986 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5987 mono_mb_emit_stloc (mb, 0);
5990 mono_mb_emit_ldloc (mb, conv_arg);
5991 mono_mb_emit_stloc (mb, 1);
5993 /* emit valuetype conversion code */
5994 emit_struct_conv (mb, klass, FALSE);
5996 mono_mb_patch_branch (mb, pos);
6000 case MARSHAL_ACTION_CONV_OUT:
6001 if (klass == mono_defaults.stringbuilder_class) {
6003 MonoMarshalNative encoding;
6004 MonoMarshalConv conv;
6006 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6007 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6009 g_assert (!t->byref);
6010 g_assert (encoding != -1);
6012 mono_mb_emit_ldarg (mb, argnum);
6013 mono_mb_emit_ldloc (mb, conv_arg);
6015 mono_mb_emit_icall (mb, conv_to_icall (conv));
6018 mono_mb_emit_ldloc (mb, conv_arg);
6019 mono_mb_emit_icall (mb, mono_marshal_free);
6024 if (klass->delegate) {
6026 mono_mb_emit_ldarg (mb, argnum);
6027 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6028 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6029 mono_mb_emit_ldloc (mb, conv_arg);
6030 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6031 mono_mb_emit_byte (mb, CEE_STIND_REF);
6036 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6037 /* allocate a new object */
6038 mono_mb_emit_ldarg (mb, argnum);
6039 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6040 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6041 mono_mb_emit_byte (mb, CEE_STIND_REF);
6044 /* dst = *argument */
6045 mono_mb_emit_ldarg (mb, argnum);
6048 mono_mb_emit_byte (mb, CEE_LDIND_I);
6050 mono_mb_emit_stloc (mb, 1);
6052 mono_mb_emit_ldloc (mb, 1);
6053 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6055 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6056 mono_mb_emit_ldloc (mb, 1);
6057 mono_mb_emit_icon (mb, sizeof (MonoObject));
6058 mono_mb_emit_byte (mb, CEE_ADD);
6059 mono_mb_emit_stloc (mb, 1);
6061 /* src = tmp_locals [i] */
6062 mono_mb_emit_ldloc (mb, conv_arg);
6063 mono_mb_emit_stloc (mb, 0);
6065 /* emit valuetype conversion code */
6066 emit_struct_conv (mb, klass, TRUE);
6068 /* Free the structure returned by the native code */
6069 emit_struct_free (mb, klass, conv_arg);
6071 if (m->orig_conv_args [argnum]) {
6073 * If the native function changed the pointer, then free
6074 * the original structure plus the new pointer.
6076 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6077 mono_mb_emit_ldloc (mb, conv_arg);
6078 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6080 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6081 g_assert (m->orig_conv_args [argnum]);
6083 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6086 mono_mb_emit_ldloc (mb, conv_arg);
6087 mono_mb_emit_icall (mb, g_free);
6089 mono_mb_patch_branch (mb, pos2);
6093 /* Free the original structure passed to native code */
6094 emit_struct_free (mb, klass, conv_arg);
6096 mono_mb_patch_branch (mb, pos);
6099 case MARSHAL_ACTION_PUSH:
6101 mono_mb_emit_ldloc_addr (mb, conv_arg);
6103 mono_mb_emit_ldloc (mb, conv_arg);
6106 case MARSHAL_ACTION_CONV_RESULT:
6107 if (klass->delegate) {
6108 g_assert (!t->byref);
6109 mono_mb_emit_stloc (mb, 0);
6110 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6111 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6112 mono_mb_emit_ldloc (mb, 0);
6113 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6114 mono_mb_emit_stloc (mb, 3);
6117 mono_mb_emit_stloc (mb, 0);
6119 /* Make a copy since emit_conv modifies local 0 */
6120 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6121 mono_mb_emit_ldloc (mb, 0);
6122 mono_mb_emit_stloc (mb, loc);
6124 mono_mb_emit_byte (mb, CEE_LDNULL);
6125 mono_mb_emit_stloc (mb, 3);
6127 mono_mb_emit_ldloc (mb, 0);
6128 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6130 /* allocate result object */
6132 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6133 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6134 mono_mb_emit_stloc (mb, 3);
6138 mono_mb_emit_ldloc (mb, 3);
6139 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6140 mono_mb_emit_stloc (mb, 1);
6142 /* emit conversion code */
6143 emit_struct_conv (mb, klass, TRUE);
6145 emit_struct_free (mb, klass, loc);
6147 /* Free the pointer allocated by unmanaged code */
6148 mono_mb_emit_ldloc (mb, loc);
6149 mono_mb_emit_icall (mb, g_free);
6150 mono_mb_patch_branch (mb, pos);
6154 case MARSHAL_ACTION_MANAGED_CONV_IN:
6155 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6157 if (klass->delegate) {
6158 g_assert (!t->byref);
6159 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6160 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6161 mono_mb_emit_ldarg (mb, argnum);
6162 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6163 mono_mb_emit_stloc (mb, conv_arg);
6167 if (klass == mono_defaults.stringbuilder_class) {
6168 MonoMarshalNative encoding;
6170 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6173 g_assert (encoding == MONO_NATIVE_LPSTR);
6175 g_assert (!t->byref);
6176 g_assert (encoding != -1);
6178 mono_mb_emit_ldarg (mb, argnum);
6179 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6180 mono_mb_emit_stloc (mb, conv_arg);
6184 /* The class can not have an automatic layout */
6185 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6186 mono_mb_emit_auto_layout_exception (mb, klass);
6190 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6191 mono_mb_emit_byte (mb, CEE_LDNULL);
6192 mono_mb_emit_stloc (mb, conv_arg);
6197 mono_mb_emit_ldarg (mb, argnum);
6201 /* Check for NULL and raise an exception */
6202 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6204 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6206 mono_mb_patch_branch (mb, pos2);
6207 mono_mb_emit_ldarg (mb, argnum);
6208 mono_mb_emit_byte (mb, CEE_LDIND_I);
6211 mono_mb_emit_stloc (mb, 0);
6213 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6214 mono_mb_emit_stloc (mb, conv_arg);
6216 mono_mb_emit_ldloc (mb, 0);
6217 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6219 /* Create and set dst */
6220 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6221 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6222 mono_mb_emit_stloc (mb, conv_arg);
6223 mono_mb_emit_ldloc (mb, conv_arg);
6224 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6225 mono_mb_emit_stloc (mb, 1);
6227 /* emit valuetype conversion code */
6228 emit_struct_conv (mb, klass, TRUE);
6230 mono_mb_patch_branch (mb, pos);
6233 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6235 /* Check for null */
6236 mono_mb_emit_ldloc (mb, conv_arg);
6237 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6238 mono_mb_emit_ldarg (mb, argnum);
6239 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6240 mono_mb_emit_byte (mb, CEE_STIND_REF);
6241 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6243 mono_mb_patch_branch (mb, pos);
6246 mono_mb_emit_ldloc (mb, conv_arg);
6247 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6248 mono_mb_emit_stloc (mb, 0);
6250 /* Allocate and set dest */
6251 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6252 mono_mb_emit_byte (mb, CEE_CONV_I);
6253 mono_mb_emit_icall (mb, mono_marshal_alloc);
6254 mono_mb_emit_stloc (mb, 1);
6256 /* Update argument pointer */
6257 mono_mb_emit_ldarg (mb, argnum);
6258 mono_mb_emit_ldloc (mb, 1);
6259 mono_mb_emit_byte (mb, CEE_STIND_I);
6261 /* emit valuetype conversion code */
6262 emit_struct_conv (mb, klass, FALSE);
6264 mono_mb_patch_branch (mb, pos2);
6266 /* byval [Out] marshalling */
6268 /* FIXME: Handle null */
6271 mono_mb_emit_ldloc (mb, conv_arg);
6272 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6273 mono_mb_emit_stloc (mb, 0);
6276 mono_mb_emit_ldarg (mb, argnum);
6277 mono_mb_emit_stloc (mb, 1);
6279 /* emit valuetype conversion code */
6280 emit_struct_conv (mb, klass, FALSE);
6284 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6285 if (klass->delegate) {
6286 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6287 mono_mb_emit_stloc (mb, 3);
6291 /* The class can not have an automatic layout */
6292 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6293 mono_mb_emit_auto_layout_exception (mb, klass);
6297 mono_mb_emit_stloc (mb, 0);
6298 /* Check for null */
6299 mono_mb_emit_ldloc (mb, 0);
6300 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6301 mono_mb_emit_byte (mb, CEE_LDNULL);
6302 mono_mb_emit_stloc (mb, 3);
6303 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6305 mono_mb_patch_branch (mb, pos);
6308 mono_mb_emit_ldloc (mb, 0);
6309 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6310 mono_mb_emit_stloc (mb, 0);
6312 /* Allocate and set dest */
6313 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6314 mono_mb_emit_byte (mb, CEE_CONV_I);
6315 mono_mb_emit_icall (mb, mono_marshal_alloc);
6316 mono_mb_emit_byte (mb, CEE_DUP);
6317 mono_mb_emit_stloc (mb, 1);
6318 mono_mb_emit_stloc (mb, 3);
6320 emit_struct_conv (mb, klass, FALSE);
6322 mono_mb_patch_branch (mb, pos2);
6326 g_assert_not_reached ();
6333 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6334 MonoMarshalSpec *spec,
6335 int conv_arg, MonoType **conv_arg_type,
6336 MarshalAction action)
6338 MonoMethodBuilder *mb = m->mb;
6339 static MonoMethod *get_object_for_native_variant = NULL;
6340 static MonoMethod *get_native_variant_for_object = NULL;
6342 mono_init_com_types ();
6344 if (!get_object_for_native_variant)
6345 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6346 g_assert (get_object_for_native_variant);
6348 if (!get_native_variant_for_object)
6349 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6350 g_assert (get_native_variant_for_object);
6353 case MARSHAL_ACTION_CONV_IN: {
6354 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6357 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6359 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6361 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6364 mono_mb_emit_ldarg (mb, argnum);
6366 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6367 mono_mb_emit_ldloc_addr (mb, conv_arg);
6368 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6372 case MARSHAL_ACTION_CONV_OUT: {
6373 static MonoMethod *variant_clear = NULL;
6376 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6377 g_assert (variant_clear);
6380 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6381 mono_mb_emit_ldarg (mb, argnum);
6382 mono_mb_emit_ldloc_addr (mb, conv_arg);
6383 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6384 mono_mb_emit_byte (mb, CEE_STIND_REF);
6387 mono_mb_emit_ldloc_addr (mb, conv_arg);
6388 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6392 case MARSHAL_ACTION_PUSH:
6394 mono_mb_emit_ldloc_addr (mb, conv_arg);
6396 mono_mb_emit_ldloc (mb, conv_arg);
6399 case MARSHAL_ACTION_CONV_RESULT: {
6400 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6401 mono_mb_emit_exception_marshal_directive (mb, msg);
6405 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6406 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6409 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6411 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6413 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6417 mono_mb_emit_ldarg (mb, argnum);
6419 mono_mb_emit_ldarg_addr (mb, argnum);
6420 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6421 mono_mb_emit_stloc (mb, conv_arg);
6425 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6426 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6427 mono_mb_emit_ldloc (mb, conv_arg);
6428 mono_mb_emit_ldarg (mb, argnum);
6429 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6434 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6435 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6436 mono_mb_emit_exception_marshal_directive (mb, msg);
6441 g_assert_not_reached ();
6448 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6449 MonoMarshalSpec *spec,
6450 int conv_arg, MonoType **conv_arg_type,
6451 MarshalAction action)
6453 MonoMethodBuilder *mb = m->mb;
6454 MonoClass *klass = mono_class_from_mono_type (t);
6455 gboolean need_convert, need_free;
6456 MonoMarshalNative encoding;
6458 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6461 case MARSHAL_ACTION_CONV_IN:
6462 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6463 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6465 if (klass->element_class->blittable) {
6466 mono_mb_emit_ldarg (mb, argnum);
6468 mono_mb_emit_byte (mb, CEE_LDIND_I);
6469 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6470 mono_mb_emit_stloc (mb, conv_arg);
6473 guint32 label1, label2, label3;
6474 int index_var, src_var, dest_ptr, esize;
6475 MonoMarshalConv conv;
6476 gboolean is_string = FALSE;
6478 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6480 eklass = klass->element_class;
6482 if (eklass == mono_defaults.string_class) {
6484 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6486 else if (eklass == mono_defaults.stringbuilder_class) {
6488 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6493 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6494 mono_mb_emit_ldarg (mb, argnum);
6496 mono_mb_emit_byte (mb, CEE_LDIND_I);
6497 mono_mb_emit_stloc (mb, src_var);
6500 mono_mb_emit_ldloc (mb, src_var);
6501 mono_mb_emit_stloc (mb, conv_arg);
6502 mono_mb_emit_ldloc (mb, src_var);
6503 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6507 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6508 MonoException *exc = mono_get_exception_not_implemented (msg);
6511 mono_raise_exception (exc);
6516 esize = sizeof (gpointer);
6518 esize = mono_class_native_size (eklass, NULL);
6520 /* allocate space for the native struct and store the address */
6521 mono_mb_emit_icon (mb, esize);
6522 mono_mb_emit_ldloc (mb, src_var);
6523 mono_mb_emit_byte (mb, CEE_LDLEN);
6525 if (eklass == mono_defaults.string_class) {
6526 /* Make the array bigger for the terminating null */
6527 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6528 mono_mb_emit_byte (mb, CEE_ADD);
6530 mono_mb_emit_byte (mb, CEE_MUL);
6531 mono_mb_emit_byte (mb, CEE_PREFIX1);
6532 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6533 mono_mb_emit_stloc (mb, conv_arg);
6535 mono_mb_emit_ldloc (mb, conv_arg);
6536 mono_mb_emit_stloc (mb, dest_ptr);
6538 /* Emit marshalling loop */
6539 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6540 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6541 mono_mb_emit_stloc (mb, index_var);
6542 label2 = mono_mb_get_label (mb);
6543 mono_mb_emit_ldloc (mb, index_var);
6544 mono_mb_emit_ldloc (mb, src_var);
6545 mono_mb_emit_byte (mb, CEE_LDLEN);
6546 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6548 /* Emit marshalling code */
6551 mono_mb_emit_ldloc (mb, dest_ptr);
6552 mono_mb_emit_ldloc (mb, src_var);
6553 mono_mb_emit_ldloc (mb, index_var);
6554 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6555 mono_mb_emit_icall (mb, conv_to_icall (conv));
6556 mono_mb_emit_byte (mb, CEE_STIND_I);
6558 /* set the src_ptr */
6559 mono_mb_emit_ldloc (mb, src_var);
6560 mono_mb_emit_ldloc (mb, index_var);
6561 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6562 mono_mb_emit_stloc (mb, 0);
6565 mono_mb_emit_ldloc (mb, dest_ptr);
6566 mono_mb_emit_stloc (mb, 1);
6568 /* emit valuetype conversion code */
6569 emit_struct_conv (mb, eklass, FALSE);
6572 mono_mb_emit_add_to_local (mb, index_var, 1);
6573 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6575 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6577 mono_mb_patch_branch (mb, label3);
6579 if (eklass == mono_defaults.string_class) {
6580 /* Null terminate */
6581 mono_mb_emit_ldloc (mb, dest_ptr);
6582 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6583 mono_mb_emit_byte (mb, CEE_STIND_REF);
6586 mono_mb_patch_branch (mb, label1);
6591 case MARSHAL_ACTION_CONV_OUT:
6592 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6593 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);
6594 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6597 if (need_convert || need_free) {
6598 /* FIXME: Optimize blittable case */
6600 guint32 label1, label2, label3;
6601 int index_var, src_ptr, loc, esize;
6603 eklass = klass->element_class;
6604 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6605 esize = sizeof (gpointer);
6607 esize = mono_class_native_size (eklass, NULL);
6608 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6609 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6612 mono_mb_emit_ldarg (mb, argnum);
6614 mono_mb_emit_byte (mb, CEE_LDIND_I);
6615 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6617 mono_mb_emit_ldloc (mb, conv_arg);
6618 mono_mb_emit_stloc (mb, src_ptr);
6620 /* Emit marshalling loop */
6621 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6622 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6623 mono_mb_emit_stloc (mb, index_var);
6624 label2 = mono_mb_get_label (mb);
6625 mono_mb_emit_ldloc (mb, index_var);
6626 mono_mb_emit_ldarg (mb, argnum);
6628 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6629 mono_mb_emit_byte (mb, CEE_LDLEN);
6630 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6632 /* Emit marshalling code */
6634 if (eklass == mono_defaults.stringbuilder_class) {
6635 gboolean need_free2;
6636 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6638 g_assert (conv != -1);
6641 mono_mb_emit_ldarg (mb, argnum);
6643 mono_mb_emit_byte (mb, CEE_LDIND_I);
6644 mono_mb_emit_ldloc (mb, index_var);
6645 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6648 mono_mb_emit_ldloc (mb, src_ptr);
6649 mono_mb_emit_byte (mb, CEE_LDIND_I);
6651 mono_mb_emit_icall (mb, conv_to_icall (conv));
6655 mono_mb_emit_ldloc (mb, src_ptr);
6656 mono_mb_emit_byte (mb, CEE_LDIND_I);
6658 mono_mb_emit_icall (mb, mono_marshal_free);
6661 else if (eklass == mono_defaults.string_class) {
6664 mono_mb_emit_ldloc (mb, src_ptr);
6665 mono_mb_emit_byte (mb, CEE_LDIND_I);
6667 mono_mb_emit_icall (mb, mono_marshal_free);
6672 /* set the src_ptr */
6673 mono_mb_emit_ldloc (mb, src_ptr);
6674 mono_mb_emit_stloc (mb, 0);
6677 mono_mb_emit_ldarg (mb, argnum);
6679 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6680 mono_mb_emit_ldloc (mb, index_var);
6681 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6682 mono_mb_emit_stloc (mb, 1);
6684 /* emit valuetype conversion code */
6685 emit_struct_conv (mb, eklass, TRUE);
6689 mono_mb_emit_ldloc (mb, src_ptr);
6690 mono_mb_emit_stloc (mb, loc);
6691 mono_mb_emit_ldloc (mb, loc);
6693 emit_struct_free (mb, eklass, loc);
6697 mono_mb_emit_add_to_local (mb, index_var, 1);
6698 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6700 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6702 mono_mb_patch_branch (mb, label1);
6703 mono_mb_patch_branch (mb, label3);
6707 case MARSHAL_ACTION_PUSH:
6709 mono_mb_emit_ldloc_addr (mb, conv_arg);
6711 mono_mb_emit_ldloc (mb, conv_arg);
6714 case MARSHAL_ACTION_CONV_RESULT:
6715 /* fixme: we need conversions here */
6716 mono_mb_emit_stloc (mb, 3);
6719 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6721 guint32 label1, label2, label3;
6722 int index_var, src_ptr, loc, esize, param_num, num_elem;
6723 MonoMarshalConv conv;
6724 gboolean is_string = FALSE;
6726 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6727 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6730 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6731 mono_mb_emit_exception_marshal_directive (mb, msg);
6735 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6736 mono_mb_emit_exception_marshal_directive (mb, msg);
6739 if (spec->native != MONO_NATIVE_LPARRAY) {
6740 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6741 mono_mb_emit_exception_marshal_directive (mb, msg);
6745 /* FIXME: t is from the method which is wrapped, not the delegate type */
6746 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6748 param_num = spec->data.array_data.param_num;
6749 num_elem = spec->data.array_data.num_elem;
6750 if (spec->data.array_data.elem_mult == 0)
6751 /* param_num is not specified */
6754 if (param_num == -1) {
6755 if (num_elem <= 0) {
6756 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6757 mono_mb_emit_exception_marshal_directive (mb, msg);
6762 /* FIXME: Optimize blittable case */
6764 eklass = klass->element_class;
6765 if (eklass == mono_defaults.string_class) {
6767 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6769 else if (eklass == mono_defaults.stringbuilder_class) {
6771 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6776 mono_marshal_load_type_info (eklass);
6779 esize = sizeof (gpointer);
6781 esize = mono_class_native_size (eklass, NULL);
6782 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6783 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6785 mono_mb_emit_byte (mb, CEE_LDNULL);
6786 mono_mb_emit_stloc (mb, conv_arg);
6788 /* Check param index */
6789 if (param_num != -1) {
6790 if (param_num >= m->sig->param_count) {
6791 char *msg = g_strdup ("Array size control parameter index is out of range.");
6792 mono_mb_emit_exception_marshal_directive (mb, msg);
6795 switch (m->sig->params [param_num]->type) {
6808 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6809 mono_mb_emit_exception_marshal_directive (mb, msg);
6816 mono_mb_emit_ldarg (mb, argnum);
6817 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6819 mono_mb_emit_ldarg (mb, argnum);
6820 mono_mb_emit_stloc (mb, src_ptr);
6822 /* Create managed array */
6824 * The LPArray marshalling spec says that sometimes param_num starts
6825 * from 1, sometimes it starts from 0. But MS seems to allways start
6829 if (param_num == -1)
6830 mono_mb_emit_icon (mb, num_elem);
6832 /* FIXME: Add the two together */
6833 mono_mb_emit_ldarg (mb, param_num);
6835 mono_mb_emit_icon (mb, num_elem);
6836 mono_mb_emit_byte (mb, CEE_ADD);
6840 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6841 mono_mb_emit_stloc (mb, conv_arg);
6843 if (eklass->blittable) {
6844 mono_mb_emit_ldloc (mb, conv_arg);
6845 mono_mb_emit_byte (mb, CEE_CONV_I);
6846 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6847 mono_mb_emit_byte (mb, CEE_ADD);
6848 mono_mb_emit_ldarg (mb, argnum);
6849 mono_mb_emit_ldloc (mb, conv_arg);
6850 mono_mb_emit_byte (mb, CEE_LDLEN);
6851 mono_mb_emit_icon (mb, esize);
6852 mono_mb_emit_byte (mb, CEE_MUL);
6853 mono_mb_emit_byte (mb, CEE_PREFIX1);
6854 mono_mb_emit_byte (mb, CEE_CPBLK);
6858 /* Emit marshalling loop */
6859 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6860 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6861 mono_mb_emit_stloc (mb, index_var);
6862 label2 = mono_mb_get_label (mb);
6863 mono_mb_emit_ldloc (mb, index_var);
6864 mono_mb_emit_ldloc (mb, conv_arg);
6865 mono_mb_emit_byte (mb, CEE_LDLEN);
6866 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6868 /* Emit marshalling code */
6870 g_assert (conv != -1);
6872 mono_mb_emit_ldloc (mb, conv_arg);
6873 mono_mb_emit_ldloc (mb, index_var);
6875 mono_mb_emit_ldloc (mb, src_ptr);
6876 mono_mb_emit_byte (mb, CEE_LDIND_I);
6878 mono_mb_emit_icall (mb, conv_to_icall (conv));
6879 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6882 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6883 mono_mb_emit_exception_marshal_directive (mb, msg);
6887 mono_mb_emit_add_to_local (mb, index_var, 1);
6888 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6890 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6892 mono_mb_patch_branch (mb, label1);
6893 mono_mb_patch_branch (mb, label3);
6897 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6899 guint32 label1, label2, label3;
6900 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6901 MonoMarshalConv conv;
6902 gboolean is_string = FALSE;
6905 /* Already handled in CONV_IN */
6908 /* These are already checked in CONV_IN */
6909 g_assert (!t->byref);
6910 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6911 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6913 param_num = spec->data.array_data.param_num;
6914 num_elem = spec->data.array_data.num_elem;
6916 if (spec->data.array_data.elem_mult == 0)
6917 /* param_num is not specified */
6920 if (param_num == -1) {
6921 if (num_elem <= 0) {
6922 g_assert_not_reached ();
6926 /* FIXME: Optimize blittable case */
6928 eklass = klass->element_class;
6929 if (eklass == mono_defaults.string_class) {
6931 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6933 else if (eklass == mono_defaults.stringbuilder_class) {
6935 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6940 mono_marshal_load_type_info (eklass);
6943 esize = sizeof (gpointer);
6945 esize = mono_class_native_size (eklass, NULL);
6947 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6948 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6951 mono_mb_emit_ldloc (mb, conv_arg);
6952 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6954 mono_mb_emit_ldarg (mb, argnum);
6955 mono_mb_emit_stloc (mb, dest_ptr);
6957 if (eklass->blittable) {
6959 mono_mb_emit_ldarg (mb, argnum);
6961 mono_mb_emit_ldloc (mb, conv_arg);
6962 mono_mb_emit_byte (mb, CEE_CONV_I);
6963 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6964 mono_mb_emit_byte (mb, CEE_ADD);
6966 mono_mb_emit_ldloc (mb, conv_arg);
6967 mono_mb_emit_byte (mb, CEE_LDLEN);
6968 mono_mb_emit_icon (mb, esize);
6969 mono_mb_emit_byte (mb, CEE_MUL);
6970 mono_mb_emit_byte (mb, CEE_PREFIX1);
6971 mono_mb_emit_byte (mb, CEE_CPBLK);
6975 /* Emit marshalling loop */
6976 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6977 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6978 mono_mb_emit_stloc (mb, index_var);
6979 label2 = mono_mb_get_label (mb);
6980 mono_mb_emit_ldloc (mb, index_var);
6981 mono_mb_emit_ldloc (mb, conv_arg);
6982 mono_mb_emit_byte (mb, CEE_LDLEN);
6983 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6985 /* Emit marshalling code */
6987 g_assert (conv != -1);
6990 mono_mb_emit_ldloc (mb, dest_ptr);
6993 mono_mb_emit_ldloc (mb, conv_arg);
6994 mono_mb_emit_ldloc (mb, index_var);
6996 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6998 mono_mb_emit_icall (mb, conv_to_icall (conv));
6999 mono_mb_emit_byte (mb, CEE_STIND_I);
7002 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7003 mono_mb_emit_exception_marshal_directive (mb, msg);
7007 mono_mb_emit_add_to_local (mb, index_var, 1);
7008 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7010 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7012 mono_mb_patch_branch (mb, label1);
7013 mono_mb_patch_branch (mb, label3);
7017 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7019 guint32 label1, label2, label3;
7020 int index_var, src, dest, esize;
7021 MonoMarshalConv conv = -1;
7022 gboolean is_string = FALSE;
7024 g_assert (!t->byref);
7026 eklass = klass->element_class;
7028 mono_marshal_load_type_info (eklass);
7030 if (eklass == mono_defaults.string_class) {
7032 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7035 g_assert_not_reached ();
7039 esize = sizeof (gpointer);
7041 esize = mono_class_native_size (eklass, NULL);
7043 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7044 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7046 mono_mb_emit_stloc (mb, src);
7047 mono_mb_emit_ldloc (mb, src);
7048 mono_mb_emit_stloc (mb, 3);
7050 /* Check for null */
7051 mono_mb_emit_ldloc (mb, src);
7052 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7054 /* Allocate native array */
7055 mono_mb_emit_icon (mb, esize);
7056 mono_mb_emit_ldloc (mb, src);
7057 mono_mb_emit_byte (mb, CEE_LDLEN);
7059 if (eklass == mono_defaults.string_class) {
7060 /* Make the array bigger for the terminating null */
7061 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7062 mono_mb_emit_byte (mb, CEE_ADD);
7064 mono_mb_emit_byte (mb, CEE_MUL);
7065 mono_mb_emit_icall (mb, mono_marshal_alloc);
7066 mono_mb_emit_stloc (mb, dest);
7067 mono_mb_emit_ldloc (mb, dest);
7068 mono_mb_emit_stloc (mb, 3);
7070 /* Emit marshalling loop */
7071 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7072 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7073 mono_mb_emit_stloc (mb, index_var);
7074 label2 = mono_mb_get_label (mb);
7075 mono_mb_emit_ldloc (mb, index_var);
7076 mono_mb_emit_ldloc (mb, src);
7077 mono_mb_emit_byte (mb, CEE_LDLEN);
7078 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7080 /* Emit marshalling code */
7082 g_assert (conv != -1);
7085 mono_mb_emit_ldloc (mb, dest);
7088 mono_mb_emit_ldloc (mb, src);
7089 mono_mb_emit_ldloc (mb, index_var);
7091 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7093 mono_mb_emit_icall (mb, conv_to_icall (conv));
7094 mono_mb_emit_byte (mb, CEE_STIND_I);
7097 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7098 mono_mb_emit_exception_marshal_directive (mb, msg);
7102 mono_mb_emit_add_to_local (mb, index_var, 1);
7103 mono_mb_emit_add_to_local (mb, dest, esize);
7105 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7107 mono_mb_patch_branch (mb, label3);
7108 mono_mb_patch_branch (mb, label1);
7112 g_assert_not_reached ();
7119 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7120 MonoMarshalSpec *spec,
7121 int conv_arg, MonoType **conv_arg_type,
7122 MarshalAction action)
7124 MonoMethodBuilder *mb = m->mb;
7127 case MARSHAL_ACTION_CONV_IN: {
7128 MonoType *local_type;
7130 guint8 ldc_op = CEE_LDC_I4_1;
7133 local_type = &mono_defaults.int32_class->byval_arg;
7135 switch (spec->native) {
7136 case MONO_NATIVE_I1:
7137 case MONO_NATIVE_U1:
7138 local_type = &mono_defaults.byte_class->byval_arg;
7140 case MONO_NATIVE_VARIANTBOOL:
7141 local_type = &mono_defaults.int16_class->byval_arg;
7142 ldc_op = CEE_LDC_I4_M1;
7144 case MONO_NATIVE_BOOLEAN:
7145 local_type = &mono_defaults.int32_class->byval_arg;
7148 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7149 local_type = &mono_defaults.int32_class->byval_arg;
7154 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7156 *conv_arg_type = local_type;
7157 conv_arg = mono_mb_add_local (mb, local_type);
7159 mono_mb_emit_ldarg (mb, argnum);
7161 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7162 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7163 mono_mb_emit_byte (mb, ldc_op);
7164 mono_mb_emit_stloc (mb, conv_arg);
7165 mono_mb_patch_branch (mb, label_false);
7170 case MARSHAL_ACTION_CONV_OUT:
7172 int label_false, label_end;
7176 mono_mb_emit_ldarg (mb, argnum);
7177 mono_mb_emit_ldloc (mb, conv_arg);
7179 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7180 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7182 label_end = mono_mb_emit_branch (mb, CEE_BR);
7183 mono_mb_patch_branch (mb, label_false);
7184 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7185 mono_mb_patch_branch (mb, label_end);
7187 mono_mb_emit_byte (mb, CEE_STIND_I1);
7191 case MARSHAL_ACTION_PUSH:
7193 mono_mb_emit_ldloc_addr (mb, conv_arg);
7195 mono_mb_emit_ldloc (mb, conv_arg);
7197 mono_mb_emit_ldarg (mb, argnum);
7200 case MARSHAL_ACTION_CONV_RESULT:
7201 /* maybe we need to make sure that it fits within 8 bits */
7202 mono_mb_emit_stloc (mb, 3);
7205 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7206 MonoClass* conv_arg_class = mono_defaults.int32_class;
7207 guint8 ldop = CEE_LDIND_I4;
7208 int label_null, label_false;
7210 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7213 switch (spec->native) {
7214 case MONO_NATIVE_I1:
7215 case MONO_NATIVE_U1:
7216 conv_arg_class = mono_defaults.byte_class;
7217 ldop = CEE_LDIND_I1;
7219 case MONO_NATIVE_VARIANTBOOL:
7220 conv_arg_class = mono_defaults.int16_class;
7221 ldop = CEE_LDIND_I2;
7223 case MONO_NATIVE_BOOLEAN:
7226 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7231 *conv_arg_type = &conv_arg_class->this_arg;
7233 *conv_arg_type = &conv_arg_class->byval_arg;
7236 mono_mb_emit_ldarg (mb, argnum);
7241 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7242 mono_mb_emit_ldarg (mb, argnum);
7243 mono_mb_emit_byte (mb, ldop);
7246 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7247 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7248 mono_mb_emit_stloc (mb, conv_arg);
7249 mono_mb_patch_branch (mb, label_false);
7252 mono_mb_patch_branch (mb, label_null);
7256 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7257 guint8 stop = CEE_STIND_I4;
7258 guint8 ldc_op = CEE_LDC_I4_1;
7259 int label_null,label_false, label_end;;
7264 switch (spec->native) {
7265 case MONO_NATIVE_I1:
7266 case MONO_NATIVE_U1:
7267 stop = CEE_STIND_I1;
7269 case MONO_NATIVE_VARIANTBOOL:
7270 stop = CEE_STIND_I2;
7271 ldc_op = CEE_LDC_I4_M1;
7279 mono_mb_emit_ldarg (mb, argnum);
7280 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7282 mono_mb_emit_ldarg (mb, argnum);
7283 mono_mb_emit_ldloc (mb, conv_arg);
7285 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7286 mono_mb_emit_byte (mb, ldc_op);
7287 label_end = mono_mb_emit_branch (mb, CEE_BR);
7289 mono_mb_patch_branch (mb, label_false);
7290 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7291 mono_mb_patch_branch (mb, label_end);
7293 mono_mb_emit_byte (mb, stop);
7294 mono_mb_patch_branch (mb, label_null);
7299 g_assert_not_reached ();
7306 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7307 MonoMarshalSpec *spec, int conv_arg,
7308 MonoType **conv_arg_type, MarshalAction action)
7310 MonoMethodBuilder *mb = m->mb;
7313 case MARSHAL_ACTION_CONV_IN:
7314 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7315 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7316 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7320 case MARSHAL_ACTION_PUSH:
7321 mono_mb_emit_ldarg (mb, argnum);
7324 case MARSHAL_ACTION_CONV_RESULT:
7325 /* no conversions necessary */
7326 mono_mb_emit_stloc (mb, 3);
7337 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7338 MonoMarshalSpec *spec, int conv_arg,
7339 MonoType **conv_arg_type, MarshalAction action)
7341 MonoMethodBuilder *mb = m->mb;
7344 case MARSHAL_ACTION_PUSH:
7345 /* fixme: dont know how to marshal that. We cant simply
7346 * convert it to a one byte UTF8 character, because an
7347 * unicode character may need more that one byte in UTF8 */
7348 mono_mb_emit_ldarg (mb, argnum);
7351 case MARSHAL_ACTION_CONV_RESULT:
7352 /* fixme: we need conversions here */
7353 mono_mb_emit_stloc (mb, 3);
7364 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7365 MonoMarshalSpec *spec, int conv_arg,
7366 MonoType **conv_arg_type, MarshalAction action)
7368 MonoMethodBuilder *mb = m->mb;
7371 case MARSHAL_ACTION_PUSH:
7372 mono_mb_emit_ldarg (mb, argnum);
7375 case MARSHAL_ACTION_CONV_RESULT:
7376 /* no conversions necessary */
7377 mono_mb_emit_stloc (mb, 3);
7388 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7389 MonoMarshalSpec *spec, int conv_arg,
7390 MonoType **conv_arg_type, MarshalAction action)
7392 /* Ensure that we have marshalling info for this param */
7393 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7395 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7396 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7398 if (spec && spec->native == MONO_NATIVE_ASANY)
7399 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7402 case MONO_TYPE_VALUETYPE:
7403 if (t->data.klass == mono_defaults.handleref_class)
7404 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7406 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7407 case MONO_TYPE_STRING:
7408 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7409 case MONO_TYPE_CLASS:
7410 case MONO_TYPE_OBJECT:
7411 if (spec && spec->native == MONO_NATIVE_STRUCT)
7412 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7415 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7416 spec->native == MONO_NATIVE_IDISPATCH ||
7417 spec->native == MONO_NATIVE_INTERFACE))
7418 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7419 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7420 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7421 (action == MARSHAL_ACTION_CONV_OUT))
7422 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7425 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7426 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7427 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7429 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7430 case MONO_TYPE_ARRAY:
7431 case MONO_TYPE_SZARRAY:
7432 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7433 case MONO_TYPE_BOOLEAN:
7434 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7436 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7437 case MONO_TYPE_CHAR:
7438 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7451 case MONO_TYPE_FNPTR:
7452 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7453 case MONO_TYPE_GENERICINST:
7454 if (mono_type_generic_inst_is_valuetype (t))
7455 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7457 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7464 * mono_marshal_emit_native_wrapper:
7465 * @image: the image to use for looking up custom marshallers
7466 * @sig: The signature of the native function
7467 * @piinfo: Marshalling information
7468 * @mspecs: Marshalling information
7469 * @aot: whenever the created method will be compiled by the AOT compiler
7470 * @method: if non-NULL, the pinvoke method to call
7471 * @check_exceptions: Whenever to check for pending exceptions after the native call
7473 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7476 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7478 EmitMarshalContext m;
7479 MonoMethodSignature *csig;
7481 int i, argnum, *tmp_locals;
7483 static MonoMethodSignature *get_last_error_sig = NULL;
7488 /* we copy the signature, so that we can set pinvoke to 0 */
7489 csig = signature_dup (mb->method->klass->image, sig);
7494 /* we allocate local for use with emit_struct_conv() */
7495 /* allocate local 0 (pointer) src_ptr */
7496 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7497 /* allocate local 1 (pointer) dst_ptr */
7498 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7499 /* allocate local 2 (boolean) delete_old */
7500 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7502 /* delete_old = FALSE */
7503 mono_mb_emit_icon (mb, 0);
7504 mono_mb_emit_stloc (mb, 2);
7506 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7507 /* allocate local 3 to store the return value */
7508 mono_mb_add_local (mb, sig->ret);
7511 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7512 /* Return type custom marshaling */
7514 * Since we can't determine the return type of the unmanaged function,
7515 * we assume it returns a pointer, and pass that pointer to
7516 * MarshalNativeToManaged.
7518 csig->ret = &mono_defaults.int_class->byval_arg;
7521 /* we first do all conversions */
7522 tmp_locals = alloca (sizeof (int) * sig->param_count);
7523 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7525 for (i = 0; i < sig->param_count; i ++) {
7526 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7529 /* push all arguments */
7532 mono_mb_emit_byte (mb, CEE_LDARG_0);
7534 for (i = 0; i < sig->param_count; i++) {
7535 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7538 /* call the native method */
7539 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7541 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7543 g_assert_not_reached ();
7548 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7549 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7550 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7551 mono_mb_emit_calli (mb, csig);
7553 mono_mb_emit_native_call (mb, csig, func);
7557 /* Set LastError if needed */
7558 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7559 if (!get_last_error_sig) {
7560 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7561 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7562 get_last_error_sig->pinvoke = 1;
7565 #ifdef PLATFORM_WIN32
7567 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7568 * clobber its value.
7570 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7571 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7573 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7577 /* convert the result */
7578 if (!sig->ret->byref) {
7579 MonoMarshalSpec *spec = mspecs [0];
7580 type = sig->ret->type;
7582 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7583 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7588 case MONO_TYPE_VOID:
7590 case MONO_TYPE_VALUETYPE:
7591 klass = sig->ret->data.klass;
7592 if (klass->enumtype) {
7593 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7596 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7610 case MONO_TYPE_FNPTR:
7611 case MONO_TYPE_STRING:
7612 case MONO_TYPE_CLASS:
7613 case MONO_TYPE_OBJECT:
7614 case MONO_TYPE_BOOLEAN:
7615 case MONO_TYPE_ARRAY:
7616 case MONO_TYPE_SZARRAY:
7617 case MONO_TYPE_CHAR:
7619 case MONO_TYPE_GENERICINST:
7620 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7622 case MONO_TYPE_TYPEDBYREF:
7624 g_warning ("return type 0x%02x unknown", sig->ret->type);
7625 g_assert_not_reached ();
7629 mono_mb_emit_stloc (mb, 3);
7633 * Need to call this after converting the result since MONO_VTADDR needs
7634 * to be adjacent to the call instruction.
7636 if (check_exceptions)
7637 emit_thread_interrupt_checkpoint (mb);
7639 /* we need to convert byref arguments back and free string arrays */
7640 for (i = 0; i < sig->param_count; i++) {
7641 MonoType *t = sig->params [i];
7642 MonoMarshalSpec *spec = mspecs [i + 1];
7644 argnum = i + sig->hasthis;
7646 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7647 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7652 case MONO_TYPE_STRING:
7653 case MONO_TYPE_VALUETYPE:
7654 case MONO_TYPE_CLASS:
7655 case MONO_TYPE_OBJECT:
7656 case MONO_TYPE_SZARRAY:
7657 case MONO_TYPE_BOOLEAN:
7658 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7663 if (!MONO_TYPE_IS_VOID(sig->ret))
7664 mono_mb_emit_ldloc (mb, 3);
7666 mono_mb_emit_byte (mb, CEE_RET);
7670 * mono_marshal_get_native_wrapper:
7671 * @method: The MonoMethod to wrap.
7672 * @check_exceptions: Whenever to check for pending exceptions
7674 * generates IL code for the pinvoke wrapper (the generated method
7675 * calls the unmanaged code in piinfo->addr)
7678 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7680 MonoMethodSignature *sig, *csig;
7681 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7682 MonoMethodBuilder *mb;
7683 MonoMarshalSpec **mspecs;
7686 gboolean pinvoke = FALSE;
7689 const char *exc_class = "MissingMethodException";
7690 const char *exc_arg = NULL;
7692 g_assert (method != NULL);
7693 g_assert (mono_method_signature (method)->pinvoke);
7696 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7698 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7699 if ((res = mono_marshal_find_in_cache (cache, method)))
7702 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7704 return mono_cominterop_get_native_wrapper (method);
7706 g_assert_not_reached ();
7710 sig = mono_method_signature (method);
7712 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7713 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7716 if (!piinfo->addr) {
7718 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7719 exc_arg = "Method contains unsupported native code";
7721 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7723 piinfo->addr = mono_lookup_internal_call (method);
7726 /* hack - redirect certain string constructors to CreateString */
7727 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7728 g_assert (!pinvoke);
7729 g_assert (method->string_ctor);
7730 g_assert (sig->hasthis);
7732 /* CreateString returns a value */
7733 csig = signature_dup (method->klass->image, sig);
7734 csig->ret = &mono_defaults.string_class->byval_arg;
7738 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7739 if (!strcmp ("CreateString", res->name) &&
7740 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7742 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7743 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7745 /* create a wrapper to preserve .ctor in stack trace */
7746 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7748 mono_mb_emit_byte (mb, CEE_LDARG_0);
7749 for (i = 1; i <= csig->param_count; i++)
7750 mono_mb_emit_ldarg (mb, i);
7751 mono_mb_emit_managed_call (mb, res, NULL);
7752 mono_mb_emit_byte (mb, CEE_RET);
7754 /* use native_wrapper_cache because internal calls are looked up there */
7755 res = mono_mb_create_and_cache (cache, method,
7756 mb, csig, csig->param_count + 1);
7764 /* exception will be thrown */
7765 piinfo->addr = NULL;
7766 g_warning ("cannot find CreateString for .ctor");
7769 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7771 mb->method->save_lmf = 1;
7774 * In AOT mode and embedding scenarios, it is possible that the icall is not
7775 * registered in the runtime doing the AOT compilation.
7777 if (!piinfo->addr && !aot) {
7778 mono_mb_emit_exception (mb, exc_class, exc_arg);
7779 csig = signature_dup (method->klass->image, sig);
7781 res = mono_mb_create_and_cache (cache, method,
7782 mb, csig, csig->param_count + 16);
7787 /* internal calls: we simply push all arguments and call the method (no conversions) */
7788 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7790 /* hack - string constructors returns a value */
7791 if (method->string_ctor) {
7792 csig = signature_dup (method->klass->image, sig);
7793 csig->ret = &mono_defaults.string_class->byval_arg;
7798 mono_mb_emit_byte (mb, CEE_LDARG_0);
7800 for (i = 0; i < sig->param_count; i++)
7801 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7804 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7805 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7806 mono_mb_emit_calli (mb, csig);
7808 g_assert (piinfo->addr);
7809 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7811 if (check_exceptions)
7812 emit_thread_interrupt_checkpoint (mb);
7813 mono_mb_emit_byte (mb, CEE_RET);
7815 csig = signature_dup (method->klass->image, csig);
7817 res = mono_mb_create_and_cache (cache, method,
7818 mb, csig, csig->param_count + 16);
7825 g_assert (piinfo->addr);
7827 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7828 mono_method_get_marshal_info (method, mspecs);
7830 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
7832 csig = signature_dup (method->klass->image, sig);
7834 res = mono_mb_create_and_cache (cache, method,
7835 mb, csig, csig->param_count + 16);
7838 for (i = sig->param_count; i >= 0; i--)
7840 mono_metadata_free_marshal_spec (mspecs [i]);
7843 /* 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)); */
7849 * mono_marshal_get_native_func_wrapper:
7850 * @image: The image to use for memory allocation and for looking up custom marshallers.
7851 * @sig: The signature of the function
7852 * @func: The native function to wrap
7854 * Returns a wrapper method around native functions, similar to the pinvoke
7858 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7859 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7861 MonoMethodSignature *csig;
7863 MonoMethodBuilder *mb;
7868 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7869 if ((res = mono_marshal_find_in_cache (cache, func)))
7872 name = g_strdup_printf ("wrapper_native_%p", func);
7873 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7874 mb->method->save_lmf = 1;
7876 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
7878 csig = signature_dup (image, sig);
7880 res = mono_mb_create_and_cache (cache, func,
7881 mb, csig, csig->param_count + 16);
7884 /* 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)); */
7890 * mono_marshal_emit_managed_wrapper:
7892 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7893 * the delegate which wraps the managed method to be called. For closed delegates,
7894 * it could have fewer parameters than the method it wraps.
7895 * THIS_LOC is the memory location where the target of the delegate is stored.
7898 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
7900 MonoMethodSignature *sig, *csig;
7902 gboolean closed = FALSE;
7907 /* allocate local 0 (pointer) src_ptr */
7908 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7909 /* allocate local 1 (pointer) dst_ptr */
7910 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7911 /* allocate local 2 (boolean) delete_old */
7912 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7914 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7915 /* Closed delegate */
7916 g_assert (sig->param_count == invoke_sig->param_count + 1);
7918 /* Use a new signature without the first argument */
7919 sig = mono_metadata_signature_dup (sig);
7920 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7921 sig->param_count --;
7924 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7925 /* allocate local 3 to store the return value */
7926 mono_mb_add_local (mb, sig->ret);
7929 mono_mb_emit_icon (mb, 0);
7930 mono_mb_emit_stloc (mb, 2);
7932 /* we first do all conversions */
7933 tmp_locals = alloca (sizeof (int) * sig->param_count);
7934 for (i = 0; i < sig->param_count; i ++) {
7935 MonoType *t = sig->params [i];
7938 case MONO_TYPE_OBJECT:
7939 case MONO_TYPE_CLASS:
7940 case MONO_TYPE_VALUETYPE:
7941 case MONO_TYPE_ARRAY:
7942 case MONO_TYPE_SZARRAY:
7943 case MONO_TYPE_STRING:
7944 case MONO_TYPE_BOOLEAN:
7945 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7954 emit_thread_interrupt_checkpoint (mb);
7958 mono_mb_emit_ptr (mb, this_loc);
7959 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7962 g_assert_not_reached ();
7964 } else if (closed) {
7965 mono_mb_emit_ptr (mb, this_loc);
7966 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7969 for (i = 0; i < sig->param_count; i++) {
7970 MonoType *t = sig->params [i];
7972 if (tmp_locals [i]) {
7974 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7976 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7979 mono_mb_emit_ldarg (mb, i);
7982 mono_mb_emit_managed_call (mb, method, NULL);
7984 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7985 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7986 } else if (!sig->ret->byref) {
7987 switch (sig->ret->type) {
7988 case MONO_TYPE_VOID:
7990 case MONO_TYPE_BOOLEAN:
7993 case MONO_TYPE_CHAR:
8005 case MONO_TYPE_OBJECT:
8006 mono_mb_emit_stloc (mb, 3);
8008 case MONO_TYPE_STRING:
8009 csig->ret = &mono_defaults.int_class->byval_arg;
8010 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8012 case MONO_TYPE_VALUETYPE:
8013 case MONO_TYPE_CLASS:
8014 case MONO_TYPE_SZARRAY:
8015 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8018 g_warning ("return type 0x%02x unknown", sig->ret->type);
8019 g_assert_not_reached ();
8022 mono_mb_emit_stloc (mb, 3);
8025 /* Convert byref arguments back */
8026 for (i = 0; i < sig->param_count; i ++) {
8027 MonoType *t = sig->params [i];
8028 MonoMarshalSpec *spec = mspecs [i + 1];
8030 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8031 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8033 else if (t->byref) {
8035 case MONO_TYPE_CLASS:
8036 case MONO_TYPE_VALUETYPE:
8037 case MONO_TYPE_OBJECT:
8038 case MONO_TYPE_STRING:
8039 case MONO_TYPE_BOOLEAN:
8040 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8044 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8045 /* The [Out] information is encoded in the delegate signature */
8047 case MONO_TYPE_SZARRAY:
8048 case MONO_TYPE_CLASS:
8049 case MONO_TYPE_VALUETYPE:
8050 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8053 g_assert_not_reached ();
8058 if (m->retobj_var) {
8059 mono_mb_emit_ldloc (mb, m->retobj_var);
8060 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8061 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8064 if (!MONO_TYPE_IS_VOID(sig->ret))
8065 mono_mb_emit_ldloc (mb, 3);
8066 mono_mb_emit_byte (mb, CEE_RET);
8075 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8077 MonoMethodSignature *sig;
8080 #ifdef PLATFORM_WIN32
8082 * Under windows, delegates passed to native code must use the STDCALL
8083 * calling convention.
8085 csig->call_convention = MONO_CALL_STDCALL;
8088 sig = mono_method_signature (method);
8090 /* Change default calling convention if needed */
8091 /* Why is this a modopt ? */
8092 if (sig->ret && sig->ret->num_mods) {
8093 for (i = 0; i < sig->ret->num_mods; ++i) {
8094 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8095 g_assert (cmod_class);
8096 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8097 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8098 csig->call_convention = MONO_CALL_C;
8099 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8100 csig->call_convention = MONO_CALL_STDCALL;
8101 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8102 csig->call_convention = MONO_CALL_FASTCALL;
8103 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8104 csig->call_convention = MONO_CALL_THISCALL;
8111 * generates IL code to call managed methods from unmanaged code
8114 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8116 static MonoClass *UnmanagedFunctionPointerAttribute;
8117 MonoMethodSignature *sig, *csig, *invoke_sig;
8118 MonoMethodBuilder *mb;
8119 MonoMethod *res, *invoke;
8120 MonoMarshalSpec **mspecs;
8121 MonoMethodPInvoke piinfo;
8124 EmitMarshalContext m;
8126 g_assert (method != NULL);
8127 g_assert (!mono_method_signature (method)->pinvoke);
8130 * FIXME: Should cache the method+delegate type pair, since the same method
8131 * could be called with different delegates, thus different marshalling
8134 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8135 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8138 invoke = mono_get_delegate_invoke (delegate_klass);
8139 invoke_sig = mono_method_signature (invoke);
8141 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8142 mono_method_get_marshal_info (invoke, mspecs);
8144 sig = mono_method_signature (method);
8146 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8148 /* we copy the signature, so that we can modify it */
8150 /* Need to free this later */
8151 csig = mono_metadata_signature_dup (invoke_sig);
8153 csig = signature_dup (method->klass->image, invoke_sig);
8162 m.image = method->klass->image;
8164 mono_marshal_set_callconv_from_modopt (invoke, csig);
8166 /* Handle the UnmanagedFunctionPointerAttribute */
8167 if (!UnmanagedFunctionPointerAttribute)
8168 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8170 /* The attribute is only available in Net 2.0 */
8171 if (UnmanagedFunctionPointerAttribute) {
8172 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8173 MonoCustomAttrInfo *cinfo;
8176 * The pinvoke attributes are stored in a real custom attribute so we have to
8179 cinfo = mono_custom_attrs_from_class (delegate_klass);
8181 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8183 memset (&piinfo, 0, sizeof (piinfo));
8185 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8187 csig->call_convention = attr->call_conv - 1;
8190 mono_custom_attrs_free (cinfo);
8194 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8197 res = mono_mb_create_and_cache (cache, method,
8198 mb, csig, sig->param_count + 16);
8201 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8205 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8207 mono_metadata_free_marshal_spec (mspecs [i]);
8210 /* 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)); */
8216 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8219 MonoMethodSignature *sig;
8220 MonoMethodBuilder *mb;
8225 method = mono_get_method (image, token, NULL);
8228 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8229 MonoMethodSignature *csig;
8230 MonoMarshalSpec **mspecs;
8231 EmitMarshalContext m;
8233 sig = mono_method_signature (method);
8234 g_assert (!sig->hasthis);
8236 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8237 mono_method_get_marshal_info (method, mspecs);
8239 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8240 csig = signature_dup (image, sig);
8251 mono_marshal_set_callconv_from_modopt (method, csig);
8253 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8255 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8258 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8261 for (i = sig->param_count; i >= 0; i--)
8263 mono_metadata_free_marshal_spec (mspecs [i]);
8266 return mono_compile_method (method);
8269 sig = mono_method_signature (method);
8270 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8272 param_count = sig->param_count + sig->hasthis;
8273 for (i = 0; i < param_count; i++)
8274 mono_mb_emit_ldarg (mb, i);
8276 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8277 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8279 mono_mb_emit_op (mb, CEE_CALL, method);
8280 mono_mb_emit_byte (mb, CEE_RET);
8283 method = mono_mb_create_method (mb, sig, param_count);
8286 return mono_compile_method (method);
8289 static MonoReflectionType *
8290 type_from_handle (MonoType *handle)
8292 MonoDomain *domain = mono_domain_get ();
8293 MonoClass *klass = mono_class_from_mono_type (handle);
8295 MONO_ARCH_SAVE_REGS;
8297 mono_class_init (klass);
8298 return mono_type_get_object (domain, handle);
8302 * mono_marshal_get_isinst:
8303 * @klass: the type of the field
8305 * This method generates a function which can be used to check if an object is
8306 * an instance of the given type, icluding the case where the object is a proxy.
8307 * The generated function has the following signature:
8308 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8311 mono_marshal_get_isinst (MonoClass *klass)
8313 static MonoMethodSignature *isint_sig = NULL;
8316 int pos_was_ok, pos_failed, pos_end, pos_end2;
8318 MonoMethodBuilder *mb;
8320 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8321 if ((res = mono_marshal_find_in_cache (cache, klass)))
8325 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8326 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8327 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8328 isint_sig->pinvoke = 0;
8331 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8332 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8335 mb->method->save_lmf = 1;
8337 /* check if the object is a proxy that needs special cast */
8338 mono_mb_emit_ldarg (mb, 0);
8339 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8340 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8342 /* The result of MONO_ISINST can be:
8343 0) the type check succeeded
8344 1) the type check did not succeed
8345 2) a CanCastTo call is needed */
8347 mono_mb_emit_byte (mb, CEE_DUP);
8348 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8350 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8351 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8353 /* get the real proxy from the transparent proxy*/
8355 mono_mb_emit_ldarg (mb, 0);
8356 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8357 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8361 mono_mb_patch_branch (mb, pos_failed);
8362 mono_mb_emit_byte (mb, CEE_LDNULL);
8363 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8367 mono_mb_patch_branch (mb, pos_was_ok);
8368 mono_mb_emit_byte (mb, CEE_POP);
8369 mono_mb_emit_ldarg (mb, 0);
8373 mono_mb_patch_branch (mb, pos_end);
8374 mono_mb_patch_branch (mb, pos_end2);
8375 mono_mb_emit_byte (mb, CEE_RET);
8377 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8384 * mono_marshal_get_castclass:
8385 * @klass: the type of the field
8387 * This method generates a function which can be used to cast an object to
8388 * an instance of the given type, icluding the case where the object is a proxy.
8389 * The generated function has the following signature:
8390 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8393 mono_marshal_get_castclass (MonoClass *klass)
8395 static MonoMethodSignature *castclass_sig = NULL;
8398 int pos_was_ok, pos_was_ok2;
8400 MonoMethodBuilder *mb;
8402 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8403 if ((res = mono_marshal_find_in_cache (cache, klass)))
8406 if (!castclass_sig) {
8407 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8408 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8409 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8410 castclass_sig->pinvoke = 0;
8413 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8414 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8417 mb->method->save_lmf = 1;
8419 /* check if the object is a proxy that needs special cast */
8420 mono_mb_emit_ldarg (mb, 0);
8421 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8422 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8424 /* The result of MONO_ISINST can be:
8425 0) the cast is valid
8426 1) cast of unknown proxy type
8427 or an exception if the cast is is invalid
8430 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8432 /* get the real proxy from the transparent proxy*/
8434 mono_mb_emit_ldarg (mb, 0);
8435 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8436 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8439 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8442 mono_mb_patch_branch (mb, pos_was_ok);
8443 mono_mb_patch_branch (mb, pos_was_ok2);
8444 mono_mb_emit_ldarg (mb, 0);
8447 mono_mb_emit_byte (mb, CEE_RET);
8449 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8456 mono_marshal_get_proxy_cancast (MonoClass *klass)
8458 static MonoMethodSignature *isint_sig = NULL;
8461 int pos_failed, pos_end;
8463 MonoMethod *can_cast_to;
8464 MonoMethodDesc *desc;
8465 MonoMethodBuilder *mb;
8467 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8468 if ((res = mono_marshal_find_in_cache (cache, klass)))
8472 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8473 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8474 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8475 isint_sig->pinvoke = 0;
8478 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8479 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8482 mb->method->save_lmf = 1;
8484 /* get the real proxy from the transparent proxy*/
8485 mono_mb_emit_ldarg (mb, 0);
8486 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8487 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8489 /* get the reflection type from the type handle */
8490 mono_mb_emit_ptr (mb, &klass->byval_arg);
8491 mono_mb_emit_icall (mb, type_from_handle);
8493 mono_mb_emit_ldarg (mb, 0);
8495 /* make the call to CanCastTo (type, ob) */
8496 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8497 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8498 g_assert (can_cast_to);
8499 mono_method_desc_free (desc);
8500 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8502 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8504 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8505 mono_mb_emit_ptr (mb, &klass->byval_arg);
8506 mono_mb_emit_icall (mb, type_from_handle);
8507 mono_mb_emit_ldarg (mb, 0);
8509 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8510 emit_thread_interrupt_checkpoint (mb);
8512 mono_mb_emit_ldarg (mb, 0);
8513 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8517 mono_mb_patch_branch (mb, pos_failed);
8518 mono_mb_emit_byte (mb, CEE_LDNULL);
8522 mono_mb_patch_branch (mb, pos_end);
8523 mono_mb_emit_byte (mb, CEE_RET);
8525 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8532 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8535 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8536 klass = mono_class_from_mono_type (rtype->type);
8537 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8541 * mono_marshal_get_struct_to_ptr:
8544 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8547 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8549 MonoMethodBuilder *mb;
8550 static MonoMethod *stoptr = NULL;
8553 g_assert (klass != NULL);
8555 mono_marshal_load_type_info (klass);
8557 if (klass->marshal_info->str_to_ptr)
8558 return klass->marshal_info->str_to_ptr;
8561 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8564 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8566 if (klass->blittable) {
8567 mono_mb_emit_byte (mb, CEE_LDARG_1);
8568 mono_mb_emit_byte (mb, CEE_LDARG_0);
8569 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8570 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8571 mono_mb_emit_byte (mb, CEE_PREFIX1);
8572 mono_mb_emit_byte (mb, CEE_CPBLK);
8575 /* allocate local 0 (pointer) src_ptr */
8576 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8577 /* allocate local 1 (pointer) dst_ptr */
8578 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8579 /* allocate local 2 (boolean) delete_old */
8580 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8581 mono_mb_emit_byte (mb, CEE_LDARG_2);
8582 mono_mb_emit_stloc (mb, 2);
8584 /* initialize src_ptr to point to the start of object data */
8585 mono_mb_emit_byte (mb, CEE_LDARG_0);
8586 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8587 mono_mb_emit_stloc (mb, 0);
8589 /* initialize dst_ptr */
8590 mono_mb_emit_byte (mb, CEE_LDARG_1);
8591 mono_mb_emit_stloc (mb, 1);
8593 emit_struct_conv (mb, klass, FALSE);
8596 mono_mb_emit_byte (mb, CEE_RET);
8598 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
8601 klass->marshal_info->str_to_ptr = res;
8606 * mono_marshal_get_ptr_to_struct:
8609 * generates IL code for PtrToStructure (IntPtr src, object structure)
8612 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8614 MonoMethodBuilder *mb;
8615 static MonoMethodSignature *ptostr = NULL;
8618 g_assert (klass != NULL);
8620 mono_marshal_load_type_info (klass);
8622 if (klass->marshal_info->ptr_to_str)
8623 return klass->marshal_info->ptr_to_str;
8626 MonoMethodSignature *sig;
8628 /* Create the signature corresponding to
8629 static void PtrToStructure (IntPtr ptr, object structure);
8630 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8631 sig = mono_create_icall_signature ("void ptr object");
8632 sig = signature_dup (mono_defaults.corlib, sig);
8634 mono_memory_barrier ();
8638 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8640 if (klass->blittable) {
8641 mono_mb_emit_byte (mb, CEE_LDARG_1);
8642 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8643 mono_mb_emit_byte (mb, CEE_LDARG_0);
8644 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8645 mono_mb_emit_byte (mb, CEE_PREFIX1);
8646 mono_mb_emit_byte (mb, CEE_CPBLK);
8649 /* allocate local 0 (pointer) src_ptr */
8650 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8651 /* allocate local 1 (pointer) dst_ptr */
8652 mono_mb_add_local (mb, &klass->this_arg);
8654 /* initialize src_ptr to point to the start of object data */
8655 mono_mb_emit_byte (mb, CEE_LDARG_0);
8656 mono_mb_emit_stloc (mb, 0);
8658 /* initialize dst_ptr */
8659 mono_mb_emit_byte (mb, CEE_LDARG_1);
8660 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8661 mono_mb_emit_stloc (mb, 1);
8663 emit_struct_conv (mb, klass, TRUE);
8666 mono_mb_emit_byte (mb, CEE_RET);
8668 res = mono_mb_create_method (mb, ptostr, 0);
8671 klass->marshal_info->ptr_to_str = res;
8676 * generates IL code for the synchronized wrapper: the generated method
8677 * calls METHOD while locking 'this' or the parent type.
8680 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8682 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8683 MonoMethodSignature *sig;
8684 MonoExceptionClause *clause;
8685 MonoMethodBuilder *mb;
8688 int i, pos, this_local, ret_local = 0;
8692 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8695 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8696 if ((res = mono_marshal_find_in_cache (cache, method)))
8699 sig = signature_dup (method->klass->image, mono_method_signature (method));
8702 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8705 if (!MONO_TYPE_IS_VOID (sig->ret))
8706 ret_local = mono_mb_add_local (mb, sig->ret);
8708 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8709 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8710 /* This will throw the type load exception when the wrapper is compiled */
8711 mono_mb_emit_byte (mb, CEE_LDNULL);
8712 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8713 mono_mb_emit_byte (mb, CEE_POP);
8715 if (!MONO_TYPE_IS_VOID (sig->ret))
8716 mono_mb_emit_ldloc (mb, ret_local);
8717 mono_mb_emit_byte (mb, CEE_RET);
8719 res = mono_mb_create_and_cache (cache, method,
8720 mb, sig, sig->param_count + 16);
8727 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8729 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8730 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8732 mono_loader_lock ();
8734 if (!enter_method) {
8735 MonoMethodDesc *desc;
8737 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8738 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8739 g_assert (enter_method);
8740 mono_method_desc_free (desc);
8742 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8743 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8744 g_assert (exit_method);
8745 mono_method_desc_free (desc);
8747 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8748 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
8749 g_assert (gettypefromhandle_method);
8750 mono_method_desc_free (desc);
8753 mono_loader_unlock ();
8755 /* Push this or the type object */
8756 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8757 /* We have special handling for this in the JIT */
8758 int index = mono_mb_add_data (mb, method->klass);
8759 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8760 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8761 mono_mb_emit_i4 (mb, index);
8763 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8766 mono_mb_emit_ldarg (mb, 0);
8767 mono_mb_emit_stloc (mb, this_local);
8769 /* Call Monitor::Enter() */
8770 mono_mb_emit_ldloc (mb, this_local);
8771 mono_mb_emit_managed_call (mb, enter_method, NULL);
8773 clause->try_offset = mono_mb_get_label (mb);
8775 /* Call the method */
8777 mono_mb_emit_ldarg (mb, 0);
8778 for (i = 0; i < sig->param_count; i++)
8779 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8781 mono_mb_emit_managed_call (mb, method, NULL);
8783 if (!MONO_TYPE_IS_VOID (sig->ret))
8784 mono_mb_emit_stloc (mb, ret_local);
8786 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8788 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8789 clause->handler_offset = mono_mb_get_label (mb);
8791 /* Call Monitor::Exit() */
8792 mono_mb_emit_ldloc (mb, this_local);
8793 mono_mb_emit_managed_call (mb, exit_method, NULL);
8794 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8796 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8798 mono_mb_patch_branch (mb, pos);
8799 if (!MONO_TYPE_IS_VOID (sig->ret))
8800 mono_mb_emit_ldloc (mb, ret_local);
8801 mono_mb_emit_byte (mb, CEE_RET);
8803 mono_mb_set_clauses (mb, 1, clause);
8805 res = mono_mb_create_and_cache (cache, method,
8806 mb, sig, sig->param_count + 16);
8814 * the returned method calls 'method' unboxing the this argument
8817 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8819 MonoMethodSignature *sig = mono_method_signature (method);
8821 MonoMethodBuilder *mb;
8825 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8826 if ((res = mono_marshal_find_in_cache (cache, method)))
8829 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8831 g_assert (sig->hasthis);
8833 mono_mb_emit_ldarg (mb, 0);
8834 mono_mb_emit_icon (mb, sizeof (MonoObject));
8835 mono_mb_emit_byte (mb, CEE_ADD);
8836 for (i = 0; i < sig->param_count; ++i)
8837 mono_mb_emit_ldarg (mb, i + 1);
8838 mono_mb_emit_managed_call (mb, method, NULL);
8839 mono_mb_emit_byte (mb, CEE_RET);
8841 res = mono_mb_create_and_cache (cache, method,
8842 mb, sig, sig->param_count + 16);
8845 /* 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)); */
8851 mono_marshal_get_stelemref ()
8853 static MonoMethod* ret = NULL;
8854 MonoMethodSignature *sig;
8855 MonoMethodBuilder *mb;
8857 guint32 b1, b2, b3, b4;
8860 int array_slot_addr;
8865 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8868 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8870 /* void stelemref (void* array, int idx, void* value) */
8871 sig->ret = &mono_defaults.void_class->byval_arg;
8872 sig->params [0] = &mono_defaults.object_class->byval_arg;
8873 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8874 sig->params [2] = &mono_defaults.object_class->byval_arg;
8876 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8877 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8878 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8882 <ldelema (bound check)>
8886 aklass = array->vtable->klass->element_class;
8887 vklass = value->vtable->klass;
8889 if (vklass->idepth < aklass->idepth)
8892 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8896 *array_slot_addr = value;
8900 if (mono_object_isinst (value, aklass))
8903 throw new ArrayTypeMismatchException ();
8906 /* ldelema (implicit bound check) */
8907 mono_mb_emit_ldarg (mb, 0);
8908 mono_mb_emit_ldarg (mb, 1);
8909 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8910 mono_mb_emit_stloc (mb, array_slot_addr);
8912 /* if (!value) goto do_store */
8913 mono_mb_emit_ldarg (mb, 2);
8914 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8916 /* aklass = array->vtable->klass->element_class */
8917 mono_mb_emit_ldarg (mb, 0);
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_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
8923 mono_mb_emit_byte (mb, CEE_LDIND_I);
8924 mono_mb_emit_stloc (mb, aklass);
8926 /* vklass = value->vtable->klass */
8927 mono_mb_emit_ldarg (mb, 2);
8928 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8929 mono_mb_emit_byte (mb, CEE_LDIND_I);
8930 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8931 mono_mb_emit_byte (mb, CEE_LDIND_I);
8932 mono_mb_emit_stloc (mb, vklass);
8934 /* if (vklass->idepth < aklass->idepth) goto failue */
8935 mono_mb_emit_ldloc (mb, vklass);
8936 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8937 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8939 mono_mb_emit_ldloc (mb, aklass);
8940 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8941 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8943 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
8945 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
8946 mono_mb_emit_ldloc (mb, vklass);
8947 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
8948 mono_mb_emit_byte (mb, CEE_LDIND_I);
8950 mono_mb_emit_ldloc (mb, aklass);
8951 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8952 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8953 mono_mb_emit_icon (mb, 1);
8954 mono_mb_emit_byte (mb, CEE_SUB);
8955 mono_mb_emit_icon (mb, sizeof (void*));
8956 mono_mb_emit_byte (mb, CEE_MUL);
8957 mono_mb_emit_byte (mb, CEE_ADD);
8958 mono_mb_emit_byte (mb, CEE_LDIND_I);
8960 mono_mb_emit_ldloc (mb, aklass);
8962 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
8964 copy_pos = mono_mb_get_label (mb);
8966 mono_mb_patch_branch (mb, b1);
8967 mono_mb_emit_ldloc (mb, array_slot_addr);
8968 mono_mb_emit_ldarg (mb, 2);
8969 mono_mb_emit_byte (mb, CEE_STIND_REF);
8971 mono_mb_emit_byte (mb, CEE_RET);
8974 mono_mb_patch_branch (mb, b2);
8975 mono_mb_patch_branch (mb, b3);
8977 mono_mb_emit_ldarg (mb, 2);
8978 mono_mb_emit_ldloc (mb, aklass);
8979 mono_mb_emit_icall (mb, mono_object_isinst);
8981 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8982 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
8983 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8985 mono_mb_emit_byte (mb, CEE_RET);
8986 ret = mono_mb_create_method (mb, sig, 4);
8997 /* LOCKING: vars accessed under the marshal lock */
8998 static ArrayElemAddr *elem_addr_cache = NULL;
8999 static int elem_addr_cache_size = 0;
9000 static int elem_addr_cache_next = 0;
9003 * mono_marshal_get_array_address:
9004 * @rank: rank of the array type
9005 * @elem_size: size in bytes of an element of an array.
9007 * Returns a MonoMethd that implements the code to get the address
9008 * of an element in a multi-dimenasional array of @rank dimensions.
9009 * The returned method takes an array as the first argument and then
9010 * @rank indexes for the @rank dimensions.
9013 mono_marshal_get_array_address (int rank, int elem_size)
9016 MonoMethodBuilder *mb;
9017 MonoMethodSignature *sig;
9018 int i, bounds, ind, realidx;
9019 int branch_pos, *branch_positions;
9023 mono_marshal_lock ();
9024 for (i = 0; i < elem_addr_cache_next; ++i) {
9025 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9026 ret = elem_addr_cache [i].method;
9030 mono_marshal_unlock ();
9034 branch_positions = g_new0 (int, rank);
9036 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9038 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9039 sig->ret = &mono_defaults.int_class->byval_arg;
9040 sig->params [0] = &mono_defaults.object_class->byval_arg;
9041 for (i = 0; i < rank; ++i) {
9042 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9045 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9047 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9048 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9049 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9051 /* bounds = array->bounds; */
9052 mono_mb_emit_ldarg (mb, 0);
9053 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9054 mono_mb_emit_byte (mb, CEE_LDIND_I);
9055 mono_mb_emit_stloc (mb, bounds);
9057 /* ind is the overall element index, realidx is the partial index in a single dimension */
9058 /* ind = idx0 - bounds [0].lower_bound */
9059 mono_mb_emit_ldarg (mb, 1);
9060 mono_mb_emit_ldloc (mb, bounds);
9061 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9062 mono_mb_emit_byte (mb, CEE_ADD);
9063 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9064 mono_mb_emit_byte (mb, CEE_SUB);
9065 mono_mb_emit_stloc (mb, ind);
9066 /* if (ind >= bounds [0].length) goto exeception; */
9067 mono_mb_emit_ldloc (mb, ind);
9068 mono_mb_emit_ldloc (mb, bounds);
9069 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9070 mono_mb_emit_byte (mb, CEE_ADD);
9071 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9072 /* note that we use unsigned comparison */
9073 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9075 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9076 * We could also decide to ignore the passed elem_size and get it
9077 * from the array object, to reduce the number of methods we generate:
9078 * the additional cost is 3 memory loads and a non-immediate mul.
9080 for (i = 1; i < rank; ++i) {
9081 /* realidx = idxi - bounds [i].lower_bound */
9082 mono_mb_emit_ldarg (mb, 1 + i);
9083 mono_mb_emit_ldloc (mb, bounds);
9084 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9085 mono_mb_emit_byte (mb, CEE_ADD);
9086 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9087 mono_mb_emit_byte (mb, CEE_SUB);
9088 mono_mb_emit_stloc (mb, realidx);
9089 /* if (realidx >= bounds [i].length) goto exeception; */
9090 mono_mb_emit_ldloc (mb, realidx);
9091 mono_mb_emit_ldloc (mb, bounds);
9092 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9093 mono_mb_emit_byte (mb, CEE_ADD);
9094 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9095 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9096 /* ind = ind * bounds [i].length + realidx */
9097 mono_mb_emit_ldloc (mb, ind);
9098 mono_mb_emit_ldloc (mb, bounds);
9099 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9100 mono_mb_emit_byte (mb, CEE_ADD);
9101 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9102 mono_mb_emit_byte (mb, CEE_MUL);
9103 mono_mb_emit_ldloc (mb, realidx);
9104 mono_mb_emit_byte (mb, CEE_ADD);
9105 mono_mb_emit_stloc (mb, ind);
9108 /* return array->vector + ind * element_size */
9109 mono_mb_emit_ldarg (mb, 0);
9110 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9111 mono_mb_emit_ldloc (mb, ind);
9112 mono_mb_emit_icon (mb, elem_size);
9113 mono_mb_emit_byte (mb, CEE_MUL);
9114 mono_mb_emit_byte (mb, CEE_ADD);
9115 mono_mb_emit_byte (mb, CEE_RET);
9117 /* patch the branches to get here and throw */
9118 for (i = 1; i < rank; ++i) {
9119 mono_mb_patch_branch (mb, branch_positions [i]);
9121 mono_mb_patch_branch (mb, branch_pos);
9122 /* throw exception */
9123 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9125 g_free (branch_positions);
9126 ret = mono_mb_create_method (mb, sig, 4);
9129 /* cache the result */
9131 mono_marshal_lock ();
9132 for (i = 0; i < elem_addr_cache_next; ++i) {
9133 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9134 /* FIXME: free ret */
9135 ret = elem_addr_cache [i].method;
9141 if (elem_addr_cache_next >= elem_addr_cache_size) {
9142 int new_size = elem_addr_cache_size + 4;
9143 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9144 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9145 g_free (elem_addr_cache);
9146 elem_addr_cache = new_array;
9147 elem_addr_cache_size = new_size;
9149 elem_addr_cache [elem_addr_cache_next].rank = rank;
9150 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9151 elem_addr_cache [elem_addr_cache_next].method = ret;
9153 mono_marshal_unlock ();
9158 mono_marshal_alloc (gulong size)
9162 #ifdef PLATFORM_WIN32
9163 res = CoTaskMemAlloc (size);
9165 res = g_try_malloc ((gulong)size);
9167 mono_gc_out_of_memory ((gulong)size);
9173 mono_marshal_free (gpointer ptr)
9175 #ifdef PLATFORM_WIN32
9176 CoTaskMemFree (ptr);
9183 mono_marshal_free_array (gpointer *ptr, int size)
9190 for (i = 0; i < size; i++)
9196 mono_marshal_string_to_utf16 (MonoString *s)
9198 return s ? mono_string_chars (s) : NULL;
9202 mono_marshal_string_to_utf16_copy (MonoString *s)
9207 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9208 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9209 res [mono_string_length (s)] = 0;
9215 * mono_marshal_set_last_error:
9217 * This function is invoked to set the last error value from a P/Invoke call
9218 * which has SetLastError set.
9221 mono_marshal_set_last_error (void)
9224 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9226 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9231 mono_marshal_set_last_error_windows (int error)
9234 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9239 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9240 gpointer dest, gint32 length)
9245 MONO_ARCH_SAVE_REGS;
9247 MONO_CHECK_ARG_NULL (src);
9248 MONO_CHECK_ARG_NULL (dest);
9250 if (src->obj.vtable->klass->rank != 1)
9251 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9252 if (start_index < 0)
9253 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9255 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9256 if (start_index + length > mono_array_length (src))
9257 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9259 element_size = mono_array_element_size (src->obj.vtable->klass);
9261 /* no references should be involved */
9262 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9264 memcpy (dest, source_addr, length * element_size);
9268 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9269 MonoArray *dest, gint32 length)
9274 MONO_ARCH_SAVE_REGS;
9276 MONO_CHECK_ARG_NULL (src);
9277 MONO_CHECK_ARG_NULL (dest);
9279 if (dest->obj.vtable->klass->rank != 1)
9280 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9281 if (start_index < 0)
9282 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9284 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9285 if (start_index + length > mono_array_length (dest))
9286 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9288 element_size = mono_array_element_size (dest->obj.vtable->klass);
9290 /* no references should be involved */
9291 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9293 memcpy (dest_addr, src, length * element_size);
9296 #if NO_UNALIGNED_ACCESS
9297 #define RETURN_UNALIGNED(type, addr) \
9300 memcpy(&val, p + offset, sizeof(val)); \
9303 #define WRITE_UNALIGNED(type, addr, val) \
9304 memcpy(addr, &val, sizeof(type))
9306 #define RETURN_UNALIGNED(type, addr) \
9307 return *(type*)(p + offset);
9308 #define WRITE_UNALIGNED(type, addr, val) \
9309 (*(type *)(addr) = (val))
9313 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9317 MONO_ARCH_SAVE_REGS;
9319 RETURN_UNALIGNED(gpointer, p + offset);
9323 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9327 MONO_ARCH_SAVE_REGS;
9329 return *(unsigned char*)(p + offset);
9333 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9337 MONO_ARCH_SAVE_REGS;
9339 RETURN_UNALIGNED(gint16, p + offset);
9343 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9347 MONO_ARCH_SAVE_REGS;
9349 RETURN_UNALIGNED(gint32, p + offset);
9353 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9357 MONO_ARCH_SAVE_REGS;
9359 RETURN_UNALIGNED(gint64, p + offset);
9363 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9367 MONO_ARCH_SAVE_REGS;
9369 *(unsigned char*)(p + offset) = val;
9373 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9377 MONO_ARCH_SAVE_REGS;
9379 WRITE_UNALIGNED(gpointer, p + offset, val);
9383 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9387 MONO_ARCH_SAVE_REGS;
9389 WRITE_UNALIGNED(gint16, p + offset, val);
9393 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9397 MONO_ARCH_SAVE_REGS;
9399 WRITE_UNALIGNED(gint32, p + offset, val);
9403 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9407 MONO_ARCH_SAVE_REGS;
9409 WRITE_UNALIGNED(gint64, p + offset, val);
9413 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9415 MONO_ARCH_SAVE_REGS;
9420 return mono_string_new (mono_domain_get (), ptr);
9424 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9426 MONO_ARCH_SAVE_REGS;
9429 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9430 g_assert_not_reached ();
9433 return mono_string_new_len (mono_domain_get (), ptr, len);
9438 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9440 MonoDomain *domain = mono_domain_get ();
9444 MONO_ARCH_SAVE_REGS;
9452 return mono_string_new_utf16 (domain, ptr, len);
9456 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9458 MonoDomain *domain = mono_domain_get ();
9460 MONO_ARCH_SAVE_REGS;
9463 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9464 g_assert_not_reached ();
9467 return mono_string_new_utf16 (domain, ptr, len);
9472 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9474 MONO_ARCH_SAVE_REGS;
9476 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9480 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9486 MONO_ARCH_SAVE_REGS;
9488 MONO_CHECK_ARG_NULL (rtype);
9491 klass = mono_class_from_mono_type (type);
9492 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9494 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9498 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9499 exc = mono_get_exception_argument ("t", msg);
9501 mono_raise_exception (exc);
9505 return mono_class_native_size (klass, NULL);
9509 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9514 MONO_ARCH_SAVE_REGS;
9516 MONO_CHECK_ARG_NULL (obj);
9517 MONO_CHECK_ARG_NULL (dst);
9519 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9523 pa [2] = &delete_old;
9525 mono_runtime_invoke (method, NULL, pa, NULL);
9529 ptr_to_structure (gpointer src, MonoObject *dst)
9534 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9539 mono_runtime_invoke (method, NULL, pa, NULL);
9543 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9547 MONO_ARCH_SAVE_REGS;
9549 MONO_CHECK_ARG_NULL (src);
9550 MONO_CHECK_ARG_NULL (dst);
9552 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9554 if (t->type == MONO_TYPE_VALUETYPE) {
9558 tmp = g_strdup_printf ("Destination is a boxed value type.");
9559 exc = mono_get_exception_argument ("dst", tmp);
9562 mono_raise_exception (exc);
9566 ptr_to_structure (src, dst);
9570 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
9572 MonoDomain *domain = mono_domain_get ();
9575 MONO_ARCH_SAVE_REGS;
9577 MONO_CHECK_ARG_NULL (src);
9578 MONO_CHECK_ARG_NULL (type);
9580 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
9582 ptr_to_structure (src, res);
9588 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
9590 MonoMarshalType *info;
9593 int match_index = -1;
9595 MONO_ARCH_SAVE_REGS;
9597 MONO_CHECK_ARG_NULL (type);
9598 MONO_CHECK_ARG_NULL (field_name);
9600 fname = mono_string_to_utf8 (field_name);
9601 klass = mono_class_from_mono_type (type->type);
9603 while (klass && match_index == -1) {
9604 MonoClassField* field;
9606 gpointer iter = NULL;
9607 while ((field = mono_class_get_fields (klass, &iter))) {
9608 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9610 if (!strcmp (fname, mono_field_get_name (field))) {
9617 if (match_index == -1)
9618 klass = klass->parent;
9623 if(match_index == -1) {
9627 /* Get back original class instance */
9628 klass = mono_class_from_mono_type (type->type);
9630 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9631 exc = mono_get_exception_argument ("fieldName", tmp);
9634 mono_raise_exception ((MonoException*)exc);
9637 info = mono_marshal_load_type_info (klass);
9638 return info->fields [match_index].offset;
9642 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9644 #ifdef PLATFORM_WIN32
9647 tres = mono_string_to_utf8 (string);
9651 len = strlen (tres) + 1;
9652 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
9653 memcpy (ret, tres, len);
9658 return mono_string_to_utf8 (string);
9663 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9665 MONO_ARCH_SAVE_REGS;
9670 #ifdef PLATFORM_WIN32
9671 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
9672 ((mono_string_length (string) + 1) * 2);
9674 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9676 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9677 res [mono_string_length (string)] = 0;
9683 mono_struct_delete_old (MonoClass *klass, char *ptr)
9685 MonoMarshalType *info;
9688 info = mono_marshal_load_type_info (klass);
9690 for (i = 0; i < info->num_fields; i++) {
9691 MonoMarshalNative ntype;
9692 MonoMarshalConv conv;
9693 MonoType *ftype = info->fields [i].field->type;
9696 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9699 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9700 klass->unicode, &conv);
9702 cpos = ptr + info->fields [i].offset;
9705 case MONO_MARSHAL_CONV_NONE:
9706 if (MONO_TYPE_ISSTRUCT (ftype)) {
9707 mono_struct_delete_old (ftype->data.klass, cpos);
9711 case MONO_MARSHAL_CONV_STR_LPWSTR:
9712 /* We assume this field points inside a MonoString */
9714 case MONO_MARSHAL_CONV_STR_LPTSTR:
9715 #ifdef PLATFORM_WIN32
9716 /* We assume this field points inside a MonoString
9720 case MONO_MARSHAL_CONV_STR_LPSTR:
9721 case MONO_MARSHAL_CONV_STR_BSTR:
9722 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9723 case MONO_MARSHAL_CONV_STR_TBSTR:
9724 mono_marshal_free (*(gpointer *)cpos);
9734 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9738 MONO_ARCH_SAVE_REGS;
9740 MONO_CHECK_ARG_NULL (src);
9741 MONO_CHECK_ARG_NULL (type);
9743 klass = mono_class_from_mono_type (type->type);
9745 mono_struct_delete_old (klass, (char *)src);
9749 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9753 MONO_ARCH_SAVE_REGS;
9755 if ((gulong)size == 0)
9756 /* This returns a valid pointer for size 0 on MS.NET */
9759 #ifdef PLATFORM_WIN32
9760 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
9762 res = g_try_malloc ((gulong)size);
9765 mono_gc_out_of_memory ((gulong)size);
9771 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
9776 mono_gc_out_of_memory ((gulong)size);
9780 #ifdef PLATFORM_WIN32
9781 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
9783 res = g_try_realloc (ptr, (gulong)size);
9786 mono_gc_out_of_memory ((gulong)size);
9792 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9794 MONO_ARCH_SAVE_REGS;
9796 #ifdef PLATFORM_WIN32
9804 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9806 MONO_ARCH_SAVE_REGS;
9808 #ifdef PLATFORM_WIN32
9809 return CoTaskMemAlloc (size);
9811 return g_try_malloc ((gulong)size);
9816 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9818 MONO_ARCH_SAVE_REGS;
9820 #ifdef PLATFORM_WIN32
9821 CoTaskMemFree (ptr);
9828 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
9830 MONO_ARCH_SAVE_REGS;
9832 #ifdef PLATFORM_WIN32
9833 return CoTaskMemRealloc (ptr, size);
9835 return g_try_realloc (ptr, (gulong)size);
9840 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9842 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9846 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9848 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9852 * mono_marshal_is_loading_type_info:
9854 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
9858 mono_marshal_is_loading_type_info (MonoClass *klass)
9860 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
9862 return g_slist_find (loads_list, klass) != NULL;
9866 * mono_marshal_load_type_info:
9868 * Initialize klass->marshal_info using information from metadata. This function can
9869 * recursively call itself, and the caller is responsible to avoid that by calling
9870 * mono_marshal_is_loading_type_info () beforehand.
9872 * LOCKING: Acquires the loader lock.
9875 mono_marshal_load_type_info (MonoClass* klass)
9878 guint32 native_size = 0, min_align = 1;
9879 MonoMarshalType *info;
9880 MonoClassField* field;
9885 g_assert (klass != NULL);
9887 if (klass->marshal_info)
9888 return klass->marshal_info;
9891 mono_class_init (klass);
9893 mono_loader_lock ();
9895 if (klass->marshal_info) {
9896 mono_loader_unlock ();
9897 return klass->marshal_info;
9901 * This function can recursively call itself, so we keep the list of classes which are
9902 * under initialization in a TLS list.
9904 g_assert (!mono_marshal_is_loading_type_info (klass));
9905 loads_list = TlsGetValue (load_type_info_tls_id);
9906 loads_list = g_slist_prepend (loads_list, klass);
9907 TlsSetValue (load_type_info_tls_id, loads_list);
9910 while ((field = mono_class_get_fields (klass, &iter))) {
9911 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9913 if (mono_field_is_deleted (field))
9918 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
9920 /* The mempool is protected by the loader lock */
9921 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
9922 info->num_fields = count;
9924 /* Try to find a size for this type in metadata */
9925 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
9927 if (klass->parent) {
9928 int parent_size = mono_class_native_size (klass->parent, NULL);
9930 /* Add parent size to real size */
9931 native_size += parent_size;
9932 info->native_size = parent_size;
9937 while ((field = mono_class_get_fields (klass, &iter))) {
9941 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9944 if (mono_field_is_deleted (field))
9946 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
9947 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
9948 NULL, NULL, &info->fields [j].mspec);
9950 info->fields [j].field = field;
9952 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
9953 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
9954 /* This field is a hack inserted by MCS to empty structures */
9959 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
9960 case TYPE_ATTRIBUTE_SEQUENTIAL_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 = info->native_size;
9966 info->fields [j].offset += align - 1;
9967 info->fields [j].offset &= ~(align - 1);
9968 info->native_size = info->fields [j].offset + size;
9970 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
9971 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9972 &align, TRUE, klass->unicode);
9973 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9974 min_align = MAX (align, min_align);
9975 info->fields [j].offset = field->offset - sizeof (MonoObject);
9976 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
9982 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9983 info->native_size = MAX (native_size, info->native_size);
9986 if (info->native_size & (min_align - 1)) {
9987 info->native_size += min_align - 1;
9988 info->native_size &= ~(min_align - 1);
9991 info->min_align = min_align;
9993 /* Update the class's blittable info, if the layouts don't match */
9994 if (info->native_size != mono_class_value_size (klass, NULL))
9995 klass->blittable = FALSE;
9997 /* If this is an array type, ensure that we have element info */
9998 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
9999 mono_marshal_load_type_info (klass->element_class);
10002 loads_list = TlsGetValue (load_type_info_tls_id);
10003 loads_list = g_slist_remove (loads_list, klass);
10004 TlsSetValue (load_type_info_tls_id, loads_list);
10006 /*We do double-checking locking on marshal_info */
10007 mono_memory_barrier ();
10009 klass->marshal_info = info;
10011 mono_loader_unlock ();
10013 return klass->marshal_info;
10017 * mono_class_native_size:
10020 * Returns: the native size of an object instance (when marshaled
10021 * to unmanaged code)
10024 mono_class_native_size (MonoClass *klass, guint32 *align)
10026 if (!klass->marshal_info) {
10027 if (mono_marshal_is_loading_type_info (klass)) {
10032 mono_marshal_load_type_info (klass);
10037 *align = klass->marshal_info->min_align;
10039 return klass->marshal_info->native_size;
10042 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10043 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10044 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10045 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10048 * mono_type_native_stack_size:
10049 * @t: the type to return the size it uses on the stack
10051 * Returns: the number of bytes required to hold an instance of this
10052 * type on the native stack
10055 mono_type_native_stack_size (MonoType *t, guint32 *align)
10059 g_assert (t != NULL);
10065 *align = sizeof (gpointer);
10066 return sizeof (gpointer);
10070 case MONO_TYPE_BOOLEAN:
10071 case MONO_TYPE_CHAR:
10082 case MONO_TYPE_STRING:
10083 case MONO_TYPE_OBJECT:
10084 case MONO_TYPE_CLASS:
10085 case MONO_TYPE_SZARRAY:
10086 case MONO_TYPE_PTR:
10087 case MONO_TYPE_FNPTR:
10088 case MONO_TYPE_ARRAY:
10089 *align = sizeof (gpointer);
10090 return sizeof (gpointer);
10095 *align = ALIGNMENT (gdouble);
10099 *align = ALIGNMENT (glong);
10101 case MONO_TYPE_GENERICINST:
10102 if (!mono_type_generic_inst_is_valuetype (t)) {
10103 *align = sizeof (gpointer);
10104 return sizeof (gpointer);
10107 case MONO_TYPE_TYPEDBYREF:
10108 case MONO_TYPE_VALUETYPE: {
10110 MonoClass *klass = mono_class_from_mono_type (t);
10112 if (klass->enumtype)
10113 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10115 size = mono_class_native_size (klass, align);
10116 *align = *align + 3;
10126 g_error ("type 0x%02x unknown", t->type);
10132 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10133 gboolean as_field, gboolean unicode)
10135 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10138 switch (native_type) {
10139 case MONO_NATIVE_BOOLEAN:
10142 case MONO_NATIVE_I1:
10143 case MONO_NATIVE_U1:
10146 case MONO_NATIVE_I2:
10147 case MONO_NATIVE_U2:
10148 case MONO_NATIVE_VARIANTBOOL:
10151 case MONO_NATIVE_I4:
10152 case MONO_NATIVE_U4:
10153 case MONO_NATIVE_ERROR:
10156 case MONO_NATIVE_I8:
10157 case MONO_NATIVE_U8:
10158 *align = ALIGNMENT(guint64);
10160 case MONO_NATIVE_R4:
10163 case MONO_NATIVE_R8:
10164 *align = ALIGNMENT(double);
10166 case MONO_NATIVE_INT:
10167 case MONO_NATIVE_UINT:
10168 case MONO_NATIVE_LPSTR:
10169 case MONO_NATIVE_LPWSTR:
10170 case MONO_NATIVE_LPTSTR:
10171 case MONO_NATIVE_BSTR:
10172 case MONO_NATIVE_ANSIBSTR:
10173 case MONO_NATIVE_TBSTR:
10174 case MONO_NATIVE_LPARRAY:
10175 case MONO_NATIVE_SAFEARRAY:
10176 case MONO_NATIVE_IUNKNOWN:
10177 case MONO_NATIVE_IDISPATCH:
10178 case MONO_NATIVE_INTERFACE:
10179 case MONO_NATIVE_ASANY:
10180 case MONO_NATIVE_FUNC:
10181 case MONO_NATIVE_LPSTRUCT:
10182 *align = ALIGNMENT(gpointer);
10183 return sizeof (gpointer);
10184 case MONO_NATIVE_STRUCT:
10185 klass = mono_class_from_mono_type (type);
10186 if (klass == mono_defaults.object_class &&
10187 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10191 return mono_class_native_size (klass, align);
10192 case MONO_NATIVE_BYVALTSTR: {
10193 int esize = unicode ? 2: 1;
10196 return mspec->data.array_data.num_elem * esize;
10198 case MONO_NATIVE_BYVALARRAY: {
10199 // FIXME: Have to consider ArraySubType
10201 klass = mono_class_from_mono_type (type);
10202 if (klass->element_class == mono_defaults.char_class) {
10203 esize = unicode ? 2 : 1;
10206 esize = mono_class_native_size (klass->element_class, align);
10209 return mspec->data.array_data.num_elem * esize;
10211 case MONO_NATIVE_CUSTOM:
10212 *align = sizeof (gpointer);
10213 return sizeof (gpointer);
10215 case MONO_NATIVE_CURRENCY:
10216 case MONO_NATIVE_VBBYREFSTR:
10218 g_error ("native type %02x not implemented", native_type);
10221 g_assert_not_reached ();
10226 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10234 t = &o->vtable->klass->byval_arg;
10238 case MONO_TYPE_PTR:
10241 case MONO_TYPE_BOOLEAN:
10244 case MONO_TYPE_CHAR:
10249 return mono_object_unbox (o);
10251 case MONO_TYPE_STRING:
10252 switch (string_encoding) {
10253 case MONO_NATIVE_LPWSTR:
10254 return mono_string_to_utf16 ((MonoString*)o);
10256 case MONO_NATIVE_LPSTR:
10257 return mono_string_to_lpstr ((MonoString*)o);
10260 g_warning ("marshaling conversion %d not implemented", string_encoding);
10261 g_assert_not_reached ();
10264 case MONO_TYPE_CLASS:
10265 case MONO_TYPE_VALUETYPE: {
10266 MonoMethod *method;
10269 MonoBoolean delete_old = FALSE;
10271 klass = t->data.klass;
10273 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10276 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10277 klass->blittable || klass->enumtype))
10278 return mono_object_unbox (o);
10280 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10282 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10283 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10287 pa [2] = &delete_old;
10289 mono_runtime_invoke (method, NULL, pa, NULL);
10296 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10302 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10310 t = &o->vtable->klass->byval_arg;
10312 case MONO_TYPE_STRING:
10313 switch (string_encoding) {
10314 case MONO_NATIVE_LPWSTR:
10315 case MONO_NATIVE_LPSTR:
10316 mono_marshal_free (ptr);
10319 g_warning ("marshaling conversion %d not implemented", string_encoding);
10320 g_assert_not_reached ();
10323 case MONO_TYPE_CLASS:
10324 case MONO_TYPE_VALUETYPE: {
10325 klass = t->data.klass;
10327 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10328 klass->blittable || klass->enumtype))
10331 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10332 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10338 mono_runtime_invoke (method, NULL, pa, NULL);
10341 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10342 mono_struct_delete_old (klass, ptr);
10345 mono_marshal_free (ptr);
10354 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10356 MonoMethodSignature *sig, *csig;
10357 MonoMethodBuilder *mb;
10361 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10362 mb->method->slot = -1;
10364 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10365 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10367 sig = mono_method_signature (method);
10368 csig = signature_dup (method->klass->image, sig);
10369 csig->generic_param_count = 0;
10371 mono_mb_emit_ldarg (mb, 0);
10372 for (i = 0; i < csig->param_count; i++)
10373 mono_mb_emit_ldarg (mb, i + 1);
10374 mono_mb_emit_managed_call (mb, method, NULL);
10375 mono_mb_emit_byte (mb, CEE_RET);
10377 /* We can corlib internal methods */
10378 mb->skip_visibility = TRUE;
10380 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10388 * The mono_win32_compat_* functions are implementations of inline
10389 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10390 * although not exported by kernel32.
10392 * We map the appropiate kernel32 entries to these functions using
10393 * dllmaps declared in the global etc/mono/config.
10397 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10399 if (!dest || !source)
10402 memcpy (dest, source, length);
10406 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10408 memset (dest, fill, length);
10412 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10414 if (!dest || !source)
10417 memmove (dest, source, length);
10421 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10423 memset (dest, 0, length);
10427 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10432 for (i = 0; i < len; ++i)
10436 g_assert (i < len);
10439 while (byte && !(byte & 1))
10441 g_assert (byte == 1);
10444 *bitmask = buf [i];
10448 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10450 MonoMethodBuilder *mb;
10451 MonoMethodSignature *sig, *csig;
10452 MonoExceptionClause *clause;
10457 int i, param_count, sig_size, pos_leave;
10461 klass = method->klass;
10462 image = method->klass->image;
10463 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10465 if ((res = mono_marshal_find_in_cache (cache, method)))
10468 sig = mono_method_signature (method);
10469 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10471 /* add "this" and exception param */
10472 param_count = sig->param_count + sig->hasthis + 1;
10474 /* dup & extend signature */
10475 csig = mono_metadata_signature_alloc (image, param_count);
10476 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
10477 memcpy (csig, sig, sig_size);
10478 csig->param_count = param_count;
10481 csig->call_convention = MONO_CALL_DEFAULT;
10483 if (sig->hasthis) {
10485 csig->params [0] = &klass->byval_arg;
10486 /* move params up by one */
10487 for (i = 0; i < sig->param_count; i++)
10488 csig->params [i + 1] = sig->params [i];
10491 /* setup exception param as byref+[out] */
10492 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10493 &mono_defaults.exception_class->byval_arg);
10494 csig->params [param_count - 1]->byref = 1;
10495 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10497 /* convert struct return to object */
10498 if (MONO_TYPE_ISSTRUCT (sig->ret))
10499 csig->ret = &mono_defaults.object_class->byval_arg;
10501 /* local 0 (temp for exception object) */
10502 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10504 /* local 1 (temp for result) */
10505 if (!MONO_TYPE_IS_VOID (sig->ret))
10506 mono_mb_add_local (mb, sig->ret);
10508 /* clear exception arg */
10509 mono_mb_emit_ldarg (mb, param_count - 1);
10510 mono_mb_emit_byte (mb, CEE_LDNULL);
10511 mono_mb_emit_byte (mb, CEE_STIND_REF);
10514 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10515 clause->try_offset = mono_mb_get_label (mb);
10517 /* push method's args */
10518 for (i = 0; i < param_count - 1; i++) {
10522 mono_mb_emit_ldarg (mb, i);
10524 /* get the byval type of the param */
10525 klass = mono_class_from_mono_type (csig->params [i]);
10526 type = &klass->byval_arg;
10528 /* unbox struct args */
10529 if (MONO_TYPE_ISSTRUCT (type)) {
10530 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10532 /* byref args & and the "this" arg must remain a ptr.
10533 Otherwise make a copy of the value type */
10534 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10535 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10537 csig->params [i] = &mono_defaults.object_class->byval_arg;
10542 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10543 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10545 mono_mb_emit_op (mb, CEE_CALL, method);
10547 /* save result at local 1 */
10548 if (!MONO_TYPE_IS_VOID (sig->ret))
10549 mono_mb_emit_stloc (mb, 1);
10551 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
10554 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
10555 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10556 clause->data.catch_class = mono_defaults.object_class;
10558 clause->handler_offset = mono_mb_get_label (mb);
10560 /* store exception at local 0 */
10561 mono_mb_emit_stloc (mb, 0);
10562 mono_mb_emit_ldarg (mb, param_count - 1);
10563 mono_mb_emit_ldloc (mb, 0);
10564 mono_mb_emit_byte (mb, CEE_STIND_REF);
10565 mono_mb_emit_branch (mb, CEE_LEAVE);
10567 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
10569 mono_mb_set_clauses (mb, 1, clause);
10571 mono_mb_patch_branch (mb, pos_leave);
10574 if (!MONO_TYPE_IS_VOID (sig->ret)) {
10575 mono_mb_emit_ldloc (mb, 1);
10577 /* box the return value */
10578 if (MONO_TYPE_ISSTRUCT (sig->ret))
10579 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
10582 mono_mb_emit_byte (mb, CEE_RET);
10584 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
10591 * mono_marshal_free_dynamic_wrappers:
10593 * Free wrappers of the dynamic method METHOD.
10596 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
10598 g_assert (method->dynamic);
10600 mono_marshal_lock ();
10602 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10603 * they could be shared with other methods ?
10605 if (method->klass->image->runtime_invoke_direct_cache)
10606 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10607 mono_marshal_unlock ();
10611 * mono_marshal_free_inflated_wrappers:
10613 * Free wrappers of the inflated method METHOD.
10617 signature_method_pair_matches_signature (gpointer key, gpointer value, gpointer user_data)
10619 SignatureMethodPair *pair = (SignatureMethodPair*)key;
10620 MonoMethodSignature *sig = (MonoMethodSignature*)user_data;
10622 return mono_metadata_signature_equal (pair->sig, sig);
10626 mono_marshal_free_inflated_wrappers (MonoMethod *method)
10628 MonoMethodSignature *sig = method->signature;
10630 g_assert (method->is_inflated);
10632 /* Ignore calls occuring late during cleanup. */
10633 if (!marshal_mutex_initialized)
10636 mono_marshal_lock ();
10638 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10639 * they could be shared with other methods ?
10643 * indexed by MonoMethodSignature
10645 /* FIXME: This could remove unrelated wrappers as well */
10646 if (sig && method->klass->image->delegate_begin_invoke_cache)
10647 g_hash_table_remove (method->klass->image->delegate_begin_invoke_cache, sig);
10648 if (sig && method->klass->image->delegate_end_invoke_cache)
10649 g_hash_table_remove (method->klass->image->delegate_end_invoke_cache, sig);
10650 if (sig && method->klass->image->delegate_invoke_cache)
10651 g_hash_table_remove (method->klass->image->delegate_invoke_cache, sig);
10652 if (sig && method->klass->image->runtime_invoke_cache)
10653 g_hash_table_remove (method->klass->image->runtime_invoke_cache, sig);
10656 * indexed by SignatureMethodPair
10658 if (sig && method->klass->image->delegate_abstract_invoke_cache)
10659 g_hash_table_foreach_remove (method->klass->image->delegate_abstract_invoke_cache,
10660 signature_method_pair_matches_signature, (gpointer)sig);
10663 * indexed by MonoMethod pointers
10665 if (method->klass->image->runtime_invoke_direct_cache)
10666 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10667 if (method->klass->image->managed_wrapper_cache)
10668 g_hash_table_remove (method->klass->image->managed_wrapper_cache, method);
10669 if (method->klass->image->native_wrapper_cache)
10670 g_hash_table_remove (method->klass->image->native_wrapper_cache, method);
10671 if (method->klass->image->remoting_invoke_cache)
10672 g_hash_table_remove (method->klass->image->remoting_invoke_cache, method);
10673 if (method->klass->image->synchronized_cache)
10674 g_hash_table_remove (method->klass->image->synchronized_cache, method);
10675 if (method->klass->image->unbox_wrapper_cache)
10676 g_hash_table_remove (method->klass->image->unbox_wrapper_cache, method);
10677 if (method->klass->image->cominterop_invoke_cache)
10678 g_hash_table_remove (method->klass->image->cominterop_invoke_cache, method);
10679 if (method->klass->image->cominterop_wrapper_cache)
10680 g_hash_table_remove (method->klass->image->cominterop_wrapper_cache, method);
10681 if (method->klass->image->thunk_invoke_cache)
10682 g_hash_table_remove (method->klass->image->thunk_invoke_cache, method);
10684 mono_marshal_unlock ();