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;
78 static guint32 last_error_tls_id;
80 static guint32 load_type_info_tls_id;
83 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc);
86 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
89 mono_struct_delete_old (MonoClass *klass, char *ptr);
92 mono_marshal_string_to_utf16 (MonoString *s);
95 mono_marshal_string_to_utf16_copy (MonoString *s);
98 mono_string_to_lpstr (MonoString *string_obj);
100 static MonoStringBuilder *
101 mono_string_utf8_to_builder2 (char *text);
104 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
107 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
110 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
112 static MonoAsyncResult *
113 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
116 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
119 mono_marshal_xdomain_copy_value (MonoObject *val);
122 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
125 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
128 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
131 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
133 static MonoReflectionType *
134 type_from_handle (MonoType *handle);
137 mono_marshal_set_last_error_windows (int error);
139 static void init_safe_handle (void);
141 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
142 static MonoMethod *sh_dangerous_add_ref;
143 static MonoMethod *sh_dangerous_release;
149 sh_dangerous_add_ref = mono_class_get_method_from_name (
150 mono_defaults.safehandle_class, "DangerousAddRef", 1);
151 sh_dangerous_release = mono_class_get_method_from_name (
152 mono_defaults.safehandle_class, "DangerousRelease", 0);
156 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
158 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
160 mono_register_jit_icall (func, name, sig, save);
163 static MonoMethodSignature*
164 signature_dup (MonoImage *image, MonoMethodSignature *sig)
166 MonoMethodSignature *res;
169 res = mono_metadata_signature_alloc (image, sig->param_count);
170 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
171 memcpy (res, sig, sigsize);
177 mono_signature_no_pinvoke (MonoMethod *method)
179 MonoMethodSignature *sig = mono_method_signature (method);
181 sig = signature_dup (method->klass->image, sig);
182 sig->pinvoke = FALSE;
189 mono_marshal_init (void)
191 static gboolean module_initialized = FALSE;
193 if (!module_initialized) {
194 module_initialized = TRUE;
195 InitializeCriticalSection (&marshal_mutex);
196 last_error_tls_id = TlsAlloc ();
197 load_type_info_tls_id = TlsAlloc ();
199 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
200 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
201 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
202 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
203 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
204 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
205 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
206 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
207 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
208 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
209 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
210 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
211 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
212 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
213 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
214 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
215 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
216 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
217 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
218 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
219 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
220 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
221 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
222 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
223 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
224 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
225 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
226 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
227 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
228 register_icall (g_free, "g_free", "void ptr", FALSE);
229 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
230 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
231 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
232 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
233 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
234 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
235 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
236 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
237 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
238 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
239 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
240 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
241 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
242 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
243 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
245 mono_cominterop_init ();
250 mono_marshal_cleanup (void)
252 mono_cominterop_cleanup ();
254 TlsFree (load_type_info_tls_id);
255 TlsFree (last_error_tls_id);
256 DeleteCriticalSection (&marshal_mutex);
259 MonoClass *byte_array_class;
260 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
261 static MonoMethod *method_set_context, *method_get_context;
262 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
265 mono_remoting_marshal_init (void)
269 static gboolean module_initialized = FALSE;
271 if (!module_initialized) {
272 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
273 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
274 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
275 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
277 klass = mono_defaults.real_proxy_class;
278 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
280 klass = mono_defaults.exception_class;
281 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
283 klass = mono_defaults.thread_class;
284 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
286 klass = mono_defaults.appdomain_class;
287 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
288 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
290 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
291 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
293 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
294 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
296 module_initialized = TRUE;
301 mono_delegate_to_ftnptr (MonoDelegate *delegate)
303 MonoMethod *method, *wrapper;
305 MonoObject **target_loc;
310 if (delegate->delegate_trampoline)
311 return delegate->delegate_trampoline;
313 klass = ((MonoObject *)delegate)->vtable->klass;
314 g_assert (klass->delegate);
316 method = delegate->method;
318 if (mono_method_signature (method)->pinvoke) {
319 const char *exc_class, *exc_arg;
322 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
324 g_assert (exc_class);
325 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
330 if (delegate->target) {
331 /* Produce a location which can be embedded in JITted code */
332 target_loc = mono_gc_alloc_fixed (sizeof (MonoObject*), NULL);
333 *target_loc = delegate->target;
338 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_loc);
340 delegate->delegate_trampoline = mono_compile_method (wrapper);
342 // Add the delegate to the delegate hash table
343 delegate_hash_table_add (delegate, target_loc);
345 /* when the object is collected, collect the dynamic method, too */
346 mono_object_register_finalizer ((MonoObject*)delegate);
348 return delegate->delegate_trampoline;
352 * this hash table maps from a delegate trampoline object to a weak reference
353 * of the delegate. As an optimizations with a non-moving GC we store the
354 * object pointer itself, otherwise we use a GC handle.
356 static GHashTable *delegate_hash_table;
357 /* Contains root locations pointing to the this arguments of delegates */
358 static MonoGHashTable *delegate_target_locations;
361 delegate_hash_table_new (void) {
362 return g_hash_table_new (NULL, NULL);
366 delegate_hash_table_remove (MonoDelegate *d)
368 MonoObject **target_loc;
369 #ifdef HAVE_MOVING_COLLECTOR
372 mono_marshal_lock ();
373 if (delegate_hash_table == NULL)
374 delegate_hash_table = delegate_hash_table_new ();
375 #ifdef HAVE_MOVING_COLLECTOR
376 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
378 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
379 if (delegate_target_locations)
380 target_loc = mono_g_hash_table_lookup (delegate_target_locations, d->delegate_trampoline);
384 mono_g_hash_table_remove (delegate_target_locations, d->delegate_trampoline);
385 mono_marshal_unlock ();
387 mono_gc_free_fixed (target_loc);
389 #ifdef HAVE_MOVING_COLLECTOR
390 mono_gchandle_free (gchandle);
395 delegate_hash_table_add (MonoDelegate *d, MonoObject **target_loc)
397 #ifdef HAVE_MOVING_COLLECTOR
398 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
399 guint32 old_gchandle;
401 mono_marshal_lock ();
402 if (delegate_hash_table == NULL)
403 delegate_hash_table = delegate_hash_table_new ();
404 if (delegate_target_locations == NULL) {
405 /* Has to be conservative as the values are not object references */
406 delegate_target_locations = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_CONSERVATIVE_GC);
407 MONO_GC_REGISTER_ROOT (delegate_target_locations);
409 #ifdef HAVE_MOVING_COLLECTOR
410 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
411 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
413 mono_gchandle_free (old_gchandle);
415 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
418 /* This keeps target_loc alive for Boehm */
419 mono_g_hash_table_insert (delegate_target_locations, d->delegate_trampoline, target_loc);
420 mono_marshal_unlock ();
424 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
426 #ifdef HAVE_MOVING_COLLECTOR
434 mono_marshal_lock ();
435 if (delegate_hash_table == NULL)
436 delegate_hash_table = delegate_hash_table_new ();
438 #ifdef HAVE_MOVING_COLLECTOR
439 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
440 mono_marshal_unlock ();
442 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
446 d = g_hash_table_lookup (delegate_hash_table, ftn);
447 mono_marshal_unlock ();
450 /* This is a native function, so construct a delegate for it */
451 static MonoClass *UnmanagedFunctionPointerAttribute;
452 MonoMethodSignature *sig;
454 MonoMarshalSpec **mspecs;
455 MonoCustomAttrInfo *cinfo;
456 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
457 MonoMethod *invoke = mono_get_delegate_invoke (klass);
458 MonoMethodPInvoke piinfo;
461 memset (&piinfo, 0, sizeof (piinfo));
462 if (!UnmanagedFunctionPointerAttribute)
463 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
465 /* The attribute is only available in Net 2.0 */
466 if (UnmanagedFunctionPointerAttribute) {
468 * The pinvoke attributes are stored in a real custom attribute so we have to
471 cinfo = mono_custom_attrs_from_class (klass);
473 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
475 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
478 mono_custom_attrs_free (cinfo);
482 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
483 mono_method_get_marshal_info (invoke, mspecs);
484 /* Freed below so don't alloc from mempool */
485 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
488 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
490 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
492 mono_metadata_free_marshal_spec (mspecs [i]);
496 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
497 mono_delegate_ctor_with_method ((MonoObject*)d, NULL, mono_compile_method (wrapper), wrapper);
500 if (d->object.vtable->domain != mono_domain_get ())
501 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
507 mono_delegate_free_ftnptr (MonoDelegate *delegate)
512 delegate_hash_table_remove (delegate);
514 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
516 if (!delegate->target) {
517 /* The wrapper method is shared between delegates -> no need to free it */
522 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
525 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
530 mono_array_to_savearray (MonoArray *array)
535 g_assert_not_reached ();
540 mono_array_to_lparray (MonoArray *array)
545 /* fixme: maybe we need to make a copy */
546 return array->vector;
550 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
552 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
554 if (elclass == mono_defaults.byte_class) {
555 GError *error = NULL;
559 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
562 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
566 g_error_free (error);
569 g_assert_not_reached ();
573 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
575 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
577 if (elclass == mono_defaults.byte_class) {
579 GError *error = NULL;
581 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
583 MonoException *exc = mono_get_exception_argument ("string", error->message);
584 g_error_free (error);
585 mono_raise_exception (exc);
588 memcpy (native_arr, as, MIN (strlen (as), elnum));
591 g_assert_not_reached ();
596 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
598 GError *error = NULL;
608 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
610 if (items_written > mono_stringbuilder_capacity (sb))
611 items_written = mono_stringbuilder_capacity (sb);
614 if (! sb->str || sb->str == sb->cached_str) {
615 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
616 sb->cached_str = NULL;
619 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
620 sb->length = items_written;
622 g_error_free (error);
628 mono_string_utf8_to_builder2 (char *text)
631 MonoStringBuilder *sb;
632 static MonoClass *string_builder_class;
633 static MonoMethod *sb_ctor;
640 if (!string_builder_class) {
641 MonoMethodDesc *desc;
643 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
644 g_assert (string_builder_class);
645 desc = mono_method_desc_new (":.ctor(int)", FALSE);
646 sb_ctor = mono_method_desc_search_in_class (desc, string_builder_class);
648 mono_method_desc_free (desc);
653 sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
656 mono_runtime_invoke (sb_ctor, sb, args, &exc);
659 mono_string_utf8_to_builder (sb, text);
665 * FIXME: This routine does not seem to do what it seems to do
666 * the @text is never copied into the string builder
669 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
676 g_assert (mono_string_chars (sb->str) == text);
678 for (len = 0; text [len] != 0; ++len)
685 * mono_string_builder_to_utf8:
686 * @sb: the string builder
688 * Converts to utf8 the contents of the MonoStringBuilder.
690 * Returns: a utf8 string with the contents of the StringBuilder.
692 * The return value must be released with g_free.
695 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
697 GError *error = NULL;
698 gchar *tmp, *res = NULL;
703 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
705 * The sb could have been allocated with the default capacity and be empty.
706 * we need to alloc a buffer of the default capacity in this case.
708 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
709 sb->cached_str = NULL;
712 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, NULL, &error);
714 g_error_free (error);
715 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
717 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
718 memcpy (res, tmp, sb->length + 1);
726 * mono_string_builder_to_utf16:
727 * @sb: the string builder
729 * Converts to utf16 the contents of the MonoStringBuilder.
731 * Returns: a utf16 string with the contents of the StringBuilder.
733 * The return value must not be freed.
736 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
744 * The stringbuilder might not have ownership of this string. If this is
745 * the case, we must duplicate the string, so that we don't munge immutable
748 if (sb->str == sb->cached_str) {
750 * The sb could have been allocated with the default capacity and be empty.
751 * we need to alloc a buffer of the default capacity in this case.
753 if (sb->str->length == 0)
754 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
756 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
757 sb->cached_str = NULL;
760 return mono_string_chars (sb->str);
764 mono_string_to_lpstr (MonoString *s)
766 #ifdef PLATFORM_WIN32
769 GError *error = NULL;
775 as = CoTaskMemAlloc (1);
780 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
782 MonoException *exc = mono_get_exception_argument ("string", error->message);
783 g_error_free (error);
784 mono_raise_exception(exc);
787 as = CoTaskMemAlloc (len + 1);
788 memcpy (as, tmp, len + 1);
793 return mono_string_to_utf8 (s);
798 mono_string_to_ansibstr (MonoString *string_obj)
800 g_error ("UnmanagedMarshal.BStr is not implemented.");
805 * mono_string_to_byvalstr:
806 * @dst: Where to store the null-terminated utf8 decoded string.
807 * @src: the MonoString to copy.
808 * @size: the maximum number of bytes to copy.
810 * Copies the MonoString pointed to by @src as a utf8 string
811 * into @dst, it copies at most @size bytes into the destination.
814 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
819 g_assert (dst != NULL);
822 memset (dst, 0, size);
826 s = mono_string_to_utf8 (src);
827 len = MIN (size, strlen (s));
830 memcpy (dst, s, len);
835 * mono_string_to_byvalwstr:
836 * @dst: Where to store the null-terminated utf16 decoded string.
837 * @src: the MonoString to copy.
838 * @size: the maximum number of bytes to copy.
840 * Copies the MonoString pointed to by @src as a utf16 string into
841 * @dst, it copies at most @size bytes into the destination (including
842 * a terminating 16-bit zero terminator).
845 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
849 g_assert (dst != NULL);
853 memset (dst, 0, size * 2);
857 len = MIN (size, (mono_string_length (src)));
858 memcpy (dst, mono_string_chars (src), size * 2);
859 if (size <= mono_string_length (src))
861 *((gunichar2 *) dst + len) = 0;
865 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
868 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
869 mono_mb_emit_byte (mb, CEE_LDIND_I);
870 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
871 mono_mb_emit_byte (mb, CEE_ADD);
872 mono_mb_emit_byte (mb, CEE_LDIND_I);
873 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
874 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
875 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
876 pos = mono_mb_emit_branch (mb, branch_code);
881 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
884 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
885 mono_mb_emit_byte (mb, CEE_LDIND_REF);
886 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
887 mono_mb_emit_byte (mb, CEE_LDIND_I4);
888 mono_mb_emit_icon (mb, -1);
889 pos = mono_mb_emit_branch (mb, branch_code);
894 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
896 static int offset = -1;
900 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
902 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
903 mono_mb_emit_byte (mb, CEE_LDIND_REF);
904 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
905 mono_mb_emit_byte (mb, CEE_LDIND_REF);
906 mono_mb_emit_ldflda (mb, offset);
907 mono_mb_emit_byte (mb, CEE_LDIND_U1);
908 mono_mb_emit_icon (mb, mask);
909 mono_mb_emit_byte (mb, CEE_AND);
910 mono_mb_emit_icon (mb, 0);
911 return mono_mb_emit_branch (mb, branch_code);
915 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
917 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
921 mono_type_to_ldind (MonoType *type)
927 switch (type->type) {
931 case MONO_TYPE_BOOLEAN:
945 case MONO_TYPE_FNPTR:
947 case MONO_TYPE_CLASS:
948 case MONO_TYPE_STRING:
949 case MONO_TYPE_OBJECT:
950 case MONO_TYPE_SZARRAY:
951 case MONO_TYPE_ARRAY:
952 return CEE_LDIND_REF;
960 case MONO_TYPE_VALUETYPE:
961 if (type->data.klass->enumtype) {
962 type = mono_class_enum_basetype (type->data.klass);
966 case MONO_TYPE_TYPEDBYREF:
968 case MONO_TYPE_GENERICINST:
969 type = &type->data.generic_class->container_class->byval_arg;
972 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
978 mono_type_to_stind (MonoType *type)
984 switch (type->type) {
987 case MONO_TYPE_BOOLEAN:
999 case MONO_TYPE_FNPTR:
1001 case MONO_TYPE_CLASS:
1002 case MONO_TYPE_STRING:
1003 case MONO_TYPE_OBJECT:
1004 case MONO_TYPE_SZARRAY:
1005 case MONO_TYPE_ARRAY:
1006 return CEE_STIND_REF;
1009 return CEE_STIND_I8;
1011 return CEE_STIND_R4;
1013 return CEE_STIND_R8;
1014 case MONO_TYPE_VALUETYPE:
1015 if (type->data.klass->enumtype) {
1016 type = mono_class_enum_basetype (type->data.klass);
1020 case MONO_TYPE_TYPEDBYREF:
1022 case MONO_TYPE_GENERICINST:
1023 type = &type->data.generic_class->container_class->byval_arg;
1026 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1032 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1035 case MONO_MARSHAL_CONV_BOOL_I4:
1036 mono_mb_emit_ldloc (mb, 1);
1037 mono_mb_emit_ldloc (mb, 0);
1038 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1039 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1040 mono_mb_emit_byte (mb, 3);
1041 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1042 mono_mb_emit_byte (mb, CEE_BR_S);
1043 mono_mb_emit_byte (mb, 1);
1044 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1045 mono_mb_emit_byte (mb, CEE_STIND_I1);
1047 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1048 mono_mb_emit_ldloc (mb, 1);
1049 mono_mb_emit_ldloc (mb, 0);
1050 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1051 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1052 mono_mb_emit_byte (mb, 3);
1053 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1054 mono_mb_emit_byte (mb, CEE_BR_S);
1055 mono_mb_emit_byte (mb, 1);
1056 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1057 mono_mb_emit_byte (mb, CEE_STIND_I1);
1059 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1060 MonoClass *eklass = NULL;
1063 if (type->type == MONO_TYPE_SZARRAY) {
1064 eklass = type->data.klass;
1066 g_assert_not_reached ();
1069 esize = mono_class_native_size (eklass, NULL);
1071 /* create a new array */
1072 mono_mb_emit_ldloc (mb, 1);
1073 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1074 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1075 mono_mb_emit_byte (mb, CEE_STIND_I);
1077 if (eklass->blittable) {
1078 /* copy the elements */
1079 mono_mb_emit_ldloc (mb, 1);
1080 mono_mb_emit_byte (mb, CEE_LDIND_I);
1081 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1082 mono_mb_emit_byte (mb, CEE_ADD);
1083 mono_mb_emit_ldloc (mb, 0);
1084 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1085 mono_mb_emit_byte (mb, CEE_PREFIX1);
1086 mono_mb_emit_byte (mb, CEE_CPBLK);
1089 int array_var, src_var, dst_var, index_var;
1090 guint32 label2, label3;
1092 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1093 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1094 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1097 mono_mb_emit_ldloc (mb, 1);
1098 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1099 mono_mb_emit_stloc (mb, array_var);
1101 /* save the old src pointer */
1102 mono_mb_emit_ldloc (mb, 0);
1103 mono_mb_emit_stloc (mb, src_var);
1104 /* save the old dst pointer */
1105 mono_mb_emit_ldloc (mb, 1);
1106 mono_mb_emit_stloc (mb, dst_var);
1108 /* Emit marshalling loop */
1109 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1110 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1111 mono_mb_emit_stloc (mb, index_var);
1114 label2 = mono_mb_get_label (mb);
1115 mono_mb_emit_ldloc (mb, index_var);
1116 mono_mb_emit_ldloc (mb, array_var);
1117 mono_mb_emit_byte (mb, CEE_LDLEN);
1118 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1120 /* src is already set */
1123 mono_mb_emit_ldloc (mb, array_var);
1124 mono_mb_emit_ldloc (mb, index_var);
1125 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1126 mono_mb_emit_stloc (mb, 1);
1128 /* Do the conversion */
1129 emit_struct_conv (mb, eklass, TRUE);
1132 mono_mb_emit_add_to_local (mb, index_var, 1);
1134 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1136 mono_mb_patch_branch (mb, label3);
1138 /* restore the old src pointer */
1139 mono_mb_emit_ldloc (mb, src_var);
1140 mono_mb_emit_stloc (mb, 0);
1141 /* restore the old dst pointer */
1142 mono_mb_emit_ldloc (mb, dst_var);
1143 mono_mb_emit_stloc (mb, 1);
1147 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1148 MonoClass *eclass = mono_defaults.char_class;
1150 /* create a new array */
1151 mono_mb_emit_ldloc (mb, 1);
1152 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1153 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1154 mono_mb_emit_byte (mb, CEE_STIND_REF);
1156 mono_mb_emit_ldloc (mb, 1);
1157 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1158 mono_mb_emit_ldloc (mb, 0);
1159 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1160 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1161 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1164 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1165 mono_mb_emit_ldloc (mb, 1);
1166 mono_mb_emit_ldloc (mb, 0);
1167 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1168 mono_mb_emit_byte (mb, CEE_STIND_REF);
1170 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1171 mono_mb_emit_ldloc (mb, 1);
1172 mono_mb_emit_ldloc (mb, 0);
1173 mono_mb_emit_icall (mb, mono_string_from_utf16);
1174 mono_mb_emit_byte (mb, CEE_STIND_REF);
1176 case MONO_MARSHAL_CONV_STR_LPTSTR:
1177 mono_mb_emit_ldloc (mb, 1);
1178 mono_mb_emit_ldloc (mb, 0);
1179 mono_mb_emit_byte (mb, CEE_LDIND_I);
1180 #ifdef PLATFORM_WIN32
1181 mono_mb_emit_icall (mb, mono_string_from_utf16);
1183 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1185 mono_mb_emit_byte (mb, CEE_STIND_REF);
1187 case MONO_MARSHAL_CONV_STR_LPSTR:
1188 mono_mb_emit_ldloc (mb, 1);
1189 mono_mb_emit_ldloc (mb, 0);
1190 mono_mb_emit_byte (mb, CEE_LDIND_I);
1191 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1192 mono_mb_emit_byte (mb, CEE_STIND_REF);
1194 case MONO_MARSHAL_CONV_STR_LPWSTR:
1195 mono_mb_emit_ldloc (mb, 1);
1196 mono_mb_emit_ldloc (mb, 0);
1197 mono_mb_emit_byte (mb, CEE_LDIND_I);
1198 mono_mb_emit_icall (mb, mono_string_from_utf16);
1199 mono_mb_emit_byte (mb, CEE_STIND_REF);
1201 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1202 MonoClass *klass = mono_class_from_mono_type (type);
1203 int src_var, dst_var;
1205 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1206 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1208 /* *dst = new object */
1209 mono_mb_emit_ldloc (mb, 1);
1210 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1211 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1212 mono_mb_emit_byte (mb, CEE_STIND_REF);
1214 /* save the old src pointer */
1215 mono_mb_emit_ldloc (mb, 0);
1216 mono_mb_emit_stloc (mb, src_var);
1217 /* save the old dst pointer */
1218 mono_mb_emit_ldloc (mb, 1);
1219 mono_mb_emit_stloc (mb, dst_var);
1221 /* dst = pointer to newly created object data */
1222 mono_mb_emit_ldloc (mb, 1);
1223 mono_mb_emit_byte (mb, CEE_LDIND_I);
1224 mono_mb_emit_icon (mb, sizeof (MonoObject));
1225 mono_mb_emit_byte (mb, CEE_ADD);
1226 mono_mb_emit_stloc (mb, 1);
1228 emit_struct_conv (mb, klass, TRUE);
1230 /* restore the old src pointer */
1231 mono_mb_emit_ldloc (mb, src_var);
1232 mono_mb_emit_stloc (mb, 0);
1233 /* restore the old dst pointer */
1234 mono_mb_emit_ldloc (mb, dst_var);
1235 mono_mb_emit_stloc (mb, 1);
1238 case MONO_MARSHAL_CONV_DEL_FTN: {
1239 MonoClass *klass = mono_class_from_mono_type (type);
1241 mono_mb_emit_ldloc (mb, 1);
1242 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1243 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1244 mono_mb_emit_ldloc (mb, 0);
1245 mono_mb_emit_byte (mb, CEE_LDIND_I);
1246 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1247 mono_mb_emit_byte (mb, CEE_STIND_REF);
1250 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1251 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1255 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1256 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1257 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1258 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1260 #endif /* DISABLE_COM */
1262 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1264 * Passing SafeHandles as ref does not allow the unmanaged code
1265 * to change the SafeHandle value. If the value is changed,
1266 * we should issue a diagnostic exception (NotSupportedException)
1267 * that informs the user that changes to handles in unmanaged code
1270 * Since we currently have no access to the original
1271 * SafeHandle that was used during the marshalling,
1272 * for now we just ignore this, and ignore/discard any
1273 * changes that might have happened to the handle.
1278 case MONO_MARSHAL_CONV_HANDLEREF: {
1280 * Passing HandleRefs in a struct that is ref()ed does not
1281 * copy the values back to the HandleRef
1286 case MONO_MARSHAL_CONV_STR_BSTR:
1287 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1288 case MONO_MARSHAL_CONV_STR_TBSTR:
1289 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1291 g_warning ("marshaling conversion %d not implemented", conv);
1292 g_assert_not_reached ();
1297 conv_to_icall (MonoMarshalConv conv)
1300 case MONO_MARSHAL_CONV_STR_LPWSTR:
1301 return mono_marshal_string_to_utf16;
1302 case MONO_MARSHAL_CONV_LPWSTR_STR:
1303 return mono_string_from_utf16;
1304 case MONO_MARSHAL_CONV_LPSTR_STR:
1305 return mono_string_new_wrapper;
1306 case MONO_MARSHAL_CONV_STR_LPTSTR:
1307 #ifdef PLATFORM_WIN32
1308 return mono_marshal_string_to_utf16;
1310 return mono_string_to_lpstr;
1312 case MONO_MARSHAL_CONV_STR_LPSTR:
1313 return mono_string_to_lpstr;
1314 case MONO_MARSHAL_CONV_STR_BSTR:
1315 return mono_string_to_bstr;
1316 case MONO_MARSHAL_CONV_BSTR_STR:
1317 return mono_string_from_bstr;
1318 case MONO_MARSHAL_CONV_STR_TBSTR:
1319 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1320 return mono_string_to_ansibstr;
1321 case MONO_MARSHAL_CONV_SB_LPSTR:
1322 return mono_string_builder_to_utf8;
1323 case MONO_MARSHAL_CONV_SB_LPTSTR:
1324 #ifdef PLATFORM_WIN32
1325 return mono_string_builder_to_utf16;
1327 return mono_string_builder_to_utf8;
1329 case MONO_MARSHAL_CONV_SB_LPWSTR:
1330 return mono_string_builder_to_utf16;
1331 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1332 return mono_array_to_savearray;
1333 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1334 return mono_array_to_lparray;
1335 case MONO_MARSHAL_CONV_DEL_FTN:
1336 return mono_delegate_to_ftnptr;
1337 case MONO_MARSHAL_CONV_FTN_DEL:
1338 return mono_ftnptr_to_delegate;
1339 case MONO_MARSHAL_CONV_LPSTR_SB:
1340 return mono_string_utf8_to_builder;
1341 case MONO_MARSHAL_CONV_LPTSTR_SB:
1342 #ifdef PLATFORM_WIN32
1343 return mono_string_utf16_to_builder;
1345 return mono_string_utf8_to_builder;
1347 case MONO_MARSHAL_CONV_LPWSTR_SB:
1348 return mono_string_utf16_to_builder;
1349 case MONO_MARSHAL_FREE_ARRAY:
1350 return mono_marshal_free_array;
1351 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1352 return mono_string_to_byvalstr;
1353 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1354 return mono_string_to_byvalwstr;
1356 g_assert_not_reached ();
1363 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1368 case MONO_MARSHAL_CONV_BOOL_I4:
1369 mono_mb_emit_ldloc (mb, 1);
1370 mono_mb_emit_ldloc (mb, 0);
1371 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1372 mono_mb_emit_byte (mb, CEE_STIND_I4);
1374 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1375 mono_mb_emit_ldloc (mb, 1);
1376 mono_mb_emit_ldloc (mb, 0);
1377 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1378 mono_mb_emit_byte (mb, CEE_NEG);
1379 mono_mb_emit_byte (mb, CEE_STIND_I2);
1381 case MONO_MARSHAL_CONV_STR_LPWSTR:
1382 case MONO_MARSHAL_CONV_STR_LPSTR:
1383 case MONO_MARSHAL_CONV_STR_LPTSTR:
1384 case MONO_MARSHAL_CONV_STR_BSTR:
1385 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1386 case MONO_MARSHAL_CONV_STR_TBSTR: {
1389 /* free space if free == true */
1390 mono_mb_emit_ldloc (mb, 2);
1391 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1392 mono_mb_emit_ldloc (mb, 1);
1393 mono_mb_emit_byte (mb, CEE_LDIND_I);
1394 mono_mb_emit_icall (mb, g_free);
1395 mono_mb_patch_short_branch (mb, pos);
1397 mono_mb_emit_ldloc (mb, 1);
1398 mono_mb_emit_ldloc (mb, 0);
1399 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1400 mono_mb_emit_icall (mb, conv_to_icall (conv));
1401 mono_mb_emit_byte (mb, CEE_STIND_I);
1404 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1405 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1406 case MONO_MARSHAL_CONV_DEL_FTN:
1407 mono_mb_emit_ldloc (mb, 1);
1408 mono_mb_emit_ldloc (mb, 0);
1409 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1410 mono_mb_emit_icall (mb, conv_to_icall (conv));
1411 mono_mb_emit_byte (mb, CEE_STIND_I);
1413 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1414 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1417 mono_mb_emit_ldloc (mb, 1); /* dst */
1418 mono_mb_emit_ldloc (mb, 0);
1419 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1420 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1421 mono_mb_emit_icall (mb, conv_to_icall (conv));
1424 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1425 MonoClass *eklass = NULL;
1428 if (type->type == MONO_TYPE_SZARRAY) {
1429 eklass = type->data.klass;
1431 g_assert_not_reached ();
1434 if (eklass->valuetype)
1435 esize = mono_class_native_size (eklass, NULL);
1437 esize = sizeof (gpointer);
1439 mono_mb_emit_ldloc (mb, 0);
1440 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1441 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1443 if (eklass->blittable) {
1444 mono_mb_emit_ldloc (mb, 1);
1445 mono_mb_emit_ldloc (mb, 0);
1446 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1447 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1448 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1449 mono_mb_emit_byte (mb, CEE_PREFIX1);
1450 mono_mb_emit_byte (mb, CEE_CPBLK);
1452 int array_var, src_var, dst_var, index_var;
1453 guint32 label2, label3;
1455 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1456 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1457 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1460 mono_mb_emit_ldloc (mb, 0);
1461 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1462 mono_mb_emit_stloc (mb, array_var);
1464 /* save the old src pointer */
1465 mono_mb_emit_ldloc (mb, 0);
1466 mono_mb_emit_stloc (mb, src_var);
1467 /* save the old dst pointer */
1468 mono_mb_emit_ldloc (mb, 1);
1469 mono_mb_emit_stloc (mb, dst_var);
1471 /* Emit marshalling loop */
1472 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1473 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1474 mono_mb_emit_stloc (mb, index_var);
1477 label2 = mono_mb_get_label (mb);
1478 mono_mb_emit_ldloc (mb, index_var);
1479 mono_mb_emit_ldloc (mb, array_var);
1480 mono_mb_emit_byte (mb, CEE_LDLEN);
1481 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1484 mono_mb_emit_ldloc (mb, array_var);
1485 mono_mb_emit_ldloc (mb, index_var);
1486 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1487 mono_mb_emit_stloc (mb, 0);
1489 /* dst is already set */
1491 /* Do the conversion */
1492 emit_struct_conv (mb, eklass, FALSE);
1495 mono_mb_emit_add_to_local (mb, index_var, 1);
1497 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1499 mono_mb_patch_branch (mb, label3);
1501 /* restore the old src pointer */
1502 mono_mb_emit_ldloc (mb, src_var);
1503 mono_mb_emit_stloc (mb, 0);
1504 /* restore the old dst pointer */
1505 mono_mb_emit_ldloc (mb, dst_var);
1506 mono_mb_emit_stloc (mb, 1);
1509 mono_mb_patch_branch (mb, pos);
1512 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1513 mono_mb_emit_ldloc (mb, 0);
1514 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1515 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_ldloc (mb, 0);
1519 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1520 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1521 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1522 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1523 mono_mb_patch_short_branch (mb, pos);
1526 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1527 int src_var, dst_var;
1529 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1530 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1532 mono_mb_emit_ldloc (mb, 0);
1533 mono_mb_emit_byte (mb, CEE_LDIND_I);
1534 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1536 /* save the old src pointer */
1537 mono_mb_emit_ldloc (mb, 0);
1538 mono_mb_emit_stloc (mb, src_var);
1539 /* save the old dst pointer */
1540 mono_mb_emit_ldloc (mb, 1);
1541 mono_mb_emit_stloc (mb, dst_var);
1543 /* src = pointer to object data */
1544 mono_mb_emit_ldloc (mb, 0);
1545 mono_mb_emit_byte (mb, CEE_LDIND_I);
1546 mono_mb_emit_icon (mb, sizeof (MonoObject));
1547 mono_mb_emit_byte (mb, CEE_ADD);
1548 mono_mb_emit_stloc (mb, 0);
1550 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1552 /* restore the old src pointer */
1553 mono_mb_emit_ldloc (mb, src_var);
1554 mono_mb_emit_stloc (mb, 0);
1555 /* restore the old dst pointer */
1556 mono_mb_emit_ldloc (mb, dst_var);
1557 mono_mb_emit_stloc (mb, 1);
1559 mono_mb_patch_branch (mb, pos);
1564 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1565 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1566 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1567 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1569 #endif /* DISABLE_COM */
1571 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1572 int dar_release_slot, pos;
1574 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
1577 * The following is ifdefed-out, because I have no way of doing the
1578 * DangerousRelease when destroying the structure
1581 /* set release = false */
1582 mono_mb_emit_icon (mb, 0);
1583 mono_mb_emit_stloc (mb, dar_release_slot);
1584 if (!sh_dangerous_add_ref)
1585 init_safe_handle ();
1587 /* safehandle.DangerousAddRef (ref release) */
1588 mono_mb_emit_ldloc (mb, 0); /* the source */
1589 mono_mb_emit_byte (mb, CEE_LDIND_I);
1590 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
1591 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
1593 mono_mb_emit_ldloc (mb, 0);
1594 mono_mb_emit_byte (mb, CEE_LDIND_I);
1595 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1596 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1597 mono_mb_patch_branch (mb, pos);
1599 /* Pull the handle field from SafeHandle */
1600 mono_mb_emit_ldloc (mb, 1);
1601 mono_mb_emit_ldloc (mb, 0);
1602 mono_mb_emit_byte (mb, CEE_LDIND_I);
1603 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
1604 mono_mb_emit_byte (mb, CEE_LDIND_I);
1605 mono_mb_emit_byte (mb, CEE_STIND_I);
1609 case MONO_MARSHAL_CONV_HANDLEREF: {
1610 mono_mb_emit_ldloc (mb, 1);
1611 mono_mb_emit_ldloc (mb, 0);
1612 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
1613 mono_mb_emit_byte (mb, CEE_ADD);
1614 mono_mb_emit_byte (mb, CEE_LDIND_I);
1615 mono_mb_emit_byte (mb, CEE_STIND_I);
1620 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1621 MonoException *exc = mono_get_exception_not_implemented (msg);
1624 mono_raise_exception (exc);
1630 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1632 MonoMarshalType *info;
1636 emit_struct_conv(mb, klass->parent, to_object);
1638 info = mono_marshal_load_type_info (klass);
1640 if (info->native_size == 0)
1643 if (klass->blittable) {
1644 int msize = mono_class_value_size (klass, NULL);
1645 g_assert (msize == info->native_size);
1646 mono_mb_emit_ldloc (mb, 1);
1647 mono_mb_emit_ldloc (mb, 0);
1648 mono_mb_emit_icon (mb, msize);
1649 mono_mb_emit_byte (mb, CEE_PREFIX1);
1650 mono_mb_emit_byte (mb, CEE_CPBLK);
1652 mono_mb_emit_add_to_local (mb, 0, msize);
1653 mono_mb_emit_add_to_local (mb, 1, msize);
1657 for (i = 0; i < info->num_fields; i++) {
1658 MonoMarshalNative ntype;
1659 MonoMarshalConv conv;
1660 MonoType *ftype = info->fields [i].field->type;
1663 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1665 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1668 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1671 msize = klass->instance_size - info->fields [i].field->offset;
1672 usize = info->native_size - info->fields [i].offset;
1674 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1675 usize = info->fields [i + 1].offset - info->fields [i].offset;
1678 if (klass != mono_defaults.safehandle_class){
1680 * FIXME: Should really check for usize==0 and msize>0, but we apply
1681 * the layout to the managed structure as well.
1684 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1685 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1686 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1687 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1688 "reference field at the same offset as another field.",
1689 mono_type_full_name (&klass->byval_arg));
1692 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1693 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
1694 mono_type_full_name (&klass->byval_arg));
1699 case MONO_MARSHAL_CONV_NONE: {
1702 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1703 ftype->type == MONO_TYPE_U) {
1704 mono_mb_emit_ldloc (mb, 1);
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_byte (mb, CEE_LDIND_I);
1707 mono_mb_emit_byte (mb, CEE_STIND_I);
1718 case MONO_TYPE_BOOLEAN:
1721 case MONO_TYPE_CHAR:
1727 mono_mb_emit_ldloc (mb, 1);
1728 mono_mb_emit_ldloc (mb, 0);
1729 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1730 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1732 case MONO_TYPE_VALUETYPE: {
1733 int src_var, dst_var;
1735 if (ftype->data.klass->enumtype) {
1736 ftype = mono_class_enum_basetype (ftype->data.klass);
1740 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1741 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1743 /* save the old src pointer */
1744 mono_mb_emit_ldloc (mb, 0);
1745 mono_mb_emit_stloc (mb, src_var);
1746 /* save the old dst pointer */
1747 mono_mb_emit_ldloc (mb, 1);
1748 mono_mb_emit_stloc (mb, dst_var);
1750 emit_struct_conv (mb, ftype->data.klass, to_object);
1752 /* restore the old src pointer */
1753 mono_mb_emit_ldloc (mb, src_var);
1754 mono_mb_emit_stloc (mb, 0);
1755 /* restore the old dst pointer */
1756 mono_mb_emit_ldloc (mb, dst_var);
1757 mono_mb_emit_stloc (mb, 1);
1760 case MONO_TYPE_OBJECT: {
1761 mono_init_com_types ();
1763 static MonoMethod *variant_clear = NULL;
1764 static MonoMethod *get_object_for_native_variant = NULL;
1767 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
1768 if (!get_object_for_native_variant)
1769 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1770 mono_mb_emit_ldloc (mb, 1);
1771 mono_mb_emit_ldloc (mb, 0);
1772 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1773 mono_mb_emit_byte (mb, CEE_STIND_REF);
1775 mono_mb_emit_ldloc (mb, 0);
1776 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1779 static MonoMethod *get_native_variant_for_object = NULL;
1781 if (!get_native_variant_for_object)
1782 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1784 mono_mb_emit_ldloc (mb, 0);
1785 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1786 mono_mb_emit_ldloc (mb, 1);
1787 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1793 g_warning ("marshaling type %02x not implemented", ftype->type);
1794 g_assert_not_reached ();
1799 int src_var, dst_var;
1801 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1802 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1804 /* save the old src pointer */
1805 mono_mb_emit_ldloc (mb, 0);
1806 mono_mb_emit_stloc (mb, src_var);
1807 /* save the old dst pointer */
1808 mono_mb_emit_ldloc (mb, 1);
1809 mono_mb_emit_stloc (mb, dst_var);
1812 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1814 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1816 /* restore the old src pointer */
1817 mono_mb_emit_ldloc (mb, src_var);
1818 mono_mb_emit_stloc (mb, 0);
1819 /* restore the old dst pointer */
1820 mono_mb_emit_ldloc (mb, dst_var);
1821 mono_mb_emit_stloc (mb, 1);
1826 mono_mb_emit_add_to_local (mb, 0, usize);
1827 mono_mb_emit_add_to_local (mb, 1, msize);
1829 mono_mb_emit_add_to_local (mb, 0, msize);
1830 mono_mb_emit_add_to_local (mb, 1, usize);
1836 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1838 /* Call DestroyStructure */
1839 /* FIXME: Only do this if needed */
1840 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1841 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1842 mono_mb_emit_ldloc (mb, struct_var);
1843 mono_mb_emit_icall (mb, mono_struct_delete_old);
1847 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
1851 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
1852 mono_mb_emit_byte (mb, CEE_LDIND_U4);
1853 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
1855 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1856 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
1858 mono_mb_emit_icall (mb, checkpoint_func);
1860 mono_mb_patch_branch (mb, pos_noabort);
1864 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1866 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
1869 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
1873 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
1875 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
1879 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
1881 emit_thread_interrupt_checkpoint (mb);
1884 static MonoAsyncResult *
1885 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
1887 MonoMethodMessage *msg;
1888 MonoDelegate *async_callback;
1892 MonoMethod *method = NULL, *method2 = NULL;
1894 g_assert (delegate);
1896 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
1898 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
1899 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
1901 /* If the target is a proxy, make a direct call. Is proxy's work
1902 // to make the call asynchronous.
1904 MonoAsyncResult *ares;
1906 MonoArray *out_args;
1908 method = delegate->method;
1910 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
1911 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
1912 g_assert(handle != NULL);
1913 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
1914 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
1915 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
1916 MONO_OBJECT_SETREF (msg, async_result, ares);
1917 msg->call_type = CallType_BeginInvoke;
1919 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
1924 klass = delegate->object.vtable->klass;
1926 method = mono_get_delegate_invoke (klass);
1927 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
1930 g_assert (method != NULL);
1932 im = mono_get_delegate_invoke (method->klass);
1933 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
1935 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
1939 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
1941 int i, params_var, tmp_var;
1943 /* allocate local (pointer) *params[] */
1944 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1945 /* allocate local (pointer) tmp */
1946 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1948 /* alloate space on stack to store an array of pointers to the arguments */
1949 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
1950 mono_mb_emit_byte (mb, CEE_PREFIX1);
1951 mono_mb_emit_byte (mb, CEE_LOCALLOC);
1952 mono_mb_emit_stloc (mb, params_var);
1955 mono_mb_emit_ldloc (mb, params_var);
1956 mono_mb_emit_stloc (mb, tmp_var);
1958 if (save_this && sig->hasthis) {
1959 mono_mb_emit_ldloc (mb, tmp_var);
1960 mono_mb_emit_ldarg_addr (mb, 0);
1961 mono_mb_emit_byte (mb, CEE_STIND_I);
1962 /* tmp = tmp + sizeof (gpointer) */
1963 if (sig->param_count)
1964 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1968 for (i = 0; i < sig->param_count; i++) {
1969 mono_mb_emit_ldloc (mb, tmp_var);
1970 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
1971 mono_mb_emit_byte (mb, CEE_STIND_I);
1972 /* tmp = tmp + sizeof (gpointer) */
1973 if (i < (sig->param_count - 1))
1974 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
1981 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
1985 GString *res = g_string_new ("");
1988 g_string_append (res, prefix);
1989 g_string_append_c (res, '_');
1992 mono_type_get_desc (res, sig->ret, FALSE);
1995 g_string_append (res, "__this__");
1997 for (i = 0; i < sig->param_count; ++i) {
1998 g_string_append_c (res, '_');
1999 mono_type_get_desc (res, sig->params [i], FALSE);
2002 g_string_free (res, FALSE);
2007 * mono_marshal_get_string_encoding:
2009 * Return the string encoding which should be used for a given parameter.
2011 static MonoMarshalNative
2012 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2014 /* First try the parameter marshal info */
2016 if (spec->native == MONO_NATIVE_LPARRAY) {
2017 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2018 return spec->data.array_data.elem_type;
2021 return spec->native;
2025 return MONO_NATIVE_LPSTR;
2027 /* Then try the method level marshal info */
2028 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2029 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2030 return MONO_NATIVE_LPSTR;
2031 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2032 return MONO_NATIVE_LPWSTR;
2033 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2034 #ifdef PLATFORM_WIN32
2035 return MONO_NATIVE_LPWSTR;
2037 return MONO_NATIVE_LPSTR;
2040 return MONO_NATIVE_LPSTR;
2044 static MonoMarshalConv
2045 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2047 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2050 case MONO_NATIVE_LPWSTR:
2051 return MONO_MARSHAL_CONV_STR_LPWSTR;
2052 case MONO_NATIVE_LPSTR:
2053 return MONO_MARSHAL_CONV_STR_LPSTR;
2054 case MONO_NATIVE_LPTSTR:
2055 return MONO_MARSHAL_CONV_STR_LPTSTR;
2056 case MONO_NATIVE_BSTR:
2057 return MONO_MARSHAL_CONV_STR_BSTR;
2063 static MonoMarshalConv
2064 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2066 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2069 case MONO_NATIVE_LPWSTR:
2070 return MONO_MARSHAL_CONV_SB_LPWSTR;
2072 case MONO_NATIVE_LPSTR:
2073 return MONO_MARSHAL_CONV_SB_LPSTR;
2075 case MONO_NATIVE_LPTSTR:
2076 return MONO_MARSHAL_CONV_SB_LPTSTR;
2083 static MonoMarshalConv
2084 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2086 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2091 case MONO_NATIVE_LPWSTR:
2093 return MONO_MARSHAL_CONV_LPWSTR_STR;
2094 case MONO_NATIVE_LPSTR:
2095 return MONO_MARSHAL_CONV_LPSTR_STR;
2096 case MONO_NATIVE_LPTSTR:
2097 return MONO_MARSHAL_CONV_LPTSTR_STR;
2098 case MONO_NATIVE_BSTR:
2099 return MONO_MARSHAL_CONV_BSTR_STR;
2105 static MonoMarshalConv
2106 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2108 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2113 case MONO_NATIVE_LPWSTR:
2115 * mono_string_builder_to_utf16 does not allocate a
2116 * new buffer, so no need to free it.
2119 return MONO_MARSHAL_CONV_LPWSTR_SB;
2120 case MONO_NATIVE_LPSTR:
2121 return MONO_MARSHAL_CONV_LPSTR_SB;
2123 case MONO_NATIVE_LPTSTR:
2124 return MONO_MARSHAL_CONV_LPTSTR_SB;
2132 * Return whenever a field of a native structure or an array member needs to
2136 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2138 MonoMarshalNative encoding;
2139 MonoMarshalConv conv;
2142 case MONO_TYPE_VALUETYPE:
2143 /* FIXME: Optimize this */
2145 case MONO_TYPE_OBJECT:
2146 case MONO_TYPE_CLASS:
2147 if (t->data.klass == mono_defaults.stringbuilder_class) {
2149 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2153 case MONO_TYPE_STRING:
2154 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2155 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2162 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2165 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2168 mono_marshal_lock ();
2171 g_hash_table_new (hash_func, equal_func);
2172 mono_memory_barrier ();
2175 mono_marshal_unlock ();
2181 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2183 return get_cache (var, hash_func, equal_func);
2187 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2191 mono_marshal_lock ();
2192 res = g_hash_table_lookup (cache, key);
2193 mono_marshal_unlock ();
2198 mono_marshal_method_set_wrapper_data (MonoMethod *method, gpointer data)
2202 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2205 datav = ((MonoMethodWrapper *)method)->method_data;
2209 /* Create the method from the builder and place it in the cache */
2211 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2212 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2217 mono_marshal_lock ();
2218 res = g_hash_table_lookup (cache, key);
2219 mono_marshal_unlock ();
2222 newm = mono_mb_create_method (mb, sig, max_stack);
2223 mono_marshal_lock ();
2224 res = g_hash_table_lookup (cache, key);
2227 g_hash_table_insert (cache, key, res);
2228 mono_marshal_method_set_wrapper_data (res, key);
2229 mono_marshal_unlock ();
2231 mono_marshal_unlock ();
2232 mono_free_method (newm);
2240 static inline MonoMethod*
2241 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2243 MonoMethod *res = NULL;
2244 MonoRemotingMethods *wrps;
2246 mono_marshal_lock ();
2247 if (method->klass->image->remoting_invoke_cache)
2248 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2253 switch (wrapper_type) {
2254 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2255 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2256 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2257 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2261 /* it is important to do the unlock after the load from wrps, since in
2262 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2263 * to take the loader lock and some other thread may set the fields.
2265 mono_marshal_unlock ();
2269 /* Create the method from the builder and place it in the cache */
2270 static inline MonoMethod*
2271 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2272 MonoMethodSignature *sig, int max_stack)
2274 MonoMethod **res = NULL;
2275 MonoRemotingMethods *wrps;
2276 GHashTable *cache = get_cache (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL);
2278 mono_marshal_lock ();
2279 wrps = g_hash_table_lookup (cache, key);
2281 wrps = g_new0 (MonoRemotingMethods, 1);
2282 g_hash_table_insert (cache, key, wrps);
2285 switch (mb->method->wrapper_type) {
2286 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2287 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2288 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2289 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2290 default: g_assert_not_reached (); break;
2292 mono_marshal_unlock ();
2296 newm = mono_mb_create_method (mb, sig, max_stack);
2298 mono_marshal_lock ();
2301 mono_marshal_method_set_wrapper_data (*res, key);
2302 mono_marshal_unlock ();
2304 mono_marshal_unlock ();
2305 mono_free_method (newm);
2313 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2317 if (wrapper->wrapper_type == MONO_WRAPPER_NONE || wrapper->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2320 res = mono_method_get_wrapper_data (wrapper, 1);
2327 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2329 MonoMethodSignature *sig;
2330 MonoMethodBuilder *mb;
2336 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2337 !strcmp (method->name, "BeginInvoke"));
2339 sig = mono_signature_no_pinvoke (method);
2341 cache = get_cache (&method->klass->image->delegate_begin_invoke_cache,
2342 (GHashFunc)mono_signature_hash,
2343 (GCompareFunc)mono_metadata_signature_equal);
2344 if ((res = mono_marshal_find_in_cache (cache, sig)))
2347 g_assert (sig->hasthis);
2349 name = mono_signature_to_name (sig, "begin_invoke");
2350 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2353 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2355 mono_mb_emit_ldarg (mb, 0);
2356 mono_mb_emit_ldloc (mb, params_var);
2357 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2358 mono_mb_emit_byte (mb, CEE_RET);
2360 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2366 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2368 MonoDomain *domain = mono_domain_get ();
2369 MonoAsyncResult *ares;
2370 MonoMethod *method = NULL;
2371 MonoMethodSignature *sig;
2372 MonoMethodMessage *msg;
2373 MonoObject *res, *exc;
2374 MonoArray *out_args;
2377 g_assert (delegate);
2379 if (!delegate->method_info) {
2380 g_assert (delegate->method);
2381 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2384 if (!delegate->method_info || !delegate->method_info->method)
2385 g_assert_not_reached ();
2387 klass = delegate->object.vtable->klass;
2389 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2390 g_assert (method != NULL);
2392 sig = mono_signature_no_pinvoke (method);
2394 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2396 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2398 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."));
2400 if (ares->async_delegate != (MonoObject*)delegate && mono_framework_version () >= 2) {
2401 mono_raise_exception (mono_get_exception_invalid_operation (
2402 "The IAsyncResult object provided does not match this delegate."));
2406 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2407 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2408 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2409 mono_message_init (domain, msg, delegate->method_info, NULL);
2410 msg->call_type = CallType_EndInvoke;
2411 MONO_OBJECT_SETREF (msg, async_result, ares);
2412 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2414 res = mono_thread_pool_finish (ares, &out_args, &exc);
2418 if (((MonoException*)exc)->stack_trace) {
2419 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2421 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2423 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2426 mono_raise_exception ((MonoException*)exc);
2429 mono_method_return_message_restore (method, params, out_args);
2434 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2436 MonoType *t = mono_type_get_underlying_type (return_type);
2438 if (return_type->byref)
2439 return_type = &mono_defaults.int_class->byval_arg;
2442 case MONO_TYPE_VOID:
2443 g_assert_not_reached ();
2446 case MONO_TYPE_STRING:
2447 case MONO_TYPE_CLASS:
2448 case MONO_TYPE_OBJECT:
2449 case MONO_TYPE_ARRAY:
2450 case MONO_TYPE_SZARRAY:
2454 case MONO_TYPE_BOOLEAN:
2457 case MONO_TYPE_CHAR:
2467 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2468 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2470 case MONO_TYPE_GENERICINST:
2471 if (!mono_type_generic_inst_is_valuetype (return_type))
2474 case MONO_TYPE_VALUETYPE: {
2475 MonoClass *klass = mono_class_from_mono_type (return_type);
2476 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2477 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2481 g_warning ("type 0x%x not handled", return_type->type);
2482 g_assert_not_reached ();
2485 mono_mb_emit_byte (mb, CEE_RET);
2489 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2491 MonoMethodSignature *sig;
2492 MonoMethodBuilder *mb;
2498 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2499 !strcmp (method->name, "EndInvoke"));
2501 sig = mono_signature_no_pinvoke (method);
2503 cache = get_cache (&method->klass->image->delegate_end_invoke_cache,
2504 (GHashFunc)mono_signature_hash,
2505 (GCompareFunc)mono_metadata_signature_equal);
2506 if ((res = mono_marshal_find_in_cache (cache, sig)))
2509 g_assert (sig->hasthis);
2511 name = mono_signature_to_name (sig, "end_invoke");
2512 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2515 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2517 mono_mb_emit_ldarg (mb, 0);
2518 mono_mb_emit_ldloc (mb, params_var);
2519 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2521 if (sig->ret->type == MONO_TYPE_VOID) {
2522 mono_mb_emit_byte (mb, CEE_POP);
2523 mono_mb_emit_byte (mb, CEE_RET);
2525 mono_mb_emit_restore_result (mb, sig->ret);
2527 res = mono_mb_create_and_cache (cache, sig,
2528 mb, sig, sig->param_count + 16);
2535 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2537 MonoMethodMessage *msg;
2538 MonoTransparentProxy *this;
2539 MonoObject *res, *exc;
2540 MonoArray *out_args;
2542 this = *((MonoTransparentProxy **)params [0]);
2545 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2547 /* skip the this pointer */
2550 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2553 MonoMethodSignature *sig = mono_method_signature (method);
2554 int count = sig->param_count;
2555 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2557 for (i=0; i<count; i++) {
2558 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2559 if (class->valuetype) {
2560 if (sig->params [i]->byref) {
2561 mparams[i] = *((gpointer *)params [i]);
2563 /* runtime_invoke expects a boxed instance */
2564 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
2565 mparams[i] = mono_nullable_box (params [i], class);
2567 mparams[i] = params [i];
2570 mparams[i] = *((gpointer**)params [i]);
2574 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2577 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2579 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2582 mono_raise_exception ((MonoException *)exc);
2584 mono_method_return_message_restore (method, params, out_args);
2590 mono_marshal_get_remoting_invoke (MonoMethod *method)
2592 MonoMethodSignature *sig;
2593 MonoMethodBuilder *mb;
2599 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
2602 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
2603 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote) {
2605 return mono_cominterop_get_invoke (method);
2607 g_assert_not_reached ();
2611 sig = mono_signature_no_pinvoke (method);
2613 /* we cant remote methods without this pointer */
2617 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
2620 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
2621 mb->method->save_lmf = 1;
2623 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
2625 mono_mb_emit_ptr (mb, method);
2626 mono_mb_emit_ldloc (mb, params_var);
2627 mono_mb_emit_icall (mb, mono_remoting_wrapper);
2628 emit_thread_interrupt_checkpoint (mb);
2630 if (sig->ret->type == MONO_TYPE_VOID) {
2631 mono_mb_emit_byte (mb, CEE_POP);
2632 mono_mb_emit_byte (mb, CEE_RET);
2634 mono_mb_emit_restore_result (mb, sig->ret);
2637 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
2643 /* mono_get_xdomain_marshal_type()
2644 * Returns the kind of marshalling that a type needs for cross domain calls.
2646 static MonoXDomainMarshalType
2647 mono_get_xdomain_marshal_type (MonoType *t)
2650 case MONO_TYPE_VOID:
2651 g_assert_not_reached ();
2655 case MONO_TYPE_BOOLEAN:
2658 case MONO_TYPE_CHAR:
2665 return MONO_MARSHAL_NONE;
2666 case MONO_TYPE_STRING:
2667 return MONO_MARSHAL_COPY;
2668 case MONO_TYPE_ARRAY:
2669 case MONO_TYPE_SZARRAY: {
2670 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
2671 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
2672 return MONO_MARSHAL_COPY;
2677 return MONO_MARSHAL_SERIALIZE;
2681 /* mono_marshal_xdomain_copy_value
2682 * Makes a copy of "val" suitable for the current domain.
2685 mono_marshal_xdomain_copy_value (MonoObject *val)
2688 if (val == NULL) return NULL;
2690 domain = mono_domain_get ();
2692 switch (mono_object_class (val)->byval_arg.type) {
2693 case MONO_TYPE_VOID:
2694 g_assert_not_reached ();
2698 case MONO_TYPE_BOOLEAN:
2701 case MONO_TYPE_CHAR:
2707 case MONO_TYPE_R8: {
2708 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
2710 case MONO_TYPE_STRING: {
2711 MonoString *str = (MonoString *) val;
2712 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2714 case MONO_TYPE_ARRAY:
2715 case MONO_TYPE_SZARRAY: {
2717 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2718 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2719 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2720 if (mt == MONO_MARSHAL_COPY) {
2721 int i, len = mono_array_length (acopy);
2722 for (i = 0; i < len; i++) {
2723 MonoObject *item = mono_array_get (acopy, gpointer, i);
2724 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2727 return (MonoObject *) acopy;
2731 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
2732 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
2733 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
2734 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
2735 newsb->length = oldsb->length;
2736 newsb->max_capacity = (gint32)0x7fffffff;
2737 return (MonoObject *) newsb;
2742 /* mono_marshal_xdomain_copy_out_value()
2743 * Copies the contents of the src instance into the dst instance. src and dst
2744 * must have the same type, and if they are arrays, the same size.
2747 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
2749 if (src == NULL || dst == NULL) return;
2751 g_assert (mono_object_class (src) == mono_object_class (dst));
2753 switch (mono_object_class (src)->byval_arg.type) {
2754 case MONO_TYPE_ARRAY:
2755 case MONO_TYPE_SZARRAY: {
2756 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
2757 if (mt == MONO_MARSHAL_SERIALIZE) return;
2758 if (mt == MONO_MARSHAL_COPY) {
2759 int i, len = mono_array_length ((MonoArray *)dst);
2760 for (i = 0; i < len; i++) {
2761 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
2762 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
2765 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
2771 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
2772 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
2773 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
2775 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)));
2776 dst_sb->cached_str = NULL;
2777 dst_sb->length = src_sb->length;
2782 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
2784 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
2785 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2789 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
2791 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
2794 /* mono_marshal_supports_fast_xdomain()
2795 * Returns TRUE if the method can use the fast xdomain wrapper.
2798 mono_marshal_supports_fast_xdomain (MonoMethod *method)
2800 return !method->klass->contextbound &&
2801 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
2805 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
2807 MonoDomain *current_domain = mono_domain_get ();
2808 MonoDomain *domain = mono_domain_get_by_id (id);
2810 if (!domain || !mono_domain_set (domain, FALSE))
2811 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
2814 mono_thread_push_appdomain_ref (domain);
2816 mono_thread_pop_appdomain_ref ();
2818 return current_domain->domain_id;
2822 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
2824 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
2827 /* mono_marshal_emit_load_domain_method ()
2828 * Loads into the stack a pointer to the code of the provided method for
2829 * the current domain.
2832 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
2834 /* We need a pointer to the method for the running domain (not the domain
2835 * that compiles the method).
2837 mono_mb_emit_ptr (mb, method);
2838 mono_mb_emit_icall (mb, mono_compile_method);
2841 /* mono_marshal_check_domain_image ()
2842 * Returns TRUE if the image is loaded in the specified
2843 * application domain.
2846 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
2851 MonoDomain *domain = mono_domain_get_by_id (domain_id);
2855 mono_domain_assemblies_lock (domain);
2856 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
2858 if (ass->image == image)
2861 mono_domain_assemblies_unlock (domain);
2866 /* mono_marshal_get_xappdomain_dispatch ()
2867 * Generates a method that dispatches a method call from another domain into
2868 * the current domain.
2871 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
2873 MonoMethodSignature *sig, *csig;
2874 MonoMethodBuilder *mb;
2876 int i, j, param_index, copy_locals_base;
2877 MonoClass *ret_class = NULL;
2878 int loc_array=0, loc_return=0, loc_serialized_exc=0;
2879 MonoExceptionClause *main_clause;
2881 gboolean copy_return;
2883 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
2886 sig = mono_method_signature (method);
2887 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
2890 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
2891 csig->params [j++] = &mono_defaults.object_class->byval_arg;
2892 csig->params [j++] = &byte_array_class->this_arg;
2893 csig->params [j++] = &byte_array_class->this_arg;
2894 for (i = 0; i < sig->param_count; i++) {
2895 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
2896 csig->params [j++] = sig->params [i];
2899 csig->ret = sig->ret;
2901 csig->ret = &mono_defaults.void_class->byval_arg;
2903 csig->hasthis = FALSE;
2905 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
2906 mb->method->save_lmf = 1;
2910 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
2911 if (complex_count > 0)
2912 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2913 if (sig->ret->type != MONO_TYPE_VOID) {
2914 loc_return = mono_mb_add_local (mb, sig->ret);
2915 ret_class = mono_class_from_mono_type (sig->ret);
2920 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
2921 main_clause->try_offset = mono_mb_get_label (mb);
2923 /* Clean the call context */
2925 mono_mb_emit_byte (mb, CEE_LDNULL);
2926 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
2927 mono_mb_emit_byte (mb, CEE_POP);
2929 /* Deserialize call data */
2931 mono_mb_emit_ldarg (mb, 1);
2932 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2933 mono_mb_emit_byte (mb, CEE_DUP);
2934 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2936 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
2937 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
2939 if (complex_count > 0)
2940 mono_mb_emit_stloc (mb, loc_array);
2942 mono_mb_emit_byte (mb, CEE_POP);
2944 mono_mb_patch_short_branch (mb, pos);
2946 /* Get the target object */
2948 mono_mb_emit_ldarg (mb, 0);
2949 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
2951 /* Load the arguments */
2953 copy_locals_base = mb->locals;
2954 param_index = 3; // Index of the first non-serialized parameter of this wrapper
2956 for (i = 0; i < sig->param_count; i++) {
2957 MonoType *pt = sig->params [i];
2958 MonoClass *pclass = mono_class_from_mono_type (pt);
2959 switch (marshal_types [i]) {
2960 case MONO_MARSHAL_SERIALIZE: {
2961 /* take the value from the serialized array */
2962 mono_mb_emit_ldloc (mb, loc_array);
2963 mono_mb_emit_icon (mb, j++);
2965 if (pclass->valuetype) {
2966 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2967 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
2969 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
2972 if (pclass->valuetype) {
2973 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2974 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
2975 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
2977 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
2978 if (pclass != mono_defaults.object_class) {
2979 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
2985 case MONO_MARSHAL_COPY_OUT: {
2986 /* Keep a local copy of the value since we need to copy it back after the call */
2987 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
2988 mono_mb_emit_ldarg (mb, param_index++);
2989 mono_marshal_emit_xdomain_copy_value (mb, pclass);
2990 mono_mb_emit_byte (mb, CEE_DUP);
2991 mono_mb_emit_stloc (mb, copy_local);
2994 case MONO_MARSHAL_COPY: {
2995 mono_mb_emit_ldarg (mb, param_index);
2997 mono_mb_emit_byte (mb, CEE_DUP);
2998 mono_mb_emit_byte (mb, CEE_DUP);
2999 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3000 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3001 mono_mb_emit_byte (mb, CEE_STIND_REF);
3003 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3008 case MONO_MARSHAL_NONE:
3009 mono_mb_emit_ldarg (mb, param_index++);
3014 /* Make the call to the real object */
3016 emit_thread_force_interrupt_checkpoint (mb);
3018 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3020 if (sig->ret->type != MONO_TYPE_VOID)
3021 mono_mb_emit_stloc (mb, loc_return);
3023 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3027 for (i = 0; i < sig->param_count; i++) {
3028 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3029 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3030 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3031 mono_mb_emit_ldarg (mb, param_index);
3032 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3037 /* Serialize the return values */
3039 if (complex_out_count > 0) {
3040 /* Reset parameters in the array that don't need to be serialized back */
3042 for (i = 0; i < sig->param_count; i++) {
3043 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3044 if (!sig->params [i]->byref) {
3045 mono_mb_emit_ldloc (mb, loc_array);
3046 mono_mb_emit_icon (mb, j);
3047 mono_mb_emit_byte (mb, CEE_LDNULL);
3048 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3053 /* Add the return value to the array */
3055 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3056 mono_mb_emit_ldloc (mb, loc_array);
3057 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3058 mono_mb_emit_ldloc (mb, loc_return);
3059 if (ret_class->valuetype) {
3060 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3062 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3067 mono_mb_emit_ldarg (mb, 1);
3068 mono_mb_emit_ldloc (mb, loc_array);
3069 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3070 mono_mb_emit_byte (mb, CEE_STIND_REF);
3071 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3072 mono_mb_emit_ldarg (mb, 1);
3073 mono_mb_emit_ldloc (mb, loc_return);
3074 if (ret_class->valuetype) {
3075 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3077 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3078 mono_mb_emit_byte (mb, CEE_STIND_REF);
3080 mono_mb_emit_ldarg (mb, 1);
3081 mono_mb_emit_byte (mb, CEE_LDNULL);
3082 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3083 mono_mb_emit_byte (mb, CEE_STIND_REF);
3086 mono_mb_emit_ldarg (mb, 2);
3087 mono_mb_emit_byte (mb, CEE_LDNULL);
3088 mono_mb_emit_byte (mb, CEE_STIND_REF);
3089 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3091 /* Main exception catch */
3092 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3093 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3094 main_clause->data.catch_class = mono_defaults.object_class;
3097 main_clause->handler_offset = mono_mb_get_label (mb);
3098 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3099 mono_mb_emit_stloc (mb, loc_serialized_exc);
3100 mono_mb_emit_ldarg (mb, 2);
3101 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3102 mono_mb_emit_byte (mb, CEE_STIND_REF);
3103 mono_mb_emit_branch (mb, CEE_LEAVE);
3104 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3107 mono_mb_patch_branch (mb, pos_leave);
3110 mono_mb_emit_ldloc (mb, loc_return);
3112 mono_mb_emit_byte (mb, CEE_RET);
3114 mono_mb_set_clauses (mb, 1, main_clause);
3116 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3122 /* mono_marshal_get_xappdomain_invoke ()
3123 * Generates a fast remoting wrapper for cross app domain calls.
3126 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3128 MonoMethodSignature *sig;
3129 MonoMethodBuilder *mb;
3131 int i, j, complex_count, complex_out_count, copy_locals_base;
3133 MonoClass *ret_class = NULL;
3134 MonoMethod *xdomain_method;
3135 int ret_marshal_type = MONO_MARSHAL_NONE;
3136 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3137 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3138 int pos, pos_dispatch, pos_noex;
3139 gboolean copy_return = FALSE;
3143 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3146 /* we cant remote methods without this pointer */
3147 if (!mono_method_signature (method)->hasthis)
3150 if (!mono_marshal_supports_fast_xdomain (method))
3151 return mono_marshal_get_remoting_invoke (method);
3153 mono_remoting_marshal_init ();
3155 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3158 sig = mono_signature_no_pinvoke (method);
3160 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3161 mb->method->save_lmf = 1;
3163 /* Count the number of parameters that need to be serialized */
3165 marshal_types = alloca (sizeof (int) * sig->param_count);
3166 complex_count = complex_out_count = 0;
3167 for (i = 0; i < sig->param_count; i++) {
3168 MonoType *ptype = sig->params[i];
3169 int mt = mono_get_xdomain_marshal_type (ptype);
3171 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3172 * the copy will be made by reusing the original object instance
3174 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3175 mt = MONO_MARSHAL_COPY_OUT;
3176 else if (mt == MONO_MARSHAL_SERIALIZE) {
3178 if (ptype->byref) complex_out_count++;
3180 marshal_types [i] = mt;
3183 if (sig->ret->type != MONO_TYPE_VOID) {
3184 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3185 ret_class = mono_class_from_mono_type (sig->ret);
3186 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3191 if (complex_count > 0)
3192 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3193 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3194 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3196 loc_return = mono_mb_add_local (mb, sig->ret);
3197 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3198 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3199 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3200 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3202 /* Save thread domain data */
3204 mono_mb_emit_icall (mb, mono_context_get);
3205 mono_mb_emit_byte (mb, CEE_DUP);
3206 mono_mb_emit_stloc (mb, loc_context);
3208 /* If the thread is not running in the default context, it needs to go
3209 * through the whole remoting sink, since the context is going to change
3211 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3212 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3214 /* Another case in which the fast path can't be used: when the target domain
3215 * has a different image for the same assembly.
3218 /* Get the target domain id */
3220 mono_mb_emit_ldarg (mb, 0);
3221 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3222 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3223 mono_mb_emit_byte (mb, CEE_DUP);
3224 mono_mb_emit_stloc (mb, loc_real_proxy);
3226 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3227 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3228 mono_mb_emit_stloc (mb, loc_domainid);
3230 /* Check if the target domain has the same image for the required assembly */
3232 mono_mb_emit_ldloc (mb, loc_domainid);
3233 mono_mb_emit_ptr (mb, method->klass->image);
3234 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3235 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3237 /* Use the whole remoting sink to dispatch this message */
3239 mono_mb_patch_short_branch (mb, pos);
3241 mono_mb_emit_ldarg (mb, 0);
3242 for (i = 0; i < sig->param_count; i++)
3243 mono_mb_emit_ldarg (mb, i + 1);
3245 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3246 mono_mb_emit_byte (mb, CEE_RET);
3247 mono_mb_patch_short_branch (mb, pos_dispatch);
3249 /* Create the array that will hold the parameters to be serialized */
3251 if (complex_count > 0) {
3252 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 */
3253 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3256 for (i = 0; i < sig->param_count; i++) {
3258 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3259 pclass = mono_class_from_mono_type (sig->params[i]);
3260 mono_mb_emit_byte (mb, CEE_DUP);
3261 mono_mb_emit_icon (mb, j);
3262 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3263 if (sig->params[i]->byref) {
3264 if (pclass->valuetype)
3265 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3267 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3269 if (pclass->valuetype)
3270 mono_mb_emit_op (mb, CEE_BOX, pclass);
3271 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3274 mono_mb_emit_stloc (mb, loc_array);
3276 /* Serialize parameters */
3278 mono_mb_emit_ldloc (mb, loc_array);
3279 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3280 mono_mb_emit_stloc (mb, loc_serialized_data);
3282 mono_mb_emit_byte (mb, CEE_LDNULL);
3283 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3284 mono_mb_emit_stloc (mb, loc_serialized_data);
3289 mono_mb_emit_ldloc (mb, loc_domainid);
3290 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3291 mono_marshal_emit_switch_domain (mb);
3292 mono_mb_emit_stloc (mb, loc_old_domainid);
3294 /* Load the arguments */
3296 mono_mb_emit_ldloc (mb, loc_real_proxy);
3297 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3298 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3300 copy_locals_base = mb->locals;
3301 for (i = 0; i < sig->param_count; i++) {
3302 switch (marshal_types [i]) {
3303 case MONO_MARSHAL_SERIALIZE:
3305 case MONO_MARSHAL_COPY: {
3306 mono_mb_emit_ldarg (mb, i+1);
3307 if (sig->params [i]->byref) {
3308 /* make a local copy of the byref parameter. The real parameter
3309 * will be updated after the xdomain call
3311 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3312 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3313 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3314 mono_mb_emit_stloc (mb, copy_local);
3315 mono_mb_emit_ldloc_addr (mb, copy_local);
3319 case MONO_MARSHAL_COPY_OUT:
3320 case MONO_MARSHAL_NONE:
3321 mono_mb_emit_ldarg (mb, i+1);
3326 /* Make the call to the invoke wrapper in the target domain */
3328 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3329 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3330 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3333 mono_mb_emit_stloc (mb, loc_return);
3337 mono_mb_emit_ldloc (mb, loc_old_domainid);
3338 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
3339 mono_marshal_emit_switch_domain (mb);
3340 mono_mb_emit_byte (mb, CEE_POP);
3342 /* Restore thread domain data */
3344 mono_mb_emit_ldloc (mb, loc_context);
3345 mono_mb_emit_icall (mb, mono_context_set);
3347 /* if (loc_serialized_exc != null) ... */
3349 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3350 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3352 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3353 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3354 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3355 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
3356 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
3357 mono_mb_emit_byte (mb, CEE_THROW);
3358 mono_mb_patch_short_branch (mb, pos_noex);
3360 /* copy back non-serialized output parameters */
3363 for (i = 0; i < sig->param_count; i++) {
3364 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
3365 mono_mb_emit_ldarg (mb, i + 1);
3366 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3367 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
3368 mono_mb_emit_byte (mb, CEE_STIND_REF);
3371 /* Deserialize out parameters */
3373 if (complex_out_count > 0) {
3374 mono_mb_emit_ldloc (mb, loc_serialized_data);
3375 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3376 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3377 mono_mb_emit_stloc (mb, loc_array);
3379 /* Copy back output parameters and return type */
3382 for (i = 0; i < sig->param_count; i++) {
3383 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3384 if (sig->params[i]->byref) {
3385 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3386 mono_mb_emit_ldarg (mb, i + 1);
3387 mono_mb_emit_ldloc (mb, loc_array);
3388 mono_mb_emit_icon (mb, j);
3389 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3390 if (pclass->valuetype) {
3391 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3392 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3393 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
3395 if (pclass != mono_defaults.object_class)
3396 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3397 mono_mb_emit_byte (mb, CEE_STIND_REF);
3403 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3404 mono_mb_emit_ldloc (mb, loc_array);
3405 mono_mb_emit_icon (mb, complex_count);
3406 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3407 if (ret_class->valuetype) {
3408 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3409 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3412 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3413 mono_mb_emit_ldloc (mb, loc_serialized_data);
3414 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3415 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3416 if (ret_class->valuetype) {
3417 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
3418 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
3419 } else if (ret_class != mono_defaults.object_class) {
3420 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
3423 mono_mb_emit_ldloc (mb, loc_serialized_data);
3424 mono_mb_emit_byte (mb, CEE_DUP);
3425 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3426 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3428 mono_mb_patch_short_branch (mb, pos);
3429 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3430 mono_mb_emit_byte (mb, CEE_POP);
3434 mono_mb_emit_ldloc (mb, loc_return);
3435 if (ret_marshal_type == MONO_MARSHAL_COPY)
3436 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
3439 mono_mb_emit_byte (mb, CEE_RET);
3441 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3448 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
3450 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
3451 return mono_marshal_get_xappdomain_invoke (method);
3452 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
3454 return mono_cominterop_get_invoke (method);
3456 g_assert_not_reached ();
3459 return mono_marshal_get_remoting_invoke (method);
3463 G_GNUC_UNUSED static gpointer
3464 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
3466 if (rp->target_domain_id != -1)
3467 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
3469 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
3473 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
3475 MonoMethodSignature *sig;
3476 MonoMethodBuilder *mb;
3477 MonoMethod *res, *native;
3478 int i, pos, pos_rem;
3482 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
3485 /* we cant remote methods without this pointer */
3486 g_assert (mono_method_signature (method)->hasthis);
3488 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
3491 sig = mono_signature_no_pinvoke (method);
3493 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
3495 for (i = 0; i <= sig->param_count; i++)
3496 mono_mb_emit_ldarg (mb, i);
3498 mono_mb_emit_ldarg (mb, 0);
3499 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
3501 if (mono_marshal_supports_fast_xdomain (method)) {
3502 mono_mb_emit_ldarg (mb, 0);
3503 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
3505 /* wrapper for cross app domain calls */
3506 native = mono_marshal_get_xappdomain_invoke (method);
3507 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3508 mono_mb_emit_byte (mb, CEE_RET);
3510 mono_mb_patch_branch (mb, pos_rem);
3512 /* wrapper for normal remote calls */
3513 native = mono_marshal_get_remoting_invoke (method);
3514 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
3515 mono_mb_emit_byte (mb, CEE_RET);
3518 mono_mb_patch_branch (mb, pos);
3519 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
3520 mono_mb_emit_byte (mb, CEE_RET);
3522 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3530 MonoMethodSignature *sig;
3532 } SignatureMethodPair;
3535 signature_method_pair_hash (gconstpointer data)
3537 SignatureMethodPair *pair = (SignatureMethodPair*)data;
3539 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
3543 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
3545 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
3549 free_signature_method_pair (SignatureMethodPair *pair)
3555 * the returned method invokes all methods in a multicast delegate.
3558 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3560 MonoMethodSignature *sig, *static_sig;
3562 MonoMethodBuilder *mb;
3563 MonoMethod *res, *newm;
3565 SignatureMethodPair key;
3566 SignatureMethodPair *new_key;
3567 int local_prev, local_target;
3570 MonoMethod *target_method = NULL;
3571 MonoClass *target_class = NULL;
3572 gboolean callvirt = FALSE;
3575 * If the delegate target is null, and the target method is not static, a virtual
3576 * call is made to that method with the first delegate argument as this. This is
3577 * a non-documented .NET feature.
3579 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3581 target_method = del->method;
3582 if (target_method->is_inflated) {
3583 MonoType *target_type;
3585 g_assert (method->signature->hasthis);
3586 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3587 mono_method_get_context (method));
3588 target_class = mono_class_from_mono_type (target_type);
3590 target_class = del->method->klass;
3594 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3595 !strcmp (method->name, "Invoke"));
3597 sig = mono_signature_no_pinvoke (method);
3600 /* We need to cache the signature+method pair */
3601 mono_marshal_lock ();
3602 if (!method->klass->image->delegate_abstract_invoke_cache)
3603 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);
3604 cache = method->klass->image->delegate_abstract_invoke_cache;
3606 key.method = target_method;
3607 res = g_hash_table_lookup (cache, &key);
3608 mono_marshal_unlock ();
3612 cache = get_cache (&method->klass->image->delegate_invoke_cache,
3613 (GHashFunc)mono_signature_hash,
3614 (GCompareFunc)mono_metadata_signature_equal);
3615 if ((res = mono_marshal_find_in_cache (cache, sig)))
3619 static_sig = signature_dup (method->klass->image, sig);
3620 static_sig->hasthis = 0;
3622 name = mono_signature_to_name (sig, "invoke");
3623 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3626 /* allocate local 0 (object) */
3627 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3628 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3630 g_assert (sig->hasthis);
3634 * prev.Invoke( args .. );
3635 * return this.<target>( args .. );
3638 /* this wrapper can be used in unmanaged-managed transitions */
3639 emit_thread_interrupt_checkpoint (mb);
3641 /* get this->prev */
3642 mono_mb_emit_ldarg (mb, 0);
3643 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
3644 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3645 mono_mb_emit_stloc (mb, local_prev);
3646 mono_mb_emit_ldloc (mb, local_prev);
3648 /* if prev != null */
3649 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3653 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3654 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
3656 mono_mb_emit_ldloc (mb, local_prev);
3657 for (i = 0; i < sig->param_count; i++)
3658 mono_mb_emit_ldarg (mb, i + 1);
3659 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3660 if (sig->ret->type != MONO_TYPE_VOID)
3661 mono_mb_emit_byte (mb, CEE_POP);
3663 /* continued or prev == null */
3664 mono_mb_patch_branch (mb, pos0);
3666 /* get this->target */
3667 mono_mb_emit_ldarg (mb, 0);
3668 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
3669 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3670 mono_mb_emit_stloc (mb, local_target);
3672 /* if target != null */
3673 mono_mb_emit_ldloc (mb, local_target);
3674 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3676 /* then call this->method_ptr nonstatic */
3679 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3681 mono_mb_emit_ldloc (mb, local_target);
3682 for (i = 0; i < sig->param_count; ++i)
3683 mono_mb_emit_ldarg (mb, i + 1);
3684 mono_mb_emit_ldarg (mb, 0);
3685 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3686 mono_mb_emit_byte (mb, CEE_LDIND_I );
3687 mono_mb_emit_op (mb, CEE_CALLI, sig);
3689 mono_mb_emit_byte (mb, CEE_RET);
3692 /* else [target == null] call this->method_ptr static */
3693 mono_mb_patch_branch (mb, pos0);
3696 mono_mb_emit_ldarg (mb, 1);
3697 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3698 for (i = 1; i < sig->param_count; ++i)
3699 mono_mb_emit_ldarg (mb, i + 1);
3700 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3702 for (i = 0; i < sig->param_count; ++i)
3703 mono_mb_emit_ldarg (mb, i + 1);
3704 mono_mb_emit_ldarg (mb, 0);
3705 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
3706 mono_mb_emit_byte (mb, CEE_LDIND_I );
3707 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
3710 mono_mb_emit_byte (mb, CEE_RET);
3713 // From mono_mb_create_and_cache
3714 mb->skip_visibility = 1;
3715 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
3716 /*We perform double checked locking, so must fence before publishing*/
3717 mono_memory_barrier ();
3718 mono_marshal_lock ();
3719 res = g_hash_table_lookup (cache, &key);
3722 new_key = g_new0 (SignatureMethodPair, 1);
3724 new_key->method = target_method;
3725 g_hash_table_insert (cache, new_key, res);
3726 mono_marshal_method_set_wrapper_data (res, new_key);
3727 mono_marshal_unlock ();
3729 mono_marshal_unlock ();
3730 mono_free_method (newm);
3733 mb->skip_visibility = 1;
3734 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3742 * signature_dup_add_this:
3744 * Make a copy of @sig, adding an explicit this argument.
3746 static MonoMethodSignature*
3747 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
3749 MonoMethodSignature *res;
3752 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
3753 memcpy (res, sig, sizeof (MonoMethodSignature));
3754 res->param_count = sig->param_count + 1;
3755 res->hasthis = FALSE;
3756 for (i = sig->param_count - 1; i >= 0; i --)
3757 res->params [i + 1] = sig->params [i];
3758 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
3764 MonoMethodSignature *ctor_sig;
3765 MonoMethodSignature *sig;
3768 /* protected by the marshal lock, contains CtorSigPair pointers */
3769 static GSList *strsig_list = NULL;
3771 static MonoMethodSignature *
3772 lookup_string_ctor_signature (MonoMethodSignature *sig)
3774 MonoMethodSignature *callsig;
3778 mono_marshal_lock ();
3780 for (item = strsig_list; item; item = item->next) {
3782 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3783 * because it is lock-free.
3785 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3790 mono_marshal_unlock ();
3794 static MonoMethodSignature *
3795 add_string_ctor_signature (MonoMethod *method)
3797 MonoMethodSignature *callsig;
3800 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3801 callsig->ret = &mono_defaults.string_class->byval_arg;
3802 cs = g_new (CtorSigPair, 1);
3804 cs->ctor_sig = mono_method_signature (method);
3806 mono_marshal_lock ();
3807 strsig_list = g_slist_prepend (strsig_list, cs);
3808 mono_marshal_unlock ();
3813 get_runtime_invoke_type (MonoType *t, gboolean ret)
3816 return &mono_defaults.int_class->byval_arg;
3821 return &mono_defaults.sbyte_class->byval_arg;
3823 return &mono_defaults.int16_class->byval_arg;
3825 return &mono_defaults.int32_class->byval_arg;
3827 return &mono_defaults.int64_class->byval_arg;
3828 case MONO_TYPE_BOOLEAN:
3829 return &mono_defaults.sbyte_class->byval_arg;
3830 case MONO_TYPE_CHAR:
3831 return &mono_defaults.int16_class->byval_arg;
3834 return &mono_defaults.int_class->byval_arg;
3835 case MONO_TYPE_VALUETYPE:
3836 if (t->data.klass->enumtype && !ret) {
3837 t = mono_class_enum_basetype (t->data.klass);
3842 if (MONO_TYPE_IS_REFERENCE (t))
3843 return &mono_defaults.object_class->byval_arg;
3849 * mono_marshal_get_runtime_invoke_sig:
3851 * Return a common signature used for sharing runtime invoke wrappers.
3853 static MonoMethodSignature*
3854 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3856 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3859 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3860 for (i = 0; i < res->param_count; ++i)
3861 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3867 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3869 /* Can't share wrappers which return a vtype since it needs to be boxed */
3870 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)))
3873 return mono_metadata_signature_equal (sig1, sig2);
3877 * generates IL code for the runtime invoke function
3878 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
3880 * we also catch exceptions if exc != null
3881 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3882 * it means that the compiled code for METHOD does not have to be looked up
3883 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3884 * its METHOD argument.
3887 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual)
3889 MonoMethodSignature *sig, *csig, *callsig;
3890 MonoExceptionClause *clause;
3891 MonoMethodBuilder *mb;
3892 GHashTable *cache = NULL;
3893 MonoClass *target_klass;
3894 MonoMethod *res = NULL;
3895 static MonoString *string_dummy = NULL;
3896 static MonoMethodSignature *cctor_signature = NULL;
3897 static MonoMethodSignature *finalize_signature = NULL;
3900 gboolean need_direct_wrapper = FALSE;
3901 int *tmp_nullable_locals;
3905 if (!cctor_signature) {
3906 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3907 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3909 if (!finalize_signature) {
3910 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3911 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3912 finalize_signature->hasthis = 1;
3916 need_direct_wrapper = TRUE;
3919 * Use a separate cache indexed by methods to speed things up and to avoid the
3920 * boundless mempool growth caused by the signature_dup stuff below.
3923 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3925 cache = get_cache (&method->klass->image->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3926 res = mono_marshal_find_in_cache (cache, method);
3930 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3931 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3933 * Array Get/Set/Address methods. The JIT implements them using inline code
3934 * so we need to create an invoke wrapper which calls the method directly.
3936 need_direct_wrapper = TRUE;
3939 if (method->string_ctor) {
3940 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3942 callsig = add_string_ctor_signature (method);
3943 /* Can't share this as we push a string as this */
3944 need_direct_wrapper = TRUE;
3946 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
3948 * Valuetype methods receive a managed pointer as the this argument.
3949 * Create a new signature to reflect this.
3951 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
3953 if (method->dynamic)
3954 callsig = signature_dup (method->klass->image, mono_method_signature (method));
3956 callsig = mono_method_signature (method);
3960 /* Vtypes/nullables/Byrefs cause too many problems */
3961 for (i = 0; i < callsig->param_count; ++i) {
3962 if (MONO_TYPE_ISSTRUCT (callsig->params [i]) || callsig->params [i]->byref)
3963 need_direct_wrapper = TRUE;
3967 * We try to share runtime invoke wrappers between different methods but have to
3968 * be careful about methods whose klass has a type cctor, since putting the wrapper
3969 * into that klass would mean that calling a method of klass A might invoke the
3970 * type initializer of class B, or throw an exception if the type initializer
3971 * was called before and failed. See #349621 for an example.
3972 * We avoid that for mscorlib methods by putting every wrapper into the object class.
3974 if (method->klass->image == mono_defaults.corlib)
3975 target_klass = mono_defaults.object_class;
3977 /* Try to share wrappers for non-corlib methods with simple signatures */
3978 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3979 callsig = cctor_signature;
3980 target_klass = mono_defaults.object_class;
3981 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3982 callsig = finalize_signature;
3983 target_klass = mono_defaults.object_class;
3985 // FIXME: This breaks too many things
3987 if (mono_class_get_cctor (method->klass))
3988 need_direct_wrapper = TRUE;
3992 * Can't put these wrappers into object, since they reference non-corlib
3993 * metadata (callsig).
3995 target_klass = method->klass;
3999 if (need_direct_wrapper) {
4000 /* Already searched at the start */
4002 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4004 cache = get_cache (&target_klass->image->runtime_invoke_cache,
4005 (GHashFunc)mono_signature_hash,
4006 (GCompareFunc)runtime_invoke_signature_equal);
4008 /* from mono_marshal_find_in_cache */
4009 mono_marshal_lock ();
4010 res = g_hash_table_lookup (cache, callsig);
4011 mono_marshal_unlock ();
4018 // FIXME: When to free callsig ?
4021 /* to make it work with our special string constructors */
4022 if (!string_dummy) {
4023 MONO_GC_REGISTER_ROOT (string_dummy);
4024 string_dummy = mono_string_new_wrapper ("dummy");
4027 sig = mono_method_signature (method);
4029 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4031 csig->ret = &mono_defaults.object_class->byval_arg;
4032 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4033 csig->params [0] = callsig->params [0];
4035 csig->params [0] = &mono_defaults.object_class->byval_arg;
4036 csig->params [1] = &mono_defaults.int_class->byval_arg;
4037 csig->params [2] = &mono_defaults.int_class->byval_arg;
4038 csig->params [3] = &mono_defaults.int_class->byval_arg;
4040 name = mono_signature_to_name (callsig, virtual ? "runtime_invoke_virtual" : "runtime_invoke");
4041 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4044 /* allocate local 0 (object) tmp */
4045 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4046 /* allocate local 1 (object) exc */
4047 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4049 /* cond set *exc to null */
4050 mono_mb_emit_byte (mb, CEE_LDARG_2);
4051 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4052 mono_mb_emit_byte (mb, 3);
4053 mono_mb_emit_byte (mb, CEE_LDARG_2);
4054 mono_mb_emit_byte (mb, CEE_LDNULL);
4055 mono_mb_emit_byte (mb, CEE_STIND_REF);
4057 emit_thread_force_interrupt_checkpoint (mb);
4060 g_assert (sig->hasthis);
4061 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4065 if (method->string_ctor) {
4066 mono_mb_emit_ptr (mb, string_dummy);
4068 mono_mb_emit_ldarg (mb, 0);
4072 tmp_nullable_locals = g_new0 (int, sig->param_count);
4074 for (i = 0; i < sig->param_count; i++) {
4075 MonoType *t = sig->params [i];
4078 mono_mb_emit_ldarg (mb, 1);
4080 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4081 mono_mb_emit_byte (mb, CEE_ADD);
4085 mono_mb_emit_byte (mb, CEE_LDIND_I);
4086 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4087 * So to make this work we unbox it to a local variablee and push a reference to that.
4089 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4090 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4092 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4093 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4094 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4099 type = sig->params [i]->type;
4103 case MONO_TYPE_BOOLEAN:
4107 case MONO_TYPE_CHAR:
4116 mono_mb_emit_byte (mb, CEE_LDIND_I);
4117 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4119 case MONO_TYPE_STRING:
4120 case MONO_TYPE_CLASS:
4121 case MONO_TYPE_ARRAY:
4123 case MONO_TYPE_SZARRAY:
4124 case MONO_TYPE_OBJECT:
4125 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4127 case MONO_TYPE_GENERICINST:
4128 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4129 mono_mb_emit_byte (mb, CEE_LDIND_I);
4134 case MONO_TYPE_VALUETYPE:
4135 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4136 type = mono_class_enum_basetype (t->data.klass)->type;
4139 mono_mb_emit_byte (mb, CEE_LDIND_I);
4140 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4141 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4142 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4143 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4145 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4149 g_assert_not_reached ();
4154 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4155 } else if (need_direct_wrapper) {
4156 mono_mb_emit_op (mb, CEE_CALL, method);
4158 mono_mb_emit_ldarg (mb, 3);
4159 mono_mb_emit_calli (mb, callsig);
4162 if (sig->ret->byref) {
4164 g_assert_not_reached ();
4168 switch (sig->ret->type) {
4169 case MONO_TYPE_VOID:
4170 if (!method->string_ctor)
4171 mono_mb_emit_byte (mb, CEE_LDNULL);
4173 case MONO_TYPE_BOOLEAN:
4174 case MONO_TYPE_CHAR:
4187 case MONO_TYPE_VALUETYPE:
4188 case MONO_TYPE_TYPEDBYREF:
4189 case MONO_TYPE_GENERICINST:
4190 /* box value types */
4191 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4193 case MONO_TYPE_STRING:
4194 case MONO_TYPE_CLASS:
4195 case MONO_TYPE_ARRAY:
4196 case MONO_TYPE_SZARRAY:
4197 case MONO_TYPE_OBJECT:
4202 g_assert_not_reached ();
4205 mono_mb_emit_stloc (mb, 0);
4207 /* Convert back nullable-byref arguments */
4208 for (i = 0; i < sig->param_count; i++) {
4209 MonoType *t = sig->params [i];
4212 * Box the result and put it back into the array, the caller will have
4213 * to obtain it from there.
4215 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4216 mono_mb_emit_ldarg (mb, 1);
4217 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4218 mono_mb_emit_byte (mb, CEE_ADD);
4220 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4221 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4223 mono_mb_emit_byte (mb, CEE_STIND_REF);
4227 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4229 clause = mono_image_alloc0 (target_klass->image, sizeof (MonoExceptionClause));
4230 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4231 clause->try_len = mono_mb_get_label (mb);
4234 clause->data.filter_offset = mono_mb_get_label (mb);
4236 mono_mb_emit_byte (mb, CEE_POP);
4237 mono_mb_emit_byte (mb, CEE_LDARG_2);
4238 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4239 mono_mb_emit_byte (mb, CEE_PREFIX1);
4240 mono_mb_emit_byte (mb, CEE_CGT_UN);
4241 mono_mb_emit_byte (mb, CEE_PREFIX1);
4242 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4244 clause->handler_offset = mono_mb_get_label (mb);
4247 /* store exception */
4248 mono_mb_emit_stloc (mb, 1);
4250 mono_mb_emit_byte (mb, CEE_LDARG_2);
4251 mono_mb_emit_ldloc (mb, 1);
4252 mono_mb_emit_byte (mb, CEE_STIND_REF);
4254 mono_mb_emit_byte (mb, CEE_LDNULL);
4255 mono_mb_emit_stloc (mb, 0);
4257 /* Check for the abort exception */
4258 mono_mb_emit_ldloc (mb, 1);
4259 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4260 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4262 /* Delay the abort exception */
4263 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4265 mono_mb_patch_short_branch (mb, posna);
4266 mono_mb_emit_branch (mb, CEE_LEAVE);
4268 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4270 mono_mb_set_clauses (mb, 1, clause);
4273 mono_mb_patch_branch (mb, pos);
4274 mono_mb_emit_ldloc (mb, 0);
4275 mono_mb_emit_byte (mb, CEE_RET);
4277 if (need_direct_wrapper) {
4278 mb->skip_visibility = 1;
4279 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4281 /* taken from mono_mb_create_and_cache */
4282 mono_marshal_lock ();
4283 res = g_hash_table_lookup (cache, callsig);
4284 mono_marshal_unlock ();
4286 /* Somebody may have created it before us */
4289 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4291 mono_marshal_lock ();
4292 res = g_hash_table_lookup (cache, callsig);
4295 g_hash_table_insert (cache, callsig, res);
4296 /* Can't insert it into wrapper_hash since the key is a signature */
4297 g_hash_table_insert (method->klass->image->runtime_invoke_direct_cache, method, res);
4299 mono_free_method (newm);
4301 mono_marshal_unlock ();
4304 /* end mono_mb_create_and_cache */
4313 * mono_marshal_get_static_rgctx_invoke:
4316 * Generates a wrapper for calling a generic shared method, either
4317 * static or generic. We need this for virtual generic method lookup
4318 * and ldftn when we do generic code sharing. Instead of producing
4319 * the address of the method we produce the address of a wrapper for
4320 * the method because the wrapper passes the (method) runtime generic
4321 * context argument which calli cannot do.
4324 mono_marshal_get_static_rgctx_invoke (MonoMethod *method)
4326 static gboolean inited = FALSE;
4327 static int num_wrappers = 0;
4329 MonoMethodBuilder *mb;
4331 MonoClass *target_klass = method->klass;
4332 MonoMethodSignature *sig = mono_method_signature (method);
4336 MonoImage *image = method->klass->image;
4338 cache = get_cache (&image->static_rgctx_invoke_cache, mono_aligned_addr_hash, NULL);
4339 if ((res = mono_marshal_find_in_cache (cache, method)))
4343 mono_counters_register ("Static rgctx invoke wrappers",
4344 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_wrappers);
4349 name = mono_signature_to_name (mono_method_signature (method), "static_rgctx_invoke");
4350 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_STATIC_RGCTX_INVOKE);
4353 for (i = 0; i < sig->param_count + sig->hasthis; i++)
4354 mono_mb_emit_ldarg (mb, i);
4355 mono_mb_emit_op (mb, CEE_CALL, method);
4356 mono_mb_emit_byte (mb, CEE_RET);
4358 mb->skip_visibility = TRUE;
4359 res = mono_mb_create_and_cache (cache, method, mb, mono_method_signature (method),
4360 sig->param_count + sig->hasthis + 4);
4361 res->flags = method->flags;
4369 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4371 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4372 klass->name_space, klass->name);
4374 mono_mb_emit_exception_marshal_directive (mb, msg);
4378 * mono_marshal_get_ldfld_remote_wrapper:
4379 * @klass: The return type
4381 * This method generates a wrapper for calling mono_load_remote_field_new.
4382 * The return type is ignored for now, as mono_load_remote_field_new () always
4383 * returns an object. In the future, to optimize some codepaths, we might
4384 * call a different function that takes a pointer to a valuetype, instead.
4387 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4389 MonoMethodSignature *sig, *csig;
4390 MonoMethodBuilder *mb;
4392 static MonoMethod* cached = NULL;
4394 mono_marshal_lock ();
4396 mono_marshal_unlock ();
4399 mono_marshal_unlock ();
4401 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
4403 mb->method->save_lmf = 1;
4405 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4406 sig->params [0] = &mono_defaults.object_class->byval_arg;
4407 sig->params [1] = &mono_defaults.int_class->byval_arg;
4408 sig->params [2] = &mono_defaults.int_class->byval_arg;
4409 sig->ret = &mono_defaults.object_class->byval_arg;
4411 mono_mb_emit_ldarg (mb, 0);
4412 mono_mb_emit_ldarg (mb, 1);
4413 mono_mb_emit_ldarg (mb, 2);
4415 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4416 csig->params [0] = &mono_defaults.object_class->byval_arg;
4417 csig->params [1] = &mono_defaults.int_class->byval_arg;
4418 csig->params [2] = &mono_defaults.int_class->byval_arg;
4419 csig->ret = &mono_defaults.object_class->byval_arg;
4422 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4423 emit_thread_interrupt_checkpoint (mb);
4425 mono_mb_emit_byte (mb, CEE_RET);
4427 mono_marshal_lock ();
4429 mono_marshal_unlock ();
4432 newm = mono_mb_create_method (mb, sig, 4);
4433 mono_marshal_lock ();
4438 mono_marshal_unlock ();
4440 mono_marshal_unlock ();
4441 mono_free_method (newm);
4450 * mono_marshal_get_ldfld_wrapper:
4451 * @type: the type of the field
4453 * This method generates a function which can be use to load a field with type
4454 * @type from an object. The generated function has the following signature:
4455 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4458 mono_marshal_get_ldfld_wrapper (MonoType *type)
4460 MonoMethodSignature *sig;
4461 MonoMethodBuilder *mb;
4466 int t, pos0, pos1 = 0;
4468 type = mono_type_get_underlying_type (type);
4473 if (type->type == MONO_TYPE_SZARRAY) {
4474 klass = mono_defaults.array_class;
4475 } else if (type->type == MONO_TYPE_VALUETYPE) {
4476 klass = type->data.klass;
4477 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4478 klass = mono_defaults.object_class;
4479 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4480 klass = mono_defaults.int_class;
4481 } else if (t == MONO_TYPE_GENERICINST) {
4482 if (mono_type_generic_inst_is_valuetype (type))
4483 klass = mono_class_from_mono_type (type);
4485 klass = mono_defaults.object_class;
4487 klass = mono_class_from_mono_type (type);
4490 klass = mono_defaults.int_class;
4493 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4494 if ((res = mono_marshal_find_in_cache (cache, klass)))
4497 /* we add the %p pointer value of klass because class names are not unique */
4498 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4499 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4502 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4503 sig->params [0] = &mono_defaults.object_class->byval_arg;
4504 sig->params [1] = &mono_defaults.int_class->byval_arg;
4505 sig->params [2] = &mono_defaults.int_class->byval_arg;
4506 sig->params [3] = &mono_defaults.int_class->byval_arg;
4507 sig->ret = &klass->byval_arg;
4509 mono_mb_emit_ldarg (mb, 0);
4510 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4512 mono_mb_emit_ldarg (mb, 0);
4513 mono_mb_emit_ldarg (mb, 1);
4514 mono_mb_emit_ldarg (mb, 2);
4516 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4519 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4520 csig->params [0] = &mono_defaults.object_class->byval_arg;
4521 csig->params [1] = &mono_defaults.int_class->byval_arg;
4522 csig->params [2] = &mono_defaults.int_class->byval_arg;
4523 csig->ret = &klass->this_arg;
4526 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4527 emit_thread_interrupt_checkpoint (mb);
4530 if (klass->valuetype) {
4531 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4532 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4534 mono_mb_emit_byte (mb, CEE_RET);
4538 mono_mb_patch_branch (mb, pos0);
4540 mono_mb_emit_ldarg (mb, 0);
4541 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4542 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4543 mono_mb_emit_ldarg (mb, 3);
4544 mono_mb_emit_byte (mb, CEE_ADD);
4546 if (klass->valuetype)
4547 mono_mb_patch_branch (mb, pos1);
4552 case MONO_TYPE_BOOLEAN:
4553 case MONO_TYPE_CHAR:
4562 case MONO_TYPE_ARRAY:
4563 case MONO_TYPE_SZARRAY:
4564 case MONO_TYPE_OBJECT:
4565 case MONO_TYPE_CLASS:
4566 case MONO_TYPE_STRING:
4570 case MONO_TYPE_FNPTR:
4571 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
4573 case MONO_TYPE_VALUETYPE:
4574 g_assert (!klass->enumtype);
4575 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4577 case MONO_TYPE_GENERICINST:
4578 if (mono_type_generic_inst_is_valuetype (type)) {
4579 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
4581 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4585 g_warning ("type %x not implemented", type->type);
4586 g_assert_not_reached ();
4589 mono_mb_emit_byte (mb, CEE_RET);
4591 res = mono_mb_create_and_cache (cache, klass,
4592 mb, sig, sig->param_count + 16);
4599 * mono_marshal_get_ldflda_wrapper:
4600 * @type: the type of the field
4602 * This method generates a function which can be used to load a field address
4603 * from an object. The generated function has the following signature:
4604 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
4607 mono_marshal_get_ldflda_wrapper (MonoType *type)
4609 MonoMethodSignature *sig;
4610 MonoMethodBuilder *mb;
4615 int t, pos0, pos1, pos2, pos3;
4617 type = mono_type_get_underlying_type (type);
4621 if (type->type == MONO_TYPE_SZARRAY) {
4622 klass = mono_defaults.array_class;
4623 } else if (type->type == MONO_TYPE_VALUETYPE) {
4624 klass = type->data.klass;
4625 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
4626 t == MONO_TYPE_CLASS) {
4627 klass = mono_defaults.object_class;
4628 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4629 klass = mono_defaults.int_class;
4630 } else if (t == MONO_TYPE_GENERICINST) {
4631 if (mono_type_generic_inst_is_valuetype (type))
4632 klass = mono_class_from_mono_type (type);
4634 klass = mono_defaults.object_class;
4636 klass = mono_class_from_mono_type (type);
4639 klass = mono_defaults.int_class;
4642 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
4643 if ((res = mono_marshal_find_in_cache (cache, klass)))
4646 /* we add the %p pointer value of klass because class names are not unique */
4647 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4648 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
4651 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4652 sig->params [0] = &mono_defaults.object_class->byval_arg;
4653 sig->params [1] = &mono_defaults.int_class->byval_arg;
4654 sig->params [2] = &mono_defaults.int_class->byval_arg;
4655 sig->params [3] = &mono_defaults.int_class->byval_arg;
4656 sig->ret = &mono_defaults.int_class->byval_arg;
4658 /* if typeof (this) != transparent_proxy goto pos0 */
4659 mono_mb_emit_ldarg (mb, 0);
4660 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4662 /* if same_appdomain goto pos1 */
4663 mono_mb_emit_ldarg (mb, 0);
4664 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4666 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
4668 /* same app domain */
4669 mono_mb_patch_branch (mb, pos1);
4671 /* if typeof (this) != contextbound goto pos2 */
4672 mono_mb_emit_ldarg (mb, 0);
4673 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
4675 /* if this->rp->context == mono_context_get goto pos3 */
4676 mono_mb_emit_ldarg (mb, 0);
4677 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4678 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4679 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, context));
4680 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4681 mono_mb_emit_icall (mb, mono_context_get);
4682 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
4684 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
4686 mono_mb_patch_branch (mb, pos2);
4687 mono_mb_patch_branch (mb, pos3);
4689 /* return the address of the field from this->rp->unwrapped_server */
4690 mono_mb_emit_ldarg (mb, 0);
4691 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
4692 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4693 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
4694 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4695 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4696 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4697 mono_mb_emit_ldarg (mb, 3);
4698 mono_mb_emit_byte (mb, CEE_ADD);
4699 mono_mb_emit_byte (mb, CEE_RET);
4701 /* not a proxy: return the address of the field directly */
4702 mono_mb_patch_branch (mb, pos0);
4704 mono_mb_emit_ldarg (mb, 0);
4705 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4706 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4707 mono_mb_emit_ldarg (mb, 3);
4708 mono_mb_emit_byte (mb, CEE_ADD);
4710 mono_mb_emit_byte (mb, CEE_RET);
4712 res = mono_mb_create_and_cache (cache, klass,
4713 mb, sig, sig->param_count + 16);
4720 * mono_marshal_get_stfld_remote_wrapper:
4721 * klass: The type of the field
4723 * This function generates a wrapper for calling mono_store_remote_field_new
4724 * with the appropriate signature.
4725 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
4726 * klass argument anymore.
4729 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
4731 MonoMethodSignature *sig, *csig;
4732 MonoMethodBuilder *mb;
4734 static MonoMethod *cached = NULL;
4736 mono_marshal_lock ();
4738 mono_marshal_unlock ();
4741 mono_marshal_unlock ();
4743 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
4745 mb->method->save_lmf = 1;
4747 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4748 sig->params [0] = &mono_defaults.object_class->byval_arg;
4749 sig->params [1] = &mono_defaults.int_class->byval_arg;
4750 sig->params [2] = &mono_defaults.int_class->byval_arg;
4751 sig->params [3] = &mono_defaults.object_class->byval_arg;
4752 sig->ret = &mono_defaults.void_class->byval_arg;
4754 mono_mb_emit_ldarg (mb, 0);
4755 mono_mb_emit_ldarg (mb, 1);
4756 mono_mb_emit_ldarg (mb, 2);
4757 mono_mb_emit_ldarg (mb, 3);
4759 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4760 csig->params [0] = &mono_defaults.object_class->byval_arg;
4761 csig->params [1] = &mono_defaults.int_class->byval_arg;
4762 csig->params [2] = &mono_defaults.int_class->byval_arg;
4763 csig->params [3] = &mono_defaults.object_class->byval_arg;
4764 csig->ret = &mono_defaults.void_class->byval_arg;
4767 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
4768 emit_thread_interrupt_checkpoint (mb);
4770 mono_mb_emit_byte (mb, CEE_RET);
4772 mono_marshal_lock ();
4774 mono_marshal_unlock ();
4777 newm = mono_mb_create_method (mb, sig, 6);
4778 mono_marshal_lock ();
4783 mono_marshal_unlock ();
4785 mono_marshal_unlock ();
4786 mono_free_method (newm);
4795 * mono_marshal_get_stfld_wrapper:
4796 * @type: the type of the field
4798 * This method generates a function which can be use to store a field with type
4799 * @type. The generated function has the following signature:
4800 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
4803 mono_marshal_get_stfld_wrapper (MonoType *type)
4805 MonoMethodSignature *sig;
4806 MonoMethodBuilder *mb;
4813 type = mono_type_get_underlying_type (type);
4817 if (type->type == MONO_TYPE_SZARRAY) {
4818 klass = mono_defaults.array_class;
4819 } else if (type->type == MONO_TYPE_VALUETYPE) {
4820 klass = type->data.klass;
4821 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4822 klass = mono_defaults.object_class;
4823 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4824 klass = mono_defaults.int_class;
4825 } else if (t == MONO_TYPE_GENERICINST) {
4826 if (mono_type_generic_inst_is_valuetype (type))
4827 klass = mono_class_from_mono_type (type);
4829 klass = mono_defaults.object_class;
4831 klass = mono_class_from_mono_type (type);
4834 klass = mono_defaults.int_class;
4837 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
4838 if ((res = mono_marshal_find_in_cache (cache, klass)))
4841 /* we add the %p pointer value of klass because class names are not unique */
4842 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4843 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
4846 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
4847 sig->params [0] = &mono_defaults.object_class->byval_arg;
4848 sig->params [1] = &mono_defaults.int_class->byval_arg;
4849 sig->params [2] = &mono_defaults.int_class->byval_arg;
4850 sig->params [3] = &mono_defaults.int_class->byval_arg;
4851 sig->params [4] = &klass->byval_arg;
4852 sig->ret = &mono_defaults.void_class->byval_arg;
4854 mono_mb_emit_ldarg (mb, 0);
4855 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4857 mono_mb_emit_ldarg (mb, 0);
4858 mono_mb_emit_ldarg (mb, 1);
4859 mono_mb_emit_ldarg (mb, 2);
4860 mono_mb_emit_ldarg (mb, 4);
4861 if (klass->valuetype)
4862 mono_mb_emit_op (mb, CEE_BOX, klass);
4864 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
4866 mono_mb_emit_byte (mb, CEE_RET);
4868 mono_mb_patch_branch (mb, pos);
4870 mono_mb_emit_ldarg (mb, 0);
4871 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4872 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4873 mono_mb_emit_ldarg (mb, 3);
4874 mono_mb_emit_byte (mb, CEE_ADD);
4875 mono_mb_emit_ldarg (mb, 4);
4880 case MONO_TYPE_BOOLEAN:
4881 case MONO_TYPE_CHAR:
4890 case MONO_TYPE_ARRAY:
4891 case MONO_TYPE_SZARRAY:
4892 case MONO_TYPE_OBJECT:
4893 case MONO_TYPE_CLASS:
4894 case MONO_TYPE_STRING:
4898 case MONO_TYPE_FNPTR:
4899 mono_mb_emit_byte (mb, mono_type_to_stind (type));
4901 case MONO_TYPE_VALUETYPE:
4902 g_assert (!klass->enumtype);
4903 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4905 case MONO_TYPE_GENERICINST:
4906 mono_mb_emit_op (mb, CEE_STOBJ, klass);
4909 g_warning ("type %x not implemented", type->type);
4910 g_assert_not_reached ();
4913 mono_mb_emit_byte (mb, CEE_RET);
4915 res = mono_mb_create_and_cache (cache, klass,
4916 mb, sig, sig->param_count + 16);
4923 * generates IL code for the icall wrapper (the generated method
4924 * calls the unmanaged code in func)
4927 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4929 MonoMethodSignature *csig;
4930 MonoMethodBuilder *mb;
4934 g_assert (sig->pinvoke);
4936 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4938 mb->method->save_lmf = 1;
4940 /* we copy the signature, so that we can modify it */
4943 mono_mb_emit_byte (mb, CEE_LDARG_0);
4945 for (i = 0; i < sig->param_count; i++)
4946 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4948 mono_mb_emit_native_call (mb, sig, (gpointer) func);
4949 if (check_exceptions)
4950 emit_thread_interrupt_checkpoint (mb);
4951 mono_mb_emit_byte (mb, CEE_RET);
4953 csig = signature_dup (mono_defaults.corlib, sig);
4955 if (csig->call_convention == MONO_CALL_VARARG)
4956 csig->call_convention = 0;
4958 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
4965 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4966 MonoMarshalSpec *spec,
4967 int conv_arg, MonoType **conv_arg_type,
4968 MarshalAction action)
4972 static MonoClass *ICustomMarshaler = NULL;
4973 static MonoMethod *cleanup_native, *cleanup_managed;
4974 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4975 MonoMethod *get_instance;
4976 MonoMethodBuilder *mb = m->mb;
4977 char *exception_msg = NULL;
4981 if (!ICustomMarshaler) {
4982 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4983 g_assert (ICustomMarshaler);
4985 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
4986 g_assert (cleanup_native);
4987 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
4988 g_assert (cleanup_managed);
4989 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
4990 g_assert (marshal_managed_to_native);
4991 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
4992 g_assert (marshal_native_to_managed);
4995 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4996 g_assert (mtype != NULL);
4997 mklass = mono_class_from_mono_type (mtype);
4998 g_assert (mklass != NULL);
5000 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5001 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5003 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5005 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5006 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5007 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5008 (get_sig->params [0]->type != MONO_TYPE_STRING))
5009 get_instance = NULL;
5013 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);
5015 /* Throw exception and emit compensation code if neccesary */
5016 if (exception_msg) {
5018 case MARSHAL_ACTION_CONV_IN:
5019 case MARSHAL_ACTION_CONV_RESULT:
5020 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5021 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5022 mono_mb_emit_byte (mb, CEE_POP);
5024 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5025 g_free (exception_msg);
5028 case MARSHAL_ACTION_PUSH:
5029 mono_mb_emit_byte (mb, CEE_LDNULL);
5037 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5038 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5041 case MARSHAL_ACTION_CONV_IN:
5043 case MONO_TYPE_CLASS:
5044 case MONO_TYPE_OBJECT:
5045 case MONO_TYPE_STRING:
5046 case MONO_TYPE_ARRAY:
5047 case MONO_TYPE_SZARRAY:
5048 case MONO_TYPE_VALUETYPE:
5052 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5053 g_assert_not_reached ();
5057 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5059 mono_mb_emit_byte (mb, CEE_LDNULL);
5060 mono_mb_emit_stloc (mb, conv_arg);
5062 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5065 /* Minic MS.NET behavior */
5066 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5069 /* Check for null */
5070 mono_mb_emit_ldarg (mb, argnum);
5072 mono_mb_emit_byte (mb, CEE_LDIND_I);
5073 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5075 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5077 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5079 mono_mb_emit_ldarg (mb, argnum);
5081 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5083 if (t->type == MONO_TYPE_VALUETYPE) {
5085 * Since we can't determine the type of the argument, we
5086 * will assume the unmanaged function takes a pointer.
5088 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5090 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5093 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5094 mono_mb_emit_stloc (mb, conv_arg);
5096 mono_mb_patch_branch (mb, pos2);
5099 case MARSHAL_ACTION_CONV_OUT:
5100 /* Check for null */
5101 mono_mb_emit_ldloc (mb, conv_arg);
5102 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5105 mono_mb_emit_ldarg (mb, argnum);
5107 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5109 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5111 mono_mb_emit_ldloc (mb, conv_arg);
5112 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5113 mono_mb_emit_byte (mb, CEE_STIND_REF);
5114 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5115 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5117 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5119 mono_mb_emit_ldloc (mb, conv_arg);
5120 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5122 /* We have nowhere to store the result */
5123 mono_mb_emit_byte (mb, CEE_POP);
5126 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5128 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5130 mono_mb_emit_ldloc (mb, conv_arg);
5132 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5134 mono_mb_patch_branch (mb, pos2);
5137 case MARSHAL_ACTION_PUSH:
5139 mono_mb_emit_ldloc_addr (mb, conv_arg);
5141 mono_mb_emit_ldloc (mb, conv_arg);
5144 case MARSHAL_ACTION_CONV_RESULT:
5145 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5147 mono_mb_emit_stloc (mb, 3);
5149 mono_mb_emit_ldloc (mb, 3);
5150 mono_mb_emit_stloc (mb, loc1);
5152 /* Check for null */
5153 mono_mb_emit_ldloc (mb, 3);
5154 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5156 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5158 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5159 mono_mb_emit_byte (mb, CEE_DUP);
5161 mono_mb_emit_ldloc (mb, 3);
5162 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5163 mono_mb_emit_stloc (mb, 3);
5165 mono_mb_emit_ldloc (mb, loc1);
5166 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5168 mono_mb_patch_branch (mb, pos2);
5171 case MARSHAL_ACTION_MANAGED_CONV_IN:
5172 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5174 mono_mb_emit_byte (mb, CEE_LDNULL);
5175 mono_mb_emit_stloc (mb, conv_arg);
5177 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5180 /* Check for null */
5181 mono_mb_emit_ldarg (mb, argnum);
5183 mono_mb_emit_byte (mb, CEE_LDIND_I);
5184 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5186 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5187 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5189 mono_mb_emit_ldarg (mb, argnum);
5191 mono_mb_emit_byte (mb, CEE_LDIND_I);
5193 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5194 mono_mb_emit_stloc (mb, conv_arg);
5196 mono_mb_patch_branch (mb, pos2);
5199 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5200 g_assert (!t->byref);
5202 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5204 mono_mb_emit_stloc (mb, 3);
5206 mono_mb_emit_ldloc (mb, 3);
5207 mono_mb_emit_stloc (mb, loc1);
5209 /* Check for null */
5210 mono_mb_emit_ldloc (mb, 3);
5211 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5213 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5214 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5215 mono_mb_emit_byte (mb, CEE_DUP);
5217 mono_mb_emit_ldloc (mb, 3);
5218 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5219 mono_mb_emit_stloc (mb, 3);
5221 mono_mb_emit_ldloc (mb, loc1);
5222 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5224 mono_mb_patch_branch (mb, pos2);
5227 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5229 /* Check for null */
5230 mono_mb_emit_ldloc (mb, conv_arg);
5231 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5234 mono_mb_emit_ldarg (mb, argnum);
5236 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5238 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5240 mono_mb_emit_ldloc (mb, conv_arg);
5241 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5242 mono_mb_emit_byte (mb, CEE_STIND_I);
5245 /* Call CleanUpManagedData */
5246 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5248 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5250 mono_mb_emit_ldloc (mb, conv_arg);
5251 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5253 mono_mb_patch_branch (mb, pos2);
5257 g_assert_not_reached ();
5264 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5265 MonoMarshalSpec *spec,
5266 int conv_arg, MonoType **conv_arg_type,
5267 MarshalAction action)
5269 MonoMethodBuilder *mb = m->mb;
5272 case MARSHAL_ACTION_CONV_IN: {
5273 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5275 g_assert (t->type == MONO_TYPE_OBJECT);
5276 g_assert (!t->byref);
5278 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5279 mono_mb_emit_ldarg (mb, argnum);
5280 mono_mb_emit_icon (mb, encoding);
5281 mono_mb_emit_icon (mb, t->attrs);
5282 mono_mb_emit_icall (mb, mono_marshal_asany);
5283 mono_mb_emit_stloc (mb, conv_arg);
5287 case MARSHAL_ACTION_PUSH:
5288 mono_mb_emit_ldloc (mb, conv_arg);
5291 case MARSHAL_ACTION_CONV_OUT: {
5292 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5294 mono_mb_emit_ldarg (mb, argnum);
5295 mono_mb_emit_ldloc (mb, conv_arg);
5296 mono_mb_emit_icon (mb, encoding);
5297 mono_mb_emit_icon (mb, t->attrs);
5298 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5303 g_assert_not_reached ();
5310 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5311 MonoMarshalSpec *spec,
5312 int conv_arg, MonoType **conv_arg_type,
5313 MarshalAction action)
5315 MonoMethodBuilder *mb = m->mb;
5319 klass = mono_class_from_mono_type (t);
5322 case MARSHAL_ACTION_CONV_IN:
5323 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5324 klass->blittable || klass->enumtype)
5327 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5329 /* store the address of the source into local variable 0 */
5331 mono_mb_emit_ldarg (mb, argnum);
5333 mono_mb_emit_ldarg_addr (mb, argnum);
5335 mono_mb_emit_stloc (mb, 0);
5337 /* allocate space for the native struct and
5338 * store the address into local variable 1 (dest) */
5339 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5340 mono_mb_emit_byte (mb, CEE_PREFIX1);
5341 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5342 mono_mb_emit_stloc (mb, conv_arg);
5345 mono_mb_emit_ldloc (mb, 0);
5346 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5349 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5351 mono_mb_emit_ldloc (mb, conv_arg);
5352 mono_mb_emit_stloc (mb, 1);
5354 /* emit valuetype conversion code */
5355 emit_struct_conv (mb, klass, FALSE);
5359 mono_mb_patch_branch (mb, pos);
5362 case MARSHAL_ACTION_PUSH:
5363 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5365 g_assert (!t->byref);
5367 /* Have to change the signature since the vtype is passed byref */
5368 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5370 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5371 klass->blittable || klass->enumtype)
5372 mono_mb_emit_ldarg_addr (mb, argnum);
5374 mono_mb_emit_ldloc (mb, conv_arg);
5378 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5379 klass->blittable || klass->enumtype) {
5380 mono_mb_emit_ldarg (mb, argnum);
5383 mono_mb_emit_ldloc (mb, conv_arg);
5385 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5386 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5390 case MARSHAL_ACTION_CONV_OUT:
5391 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5392 klass->blittable || klass->enumtype)
5396 /* dst = argument */
5397 mono_mb_emit_ldarg (mb, argnum);
5398 mono_mb_emit_stloc (mb, 1);
5400 mono_mb_emit_ldloc (mb, 1);
5401 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5403 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5404 /* src = tmp_locals [i] */
5405 mono_mb_emit_ldloc (mb, conv_arg);
5406 mono_mb_emit_stloc (mb, 0);
5408 /* emit valuetype conversion code */
5409 emit_struct_conv (mb, klass, TRUE);
5413 emit_struct_free (mb, klass, conv_arg);
5416 mono_mb_patch_branch (mb, pos);
5419 case MARSHAL_ACTION_CONV_RESULT:
5420 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5422 mono_mb_emit_stloc (mb, 3);
5425 /* load pointer to returned value type */
5426 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5427 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5428 /* store the address of the source into local variable 0 */
5429 mono_mb_emit_stloc (mb, 0);
5431 mono_mb_emit_ldloc_addr (mb, 3);
5432 mono_mb_emit_stloc (mb, 1);
5434 /* emit valuetype conversion code */
5435 emit_struct_conv (mb, klass, TRUE);
5438 case MARSHAL_ACTION_MANAGED_CONV_IN:
5439 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5440 klass->blittable || klass->enumtype) {
5445 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5447 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5451 mono_mb_emit_ldarg (mb, argnum);
5453 mono_mb_emit_ldarg_addr (mb, argnum);
5454 mono_mb_emit_stloc (mb, 0);
5457 mono_mb_emit_ldloc (mb, 0);
5458 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5461 mono_mb_emit_ldloc_addr (mb, conv_arg);
5462 mono_mb_emit_stloc (mb, 1);
5464 /* emit valuetype conversion code */
5465 emit_struct_conv (mb, klass, TRUE);
5468 mono_mb_patch_branch (mb, pos);
5471 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5472 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5473 klass->blittable || klass->enumtype) {
5477 /* Check for null */
5478 mono_mb_emit_ldarg (mb, argnum);
5479 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5482 mono_mb_emit_ldloc_addr (mb, conv_arg);
5483 mono_mb_emit_stloc (mb, 0);
5486 mono_mb_emit_ldarg (mb, argnum);
5487 mono_mb_emit_stloc (mb, 1);
5489 /* emit valuetype conversion code */
5490 emit_struct_conv (mb, klass, FALSE);
5492 mono_mb_patch_branch (mb, pos2);
5495 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5496 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5497 klass->blittable || klass->enumtype) {
5498 mono_mb_emit_stloc (mb, 3);
5503 /* load pointer to returned value type */
5504 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5505 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5507 /* store the address of the source into local variable 0 */
5508 mono_mb_emit_stloc (mb, 0);
5509 /* allocate space for the native struct and
5510 * store the address into dst_ptr */
5511 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5512 m->retobj_class = klass;
5513 g_assert (m->retobj_var);
5514 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5515 mono_mb_emit_byte (mb, CEE_CONV_I);
5516 mono_mb_emit_icall (mb, mono_marshal_alloc);
5517 mono_mb_emit_stloc (mb, 1);
5518 mono_mb_emit_ldloc (mb, 1);
5519 mono_mb_emit_stloc (mb, m->retobj_var);
5521 /* emit valuetype conversion code */
5522 emit_struct_conv (mb, klass, FALSE);
5526 g_assert_not_reached ();
5533 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5534 MonoMarshalSpec *spec,
5535 int conv_arg, MonoType **conv_arg_type,
5536 MarshalAction action)
5538 MonoMethodBuilder *mb = m->mb;
5539 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5540 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5544 case MARSHAL_ACTION_CONV_IN:
5545 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5546 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5549 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5552 mono_mb_emit_ldarg (mb, argnum);
5553 mono_mb_emit_byte (mb, CEE_LDIND_I);
5555 mono_mb_emit_ldarg (mb, argnum);
5559 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5560 MonoException *exc = mono_get_exception_not_implemented (msg);
5563 mono_raise_exception (exc);
5566 mono_mb_emit_icall (mb, conv_to_icall (conv));
5568 mono_mb_emit_stloc (mb, conv_arg);
5571 case MARSHAL_ACTION_CONV_OUT:
5572 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5574 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5575 mono_mb_emit_exception_marshal_directive (mb, msg);
5579 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5580 mono_mb_emit_ldarg (mb, argnum);
5581 mono_mb_emit_ldloc (mb, conv_arg);
5582 mono_mb_emit_icall (mb, conv_to_icall (conv));
5583 mono_mb_emit_byte (mb, CEE_STIND_REF);
5586 if (need_free || (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5587 mono_mb_emit_ldloc (mb, conv_arg);
5588 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5589 mono_mb_emit_icall (mb, mono_free_bstr);
5591 mono_mb_emit_icall (mb, mono_marshal_free);
5595 case MARSHAL_ACTION_PUSH:
5597 mono_mb_emit_ldloc_addr (mb, conv_arg);
5599 mono_mb_emit_ldloc (mb, conv_arg);
5602 case MARSHAL_ACTION_CONV_RESULT:
5603 mono_mb_emit_stloc (mb, 0);
5605 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5607 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5608 mono_mb_emit_exception_marshal_directive (mb, msg);
5612 mono_mb_emit_ldloc (mb, 0);
5613 mono_mb_emit_icall (mb, conv_to_icall (conv));
5614 mono_mb_emit_stloc (mb, 3);
5616 /* free the string */
5617 mono_mb_emit_ldloc (mb, 0);
5618 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5619 mono_mb_emit_icall (mb, mono_free_bstr);
5621 mono_mb_emit_icall (mb, mono_marshal_free);
5624 case MARSHAL_ACTION_MANAGED_CONV_IN:
5625 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5627 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5629 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5631 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5632 mono_mb_emit_exception_marshal_directive (mb, msg);
5636 mono_mb_emit_ldarg (mb, argnum);
5638 mono_mb_emit_byte (mb, CEE_LDIND_I);
5639 mono_mb_emit_icall (mb, conv_to_icall (conv));
5640 mono_mb_emit_stloc (mb, conv_arg);
5643 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5646 mono_mb_emit_ldarg (mb, argnum);
5647 mono_mb_emit_ldloc (mb, conv_arg);
5648 mono_mb_emit_icall (mb, conv_to_icall (conv));
5649 mono_mb_emit_byte (mb, CEE_STIND_I);
5654 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5655 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5656 /* We need to make a copy so the caller is able to free it */
5657 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5659 mono_mb_emit_icall (mb, conv_to_icall (conv));
5660 mono_mb_emit_stloc (mb, 3);
5664 g_assert_not_reached ();
5671 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5672 MonoMarshalSpec *spec, int conv_arg,
5673 MonoType **conv_arg_type, MarshalAction action)
5675 MonoMethodBuilder *mb = m->mb;
5678 case MARSHAL_ACTION_CONV_IN: {
5679 MonoType *intptr_type;
5680 int dar_release_slot, pos;
5682 intptr_type = &mono_defaults.int_class->byval_arg;
5683 conv_arg = mono_mb_add_local (mb, intptr_type);
5684 *conv_arg_type = intptr_type;
5686 if (!sh_dangerous_add_ref)
5687 init_safe_handle ();
5689 mono_mb_emit_ldarg (mb, argnum);
5690 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5691 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5693 mono_mb_patch_branch (mb, pos);
5696 * My tests in show that ref SafeHandles are not really
5697 * passed as ref objects. Instead a NULL is passed as the
5700 mono_mb_emit_icon (mb, 0);
5701 mono_mb_emit_stloc (mb, conv_arg);
5705 /* Create local to hold the ref parameter to DangerousAddRef */
5706 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5708 /* set release = false; */
5709 mono_mb_emit_icon (mb, 0);
5710 mono_mb_emit_stloc (mb, dar_release_slot);
5712 /* safehandle.DangerousAddRef (ref release) */
5713 mono_mb_emit_ldarg (mb, argnum);
5714 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5715 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5717 /* Pull the handle field from SafeHandle */
5718 mono_mb_emit_ldarg (mb, argnum);
5719 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5720 mono_mb_emit_byte (mb, CEE_LDIND_I);
5721 mono_mb_emit_stloc (mb, conv_arg);
5726 case MARSHAL_ACTION_PUSH:
5728 mono_mb_emit_ldloc_addr (mb, conv_arg);
5730 mono_mb_emit_ldloc (mb, conv_arg);
5733 case MARSHAL_ACTION_CONV_OUT: {
5734 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5735 int dar_release_slot = conv_arg + 1;
5738 if (!sh_dangerous_release)
5739 init_safe_handle ();
5745 * My tests indicate that ref SafeHandles parameters are not actually
5746 * passed by ref, but instead a new Handle is created regardless of
5747 * whether a change happens in the unmanaged side.
5749 * Also, the Handle is created before calling into unmanaged code,
5750 * but we do not support that mechanism (getting to the original
5751 * handle) and it makes no difference where we create this
5753 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5755 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5758 /* refval = new SafeHandleDerived ()*/
5759 mono_mb_emit_ldarg (mb, argnum);
5760 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5761 mono_mb_emit_byte (mb, CEE_STIND_REF);
5763 /* refval.handle = returned_handle */
5764 mono_mb_emit_ldarg (mb, argnum);
5765 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5766 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5767 mono_mb_emit_ldloc (mb, conv_arg);
5768 mono_mb_emit_byte (mb, CEE_STIND_I);
5770 mono_mb_emit_ldloc (mb, dar_release_slot);
5771 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5772 mono_mb_emit_ldarg (mb, argnum);
5773 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5774 mono_mb_patch_branch (mb, label_next);
5779 case MARSHAL_ACTION_CONV_RESULT: {
5780 MonoMethod *ctor = NULL;
5781 int intptr_handle_slot;
5783 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5784 mono_mb_emit_byte (mb, CEE_POP);
5785 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
5789 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5791 mono_mb_emit_byte (mb, CEE_POP);
5792 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5795 /* Store the IntPtr results into a local */
5796 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5797 mono_mb_emit_stloc (mb, intptr_handle_slot);
5799 /* Create return value */
5800 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5801 mono_mb_emit_stloc (mb, 3);
5803 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5804 mono_mb_emit_ldloc (mb, 3);
5805 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
5806 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5807 mono_mb_emit_byte (mb, CEE_STIND_I);
5811 case MARSHAL_ACTION_MANAGED_CONV_IN:
5812 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5815 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5816 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5819 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5820 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5823 printf ("Unhandled case for MarshalAction: %d\n", action);
5830 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5831 MonoMarshalSpec *spec, int conv_arg,
5832 MonoType **conv_arg_type, MarshalAction action)
5834 MonoMethodBuilder *mb = m->mb;
5837 case MARSHAL_ACTION_CONV_IN: {
5838 MonoType *intptr_type;
5840 intptr_type = &mono_defaults.int_class->byval_arg;
5841 conv_arg = mono_mb_add_local (mb, intptr_type);
5842 *conv_arg_type = intptr_type;
5845 mono_mb_emit_exception_marshal_directive (mb,
5846 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5849 mono_mb_emit_ldarg_addr (mb, argnum);
5850 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
5851 mono_mb_emit_byte (mb, CEE_ADD);
5852 mono_mb_emit_byte (mb, CEE_LDIND_I);
5853 mono_mb_emit_stloc (mb, conv_arg);
5857 case MARSHAL_ACTION_PUSH:
5858 mono_mb_emit_ldloc (mb, conv_arg);
5861 case MARSHAL_ACTION_CONV_OUT: {
5862 /* no resource release required */
5866 case MARSHAL_ACTION_CONV_RESULT: {
5867 mono_mb_emit_exception_marshal_directive (mb,
5868 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
5872 case MARSHAL_ACTION_MANAGED_CONV_IN:
5873 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5876 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5877 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5880 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5881 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5884 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5891 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5892 MonoMarshalSpec *spec,
5893 int conv_arg, MonoType **conv_arg_type,
5894 MarshalAction action)
5896 MonoMethodBuilder *mb = m->mb;
5897 MonoClass *klass = mono_class_from_mono_type (t);
5901 case MARSHAL_ACTION_CONV_IN:
5902 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5903 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5905 m->orig_conv_args [argnum] = 0;
5907 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5908 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5909 mono_mb_emit_exception_marshal_directive (mb, msg);
5913 if (klass->delegate) {
5915 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5916 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5917 mono_mb_emit_exception_marshal_directive (mb, msg);
5919 mono_mb_emit_byte (mb, CEE_LDNULL);
5920 mono_mb_emit_stloc (mb, conv_arg);
5922 mono_mb_emit_ldarg (mb, argnum);
5923 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5924 mono_mb_emit_stloc (mb, conv_arg);
5926 } else if (klass == mono_defaults.stringbuilder_class) {
5927 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5928 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5930 g_assert (!t->byref);
5931 mono_mb_emit_ldarg (mb, argnum);
5934 mono_mb_emit_icall (mb, conv_to_icall (conv));
5936 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5937 MonoException *exc = mono_get_exception_not_implemented (msg);
5940 mono_raise_exception (exc);
5943 mono_mb_emit_stloc (mb, conv_arg);
5944 } else if (klass->blittable) {
5945 mono_mb_emit_byte (mb, CEE_LDNULL);
5946 mono_mb_emit_stloc (mb, conv_arg);
5948 mono_mb_emit_ldarg (mb, argnum);
5949 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5951 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5953 mono_mb_emit_stloc (mb, conv_arg);
5955 mono_mb_patch_branch (mb, pos);
5958 mono_mb_emit_byte (mb, CEE_LDNULL);
5959 mono_mb_emit_stloc (mb, conv_arg);
5962 /* we dont need any conversions for out parameters */
5963 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5966 mono_mb_emit_ldarg (mb, argnum);
5967 mono_mb_emit_byte (mb, CEE_LDIND_I);
5970 mono_mb_emit_ldarg (mb, argnum);
5971 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5972 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5975 /* store the address of the source into local variable 0 */
5976 mono_mb_emit_stloc (mb, 0);
5977 mono_mb_emit_ldloc (mb, 0);
5978 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5980 /* allocate space for the native struct and store the address */
5981 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5982 mono_mb_emit_byte (mb, CEE_PREFIX1);
5983 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5984 mono_mb_emit_stloc (mb, conv_arg);
5987 /* Need to store the original buffer so we can free it later */
5988 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5989 mono_mb_emit_ldloc (mb, conv_arg);
5990 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5993 /* set the src_ptr */
5994 mono_mb_emit_ldloc (mb, 0);
5995 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5996 mono_mb_emit_stloc (mb, 0);
5999 mono_mb_emit_ldloc (mb, conv_arg);
6000 mono_mb_emit_stloc (mb, 1);
6002 /* emit valuetype conversion code */
6003 emit_struct_conv (mb, klass, FALSE);
6005 mono_mb_patch_branch (mb, pos);
6009 case MARSHAL_ACTION_CONV_OUT:
6010 if (klass == mono_defaults.stringbuilder_class) {
6012 MonoMarshalNative encoding;
6013 MonoMarshalConv conv;
6015 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6016 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6018 g_assert (!t->byref);
6019 g_assert (encoding != -1);
6021 mono_mb_emit_ldarg (mb, argnum);
6022 mono_mb_emit_ldloc (mb, conv_arg);
6024 mono_mb_emit_icall (mb, conv_to_icall (conv));
6027 mono_mb_emit_ldloc (mb, conv_arg);
6028 mono_mb_emit_icall (mb, mono_marshal_free);
6033 if (klass->delegate) {
6035 mono_mb_emit_ldarg (mb, argnum);
6036 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6037 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6038 mono_mb_emit_ldloc (mb, conv_arg);
6039 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6040 mono_mb_emit_byte (mb, CEE_STIND_REF);
6045 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6046 /* allocate a new object */
6047 mono_mb_emit_ldarg (mb, argnum);
6048 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6049 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6050 mono_mb_emit_byte (mb, CEE_STIND_REF);
6053 /* dst = *argument */
6054 mono_mb_emit_ldarg (mb, argnum);
6057 mono_mb_emit_byte (mb, CEE_LDIND_I);
6059 mono_mb_emit_stloc (mb, 1);
6061 mono_mb_emit_ldloc (mb, 1);
6062 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6064 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6065 mono_mb_emit_ldloc (mb, 1);
6066 mono_mb_emit_icon (mb, sizeof (MonoObject));
6067 mono_mb_emit_byte (mb, CEE_ADD);
6068 mono_mb_emit_stloc (mb, 1);
6070 /* src = tmp_locals [i] */
6071 mono_mb_emit_ldloc (mb, conv_arg);
6072 mono_mb_emit_stloc (mb, 0);
6074 /* emit valuetype conversion code */
6075 emit_struct_conv (mb, klass, TRUE);
6077 /* Free the structure returned by the native code */
6078 emit_struct_free (mb, klass, conv_arg);
6080 if (m->orig_conv_args [argnum]) {
6082 * If the native function changed the pointer, then free
6083 * the original structure plus the new pointer.
6085 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6086 mono_mb_emit_ldloc (mb, conv_arg);
6087 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6089 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6090 g_assert (m->orig_conv_args [argnum]);
6092 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6095 mono_mb_emit_ldloc (mb, conv_arg);
6096 mono_mb_emit_icall (mb, g_free);
6098 mono_mb_patch_branch (mb, pos2);
6102 /* Free the original structure passed to native code */
6103 emit_struct_free (mb, klass, conv_arg);
6105 mono_mb_patch_branch (mb, pos);
6108 case MARSHAL_ACTION_PUSH:
6110 mono_mb_emit_ldloc_addr (mb, conv_arg);
6112 mono_mb_emit_ldloc (mb, conv_arg);
6115 case MARSHAL_ACTION_CONV_RESULT:
6116 if (klass->delegate) {
6117 g_assert (!t->byref);
6118 mono_mb_emit_stloc (mb, 0);
6119 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6120 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6121 mono_mb_emit_ldloc (mb, 0);
6122 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6123 mono_mb_emit_stloc (mb, 3);
6126 mono_mb_emit_stloc (mb, 0);
6128 /* Make a copy since emit_conv modifies local 0 */
6129 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6130 mono_mb_emit_ldloc (mb, 0);
6131 mono_mb_emit_stloc (mb, loc);
6133 mono_mb_emit_byte (mb, CEE_LDNULL);
6134 mono_mb_emit_stloc (mb, 3);
6136 mono_mb_emit_ldloc (mb, 0);
6137 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6139 /* allocate result object */
6141 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6142 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6143 mono_mb_emit_stloc (mb, 3);
6147 mono_mb_emit_ldloc (mb, 3);
6148 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6149 mono_mb_emit_stloc (mb, 1);
6151 /* emit conversion code */
6152 emit_struct_conv (mb, klass, TRUE);
6154 emit_struct_free (mb, klass, loc);
6156 /* Free the pointer allocated by unmanaged code */
6157 mono_mb_emit_ldloc (mb, loc);
6158 mono_mb_emit_icall (mb, g_free);
6159 mono_mb_patch_branch (mb, pos);
6163 case MARSHAL_ACTION_MANAGED_CONV_IN:
6164 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6166 if (klass->delegate) {
6167 g_assert (!t->byref);
6168 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6169 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6170 mono_mb_emit_ldarg (mb, argnum);
6171 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6172 mono_mb_emit_stloc (mb, conv_arg);
6176 if (klass == mono_defaults.stringbuilder_class) {
6177 MonoMarshalNative encoding;
6179 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6182 g_assert (encoding == MONO_NATIVE_LPSTR);
6184 g_assert (!t->byref);
6185 g_assert (encoding != -1);
6187 mono_mb_emit_ldarg (mb, argnum);
6188 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6189 mono_mb_emit_stloc (mb, conv_arg);
6193 /* The class can not have an automatic layout */
6194 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6195 mono_mb_emit_auto_layout_exception (mb, klass);
6199 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6200 mono_mb_emit_byte (mb, CEE_LDNULL);
6201 mono_mb_emit_stloc (mb, conv_arg);
6206 mono_mb_emit_ldarg (mb, argnum);
6210 /* Check for NULL and raise an exception */
6211 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6213 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6215 mono_mb_patch_branch (mb, pos2);
6216 mono_mb_emit_ldarg (mb, argnum);
6217 mono_mb_emit_byte (mb, CEE_LDIND_I);
6220 mono_mb_emit_stloc (mb, 0);
6222 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6223 mono_mb_emit_stloc (mb, conv_arg);
6225 mono_mb_emit_ldloc (mb, 0);
6226 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6228 /* Create and set dst */
6229 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6230 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6231 mono_mb_emit_stloc (mb, conv_arg);
6232 mono_mb_emit_ldloc (mb, conv_arg);
6233 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6234 mono_mb_emit_stloc (mb, 1);
6236 /* emit valuetype conversion code */
6237 emit_struct_conv (mb, klass, TRUE);
6239 mono_mb_patch_branch (mb, pos);
6242 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6244 /* Check for null */
6245 mono_mb_emit_ldloc (mb, conv_arg);
6246 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6247 mono_mb_emit_ldarg (mb, argnum);
6248 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6249 mono_mb_emit_byte (mb, CEE_STIND_REF);
6250 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6252 mono_mb_patch_branch (mb, pos);
6255 mono_mb_emit_ldloc (mb, conv_arg);
6256 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6257 mono_mb_emit_stloc (mb, 0);
6259 /* Allocate and set dest */
6260 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6261 mono_mb_emit_byte (mb, CEE_CONV_I);
6262 mono_mb_emit_icall (mb, mono_marshal_alloc);
6263 mono_mb_emit_stloc (mb, 1);
6265 /* Update argument pointer */
6266 mono_mb_emit_ldarg (mb, argnum);
6267 mono_mb_emit_ldloc (mb, 1);
6268 mono_mb_emit_byte (mb, CEE_STIND_I);
6270 /* emit valuetype conversion code */
6271 emit_struct_conv (mb, klass, FALSE);
6273 mono_mb_patch_branch (mb, pos2);
6275 /* byval [Out] marshalling */
6277 /* FIXME: Handle null */
6280 mono_mb_emit_ldloc (mb, conv_arg);
6281 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6282 mono_mb_emit_stloc (mb, 0);
6285 mono_mb_emit_ldarg (mb, argnum);
6286 mono_mb_emit_stloc (mb, 1);
6288 /* emit valuetype conversion code */
6289 emit_struct_conv (mb, klass, FALSE);
6293 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6294 if (klass->delegate) {
6295 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6296 mono_mb_emit_stloc (mb, 3);
6300 /* The class can not have an automatic layout */
6301 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6302 mono_mb_emit_auto_layout_exception (mb, klass);
6306 mono_mb_emit_stloc (mb, 0);
6307 /* Check for null */
6308 mono_mb_emit_ldloc (mb, 0);
6309 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6310 mono_mb_emit_byte (mb, CEE_LDNULL);
6311 mono_mb_emit_stloc (mb, 3);
6312 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6314 mono_mb_patch_branch (mb, pos);
6317 mono_mb_emit_ldloc (mb, 0);
6318 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6319 mono_mb_emit_stloc (mb, 0);
6321 /* Allocate and set dest */
6322 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6323 mono_mb_emit_byte (mb, CEE_CONV_I);
6324 mono_mb_emit_icall (mb, mono_marshal_alloc);
6325 mono_mb_emit_byte (mb, CEE_DUP);
6326 mono_mb_emit_stloc (mb, 1);
6327 mono_mb_emit_stloc (mb, 3);
6329 emit_struct_conv (mb, klass, FALSE);
6331 mono_mb_patch_branch (mb, pos2);
6335 g_assert_not_reached ();
6342 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6343 MonoMarshalSpec *spec,
6344 int conv_arg, MonoType **conv_arg_type,
6345 MarshalAction action)
6347 MonoMethodBuilder *mb = m->mb;
6348 static MonoMethod *get_object_for_native_variant = NULL;
6349 static MonoMethod *get_native_variant_for_object = NULL;
6351 mono_init_com_types ();
6353 if (!get_object_for_native_variant)
6354 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6355 g_assert (get_object_for_native_variant);
6357 if (!get_native_variant_for_object)
6358 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6359 g_assert (get_native_variant_for_object);
6362 case MARSHAL_ACTION_CONV_IN: {
6363 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
6366 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6368 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6370 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6373 mono_mb_emit_ldarg (mb, argnum);
6375 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6376 mono_mb_emit_ldloc_addr (mb, conv_arg);
6377 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6381 case MARSHAL_ACTION_CONV_OUT: {
6382 static MonoMethod *variant_clear = NULL;
6385 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
6386 g_assert (variant_clear);
6389 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6390 mono_mb_emit_ldarg (mb, argnum);
6391 mono_mb_emit_ldloc_addr (mb, conv_arg);
6392 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6393 mono_mb_emit_byte (mb, CEE_STIND_REF);
6396 mono_mb_emit_ldloc_addr (mb, conv_arg);
6397 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6401 case MARSHAL_ACTION_PUSH:
6403 mono_mb_emit_ldloc_addr (mb, conv_arg);
6405 mono_mb_emit_ldloc (mb, conv_arg);
6408 case MARSHAL_ACTION_CONV_RESULT: {
6409 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6410 mono_mb_emit_exception_marshal_directive (mb, msg);
6414 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6415 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6418 *conv_arg_type = &mono_defaults.variant_class->this_arg;
6420 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
6422 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6426 mono_mb_emit_ldarg (mb, argnum);
6428 mono_mb_emit_ldarg_addr (mb, argnum);
6429 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6430 mono_mb_emit_stloc (mb, conv_arg);
6434 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6435 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6436 mono_mb_emit_ldloc (mb, conv_arg);
6437 mono_mb_emit_ldarg (mb, argnum);
6438 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6443 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6444 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6445 mono_mb_emit_exception_marshal_directive (mb, msg);
6450 g_assert_not_reached ();
6457 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6458 MonoMarshalSpec *spec,
6459 int conv_arg, MonoType **conv_arg_type,
6460 MarshalAction action)
6462 MonoMethodBuilder *mb = m->mb;
6463 MonoClass *klass = mono_class_from_mono_type (t);
6464 gboolean need_convert, need_free;
6465 MonoMarshalNative encoding;
6467 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6470 case MARSHAL_ACTION_CONV_IN:
6471 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6472 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6474 if (klass->element_class->blittable) {
6475 mono_mb_emit_ldarg (mb, argnum);
6477 mono_mb_emit_byte (mb, CEE_LDIND_I);
6478 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6479 mono_mb_emit_stloc (mb, conv_arg);
6482 guint32 label1, label2, label3;
6483 int index_var, src_var, dest_ptr, esize;
6484 MonoMarshalConv conv;
6485 gboolean is_string = FALSE;
6487 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6489 eklass = klass->element_class;
6491 if (eklass == mono_defaults.string_class) {
6493 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6495 else if (eklass == mono_defaults.stringbuilder_class) {
6497 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6502 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6503 mono_mb_emit_ldarg (mb, argnum);
6505 mono_mb_emit_byte (mb, CEE_LDIND_I);
6506 mono_mb_emit_stloc (mb, src_var);
6509 mono_mb_emit_ldloc (mb, src_var);
6510 mono_mb_emit_stloc (mb, conv_arg);
6511 mono_mb_emit_ldloc (mb, src_var);
6512 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6516 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6517 MonoException *exc = mono_get_exception_not_implemented (msg);
6520 mono_raise_exception (exc);
6525 esize = sizeof (gpointer);
6527 esize = mono_class_native_size (eklass, NULL);
6529 /* allocate space for the native struct and store the address */
6530 mono_mb_emit_icon (mb, esize);
6531 mono_mb_emit_ldloc (mb, src_var);
6532 mono_mb_emit_byte (mb, CEE_LDLEN);
6534 if (eklass == mono_defaults.string_class) {
6535 /* Make the array bigger for the terminating null */
6536 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6537 mono_mb_emit_byte (mb, CEE_ADD);
6539 mono_mb_emit_byte (mb, CEE_MUL);
6540 mono_mb_emit_byte (mb, CEE_PREFIX1);
6541 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6542 mono_mb_emit_stloc (mb, conv_arg);
6544 mono_mb_emit_ldloc (mb, conv_arg);
6545 mono_mb_emit_stloc (mb, dest_ptr);
6547 /* Emit marshalling loop */
6548 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6549 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6550 mono_mb_emit_stloc (mb, index_var);
6551 label2 = mono_mb_get_label (mb);
6552 mono_mb_emit_ldloc (mb, index_var);
6553 mono_mb_emit_ldloc (mb, src_var);
6554 mono_mb_emit_byte (mb, CEE_LDLEN);
6555 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6557 /* Emit marshalling code */
6560 mono_mb_emit_ldloc (mb, dest_ptr);
6561 mono_mb_emit_ldloc (mb, src_var);
6562 mono_mb_emit_ldloc (mb, index_var);
6563 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6564 mono_mb_emit_icall (mb, conv_to_icall (conv));
6565 mono_mb_emit_byte (mb, CEE_STIND_I);
6567 /* set the src_ptr */
6568 mono_mb_emit_ldloc (mb, src_var);
6569 mono_mb_emit_ldloc (mb, index_var);
6570 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6571 mono_mb_emit_stloc (mb, 0);
6574 mono_mb_emit_ldloc (mb, dest_ptr);
6575 mono_mb_emit_stloc (mb, 1);
6577 /* emit valuetype conversion code */
6578 emit_struct_conv (mb, eklass, FALSE);
6581 mono_mb_emit_add_to_local (mb, index_var, 1);
6582 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6584 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6586 mono_mb_patch_branch (mb, label3);
6588 if (eklass == mono_defaults.string_class) {
6589 /* Null terminate */
6590 mono_mb_emit_ldloc (mb, dest_ptr);
6591 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6592 mono_mb_emit_byte (mb, CEE_STIND_REF);
6595 mono_mb_patch_branch (mb, label1);
6600 case MARSHAL_ACTION_CONV_OUT:
6601 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6602 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);
6603 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6606 if (need_convert || need_free) {
6607 /* FIXME: Optimize blittable case */
6609 guint32 label1, label2, label3;
6610 int index_var, src_ptr, loc, esize;
6612 eklass = klass->element_class;
6613 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6614 esize = sizeof (gpointer);
6616 esize = mono_class_native_size (eklass, NULL);
6617 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6618 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6621 mono_mb_emit_ldarg (mb, argnum);
6623 mono_mb_emit_byte (mb, CEE_LDIND_I);
6624 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6626 mono_mb_emit_ldloc (mb, conv_arg);
6627 mono_mb_emit_stloc (mb, src_ptr);
6629 /* Emit marshalling loop */
6630 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6631 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6632 mono_mb_emit_stloc (mb, index_var);
6633 label2 = mono_mb_get_label (mb);
6634 mono_mb_emit_ldloc (mb, index_var);
6635 mono_mb_emit_ldarg (mb, argnum);
6637 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6638 mono_mb_emit_byte (mb, CEE_LDLEN);
6639 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6641 /* Emit marshalling code */
6643 if (eklass == mono_defaults.stringbuilder_class) {
6644 gboolean need_free2;
6645 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6647 g_assert (conv != -1);
6650 mono_mb_emit_ldarg (mb, argnum);
6652 mono_mb_emit_byte (mb, CEE_LDIND_I);
6653 mono_mb_emit_ldloc (mb, index_var);
6654 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6657 mono_mb_emit_ldloc (mb, src_ptr);
6658 mono_mb_emit_byte (mb, CEE_LDIND_I);
6660 mono_mb_emit_icall (mb, conv_to_icall (conv));
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);
6670 else if (eklass == mono_defaults.string_class) {
6673 mono_mb_emit_ldloc (mb, src_ptr);
6674 mono_mb_emit_byte (mb, CEE_LDIND_I);
6676 mono_mb_emit_icall (mb, mono_marshal_free);
6681 /* set the src_ptr */
6682 mono_mb_emit_ldloc (mb, src_ptr);
6683 mono_mb_emit_stloc (mb, 0);
6686 mono_mb_emit_ldarg (mb, argnum);
6688 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6689 mono_mb_emit_ldloc (mb, index_var);
6690 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6691 mono_mb_emit_stloc (mb, 1);
6693 /* emit valuetype conversion code */
6694 emit_struct_conv (mb, eklass, TRUE);
6698 mono_mb_emit_ldloc (mb, src_ptr);
6699 mono_mb_emit_stloc (mb, loc);
6700 mono_mb_emit_ldloc (mb, loc);
6702 emit_struct_free (mb, eklass, loc);
6706 mono_mb_emit_add_to_local (mb, index_var, 1);
6707 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6709 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6711 mono_mb_patch_branch (mb, label1);
6712 mono_mb_patch_branch (mb, label3);
6716 case MARSHAL_ACTION_PUSH:
6718 mono_mb_emit_ldloc_addr (mb, conv_arg);
6720 mono_mb_emit_ldloc (mb, conv_arg);
6723 case MARSHAL_ACTION_CONV_RESULT:
6724 /* fixme: we need conversions here */
6725 mono_mb_emit_stloc (mb, 3);
6728 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6730 guint32 label1, label2, label3;
6731 int index_var, src_ptr, loc, esize, param_num, num_elem;
6732 MonoMarshalConv conv;
6733 gboolean is_string = FALSE;
6735 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6736 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6739 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6740 mono_mb_emit_exception_marshal_directive (mb, msg);
6744 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6745 mono_mb_emit_exception_marshal_directive (mb, msg);
6748 if (spec->native != MONO_NATIVE_LPARRAY) {
6749 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6750 mono_mb_emit_exception_marshal_directive (mb, msg);
6754 /* FIXME: t is from the method which is wrapped, not the delegate type */
6755 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6757 param_num = spec->data.array_data.param_num;
6758 num_elem = spec->data.array_data.num_elem;
6759 if (spec->data.array_data.elem_mult == 0)
6760 /* param_num is not specified */
6763 if (param_num == -1) {
6764 if (num_elem <= 0) {
6765 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6766 mono_mb_emit_exception_marshal_directive (mb, msg);
6771 /* FIXME: Optimize blittable case */
6773 eklass = klass->element_class;
6774 if (eklass == mono_defaults.string_class) {
6776 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6778 else if (eklass == mono_defaults.stringbuilder_class) {
6780 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6785 mono_marshal_load_type_info (eklass);
6788 esize = sizeof (gpointer);
6790 esize = mono_class_native_size (eklass, NULL);
6791 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6792 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6794 mono_mb_emit_byte (mb, CEE_LDNULL);
6795 mono_mb_emit_stloc (mb, conv_arg);
6797 /* Check param index */
6798 if (param_num != -1) {
6799 if (param_num >= m->sig->param_count) {
6800 char *msg = g_strdup ("Array size control parameter index is out of range.");
6801 mono_mb_emit_exception_marshal_directive (mb, msg);
6804 switch (m->sig->params [param_num]->type) {
6817 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6818 mono_mb_emit_exception_marshal_directive (mb, msg);
6825 mono_mb_emit_ldarg (mb, argnum);
6826 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6828 mono_mb_emit_ldarg (mb, argnum);
6829 mono_mb_emit_stloc (mb, src_ptr);
6831 /* Create managed array */
6833 * The LPArray marshalling spec says that sometimes param_num starts
6834 * from 1, sometimes it starts from 0. But MS seems to allways start
6838 if (param_num == -1)
6839 mono_mb_emit_icon (mb, num_elem);
6841 /* FIXME: Add the two together */
6842 mono_mb_emit_ldarg (mb, param_num);
6844 mono_mb_emit_icon (mb, num_elem);
6845 mono_mb_emit_byte (mb, CEE_ADD);
6849 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6850 mono_mb_emit_stloc (mb, conv_arg);
6852 if (eklass->blittable) {
6853 mono_mb_emit_ldloc (mb, conv_arg);
6854 mono_mb_emit_byte (mb, CEE_CONV_I);
6855 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6856 mono_mb_emit_byte (mb, CEE_ADD);
6857 mono_mb_emit_ldarg (mb, argnum);
6858 mono_mb_emit_ldloc (mb, conv_arg);
6859 mono_mb_emit_byte (mb, CEE_LDLEN);
6860 mono_mb_emit_icon (mb, esize);
6861 mono_mb_emit_byte (mb, CEE_MUL);
6862 mono_mb_emit_byte (mb, CEE_PREFIX1);
6863 mono_mb_emit_byte (mb, CEE_CPBLK);
6867 /* Emit marshalling loop */
6868 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6869 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6870 mono_mb_emit_stloc (mb, index_var);
6871 label2 = mono_mb_get_label (mb);
6872 mono_mb_emit_ldloc (mb, index_var);
6873 mono_mb_emit_ldloc (mb, conv_arg);
6874 mono_mb_emit_byte (mb, CEE_LDLEN);
6875 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6877 /* Emit marshalling code */
6879 g_assert (conv != -1);
6881 mono_mb_emit_ldloc (mb, conv_arg);
6882 mono_mb_emit_ldloc (mb, index_var);
6884 mono_mb_emit_ldloc (mb, src_ptr);
6885 mono_mb_emit_byte (mb, CEE_LDIND_I);
6887 mono_mb_emit_icall (mb, conv_to_icall (conv));
6888 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6891 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6892 mono_mb_emit_exception_marshal_directive (mb, msg);
6896 mono_mb_emit_add_to_local (mb, index_var, 1);
6897 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6899 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6901 mono_mb_patch_branch (mb, label1);
6902 mono_mb_patch_branch (mb, label3);
6906 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6908 guint32 label1, label2, label3;
6909 int index_var, dest_ptr, loc, esize, param_num, num_elem;
6910 MonoMarshalConv conv;
6911 gboolean is_string = FALSE;
6914 /* Already handled in CONV_IN */
6917 /* These are already checked in CONV_IN */
6918 g_assert (!t->byref);
6919 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6920 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6922 param_num = spec->data.array_data.param_num;
6923 num_elem = spec->data.array_data.num_elem;
6925 if (spec->data.array_data.elem_mult == 0)
6926 /* param_num is not specified */
6929 if (param_num == -1) {
6930 if (num_elem <= 0) {
6931 g_assert_not_reached ();
6935 /* FIXME: Optimize blittable case */
6937 eklass = klass->element_class;
6938 if (eklass == mono_defaults.string_class) {
6940 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6942 else if (eklass == mono_defaults.stringbuilder_class) {
6944 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6949 mono_marshal_load_type_info (eklass);
6952 esize = sizeof (gpointer);
6954 esize = mono_class_native_size (eklass, NULL);
6956 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6957 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6960 mono_mb_emit_ldloc (mb, conv_arg);
6961 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6963 mono_mb_emit_ldarg (mb, argnum);
6964 mono_mb_emit_stloc (mb, dest_ptr);
6966 if (eklass->blittable) {
6968 mono_mb_emit_ldarg (mb, argnum);
6970 mono_mb_emit_ldloc (mb, conv_arg);
6971 mono_mb_emit_byte (mb, CEE_CONV_I);
6972 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
6973 mono_mb_emit_byte (mb, CEE_ADD);
6975 mono_mb_emit_ldloc (mb, conv_arg);
6976 mono_mb_emit_byte (mb, CEE_LDLEN);
6977 mono_mb_emit_icon (mb, esize);
6978 mono_mb_emit_byte (mb, CEE_MUL);
6979 mono_mb_emit_byte (mb, CEE_PREFIX1);
6980 mono_mb_emit_byte (mb, CEE_CPBLK);
6984 /* Emit marshalling loop */
6985 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6986 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6987 mono_mb_emit_stloc (mb, index_var);
6988 label2 = mono_mb_get_label (mb);
6989 mono_mb_emit_ldloc (mb, index_var);
6990 mono_mb_emit_ldloc (mb, conv_arg);
6991 mono_mb_emit_byte (mb, CEE_LDLEN);
6992 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6994 /* Emit marshalling code */
6996 g_assert (conv != -1);
6999 mono_mb_emit_ldloc (mb, dest_ptr);
7002 mono_mb_emit_ldloc (mb, conv_arg);
7003 mono_mb_emit_ldloc (mb, index_var);
7005 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7007 mono_mb_emit_icall (mb, conv_to_icall (conv));
7008 mono_mb_emit_byte (mb, CEE_STIND_I);
7011 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7012 mono_mb_emit_exception_marshal_directive (mb, msg);
7016 mono_mb_emit_add_to_local (mb, index_var, 1);
7017 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7019 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7021 mono_mb_patch_branch (mb, label1);
7022 mono_mb_patch_branch (mb, label3);
7026 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7028 guint32 label1, label2, label3;
7029 int index_var, src, dest, esize;
7030 MonoMarshalConv conv = -1;
7031 gboolean is_string = FALSE;
7033 g_assert (!t->byref);
7035 eklass = klass->element_class;
7037 mono_marshal_load_type_info (eklass);
7039 if (eklass == mono_defaults.string_class) {
7041 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7044 g_assert_not_reached ();
7048 esize = sizeof (gpointer);
7050 esize = mono_class_native_size (eklass, NULL);
7052 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7053 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7055 mono_mb_emit_stloc (mb, src);
7056 mono_mb_emit_ldloc (mb, src);
7057 mono_mb_emit_stloc (mb, 3);
7059 /* Check for null */
7060 mono_mb_emit_ldloc (mb, src);
7061 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7063 /* Allocate native array */
7064 mono_mb_emit_icon (mb, esize);
7065 mono_mb_emit_ldloc (mb, src);
7066 mono_mb_emit_byte (mb, CEE_LDLEN);
7068 if (eklass == mono_defaults.string_class) {
7069 /* Make the array bigger for the terminating null */
7070 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7071 mono_mb_emit_byte (mb, CEE_ADD);
7073 mono_mb_emit_byte (mb, CEE_MUL);
7074 mono_mb_emit_icall (mb, mono_marshal_alloc);
7075 mono_mb_emit_stloc (mb, dest);
7076 mono_mb_emit_ldloc (mb, dest);
7077 mono_mb_emit_stloc (mb, 3);
7079 /* Emit marshalling loop */
7080 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7081 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7082 mono_mb_emit_stloc (mb, index_var);
7083 label2 = mono_mb_get_label (mb);
7084 mono_mb_emit_ldloc (mb, index_var);
7085 mono_mb_emit_ldloc (mb, src);
7086 mono_mb_emit_byte (mb, CEE_LDLEN);
7087 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7089 /* Emit marshalling code */
7091 g_assert (conv != -1);
7094 mono_mb_emit_ldloc (mb, dest);
7097 mono_mb_emit_ldloc (mb, src);
7098 mono_mb_emit_ldloc (mb, index_var);
7100 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7102 mono_mb_emit_icall (mb, conv_to_icall (conv));
7103 mono_mb_emit_byte (mb, CEE_STIND_I);
7106 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7107 mono_mb_emit_exception_marshal_directive (mb, msg);
7111 mono_mb_emit_add_to_local (mb, index_var, 1);
7112 mono_mb_emit_add_to_local (mb, dest, esize);
7114 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7116 mono_mb_patch_branch (mb, label3);
7117 mono_mb_patch_branch (mb, label1);
7121 g_assert_not_reached ();
7128 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7129 MonoMarshalSpec *spec,
7130 int conv_arg, MonoType **conv_arg_type,
7131 MarshalAction action)
7133 MonoMethodBuilder *mb = m->mb;
7136 case MARSHAL_ACTION_CONV_IN: {
7137 MonoType *local_type;
7139 guint8 ldc_op = CEE_LDC_I4_1;
7142 local_type = &mono_defaults.int32_class->byval_arg;
7144 switch (spec->native) {
7145 case MONO_NATIVE_I1:
7146 case MONO_NATIVE_U1:
7147 local_type = &mono_defaults.byte_class->byval_arg;
7149 case MONO_NATIVE_VARIANTBOOL:
7150 local_type = &mono_defaults.int16_class->byval_arg;
7151 ldc_op = CEE_LDC_I4_M1;
7153 case MONO_NATIVE_BOOLEAN:
7154 local_type = &mono_defaults.int32_class->byval_arg;
7157 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7158 local_type = &mono_defaults.int32_class->byval_arg;
7163 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7165 *conv_arg_type = local_type;
7166 conv_arg = mono_mb_add_local (mb, local_type);
7168 mono_mb_emit_ldarg (mb, argnum);
7170 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7171 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7172 mono_mb_emit_byte (mb, ldc_op);
7173 mono_mb_emit_stloc (mb, conv_arg);
7174 mono_mb_patch_branch (mb, label_false);
7179 case MARSHAL_ACTION_CONV_OUT:
7181 int label_false, label_end;
7185 mono_mb_emit_ldarg (mb, argnum);
7186 mono_mb_emit_ldloc (mb, conv_arg);
7188 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7189 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7191 label_end = mono_mb_emit_branch (mb, CEE_BR);
7192 mono_mb_patch_branch (mb, label_false);
7193 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7194 mono_mb_patch_branch (mb, label_end);
7196 mono_mb_emit_byte (mb, CEE_STIND_I1);
7200 case MARSHAL_ACTION_PUSH:
7202 mono_mb_emit_ldloc_addr (mb, conv_arg);
7204 mono_mb_emit_ldloc (mb, conv_arg);
7206 mono_mb_emit_ldarg (mb, argnum);
7209 case MARSHAL_ACTION_CONV_RESULT:
7210 /* maybe we need to make sure that it fits within 8 bits */
7211 mono_mb_emit_stloc (mb, 3);
7214 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7215 MonoClass* conv_arg_class = mono_defaults.int32_class;
7216 guint8 ldop = CEE_LDIND_I4;
7217 int label_null, label_false;
7219 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7222 switch (spec->native) {
7223 case MONO_NATIVE_I1:
7224 case MONO_NATIVE_U1:
7225 conv_arg_class = mono_defaults.byte_class;
7226 ldop = CEE_LDIND_I1;
7228 case MONO_NATIVE_VARIANTBOOL:
7229 conv_arg_class = mono_defaults.int16_class;
7230 ldop = CEE_LDIND_I2;
7232 case MONO_NATIVE_BOOLEAN:
7235 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7240 *conv_arg_type = &conv_arg_class->this_arg;
7242 *conv_arg_type = &conv_arg_class->byval_arg;
7245 mono_mb_emit_ldarg (mb, argnum);
7250 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7251 mono_mb_emit_ldarg (mb, argnum);
7252 mono_mb_emit_byte (mb, ldop);
7255 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7256 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7257 mono_mb_emit_stloc (mb, conv_arg);
7258 mono_mb_patch_branch (mb, label_false);
7261 mono_mb_patch_branch (mb, label_null);
7265 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7266 guint8 stop = CEE_STIND_I4;
7267 guint8 ldc_op = CEE_LDC_I4_1;
7268 int label_null,label_false, label_end;;
7273 switch (spec->native) {
7274 case MONO_NATIVE_I1:
7275 case MONO_NATIVE_U1:
7276 stop = CEE_STIND_I1;
7278 case MONO_NATIVE_VARIANTBOOL:
7279 stop = CEE_STIND_I2;
7280 ldc_op = CEE_LDC_I4_M1;
7288 mono_mb_emit_ldarg (mb, argnum);
7289 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7291 mono_mb_emit_ldarg (mb, argnum);
7292 mono_mb_emit_ldloc (mb, conv_arg);
7294 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7295 mono_mb_emit_byte (mb, ldc_op);
7296 label_end = mono_mb_emit_branch (mb, CEE_BR);
7298 mono_mb_patch_branch (mb, label_false);
7299 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7300 mono_mb_patch_branch (mb, label_end);
7302 mono_mb_emit_byte (mb, stop);
7303 mono_mb_patch_branch (mb, label_null);
7308 g_assert_not_reached ();
7315 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7316 MonoMarshalSpec *spec, int conv_arg,
7317 MonoType **conv_arg_type, MarshalAction action)
7319 MonoMethodBuilder *mb = m->mb;
7322 case MARSHAL_ACTION_CONV_IN:
7323 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7324 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7325 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7329 case MARSHAL_ACTION_PUSH:
7330 mono_mb_emit_ldarg (mb, argnum);
7333 case MARSHAL_ACTION_CONV_RESULT:
7334 /* no conversions necessary */
7335 mono_mb_emit_stloc (mb, 3);
7346 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7347 MonoMarshalSpec *spec, int conv_arg,
7348 MonoType **conv_arg_type, MarshalAction action)
7350 MonoMethodBuilder *mb = m->mb;
7353 case MARSHAL_ACTION_PUSH:
7354 /* fixme: dont know how to marshal that. We cant simply
7355 * convert it to a one byte UTF8 character, because an
7356 * unicode character may need more that one byte in UTF8 */
7357 mono_mb_emit_ldarg (mb, argnum);
7360 case MARSHAL_ACTION_CONV_RESULT:
7361 /* fixme: we need conversions here */
7362 mono_mb_emit_stloc (mb, 3);
7373 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7374 MonoMarshalSpec *spec, int conv_arg,
7375 MonoType **conv_arg_type, MarshalAction action)
7377 MonoMethodBuilder *mb = m->mb;
7380 case MARSHAL_ACTION_PUSH:
7381 mono_mb_emit_ldarg (mb, argnum);
7384 case MARSHAL_ACTION_CONV_RESULT:
7385 /* no conversions necessary */
7386 mono_mb_emit_stloc (mb, 3);
7397 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7398 MonoMarshalSpec *spec, int conv_arg,
7399 MonoType **conv_arg_type, MarshalAction action)
7401 /* Ensure that we have marshalling info for this param */
7402 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7404 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7405 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7407 if (spec && spec->native == MONO_NATIVE_ASANY)
7408 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7411 case MONO_TYPE_VALUETYPE:
7412 if (t->data.klass == mono_defaults.handleref_class)
7413 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7415 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7416 case MONO_TYPE_STRING:
7417 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7418 case MONO_TYPE_CLASS:
7419 case MONO_TYPE_OBJECT:
7420 if (spec && spec->native == MONO_NATIVE_STRUCT)
7421 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7424 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7425 spec->native == MONO_NATIVE_IDISPATCH ||
7426 spec->native == MONO_NATIVE_INTERFACE))
7427 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7430 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7431 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7432 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7434 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7435 case MONO_TYPE_ARRAY:
7436 case MONO_TYPE_SZARRAY:
7437 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7438 case MONO_TYPE_BOOLEAN:
7439 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7441 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7442 case MONO_TYPE_CHAR:
7443 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7456 case MONO_TYPE_FNPTR:
7457 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7458 case MONO_TYPE_GENERICINST:
7459 if (mono_type_generic_inst_is_valuetype (t))
7460 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7462 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7469 * mono_marshal_emit_native_wrapper:
7470 * @image: the image to use for looking up custom marshallers
7471 * @sig: The signature of the native function
7472 * @piinfo: Marshalling information
7473 * @mspecs: Marshalling information
7474 * @aot: whenever the created method will be compiled by the AOT compiler
7475 * @method: if non-NULL, the pinvoke method to call
7476 * @check_exceptions: Whenever to check for pending exceptions after the native call
7478 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7481 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean aot, gboolean check_exceptions)
7483 EmitMarshalContext m;
7484 MonoMethodSignature *csig;
7486 int i, argnum, *tmp_locals;
7488 static MonoMethodSignature *get_last_error_sig = NULL;
7493 /* we copy the signature, so that we can set pinvoke to 0 */
7494 csig = signature_dup (mb->method->klass->image, sig);
7499 /* we allocate local for use with emit_struct_conv() */
7500 /* allocate local 0 (pointer) src_ptr */
7501 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7502 /* allocate local 1 (pointer) dst_ptr */
7503 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7504 /* allocate local 2 (boolean) delete_old */
7505 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7507 /* delete_old = FALSE */
7508 mono_mb_emit_icon (mb, 0);
7509 mono_mb_emit_stloc (mb, 2);
7511 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7512 /* allocate local 3 to store the return value */
7513 mono_mb_add_local (mb, sig->ret);
7516 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7517 /* Return type custom marshaling */
7519 * Since we can't determine the return type of the unmanaged function,
7520 * we assume it returns a pointer, and pass that pointer to
7521 * MarshalNativeToManaged.
7523 csig->ret = &mono_defaults.int_class->byval_arg;
7526 /* we first do all conversions */
7527 tmp_locals = alloca (sizeof (int) * sig->param_count);
7528 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
7530 for (i = 0; i < sig->param_count; i ++) {
7531 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7534 /* push all arguments */
7537 mono_mb_emit_byte (mb, CEE_LDARG_0);
7539 for (i = 0; i < sig->param_count; i++) {
7540 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7543 /* call the native method */
7544 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7546 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7548 g_assert_not_reached ();
7553 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7554 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7555 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7556 mono_mb_emit_calli (mb, csig);
7558 mono_mb_emit_native_call (mb, csig, func);
7562 /* Set LastError if needed */
7563 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7564 if (!get_last_error_sig) {
7565 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7566 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7567 get_last_error_sig->pinvoke = 1;
7570 #ifdef PLATFORM_WIN32
7572 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7573 * clobber its value.
7575 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7576 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7578 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7582 /* convert the result */
7583 if (!sig->ret->byref) {
7584 MonoMarshalSpec *spec = mspecs [0];
7585 type = sig->ret->type;
7587 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7588 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7593 case MONO_TYPE_VOID:
7595 case MONO_TYPE_VALUETYPE:
7596 klass = sig->ret->data.klass;
7597 if (klass->enumtype) {
7598 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7601 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7615 case MONO_TYPE_FNPTR:
7616 case MONO_TYPE_STRING:
7617 case MONO_TYPE_CLASS:
7618 case MONO_TYPE_OBJECT:
7619 case MONO_TYPE_BOOLEAN:
7620 case MONO_TYPE_ARRAY:
7621 case MONO_TYPE_SZARRAY:
7622 case MONO_TYPE_CHAR:
7624 case MONO_TYPE_GENERICINST:
7625 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7627 case MONO_TYPE_TYPEDBYREF:
7629 g_warning ("return type 0x%02x unknown", sig->ret->type);
7630 g_assert_not_reached ();
7634 mono_mb_emit_stloc (mb, 3);
7638 * Need to call this after converting the result since MONO_VTADDR needs
7639 * to be adjacent to the call instruction.
7641 if (check_exceptions)
7642 emit_thread_interrupt_checkpoint (mb);
7644 /* we need to convert byref arguments back and free string arrays */
7645 for (i = 0; i < sig->param_count; i++) {
7646 MonoType *t = sig->params [i];
7647 MonoMarshalSpec *spec = mspecs [i + 1];
7649 argnum = i + sig->hasthis;
7651 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7652 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7657 case MONO_TYPE_STRING:
7658 case MONO_TYPE_VALUETYPE:
7659 case MONO_TYPE_CLASS:
7660 case MONO_TYPE_OBJECT:
7661 case MONO_TYPE_SZARRAY:
7662 case MONO_TYPE_BOOLEAN:
7663 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7668 if (!MONO_TYPE_IS_VOID(sig->ret))
7669 mono_mb_emit_ldloc (mb, 3);
7671 mono_mb_emit_byte (mb, CEE_RET);
7675 * mono_marshal_get_native_wrapper:
7676 * @method: The MonoMethod to wrap.
7677 * @check_exceptions: Whenever to check for pending exceptions
7679 * generates IL code for the pinvoke wrapper (the generated method
7680 * calls the unmanaged code in piinfo->addr)
7683 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7685 MonoMethodSignature *sig, *csig;
7686 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7687 MonoMethodBuilder *mb;
7688 MonoMarshalSpec **mspecs;
7691 gboolean pinvoke = FALSE;
7694 const char *exc_class = "MissingMethodException";
7695 const char *exc_arg = NULL;
7697 g_assert (method != NULL);
7698 g_assert (mono_method_signature (method)->pinvoke);
7701 cache = get_cache (&method->klass->image->native_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7703 cache = get_cache (&method->klass->image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7704 if ((res = mono_marshal_find_in_cache (cache, method)))
7707 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7709 return mono_cominterop_get_native_wrapper (method);
7711 g_assert_not_reached ();
7715 sig = mono_method_signature (method);
7717 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7718 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7721 if (!piinfo->addr) {
7723 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7724 exc_arg = "Method contains unsupported native code";
7726 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7728 piinfo->addr = mono_lookup_internal_call (method);
7731 /* hack - redirect certain string constructors to CreateString */
7732 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7733 g_assert (!pinvoke);
7734 g_assert (method->string_ctor);
7735 g_assert (sig->hasthis);
7737 /* CreateString returns a value */
7738 csig = signature_dup (method->klass->image, sig);
7739 csig->ret = &mono_defaults.string_class->byval_arg;
7743 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7744 if (!strcmp ("CreateString", res->name) &&
7745 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7747 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7748 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7750 /* create a wrapper to preserve .ctor in stack trace */
7751 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7753 mono_mb_emit_byte (mb, CEE_LDARG_0);
7754 for (i = 1; i <= csig->param_count; i++)
7755 mono_mb_emit_ldarg (mb, i);
7756 mono_mb_emit_managed_call (mb, res, NULL);
7757 mono_mb_emit_byte (mb, CEE_RET);
7759 /* use native_wrapper_cache because internal calls are looked up there */
7760 res = mono_mb_create_and_cache (cache, method,
7761 mb, csig, csig->param_count + 1);
7769 /* exception will be thrown */
7770 piinfo->addr = NULL;
7771 g_warning ("cannot find CreateString for .ctor");
7774 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7776 mb->method->save_lmf = 1;
7779 * In AOT mode and embedding scenarios, it is possible that the icall is not
7780 * registered in the runtime doing the AOT compilation.
7782 if (!piinfo->addr && !aot) {
7783 mono_mb_emit_exception (mb, exc_class, exc_arg);
7784 csig = signature_dup (method->klass->image, sig);
7786 res = mono_mb_create_and_cache (cache, method,
7787 mb, csig, csig->param_count + 16);
7792 /* internal calls: we simply push all arguments and call the method (no conversions) */
7793 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7795 /* hack - string constructors returns a value */
7796 if (method->string_ctor) {
7797 csig = signature_dup (method->klass->image, sig);
7798 csig->ret = &mono_defaults.string_class->byval_arg;
7803 mono_mb_emit_byte (mb, CEE_LDARG_0);
7805 for (i = 0; i < sig->param_count; i++)
7806 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7809 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7810 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7811 mono_mb_emit_calli (mb, csig);
7813 g_assert (piinfo->addr);
7814 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7816 if (check_exceptions)
7817 emit_thread_interrupt_checkpoint (mb);
7818 mono_mb_emit_byte (mb, CEE_RET);
7820 csig = signature_dup (method->klass->image, csig);
7822 res = mono_mb_create_and_cache (cache, method,
7823 mb, csig, csig->param_count + 16);
7830 g_assert (piinfo->addr);
7832 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7833 mono_method_get_marshal_info (method, mspecs);
7835 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions);
7837 csig = signature_dup (method->klass->image, sig);
7839 res = mono_mb_create_and_cache (cache, method,
7840 mb, csig, csig->param_count + 16);
7843 for (i = sig->param_count; i >= 0; i--)
7845 mono_metadata_free_marshal_spec (mspecs [i]);
7848 /* 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)); */
7854 * mono_marshal_get_native_func_wrapper:
7855 * @image: The image to use for memory allocation and for looking up custom marshallers.
7856 * @sig: The signature of the function
7857 * @func: The native function to wrap
7859 * Returns a wrapper method around native functions, similar to the pinvoke
7863 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7864 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7866 MonoMethodSignature *csig;
7868 MonoMethodBuilder *mb;
7873 cache = get_cache (&image->native_wrapper_cache, mono_aligned_addr_hash, NULL);
7874 if ((res = mono_marshal_find_in_cache (cache, func)))
7877 name = g_strdup_printf ("wrapper_native_%p", func);
7878 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7879 mb->method->save_lmf = 1;
7881 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE);
7883 csig = signature_dup (image, sig);
7885 res = mono_mb_create_and_cache (cache, func,
7886 mb, csig, csig->param_count + 16);
7889 /* 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)); */
7895 * mono_marshal_emit_managed_wrapper:
7897 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7898 * the delegate which wraps the managed method to be called. For closed delegates,
7899 * it could have fewer parameters than the method it wraps.
7900 * THIS_LOC is the memory location where the target of the delegate is stored.
7903 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject** this_loc)
7905 MonoMethodSignature *sig, *csig;
7907 gboolean closed = FALSE;
7912 /* allocate local 0 (pointer) src_ptr */
7913 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7914 /* allocate local 1 (pointer) dst_ptr */
7915 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7916 /* allocate local 2 (boolean) delete_old */
7917 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7919 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7920 /* Closed delegate */
7921 g_assert (sig->param_count == invoke_sig->param_count + 1);
7923 /* Use a new signature without the first argument */
7924 sig = mono_metadata_signature_dup (sig);
7925 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7926 sig->param_count --;
7929 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7930 /* allocate local 3 to store the return value */
7931 mono_mb_add_local (mb, sig->ret);
7934 mono_mb_emit_icon (mb, 0);
7935 mono_mb_emit_stloc (mb, 2);
7937 /* we first do all conversions */
7938 tmp_locals = alloca (sizeof (int) * sig->param_count);
7939 for (i = 0; i < sig->param_count; i ++) {
7940 MonoType *t = sig->params [i];
7943 case MONO_TYPE_OBJECT:
7944 case MONO_TYPE_CLASS:
7945 case MONO_TYPE_VALUETYPE:
7946 case MONO_TYPE_ARRAY:
7947 case MONO_TYPE_SZARRAY:
7948 case MONO_TYPE_STRING:
7949 case MONO_TYPE_BOOLEAN:
7950 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7959 emit_thread_interrupt_checkpoint (mb);
7963 mono_mb_emit_ptr (mb, this_loc);
7964 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7967 g_assert_not_reached ();
7969 } else if (closed) {
7970 mono_mb_emit_ptr (mb, this_loc);
7971 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7974 for (i = 0; i < sig->param_count; i++) {
7975 MonoType *t = sig->params [i];
7977 if (tmp_locals [i]) {
7979 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7981 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7984 mono_mb_emit_ldarg (mb, i);
7987 mono_mb_emit_managed_call (mb, method, NULL);
7989 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7990 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7991 } else if (!sig->ret->byref) {
7992 switch (sig->ret->type) {
7993 case MONO_TYPE_VOID:
7995 case MONO_TYPE_BOOLEAN:
7998 case MONO_TYPE_CHAR:
8010 case MONO_TYPE_OBJECT:
8011 mono_mb_emit_stloc (mb, 3);
8013 case MONO_TYPE_STRING:
8014 csig->ret = &mono_defaults.int_class->byval_arg;
8015 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8017 case MONO_TYPE_VALUETYPE:
8018 case MONO_TYPE_CLASS:
8019 case MONO_TYPE_SZARRAY:
8020 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8023 g_warning ("return type 0x%02x unknown", sig->ret->type);
8024 g_assert_not_reached ();
8027 mono_mb_emit_stloc (mb, 3);
8030 /* Convert byref arguments back */
8031 for (i = 0; i < sig->param_count; i ++) {
8032 MonoType *t = sig->params [i];
8033 MonoMarshalSpec *spec = mspecs [i + 1];
8035 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8036 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8038 else if (t->byref) {
8040 case MONO_TYPE_CLASS:
8041 case MONO_TYPE_VALUETYPE:
8042 case MONO_TYPE_OBJECT:
8043 case MONO_TYPE_STRING:
8044 case MONO_TYPE_BOOLEAN:
8045 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8049 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8050 /* The [Out] information is encoded in the delegate signature */
8052 case MONO_TYPE_SZARRAY:
8053 case MONO_TYPE_CLASS:
8054 case MONO_TYPE_VALUETYPE:
8055 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8058 g_assert_not_reached ();
8063 if (m->retobj_var) {
8064 mono_mb_emit_ldloc (mb, m->retobj_var);
8065 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8066 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8069 if (!MONO_TYPE_IS_VOID(sig->ret))
8070 mono_mb_emit_ldloc (mb, 3);
8071 mono_mb_emit_byte (mb, CEE_RET);
8080 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8082 MonoMethodSignature *sig;
8085 #ifdef PLATFORM_WIN32
8087 * Under windows, delegates passed to native code must use the STDCALL
8088 * calling convention.
8090 csig->call_convention = MONO_CALL_STDCALL;
8093 sig = mono_method_signature (method);
8095 /* Change default calling convention if needed */
8096 /* Why is this a modopt ? */
8097 if (sig->ret && sig->ret->num_mods) {
8098 for (i = 0; i < sig->ret->num_mods; ++i) {
8099 MonoClass *cmod_class = mono_class_get (method->klass->image, sig->ret->modifiers [i].token);
8100 g_assert (cmod_class);
8101 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8102 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8103 csig->call_convention = MONO_CALL_C;
8104 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8105 csig->call_convention = MONO_CALL_STDCALL;
8106 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8107 csig->call_convention = MONO_CALL_FASTCALL;
8108 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8109 csig->call_convention = MONO_CALL_THISCALL;
8116 * generates IL code to call managed methods from unmanaged code
8119 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject **this_loc)
8121 static MonoClass *UnmanagedFunctionPointerAttribute;
8122 MonoMethodSignature *sig, *csig, *invoke_sig;
8123 MonoMethodBuilder *mb;
8124 MonoMethod *res, *invoke;
8125 MonoMarshalSpec **mspecs;
8126 MonoMethodPInvoke piinfo;
8129 EmitMarshalContext m;
8131 g_assert (method != NULL);
8132 g_assert (!mono_method_signature (method)->pinvoke);
8135 * FIXME: Should cache the method+delegate type pair, since the same method
8136 * could be called with different delegates, thus different marshalling
8139 cache = get_cache (&method->klass->image->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8140 if (!this_loc && (res = mono_marshal_find_in_cache (cache, method)))
8143 invoke = mono_get_delegate_invoke (delegate_klass);
8144 invoke_sig = mono_method_signature (invoke);
8146 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8147 mono_method_get_marshal_info (invoke, mspecs);
8149 sig = mono_method_signature (method);
8151 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8153 /* we copy the signature, so that we can modify it */
8155 /* Need to free this later */
8156 csig = mono_metadata_signature_dup (invoke_sig);
8158 csig = signature_dup (method->klass->image, invoke_sig);
8167 m.image = method->klass->image;
8169 mono_marshal_set_callconv_from_modopt (invoke, csig);
8171 /* Handle the UnmanagedFunctionPointerAttribute */
8172 if (!UnmanagedFunctionPointerAttribute)
8173 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8175 /* The attribute is only available in Net 2.0 */
8176 if (UnmanagedFunctionPointerAttribute) {
8177 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8178 MonoCustomAttrInfo *cinfo;
8181 * The pinvoke attributes are stored in a real custom attribute so we have to
8184 cinfo = mono_custom_attrs_from_class (delegate_klass);
8186 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8188 memset (&piinfo, 0, sizeof (piinfo));
8190 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8192 csig->call_convention = attr->call_conv - 1;
8195 mono_custom_attrs_free (cinfo);
8199 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this_loc);
8202 res = mono_mb_create_and_cache (cache, method,
8203 mb, csig, sig->param_count + 16);
8206 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8210 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8212 mono_metadata_free_marshal_spec (mspecs [i]);
8215 /* 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)); */
8221 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8224 MonoMethodSignature *sig;
8225 MonoMethodBuilder *mb;
8230 method = mono_get_method (image, token, NULL);
8233 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8234 MonoMethodSignature *csig;
8235 MonoMarshalSpec **mspecs;
8236 EmitMarshalContext m;
8238 sig = mono_method_signature (method);
8239 g_assert (!sig->hasthis);
8241 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8242 mono_method_get_marshal_info (method, mspecs);
8244 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8245 csig = signature_dup (image, sig);
8256 mono_marshal_set_callconv_from_modopt (method, csig);
8258 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8260 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, NULL);
8263 method = mono_mb_create_method (mb, csig, sig->param_count + 16);
8266 for (i = sig->param_count; i >= 0; i--)
8268 mono_metadata_free_marshal_spec (mspecs [i]);
8271 return mono_compile_method (method);
8274 sig = mono_method_signature (method);
8275 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8277 param_count = sig->param_count + sig->hasthis;
8278 for (i = 0; i < param_count; i++)
8279 mono_mb_emit_ldarg (mb, i);
8281 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8282 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8284 mono_mb_emit_op (mb, CEE_CALL, method);
8285 mono_mb_emit_byte (mb, CEE_RET);
8288 method = mono_mb_create_method (mb, sig, param_count);
8291 return mono_compile_method (method);
8294 static MonoReflectionType *
8295 type_from_handle (MonoType *handle)
8297 MonoDomain *domain = mono_domain_get ();
8298 MonoClass *klass = mono_class_from_mono_type (handle);
8300 MONO_ARCH_SAVE_REGS;
8302 mono_class_init (klass);
8303 return mono_type_get_object (domain, handle);
8307 * mono_marshal_get_isinst:
8308 * @klass: the type of the field
8310 * This method generates a function which can be used to check if an object is
8311 * an instance of the given type, icluding the case where the object is a proxy.
8312 * The generated function has the following signature:
8313 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8316 mono_marshal_get_isinst (MonoClass *klass)
8318 static MonoMethodSignature *isint_sig = NULL;
8321 int pos_was_ok, pos_failed, pos_end, pos_end2;
8323 MonoMethodBuilder *mb;
8325 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8326 if ((res = mono_marshal_find_in_cache (cache, klass)))
8330 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8331 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8332 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8333 isint_sig->pinvoke = 0;
8336 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8337 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8340 mb->method->save_lmf = 1;
8342 /* check if the object is a proxy that needs special cast */
8343 mono_mb_emit_ldarg (mb, 0);
8344 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8345 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8347 /* The result of MONO_ISINST can be:
8348 0) the type check succeeded
8349 1) the type check did not succeed
8350 2) a CanCastTo call is needed */
8352 mono_mb_emit_byte (mb, CEE_DUP);
8353 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8355 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8356 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8358 /* get the real proxy from the transparent proxy*/
8360 mono_mb_emit_ldarg (mb, 0);
8361 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8362 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8366 mono_mb_patch_branch (mb, pos_failed);
8367 mono_mb_emit_byte (mb, CEE_LDNULL);
8368 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8372 mono_mb_patch_branch (mb, pos_was_ok);
8373 mono_mb_emit_byte (mb, CEE_POP);
8374 mono_mb_emit_ldarg (mb, 0);
8378 mono_mb_patch_branch (mb, pos_end);
8379 mono_mb_patch_branch (mb, pos_end2);
8380 mono_mb_emit_byte (mb, CEE_RET);
8382 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8389 * mono_marshal_get_castclass:
8390 * @klass: the type of the field
8392 * This method generates a function which can be used to cast an object to
8393 * an instance of the given type, icluding the case where the object is a proxy.
8394 * The generated function has the following signature:
8395 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8398 mono_marshal_get_castclass (MonoClass *klass)
8400 static MonoMethodSignature *castclass_sig = NULL;
8403 int pos_was_ok, pos_was_ok2;
8405 MonoMethodBuilder *mb;
8407 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8408 if ((res = mono_marshal_find_in_cache (cache, klass)))
8411 if (!castclass_sig) {
8412 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8413 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8414 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8415 castclass_sig->pinvoke = 0;
8418 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8419 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8422 mb->method->save_lmf = 1;
8424 /* check if the object is a proxy that needs special cast */
8425 mono_mb_emit_ldarg (mb, 0);
8426 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8427 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8429 /* The result of MONO_ISINST can be:
8430 0) the cast is valid
8431 1) cast of unknown proxy type
8432 or an exception if the cast is is invalid
8435 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8437 /* get the real proxy from the transparent proxy*/
8439 mono_mb_emit_ldarg (mb, 0);
8440 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8441 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8444 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8447 mono_mb_patch_branch (mb, pos_was_ok);
8448 mono_mb_patch_branch (mb, pos_was_ok2);
8449 mono_mb_emit_ldarg (mb, 0);
8452 mono_mb_emit_byte (mb, CEE_RET);
8454 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8461 mono_marshal_get_proxy_cancast (MonoClass *klass)
8463 static MonoMethodSignature *isint_sig = NULL;
8466 int pos_failed, pos_end;
8468 MonoMethod *can_cast_to;
8469 MonoMethodDesc *desc;
8470 MonoMethodBuilder *mb;
8472 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
8473 if ((res = mono_marshal_find_in_cache (cache, klass)))
8477 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8478 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8479 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8480 isint_sig->pinvoke = 0;
8483 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8484 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8487 mb->method->save_lmf = 1;
8489 /* get the real proxy from the transparent proxy*/
8490 mono_mb_emit_ldarg (mb, 0);
8491 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8492 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8494 /* get the reflection type from the type handle */
8495 mono_mb_emit_ptr (mb, &klass->byval_arg);
8496 mono_mb_emit_icall (mb, type_from_handle);
8498 mono_mb_emit_ldarg (mb, 0);
8500 /* make the call to CanCastTo (type, ob) */
8501 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8502 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8503 g_assert (can_cast_to);
8504 mono_method_desc_free (desc);
8505 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8507 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8509 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8510 mono_mb_emit_ptr (mb, &klass->byval_arg);
8511 mono_mb_emit_icall (mb, type_from_handle);
8512 mono_mb_emit_ldarg (mb, 0);
8514 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8515 emit_thread_interrupt_checkpoint (mb);
8517 mono_mb_emit_ldarg (mb, 0);
8518 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8522 mono_mb_patch_branch (mb, pos_failed);
8523 mono_mb_emit_byte (mb, CEE_LDNULL);
8527 mono_mb_patch_branch (mb, pos_end);
8528 mono_mb_emit_byte (mb, CEE_RET);
8530 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8537 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8540 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8541 klass = mono_class_from_mono_type (rtype->type);
8542 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8546 * mono_marshal_get_struct_to_ptr:
8549 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8552 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8554 MonoMethodBuilder *mb;
8555 static MonoMethod *stoptr = NULL;
8558 g_assert (klass != NULL);
8560 mono_marshal_load_type_info (klass);
8562 if (klass->marshal_info->str_to_ptr)
8563 return klass->marshal_info->str_to_ptr;
8566 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8569 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8571 if (klass->blittable) {
8572 mono_mb_emit_byte (mb, CEE_LDARG_1);
8573 mono_mb_emit_byte (mb, CEE_LDARG_0);
8574 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8575 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8576 mono_mb_emit_byte (mb, CEE_PREFIX1);
8577 mono_mb_emit_byte (mb, CEE_CPBLK);
8580 /* allocate local 0 (pointer) src_ptr */
8581 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8582 /* allocate local 1 (pointer) dst_ptr */
8583 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8584 /* allocate local 2 (boolean) delete_old */
8585 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8586 mono_mb_emit_byte (mb, CEE_LDARG_2);
8587 mono_mb_emit_stloc (mb, 2);
8589 /* initialize src_ptr to point to the start of object data */
8590 mono_mb_emit_byte (mb, CEE_LDARG_0);
8591 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8592 mono_mb_emit_stloc (mb, 0);
8594 /* initialize dst_ptr */
8595 mono_mb_emit_byte (mb, CEE_LDARG_1);
8596 mono_mb_emit_stloc (mb, 1);
8598 emit_struct_conv (mb, klass, FALSE);
8601 mono_mb_emit_byte (mb, CEE_RET);
8603 res = mono_mb_create_method (mb, mono_signature_no_pinvoke (stoptr), 0);
8606 klass->marshal_info->str_to_ptr = res;
8611 * mono_marshal_get_ptr_to_struct:
8614 * generates IL code for PtrToStructure (IntPtr src, object structure)
8617 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8619 MonoMethodBuilder *mb;
8620 static MonoMethodSignature *ptostr = NULL;
8623 g_assert (klass != NULL);
8625 mono_marshal_load_type_info (klass);
8627 if (klass->marshal_info->ptr_to_str)
8628 return klass->marshal_info->ptr_to_str;
8631 MonoMethodSignature *sig;
8633 /* Create the signature corresponding to
8634 static void PtrToStructure (IntPtr ptr, object structure);
8635 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8636 sig = mono_create_icall_signature ("void ptr object");
8637 sig = signature_dup (mono_defaults.corlib, sig);
8639 mono_memory_barrier ();
8643 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8645 if (klass->blittable) {
8646 mono_mb_emit_byte (mb, CEE_LDARG_1);
8647 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8648 mono_mb_emit_byte (mb, CEE_LDARG_0);
8649 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8650 mono_mb_emit_byte (mb, CEE_PREFIX1);
8651 mono_mb_emit_byte (mb, CEE_CPBLK);
8654 /* allocate local 0 (pointer) src_ptr */
8655 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8656 /* allocate local 1 (pointer) dst_ptr */
8657 mono_mb_add_local (mb, &klass->this_arg);
8659 /* initialize src_ptr to point to the start of object data */
8660 mono_mb_emit_byte (mb, CEE_LDARG_0);
8661 mono_mb_emit_stloc (mb, 0);
8663 /* initialize dst_ptr */
8664 mono_mb_emit_byte (mb, CEE_LDARG_1);
8665 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8666 mono_mb_emit_stloc (mb, 1);
8668 emit_struct_conv (mb, klass, TRUE);
8671 mono_mb_emit_byte (mb, CEE_RET);
8673 res = mono_mb_create_method (mb, ptostr, 0);
8676 klass->marshal_info->ptr_to_str = res;
8681 * generates IL code for the synchronized wrapper: the generated method
8682 * calls METHOD while locking 'this' or the parent type.
8685 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8687 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8688 MonoMethodSignature *sig;
8689 MonoExceptionClause *clause;
8690 MonoMethodBuilder *mb;
8693 int i, pos, this_local, ret_local = 0;
8697 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8700 cache = get_cache (&method->klass->image->synchronized_cache, mono_aligned_addr_hash, NULL);
8701 if ((res = mono_marshal_find_in_cache (cache, method)))
8704 sig = signature_dup (method->klass->image, mono_method_signature (method));
8707 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8710 if (!MONO_TYPE_IS_VOID (sig->ret))
8711 ret_local = mono_mb_add_local (mb, sig->ret);
8713 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8714 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8715 /* This will throw the type load exception when the wrapper is compiled */
8716 mono_mb_emit_byte (mb, CEE_LDNULL);
8717 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8718 mono_mb_emit_byte (mb, CEE_POP);
8720 if (!MONO_TYPE_IS_VOID (sig->ret))
8721 mono_mb_emit_ldloc (mb, ret_local);
8722 mono_mb_emit_byte (mb, CEE_RET);
8724 res = mono_mb_create_and_cache (cache, method,
8725 mb, sig, sig->param_count + 16);
8732 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8734 clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8735 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8737 mono_loader_lock ();
8739 if (!enter_method) {
8740 MonoMethodDesc *desc;
8742 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
8743 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8744 g_assert (enter_method);
8745 mono_method_desc_free (desc);
8747 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8748 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8749 g_assert (exit_method);
8750 mono_method_desc_free (desc);
8752 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8753 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.monotype_class->parent);
8754 g_assert (gettypefromhandle_method);
8755 mono_method_desc_free (desc);
8758 mono_loader_unlock ();
8760 /* Push this or the type object */
8761 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8762 /* We have special handling for this in the JIT */
8763 int index = mono_mb_add_data (mb, method->klass);
8764 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8765 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8766 mono_mb_emit_i4 (mb, index);
8768 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8771 mono_mb_emit_ldarg (mb, 0);
8772 mono_mb_emit_stloc (mb, this_local);
8774 /* Call Monitor::Enter() */
8775 mono_mb_emit_ldloc (mb, this_local);
8776 mono_mb_emit_managed_call (mb, enter_method, NULL);
8778 clause->try_offset = mono_mb_get_label (mb);
8780 /* Call the method */
8782 mono_mb_emit_ldarg (mb, 0);
8783 for (i = 0; i < sig->param_count; i++)
8784 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8786 mono_mb_emit_managed_call (mb, method, NULL);
8788 if (!MONO_TYPE_IS_VOID (sig->ret))
8789 mono_mb_emit_stloc (mb, ret_local);
8791 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8793 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8794 clause->handler_offset = mono_mb_get_label (mb);
8796 /* Call Monitor::Exit() */
8797 mono_mb_emit_ldloc (mb, this_local);
8798 mono_mb_emit_managed_call (mb, exit_method, NULL);
8799 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8801 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
8803 mono_mb_patch_branch (mb, pos);
8804 if (!MONO_TYPE_IS_VOID (sig->ret))
8805 mono_mb_emit_ldloc (mb, ret_local);
8806 mono_mb_emit_byte (mb, CEE_RET);
8808 mono_mb_set_clauses (mb, 1, clause);
8810 res = mono_mb_create_and_cache (cache, method,
8811 mb, sig, sig->param_count + 16);
8819 * the returned method calls 'method' unboxing the this argument
8822 mono_marshal_get_unbox_wrapper (MonoMethod *method)
8824 MonoMethodSignature *sig = mono_method_signature (method);
8826 MonoMethodBuilder *mb;
8830 cache = get_cache (&method->klass->image->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
8831 if ((res = mono_marshal_find_in_cache (cache, method)))
8834 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
8836 g_assert (sig->hasthis);
8838 mono_mb_emit_ldarg (mb, 0);
8839 mono_mb_emit_icon (mb, sizeof (MonoObject));
8840 mono_mb_emit_byte (mb, CEE_ADD);
8841 for (i = 0; i < sig->param_count; ++i)
8842 mono_mb_emit_ldarg (mb, i + 1);
8843 mono_mb_emit_managed_call (mb, method, NULL);
8844 mono_mb_emit_byte (mb, CEE_RET);
8846 res = mono_mb_create_and_cache (cache, method,
8847 mb, sig, sig->param_count + 16);
8850 /* 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)); */
8856 mono_marshal_get_stelemref ()
8858 static MonoMethod* ret = NULL;
8859 MonoMethodSignature *sig;
8860 MonoMethodBuilder *mb;
8862 guint32 b1, b2, b3, b4;
8865 int array_slot_addr;
8870 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
8873 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8875 /* void stelemref (void* array, int idx, void* value) */
8876 sig->ret = &mono_defaults.void_class->byval_arg;
8877 sig->params [0] = &mono_defaults.object_class->byval_arg;
8878 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
8879 sig->params [2] = &mono_defaults.object_class->byval_arg;
8881 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8882 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8883 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
8887 <ldelema (bound check)>
8891 aklass = array->vtable->klass->element_class;
8892 vklass = value->vtable->klass;
8894 if (vklass->idepth < aklass->idepth)
8897 if (vklass->supertypes [aklass->idepth - 1] != aklass)
8901 *array_slot_addr = value;
8905 if (mono_object_isinst (value, aklass))
8908 throw new ArrayTypeMismatchException ();
8911 /* ldelema (implicit bound check) */
8912 mono_mb_emit_ldarg (mb, 0);
8913 mono_mb_emit_ldarg (mb, 1);
8914 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
8915 mono_mb_emit_stloc (mb, array_slot_addr);
8917 /* if (!value) goto do_store */
8918 mono_mb_emit_ldarg (mb, 2);
8919 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8921 /* aklass = array->vtable->klass->element_class */
8922 mono_mb_emit_ldarg (mb, 0);
8923 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8924 mono_mb_emit_byte (mb, CEE_LDIND_I);
8925 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8926 mono_mb_emit_byte (mb, CEE_LDIND_I);
8927 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
8928 mono_mb_emit_byte (mb, CEE_LDIND_I);
8929 mono_mb_emit_stloc (mb, aklass);
8931 /* vklass = value->vtable->klass */
8932 mono_mb_emit_ldarg (mb, 2);
8933 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
8934 mono_mb_emit_byte (mb, CEE_LDIND_I);
8935 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
8936 mono_mb_emit_byte (mb, CEE_LDIND_I);
8937 mono_mb_emit_stloc (mb, vklass);
8939 /* if (vklass->idepth < aklass->idepth) goto failue */
8940 mono_mb_emit_ldloc (mb, vklass);
8941 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8942 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8944 mono_mb_emit_ldloc (mb, aklass);
8945 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8946 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8948 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
8950 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
8951 mono_mb_emit_ldloc (mb, vklass);
8952 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
8953 mono_mb_emit_byte (mb, CEE_LDIND_I);
8955 mono_mb_emit_ldloc (mb, aklass);
8956 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
8957 mono_mb_emit_byte (mb, CEE_LDIND_U2);
8958 mono_mb_emit_icon (mb, 1);
8959 mono_mb_emit_byte (mb, CEE_SUB);
8960 mono_mb_emit_icon (mb, sizeof (void*));
8961 mono_mb_emit_byte (mb, CEE_MUL);
8962 mono_mb_emit_byte (mb, CEE_ADD);
8963 mono_mb_emit_byte (mb, CEE_LDIND_I);
8965 mono_mb_emit_ldloc (mb, aklass);
8967 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
8969 copy_pos = mono_mb_get_label (mb);
8971 mono_mb_patch_branch (mb, b1);
8972 mono_mb_emit_ldloc (mb, array_slot_addr);
8973 mono_mb_emit_ldarg (mb, 2);
8974 mono_mb_emit_byte (mb, CEE_STIND_REF);
8976 mono_mb_emit_byte (mb, CEE_RET);
8979 mono_mb_patch_branch (mb, b2);
8980 mono_mb_patch_branch (mb, b3);
8982 mono_mb_emit_ldarg (mb, 2);
8983 mono_mb_emit_ldloc (mb, aklass);
8984 mono_mb_emit_icall (mb, mono_object_isinst);
8986 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8987 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
8988 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
8990 mono_mb_emit_byte (mb, CEE_RET);
8991 ret = mono_mb_create_method (mb, sig, 4);
9002 /* LOCKING: vars accessed under the marshal lock */
9003 static ArrayElemAddr *elem_addr_cache = NULL;
9004 static int elem_addr_cache_size = 0;
9005 static int elem_addr_cache_next = 0;
9008 * mono_marshal_get_array_address:
9009 * @rank: rank of the array type
9010 * @elem_size: size in bytes of an element of an array.
9012 * Returns a MonoMethd that implements the code to get the address
9013 * of an element in a multi-dimenasional array of @rank dimensions.
9014 * The returned method takes an array as the first argument and then
9015 * @rank indexes for the @rank dimensions.
9018 mono_marshal_get_array_address (int rank, int elem_size)
9021 MonoMethodBuilder *mb;
9022 MonoMethodSignature *sig;
9023 int i, bounds, ind, realidx;
9024 int branch_pos, *branch_positions;
9028 mono_marshal_lock ();
9029 for (i = 0; i < elem_addr_cache_next; ++i) {
9030 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9031 ret = elem_addr_cache [i].method;
9035 mono_marshal_unlock ();
9039 branch_positions = g_new0 (int, rank);
9041 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9043 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9044 sig->ret = &mono_defaults.int_class->byval_arg;
9045 sig->params [0] = &mono_defaults.object_class->byval_arg;
9046 for (i = 0; i < rank; ++i) {
9047 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9050 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9052 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9053 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9054 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9056 /* bounds = array->bounds; */
9057 mono_mb_emit_ldarg (mb, 0);
9058 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9059 mono_mb_emit_byte (mb, CEE_LDIND_I);
9060 mono_mb_emit_stloc (mb, bounds);
9062 /* ind is the overall element index, realidx is the partial index in a single dimension */
9063 /* ind = idx0 - bounds [0].lower_bound */
9064 mono_mb_emit_ldarg (mb, 1);
9065 mono_mb_emit_ldloc (mb, bounds);
9066 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9067 mono_mb_emit_byte (mb, CEE_ADD);
9068 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9069 mono_mb_emit_byte (mb, CEE_SUB);
9070 mono_mb_emit_stloc (mb, ind);
9071 /* if (ind >= bounds [0].length) goto exeception; */
9072 mono_mb_emit_ldloc (mb, ind);
9073 mono_mb_emit_ldloc (mb, bounds);
9074 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9075 mono_mb_emit_byte (mb, CEE_ADD);
9076 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9077 /* note that we use unsigned comparison */
9078 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9080 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9081 * We could also decide to ignore the passed elem_size and get it
9082 * from the array object, to reduce the number of methods we generate:
9083 * the additional cost is 3 memory loads and a non-immediate mul.
9085 for (i = 1; i < rank; ++i) {
9086 /* realidx = idxi - bounds [i].lower_bound */
9087 mono_mb_emit_ldarg (mb, 1 + i);
9088 mono_mb_emit_ldloc (mb, bounds);
9089 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9090 mono_mb_emit_byte (mb, CEE_ADD);
9091 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9092 mono_mb_emit_byte (mb, CEE_SUB);
9093 mono_mb_emit_stloc (mb, realidx);
9094 /* if (realidx >= bounds [i].length) goto exeception; */
9095 mono_mb_emit_ldloc (mb, realidx);
9096 mono_mb_emit_ldloc (mb, bounds);
9097 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9098 mono_mb_emit_byte (mb, CEE_ADD);
9099 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9100 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9101 /* ind = ind * bounds [i].length + realidx */
9102 mono_mb_emit_ldloc (mb, ind);
9103 mono_mb_emit_ldloc (mb, bounds);
9104 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9105 mono_mb_emit_byte (mb, CEE_ADD);
9106 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9107 mono_mb_emit_byte (mb, CEE_MUL);
9108 mono_mb_emit_ldloc (mb, realidx);
9109 mono_mb_emit_byte (mb, CEE_ADD);
9110 mono_mb_emit_stloc (mb, ind);
9113 /* return array->vector + ind * element_size */
9114 mono_mb_emit_ldarg (mb, 0);
9115 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9116 mono_mb_emit_ldloc (mb, ind);
9117 mono_mb_emit_icon (mb, elem_size);
9118 mono_mb_emit_byte (mb, CEE_MUL);
9119 mono_mb_emit_byte (mb, CEE_ADD);
9120 mono_mb_emit_byte (mb, CEE_RET);
9122 /* patch the branches to get here and throw */
9123 for (i = 1; i < rank; ++i) {
9124 mono_mb_patch_branch (mb, branch_positions [i]);
9126 mono_mb_patch_branch (mb, branch_pos);
9127 /* throw exception */
9128 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9130 g_free (branch_positions);
9131 ret = mono_mb_create_method (mb, sig, 4);
9134 /* cache the result */
9136 mono_marshal_lock ();
9137 for (i = 0; i < elem_addr_cache_next; ++i) {
9138 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9139 /* FIXME: free ret */
9140 ret = elem_addr_cache [i].method;
9146 if (elem_addr_cache_next >= elem_addr_cache_size) {
9147 int new_size = elem_addr_cache_size + 4;
9148 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9149 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9150 g_free (elem_addr_cache);
9151 elem_addr_cache = new_array;
9152 elem_addr_cache_size = new_size;
9154 elem_addr_cache [elem_addr_cache_next].rank = rank;
9155 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9156 elem_addr_cache [elem_addr_cache_next].method = ret;
9158 mono_marshal_unlock ();
9163 mono_marshal_alloc (gulong size)
9167 #ifdef PLATFORM_WIN32
9168 res = CoTaskMemAlloc (size);
9170 res = g_try_malloc ((gulong)size);
9172 mono_gc_out_of_memory ((gulong)size);
9178 mono_marshal_free (gpointer ptr)
9180 #ifdef PLATFORM_WIN32
9181 CoTaskMemFree (ptr);
9188 mono_marshal_free_array (gpointer *ptr, int size)
9195 for (i = 0; i < size; i++)
9201 mono_marshal_string_to_utf16 (MonoString *s)
9203 return s ? mono_string_chars (s) : NULL;
9207 mono_marshal_string_to_utf16_copy (MonoString *s)
9212 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9213 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9214 res [mono_string_length (s)] = 0;
9220 * mono_marshal_set_last_error:
9222 * This function is invoked to set the last error value from a P/Invoke call
9223 * which has SetLastError set.
9226 mono_marshal_set_last_error (void)
9229 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9231 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9236 mono_marshal_set_last_error_windows (int error)
9239 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9244 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9245 gpointer dest, gint32 length)
9250 MONO_ARCH_SAVE_REGS;
9252 MONO_CHECK_ARG_NULL (src);
9253 MONO_CHECK_ARG_NULL (dest);
9255 if (src->obj.vtable->klass->rank != 1)
9256 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9257 if (start_index < 0)
9258 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9260 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9261 if (start_index + length > mono_array_length (src))
9262 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9264 element_size = mono_array_element_size (src->obj.vtable->klass);
9266 /* no references should be involved */
9267 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9269 memcpy (dest, source_addr, length * element_size);
9273 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9274 MonoArray *dest, gint32 length)
9279 MONO_ARCH_SAVE_REGS;
9281 MONO_CHECK_ARG_NULL (src);
9282 MONO_CHECK_ARG_NULL (dest);
9284 if (dest->obj.vtable->klass->rank != 1)
9285 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9286 if (start_index < 0)
9287 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9289 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9290 if (start_index + length > mono_array_length (dest))
9291 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9293 element_size = mono_array_element_size (dest->obj.vtable->klass);
9295 /* no references should be involved */
9296 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9298 memcpy (dest_addr, src, length * element_size);
9301 #if NO_UNALIGNED_ACCESS
9302 #define RETURN_UNALIGNED(type, addr) \
9305 memcpy(&val, p + offset, sizeof(val)); \
9308 #define WRITE_UNALIGNED(type, addr, val) \
9309 memcpy(addr, &val, sizeof(type))
9311 #define RETURN_UNALIGNED(type, addr) \
9312 return *(type*)(p + offset);
9313 #define WRITE_UNALIGNED(type, addr, val) \
9314 (*(type *)(addr) = (val))
9318 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9322 MONO_ARCH_SAVE_REGS;
9324 RETURN_UNALIGNED(gpointer, p + offset);
9328 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9332 MONO_ARCH_SAVE_REGS;
9334 return *(unsigned char*)(p + offset);
9338 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9342 MONO_ARCH_SAVE_REGS;
9344 RETURN_UNALIGNED(gint16, p + offset);
9348 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9352 MONO_ARCH_SAVE_REGS;
9354 RETURN_UNALIGNED(gint32, p + offset);
9358 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9362 MONO_ARCH_SAVE_REGS;
9364 RETURN_UNALIGNED(gint64, p + offset);
9368 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9372 MONO_ARCH_SAVE_REGS;
9374 *(unsigned char*)(p + offset) = val;
9378 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9382 MONO_ARCH_SAVE_REGS;
9384 WRITE_UNALIGNED(gpointer, p + offset, val);
9388 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9392 MONO_ARCH_SAVE_REGS;
9394 WRITE_UNALIGNED(gint16, p + offset, val);
9398 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9402 MONO_ARCH_SAVE_REGS;
9404 WRITE_UNALIGNED(gint32, p + offset, val);
9408 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9412 MONO_ARCH_SAVE_REGS;
9414 WRITE_UNALIGNED(gint64, p + offset, val);
9418 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9420 MONO_ARCH_SAVE_REGS;
9425 return mono_string_new (mono_domain_get (), ptr);
9429 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9431 MONO_ARCH_SAVE_REGS;
9434 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9435 g_assert_not_reached ();
9438 return mono_string_new_len (mono_domain_get (), ptr, len);
9443 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9445 MonoDomain *domain = mono_domain_get ();
9449 MONO_ARCH_SAVE_REGS;
9457 return mono_string_new_utf16 (domain, ptr, len);
9461 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9463 MonoDomain *domain = mono_domain_get ();
9465 MONO_ARCH_SAVE_REGS;
9468 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9469 g_assert_not_reached ();
9472 return mono_string_new_utf16 (domain, ptr, len);
9477 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
9479 MONO_ARCH_SAVE_REGS;
9481 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
9485 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
9491 MONO_ARCH_SAVE_REGS;
9493 MONO_CHECK_ARG_NULL (rtype);
9496 klass = mono_class_from_mono_type (type);
9497 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
9499 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9503 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
9504 exc = mono_get_exception_argument ("t", msg);
9506 mono_raise_exception (exc);
9510 return mono_class_native_size (klass, NULL);
9514 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
9519 MONO_ARCH_SAVE_REGS;
9521 MONO_CHECK_ARG_NULL (obj);
9522 MONO_CHECK_ARG_NULL (dst);
9524 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
9528 pa [2] = &delete_old;
9530 mono_runtime_invoke (method, NULL, pa, NULL);
9534 ptr_to_structure (gpointer src, MonoObject *dst)
9539 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
9544 mono_runtime_invoke (method, NULL, pa, NULL);
9548 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
9552 MONO_ARCH_SAVE_REGS;
9554 MONO_CHECK_ARG_NULL (src);
9555 MONO_CHECK_ARG_NULL (dst);
9557 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
9559 if (t->type == MONO_TYPE_VALUETYPE) {
9563 tmp = g_strdup_printf ("Destination is a boxed value type.");
9564 exc = mono_get_exception_argument ("dst", tmp);
9567 mono_raise_exception (exc);
9571 ptr_to_structure (src, dst);
9575 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
9577 MonoDomain *domain = mono_domain_get ();
9580 MONO_ARCH_SAVE_REGS;
9582 MONO_CHECK_ARG_NULL (src);
9583 MONO_CHECK_ARG_NULL (type);
9585 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
9587 ptr_to_structure (src, res);
9593 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
9595 MonoMarshalType *info;
9598 int match_index = -1;
9600 MONO_ARCH_SAVE_REGS;
9602 MONO_CHECK_ARG_NULL (type);
9603 MONO_CHECK_ARG_NULL (field_name);
9605 fname = mono_string_to_utf8 (field_name);
9606 klass = mono_class_from_mono_type (type->type);
9608 while (klass && match_index == -1) {
9609 MonoClassField* field;
9611 gpointer iter = NULL;
9612 while ((field = mono_class_get_fields (klass, &iter))) {
9613 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9615 if (!strcmp (fname, mono_field_get_name (field))) {
9622 if (match_index == -1)
9623 klass = klass->parent;
9628 if(match_index == -1) {
9632 /* Get back original class instance */
9633 klass = mono_class_from_mono_type (type->type);
9635 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
9636 exc = mono_get_exception_argument ("fieldName", tmp);
9639 mono_raise_exception ((MonoException*)exc);
9642 info = mono_marshal_load_type_info (klass);
9643 return info->fields [match_index].offset;
9647 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
9649 #ifdef PLATFORM_WIN32
9652 tres = mono_string_to_utf8 (string);
9656 len = strlen (tres) + 1;
9657 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
9658 memcpy (ret, tres, len);
9663 return mono_string_to_utf8 (string);
9668 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
9670 MONO_ARCH_SAVE_REGS;
9675 #ifdef PLATFORM_WIN32
9676 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
9677 ((mono_string_length (string) + 1) * 2);
9679 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
9681 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
9682 res [mono_string_length (string)] = 0;
9688 mono_struct_delete_old (MonoClass *klass, char *ptr)
9690 MonoMarshalType *info;
9693 info = mono_marshal_load_type_info (klass);
9695 for (i = 0; i < info->num_fields; i++) {
9696 MonoMarshalNative ntype;
9697 MonoMarshalConv conv;
9698 MonoType *ftype = info->fields [i].field->type;
9701 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
9704 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
9705 klass->unicode, &conv);
9707 cpos = ptr + info->fields [i].offset;
9710 case MONO_MARSHAL_CONV_NONE:
9711 if (MONO_TYPE_ISSTRUCT (ftype)) {
9712 mono_struct_delete_old (ftype->data.klass, cpos);
9716 case MONO_MARSHAL_CONV_STR_LPWSTR:
9717 /* We assume this field points inside a MonoString */
9719 case MONO_MARSHAL_CONV_STR_LPTSTR:
9720 #ifdef PLATFORM_WIN32
9721 /* We assume this field points inside a MonoString
9725 case MONO_MARSHAL_CONV_STR_LPSTR:
9726 case MONO_MARSHAL_CONV_STR_BSTR:
9727 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
9728 case MONO_MARSHAL_CONV_STR_TBSTR:
9729 mono_marshal_free (*(gpointer *)cpos);
9739 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
9743 MONO_ARCH_SAVE_REGS;
9745 MONO_CHECK_ARG_NULL (src);
9746 MONO_CHECK_ARG_NULL (type);
9748 klass = mono_class_from_mono_type (type->type);
9750 mono_struct_delete_old (klass, (char *)src);
9754 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
9758 MONO_ARCH_SAVE_REGS;
9760 if ((gulong)size == 0)
9761 /* This returns a valid pointer for size 0 on MS.NET */
9764 #ifdef PLATFORM_WIN32
9765 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
9767 res = g_try_malloc ((gulong)size);
9770 mono_gc_out_of_memory ((gulong)size);
9776 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
9781 mono_gc_out_of_memory ((gulong)size);
9785 #ifdef PLATFORM_WIN32
9786 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
9788 res = g_try_realloc (ptr, (gulong)size);
9791 mono_gc_out_of_memory ((gulong)size);
9797 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
9799 MONO_ARCH_SAVE_REGS;
9801 #ifdef PLATFORM_WIN32
9809 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
9811 MONO_ARCH_SAVE_REGS;
9813 #ifdef PLATFORM_WIN32
9814 return CoTaskMemAlloc (size);
9816 return g_try_malloc ((gulong)size);
9821 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
9823 MONO_ARCH_SAVE_REGS;
9825 #ifdef PLATFORM_WIN32
9826 CoTaskMemFree (ptr);
9833 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
9835 MONO_ARCH_SAVE_REGS;
9837 #ifdef PLATFORM_WIN32
9838 return CoTaskMemRealloc (ptr, size);
9840 return g_try_realloc (ptr, (gulong)size);
9845 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
9847 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
9851 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
9853 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
9857 * mono_marshal_is_loading_type_info:
9859 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
9863 mono_marshal_is_loading_type_info (MonoClass *klass)
9865 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
9867 return g_slist_find (loads_list, klass) != NULL;
9871 * mono_marshal_load_type_info:
9873 * Initialize klass->marshal_info using information from metadata. This function can
9874 * recursively call itself, and the caller is responsible to avoid that by calling
9875 * mono_marshal_is_loading_type_info () beforehand.
9877 * LOCKING: Acquires the loader lock.
9880 mono_marshal_load_type_info (MonoClass* klass)
9883 guint32 native_size = 0, min_align = 1;
9884 MonoMarshalType *info;
9885 MonoClassField* field;
9890 g_assert (klass != NULL);
9892 if (klass->marshal_info)
9893 return klass->marshal_info;
9896 mono_class_init (klass);
9898 mono_loader_lock ();
9900 if (klass->marshal_info) {
9901 mono_loader_unlock ();
9902 return klass->marshal_info;
9906 * This function can recursively call itself, so we keep the list of classes which are
9907 * under initialization in a TLS list.
9909 g_assert (!mono_marshal_is_loading_type_info (klass));
9910 loads_list = TlsGetValue (load_type_info_tls_id);
9911 loads_list = g_slist_prepend (loads_list, klass);
9912 TlsSetValue (load_type_info_tls_id, loads_list);
9915 while ((field = mono_class_get_fields (klass, &iter))) {
9916 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9918 if (mono_field_is_deleted (field))
9923 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
9925 /* The mempool is protected by the loader lock */
9926 info = mono_image_alloc0 (klass->image, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
9927 info->num_fields = count;
9929 /* Try to find a size for this type in metadata */
9930 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
9932 if (klass->parent) {
9933 int parent_size = mono_class_native_size (klass->parent, NULL);
9935 /* Add parent size to real size */
9936 native_size += parent_size;
9937 info->native_size = parent_size;
9942 while ((field = mono_class_get_fields (klass, &iter))) {
9946 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
9949 if (mono_field_is_deleted (field))
9951 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
9952 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
9953 NULL, NULL, &info->fields [j].mspec);
9955 info->fields [j].field = field;
9957 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
9958 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
9959 /* This field is a hack inserted by MCS to empty structures */
9964 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
9965 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
9966 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9967 &align, TRUE, klass->unicode);
9968 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9969 min_align = MAX (align, min_align);
9970 info->fields [j].offset = info->native_size;
9971 info->fields [j].offset += align - 1;
9972 info->fields [j].offset &= ~(align - 1);
9973 info->native_size = info->fields [j].offset + size;
9975 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
9976 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
9977 &align, TRUE, klass->unicode);
9978 align = klass->packing_size ? MIN (klass->packing_size, align): align;
9979 min_align = MAX (align, min_align);
9980 info->fields [j].offset = field->offset - sizeof (MonoObject);
9981 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
9987 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
9988 info->native_size = MAX (native_size, info->native_size);
9991 if (info->native_size & (min_align - 1)) {
9992 info->native_size += min_align - 1;
9993 info->native_size &= ~(min_align - 1);
9996 info->min_align = min_align;
9998 /* Update the class's blittable info, if the layouts don't match */
9999 if (info->native_size != mono_class_value_size (klass, NULL))
10000 klass->blittable = FALSE;
10002 /* If this is an array type, ensure that we have element info */
10003 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10004 mono_marshal_load_type_info (klass->element_class);
10007 loads_list = TlsGetValue (load_type_info_tls_id);
10008 loads_list = g_slist_remove (loads_list, klass);
10009 TlsSetValue (load_type_info_tls_id, loads_list);
10011 /*We do double-checking locking on marshal_info */
10012 mono_memory_barrier ();
10014 klass->marshal_info = info;
10016 mono_loader_unlock ();
10018 return klass->marshal_info;
10022 * mono_class_native_size:
10025 * Returns: the native size of an object instance (when marshaled
10026 * to unmanaged code)
10029 mono_class_native_size (MonoClass *klass, guint32 *align)
10031 if (!klass->marshal_info) {
10032 if (mono_marshal_is_loading_type_info (klass)) {
10037 mono_marshal_load_type_info (klass);
10042 *align = klass->marshal_info->min_align;
10044 return klass->marshal_info->native_size;
10047 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10048 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10049 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10050 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10053 * mono_type_native_stack_size:
10054 * @t: the type to return the size it uses on the stack
10056 * Returns: the number of bytes required to hold an instance of this
10057 * type on the native stack
10060 mono_type_native_stack_size (MonoType *t, guint32 *align)
10064 g_assert (t != NULL);
10070 *align = sizeof (gpointer);
10071 return sizeof (gpointer);
10075 case MONO_TYPE_BOOLEAN:
10076 case MONO_TYPE_CHAR:
10087 case MONO_TYPE_STRING:
10088 case MONO_TYPE_OBJECT:
10089 case MONO_TYPE_CLASS:
10090 case MONO_TYPE_SZARRAY:
10091 case MONO_TYPE_PTR:
10092 case MONO_TYPE_FNPTR:
10093 case MONO_TYPE_ARRAY:
10094 *align = sizeof (gpointer);
10095 return sizeof (gpointer);
10100 *align = ALIGNMENT (gdouble);
10104 *align = ALIGNMENT (glong);
10106 case MONO_TYPE_GENERICINST:
10107 if (!mono_type_generic_inst_is_valuetype (t)) {
10108 *align = sizeof (gpointer);
10109 return sizeof (gpointer);
10112 case MONO_TYPE_TYPEDBYREF:
10113 case MONO_TYPE_VALUETYPE: {
10115 MonoClass *klass = mono_class_from_mono_type (t);
10117 if (klass->enumtype)
10118 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10120 size = mono_class_native_size (klass, align);
10121 *align = *align + 3;
10131 g_error ("type 0x%02x unknown", t->type);
10137 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10138 gboolean as_field, gboolean unicode)
10140 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10143 switch (native_type) {
10144 case MONO_NATIVE_BOOLEAN:
10147 case MONO_NATIVE_I1:
10148 case MONO_NATIVE_U1:
10151 case MONO_NATIVE_I2:
10152 case MONO_NATIVE_U2:
10153 case MONO_NATIVE_VARIANTBOOL:
10156 case MONO_NATIVE_I4:
10157 case MONO_NATIVE_U4:
10158 case MONO_NATIVE_ERROR:
10161 case MONO_NATIVE_I8:
10162 case MONO_NATIVE_U8:
10163 *align = ALIGNMENT(guint64);
10165 case MONO_NATIVE_R4:
10168 case MONO_NATIVE_R8:
10169 *align = ALIGNMENT(double);
10171 case MONO_NATIVE_INT:
10172 case MONO_NATIVE_UINT:
10173 case MONO_NATIVE_LPSTR:
10174 case MONO_NATIVE_LPWSTR:
10175 case MONO_NATIVE_LPTSTR:
10176 case MONO_NATIVE_BSTR:
10177 case MONO_NATIVE_ANSIBSTR:
10178 case MONO_NATIVE_TBSTR:
10179 case MONO_NATIVE_LPARRAY:
10180 case MONO_NATIVE_SAFEARRAY:
10181 case MONO_NATIVE_IUNKNOWN:
10182 case MONO_NATIVE_IDISPATCH:
10183 case MONO_NATIVE_INTERFACE:
10184 case MONO_NATIVE_ASANY:
10185 case MONO_NATIVE_FUNC:
10186 case MONO_NATIVE_LPSTRUCT:
10187 *align = ALIGNMENT(gpointer);
10188 return sizeof (gpointer);
10189 case MONO_NATIVE_STRUCT:
10190 klass = mono_class_from_mono_type (type);
10191 if (klass == mono_defaults.object_class &&
10192 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10196 return mono_class_native_size (klass, align);
10197 case MONO_NATIVE_BYVALTSTR: {
10198 int esize = unicode ? 2: 1;
10201 return mspec->data.array_data.num_elem * esize;
10203 case MONO_NATIVE_BYVALARRAY: {
10204 // FIXME: Have to consider ArraySubType
10206 klass = mono_class_from_mono_type (type);
10207 if (klass->element_class == mono_defaults.char_class) {
10208 esize = unicode ? 2 : 1;
10211 esize = mono_class_native_size (klass->element_class, align);
10214 return mspec->data.array_data.num_elem * esize;
10216 case MONO_NATIVE_CUSTOM:
10217 *align = sizeof (gpointer);
10218 return sizeof (gpointer);
10220 case MONO_NATIVE_CURRENCY:
10221 case MONO_NATIVE_VBBYREFSTR:
10223 g_error ("native type %02x not implemented", native_type);
10226 g_assert_not_reached ();
10231 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10239 t = &o->vtable->klass->byval_arg;
10243 case MONO_TYPE_PTR:
10246 case MONO_TYPE_BOOLEAN:
10249 case MONO_TYPE_CHAR:
10254 return mono_object_unbox (o);
10256 case MONO_TYPE_STRING:
10257 switch (string_encoding) {
10258 case MONO_NATIVE_LPWSTR:
10259 return mono_string_to_utf16 ((MonoString*)o);
10261 case MONO_NATIVE_LPSTR:
10262 return mono_string_to_lpstr ((MonoString*)o);
10265 g_warning ("marshaling conversion %d not implemented", string_encoding);
10266 g_assert_not_reached ();
10269 case MONO_TYPE_CLASS:
10270 case MONO_TYPE_VALUETYPE: {
10271 MonoMethod *method;
10274 MonoBoolean delete_old = FALSE;
10276 klass = t->data.klass;
10278 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10281 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10282 klass->blittable || klass->enumtype))
10283 return mono_object_unbox (o);
10285 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10287 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10288 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10292 pa [2] = &delete_old;
10294 mono_runtime_invoke (method, NULL, pa, NULL);
10301 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10307 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
10315 t = &o->vtable->klass->byval_arg;
10317 case MONO_TYPE_STRING:
10318 switch (string_encoding) {
10319 case MONO_NATIVE_LPWSTR:
10320 case MONO_NATIVE_LPSTR:
10321 mono_marshal_free (ptr);
10324 g_warning ("marshaling conversion %d not implemented", string_encoding);
10325 g_assert_not_reached ();
10328 case MONO_TYPE_CLASS:
10329 case MONO_TYPE_VALUETYPE: {
10330 klass = t->data.klass;
10332 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10333 klass->blittable || klass->enumtype))
10336 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
10337 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
10343 mono_runtime_invoke (method, NULL, pa, NULL);
10346 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10347 mono_struct_delete_old (klass, ptr);
10350 mono_marshal_free (ptr);
10359 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
10361 MonoMethodSignature *sig, *csig;
10362 MonoMethodBuilder *mb;
10366 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10367 mb->method->slot = -1;
10369 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
10370 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
10372 sig = mono_method_signature (method);
10373 csig = signature_dup (method->klass->image, sig);
10374 csig->generic_param_count = 0;
10376 mono_mb_emit_ldarg (mb, 0);
10377 for (i = 0; i < csig->param_count; i++)
10378 mono_mb_emit_ldarg (mb, i + 1);
10379 mono_mb_emit_managed_call (mb, method, NULL);
10380 mono_mb_emit_byte (mb, CEE_RET);
10382 /* We can corlib internal methods */
10383 mb->skip_visibility = TRUE;
10385 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
10393 * The mono_win32_compat_* functions are implementations of inline
10394 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
10395 * although not exported by kernel32.
10397 * We map the appropiate kernel32 entries to these functions using
10398 * dllmaps declared in the global etc/mono/config.
10402 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
10404 if (!dest || !source)
10407 memcpy (dest, source, length);
10411 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
10413 memset (dest, fill, length);
10417 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
10419 if (!dest || !source)
10422 memmove (dest, source, length);
10426 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
10428 memset (dest, 0, length);
10432 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
10437 for (i = 0; i < len; ++i)
10441 g_assert (i < len);
10444 while (byte && !(byte & 1))
10446 g_assert (byte == 1);
10449 *bitmask = buf [i];
10453 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
10455 MonoMethodBuilder *mb;
10456 MonoMethodSignature *sig, *csig;
10457 MonoExceptionClause *clause;
10462 int i, param_count, sig_size, pos_leave;
10466 klass = method->klass;
10467 image = method->klass->image;
10468 cache = get_cache (&image->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
10470 if ((res = mono_marshal_find_in_cache (cache, method)))
10473 sig = mono_method_signature (method);
10474 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
10476 /* add "this" and exception param */
10477 param_count = sig->param_count + sig->hasthis + 1;
10479 /* dup & extend signature */
10480 csig = mono_metadata_signature_alloc (image, param_count);
10481 sig_size = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
10482 memcpy (csig, sig, sig_size);
10483 csig->param_count = param_count;
10486 csig->call_convention = MONO_CALL_DEFAULT;
10488 if (sig->hasthis) {
10490 csig->params [0] = &klass->byval_arg;
10491 /* move params up by one */
10492 for (i = 0; i < sig->param_count; i++)
10493 csig->params [i + 1] = sig->params [i];
10496 /* setup exception param as byref+[out] */
10497 csig->params [param_count - 1] = mono_metadata_type_dup (image,
10498 &mono_defaults.exception_class->byval_arg);
10499 csig->params [param_count - 1]->byref = 1;
10500 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
10502 /* convert struct return to object */
10503 if (MONO_TYPE_ISSTRUCT (sig->ret))
10504 csig->ret = &mono_defaults.object_class->byval_arg;
10506 /* local 0 (temp for exception object) */
10507 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
10509 /* local 1 (temp for result) */
10510 if (!MONO_TYPE_IS_VOID (sig->ret))
10511 mono_mb_add_local (mb, sig->ret);
10513 /* clear exception arg */
10514 mono_mb_emit_ldarg (mb, param_count - 1);
10515 mono_mb_emit_byte (mb, CEE_LDNULL);
10516 mono_mb_emit_byte (mb, CEE_STIND_REF);
10519 clause = mono_image_alloc0 (image, sizeof (MonoExceptionClause));
10520 clause->try_offset = mono_mb_get_label (mb);
10522 /* push method's args */
10523 for (i = 0; i < param_count - 1; i++) {
10527 mono_mb_emit_ldarg (mb, i);
10529 /* get the byval type of the param */
10530 klass = mono_class_from_mono_type (csig->params [i]);
10531 type = &klass->byval_arg;
10533 /* unbox struct args */
10534 if (MONO_TYPE_ISSTRUCT (type)) {
10535 mono_mb_emit_op (mb, CEE_UNBOX, klass);
10537 /* byref args & and the "this" arg must remain a ptr.
10538 Otherwise make a copy of the value type */
10539 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
10540 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
10542 csig->params [i] = &mono_defaults.object_class->byval_arg;
10547 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
10548 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
10550 mono_mb_emit_op (mb, CEE_CALL, method);
10552 /* save result at local 1 */
10553 if (!MONO_TYPE_IS_VOID (sig->ret))
10554 mono_mb_emit_stloc (mb, 1);
10556 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
10559 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
10560 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
10561 clause->data.catch_class = mono_defaults.object_class;
10563 clause->handler_offset = mono_mb_get_label (mb);
10565 /* store exception at local 0 */
10566 mono_mb_emit_stloc (mb, 0);
10567 mono_mb_emit_ldarg (mb, param_count - 1);
10568 mono_mb_emit_ldloc (mb, 0);
10569 mono_mb_emit_byte (mb, CEE_STIND_REF);
10570 mono_mb_emit_branch (mb, CEE_LEAVE);
10572 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
10574 mono_mb_set_clauses (mb, 1, clause);
10576 mono_mb_patch_branch (mb, pos_leave);
10579 if (!MONO_TYPE_IS_VOID (sig->ret)) {
10580 mono_mb_emit_ldloc (mb, 1);
10582 /* box the return value */
10583 if (MONO_TYPE_ISSTRUCT (sig->ret))
10584 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
10587 mono_mb_emit_byte (mb, CEE_RET);
10589 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
10596 * mono_marshal_free_dynamic_wrappers:
10598 * Free wrappers of the dynamic method METHOD.
10601 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
10603 g_assert (method->dynamic);
10605 mono_marshal_lock ();
10607 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
10608 * they could be shared with other methods ?
10610 if (method->klass->image->runtime_invoke_direct_cache)
10611 g_hash_table_remove (method->klass->image->runtime_invoke_direct_cache, method);
10612 mono_marshal_unlock ();